common.inc 30.8 KB
Newer Older
Dries Buytaert's avatar
   
Dries Buytaert committed
1
2
3
4
5
6
7
8
9
10
11
<?php
// $Id$

function conf_init() {

  /*
  ** Try finding a matching configuration file by stripping the website's
  ** URI from left to right.  If no configuration file is found, return a
  ** default value 'conf'.
  */

Dries Buytaert's avatar
   
Dries Buytaert committed
12
  $uri = $_SERVER["PHP_SELF"];
Dries Buytaert's avatar
   
Dries Buytaert committed
13

Dries Buytaert's avatar
   
Dries Buytaert committed
14
  $file = strtolower(strtr($_SERVER["HTTP_HOST"] . substr($uri, 0, strrpos($uri, "/")), "/:", ".."));
Dries Buytaert's avatar
   
Dries Buytaert committed
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30

  while (strlen($file) > 4) {
    if (file_exists("includes/$file.php")) {
      return $file;
    }
    else {
      $file = substr($file, strpos($file, ".") + 1);
    }
  }

  return "conf";
}

function error_handler($errno, $message, $filename, $line, $variables) {
  $types = array(1 => "error", 2 => "warning", 4 => "parse error", 8 => "notice", 16 => "core error", 32 => "core warning", 64 => "compile error", 128 => "compile warning", 256 => "user error", 512 => "user warning", 1024 => "user notice");
  $entry = $types[$errno] .": $message in $filename on line $line.";
Dries Buytaert's avatar
   
Dries Buytaert committed
31
32

  if ($errno & E_ALL ^ E_NOTICE) {
Dries Buytaert's avatar
   
Dries Buytaert committed
33
    watchdog("error", $types[$errno] .": $message in $filename on line $line.");
34
    print "<pre>$entry</pre>";
Dries Buytaert's avatar
   
Dries Buytaert committed
35
36
37
  }
}

Dries Buytaert's avatar
   
Dries Buytaert committed
38
function watchdog($type, $message, $link = NULL) {
Dries Buytaert's avatar
   
Dries Buytaert committed
39
  global $user;
Dries Buytaert's avatar
   
Dries Buytaert committed
40
  db_query("INSERT INTO watchdog (uid, type, message, link, location, hostname, timestamp) VALUES (%d, '%s', '%s', '%s', '%s', '%s', %d)", $user->uid, $type, $message, $link, request_uri(), getenv("REMOTE_ADDR"), time());
Dries Buytaert's avatar
   
Dries Buytaert committed
41
42
43
44
45
46
47
48
49
50
51
52
53
54
}

function throttle($type, $rate) {
  if (!user_access("access administration pages")) {
    if ($throttle = db_fetch_object(db_query("SELECT * FROM watchdog WHERE type = '$type' AND hostname = '". getenv("REMOTE_ADDR") ."' AND ". time() ." - timestamp < $rate"))) {
      watchdog("warning", "throttle: '". getenv("REMOTE_ADDR") ."' exceeded submission rate - $throttle->type");
      die(message_throttle());
    }
    else {
      watchdog($type, "throttle");
    }
  }
}

Dries Buytaert's avatar
   
Dries Buytaert committed
55
56
function check_php_setting($name, $value) {
  if (ini_get($name) != $value) {
Steven Wittens's avatar
Steven Wittens committed
57
    print "<p>Note that the value of PHP's configuration option <code><b>$name</b></code> is incorrect.  It should be set to '$value' for Drupal to work properly.  Either configure your webserver to support <code>.htaccess</code> files so Drupal's <code>.htaccess</code> file can set it to the proper value, or edit your <code>php.ini</code> file directly.  This message will automatically dissapear when the problem has been fixed.</p>";
Dries Buytaert's avatar
   
Dries Buytaert committed
58
59
60
  }
}

Dries Buytaert's avatar
   
Dries Buytaert committed
61
62
63
64
65
function arg($index) {

  static $arguments;

  if (empty($arguments)) {
Dries Buytaert's avatar
   
Dries Buytaert committed
66
    $arguments = explode("/", $_GET["q"]);
Dries Buytaert's avatar
   
Dries Buytaert committed
67
68
69
70
71
  }

  return $arguments[$index];
}

Dries Buytaert's avatar
   
Dries Buytaert committed
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
function array2object($node) {

  if (is_array($node)) {
    foreach ($node as $key => $value) {
      $object->$key = $value;
    }
  }
  else {
    $object = $node;
  }

  return $object;
}

function object2array($node) {

  if (is_object($node)) {
    foreach ($node as $key => $value) {
      $array[$key] = $value;
    }
  }
  else {
    $array = $node;
  }

  return $array;
}

Dries Buytaert's avatar
   
Dries Buytaert committed
100
101
102
103
104
105
106
107
108
function referer_uri() {

  if (isset($_SERVER["HTTP_REFERER"])) {
    $uri = $_SERVER["HTTP_REFERER"];

    return check_url($uri);
  }
}

Dries Buytaert's avatar
   
Dries Buytaert committed
109
function request_uri() {
Dries Buytaert's avatar
   
Dries Buytaert committed
110
111
112
113
  /*
  ** Since request_uri() is only available on Apache, we generate
  ** equivalent using other environment vars.
  */
Dries Buytaert's avatar
   
Dries Buytaert committed
114

Dries Buytaert's avatar
   
Dries Buytaert committed
115
  if (isset($_SERVER["REQUEST_URI"])) {
116
    $uri = $_SERVER["REQUEST_URI"];
Dries Buytaert's avatar
   
Dries Buytaert committed
117
118
  }
  else {
119
    $uri = $_SERVER["PHP_SELF"] ."?". $_SERVER["QUERY_STRING"];
Dries Buytaert's avatar
   
Dries Buytaert committed
120
  }
121

Dries Buytaert's avatar
   
Dries Buytaert committed
122
  return check_url($uri);
Dries Buytaert's avatar
   
Dries Buytaert committed
123
124
}

Dries Buytaert's avatar
   
Dries Buytaert committed
125
function message_access() {
Dries Buytaert's avatar
   
Dries Buytaert committed
126
  return t("You are not authorized to access this page.");
Dries Buytaert's avatar
   
Dries Buytaert committed
127
128
129
130
131
132
133
134
135
136
}

function message_na() {
  return t("n/a");
}

function message_throttle() {
  return t("You exceeded the maximum submission rate.  Please wait a few minutes and try again.");
}

Dries Buytaert's avatar
   
Dries Buytaert committed
137
138
function locale_init() {
  global $languages, $user;
Dries Buytaert's avatar
   
Dries Buytaert committed
139
140
141
142
143
144
  if ($user->uid && $languages[$user->language]) {
    return $user->language;
  }
  else {
    return key($languages);
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
145
146
}

Dries Buytaert's avatar
   
Dries Buytaert committed
147
function t($string, $args = 0) {
Dries Buytaert's avatar
   
Dries Buytaert committed
148
  global $languages;
149

Dries Buytaert's avatar
   
Dries Buytaert committed
150
151
152
153
154
155
156
  /*
  ** About the usage of t().  We try to keep strings whole as much as
  ** possible and are unafraid of HTML markup within translation strings
  ** if necessary.  The suggested syntax for a link embedded within a
  ** translation string is for example:
  **
  ** $msg = t("You must login below or <a href=\"%url\">create a new
Dries Buytaert's avatar
   
