Adding upstream version 14.2.upstream/14.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 492 insertions, 0 deletions

diff --git a/src/daemon/server-lookup.c b/src/daemon/server-lookup.c
new file mode 100644
index 0000000..ca390c7
--- /dev/null
+++ b/src/daemon/server-lookup.c
@@ -0,0 +1,492 @@
+/***
+  This file is part of PulseAudio.
+
+  Copyright 2009 Tanu Kaskinen
+
+  PulseAudio 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.
+
+  PulseAudio 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
+  General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <dbus/dbus.h>
+
+#include <pulse/client-conf.h>
+#include <pulse/xmalloc.h>
+
+#include <pulsecore/core.h>
+#include <pulsecore/core-util.h>
+#include <pulsecore/dbus-shared.h>
+#include <pulsecore/macro.h>
+#include <pulsecore/protocol-dbus.h>
+
+#include "server-lookup.h"
+
+#define OBJECT_PATH "/org/pulseaudio/server_lookup1"
+#define INTERFACE "org.PulseAudio.ServerLookup1"
+
+struct pa_dbusobj_server_lookup {
+    pa_core *core;
+    pa_dbus_connection *conn;
+    bool path_registered;
+};
+
+static const char introspection[] =
+    DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE
+    "<node>"
+    " <!-- If you are looking for documentation make sure to check out\n"
+    "      http://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/Developer/Clients/DBus/ -->\n"
+    " <interface name=\"" INTERFACE "\">\n"
+    "  <property name=\"Address\" type=\"s\" access=\"read\"/>\n"
+    " </interface>\n"
+    " <interface name=\"" DBUS_INTERFACE_INTROSPECTABLE "\">\n"
+    "  <method name=\"Introspect\">\n"
+    "   <arg name=\"data\" type=\"s\" direction=\"out\"/>\n"
+    "  </method>\n"
+    " </interface>\n"
+    " <interface name=\"" DBUS_INTERFACE_PROPERTIES "\">\n"
+    "  <method name=\"Get\">\n"
+    "   <arg name=\"interface_name\" type=\"s\" direction=\"in\"/>\n"
+    "   <arg name=\"property_name\" type=\"s\" direction=\"in\"/>\n"
+    "   <arg name=\"value\" type=\"v\" direction=\"out\"/>\n"
+    "  </method>\n"
+    "  <method name=\"Set\">\n"
+    "   <arg name=\"interface_name\" type=\"s\" direction=\"in\"/>\n"
+    "   <arg name=\"property_name\" type=\"s\" direction=\"in\"/>\n"
+    "   <arg name=\"value\" type=\"v\" direction=\"in\"/>\n"
+    "  </method>\n"
+    "  <method name=\"GetAll\">\n"
+    "   <arg name=\"interface_name\" type=\"s\" direction=\"in\"/>\n"
+    "   <arg name=\"props\" type=\"a{sv}\" direction=\"out\"/>\n"
+    "  </method>\n"
+    " </interface>\n"
+    "</node>\n";
+
+static void unregister_cb(DBusConnection *conn, void *user_data) {
+    pa_dbusobj_server_lookup *sl = user_data;
+
+    pa_assert(sl);
+    pa_assert(sl->path_registered);
+
+    sl->path_registered = false;
+}
+
+static DBusHandlerResult handle_introspect(DBusConnection *conn, DBusMessage *msg, pa_dbusobj_server_lookup *sl) {
+    DBusHandlerResult r = DBUS_HANDLER_RESULT_HANDLED;
+    const char *i = introspection;
+    DBusMessage *reply = NULL;
+
+    pa_assert(conn);
+    pa_assert(msg);
+
+    if (!(reply = dbus_message_new_method_return(msg))) {
+        r = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+        goto finish;
+    }
+    if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &i, DBUS_TYPE_INVALID)) {
+        r = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+        goto finish;
+    }
+    if (!dbus_connection_send(conn, reply, NULL)) {
+        r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+        goto finish;
+    }
+
+finish:
+    if (reply)
+        dbus_message_unref(reply);
+
+    return r;
+}
+
+enum get_address_result_t {
+    SUCCESS,
+    SERVER_FROM_TYPE_FAILED
+};
+
+/* Caller frees the returned address. */
+static enum get_address_result_t get_address(pa_server_type_t server_type, char **address) {
+    enum get_address_result_t r = SUCCESS;
+    pa_client_conf *conf = pa_client_conf_new();
+
+    *address = NULL;
+
+    pa_client_conf_load(conf, false, false);
+
+    if (conf->default_dbus_server)
+        *address = pa_xstrdup(conf->default_dbus_server);
+    else if (!(*address = pa_get_dbus_address_from_server_type(server_type))) {
+        r = SERVER_FROM_TYPE_FAILED;
+        goto finish;
+    }
+
+finish:
+    pa_client_conf_free(conf);
+    return r;
+}
+
+static DBusHandlerResult handle_get_address(DBusConnection *conn, DBusMessage *msg, pa_dbusobj_server_lookup *sl) {
