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
|
<?php
/*
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2009, StatusNet, Inc.
*
* 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/>.
*/
/**
* @package FeedSubPlugin
* @maintainer Brion Vibber <brion@status.net>
*/
if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }
class FeedSubSettingsAction extends ConnectSettingsAction
{
protected $feedurl;
protected $preview;
protected $munger;
/**
* Title of the page
*
* @return string Title of the page
*/
function title()
{
return _m('Feed subscriptions');
}
/**
* Instructions for use
*
* @return instructions for use
*/
function getInstructions()
{
return _m('You can subscribe to feeds from other sites; ' .
'updates will appear in your personal timeline.');
}
/**
* Content area of the page
*
* Shows a form for associating a Twitter account with this
* StatusNet account. Also lets the user set preferences.
*
* @return void
*/
function showContent()
{
$user = common_current_user();
$profile = $user->getProfile();
$fuser = null;
$flink = Foreign_link::getByUserID($user->id, FEEDSUB_SERVICE);
if (!empty($flink)) {
$fuser = $flink->getForeignUser();
}
$this->elementStart('form', array('method' => 'post',
'id' => 'form_settings_feedsub',
'class' => 'form_settings',
'action' =>
common_local_url('feedsubsettings')));
$this->hidden('token', common_session_token());
$this->elementStart('fieldset', array('id' => 'settings_feeds'));
$this->elementStart('ul', 'form_data');
$this->elementStart('li', array('id' => 'settings_twitter_login_button'));
$this->input('feedurl', _('Feed URL'), $this->feedurl, _('Enter the URL of a PubSubHubbub-enabled feed'));
$this->elementEnd('li');
$this->elementEnd('ul');
if ($this->preview) {
$this->submit('subscribe', _m('Subscribe'));
} else {
$this->submit('validate', _m('Continue'));
}
$this->elementEnd('fieldset');
$this->elementEnd('form');
if ($this->preview) {
$this->previewFeed();
}
}
/**
* Handle posts to this form
*
* Based on the button that was pressed, muxes out to other functions
* to do the actual task requested.
*
* All sub-functions reload the form with a message -- success or failure.
*
* @return void
*/
function handlePost()
{
// CSRF protection
$token = $this->trimmed('token');
if (!$token || $token != common_session_token()) {
$this->showForm(_('There was a problem with your session token. '.
'Try again, please.'));
return;
}
if ($this->arg('validate')) {
$this->validateAndPreview();
} else if ($this->arg('subscribe')) {
$this->saveFeed();
} else {
$this->showForm(_('Unexpected form submission.'));
}
}
/**
* Set up and add a feed
*
* @return boolean true if feed successfully read
* Sends you back to input form if not.
*/
function validateFeed()
{
$feedurl = trim($this->arg('feedurl'));
if ($feedurl == '') {
$this->showForm(_m('Empty feed URL!'));
return;
}
$this->feedurl = $feedurl;
// Get the canonical feed URI and check it
try {
$discover = new FeedDiscovery();
$uri = $discover->discoverFromURL($feedurl);
} catch (FeedSubBadURLException $e) {
$this->showForm(_m('Invalid URL or could not reach server.'));
return false;
} catch (FeedSubBadResponseException $e) {
$this->showForm(_m('Cannot read feed; server returned error.'));
return false;
} catch (FeedSubEmptyException $e) {
$this->showForm(_m('Cannot read feed; server returned an empty page.'));
return false;
} catch (FeedSubBadHTMLException $e) {
$this->showForm(_m('Bad HTML, could not find feed link.'));
return false;
} catch (FeedSubNoFeedException $e) {
$this->showForm(_m('Could not find a feed linked from this URL.'));
return false;
} catch (FeedSubUnrecognizedTypeException $e) {
$this->showForm(_m('Not a recognized feed type.'));
return false;
} catch (FeedSubException $e) {
// Any new ones we forgot about
$this->showForm(_m('Bad feed URL.'));
return false;
}
$this->munger = $discover->feedMunger();
$this->feedinfo = $this->munger->feedInfo();
if ($this->feedinfo->huburi == '' && !common_config('feedsub', 'nohub')) {
$this->showForm(_m('Feed is not PuSH-enabled; cannot subscribe.'));
return false;
}
return true;
}
function saveFeed()
{
if ($this->validateFeed()) {
$this->preview = true;
$this->feedinfo = Feedinfo::ensureProfile($this->munger);
// If not already in use, subscribe to updates via the hub
if ($this->feedinfo->sub_start) {
common_log(LOG_INFO, __METHOD__ . ": double the fun! new sub for {$this->feedinfo->feeduri} last subbed {$this->feedinfo->sub_start}");
} else {
$ok = $this->feedinfo->subscribe();
common_log(LOG_INFO, __METHOD__ . ": sub was $ok");
if (!$ok) {
$this->showForm(_m('Feed subscription failed! Bad response from hub.'));
return;
}
}
// And subscribe the current user to the local profile
$user = common_current_user();
$profile = $this->feedinfo->getProfile();
if (!$profile) {
throw new ServerException("Feed profile was not saved properly.");
}
if ($this->feedinfo->isGroup()) {
if ($user->isMember($profile)) {
$this->showForm(_m('Already a member!'));
} elseif (Group_member::join($this->feedinfo->group_id, $user->id)) {
$this->showForm(_m('Joined remote group!'));
} else {
$this->showForm(_m('Remote group join failed!'));
}
} else {
if ($user->isSubscribed($profile)) {
$this->showForm(_m('Already subscribed!'));
} elseif ($user->subscribeTo($profile)) {
$this->showForm(_m('Feed subscribed!'));
} else {
$this->showForm(_m('Feed subscription failed!'));
}
}
}
}
function validateAndPreview()
{
if ($this->validateFeed()) {
$this->preview = true;
$this->showForm(_m('Previewing feed:'));
}
}
function previewFeed()
{
$feedinfo = $this->munger->feedinfo();
$notice = $this->munger->notice(0, true); // preview
if ($notice) {
$this->element('b', null, 'Preview of latest post from this feed:');
$item = new NoticeList($notice, $this);
$item->show();
} else {
$this->element('b', null, 'No posts in this feed yet.');
}
}
function showScripts()
{
parent::showScripts();
$this->autofocus('feedurl');
}
}
|
