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removed core library

This commit is contained in:
Martin McKeaveney 2020-05-06 20:49:21 +01:00
parent 910030e929
commit 0af5f12405
164 changed files with 5 additions and 23199 deletions
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6
packages/builder/src/components/common/core.js
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@ -1,5 +1,3 @@
import { common } from "../../../../core/src"
import { flow } from "lodash/fp";
export const pipe = common.$
export const events = common.eventsList
export const pipe = (arg, funcs) => flow(funcs)(arg)

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packages/core/.babelrc
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{
"presets": ["@babel/preset-env"],
"sourceMaps": "inline",
"retainLines": true,
"plugins": [
["@babel/plugin-transform-runtime",
{
"regenerator": true
}
]
]
}

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packages/core/.gitignore vendored
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# Logs
logs
*.log
# Runtime data
pids
*.pid
*.seed
# Directory for instrumented libs generated by jscoverage/JSCover
lib-cov
# Coverage directory used by tools like istanbul
coverage
# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
.grunt
# node-waf configuration
.lock-wscript
# Compiled binary addons (http://nodejs.org/api/addons.html)
build/Release
.eslintcache
# Dependency directory
# https://www.npmjs.org/doc/misc/npm-faq.html#should-i-check-my-node_modules-folder-into-git
node_modules
node_modules_ubuntu
node_modules_windows
# OSX
.DS_Store
# flow-typed
flow-typed/npm/*
!flow-typed/npm/module_vx.x.x.js
.idea
npm-debug.log.*
dist

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packages/core/.npmignore
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*
!dist/*

11
packages/core/.travis.yml
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sudo: required
notifications:
slack: budibase:Nx2QNi9CP87Nn7ah2A4Qdzyy
script:
- npm install
- npm install -g jest
- node node_modules/eslint/bin/eslint src/**/*.js
- jest

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packages/core/.vscode/launch.json vendored
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{
// Use IntelliSense to learn about possible attributes.
// Hover to view descriptions of existing attributes.
// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
"version": "0.2.0",
"configurations": [
{
"type": "node",
"request": "launch",
"name": "Launch Program",
"program": "${workspaceFolder}\\index.js"
}
]
}

0
packages/core/.vscode/settings.json vendored
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22
packages/core/CONTRIBUTING.md
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### Contributing to budibase-core
* The contributors are listed in [AUTHORS.md](https://github.com/budibase/budibase-core/blob/master/AUTHORS.md) (add yourself).
* This project uses a modified version of the MPLv2 license, see [LICENSE](https://github.com/budibase/budibase-core/blob/master/LICENSE).
* We use the [C4 (Collective Code Construction Contract)](https://rfc.zeromq.org/spec:42/C4/) process for contributions.
Please read this if you are unfamiliar with it.
* Please maintain the existing code style.
* Please try to keep your commits small and focussed.
* If the project diverges from your branch, please rebase instead of merging. This makes the commit graph easier to read.
#### p.S...
I am using contribution guidelines from the fantastic [ZeroMQ](https://github.com/zeromq) community. If you are interested why, it's because I believe in the ethos laid out by this community, and written about in depth in the book ["Social Architecture"](https://www.amazon.com/Social-Architecture-Building-line-Communities/dp/1533112452) by Pieter Hintjens.
I am very much open to evolving this to suit our needs.
Love from [Mike](https://github.com/mikebudi).

373
packages/core/LICENSE
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@ -1,373 +0,0 @@
Mozilla Public License Version 2.0
==================================
1. Definitions
--------------
1.1. "Contributor"
means each individual or legal entity that creates, contributes to
the creation of, or owns Covered Software.
1.2. "Contributor Version"
means the combination of the Contributions of others (if any) used
by a Contributor and that particular Contributor's Contribution.
1.3. "Contribution"
means Covered Software of a particular Contributor.
1.4. "Covered Software"
means Source Code Form to which the initial Contributor has attached
the notice in Exhibit A, the Executable Form of such Source Code
Form, and Modifications of such Source Code Form, in each case
including portions thereof.
1.5. "Incompatible With Secondary Licenses"
means
(a) that the initial Contributor has attached the notice described
in Exhibit B to the Covered Software; or
(b) that the Covered Software was made available under the terms of
version 1.1 or earlier of the License, but not also under the
terms of a Secondary License.
1.6. "Executable Form"
means any form of the work other than Source Code Form.
1.7. "Larger Work"
means a work that combines Covered Software with other material, in
a separate file or files, that is not Covered Software.
1.8. "License"
means this document.
1.9. "Licensable"
means having the right to grant, to the maximum extent possible,
whether at the time of the initial grant or subsequently, any and
all of the rights conveyed by this License.
1.10. "Modifications"
means any of the following:
(a) any file in Source Code Form that results from an addition to,
deletion from, or modification of the contents of Covered
Software; or
(b) any new file in Source Code Form that contains any Covered
Software.
1.11. "Patent Claims" of a Contributor
means any patent claim(s), including without limitation, method,
process, and apparatus claims, in any patent Licensable by such
Contributor that would be infringed, but for the grant of the
License, by the making, using, selling, offering for sale, having
made, import, or transfer of either its Contributions or its
Contributor Version.
1.12. "Secondary License"
means either the GNU General Public License, Version 2.0, the GNU
Lesser General Public License, Version 2.1, the GNU Affero General
Public License, Version 3.0, or any later versions of those
licenses.
1.13. "Source Code Form"
means the form of the work preferred for making modifications.
1.14. "You" (or "Your")
means an individual or a legal entity exercising rights under this
License. For legal entities, "You" includes any entity that
controls, is controlled by, or is under common control with You. For
purposes of this definition, "control" means (a) the power, direct
or indirect, to cause the direction or management of such entity,
whether by contract or otherwise, or (b) ownership of more than
fifty percent (50%) of the outstanding shares or beneficial
ownership of such entity.
2. License Grants and Conditions
--------------------------------
2.1. Grants
Each Contributor hereby grants You a world-wide, royalty-free,
non-exclusive license:
(a) under intellectual property rights (other than patent or trademark)
Licensable by such Contributor to use, reproduce, make available,
modify, display, perform, distribute, and otherwise exploit its
Contributions, either on an unmodified basis, with Modifications, or
as part of a Larger Work; and
(b) under Patent Claims of such Contributor to make, use, sell, offer
for sale, have made, import, and otherwise transfer either its
Contributions or its Contributor Version.
2.2. Effective Date
The licenses granted in Section 2.1 with respect to any Contribution
become effective for each Contribution on the date the Contributor first
distributes such Contribution.
2.3. Limitations on Grant Scope
The licenses granted in this Section 2 are the only rights granted under
this License. No additional rights or licenses will be implied from the
distribution or licensing of Covered Software under this License.
Notwithstanding Section 2.1(b) above, no patent license is granted by a
Contributor:
(a) for any code that a Contributor has removed from Covered Software;
or
(b) for infringements caused by: (i) Your and any other third party's
modifications of Covered Software, or (ii) the combination of its
Contributions with other software (except as part of its Contributor
Version); or
(c) under Patent Claims infringed by Covered Software in the absence of
its Contributions.
This License does not grant any rights in the trademarks, service marks,
or logos of any Contributor (except as may be necessary to comply with
the notice requirements in Section 3.4).
2.4. Subsequent Licenses
No Contributor makes additional grants as a result of Your choice to
distribute the Covered Software under a subsequent version of this
License (see Section 10.2) or under the terms of a Secondary License (if
permitted under the terms of Section 3.3).
2.5. Representation
Each Contributor represents that the Contributor believes its
Contributions are its original creation(s) or it has sufficient rights
to grant the rights to its Contributions conveyed by this License.
2.6. Fair Use
This License is not intended to limit any rights You have under
applicable copyright doctrines of fair use, fair dealing, or other
equivalents.
2.7. Conditions
Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted
in Section 2.1.
3. Responsibilities
-------------------
3.1. Distribution of Source Form
All distribution of Covered Software in Source Code Form, including any
Modifications that You create or to which You contribute, must be under
the terms of this License. You must inform recipients that the Source
Code Form of the Covered Software is governed by the terms of this
License, and how they can obtain a copy of this License. You may not
attempt to alter or restrict the recipients' rights in the Source Code
Form.
3.2. Distribution of Executable Form
If You distribute Covered Software in Executable Form then:
(a) such Covered Software must also be made available in Source Code
Form, as described in Section 3.1, and You must inform recipients of
the Executable Form how they can obtain a copy of such Source Code
Form by reasonable means in a timely manner, at a charge no more
than the cost of distribution to the recipient; and
(b) You may distribute such Executable Form under the terms of this
License, or sublicense it under different terms, provided that the
license for the Executable Form does not attempt to limit or alter
the recipients' rights in the Source Code Form under this License.
3.3. Distribution of a Larger Work
You may create and distribute a Larger Work under terms of Your choice,
provided that You also comply with the requirements of this License for
the Covered Software. If the Larger Work is a combination of Covered
Software with a work governed by one or more Secondary Licenses, and the
Covered Software is not Incompatible With Secondary Licenses, this
License permits You to additionally distribute such Covered Software
under the terms of such Secondary License(s), so that the recipient of
the Larger Work may, at their option, further distribute the Covered
Software under the terms of either this License or such Secondary
License(s).
3.4. Notices
You may not remove or alter the substance of any license notices
(including copyright notices, patent notices, disclaimers of warranty,
or limitations of liability) contained within the Source Code Form of
the Covered Software, except that You may alter any license notices to
the extent required to remedy known factual inaccuracies.
3.5. Application of Additional Terms
You may choose to offer, and to charge a fee for, warranty, support,
indemnity or liability obligations to one or more recipients of Covered
Software. However, You may do so only on Your own behalf, and not on
behalf of any Contributor. You must make it absolutely clear that any
such warranty, support, indemnity, or liability obligation is offered by
You alone, and You hereby agree to indemnify every Contributor for any
liability incurred by such Contributor as a result of warranty, support,
indemnity or liability terms You offer. You may include additional
disclaimers of warranty and limitations of liability specific to any
jurisdiction.
4. Inability to Comply Due to Statute or Regulation
---------------------------------------------------
If it is impossible for You to comply with any of the terms of this
License with respect to some or all of the Covered Software due to
statute, judicial order, or regulation then You must: (a) comply with
the terms of this License to the maximum extent possible; and (b)
describe the limitations and the code they affect. Such description must
be placed in a text file included with all distributions of the Covered
Software under this License. Except to the extent prohibited by statute
or regulation, such description must be sufficiently detailed for a
recipient of ordinary skill to be able to understand it.
5. Termination
--------------
5.1. The rights granted under this License will terminate automatically
if You fail to comply with any of its terms. However, if You become
compliant, then the rights granted under this License from a particular
Contributor are reinstated (a) provisionally, unless and until such
Contributor explicitly and finally terminates Your grants, and (b) on an
ongoing basis, if such Contributor fails to notify You of the
non-compliance by some reasonable means prior to 60 days after You have
come back into compliance. Moreover, Your grants from a particular
Contributor are reinstated on an ongoing basis if such Contributor
notifies You of the non-compliance by some reasonable means, this is the
first time You have received notice of non-compliance with this License
from such Contributor, and You become compliant prior to 30 days after
Your receipt of the notice.
5.2. If You initiate litigation against any entity by asserting a patent
infringement claim (excluding declaratory judgment actions,
counter-claims, and cross-claims) alleging that a Contributor Version
directly or indirectly infringes any patent, then the rights granted to
You by any and all Contributors for the Covered Software under Section
2.1 of this License shall terminate.
5.3. In the event of termination under Sections 5.1 or 5.2 above, all
end user license agreements (excluding distributors and resellers) which
have been validly granted by You or Your distributors under this License
prior to termination shall survive termination.
************************************************************************
* *
* 6. Disclaimer of Warranty *
* ------------------------- *
* *
* Covered Software is provided under this License on an "as is" *
* basis, without warranty of any kind, either expressed, implied, or *
* statutory, including, without limitation, warranties that the *
* Covered Software is free of defects, merchantable, fit for a *
* particular purpose or non-infringing. The entire risk as to the *
* quality and performance of the Covered Software is with You. *
* Should any Covered Software prove defective in any respect, You *
* (not any Contributor) assume the cost of any necessary servicing, *
* repair, or correction. This disclaimer of warranty constitutes an *
* essential part of this License. No use of any Covered Software is *
* authorized under this License except under this disclaimer. *
* *
************************************************************************
************************************************************************
* *
* 7. Limitation of Liability *
* -------------------------- *
* *
* Under no circumstances and under no legal theory, whether tort *
* (including negligence), contract, or otherwise, shall any *
* Contributor, or anyone who distributes Covered Software as *
* permitted above, be liable to You for any direct, indirect, *
* special, incidental, or consequential damages of any character *
* including, without limitation, damages for lost profits, loss of *
* goodwill, work stoppage, computer failure or malfunction, or any *
* and all other commercial damages or losses, even if such party *
* shall have been informed of the possibility of such damages. This *
* limitation of liability shall not apply to liability for death or *
* personal injury resulting from such party's negligence to the *
* extent applicable law prohibits such limitation. Some *
* jurisdictions do not allow the exclusion or limitation of *
* incidental or consequential damages, so this exclusion and *
* limitation may not apply to You. *
* *
************************************************************************
8. Litigation
-------------
Any litigation relating to this License may be brought only in the
courts of a jurisdiction where the defendant maintains its principal
place of business and such litigation shall be governed by laws of that
jurisdiction, without reference to its conflict-of-law provisions.
Nothing in this Section shall prevent a party's ability to bring
cross-claims or counter-claims.
9. Miscellaneous
----------------
This License represents the complete agreement concerning the subject
matter hereof. If any provision of this License is held to be
unenforceable, such provision shall be reformed only to the extent
necessary to make it enforceable. Any law or regulation which provides
that the language of a contract shall be construed against the drafter
shall not be used to construe this License against a Contributor.
10. Versions of the License
---------------------------
10.1. New Versions
Mozilla Foundation is the license steward. Except as provided in Section
10.3, no one other than the license steward has the right to modify or
publish new versions of this License. Each version will be given a
distinguishing version number.
10.2. Effect of New Versions
You may distribute the Covered Software under the terms of the version
of the License under which You originally received the Covered Software,
or under the terms of any subsequent version published by the license
steward.
10.3. Modified Versions
If you create software not governed by this License, and you want to
create a new license for such software, you may create and use a
modified version of this License if you rename the license and remove
any references to the name of the license steward (except to note that
such modified license differs from this License).
10.4. Distributing Source Code Form that is Incompatible With Secondary
Licenses
If You choose to distribute Source Code Form that is Incompatible With
Secondary Licenses under the terms of this version of the License, the
notice described in Exhibit B of this License must be attached.
Exhibit A - Source Code Form License Notice
-------------------------------------------
This Source Code Form is subject to the terms of the Mozilla Public
License, v. 2.0. If a copy of the MPL was not distributed with this
file, You can obtain one at http://mozilla.org/MPL/2.0/.
If it is not possible or desirable to put the notice in a particular
file, then You may include the notice in a location (such as a LICENSE
file in a relevant directory) where a recipient would be likely to look
for such a notice.
You may add additional accurate notices of copyright ownership.
Exhibit B - "Incompatible With Secondary Licenses" Notice
---------------------------------------------------------
This Source Code Form is "Incompatible With Secondary Licenses", as
defined by the Mozilla Public License, v. 2.0.

83
packages/core/package.json
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{
"name": "@budibase/core",
"version": "0.0.32",
"description": "core javascript library for budibase",
"main": "dist/budibase-core.umd.js",
"module": "dist/budibase-core.esm.js",
"files": [
"dist/**",
"!dist/node_modules"
],
"directories": {
"test": "test"
},
"scripts": {
"test": "jest",
"test:watch": "jest --watch",
"build": "rollup -c rollup.config.js"
},
"keywords": [
"budibase"
],
"author": "Michael Shanks",
"license": "MPL-2.0",
"jest": {
"globals": {
"GLOBALS": {
"client": "web"
}
},
"testURL": "http://jest-breaks-if-this-does-not-exist",
"moduleNameMapper": {
"\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga)$": "<rootDir>/internals/mocks/fileMock.js",
"\\.(css|less|sass|scss)$": "identity-obj-proxy"
},
"moduleFileExtensions": [
"js"
],
"moduleDirectories": [
"node_modules"
],
"transform": {
"^.+\\.js$": "babel-jest"
},
"transformIgnorePatterns": [
"/node_modules/(?!svelte).+\\.js$"
]
},
"devDependencies": {
"@babel/cli": "^7.4.4",
"@babel/core": "^7.4.5",
"@babel/plugin-transform-runtime": "^7.4.4",
"@babel/preset-env": "^7.4.5",
"@babel/runtime": "^7.4.5",
"babel-jest": "^23.6.0",
"babel-plugin-transform-es2015-modules-commonjs": "^6.26.2",
"cross-env": "^5.1.4",
"jest": "^24.8.0",
"readable-stream": "^3.1.1",
"regenerator-runtime": "^0.11.1",
"rimraf": "^2.6.2",
"rollup": "^1.12.0",
"rollup-plugin-commonjs": "^10.0.0",
"rollup-plugin-node-builtins": "^2.1.2",
"rollup-plugin-node-globals": "^1.4.0",
"rollup-plugin-node-resolve": "^5.0.0"
},
"dependencies": {
"@nx-js/compiler-util": "^2.0.0",
"bcryptjs": "^2.4.3",
"date-fns": "^1.29.0",
"lodash": "^4.17.13",
"lunr": "^2.3.5",
"nano": "^8.2.2",
"safe-buffer": "^5.1.2",
"shortid": "^2.2.8"
},
"devEngines": {
"node": ">=7.x",
"npm": ">=4.x",
"yarn": ">=0.21.3"
},
"gitHead": "b1f4f90927d9e494e513220ef060af28d2d42455"
}

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packages/core/readme.md
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## Getting Started
Install packages:
`npm install`
Next, run the tests. Install jest, globally:
`npm install -g jest`
And finally, run
`jest`
## Documentation
A work in progress, lives here: https://github.com/Budibase/docs/blob/master/budibase-core.md

153
packages/core/rollup.config.js
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import builtins from "rollup-plugin-node-builtins"
import resolve from "rollup-plugin-node-resolve"
import commonjs from "rollup-plugin-commonjs"
import nodeglobals from "rollup-plugin-node-globals"
const lodash_fp_exports = [
"union",
"reduce",
"isUndefined",
"cloneDeep",
"split",
"some",
"map",
"filter",
"isEmpty",
"countBy",
"includes",
"last",
"find",
"constant",
"take",
"first",
"intersection",
"mapValues",
"isNull",
"has",
"isNumber",
"isString",
"isBoolean",
"isDate",
"isArray",
"isObject",
"clone",
"values",
"keyBy",
"keys",
"orderBy",
"concat",
"reverse",
"difference",
"merge",
"flatten",
"each",
"pull",
"join",
"defaultCase",
"uniqBy",
"every",
"uniqWith",
"isFunction",
"groupBy",
"differenceBy",
"intersectionBy",
"isEqual",
"max",
]
const lodash_exports = [
"toNumber",
"flow",
"isArray",
"join",
"replace",
"trim",
"dropRight",
"takeRight",
"head",
"isUndefined",
"isNull",
"isNaN",
"reduce",
"isEmpty",
"constant",
"tail",
"includes",
"startsWith",
"findIndex",
"isInteger",
"isDate",
"isString",
"split",
"clone",
"keys",
"isFunction",
"merge",
"has",
"isBoolean",
"isNumber",
"isObjectLike",
"assign",
"some",
"each",
"find",
"orderBy",
"union",
"cloneDeep",
]
const globals = {
"lodash/fp": "fp",
lodash: "_",
lunr: "lunr",
"safe-buffer": "safe_buffer",
shortid: "shortid",
"@nx-js/compiler-util": "compiler_util",
}
export default {
input: "src/index.js",
output: [
{
file: "dist/budibase-core.cjs.js",
format: "cjs",
sourcemap: "inline",
},
{
file: "dist/budibase-core.esm.mjs",
format: "esm",
sourcemap: "inline",
},
{
file: "dist/budibase-core.umd.js",
format: "umd",
name: "@budibase/core",
sourcemap: "inline",
globals,
},
],
plugins: [
nodeglobals(),
builtins(),
resolve({
preferBuiltins: true,
}),
commonjs({
namedExports: {
"lodash/fp": lodash_fp_exports,
lodash: lodash_exports,
shortid: ["generate"],
},
}),
],
external: [
"lodash",
"lodash/fp",
"date-fns",
"lunr",
"safe-buffer",
"shortid",
"@nx-js/compiler-util",
"bcryptjs",
],
}

15
packages/core/src/actionsApi/buildBehaviourSource.js
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import { has } from "lodash"
import { ConflictError } from "../common/errors"
export const createBehaviourSources = () => {
const sources = {}
const register = (name, funcsObj) => {
if (has(sources, name)) {
throw new ConflictError(`Source '${name}' already exists`)
}
sources[name] = funcsObj
}
sources.register = register
return sources
}

17
packages/core/src/actionsApi/execute.js
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import { permission } from "../authApi/permissions"
import { apiWrapperSync } from "../common/apiWrapper"
import { events } from "../common/events"
export const executeAction = app => (actionName, options) => {
apiWrapperSync(
app,
events.actionsApi.execute,
permission.executeAction.isAuthorized(actionName),
{ actionName, options },
app.actions[actionName],
options
)
}
export const _executeAction = (behaviourSources, action, options) =>
behaviourSources[action.behaviourSource][action.behaviourName](options)

7
packages/core/src/actionsApi/index.js
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import { executeAction } from "./execute"
export const getActionsApi = app => ({
execute: executeAction(app),
})
export default getActionsApi

103
packages/core/src/actionsApi/initialise.js
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import {
isFunction,
filter,
map,
uniqBy,
keys,
difference,
join,
reduce,
find,
} from "lodash/fp"
import { compileCode } from "../common/compileCode"
import { $ } from "../common"
import { _executeAction } from "./execute"
import { BadRequestError, NotFoundError } from "../common/errors"
export const initialiseActions = (
subscribe,
behaviourSources,
actions,
triggers,
apis
) => {
validateSources(behaviourSources, actions)
subscribeTriggers(subscribe, behaviourSources, actions, triggers, apis)
return createActionsCollection(behaviourSources, actions)
}
const createActionsCollection = (behaviourSources, actions) =>
$(actions, [
reduce((all, a) => {
all[a.name] = opts => _executeAction(behaviourSources, a, opts)
return all
}, {}),
])
const subscribeTriggers = (
subscribe,
behaviourSources,
actions,
triggers,
apis
) => {
const createOptions = (optionsCreator, eventContext) => {
if (!optionsCreator) return {}
const create = compileCode(optionsCreator)
return create({ context: eventContext, apis })
}
const shouldRunTrigger = (trigger, eventContext) => {
if (!trigger.condition) return true
const shouldRun = compileCode(trigger.condition)
return shouldRun({ context: eventContext })
}
for (let trig of triggers) {
subscribe(trig.eventName, async (ev, ctx) => {
if (shouldRunTrigger(trig, ctx)) {
await _executeAction(
behaviourSources,
find(a => a.name === trig.actionName)(actions),
createOptions(trig.optionsCreator, ctx)
)
}
})
}
}
const validateSources = (behaviourSources, actions) => {
const declaredSources = $(actions, [
uniqBy(a => a.behaviourSource),
map(a => a.behaviourSource),
])
const suppliedSources = keys(behaviourSources)
const missingSources = difference(declaredSources, suppliedSources)
if (missingSources.length > 0) {
throw new BadRequestError(
`Declared behaviour sources are not supplied: ${join(
", ",
missingSources
)}`
)
}
const missingBehaviours = $(actions, [
filter(
a => !isFunction(behaviourSources[a.behaviourSource][a.behaviourName])
),
map(a => `Action: ${a.name} : ${a.behaviourSource}.${a.behaviourName}`),
])
if (missingBehaviours.length > 0) {
throw new NotFoundError(
`Missing behaviours: could not find behaviour functions: ${join(
", ",
missingBehaviours
)}`
)
}
}

8
packages/core/src/appInitialise/cloneApp.js
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@ -1,8 +0,0 @@
import { setCleanupFunc } from "../transactions/setCleanupFunc"
export const cloneApp = (app, mergeWith) => {
const newApp = { ...app }
Object.assign(newApp, mergeWith)
setCleanupFunc(newApp)
return newApp
}

27
packages/core/src/appInitialise/eventAggregator.js
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@ -1,27 +0,0 @@
import { has } from "lodash/fp"
const publish = handlers => async (eventName, context = {}) => {
if (!has(eventName)(handlers)) return
for (const handler of handlers[eventName]) {
await handler(eventName, context)
}
}
const subscribe = handlers => (eventName, handler) => {
if (!has(eventName)(handlers)) {
handlers[eventName] = []
}
handlers[eventName].push(handler)
}
export const createEventAggregator = () => {
const handlers = {}
const eventAggregator = {
publish: publish(handlers),
subscribe: subscribe(handlers),
}
return eventAggregator
}
export default createEventAggregator

