3 * StatusNet - the distributed open-source microblogging tool
4 * Copyright (C) 2008, 2009, StatusNet, Inc.
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU Affero General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU Affero General Public License for more details.
16 * You should have received a copy of the GNU Affero General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 if (!defined('GNUSOCIAL')) { exit(1); }
23 * Table Definition for file
25 class File extends Managed_DataObject
27 public $__table = 'file'; // table name
28 public $id; // int(4) primary_key not_null
29 public $url; // varchar(255) unique_key
30 public $mimetype; // varchar(50)
31 public $size; // int(4)
32 public $title; // varchar(255)
33 public $date; // int(4)
34 public $protected; // int(4)
35 public $filename; // varchar(255)
36 public $modified; // timestamp() not_null default_CURRENT_TIMESTAMP
38 public static function schemaDef()
42 'id' => array('type' => 'serial', 'not null' => true),
43 'url' => array('type' => 'varchar', 'length' => 255, 'description' => 'destination URL after following redirections'),
44 'mimetype' => array('type' => 'varchar', 'length' => 50, 'description' => 'mime type of resource'),
45 'size' => array('type' => 'int', 'description' => 'size of resource when available'),
46 'title' => array('type' => 'varchar', 'length' => 255, 'description' => 'title of resource when available'),
47 'date' => array('type' => 'int', 'description' => 'date of resource according to http query'),
48 'protected' => array('type' => 'int', 'description' => 'true when URL is private (needs login)'),
49 'filename' => array('type' => 'varchar', 'length' => 255, 'description' => 'if a local file, name of the file'),
50 'width' => array('type' => 'int', 'description' => 'width in pixels, if it can be described as such and data is available'),
51 'height' => array('type' => 'int', 'description' => 'height in pixels, if it can be described as such and data is available'),
53 'modified' => array('type' => 'timestamp', 'not null' => true, 'description' => 'date this record was modified'),
55 'primary key' => array('id'),
56 'unique keys' => array(
57 'file_url_key' => array('url'),
62 function isProtected($url) {
63 return 'http://www.facebook.com/login.php' === $url;
67 * Save a new file record.
69 * @param array $redir_data lookup data eg from File_redirection::where()
70 * @param string $given_url
73 public static function saveNew(array $redir_data, $given_url) {
75 // I don't know why we have to keep doing this but I'm adding this last check to avoid
78 $file = File::getKV('url', $given_url);
80 if (!$file instanceof File) {
82 $file->url = $given_url;
83 if (!empty($redir_data['protected'])) $file->protected = $redir_data['protected'];
84 if (!empty($redir_data['title'])) $file->title = $redir_data['title'];
85 if (!empty($redir_data['type'])) $file->mimetype = $redir_data['type'];
86 if (!empty($redir_data['size'])) $file->size = intval($redir_data['size']);
87 if (isset($redir_data['time']) && $redir_data['time'] > 0) $file->date = intval($redir_data['time']);
88 $file_id = $file->insert();
91 Event::handle('EndFileSaveNew', array($file, $redir_data, $given_url));
96 * Go look at a URL and possibly save data about it if it's new:
97 * - follow redirect chains and store them in file_redirection
98 * - if a thumbnail is available, save it in file_thumbnail
99 * - save file record with basic info
100 * - optionally save a file_to_post record
101 * - return the File object with the full reference
103 * @fixme refactor this mess, it's gotten pretty scary.
104 * @param string $given_url the URL we're looking at
105 * @param int $notice_id (optional)
106 * @param bool $followRedirects defaults to true
108 * @return mixed File on success, -1 on some errors
110 * @throws ServerException on some errors
112 public function processNew($given_url, $notice_id=null, $followRedirects=true) {
113 if (empty($given_url)) return -1; // error, no url to process
114 $given_url = File_redirection::_canonUrl($given_url);
115 if (empty($given_url)) return -1; // error, no url to process
116 $file = File::getKV('url', $given_url);
118 $file_redir = File_redirection::getKV('url', $given_url);
119 if (empty($file_redir)) {
120 // @fixme for new URLs this also looks up non-redirect data
121 // such as target content type, size, etc, which we need
122 // for File::saveNew(); so we call it even if not following
124 $redir_data = File_redirection::where($given_url);
125 if (is_array($redir_data)) {
126 $redir_url = $redir_data['url'];
127 } elseif (is_string($redir_data)) {
128 $redir_url = $redir_data;
129 $redir_data = array();
131 // TRANS: Server exception thrown when a URL cannot be processed.
