node.module 39 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
26
27
28
29
30
// accepts a db result object which includes nid and title from node table, and name from the user table
// returns an HTML list suitable as content for a block, and eventually other uses.
function node_title_list($result, $title = NULL) {
  // no queries if site is in distress
  if (module_exist("statistics") && throttle_status() > 4) {
    return;
  }

  while ($node = db_fetch_object($result)) {
Dries's avatar
   
Dries committed
31
    $number = module_invoke("comment", "num_all", $node->nid);
Dries's avatar
   
Dries committed
32
33
34
35
    $name = strip_tags(format_name($node)); // required for anonymous users to work
    $items[] = l(check_output($node->title), array("id" => $node->nid), "node", "", array("title" => t("Author: %name, comments: %number", array("%name" => $name, "%number" => $number))));
  }

Dries's avatar
   
Dries committed
36
  return theme_invoke("theme_item_list", $items, $title);
Dries's avatar
   
Dries committed
37
38
}

Dries's avatar
   
Dries committed
39
40
function node_teaser($body) {

Dries's avatar
   
Dries committed
41
42
43
44
45
46
47
48
49
50
  $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
51
52
53
54
55
56
57
58
59
60

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

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

  /*
Dries's avatar
   
Dries committed
61
62
63
64
65
66
67
68
69
70
71
72
73
  ** If a valid delimiter has been specified, use it to
  ** chop of the teaser.
  */

  $delimiter = strpos($body, "---");
  if ($delimiter > 100 && $delimiter < $size) {
    return substr($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
74
75
76
77
78
79
  */

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

Dries's avatar
   
Dries committed
80
  if ($length = strpos($body, "<br />", $size)) {
Dries's avatar
   
Dries committed
81
    return substr($body, 0, $length + 6);
Dries's avatar
   
Dries committed
82
83
84
  }

  if ($length = strpos($body, "<br>", $size)) {
Dries's avatar
   
Dries committed
85
    return substr($body, 0, $length + 4);
Dries's avatar
   
Dries committed
86
87
88
  }

  if ($length = strpos($body, "</p>", $size)) {
Dries's avatar
   
Dries committed
89
    return substr($body, 0, $length + 4);
Dries's avatar
   
Dries committed
90
91
  }

Dries's avatar
   
Dries committed
92
  /*
Dries's avatar
   
Dries committed
93
  ** When even the first paragraph is too long, try to
Dries's avatar
   
Dries committed
94
  ** split at the end of the next sentence.
Dries's avatar
   
Dries committed
95
96
  */

Dries's avatar
   
Dries committed
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
  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
112

Dries's avatar
   
Dries committed
113
  return substr($body, 0, $size);
Dries's avatar
   
Dries committed
114
115
116
117
}

function node_invoke($node, $name, $arg = 0) {
  if (is_array($node)) {
Kjartan's avatar
Kjartan committed
118
    $function = $node["type"] ."_$name";
Dries's avatar
   
Dries committed
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
  }
  else if (is_object($node)) {
    $function = $node->type ."_$name";
  }
  else if (is_string($node)) {
    $function = $node ."_$name";
  }

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

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;
}

function node_save($node, $filter) {

172
  $fields = array("nid", "uid", "type", "title", "teaser", "body", "revisions", "score", "status", "comment", "promote", "static", "moderate", "created", "changed", "users", "votes");
Dries's avatar
   
Dries committed
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214

  foreach ($filter as $key => $value) {
    /*
    ** Only save those fields specified by the filter.  If the filter
    ** does not specify a default value, use the value of the $node's
    ** corresponding field instead.
    */

    if (is_numeric($key)) {
      if (isset($node->$value)) {
          // The above check is mandatory.
        $edit->$value = $node->$value;
      }
    }
    else {
      if (isset($value)) {
          // The above check is mandatory.
        $edit->$key = $value;
      }
    }
  }

  $node = $edit;

  /*
  ** 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
215
    // Set some required fields:
216
217
218
    if (!$node->created) {
      $node->created = time();
    }
Dries's avatar
   
Dries committed
219
    $node->changed = time();
Dries's avatar
   
Dries committed
220
    $node->nid = db_next_id("node");
Dries's avatar
   
Dries committed
221

Dries's avatar
   
Dries committed
222
    // Prepare the query:
Dries's avatar
   
Dries committed
223
224
225
226
227
228
229
    foreach ($node as $key => $value) {
      if (in_array($key, $fields)) {
        $k[] = check_query($key);
        $v[] = "'". check_query($value) ."'";
      }
    }

Dries's avatar
   
Dries committed
230
    // Insert the node into the database:
Dries's avatar
   
Dries committed
231
232
    db_query("INSERT INTO node (". implode(", ", $k) .") VALUES (". implode(", ", $v) .")");

Dries's avatar
   
Dries committed
233
    // Call the node specific callback (if any):
Dries's avatar
   
