105 lines
3.0 KiB
PHP
105 lines
3.0 KiB
PHP
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<?php
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/**
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* Laconica, the distributed open-source microblogging tool
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*
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* Abstraction for an image file
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*
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* PHP version 5
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*
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* LICENCE: This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* @category Image
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* @package Laconica
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* @author Evan Prodromou <evan@controlyourself.ca>
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* @author Zach Copley <zach@controlyourself.ca>
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* @copyright 2008-2009 Control Yourself, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://laconi.ca/
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*/
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if (!defined('LACONICA')) {
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exit(1);
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}
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/**
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* A wrapper on uploaded files
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*
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* Makes it slightly easier to accept an image file from upload.
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*
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* @category Image
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* @package Laconica
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* @author Evan Prodromou <evan@controlyourself.ca>
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* @author Zach Copley <zach@controlyourself.ca>
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://laconi.ca/
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*/
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class ImageFile
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{
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var $filename = null;
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var $type = null;
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function __construct($filename=null, $type=null)
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{
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$this->filename = $filename;
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$this->type = $type;
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}
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static function fromUpload($param='upload')
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{
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switch ($_FILES[$param]['error']) {
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case UPLOAD_ERR_OK: // success, jump out
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break;
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case UPLOAD_ERR_INI_SIZE:
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case UPLOAD_ERR_FORM_SIZE:
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throw new Exception(_('That file is too big.'));
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return;
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case UPLOAD_ERR_PARTIAL:
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@unlink($_FILES[$param]['tmp_name']);
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throw new Exception(_('Partial upload.'));
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return;
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default:
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throw new Exception(_('System error uploading file.'));
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return;
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}
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$imagefile = new ImageFile($_FILES[$param]['tmp_name']);
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$info = @getimagesize($imagefile->filename);
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if (!$info) {
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@unlink($imagefile->filename);
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throw new Exception(_('Not an image or corrupt file.'));
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return;
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}
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switch ($info[2]) {
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case IMAGETYPE_GIF:
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case IMAGETYPE_JPEG:
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case IMAGETYPE_PNG:
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$imagefile->type = $info[2];
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break;
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default:
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@unlink($imagefile->filename);
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throw new Exception(_('Unsupported image file format.'));
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return;
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}
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return $imagefile;
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}
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function unlink()
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{
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@unlink($this->filename);
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}
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}
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