Dries Buytaert committed
157
158
  **           account</a> before viewing the next page.", array("%url"
  **           => url("user/register")));
Dries Buytaert's avatar
   
Dries Buytaert committed
159
160
  */

161
  $string = ($languages && module_exist("locale") ? locale($string) : $string);
162

Dries Buytaert's avatar
   
Dries Buytaert committed
163
164
  if (!$args) {
    return $string;
Kjartan Mannes's avatar
Kjartan Mannes committed
165
166
  }
  else {
Dries Buytaert's avatar
   
Dries Buytaert committed
167
168
    return strtr($string, $args);
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
169
170
171
172
173
174
}

function variable_init($conf = array()) {
  $result = db_query("SELECT * FROM variable");
  while ($variable = db_fetch_object($result)) {
    if (!isset($conf[$variable->name])) {
Dries Buytaert's avatar
   
Dries Buytaert committed
175
      $conf[$variable->name] = unserialize($variable->value);
Dries Buytaert's avatar
   
Dries Buytaert committed
176
177
178
179
180
181
    }
  }

  return $conf;
}

182
function variable_get($name, $default) {
Dries Buytaert's avatar
   
Dries Buytaert committed
183
184
185
186
187
188
189
190
  global $conf;

  return isset($conf[$name]) ? $conf[$name] : $default;
}

function variable_set($name, $value) {
  global $conf;

Dries Buytaert's avatar
   
Dries Buytaert committed
191
  db_query("DELETE FROM variable WHERE name = '%s'", $name);
Dries Buytaert's avatar
   
Dries Buytaert committed
192
  db_query("INSERT INTO variable (name, value) VALUES ('%s', '%s')", $name, serialize($value));
Dries Buytaert's avatar
   
Dries Buytaert committed
193
194
195
196
197
198
199

  $conf[$name] = $value;
}

function variable_del($name) {
  global $conf;

Dries Buytaert's avatar
   
Dries Buytaert committed
200
  db_query("DELETE FROM variable WHERE name = '%s'", $name);
Dries Buytaert's avatar
   
Dries Buytaert committed
201
202
203
204

  unset($conf[$name]);
}

Dries Buytaert's avatar
   
Dries Buytaert committed
205
function drupal_specialchars($input, $quotes = ENT_NOQUOTES) {
Dries Buytaert's avatar
   
Dries Buytaert committed
206
207
208
209
210
211
212
213
214

  /*
  ** Note that we'd like to go 'htmlspecialchars($input, $quotes, "utf-8")'
  ** like the PHP manual tells us to, but we can't because there's a bug in
  ** PHP <4.3 that makes it mess up multibyte charsets if we specify the
  ** charset.  Change this later once we make PHP 4.3 a requirement.
  */

  return htmlspecialchars($input, $quotes);
Dries Buytaert's avatar
   
Dries Buytaert committed
215
216
}

Dries Buytaert's avatar
   
Dries Buytaert committed
217
function table_cell($cell, $header = 0) {
Dries Buytaert's avatar
   
Dries Buytaert committed
218
  if (is_array($cell)) {
Dries Buytaert's avatar
   
Dries Buytaert committed
219
220
221
222
223
224
225
226
227
228
229
    $data = $cell["data"];
    foreach ($cell as $key => $value) {
      if ($key != "data")  {
        $attributes .= " $key=\"$value\"";
      }
    }
  }
  else {
    $data = $cell;
  }

Dries Buytaert's avatar
   
Dries Buytaert committed
230
  if ($header) {
Dries Buytaert's avatar
   
Dries Buytaert committed
231
232
233
234
235
236
237
238
239
240
241
    $output = "<th$attributes>$data</th>";
  }
  else {
    $output = "<td$attributes>$data</td>";
  }

  return $output;
}

function table($header, $rows) {

242
  $output = "<table>\n";
Dries Buytaert's avatar
   
Dries Buytaert committed
243
244
245
246
247

  /*
  ** Emit the table header:
  */

Dries Buytaert's avatar
   
Dries Buytaert committed
248
249
250
251
252
  if (is_array($header)) {
    $output .= " <tr>";
    foreach ($header as $cell) {
      $output .= table_cell($cell, 1);
    }
Dries Buytaert's avatar
   
Dries Buytaert committed
253
    $output .= " </tr>\n";
Dries Buytaert's avatar
   
Dries Buytaert committed
254
255
256
257
258
259
  }

  /*
  ** Emit the table rows:
  */

Dries Buytaert's avatar
   
Dries Buytaert committed
260
261
262
263
264
265
266
267
  if (is_array($rows)) {
    foreach ($rows as $number => $row) {
      if ($number % 2 == 1) {
        $output .= " <tr class=\"light\">";
      }
      else {
        $output .= " <tr class=\"dark\">";
      }
Dries Buytaert's avatar
   
Dries Buytaert committed
268

Dries Buytaert's avatar
   
Dries Buytaert committed
269
270
271
      foreach ($row as $cell) {
        $output .= table_cell($cell, 0);
      }
Dries Buytaert's avatar
   
Dries Buytaert committed
272
      $output .= " </tr>\n";
Dries Buytaert's avatar
   
Dries Buytaert committed
273
274
275
    }
  }

Dries Buytaert's avatar
   
Dries Buytaert committed
276
  $output .= "</table>\n";
Dries Buytaert's avatar
   
Dries Buytaert committed
277
278
279
280

  return $output;
}

281
282
283
284
285
286
/**
 * Verify the syntax of the given e-mail address.  Empty e-mail addresses
 * are allowed.  See RFC 2822 for details.
 *
 * @param $mail  a email address
 */
Dries Buytaert's avatar
   
Dries Buytaert committed
287
function valid_email_address($mail) {
288
289
290
291
292
293
294
295
296
297
298
299
300
  $user = '[a-zA-Z0-9_\-\.\+\^!#\$%&*+\/\=\?\`\|\{\}~\']+';
  $domain = '(?:[a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\-]*[a-zA-Z0-9]\.?)+';
  $ipv4 = '[0-9]{1,3}(\.[0-9]{1,3}){3}';
  $ipv6 = '[0-9a-fA-F]{1,4}(\:[0-9a-fA-F]{1,4}){7}';

  if (preg_match("/^$user@($domain|(\[($ipv4|$ipv6)\]))$/", $mail)) {
    return 1;
  }
  else {
    return 0;
  }
}

Kjartan Mannes's avatar
Kjartan Mannes committed
301
302
303
304
/**
 * Format a single result entry of a search query:
 *
 * @param $item  a single search result as returned by <module>_search of type
Dries Buytaert's avatar
   
Dries Buytaert committed
305
 *               array("count" => ..., "link" => ..., "title" => ...,
Kjartan Mannes's avatar
Kjartan Mannes committed
306
307
308
 *               "user" => ..., "date" => ..., "keywords" => ...)
 * @param $type  module type of this item
 */
Dries Buytaert's avatar
   
Dries Buytaert committed
309
function search_item($item, $type) {
Dries Buytaert's avatar
   
Dries Buytaert committed
310
311
312
313
314
315
316
317
318
319

  /*
  ** Modules may implement the "search_item" hook in order to overwrite
  ** the default function to display search results.
  */

  if (module_hook($type, "search_item")) {
    $output = module_invoke($type, "search_item", $item);
  }
  else {
Dries Buytaert's avatar
   
