diff --git a/app/include/user_config.h b/app/include/user_config.h index b6686004..8773de69 100644 --- a/app/include/user_config.h +++ b/app/include/user_config.h @@ -70,6 +70,8 @@ #define LED_LOW_COUNT_DEFAULT 0 #endif +#define ENDUSER_SETUP_AP_SSID "SetupGadget" + #define STRBUF_DEFAULT_INCREMENT 32 #endif /* __USER_CONFIG_H__ */ diff --git a/app/include/user_modules.h b/app/include/user_modules.h index f054fc7a..c9e06f13 100644 --- a/app/include/user_modules.h +++ b/app/include/user_modules.h @@ -28,6 +28,7 @@ #define LUA_USE_MODULES_BIT #define LUA_USE_MODULES_MQTT #define LUA_USE_MODULES_COAP +//#define LUA_USE_MODULES_ENDUSER_SETUP // USE_DNS in dhcpserver.h needs to be enabled for this module to work. #define LUA_USE_MODULES_U8G //#define LUA_USE_MODULES_UCG // #define LUA_USE_MODULES_WS2801 diff --git a/app/modules/enduser_setup.c b/app/modules/enduser_setup.c new file mode 100644 index 00000000..8a2b49db --- /dev/null +++ b/app/modules/enduser_setup.c @@ -0,0 +1,936 @@ +/* + * Copyright 2015 Robert Foss. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the + * distribution. + * - Neither the name of the copyright holders nor the names of + * its contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * + * @author Robert Foss + */ + + +#include "lualib.h" +#include "lauxlib.h" +#include "platform.h" +#include "auxmods.h" +#include "lrotable.h" +#include "c_stdlib.h" +#include "c_string.h" +#include "user_interface.h" +#include "espconn.h" +#include "flash_fs.h" + + +#define MIN(x, y) (((x) < (y)) ? (x) : (y)) + +#define ENDUSER_SETUP_ERR_FATAL (1 << 0) +#define ENDUSER_SETUP_ERR_NONFATAL (1 << 1) +#define ENDUSER_SETUP_ERR_NO_RETURN (1 << 2) + +#define ENDUSER_SETUP_ERR_OUT_OF_MEMORY 1 +#define ENDUSER_SETUP_ERR_CONNECTION_NOT_FOUND 2 +#define ENDUSER_SETUP_ERR_UNKOWN_ERROR 3 +#define ENDUSER_SETUP_ERR_SOCKET_ALREADY_OPEN 4 + + +/** + * DNS Response Packet: + * + * |DNS ID - 16 bits| + * |dns_header| + * |QNAME| + * |dns_body| + * |ip - 32 bits| + * + * DNS Header Part | FLAGS | | Q COUNT | | A CNT | |AUTH CNT| | ADD CNT| */ +static const char dns_header[] = { 0x80, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 }; +/* DNS Query Part | Q TYPE | | Q CLASS| */ +static const char dns_body[] = { 0x00, 0x01, 0x00, 0x01, +/* DNS Answer Part |LBL OFFS| | TYPE | | CLASS | | TTL | | RD LEN | */ + 0xC0, 0x0C, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x78, 0x00, 0x04 }; + +static const char http_html_filename[] = "index.html"; +static const char http_header_200[] = "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n"; +static const char http_header_404[] = "HTTP/1.1 404 Not Found\r\n"; +static const char http_html_backup[] = "Connect gadget to you WiFi

WiFi Login

Connect gadget to your WiFi

