44bcc942b8
Rearchitect (again!) notice stream code to delegate different functionality up and down the stack. Now, different classes implement NoticeStream.
476 lines
18 KiB
PHP
476 lines
18 KiB
PHP
<?php
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/*
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* StatusNet - the distributed open-source microblogging tool
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* Copyright (C) 2008, 2009, StatusNet, Inc.
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*
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* 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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if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }
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require_once INSTALLDIR.'/classes/Memcached_DataObject.php';
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require_once INSTALLDIR.'/classes/File_redirection.php';
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require_once INSTALLDIR.'/classes/File_oembed.php';
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require_once INSTALLDIR.'/classes/File_thumbnail.php';
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require_once INSTALLDIR.'/classes/File_to_post.php';
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//require_once INSTALLDIR.'/classes/File_redirection.php';
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/**
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* Table Definition for file
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*/
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class File extends Memcached_DataObject
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{
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###START_AUTOCODE
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/* the code below is auto generated do not remove the above tag */
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public $__table = 'file'; // table name
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public $id; // int(4) primary_key not_null
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public $url; // varchar(255) unique_key
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public $mimetype; // varchar(50)
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public $size; // int(4)
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public $title; // varchar(255)
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public $date; // int(4)
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public $protected; // int(4)
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public $filename; // varchar(255)
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public $modified; // timestamp() not_null default_CURRENT_TIMESTAMP
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/* Static get */
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function staticGet($k,$v=NULL) { return Memcached_DataObject::staticGet('File',$k,$v); }
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/* the code above is auto generated do not remove the tag below */
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###END_AUTOCODE
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function isProtected($url) {
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return 'http://www.facebook.com/login.php' === $url;
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}
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/**
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* Get the attachments for a particlar notice.
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*
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* @param int $post_id
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* @return array of File objects
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*/
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static function getAttachments($post_id) {
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$file = new File();
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$query = "select file.* from file join file_to_post on (file_id = file.id) where post_id = " . $file->escape($post_id);
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$file = Memcached_DataObject::cachedQuery('File', $query);
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$att = array();
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while ($file->fetch()) {
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$att[] = clone($file);
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}
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return $att;
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}
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/**
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* Save a new file record.
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*
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* @param array $redir_data lookup data eg from File_redirection::where()
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* @param string $given_url
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* @return File
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*/
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function saveNew(array $redir_data, $given_url) {
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$x = new File;
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$x->url = $given_url;
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if (!empty($redir_data['protected'])) $x->protected = $redir_data['protected'];
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if (!empty($redir_data['title'])) $x->title = $redir_data['title'];
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if (!empty($redir_data['type'])) $x->mimetype = $redir_data['type'];
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if (!empty($redir_data['size'])) $x->size = intval($redir_data['size']);
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if (isset($redir_data['time']) && $redir_data['time'] > 0) $x->date = intval($redir_data['time']);
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$file_id = $x->insert();
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$x->saveOembed($redir_data, $given_url);
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return $x;
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}
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/**
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* Save embedding information for this file, if applicable.
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*
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* Normally this won't need to be called manually, as File::saveNew()
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* takes care of it.
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*
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* @param array $redir_data lookup data eg from File_redirection::where()
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* @param string $given_url
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* @return boolean success
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*/
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public function saveOembed($redir_data, $given_url)
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{
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if (isset($redir_data['type'])
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&& (('text/html' === substr($redir_data['type'], 0, 9) || 'application/xhtml+xml' === substr($redir_data['type'], 0, 21)))
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&& ($oembed_data = File_oembed::_getOembed($given_url))) {
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$fo = File_oembed::staticGet('file_id', $this->id);
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if (empty($fo)) {
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File_oembed::saveNew($oembed_data, $this->id);
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return true;
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} else {
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common_log(LOG_WARNING, "Strangely, a File_oembed object exists for new file $file_id", __FILE__);
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}
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}
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return false;
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}
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/**
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* Go look at a URL and possibly save data about it if it's new:
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* - follow redirect chains and store them in file_redirection
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* - look up oEmbed data and save it in file_oembed
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* - if a thumbnail is available, save it in file_thumbnail
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* - save file record with basic info
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* - optionally save a file_to_post record
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* - return the File object with the full reference
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*
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* @fixme refactor this mess, it's gotten pretty scary.
