xref: /plugin/recommend/action.php (revision 945a672e77330a21e244c20981fe0c4baec1a002)
1<?php
2
3class action_plugin_recommend extends DokuWiki_Action_Plugin {
4
5    public function register(Doku_Event_Handler $controller) {
6        foreach (array('ACTION_ACT_PREPROCESS', 'AJAX_CALL_UNKNOWN',
7                       'TPL_ACT_UNKNOWN') as $event) {
8            $controller->register_hook($event, 'BEFORE', $this, 'handle');
9        }
10        $controller->register_hook('MENU_ITEMS_ASSEMBLY', 'AFTER', $this, 'handleMenu');
11    }
12
13    public function handle(Doku_Event $event) {
14        if ($event->data !=='recommend') {
15            return;
16        }
17
18        $event->preventDefault();
19
20        if ($event->name === 'ACTION_ACT_PREPROCESS') {
21            return;
22        }
23
24        $event->stopPropagation();
25
26        global $INPUT;
27
28        // early output to trigger display msgs even via AJAX.
29        echo ' ';
30        tpl_flush();
31        if ($INPUT->server->str('REQUEST_METHOD') === 'POST') {
32            try {
33                $this->handlePost();
34                if ($event->name === 'AJAX_CALL_UNKNOWN') {
35                    $this->ajaxSuccess(); // To signal success to AJAX.
36                } else {
37                    msg($this->getLang('thanks'), 1);
38                }
39                return; // we're done here
40            } catch (\Exception $e) {
41                msg($e->getMessage(), -1);
42            }
43        }
44
45        echo $this->getForm();
46    }
47
48    public function handleMenu(Doku_Event $event)
49    {
50        if ($event->data['view'] !== 'page') return;
51
52        array_splice($event->data['items'], -1, 0, [new \dokuwiki\plugin\recommend\MenuItem()]);
53    }
54    /**
55     * Returns rendered form
56     *
57     * @return string
58     */
59    protected function getForm()
60    {
61        global $INPUT;
62
63        $id = getID(); // we may run in AJAX context
64        if ($id === '') throw new \RuntimeException('No ID given');
65
66        $form = new \dokuwiki\Form\Form([
67            'action' => wl($id, ['do' => 'recommend'], false, '&'),
68            'id' => 'plugin__recommend',
69        ]);
70        $form->setHiddenField('id', $id); // we need it for the ajax call
71
72        if ($INPUT->server->has('REMOTE_USER')) {
73            global $USERINFO;
74            $form->setHiddenField('s_name', $USERINFO['name']);
75            $form->setHiddenField('s_email', $USERINFO['mail']);
76        } else {
77            $form->addTextInput('s_name', $this->getLang('yourname'))->addClass('edit');
78            $form->addTextInput('s_email', $this->getLang('youremailaddress'))->addClass('edit');
79        }
80
81        $form->addTextInput('r_email', $this->getLang('recipients'))->addClass('edit');
82        $form->addTextInput('subject', $this->getLang('subject'))->addClass('edit');
83        $form->addTextarea('comment', $this->getLang('message'))->attr('rows', '8')->attr('cols', '10')->addClass('edit');
84
85        /** @var helper_plugin_captcha $captcha */
86        $captcha = plugin_load('helper', 'captcha');
87        if ($captcha) $form->addHTML($captcha->getHTML());
88
89        $form->addTagOpen('div')->addClass('buttons');
90        $form->addButton('submit', $this->getLang('send'))->attr('type', 'submit');
91        $form->addTagClose('div');
92
93        return $form->toHTML();
94    }
95
96    /**
97     * Handles form submission
98     *
99     * @throws Exception
100     */
101    protected function handlePost()
102    {
103        global $INPUT;
104
105        if (!checkSecurityToken()) {
106            throw new \Exception('Security token did not match');
107        }
108
109        // Captcha plugin
110        $helper = null;
111        if (@is_dir(DOKU_PLUGIN . 'captcha')) $helper = plugin_load('helper','captcha');
112        if (!is_null($helper) && $helper->isEnabled() && !$helper->check()) {
113            throw new \Exception($this->getLang('err_captcha'));
114        }
115
116        /* Validate input. */
117        $recipient = $INPUT->str('r_email');
118        if (!$recipient || !mail_isvalid($recipient)) {
119            throw new \Exception($this->getLang('err_recipient'));
120        }
121
122        if (!isset($_POST['s_email']) || !mail_isvalid($_POST['s_email'])) {
123            throw new \Exception($this->getLang('err_sendermail'));
124        }
125        if (!isset($_POST['s_name']) || trim($_POST['s_name']) === '') {
126            throw new \Exception($this->getLang('err_sendername'));
127        }
128        $s_name = $_POST['s_name'];
129        $sender = $s_name . ' <' . $_POST['s_email'] . '>';
130
131        $id = $INPUT->filter('cleanID')->str('id');
132        if ($id === '' || !page_exists($id)) throw new \Exception($this->getLang('err_page'));
133
134        $comment = $INPUT->str('comment');
135
136        /* Prepare mail text. */
137        $mailtext = file_get_contents(dirname(__FILE__).'/template.txt');
138
139        global $conf;
140        foreach (array('NAME' => $recipient,
141                       'PAGE' => $id,
142                       'SITE' => $conf['title'],
143                       'URL'  => wl($id, '', true),
144                       'COMMENT' => $comment,
145                       'AUTHOR' => $s_name) as $var => $val) {
146            $mailtext = str_replace('@' . $var . '@', $val, $mailtext);
147        }
148        /* Limit to two empty lines. */
149        $mailtext = preg_replace('/\n{4,}/', "\n\n\n", $mailtext);
150
151        $this->sendMail($recipient, $mailtext, $sender);
152
153        /** @var helper_plugin_recommend_log $log */
154        $log = new helper_plugin_recommend_log(date('Y-m'));
155        $log->writeEntry($id, $sender, $recipient, $comment);
156    }
157
158    /**
159     * @param string $recipient
160     * @param string $mailtext
161     * @param string $sender
162     * @return void
163     */
164    protected function sendMail($recipient, $mailtext, $sender)
165    {
166        global $INPUT;
167
168        $mailer = new Mailer();
169        $mailer->bcc($recipient);
170        $mailer->from($sender);
171
172        $subject = $INPUT->str('subject');
173        $mailer->subject($subject);
174        $mailer->setBody($mailtext);
175        $mailer->send();
176    }
177
178    /**
179     * show success message in ajax mode
180     */
181    protected function ajaxSuccess()
182    {
183        echo '<form id="plugin__recommend" accept-charset="utf-8" method="post" action="?do=recommend">';
184        echo '<div class="no">';
185        echo '<span class="ui-icon ui-icon-circle-check" style="float: left; margin: 0 7px 50px 0;"></span>';
186        echo '<p>' . $this->getLang('done') . '</p>';
187        echo '<button type="reset" class="button">' . $this->getLang('close') . '</button>';
188        echo '</div>';
189        echo '</form>';
190    }
191}
192