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