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flatpak-builder/app/flatpak-builtins-utils.c

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/*
* Copyright © 2014 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 2.1 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 <glib/gi18n.h>
#include <gio/gunixinputstream.h>
#include "flatpak-chain-input-stream.h"
#include "flatpak-builtins-utils.h"
#include "flatpak-utils.h"
gboolean
looks_like_branch (const char *branch)
{
const char *dot;
/* In particular, / is not a valid branch char, so
this lets us distinguish full or partial refs as
non-branches. */
if (!flatpak_is_valid_branch (branch, NULL))
return FALSE;
/* Dots are allowed in branches, but not really used much, while
app ids require at least two, so thats a good check to
distinguish the two */
dot = strchr (branch, '.');
if (dot != NULL)
{
if (strchr (dot + 1, '.') != NULL)
return FALSE;
}
return TRUE;
}
static SoupSession *
get_soup_session (void)
{
static SoupSession *soup_session = NULL;
if (soup_session == NULL)
{
const char *http_proxy;
soup_session = soup_session_new_with_options (SOUP_SESSION_USER_AGENT, "flatpak-builder ",
SOUP_SESSION_SSL_USE_SYSTEM_CA_FILE, TRUE,
SOUP_SESSION_USE_THREAD_CONTEXT, TRUE,
SOUP_SESSION_TIMEOUT, 60,
SOUP_SESSION_IDLE_TIMEOUT, 60,
NULL);
http_proxy = g_getenv ("http_proxy");
if (http_proxy)
{
g_autoptr(SoupURI) proxy_uri = soup_uri_new (http_proxy);
if (!proxy_uri)
g_warning ("Invalid proxy URI '%s'", http_proxy);
else
g_object_set (soup_session, SOUP_SESSION_PROXY_URI, proxy_uri, NULL);
}
}
return soup_session;
}
GBytes *
download_uri (const char *url,
GError **error)
{
SoupSession *session;
g_autoptr(SoupRequest) req = NULL;
g_autoptr(GInputStream) input = NULL;
g_autoptr(GOutputStream) out = NULL;
session = get_soup_session ();
req = soup_session_request (session, url, error);
if (req == NULL)
return NULL;
input = soup_request_send (req, NULL, error);
if (input == NULL)
return NULL;
out = g_memory_output_stream_new_resizable ();
if (!g_output_stream_splice (out,
input,
G_OUTPUT_STREAM_SPLICE_CLOSE_TARGET | G_OUTPUT_STREAM_SPLICE_CLOSE_SOURCE,
NULL,
error))
return NULL;
return g_memory_output_stream_steal_as_bytes (G_MEMORY_OUTPUT_STREAM (out));
}
FlatpakDir *
flatpak_find_installed_pref (const char *pref, FlatpakKinds kinds, const char *default_arch, const char *default_branch,
gboolean search_all, gboolean search_user, gboolean search_system, char **search_installations,
char **out_ref, GCancellable *cancellable, GError **error)
{
g_autofree char *id = NULL;
g_autofree char *arch = NULL;
g_autofree char *branch = NULL;
g_autoptr(GError) lookup_error = NULL;
FlatpakDir *dir = NULL;
g_autofree char *ref = NULL;
FlatpakKinds kind = 0;
g_autoptr(FlatpakDir) user_dir = NULL;
g_autoptr(FlatpakDir) system_dir = NULL;
g_autoptr(GPtrArray) system_dirs = NULL;
if (!flatpak_split_partial_ref_arg (pref, kinds, default_arch, default_branch,
&kinds, &id, &arch, &branch, error))
return NULL;
if (search_user || search_all)
{
user_dir = flatpak_dir_get_user ();
ref = flatpak_dir_find_installed_ref (user_dir,
id,
branch,
arch,
kinds, &kind,
&lookup_error);
if (ref)
dir = user_dir;
if (g_error_matches (lookup_error, G_IO_ERROR, G_IO_ERROR_FAILED))
{
g_propagate_error (error, g_steal_pointer (&lookup_error));
return NULL;
}
}
if (ref == NULL && search_all)
{
int i;
