/**
* remember the last action for this article
*
* This function is called by related items. What does it do?
* - On image creation, the adequate code is added to the description field to let the image be displayed inline
* - On icon selection, the icon field is updated
* - On thumbnail image selection, the thumbnail image field is updated
* - On location creation, some code is inserted in the description field to display location name inline
* - On table creation, some code is inserted in the description field to display the table inline
*
* @see articles/article.php
* @see articles/edit.php
* @see shared/anchor.php
*
* @param string one of the pre-defined action code
* @param string the id of the item related to this update
* @param boolean TRUE to not change the edit date of this anchor, default is FALSE
*/
function touch($action, $origin = NULL, $silently = FALSE)
{
global $context;
// we make extensive use of comments below
include_once $context['path_to_root'] . 'comments/comments.php';
// don't go further on import
if (preg_match('/import$/i', $action)) {
return;
}
// no article bound
if (!isset($this->item['id'])) {
return;
}
// delegate to overlay
if (is_object($this->overlay) && $this->overlay->touch($action, $origin, $silently) === false) {
return;
// stop on false
}
// clear floating objects
if ($action == 'clear') {
$this->item['description'] .= ' [clear]';
$query = "UPDATE " . SQL::table_name('articles') . " SET description='" . SQL::escape($this->item['description']) . "'" . " WHERE id = " . SQL::escape($this->item['id']);
SQL::query($query);
return;
}
// get the related overlay, if any
if (!isset($this->overlay)) {
$this->overlay = NULL;
if (isset($this->item['overlay'])) {
$this->overlay = Overlay::load($this->item, 'article:' . $this->item['id']);
}
}
// components of the query
$query = array();
// a new comment has been posted
if ($action == 'comment:create') {
// purge oldest comments
Comments::purge_for_anchor('article:' . $this->item['id']);
// file upload
} elseif ($action == 'file:create' || $action == 'file:upload') {
// actually, several files have been added
$label = '';
if (!$origin) {
// only when comments are allowed
if (!Articles::has_option('no_comments', $this->anchor, $this->item)) {
// remember this as an automatic notification
$fields = array();
$fields['anchor'] = 'article:' . $this->item['id'];
$fields['description'] = i18n::s('Several files have been added');
$fields['type'] = 'notification';
Comments::post($fields);
}
// one file has been added
} elseif (!Codes::check_embedded($this->item['description'], 'embed', $origin) && ($item = Files::get($origin, TRUE))) {
// this file is eligible for being embedded in the page
if (isset($item['file_name']) && Files::is_embeddable($item['file_name'])) {
// the overlay may prevent embedding
if (is_object($this->overlay) && !$this->overlay->should_embed_files()) {
} else {
$label = '[embed=' . $origin . ']';
}
// else add a comment to take note of the upload
} else {
// only when comments are allowed
if (!Articles::has_option('no_comments', $this->anchor, $this->item)) {
// remember this as an automatic notification
$fields = array();
$fields['anchor'] = 'article:' . $this->item['id'];
if ($action == 'file:create') {
$fields['description'] = '[file=' . $item['id'] . ',' . $item['file_name'] . ']';
} else {
$fields['description'] = '[download=' . $item['id'] . ',' . $item['file_name'] . ']';
}
Comments::post($fields);
}
}
}
// we are in some interactive thread
if ($origin && $this->has_option('view_as_chat')) {
// default is to download the file
if (!$label) {
$label = '[download=' . $origin . ']';
}
// this is the first contribution to the thread
if (!($comment = Comments::get_newest_for_anchor('article:' . $this->item['id']))) {
$fields = array();
$fields['anchor'] = 'article:' . $this->item['id'];
$fields['description'] = $label;
// this is a continuated contribution from this authenticated surfer
} elseif ($comment['type'] != 'notification' && Surfer::get_id() && (isset($comment['create_id']) && Surfer::get_id() == $comment['create_id'])) {
$comment['description'] .= BR . $label;
$fields = $comment;
// else process the contribution as a new comment
} else {
$fields = array();
$fields['anchor'] = 'article:' . $this->item['id'];
$fields['description'] = $label;
}
// only when comments are allowed
if (!Articles::has_option('no_comments', $this->anchor, $this->item)) {
Comments::post($fields);
}
// include flash videos in a regular page
} elseif ($origin && $label) {
$query[] = "description = '" . SQL::escape($this->item['description'] . ' ' . $label) . "'";
}
// suppress references to a deleted file
} elseif ($action == 'file:delete' && $origin) {
// suppress reference in main description field
$text = Codes::delete_embedded($this->item['description'], 'download', $origin);
$text = Codes::delete_embedded($text, 'embed', $origin);
$text = Codes::delete_embedded($text, 'file', $origin);
// save changes
$query[] = "description = '" . SQL::escape($text) . "'";
// append a reference to a new image to the description
} elseif ($action == 'image:create' && $origin) {
if (!Codes::check_embedded($this->item['description'], 'image', $origin)) {
// the overlay may prevent embedding
if (is_object($this->overlay) && !$this->overlay->should_embed_files()) {
} else {
// list has already started
if (preg_match('/\\[image=[^\\]]+?\\]\\s*$/', $this->item['description'])) {
$this->item['description'] .= ' [image=' . $origin . ']';
} else {
$this->item['description'] .= "\n\n" . '[image=' . $origin . ']';
}
$query[] = "description = '" . SQL::escape($this->item['description']) . "'";