13
packages/core/src/appInitialise/index.js
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@ -1,13 +0,0 @@
export const setupDatastore = datastore => {
datastore.loadJson = datastore.loadFile
datastore.createJson = datastore.createFile
datastore.updateJson = datastore.updateFile
if (datastore.createEmptyDb) {
delete datastore.createEmptyDb
}
return datastore
}
export { createEventAggregator } from "./eventAggregator"
export default setupDatastore

55
packages/core/src/appInitialise/initialiseData.js
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@ -1,55 +0,0 @@
import { filter } from "lodash/fp"
import { configFolder, appDefinitionFile, $ } from "../common"
import { TRANSACTIONS_FOLDER } from "../transactions/transactionsCommon"
import {
AUTH_FOLDER,
USERS_LIST_FILE,
ACCESS_LEVELS_FILE,
} from "../authApi/authCommon"
import { initialiseRootCollections } from "../collectionApi/initialise"
import { initialiseIndex } from "../indexing/initialiseIndex"
import {
getFlattenedHierarchy,
isGlobalIndex,
isSingleRecord,
} from "../templateApi/hierarchy"
import { _getNew } from "../recordApi/getNew"
import { _save } from "../recordApi/save"
export const initialiseData = async (
datastore,
applicationDefinition,
accessLevels
) => {
if (!(await datastore.exists(appDefinitionFile)))
await datastore.createJson(appDefinitionFile, applicationDefinition)
if (!(await datastore.exists(USERS_LIST_FILE)))
await datastore.createJson(USERS_LIST_FILE, [])
if (!(await datastore.exists(ACCESS_LEVELS_FILE)))
await datastore.createJson(
ACCESS_LEVELS_FILE,
accessLevels ? accessLevels : { version: 0, levels: [] }
)
await initialiseRootSingleRecords(datastore, applicationDefinition.hierarchy)
}
const initialiseRootSingleRecords = async (datastore, hierarchy) => {
const app = {
publish: () => {},
cleanupTransactions: () => {},
datastore,
hierarchy,
}
const flathierarchy = getFlattenedHierarchy(hierarchy)
const singleRecords = $(flathierarchy, [filter(isSingleRecord)])
for (let record of singleRecords) {
const result = _getNew(record, "")
result.key = record.nodeKey()
await _save(app, result)
}
}

53
packages/core/src/authApi/authCommon.js
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@ -1,53 +0,0 @@
import { clone, find, split } from "lodash/fp"
import { joinKey, $ } from "../common"
// 5 minutes
export const tempCodeExpiryLength = 5 * 60 * 1000
export const AUTH_FOLDER = "/.auth"
export const USERS_LIST_FILE = joinKey(AUTH_FOLDER, "users.json")
export const userAuthFile = username =>
joinKey(AUTH_FOLDER, `auth_${username}.json`)
export const USERS_LOCK_FILE = joinKey(AUTH_FOLDER, "users_lock")
export const ACCESS_LEVELS_FILE = joinKey(AUTH_FOLDER, "access_levels.json")
export const ACCESS_LEVELS_LOCK_FILE = joinKey(
AUTH_FOLDER,
"access_levels_lock"
)
export const permissionTypes = {
CREATE_RECORD: "create record",
UPDATE_RECORD: "update record",
READ_RECORD: "read record",
DELETE_RECORD: "delete record",
READ_INDEX: "read index",
MANAGE_INDEX: "manage index",
MANAGE_COLLECTION: "manage collection",
WRITE_TEMPLATES: "write templates",
CREATE_USER: "create user",
SET_PASSWORD: "set password",
CREATE_TEMPORARY_ACCESS: "create temporary access",
ENABLE_DISABLE_USER: "enable or disable user",
WRITE_ACCESS_LEVELS: "write access levels",
LIST_USERS: "list users",
LIST_ACCESS_LEVELS: "list access levels",
EXECUTE_ACTION: "execute action",
SET_USER_ACCESS_LEVELS: "set user access levels",
}
export const getUserByName = (users, name) =>
$(users, [find(u => u.name.toLowerCase() === name.toLowerCase())])
export const stripUserOfSensitiveStuff = user => {
const stripped = clone(user)
delete stripped.tempCode
return stripped
}
export const parseTemporaryCode = fullCode =>
$(fullCode, [
split(":"),
parts => ({
id: parts[1],
code: parts[2],
}),
])

118
packages/core/src/authApi/authenticate.js
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@ -1,118 +0,0 @@
import { find, filter, some, map, flatten } from "lodash/fp"
import { generate } from "shortid"
import { _getUsers } from "./getUsers"
import { getUserByName, userAuthFile, parseTemporaryCode } from "./authCommon"
import { _loadAccessLevels } from "./loadAccessLevels"
import { isNothingOrEmpty, $, apiWrapper, events } from "../common"
import { alwaysAuthorized } from "./permissions"
const dummyHash =
"$argon2i$v=19$m=4096,t=3,p=1$UZRo409UYBGjHJS3CV6Uxw$rU84qUqPeORFzKYmYY0ceBLDaPO+JWSH4PfNiKXfIKk"
export const authenticate = app => async (username, password) =>
apiWrapper(
app,
events.authApi.authenticate,
alwaysAuthorized,
{ username, password },
_authenticate,
app,
username,
password
)
export const _authenticate = async (app, username, password) => {
if (isNothingOrEmpty(username) || isNothingOrEmpty(password)) {
return null
}
const allUsers = await _getUsers(app)
let user = getUserByName(allUsers, username)
const notAUser = "not-a-user"
// continue with non-user - so time to verify remains consistent
// with verification of a valid user
if (!user || !user.enabled) {
user = notAUser
}
let userAuth
try {
userAuth = await app.datastore.loadJson(userAuthFile(username))
} catch (_) {
userAuth = { accessLevels: [], passwordHash: dummyHash }
}
const permissions = await buildUserPermissions(app, user.accessLevels)
const verified = app.crypto.verify(userAuth.passwordHash, password)
if (user === notAUser) {
return null
}
return verified
? {
...user,
permissions,
temp: false,
isUser: true,
}
: null
}
export const authenticateTemporaryAccess = app => async tempAccessCode => {
if (isNothingOrEmpty(tempAccessCode)) {
return null
}
const temp = parseTemporaryCode(tempAccessCode)
let user = $(await _getUsers(app), [
find(u => u.temporaryAccessId === temp.id),
])
const notAUser = "not-a-user"
if (!user || !user.enabled) {
user = notAUser
}
let userAuth
try {
userAuth = await app.datastore.loadJson(userAuthFile(user.name))
} catch (e) {
userAuth = {
temporaryAccessHash: dummyHash,
temporaryAccessExpiryEpoch: (await app.getEpochTime()) + 10000,
}
}
if (userAuth.temporaryAccessExpiryEpoch < (await app.getEpochTime())) {
user = notAUser
}
const tempCode = !temp.code ? generate() : temp.code
const verified = app.crypto.verify(userAuth.temporaryAccessHash, tempCode)
if (user === notAUser) {
return null
}
return verified
? {
...user,
permissions: [],
temp: true,
isUser: true,
}
: null
}
export const buildUserPermissions = async (app, userAccessLevels) => {
const allAccessLevels = await _loadAccessLevels(app)
return $(allAccessLevels.levels, [
filter(l => some(ua => l.name === ua)(userAccessLevels)),
map(l => l.permissions),
flatten,
])
}

70
packages/core/src/authApi/createTemporaryAccess.js
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@ -1,70 +0,0 @@
import { generate } from "shortid"
import {
tempCodeExpiryLength,
USERS_LOCK_FILE,
USERS_LIST_FILE,
userAuthFile,
getUserByName,
} from "./authCommon"
import { getLock, isNolock, releaseLock } from "../common/lock"
import { apiWrapper, events } from "../common"
import { alwaysAuthorized } from "./permissions"
export const createTemporaryAccess = app => async userName =>
apiWrapper(
app,
events.authApi.createTemporaryAccess,
alwaysAuthorized,
{ userName },
_createTemporaryAccess,
app,
userName
)
export const _createTemporaryAccess = async (app, userName) => {
const tempCode = await getTemporaryCode(app)
const lock = await getLock(app, USERS_LOCK_FILE, 1000, 2)
if (isNolock(lock)) {
throw new Error(
"Unable to create temporary access, could not get lock - try again"
)
}
try {
const users = await app.datastore.loadJson(USERS_LIST_FILE)
const user = getUserByName(users, userName)
user.temporaryAccessId = tempCode.temporaryAccessId
await app.datastore.updateJson(USERS_LIST_FILE, users)
} finally {
await releaseLock(app, lock)
}
const userAuth = await app.datastore.loadJson(userAuthFile(userName))
userAuth.temporaryAccessHash = tempCode.temporaryAccessHash
userAuth.temporaryAccessExpiryEpoch = tempCode.temporaryAccessExpiryEpoch
await app.datastore.updateJson(userAuthFile(userName), userAuth)
return tempCode.tempCode
}
export const getTemporaryCode = async app => {
const tempCode = generate() + generate() + generate() + generate()
const tempId = generate()
return {
temporaryAccessHash: app.crypto.hash(tempCode),
temporaryAccessExpiryEpoch:
(await app.getEpochTime()) + tempCodeExpiryLength,
tempCode: `tmp:${tempId}:${tempCode}`,
temporaryAccessId: tempId,
}
}
export const looksLikeTemporaryCode = code => code.startsWith("tmp:")

96
packages/core/src/authApi/createUser.js
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@ -1,96 +0,0 @@
import { join, some } from "lodash/fp"
import { validateUser } from "./validateUser"
import { getNewUserAuth } from "./getNewUser"
import {
getLock,
isNolock,
releaseLock,
apiWrapper,
events,
insensitiveEquals,
isNonEmptyString,
} from "../common"
import {
USERS_LOCK_FILE,
stripUserOfSensitiveStuff,
USERS_LIST_FILE,
userAuthFile,
} from "./authCommon"
import { getTemporaryCode } from "./createTemporaryAccess"
import { isValidPassword } from "./setPassword"
import { permission } from "./permissions"
import { BadRequestError } from "../common/errors"
export const createUser = app => async (user, password = null) =>
apiWrapper(
app,
events.authApi.createUser,
permission.createUser.isAuthorized,
{ user, password },
_createUser,
app,
user,
password
)
export const _createUser = async (app, user, password = null) => {
const lock = await getLock(app, USERS_LOCK_FILE, 1000, 2)
if (isNolock(lock)) {
throw new Error("Unable to create user, could not get lock - try again")
}
const users = await app.datastore.loadJson(USERS_LIST_FILE)
const userErrors = validateUser(app)([...users, user], user)
if (userErrors.length > 0) {
throw new BadRequestError(`User is invalid. ${join("; ")(userErrors.map(e => e.error))}`)
}
const { auth, tempCode, temporaryAccessId } = await getAccess(app, password)
user.tempCode = tempCode
user.temporaryAccessId = temporaryAccessId
if (some(u => insensitiveEquals(u.name, user.name))(users)) {
throw new BadRequestError("User already exists")
}
users.push(stripUserOfSensitiveStuff(user))
await app.datastore.updateJson(USERS_LIST_FILE, users)
try {
await app.datastore.createJson(userAuthFile(user.name), auth)
} catch (_) {
await app.datastore.updateJson(userAuthFile(user.name), auth)
}
await releaseLock(app, lock)
return user
}
const getAccess = async (app, password) => {
const auth = getNewUserAuth(app)()
if (isNonEmptyString(password)) {
if (isValidPassword(password)) {
auth.passwordHash = app.crypto.hash(password)
auth.temporaryAccessHash = ""
auth.temporaryAccessId = ""
auth.temporaryAccessExpiryEpoch = 0
return { auth }
}
throw new BadRequestError("Password does not meet requirements")
} else {
const tempAccess = await getTemporaryCode(app)
auth.temporaryAccessHash = tempAccess.temporaryAccessHash
auth.temporaryAccessExpiryEpoch = tempAccess.temporaryAccessExpiryEpoch
auth.passwordHash = ""
return {
auth,
tempCode: tempAccess.tempCode,
temporaryAccessId: tempAccess.temporaryAccessId,
}
}
}

58
packages/core/src/authApi/enableUser.js
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@ -1,58 +0,0 @@
import { getLock, isNolock, releaseLock } from "../common/lock"
import { USERS_LOCK_FILE, USERS_LIST_FILE, getUserByName } from "./authCommon"
import { apiWrapper, events } from "../common"
import { permission } from "./permissions"
import { NotFoundError } from "../common/errors"
export const enableUser = app => async username =>
apiWrapper(
app,
events.authApi.enableUser,
permission.enableDisableUser.isAuthorized,
{ username },
_enableUser,
app,
username
)
export const disableUser = app => async username =>
apiWrapper(
app,
events.authApi.disableUser,
permission.enableDisableUser.isAuthorized,
{ username },
_disableUser,
app,
username
)
export const _enableUser = async (app, username) =>
await toggleUser(app, username, true)
export const _disableUser = async (app, username) =>
await toggleUser(app, username, false)
const toggleUser = async (app, username, enabled) => {
const lock = await getLock(app, USERS_LOCK_FILE, 1000, 1, 0)
const actionName = enabled ? "enable" : "disable"
if (isNolock(lock)) {
throw new Error(`Could not ${actionName} user - cannot get lock`)
}
try {
const users = await app.datastore.loadJson(USERS_LIST_FILE)
const user = getUserByName(users, username)
if (!user) {
throw new NotFoundError(`Could not find user to ${actionName}`)
}
if (user.enabled === !enabled) {
user.enabled = enabled
await app.datastore.updateJson(USERS_LIST_FILE, users)
}
} finally {
releaseLock(app, lock)
}
}

36
packages/core/src/authApi/generateFullPermissions.js
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@ -1,36 +0,0 @@
import { filter, values, each, keys } from "lodash/fp"
import { permission } from "./permissions"
import {
getFlattenedHierarchy,
isIndex,
isModel,
} from "../templateApi/hierarchy"
import { $ } from "../common"
export const generateFullPermissions = app => {
const allNodes = getFlattenedHierarchy(app.hierarchy)
const accessLevel = { permissions: [] }
const recordNodes = $(allNodes, [filter(isModel)])
for (const n of recordNodes) {
permission.createRecord.add(n.nodeKey(), accessLevel)
permission.updateRecord.add(n.nodeKey(), accessLevel)
permission.deleteRecord.add(n.nodeKey(), accessLevel)
permission.readRecord.add(n.nodeKey(), accessLevel)
}
const indexNodes = $(allNodes, [filter(isIndex)])
for (const n of indexNodes) {
permission.readIndex.add(n.nodeKey(), accessLevel)
}
for (const a of keys(app.actions)) {
permission.executeAction.add(a, accessLevel)
}
$(permission, [values, filter(p => !p.isNode), each(p => p.add(accessLevel))])
return accessLevel.permissions
}

5
packages/core/src/authApi/getNewAccessLevel.js
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@ -1,5 +0,0 @@
export const getNewAccessLevel = () => () => ({
name: "",
permissions: [],
default: false,
})

35
packages/core/src/authApi/getNewUser.js
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@ -1,35 +0,0 @@
import { apiWrapperSync, events } from "../common"
import { permission } from "./permissions"
export const getNewUser = app => () =>
apiWrapperSync(
app,
events.authApi.getNewUser,
permission.createUser.isAuthorized,
{},
_getNewUser,
app
)
export const _getNewUser = () => ({
name: "",
accessLevels: [],
enabled: true,
temporaryAccessId: "",
})
export const getNewUserAuth = app => () =>
apiWrapperSync(
app,
events.authApi.getNewUserAuth,
permission.createUser.isAuthorized,
{},
_getNewUserAuth,
app
)
export const _getNewUserAuth = () => ({
passwordHash: "",
temporaryAccessHash: "",
temporaryAccessExpiryEpoch: 0,
})

19
packages/core/src/authApi/getUsers.js
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@ -1,19 +0,0 @@
import { map } from "lodash/fp"
import { USERS_LIST_FILE, stripUserOfSensitiveStuff } from "./authCommon"
import { $, apiWrapper, events } from "../common"
import { permission } from "./permissions"
export const getUsers = app => async () =>
apiWrapper(
app,
events.authApi.getUsers,
permission.listUsers.isAuthorized,
{},
_getUsers,
app
)
export const _getUsers = async app =>
$(await app.datastore.loadJson(USERS_LIST_FILE), [
map(stripUserOfSensitiveStuff),
])

46
packages/core/src/authApi/index.js
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@ -1,46 +0,0 @@
import { authenticate, authenticateTemporaryAccess } from "./authenticate"
import { createTemporaryAccess } from "./createTemporaryAccess"
import { createUser } from "./createUser"
import { enableUser, disableUser } from "./enableUser"
import { loadAccessLevels } from "./loadAccessLevels"
import { getNewAccessLevel } from "./getNewAccessLevel"
import { getNewUser, getNewUserAuth } from "./getNewUser"
import { getUsers } from "./getUsers"
import { isAuthorized } from "./isAuthorized"
import { saveAccessLevels } from "./saveAccessLevels"
import {
changeMyPassword,
scorePassword,
setPasswordFromTemporaryCode,
isValidPassword,
} from "./setPassword"
import { validateUser } from "./validateUser"
import { validateAccessLevels } from "./validateAccessLevels"
import { generateFullPermissions } from "./generateFullPermissions"
import { setUserAccessLevels } from "./setUserAccessLevels"
export const getAuthApi = app => ({
authenticate: authenticate(app),
authenticateTemporaryAccess: authenticateTemporaryAccess(app),
createTemporaryAccess: createTemporaryAccess(app),
createUser: createUser(app),
loadAccessLevels: loadAccessLevels(app),
enableUser: enableUser(app),
disableUser: disableUser(app),
getNewAccessLevel: getNewAccessLevel(app),
getNewUser: getNewUser(app),
getNewUserAuth: getNewUserAuth(app),
getUsers: getUsers(app),
saveAccessLevels: saveAccessLevels(app),
isAuthorized: isAuthorized(app),
changeMyPassword: changeMyPassword(app),
setPasswordFromTemporaryCode: setPasswordFromTemporaryCode(app),
scorePassword,
isValidPassword: isValidPassword(app),
validateUser: validateUser(app),
validateAccessLevels: validateAccessLevels(app),
generateFullPermissions: () => generateFullPermissions(app),
setUserAccessLevels: setUserAccessLevels(app),
})
export default getAuthApi

44
packages/core/src/authApi/isAuthorized.js
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@ -1,44 +0,0 @@
import { values, includes, some } from "lodash/fp"
import { permissionTypes } from "./authCommon"
import { $, isNothing, apiWrapperSync, events } from "../common"
import { getNodeByKeyOrNodeKey, isNode } from "../templateApi/hierarchy"
import { alwaysAuthorized } from "./permissions"
export const isAuthorized = app => (permissionType, resourceKey) =>
apiWrapperSync(
app,
events.authApi.isAuthorized,
alwaysAuthorized,
{ resourceKey, permissionType },
_isAuthorized,
app,
permissionType,
resourceKey
)
export const _isAuthorized = (app, permissionType, resourceKey) => {
if (!app.user) {
return false
}
const validType = $(permissionTypes, [values, includes(permissionType)])
if (!validType) {
return false
}
const permMatchesResource = userperm => {
const nodeKey = isNothing(resourceKey)
? null
: isNode(app.hierarchy, resourceKey)
? getNodeByKeyOrNodeKey(app.hierarchy, resourceKey).nodeKey()
: resourceKey
return (
userperm.type === permissionType &&
(isNothing(resourceKey) || nodeKey === userperm.nodeKey)
)
}
return $(app.user.permissions, [some(permMatchesResource)])
}

16
packages/core/src/authApi/loadAccessLevels.js
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@ -1,16 +0,0 @@
import { ACCESS_LEVELS_FILE } from "./authCommon"
import { apiWrapper, events } from "../common"
import { permission } from "./permissions"
export const loadAccessLevels = app => async () =>
apiWrapper(
app,
events.authApi.loadAccessLevels,
permission.listAccessLevels.isAuthorized,
{},
_loadAccessLevels,
app
)
export const _loadAccessLevels = async app =>
await app.datastore.loadJson(ACCESS_LEVELS_FILE)

81
packages/core/src/authApi/permissions.js
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@ -1,81 +0,0 @@
import { permissionTypes } from "./authCommon"
import { isAuthorized } from "./isAuthorized"
export const temporaryAccessPermissions = () => [
{ type: permissionTypes.SET_PASSWORD },
]
const nodePermission = type => ({
add: (nodeKey, accessLevel) =>
accessLevel.permissions.push({ type, nodeKey }),
isAuthorized: resourceKey => app => isAuthorized(app)(type, resourceKey),
isNode: true,
get: nodeKey => ({ type, nodeKey }),
})
const staticPermission = type => ({
add: accessLevel => accessLevel.permissions.push({ type }),
isAuthorized: app => isAuthorized(app)(type),
isNode: false,
get: () => ({ type }),
})
const createRecord = nodePermission(permissionTypes.CREATE_RECORD)
const updateRecord = nodePermission(permissionTypes.UPDATE_RECORD)
const deleteRecord = nodePermission(permissionTypes.DELETE_RECORD)
const readRecord = nodePermission(permissionTypes.READ_RECORD)
const writeTemplates = staticPermission(permissionTypes.WRITE_TEMPLATES)
const createUser = staticPermission(permissionTypes.CREATE_USER)
const setPassword = staticPermission(permissionTypes.SET_PASSWORD)
const readIndex = nodePermission(permissionTypes.READ_INDEX)
const manageIndex = staticPermission(permissionTypes.MANAGE_INDEX)
const manageCollection = staticPermission(permissionTypes.MANAGE_COLLECTION)
const createTemporaryAccess = staticPermission(
permissionTypes.CREATE_TEMPORARY_ACCESS
)
const enableDisableUser = staticPermission(permissionTypes.ENABLE_DISABLE_USER)
const writeAccessLevels = staticPermission(permissionTypes.WRITE_ACCESS_LEVELS)
const listUsers = staticPermission(permissionTypes.LIST_USERS)
const listAccessLevels = staticPermission(permissionTypes.LIST_ACCESS_LEVELS)
const setUserAccessLevels = staticPermission(
permissionTypes.SET_USER_ACCESS_LEVELS
)
const executeAction = nodePermission(permissionTypes.EXECUTE_ACTION)
export const alwaysAuthorized = () => true
export const permission = {
createRecord,
updateRecord,
deleteRecord,
readRecord,
writeTemplates,
createUser,
setPassword,
readIndex,
createTemporaryAccess,
enableDisableUser,
writeAccessLevels,
listUsers,
listAccessLevels,
manageIndex,
manageCollection,
executeAction,
setUserAccessLevels,
}

52
packages/core/src/authApi/saveAccessLevels.js
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@ -1,52 +0,0 @@
import { join, map } from "lodash/fp"
import {
getLock,
releaseLock,
$,
isNolock,
apiWrapper,
events,
} from "../common"
import { ACCESS_LEVELS_LOCK_FILE, ACCESS_LEVELS_FILE } from "./authCommon"
import { validateAccessLevels } from "./validateAccessLevels"
import { permission } from "./permissions"
export const saveAccessLevels = app => async accessLevels =>
apiWrapper(
app,
events.authApi.saveAccessLevels,
permission.writeAccessLevels.isAuthorized,
{ accessLevels },
_saveAccessLevels,
app,
accessLevels
)
export const _saveAccessLevels = async (app, accessLevels) => {
const validationErrors = validateAccessLevels(app)(accessLevels.levels)
if (validationErrors.length > 0) {
const errs = $(validationErrors, [map(e => e.error), join(", ")])
throw new Error(`Access Levels Invalid: ${errs}`)
}
const lock = await getLock(app, ACCESS_LEVELS_LOCK_FILE, 2000, 2)
if (isNolock(lock)) {
throw new Error("Could not get lock to save access levels")
}
try {
const existing = await app.datastore.loadJson(ACCESS_LEVELS_FILE)
if (existing.version !== accessLevels.version) {
throw new Error(
"Access levels have already been updated, since you loaded"
)
}
accessLevels.version++
app.datastore.updateJson(ACCESS_LEVELS_FILE, accessLevels)
} finally {
await releaseLock(app, lock)
}
}