Dries Buytaert committed
320
    $output .= " <b><u><a href=\"". $item["link"] ."\">". $item["title"] ."</a></u></b><br />";
Dries Buytaert's avatar
   
Dries Buytaert committed
321
322
323
    $output .= " <small>$type ". ($item["user"] ? " - ". $item["user"] : "") ."". ($item["date"] ? " - ". format_date($item["date"], "small") : "") ."</small>";
    $output .= "<br /><br />";
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
324
325
326
327

  return $output;
}

Kjartan Mannes's avatar
Kjartan Mannes committed
328
329
330
331
/**
 * Render a generic search form.
 *
 * "Generic" means "universal usable" - that is, usable not only from
Dries Buytaert's avatar
   
Dries Buytaert committed
332
 * 'site.com/search', but also as a simple seach box (without
Dries Buytaert's avatar
   
Dries Buytaert committed
333
334
 * "Restrict search to", help text, etc) from theme's header etc.
 * This means: provide options to only conditionally render certain
Kjartan Mannes's avatar
Kjartan Mannes committed
335
336
 * parts of this form.
 *
Dries Buytaert's avatar
   
Dries Buytaert committed
337
 * @param $action  Form action. Defaults to 'site.com/search'.
Dries Buytaert's avatar
   
Dries Buytaert committed
338
 * @param $keys   string containing keywords for the search.
Dries Buytaert's avatar
   
Dries Buytaert committed
339
 * @param $options != 0: Render additional form fields/text
Kjartan Mannes's avatar
Kjartan Mannes committed
340
341
 *                 ("Restrict search to", help text, etc).
 */
Dries Buytaert's avatar
   
Dries Buytaert committed
342
function search_form($action = NULL, $keys = NULL, $options = NULL) {
Dries Buytaert's avatar
   
Dries Buytaert committed
343
344

  if (!$action) {
Dries Buytaert's avatar
   
Dries Buytaert committed
345
    $action = url("search");
Dries Buytaert's avatar
   
Dries Buytaert committed
346
347
  }

Kjartan Mannes's avatar
Kjartan Mannes committed
348
349
  $output .= " <br /><input type=\"text\" size=\"50\" value=\"". check_form($keys) ."\" name=\"keys\" />";
  $output .= " <input type=\"submit\" value=\"". t("Search") ."\" />\n";
Dries Buytaert's avatar
   
Dries Buytaert committed
350
351
352
353
354
355
356

  if ($options != 0) {
    $output .= "<br />";
    $output .= t("Restrict search to") .": ";

    foreach (module_list() as $name) {
      if (module_hook($name, "search")) {
Kjartan Mannes's avatar
Kjartan Mannes committed
357
        $output .= " <input type=\"checkbox\" name=\"edit[type][$name]\" ". ($edit["type"][$name] ? " checked=\"checked\"" : "") ." /> ". t($name);
Dries Buytaert's avatar
   
Dries Buytaert committed
358
359
360
361
      }
    }
  }

Kjartan Mannes's avatar
Kjartan Mannes committed
362
363
  $form .= "<br />";

Dries Buytaert's avatar
   
Dries Buytaert committed
364
365
366
367
  return form($output, "post", $action);
}

/*
Kjartan Mannes's avatar
Kjartan Mannes committed
368
369
 * Collect the search results:
 */
Dries Buytaert's avatar
   
Dries Buytaert committed
370
function search_data($keys = NULL) {
Dries Buytaert's avatar
   
Dries Buytaert committed
371
372

  $edit = $_POST["edit"];
Dries Buytaert's avatar
   
Dries Buytaert committed
373

Dries Buytaert's avatar
   
Dries Buytaert committed
374
  if (isset($keys)) {
Dries Buytaert's avatar
   
Dries Buytaert committed
375
376
    foreach (module_list() as $name) {
      if (module_hook($name, "search") && (!$edit["type"] || $edit["type"][$name]) && ($result = module_invoke($name, "search", check_query($keys)))) {
Kjartan Mannes's avatar
Kjartan Mannes committed
377
        if ($name == "node" || $name == "comment") {
Dries Buytaert's avatar
   
Dries Buytaert committed
378
          $output .= "<p><b>". t("Matching ". $name ."s ranked in order of relevance") .":</b></p>";
Kjartan Mannes's avatar
Kjartan Mannes committed
379
380
        }
        else {
Dries Buytaert's avatar
   
Dries Buytaert committed
381
          $output .= "<p><b>". t("Matching ". $name ."s") .":</b></p>";
Kjartan Mannes's avatar
Kjartan Mannes committed
382
        }
Dries Buytaert's avatar
   
Dries Buytaert committed
383
384
385
386
387
388
389
390
391
392
        foreach ($result as $entry) {
          $output .= search_item($entry, $name);
        }
      }
    }
  }

  return $output;
}

Kjartan Mannes's avatar
Kjartan Mannes committed
393
394
395
/**
 * Display the search form and the resulting data.
 *
Dries Buytaert's avatar
   
Dries Buytaert committed
396
 * @param $type    If set, search only nodes of this type.
Kjartan Mannes's avatar
Kjartan Mannes committed
397
 *                 Otherwise, search all types.
Dries Buytaert's avatar
   
Dries Buytaert committed
398
 * @param $action  Form action. Defaults to 'site.com/search'.
Kjartan Mannes's avatar
Kjartan Mannes committed
399
 * @param $query   Query string. Defaults to global $keys.
Dries Buytaert's avatar
   
Dries Buytaert committed
400
 * @param $options != 0: Render additional form fields/text
Kjartan Mannes's avatar
Kjartan Mannes committed
401
402
 *                 ("Restrict search to", help text, etc).
 */
Dries Buytaert's avatar
   
Dries Buytaert committed
403
function search_type($type, $action = NULL, $keys = NULL, $options = NULL) {
Dries Buytaert's avatar
   
Dries Buytaert committed
404

Dries Buytaert's avatar
   
Dries Buytaert committed
405
  $_POST["edit"]["type"][$type] = "on";
Dries Buytaert's avatar
   
Dries Buytaert committed
406

Dries Buytaert's avatar
   
Dries Buytaert committed
407
  return search_form($action, $keys, $options) . "<br />". search_data($keys);
Dries Buytaert's avatar
   
Dries Buytaert committed
408
409
}

Dries Buytaert's avatar
   
Dries Buytaert committed
410

Dries Buytaert's avatar
   
Dries Buytaert committed
411
412
function drupal_goto($url) {

Dries Buytaert's avatar
   
Dries Buytaert committed
413
414
415
  /*
  ** Translate &amp; to simply &
  */
Dries Buytaert's avatar
   
Dries Buytaert committed
416

Dries Buytaert's avatar
   
Dries Buytaert committed
417
  $url = str_replace("&amp;", "&", $url);
Dries Buytaert's avatar
   
Dries Buytaert committed
418

Dries Buytaert's avatar
   
Dries Buytaert committed
419
420
421
422
423
  /*
  ** It is advised to use "drupal_goto()" instead of PHP's "header()" as
  ** "drupal_goto()" will append the user's session ID to the URI when PHP
  ** is compiled with "--enable-trans-sid".
  */
Dries Buytaert's avatar
   
