path: root/embed/ephy-permission-manager.c

/*
 *  Copyright © 2003 Marco Pesenti Gritti
 *  Copyright © 2003 Christian Persch
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2, or (at your option)
 *  any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 */

#include "config.h"
#include "ephy-permission-manager.h"

#include "ephy-embed-type-builtins.h"
#include "ephy-debug.h"

G_DEFINE_BOXED_TYPE (EphyPermissionInfo, ephy_permission_info,
             ephy_permission_info_copy, ephy_permission_info_free)

/**
 * ephy_permission_info_new:
 * @host: a host name
 * @type: an #EphyPermissionType
 * @permission: whether @host should be allowed to do what @type specifies
 *
 * Return value: the new #EphyPermissionInfo
 **/
EphyPermissionInfo *
ephy_permission_info_new (const char *host,
              const char *type,
              EphyPermission permission)
{
    EphyPermissionInfo *info = g_slice_new0 (EphyPermissionInfo);

    info->host = g_strdup (host);
    info->qtype = g_quark_from_string (type);
    info->permission = permission;

    return info;
}

/**
 * ephy_permission_info_copy:
 * @info: an #EphyPermissionInfo
 *
 * Return value: a copy of @info
 **/
EphyPermissionInfo *
ephy_permission_info_copy (const EphyPermissionInfo *info)
{
    EphyPermissionInfo *copy = g_slice_new0 (EphyPermissionInfo);

    copy->host = g_strdup (info->host);
    copy->qtype = info->qtype;
    copy->permission = info->permission;

    return copy;
}

/**
 * ephy_permission_info_free:
 * @info: an #EphyPermissionInfo
 *
 * Frees @info.
 **/
void
ephy_permission_info_free (EphyPermissionInfo *info)
{
    if (info != NULL)
    {
        g_free (info->host);
        g_slice_free (EphyPermissionInfo, info);
    }
}

/* EphyPermissionManager */

static void ephy_permission_manager_base_init (gpointer g_class);

GType
ephy_permission_manager_get_type (void)
{
       static GType type = 0;

    if (G_UNLIKELY (type == 0))
    {
        const GTypeInfo our_info =
        {
        sizeof (EphyPermissionManagerIface),
        ephy_permission_manager_base_init,
        NULL,
        };
        
        type = g_type_register_static (G_TYPE_INTERFACE,
                           "EphyPermissionManager",
                           &our_info,
                           (GTypeFlags) 0);
    }

    return type;
}

static void
ephy_permission_manager_base_init (gpointer g_class)
{
    static gboolean initialised = FALSE;

    if (initialised == FALSE)
    {
    /**
     * EphyPermissionManager::permission-added:
     * @manager: the #EphyPermissionManager
     * @info: a #EphyPermissionInfo
     *
     * The permission-added signal is emitted when a permission entry has
     * been added.
     */
    g_signal_new ("permission-added",
              EPHY_TYPE_PERMISSION_MANAGER,
              G_SIGNAL_RUN_FIRST,
              G_STRUCT_OFFSET (EphyPermissionManagerIface, added),
              NULL, NULL,
              g_cclosure_marshal_VOID__BOXED,
              G_TYPE_NONE,
              1,
              EPHY_TYPE_PERMISSION_INFO | G_SIGNAL_TYPE_STATIC_SCOPE);

    /**
     * EphyPermissionManager::permission-changed:
     * @manager: the #EphyPermissionManager
     * @info: a #EphyPermissionInfo
     *
     * The permission-changed signal is emitted when a permission entry has
     * been changed.
     */
    g_signal_new ("permission-changed",
              EPHY_TYPE_PERMISSION_MANAGER,
              G_SIGNAL_RUN_FIRST,
              G_STRUCT_OFFSET (EphyPermissionManagerIface, changed),
              NULL, NULL,
              g_cclosure_marshal_VOID__BOXED,
              G_TYPE_NONE,
              1,
              EPHY_TYPE_PERMISSION_INFO | G_SIGNAL_TYPE_STATIC_SCOPE);