132 throw new ServerException(sprintf(_("Cannot process URL '%s'"), $given_url));
134 // TODO: max field length
135 if ($redir_url === $given_url || strlen($redir_url) > 255 || !$followRedirects) {
136 $x = File::saveNew($redir_data, $given_url);
139 // This seems kind of messed up... for now skipping this part
140 // if we're already under a redirect, so we don't go into
141 // horrible infinite loops if we've been given an unstable
142 // redirect (where the final destination of the first request
143 // doesn't match what we get when we ask for it again).
145 // Seen in the wild with clojure.org, which redirects through
146 // wikispaces for auth and appends session data in the URL params.
147 $x = File::processNew($redir_url, $notice_id, /*followRedirects*/false);
149 File_redirection::saveNew($redir_data, $file_id, $given_url);
152 $file_id = $file_redir->file_id;
155 $file_id = $file->id;
160 $x = File::getKV('id', $file_id);
162 // @todo FIXME: This could possibly be a clearer message :)
163 // TRANS: Server exception thrown when... Robin thinks something is impossible!
164 throw new ServerException(_('Robin thinks something is impossible.'));
168 if (!empty($notice_id)) {
169 File_to_post::processNew($file_id, $notice_id);
174 public static function respectsQuota(Profile $scoped, $fileSize) {
175 if ($fileSize > common_config('attachments', 'file_quota')) {
176 // TRANS: Message used to be inserted as %2$s in the text "No file may
177 // TRANS: be larger than %1$d byte and the file you sent was %2$s.".
178 // TRANS: %1$d is the number of bytes of an uploaded file.
179 $fileSizeText = sprintf(_m('%1$d byte','%1$d bytes',$fileSize),$fileSize);
181 $fileQuota = common_config('attachments', 'file_quota');
182 // TRANS: Message given if an upload is larger than the configured maximum.
183 // TRANS: %1$d (used for plural) is the byte limit for uploads,
184 // TRANS: %2$s is the proper form of "n bytes". This is the only ways to have
185 // TRANS: gettext support multiple plurals in the same message, unfortunately...
186 throw new ClientException(
187 sprintf(_m('No file may be larger than %1$d byte and the file you sent was %2$s. Try to upload a smaller version.',
188 'No file may be larger than %1$d bytes and the file you sent was %2$s. Try to upload a smaller version.',
190 $fileQuota, $fileSizeText));
195 $query = "select sum(size) as total from file join file_to_post on file_to_post.file_id = file.id join notice on file_to_post.post_id = notice.id where profile_id = {$scoped->id} and file.url like '%/notice/%/file'";
196 $file->query($query);
198 $total = $file->total + $fileSize;
199 if ($total > common_config('attachments', 'user_quota')) {
200 // TRANS: Message given if an upload would exceed user quota.
201 // TRANS: %d (number) is the user quota in bytes and is used for plural.
202 throw new ClientException(
203 sprintf(_m('A file this large would exceed your user quota of %d byte.',
204 'A file this large would exceed your user quota of %d bytes.',
205 common_config('attachments', 'user_quota')),
206 common_config('attachments', 'user_quota')));
208 $query .= ' AND EXTRACT(month FROM file.modified) = EXTRACT(month FROM now()) and EXTRACT(year FROM file.modified) = EXTRACT(year FROM now())';
209 $file->query($query);
211 $total = $file->total + $fileSize;
212 if ($total > common_config('attachments', 'monthly_quota')) {
213 // TRANS: Message given id an upload would exceed a user's monthly quota.
214 // TRANS: $d (number) is the monthly user quota in bytes and is used for plural.
