node.module 38.8 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
  ** If a valid delimiter has been specified, use it to
Dries's avatar
 
Dries committed
62 63
  ** chop of the teaser.  The delimiter can be outside
  ** the allowed range but no more than a factor two.
Dries's avatar
 
Dries committed
64 65 66
  */

  $delimiter = strpos($body, "---");
Dries's avatar
 
Dries committed
67
  if ($delimiter > 0 && $delimiter < $size * 2) {
Dries's avatar
 
Dries committed
68 69 70 71 72 73 74
    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
75 76
  */

Dries's avatar
 
Dries committed
77
  if ($length = strpos($body, "<br />", $size)) {
Dries's avatar
 
Dries committed
78
    return substr($body, 0, $length);
Dries's avatar
 
Dries committed
79 80 81
  }

  if ($length = strpos($body, "<br>", $size)) {
Dries's avatar
 
Dries committed
82
    return substr($body, 0, $length);
Dries's avatar
 
Dries committed
83 84 85
  }

  if ($length = strpos($body, "</p>", $size)) {
Dries's avatar
 
Dries committed
86 87 88 89 90
    return substr($body, 0, $length);
  }

  if ($length = strpos($body, "\n", $size)) {
    return substr($body, 0, $length);
Dries's avatar
 
Dries committed
91 92
  }

Dries's avatar
 
Dries committed
93
  /*
Dries's avatar
 
Dries committed
94
  ** When even the first paragraph is too long, try to
Dries's avatar
 
Dries committed
95
  ** split at the end of the next sentence.
Dries's avatar
 
Dries committed
96 97
  */

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

Dries's avatar
 
Dries committed
114
  return substr($body, 0, $size);
Dries's avatar
 
Dries committed
115 116 117 118
}

function node_invoke($node, $name, $arg = 0) {
  if (is_array($node)) {
Kjartan's avatar
Kjartan committed
119
    $function = $node["type"] ."_$name";
Dries's avatar
 
Dries committed
120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172
  }
  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) {

173
  $fields = array("nid", "uid", "type", "title", "teaser", "body", "revisions", "score", "status", "comment", "promote", "static", "moderate", "created", "changed", "users", "votes");
Dries's avatar
 
Dries committed
174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215

  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
216
    // Set some required fields:
217 218 219
    if (!$node->created) {
      $node->created = time();
    }
Dries's avatar
 
Dries committed
220
    $node->changed = time();
Dries's avatar
 
Dries committed
221
    $node->nid = db_next_id("node");
Dries's avatar
 
Dries committed
222

Dries's avatar
 
Dries committed
223
    // Prepare the query:
Dries's avatar
 
Dries committed
224 225 226 227 228 229 230
    foreach ($node as $key => $value) {
      if (in_array($key, $fields)) {
        $k[] = check_query($key);
        $v[] = "'". check_query($value) ."'";
      }
    }

Dries's avatar
 
Dries committed
231
    // Insert the node into the database:
Dries's avatar
 
Dries committed
232 233
    db_query("INSERT INTO node (". implode(", ", $k) .") VALUES (". implode(", ", $v) .")");

Dries's avatar
 
Dries committed
234
    // Call the node specific callback (if any):
Dries's avatar
 
Dries committed
235 236 237 238 239 240 241 242
    module_invoke($node->type, "insert", $node);
  }
  else {

    /*
    ** Update an existing node:
    */

Dries's avatar
 
Dries committed
243
    // Set some required fields:
Dries's avatar
 
Dries committed
244 245
    $node->changed = time();

Dries's avatar
 
Dries committed
246
    // Prepare the query:
Dries's avatar
 
Dries committed
247 248 249 250 251 252
    foreach ($node as $key => $value) {
      if (in_array($key, $fields)) {
        $q[] = check_query($key) ." = '". check_query($value) ."'";
      }
    }

Dries's avatar
 
Dries committed
253
    // Update the node in the database:
Dries's avatar
 
Dries committed
254 255
    db_query("UPDATE node SET ". implode(", ", $q) ." WHERE nid = '$node->nid'");

Dries's avatar
 
Dries committed
256
    // Call the node specific callback (if any):
Dries's avatar
 
Dries committed
257 258 259 260
    module_invoke($node->type, "update", $node);