"; + + +typedef struct +{ + lua_State *lua_L; + struct espconn *espconn_dns_udp; + struct espconn *espconn_http_tcp; + char *http_payload_data; + uint32_t http_payload_len; + os_timer_t check_station_timer; + int lua_connected_cb_ref; + int lua_err_cb_ref; + int lua_dbg_cb_ref; +} enduser_setup_state_t; + +static enduser_setup_state_t *state; + +static int enduser_setup_start(lua_State* L); +static int enduser_setup_stop(lua_State* L); +static void enduser_setup_station_start(void); +static void enduser_setup_station_start(void); +static void enduser_setup_ap_start(void); +static void enduser_setup_ap_stop(void); +static void enduser_setup_check_station(void); +static void enduser_setup_debug(lua_State *L, const char *str); + + +#define ENDUSER_SETUP_DEBUG_ENABLE 0 +#if ENDUSER_SETUP_DEBUG_ENABLE +#define ENDUSER_SETUP_DEBUG(l, str) enduser_setup_debug(l, str) +#else +#define ENDUSER_SETUP_DEBUG(l, str) +#endif + + +static void enduser_setup_debug(lua_State *L, const char *str) +{ + if(state != NULL && L != NULL && state->lua_dbg_cb_ref != LUA_NOREF) + { + lua_rawgeti(L, LUA_REGISTRYINDEX, state->lua_dbg_cb_ref); + lua_pushstring(L, str); + lua_call(L, 1, 0); + } +} + + +#define ENDUSER_SETUP_ERROR(str, err, err_severity) if (err_severity & ENDUSER_SETUP_ERR_FATAL) enduser_setup_stop(state->lua_L);\ + enduser_setup_error(state->lua_L, str, err);\ + if (!(err_severity & ENDUSER_SETUP_ERR_NO_RETURN)) return err + +#define ENDUSER_SETUP_ERROR_VOID(str, err, err_severity) if (err_severity & ENDUSER_SETUP_ERR_FATAL) enduser_setup_stop(state->lua_L);\ + enduser_setup_error(state->lua_L, str, err);\ + if (!(err_severity & ENDUSER_SETUP_ERR_NO_RETURN)) return + + +static void enduser_setup_error(lua_State *L, const char *str, int err) +{ + ENDUSER_SETUP_DEBUG(L, "enduser_setup_error"); + + if (state != NULL && L != NULL && state->lua_err_cb_ref != LUA_NOREF) + { + lua_rawgeti (L, LUA_REGISTRYINDEX, state->lua_err_cb_ref); + lua_pushnumber(L, err); + lua_pushstring(L, str); + lua_call (L, 2, 0); + } +} + + +static void enduser_setup_connected_callback(lua_State *L) +{ + ENDUSER_SETUP_DEBUG(L, "enduser_setup_connected_callback"); + + if(state != NULL && L != 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(state->lua_L, "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(state->lua_L, "enduser_setup_check_station_stop"); + + os_timer_disarm(&(state->check_station_timer)); +} + + +/** + * Check Station + * + * Check that we've successfully entered station mode. + */ +static void enduser_setup_check_station(void) +{ + 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; + } + + struct station_config cnf; + wifi_station_get_config(&cnf); + + enduser_setup_connected_callback(state->lua_L); + enduser_setup_stop(NULL); +} + + +/** + * 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) +{ + int srch_str_len = c_strlen(srch_str); + int first_hit = INT_MAX; + + int i; + for (i = 0; i < srch_str_len; ++i) + { + char *char_ptr = strchr(str, srch_str[i]); + if (char_ptr == NULL) + { + continue; + } + int char_idx = char_ptr - str; + first_hit = MIN(first_hit, char_idx); + } + if (first_hit == INT_MAX) + { + return -1; + } + return first_hit; +} + + +/** + * 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(state->lua_L, "enduser_setup_http_load_payload"); + + int f = fs_open(http_html_filename, fs_mode2flag("r")); + int err = fs_seek(f, 0, FS_SEEK_END); + int file_len = (int) fs_tell(f); + int err2 = fs_seek(f, 0, FS_SEEK_SET); + + if (f == 0 || err == -1 || err2 == -1) + { + ENDUSER_SETUP_DEBUG(state->lua_L, "enduser_setup_http_load_payload unable to load file index.html, loading backup HTML."); + + int payload_len = sizeof(http_header_200) + sizeof(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), sizeof(http_header_200)); + offset += sizeof(http_header_200); + c_memcpy(&(state->http_payload_data[offset]), &(http_html_backup), sizeof(http_html_backup)); + + return 1; + } + + int payload_len = sizeof(http_header_200) + 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), sizeof(http_header_200)); + offset += sizeof(http_header_200); + fs_read(f, &(state->http_payload_data[offset]), file_len); + + return 0; +} + + +/** + * De-escape URL data + * + * Parse escaped and form encoded data of request. + */ +static void enduser_setup_http_urldecode(char *dst, const char *src, int src_len) +{ + char a, b; + int i; + for (i = 0; i < src_len && *src; ++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'; +} + + +/** + * 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(state->lua_L, "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) + { + return 1; + } + + int name_field_len = sizeof("wifi_ssid=") - 1; + int pwd_field_len = sizeof("wifi_password=") - 1; + 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 || name_str_len > 31 || pwd_str_len > 63) + { + return 1; + } + + struct station_config cnf; + c_memset(&cnf, 0, sizeof(struct station_config)); + enduser_setup_http_urldecode(cnf.ssid, name_str_start, name_str_len); + enduser_setup_http_urldecode(cnf.password, pwd_str_start, pwd_str_len); + + int err = wifi_set_opmode(STATION_MODE | wifi_get_opmode()); + if (err == FALSE) + { + wifi_set_opmode(~STATION_MODE & wifi_get_opmode()); + ENDUSER_SETUP_ERROR("enduser_setup_station_start failed. wifi_set_opmode failed.", ENDUSER_SETUP_ERR_UNKOWN_ERROR, ENDUSER_SETUP_ERR_FATAL); + } + err = wifi_station_set_config(&cnf); + if (err == FALSE) + { + wifi_set_opmode(~STATION_MODE & wifi_get_opmode()); + ENDUSER_SETUP_ERROR("enduser_setup_station_start failed. wifi_station_set_config failed.", ENDUSER_SETUP_ERR_UNKOWN_ERROR, ENDUSER_SETUP_ERR_FATAL); + } + err = wifi_station_disconnect(); + if (err == FALSE) + { + ENDUSER_SETUP_ERROR_VOID("enduser_setup_station_start failed. wifi_station_disconnect failed.", ENDUSER_SETUP_ERR_UNKOWN_ERROR, ENDUSER_SETUP_ERR_NONFATAL); + } + err = wifi_station_connect(); + if (err == FALSE) + { + ENDUSER_SETUP_ERROR("enduser_setup_station_start failed. wifi_station_connect failed.\n", ENDUSER_SETUP_ERR_UNKOWN_ERROR, ENDUSER_SETUP_ERR_FATAL); + } + + ENDUSER_SETUP_DEBUG(state->lua_L, "WiFi Credentials Stored"); + ENDUSER_SETUP_DEBUG(state->lua_L, "-----------------------"); + ENDUSER_SETUP_DEBUG(state->lua_L, "name: "); + ENDUSER_SETUP_DEBUG(state->lua_L, cnf.ssid); + ENDUSER_SETUP_DEBUG(state->lua_L, "pass: "); + ENDUSER_SETUP_DEBUG(state->lua_L, cnf.password); + ENDUSER_SETUP_DEBUG(state->lua_L, "-----------------------"); + + return 0; +} + + +/** + * Serve HTML + * + * @return - return 0 iff html was served successfully + */ +static int enduser_setup_http_serve_header(struct espconn *http_client, char *header, uint32_t