Dries Buytaert committed
424
  if (!ini_get("session.use_trans_sid") || !session_id() || strstr($url, session_id())) {
Dries Buytaert's avatar
   
Dries Buytaert committed
425
426
427
    header("Location: $url");
  }
  else {
Dries Buytaert's avatar
   
Dries Buytaert committed
428
429
430
431
432
433
434
435
    $sid = session_name() . "=" . session_id();

    if (strstr($url, "?") && !strstr($url, $sid)) {
      header("Location: $url&". $sid);
    }
    else {
      header("Location: $url?". $sid);
    }
Dries Buytaert's avatar
   
Dries Buytaert committed
436
437
438
439
  }

  /*
  ** The "Location" header sends a REDIRECT status code to the http
Dries Buytaert's avatar
   
Dries Buytaert committed
440
  ** daemon.  In some cases this can go wrong, so we make sure none
Dries Buytaert's avatar
   
Dries Buytaert committed
441
442
443
444
445
446
447
448
449
450
451
  ** of the code /below/ gets executed when we redirect.
  */

  exit();
}

/*
** Stores the referer in a persistent variable:
*/

function referer_save() {
Dries Buytaert's avatar
   
Dries Buytaert committed
452
453
  if (!strstr(referer_uri(), request_uri())) {
    $_SESSION["referer"] = referer_uri();
Dries Buytaert's avatar
   
Dries Buytaert committed
454
455
456
457
458
459
460
461
  }
}

/*
** Restores the referer from a persistent variable:
*/

function referer_load() {
Dries Buytaert's avatar
   
Dries Buytaert committed
462
463
  if (isset($_SESSION["referer"])) {
    return $_SESSION["referer"];
Dries Buytaert's avatar
   
Dries Buytaert committed
464
465
466
467
468
469
  }
  else {
    return 0;
  }
}

470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
function xss_check_input_data($data) {

  if (is_array($data)) {
    /*
    ** Form data can contain a number of nested arrays.
    */

    foreach ($data as $key => $value) {
      xss_check_input_data($value);
    }
  }
  else {
    /*
    ** Detect evil input data.
    */

    // check attributes:
Dries Buytaert's avatar
   
Dries Buytaert committed
487
488
    $match  = preg_match("/\W(dynsrc|datasrc|data|lowsrc|on[a-z]+)\s*=[^>]+?>/i", $data);
    $match += preg_match("/\Wjavascript\s*:/i", $data);
489
490

    // check tags:
Dries Buytaert's avatar
   
Dries Buytaert committed
491
    $match += preg_match("/<\s*(applet|script|object|style|embed|form|blink|meta|html|frame|iframe|layer|ilayer|head|frameset|xml)/i", $data);
492
493
494
495
496
497
498

    if ($match) {
      watchdog("warning", "terminated request because of suspicious input data: ". drupal_specialchars($data));
      die("terminated request because of suspicious input data");
    }
  }
}
Dries Buytaert's avatar
   
Dries Buytaert committed
499

500
function check_url($uri) {
Dries Buytaert's avatar
   
Dries Buytaert committed
501
502
503
504
505
506
507
508
509
510
511
512
  $uri = htmlspecialchars($uri, ENT_QUOTES);

  /*
  ** We replace ( and ) with their entity equivalents to prevent XSS
  ** attacks.
  */

  $uri = strtr($uri, array("(" => "&040;", ")" => "&041;"));

  return $uri;
}

Dries Buytaert's avatar
   
Dries Buytaert committed
513
function check_form($text) {
Dries Buytaert's avatar
   
Dries Buytaert committed
514
  return drupal_specialchars($text, ENT_QUOTES);
Dries Buytaert's avatar
   
Dries Buytaert committed
515
516
}

Dries Buytaert's avatar
   
Dries Buytaert committed
517
function check_query($text) {
Dries Buytaert's avatar
   
Dries Buytaert committed
518
  return addslashes($text);
Dries Buytaert's avatar
   
Dries Buytaert committed
519
520
521
}

function filter($text) {
Dries Buytaert's avatar
   
Dries Buytaert committed
522

Dries Buytaert's avatar
   
Dries Buytaert committed
523
524
525
526
527
528
529
530
531
532
533
534
535
  $modules = module_list();

  /*
  ** Make sure the HTML filters that are part of the node module
  ** are run first.
  */

  if (in_array("node", $modules)) {
    $text = module_invoke("node", "filter", $text);
  }

  foreach ($modules as $name) {
    if (module_hook($name, "filter") && $name != "node") {
Dries Buytaert's avatar
   
Dries Buytaert committed
536
537
538
539
540
      $text = module_invoke($name, "filter", $text);
    }
  }

  return $text;
Dries Buytaert's avatar
   
Dries Buytaert committed
541
542
}

Dries Buytaert's avatar
   
Dries Buytaert committed
543
544
function rewrite_old_urls($text) {

Dries Buytaert's avatar
   
Dries Buytaert committed
545
546
547
548
  global $base_url;

  $end = substr($base_url, 12);

Dries Buytaert's avatar
   
Dries Buytaert committed
549
550
551
  /*
  ** This is a *temporary* filter to rewrite old-style URLs to new-style
  ** URLs (clean URLs).  Currently, URLs are being rewritten dynamically
Dries Buytaert's avatar
   
Dries Buytaert committed
552
553
  ** (ie. "on output"), however when these rewrite rules have been tested
  ** enough, we will use them to permanently rewrite the links in node
Dries Buytaert's avatar
   
Dries Buytaert committed
554
555
556
  ** and comment bodies.
  */

Dries Buytaert's avatar
   
Dries Buytaert committed
557
  if (variable_get("clean_url", "0") == "0") {
Dries Buytaert's avatar
   
Dries Buytaert committed
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
    /*
    ** Relative URLs:
    */

    // rewrite 'node.php?id=<number>[&cid=<number>]' style URLs:
    $text = eregi_replace("\"(node)\.php\?id=([[:digit:]]+)(&cid=)?([[:digit:]]*)", "\"?q=\\1/view/\\2/\\4", $text);

    // rewrite 'module.php?mod=<name>{&<op>=<value>}' style URLs:
    $text = ereg_replace("\"module\.php\?(&?[[:alpha:]]+=([[:alnum:]]+))(&?[[:alpha:]]+=([[:alnum:]]+))(&?[[:alpha:]]+=([[:alnum:]]+))", "\"?q=\\2/\\4/\\6" , $text);
    $text = ereg_replace("\"module\.php\?(&?[[:alpha:]]+=([[:alnum:]]+))(&?[[:alpha:]]+=([[:alnum:]]+))", "\"?q=\\2/\\4", $text);
    $text = ereg_replace("\"module\.php\?(&?[[:alpha:]]+=([[:alnum:]]+))", "\"?q=\\2", $text);

    /*
    ** Absolute URLs:
    */

Dries Buytaert's avatar
   
Dries Buytaert committed
574
    // rewrite 'node.php?id=<number>[&cid=<number>]' style URLs:
Dries Buytaert's avatar
   
Dries Buytaert committed
575
    $text = eregi_replace("$end/(node)\.php\?id=([[:digit:]]+)(&cid=)?([[:digit:]]*)", "$end/?q=\\1/view/\\2/\\4", $text);
Dries Buytaert's avatar
   
Dries Buytaert committed
576

Dries Buytaert's avatar
   
Dries Buytaert committed
577
    // rewrite 'module.php?mod=<name>{&<op>=<value>}' style URLs:
Dries Buytaert's avatar
   
