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Diffstat (limited to 'lib/imagefile.php')
| -rw-r--r-- | lib/imagefile.php | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/lib/imagefile.php b/lib/imagefile.php new file mode 100644 index 000000000..f15a72c76 --- /dev/null +++ b/lib/imagefile.php @@ -0,0 +1,105 @@ +<?php +/** + * Laconica, the distributed open-source microblogging tool + * + * Abstraction for an image file + * + * PHP version 5 + * + * LICENCE: This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + * @category Image + * @package Laconica + * @author Evan Prodromou <evan@controlyourself.ca> + * @author Zach Copley <zach@controlyourself.ca> + * @copyright 2008-2009 Control Yourself, Inc. + * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0 + * @link http://laconi.ca/ + */ + +if (!defined('LACONICA')) { + exit(1); +} + +/** + * A wrapper on uploaded files + * + * Makes it slightly easier to accept an image file from upload. + * + * @category Image + * @package Laconica + * @author Evan Prodromou <evan@controlyourself.ca> + * @author Zach Copley <zach@controlyourself.ca> + * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0 + * @link http://laconi.ca/ + */ + +class ImageFile +{ + var $filename = null; + var $type = null; + + function __construct($filename=null, $type=null) + { + $this->filename = $filename; + $this->type = $type; + } + + static function fromUpload($param='upload') + { + switch ($_FILES[$param]['error']) { + case UPLOAD_ERR_OK: // success, jump out + break; + case UPLOAD_ERR_INI_SIZE: + case UPLOAD_ERR_FORM_SIZE: + throw new Exception(_('That file is too big.')); + return; + case UPLOAD_ERR_PARTIAL: + @unlink($_FILES[$param]['tmp_name']); + throw new Exception(_('Partial upload.')); + return; + default: + throw new Exception(_('System error uploading file.')); + return; + } + + $imagefile = new ImageFile($_FILES[$param]['tmp_name']); + $info = @getimagesize($imagefile->filename); + + if (!$info) { + @unlink($imagefile->filename); + throw new Exception(_('Not an image or corrupt file.')); + return; + } + + switch ($info[2]) { + case IMAGETYPE_GIF: + case IMAGETYPE_JPEG: + case IMAGETYPE_PNG: + $imagefile->type = $info[2]; + break; + default: + @unlink($imagefile->filename); + throw new Exception(_('Unsupported image file format.')); + return; + } + + return $imagefile; + } + + function unlink() + { + @unlink($this->filename); + } +}
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