Contacts: Clear cache for contact photo and thumbnail when it has been changed.

apps/contacts/ajax/savecrop.php

@@ -94,6 +94,8 @@ if(file_exists($tmp_path)) {
 						OC_Log::write('contacts','savecrop.php: files: Adding PHOTO property.', OC_Log::DEBUG);
 						$card->addProperty('PHOTO', $image->__toString(), array('ENCODING' => 'b', 'TYPE' => $image->mimeType()));
 					}
+					$now = new DateTime;
+					$card->setString('REV', $now->format(DateTime::W3C));
 					if(!OC_Contacts_VCard::edit($id,$card)) {
 						bailOut('Error saving contact.');
 					}

apps/contacts/photo.php

@@ -19,7 +19,12 @@ function getStandardImage(){
 	OC_Response::redirect(OC_Helper::imagePath('contacts', 'person_large.png'));
 }
 
-$id = $_GET['id'];
+$id = isset($_GET['id']) ? $_GET['id'] : null;
+$caching = isset($_GET['refresh']) ? 0 : null;
+
+if(is_null($id)) {
+	getStandardImage();
+}
 
 $contact = OC_Contacts_App::getContactVCard($id);
 $image = new OC_Image();
@@ -30,7 +35,7 @@ if(!$image) {
 if( is_null($contact)) {
 	OC_Log::write('contacts','photo.php. The VCard for ID '.$id.' is not RFC compatible',OC_Log::ERROR);
 } else {
-	OC_Response::enableCaching();
+	OC_Response::enableCaching($caching);
 	OC_Contacts_App::setLastModifiedHeader($contact);
 
 	// Photo :-)

apps/contacts/thumbnail.php

@@ -39,6 +39,7 @@ if(!function_exists('imagecreatefromjpeg')) {
 }
 
 $id = $_GET['id'];
+$caching = isset($_GET['refresh']) ? 0 : null;
 
 $contact = OC_Contacts_App::getContactVCard($id);
 
@@ -48,7 +49,7 @@ if(is_null($contact)){
 	getStandardImage();
 	exit();
 }
-OC_Response::enableCaching();
+OC_Response::enableCaching($caching);
 OC_Contacts_App::setLastModifiedHeader($contact);
 
 $thumbnail_size = 23;