common.inc 27.5 KB
Newer Older
Dries Buytaert's avatar
   
Dries Buytaert committed
1
2
3
4
<?php
// $Id$

function conf_init() {
Dries Buytaert's avatar
   
Dries Buytaert committed
5
  global $HTTP_HOST, $PHP_SELF;
Dries Buytaert's avatar
   
Dries Buytaert committed
6
7
8
9
10
11
12

  /*
  ** 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
13
14
15
  $uri = $PHP_SELF;

  $file = strtolower(strtr($HTTP_HOST . substr($uri, 0, strrpos($uri, "/")), "/:", ".."));
Dries Buytaert's avatar
   
Dries Buytaert committed
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31

  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
32
  if (($errno == 1 || $errno == 2 || $errno == 4 || $errno == 256) && error_reporting()) {
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', '%s')", $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
66
67
68
69
70
71
72
function arg($index) {

  global $q;
  static $arguments;

  if (empty($arguments)) {
    $arguments = explode("/", $q);
  }

  return $arguments[$index];
}

Dries Buytaert's avatar
   
Dries Buytaert committed
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
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
101
function request_uri() {
Dries Buytaert's avatar
   
Dries Buytaert committed
102
103
104
105
  // since request_uri() is only available on apache, we generate equivalent using other environment vars.

  global $REQUEST_URI, $PATH_INFO, $QUERY_STRING;

Dries Buytaert's avatar
   
Dries Buytaert committed
106
  if (isset($REQUEST_URI)) {
Dries Buytaert's avatar
   
Dries Buytaert committed
107
108
109
    return $REQUEST_URI;
  }
  else {
110
    return $PATH_INFO ."?". $QUERY_STRING;
Dries Buytaert's avatar
   
Dries Buytaert committed
111
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
112
113
}

Dries Buytaert's avatar
   
Dries Buytaert committed
114
function message_access() {
Dries Buytaert's avatar
   
Dries Buytaert committed
115
  return t("You are not authorized to access this page.");
Dries Buytaert's avatar
   
Dries Buytaert committed
116
117
118
119
120
121
122
123
124
125
}

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
126
127
function locale_init() {
  global $languages, $user;
Dries Buytaert's avatar
   
Dries Buytaert committed
128
129
130
131
132
133
  if ($user->uid && $languages[$user->language]) {
    return $user->language;
  }
  else {
    return key($languages);
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
134
135
}

Dries Buytaert's avatar
   
Dries Buytaert committed
136
function t($string, $args = 0) {
Dries Buytaert's avatar
   
Dries Buytaert committed
137
  global $languages;
138

Dries Buytaert's avatar
   
Dries Buytaert committed
139
140
141
142
143
144
145
  /*
  ** 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
146
147
  **           account</a> before viewing the next page.", array("%url"
  **           => url("user/register")));
Dries Buytaert's avatar
   
Dries Buytaert committed
148
149
  */

150
151
  $string = ($languages && function_exists("locale") ? locale($string) : $string);

Dries Buytaert's avatar
   
Dries Buytaert committed
152
153
  if (!$args) {
    return $string;
Kjartan Mannes's avatar
Kjartan Mannes committed
154
155
  }
  else {
Dries Buytaert's avatar
   
Dries Buytaert committed
156
157
    return strtr($string, $args);
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
158
159
160
161
162
163
}

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
164
      $conf[$variable->name] = unserialize($variable->value);
Dries Buytaert's avatar
   
Dries Buytaert committed
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
    }
  }

  return $conf;
}

function variable_get($name, $default, $object = 0) {
  global $conf;

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

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

Dries Buytaert's avatar
   
Dries Buytaert committed
180
  db_query("DELETE FROM variable WHERE name = '%s'", $name);
Dries Buytaert's avatar
   
Dries Buytaert committed
181
  db_query("INSERT INTO variable (name, value) VALUES ('%s', '%s')", $name, serialize($value));
Dries Buytaert's avatar
   
Dries Buytaert committed
182
183
184
185
186
187
188

  $conf[$name] = $value;
}

function variable_del($name) {
  global $conf;

Dries Buytaert's avatar
   
Dries Buytaert committed
189
  db_query("DELETE FROM variable WHERE name = '%s'", $name);
Dries Buytaert's avatar
   
Dries Buytaert committed
190
191
192
193

  unset($conf[$name]);
}

Dries Buytaert's avatar
   
Dries Buytaert committed
194
function table_cell($cell, $header = 0) {
Dries Buytaert's avatar
   
Dries Buytaert committed
195
  if (is_array($cell)) {
Dries Buytaert's avatar
   
Dries Buytaert committed
196
197
198
199
200
201
202
203
204
205
206
    $data = $cell["data"];
    foreach ($cell as $key => $value) {
      if ($key != "data")  {
        $attributes .= " $key=\"$value\"";
      }
    }
  }
  else {
    $data = $cell;
  }