Dries committed
234
235
236
237
238
239
240
241
    module_invoke($node->type, "insert", $node);
  }
  else {

    /*
    ** Update an existing node:
    */

Dries's avatar
   
Dries committed
242
    // Set some required fields:
Dries's avatar
   
Dries committed
243
244
    $node->changed = time();

Dries's avatar
   
Dries committed
245
    // Prepare the query:
Dries's avatar
   
Dries committed
246
247
248
249
250
251
    foreach ($node as $key => $value) {
      if (in_array($key, $fields)) {
        $q[] = check_query($key) ." = '". check_query($value) ."'";
      }
    }

Dries's avatar
   
Dries committed
252
    // Update the node in the database:
Dries's avatar
   
Dries committed
253
254
    db_query("UPDATE node SET ". implode(", ", $q) ." WHERE nid = '$node->nid'");

Dries's avatar
   
Dries committed
255
    // Call the node specific callback (if any):
Dries's avatar
   
Dries committed
256
257
258
259
    module_invoke($node->type, "update", $node);

  }

Dries's avatar
   
Dries committed
260
261
262
263
264
265
266
  /*
  ** Clear the cache so an anonymous poster can see the node being added
  ** or updated.
  */

  cache_clear_all();

Dries's avatar
   
Dries committed
267
268
269
270
271
272
273
274
275
276
277
  /*
  ** Return the node ID:
  */

  return $node->nid;

}

function node_view($node, $main = 0) {
  global $theme;

Dries's avatar
   
Dries committed
278
  $node = array2object($node);
Dries's avatar
   
Dries committed
279

Dries's avatar
   
Dries committed
280
281
282
283
284
285
286
  /*
  ** Remove the delimiter (if any) that seperates the teaser from the
  ** body.
  */

  $node->body = str_replace("---", "", $node->body);

Dries's avatar
   
Dries committed
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
  /*
  ** 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:
    */

    $theme->node($node, $main);
  }
}

Dries's avatar
   
Dries committed
305
306
function node_access($op, $node = 0) {

Dries's avatar
   
Dries committed
307
308
  if (user_access("administer nodes")) {
    return 1;
Dries's avatar
   
Dries committed
309
310
  }

Dries's avatar
   
Dries committed
311
312
313
  /*
  ** Convert the node to an object if necessary:
  */
Dries's avatar
   
Dries committed
314

Dries's avatar
   
Dries committed
315
  $node = array2object($node);
Dries's avatar
   
Dries committed
316

Dries's avatar
   
Dries committed
317
318
319
  /*
  ** Construct a function:
  */
Dries's avatar
   
Dries committed
320

Dries's avatar
   
Dries committed
321
322
323
324
325
326
  if ($node->type) {
    $type = $node->type;
  }
  else {
    $type = $node;
  }
Dries's avatar
   
Dries committed
327

Dries's avatar
   
Dries committed
328
  $function = $type ."_access";
Dries's avatar
   
Dries committed
329

Dries's avatar
   
Dries committed
330
331
332
333
334
  if (function_exists($function)) {
    return $function($op, $node);
  }
  else {
    return 0;
Dries's avatar
   
Dries committed
335
336
337
  }
}

Dries's avatar
   
Dries committed
338
function node_perm() {
Dries's avatar
   
Dries committed
339
  return array("administer nodes", "access content");
Dries's avatar
   
Dries committed
340
341
}

Dries's avatar
   
Dries committed
342
function node_search($keys) {
Dries's avatar
   
Dries committed
343
  global $PHP_SELF;
Dries's avatar
   
Dries committed
344

Kjartan's avatar
Kjartan committed
345
346
347
348
349
350
351
352
353
354
355
356
  // 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
357
  // table to the data that the search_index table has in it, and the the
Kjartan's avatar
Kjartan committed
358
359
  // do_search functino will rank it.
  //
Dries's avatar
   
Dries committed
360
  // The select must always provide the following fields - lno, title,
Kjartan's avatar
Kjartan committed
361
362
  // created, uid, name, count
  //
Kjartan's avatar
Kjartan committed
363
  $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
364

Dries's avatar
   
Dries committed
365
366
367
  return $find;
}

Dries's avatar
   
Dries committed
368
function node_conf_options() {
Dries's avatar
   
Dries committed
369
370
  $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 the main page."));
  $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
371
372
373
  return $output;
}

Dries's avatar
CHANGES    
Dries committed
374
function node_conf_filters() {
Dries's avatar
   
Dries committed
375
  $output .= form_select(t("Enable HTML tags"), "filter_html", variable_get("filter_html", 0), array(t("Disabled"), t("Enabled")), t("Allow HTML and PHP tags in user-contributed content."));
376
  $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
377
  $output .= "<hr />";
Dries's avatar
   
