Diff: HTTPRestHandler.cpp

Revision:

0:6dee052a3fa4

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/HTTPRestHandler.cpp	Tue Jul 26 05:30:53 2011 +0000
@@ -0,0 +1,94 @@
+#include "HTTPRestHandler.h"
+#include "stdio.h"
+#include "TemperatureSensor.h"
+#include "RGBLed.h"
+
+extern TemperatureSensor sensor;
+extern RGBLed rgb;
+
+HTTPStatus HTTPRestHandler::doGet(char *resource, HTTPConnection *conn) const {
+    printf("HTTPRestHandler GET: %s\n", resource);
+
+    HTTPRestData *d= new HTTPRestData();
+    char *host;
+    char buffer[20];
+
+    // The host field string can have junk at the end...
+    host= (char*) conn->getField("Host");
+    for (char *p= host; *p != 0; p++) {
+        if(!isprint(*p)) {
+            *p= 0;
+        }
+    }
+
+    if (strcmp(resource, "/") == 0) {
+        strcat(d->response, "{\"temperature\":\"http://");
+        strcat(d->response, host);
+        strcat(d->response, conn->getURL());
+        strcat(d->response, "temperature\",\"rgbled\":\"http://");
+        strcat(d->response, host);
+        strcat(d->response, conn->getURL());
+        strcat(d->response, "rgbled\"}");
+    } else if (strcmp(resource, "/temperature") == 0) {
+        sensor.measure();
+        sprintf(buffer, "%f", sensor.getKelvin());
+    
+        strcat(d->response, "{\"realtime-uri\":\"ws://");
+        strcat(d->response, host);
+        strcat(d->response, "/ws/\",\"format\":\"text/csv\",\"fields\":\"ADC,resistence,temperature\",\"calibration\":\"http:/");
+        strcat(d->response, conn->getURL());
+        strcat(d->response, "/calibration\",");
+        strcat(d->response, "\"units\":\"kelvin\",\"value\":");
+        strcat(d->response, buffer);
+        strcat(d->response, "}");
+    } else if (strcmp(resource, "/temperature/calibration") == 0) {
+        strcat(d->response, "{TODO}");
+    } else if (strcmp(resource, "/rgbled") == 0) {
+        strcat(d->response, "{\"web-socket-uri\":\"ws://");
+        strcat(d->response, host);
+        strcat(d->response, "/ws/\",\"format\":\"text/csv\",\"fields\":\"red,green,blue\"}");
+    } else return HTTP_NotFound;
+
+    //conn->setHeaderFields("Content-Type: application/json");
+    conn->setLength(strlen(d->response));
+    conn->data= d;
+
+    //printf("json: [ %s ]\n", static_cast<HTTPRestData*>(conn->data)->response);
+    return HTTP_OK;
+}
+
+HTTPStatus HTTPRestHandler::doPost(char *resource, HTTPConnection *conn) const {
+    printf("HTTPRestHandler POST: %s\n",  resource);
+    return HTTP_NotFound;
+}
+
+void HTTPRestHandler::reg(HTTPServer *server) {
+    server->registerField("Host");
+}
+
+HTTPStatus HTTPRestHandler::init(HTTPConnection *conn) const {
+    char *resource=  conn->getURL() + prefixLength;
+    switch (conn->getType()) {
+        case GET:
+            return doGet(resource, conn);
+
+        case POST:
+            return doPost(resource, conn);
+    }
+    return HTTP_BadRequest;
+}
+
+
+HTTPHandle HTTPRestHandler::data(HTTPConnection *conn, void *data, int len) const {
+    //printf("REST data()\n");
+    return HTTP_SuccessEnded;
+}
+
+HTTPHandle HTTPRestHandler::send(HTTPConnection *conn, int maxData) const {
+    HTTPRestData *d= static_cast<HTTPRestData*>(conn->data);
+    const char *str= d->response;
+    int len= strlen(str);
+    printf("REST send: %d [ %s ]\n", len, str);
+    conn->write((void*)str, len);
+    return HTTP_SuccessEnded;
+}