Wiki pages can be saved.

3 files changed, 83 insertions, 6 deletions

diff --git a/Zotlabs/Module/Wiki.php b/Zotlabs/Module/Wiki.php
index a53cb3f6a..5d293e6f0 100644
--- a/Zotlabs/Module/Wiki.php
+++ b/Zotlabs/Module/Wiki.php
@@ -51,6 +51,7 @@ class Wiki extends \Zotlabs\Web\Controller {
     );
 
 		$resource_id = '';
+		$pagename = '';
 		if(argc()>2) {
 			// Check if wiki exists andr redirect if it does not
 			$channel = get_channel_by_nick(argv(1));
@@ -68,12 +69,13 @@ class Wiki extends \Zotlabs\Web\Controller {
 			$showPageControls = false;
 		} elseif (argc()<4) {
 			$wikiheader = rawurldecode(argv(2)); // show wiki name
-			$content = '';
+			$content = '""';
 			$hide_editor = true;	
 			$showPageControls = true;
 		} elseif (argc()<5) {
-			$wikiheader = rawurldecode(argv(2)) . ': ' . rawurldecode(argv(3));	// show wiki name and page			
-			$p = wiki_get_page_content(array('wiki_resource_id' => $resource_id, 'page' => argv(3)));
+			$pagename = argv(3);
+			$wikiheader = rawurldecode(argv(2)) . ': ' . rawurldecode($pagename);	// show wiki name and page			
+			$p = wiki_get_page_content(array('wiki_resource_id' => $resource_id, 'page' => $pagename));
 			if(!$p['success']) {
 				logger('Error getting page content');
 				$content = 'Error retrieving page content. Try again.';
@@ -82,7 +84,6 @@ class Wiki extends \Zotlabs\Web\Controller {
 			$hide_editor = false;
 			$showPageControls = true;
 		}
-		
 		$parsedown = new Parsedown();
 		$renderedContent = $parsedown->text(json_decode($content));
 		
@@ -92,6 +93,7 @@ class Wiki extends \Zotlabs\Web\Controller {
 			'$showPageControls' => $showPageControls,
 			'$channel' => $channel['channel_address'],
 			'$resource_id' => $resource_id,
+			'$page' => $pagename,
 			'$lockstate' => $x['lockstate'],
 			'$acl' => $x['acl'],
 			'$bang' => $x['bang'],
@@ -238,6 +240,40 @@ class Wiki extends \Zotlabs\Web\Controller {
 			json_return_and_die(array('pages' => $page_list_html, 'message' => '', 'success' => true));					
 		}
 		
+		// Save a page
+		if ((argc() === 4) && (argv(2) === 'save') && (argv(3) === 'page')) {
+			$which = argv(1);
+			$resource_id = $_POST['resource_id']; 
+			$pagename = escape_tags(urlencode($_POST['name'])); 
+			$content = escape_tags($_POST['content']); //Get new content
+			// Determine if observer has permission to create wiki
+			if (local_channel()) {
+				$channel = \App::get_channel();
+			} else {
+				$channel = get_channel_by_nick($which);
+				$observer_hash = get_observer_hash();
+				// Figure out who the page owner is.
+				$perms = get_all_perms(intval($channel['channel_id']), $observer_hash);
+				// TODO: Create a new permission setting for wiki analogous to webpages. Until
+				// then, use webpage permissions
+				if (!$perms['write_pages']) {
+					logger('Wiki editing permission denied.' . EOL);
+					json_return_and_die(array('success' => false));
+				}
+				$perms = wiki_get_permissions($resource_id, intval($channel['channel_id']), $observer_hash);
+				if(!$perms['write']) {
+					logger('Wiki write permission denied. Read only.' . EOL);
+					json_return_and_die(array('success' => false));					
+				}
+			}
+			$saved = wiki_save_page(array('resource_id' => $resource_id, 'name' => $pagename, 'content' => $content));
+			if($saved['success']) {
+				json_return_and_die(array('success' => true));					
+			} else {
+				json_return_and_die(array('success' => false));					
+			}
+		}
+		
 		//notice('You must be authenticated.');
 		json_return_and_die(array('message' => 'You must be authenticated.', 'success' => false));
 		
diff --git a/include/wiki.php b/include/wiki.php
index f97036c29..e01cc12c3 100644
--- a/include/wiki.php
+++ b/include/wiki.php
@@ -232,4 +232,26 @@ function wiki_get_page_content($arr) {
 		// TODO: Check that the files are all text files
 		return array('content' => json_encode($content), 'message' => '', 'success' => true);
 	}
+}
+
+
+function wiki_save_page($arr) {
+	$pagename = ((array_key_exists('name',$arr)) ? $arr['name'] : '');
+	$content = ((array_key_exists('content',$arr)) ? $arr['content'] : '');
+	$resource_id = ((array_key_exists('resource_id',$arr)) ? $arr['resource_id'] : '');
+	$w = wiki_get_wiki($resource_id);
+	if (!$w['path']) {
+		return array('message' => 'Error reading wiki', 'success' => false);
+	}
+	$page_path = $w['path'].'/'.$pagename;
+	if (is_writable($page_path) === true) {
+		if(!file_put_contents($page_path, $content)) {
+			return array('message' => 'Error writing to page file', 'success' => false);
+		}
+		return array('message' => '', 'success' => true);
+	} else {
+		return array('message' => 'Page file not writable', 'success' => false);
+	}
+	
+	
 }
\ No newline at end of file
diff --git a/view/tpl/wiki.tpl b/view/tpl/wiki.tpl
index 9610eea63..e931cd6e6 100644
--- a/view/tpl/wiki.tpl
+++ b/view/tpl/wiki.tpl
@@ -55,8 +55,8 @@
       <li class="dropdown">
         <a data-toggle="dropdown" class="dropdown-toggle" href="#">Page <b class="caret"></b></a>
         <ul class="dropdown-menu">
-          <li><a data-toggle="tab" href="#save">Save</a></li>
-          <li><a data-toggle="tab" href="#delete">Delete</a></li>
+          <li><a id="save-page" data-toggle="tab" href="#">Save</a></li>
+          <li><a id="delete-page" data-toggle="tab" href="#">Delete</a></li>
         </ul>
       </li>
       {{/if}}
@@ -79,6 +79,7 @@
 
 <script>
   window.wiki_resource_id = '{{$resource_id}}';
+  window.wiki_page_name = '{{$page}}';
   $(document).ready(function () {
     wiki_refresh_page_list();
     // Show Edit tab first. Otherwise the Ace editor does not load.
@@ -150,4 +151,22 @@ function wiki_delete_wiki(wikiName, resource_id) {
     }, 'json');
     return false;
   }
+  
+    $('#save-page').click(function (ev) {
+    if (window.wiki_resource_id === '' || window.wiki_page_name === '') {
+      window.console.log('You must have a wiki page open in order to edit pages.');
+      ev.preventDefault();
+      return false;
+    }
+    $.post("wiki/{{$channel}}/save/page", {content: editor.getValue(), name: window.wiki_page_name, resource_id: window.wiki_resource_id}, 
+      function (data) {
+        if (data.success) {
+          window.console.log('Page saved successfully.');
+        } else {
+          alert('Error saving page.'); // TODO: Replace alerts with auto-timeout popups 
+          window.console.log('Error saving page.');
+        }
+      }, 'json');
+    ev.preventDefault();
+  });
 </script>