Dries committed
378
  $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."));
Dries's avatar
   
Dries committed
379
  $output .= "<hr />";
Dries's avatar
CHANGES    
Dries committed
380
381
382
383
384
385
386
387
388
  return $output;
}

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

function node_filter_link($text) {
389
  $pat = '\[{2}([^\|]+)(\|([^\|]+)?)?\]{2}';                   // [link|description]
390
  $dst = str_replace('%5C1', '\\1', format_tag('\\1', '\\3')); // [link|description]
391
  return ereg_replace($pat, $dst, $text);
Dries's avatar
   
Dries committed
392
393
}

Dries's avatar
   
Dries committed
394
function node_filter_line($text) {
Dries's avatar
   
Dries committed
395

Dries's avatar
   
Dries committed
396
  /*
Dries's avatar
   
Dries committed
397
398
399
400
401
402
403
404
405
406
407
408
  ** This "line break filter" will try to get the line breaks right
  ** regardless of the user's input.  Its goal aspires a consistent
  ** mark-up and use of line breaks and paragraphs.
  */

  /*
  ** Replace some common "artifacts":
  */

  $list = "blockquote|li|ol|ul|table|th|td|tr|pre";
  $text = preg_replace(array("/\n\s*<([\/])($list)/", "/($list)>\s*\n/"), array("<$1$2", "$1>"), $text);

Dries's avatar
   
Dries committed
409
410
411
  return trim($text);
}

Dries's avatar
   
Dries committed
412
function node_comment_mode($nid) {
Dries's avatar
   
Dries committed
413
414
415
416
417
  static $comment_mode;
  if (!isset($comment_mode[$nid])) {
    $comment_mode[$nid] = db_result(db_query("SELECT comment FROM node WHERE nid = '%s'", $nid));
  }
  return $comment_mode[$nid];
Dries's avatar
   
Dries committed
418
419
}

Dries's avatar
CHANGES    
Dries committed
420
function node_filter($text) {
Dries's avatar
   
Dries committed
421
422
423
424
425
  $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
426
427
  if (variable_get("filter_html", 0)) $text = node_filter_html($text);
  if (variable_get("filter_link", 0)) $text = node_filter_link($text);
Dries's avatar
   
Dries committed
428
  return node_filter_line($text);
Dries's avatar
CHANGES    
Dries committed
429
430
}

431
function node_link($type, $node = 0, $main = 0) {
Dries's avatar
   
Dries committed
432

Dries's avatar
   
Dries committed
433
  if ($type == "admin" && user_access("administer nodes")) {
Dries's avatar
   
Dries committed
434
    $links[] = la(t("content management"), array("mod" => "node"));
Dries's avatar
   
Dries committed
435
436
  }

Dries's avatar
   
Dries committed
437
  if ($type == "page") {
Kjartan's avatar
Kjartan committed
438
    $links[] = lm(t("submit"), array("mod" => "node", "op" => "add"), "", array("title" => t("Submit or suggest new content.")));
Dries's avatar
   
Dries committed
439
440
  }

Dries's avatar
   
Dries committed
441
  if ($type == "node") {
Kjartan's avatar
Kjartan committed
442
443
444
    if ($node->links) {
      $links = $node->links;
    }
Dries's avatar
   
Dries committed
445

446
    if ($main == 1 && $node->teaser && $node->teaser != $node->body) {
Kjartan's avatar
Kjartan committed
447
      $links[] = l(t("read more"), array("id" => $node->nid), "node", "", array("title" => t("Read the rest of this posting.")));
Dries's avatar
   
Dries committed
448
    }
Dries's avatar
   
Dries committed
449
450

    if (user_access("administer nodes")) {
Kjartan's avatar
Kjartan committed
451
       $links[] = la(t("administer"), array("mod" => "node", "op" => "edit", "id" => $node->nid), "", array("title" => t("Administer this node.")));
Dries's avatar
   
Dries committed
452
    }
Dries's avatar
   
Dries committed
453
454
455
456
457
  }

  return $links ? $links : array();
}

Dries's avatar
   
Dries committed
458
function node_admin_settings($edit = array()) {
Dries's avatar
   
Dries committed
459
460
  global $op;

Dries's avatar
   
Dries committed
461
462
463
464
  if ($op == t("Save configuration")) {
    /*
    ** Save the configuration options:
    */
Dries's avatar
Dries committed
465

Dries's avatar
   
Dries committed
466
467
468
    foreach ($edit as $name => $value) {
      variable_set($name, $value);
    }
Dries's avatar
 
Dries committed
469
470
  }

Dries's avatar
   
Dries committed
471
472
473
474
  if ($op == t("Reset to defaults")) {
    /*
    ** Reset the configuration options to their default value:
    */
Dries's avatar
 
