function flt_wp_dropdown_users($wp_output)
{
// just filter Post Author dropdown
if (!strpos($wp_output, "name='post_author_override'")) {
return $wp_output;
}
// this is meant to filter the post author selection
if (!is_admin()) {
return $wp_output;
}
// if (even after our blogcap tinkering) the author list is already locked due to insufficient blog-wide caps, don't mess
if (!($pos = strpos($wp_output, '<option'))) {
return $wp_output;
}
if (!strpos($wp_output, '<option', $pos + 1)) {
return $wp_output;
}
global $wpdb, $scoper;
$last_query = $wpdb->last_query;
if (!($object_type = cr_find_post_type())) {
return $wp_output;
}
if (!($post_type_obj = get_post_type_object($object_type))) {
return $wp_output;
}
global $current_user;
$is_ngg_edit = strpos($_SERVER['REQUEST_URI'], 'nggallery-manage-gallery');
if (!$is_ngg_edit) {
$src_name = 'post';
$object_id = scoper_get_object_id('post', $object_type);
// only modify the default authors list if current user has Editor role for the current post/page
$have_cap = cr_user_can($post_type_obj->cap->edit_others_posts, $object_id, 0, array('require_full_object_role' => true));
} else {
$src_name = 'ngg_gallery';
$object_id = $_REQUEST['gid'];
$have_cap = !empty($current_user->allcaps[$post_type_obj->cap->edit_others_posts]);
// $post_type_obj defaults to 'post' type on NGG Manage Gallery page
}
//if ( ! $have_cap )
// return $wp_output;
$orderpos = strpos($last_query, 'ORDER BY');
$orderby = $orderpos ? substr($last_query, $orderpos) : '';
if (!strpos($orderby, 'display_name')) {
// sanity check in case the last_query buffer gets messed up
$orderby = '';
}
$id_in = $id_not_in = $show_option_all = $show_option_none = '';
$pos = strpos($last_query, 'AND ID IN(');
if ($pos) {
$pos_close = strpos($last_query, ')', $pos);
if ($pos_close) {
$id_in = substr($last_query, $pos, $pos_close - $pos + 1);
}
}
$pos = strpos($last_query, 'AND ID NOT IN(');
if ($pos) {
$pos_close = strpos($last_query, ')', $pos);
if ($pos_close) {
$id_not_in = substr($last_query, $pos, $pos_close - $pos + 1);
}
}
$search = "<option value='0'>";
$pos = strpos($wp_output, $search . __awp('Any'));
if ($pos) {
$pos_close = strpos($wp_output, '</option>', $pos);
if ($pos_close) {
$show_option_all = substr($wp_output, $pos + strlen($search), $pos_close - $pos - strlen($search));
}
}
$search = "<option value='-1'>";
$pos = strpos($wp_output, $search . __awp('None'));
if ($pos) {
$pos_close = strpos($wp_output, '</option>', $pos);
if ($pos_close) {
$show_option_none = substr($wp_output, $pos + strlen($search), $pos_close - $pos - strlen($search));
}
}
$search = "<select name='";
$pos = strpos($wp_output, $search);
if (false !== $pos) {
$pos_close = strpos($wp_output, "'", $pos + strlen($search));
if ($pos_close) {
$name = substr($wp_output, $pos + strlen($search), $pos_close - $pos - strlen($search));
}
}
$search = " id='";
$multi = !strpos($wp_output, $search);
// beginning with WP 2.7, some users dropdowns lack id attribute
$search = " class='";
$pos = strpos($wp_output, $search);
if ($pos) {
$pos_close = strpos($wp_output, "'", $pos + strlen($search));
if ($pos_close) {
$class = substr($wp_output, $pos + strlen($search), $pos_close - $pos - strlen($search));
}
}
$search = " selected='selected'";
$pos = strpos($wp_output, $search);
if ($pos) {
$search = "<option value='";
$str_left = substr($wp_output, 0, $pos);
$pos = strrpos($str_left, $search);
//back up to previous option tag
$pos_close = strpos($wp_output, "'", $pos + strlen($search));
if ($pos_close) {
$selected = substr($wp_output, $pos + strlen($search), $pos_close - ($pos + strlen($search)));
}
}
if (empty($selected)) {
$selected = $current_user->ID;
}
// precaution prevents default-selection of non-current user
// Role Scoper filter application
$where = "{$id_in} {$id_not_in}";
$args = array();
$args['where'] = $where;
$args['orderby'] = $orderby;
if ($object_id > 0) {
if ($current_author = $scoper->data_sources->get_from_db('owner', $src_name, $object_id)) {
$force_user_id = $current_author;
}
} else {
$force_user_id = $current_user->ID;
}
if ($have_cap) {
if ($force_user_id) {
$args['preserve_or_clause'] = " uro.user_id = '{$force_user_id}'";
}
$users = $scoper->users_who_can($post_type_obj->cap->edit_posts, COLS_ID_DISPLAYNAME_RS, 'post', $object_id, $args);
} else {
