Working code for ifttt-webhook

xmlrpc.php

@@ -0,0 +1,123 @@
+<?php
+$request_body = file_get_contents('php://input');
+$xml = simplexml_load_string($request_body);
+
+switch($xml->methodName)
+{
+	//first authentication request from ifttt
+	case 'metaWeblog.getRecentPosts':
+		//send a blank blog response
+		//this also makes sure that the channel is never triggered
+		output('<array><data></data></array>');
+		break;
+
+	case 'metaWeblog.newPost':
+		//@see http://codex.wordpress.org/XML-RPC_WordPress_API/Posts#wp.newPost
+		$obj = new stdClass;
+		//get the parameters from xml
+		$obj->user = (string)$xml->params->param[1]->value->string;
+		$obj->pass = (string)$xml->params->param[2]->value->string;
+
+		//@see content in the wordpress docs
+		$content = $xml->params->param[3]->value->struct->member;
+		foreach($content as $data)
+		{
+			switch((string)$data->name)
+			{
+				//we use the tags field for providing webhook URL
+				case 'mt_keywords':
+					$url = $data->xpath('value/array/data/value/string');
+					$url = (string)$url[0];
+					break;
+
+				//the passed categories are parsed into an array
+				case 'categories':
+					$categories=array();
+					foreach($data->xpath('value/array/data/value/string') as $cat)
+						array_push($categories,(string)$cat);
+					$obj->categories = $categories;
+					break;
+
+				//this is used for title/description
+				default:
+					$obj->{$data->name} = (string)$data->value->string;
+			}
+		}
+
+		//Make the webrequest
+		//Only if we have a valid url
+		if(filter_var($url, FILTER_VALIDATE_URL))
+		{
+			// Load Requests Library
+			include('requests/Requests.php');
+			Requests::register_autoloader();
+
+			$headers = array('Content-Type' => 'application/json');
+			$response = Requests::post($url, $headers, json_encode($obj));
+
+			if($response->success)
+				success('<string>1</string>');
+			else
+				failure($response->status_code);
+		}
+		else
+		{
+			//since the url was invalid, we return 400 (Bad Request)
+			failure(400);
+		}
+
+}
+
+/** Copied from wordpress */
+
+function success($innerXML)
+{
+	$xml =  <<<EOD
+<?xml version="1.0"?>
+<methodResponse>
+  <params>
+    <param>
+      <value>
+      $innerXML
+      </value>
+    </param>
+  </params>
+</methodResponse>
+
+EOD;
+	output($xml);
+}
+
+function output($xml){
+	$length = strlen($xml);
+	header('Connection: close');
+	header('Content-Length: '.$length);
+	header('Content-Type: text/xml');
+	header('Date: '.date('r'));
+	echo $xml;
+	exit;
+}
+
+function failure($status){
+$xml= <<<EOD
+<?xml version="1.0"?>
+<methodResponse>
+  <fault>
+    <value>
+      <struct>
+        <member>
+          <name>faultCode</name>
+          <value><int>$status</int></value>
+        </member>
+        <member>
+          <name>faultString</name>
+          <value><string>Request was not successful.</string></value>
+        </member>
+      </struct>
+    </value>
+  </fault>
+</methodResponse>
+
+EOD;
+output($xml);
+}