Dries committed
475

476
    foreach ($edit as $name => $value) {
Dries's avatar
   
Dries committed
477
478
      variable_del($name);
    }
Dries's avatar
   
Dries committed
479
  }
Dries's avatar
Dries committed
480

Dries's avatar
   
Dries committed
481
  $output .= "<h3>". t("Global node settings") ."</h3>";
Dries's avatar
   
Dries committed
482
  $output .= node_conf_options();
Dries's avatar
   
Dries committed
483
484
485

  foreach (module_list() as $name) {
    if (module_hook($name, "conf_options") && module_hook($name, "node")) {
Dries's avatar
   
Dries committed
486
      $output .= "<h3>". t("%module settings", array("%module" => ucfirst(module_invoke($name, "node", "name")))) ."</h3>";
Dries's avatar
   
Dries committed
487
488
489
490
      $output .= module_invoke($name, "conf_options");
    }
  }

Dries's avatar
   
Dries committed
491
492
  $output .= form_submit(t("Save configuration"));
  $output .= form_submit(t("Reset to defaults"));
Dries's avatar
Dries committed
493

Dries's avatar
   
Dries committed
494
  return form($output);
Dries's avatar
   
Dries committed
495
496
}

Dries's avatar
   
Dries committed
497
function node_admin_edit($node) {
Dries's avatar
   
Dries committed
498

Dries's avatar
   
Dries committed
499
  if (is_numeric($node)) {
Dries's avatar
   
Dries committed
500
    $node = node_load(array("nid" => $node));
Dries's avatar
   
Dries committed
501
  }
Dries's avatar
   
Dries committed
502

Dries's avatar
   
Dries committed
503
504
505
  /*
  ** Edit node:
  */
Dries's avatar
   
Dries committed
506

Dries's avatar
   
Dries committed
507
  $output .= "<h3>". t("Edit %module", array("%module" => module_invoke($node->type, "node", "name"))) ."</h3>";
Dries's avatar
   
Dries committed
508

Dries's avatar
   
Dries committed
509
  $output .= node_form($node);
Dries's avatar
   
Dries committed
510

Dries's avatar
   
Dries committed
511
512
513
514
515
516
517
  /*
  ** Edit revisions:
  */

  if ($node->revisions) {
    $output .= "<h3>". t("Edit revisions") ."</h3>";
    $output .= "<table border=\"1\" cellpadding=\"2\" cellspacing=\"2\">";
Dries's avatar
   
Dries committed
518
    $output .= " <tr><th>". t("older revisions") ."</th><th colspan=\"3\">". t("operations") ."</th></tr>";
Dries's avatar
   
Dries committed
519
    foreach ($node->revisions as $key => $revision) {
520
      $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"), array("id" => $node->nid, "revision" => $key)) ."</td><td>". la(t("rollback revision"), array("mod" => "node", "op" => "rollback+revision", "id" => $node->nid, "revision" => $key)) ."</td><td>". la(t("delete revision"), array("mod" => "node", "op" => "delete+revision", "id" => $node->nid, "revision" => $key)) ."</td></tr>";
Dries's avatar
   
Dries committed
521
522
523
524
    }
    $output .= "</table>";
  }

Dries's avatar
   
Dries committed
525
  /*
Dries's avatar
   
Dries committed
526
  ** Display the node form extensions:
Dries's avatar
   
Dries committed
527
  */
Dries's avatar
   
Dries committed
528

Dries's avatar
   
Dries committed
529
530
  foreach (module_list() as $name) {
    $output .= module_invoke($name, "node_link", $node);
Dries's avatar
Dries committed
531
532
  }

Dries's avatar
   
Dries committed
533
  return $output;
Dries's avatar
   
Dries committed
534
535
536

}

Dries's avatar
   
Dries committed
537
538
function node_admin_nodes() {
  global $query;
Dries's avatar
   
Dries committed
539

Dries's avatar
   
Dries committed
540
  $queries = array(array("ORDER BY n.created DESC", "new nodes"), array("ORDER BY n.changed DESC", "updated nodes"), array("WHERE n.status = 1 AND n.moderate = 0 ORDER BY n.nid DESC", "published nodes"), array("WHERE n.status = 0 AND n.moderate = 0 ORDER BY n.nid DESC", "non-published nodes"), array("WHERE n.status = 1 AND n.moderate = 1 ORDER BY n.nid DESC", "pending nodes"), array("WHERE n.status = 1 AND n.promote = 1 ORDER BY n.nid DESC", "promoted nodes"));
Dries's avatar
   
Dries committed
541

Dries's avatar
   
Dries committed
542
  $result = pager_query("SELECT n.*, u.name, u.uid FROM node n LEFT JOIN users u ON n.uid = u.uid ". $queries[$query ? $query : 1][0], 50);
Dries's avatar
   
