load html from sd and implement post requests
This commit is contained in:
Norman Bos
+155
-223
@@ -31,18 +31,72 @@
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developed for the ESP32vn IoT Uni board 2024
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*/
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//-----------------------------------------
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// Arduino Web Server using AJAX
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// HTML code of webpage is stored on SD card
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//-----------------------------------------
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#include <Arduino.h>
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#include <WiFi.h>
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#include <AsyncTCP.h>
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#include <ESPAsyncWebServer.h>
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#include "FS.h"
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#include "SD.h"
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#include "SPI.h"
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#include <WiFi.h>
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#include <IRremote.hpp>
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#include "secrets.h"
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#include "defines.h"
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WiFiServer server(80);
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//------------------------------------------------
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// Create AsyncWebServer object on port 80
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AsyncWebServer server(80);
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// WiFiServer server(80);
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const char *PARAM_MESSAGE = "message";
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void notFound(AsyncWebServerRequest *request)
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{
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request->send(404, "text/plain", "Not found");
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}
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//------------------------------------------------
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//-------------- SD-Card Functions ---------------
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void initSDCard()
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{
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if (!SD.begin())
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{
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Serial.println("Card Mount Failed");
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return;
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}
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uint8_t cardType = SD.cardType();
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if (cardType == CARD_NONE)
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{
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Serial.println("No SD card attached");
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return;
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}
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Serial.print("SD Card Type: ");
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if (cardType == CARD_MMC)
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{
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Serial.println("MMC");
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}
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else if (cardType == CARD_SD)
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{
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Serial.println("SDSC");
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}
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else if (cardType == CARD_SDHC)
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{
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Serial.println("SDHC");
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}
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else
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{
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Serial.println("UNKNOWN");
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}
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uint64_t cardSize = SD.cardSize() / (1024 * 1024);
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Serial.printf("SD Card Size: %lluMB\n", cardSize);
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}
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/**** SD-Card Functions ****/
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void listDir(fs::FS &fs, const char *dirname, uint8_t levels)
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{
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Serial.printf("Listing directory: %s\n", dirname);
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@@ -82,252 +136,130 @@ void listDir(fs::FS &fs, const char *dirname, uint8_t levels)
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}
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}
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void readFile(fs::FS &fs, const char *path)
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//------------------------------------------------
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//--------------- IR Functions -------------------
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void initIR()
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{
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Serial.printf("Reading file: %s\n", path);
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File file = fs.open(path);
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if (!file)
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{
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Serial.println("Failed to open file for reading");
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return;
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}
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Serial.print("Read from file: ");
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while (file.available())
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{
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Serial.write(file.read());
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}
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file.close();
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IrSender.begin(IR_SEND_PIN, ENABLE_LED_FEEDBACK, USE_DEFAULT_FEEDBACK_LED_PIN); // Specify send pin and enable feedback LED at default feedback LED pin
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Serial.println();
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Serial.print(F("Send IR signals at pin "));
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Serial.println(IR_SEND_PIN);
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}
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void testFileIO(fs::FS &fs, const char *path)
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{
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File file = fs.open(path);
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static uint8_t buf[512];
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size_t len = 0;
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uint32_t start = millis();
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uint32_t end = start;
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if (file)
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{
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len = file.size();
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size_t flen = len;
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start = millis();
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while (len)
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{
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size_t toRead = len;
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if (toRead > 512)
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{
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toRead = 512;
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}
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file.read(buf, toRead);
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len -= toRead;
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}
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end = millis() - start;
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Serial.printf("%u bytes read for %u ms\n", flen, end);
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file.close();
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}
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else
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{
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Serial.println("Failed to open file for reading");
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}
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file = fs.open(path, FILE_WRITE);
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if (!file)
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{
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Serial.println("Failed to open file for writing");
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return;
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}
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size_t i;
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start = millis();
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for (i = 0; i < 2048; i++)
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{
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file.write(buf, 512);
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}