+    DBusHandlerResult r = DBUS_HANDLER_RESULT_HANDLED;
+    DBusMessage *reply = NULL;
+    char *address = NULL;
+    DBusMessageIter msg_iter;
+    DBusMessageIter variant_iter;
+
+    pa_assert(conn);
+    pa_assert(msg);
+    pa_assert(sl);
+
+    switch (get_address(sl->core->server_type, &address)) {
+        case SUCCESS:
+            if (!(reply = dbus_message_new_method_return(msg))) {
+                r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+                goto finish;
+            }
+            dbus_message_iter_init_append(reply, &msg_iter);
+            if (!dbus_message_iter_open_container(&msg_iter, DBUS_TYPE_VARIANT, "s", &variant_iter)) {
+                r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+                goto finish;
+            }
+            if (!dbus_message_iter_append_basic(&variant_iter, DBUS_TYPE_STRING, &address)) {
+                r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+                goto finish;
+            }
+            if (!dbus_message_iter_close_container(&msg_iter, &variant_iter)) {
+                r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+                goto finish;
+            }
+            if (!dbus_connection_send(conn, reply, NULL)) {
+                r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+                goto finish;
+            }
+            r = DBUS_HANDLER_RESULT_HANDLED;
+            goto finish;
+
+        case SERVER_FROM_TYPE_FAILED:
+            if (!(reply = dbus_message_new_error(msg, DBUS_ERROR_FAILED, "PulseAudio internal error: get_dbus_server_from_type() failed."))) {
+                r = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+                goto finish;
+            }
+            if (!dbus_connection_send(conn, reply, NULL)) {
+                r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+                goto finish;
+            }
+            r = DBUS_HANDLER_RESULT_HANDLED;
+            goto finish;
+
+        default:
+            pa_assert_not_reached();
+    }
+
+finish:
+    pa_xfree(address);
+    if (reply)
+        dbus_message_unref(reply);
+
+    return r;
+}
+
+static DBusHandlerResult handle_get(DBusConnection *conn, DBusMessage *msg, pa_dbusobj_server_lookup *sl) {
+    DBusHandlerResult r = DBUS_HANDLER_RESULT_HANDLED;
+    const char* interface;
+    const char* property;
+    DBusMessage *reply = NULL;
+
+    pa_assert(conn);
+    pa_assert(msg);
+    pa_assert(sl);
+
+    if (!dbus_message_get_args(msg, NULL, DBUS_TYPE_STRING, &interface, DBUS_TYPE_STRING, &property, DBUS_TYPE_INVALID)) {
+        if (!(reply = dbus_message_new_error(msg, DBUS_ERROR_INVALID_ARGS, "Invalid arguments"))) {
+            r = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+            goto finish;
+        }
+        if (!dbus_connection_send(conn, reply, NULL)) {
+            r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+            goto finish;
+        }
+        r = DBUS_HANDLER_RESULT_HANDLED;
+        goto finish;
+    }
+
+    if (*interface && !pa_streq(interface, INTERFACE)) {
+        r = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+        goto finish;
+    }
+
+    if (!pa_streq(property, "Address")) {
+        if (!(reply = dbus_message_new_error_printf(msg, PA_DBUS_ERROR_NO_SUCH_PROPERTY, "%s: No such property", property))) {
+            r = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+            goto finish;
+        }
+        if (!dbus_connection_send(conn, reply, NULL)) {
+            r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+            goto finish;
+        }
+        r = DBUS_HANDLER_RESULT_HANDLED;
+        goto finish;
+    }
+
+    r = handle_get_address(conn, msg, sl);
+
+finish:
+    if (reply)
+        dbus_message_unref(reply);
+
+    return r;
+}
+
+static DBusHandlerResult handle_set(DBusConnection *conn, DBusMessage *msg, pa_dbusobj_server_lookup *sl) {
+    DBusHandlerResult r = DBUS_HANDLER_RESULT_HANDLED;
+    const char* interface;
+    const char* property;
+    DBusMessage *reply = NULL;
+
+    pa_assert(conn);
+    pa_assert(msg);
+    pa_assert(sl);
+
+    if (!dbus_message_get_args(msg, NULL, DBUS_TYPE_STRING, &interface, DBUS_TYPE_STRING, &property, DBUS_TYPE_INVALID)) {
