Wordpress 2.3.2
[autoinstalls/wordpress.git] / wp-includes / capabilities.php
index de9963174403bbdc43ad68ab4c9b7292875b1a62..3c3594d1c54c76afde366b883ea9084744e8958d 100644 (file)
@@ -6,16 +6,28 @@ class WP_Roles {
        var $role_objects = array();
        var $role_names = array();
        var $role_key;
+       var $use_db = true;
 
        function WP_Roles() {
-               global $table_prefix;
-               $this->role_key = $table_prefix . 'user_roles';
+               $this->_init();
+       }
 
-               $this->roles = get_option($this->role_key);
+       function _init () {
+               global $wpdb;
+               global $wp_user_roles;
+               $this->role_key = $wpdb->prefix . 'user_roles';
+               if ( ! empty($wp_user_roles) ) {
+                       $this->roles = $wp_user_roles;
+                       $this->use_db = false;
+               } else {
+                       $this->roles = get_option($this->role_key);
+               }
 
                if ( empty($this->roles) )
                        return;
 
+               $this->role_objects = array();
+               $this->role_names =  array();
                foreach ($this->roles as $role => $data) {
                        $this->role_objects[$role] = new WP_Role($role, $this->roles[$role]['capabilities']);
                        $this->role_names[$role] = $this->roles[$role]['name'];
@@ -29,31 +41,35 @@ class WP_Roles {
                $this->roles[$role] = array(
                        'name' => $display_name,
                        'capabilities' => $capabilities);
-               update_option($this->role_key, $this->roles);
+               if ( $this->use_db )
+                       update_option($this->role_key, $this->roles);
                $this->role_objects[$role] = new WP_Role($role, $capabilities);
                $this->role_names[$role] = $display_name;
                return $this->role_objects[$role];
        }
-       
+
        function remove_role($role) {
                if ( ! isset($this->role_objects[$role]) )
                        return;
-               
+
                unset($this->role_objects[$role]);
                unset($this->role_names[$role]);
                unset($this->roles[$role]);
-               
-               update_option($this->role_key, $this->roles);
+
+               if ( $this->use_db )
+                       update_option($this->role_key, $this->roles);
        }
 
        function add_cap($role, $cap, $grant = true) {
                $this->roles[$role]['capabilities'][$cap] = $grant;
-               update_option($this->role_key, $this->roles);
+               if ( $this->use_db )
+                       update_option($this->role_key, $this->roles);
        }
 
        function remove_cap($role, $cap) {
                unset($this->roles[$role]['capabilities'][$cap]);
-               update_option($this->role_key, $this->roles);
+               if ( $this->use_db )
+                       update_option($this->role_key, $this->roles);
        }
 
        function &get_role($role) {
@@ -70,7 +86,7 @@ class WP_Roles {
        function is_role($role)
        {
                return isset($this->role_names[$role]);
-       }       
+       }
 }
 
 class WP_Role {
@@ -114,14 +130,15 @@ class WP_Role {
 
 class WP_User {
        var $data;
-       var $id = 0;
+       var $ID = 0;
+       var $id = 0; // Deprecated, use $ID instead.
        var $caps = array();
        var $cap_key;
        var $roles = array();
        var $allcaps = array();
 
        function WP_User($id, $name = '') {
-               global $table_prefix;
+               global $wpdb;
 
                if ( empty($id) && empty($name) )
                        return;
@@ -144,16 +161,21 @@ class WP_User {
                }
 
                $this->id = $this->ID;
-               $this->cap_key = $table_prefix . 'capabilities';
+               $this->_init_caps();
+       }
+
+       function _init_caps() {
+               global $wpdb;
+               $this->cap_key = $wpdb->prefix . 'capabilities';
                $this->caps = &$this->{$this->cap_key};
                if ( ! is_array($this->caps) )
                        $this->caps = array();
                $this->get_role_caps();
        }
-       
+
        function get_role_caps() {
                global $wp_roles;
-               
+
                if ( ! isset($wp_roles) )
                        $wp_roles = new WP_Roles();
 