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end = millis() - start;
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Serial.printf("%u bytes written for %u ms\n", 2048 * 512, end);
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file.close();
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}
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/* ============ IR Functions ============ */
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void sendButton(int command)
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{
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Serial.println("sendButton command: ");
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Serial.println(command);
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Serial.flush();
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IrSender.sendSony(0xF, command, 2, 12);
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}
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/* ============ Setup ============ */
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//------------------------------------------------
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//------------- Webserver Functions --------------
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void initWiFi()
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{
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WiFi.mode(WIFI_STA);
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WiFi.begin(SSID, PASSWORD);
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Serial.print("Connecting to WiFi ..");
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while (WiFi.status() != WL_CONNECTED)
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{
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Serial.print('.');
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delay(1000);
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}
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Serial.println(WiFi.localIP());
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}
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//------------------------------------------------
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//-------------------- Setup ---------------------
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void setup()
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{
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Serial.begin(115200);
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initWiFi();
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initSDCard();
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pinMode(LED_PIN, OUTPUT); // set the LED pin mode
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delay(10);
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initIR();
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/* ============ SD-Card Setup ============ */
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if (!SD.begin())
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{
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Serial.println("Card Mount Failed");
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return;
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}
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uint8_t cardType = SD.cardType();
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server.on("/", HTTP_GET, [](AsyncWebServerRequest *request)
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{ request->send(SD, "/index.html", "text/html"); });
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if (cardType == CARD_NONE)
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{
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Serial.println("No SD card attached");
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return;
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}
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server.serveStatic("/", SD, "/");
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Serial.print("SD Card Type: ");
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if (cardType == CARD_MMC)
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{
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Serial.println("MMC");
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}
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else if (cardType == CARD_SD)
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{
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Serial.println("SDSC");
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}
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else if (cardType == CARD_SDHC)
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{
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Serial.println("SDHC");
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}
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else
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{
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Serial.println("UNKNOWN");
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}
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// Send a GET request to <IP>/api/gettextinput?message=<message>
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server.on("/api/gettextinput", HTTP_GET, [](AsyncWebServerRequest *request)
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{
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String message;
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if (request->hasParam("text_input"))
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{
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message = request->getParam("text_input")->value();
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Serial.println(message);
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}
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else
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{
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message = "No message sent";
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}
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request->send(SD, "/index.html", "text/html"); });
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uint64_t cardSize = SD.cardSize() / (1024 * 1024);
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Serial.printf("SD Card Size: %lluMB\n", cardSize);
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// Send a POST request to <IP>/api/control-led with a form field message set to <message>
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server.on("/api/control-led", HTTP_POST, [](AsyncWebServerRequest *request)
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{
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String message;
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if (request->hasParam("led", true)) {
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message = request->getParam("led", true)->value();
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if (message == "1")
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digitalWrite(LED_PIN, HIGH);
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if (message == "0")
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digitalWrite(LED_PIN, LOW);
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} else {
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message = "No message sent";
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}
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request->send(SD, "/index.html", "text/html"); });
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listDir(SD, "/", 0);
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readFile(SD, "/index.html");
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Serial.printf("Total space: %lluMB\n", SD.totalBytes() / (1024 * 1024));
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Serial.printf("Used space: %lluMB\n", SD.usedBytes() / (1024 * 1024));
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// Send a POST request to <IP>/api/gettext with a form field message set to <message>
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server.on("/api/gettext", HTTP_POST, [](AsyncWebServerRequest *request)
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{
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String message;
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if (request->hasParam("text_box", true)) {
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message = request->getParam("text_box", true)->value();
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Serial.println(message);
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} else {
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message = "No message sent";
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}
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request->send(SD, "/index.html", "text/html"); });
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/* ============ IR Setup ============ */
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IrSender.begin(IR_SEND_PIN, ENABLE_LED_FEEDBACK, USE_DEFAULT_FEEDBACK_LED_PIN); // Specify send pin and enable feedback LED at default feedback LED pin
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Serial.println();
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Serial.print(F("Send IR signals at pin "));
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Serial.println(IR_SEND_PIN);
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// Send a POST request to <IP>/api/control-deck with a form field message set to <message>
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server.on("/api/control-deck", HTTP_POST, [](AsyncWebServerRequest *request)
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{
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String message;
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if (request->hasParam("control", true)) {
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message = request->getParam("control", true)->value();
