node.module 39.5 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
  }

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

Dries's avatar
   
Dries committed
40
41
42
43
44
45
46
// 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
47
    $result = db_query("SELECT timestamp FROM history WHERE uid = %d AND nid = %d", $user->uid, $nid);
Dries's avatar
   
Dries committed
48
    if (db_fetch_object($result)) {
Dries's avatar
   
Dries committed
49
      db_query("UPDATE history SET timestamp = %d WHERE uid = %d AND nid = %d", time(), $user->uid, $nid);
Dries's avatar
   
Dries committed
50
51
    }
    else {
Dries's avatar
   
Dries committed
52
      db_query("INSERT INTO history (uid, nid, timestamp) VALUES (%d, %d, %d)", $user->uid, $nid, time());
Dries's avatar
   
Dries committed
53
54
55
56
57
58
59
60
61
62
63
    }
  }
}

/*
** 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
64
  $history = db_fetch_object(db_query("SELECT timestamp FROM history WHERE uid = '$user->uid' AND nid = %d", $nid));
Dries's avatar
   
Dries committed
65
66
67
68
69
70
71
72
73
74
75
76
77
  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
78
  if (!isset($cache[$nid])) {
Dries's avatar
   
Dries committed
79
    if ($user->uid) {
Dries's avatar
   
Dries committed
80
      $history = db_fetch_object(db_query("SELECT timestamp FROM history WHERE uid = %d AND nid = %d", $user->uid, $nid));
Dries's avatar
   
Dries committed
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
      $cache[$nid] = $history->timestamp ? $history->timestamp : 0;
    }
    else {
      $cache[$nid] = time();
    }
  }

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

Dries's avatar
   
Dries committed
96
97
function node_teaser($body) {

Dries's avatar
   
Dries committed
98
99
100
101
102
103
104
105
106
107
  $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
108
109
110
111
112
113
114
115
116
117

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

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

  /*
Dries's avatar
   
Dries committed
118
  ** If a valid delimiter has been specified, use it to
Dries's avatar
   
Dries committed
119
120
  ** chop of the teaser.  The delimiter can be outside
  ** the allowed range but no more than a factor two.
Dries's avatar
   
Dries committed
121
122
  */

Dries's avatar
Dries committed
123
  $delimiter = strpos($body, "<!--break-->");
Dries's avatar
   
Dries committed
124
  if ($delimiter > 0 && $delimiter < $size * 2) {
Dries's avatar
   
Dries committed
125
126
127
128
129
130
131
    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
132
133
  */

Dries's avatar
   
Dries committed
134
  if ($length = strpos($body, "<br />", $size)) {
Dries's avatar
   
Dries committed
135
    return substr($body, 0, $length);
Dries's avatar
   
Dries committed
136
137
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, "</p>", $size)) {
Dries's avatar
   
Dries committed
143
144
145
146
147
    return substr($body, 0, $length);
  }

  if ($length = strpos($body, "\n", $size)) {
    return substr($body, 0, $length);
Dries's avatar
   
Dries committed
148
149
  }

Dries's avatar
   
Dries committed
150
  /*
Dries's avatar
   
Dries committed
151
  ** When even the first paragraph is too long, try to
Dries's avatar
   
Dries committed
152
  ** split at the end of the next sentence.
Dries's avatar
   
Dries committed
153
154
  */

Dries's avatar
   
Dries committed
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
  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
170

Dries's avatar
   
Dries committed
171
  return substr($body, 0, $size);
Dries's avatar
   
Dries committed
172
173
}

174
function node_invoke(&$node, $hook, $arg = 0) {
Dries's avatar
   
Dries committed
175
  if (is_array($node)) {
176
    $function = $node["type"] ."_$hook";
Dries's avatar
   
Dries committed
177
178
  }
  else if (is_object($node)) {
179
    $function = $node->type ."_$hook";
Dries's avatar
   
