user.module 95.1 KB
Newer Older
Dries's avatar
 
Dries committed
1 2 3
<?php
// $Id$

Dries's avatar
 
Dries committed
4 5 6 7 8
/**
 * @file
 * Enables the user registration and login system.
 */

Dries's avatar
Dries committed
9 10 11
/**
 * Invokes hook_user() in every module.
 *
12
 * We cannot use module_invoke() for this, because the arguments need to
Dries's avatar
Dries committed
13 14
 * be passed by reference.
 */
15
function user_module_invoke($type, &$array, &$user, $category = NULL) {
Dries's avatar
 
Dries committed
16 17
  foreach (module_list() as $module) {
    $function = $module .'_user';
18 19 20
    if (function_exists($function)) {
      $function($type, $array, $user, $category);
    }
Dries's avatar
 
Dries committed
21 22 23
  }
}

Dries's avatar
 
Dries committed
24
function user_external_load($authname) {
Dries's avatar
 
Dries committed
25
  $result = db_query("SELECT uid FROM {authmap} WHERE authname = '%s'", $authname);
Dries's avatar
 
Dries committed
26

Dries's avatar
 
Dries committed
27 28
  if ($user = db_fetch_object($result)) {
    return user_load($user);
Dries's avatar
 
Dries committed
29 30 31 32 33 34
  }
  else {
    return 0;
  }
}

Dries's avatar
Dries committed
35 36 37 38 39
/**
 * Fetch a user object.
 *
 * @param $array
 *   An associative array of attributes to search for in selecting the
40
 *   user, such as user name or e-mail address.
Dries's avatar
Dries committed
41 42
 *
 * @return
43
 *   A fully-loaded $user object upon successful user load or FALSE if user cannot be loaded.
Dries's avatar
Dries committed
44
 */
Dries's avatar
 
Dries committed
45
function user_load($array = array()) {
Dries's avatar
Dries committed
46
  // Dynamically compose a SQL query:
47
  $query = array();
48
  $params = array();
49

Dries's avatar
 
Dries committed
50
  foreach ($array as $key => $value) {
51 52
    if ($key == 'uid' || $key == 'status') {
      $query[] = "$key = %d";
53
      $params[] = $value;
54
    }
55 56 57 58
    else if ($key == 'pass') {
      $query[] = "pass = '%s'";
      $params[] = md5($value);
    }
Dries's avatar
 
Dries committed
59
    else {
60
      $query[]= "LOWER($key) = LOWER('%s')";
61
      $params[] = $value;
Dries's avatar
 
Dries committed
62 63
    }
  }
64
  $result = db_query('SELECT * FROM {users} u WHERE ' . implode(' AND ', $query), $params);
Dries's avatar
 
Dries committed
65

66 67 68
  if (db_num_rows($result)) {
    $user = db_fetch_object($result);
    $user = drupal_unpack($user);
Dries's avatar
 
Dries committed
69

70
    $user->roles = array();
71 72 73 74 75 76
    if ($user->uid) {
      $user->roles[DRUPAL_AUTHENTICATED_RID] = 'authenticated user';
    }
    else {
      $user->roles[DRUPAL_ANONYMOUS_RID] = 'anonymous user';
    }
77 78 79 80
    $result = db_query('SELECT r.rid, r.name FROM {role} r INNER JOIN {users_roles} ur ON ur.rid = r.rid WHERE ur.uid = %d', $user->uid);
    while ($role = db_fetch_object($result)) {
      $user->roles[$role->rid] = $role->name;
    }
81
    user_module_invoke('load', $array, $user);
82 83
  }
  else {
84
    $user = FALSE;
Dries's avatar
 
Dries committed
85
  }
Dries's avatar
 
Dries committed
86 87 88 89

  return $user;
}

90
/**
91
 * Save changes to a user account or add a new user.
92 93
 *
 * @param $account
94 95
 *   The $user object for the user to modify or add. If $user->uid is
 *   omitted, a new user will be added.
96 97 98
 *
 * @param $array
 *   An array of fields and values to save. For example array('name' => 'My name');
99
 *   Setting a field to null deletes it from the data column.
100 101 102 103
 *
 * @param $category
 *   (optional) The category for storing profile information in.
 */
104
function user_save($account, $array = array(), $category = 'account') {
Dries's avatar
Dries committed
105
  // Dynamically compose a SQL query:
Kjartan's avatar
Kjartan committed
106
  $user_fields = user_fields();
Dries's avatar
 
Dries committed
107
  if ($account->uid) {
108
    user_module_invoke('update', $array, $account, $category);
Dries's avatar
 
Dries committed
109

Dries's avatar
Dries committed
110
    $data = unserialize(db_result(db_query('SELECT data FROM {users} WHERE uid = %d', $account->uid)));
Dries's avatar
 
Dries committed
111
    foreach ($array as $key => $value) {
112
      if ($key == 'pass' && !empty($value)) {
Dries's avatar
 
Dries committed
113 114
        $query .= "$key = '%s', ";
        $v[] = md5($value);
Dries's avatar
 
Dries committed
115
      }
116
      else if ((substr($key, 0, 4) !== 'auth') && ($key != 'pass')) {
Kjartan's avatar
Kjartan committed
117
        if (in_array($key, $user_fields)) {
118
          // Save standard fields
Dries's avatar
 
