flatpak-builder/lib/xdg-app-remote.c

/*
 * Copyright © 2015 Red Hat, Inc
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library. If not, see <http://www.gnu.org/licenses/>.
 *
 * Authors:
 *       Alexander Larsson <alexl@redhat.com>
 */

#include "config.h"

#include "xdg-app-remote-private.h"
#include "xdg-app-remote-ref-private.h"
#include "xdg-app-enum-types.h"
#include "xdg-app-utils.h"

#include <string.h>

typedef struct _XdgAppRemotePrivate XdgAppRemotePrivate;

struct _XdgAppRemotePrivate
{
  char *name;
  XdgAppDir *dir;
};

G_DEFINE_TYPE_WITH_PRIVATE (XdgAppRemote, xdg_app_remote, G_TYPE_OBJECT)

enum {
  PROP_0,

  PROP_NAME,
};

static void
xdg_app_remote_finalize (GObject *object)
{
  XdgAppRemote *self = XDG_APP_REMOTE (object);
  XdgAppRemotePrivate *priv = xdg_app_remote_get_instance_private (self);

  g_free (priv->name);
  g_object_unref (priv->dir);

  G_OBJECT_CLASS (xdg_app_remote_parent_class)->finalize (object);
}

static void
xdg_app_remote_set_property (GObject         *object,
                             guint            prop_id,
                             const GValue    *value,
                             GParamSpec      *pspec)
{
  XdgAppRemote *self = XDG_APP_REMOTE (object);
  XdgAppRemotePrivate *priv = xdg_app_remote_get_instance_private (self);

  switch (prop_id)
    {
    case PROP_NAME:
      g_clear_pointer (&priv->name, g_free);
      priv->name = g_value_dup_string (value);
      break;

    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
      break;
    }
}

static void
xdg_app_remote_get_property (GObject         *object,
                             guint            prop_id,
                             GValue          *value,
                             GParamSpec      *pspec)
{
  XdgAppRemote *self = XDG_APP_REMOTE (object);
  XdgAppRemotePrivate *priv = xdg_app_remote_get_instance_private (self);

  switch (prop_id)
    {
    case PROP_NAME:
      g_value_set_string (value, priv->name);
      break;

    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
      break;
    }
}

static void
xdg_app_remote_class_init (XdgAppRemoteClass *klass)
{
  GObjectClass *object_class = G_OBJECT_CLASS (klass);

  object_class->get_property = xdg_app_remote_get_property;
  object_class->set_property = xdg_app_remote_set_property;
  object_class->finalize = xdg_app_remote_finalize;

  g_object_class_install_property (object_class,
                                   PROP_NAME,
                                   g_param_spec_string ("name",
                                                        "",
                                                        "",
                                                        NULL,
                                                        G_PARAM_READWRITE));
}

static void
xdg_app_remote_init (XdgAppRemote *self)
{
}

const char *
xdg_app_remote_get_name (XdgAppRemote *self)
{
  XdgAppRemotePrivate *priv = xdg_app_remote_get_instance_private (self);

  return priv->name;
}

char *
xdg_app_remote_get_url (XdgAppRemote *self)
{
  XdgAppRemotePrivate *priv = xdg_app_remote_get_instance_private (self);
  OstreeRepo *repo = xdg_app_dir_get_repo (priv->dir);
  char *url;

  if (ostree_repo_remote_get_url (repo, priv->name, &url, NULL))
    return url;

  return NULL;
}

char *
xdg_app_remote_get_title (XdgAppRemote *self)
{
  XdgAppRemotePrivate *priv = xdg_app_remote_get_instance_private (self);

  return xdg_app_dir_get_remote_title (priv->dir, priv->name);
}

gboolean
xdg_app_remote_get_noenumerate (XdgAppRemote *self)
{
  XdgAppRemotePrivate *priv = xdg_app_remote_get_instance_private (self);