Dries committed
180
181
  }
  else if (is_string($node)) {
182
    $function = $node ."_$hook";
Dries's avatar
   
Dries committed
183
184
185
186
187
188
189
  }

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

190
function node_invoke_all(&$node, $hook, $op, $arg = 0) {
191
192
  $return = array();
  foreach (module_list() as $name) {
193
    if ((module_hook($name, "node") || module_hook($name, "nodeapi")) && module_hook($name, $hook)) {
194
195
196
197
198
199
200
201
202
203
      $function = $name ."_". $hook;
      $result = $function($node, $op, $arg);
      if (isset($result)) {
        $return = array_merge($return, $result);
      }
    }
  }
  return $return;
}

Dries's avatar
   
Dries committed
204
205
206
207
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
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;
}

242
function node_save($node) {
Dries's avatar
   
Dries committed
243

244
245
246
247
  /*
  ** Fetch fields to save to node table:
  */
  $fields = node_invoke_all($node, "nodeapi", "fields");
Dries's avatar
   
Dries committed
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266

  /*
  ** 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
267
    // Set some required fields:
268
269
270
    if (!$node->created) {
      $node->created = time();
    }
Dries's avatar
   
Dries committed
271
    $node->changed = time();
Dries's avatar
   
Dries committed
272
    $node->nid = db_next_id("node_nid");
Dries's avatar
   
Dries committed
273

Dries's avatar
   
Dries committed
274
    // Prepare the query:
Dries's avatar
   
Dries committed
275
276
277
278
279
280
281
    foreach ($node as $key => $value) {
      if (in_array($key, $fields)) {
        $k[] = check_query($key);
        $v[] = "'". check_query($value) ."'";
      }
    }

Dries's avatar
   
Dries committed
282
    // Insert the node into the database:
Dries's avatar
   
Dries committed
283
284
    db_query("INSERT INTO node (". implode(", ", $k) .") VALUES (". implode(", ", $v) .")");

Dries's avatar
   
Dries committed
285
    // Call the node specific callback (if any):
286
287
    node_invoke($node, "insert");
    node_invoke_all($node, "nodeapi", "insert");
Dries's avatar
   
Dries committed
288
289
290
291
292
293
294
  }
  else {

    /*
    ** Update an existing node:
    */

Dries's avatar
   
Dries committed
295
    // Set some required fields:
Dries's avatar
   
Dries committed
296
297
    $node->changed = time();

Dries's avatar
   
Dries committed
298
    // Prepare the query:
Dries's avatar
   
Dries committed
299
300
301
302
303
304
    foreach ($node as $key => $value) {
      if (in_array($key, $fields)) {
        $q[] = check_query($key) ." = '". check_query($value) ."'";
      }
    }

Dries's avatar
   
Dries committed
305
    // Update the node in the database:
Dries's avatar
   
Dries committed
306
307
    db_query("UPDATE node SET ". implode(", ", $q) ." WHERE nid = '$node->nid'");

Dries's avatar
   
Dries committed
308
    // Call the node specific callback (if any):
309
310
    node_invoke($node, "update");
    node_invoke_all($node, "nodeapi", "update");
Dries's avatar
   
Dries committed
311
312
  }

Dries's avatar
   
Dries committed
313
  /*
Dries's avatar
   
Dries committed
314
315
  ** Clear the cache so an anonymous poster can see the node being
  ** added or updated.
Dries's avatar
   
Dries committed
316
317
318
319
  */

  cache_clear_all();

Dries's avatar
   
Dries committed
320
321
322
323
324
325
326
327
328
  /*
  ** Return the node ID:
  */

  return $node->nid;

}

function node_view($node, $main = 0) {
Dries's avatar
   
Dries committed
329

Dries's avatar
   
Dries committed
330

Dries's avatar
   
Dries committed
331
  $node = array2object($node);
Dries's avatar
   
Dries committed
332

Dries's avatar
   
Dries committed
333
334
  /*
  ** Remove the delimiter (if any) that seperates the teaser from the
Dries's avatar
Dries committed
335
  ** body. TODO: this strips legitimate uses of '<!--break-->' also.
Dries's avatar
   