  }

Dries's avatar
 
Dries committed
261 262 263 264 265 266 267
  /*
  ** Clear the cache so an anonymous poster can see the node being added
  ** or updated.
  */

  cache_clear_all();

Dries's avatar
 
Dries committed
268 269 270 271 272 273 274 275 276 277 278
  /*
  ** Return the node ID:
  */

  return $node->nid;

}

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

Dries's avatar
 
Dries committed
279
  $node = array2object($node);
Dries's avatar
 
Dries committed
280

Dries's avatar
 
Dries committed
281 282 283 284 285 286 287
  /*
  ** Remove the delimiter (if any) that seperates the teaser from the
  ** body.
  */

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

Dries's avatar
 
Dries committed
288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305
  /*
  ** 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
306 307
function node_access($op, $node = 0) {

Dries's avatar
 
Dries committed
308 309
  if (user_access("administer nodes")) {
    return 1;
Dries's avatar
 
Dries committed
310 311
  }

Dries's avatar
 
Dries committed
312 313 314
  /*
  ** Convert the node to an object if necessary:
  */
Dries's avatar
 
Dries committed
315

Dries's avatar
 
Dries committed
316
  $node = array2object($node);
Dries's avatar
 
Dries committed
317

Dries's avatar
 
Dries committed
318 319 320
  /*
  ** Construct a function:
  */
Dries's avatar
 
Dries committed
321

Dries's avatar
 
Dries committed
322 323 324 325 326 327
  if ($node->type) {
    $type = $node->type;
  }
  else {
    $type = $node;
  }
Dries's avatar
 
Dries committed
328

Dries's avatar
 
Dries committed
329
  $function = $type ."_access";
Dries's avatar
 
Dries committed
330

Dries's avatar
 
Dries committed
331 332 333 334 335
  if (function_exists($function)) {
    return $function($op, $node);
  }
  else {
    return 0;
Dries's avatar
 
Dries committed
336 337 338
  }
}

Dries's avatar
 
Dries committed
339
function node_perm() {
Dries's avatar
 
Dries committed
340
  return array("administer nodes", "access content");
Dries's avatar
 
Dries committed
341 342
}

Dries's avatar
 
Dries committed
343
function node_search($keys) {
Dries's avatar
 
Dries committed
344
  global $PHP_SELF;
Dries's avatar
 
Dries committed
345

Kjartan's avatar
Kjartan committed
346 347 348 349 350 351 352 353 354 355 356 357
  // 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
358
  // table to the data that the search_index table has in it, and the the
Kjartan's avatar
Kjartan committed
359 360
  // do_search functino will rank it.
  //
Dries's avatar
 
Dries committed
361
  // The select must always provide the following fields - lno, title,
Kjartan's avatar
Kjartan committed
362 363
  // created, uid, name, count
  //
Kjartan's avatar
Kjartan committed
364
  $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
365

Dries's avatar
 
Dries committed
366 367 368
  return $find;
}

Dries's avatar
 
Dries committed
369
function node_conf_options() {
Dries's avatar
 
Dries committed
370 371
  $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
372 373 374
  return $output;
}

Dries's avatar
CHANGES  
Dries committed
375
function node_conf_filters() {
Dries's avatar
 
Dries committed
376
  $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."));
377
  $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
378
  $output .= "<hr />";
Dries's avatar
 
Dries committed
379
  $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
380
  $output .= "<hr />";
Dries's avatar
CHANGES  
Dries committed
381 382 383 384 385 386 387 388 389
  return $output;
}

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

function node_filter_link($text) {
390
  $pat = '\[{2}([^\|]+)(\|([^\|]+)?)?\]{2}';                   // [link|description]
391
  $dst = str_replace('%5C1', '\\1', format_tag('\\1', '\\3')); // [link|description]
392
  return ereg_replace($pat, $dst, $text);
Dries's avatar
 
Dries committed
393 394
}

Dries's avatar
 
Dries committed
395
function node_comment_mode($nid) {
Dries's avatar
 
Dries committed
396 397 398 399 400
  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
401 402
}

Dries's avatar
CHANGES  
Dries committed
403
function node_filter($text) {
Dries's avatar
 
Dries committed
404 405 406 407 408
  $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
409 410
  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
411 412

  return trim($text);
Dries's avatar
CHANGES  
Dries committed
413 414
}

415
function node_link($type, $node = 0, $main = 0) {
Dries's avatar
 
Dries committed
416

Dries's avatar
 
Dries committed
417
  if ($type == "admin" && user_access("administer nodes")) {
Dries's avatar
 
