comment_notify.module 16.5 KB
Newer Older
1 2 3 4 5
<?php
// $Id$

/**
 * @file
6 7
 *
 * This module provides comment follow-up e-mail notification for anonymous and registered users.
8 9
 */

10 11
define('DEFAULT_MAILTEXT',
'Hi !name,
12

13
!commname has commented on: "!node_title"
14 15 16

The post is about
----
17
!node_teaser
18 19 20
----

You can view the comment at the following url
21
!comment_url
22

23 24
You can stop receiving emails when someone replies to this blog post,
by going to !link1
25 26 27

If you have auto-blog-following enabled in your account, you will receive emails like this for all replies to a blog post you commented on. You can disable this by logging in and going to your account settings or unchecking the flag at the time you post the comment.

28 29
You can set up blog-following feature for all future posts
by creating your own user with a few clicks here !uri/user/register
30 31 32

Thanks for your feedback,

33 34 35
Webmaster of !site
!mission
!uri');
36 37 38 39 40 41 42

/**
 * Implementation of hook_help().
 */
function comment_notify_help($section) {
  switch ($section) {
    case 'admin/modules#description':
43
      return t('Comment follow-up e-mail notification for anonymous and registered users.');
44 45 46 47
      break;
  }
}

48
/**
49 50 51
 * Insert our checkbox, and populate fields.
 * set validation hook.
 */
52
function comment_notify_form_alter($form_id, &$form) {
53 54
  global $user;

55 56
  // Only do alter the form if it's a comment form and the user has the permission to subscribe
  if ($form_id != 'comment_form' || !user_access('Subscribe to comments')) {
57 58
    return;
  }
59

60 61 62 63 64 65 66
  // Only add the checkbox if this is an enabled content type
  $node = node_load($form['nid']['#value']);
  $enabled_types = variable_get('comment_notify_node_types', array());
  if (!$enabled_types[$node->type]) {
    return;
  }  

67 68 69
  $op = isset($_POST['op']) ? $_POST['op'] : '';

  if ($op == t('Preview comment')) {
70
    drupal_set_message(t('ATTENTION: Your comment is NOT YET posted - please click the post button to confirm your post'));
71 72 73 74

    //extra submit button on top
    if (!form_get_errors() && ((variable_get('comment_preview', COMMENT_PREVIEW_REQUIRED) == COMMENT_PREVIEW_OPTIONAL) || ($op == t('Preview comment')) || ($op == t('Post comment')))) {
      $form['submitextra'] = array(
75 76 77 78 79
        '#type' => 'fieldset',
        '#title' => t('Comment is not posted yet - please click post button to confirm your post'),
        '#weight' => -99,
        '#collapsible' => FALSE
      );
80

81 82 83 84 85
      $form['submitextra']['submit'] = array(
        '#type' => 'submit',
        '#value' => t('Post comment'),
        '#weight' => -20
      );
86 87 88
    }
  }

89
  if ($user->uid == 0) {
90 91
    $form['notify'] = array(
      '#type' => 'checkbox',
92
      '#title' => t('Notify me of follow-up comments posted here.'),
93 94 95 96 97 98 99 100 101
      '#default_value' => ($user->uid != 0) ? $user->comment_notify_mailalert : variable_get('comment_notify_default_anon_mailalert', TRUE),
    );
  }
  elseif (variable_get('comment_notify_regged_checkbox', TRUE)) {
    $form['notify'] = array(
      '#type' => 'checkbox',
      '#title' => t('Notify me of follow-up comments posted here.'),
      '#default_value' => ($user->uid != 0) ? $user->comment_notify_mailalert : variable_get('comment_notify_default_anon_mailalert', TRUE),
      '#description' => t('You can change the default for this field in "Comment follow-up notification settings" on <a href="!uri">your account edit page</a>', array('!uri' => url('user/'. $user->uid .'/edit'))),
102 103 104
    );
  }
  else {
105
    $form['notify'] = array(
106 107
      '#type' => 'hidden',
      '#title' => t('Mail me updates to this comment.'),
108
      '#default_value' => $user->comment_notify_mailalert,
109 110 111
    );
  }

112
  if ($form['cid']['#value'] != '') {
113 114
    $notify = db_result(db_query("SELECT notify FROM {comment_notify} WHERE cid = %d", $form['cid']['#value']));
    $form['notify']['#default_value'] = $notify;
115 116
  }
}
117

118 119 120 121
/**
 * Implementation of hook_perm
 */
function comment_notify_perm() {
122
  return array('Administer comment notify', 'Subscribe to comments');
123
}
124 125 126 127 128 129 130 131 132