Dries committed
119 120
          $query .= "$key = '%s', ";
          $v[] = $value;
Dries's avatar
 
Dries committed
121
        }
Dries's avatar
 
Dries committed
122
        else if ($key != 'roles') {
123
          // Roles is a special case: it used below.
124 125 126 127 128 129
          if ($value === null) {
            unset($data[$key]);
          }
          else {
            $data[$key] = $value;
          }
Dries's avatar
 
Dries committed
130
        }
Dries's avatar
 
Dries committed
131 132
      }
    }
133
    $query .= "data = '%s' ";
Dries's avatar
 
Dries committed
134
    $v[] = serialize($data);
Dries's avatar
 
Dries committed
135

136
    db_query("UPDATE {users} SET $query WHERE uid = %d", array_merge($v, array($account->uid)));
Dries's avatar
 
Dries committed
137

138
    // Reload user roles if provided
139
    if (is_array($array['roles'])) {
Dries's avatar
Dries committed
140
      db_query('DELETE FROM {users_roles} WHERE uid = %d', $account->uid);
Dries's avatar
 
Dries committed
141

142
      foreach (array_keys($array['roles']) as $rid) {
143 144 145
        if (!in_array($rid, array(DRUPAL_ANONYMOUS_RID, DRUPAL_AUTHENTICATED_RID))) {
          db_query('INSERT INTO {users_roles} (uid, rid) VALUES (%d, %d)', $account->uid, $rid);
        }
146
      }
Dries's avatar
 
Dries committed
147 148
    }

149
    // Delete a blocked user's sessions to kick them if they are online.
150
    if (isset($array['status']) && $array['status'] == 0) {
151
      db_query('DELETE FROM {sessions} WHERE uid = %d', $account->uid);
152 153
    }

154
    // Refresh user object
Dries's avatar
 
Dries committed
155
    $user = user_load(array('uid' => $account->uid));
156
    user_module_invoke('after_update', $array, $user, $category);
Dries's avatar
 
Dries committed
157 158
  }
  else {
Dries's avatar
Dries committed
159
    $array['uid'] = db_next_id('{users}_uid');
Dries's avatar
 
Dries committed
160

161 162 163 164
    if (!isset($array['created'])) {    // Allow 'created' to be set by hook_auth
      $array['created'] = time();
    }

165 166 167
    // Note, we wait with saving the data column to prevent module-handled
    // fields from being saved there. We cannot invoke hook_user('insert') here
    // because we don't have a fully initialized user object yet.
Dries's avatar
 
Dries committed
168
    foreach ($array as $key => $value) {
169 170 171 172
      switch($key) {
        case 'pass':
          $fields[] = $key;
          $values[] = md5($value);
Dries's avatar
 
Dries committed
173
          $s[] = "'%s'";
Dries's avatar
Dries committed
174
          break;
175 176 177 178 179 180 181 182 183 184 185 186 187 188
        case 'uid':        case 'mode':     case 'sort':
        case 'threshold':  case 'created':  case 'access':
        case 'login':      case 'status':
          $fields[] = $key;
          $values[] = $value;
          $s[] = "%d";
          break;
        default:
          if (substr($key, 0, 4) !== 'auth' && in_array($key, $user_fields)) {
            $fields[] = $key;
            $values[] = $value;
            $s[] = "'%s'";
          }
          break;
Dries's avatar
 
Dries committed
189 190
      }
    }
Dries's avatar
Dries committed
191
    db_query('INSERT INTO {users} ('. implode(', ', $fields) .') VALUES ('. implode(', ', $s) .')', $values);
Dries's avatar
 
Dries committed
192

193 194
    // Build the initial user object.
    $user = user_load(array('uid' => $array['uid']));
Dries's avatar
 
Dries committed
195

196 197 198 199 200
    user_module_invoke('insert', $array, $user, $category);

    // Build and save the serialized data field now
    $data = array();
    foreach ($array as $key => $value) {
201
      if ((substr($key, 0, 4) !== 'auth') && ($key != 'roles') && (!in_array($key, $user_fields)) && ($value !== null)) {
202 203 204 205 206
        $data[$key] = $value;
      }
    }
    db_query("UPDATE {users} SET data = '%s' WHERE uid = %d", serialize($data), $user->uid);

207 208 209 210 211 212 213 214
    // Save user roles (delete just to be safe).
    db_query('DELETE FROM {users_roles} WHERE uid = %d', $array['uid']);
    foreach (array_keys($array['roles']) as $rid) {
      if (!in_array($rid, array(DRUPAL_ANONYMOUS_RID, DRUPAL_AUTHENTICATED_RID))) {
        db_query('INSERT INTO {users_roles} (uid, rid) VALUES (%d, %d)', $array['uid'], $rid);
      }
    }

215 216
    // Build the finished user object.
    $user = user_load(array('uid' => $array['uid']));
Dries's avatar
 
Dries committed
217 218
  }

219
  // Save distributed authentication mappings
220
  $authmaps = array();
Dries's avatar
 
Dries committed
221
  foreach ($array as $key => $value) {
Dries's avatar
 
Dries committed
222
    if (substr($key, 0, 4) == 'auth') {
Dries's avatar
 
Dries committed
223 224 225
      $authmaps[$key] = $value;
    }
  }
226
  if (sizeof($authmaps) > 0) {
Dries's avatar
 
