1548 lines
49 KiB
C
1548 lines
49 KiB
C
/*
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* Copyright 2015 Robert Foss. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the
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* distribution.
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* - Neither the name of the copyright holders nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* @author Robert Foss <dev@robertfoss.se>
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*
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* Additions & fixes: Johny Mattsson <jmattsson@dius.com.au>
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*/
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#include "module.h"
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#include "lauxlib.h"
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#include "lmem.h"
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#include "platform.h"
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#include "c_stdlib.h"
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#include "c_stdio.h"
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#include "c_string.h"
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#include "ctype.h"
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#include "user_interface.h"
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#include "espconn.h"
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#include "lwip/tcp.h"
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#include "lwip/pbuf.h"
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#include "flash_fs.h"
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#include "task/task.h"
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#define MIN(x, y) (((x) < (y)) ? (x) : (y))
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#define LITLEN(strliteral) (sizeof (strliteral) -1)
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#define ENDUSER_SETUP_ERR_FATAL (1 << 0)
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#define ENDUSER_SETUP_ERR_NONFATAL (1 << 1)
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#define ENDUSER_SETUP_ERR_NO_RETURN (1 << 2)
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#define ENDUSER_SETUP_ERR_OUT_OF_MEMORY 1
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#define ENDUSER_SETUP_ERR_CONNECTION_NOT_FOUND 2
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#define ENDUSER_SETUP_ERR_UNKOWN_ERROR 3
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#define ENDUSER_SETUP_ERR_SOCKET_ALREADY_OPEN 4
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/**
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* DNS Response Packet:
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*
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* |DNS ID - 16 bits|
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* |dns_header|
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* |QNAME|
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* |dns_body|
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* |ip - 32 bits|
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*
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* DNS Header Part | FLAGS | | Q COUNT | | A CNT | |AUTH CNT| | ADD CNT| */
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static const char dns_header[] = { 0x80, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 };
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/* DNS Query Part | Q TYPE | | Q CLASS| */
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static const char dns_body[] = { 0x00, 0x01, 0x00, 0x01,
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/* DNS Answer Part |LBL OFFS| | TYPE | | CLASS | | TTL | | RD LEN | */
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0xC0, 0x0C, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x78, 0x00, 0x04 };
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static const char http_html_filename[] = "enduser_setup.html";
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static const char http_header_200[] = "HTTP/1.1 200 OK\r\nCache-control:no-cache\r\nContent-Type: text/html\r\n"; /* Note single \r\n here! */
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static const char http_header_204[] = "HTTP/1.1 204 No Content\r\n\r\n";
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static const char http_header_302[] = "HTTP/1.1 302 Moved\r\nLocation: /\r\n\r\n";
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static const char http_header_401[] = "HTTP/1.1 401 Bad request\r\n\r\n";
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static const char http_header_404[] = "HTTP/1.1 404 Not found\r\n\r\n";
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static const char http_header_500[] = "HTTP/1.1 500 Internal Error\r\n\r\n";
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/* The below is the un-minified version of the http_html_backup[] string.
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* Minified using https://kangax.github.io/html-minifier/
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* Note: using method="get" due to iOS not always sending body in same
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* packet as the HTTP header, and us thus missing it in that case
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*/
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#if 0
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<!DOCTYPE html>
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<meta charset="utf-8">
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<meta name="viewport" content="width=380">
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<title>WiFi Login</title>
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<style media="screen" type="text/css">
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*{margin:0;padding:0}
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html{height:100%;background:linear-gradient(rgba(196,102,0,.2),rgba(155,89,182,.2)),url(data:image/png;base64,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)}
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body{font-family:arial,verdana}
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div{position:absolute;margin:auto;top:-150px;right:0;bottom:0;left:0;width:320px;height:304px}
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form{width:320px;text-align:center;position:relative}
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form fieldset{background:#fff;border:0 none;border-radius:5px;box-shadow:0 0 15px 1px rgba(0,0,0,.4);padding:20px 30px;box-sizing:border-box}
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form input{padding:15px;border:1px solid #ccc;border-radius:3px;margin-bottom:10px;width:100%;box-sizing:border-box;font-family:montserrat;color:#2C3E50;font-size:13px}
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form .action-button{border:0 none;border-radius:3px;cursor:pointer;}
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#msform .submit:focus,form .action-button:hover{box-shadow:0 0 0 2px #fff,0 0 0 3px #27AE60;}
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#formFrame{display: none;}
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#aplist{display: block;}
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select{width:100%;margin-bottom: 20px;padding: 10px 5px; border:1px solid #ccc;display:none;}
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.fs-title{font-size:15px;text-transform:uppercase;color:#2C3E50;margin-bottom:10px}
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.fs-subtitle{font-weight:400;font-size:13px;color:#666;margin-bottom:20px}
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.fs-status{font-weight:400;font-size:13px;color:#666;margin-bottom:10px;padding-top:20px; border-top:1px solid #ccc}
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.submit{width:100px;background: #27AE60; color: #fff;font-weight:700;margin:10px 5px; padding: 10px 5px; }
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</style>
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</head>
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<body>
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<div>
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<form id="credentialsForm" method="get" action="/update" target="formFrame">
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<fieldset>
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<iframe id="formFrame" src="" name="formFrame"></iframe> <!-- Used to submit data, needed to prevent re-direction after submission -->
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<h2 class="fs-title">WiFi Login</h2>
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<h3 class="fs-subtitle">Connect gadget to your WiFi network</h3>
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<input id="wifi_ssid" autocorrect="off" autocapitalize="none" name="wifi_ssid" placeholder="WiFi Name">
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<select id="aplist" name="aplist" size="1" disabled>
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<option>Scanning for networks...</option>
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</select>
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<input name="wifi_password" placeholder="Password" type="password">
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<input type=submit name=save class="action-button submit" value="Save">
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<h3 class="fs-status">Status: <span id="status">Updating...</span></h3>
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</fieldset>
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<h3 id="dbg"></h3>
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</form>
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</div>
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<script>
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function fetch(url, method, callback)
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{
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var xhr = new XMLHttpRequest();
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xhr.onreadystatechange=check_ready;
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function check_ready()
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{
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if (xhr.readyState === 4)
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{
