node.module 37.4 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
31
32
33
34
35
36
37
38
// 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)) {
    $number = comment_num_all($node->nid);
    $name = strip_tags(format_name($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))));
  }
  return theme_invoke("theme_item_list", $items, $title);

}

Dries's avatar
   
Dries committed
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
function node_teaser($body) {

  $size = 400;

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

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

  /*
  ** If we have a long body, try not to split paragraphs:
  */

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

  /*
  ** If we have a long body, try not to split sentences:
  */

  return substr($body, 0, strpos($body, ". ", $size) + 1);

}

function node_invoke($node, $name, $arg = 0) {
  if (is_array($node)) {
Kjartan's avatar
Kjartan committed
69
    $function = $node["type"] ."_$name";
Dries's avatar
   
Dries committed
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
  }
  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) {

123
  $fields = array("nid", "uid", "type", "title", "teaser", "body", "revisions", "score", "status", "comment", "promote", "static", "moderate", "created", "changed", "users", "votes");
Dries's avatar
   
Dries committed
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

  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
166
    // Set some required fields:
167
168
169
    if (!$node->created) {
      $node->created = time();
    }
Dries's avatar
   
Dries committed
170
    $node->changed = time();
Dries's avatar
   
Dries committed
171
    $node->nid = db_next_id("node");
Dries's avatar
   
Dries committed
172

Dries's avatar
   
Dries committed
173
    // Prepare the query:
Dries's avatar
   
Dries committed
174
175
176
177
178
179
180
    foreach ($node as $key => $value) {
      if (in_array($key, $fields)) {
        $k[] = check_query($key);
        $v[] = "'". check_query($value) ."'";
      }
    }

Dries's avatar
   
Dries committed
181
    // Insert the node into the database:
Dries's avatar
   
Dries committed
182
183
    db_query("INSERT INTO node (". implode(", ", $k) .") VALUES (". implode(", ", $v) .")");

Dries's avatar
   
Dries committed
184
    // Call the node specific callback (if any):
Dries's avatar
   
Dries committed
185
186
187
188
189
190
191
192
    module_invoke($node->type, "insert", $node);
  }
  else {

    /*
    ** Update an existing node:
    */

Dries's avatar
   
Dries committed
193
    // Set some required fields:
Dries's avatar
   
Dries committed
194
195
    $node->changed = time();

Dries's avatar
   
Dries committed
196
    // Prepare the query:
Dries's avatar
   
Dries committed
197
198
199
200
201
202
    foreach ($node as $key => $value) {
      if (in_array($key, $fields)) {
        $q[] = check_query($key) ." = '". check_query($value) ."'";
      }
    }

Dries's avatar
   
Dries committed
203
    // Update the node in the database:
Dries's avatar
   
Dries committed
204
205
    db_query("UPDATE node SET ". implode(", ", $q) ." WHERE nid = '$node->nid'");

Dries's avatar
   
Dries committed
206
    // Call the node specific callback (if any):
Dries's avatar
   
Dries committed
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
    module_invoke($node->type, "update", $node);

  }

  /*
  ** Return the node ID:
  */

  return $node->nid;

}

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

Dries's avatar
   
Dries committed
222
  $node = array2object($node);
Dries's avatar
   
Dries committed
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241

  /*
  ** 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
242
243
function node_access($op, $node = 0) {

Dries's avatar
   
Dries committed
244
245
  if (user_access("administer nodes")) {
    return 1;
Dries's avatar
   
Dries committed
246
  }
Dries's avatar
   
Dries committed
247
  else {
Dries's avatar
   
Dries committed
248

Dries's avatar
   
Dries committed
249
250
251
    /*
    ** Convert the node to an object if necessary:
    */
Dries's avatar
   
Dries committed
252

Dries's avatar
   
Dries committed
253
    $node = array2object($node);
Dries's avatar
   
Dries committed
254

Dries's avatar
   
Dries committed
255
256
257
258
    /*
    ** Construct a function:
    */

Dries's avatar
   
Dries committed
259
260
261
262
263
264
265
266
    if ($node->type) {
      $type = $node->type;
    }
    else {
      $type = $node;
    }

    $function = $type ."_access";
Dries's avatar
   
Dries committed
267
268
269
270
271
272
273

    if (function_exists($function)) {
      return $function($op, $node);
    }
    else {
      return 0;
    }
Dries's avatar
   