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* @param string $given_url the URL we're looking at
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* @param int $notice_id (optional)
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* @param bool $followRedirects defaults to true
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*
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* @return mixed File on success, -1 on some errors
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*
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* @throws ServerException on some errors
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*/
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public function processNew($given_url, $notice_id=null, $followRedirects=true) {
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if (empty($given_url)) return -1; // error, no url to process
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$given_url = File_redirection::_canonUrl($given_url);
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if (empty($given_url)) return -1; // error, no url to process
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$file = File::staticGet('url', $given_url);
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if (empty($file)) {
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$file_redir = File_redirection::staticGet('url', $given_url);
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if (empty($file_redir)) {
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// @fixme for new URLs this also looks up non-redirect data
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// such as target content type, size, etc, which we need
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// for File::saveNew(); so we call it even if not following
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// new redirects.
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$redir_data = File_redirection::where($given_url);
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if (is_array($redir_data)) {
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$redir_url = $redir_data['url'];
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} elseif (is_string($redir_data)) {
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$redir_url = $redir_data;
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$redir_data = array();
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} else {
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// TRANS: Server exception thrown when a URL cannot be processed.
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throw new ServerException(sprintf(_("Cannot process URL '%s'"), $given_url));
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}
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// TODO: max field length
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if ($redir_url === $given_url || strlen($redir_url) > 255 || !$followRedirects) {
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$x = File::saveNew($redir_data, $given_url);
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$file_id = $x->id;
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} else {
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// This seems kind of messed up... for now skipping this part
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// if we're already under a redirect, so we don't go into
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// horrible infinite loops if we've been given an unstable
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// redirect (where the final destination of the first request
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// doesn't match what we get when we ask for it again).
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//
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// Seen in the wild with clojure.org, which redirects through
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// wikispaces for auth and appends session data in the URL params.
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$x = File::processNew($redir_url, $notice_id, /*followRedirects*/false);
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$file_id = $x->id;
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File_redirection::saveNew($redir_data, $file_id, $given_url);
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}
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} else {
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$file_id = $file_redir->file_id;
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}
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} else {
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$file_id = $file->id;
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$x = $file;
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}
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if (empty($x)) {
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$x = File::staticGet($file_id);
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if (empty($x)) {
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// @todo FIXME: This could possibly be a clearer message :)
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// TRANS: Server exception thrown when... Robin thinks something is impossible!
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throw new ServerException(_('Robin thinks something is impossible.'));
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}
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}
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if (!empty($notice_id)) {
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File_to_post::processNew($file_id, $notice_id);
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}
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return $x;
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}
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function isRespectsQuota($user,$fileSize) {
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if ($fileSize > common_config('attachments', 'file_quota')) {
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// TRANS: Message given if an upload is larger than the configured maximum.
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// TRANS: %1$d is the byte limit for uploads, %2$d is the byte count for the uploaded file.
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// TRANS: %1$s is used for plural.
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return sprintf(_m('No file may be larger than %1$d byte and the file you sent was %2$d bytes. Try to upload a smaller version.',
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'No file may be larger than %1$d bytes and the file you sent was %2$d bytes. Try to upload a smaller version.',
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common_config('attachments', 'file_quota')),
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common_config('attachments', 'file_quota'), $fileSize);
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}
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$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 = {$user->id} and file.url like '%/notice/%/file'";
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$this->query($query);
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$this->fetch();
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$total = $this->total + $fileSize;
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if ($total > common_config('attachments', 'user_quota')) {
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// TRANS: Message given if an upload would exceed user quota.