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callback(xhr.status === 200 ? xhr.responseText : null);
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}
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}
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xhr.open(method, url, true);
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xhr.send();
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}
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function new_status(stat)
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{
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if (stat)
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{
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var e = document.getElementById("status");
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e.innerHTML = stat;
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}
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}
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function new_status_repeat(stat)
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{
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new_status(stat);
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setTimeout(refresh_status, 750);
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}
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function new_ap_list(json)
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{
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if (json)
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{
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var list = JSON.parse(json);
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list.sort(function(a, b){ return b.rssi - a.rssi; });
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var ssids = list.map(function(a) { return a.ssid; }).filter(function(item, pos, self) { return self.indexOf(item)==pos; });
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var sel = document.getElementById("aplist");
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sel.innerHTML = "";
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sel.setAttribute("size", Math.max(Math.min(3, list.length), 1));
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sel.removeAttribute("disabled");
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for (var i = 0; i < ssids.length; ++i)
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{
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var o = document.createElement("option");
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o.innerHTML = ssids[i];
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sel.options.add(o);
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}
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sel.style.display = 'block';
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}
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}
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function new_ap_list_repeat(json)
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{
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new_ap_list(json);
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setTimeout(refresh_ap_list, 3000);
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}
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function refresh_status()
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{
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fetch('/status','GET', new_status_repeat);
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}
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function refresh_ap_list()
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{
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fetch('/aplist','GET', new_ap_list_repeat);
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}
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function set_ssid_field() {
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var sel = document.getElementById("aplist");
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document.getElementById("wifi_ssid").value = sel.value;
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}
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window.onload = function()
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{
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refresh_status();
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refresh_ap_list();
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document.getElementById("aplist").onclick = set_ssid_field;
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document.getElementById("aplist").onchange = set_ssid_field;
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document.getElementById("credentialsForm").addEventListener("submit", function(){
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fetch('/status','GET', new_status);
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});
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}
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</script>
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</body>
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</html>
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#endif
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static const char http_html_backup[] =
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"<!DOCTYPE html><meta http-equiv=content-type content='text/html; charset=UTF-8'><meta charset=utf-8><meta name=viewport content='width=380'><title>WiFi Login</title><style media=screen type=text/css>*{margin:0;padding:0}html{height:100%;background:linear-gradient(rgba(196,102,0,.2),rgba(155,89,182,.2)),url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEYAAAA8AgMAAACm+SSwAAAADFBMVEVBR1FFS1VHTlg8Q0zU/YXIAAADVElEQVQ4yy1TTYvTUBQ9GTKiYNoodsCF4MK6U4TZChOhiguFWHyBFzqlLl4hoeNvEBeCrlrhBVKq1EUKLTP+hvi1GyguXqBdiZCBzGqg20K8L3hDQnK55+OeJNguHx6UujYl3dL5ALn4JOIUluAqeAWciyGaSdvngOWzNT+G0UyGUOxVOAdqkjXDCbBiUyjZ5QzYEbGadYAi6kHxth+kthXNVNCDofwhGv1D4QGGiM9iAjbCHgr2iUUpDJbs+VPQ4xAr2fX7KXbkOJMdok965Ksb+6lrjdkem8AshIuHm9Nyu19uTunYlOXDTQqi8VgeH0kBXH2xq/ouiMZPzuMukymutrBmulUTovC6HqNFW2ZOiqlpSXZOTvSUeUPxChjxol8BLbRy4gJuhV7OR4LRVBs3WQ9VVAU7SXgK2HeUrOj7bC8YsUgr3lEV/TXB7hK90EBnxaeg1Ov15bY80M736ekCGesGAaGvG0Ct4WRkVQVHIgIM9xJgvSFfPay8Q6GNv7VpR7xUnkvhnMQCJDYkYOtNLihV70tCU1Sk+BQrpoP+HLHUrJkuta40C6LP5GvBv+Hqo10ATxxFrTPvNdPr7XwgQud6RvQN/sXjBGzqbU27wcj9cgsyvSTrpyXV8gKpXeNJU3aFl7MOdldzV4+HfO19jBa5f2IjWwx1OLHIvFHkqbBj20ro1g7nDfY1DpScvDRUNARgjMMVO0zoMjKxJ6uWCPP+YRAWbGoaN8kXYHmLjB9FXLGOazfFVCvOgqzfnicNPrHtPKlex2ye824gMza0cTZ2sS2Xm7Qst/UfFw8O6vVtmUKxZy9xFgzMys5cJ5fxZw4y37Ufk1Dsfb8MqOjYxE3ZMWxiDcO0PYUaD2ys+8OW1pbB7/e3sfZeGVCL0Q2aMjjPdm2sxADuejZxHJAd8dO9DSUdA0V8/NggRRanDkBrANn8yHlEQOn/MmwoQfQF7xgmKDnv520bS/pgylP67vf3y2V5sCwfoCEMkZClgOfJAFX9eXefR2RpnmRs4CDVPceaRfoFzCkJVJX27vWZnoqyvmtXU3+dW1EIXIu8Qg5Qta4Zlv7drUCoWe8/8MXzaEwux7ESE9h6qnHj3mIO0/D9RvzfxPmjWiQ1vbeSk4rrHwhAre35EEVaAAAAAElFTkSuQmCC)}body{font-family:arial,verdana}div{position:absolute;margin:auto;top:-150px;right:0;bottom:0;left:0;width:320px;height:304px}form{width:320px;text-align:center;position:relative}form fieldset{background:#fff;border:0 none;border-radius:5px;box-shadow:0 0 15px 1px rgba(0,0,0,.4);padding:20px 30px;box-sizing:border-box}form input{padding:15px;border:1px solid #ccc;border-radius:3px;margin-bottom:10px;width:100%;box-sizing:border-box;font-family:montserrat;color:#2C3E50;font-size:13px}form .action-button{border:0 none;border-radius:3px;cursor:pointer}#msform .submit:focus,form .action-button:hover{box-shadow:0 0 0 2px #fff,0 0 0 3px #27AE60}#formFrame{display:none}#aplist{display:block}select{width:100%;margin-bottom:20px;padding:10px 5px;border:1px solid #ccc;display:none}.fs-title{font-size:15px;text-transform:uppercase;color:#2C3E50;margin-bottom:10px}.fs-subtitle{font-weight:400;font-size:13px;color:#666;margin-bottom:20px}.fs-status{font-weight:400;font-size:13px;color:#666;margin-bottom:10px;padding-top:20px;border-top:1px solid #ccc}.submit{width:100px;background:#27AE60;color:#fff;font-weight:700;margin:10px 5px;padding:10px 5px}</style><div><form id=credentialsForm action=/update target=formFrame><fieldset><iframe id=formFrame src=''name=formFrame></iframe><h2 class=fs-title>WiFi Login</h2><h3 class=fs-subtitle>Connect gadget to your WiFi network</h3><input id=wifi_ssid autocorrect=off autocapitalize=none name=wifi_ssid placeholder='WiFi Name'><select id=aplist name=aplist size=1 disabled><option>Scanning for networks...</select><input name=wifi_password placeholder=Password type=password> <input type=submit name=save class='action-button submit'value=Save><h3 class=fs-status>Status: <span id=status>Updating...</span></h3></fieldset><h3 id=dbg></h3></form></div><script>function fetch(t,e,n){function s(){4===i.readyState&&n(200===i.status?i.responseText:null)}var i=new XMLHttpRequest;i.onreadystatechange=s,i.open(e,t,!0),i.send()}function new_status(t){if(t){var e=document.getElementById('status');e.innerHTML=t}}function new_status_repeat(t){new_status(t),setTimeout(refresh_status,750)}function new_ap_list(t){if(t){var e=JSON.parse(t);e.sort(function(t,e){return e.rssi-t.rssi});var n=e.map(function(t){return t.ssid}).filter(function(t,e,n){return n.indexOf(t)==e}),s=document.getElementById('aplist');s.innerHTML='',s.setAttribute('size',Math.max(Math.min(3,e.length),1)),s.removeAttribute('disabled');for(var i=0;i<n.length;++i){var a=document.createElement('option');a.innerHTML=n[i],s.options.add(a)}s.style.display='block'}}function new_ap_list_repeat(t){new_ap_list(t),setTimeout(refresh_ap_list,3e3)}function refresh_status(){fetch('/status','GET',new_status_repeat)}function refresh_ap_list(){fetch('/aplist','GET',new_ap_list_repeat)}function set_ssid_field(){var t=document.getElementById('aplist');document.getElementById('wifi_ssid').value=t.value}window.onload=function(){refresh_status(),refresh_ap_list(),document.getElementById('aplist').onclick=set_ssid_field,document.getElementById('aplist').onchange=set_ssid_field,document.getElementById('credentialsForm').addEventListener('submit',function(){fetch('/status','GET',new_status)})}</script>";
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typedef struct scan_listener
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{
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struct tcp_pcb *conn;
|
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struct scan_listener *next;
|
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} scan_listener_t;