Dries committed
336
337
  */

Dries's avatar
Dries committed
338
  $node->body = str_replace("<!--break-->", "", $node->body);
Dries's avatar
   
Dries committed
339

Dries's avatar
   
Dries committed
340
341
342
343
344
345
346
347
348
349
350
351
352
353
  /*
  ** 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
354
    theme("node", $node, $main);
Dries's avatar
   
Dries committed
355
356
357
  }
}

Dries's avatar
   
Dries committed
358

Dries's avatar
   
Dries committed
359
function node_show($nid, $cid) {
Dries's avatar
   
Dries committed
360
  global $revision;
Dries's avatar
   
Dries committed
361
362
363
364
365
366
367
368
369
370
371
372
373

  $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
374
375
376
377
378
379

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

    node_tag_new($node->nid);
Dries's avatar
   
Dries committed
380
381
382
  }
}

Dries's avatar
   
Dries committed
383
384
function node_access($op, $node = 0) {

Dries's avatar
   
Dries committed
385
386
  if (user_access("administer nodes")) {
    return 1;
Dries's avatar
   
Dries committed
387
388
  }

Dries's avatar
   
Dries committed
389
390
391
  /*
  ** Convert the node to an object if necessary:
  */
Dries's avatar
   
Dries committed
392

Dries's avatar
   
Dries committed
393
  $node = array2object($node);
Dries's avatar
   
Dries committed
394

Dries's avatar
   
Dries committed
395
396
397
  /*
  ** Construct a function:
  */
Dries's avatar
   
Dries committed
398

Dries's avatar
   
Dries committed
399
400
401
402
403
404
  if ($node->type) {
    $type = $node->type;
  }
  else {
    $type = $node;
  }
Dries's avatar
   
Dries committed
405

Dries's avatar
   
Dries committed
406
  $function = $type ."_access";
Dries's avatar
   
Dries committed
407

Dries's avatar
   
Dries committed
408
409
410
411
412
  if (function_exists($function)) {
    return $function($op, $node);
  }
  else {
    return 0;
Dries's avatar
   
Dries committed
413
414
415
  }
}

Dries's avatar
   
Dries committed
416
function node_perm() {
Dries's avatar
   
Dries committed
417
  return array("administer nodes", "access content");
Dries's avatar
   
Dries committed
418
419
}

Dries's avatar
   
Dries committed
420
function node_search($keys) {
Dries's avatar
   
Dries committed
421
  global $PHP_SELF;
Dries's avatar
   
Dries committed
422

Kjartan's avatar
Kjartan committed
423
424
425
426
427
428
429
430
431
432
433
434
  // 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
435
  // table to the data that the search_index table has in it, and the the
Kjartan's avatar
Kjartan committed
436
437
  // do_search functino will rank it.
  //
Dries's avatar
   
Dries committed
438
  // The select must always provide the following fields - lno, title,
Kjartan's avatar
Kjartan committed
439
440
  // created, uid, name, count
  //
Kjartan's avatar
Kjartan committed
441
  $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
442

Dries's avatar
   
Dries committed
443
444
445
  return $find;
}

446
function node_settings() {
Dries's avatar
   
Dries committed
447
  $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
448
  $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
449
450
451
  return $output;
}

Dries's avatar
CHANGES    
Dries committed
452
function node_conf_filters() {
Dries's avatar
   
Dries committed
453
  $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."));
454
  $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
455
  $output .= "<hr />";
Dries's avatar
   
Dries committed
456
457
  // $output .= form_select(t("Enable link tags"), "filter_link", variable_get("filter_link", 0), array(t("Disabled"), t("Enabled")), t("Substitute special [[nodesubject|text]] tags. Your browser will display 'text', and when you click on it your browser will open the node with the subject 'nodesubject'. Please be aware that you'll need to copy the subject of the target node exactly in order to use this feature."));
  // $output .= "<hr />";
Dries's avatar
CHANGES    
Dries committed
458
459
460
461
462
463
464
465
466
  return $output;
}