Dries committed
227
    user_set_authmaps($user, $authmaps);
Dries's avatar
 
Dries committed
228 229 230 231 232
  }

  return $user;
}

Dries's avatar
Dries committed
233 234 235
/**
 * Verify the syntax of the given name.
 */
Dries's avatar
 
Dries committed
236
function user_validate_name($name) {
237
  if (!strlen($name)) return t('You must enter a username.');
Dries's avatar
Dries committed
238 239 240
  if (substr($name, 0, 1) == ' ') return t('The username cannot begin with a space.');
  if (substr($name, -1) == ' ') return t('The username cannot end with a space.');
  if (ereg('  ', $name)) return t('The username cannot contain multiple spaces in a row.');
241
  if (ereg("[^\x80-\xF7 [:alnum:]@_.-]", $name)) return t('The username contains an illegal character.');
242 243 244 245 246 247 248 249 250 251 252
  if (preg_match('/[\x{80}-\x{A0}'.          // Non-printable ISO-8859-1 + NBSP
                   '\x{AD}'.                 // Soft-hyphen
                   '\x{2000}-\x{200F}'.      // Various space characters
                   '\x{2028}-\x{202F}'.      // Bidirectional text overrides
                   '\x{205F}-\x{206F}'.      // Various text hinting characters
                   '\x{FEFF}'.               // Byte order mark
                   '\x{FF01}-\x{FF60}'.      // Full-width latin
                   '\x{FFF9}-\x{FFFD}]/u',   // Replacement characters
                   $name)) {
    return t('The username contains an illegal character.');
  }
Dries's avatar
Dries committed
253
  if (ereg('@', $name) && !eregi('@([0-9a-z](-?[0-9a-z])*.)+[a-z]{2}([zmuvtg]|fo|me)?$', $name)) return t('The username is not a valid authentication ID.');
254
  if (strlen($name) > 56) return t('The username %name is too long: it must be less than 56 characters.', array('%name' => theme('placeholder', $name)));
Dries's avatar
 
Dries committed
255 256 257
}

function user_validate_mail($mail) {
Dries's avatar
Dries committed
258
  if (!$mail) return t('You must enter an e-mail address.');
259
  if (!valid_email_address($mail)) {
260
    return t('The e-mail address %mail is not valid.', array('%mail' => theme('placeholder', $mail)));
Dries's avatar
 
Dries committed
261 262 263
  }
}

Dries's avatar
 
Dries committed
264
function user_validate_picture($file, &$edit, $user) {
265
  global $form_values;
Dries's avatar
Dries committed
266
  // Initialize the picture:
267
  $form_values['picture'] = $user->picture;
Dries's avatar
 
Dries committed
268

Dries's avatar
Dries committed
269 270
  // Check that uploaded file is an image, with a maximum file size
  // and maximum height/width.
271
  $info = image_get_info($file->filepath);
Dries's avatar
Dries committed
272
  list($maxwidth, $maxheight) = explode('x', variable_get('user_picture_dimensions', '85x85'));
Dries's avatar
 
Dries committed
273

274
  if (!$info || !$info['extension']) {
275
    form_set_error('picture_upload', t('The uploaded file was not an image.'));
Dries's avatar
 
Dries committed
276
  }
277 278
  else if (image_get_toolkit()) {
    image_scale($file->filepath, $file->filepath, $maxwidth, $maxheight);
Dries's avatar
 
Dries committed
279
  }
280
  else if (filesize($file->filepath) > (variable_get('user_picture_file_size', '30') * 1000)) {
281
    form_set_error('picture_upload', t('The uploaded image is too large; the maximum file size is %size kB.', array('%size' => variable_get('user_picture_file_size', '30'))));
282
  }
283
  else if ($info['width'] > $maxwidth || $info['height'] > $maxheight) {
284
    form_set_error('picture_upload', t('The uploaded image is too large; the maximum dimensions are %dimensions pixels.', array('%dimensions' => variable_get('user_picture_dimensions', '85x85'))));
Dries's avatar
 
Dries committed
285
  }
286 287

  if (!form_get_errors()) {
288
    if ($file = file_save_upload('picture_upload', variable_get('user_picture_path', 'pictures') .'/picture-'. $user->uid .'.'. $info['extension'], 1)) {
289
      $form_values['picture'] = $file->filepath;
290 291
    }
    else {
292
      form_set_error('picture_upload', t("Failed to upload the picture image; the %directory directory doesn't exist.", array('%directory' => '<em>'. variable_get('user_picture_path', 'pictures') .'</em>')));
293
    }
Dries's avatar
 
Dries committed
294 295 296
  }
}

Dries's avatar
Dries committed
297 298 299
/**
 * Generate a random alphanumeric password.
 */
Dries's avatar
 
Dries committed
300 301
function user_password($length = 10) {
  // This variable contains the list of allowable characters for the
302 303
  // password. Note that the number 0 and the letter 'O' have been
  // removed to avoid confusion between the two. The same is true
304 305
  // of 'I', 1, and l.
  $allowable_characters = 'abcdefghijkmnopqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ23456789';
Dries's avatar
Dries committed
306

307 308
  // Zero-based count of characters in the allowable list:
  $len = strlen($allowable_characters) - 1;
Dries's avatar
 