Dries committed
543

Dries's avatar
   
Dries committed
544
  foreach ($queries as $key => $value) {
Dries's avatar
   
Dries committed
545
    $links[] = la($value[1], array("mod" => "node", "op" => "nodes", "query" => $key));
Dries's avatar
Dries committed
546
547
  }

Dries's avatar
   
Dries committed
548
  $output .= "<small>". implode(" :: ", $links) ."</small><hr />";
Dries's avatar
   
Dries committed
549

Dries's avatar
   
Dries committed
550
  $output .= "<table border=\"1\" cellpadding=\"2\" cellspacing=\"2\">\n";
Dries's avatar
   
Dries committed
551
  $output .= " <tr><th>". t("title") ."</th><th>". t("type") ."</th><th>". t("author") ."</th><th>". t("status") ."</th><th colspan=\"2\">". t("operations") ."</th></tr>\n";
Dries's avatar
   
Dries committed
552
  while ($node = db_fetch_object($result)) {
Kjartan's avatar
Kjartan committed
553
    $output .= "<tr><td>". l(check_output($node->title), array("id" => $node->nid)) ."</td><td>". module_invoke($node->type, "node", "name") ."</td><td nowrap=\"nowrap\">". format_name($node) ."</td><td>". ($node->status ? t("published") : t("not published")) ."</td><td nowrap=\"nowrap\">". la(t("edit node"), array("mod" => "node", "op" => "edit", "id" => $node->nid)) ."</td><td nowrap=\"nowrap\">". la(t("delete node"), array("mod" => "node", "op" => "delete", "id" => $node->nid)) ."</td></tr>";
Dries's avatar
   
Dries committed
554
  }
Dries's avatar
   
Dries committed
555
556
  $output .= "<tr><td colspan=\"6\">". pager_display(NULL, 50, 0, "admin") ."</td></tr></table>";

Dries's avatar
   
Dries committed
557

Dries's avatar
   
Dries committed
558
  return $output;
Dries's avatar
Dries committed
559
560
}

Dries's avatar
   
Dries committed
561
562
563
564
565
566
567
568
569
570
571
572
/*
** 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
573
574
575
function node_revision_create($node) {
  global $user;

Dries's avatar
   
Dries committed
576
577
578
579
580
  /*
  ** '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
581
  if ($node->nid && $node->revision) {
Dries's avatar
   
Dries committed
582
583
584
585
    $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
586
587
588
589
590
  }

  return $node;
}

Dries's avatar
   
Dries committed
591
592
593
/*
** Roll-back to the revision with the specified revision number.
*/
Dries's avatar
   
Dries committed
594

Dries's avatar
   
Dries committed
595
596
function node_revision_rollback($node, $revision) {
  global $user;
Dries's avatar
   
Dries committed
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631

  /*
  ** 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
632
  watchdog("special", "$node->type: rollbacked to revision #$revision of '$node->title'");
Dries's avatar
   
Dries committed
633
634
}

Dries's avatar
   
Dries committed
635
636
637
638
639
/*
** Delete the revision with specified revision number.
*/

function node_revision_delete($node, $revision) {
Dries's avatar
   
Dries committed
640
641

  unset($node->revisions[$revision]);
Dries's avatar
   
Dries committed
642

Dries's avatar
   
Dries committed
643
  node_save($node, array("nid", "revisions"));
Dries's avatar
   
Dries committed
644

Dries's avatar
   
Dries committed
645
  watchdog("special", "$node->type: removed revision #$revision of '$node->title'");
Dries's avatar
   
Dries committed
646
647
}

Dries's avatar
   
Dries committed
648
649
650
651
652
653
654
655
656
657
658
/*
** 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
659
660
}

Dries's avatar
 
Dries committed
661
function node_admin() {
Dries's avatar
   
Dries committed
662
  global $op, $id, $revision, $edit;
Dries's avatar
   
Dries committed
663

Dries's avatar
   
Dries committed
664
  if (user_access("administer nodes")) {
Dries's avatar
   
Dries committed
665

Dries's avatar
   
Dries committed
666
667
668
    /*
    ** Compile a list of the administrative links:
    */
Dries's avatar
Dries committed
669

Dries's avatar
   
Dries committed
670
671
672
673
    $links[] = la(t("nodes"), array("mod" => "node", "op" => "nodes"));
    $links[] = la(t("search content"), array("mod" => "node", "op" => "search"));
    $links[] = la(t("settings"), array("mod" => "node", "op" => "settings"));
    $links[] = la(t("help"), array("mod" => "node", "op" => "help"));
Dries's avatar
   
Dries committed
674

Dries's avatar
   
Dries committed
675
    print "<small>". implode(" &middot; ", $links) ."</small><hr />";
Dries's avatar
   
Dries committed
676
677
678
679
680
681

    switch ($op) {
      case "help":
        print node_help();
        break;
      case "search":
Dries's avatar
   
