node.module 40.1 KB
Newer Older
Dries's avatar
 
Dries committed
1
<?php
2
// $Id$
Dries's avatar
 
Dries committed
3

Dries's avatar
   
Dries committed
4
5
6
7
8
function node_help() {
  global $mod;

  if ($mod == "node") {
    foreach (module_list() as $name) {
Dries's avatar
   
Dries committed
9
      if (module_hook($name, "node") && $name != "node") {
Dries's avatar
   
Dries committed
10
        print "<h3>". t("%module type", array("%module" => ucfirst(module_invoke($name, "node", "name")))). "</h3>";
Dries's avatar
   
Dries committed
11
12
13
14
15
16
        print module_invoke($name, "help");
      }
    }
  }
}

17
function node_system($field){
Kjartan's avatar
Kjartan committed
18
  $system["description"] = t("The core that allows content to be submitted to the site.");
19
20
21
  return $system[$field];
}

Dries's avatar
   
Dries committed
22
23
24
25
/*
** Accepts a DB result object which can be used to fetch node objects.
** Returns an HTML list suitable as content for a block.
*/
Dries's avatar
   
Dries committed
26
27
function node_title_list($result, $title = NULL) {
  // no queries if site is in distress
Dries's avatar
   
Dries committed
28
  if (module_exist("statistics") && throttle_status() > 3) {
Dries's avatar
   
Dries committed
29
30
31
32
    return;
  }

  while ($node = db_fetch_object($result)) {
Dries's avatar
   
Dries committed
33
    $number = module_invoke("comment", "num_all", $node->nid);
Dries's avatar
   
Dries committed
34
    $items[] = l($node->title, "node/view/$node->nid", array("title" => t("Comments: %number", array("%number" => $number))));
Dries's avatar
   
Dries committed
35
36
  }

Dries's avatar
   
Dries committed
37
38
39
  return theme("theme_node_list", $items, $title);
}

Dries's avatar
   
Dries committed
40
41
function theme_node_list($items, $title = NULL) {
  return theme("theme_item_list", $items, $title);
Dries's avatar
   
Dries committed
42
43
}

Dries's avatar
   
Dries committed
44
45
46
47
48
49
50
// Update the 'last viewed' timestamp of the specified node for current user.
function node_tag_new($nid) {
  global $user;

  if ($user->uid) {
    $nid = check_query($nid);

Dries's avatar
   
Dries committed
51
    $result = db_query("SELECT timestamp FROM history WHERE uid = %d AND nid = %d", $user->uid, $nid);
Dries's avatar
   
Dries committed
52
    if (db_fetch_object($result)) {
Dries's avatar
   
Dries committed
53
      db_query("UPDATE history SET timestamp = %d WHERE uid = %d AND nid = %d", time(), $user->uid, $nid);
Dries's avatar
   
Dries committed
54
55
    }
    else {
Dries's avatar
   
Dries committed
56
      db_query("INSERT INTO history (uid, nid, timestamp) VALUES (%d, %d, %d)", $user->uid, $nid, time());
Dries's avatar
   
Dries committed
57
58
59
60
61
62
63
64
65
66
67
    }
  }
}

/*
** Retrieves the timestamp at which the current user last viewed the
** specified node.
*/
function node_last_viewed($nid) {
  global $user;

Dries's avatar
   
Dries committed
68
  $history = db_fetch_object(db_query("SELECT timestamp FROM history WHERE uid = '$user->uid' AND nid = %d", $nid));
Dries's avatar
   
Dries committed
69
70
71
72
73
74
75
76
77
78
79
80
81
  return ($history->timestamp ? $history->timestamp : 0);
}

/**
 * Determines whether the supplied timestamp is newer than the user's last view of a given node
 *
 * @param $nid       node-id twhose history supplies the 'last viewed' timestamp
 * @param $timestamp time which is compared against node's 'last veiwed' timestamp
*/
function node_is_new($nid, $timestamp) {
  global $user;
  static $cache;

Dries's avatar
Dries committed
82
  if (!isset($cache[$nid])) {
Dries's avatar
   
Dries committed
83
    if ($user->uid) {
Dries's avatar
   
Dries committed
84
      $history = db_fetch_object(db_query("SELECT timestamp FROM history WHERE uid = %d AND nid = %d", $user->uid, $nid));
Dries's avatar
   
Dries committed
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
      $cache[$nid] = $history->timestamp ? $history->timestamp : 0;
    }
    else {
      $cache[$nid] = time();
    }
  }

  if ($timestamp > $cache[$nid]) {
    return 1;
  }
  else {
    return 0;
  }
}

Dries's avatar
   
Dries committed
100
101
function node_teaser($body) {

Dries's avatar
   
Dries committed
102
103
104
105
106
107
108
109
110
111
  $size = variable_get("teaser_length", 600);

  /*
  ** If the size is zero, teasers are disabled so we
  ** return the entire body.
  */

  if ($size == 0) {
    return $body;
  }
Dries's avatar
   
Dries committed
112
113
114
115
116
117
118
119
120
121

  /*
  ** If we have a short body, return the entire body:
  */

  if (strlen($body) < $size) {
    return $body;
  }

  /*
Dries's avatar
   
Dries committed
122
  ** If a valid delimiter has been specified, use it to
Dries's avatar
   
Dries committed
123
124
  ** chop of the teaser.  The delimiter can be outside
  ** the allowed range but no more than a factor two.
Dries's avatar
   
Dries committed
125
126
  */

Dries's avatar
Dries committed
127
  $delimiter = strpos($body, "<!--break-->");
Dries's avatar
   
Dries committed
128
  if ($delimiter > 0) {
Dries's avatar
   
Dries committed
129
130
131
132
133
134
135
    return substr($body, 0, $delimiter);
  }

  /*
  ** In some cases no delimiter has been specified (eg.
  ** when posting using the Blogger API) in which case
  ** we try to split at paragraph boundaries.
Dries's avatar
   
