From 0f7008a02e84515e83c4399fe5736ed8d2dc8796 Mon Sep 17 00:00:00 2001
From: Fabio Comuni <fabrix.xm@gmail.com>
Date: Wed, 23 Mar 2011 13:47:05 +0100
Subject: [PATCH] Friendika widgets.

---
 addon/widgets/widgets.js  |  61 ++++++++++++++
 addon/widgets/widgets.php | 169 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 230 insertions(+)
 create mode 100644 addon/widgets/widgets.js
 create mode 100644 addon/widgets/widgets.php

diff --git a/addon/widgets/widgets.js b/addon/widgets/widgets.js
new file mode 100644
index 000000000..7a6cdeb0a
--- /dev/null
+++ b/addon/widgets/widgets.js
@@ -0,0 +1,61 @@
+/**
+ * @author Fabio Comuni
+ */
+
+var f9a_widget = {
+	entrypoint : "$entrypoint",
+	key	: "$key",
+	widgetid: "$widget_id",
+	xmlhttp : null,
+	
+	getXHRObj : function(){
+		if (window.XMLHttpRequest) {
+			// code for IE7+, Firefox, Chrome, Opera, Safari
+		 	this.xmlhttp = new XMLHttpRequest();
+		} else {
+			// code for IE6, IE5
+			this.xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
+		}
+	},
+	
+	dorequest : function(args, cb) {
+		if (args===null) args = new Array();
+		args['k']=this.key;
+		args['s']=window.location;
+		var urlencodedargs = new Array();
+		for(k in args){ urlencodedargs.push( encodeURIComponent(k)+"="+encodeURIComponent(args[k]) ); }
+	
+		var url = this.entrypoint + "?"+ urlencodedargs.join("&");
+
+		this.xmlhttp.open("GET", url  ,true);
+		this.xmlhttp.send();
+		this.xmlhttp.onreadystatechange=function(){
+		  if (this.readyState==4){
+		  	if (this.status==200) {
+		    	cb(this.responseText);
+			} else {
+		  		document.getElementById(f9a_widget.widgetid).innerHTML="Error loading widget.";
+		  	}
+		  }
+		} 
+
+	},
+	
+	requestcb: function(responseText) {
+		document.getElementById(f9a_widget.widgetid).innerHTML=responseText;
+	},
+	
+	load : function (){
+		this.getXHRObj();
+		this.dorequest(null, this.requestcb);
+	}
+
+};
+
+(function() {
+	f9a_widget.load();	
+})();
+
+document.writeln("<div id='$widget_id' class='f9k_widget'>");
+document.writeln("<img id='$widget_id_ld' src='$loader'>");
+document.writeln("</div>");
diff --git a/addon/widgets/widgets.php b/addon/widgets/widgets.php
new file mode 100644
index 000000000..98567753d
--- /dev/null
+++ b/addon/widgets/widgets.php
@@ -0,0 +1,169 @@
+<?php
+	/**
+	 * widgets from friendika
+	 * 
+	 * allow to embed info from friendika into another site
+	 */
+	 
+	 
+function widgets_install() {
+	//  we need some hooks, for the configuration and for sending tweets
+	register_hook('plugin_settings', 'addon/widgets/widgets.php', 'widgets_settings'); 
+	register_hook('plugin_settings_post', 'addon/widgets/widgets.php', 'widgets_settings_post');
+
+	logger("installed widgets");
+}
+
+function widgets_settings_post(){
+	
+	if (isset($_POST['widgets-submit'])){
+		set_pconfig(local_user(), 'widgets', 'site', $_POST['widgets-site']);
+		set_pconfig(local_user(), 'widgets', 'key', $_POST['widgets-key']);
+	}
+}
+
+function widgets_settings(&$a,&$o) {
+    if(! local_user())
+		return;		
+	
+	$key    = get_pconfig(local_user(), 'widgets', 'key' );
+	$site    = get_pconfig(local_user(), 'widgets', 'site' );
+
+	if ($key=='') $key = mt_rand(); 
+
+	$o .='
+	<h3 class="settings-heading">Widgets</h3>
+	<div id="settings-username-wrapper">
+		<label for="widgets-site" id="settings-username-label">'.t('Remote site: ').'</label>