}
}
// also use it as thumnail if none has been defined yet
if (!isset($this->item['thumbnail_url']) || !trim($this->item['thumbnail_url'])) {
include_once $context['path_to_root'] . 'images/images.php';
if (($image = Images::get($origin)) && ($url = Images::get_thumbnail_href($image))) {
$query[] = "thumbnail_url = '" . SQL::escape($url) . "'";
}
}
// refresh stamp only if image update occurs within 6 hours after last edition
if (SQL::strtotime($this->item['edit_date']) + 6 * 60 * 60 < time()) {
$silently = TRUE;
}
// suppress a reference to an image that has been deleted
} elseif ($action == 'image:delete' && $origin) {
// suppress reference in main description field
$query[] = "description = '" . SQL::escape(Codes::delete_embedded($this->item['description'], 'image', $origin)) . "'";
// suppress references as icon and thumbnail as well
include_once $context['path_to_root'] . 'images/images.php';
if ($image = Images::get($origin)) {
if ($url = Images::get_icon_href($image)) {
if ($this->item['icon_url'] == $url) {
$query[] = "icon_url = ''";
}
if ($this->item['thumbnail_url'] == $url) {
$query[] = "thumbnail_url = ''";
}
}
if ($url = Images::get_thumbnail_href($image)) {
if ($this->item['icon_url'] == $url) {
$query[] = "icon_url = ''";
}
if ($this->item['thumbnail_url'] == $url) {
$query[] = "thumbnail_url = ''";
}
}
}
// set an existing image as the article icon
} elseif ($action == 'image:set_as_icon' && $origin) {
include_once $context['path_to_root'] . 'images/images.php';
if ($image = Images::get($origin)) {
if ($url = Images::get_icon_href($image)) {
$query[] = "icon_url = '" . SQL::escape($url) . "'";
}
// also use it as thumnail if none has been defined yet
if (!(isset($this->item['thumbnail_url']) && trim($this->item['thumbnail_url'])) && ($url = Images::get_thumbnail_href($image))) {
$query[] = "thumbnail_url = '" . SQL::escape($url) . "'";
}
}
// set an existing image as the article thumbnail
} elseif ($action == 'image:set_as_thumbnail' && $origin) {
include_once $context['path_to_root'] . 'images/images.php';
if ($image = Images::get($origin)) {
// use the thumbnail for large files, or the image itself for smaller files
if ($image['image_size'] > $context['thumbnail_threshold']) {
$url = Images::get_thumbnail_href($image);
} else {
$url = Images::get_icon_href($image);
}
$query[] = "thumbnail_url = '" . SQL::escape($url) . "'";
} elseif ($origin) {
$query[] = "thumbnail_url = '" . SQL::escape($origin) . "'";
}
// do not remember minor changes
$silently = TRUE;
// append a new image, and set it as the article thumbnail
} elseif ($action == 'image:set_as_both' && $origin) {
if (!Codes::check_embedded($this->item['description'], 'image', $origin)) {
$query[] = "description = '" . SQL::escape($this->item['description'] . ' [image=' . $origin . ']') . "'";
}
include_once $context['path_to_root'] . 'images/images.php';
if ($image = Images::get($origin)) {
// use the thumbnail for large files, or the image itself for smaller files
if ($image['image_size'] > $context['thumbnail_threshold']) {
$url = Images::get_thumbnail_href($image);
} else {
$url = Images::get_icon_href($image);
}
$query[] = "thumbnail_url = '" . SQL::escape($url) . "'";
} elseif ($origin) {
$query[] = "thumbnail_url = '" . SQL::escape($origin) . "'";
}
// do not remember minor changes
$silently = TRUE;
// add a reference to a location in the article description
} elseif ($action == 'location:create' && $origin) {
if (!Codes::check_embedded($this->item['description'], 'location', $origin)) {
$query[] = "description = '" . SQL::escape($this->item['description'] . ' [location=' . $origin . ']') . "'";
}
// suppress a reference to a location that has been deleted
} elseif ($action == 'location:delete' && $origin) {
$query[] = "description = '" . SQL::escape(Codes::delete_embedded($this->item['description'], 'location', $origin)) . "'";
// add a reference to a new table in the article description
} elseif ($action == 'table:create' && $origin) {
if (!Codes::check_embedded($this->item['description'], 'table', $origin)) {
$query[] = "description = '" . SQL::escape($this->item['description'] . "\n" . '[table=' . $origin . ']' . "\n") . "'";
}
// suppress a reference to a table that has been deleted
} elseif ($action == 'table:delete' && $origin) {
$query[] = "description = '" . SQL::escape(Codes::delete_embedded($this->item['description'], 'table', $origin)) . "'";
}
// stamp the update
if (!$silently) {
$query[] = "edit_name='" . SQL::escape(Surfer::get_name()) . "'," . "edit_id=" . SQL::escape(Surfer::get_id()) . "," . "edit_address='" . SQL::escape(Surfer::get_email_address()) . "'," . "edit_action='" . SQL::escape($action) . "'," . "edit_date='" . gmstrftime('%Y-%m-%d %H:%M:%S') . "'";
}
// update the database
if (count($query)) {
$query = "UPDATE " . SQL::table_name('articles') . " SET " . implode(', ', $query) . " WHERE id = " . SQL::escape($this->item['id']);
SQL::query($query);
}
// add this page to the watch list of the contributor, on any action
if (Surfer::get_id()) {
Members::assign('article:' . $this->item['id'], 'user:'******'article:' . $this->item['id'], $this->item['active']);
// always clear the cache, even on no update
Articles::clear($this->item);
// get the parent
if (!$this->anchor) {
$this->anchor = Anchors::get($this->item['anchor']);
}
// propagate the touch upwards
if (is_object($this->anchor)) {
$this->anchor->touch('article:update', $this->item['id'], TRUE);
}
}
/**
* check if new links can be added
*
* This function returns TRUE if links can be added to some place,
* and FALSE otherwise.
