summaryrefslogtreecommitdiff
path: root/actions/newnotice.php
blob: 29b748dd1ac509cd2e9ca84cbc340217196653a0 (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
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
<?php
/**
 * Laconica, the distributed open-source microblogging tool
 *
 * Handler for posting new notices
 *
 * 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  Personal
 * @package   Laconica
 * @author    Evan Prodromou <evan@controlyourself.ca>
 * @author    Zach Copley <zach@controlyourself.ca>
 * @author    Sarven Capadisli <csarven@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);
}

require_once INSTALLDIR.'/lib/noticelist.php';

/**
 * Action for posting new notices
 *
 * @category Personal
 * @package  Laconica
 * @author   Evan Prodromou <evan@controlyourself.ca>
 * @author   Zach Copley <zach@controlyourself.ca>
 * @author   Sarven Capadisli <csarven@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 NewnoticeAction extends Action
{
    /**
     * Error message, if any
     */

    var $msg = null;

    /**
     * Title of the page
     *
     * Note that this usually doesn't get called unless something went wrong
     *
     * @return string page title
     */

    function title()
    {
        return _('New notice');
    }

    /**
     * Handle input, produce output
     *
     * Switches based on GET or POST method. On GET, shows a form
     * for posting a notice. On POST, saves the results of that form.
     *
     * Results may be a full page, or just a single notice list item,
     * depending on whether AJAX was requested.
     *
     * @param array $args $_REQUEST contents
     *
     * @return void
     */

    function handle($args)
    {
        if (!common_logged_in()) {
            $this->clientError(_('Not logged in.'));
        } else if ($_SERVER['REQUEST_METHOD'] == 'POST') {
            // check for this before token since all POST and FILES data
            // is losts when size is exceeded
            if (empty($_POST) && $_SERVER['CONTENT_LENGTH']) {
                $this->clientError(sprintf(_('The server was unable to handle ' .
                    'that much POST data (%s bytes) due to its current configuration.'),
                    $_SERVER['CONTENT_LENGTH']));
            }
            parent::handle($args);

            // CSRF protection
            $token = $this->trimmed('token');
            if (!$token || $token != common_session_token()) {
                $this->clientError(_('There was a problem with your session token. '.
                                     'Try again, please.'));
            }
            try {
                $this->saveNewNotice();
            } catch (Exception $e) {
                $this->showForm($e->getMessage());
                return;
            }
        } else {
            $this->showForm();
        }
    }

    function isSupportedFileType() {
        require_once 'MIME/Type.php';

        $filetype = MIME_Type::autoDetect($_FILES['attach']['tmp_name']);
        if (in_array($filetype, common_config('attachments', 'supported'))) {
            return true;
        }
        $media = MIME_Type::getMedia($filetype);
        if ('application' !== $media) {
            $hint = sprintf(_(' Try using another %s format.'), $media);
        } else {
            $hint = '';
        }
        $this->clientError(sprintf(
            _('%s is not a supported filetype on this server.'), $filetype) . $hint);
    }

    function isRespectsQuota($user) {
        if ($_FILES['attach']['size'] > common_config('attachments', 'file_quota')) {
            $this->clientError(sprintf(_('No file may be larger than %d bytes ' .
                'and the file you sent was %d bytes. Try to upload a smaller version.'),
                common_config('attachments', 'file_quota'), $_FILES['attach']['size']));
        }

        $query = "select sum(size) as total from file join file_to_post on file_to_post.file_id = file.id join notice on file_to_post.post_id = notice.id where profile_id = {$user->id} and file.url like '%/notice/%/file'";
        $file = new File;
        $file->query($query);
        $file->fetch();
        $total = $file->total + $_FILES['attach']['size'];
        if ($total > common_config('attachments', 'user_quota')) {
            $this->clientError(sprintf(_('A file this large would exceed your user quota of %d bytes.'), common_config('attachments', 'user_quota')));
        }