@@ -163,77 +185,89 @@ class WP_User {
 
                //Build $allcaps from role caps, overlay user's $caps
                $this->allcaps = array();
-               foreach($this->roles as $role) {
+               foreach( (array) $this->roles as $role) {
                        $role = $wp_roles->get_role($role);
                        $this->allcaps = array_merge($this->allcaps, $role->capabilities);
                }
                $this->allcaps = array_merge($this->allcaps, $this->caps);
        }
-       
+
        function add_role($role) {
                $this->caps[$role] = true;
-               update_usermeta($this->id, $this->cap_key, $this->caps);
+               update_usermeta($this->ID, $this->cap_key, $this->caps);
                $this->get_role_caps();
                $this->update_user_level_from_caps();
        }
-       
+
        function remove_role($role) {
                if ( empty($this->roles[$role]) || (count($this->roles) <= 1) )
                        return;
                unset($this->caps[$role]);
-               update_usermeta($this->id, $this->cap_key, $this->caps);
+               update_usermeta($this->ID, $this->cap_key, $this->caps);
                $this->get_role_caps();
        }
-       
+
        function set_role($role) {
-               foreach($this->roles as $oldrole) 
+               foreach($this->roles as $oldrole)
                        unset($this->caps[$oldrole]);
-               $this->caps[$role] = true;
-               $this->roles = array($role => true);
-               update_usermeta($this->id, $this->cap_key, $this->caps);
+               if ( !empty($role) ) {
+                       $this->caps[$role] = true;
+                       $this->roles = array($role => true);
+               } else {
+                       $this->roles = false;
+               }
+               update_usermeta($this->ID, $this->cap_key, $this->caps);
                $this->get_role_caps();
                $this->update_user_level_from_caps();
        }
 
        function level_reduction($max, $item) {
-           if(preg_match('/^level_(10|[0-9])$/i', $item, $matches)) {
-               $level = intval($matches[1]);
-               return max($max, $level);
-           } else {
-               return $max;
-           }
+               if(preg_match('/^level_(10|[0-9])$/i', $item, $matches)) {
+                       $level = intval($matches[1]);
+                       return max($max, $level);
+               } else {
+                       return $max;
+               }
        }
-       
+
        function update_user_level_from_caps() {
-           global $table_prefix;
-           $this->user_level = array_reduce(array_keys($this->allcaps),        array(&$this, 'level_reduction'), 0);
-           update_usermeta($this->id, $table_prefix.'user_level', $this->user_level);
+               global $wpdb;
+               $this->user_level = array_reduce(array_keys($this->allcaps),    array(&$this, 'level_reduction'), 0);
+               update_usermeta($this->ID, $wpdb->prefix.'user_level', $this->user_level);
        }
-       
+
        function add_cap($cap, $grant = true) {
                $this->caps[$cap] = $grant;
-               update_usermeta($this->id, $this->cap_key, $this->caps);
+               update_usermeta($this->ID, $this->cap_key, $this->caps);
        }
 
        function remove_cap($cap) {
                if ( empty($this->caps[$cap]) ) return;
                unset($this->caps[$cap]);
-               update_usermeta($this->id, $this->cap_key, $this->caps);
+               update_usermeta($this->ID, $this->cap_key, $this->caps);
+       }
+
+       function remove_all_caps() {
+               global $wpdb;
+               $this->caps = array();
+               update_usermeta($this->ID, $this->cap_key, '');
+               update_usermeta($this->ID, $wpdb->prefix.'user_level', '');
+               $this->get_role_caps();
        }
-       
+
        //has_cap(capability_or_role_name) or
        //has_cap('edit_post', post_id)
        function has_cap($cap) {
                if ( is_numeric($cap) )
                        $cap = $this->translate_level_to_cap($cap);
-               
+
                $args = array_slice(func_get_args(), 1);
-               $args = array_merge(array($cap, $this->id), $args);
+               $args = array_merge(array($cap, $this->ID), $args);
                $caps = call_user_func_array('map_meta_cap', $args);
                // Must have ALL requested caps
                $capabilities = apply_filters('user_has_cap', $this->allcaps, $caps, $args);
                foreach ($caps as $cap) {
-                       //echo "Checking cap $cap<br/>";
+                       //echo "Checking cap $cap<br />";
                        if(empty($capabilities[$cap]) || !$capabilities[$cap])
                                return false;
                }
@@ -253,45 +287,130 @@ function map_meta_cap($cap, $user_id) {
        $caps = array();
 
