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7ad0f4cdd6
These are the protocols that the provider plugin may support. The origins must be queried independently whether or not they support any given protocol. Example: A SIP origin/account may or may not support the "tel" protocol.
505 lines
14 KiB
C
505 lines
14 KiB
C
/*
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* Copyright (C) 2021 Purism SPC
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*
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* This file is part of Calls.
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*
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* Calls is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Calls is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Calls. If not, see <http://www.gnu.org/licenses/>.
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*
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* Author: Evangelos Ribeiro Tzaras <evangelos.tzaras@puri.sm>
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*
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* SPDX-License-Identifier: GPL-3.0-or-later
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*
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*/
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#define G_LOG_DOMAIN "CallsSipProvider"
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#define SIP_ACCOUNT_FILE "sip-account.cfg"
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#include "calls-account-provider.h"
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#include "calls-credentials.h"
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#include "calls-message-source.h"
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#include "calls-provider.h"
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#include "calls-sip-enums.h"
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#include "calls-sip-origin.h"
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#include "calls-sip-provider.h"
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#include "calls-sip-util.h"
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#include "config.h"
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#include <libpeas/peas.h>
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#include <sofia-sip/nua.h>
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#include <sofia-sip/su_glib.h>
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static const char * const supported_protocols[] = {
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"tel",
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"sip",
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"sips",
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NULL
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};
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/**
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* SECTION:sip-provider
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* @short_description: A #CallsProvider for the SIP protocol
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* @Title: CallsSipProvider
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*
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* #CallsSipProvider is derived from #CallsProvider and is responsible
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* for setting up the sofia-sip stack.
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*/
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enum {
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PROP_0,
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PROP_SIP_STATE,
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PROP_LAST_PROP,
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};
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static GParamSpec *props[PROP_LAST_PROP];
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struct _CallsSipProvider
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{
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CallsProvider parent_instance;
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GListStore *origins;
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GHashTable *credentials; /* key = credentials, value = origin */
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/* SIP */
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CallsSipContext *ctx;
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SipEngineState sip_state;
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gchar *filename;
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};
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static void calls_sip_provider_message_source_interface_init (CallsMessageSourceInterface *iface);
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static void calls_sip_provider_account_provider_interface_init (CallsAccountProviderInterface *iface);
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G_DEFINE_DYNAMIC_TYPE_EXTENDED
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(CallsSipProvider, calls_sip_provider, CALLS_TYPE_PROVIDER, 0,
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G_IMPLEMENT_INTERFACE_DYNAMIC (CALLS_TYPE_MESSAGE_SOURCE,
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calls_sip_provider_message_source_interface_init)
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G_IMPLEMENT_INTERFACE_DYNAMIC (CALLS_TYPE_ACCOUNT_PROVIDER,
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calls_sip_provider_account_provider_interface_init));
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static void
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calls_sip_provider_load_accounts (CallsSipProvider *self)
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{
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g_autoptr (GError) error = NULL;
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g_autoptr (GKeyFile) key_file = g_key_file_new ();
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gchar **groups = NULL;
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g_assert (CALLS_IS_SIP_PROVIDER (self));
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if (!g_key_file_load_from_file (key_file, self->filename, G_KEY_FILE_NONE, &error)) {
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g_warning ("Error loading key file: %s", error->message);
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return;
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}
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groups = g_key_file_get_groups (key_file, NULL);
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for (gsize i = 0; groups[i] != NULL; i++) {
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g_autoptr (CallsCredentials) credentials = calls_credentials_new ();
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gint local_port = 0;
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gboolean direct_connection =
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g_key_file_get_boolean (key_file, groups[i], "Direct", NULL);
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if (direct_connection) {
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g_object_set (credentials, "name", groups[i], NULL);
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local_port = g_key_file_get_integer (key_file, groups[i], "LocalPort", NULL);
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/* direct connection mode, needs a local port set */
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if (local_port == 0)
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local_port = 5060;
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} else {
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calls_credentials_update_from_keyfile (credentials, key_file, groups[i]);
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}
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g_debug ("Adding origin for SIP account %s", groups[i]);
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calls_sip_provider_add_origin (self, g_steal_pointer (&credentials), local_port, direct_connection);
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}
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g_strfreev (groups);
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}
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static const char *
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calls_sip_provider_get_name (CallsProvider *provider)
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{
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return "SIP provider";
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}
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static const char *
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calls_sip_provider_get_status (CallsProvider *provider)
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{
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CallsSipProvider *self = CALLS_SIP_PROVIDER (provider);
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switch (self->sip_state) {
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case SIP_ENGINE_ERROR:
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return "Error";
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case SIP_ENGINE_READY:
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return "Normal";
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default:
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break;
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}
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return "Unknown";
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}
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static GListModel *
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calls_sip_provider_get_origins (CallsProvider *provider)
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{
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CallsSipProvider *self = CALLS_SIP_PROVIDER (provider);
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return G_LIST_MODEL (self->origins);
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}
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static const char * const *
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calls_sip_provider_get_protocols (CallsProvider *provider)
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{
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return supported_protocols;
