Fork of the espurna firmware for `mhsw` switches
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  1. /*
  2. WIFI MODULE
  3. Copyright (C) 2016-2018 by Xose Pérez <xose dot perez at gmail dot com>
  4. */
  5. #include "JustWifi.h"
  6. #include <Ticker.h>
  7. uint32_t _wifi_scan_client_id = 0;
  8. // -----------------------------------------------------------------------------
  9. // PRIVATE
  10. // -----------------------------------------------------------------------------
  11. void _wifiConfigure() {
  12. jw.setHostname(getSetting("hostname").c_str());
  13. #if USE_PASSWORD
  14. jw.setSoftAP(getSetting("hostname").c_str(), getSetting("adminPass", ADMIN_PASS).c_str());
  15. #else
  16. jw.setSoftAP(getSetting("hostname").c_str());
  17. #endif
  18. jw.setConnectTimeout(WIFI_CONNECT_TIMEOUT);
  19. wifiReconnectCheck();
  20. jw.setAPMode(WIFI_AP_MODE);
  21. jw.cleanNetworks();
  22. // If system is flagged unstable we do not init wifi networks
  23. #if SYSTEM_CHECK_ENABLED
  24. if (!systemCheck()) return;
  25. #endif
  26. // Clean settings
  27. _wifiClean(WIFI_MAX_NETWORKS);
  28. int i;
  29. for (i = 0; i< WIFI_MAX_NETWORKS; i++) {
  30. if (getSetting("ssid" + String(i)).length() == 0) break;
  31. if (getSetting("ip" + String(i)).length() == 0) {
  32. jw.addNetwork(
  33. getSetting("ssid" + String(i)).c_str(),
  34. getSetting("pass" + String(i)).c_str()
  35. );
  36. } else {
  37. jw.addNetwork(
  38. getSetting("ssid" + String(i)).c_str(),
  39. getSetting("pass" + String(i)).c_str(),
  40. getSetting("ip" + String(i)).c_str(),
  41. getSetting("gw" + String(i)).c_str(),
  42. getSetting("mask" + String(i)).c_str(),
  43. getSetting("dns" + String(i)).c_str()
  44. );
  45. }
  46. }
  47. jw.scanNetworks(getSetting("wifiScan", WIFI_SCAN_NETWORKS).toInt() == 1);
  48. }
  49. void _wifiScan(uint32_t client_id = 0) {
  50. DEBUG_MSG_P(PSTR("[WIFI] Start scanning\n"));
  51. #if WEB_SUPPORT
  52. String output;
  53. #endif
  54. unsigned char result = WiFi.scanNetworks();
  55. if (result == WIFI_SCAN_FAILED) {
  56. DEBUG_MSG_P(PSTR("[WIFI] Scan failed\n"));
  57. #if WEB_SUPPORT
  58. output = String("Failed scan");
  59. #endif
  60. } else if (result == 0) {
  61. DEBUG_MSG_P(PSTR("[WIFI] No networks found\n"));
  62. #if WEB_SUPPORT
  63. output = String("No networks found");
  64. #endif
  65. } else {
  66. DEBUG_MSG_P(PSTR("[WIFI] %d networks found:\n"), result);
  67. // Populate defined networks with scan data
  68. for (int8_t i = 0; i < result; ++i) {
  69. String ssid_scan;
  70. int32_t rssi_scan;
  71. uint8_t sec_scan;
  72. uint8_t* BSSID_scan;
  73. int32_t chan_scan;
  74. bool hidden_scan;
  75. char buffer[128];
  76. WiFi.getNetworkInfo(i, ssid_scan, sec_scan, rssi_scan, BSSID_scan, chan_scan, hidden_scan);
  77. snprintf_P(buffer, sizeof(buffer),
  78. PSTR("BSSID: %02X:%02X:%02X:%02X:%02X:%02X SEC: %s RSSI: %3d CH: %2d SSID: %s"),
  79. BSSID_scan[1], BSSID_scan[2], BSSID_scan[3], BSSID_scan[4], BSSID_scan[5], BSSID_scan[6],
  80. (sec_scan != ENC_TYPE_NONE ? "YES" : "NO "),
  81. rssi_scan,
  82. chan_scan,
  83. (char *) ssid_scan.c_str()
  84. );
  85. DEBUG_MSG_P(PSTR("[WIFI] > %s\n"), buffer);
  86. #if WEB_SUPPORT
  87. if (client_id > 0) output = output + String(buffer) + String("<br />");
  88. #endif
  89. }
  90. }
  91. #if WEB_SUPPORT
  92. if (client_id > 0) {
  93. output = String("{\"scanResult\": \"") + output + String("\"}");