/**
 * Implementation of hook_menu().
 */
function comment_notify_menu($may_cache) {
  $items = array();
  global $user;

  if ($may_cache) {
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
    $items[] = array(
      'path' => 'admin/settings/comment_notify', 
      'title' => t('Comment Notify'), 
      'description' => t('Configure settings for e-mails about new comments.'), 
      'callback' => 'drupal_get_form', 
      'callback arguments' => array('comment_notify_settings'), 
      'access' => user_access('Administer comment notify'),   
    ); 
    $items[] = array(
      'path' => 'admin/settings/comment_notify/settings',
      'title' => t('Settings'),
      'callback' => 'drupal_get_form',
      'description' => t('Configure settings for e-mails about new comments.'),
      'callback arguments' => array('comment_notify_settings'),
      'access' => user_access('Administer comment notify'),
      'type' => MENU_DEFAULT_LOCAL_TASK,
    );
    $items[] = array(
      'path' => 'admin/settings/comment_notify/unsubscribe',
      'title' => t('Unsubscribe'),
      'weight' => 2,
      'callback' => 'drupal_get_form',
      'description' => t('Unsubscribe an email from all notifications.'),
      'callback arguments' => array('comment_notify_unsubscribe'),
      'access' => user_access('Administer comment notify'),
      'type' => MENU_LOCAL_TASK,
    );
160 161
  }
  else {
162 163 164 165 166 167 168
    $items[] = array(
      'path' => 'comment_notify',
      'title' => t('comment notify') ,
      'callback' => 'comment_notify_page',
      'access' => 1,
      'type' => MENU_CALLBACK
    );
169 170 171 172 173 174 175 176
  }
  return $items;
}

function comment_notify_page() {
  global $user;

  $breadcrumb = NULL;
177 178
  $op = $_POST['op'];
  $edit = $_POST['edit'];
179

180
  $page_content = ' ';
181 182 183 184 185 186 187
  if (empty($op)) {
    $op = arg(1);
  }
  $arg = arg(2);

  switch ($op) {
    case 'disable':
188
      $key = $arg;
189
      db_query("UPDATE {comment_notify} c SET c.notify = 0 WHERE notify_hash = '%s'", $arg);
190 191 192

      drupal_set_message(t('Your comment follow-up notification for this post was disabled. Thanks.'));
      $title = t('Disabled comment follow-up notification feature for this post.');
193 194 195 196 197
      break;
    default;
      $title = t('Comment Notify');
      break;
  }
198

199 200
  drupal_set_title($title);
  drupal_set_breadcrumb($breadcrumb);
201
  print theme('page', $page_content);
202 203
}

204
/**
205 206
 * save our data.
 */
207
function comment_notify_validate($form_id, $form_values) {
208 209 210 211 212

  if ($form_values['optin']) {
    foreach (array('optin') as $field) {
      $_SESSION['comment_notify'][$field] = $form_values[$field];
    }
213 214
  }
  else {
215 216 217 218 219 220
    foreach (array('optin') as $field) {
      unset($_SESSION['comment_notify'][$field]);
    }
  }
}

221 222
/**
 * implement hook_comment and check the publish status
223 224 225 226
 */
function comment_notify_comment($comment, $op) {
  global $user;

227
  switch ($op) {
228
    case 'publish':
229 230 231
      _comment_notify_mailalert($comment);
      break;
    case 'update':
232
      $sql = 'UPDATE {comment_notify} SET notify = %d WHERE cid = %d';
233
      db_query($sql, $comment['notify'], $comment['cid']);
234
      break;
235 236 237 238 239 240 241

    case 'insert':
      $mail = empty($comment['mail']) ? $user->mail : $comment['mail'];
      $md5_string = $mail . $user->uid . $comment['name'] . $comment['nid'];
      $sql = "INSERT INTO {comment_notify} (cid, notify, notify_hash) values (%d, %d, '%s')";
      db_query($sql, $comment['cid'], $comment['notify'], md5($md5_string));
      break;
242 243 244 245 246 247 248 249 250
  }
}

/**
 * Implementation of hook_user().
 */
function comment_notify_user($type, &$edit, &$user, $category = NULL) {
  switch ($type) {
    case 'form':
251
      if ($category == 'account') {
252 253
        $form = array();
        $form['comment_notify_settings'] = array(
254 255 256 257 258 259
          '#type' => 'fieldset',
          '#title' => t('Comment follow-up notification settings'),
          '#weight' => 4,
          '#collapsible' => TRUE
        );

260
        $form['comment_notify_settings']['comment_notify_mailalert'] = array(
261 262
          '#type' => 'checkbox',
          '#title' => t('Receive comment follow-up notification e-mails'),
263
          '#default_value' => isset($edit['comment_notify_mailalert']) ? $edit['comment_notify_mailalert'] : 0,
264 265
          '#description' => t('Check this box to receive e-mail notification for follow-up comments to comments you posted. You can later disable this on a post-by-post basis... so if you leave this to YES, you can still disable follow-up notifications for comments you don\'t want follow-up mails anymore - i.e. for very popular posts.')
        );
266 267 268

        return $form;
      }
269

270 271 272 273
      break;
  }
}

274 275
function _comment_notify_mailalert($comment) {
  $comment = (object) $comment;
276 277 278 279
  global $locale;
  global $base_url;

