void guac_rdp_gdi_desktop_resize(rdpContext* context) {
guac_client* client = ((rdp_freerdp_context*) context)->client;
rdp_guac_client_data* data = (rdp_guac_client_data*) client->data;
guac_common_surface_resize(data->default_surface,
guac_rdp_get_width(context->instance),
guac_rdp_get_height(context->instance));
guac_common_surface_reset_clip(data->default_surface);
guac_client_log(client, GUAC_LOG_DEBUG, "Server resized display to %ix%i",
guac_rdp_get_width(context->instance),
guac_rdp_get_height(context->instance));
}
static int __guac_receive_channel_data(freerdp* rdp_inst, UINT16 channelId,
BYTE* data, int size, int flags, int total_size) {
#else
static int __guac_receive_channel_data(freerdp* rdp_inst, int channelId,
UINT8* data, int size, int flags, int total_size) {
#endif
return freerdp_channels_data(rdp_inst, channelId,
data, size, flags, total_size);
}
#ifdef HAVE_FREERDP_EVENT_PUBSUB
/**
* Called whenever a channel connects via the PubSub event system within
* FreeRDP.
*
* @param context
* The rdpContext associated with the active RDP session.
*
* @param e
* Event-specific arguments, mainly the name of the channel, and a
* reference to the associated plugin loaded for that channel by FreeRDP.
*/
static void guac_rdp_channel_connected(rdpContext* context,
ChannelConnectedEventArgs* e) {
guac_client* client = ((rdp_freerdp_context*) context)->client;
guac_rdp_client* rdp_client = (guac_rdp_client*) client->data;
guac_rdp_settings* settings = rdp_client->settings;
if (settings->resize_method == GUAC_RESIZE_DISPLAY_UPDATE) {
#ifdef HAVE_RDPSETTINGS_SUPPORTDISPLAYCONTROL
/* Store reference to the display update plugin once it's connected */
if (strcmp(e->name, DISP_DVC_CHANNEL_NAME) == 0) {
DispClientContext* disp = (DispClientContext*) e->pInterface;
/* Init module with current display size */
guac_rdp_disp_set_size(rdp_client->disp, rdp_client->settings,
context->instance, guac_rdp_get_width(context->instance),
guac_rdp_get_height(context->instance));
/* Store connected channel */
guac_rdp_disp_connect(rdp_client->disp, disp);
guac_client_log(client, GUAC_LOG_DEBUG,
"Display update channel connected.");
}
#endif
}
}
void guac_rdp_disp_update_size(guac_rdp_disp* disp,
guac_rdp_settings* settings, freerdp* rdp_inst) {
int width = disp->requested_width;
int height = disp->requested_height;
/* Do not update size if no requests have been received */
if (width == 0 || height == 0)
return;
guac_timestamp now = guac_timestamp_current();
/* Limit display update frequency */
if (now - disp->last_request <= GUAC_RDP_DISP_UPDATE_INTERVAL)
return;
/* Do NOT send requests unless the size will change */
if (rdp_inst != NULL
&& width == guac_rdp_get_width(rdp_inst)
&& height == guac_rdp_get_height(rdp_inst))
return;
disp->last_request = now;
if (settings->resize_method == GUAC_RESIZE_RECONNECT) {
/* Update settings with new dimensions */
settings->width = width;
settings->height = height;
/* Signal reconnect */
disp->reconnect_needed = 1;
}
else if (settings->resize_method == GUAC_RESIZE_DISPLAY_UPDATE) {
#ifdef HAVE_FREERDP_DISPLAY_UPDATE_SUPPORT
DISPLAY_CONTROL_MONITOR_LAYOUT monitors[1] = {{
.Flags = 0x1, /* DISPLAYCONTROL_MONITOR_PRIMARY */
.Left = 0,
.Top = 0,
.Width = width,
.Height = height,
.PhysicalWidth = 0,
.PhysicalHeight = 0,
.Orientation = 0,
.DesktopScaleFactor = 0,
.DeviceScaleFactor = 0
}};
int __guac_receive_channel_data(freerdp* rdp_inst, UINT16 channelId, BYTE* data, int size, int flags, int total_size) {
#else
int __guac_receive_channel_data(freerdp* rdp_inst, int channelId, UINT8* data, int size, int flags, int total_size) {
#endif
return freerdp_channels_data(rdp_inst, channelId, data, size, flags, total_size);
}
#ifdef HAVE_FREERDP_EVENT_PUBSUB
/**
* Called whenever a channel connects via the PubSub event system within
* FreeRDP.
*
* @param context The rdpContext associated with the active RDP session.
* @param e Event-specific arguments, mainly the name of the channel, and a
* reference to the associated plugin loaded for that channel by
* FreeRDP.
