Merge branch 'master', remote-tracking branch 'remotes/upstream/master'

* remotes/upstream/master:
  sort inbox by recently replied conversations first
  file as widget and basic filing implementation for duepuntozero,slackr much more work needed - this is just for test/evaluation currently
  don't count self in number of contatcs
  invite potential connectees to the free social web
  In HTML2BBCode: fetch the URL of [EMBED] using JavaScript instead of an ajax-call to a php-script. Once there actually is embedded Code in the HTML, this function is called after every single keypress. Not only is making an ajax-call every keypress bandith intensive - it also made typing hard / slow. Making a lot of JavaScript-RegExp-Computation every keypress isn't exactly great either, but still performs better.
  Some security against XSRF-attacks
  A 'PHP Fatal error:  Call to a member function getElementsByTagName() on a non-object in mod/parse_url.php on line 191' occurred when the linked HTML-File doesn't have a HEAD. The HTML-file couln't be link to in the editor therefore.
  Mostly some checks in order to avoid Notices; 1 real bugfix in /mod/network.php
  Avoid notices
  contact.network is used later to check if a direct link or a redirect by /redir/contactid should be used
  wasn't actually changed before
  Avoid a notice
  Avoid a Notice
  Avoid a Notice
  Avoid a Notice

* master:

8 files changed, 96 insertions, 10 deletions

diff --git a/include/contact_widgets.php b/include/contact_widgets.php
index caa0572d2..605a3eb78 100755
--- a/include/contact_widgets.php
+++ b/include/contact_widgets.php
@@ -75,4 +75,33 @@ function networks_widget($baseurl,$selected = '') {
 	));
 }
 
+function fileas_widget($baseurl,$selected = '') {
+	$a = get_app();
+	if(! local_user())
+		return '';
+
+	$saved = get_pconfig(local_user(),'system','filetags');
+	if(! strlen($saved))
+		return;
+
+	$matches = false;
+	$terms = array();
+    $cnt = preg_match_all('/\[(.*?)\]/',$saved,$matches,PREG_SET_ORDER);
+    if($cnt) {
+		foreach($matches as $mtch) {
+			$unescaped = file_tag_decode($mtch[1]);
+			$terms[] = array('name' => $unescaped,'selected' => (($selected == $unescaped) ? 'selected' : ''));
+		}
+	}
+
+	return replace_macros(get_markup_template('fileas_widget.tpl'),array(
+		'$title' => t('File Selections'),
+		'$desc' => '',
+		'$sel_all' => (($selected == '') ? 'selected' : ''),
+		'$all' => t('Everything'),
+		'$terms' => $terms,
+		'$base' => $baseurl,
+
+	));
+}
 
diff --git a/include/conversation.php b/include/conversation.php
index 526c6ea00..a420e9923 100755
--- a/include/conversation.php
+++ b/include/conversation.php
@@ -375,7 +375,8 @@ function conversation(&$a, $items, $mode, $update, $preview = false) {
 						$comments[$item['parent']] = 1;
 					else
 						$comments[$item['parent']] += 1;
-				}
+				} elseif(! x($comments,$item['parent'])) 
+					$comments[$item['parent']] = 0; // avoid notices later on
 			}
 
