Merge pull request #587 from sidey79/dev-ota-updater

WIP: Added OTA updater option from esp8266

Author: tablatronix

WiFiManager.cpp

@@ -469,6 +469,7 @@ void WiFiManager::setupConfigPortal() {
   }
 
   /* Setup httpd callbacks, web pages: root, wifi config pages, SO captive portal detectors and not found. */
+
   server->on(String(FPSTR(R_root)).c_str(),       std::bind(&WiFiManager::handleRoot, this));
   server->on(String(FPSTR(R_wifi)).c_str(),       std::bind(&WiFiManager::handleWifi, this, true));
   server->on(String(FPSTR(R_wifinoscan)).c_str(), std::bind(&WiFiManager::handleWifi, this, false));
@@ -483,6 +484,9 @@ void WiFiManager::setupConfigPortal() {
   server->on(String(FPSTR(R_status)).c_str(),     std::bind(&WiFiManager::handleWiFiStatus, this));
   server->onNotFound (std::bind(&WiFiManager::handleNotFound, this));
 
+  server->on((String)FPSTR(R_update), std::bind(&WiFiManager::handleUpdate, this));
+  server->on((String)FPSTR(R_updatedone), HTTP_POST, std::bind(&WiFiManager::handleUpdateDone, this), std::bind(&WiFiManager::handleUpdating, this));
+  
   server->begin(); // Web server start
   DEBUG_WM(DEBUG_VERBOSE,F("HTTP server started"));
 
@@ -2693,3 +2697,92 @@ void WiFiManager::WiFi_autoReconnect(){
     // }
   #endif
 }
+
+// Called when /u is requested
+void WiFiManager::handleUpdate() {
+	DEBUG_WM(DEBUG_VERBOSE,F("<- Handle update"));
+	if (captivePortal()) return; // If captive portal redirect instead of displaying the page
+	String page = getHTTPHead(FPSTR(S_options)); // @token options
+	String str = FPSTR(HTTP_ROOT_MAIN);
+	str.replace(FPSTR(T_v), configPortalActive ? _apName : WiFi.localIP().toString()); // use ip if ap is not active for heading
+	page += str;
+
+	page += FPSTR(HTTP_UPDATE);
+	page += FPSTR(HTTP_END);
+
+	server->sendHeader(FPSTR(HTTP_HEAD_CL), String(page.length()));
+	server->send(200, FPSTR(HTTP_HEAD_CT), page);
+
+}
+
+void WiFiManager::handleUpdating(){
+	if (captivePortal()) return; // If captive portal redirect instead of displaying the page
+								 // handler for the file upload, get's the sketch bytes, and writes
+	// them through the Update object
+	HTTPUpload& upload = server->upload();
+	if (upload.status == UPLOAD_FILE_START) {
+		Serial.setDebugOutput(true);
+
+#ifdef ESP8266
+		WiFiUDP::stopAll();
+#elif defined(ESP32)
+			// Think we do not need to stop WiFIUDP because we haven't started a listener
+#endif
+		Serial.printf("Update: %s\r\n", upload.filename.c_str());
+#ifdef ESP8266
+		uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
+#elif defined(ESP32)
+		uint32_t maxSketchSpace = (ESP.getFlashChipSize() - 0x1000) & 0xFFFFF000;
+
+#endif
+
+		if (!Update.begin(maxSketchSpace)) { // start with max available size
+			Update.printError(Serial);
+		}
+	} else if (upload.status == UPLOAD_FILE_WRITE) {
+		Serial.print(".");
+		if (Update.write(upload.buf, upload.currentSize) != upload.currentSize) {
+			Update.printError(Serial);
+		}
+	} else if (upload.status == UPLOAD_FILE_END) {
+		if (Update.end(true)) { // true to set the size to the current progress
+			Serial.printf("Updated: %u bytes\r\nRebooting...\r\n", upload.totalSize);
+		} else {
+			Update.printError(Serial);
+		}
+		Serial.setDebugOutput(false);
+	} else if (upload.status == UPLOAD_FILE_ABORTED) {
+		Update.end();
+		DEBUG_WM(F("<- Update was aborted"));
+	}
+	delay(0);
+} // handleUpdating
+
+void WiFiManager::handleUpdateDone() {
+	DEBUG_WM(DEBUG_VERBOSE, F("<- Handle update done"));
+	if (captivePortal()) return; // If captive portal redirect instead of displaying the page
+
+	String page = getHTTPHead(FPSTR(S_options)); // @token options
+	String str = FPSTR(HTTP_ROOT_MAIN);
+	str.replace(FPSTR(T_v), configPortalActive ? _apName : WiFi.localIP().toString()); // use ip if ap is not active for heading
+	page += str;
+
+	if (Update.hasError()) {
+		page += FPSTR(HTTP_UPDATE_FAIL);
+		DEBUG_WM(F("update failed"));
+	}
+	else {
+		page += FPSTR(HTTP_UPDATE_OK);
+		DEBUG_WM(F("update ok"));
+
+	}
+	page += FPSTR(HTTP_END);
+
+	server->sendHeader(FPSTR(HTTP_HEAD_CL), String(page.length()));
+	server->send(200, FPSTR(HTTP_HEAD_CT), page);
+
+	delay(1000); // send page
+	if (!Update.hasError()) {
+		ESP.restart();
+	}
+}