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// TRANS: %d (number) is the user quota in bytes and is used for plural.
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return sprintf(_m('A file this large would exceed your user quota of %d byte.',
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'A file this large would exceed your user quota of %d bytes.',
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common_config('attachments', 'user_quota')),
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common_config('attachments', 'user_quota'));
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}
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$query .= ' AND EXTRACT(month FROM file.modified) = EXTRACT(month FROM now()) and EXTRACT(year FROM file.modified) = EXTRACT(year FROM now())';
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$this->query($query);
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$this->fetch();
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$total = $this->total + $fileSize;
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if ($total > common_config('attachments', 'monthly_quota')) {
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// TRANS: Message given id an upload would exceed a user's monthly quota.
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// TRANS: $d (number) is the monthly user quota in bytes and is used for plural.
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return sprintf(_m('A file this large would exceed your monthly quota of %d byte.',
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'A file this large would exceed your monthly quota of %d bytes.',
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common_config('attachments', 'monthly_quota')),
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common_config('attachments', 'monthly_quota'));
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}
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return true;
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}
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// where should the file go?
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static function filename($profile, $basename, $mimetype)
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{
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require_once 'MIME/Type/Extension.php';
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// We have to temporarily disable auto handling of PEAR errors...
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PEAR::staticPushErrorHandling(PEAR_ERROR_RETURN);
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$mte = new MIME_Type_Extension();
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$ext = $mte->getExtension($mimetype);
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if (PEAR::isError($ext)) {
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$ext = strtolower(preg_replace('/\W/', '', $mimetype));
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}
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// Restore error handling.
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PEAR::staticPopErrorHandling();
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$nickname = $profile->nickname;
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$datestamp = strftime('%Y%m%dT%H%M%S', time());
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$random = strtolower(common_confirmation_code(32));
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return "$nickname-$datestamp-$random.$ext";
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}
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/**
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* Validation for as-saved base filenames
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*/
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static function validFilename($filename)
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{
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return preg_match('/^[A-Za-z0-9._-]+$/', $filename);
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}
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/**
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* @throws ClientException on invalid filename
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*/
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static function path($filename)
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{
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if (!self::validFilename($filename)) {
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// TRANS: Client exception thrown if a file upload does not have a valid name.
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throw new ClientException(_("Invalid filename."));
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}
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$dir = common_config('attachments', 'dir');
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if ($dir[strlen($dir)-1] != '/') {
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$dir .= '/';
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}
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return $dir . $filename;
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}
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static function url($filename)
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{
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if (!self::validFilename($filename)) {
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// TRANS: Client exception thrown if a file upload does not have a valid name.
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throw new ClientException(_("Invalid filename."));
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}
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if (common_config('site','private')) {
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return common_local_url('getfile',
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array('filename' => $filename));
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}
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if (StatusNet::isHTTPS()) {
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$sslserver = common_config('attachments', 'sslserver');
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if (empty($sslserver)) {
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// XXX: this assumes that background dir == site dir + /file/
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// not true if there's another server
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if (is_string(common_config('site', 'sslserver')) &&
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mb_strlen(common_config('site', 'sslserver')) > 0) {
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$server = common_config('site', 'sslserver');
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} else if (common_config('site', 'server')) {
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$server = common_config('site', 'server');
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}
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$path = common_config('site', 'path') . '/file/';
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} else {
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$server = $sslserver;
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$path = common_config('attachments', 'sslpath');
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if (empty($path)) {
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$path = common_config('attachments', 'path');
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}
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}
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$protocol = 'https';
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} else {
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$path = common_config('attachments', 'path');
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$server = common_config('attachments', 'server');
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if (empty($server)) {
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$server = common_config('site', 'server');
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}
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$ssl = common_config('attachments', 'ssl');
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$protocol = ($ssl) ? 'https' : 'http';
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}
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if ($path[strlen($path)-1] != '/') {
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$path .= '/';
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}
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if ($path[0] != '/') {
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$path = '/'.$path;
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}
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return $protocol.'://'.$server.$path.$filename;
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}
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function getEnclosure(){
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$enclosure = (object) array();
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$enclosure->title=$this->title;
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$enclosure->url=$this->url;
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$enclosure->title=$this->title;
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$enclosure->date=$this->date;
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$enclosure->modified=$this->modified;
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$enclosure->size=$this->size;
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$enclosure->mimetype=$this->mimetype;
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if(! isset($this->filename)){
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$notEnclosureMimeTypes = array(null,'text/html','application/xhtml+xml');
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$mimetype = $this->mimetype;
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if($mimetype != null){
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$mimetype = strtolower($this->mimetype);
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}
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$semicolon = strpos($mimetype,';');
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if($semicolon){
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$mimetype = substr($mimetype,0,$semicolon);
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}
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if(in_array($mimetype,$notEnclosureMimeTypes)){
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// Never treat generic HTML links as an enclosure type!