Dries Buytaert's avatar
   
Dries Buytaert committed
207
  if ($header) {
Dries Buytaert's avatar
   
Dries Buytaert committed
208
209
210
211
212
213
214
215
216
217
218
    $output = "<th$attributes>$data</th>";
  }
  else {
    $output = "<td$attributes>$data</td>";
  }

  return $output;
}

function table($header, $rows) {

219
  $output = "<table>\n";
Dries Buytaert's avatar
   
Dries Buytaert committed
220
221
222
223
224

  /*
  ** Emit the table header:
  */

Dries Buytaert's avatar
   
Dries Buytaert committed
225
226
227
228
229
  if (is_array($header)) {
    $output .= " <tr>";
    foreach ($header as $cell) {
      $output .= table_cell($cell, 1);
    }
Dries Buytaert's avatar
   
Dries Buytaert committed
230
    $output .= " </tr>\n";
Dries Buytaert's avatar
   
Dries Buytaert committed
231
232
233
234
235
236
  }

  /*
  ** Emit the table rows:
  */

Dries Buytaert's avatar
   
Dries Buytaert committed
237
238
239
240
241
242
243
244
  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
245

Dries Buytaert's avatar
   
Dries Buytaert committed
246
247
248
      foreach ($row as $cell) {
        $output .= table_cell($cell, 0);
      }
Dries Buytaert's avatar
   
Dries Buytaert committed
249
      $output .= " </tr>\n";
Dries Buytaert's avatar
   
Dries Buytaert committed
250
251
252
    }
  }

Dries Buytaert's avatar
   
Dries Buytaert committed
253
  $output .= "</table>\n";
Dries Buytaert's avatar
   
Dries Buytaert committed
254
255
256
257

  return $output;
}

258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
/**
 * Verify the syntax of the given e-mail address.  Empty e-mail addresses
 * are allowed.  See RFC 2822 for details.
 *
 * @param $mail  a email address
 */
function validate_email_address($mail) {
  $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
278
279
280
281
/**
 * 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
282
 *               array("count" => ..., "link" => ..., "title" => ...,
Kjartan Mannes's avatar
Kjartan Mannes committed
283
284
285
 *               "user" => ..., "date" => ..., "keywords" => ...)
 * @param $type  module type of this item
 */
Dries Buytaert's avatar
   
Dries Buytaert committed
286
function search_item($item, $type) {
Dries Buytaert's avatar
   
Dries Buytaert committed
287
288
289
290
291
292
293
294
295
296
297
298
299
300

  /*
  ** 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 {
    $output .= " <b>". $item["count"] ."&nbsp;&nbsp;<u><a href=\"". $item["link"] ."\">". $item["title"] ."</a></u></b><br />";
    $output .= " <small>$type ". ($item["user"] ? " - ". $item["user"] : "") ."". ($item["date"] ? " - ". format_date($item["date"], "small") : "") ."</small>";
    $output .= "<br /><br />";
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
301
302
303
304

  return $output;
}

Kjartan Mannes's avatar
Kjartan Mannes committed
305
306
307
308
/**
 * Render a generic search form.
 *
 * "Generic" means "universal usable" - that is, usable not only from
Dries Buytaert's avatar
   
Dries Buytaert committed
309
 * 'site.com/search', but also as a simple seach box (without
Dries Buytaert's avatar
   
Dries Buytaert committed
310
311
 * "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
312
313
 * parts of this form.
 *
Dries Buytaert's avatar
   
Dries Buytaert committed
314
 * @param $action  Form action. Defaults to 'site.com/search'.
Kjartan Mannes's avatar
Kjartan Mannes committed
315
 * @param $query   Query string. Defaults to global $keys.
Dries Buytaert's avatar
   
Dries Buytaert committed
316
 * @param $options != 0: Render additional form fields/text
Kjartan Mannes's avatar
Kjartan Mannes committed
317
318
 *                 ("Restrict search to", help text, etc).
 */
Dries Buytaert's avatar
   
Dries Buytaert committed
319
320
321
322
function search_form($action = 0, $query = 0, $options = 0) {
  global $keys;

  if (!$action) {
Dries Buytaert's avatar
   
Dries Buytaert committed
323
    $action = url("search");
Dries Buytaert's avatar
   
Dries Buytaert committed
324
325
326
327
328
329
  }

  if (!$query) {
    $query = $keys;
  }

Kjartan Mannes's avatar
Kjartan Mannes committed
330
331
  $output .= " <br /><input type=\"text\" size=\"50\" value=\"". check_form($keys) ."\" name=\"keys\" />";
  $output .= " <input type=\"submit\" value=\"". t("Search") ."\" />\n";
Dries Buytaert's avatar
   
Dries Buytaert committed
332
333
334
335
336
337
338

  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
339
        $output .= " <input type=\"checkbox\" name=\"edit[type][$name]\" ". ($edit["type"][$name] ? " checked=\"checked\"" : "") ." /> ". t($name);
Dries Buytaert's avatar
   
Dries Buytaert committed
340
341
342
343
      }
    }
  }

Kjartan Mannes's avatar
Kjartan Mannes committed
344
345
  $form .= "<br />";

Dries Buytaert's avatar
   
Dries Buytaert committed
346
347
348
349
  return form($output, "post", $action);
}

/*
Kjartan Mannes's avatar
Kjartan Mannes committed
350
351
 * Collect the search results:
 */
Dries Buytaert's avatar
   