Dries committed
136
137
  */

Dries's avatar
   
Dries committed
138
  if ($length = strpos($body, "<br />", $size)) {
Dries's avatar
   
Dries committed
139
    return substr($body, 0, $length);
Dries's avatar
   
Dries committed
140
141
142
  }

  if ($length = strpos($body, "<br>", $size)) {
Dries's avatar
   
Dries committed
143
    return substr($body, 0, $length);
Dries's avatar
   
Dries committed
144
145
146
  }

  if ($length = strpos($body, "</p>", $size)) {
Dries's avatar
   
Dries committed
147
148
149
150
151
    return substr($body, 0, $length);
  }

  if ($length = strpos($body, "\n", $size)) {
    return substr($body, 0, $length);
Dries's avatar
   
Dries committed
152
153
  }

Dries's avatar
   
Dries committed
154
  /*
Dries's avatar
   
Dries committed
155
  ** When even the first paragraph is too long, try to
Dries's avatar
   
Dries committed
156
  ** split at the end of the next sentence.
Dries's avatar
   
Dries committed
157
158
  */

Dries's avatar
   
Dries committed
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
  if ($length = strpos($body, ". ", $size)) {
    return substr($body, 0, $length + 1);
  }

  if ($length = strpos($body, "! ", $size)) {
    return substr($body, 0, $length + 1);
  }

  if ($length = strpos($body, "? ", $size)) {
    return substr($body, 0, $length + 1);
  }

  /*
  ** Nevermind, we split it the hard way ...
  */
Dries's avatar
   
Dries committed
174

Dries's avatar
   
Dries committed
175
  return substr($body, 0, $size);
Dries's avatar
   
Dries committed
176
177
}

178
function node_invoke(&$node, $hook, $arg = 0) {
Dries's avatar
   
Dries committed
179
  if (is_array($node)) {
180
    $function = $node["type"] ."_$hook";
Dries's avatar
   
Dries committed
181
182
  }
  else if (is_object($node)) {
183
    $function = $node->type ."_$hook";
Dries's avatar
   
Dries committed
184
185
  }
  else if (is_string($node)) {
186
    $function = $node ."_$hook";
Dries's avatar
   
Dries committed
187
188
189
190
191
192
193
  }

  if (function_exists($function)) {
    return ($arg ? $function($node, $arg) : $function($node));
  }
}

194
function node_invoke_all(&$node, $hook, $op, $arg = 0) {
195
196
  $return = array();
  foreach (module_list() as $name) {
197
    if ((module_hook($name, "node") || module_hook($name, "nodeapi")) && module_hook($name, $hook)) {
198
199
200
201
202
203
204
205
206
207
      $function = $name ."_". $hook;
      $result = $function($node, $op, $arg);
      if (isset($result)) {
        $return = array_merge($return, $result);
      }
    }
  }
  return $return;
}

Dries's avatar
   
Dries committed
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
function node_load($conditions) {

  /*
  ** Turn the conditions into a query:
  */

  foreach ($conditions as $key => $value) {
    $cond[] = "n.". check_query($key) ." = '". check_query($value) ."'";
  }

  /*
  ** Retrieve the node:
  */

  $node = db_fetch_object(db_query("SELECT n.*, u.uid, u.name FROM node n LEFT JOIN users u ON u.uid = n.uid WHERE ". implode(" AND ", $cond)));

  /*
  ** Unserialize the revisions field:
  */

  if ($node->revisions) {
    $node->revisions = unserialize($node->revisions);
  }

  /*
  ** Call the node specific callback (if any) and piggy-back the
  ** results to the node or overwrite some values:
  */

  if ($extra = module_invoke($node->type, "load", $node)) {
    foreach ($extra as $key => $value) {
      $node->$key = $value;
    }
  }

  return $node;
}

246
function node_save($node) {
Dries's avatar
   
Dries committed
247

248
249
250
251
  /*
  ** Fetch fields to save to node table:
  */
  $fields = node_invoke_all($node, "nodeapi", "fields");
Dries's avatar
   
Dries committed
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270

  /*
  ** Serialize the revisions field:
  */

  if ($node->revisions) {
    $node->revisions = serialize($node->revisions);
  }

  /*
  ** Apply filters to some default node fields:
  */

  if (empty($node->nid)) {

    /*
    ** Insert a new node:
    */

Dries's avatar
   
Dries committed
271
    // Set some required fields:
272
273
274
    if (!$node->created) {
      $node->created = time();
    }
Dries's avatar
   
Dries committed
275
    $node->changed = time();
Dries's avatar
   
Dries committed
276
    $node->nid = db_next_id("node_nid");
Dries's avatar
   
Dries committed
277

Dries's avatar
   
Dries committed
278
    // Prepare the query:
Dries's avatar
   
Dries committed
279
280
281
282
283
284
285
    foreach ($node as $key => $value) {
      if (in_array($key, $fields)) {
        $k[] = check_query($key);
        $v[] = "'". check_query($value) ."'";
      }
    }

Dries's avatar
   
Dries committed
286
    // Insert the node into the database:
Dries's avatar
   
Dries committed
287
288
    db_query("INSERT INTO node (". implode(", ", $k) .") VALUES (". implode(", ", $v) .")");

Dries's avatar
   
Dries committed
289
    // Call the node specific callback (if any):
290
291
    node_invoke($node, "insert");
    node_invoke_all($node, "nodeapi", "insert");
Dries's avatar
   
Dries committed
292
293
294
295
296
297
298
  }
  else {

    /*
    ** Update an existing node:
    */

Dries's avatar
   
Dries committed
299
    // Set some required fields:
Dries's avatar
   
Dries committed
300
301
    $node->changed = time();

Dries's avatar
   
Dries committed
302
    // Prepare the query:
Dries's avatar
   
Dries committed
303
304
305
306
307
308
    foreach ($node as $key => $value) {
      if (in_array($key, $fields)) {
        $q[] = check_query($key) ." = '". check_query($value) ."'";
      }
    }

