node.module 18 KB
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<?php

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class Node {
  function Node($node) {
    global $user;
    $this->userid = $node[userid] ? $node[userid] : $user->userid;
    $this->title = $node[title];
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    $this->attributes = $node[attributes];
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    $this->timestamp = $node[timestamp] ? $node[timestamp] : time();
  }
}
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function node_help() {
  global $mod;
 ?>
  <P>Todo.</P>
 <?php

  if ($mod == "node") {
    foreach (module_list() as $name) {
      if (module_hook($name, "status") && $name != "node") {
        print "<H3>". ucfirst($name) ." type</H3>";
        print module_invoke($name, "help");
      }
    }
  }
}

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function node_perm() {
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  return array("administer nodes", "access content", "post content");
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}

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function node_conf_options() {
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  $output .= form_select("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), "The default maximum number of nodes to display on the main page.");
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  return $output;
}

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function node_conf_filters() {
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  $output .= form_select("Enable HTML tags", "filter_html", variable_get("filter_html", 0), array("Disabled", "Enabled"), "Allow HTML and PHP tags in user-contributed content.");
  $output .= form_textfield("Allowed HTML tags", "allowed_html", variable_get("allowed_html", "<A><B><BLOCKQUOTE><DD><DL><DT><I><LI><OL><U><UL>"), 64, 128, "If enabled, optionally specify tags which should not be stripped.  'STYLE' attributes, 'ON' attributes and unclosed tags are always stripped.");
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  $output .= "<HR>";
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  $output .= form_select("Enable link tags", "filter_link", variable_get("filter_link", 0), array("Disabled", "Enabled"), "Substitute special [[link]] tags.");
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  $output .= "<HR>";
  return $output;
}

function node_filter_html($text) {
  $text = eregi_replace("([ \f\r\t\n\'\"])style=[^>]+", "\\1", $text);
  $text = eregi_replace("([ \f\r\t\n\'\"])on[a-z]+=[^>]+", "\\1", $text);
  $text = strip_tags($text, variable_get("allowed_html", ""));
  return $text;
}

function node_filter_link($text) {
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  $src = array("/\[\[(([^\|]*?)(\|([^\|]*?))?)\]\]/e");  // [link|description]
  $dst = array(format_tag('\\2', '\\4'));                // [link|description]
  return preg_replace($src, $dst, $text);
}

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function node_filter($text) {
  if (variable_get("filter_html", 0)) $text = node_filter_html($text);
  if (variable_get("filter_link", 0)) $text = node_filter_link($text);
  return $text;
}

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function node_cron() {
  db_query("UPDATE node SET status = '". node_status("posted") ."', timestamp_posted = '' WHERE timestamp_posted > 0 AND timestamp_posted < ". time());
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  db_query("UPDATE node SET status = '". node_status("queued") ."', timestamp_queued = '' WHERE timestamp_queued > 0 AND timestamp_queued < ". time());
  db_query("UPDATE node SET status = '". node_status("dumped") ."', timestamp_hidden = '' WHERE timestamp_hidden > 0 AND timestamp_hidden < ". time());
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}

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function node_link($type, $node = 0) {
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  if ($type == "admin" && user_access("administer nodes")) {
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    $links[] = "<a href=\"admin.php?mod=node\">content</a>";
  }

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  if ($type == "node") {
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    if ($node->body) {
      $links[] = "<a href=\"node.php?id=". $node->nid ."\">". t("read more") ."</a>";
    }
    if ($node->comment) {
      $links[] = "<a href=\"node.php?id=". $node->nid ."\">". format_plural(node_get_comments($node->nid), "comment", "comments") ."</a>";
    }
  }

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

function node_links($nid, $type) {
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  global $op;

