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dbus.c
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dbus.c
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/* copyright 2013 Sascha Kruse and contributors (see LICENSE for licensing information) */
#include <stdlib.h>
#include <stdio.h>
#include <glib.h>
#include <string.h>
#include <gio/gio.h>
#include "dunst.h"
#include "dbus.h"
#include "notification.h"
#include "utils.h"
#include "settings.h"
GDBusConnection *dbus_conn;
static GDBusNodeInfo *introspection_data = NULL;
static const char *introspection_xml =
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
"<node name=\"/org/freedesktop/Notifications\">"
" <interface name=\"org.freedesktop.Notifications\">"
" <method name=\"GetCapabilities\">"
" <arg direction=\"out\" name=\"capabilities\" type=\"as\"/>"
" </method>"
" <method name=\"Notify\">"
" <arg direction=\"in\" name=\"app_name\" type=\"s\"/>"
" <arg direction=\"in\" name=\"replaces_id\" type=\"u\"/>"
" <arg direction=\"in\" name=\"app_icon\" type=\"s\"/>"
" <arg direction=\"in\" name=\"summary\" type=\"s\"/>"
" <arg direction=\"in\" name=\"body\" type=\"s\"/>"
" <arg direction=\"in\" name=\"actions\" type=\"as\"/>"
" <arg direction=\"in\" name=\"hints\" type=\"a{sv}\"/>"
" <arg direction=\"in\" name=\"expire_timeout\" type=\"i\"/>"
" <arg direction=\"out\" name=\"id\" type=\"u\"/>"
" </method>"
" <method name=\"CloseNotification\">"
" <arg direction=\"in\" name=\"id\" type=\"u\"/>"
" </method>"
" <method name=\"GetServerInformation\">"
" <arg direction=\"out\" name=\"name\" type=\"s\"/>"
" <arg direction=\"out\" name=\"vendor\" type=\"s\"/>"
" <arg direction=\"out\" name=\"version\" type=\"s\"/>"
" <arg direction=\"out\" name=\"spec_version\" type=\"s\"/>"
" </method>"
" <signal name=\"NotificationClosed\">"
" <arg name=\"id\" type=\"u\"/>"
" <arg name=\"reason\" type=\"u\"/>"
" </signal>"
" <signal name=\"ActionInvoked\">"
" <arg name=\"id\" type=\"u\"/>"
" <arg name=\"action_key\" type=\"s\"/>"
" </signal>"
" </interface>"
"</node>";
static void onGetCapabilities(GDBusConnection * connection,
const gchar * sender,
const GVariant * parameters,
GDBusMethodInvocation * invocation);
static void onNotify(GDBusConnection * connection,
const gchar * sender,
GVariant * parameters, GDBusMethodInvocation * invocation);
static void onCloseNotification(GDBusConnection * connection,
const gchar * sender,
GVariant * parameters,
GDBusMethodInvocation * invocation);
static void onGetServerInformation(GDBusConnection * connection,
const gchar * sender,
const GVariant * parameters,
GDBusMethodInvocation * invocation);
void handle_method_call(GDBusConnection * connection,
const gchar * sender,
const gchar * object_path,
const gchar * interface_name,
const gchar * method_name,
GVariant * parameters,
GDBusMethodInvocation * invocation, gpointer user_data)
{
if (g_strcmp0(method_name, "GetCapabilities") == 0) {
onGetCapabilities(connection, sender, parameters, invocation);
} else if (g_strcmp0(method_name, "Notify") == 0) {
onNotify(connection, sender, parameters, invocation);
} else if (g_strcmp0(method_name, "CloseNotification") == 0) {
onCloseNotification(connection, sender, parameters, invocation);
} else if (g_strcmp0(method_name, "GetServerInformation") == 0) {
onGetServerInformation(connection, sender, parameters,
invocation);
} else {
printf("WARNING: sender: %s; unknown method_name: %s\n", sender,
method_name);
}
}