Dries's avatar
   
Dries committed
309
    // Update the node in the database:
Dries's avatar
   
Dries committed
310
311
    db_query("UPDATE node SET ". implode(", ", $q) ." WHERE nid = '$node->nid'");

Dries's avatar
   
Dries committed
312
    // Call the node specific callback (if any):
313
314
    node_invoke($node, "update");
    node_invoke_all($node, "nodeapi", "update");
Dries's avatar
   
Dries committed
315
316
  }

Dries's avatar
   
Dries committed
317
  /*
Dries's avatar
   
Dries committed
318
319
  ** Clear the cache so an anonymous poster can see the node being
  ** added or updated.
Dries's avatar
   
Dries committed
320
321
322
323
  */

  cache_clear_all();

Dries's avatar
   
Dries committed
324
325
326
327
328
329
330
331
332
  /*
  ** Return the node ID:
  */

  return $node->nid;

}

function node_view($node, $main = 0) {
Dries's avatar
   
Dries committed
333

Dries's avatar
   
Dries committed
334

Dries's avatar
   
Dries committed
335
  $node = array2object($node);
Dries's avatar
   
Dries committed
336

Dries's avatar
   
Dries committed
337
338
  /*
  ** Remove the delimiter (if any) that seperates the teaser from the
Dries's avatar
Dries committed
339
  ** body. TODO: this strips legitimate uses of '<!--break-->' also.
Dries's avatar
   
Dries committed
340
341
  */

Dries's avatar
Dries committed
342
  $node->body = str_replace("<!--break-->", "", $node->body);
Dries's avatar
   
Dries committed
343

Dries's avatar
   
Dries committed
344
345
346
347
348
349
350
351
352
353
354
355
356
357
  /*
  ** The "view" hook can be implemented to overwrite the default function
  ** to display nodes.
  */

  if (module_hook($node->type, "view")) {
    node_invoke($node, "view", $main);
  }
  else {

    /*
    ** Default behavior:
    */

Dries's avatar
   
Dries committed
358
359
    $node->teaser = check_output($node->teaser);
    $node->body = check_output($node->body);
Dries's avatar
   
Dries committed
360

Dries's avatar
   
Dries committed
361
    theme("node", $node, $main);
Dries's avatar
   
Dries committed
362
363
364
  }
}

Dries's avatar
   
Dries committed
365

Dries's avatar
   
Dries committed
366
function node_show($nid, $cid) {
Dries's avatar
   
Dries committed
367
  global $revision;
Dries's avatar
   
Dries committed
368
369
370
371
372
373
374
375
376
377
378
379
380

  $node = node_load(array("status" => 1, "nid" => $nid));

  if (node_access("view", $node)) {
    if (isset($revision)) {
      $node = $node->revisions[$revision]["node"];
    }

    node_view($node);

    if (function_exists("comment_render") && $node->comment) {
      comment_render($node, $cid);
    }
Dries's avatar
   
Dries committed
381
382
383
384
385
386

    /*
    ** Update the history table, stating that this user viewed this node.
    */

    node_tag_new($node->nid);
Dries's avatar
   
Dries committed
387
388
389
  }
}

Dries's avatar
   
Dries committed
390
391
function node_access($op, $node = 0) {

Dries's avatar
   
Dries committed
392
393
  if (user_access("administer nodes")) {
    return 1;
Dries's avatar
   
Dries committed
394
395
  }

Dries's avatar
   
Dries committed
396
397
398
  /*
  ** Convert the node to an object if necessary:
  */
Dries's avatar
   
Dries committed
399

Dries's avatar
   
Dries committed
400
  $node = array2object($node);
Dries's avatar
   
Dries committed
401

Dries's avatar
   
Dries committed
402
403
404
  /*
  ** Construct a function:
  */
Dries's avatar
   
Dries committed
405

Dries's avatar
   
Dries committed
406
407
408
409
410
411
  if ($node->type) {
    $type = $node->type;
  }
  else {
    $type = $node;
  }
Dries's avatar
   
Dries committed
412

Dries's avatar
   
Dries committed
413
  $function = $type ."_access";
Dries's avatar
   
Dries committed
414

Dries's avatar
   
Dries committed
415
416
417
418
419
  if (function_exists($function)) {
    return $function($op, $node);
  }
  else {
    return 0;
Dries's avatar
   
Dries committed
420
421
422
  }
}

Dries's avatar
   
Dries committed
423
function node_perm() {
Dries's avatar
   
Dries committed
424
  return array("administer nodes", "access content");
Dries's avatar
   
Dries committed
425
426
}

Dries's avatar
   
Dries committed
427
428
function node_search($keys) {

Kjartan's avatar
Kjartan committed
429
430
431
432
433
434
435
436
437
438
439
440
  // Return the results of performing a search using the indexed search
  // for this particular type of node.
  //
  // Pass an array to the "do_search" function which dictates what it
  // will search through, and what it will search for
  //
  // "keys"'s value is the keywords entered by the user
  //
  // "type"'s value is used to identify the node type in the search
  // index.
  //
  // "select"'s value is used to relate the data from the specific nodes
Dries's avatar
   
Dries committed
441
  // table to the data that the search_index table has in it, and the the
Kjartan's avatar
Kjartan committed
442
443
  // do_search functino will rank it.
  //
Dries's avatar
   
Dries committed
444
  // The select must always provide the following fields - lno, title,
Kjartan's avatar
Kjartan committed
445
446
  // created, uid, name, count
  //
Kjartan's avatar
Kjartan committed
447
  $find = do_search(array("keys" => $keys, "type" => "node", "select" => "select s.lno as lno, n.title as title, n.created as created, u.uid as uid, u.name as name, s.count as count FROM search_index s, node n LEFT JOIN users u ON n.uid = u.uid WHERE s.lno = n.nid AND s.type = 'node' AND s.word like '%' AND n.status = 1"));
Dries's avatar
   
