--- a/configure.ac Thu Apr 09 02:43:59 2020 -0500
+++ b/configure.ac Mon May 11 21:28:39 2020 +0000
@@ -303,6 +303,9 @@
+PKG_CHECK_MODULES(GIO_UNIX, [gio-unix-2.0 >= 2.26], + AC_DEFINE(HAVE_GIOUNIX, 1, [Have gio-unix]), []) GLIB_GENMARSHAL=`pkg-config --variable=glib_genmarshal glib-2.0`
AC_SUBST(GLIB_GENMARSHAL)
--- a/libpurple/mediamanager.c Thu Apr 09 02:43:59 2020 -0500
+++ b/libpurple/mediamanager.c Mon May 11 21:28:39 2020 +0000
@@ -2585,6 +2585,8 @@
PURPLE_MEDIA_ELEMENT_INFO_GET_PRIVATE(info);
+ parent_class->finalize(info); --- a/pidgin/Makefile.am Thu Apr 09 02:43:59 2020 -0500
+++ b/pidgin/Makefile.am Mon May 11 21:28:39 2020 +0000
@@ -161,6 +161,7 @@
$(top_builddir)/libpurple/libpurple.la
@@ -176,6 +177,7 @@
--- a/pidgin/gtkrequest.c Thu Apr 09 02:43:59 2020 -0500
+++ b/pidgin/gtkrequest.c Mon May 11 21:28:39 2020 +0000
@@ -38,6 +38,9 @@
+#include <gio/gunixfdlist.h> #include <gdk/gdkkeysyms.h>
@@ -80,6 +83,20 @@
+ GDBusConnection *dbus_connection; + GCancellable *cancellable; + guint portal_session_nr; + guint portal_request_nr; @@ -1707,6 +1724,351 @@
+static gboolean portal_failed; +static void screenshare_cancel_cb(GtkWidget *button, PidginRequestData *data); +static void portal_fallback(PidginRequestData *data) + purple_debug_info("pidgin", "Fallback from XDP portal screenshare\n"); + pidgin_auto_parent_window(data->dialog); + gtk_widget_show_all(data->dialog); + screenshare_cancel_cb(NULL, data); +static void request_completed_cb(GObject *object, GAsyncResult *res, gpointer _data) + PidginRequestData *data = _data; + GDBusMessage *msg = g_dbus_connection_send_message_with_reply_finish(data->u.screenshare.dbus_connection, + if (!msg || g_dbus_message_to_gerror(msg, &error)) { + /* This is the expected failure mode when XDP screencast isn't available. + * Don't be too noisy about it; just fall back to direct mode. */ + purple_debug_info("pidgin", + "ScreenCast call failed: %s\n", error->message); +static gchar *portal_request_path(PidginRequestData *data, GVariantBuilder *b) + gchar *dot, *request_str; + bus_name = g_dbus_connection_get_unique_name(data->u.screenshare.dbus_connection); + request_str = g_strdup_printf("u%u", data->u.screenshare.portal_request_nr++); + request_path = g_strdup_printf("/org/freedesktop/portal/desktop/request/%s/%s", + bus_name + 1, request_str); + g_variant_builder_add(b, "{sv}", "handle_token", g_variant_new_take_string(request_str)); + while ((dot = strchr(dot, '.'))) { +static void screen_cast_call(PidginRequestData *data, const gchar *method, const gchar *str_arg, + GVariantBuilder *opts, GDBusSignalCallback cb) + if (data->u.screenshare.signal_id) { + g_dbus_connection_signal_unsubscribe(data->u.screenshare.dbus_connection, + data->u.screenshare.signal_id); + opts = g_variant_builder_new(G_VARIANT_TYPE("a{sv}")); + request_path = portal_request_path(data, opts); + g_variant_builder_unref(opts); + purple_notify_error(NULL, _("Screen share error"), + _("Error creating screencast request"), NULL); + screenshare_cancel_cb(NULL, data); + data->u.screenshare.signal_id = g_dbus_connection_signal_subscribe(data->u.screenshare.dbus_connection, + "org.freedesktop.portal.Desktop", + "org.freedesktop.portal.Request", + "Response", request_path, NULL, 0, + msg = g_dbus_message_new_method_call("org.freedesktop.portal.Desktop", + "/org/freedesktop/portal/desktop", + "org.freedesktop.portal.ScreenCast", + g_variant_builder_init(&b, G_VARIANT_TYPE_TUPLE); + if (data->u.screenshare.session_path) { + g_variant_builder_add(&b, "o", data->u.screenshare.session_path); + g_variant_builder_add(&b, "s", str_arg); + g_variant_builder_add(&b, "a{sv}", opts); + g_dbus_message_set_body(msg, g_variant_builder_end(&b)); + g_dbus_connection_send_message_with_reply(data->u.screenshare.dbus_connection, msg, + 0, 2000, NULL, NULL, request_completed_cb, data); +static GstElement *create_pipewiresrc_cb(PurpleMedia *media, const gchar *session_id, + const gchar *participant) + info = g_object_get_data(G_OBJECT(media), "src-element"); + ret = gst_element_factory_make("pipewiresrc", NULL); + /* Take the node-id and fd from the PurpleMediaElementInfo + * and apply them to the pipewiresrc */ + node_id = g_strdup_printf("%u", + GPOINTER_TO_UINT(g_object_get_data(info, "node-id"))); + g_object_set(ret,"path", node_id, "do-timestamp", TRUE, + "fd", GPOINTER_TO_INT(g_object_get_data(info, "fd")), +static void close_pipewire_fd(gpointer _fd) + int fd = GPOINTER_TO_INT(_fd); +static void pipewire_fd_cb(GObject *object, GAsyncResult *res, gpointer _data) + PidginRequestData *data = _data; + GDBusMessage *msg = g_dbus_connection_send_message_with_reply_finish(data->u.screenshare.dbus_connection, + if (!msg || g_dbus_message_to_gerror(msg, &error)) { + purple_debug_info("pidgin", "OpenPipeWireRemote request failed: %s\n", error->message); + purple_notify_error(NULL, _("Screen share error"), + _("OpenPipeWireRemote request failed"), error->message); + screenshare_cancel_cb(NULL, data); + l = g_dbus_message_get_unix_fd_list(msg); + purple_debug_info("pidgin", "OpenPipeWireRemote request failed to yield a file descriptor\n"); + purple_notify_error(NULL, _("Screen share error"), _("OpenPipeWireRemote request failed"), + _("No file descriptor found")); + screenshare_cancel_cb(NULL, data); + pipewire_fd = g_unix_fd_list_get(l, 0, NULL); + if (data->cbs[0] != NULL) { + info = g_object_new(PURPLE_TYPE_MEDIA_ELEMENT_INFO, + "id", "screenshare-window", + "name", "Screen share single window", + "type", PURPLE_MEDIA_ELEMENT_VIDEO | PURPLE_MEDIA_ELEMENT_SRC | + PURPLE_MEDIA_ELEMENT_ONE_SRC, + "create-cb", create_pipewiresrc_cb, NULL); + g_object_set_data_full(info, "fd", GINT_TO_POINTER(pipewire_fd), close_pipewire_fd); + g_object_set_data(info, "node-id", GUINT_TO_POINTER(data->u.screenshare.node_id)); + /* When the DBus connection closes, the session ends. So keep it attached + to the PurpleMediaElementInfo, which in turn should be attached to + the owning PurpleMedia for the lifetime of the session. */ + g_object_set_data_full(info, "dbus-connection", + g_object_ref(data->u.screenshare.dbus_connection), + ((PurpleRequestScreenshareCb)data->cbs[0])(data->user_data, info); + purple_request_close(PURPLE_REQUEST_SCREENSHARE, data); +static void get_pipewire_fd(PidginRequestData *data) + if (data->u.screenshare.signal_id) { + g_dbus_connection_signal_unsubscribe(data->u.screenshare.dbus_connection, + data->u.screenshare.signal_id); + data->u.screenshare.signal_id = 0; + msg = g_dbus_message_new_method_call("org.freedesktop.portal.Desktop", + "/org/freedesktop/portal/desktop", + "org.freedesktop.portal.ScreenCast", + args = g_variant_new("(oa{sv})", data->u.screenshare.session_path, NULL); + g_dbus_message_set_body(msg, args); + g_dbus_connection_send_message_with_reply(data->u.screenshare.dbus_connection, msg, + 0, 200, NULL, NULL, pipewire_fd_cb, data); +static void started_cb(GDBusConnection *dc, const gchar *sender_name, + const gchar *object_path, const gchar *interface_name, + const gchar *signal_name, GVariant *params, gpointer _data) + PidginRequestData *data = _data; + GVariant *args, *streams; + g_variant_get(params, "(u@a{sv})", &code, &args); + if (code || !g_variant_lookup(args, "streams", "@a(ua{sv})", &streams) || + g_variant_n_children(streams) != 1) { + purple_debug_info("pidgin", "Screencast Start call returned %d\n", code); + purple_notify_error(NULL, _("Screen share error"), + _("Screencast \"Start\" failed"), NULL); + screenshare_cancel_cb(NULL, data); + g_variant_get_child(streams, 0, "(u@a{sv})", &data->u.screenshare.node_id, NULL); +static void source_selected_cb(GDBusConnection *dc, const gchar *sender_name, + const gchar *object_path, const gchar *interface_name, + const gchar *signal_name, GVariant *params, gpointer _data) + PidginRequestData *data = _data; + g_variant_get(params, "(u@a{sv})", &code, NULL); + purple_debug_info("pidgin", "Screencast SelectSources call returned %d\n", code); + purple_notify_error(NULL, _("Screen