Dries committed
418
    $links[] = la(t("content management"), array("mod" => "node"));
Dries's avatar
 
Dries committed
419 420
  }

Dries's avatar
 
Dries committed
421
  if ($type == "page") {
Kjartan's avatar
Kjartan committed
422
    $links[] = lm(t("submit"), array("mod" => "node", "op" => "add"), "", array("title" => t("Submit or suggest new content.")));
Dries's avatar
 
Dries committed
423 424
  }

Dries's avatar
 
Dries committed
425
  if ($type == "node") {
Kjartan's avatar
Kjartan committed
426 427 428
    if ($node->links) {
      $links = $node->links;
    }
Dries's avatar
 
Dries committed
429

430
    if ($main == 1 && $node->teaser && $node->teaser != $node->body) {
Kjartan's avatar
Kjartan committed
431
      $links[] = l(t("read more"), array("id" => $node->nid), "node", "", array("title" => t("Read the rest of this posting.")));
Dries's avatar
 
Dries committed
432
    }
Dries's avatar
 
Dries committed
433 434

    if (user_access("administer nodes")) {
Kjartan's avatar
Kjartan committed
435
       $links[] = la(t("administer"), array("mod" => "node", "op" => "edit", "id" => $node->nid), "", array("title" => t("Administer this node.")));
Dries's avatar
 
Dries committed
436
    }
Dries's avatar
 
Dries committed
437 438 439 440 441
  }

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

Dries's avatar
 
Dries committed
442
function node_admin_settings($edit = array()) {
Dries's avatar
 
Dries committed
443 444
  global $op;

Dries's avatar
 
Dries committed
445 446 447 448
  if ($op == t("Save configuration")) {
    /*
    ** Save the configuration options:
    */
Dries's avatar
Dries committed
449

Dries's avatar
 
Dries committed
450 451 452
    foreach ($edit as $name => $value) {
      variable_set($name, $value);
    }
Dries's avatar
 
Dries committed
453 454
  }

Dries's avatar
 
Dries committed
455 456 457 458
  if ($op == t("Reset to defaults")) {
    /*
    ** Reset the configuration options to their default value:
    */
Dries's avatar
 
Dries committed
459

460
    foreach ($edit as $name => $value) {
Dries's avatar
 
Dries committed
461 462
      variable_del($name);
    }
Dries's avatar
 
Dries committed
463
  }
Dries's avatar
Dries committed
464

Dries's avatar
 
Dries committed
465
  $output .= "<h3>". t("Global node settings") ."</h3>";
Dries's avatar
 
Dries committed
466
  $output .= node_conf_options();
Dries's avatar
 
Dries committed
467 468 469

  foreach (module_list() as $name) {
    if (module_hook($name, "conf_options") && module_hook($name, "node")) {
Dries's avatar
 
Dries committed
470
      $output .= "<h3>". t("%module settings", array("%module" => ucfirst(module_invoke($name, "node", "name")))) ."</h3>";
Dries's avatar
 
Dries committed
471 472 473 474
      $output .= module_invoke($name, "conf_options");
    }
  }

Dries's avatar
 
Dries committed
475 476
  $output .= form_submit(t("Save configuration"));
  $output .= form_submit(t("Reset to defaults"));
Dries's avatar
Dries committed
477

Dries's avatar
 
Dries committed
478
  return form($output);
Dries's avatar
 
Dries committed
479 480
}

Dries's avatar
 
Dries committed
481
function node_admin_edit($node) {
Dries's avatar
 
Dries committed
482

Dries's avatar
 
Dries committed
483
  if (is_numeric($node)) {
Dries's avatar
 
Dries committed
484
    $node = node_load(array("nid" => $node));
Dries's avatar
 
Dries committed
485
  }
Dries's avatar
 
Dries committed
486

Dries's avatar
 
Dries committed
487 488 489
  /*
  ** Edit node:
  */
Dries's avatar
 
Dries committed
490

Dries's avatar
 
Dries committed
491
  $output .= "<h3>". t("Edit %module", array("%module" => module_invoke($node->type, "node", "name"))) ."</h3>";
Dries's avatar
 