Dries Buytaert committed
352
353
354
function search_data() {
  global $keys, $edit;

Dries Buytaert's avatar
   
Dries Buytaert committed
355
  if (isset($keys)) {
Dries Buytaert's avatar
   
Dries Buytaert committed
356
357
    foreach (module_list() as $name) {
      if (module_hook($name, "search") && (!$edit["type"] || $edit["type"][$name]) && ($result = module_invoke($name, "search", check_query($keys)))) {
Kjartan Mannes's avatar
Kjartan Mannes committed
358
        if ($name == "node" || $name == "comment") {
Dries Buytaert's avatar
   
Dries Buytaert committed
359
          $output .= "<p><b>". t("Matching ". $name ."s ranked in order of relevance") .":</b></p>";
Kjartan Mannes's avatar
Kjartan Mannes committed
360
361
        }
        else {
Dries Buytaert's avatar
   
Dries Buytaert committed
362
          $output .= "<p><b>". t("Matching ". $name ."s") .":</b></p>";
Kjartan Mannes's avatar
Kjartan Mannes committed
363
        }
Dries Buytaert's avatar
   
Dries Buytaert committed
364
365
366
367
368
        foreach ($result as $entry) {
          $output .= search_item($entry, $name);
        }
      }
    }
Kjartan Mannes's avatar
Kjartan Mannes committed
369
    if (!$output) {
Dries Buytaert's avatar
   
Dries Buytaert committed
370
371
372
373
374
375
376
      $output .= t("Your search yielded no results.");
    }
  }

  return $output;
}

Kjartan Mannes's avatar
Kjartan Mannes committed
377
378
379
/**
 * Display the search form and the resulting data.
 *
Dries Buytaert's avatar
   
Dries Buytaert committed
380
 * @param $type    If set, search only nodes of this type.
Kjartan Mannes's avatar
Kjartan Mannes committed
381
 *                 Otherwise, search all types.
Dries Buytaert's avatar
   
Dries Buytaert committed
382
 * @param $action  Form action. Defaults to 'site.com/search'.
Kjartan Mannes's avatar
Kjartan Mannes committed
383
 * @param $query   Query string. Defaults to global $keys.
Dries Buytaert's avatar
   
Dries Buytaert committed
384
 * @param $options != 0: Render additional form fields/text
Kjartan Mannes's avatar
Kjartan Mannes committed
385
386
 *                 ("Restrict search to", help text, etc).
 */
Dries Buytaert's avatar
   
Dries Buytaert committed
387
388
389
function search_type($type = 0, $action = 0, $query = 0, $options = 0) {
  global $edit;

Dries Buytaert's avatar
   
Dries Buytaert committed
390
  if (isset($type)) {
Dries Buytaert's avatar
   
Dries Buytaert committed
391
392
393
394
395
396
    $edit["type"][$type] = "on";
  }

  return search_form($action, $query, $options) . search_data();
}

Dries Buytaert's avatar
   
Dries Buytaert committed
397

Dries Buytaert's avatar
   
Dries Buytaert committed
398
399
function drupal_goto($url) {

Dries Buytaert's avatar
   
Dries Buytaert committed
400
401
402
  /*
  ** Translate &amp; to simply &
  */
Dries Buytaert's avatar
   
Dries Buytaert committed
403

Dries Buytaert's avatar
Dries Buytaert committed
404
  $url = str_replace("&amp;", "&amp;", $url);
Dries Buytaert's avatar
   
Dries Buytaert committed
405

Dries Buytaert's avatar
   
Dries Buytaert committed
406
407
408
409
410
  /*
  ** 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
411
  if (!ini_get("session.use_trans_sid") || !session_id() || strstr($url, session_id())) {
Dries Buytaert's avatar
   
Dries Buytaert committed
412
413
414
    header("Location: $url");
  }
  else {
Dries Buytaert's avatar
   
Dries Buytaert committed
415
416
417
418
419
420
421
422
    $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
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
  }

  /*
  ** The "Location" header sends a REDIRECT status code to the http
  ** deamon.  In some cases this can go wrong, so we make sure none
  ** 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
439
  global $referer, $HTTP_REFERER;
Dries Buytaert's avatar
   
Dries Buytaert committed
440

Dries Buytaert's avatar
   
Dries Buytaert committed
441
  if (!strstr($HTTP_REFERER, request_uri())) {
Dries Buytaert's avatar
   
Dries Buytaert committed
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
    $referer = $HTTP_REFERER;
    session_register("referer");
  }
}

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

function referer_load() {
  global $referer;

  if (session_is_registered("referer")) {
    return $referer;
  }
  else {
    return 0;
  }
}

function check_form($text) {
Dries Buytaert's avatar
   
Dries Buytaert committed
463
  return htmlspecialchars($text);
Dries Buytaert's avatar
   
Dries Buytaert committed
464
465
}

Dries Buytaert's avatar
   
Dries Buytaert committed
466
function check_query($text) {
Dries Buytaert's avatar
   
Dries Buytaert committed
467
  return addslashes($text);
Dries Buytaert's avatar
   
Dries Buytaert committed
468
469
}

Dries Buytaert's avatar
   
Dries Buytaert committed
470
function check_input($text) {
Dries Buytaert's avatar
   