system_dirs = flatpak_dir_get_system_list (cancellable, error);
if (system_dirs == NULL)
return FALSE;
for (i = 0; i < system_dirs->len; i++)
{
FlatpakDir *system_dir = g_ptr_array_index (system_dirs, i);
g_clear_error (&lookup_error);
ref = flatpak_dir_find_installed_ref (system_dir,
id,
branch,
arch,
kinds, &kind,
&lookup_error);
if (ref)
{
dir = system_dir;
break;
}
if (g_error_matches (lookup_error, G_IO_ERROR, G_IO_ERROR_FAILED))
{
g_propagate_error (error, g_steal_pointer (&lookup_error));
return NULL;
}
}
}
else
{
if (ref == NULL && search_installations != NULL)
{
int i = 0;
for (i = 0; search_installations[i] != NULL; i++)
{
g_autoptr(FlatpakDir) installation_dir = NULL;
installation_dir = flatpak_dir_get_system_by_id (search_installations[i], cancellable, error);
if (installation_dir == NULL)
return FALSE;
if (installation_dir)
{
g_clear_error (&lookup_error);
ref = flatpak_dir_find_installed_ref (installation_dir,
id,
branch,
arch,
kinds, &kind,
&lookup_error);
if (ref)
{
dir = installation_dir;
break;
}
if (g_error_matches (lookup_error, G_IO_ERROR, G_IO_ERROR_FAILED))
{
g_propagate_error (error, g_steal_pointer (&lookup_error));
return NULL;
}
}
}
}
if (ref == NULL && search_system)
{
system_dir = flatpak_dir_get_system_default ();
g_clear_error (&lookup_error);
ref = flatpak_dir_find_installed_ref (system_dir,
id,
branch,
arch,
kinds, &kind,
&lookup_error);
if (ref)
dir = system_dir;
}
}
if (ref == NULL)
{
g_propagate_error (error, g_steal_pointer (&lookup_error));
return NULL;
}
*out_ref = g_steal_pointer (&ref);
return g_object_ref (dir);
}
static gboolean
open_source_stream (char **gpg_import,
GInputStream **out_source_stream,
GCancellable *cancellable,
GError **error)
{
g_autoptr(GInputStream) source_stream = NULL;
guint n_keyrings = 0;
g_autoptr(GPtrArray) streams = NULL;
if (gpg_import != NULL)
n_keyrings = g_strv_length (gpg_import);
guint ii;
streams = g_ptr_array_new_with_free_func (g_object_unref);
for (ii = 0; ii < n_keyrings; ii++)
{
GInputStream *input_stream = NULL;
if (strcmp (gpg_import[ii], "-") == 0)
{
input_stream = g_unix_input_stream_new (STDIN_FILENO, FALSE);
}
else
{
g_autoptr(GFile) file = g_file_new_for_commandline_arg (gpg_import[ii]);
input_stream = G_INPUT_STREAM (g_file_read (file, cancellable, error));
if (input_stream == NULL)
{
g_prefix_error (error, "The file %s specified for --gpg-import was not found: ", gpg_import[ii]);
return FALSE;
}
}
/* Takes ownership. */
g_ptr_array_add (streams, input_stream);
}
/* Chain together all the --keyring options as one long stream. */
source_stream = (GInputStream *) flatpak_chain_input_stream_new (streams);
*out_source_stream = g_steal_pointer (&source_stream);
return TRUE;
}
GBytes *
flatpak_load_gpg_keys (char **gpg_import,
GCancellable *cancellable,
GError **error)
{
g_autoptr(GInputStream) input_stream = NULL;
g_autoptr(GOutputStream) output_stream = NULL;
gssize n_bytes_written;
if (!open_source_stream (gpg_import, &input_stream, cancellable, error))
return FALSE;
output_stream = g_memory_output_stream_new_resizable ();
n_bytes_written = g_output_stream_splice (output_stream, input_stream,
G_OUTPUT_STREAM_SPLICE_CLOSE_SOURCE |
G_OUTPUT_STREAM_SPLICE_CLOSE_TARGET,
NULL, error);
if (n_bytes_written < 0)
return NULL;
return g_memory_output_stream_steal_as_bytes (G_MEMORY_OUTPUT_STREAM (output_stream));
}
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