280 lines
8.3 KiB
C++
280 lines
8.3 KiB
C++
/*
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* Alexa Voice On/Off/Brightness Control. Emulates a Philips Hue bridge to Alexa.
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*
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* This was put together from these two excellent projects:
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* https://github.com/kakopappa/arduino-esp8266-alexa-wemo-switch
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* https://github.com/probonopd/ESP8266HueEmulator
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*/
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void alexaInit()
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{
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if (alexaEnabled && WiFi.status() == WL_CONNECTED)
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{
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prepareIds();
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udpConnected = connectUDP();
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if (udpConnected) alexaInitPages();
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}
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}
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void handleAlexa()
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{
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if (alexaEnabled && WiFi.status() == WL_CONNECTED)
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{
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if(udpConnected){
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// if there’s data available, read a packet
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int packetSize = UDP.parsePacket();
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if(packetSize>0) {
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IPAddress remote = UDP.remoteIP();
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int len = UDP.read(packetBuffer, 255);
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if (len > 0) {
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packetBuffer[len] = 0;
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}
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String request = packetBuffer;
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if(request.indexOf("M-SEARCH") >= 0) {
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if(request.indexOf("upnp:rootdevice") > 0) {
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DEBUG_PRINTLN("Responding search req...");
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respondToSearch();
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}
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}
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}
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}
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}
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}
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void alexaOn()
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{
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if (alexaOnMacro == 255)
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{
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handleSet((alexaNotify)?"win&T=1&IN":"win&T=1&NN&IN");
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} else
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{
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applyMacro(alexaOnMacro);
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}
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String body = "[{\"success\":{\"/lights/1/state/on\":true}}]";
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server.send(200, "text/xml", body.c_str());
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DEBUG_PRINT("Sending :");
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DEBUG_PRINTLN(body);
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}
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void alexaOff()
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{
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if (alexaOffMacro == 255)
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{
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handleSet((alexaNotify)?"win&T=0&IN":"win&T=0&NN&IN");
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} else
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{
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applyMacro(alexaOffMacro);
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}
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String body = "[{\"success\":{\"/lights/1/state/on\":false}}]";
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server.send(200, "application/json", body.c_str());
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DEBUG_PRINT("Sending:");
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DEBUG_PRINTLN(body);
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}
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void alexaDim(uint8_t briL)
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{
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String body = "[{\"success\":{\"/lights/1/state/bri\":"+ String(briL) +"}}]";
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server.send(200, "application/json", body.c_str());
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String ct = (alexaNotify)?"win&IN&A=":"win&NN&IN&A=";
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ct = ct + (briL+1);
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handleSet(ct);
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}
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void prepareIds() {
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escapedMac = WiFi.macAddress();
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escapedMac.replace(":", "");
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escapedMac.toLowerCase();
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}
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void respondToSearch() {
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DEBUG_PRINTLN("");
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DEBUG_PRINT("Send resp to ");
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DEBUG_PRINTLN(UDP.remoteIP());
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DEBUG_PRINT("Port : ");
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DEBUG_PRINTLN(UDP.remotePort());
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IPAddress localIP = WiFi.localIP();
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char s[16];
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sprintf(s, "%d.%d.%d.%d", localIP[0], localIP[1], localIP[2], localIP[3]);
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String response =
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"HTTP/1.1 200 OK\r\n"
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"EXT:\r\n"
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"CACHE-CONTROL: max-age=100\r\n" // SSDP_INTERVAL
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"LOCATION: http://"+ String(s) +":80/description.xml\r\n"
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"SERVER: FreeRTOS/6.0.5, UPnP/1.0, IpBridge/1.17.0\r\n" // _modelName, _modelNumber
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"hue-bridgeid: "+ escapedMac +"\r\n"
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"ST: urn:schemas-upnp-org:device:basic:1\r\n" // _deviceType
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"USN: uuid:2f402f80-da50-11e1-9b23-"+ escapedMac +"::upnp:rootdevice\r\n" // _uuid::_deviceType
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"\r\n";
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UDP.beginPacket(UDP.remoteIP(), UDP.remotePort());
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#ifdef ARDUINO_ARCH_ESP32
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UDP.write((uint8_t*)response.c_str(), response.length());
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#else
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UDP.write(response.c_str());
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#endif
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UDP.endPacket();
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DEBUG_PRINTLN("Response sent!");
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}
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void alexaInitPages() {
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server.on("/description.xml", HTTP_GET, [](){
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DEBUG_PRINTLN(" # Responding to description.xml ... #\n");
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IPAddress localIP = WiFi.localIP();
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char s[16];
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sprintf(s, "%d.%d.%d.%d", localIP[0], localIP[1], localIP[2], localIP[3]);
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String setup_xml = "<?xml version=\"1.0\" ?>"
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"<root xmlns=\"urn:schemas-upnp-org:device-1-0\">"
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"<specVersion><major>1</major><minor>0</minor></specVersion>"
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"<URLBase>http://"+ String(s) +":80/</URLBase>"
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"<device>"
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"<deviceType>urn:schemas-upnp-org:device:Basic:1</deviceType>"
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"<friendlyName>Philips hue ("+ String(s) +")</friendlyName>"