*
* @param object an instance of the Anchor interface, if any
* @param array a set of item attributes, if any
* @param string the type of item, e.g., 'section'
* @return boolean TRUE or FALSE
*/
public static function allow_creation($item = NULL, $anchor = NULL, $variant = NULL)
{
global $context;
// backward compatibility, reverse parameters :
// $anchor is always a object and $item a array
if (is_object($item) || is_array($anchor)) {
$permute = $anchor;
$anchor = $item;
$item = $permute;
}
// guess the variant
if (!$variant) {
// most frequent case
if (isset($item['id'])) {
$variant = 'article';
} elseif (is_object($anchor)) {
$variant = $anchor->get_type();
} else {
return FALSE;
}
}
// only in articles
if ($variant == 'article') {
// 'no_links' option
if (Articles::has_option('no_links', $anchor, $item)) {
return FALSE;
}
// other containers
} else {
// links have to be activated
if (isset($item['options']) && is_string($item['options']) && preg_match('/\\bwith_links\\b/i', $item['options'])) {
} elseif (!isset($item['id']) && is_object($anchor) && $anchor->has_option('with_links', FALSE)) {
} else {
return FALSE;
}
}
// surfer is an associate
if (Surfer::is_associate()) {
return TRUE;
}
// submissions have been disallowed
if (isset($context['users_without_submission']) && $context['users_without_submission'] == 'Y') {
return FALSE;
}
// only in articles
if ($variant == 'article') {
// surfer owns this item, or the anchor
if (Articles::is_owned($item, $anchor)) {
return TRUE;
}
// surfer is an editor, and the page is not private
if (isset($item['active']) && $item['active'] != 'N' && Articles::is_assigned($item['id'])) {
return TRUE;
}
// only in sections
} elseif ($variant == 'section') {
// surfer owns this item, or the anchor
if (Sections::is_owned($item, $anchor, TRUE)) {
return TRUE;
}
// surfer is an editor, and the section is not private
if (isset($item['active']) && $item['active'] != 'N' && Sections::is_assigned($item['id'])) {
return TRUE;
}
}
// surfer is an editor, and container is not private
if (isset($item['active']) && $item['active'] != 'N' && is_object($anchor) && $anchor->is_assigned()) {
return TRUE;
}
if (!isset($item['id']) && is_object($anchor) && !$anchor->is_hidden() && $anchor->is_assigned()) {
return TRUE;
}
// item has been locked
if (isset($item['locked']) && $item['locked'] == 'Y') {
return FALSE;
}
// anchor has been locked --only used when there is no item provided
if (!isset($item['id']) && is_object($anchor) && $anchor->has_option('locked')) {
return FALSE;
}
// surfer is an editor (and item has not been locked)
if ($variant == 'article' && isset($item['id']) && Articles::is_assigned($item['id'])) {
return TRUE;
}
if ($variant == 'section' && isset($item['id']) && Sections::is_assigned($item['id'])) {
return TRUE;
}
if (is_object($anchor) && $anchor->is_assigned()) {
return TRUE;
}
// container is hidden
if (isset($item['active']) && $item['active'] == 'N') {
return FALSE;
}
if (is_object($anchor) && $anchor->is_hidden()) {
return FALSE;
}
// authenticated members and subscribers are allowed to add links
if (Surfer::is_logged()) {
return TRUE;
}
// container is restricted
if (isset($item['active']) && $item['active'] == 'R') {
return FALSE;
}
if (is_object($anchor) && !$anchor->is_public()) {
return FALSE;
}
// anonymous contributions are allowed for articles
if ($variant == 'article') {
if (isset($item['options']) && preg_match('/\\banonymous_edit\\b/i', $item['options'])) {
return TRUE;
}
if (is_object($anchor) && $anchor->has_option('anonymous_edit')) {
return TRUE;
}
}
// the default is to not allow for new links
return FALSE;
}
/**
* layout the newest articles
*
* caution: this function also updates page title directly, and this makes its call non-cacheable
*
* @param array the article
* @return string the rendered text
**/
function layout_newest($item)
{
global $context;
// get the related overlay, if any
$overlay = Overlay::load($item, 'article:' . $item['id']);
// get the anchor
$anchor = Anchors::get($item['anchor']);
// the url to view this item
$url = Articles::get_permalink($item);
// reset the rendering engine between items
Codes::initialize($url);
// build a title
if (is_object($overlay)) {
$title = Codes::beautify_title($overlay->get_text('title', $item));
} else {
$title = Codes::beautify_title($item['title']);
}
// title prefix & suffix
$text = $prefix = $suffix = '';
// flag articles updated recently
if ($context['site_revisit_after'] < 1) {
$context['site_revisit_after'] = 2;
}
$context['fresh'] = gmstrftime('%Y-%m-%d %H:%M:%S', mktime(0, 0, 0, date("m"), date("d") - $context['site_revisit_after'], date("Y")));
// link to permalink
if (Surfer::is_empowered()) {
$title = Skin::build_box_title($title, $url, i18n::s('Permalink'));
}
// signal articles to be published
if ($item['publish_date'] <= NULL_DATE) {
$prefix .= DRAFT_FLAG;
} else {
if ($item['publish_date'] > NULL_DATE && $item['publish_date'] > $context['now']) {
$prefix .= DRAFT_FLAG;
}
}
// signal restricted and private articles
if ($item['active'] == 'N') {
$prefix .= PRIVATE_FLAG . ' ';
} elseif ($item['active'] == 'R') {
$prefix .= RESTRICTED_FLAG . ' ';
}
// signal locked articles
if (isset($item['locked']) && $item['locked'] == 'Y' && Articles::is_owned($item, $anchor)) {
$suffix .= LOCKED_FLAG;
}
// flag expired article
if ($item['expiry_date'] > NULL_DATE && $item['expiry_date'] <= $context['now']) {
$suffix .= EXPIRED_FLAG;
}
// update page title directly
$text .= Skin::build_block($prefix . $title . $suffix, 'title');
// if this article has a specific icon, use it
if ($item['icon_url']) {
$icon = $item['icon_url'];
} elseif ($item['anchor'] && ($anchor = Anchors::get($item['anchor']))) {
$icon = $anchor->get_icon_url();
}
// if we have a valid image
if (preg_match('/(.gif|.jpg|.jpeg|.png)$/i', $icon)) {
// fix relative path
if (!preg_match('/^(\\/|http:|https:|ftp:)/', $icon)) {
$icon = $context['url_to_root'] . $icon;
}
// flush the image on the right
$text .= '<img src="' . $icon . '" class="right_image" alt="" />';
}
// article rating, if the anchor allows for it