Dries committed
309

Dries's avatar
Dries committed
310 311
  // Declare the password as a blank string.
  $pass = '';
Dries's avatar
 
Dries committed
312

Dries's avatar
Dries committed
313
  // Loop the number of times specified by $length.
Dries's avatar
 
Dries committed
314 315 316 317
  for ($i = 0; $i < $length; $i++) {

    // Each iteration, pick a random character from the
    // allowable string and append it to the password:
318
    $pass .= $allowable_characters[mt_rand(0, $len)];
Dries's avatar
 
Dries committed
319 320 321
  }

  return $pass;
Dries's avatar
 
Dries committed
322 323
}

Dries's avatar
Dries committed
324 325 326 327 328
/**
 * Determine whether the user has a given privilege.
 *
 * @param $string
 *   The permission, such as "administer nodes", being checked for.
Dries's avatar
 
Dries committed
329 330
 * @param $account
 *   (optional) The account to check, if not given use currently logged in user.
Dries's avatar
Dries committed
331 332
 *
 * @return
333
 *   boolean TRUE if the current user has the requested permission.
Dries's avatar
Dries committed
334 335 336 337 338
 *
 * All permission checks in Drupal should go through this function. This
 * way, we guarantee consistent behavior, and ensure that the superuser
 * can perform all actions.
 */
Dries's avatar
 
Dries committed
339
function user_access($string, $account = NULL) {
Dries's avatar
 
Dries committed
340
  global $user;
Dries's avatar
 
Dries committed
341
  static $perm = array();
Dries's avatar
 
Dries committed
342

343 344 345 346
  if (is_null($account)) {
    $account = $user;
  }

347
  // User #1 has all privileges:
348
  if ($account->uid == 1) {
349
    return TRUE;
Dries's avatar
 
Dries committed
350 351
  }

Dries's avatar
Dries committed
352 353
  // To reduce the number of SQL queries, we cache the user's permissions
  // in a static variable.
354
  if (!isset($perm[$account->uid])) {
355
    $result = db_query("SELECT DISTINCT(p.perm) FROM {role} r INNER JOIN {permission} p ON p.rid = r.rid WHERE r.rid IN (%s)", implode(',', array_keys($account->roles)));
Dries's avatar
 
Dries committed
356

Steven Wittens's avatar
Steven Wittens committed
357
    $perm[$account->uid] = '';
Dries's avatar
 
Dries committed
358
    while ($row = db_fetch_object($result)) {
359
      $perm[$account->uid] .= "$row->perm, ";
Dries's avatar
 
Dries committed
360
    }
Dries's avatar
 
Dries committed
361
  }
362

363
  if (isset($perm[$account->uid])) {
364
    return strpos($perm[$account->uid], "$string, ") !== FALSE;
365
  }
366

367
  return FALSE;
Dries's avatar
 
Dries committed
368 369
}

370 371 372 373 374 375 376 377 378 379 380 381
/**
 * Checks for usernames blocked by user administration
 *
 * @return boolean true for blocked users, false for active
 */
function user_is_blocked($name) {
  $allow = db_fetch_object(db_query("SELECT * FROM {users} WHERE status = 1 AND name = LOWER('%s')", $name));
  $deny  = db_fetch_object(db_query("SELECT * FROM {users} WHERE status = 0 AND name = LOWER('%s')", $name));

  return $deny && !$allow;
}

Dries's avatar
Dries committed
382 383 384
/**
 * Send an e-mail message.
 */
Dries's avatar
 
Dries committed
385
function user_mail($mail, $subject, $message, $header) {
Dries's avatar
Dries committed
386
  if (variable_get('smtp_library', '') && file_exists(variable_get('smtp_library', ''))) {
387
   include_once './' . variable_get('smtp_library', '');
388
    return user_mail_wrapper($mail, $subject, $message, $header);
Dries's avatar
 
Dries committed
389 390
  }
  else {
391 392
    /*
    ** Note: if you are having problems with sending mail, or mails look wrong
393
    ** when they are received you may have to modify the str_replace to suit
394 395 396 397
    ** your systems.
    **  - \r\n will work under dos and windows.
    **  - \n will work for linux, unix and BSDs.
    **  - \r will work for macs.
Dries's avatar
 
Dries committed
398 399 400 401
    **
    ** According to RFC 2646, it's quite rude to not wrap your e-mails:
    **
    ** "The Text/Plain media type is the lowest common denominator of
402
    ** Internet e-mail, with lines of no more than 997 characters (by
Dries's avatar
 
Dries committed
403 404 405 406 407 408 409
    ** convention usually no more than 80), and where the CRLF sequence
    ** represents a line break [MIME-IMT]."
    **
    ** CRLF === \r\n
    **
    ** http://www.rfc-editor.org/rfc/rfc2646.txt
    **
410
    */
Dries's avatar
 
Dries committed
411 412
    return mail(
      $mail,
Dries's avatar
 
Dries committed
413
      mime_header_encode($subject),
Dries's avatar
Dries committed
414
      str_replace("\r", '', $message),
Dries's avatar
 
Dries committed
415
      "MIME-Version: 1.0\nContent-Type: text/plain; charset=UTF-8; format=flowed\nContent-transfer-encoding: 8Bit\n" . $header
Dries's avatar
 
