d59eb5e184
The File object now stores width and height of files that can supply this kind of information. Formats which we can not read natively in PHP do not currently benefit from this. However an event hook will be introduced later. The CreateFileImageThumbnail event is renamed to: CreateFileImageThumbnailSource to clarify that the hooks should not generate their own thumbnails but only the source image. Also it now accepts File objects, not MediaFile objects. The thumbnail generation is documented in the source code. For developers, call 'getThumbnail' on a File object and hope for the best. Default thumbnail sizes have increased to be more appealing.
612 lines
24 KiB
PHP
612 lines
24 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('GNUSOCIAL')) { exit(1); }
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/**
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* Table Definition for file
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*/
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class File extends Managed_DataObject
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{
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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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public static function schemaDef()
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{
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return array(
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'fields' => array(
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'id' => array('type' => 'serial', 'not null' => true),
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'url' => array('type' => 'varchar', 'length' => 255, 'description' => 'destination URL after following redirections'),
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'mimetype' => array('type' => 'varchar', 'length' => 50, 'description' => 'mime type of resource'),
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'size' => array('type' => 'int', 'description' => 'size of resource when available'),
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'title' => array('type' => 'varchar', 'length' => 255, 'description' => 'title of resource when available'),
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'date' => array('type' => 'int', 'description' => 'date of resource according to http query'),
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'protected' => array('type' => 'int', 'description' => 'true when URL is private (needs login)'),
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'filename' => array('type' => 'varchar', 'length' => 255, 'description' => 'if a local file, name of the file'),
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'width' => array('type' => 'int', 'description' => 'width in pixels, if it can be described as such and data is available'),
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'height' => array('type' => 'int', 'description' => 'height in pixels, if it can be described as such and data is available'),
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'modified' => array('type' => 'timestamp', 'not null' => true, 'description' => 'date this record was modified'),
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),
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'primary key' => array('id'),
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'unique keys' => array(
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'file_url_key' => array('url'),
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),
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);
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}
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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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* 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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public static function saveNew(array $redir_data, $given_url) {
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// I don't know why we have to keep doing this but I'm adding this last check to avoid
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// uniqueness bugs.
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$x = File::getKV('url', $given_url);
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if (!$x instanceof File) {
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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 = $x->insert();
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}
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$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(array $redir_data, $given_url)
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{
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if (isset($redir_data['type'])
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&& (('text/html' === substr($redir_data['type'], 0, 9)
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|| 'application/xhtml+xml' === substr($redir_data['type'], 0, 21)))) {
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try {
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$oembed_data = File_oembed::_getOembed($given_url);
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} catch (Exception $e) {
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return false;
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}
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if ($oembed_data === false) {
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return false;
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}
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$fo = File_oembed::getKV('file_id', $this->id);
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if ($fo instanceof File_oembed) {
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common_log(LOG_WARNING, "Strangely, a File_oembed object exists for new file $file_id", __FILE__);
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} else {
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File_oembed::saveNew($oembed_data, $this->id);
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return true;
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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::getKV('url', $given_url);
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if (empty($file)) {
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$file_redir = File_redirection::getKV('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::getKV('id', $file_id);
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if (empty($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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public static function respectsQuota(Profile $scoped, $fileSize) {
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if ($fileSize > common_config('attachments', 'file_quota')) {
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// TRANS: Message used to be inserted as %2$s in the text "No file may
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// TRANS: be larger than %1$d byte and the file you sent was %2$s.".
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// TRANS: %1$d is the number of bytes of an uploaded file.
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$fileSizeText = sprintf(_m('%1$d byte','%1$d bytes',$fileSize),$fileSize);
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$fileQuota = 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$d (used for plural) is the byte limit for uploads,
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// TRANS: %2$s is the proper form of "n bytes". This is the only ways to have
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// TRANS: gettext support multiple plurals in the same message, unfortunately...