Dries committed
448

Dries's avatar
   
Dries committed
449
450
451
  return $find;
}

452
function node_settings() {
Dries's avatar
   
Dries committed
453
  $output .= form_select(t("Number of posts on main page"), "default_nodes_main", variable_get("default_nodes_main", 10), array(1 => 1, 2 => 2, 3 => 3, 4 => 4, 5 =>  5, 6 => 6, 7 => 7, 8 => 8, 9 => 9, 10 => 10, 15 => 15, 20 => 20, 25 => 25, 30 => 30), t("The default maximum number of posts to display on overview pages such as the main page."));
Dries's avatar
   
Dries committed
454
  $output .= form_select(t("Length of trimmed posts"), "teaser_length", variable_get("teaser_length", 600), array(0 => t("Unlimited"), 200 => t("200 characters"), 400 => t("400 characters"), 600 => t("600 characters"), 800 => t("800 characters"), 1000 => t("1000 characters"), 1200 => t("1200 characters"), 1400 => t("1400 characters"), 1600 => t("1600 characters"), 1800 => t("1800 characters"), 2000 => t("2000 characters")), t("The maximum number of characters used in the trimmed version of a post.  Drupal will use this setting to determine at which offset long posts should be trimmed.  The trimmed version of a post is typically used as a teaser when displaying the post on the main page, in XML feeds, etc.  To disable teasers, set to 'Unlimited'."));
Dries's avatar
   
Dries committed
455
  $output .= form_select(t("Preview post"), "node_preview", variable_get("node_preview", 0), array(t("Optional"), t("Required")), t("Must users preview posts before submitting?"));
Dries's avatar
   
Dries committed
456
457
458
  return $output;
}

Dries's avatar
CHANGES    
Dries committed
459
function node_conf_filters() {
Dries's avatar
   
Dries committed
460
  $output .= form_select(t("Filter HTML tags"), "filter_html", variable_get("filter_html", 0), array(t("Disabled"), t("Enabled")), t("Filter HTML and PHP tags in user-contributed content."));
461
  $output .= form_textfield(t("Allowed HTML tags"), "allowed_html", variable_get("allowed_html", "<a> <b> <dd> <dl> <dt> <i> <li> <ol> <u> <ul>"), 64, 255, t("If enabled, optionally specify tags which should not be stripped.  'STYLE' attributes, 'ON' attributes and unclosed tags are always stripped."));
Dries's avatar
   
Dries committed
462
  $output .= form_select(t("Rewrite old URLs"), "rewrite_old_urls", variable_get("rewrite_old_urls", 0), array(t("Disabled"), t("Enabled")), t("The introduction of 'clean URLs' in Drupal 4.2.0 breaks internal URLs that date back from Drupal 4.1.0 and before.  If enabled, this filter will attempt to rewrite the old style URLs to avoid broken links.  If <code>mod_rewrite</code> is available on your system, use the rewrite rules in Drupal's <code>.htaccess</code> file instead as these will also correct external referrers."));
Dries's avatar
   
Dries committed
463
  $output .= "<hr />";
Dries's avatar
CHANGES    
Dries committed
464
465
466
467
468
469
470
471
472
  return $output;
}

function node_filter_html($text) {
  $text = strip_tags($text, variable_get("allowed_html", ""));
  return $text;
}

function node_filter_link($text) {
473
474
  $pat = '\[{2}([^\|]+)(\|([^\|]+)?)?\]{2}';                   // [link|description]
  return ereg_replace($pat, $dst, $text);
Dries's avatar
   
Dries committed
475
476
}

Dries's avatar
   
Dries committed
477
function node_comment_mode($nid) {
Dries's avatar
   
Dries committed
478
479
  static $comment_mode;
  if (!isset($comment_mode[$nid])) {
Dries's avatar
   
Dries committed
480
    $comment_mode[$nid] = db_result(db_query("SELECT comment FROM node WHERE nid = %d", $nid));
Dries's avatar
   
Dries committed
481
482
  }
  return $comment_mode[$nid];
Dries's avatar
   
Dries committed
483
484
}

Dries's avatar
CHANGES    
Dries committed
485
function node_filter($text) {
Dries's avatar
   
Dries committed
486
487
488
489
490
  $text = preg_replace("/\Wstyle\s*=[^>]+?>/i", ">", $text);
  $text = preg_replace("/\Won[a-z]+\s*=[^>]+?>/i", ">", $text);
  $text = preg_replace("/\Wsrc\s*=[\s'\"]*javascript[^>]+?>/i", ">", $text);
  $text = preg_replace("/\Whref\s*=[\s'\"]*javascript:[^>]+?>/i", ">", $text);

Dries's avatar
   
Dries committed
491
492
493
494
495
496
497
  if (variable_get("filter_html", 0)) {
    $text = node_filter_html($text);
  }

  if (variable_get("rewrite_old_urls", 0)) {
    $text = rewrite_old_urls($text);
  }
Dries's avatar
   
Dries committed
498
499

  return trim($text);
Dries's avatar
CHANGES    
Dries committed
500
501
}

502
function node_link($type, $node = 0, $main = 0) {
Dries's avatar
   
Dries committed
503

Dries's avatar
   
Dries committed
504
505
  $links = array();

Dries's avatar
   
Dries committed
506
  if ($type == "page") {
Dries's avatar
   
Dries committed
507
    $links[] = l(t("submit"), "node/add", array("title" => t("Submit or suggest new content.")));
Dries's avatar
   
Dries committed
508
509
  }

Dries's avatar
   
Dries committed
510
  if ($type == "node") {
Kjartan's avatar
Kjartan committed
511
512
513
    if ($node->links) {
      $links = $node->links;
    }
Dries's avatar
   
Dries committed
514

515
    if ($main == 1 && $node->teaser && $node->teaser != $node->body) {
Dries's avatar
   
