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/* -*- Mode: C; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
* GIO - GLib Input, Output and Streaming Library
*
* Copyright 2021 Igalia S.L.
*
* 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 2.1 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/>.
*
* In addition, when the library is used with OpenSSL, a special
* exception applies. Refer to the LICENSE_EXCEPTION file for details.
*/
#include "config.h"
#ifdef HAVE_RTLD_NOLOAD
#include <dlfcn.h>
#endif
#include "gtlshttp.h"
typedef gpointer SoupSession;
typedef gpointer SoupMessage;
static SoupSession *(*soup_session_new)(void);
static SoupMessage *(*soup_message_new)(const char *method, const char *uri);
static GInputStream *(*soup_session_send)(SoupSession *, SoupMessage *, GCancellable *, GError **);
static gsize libsoup_initialized;
static GModule *libsoup_module;
#define LIBSOUP_3_SONAME "libsoup-3.0.so.0"
#define LIBSOUP_2_SONAME "libsoup-2.4.so.1"
static void
init_libsoup (void)
{
const char *libsoup_sonames[3] = { 0 };
g_assert (g_module_supported ());
#ifdef HAVE_RTLD_NOLOAD
{
gpointer handle = NULL;
/* In order to avoid causing conflicts we detect if libsoup 2 or 3 is loaded already.
* If so use that. Otherwise we will try to load our own version to use preferring 3. */
if ((handle = dlopen (LIBSOUP_3_SONAME, RTLD_NOW | RTLD_NOLOAD)))
libsoup_sonames[0] = LIBSOUP_3_SONAME;
else if ((handle = dlopen (LIBSOUP_2_SONAME, RTLD_NOW | RTLD_NOLOAD)))
libsoup_sonames[0] = LIBSOUP_2_SONAME;
else
{
libsoup_sonames[0] = LIBSOUP_3_SONAME;
libsoup_sonames[1] = LIBSOUP_2_SONAME;
}
g_clear_pointer (&handle, dlclose);
}
#else
#ifdef G_OS_WIN32
#ifdef _MSC_VER
libsoup_sonames[0] = "soup-3.0-0.dll";
libsoup_sonames[1] = "soup-2.4-1.dll";
#else
libsoup_sonames[0] = "libsoup-3.0.dll";
libsoup_sonames[1] = "libsoup-2.4.dll";
#endif
#else
libsoup_sonames[0] = LIBSOUP_3_SONAME;
libsoup_sonames[1] = LIBSOUP_2_SONAME;
#endif
#endif
for (guint i = 0; libsoup_sonames[i]; i++)
{
libsoup_module = g_module_open (libsoup_sonames[i], G_MODULE_BIND_LAZY | G_MODULE_BIND_LOCAL);
if (libsoup_module)
{
g_debug ("Loaded %s", g_module_name (libsoup_module));
if (!g_module_symbol (libsoup_module, "soup_session_new", (gpointer *)&soup_session_new) ||
!g_module_symbol (libsoup_module, "soup_message_new", (gpointer *)&soup_message_new) ||
!g_module_symbol (libsoup_module, "soup_session_send", (gpointer *)&soup_session_send))
{
g_debug ("Failed to find all libsoup symbols");
g_clear_pointer (&libsoup_module, g_module_close);
continue;
}
break;
}
}
if (!libsoup_module)
g_debug ("Failed to load libsoup");
}
/**
* g_tls_request_uri:
* @uri: An HTTP URI to request
* @cancellable: (nullable): A #GCancellable
* @error: A #GError
*
* Synchronously requests an HTTP uri using the best available method.
*
* Note this is thread-safe.
*
* Returns: A #GInputStream of the response body or %NULL on failure
*/
GInputStream *
g_tls_request_uri (const char *uri,
GCancellable *cancellable,
GError **error)
{
GInputStream *istream = NULL;
if (g_once_init_enter (&libsoup_initialized))
{
init_libsoup ();
g_once_init_leave (&libsoup_initialized, TRUE);
}
if (libsoup_module)
{
SoupSession *session = soup_session_new ();
SoupMessage *message = soup_message_new ("GET", uri);
if (!message)
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED, "Failed to parse URI \"%s\"", uri);
else
{
istream = soup_session_send (session, message, cancellable, error);
g_object_unref (message);
}
g_object_unref (session);
}
else
{
GFile *file = g_file_new_for_uri (uri);
istream = G_INPUT_STREAM (g_file_read (file, cancellable, error));
g_object_unref (file);
}
return istream;
}
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