if (!is_object($anchor) || !$anchor->has_option('without_rating')) {
// report on current rating
$label = '';
if ($item['rating_count']) {
$label = Skin::build_rating_img((int) round($item['rating_sum'] / $item['rating_count'])) . ' ';
}
$label .= i18n::s('Rate this page');
// allow for rating
$text .= Skin::build_link(Articles::get_url($item['id'], 'like'), $label, 'basic');
}
// the introduction text, if any
if (is_object($overlay)) {
$text .= Skin::build_block($overlay->get_text('introduction', $item), 'introduction');
} else {
$text .= Skin::build_block($item['introduction'], 'introduction');
}
// insert overlay data, if any
if (is_object($overlay)) {
$text .= $overlay->get_text('view', $item);
}
// the beautified description, which is the actual page body
if ($item['description']) {
// use adequate label
if (is_object($overlay) && ($label = $overlay->get_label('description'))) {
$text .= Skin::build_block($label, 'title');
}
$text .= Skin::build_block($item['description'], 'description', '', $item['options']);
}
//
// list related files
//
// if this surfer is an editor of this article, show hidden files as well
if (Articles::is_assigned($item['id']) || is_object($anchor) && $anchor->is_assigned()) {
Surfer::empower();
}
// build a complete box
$box['bar'] = array();
$box['text'] = '';
// count the number of files in this article
if ($count = Files::count_for_anchor('article:' . $item['id'])) {
if ($count > 20) {
$box['bar'] += array('_count' => sprintf(i18n::ns('%d file', '%d files', $count), $count));
}
// list files by date (default) or by title (option files_by_title)
if (Articles::has_option('files_by', $anchor, $item) == 'title') {
$items = Files::list_by_title_for_anchor('article:' . $item['id'], 0, FILES_PER_PAGE, 'article:' . $item['id']);
} else {
$items = Files::list_by_date_for_anchor('article:' . $item['id'], 0, FILES_PER_PAGE, 'article:' . $item['id']);
}
if (is_array($items)) {
$box['text'] .= Skin::build_list($items, 'decorated');
}
// navigation commands for files
$prefix = Articles::get_url($item['id'], 'navigate', 'files');
$box['bar'] += Skin::navigate($url, $prefix, $count, FILES_PER_PAGE, 0);
// the command to post a new file, if allowed
if (Files::allow_creation($item, $anchor, 'article')) {
$link = 'files/edit.php?anchor=' . urlencode('article:' . $item['id']);
$box['bar'] += array($link => i18n::s('Add a file'));
}
if (is_array($box['bar'])) {
$box['text'] .= Skin::build_list($box['bar'], 'menu_bar');
}
}
// actually render the html for this box
if ($box['text']) {
$text .= Skin::build_box(i18n::s('Files'), $box['text'], 'header1', 'files');
}
//
// bottom page menu
//
// discuss this page, if the index page can be commented, and comments are accepted at the article level
if (Comments::allow_creation($item, $anchor)) {
$this->menu[] = Skin::build_link(Comments::get_url('article:' . $item['id'], 'comment'), i18n::s('Post a comment'), 'span');
}
// info on related comments
if ($count = Comments::count_for_anchor('article:' . $item['id'])) {
$this->menu[] = Skin::build_link(Comments::get_url('article:' . $item['id'], 'list'), sprintf(i18n::ns('%d comment', '%d comments', $count), $count), 'span');
}
// new links are accepted at the index page and at the article level
if (Links::allow_trackback()) {
$this->menu[] = Skin::build_link('links/trackback.php?anchor=' . urlencode('article:' . $item['id']), i18n::s('Reference this page'), 'span');
}
// info on related links
if ($count = Links::count_for_anchor('article:' . $item['id'])) {
$this->menu[] = Skin::build_link($url . '#_attachments', sprintf(i18n::ns('%d link', '%d links', $count), $count), 'span');
}
// new files are accepted at the index page and at the article level
if (is_object($anchor) && $anchor->has_option('with_files') && !($anchor->has_option('no_files') || preg_match('/\\bno_files\\b/i', $item['options']))) {
// add a file
if (Files::allow_creation($item, $anchor, 'article')) {
if ($context['with_friendly_urls'] == 'Y') {
$link = 'files/edit.php/article/' . $item['id'];
} else {
$link = 'files/edit.php?anchor=' . urlencode('article:' . $item['id']);
}
$this->menu[] = Skin::build_link($link, i18n::s('Add a file'), 'span');
}
}
// modify this page
if (Surfer::is_empowered()) {
$this->menu[] = Skin::build_link(Articles::get_url($item['id'], 'edit'), i18n::s('Edit'), 'span');
}
// view permalink
if (Surfer::is_empowered()) {
$this->menu[] = Skin::build_link($url, i18n::s('Permalink'), 'span');
}
// insert overlay data, if any
if (is_object($overlay)) {
$text .= $overlay->get_text('trailer', $item);
}
// add trailer information from this item, if any
if (isset($item['trailer']) && trim($item['trailer'])) {
$text .= Codes::beautify($item['trailer']);
}
// returned the formatted content
return $text;
}
//
// links attached to this article
//
// the list of related links if not at another follow-up page
if (!$zoom_type || $zoom_type == 'links') {
// build a complete box
$box = array('bar' => array(), 'text' => '');
// a navigation bar for these links
if ($count = Links::count_for_anchor('article:' . $item['id'])) {
$attachments_count += $count;
if ($count > 20) {
$box['bar'] += array('_count' => sprintf(i18n::ns('%d link', '%d links', $count), $count));
}
// list links by date (default) or by title (option links_by_title)
$offset = ($zoom_index - 1) * LINKS_PER_PAGE;
if (Articles::has_option('links_by_title', $anchor, $item)) {
$items = Links::list_by_title_for_anchor('article:' . $item['id'], $offset, LINKS_PER_PAGE);
} else {
$items = Links::list_by_date_for_anchor('article:' . $item['id'], $offset, LINKS_PER_PAGE);
}
// actually render the html
if (is_array($items)) {
$box['text'] .= Skin::build_list($items, 'decorated');
} elseif (is_string($items)) {
$box['text'] .= $items;
}
// navigation commands for links
$home = Articles::get_permalink($item);
$prefix = Articles::get_url($item['id'], 'navigate', 'links');
$box['bar'] += Skin::navigate($home, $prefix, $count, LINKS_PER_PAGE, $zoom_index);
// new links are allowed
/**
* check if new files can be added
*
* This function returns TRUE if files can be added to some place,
* and FALSE otherwise.