Dries committed
274
275
276
  }
}

Dries's avatar
   
Dries committed
277
function node_perm() {
Dries's avatar
   
Dries committed
278
  return array("administer nodes", "access content", "post content");
Dries's avatar
   
Dries committed
279
280
}

Dries's avatar
   
Dries committed
281
function node_search($keys) {
Dries's avatar
   
Dries committed
282
  global $PHP_SELF;
Dries's avatar
   
Dries committed
283

Kjartan's avatar
Kjartan committed
284
285
286
287
288
289
290
291
292
293
294
295
  // 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
296
  // table to the data that the search_index table has in it, and the the
Kjartan's avatar
Kjartan committed
297
298
  // do_search functino will rank it.
  //
Dries's avatar
   
Dries committed
299
  // The select must always provide the following fields - lno, title,
Kjartan's avatar
Kjartan committed
300
301
  // created, uid, name, count
  //
Kjartan's avatar
Kjartan committed
302
  $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
303

Dries's avatar
   
Dries committed
304
305
306
  return $find;
}

Dries's avatar
   
Dries committed
307
function node_conf_options() {
Dries's avatar
   
Dries committed
308
  $output .= form_select(t("Default number of nodes to display"), "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 nodes to display on the main page."));
Dries's avatar
   
Dries committed
309
310
311
  return $output;
}

Dries's avatar
CHANGES    
Dries committed
312
function node_conf_filters() {
Dries's avatar
   
Dries committed
313
  $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."));
314
  $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
315
  $output .= "<hr />";
Dries's avatar
   
Dries committed
316
  $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
317
  $output .= "<hr />";
Dries's avatar
CHANGES    
Dries committed
318
319
320
321
322
323
324
325
326
  return $output;
}

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

function node_filter_link($text) {
327
  $pat = '\[{2}([^\|]+)(\|([^\|]+)?)?\]{2}';                   // [link|description]
328
  $dst = str_replace('%5C1', '\\1', format_tag('\\1', '\\3')); // [link|description]
329
  return ereg_replace($pat, $dst, $text);
Dries's avatar
   
Dries committed
330
331
}

Dries's avatar
   
Dries committed
332
function node_filter_line($text) {
Dries's avatar
   
Dries committed
333

Dries's avatar
   
Dries committed
334
  /*
Dries's avatar
   
Dries committed
335
336
337
338
339
340
341
  ** 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.
  */

  /*
  ** If HTML mark-up is being used, strip regular line breaks:
Dries's avatar
   
Dries committed
342
343
344
  */

  if (strstr($text, "<br />") || strstr($text, "<p>")) {
Dries's avatar
   
Dries committed
345
    $text = ereg_replace("[\r\n]", "", $text);
Dries's avatar
   
Dries committed
346
347
348
349
350
351
  }

  /*
  ** Replace '<br>', '<br />', '<p>' and '<p />' by '\n':
  */

Kjartan's avatar
Kjartan committed
352
  $text = eregi_replace("<br />", "\n", $text);
Dries's avatar
   
Dries committed
353
354
  $text = eregi_replace("<br />", "\n", $text);
  $text = eregi_replace("<p>", "\n", $text);
Dries's avatar
   
Dries committed
355
  $text = eregi_replace("<p />", "\n", $text);
Dries's avatar
   
Dries committed
356
357

  /*
Dries's avatar
   
Dries committed
358
  ** Replace '\r\n' by '\n':
Dries's avatar
   
Dries committed
359
360
361
362
363
364
365
366
367
368
369
  */

  $text = ereg_replace("\r\n", "\n", $text);

  /*
  ** Replace some new line charachters:
  */

  while (strpos($text, "\n\n\n")) {
    $text = ereg_replace("\n\n\n", "\n\n", $text);
  }
Dries's avatar
   
Dries committed
370

Dries's avatar
   
Dries committed
371
372
373
374
375
376
377
  /*
  ** 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
378
379
380
  return trim($text);
}

Dries's avatar
   
Dries committed
381
function node_comment_mode($nid) {
Dries's avatar
   
Dries committed
382
383
384
385
386
  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
387
388
}

Dries's avatar
CHANGES    
Dries committed
389
function node_filter($text) {
Dries's avatar
   
Dries committed
390
391
392
393
394
  $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
395
396
  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
397
  return node_filter_line($text);
Dries's avatar
CHANGES    
Dries committed
398
399
}