Dries committed
416
    );
Dries's avatar
 
Dries committed
417 418 419
  }
}

Dries's avatar
 
Dries committed
420 421
function user_fields() {
  static $fields;
Dries's avatar
 
Dries committed
422

Dries's avatar
 
Dries committed
423
  if (!$fields) {
Dries's avatar
Dries committed
424
    $result = db_query('SELECT * FROM {users} WHERE uid = 1');
Kjartan's avatar
Kjartan committed
425 426 427
    if (db_num_rows($result)) {
      $fields = array_keys(db_fetch_array($result));
    }
Dries's avatar
 
Dries committed
428 429
    else {
      // Make sure we return the default fields at least
430
      $fields = array('uid', 'name', 'pass', 'mail', 'picture', 'mode', 'sort', 'threshold', 'theme', 'signature', 'created', 'access', 'login', 'status', 'timezone', 'language', 'init', 'data');
Dries's avatar
 
Dries committed
431
    }
Dries's avatar
 
Dries committed
432
  }
Dries's avatar
 
Dries committed
433

Dries's avatar
 
Dries committed
434
  return $fields;
Dries's avatar
 
Dries committed
435 436
}

Dries's avatar
Dries committed
437 438 439
/**
 * Implementation of hook_perm().
 */
Dries's avatar
 
Dries committed
440
function user_perm() {
441
  return array('administer access control', 'administer users', 'access user profiles', 'change own username');
Dries's avatar
 
Dries committed
442 443
}

Dries's avatar
Dries committed
444 445 446 447 448
/**
 * Implementation of hook_file_download().
 *
 * Ensure that user pictures (avatars) are always downloadable.
 */
Dries's avatar
 
Dries committed
449
function user_file_download($file) {
Steven Wittens's avatar
Steven Wittens committed
450
  if (strpos($file, variable_get('user_picture_path', 'pictures') .'/picture-') === 0) {
451 452
    $info = image_get_info(file_create_path($file));
    return array('Content-type: '. $info['mime_type']);
Dries's avatar
 
Dries committed
453 454 455
  }
}

Dries's avatar
Dries committed
456 457 458
/**
 * Implementation of hook_search().
 */
459 460 461
function user_search($op = 'search', $keys = null) {
  switch ($op) {
    case 'name':
462 463 464
      if (user_access('access user profiles')) {
        return t('users');
      }
465
    case 'search':
466 467 468 469 470 471
      if (user_access('access user profiles')) {
        $find = array();
        // Replace wildcards with MySQL/PostgreSQL wildcards.
        $keys = preg_replace('!\*+!', '%', $keys);
        $result = pager_query("SELECT * FROM {users} WHERE LOWER(name) LIKE LOWER('%%%s%%')", 15, 0, NULL, $keys);
        while ($account = db_fetch_object($result)) {
472
          $find[] = array('title' => $account->name, 'link' => url('user/'. $account->uid));
473 474
        }
        return $find;
475
      }
Dries's avatar
 
Dries committed
476 477 478
  }
}

Dries's avatar
Dries committed
479 480 481
/**
 * Implementation of hook_user().
 */
482
function user_user($type, &$edit, &$user, $category = NULL) {
Dries's avatar
Dries committed
483
  if ($type == 'view') {
484 485 486 487 488 489
    $items[] = array('title' => t('Member for'),
      'value' => format_interval(time() - $user->created),
      'class' => 'member',
    );

    return array(t('History') => $items);
Dries's avatar
Dries committed
490
  }
491 492 493 494 495
  if ($type == 'form' && $category == 'account') {
    return user_edit_form(arg(1), $edit);
  }

  if ($type == 'validate' && $category == 'account') {
496
    return _user_edit_validate(arg(1), $edit);
497 498
  }

499 500 501 502
  if ($type == 'submit' && $category == 'account') {
    return _user_edit_submit(arg(1), $edit);
  }

503 504 505
  if ($type == 'categories') {
    return array(array('name' => 'account', 'title' => t('account settings'), 'weight' => 1));
  }
Dries's avatar
Dries committed
506 507
}

Dries's avatar
Dries committed
508 509 510
/**
 * Implementation of hook_block().
 */
511
function user_block($op = 'list', $delta = 0, $edit = array()) {
Dries's avatar
 
Dries committed
512 513
  global $user;

Dries's avatar
Dries committed
514 515 516 517 518
  if ($op == 'list') {
     $blocks[0]['info'] = t('User login');
     $blocks[1]['info'] = t('Navigation');
     $blocks[2]['info'] = t('Who\'s new');
     $blocks[3]['info'] = t('Who\'s online');
519

520
     return $blocks;
521
  }
522 523
  else if ($op == 'configure' && $delta == 3) {
    $period = drupal_map_assoc(array(30, 60, 120, 180, 300, 600, 900, 1800, 2700, 3600, 5400, 7200, 10800, 21600, 43200, 86400), 'format_interval');
524 525
    $form['user_block_seconds_online'] = array('#type' => 'select', '#title' => t('User activity'), '#default_value' => variable_get('user_block_seconds_online', 900), '#options' => $period, '#description' => t('A user is considered online for this long after they have last viewed a page.'));
    $form['user_block_max_list_count'] = array('#type' => 'select', '#title' => t('User list length'), '#default_value' => variable_get('user_block_max_list_count', 10), '#options' => drupal_map_assoc(array(0, 5, 10, 15, 20, 25, 30, 40, 50, 75, 100)), '#description' => t('Maximum number of currently online users to display.'));
526