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|
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typedef struct
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{
|
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struct espconn *espconn_dns_udp;
|
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struct tcp_pcb *http_pcb;
|
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char *http_payload_data;
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uint32_t http_payload_len;
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os_timer_t check_station_timer;
|
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os_timer_t shutdown_timer;
|
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int lua_connected_cb_ref;
|
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int lua_err_cb_ref;
|
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int lua_dbg_cb_ref;
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scan_listener_t *scan_listeners;
|
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} enduser_setup_state_t;
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static enduser_setup_state_t *state;
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static bool manual = false;
|
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static task_handle_t do_station_cfg_handle;
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|
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static int enduser_setup_manual(lua_State* L);
|
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static int enduser_setup_start(lua_State* L);
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static int enduser_setup_stop(lua_State* L);
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static void enduser_setup_stop_callback(void *ptr);
|
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static void enduser_setup_station_start(void);
|
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static void enduser_setup_ap_start(void);
|
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static void enduser_setup_ap_stop(void);
|
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static void enduser_setup_check_station(void *p);
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static void enduser_setup_debug(int line, const char *str);
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#define ENDUSER_SETUP_DEBUG_ENABLE 0
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#if ENDUSER_SETUP_DEBUG_ENABLE
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#define ENDUSER_SETUP_DEBUG(str) enduser_setup_debug(__LINE__, str)
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#else
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#define ENDUSER_SETUP_DEBUG(str) do {} while(0)
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#endif
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#define ENDUSER_SETUP_ERROR(str, err, err_severity) \
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do { \
|
|
ENDUSER_SETUP_DEBUG(str); \
|
|
if (err_severity & ENDUSER_SETUP_ERR_FATAL) enduser_setup_stop(lua_getstate());\
|
|
enduser_setup_error(__LINE__, str, err);\
|
|
if (!(err_severity & ENDUSER_SETUP_ERR_NO_RETURN)) \
|
|
return err; \
|
|
} while (0)
|
|
|
|
|
|
#define ENDUSER_SETUP_ERROR_VOID(str, err, err_severity) \
|
|
do { \
|
|
ENDUSER_SETUP_DEBUG(str); \
|
|
if (err_severity & ENDUSER_SETUP_ERR_FATAL) enduser_setup_stop(lua_getstate());\
|
|
enduser_setup_error(__LINE__, str, err);\
|
|
if (!(err_severity & ENDUSER_SETUP_ERR_NO_RETURN)) \
|
|
return; \
|
|
} while (0)
|
|
|
|
|
|
static void enduser_setup_debug(int line, const char *str)
|
|
{
|
|
lua_State *L = lua_getstate();
|
|
if(state != NULL && state->lua_dbg_cb_ref != LUA_NOREF)
|
|
{
|
|
lua_rawgeti(L, LUA_REGISTRYINDEX, state->lua_dbg_cb_ref);
|
|
lua_pushfstring(L, "%d: \t%s", line, str);
|
|
lua_call(L, 1, 0);
|
|
}
|
|
}
|
|
|
|
|
|
static void enduser_setup_error(int line, const char *str, int err)
|
|
{
|
|
ENDUSER_SETUP_DEBUG("enduser_setup_error");
|
|
|
|
lua_State *L = lua_getstate();
|
|
if (state != NULL && state->lua_err_cb_ref != LUA_NOREF)
|
|
{
|
|
lua_rawgeti (L, LUA_REGISTRYINDEX, state->lua_err_cb_ref);
|
|
lua_pushnumber(L, err);
|
|
lua_pushfstring(L, "%d: \t%s", line, str);
|
|
lua_call (L, 2, 0);
|
|
}
|
|
}
|
|
|
|
|
|
static void enduser_setup_connected_callback()
|
|
{
|
|
ENDUSER_SETUP_DEBUG("enduser_setup_connected_callback");
|
|
|
|
lua_State *L = lua_getstate();
|
|
if (state != NULL && state->lua_connected_cb_ref != LUA_NOREF)
|
|
{
|
|
lua_rawgeti(L, LUA_REGISTRYINDEX, state->lua_connected_cb_ref);
|
|
lua_call(L, 0, 0);
|
|
}
|
|
}
|
|
|
|
|
|
static void enduser_setup_check_station_start(void)
|
|
{
|
|
ENDUSER_SETUP_DEBUG("enduser_setup_check_station_start");
|
|
|
|
os_timer_setfn(&(state->check_station_timer), enduser_setup_check_station, NULL);
|
|
os_timer_arm(&(state->check_station_timer), 1*1000, TRUE);
|
|
}
|
|
|
|
|
|
static void enduser_setup_check_station_stop(void)
|
|
{
|
|
ENDUSER_SETUP_DEBUG("enduser_setup_check_station_stop");
|
|
|
|
if (state != NULL)
|
|
{
|
|
os_timer_disarm(&(state->check_station_timer));
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Check Station
|
|
*
|
|
* Check that we've successfully entered station mode.
|
|
*/
|
|
static void enduser_setup_check_station(void *p)
|
|
{
|
|
ENDUSER_SETUP_DEBUG("enduser_setup_check_station");
|
|
|
|
(void)p;
|
|
struct ip_info ip;
|
|
c_memset(&ip, 0, sizeof(struct ip_info));
|
|
|
|
wifi_get_ip_info(STATION_IF, &ip);
|
|
|
|
int i;
|
|
char has_ip = 0;
|
|
for (i = 0; i < sizeof(struct ip_info); ++i)
|
|
{
|
|
has_ip |= ((char *) &ip)[i];
|
|
}
|
|
|
|
if (has_ip == 0)
|
|
{
|
|
return;
|
|
}
|
|
|
|
enduser_setup_check_station_stop();
|
|
enduser_setup_connected_callback();
|
|
|
|
/* Trigger shutdown, but allow time for HTTP client to fetch last status. */
|
|
if (!manual)
|
|
{
|
|
os_timer_setfn(&(state->shutdown_timer), enduser_setup_stop_callback, NULL);
|
|
os_timer_arm(&(state->shutdown_timer), 10*1000, FALSE);
|
|
}
|
|
}
|
|
|
|
|
|
/* --- Connection closing handling ----------------------------------------- */
|
|
|
|
/* It is far more memory efficient to let the other end close the connection
|
|
* first and respond to that, than us initiating the closing. The latter
|
|
* seems to leave the pcb in a fin_wait state for a long time, which can
|
|
* starve us of memory over time.
|
|
*
|
|
* By instead using the poll function to schedule a hard abort a few seconds
|
|
* from now we achieve a deadline close. The downside is a (very) slight
|
|
* risk of dropping the connection early, but in this application that's
|
|
* hidden by the retries on the JavaScript side anyway.
|
|
*/
|
|
|
|
|
|
/* Callback on timeout to hard-close a connection */
|
|
static err_t force_abort (void *arg, struct tcp_pcb *pcb)
|
|
{
|
|
(void)arg;
|
|
tcp_poll (pcb, 0, 0);
|
|
tcp_abort (pcb);
|
|
return ERR_ABRT;
|
|
}
|
|
|
|
/* Callback to detect a remote-close of a connection */
|
|
static err_t handle_remote_close (void *arg, struct tcp_pcb *pcb, struct pbuf *p, err_t err)
|
|
{
|
|
(void)arg; (void)err;
|
|
if (p) /* server sent us data, just ACK and move on */
|
|
{
|
|
tcp_recved (pcb, p->tot_len);
|
|
pbuf_free (p);
|
|
}
|
|
else /* hey, remote end closed, we can do a soft close safely, yay! */
|
|
{
|
|
tcp_recv (pcb, 0);
|
|
tcp_poll (pcb, 0, 0);
|
|
tcp_close (pcb);
|
|
}
|
|
return ERR_OK;
|
|
}
|
|
|
|
/* Set up a deferred close of a connection, as discussed above. */
|
|
static inline void deferred_close (struct tcp_pcb *pcb)
|
|
{
|
|
tcp_poll (pcb, force_abort, 15); /* ~3sec from now */
|
|
tcp_recv (pcb, handle_remote_close);
|
|
tcp_sent (pcb, 0);
|
|
}
|
|
|
|
/* Convenience function to queue up a close-after-send. */
|
|
static err_t close_once_sent (void *arg, struct tcp_pcb *pcb, u16_t len)
|
|
{
|
|
(void)arg; (void)len;
|
|
deferred_close (pcb);
|
|
return ERR_OK;
|
|
}
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
/**
|
|
* Search String
|
|
*
|
|
* Search string for first occurance of any char in srch_str.
|
|
*
|
|
* @return -1 iff no occurance of char was found.
|
|
*/
|
|
static int enduser_setup_srch_str(const char *str, const char *srch_str)
|
|
{
|
|
char *found = strpbrk (str, srch_str);
|
|
if (!found)
|
|
{
|
|
return -1;
|
|
}
|
|
else
|
|
{
|
|
return found - str;
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Load HTTP Payload
|
|
*
|
|
* @return - 0 iff payload loaded successfully
|
|
* 1 iff backup html was loaded
|
|
* 2 iff out of memory
|
|
*/
|
|
static int enduser_setup_http_load_payload(void)
|
|
{
|
|
ENDUSER_SETUP_DEBUG("enduser_setup_http_load_payload");
|
|
|
|
int err = (FS_OPEN_OK -1);
|
|
int err2 = (FS_OPEN_OK -1);
|
|
int file_len = 0;
|
|
int f = fs_open(http_html_filename, fs_mode2flag("r"));
|
|
if (f >= FS_OPEN_OK) {
|
|
err = fs_seek(f, 0, FS_SEEK_END);
|
|
file_len = (int) fs_tell(f);
|
|
err2 = fs_seek(f, 0, FS_SEEK_SET);
|
|
}
|
|
|
|
const char cl_hdr[] = "Content-length:%5d\r\n\r\n";
|
|
const size_t cl_len = LITLEN(cl_hdr) + 3; /* room to expand %4d */
|
|
|
|
if (f < FS_OPEN_OK || err < FS_OPEN_OK || err2 < FS_OPEN_OK)
|
|
{
|
|
ENDUSER_SETUP_DEBUG("enduser_setup_http_load_payload unable to load file enduser_setup.html, loading backup HTML.");
|
|
|
|
int payload_len = LITLEN(http_header_200) + cl_len + LITLEN(http_html_backup);
|
|
state->http_payload_len = payload_len;
|
|
state->http_payload_data = (char *) c_malloc(payload_len);
|
|
if (state->http_payload_data == NULL)
|
|
{
|
|
return 2;
|
|
}
|
|
|
|
int offset = 0;
|
|
c_memcpy(&(state->http_payload_data[offset]), &(http_header_200), LITLEN(http_header_200));
|
|
offset += LITLEN(http_header_200);
|
|
offset += c_sprintf(state->http_payload_data + offset, cl_hdr, LITLEN(http_html_backup));
|
|
c_memcpy(&(state->http_payload_data[offset]), &(http_html_backup), LITLEN(http_html_backup));
|
|
|
|
return 1;
|
|
}
|
|
|
|
int payload_len = LITLEN(http_header_200) + cl_len + file_len;
|
|
state->http_payload_len = payload_len;
|
|
state->http_payload_data = (char *) c_malloc(payload_len);
|
|
if (state->http_payload_data == NULL)
|
|
{
|
|
return 2;
|
|
}
|
|
|
|
int offset = 0;
|
|
c_memcpy(&(state->http_payload_data[offset]), &(http_header_200), LITLEN(http_header_200));
|
|
offset += LITLEN(http_header_200);
|
|
offset += c_sprintf(state->http_payload_data + offset, cl_hdr, file_len);
|
|
fs_read(f, &(state->http_payload_data[offset]), file_len);
|
|
fs_close(f);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**
|
|
* De-escape URL data
|
|
*
|
|
* Parse escaped and form encoded data of request.