160
packages/core/src/authApi/setPassword.js
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@ -1,160 +0,0 @@
import { find } from "lodash/fp"
import { userAuthFile, parseTemporaryCode } from "./authCommon"
import { isSomething, $, apiWrapper, apiWrapperSync, events } from "../common"
import { _getUsers } from "./getUsers"
import { alwaysAuthorized } from "./permissions"
export const isValidPassword = app => password =>
apiWrapperSync(
app,
events.authApi.isValidPassword,
alwaysAuthorized,
{ password },
_isValidPassword,
app,
password
)
export const _isValidPassword = (app, password) =>
scorePassword(password).score > 30
export const changeMyPassword = app => async (currentPw, newpassword) =>
apiWrapper(
app,
events.authApi.changeMyPassword,
alwaysAuthorized,
{ currentPw, newpassword },
_changeMyPassword,
app,
currentPw,
newpassword
)
export const _changeMyPassword = async (app, currentPw, newpassword) => {
const existingAuth = await app.datastore.loadJson(userAuthFile(app.user.name))
if (isSomething(existingAuth.passwordHash)) {
const verified = app.crypto.verify(existingAuth.passwordHash, currentPw)
if (verified) {
await await doSet(app, existingAuth, app.user.name, newpassword)
return true
}
}
return false
}
export const setPasswordFromTemporaryCode = app => async (
tempCode,
newpassword
) =>
apiWrapper(
app,
events.authApi.setPasswordFromTemporaryCode,
alwaysAuthorized,
{ tempCode, newpassword },
_setPasswordFromTemporaryCode,
app,
tempCode,
newpassword
)
export const _setPasswordFromTemporaryCode = async (
app,
tempCode,
newpassword
) => {
const currentTime = await app.getEpochTime()
const temp = parseTemporaryCode(tempCode)
const user = $(await _getUsers(app), [
find(u => u.temporaryAccessId === temp.id),
])
if (!user) {
return false
}
const existingAuth = await app.datastore.loadJson(userAuthFile(user.name))
if (
isSomething(existingAuth.temporaryAccessHash) &&
existingAuth.temporaryAccessExpiryEpoch > currentTime
) {
const verified = app.crypto.verify(
existingAuth.temporaryAccessHash,
temp.code
)
if (verified) {
await doSet(app, existingAuth, user.name, newpassword)
return true
}
}
return false
}
const doSet = async (app, auth, username, newpassword) => {
auth.temporaryAccessHash = ""
auth.temporaryAccessExpiryEpoch = 0
auth.passwordHash = app.crypto.hash(newpassword)
await app.datastore.updateJson(userAuthFile(username), auth)
}
export const scorePassword = app => password =>
apiWrapperSync(
app,
events.authApi.scorePassword,
alwaysAuthorized,
{ password },
_scorePassword,
password
)
export const _scorePassword = password => {
// from https://stackoverflow.com/questions/948172/password-strength-meter
// thank you https://stackoverflow.com/users/46617/tm-lv
let score = 0
if (!password) {
return score
}
// award every unique letter until 5 repetitions
const letters = new Object()
for (let i = 0; i < password.length; i++) {
letters[password[i]] = (letters[password[i]] || 0) + 1
score += 5.0 / letters[password[i]]
}
// bonus points for mixing it up
const variations = {
digits: /\d/.test(password),
lower: /[a-z]/.test(password),
upper: /[A-Z]/.test(password),
nonWords: /\W/.test(password),
}
let variationCount = 0
for (const check in variations) {
variationCount += variations[check] == true ? 1 : 0
}
score += (variationCount - 1) * 10
const strengthText =
score > 80
? "strong"
: score > 60
? "good"
: score >= 30
? "weak"
: "very weak"
return {
score: parseInt(score),
strengthText,
}
}

60
packages/core/src/authApi/setUserAccessLevels.js
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@ -1,60 +0,0 @@
import { difference, map, join } from "lodash/fp"
import {
getLock,
isNolock,
releaseLock,
$,
apiWrapper,
events,
} from "../common"
import {
USERS_LOCK_FILE,
ACCESS_LEVELS_FILE,
getUserByName,
USERS_LIST_FILE,
} from "./authCommon"
import { permission } from "./permissions"
import { NotFoundError } from "../common/errors"
export const setUserAccessLevels = app => async (userName, accessLevels) =>
apiWrapper(
app,
events.authApi.setUserAccessLevels,
permission.setUserAccessLevels.isAuthorized,
{ userName, accessLevels },
_setUserAccessLevels,
app,
userName,
accessLevels
)
export const _setUserAccessLevels = async (app, username, accessLevels) => {
const lock = await getLock(app, USERS_LOCK_FILE, 1000, 1, 0)
const actualAccessLevels = $(
await app.datastore.loadJson(ACCESS_LEVELS_FILE),
[l => l.levels, map(l => l.name)]
)
const missing = difference(accessLevels)(actualAccessLevels)
if (missing.length > 0) {
throw new Error(`Invalid access levels supplied: ${join(", ", missing)}`)
}
if (isNolock(lock)) {
throw new Error("Could set user access levels cannot get lock")
}
try {
const users = await app.datastore.loadJson(USERS_LIST_FILE)
const user = getUserByName(users, username)
if (!user) {
throw new NotFoundError(`Could not find user with ${username}`)
}
user.accessLevels = accessLevels
await app.datastore.updateJson(USERS_LIST_FILE, users)
} finally {
releaseLock(app, lock)
}
}

93
packages/core/src/authApi/validateAccessLevels.js
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@ -1,93 +0,0 @@
import {
values,
includes,
map,
concat,
isEmpty,
uniqWith,
some,
flatten,
filter,
} from "lodash/fp"
import { applyRuleSet, makerule } from "../common/validationCommon"
import { permissionTypes } from "./authCommon"
import {
$,
isSomething,
insensitiveEquals,
isNonEmptyString,
apiWrapperSync,
events,
} from "../common"
import { getNode } from "../templateApi/hierarchy"
import { alwaysAuthorized } from "./permissions"
const isAllowedType = t => $(permissionTypes, [values, includes(t)])
const isModelOrIndexType = t =>
some(p => p === t)([
permissionTypes.CREATE_RECORD,
permissionTypes.UPDATE_RECORD,
permissionTypes.DELETE_RECORD,
permissionTypes.READ_RECORD,
permissionTypes.READ_INDEX,
permissionTypes.EXECUTE_ACTION,
])
const permissionRules = app => [
makerule("type", "type must be one of allowed types", p =>
isAllowedType(p.type)
),
makerule(
"nodeKey",
"record and index permissions must include a valid nodeKey",
p =>
!isModelOrIndexType(p.type) ||
isSomething(getNode(app.hierarchy, p.nodeKey))
),
]
const applyPermissionRules = app => applyRuleSet(permissionRules(app))
const accessLevelRules = allLevels => [
makerule("name", "name must be set", l => isNonEmptyString(l.name)),
makerule(
"name",
"access level names must be unique",
l =>
isEmpty(l.name) ||
filter(a => insensitiveEquals(l.name, a.name))(allLevels).length === 1
),
]
const applyLevelRules = allLevels => applyRuleSet(accessLevelRules(allLevels))
export const validateAccessLevel = app => (allLevels, level) => {
const errs = $(level.permissions, [
map(applyPermissionRules(app)),
flatten,
concat(applyLevelRules(allLevels)(level)),
])
return errs
}
export const validateAccessLevels = app => allLevels =>
apiWrapperSync(
app,
events.authApi.validateAccessLevels,
alwaysAuthorized,
{ allLevels },
_validateAccessLevels,
app,
allLevels
)
export const _validateAccessLevels = (app, allLevels) =>
$(allLevels, [
map(l => validateAccessLevel(app)(allLevels, l)),
flatten,
uniqWith(
(x, y) => x.field === y.field && x.item === y.item && x.error === y.error
),
])

51
packages/core/src/authApi/validateUser.js
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@ -1,51 +0,0 @@
import { map, uniqWith, flatten, filter } from "lodash/fp"
import { applyRuleSet, makerule } from "../common/validationCommon"
import {
$,
insensitiveEquals,
apiWrapper,
events,
isNonEmptyString,
all,
} from "../common"
import { alwaysAuthorized } from "./permissions"
const userRules = allUsers => [
makerule("name", "username must be set", u => isNonEmptyString(u.name)),
makerule(
"accessLevels",
"user must have at least one access level",
u => u.accessLevels.length > 0
),
makerule(
"name",
"username must be unique",
u => filter(u2 => insensitiveEquals(u2.name, u.name))(allUsers).length === 1
),
makerule("accessLevels", "access levels must only contain stings", u =>
all(isNonEmptyString)(u.accessLevels)
),
]
export const validateUser = () => (allusers, user) =>
applyRuleSet(userRules(allusers))(user)
export const validateUsers = app => allUsers =>
apiWrapper(
app,
events.authApi.validateUsers,
alwaysAuthorized,
{ allUsers },
_validateUsers,
app,
allUsers
)
export const _validateUsers = (app, allUsers) =>
$(allUsers, [
map(l => validateUser(app)(allUsers, l)),
flatten,
uniqWith(
(x, y) => x.field === y.field && x.item === y.item && x.error === y.error
),
])

57
packages/core/src/collectionApi/delete.js
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@ -1,57 +0,0 @@
import { safeKey, apiWrapper, events, joinKey } from "../common"
import { _deleteRecord } from "../recordApi/delete"
import { getAllIdsIterator } from "../indexing/allIds"
import { permission } from "../authApi/permissions"
import { getCollectionDir } from "../recordApi/recordInfo"
import { ensureCollectionIsInitialised } from "./initialise"
import { getNodeForCollectionPath } from "../templateApi/hierarchy"
export const deleteCollection = (app, disableCleanup = false) => async key =>
apiWrapper(
app,
events.collectionApi.delete,
permission.manageCollection.isAuthorized,
{ key },
_deleteCollection,
app,
key,
disableCleanup
)
/*
const recordNode = getCollectionNode(app.hierarchy, key);
*/
export const _deleteCollection = async (app, key, disableCleanup) => {
key = safeKey(key)
const collectionDir = getCollectionDir(app.hierarchy, key)
await deleteRecords(app, key)
await deleteCollectionFolder(app, key, collectionDir)
if (!disableCleanup) {
await app.cleanupTransactions()
}
}
const deleteCollectionFolder = async (app, key, dir) => {
await app.datastore.deleteFolder(dir)
await ensureCollectionIsInitialised(
app.datastore,
getNodeForCollectionPath(app.hierarchy)(key),
dir)
}
const deleteRecords = async (app, key) => {
const iterate = await getAllIdsIterator(app)(key)
let ids = await iterate()
while (!ids.done) {
if (ids.result.collectionKey === key) {
for (const id of ids.result.ids) {
await _deleteRecord(app, joinKey(key, id), true)
}
}
ids = await iterate()
}
}

20
packages/core/src/collectionApi/getAllowedRecordTypes.js
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@ -1,20 +0,0 @@
import { getNodeForCollectionPath } from "../templateApi/hierarchy"
import { isNothing, safeKey, apiWrapperSync, events } from "../common"
import { alwaysAuthorized } from "../authApi/permissions"
export const getAllowedRecordTypes = app => key =>
apiWrapperSync(
app,
events.collectionApi.getAllowedRecordTypes,
alwaysAuthorized,
{ key },
_getAllowedRecordTypes,
app,
key
)
const _getAllowedRecordTypes = (app, key) => {
key = safeKey(key)
const node = getNodeForCollectionPath(app.hierarchy)(key)
return isNothing(node) ? [] : [node.name]
}

11
packages/core/src/collectionApi/index.js
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@ -1,11 +0,0 @@
import { getAllIdsIterator } from "../indexing/allIds"
import { getAllowedRecordTypes } from "./getAllowedRecordTypes"
import { deleteCollection } from "./delete"
export const getCollectionApi = app => ({
getAllowedRecordTypes: getAllowedRecordTypes(app),
getAllIdsIterator: getAllIdsIterator(app),
delete: deleteCollection(app),
})
export default getCollectionApi

48
packages/core/src/collectionApi/initialise.js
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@ -1,48 +0,0 @@
import { filter } from "lodash/fp"
import {
getFlattenedHierarchy,
isCollectionRecord,
isRoot,
} from "../templateApi/hierarchy"
import { $, allTrue, joinKey } from "../common"
export const ensureCollectionIsInitialised = async (datastore, node, dir) => {
if (!(await datastore.exists(dir))) {
await datastore.createFolder(dir)
await datastore.createFolder(joinKey(dir, node.nodeId))
}
}
export const initialiseRootCollections = async (datastore, hierarchy) => {
const rootCollectionRecord = allTrue(
n => isRoot(n.parent()),
isCollectionRecord
)
const flathierarchy = getFlattenedHierarchy(hierarchy)
const collectionRecords = $(flathierarchy, [filter(rootCollectionRecord)])
for (const col of collectionRecords) {
await ensureCollectionIsInitialised(
datastore,
col,
col.collectionPathRegx()
)
}
}
export const initialiseChildCollections = async (app, recordInfo) => {
const childCollectionRecords = $(recordInfo.recordNode, [
n => n.children,
filter(isCollectionRecord),
])
for (const child of childCollectionRecords) {
await ensureCollectionIsInitialised(
app.datastore,
child,
recordInfo.child(child.collectionName)
)
}
}

128
packages/core/src/common/apiWrapper.js
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@ -1,128 +0,0 @@
import { cloneDeep, isUndefined } from "lodash/fp"
import { generate } from "shortid"
import { UnauthorisedError } from "./errors"
export const apiWrapper = async (
app,
eventNamespace,
isAuthorized,
eventContext,
func,
...params
) => {
pushCallStack(app, eventNamespace)
if (!isAuthorized(app)) {
handleNotAuthorized(app, eventContext, eventNamespace)
return
}
const startDate = Date.now()
const elapsed = () => Date.now() - startDate
try {
await app.publish(eventNamespace.onBegin, eventContext)
const result = await func(...params)
await publishComplete(app, eventContext, eventNamespace, elapsed, result)
return result
} catch (error) {
await publishError(app, eventContext, eventNamespace, elapsed, error)
throw error
}
}
export const apiWrapperSync = (
app,
eventNamespace,
isAuthorized,
eventContext,
func,
...params
) => {
pushCallStack(app, eventNamespace)
if (!isAuthorized(app)) {
handleNotAuthorized(app, eventContext, eventNamespace)
return
}
const startDate = Date.now()
const elapsed = () => Date.now() - startDate
try {
app.publish(eventNamespace.onBegin, eventContext)
const result = func(...params)
publishComplete(app, eventContext, eventNamespace, elapsed, result)
return result
} catch (error) {
publishError(app, eventContext, eventNamespace, elapsed, error)
throw error
}
}
const handleNotAuthorized = (app, eventContext, eventNamespace) => {
const err = new UnauthorisedError(`Unauthorized: ${eventNamespace}`)
publishError(app, eventContext, eventNamespace, () => 0, err)
throw err
}
const pushCallStack = (app, eventNamespace, seedCallId) => {
const callId = generate()
const createCallStack = () => ({
seedCallId: !isUndefined(seedCallId) ? seedCallId : callId,
threadCallId: callId,
stack: [],
})
if (isUndefined(app.calls)) {
app.calls = createCallStack()
}
app.calls.stack.push({
namespace: eventNamespace,
callId,
})
}
const popCallStack = app => {
app.calls.stack.pop()
if (app.calls.stack.length === 0) {
delete app.calls
}
}
const publishError = async (
app,
eventContext,
eventNamespace,
elapsed,
err
) => {
const ctx = cloneDeep(eventContext)
ctx.error = err
ctx.elapsed = elapsed()
await app.publish(eventNamespace.onError, ctx)
popCallStack(app)
}
const publishComplete = async (
app,
eventContext,
eventNamespace,
elapsed,
result
) => {
const endcontext = cloneDeep(eventContext)
endcontext.result = result
endcontext.elapsed = elapsed()
await app.publish(eventNamespace.onComplete, endcontext)
popCallStack(app)
return result
}
export default apiWrapper

26
packages/core/src/common/compileCode.js
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@ -1,26 +0,0 @@
import { compileCode as cCode } from "@nx-js/compiler-util"
import { includes } from "lodash/fp"
export const compileCode = code => {
let func
let safeCode
if (includes("return ")(code)) {
safeCode = code
} else {
let trimmed = code.trim()
trimmed = trimmed.endsWith(";")
? trimmed.substring(0, trimmed.length - 1)
: trimmed
safeCode = `return (${trimmed})`
}
try {
func = cCode(safeCode)
} catch (e) {
e.message = `Error compiling code : ${code} : ${e.message}`
throw e
}
return func
}

34
packages/core/src/common/errors.js
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@ -1,34 +0,0 @@
export class BadRequestError extends Error {
constructor(message) {
super(message)
this.httpStatusCode = 400
}
}
export class UnauthorisedError extends Error {
constructor(message) {
super(message)
this.httpStatusCode = 401
}
}
export class ForbiddenError extends Error {
constructor(message) {
super(message)
this.httpStatusCode = 403
}
}
export class NotFoundError extends Error {
constructor(message) {
super(message)
this.httpStatusCode = 404
}
}
export class ConflictError extends Error {
constructor(message) {
super(message)
this.httpStatusCode = 409
}
}

74
packages/core/src/common/events.js
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@ -1,74 +0,0 @@
import { union, reduce } from "lodash/fp"
const commonPlus = extra => union(["onBegin", "onComplete", "onError"])(extra)
const common = () => commonPlus([])
const _events = {
recordApi: {
save: commonPlus(["onInvalid", "onRecordUpdated", "onRecordCreated"]),
delete: common(),
getContext: common(),
getNew: common(),
load: common(),
validate: common(),
uploadFile: common(),
downloadFile: common(),
},
authApi: {
authenticate: common(),
authenticateTemporaryAccess: common(),
createTemporaryAccess: common(),
createUser: common(),
enableUser: common(),
disableUser: common(),
loadAccessLevels: common(),
getNewAccessLevel: common(),
getNewUser: common(),
getNewUserAuth: common(),
getUsers: common(),
saveAccessLevels: common(),
isAuthorized: common(),
changeMyPassword: common(),
setPasswordFromTemporaryCode: common(),
scorePassword: common(),
isValidPassword: common(),
validateUser: common(),
validateAccessLevels: common(),
setUserAccessLevels: common(),
},
templateApi: {
saveApplicationHierarchy: common(),
saveActionsAndTriggers: common(),
},
actionsApi: {
execute: common(),
},
}
const _eventsList = []
const makeEvent = (area, method, name) => `${area}:${method}:${name}`
for (const areaKey in _events) {
for (const methodKey in _events[areaKey]) {
_events[areaKey][methodKey] = reduce((obj, s) => {
obj[s] = makeEvent(areaKey, methodKey, s)
return obj
}, {})(_events[areaKey][methodKey])
}
}
for (const areaKey in _events) {
for (const methodKey in _events[areaKey]) {
for (const name in _events[areaKey][methodKey]) {
_eventsList.push(_events[areaKey][methodKey][name])
}
}
}
export const events = _events
export const eventsList = _eventsList
export default { events: _events, eventsList: _eventsList }

317
packages/core/src/common/index.js
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@ -1,317 +0,0 @@
import {
head,
tail,
findIndex,
startsWith,
dropRight,
flow,
takeRight,
trim,
replace,
} from "lodash"
import {
some,
reduce,
isEmpty,
isArray,
join,
isString,
isInteger,
isDate,
toNumber,
isUndefined,
isNaN,
isNull,
constant,
split,
includes,
filter,
} from "lodash/fp"
import { events, eventsList } from "./events"
import { apiWrapper } from "./apiWrapper"
import { getLock, NO_LOCK, isNolock } from "./lock"
import crypto from "./nodeCrypto"
// this is the combinator function
export const $$ = (...funcs) => arg => flow(funcs)(arg)
// this is the pipe function
export const $ = (arg, funcs) => $$(...funcs)(arg)
export const keySep = "/"
const trimKeySep = str => trim(str, keySep)
const splitByKeySep = str => split(keySep)(str)
export const safeKey = key =>
replace(`${keySep}${trimKeySep(key)}`, `${keySep}${keySep}`, keySep)
export const joinKey = (...strs) => {
const paramsOrArray = (strs.length === 1) & isArray(strs[0]) ? strs[0] : strs
return $(paramsOrArray, [
filter(s => !isUndefined(s) && !isNull(s) && s.toString().length > 0),
join(keySep),
safeKey,
])
}
export const splitKey = $$(trimKeySep, splitByKeySep)
export const getDirFomKey = $$(splitKey, dropRight, p => joinKey(...p))
export const getFileFromKey = $$(splitKey, takeRight, head)
export const configFolder = `${keySep}.config`
export const fieldDefinitions = joinKey(configFolder, "fields.json")
export const templateDefinitions = joinKey(configFolder, "templates.json")
export const appDefinitionFile = joinKey(configFolder, "appDefinition.json")
export const dirIndex = folderPath =>
joinKey(configFolder, "dir", ...splitKey(folderPath), "dir.idx")
export const getIndexKeyFromFileKey = $$(getDirFomKey, dirIndex)
export const ifExists = (val, exists, notExists) =>
isUndefined(val)
? isUndefined(notExists)
? (() => {})()
: notExists()
: exists()
export const getOrDefault = (val, defaultVal) =>
ifExists(
val,
() => val,
() => defaultVal
)
export const not = func => val => !func(val)
export const isDefined = not(isUndefined)
export const isNonNull = not(isNull)
export const isNotNaN = not(isNaN)
export const allTrue = (...funcArgs) => val =>
reduce(
(result, conditionFunc) =>
(isNull(result) || result == true) && conditionFunc(val),
null
)(funcArgs)
export const anyTrue = (...funcArgs) => val =>
reduce(
(result, conditionFunc) => result == true || conditionFunc(val),
null
)(funcArgs)
export const insensitiveEquals = (str1, str2) =>
str1.trim().toLowerCase() === str2.trim().toLowerCase()
export const isSomething = allTrue(isDefined, isNonNull, isNotNaN)
export const isNothing = not(isSomething)
export const isNothingOrEmpty = v => isNothing(v) || isEmpty(v)
export const somethingOrGetDefault = getDefaultFunc => val =>
isSomething(val) ? val : getDefaultFunc()
export const somethingOrDefault = (val, defaultVal) =>
somethingOrGetDefault(constant(defaultVal))(val)
export const mapIfSomethingOrDefault = (mapFunc, defaultVal) => val =>
isSomething(val) ? mapFunc(val) : defaultVal
export const mapIfSomethingOrBlank = mapFunc =>
mapIfSomethingOrDefault(mapFunc, "")
export const none = predicate => collection => !some(predicate)(collection)
export const all = predicate => collection =>
none(v => !predicate(v))(collection)
export const isNotEmpty = ob => !isEmpty(ob)
export const isAsync = fn => fn.constructor.name === "AsyncFunction"
export const isNonEmptyArray = allTrue(isArray, isNotEmpty)
export const isNonEmptyString = allTrue(isString, isNotEmpty)
export const tryOr = failFunc => (func, ...args) => {
try {
return func.apply(null, ...args)
} catch (_) {
return failFunc()
}
}
export const tryAwaitOr = failFunc => async (func, ...args) => {
try {
return await func.apply(null, ...args)
} catch (_) {
return await failFunc()
}
}
export const defineError = (func, errorPrefix) => {
try {
return func()
} catch (err) {
err.message = `${errorPrefix} : ${err.message}`
throw err
}
}
export const tryOrIgnore = tryOr(() => {})
export const tryAwaitOrIgnore = tryAwaitOr(async () => {})
export const causesException = func => {
try {
func()
return false
} catch (e) {
return true
}
}
export const executesWithoutException = func => !causesException(func)
export const handleErrorWith = returnValInError =>
tryOr(constant(returnValInError))
export const handleErrorWithUndefined = handleErrorWith(undefined)
export const switchCase = (...cases) => value => {
const nextCase = () => head(cases)[0](value)
const nextResult = () => head(cases)[1](value)
if (isEmpty(cases)) return // undefined
if (nextCase() === true) return nextResult()
return switchCase(...tail(cases))(value)
}
export const isValue = val1 => val2 => val1 === val2
export const isOneOf = (...vals) => val => includes(val)(vals)
export const defaultCase = constant(true)
export const memberMatches = (member, match) => obj => match(obj[member])
export const StartsWith = searchFor => searchIn =>
startsWith(searchIn, searchFor)
export const contains = val => array => findIndex(array, v => v === val) > -1
export const getHashCode = s => {
let hash = 0
let i
let char
let l
if (s.length == 0) return hash
for (i = 0, l = s.length; i < l; i++) {
char = s.charCodeAt(i)
hash = (hash << 5) - hash + char
hash |= 0 // Convert to 32bit integer
}
// converting to string, but dont want a "-" prefixed
if (hash < 0) {
return `n${(hash * -1).toString()}`
}
return hash.toString()
}
// thanks to https://blog.grossman.io/how-to-write-async-await-without-try-catch-blocks-in-javascript/
export const awEx = async promise => {
try {
const result = await promise
return [undefined, result]
} catch (error) {
return [error, undefined]
}
}
export const isSafeInteger = n =>
isInteger(n) &&
n <= Number.MAX_SAFE_INTEGER &&
n >= 0 - Number.MAX_SAFE_INTEGER
export const toDateOrNull = s =>
isNull(s) ? null : isDate(s) ? s : new Date(s)
export const toBoolOrNull = s => (isNull(s) ? null : s === "true" || s === true)
export const toNumberOrNull = s => (isNull(s) ? null : toNumber(s))
export const isArrayOfString = opts => isArray(opts) && all(isString)(opts)
export const pushAll = (target, items) => {
for (let i of items) target.push(i)
}
export const pause = async duration =>
new Promise(res => setTimeout(res, duration))
export const retry = async (fn, retries, delay, ...args) => {
try {
return await fn(...args)
} catch (err) {
if (retries > 1) {
return await pause(delay).then(
async () => await retry(fn, retries - 1, delay, ...args)
)
}
throw err
}
}
export { events } from "./events"
export { apiWrapper, apiWrapperSync } from "./apiWrapper"
export { getLock, NO_LOCK, releaseLock, extendLock, isNolock } from "./lock"
export { crypto }
export default {
ifExists,
getOrDefault,
isDefined,
isNonNull,
isNotNaN,
allTrue,
isSomething,
mapIfSomethingOrDefault,
mapIfSomethingOrBlank,
configFolder,
fieldDefinitions,
isNothing,
not,
switchCase,
defaultCase,
StartsWith,
contains,
templateDefinitions,
handleErrorWith,
handleErrorWithUndefined,
tryOr,
tryOrIgnore,
tryAwaitOr,
tryAwaitOrIgnore,
dirIndex,
keySep,
$,
$$,
getDirFomKey,
getFileFromKey,
splitKey,
somethingOrDefault,
getIndexKeyFromFileKey,
joinKey,
somethingOrGetDefault,
appDefinitionFile,
isValue,
all,
isOneOf,
memberMatches,
defineError,
anyTrue,
isNonEmptyArray,
causesException,
executesWithoutException,
none,
getHashCode,
awEx,
apiWrapper,
events,
eventsList,
isNothingOrEmpty,
isSafeInteger,
toNumber,
toDate: toDateOrNull,
toBool: toBoolOrNull,
isArrayOfString,
getLock,
NO_LOCK,
isNolock,
insensitiveEquals,
pause,
retry,
pushAll,
}

