/**
* Overwrites capabilities in certain scenarios.
*
* @since 1.0.0
* @access public
* @param array $caps
* @param string $cap
* @param int $user_id
* @param array $args
* @return array
*/
function mb_forum_map_meta_cap($caps, $cap, $user_id, $args)
{
/* Checks if a user can read a specific forum. */
if ('read_post' === $cap && mb_is_forum($args[0])) {
$post = get_post($args[0]);
if ($user_id != $post->post_author) {
$parent_id = $post->post_parent;
/* If we have a parent forum and the user can't read it, don't allow reading this forum. */
if (0 < $parent_id && !mb_user_can($user_id, 'read_forum', $parent_id)) {
$caps = array('do_not_allow');
/* If the user can read the parent forum, check if they can read this one. */
} else {
$post_type = get_post_type_object($post->post_type);
$post_status = mb_get_forum_status($post->ID);
$status_obj = get_post_status_object($post_status);
if (mb_get_hidden_post_status() === $status_obj->name) {
$caps[] = $post_type->cap->read_hidden_forums;
} elseif (mb_get_private_post_status() === $status_obj->name) {
$caps[] = $post_type->cap->read_private_posts;
} elseif ($post_type->cap->read !== $post_type->cap->read_others_forums) {
$caps[] = $post_type->cap->read_others_forums;
} else {
$caps = array();
}
}
} else {
$caps = array();
}
/* Meta cap for editing a single forum. */
} elseif ('edit_post' === $cap && mb_is_forum($args[0])) {
$post = get_post($args[0]);
$forum_obj = get_post_type_object(mb_get_forum_post_type());
if ($user_id != $post->post_author) {
// Open forums.
if (mb_is_forum_open($args[0])) {
$caps[] = $forum_obj->cap->edit_open_forums;
} elseif (mb_is_forum_closed($args[0])) {
$caps[] = $forum_obj->cap->edit_closed_forums;
} elseif (mb_is_forum_hidden($args[0])) {
$caps[] = $forum_obj->cap->edit_hidden_forums;
}
}
/* Meta cap for opening a single forum. */
} elseif ('open_forum' === $cap) {
$caps = array();
$caps[] = user_can($user_id, 'edit_forum', $args[0]) ? 'open_forums' : 'do_not_allow';
/* Meta cap for closing a single forum. */
} elseif ('close_forum' === $cap) {
$caps = array();
$caps[] = user_can($user_id, 'edit_forum', $args[0]) ? 'close_forums' : 'do_not_allow';
/* Meta cap for privatizing a single forum. */
} elseif ('privatize_forum' === $cap) {
$caps = array();
$caps[] = user_can($user_id, 'edit_forum', $args[0]) ? 'privatize_forums' : 'do_not_allow';
/* Meta cap for hiding a single forum. */
} elseif ('hide_forum' === $cap) {
$caps = array();
$caps[] = user_can($user_id, 'edit_forum', $args[0]) ? 'hide_forums' : 'do_not_allow';
/* Meta cap for spamming a single forum. */
} elseif ('archive_forum' === $cap) {
$caps = array();
$caps[] = user_can($user_id, 'edit_forum', $args[0]) ? 'archive_forums' : 'do_not_allow';
/* Meta cap for deleting a specific forum. */
} elseif ('delete_post' === $cap && mb_is_forum($args[0])) {
$forum_id = mb_get_forum_id($args[0]);
if (mb_get_default_forum_id() === $forum_id) {
$caps = array('do_not_allow');
}
/* Meta cap check for accessing the forum form. */
} elseif ('access_forum_form' === $cap) {
$caps = array('create_forums');
/* If this is a single forum page, check if user can create sub-forums. */
if (mb_is_single_forum()) {
$forum_id = mb_get_forum_id();
if (!current_user_can('read_forum', $forum_id)) {
$caps[] = 'do_not_allow';
} elseif (!mb_forum_allows_subforums($forum_id)) {
$caps[] = 'do_not_allow';
}
} elseif (mb_is_forum_edit() && !user_can($user_id, 'edit_post', mb_get_forum_id())) {
$caps[] = 'do_not_allow';
}
}
return $caps;
}
/**
* Filter for the `post_states` hook. We're going to replace any defaults and roll our own.
*
* @since 1.0.0
* @access public
* @param array $post_states
* @param object $post
*/
public function display_post_states($post_states, $post)
{
$states = array();
$forum_id = mb_get_forum_id($post->ID);
if (mb_get_default_forum_id() === $forum_id) {
$states['default-forum'] = __('Default Forum', 'message-board');
}
return $states;
}
/**
* Attempt to always make sure that topics have a post parent.
*
* @since 1.0.0
* @access public
* @param int $post_parent
* @param int $post_id
* @param array $new_postarr
* @return int
*/
function mb_insert_topic_post_parent($post_parent, $post_id, $new_postarr)
{
if (mb_get_topic_post_type() === $new_postarr['post_type'] && 0 >= $post_parent) {
$post_parent = mb_get_default_forum_id();
}
return $post_parent;
}
/**
* Callback function on the `before_delete_post` hook for when a post is deleted. This sets up some
* specific actions based on our post types. It also saves the deleted post object for later use in
* those actions.