|
|
*
|
|
* @return - return 0 iff the HTTP parameter is decoded into a valid string.
|
|
*/
|
|
static int enduser_setup_http_urldecode(char *dst, const char *src, int src_len, int dst_len)
|
|
{
|
|
ENDUSER_SETUP_DEBUG("enduser_setup_http_urldecode");
|
|
|
|
char *dst_start = dst;
|
|
char *dst_last = dst + dst_len - 1; /* -1 to reserve space for last \0 */
|
|
char a, b;
|
|
int i;
|
|
for (i = 0; i < src_len && *src && dst < dst_last; ++i)
|
|
{
|
|
if ((*src == '%') && ((a = src[1]) && (b = src[2])) && (isxdigit(a) && isxdigit(b)))
|
|
{
|
|
if (a >= 'a')
|
|
{
|
|
a -= 'a'-'A';
|
|
}
|
|
if (a >= 'A')
|
|
{
|
|
a -= ('A' - 10);
|
|
}
|
|
else
|
|
{
|
|
a -= '0';
|
|
}
|
|
if (b >= 'a')
|
|
{
|
|
b -= 'a'-'A';
|
|
}
|
|
if (b >= 'A')
|
|
{
|
|
b -= ('A' - 10);
|
|
}
|
|
else
|
|
{
|
|
b -= '0';
|
|
}
|
|
*dst++ = 16 * a + b;
|
|
src += 3;
|
|
i += 2;
|
|
} else {
|
|
char c = *src++;
|
|
if (c == '+')
|
|
{
|
|
c = ' ';
|
|
}
|
|
*dst++ = c;
|
|
}
|
|
}
|
|
*dst++ = '\0';
|
|
return (i < src_len); /* did we fail to process all the input? */
|
|
}
|
|
|
|
|
|
/**
|
|
* Task to do the actual station configuration.
|
|
* This config *cannot* be done in the network receive callback or serious
|
|
* issues like memory corruption occur.
|
|
*/
|
|
static void do_station_cfg (task_param_t param, uint8_t prio)
|
|
{
|
|
struct station_config *cnf = (struct station_config *)param;
|
|
(void)prio;
|
|
|
|
/* Best-effort disconnect-reconfig-reconnect. If the device is currently
|
|
* connected, the disconnect will work but the connect will report failure
|
|
* (though it will actually start connecting). If the devices is not
|
|
* connected, the disconnect may fail but the connect will succeed. A
|
|
* solid head-in-the-sand approach seems to be the best tradeoff on
|
|
* functionality-vs-code-size.
|
|
* TODO: maybe use an error callback to at least report if the set config
|
|
* call fails.
|
|
*/
|
|
wifi_station_disconnect ();
|
|
wifi_station_set_config (cnf);
|
|
wifi_station_connect ();
|
|
luaM_free(lua_getstate(), cnf);
|
|
}
|
|
|
|
|
|
/**
|
|
* Handle HTTP Credentials
|
|
*
|
|
* @return - return 0 iff credentials are found and handled successfully
|
|
* return 1 iff credentials aren't found
|
|
* return 2 iff an error occured
|
|
*/
|
|
static int enduser_setup_http_handle_credentials(char *data, unsigned short data_len)
|
|
{
|
|
ENDUSER_SETUP_DEBUG("enduser_setup_http_handle_credentials");
|
|
|
|
char *name_str = (char *) ((uint32_t)strstr(&(data[6]), "wifi_ssid="));
|
|
char *pwd_str = (char *) ((uint32_t)strstr(&(data[6]), "wifi_password="));
|
|
if (name_str == NULL || pwd_str == NULL)
|
|
{
|
|
ENDUSER_SETUP_DEBUG("Password or SSID string not found");
|
|
return 1;
|
|
}
|
|
|
|
int name_field_len = LITLEN("wifi_ssid=");
|
|
int pwd_field_len = LITLEN("wifi_password=");
|
|
char *name_str_start = name_str + name_field_len;
|
|
char *pwd_str_start = pwd_str + pwd_field_len;
|
|
|
|
int name_str_len = enduser_setup_srch_str(name_str_start, "& ");
|
|
int pwd_str_len = enduser_setup_srch_str(pwd_str_start, "& ");
|
|
if (name_str_len == -1 || pwd_str_len == -1)
|
|
{
|
|
ENDUSER_SETUP_DEBUG("Password or SSID HTTP paramter divider not found");
|
|
return 1;
|
|
}
|
|
|
|
|
|
struct station_config *cnf = luaM_malloc(lua_getstate(), sizeof(struct station_config));
|
|
c_memset(cnf, 0, sizeof(struct station_config));
|
|
|
|
int err;
|
|
err = enduser_setup_http_urldecode(cnf->ssid, name_str_start, name_str_len, sizeof(cnf->ssid));
|
|
err |= enduser_setup_http_urldecode(cnf->password, pwd_str_start, pwd_str_len, sizeof(cnf->password));
|
|
if (err != 0)
|
|
{
|
|
ENDUSER_SETUP_DEBUG("Unable to decode HTTP parameter to valid password or SSID");
|
|
return 1;
|
|
}
|
|
|
|
|
|
ENDUSER_SETUP_DEBUG("");
|
|
ENDUSER_SETUP_DEBUG("WiFi Credentials Stored");
|
|
ENDUSER_SETUP_DEBUG("-----------------------");
|
|
ENDUSER_SETUP_DEBUG("name: ");
|
|
ENDUSER_SETUP_DEBUG(cnf->ssid);
|
|
ENDUSER_SETUP_DEBUG("pass: ");
|
|
ENDUSER_SETUP_DEBUG(cnf->password);
|
|
ENDUSER_SETUP_DEBUG("-----------------------");
|
|
ENDUSER_SETUP_DEBUG("");
|
|
|
|
task_post_medium(do_station_cfg_handle, (task_param_t) cnf);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**
|
|
* Serve HTML
|
|
*
|
|
* @return - return 0 iff html was served successfully
|
|
*/
|
|
static int enduser_setup_http_serve_header(struct tcp_pcb *http_client, const char *header, uint32_t header_len)
|
|
{
|
|
ENDUSER_SETUP_DEBUG("enduser_setup_http_serve_header");
|
|
|
|
err_t err = tcp_write (http_client, header, header_len, TCP_WRITE_FLAG_COPY);
|
|
if (err != ERR_OK)
|
|
{
|
|
deferred_close (http_client);
|
|
ENDUSER_SETUP_ERROR("http_serve_header failed on tcp_write", ENDUSER_SETUP_ERR_UNKOWN_ERROR, ENDUSER_SETUP_ERR_NONFATAL);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static err_t streamout_sent (void *arg, struct tcp_pcb *pcb, u16_t len)
|
|
{
|
|
(void)len;
|
|
|
|
unsigned offs = (unsigned)arg;
|
|
|
|
if (!state || !state->http_payload_data)
|
|
{
|
|
tcp_abort (pcb);
|
|
return ERR_ABRT;
|
|
}
|
|
|
|
unsigned wanted_len = state->http_payload_len - offs;
|
|
unsigned buf_free = tcp_sndbuf (pcb);
|
|
if (buf_free < wanted_len)
|
|
wanted_len = buf_free;
|
|
|
|
/* no-copy write */
|
|
err_t err = tcp_write (pcb, state->http_payload_data + offs, wanted_len, 0);
|
|
if (err != ERR_OK)
|
|
{
|
|
ENDUSER_SETUP_DEBUG("streaming out html failed");
|
|
tcp_abort (pcb);
|
|
return ERR_ABRT;
|
|
}
|
|
|
|
offs += wanted_len;
|
|
|
|
if (offs >= state->http_payload_len)
|
|
{
|
|
tcp_sent (pcb, 0);
|
|
deferred_close (pcb);
|
|
}
|
|
else
|
|
tcp_arg (pcb, (void *)offs);
|
|
|
|
return ERR_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Serve HTML
|
|
*
|
|
* @return - return 0 iff html was served successfully
|
|
*/
|
|
static int enduser_setup_http_serve_html(struct tcp_pcb *http_client)
|
|
{
|
|
ENDUSER_SETUP_DEBUG("enduser_setup_http_serve_html");
|
|
if (state->http_payload_data == NULL)
|
|
{
|
|
enduser_setup_http_load_payload();
|
|
}
|
|
|
|
unsigned chunklen = tcp_sndbuf (http_client);
|
|
tcp_arg (http_client, (void *)chunklen);
|
|
tcp_recv (http_client, 0); /* avoid confusion about the tcp_arg */
|
|
tcp_sent (http_client, streamout_sent);
|
|
/* Begin the no-copy stream-out here */
|
|
err_t err = tcp_write (http_client, state->http_payload_data, chunklen, 0);
|
|
if (err != 0)
|
|
{
|
|
ENDUSER_SETUP_ERROR("http_serve_html failed. tcp_write failed", ENDUSER_SETUP_ERR_UNKOWN_ERROR, ENDUSER_SETUP_ERR_NONFATAL);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static void serve_status(struct tcp_pcb *conn)
|
|
{
|
|
ENDUSER_SETUP_DEBUG("enduser_setup_serve_status");
|
|
|
|
const char fmt[] =
|
|
"HTTP/1.1 200 OK\r\n"
|
|
"Cache-control:no-cache\r\n"
|
|
"Connection:close\r\n"
|
|
"Content-type:text/plain\r\n"
|
|
"Content-length: %d\r\n"
|
|
"\r\n"
|
|
"%s%s";
|
|
const char *state[] =
|
|
{
|
|
"Idle.",
|
|
"Connecting to \"%s\".",
|
|
"Failed to connect to \"%s\" - Wrong password.",
|
|
"Failed to connect to \"%s\" - Network not found.",
|
|
"Failed to connect.",
|
|
"Connected to \"%s\" (%s)."