215 throw new ClientException(
216 sprintf(_m('A file this large would exceed your monthly quota of %d byte.',
217 'A file this large would exceed your monthly quota of %d bytes.',
218 common_config('attachments', 'monthly_quota')),
219 common_config('attachments', 'monthly_quota')));
224 // where should the file go?
226 static function filename(Profile $profile, $origname, $mimetype)
229 $ext = common_supported_mime_to_ext($mimetype);
230 } catch (Exception $e) {
231 // We don't support this mimetype, but let's guess the extension
232 $ext = substr(strrchr($mimetype, '/'), 1);
235 // Normalize and make the original filename more URL friendly.
236 $origname = basename($origname);
237 if (class_exists('Normalizer')) {
238 // http://php.net/manual/en/class.normalizer.php
239 // http://www.unicode.org/reports/tr15/
240 $origname = Normalizer::normalize($origname, Normalizer::FORM_KC);
242 $origname = preg_replace('/[^A-Za-z0-9\.\_]/', '_', $origname);
244 $nickname = $profile->nickname;
245 $datestamp = strftime('%Y%m%d', time());
247 // generate new random strings until we don't run into a filename collision.
248 $random = strtolower(common_confirmation_code(16));
249 $filename = "$nickname-$datestamp-$origname-$random.$ext";
250 } while (file_exists(self::path($filename)));
255 * Validation for as-saved base filenames
257 static function validFilename($filename)
259 return preg_match('/^[A-Za-z0-9._-]+$/', $filename);
263 * @throws ClientException on invalid filename
265 static function path($filename)
267 if (!self::validFilename($filename)) {
268 // TRANS: Client exception thrown if a file upload does not have a valid name.
269 throw new ClientException(_("Invalid filename."));
271 $dir = common_config('attachments', 'dir');
273 if ($dir[strlen($dir)-1] != '/') {
277 return $dir . $filename;
280 static function url($filename)
282 if (!self::validFilename($filename)) {
283 // TRANS: Client exception thrown if a file upload does not have a valid name.
284 throw new ClientException(_("Invalid filename."));
287 if (common_config('site','private')) {
289 return common_local_url('getfile',
290 array('filename' => $filename));
294 if (StatusNet::isHTTPS()) {
296 $sslserver = common_config('attachments', 'sslserver');
298 if (empty($sslserver)) {
299 // XXX: this assumes that background dir == site dir + /file/
300 // not true if there's another server
301 if (is_string(common_config('site', 'sslserver')) &&
302 mb_strlen(common_config('site', 'sslserver')) > 0) {
303 $server = common_config('site', 'sslserver');
304 } else if (common_config('site', 'server')) {
305 $server = common_config('site', 'server');
307 $path = common_config('site', 'path') . '/file/';
309 $server = $sslserver;
310 $path = common_config('attachments', 'sslpath');
312 $path = common_config('attachments', 'path');
318 $path = common_config('attachments', 'path');
319 $server = common_config('attachments', 'server');
321 if (empty($server)) {
322 $server = common_config('site', 'server');
325 $ssl = common_config('attachments', 'ssl');
327 $protocol = ($ssl) ? 'https' : 'http';
330 if ($path[strlen($path)-1] != '/') {
334 if ($path[0] != '/') {
338 return $protocol.'://'.$server.$path.$filename;
341 function getEnclosure(){
342 $enclosure = (object) array();
343 $enclosure->title=$this->title;
344 $enclosure->url=$this->url;
345 $enclosure->title=$this->title;
346 $enclosure->date=$this->date;
347 $enclosure->modified=$this->modified;
348 $enclosure->size=$this->size;
349 $enclosure->mimetype=$this->mimetype;
351 if (!isset($this->filename)) {
352 $notEnclosureMimeTypes = array(null,'text/html','application/xhtml+xml');
353 $mimetype = $this->mimetype;
354 if($mimetype != null){
355 $mimetype = strtolower($this->mimetype);
357 $semicolon = strpos($mimetype,';');
359 $mimetype = substr($mimetype,0,$semicolon);
361 if (in_array($mimetype, $notEnclosureMimeTypes)) {
362 Event::handle('FileEnclosureMetadata', array($file, &$enclosure));
368 // quick back-compat hack, since there's still code using this
369 function isEnclosure()
371 $enclosure = $this->getEnclosure();
372 return !empty($enclosure);
376 * Get the attachment's thumbnail record, if any.