static void onGetCapabilities(GDBusConnection * connection,
const gchar * sender,
const GVariant * parameters,
GDBusMethodInvocation * invocation)
{
GVariantBuilder *builder;
GVariant *value;
builder = g_variant_builder_new(G_VARIANT_TYPE("as"));
g_variant_builder_add(builder, "s", "actions");
g_variant_builder_add(builder, "s", "body");
g_variant_builder_add(builder, "s", "body-markup");
value = g_variant_new("(as)", builder);
g_variant_builder_unref(builder);
g_dbus_method_invocation_return_value(invocation, value);
g_dbus_connection_flush(connection, NULL, NULL, NULL);
g_variant_unref(value);
}
static void onNotify(GDBusConnection * connection,
const gchar * sender,
GVariant * parameters, GDBusMethodInvocation * invocation)
{
gchar *appname = NULL;
guint replaces_id = 0;
gchar *icon = NULL;
gchar *summary = NULL;
gchar *body = NULL;
Actions *actions = malloc(sizeof(Actions));
if(actions == NULL) {
die("Unable to allocate memory", EXIT_FAILURE);
}
gint timeout = -1;
/* hints */
gint urgency = 1;
gint progress = -1;
gchar *fgcolor = NULL;
gchar *bgcolor = NULL;
gchar *category = NULL;
actions->actions = NULL;
actions->count = 0;
{
GVariantIter *iter = g_variant_iter_new(parameters);
GVariant *content;
GVariant *dict_value;
int idx = 0;
while ((content = g_variant_iter_next_value(iter))) {
switch (idx) {
case 0:
if (g_variant_is_of_type
(content, G_VARIANT_TYPE_STRING))
appname =
g_variant_dup_string(content, NULL);
break;
case 1:
if (g_variant_is_of_type
(content, G_VARIANT_TYPE_UINT32))
replaces_id =
g_variant_get_uint32(content);
break;
case 2:
if (g_variant_is_of_type
(content, G_VARIANT_TYPE_STRING))
icon =
g_variant_dup_string(content, NULL);
break;
case 3:
if (g_variant_is_of_type
(content, G_VARIANT_TYPE_STRING))
summary =
g_variant_dup_string(content, NULL);
break;
case 4:
if (g_variant_is_of_type
(content, G_VARIANT_TYPE_STRING))
body =
g_variant_dup_string(content, NULL);
break;
case 5:
if (g_variant_is_of_type
(content, G_VARIANT_TYPE_STRING_ARRAY))
actions->actions =
g_variant_dup_strv(content,
&(actions->
count));
break;
case 6:
if (g_variant_is_of_type
(content, G_VARIANT_TYPE_DICTIONARY)) {
dict_value =
g_variant_lookup_value(content,
"urgency",
G_VARIANT_TYPE_BYTE);
if (dict_value)
urgency =
g_variant_get_byte
(dict_value);
dict_value =
g_variant_lookup_value(content,
"fgcolor",
G_VARIANT_TYPE_STRING);
if (dict_value)
fgcolor =
g_variant_dup_string
(dict_value, NULL);
dict_value =
g_variant_lookup_value(content,
"bgcolor",
G_VARIANT_TYPE_STRING);
if (dict_value)
bgcolor =
g_variant_dup_string
(dict_value, NULL);
dict_value =
g_variant_lookup_value(content,
"category",
G_VARIANT_TYPE_STRING);
if (dict_value) {
category =
g_variant_dup_string(
dict_value, NULL);
}
dict_value =
g_variant_lookup_value(content,
"value",
G_VARIANT_TYPE_INT32);
if (dict_value) {
progress =
g_variant_get_int32(dict_value);
} else {
dict_value =
g_variant_lookup_value(content,
"value",
G_VARIANT_TYPE_UINT32);
if (dict_value)
progress =
g_variant_get_uint32(dict_value);
}
}
break;
case 7:
if (g_variant_is_of_type
(content, G_VARIANT_TYPE_INT32))
timeout = g_variant_get_int32(content);
break;
}
g_variant_unref(content);
idx++;
}
g_variant_iter_free(iter);
}
fflush(stdout);
if (timeout > 0) {
/* do some rounding */
timeout = (timeout + 500) / 1000;
if (timeout < 1) {
timeout = 1;
}
}
notification *n = malloc(sizeof(notification));
if(n == NULL) {
die("Unable to allocate memory", EXIT_FAILURE);
}
n->appname = appname;