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// But if we have oEmbed info, we'll consider it golden.
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$oembed = File_oembed::staticGet('file_id',$this->id);
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if($oembed && in_array($oembed->type, array('photo', 'video'))){
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$mimetype = strtolower($oembed->mimetype);
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$semicolon = strpos($mimetype,';');
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if($semicolon){
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$mimetype = substr($mimetype,0,$semicolon);
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}
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// @fixme uncertain if this is right.
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// we want to expose things like YouTube videos as
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// viewable attachments, but don't expose them as
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// downloadable enclosures.....?
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//if (in_array($mimetype, $notEnclosureMimeTypes)) {
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// return false;
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//} else {
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if($oembed->mimetype) $enclosure->mimetype=$oembed->mimetype;
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if($oembed->url) $enclosure->url=$oembed->url;
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if($oembed->title) $enclosure->title=$oembed->title;
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if($oembed->modified) $enclosure->modified=$oembed->modified;
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unset($oembed->size);
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//}
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} else {
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return false;
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}
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}
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}
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return $enclosure;
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}
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// quick back-compat hack, since there's still code using this
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function isEnclosure()
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{
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$enclosure = $this->getEnclosure();
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return !empty($enclosure);
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}
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/**
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* Get the attachment's thumbnail record, if any.
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*
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* @return File_thumbnail
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*/
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function getThumbnail()
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{
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return File_thumbnail::staticGet('file_id', $this->id);
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}
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/**
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* Blow the cache of notices that link to this URL
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*
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* @param boolean $last Whether to blow the "last" cache too
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*
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* @return void
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*/
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function blowCache($last=false)
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{
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self::blow('file:notice-ids:%s', $this->url);
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if ($last) {
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self::blow('file:notice-ids:%s;last', $this->url);
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}
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self::blow('file:notice-count:%d', $this->id);
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}
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/**
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* Stream of notices linking to this URL
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*
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* @param integer $offset Offset to show; default is 0
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* @param integer $limit Limit of notices to show
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* @param integer $since_id Since this notice
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* @param integer $max_id Before this notice
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*
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* @return array ids of notices that link to this file
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*/
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function stream($offset=0, $limit=NOTICES_PER_PAGE, $since_id=0, $max_id=0)
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{
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$stream = new FileNoticeStream($this);
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return $stream->getNotices($offset, $limit, $since_id, $max_id);
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}
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function noticeCount()
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{
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$cacheKey = sprintf('file:notice-count:%d', $this->id);
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$count = self::cacheGet($cacheKey);
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if ($count === false) {
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$f2p = new File_to_post();
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$f2p->file_id = $this->id;
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$count = $f2p->count();
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self::cacheSet($cacheKey, $count);
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}
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return $count;
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}
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}
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