377 * Make sure you supply proper 'int' typed variables (or null).
379 * @param $width int Max width of thumbnail in pixels. (if null, use common_config values)
380 * @param $height int Max height of thumbnail in pixels. (if null, square-crop to $width)
381 * @param $crop bool Crop to the max-values' aspect ratio
383 * @return File_thumbnail
385 public function getThumbnail($width=null, $height=null, $crop=false)
387 if (intval($this->width) < 1 || intval($this->height) < 1) {
388 // Old files may have 0 until migrated with scripts/upgrade.php
389 // For any legitimately unrepresentable ones, we could generate our
390 // own image (like a square with MIME type in text)
391 throw new UnsupportedMediaException('No image geometry available.');
394 if ($width === null) {
395 $width = common_config('thumbnail', 'width');
396 $height = common_config('thumbnail', 'height');
397 $crop = common_config('thumbnail', 'crop');
400 if ($height === null) {
405 // Get proper aspect ratio width and height before lookup
406 list($width, $height, $x, $y, $w2, $h2) =
407 ImageFile::getScalingValues($this->width, $this->height, $width, $height, $crop);
409 // Doublecheck that parameters are sane and integers.
410 if ($width < 1 || $width > common_config('thumbnail', 'maxsize')
411 || $height < 1 || $height > common_config('thumbnail', 'maxsize')) {
412 // Fail on bad width parameter. If this occurs, it's due to algorithm in ImageFile::getScalingValues
413 throw new ServerException('Bad thumbnail size parameters.');
416 $params = array('file_id'=> $this->id,
418 'height' => $height);
419 $thumb = File_thumbnail::pkeyGet($params);
420 if ($thumb === null) {
421 // throws exception on failure to generate thumbnail
422 $thumb = $this->generateThumbnail($width, $height, $crop);
428 * Generate and store a thumbnail image for the uploaded file, if applicable.
429 * Call this only if you know what you're doing.
431 * @param $width int Maximum thumbnail width in pixels
432 * @param $height int Maximum thumbnail height in pixels, if null, crop to $width
434 * @return File_thumbnail or null
436 protected function generateThumbnail($width, $height, $crop)
438 $width = intval($width);
439 if ($height === null) {
444 $image = ImageFile::fromFileObject($this);
446 list($width, $height, $x, $y, $w2, $h2) =
447 $image->scaleToFit($width, $height, $crop);
449 $outname = "thumb-{$width}x{$height}-" . $this->filename;
450 $outpath = self::path($outname);
452 $image->resizeTo($outpath, $width, $height, $x, $y, $w2, $h2);
454 // Avoid deleting the original
455 if ($image->getPath() != $this->getPath()) {
458 return File_thumbnail::saveThumbnail($this->id,
463 public function getPath()
465 return self::path($this->filename);
467 public function getUrl()
473 * Blow the cache of notices that link to this URL
475 * @param boolean $last Whether to blow the "last" cache too
480 function blowCache($last=false)
482 self::blow('file:notice-ids:%s', $this->url);
484 self::blow('file:notice-ids:%s;last', $this->url);
486 self::blow('file:notice-count:%d', $this->id);
490 * Stream of notices linking to this URL
492 * @param integer $offset Offset to show; default is 0
493 * @param integer $limit Limit of notices to show
494 * @param integer $since_id Since this notice
495 * @param integer $max_id Before this notice
497 * @return array ids of notices that link to this file
500 function stream($offset=0, $limit=NOTICES_PER_PAGE, $since_id=0, $max_id=0)
502 $stream = new FileNoticeStream($this);
503 return $stream->getNotices($offset, $limit, $since_id, $max_id);
506 function noticeCount()
508 $cacheKey = sprintf('file:notice-count:%d', $this->id);
510 $count = self::cacheGet($cacheKey);
512 if ($count === false) {
514 $f2p = new File_to_post();
516 $f2p->file_id = $this->id;
518 $count = $f2p->count();
520 self::cacheSet($cacheKey, $count);