Dries Buytaert committed
471
  return addslashes($text);
Dries Buytaert's avatar
   
Dries Buytaert committed
472
473
474
}

function filter($text) {
Dries Buytaert's avatar
   
Dries Buytaert committed
475
476
477
478
479
480
481
482

  foreach (module_list() as $name) {
    if (module_hook($name, "filter")) {
      $text = module_invoke($name, "filter", $text);
    }
  }

  return $text;
Dries Buytaert's avatar
   
Dries Buytaert committed
483
484
}

Dries Buytaert's avatar
   
Dries Buytaert committed
485
486
function rewrite_old_urls($text) {

Dries Buytaert's avatar
   
Dries Buytaert committed
487
488
489
490
  global $base_url;

  $end = substr($base_url, 12);

Dries Buytaert's avatar
   
Dries Buytaert committed
491
492
493
  /*
  ** 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
494
495
  ** (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
496
497
498
  ** and comment bodies.
  */

Dries Buytaert's avatar
   
Dries Buytaert committed
499
  if (variable_get("clean_url", "0") == "0") {
Dries Buytaert's avatar
   
Dries Buytaert committed
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
    /*
    ** 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
516
    // rewrite 'node.php?id=<number>[&cid=<number>]' style URLs:
Dries Buytaert's avatar
   
Dries Buytaert committed
517
    $text = eregi_replace("$end/(node)\.php\?id=([[:digit:]]+)(&cid=)?([[:digit:]]*)", "$end/?q=\\1/view/\\2/\\4", $text);
Dries Buytaert's avatar
   
Dries Buytaert committed
518

Dries Buytaert's avatar
   
Dries Buytaert committed
519
    // rewrite 'module.php?mod=<name>{&<op>=<value>}' style URLs:
Dries Buytaert's avatar
   
Dries Buytaert committed
520
521
522
    $text = ereg_replace("$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
523
524
  }
  else {
Dries Buytaert's avatar
   
Dries Buytaert committed
525
526
527
528
    /*
    ** Relative URLs:
    */

Dries Buytaert's avatar
   
Dries Buytaert committed
529
    // rewrite 'node.php?id=<number>[&cid=<number>]' style URLs:
Dries Buytaert's avatar
   
Dries Buytaert committed
530
    $text = eregi_replace("\"(node)\.php\?id=([[:digit:]]+)(&cid=)?([[:digit:]]*)", "\"\\1/view/\\2/\\4", $text);
Dries Buytaert's avatar
   
Dries Buytaert committed
531
532

    // rewrite 'module.php?mod=<name>{&<op>=<value>}' style URLs:
Dries Buytaert's avatar
   
Dries Buytaert committed
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
    $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
549

Dries Buytaert's avatar
   
Dries Buytaert committed
550
551
552
  return $text;
}

Dries Buytaert's avatar
   
Dries Buytaert committed
553
function check_output($text) {
Dries Buytaert's avatar
   
Dries Buytaert committed
554
  if (isset($text)) {
Dries Buytaert's avatar
   
Dries Buytaert committed
555
556
557
558

    // temporary: for development purpose
    $text = rewrite_old_urls($text);

Dries Buytaert's avatar
   
Dries Buytaert committed
559
    if (strip_tags($text, "<a><i><b><u><tt><code><cite><strong><img>") == $text) {
Dries Buytaert's avatar
   
Dries Buytaert committed
560
561
562
563
564
565
566
567
      $text = nl2br($text);
    }
  }
  else {
    $text = message_na();
  }

  return $text;
Dries Buytaert's avatar
   
Dries Buytaert committed
568
569
570
571
572
573
574
575
576
577
578
}

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

Dries Buytaert's avatar
   
Dries Buytaert committed
579
580
581
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
582
583
584
585
586
  $output .= "<channel>\n";
  $output .= " <title>". htmlentities(strip_tags($title)) ."</title>\n";
  $output .= " <link>". htmlentities(strip_tags($link)) ."</link>\n";
  $output .= " <description>". htmlentities($description) ."</description>\n";
  $output .= " <language>". htmlentities(strip_tags($language)) ."</language>\n";
Dries Buytaert's avatar
   
Dries Buytaert committed
587
  foreach ($args as $key => $value) {
588
    $output .= "<$key>". htmlentities(strip_tags($value)) ."</$key>";
Dries Buytaert's avatar
   
Dries Buytaert committed
589
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
590
591
592
593
594
595
  $output .= $items;
  $output .= "</channel>\n";

  return $output;
}

Dries Buytaert's avatar
   
Dries Buytaert committed
596
597
598
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
599
600
601
  $output .= "<item>\n";
  $output .= " <title>". htmlentities(strip_tags($title)) ."</title>\n";
  $output .= " <link>". htmlentities(strip_tags($link)) ."</link>\n";
Dries Buytaert's avatar
   
Dries Buytaert committed
602
  $output .= " <description>". htmlentities(check_output($description)) ."</description>\n";
Dries Buytaert's avatar
   