|
|
};
|
|
|
|
const size_t num_states = sizeof(state)/sizeof(state[0]);
|
|
uint8_t curr_state = wifi_station_get_connect_status ();
|
|
if (curr_state < num_states)
|
|
{
|
|
switch (curr_state)
|
|
{
|
|
case STATION_CONNECTING:
|
|
case STATION_WRONG_PASSWORD:
|
|
case STATION_NO_AP_FOUND:
|
|
case STATION_GOT_IP:
|
|
{
|
|
const char *s = state[curr_state];
|
|
struct station_config config;
|
|
wifi_station_get_config(&config);
|
|
config.ssid[31] = '\0';
|
|
|
|
struct ip_info ip_info;
|
|
|
|
wifi_get_ip_info(STATION_IF , &ip_info);
|
|
|
|
char ip_addr[16];
|
|
ip_addr[0] = '\0';
|
|
if (curr_state == STATION_GOT_IP)
|
|
{
|
|
c_sprintf (ip_addr, "%d.%d.%d.%d", IP2STR(&ip_info.ip.addr));
|
|
}
|
|
|
|
|
|
int state_len = c_strlen(s);
|
|
int ip_len = c_strlen(ip_addr);
|
|
int ssid_len = c_strlen(config.ssid);
|
|
int status_len = state_len + ssid_len + ip_len + 1;
|
|
char status_buf[status_len];
|
|
memset(status_buf, 0, status_len);
|
|
status_len = c_sprintf(status_buf, s, config.ssid, ip_addr);
|
|
|
|
int buf_len = sizeof(fmt) + status_len + 10; //10 = (9+1), 1 byte is '\0' and 9 are reserved for length field
|
|
char buf[buf_len];
|
|
memset(buf, 0, buf_len);
|
|
int output_len = c_sprintf(buf, fmt, status_len, status_buf);
|
|
|
|
enduser_setup_http_serve_header(conn, buf, output_len);
|
|
}
|
|
break;
|
|
|
|
/* Handle non-formatted strings */
|
|
default:
|
|
{
|
|
const char *s = state[curr_state];
|
|
int status_len = c_strlen(s);
|
|
int buf_len = sizeof(fmt) + status_len + 10; //10 = (9+1), 1 byte is '\0' and 9 are reserved for length field
|
|
char buf[buf_len];
|
|
memset(buf, 0, buf_len);
|
|
int output_len = c_sprintf(buf, fmt, status_len, s);
|
|
|
|
enduser_setup_http_serve_header(conn, buf, output_len);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
enduser_setup_http_serve_header(conn, http_header_500, LITLEN(http_header_500));
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/* --- WiFi AP scanning support -------------------------------------------- */
|
|
|
|
static void free_scan_listeners (void)
|
|
{
|
|
if (!state || !state->scan_listeners)
|
|
{
|
|
return;
|
|
}
|
|
|
|
scan_listener_t *l = state->scan_listeners , *next = 0;
|
|
while (l)
|
|
{
|
|
next = l->next;
|
|
c_free (l);
|
|
l = next;
|
|
}
|
|
state->scan_listeners = 0;
|
|
}
|
|
|
|
|
|
static void remove_scan_listener (scan_listener_t *l)
|
|
{
|
|
if (state)
|
|
{
|
|
scan_listener_t **sl = &state->scan_listeners;
|
|
while (*sl)
|
|
{
|
|
/* Remove any and all references to the closed conn from the scan list */
|
|
if (*sl == l)
|
|
{
|
|
*sl = l->next;
|
|
c_free (l);
|
|
/* No early exit to guard against multi-entry on list */
|
|
}
|
|
else
|
|
sl = &(*sl)->next;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static char *escape_ssid (char *dst, const char *src)
|
|
{
|
|
for (int i = 0; i < 32 && src[i]; ++i)
|
|
{
|
|
if (src[i] == '\\' || src[i] == '"')
|
|
{
|
|
*dst++ = '\\';
|
|
}
|
|
*dst++ = src[i];
|
|
}
|
|
return dst;
|
|
}
|
|
|
|
|
|
static void notify_scan_listeners (const char *payload, size_t sz)
|
|
{
|
|
if (!state)
|
|
{
|
|
return;
|
|
}
|
|
|
|
for (scan_listener_t *l = state->scan_listeners; l; l = l->next)
|
|
{
|
|
if (tcp_write (l->conn, payload, sz, TCP_WRITE_FLAG_COPY) != ERR_OK)
|
|
{
|
|
ENDUSER_SETUP_DEBUG("failed to send wifi list");
|
|
tcp_abort (l->conn);
|
|
}
|
|
else
|
|
tcp_sent (l->conn, close_once_sent); /* TODO: time-out sends? */
|
|
l->conn = 0;
|
|
}
|
|
|
|
free_scan_listeners ();
|
|
}
|
|
|
|
|
|
static void on_scan_done (void *arg, STATUS status)
|
|
{
|
|
if (!state || !state->scan_listeners)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (status == OK)
|
|
{
|
|
unsigned num_nets = 0;
|
|
for (struct bss_info *wn = arg; wn; wn = wn->next.stqe_next)
|
|
{
|
|
++num_nets;
|
|
}
|
|
|
|
const char header_fmt[] =
|
|
"HTTP/1.1 200 OK\r\n"
|
|
"Connection:close\r\n"
|
|
"Cache-control:no-cache\r\n"
|
|
"Content-type:application/json\r\n"
|
|
"Content-length:%4d\r\n"
|
|
"\r\n";
|
|
const size_t hdr_sz = sizeof (header_fmt) +1 -1; /* +expand %4d, -\0 */
|
|
|
|
/* To be able to safely escape a pathological SSID, we need 2*32 bytes */
|
|
const size_t max_entry_sz = sizeof("{\"ssid\":\"\",\"rssi\":},") + 2*32 + 6;
|
|
const size_t alloc_sz = hdr_sz + num_nets * max_entry_sz + 3;
|
|
char *http = os_zalloc (alloc_sz);
|
|
if (!http)
|
|
{
|
|
goto serve_500;
|
|
}
|
|
|
|
char *p = http + hdr_sz; /* start body where we know it will be */
|
|
/* p[0] will be clobbered when we print the header, so fill it in last */
|
|
++p;
|
|
for (struct bss_info *wn = arg; wn; wn = wn->next.stqe_next)
|
|
{
|
|
if (wn != arg)
|
|
{
|
|
*p++ = ',';
|
|
}
|
|
|
|
const char entry_start[] = "{\"ssid\":\"";
|
|
strcpy (p, entry_start);
|
|
p += sizeof (entry_start) -1;
|
|
|
|
p = escape_ssid (p, wn->ssid);
|
|
|
|
const char entry_mid[] = "\",\"rssi\":";
|
|
strcpy (p, entry_mid);
|
|
p += sizeof (entry_mid) -1;
|
|
|
|
p += c_sprintf (p, "%d", wn->rssi);
|
|
|
|
*p++ = '}';
|
|
}
|
|
*p++ = ']';
|
|
|
|
size_t body_sz = (p - http) - hdr_sz;
|
|
c_sprintf (http, header_fmt, body_sz);
|
|
http[hdr_sz] = '['; /* Rewrite the \0 with the correct start of body */
|
|
|
|
notify_scan_listeners (http, hdr_sz + body_sz);
|
|
c_free (http);
|
|
return;
|
|
}
|
|
|
|
serve_500:
|
|
notify_scan_listeners (http_header_500, LITLEN(http_header_500));
|
|
}
|
|
|
|
/* ---- end WiFi AP scan support ------------------------------------------- */
|
|
|
|
static err_t enduser_setup_http_recvcb(void *arg, struct tcp_pcb *http_client, struct pbuf *p, err_t err)
|
|
{
|
|
ENDUSER_SETUP_DEBUG("enduser_setup_http_recvcb");
|
|
|
|
if (!state || err != ERR_OK)
|
|
{
|
|
if (!state)
|
|
ENDUSER_SETUP_DEBUG("ignoring received data while stopped");
|
|
tcp_abort (http_client);
|
|
return ERR_ABRT;
|
|
}
|
|
|
|
if (!p) /* remote side closed, close our end too */
|
|
{
|
|
ENDUSER_SETUP_DEBUG("connection closed");
|
|
scan_listener_t *l = arg; /* if it's waiting for scan, we have a ptr here */
|
|
if (l)
|
|
remove_scan_listener (l);
|
|
|
|
deferred_close (http_client);
|
|
return ERR_OK;
|
|
}
|
|
|
|
char *data = os_zalloc (p->tot_len + 1);
|
|
if (!data)
|
|
return ERR_MEM;
|
|
|
|
unsigned data_len = pbuf_copy_partial (p, data, p->tot_len, 0);
|
|
tcp_recved (http_client, p->tot_len);
|
|
pbuf_free (p);
|
|
|
|
err_t ret = ERR_OK;
|
|
if (c_strncmp(data, "GET ", 4) == 0)
|
|
{
|
|
if (c_strncmp(data + 4, "/ ", 2) == 0)
|
|
{
|
|
if (enduser_setup_http_serve_html(http_client) != 0)
|
|
{
|
|
ENDUSER_SETUP_ERROR("http_recvcb failed. Unable to send HTML.", ENDUSER_SETUP_ERR_UNKOWN_ERROR, ENDUSER_SETUP_ERR_NONFATAL);
|
|
}
|
|
else
|
|
{
|
|
goto free_out; /* streaming now in progress */
|
|
}
|
|
}
|
|
else if (c_strncmp(data + 4, "/aplist ", 8) == 0)
|
|
{
|
|
scan_listener_t *l = os_malloc (sizeof (scan_listener_t));
|
|
if (!l)
|
|
{
|
|
ENDUSER_SETUP_ERROR("out of memory", ENDUSER_SETUP_ERR_OUT_OF_MEMORY, ENDUSER_SETUP_ERR_NONFATAL);
|
|
}
|
|
|
|
bool already = (state->scan_listeners != NULL);
|
|
|
|
tcp_arg (http_client, l);
|
|
/* TODO: check if also need a tcp_err() cb, or if recv() is enough */
|
|
l->conn = http_client;
|
|
l->next = state->scan_listeners;
|
|
state->scan_listeners = l;
|
|
|
|
if (!already)
|
|
{
|
|
if (!wifi_station_scan(NULL, on_scan_done))
|
|
{
|
|
enduser_setup_http_serve_header(http_client, http_header_500, LITLEN(http_header_500));
|
|
deferred_close (l->conn);
|
|
l->conn = 0;
|
|
free_scan_listeners();
|
|
}
|
|
}
|
|
goto free_out; /* request queued */
|
|
}
|
|
else if (c_strncmp(data + 4, "/status ", 8) == 0)
|
|
{
|
|
serve_status(http_client);
|
|
}
|
|
else if (c_strncmp(data + 4, "/update?", 8) == 0)
|
|
{
|
|
switch (enduser_setup_http_handle_credentials(data, data_len))
|
|
{
|
|
case 0:
|
|
enduser_setup_http_serve_header(http_client, http_header_302, LITLEN(http_header_302));
|
|
break;
|
|
case 1:
|
|
enduser_setup_http_serve_header(http_client, http_header_401, LITLEN(http_header_401));
|
|
break;
|
|
default:
|
|
ENDUSER_SETUP_ERROR("http_recvcb failed. Failed to handle wifi credentials.", ENDUSER_SETUP_ERR_UNKOWN_ERROR, ENDUSER_SETUP_ERR_NONFATAL);
|
|
break;
|
|
}
|
|
}
|
|
else if (c_strncmp(data + 4, "/generate_204 ", 14) == 0)
|
|
{
|
|
/* Convince Android devices that they have internet access to avoid pesky dialogues. */
|
|
enduser_setup_http_serve_header(http_client, http_header_204, LITLEN(http_header_204));
|
|
}
|
|
else
|
|
{
|
|
ENDUSER_SETUP_DEBUG("serving 404");
|
|
ENDUSER_SETUP_DEBUG(data + 4);
|
|
enduser_setup_http_serve_header(http_client, http_header_404, LITLEN(http_header_404));
|
|
}
|
|
}
|
|
else /* not GET */
|
|
{
|
|
enduser_setup_http_serve_header(http_client, http_header_401, LITLEN(http_header_401));
|
|
}
|
|
|
|
deferred_close (http_client);
|
|
|
|
free_out:
|
|
os_free (data);
|
|
return ret;
|
|
}
|
|
|
|
static err_t enduser_setup_http_connectcb(void *arg, struct tcp_pcb *pcb, err_t err)
|
|
{
|
|
ENDUSER_SETUP_DEBUG("enduser_setup_http_connectcb");
|
|
if (!state)
|
|
{
|
|
ENDUSER_SETUP_DEBUG("connect callback but no state?!");
|
|
tcp_abort (pcb);
|
|
return ERR_ABRT;
|
|
}
|
|
|
|
tcp_accepted (state->http_pcb);
|
|
tcp_recv (pcb, enduser_setup_http_recvcb);
|
|
tcp_nagle_disable (pcb);
|
|
return ERR_OK;
|
|
}
|
|
|
|
|
|
static int enduser_setup_http_start(void)
|
|
{
|
|
ENDUSER_SETUP_DEBUG("enduser_setup_http_start");
|
|
struct tcp_pcb *pcb = tcp_new ();
|
|
if (pcb == NULL)
|
|
{
|
|
ENDUSER_SETUP_ERROR("http_start failed. Memory allocation failed (http_pcb == NULL).", ENDUSER_SETUP_ERR_OUT_OF_MEMORY, ENDUSER_SETUP_ERR_FATAL);
|
|
}
|
|
|
|
if (tcp_bind (pcb, IP_ADDR_ANY, 80) != ERR_OK)
|
|
{
|
|
ENDUSER_SETUP_ERROR("http_start bind failed", ENDUSER_SETUP_ERR_SOCKET_ALREADY_OPEN, ENDUSER_SETUP_ERR_FATAL);
|
|
}
|
|
|
|
state->http_pcb = tcp_listen (pcb);
|
|
if (!state->http_pcb)
|
|
{
|
|
tcp_abort(pcb); /* original wasn't freed for us */
|
|
ENDUSER_SETUP_ERROR("http_start listen failed", ENDUSER_SETUP_ERR_SOCKET_ALREADY_OPEN, ENDUSER_SETUP_ERR_FATAL);
|
|
}
|
|
|
|
tcp_accept (state->http_pcb, enduser_setup_http_connectcb);
|
|
|
|
/* TODO: check lwip tcp timeouts */
|
|
#if 0
|
|
err = espconn_regist_time(state->espconn_http_tcp, 2, 0);
|
|
if (err == ESPCONN_ARG)
|
|
{
|
|
ENDUSER_SETUP_ERROR("http_start failed. Unable to set TCP timeout.", ENDUSER_SETUP_ERR_CONNECTION_NOT_FOUND, ENDUSER_SETUP_ERR_NONFATAL | ENDUSER_SETUP_ERR_NO_RETURN);
|
|
}
|
|
#endif
|
|
|
|
int err = enduser_setup_http_load_payload();
|
|
if (err == 1)
|
|
{
|
|
ENDUSER_SETUP_DEBUG("enduser_setup_http_start info. Loaded backup HTML.");