 			// map all the like/dislike activities for each parent item 
@@ -571,6 +572,7 @@ function conversation(&$a, $items, $mode, $update, $preview = false) {
 						'classundo' => (($item['starred']) ? "" : "hidden"),
 						'starred' =>  t('starred'),
 						'tagger' => t("add tag"),
+						'filer' => t("file as"),
 						'classtagger' => "",
 					);
 				}
@@ -873,6 +875,7 @@ function status_editor($a,$x, $notes_cid = 0, $popup=false) {
 		'$vidurl' => t("Please enter a video link/URL:"),
 		'$audurl' => t("Please enter an audio link/URL:"),
 		'$term' => t('Tag term:'),
+		'$fileas' => t('File as:'),
 		'$whereareu' => t('Where are you right now?'),
 		'$title' => t('Enter a title for this item') 
 	));
@@ -915,7 +918,7 @@ function status_editor($a,$x, $notes_cid = 0, $popup=false) {
 	$o .= replace_macros($tpl,array(
 		'$return_path' => $a->cmd,
 		'$action' =>  $a->get_baseurl().'/item',
-		'$share' => (($x['button']) ? $x['button'] : t('Share')),
+		'$share' => (x($x,'button') ? $x['button'] : t('Share')),
 		'$upload' => t('Upload photo'),
 		'$shortupload' => t('upload photo'),
 		'$attach' => t('Attach file'),
@@ -980,8 +983,8 @@ function conv_sort($arr,$order) {
 		usort($parents,'sort_thr_commented');
 
 	if(count($parents))
-		foreach($parents as $x) 
-			$x['children'] = array();
+		foreach($parents as $i=>$_x) 
+			$parents[$i]['children'] = array();
 
 	foreach($arr as $x) {
 		if($x['id'] != $x['parent']) {
diff --git a/include/event.php b/include/event.php
index 4a9a9a004..29202badd 100755
--- a/include/event.php
+++ b/include/event.php
@@ -163,7 +163,7 @@ function bbtoevent($s) {
 	if(preg_match("/\[event\-adjust\](.*?)\[\/event\-adjust\]/is",$s,$match))
 		$ev['adjust'] = $match[1];
 	$match = '';
-	$ev['nofinish'] = (($ev['start'] && (!x($ev, 'finish') || !$ev['finish'])) ? 1 : 0);
+	$ev['nofinish'] = (((x($ev, 'start') && $ev['start']) && (!x($ev, 'finish') || !$ev['finish'])) ? 1 : 0);
 	return $ev;
 
 }
diff --git a/include/items.php b/include/items.php
index 1a7aa6c46..70c72ae16 100755
--- a/include/items.php
+++ b/include/items.php
@@ -682,7 +682,7 @@ function item_store($arr,$force_parent = false) {
 		unset($arr['dsprsig']);
 	}
 
-	if($arr['gravity'])
+	if(x($arr, 'gravity'))
 		$arr['gravity'] = intval($arr['gravity']);
 	elseif($arr['parent-uri'] === $arr['uri'])
 		$arr['gravity'] = 0;
@@ -742,6 +742,7 @@ function item_store($arr,$force_parent = false) {
 
 	if($arr['parent-uri'] === $arr['uri']) {
 		$parent_id = 0;
+		$parent_deleted = 0;
 		$allow_cid = $arr['allow_cid'];
 		$allow_gid = $arr['allow_gid'];
 		$deny_cid  = $arr['deny_cid'];
@@ -800,6 +801,8 @@ function item_store($arr,$force_parent = false) {
 				logger('item_store: item parent was not found - ignoring item');
 				return 0;
 			}
+			
+			$parent_deleted = 0;
 		}
 	}
 
diff --git a/include/oembed.php b/include/oembed.php
index 5c3c595f5..52068efc7 100755
--- a/include/oembed.php
+++ b/include/oembed.php
@@ -62,7 +62,7 @@ function oembed_fetch_url($embedurl){
 	
 function oembed_format_object($j){
 	$embedurl = $j->embedurl;
-	$jhtml = oembed_iframe($j->embedurl,$j->width,$j->height );
+	$jhtml = oembed_iframe($j->embedurl,(isset($j->width) ? $j->width : null), (isset($j->height) ? $j->height : null) );
 	$ret="<span class='oembed ".$j->type."'>";
 	switch ($j->type) {
 		case "video": {
diff --git a/include/security.php b/include/security.php
index 8c536b656..6ea515bff 100755
--- a/include/security.php
+++ b/include/security.php
@@ -288,3 +288,49 @@ function item_permissions_sql($owner_id,$remote_verified = false,$groups = null)
 }
 
