1 files changed, 28 insertions, 16 deletions

diff --git a/inc/Mailer.class.php b/inc/Mailer.class.php
index 0f3321bb9..186bd531a 100644
--- a/inc/Mailer.class.php
+++ b/inc/Mailer.class.php
@@ -41,9 +41,10 @@ class Mailer {
         global $conf;
 
         $server = parse_url(DOKU_URL, PHP_URL_HOST);
+        if(strpos($server,'.') === false) $server = $server.'.localhost';
 
-        $this->partid   = md5(uniqid(rand(), true)).'@'.$server;
-        $this->boundary = '----------'.md5(uniqid(rand(), true));
+        $this->partid   = substr(md5(uniqid(rand(), true)),0, 8).'@'.$server;
+        $this->boundary = '__________'.md5(uniqid(rand(), true));
 
         $listid = join('.', array_reverse(explode('/', DOKU_BASE))).$server;
         $listid = strtolower(trim($listid, '.'));
@@ -57,6 +58,7 @@ class Mailer {
         $this->setHeader('X-DokuWiki-Server', $server);
         $this->setHeader('X-Auto-Response-Suppress', 'OOF');
         $this->setHeader('List-Id', $conf['title'].' <'.$listid.'>');
+        $this->setHeader('Date', date('r'), false);
     }
 
     /**
@@ -417,6 +419,8 @@ class Mailer {
         $part = 1;
         // embedded attachments
         foreach($this->attach as $media) {
+            $media['name'] = str_replace(':', '_', cleanID($media['name'], true));
+
             // create content id
             $cid = 'part'.$part.'.'.$this->partid;
 
@@ -426,13 +430,13 @@ class Mailer {
             }
 
             $mime .= '--'.$this->boundary.MAILHEADER_EOL;
-            $mime .= 'Content-Type: '.$media['mime'].';'.MAILHEADER_EOL;
-            $mime .= 'Content-Transfer-Encoding: base64'.MAILHEADER_EOL;
-            $mime .= "Content-ID: <$cid>".MAILHEADER_EOL;
+            $mime .= $this->wrappedHeaderLine('Content-Type', $media['mime'].'; id="'.$cid.'"');
+            $mime .= $this->wrappedHeaderLine('Content-Transfer-Encoding', 'base64');
+            $mime .= $this->wrappedHeaderLine('Content-ID',"<$cid>");
             if($media['embed']) {
-                $mime .= 'Content-Disposition: inline; filename="'.$media['name'].'"'.MAILHEADER_EOL;
+                $mime .= $this->wrappedHeaderLine('Content-Disposition', 'inline; filename='.$media['name']);
             } else {
-                $mime .= 'Content-Disposition: attachment; filename="'.$media['name'].'"'.MAILHEADER_EOL;
+                $mime .= $this->wrappedHeaderLine('Content-Disposition', 'attachment; filename='.$media['name']);
             }
             $mime .= MAILHEADER_EOL; //end of headers
             $mime .= chunk_split(base64_encode($media['data']), 74, MAILHEADER_EOL);
@@ -469,7 +473,7 @@ class Mailer {
         if(!$this->html && !count($this->attach)) { // we can send a simple single part message
             $this->headers['Content-Type']              = 'text/plain; charset=UTF-8';
             $this->headers['Content-Transfer-Encoding'] = 'base64';
-            $body .= chunk_split(base64_encode($this->text), 74, MAILHEADER_EOL);
+            $body .= chunk_split(base64_encode($this->text), 72, MAILHEADER_EOL);
         } else { // multi part it is
             $body .= "This is a multi-part message in MIME format.".MAILHEADER_EOL;
 
@@ -484,10 +488,11 @@ class Mailer {
                 $body .= 'Content-Type: text/plain; charset=UTF-8'.MAILHEADER_EOL;
                 $body .= 'Content-Transfer-Encoding: base64'.MAILHEADER_EOL;
                 $body .= MAILHEADER_EOL;
-                $body .= chunk_split(base64_encode($this->text), 74, MAILHEADER_EOL);
+                $body .= chunk_split(base64_encode($this->text), 72, MAILHEADER_EOL);
                 $body .= '--'.$this->boundary.'XX'.MAILHEADER_EOL;
                 $body .= 'Content-Type: multipart/related;'.MAILHEADER_EOL.
-                    '  boundary="'.$this->boundary.'"'.MAILHEADER_EOL;
+                    '  boundary="'.$this->boundary.'";'.MAILHEADER_EOL.
+                    '  type="text/html"'.MAILHEADER_EOL;
                 $body .= MAILHEADER_EOL;
             }
 
@@ -495,7 +500,7 @@ class Mailer {
             $body .= 'Content-Type: text/html; charset=UTF-8'.MAILHEADER_EOL;
             $body .= 'Content-Transfer-Encoding: base64'.MAILHEADER_EOL;
             $body .= MAILHEADER_EOL;
-            $body .= chunk_split(base64_encode($this->html), 74, MAILHEADER_EOL);
+            $body .= chunk_split(base64_encode($this->html), 72, MAILHEADER_EOL);
             $body .= MAILHEADER_EOL;
             $body .= $attachments;
             $body .= '--'.$this->boundary.'--'.MAILHEADER_EOL;
@@ -550,10 +555,17 @@ class Mailer {
             }
         }
 
-        // wrap headers
-        foreach($this->headers as $key => $val) {
-            $this->headers[$key] = wordwrap($val, 78, MAILHEADER_EOL.'  ');
-        }
+    }
+
+    /**
+     * Returns a complete, EOL terminated header line, wraps it if necessary
+     *
+     * @param $key
+     * @param $val
+     * @return string
+     */
+    protected function wrappedHeaderLine($key, $val){
+        return wordwrap("$key: $val", 78, MAILHEADER_EOL.'  ').MAILHEADER_EOL;
     }
 
     /**
@@ -565,7 +577,7 @@ class Mailer {
         $headers = '';
         foreach($this->headers as $key => $val) {
             if ($val === '') continue;
-            $headers .= "$key: $val".MAILHEADER_EOL;
+            $headers .= $this->wrappedHeaderLine($key, $val);
         }
         return $headers;
     }