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//Serial.print(message);
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if (message == "POWER")
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sendButton(POWER);
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if (message == "PLAY")
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sendButton(PLAY);
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if (message == "PAUSE")
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sendButton(PAUSE);
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if (message == "STOP")
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sendButton(STOP);
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if (message == "PREV")
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sendButton(PREV);
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if (message == "NEXT")
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sendButton(NEXT);
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} else {
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message = "No message sent";
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}
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request->send(SD, "/index.html", "text/html"); });
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/* ============ Webserver Setup ============ */
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// We start by connecting to a WiFi network
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Serial.println();
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Serial.println();
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Serial.print("Connecting to ");
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Serial.println(SSID);
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WiFi.begin(SSID, PASSWORD);
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while (WiFi.status() != WL_CONNECTED)
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{
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delay(500);
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Serial.print(".");
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}
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Serial.println();
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Serial.println("WiFi connected.");
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Serial.println("IP address: ");
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Serial.println(WiFi.localIP());
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server.onNotFound(notFound);
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server.begin();
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}
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void loop()
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{
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WiFiClient client = server.available(); // listen for incoming clients
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if (client)
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{ // if you get a client,
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Serial.println("New Client."); // print a message out the serial port
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String currentLine = ""; // make a String to hold incoming data from the client
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while (client.connected())
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{ // loop while the client's connected
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if (client.available())
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{ // if there's bytes to read from the client,
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char c = client.read(); // read a byte, then
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Serial.write(c); // print it out the serial monitor
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if (c == '\n')
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{ // if the byte is a newline character
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// if the current line is blank, you got two newline characters in a row.
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// that's the end of the client HTTP request, so send a response:
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if (currentLine.length() == 0)
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{
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// HTTP headers always start with a response code (e.g. HTTP/1.1 200 OK)
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// and a content-type so the client knows what's coming, then a blank line:
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client.println("HTTP/1.1 200 OK");
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client.println("Content-type:text/html");
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client.println();
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// the content of the HTTP response follows the header:
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client.print("Click <a href=\"/H\">here</a> to turn the LED on pin 13 on.<br>Click <a href=\"/L\">here</a> to turn the LED on pin 13 off.<br><a href=\"/power\">power</a><br><a href=\"/play\">play</a><br><a href=\"/pause\">pause</a><br><a href=\"/stop\">stop</a><br><a href=\"/prev\">previous track</a><br><a href=\"/next\">next track</a><br>");
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client.print("<form action=\"/api/control-deck\" method=\"post\"><button name=\"control\" type=\"submit\" value=\"play\">play</button></form><br><form action=\"/api/control-deck\" method=\"get\"><input name=\"textinput\" type=\"text\" /><button type=\"submit\">send</button></form><br>");
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// The HTTP response ends with another blank line:
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client.println();
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// break out of the while loop:
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break;
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}
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else
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{ // if you got a newline, then clear currentLine:
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currentLine = "";
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}
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}
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else if (c != '\r')
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{ // if you got anything else but a carriage return character,
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currentLine += c; // add it to the end of the currentLine
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}
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// Check to see if the client request was "GET /H" or "GET /L":
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if (currentLine.endsWith("GET /H"))
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{
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digitalWrite(LED_PIN, HIGH); // GET /H turns the LED on
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}
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if (currentLine.endsWith("GET /L"))
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{
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digitalWrite(LED_PIN, LOW); // GET /L turns the LED off
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}
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if (currentLine.endsWith("GET /power"))
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{
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sendButton(POWER);
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}
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if (currentLine.endsWith("GET /play"))
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{
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sendButton(PLAY);
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}
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if (currentLine.endsWith("GET /pause"))
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{
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sendButton(PAUSE);
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}
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if (currentLine.endsWith("GET /stop"))
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{
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sendButton(STOP);
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}
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if (currentLine.endsWith("GET /prev"))
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{
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sendButton(PREV);
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}
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if (currentLine.endsWith("GET /next"))
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{
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sendButton(NEXT);
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}
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if (currentLine.endsWith("POST /api/control-deck"))
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{
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Serial.println("POST");
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char c = client.read();
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Serial.print(c);
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}
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}
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}
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// close the connection:
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client.stop();
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Serial.println("Client Disconnected.");
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}
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}
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Reference in New Issue
Block a user