400
function node_link($type, $node = 0, $main = 0) {
Dries's avatar
   
Dries committed
401

Dries's avatar
   
Dries committed
402
  if ($type == "admin" && user_access("administer nodes")) {
Dries's avatar
   
Dries committed
403
    $links[] = la(t("content management"), array("mod" => "node"));
Dries's avatar
   
Dries committed
404
405
  }

Dries's avatar
   
Dries committed
406
  if ($type == "page" && user_access("post content")) {
Kjartan's avatar
Kjartan committed
407
    $links[] = lm(t("submit"), array("mod" => "node", "op" => "add"), "", array("title" => t("Submit or suggest new content.")));
Dries's avatar
   
Dries committed
408
409
  }

Dries's avatar
   
Dries committed
410
  if ($type == "node") {
Kjartan's avatar
Kjartan committed
411
412
413
    if ($node->links) {
      $links = $node->links;
    }
Dries's avatar
   
Dries committed
414

415
    if ($main == 1 && $node->teaser && $node->teaser != $node->body) {
Kjartan's avatar
Kjartan committed
416
      $links[] = l(t("read more"), array("id" => $node->nid), "node", "", array("title" => t("Read the rest of this posting.")));
Dries's avatar
   
Dries committed
417
    }
Dries's avatar
   
Dries committed
418
419

    if (user_access("administer nodes")) {
Kjartan's avatar
Kjartan committed
420
       $links[] = la(t("administer"), array("mod" => "node", "op" => "edit", "id" => $node->nid), "", array("title" => t("Administer this node.")));
Dries's avatar
   
Dries committed
421
    }
Dries's avatar
   
Dries committed
422
423
424
425
426
  }

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

Dries's avatar
   
Dries committed
427
function node_admin_settings($edit = array()) {
Dries's avatar
   
Dries committed
428
429
  global $op;

Dries's avatar
   
Dries committed
430
431
432
433
  if ($op == t("Save configuration")) {
    /*
    ** Save the configuration options:
    */
Dries's avatar
Dries committed
434

Dries's avatar
   
Dries committed
435
436
437
    foreach ($edit as $name => $value) {
      variable_set($name, $value);
    }
Dries's avatar
 
Dries committed
438
439
  }

Dries's avatar
   
Dries committed
440
441
442
443
  if ($op == t("Reset to defaults")) {
    /*
    ** Reset the configuration options to their default value:
    */
Dries's avatar
 
Dries committed
444

445
    foreach ($edit as $name => $value) {
Dries's avatar
   
Dries committed
446
447
      variable_del($name);
    }
Dries's avatar
   
Dries committed
448
  }
Dries's avatar
Dries committed
449

Dries's avatar
   
Dries committed
450
  $output .= "<h3>". t("Global node settings") ."</h3>";
Dries's avatar
   
Dries committed
451
  $output .= node_conf_options();
Dries's avatar
   
Dries committed
452
453
454

  foreach (module_list() as $name) {
    if (module_hook($name, "conf_options") && module_hook($name, "node")) {
Dries's avatar
   
Dries committed
455
      $output .= "<h3>". t("%module settings", array("%module" => ucfirst(module_invoke($name, "node", "name")))) ."</h3>";
Dries's avatar
   
Dries committed
456
457
458
459
      $output .= module_invoke($name, "conf_options");
    }
  }

Dries's avatar
   
Dries committed
460
461
  $output .= form_submit(t("Save configuration"));
  $output .= form_submit(t("Reset to defaults"));
Dries's avatar
Dries committed
462

Dries's avatar
   
Dries committed
463
  return form($output);
Dries's avatar
   
Dries committed
464
465
}

Dries's avatar
   
Dries committed
466
function node_admin_edit($node) {
Dries's avatar
   
Dries committed
467

Dries's avatar
   
Dries committed
468
  if (is_numeric($node)) {
Dries's avatar
   
Dries committed
469
    $node = node_load(array("nid" => $node));
Dries's avatar
   
Dries committed
470
  }
Dries's avatar
   
Dries committed
471

Dries's avatar
   
Dries committed
472
473
474
  /*
  ** Edit node:
  */
Dries's avatar
   
Dries committed
475

Dries's avatar
   
Dries committed
476
  $output .= "<h3>". t("Edit %module", array("%module" => module_invoke($node->type, "node", "name"))) ."</h3>";
Dries's avatar
   