Dries Buytaert committed
578
579
580
    $text = ereg_replace("$end/module\.php\?(&?[[:alpha:]]+=([[:alnum:]]+))(&?[[:alpha:]]+=([[:alnum:]]+))(&?[[:alpha:]]+=([[:alnum:]]+))", "$end/?q=\\2/\\4/\\6" , $text);
    $text = ereg_replace("$end/module\.php\?(&?[[:alpha:]]+=([[:alnum:]]+))(&?[[:alpha:]]+=([[:alnum:]]+))", "$end/?q=\\2/\\4", $text);
    $text = ereg_replace("$end/module\.php\?(&?[[:alpha:]]+=([[:alnum:]]+))", "\"$end/?q=\\2", $text);
Dries Buytaert's avatar
   
Dries Buytaert committed
581
582
  }
  else {
Dries Buytaert's avatar
   
Dries Buytaert committed
583
584
585
586
    /*
    ** Relative URLs:
    */

Dries Buytaert's avatar
   
Dries Buytaert committed
587
    // rewrite 'node.php?id=<number>[&cid=<number>]' style URLs:
Dries Buytaert's avatar
   
Dries Buytaert committed
588
    $text = eregi_replace("\"(node)\.php\?id=([[:digit:]]+)(&cid=)?([[:digit:]]*)", "\"\\1/view/\\2/\\4", $text);
Dries Buytaert's avatar
   
Dries Buytaert committed
589
590

    // rewrite 'module.php?mod=<name>{&<op>=<value>}' style URLs:
Dries Buytaert's avatar
   
Dries Buytaert committed
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
    $text = ereg_replace("\"module\.php\?(&?[[:alpha:]]+=([[:alnum:]]+))(&?[[:alpha:]]+=([[:alnum:]]+))(&?[[:alpha:]]+=([[:alnum:]]+))", "\"\\2/\\4/\\6", $text);
    $text = ereg_replace("\"module\.php\?(&?[[:alpha:]]+=([[:alnum:]]+))(&?[[:alpha:]]+=([[:alnum:]]+))", "\"\\2/\\4", $text);
    $text = ereg_replace("\"module\.php\?(&?[[:alpha:]]+=([[:alnum:]]+))", "\"\\2", $text);

    /*
    ** Absolute URLs:
    */

    // rewrite 'node.php?id=<number>[&cid=<number>]' style URLs:
    $text = eregi_replace("$end/(node)\.php\?id=([[:digit:]]+)(&cid=)?([[:digit:]]*)", "$end/\\1/view/\\2/\\4", $text);

    // rewrite 'module.php?mod=<name>{&<op>=<value>}' style URLs:
    $text = ereg_replace("$end/module\.php\?(&?[[:alpha:]]+=([[:alnum:]]+))(&?[[:alpha:]]+=([[:alnum:]]+))(&?[[:alpha:]]+=([[:alnum:]]+))", "$end/\\2/\\4/\\6", $text);
    $text = ereg_replace("$end/module\.php\?(&?[[:alpha:]]+=([[:alnum:]]+))(&?[[:alpha:]]+=([[:alnum:]]+))", "$end/\\2/\\4", $text);
    $text = ereg_replace("$end/module\.php\?(&?[[:alpha:]]+=([[:alnum:]]+))", "$end/\\2", $text);
}
Dries Buytaert's avatar
   
Dries Buytaert committed
607

Dries Buytaert's avatar
   
Dries Buytaert committed
608
609
610
  return $text;
}

Dries Buytaert's avatar
   
Dries Buytaert committed
611
function check_output($text) {
Dries Buytaert's avatar
   
Dries Buytaert committed
612
  if (isset($text)) {
Dries Buytaert's avatar
   
Dries Buytaert committed
613
614
615
616
    // filter content on output:
    $text = filter($text);

    // get the line breaks right:
Dries Buytaert's avatar
   
Dries Buytaert committed
617
    if (strip_tags($text, "<a><i><b><u><tt><code><cite><strong><img>") == $text) {
Dries Buytaert's avatar
   
Dries Buytaert committed
618
619
620
621
622
623
624
625
      $text = nl2br($text);
    }
  }
  else {
    $text = message_na();
  }

  return $text;
Dries Buytaert's avatar
   
Dries Buytaert committed
626
627
628
629
630
631
632
633
634
635
636
}

function check_file($filename) {
  if (is_uploaded_file($filename)) {
    return 1;
  }
  else {
    return 0;
  }
}

Dries Buytaert's avatar
   
Dries Buytaert committed
637
638
639
function format_rss_channel($title, $link, $description, $items, $language = "en", $args = array()) {
  // arbitrary elements may be added using the $args associative array

Dries Buytaert's avatar
   
Dries Buytaert committed
640
  $output .= "<channel>\n";
Dries Buytaert's avatar
   
Dries Buytaert committed
641
642
643
644
  $output .= " <title>". drupal_specialchars(strip_tags($title)) ."</title>\n";
  $output .= " <link>". drupal_specialchars(strip_tags($link)) ."</link>\n";
  $output .= " <description>". drupal_specialchars($description) ."</description>\n";
  $output .= " <language>". drupal_specialchars(strip_tags($language)) ."</language>\n";
Dries Buytaert's avatar
   
Dries Buytaert committed
645
  foreach ($args as $key => $value) {
Dries Buytaert's avatar
   
Dries Buytaert committed
646
    $output .= "<$key>". drupal_specialchars(strip_tags($value)) ."</$key>";
Dries Buytaert's avatar
   
Dries Buytaert committed
647
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
648
649
650
651
652
653
  $output .= $items;
  $output .= "</channel>\n";

  return $output;
}

Dries Buytaert's avatar
   
Dries Buytaert committed
654
655
656
function format_rss_item($title, $link, $description, $args = array()) {
  // arbitrary elements may be added using the $args associative array

Dries Buytaert's avatar
   
Dries Buytaert committed
657
  $output .= "<item>\n";
Dries Buytaert's avatar
   
Dries Buytaert committed
658
659
660
  $output .= " <title>". drupal_specialchars(strip_tags($title)) ."</title>\n";
  $output .= " <link>". drupal_specialchars(strip_tags($link)) ."</link>\n";
  $output .= " <description>". drupal_specialchars(check_output($description)) ."</description>\n";
Dries Buytaert's avatar
   
Dries Buytaert committed
661
  foreach ($args as $key => $value) {
Dries Buytaert's avatar
   
Dries Buytaert committed
662
    $output .= "<$key>". drupal_specialchars(strip_tags($value)) ."</$key>";
Dries Buytaert's avatar
   
Dries Buytaert committed
663
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
664
665
666
667
668
  $output .= "</item>\n";

  return $output;
}

Dries Buytaert's avatar
   
Dries Buytaert committed
669
670
671
672
673
674
675
676
677
678
679
680
681
682
/**
 * Formats a string with a count of items so that the string is pluralized
 * correctly.
 * format_plural calls t() by itself, make sure not to pass already localized
 * strings to it.
 *
 * @param $count    The item count to display.
 * @param $singular The string for the singular case. Please make sure it's clear
 *                  this is singular, to ease translation. ("1 new comment" instead of
 *                  "1 new").
 * @param $plural   The string for the plrual case. Please make sure it's clear
 *                  this is plural, to ease translation. Use %count in places of the
 *                  item count, as in "%count new comments".
 */
Dries Buytaert's avatar
   