527
    return $form;
528 529 530 531 532 533
  }
  else if ($op == 'save' && $delta == 3) {
    variable_set('user_block_seconds_online', $edit['user_block_seconds_online']);
    variable_set('user_block_max_list_count', $edit['user_block_max_list_count']);
  }
  else if ($op == 'view') {
Dries's avatar
 
Dries committed
534 535
    $block = array();

Dries's avatar
 
Dries committed
536 537
    switch ($delta) {
      case 0:
Dries's avatar
Dries committed
538 539
        // For usability's sake, avoid showing two login forms on one page.
        if (!$user->uid && !(arg(0) == 'user' && !is_numeric(arg(1)))) {
540
          $form['#action'] = url($_GET['q'], drupal_get_destination());
541
          $form['#id'] = 'user-login-form';
Dries's avatar
Dries committed
542 543 544 545 546 547 548 549 550 551 552 553 554 555
          $form['name'] = array('#type' => 'textfield',
            '#title' => t('Username'),
            '#maxlength' => 60,
            '#size' => 15,
            '#required' => TRUE,
          );
          $form['pass'] = array('#type' => 'password',
            '#title' => t('Password'),
            '#size' => 15,
            '#required' => TRUE,
          );
          $form['submit'] = array('#type' => 'submit',
            '#value' => t('Log in'),
          );
556

Dries's avatar
Dries committed
557 558
          if (variable_get('user_register', 1)) {
            $items[] = l(t('Create new account'), 'user/register', array('title' => t('Create a new user account.')));
Dries's avatar
 
Dries committed
559
          }
Dries's avatar
Dries committed
560
          $items[] = l(t('Request new password'), 'user/password', array('title' => t('Request new password via e-mail.')));
561
          $form['links'] = array('#value' => theme('item_list', $items));
Dries's avatar
 
Dries committed
562

Dries's avatar
Dries committed
563
          $block['subject'] = t('User login');
564
          $block['content'] = drupal_get_form('user_login_block', $form, 'user_login');
Dries's avatar
 
Dries committed
565
        }
Dries's avatar
Dries committed
566
        return $block;
Dries's avatar
Dries committed
567

568
      case 1:
Dries's avatar
 
Dries committed
569
        if ($menu = theme('menu_tree')) {
Dries's avatar
Dries committed
570
           $block['subject'] = $user->uid ? $user->name : t('Navigation');
571
           $block['content'] = $menu;
Dries's avatar
 
Dries committed
572
        }
573
        return $block;
Dries's avatar
Dries committed
574

Dries's avatar
 
Dries committed
575
      case 2:
576
        if (user_access('access content')) {
Steven Wittens's avatar
Steven Wittens committed
577
          // Retrieve a list of new users who have subsequently accessed the site successfully.
578
          $result = db_query_range('SELECT uid, name FROM {users} WHERE status != 0 AND access != 0 ORDER BY created DESC', 0, 5);
579
          while ($account = db_fetch_object($result)) {
580
            $items[] = $account;
581
          }
Dries's avatar
Dries committed
582
          $output = theme('user_list', $items);
Dries's avatar
 
Dries committed
583

Dries's avatar
Dries committed
584 585
          $block['subject'] = t('Who\'s new');
          $block['content'] = $output;
586
        }
Dries's avatar
Dries committed
587 588
        return $block;

Dries's avatar
 
Dries committed
589
      case 3:
590
        if (user_access('access content')) {
Dries's avatar
Dries committed
591
          // Count users with activity in the past defined period.
592
          $time_period = variable_get('user_block_seconds_online', 900);
Dries's avatar
 
Dries committed
593

Dries's avatar
Dries committed
594
          // Perform database queries to gather online user lists.
Dries's avatar
 
Dries committed
595
          $guests = db_fetch_object(db_query('SELECT COUNT(sid) AS count FROM {sessions} WHERE timestamp >= %d AND uid = 0', time() - $time_period));
596
          $users = db_query('SELECT uid, name, access FROM {users} WHERE access >= %d AND uid != 0 ORDER BY access DESC', time() - $time_period);
Dries's avatar
 
Dries committed
597
          $total_users = db_num_rows($users);
Dries's avatar
 
Dries committed
598

Dries's avatar
Dries committed
599
          // Format the output with proper grammar.
Dries's avatar
 
Dries committed
600
          if ($total_users == 1 && $guests->count == 1) {
Dries's avatar
Dries committed
601
            $output = t('There is currently %members and %visitors online.', array('%members' => format_plural($total_users, '1 user', '%count users'), '%visitors' => format_plural($guests->count, '1 guest', '%count guests')));
Dries's avatar
 
Dries committed
602 603
          }
          else {
Dries's avatar
Dries committed
604
            $output = t('There are currently %members and %visitors online.', array('%members' => format_plural($total_users, '1 user', '%count users'), '%visitors' => format_plural($guests->count, '1 guest', '%count guests')));
Dries's avatar
 
Dries committed
605 606
          }

607 608
          // Display a list of currently online users.
          $max_users = variable_get('user_block_max_list_count', 10);
609 610
          if ($total_users && $max_users) {
            $items = array();
611

612 613 614
            while ($max_users-- && $account = db_fetch_object($users)) {
              $items[] = $account;
            }
615