109
packages/core/src/common/lock.js
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@ -1,109 +0,0 @@
import { split } from "lodash/fp"
import { $ } from "./index"
const lockOverlapMilliseconds = 10
export const getLock = async (
app,
lockFile,
timeoutMilliseconds,
maxLockRetries,
retryCount = 0
) => {
try {
const timeout = (await app.getEpochTime()) + timeoutMilliseconds
const lock = {
timeout,
key: lockFile,
totalTimeout: timeoutMilliseconds,
}
await app.datastore.createFile(
lockFile,
getLockFileContent(lock.totalTimeout, lock.timeout)
)
return lock
} catch (e) {
if (retryCount == maxLockRetries) {
return NO_LOCK
}
const lock = parseLockFileContent(
lockFile,
await app.datastore.loadFile(lockFile)
)
const currentEpochTime = await app.getEpochTime()
if (currentEpochTime < lock.timeout) {
return NO_LOCK
}
try {
await app.datastore.deleteFile(lockFile)
} catch (_) {
//empty
}
await sleepForRetry()
return await getLock(
app,
lockFile,
timeoutMilliseconds,
maxLockRetries,
retryCount + 1
)
}
}
export const getLockFileContent = (totalTimeout, epochTime) =>
`${totalTimeout}:${epochTime.toString()}`
const parseLockFileContent = (key, content) =>
$(content, [
split(":"),
parts => ({
totalTimeout: new Number(parts[0]),
timeout: new Number(parts[1]),
key,
}),
])
export const releaseLock = async (app, lock) => {
const currentEpochTime = await app.getEpochTime()
// only release if not timedout
if (currentEpochTime < lock.timeout - lockOverlapMilliseconds) {
try {
await app.datastore.deleteFile(lock.key)
} catch (_) {
//empty
}
}
}
export const extendLock = async (app, lock) => {
const currentEpochTime = await app.getEpochTime()
// only release if not timedout
if (currentEpochTime < lock.timeout - lockOverlapMilliseconds) {
try {
lock.timeout = currentEpochTime + lock.timeoutMilliseconds
await app.datastore.updateFile(
lock.key,
getLockFileContent(lock.totalTimeout, lock.timeout)
)
return lock
} catch (_) {
//empty
}
}
return NO_LOCK
}
export const NO_LOCK = "no lock"
export const isNolock = id => id === NO_LOCK
const sleepForRetry = () =>
new Promise(resolve => setTimeout(resolve, lockOverlapMilliseconds))

14
packages/core/src/common/nodeCrypto.js
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@ -1,14 +0,0 @@
import bcrypt from "bcryptjs"
function hash(password) {
return bcrypt.hashSync(password, 10)
}
function verify(hash, password) {
return bcrypt.compareSync(password, hash)
}
export default {
hash,
verify,
}

14
packages/core/src/common/validationCommon.js
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import { filter, map } from "lodash/fp"
import { $, isSomething } from "./index"
export const stringNotEmpty = s => isSomething(s) && s.trim().length > 0
export const makerule = (field, error, isValid) => ({ field, error, isValid })
export const validationError = (rule, item) => ({ ...rule, item })
export const applyRuleSet = ruleSet => itemToValidate =>
$(ruleSet, [map(applyRule(itemToValidate)), filter(isSomething)])
export const applyRule = itemTovalidate => rule =>
rule.isValid(itemTovalidate) ? null : validationError(rule, itemTovalidate)

112
packages/core/src/index.js
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@ -1,112 +0,0 @@
import getRecordApi from "./recordApi"
import getCollectionApi from "./collectionApi"
import getIndexApi from "./indexApi"
import getTemplateApi from "./templateApi"
import getAuthApi from "./authApi"
import getActionsApi from "./actionsApi"
import { setupDatastore, createEventAggregator } from "./appInitialise"
import { initialiseActions } from "./actionsApi/initialise"
import { isSomething, crypto } from "./common"
import { setCleanupFunc } from "./transactions/setCleanupFunc"
import { generateFullPermissions } from "./authApi/generateFullPermissions"
import { getApplicationDefinition } from "./templateApi/getApplicationDefinition"
import common from "./common"
import { getBehaviourSources } from "./templateApi/getBehaviourSources"
import hierarchy from "./templateApi/hierarchy"
export const getAppApis = async (
store,
behaviourSources = null,
cleanupTransactions = null,
getEpochTime = null,
crypto = null,
appDefinition = null
) => {
store = setupDatastore(store)
if (!appDefinition) appDefinition = await getApplicationDefinition(store)()
if (!behaviourSources) behaviourSources = await getBehaviourSources(store)
const eventAggregator = createEventAggregator()
const app = {
datastore: store,
crypto,
publish: eventAggregator.publish,
hierarchy: appDefinition.hierarchy,
actions: appDefinition.actions,
}
const templateApi = getTemplateApi(app)
setCleanupFunc(app, cleanupTransactions)
app.getEpochTime = isSomething(getEpochTime)
? getEpochTime
: async () => new Date().getTime()
const recordApi = getRecordApi(app)
const collectionApi = getCollectionApi(app)
const indexApi = getIndexApi(app)
const authApi = getAuthApi(app)
const actionsApi = getActionsApi(app)
const authenticateAs = async (username, password) => {
app.user = await authApi.authenticate(username, password)
}
const withFullAccess = () => userWithFullAccess(app)
const asUser = user => {
app.user = user
}
let apis = {
recordApi,
templateApi,
collectionApi,
indexApi,
authApi,
actionsApi,
subscribe: eventAggregator.subscribe,
authenticateAs,
withFullAccess,
asUser,
}
apis.actions = initialiseActions(
eventAggregator.subscribe,
behaviourSources,
appDefinition.actions,
appDefinition.triggers,
apis
)
return apis
}
export const userWithFullAccess = app => {
app.user = {
name: "app",
permissions: generateFullPermissions(app),
isUser: false,
temp: false,
}
return app.user
}
export { events, eventsList } from "./common/events"
export { getTemplateApi } from "./templateApi"
export { getRecordApi } from "./recordApi"
export { getCollectionApi } from "./collectionApi"
export { getAuthApi } from "./authApi"
export { getIndexApi } from "./indexApi"
export { setupDatastore } from "./appInitialise"
export { getActionsApi } from "./actionsApi"
export { initialiseData } from "./appInitialise/initialiseData"
export { hierarchy }
export { common }
export { crypto }
export default getAppApis

180
packages/core/src/indexApi/aggregates.js
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@ -1,180 +0,0 @@
import { has, isNumber, isUndefined } from "lodash/fp"
import { compileCode } from "../common/compileCode"
import { safeKey, apiWrapper, events, isNonEmptyString } from "../common"
import { iterateIndex } from "../indexing/read"
import {
getUnshardedIndexDataKey,
getShardKeysInRange,
} from "../indexing/sharding"
import {
getExactNodeForKey,
isIndex,
isShardedIndex,
} from "../templateApi/hierarchy"
import { CONTINUE_READING_RECORDS } from "../indexing/serializer"
import { permission } from "../authApi/permissions"
import { BadRequestError } from "../common/errors"
import { getIndexDir } from "./getIndexDir"
export const aggregates = app => async (
indexKey,
rangeStartParams = null,
rangeEndParams = null
) =>
apiWrapper(
app,
events.indexApi.aggregates,
permission.readIndex.isAuthorized(indexKey),
{ indexKey, rangeStartParams, rangeEndParams },
_aggregates,
app,
indexKey,
rangeStartParams,
rangeEndParams
)
const _aggregates = async (app, indexKey, rangeStartParams, rangeEndParams) => {
indexKey = safeKey(indexKey)
const indexNode = getExactNodeForKey(app.hierarchy)(indexKey)
const indexDir = getIndexDir(app.hierarchy, indexKey)
if (!isIndex(indexNode)) {
throw new BadRequestError("supplied key is not an index")
}
if (isShardedIndex(indexNode)) {
const shardKeys = await getShardKeysInRange(
app,
indexNode,
indexDir,
rangeStartParams,
rangeEndParams
)
let aggregateResult = null
for (const k of shardKeys) {
const shardResult = await getAggregates(
app.hierarchy,
app.datastore,
indexNode,
k
)
if (aggregateResult === null) {
aggregateResult = shardResult
} else {
aggregateResult = mergeShardAggregate(aggregateResult, shardResult)
}
}
return aggregateResult
}
return await getAggregates(
app.hierarchy,
app.datastore,
indexNode,
getUnshardedIndexDataKey(indexDir)
)
}
const mergeShardAggregate = (totals, shard) => {
const mergeGrouping = (tot, shr) => {
tot.count += shr.count
for (const aggName in tot) {
if (aggName === "count") continue
const totagg = tot[aggName]
const shragg = shr[aggName]
totagg.sum += shragg.sum
totagg.max = totagg.max > shragg.max ? totagg.max : shragg.max
totagg.min = totagg.min < shragg.min ? totagg.min : shragg.min
totagg.mean = totagg.sum / tot.count
}
return tot
}
for (const aggGroupDef in totals) {
for (const grouping in shard[aggGroupDef]) {
const groupingTotal = totals[aggGroupDef][grouping]
totals[aggGroupDef][grouping] = isUndefined(groupingTotal)
? shard[aggGroupDef][grouping]
: mergeGrouping(
totals[aggGroupDef][grouping],
shard[aggGroupDef][grouping]
)
}
}
return totals
}
const getAggregates = async (hierarchy, datastore, index, indexedDataKey) => {
const aggregateResult = {}
const doRead = iterateIndex(
async item => {
applyItemToAggregateResult(index, aggregateResult, item)
return CONTINUE_READING_RECORDS
},
async () => aggregateResult
)
return await doRead(hierarchy, datastore, index, indexedDataKey)
}
const applyItemToAggregateResult = (indexNode, result, item) => {
const getInitialAggregateResult = () => ({
sum: 0,
mean: null,
max: null,
min: null,
})
const applyAggregateResult = (agg, existing, count) => {
const value = compileCode(agg.aggregatedValue)({ record: item })
if (!isNumber(value)) return existing
existing.sum += value
existing.max =
value > existing.max || existing.max === null ? value : existing.max
existing.min =
value < existing.min || existing.min === null ? value : existing.min
existing.mean = existing.sum / count
return existing
}
for (const aggGroup of indexNode.aggregateGroups) {
if (!has(aggGroup.name)(result)) {
result[aggGroup.name] = {}
}
const thisGroupResult = result[aggGroup.name]
if (isNonEmptyString(aggGroup.condition)) {
if (!compileCode(aggGroup.condition)({ record: item })) {
continue
}
}
let group = isNonEmptyString(aggGroup.groupBy)
? compileCode(aggGroup.groupBy)({ record: item })
: "all"
if (!isNonEmptyString(group)) {
group = "(none)"
}
if (!has(group)(thisGroupResult)) {
thisGroupResult[group] = { count: 0 }
for (const agg of aggGroup.aggregates) {
thisGroupResult[group][agg.name] = getInitialAggregateResult()
}
}
thisGroupResult[group].count++
for (const agg of aggGroup.aggregates) {
const existingValues = thisGroupResult[group][agg.name]
thisGroupResult[group][agg.name] = applyAggregateResult(
agg,
existingValues,
thisGroupResult[group].count
)
}
}
}

143
packages/core/src/indexApi/buildIndex.js
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@ -1,143 +0,0 @@
import { filter, includes, some } from "lodash/fp"
import { getAllIdsIterator } from "../indexing/allIds"
import {
getFlattenedHierarchy,
getRecordNodeById,
getNode,
isIndex,
isModel,
getActualKeyOfParent,
getAllowedRecordNodesForIndex,
fieldReversesReferenceToIndex,
isTopLevelIndex,
} from "../templateApi/hierarchy"
import { joinKey, apiWrapper, events, $ } from "../common"
import {
createBuildIndexFolder,
transactionForBuildIndex,
} from "../transactions/create"
import { permission } from "../authApi/permissions"
import { BadRequestError } from "../common/errors"
import { initialiseIndex } from "../indexing/initialiseIndex"
import { getRecordInfo } from "../recordApi/recordInfo"
/** rebuilds an index
* @param {object} app - the application container
* @param {string} indexNodeKey - node key of the index, which the index belongs to
*/
export const buildIndex = app => async indexNodeKey =>
apiWrapper(
app,
events.indexApi.buildIndex,
permission.manageIndex.isAuthorized,
{ indexNodeKey },
_buildIndex,
app,
indexNodeKey
)
export const _buildIndex = async (app, indexNodeKey) => {
const indexNode = getNode(app.hierarchy, indexNodeKey)
await createBuildIndexFolder(app.datastore, indexNodeKey)
if (!isIndex(indexNode)) {
throw new BadRequestError("BuildIndex: must supply an indexnode")
}
if (indexNode.indexType === "reference") {
await buildReverseReferenceIndex(app, indexNode)
} else {
await buildHeirarchalIndex(app, indexNode)
}
await app.cleanupTransactions()
}
const buildReverseReferenceIndex = async (app, indexNode) => {
// Iterate through all referencING records,
// and update referenced index for each record
let recordCount = 0
const referencingNodes = $(app.hierarchy, [
getFlattenedHierarchy,
filter(
n =>
isModel(n) && some(fieldReversesReferenceToIndex(indexNode))(n.fields)
),
])
const createTransactionsForReferencingNode = async referencingNode => {
const iterateReferencingNodes = await getAllIdsIterator(app)(
referencingNode.collectionNodeKey()
)
let referencingIdIterator = await iterateReferencingNodes()
while (!referencingIdIterator.done) {
const { result } = referencingIdIterator
for (const id of result.ids) {
const recordKey = joinKey(result.collectionKey, id)
await transactionForBuildIndex(
app,
indexNode.nodeKey(),
recordKey,
recordCount
)
recordCount++
}
referencingIdIterator = await iterateReferencingNodes()
}
}
for (const referencingNode of referencingNodes) {
await createTransactionsForReferencingNode(referencingNode)
}
}
const buildHeirarchalIndex = async (app, indexNode) => {
let recordCount = 0
const createTransactionsForIds = async (collectionKey, ids) => {
for (const recordId of ids) {
const recordKey = joinKey(collectionKey, recordId)
const recordNode = getRecordNodeById(app.hierarchy, recordId)
if (recordNodeApplies(indexNode)(recordNode)) {
await transactionForBuildIndex(
app,
indexNode.nodeKey(),
recordKey,
recordCount
)
recordCount++
}
}
}
const collectionRecords = getAllowedRecordNodesForIndex(
app.hierarchy,
indexNode
)
for (const targetCollectionRecordNode of collectionRecords) {
const allIdsIterator = await getAllIdsIterator(app)(
targetCollectionRecordNode.collectionNodeKey()
)
let allIds = await allIdsIterator()
while (allIds.done === false) {
await createTransactionsForIds(
allIds.result.collectionKey,
allIds.result.ids
)
allIds = await allIdsIterator()
}
}
return recordCount
}
const recordNodeApplies = indexNode => recordNode =>
includes(recordNode.nodeId)(indexNode.allowedModelNodeIds)
export default buildIndex

38
packages/core/src/indexApi/delete.js
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@ -1,38 +0,0 @@
import { tryAwaitOrIgnore, safeKey } from "../common"
import {
isIndex,
isShardedIndex,
getExactNodeForKey,
} from "../templateApi/hierarchy"
import {
getAllShardKeys,
getShardMapKey,
getUnshardedIndexDataKey,
} from "../indexing/sharding"
import { getIndexDir } from "./getIndexDir"
export const _deleteIndex = async (app, indexKey, includeFolder) => {
indexKey = safeKey(indexKey)
const indexNode = getExactNodeForKey(app.hierarchy)(indexKey)
const indexDir = getIndexDir(app.hierarchy, indexKey)
if (!isIndex(indexNode)) {
throw new Error("Supplied key is not an index")
}
if (isShardedIndex(indexNode)) {
const shardKeys = await getAllShardKeys(app, indexNode, indexDir)
for (const k of shardKeys) {
await tryAwaitOrIgnore(app.datastore.deleteFile(k))
}
tryAwaitOrIgnore(await app.datastore.deleteFile(getShardMapKey(indexDir)))
} else {
await tryAwaitOrIgnore(
app.datastore.deleteFile(getUnshardedIndexDataKey(indexDir))
)
}
if (includeFolder) {
tryAwaitOrIgnore(await app.datastore.deleteFolder(indexDir))
}
}

14
packages/core/src/indexApi/getIndexDir.js
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@ -1,14 +0,0 @@
import { getRecordInfo } from "../recordApi/recordInfo"
import { getParentKey, getLastPartInKey } from "../templateApi/hierarchy"
import { keySep } from "../common"
export const getIndexDir = (hierarchy, indexKey) => {
const parentKey = getParentKey(indexKey)
if (parentKey === "") return indexKey
if (parentKey === keySep) return indexKey
const recordInfo = getRecordInfo(hierarchy, parentKey)
return recordInfo.child(getLastPartInKey(indexKey))
}

11
packages/core/src/indexApi/index.js
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@ -1,11 +0,0 @@
import { buildIndex } from "./buildIndex"
import { listItems } from "./listItems"
import { aggregates } from "./aggregates"
export const getIndexApi = app => ({
listItems: listItems(app),
buildIndex: buildIndex(app),
aggregates: aggregates(app),
})
export default getIndexApi

76
packages/core/src/indexApi/listItems.js
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@ -1,76 +0,0 @@
import { flatten, merge } from "lodash/fp"
import { safeKey, apiWrapper, $, events, isNonEmptyString } from "../common"
import { readIndex, searchIndex } from "../indexing/read"
import {
getUnshardedIndexDataKey,
getShardKeysInRange,
} from "../indexing/sharding"
import {
getExactNodeForKey,
isIndex,
isShardedIndex,
} from "../templateApi/hierarchy"
import { permission } from "../authApi/permissions"
import { getIndexDir } from "./getIndexDir"
export const listItems = app => async (indexKey, options) => {
indexKey = safeKey(indexKey)
return apiWrapper(
app,
events.indexApi.listItems,
permission.readIndex.isAuthorized(indexKey),
{ indexKey, options },
_listItems,
app,
indexKey,
options
)
}
const defaultOptions = {
rangeStartParams: null,
rangeEndParams: null,
searchPhrase: null,
}
export const _listItems = async (app, indexKey, options = defaultOptions) => {
const { searchPhrase, rangeStartParams, rangeEndParams } = $({}, [
merge(options),
merge(defaultOptions),
])
const getItems = async indexedDataKey =>
isNonEmptyString(searchPhrase)
? await searchIndex(
app.hierarchy,
app.datastore,
indexNode,
indexedDataKey,
searchPhrase
)
: await readIndex(app.hierarchy, app.datastore, indexNode, indexedDataKey)
indexKey = safeKey(indexKey)
const indexNode = getExactNodeForKey(app.hierarchy)(indexKey)
const indexDir = getIndexDir(app.hierarchy, indexKey)
if (!isIndex(indexNode)) {
throw new Error("supplied key is not an index")
}
if (isShardedIndex(indexNode)) {
const shardKeys = await getShardKeysInRange(
app,
indexNode,
indexDir,
rangeStartParams,
rangeEndParams
)
const items = []
for (const k of shardKeys) {
items.push(await getItems(k))
}
return flatten(items)
}
return await getItems(getUnshardedIndexDataKey(indexDir))
}

279
packages/core/src/indexing/allIds.js
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@ -1,279 +0,0 @@
import { flatten, orderBy, filter, isUndefined } from "lodash/fp"
import {
getFlattenedHierarchy,
getCollectionNodeByKeyOrNodeKey,
getNodeByKeyOrNodeKey,
isCollectionRecord,
isAncestor,
} from "../templateApi/hierarchy"
import { joinKey, safeKey, $ } from "../common"
import { getCollectionDir } from "../recordApi/recordInfo"
export const RECORDS_PER_FOLDER = 1000
export const allIdChars =
"0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-"
// this should never be changed - ever
// - existing databases depend on the order of chars this string
/**
* folderStructureArray should return an array like
* - [1] = all records fit into one folder
* - [2] = all records fite into 2 folders
* - [64, 3] = all records fit into 64 * 3 folders
* - [64, 64, 10] = all records fit into 64 * 64 * 10 folder
* (there are 64 possible chars in allIsChars)
*/
export const folderStructureArray = recordNode => {
const totalFolders = Math.ceil(recordNode.estimatedRecordCount / 1000)
const folderArray = []
let levelCount = 1
while (64 ** levelCount < totalFolders) {
levelCount += 1
folderArray.push(64)
}
const parentFactor = 64 ** folderArray.length
if (parentFactor < totalFolders) {
folderArray.push(Math.ceil(totalFolders / parentFactor))
}
return folderArray
/*
const maxRecords = currentFolderPosition === 0
? RECORDS_PER_FOLDER
: currentFolderPosition * 64 * RECORDS_PER_FOLDER;
if(maxRecords < recordNode.estimatedRecordCount) {
return folderStructureArray(
recordNode,
[...currentArray, 64],
currentFolderPosition + 1);
} else {
const childFolderCount = Math.ceil(recordNode.estimatedRecordCount / maxRecords );
return [...currentArray, childFolderCount]
}*/
}
export const getAllIdsIterator = app => async collection_Key_or_NodeKey => {
collection_Key_or_NodeKey = safeKey(collection_Key_or_NodeKey)
const recordNode =
getCollectionNodeByKeyOrNodeKey(app.hierarchy, collection_Key_or_NodeKey) ||
getNodeByKeyOrNodeKey(app.hierarchy, collection_Key_or_NodeKey)
const getAllIdsIteratorForCollectionKey = async (
recordNode,
collectionKey
) => {
const folderStructure = folderStructureArray(recordNode)
let currentFolderContents = []
let currentPosition = []
const collectionDir = getCollectionDir(app.hierarchy, collectionKey)
const basePath = joinKey(collectionDir, recordNode.nodeId.toString())
// "folderStructure" determines the top, sharding folders
// we need to add one, for the collection root folder, which
// always exists
const levels = folderStructure.length + 1
const topLevel = levels - 1
/* populate initial directory structure in form:
[
{path: "/a", contents: ["b", "c", "d"]},
{path: "/a/b", contents: ["e","f","g"]},
{path: "/a/b/e", contents: ["1-abcd","2-cdef","3-efgh"]},
]
// stores contents on each parent level
// top level has ID folders
*/
const firstFolder = async () => {
let folderLevel = 0
const lastPathHasContent = () =>
folderLevel === 0 ||
currentFolderContents[folderLevel - 1].contents.length > 0
while (folderLevel <= topLevel && lastPathHasContent()) {
let thisPath = basePath
for (let lev = 0; lev < currentPosition.length; lev++) {
thisPath = joinKey(thisPath, currentFolderContents[lev].contents[0])
}
const contentsThisLevel = await app.datastore.getFolderContents(
thisPath
)
currentFolderContents.push({
contents: contentsThisLevel,
path: thisPath,
})
// should start as something like [0,0]
if (folderLevel < topLevel) currentPosition.push(0)
folderLevel += 1
}
return currentPosition.length === levels - 1
}
const isOnLastFolder = level => {
const result =
currentPosition[level] ===
currentFolderContents[level].contents.length - 1
return result
}
const getNextFolder = async (lev = undefined) => {
lev = isUndefined(lev) ? topLevel : lev
const parentLev = lev - 1
if (parentLev < 0) return false
if (isOnLastFolder(parentLev)) {
return await getNextFolder(parentLev)
}
const newPosition = currentPosition[parentLev] + 1
currentPosition[parentLev] = newPosition
const nextFolder = joinKey(
currentFolderContents[parentLev].path,
currentFolderContents[parentLev].contents[newPosition]
)
currentFolderContents[
lev
].contents = await app.datastore.getFolderContents(nextFolder)
currentFolderContents[lev].path = nextFolder
if (lev !== topLevel) {
// we just advanced a parent folder, so now need to
// do the same to the next levels
let loopLevel = lev + 1
while (loopLevel <= topLevel) {
const loopParentLevel = loopLevel - 1
currentPosition[loopParentLevel] = 0
const nextLoopFolder = joinKey(
currentFolderContents[loopParentLevel].path,
currentFolderContents[loopParentLevel].contents[0]
)
currentFolderContents[
loopLevel
].contents = await app.datastore.getFolderContents(nextLoopFolder)
currentFolderContents[loopLevel].path = nextLoopFolder
loopLevel += 1
}
}
// true ==has more ids... (just loaded more)
return true
}
const idsCurrentFolder = () =>
currentFolderContents[currentFolderContents.length - 1].contents
const fininshedResult = { done: true, result: { ids: [], collectionKey } }
let hasStarted = false
let hasMore = true
const getIdsFromCurrentfolder = async () => {
if (!hasMore) {
return fininshedResult
}
if (!hasStarted) {
hasMore = await firstFolder()
hasStarted = true
return {
result: {
ids: idsCurrentFolder(),
collectionKey,
},
done: false,
}
}
hasMore = await getNextFolder()
return {
result: {
ids: hasMore ? idsCurrentFolder() : [],
collectionKey,
},
done: !hasMore,
}
}
return getIdsFromCurrentfolder
}
const ancestors = $(getFlattenedHierarchy(app.hierarchy), [
filter(isCollectionRecord),
filter(
n => isAncestor(recordNode)(n) || n.nodeKey() === recordNode.nodeKey()
),
orderBy([n => n.nodeKey().length], ["asc"]),
]) // parents first
const traverseForIteraterators = async (
parentRecordKey = "",
currentNodeIndex = 0
) => {
const currentNode = ancestors[currentNodeIndex]
const currentCollectionKey = joinKey(
parentRecordKey,
currentNode.collectionName
)
if (currentNode.nodeKey() === recordNode.nodeKey()) {
return [
await getAllIdsIteratorForCollectionKey(
currentNode,
currentCollectionKey
),
]
}
const allIterators = []
const currentIterator = await getAllIdsIteratorForCollectionKey(
currentNode,
currentCollectionKey
)
let ids = await currentIterator()
while (ids.done === false) {
for (const id of ids.result.ids) {
allIterators.push(
await traverseForIteraterators(
joinKey(currentCollectionKey, id),
currentNodeIndex + 1
)
)
}
ids = await currentIterator()
}
return flatten(allIterators)
}
const iteratorsArray = await traverseForIteraterators()
let currentIteratorIndex = 0
return async () => {
if (iteratorsArray.length === 0) {
return { done: true, result: [] }
}
const innerResult = await iteratorsArray[currentIteratorIndex]()
if (!innerResult.done) {
return innerResult
}
if (currentIteratorIndex == iteratorsArray.length - 1) {
return { done: true, result: innerResult.result }
}
currentIteratorIndex++
return { done: false, result: innerResult.result }
}
}
export default getAllIdsIterator