        $query .= ' month(modified) = month(now()) and year(modified) = year(now())';
        $file2 = new File;
        $file2->query($query);
        $file2->fetch();
        $total2 = $file2->total + $_FILES['attach']['size'];
        if ($total2 > common_config('attachments', 'monthly_quota')) {
            $this->clientError(sprintf(_('A file this large would exceed your monthly quota of %d bytes.'), common_config('attachments', 'monthly_quota')));
        }
        return true;
    }

    function isValidFileAttached($user) {
        return isset($_FILES['attach']['error'])
            && ($_FILES['attach']['error'] === UPLOAD_ERR_OK)
            && $this->isSupportedFileType()
            && $this->isRespectsQuota($user);
    }

    /**
     * Save a new notice, based on arguments
     *
     * If successful, will show the notice, or return an Ajax-y result.
     * If not, it will show an error message -- possibly Ajax-y.
     *
     * Also, if the notice input looks like a command, it will run the
     * command and show the results -- again, possibly ajaxy.
     *
     * @return void
     */

    function saveNewNotice()
    {
        $user = common_current_user();
        assert($user); // XXX: maybe an error instead...
        $content = $this->trimmed('status_textarea');

        if (!$content) {
            $this->clientError(_('No content!'));
        } else {
            $content_shortened = common_shorten_links($content);
            if (mb_strlen($content_shortened) > 140) {
                $this->clientError(_('That\'s too long. '.
                                     'Max notice size is 140 chars.'));
            }
        }

        $inter = new CommandInterpreter();

        $cmd = $inter->handle_command($user, $content_shortened);

        if ($cmd) {
            if ($this->boolean('ajax')) {
                $cmd->execute(new AjaxWebChannel($this));
            } else {
                $cmd->execute(new WebChannel($this));
            }
            return;
        }

        $replyto = $this->trimmed('inreplyto');
        #If an ID of 0 is wrongly passed here, it will cause a database error,
        #so override it...
        if ($replyto == 0) {
            $replyto = 'false';
        }

        switch ($_FILES['attach']['error']) {
            case UPLOAD_ERR_NO_FILE:
                // no file uploaded
                // nothing to do
                break;

             case UPLOAD_ERR_OK:
                // file was uploaded alright
                // lets check if we really support its format
                // and it doesn't go over quotas


                if (!$this->isValidFileAttached($user)) {
                    die('clientError() should trigger an exception before reaching here.');
                }
                break;

            case UPLOAD_ERR_INI_SIZE:
                $this->clientError(_('The uploaded file exceeds the upload_max_filesize directive in php.ini.'));

            case UPLOAD_ERR_FORM_SIZE:
                $this->clientError(_('The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form.'));

            case UPLOAD_ERR_PARTIAL:
                $this->clientError(_('The uploaded file was only partially uploaded.'));

            case  UPLOAD_ERR_NO_TMP_DIR:
                $this->clientError(_('Missing a temporary folder.'));

            case UPLOAD_ERR_CANT_WRITE:
                $this->clientError(_('Failed to write file to disk.'));

            case UPLOAD_ERR_EXTENSION:
                $this->clientError(_('File upload stopped by extension.'));

            default:
                die('Should never reach here.');
        }

        $notice = Notice::saveNew($user->id, $content_shortened, 'web', 1,
                                  ($replyto == 'false') ? null : $replyto);

        if (is_string($notice)) {
            $this->clientError($notice);
        }

        $this->storeFile($notice);
        $this->saveUrls($notice);
        common_broadcast_notice($notice);

        if ($this->boolean('ajax')) {
            $this->startHTML('text/xml;charset=utf-8');
            $this->elementStart('head');
            $this->element('title', null, _('Notice posted'));
            $this->elementEnd('head');
            $this->elementStart('body');
            $this->showNotice($notice);
            $this->elementEnd('body');
            $this->elementEnd('html');
        } else {
            $returnto = $this->trimmed('returnto');