|
|
}
|
|
else if (err == 2)
|
|
{
|
|
ENDUSER_SETUP_ERROR("http_start failed. Unable to allocate memory for HTTP payload.", ENDUSER_SETUP_ERR_OUT_OF_MEMORY, ENDUSER_SETUP_ERR_FATAL);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static void enduser_setup_http_stop(void)
|
|
{
|
|
ENDUSER_SETUP_DEBUG("enduser_setup_http_stop");
|
|
|
|
if (state && state->http_pcb)
|
|
{
|
|
tcp_close (state->http_pcb); /* cannot fail for listening sockets */
|
|
state->http_pcb = 0;
|
|
}
|
|
}
|
|
|
|
static void enduser_setup_ap_stop(void)
|
|
{
|
|
ENDUSER_SETUP_DEBUG("enduser_setup_station_stop");
|
|
|
|
wifi_set_opmode(~SOFTAP_MODE & wifi_get_opmode());
|
|
}
|
|
|
|
|
|
static void enduser_setup_ap_start(void)
|
|
{
|
|
ENDUSER_SETUP_DEBUG("enduser_setup_ap_start");
|
|
|
|
struct softap_config cnf;
|
|
c_memset(&(cnf), 0, sizeof(struct softap_config));
|
|
|
|
#ifndef ENDUSER_SETUP_AP_SSID
|
|
#define ENDUSER_SETUP_AP_SSID "SetupGadget"
|
|
#endif
|
|
|
|
char ssid[] = ENDUSER_SETUP_AP_SSID;
|
|
int ssid_name_len = c_strlen(ssid);
|
|
c_memcpy(&(cnf.ssid), ssid, ssid_name_len);
|
|
|
|
uint8_t mac[6];
|
|
wifi_get_macaddr(SOFTAP_IF, mac);
|
|
cnf.ssid[ssid_name_len] = '_';
|
|
c_sprintf(cnf.ssid + ssid_name_len + 1, "%02X%02X%02X", mac[3], mac[4], mac[5]);
|
|
cnf.ssid_len = ssid_name_len + 7;
|
|
cnf.channel = 1;
|
|
cnf.authmode = AUTH_OPEN;
|
|
cnf.ssid_hidden = 0;
|
|
cnf.max_connection = 5;
|
|
cnf.beacon_interval = 100;
|
|
wifi_set_opmode(STATIONAP_MODE);
|
|
wifi_softap_set_config(&cnf);
|
|
}
|
|
|
|
|
|
static void enduser_setup_dns_recv_callback(void *arg, char *recv_data, unsigned short recv_len)
|
|
{
|
|
ENDUSER_SETUP_DEBUG("enduser_setup_dns_recv_callback.");
|
|
|
|
struct espconn *callback_espconn = arg;
|
|
struct ip_info ip_info;
|
|
|
|
uint32_t qname_len = c_strlen(&(recv_data[12])) + 1; // \0=1byte
|
|
uint32_t dns_reply_static_len = (uint32_t) sizeof(dns_header) + (uint32_t) sizeof(dns_body) + 2 + 4; // dns_id=2bytes, ip=4bytes
|
|
uint32_t dns_reply_len = dns_reply_static_len + qname_len;
|
|
|
|
uint8_t if_mode = wifi_get_opmode();
|
|
if ((if_mode & SOFTAP_MODE) == 0)
|
|
{
|
|
ENDUSER_SETUP_ERROR_VOID("dns_recv_callback failed. Interface mode not supported.", ENDUSER_SETUP_ERR_UNKOWN_ERROR, ENDUSER_SETUP_ERR_FATAL);
|
|
}
|
|
|
|
uint8_t if_index = (if_mode == STATION_MODE? STATION_IF : SOFTAP_IF);
|
|
if (wifi_get_ip_info(if_index , &ip_info) == false)
|
|
{
|
|
ENDUSER_SETUP_ERROR_VOID("dns_recv_callback failed. Unable to get interface IP.", ENDUSER_SETUP_ERR_UNKOWN_ERROR, ENDUSER_SETUP_ERR_FATAL);
|
|
}
|
|
|
|
|
|
char *dns_reply = (char *) c_malloc(dns_reply_len);
|
|
if (dns_reply == NULL)
|
|
{
|
|
ENDUSER_SETUP_ERROR_VOID("dns_recv_callback failed. Failed to allocate memory.", ENDUSER_SETUP_ERR_OUT_OF_MEMORY, ENDUSER_SETUP_ERR_NONFATAL);
|
|
}
|
|
|
|
uint32_t insert_byte = 0;
|
|
c_memcpy(&(dns_reply[insert_byte]), recv_data, 2);
|
|
insert_byte += 2;
|
|
c_memcpy(&(dns_reply[insert_byte]), dns_header, sizeof(dns_header));
|
|
insert_byte += (uint32_t) sizeof(dns_header);
|
|
c_memcpy(&(dns_reply[insert_byte]), &(recv_data[12]), qname_len);
|
|
insert_byte += qname_len;
|
|
c_memcpy(&(dns_reply[insert_byte]), dns_body, sizeof(dns_body));
|
|
insert_byte += (uint32_t) sizeof(dns_body);
|
|
c_memcpy(&(dns_reply[insert_byte]), &(ip_info.ip), 4);
|
|
|
|
// SDK 1.4.0 changed behaviour, for UDP server need to look up remote ip/port
|
|
remot_info *pr = 0;
|
|
if (espconn_get_connection_info(callback_espconn, &pr, 0) != ESPCONN_OK)
|
|
{
|
|
ENDUSER_SETUP_ERROR_VOID("dns_recv_callback failed. Unable to get IP of UDP sender.", ENDUSER_SETUP_ERR_CONNECTION_NOT_FOUND, ENDUSER_SETUP_ERR_FATAL);
|
|
}
|
|
callback_espconn->proto.udp->remote_port = pr->remote_port;
|
|
os_memmove(callback_espconn->proto.udp->remote_ip, pr->remote_ip, 4);
|
|
|
|
int8_t err;
|
|
err = espconn_send(callback_espconn, dns_reply, dns_reply_len);
|
|
c_free(dns_reply);
|
|
if (err == ESPCONN_MEM)
|
|
{
|
|
ENDUSER_SETUP_ERROR_VOID("dns_recv_callback failed. Failed to allocate memory for send.", ENDUSER_SETUP_ERR_OUT_OF_MEMORY, ENDUSER_SETUP_ERR_FATAL);
|
|
}
|
|
else if (err == ESPCONN_ARG)
|
|
{
|
|
ENDUSER_SETUP_ERROR_VOID("dns_recv_callback failed. Can't execute transmission.", ENDUSER_SETUP_ERR_CONNECTION_NOT_FOUND, ENDUSER_SETUP_ERR_FATAL);
|
|
}
|
|
else if (err != 0)
|
|
{
|
|
ENDUSER_SETUP_ERROR_VOID("dns_recv_callback failed. espconn_send failed", ENDUSER_SETUP_ERR_UNKOWN_ERROR, ENDUSER_SETUP_ERR_FATAL);
|
|
}
|
|
}
|
|
|
|
|
|
static void enduser_setup_free(void)
|
|
{
|
|
ENDUSER_SETUP_DEBUG("enduser_setup_free");
|
|
|
|
if (state == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
/* Make sure no running timers are left. */
|
|
os_timer_disarm(&(state->check_station_timer));
|
|
os_timer_disarm(&(state->shutdown_timer));
|
|
|
|
if (state->espconn_dns_udp != NULL)
|
|
{
|
|
if (state->espconn_dns_udp->proto.udp != NULL)
|
|
{
|
|
c_free(state->espconn_dns_udp->proto.udp);
|
|
}
|
|
c_free(state->espconn_dns_udp);
|
|
}
|
|
|
|
c_free(state->http_payload_data);
|
|
|
|
free_scan_listeners ();
|
|
|
|
c_free(state);
|
|
state = NULL;
|
|
}
|
|
|
|
|
|
static int enduser_setup_dns_start(void)
|
|
{
|
|
ENDUSER_SETUP_DEBUG("enduser_setup_dns_start");
|
|
|
|
if (state->espconn_dns_udp != NULL)
|
|
{