  $initial_locale = $locale;
280

281 282 283 284 285
  if (function_exists('locale')) {
    $languages = locale_supported_languages();
    $languages = $languages['name'];
  }

286 287 288 289 290 291 292 293 294 295 296 297 298
  $nid = $comment->nid;
  $cid = $comment->cid;
  $commname = $comment->name;
  $commtext = $comment->comment;
  $commsubj = $comment->subject;
  $node = node_load($nid);
  if (!isset($comment->mail)) {
    $comment_account = user_load(array('name' => $commname));
    $comment_mail = $comment_account->mail;
  }
  else {
    $comment_mail = $comment->mail;
  }
299

300
  $from = variable_get('site_mail', ini_get('sendmail_from'));
301 302 303
  $result = db_query('SELECT DISTINCT c.cid, u.init, c.uid, c.name, c.nid, c.mail cmail, u.mail umail, u.init uinit, c.uid, c.name, cn.notify_hash mymd5
    FROM {comments} c INNER JOIN {comment_notify} cn on c.cid = cn.cid LEFT OUTER JOIN {users} u ON c.uid = u.uid
    WHERE nid = %d  AND cn.notify = 1 AND c.status = 0', $nid
304
  );
305
  // TODO? the original big query had stuff making sure the mail was populated and contained .+@.+ Perhaps check for that here and set notify = 0 if that is the case for this cid
306

307 308
  $count = 0;
  $sent_to = array();
309

310
  while ($alert = db_fetch_object($result)) {
311 312 313 314
    $umail = empty($alert->umail) ? $alert->uinit : $alert->umail;
    $mail = empty($alert->cmail) ? $umail : $alert->cmail;

    if ($mail != $comment_mail && !in_array($mail, $sent_to) && $alert->uid != $comment->uid) {
315 316 317 318

      if (function_exists('locale') && $languages[$user->language]) {
        $locale = $user->language;
      }
319

320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342
      $subject = t('!site :: new comment for your post.', array('!site' => variable_get('site_name', 'drupal')));
      $message = t(
        variable_get('comment_notify_default_mailtext', DEFAULT_MAILTEXT),
        array(
          '!commname' => $commname,
          '!commtext' => $commtext,
          '!commsubj' => $commsubj,
          '!comment_url' => url('node/'. $nid, NULL, NULL, 1) .'#comment-'. $cid,
          '!node_title' =>  $node->title,
          '!node_teaser' => $node->teaser,
          '!mission' => variable_get('site_mission', ''),
          '!node_body' =>  $node->body,
          '!name' => $alert->name,
          '!site' => variable_get('site_name', 'drupal'),
          '!uri' => $base_url,
          '!uri_brief' => substr($base_url, strlen('http://')),
          '!date' => format_date(time()),
          '!login_uri' => url('user', NULL, NULL, 1),
          '!edit_uri' => url('user/'. $alert->uid .'/edit', NULL, NULL, 1),
          '!link1' => url('comment_notify/disable/'. $alert->mymd5, NULL, NULL, 1)
        )
      );

343
      drupal_mail('comment_notify_mail', $mail, $subject, $message, $from, array());
344
      $count++;
345
      $sent_to[] = $mail;
346

347 348
      if ($alert->uid != 0) {
        $watchdog_message = t('Notified: <a href="!url">@user_mail</a>', 
349
          array('!url' => url('user/'. $alert->uid .'/edit'), '@user_mail' => $mail)) ;
350

351 352
      }
      else {
353
        $watchdog_message = t('Notified @user_mail', array('@user_mail' => $mail));
354
      }
355

356 357 358
      // Add an entry to the watchdog log.
      watchdog('comment_notify', $watchdog_message,
        WATCHDOG_NOTICE, l(t('source comment'), 'node/'. $nid, NULL, NULL, 'comment-'. $alert->cid));
359

360 361
      // revert to previous (site default) locale
      $locale = $initial_locale;
362 363 364 365
    }
  }
}

366 367 368 369 370 371 372 373 374 375 376 377 378 379 380
/**
 * Callback for a form to unsubscribe users.
 */
function comment_notify_unsubscribe() {
  $form['comment_notify_unsubscribe'] = array();
  $form['comment_notify_unsubscribe']['email_to_unsubscribe'] = array(
    '#type' => 'textfield',
    '#title' => t('Email to unsubscribe'),
  );
  $form['comment_notify_unsubscribe']['submit'] = array(
    '#type' => 'submit',
    '#value' => t('Unsubscribe this e-mail'),
  );
  return $form;
}
381