Dries Buytaert committed
603
  foreach ($args as $key => $value) {
604
    $output .= "<$key>". htmlentities(strip_tags($value)) ."</$key>";
Dries Buytaert's avatar
   
Dries Buytaert committed
605
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
606
607
608
609
610
  $output .= "</item>\n";

  return $output;
}

Dries Buytaert's avatar
   
Dries Buytaert committed
611
612
613
614
615
616
617
618
619
620
621
622
623
624
/**
 * 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
625
function format_plural($count, $singular, $plural) {
Dries Buytaert's avatar
   
Dries Buytaert committed
626
  return t($count == 1 ? $singular : $plural, array("%count" => $count));
Dries Buytaert's avatar
   
Dries Buytaert committed
627
628
629
}

function format_size($size) {
Dries Buytaert's avatar
   
Dries Buytaert committed
630
  $suffix = t("bytes");
Dries Buytaert's avatar
   
Dries Buytaert committed
631
632
  if ($size > 1024) {
    $size = round($size / 1024, 2);
Dries Buytaert's avatar
   
Dries Buytaert committed
633
    $suffix = t("KB");
Dries Buytaert's avatar
   
Dries Buytaert committed
634
635
636
  }
  if ($size > 1024) {
    $size = round($size / 1024, 2);
Dries Buytaert's avatar
   
Dries Buytaert committed
637
    $suffix = t("MB");
Dries Buytaert's avatar
   
Dries Buytaert committed
638
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
639
  return t("%size %suffix", array("%size" => $size, "%suffix" => $suffix));
Dries Buytaert's avatar
   
Dries Buytaert committed
640
641
}

Dries Buytaert's avatar
   
Dries Buytaert committed
642
function cache_get($key) {
Dries Buytaert's avatar
   
Dries Buytaert committed
643
  $cache = db_fetch_object(db_query("SELECT data, created FROM cache WHERE cid = '%d'", $key));
Dries Buytaert's avatar
   
Dries Buytaert committed
644
  return $cache->data ? $cache : 0;
Dries Buytaert's avatar
   
Dries Buytaert committed
645
646
647
}

function cache_set($cid, $data, $expire = 0) {
648
649
  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
650
651
  }
  else {
Dries Buytaert's avatar
   
Dries Buytaert committed
652
    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
653
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
654
655
}

Dries Buytaert's avatar
   
Dries Buytaert committed
656
657
function cache_clear_all($cid = NULL) {
  if (empty($cid)) {
Dries Buytaert's avatar
   
Dries Buytaert committed
658
    db_query("DELETE FROM cache WHERE expire <> 0");
Dries Buytaert's avatar
   
Dries Buytaert committed
659
660
  }
  else {
Dries Buytaert's avatar
   
Dries Buytaert committed
661
    db_query("DELETE FROM cache WHERE cid = '%d'", $cid);
Dries Buytaert's avatar
   
Dries Buytaert committed
662
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
663
664
665
}

function page_set_cache() {
Dries Buytaert's avatar
   
Dries Buytaert committed
666
  global $user, $REQUEST_METHOD;
Dries Buytaert's avatar
   
Dries Buytaert committed
667
668

  if (!$user->uid && $REQUEST_METHOD == "GET") {
Dries Buytaert's avatar
   
Dries Buytaert committed
669
    if ($data = ob_get_contents()) {
Dries Buytaert's avatar
   
Dries Buytaert committed
670
      cache_set(request_uri(), $data, (time() + variable_get("cache_clear", 120)));
Dries Buytaert's avatar
   
Dries Buytaert committed
671
672
673
674
    }
  }
}

Dries Buytaert's avatar
   
Dries Buytaert committed
675
function page_get_cache() {
Dries Buytaert's avatar
   
Dries Buytaert committed
676
  global $user, $REQUEST_METHOD;
Dries Buytaert's avatar
   
Dries Buytaert committed
677
678

  if (!$user->uid && $REQUEST_METHOD == "GET") {
Dries Buytaert's avatar
   
Dries Buytaert committed
679
680
681
    $cache = cache_get(request_uri());

    if (empty($cache)) {
Dries Buytaert's avatar
   
Dries Buytaert committed
682
      ob_start();
Dries Buytaert's avatar
   
Dries Buytaert committed
683
684
    }
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
685

Dries Buytaert's avatar
   
Dries Buytaert committed
686
  return $cache;
Dries Buytaert's avatar
   
Dries Buytaert committed
687
688
689
}

function format_interval($timestamp) {
Dries Buytaert's avatar
   
Dries Buytaert committed
690
  $units = array("1 year|%count years" => 31536000, "1 week|%count weeks" => 604800, "1 day|%count days" => 86400, "1 hour|%count hours" => 3600, "1 min|%count min" => 60, "1 sec|%count sec" => 1);
Kjartan Mannes's avatar
Kjartan Mannes committed
691
  foreach ($units as $key=>$value) {
Dries Buytaert's avatar
   
Dries Buytaert committed
692
693
694
695
696
697
    $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
698
  return ($output) ? $output : t("0 sec");
Dries Buytaert's avatar
   
