9a515b9234
Avoid the use of deprecated MariaDB "zero dates" globally. If they're present as attribute defaults somewhere, they will be replaced with NULL implicitly. The existing "zero dates" in MariaDB storage will be left intact and this should not present any issues. The "timestamp" type in table definitions now corresponds to DATETIME in MariaDB with "DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP", which should be close enough to the original behaviour for compatibility purposes. It is now the recommended type for "modified" attributes, because of the update trigger on MariaDB. But there is no such trigger implemented on PostgreSQL as of this moment.
312 lines
11 KiB
PHP
312 lines
11 KiB
PHP
<?php
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// This file is part of GNU social - https://www.gnu.org/software/social
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//
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// GNU social 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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// GNU social 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 GNU social. If not, see <http://www.gnu.org/licenses/>.
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/*
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* @copyright 2008-2009 StatusNet, Inc.
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* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
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*/
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defined('GNUSOCIAL') || die();
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/**
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* Table Definition for file_thumbnail
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*/
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class File_thumbnail extends Managed_DataObject
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{
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public $__table = 'file_thumbnail'; // table name
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public $file_id; // int(4) primary_key not_null
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public $urlhash; // varchar(64) indexed
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public $url; // text
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public $filename; // text
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public $width; // int(4) primary_key
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public $height; // int(4) primary_key
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public $modified; // timestamp() not_null default_CURRENT_TIMESTAMP
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const URLHASH_ALG = 'sha256';
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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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'file_id' => array('type' => 'int', 'not null' => true, 'description' => 'thumbnail for what URL/file'),
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'urlhash' => array('type' => 'varchar', 'length' => 64, 'description' => 'sha256 of url field if non-empty'),
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'url' => array('type' => 'text', 'description' => 'URL of thumbnail'),
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'filename' => array('type' => 'text', 'description' => 'if stored locally, filename is put here'),
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'width' => array('type' => 'int', 'not null' => true, 'description' => 'width of thumbnail'),
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'height' => array('type' => 'int', 'not null' => true, 'description' => 'height of thumbnail'),
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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('file_id', 'width', 'height'),
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'indexes' => array(
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'file_thumbnail_file_id_idx' => array('file_id'),
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'file_thumbnail_urlhash_idx' => array('urlhash'),
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),
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'foreign keys' => array(
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'file_thumbnail_file_id_fkey' => array('file', array('file_id' => 'id')),
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)
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);
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}
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/**
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* Save oEmbed-provided thumbnail data
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*
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* @param object $data
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* @param int $file_id
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*/
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public static function saveNew($data, $file_id)
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{
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if (!empty($data->thumbnail_url)) {
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// Non-photo types such as video will usually
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// show us a thumbnail, though it's not required.
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self::saveThumbnail(
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$file_id,
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$data->thumbnail_url,
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$data->thumbnail_width,
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$data->thumbnail_height
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);
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} elseif ($data->type == 'photo') {
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// The inline photo URL given should also fit within
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// our requested thumbnail size, per oEmbed spec.
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self::saveThumbnail(
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$file_id,
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$data->url,
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$data->width,
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$data->height
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);
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}
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}
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/**
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* Fetch an entry by using a File's id
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*
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* @param File $file The File object we're getting a thumbnail for.
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* @param boolean $notNullUrl Originally remote thumbnails have a URL stored, we use this to find the "original"
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*
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* @return File_thumbnail
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* @throws NoResultException if no File_thumbnail matched the criteria
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*/
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public static function byFile(File $file, $notNullUrl = true)
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{
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$thumb = new File_thumbnail();
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$thumb->file_id = $file->getID();
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if ($notNullUrl) {
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$thumb->whereAdd('url IS NOT NULL');
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}
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$thumb->orderBy('modified ASC'); // the first created, a somewhat ugly hack
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$thumb->limit(1);
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if (!$thumb->find(true)) {
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throw new NoResultException($thumb);
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}
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return $thumb;
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}
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/**
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* Save a thumbnail record for the referenced file record.
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*
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* FIXME: Add error handling
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*
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* @param int $file_id
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* @param string $url
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* @param int $width
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* @param int $height
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*/
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public static function saveThumbnail($file_id, $url, $width, $height, $filename = null)
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{
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$tn = new File_thumbnail;
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$tn->file_id = $file_id;
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$tn->url = $url;
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$tn->filename = $filename;
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$tn->width = intval($width);
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$tn->height = intval($height);
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$tn->insert();
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return $tn;
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}
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public static function path($filename)
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{
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File::tryFilename($filename);
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// NOTE: If this is left empty in default config, it will be set to File::path('thumb')
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$dir = common_config('thumbnail', 'dir');
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if (!in_array($dir[mb_strlen($dir)-1], ['/', '\\'])) {
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$dir .= DIRECTORY_SEPARATOR;
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}
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return $dir . $filename;
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}
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public static function url($filename)
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{
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File::tryFilename($filename);
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// FIXME: private site thumbnails?