+        if (!(reply = dbus_message_new_error(msg, DBUS_ERROR_INVALID_ARGS, "Invalid arguments"))) {
+            r = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+            goto finish;
+        }
+        if (!dbus_connection_send(conn, reply, NULL)) {
+            r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+            goto finish;
+        }
+        r = DBUS_HANDLER_RESULT_HANDLED;
+        goto finish;
+    }
+
+    if (*interface && !pa_streq(interface, INTERFACE)) {
+        r = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+        goto finish;
+    }
+
+    if (!pa_streq(property, "Address")) {
+        if (!(reply = dbus_message_new_error_printf(msg, PA_DBUS_ERROR_NO_SUCH_PROPERTY, "%s: No such property", property))) {
+            r = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+            goto finish;
+        }
+        if (!dbus_connection_send(conn, reply, NULL)) {
+            r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+            goto finish;
+        }
+        r = DBUS_HANDLER_RESULT_HANDLED;
+        goto finish;
+    }
+
+    if (!(reply = dbus_message_new_error_printf(msg, DBUS_ERROR_ACCESS_DENIED, "%s: Property not settable", property))) {
+        r = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+        goto finish;
+    }
+    if (!dbus_connection_send(conn, reply, NULL)) {
+        r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+        goto finish;
+    }
+    r = DBUS_HANDLER_RESULT_HANDLED;
+
+finish:
+    if (reply)
+        dbus_message_unref(reply);
+
+    return r;
+}
+
+static DBusHandlerResult handle_get_all(DBusConnection *conn, DBusMessage *msg, pa_dbusobj_server_lookup *sl) {
+    DBusHandlerResult r = DBUS_HANDLER_RESULT_HANDLED;
+    DBusMessage *reply = NULL;
+    const char *property = "Address";
+    char *interface = NULL;
+    char *address = NULL;
+    DBusMessageIter msg_iter;
+    DBusMessageIter dict_iter;
+    DBusMessageIter dict_entry_iter;
+    DBusMessageIter variant_iter;
+
+    pa_assert(conn);
+    pa_assert(msg);
+    pa_assert(sl);
+
+    if (!dbus_message_get_args(msg, NULL, DBUS_TYPE_STRING, &interface, DBUS_TYPE_INVALID)) {
+        if (!(reply = dbus_message_new_error(msg, DBUS_ERROR_INVALID_ARGS, "Invalid arguments"))) {
+            r = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+            goto finish;
+        }
+        if (!dbus_connection_send(conn, reply, NULL)) {
+            r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+            goto finish;
+        }
+        r = DBUS_HANDLER_RESULT_HANDLED;
+        goto finish;
+    }
+
+    switch (get_address(sl->core->server_type, &address)) {
+        case SUCCESS:
+            if (!(reply = dbus_message_new_method_return(msg))) {
+                r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+                goto finish;
+            }
+            dbus_message_iter_init_append(reply, &msg_iter);
+            if (!dbus_message_iter_open_container(&msg_iter, DBUS_TYPE_ARRAY, "{sv}", &dict_iter)) {
+                r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+                goto finish;
+            }
+            if (!dbus_message_iter_open_container(&dict_iter, DBUS_TYPE_DICT_ENTRY, NULL, &dict_entry_iter)) {
+                r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+                goto finish;
+            }
+            if (!dbus_message_iter_append_basic(&dict_entry_iter, DBUS_TYPE_STRING, &property)) {
+                r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+                goto finish;
+            }
+            if (!dbus_message_iter_open_container(&dict_entry_iter, DBUS_TYPE_VARIANT, "s", &variant_iter)) {
+                r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+                goto finish;
+            }
+            if (!dbus_message_iter_append_basic(&variant_iter, DBUS_TYPE_STRING, &address)) {
+                r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+                goto finish;
+            }
+            if (!dbus_message_iter_close_container(&dict_entry_iter, &variant_iter)) {
+                r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+                goto finish;
+            }
+            if (!dbus_message_iter_close_container(&dict_iter, &dict_entry_iter)) {