Dries committed
492

Dries's avatar
 
Dries committed
493
  $output .= node_form($node);
Dries's avatar
 
Dries committed
494

Dries's avatar
 
Dries committed
495 496 497 498 499 500 501
  /*
  ** Edit revisions:
  */

  if ($node->revisions) {
    $output .= "<h3>". t("Edit revisions") ."</h3>";
    $output .= "<table border=\"1\" cellpadding=\"2\" cellspacing=\"2\">";
Dries's avatar
 
Dries committed
502
    $output .= " <tr><th>". t("older revisions") ."</th><th colspan=\"3\">". t("operations") ."</th></tr>";
Dries's avatar
 
Dries committed
503
    foreach ($node->revisions as $key => $revision) {
504
      $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
505 506 507 508
    }
    $output .= "</table>";
  }

Dries's avatar
 
Dries committed
509
  /*
Dries's avatar
 
Dries committed
510
  ** Display the node form extensions:
Dries's avatar
 
Dries committed
511
  */
Dries's avatar
 
Dries committed
512

Dries's avatar
 
Dries committed
513 514
  foreach (module_list() as $name) {
    $output .= module_invoke($name, "node_link", $node);
Dries's avatar
Dries committed
515 516
  }

Dries's avatar
 
Dries committed
517
  return $output;
Dries's avatar
 
Dries committed
518 519 520

}

Dries's avatar
 
Dries committed
521 522
function node_admin_nodes() {
  global $query;
Dries's avatar
 
Dries committed
523

Dries's avatar
 
Dries committed
524
  $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
525

Dries's avatar
 
Dries committed
526
  $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
527

Dries's avatar
 
Dries committed
528
  foreach ($queries as $key => $value) {
Dries's avatar
 
Dries committed
529
    $links[] = la($value[1], array("mod" => "node", "op" => "nodes", "query" => $key));
Dries's avatar
Dries committed
530 531
  }

Dries's avatar
 
Dries committed
532
  $output .= "<small>". implode(" :: ", $links) ."</small><hr />";
Dries's avatar
 
Dries committed
533

Dries's avatar
 
Dries committed
534
  $output .= "<table border=\"1\" cellpadding=\"2\" cellspacing=\"2\">\n";
Dries's avatar
 
Dries committed
535
  $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
536
  while ($node = db_fetch_object($result)) {
Kjartan's avatar
Kjartan committed
537
    $output .= "<tr><td>". l(check_output($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
538
  }
Dries's avatar
 
Dries committed
539 540
  $output .= "<tr><td colspan=\"6\">". pager_display(NULL, 50, 0, "admin") ."</td></tr></table>";

Dries's avatar
 
Dries committed
541

Dries's avatar
 
Dries committed
542
  return $output;
Dries's avatar
Dries committed
543 544
}

Dries's avatar
 
Dries committed
545 546 547 548 549 550 551 552 553 554 555 556
/*
** 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
557 558 559
function node_revision_create($node) {
  global $user;

Dries's avatar
 
Dries committed
560 561 562 563 564
  /*
  ** '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
565
  if ($node->nid && $node->revision) {
Dries's avatar
 
Dries committed
566 567 568 569
    $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
570 571 572 573 574
  }

  return $node;
}

Dries's avatar
 
Dries committed
575 576 577
/*
** Roll-back to the revision with the specified revision number.
*/
Dries's avatar
 
Dries committed
578

Dries's avatar
 
Dries committed
579 580
function node_revision_rollback($node, $revision) {
  global $user;
Dries's avatar
 
Dries committed
581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615

  /*
  ** 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
616
  watchdog("special", "$node->type: rollbacked to revision #$revision of '$node->title'");
Dries's avatar
 
Dries committed
617 618
}

Dries's avatar
 
Dries committed
619 620 621 622 623
/*
** Delete the revision with specified revision number.
*/

function node_revision_delete($node, $revision) {
Dries's avatar
 
Dries committed
624 625

  unset($node->revisions[$revision]);
Dries's avatar
 
Dries committed
626

Dries's avatar
 
Dries committed
627
  node_save($node, array("nid", "revisions"));
Dries's avatar
 
Dries committed
628

Dries's avatar
 
Dries committed
629
  watchdog("special", "$node->type: removed revision #$revision of '$node->title'");
Dries's avatar
 
Dries committed
630 631
}

Dries's avatar
 
Dries committed
632 633 634 635 636 637 638 639 640 641 642
/*
** 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
643 644
}