*
* @param array a set of item attributes, if any
* @param object an instance of the Anchor interface, if any
* @param string the type of item, e.g., 'article' or 'section'
* @return boolean TRUE or FALSE
*/
public static function allow_creation($item = NULL, $anchor = NULL, $variant = NULL)
{
global $context;
// guess the variant
if (!$variant) {
// most frequent case
if (isset($item['id'])) {
$variant = 'article';
} elseif (is_object($anchor)) {
$variant = $anchor->get_type();
} else {
return FALSE;
}
}
// attach a file to an article
if ($variant == 'article') {
// 'no initial upload' option
if (!isset($item['id']) && Articles::has_option('no_initial_upload', $anchor, $item)) {
return FALSE;
}
// 'no files' option
if (Articles::has_option('no_files', $anchor, $item)) {
return FALSE;
}
// attach a file to a user profile
} elseif ($variant == 'user') {
// associates can always proceed
if (Surfer::is_associate()) {
} elseif (!is_object($anchor) || !Surfer::get_id()) {
return FALSE;
} elseif ($anchor->get_reference() != 'user:'******'options']) && is_string($item['options']) && preg_match('/\\bwith_files\\b/i', $item['options'])) {
} elseif (!isset($item['id']) && is_object($anchor) && $anchor->has_option('with_files', FALSE)) {
} else {
return FALSE;
}
}
// surfer is not allowed to upload a file
if (!Surfer::may_upload()) {
return FALSE;
}
// surfer is an associate
if (Surfer::is_associate()) {
return TRUE;
}
// submissions have been disallowed
if (isset($context['users_without_submission']) && $context['users_without_submission'] == 'Y') {
return FALSE;
}
// only in articles
if ($variant == 'article') {
// surfer owns this item, or the anchor
if (Articles::is_owned($item, $anchor)) {
return TRUE;
}
// surfer is an editor, and the page is not private
if (isset($item['active']) && $item['active'] != 'N' && Articles::is_assigned($item['id'])) {
return TRUE;
}
// only in sections
} elseif ($variant == 'section') {
// surfer owns this item, or the anchor
if (Sections::is_owned($item, $anchor, TRUE)) {
return TRUE;
}
// surfer is an editor, and the section is not private
if (isset($item['active']) && $item['active'] != 'N' && Sections::is_assigned($item['id'])) {
return TRUE;
}
}
// surfer is an editor, and container is not private
if (isset($item['active']) && $item['active'] != 'N' && is_object($anchor) && $anchor->is_assigned()) {
return TRUE;
}
if (!isset($item['id']) && is_object($anchor) && !$anchor->is_hidden() && $anchor->is_assigned()) {
return TRUE;
}
// item has been locked
if (isset($item['locked']) && $item['locked'] == 'Y') {
return FALSE;
}
// anchor has been locked --only used when there is no item provided
if (!isset($item['id']) && is_object($anchor) && $anchor->has_option('locked')) {
return FALSE;
}
// surfer is an editor (and item has not been locked)
if ($variant == 'article' && isset($item['id']) && Articles::is_assigned($item['id'])) {
return TRUE;
}
if ($variant == 'section' && isset($item['id']) && Sections::is_assigned($item['id'])) {
return TRUE;
}
if (is_object($anchor) && $anchor->is_assigned()) {
return TRUE;
}
// container is hidden
if (isset($item['active']) && $item['active'] == 'N') {
return FALSE;
}
if (is_object($anchor) && $anchor->is_hidden()) {
return FALSE;
}
// authenticated members and subscribers are allowed to add files
if (Surfer::is_logged()) {
return TRUE;
}
// container is restricted
if (isset($item['active']) && $item['active'] == 'R') {
return FALSE;
}
if (is_object($anchor) && !$anchor->is_public()) {
return FALSE;
}
// anonymous contributions are allowed for articles and for sections
if ($variant == 'article' || $variant == 'section') {
if (isset($item['options']) && preg_match('/\\banonymous_edit\\b/i', $item['options'])) {
return TRUE;
}
if (is_object($anchor) && $anchor->has_option('anonymous_edit')) {
return TRUE;
}
}
// the default is to not allow for new files
return FALSE;
}
/**
* list articles
*
* @param resource the SQL result
* @return a string to be displayed
*
* @see layouts/layout.php
**/
function layout($result)
{
global $context;
// we return some text
$text = '';
// empty list
if (!SQL::count($result)) {
return $text;
}
// no hovering label
$href_title = '';
// we build an array for the skin::build_tabs() function
$panels = array();
// process all items in the list
while ($item = SQL::fetch($result)) {
// get the main anchor
$anchor = Anchors::get($item['anchor']);
// get the related overlay, if any
$overlay = Overlay::load($item, 'article:' . $item['id']);
// panel content
$text = '';
// insert anchor prefix
if (is_object($anchor)) {
$text .= $anchor->get_prefix();
}
// the introduction text, if any
if (is_object($overlay)) {
$text .= Skin::build_block($overlay->get_text('introduction', $item), 'introduction');
} elseif (isset($item['introduction']) && trim($item['introduction'])) {
$text .= Skin::build_block($item['introduction'], 'introduction');
}
// get text related to the overlay, if any
if (is_object($overlay)) {
$text .= $overlay->get_text('view', $item);
}
// filter description, if necessary
if (is_object($overlay)) {
$description = $overlay->get_text('description', $item);
} else {
$description = $item['description'];
}
// the beautified description, which is the actual page body
if ($description) {
// use adequate label
if (is_object($overlay) && ($label = $overlay->get_label('description'))) {
$text .= Skin::build_block($label, 'title');
}
// beautify the target page
$text .= Skin::build_block($description, 'description', '', $item['options']);
}
// list files only to people able to change the page
if (Articles::allow_modification($item, $anchor)) {
$embedded = NULL;
} else {
$embedded = Codes::list_embedded($item['description']);
}
// build a complete box
$box = array('bar' => array(), 'text' => '');
// count the number of files in this article
if ($count = Files::count_for_anchor('article:' . $item['id'], FALSE, $embedded)) {
if ($count > 20) {
$box['bar'] += array('_count' => sprintf(i18n::ns('%d file', '%d files', $count), $count));