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}
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static void
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calls_sip_provider_deinit_sip (CallsSipProvider *self)
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{
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GSource *gsource;
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if (self->sip_state == SIP_ENGINE_NULL)
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return;
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/* clean up sofia */
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if (!self->ctx)
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goto bail;
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if (self->ctx->root) {
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gsource = su_glib_root_gsource (self->ctx->root);
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g_source_destroy (gsource);
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su_root_destroy (self->ctx->root);
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if (su_home_unref (self->ctx->home) != 1)
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g_error ("Error in su_home_unref ()");
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}
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g_clear_pointer (&self->ctx, g_free);
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bail:
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self->sip_state = SIP_ENGINE_NULL;
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g_object_notify_by_pspec (G_OBJECT (self), props[PROP_SIP_STATE]);
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}
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static gboolean
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calls_sip_provider_init_sofia (CallsSipProvider *self,
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GError **error)
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{
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GSource *gsource;
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g_assert (CALLS_SIP_PROVIDER (self));
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self->ctx = g_new0 (CallsSipContext, 1);
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if (self->ctx == NULL) {
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g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
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"Could not allocate memory for the SIP context");
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goto err;
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}
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if (su_init () != su_success) {
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g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
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"su_init () failed");
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goto err;
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}
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if (su_home_init (self->ctx->home) != su_success) {
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g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
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"su_home_init () failed");
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goto err;
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}
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self->ctx->root = su_glib_root_create (self);
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if (self->ctx->root == NULL) {
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g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
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"su_glib_root_create () failed");
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goto err;
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}
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gsource = su_glib_root_gsource (self->ctx->root);
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if (gsource == NULL) {
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g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
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"su_glib_root_gsource () failed");
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goto err;
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}
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g_source_attach (gsource, NULL);
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self->sip_state = SIP_ENGINE_READY;
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g_object_notify_by_pspec (G_OBJECT (self), props[PROP_SIP_STATE]);
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return TRUE;
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err:
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self->sip_state = SIP_ENGINE_ERROR;
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g_object_notify_by_pspec (G_OBJECT (self), props[PROP_SIP_STATE]);
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return FALSE;
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}
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static void
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calls_sip_provider_get_property (GObject *object,
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guint property_id,
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GValue *value,
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GParamSpec *pspec)
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{
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CallsSipProvider *self = CALLS_SIP_PROVIDER (object);
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switch (property_id) {
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case PROP_SIP_STATE:
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g_value_set_enum (value, self->sip_state);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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static void
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calls_sip_provider_constructed (GObject *object)
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{
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CallsSipProvider *self = CALLS_SIP_PROVIDER (object);
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g_autoptr (GError) error = NULL;
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gboolean auto_load_accounts = TRUE;
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const gchar *env_do_not_auto_load;
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env_do_not_auto_load = g_getenv ("CALLS_SIP_DO_NOT_AUTOLOAD");
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if (env_do_not_auto_load && env_do_not_auto_load[0] != '\0')
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auto_load_accounts = FALSE;
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if (calls_sip_provider_init_sofia (self, &error)) {
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if (auto_load_accounts)
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calls_sip_provider_load_accounts (self);
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}
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else
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g_warning ("Could not initialize sofia stack: %s", error->message);
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G_OBJECT_CLASS (calls_sip_provider_parent_class)->constructed (object);
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}
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static void
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calls_sip_provider_dispose (GObject *object)
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{
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CallsSipProvider *self = CALLS_SIP_PROVIDER (object);
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g_list_store_remove_all (self->origins);
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g_clear_object (&self->origins);
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g_hash_table_remove_all (self->credentials);
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g_clear_pointer (&self->credentials, g_hash_table_unref);
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g_clear_pointer (&self->filename, g_free);
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calls_sip_provider_deinit_sip (self);
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G_OBJECT_CLASS (calls_sip_provider_parent_class)->dispose (object);
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}
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static void
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calls_sip_provider_class_finalize (CallsSipProviderClass *klass)
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{
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}
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static void
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calls_sip_provider_class_init (CallsSipProviderClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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CallsProviderClass *provider_class = CALLS_PROVIDER_CLASS (klass);
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object_class->constructed = calls_sip_provider_constructed;
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object_class->dispose = calls_sip_provider_dispose;
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object_class->get_property = calls_sip_provider_get_property;
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provider_class->get_name = calls_sip_provider_get_name;
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provider_class->get_status = calls_sip_provider_get_status;
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provider_class->get_origins = calls_sip_provider_get_origins;
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provider_class->get_protocols = calls_sip_provider_get_protocols;
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props[PROP_SIP_STATE] =
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g_param_spec_enum ("sip-state",
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"SIP state",
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"The state of the SIP engine",
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SIP_TYPE_ENGINE_STATE,
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SIP_ENGINE_NULL,