Dries Buytaert committed
683
function format_plural($count, $singular, $plural) {
Dries Buytaert's avatar
   
Dries Buytaert committed
684
  return t($count == 1 ? $singular : $plural, array("%count" => $count));
Dries Buytaert's avatar
   
Dries Buytaert committed
685
686
687
}

function format_size($size) {
Dries Buytaert's avatar
   
Dries Buytaert committed
688
  $suffix = t("bytes");
Dries Buytaert's avatar
   
Dries Buytaert committed
689
690
  if ($size > 1024) {
    $size = round($size / 1024, 2);
Dries Buytaert's avatar
   
Dries Buytaert committed
691
    $suffix = t("KB");
Dries Buytaert's avatar
   
Dries Buytaert committed
692
693
694
  }
  if ($size > 1024) {
    $size = round($size / 1024, 2);
Dries Buytaert's avatar
   
Dries Buytaert committed
695
    $suffix = t("MB");
Dries Buytaert's avatar
   
Dries Buytaert committed
696
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
697
  return t("%size %suffix", array("%size" => $size, "%suffix" => $suffix));
Dries Buytaert's avatar
   
Dries Buytaert committed
698
699
}

Dries Buytaert's avatar
   
Dries Buytaert committed
700
function cache_get($key) {
Dries Buytaert's avatar
   
Dries Buytaert committed
701
  $cache = db_fetch_object(db_query("SELECT data, created FROM cache WHERE cid = '%s'", $key));
Dries Buytaert's avatar
   
Dries Buytaert committed
702
  return $cache->data ? $cache : 0;
Dries Buytaert's avatar
   
Dries Buytaert committed
703
704
705
}

function cache_set($cid, $data, $expire = 0) {
706
707
  if (db_fetch_object(db_query("SELECT cid FROM cache WHERE cid = '%s'", $cid))) {
    db_query("UPDATE cache SET data = '%s', created = %d, expire = %d WHERE cid = '%s'", $data, time(), $expire, $cid);
Dries Buytaert's avatar
   
Dries Buytaert committed
708
709
  }
  else {
Dries Buytaert's avatar
   
Dries Buytaert committed
710
    db_query("INSERT INTO cache (cid, data, created, expire) VALUES('%s', '%s', %d, %d)", $cid, $data, time(), $expire);
Dries Buytaert's avatar
   
Dries Buytaert committed
711
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
712
713
}

Dries Buytaert's avatar
   
Dries Buytaert committed
714
715
function cache_clear_all($cid = NULL) {
  if (empty($cid)) {
Dries Buytaert's avatar
   
Dries Buytaert committed
716
    db_query("DELETE FROM cache WHERE expire <> 0");
Dries Buytaert's avatar
   
Dries Buytaert committed
717
718
  }
  else {
Dries Buytaert's avatar
   
Dries Buytaert committed
719
    db_query("DELETE FROM cache WHERE cid = %d", $cid);
Dries Buytaert's avatar
   
Dries Buytaert committed
720
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
721
722
723
}

function page_set_cache() {
Dries Buytaert's avatar
   
Dries Buytaert committed
724
  global $user;
Dries Buytaert's avatar
   
Dries Buytaert committed
725

Dries Buytaert's avatar
   
Dries Buytaert committed
726
  if (!$user->uid && $_SERVER["REQUEST_METHOD"] == "GET") {
Dries Buytaert's avatar
   
Dries Buytaert committed
727
    if ($data = ob_get_contents()) {
Dries Buytaert's avatar
   
Dries Buytaert committed
728
      cache_set(request_uri(), $data, (time() + variable_get("cache_clear", 120)));
Dries Buytaert's avatar
   
Dries Buytaert committed
729
730
731
732
    }
  }
}

Dries Buytaert's avatar
   
Dries Buytaert committed
733
function page_get_cache() {
Dries Buytaert's avatar
   
Dries Buytaert committed
734
  global $user;
Dries Buytaert's avatar
   
Dries Buytaert committed
735

Dries Buytaert's avatar
   
Dries Buytaert committed
736
737
  $cache = NULL;

Dries Buytaert's avatar
   
Dries Buytaert committed
738
  if (!$user->uid && $_SERVER["REQUEST_METHOD"] == "GET") {
Dries Buytaert's avatar
   
Dries Buytaert committed
739
740
741
    $cache = cache_get(request_uri());

    if (empty($cache)) {
Dries Buytaert's avatar
   
Dries Buytaert committed
742
      ob_start();
Dries Buytaert's avatar
   
Dries Buytaert committed
743
744
    }
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
745

Dries Buytaert's avatar
   
Dries Buytaert committed
746
  return $cache;
Dries Buytaert's avatar
   
Dries Buytaert committed
747
748
749
}

function format_interval($timestamp) {
Dries Buytaert's avatar
   
Dries Buytaert committed
750
  $units = array("1 year|%count years" => 31536000, "1 week|%count weeks" => 604800, "1 day|%count days" => 86400, "1 hour|%count hours" => 3600, "1 min|%count min" => 60, "1 sec|%count sec" => 1);
Kjartan Mannes's avatar
Kjartan Mannes committed
751
  foreach ($units as $key=>$value) {
Dries Buytaert's avatar
   
Dries Buytaert committed
752
753
754
755
756
757
    $key = explode("|", $key);
    if ($timestamp >= $value) {
      $output .= ($output ? " " : "") . format_plural(floor($timestamp / $value), $key[0], $key[1]);
      $timestamp %= $value;
    }
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
758
  return ($output) ? $output : t("0 sec");
Dries Buytaert's avatar
   
Dries Buytaert committed
759
760
761
762
763
}

function format_date($timestamp, $type = "medium", $format = "") {
  global $user;

Kjartan Mannes's avatar
Kjartan Mannes committed
764
  $timestamp += ($user->timezone) ? $user->timezone - date("Z") : 0;
Dries Buytaert's avatar
   
Dries Buytaert committed
765
766
767

  switch ($type) {
    case "small":
Dries Buytaert's avatar
   
Dries Buytaert committed
768
      $date = date(variable_get("date_format_short", "m/d/Y - H:i"), $timestamp);
Dries Buytaert's avatar
   
Dries Buytaert committed
769
770
      break;
    case "medium":
771
      $date = date(variable_get("date_format_medium", "D, m/d/Y - H:i"), $timestamp);
Dries Buytaert's avatar
   
Dries Buytaert committed
772
773
      break;
    case "large":
774
      $date = date(variable_get("date_format_long", "l, F j, Y - H:i"), $timestamp);
Dries Buytaert's avatar
   
Dries Buytaert committed
775
776
777
778
      break;
    case "custom":
      for ($i = strlen($format); $i >= 0; $c = $format[--$i]) {
        if (strstr("DFlMSw", $c)) {
779
          $date = t(date($c, $timestamp)) . $date;
Dries Buytaert's avatar
   
Dries Buytaert committed
780
        }
781
        else if (strstr("AaBdgGhHiIjLmnOrstTUWYyZz", $c)) {
782
          $date = date($c, $timestamp) . $date;
Dries Buytaert's avatar
   