Dries committed
516
      $links[] = l(t("read more"), "node/view/$node->nid", array("title" => t("Read the rest of this posting.")));
Dries's avatar
   
Dries committed
517
    }
Dries's avatar
   
Dries committed
518
519

    if (user_access("administer nodes")) {
Dries's avatar
   
Dries committed
520
       $links[] = l(t("administer"), "admin/node/edit/$node->nid", array("title" => t("Administer this node.")));
Dries's avatar
   
Dries committed
521
    }
Dries's avatar
   
Dries committed
522
523
  }

Dries's avatar
   
Dries committed
524
  if ($type == "admin" && user_access("administer nodes")) {
Dries's avatar
   
Dries committed
525
    $help["search"] = "On this page you can search for a post.  For example, one may search for 'br' and Drupal might return 'bread brakers', 'our daily bread' and 'brenda'.";
Dries's avatar
   
Dries committed
526

527
    menu("admin/node", "content management", "node_admin");
Dries's avatar
   
Dries committed
528
529
    menu("admin/node/nodes", "post overview");
    menu("admin/node/nodes/0", "new or updated posts", "node_admin", NULL, 0);
530
    menu("admin/node/nodes/1", "approval queue", "node_admin", NULL, 1);
Dries's avatar
   
Dries committed
531
    menu("admin/node/search", "search posts", "node_admin", $help["search"], 8);
Dries's avatar
   
Dries committed
532
533
    menu("admin/node/help", "help", "node_help", NULL, 9);
    menu("admin/node/edit", "edit node", "node_admin", NULL, 0, 1);
534
    menu("admin/node/settings", "content settings", "node_admin", NULL, 8);
Dries's avatar
   
Dries committed
535
536
  }

Dries's avatar
   
Dries committed
537
  return $links;
Dries's avatar
   
Dries committed
538
539
}

Dries's avatar
   
Dries committed
540
function node_admin_edit($node) {
Dries's avatar
   
Dries committed
541

Dries's avatar
   
Dries committed
542
  if (is_numeric($node)) {
Dries's avatar
   
Dries committed
543
    $node = node_load(array("nid" => $node));
Dries's avatar
   
Dries committed
544
  }
Dries's avatar
   
Dries committed
545

Dries's avatar
   
Dries committed
546
547
548
  /*
  ** Edit node:
  */
Dries's avatar
   
Dries committed
549

Dries's avatar
   
Dries committed
550
  $output .= "<h3>". t("Edit %module", array("%module" => module_invoke($node->type, "node", "name"))) ."</h3>";
Dries's avatar
   
Dries committed
551

Dries's avatar
   
Dries committed
552
  $output .= node_form($node);
Dries's avatar
   
Dries committed
553

Dries's avatar
   
Dries committed
554
555
556
557
558
559
560
  /*
  ** Edit revisions:
  */

  if ($node->revisions) {
    $output .= "<h3>". t("Edit revisions") ."</h3>";
    $output .= "<table border=\"1\" cellpadding=\"2\" cellspacing=\"2\">";
Dries's avatar
   
Dries committed
561
    $output .= " <tr><th>". t("older revisions") ."</th><th colspan=\"3\">". t("operations") ."</th></tr>";
Dries's avatar
   
Dries committed
562
    foreach ($node->revisions as $key => $revision) {
Dries's avatar
Dries committed
563
      $output .= " <tr><td>". t("revision #%r revised by %u on %d", array("%r" => $key, "%u" => format_name(user_load(array("uid" => $revision["uid"]))), "%d" => format_date($revision["timestamp"], "small"))) . ($revision["history"] ? "<br /><small>". $revision["history"] ."</small>" : "") ."</td><td>". l(t("view revision"), "node/view/$node->nid", array(), "revision=$key") ."</td><td>". l(t("rollback revision"), "admin/node/rollback+revision/$node->nid/$key") ."</td><td>". l(t("delete revision"), "admin/node/delete+revision/$node->nid/$key") ."</td></tr>";
Dries's avatar
   
Dries committed
564
565
566
567
    }
    $output .= "</table>";
  }

Dries's avatar
   
Dries committed
568
  /*
Dries's avatar
   
Dries committed
569
  ** Display the node form extensions:
Dries's avatar
   
Dries committed
570
  */
Dries's avatar
   
Dries committed
571

Dries's avatar
   
Dries committed
572
573
  foreach (module_list() as $name) {
    $output .= module_invoke($name, "node_link", $node);
Dries's avatar
Dries committed
574
575
  }

Dries's avatar
   
Dries committed
576
  return $output;
Dries's avatar
   
Dries committed
577
578
579

}

Dries's avatar
   
Dries committed
580
function node_admin_nodes() {
Dries's avatar
   
Dries committed
581

Dries's avatar
   
Dries committed
582
  $query = arg(3);
Dries's avatar
   
Dries committed
583
  $queries = array("ORDER BY n.changed DESC", "WHERE n.status = 0 OR n.moderate = 1 ORDER BY n.changed DESC");
Dries's avatar
Dries committed
584

Dries's avatar
   
Dries committed
585
  $result = pager_query("SELECT n.*, u.name, u.uid FROM node n LEFT JOIN users u ON n.uid = u.uid ". $queries[$query ? $query : 0], 50);
Dries's avatar
   
Dries committed
586

Dries's avatar
   
Dries committed
587
588
  $header = array(t("title"), t("type"), t("author"), t("status"), array("data" => t("operations"), "colspan" => 2));

Dries's avatar
   
Dries committed
589
  while ($node = db_fetch_object($result)) {
Dries's avatar
   
Dries committed
590
    $rows[] = array(l($node->title, "node/view/$node->nid") ." ". (node_is_new($node->nid, $node->changed) ? theme_mark() : ""), module_invoke($node->type, "node", "name"), format_name($node), ($node->status ? t("published") : t("not published")), l(t("edit node"), "admin/node/edit/$node->nid"), l(t("delete node"), "admin/node/delete/$node->nid"));
Dries's avatar
   
