public function onCreateFileImageThumbnailSource(File $file, &$imgPath, $media = null)
{
// If we are on a private node, we won't do any remote calls (just as a precaution until
// we can configure this from config.php for the private nodes)
if (common_config('site', 'private')) {
return true;
}
if ($media !== 'image') {
return true;
}
// If there is a local filename, it is either a local file already or has already been downloaded.
if (!empty($file->filename)) {
return true;
}
$this->checkWhitelist($file->getUrl());
// First we download the file to memory and test whether it's actually an image file
$imgData = HTTPClient::quickGet($file->getUrl());
common_debug(sprintf('Downloading remote file id==%u with URL: %s', $file->id, $file->getUrl()));
$info = @getimagesizefromstring($imgData);
if ($info === false) {
throw new UnsupportedMediaException(_('Remote file format was not identified as an image.'), $file->getUrl());
} elseif (!$info[0] || !$info[1]) {
throw new UnsupportedMediaException(_('Image file had impossible geometry (0 width or height)'));
}
$filehash = hash(File::FILEHASH_ALG, $imgData);
try {
// Exception will be thrown before $file is set to anything, so old $file value will be kept
$file = File::getByHash($filehash);
//FIXME: Add some code so we don't have to store duplicate File rows for same hash files.
} catch (NoResultException $e) {
$filename = $filehash . '.' . common_supported_mime_to_ext($info['mime']);
$fullpath = File::path($filename);
// Write the file to disk if it doesn't exist yet. Throw Exception on failure.
if (!file_exists($fullpath) && file_put_contents($fullpath, $imgData) === false) {
throw new ServerException(_('Could not write downloaded file to disk.'));
}
// Updated our database for the file record
$orig = clone $file;
$file->filehash = $filehash;
$file->filename = $filename;
$file->width = $info[0];
// array indexes documented on php.net:
$file->height = $info[1];
// https://php.net/manual/en/function.getimagesize.php
// Throws exception on failure.
$file->updateWithKeys($orig, 'id');
}
// Get rid of the file from memory
unset($imgData);
$imgPath = $file->getPath();
return false;
}
/**
* Perform or fake an oEmbed lookup for the given resource.
*
* Some known hosts are whitelisted with API endpoints where we
* know they exist but autodiscovery data isn't available.
* If autodiscovery links are missing and we don't recognize the
* host, we'll pass it to noembed.com's public service which
* will either proxy or fake info on a lot of sites.
*
* A few hosts are blacklisted due to known problems with oohembed,
* in which case we'll look up the info another way and return
* equivalent data.
*
* Throws exceptions on failure.
*
* @param string $url
* @param array $params
* @return object
*/
public static function getObject($url, $params = array())
{
common_log(LOG_INFO, 'Checking for remote URL metadata for ' . $url);
// TODO: Make this class something like UrlMetadata, or use a dataobject?
$metadata = new stdClass();
if (Event::handle('GetRemoteUrlMetadata', array($url, &$metadata))) {
// If that event didn't return anything, try downloading the body and parse it
$body = HTTPClient::quickGet($url);
// DOMDocument::loadHTML may throw warnings on unrecognized elements,
// and notices on unrecognized namespaces.
$old = error_reporting(error_reporting() & ~(E_WARNING | E_NOTICE));
$dom = new DOMDocument();
$ok = $dom->loadHTML($body);
unset($body);
// storing the DOM in memory is enough...
error_reporting($old);
if (!$ok) {
throw new oEmbedHelper_BadHtmlException();
}
Event::handle('GetRemoteUrlMetadataFromDom', array($url, $dom, &$metadata));
}
return self::normalize($metadata);
}
/**
* Download and update given avatar image
*
* @param string $url
* @return Avatar The Avatar we have on disk. (seldom used)
* @throws Exception in various failure cases
*/
public function updateAvatar($url, $force = false)
{
try {
// If avatar URL differs: update. If URLs were identical but we're forced: update.
if ($url == $this->avatar && !$force) {
// If there's no locally stored avatar, throw an exception and continue fetching below.
$avatar = Avatar::getUploaded($this->localProfile()) instanceof Avatar;
return $avatar;
}
} catch (NoAvatarException $e) {
// No avatar available, let's fetch it.