$display_name = $wpdb->get_var("SELECT display_name FROM {$wpdb->users} WHERE ID = '{$force_user_id}'");
$users = array((object) array('ID' => $force_user_id, 'display_name' => $display_name));
}
if (empty($users)) {
// sanity check: users_who_can should always return Administrators
if ($admin_roles = awp_administrator_roles()) {
$users = scoper_get_results("SELECT DISTINCT ID, display_name FROM {$wpdb->users} INNER JOIN {$wpdb->user2role2object_rs} AS uro ON uro.user_id = {$wpdb->users}.ID AND uro.scope = 'blog' AND uro.role_type = 'wp' AND uro.role_name IN ('" . implode("','", $admin_roles) . "')");
} else {
return $wp_output;
}
// the user data must be messed up
}
$show = 'display_name';
// no way to back this out
// ----------- begin wp_dropdown_users code copy (from WP 2.7) -------------
$id = $multi ? "" : "id='{$name}'";
$output = "<select name='{$name}' {$id} class='{$class}'>\n";
if ($show_option_all) {
$output .= "\t<option value='0'>{$show_option_all}</option>\n";
}
if ($show_option_none) {
$output .= "\t<option value='-1'>{$show_option_none}</option>\n";
}
foreach ((array) $users as $user) {
$user->ID = (int) $user->ID;
$_selected = $user->ID == $selected ? " selected='selected'" : '';
$display = !empty($user->{$show}) ? $user->{$show} : '(' . $user->user_login . ')';
$output .= "\t<option value='{$user->ID}'{$_selected}>" . esc_html($display) . "</option>\n";
}
$output .= "</select>";
// ----------- end wp_dropdown_users code copy (from WP 2.7) -------------
return $output;
}
function users_queryroles($reqd_caps, $src_name, $object_id = '', $args = array())
{
$defaults = array('roles' => '', 'user' => '', 'querying_groups' => 0, 'use_term_roles' => 1, 'use_blog_roles' => 1, 'skip_object_roles' => false, 'ignore_strict_terms' => 0, 'object_terms' => array(), 'object_type' => '', 'objscope_roles' => '', 'any_object' => false);
$args = array_merge($defaults, (array) $args);
extract($args);
$src = $this->scoper->data_sources->get($src_name);
// ---- The following default argument generation is included to support potential direct usage of this function
// (not needed for flt_users_where call -----------------
// Treat empty reqd_caps array as an error
if (empty($reqd_caps)) {
return array();
}
$reqd_caps = (array) $reqd_caps;
// Calling function may save us a little work if it has already made this call
if (!$roles) {
if (!($roles = $this->scoper->role_defs->qualify_roles($reqd_caps))) {
return array();
}
} else {
$roles = (array) $roles;
}
// this set of reqd_caps cannot be satisfied by any role
if (!$reqd_caps && !$roles) {
return;
}
if ($object_id && !$src_name) {
$object_id = 0;
}
// -----------------------------------------------------------------------------------
// Default to not honoring custom user caps, but support option
$custom_user_blogcaps = SCOPER_CUSTOM_USER_BLOGCAPS;
if (!$object_type) {
if ($object_types = $this->scoper->cap_defs->object_types_from_caps($reqd_caps, $src_name)) {
if (count($object_types) == 1) {
$object_type = reset($object_types);
}
}
if (!$object_type) {
$object_type = cr_find_object_type($src_name, $object_id);
}
}
// RS roles are object type-specific
$roles_wp = $this->scoper->role_defs->filter($roles, array('role_type' => 'wp'));
$roles_rs = $this->scoper->role_defs->filter($roles, array('role_type' => 'rs'));
$this_otype_roles = $this->scoper->role_defs->get_matching('rs', $src_name, $object_type);
$roles_rs = array_intersect_key($roles_rs, $this_otype_roles);
$roles = array_merge($roles_rs, $roles_wp);
$qualifying_roles = array();
// --------- ACCOUNT FOR OBJECT ROLES -----------
// If this set of reqd_caps can be satisfied by a scopable role, check for object role assignements
if (!$skip_object_roles && ($object_id || $any_object)) {
// exclude roles which have never been assigned to any object
if ($object_roles = $this->scoper->qualify_object_roles($reqd_caps, $object_type, -1)) {
$qualifying_roles[OBJECT_SCOPE_RS][''] = scoper_role_handles_to_names(array_keys($roles));
}
}
// If this inquiry is for a particular object, find out which roles must be object-assigned for it
if ($object_id) {
// For term and blog role clauses, exclude roles which require object assignment for that object
// But don't disqualify a role if any of the roles it "contains" also qualify and are not object-scoped.
