Another take at profile photo/thumbnail caching. oc-839.

apps/contacts/ajax/contact/add.php

@@ -49,4 +49,10 @@ if(!$id) {
 	exit();
 }
 
-OCP\JSON::success(array('data' => array( 'id' => $id, 'aid' => $aid )));
+OCP\JSON::success(array(
+	'data' => array(
+		'id' => $id,
+		'aid' => $aid,
+		'lastmodified' => OC_Contacts_VCard::lastModified($vcard)->format('U')
+	)
+));

apps/contacts/ajax/contact/addproperty.php

@@ -144,4 +144,9 @@ if(!OC_Contacts_VCard::edit($id, $vcard)) {
 	bailOut($l10n->t('Error adding contact property: '.$name));
 }
 
-OCP\JSON::success(array('data' => array( 'checksum' => $checksum )));
+OCP\JSON::success(array(
+	'data' => array(
+		'checksum' => $checksum,
+		'lastmodified' => OC_Contacts_VCard::lastModified($vcard)->format('U'))
+	)
+);

apps/contacts/ajax/contact/deleteproperty.php

@@ -44,4 +44,9 @@ if(!OC_Contacts_VCard::edit($id, $vcard)) {
 	bailOut($l10n->t('Error deleting contact property.'));
 }
 
-OCP\JSON::success(array('data' => array( 'id' => $id )));
+OCP\JSON::success(array(
+	'data' => array(
+		'id' => $id,
+		'lastmodified' => OC_Contacts_VCard::lastModified($vcard)->format('U'),
+	)
+));

apps/contacts/ajax/contact/details.php

@@ -53,5 +53,6 @@ if(isset($details['PHOTO'])) {
 $details['id'] = $id;
 $details['displayname'] = $card['fullname'];
 $details['addressbookid'] = $card['addressbookid'];
+$details['lastmodified'] = OC_Contacts_App::lastModified($vcard)->format('U');
 OC_Contacts_App::setLastModifiedHeader($vcard);
 OCP\JSON::success(array('data' => $details));

apps/contacts/ajax/contact/saveproperty.php

@@ -148,5 +148,6 @@ if(!OC_Contacts_VCard::edit($id, $vcard)) {
 OCP\JSON::success(array('data' => array(
 	'line' => $line,
 	'checksum' => $checksum,
-	'oldchecksum' => $_POST['checksum']))
+	'oldchecksum' => $_POST['checksum']
-);
+	'lastmodified' => OC_Contacts_VCard::lastModified($vcard)->format('U')
+));

apps/contacts/ajax/savecrop.php

@@ -62,17 +62,17 @@ if($data) {
 		if($image->crop($x1, $y1, $w, $h)) {
 			if(($image->width() <= 200 && $image->height() <= 200)
 						|| $image->resize(200)) {
-				$card = OC_Contacts_App::getContactVCard($id);
+				$vcard = OC_Contacts_App::getContactVCard($id);
-				if(!$card) {
+				if(!$vcard) {
 					OC_Cache::remove($tmpkey);
 					bailOut(OC_Contacts_App::$l10n
 						->t('Error getting contact object.'));
 				}
-				if($card->__isset('PHOTO')) {
+				if($vcard->__isset('PHOTO')) {
 					OCP\Util::writeLog('contacts',
 						'savecrop.php: PHOTO property exists.',
 						OCP\Util::DEBUG);
-					$property = $card->__get('PHOTO');
+					$property = $vcard->__get('PHOTO');
 					if(!$property) {
 						OC_Cache::remove($tmpkey);
 						bailOut(OC_Contacts_App::$l10n
@@ -83,27 +83,28 @@ if($data) {
 						= new Sabre_VObject_Parameter('ENCODING', 'b');
 					$property->parameters[]
 						= new Sabre_VObject_Parameter('TYPE', $image->mimeType());
-					$card->__set('PHOTO', $property);
+					$vcard->__set('PHOTO', $property);
 				} else {
 					OCP\Util::writeLog('contacts',
 						'savecrop.php: files: Adding PHOTO property.',
 						OCP\Util::DEBUG);
-					$card->addProperty('PHOTO',
+					$vcard->addProperty('PHOTO',
 						$image->__toString(), array('ENCODING' => 'b',
 						'TYPE' => $image->mimeType()));
 				}
 				$now = new DateTime;
-				$card->setString('REV', $now->format(DateTime::W3C));
+				$vcard->setString('REV', $now->format(DateTime::W3C));
-				if(!OC_Contacts_VCard::edit($id, $card)) {
+				if(!OC_Contacts_VCard::edit($id, $vcard)) {
 					bailOut(OC_Contacts_App::$l10n->t('Error saving contact.'));
 				}
-				$tmpl = new OCP\Template("contacts", "part.contactphoto");
+				OCP\JSON::success(array(
-				$tmpl->assign('id', $id);
+					'data' => array(
-				$tmpl->assign('refresh', true);
+						'id' => $id,
-				$tmpl->assign('width', $image->width());
+						'width' => $image->width(),
-				$tmpl->assign('height', $image->height());
+						'height' => $image->height(),
-				$page = $tmpl->fetchPage();
+						'lastmodified' => OC_Contacts_App::lastModified($vcard)->format('U')
-				OCP\JSON::success(array('data' => array('page'=>$page)));
+					)
+				));
 			} else {
 				bailOut(OC_Contacts_App::$l10n->t('Error resizing image'));
 			}

