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
|
<?php
namespace dokuwiki\Action;
use dokuwiki\Action\Exception\ActionAbort;
use dokuwiki\Action\Exception\ActionDisabledException;
/**
* Class Subscribe
*
* E-Mail subscription handling
*
* @package dokuwiki\Action
*/
class Subscribe extends AbstractUserAction {
/** @inheritdoc */
public function minimumPermission() {
return AUTH_READ;
}
/** @inheritdoc */
public function checkPreconditions() {
parent::checkPreconditions();
global $conf;
if(isset($conf['subscribers']) && !$conf['subscribers']) throw new ActionDisabledException();
}
/** @inheritdoc */
public function preProcess() {
try {
$this->handleSubscribeData();
} catch(ActionAbort $e) {
throw $e;
} catch(\Exception $e) {
msg($e->getMessage(), -1);
}
}
/** @inheritdoc */
public function tplContent() {
tpl_subscribe();
}
/**
* Handle page 'subscribe'
*
* @author Adrian Lang <lang@cosmocode.de>
* @throws \Exception if (un)subscribing fails
* @throws ActionAbort when (un)subscribing worked
*/
protected function handleSubscribeData() {
global $lang;
global $INFO;
global $INPUT;
// get and preprocess data.
$params = array();
foreach(array('target', 'style', 'action') as $param) {
if($INPUT->has("sub_$param")) {
$params[$param] = $INPUT->str("sub_$param");
}
}
// any action given? if not just return and show the subscription page
if(empty($params['action']) || !checkSecurityToken()) return;
// Handle POST data, may throw exception.
trigger_event('ACTION_HANDLE_SUBSCRIBE', $params, array($this, 'handlePostData'));
$target = $params['target'];
$style = $params['style'];
$action = $params['action'];
// Perform action.
$sub = new \Subscription();
if($action == 'unsubscribe') {
$ok = $sub->remove($target, $INPUT->server->str('REMOTE_USER'), $style);
} else {
$ok = $sub->add($target, $INPUT->server->str('REMOTE_USER'), $style);
}
if($ok) {
msg(
sprintf(
$lang["subscr_{$action}_success"], hsc($INFO['userinfo']['name']),
prettyprint_id($target)
), 1
);
throw new ActionAbort('redirect');
} else {
throw new \Exception(
sprintf(
$lang["subscr_{$action}_error"],
hsc($INFO['userinfo']['name']),
prettyprint_id($target)
)
);
}
}
/**
* Validate POST data
*
* Validates POST data for a subscribe or unsubscribe request. This is the
* default action for the event ACTION_HANDLE_SUBSCRIBE.
*
* @author Adrian Lang <lang@cosmocode.de>
*
* @param array &$params the parameters: target, style and action
* @throws \Exception
*/
public function handlePostData(&$params) {
global $INFO;
global $lang;
global $INPUT;
// Get and validate parameters.
if(!isset($params['target'])) {
throw new \Exception('no subscription target given');
}
$target = $params['target'];
$valid_styles = array('every', 'digest');
if(substr($target, -1, 1) === ':') {
// Allow “list” subscribe style since the target is a namespace.
$valid_styles[] = 'list';
}
$style = valid_input_set(
'style', $valid_styles, $params,
'invalid subscription style given'
);
$action = valid_input_set(
'action', array('subscribe', 'unsubscribe'),
$params, 'invalid subscription action given'
);
// Check other conditions.
if($action === 'subscribe') {
if($INFO['userinfo']['mail'] === '') {
throw new \Exception($lang['subscr_subscribe_noaddress']);
}
} elseif($action === 'unsubscribe') {
$is = false;
foreach($INFO['subscribed'] as $subscr) {
if($subscr['target'] === $target) {
$is = true;
}
}
if($is === false) {
throw new \Exception(
sprintf(
$lang['subscr_not_subscribed'],
$INPUT->server->str('REMOTE_USER'),
prettyprint_id($target)
)
);
}
// subscription_set deletes a subscription if style = null.
$style = null;
}
$params = compact('target', 'style', 'action');
}
}
|