- /**
- * Returns a field array with locally cached avatar pictures
- *
- * @param array $contact
- * @param string $avatar
- * @return array
- */
- private static function fetchAvatarContact(array $contact, string $avatar): array
- {
- $fields = ['avatar' => $avatar, 'avatar-date' => DateTimeFormat::utcNow(), 'photo' => '', 'thumb' => '', 'micro' => ''];
-
- if (!DI::config()->get('system', 'avatar_cache')) {
- self::deleteAvatarCache($contact['photo']);
- self::deleteAvatarCache($contact['thumb']);
- self::deleteAvatarCache($contact['micro']);
- return $fields;
- }
-
- if (Network::isLocalLink($avatar)) {
- return $fields;
- }
-
- if ($avatar != $contact['avatar']) {
- self::deleteAvatarCache($contact['photo']);
- self::deleteAvatarCache($contact['thumb']);
- self::deleteAvatarCache($contact['micro']);
- } elseif (self::getAvatarFile($contact['photo']) && self::getAvatarFile($contact['thumb']) && self::getAvatarFile($contact['micro'])) {
- $fields['photo'] = $contact['photo'];
- $fields['thumb'] = $contact['thumb'];
- $fields['thumb'] = $contact['thumb'];
- return $fields;
- }
-
- $guid = Item::guidFromUri($contact['url'], parse_url($contact['url'], PHP_URL_HOST));
-
- $filename = substr($guid, 0, 2) . '/' . substr($guid, 3, 2) . '/' . substr($guid, 5, 3) . '/' .
- substr($guid, 9, 2) .'/' . substr($guid, 11, 2) . '/' . substr($guid, 13, 4). '/' . substr($guid, 18) . '-';
-
- $fetchResult = HTTPSignature::fetchRaw($avatar, 0, [HttpClientOptions::ACCEPT_CONTENT => [HttpClientAccept::IMAGE]]);
- $img_str = $fetchResult->getBody();
- if (empty($img_str)) {
- return $fields;
- }
-
- $image = new Image($img_str, Images::getMimeTypeByData($img_str));
- if (!$image->isValid()) {
- return $fields;
- }
-
- $fields['photo'] = self::storeAvatarCache($image, $filename, Proxy::PIXEL_SMALL);
- $fields['thumb'] = self::storeAvatarCache($image, $filename, Proxy::PIXEL_THUMB);
- $fields['micro'] = self::storeAvatarCache($image, $filename, Proxy::PIXEL_MICRO);
-
- Logger::debug('Storing avatar cache', ['uri-id' => $contact['uri-id'], 'fields' => $fields]);
-
- return $fields;
- }
-
- private static function storeAvatarCache(Image $image, string $filename, int $size): string
- {
- $image->scaleDown($size);
- if (is_null($image) || !$image->isValid()) {
- return '';
- }
-
- $path = '/avatar/' . $filename . $size . '.' . $image->getExt();
-
- $filepath = DI::basePath() . $path;
-
- $dirpath = dirname($filepath);
-
- DI::profiler()->startRecording('file');
-
- if (!file_exists($dirpath)) {
- mkdir($dirpath, 0777, true);
- }
-
- file_put_contents($filepath, $image->asString());
- DI::profiler()->stopRecording();
-
- return DI::baseUrl() . $path;
- }
-
- /**
- * Fetch the name of locally cached avatar pictures
- *
- * @param string $avatar
- * @return string
- */
- private static function getAvatarFile(string $avatar): string
- {
- if (empty($avatar) || !Network::isLocalLink($avatar)) {
- return '';
- }
-
- $path = Strings::normaliseLink(DI::baseUrl() . '/avatar');
-
- if (Network::getUrlMatch($path, $avatar) != $path) {
- return '';
- }
-
- $filename = str_replace($path, DI::basePath(). '/avatar/', Strings::normaliseLink($avatar));
-
- DI::profiler()->startRecording('file');
- $exists = file_exists($filename);
- DI::profiler()->stopRecording();
-
- if (!$exists) {
- return '';
- }
- return $filename;
- }
-
- /**
- * Delete a locally cached avatar picture
- *
- * @param string $avatar
- * @return void
- */
- public static function deleteAvatarCache(string $avatar)
- {
- $localFile = self::getAvatarFile($avatar);
- if (!empty($localFile)) {
- unlink($localFile);
- Logger::debug('Unlink avatar', ['avatar' => $avatar]);
- }
- }
-