fix function name media_isexternal()

remove empty rev from ml()
rename getProperRevision() to getLastRevisionAt()
make getLastRevisionAt() a method of ChangeLog

doku.php

@@ -49,7 +49,8 @@
 $SUM = $INPUT->post->str('summary');
 
 if($DATE_AT) {
-    $rev_t = getProperRevision($ID,$DATE_AT);
+    $pagelog = new PageChangeLog($ID);
+    $rev_t = $pagelog->getLastRevisionAt($DATE_AT);
     if($rev_t === '') {
         $REV = '';
     } else if ($rev_t === false) {

inc/changelog.php

@@ -771,6 +771,25 @@ protected function getNewlinepointer($fp, $finger) {
     public function isCurrentRevision($rev) {
         return $rev == @filemtime($this->getFilename());
     }
+
+    /**
+    * Return an existing revision for a specific date which is 
+    * the current one or younger or equal then the date
+    *
+    * @param string $id 
+    * @param number $date_at timestamp
+    * @return string revision ('' for current)
+    */
+    function getLastRevisionAt($date_at){
+        //requested date_at(timestamp) younger or equal then modified_time($this->id) => load current
+        if($date_at >= @filemtime($this->getFilename())) { 
+            return '';
+        } else if ($rev = $this->getRelativeRevision($date_at+1, -1)) { //+1 to get also the requested date revision
+            return $rev;
+        } else {
+            return false;
+        }
+    }
 }
 
 class PageChangelog extends ChangeLog {
@@ -870,25 +889,3 @@ function getRevisions($id, $first, $num, $chunk_size=8192, $media=false) {
     return $changelog->getRevisions($first, $num);
 }
 
-/**
-* Return an existing revision for a specific date which is 
-* the current one or less or equal then the date
-*
-* @param string $id 
-* @param number $date_at
-* @param boolean $media
-* @return string revision ('' for current)
-*/
-function getProperRevision($id,$date_at,$media = false){
-    $modified_time = @filemtime($media?mediaFN($id):wikiFN($id));
-    if(((int)$date_at) >= $modified_time) { //requestet REV younger or equal then time($id) => load current
-        return '';
-    } else {
-        $log = new PageRevisionLog($id);
-        if($rev = $log->getRelativeRevision($date_at+1, -1,$media)) {
-            return $rev;
-        } else {
-            return false;
-        }
-    }
-}

inc/common.php

@@ -484,6 +484,7 @@ function ml($id = '', $more = '', $direct = true, $sep = '&', $abs = false)
         if(empty($more['w'])) unset($more['w']);
         if(empty($more['h'])) unset($more['h']);
         if(isset($more['id']) && $direct) unset($more['id']);
+        if(isset($more['rev']) && !$more['rev']) unset($more['rev']);
         $more = buildURLparams($more, $sep);
     } else {
         $matches = array();

inc/parser/xhtml.php

@@ -1060,7 +1060,7 @@ function _media ($src, $title=null, $align=null, $width=null,
                       $height=null, $cache=null, $render = true) {
 
         $ret = '';
-        $intern = !is_externalmedia($src);
+        $intern = !media_isexternal($src);
         list($ext,$mime,$dl) = mimetype($src);
         if(substr($mime,0,5) == 'image'){
             // first get the $title
@@ -1248,7 +1248,8 @@ function _getMediaLinkConf($src, $title, $align, $width, $height, $cache, $rende
      * @return string revision ('' for current) 
      */
     function _getProperMediaRevision($media_id){
-        return getProperRevision($media_id,$this->date_at,true);
+        $pagelog = new MediaChangeLog($media_id);
+        return $pagelog->getLastRevisionAt($this->date_at);
     }