616 617
            $output .= theme('user_list', $items, t('Online users'));
          }
618

Dries's avatar
Dries committed
619 620
          $block['subject'] = t('Who\'s online');
          $block['content'] = $output;
Dries's avatar
 
Dries committed
621
        }
Dries's avatar
 
Dries committed
622
        return $block;
Dries's avatar
 
Dries committed
623 624
    }
  }
625 626
}

Dries's avatar
 
Dries committed
627 628 629 630 631 632 633 634 635
function theme_user_picture($account) {
  if (variable_get('user_pictures', 0)) {
    if ($account->picture && file_exists($account->picture)) {
      $picture = file_create_url($account->picture);
    }
    else if (variable_get('user_picture_default', '')) {
      $picture = variable_get('user_picture_default', '');
    }

636
    if (isset($picture)) {
Dries's avatar
Dries committed
637
      $alt = t('%user\'s picture', array('%user' => $account->name ? $account->name : variable_get('anonymous', 'Anonymous')));
Steven Wittens's avatar
Steven Wittens committed
638
      $picture = theme('image', $picture, $alt, $alt, '', false);
639
      if (!empty($account->uid) && user_access('access user profiles')) {
640
        $picture = l($picture, "user/$account->uid", array('title' => t('View user profile.')), NULL, NULL, FALSE, TRUE);
Dries's avatar
 
Dries committed
641 642 643 644 645 646 647
      }

      return "<div class=\"picture\">$picture</div>";
    }
  }
}

648 649 650
/**
 * Theme a user page
 * @param $account the user object
651 652 653 654 655
 * @param $fields a multidimensional array for the fields, in the form of array (
 *   'category1' => array(item_array1, item_array2), 'category2' => array(item_array3,
 *    .. etc.). Item arrays are formatted as array(array('title' => 'item title',
 * 'value' => 'item value', 'class' => 'class-name'), ... etc.). Module names are incorporated
 * into the CSS class.
656 657 658
 *
 * @ingroup themeable
 */
Dries's avatar
Dries committed
659
function theme_user_profile($account, $fields) {
660
  $output = '<div class="profile">';
Dries's avatar
 
Dries committed
661
  $output .= theme('user_picture', $account);
662
  foreach ($fields as $category => $items) {
663
    if (strlen($category) > 0) {
664
      $output .= '<h2 class="title">'. $category .'</h2>';
665
    }
666 667
    $output .= '<dl>';
    foreach ($items as $item) {
668
      if (isset($item['title'])) {
669
        $output .= '<dt class="'. $item['class'] .'">'. $item['title'] .'</dt>';
670 671
      }
      $output .= '<dd class="'. $item['class'] .'">'. $item['value'] .'</dd>';
672 673
    }
    $output .= '</dl>';
Dries's avatar
Dries committed
674
  }
675
  $output .= '</div>';
Dries's avatar
 
Dries committed
676 677 678 679

  return $output;
}

680 681 682 683 684 685 686
/**
 * Make a list of users.
 * @param $items an array with user objects. Should contain at least the name and uid
 *
 * @ingroup themeable
 */
function theme_user_list($users, $title = NULL) {
687 688 689 690
  if (!empty($users)) {
    foreach ($users as $user) {
      $items[] = theme('username', $user);
    }
691
  }
Dries's avatar
Dries committed
692
  return theme('item_list', $items, $title);
Dries's avatar
 
Dries committed
693 694
}

Dries's avatar
 
Dries committed
695
/**
Dries's avatar
 
Dries committed
696
 * Implementation of hook_menu().
Dries's avatar
 
Dries committed
697
 */
Dries's avatar
 
Dries committed
698
function user_menu($may_cache) {
Dries's avatar
 
Dries committed
699
  global $user;
Dries's avatar
 
Dries committed
700

Dries's avatar
 
Dries committed
701
  $items = array();
Dries's avatar
 
Dries committed
702

703
  $admin_access = user_access('administer users');
704
  $access_access = user_access('administer access control');
705
  $view_access = user_access('access user profiles');
Dries's avatar
 
Dries committed
706

Dries's avatar
 
Dries committed
707
  if ($may_cache) {
Dries's avatar
 
Dries committed
708
    $items[] = array('path' => 'user', 'title' => t('user account'),
709
      'callback' => 'user_login', 'access' => TRUE, 'type' => MENU_CALLBACK);
710

Steven Wittens's avatar
Steven Wittens committed
711
    $items[] = array('path' => 'user/autocomplete', 'title' => t('user autocomplete'),
712
      'callback' => 'user_autocomplete', 'access' => $view_access, 'type' => MENU_CALLBACK);
Steven Wittens's avatar
Steven Wittens committed
713

Steven Wittens's avatar
Steven Wittens committed
714
    // Registration and login pages.
Dries's avatar
 
Dries committed
715
    $items[] = array('path' => 'user/login', 'title' => t('log in'),
716
      'callback' => 'user_login', 'type' => MENU_DEFAULT_LOCAL_TASK);
717
    $items[] = array('path' => 'user/register', 'title' => t('create new account'),
718
      'callback' => 'user_register', 'access' => $user->uid == 0 && variable_get('user_register', 1), 'type' => MENU_LOCAL_TASK);
Dries's avatar
 