Dries Buytaert committed
699
700
701
702
703
}

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

Kjartan Mannes's avatar
Kjartan Mannes committed
704
  $timestamp += ($user->timezone) ? $user->timezone - date("Z") : 0;
Dries Buytaert's avatar
   
Dries Buytaert committed
705
706
707

  switch ($type) {
    case "small":
Dries Buytaert's avatar
   
Dries Buytaert committed
708
      $date = date(variable_get("date_format_short", "m/d/Y - H:i"), $timestamp);
Dries Buytaert's avatar
   
Dries Buytaert committed
709
710
      break;
    case "medium":
711
      $date = date(variable_get("date_format_medium", "D, m/d/Y - H:i"), $timestamp);
Dries Buytaert's avatar
   
Dries Buytaert committed
712
713
      break;
    case "large":
714
      $date = date(variable_get("date_format_long", "l, F j, Y - H:i"), $timestamp);
Dries Buytaert's avatar
   
Dries Buytaert committed
715
716
717
718
      break;
    case "custom":
      for ($i = strlen($format); $i >= 0; $c = $format[--$i]) {
        if (strstr("DFlMSw", $c)) {
719
          $date = t(date($c, $timestamp)) . $date;
Dries Buytaert's avatar
   
Dries Buytaert committed
720
        }
721
        else if (strstr("AaBdgGhHiIjLmnOrstTUWYyZz", $c)) {
722
          $date = date($c, $timestamp) . $date;
Dries Buytaert's avatar
   
Dries Buytaert committed
723
724
        }
        else {
Kjartan Mannes's avatar
Kjartan Mannes committed
725
          $date = $c.$date;
Dries Buytaert's avatar
   
Dries Buytaert committed
726
727
728
729
        }
      }
      break;
    default:
730
      $date = date(variable_get("date_format_medium", "l, m/d/Y - H:i"), $timestamp);
Dries Buytaert's avatar
   
Dries Buytaert committed
731
732
733
734
735
736
737
  }
  return $date;
}

function format_name($object) {

  if ($object->uid && $object->name) {
Dries Buytaert's avatar
   
Dries Buytaert committed
738
    if (arg(0) == "admin") {
Dries Buytaert's avatar
   
Dries Buytaert committed
739
      $output = l($object->name, "admin/user/edit/$object->uid", array("title" => t("Administer user profile.")));
Dries Buytaert's avatar
   
Dries Buytaert committed
740
741
    }
    else {
Dries Buytaert's avatar
   
Dries Buytaert committed
742
      $output = l($object->name, "user/view/$object->uid", array("title" => t("View user profile.")));
Dries Buytaert's avatar
   
Dries Buytaert committed
743
    }
Dries Buytaert's avatar
   
Dries Buytaert committed
744
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
745
746
747
748
749
750
751
752
753
754
  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
755
  else {
Dries Buytaert's avatar
   
Dries Buytaert committed
756
    $output = t(variable_get(anonymous, "Anonymous"));
Dries Buytaert's avatar
   
Dries Buytaert committed
757
758
  }

Dries Buytaert's avatar
   
Dries Buytaert committed
759
  return $output;
Dries Buytaert's avatar
   
Dries Buytaert committed
760
761
762
}

function form($form, $method = "post", $action = 0, $options = 0) {
763
  return "<form action=\"". ($action ? $action : htmlentities(request_uri())) ."\" method=\"$method\"". ($options ? " $options" : "") .">\n$form</form>\n";
Dries Buytaert's avatar
   
Dries Buytaert committed
764
765
766
}

function form_item($title, $value, $description = 0) {
767
  return "<p>". ($title ? "<b>$title:</b><br />" : "") . $value . ($description ? "<br /><small><i>$description</i></small>" : "") ."</p>\n";
Dries Buytaert's avatar
   
Dries Buytaert committed
768
769
}

770
function form_checkbox($title, $name, $value = 1, $checked = 0, $description = 0) {
771
  return form_hidden($name, 0) . form_item(0, "<input type=\"checkbox\" name=\"edit[$name]\" value=\"". $value ."\"". ($checked ? " checked=\"checked\"" : "") ." /> $title", $description);
Dries Buytaert's avatar
   
Dries Buytaert committed
772
773
774
775
776
777
778
779
780
781
782
783
784
785
}

function form_textfield($title, $name, $value, $size, $maxlength, $description = 0) {
  return form_item($title, "<input maxlength=\"$maxlength\" name=\"edit[$name]\" size=\"$size\" value=\"". check_form($value) ."\" />", $description);
}

function form_password($title, $name, $value, $size, $maxlength, $description = 0) {
  return form_item($title, "<input type=\"password\" maxlength=\"$maxlength\" name=\"edit[$name]\" size=\"$size\" value=\"". check_form($value) ."\" />", $description);
}

function form_textarea($title, $name, $value, $cols, $rows, $description = 0) {
  return form_item($title, "<textarea wrap=\"virtual\" cols=\"$cols\" rows=\"$rows\" name=\"edit[$name]\">". check_form($value) ."</textarea>", $description);
}

Dries Buytaert's avatar
   
Dries Buytaert committed
786
function form_select($title, $name, $value, $options, $description = 0, $extra = 0, $multiple = 0) {
Dries Buytaert's avatar
   