// (i.e. If the required caps are satisfied by admin, editor and contributor, the actual minimum requirement
// is contributor. A specification that admin and editor roles "require object assignment" does not apply
// in this scenario.
if (!is_array($objscope_roles)) {
$objscope_roles = $this->get_objscope_roles($src_name, $object_id, '', true);
}
if ($objscope_roles) {
$contained_roles = array();
$roles_wp = $this->scoper->role_defs->filter($roles, array('role_type' => 'wp'));
foreach (array_keys($roles_wp) as $role_handle) {
// If scoping with RS roles, this will also have the effect of disqualifying a WP blog role if all of the qualifying RS roles it contains are objscoped.
$contained_roles[$role_handle] = $this->scoper->role_defs->get_contained_roles($role_handle, false, 'rs');
$contained_roles[$role_handle] = array_intersect_key($contained_roles[$role_handle], $roles);
if (!array_diff_key($contained_roles[$role_handle], $objscope_roles)) {
unset($roles[$role_handle]);
}
}
foreach (array_keys($roles) as $role_handle) {
$contained_roles[$role_handle] = $this->scoper->role_defs->get_contained_roles($role_handle, true, 'rs');
//true: include this role in return array
$contained_roles[$role_handle] = array_intersect_key($contained_roles[$role_handle], $roles);
if (!array_diff_key($contained_roles[$role_handle], $objscope_roles)) {
unset($roles[$role_handle]);
}
}
}
}
// --------- ACCOUNT FOR TERM ROLES -----------
// Consider term scope settings and role assignments
//
$uses_taxonomies = scoper_get_taxonomy_usage($src_name, $object_type);
if ($use_term_roles && $src_name && $roles && !empty($uses_taxonomies)) {
// If scoping with RS roles, strip out WP role definitions (which were included for blogrole clause)
$term_roles = $this->scoper->role_defs->filter($roles, array('role_type' => 'rs'));
if ($term_roles) {
foreach ($uses_taxonomies as $taxonomy) {
// include users with a sufficient term role assignment in any term
$qualifying_roles[TERM_SCOPE_RS][$taxonomy] = scoper_role_handles_to_names(array_keys($term_roles));
}
}
// Honor blog-wide assignment of any non-objscope role, but only if at least one term
// is not "strict" (i.e. merges blogroles into term-specific assignments).
if (!$ignore_strict_terms) {
$term_roles = $this->get_unrestricted_term_roles($term_roles, $uses_taxonomies, $object_id, $object_terms);
// disqualify a WP blog role if all of the qualifying RS roles it contains were excluded by the strict terms filter.
if ($roles_wp = $this->scoper->role_defs->filter($roles, array('role_type' => 'wp'))) {
$contained_roles = array();
foreach (array_keys($roles_wp) as $role_handle) {
$contained_roles[$role_handle] = $this->scoper->role_defs->get_contained_roles($role_handle, false, 'rs');
$contained_roles[$role_handle] = array_intersect_key($contained_roles[$role_handle], $roles);
if (!$term_roles || !$contained_roles[$role_handle] || !array_intersect_key($contained_roles[$role_handle], $term_roles)) {
unset($roles[$role_handle]);
}
}
}
$roles_current = $this->scoper->role_defs->filter($roles, array('role_type' => 'rs'));
foreach (array_keys($roles_current) as $role_handle) {
if (!isset($term_roles[$role_handle])) {
unset($roles[$role_handle]);
}
}
// Since this term role is restricted for all terms, prevent corresponding blog role from being added to qualifying_roles array by subsequent code
}
}
// --------- ACCOUNT FOR BLOG ROLES -----------
// For each qualifying role, recognize blog assignment if the reqd_caps set is not associated
// with a defined data source, if this source/object type does not use term roles,
// or if some of the the terms are not strict.
//
// Note that WP blogrole assignments (if not taxonomy or object-scoped) are honored
// regardless of Role Scoper role_type setting.
if ($use_blog_roles) {
if ($admin_roles = awp_administrator_roles()) {
$roles = $roles ? array_merge($roles, $admin_roles) : $admin_roles;
}
if ($roles) {
$role_types = array('rs', 'wp');
foreach ($role_types as $role_type) {
//if ( ('rs' == $role_type) && ! RS_BLOG_ROLES ) // rs_blog_roles option has never been active in any RS release; leave commented here in case need arises
// continue;
$this_type_roles = $this->scoper->role_defs->filter($roles, array('role_type' => $role_type));
$qualifying_roles[BLOG_SCOPE_RS][$role_type] = scoper_role_handles_to_names(array_keys($this_type_roles));
}
}
if ($custom_user_blogcaps && $use_blog_roles) {
// If custom user blogcaps option is enabled, this function is called separately for each reqd cap.
// Custom user caps are stored as "hidden" single-cap role of type WP_CAP, sync'd to WP usermeta storage.
if ($custom_user_blogcaps) {
$qualifying_roles[BLOG_SCOPE_RS]['wp_cap'] = $reqd_caps;
}
// ...which contains one cap
}
}
return $qualifying_roles;
}