Using strok

2021-11-18 20:56:54 +01:00
parent 7b9b32c3bd
commit 6ab5db4759
1 changed files with 9 additions and 11 deletions
--- a/arduino/main/main.ino
+++ b/arduino/main/main.ino
@@ -0,0 +1,93 @@
+#include <SPI.h>
+#include <Ethernet.h>
+#include <SD.h>
+#include <String.h>
+
+byte mac[] = {
+  0xA8, 0x61, 0x0A, 0xAE, 0x6F, 0x4A
+};
+
+EthernetServer server(80);
+
+void setup() {
+  Ethernet.init(10);
+  Serial.begin(115200);
+  while (!Serial) {
+    ; // wait for serial port to connect. Needed for native USB port only
+  }
+  Serial.println("Arduino Ethernet WebServer");
+
+  Serial.print("Initializing SD card...");
+  if (!SD.begin(4)) {
+    Serial.println("initialization failed!");
+    while (true) {
+      delay(1);
+    }
+  }
+  
+  Serial.println("Initialize Ethernet with DHCP:");
+  if (Ethernet.begin(mac) == 0) {
+    Serial.println("Failed to configure Ethernet using DHCP");
+    if (Ethernet.hardwareStatus() == EthernetNoHardware) {
+      Serial.println("Ethernet shield was not found.  Sorry, can't run without hardware. :(");
+    } else if (Ethernet.linkStatus() == LinkOFF) {
+      Serial.println("Ethernet cable is not connected.");
+    }
+    while (true) {
+      delay(1);
+    }
+  }
+
+  server.begin();
+  Serial.print("server is at ");
+  Serial.println(Ethernet.localIP());
+}
+
+
+void loop() {
+  EthernetClient client = server.available();
+  if (client) {
+    String res = client.readStringUntil('\n');
+    int str_len = res.length() + 1; 
+    char char_array[str_len];
+    res.toCharArray(char_array, str_len);
+    char* method = strtok(char_array, " ");
+    char* path = strtok(0, " ");
+    Serial.println(method);
+    Serial.println(path);
+    if (client.available()) {
+      if (method != "GET") {
+        sendMethodNotAllowed(client);
+      } else {
+        sendHeaders(client);
+      }
+    }
+    delay(15);
+    client.stop();
+  }
+}
+
+void sendHeaders(EthernetClient client) {
+  client.println("HTTP/1.1 200 OK");
+  client.println("Content-Type: text/html");
+  client.println("Connection: close");  // the connection will be closed after completion of the response
+  client.println();
+}
+
+void sendMethodNotAllowed(EthernetClient client) {
+  client.println("HTTP/1.1 405 Method Not Allowed");
+  client.println("Content-Type: text/html");
+  client.println("Allow: GET");
+  client.println("Connection: close");  // the connection will be closed after completion of the response
+  client.println();
+  client.println("<!doctype html>");
+  client.println("<html lang=\"en\">");
+  client.println("<title>Arduino Dashboard</title>");
+  client.println("</head>");
+  client.println("<body>");
+  client.println("<h1>405 Method Not Allowed</h1>");
+  client.println("<p>the method received in the request-line is known by the origin server but not supported by the target resource.</p>");
+  client.println("</body>");
+  client.println("</html>");
+  client.println();
+}