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  $link[] = ($op == "view") ? "view node" : "<A HREF=\"node.php?id=$nid\">view node</A>";
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  $link[] = ($op == "content") ? "edit content" : "<A HREF=\"admin.php?mod=node&type=$type&op=content&id=$nid\">edit content</A>";
  $link[] = ($op == "option") ? "edit options" : "<A HREF=\"admin.php?mod=node&op=option&id=$nid\">edit options</A>";
  $link[] = ($op == "status") ? "edit status" : "<A HREF=\"admin.php?mod=node&op=status&id=$nid\">edit status</A>";
  $link[] = ($op == "attribute") ? "edit attribute" : "<A HREF=\"admin.php?mod=node&op=attribute&id=$nid\">edit attributes</A>";
  $link[] = ($op == "delete") ? "delete node" : "<A HREF=\"admin.php?mod=node&op=delete&id=$nid\">delete node</A>";
  return $link;
}

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function node_overview($query) {
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  global $user;
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  $color = array("#ffffff", "#e5e5e5");
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  $query = node_query($query ? $query : 0);
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  $result = db_query("SELECT n.*, u.userid FROM node n LEFT JOIN users u ON n.author = u.id $query[1] LIMIT 50");
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  $output .= status($query[0]);
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  $output .= "<TABLE BORDER=\"1\" CELLPADDING=\"2\" CELLSPACING=\"2\">\n";
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  $output .= " <TR><TH>title</TH><TH>type</TH><TH>status</TH><TH>meta attributes</TH><TH>author</TH><TH>date</TH></TR>\n";

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  while ($node = db_fetch_object($result)) {
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    $bg = $color[$i++ % sizeof($color)];
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    $output .= " <TR BGCOLOR=\"$bg\"><TD><A HREF=\"node.php?id=$node->nid\">". check_output($node->title) ."</A></TD><TD ALIGN=\"center\">$node->type</TD><TD>". node_status($node->status) ."</TD><TD>". check_output($node->attributes) ."</TD><TD>". format_username($node->userid) ."</TD><TD>". format_date($node->timestamp, "small") ."</TD></TR>\n";
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    $output .= " <TR BGCOLOR=\"$bg\"><TD ALIGN=\"right\" COLSPAN=\"6\"><SMALL>". implode(", ", node_links($node->nid, $node->type)) ."</SMALL></TD>\n";
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  }
  $output .= "</TABLE>\n";

  return $output;
}

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function node_edit_option($id) {
  global $user;

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  $node = node_get_object(array("nid" => $id));
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  $form .= form_item("Title", check_output($node->title));
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  $form .= form_item("Operations", implode("<br />", node_links($node->nid, $node->type)));
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  $form .= form_select("Comment", "comment", $node->comment, node_comment_status(), "Allow users to post comments to this node.");
  $form .= form_select("Promote", "promote", $node->promote, node_promote_status(), "Promote this node on the main page.");
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  $form .= form_textfield("Moderate", "moderate", $node->moderate, 35, 255, t("A comma-seperated list of the moderators their usernames."));
  $form .= form_hidden("nid", $node->nid);
  $form .= form_submit("Save node");
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  return form("admin.php?mod=node&id=$node->nid", $form);
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}

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function node_edit_attribute($id) {
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  global $user;
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  $node = node_get_object(array("nid" => $id));
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  $form .= form_item("Title", check_output($node->title));
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  $form .= form_item("Operations", implode("<br />", node_links($node->nid, $node->type)));
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  $form .= form_textfield("Attributes", "attributes", $node->attributes, 64, 128, "A comma-seperated list of attributes.  Example: 'Software, Webserver, Apache'.");
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  $form .= form_hidden("nid", $node->nid);
  $form .= form_submit("Save node");
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  return form("admin.php?mod=node&id=$node->nid", $form);
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}

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function node_edit_status($id) {
  global $REQUEST_URI;