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G_PARAM_READABLE);
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g_object_class_install_properties (object_class, PROP_LAST_PROP, props);
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}
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static void
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calls_sip_provider_message_source_interface_init (CallsMessageSourceInterface *iface)
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{
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}
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static gboolean
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add_account (CallsAccountProvider *acc_provider,
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CallsCredentials *credentials)
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{
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CallsSipProvider *self;
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g_assert (CALLS_IS_ACCOUNT_PROVIDER (acc_provider));
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g_assert (CALLS_IS_SIP_PROVIDER (acc_provider));
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g_assert (CALLS_IS_CREDENTIALS (credentials));
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self = CALLS_SIP_PROVIDER (acc_provider);
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return !!calls_sip_provider_add_origin (self, credentials, 0, FALSE);
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}
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static gboolean
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remove_account (CallsAccountProvider *acc_provider,
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CallsCredentials *credentials)
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{
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CallsSipProvider *self;
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CallsSipOrigin *origin;
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guint position;
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g_assert (CALLS_IS_ACCOUNT_PROVIDER (acc_provider));
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g_assert (CALLS_IS_SIP_PROVIDER (acc_provider));
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g_assert (CALLS_IS_CREDENTIALS (credentials));
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self = CALLS_SIP_PROVIDER (acc_provider);
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origin = g_hash_table_lookup (self->credentials, credentials);
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if (origin == NULL)
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return FALSE;
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if (!g_list_store_find (self->origins, origin, &position))
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return FALSE;
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g_hash_table_remove (self->credentials, credentials);
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g_list_store_remove (self->origins, position);
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return TRUE;
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}
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static CallsAccount *
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get_account (CallsAccountProvider *acc_provider,
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CallsCredentials *credentials)
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{
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CallsSipProvider *self;
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CallsSipOrigin *origin;
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g_assert (CALLS_IS_ACCOUNT_PROVIDER (acc_provider));
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g_assert (CALLS_IS_SIP_PROVIDER (acc_provider));
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g_assert (CALLS_IS_CREDENTIALS (credentials));
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self = CALLS_SIP_PROVIDER (acc_provider);
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origin = g_hash_table_lookup (self->credentials, credentials);
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if (origin)
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return CALLS_ACCOUNT (origin);
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else
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return NULL;
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}
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static void
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calls_sip_provider_account_provider_interface_init (CallsAccountProviderInterface *iface)
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{
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iface->add_account = add_account;
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iface->remove_account = remove_account;
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iface->get_account = get_account;
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}
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static void
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calls_sip_provider_init (CallsSipProvider *self)
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{
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const char *filename_env = g_getenv ("CALLS_SIP_ACCOUNT_FILE");
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self->credentials =
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g_hash_table_new_full (NULL, NULL, g_object_unref, g_object_unref);
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self->origins = g_list_store_new (CALLS_TYPE_ORIGIN);
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if (filename_env && filename_env[0] != '\0')
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self->filename = g_strdup (filename_env);
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else
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self->filename = g_build_filename (g_get_user_config_dir (),
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APP_DATA_NAME,
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SIP_ACCOUNT_FILE,
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NULL);
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}
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/**
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* calls_sip_provider_add_origin:
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* @self: A #CallsSipProvider
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* @credentials: A #CallsCredentials
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* @local_port: The local port to bind to or 0
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* @direct_connection: %TRUE to use a direct connection to peers, %FALSE otherwise
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*
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* Adds a new origin (SIP account). If @direct_connection is set
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* some properties of @credentials can be set automatically
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* (f.e. use the username and hostname).
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*
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* Return: (transfer none): A #CallsSipOrigin
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*/
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CallsSipOrigin *
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calls_sip_provider_add_origin (CallsSipProvider *self,
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CallsCredentials *credentials,
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gint local_port,
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gboolean direct_connection)
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{
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g_autoptr (CallsSipOrigin) origin = NULL;
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g_return_val_if_fail (CALLS_IS_SIP_PROVIDER (self), NULL);
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g_return_val_if_fail (CALLS_IS_CREDENTIALS (credentials), NULL);
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if (g_hash_table_contains (self->credentials, credentials)) {
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g_autofree char *name = NULL;
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g_object_get (credentials, "name", &name, NULL);
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g_warning ("Cannot add credentials with name '%s' multiple times", name);
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return NULL;
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}
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origin = calls_sip_origin_new (self->ctx,
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credentials,
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local_port,
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direct_connection);
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g_hash_table_insert (self->credentials,
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g_object_ref (credentials), g_object_ref (origin));
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g_list_store_append (self->origins, origin);
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return origin;
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}
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CallsSipProvider *
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calls_sip_provider_new ()
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{
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return g_object_new (CALLS_TYPE_SIP_PROVIDER, NULL);
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}
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G_MODULE_EXPORT void
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peas_register_types (PeasObjectModule *module)
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{
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calls_sip_provider_register_type (G_TYPE_MODULE (module));
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peas_object_module_register_extension_type (module,
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CALLS_TYPE_PROVIDER,
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CALLS_TYPE_SIP_PROVIDER);
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}
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