}
// list files by date (default) or by title (option files_by_title)
$offset = ($zoom_index - 1) * FILES_PER_PAGE;
if (Articles::has_option('files_by', $anchor, $item) == 'title') {
$items = Files::list_by_title_for_anchor('article:' . $item['id'], 0, 300, 'article:' . $item['id'], $embedded);
} else {
$items = Files::list_by_date_for_anchor('article:' . $item['id'], 0, 300, 'article:' . $item['id'], $embedded);
}
// actually render the html
if (is_array($items)) {
$box['text'] .= Skin::build_list($items, 'decorated');
} elseif (is_string($items)) {
$box['text'] .= $items;
}
// the command to post a new file
if (Files::allow_creation($item, $anchor, 'article')) {
Skin::define_img('FILES_UPLOAD_IMG', 'files/upload.gif');
$box['bar'] += array('files/edit.php?anchor=' . urlencode('article:' . $item['id']) => FILES_UPLOAD_IMG . i18n::s('Add a file'));
}
}
// some files have been attached to this page
if ($page == 1 && $count > 1) {
// the command to download all files
$link = 'files/fetch_all.php?anchor=' . urlencode('article:' . $item['id']);
if ($count > 20) {
$label = i18n::s('Zip 20 first files');
} else {
$label = i18n::s('Zip all files');
}
$box['bar'] += array($link => $label);
}
// there is some box content
if ($box['text']) {
$text .= Skin::build_content('files', i18n::s('Files'), $box['text'], $box['bar']);
}
// list of comments
$title_label = '';
if (is_object($anchor)) {
$title_label = ucfirst($overlay->get_label('list_title', 'comments'));
}
if (!$title_label) {
$title_label = i18n::s('Comments');
}
// no layout yet
$layout = NULL;
// label to create a comment
$add_label = '';
if (is_object($overlay)) {
$add_label = $overlay->get_label('new_command', 'comments');
}
if (!$add_label) {
$add_label = i18n::s('Post a comment');
}
// get a layout from anchor
$layout =& Comments::get_layout($anchor, $item);
// provide author information to layout
if (is_object($layout) && isset($item['create_id']) && $item['create_id']) {
$layout->set_focus('user:'******'create_id']);
}
// the maximum number of comments per page
if (is_object($layout)) {
$items_per_page = $layout->items_per_page();
} else {
$items_per_page = COMMENTS_PER_PAGE;
}
// the first comment to list
$offset = 0;
if (is_object($layout) && method_exists($layout, 'set_offset')) {
$layout->set_offset($offset);
}
// build a complete box
$box = array('bar' => array(), 'prefix_bar' => array(), 'text' => '');
// feed the wall
if (Comments::allow_creation($item, $anchor)) {
$box['text'] .= Comments::get_form('article:' . $item['id']);
}
// a navigation bar for these comments
if ($count = Comments::count_for_anchor('article:' . $item['id'])) {
if ($count > 20) {
$box['bar'] += array('_count' => sprintf(i18n::ns('%d comment', '%d comments', $count), $count));
}
// list comments by date
$items = Comments::list_by_date_for_anchor('article:' . $item['id'], $offset, $items_per_page, $layout, TRUE);
// actually render the html
if (is_array($items)) {
$box['text'] .= Skin::build_list($items, 'rows');
} elseif (is_string($items)) {
$box['text'] .= $items;
}
// navigation commands for comments
$prefix = Comments::get_url('article:' . $item['id'], 'navigate');
$box['bar'] = array_merge($box['bar'], Skin::navigate(NULL, $prefix, $count, $items_per_page, $zoom_index));
}
// ensure that the surfer can change content
if (Articles::allow_modification($item, $anchor)) {
// view or modify this section
$menu = array();
$box['bar'] += array(Articles::get_permalink($item) => i18n::s('View the page'));
if (!is_object($overlay) || !($label = $overlay->get_label('edit_command', 'articles'))) {
$label = i18n::s('Edit this page');
}
$box['bar'] += array(Articles::get_url($item['id'], 'edit') => $label);
}
// show commands
if (count($box['bar'])) {
// commands before the box
$box['text'] = Skin::build_list($box['prefix_bar'], 'menu_bar') . $box['text'];
// append the menu bar at the end
$box['text'] .= Skin::build_list($box['bar'], 'menu_bar');
}
// build a box
if ($box['text']) {
// put a title if there are other titles or if more than 2048 chars
$title = '';
if (preg_match('/(<h1|<h2|<h3|<table|\\[title|\\[subtitle)/i', $context['text'] . $text) || strlen($context['text'] . $text) > 2048) {
$title = $title_label;
}
// insert a full box
$text .= Skin::build_box($title, $box['text'], 'header1', 'comments');
}
// assemble the full panel
$panels[] = array('att' . $item['id'], ucfirst(Skin::strip($item['title'], 30)), 'atc' . $item['id'], $text);
}
// there is some box content
if (trim($box['text'])) {
$text .= $box['text'];
}
// format tabs
$text = Skin::build_tabs($panels);
// end of processing
SQL::free($result);
return $text;
}
Safe::header('Status: 401 Unauthorized', TRUE, 401);
Logger::error(i18n::s('You are not allowed to perform this operation.'));
// maybe this article cannot be modified anymore
} elseif (isset($item['locked']) && $item['locked'] == 'Y' && !Surfer::is_empowered()) {
Safe::header('Status: 401 Unauthorized', TRUE, 401);
Logger::error(i18n::s('This page has been locked.'));
// do the job
} else {
// attributes to change
$fields = array();
$fields['id'] = $item['id'];
$fields['anchor'] = $destination->get_reference();
// do the change
if (Articles::put_attributes($fields)) {
// only when comments are allowed
if (!Articles::has_option('no_comments', $anchor, $item)) {
// add a comment to make the move explicit
include_once $context['path_to_root'] . 'comments/comments.php';
$fields = array();
$fields['anchor'] = 'article:' . $item['id'];
$fields['description'] = sprintf(i18n::s('Moved by %s from %s to %s'), Surfer::get_name(), $anchor->get_title(), $destination->get_title());
Comments::post($fields);
}
// update previous container
Cache::clear($anchor->get_reference());
// switch to the updated page
Safe::redirect(Articles::get_permalink($item));
}
}
// render the skin
render_skin();
/**
* check if an article can be modified
*
* This function returns TRUE if the page can be modified,
* and FALSE otherwise.