Dries committed
477

Dries's avatar
   
Dries committed
478
  $output .= node_form($node);
Dries's avatar
   
Dries committed
479

Dries's avatar
   
Dries committed
480
481
482
483
484
485
486
  /*
  ** Edit revisions:
  */

  if ($node->revisions) {
    $output .= "<h3>". t("Edit revisions") ."</h3>";
    $output .= "<table border=\"1\" cellpadding=\"2\" cellspacing=\"2\">";
Dries's avatar
   
Dries committed
487
    $output .= " <tr><th>". t("older revisions") ."</th><th colspan=\"3\">". t("operations") ."</th></tr>";
Dries's avatar
   
Dries committed
488
    foreach ($node->revisions as $key => $revision) {
489
      $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
490
491
492
493
    }
    $output .= "</table>";
  }

Dries's avatar
   
Dries committed
494
  /*
Dries's avatar
   
Dries committed
495
  ** Display the node form extensions:
Dries's avatar
   
Dries committed
496
  */
Dries's avatar
   
Dries committed
497

Dries's avatar
   
Dries committed
498
499
  foreach (module_list() as $name) {
    $output .= module_invoke($name, "node_link", $node);
Dries's avatar
Dries committed
500
501
  }

Dries's avatar
   
Dries committed
502
  return $output;
Dries's avatar
   
Dries committed
503
504
505

}

Dries's avatar
   
Dries committed
506
507
function node_admin_nodes() {
  global $query;
Dries's avatar
   
Dries committed
508

Dries's avatar
   
Dries committed
509
  $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
510

Dries's avatar
   
Dries committed
511
  $result = db_query_pager("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
512

Dries's avatar
   
Dries committed
513
  foreach ($queries as $key => $value) {
Dries's avatar
   
Dries committed
514
    $links[] = la($value[1], array("mod" => "node", "op" => "nodes", "query" => $key));
Dries's avatar
Dries committed
515
516
  }

Dries's avatar
   
Dries committed
517
  $output .= "<small>". implode(" :: ", $links) ."</small><hr />";
Dries's avatar
   
Dries committed
518

Dries's avatar
   
Dries committed
519
  $output .= "<table border=\"1\" cellpadding=\"2\" cellspacing=\"2\">\n";
Dries's avatar
   
Dries committed
520
  $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
521
  while ($node = db_fetch_object($result)) {
Kjartan's avatar
Kjartan committed
522
    $output .= "<tr><td>". l(check_output($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
523
  }
Dries's avatar
   
Dries committed
524
525
  $output .= "<tr><td colspan=\"6\">". pager_display(NULL, 50, 0, "admin") ."</td></tr></table>";

Dries's avatar
   
Dries committed
526

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

Dries's avatar
   
Dries committed
530
531
532
533
534
535
536
537
538
539
540
541
/*
** 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
542
543
544
function node_revision_create($node) {
  global $user;

Dries's avatar
   
Dries committed
545
546
547
548
549
  /*
  ** '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
550
  if ($node->nid && $node->revision) {
Dries's avatar
   
Dries committed
551
552
553
554
    $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
555
556
557
558
559
  }

  return $node;
}

Dries's avatar
   
Dries committed
560
561
562
/*
** Roll-back to the revision with the specified revision number.
*/
Dries's avatar
   
Dries committed
563

Dries's avatar
   
Dries committed
564
565
function node_revision_rollback($node, $revision) {
  global $user;
Dries's avatar
   
Dries committed
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600

  /*
  ** 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
601
  watchdog("special", "$node->type: rollbacked to revision #$revision of '$node->title'");
Dries's avatar
   
Dries committed
602
603
}

Dries's avatar
   
Dries committed
604
605
606
607
608
/*
** Delete the revision with specified revision number.
*/

function node_revision_delete($node, $revision) {
Dries's avatar
   
Dries committed
609
610

  unset($node->revisions[$revision]);
Dries's avatar
   
Dries committed
611

Dries's avatar
   
Dries committed
612
  node_save($node, array("nid", "revisions"));
Dries's avatar
   
Dries committed
613

Dries's avatar
   
Dries committed
614
  watchdog("special", "$node->type: removed revision #$revision of '$node->title'");
Dries's avatar
   
Dries committed
615
616
}

Dries's avatar
   
Dries committed
617
618
619
620
621
622
623
624
625
626
627
/*
** 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
628
629
}