 
+/*
+ * Functions used to protect against Cross-Site Request Forgery
+ * The security token has to base on at least one value that an attacker can't know - here it's the session ID and the private key.
+ * In this implementation, a security token is reusable (if the user submits a form, goes back and resubmits the form, maybe with small changes;
+ * or if the security token is used for ajax-calls that happen several times), but only valid for a certain amout of time (3hours).
+ * The "typename" seperates the security tokens of different types of forms. This could be relevant in the following case:
+ *    A security token is used to protekt a link from CSRF (e.g. the "delete this profile"-link).
+ *    If the new page contains by any chance external elements, then the used security token is exposed by the referrer.
+ *    Actually, important actions should not be triggered by Links / GET-Requests at all, but somethimes they still are,
+ *    so this mechanism brings in some damage control (the attacker would be able to forge a request to a form of this type, but not to forms of other types).
+ */ 
+function get_form_security_token($typename = "") {
+	$a = get_app();
+	
+	$timestamp = time();
+	$sec_hash = hash('whirlpool', $a->user["guid"] . $a->user["prvkey"] . session_id() . $timestamp . $typename);
+	
+	return $timestamp . "." . $sec_hash;
+}
+
+function check_form_security_token($typename = "", $formname = 'form_security_token') {
+	if (!x($_REQUEST, $formname)) return false;
+	$hash = $_REQUEST[$formname];
+	
+	$max_livetime = 10800; // 3 hours
+	
+	$a = get_app();
+	
+	$x = explode(".", $hash);
+	if (time() > (IntVal($x[0]) + $max_livetime)) return false;
+	
+	$sec_hash = hash('whirlpool', $a->user["guid"] . $a->user["prvkey"] . session_id() . $x[0] . $typename);
+	
+	return ($sec_hash == $x[1]);
+}
+
+function check_form_security_std_err_msg() {
+	return t('The form security token was not correct. This probably happened because the form has been opened for too long (>3 hours) before subitting it.') . EOL;
+}
+function check_form_security_token_redirectOnErr($err_redirect, $typename = "", $formname = 'form_security_token') {
+	if (!check_form_security_token($typename, $formname)) {
+		$a = get_app();
+		notice( check_form_security_std_err_msg() );
+		goaway($a->get_baseurl() . $err_redirect );
+	}
+}
diff --git a/include/template_processor.php b/include/template_processor.php
index 8671587fc..7f7b0b55b 100755
--- a/include/template_processor.php
+++ b/include/template_processor.php
@@ -80,8 +80,13 @@
 		 */
 		private function _replcb_for($args){
 			$m = array_map('trim', explode(" as ", $args[2]));
-			list($keyname, $varname) = explode("=>",$m[1]);
-			if (is_null($varname)) { $varname=$keyname; $keyname=""; }
+			$x = explode("=>",$m[1]);
+			if (count($x) == 1) {
+				$varname = $x[0];
+				$keyname = "";
+			} else {
+				list($keyname, $varname) = $x;
+			}
 			if ($m[0]=="" || $varname=="" || is_null($varname)) die("template error: 'for ".$m[0]." as ".$varname."'") ;
 			//$vals = $this->r[$m[0]];
 			$vals = $this->_get_var($m[0]);
diff --git a/include/text.php b/include/text.php
index 2663bdeba..c44b4d178 100644
--- a/include/text.php
+++ b/include/text.php
@@ -1294,7 +1294,7 @@ function file_tag_save_file($uid,$item,$file) {
 	if(count($r)) {
 		if(! stristr($r[0]['file'],'[' . file_tag_encode($file) . ']'))
 			q("update item set file = '%s' where id = %d and uid = %d limit 1",
-				dbesc($r[0]['file'] . '[' . $file_tag_encode($file) . ']'),
+				dbesc($r[0]['file'] . '[' . file_tag_encode($file) . ']'),
 				intval($item),
 				intval($uid)
 			);