Dries committed
682
        print search_type("node", drupal_url(array("mod" => "node", "op" => "search"), "admin"));
Dries's avatar
   
Dries committed
683
        break;
Dries's avatar
   
Dries committed
684
685
686
687
      case t("Save configuration"):
      case t("Reset to defaults"):
      case "settings":
        print node_admin_settings($edit);
Dries's avatar
   
Dries committed
688
689
        break;
      case "edit":
Dries's avatar
   
Dries committed
690
        print node_admin_edit($id);
Dries's avatar
   
Dries committed
691
        break;
Dries's avatar
   
Dries committed
692
693
694
      case "delete":
        print node_delete(array("nid" => $id));
        break;
Dries's avatar
   
Dries committed
695
      case "rollback+revision":
Dries's avatar
   
Dries committed
696
697
        print node_revision_rollback(node_load(array("nid" => $id)), $revision);
        print node_admin_edit($id);
Dries's avatar
   
Dries committed
698
        break;
Dries's avatar
   
Dries committed
699
      case "delete+revision":
Dries's avatar
   
Dries committed
700
701
        print node_revision_delete(node_load(array("nid" => $id)), $revision);
        print node_admin_edit($id);
Dries's avatar
   
Dries committed
702
        break;
Dries's avatar
   
Dries committed
703
      case t("Preview"):
Dries's avatar
   
Dries committed
704
        $edit = object2array(node_validate($edit, $error));
Dries's avatar
   
Dries committed
705
        print node_preview($edit);
Dries's avatar
   
Dries committed
706
        break;
Dries's avatar
   
Dries committed
707
      case t("Submit"):
Dries's avatar
   
Dries committed
708
709
710
        print node_submit($edit);
        break;
      case t("Delete"):
Dries's avatar
   
Dries committed
711
        print node_delete($edit);
Dries's avatar
   
Dries committed
712
        break;
Dries's avatar
   
Dries committed
713
      default:
Dries's avatar
   
Dries committed
714
        print node_admin_nodes();
Dries's avatar
   
Dries committed
715
716
717
718
    }
  }
  else {
    print message_access();
Dries's avatar
 
Dries committed
719
720
721
  }
}

Dries's avatar
   
Dries committed
722
function node_block($op = "list", $delta = 0) {
Dries's avatar
   
Dries committed
723
  global $theme;
Dries's avatar
   
Dries committed
724
725
726
727
728
729
730
  if ($op == "list") {
    $blocks[0]["info"] = t("Syndicate");
    return $blocks;
  }
  else {
    $block["subject"] = t("Syndicate");
    $block["content"] = "<div align=\"center\">". lm("<img src=\"". $theme->image("xml.gif") ."\" width=\"36\" height=\"14\" border=\"0\" alt=\"XML\" />", array("mod" => "node", "op" => "feed"), "", array("title" => t("Read the XML version of this page."))) ."</div>\n";
Dries's avatar
   
Dries committed
731

Dries's avatar
   
Dries committed
732
733
    return $block;
  }
Dries's avatar
   
Dries committed
734
735
}

Kjartan's avatar
Kjartan committed
736
737
738
739
740
741
function node_feed($nodes = 0, $channel = array()) {
  /*
    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
  */
Dries's avatar
   
Dries committed
742

Kjartan's avatar
Kjartan committed
743
744
745
  if (!$nodes) {
    $nodes = db_query("SELECT nid FROM node WHERE promote = '1' AND status = '1' ORDER BY created DESC LIMIT 15");
  }
Dries's avatar
   
Dries committed
746

Kjartan's avatar
Kjartan committed
747
748
749
  while ($node = db_fetch_object($nodes)) {
    $item = node_load(array("nid" => $node->nid));
    $link = path_uri(). drupal_url(array("id" => $item->nid), "node");
Dries's avatar
   
Dries committed
750
    $items .= format_rss_item($item->title, $link, $item->teaser);
Dries's avatar
   
Dries committed
751
752
  }

Kjartan's avatar
Kjartan committed
753
  $output .= "<?xml version=\"1.0\" ". t("encoding=\"ISO-8859-1\""). "?>\n";
Dries's avatar
   
Dries committed
754
  // $output .= "<!DOCTYPE rss [<!ENTITY % HTMLlat1 PUBLIC \"-//W3C//ENTITIES Latin 1 for XHTML//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml-lat1.ent\">\n";
Kjartan's avatar
Kjartan committed
755
756
757
758
759
760
761
  if (!$channel["version"]) $channel["version"] = "0.91";
  if (!$channel["title"]) $channel["title"] = variable_get("site_name", "drupal") ." - ". variable_get("site_slogan", "");
  if (!$channel["link"]) $channel["link"] = path_uri();
  if (!$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
762
763
  $output .= "</rss>\n";