n->summary = summary;
n->body = body;
n->icon = icon;
n->timeout = timeout;
n->allow_markup = settings.allow_markup;
n->plain_text = settings.plain_text;
n->progress = (progress < 0 || progress > 100) ? 0 : progress + 1;
n->urgency = urgency;
n->category = category;
n->dbus_client = strdup(sender);
if (actions->count > 0) {
n->actions = actions;
} else {
n->actions = NULL;
g_strfreev(actions->actions);
free(actions);
}
for (int i = 0; i < ColLast; i++) {
n->color_strings[i] = NULL;
}
n->color_strings[ColFG] = fgcolor;
n->color_strings[ColBG] = bgcolor;
int id = notification_init(n, replaces_id);
wake_up();
GVariant *reply = g_variant_new("(u)", id);
g_dbus_method_invocation_return_value(invocation, reply);
g_dbus_connection_flush(connection, NULL, NULL, NULL);
run(NULL);
}
static void onCloseNotification(GDBusConnection * connection,
const gchar * sender,
GVariant * parameters,
GDBusMethodInvocation * invocation)
{
guint32 id;
g_variant_get(parameters, "(u)", &id);
notification_close_by_id(id, 3);
g_dbus_method_invocation_return_value(invocation, NULL);
g_dbus_connection_flush(connection, NULL, NULL, NULL);
}
static void onGetServerInformation(GDBusConnection * connection,
const gchar * sender,
const GVariant * parameters,
GDBusMethodInvocation * invocation)
{
GVariant *value;
value = g_variant_new("(ssss)", "dunst", "knopwob", VERSION, "1.2");
g_dbus_method_invocation_return_value(invocation, value);
g_dbus_connection_flush(connection, NULL, NULL, NULL);
}
void notificationClosed(notification * n, int reason)
{
if (!dbus_conn) {
printf("DEBUG: notificationClosed but not (yet) connected\n");
return;
}
GVariant *body = g_variant_new("(uu)", n->id, reason);
GError *err = NULL;
g_dbus_connection_emit_signal(dbus_conn,
n->dbus_client,
"/org/freedesktop/Notifications",
"org.freedesktop.Notifications",
"NotificationClosed", body, &err);
if (err) {
printf("notificationClosed ERROR\n");
}
}
void actionInvoked(notification * n, const char *identifier)
{
GVariant *body = g_variant_new("(us)", n->id, identifier);
GError *err = NULL;
g_dbus_connection_emit_signal(dbus_conn,
n->dbus_client,
"/org/freedesktop/Notifications",
"org.freedesktop.Notifications",
"ActionInvoked", body, &err);
if (err) {
printf("ActionInvoked ERROR\n");
}
}
static const GDBusInterfaceVTable interface_vtable = {
handle_method_call
};
static void on_bus_acquired(GDBusConnection * connection,
const gchar * name, gpointer user_data)
{
guint registration_id;
registration_id = g_dbus_connection_register_object(connection,
"/org/freedesktop/Notifications",
introspection_data->
interfaces[0],
&interface_vtable,
NULL, NULL, NULL);
if (registration_id <= 0) {
fprintf(stderr, "Unable to register\n");
exit(1);
}
}
static void on_name_acquired(GDBusConnection * connection,
const gchar * name, gpointer user_data)
{
dbus_conn = connection;
}
static void on_name_lost(GDBusConnection * connection,
const gchar * name, gpointer user_data)
{
fprintf(stderr, "Name Lost. Is Another notification daemon running?\n");
exit(1);
}
int initdbus(void)
{
guint owner_id;
#if !GLIB_CHECK_VERSION(2,35,0)
g_type_init();
#endif
introspection_data = g_dbus_node_info_new_for_xml(introspection_xml,
NULL);
owner_id = g_bus_own_name(G_BUS_TYPE_SESSION,
"org.freedesktop.Notifications",
G_BUS_NAME_OWNER_FLAGS_NONE,
on_bus_acquired,
on_name_acquired, on_name_lost, NULL, NULL);
return owner_id;
}
void dbus_tear_down(int owner_id)
{
g_bus_unown_name(owner_id);
}
/* vim: set ts=8 sw=8 tw=0: */