share error"), + _("Screencast \"SelectSources\" failed"), NULL); + screenshare_cancel_cb(NULL, data); + screen_cast_call(data, "Start", "", NULL, started_cb); +static void sess_created_cb(GDBusConnection *dc, const gchar *sender_name, + const gchar *object_path, const gchar *interface_name, + const gchar *signal_name, GVariant *params, gpointer _data) + PidginRequestData *data = _data; + g_variant_get(params, "(u@a{sv})", &code, &args); + if (code || !g_variant_lookup(args, "session_handle", "s", + &data->u.screenshare.session_path)) { + purple_debug_info("pidgin", "Screencast CreateSession call returned %d\n", code); + purple_notify_error(NULL, _("Screen share error"), + _("Screencast \"CreateSession\" failed."), NULL); + screenshare_cancel_cb(NULL, data); + g_variant_builder_init(&opts, G_VARIANT_TYPE("a{sv}")); + g_variant_builder_add(&opts, "{sv}", "multiple", g_variant_new_boolean(FALSE)); + g_variant_builder_add(&opts, "{sv}", "types", g_variant_new_uint32(3)); + screen_cast_call(data, "SelectSources", NULL, &opts, source_selected_cb); +static void portal_conn_cb(GObject *object, GAsyncResult *res, gpointer _data) + PidginRequestData *data = _data; + data->u.screenshare.dbus_connection = g_dbus_connection_new_for_address_finish(res, &error); + if (!data->u.screenshare.dbus_connection) { + purple_debug_info("pidgin", "Connection to XDP portal failed: %s\n", error->message); + session_token = g_strdup_printf("u%u", data->u.screenshare.portal_session_nr++); + g_variant_builder_init(&opts, G_VARIANT_TYPE("a{sv}")); + g_variant_builder_add(&opts, "{sv}", "session_handle_token", + g_variant_new_take_string(session_token)); + screen_cast_call(data, "CreateSession", NULL, &opts, sess_created_cb); +static gboolean request_xdp_portal_screenshare(PidginRequestData *data) + data->u.screenshare.cancellable = g_cancellable_new(); + /* We create a new connection instead of using g_bus_get() because it + * makes cleanup a *lot* easier. Just kill the connection. */ + addr = g_dbus_address_get_for_bus_sync(G_BUS_TYPE_SESSION, NULL, NULL); + g_dbus_connection_new_for_address(addr, + G_DBUS_CONNECTION_FLAGS_MESSAGE_BUS_CONNECTION | + G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_CLIENT, NULL, + data->u.screenshare.cancellable, portal_conn_cb, data); static GstElement *create_screensrc_cb(PurpleMedia *media, const gchar *session_id,
const gchar *participant);
@@ -1911,7 +2273,9 @@
screenshare_cancel_cb(GtkWidget *button, PidginRequestData *data)
- generic_response_start(data);
+ generic_response_start(data); if (data->cbs[0] != NULL)
((PurpleRequestScreenshareCb)data->cbs[0])(data->user_data, NULL);
@@ -2055,6 +2419,21 @@
g_object_set_data(G_OBJECT(dialog), "radio", radio);
+ * We create the dialog for direct x11/win share here anyway, because + * it's simpler than storing everything we need to create it, including + * the PurpleAccount which we can't just take a ref on because it isn't + * just a GObject yet. On fallback, the dialog can be used immediately. + if (request_xdp_portal_screenshare(data)) { + purple_debug_info("pidgin", "Attempt XDP portal screenshare\n"); + purple_debug_info("pidgin", "Using direct screenshare\n"); pidgin_auto_parent_window(dialog);
@@ -2072,12 +2451,25 @@
- gtk_widget_destroy(data->dialog);
- if (type == PURPLE_REQUEST_FIELDS)
+ gtk_widget_destroy(data->dialog); + if (type == PURPLE_REQUEST_FIELDS) { purple_request_fields_destroy(data->u.multifield.fields);
- else if (type == PURPLE_REQUEST_FILE)
+ } else if (type == PURPLE_REQUEST_FILE) { g_free(data->u.file.name);
+ } else if (type == PURPLE_REQUEST_SCREENSHARE) { + g_cancellable_cancel(data->u.screenshare.cancellable); + if (data->u.screenshare.signal_id) + g_dbus_connection_signal_unsubscribe(data->u.screenshare.dbus_connection, + data->u.screenshare.signal_id); + g_clear_object(&data->u.screenshare.dbus_connection); + g_free(data->u.screenshare.session_path); + g_clear_object(&data->u.screenshare.cancellable);