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

function node_filter_link($text) {
467
  $pat = '\[{2}([^\|]+)(\|([^\|]+)?)?\]{2}';                   // [link|description]
Dries's avatar
   
Dries committed
468
//  $dst = str_replace('%5C1', '\\1', format_tag('\\1', '\\3')); // [link|description]
469
  return ereg_replace($pat, $dst, $text);
Dries's avatar
   
Dries committed
470
471
}

Dries's avatar
   
Dries committed
472
function node_comment_mode($nid) {
Dries's avatar
   
Dries committed
473
474
  static $comment_mode;
  if (!isset($comment_mode[$nid])) {
Dries's avatar
   
Dries committed
475
    $comment_mode[$nid] = db_result(db_query("SELECT comment FROM node WHERE nid = %d", $nid));
Dries's avatar
   
Dries committed
476
477
  }
  return $comment_mode[$nid];
Dries's avatar
   
Dries committed
478
479
}

Dries's avatar
CHANGES    
Dries committed
480
function node_filter($text) {
Dries's avatar
   
Dries committed
481
482
483
484
485
  $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
CHANGES    
Dries committed
486
  if (variable_get("filter_html", 0)) $text = node_filter_html($text);
Dries's avatar
   
Dries committed
487
  // if (variable_get("filter_link", 0)) $text = node_filter_link($text);
Dries's avatar
   
Dries committed
488
489

  return trim($text);
Dries's avatar
CHANGES    
Dries committed
490
491
}

492
function node_link($type, $node = 0, $main = 0) {
Dries's avatar
   
Dries committed
493

Dries's avatar
   
Dries committed
494
495
  $links = array();

Dries's avatar
   
Dries committed
496
  if ($type == "page") {
Dries's avatar
   
Dries committed
497
    $links[] = l(t("submit"), "node/add", array("title" => t("Submit or suggest new content.")));
Dries's avatar
   
Dries committed
498
499
  }

Dries's avatar
   
Dries committed
500
  if ($type == "node") {
Kjartan's avatar
Kjartan committed
501
502
503
    if ($node->links) {
      $links = $node->links;
    }
Dries's avatar
   
Dries committed
504

505
    if ($main == 1 && $node->teaser && $node->teaser != $node->body) {
Dries's avatar
   
Dries committed
506
      $links[] = l(t("read more"), "node/view/$node->nid", array("title" => t("Read the rest of this posting.")));
Dries's avatar
   
Dries committed
507
    }
Dries's avatar
   
Dries committed
508
509

    if (user_access("administer nodes")) {
Dries's avatar
   
Dries committed
510
       $links[] = l(t("administer"), "admin/node/edit/$node->nid", array("title" => t("Administer this node.")));
Dries's avatar
   
Dries committed
511
    }
Dries's avatar
   
Dries committed
512
513
  }

Dries's avatar
   
Dries committed
514
  if ($type == "admin" && user_access("administer nodes")) {
Dries's avatar
   
Dries committed
515
    $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
516

517
    menu("admin/node", "content management", "node_admin");
Dries's avatar
   
Dries committed
518
519
    menu("admin/node/nodes", "post overview");
    menu("admin/node/nodes/0", "new or updated posts", "node_admin", NULL, 0);
520
    menu("admin/node/nodes/1", "approval queue", "node_admin", NULL, 1);
Dries's avatar
   
Dries committed
521
    menu("admin/node/search", "search posts", "node_admin", $help["search"], 8);
Dries's avatar
   
Dries committed
522
523
    menu("admin/node/help", "help", "node_help", NULL, 9);
    menu("admin/node/edit", "edit node", "node_admin", NULL, 0, 1);
524
    menu("admin/node/settings", "content settings", "node_admin", NULL, 8);
Dries's avatar
   
