diff options
Diffstat (limited to 'channels/cliprdr/server/cliprdr_main.c')
| -rw-r--r-- | channels/cliprdr/server/cliprdr_main.c | 1528 |
1 files changed, 1528 insertions, 0 deletions
diff --git a/channels/cliprdr/server/cliprdr_main.c b/channels/cliprdr/server/cliprdr_main.c new file mode 100644 index 0000000..9823f17 --- /dev/null +++ b/channels/cliprdr/server/cliprdr_main.c @@ -0,0 +1,1528 @@ +/** + * FreeRDP: A Remote Desktop Protocol Implementation + * Clipboard Virtual Channel Extension + * + * Copyright 2013 Marc-Andre Moreau <marcandre.moreau@gmail.com> + * Copyright 2015 Thincast Technologies GmbH + * Copyright 2015 DI (FH) Martin Haimberger <martin.haimberger@thincast.com> + * + * 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 <freerdp/config.h> + +#include <winpr/crt.h> +#include <winpr/assert.h> +#include <winpr/print.h> +#include <winpr/stream.h> + +#include <freerdp/freerdp.h> +#include <freerdp/channels/log.h> +#include "cliprdr_main.h" +#include "../cliprdr_common.h" + +/** + * Initialization Sequence\n + * Client Server\n + * | |\n + * |<----------------------Server Clipboard Capabilities PDU-----------------|\n + * |<-----------------------------Monitor Ready PDU--------------------------|\n + * |-----------------------Client Clipboard Capabilities PDU---------------->|\n + * |---------------------------Temporary Directory PDU---------------------->|\n + * |-------------------------------Format List PDU-------------------------->|\n + * |<--------------------------Format List Response PDU----------------------|\n + * + */ + +/** + * Data Transfer Sequences\n + * Shared Local\n + * Clipboard Owner Clipboard Owner\n + * | |\n + * |-------------------------------------------------------------------------|\n _ + * |-------------------------------Format List PDU-------------------------->|\n | + * |<--------------------------Format List Response PDU----------------------|\n _| Copy + * Sequence + * |<---------------------Lock Clipboard Data PDU (Optional)-----------------|\n + * |-------------------------------------------------------------------------|\n + * |-------------------------------------------------------------------------|\n _ + * |<--------------------------Format Data Request PDU-----------------------|\n | Paste + * Sequence Palette, + * |---------------------------Format Data Response PDU--------------------->|\n _| Metafile, + * File List Data + * |-------------------------------------------------------------------------|\n + * |-------------------------------------------------------------------------|\n _ + * |<------------------------Format Contents Request PDU---------------------|\n | Paste + * Sequence + * |-------------------------Format Contents Response PDU------------------->|\n _| File + * Stream Data + * |<---------------------Lock Clipboard Data PDU (Optional)-----------------|\n + * |-------------------------------------------------------------------------|\n + * + */ + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_server_packet_send(CliprdrServerPrivate* cliprdr, wStream* s) +{ + UINT rc = 0; + size_t pos = 0; + BOOL status = 0; + UINT32 dataLen = 0; + ULONG written = 0; + + WINPR_ASSERT(cliprdr); + + pos = Stream_GetPosition(s); + if ((pos < 8) || (pos > UINT32_MAX)) + { + rc = ERROR_NO_DATA; + goto fail; + } + + dataLen = (UINT32)(pos - 8); + Stream_SetPosition(s, 4); + Stream_Write_UINT32(s, dataLen); + if (pos > UINT32_MAX) + { + rc = ERROR_INVALID_DATA; + goto fail; + } + + status = WTSVirtualChannelWrite(cliprdr->ChannelHandle, (PCHAR)Stream_Buffer(s), (UINT32)pos, + &written); + rc = status ? CHANNEL_RC_OK : ERROR_INTERNAL_ERROR; +fail: + Stream_Free(s, TRUE); + return rc; +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_server_capabilities(CliprdrServerContext* context, + const CLIPRDR_CAPABILITIES* capabilities) +{ + size_t offset = 0; + wStream* s = NULL; + + WINPR_ASSERT(context); + WINPR_ASSERT(capabilities); + + CliprdrServerPrivate* cliprdr = (CliprdrServerPrivate*)context->handle; + + if (capabilities->common.msgType != CB_CLIP_CAPS) + WLog_WARN(TAG, "called with invalid type %08" PRIx32, capabilities->common.msgType); + + if (capabilities->cCapabilitiesSets > UINT16_MAX) + { + WLog_ERR(TAG, "Invalid number of capability sets in clipboard caps"); + return ERROR_INVALID_PARAMETER; + } + + s = cliprdr_packet_new(CB_CLIP_CAPS, 0, 4 + CB_CAPSTYPE_GENERAL_LEN); + + if (!s) + { + WLog_ERR(TAG, "cliprdr_packet_new failed!"); + return ERROR_INTERNAL_ERROR; + } + + Stream_Write_UINT16(s, + (UINT16)capabilities->cCapabilitiesSets); /* cCapabilitiesSets (2 bytes) */ + Stream_Write_UINT16(s, 0); /* pad1 (2 bytes) */ + for (UINT32 x = 0; x < capabilities->cCapabilitiesSets; x++) + { + const CLIPRDR_CAPABILITY_SET* cap = + (const CLIPRDR_CAPABILITY_SET*)(((const BYTE*)capabilities->capabilitySets) + offset); + offset += cap->capabilitySetLength; + + switch (cap->capabilitySetType) + { + case CB_CAPSTYPE_GENERAL: + { + const CLIPRDR_GENERAL_CAPABILITY_SET* generalCapabilitySet = + (const CLIPRDR_GENERAL_CAPABILITY_SET*)cap; + Stream_Write_UINT16( + s, generalCapabilitySet->capabilitySetType); /* capabilitySetType (2 bytes) */ + Stream_Write_UINT16( + s, generalCapabilitySet->capabilitySetLength); /* lengthCapability (2 bytes) */ + Stream_Write_UINT32(s, generalCapabilitySet->version); /* version (4 bytes) */ + Stream_Write_UINT32( + s, generalCapabilitySet->generalFlags); /* generalFlags (4 bytes) */ + } + break; + + default: + WLog_WARN(TAG, "Unknown capability set type %08" PRIx16, cap->capabilitySetType); + if (!Stream_SafeSeek(s, cap->capabilitySetLength)) + { + WLog_ERR(TAG, "short stream"); + return ERROR_NO_DATA; + } + break; + } + } + WLog_DBG(TAG, "ServerCapabilities"); + return cliprdr_server_packet_send(cliprdr, s); +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_server_monitor_ready(CliprdrServerContext* context, + const CLIPRDR_MONITOR_READY* monitorReady) +{ + wStream* s = NULL; + CliprdrServerPrivate* cliprdr = NULL; + + WINPR_ASSERT(context); + WINPR_ASSERT(monitorReady); + + cliprdr = (CliprdrServerPrivate*)context->handle; + + if (monitorReady->common.msgType != CB_MONITOR_READY) + WLog_WARN(TAG, "called with invalid type %08" PRIx32, monitorReady->common.msgType); + + s = cliprdr_packet_new(CB_MONITOR_READY, monitorReady->common.msgFlags, + monitorReady->common.dataLen); + + if (!s) + { + WLog_ERR(TAG, "cliprdr_packet_new failed!"); + return ERROR_INTERNAL_ERROR; + } + + WLog_DBG(TAG, "ServerMonitorReady"); + return cliprdr_server_packet_send(cliprdr, s); +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_server_format_list(CliprdrServerContext* context, + const CLIPRDR_FORMAT_LIST* formatList) +{ + wStream* s = NULL; + CliprdrServerPrivate* cliprdr = NULL; + + WINPR_ASSERT(context); + WINPR_ASSERT(formatList); + + cliprdr = (CliprdrServerPrivate*)context->handle; + + s = cliprdr_packet_format_list_new(formatList, context->useLongFormatNames); + if (!s) + { + WLog_ERR(TAG, "cliprdr_packet_format_list_new failed!"); + return ERROR_INTERNAL_ERROR; + } + + WLog_DBG(TAG, "ServerFormatList: numFormats: %" PRIu32 "", formatList->numFormats); + return cliprdr_server_packet_send(cliprdr, s); +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT +cliprdr_server_format_list_response(CliprdrServerContext* context, + const CLIPRDR_FORMAT_LIST_RESPONSE* formatListResponse) +{ + wStream* s = NULL; + CliprdrServerPrivate* cliprdr = NULL; + + WINPR_ASSERT(context); + WINPR_ASSERT(formatListResponse); + + cliprdr = (CliprdrServerPrivate*)context->handle; + if (formatListResponse->common.msgType != CB_FORMAT_LIST_RESPONSE) + WLog_WARN(TAG, "called with invalid type %08" PRIx32, formatListResponse->common.msgType); + + s = cliprdr_packet_new(CB_FORMAT_LIST_RESPONSE, formatListResponse->common.msgFlags, + formatListResponse->common.dataLen); + + if (!s) + { + WLog_ERR(TAG, "cliprdr_packet_new failed!"); + return ERROR_INTERNAL_ERROR; + } + + WLog_DBG(TAG, "ServerFormatListResponse"); + return cliprdr_server_packet_send(cliprdr, s); +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_server_lock_clipboard_data(CliprdrServerContext* context, + const CLIPRDR_LOCK_CLIPBOARD_DATA* lockClipboardData) +{ + wStream* s = NULL; + CliprdrServerPrivate* cliprdr = NULL; + + WINPR_ASSERT(context); + WINPR_ASSERT(lockClipboardData); + + cliprdr = (CliprdrServerPrivate*)context->handle; + if (lockClipboardData->common.msgType != CB_LOCK_CLIPDATA) + WLog_WARN(TAG, "called with invalid type %08" PRIx32, lockClipboardData->common.msgType); + + s = cliprdr_packet_lock_clipdata_new(lockClipboardData); + if (!s) + { + WLog_ERR(TAG, "cliprdr_packet_lock_clipdata_new failed!"); + return ERROR_INTERNAL_ERROR; + } + + WLog_DBG(TAG, "ServerLockClipboardData: clipDataId: 0x%08" PRIX32 "", + lockClipboardData->clipDataId); + return cliprdr_server_packet_send(cliprdr, s); +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT +cliprdr_server_unlock_clipboard_data(CliprdrServerContext* context, + const CLIPRDR_UNLOCK_CLIPBOARD_DATA* unlockClipboardData) +{ + wStream* s = NULL; + CliprdrServerPrivate* cliprdr = NULL; + + WINPR_ASSERT(context); + WINPR_ASSERT(unlockClipboardData); + + cliprdr = (CliprdrServerPrivate*)context->handle; + if (unlockClipboardData->common.msgType != CB_UNLOCK_CLIPDATA) + WLog_WARN(TAG, "called with invalid type %08" PRIx32, unlockClipboardData->common.msgType); + + s = cliprdr_packet_unlock_clipdata_new(unlockClipboardData); + + if (!s) + { + WLog_ERR(TAG, "cliprdr_packet_unlock_clipdata_new failed!"); + return ERROR_INTERNAL_ERROR; + } + + WLog_DBG(TAG, "ServerUnlockClipboardData: clipDataId: 0x%08" PRIX32 "", + unlockClipboardData->clipDataId); + return cliprdr_server_packet_send(cliprdr, s); +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_server_format_data_request(CliprdrServerContext* context, + const CLIPRDR_FORMAT_DATA_REQUEST* formatDataRequest) +{ + wStream* s = NULL; + CliprdrServerPrivate* cliprdr = NULL; + + WINPR_ASSERT(context); + WINPR_ASSERT(formatDataRequest); + + cliprdr = (CliprdrServerPrivate*)context->handle; + if (formatDataRequest->common.msgType != CB_FORMAT_DATA_REQUEST) + WLog_WARN(TAG, "called with invalid type %08" PRIx32, formatDataRequest->common.msgType); + + s = cliprdr_packet_new(CB_FORMAT_DATA_REQUEST, formatDataRequest->common.msgFlags, + formatDataRequest->common.dataLen); + + if (!s) + { + WLog_ERR(TAG, "cliprdr_packet_new failed!"); + return ERROR_INTERNAL_ERROR; + } + + Stream_Write_UINT32(s, formatDataRequest->requestedFormatId); /* requestedFormatId (4 bytes) */ + WLog_DBG(TAG, "ClientFormatDataRequest"); + return cliprdr_server_packet_send(cliprdr, s); +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT +cliprdr_server_format_data_response(CliprdrServerContext* context, + const CLIPRDR_FORMAT_DATA_RESPONSE* formatDataResponse) +{ + wStream* s = NULL; + CliprdrServerPrivate* cliprdr = NULL; + + WINPR_ASSERT(context); + WINPR_ASSERT(formatDataResponse); + + cliprdr = (CliprdrServerPrivate*)context->handle; + + if (formatDataResponse->common.msgType != CB_FORMAT_DATA_RESPONSE) + WLog_WARN(TAG, "called with invalid type %08" PRIx32, formatDataResponse->common.msgType); + + s = cliprdr_packet_new(CB_FORMAT_DATA_RESPONSE, formatDataResponse->common.msgFlags, + formatDataResponse->common.dataLen); + + if (!s) + { + WLog_ERR(TAG, "cliprdr_packet_new failed!"); + return ERROR_INTERNAL_ERROR; + } + + Stream_Write(s, formatDataResponse->requestedFormatData, formatDataResponse->common.dataLen); + WLog_DBG(TAG, "ServerFormatDataResponse"); + return cliprdr_server_packet_send(cliprdr, s); +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT +cliprdr_server_file_contents_request(CliprdrServerContext* context, + const CLIPRDR_FILE_CONTENTS_REQUEST* fileContentsRequest) +{ + wStream* s = NULL; + CliprdrServerPrivate* cliprdr = NULL; + + WINPR_ASSERT(context); + WINPR_ASSERT(fileContentsRequest); + + cliprdr = (CliprdrServerPrivate*)context->handle; + + if (fileContentsRequest->common.msgType != CB_FILECONTENTS_REQUEST) + WLog_WARN(TAG, "called with invalid type %08" PRIx32, fileContentsRequest->common.msgType); + + s = cliprdr_packet_file_contents_request_new(fileContentsRequest); + if (!s) + { + WLog_ERR(TAG, "cliprdr_packet_file_contents_request_new failed!"); + return ERROR_INTERNAL_ERROR; + } + + WLog_DBG(TAG, "ServerFileContentsRequest: streamId: 0x%08" PRIX32 "", + fileContentsRequest->streamId); + return cliprdr_server_packet_send(cliprdr, s); +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT +cliprdr_server_file_contents_response(CliprdrServerContext* context, + const CLIPRDR_FILE_CONTENTS_RESPONSE* fileContentsResponse) +{ + wStream* s = NULL; + CliprdrServerPrivate* cliprdr = NULL; + + WINPR_ASSERT(context); + WINPR_ASSERT(fileContentsResponse); + + cliprdr = (CliprdrServerPrivate*)context->handle; + + if (fileContentsResponse->common.msgType != CB_FILECONTENTS_RESPONSE) + WLog_WARN(TAG, "called with invalid type %08" PRIx32, fileContentsResponse->common.msgType); + + s = cliprdr_packet_file_contents_response_new(fileContentsResponse); + if (!s) + { + WLog_ERR(TAG, "cliprdr_packet_file_contents_response_new failed!"); + return ERROR_INTERNAL_ERROR; + } + + WLog_DBG(TAG, "ServerFileContentsResponse: streamId: 0x%08" PRIX32 "", + fileContentsResponse->streamId); + return cliprdr_server_packet_send(cliprdr, s); +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_server_receive_general_capability(CliprdrServerContext* context, wStream* s, + CLIPRDR_GENERAL_CAPABILITY_SET* cap_set) +{ + WINPR_ASSERT(context); + WINPR_ASSERT(cap_set); + + if (!Stream_CheckAndLogRequiredLength(TAG, s, 8)) + return ERROR_INVALID_DATA; + + Stream_Read_UINT32(s, cap_set->version); /* version (4 bytes) */ + Stream_Read_UINT32(s, cap_set->generalFlags); /* generalFlags (4 bytes) */ + + if (context->useLongFormatNames) + context->useLongFormatNames = + (cap_set->generalFlags & CB_USE_LONG_FORMAT_NAMES) ? TRUE : FALSE; + + if (context->streamFileClipEnabled) + context->streamFileClipEnabled = + (cap_set->generalFlags & CB_STREAM_FILECLIP_ENABLED) ? TRUE : FALSE; + + if (context->fileClipNoFilePaths) + context->fileClipNoFilePaths = + (cap_set->generalFlags & CB_FILECLIP_NO_FILE_PATHS) ? TRUE : FALSE; + + if (context->canLockClipData) + context->canLockClipData = (cap_set->generalFlags & CB_CAN_LOCK_CLIPDATA) ? TRUE : FALSE; + + if (context->hasHugeFileSupport) + context->hasHugeFileSupport = + (cap_set->generalFlags & CB_HUGE_FILE_SUPPORT_ENABLED) ? TRUE : FALSE; + + return CHANNEL_RC_OK; +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_server_receive_capabilities(CliprdrServerContext* context, wStream* s, + const CLIPRDR_HEADER* header) +{ + UINT16 capabilitySetType = 0; + UINT16 capabilitySetLength = 0; + UINT error = ERROR_INVALID_DATA; + size_t cap_sets_size = 0; + CLIPRDR_CAPABILITIES capabilities = { 0 }; + CLIPRDR_CAPABILITY_SET* capSet = NULL; + + WINPR_ASSERT(context); + WINPR_UNUSED(header); + + WLog_DBG(TAG, "CliprdrClientCapabilities"); + if (!Stream_CheckAndLogRequiredLength(TAG, s, 4)) + return ERROR_INVALID_DATA; + + Stream_Read_UINT16(s, capabilities.cCapabilitiesSets); /* cCapabilitiesSets (2 bytes) */ + Stream_Seek_UINT16(s); /* pad1 (2 bytes) */ + + for (size_t index = 0; index < capabilities.cCapabilitiesSets; index++) + { + void* tmp = NULL; + if (!Stream_CheckAndLogRequiredLength(TAG, s, 4)) + goto out; + Stream_Read_UINT16(s, capabilitySetType); /* capabilitySetType (2 bytes) */ + Stream_Read_UINT16(s, capabilitySetLength); /* capabilitySetLength (2 bytes) */ + + cap_sets_size += capabilitySetLength; + + if (cap_sets_size > 0) + tmp = realloc(capabilities.capabilitySets, cap_sets_size); + if (tmp == NULL) + { + WLog_ERR(TAG, "capabilities.capabilitySets realloc failed!"); + free(capabilities.capabilitySets); + return CHANNEL_RC_NO_MEMORY; + } + + capabilities.capabilitySets = (CLIPRDR_CAPABILITY_SET*)tmp; + + capSet = &(capabilities.capabilitySets[index]); + + capSet->capabilitySetType = capabilitySetType; + capSet->capabilitySetLength = capabilitySetLength; + + switch (capSet->capabilitySetType) + { + case CB_CAPSTYPE_GENERAL: + error = cliprdr_server_receive_general_capability( + context, s, (CLIPRDR_GENERAL_CAPABILITY_SET*)capSet); + if (error) + { + WLog_ERR(TAG, + "cliprdr_server_receive_general_capability failed with error %" PRIu32 + "", + error); + goto out; + } + break; + + default: + WLog_ERR(TAG, "unknown cliprdr capability set: %" PRIu16 "", + capSet->capabilitySetType); + goto out; + } + } + + error = CHANNEL_RC_OK; + IFCALLRET(context->ClientCapabilities, error, context, &capabilities); +out: + free(capabilities.capabilitySets); + return error; +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_server_receive_temporary_directory(CliprdrServerContext* context, wStream* s, + const CLIPRDR_HEADER* header) +{ + size_t length = 0; + CLIPRDR_TEMP_DIRECTORY tempDirectory = { 0 }; + CliprdrServerPrivate* cliprdr = NULL; + UINT error = CHANNEL_RC_OK; + + WINPR_ASSERT(context); + WINPR_UNUSED(header); + + cliprdr = (CliprdrServerPrivate*)context->handle; + WINPR_ASSERT(cliprdr); + + if (!Stream_CheckAndLogRequiredLength(TAG, s, + ARRAYSIZE(cliprdr->temporaryDirectory) * sizeof(WCHAR))) + return CHANNEL_RC_NO_MEMORY; + + const WCHAR* wszTempDir = Stream_ConstPointer(s); + + if (wszTempDir[ARRAYSIZE(cliprdr->temporaryDirectory) - 1] != 0) + { + WLog_ERR(TAG, "wszTempDir[259] was not 0"); + return ERROR_INVALID_DATA; + } + + if (ConvertWCharNToUtf8(wszTempDir, ARRAYSIZE(cliprdr->temporaryDirectory), + cliprdr->temporaryDirectory, + ARRAYSIZE(cliprdr->temporaryDirectory)) < 0) + { + WLog_ERR(TAG, "failed to convert temporary directory name"); + return ERROR_INVALID_DATA; + } + + length = strnlen(cliprdr->temporaryDirectory, ARRAYSIZE(cliprdr->temporaryDirectory)); + + if (length >= ARRAYSIZE(cliprdr->temporaryDirectory)) + length = ARRAYSIZE(cliprdr->temporaryDirectory) - 1; + + CopyMemory(tempDirectory.szTempDir, cliprdr->temporaryDirectory, length); + tempDirectory.szTempDir[length] = '\0'; + WLog_DBG(TAG, "CliprdrTemporaryDirectory: %s", cliprdr->temporaryDirectory); + IFCALLRET(context->TempDirectory, error, context, &tempDirectory); + + if (error) + WLog_ERR(TAG, "TempDirectory failed with error %" PRIu32 "!", error); + + return error; +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_server_receive_format_list(CliprdrServerContext* context, wStream* s, + const CLIPRDR_HEADER* header) +{ + CLIPRDR_FORMAT_LIST formatList = { 0 }; + UINT error = CHANNEL_RC_OK; + + WINPR_ASSERT(context); + WINPR_ASSERT(header); + + formatList.common.msgType = CB_FORMAT_LIST; + formatList.common.msgFlags = header->msgFlags; + formatList.common.dataLen = header->dataLen; + + if ((error = cliprdr_read_format_list(s, &formatList, context->useLongFormatNames))) + goto out; + + WLog_DBG(TAG, "ClientFormatList: numFormats: %" PRIu32 "", formatList.numFormats); + IFCALLRET(context->ClientFormatList, error, context, &formatList); + + if (error) + WLog_ERR(TAG, "ClientFormatList failed with error %" PRIu32 "!", error); + +out: + cliprdr_free_format_list(&formatList); + return error; +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_server_receive_format_list_response(CliprdrServerContext* context, wStream* s, + const CLIPRDR_HEADER* header) +{ + CLIPRDR_FORMAT_LIST_RESPONSE formatListResponse = { 0 }; + UINT error = CHANNEL_RC_OK; + + WINPR_ASSERT(context); + WINPR_ASSERT(header); + + WINPR_UNUSED(s); + WLog_DBG(TAG, "CliprdrClientFormatListResponse"); + formatListResponse.common.msgType = CB_FORMAT_LIST_RESPONSE; + formatListResponse.common.msgFlags = header->msgFlags; + formatListResponse.common.dataLen = header->dataLen; + IFCALLRET(context->ClientFormatListResponse, error, context, &formatListResponse); + + if (error) + WLog_ERR(TAG, "ClientFormatListResponse failed with error %" PRIu32 "!", error); + + return error; +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_server_receive_lock_clipdata(CliprdrServerContext* context, wStream* s, + const CLIPRDR_HEADER* header) +{ + CLIPRDR_LOCK_CLIPBOARD_DATA lockClipboardData = { 0 }; + UINT error = CHANNEL_RC_OK; + + WINPR_ASSERT(context); + WINPR_ASSERT(header); + + WLog_DBG(TAG, "CliprdrClientLockClipData"); + + if (!Stream_CheckAndLogRequiredLength(TAG, s, 4)) + return ERROR_INVALID_DATA; + + lockClipboardData.common.msgType = CB_LOCK_CLIPDATA; + lockClipboardData.common.msgFlags = header->msgFlags; + lockClipboardData.common.dataLen = header->dataLen; + Stream_Read_UINT32(s, lockClipboardData.clipDataId); /* clipDataId (4 bytes) */ + IFCALLRET(context->ClientLockClipboardData, error, context, &lockClipboardData); + + if (error) + WLog_ERR(TAG, "ClientLockClipboardData failed with error %" PRIu32 "!", error); + + return error; +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_server_receive_unlock_clipdata(CliprdrServerContext* context, wStream* s, + const CLIPRDR_HEADER* header) +{ + CLIPRDR_UNLOCK_CLIPBOARD_DATA unlockClipboardData = { 0 }; + UINT error = CHANNEL_RC_OK; + + WINPR_ASSERT(context); + WINPR_ASSERT(header); + + WLog_DBG(TAG, "CliprdrClientUnlockClipData"); + + unlockClipboardData.common.msgType = CB_UNLOCK_CLIPDATA; + unlockClipboardData.common.msgFlags = header->msgFlags; + unlockClipboardData.common.dataLen = header->dataLen; + + if ((error = cliprdr_read_unlock_clipdata(s, &unlockClipboardData))) + return error; + + IFCALLRET(context->ClientUnlockClipboardData, error, context, &unlockClipboardData); + + if (error) + WLog_ERR(TAG, "ClientUnlockClipboardData failed with error %" PRIu32 "!", error); + + return error; +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_server_receive_format_data_request(CliprdrServerContext* context, wStream* s, + const CLIPRDR_HEADER* header) +{ + CLIPRDR_FORMAT_DATA_REQUEST