}
if (!common_valid_http_url($url)) {
// TRANS: Server exception. %s is a URL.
throw new ServerException(sprintf(_m('Invalid avatar URL %s.'), $url));
}
$self = $this->localProfile();
// @todo FIXME: This should be better encapsulated
// ripped from oauthstore.php (for old OMB client)
$temp_filename = tempnam(sys_get_temp_dir(), 'listener_avatar');
try {
$imgData = HTTPClient::quickGet($url);
// Make sure it's at least an image file. ImageFile can do the rest.
if (false === getimagesizefromstring($imgData)) {
throw new UnsupportedMediaException(_('Downloaded group avatar was not an image.'));
}
file_put_contents($temp_filename, $imgData);
unset($imgData);
// No need to carry this in memory.
if ($this->isGroup()) {
$id = $this->group_id;
} else {
$id = $this->profile_id;
}
$imagefile = new ImageFile(null, $temp_filename);
$filename = Avatar::filename($id, image_type_to_extension($imagefile->type), null, common_timestamp());
rename($temp_filename, Avatar::path($filename));
} catch (Exception $e) {
unlink($temp_filename);
throw $e;
}
// @todo FIXME: Hardcoded chmod is lame, but seems to be necessary to
// keep from accidentally saving images from command-line (queues)
// that can't be read from web server, which causes hard-to-notice
// problems later on:
//
// http://status.net/open-source/issues/2663
chmod(Avatar::path($filename), 0644);
$self->setOriginal($filename);
$orig = clone $this;
$this->avatar = $url;
$this->update($orig);
return Avatar::getUploaded($self);
}
$validate = new Validate();
if (empty($args[0]) || !$validate->uri($args[0])) {
print "{$helptext}";
exit(1);
}
$feedurl = $args[0];
$skip = have_option('skip') ? intval(get_option_value('skip')) : 0;
$count = have_option('count') ? intval(get_option_value('count')) : 0;
$sub = FeedSub::getKV('uri', $feedurl);
if (!$sub) {
print "Feed {$feedurl} is not subscribed.\n";
exit(1);
}
// Fetch the URL
try {
$xml = HTTPClient::quickGet($feedurl, 'text/html,application/xhtml+xml');
} catch (Exception $e) {
echo sprintf("Could not fetch feedurl %s (%d).\n", $e->getMessage(), $e->getCode());
exit(1);
}
$feed = new DOMDocument();
if (!$feed->loadXML($xml)) {
print "Bad XML.\n";
exit(1);
}
if ($skip || $count) {
$entries = $feed->getElementsByTagNameNS(ActivityUtils::ATOM, 'entry');
$remove = array();
for ($i = 0; $i < $skip && $i < $entries->length; $i++) {
$item = $entries->item($i);
if ($item) {
protected function storeRemoteFileThumbnail(File_thumbnail $thumbnail)
{
if (!empty($thumbnail->filename) && file_exists($thumbnail->getPath())) {
throw new AlreadyFulfilledException(sprintf('A thumbnail seems to already exist for remote file with id==%u', $thumbnail->file_id));
}
$url = $thumbnail->getUrl();
$this->checkWhitelist($url);
// First we download the file to memory and test whether it's actually an image file
// FIXME: To support remote video/whatever files, this needs reworking.
common_debug(sprintf('Downloading remote thumbnail for file id==%u with thumbnail URL: %s', $thumbnail->file_id, $url));
$imgData = HTTPClient::quickGet($url);
$info = @getimagesizefromstring($imgData);
if ($info === false) {
throw new UnsupportedMediaException(_('Remote file format was not identified as an image.'), $url);
} elseif (!$info[0] || !$info[1]) {
throw new UnsupportedMediaException(_('Image file had impossible geometry (0 width or height)'));
}
// We'll trust sha256 not to have collision issues any time soon :)
$filename = hash('sha256', $imgData) . '.' . common_supported_mime_to_ext($info['mime']);
$fullpath = File_thumbnail::path($filename);
// Write the file to disk. Throw Exception on failure
if (!file_exists($fullpath) && file_put_contents($fullpath, $imgData) === false) {
throw new ServerException(_('Could not write downloaded file to disk.'));
}
// Get rid of the file from memory
unset($imgData);
// Updated our database for the file record
$orig = clone $thumbnail;
$thumbnail->filename = $filename;
$thumbnail->width = $info[0];
// array indexes documented on php.net:
$thumbnail->height = $info[1];
// https://php.net/manual/en/function.getimagesize.php
// Throws exception on failure.
$thumbnail->updateWithKeys($orig, 'file_id');
}