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throw new ClientException(
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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.',
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'No file may be larger than %1$d bytes and the file you sent was %2$s. Try to upload a smaller version.',
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$fileQuota),
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$fileQuota, $fileSizeText));
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}
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$file = new File;
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$query = "select sum(size) as total from file join file_to_post on file_to_post.file_id = file.id join notice on file_to_post.post_id = notice.id where profile_id = {$scoped->id} and file.url like '%/notice/%/file'";
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$file->query($query);
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$file->fetch();
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$total = $file->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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throw new ClientException(
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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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$query .= ' AND EXTRACT(month FROM file.modified) = EXTRACT(month FROM now()) and EXTRACT(year FROM file.modified) = EXTRACT(year FROM now())';
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$file->query($query);
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$file->fetch();
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$total = $file->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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throw new ClientException(
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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 $profile, $origname, $mimetype)
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{
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try {
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$ext = common_supported_mime_to_ext($mimetype);
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} catch (Exception $e) {
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// We don't support this mimetype, but let's guess the extension
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$ext = substr(strrchr($mimetype, '/'), 1);
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}
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// Normalize and make the original filename more URL friendly.
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$origname = basename($origname);
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if (class_exists('Normalizer')) {
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// http://php.net/manual/en/class.normalizer.php
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// http://www.unicode.org/reports/tr15/
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$origname = Normalizer::normalize($origname, Normalizer::FORM_KC);
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}
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$origname = preg_replace('/[^A-Za-z0-9\.\_]/', '_', $origname);
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$nickname = $profile->nickname;
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$datestamp = strftime('%Y%m%d', time());
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do {
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// generate new random strings until we don't run into a filename collision.
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$random = strtolower(common_confirmation_code(16));
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$filename = "$nickname-$datestamp-$origname-$random.$ext";
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} while (file_exists(self::path($filename)));
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return $filename;
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}
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/**
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* Validation for as-saved base filenames
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*/
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static function validFilename($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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$oembed = File_oembed::getKV('file_id',$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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* Make sure you supply proper 'int' typed variables (or null).
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*
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* @param $width int Max width of thumbnail in pixels. (if null, use common_config values)
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* @param $height int Max height of thumbnail in pixels. (if null, square-crop to $width)
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* @param $crop bool Crop to the max-values' aspect ratio
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*
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* @return File_thumbnail
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*/
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public function getThumbnail($width=null, $height=null, $crop=false)
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{
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if ($this->width < 1 || $this->height < 1) {
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// Old files may have 0 until migrated with scripts/upgrade.php
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return null;
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}
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if ($width === null) {
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$width = common_config('thumbnail', 'width');
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$height = common_config('thumbnail', 'height');
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$crop = common_config('thumbnail', 'crop');
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|
}
|
|
|
|
if ($height === null) {
|
|
$height = $width;
|
|
$crop = true;
|
|
}
|
|
|
|
// Get proper aspect ratio width and height before lookup
|
|
list($width, $height, $x, $y, $w2, $h2) =
|
|
ImageFile::getScalingValues($this->width, $this->height, $width, $height, $crop);
|
|
|
|
// Doublecheck that parameters are sane and integers.
|
|
if ($width < 1 || $width > common_config('thumbnail', 'maxsize')
|
|
|| $height < 1 || $height > common_config('thumbnail', 'maxsize')) {
|
|
// Fail on bad width parameter.
|
|
throw new ServerException('Bad thumbnail width or height parameter');
|
|
}
|
|
|
|
$params = array('file_id'=> $this->id,
|
|
'width' => $width,
|
|
'height' => $height);
|
|
$thumb = File_thumbnail::pkeyGet($params);
|
|
if ($thumb === null) {
|
|
try {
|
|
$thumb = $this->generateThumbnail($width, $height, $crop);
|
|
} catch (UnsupportedMediaException $e) {
|
|
// FIXME: Add "unknown media" icon or something
|
|
} catch (ServerException $e) {
|
|
// Probably a remote media file, maybe not available locally
|
|
}
|
|
}
|
|
return $thumb;
|
|
}
|
|
|
|
/**
|
|
* Generate and store a thumbnail image for the uploaded file, if applicable.
|
|
* Call this only if you know what you're doing.