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$path = common_config('thumbnail', 'path');
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if (empty($path)) {
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return File::url('thumb')."/{$filename}";
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}
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$protocol = (GNUsocial::useHTTPS() ? 'https' : 'http');
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$server = common_config('thumbnail', 'server') ?: common_config('site', 'server');
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if ($path[mb_strlen($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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public function getFilename()
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{
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return File::tryFilename($this->filename);
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}
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/**
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* @return string full filesystem path to the locally stored thumbnail file
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* @throws FileNotFoundException
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* @throws ServerException
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*/
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public function getPath()
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{
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$oldpath = File::path($this->getFilename());
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$thumbpath = self::path($this->getFilename());
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// If we have a file in our old thumbnail storage path, move (or copy) it to the new one
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// (if the if/elseif don't match, we have a $thumbpath just as we should and can return it)
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if (file_exists($oldpath) && !file_exists($thumbpath)) {
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try {
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// let's get the filename of the File, to check below if it happens to be identical
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$file_filename = $this->getFile()->getFilename();
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} catch (NoResultException $e) {
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// reasonably the function calling us will handle the following as "File_thumbnail entry should be deleted"
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throw new FileNotFoundException($thumbpath);
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} catch (InvalidFilenameException $e) {
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// invalid filename in getFile()->getFilename(), just
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// means the File object isn't stored locally and that
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// means it's safe to move it below.
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$file_filename = null;
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}
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if ($this->getFilename() === $file_filename) {
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// special case where thumbnail file exactly matches stored File filename
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common_debug('File filename and File_thumbnail filename match on '.$this->file_id.', copying instead');
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copy($oldpath, $thumbpath);
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} elseif (!rename($oldpath, $thumbpath)) {
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common_log(LOG_ERR, 'Could not move thumbnail from '._ve($oldpath).' to '._ve($thumbpath));
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throw new ServerException('Could not move thumbnail from old path to new path.');
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} else {
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common_log(LOG_DEBUG, 'Moved thumbnail '.$this->file_id.' from '._ve($oldpath).' to '._ve($thumbpath));
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}
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} elseif (!file_exists($thumbpath)) {
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throw new FileNotFoundException($thumbpath);
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}
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return $thumbpath;
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}
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public function getUrl()
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{
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if (!empty($this->filename) || $this->getFile()->isLocal()) {
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// A locally stored File, so we can dynamically generate a URL.
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$url = common_local_url('attachment_thumbnail', array('attachment'=>$this->file_id));
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if (strpos($url, '?') === false) {
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$url .= '?';
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}
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return $url . http_build_query(array('w'=>$this->width, 'h'=>$this->height));
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}
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// No local filename available, return the remote URL we have stored
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return $this->url;
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}
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public function getHeight()
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{
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return $this->height;
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}
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public function getWidth()
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{
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return $this->width;
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}
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/**
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* @throws UseFileAsThumbnailException from File_thumbnail->getUrl() for stuff like animated GIFs
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*/
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public function getHtmlAttrs(array $orig=array(), $overwrite=true)
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{
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$attrs = [ 'height' => $this->getHeight(),
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'width' => $this->getWidth(),
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'src' => $this->getUrl() ];
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return $overwrite ? array_merge($orig, $attrs) : array_merge($attrs, $orig);
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}
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public function delete($useWhere=false)
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{
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try {
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$thumbpath = self::path($this->getFilename());
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// if file does not exist, try to delete it
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$deleted = !file_exists($thumbpath) || @unlink($thumbpath);
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if (!$deleted) {
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common_log(LOG_ERR, 'Could not unlink existing thumbnail file: '._ve($thumbpath));
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}
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} catch (InvalidFilenameException $e) {
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common_log(LOG_ERR, 'Deleting object but not attempting deleting file: '._ve($e->getMessage()));
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}
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return parent::delete($useWhere);
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}
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public function getFile()
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{
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return File::getByID($this->file_id);
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}
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public function getFileId()
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{
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return $this->file_id;
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}
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public static function hashurl($url)
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{
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if (!mb_strlen($url)) {
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throw new Exception('No URL provided to hash algorithm.');
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}
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return hash(self::URLHASH_ALG, $url);
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}
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public function onInsert()
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{
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$this->setUrlhash();
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}
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public function onUpdate($dataObject=false)
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{
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// if we have nothing to compare with OR it has changed from previous entry
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if (!$dataObject instanceof Managed_DataObject || $this->url !== $dataObject->url) {
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$this->setUrlhash();
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}
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}
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public function setUrlhash()
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{
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$this->urlhash = mb_strlen($this->url)>0 ? self::hashurl($this->url) : null;
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}
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}
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