WiFiManager.h

@@ -55,6 +55,7 @@
 
     #include <WiFi.h>
     #include <esp_wifi.h>  
+    #include <Update.h>
 
     #define WIFI_getChipId() (uint32_t)ESP.getEfuseMac()
     #define WM_WIFIOPEN   WIFI_AUTH_OPEN
@@ -408,6 +409,11 @@ class WiFiManager
     boolean       configPortalHasTimeout();
     uint8_t       processConfigPortal();
     void          stopCaptivePortal();
+	// OTA Update handler
+	void          handleUpdate();
+	void          handleUpdating();
+	void          handleUpdateDone();
+
 
     // wifi platform abstractions
     bool          WiFi_Mode(WiFiMode_t m);

strings_en.h

@@ -24,6 +24,7 @@ const char * const HTTP_PORTAL_MENU[] PROGMEM = {
 "<form action='/info'    method='get'><button>Info</button></form><br/>\n", // MENU_INFO
 "<form action='/param'   method='get'><button>Setup</button></form><br/>\n",//MENU_PARAM
 "<form action='/close'   method='get'><button>Close</button></form><br/>\n", // MENU_CLOSE
+"<form action='/update'  method='get'><button>Update</button></form><br/>\n",// MENU_UPDATE
 "<form action='/restart' method='get'><button>Restart</button></form><br/>\n",// MENU_RESTART
 "<form action='/exit'    method='get'><button>Exit</button></form><br/>\n",  // MENU_EXIT
 "<form action='/erase'   method='get'><button class='D'>Erase</button></form><br/>\n", // MENU_ERASE
@@ -99,6 +100,8 @@ const char HTTP_HELP[]             PROGMEM =
  "<td>Parameter page</td></tr>"
  "<tr><td><a href='/info'>/info</a></td>"
  "<td>Information page</td></tr>"
+ "<tr><td><a href='/u'>/u</a></td>"
+ "<td>OTA Update</td></tr>"
  "<tr><td><a href='/close'>/close</a></td>"
  "<td>Close the captiveportal popup,configportal will remain active</td></tr>"
  "<tr><td><a href='/exit'>/exit</a></td>"
@@ -110,6 +113,10 @@ const char HTTP_HELP[]             PROGMEM =
  "</table>"
  "<p/>More information about WiFiManager at <a href='https://github.com/tzapu/WiFiManager'>https://github.com/tzapu/WiFiManager</a>.";
 
+const char HTTP_UPDATE[] PROGMEM = "<form method='POST' action='update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
+const char HTTP_UPDATE_FAIL[] PROGMEM = "Update Failed!";
+const char HTTP_UPDATE_OK[] PROGMEM = "Update OK! Rebooting now...";
+
 #ifdef JSTEST
 const char HTTP_JS[] PROGMEM = 
 "<script>function postAjax(url, data, success) {"
@@ -236,6 +243,8 @@ const char R_exit[]               PROGMEM = "/exit";
 const char R_close[]              PROGMEM = "/close";
 const char R_erase[]              PROGMEM = "/erase"; 
 const char R_status[]             PROGMEM = "/status";
+const char R_update[]             PROGMEM = "/u";
+const char R_updatedone[]         PROGMEM = "/update";
 
 
 //Strings