Dries Buytaert committed
783
784
        }
        else {
Kjartan Mannes's avatar
Kjartan Mannes committed
785
          $date = $c.$date;
Dries Buytaert's avatar
   
Dries Buytaert committed
786
787
788
789
        }
      }
      break;
    default:
790
      $date = date(variable_get("date_format_medium", "l, m/d/Y - H:i"), $timestamp);
Dries Buytaert's avatar
   
Dries Buytaert committed
791
792
793
794
795
796
797
  }
  return $date;
}

function format_name($object) {

  if ($object->uid && $object->name) {
Dries Buytaert's avatar
   
Dries Buytaert committed
798
    if (arg(0) == "admin") {
Dries Buytaert's avatar
   
Dries Buytaert committed
799
      $output = l($object->name, "admin/user/edit/$object->uid", array("title" => t("Administer user profile.")));
Dries Buytaert's avatar
   
Dries Buytaert committed
800
801
    }
    else {
Dries Buytaert's avatar
   
Dries Buytaert committed
802
      $output = l($object->name, "user/view/$object->uid", array("title" => t("View user profile.")));
Dries Buytaert's avatar
   
Dries Buytaert committed
803
    }
Dries Buytaert's avatar
   
Dries Buytaert committed
804
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
805
806
807
808
809
810
811
812
813
814
  else if ($object->name) {
    /*
    ** Sometimes modules display content composed by people who are
    ** not registers members of the site (i.e. mailing list or news
    ** aggregator modules).  This clause enables modules to display
    ** the true author of the content.
    */

    $output = $object->name;
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
815
  else {
Dries Buytaert's avatar
   
Dries Buytaert committed
816
    $output = t(variable_get("anonymous", "Anonymous"));
Dries Buytaert's avatar
   
Dries Buytaert committed
817
818
  }

Dries Buytaert's avatar
   
Dries Buytaert committed
819
  return $output;
Dries Buytaert's avatar
   
Dries Buytaert committed
820
821
822
}

function form($form, $method = "post", $action = 0, $options = 0) {
Dries Buytaert's avatar
   
Dries Buytaert committed
823
824

  if (!$action) {
825
    $action = request_uri();
Dries Buytaert's avatar
   
Dries Buytaert committed
826
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
827
  return "<form action=\"$action\" method=\"$method\"". ($options ? " $options" : "") .">\n$form\n</form>\n";
Dries Buytaert's avatar
   
Dries Buytaert committed
828
829
830
}

function form_item($title, $value, $description = 0) {
Dries Buytaert's avatar
   
Dries Buytaert committed
831
  return "<div class=\"form-item\">". ($title ? "<div class=\"title\">$title:</div>" : "") . $value . ($description ? "<div class=\"description\">$description</div>" : "") ."</div>\n";
Dries Buytaert's avatar
   
Dries Buytaert committed
832
833
}

Dries Buytaert's avatar
   
Dries Buytaert committed
834
function form_radio($title, $name, $value = 1, $checked = 0, $description = 0) {
835
  return form_item(0, "<input type=\"radio\" class=\"form-radio\" name=\"edit[$name]\" value=\"". $value ."\"". ($checked ? " checked=\"checked\"" : "") ." /> $title", $description);
Dries Buytaert's avatar
   
Dries Buytaert committed
836
837
}

838
function form_checkbox($title, $name, $value = 1, $checked = 0, $description = 0) {
839
  return form_hidden($name, 0) . form_item(0, "<input type=\"checkbox\" class=\"form-checkbox\" name=\"edit[$name]\" value=\"". $value ."\"". ($checked ? " checked=\"checked\"" : "") ." /> $title", $description);
Dries Buytaert's avatar
   
Dries Buytaert committed
840
841
842
}

function form_textfield($title, $name, $value, $size, $maxlength, $description = 0) {
Dries Buytaert's avatar
   
Dries Buytaert committed
843
  $size = $size ? " size=\"$size\"" : "";
Dries Buytaert's avatar
   
Dries Buytaert committed
844
  return form_item($title, "<input type=\"text\" maxlength=\"$maxlength\" class=\"form-text\" name=\"edit[$name]\"$size value=\"". check_form($value) ."\" />", $description);
Dries Buytaert's avatar
   
Dries Buytaert committed
845
846
847
}

function form_password($title, $name, $value, $size, $maxlength, $description = 0) {
Dries Buytaert's avatar
   
Dries Buytaert committed
848
849
  $size = $size ? " size=\"$size\"" : "";
  return form_item($title, "<input type=\"password\" class=\"form-password\" maxlength=\"$maxlength\" name=\"edit[$name]\"$size value=\"". check_form($value) ."\" />", $description);
Dries Buytaert's avatar
   
Dries Buytaert committed
850
851
852
}

function form_textarea($title, $name, $value, $cols, $rows, $description = 0) {
Dries Buytaert's avatar
   
Dries Buytaert committed
853
  $cols = $cols ? " cols=\"$cols\"" : "";
Dries Buytaert's avatar
   
Dries Buytaert committed
854
  module_invoke_all("textarea", $name);  // eg. optionally plug in a WYSIWYG editor
Dries Buytaert's avatar
   
Dries Buytaert committed
855
  return form_item($title, "<textarea wrap=\"virtual\"$cols rows=\"$rows\" name=\"edit[$name]\" id=\"edit[$name]\">". check_form($value) ."</textarea>", $description);
Dries Buytaert's avatar
   
Dries Buytaert committed
856
857
}

Dries Buytaert's avatar
   
Dries Buytaert committed
858
function form_select($title, $name, $value, $options, $description = 0, $extra = 0, $multiple = 0) {
Dries Buytaert's avatar
   
Dries Buytaert committed
859
  if (count($options) > 0) {
Kjartan Mannes's avatar
Kjartan Mannes committed
860
    foreach ($options as $key=>$choice) {
861
      $select .= "<option value=\"$key\"". (is_array($value) ? (in_array($key, $value) ? " selected=\"selected\"" : "") : ($value == $key ? " selected=\"selected\"" : "")) .">". check_form($choice) ."</option>";
Dries Buytaert's avatar
   
Dries Buytaert committed
862
    }
Kjartan Mannes's avatar
Kjartan Mannes committed
863
    return form_item($title, "<select name=\"edit[$name]". ($multiple ? "[]" : "") ."\"". ($multiple ? " multiple " : "") . ($extra ? " $extra" : "") .">$select</select>", $description);
Dries Buytaert's avatar
   
Dries Buytaert committed
864
865
866
  }
}

Dries Buytaert's avatar
   
Dries Buytaert committed
867
868
869
870
871
872
873
874
875
function form_radios($title, $name, $value, $options, $description = 0) {
  if (count($options) > 0) {
    foreach ($options as $key=>$choice) {
      $output .= form_radio($choice, $name, $key, ($key == $value));
    }
    return form_item($title, $output, $description);
  }
}

Dries Buytaert's avatar
   
Dries Buytaert committed
876
function form_file($title, $name, $size, $description = 0) {
877
  return form_item($title, "<input type=\"file\" class=\"form-file\" name=\"edit[$name]\" size=\"$size\" />\n", $description);
Dries Buytaert's avatar
   
Dries Buytaert committed
878
879
880
881
882
883
}

function form_hidden($name, $value) {
  return "<input type=\"hidden\" name=\"edit[$name]\" value=\"". check_form($value) ."\" />\n";
}