Dries's avatar
 
Dries committed
645
function node_admin() {
Dries's avatar
 
Dries committed
646
  global $op, $id, $revision, $edit;
Dries's avatar
 
Dries committed
647

Dries's avatar
 
Dries committed
648
  if (user_access("administer nodes")) {
Dries's avatar
 
Dries committed
649

Dries's avatar
 
Dries committed
650 651 652
    /*
    ** Compile a list of the administrative links:
    */
Dries's avatar
Dries committed
653

Dries's avatar
 
Dries committed
654 655 656 657
    $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
658

Dries's avatar
 
Dries committed
659
    print "<small>". implode(" &middot; ", $links) ."</small><hr />";
Dries's avatar
 
Dries committed
660 661 662 663 664 665

    switch ($op) {
      case "help":
        print node_help();
        break;
      case "search":
Dries's avatar
 
Dries committed
666
        print search_type("node", drupal_url(array("mod" => "node", "op" => "search"), "admin"));
Dries's avatar
 
Dries committed
667
        break;
Dries's avatar
 
Dries committed
668 669 670 671
      case t("Save configuration"):
      case t("Reset to defaults"):
      case "settings":
        print node_admin_settings($edit);
Dries's avatar
 
Dries committed
672 673
        break;
      case "edit":
Dries's avatar
 
Dries committed
674
        print node_admin_edit($id);
Dries's avatar
 
Dries committed
675
        break;
Dries's avatar
 
Dries committed
676 677 678
      case "delete":
        print node_delete(array("nid" => $id));
        break;
Dries's avatar
 
Dries committed
679
      case "rollback+revision":
Dries's avatar
 
Dries committed
680 681
        print node_revision_rollback(node_load(array("nid" => $id)), $revision);
        print node_admin_edit($id);
Dries's avatar
 
Dries committed
682
        break;
Dries's avatar
 
Dries committed
683
      case "delete+revision":
Dries's avatar
 
Dries committed
684 685
        print node_revision_delete(node_load(array("nid" => $id)), $revision);
        print node_admin_edit($id);
Dries's avatar
 
Dries committed
686
        break;
Dries's avatar
 
Dries committed
687
      case t("Preview"):
Dries's avatar
 
Dries committed
688
        $edit = object2array(node_validate($edit, $error));
Dries's avatar
 
Dries committed
689
        print node_preview($edit);
Dries's avatar
 
Dries committed
690
        break;
Dries's avatar
 
Dries committed
691
      case t("Submit"):
Dries's avatar
 
Dries committed
692 693 694
        print node_submit($edit);
        break;
      case t("Delete"):
Dries's avatar
 
Dries committed
695
        print node_delete($edit);
Dries's avatar
 
Dries committed
696
        break;
Dries's avatar
 
Dries committed
697
      default:
Dries's avatar
 
Dries committed
698
        print node_admin_nodes();
Dries's avatar
 
Dries committed
699 700 701 702
    }
  }
  else {
    print message_access();
Dries's avatar
 
Dries committed
703 704 705
  }
}

Dries's avatar
 
Dries committed
706
function node_block($op = "list", $delta = 0) {
Dries's avatar
 
Dries committed
707
  global $theme;
Dries's avatar
 
Dries committed
708 709 710 711 712 713 714
  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
715

Dries's avatar
 
Dries committed
716 717
    return $block;
  }
Dries's avatar
 
Dries committed
718 719
}

Kjartan's avatar
Kjartan committed
720 721 722 723 724 725
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
726

Kjartan's avatar
Kjartan committed
727 728 729
  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
730

Kjartan's avatar
Kjartan committed
731 732 733
  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
734
    $items .= format_rss_item($item->title, $link, $item->teaser);
Dries's avatar
 
Dries committed
735 736
  }

Kjartan's avatar
Kjartan committed
737
  $output .= "<?xml version=\"1.0\" ". t("encoding=\"ISO-8859-1\""). "?>\n";
Kjartan's avatar
Kjartan committed
738
  $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
739
    // 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
740 741 742 743 744 745 746
  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
747 748
  $output .= "</rss>\n";

Dries's avatar
 
Dries committed
749
  header("Content-Type: text/xml");
Dries's avatar
 
Dries committed
750 751 752
  print $output;
}

753
function node_validate($node, &$error) {
Dries's avatar
 
Dries committed
754 755 756 757 758 759 760

  global $user;

