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/*
* Copyright (C) 2011,2017 Colin Walters <walters@verbum.org>
* Copyright (C) 2022 Igalia S.L.
*
* SPDX-License-Identifier: LGPL-2.0+
*
* This library 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 <https://www.gnu.org/licenses/>.
*
* Author: Colin Walters <walters@verbum.org>
*/
#include "config.h"
#include <glib.h>
#include "ostree-fetcher.h"
#include "libglnx.h"
void
_ostree_fetcher_uri_free (OstreeFetcherURI *uri)
{
if (uri)
g_uri_unref ((GUri*)uri);
}
OstreeFetcherURI *
_ostree_fetcher_uri_parse (const char *str,
GError **error)
{
GUri *uri = NULL;
#if GLIB_CHECK_VERSION(2, 68, 0)
uri = g_uri_parse (str, G_URI_FLAGS_HAS_PASSWORD | G_URI_FLAGS_ENCODED | G_URI_FLAGS_SCHEME_NORMALIZE, error);
#else
/* perform manual scheme normalization for older glib */
uri = g_uri_parse (str, G_URI_FLAGS_HAS_PASSWORD | G_URI_FLAGS_ENCODED, error);
if (uri)
{
GUri *nuri = NULL;
switch (g_uri_get_port (uri))
{
case 21:
if (!strcmp (g_uri_get_scheme (uri), "ftp"))
break;
return (OstreeFetcherURI*)uri;
case 80:
if (!strcmp (g_uri_get_scheme (uri), "http"))
break;
return (OstreeFetcherURI*)uri;
case 443:
if (!strcmp (g_uri_get_scheme (uri), "https"))
break;
return (OstreeFetcherURI*)uri;
default:
return (OstreeFetcherURI*)uri;
}
nuri = g_uri_build_with_user (g_uri_get_flags (uri), "http",
g_uri_get_user (uri),
g_uri_get_password (uri),
NULL,
g_uri_get_host (uri), -1,
g_uri_get_path (uri),
g_uri_get_query (uri),
g_uri_get_fragment (uri));
g_uri_unref (uri);
uri = nuri;
}
#endif
return (OstreeFetcherURI*)uri;
}
static OstreeFetcherURI *
_ostree_fetcher_uri_new_path_internal (OstreeFetcherURI *uri,
gboolean extend,
const char *path)
{
GUri *guri = (GUri*)uri;
const char *opath = g_uri_get_path (guri);
g_autofree char *newpath = NULL;
if (path)
{
if (extend)
{
newpath = g_build_filename (opath, path, NULL);
opath = newpath;
}
else
{
opath = path;
}
}
return (OstreeFetcherURI*)g_uri_build_with_user (g_uri_get_flags (guri),
g_uri_get_scheme (guri),
g_uri_get_user (guri),
g_uri_get_password (guri),
NULL,
g_uri_get_host (guri),
g_uri_get_port (guri),
opath,
g_uri_get_query (guri),
g_uri_get_fragment (guri));
}
OstreeFetcherURI *
_ostree_fetcher_uri_new_path (OstreeFetcherURI *uri,
const char *path)
{
return _ostree_fetcher_uri_new_path_internal (uri, FALSE, path);
}
OstreeFetcherURI *
_ostree_fetcher_uri_new_subpath (OstreeFetcherURI *uri,
const char *subpath)
{
return _ostree_fetcher_uri_new_path_internal (uri, TRUE, subpath);
}
OstreeFetcherURI *
_ostree_fetcher_uri_clone (OstreeFetcherURI *uri)
{
return _ostree_fetcher_uri_new_subpath (uri, NULL);
}
char *
_ostree_fetcher_uri_get_scheme (OstreeFetcherURI *uri)
{
return g_strdup (g_uri_get_scheme ((GUri*)uri));
}
char *
_ostree_fetcher_uri_get_path (OstreeFetcherURI *uri)
{
return g_strdup (g_uri_get_path ((GUri*)uri));
}
char *
_ostree_fetcher_uri_to_string (OstreeFetcherURI *uri)
{
return g_uri_to_string_partial ((GUri*)uri, G_URI_HIDE_PASSWORD);
}
/* Only accept http, https, and file; particularly curl has a ton of other
* backends like sftp that we don't want, and this also gracefully filters
* out invalid input.
*/
gboolean
_ostree_fetcher_uri_validate (OstreeFetcherURI *uri, GError **error)
{
const char *scheme = g_uri_get_scheme ((GUri*)uri);
// TODO only allow file if explicitly requested by a higher level
if (!(g_str_equal (scheme, "http") || g_str_equal (scheme, "https") || g_str_equal (scheme, "file")))
{
g_autofree char *s = _ostree_fetcher_uri_to_string (uri);
return glnx_throw (error, "Invalid URI scheme in %s", s);
}
return TRUE;
}
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