|
|
*
|
|
* @param $width int Maximum thumbnail width in pixels
|
|
* @param $height int Maximum thumbnail height in pixels, if null, crop to $width
|
|
*
|
|
* @return File_thumbnail or null
|
|
*/
|
|
protected function generateThumbnail($width, $height, $crop)
|
|
{
|
|
$imgPath = null;
|
|
$media = common_get_mime_media($this->mimetype);
|
|
$width = intval($width);
|
|
if ($height === null) {
|
|
$height = $width;
|
|
$crop = true;
|
|
}
|
|
|
|
if (Event::handle('CreateFileImageThumbnailSource', array($this, &$imgPath, $media))) {
|
|
switch ($media) {
|
|
case 'image':
|
|
$imgPath = $this->getPath();
|
|
break;
|
|
default:
|
|
throw new UnsupportedMediaException(_('Unsupported media format.'), $this->getPath());
|
|
}
|
|
}
|
|
if (!file_exists($imgPath)) {
|
|
throw new ServerException(sprintf('Thumbnail source is not stored locally: %s', $imgPath));
|
|
}
|
|
|
|
try {
|
|
$image = new ImageFile($this->id, $imgPath);
|
|
} catch (UnsupportedMediaException $e) {
|
|
// Avoid deleting the original
|
|
if ($image->getPath() != $this->getPath()) {
|
|
$image->unlink();
|
|
}
|
|
throw $e;
|
|
}
|
|
|
|
list($width, $height, $x, $y, $w2, $h2) =
|
|
$image->scaleToFit($width, $height, $crop);
|
|
|
|
$outname = "thumb-{$width}x{$height}-" . $this->filename;
|
|
$outpath = self::path($outname);
|
|
|
|
$image->resizeTo($outpath, $width, $height, $x, $y, $w2, $h2);
|
|
|
|
// Avoid deleting the original
|
|
if ($image->getPath() != $this->getPath()) {
|
|
$image->unlink();
|
|
}
|
|
return File_thumbnail::saveThumbnail($this->id,
|
|
self::url($outname),
|
|
$width, $height);
|
|
}
|
|
|
|
public function getPath()
|
|
{
|
|
return self::path($this->filename);
|
|
}
|
|
public function getUrl()
|
|
{
|
|
return $this->url;
|
|
}
|
|
|
|
/**
|
|
* Blow the cache of notices that link to this URL
|
|
*
|
|
* @param boolean $last Whether to blow the "last" cache too
|
|
*
|
|
* @return void
|
|
*/
|
|
|
|
function blowCache($last=false)
|
|
{
|
|
self::blow('file:notice-ids:%s', $this->url);
|
|
if ($last) {
|
|
self::blow('file:notice-ids:%s;last', $this->url);
|
|
}
|
|
self::blow('file:notice-count:%d', $this->id);
|
|
}
|
|
|
|
/**
|
|
* Stream of notices linking to this URL
|
|
*
|
|
* @param integer $offset Offset to show; default is 0
|
|
* @param integer $limit Limit of notices to show
|
|
* @param integer $since_id Since this notice
|
|
* @param integer $max_id Before this notice
|
|
*
|
|
* @return array ids of notices that link to this file
|
|
*/
|
|
|
|
function stream($offset=0, $limit=NOTICES_PER_PAGE, $since_id=0, $max_id=0)
|
|
{
|
|
$stream = new FileNoticeStream($this);
|
|
return $stream->getNotices($offset, $limit, $since_id, $max_id);
|
|
}
|
|
|
|
function noticeCount()
|
|
{
|
|
$cacheKey = sprintf('file:notice-count:%d', $this->id);
|
|
|
|
$count = self::cacheGet($cacheKey);
|
|
|
|
if ($count === false) {
|
|
|
|
$f2p = new File_to_post();
|
|
|
|
$f2p->file_id = $this->id;
|
|
|
|
$count = $f2p->count();
|
|
|
|
self::cacheSet($cacheKey, $count);
|
|
}
|
|
|
|
return $count;
|
|
}
|
|
}
|