+		<input type="text" value="'.$site.'" id="settings-username" name="widgets-site">
+	</div>
+	<div id="settings-username-end"></div>
+	<div id="settings-username-wrapper">
+		<label for="widgets-key" id="settings-username-label">'.t('Widgets key: ').'</label>
+		<input type="hidden" value="'.$key.'" id="settings-username" name="widgets-key">
+		<strong>'.$key.'</strong>
+	</div>
+	<div id="settings-username-end"></div>
+	
+	
+		
+	<div class="settings-submit-wrapper">
+		<input type="submit" value="'.t('Submit').'" class="settings-submit" name="widgets-submit">
+	</div>	
+	';
+	
+	if ($key!='' and $site!='') {
+		$o.='<h4>Widgets:</h4>
+		<ul>
+			<li><a href="'.$a->get_baseurl().'/widgets/friends/?p=1&k='.$key.'">Friend list</a></li>
+		</ul>
+		';
+	}
+
+}
+
+function widgets_module() {
+	return;
+}
+
+function _abs_url($s){
+	$a = get_app();
+	return preg_replace("|href=(['\"])([^h][^t][^t][^p])|", "href=\$1".$a->get_baseurl()."/\$2", $s);
+}
+
+
+function widgets_content(&$a) {
+
+	if (!isset($_GET['k'])) {
+		if($a->argv[2]=="cb"){header('HTTP/1.0 400 Bad Request'); killme();}
+		return;
+	}
+
+	$r = q("SELECT * FROM pconfig WHERE uid IN (SELECT uid FROM pconfig  WHERE v='%s')AND  cat='widgets'",
+			dbesc($_GET['k'])
+		 );
+	if (!count($r)){
+		if($a->argv[2]=="cb"){header('HTTP/1.0 400 Bad Request'); killme();}
+		return;
+	}    
+	$conf = array();
+	$conf['uid'] = $r[0]['uid'];
+	foreach($r as $e) { $conf[$e['k']]=$e['v']; }
+
+	$o = "";	
+
+//	echo "<pre>"; var_dump($a->argv); die();
+	if ($a->argv[2]=="cb"){
+		switch($a->argv[1]) {
+			case 'friends': 
+				widget_friends_content($a, $o, $conf);
+				break;
+		}
+		
+	} else {
+
+		
+		if (isset($_GET['p'])) {
+			$o .= "<style>.f9k_widget { float: left;border:1px solid black; }</style>";
+			$o .= "<h1>Preview Widget</h1>";
+			$o .= '<a href="'.$a->get_baseurl().'/settings/addon">'. t("Plugin Settings") .'</a>';
+			$o .= "<br style='clear:left'/><br/>";
+			$o .= "<script>";
+		} else {
+			header("content-type: application/x-javascript");
+		}
+	
+	
+
+	
+		$script = file_get_contents(dirname(__file__)."/widgets.js");
+		$o .= replace_macros($script, array(
+			'$entrypoint' => $a->get_baseurl()."/widgets/".$a->argv[1]."/cb/",
+			'$key' => $conf['key'],
+			'$widget_id' => 'f9k_'.$a->argv[1]."_".time(),
+			'$loader' => $a->get_baseurl()."/images/rotator.gif",
+		));
+
+	
+		if (isset($_GET['p'])) {
+			$o .= "</script>
+			<br style='clear:left'/><br/>
+			<h4>Copy and paste this code</h4>
+			<code>"
+			
+			.htmlspecialchars('<script src="'.$a->get_baseurl().'/widgets/'.$a->argv[1].'?k='.$conf['key'].'"></script>')
+			."</code>";
+			return $o;
+		}	
+		
+	}	
+	
+	echo $o;
+	killme();
+}
+
+
+function widget_friends_content(&$a, &$o, $conf){
+	if (!local_user()){
+		if (!isset($_GET['s']))
+			header('HTTP/1.0 400 Bad Request');
+		
+		if (substr($_GET['s'],0,strlen($conf['site'])) !== $conf['site'])
+			header('HTTP/1.0 400 Bad Request');
+	} 
+	$r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.* FROM `profile` 
+			LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
+			WHERE `user`.`uid` = %s AND `profile`.`is-default` = 1 LIMIT 1",
+			intval($conf['uid'])
+	);
+	
+	if(!count($r)) return;
+	$a->profile = $r[0];
+
+	$o .= _abs_url(contact_block());
+	$o .= "<a href='".$a->get_baseurl().'/profile/'.$a->profile['nickname']."'>". t('Connect on Friendika!') ."</a>";
+	
+
+}
+ 
+?>