  94. wsSend(client_id, output.c_str());
  95. }
  96. #endif
  97. WiFi.scanDelete();
  98. }
  99. bool _wifiClean(unsigned char num) {
  100. bool changed = false;
  101. int i = 0;
  102. // Clean defined settings
  103. while (i < num) {
  104. // Skip on first non-defined setting
  105. if (!hasSetting("ssid", i)) {
  106. delSetting("ssid", i);
  107. break;
  108. }
  109. // Delete empty values
  110. if (!hasSetting("pass", i)) delSetting("pass", i);
  111. if (!hasSetting("ip", i)) delSetting("ip", i);
  112. if (!hasSetting("gw", i)) delSetting("gw", i);
  113. if (!hasSetting("mask", i)) delSetting("mask", i);
  114. if (!hasSetting("dns", i)) delSetting("dns", i);
  115. ++i;
  116. }
  117. // Delete all other settings
  118. while (i < WIFI_MAX_NETWORKS) {
  119. changed = hasSetting("ssid", i);
  120. delSetting("ssid", i);
  121. delSetting("pass", i);
  122. delSetting("ip", i);
  123. delSetting("gw", i);
  124. delSetting("mask", i);
  125. delSetting("dns", i);
  126. ++i;
  127. }
  128. return changed;
  129. }
  130. // Inject hardcoded networks
  131. void _wifiInject() {
  132. if (strlen(WIFI1_SSID)) {
  133. if (!hasSetting("ssid", 0)) {
  134. setSetting("ssid", 0, WIFI1_SSID);
  135. setSetting("pass", 0, WIFI1_PASS);
  136. setSetting("ip", 0, WIFI1_IP);
  137. setSetting("gw", 0, WIFI1_GW);
  138. setSetting("mask", 0, WIFI1_MASK);
  139. setSetting("dns", 0, WIFI1_DNS);
  140. }
  141. if (strlen(WIFI2_SSID)) {
  142. if (!hasSetting("ssid", 1)) {
  143. setSetting("ssid", 1, WIFI2_SSID);
  144. setSetting("pass", 1, WIFI2_PASS);
  145. setSetting("ip", 1, WIFI2_IP);
  146. setSetting("gw", 1, WIFI2_GW);
  147. setSetting("mask", 1, WIFI2_MASK);
  148. setSetting("dns", 1, WIFI2_DNS);
  149. }
  150. }
  151. }
  152. }
  153. #if WIFI_AP_CAPTIVE
  154. DNSServer _wifi_dnsServer;
  155. void _wifiCaptivePortal(justwifi_messages_t code, char * parameter) {
  156. if (MESSAGE_ACCESSPOINT_CREATED == code) {
  157. _wifi_dnsServer.setErrorReplyCode(DNSReplyCode::NoError);
  158. _wifi_dnsServer.start(53, "*", WiFi.softAPIP());
  159. DEBUG_MSG_P(PSTR("[WIFI] Captive portal enabled\n"));
  160. }
  161. if (MESSAGE_CONNECTED == code) {
  162. _wifi_dnsServer.stop();
  163. DEBUG_MSG_P(PSTR("[WIFI] Captive portal disabled\n"));
  164. }
  165. }
  166. #endif // WIFI_AP_CAPTIVE
  167. #if DEBUG_SUPPORT
  168. void _wifiDebug(justwifi_messages_t code, char * parameter) {
  169. if (code == MESSAGE_SCANNING) {
  170. DEBUG_MSG_P(PSTR("[WIFI] Scanning\n"));
  171. }
  172. if (code == MESSAGE_SCAN_FAILED) {
  173. DEBUG_MSG_P(PSTR("[WIFI] Scan failed\n"));
  174. }
  175. if (code == MESSAGE_NO_NETWORKS) {
  176. DEBUG_MSG_P(PSTR("[WIFI] No networks found\n"));
  177. }
  178. if (code == MESSAGE_NO_KNOWN_NETWORKS) {
  179. DEBUG_MSG_P(PSTR("[WIFI] No known networks found\n"));
  180. }
  181. if (code == MESSAGE_FOUND_NETWORK) {
  182. DEBUG_MSG_P(PSTR("[WIFI] %s\n"), parameter);
  183. }
  184. if (code == MESSAGE_CONNECTING) {
  185. DEBUG_MSG_P(PSTR("[WIFI] Connecting to %s\n"), parameter);
  186. }
  187. if (code == MESSAGE_CONNECT_WAITING) {
  188. // too much noise
  189. }
  190. if (code == MESSAGE_CONNECT_FAILED) {
  191. DEBUG_MSG_P(PSTR("[WIFI] Could not connect to %s\n"), parameter);
  192. }
  193. if (code == MESSAGE_CONNECTED) {
  194. wifiStatus();
  195. }
  196. if (code == MESSAGE_ACCESSPOINT_CREATED) {
  197. wifiStatus();
  198. }
  199. if (code == MESSAGE_DISCONNECTED) {