Dries committed
591
  }
Dries's avatar
   
Dries committed
592

Dries's avatar
   
Dries committed
593
594
595
  if ($pager = pager_display(NULL, 50, 0, "admin")) {
    $rows[] = array(array("data" => $pager, "colspan" => 6));
  }
Dries's avatar
   
Dries committed
596

Dries's avatar
   
Dries committed
597
  return table($header, $rows);
Dries's avatar
Dries committed
598
599
}

600
601
602
603
604
/*
**
*/

function node_admin_settings($edit) {
Dries's avatar
   
Dries committed
605
  $op = $_POST["op"];
Kjartan's avatar
Kjartan committed
606

607
608
609
610
611
612
613
614
  if ($op == t("Save configuration")) {
    /*
    ** Save the configuration options:
    */

    foreach ($edit as $name => $value) {
      variable_set($name, $value);
    }
615
    $output = status(t("the content settings have been saved."));
616
617
618
619
620
621
622
623
624
625
  }

  if ($op == t("Reset to defaults")) {
    /*
    ** Reset the configuration options to their default value:
    */

    foreach ($edit as $name => $value) {
      variable_del($name);
    }
626
    $output = status(t("the content settings have been reset to their default values."));
627
628
  }

629
  $header = array_merge(array(t("content type")), array_keys(node_invoke_all($node, "nodeapi", "settings")));
630
631
632
633
634
635
636
637
638
639
  foreach (module_list() as $name) {
    if (module_hook($name, "node")) {
      $node->type = $name;
      $cols = array();
      foreach (node_invoke_all($node, "nodeapi", "settings") as $setting) {
        $cols[] = array("data" => $setting, "align" => "center", "width" => 55);
      }
      $rows[] = array_merge(array(module_invoke($name, "node", "name")), $cols);
    }
  }
Kjartan's avatar
Kjartan committed
640

641
  $output .= table($header, $rows);
642

643
  /* This is an idea for the future.
644
645
646
  foreach (module_list() as $name) {
    if (module_hook($name, "node")) {
      $node->type = $name;
Kjartan's avatar
Kjartan committed
647

648
649
650
651
652
653
654
655
656
657
      // Create table() data:
      $header = array_keys(node_invoke_all($node, "nodeapi", "settings"));
      $cols = array();
      foreach (node_invoke_all($node, "nodeapi", "settings") as $setting) {
        $cols[] = array("data" => $setting, "align" => "center", "width" => 75);
      }

      $output .= "<h2>". module_invoke($name, "node", "name") ."</h2>";
      $output .= table($header, array($cols));
      $output .= "<br /><br />";
658
659
    }
  }
660
  */
661
662
663

  $output .= form_submit(t("Save configuration"));
  $output .= form_submit(t("Reset to defaults"));
Kjartan's avatar
Kjartan committed
664

665
  print form($output);
666
667
668

}

Dries's avatar
   
Dries committed
669
670
671
672
673
674
675
676
677
678
679
680
/*
** Return the revision with the specified revision number.
*/

function node_revision_load($node, $revision) {
  return $node->revisions[$revision]["node"];
}

/*
** Create and return a new revision of the given node.
*/

Dries's avatar
   
Dries committed
681
682
683
function node_revision_create($node) {
  global $user;

Dries's avatar
   
Dries committed
684
685
686
687
688
  /*
  ** 'revision' is the name of the field used to indicicate that we
  ** have to create a new revision of a node.
  */

Dries's avatar
   
Dries committed
689
  if ($node->nid && $node->revision) {
Dries's avatar
   
Dries committed
690
691
692
693
    $prev = node_load(array("nid" => $node->nid));
    $node->revisions = $prev->revisions;
    unset($prev->revisions);
    $node->revisions[] = array("uid" => $user->uid, "timestamp" => time(), "node" => $prev, "history" => $node->history);
Dries's avatar
   
Dries committed
694
695
696
697
698
  }

  return $node;
}

Dries's avatar
   
Dries committed
699
700
701
/*
** Roll-back to the revision with the specified revision number.
*/
Dries's avatar
   
Dries committed
702

Dries's avatar
   
Dries committed
703
704
function node_revision_rollback($node, $revision) {
  global $user;
Dries's avatar
   
Dries committed
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739

  /*
  ** Extract the specified revision:
  */

  $rev = $node->revisions[$revision]["node"];

  /*
  ** Inherit all the past revisions:
  */

  $rev->revisions = $node->revisions;

  /*
  ** Save the original/current node:
  */

  $rev->revisions[] = array("uid" => $user->uid, "timestamp" => time(), "node" => $node);

  /*
  ** Remove the specified revision:
  */

  unset($rev->revisions[$revision]);

  /*
  ** Save the node:
  */

  foreach ($node as $key => $value) {
    $filter[] = $key;
  }

  node_save($rev, $filter);

Dries's avatar
   
Dries committed
740
  watchdog("special", "$node->type: rollbacked to revision #$revision of '$node->title'");
Dries's avatar
   
Dries committed
741
742
}

Dries's avatar
   
Dries committed
743
744
745
746
747
/*
** Delete the revision with specified revision number.
*/

function node_revision_delete($node, $revision) {
Dries's avatar
   
Dries committed
748
749

  unset($node->revisions[$revision]);
Dries's avatar
   
Dries committed
750

Dries's avatar
   
Dries committed
751
  node_save($node, array("nid", "revisions"));
Dries's avatar
   
Dries committed
752

Dries's avatar
   
Dries committed
753
  watchdog("special", "$node->type: removed revision #$revision of '$node->title'");
Dries's avatar
   
Dries committed
754
755
}

Dries's avatar
   
Dries committed
756
757
758
759
760
761
762
763
764
765
766
/*
** Return a list of all the existing revision numbers.
*/

function node_revision_list($node) {
  if (is_array($node->revisions)) {
    return array_keys($node->revisions);
  }
  else {
    return array();
  }
Dries's avatar
   