Dries committed
525
526
  }

Dries's avatar
   
Dries committed
527
  return $links;
Dries's avatar
   
Dries committed
528
529
}

Dries's avatar
   
Dries committed
530
function node_admin_edit($node) {
Dries's avatar
   
Dries committed
531

Dries's avatar
   
Dries committed
532
  if (is_numeric($node)) {
Dries's avatar
   
Dries committed
533
    $node = node_load(array("nid" => $node));
Dries's avatar
   
Dries committed
534
  }
Dries's avatar
   
Dries committed
535

Dries's avatar
   
Dries committed
536
537
538
  /*
  ** Edit node:
  */
Dries's avatar
   
Dries committed
539

Dries's avatar
   
Dries committed
540
  $output .= "<h3>". t("Edit %module", array("%module" => module_invoke($node->type, "node", "name"))) ."</h3>";
Dries's avatar
   
Dries committed
541

Dries's avatar
   
Dries committed
542
  $output .= node_form($node);
Dries's avatar
   
Dries committed
543

Dries's avatar
   
Dries committed
544
545
546
547
548
549
550
  /*
  ** Edit revisions:
  */

  if ($node->revisions) {
    $output .= "<h3>". t("Edit revisions") ."</h3>";
    $output .= "<table border=\"1\" cellpadding=\"2\" cellspacing=\"2\">";
Dries's avatar
   
Dries committed
551
    $output .= " <tr><th>". t("older revisions") ."</th><th colspan=\"3\">". t("operations") ."</th></tr>";
Dries's avatar
   
Dries committed
552
    foreach ($node->revisions as $key => $revision) {
Dries's avatar
Dries committed
553
      $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
554
555
556
557
    }
    $output .= "</table>";
  }

Dries's avatar
   
Dries committed
558
  /*
Dries's avatar
   
Dries committed
559
  ** Display the node form extensions:
Dries's avatar
   
Dries committed
560
  */
Dries's avatar
   
Dries committed
561

Dries's avatar
   
Dries committed
562
563
  foreach (module_list() as $name) {
    $output .= module_invoke($name, "node_link", $node);
Dries's avatar
Dries committed
564
565
  }

Dries's avatar
   
Dries committed
566
  return $output;
Dries's avatar
   
Dries committed
567
568
569

}

Dries's avatar
   
Dries committed
570
function node_admin_nodes() {
Dries's avatar
   
Dries committed
571

Dries's avatar
   
Dries committed
572
  $query = arg(3);
Dries's avatar
   
Dries committed
573
  $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
574

Dries's avatar
   
Dries committed
575
  $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
576

Dries's avatar
   
Dries committed
577
578
  $header = array(t("title"), t("type"), t("author"), t("status"), array("data" => t("operations"), "colspan" => 2));

Dries's avatar
   
Dries committed
579
  while ($node = db_fetch_object($result)) {
Dries's avatar
   
Dries committed
580
    $rows[] = array(l($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
581
  }
Dries's avatar
   
Dries committed
582

Dries's avatar
   
Dries committed
583
584
585
  if ($pager = pager_display(NULL, 50, 0, "admin")) {
    $rows[] = array(array("data" => $pager, "colspan" => 6));
  }
Dries's avatar
   
Dries committed
586

Dries's avatar
   
Dries committed
587
  return table($header, $rows);
Dries's avatar
Dries committed
588
589
}

590
591
592
593
594
595
/*
**
*/

function node_admin_settings($edit) {
  global $op;
Kjartan's avatar
Kjartan committed
596

597
598
599
600
601
602
603
604
  if ($op == t("Save configuration")) {
    /*
    ** Save the configuration options:
    */

    foreach ($edit as $name => $value) {
      variable_set($name, $value);
    }
605
    $output = status(t("the content settings have been saved."));
606
607
608
609
610
611
612
613
614
615
  }