Dries's avatar
 
Dries committed
630
function node_admin() {
Dries's avatar
   
Dries committed
631
  global $op, $id, $revision, $edit;
Dries's avatar
   
Dries committed
632

Dries's avatar
   
Dries committed
633
  if (user_access("administer nodes")) {
Dries's avatar
   
Dries committed
634

Dries's avatar
   
Dries committed
635
636
637
    /*
    ** Compile a list of the administrative links:
    */
Dries's avatar
Dries committed
638

Dries's avatar
   
Dries committed
639
640
641
642
    $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
643

Dries's avatar
   
Dries committed
644
    print "<small>". implode(" &middot; ", $links) ."</small><hr />";
Dries's avatar
   
Dries committed
645
646
647
648
649
650

    switch ($op) {
      case "help":
        print node_help();
        break;
      case "search":
Dries's avatar
   
Dries committed
651
        print search_type("node", drupal_url(array("mod" => "node", "op" => "search"), "admin"));
Dries's avatar
   
Dries committed
652
        break;
Dries's avatar
   
Dries committed
653
654
655
656
      case t("Save configuration"):
      case t("Reset to defaults"):
      case "settings":
        print node_admin_settings($edit);
Dries's avatar
   
Dries committed
657
658
        break;
      case "edit":
Dries's avatar
   
Dries committed
659
        print node_admin_edit($id);
Dries's avatar
   
Dries committed
660
        break;
Dries's avatar
   
Dries committed
661
662
663
      case "delete":
        print node_delete(array("nid" => $id));
        break;
Dries's avatar
   
Dries committed
664
      case "rollback revision":
Dries's avatar
   
Dries committed
665
666
        print node_revision_rollback(node_load(array("nid" => $id)), $revision);
        print node_admin_edit($id);
Dries's avatar
   
Dries committed
667
668
        break;
      case "delete revision":
Dries's avatar
   
Dries committed
669
670
        print node_revision_delete(node_load(array("nid" => $id)), $revision);
        print node_admin_edit($id);
Dries's avatar
   
Dries committed
671
        break;
Dries's avatar
   
Dries committed
672
      case t("Preview"):
673
        $edit = node_validate($edit, $error);
Dries's avatar
   
Dries committed
674
        print node_preview($edit);
Dries's avatar
   
Dries committed
675
        break;
Dries's avatar
   
Dries committed
676
      case t("Submit"):
Dries's avatar
   
Dries committed
677
678
679
        print node_submit($edit);
        break;
      case t("Delete"):
Dries's avatar
   
Dries committed
680
        print node_delete($edit);
Dries's avatar
   
Dries committed
681
        break;
Dries's avatar
   
Dries committed
682
      default:
Dries's avatar
   
Dries committed
683
        print node_admin_nodes();
Dries's avatar
   
Dries committed
684
685
686
687
    }
  }
  else {
    print message_access();
Dries's avatar
 
Dries committed
688
689
690
  }
}

Dries's avatar
   
Dries committed
691
function node_block($op = "list", $delta = 0) {
Dries's avatar
   
Dries committed
692
  global $theme;
Dries's avatar
   
Dries committed
693
694
695
696
697
698
699
  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
700

Dries's avatar
   
Dries committed
701
702
    return $block;
  }
Dries's avatar
   
Dries committed
703
704
}

Kjartan's avatar
Kjartan committed
705
706
707
708
709
710
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
711

Kjartan's avatar
Kjartan committed
712
713
714
  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
715

Kjartan's avatar
Kjartan committed
716
717
718
  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
719
    $items .= format_rss_item($item->title, $link, $item->teaser);
Dries's avatar
   
Dries committed
720
721
  }

Kjartan's avatar
Kjartan committed
722
  $output .= "<?xml version=\"1.0\" ". t("encoding=\"ISO-8859-1\""). "?>\n";
Dries's avatar
   
Dries committed
723
  // $output .= "<!DOCTYPE rss [<!ENTITY % HTMLlat1 PUBLIC \"-//W3C//ENTITIES Latin 1 for XHTML//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml-lat1.ent\">\n";
Kjartan's avatar
Kjartan committed
724
725
726
727
728
729
730
  if (!$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
731
732
  $output .= "</rss>\n";

Dries's avatar
   
Dries committed
733
  header("Content-Type: text/xml");
Dries's avatar
   
Dries committed
734
735
736
  print $output;
}

737
function node_validate($node, &$error) {
Dries's avatar
   
Dries committed
738
739
740
741
742
743
744

  global $user;

