Merge pull request #315 from annando/master

IFTTT: New plugin for mirroring Facebook posts

ifttt/README.md

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+IFTTT Connector
+===============
+
+The purpose of this connector is to use [IFTTT](http://www.ifttt.com) 
+to mirror posts from remote networks like Facebook.
+
+IFTTT (IF This Then That) is a service that triggers commands on 
+definable conditions.
+
+Its main purpose is to mirror your own posts from Facebook as if they 
+would have been posted directly on Friendica but it should be possible 
+to mirror posts from other networks as well.
+
+Every time when IFTTT detects that there is a new post on the remote 
+network, it triggers an HTTP POST call on the Friendica server that 
+creates a post from the connected account.
+
+By now there is a posting loop detection for Facebook but not for any 
+other network. So please be careful to not mirror from networks where 
+you post your items via Friendica.

ifttt/ifttt.php

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+<?php
+/**
+ * Name: IFTTT Receiver
+ * Description: Receives a post from https://ifttt.com/ and distributes it.
+ * Version: 0.1
+ * Author: Michael Vogel <https://pirati.ca/profile/heluecht>
+ */
+
+require_once("mod/item.php");
+require_once("include/items.php");
+
+function ifttt_install() {
+	register_hook('connector_settings',     'addon/ifttt/ifttt.php', 'ifttt_settings');
+	register_hook('connector_settings_post','addon/ifttt/ifttt.php', 'ifttt_settings_post');
+}
+
+function ifttt_uninstall() {
+	unregister_hook('connector_settings',   'addon/ifttt/ifttt.php', 'ifttt_settings');
+	unregister_hook('connector_settings_post', 'addon/ifttt/ifttt.php', 'ifttt_settings_post');
+}
+
+function ifttt_module() {
+}
+
+function ifttt_content(&$a) {
+}
+
+function ifttt_settings(&$a,&$s) {
+
+        if(! local_user())
+                return;
+
+        $key = get_pconfig(local_user(),'ifttt','key');
+
+	if (!$key) {
+		$key = substr(random_string(),0,20);
+        	set_pconfig(local_user(),'ifttt','key', $key);
+	}
+
+	$s .= '<span id="settings_ifttt_inflated" class="settings-block fakelink" style="display: block;" onclick="openClose(\'settings_ifttt_expanded\'); openClose(\'settings_ifttt_inflated\');">';
+        $s .= '<img class="connector" src="addon/ifttt/ifttt.png" /><h3 class="connector">'. t('IFTTT Mirror').'</h3>';
+        $s .= '</span>';
+        $s .= '<div id="settings_ifttt_expanded" class="settings-block" style="display: none;">';
+        $s .= '<span class="fakelink" onclick="openClose(\'settings_ifttt_expanded\'); openClose(\'settings_ifttt_inflated\');">';
+        $s .= '<img class="connector" src="addon/ifttt/ifttt.png" /><h3 class="connector">'. t('IFTTT Mirror').'</h3>';
+        $s .= '</span>';
+
+        $s .= '<div id="ifttt-configuration-wrapper">';
+	$s .= '<p>'.t("Create an account at <a href='http://www.ifttt.com'>IFTTT</a>. Create three Facebook recipes that are connected with 'Maker' with the following parameters:").'</p>';
+	$s .= '<h4>URL</h4>';
+	$s .= '<p>'.$a->get_baseurl()."/ifttt/".'</p>';
+	$s .= '<h4>Method</h4>';
+	$s .= '<p>POST</p>';
+	$s .= '<h4>Content Type</h4>';
+	$s .= '<p>application/x-www-form-urlencoded</p>';
+	$s .= '<h4>'.t("Body for 'new status message'").'</h4>';
+	$s .= '<p><code>'.htmlentities('key='.$key.'&type=status&msg=<<<{{Message}}>>>&date=<<<{{UpdatedAt}}>>>&url=<<<{{PageUrl}}>>>').'</code></p>';
+	$s .= '<h4>'.t("Body for 'new photo upload'").'</h4>';
+	$s .= '<p><code>'.htmlentities('key='.$key.'&type=photo&link=<<<{{Link}}>>>&image=<<<{{ImageSource}}>>>&msg=<<<{{Caption}}>>>&date=<<<{{CreatedAt}}>>>&url=<<<{{PageUrl}}>>>').'</code></p>';
