diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/mediafile.php | 281 |
1 files changed, 281 insertions, 0 deletions
diff --git a/lib/mediafile.php b/lib/mediafile.php new file mode 100644 index 000000000..40f37ba61 --- /dev/null +++ b/lib/mediafile.php @@ -0,0 +1,281 @@ +<?php +/** + * StatusNet, the distributed open-source mMediaFileicroblogging tool + * + * Abstraction for a media files in general + * + * PHP version 5 + * + * LICENCE: This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + * @category Media + * @package StatusNet + * @author Zach Copley <zach@status.net> + * @copyright 2008-2009 StatusNet, Inc. + * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0 + * @link http://status.net/ + */ + +if (!defined('STATUSNET') && !defined('LACONICA')) { + exit(1); +} + +class MediaFile +{ + + var $filename = null; + var $fileRecord = null; + var $user = null; + var $fileurl = null; + var $short_fileurl = null; + var $mimetype = null; + + function __construct($user = null, $filename = null, $mimetype = null) + { + if ($user == null) { + $this->user = common_current_user(); + } + + $this->filename = $filename; + $this->mimetype = $mimetype; + $this->fileRecord = $this->storeFile(); + + $this->fileurl = common_local_url('attachment', + array('attachment' => $this->fileRecord->id)); + + $this->maybeAddRedir($this->fileRecord->id, $this->fileurl); + $this->short_fileurl = common_shorten_url($this->fileurl); + $this->maybeAddRedir($this->fileRecord->id, $this->short_fileurl); + } + + function attachToNotice($notice) + { + File_to_post::processNew($this->fileRecord->id, $notice->id); + $this->maybeAddRedir($this->fileRecord->id, + common_local_url('file', array('notice' => $notice->id))); + } + + function shortUrl() + { + return $this->short_fileurl; + } + + function delete() + { + $filepath = File::path($this->filename); + @unlink($filepath); + } + + function storeFile() { + + $file = new File; + + $file->filename = $this->filename; + $file->url = File::url($this->filename); + $filepath = File::path($this->filename); + $file->size = filesize($filepath); + $file->date = time(); + $file->mimetype = $this->mimetype; + + $file_id = $file->insert(); + + if (!$file_id) { + common_log_db_error($file, "INSERT", __FILE__); + throw new ClientException(_('There was a database error while saving your file. Please try again.')); + } + + return $file; + } + + function rememberFile($file, $short) + { + $this->maybeAddRedir($file->id, $short); + } + + function maybeAddRedir($file_id, $url) + { + $file_redir = File_redirection::staticGet('url', $url); + + if (empty($file_redir)) { + + $file_redir = new File_redirection; + $file_redir->url = $url; + $file_redir->file_id = $file_id; + + $result = $file_redir->insert(); + + if (!$result) { + common_log_db_error($file_redir, "INSERT", __FILE__); + throw new ClientException(_('There was a database error while saving your file. Please try again.')); + } + } + } + + static function fromUpload($param = 'media', $user = null) + { + if (empty($user)) { + $user = common_current_user(); + } + + if (!isset($_FILES[$param]['error'])){ + return; + } + + switch ($_FILES[$param]['error']) { + case UPLOAD_ERR_OK: // success, jump out + break; + case UPLOAD_ERR_INI_SIZE: + throw new ClientException(_('The uploaded file exceeds the ' . + 'upload_max_filesize directive in php.ini.')); + return; + case UPLOAD_ERR_FORM_SIZE: + throw new ClientException( + _('The uploaded file exceeds the MAX_FILE_SIZE directive' . + ' that was specified in the HTML form.')); + return; + case UPLOAD_ERR_PARTIAL: + @unlink($_FILES[$param]['tmp_name']); + throw new ClientException(_('The uploaded file was only' . + ' partially uploaded.')); + return; + case UPLOAD_ERR_NO_TMP_DIR: + throw new ClientException(_('Missing a temporary folder.')); + return; + case UPLOAD_ERR_CANT_WRITE: + throw new ClientException(_('Failed to write file to disk.')); + return; + case UPLOAD_ERR_EXTENSION: + throw new ClientException(_('File upload stopped by extension.')); + return; + default: + throw new ClientException(_('System error uploading file.')); + return; + } + + if (!MediaFile::respectsQuota($user, $_FILES['attach']['size'])) { + + // Should never actually get here + + @unlink($_FILES[$param]['tmp_name']); + throw new ClientException(_('File exceeds user\'s quota!')); + return; + } + + $mimetype = MediaFile::getUploadedFileType($_FILES[$param]['tmp_name']); + + $filename = null; + + if (isset($mimetype)) { + + $basename = basename($_FILES[$param]['name']); + $filename = File::filename($user->getProfile(), $basename, $mimetype); + $filepath = File::path($filename); + + $result = move_uploaded_file($_FILES[$param]['tmp_name'], $filepath); + + if (!$result) { + throw new ClientException(_('File could not be moved to destination directory.')); + return; + } + + } else { + throw new ClientException(_('Could not determine file\'s mime-type!')); + return; + } + + return new MediaFile($user, $filename, $mimetype); + } + + static function fromFilehandle($fh, $user) { + + $stream = stream_get_meta_data($fh); + + if (!MediaFile::respectsQuota($user, filesize($stream['uri']))) { + + // Should never actually get here + + throw new ClientException(_('File exceeds user\'s quota!')); + return; + } + + $mimetype = MediaFile::getUploadedFileType($fh); + + $filename = null; + + if (isset($mimetype)) { + + $filename = File::filename($user->getProfile(), "email", $mimetype); + + $filepath = File::path($filename); + + $result = copy($stream['uri'], $filepath) && chmod($filepath, 0664); + + if (!$result) { + throw new ClientException(_('File could not be moved to destination directory.' . + $stream['uri'] . ' ' . $filepath)); + } + } else { + throw new ClientException(_('Could not determine file\'s mime-type!')); + return; + } + + return new MediaFile($user, $filename, $mimetype); + } + + static function getUploadedFileType($f) { + require_once 'MIME/Type.php'; + + $cmd = &PEAR::getStaticProperty('MIME_Type', 'fileCmd'); + $cmd = common_config('attachments', 'filecommand'); + + $filetype = null; + + if (is_string($f)) { + + // assuming a filename + + $filetype = MIME_Type::autoDetect($f); + } else { + + // assuming a filehandle + + $stream = stream_get_meta_data($f); + $filetype = MIME_Type::autoDetect($stream['uri']); + } + + if (in_array($filetype, common_config('attachments', 'supported'))) { + return $filetype; + } + $media = MIME_Type::getMedia($filetype); + if ('application' !== $media) { + $hint = sprintf(_(' Try using another %s format.'), $media); + } else { + $hint = ''; + } + throw new ClientException(sprintf( + _('%s is not a supported filetype on this server.'), $filetype) . $hint); + } + + static function respectsQuota($user, $filesize) + { + $file = new File; + $result = $file->isRespectsQuota($user, $filesize); + if ($result === true) { + return true; + } else { + throw new ClientException($result); + } + } + +}
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