107
packages/core/src/indexing/apply.js
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import { ensureShardNameIsInShardMap } from "./sharding"
import { getIndexWriter } from "./serializer"
import { isShardedIndex, getParentKey } from "../templateApi/hierarchy"
import { promiseWriteableStream } from "./promiseWritableStream"
import { promiseReadableStream } from "./promiseReadableStream"
export const applyToShard = async (
hierarchy,
store,
indexDir,
indexNode,
indexShardKey,
recordsToWrite,
keysToRemove
) => {
const createIfNotExists = recordsToWrite.length > 0
const writer = await getWriter(
hierarchy,
store,
indexDir,
indexShardKey,
indexNode,
createIfNotExists
)
if (writer === SHARD_DELETED) return
await writer.updateIndex(recordsToWrite, keysToRemove)
await swapTempFileIn(store, indexShardKey)
}
const SHARD_DELETED = "SHARD_DELETED"
const getWriter = async (
hierarchy,
store,
indexDir,
indexedDataKey,
indexNode,
createIfNotExists
) => {
let readableStream = null
if (isShardedIndex(indexNode)) {
await ensureShardNameIsInShardMap(store, indexDir, indexedDataKey)
if (!(await store.exists(indexedDataKey))) {
if (await store.exists(getParentKey(indexedDataKey))) {
await store.createFile(indexedDataKey, "")
} else {
return SHARD_DELETED
}
}
}
try {
readableStream = promiseReadableStream(
await store.readableFileStream(indexedDataKey)
)
} catch (e) {
if (await store.exists(indexedDataKey)) {
throw e
} else {
if (createIfNotExists) {
if (await store.exists(getParentKey(indexedDataKey))) {
await store.createFile(indexedDataKey, "")
} else {
return SHARD_DELETED
}
} else {
return SHARD_DELETED
}
readableStream = promiseReadableStream(
await store.readableFileStream(indexedDataKey)
)
}
}
const writableStream = promiseWriteableStream(
await store.writableFileStream(indexedDataKey + ".temp")
)
return getIndexWriter(hierarchy, indexNode, readableStream, writableStream)
}
const swapTempFileIn = async (store, indexedDataKey, isRetry = false) => {
const tempFile = `${indexedDataKey}.temp`
try {
await store.deleteFile(indexedDataKey)
} catch (e) {
// ignore failure, incase it has not been created yet
// if parent folder does not exist, assume that this index
// should not be there
if (!(await store.exists(getParentKey(indexedDataKey)))) {
return
}
}
try {
await store.renameFile(tempFile, indexedDataKey)
} catch (e) {
// retrying in case delete failure was for some other reason
if (!isRetry) {
await swapTempFileIn(store, indexedDataKey, true)
} else {
throw new Error("Failed to swap in index filed: " + e.message)
}
}
}

85
packages/core/src/indexing/evaluate.js
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import { compileCode } from "../common/compileCode"
import { isUndefined, keys, cloneDeep, isFunction, includes } from "lodash/fp"
import { defineError } from "../common"
export const filterEval = "FILTER_EVALUATE"
export const filterCompile = "FILTER_COMPILE"
export const mapEval = "MAP_EVALUATE"
export const mapCompile = "MAP_COMPILE"
export const removeUndeclaredFields = "REMOVE_UNDECLARED_FIELDS"
export const addUnMappedFields = "ADD_UNMAPPED_FIELDS"
export const addTheKey = "ADD_KEY"
const getEvaluateResult = () => ({
isError: false,
passedFilter: true,
result: null,
})
export const compileFilter = index => compileCode(index.filter)
export const compileMap = index => compileCode(index.map)
export const passesFilter = (record, index) => {
const context = { record }
if (!index.filter) return true
const compiledFilter = defineError(() => compileFilter(index), filterCompile)
return defineError(() => compiledFilter(context), filterEval)
}
export const mapRecord = (record, index) => {
const recordClone = cloneDeep(record)
const context = { record: recordClone }
const map = index.map ? index.map : "return {...record};"
const compiledMap = defineError(() => compileCode(map), mapCompile)
const mapped = defineError(() => compiledMap(context), mapEval)
const mappedKeys = keys(mapped)
for (let i = 0; i < mappedKeys.length; i++) {
const key = mappedKeys[i]
mapped[key] = isUndefined(mapped[key]) ? null : mapped[key]
if (isFunction(mapped[key])) {
delete mapped[key]
}
if (key === "IsNew") {
delete mapped.IsNew
}
}
mapped.key = record.key
mapped.sortKey = index.getSortKey
? compileCode(index.getSortKey)(context)
: record.id
return mapped
}
export const evaluate = record => index => {
const result = getEvaluateResult()
try {
result.passedFilter = passesFilter(record, index)
} catch (err) {
result.isError = true
result.passedFilter = false
result.result = err.message
}
if (!result.passedFilter) return result
try {
result.result = mapRecord(record, index)
} catch (err) {
result.isError = true
result.result = err.message
}
return result
}
export default evaluate

58
packages/core/src/indexing/indexSchemaCreator.js
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@ -1,58 +0,0 @@
import { has, keys, map, orderBy, filter, concat, reverse } from "lodash/fp"
import { getAllowedRecordNodesForIndex } from "../templateApi/hierarchy"
import { mapRecord } from "./evaluate"
import { constructRecord } from "../recordApi/getNew"
import { getSampleFieldValue, detectType, all } from "../types"
import { $ } from "../common"
export const generateSchema = (hierarchy, indexNode) => {
const recordNodes = getAllowedRecordNodesForIndex(hierarchy, indexNode)
const mappedRecords = $(recordNodes, [
map(n => mapRecord(createSampleRecord(n), indexNode)),
])
// always has record key and sort key
const schema = {
sortKey: all.string,
key: all.string,
}
const fieldsHas = has(schema)
const setField = (fieldName, value) => {
if (value === null || value === undefined) {
return
}
const thisType = detectType(value)
if (fieldsHas(fieldName)) {
if (schema[fieldName] !== thisType) {
schema[fieldName] = all.string
}
} else {
schema[fieldName] = thisType
}
}
for (const mappedRec of mappedRecords) {
for (const f in mappedRec) {
setField(f, mappedRec[f])
}
}
// returing an array of {name, type}
return $(schema, [
keys,
map(k => ({ name: k, type: schema[k].name })),
filter(s => s.name !== "sortKey"),
orderBy("name", ["desc"]), // reverse alpha
concat([{ name: "sortKey", type: all.string.name }]), // sortKey on end
reverse, // sortKey first, then rest are alphabetical
])
}
const createSampleRecord = recordNode =>
constructRecord(
recordNode,
getSampleFieldValue,
recordNode.parent().nodeKey()
)

27
packages/core/src/indexing/initialiseIndex.js
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@ -1,27 +0,0 @@
import { isShardedIndex } from "../templateApi/hierarchy"
import { joinKey } from "../common"
import {
getShardMapKey,
getUnshardedIndexDataKey,
createIndexFile,
} from "./sharding"
export const initialiseIndex = async (datastore, dir, index) => {
const indexDir = joinKey(dir, index.name)
let newDir = false
if (!(await datastore.exists(indexDir))) {
await datastore.createFolder(indexDir)
newDir = true
}
if (isShardedIndex(index)) {
const shardFile = getShardMapKey(indexDir)
if (newDir || !(await datastore.exists(shardFile)))
await datastore.createFile(shardFile, "[]")
} else {
const indexFile = getUnshardedIndexDataKey(indexDir)
if (newDir || !(await datastore.exists(indexFile)))
await createIndexFile(datastore, indexFile, index)
}
}

80
packages/core/src/indexing/promiseReadableStream.js
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@ -1,80 +0,0 @@
// adapted from https://github.com/dex4er/js-promise-readable
// thanks :)
export const promiseReadableStream = stream => {
let _errored
const _errorHandler = err => {
_errored = err
}
stream.on("error", _errorHandler)
const read = size => {
return new Promise((resolve, reject) => {
if (_errored) {
const err = _errored
_errored = undefined
return reject(err)
}
if (!stream.readable || stream.closed || stream.destroyed) {
return resolve()
}
const readableHandler = () => {
const chunk = stream.read(size)
if (chunk) {
removeListeners()
resolve(chunk)
}
}
const closeHandler = () => {
removeListeners()
resolve()
}
const endHandler = () => {
removeListeners()
resolve()
}
const errorHandler = err => {
_errored = undefined
removeListeners()
reject(err)
}
const removeListeners = () => {
stream.removeListener("close", closeHandler)
stream.removeListener("error", errorHandler)
stream.removeListener("end", endHandler)
stream.removeListener("readable", readableHandler)
}
stream.on("close", closeHandler)
stream.on("end", endHandler)
stream.on("error", errorHandler)
stream.on("readable", readableHandler)
readableHandler()
})
}
const destroy = () => {
if (stream) {
if (_errorHandler) {
stream.removeListener("error", _errorHandler)
}
if (typeof stream.destroy === "function") {
stream.destroy()
}
}
}
return { read, destroy, stream }
}
export default promiseReadableStream

117
packages/core/src/indexing/promiseWritableStream.js
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// adapted from https://github.com/dex4er/js-promise-writable
// Thank you :)
export const promiseWriteableStream = stream => {
let _errored
const _errorHandler = err => {
_errored = err
}
stream.on("error", _errorHandler)
const write = chunk => {
let rejected = false
return new Promise((resolve, reject) => {
if (_errored) {
const err = _errored
_errored = undefined
return reject(err)
}
if (!stream.writable || stream.closed || stream.destroyed) {
return reject(new Error("write after end"))
}
const writeErrorHandler = err => {
_errored = undefined
rejected = true
reject(err)
}
stream.once("error", writeErrorHandler)
const canWrite = stream.write(chunk)
stream.removeListener("error", writeErrorHandler)
if (canWrite) {
if (!rejected) {
resolve(chunk.length)
}
} else {
const errorHandler = err => {
_errored = undefined
removeListeners()
reject(err)
}
const drainHandler = () => {
removeListeners()
resolve(chunk.length)
}
const closeHandler = () => {
removeListeners()
resolve(chunk.length)
}
const finishHandler = () => {
removeListeners()
resolve(chunk.length)
}
const removeListeners = () => {
stream.removeListener("close", closeHandler)
stream.removeListener("drain", drainHandler)
stream.removeListener("error", errorHandler)
stream.removeListener("finish", finishHandler)
}
stream.on("close", closeHandler)
stream.on("drain", drainHandler)
stream.on("error", errorHandler)
stream.on("finish", finishHandler)
}
})
}
const end = () => {
return new Promise((resolve, reject) => {
if (_errored) {
const err = _errored
_errored = undefined
return reject(err)
}
if (!stream.writable || stream.closed || stream.destroyed) {
return resolve()
}
const finishHandler = () => {
removeListeners()
resolve()
}
const errorHandler = err => {
_errored = undefined
removeListeners()
reject(err)
}
const removeListeners = () => {
stream.removeListener("error", errorHandler)
stream.removeListener("finish", finishHandler)
}
stream.on("finish", finishHandler)
stream.on("error", errorHandler)
stream.end()
})
}
return { write, end }
}
export default promiseWriteableStream

93
packages/core/src/indexing/read.js
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import lunr from "lunr"
import { promiseReadableStream } from "./promiseReadableStream"
import { createIndexFile } from "./sharding"
import { generateSchema } from "./indexSchemaCreator"
import { getIndexReader, CONTINUE_READING_RECORDS } from "./serializer"
import {
getAllowedRecordNodesForIndex,
getRecordNodeId,
} from "../templateApi/hierarchy"
import { $ } from "../common"
import { filter, includes, find } from "lodash/fp"
export const readIndex = async (
hierarchy,
datastore,
index,
indexedDataKey
) => {
const records = []
const getType = typeLoader(index, hierarchy)
const doRead = iterateIndex(
async item => {
item.type = getType(item.key)
records.push(item)
return CONTINUE_READING_RECORDS
},
async () => records
)
return await doRead(hierarchy, datastore, index, indexedDataKey)
}
export const searchIndex = async (
hierarchy,
datastore,
index,
indexedDataKey,
searchPhrase
) => {
const records = []
const schema = generateSchema(hierarchy, index)
const getType = typeLoader(index, hierarchy)
const doRead = iterateIndex(
async item => {
item.type = getType(item.key)
const idx = lunr(function() {
this.ref("key")
for (const field of schema) {
this.field(field.name)
}
this.add(item)
})
const searchResults = idx.search(searchPhrase)
if (searchResults.length === 1) {
item._searchResult = searchResults[0]
records.push(item)
}
return CONTINUE_READING_RECORDS
},
async () => records
)
return await doRead(hierarchy, datastore, index, indexedDataKey)
}
export const iterateIndex = (onGetItem, getFinalResult) => async (
hierarchy,
datastore,
index,
indexedDataKey
) => {
try {
const readableStream = promiseReadableStream(
await datastore.readableFileStream(indexedDataKey)
)
const read = getIndexReader(hierarchy, index, readableStream)
await read(onGetItem)
return getFinalResult()
} catch (e) {
if (await datastore.exists(indexedDataKey)) {
throw e
} else {
await createIndexFile(datastore, indexedDataKey, index)
}
return []
}
}
const typeLoader = (index, hierarchy) => {
const allowedNodes = getAllowedRecordNodesForIndex(hierarchy, index)
return key => find(n => getRecordNodeId(key) === n.nodeId)(allowedNodes).name
}

126
packages/core/src/indexing/relevant.js
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@ -1,126 +0,0 @@
import { orderBy } from "lodash"
import {
reduce,
find,
includes,
flatten,
union,
filter,
each,
map,
} from "lodash/fp"
import {
joinKey,
splitKey,
isNonEmptyString,
isNothing,
$,
isSomething,
} from "../common"
import {
getFlattenedHierarchy,
getNode,
getRecordNodeId,
getExactNodeForKey,
recordNodeIdIsAllowed,
isModel,
isGlobalIndex,
} from "../templateApi/hierarchy"
import { indexTypes } from "../templateApi/indexes"
import { getIndexDir } from "../indexApi/getIndexDir"
import { getRecordInfo } from "../recordApi/recordInfo"
export const getRelevantAncestorIndexes = (hierarchy, record) => {
const key = record.key
const keyParts = splitKey(key)
const nodeId = getRecordNodeId(key)
const flatHierarchy = orderBy(
getFlattenedHierarchy(hierarchy),
[node => node.pathRegx().length],
["desc"]
)
const makeindexNodeAndDir_ForAncestorIndex = (indexNode, parentRecordDir) =>
makeIndexNodeAndDir(indexNode, joinKey(parentRecordDir, indexNode.name))
const traverseAncestorIndexesInPath = () =>
reduce(
(acc, part) => {
const currentIndexKey = joinKey(acc.lastIndexKey, part)
acc.lastIndexKey = currentIndexKey
const testPathRegx = p =>
new RegExp(`${p.pathRegx()}$`).test(currentIndexKey)
const nodeMatch = find(testPathRegx)(flatHierarchy)
if (isNothing(nodeMatch)) {
return acc
}
if (!isModel(nodeMatch) || nodeMatch.indexes.length === 0) {
return acc
}
const indexes = $(nodeMatch.indexes, [
filter(
i =>
i.indexType === indexTypes.ancestor &&
(i.allowedModelNodeIds.length === 0 ||
includes(nodeId)(i.allowedModelNodeIds))
),
])
const currentRecordDir = getRecordInfo(hierarchy, currentIndexKey).dir
each(v =>
acc.nodesAndKeys.push(
makeindexNodeAndDir_ForAncestorIndex(v, currentRecordDir)
)
)(indexes)
return acc
},
{ lastIndexKey: "", nodesAndKeys: [] }
)(keyParts).nodesAndKeys
const rootIndexes = $(flatHierarchy, [
filter(n => isGlobalIndex(n) && recordNodeIdIsAllowed(n)(nodeId)),
map(i => makeIndexNodeAndDir(i, getIndexDir(hierarchy, i.nodeKey()))),
])
return union(traverseAncestorIndexesInPath())(rootIndexes)
}
export const getRelevantReverseReferenceIndexes = (hierarchy, record) =>
$(record.key, [
getExactNodeForKey(hierarchy),
n => n.fields,
filter(
f =>
f.type === "reference" &&
isSomething(record[f.name]) &&
isNonEmptyString(record[f.name].key)
),
map(f =>
$(f.typeOptions.reverseIndexNodeKeys, [
map(n => ({
recordNode: getNode(hierarchy, n),
field: f,
})),
])
),
flatten,
map(n =>
makeIndexNodeAndDir(
n.recordNode,
joinKey(
getRecordInfo(hierarchy, record[n.field.name].key).dir,
n.recordNode.name
)
)
),
])
const makeIndexNodeAndDir = (indexNode, indexDir) => ({ indexNode, indexDir })
export default getRelevantAncestorIndexes

238
packages/core/src/indexing/serializer.js
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@ -1,238 +0,0 @@
import { generateSchema } from "./indexSchemaCreator"
import { has, isString, difference, find } from "lodash/fp"
import { Buffer } from "safe-buffer"
import { StringDecoder } from "string_decoder"
import { getType } from "../types"
import { isSomething } from "../common"
export const BUFFER_MAX_BYTES = 524288 // 0.5Mb
export const CONTINUE_READING_RECORDS = "CONTINUE_READING"
export const READ_REMAINING_TEXT = "READ_REMAINING"
export const CANCEL_READ = "CANCEL"
export const getIndexWriter = (
hierarchy,
indexNode,
readableStream,
writableStream,
end
) => {
const schema = generateSchema(hierarchy, indexNode)
return {
read: read(readableStream, schema),
updateIndex: updateIndex(readableStream, writableStream, schema, end),
}
}
export const getIndexReader = (hierarchy, indexNode, readableStream) =>
read(readableStream, generateSchema(hierarchy, indexNode))
const updateIndex = (readableStream, writableStream, schema) => async (
itemsToWrite,
keysToRemove
) => {
const write = newOutputWriter(BUFFER_MAX_BYTES, writableStream)
const writtenItems = []
await read(readableStream, schema)(
async indexedItem => {
const updated = find(i => indexedItem.key === i.key)(itemsToWrite)
const removed = find(k => indexedItem.key === k)(keysToRemove)
if (isSomething(removed)) return CONTINUE_READING_RECORDS
if (isSomething(updated)) {
const serializedItem = serializeItem(schema, updated)
await write(serializedItem)
writtenItems.push(updated)
} else {
await write(serializeItem(schema, indexedItem))
}
return CONTINUE_READING_RECORDS
},
async text => await write(text)
)
if (writtenItems.length !== itemsToWrite.length) {
const toAdd = difference(itemsToWrite, writtenItems)
for (let added of toAdd) {
await write(serializeItem(schema, added))
}
} else if (writtenItems.length === 0) {
// potentially are no records
await write("")
}
await write()
await writableStream.end()
}
const read = (readableStream, schema) => async (onGetItem, onGetText) => {
const readInput = newInputReader(readableStream)
let text = await readInput()
let status = CONTINUE_READING_RECORDS
while (text.length > 0) {
if (status === READ_REMAINING_TEXT) {
await onGetText(text)
continue
}
if (status === CANCEL_READ) {
return
}
let rowText = ""
let currentCharIndex = 0
for (let currentChar of text) {
rowText += currentChar
if (currentChar === "\r") {
status = await onGetItem(deserializeRow(schema, rowText))
rowText = ""
if (status === READ_REMAINING_TEXT) {
break
}
}
currentCharIndex++
}
if (currentCharIndex < text.length - 1) {
await onGetText(text.substring(currentCharIndex + 1))
}
text = await readInput()
}
await readableStream.destroy()
}
const newOutputWriter = (flushBoundary, writableStream) => {
let currentBuffer = null
return async text => {
if (isString(text) && currentBuffer === null)
currentBuffer = Buffer.from(text, "utf8")
else if (isString(text))
currentBuffer = Buffer.concat([currentBuffer, Buffer.from(text, "utf8")])
if (
currentBuffer !== null &&
(currentBuffer.length > flushBoundary || !isString(text))
) {
await writableStream.write(currentBuffer)
currentBuffer = null
}
}
}
const newInputReader = readableStream => {
const decoder = new StringDecoder("utf8")
let remainingBytes = []
return async () => {
let nextBytesBuffer = await readableStream.read(BUFFER_MAX_BYTES)
const remainingBuffer = Buffer.from(remainingBytes)
if (!nextBytesBuffer) nextBytesBuffer = Buffer.from([])
const moreToRead = nextBytesBuffer.length === BUFFER_MAX_BYTES
const buffer = Buffer.concat(
[remainingBuffer, nextBytesBuffer],
remainingBuffer.length + nextBytesBuffer.length
)
const text = decoder.write(buffer)
remainingBytes = decoder.end(buffer)
if (!moreToRead && remainingBytes.length > 0) {
// if for any reason, we have remaining bytes at the end
// of the stream, just discard - dont see why this should
// ever happen, but if it does, it could cause a stack overflow
remainingBytes = []
}
return text
}
}
const deserializeRow = (schema, rowText) => {
let currentPropIndex = 0
let currentCharIndex = 0
let currentValueText = ""
let isEscaped = false
const item = {}
const setCurrentProp = () => {
const currentProp = schema[currentPropIndex]
const type = getType(currentProp.type)
const value =
currentValueText === ""
? type.getDefaultValue()
: type.safeParseValue(currentValueText)
item[currentProp.name] = value
}
while (currentPropIndex < schema.length) {
if (currentCharIndex < rowText.length) {
const currentChar = rowText[currentCharIndex]
if (isEscaped) {
if (currentChar === "r") {
currentValueText += "\r"
} else {
currentValueText += currentChar
}
isEscaped = false
} else {
if (currentChar === ",") {
setCurrentProp()
currentValueText = ""
currentPropIndex++
} else if (currentChar === "\\") {
isEscaped = true
} else {
currentValueText += currentChar
}
}
currentCharIndex++
} else {
currentValueText = ""
setCurrentProp()
currentPropIndex++
}
}
return item
}
export const serializeItem = (schema, item) => {
let rowText = ""
for (let prop of schema) {
const type = getType(prop.type)
const value = has(prop.name)(item)
? item[prop.name]
: type.getDefaultValue()
const valStr = type.stringify(value)
for (let i = 0; i < valStr.length; i++) {
const currentChar = valStr[i]
if (currentChar === "," || currentChar === "\r" || currentChar === "\\") {
rowText += "\\"
}
if (currentChar === "\r") {
rowText += "r"
} else {
rowText += currentChar
}
}
rowText += ","
}
rowText += "\r"
return rowText
}