        switch ($cap) {
+       case 'delete_user':
+               $caps[] = 'delete_users';
+               break;
+       case 'edit_user':
+               $caps[] = 'edit_users';
+               break;
+       case 'delete_post':
+               $author_data = get_userdata($user_id);
+               //echo "post ID: {$args[0]}<br />";
+               $post = get_post($args[0]);
+               if ( 'page' == $post->post_type ) {
+                       $args = array_merge(array('delete_page', $user_id), $args);
+                       return call_user_func_array('map_meta_cap', $args);
+               }
+               $post_author_data = get_userdata($post->post_author);
+               //echo "current user id : $user_id, post author id: " . $post_author_data->ID . "<br />";
+               // If the user is the author...
+               if ($user_id == $post_author_data->ID) {
+                       // If the post is published...
+                       if ($post->post_status == 'publish')
+                               $caps[] = 'delete_published_posts';
+                       else
+                               // If the post is draft...
+                               $caps[] = 'delete_posts';
+               } else {
+                       // The user is trying to edit someone else's post.
+                       $caps[] = 'delete_others_posts';
+                       // The post is published, extra cap required.
+                       if ($post->post_status == 'publish')
+                               $caps[] = 'delete_published_posts';
+                       else if ($post->post_status == 'private')
+                               $caps[] = 'delete_private_posts';
+               }
+               break;
+       case 'delete_page':
+               $author_data = get_userdata($user_id);
+               //echo "post ID: {$args[0]}<br />";
+               $page = get_page($args[0]);
+               $page_author_data = get_userdata($page->post_author);
+               //echo "current user id : $user_id, page author id: " . $page_author_data->ID . "<br />";
+               // If the user is the author...
+               if ($user_id == $page_author_data->ID) {
+                       // If the page is published...
+                       if ($page->post_status == 'publish')
+                               $caps[] = 'delete_published_pages';
+                       else
+                               // If the page is draft...
+                               $caps[] = 'delete_pages';
+               } else {
+                       // The user is trying to edit someone else's page.
+                       $caps[] = 'delete_others_pages';
+                       // The page is published, extra cap required.
+                       if ($page->post_status == 'publish')
+                               $caps[] = 'delete_published_pages';
+                       else if ($page->post_status == 'private')
+                               $caps[] = 'delete_private_pages';
+               }
+               break;
                // edit_post breaks down to edit_posts, edit_published_posts, or
                // edit_others_posts
        case 'edit_post':
                $author_data = get_userdata($user_id);
-               //echo "post ID: {$args[0]}<br/>";
+               //echo "post ID: {$args[0]}<br />";
                $post = get_post($args[0]);
+               if ( 'page' == $post->post_type ) {
+                       $args = array_merge(array('edit_page', $user_id), $args);
+                       return call_user_func_array('map_meta_cap', $args);
+               }
                $post_author_data = get_userdata($post->post_author);
-               //echo "current user id : $user_id, post author id: " . $post_author_data->ID . "<br/>";
+               //echo "current user id : $user_id, post author id: " . $post_author_data->ID . "<br />";
                // If the user is the author...
                if ($user_id == $post_author_data->ID) {
                        // If the post is published...
                        if ($post->post_status == 'publish')
                                $caps[] = 'edit_published_posts';
-                       else if ($post->post_status == 'static')
-                               $caps[] = 'edit_pages';
                        else
                                // If the post is draft...
                                $caps[] = 'edit_posts';
                } else {
-                       if ($post->post_status == 'static') {
-                               $caps[] = 'edit_pages';
-                               break;
-                       }
-
                        // The user is trying to edit someone else's post.
                        $caps[] = 'edit_others_posts';
                        // The post is published, extra cap required.
                        if ($post->post_status == 'publish')
                                $caps[] = 'edit_published_posts';
+                       else if ($post->post_status == 'private')
+                               $caps[] = 'edit_private_posts';
+               }
+               break;
+       case 'edit_page':
+               $author_data = get_userdata($user_id);
+               //echo "post ID: {$args[0]}<br />";
+               $page = get_page($args[0]);
+               $page_author_data = get_userdata($page->post_author);
+               //echo "current user id : $user_id, page author id: " . $page_author_data->ID . "<br />";
+               // If the user is the author...
+               if ($user_id == $page_author_data->ID) {
+                       // If the page is published...
+                       if ($page->post_status == 'publish')
+                               $caps[] = 'edit_published_pages';
+                       else
+                               // If the page is draft...
+                               $caps[] = 'edit_pages';
+               } else {
+                       // The user is trying to edit someone else's page.
+                       $caps[] = 'edit_others_pages';
+                       // The page is published, extra cap required.
+                       if ($page->post_status == 'publish')
+                               $caps[] = 'edit_published_pages';
+                       else if ($page->post_status == 'private')
+                               $caps[] = 'edit_private_pages';
                }
                break;
        case 'read_post':
                $post = get_post($args[0]);
-               
+               if ( 'page' == $post->post_type ) {
+                       $args = array_merge(array('read_page', $user_id), $args);
+                       return call_user_func_array('map_meta_cap', $args);
+               }
+
                if ( 'private' != $post->post_status ) {
                        $caps[] = 'read';
-                       break;  
+                       break;
                }
-                       
+
                $author_data = get_userdata($user_id);
                $post_author_data = get_userdata($post->post_author);
                if ($user_id == $post_author_data->ID)
@@ -299,6 +418,21 @@ function map_meta_cap($cap, $user_id) {
                else
                        $caps[] = 'read_private_posts';
                break;
+       case 'read_page':
+               $page = get_page($args[0]);
+
+               if ( 'private' != $page->post_status ) {
+                       $caps[] = 'read';
+                       break;
+               }
+
+               $author_data = get_userdata($user_id);
+               $page_author_data = get_userdata($page->post_author);
+               if ($user_id == $page_author_data->ID)
+                       $caps[] = 'read';
+               else
+                       $caps[] = 'read_private_pages';
+               break;
        default:
                // If no meta caps match, return the original cap.
                $caps[] = $cap;
@@ -311,12 +445,12 @@ function map_meta_cap($cap, $user_id) {
 function current_user_can($capability) {
        $current_user = wp_get_current_user();
 