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

    foreach ($edit as $name => $value) {
      variable_del($name);
    }
616
    $output = status(t("the content settings have been reset to their default values."));
617
618
  }

619
  $header = array_merge(array(t("content type")), array_keys(node_invoke_all($node, "nodeapi", "settings")));
620
621
622
623
624
625
626
627
628
629
  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
630

631
  $output .= table($header, $rows);
632

633
  /* This is an idea for the future.
634
635
636
  foreach (module_list() as $name) {
    if (module_hook($name, "node")) {
      $node->type = $name;
Kjartan's avatar
Kjartan committed
637

638
639
640
641
642
643
644
645
646
647
      // 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 />";
648
649
    }
  }
650
  */
651
652
653

  $output .= form_submit(t("Save configuration"));
  $output .= form_submit(t("Reset to defaults"));
Kjartan's avatar
Kjartan committed
654

655
  print form($output);
656
657
658

}

Dries's avatar
   
Dries committed
659
660
661
662
663
664
665
666
667
668
669
670
/*
** 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
671
672
673
function node_revision_create($node) {
  global $user;

Dries's avatar
   
Dries committed
674
675
676
677
678
  /*
  ** '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
679
  if ($node->nid && $node->revision) {
Dries's avatar
   
Dries committed
680
681
682
683
    $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
684
685
686
687
688
  }

  return $node;
}

Dries's avatar
   
Dries committed
689
690
691
/*
** Roll-back to the revision with the specified revision number.
*/
Dries's avatar
   
Dries committed
692

Dries's avatar
   
Dries committed
693
694
function node_revision_rollback($node, $revision) {
  global $user;
Dries's avatar
   
Dries committed
695
696
697
698
699
700
701
702
703
704
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

  /*
  ** 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
730
  watchdog("special", "$node->type: rollbacked to revision #$revision of '$node->title'");
Dries's avatar
   
Dries committed
731
732
}

Dries's avatar
   
Dries committed
733
734
735
736
737
/*
** Delete the revision with specified revision number.
*/

function node_revision_delete($node, $revision) {
Dries's avatar
   
Dries committed
738
739

  unset($node->revisions[$revision]);
Dries's avatar
   
Dries committed
740

Dries's avatar
   
Dries committed
741
  node_save($node, array("nid", "revisions"));
Dries's avatar
   
Dries committed
742

Dries's avatar
   
Dries committed
743
  watchdog("special", "$node->type: removed revision #$revision of '$node->title'");
Dries's avatar
   
Dries committed
744
745
}

Dries's avatar
   
Dries committed
746
747
748
749
750
751
752
753
754
755
756
/*
** 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
757
758
}

Dries's avatar
 
Dries committed
759
function node_admin() {
Dries's avatar
   
Dries committed
760
  global $op, $edit;
Dries's avatar
   
Dries committed
761

Dries's avatar
   
Dries committed
762
  if (user_access("administer nodes")) {
Dries's avatar
   
Dries committed
763

Dries's avatar
   
Dries committed
764
765
766
767
    if (empty($op)) {
      $op = arg(2);
    }

Dries's avatar
   
Dries committed
768
769
770
    /*
    ** Compile a list of the administrative links:
    */
Dries's avatar
Dries committed
771

Dries's avatar
   
Dries committed
772
773
    switch ($op) {
      case "search":
Dries's avatar
   
Dries committed
774
        print search_type("node", url("admin/node/search"));
Dries's avatar
   
Dries committed
775
776
        break;
      case "edit":
Dries's avatar
   
Dries committed
777
        print node_admin_edit(arg(3));
Dries's avatar
   
Dries committed
778
        break;
Dries's avatar
   
Dries committed
779
      case "delete":
Dries's avatar
   
Dries committed
780
        print node_delete(array("nid" => arg(3)));
Dries's avatar
   
Dries committed
781
        break;
Dries's avatar
   
Dries committed
782
      case "rollback+revision":
Dries's avatar
   
Dries committed
783
784
        print node_revision_rollback(node_load(array("nid" => arg(3))), arg(5));
        print node_admin_edit(arg(4));
Dries's avatar
   