  200. DEBUG_MSG_P(PSTR("[WIFI] Disconnected\n"));
  201. }
  202. if (code == MESSAGE_ACCESSPOINT_CREATING) {
  203. DEBUG_MSG_P(PSTR("[WIFI] Creating access point\n"));
  204. }
  205. if (code == MESSAGE_ACCESSPOINT_FAILED) {
  206. DEBUG_MSG_P(PSTR("[WIFI] Could not create access point\n"));
  207. }
  208. }
  209. #endif // DEBUG_SUPPORT
  210. // -----------------------------------------------------------------------------
  211. // SETTINGS
  212. // -----------------------------------------------------------------------------
  213. #if TERMINAL_SUPPORT
  214. void _wifiInitCommands() {
  215. settingsRegisterCommand(F("WIFI.RESET"), [](Embedis* e) {
  216. _wifiConfigure();
  217. wifiDisconnect();
  218. DEBUG_MSG_P(PSTR("+OK\n"));
  219. });
  220. settingsRegisterCommand(F("WIFI.AP"), [](Embedis* e) {
  221. createAP();
  222. DEBUG_MSG_P(PSTR("+OK\n"));
  223. });
  224. settingsRegisterCommand(F("WIFI.SCAN"), [](Embedis* e) {
  225. _wifiScan();
  226. DEBUG_MSG_P(PSTR("+OK\n"));
  227. });
  228. }
  229. #endif
  230. // -----------------------------------------------------------------------------
  231. // WEB
  232. // -----------------------------------------------------------------------------
  233. #if WEB_SUPPORT
  234. bool _wifiWebSocketOnReceive(const char * key, JsonVariant& value) {
  235. if (strncmp(key, "wifi", 4) == 0) return true;
  236. if (strncmp(key, "ssid", 4) == 0) return true;
  237. if (strncmp(key, "pass", 4) == 0) return true;
  238. if (strncmp(key, "ip", 2) == 0) return true;
  239. if (strncmp(key, "gw", 2) == 0) return true;
  240. if (strncmp(key, "mask", 4) == 0) return true;
  241. if (strncmp(key, "dns", 3) == 0) return true;
  242. return false;
  243. }
  244. void _wifiWebSocketOnSend(JsonObject& root) {
  245. root["maxNetworks"] = WIFI_MAX_NETWORKS;
  246. root["wifiScan"] = getSetting("wifiScan", WIFI_SCAN_NETWORKS).toInt() == 1;
  247. JsonArray& wifi = root.createNestedArray("wifi");
  248. for (byte i=0; i<WIFI_MAX_NETWORKS; i++) {
  249. if (!hasSetting("ssid", i)) break;
  250. JsonObject& network = wifi.createNestedObject();
  251. network["ssid"] = getSetting("ssid", i, "");
  252. network["pass"] = getSetting("pass", i, "");
  253. network["ip"] = getSetting("ip", i, "");
  254. network["gw"] = getSetting("gw", i, "");
  255. network["mask"] = getSetting("mask", i, "");
  256. network["dns"] = getSetting("dns", i, "");
  257. }
  258. }
  259. void _wifiWebSocketOnAction(uint32_t client_id, const char * action, JsonObject& data) {
  260. if (strcmp(action, "scan") == 0) _wifi_scan_client_id = client_id;
  261. }
  262. #endif
  263. // -----------------------------------------------------------------------------
  264. // API
  265. // -----------------------------------------------------------------------------
  266. String getIP() {
  267. if (WiFi.getMode() == WIFI_AP) {
  268. return WiFi.softAPIP().toString();
  269. }
  270. return WiFi.localIP().toString();
  271. }
  272. String getNetwork() {
  273. if (WiFi.getMode() == WIFI_AP) {
  274. return jw.getAPSSID();
  275. }
  276. return WiFi.SSID();
  277. }
  278. bool wifiConnected() {
  279. return jw.connected();
  280. }
  281. void wifiDisconnect() {
  282. jw.disconnect();
  283. }
  284. bool createAP() {
  285. jw.disconnect();
  286. jw.resetReconnectTimeout();
  287. return jw.createAP();
  288. }
  289. void wifiReconnectCheck() {
  290. bool connected = false;
  291. #if WEB_SUPPORT