Dries committed
767
768
}

Dries's avatar
 
Dries committed
769
function node_admin() {
Dries's avatar
   
Dries committed
770
771
  $op = $_POST["op"];
  $edit = $_POST["edit"];
Dries's avatar
   
Dries committed
772

Dries's avatar
   
Dries committed
773
  if (user_access("administer nodes")) {
Dries's avatar
   
Dries committed
774

Dries's avatar
   
Dries committed
775
776
777
778
    if (empty($op)) {
      $op = arg(2);
    }

Dries's avatar
   
Dries committed
779
780
781
    /*
    ** Compile a list of the administrative links:
    */
Dries's avatar
Dries committed
782

Dries's avatar
   
Dries committed
783
784
    switch ($op) {
      case "search":
Dries's avatar
   
Dries committed
785
        print search_type("node", url("admin/node/search"));
Dries's avatar
   
Dries committed
786
787
        break;
      case "edit":
Dries's avatar
   
Dries committed
788
        print node_admin_edit(arg(3));
Dries's avatar
   
Dries committed
789
        break;
Dries's avatar
   
Dries committed
790
      case "delete":
Dries's avatar
   
Dries committed
791
        print node_delete(array("nid" => arg(3)));
Dries's avatar
   
Dries committed
792
        break;
Dries's avatar
   
Dries committed
793
      case "rollback+revision":
Dries's avatar
   
Dries committed
794
795
        print node_revision_rollback(node_load(array("nid" => arg(3))), arg(5));
        print node_admin_edit(arg(4));
Dries's avatar
   
Dries committed
796
        break;
Dries's avatar
   
Dries committed
797
      case "delete+revision":
Dries's avatar
   
Dries committed
798
799
        print node_revision_delete(node_load(array("nid" => arg(3))), arg(5));
        print node_admin_edit(arg(4));
Dries's avatar
   
Dries committed
800
        break;
Dries's avatar
   
Dries committed
801
      case t("Preview"):
Dries's avatar
   
Dries committed
802
        $edit = node_validate($edit, $error);
Dries's avatar
   
Dries committed
803
        print node_preview($edit);
Dries's avatar
   
Dries committed
804
        break;
Dries's avatar
   
Dries committed
805
      case t("Submit"):
Dries's avatar
   
Dries committed
806
807
808
        print node_submit($edit);
        break;
      case t("Delete"):
Dries's avatar
   
Dries committed
809
        print node_delete($edit);
Dries's avatar
   
Dries committed
810
        break;
811
812
813
814
815
      case t("Save configuration"):
      case t("Reset to defaults"):
      case "settings":
        print node_admin_settings($edit);
        break;
Dries's avatar
   
Dries committed
816
      default:
Dries's avatar
   
Dries committed
817
        print node_admin_nodes();
Dries's avatar
   
Dries committed
818
819
820
821
    }
  }
  else {
    print message_access();
Dries's avatar
 
Dries committed
822
823
824
  }
}

Dries's avatar
   
Dries committed
825
function node_block($op = "list", $delta = 0) {
Dries's avatar
   
Dries committed
826

Dries's avatar
   
Dries committed
827
828
829
830
831
832
  if ($op == "list") {
    $blocks[0]["info"] = t("Syndicate");
    return $blocks;
  }
  else {
    $block["subject"] = t("Syndicate");
Dries's avatar
   
Dries committed
833
    $block["content"] = "<div align=\"center\">". l("<img src=\"". theme("image", "xml.gif") ."\" width=\"36\" height=\"14\" border=\"0\" alt=\"XML\" />", "node/feed", array("title" => t("Read the XML version of this page."))) ."</div>";
Dries's avatar
   
Dries committed
834

Dries's avatar
   
Dries committed
835
836
    return $block;
  }
Dries's avatar
   
Dries committed
837
838
}

Kjartan's avatar
Kjartan committed
839
function node_feed($nodes = 0, $channel = array()) {
Dries's avatar
   
Dries committed
840
841
  global $base_url;

Kjartan's avatar
Kjartan committed
842
  /*
Dries's avatar
   
Dries committed
843
844
845
846
847
  ** A generic function for generating RSS feeds from a set of nodes.
  **   - $nodes should be an object as returned by db_query() which contains
  **     the nid field.
  **   - $channel is an associative array containing title, link, and
  **     description keys.
Kjartan's avatar
Kjartan committed
848
  */
Dries's avatar
   
Dries committed
849

Kjartan's avatar
Kjartan committed
850
  if (!$nodes) {
Dries's avatar
   
Dries committed
851
    $nodes = db_query_range("SELECT nid FROM node WHERE promote = '1' AND status = '1' ORDER BY created DESC", 0, 15);
Kjartan's avatar
Kjartan committed
852
  }
Dries's avatar
   
Dries committed
853

Kjartan's avatar
Kjartan committed
854
855
  while ($node = db_fetch_object($nodes)) {
    $item = node_load(array("nid" => $node->nid));
Dries's avatar
   
Dries committed
856
    $link = url("node/view/$item->nid");
Dries's avatar
   
Dries committed
857
    $items .= format_rss_item($item->title, $link, $item->teaser);
Dries's avatar
   
Dries committed
858
859
  }

Kjartan's avatar
Kjartan committed
860
  $output .= "<?xml version=\"1.0\" ". t("encoding=\"ISO-8859-1\""). "?>\n";
Kjartan's avatar
Kjartan committed
861
  $output .= "<!DOCTYPE rss [<!ENTITY % HTMLlat1 PUBLIC \"-//W3C//ENTITIES Latin 1 for XHTML//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml-lat1.ent\">]>\n";
Dries's avatar
   