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"<manufacturer>Royal Philips Electronics</manufacturer>"
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"<manufacturerURL>http://www.philips.com</manufacturerURL>"
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"<modelDescription>Philips hue Personal Wireless Lighting</modelDescription>"
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"<modelName>Philips hue bridge 2012</modelName>"
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"<modelNumber>929000226503</modelNumber>"
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"<modelURL>http://www.meethue.com</modelURL>"
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"<serialNumber>"+ escapedMac +"</serialNumber>"
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"<UDN>uuid:2f402f80-da50-11e1-9b23-"+ escapedMac +"</UDN>"
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"<presentationURL>index.html</presentationURL>"
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"<iconList>"
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" <icon>"
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" <mimetype>image/png</mimetype>"
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" <height>48</height>"
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" <width>48</width>"
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" <depth>24</depth>"
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" <url>hue_logo_0.png</url>"
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" </icon>"
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" <icon>"
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" <mimetype>image/png</mimetype>"
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" <height>120</height>"
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" <width>120</width>"
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" <depth>24</depth>"
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" <url>hue_logo_3.png</url>"
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" </icon>"
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"</iconList>"
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"</device>"
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"</root>";
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server.send(200, "text/xml", setup_xml.c_str());
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DEBUG_PRINT("Sending :");
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DEBUG_PRINTLN(setup_xml);
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});
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// openHAB support
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server.on("/on.html", HTTP_GET, [](){
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DEBUG_PRINTLN("on req");
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server.send(200, "text/plain", "turned on");
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alexaOn();
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});
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server.on("/off.html", HTTP_GET, [](){
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DEBUG_PRINTLN("off req");
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server.send(200, "text/plain", "turned off");
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alexaOff();
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});
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server.on("/status.html", HTTP_GET, [](){
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DEBUG_PRINTLN("Got status request");
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String statrespone = "0";
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if (bri > 0) {
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statrespone = "1";
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}
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server.send(200, "text/plain", statrespone);
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});
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}
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String boolString(bool st)
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{
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return (st)?"true":"false";
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}
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String briForHue(int realBri)
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{
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realBri--;
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if (realBri < 0) realBri = 0;
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return String(realBri);
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}
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boolean handleAlexaApiCall(String req, String body) //basic implementation of Philips hue api functions needed for basic Alexa control
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{
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DEBUG_PRINTLN("AlexaApiCall");
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if (req.indexOf("api") <0) return false;
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DEBUG_PRINTLN("ok");
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if (body.indexOf("devicetype") > 0) //client wants a hue api username, we dont care and give static
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{
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DEBUG_PRINTLN("devType");
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server.send(200, "application/json", "[{\"success\":{\"username\": \"2WLEDHardQrI3WHYTHoMcXHgEspsM8ZZRpSKtBQr\"}}]");
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return true;
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}
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if (req.indexOf("state") > 0) //client wants to control light
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{
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DEBUG_PRINTLN("ls");
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if (body.indexOf("bri")>0) {alexaDim(body.substring(body.indexOf("bri") +5).toInt()); return true;}
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if (body.indexOf("false")>0) {alexaOff(); return true;}
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alexaOn();
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return true;
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}
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if (req.indexOf("lights/1") > 0) //client wants light info
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{
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DEBUG_PRINTLN("l1");
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server.send(200, "application/json", "{\"manufacturername\":\"OpenSource\",\"modelid\":\"LST001\",\"name\":\""+ alexaInvocationName +"\",\"state\":{\"on\":"+ boolString(bri) +",\"hue\":0,\"bri\":"+ briForHue(bri) +",\"sat\":0,\"xy\":[0.00000,0.00000],\"ct\":500,\"alert\":\"none\",\"effect\":\"none\",\"colormode\":\"hs\",\"reachable\":true},\"swversion\":\"0.1\",\"type\":\"Extended color light\",\"uniqueid\":\"2\"}");
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return true;
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}
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if (req.indexOf("lights") > 0) //client wants all lights
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{
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DEBUG_PRINTLN("lAll");
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server.send(200, "application/json", "{\"1\":{\"type\":\"Extended color light\",\"manufacturername\":\"OpenSource\",\"swversion\":\"0.1\",\"name\":\""+ alexaInvocationName +"\",\"uniqueid\":\""+ WiFi.macAddress() +"-2\",\"modelid\":\"LST001\",\"state\":{\"on\":"+ boolString(bri) +",\"bri\":"+ briForHue(bri) +",\"xy\":[0.00000,0.00000],\"colormode\":\"hs\",\"effect\":\"none\",\"ct\":500,\"hue\":0,\"sat\":0,\"alert\":\"none\",\"reachable\":true}}}");
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return true;
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}
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//we dont care about other api commands at this time and send empty JSON
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server.send(200, "application/json", "{}");
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return true;
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}
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boolean connectUDP(){
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boolean state = false;
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DEBUG_PRINTLN("");
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DEBUG_PRINTLN("Con UDP");
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#ifdef ARDUINO_ARCH_ESP32
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if(UDP.beginMulticast(ipMulti, portMulti))
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#else
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if(UDP.beginMulticast(WiFi.localIP(), ipMulti, portMulti))
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#endif
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{
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DEBUG_PRINTLN("Con success");
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state = true;
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}
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else{
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DEBUG_PRINTLN("Con failed");
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}
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return state;
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}
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