Dries committed
785
        break;
Dries's avatar
   
Dries committed
786
      case "delete+revision":
Dries's avatar
   
Dries committed
787
788
        print node_revision_delete(node_load(array("nid" => arg(3))), arg(5));
        print node_admin_edit(arg(4));
Dries's avatar
   
Dries committed
789
        break;
Dries's avatar
   
Dries committed
790
      case t("Preview"):
Dries's avatar
   
Dries committed
791
        $edit = node_validate($edit, $error);
Dries's avatar
   
Dries committed
792
        print node_preview($edit);
Dries's avatar
   
Dries committed
793
        break;
Dries's avatar
   
Dries committed
794
      case t("Submit"):
Dries's avatar
   
Dries committed
795
796
797
        print node_submit($edit);
        break;
      case t("Delete"):
Dries's avatar
   
Dries committed
798
        print node_delete($edit);
Dries's avatar
   
Dries committed
799
        break;
800
801
802
803
804
      case t("Save configuration"):
      case t("Reset to defaults"):
      case "settings":
        print node_admin_settings($edit);
        break;
Dries's avatar
   
Dries committed
805
      default:
Dries's avatar
   
Dries committed
806
        print node_admin_nodes();
Dries's avatar
   
Dries committed
807
808
809
810
    }
  }
  else {
    print message_access();
Dries's avatar
 
Dries committed
811
812
813
  }
}

Dries's avatar
   
Dries committed
814
function node_block($op = "list", $delta = 0) {
Dries's avatar
   
Dries committed
815

Dries's avatar
   
Dries committed
816
817
818
819
820
821
  if ($op == "list") {
    $blocks[0]["info"] = t("Syndicate");
    return $blocks;
  }
  else {
    $block["subject"] = t("Syndicate");
Dries's avatar
   
Dries committed
822
    $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
823

Dries's avatar
   
Dries committed
824
825
    return $block;
  }
Dries's avatar
   
Dries committed
826
827
}

Kjartan's avatar
Kjartan committed
828
function node_feed($nodes = 0, $channel = array()) {
Dries's avatar
   
Dries committed
829
830
  global $base_url;

Kjartan's avatar
Kjartan committed
831
  /*
Dries's avatar
   
Dries committed
832
833
834
835
836
  ** 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
837
  */
Dries's avatar
   
Dries committed
838

Kjartan's avatar
Kjartan committed
839
  if (!$nodes) {
Dries's avatar
   
Dries committed
840
    $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
841
  }
Dries's avatar
   
Dries committed
842

Kjartan's avatar
Kjartan committed
843
844
  while ($node = db_fetch_object($nodes)) {
    $item = node_load(array("nid" => $node->nid));
Dries's avatar
   
Dries committed
845
    $link = url("node/view/$item->nid");
Dries's avatar
   
Dries committed
846
    $items .= format_rss_item($item->title, $link, $item->teaser);
Dries's avatar
   
Dries committed
847
848
  }

Kjartan's avatar
Kjartan committed
849
  $output .= "<?xml version=\"1.0\" ". t("encoding=\"ISO-8859-1\""). "?>\n";
Kjartan's avatar
Kjartan committed
850
  $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
851
    // 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
852
853
  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
854
  if (!$channel["link"]) $channel["link"] = $base_url;
Kjartan's avatar
Kjartan committed
855
856
857
858
  if (!$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
859
860
  $output .= "</rss>\n";

Dries's avatar
   
Dries committed
861
  header("Content-Type: text/xml");
Dries's avatar
   
Dries committed
862
863
864
  print $output;
}

865
function node_validate($node, &$error) {
Dries's avatar
   
Dries committed
866
  global $user;
867
  $error = array();
Dries's avatar
   
Dries committed
868
869
870
871
872

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

Dries's avatar
   
Dries committed
873
  $node = array2object($node);
Dries's avatar
   
Dries committed
874
875
876
877
878

  /*
  ** Validate the title field:
  */

Dries's avatar
   
Dries committed
879
  if (isset($node->title) && !$node->title) {
880
    $error["title"] = theme("theme_error", t("You have to specify a valid title."));
Dries's avatar
   