116
packages/core/src/indexing/sharding.js
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@ -1,116 +0,0 @@
import { compileCode } from "../common/compileCode"
import { filter, includes, map, last } from "lodash/fp"
import {
getActualKeyOfParent,
isGlobalIndex,
getParentKey,
isShardedIndex,
} from "../templateApi/hierarchy"
import { joinKey, isNonEmptyString, splitKey, $ } from "../common"
export const getIndexedDataKey = (indexNode, indexDir, record) => {
const getShardName = (indexNode, record) => {
const shardNameFunc = compileCode(indexNode.getShardName)
try {
return shardNameFunc({ record })
} catch (e) {
const errorDetails = `shardCode: ${
indexNode.getShardName
} :: record: ${JSON.stringify(record)} :: `
e.message =
"Error running index shardname func: " + errorDetails + e.message
throw e
}
}
const shardName = isNonEmptyString(indexNode.getShardName)
? `${getShardName(indexNode, record)}.csv`
: "index.csv"
return joinKey(indexDir, shardName)
}
export const getShardKeysInRange = async (
app,
indexNode,
indexDir,
startRecord = null,
endRecord = null
) => {
const startShardName = !startRecord
? null
: shardNameFromKey(getIndexedDataKey(indexNode, indexDir, startRecord))
const endShardName = !endRecord
? null
: shardNameFromKey(getIndexedDataKey(indexNode, indexDir, endRecord))
return $(await getShardMap(app.datastore, indexDir), [
filter(
k =>
(startRecord === null || k >= startShardName) &&
(endRecord === null || k <= endShardName)
),
map(k => joinKey(indexDir, `${k}.csv`)),
])
}
export const ensureShardNameIsInShardMap = async (
store,
indexDir,
indexedDataKey
) => {
const map = await getShardMap(store, indexDir)
const shardName = shardNameFromKey(indexedDataKey)
if (!includes(shardName)(map)) {
map.push(shardName)
await writeShardMap(store, indexDir, map)
}
}
export const getShardMap = async (datastore, indexDir) => {
const shardMapKey = getShardMapKey(indexDir)
try {
return await datastore.loadJson(shardMapKey)
} catch (_) {
await datastore.createJson(shardMapKey, [])
return []
}
}
export const writeShardMap = async (datastore, indexDir, shardMap) =>
await datastore.updateJson(getShardMapKey(indexDir), shardMap)
export const getAllShardKeys = async (app, indexNode, indexDir) =>
await getShardKeysInRange(app, indexNode, indexDir)
export const getShardMapKey = indexDir => joinKey(indexDir, "shardMap.json")
export const getUnshardedIndexDataKey = indexDir =>
joinKey(indexDir, "index.csv")
export const createIndexFile = async (datastore, indexedDataKey, index) => {
if (isShardedIndex(index)) {
const indexDir = getParentKey(indexedDataKey)
const shardMap = await getShardMap(datastore, indexDir)
shardMap.push(shardNameFromKey(indexedDataKey))
await writeShardMap(datastore, indexDir, shardMap)
}
await datastore.createFile(indexedDataKey, "")
}
export const shardNameFromKey = key =>
$(key, [splitKey, last]).replace(".csv", "")
export const getIndexKey_BasedOnDecendant = (decendantKey, indexNode) => {
if (isGlobalIndex(indexNode)) {
return `${indexNode.nodeKey()}`
}
const indexedDataParentKey = getActualKeyOfParent(
indexNode.parent().nodeKey(),
decendantKey
)
return joinKey(indexedDataParentKey, indexNode.name)
}

29
packages/core/src/recordApi/customId.js
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import { find, take, union } from "lodash/fp"
import { getFlattenedHierarchy } from "../templateApi/hierarchy"
import { $, splitKey, joinKey } from "../common"
import { NotFoundError } from "../common/errors"
export const customId = app => (nodeName, id) => {
const node = $(app.hierarchy, [
getFlattenedHierarchy,
find(n => n.name === nodeName),
])
if (!node) throw new NotFoundError(`Cannot find node ${nodeName}`)
return `${node.nodeId}-${id}`
}
export const setCustomId = app => (record, id) => {
record.id = customId(app)(record.type, id)
const keyParts = splitKey(record.key)
record.key = $(keyParts, [
take(keyParts.length - 1),
union([record.id]),
joinKey,
])
return record
}

35
packages/core/src/recordApi/delete.js
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@ -1,35 +0,0 @@
import { safeKey, apiWrapper, events, joinKey } from "../common"
import { _load } from "./load"
import { _deleteCollection } from "../collectionApi/delete"
import { getExactNodeForKey } from "../templateApi/hierarchy"
import { transactionForDeleteRecord } from "../transactions/create"
import { permission } from "../authApi/permissions"
import { getRecordInfo } from "./recordInfo"
export const deleteRecord = (app, disableCleanup = false) => async key => {
key = safeKey(key)
return apiWrapper(
app,
events.recordApi.delete,
permission.deleteRecord.isAuthorized(key),
{ key },
_deleteRecord,
app,
key,
disableCleanup
)
}
// called deleteRecord because delete is a keyword
export const _deleteRecord = async (app, key) => {
const recordInfo = getRecordInfo(app.hierarchy, key)
key = recordInfo.key
const node = getExactNodeForKey(app.hierarchy)(key)
for (const collectionRecord of node.children) {
const collectionKey = joinKey(key, collectionRecord.collectionName)
await _deleteCollection(app, collectionKey, true)
}
await app.datastore.deleteFile(key)
}

31
packages/core/src/recordApi/downloadFile.js
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@ -1,31 +0,0 @@
import { apiWrapper, events, isNothing } from "../common"
import { permission } from "../authApi/permissions"
import { safeGetFullFilePath } from "./uploadFile"
import { BadRequestError } from "../common/errors"
import { getRecordInfo } from "./recordInfo"
export const downloadFile = app => async (recordKey, relativePath) =>
apiWrapper(
app,
events.recordApi.uploadFile,
permission.readRecord.isAuthorized(recordKey),
{ recordKey, relativePath }, //remove dupe key 'recordKey' from object
_downloadFile,
app,
recordKey,
relativePath
)
const _downloadFile = async (app, recordKey, relativePath) => {
if (isNothing(recordKey)) {
throw new BadRequestError("Record Key not supplied")
}
if (isNothing(relativePath)) {
throw new BadRequestError("file path not supplied")
}
const { dir } = getRecordInfo(app.hierarchy, recordKey)
return await app.datastore.readableFileStream(
safeGetFullFilePath(dir, relativePath)
)
}

76
packages/core/src/recordApi/getContext.js
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@ -1,76 +0,0 @@
import { map, isString, has, some } from "lodash/fp"
import {
getExactNodeForKey,
findField,
getNode,
isGlobalIndex,
} from "../templateApi/hierarchy"
import { listItems } from "../indexApi/listItems"
import { $, apiWrapperSync, events, safeKey } from "../common"
import { getIndexKey_BasedOnDecendant } from "../indexing/sharding"
import { permission } from "../authApi/permissions"
export const getContext = app => recordKey => {
recordKey = safeKey(recordKey)
return apiWrapperSync(
app,
events.recordApi.getContext,
permission.readRecord.isAuthorized(recordKey),
{ recordKey },
_getContext,
app,
recordKey
)
}
export const _getContext = (app, recordKey) => {
recordKey = safeKey(recordKey)
const recordNode = getExactNodeForKey(app.hierarchy)(recordKey)
const cachedReferenceIndexes = {}
const lazyLoadReferenceIndex = async typeOptions => {
if (!has(typeOptions.indexNodeKey)(cachedReferenceIndexes)) {
cachedReferenceIndexes[typeOptions.indexNodeKey] = {
typeOptions,
data: await readReferenceIndex(app, recordKey, typeOptions),
}
}
return cachedReferenceIndexes[typeOptions.indexNodeKey]
}
const getTypeOptions = typeOptions_or_fieldName =>
isString(typeOptions_or_fieldName)
? findField(recordNode, typeOptions_or_fieldName).typeOptions
: typeOptions_or_fieldName
return {
referenceExists: async (typeOptions_or_fieldName, key) => {
const typeOptions = getTypeOptions(typeOptions_or_fieldName)
const { data } = await lazyLoadReferenceIndex(typeOptions)
return some(i => i.key === key)(data)
},
referenceOptions: async typeOptions_or_fieldName => {
const typeOptions = getTypeOptions(typeOptions_or_fieldName)
const { data } = await lazyLoadReferenceIndex(typeOptions)
return data
},
recordNode,
}
}
const readReferenceIndex = async (app, recordKey, typeOptions) => {
const indexNode = getNode(app.hierarchy, typeOptions.indexNodeKey)
const indexKey = isGlobalIndex(indexNode)
? indexNode.nodeKey()
: getIndexKey_BasedOnDecendant(recordKey, indexNode)
const items = await listItems(app)(indexKey)
return $(items, [
map(i => ({
key: i.key,
value: i[typeOptions.displayValue],
})),
])
}

51
packages/core/src/recordApi/getNew.js
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@ -1,51 +0,0 @@
import { keyBy, mapValues } from "lodash/fp"
import { generate } from "shortid"
import {
getNodeForCollectionPath,
isSingleRecord,
} from "../templateApi/hierarchy"
import { getNewFieldValue } from "../types"
import { $, joinKey, safeKey, apiWrapperSync, events } from "../common"
import { permission } from "../authApi/permissions"
export const getNew = app => (collectionKey, recordTypeName) => {
const recordNode = getRecordNode(app, collectionKey, recordTypeName)
collectionKey = safeKey(collectionKey)
return apiWrapperSync(
app,
events.recordApi.getNew,
permission.createRecord.isAuthorized(recordNode.nodeKey()),
{ collectionKey, recordTypeName },
_getNew,
recordNode,
collectionKey
)
}
/**
* Constructs a record object that can be saved to the backend.
* @param {*} recordNode - record
* @param {*} collectionKey - nested collection key that the record will be saved to.
*/
export const _getNew = (recordNode, collectionKey) =>
constructRecord(recordNode, getNewFieldValue, collectionKey)
const getRecordNode = (app, collectionKey) => {
collectionKey = safeKey(collectionKey)
return getNodeForCollectionPath(app.hierarchy)(collectionKey)
}
export const getNewChild = app => (recordKey, collectionName, recordTypeName) =>
getNew(app)(joinKey(recordKey, collectionName), recordTypeName)
export const constructRecord = (recordNode, getFieldValue, collectionKey) => {
const record = $(recordNode.fields, [keyBy("name"), mapValues(getFieldValue)])
record.id = `${recordNode.nodeId}-${generate()}`
record.key = isSingleRecord(recordNode)
? joinKey(collectionKey, recordNode.name)
: joinKey(collectionKey, record.id)
record.isNew = true
record.type = recordNode.name
return record
}

27
packages/core/src/recordApi/index.js
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@ -1,27 +0,0 @@
import { getNew, getNewChild } from "./getNew"
import { load } from "./load"
import { validate } from "./validate"
import { getContext } from "./getContext"
import { save } from "./save"
import { deleteRecord } from "./delete"
import { uploadFile } from "./uploadFile"
import { downloadFile } from "./downloadFile"
import { customId, setCustomId } from "./customId"
const api = app => ({
getNew: getNew(app),
getNewChild: getNewChild(app),
save: save(app),
load: load(app),
delete: deleteRecord(app, false),
validate: validate(app),
getContext: getContext(app),
uploadFile: uploadFile(app),
downloadFile: downloadFile(app),
customId: customId(app),
setCustomId: setCustomId(app),
})
export const getRecordApi = app => api(app)
export default getRecordApi

79
packages/core/src/recordApi/initialiseChildren.js
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@ -1,79 +0,0 @@
import { isString, flatten, map, filter } from "lodash/fp"
import { initialiseChildCollections } from "../collectionApi/initialise"
import { _loadFromInfo } from "./load"
import { $, joinKey } from "../common"
import {
getFlattenedHierarchy,
isModel,
getNode,
isTopLevelRecord,
fieldReversesReferenceToNode,
} from "../templateApi/hierarchy"
import { initialiseIndex } from "../indexing/initialiseIndex"
import { getRecordInfo } from "./recordInfo"
import { getAllIdsIterator } from "../indexing/allIds"
export const initialiseChildren = async (app, recordInfoOrKey) => {
const recordInfo = isString(recordInfoOrKey)
? getRecordInfo(app.hierarchy, recordInfoOrKey)
: recordInfoOrKey
await initialiseReverseReferenceIndexes(app, recordInfo)
await initialiseAncestorIndexes(app, recordInfo)
await initialiseChildCollections(app, recordInfo)
}
export const initialiseChildrenForNode = async (app, recordNode) => {
if (isTopLevelRecord(recordNode)) {
await initialiseChildren(app, recordNode.nodeKey())
return
}
const iterate = await getAllIdsIterator(app)(
recordNode.parent().collectionNodeKey()
)
let iterateResult = await iterate()
while (!iterateResult.done) {
const { result } = iterateResult
for (const id of result.ids) {
const initialisingRecordKey = joinKey(result.collectionKey, id)
await initialiseChildren(app, initialisingRecordKey)
}
iterateResult = await iterate()
}
}
const initialiseAncestorIndexes = async (app, recordInfo) => {
for (const index of recordInfo.recordNode.indexes) {
const indexKey = recordInfo.child(index.name)
if (!(await app.datastore.exists(indexKey))) {
await initialiseIndex(app.datastore, recordInfo.dir, index)
}
}
}
const initialiseReverseReferenceIndexes = async (app, recordInfo) => {
const indexNodes = $(
fieldsThatReferenceThisModel(app, recordInfo.recordNode),
[
map(f =>
$(f.typeOptions.reverseIndexNodeKeys, [
map(n => getNode(app.hierarchy, n)),
])
),
flatten,
]
)
for (const indexNode of indexNodes) {
await initialiseIndex(app.datastore, recordInfo.dir, indexNode)
}
}
const fieldsThatReferenceThisModel = (app, recordNode) =>
$(app.hierarchy, [
getFlattenedHierarchy,
filter(isModel),
map(n => n.fields),
flatten,
filter(fieldReversesReferenceToNode(recordNode)),
])

77
packages/core/src/recordApi/load.js
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@ -1,77 +0,0 @@
import { keyBy, mapValues, filter, map, includes, last } from "lodash/fp"
import { getNode, getExactNodeForKey } from "../templateApi/hierarchy"
import { safeParseField } from "../types"
import {
$,
splitKey,
safeKey,
isNonEmptyString,
apiWrapper,
events,
joinKey,
} from "../common"
import { mapRecord } from "../indexing/evaluate"
import { permission } from "../authApi/permissions"
export const _loadFromInfo = () => {};
export const getRecordFileName = key => joinKey(key, "record.json")
export const load = app => async key => {
key = safeKey(key)
return apiWrapper(
app,
events.recordApi.load,
permission.readRecord.isAuthorized(key),
{ key },
_load,
app,
key
)
}
export const _load = async (app, key, keyStack = []) => {
const recordNode = getExactNodeForKey(app.hierarchy)(key)
const storedData = await app.datastore.loadJson(key)
const loadedRecord = $(recordNode.fields, [
keyBy("name"),
mapValues(f => safeParseField(f, storedData)),
])
const newKeyStack = [...keyStack, key]
const references = $(recordNode.fields, [
filter(
f =>
f.type === "reference" &&
isNonEmptyString(loadedRecord[f.name].key) &&
!includes(loadedRecord[f.name].key)(newKeyStack)
),
map(f => ({
promise: _load(app, loadedRecord[f.name].key, newKeyStack),
index: getNode(app.hierarchy, f.typeOptions.indexNodeKey),
field: f,
})),
])
if (references.length > 0) {
const refRecords = await Promise.all(map(p => p.promise)(references))
for (const ref of references) {
loadedRecord[ref.field.name] = mapRecord(
refRecords[references.indexOf(ref)],
ref.index
)
}
}
loadedRecord._rev = storedData._rev
loadedRecord._id = storedData._id
loadedRecord.key = key
loadedRecord.id = $(key, [splitKey, last])
loadedRecord.type = recordNode.name
return loadedRecord
}
export default load

112
packages/core/src/recordApi/recordInfo.js
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@ -1,112 +0,0 @@
import {
getExactNodeForKey,
getActualKeyOfParent,
isRoot,
isSingleRecord,
getNodeForCollectionPath,
} from "../templateApi/hierarchy"
import { reduce, find, filter } from "lodash/fp"
import { $, getFileFromKey, joinKey, safeKey, keySep } from "../common"
import { folderStructureArray, allIdChars } from "../indexing/allIds"
export const getRecordInfo = (hierarchy, key) => {
const recordNode = getExactNodeForKey(hierarchy)(key)
const pathInfo = getRecordDirectory(recordNode, key)
const dir = joinKey(pathInfo.base, ...pathInfo.subdirs)
return {
recordJson: recordJson(dir),
files: files(dir),
child: name => joinKey(dir, name),
key: safeKey(key),
recordNode,
pathInfo,
dir,
}
}
export const getCollectionDir = (hierarchy, collectionKey) => {
const recordNode = getNodeForCollectionPath(hierarchy)(collectionKey)
const dummyRecordKey = joinKey(collectionKey, "1-abcd")
const pathInfo = getRecordDirectory(recordNode, dummyRecordKey)
return pathInfo.base
}
const recordJson = dir => joinKey(dir, "record.json")
const files = dir => joinKey(dir, "files")
const getRecordDirectory = (recordNode, key) => {
const id = getFileFromKey(key)
const traverseParentKeys = (n, parents = []) => {
if (isRoot(n)) return parents
const k = getActualKeyOfParent(n.nodeKey(), key)
const thisNodeDir = {
node: n,
relativeDir: joinKey(recordRelativeDirectory(n, getFileFromKey(k))),
}
return traverseParentKeys(n.parent(), [thisNodeDir, ...parents])
}
const parentDirs = $(recordNode.parent(), [
traverseParentKeys,
reduce((key, item) => {
return joinKey(key, item.node.collectionName, item.relativeDir)
}, keySep),
])
const subdirs = isSingleRecord(recordNode)
? []
: recordRelativeDirectory(recordNode, id)
const base = isSingleRecord(recordNode)
? joinKey(parentDirs, recordNode.name)
: joinKey(parentDirs, recordNode.collectionName)
return {
subdirs,
base,
}
}
const recordRelativeDirectory = (recordNode, id) => {
const folderStructure = folderStructureArray(recordNode)
const strippedId = id.substring(recordNode.nodeId.toString().length + 1)
const subfolders = $(folderStructure, [
reduce(
(result, currentCount) => {
result.folders.push(
folderForChar(strippedId[result.level], currentCount)
)
return { level: result.level + 1, folders: result.folders }
},
{ level: 0, folders: [] }
),
f => f.folders,
filter(f => !!f),
])
return [recordNode.nodeId.toString(), ...subfolders, id]
}
const folderForChar = (char, folderCount) =>
folderCount === 1
? ""
: $(folderCount, [idFoldersForFolderCount, find(f => f.includes(char))])
const idFoldersForFolderCount = folderCount => {
const charRangePerShard = 64 / folderCount
const idFolders = []
let index = 0
let currentIdsShard = ""
while (index < 64) {
currentIdsShard += allIdChars[index]
if ((index + 1) % charRangePerShard === 0) {
idFolders.push(currentIdsShard)
currentIdsShard = ""
}
index++
}
return idFolders
}

65
packages/core/src/recordApi/save.js
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@ -1,65 +0,0 @@
import { cloneDeep } from "lodash/fp"
import { validate } from "./validate"
import { _load } from "./load"
import { apiWrapper, events } from "../common"
import { permission } from "../authApi/permissions"
import { BadRequestError } from "../common/errors"
import { getExactNodeForKey } from "../templateApi/hierarchy"
export const save = app => async (record, context) =>
apiWrapper(
app,
events.recordApi.save,
record._rev
? permission.updateRecord.isAuthorized(record.key)
: permission.createRecord.isAuthorized(record.key),
{ record },
_save,
app,
record,
context,
false
)
export const _save = async (app, record, context, skipValidation = false) => {
const recordClone = cloneDeep(record)
if (!skipValidation) {
const validationResult = await validate(app)(recordClone, context)
if (!validationResult.isValid) {
await app.publish(events.recordApi.save.onInvalid, {
record,
validationResult,
})
throw new BadRequestError(
`Save : Record Invalid : ${JSON.stringify(validationResult.errors)}`
)
}
}
const recordNode = getExactNodeForKey(app.hierarchy)(record.key)
recordClone.nodeKey = recordNode.nodeKey()
if (!record._rev) {
if (!recordNode) throw new Error("Cannot find node for " + record.key)
// FILES
// await app.datastore.createFolder(files)
await app.datastore.createJson(record.key, recordClone)
await app.publish(events.recordApi.save.onRecordCreated, {
record: recordClone,
})
} else {
const oldRecord = await _load(app, record.key)
await app.datastore.updateJson(record.key, recordClone)
await app.publish(events.recordApi.save.onRecordUpdated, {
old: oldRecord,
new: recordClone,
})
}
// TODO: use nano.head to get _rev (saves loading whole doc)
const savedResult = await app.datastore.loadFile(record.key)
recordClone._rev = savedResult._rev
return recordClone
}

146
packages/core/src/recordApi/uploadFile.js
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@ -1,146 +0,0 @@
import { includes, filter, map, some } from "lodash/fp"
import { generate } from "shortid"
import { _loadFromInfo } from "./load"
import {
apiWrapper,
events,
splitKey,
$,
joinKey,
isNothing,
tryAwaitOrIgnore,
} from "../common"
import { getExactNodeForKey } from "../templateApi/hierarchy"
import { permission } from "../authApi/permissions"
import { isLegalFilename } from "../types/file"
import { BadRequestError, ForbiddenError } from "../common/errors"
import { getRecordInfo } from "./recordInfo"
export const uploadFile = app => async (
recordKey,
readableStream,
relativeFilePath
) =>
apiWrapper(
app,
events.recordApi.uploadFile,
permission.updateRecord.isAuthorized(recordKey),
{ recordKey, readableStream, relativeFilePath },
_uploadFile,
app,
recordKey,
readableStream,
relativeFilePath
)
const _uploadFile = async (
app,
recordKey,
readableStream,
relativeFilePath
) => {
if (isNothing(recordKey)) {
throw new BadRequestError("Record Key not supplied")
}
if (isNothing(relativeFilePath)) {
throw new BadRequestError("file path not supplied")
}
if (!isLegalFilename(relativeFilePath)) {
throw new BadRequestError("Illegal filename")
}
const recordInfo = getRecordInfo(app.hierarchy, recordKey)
const record = await _loadFromInfo(app, recordInfo)
const fullFilePath = safeGetFullFilePath(recordInfo.dir, relativeFilePath)
const tempFilePath = `${fullFilePath}_${generate()}.temp`
const outputStream = await app.datastore.writableFileStream(tempFilePath)
return new Promise((resolve, reject) => {
readableStream.pipe(outputStream)
outputStream.on("error", reject)
outputStream.on("finish", resolve)
})
.then(() => app.datastore.getFileSize(tempFilePath))
.then(size => {
const isExpectedFileSize = checkFileSizeAgainstFields(
app,
record,
relativeFilePath,
size
)
if (!isExpectedFileSize) {
throw new BadRequestError(
`Fields for ${relativeFilePath} do not have expected size.`
)
}
})
.then(() => tryAwaitOrIgnore(app.datastore.deleteFile, fullFilePath))
.then(() => app.datastore.renameFile(tempFilePath, fullFilePath))
}
const checkFileSizeAgainstFields = (
app,
record,
relativeFilePath,
expectedSize
) => {
const recordNode = getExactNodeForKey(app.hierarchy)(record.key)
const incorrectFileFields = $(recordNode.fields, [
filter(
f =>
f.type === "file" &&
record[f.name].relativePath === relativeFilePath &&
record[f.name].size !== expectedSize
),
map(f => f.name),
])
const incorrectFileArrayFields = $(recordNode.fields, [
filter(
a =>
a.type === "array<file>" &&
$(record[a.name], [
some(
f =>
record[f.name].relativePath === relativeFilePath &&
record[f.name].size !== expectedSize
),
])
),
map(f => f.name),
])
const incorrectFields = [...incorrectFileFields, ...incorrectFileArrayFields]
if (incorrectFields.length > 0) {
return false
}
return true
}
export const safeGetFullFilePath = (recordDir, relativeFilePath) => {
const naughtyUser = () => {
throw new ForbiddenError("naughty naughty")
}
if (relativeFilePath.startsWith("..")) naughtyUser()
const pathParts = splitKey(relativeFilePath)
if (includes("..")(pathParts)) naughtyUser()
const recordKeyParts = splitKey(recordDir)
const fullPathParts = [
...recordKeyParts,
"files",
...filter(p => p !== ".")(pathParts),
]
return joinKey(fullPathParts)
}