Dries Buytaert's avatar
   
Dries Buytaert committed
884
885
function form_submit($value, $name = "op") {
  return "<input type=\"submit\" class=\"form-submit\" name=\"$name\" value=\"". check_form($value) ."\" />\n";
Dries Buytaert's avatar
   
Dries Buytaert committed
886
887
}

Dries Buytaert's avatar
   
Dries Buytaert committed
888
function form_weight($title = NULL, $name = "weight", $value = 0, $delta = 10, $description = 0, $extra = 0) {
Dries Buytaert's avatar
   
Dries Buytaert committed
889
  for ($n = (-1 * $delta); $n <= $delta; $n++) {
Dries Buytaert's avatar
   
Dries Buytaert committed
890
891
892
893
894
895
    $weights[$n] = $n;
  }

  return form_select($title, $name, $value, $weights, $description, $extra);
}

Dries Buytaert's avatar
   
Dries Buytaert committed
896
897
898
899
function form_allowed_tags_text() {
  return variable_get("allowed_html", "") ? (t("Allowed HTML tags") .": ". htmlspecialchars(variable_get("allowed_html", ""))) : "";
}

Dries Buytaert's avatar
   
Dries Buytaert committed
900
function url($url = NULL, $query = NULL) {
Dries Buytaert's avatar
   
Dries Buytaert committed
901
  global $base_url;
Dries Buytaert's avatar
   
Dries Buytaert committed
902

Dries Buytaert's avatar
   
Dries Buytaert committed
903
904
905
906
907
908
909
910
911
912
913
  static $script;

  if (empty($script)) {
    /*
    ** On some webservers such as IIS we can't omit "index.php".  As such we
    ** generate "index.php?q=foo" instead of "?q=foo" on anything that is not
    ** Apache.
    */
    $script = (strpos($_SERVER["SERVER_SOFTWARE"], "Apache") === false) ? "index.php" : "";
  }

Dries Buytaert's avatar
   
Dries Buytaert committed
914
  if (variable_get("clean_url", "0") == "0") {
Dries Buytaert's avatar
   
Dries Buytaert committed
915
916
    if (isset($url)) {
      if (isset($query)) {
Dries Buytaert's avatar
   
Dries Buytaert committed
917
        return "$base_url/$script?q=$url&amp;$query";
Dries Buytaert's avatar
   
Dries Buytaert committed
918
919
      }
      else {
Dries Buytaert's avatar
   
Dries Buytaert committed
920
        return "$base_url/$script?q=$url";
Dries Buytaert's avatar
   
Dries Buytaert committed
921
      }
Dries Buytaert's avatar
   
Dries Buytaert committed
922
923
    }
    else {
Dries Buytaert's avatar
   
Dries Buytaert committed
924
      if (isset($query)) {
Dries Buytaert's avatar
   
Dries Buytaert committed
925
        return "$base_url/$script?$query";
Dries Buytaert's avatar
   
Dries Buytaert committed
926
927
      }
      else {
Dries Buytaert's avatar
   
Dries Buytaert committed
928
        return "$base_url/";
Dries Buytaert's avatar
   
Dries Buytaert committed
929
      }
Dries Buytaert's avatar
   
Dries Buytaert committed
930
931
932
    }
  }
  else {
Dries Buytaert's avatar
   
Dries Buytaert committed
933
934
    if (isset($url)) {
      if (isset($query)) {
Dries Buytaert's avatar
   
Dries Buytaert committed
935
        return "$base_url/$url?$query";
Dries Buytaert's avatar
   
Dries Buytaert committed
936
937
      }
      else {
Dries Buytaert's avatar
   
Dries Buytaert committed
938
        return "$base_url/$url";
Dries Buytaert's avatar
   
Dries Buytaert committed
939
      }
Dries Buytaert's avatar
   
Dries Buytaert committed
940
    }
Dries Buytaert's avatar
   
Dries Buytaert committed
941
    else {
Dries Buytaert's avatar
   
Dries Buytaert committed
942
      if (isset($query)) {
Dries Buytaert's avatar
   
Dries Buytaert committed
943
        return "$base_url/$script?$query";
Dries Buytaert's avatar
   
Dries Buytaert committed
944
945
      }
      else {
Dries Buytaert's avatar
   
Dries Buytaert committed
946
        return "$base_url/";
Dries Buytaert's avatar
   
Dries Buytaert committed
947
      }
Dries Buytaert's avatar
   
Dries Buytaert committed
948
    }
Dries Buytaert's avatar
   
Dries Buytaert committed
949
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
950
951
}

Dries Buytaert's avatar
   
Dries Buytaert committed
952
function l($text, $url, $attributes = array(), $query = NULL) {
Dries Buytaert's avatar
   
Dries Buytaert committed
953

Dries Buytaert's avatar
   
Dries Buytaert committed
954
955
956
957
  $t = array();
  foreach ($attributes as $key => $value) {
    $t[] = "$key=\"$value\"";
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
958
959

  return "<a href=\"". url($url, $query) ."\" ". implode($t, " ") .">$text</a>";
Dries Buytaert's avatar
   
Dries Buytaert committed
960
961
}

Dries Buytaert's avatar
   
Dries Buytaert committed
962
function field_get($string, $name) {
963
  ereg(",?$name=([^,]+)", ", $string", $regs);
Dries Buytaert's avatar
   
Dries Buytaert committed
964
965
966
967
968
  return $regs[1];
}

function field_set($string, $name, $value) {
  $rval = ereg_replace(",$name=[^,]+", "", ",$string");
Dries Buytaert's avatar
   
Dries Buytaert committed
969
  if (isset($value)) {
Kjartan Mannes's avatar
Kjartan Mannes committed
970
971
    $rval .= ($rval == "," ? "" : ",") ."$name=$value";
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
972
973
974
975
  return substr($rval, 1);
}

function link_page() {
Dries Buytaert's avatar
   
Dries Buytaert committed
976
  global $custom_links, $base_url;
Dries Buytaert's avatar
   
Dries Buytaert committed
977

978
979
980
981
  if (is_array($custom_links)) {
    return $custom_links;
  }
  else {
Dries Buytaert's avatar
   
Dries Buytaert committed
982
    $links = module_invoke_all("link", "page");
983
    array_unshift($links, "<a href=\"$base_url/\" title=\"". t("Return to the main page.") ."\">". t("home") ."</a>");
984
    return $links;
Dries Buytaert's avatar
   
Dries Buytaert committed
985
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
986
}
Dries Buytaert's avatar
   
Dries Buytaert committed
987
988

function link_node($node, $main = 0) {
Dries Buytaert's avatar
   
Dries Buytaert committed
989
  return module_invoke_all("link", "node", $node, $main);
Dries Buytaert's avatar
   
Dries Buytaert committed
990
991
992
993
}

function timer_start() {
  global $timer;
Dries Buytaert's avatar
   
Dries Buytaert committed
994
995
  list($usec, $sec) = explode(" ", microtime());
  $timer = (float)$usec + (float)$sec;
Dries Buytaert's avatar
   
Dries Buytaert committed
996
997
}

Dries Buytaert's avatar
   
Dries Buytaert committed
998
function drupal_page_header() {
999

Dries Buytaert's avatar
   
Dries Buytaert committed
1000
  if (variable_get("dev_timer", 0)) {
For faster browsing, not all history is shown. View entire blame