    /**
     * EphyPermissionManager::permission-deleted:
     * @manager: the #EphyPermissionManager
     * @info: a #EphyPermissionInfo
     *
     * The permission-deleted signal is emitted when a permission entry has
     * been deleted.
     */
    g_signal_new ("permission-deleted",
              EPHY_TYPE_PERMISSION_MANAGER,
              G_SIGNAL_RUN_FIRST,
              G_STRUCT_OFFSET (EphyPermissionManagerIface, deleted),
              NULL, NULL,
              g_cclosure_marshal_VOID__BOXED,
              G_TYPE_NONE,
              1,
              EPHY_TYPE_PERMISSION_INFO | G_SIGNAL_TYPE_STATIC_SCOPE);

    /**
     * EphyPermissionManager::permissions-cleared:
     * @manager: the #EphyPermissionManager
     *
     * The permissions-cleared signal is emitted when the permissions
     * database has been cleared.
     */
    g_signal_new ("permissions-cleared",
              EPHY_TYPE_PERMISSION_MANAGER,
              G_SIGNAL_RUN_FIRST,
              G_STRUCT_OFFSET (EphyPermissionManagerIface, cleared),
              NULL, NULL,
              g_cclosure_marshal_VOID__VOID,
              G_TYPE_NONE,
              0);

    initialised = TRUE;
    }
}

/**
 * ephy_permission_manager_add_permission:
 * @manager: the #EphyPermissionManager
 * @host: a website URL
 * @type: a string to identify the type of the permission
 * @permission: either %EPHY_PERMISSION_ALLOWED or %EPHY_PERMISSION_DENIED
 * 
 * Adds the specified permission to the permissions database.
 **/
void
ephy_permission_manager_add_permission (EphyPermissionManager *manager,
                    const char *host,
                    const char *type,
                    EphyPermission permission)
{
    EphyPermissionManagerIface *iface = EPHY_PERMISSION_MANAGER_GET_IFACE (manager);
    iface->add (manager, host, type, permission);
}

/**
 * ephy_permission_manager_remove_permission:
 * @manager: the #EphyPermissionManager
 * @host: a website URL
 * @type: a string to identify the type of the permission
 * 
 * Removes the specified permission from the permissions database. This implies
 * that the browser should use defaults when next visiting the specified
 * @host's web pages.
 **/
void
ephy_permission_manager_remove_permission (EphyPermissionManager *manager,
                       const char *host,
                       const char *type)
{
    EphyPermissionManagerIface *iface = EPHY_PERMISSION_MANAGER_GET_IFACE (manager);
    iface->remove (manager, host, type);
}

/**
 * ephy_permission_manager_clear_permission:
 * @manager: the #EphyPermissionManager
 * 
 * Clears the permissions database. This cannot be undone.
 **/
void
ephy_permission_manager_clear_permissions (EphyPermissionManager *manager)
{
    EphyPermissionManagerIface *iface = EPHY_PERMISSION_MANAGER_GET_IFACE (manager);
    iface->clear (manager);
}

/**
 * ephy_permission_manager_test_permission:
 * @manager: the #EphyPermissionManager
 * @host: a website URL
 * @type: a string to identify the type of the permission
 * 
 * Retrieves an #EphyPermissionType from the permissions database. If there is
 * no entry for this @type and @host, it will return %EPHY_PERMISSION_DEFAULT.
 * In that case, the caller may need to determine the appropriate default
 * behavior.
 *
 * Return value: the permission of type #EphyPermission
 **/
EphyPermission
ephy_permission_manager_test_permission (EphyPermissionManager *manager,
                     const char *host,
                     const char *type)
{
    EphyPermissionManagerIface *iface = EPHY_PERMISSION_MANAGER_GET_IFACE (manager);
    return iface->test (manager, host, type);
}

/**
 * ephy_permission_manager_list_permissions:
 * @manager: the #EphyPermissionManager
 * @type: a string to identify the type of the permission
 * 
 * Lists all permission entries of type @type in the permissions database, each
 * as its own #EphyPermissionInfo. These entries must be freed using
 * ephy_permission_info_free().
 * 
 * Return value: (transfer none) (element-type EphyPermissionInfo): the list of permission database entries
 **/
GList *
ephy_permission_manager_list_permissions (EphyPermissionManager *manager,
                     const char *type)
{
    EphyPermissionManagerIface *iface = EPHY_PERMISSION_MANAGER_GET_IFACE (manager);
    return iface->list (manager, type);
}