91
packages/core/src/recordApi/validate.js
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import { map, reduce, filter, isEmpty, flatten, each } from "lodash/fp"
import { compileCode } from "../common/compileCode"
import _ from "lodash"
import { getExactNodeForKey } from "../templateApi/hierarchy"
import { validateFieldParse, validateTypeConstraints } from "../types"
import { $, isNothing, isNonEmptyString } from "../common"
import { _getContext } from "./getContext"
const fieldParseError = (fieldName, value) => ({
fields: [fieldName],
message: `Could not parse field ${fieldName}:${value}`,
})
const validateAllFieldParse = (record, recordNode) =>
$(recordNode.fields, [
map(f => ({ name: f.name, parseResult: validateFieldParse(f, record) })),
reduce((errors, f) => {
if (f.parseResult.success) return errors
errors.push(fieldParseError(f.name, f.parseResult.value))
return errors
}, []),
])
const validateAllTypeConstraints = async (record, recordNode, context) => {
const errors = []
for (const field of recordNode.fields) {
$(await validateTypeConstraints(field, record, context), [
filter(isNonEmptyString),
map(m => ({ message: m, fields: [field.name] })),
each(e => errors.push(e)),
])
}
return errors
}
const runRecordValidationRules = (record, recordNode) => {
const runValidationRule = rule => {
const isValid = compileCode(rule.expressionWhenValid)
const expressionContext = { record, _ }
return isValid(expressionContext)
? { valid: true }
: {
valid: false,
fields: rule.invalidFields,
message: rule.messageWhenInvalid,
}
}
return $(recordNode.validationRules, [
map(runValidationRule),
flatten,
filter(r => r.valid === false),
map(r => ({ fields: r.fields, message: r.message })),
])
}
export const validate = app => async (record, context) => {
context = isNothing(context) ? _getContext(app, record.key) : context
const recordNode = getExactNodeForKey(app.hierarchy)(record.key)
const fieldParseFails = validateAllFieldParse(record, recordNode)
// non parsing would cause further issues - exit here
if (!isEmpty(fieldParseFails)) {
return { isValid: false, errors: fieldParseFails }
}
const recordValidationRuleFails = runRecordValidationRules(record, recordNode)
const typeContraintFails = await validateAllTypeConstraints(
record,
recordNode,
context
)
if (
isEmpty(fieldParseFails) &&
isEmpty(recordValidationRuleFails) &&
isEmpty(typeContraintFails)
) {
return { isValid: true, errors: [] }
}
return {
isValid: false,
errors: _.union(
fieldParseFails,
typeContraintFails,
recordValidationRuleFails
),
}
}

54
packages/core/src/templateApi/canDeleteIndex.js
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import {
findRoot,
getFlattenedHierarchy,
fieldReversesReferenceToIndex,
isModel,
} from "./hierarchy"
import { $ } from "../common"
import { map, filter, reduce } from "lodash/fp"
export const canDeleteIndex = indexNode => {
const flatHierarchy = $(indexNode, [findRoot, getFlattenedHierarchy])
const reverseIndexes = $(flatHierarchy, [
filter(isModel),
reduce((obj, r) => {
for (let field of r.fields) {
if (fieldReversesReferenceToIndex(indexNode)(field)) {
obj.push({ ...field, record: r })
}
}
return obj
}, []),
map(
f =>
`field "${f.name}" on record "${f.record.name}" uses this index as a reference`
),
])
const lookupIndexes = $(flatHierarchy, [
filter(isModel),
reduce((obj, r) => {
for (let field of r.fields) {
if (
field.type === "reference" &&
field.typeOptions.indexNodeKey === indexNode.nodeKey()
) {
obj.push({ ...field, record: r })
}
}
return obj
}, []),
map(
f =>
`field "${f.name}" on record "${f.record.name}" uses this index as a lookup`
),
])
const errors = [...reverseIndexes, ...lookupIndexes]
return {
canDelete: errors.length === 0,
errors,
}
}

45
packages/core/src/templateApi/canDeleteModel.js
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import {
findRoot,
getFlattenedHierarchy,
fieldReversesReferenceToIndex,
isModel,
isAncestorIndex,
isAncestor,
} from "./hierarchy"
import { $ } from "../common"
import { map, filter, includes } from "lodash/fp"
export const canDeleteModel = modelNode => {
const flatHierarchy = $(modelNode, [findRoot, getFlattenedHierarchy])
const ancestors = $(flatHierarchy, [filter(isAncestor(modelNode))])
const belongsToAncestor = i => ancestors.includes(i.parent())
const errorsForNode = node => {
const errorsThisNode = $(flatHierarchy, [
filter(
i =>
isAncestorIndex(i) &&
belongsToAncestor(i) &&
includes(node.nodeId)(i.allowedModelNodeIds)
),
map(
i =>
`index "${i.name}" indexes this model. Please remove the model from the index, or delete the index`
),
])
for (let child of node.children) {
for (let err of errorsForNode(child)) {
errorsThisNode.push(err)
}
}
return errorsThisNode
}
const errors = errorsForNode(modelNode)
return { errors, canDelete: errors.length === 0 }
}

22
packages/core/src/templateApi/createActions.js
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export const createTrigger = () => ({
actionName: "",
eventName: "",
// function, has access to event context,
// returns object that is used as parameter to action
// only used if triggered by event
optionsCreator: "",
// action runs if true,
// has access to event context
condition: "",
})
export const createAction = () => ({
name: "",
behaviourSource: "",
// name of function in actionSource
behaviourName: "",
// parameter passed into behaviour.
// any other parms passed at runtime e.g.
// by trigger, or manually, will be merged into this
initialOptions: {},
})

242
packages/core/src/templateApi/createNodes.js
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import { each, find } from "lodash"
import { map, max, constant } from "lodash/fp"
import {
switchCase,
defaultCase,
joinKey,
$,
isNothing,
isSomething,
} from "../common"
import {
isIndex,
isRoot,
isSingleRecord,
isCollectionRecord,
isModel,
isaggregateGroup,
getFlattenedHierarchy,
} from "./hierarchy"
import { all } from "../types"
import { BadRequestError } from "../common/errors"
export const createNodeErrors = {
indexCannotBeParent: "Index template cannot be a parent",
allNonRootNodesMustHaveParent: "Only the root node may have no parent",
indexParentMustBeRecordOrRoot:
"An index may only have a record or root as a parent",
aggregateParentMustBeAnIndex: "aggregateGroup parent must be an index",
}
const pathRegxMaker = node => () =>
node.nodeKey().replace(/{id}/g, "[a-zA-Z0-9_-]+")
const nodeKeyMaker = node => () =>
switchCase(
[
n => isModel(n) && !isSingleRecord(n),
n =>
joinKey(
node.parent().nodeKey(),
node.collectionName,
`${n.nodeId}-{id}`
),
],
[isRoot, constant("/")],
[defaultCase, n => joinKey(node.parent().nodeKey(), n.name)]
)(node)
const nodeNameMaker = node => () =>
isRoot(node)
? "/"
: joinKey(node.parent().nodeName(), node.name)
const validate = parent => node => {
if (
isIndex(node) &&
isSomething(parent) &&
!isRoot(parent) &&
!isModel(parent)
) {
throw new BadRequestError(createNodeErrors.indexParentMustBeRecordOrRoot)
}
if (isaggregateGroup(node) && isSomething(parent) && !isIndex(parent)) {
throw new BadRequestError(createNodeErrors.aggregateParentMustBeAnIndex)
}
if (isNothing(parent) && !isRoot(node)) {
throw new BadRequestError(createNodeErrors.allNonRootNodesMustHaveParent)
}
return node
}
const construct = parent => node => {
node.nodeKey = nodeKeyMaker(node)
node.nodeName = nodeNameMaker(node)
node.pathRegx = pathRegxMaker(node)
node.parent = constant(parent)
node.isRoot = () =>
isNothing(parent) && node.name === "root" && node.type === "root"
if (isCollectionRecord(node)) {
node.collectionNodeKey = () =>
joinKey(parent.nodeKey(), node.collectionName)
node.collectionPathRegx = () =>
joinKey(parent.pathRegx(), node.collectionName)
}
return node
}
const addToParent = obj => {
const parent = obj.parent()
if (isSomething(parent)) {
if (isIndex(obj)) {
// Q: why are indexes not children ?
// A: because they cannot have children of their own.
parent.indexes.push(obj)
} else if (isaggregateGroup(obj)) {
parent.aggregateGroups.push(obj)
} else {
parent.children.push(obj)
}
if (isModel(obj)) {
const defaultIndex = find(
parent.indexes,
i => i.name === `${parent.name}_index`
)
if (defaultIndex) {
defaultIndex.allowedModelNodeIds.push(obj.nodeId)
}
}
}
return obj
}
export const constructNode = (parent, obj) =>
$(obj, [construct(parent), validate(parent), addToParent])
const getNodeId = parentNode => {
// this case is handled better elsewhere
if (!parentNode) return null
const findRoot = n => (isRoot(n) ? n : findRoot(n.parent()))
const root = findRoot(parentNode)
return $(root, [getFlattenedHierarchy, map(n => n.nodeId), max]) + 1
}
export const constructHierarchy = (node, parent) => {
construct(parent)(node)
if (node.indexes) {
each(node.indexes, child => constructHierarchy(child, node))
}
if (node.aggregateGroups) {
each(node.aggregateGroups, child => constructHierarchy(child, node))
}
if (node.children && node.children.length > 0) {
each(node.children, child => constructHierarchy(child, node))
}
if (node.fields) {
each(node.fields, f =>
each(f.typeOptions, (val, key) => {
const def = all[f.type].optionDefinitions[key]
if (!def) {
// unknown typeOption
delete f.typeOptions[key]
} else {
f.typeOptions[key] = def.parse(val)
}
})
)
}
return node
}
export const getNewRootLevel = () =>
construct()({
name: "root",
type: "root",
children: [],
pathMaps: [],
indexes: [],
nodeId: 0,
})
const _getNewModelTemplate = (parent, name, createDefaultIndex, isSingle) => {
const nodeId = getNodeId(parent)
const node = constructNode(parent, {
name,
type: "record",
fields: [],
children: [],
validationRules: [],
nodeId: nodeId,
indexes: [],
estimatedRecordCount: isModel(parent) ? 500 : 1000000,
collectionName: (nodeId || "").toString(),
isSingle,
})
if (createDefaultIndex) {
const defaultIndex = getNewIndexTemplate(parent)
defaultIndex.name = `${name}_index`
defaultIndex.allowedModelNodeIds.push(node.nodeId)
}
return node
}
export const getNewModelTemplate = (
parent,
name = "",
createDefaultIndex = true
) => _getNewModelTemplate(parent, name, createDefaultIndex, false)
export const getNewSingleRecordTemplate = parent =>
_getNewModelTemplate(parent, "", false, true)
export const getNewIndexTemplate = (parent, type = "ancestor") =>
constructNode(parent, {
name: "",
type: "index",
map: "return {...record};",
filter: "",
indexType: type,
getShardName: "",
getSortKey: "record.id",
aggregateGroups: [],
allowedModelNodeIds: [],
nodeId: getNodeId(parent),
})
export const getNewAggregateGroupTemplate = index =>
constructNode(index, {
name: "",
type: "aggregateGroup",
groupBy: "",
aggregates: [],
condition: "",
nodeId: getNodeId(index),
})
export const getNewAggregateTemplate = set => {
const aggregatedValue = {
name: "",
aggregatedValue: "",
}
set.aggregates.push(aggregatedValue)
return aggregatedValue
}
export default {
getNewRootLevel,
getNewModelTemplate,
getNewIndexTemplate,
createNodeErrors,
constructHierarchy,
getNewAggregateGroupTemplate,
getNewAggregateTemplate,
}

30
packages/core/src/templateApi/deleteAllIndexFilesForNode.js
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@ -1,30 +0,0 @@
import { getAllIdsIterator } from "../indexing/allIds"
import { getRecordInfo } from "../recordApi/recordInfo"
import { isTopLevelIndex, getParentKey, getLastPartInKey } from "./hierarchy"
import { safeKey, joinKey } from "../common"
export const deleteAllIndexFilesForNode = async (app, indexNode) => {
if (isTopLevelIndex(indexNode)) {
await app.datastore.deleteFolder(indexNode.nodeKey())
return
}
const iterate = await getAllIdsIterator(app)(indexNode.parent().nodeKey())
let iterateResult = await iterate()
while (!iterateResult.done) {
const { result } = iterateResult
for (const id of result.ids) {
const deletingIndexKey = joinKey(result.collectionKey, id, indexNode.name)
await deleteIndexFolder(app, deletingIndexKey)
}
iterateResult = await iterate()
}
}
const deleteIndexFolder = async (app, indexKey) => {
indexKey = safeKey(indexKey)
const indexName = getLastPartInKey(indexKey)
const parentRecordKey = getParentKey(indexKey)
const recordInfo = getRecordInfo(app.hierarchy, parentRecordKey)
await app.datastore.deleteFolder(joinKey(recordInfo.dir, indexName))
}

33
packages/core/src/templateApi/deleteAllRecordsForNode.js
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import { getAllIdsIterator } from "../indexing/allIds"
import { getCollectionDir } from "../recordApi/recordInfo"
import { isTopLevelRecord, getCollectionKey } from "./hierarchy"
import { safeKey, joinKey } from "../common"
export const deleteAllRecordsForNode = async (app, recordNode) => {
if (isTopLevelRecord(recordNode)) {
await deleteRecordCollection(app, recordNode.collectionName)
return
}
const iterate = await getAllIdsIterator(app)(recordNode.parent().nodeKey())
let iterateResult = await iterate()
while (!iterateResult.done) {
const { result } = iterateResult
for (const id of result.ids) {
const deletingCollectionKey = joinKey(
result.collectionKey,
id,
recordNode.collectionName
)
await deleteRecordCollection(app, deletingCollectionKey)
}
iterateResult = await iterate()
}
}
const deleteRecordCollection = async (app, collectionKey) => {
collectionKey = safeKey(collectionKey)
await app.datastore.deleteFolder(
getCollectionDir(app.hierarchy, collectionKey)
)
}

9
packages/core/src/templateApi/deleteNodes.js
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@ -1,9 +0,0 @@
import { } from "../templateApi/heirarchy"
export const canDelete = () => {
/*
it must not exist on any index.allowedModelNodeIds
it must not exist on and reference type fields
these rules should apply to any child nodes , which will also be deleted
*/
}

203
packages/core/src/templateApi/diffHierarchy.js
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@ -1,203 +0,0 @@
import {
getFlattenedHierarchy,
isModel,
isIndex,
isAncestor,
} from "./hierarchy"
import { $, none } from "../common"
import { map, filter, some, find, difference } from "lodash/fp"
export const HierarchyChangeTypes = {
recordCreated: "Record Created",
recordDeleted: "Record Deleted",
recordRenamed: "Record Renamed",
recordFieldsChanged: "Record Fields Changed",
recordEstimatedRecordTypeChanged: "Record's Estimated Record Count Changed",
indexCreated: "Index Created",
indexDeleted: "Index Deleted",
indexChanged: "Index Changed",
}
export const diffHierarchy = (oldHierarchy, newHierarchy) => {
const oldHierarchyFlat = getFlattenedHierarchy(oldHierarchy)
const newHierarchyFlat = getFlattenedHierarchy(newHierarchy)
const createdRecords = findCreatedRecords(oldHierarchyFlat, newHierarchyFlat)
const deletedRecords = findDeletedRecords(oldHierarchyFlat, newHierarchyFlat)
return [
...createdRecords,
...deletedRecords,
...findRenamedRecords(oldHierarchyFlat, newHierarchyFlat),
...findRecordsWithFieldsChanged(oldHierarchyFlat, newHierarchyFlat),
...findRecordsWithEstimatedRecordTypeChanged(
oldHierarchyFlat,
newHierarchyFlat
),
...findCreatedIndexes(oldHierarchyFlat, newHierarchyFlat, createdRecords),
...findDeletedIndexes(oldHierarchyFlat, newHierarchyFlat, deletedRecords),
...findUpdatedIndexes(oldHierarchyFlat, newHierarchyFlat),
]
}
const changeItem = (type, oldNode, newNode) => ({
type,
oldNode,
newNode,
})
const findCreatedRecords = (oldHierarchyFlat, newHierarchyFlat) => {
const allCreated = $(newHierarchyFlat, [
filter(isModel),
filter(nodeDoesNotExistIn(oldHierarchyFlat)),
map(n => changeItem(HierarchyChangeTypes.recordCreated, null, n)),
])
return $(allCreated, [
filter(r => none(r2 => isAncestor(r.newNode)(r2.newNode))(allCreated)),
])
}
const findDeletedRecords = (oldHierarchyFlat, newHierarchyFlat) => {
const allDeleted = $(oldHierarchyFlat, [
filter(isModel),
filter(nodeDoesNotExistIn(newHierarchyFlat)),
map(n => changeItem(HierarchyChangeTypes.recordDeleted, n, null)),
])
return $(allDeleted, [
filter(r => none(r2 => isAncestor(r.oldNode)(r2.oldNode))(allDeleted)),
])
}
const findRenamedRecords = (oldHierarchyFlat, newHierarchyFlat) =>
$(oldHierarchyFlat, [
filter(isModel),
filter(nodeExistsIn(newHierarchyFlat)),
filter(
nodeChanged(
newHierarchyFlat,
(_new, old) => _new.collectionKey !== old.collectionKey
)
),
map(n =>
changeItem(
HierarchyChangeTypes.recordRenamed,
n,
findNodeIn(n, newHierarchyFlat)
)
),
])
const findRecordsWithFieldsChanged = (oldHierarchyFlat, newHierarchyFlat) =>
$(oldHierarchyFlat, [
filter(isModel),
filter(nodeExistsIn(newHierarchyFlat)),
filter(hasDifferentFields(newHierarchyFlat)),
map(n =>
changeItem(
HierarchyChangeTypes.recordFieldsChanged,
n,
findNodeIn(n, newHierarchyFlat)
)
),
])
const findRecordsWithEstimatedRecordTypeChanged = (
oldHierarchyFlat,
newHierarchyFlat
) =>
$(oldHierarchyFlat, [
filter(isModel),
filter(nodeExistsIn(newHierarchyFlat)),
filter(
nodeChanged(
newHierarchyFlat,
(_new, old) => _new.estimatedRecordCount !== old.estimatedRecordCount
)
),
map(n =>
changeItem(
HierarchyChangeTypes.recordEstimatedRecordTypeChanged,
n,
findNodeIn(n, newHierarchyFlat)
)
),
])
const findCreatedIndexes = (
oldHierarchyFlat,
newHierarchyFlat,
createdRecords
) => {
const allCreated = $(newHierarchyFlat, [
filter(isIndex),
filter(nodeDoesNotExistIn(oldHierarchyFlat)),
map(n => changeItem(HierarchyChangeTypes.indexCreated, null, n)),
])
return $(allCreated, [
filter(r => none(r2 => isAncestor(r.newNode)(r2.newNode))(createdRecords)),
])
}
const findDeletedIndexes = (
oldHierarchyFlat,
newHierarchyFlat,
deletedRecords
) => {
const allDeleted = $(oldHierarchyFlat, [
filter(isIndex),
filter(nodeDoesNotExistIn(newHierarchyFlat)),
map(n => changeItem(HierarchyChangeTypes.indexDeleted, n, null)),
])
return $(allDeleted, [
filter(r => none(r2 => isAncestor(r.oldNode)(r2.oldNode))(deletedRecords)),
])
}
const findUpdatedIndexes = (oldHierarchyFlat, newHierarchyFlat) =>
$(oldHierarchyFlat, [
filter(isIndex),
filter(nodeExistsIn(newHierarchyFlat)),
filter(nodeChanged(newHierarchyFlat, indexHasChanged)),
map(n =>
changeItem(
HierarchyChangeTypes.indexChanged,
n,
findNodeIn(n, newHierarchyFlat)
)
),
])
const hasDifferentFields = otherFlatHierarchy => record1 => {
const record2 = findNodeIn(record1, otherFlatHierarchy)
if (record1.fields.length !== record2.fields.length) return true
for (let f1 of record1.fields) {
if (none(isFieldSame(f1))(record2.fields)) return true
}
return false
}
const indexHasChanged = (_new, old) =>
_new.map !== old.map ||
_new.filter !== old.filter ||
_new.getShardName !== old.getShardName ||
difference(_new.allowedModelNodeIds)(old.allowedModelNodeIds).length > 0
const isFieldSame = f1 => f2 => f1.name === f2.name && f1.type === f2.type
const nodeDoesNotExistIn = inThis => node =>
none(n => n.nodeId === node.nodeId)(inThis)
const nodeExistsIn = inThis => node =>
some(n => n.nodeId === node.nodeId)(inThis)
const nodeChanged = (inThis, isChanged) => node =>
some(n => n.nodeId === node.nodeId && isChanged(n, node))(inThis)
const findNodeIn = (node, inThis) => find(n => n.nodeId === node.nodeId)(inThis)

96
packages/core/src/templateApi/fields.js
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@ -1,96 +0,0 @@
import { some, map, filter, keys, includes, countBy, flatten } from "lodash/fp"
import {
isSomething,
$,
isNonEmptyString,
isNothingOrEmpty,
isNothing,
} from "../common"
import { all, getDefaultOptions } from "../types"
import { applyRuleSet, makerule } from "../common/validationCommon"
import { BadRequestError } from "../common/errors"
import { generate } from "shortid"
export const fieldErrors = {
AddFieldValidationFailed: "Add field validation: ",
}
export const allowedTypes = () => keys(all)
export const getNewField = type => ({
id: generate(),
name: "", // how field is referenced internally
type,
typeOptions: getDefaultOptions(type),
label: "", // how field is displayed
getInitialValue: "default", // function that gets value when initially created
getUndefinedValue: "default", // function that gets value when field undefined on record
})
const fieldRules = allFields => [
makerule("name", "field name is not set", f => isNonEmptyString(f.name)),
makerule("type", "field type is not set", f => isNonEmptyString(f.type)),
makerule("label", "field label is not set", f => isNonEmptyString(f.label)),
makerule("getInitialValue", "getInitialValue function is not set", f =>
isNonEmptyString(f.getInitialValue)
),
makerule("getUndefinedValue", "getUndefinedValue function is not set", f =>
isNonEmptyString(f.getUndefinedValue)
),
makerule(
"name",
"field name is duplicated",
f => isNothingOrEmpty(f.name) || countBy("name")(allFields)[f.name] === 1
),
makerule(
"type",
"type is unknown",
f => isNothingOrEmpty(f.type) || some(t => f.type === t)(allowedTypes())
),
]
const typeOptionsRules = field => {
const type = all[field.type]
if (isNothing(type)) return []
const def = optName => type.optionDefinitions[optName]
return $(field.typeOptions, [
keys,
filter(o => isSomething(def(o)) && isSomething(def(o).isValid)),
map(o =>
makerule(`typeOptions.${o}`, `${def(o).requirementDescription}`, field =>
def(o).isValid(field.typeOptions[o])
)
),
])
}
export const validateField = allFields => field => {
const everySingleField = includes(field)(allFields)
? allFields
: [...allFields, field]
return applyRuleSet([
...fieldRules(everySingleField),
...typeOptionsRules(field),
])(field)
}
export const validateAllFields = recordNode =>
$(recordNode.fields, [map(validateField(recordNode.fields)), flatten])
export const addField = (recordTemplate, field) => {
if (isNothingOrEmpty(field.label)) {
field.label = field.name
}
const validationMessages = validateField([...recordTemplate.fields, field])(
field
)
if (validationMessages.length > 0) {
const errors = map(m => m.error)(validationMessages)
throw new BadRequestError(
`${fieldErrors.AddFieldValidationFailed} ${errors.join(", ")}`
)
}
recordTemplate.fields.push(field)
}

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packages/core/src/templateApi/getApplicationDefinition.js
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import { appDefinitionFile } from "../common"
import { constructHierarchy } from "./createNodes"
export const getApplicationDefinition = datastore => async () => {
const exists = await datastore.exists(appDefinitionFile)
if (!exists) throw new Error("Application definition does not exist")
const appDefinition = await datastore.loadJson(appDefinitionFile)
appDefinition.hierarchy = constructHierarchy(appDefinition.hierarchy)
return appDefinition
}

3
packages/core/src/templateApi/getBehaviourSources.js
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export const getBehaviourSources = async datastore => {
await datastore.loadFile("/.config/behaviourSources.js")
}

32
packages/core/src/templateApi/getCouchDbMapFunction.js
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import { includes } from "lodash/fp"
export const getCouchDbView = (hierarchy, indexNode) => {
const filter = codeAsFunction("filter", indexNode.filter)
const map = codeAsFunction("map", indexNode.map)
const allowedIdsFilter
const includeDocs = !map
const couchDbMap = ``
}
const codeAsFunction = (name, code) => {
if ((code || "").trim().length === 0) return
let safeCode
if (includes("return ")(code)) {
safeCode = code
} else {
let trimmed = code.trim()
trimmed = trimmed.endsWith(";")
? trimmed.substring(0, trimmed.length - 1)
: trimmed
safeCode = `return (${trimmed})`
}
return `function ${name}() {
${safeCode}
}`
}

