summaryrefslogtreecommitdiff
path: root/lib/mediafile.php
blob: 10d90d0081e877f5742194387a7019b5cad5f084 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
<?php
/**
 * StatusNet, the distributed open-source microblogging tool
 *
 * Abstraction for media files in general
 *
 * TODO: combine with ImageFile?
 *
 * 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  Media
 * @package   StatusNet
 * @author    Robin Millette <robin@millette.info>
 * @author    Zach Copley <zach@status.net>
 * @copyright 2008-2009 StatusNet, Inc.
 * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
 * @link      http://status.net/
 */

if (!defined('STATUSNET') && !defined('LACONICA')) {
    exit(1);
}

class MediaFile
{

    var $filename      = null;
    var $fileRecord    = null;
    var $user          = null;
    var $fileurl       = null;
    var $short_fileurl = null;
    var $mimetype      = null;

    function __construct($user = null, $filename = null, $mimetype = null)
    {
        if ($user == null) {
            $this->user = common_current_user();
        }

        $this->filename   = $filename;
        $this->mimetype   = $mimetype;
        $this->fileRecord = $this->storeFile();

        $this->fileurl = common_local_url('attachment',
                                    array('attachment' => $this->fileRecord->id));

        $this->maybeAddRedir($this->fileRecord->id, $this->fileurl);
        $this->short_fileurl = common_shorten_url($this->fileurl);
        $this->maybeAddRedir($this->fileRecord->id, $this->short_fileurl);
    }

    function attachToNotice($notice)
    {
        File_to_post::processNew($this->fileRecord->id, $notice->id);
        $this->maybeAddRedir($this->fileRecord->id,
                             common_local_url('file', array('notice' => $notice->id)));
    }

    function shortUrl()
    {
        return $this->short_fileurl;
    }

    function delete()
    {
        $filepath = File::path($this->filename);
        @unlink($filepath);
    }

    function storeFile() {

        $file = new File;

        $file->filename = $this->filename;
        $file->url      = File::url($this->filename);
        $filepath       = File::path($this->filename);
        $file->size     = filesize($filepath);
        $file->date     = time();
        $file->mimetype = $this->mimetype;

        $file_id = $file->insert();

        if (!$file_id) {
            common_log_db_error($file, "INSERT", __FILE__);
            throw new ClientException(_('There was a database error while saving your file. Please try again.'));
        }

        return $file;
    }

    function rememberFile($file, $short)
    {
        $this->maybeAddRedir($file->id, $short);
    }

    function maybeAddRedir($file_id, $url)
    {
        $file_redir = File_redirection::staticGet('url', $url);

        if (empty($file_redir)) {

            $file_redir = new File_redirection;
            $file_redir->url = $url;
            $file_redir->file_id = $file_id;

            $result = $file_redir->insert();

            if (!$result) {
                common_log_db_error($file_redir, "INSERT", __FILE__);
                throw new ClientException(_('There was a database error while saving your file. Please try again.'));
            }
        }
    }

    static function fromUpload($param = 'media', $user = null)
    {
        if (empty($user)) {
            $user = common_current_user();
        }

        if (!isset($_FILES[$param]['error'])){
            return;
        }

        switch ($_FILES[$param]['error']) {
        case UPLOAD_ERR_OK: // success, jump out
            break;
        case UPLOAD_ERR_INI_SIZE:
            throw new ClientException(_('The uploaded file exceeds the ' .
                'upload_max_filesize directive in php.ini.'));
            return;
        case UPLOAD_ERR_FORM_SIZE:
            throw new ClientException(
                _('The uploaded file exceeds the MAX_FILE_SIZE directive' .
                ' that was specified in the HTML form.'));
            return;
        case UPLOAD_ERR_PARTIAL:
            @unlink($_FILES[$param]['tmp_name']);
            throw new ClientException(_('The uploaded file was only' .
                ' partially uploaded.'));
            return;
        case UPLOAD_ERR_NO_FILE:
            // No file; probably just a non-AJAX submission.
            return;
        case UPLOAD_ERR_NO_TMP_DIR:
            throw new ClientException(_('Missing a temporary folder.'));
            return;
        case UPLOAD_ERR_CANT_WRITE:
            throw new ClientException(_('Failed to write file to disk.'));
            return;
        case UPLOAD_ERR_EXTENSION:
            throw new ClientException(_('File upload stopped by extension.'));
            return;
        default:
            common_log(LOG_ERR, __METHOD__ . ": Unknown upload error " .
                $_FILES[$param]['error']);
            throw new ClientException(_('System error uploading file.'));
            return;
        }

        if (!MediaFile::respectsQuota($user, $_FILES['attach']['size'])) {

            // Should never actually get here

            @unlink($_FILES[$param]['tmp_name']);
            throw new ClientException(_('File exceeds user\'s quota.'));
            return;
        }

        $mimetype = MediaFile::getUploadedFileType($_FILES[$param]['tmp_name']);

        $filename = null;

        if (isset($mimetype)) {

            $basename = basename($_FILES[$param]['name']);
            $filename = File::filename($user->getProfile(), $basename, $mimetype);
            $filepath = File::path($filename);

            $result = move_uploaded_file($_FILES[$param]['tmp_name'], $filepath);

            if (!$result) {
                throw new ClientException(_('File could not be moved to destination directory.'));
                return;
            }

        } else {
            throw new ClientException(_('Could not determine file\'s MIME type.'));
            return;
        }

        return new MediaFile($user, $filename, $mimetype);
    }

    static function fromFilehandle($fh, $user) {

        $stream = stream_get_meta_data($fh);

        if (!MediaFile::respectsQuota($user, filesize($stream['uri']))) {

            // Should never actually get here

            throw new ClientException(_('File exceeds user\'s quota.'));
            return;
        }

        $mimetype = MediaFile::getUploadedFileType($fh);

        $filename = null;

        if (isset($mimetype)) {

            $filename = File::filename($user->getProfile(), "email", $mimetype);

            $filepath = File::path($filename);

            $result = copy($stream['uri'], $filepath) && chmod($filepath, 0664);

            if (!$result) {
                throw new ClientException(_('File could not be moved to destination directory.' .
                    $stream['uri'] . ' ' . $filepath));
            }
        } else {
            throw new ClientException(_('Could not determine file\'s MIME type.'));
            return;
        }

        return new MediaFile($user, $filename, $mimetype);
    }

    static function getUploadedFileType($f) {
        require_once 'MIME/Type.php';

        $cmd = &PEAR::getStaticProperty('MIME_Type', 'fileCmd');
        $cmd = common_config('attachments', 'filecommand');

        $filetype = null;

        if (is_string($f)) {

            // assuming a filename

            $filetype = MIME_Type::autoDetect($f);
        } else {

            // assuming a filehandle

            $stream  = stream_get_meta_data($f);
            $filetype = MIME_Type::autoDetect($stream['uri']);
        }

        if (common_config('attachments', 'supported') === true || in_array($filetype, common_config('attachments', 'supported'))) {
            return $filetype;
        }
        $media = MIME_Type::getMedia($filetype);
        if ('application' !== $media) {
            $hint = sprintf(_(' Try using another %s format.'), $media);
        } else {
            $hint = '';
        }
        throw new ClientException(sprintf(
            _('%s is not a supported file type on this server.'), $filetype) . $hint);
    }

    static function respectsQuota($user, $filesize)
    {
        $file = new File;
        $result = $file->isRespectsQuota($user, $filesize);
        if ($result === true) {
            return true;
        } else {
            throw new ClientException($result);
        }
    }

}