Only show wiki delete control if channel owner

Zotlabs/Module/Wiki.php

@@ -78,6 +78,7 @@ class Wiki extends \Zotlabs\Web\Controller {
 		
 		if(argc()<3) {
 			// GET /wiki/channel
+			$channel = get_channel_by_nick(argv(1));
 			$wikiheader = t('Wiki Sandbox');
 			$content = '"# Wiki Sandbox\n\nContent you **edit** and **preview** here *will not be saved*."';
 			$hide_editor = false;

include/widgets.php

@@ -857,19 +857,25 @@ function widget_chatroom_members() {
 function widget_wiki_list($arr) {
 
 	require_once("include/wiki.php");
-	if(argc()>1) {
+	if (argc() > 1) {
 		$nick = argv(1);
+		$channel = get_channel_by_nick($nick);
 	} else {
 		$channel = \App::get_channel();
 		$nick = $channel['channel_address'];
 	}
-	$wikis = wiki_list($nick, get_observer_hash());
-
-	if($wikis) {
+	$wikis = wiki_list($channel, get_observer_hash());
+	if (local_channel() === intval($channel['channel_id'])) {
+		$showControls = true;
+	} else {
+		$showControls = false;
+	}
+	if ($wikis) {
 		return replace_macros(get_markup_template('wikilist.tpl'), array(
 			'$header' => t('Wiki List'),
 			'$channel' => $nick,
-			'$wikis' => $wikis['wikis']
+			'$wikis' => $wikis['wikis'],
+			'$showControls' => $showControls
 		));
 	}
 }

include/wiki.php

@@ -7,9 +7,9 @@
 use \Zotlabs\Storage\GitRepo as GitRepo;
 define ( 'WIKI_ITEM_RESOURCE_TYPE', 'wiki' );
 
-function wiki_list($nick, $observer_hash) {
+function wiki_list($channel, $observer_hash) {
 	if (local_channel() || remote_channel()) {
-		$sql_extra = item_permissions_sql(get_channel_by_nick($nick)['channel_id'], $observer_hash);
+		$sql_extra = item_permissions_sql($channel['channel_id'], $observer_hash);
 	} else {
 		$sql_extra = " AND item_private = 0 ";
 	}

view/tpl/wikilist.tpl

@@ -8,8 +8,10 @@
             </a>  
             <ul class="dropdown-menu  pull-right">  
               <li><a href="/wiki/{{$channel}}/{{$wiki.title}}/Home.md" title="View  {{$wiki.title}}">View</a></li>
+              {{if $showControls}}
               <li class="divider"></li>  
               <li><a href="#" onclick="wiki_delete_wiki('{{$wiki.title}}','{{$wiki.resource_id}}'); return false;" title="Delete {{$wiki.title}}">Delete wiki</a></li>                                
+              {{/if}}
             </ul>  
         </li>  
 		{{/foreach}}