Dries committed
862
    // NOTE: &eacute; - for example - is the correct ISO-8859-1 translation of  (e acute) but apparently XML parsers don't (have to) understand it.  To solve this problem, we use a DTD that defines commonly used entity such as &eacute;.
Kjartan's avatar
Kjartan committed
863
864
  if (!$channel["version"]) $channel["version"] = "0.91";
  if (!$channel["title"]) $channel["title"] = variable_get("site_name", "drupal") ." - ". variable_get("site_slogan", "");
Dries's avatar
   
Dries committed
865
  if (!$channel["link"]) $channel["link"] = $base_url;
Kjartan's avatar
Kjartan committed
866
867
868
869
  if (!$channel["description"]) $channel["description"] = variable_get("site_mission", "");
  if (!$channel["language"]) $channel["language"] = "en";
  $output .= "<rss version=\"". $channel["version"] . "\">\n";
  $output .= format_rss_channel($channel["title"], $channel["link"], $channel["description"], $items, $channel["language"]);
Dries's avatar
   
Dries committed
870
871
  $output .= "</rss>\n";

Dries's avatar
   
Dries committed
872
  header("Content-Type: text/xml");
Dries's avatar
   
Dries committed
873
874
875
  print $output;
}

876
function node_validate($node, &$error) {
Dries's avatar
   
Dries committed
877
  global $user;
878
  $error = array();
Dries's avatar
   
Dries committed
879
880
881
882
883

  /*
  ** Convert the node to an object if necessary:
  */

Dries's avatar
   
Dries committed
884
  $node = array2object($node);
Dries's avatar
   
Dries committed
885
886
887
888
889

  /*
  ** Validate the title field:
  */

Dries's avatar
   
Dries committed
890
891
892
893
894
  if (isset($node->title)) {
    $node->title = strip_tags($node->title);
    if (!$node->title) {
      $error["title"] = theme("theme_error", t("You have to specify a valid title."));
    }
Dries's avatar
   
Dries committed
895
896
  }

897
898
899
900
901
902
903
904
905
906
907
908
  /*
  ** Common default values:
  */

  $node->teaser = node_teaser($node->body);

  /*
  ** Create a new revision when required:
  */

  $node = node_revision_create($node);

Dries's avatar
   
Dries committed
909
910
911
912
913
914
  if (user_access("administer nodes")) {

    /*
    ** Setup default values if required:
    */

Dries's avatar
   
Dries committed
915
916
    if (!$node->created) {
      $node->created = time();
Dries's avatar
   
Dries committed
917
918
    }

Dries's avatar
   
Dries committed
919
920
    if (!$node->date) {
      $node->date = date("M j, Y g:i a", $node->created);
Dries's avatar
   
Dries committed
921
    }
Kjartan's avatar
Kjartan committed
922

923
924
925
    if (!is_numeric($node->status)) {
      $node->status = 1;
    }
Dries's avatar
   
Dries committed
926
927
928
929
930

    /*
    ** Validate the "authored by"-field:
    */

Dries's avatar
   
Dries committed
931
932
933
934
935
936
937
938
939
    if (empty($node->name)) {
      /*
      ** The use of empty() is mandatory in the context of usernames
      ** as the empty string denotes the anonymous user.  In case we
      ** are dealing with an anomymous user we set the user ID to 0.
      */
      $node->uid = 0;
    }
    else if ($account = user_load(array("name" => $node->name))) {
Dries's avatar
   
Dries committed
940
      $node->uid = $account->uid;
Dries's avatar
   
Dries committed
941
942
    }
    else {
943
      $error["name"] = theme("theme_error", t("The name '%u' does not exist.", array ("%u" => $node->name)));
Dries's avatar
   
Dries committed
944
945
946
947
948
949
    }

    /*
    ** Validate the "authored on"-field:
    */

Dries's avatar
   
Dries committed
950
951
    if (strtotime($node->date) > 1000) {
      $node->created = strtotime($node->date);
Dries's avatar
   
Dries committed
952
953
    }
    else {
954
      $error["date"] = theme("theme_error", t("You have to specifiy a valid date."));
Dries's avatar
   
Dries committed
955
956
    }
  }
957
958
959
  else {
    // Validate for normal users:
    $node->uid = $user->uid ? $user->uid : 0;
Kjartan's avatar
Kjartan committed
960
    // Force defaults in case people modify the form:
Kjartan's avatar
Kjartan committed
961
962
963
964
965
    $node->status = variable_get("node_status_$node->type", 1);
    $node->promote = variable_get("node_promote_$node->type", 1);
    $node->moderate = variable_get("node_moderate_$node->type", 0);
    $node->static = variable_get("node_static_$node->type", 0);
    $node->revision = variable_get("node_revision_$node->type", 0);
Kjartan's avatar
Kjartan committed
966
967
968
969
970
    unset($node->created);
  }

  // Workflow:
  if ($node->moderate == 1) {
971
972
    $node->promote = 0;
  }
Dries's avatar
   
Dries committed
973

Dries's avatar
   
Dries committed
974
975
976
977
  /*
  ** Do node type specific validation checks.
  */

978
979
  $result = node_invoke($node, "validate");
  $error = $error + (is_array($result) ? $result : array()) + node_invoke_all($node, "nodeapi", "validate");
Dries's avatar
   
Dries committed
980

Dries's avatar
   
Dries committed
981
  return $node;
Dries's avatar
   
Dries committed
982
983
}

Dries's avatar
   
Dries committed
984

Dries's avatar
   
Dries committed
985
function node_form($edit, $error = NULL) {
Dries's avatar
   
Dries committed
986

Dries's avatar
   
Dries committed
987
988
989
990
991
992
993
  /*
  ** Save the referer.  We record where the user came from such that we
  ** can redirect him after having completed the node forms.
  */

  referer_save();

Dries's avatar
   
Dries committed
994
995
996
997
  /*
  ** Validate the node:
  */

Dries's avatar
   
Dries committed
998
  if (!$error) {
999
1000
    /* Only validate if we don't already know the errors. */
    $edit = node_validate($edit, $error);