+                r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+                goto finish;
+            }
+            if (!dbus_message_iter_close_container(&msg_iter, &dict_iter)) {
+                r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+                goto finish;
+            }
+            if (!dbus_connection_send(conn, reply, NULL)) {
+                r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+                goto finish;
+            }
+            r = DBUS_HANDLER_RESULT_HANDLED;
+            goto finish;
+
+        case SERVER_FROM_TYPE_FAILED:
+            if (!(reply = dbus_message_new_error(msg, DBUS_ERROR_FAILED, "PulseAudio internal error: get_dbus_server_from_type() failed."))) {
+                r = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+                goto finish;
+            }
+            if (!dbus_connection_send(conn, reply, NULL)) {
+                r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+                goto finish;
+            }
+            r = DBUS_HANDLER_RESULT_HANDLED;
+            goto finish;
+
+        default:
+            pa_assert_not_reached();
+    }
+
+finish:
+    pa_xfree(address);
+    if (reply)
+        dbus_message_unref(reply);
+
+    return r;
+}
+
+static DBusHandlerResult message_cb(DBusConnection *conn, DBusMessage *msg, void *user_data) {
+    pa_dbusobj_server_lookup *sl = user_data;
+
+    pa_assert(conn);
+    pa_assert(msg);
+    pa_assert(sl);
+
+    /* pa_log("Got message! type = %s   path = %s   iface = %s   member = %s   dest = %s", dbus_message_type_to_string(dbus_message_get_type(msg)), dbus_message_get_path(msg), dbus_message_get_interface(msg), dbus_message_get_member(msg), dbus_message_get_destination(msg)); */
+
+    if (dbus_message_get_type(msg) != DBUS_MESSAGE_TYPE_METHOD_CALL)
+        return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+
+    if (dbus_message_is_method_call(msg, DBUS_INTERFACE_INTROSPECTABLE, "Introspect") ||
+        (!dbus_message_get_interface(msg) && dbus_message_has_member(msg, "Introspect")))
+        return handle_introspect(conn, msg, sl);
+
+    if (dbus_message_is_method_call(msg, DBUS_INTERFACE_PROPERTIES, "Get") ||
+        (!dbus_message_get_interface(msg) && dbus_message_has_member(msg, "Get")))
+        return handle_get(conn, msg, sl);
+
+    if (dbus_message_is_method_call(msg, DBUS_INTERFACE_PROPERTIES, "Set") ||
+        (!dbus_message_get_interface(msg) && dbus_message_has_member(msg, "Set")))
+        return handle_set(conn, msg, sl);
+
+    if (dbus_message_is_method_call(msg, DBUS_INTERFACE_PROPERTIES, "GetAll") ||
+        (!dbus_message_get_interface(msg) && dbus_message_has_member(msg, "GetAll")))
+        return handle_get_all(conn, msg, sl);
+
+    return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+}
+
+static DBusObjectPathVTable vtable = {
+    .unregister_function = unregister_cb,
+    .message_function = message_cb,
+    .dbus_internal_pad1 = NULL,
+    .dbus_internal_pad2 = NULL,
+    .dbus_internal_pad3 = NULL,
+    .dbus_internal_pad4 = NULL
+};
+
+pa_dbusobj_server_lookup *pa_dbusobj_server_lookup_new(pa_core *c) {
+    pa_dbusobj_server_lookup *sl;
+    DBusError error;
+
+    dbus_error_init(&error);
+
+    sl = pa_xnew(pa_dbusobj_server_lookup, 1);
+    sl->core = c;
+    sl->path_registered = false;
+
+    if (!(sl->conn = pa_dbus_bus_get(c, DBUS_BUS_SESSION, &error)) || dbus_error_is_set(&error)) {
+        pa_log_warn("Unable to contact D-Bus: %s: %s", error.name, error.message);
+        goto fail;
+    }
+
+    if (!dbus_connection_register_object_path(pa_dbus_connection_get(sl->conn), OBJECT_PATH, &vtable, sl)) {
+        pa_log("dbus_connection_register_object_path() failed for " OBJECT_PATH ".");
+        goto fail;
+    }
+
+    sl->path_registered = true;
+
+    return sl;
+
+fail:
+    dbus_error_free(&error);
+
+    pa_dbusobj_server_lookup_free(sl);
+
+    return NULL;
+}
+
+void pa_dbusobj_server_lookup_free(pa_dbusobj_server_lookup *sl) {
+    pa_assert(sl);
+
+    if (sl->path_registered) {
+        pa_assert(sl->conn);
+        if (!dbus_connection_unregister_object_path(pa_dbus_connection_get(sl->conn), OBJECT_PATH))
+            pa_log_debug("dbus_connection_unregister_object_path() failed for " OBJECT_PATH ".");
+    }
+
+    if (sl->conn)
+        pa_dbus_connection_unref(sl->conn);
+
+    pa_xfree(sl);
+}