/**
* list versions
*
* @param resource the SQL result
* @return string the rendered text
*
* @see layouts/layout.php
**/
function layout($result)
{
global $context;
// empty list
if (!SQL::count($result)) {
$output = array();
return $output;
}
// we return an array of ($url => $attributes)
$items = array();
// process all items in the list
while ($item = SQL::fetch($result)) {
// initialize variables
$prefix = $suffix = $icon = '';
// the url to view this item
$url = '_' . $item['id'];
// Versions::get_url($item['id']);
// version description
$label = sprintf(i18n::s('edited by %s %s'), ucfirst($item['edit_name']), Skin::build_date($item['edit_date']));
// command to view this version
$suffix .= ' ' . Skin::build_link(Versions::get_url($item['id'], 'view'), i18n::s('compare to current version'), 'button');
// list all components for this item
$items[$url] = array($prefix, $label, $suffix, 'version', $icon);
}
// end of processing
SQL::free($result);
return $items;
}
}
// ensure that the surfer can change content
if (Sections::allow_modification($item, $anchor)) {
// modify this page
Skin::define_img('SECTIONS_EDIT_IMG', 'sections/edit.gif');
if (!is_object($overlay) || !($label = $overlay->get_label('edit_command', 'sections'))) {
$label = i18n::s('Edit this section');
}
$context['page_tools'][] = Skin::build_link(Sections::get_url($item['id'], 'edit'), SECTIONS_EDIT_IMG . $label, 'basic', i18n::s('Press [e] to edit'), FALSE, 'e');
}
// commands for section owners
if (Sections::is_owned($item, $anchor) || Surfer::is_associate()) {
// access previous versions, if any
if ($has_versions) {
Skin::define_img('SECTIONS_VERSIONS_IMG', 'sections/versions.gif');
$context['page_tools'][] = Skin::build_link(Versions::get_url('section:' . $item['id'], 'list'), SECTIONS_VERSIONS_IMG . i18n::s('Versions'), 'basic', i18n::s('Restore a previous version if necessary'));
}
// lock the page
if (!isset($item['locked']) || $item['locked'] == 'N') {
Skin::define_img('SECTIONS_LOCK_IMG', 'sections/lock.gif');
$context['page_tools'][] = Skin::build_link(Sections::get_url($item['id'], 'lock'), SECTIONS_LOCK_IMG . i18n::s('Lock'), 'basic');
} else {
Skin::define_img('SECTIONS_UNLOCK_IMG', 'sections/unlock.gif');
$context['page_tools'][] = Skin::build_link(Sections::get_url($item['id'], 'lock'), SECTIONS_UNLOCK_IMG . i18n::s('Unlock'), 'basic');
}
// delete the page
Skin::define_img('SECTIONS_DELETE_IMG', 'sections/delete.gif');
$context['page_tools'][] = Skin::build_link(Sections::get_url($item['id'], 'delete'), SECTIONS_DELETE_IMG . i18n::s('Delete this section'), 'basic');
// manage content
if ($has_content) {
Skin::define_img('SECTIONS_MANAGE_IMG', 'sections/manage.gif');
}
$context['text'] .= Skin::finalize_list($links, 'assistant_bar');
// page help
$help = '';
// information to members
if (Surfer::is_member()) {
$help .= '<p>' . sprintf(i18n::s('This has been posted by %s %s.'), Users::get_link($item['edit_name'], $item['edit_address'], $item['edit_id']), Skin::build_date($item['edit_date'])) . "</p>\n";
}
$help .= '<p><ins>' . i18n::s('Text inserted since that version.') . '</ins></p>' . '<p><del>' . i18n::s('Text suppressed from this version.') . '</del></p>' . '<p>' . i18n::s('Caution: restoration can not be reversed!') . '</p>';
$context['components']['boxes'] = Skin::build_box(i18n::s('Help'), $help, 'boxes', 'help');
//
// the navigation sidebar
//
$text = '';
// buttons to display previous and next pages, if any
if (is_object($anchor)) {
$neighbours = $anchor->get_neighbours('version', $item);
$text .= Skin::neighbours($neighbours, 'sidebar');
}
// build a nice sidebar box
if ($text) {
$text =& Skin::build_box(i18n::s('Navigation'), $text, 'neighbours', 'neighbours');
}
$context['components']['neighbours'] = $text;
//
// referrals, if any, in a sidebar
//
$context['components']['referrals'] =& Skin::build_referrals(Versions::get_url($item['id']));
}
// render the skin
render_skin();
// stop crawlers
if (Surfer::is_crawler()) {