header_len) +{ + ENDUSER_SETUP_DEBUG(state->lua_L, "enduser_setup_http_serve_404"); + + int8_t err = espconn_sent(http_client, header, header_len); + if (err == ESPCONN_MEM) + { + ENDUSER_SETUP_ERROR("enduser_setup_http_serve_header failed. espconn_send out of memory", ENDUSER_SETUP_ERR_OUT_OF_MEMORY, ENDUSER_SETUP_ERR_NONFATAL); + } + else if (err == ESPCONN_ARG) + { + ENDUSER_SETUP_ERROR("enduser_setup_http_serve_header failed. espconn_send can't find network transmission", ENDUSER_SETUP_ERR_CONNECTION_NOT_FOUND, ENDUSER_SETUP_ERR_NONFATAL); + } + else if (err != 0) + { + ENDUSER_SETUP_ERROR("enduser_setup_http_serve_header failed. espconn_send failed", ENDUSER_SETUP_ERR_UNKOWN_ERROR, ENDUSER_SETUP_ERR_NONFATAL); + } + + return 0; +} + + +/** + * Serve HTML + * + * @return - return 0 iff html was served successfully + */ +static int enduser_setup_http_serve_html(struct espconn *http_client) +{ + ENDUSER_SETUP_DEBUG(state->lua_L, "enduser_setup_http_serve_html"); + + if (state->http_payload_data == NULL) + { + enduser_setup_http_load_payload(); + } + + int8_t err = espconn_sent(http_client, state->http_payload_data, state->http_payload_len); + if (err == ESPCONN_MEM) + { + ENDUSER_SETUP_ERROR("enduser_setup_http_serve_html failed. espconn_send out of memory", ENDUSER_SETUP_ERR_OUT_OF_MEMORY, ENDUSER_SETUP_ERR_NONFATAL); + } + else if (err == ESPCONN_ARG) + { + ENDUSER_SETUP_ERROR("enduser_setup_http_serve_html failed. espconn_send can't find network transmission", ENDUSER_SETUP_ERR_CONNECTION_NOT_FOUND, ENDUSER_SETUP_ERR_NONFATAL); + } + else if (err != 0) + { + ENDUSER_SETUP_ERROR("enduser_setup_http_serve_html failed. espconn_send failed", ENDUSER_SETUP_ERR_UNKOWN_ERROR, ENDUSER_SETUP_ERR_NONFATAL); + } + + return 0; +} + + +/** + * Disconnect HTTP client + * + * End TCP connection and free up resources. + */ +static void enduser_setup_http_disconnect(struct espconn *espconn) +{ + ENDUSER_SETUP_DEBUG(state->lua_L, "enduser_setup_http_disconnect"); +//TODO: Construct and maintain os task queue(?) to be able to issue system_os_task with espconn_disconnect. +} + + +static void enduser_setup_http_recvcb(void *arg, char *data, unsigned short data_len) +{ + ENDUSER_SETUP_DEBUG(state->lua_L, "enduser_setup_http_recvcb"); + struct espconn *http_client = (struct espconn *) arg; + int retval; + + if (c_strncmp(data, "POST ", 5) == 0) + { + retval = enduser_setup_http_handle_credentials(data, data_len); + if (retval == 0) + { + enduser_setup_http_serve_header(http_client, (char *) http_header_200, sizeof(http_header_200)); + enduser_setup_http_disconnect(http_client); + return; + } + else if (retval == 2) + { + ENDUSER_SETUP_ERROR_VOID("enduser_setup_http_recvcb failed. Failed to handle wifi credentials.", ENDUSER_SETUP_ERR_UNKOWN_ERROR, ENDUSER_SETUP_ERR_NONFATAL); + } + + if (retval != 1) + { + ENDUSER_SETUP_ERROR_VOID("enduser_setup_http_recvcb failed. Unknown error code.", ENDUSER_SETUP_ERR_UNKOWN_ERROR, ENDUSER_SETUP_ERR_NONFATAL); + } + } + else if (c_strncmp(data, "GET ", 4) == 0) + { + /* Reject requests that probably aren't relevant to free up resources. */ + if (c_strncmp(data, "GET / ", 6) != 0) + { + ENDUSER_SETUP_DEBUG(state->lua_L, "enduser_setup_http_recvcb received too specific request."); + enduser_setup_http_serve_header(http_client, (char *) http_header_404, sizeof(http_header_404)); + enduser_setup_http_disconnect(http_client); + return; + } + + retval = enduser_setup_http_serve_html(http_client); + if (retval != 0) + { + enduser_setup_http_disconnect(http_client); + ENDUSER_SETUP_ERROR_VOID("enduser_setup_http_recvcb failed. Unable to send HTML.", ENDUSER_SETUP_ERR_UNKOWN_ERROR, ENDUSER_SETUP_ERR_NONFATAL); + } + } + else + { + enduser_setup_http_serve_header(http_client, (char *) http_header_404, sizeof(http_header_404)); + enduser_setup_http_disconnect(http_client); + return; + } +} + + +static void enduser_setup_http_connectcb(void *arg) +{ + ENDUSER_SETUP_DEBUG(state->lua_L, "enduser_setup_http_connectcb"); + struct espconn *callback_espconn = (struct espconn *) arg; + + int8_t err = 0; + err |= espconn_regist_recvcb(callback_espconn, enduser_setup_http_recvcb); + + if (err != 0) + { + ENDUSER_SETUP_ERROR_VOID("enduser_setup_http_connectcb failed. Callback registration failed.", ENDUSER_SETUP_ERR_UNKOWN_ERROR, ENDUSER_SETUP_ERR_NONFATAL); + } +} + + +static int enduser_setup_http_start(void) +{ + ENDUSER_SETUP_DEBUG(state->lua_L, "enduser_setup_http_start"); + state->espconn_http_tcp = (struct espconn *) c_malloc(sizeof(struct espconn)); + if (state->espconn_http_tcp == NULL) + { + ENDUSER_SETUP_ERROR("enduser_setup_http_start failed. Memory allocation failed (espconn_http_tcp == NULL).", ENDUSER_SETUP_ERR_OUT_OF_MEMORY, ENDUSER_SETUP_ERR_FATAL); + } + esp_tcp *esp_tcp_data = (esp_tcp *) c_malloc(sizeof(esp_tcp)); + if (esp_tcp_data == NULL) + { + ENDUSER_SETUP_ERROR("enduser_setup_http_start failed. Memory allocation failed (esp_udp == NULL).", ENDUSER_SETUP_ERR_OUT_OF_MEMORY, ENDUSER_SETUP_ERR_FATAL); + } + + c_memset(state->espconn_http_tcp, 0, sizeof(struct espconn)); + c_memset(esp_tcp_data, 0, sizeof(esp_tcp)); + state->espconn_http_tcp->proto.tcp = esp_tcp_data; + state->espconn_http_tcp->type = ESPCONN_TCP; + state->espconn_http_tcp->state = ESPCONN_NONE; + esp_tcp_data->local_port = 80; + + int8_t err; + err = espconn_regist_connectcb(state->espconn_http_tcp, enduser_setup_http_connectcb); + if (err != 0) + { + ENDUSER_SETUP_ERROR("enduser_setup_http_start failed. Couldn't add receive callback.", ENDUSER_SETUP_ERR_UNKOWN_ERROR, ENDUSER_SETUP_ERR_FATAL); + } + + err = espconn_accept(state->espconn_http_tcp); + if (err == ESPCONN_ISCONN) + { + ENDUSER_SETUP_ERROR("enduser_setup_http_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("enduser_setup_http_start failed. Couldn't create connection, out of memory.", ENDUSER_SETUP_ERR_OUT_OF_MEMORY, ENDUSER_SETUP_ERR_FATAL); + } + else if (err == ESPCONN_ARG) + { + ENDUSER_SETUP_ERROR("enduser_setup_http_start failed. Can't find connection from espconn argument", ENDUSER_SETUP_ERR_CONNECTION_NOT_FOUND, ENDUSER_SETUP_ERR_FATAL); + } + else if (err != 0) + { + ENDUSER_SETUP_ERROR("enduser_setup_http_start failed. Unknown error", ENDUSER_SETUP_ERR_UNKOWN_ERROR, ENDUSER_SETUP_ERR_FATAL); + } + + err = espconn_regist_time(state->espconn_http_tcp, 2, 0); + if (err == ESPCONN_ARG) + { + ENDUSER_SETUP_ERROR("enduser_setup_http_start failed. Unable to set TCP timeout.", ENDUSER_SETUP_ERR_CONNECTION_NOT_FOUND, ENDUSER_SETUP_ERR_NONFATAL | ENDUSER_SETUP_ERR_NO_RETURN); + } + + err = enduser_setup_http_load_payload(); + if (err == 1) + { + ENDUSER_SETUP_DEBUG(state->lua_L, "enduser_setup_http_start info. Loaded backup HTML."); + } + else if (err == 2) + { + ENDUSER_SETUP_ERROR("enduser_setup_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(state->lua_L, "enduser_setup_http_stop"); + + if (state != NULL && state->espconn_http_tcp != NULL) + { + espconn_delete(state->espconn_http_tcp); + } +} + +static void enduser_setup_ap_stop(void) +{ + ENDUSER_SETUP_DEBUG(state->lua_L, "enduser_setup_station_stop"); + + wifi_set_opmode(~SOFTAP_MODE & wifi_get_opmode()); +} + + +static void enduser_setup_ap_start(void) +{ + ENDUSER_SETUP_DEBUG(state->lua_L, "enduser_setup_ap_start"); + + struct softap_config cnf; + c_memset(&(cnf), 0, sizeof(struct softap_config)); + + char ssid[] = ENDUSER_SETUP_AP_SSID; + int ssid_name_len = c_strlen(ENDUSER_SETUP_AP_SSID); + c_memcpy(&(cnf.ssid), ssid, ssid_name_len); + + uint8_t mac[6]; + wifi_get_macaddr(SOFTAP_IF, mac); + cnf.ssid[ssid_name_len] = '_'; + cnf.ssid[ssid_name_len + 1] = (char) (65 + (0x0F & mac[3])); + cnf.ssid[ssid_name_len + 2] = (char) (65 + ((0xF0 & mac[3]) >> 4)); + cnf.ssid[ssid_name_len + 3] = (char) (65 + (0x0F & mac[4])); + cnf.ssid[ssid_name_len + 4] = (char) (65 + ((0xF0 & mac[4]) >> 4)); + cnf.ssid[ssid_name_len + 5] = (char) (65 + (0x0F & mac[5])); + cnf.ssid[ssid_name_len + 6] = (char) (65 + ((0xF0 & mac[5]) >> 4)); + + cnf.ssid_len = c_strlen(ssid) + 7; + cnf.channel = 1; + cnf.authmode = AUTH_OPEN; + cnf.ssid_hidden = 0; + cnf.max_connection = 5; + cnf.beacon_interval = 100; + wifi_softap_set_config(&cnf); + wifi_set_opmode(SOFTAP_MODE | wifi_get_opmode()); +} + + +static void enduser_setup_dns_recv_callback(void *arg, char *recv_data, unsigned short recv_len) +{ + ENDUSER_SETUP_DEBUG(state->lua_L, "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("enduser_setup_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("enduser_setup_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("enduser_setup_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); + + int8_t err; + err = espconn_sent(callback_espconn, dns_reply, dns_reply_len); + c_free(dns_reply); + if (err == ESPCONN_MEM) + { + ENDUSER_SETUP_ERROR_VOID("enduser_setup_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("enduser_setup_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("enduser_setup_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(state->lua_L, "enduser_setup_free"); + + if (state == NULL) + { + return; + } + + 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); + } + + if (state->espconn_http_tcp != NULL) + { + if (state->espconn_http_tcp->proto.tcp != NULL) + { + c_free(state->espconn_http_tcp->proto.tcp); + } + c_free(state->espconn_http_tcp); + } + c_free(state->http_payload_data); + c_free(state); + state = NULL; +} + + +static int