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

Dries's avatar
 
Dries committed
761
  $node = array2object($node);
Dries's avatar
 
Dries committed
762 763 764 765 766

  /*
  ** Validate the title field:
  */

Dries's avatar
 
Dries committed
767
  if (isset($node->title) && !$node->title) {
Dries's avatar
 
Dries committed
768
    $error["title"] = theme_invoke("theme_error", t("You have to specify a valid title."));
Dries's avatar
 
Dries committed
769 770 771 772 773 774 775 776
  }

  if (user_access("administer nodes")) {

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

Dries's avatar
 
Dries committed
777 778
    if (!$node->created) {
      $node->created = time();
Dries's avatar
 
Dries committed
779 780
    }

Dries's avatar
 
Dries committed
781 782
    if (!$node->date) {
      $node->date = date("M j, Y g:i a", $node->created);
Dries's avatar
 
Dries committed
783 784 785 786 787 788
    }

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

Dries's avatar
 
Dries committed
789 790 791 792 793 794 795 796 797
    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
798
      $node->uid = $account->uid;
Dries's avatar
 
Dries committed
799 800
    }
    else {
Dries's avatar
 
Dries committed
801
      $error["name"] = theme_invoke("theme_error", t("The name '%u' does not exist.", array ("%u" => $node->name)));
Dries's avatar
 
Dries committed
802 803 804 805 806 807
    }

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

Dries's avatar
 
Dries committed
808 809
    if (strtotime($node->date) > 1000) {
      $node->created = strtotime($node->date);
Dries's avatar
 
Dries committed
810 811
    }
    else {
Dries's avatar
 
Dries committed
812
      $error["date"] = theme_invoke("theme_error", t("You have to specifiy a valid date."));
Dries's avatar
 
Dries committed
813 814 815
    }
  }

Dries's avatar
 
Dries committed
816 817 818 819 820 821 822 823 824
  /*
  ** Do node type specific validation checks.
  */

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

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

Dries's avatar
 
Dries committed
828

Dries's avatar
 
Dries committed
829
function node_form($edit, $error = NULL) {
Dries's avatar
 
Dries committed
830

Dries's avatar
 
Dries committed
831 832 833 834 835 836 837
  /*
  ** 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
838 839 840 841
  /*
  ** Validate the node:
  */

Dries's avatar
 
Dries committed
842
  if (!$error) {
843 844
    /* Only validate if we don't already know the errors. */
    $edit = node_validate($edit, $error);
Dries's avatar
 
Dries committed
845
  }
Dries's avatar
 
Dries committed
846

Dries's avatar
 
Dries committed
847 848 849 850 851 852
  /*
  ** Get the node specific bits:
  */

  $function = $edit->type ."_form";
  if (function_exists($function)) {
Kjartan's avatar
Kjartan committed
853
    $form .= $function($edit, $help, $error, $param);
Dries's avatar
 
Dries committed
854 855 856 857 858 859 860 861 862 863
  }

  /*
  ** Add the help text:
  */

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

Dries's avatar
 
Dries committed
864 865 866 867
  $output .= "<table border=\"0\" cellpadding=\"2\" cellspacing=\"2\">";
  $output .= " <tr>";
  $output .= "  <td valign=\"top\">";

Dries's avatar
 
Dries committed
868 869 870 871 872 873 874
  /*
  ** Add the default fields:
  */

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

  /*
Dries's avatar
 
Dries committed
875
  ** Add the node specific fields:
Dries's avatar
 
Dries committed
876 877
  */

Dries's avatar
 
Dries committed
878
  $output .= $form;
Dries's avatar
 
Dries committed
879 880 881 882 883 884 885 886 887

  /*
  ** Add the hidden fields:
  */

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

Dries's avatar
 
Dries committed
888 889 890 891 892
  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
893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911
    $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
912
  if ($edit->nid && node_access("delete", $edit)) {
Dries's avatar
 
Dries committed
913 914 915 916 917 918 919 920
    $output .= form_submit(t("Delete"));
  }

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

  if (user_access("administer nodes")) {
Dries's avatar
 
Dries committed
921
    $output .= "</td><td align=\"left\" valign=\"top\">";
922
    $output .= form_textfield(t("Authored by"), "name", $edit->name, 20, 60, $error["name"]);
Dries's avatar
 