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

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  $form .= form_item("Title", check_output($node->title));
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  $form .= form_item("Operations", implode("<br />", node_links($node->nid, $node->type)));
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  $form .= form_select("Current status", "status", $node->status, node_status($node->type));
  $form .= form_textfield("Automatically post document", "timestamp_posted", ($node->timestamp_posted ? format_date($node->timestamp_posted) : ""), 30, 55, "The date at which your document will be automatically posted.  Leave empty if you don't want to schedule this document, or fill out a string containing an English date format.  Example input: '". date("j F Y G:i") ."', '". date("m/d/y H:i") ."', '". date("F j, Y H:i") ."', ...");
  $form .= form_textfield("Automatically queue document", "timestamp_queued", ($node->timestamp_queued ? format_date($node->timestamp_queued) : ""), 30, 55, "The date at which your document will be automatically queued.  Leave empty if you don't want to schedule this document, or fill out a string containing an English date format.  Example input: '". date("j F Y G:i") ."', '". date("m/d/y H:i") ."', '". date("F j, Y H:i") ."', ...");
  $form .= form_textfield("Automatically hide document", "timestamp_hidden", ($node->timestamp_hidden ? format_date($node->timestamp_hidden) : ""), 30, 55, "The date at which your document will be automatically hidden.  Leave empty if you don't want to schedule this document, or fill out a string containing an English date format.  Example input: '". date("j F Y G:i") ."', '". date("m/d/y H:i") ."', '". date("F j, Y H:i") ."', ...");
  $form .= form_hidden("nid", $node->nid);
  $form .= form_submit("Save node");

  return form($REQUEST_URI, $form);
}

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function node_edit_content($edit, $type) {
  $edit[type] = $type;
  return node_invoke($edit, "form");
}

function node_save_content($edit, $type) {
  $edit[type] = $type;
  return node_invoke($edit, "save");
}

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function node_delete($id) {
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  return (node_del(array("nid" => $id)) ? "node has been deleted." : "failed to delete node: set node status to 'dumped' first.");
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}

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function node_query($type = -1) {
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  $queries[] = array("all nodes: recent additions", "ORDER BY n.timestamp DESC");
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  $queries[] = array("all nodes: status set to 'posted'", "WHERE n.status = ". node_status("posted") ." ORDER BY n.timestamp DESC");
  $queries[] = array("all nodes: status set to 'queued'", "WHERE n.status = ". node_status("queued") ." ORDER BY n.timestamp DESC");
  $queries[] = array("all nodes: status set to 'dumped'", "WHERE n.status = ". node_status("dumped") ." ORDER BY n.timestamp DESC");
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  $queries[] = array("all nodes: scheduled to be posted", "WHERE n.timestamp_posted > 0 ORDER BY n.timestamp DESC");
  $queries[] = array("all nodes: scheduled to be queued", "WHERE n.timestamp_queued > 0 ORDER BY n.timestamp DESC");
  $queries[] = array("all nodes: scheduled to be hidden", "WHERE n.timestamp_hidden > 0 ORDER BY n.timestamp DESC");

  foreach (module_list() as $name) {
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    if (module_hook($name, "status")) {
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      $queries[] = array("$name: recent additions", "WHERE n.type = '$name' ORDER BY n.timestamp DESC");
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      $statuses = module_invoke($name, "status");
      if (is_array($statuses)) {
        foreach (array_reverse($statuses) as $key=>$status) {
          $queries[] = array("$name: status set to '$status'", "WHERE n.type = '$name' AND n.status = '". node_status($status) ."' ORDER BY n.timestamp DESC");
        }
        $queries[] = array("$name: scheduled to be posted", "WHERE n.type = '$name' AND n.timestamp_posted > 0 ORDER BY n.timestamp DESC");
        $queries[] = array("$name: scheduled to be queued", "WHERE n.type = '$name' AND n.timestamp_queued > 0 ORDER BY n.timestamp DESC");
        $queries[] = array("$name: scheduled to be hidden", "WHERE n.type = '$name' AND n.timestamp_hidden > 0 ORDER BY n.timestamp DESC");
      }
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    }
  }

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  return ($type < 0 ? $queries : $queries[$type]);
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}

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function node_listing($queries) {
  global $mod;
  foreach ($queries as $key=>$array) {
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    $output .= "<LI><A HREF=\"admin.php?mod=$mod&query=$key\">$array[0]</A></LI>\n";
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  }
  return "<OL>$output</OL>\n";
}

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function node_setting() {
  global $REQUEST_URI;