Dries's avatar
   
Dries committed
764
  header("Content-Type: text/xml");
Dries's avatar
   
Dries committed
765
766
767
  print $output;
}

768
function node_validate($node, &$error) {
Dries's avatar
   
Dries committed
769
770
771
772
773
774
775

  global $user;

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

Dries's avatar
   
Dries committed
776
  $node = array2object($node);
Dries's avatar
   
Dries committed
777
778
779
780
781

  /*
  ** Validate the title field:
  */

Dries's avatar
   
Dries committed
782
  if (isset($node->title) && !$node->title) {
Dries's avatar
   
Dries committed
783
    $error["title"] = theme_invoke("theme_error", t("You have to specify a valid title."));
Dries's avatar
   
Dries committed
784
785
786
787
788
789
790
791
  }

  if (user_access("administer nodes")) {

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

Dries's avatar
   
Dries committed
792
793
    if (!$node->created) {
      $node->created = time();
Dries's avatar
   
Dries committed
794
795
    }

Dries's avatar
   
Dries committed
796
797
    if (!$node->date) {
      $node->date = date("M j, Y g:i a", $node->created);
Dries's avatar
   
Dries committed
798
799
800
801
802
803
    }

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

Dries's avatar
   
Dries committed
804
805
806
807
808
809
810
811
812
    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
813
      $node->uid = $account->uid;
Dries's avatar
   
Dries committed
814
815
    }
    else {
Dries's avatar
   
Dries committed
816
      $error["name"] = theme_invoke("theme_error", t("The name '%u' does not exist.", array ("%u" => $node->name)));
Dries's avatar
   
Dries committed
817
818
819
820
821
822
    }

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

Dries's avatar
   
Dries committed
823
824
    if (strtotime($node->date) > 1000) {
      $node->created = strtotime($node->date);
Dries's avatar
   
Dries committed
825
826
    }
    else {
Dries's avatar
   
Dries committed
827
      $error["date"] = theme_invoke("theme_error", t("You have to specifiy a valid date."));
Dries's avatar
   
Dries committed
828
829
830
    }
  }

Dries's avatar
   
Dries committed
831
832
833
834
835
836
837
838
839
  /*
  ** Do node type specific validation checks.
  */

  $function = $node->type ."_validate";
  if (function_exists($function)) {
    $node = $function($node, $error);
  }

Dries's avatar
   
Dries committed
840
  return $node;
Dries's avatar
   
Dries committed
841
842
}

Dries's avatar
   
Dries committed
843

Dries's avatar
   
Dries committed
844
function node_form($edit, $error = NULL) {
Dries's avatar
   
Dries committed
845

Dries's avatar
   
Dries committed
846
847
848
849
850
851
852
  /*
  ** 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
853
854
855
856
  /*
  ** Validate the node:
  */

Dries's avatar
   
Dries committed
857
  if (!$error) {
858
859
    /* Only validate if we don't already know the errors. */
    $edit = node_validate($edit, $error);
Dries's avatar
   
Dries committed
860
  }
Dries's avatar
   
Dries committed
861

Dries's avatar
   
Dries committed
862
863
864
865
866
867
  /*
  ** Get the node specific bits:
  */

  $function = $edit->type ."_form";
  if (function_exists($function)) {
Kjartan's avatar
Kjartan committed
868
    $form .= $function($edit, $help, $error, $param);
Dries's avatar
   
Dries committed
869
870
871
872
873
874
875
876
877
878
  }

  /*
  ** Add the help text:
  */

  if ($help) {
    $output .= "<p>$help</p>";
  }

Dries's avatar
   
Dries committed
879
880
881
882
  $output .= "<table border=\"0\" cellpadding=\"2\" cellspacing=\"2\">";
  $output .= " <tr>";
  $output .= "  <td valign=\"top\">";

Dries's avatar
   
Dries committed
883
884
885
886
887
888
889
  /*
  ** Add the default fields:
  */

  $output .= form_textfield(t("Title"), "title", $edit->title, 60, 64, $error["title"]);

  /*
Dries's avatar
   
Dries committed
890
  ** Add the node specific fields:
Dries's avatar
   
Dries committed
891
892
  */

Dries's avatar
   
Dries committed
893
  $output .= $form;
Dries's avatar
   
Dries committed
894
895
896
897
898
899
900
901
902

  /*
  ** Add the hidden fields:
  */

  if ($edit->nid) {
    $output .= form_hidden("nid", $edit->nid);
  }

Dries's avatar
   
Dries committed
903
904
905
906
907
  if (isset($edit->uid)) {
      /*
      ** The use of isset() is mandatory in the context of user IDs as uid
      ** 0 denotes the anonymous user.
      */
Dries's avatar
   
Dries committed
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
    $output .= form_hidden("uid", $edit->uid);
  }

  if ($edit->created) {
    $output .= form_hidden("created", $edit->created);
  }

  $output .= form_hidden("type", $edit->type);