*
* @param array a set of item attributes, aka, the target article
* @param object an instance of the Anchor interface
* @return TRUE or FALSE
*/
public static function allow_modification($item, $anchor)
{
global $context;
// sanity check
if (!isset($item['id']) && !$anchor) {
return FALSE;
}
// surfer is an associate
if (Surfer::is_associate()) {
return TRUE;
}
// ensure access rights
if (!Articles::allow_access($item, $anchor)) {
return FALSE;
}
// submissions have been disallowed
if (isset($context['users_without_submission']) && $context['users_without_submission'] == 'Y') {
return FALSE;
}
// surfer owns the container or the article
if (Articles::is_owned($item, $anchor)) {
return TRUE;
}
// allow section editors to manage content, except on private sections
if (Surfer::is_member() && is_object($anchor) && !$anchor->is_hidden() && $anchor->is_assigned()) {
return TRUE;
}
// allow page editors to manage content, except on private page
if (Surfer::is_member() && $item['active'] != 'N' && Articles::is_assigned($item['id'])) {
return TRUE;
}
// article has been locked
if (isset($item['locked']) && $item['locked'] == 'Y') {
return FALSE;
}
// maybe this anonymous surfer is allowed to handle this item
if (isset($item['handle']) && Surfer::may_handle($item['handle'])) {
return TRUE;
}
// community wiki
if (Surfer::is_logged() && Articles::has_option('members_edit', $anchor, $item)) {
return TRUE;
}
// public wiki
if (Articles::has_option('anonymous_edit', $anchor, $item)) {
return TRUE;
}
// default case
return FALSE;
}
/**
* list articles as a daily weblog do
*
* @param resource the SQL result
* @return string the rendered text
*
* @see layouts/layout.php
**/
function layout($result)
{
global $context;
// we return some text
$text = '';
// empty list
if (!SQL::count($result)) {
if (Surfer::is_associate()) {
$text .= '<p>' . sprintf(i18n::s('Use the %s to populate this server.'), Skin::build_link('help/populate.php', i18n::s('Content Assistant'), 'shortcut')) . '</p>';
}
return $text;
}
// build a list of articles
include_once $context['path_to_root'] . 'comments/comments.php';
include_once $context['path_to_root'] . 'links/links.php';
while ($item = SQL::fetch($result)) {
// three components per box
$box = array();
$box['date'] = '';
$box['title'] = '';
$box['content'] = '';
// get the related overlay, if any
$overlay = Overlay::load($item, 'article:' . $item['id']);
// get the anchor
$anchor = Anchors::get($item['anchor']);
// permalink
$url = Articles::get_permalink($item);
// make a live title
if (is_object($overlay)) {
$box['title'] .= Codes::beautify_title($overlay->get_text('title', $item));
} else {
$box['title'] .= Codes::beautify_title($item['title']);
}
// make a clickable title
$box['title'] = Skin::build_link($url, $box['title'], 'basic');
// signal restricted and private articles
if ($item['active'] == 'N') {
$box['title'] = PRIVATE_FLAG . $box['title'];
} elseif ($item['active'] == 'R') {
$box['title'] = RESTRICTED_FLAG . $box['title'];
}
// flag articles updated recently
if ($item['expiry_date'] > NULL_DATE && $item['expiry_date'] <= $context['now']) {
$box['title'] .= EXPIRED_FLAG;
} elseif ($item['create_date'] >= $context['fresh']) {
$box['title'] .= NEW_FLAG;
} elseif ($item['edit_date'] >= $context['fresh']) {
$box['title'] .= UPDATED_FLAG;
}
// what's the date of publication?
if (isset($item['publish_date']) && $item['publish_date'] > NULL_DATE) {
$box['date'] .= Skin::build_date($item['publish_date'], 'publishing');
}
// the icon to put aside - never use anchor images
if ($item['icon_url']) {
$box['content'] .= '<a href="' . $context['url_to_root'] . $url . '"><img src="' . $item['icon_url'] . '" class="left_image" alt="" /></a>';
}
// details
$details = array();
// rating
if ($item['rating_count'] && !(is_object($anchor) && $anchor->has_option('without_rating'))) {
$details[] = Skin::build_link(Articles::get_url($item['id'], 'like'), Skin::build_rating_img((int) round($item['rating_sum'] / $item['rating_count'])), 'basic');
}
// show details
if (count($details)) {
$box['content'] .= '<p class="details">' . implode(' ~ ', $details) . '</p>' . "\n";
}
// list categories by title, if any
if ($items = Members::list_categories_by_title_for_member('article:' . $item['id'], 0, 7, 'raw')) {
$tags = array();
foreach ($items as $id => $attributes) {
// add background color to distinguish this category against others
if (isset($attributes['background_color']) && $attributes['background_color']) {
$attributes['title'] = '<span style="background-color: ' . $attributes['background_color'] . '; padding: 0 3px 0 3px;">' . $attributes['title'] . '</span>';
}
$tags[] = Skin::build_link(Categories::get_permalink($attributes), $attributes['title'], 'basic');
}
$box['content'] .= '<p class="tags">' . implode(' ', $tags) . '</p>';
}
// the introduction text, if any
if (is_object($overlay)) {
$box['content'] .= Skin::build_block($overlay->get_text('introduction', $item), 'introduction');
} else {
$box['content'] .= Skin::build_block($item['introduction'], 'introduction');
}
// insert overlay data, if any
if (is_object($overlay)) {
$box['content'] .= $overlay->get_text('list', $item);
}
// the description
$box['content'] .= Skin::build_block($item['description'], 'description', '', $item['options']);
// a compact list of attached files
if ($count = Files::count_for_anchor('article:' . $item['id'])) {
// list files by date (default) or by title (option files_by_title)
if (Articles::has_option('files_by', $anchor, $item) == 'title') {
$items = Files::list_by_title_for_anchor('article:' . $item['id'], 0, FILES_PER_PAGE, 'compact');
} else {
$items = Files::list_by_date_for_anchor('article:' . $item['id'], 0, FILES_PER_PAGE, 'compact');
}
if (is_array($items)) {
$items = Skin::build_list($items, 'compact');
}
if ($items) {
$box['content'] .= Skin::build_box(i18n::s('Files'), $items, 'header2');
}
}
// build a menu
$menu = array();
// read the article
$menu[] = Skin::build_link($url, i18n::s('Permalink'), 'span');
// info on related files
if ($count) {
$menu[] = Skin::build_link($url . '#_attachments', sprintf(i18n::ns('%d file', '%d files', $count), $count), 'span');
}
// info on related comments
if ($count = Comments::count_for_anchor('article:' . $item['id'])) {
$menu[] = Skin::build_link(Comments::get_url('article:' . $item['id'], 'list'), sprintf(i18n::ns('%d comment', '%d comments', $count), $count), 'span');
}
// comment
if (Comments::allow_creation($item, $anchor)) {
$menu[] = Skin::build_link(Comments::get_url('article:' . $item['id'], 'comment'), i18n::s('Discuss'), 'span');
}
// info on related links
if ($count = Links::count_for_anchor('article:' . $item['id'], TRUE)) {
$menu[] = Skin::build_link($url . '#_attachments', sprintf(i18n::ns('%d link', '%d links', $count), $count), 'span');
}
// trackback
if (Links::allow_trackback()) {
$menu[] = Skin::build_link('links/trackback.php?anchor=' . urlencode('article:' . $item['id']), i18n::s('Reference this page'), 'span');
}
// a menu bar
if (count($menu)) {
$box['content'] .= '<div class="menu_bar" style="clear: left;">' . MENU_PREFIX . implode(MENU_SEPARATOR, $menu) . MENU_SUFFIX . "</div>\n";
}
// build a simple box for this post
$text .= '<div class="post">' . '<div class="date">' . $box['date'] . '</div>' . '<h2><span>' . $box['title'] . '</span></h2>' . '<div class="content">' . $box['content'] . '</div>' . '</div>';
}
// end of processing
SQL::free($result);
return $text;
}
/**
* check if new images can be added
*
* This function returns TRUE if images can be added to some place,
* and FALSE otherwise.