*/
static void guac_rdp_channel_connected(rdpContext* context,
ChannelConnectedEventArgs* e) {
#ifdef HAVE_RDPSETTINGS_SUPPORTDISPLAYCONTROL
/* Store reference to the display update plugin once it's connected */
if (strcmp(e->name, DISP_DVC_CHANNEL_NAME) == 0) {
DispClientContext* disp = (DispClientContext*) e->pInterface;
guac_client* client = ((rdp_freerdp_context*) context)->client;
rdp_guac_client_data* guac_client_data =
(rdp_guac_client_data*) client->data;
/* Init module with current display size */
guac_rdp_disp_set_size(guac_client_data->disp, context,
guac_rdp_get_width(context->instance),
guac_rdp_get_height(context->instance));
/* Store connected channel */
guac_rdp_disp_connect(guac_client_data->disp, disp);
guac_client_log(client, GUAC_LOG_DEBUG,
"Display update channel connected.");
}
#endif
}
#endif
BOOL rdp_freerdp_pre_connect(freerdp* instance) {
rdpContext* context = instance->context;
guac_client* client = ((rdp_freerdp_context*) context)->client;
rdpChannels* channels = context->channels;
rdpBitmap* bitmap;
rdpGlyph* glyph;
rdpPointer* pointer;
rdpPrimaryUpdate* primary;
CLRCONV* clrconv;
rdp_guac_client_data* guac_client_data =
(rdp_guac_client_data*) client->data;
#ifdef HAVE_FREERDP_REGISTER_ADDIN_PROVIDER
/* Init FreeRDP add-in provider */
freerdp_register_addin_provider(freerdp_channels_load_static_addin_entry, 0);
#endif
#ifdef HAVE_FREERDP_EVENT_PUBSUB
/* Subscribe to and handle channel connected events */
PubSub_SubscribeChannelConnected(context->pubSub,
(pChannelConnectedEventHandler) guac_rdp_channel_connected);
#endif
#ifdef HAVE_FREERDP_DISPLAY_UPDATE_SUPPORT
/* Load virtual channel management plugin */
if (freerdp_channels_load_plugin(channels, instance->settings,
"drdynvc", instance->settings))
guac_client_log(client, GUAC_LOG_WARNING,
"Failed to load drdynvc plugin.");
/* Init display update plugin */
guac_client_data->disp = guac_rdp_disp_alloc();
guac_rdp_disp_load_plugin(instance->context);
#endif
/* Load clipboard plugin */
if (freerdp_channels_load_plugin(channels, instance->settings,
"cliprdr", NULL))
guac_client_log(client, GUAC_LOG_WARNING,
"Failed to load cliprdr plugin. Clipboard will not work.");
/* If audio enabled, choose an encoder */
if (guac_client_data->settings.audio_enabled) {
guac_client_data->audio = guac_audio_stream_alloc(client, NULL);
/* If an encoding is available, load the sound plugin */
if (guac_client_data->audio != NULL) {
/* Load sound plugin */
if (freerdp_channels_load_plugin(channels, instance->settings,
"guacsnd", guac_client_data->audio))
guac_client_log(client, GUAC_LOG_WARNING,
"Failed to load guacsnd plugin. Audio will not work.");
}
else
guac_client_log(client, GUAC_LOG_INFO,
"No available audio encoding. Sound disabled.");
} /* end if audio enabled */
/* Load filesystem if drive enabled */
if (guac_client_data->settings.drive_enabled) {
/* Allocate filesystem */
guac_client_data->filesystem =
guac_rdp_fs_alloc(client, guac_client_data->settings.drive_path,
guac_client_data->settings.create_drive_path);
/* Use for basic uploads if no other handler set */
if (client->file_handler == NULL)
client->file_handler = guac_rdp_upload_file_handler;
}
/* If RDPDR required, load it */
if (guac_client_data->settings.printing_enabled
|| guac_client_data->settings.drive_enabled
|| guac_client_data->settings.audio_enabled) {
/* Load RDPDR plugin */
if (freerdp_channels_load_plugin(channels, instance->settings,
"guacdr", client))
guac_client_log(client, GUAC_LOG_WARNING,
"Failed to load guacdr plugin. Drive redirection and printing will not work.");
}
/* Load RAIL plugin if RemoteApp in use */
if (guac_client_data->settings.remote_app != NULL) {
#ifdef LEGACY_FREERDP
RDP_PLUGIN_DATA* plugin_data = malloc(sizeof(RDP_PLUGIN_DATA) * 2);
plugin_data[0].size = sizeof(RDP_PLUGIN_DATA);
plugin_data[0].data[0] = guac_client_data->settings.remote_app;