Dries Buytaert committed
787
  if (count($options) > 0) {
Kjartan Mannes's avatar
Kjartan Mannes committed
788
    foreach ($options as $key=>$choice) {
789
      $select .= "<option value=\"$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
790
    }
Kjartan Mannes's avatar
Kjartan Mannes committed
791
    return form_item($title, "<select name=\"edit[$name]". ($multiple ? "[]" : "") ."\"". ($multiple ? " multiple " : "") . ($extra ? " $extra" : "") .">$select</select>", $description);
Dries Buytaert's avatar
   
Dries Buytaert committed
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
  }
}

function form_file($title, $name, $size, $description = 0) {
  return form_item($title, "<input type=\"file\" name=\"edit[$name]\" size=\"$size\" />\n", $description);
}

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

function form_submit($value) {
  return "<input type=\"submit\" name=\"op\" value=\"". check_form($value) ."\" />\n";
}

Dries Buytaert's avatar
   
Dries Buytaert committed
807
808
809
810
811
812
813
814
function form_weight($title = NULL, $name = "weight", $value = 0, $delta = 10, $description = 0, $extra = 0) {
  for ($n = (-1*$delta); $n <= $delta; $n++) {
    $weights[$n] = $n;
  }

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

Dries Buytaert's avatar
   
Dries Buytaert committed
815
function url($url = NULL, $query = NULL) {
Dries Buytaert's avatar
   
Dries Buytaert committed
816
  global $base_url;
Dries Buytaert's avatar
   
Dries Buytaert committed
817

Dries Buytaert's avatar
   
Dries Buytaert committed
818
  if (variable_get("clean_url", "0") == "0") {
Dries Buytaert's avatar
   
Dries Buytaert committed
819
820
    if (isset($url)) {
      if (isset($query)) {
Dries Buytaert's avatar
   
Dries Buytaert committed
821
        return "$base_url/?q=$url&amp;$query";
Dries Buytaert's avatar
   
Dries Buytaert committed
822
823
      }
      else {
Dries Buytaert's avatar
   
Dries Buytaert committed
824
        return "$base_url/?q=$url";
Dries Buytaert's avatar
   
Dries Buytaert committed
825
      }
Dries Buytaert's avatar
   
Dries Buytaert committed
826
827
    }
    else {
Dries Buytaert's avatar
   
Dries Buytaert committed
828
      if (isset($query)) {
Dries Buytaert's avatar
   
Dries Buytaert committed
829
        return "$base_url/?$query";
Dries Buytaert's avatar
   
Dries Buytaert committed
830
831
      }
      else {
Dries Buytaert's avatar
   
Dries Buytaert committed
832
        return "$base_url/";
Dries Buytaert's avatar
   
Dries Buytaert committed
833
      }
Dries Buytaert's avatar
   
Dries Buytaert committed
834
835
836
    }
  }
  else {
Dries Buytaert's avatar
   
Dries Buytaert committed
837
838
    if (isset($url)) {
      if (isset($query)) {
Dries Buytaert's avatar
   
Dries Buytaert committed
839
        return "$base_url/$url?$query";
Dries Buytaert's avatar
   
Dries Buytaert committed
840
841
      }
      else {
Dries Buytaert's avatar
   
Dries Buytaert committed
842
        return "$base_url/$url";
Dries Buytaert's avatar
   
Dries Buytaert committed
843
      }
Dries Buytaert's avatar
   
Dries Buytaert committed
844
    }
Dries Buytaert's avatar
   
Dries Buytaert committed
845
    else {
Dries Buytaert's avatar
   
Dries Buytaert committed
846
      if (isset($query)) {
Dries Buytaert's avatar
   
Dries Buytaert committed
847
        return "$base_url/?$query";
Dries Buytaert's avatar
   
Dries Buytaert committed
848
849
      }
      else {
Dries Buytaert's avatar
   
Dries Buytaert committed
850
        return "$base_url/";
Dries Buytaert's avatar
   
Dries Buytaert committed
851
      }
Dries Buytaert's avatar
   
Dries Buytaert committed
852
    }
Dries Buytaert's avatar
   
Dries Buytaert committed
853
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
854
855
}

Dries Buytaert's avatar
   
Dries Buytaert committed
856
function l($text, $url, $attributes = array(), $query = NULL) {
Dries Buytaert's avatar
   
Dries Buytaert committed
857

Dries Buytaert's avatar
   
Dries Buytaert committed
858
859
860
861
  $t = array();
  foreach ($attributes as $key => $value) {
    $t[] = "$key=\"$value\"";
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
862
863

  return "<a href=\"". url($url, $query) ."\" ". implode($t, " ") .">$text</a>";
Dries Buytaert's avatar
   
Dries Buytaert committed
864
865
}

Dries Buytaert's avatar
   
Dries Buytaert committed
866
function field_get($string, $name) {
867
  ereg(",?$name=([^,]+)", ", $string", $regs);
Dries Buytaert's avatar
   
Dries Buytaert committed
868
869
870
871
872
  return $regs[1];
}

function field_set($string, $name, $value) {
  $rval = ereg_replace(",$name=[^,]+", "", ",$string");
Dries Buytaert's avatar
   