-       $args = array_slice(func_get_args(), 1);
-       $args = array_merge(array($capability), $args);
-
        if ( empty($current_user) )
                return false;
 
+       $args = array_slice(func_get_args(), 1);
+       $args = array_merge(array($capability), $args);
+
        return call_user_func_array(array(&$current_user, 'has_cap'), $args);
 }
 
@@ -348,74 +482,4 @@ function remove_role($role) {
        return $wp_roles->remove_role($role);
 }
 
-//
-// These are deprecated.  Use current_user_can().
-//
-
-/* returns true if $user_id can create a new post */
-function user_can_create_post($user_id, $blog_id = 1, $category_id = 'None') {
-       $author_data = get_userdata($user_id);
-       return ($author_data->user_level > 1);
-}
-
-/* returns true if $user_id can create a new post */
-function user_can_create_draft($user_id, $blog_id = 1, $category_id = 'None') {
-       $author_data = get_userdata($user_id);
-       return ($author_data->user_level >= 1);
-}
-
-/* returns true if $user_id can edit $post_id */
-function user_can_edit_post($user_id, $post_id, $blog_id = 1) {
-       $author_data = get_userdata($user_id);
-       $post = get_post($post_id);
-       $post_author_data = get_userdata($post->post_author);
-
-       if ( (($user_id == $post_author_data->ID) && !($post->post_status == 'publish' &&  $author_data->user_level < 2))
-            || ($author_data->user_level > $post_author_data->user_level)
-            || ($author_data->user_level >= 10) ) {
-               return true;
-       } else {
-               return false;
-       }
-}
-
-/* returns true if $user_id can delete $post_id */
-function user_can_delete_post($user_id, $post_id, $blog_id = 1) {
-       // right now if one can edit, one can delete
-       return user_can_edit_post($user_id, $post_id, $blog_id);
-}
-
-/* returns true if $user_id can set new posts' dates on $blog_id */
-function user_can_set_post_date($user_id, $blog_id = 1, $category_id = 'None') {
-       $author_data = get_userdata($user_id);
-       return (($author_data->user_level > 4) && user_can_create_post($user_id, $blog_id, $category_id));
-}
-
-/* returns true if $user_id can edit $post_id's date */
-function user_can_edit_post_date($user_id, $post_id, $blog_id = 1) {
-       $author_data = get_userdata($user_id);
-       return (($author_data->user_level > 4) && user_can_edit_post($user_id, $post_id, $blog_id));
-}
-
-/* returns true if $user_id can edit $post_id's comments */
-function user_can_edit_post_comments($user_id, $post_id, $blog_id = 1) {
-       // right now if one can edit a post, one can edit comments made on it
-       return user_can_edit_post($user_id, $post_id, $blog_id);
-}
-
-/* returns true if $user_id can delete $post_id's comments */
-function user_can_delete_post_comments($user_id, $post_id, $blog_id = 1) {
-       // right now if one can edit comments, one can delete comments
-       return user_can_edit_post_comments($user_id, $post_id, $blog_id);
-}
-
-function user_can_edit_user($user_id, $other_user) {
-       $user  = get_userdata($user_id);
-       $other = get_userdata($other_user);
-       if ( $user->user_level > $other->user_level || $user->user_level > 8 || $user->ID == $other->ID )
-               return true;
-       else
-               return false;
-}
-
 ?>