- Fix quoting special characters, small optimizations

program/include/rcube_vcard.php

@@ -497,14 +497,16 @@ class rcube_vcard
    */
   private static function vcard_decode($vcard)
   {
-    // Perform RFC2425 line unfolding
+    // Perform RFC2425 line unfolding and split lines
     $vcard = preg_replace(array("/\r/", "/\n\s+/"), '', $vcard);
-    
-    $lines = preg_split('/\r?\n/', $vcard);
+    $lines = explode("\n", $vcard);
     $data  = array();
 
     for ($i=0; $i < count($lines); $i++) {
-      if (!preg_match('/^([^\\:]*):(.+)$/', $lines[$i], $line))
+      if (!preg_match('/^([^:]+):(.+)$/', $lines[$i], $line))
+        continue;
+
+      if (preg_match('/^(BEGIN|END)$/i', $line[1]))
         continue;
 
       // convert 2.1-style "EMAIL;internet;home:" to 3.0-style "EMAIL;TYPE=internet;TYPE=home:"
@@ -514,7 +516,7 @@ class rcube_vcard
           $line[1] .= ';' . (strpos($prop, '=') ? $prop : 'TYPE='.$prop);
       }
 
-      if (!preg_match('/^(BEGIN|END)$/i', $line[1]) && preg_match_all('/([^\\;]+);?/', $line[1], $regs2)) {
+      if (preg_match_all('/([^\\;]+);?/', $line[1], $regs2)) {
         $entry = array();
         $field = strtoupper($regs2[1][0]);
 
@@ -546,28 +548,6 @@ class rcube_vcard
   }
 
 
-  /**
-   * Split quoted string
-   *
-   * @param string vCard string to split
-   * @param string Separator char/string
-   * @return array List with splitted values
-   */
-  private static function vcard_unquote($s, $sep = ';')
-  {
-    // break string into parts separated by $sep, but leave escaped $sep alone
-    if (count($parts = explode($sep, strtr($s, array("\\$sep" => "\007")))) > 1) {
-      foreach($parts as $s) {
-        $result[] = self::vcard_unquote(strtr($s, array("\007" => "\\$sep")), $sep);
-      }
-      return $result;
-    }
-    else {
-      return strtr($s, array("\r" => '', '\\\\' => '\\', '\n' => "\n", '\,' => ',', '\;' => ';', '\:' => ':'));
-    }
-  }
-
-
   /**
    * Decode a given string with the encoding rule from ENCODING attributes
    *
@@ -648,7 +628,29 @@ class rcube_vcard
       return(implode($sep, (array)$r));
     }
     else {
-      return strtr($s, array('\\' => '\\\\', "\r" => '', "\n" => '\n', ';' => '\;', ':' => '\:'));
+      return strtr($s, array('\\' => '\\\\', "\r" => '', "\n" => '\n', ',' => '\,', ';' => '\;'));
+    }
+  }
+
+
+  /**
+   * Split quoted string
+   *
+   * @param string vCard string to split
+   * @param string Separator char/string
+   * @return array List with splitted values
+   */
+  private static function vcard_unquote($s, $sep = ';')
+  {
+    // break string into parts separated by $sep, but leave escaped $sep alone
+    if (count($parts = explode($sep, strtr($s, array("\\$sep" => "\007")))) > 1) {
+      foreach($parts as $s) {
+        $result[] = self::vcard_unquote(strtr($s, array("\007" => "\\$sep")), $sep);
+      }
+      return $result;
+    }
+    else {
+      return strtr($s, array("\r" => '', '\\\\' => '\\', '\n' => "\n", '\N' => "\n", '\,' => ',', '\;' => ';'));
     }
   }
 
@@ -700,5 +702,3 @@ class rcube_vcard
   }
 
 }
-
-