+	$s .= '<h4>'.t("Body for 'new link post'").'</h4>';
+	$s .= '<p><code>'.htmlentities('key='.$key.'&type=link&link=<<<{{Link}}>>>&title=<<<{{Title}}>>>&msg=<<<{{Message}}>>>&description=<<<{{Description}}>>>&date=<<<{{CreatedAt}}>>>&url=<<<{{PageUrl}}>>>').'</code></p>';
+        $s .= '</div><div class="clear"></div>';
+
+        $s .= '<div id="ifttt-rekey-wrapper">';
+        $s .= '<label id="ifttt-rekey-label" for="ifttt-checkbox">' . t('Generate new key') . '</label>';
+        $s .= '<input id="ifttt-checkbox" type="checkbox" name="ifttt-rekey" value="1" />';
+        $s .= '</div><div class="clear"></div>';
+
+	$s .= '<div class="settings-submit-wrapper" ><input type="submit" name="ifttt-submit" class="settings-submit" value="' . t('Save Settings') . '" /></div>';
+        $s .= '</div>';
+
+}
+
+function ifttt_settings_post(&$a,&$b) {
+
+        if(x($_POST,'ifttt-submit'))
+                if (isset($_POST['ifttt-rekey']))
+                        del_pconfig(local_user(), 'ifttt', 'key');
+}
+
+function ifttt_post(&$a) {
+	if ($a->argc != 2)
+		return;
+
+	$user = $a->argv[1];
+
+	$r = q("SELECT `uid` FROM `user` WHERE `nickname` = '%s' LIMIT 1", dbesc($user));
+	if (!$r) {
+		logger("User ".$user." not found.", LOGGER_DEBUG);
+		return;
+	}
+
+	$uid = $r[0]["uid"];
+
+	logger("Received a post for user ".$uid." from ifttt ".print_r($_REQUEST, true), LOGGER_DEBUG);
+
+	if (!isset($_REQUEST["key"])) {
+		logger("No key found.");
+		return;
+	}
+
+	$key = $_REQUEST["key"];
+
+	// Check the key
+        if ($key != get_pconfig($uid,'ifttt','key')) {
+		logger("Invalid key for user ".$uid, LOGGER_DEBUG);
+		return;
+	}
+
+	$item = array();
+
+	if (isset($_REQUEST["type"]))
+		$item["type"] = $_REQUEST["type"];
+
+	if (!in_array($item["type"], array("status", "link", "photo"))) {
+		logger("Unknown item type ".$item["type"], LOGGER_DEBUG);
+		return;
+	}
+
+	if (isset($_REQUEST["link"]))
+		$item["link"] = trim($_REQUEST["link"]);
+	if (isset($_REQUEST["image"]))
+		$item["image"] = trim($_REQUEST["image"]);
+	if (isset($_REQUEST["title"]))
+		$item["title"] = trim($_REQUEST["title"]);
+	if (isset($_REQUEST["msg"]))
+		$item["msg"] = trim($_REQUEST["msg"]);
+	if (isset($_REQUEST["description"]))
+		$item["description"] = trim($_REQUEST["description"]);
+	if (isset($_REQUEST["date"]))
+		$item["date"] = date("c", strtotime($date = str_replace(" at ", ", ", $_REQUEST["date"])));
+	if (isset($_REQUEST["url"]))
+		$item["url"] = trim($_REQUEST["url"]);
+
+	if ((substr($item["msg"], 0, 3) == "<<<") AND (substr($item["msg"], -3, 3) == ">>>"))
+		$item["msg"] = substr($item["msg"], 3, -3);
+
+	ifttt_message($uid, $item);
+}
+
+function ifttt_message($uid, $item) {
+
+	$a = get_app();
+
+	$_SESSION["authenticated"] = true;
+	$_SESSION["uid"] = $uid;
+
+	unset($_REQUEST);
+	$_REQUEST["type"] = "wall";
+	$_REQUEST["api_source"] = true;
+	$_REQUEST["profile_uid"] = $uid;
+	$_REQUEST["source"] = "IFTTT";
+	$_REQUEST["title"] = "";
+	$_REQUEST["body"] = $item["msg"];
+	//$_REQUEST["date"] = $item["date"];
+	//$_REQUEST["uri"] = $item["url"];
+
+	if (strstr($item["url"], "facebook.com"))
+		$_REQUEST["extid"] = NETWORK_FACEBOOK;
+
+	if ($item["type"] == "link") {
+		$data = query_page_info($item["link"]);
+
+		if (isset($item["title"]) AND (trim($item["title"]) != ""))
+			$data["title"] = $item["title"];
+
+		if (isset($item["description"]) AND (trim($item["description"]) != ""))
+			$data["text"] = $item["description"];
+
+		$_REQUEST["body"] .=  add_page_info_data($data);
+	} elseif (($item["type"] == "photo") AND ($item["image"] != ""))
+		$_REQUEST["body"] .= "\n\n[img]".$item["image"]."[/img]\n";
+
+	//print_r($_REQUEST);
+	item_post($a);
+}
+?>