*
* @param object an instance of the Anchor interface, if any
* @param array a set of item attributes, if any
* @param string the type of item, e.g., 'section'
* @return TRUE or FALSE
*/
public static function allow_creation($item = NULL, $anchor = NULL, $variant = NULL)
{
global $context;
// backward compatibility, reverse parameters :
// $anchor is always a object and $item a array
if (is_object($item) || is_array($anchor)) {
$permute = $anchor;
$anchor = $item;
$item = $permute;
}
// guess the variant
if (!$variant) {
// most frequent case
if (isset($item['id'])) {
$variant = 'article';
} elseif (is_object($anchor)) {
$variant = $anchor->get_type();
} else {
return FALSE;
}
}
// only in articles
if ($variant == 'article') {
// 'no images' option
if (Articles::has_option('no_images', $anchor, $item)) {
return FALSE;
}
// other containers
} else {
// in item
if (isset($item['options']) && is_string($item['options']) && preg_match('/\\bno_images\\b/i', $item['options'])) {
return FALSE;
}
// in container
if (is_object($anchor) && $anchor->has_option('no_images', FALSE)) {
return FALSE;
}
}
// surfer is not allowed to upload a file
if (!Surfer::may_upload()) {
return FALSE;
}
// surfer is an associate
if (Surfer::is_associate()) {
return TRUE;
}
// submissions have been disallowed
if (isset($context['users_without_submission']) && $context['users_without_submission'] == 'Y') {
return FALSE;
}
// only in articles
if ($variant == 'article') {
// surfer is entitled to change content
if (Articles::allow_modification($item, $anchor)) {
return TRUE;
}
// surfer is an editor, and the page is not private
if (isset($item['active']) && $item['active'] != 'N' && Articles::is_assigned($item['id'])) {
return TRUE;
}
if (is_object($anchor) && !$anchor->is_hidden() && $anchor->is_assigned()) {
return TRUE;
}
// only in iles
} elseif ($variant == 'file') {
// surfer owns the anchor
if (is_object($anchor) && $anchor->is_owned()) {
return TRUE;
}
// only in sections
} elseif ($variant == 'section') {
// surfer is entitled to change content
if (Sections::allow_modification($item, $anchor)) {
return TRUE;
}
// only in user profiles
} elseif ($variant == 'user') {
// the item is anchored to the profile of this member
if (Surfer::get_id() && is_object($anchor) && !strcmp($anchor->get_reference(), 'user:'******'id']) && Surfer::is($item['id'])) {
return TRUE;
}
}
// item has been locked
if (isset($item['locked']) && $item['locked'] == 'Y') {
return FALSE;
}
// anchor has been locked --only used when there is no item provided
if (!isset($item['id']) && is_object($anchor) && $anchor->has_option('locked')) {
return FALSE;
}
// not for subscribers
if (Surfer::is_member()) {
// surfer is an editor (and item has not been locked)
if ($variant == 'article' && isset($item['id']) && Articles::is_assigned($item['id'])) {
return TRUE;
}
// surfer is assigned to parent container
if (is_object($anchor) && $anchor->is_assigned()) {
return TRUE;
}
}
// container is hidden
if (isset($item['active']) && $item['active'] == 'N') {
return FALSE;
}
if (is_object($anchor) && $anchor->is_hidden()) {
return FALSE;
}
// authenticated members are allowed to add images to pages
if ($variant == 'article' && Surfer::is_logged()) {
return TRUE;
}
// container is restricted
if (isset($item['active']) && $item['active'] == 'R') {
return FALSE;
}
if (is_object($anchor) && !$anchor->is_public()) {
return FALSE;
}
// anonymous contributions are allowed for articles
if ($variant == 'article') {
if (isset($item['options']) && preg_match('/\\banonymous_edit\\b/i', $item['options'])) {
return TRUE;
}
if (is_object($anchor) && $anchor->has_option('anonymous_edit')) {
return TRUE;
}
}
// the default is to not allow for new images
return FALSE;
}
// look for the action
$action = NULL;
if (isset($_REQUEST['action'])) {
$action = $_REQUEST['action'];
} elseif (isset($context['arguments'][1])) {
$action = $context['arguments'][1];
}
$action = strip_tags($action);
// maybe this anonymous surfer is allowed to handle this item
if (isset($item['handle']) && Surfer::may_handle($item['handle'])) {
Surfer::empower();
} elseif (isset($item['id']) && Articles::is_assigned($item['id']) || is_object($anchor) && $anchor->is_assigned()) {
Surfer::empower();
} elseif (Articles::has_option('anonymous_edit', $anchor, $item)) {
Surfer::empower();
} elseif (Surfer::is_member() && Articles::has_option('members_edit', $anchor, $item)) {
Surfer::empower();
}
// associates and editors can do what they want
if (Surfer::is_empowered()) {
$permitted = TRUE;
} else {
$permitted = FALSE;
}
// no not kill script validation
if (isset($_SERVER['REQUEST_METHOD']) && $_SERVER['REQUEST_METHOD'] == 'HEAD') {
return;
}
// not found -- help web crawlers
if (!isset($item['id'])) {
Safe::header('Status: 404 Not Found', TRUE, 404);