  $threshold_post = array(1 => 1, 2 => 2, 3 => 3, 4 => 4, 5 => 5, 6 => 6, 7 => 7, 8 => 8, 9 => 9, 10 => 10, 11 => 11, 12 => 12, 13 => 13, 14 => 14, 15 => 15, 20 => 20, 25 => 25, 30 => 30, 35 => 35, 40 => 40, 45 => 45, 50 => 50, 60 => 60, 70 => 70, 80 => 80, 90 => 90, 100 => 100);
  $threshold_dump = array(-1 => -1, -2 => -2, -3 => -3, -4 => -4, -5 => -5, -6 => -6, -7 => -7, -8 => -8, -9 => -9, -10 => -10, -11 => -11, -12 => -12, -13 => -13, -14 => -14, -15 => -15, -20 => -20, -25 => -25, -30 => -30);
  $threshold_expire = array(1 => 1, 2 => 2, 3 => 3, 4 => 4, 5 => 5, 6 => 6, 7 => 7, 8 => 8, 9 => 9, 10 => 10, 11 => 11, 12 => 12, 13 => 13, 14 => 14, 15 => 15, 20 => 20, 25 => 25, 30 => 30, 35 => 35, 40 => 40, 45 => 45, 50 => 50, 60 => 60, 70 => 70, 80 => 80, 90 => 90, 100 => 100);

  foreach (module_list() as $name) {
    if (module_hook($name, "user")) {
      $form .= "<H3>Default settings for $name nodes</H3>";
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      $form .= form_select(t("Comment"), $name ."_comment", variable_get($name ."_comment", 0), node_comment_status(), "By default, allow or dissallow users to post comments in this category.");
      $form .= form_select(t("Promote"), $name ."_promote", variable_get($name ."_promote", 0), node_promote_status(), "By default, promote new submissions in this category to the front page.");
      $form .= form_select(t("Status"), $name ."_status", variable_get($name ."_status", node_status("queued")), node_status($name), "What to do with new submissions in this category?");
      $form .= form_select(t("Post threshold"), $name ."_post", variable_get($name ."_post", 4), $threshold_post, "If new submissions are subject to moderation, select a post threshold.");
      $form .= form_select(t("Dump threshold"), $name ."_dump", variable_get($name ."_dump", -2), $threshold_dump, "If new submissions are subject to moderation, select a dump threshold.");
      $form .= form_select(t("Expiration threshold"), $name ."_expire", variable_get($name ."_expire", 8), $threshold_expire, "If new submissions are subject to moderation, select a expiration threshold.");
      $form .= form_textfield("Moderate", $name ."_moderate", variable_get($name ."_moderate", ""), 35, 255, "A comma-seperated list of the moderators' usernames.");
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    }
  }

  $form .= form_submit("Save settings");
  $form .= form_submit("Reset to defaults");

  return form($REQUEST_URI, $form);
}

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function node_admin_save($edit) {
  if (isset($edit[status])) {
    $edit[timestamp_posted] = (strtotime($edit[timestamp_posted]) > time()) ? strtotime($edit[timestamp_posted]) : 0;
    $edit[timestamp_queued] = (strtotime($edit[timestamp_queued]) > time()) ? strtotime($edit[timestamp_queued]) : 0;
    $edit[timestamp_hidden] = (strtotime($edit[timestamp_hidden]) > time()) ? strtotime($edit[timestamp_hidden]) : 0;
    node_save($edit, array(status, timestamp_posted, timestamp_queued, timestamp_hidden));
  }
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  else if (isset($edit[attributes])) {
    node_save($edit, array(attributes));
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  }
  else {
    node_save($edit, array(comment, moderate, promote));
  }
}

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function node_module_find() {
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  global $REQUEST_URI;

  foreach (module_list() as $name) {
    if (module_hook($name, "user")) {
      $options .= "<OPTION VALUE=\"$name\">$name</OPTION>\n";
    }
  }