Safe::header('Status: 401 Unauthorized', TRUE, 401);
Logger::error(i18n::s('You are not allowed to perform this operation.'));
// not found
} elseif (!isset($item['id'])) {
include '../error.php';
// an anchor is mandatory
} elseif (!is_object($anchor)) {
Safe::header('Status: 404 Not Found', TRUE, 404);
Logger::error(i18n::s('No anchor has been found.'));
// permission denied
} elseif (!$permitted) {
// surfer has to be authenticated
if (!Surfer::is_logged()) {
Safe::redirect($context['url_to_home'] . $context['url_to_root'] . 'users/login.php?url=' . urlencode(Versions::get_url($item['id'], 'restore')));
}
// permission denied to authenticated user
Safe::header('Status: 401 Unauthorized', TRUE, 401);
Logger::error(i18n::s('You are not allowed to perform this operation.'));
// restoration
} else {
// update the database
if (Versions::restore($item['id'])) {
// provide some feed-back
$context['text'] .= '<p>' . i18n::s('The page has been successfully restored.') . '</p>';
// follow-up commands
$context['text'] .= Skin::build_link($anchor->get_url(), i18n::s('Done'), 'button');
// clear the cache; the article may be listed at many places
Cache::clear();
}
//
// update tools
if (Files::allow_modification($item, $anchor)) {
// modify this page
Skin::define_img('FILES_EDIT_IMG', 'files/edit.gif');
$context['page_tools'][] = Skin::build_link(Files::get_url($item['id'], 'edit'), FILES_EDIT_IMG . i18n::s('Update this file'), 'basic', i18n::s('Press [e] to edit'), FALSE, 'e');
// post an image, if upload is allowed
if (Images::allow_creation($item, $anchor, 'file')) {
Skin::define_img('IMAGES_ADD_IMG', 'images/add.gif');
$context['page_tools'][] = Skin::build_link('images/edit.php?anchor=' . urlencode('file:' . $item['id']), IMAGES_ADD_IMG . i18n::s('Add an image'), 'basic');
}
}
// restore a previous version, if any
if (is_object($anchor) && $anchor->is_owned() && Versions::count_for_anchor('file:' . $item['id'])) {
Skin::define_img('FILES_VERSIONS_IMG', 'files/versions.gif');
$context['page_tools'][] = Skin::build_link(Versions::get_url('file:' . $item['id'], 'list'), FILES_VERSIONS_IMG . i18n::s('Versions'));
}
// delete command provided to associates and owners
if (is_object($anchor) && $anchor->is_owned() || Surfer::is_associate()) {
Skin::define_img('FILES_DELETE_IMG', 'files/delete.gif');
$context['page_tools'][] = Skin::build_link(Files::get_url($item['id'], 'delete'), FILES_DELETE_IMG . i18n::s('Delete this file'));
}
// the navigation sidebar
$text = '';
if (is_object($anchor)) {
$neighbours = $anchor->get_neighbours('file', $item);
$text .= Skin::neighbours($neighbours, 'sidebar');
}
// build a nice sidebar box
if ($text) {
$text =& Skin::build_box(i18n::s('Navigation'), $text, 'neighbours', 'neighbours');
// $context['path_bar'] = array( 'versions/' => i18n::s('Versions') );
// the title of the page
if (is_object($anchor) && $anchor->is_viewable()) {
$context['page_title'] = sprintf(i18n::s('Versions: %s'), $anchor->get_title());
} else {
$context['page_title'] = i18n::s('List versions');
}
// an anchor is mandatory
if (!is_object($anchor)) {
Safe::header('Status: 404 Not Found', TRUE, 404);
Logger::error(i18n::s('No anchor has been found.'));
// permission denied
} elseif (!$permitted) {
// anonymous users are invited to log in or to register
if (!Surfer::is_logged()) {
Safe::redirect($context['url_to_home'] . $context['url_to_root'] . 'users/login.php?url=' . urlencode(Versions::get_url($anchor->get_reference(), 'list')));
}
// permission denied to authenticated user
Safe::header('Status: 401 Unauthorized', TRUE, 401);
Logger::error(i18n::s('You are not allowed to perform this operation.'));
// stop hackers
} elseif ($page > 10) {
Safe::header('Status: 401 Unauthorized', TRUE, 401);
Logger::error(i18n::s('You are not allowed to perform this operation.'));
// display the index
} else {
// insert anchor prefix
if (is_object($anchor)) {
$context['text'] .= $anchor->get_prefix();
}
// cache the section