enduser_setup_dns_start(void) +{ + ENDUSER_SETUP_DEBUG(state->lua_L, "enduser_setup_dns_start"); + + if (state->espconn_dns_udp != NULL) + { + ENDUSER_SETUP_ERROR("enduser_setup_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("enduser_setup_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("enduser_setup_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("enduser_setup_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("enduser_setup_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("enduser_setup_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("enduser_setup_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(state->lua_L, "enduser_setup_dns_stop"); + + if (state->espconn_dns_udp != NULL) + { + espconn_delete(state->espconn_dns_udp); + } +} + + +static int enduser_setup_init(lua_State *L) +{ + ENDUSER_SETUP_DEBUG(L, "enduser_setup_init"); + + if (state != NULL) + { + enduser_setup_error(L, "enduser_setup_init failed. Appears to already be started.", ENDUSER_SETUP_ERR_UNKOWN_ERROR); + return ENDUSER_SETUP_ERR_UNKOWN_ERROR; + } + + state = (enduser_setup_state_t *) os_malloc(sizeof(enduser_setup_state_t)); + if (state == NULL) + { + enduser_setup_error(L, "enduser_setup_init failed. Unable to allocate memory.", ENDUSER_SETUP_ERR_OUT_OF_MEMORY); + return ENDUSER_SETUP_ERR_OUT_OF_MEMORY; + } + c_memset(state, 0, sizeof(enduser_setup_state_t)); + + state->lua_L = L; + 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_start(lua_State *L) +{ + ENDUSER_SETUP_DEBUG(L, "enduser_setup_start"); + + if(enduser_setup_init(L)) + { + enduser_setup_stop(L); + return 0; + } + + enduser_setup_check_station_start(); + enduser_setup_ap_start(); + + if(enduser_setup_dns_start()) + { + enduser_setup_stop(L); + return 0; + } + + if(enduser_setup_http_start()) + { + enduser_setup_stop(L); + return 0; + } + + return 0; +} + + +static int enduser_setup_stop(lua_State* L) +{ + enduser_setup_check_station_stop(); + enduser_setup_ap_stop(); + enduser_setup_dns_stop(); + enduser_setup_http_stop(); + enduser_setup_free(); + + return 0; +} + + +#define MIN_OPT_LEVEL 2 +#include "lrodefs.h" +const LUA_REG_TYPE enduser_setup_map[] = +{ + { LSTRKEY( "start" ), LFUNCVAL( enduser_setup_start )}, + { LSTRKEY( "stop" ), LFUNCVAL( enduser_setup_stop )}, + { LNILKEY, LNILVAL} +}; + +LUALIB_API int luaopen_enduser_setup(lua_State *L) { + LREGISTER(L, "enduser_setup", enduser_setup_map); + return 1; +} + diff --git a/app/modules/modules.h b/app/modules/modules.h index 85d123f1..48781cc9 100644 --- a/app/modules/modules.h +++ b/app/modules/modules.h @@ -157,6 +157,14 @@ #define ROM_MODULES_WS2812 #endif +#if defined(LUA_USE_MODULES_ENDUSER_SETUP) +#define MODULES_ENDUSER_SETUP "enduser_setup" +#define ROM_MODULES_ENDUSER_SETUP \ + _ROM(MODULES_ENDUSER_SETUP, luaopen_enduser_setup, enduser_setup_map) +#else +#define ROM_MODULES_ENDUSER_SETUP +#endif + #if defined(LUA_USE_MODULES_CJSON) #define MODULES_CJSON "cjson" #define ROM_MODULES_CJSON \ @@ -255,6 +263,7 @@ ROM_MODULES_UART \ ROM_MODULES_OW \ ROM_MODULES_BIT \ + ROM_MODULES_ENDUSER_SETUP \ ROM_MODULES_WS2801 \ ROM_MODULES_WS2812 \ ROM_MODULES_CJSON \