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

Dries's avatar
   
Dries committed
745
  $node = array2object($node);
Dries's avatar
   
Dries committed
746
747
748
749
750

  /*
  ** Validate the title field:
  */

Dries's avatar
   
Dries committed
751
  if (isset($node->title) && !$node->title) {
Dries's avatar
   
Dries committed
752
    $error["title"] = theme_invoke("theme_error", t("You have to specify a valid title."));
Dries's avatar
   
Dries committed
753
754
755
756
757
758
759
760
  }

  if (user_access("administer nodes")) {

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

Dries's avatar
   
Dries committed
761
762
    if (!$node->created) {
      $node->created = time();
Dries's avatar
   
Dries committed
763
764
    }

Dries's avatar
   
Dries committed
765
766
    if (!$node->date) {
      $node->date = date("M j, Y g:i a", $node->created);
Dries's avatar
   
Dries committed
767
768
769
770
771
772
    }

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

Dries's avatar
   
Dries committed
773
774
775
776
777
778
779
780
781
    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
782
      $node->uid = $account->uid;
Dries's avatar
   
Dries committed
783
784
    }
    else {
Dries's avatar
   
Dries committed
785
      $error["name"] = theme_invoke("theme_error", t("The name '%u' does not exist.", array ("%u" => $node->name)));
Dries's avatar
   
Dries committed
786
787
788
789
790
791
    }

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

Dries's avatar
   
Dries committed
792
793
    if (strtotime($node->date) > 1000) {
      $node->created = strtotime($node->date);
Dries's avatar
   
Dries committed
794
795
    }
    else {
Dries's avatar
   
Dries committed
796
      $error["date"] = theme_invoke("theme_error", t("You have to specifiy a valid date."));
Dries's avatar
   
Dries committed
797
    }
Dries's avatar
   
Dries committed
798

Dries's avatar
   
Dries committed
799
800
  }

Dries's avatar
   
Dries committed
801
802
803
804
805
806
807
808
809
  /*
  ** Do node type specific validation checks.
  */

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

Dries's avatar
   
Dries committed
810
  return $node;
Dries's avatar
   
Dries committed
811
812
}

Dries's avatar
   
Dries committed
813

Dries's avatar
   
Dries committed
814
function node_form($edit, $error = NULL) {
Dries's avatar
   
Dries committed
815

Dries's avatar
   
Dries committed
816
817
818
819
820
821
822
  /*
  ** 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
823
824
825
826
  /*
  ** Validate the node:
  */

Dries's avatar
   
Dries committed
827
  if (!$error) {
828
829
    /* Only validate if we don't already know the errors. */
    $edit = node_validate($edit, $error);
Dries's avatar
   
Dries committed
830
  }
Dries's avatar
   
Dries committed
831

Dries's avatar
   
Dries committed
832
833
834
835
836
837
838
839
  /*
  ** Generate a teaser when necessary:
  */

  if ($edit->body && !$edit->teaser) {
    $edit->teaser = node_teaser($edit->body);
  }

Dries's avatar
   
Dries committed
840
841
842
843
844
845
  /*
  ** Get the node specific bits:
  */

  $function = $edit->type ."_form";
  if (function_exists($function)) {
Kjartan's avatar
Kjartan committed
846
    $form .= $function($edit, $help, $error, $param);
Dries's avatar
   
Dries committed
847
848
849
850
851
852
853
854
855
856
  }

  /*
  ** Add the help text:
  */

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

Dries's avatar
   
Dries committed
857
858
859
860
  $output .= "<table border=\"0\" cellpadding=\"2\" cellspacing=\"2\">";
  $output .= " <tr>";
  $output .= "  <td valign=\"top\">";

Dries's avatar
   
Dries committed
861
862
863
864
865
866
867
  /*
  ** Add the default fields:
  */

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

  /*
Dries's avatar
   
Dries committed
868
  ** Add the node specific fields:
Dries's avatar
   
Dries committed
869
870
  */

Dries's avatar
   
Dries committed
871
  $output .= $form;
Dries's avatar
   
Dries committed
872
873
874
875
876
877
878
879
880

  /*
  ** Add the hidden fields:
  */

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

Dries's avatar
   
Dries committed
881
882
883
884
885
  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
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
    $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
905
  if ($edit->nid && node_access("delete", $edit)) {
Dries's avatar
   