290
packages/core/src/templateApi/hierarchy.js
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import {
find,
constant,
map,
last,
first,
split,
intersection,
take,
union,
includes,
filter,
some,
} from "lodash/fp"
import {
$,
switchCase,
isNothing,
isSomething,
defaultCase,
splitKey,
isNonEmptyString,
joinKey,
getHashCode,
} from "../common"
import { indexTypes } from "./indexes"
export const getFlattenedHierarchy = (appHierarchy, useCached = true) => {
if (isSomething(appHierarchy.getFlattenedHierarchy) && useCached) {
return appHierarchy.getFlattenedHierarchy()
}
const flattenHierarchy = (currentNode, flattened) => {
flattened.push(currentNode)
if (
(!currentNode.children || currentNode.children.length === 0) &&
(!currentNode.indexes || currentNode.indexes.length === 0) &&
(!currentNode.aggregateGroups || currentNode.aggregateGroups.length === 0)
) {
return flattened
}
const unionIfAny = l2 => l1 => union(l1)(!l2 ? [] : l2)
const children = $(
[],
[
unionIfAny(currentNode.children),
unionIfAny(currentNode.indexes),
unionIfAny(currentNode.aggregateGroups),
]
)
for (const child of children) {
flattenHierarchy(child, flattened)
}
return flattened
}
appHierarchy.getFlattenedHierarchy = () => flattenHierarchy(appHierarchy, [])
return appHierarchy.getFlattenedHierarchy()
}
export const getLastPartInKey = key => last(splitKey(key))
export const getNodesInPath = appHierarchy => key =>
$(appHierarchy, [
getFlattenedHierarchy,
filter(n => new RegExp(`${n.pathRegx()}`).test(key)),
])
export const getExactNodeForKey = appHierarchy => key =>
$(appHierarchy, [
getFlattenedHierarchy,
find(n => new RegExp(`${n.pathRegx()}$`).test(key)),
])
export const getNodeForCollectionPath = appHierarchy => collectionKey =>
$(appHierarchy, [
getFlattenedHierarchy,
find(
n =>
isCollectionRecord(n) &&
new RegExp(`${n.collectionPathRegx()}$`).test(collectionKey)
),
])
export const hasMatchingAncestor = ancestorPredicate => decendantNode =>
switchCase(
[node => isNothing(node.parent()), constant(false)],
[node => ancestorPredicate(node.parent()), constant(true)],
[defaultCase, node => hasMatchingAncestor(ancestorPredicate)(node.parent())]
)(decendantNode)
export const getNode = (appHierarchy, nodeKey) =>
$(appHierarchy, [
getFlattenedHierarchy,
find(
n =>
n.nodeKey() === nodeKey ||
(isCollectionRecord(n) && n.collectionNodeKey() === nodeKey)
),
])
export const getCollectionNode = (appHierarchy, nodeKey) =>
$(appHierarchy, [
getFlattenedHierarchy,
find(n => isCollectionRecord(n) && n.collectionNodeKey() === nodeKey),
])
export const getNodeByKeyOrNodeKey = (appHierarchy, keyOrNodeKey) => {
const nodeByKey = getExactNodeForKey(appHierarchy)(keyOrNodeKey)
return isNothing(nodeByKey) ? getNode(appHierarchy, keyOrNodeKey) : nodeByKey
}
export const getCollectionNodeByKeyOrNodeKey = (appHierarchy, keyOrNodeKey) => {
const nodeByKey = getNodeForCollectionPath(appHierarchy)(keyOrNodeKey)
return isNothing(nodeByKey)
? getCollectionNode(appHierarchy, keyOrNodeKey)
: nodeByKey
}
export const isNode = (appHierarchy, key) =>
isSomething(getExactNodeForKey(appHierarchy)(key))
export const getActualKeyOfParent = (parentNodeKey, actualChildKey) =>
$(actualChildKey, [
splitKey,
take(splitKey(parentNodeKey).length),
ks => joinKey(...ks),
])
export const getParentKey = key => {
return $(key, [splitKey, take(splitKey(key).length - 1), joinKey])
}
export const isKeyAncestorOf = ancestorKey => decendantNode =>
hasMatchingAncestor(p => p.nodeKey() === ancestorKey)(decendantNode)
export const hasNoMatchingAncestors = parentPredicate => node =>
!hasMatchingAncestor(parentPredicate)(node)
export const findField = (recordNode, fieldName) =>
find(f => f.name == fieldName)(recordNode.fields)
export const isAncestor = decendant => ancestor =>
isKeyAncestorOf(ancestor.nodeKey())(decendant)
export const isDecendant = ancestor => decendant =>
isAncestor(decendant)(ancestor)
export const getRecordNodeId = recordKey =>
$(recordKey, [splitKey, last, getRecordNodeIdFromId])
export const getRecordNodeIdFromId = recordId =>
$(recordId, [split("-"), first, parseInt])
export const getRecordNodeById = (hierarchy, recordId) =>
$(hierarchy, [
getFlattenedHierarchy,
find(n => isModel(n) && n.nodeId === getRecordNodeIdFromId(recordId)),
])
export const recordNodeIdIsAllowed = indexNode => nodeId =>
indexNode.allowedModelNodeIds.length === 0 ||
includes(nodeId)(indexNode.allowedModelNodeIds)
export const recordNodeIsAllowed = indexNode => recordNode =>
recordNodeIdIsAllowed(indexNode)(recordNode.nodeId)
export const getAllowedRecordNodesForIndex = (appHierarchy, indexNode) => {
const recordNodes = $(appHierarchy, [getFlattenedHierarchy, filter(isModel)])
if (isGlobalIndex(indexNode)) {
return $(recordNodes, [filter(recordNodeIsAllowed(indexNode))])
}
if (isAncestorIndex(indexNode)) {
return $(recordNodes, [
filter(isDecendant(indexNode.parent())),
filter(recordNodeIsAllowed(indexNode)),
])
}
if (isReferenceIndex(indexNode)) {
return $(recordNodes, [
filter(n => some(fieldReversesReferenceToIndex(indexNode))(n.fields)),
])
}
}
export const getDependantIndexes = (hierarchy, recordNode) => {
const allIndexes = $(hierarchy, [getFlattenedHierarchy, filter(isIndex)])
const allowedAncestors = $(allIndexes, [
filter(isAncestorIndex),
filter(i => recordNodeIsAllowed(i)(recordNode)),
])
const allowedReference = $(allIndexes, [
filter(isReferenceIndex),
filter(i => some(fieldReversesReferenceToIndex(i))(recordNode.fields)),
])
return [...allowedAncestors, ...allowedReference]
}
export const getNodeFromNodeKeyHash = hierarchy => hash =>
$(hierarchy, [
getFlattenedHierarchy,
find(n => getHashCode(n.nodeKey()) === hash),
])
export const isModel = node => isSomething(node) && node.type === "record"
export const isSingleRecord = node => isModel(node) && node.isSingle
export const isCollectionRecord = node => isModel(node) && !node.isSingle
export const isIndex = node => isSomething(node) && node.type === "index"
export const isaggregateGroup = node =>
isSomething(node) && node.type === "aggregateGroup"
export const isShardedIndex = node =>
isIndex(node) && isNonEmptyString(node.getShardName)
export const isRoot = node => isSomething(node) && node.isRoot()
export const findRoot = node => (isRoot(node) ? node : findRoot(node.parent()))
export const isDecendantOfARecord = hasMatchingAncestor(isModel)
export const isGlobalIndex = node => isIndex(node) && isRoot(node.parent())
export const isReferenceIndex = node =>
isIndex(node) && node.indexType === indexTypes.reference
export const isAncestorIndex = node =>
isIndex(node) && node.indexType === indexTypes.ancestor
export const isTopLevelRecord = node => isRoot(node.parent()) && isModel(node)
export const isTopLevelIndex = node => isRoot(node.parent()) && isIndex(node)
export const getCollectionKey = recordKey =>
$(recordKey, [splitKey, parts => joinKey(parts.slice(0, parts.length - 1))])
export const fieldReversesReferenceToNode = node => field =>
field.type === "reference" &&
intersection(field.typeOptions.reverseIndexNodeKeys)(
map(i => i.nodeKey())(node.indexes)
).length > 0
export const fieldReversesReferenceToIndex = indexNode => field =>
field.type === "reference" &&
intersection(field.typeOptions.reverseIndexNodeKeys)([indexNode.nodeKey()])
.length > 0
export const nodeNameFromNodeKey = (hierarchy, nodeKey) => {
const node = getNode(hierarchy, nodeKey)
return node ? node.nodeName() : ""
}
export default {
getLastPartInKey,
getNodesInPath,
getExactNodeForKey,
hasMatchingAncestor,
getNode,
getNodeByKeyOrNodeKey,
isNode,
getActualKeyOfParent,
getParentKey,
isKeyAncestorOf,
hasNoMatchingAncestors,
findField,
isAncestor,
isDecendant,
getRecordNodeId,
getRecordNodeIdFromId,
getRecordNodeById,
recordNodeIdIsAllowed,
recordNodeIsAllowed,
getAllowedRecordNodesForIndex,
getNodeFromNodeKeyHash,
isModel,
isCollectionRecord,
isIndex,
isaggregateGroup,
isShardedIndex,
isRoot,
isDecendantOfARecord,
isGlobalIndex,
isReferenceIndex,
isAncestorIndex,
fieldReversesReferenceToNode,
fieldReversesReferenceToIndex,
getFlattenedHierarchy,
isTopLevelIndex,
isTopLevelRecord,
nodeNameFromNodeKey,
}

68
packages/core/src/templateApi/index.js
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@ -1,68 +0,0 @@
import {
getNewRootLevel,
getNewModelTemplate,
getNewIndexTemplate,
createNodeErrors,
constructHierarchy,
getNewAggregateGroupTemplate,
getNewSingleRecordTemplate,
getNewAggregateTemplate,
constructNode,
} from "./createNodes"
import { getNewField, validateField, addField, fieldErrors } from "./fields"
import {
getNewRecordValidationRule,
commonRecordValidationRules,
addRecordValidationRule,
} from "./recordValidationRules"
import { createAction, createTrigger } from "./createActions"
import {
validateTriggers,
validateTrigger,
validateNode,
validateActions,
validateAll,
} from "./validate"
import { getApplicationDefinition } from "./getApplicationDefinition"
import { saveApplicationHierarchy } from "./saveApplicationHierarchy"
import { saveActionsAndTriggers } from "./saveActionsAndTriggers"
import { all } from "../types"
import { getBehaviourSources } from "./getBehaviourSources"
import { upgradeData } from "./upgradeData"
const api = app => ({
getApplicationDefinition: getApplicationDefinition(app.datastore),
saveApplicationHierarchy: saveApplicationHierarchy(app),
saveActionsAndTriggers: saveActionsAndTriggers(app),
getBehaviourSources: () => getBehaviourSources(app.datastore),
getNewRootLevel,
constructNode,
getNewIndexTemplate,
getNewModelTemplate,
getNewField,
validateField,
addField,
fieldErrors,
getNewRecordValidationRule,
commonRecordValidationRules,
addRecordValidationRule,
createAction,
createTrigger,
validateActions,
validateTrigger,
getNewAggregateGroupTemplate,
getNewAggregateTemplate,
constructHierarchy,
getNewSingleRecordTemplate,
allTypes: all,
validateNode,
validateAll,
validateTriggers,
upgradeData: upgradeData(app),
})
export const getTemplateApi = app => api(app)
export const errors = createNodeErrors
export default getTemplateApi

55
packages/core/src/templateApi/indexes.js
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@ -1,55 +0,0 @@
import { map, isEmpty, countBy, flatten, includes, join, keys } from "lodash/fp"
import { } from "lodash"
import { applyRuleSet, makerule } from "../common/validationCommon"
import { compileFilter, compileMap } from "../indexing/evaluate"
import { isNonEmptyString, executesWithoutException, $ } from "../common"
import { isModel } from "./hierarchy"
export const indexTypes = { reference: "reference", ancestor: "ancestor" }
export const indexRuleSet = [
makerule("map", "index has no map function", index =>
isNonEmptyString(index.map)
),
makerule(
"map",
"index's map function does not compile",
index =>
!isNonEmptyString(index.map) ||
executesWithoutException(() => compileMap(index))
),
makerule(
"filter",
"index's filter function does not compile",
index =>
!isNonEmptyString(index.filter) ||
executesWithoutException(() => compileFilter(index))
),
makerule("name", "must declare a name for index", index =>
isNonEmptyString(index.name)
),
makerule(
"name",
"there is a duplicate named index on this node",
index =>
isEmpty(index.name) ||
countBy("name")(index.parent().indexes)[index.name] === 1
),
makerule(
"indexType",
"reference index may only exist on a record node",
index =>
isModel(index.parent()) || index.indexType !== indexTypes.reference
),
makerule(
"indexType",
`index type must be one of: ${join(", ")(keys(indexTypes))}`,
index => includes(index.indexType)(keys(indexTypes))
),
]
export const validateIndex = (index, allReferenceIndexesOnNode) =>
applyRuleSet(indexRuleSet(allReferenceIndexesOnNode))(index)
export const validateAllIndexes = node =>
$(node.indexes, [map(i => validateIndex(i, node.indexes)), flatten])

27
packages/core/src/templateApi/initialiseNewIndex.js
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@ -1,27 +0,0 @@
import { getAllIdsIterator } from "../indexing/allIds"
import { getRecordInfo } from "../recordApi/recordInfo"
import { isTopLevelIndex } from "./hierarchy"
import { joinKey } from "../common"
import { initialiseIndex } from "../indexing/initialiseIndex"
export const initialiseNewIndex = async (app, indexNode) => {
if (isTopLevelIndex(indexNode)) {
await initialiseIndex(app.datastore, "/", indexNode)
return
}
const iterate = await getAllIdsIterator(app)(indexNode.parent().nodeKey())
let iterateResult = await iterate()
while (!iterateResult.done) {
const { result } = iterateResult
for (const id of result.ids) {
const recordKey = joinKey(result.collectionKey, id)
await initialiseIndex(
app.datastore,
getRecordInfo(app.hierarchy, recordKey).dir,
indexNode
)
}
iterateResult = await iterate()
}
}

46
packages/core/src/templateApi/recordValidationRules.js
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@ -1,46 +0,0 @@
import { isNumber, isBoolean, defaultCase } from "lodash/fp"
import { switchCase } from "../common"
export const getNewRecordValidationRule = (
invalidFields,
messageWhenInvalid,
expressionWhenValid
) => ({
invalidFields,
messageWhenInvalid,
expressionWhenValid,
})
const getStaticValue = switchCase(
[isNumber, v => v.toString()],
[isBoolean, v => v.toString()],
[defaultCase, v => `'${v}'`]
)
export const commonRecordValidationRules = {
fieldNotEmpty: fieldName =>
getNewRecordValidationRule(
[fieldName],
`${fieldName} is empty`,
`!_.isEmpty(record['${fieldName}'])`
),
fieldBetween: (fieldName, min, max) =>
getNewRecordValidationRule(
[fieldName],
`${fieldName} must be between ${min.toString()} and ${max.toString()}`,
`record['${fieldName}'] >= ${getStaticValue(
min
)} && record['${fieldName}'] <= ${getStaticValue(max)} `
),
fieldGreaterThan: (fieldName, min, max) =>
getNewRecordValidationRule(
[fieldName],
`${fieldName} must be greater than ${min.toString()} and ${max.toString()}`,
`record['${fieldName}'] >= ${getStaticValue(min)} `
),
}
export const addRecordValidationRule = recordNode => rule =>
recordNode.validationRules.push(rule)

52
packages/core/src/templateApi/saveActionsAndTriggers.js
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@ -1,52 +0,0 @@
import { join } from "lodash"
import { map } from "lodash/fp"
import { appDefinitionFile } from "../common"
import { validateTriggers, validateActions } from "./validate"
import { apiWrapper } from "../common/apiWrapper"
import { events } from "../common/events"
import { permission } from "../authApi/permissions"
import { BadRequestError } from "../common/errors"
export const saveActionsAndTriggers = app => async (actions, triggers) =>
apiWrapper(
app,
events.templateApi.saveActionsAndTriggers,
permission.writeTemplates.isAuthorized,
{ actions, triggers },
_saveActionsAndTriggers,
app.datastore,
actions,
triggers
)
export const _saveActionsAndTriggers = async (datastore, actions, triggers) => {
if (await datastore.exists(appDefinitionFile)) {
const appDefinition = await datastore.loadJson(appDefinitionFile)
appDefinition.actions = actions
appDefinition.triggers = triggers
const actionValidErrs = map(e => e.error)(validateActions(actions))
if (actionValidErrs.length > 0) {
throw new BadRequestError(
`Actions are invalid: ${join(actionValidErrs, ", ")}`
)
}
const triggerValidErrs = map(e => e.error)(
validateTriggers(triggers, actions)
)
if (triggerValidErrs.length > 0) {
throw new BadRequestError(
`Triggers are invalid: ${join(triggerValidErrs, ", ")}`
)
}
await datastore.updateJson(appDefinitionFile, appDefinition)
} else {
throw new BadRequestError(
"Cannot save actions: Application definition does not exist"
)
}
}

45
packages/core/src/templateApi/saveApplicationHierarchy.js
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@ -1,45 +0,0 @@
import { join } from "lodash"
import { permission } from "../authApi/permissions"
import { appDefinitionFile } from "../common"
import { validateAll } from "./validate"
import { apiWrapper } from "../common/apiWrapper"
import { events } from "../common/events"
export const saveApplicationHierarchy = app => async hierarchy =>
apiWrapper(
app,
events.templateApi.saveApplicationHierarchy,
permission.writeTemplates.isAuthorized,
{ hierarchy },
_saveApplicationHierarchy,
app.datastore,
hierarchy
)
export const _saveApplicationHierarchy = async (datastore, hierarchy) => {
const validationErrors = await validateAll(hierarchy)
if (validationErrors.length > 0) {
throw new Error(
`Hierarchy is invalid: ${join(
validationErrors.map(
e => `${e.item.nodeKey ? e.item.nodeKey() : ""} : ${e.error}`
),
","
)}`
)
}
if (hierarchy.getFlattenedHierarchy) {
delete hierarchy.getFlattenedHierarchy
}
if (await datastore.exists(appDefinitionFile)) {
const appDefinition = await datastore.loadJson(appDefinitionFile)
appDefinition.hierarchy = hierarchy
await datastore.updateJson(appDefinitionFile, appDefinition)
} else {
await datastore.createFolder("/.config")
const appDefinition = { actions: [], triggers: [], hierarchy }
await datastore.createJson(appDefinitionFile, appDefinition)
}
}

208
packages/core/src/templateApi/upgradeData.js
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@ -1,208 +0,0 @@
import { diffHierarchy, HierarchyChangeTypes } from "./diffHierarchy"
import { $, switchCase } from "../common"
import {
differenceBy,
isEqual,
some,
map,
filter,
uniqBy,
flatten,
} from "lodash/fp"
import {
findRoot,
getDependantIndexes,
isTopLevelRecord,
isAncestorIndex,
} from "./hierarchy"
import { generateSchema } from "../indexing/indexSchemaCreator"
import { _buildIndex } from "../indexApi/buildIndex"
import { constructHierarchy } from "./createNodes"
import { deleteAllRecordsForNode } from "./deleteAllRecordsForNode"
import { deleteAllIndexFilesForNode } from "./deleteAllIndexFilesForNode"
import { cloneApp } from "../appInitialise/cloneApp"
import { initialiseData } from "../appInitialise/initialiseData"
import { initialiseChildrenForNode } from "../recordApi/initialiseChildren"
import { initialiseNewIndex } from "./initialiseNewIndex"
import { _saveApplicationHierarchy } from "../templateApi/saveApplicationHierarchy"
import { getApplicationDefinition } from "../templateApi/getApplicationDefinition"
export const upgradeData = app => async newHierarchy => {
const currentAppDef = await getApplicationDefinition(app.datastore)()
app.hierarchy = currentAppDef.hierarchy
newHierarchy = constructHierarchy(newHierarchy)
const diff = diffHierarchy(app.hierarchy, newHierarchy)
const changeActions = gatherChangeActions(diff)
if (changeActions.length === 0) return
const newApp =
newHierarchy &&
cloneApp(app, {
hierarchy: newHierarchy,
})
await doUpgrade(app, newApp, changeActions)
await _saveApplicationHierarchy(newApp.datastore, newHierarchy)
}
const gatherChangeActions = diff =>
$(diff, [map(actionForChange), flatten, uniqBy(a => a.compareKey)])
const doUpgrade = async (oldApp, newApp, changeActions) => {
for (let action of changeActions) {
await action.run(oldApp, newApp, action.diff)
}
}
const actionForChange = diff =>
switchCase(
[isChangeType(HierarchyChangeTypes.recordCreated), recordCreatedAction],
[isChangeType(HierarchyChangeTypes.recordDeleted), deleteRecordsAction],
[
isChangeType(HierarchyChangeTypes.recordFieldsChanged),
rebuildAffectedIndexesAction,
],
[isChangeType(HierarchyChangeTypes.recordRenamed), renameRecordAction],
[
isChangeType(HierarchyChangeTypes.recordEstimatedRecordTypeChanged),
reshardRecordsAction,
],
[isChangeType(HierarchyChangeTypes.indexCreated), newIndexAction],
[isChangeType(HierarchyChangeTypes.indexDeleted), deleteIndexAction],
[isChangeType(HierarchyChangeTypes.indexChanged), rebuildIndexAction]
)(diff)
const isChangeType = changeType => change => change.type === changeType
const action = (diff, compareKey, run) => ({
diff,
compareKey,
run,
})
const reshardRecordsAction = diff => [
action(diff, `reshardRecords-${diff.oldNode.nodeKey()}`, runReshardRecords),
]
const rebuildIndexAction = diff => [
action(diff, `rebuildIndex-${diff.newNode.nodeKey()}`, runRebuildIndex),
]
const newIndexAction = diff => {
if (isAncestorIndex(diff.newNode)) {
return [
action(diff, `rebuildIndex-${diff.newNode.nodeKey()}`, runRebuildIndex),
]
} else {
return [action(diff, `newIndex-${diff.newNode.nodeKey()}`, runNewIndex)]
}
}
const deleteIndexAction = diff => [
action(diff, `deleteIndex-${diff.oldNode.nodeKey()}`, runDeleteIndex),
]
const deleteRecordsAction = diff => [
action(diff, `deleteRecords-${diff.oldNode.nodeKey()}`, runDeleteRecords),
]
const renameRecordAction = diff => [
action(diff, `renameRecords-${diff.oldNode.nodeKey()}`, runRenameRecord),
]
const recordCreatedAction = diff => {
if (isTopLevelRecord(diff.newNode)) {
return [action(diff, `initialiseRoot`, runInitialiseRoot)]
}
return [
action(
diff,
`initialiseChildRecord-${diff.newNode.nodeKey()}`,
runInitialiseChildRecord
),
]
}
const rebuildAffectedIndexesAction = diff => {
const newHierarchy = findRoot(diff.newNode)
const oldHierarchy = findRoot(diff.oldNode)
const indexes = getDependantIndexes(newHierarchy, diff.newNode)
const changedFields = (() => {
const addedFields = differenceBy(f => f.name)(diff.oldNode.fields)(
diff.newNode.fields
)
const removedFields = differenceBy(f => f.name)(diff.newNode.fields)(
diff.oldNode.fields
)
return map(f => f.name)([...addedFields, ...removedFields])
})()
const isIndexAffected = i => {
if (
!isEqual(generateSchema(oldHierarchy, i), generateSchema(newHierarchy, i))
)
return true
if (some(f => indexes.filter.indexOf(`record.${f}`) > -1)(changedFields))
return true
if (
some(f => indexes.getShardName.indexOf(`record.${f}`) > -1)(changedFields)
)
return true
return false
}
return $(indexes, [
filter(isIndexAffected),
map(i =>
action({ newNode: i }, `rebuildIndex-${i.nodeKey()}`, runRebuildIndex)
),
])
}
const runReshardRecords = async change => {
throw new Error("Resharding of records is not supported yet")
}
const runRebuildIndex = async (_, newApp, diff) => {
await _buildIndex(newApp, diff.newNode.nodeKey())
}
const runDeleteIndex = async (oldApp, _, diff) => {
await deleteAllIndexFilesForNode(oldApp, diff.oldNode)
}
const runDeleteRecords = async (oldApp, _, diff) => {
await deleteAllRecordsForNode(oldApp, diff.oldNode)
}
const runNewIndex = async (_, newApp, diff) => {
await initialiseNewIndex(newApp, diff.newNode)
}
const runRenameRecord = change => {
/*
Going to disllow this in the builder. once a collection key is set... its done
*/
}
const runInitialiseRoot = async (_, newApp) => {
await initialiseData(newApp.datastore, newApp)
}
const runInitialiseChildRecord = async (_, newApp, diff) => {
await initialiseChildrenForNode(newApp, diff.newNode)
}

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