Dries committed
923 924
    $output .= form_textfield(t("Authored on"), "date", $edit->date, 20, 25, $error["date"]);
    $output .= "<br />";
Dries's avatar
 
Dries committed
925
    $output .= form_select(t("Moderation status"), "moderate", $edit->moderate, array(t("Approved"), t("Awaiting approval")));
Dries's avatar
 
Dries committed
926 927
    $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
928 929
    // TODO: move this to the comment.module
    if (module_exist("comment")) {
Dries's avatar
 
Dries committed
930
      $output .= form_select(t("Allow user comments"), "comment", $edit->comment, array(t("Disabled"), t("Read only"), t("Read-write")));
Kjartan's avatar
Kjartan committed
931
    }
Dries's avatar
 
Dries committed
932
    $output .= form_select(t("Create new revision"), "revision", $edit->revision, array(t("Disabled"), t("Enabled")));
Dries's avatar
 
Dries committed
933 934
  }

Dries's avatar
 
Dries committed
935 936 937 938
  $output .= "  </td>";
  $output .= " </tr>";
  $output .= "</table>";

Kjartan's avatar
Kjartan committed
939
  return form($output, ($param["method"] ? $param["method"] : "post"), $param["action"], $param["options"]);
Dries's avatar
 
Dries committed
940 941 942
}

function node_add($type) {
943
  global $user, $edit;
Dries's avatar
 
Dries committed
944

Dries's avatar
 
Dries committed
945
  /*
Dries's avatar
 
Dries committed
946
  ** If a node type has been specified, validate it existence.  If no
Dries's avatar
 
Dries committed
947 948 949
  ** (valid) node type has been provied, display a node type overview.
  */

Dries's avatar
 
Dries committed
950
  if ($type && node_access("create", $type)) {
951
    // Initialize settings
Dries's avatar
 
Dries committed
952
    $node = array("uid" => $user->uid, "name" => $user->name, "type" => $type, "status" => 1, "promote" => !module_exist("queue"), "moderate" => module_exist("queue"), "comment" => 2);
953 954 955 956
    foreach (array("title", "teaser", "body") as $field) {
      if ($edit[$field]) {
        $node[$field] = check_input($edit[$field]);
      }
Dries's avatar
 
Dries committed
957
    }
958
    $output = node_form($node);
Dries's avatar
 
Dries committed
959 960
  }
  else {
Dries's avatar
 
Dries committed
961

Dries's avatar
 
Dries committed
962 963 964
    /*
    ** Compile a list with the different node types and their explanation:
    */
Dries's avatar
 
Dries committed
965

Dries's avatar
 
Dries committed
966
    foreach (module_list() as $name) {
Dries's avatar
 
Dries committed
967
      if (module_hook($name, "node") && node_access("create", $name)) {
Dries's avatar
 
Dries committed
968
        $output .= "<li>";
Kjartan's avatar
Kjartan committed
969
        $output .= " ". lm(module_invoke($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
970 971
        $output .= " <div style=\"margin-left: 20px;\">". module_invoke($name, "node", "description") ."</div>";
        $output .= "</li>";
Dries's avatar
 
Dries committed
972
      }
Dries's avatar
 
Dries committed
973 974
    }

Dries's avatar
 
Dries committed
975 976
    $output = t("Choose the appropriate item from the list:") ."<ul>$output</ul>";

Dries's avatar
 
Dries committed
977 978 979 980 981 982 983 984 985 986
  }

  return $output;
}

function node_edit($id) {
  global $user;

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

Dries's avatar
 
Dries committed
987 988 989 990 991 992 993 994
  if (node_access("update", $node)) {
    $output = node_form($node);
  }
  else {
    $output = message_access();
  }

  return $output;
Dries's avatar
 
Dries committed
995 996
}

Dries's avatar
 
Dries committed
997
function node_preview($node, $error = NULL) {
Dries's avatar
 
Dries committed
998 999 1000 1001 1002

  /*
  ** Convert the array to an object:
  */

Dries's avatar
 
Dries committed
1003
  $node = array2object($node);
Dries's avatar
 
Dries committed
1004 1005 1006 1007 1008

  /*
  ** Load the user's name when needed:
  */

Dries's avatar
 
Dries committed
1009 1010