  /*
  ** Add the buttons:
  */

  $output .= form_submit(t("Preview"));

  if ($edit->title && $edit->type && !$error) {
    $output .= form_submit(t("Submit"));
  }

Dries's avatar
   
Dries committed
927
  if ($edit->nid && node_access("delete", $edit)) {
Dries's avatar
   
Dries committed
928
929
930
931
932
933
934
935
    $output .= form_submit(t("Delete"));
  }

  /*
  ** Add the admin specific parts:
  */

  if (user_access("administer nodes")) {
Dries's avatar
   
Dries committed
936
    $output .= "</td><td align=\"left\" valign=\"top\">";
937
    $output .= form_textfield(t("Authored by"), "name", $edit->name, 20, 60, $error["name"]);
Dries's avatar
   
Dries committed
938
939
    $output .= form_textfield(t("Authored on"), "date", $edit->date, 20, 25, $error["date"]);
    $output .= "<br />";
Dries's avatar
   
Dries committed
940
    $output .= form_select(t("Moderation status"), "moderate", $edit->moderate, array(t("Approved"), t("Awaiting approval")));
Dries's avatar
   
Dries committed
941
942
    $output .= form_select(t("Promote to front page"), "promote", $edit->promote, array(t("Disabled"), t("Enabled")));
    $output .= form_select(t("Static on front page"), "static", $edit->static, array(t("Disabled"), t("Enabled")));
Kjartan's avatar
Kjartan committed
943
944
    // TODO: move this to the comment.module
    if (module_exist("comment")) {
Dries's avatar
   
Dries committed
945
      $output .= form_select(t("Allow users comments"), "comment", $edit->comment, array(t("Disabled"), t("Read only"), t("Read-write")));
Kjartan's avatar
Kjartan committed
946
    }
Dries's avatar
   
Dries committed
947
    $output .= form_select(t("Create new revision"), "revision", $edit->revision, array(t("Disabled"), t("Enabled")));
Dries's avatar
   
Dries committed
948
949
  }

Dries's avatar
   
Dries committed
950
951
952
953
  $output .= "  </td>";
  $output .= " </tr>";
  $output .= "</table>";

Kjartan's avatar
Kjartan committed
954
  return form($output, ($param["method"] ? $param["method"] : "post"), $param["action"], $param["options"]);
Dries's avatar
   
Dries committed
955
956
957
}

function node_add($type) {
958
  global $user, $edit;
Dries's avatar
   
Dries committed
959

Dries's avatar
   
Dries committed
960
  /*
Dries's avatar
   
Dries committed
961
  ** If a node type has been specified, validate it existence.  If no
Dries's avatar
   
Dries committed
962
963
964
  ** (valid) node type has been provied, display a node type overview.
  */

Dries's avatar
   
Dries committed
965
  if ($type && node_access("create", $type)) {
966
    // Initialize settings
967
968
969
970
971
    $node = array("uid" => $user->uid, "name" => $user->name, "type" => $type, "status" => 1, "promote" => !module_exist("queue"), "moderate" => module_exist("queue"), "comment" => module_exist("queue") ? 2 : 0);
    foreach (array("title", "teaser", "body") as $field) {
      if ($edit[$field]) {
        $node[$field] = check_input($edit[$field]);
      }
Dries's avatar
   
Dries committed
972
    }
973
    $output = node_form($node);
Dries's avatar
   
Dries committed
974
975
  }
  else {
Dries's avatar
   
Dries committed
976

Dries's avatar
   
Dries committed
977
978
979
    /*
    ** Compile a list with the different node types and their explanation:
    */
Dries's avatar
   
Dries committed
980

Dries's avatar
   
Dries committed
981
    foreach (module_list() as $name) {
Dries's avatar
   
Dries committed
982
      if (module_hook($name, "node") && node_access("create", $name)) {
Dries's avatar
   
Dries committed
983
        $output .= "<li>";
Kjartan's avatar
Kjartan committed
984
        $output .= " ". lm(module_invoke($name, "node", "name"), array("mod" => "node", "op" => "add", "type" => $name), "", array("title" => t("Add a new %s.", array("%s" => module_invoke($name, "node", "name")))));
Dries's avatar
   
Dries committed
985
986
        $output .= " <div style=\"margin-left: 20px;\">". module_invoke($name, "node", "description") ."</div>";
        $output .= "</li>";
Dries's avatar
   
Dries committed
987
      }
Dries's avatar
   
Dries committed
988
989
    }

Dries's avatar
   
Dries committed
990
991
    $output = t("Choose the appropriate item from the list:") ."<ul>$output</ul>";

Dries's avatar
   
Dries committed
992
993
994
995
996
997
998
999
1000
  }

  return $output;
}

function node_edit($id) {
  global $user;

  $node = node_load(array("nid" => $id));