  $output .= "<FORM ACTION=\"$REQUEST_URI\" METHOD=\"POST\">\n";
  $output .= " <INPUT SIZE=\"50\" VALUE=\"". check_form($keys) ."\" NAME=\"keys\" TYPE=\"text\">\n";
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  $output .= " <SELECT NAME=\"type\">$options</SELECT>\n";
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  $output .= " <INPUT TYPE=\"submit\" VALUE=\"Search\">\n";
  $output .= "</FORM>\n";

  return $output;
}

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function node_edit($node) {
  $output .= form_item("Title", $node->title);
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  $output .= form_item("Operations", implode("<br />", node_links($node->nid, $node->type)));
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  return $output;
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}

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function node_admin() {
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  global $op, $id, $edit, $query, $type, $keys;
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  if (user_access("administer nodes")) {
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    foreach (module_list() as $name) {
      if (module_hook($name, "status") && $name != "node") {
        $link[] = "<A HREF=\"admin.php?mod=node&type=$name&op=add\">add $name</A>";
      }
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    }

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    print "<SMALL>". implode(" | ", $link) ." | <A HREF=\"admin.php?mod=node&op=default\">node settings</A> | <A HREF=\"admin.php?mod=node&op=listing\">node listings</A> | <A HREF=\"admin.php?mod=node&op=search\">search node</A> | <A HREF=\"admin.php?mod=node\">overview</A> | <A HREF=\"admin.php?mod=node&op=help\">help</A></SMALL><HR>\n";

    $id = check_input($edit[nid] ? $edit[nid] : $id);

    switch ($op) {
      case "add":
        print module_invoke($type, "form");
        break;
      case "help":
        print node_help();
        break;
      case "search":
        print node_module_find($id);
        print search_data($keys, $type);
        break;
      case "status":
        print node_edit_status($id);
        break;
      case "option":
        print node_edit_option($id);
        break;
      case "attribute":
        print node_edit_attribute($id);
        break;
      case "content":
        print node_edit_content(node_get_array(array("nid" => $id)), $type);
        break;
      case "default":
        print node_setting();
        break;
      case "delete":
        print status(node_delete($id));
        print node_overview($query);
        break;
      case "listing":
        print node_listing(node_query());
        break;
      case "Save settings":
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        print status(system_save($edit));
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        print node_setting();
        break;
      case "Reset to defaults":
        print status(conf_default($edit));
        print node_setting();
        break;
      case "Save node":
        print node_admin_save($edit);
        print node_overview($query);
        break;
      case "edit":
        print node_edit(node_get_object(array("nid" => $id)));
        break;
      case "view":
        print node_module_view(node_get_array(array("nid" => $id)), $type);
        break;
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      case t("Preview"):
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        print node_edit_content($edit, $type);
        break;
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      case t("Submit"):
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         print status(node_save_content($edit, $type));
        // fall through:
      default:
        print node_overview($query);
    }
  }
  else {
    print message_access();
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  }
}

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function node_block() {
  global $theme;

  $block[0][subject] = t("Syndicate");
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  $block[0][content] = "<div align=\"center\"><a href=\"module.php?mod=node&op=feed\"><img src=\"". $theme->image("xml.gif") ."\" width=\"36\" height=\"14\" border=\"0\" /></a></div>\n";
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  $block[0][info] = "Syndicate";

  return $block;
}

function node_feed() {
  $result = db_query("SELECT nid, type FROM node WHERE promote = '1' AND status = '". node_status("posted") ."' ORDER BY timestamp DESC LIMIT 15");

  while ($node = db_fetch_object($result)) {
    $item = node_get_object(array("nid" => $node->nid, "type" => $node->type));

    $title = $item->title;
    $link = path_uri() ."node.php?id=$item->nid";
    $description = module_invoke($item->type, "summary", $item);

    $items .= format_rss_item($title, $link, $description);
  }

  $output .= "<?xml version=\"1.0\" encoding=\"ISO-8859-1\" ?>\n";
  $output .= "<rss version=\"0.91\">\n";
  $output .= format_rss_channel(variable_get("site_name", "drupal"), path_uri() ."module.php?mod=node&op=feed", variable_get("site_slogan", ""), $items);
  $output .= "</rss>\n";

  print $output;

}

function node_page() {
  global $op;

  if ($op == "feed") {
    node_feed();
  }
}

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?>