            if ($returnto) {
                $url = common_local_url($returnto,
                                        array('nickname' => $user->nickname));
            } else {
                $url = common_local_url('shownotice',
                                        array('notice' => $notice->id));
            }
            common_redirect($url, 303);
        }
    }

    function storeFile($notice) {
        if (UPLOAD_ERR_NO_FILE === $_FILES['attach']['error']) return;
        $filename = basename($_FILES['attach']['name']);
        $destination = "file/{$notice->id}-$filename";
        if (move_uploaded_file($_FILES['attach']['tmp_name'], INSTALLDIR . "/$destination")) {
            $file = new File;
            $file->url = common_local_url('file', array('notice' => $notice->id));
            $file->size = filesize(INSTALLDIR . "/$destination");
            $file->date = time();
            $file->mimetype = $_FILES['attach']['type'];
            if ($file_id = $file->insert()) {
                $file_redir = new File_redirection;
                $file_redir->url = common_path($destination);
                $file_redir->file_id = $file_id;
                $file_redir->insert();

                $f2p = new File_to_post;
                $f2p->file_id = $file_id; 
                $f2p->post_id = $notice->id; 
                $f2p->insert();
            } else {
                $this->clientError(_('There was a database error while saving your file. Please try again.'));
            }
        }
    }


    /** save all urls in the notice to the db
     *
     * follow redirects and save all available file information
     * (mimetype, date, size, oembed, etc.)
     *
     * @param class $notice Notice to pull URLs from
     *
     * @return void
     */
    function saveUrls($notice, $uploaded = null) {
        common_replace_urls_callback($notice->content, array($this, 'saveUrl'), $notice->id);
    }

    function saveUrl($data) {
        list($url, $notice_id) = $data;
        $zzz = File::processNew($url, $notice_id);
    }

    /**
     * Show an Ajax-y error message
     *
     * Goes back to the browser, where it's shown in a popup.
     *
     * @param string $msg Message to show
     *
     * @return void
     */

    function ajaxErrorMsg($msg)
    {
        $this->startHTML('text/xml;charset=utf-8', true);
        $this->elementStart('head');
        $this->element('title', null, _('Ajax Error'));
        $this->elementEnd('head');
        $this->elementStart('body');
        $this->element('p', array('id' => 'error'), $msg);
        $this->elementEnd('body');
        $this->elementEnd('html');
    }

    /**
     * Formerly page output
     *
     * This used to be the whole page output; now that's been largely
     * subsumed by showPage. So this just stores an error message, if
     * it was passed, and calls showPage.
     *
     * Note that since we started doing Ajax output, this page is rarely
     * seen.
     *
     * @param string $msg An error message, if any
     *
     * @return void
     */

    function showForm($msg=null)
    {
        if ($msg && $this->boolean('ajax')) {
            $this->ajaxErrorMsg($msg);
            return;
        }

        $this->msg = $msg;
        $this->showPage();
    }

    /**
     * Overload for replies or bad results
     *
     * We show content in the notice form if there were replies or results.
     *
     * @return void
     */

    function showNoticeForm()
    {
        $content = $this->trimmed('status_textarea');
        if (!$content) {
            $replyto = $this->trimmed('replyto');
            $profile = Profile::staticGet('nickname', $replyto);
            if ($profile) {
                $content = '@' . $profile->nickname . ' ';
            }
        }

        $notice_form = new NoticeForm($this, '', $content);
        $notice_form->show();
    }

    /**
     * Show an error message
     *
     * Shows an error message if there is one.
     *
     * @return void
     *
     * @todo maybe show some instructions?
     */

    function showPageNotice()
    {
        if ($this->msg) {
            $this->element('p', array('id' => 'error'), $this->msg);
        }
    }

    /**
     * Output a notice
     *
     * Used to generate the notice code for Ajax results.
     *
     * @param Notice $notice Notice that was saved
     *
     * @return void
     */

    function showNotice($notice)
    {
        $nli = new NoticeListItem($notice, $this);
        $nli->show();
    }
}