382 383 384 385 386 387 388 389
/** 
 * Actual unsubscribe of users. 
 */
function comment_notify_unsubscribe_submit($form_id, $form_values) {
  $email = trim($form_values['email_to_unsubscribe']);
  // If they have a uid, use that, otherwise update comments directly
  $result = db_result(db_query_range("SELECT uid FROM {users} WHERE mail = '%s'", $email, 0, 1)); 
  if ($result > 0) {
390 391
    $comments = db_result(db_query("SELECT COUNT(1) FROM {comments} c INNER JOIN {comment_notify} cn ON c.cid = cn.cid WHERE c.uid = %d AND cn.notify = 1", $result));
    db_query("UPDATE {comment_notify} cn INNER JOIN {comments} c ON cn.cid = c.cid SET cn.notify = 0 WHERE c.uid = %d", $result);
392 393
  }
  else {
394 395
    $comments = db_result(db_query("SELECT COUNT(1) FROM {comments} c INNER JOIN {comment_notify} cn ON c.cid = cn.cid WHERE c.mail = '%s' AND cn.notify = 1", $email));
    db_query("UPDATE {comment_notify} cn INNER JOIN {comments} c ON cn.cid = c.cid SET cn.notify = 0 WHERE c.mail = '%s'", $email);
396 397 398 399 400 401 402 403 404 405
  }
  // Update the admin about the state of this comment notification subscription.
  if ($comments == 0) {
    drupal_set_message(t("There were no active comment notifications for that email."));
  }
  else {
    drupal_set_message(format_plural($comments, "Email unsubscribed from 1 comment notification.",
      "Email unsubscribed from @count comment notifications."));
  }
}
406

407 408 409
/*
 * Page callback for administrative settings form.
 */
410 411
function comment_notify_settings() {
  $form['comment_notify_settings'] = array();
412 413 414 415 416 417 418 419 420 421 422 423 424 425 426

  // Only perform comment_notify for certain node types (default, all)
  foreach (node_get_types('names') as $type => $name) {
    $checkboxes[$type] = check_plain($name);
    $default[] = $type;
  }

  $form['comment_notify_settings']['comment_notify_node_types'] = array(
    '#type' => 'checkboxes',
    '#title' => t('Content Types To Enable for Comment Notify'),
    '#default_value' => variable_get('comment_notify_node_types', $default),
    '#options' => $checkboxes,
    '#description' => t('Comments on content types enabled here will have the option of comment notification.'),
  );

427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447
  $form['comment_notify_settings']['comment_notify_regged_checkbox'] = array(
    '#type' => 'checkbox',
    '#title' => t('Let registered users select notification on a node basis'),
    '#return_value' => 1,
    '#default_value' => variable_get('comment_notify_regged_checkbox', TRUE),
    '#description' => t('letting registered users select/unselect if they want to be notified. If this is disabled, this setting is propagated from their user profile, hence reducing and clutter and confusion')
  );

  $form['comment_notify_settings']['comment_notify_default_anon_mailalert'] = array(
    '#type' => 'checkbox',
    '#title' => t('Fill checkbox for follow-up with YES by default for anonymous users, so they will get an email alert for follow-up comments if they do not uncheck it then'),
    '#return_value' => 1,
    '#default_value' => variable_get('comment_notify_default_anon_mailalert', TRUE),
    '#description' => t('This flag presets the flag for the follow-up notification on the form that anon users will see when posting a comment')
  );

  $form['comment_notify_settings']['comment_notify_default_mailtext'] = array(
    '#type' => 'textarea',
    '#title' => t('Default mail text for sending out the notifications.'),
    '#description' => t(
      'You can use the following variables to be replaced:
448
      <ul>
449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473
      <li>!commname = the username who posted the comment
      <li>!commtext = the text of the posted comment
      <li>!commsubj = the subject of the posted comment
      <li>!comment_url = the full url of the post and comment - note: if you have paging enabled, this does not work correct - set your max comments per page so that all fit on one page or reverse order them
      <li>!node_title = the title of the node that was commented on
      <li>!node_teaser = the teaser of the node that was commented on
      <li>!node_body = the body of the node that was commented on
      <li>!mission = site_mission text
      <li>!name = username receiving the alert
      <li>!site = your site
      <li>!uri = base_url of site
      <li>!uri_brief = base_url of site w/o http
      <li>!date = the current time
      <li>!login_uri  uri to login the user
      <li>!edit_uri = uri to edit user profile
      <li>!link1 the QUICKLINK to disable future follow-up otifications for the user
      </ul>'
    ),
    '#default_value' => variable_get('comment_notify_default_mailtext', t(DEFAULT_MAILTEXT)),
    '#return_value' => 1,
    '#cols' => 80,
    '#rows' => 15
  );

  return system_settings_form($form);
474
}