apps/contacts/js/contacts.js

@@ -835,7 +835,7 @@ OC.Contacts={
 								OC.Contacts.propertyContainerFor(obj).data('checksum', '');
 								if(proptype == 'PHOTO') {
 									OC.Contacts.Contacts.refreshThumbnail(OC.Contacts.Card.id);
-									OC.Contacts.Card.loadPhoto(true);
+									OC.Contacts.Card.loadPhoto();
 								} else if(proptype == 'NOTE') {
 									$('#note').find('textarea').val('');
 									OC.Contacts.propertyContainerFor(obj).hide();
@@ -1218,9 +1218,9 @@ OC.Contacts={
 				}
 			});
 		},
-		loadPhoto:function(refresh){
+		loadPhoto:function(){
 			var self = this;
-			var refreshstr = (refresh?'&refresh=1'+Math.random():'')
+			var refreshstr = ''; //'&refresh='+Math.random();
 			$('#phototools li a').tipsy('hide');
 			var wrapper = $('#contacts_details_photo_wrapper');
 			wrapper.addClass('loading').addClass('wait');
@@ -1278,7 +1278,7 @@ OC.Contacts={
 				var response=jQuery.parseJSON(target.contents().text());
 				if(response != undefined && response.status == 'success'){
 					// load cropped photo.
-					self.loadPhoto(true);
+					self.loadPhoto();
 					OC.Contacts.Card.data.PHOTO = true;
 				}else{
 					OC.dialogs.alert(response.data.message, t('contacts', 'Error'));

apps/contacts/lib/app.php

@@ -240,6 +240,18 @@ class OC_Contacts_App {
 		self::getVCategories()->loadFromVObject($contact, true);
 	}
 
+	/**
+	 * @brief Get the last modification time.
+	 * @param $vcard OC_VObject
+	 * $return DateTime | null
+	 */
+	public static function lastModified($vcard) {
+		$rev = $vcard->getAsString('REV');
+		if ($rev) {
+			return DateTime::createFromFormat(DateTime::W3C, $rev);
+		}
+	}
+
 	public static function setLastModifiedHeader($contact) {
 		$rev = $contact->getAsString('REV');
 		if ($rev) {

apps/contacts/photo.php

@@ -20,7 +20,8 @@ function getStandardImage() {
 }
 
 $id = isset($_GET['id']) ? $_GET['id'] : null;
-$caching = isset($_GET['refresh']) ? 0 : null;
+$etag = null;
+$caching = null;
 
 if(is_null($id)) {
 	getStandardImage();
@@ -43,21 +44,30 @@ if (is_null($contact)) {
 		'photo.php. The VCard for ID ' . $id . ' is not RFC compatible',
 		OCP\Util::ERROR);
 } else {
-	OCP\Response::enableCaching($caching);
-	OC_Contacts_App::setLastModifiedHeader($contact);
-
 	// Photo :-)
 	if ($image->loadFromBase64($contact->getAsString('PHOTO'))) {
 		// OK
-		OCP\Response::setETagHeader(md5($contact->getAsString('PHOTO')));
+		$etag = md5($contact->getAsString('PHOTO'));
 	}
 	else
 	// Logo :-/
 	if ($image->loadFromBase64($contact->getAsString('LOGO'))) {
 		// OK
-		OCP\Response::setETagHeader(md5($contact->getAsString('LOGO')));
+		$etag = md5($contact->getAsString('LOGO'));
 	}
 	if ($image->valid()) {
+		$modified = OC_Contacts_App::lastModified($contact);
+		// Force refresh if modified within the last minute.
+		if(!is_null($modified)) {
+			$caching = (time() - $modified->format('U') > 60) ? null : 0;
+		}
+		OCP\Response::enableCaching($caching);
+		if(!is_null($modified)) {
+			OCP\Response::setLastModifiedHeader($modified);
+		}
+		if($etag) {
+			OCP\Response::setETagHeader($etag);
+		}
 		$max_size = 200;
 		if ($image->width() > $max_size || $image->height() > $max_size) {
 			$image->resize($max_size);

apps/contacts/thumbnail.php

@@ -26,7 +26,6 @@ OCP\App::checkAppEnabled('contacts');
 session_write_close();
 
 function getStandardImage() {
-	//OCP\Response::setExpiresHeader('P10D');
 	OCP\Response::enableCaching();
 	OCP\Response::redirect(OCP\Util::imagePath('contacts', 'person.png'));
 }
@@ -39,7 +38,7 @@ if(!extension_loaded('gd') || !function_exists('gd_info')) {
 }
 
 $id = $_GET['id'];
-$caching = isset($_GET['refresh']) ? 0 : null;
+$caching = null;
 
 $contact = OC_Contacts_App::getContactVCard($id);
 
@@ -60,10 +59,19 @@ $thumbnail_size = 23;
 $image = new OC_Image();
 $photo = $contact->getAsString('PHOTO');
 if($photo) {
-	OCP\Response::setETagHeader(md5($photo));
 	if($image->loadFromBase64($photo)) {
 		if($image->centerCrop()) {
 			if($image->resize($thumbnail_size)) {
+				$modified = OC_Contacts_App::lastModified($contact);
+				// Force refresh if modified within the last minute.
+				if(!is_null($modified)) {
+					$caching = (time() - $modified->format('U') > 60) ? null : 0;
+				}
+				OCP\Response::enableCaching($caching);
+				if(!is_null($modified)) {
+					OCP\Response::setLastModifiedHeader($modified);
+				}
+				OCP\Response::setETagHeader(md5($photo));
 				if($image->show()) {
 					exit();
 				} else {