Dries committed
906
907
908
909
910
911
912
913
    $output .= form_submit(t("Delete"));
  }

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

  if (user_access("administer nodes")) {
Dries's avatar
   
Dries committed
914
    $output .= "</td><td align=\"left\" valign=\"top\">";
915
    $output .= form_textfield(t("Authored by"), "name", $edit->name, 20, 60, $error["name"]);
Dries's avatar
   
Dries committed
916
917
    $output .= form_textfield(t("Authored on"), "date", $edit->date, 20, 25, $error["date"]);
    $output .= "<br />";
Dries's avatar
   
Dries committed
918
    $output .= form_select(t("Set public/published"), "status", $edit->status, array(t("Disabled"), t("Enabled")));
Kjartan's avatar
Kjartan committed
919
920
    // TODO: move this to the queue.module
    if (module_exist("queue")) {
Dries's avatar
   
Dries committed
921
      $output .= form_select(t("Queue for moderation"), "moderate", $edit->moderate, array(t("Disabled"), t("Enabled")));
Kjartan's avatar
Kjartan committed
922
    }
Dries's avatar
   
Dries committed
923
924
    $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
925
926
    // TODO: move this to the comment.module
    if (module_exist("comment")) {
Dries's avatar
   
Dries committed
927
      $output .= form_select(t("Allow users comments"), "comment", $edit->comment, array(t("Disabled"), t("Read only"), t("Read-write")));
Kjartan's avatar
Kjartan committed
928
    }
Dries's avatar
   
Dries committed
929
    $output .= form_select(t("Create new revision"), "revision", $edit->revision, array(t("Disabled"), t("Enabled")));
Dries's avatar
   
Dries committed
930
931
  }

Dries's avatar
   
Dries committed
932
933
934
935
  $output .= "  </td>";
  $output .= " </tr>";
  $output .= "</table>";

Kjartan's avatar
Kjartan committed
936
  return form($output, ($param["method"] ? $param["method"] : "post"), $param["action"], $param["options"]);
Dries's avatar
   
Dries committed
937
938
939
}

function node_add($type) {
940
  global $user, $edit;
Dries's avatar
   
Dries committed
941

Kjartan's avatar
Kjartan committed
942
943
944
945
  if (!user_access("post content")) {
    return message_access();
  }

Dries's avatar
   
Dries committed
946
  /*
Dries's avatar
   
Dries committed
947
  ** If a node type has been specified, validate it existence.  If no
Dries's avatar
   
Dries committed
948
949
950
  ** (valid) node type has been provied, display a node type overview.
  */

Dries's avatar
   
Dries committed
951
  if ($type && node_access("create", $type)) {
952
    // Initialize settings
953
954
955
956
957
    $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
958
    }
959
    $output = node_form($node);
Dries's avatar
   
Dries committed
960
961
  }
  else {
Dries's avatar
   
Dries committed
962

Dries's avatar
   
Dries committed
963
964
965
    /*
    ** Compile a list with the different node types and their explanation:
    */
Dries's avatar
   
Dries committed
966

Dries's avatar
   
Dries committed
967
    foreach (module_list() as $name) {
Dries's avatar
   
Dries committed
968
969
      if (module_hook($name, "node") && node_access("create", array("type" => $name))) {
        $output .= "<li>";
Kjartan's avatar
Kjartan committed
970
        $output .= " ". lm(module_invoke($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
971
972
        $output .= " <div style=\"margin-left: 20px;\">". module_invoke($name, "node", "description") ."</div>";
        $output .= "</li>";
Dries's avatar
   
Dries committed
973
      }
Dries's avatar
   
Dries committed
974
975
    }

Dries's avatar
   
Dries committed
976
977
    $output = t("Choose the appropriate item from the list:") ."<ul>$output</ul>";

Dries's avatar
   
Dries committed
978
979
980
981
982
983
984
985
  }

  return $output;
}

function node_edit($id) {
  global $user;

Kjartan's avatar
Kjartan committed
986
987
988
989
  if (!user_access("post content")) {
    return message_access();
  }

Dries's avatar
   
Dries committed
990
991
  $node = node_load(array("nid" => $id));

Dries's avatar
   
Dries committed
992
993
994
995
996
997
998
999
  if (node_access("update", $node)) {
    $output = node_form($node);
  }
  else {
    $output = message_access();
  }

  return $output;
Dries's avatar
   
Dries committed
1000
}