Dries committed
881
882
  }

883
884
885
886
887
888
889
890
891
892
893
894
  /*
  ** 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
895
896
897
898
899
900
  if (user_access("administer nodes")) {

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

Dries's avatar
   
Dries committed
901
902
    if (!$node->created) {
      $node->created = time();
Dries's avatar
   
Dries committed
903
904
    }

Dries's avatar
   
Dries committed
905
906
    if (!$node->date) {
      $node->date = date("M j, Y g:i a", $node->created);
Dries's avatar
   
Dries committed
907
    }
Kjartan's avatar
Kjartan committed
908

909
910
911
    if (!is_numeric($node->status)) {
      $node->status = 1;
    }
Dries's avatar
   
Dries committed
912
913
914
915
916

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

Dries's avatar
   
Dries committed
917
918
919
920
921
922
923
924
925
    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
926
      $node->uid = $account->uid;
Dries's avatar
   
Dries committed
927
928
    }
    else {
929
      $error["name"] = theme("theme_error", t("The name '%u' does not exist.", array ("%u" => $node->name)));
Dries's avatar
   
Dries committed
930
931
932
933
934
935
    }

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

Dries's avatar
   
Dries committed
936
937
    if (strtotime($node->date) > 1000) {
      $node->created = strtotime($node->date);
Dries's avatar
   
Dries committed
938
939
    }
    else {
940
      $error["date"] = theme("theme_error", t("You have to specifiy a valid date."));
Dries's avatar
   
Dries committed
941
942
    }
  }
943
944
945
  else {
    // Validate for normal users:
    $node->uid = $user->uid ? $user->uid : 0;
Kjartan's avatar
Kjartan committed
946
    // Force defaults in case people modify the form:
Kjartan's avatar
Kjartan committed
947
948
949
950
951
    $node->status = variable_get("node_status_$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
952
953
954
955
956
    unset($node->created);
  }

  // Workflow:
  if ($node->moderate == 1) {
957
958
    $node->promote = 0;
  }
Dries's avatar
   
Dries committed
959

Dries's avatar
   
Dries committed
960
961
962
963
  /*
  ** Do node type specific validation checks.
  */

964
965
  $result = node_invoke($node, "validate");
  $error = $error + (is_array($result) ? $result : array()) + node_invoke_all($node, "nodeapi", "validate");
Dries's avatar
   
Dries committed
966

Dries's avatar
   
Dries committed
967
  return $node;
Dries's avatar
   
Dries committed
968
969
}

Dries's avatar
   
Dries committed
970

Dries's avatar
   
Dries committed
971
function node_form($edit, $error = NULL) {
Dries's avatar
   
Dries committed
972

Dries's avatar
   
Dries committed
973
974
975
976
977
978
979
  /*
  ** 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
980
981
982
983
  /*
  ** Validate the node:
  */

Dries's avatar
   
Dries committed
984
  if (!$error) {
985
986
    /* Only validate if we don't already know the errors. */
    $edit = node_validate($edit, $error);
Dries's avatar
   
Dries committed
987
  }
Dries's avatar
   
Dries committed
988

989
  // Prepend extra node form:
990
  $form = implode("", node_invoke_all($edit, "nodeapi", "form pre", $error));
991

Dries's avatar
   
Dries committed
992
993
994
995
996
997
  /*
  ** Get the node specific bits:
  */

  $function = $edit->type ."_form";
  if (function_exists($function)) {
Kjartan's avatar
Kjartan committed
998
    $form .= $function($edit, $help, $error, $param);
Dries's avatar
   
Dries committed
999
  }
Kjartan's avatar
Kjartan committed
1000