Dries committed
719
    $items[] = array('path' => 'user/password', 'title' => t('request new password'),
720
      'callback' => 'user_pass', 'access' => $user->uid == 0, 'type' => MENU_LOCAL_TASK);
721
    $items[] = array('path' => 'user/reset', 'title' => t('reset password'),
722
      'callback' => 'user_pass_reset', 'access' => TRUE, 'type' => MENU_CALLBACK);
Dries's avatar
 
Dries committed
723 724
    $items[] = array('path' => 'user/help', 'title' => t('help'),
      'callback' => 'user_help_page', 'type' => MENU_CALLBACK);
Dries's avatar
 
Dries committed
725

Steven Wittens's avatar
Steven Wittens committed
726
    // Admin user pages
Dries's avatar
 
Dries committed
727
    $items[] = array('path' => 'admin/user', 'title' => t('users'),
728
      'callback' => 'user_admin', 'access' => $admin_access);
Dries's avatar
 
Dries committed
729
    $items[] = array('path' => 'admin/user/list', 'title' => t('list'),
Dries's avatar
 
Dries committed
730
      'type' => MENU_DEFAULT_LOCAL_TASK, 'weight' => -10);
Dries's avatar
 
Dries committed
731
    $items[] = array('path' => 'admin/user/create', 'title' => t('add user'),
732
      'callback' => 'user_admin', 'access' => $admin_access,
Dries's avatar
 
Dries committed
733
      'type' => MENU_LOCAL_TASK);
734
    $items[] = array('path' => 'admin/settings/user', 'title' => t('users'),
735
      'callback' => 'user_configure');
736

Steven Wittens's avatar
Steven Wittens committed
737
    // Admin access pages
738
    $items[] = array('path' => 'admin/access', 'title' => t('access control'),
739
      'callback' => 'user_admin_perm', 'access' => $access_access);
740
    $items[] = array('path' => 'admin/access/permissions', 'title' => t('permissions'),
741
      'callback' => 'user_admin_perm', 'access' => $access_access,
Dries's avatar
 
Dries committed
742
      'type' => MENU_DEFAULT_LOCAL_TASK, 'weight' => -10);
743
    $items[] = array('path' => 'admin/access/roles', 'title' => t('roles'),
744
      'callback' => 'user_admin_role', 'access' => $access_access,
Dries's avatar
 
Dries committed
745
      'type' => MENU_LOCAL_TASK);
746
    $items[] = array('path' => 'admin/access/roles/edit', 'title' => t('edit role'),
747
      'callback' => 'user_admin_role', 'access' => $access_access,
748
      'type' => MENU_CALLBACK);
Dries's avatar
 
Dries committed
749
    $items[] = array('path' => 'admin/access/rules', 'title' => t('access rules'),
750
      'callback' => 'user_admin_access', 'access' => $access_access,
751 752
      'type' => MENU_LOCAL_TASK, 'weight' => 10);
    $items[] = array('path' => 'admin/access/rules/list', 'title' => t('list'),
753
      'access' => $access_access, 'type' => MENU_DEFAULT_LOCAL_TASK, 'weight' => -10);
754
    $items[] = array('path' => 'admin/access/rules/add', 'title' => t('add rule'),
755
      'callback' => 'user_admin_access_add', 'access' => $access_access,
Dries's avatar
 
Dries committed
756
      'type' => MENU_LOCAL_TASK);
757
    $items[] = array('path' => 'admin/access/rules/check', 'title' => t('check rules'),
758
      'callback' => 'user_admin_access_check', 'access' => $access_access,
Dries's avatar
 
Dries committed
759
      'type' => MENU_LOCAL_TASK);
760
    $items[] = array('path' => 'admin/access/rules/edit', 'title' => t('edit rule'),
761
      'callback' => 'user_admin_access_edit', 'access' => $access_access,
762
      'type' => MENU_CALLBACK);
763
    $items[] = array('path' => 'admin/access/rules/delete', 'title' => t('delete rule'),
764
      'callback' => 'user_admin_access_delete', 'access' => $access_access,
765
      'type' => MENU_CALLBACK);
766

Dries's avatar
 
Dries committed
767 768
    if (module_exist('search')) {
      $items[] = array('path' => 'admin/user/search', 'title' => t('search'),
769
        'callback' => 'user_admin', 'access' => $admin_access,
Dries's avatar
 
Dries committed
770
        'type' => MENU_LOCAL_TASK);
771
    }
Dries's avatar
 
Dries committed
772

Steven Wittens's avatar
Steven Wittens committed
773
    // Your personal page
Dries's avatar
 
Dries committed
774 775
    if ($user->uid) {
      $items[] = array('path' => 'user/'. $user->uid, 'title' => t('my account'),
776
        'callback' => 'user_view', 'callback arguments' => array(arg(1)), 'access' => TRUE,
777
        'type' => MENU_DYNAMIC_ITEM);
Dries's avatar
 
Dries committed
778
    }
Dries's avatar
 
Dries committed
779 780 781 782 783

    $items[] = array('path' => 'logout', 'title' => t('log out'),
      'access' => $user->uid != 0,
      'callback' => 'user_logout',
      'weight' => 10);
Dries's avatar
 
Dries committed
784 785
  }
  else {
786
    if (arg(0) == 'user' && is_numeric(arg(1)) && arg(1) > 0) {