/**
* Detects URLs in the text and converts them into shortcodes indicating either regular links or images.
*
* @param string $text HTML-encoded string
* @param boolean $detectAndDownloadImages Whether to check and download images
* @param boolean $detectYouTubeVideos
*
* @return string
*/
public function filter($text, $detectAndDownloadImages, $detectYouTubeVideos = false)
{
$this->replacementOffset = 0;
$this->createdAttachments = array();
if (preg_match_all(self::URL_REGEXP, $text, $matches)) {
if (count($matches) == 0) {
return $text;
}
foreach ($matches[0] as $detectedURL) {
$shortCode = null;
$regularLink = false;
$ytMatches = array();
if ($detectAndDownloadImages && preg_match(self::URL_IMAGE_REGEXP, $detectedURL)) {
$imageUrl = $detectedURL;
if (!preg_match(self::URL_PROTOCOLS_REGEXP, $detectedURL)) {
$imageUrl = "http://" . $detectedURL;
}
try {
$result = $this->imagesService->downloadImage($imageUrl);
$this->createdAttachments[] = $result['id'];
$shortCode = WiseChatShortcodeConstructor::getImageShortcode($result['id'], $result['image'], $result['image-th'], $detectedURL);
} catch (Exception $ex) {
$regularLink = true;
$actions = WiseChatContainer::get('services/user/WiseChatActions');
$authentication = WiseChatContainer::get('services/user/WiseChatAuthentication');
$actions->publishAction('showErrorMessage', array('message' => $ex->getMessage()), $authentication->getUser());
}
} elseif ($detectYouTubeVideos && preg_match(self::URL_YOUTUBE_REGEXP, $detectedURL, $ytMatches)) {
$movieId = array_pop($ytMatches);
$shortCode = WiseChatShortcodeConstructor::getYouTubeShortcode($movieId, $detectedURL);
} elseif ($detectYouTubeVideos && preg_match(self::URL_YOUTUBE_REGEXP_2, $detectedURL, $ytMatches)) {
$movieId = array_pop($ytMatches);
$shortCode = WiseChatShortcodeConstructor::getYouTubeShortcode($movieId, $detectedURL);
} else {
$regularLink = true;
}
if ($regularLink) {
$shortCode = sprintf('[link src="%s"]', $detectedURL);
}
if ($shortCode !== null) {
$text = $this->strReplaceFirst($detectedURL, $shortCode, $text);
}
}
}
return $text;
}
/**
* Saves attachments in the Media Library and attaches them to the end of the message.
*
* @param WiseChatChannel $channel
* @param array $attachments Array of attachments
*
* @return array Array consisting of the two elements: a shortcode representing the attachments and array of IDs of created attachments
*/
private function saveAttachments($channel, $attachments)
{
if (!is_array($attachments) || count($attachments) === 0) {
return array(null, array());
}
WiseChatContainer::load('rendering/filters/WiseChatShortcodeConstructor');
$firstAttachment = $attachments[0];
$data = $firstAttachment['data'];
$data = substr($data, strpos($data, ",") + 1);
$decodedData = base64_decode($data);
$attachmentShortcode = null;
$attachmentIds = array();
if ($this->options->isOptionEnabled('enable_images_uploader') && $firstAttachment['type'] === 'image') {
$image = $this->imagesService->saveImage($decodedData);
if (is_array($image)) {
$attachmentShortcode = ' ' . WiseChatShortcodeConstructor::getImageShortcode($image['id'], $image['image'], $image['image-th'], '_');
$attachmentIds = array($image['id']);
}
}
if ($this->options->isOptionEnabled('enable_attachments_uploader') && $firstAttachment['type'] === 'file') {
$fileName = $firstAttachment['name'];
$file = $this->attachmentsService->saveAttachment($fileName, $decodedData, $channel->getName());
if (is_array($file)) {
$attachmentShortcode = ' ' . WiseChatShortcodeConstructor::getAttachmentShortcode($file['id'], $file['file'], $fileName);
$attachmentIds = array($file['id']);
}
}
return array($attachmentShortcode, $attachmentIds);
}