*
* @since 1.0.0
* @access public
* @param int $post_id
* @return void
*/
function mb_before_delete_post($post_id)
{
$forum_type = mb_get_forum_post_type();
$topic_type = mb_get_topic_post_type();
$reply_type = mb_get_reply_post_type();
$post_type = get_post_type($post_id);
/* WP doesn't pass the post object after a post has been deleted, so we need to save it temporarily. */
if (in_array($post_type, array($forum_type, $topic_type, $reply_type))) {
message_board()->deleted_post = get_post($post_id);
}
/* If a forum is being deleted. */
if ($forum_type === $post_type) {
/* If this is the default forum, stop everything. */
if (mb_get_default_forum_id() === $post_id) {
wp_die('Whoah there! This is the default forum and cannot be deleted. Visit the settings page to change the default forum.', 'message-board');
}
add_action('after_delete_post', 'mb_after_delete_forum');
/* If a topic is being deleted. */
} elseif ($topic_type === $post_type) {
add_action('after_delete_post', 'mb_after_delete_topic');
/* If a reply is being deleted. */
} elseif ($reply_type === $post_type) {
add_action('after_delete_post', 'mb_after_delete_reply');
}
}
/**
* Front end edit topic handler.
*
* @since 1.0.0
* @access public
* @return void
*/
function mb_handler_edit_topic()
{
/* Verify the nonce. */
if (!mb_check_post_nonce('mb_edit_topic_nonce', 'mb_edit_topic_action')) {
return;
}
/* Make sure we have a topic ID. */
if (!isset($_POST['mb_topic_id'])) {
mb_bring_the_doom('what-edit');
}
/* Get the topic ID. */
$topic_id = mb_get_topic_id($_POST['mb_topic_id']);
/* Make sure the current user can create forum topics. */
if (!current_user_can('edit_topic', $topic_id)) {
mb_bring_the_doom('no-permission');
}
/* Make sure we have a topic title. */
if (empty($_POST['mb_topic_title'])) {
mb_bring_the_doom('no-title');
}
/* Make sure we have topic content. */
if (empty($_POST['mb_topic_content'])) {
mb_bring_the_doom('no-content');
}
/* Post title. */
$post_title = apply_filters('mb_pre_insert_topic_title', $_POST['mb_topic_title']);
/* Post content. */
$post_content = apply_filters('mb_pre_insert_topic_content', $_POST['mb_topic_content']);
/* Forum ID. */
$forum_id = isset($_POST['mb_topic_forum']) ? mb_get_forum_id($_POST['mb_topic_forum']) : 0;
$forum_id = 0 < $forum_id ? $forum_id : mb_get_default_forum_id();
/* Update the topic. */
$published = wp_update_post(array('ID' => $topic_id, 'post_title' => $post_title, 'post_content' => $post_content, 'post_parent' => $forum_id));
/* If the post was published. */
if ($published && !is_wp_error($published)) {
/* If the user chose to subscribe to the topic. */
if (isset($_POST['mb_topic_subscribe']) && 1 === absint($_POST['mb_topic_subscribe'])) {
mb_add_user_topic_subscription(absint($user_id), $published);
} else {
mb_remove_user_topic_subscription(absint($user_id), $published);
}
/* Redirect to the published topic page. */
wp_safe_redirect(get_permalink($published));
}
}
/**
* Topic attributes meta box. This handles whether the topic is sticky and the parent forum. It also
* has the hidden input to save the proper `menu_order` field for the post.
*
* @since 1.0.0
* @access public
* @param object $post
* @return void
*/
function mb_topic_attributes_meta_box($post)
{
wp_nonce_field('_mb_topic_attr_nonce', 'mb_topic_attr_nonce');
$topic_type_object = get_post_type_object(mb_get_topic_post_type());
?>
<p>
<label for="mb_topic_type">
<strong><?php
_e('Topic Type:', 'message-board');
?>
</strong>
</label>
</p>
<p>
<?php
mb_dropdown_topic_type(array('selected' => mb_get_topic_type($post->ID)));
?>
</p>
<p>
<label for="mb_parent_forum">
<strong><?php
echo $topic_type_object->labels->parent_item_colon;
?>
</strong>
</label>
</p>
<p>
<?php
mb_dropdown_forums(array('child_type' => mb_get_topic_post_type(), 'name' => 'parent_id', 'id' => 'mb_parent_forum', 'selected' => !empty($post->post_parent) ? $post->post_parent : mb_get_default_forum_id()));
?>
</p>
<?php
$order = 0 != $post->ID ? $post->post_date : current_time('mysql');
?>
<input type="hidden" name="menu_order" value="<?php
echo esc_attr(mysql2date('U', $order));
?>
" />
<?php
}