  292. if (wsConnected()) connected = true;
  293. #endif
  294. #if TELNET_SUPPORT
  295. if (telnetConnected()) connected = true;
  296. #endif
  297. jw.setReconnectTimeout(connected ? 0 : WIFI_RECONNECT_INTERVAL);
  298. }
  299. void wifiStatus() {
  300. if (WiFi.getMode() == WIFI_AP_STA) {
  301. DEBUG_MSG_P(PSTR("[WIFI] MODE AP + STA --------------------------------\n"));
  302. } else if (WiFi.getMode() == WIFI_AP) {
  303. DEBUG_MSG_P(PSTR("[WIFI] MODE AP --------------------------------------\n"));
  304. } else if (WiFi.getMode() == WIFI_STA) {
  305. DEBUG_MSG_P(PSTR("[WIFI] MODE STA -------------------------------------\n"));
  306. } else {
  307. DEBUG_MSG_P(PSTR("[WIFI] MODE OFF -------------------------------------\n"));
  308. DEBUG_MSG_P(PSTR("[WIFI] No connection\n"));
  309. }
  310. if ((WiFi.getMode() & WIFI_AP) == WIFI_AP) {
  311. DEBUG_MSG_P(PSTR("[WIFI] SSID %s\n"), jw.getAPSSID().c_str());
  312. DEBUG_MSG_P(PSTR("[WIFI] PASS %s\n"), getSetting("adminPass", ADMIN_PASS).c_str());
  313. DEBUG_MSG_P(PSTR("[WIFI] IP %s\n"), WiFi.softAPIP().toString().c_str());
  314. DEBUG_MSG_P(PSTR("[WIFI] MAC %s\n"), WiFi.softAPmacAddress().c_str());
  315. }
  316. if ((WiFi.getMode() & WIFI_STA) == WIFI_STA) {
  317. uint8_t * bssid = WiFi.BSSID();
  318. DEBUG_MSG_P(PSTR("[WIFI] SSID %s\n"), WiFi.SSID().c_str());
  319. DEBUG_MSG_P(PSTR("[WIFI] IP %s\n"), WiFi.localIP().toString().c_str());
  320. DEBUG_MSG_P(PSTR("[WIFI] MAC %s\n"), WiFi.macAddress().c_str());
  321. DEBUG_MSG_P(PSTR("[WIFI] GW %s\n"), WiFi.gatewayIP().toString().c_str());
  322. DEBUG_MSG_P(PSTR("[WIFI] DNS %s\n"), WiFi.dnsIP().toString().c_str());
  323. DEBUG_MSG_P(PSTR("[WIFI] MASK %s\n"), WiFi.subnetMask().toString().c_str());
  324. DEBUG_MSG_P(PSTR("[WIFI] HOST %s\n"), WiFi.hostname().c_str());
  325. DEBUG_MSG_P(PSTR("[WIFI] BSSID %02X:%02X:%02X:%02X:%02X:%02X\n"),
  326. bssid[0], bssid[1], bssid[2], bssid[3], bssid[4], bssid[5], bssid[6]
  327. );
  328. DEBUG_MSG_P(PSTR("[WIFI] CH %d\n"), WiFi.channel());
  329. DEBUG_MSG_P(PSTR("[WIFI] RSSI %d\n"), WiFi.RSSI());
  330. }
  331. DEBUG_MSG_P(PSTR("[WIFI] ----------------------------------------------\n"));
  332. }
  333. void wifiRegister(wifi_callback_f callback) {
  334. jw.subscribe(callback);
  335. }
  336. // -----------------------------------------------------------------------------
  337. // INITIALIZATION
  338. // -----------------------------------------------------------------------------
  339. void wifiSetup() {
  340. WiFi.setSleepMode(WIFI_SLEEP_MODE);
  341. _wifiInject();
  342. _wifiConfigure();
  343. // Message callbacks
  344. #if WIFI_AP_CAPTIVE
  345. wifiRegister(_wifiCaptivePortal);
  346. #endif
  347. #if DEBUG_SUPPORT
  348. wifiRegister(_wifiDebug);
  349. #endif
  350. #if WEB_SUPPORT
  351. wsOnSendRegister(_wifiWebSocketOnSend);
  352. wsOnReceiveRegister(_wifiWebSocketOnReceive);
  353. wsOnAfterParseRegister(_wifiConfigure);
  354. wsOnActionRegister(_wifiWebSocketOnAction);
  355. #endif
  356. #if TERMINAL_SUPPORT
  357. _wifiInitCommands();
  358. #endif
  359. // Register loop
  360. espurnaRegisterLoop(wifiLoop);
  361. }
  362. void wifiLoop() {
  363. jw.loop();
  364. #if WIFI_AP_CAPTIVE
  365. if ((WiFi.getMode() & WIFI_AP) == WIFI_AP) {
  366. _wifi_dnsServer.processNextRequest();
  367. }
  368. #endif
  369. if (_wifi_scan_client_id > 0) {
  370. _wifiScan(_wifi_scan_client_id);
  371. _wifi_scan_client_id = 0;
  372. }
  373. }