  return xdg_app_dir_get_remote_noenumerate (priv->dir, priv->name);
}

gboolean
xdg_app_remote_get_gpg_verify (XdgAppRemote *self)
{
  XdgAppRemotePrivate *priv = xdg_app_remote_get_instance_private (self);
  OstreeRepo *repo = xdg_app_dir_get_repo (priv->dir);
  gboolean res;

  if (ostree_repo_remote_get_gpg_verify (repo, priv->name, &res, NULL))
    return res;

  return FALSE;
}

/**
 * xdg_app_remote_list_refs_sync:
 * @self: a #XdgAppRemove
 * @cancellable: (nullable): a #GCancellable
 * @error: return location for a #GError
 *
 * Lists all the refs in a #XdgAppRemote.
 *
 * Returns: (transfer full) (array zero-terminated=1): a %NULL-terminated array
 *   of #XdgAppRemoteRef instances
 */
XdgAppRemoteRef **
xdg_app_remote_list_refs_sync (XdgAppRemote *self,
                               GCancellable *cancellable,
                               GError **error)
{
  XdgAppRemotePrivate *priv = xdg_app_remote_get_instance_private (self);
  g_autoptr(GPtrArray) refs = g_ptr_array_new_with_free_func (g_object_unref);
  g_autoptr(GHashTable) ht = NULL;
  GHashTableIter iter;
  gpointer key;
  gpointer value;

  if (!xdg_app_dir_list_remote_refs (priv->dir,
                                     priv->name,
                                     &ht,
                                     cancellable,
                                     error))
    return NULL;

  g_hash_table_iter_init (&iter, ht);
  while (g_hash_table_iter_next (&iter, &key, &value))
    {
      const char *refspec = key;
      const char *checksum = value;

      g_ptr_array_add (refs,
                       xdg_app_remote_ref_new (refspec, checksum, priv->name, priv->dir));
    }

  g_ptr_array_add (refs, NULL);
  return (XdgAppRemoteRef **)g_ptr_array_free (g_steal_pointer (&refs), FALSE);
}

/**
 * xdg_app_remote_fetch_ref_sync:
 * @self: a #XdgAppRemove
 * @cancellable: (nullable): a #GCancellable
 * @error: return location for a #GError
 *
 * Gets the current remote version of a ref in the #XdgAppRemote.
 *
 * Returns: (transfer full): a #XdgAppRemoteRef instance, or %NULL
 */
XdgAppRemoteRef *
xdg_app_remote_fetch_ref_sync (XdgAppRemote *self,
                               XdgAppRefKind kind,
                               const char   *name,
                               const char   *arch,
                               const char   *version,
                               GCancellable *cancellable,
                               GError **error)
{
  XdgAppRemotePrivate *priv = xdg_app_remote_get_instance_private (self);
  g_autoptr(GPtrArray) refs = g_ptr_array_new_with_free_func (g_object_unref);
  g_autoptr(GHashTable) ht = NULL;
  g_autofree char *ref = NULL;
  const char *checksum;

  if (version == NULL)
    version = "master";

  if (!xdg_app_dir_list_remote_refs (priv->dir,
                                     priv->name,
                                     &ht,
                                     cancellable,
                                     error))
    return NULL;

  if (kind == XDG_APP_REF_KIND_APP)
    ref = xdg_app_build_app_ref (name,
                                 version,
                                 arch);
  else
    ref = xdg_app_build_runtime_ref (name,
                                     version,
                                     arch);

  checksum = g_hash_table_lookup (ht, ref);

  if (checksum != NULL)
    return xdg_app_remote_ref_new (ref, checksum, priv->name, priv->dir);

  g_set_error (error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND,
               "Reference %s doesn't exist in remote\n", ref);
  return NULL;
}



XdgAppRemote *
xdg_app_remote_new (XdgAppDir *dir,
                    const char *name)
{
  XdgAppRemotePrivate *priv;
  XdgAppRemote *self = g_object_new (XDG_APP_TYPE_REMOTE,
                                     "name", name,
                                     NULL);

  priv = xdg_app_remote_get_instance_private (self);
  priv->dir = g_object_ref (dir);

  return self;
}