Dries Buytaert committed
873
  if (isset($value)) {
Kjartan Mannes's avatar
Kjartan Mannes committed
874
875
    $rval .= ($rval == "," ? "" : ",") ."$name=$value";
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
876
877
878
879
  return substr($rval, 1);
}

function link_page() {
Dries Buytaert's avatar
   
Dries Buytaert committed
880
  global $custom_links, $base_url;
Dries Buytaert's avatar
   
Dries Buytaert committed
881

882
883
884
885
  if (is_array($custom_links)) {
    return $custom_links;
  }
  else {
Dries Buytaert's avatar
   
Dries Buytaert committed
886
    $links = module_invoke_all("link", "page");
887
    array_unshift($links, "<a href=\"$base_url/\" title=\"". t("Return to the main page.") ."\">". t("home") ."</a>");
888
    return $links;
Dries Buytaert's avatar
   
Dries Buytaert committed
889
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
890
}
Dries Buytaert's avatar
   
Dries Buytaert committed
891
892

function link_node($node, $main = 0) {
Dries Buytaert's avatar
   
Dries Buytaert committed
893
  return module_invoke_all("link", "node", $node, $main);
Dries Buytaert's avatar
   
Dries Buytaert committed
894
895
896
897
}

function timer_start() {
  global $timer;
Dries Buytaert's avatar
   
Dries Buytaert committed
898
899
  list($usec, $sec) = explode(" ", microtime());
  $timer = (float)$usec + (float)$sec;
Dries Buytaert's avatar
   
Dries Buytaert committed
900
901
}

Dries Buytaert's avatar
   
Dries Buytaert committed
902
903
904
905
906
function query_print() {
  global $queries;
  print "<pre>";
  print_r($queries);
  print "</pre>";
Dries Buytaert's avatar
   
Dries Buytaert committed
907
908
909
910
911
912
913
914
}

function page_header() {
  if (variable_get("dev_timer", 0)) {
    timer_start();
  }

  if (variable_get("cache", 0)) {
Dries Buytaert's avatar
   
Dries Buytaert committed
915
916
917
918
    if ($cache = page_get_cache()) {
      $date = gmdate("D, d M Y H:i:s", $cache->created) ." GMT";
      header("Last-Modified: $date");
      header("ETag: \"$date\"");
919
920
921
922
923
924
      if (function_exists("getallheaders") && $headers = getallheaders()) {
        /*
        ** Notice that the above is an optional Apache-ism so for the
        ** time being we don't send 304 headers when "getallheaders()"
        ** is not supported (eg. on IIS webservers).
        */
Dries Buytaert's avatar
   
Dries Buytaert committed
925
926
927
928
929
930
        if ($headers["If-Modified-Since"] == $date && $headers["If-None-Match"] == "\"$date\"") {
          header("HTTP/1.0 304 Not Modified");
          exit();
        }
      }
      print $cache->data;
Dries Buytaert's avatar
   
Dries Buytaert committed
931
932
933
934
935
936
      exit();
    }
  }
}

function page_footer() {
Dries Buytaert's avatar
   
Dries Buytaert committed
937

Dries Buytaert's avatar
   
Dries Buytaert committed
938
  if (variable_get("cache", 0)) {
Dries Buytaert's avatar
   
Dries Buytaert committed
939
    page_set_cache();
Dries Buytaert's avatar
   
Dries Buytaert committed
940
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
941
942
943
944

  // a hook for modules where modules may take action at the end of a request
  // good uses include setting a cache, page logging, etc.
  module_invoke_all("exit");
Dries Buytaert's avatar
   
Dries Buytaert committed
945
946
947
}

unset($conf);
Dries Buytaert's avatar
   
Dries Buytaert committed
948

949
950
$config = conf_init();

Dries Buytaert's avatar
   
Dries Buytaert committed
951
952
953
954
include_once "includes/$config.php";
include_once "includes/database.inc";
include_once "includes/module.inc";
include_once "includes/theme.inc";
Dries Buytaert's avatar
   
Dries Buytaert committed
955
include_once "includes/pager.inc";
Dries Buytaert's avatar
   
Dries Buytaert committed
956
include_once "includes/menu.inc";
Dries Buytaert's avatar
   
Dries Buytaert committed
957

958
959
960
961
if (!function_exists("xmlrpc_decode")) {
  include_once "includes/xmlrpc.inc";
}

962
963
// initialize configuration variables, using values from conf.php if available:
$conf = variable_init(isset($conf) ? $conf : array());
Dries Buytaert's avatar
   
Dries Buytaert committed
964

Dries Buytaert's avatar
   
Dries Buytaert committed
965
966
967
// set error handler:
set_error_handler("error_handler");

Dries Buytaert's avatar
   
Dries Buytaert committed
968
969
970
// initialize installed modules:
module_init();

Dries Buytaert's avatar
   
Dries Buytaert committed
971
972
973
974
975
976
// initialize localization system:
$locale = locale_init();

// initialize theme:
$theme = theme_init();

Dries Buytaert's avatar
   
Dries Buytaert committed
977
?>