|
|
ENDUSER_SETUP_ERROR("dns_start failed. Appears to already be started (espconn_dns_udp != NULL).", ENDUSER_SETUP_ERR_UNKOWN_ERROR, ENDUSER_SETUP_ERR_FATAL);
|
|
}
|
|
state->espconn_dns_udp = (struct espconn *) c_malloc(sizeof(struct espconn));
|
|
if (state->espconn_dns_udp == NULL)
|
|
{
|
|
ENDUSER_SETUP_ERROR("dns_start failed. Memory allocation failed (espconn_dns_udp == NULL).", ENDUSER_SETUP_ERR_OUT_OF_MEMORY, ENDUSER_SETUP_ERR_FATAL);
|
|
}
|
|
|
|
esp_udp *esp_udp_data = (esp_udp *) c_malloc(sizeof(esp_udp));
|
|
if (esp_udp_data == NULL)
|
|
{
|
|
ENDUSER_SETUP_ERROR("dns_start failed. Memory allocation failed (esp_udp == NULL).", ENDUSER_SETUP_ERR_OUT_OF_MEMORY, ENDUSER_SETUP_ERR_FATAL);
|
|
}
|
|
|
|
c_memset(state->espconn_dns_udp, 0, sizeof(struct espconn));
|
|
c_memset(esp_udp_data, 0, sizeof(esp_udp));
|
|
state->espconn_dns_udp->proto.udp = esp_udp_data;
|
|
state->espconn_dns_udp->type = ESPCONN_UDP;
|
|
state->espconn_dns_udp->state = ESPCONN_NONE;
|
|
esp_udp_data->local_port = 53;
|
|
|
|
int8_t err;
|
|
err = espconn_regist_recvcb(state->espconn_dns_udp, enduser_setup_dns_recv_callback);
|
|
if (err != 0)
|
|
{
|
|
ENDUSER_SETUP_ERROR("dns_start failed. Couldn't add receive callback, unknown error.", ENDUSER_SETUP_ERR_UNKOWN_ERROR, ENDUSER_SETUP_ERR_FATAL);
|
|
}
|
|
|
|
err = espconn_create(state->espconn_dns_udp);
|
|
if (err == ESPCONN_ISCONN)
|
|
{
|
|
ENDUSER_SETUP_ERROR("dns_start failed. Couldn't create connection, already listening for that connection.", ENDUSER_SETUP_ERR_SOCKET_ALREADY_OPEN, ENDUSER_SETUP_ERR_FATAL);
|
|
}
|
|
else if (err == ESPCONN_MEM)
|
|
{
|
|
ENDUSER_SETUP_ERROR("dns_start failed. Couldn't create connection, out of memory.", ENDUSER_SETUP_ERR_OUT_OF_MEMORY, ENDUSER_SETUP_ERR_FATAL);
|
|
}
|
|
else if (err != 0)
|
|
{
|
|
ENDUSER_SETUP_ERROR("dns_start failed. Couldn't create connection, unknown error.", ENDUSER_SETUP_ERR_UNKOWN_ERROR, ENDUSER_SETUP_ERR_FATAL);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static void enduser_setup_dns_stop(void)
|
|
{
|
|
ENDUSER_SETUP_DEBUG("enduser_setup_dns_stop");
|
|
|
|
if (state != NULL && state->espconn_dns_udp != NULL)
|
|
{
|
|
espconn_delete(state->espconn_dns_udp);
|
|
}
|
|
}
|
|
|
|
|
|
static int enduser_setup_init(lua_State *L)
|
|
{
|
|
ENDUSER_SETUP_DEBUG("enduser_setup_init");
|
|
|
|
if (state != NULL)
|
|
{
|
|
ENDUSER_SETUP_ERROR("init failed. Appears to already be started.", ENDUSER_SETUP_ERR_UNKOWN_ERROR, ENDUSER_SETUP_ERR_FATAL);
|
|
return ENDUSER_SETUP_ERR_UNKOWN_ERROR;
|
|
}
|
|
|
|
state = (enduser_setup_state_t *) os_zalloc(sizeof(enduser_setup_state_t));
|
|
if (state == NULL)
|
|
{
|
|
ENDUSER_SETUP_ERROR("init failed. Unable to allocate memory.", ENDUSER_SETUP_ERR_OUT_OF_MEMORY, ENDUSER_SETUP_ERR_FATAL);
|
|
return ENDUSER_SETUP_ERR_OUT_OF_MEMORY;
|
|
}
|
|
c_memset(state, 0, sizeof(enduser_setup_state_t));
|
|
|
|
state->lua_connected_cb_ref = LUA_NOREF;
|
|
state->lua_err_cb_ref = LUA_NOREF;
|
|
state->lua_dbg_cb_ref = LUA_NOREF;
|
|
|
|
if (!lua_isnoneornil(L, 1))
|
|
{
|
|
lua_pushvalue(L, 1);
|
|
state->lua_connected_cb_ref = luaL_ref(L, LUA_REGISTRYINDEX);
|
|
}
|
|
else
|
|
{
|
|
state->lua_connected_cb_ref = LUA_NOREF;
|
|
}
|
|
|
|
if (!lua_isnoneornil(L, 2))
|
|
{
|
|
lua_pushvalue (L, 2);
|
|
state->lua_err_cb_ref = luaL_ref(L, LUA_REGISTRYINDEX);
|
|
}
|
|
else
|
|
{
|
|
state->lua_err_cb_ref = LUA_NOREF;
|
|
}
|
|
|
|
if (!lua_isnoneornil(L, 3))
|
|
{
|
|
lua_pushvalue (L, 3);
|
|
state->lua_dbg_cb_ref = luaL_ref(L, LUA_REGISTRYINDEX);
|
|
}
|
|
else
|
|
{
|
|
state->lua_dbg_cb_ref = LUA_NOREF;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int enduser_setup_manual(lua_State *L)
|
|
{
|
|
if (!lua_isnoneornil (L, 1))
|
|
{
|
|
manual = lua_toboolean (L, 1);
|
|
}
|
|
lua_pushboolean (L, manual);
|
|
return 1;
|
|
}
|
|
|
|
|
|
static int enduser_setup_start(lua_State *L)
|
|
{
|
|
ENDUSER_SETUP_DEBUG("enduser_setup_start");
|
|
|
|
if (!do_station_cfg_handle)
|
|
{
|
|
do_station_cfg_handle = task_get_id(do_station_cfg);
|
|
}
|
|
|
|
if(enduser_setup_init(L))
|
|
{
|
|
goto failed;
|
|
}
|
|
|
|
enduser_setup_check_station_start();
|
|
if (!manual)
|
|
{
|
|
enduser_setup_ap_start();
|
|
}
|
|
|
|
if(enduser_setup_dns_start())
|
|
{
|
|
goto failed;
|
|
}
|
|
|
|
if(enduser_setup_http_start())
|
|
{
|
|
goto failed;
|
|
}
|
|
|
|
goto out;
|
|
|
|
failed:
|
|
enduser_setup_stop(lua_getstate());
|
|
out:
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**
|
|
* A wrapper needed for type-reasons strictness reasons.
|
|
*/
|
|
static void enduser_setup_stop_callback(void *ptr)
|
|
{
|
|
enduser_setup_stop(lua_getstate());
|
|
}
|
|
|
|
|
|
static int enduser_setup_stop(lua_State* L)
|
|
{
|
|
ENDUSER_SETUP_DEBUG("enduser_setup_stop");
|
|
|
|
if (!manual)
|
|
{
|
|
enduser_setup_ap_stop();
|
|
}
|
|
enduser_setup_dns_stop();
|
|
enduser_setup_http_stop();
|
|
enduser_setup_free();
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static const LUA_REG_TYPE enduser_setup_map[] = {
|
|
{ LSTRKEY( "manual" ), LFUNCVAL( enduser_setup_manual )},
|
|
{ LSTRKEY( "start" ), LFUNCVAL( enduser_setup_start )},
|
|
{ LSTRKEY( "stop" ), LFUNCVAL( enduser_setup_stop )},
|
|
{ LNILKEY, LNILVAL}
|
|
};
|
|
|
|
NODEMCU_MODULE(ENDUSER_SETUP, "enduser_setup", enduser_setup_map, NULL);
|