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/**
* FreeRDP: A Remote Desktop Protocol Implementation
* FreeRDP Proxy Server
*
* Copyright 2019 Mati Shabtay <matishabtay@gmail.com>
* Copyright 2019 Kobi Mizrachi <kmizrachi18@gmail.com>
* Copyright 2019 Idan Freiberg <speidy@gmail.com>
* Copyright 2021 Armin Novak <anovak@thincast.com>
* Copyright 2021 Thincast Technologies GmbH
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <winpr/assert.h>
#include "pf_input.h"
#include <freerdp/server/proxy/proxy_config.h>
#include <freerdp/server/proxy/proxy_context.h>
#include "proxy_modules.h"
static BOOL pf_server_check_and_sync_input_state(pClientContext* pc)
{
WINPR_ASSERT(pc);
if (!freerdp_is_active_state(&pc->context))
return FALSE;
if (pc->input_state_sync_pending)
{
BOOL rc = freerdp_input_send_synchronize_event(pc->context.input, pc->input_state);
if (rc)
pc->input_state_sync_pending = FALSE;
}
return TRUE;
}
static BOOL pf_server_synchronize_event(rdpInput* input, UINT32 flags)
{
pServerContext* ps = NULL;
pClientContext* pc = NULL;
WINPR_ASSERT(input);
ps = (pServerContext*)input->context;
WINPR_ASSERT(ps);
WINPR_ASSERT(ps->pdata);
pc = ps->pdata->pc;
WINPR_ASSERT(pc);
pc->input_state = flags;
pc->input_state_sync_pending = TRUE;
pf_server_check_and_sync_input_state(pc);
return TRUE;
}
static BOOL pf_server_keyboard_event(rdpInput* input, UINT16 flags, UINT8 code)
{
const proxyConfig* config = NULL;
proxyKeyboardEventInfo event = { 0 };
pServerContext* ps = NULL;
pClientContext* pc = NULL;
WINPR_ASSERT(input);
ps = (pServerContext*)input->context;
WINPR_ASSERT(ps);
WINPR_ASSERT(ps->pdata);
pc = ps->pdata->pc;
WINPR_ASSERT(pc);
config = ps->pdata->config;
WINPR_ASSERT(config);
if (!pf_server_check_and_sync_input_state(pc))
return TRUE;
if (!config->Keyboard)
return TRUE;
event.flags = flags;
event.rdp_scan_code = code;
if (pf_modules_run_filter(pc->pdata->module, FILTER_TYPE_KEYBOARD, pc->pdata, &event))
return freerdp_input_send_keyboard_event(pc->context.input, flags, code);
return TRUE;
}
static BOOL pf_server_unicode_keyboard_event(rdpInput* input, UINT16 flags, UINT16 code)
{
const proxyConfig* config = NULL;
proxyUnicodeEventInfo event = { 0 };
pServerContext* ps = NULL;
pClientContext* pc = NULL;
WINPR_ASSERT(input);
ps = (pServerContext*)input->context;
WINPR_ASSERT(ps);
WINPR_ASSERT(ps->pdata);
pc = ps->pdata->pc;
WINPR_ASSERT(pc);
config = ps->pdata->config;
WINPR_ASSERT(config);
if (!pf_server_check_and_sync_input_state(pc))
return TRUE;
if (!config->Keyboard)
return TRUE;
event.flags = flags;
event.code = code;
if (pf_modules_run_filter(pc->pdata->module, FILTER_TYPE_UNICODE, pc->pdata, &event))
return freerdp_input_send_unicode_keyboard_event(pc->context.input, flags, code);
return TRUE;
}
static BOOL pf_server_mouse_event(rdpInput* input, UINT16 flags, UINT16 x, UINT16 y)
{
proxyMouseEventInfo event = { 0 };
const proxyConfig* config = NULL;
pServerContext* ps = NULL;
pClientContext* pc = NULL;
WINPR_ASSERT(input);
ps = (pServerContext*)input->context;
WINPR_ASSERT(ps);
WINPR_ASSERT(ps->pdata);
pc = ps->pdata->pc;
WINPR_ASSERT(pc);
config = ps->pdata->config;
WINPR_ASSERT(config);
if (!pf_server_check_and_sync_input_state(pc))
return TRUE;
if (!config->Mouse)
return TRUE;
event.flags = flags;
event.x = x;
event.y = y;
if (pf_modules_run_filter(pc->pdata->module, FILTER_TYPE_MOUSE, pc->pdata, &event))
return freerdp_input_send_mouse_event(pc->context.input, flags, x, y);
return TRUE;
}
static BOOL pf_server_extended_mouse_event(rdpInput* input, UINT16 flags, UINT16 x, UINT16 y)
{
const proxyConfig* config = NULL;
proxyMouseExEventInfo event = { 0 };
pServerContext* ps = NULL;
pClientContext* pc = NULL;
WINPR_ASSERT(input);
ps = (pServerContext*)input->context;
WINPR_ASSERT(ps);
WINPR_ASSERT(ps->pdata);
pc = ps->pdata->pc;
WINPR_ASSERT(pc);
config = ps->pdata->config;
WINPR_ASSERT(config);
if (!pf_server_check_and_sync_input_state(pc))
return TRUE;
if (!config->Mouse)
return TRUE;
event.flags = flags;
event.x = x;
event.y = y;
if (pf_modules_run_filter(pc->pdata->module, FILTER_TYPE_MOUSE, pc->pdata, &event))
return freerdp_input_send_extended_mouse_event(pc->context.input, flags, x, y);
return TRUE;
}
void pf_server_register_input_callbacks(rdpInput* input)
{
WINPR_ASSERT(input);
input->SynchronizeEvent = pf_server_synchronize_event;
input->KeyboardEvent = pf_server_keyboard_event;
input->UnicodeKeyboardEvent = pf_server_unicode_keyboard_event;
input->MouseEvent = pf_server_mouse_event;
input->ExtendedMouseEvent = pf_server_extended_mouse_event;
}
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