plugin_data[0].data[1] = guac_client_data->settings.remote_app_dir;
plugin_data[0].data[2] = guac_client_data->settings.remote_app_args;
plugin_data[0].data[3] = NULL;
plugin_data[1].size = 0;
/* Attempt to load rail */
if (freerdp_channels_load_plugin(channels, instance->settings,
"rail", plugin_data))
guac_client_log(client, GUAC_LOG_WARNING,
"Failed to load rail plugin. RemoteApp will not work.");
#else
/* Attempt to load rail */
if (freerdp_channels_load_plugin(channels, instance->settings,
"rail", instance->settings))
guac_client_log(client, GUAC_LOG_WARNING,
"Failed to load rail plugin. RemoteApp will not work.");
#endif
}
/* Load SVC plugin instances for all static channels */
if (guac_client_data->settings.svc_names != NULL) {
char** current = guac_client_data->settings.svc_names;
do {
guac_rdp_svc* svc = guac_rdp_alloc_svc(client, *current);
/* Attempt to load guacsvc plugin for new static channel */
if (freerdp_channels_load_plugin(channels, instance->settings,
"guacsvc", svc)) {
guac_client_log(client, GUAC_LOG_WARNING,
"Cannot create static channel \"%s\": failed to load guacsvc plugin.",
svc->name);
guac_rdp_free_svc(svc);
}
/* Store and log on success */
else {
guac_rdp_add_svc(client, svc);
guac_client_log(client, GUAC_LOG_INFO, "Created static channel \"%s\"...",
svc->name);
}
} while (*(++current) != NULL);
}
/* Init color conversion structure */
clrconv = calloc(1, sizeof(CLRCONV));
clrconv->alpha = 1;
clrconv->invert = 0;
clrconv->rgb555 = 0;
clrconv->palette = calloc(1, sizeof(rdpPalette));
((rdp_freerdp_context*) context)->clrconv = clrconv;
/* Init FreeRDP cache */
instance->context->cache = cache_new(instance->settings);
/* Set up bitmap handling */
bitmap = calloc(1, sizeof(rdpBitmap));
bitmap->size = sizeof(guac_rdp_bitmap);
bitmap->New = guac_rdp_bitmap_new;
bitmap->Free = guac_rdp_bitmap_free;
bitmap->Paint = guac_rdp_bitmap_paint;
bitmap->Decompress = guac_rdp_bitmap_decompress;
bitmap->SetSurface = guac_rdp_bitmap_setsurface;
graphics_register_bitmap(context->graphics, bitmap);
free(bitmap);
/* Set up glyph handling */
glyph = calloc(1, sizeof(rdpGlyph));
glyph->size = sizeof(guac_rdp_glyph);
glyph->New = guac_rdp_glyph_new;
glyph->Free = guac_rdp_glyph_free;
glyph->Draw = guac_rdp_glyph_draw;
glyph->BeginDraw = guac_rdp_glyph_begindraw;
glyph->EndDraw = guac_rdp_glyph_enddraw;
graphics_register_glyph(context->graphics, glyph);
free(glyph);
/* Set up pointer handling */
pointer = calloc(1, sizeof(rdpPointer));
pointer->size = sizeof(guac_rdp_pointer);
pointer->New = guac_rdp_pointer_new;
pointer->Free = guac_rdp_pointer_free;
pointer->Set = guac_rdp_pointer_set;
#ifdef HAVE_RDPPOINTER_SETNULL
pointer->SetNull = guac_rdp_pointer_set_null;
#endif
#ifdef HAVE_RDPPOINTER_SETDEFAULT
pointer->SetDefault = guac_rdp_pointer_set_default;
#endif
graphics_register_pointer(context->graphics, pointer);
free(pointer);
/* Set up GDI */
instance->update->DesktopResize = guac_rdp_gdi_desktop_resize;
instance->update->EndPaint = guac_rdp_gdi_end_paint;
instance->update->Palette = guac_rdp_gdi_palette_update;
instance->update->SetBounds = guac_rdp_gdi_set_bounds;
primary = instance->update->primary;
primary->DstBlt = guac_rdp_gdi_dstblt;
primary->PatBlt = guac_rdp_gdi_patblt;
primary->ScrBlt = guac_rdp_gdi_scrblt;
primary->MemBlt = guac_rdp_gdi_memblt;
primary->OpaqueRect = guac_rdp_gdi_opaquerect;
pointer_cache_register_callbacks(instance->update);
glyph_cache_register_callbacks(instance->update);
brush_cache_register_callbacks(instance->update);
bitmap_cache_register_callbacks(instance->update);
offscreen_cache_register_callbacks(instance->update);
palette_cache_register_callbacks(instance->update);
/* Init channels (pre-connect) */
if (freerdp_channels_pre_connect(channels, instance)) {
guac_client_abort(client, GUAC_PROTOCOL_STATUS_SERVER_ERROR, "Error initializing RDP client channel manager");
return FALSE;
}
return TRUE;
}