formatDataRequest = { 0 }; + UINT error = CHANNEL_RC_OK; + + WINPR_ASSERT(context); + WINPR_ASSERT(header); + + WLog_DBG(TAG, "CliprdrClientFormatDataRequest"); + formatDataRequest.common.msgType = CB_FORMAT_DATA_REQUEST; + formatDataRequest.common.msgFlags = header->msgFlags; + formatDataRequest.common.dataLen = header->dataLen; + + if ((error = cliprdr_read_format_data_request(s, &formatDataRequest))) + return error; + + context->lastRequestedFormatId = formatDataRequest.requestedFormatId; + IFCALLRET(context->ClientFormatDataRequest, error, context, &formatDataRequest); + + if (error) + WLog_ERR(TAG, "ClientFormatDataRequest failed with error %" PRIu32 "!", error); + + return error; +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_server_receive_format_data_response(CliprdrServerContext* context, wStream* s, + const CLIPRDR_HEADER* header) +{ + CLIPRDR_FORMAT_DATA_RESPONSE formatDataResponse = { 0 }; + UINT error = CHANNEL_RC_OK; + + WINPR_ASSERT(context); + WINPR_ASSERT(header); + + WLog_DBG(TAG, "CliprdrClientFormatDataResponse"); + formatDataResponse.common.msgType = CB_FORMAT_DATA_RESPONSE; + formatDataResponse.common.msgFlags = header->msgFlags; + formatDataResponse.common.dataLen = header->dataLen; + + if ((error = cliprdr_read_format_data_response(s, &formatDataResponse))) + return error; + + IFCALLRET(context->ClientFormatDataResponse, error, context, &formatDataResponse); + + if (error) + WLog_ERR(TAG, "ClientFormatDataResponse failed with error %" PRIu32 "!", error); + + return error; +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_server_receive_filecontents_request(CliprdrServerContext* context, wStream* s, + const CLIPRDR_HEADER* header) +{ + CLIPRDR_FILE_CONTENTS_REQUEST request = { 0 }; + UINT error = CHANNEL_RC_OK; + + WINPR_ASSERT(context); + WINPR_ASSERT(header); + + WLog_DBG(TAG, "CliprdrClientFileContentsRequest"); + request.common.msgType = CB_FILECONTENTS_REQUEST; + request.common.msgFlags = header->msgFlags; + request.common.dataLen = header->dataLen; + + if ((error = cliprdr_read_file_contents_request(s, &request))) + return error; + + if (!context->hasHugeFileSupport) + { + if (request.nPositionHigh > 0) + return ERROR_INVALID_DATA; + if ((UINT64)request.nPositionLow + request.cbRequested > UINT32_MAX) + return ERROR_INVALID_DATA; + } + IFCALLRET(context->ClientFileContentsRequest, error, context, &request); + + if (error) + WLog_ERR(TAG, "ClientFileContentsRequest failed with error %" PRIu32 "!", error); + + return error; +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_server_receive_filecontents_response(CliprdrServerContext* context, wStream* s, + const CLIPRDR_HEADER* header) +{ + CLIPRDR_FILE_CONTENTS_RESPONSE response = { 0 }; + UINT error = CHANNEL_RC_OK; + + WINPR_ASSERT(context); + WINPR_ASSERT(header); + + WLog_DBG(TAG, "CliprdrClientFileContentsResponse"); + + response.common.msgType = CB_FILECONTENTS_RESPONSE; + response.common.msgFlags = header->msgFlags; + response.common.dataLen = header->dataLen; + + if ((error = cliprdr_read_file_contents_response(s, &response))) + return error; + + IFCALLRET(context->ClientFileContentsResponse, error, context, &response); + + if (error) + WLog_ERR(TAG, "ClientFileContentsResponse failed with error %" PRIu32 "!", error); + + return error; +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_server_receive_pdu(CliprdrServerContext* context, wStream* s, + const CLIPRDR_HEADER* header) +{ + UINT error = 0; + + WINPR_ASSERT(context); + WINPR_ASSERT(header); + + WLog_DBG(TAG, + "CliprdrServerReceivePdu: msgType: %" PRIu16 " msgFlags: 0x%04" PRIX16 + " dataLen: %" PRIu32 "", + header->msgType, header->msgFlags, header->dataLen); + + switch (header->msgType) + { + case CB_CLIP_CAPS: + if ((error = cliprdr_server_receive_capabilities(context, s, header))) + WLog_ERR(TAG, "cliprdr_server_receive_capabilities failed with error %" PRIu32 "!", + error); + + break; + + case CB_TEMP_DIRECTORY: + if ((error = cliprdr_server_receive_temporary_directory(context, s, header))) + WLog_ERR(TAG, + "cliprdr_server_receive_temporary_directory failed with error %" PRIu32 + "!", + error); + + break; + + case CB_FORMAT_LIST: + if ((error = cliprdr_server_receive_format_list(context, s, header))) + WLog_ERR(TAG, "cliprdr_server_receive_format_list failed with error %" PRIu32 "!", + error); + + break; + + case CB_FORMAT_LIST_RESPONSE: + if ((error = cliprdr_server_receive_format_list_response(context, s, header))) + WLog_ERR(TAG, + "cliprdr_server_receive_format_list_response failed with error %" PRIu32 + "!", + error); + + break; + + case CB_LOCK_CLIPDATA: + if ((error = cliprdr_server_receive_lock_clipdata(context, s, header))) + WLog_ERR(TAG, "cliprdr_server_receive_lock_clipdata failed with error %" PRIu32 "!", + error); + + break; + + case CB_UNLOCK_CLIPDATA: + if ((error = cliprdr_server_receive_unlock_clipdata(context, s, header))) + WLog_ERR(TAG, + "cliprdr_server_receive_unlock_clipdata failed with error %" PRIu32 "!", + error); + + break; + + case CB_FORMAT_DATA_REQUEST: + if ((error = cliprdr_server_receive_format_data_request(context, s, header))) + WLog_ERR(TAG, + "cliprdr_server_receive_format_data_request failed with error %" PRIu32 + "!", + error); + + break; + + case CB_FORMAT_DATA_RESPONSE: + if ((error = cliprdr_server_receive_format_data_response(context, s, header))) + WLog_ERR(TAG, + "cliprdr_server_receive_format_data_response failed with error %" PRIu32 + "!", + error); + + break; + + case CB_FILECONTENTS_REQUEST: + if ((error = cliprdr_server_receive_filecontents_request(context, s, header))) + WLog_ERR(TAG, + "cliprdr_server_receive_filecontents_request failed with error %" PRIu32 + "!", + error); + + break; + + case CB_FILECONTENTS_RESPONSE: + if ((error = cliprdr_server_receive_filecontents_response(context, s, header))) + WLog_ERR(TAG, + "cliprdr_server_receive_filecontents_response failed with error %" PRIu32 + "!", + error); + + break; + + default: + error = ERROR_INVALID_DATA; + WLog_ERR(TAG, "Unexpected clipboard PDU type: %" PRIu16 "", header->msgType); + break; + } + + return error; +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_server_init(CliprdrServerContext* context) +{ + UINT32 generalFlags = 0; + CLIPRDR_GENERAL_CAPABILITY_SET generalCapabilitySet = { 0 }; + UINT error = 0; + CLIPRDR_MONITOR_READY monitorReady = { 0 }; + CLIPRDR_CAPABILITIES capabilities = { 0 }; + + WINPR_ASSERT(context); + + monitorReady.common.msgType = CB_MONITOR_READY; + capabilities.common.msgType = CB_CLIP_CAPS; + + if (context->useLongFormatNames) + generalFlags |= CB_USE_LONG_FORMAT_NAMES; + + if (context->streamFileClipEnabled) + generalFlags |= CB_STREAM_FILECLIP_ENABLED; + + if (context->fileClipNoFilePaths) + generalFlags |= CB_FILECLIP_NO_FILE_PATHS; + + if (context->canLockClipData) + generalFlags |= CB_CAN_LOCK_CLIPDATA; + + if (context->hasHugeFileSupport) + generalFlags |= CB_HUGE_FILE_SUPPORT_ENABLED; + + capabilities.common.msgType = CB_CLIP_CAPS; + capabilities.common.msgFlags = 0; + capabilities.common.dataLen = 4 + CB_CAPSTYPE_GENERAL_LEN; + capabilities.cCapabilitiesSets = 1; + capabilities.capabilitySets = (CLIPRDR_CAPABILITY_SET*)&generalCapabilitySet; + generalCapabilitySet.capabilitySetType = CB_CAPSTYPE_GENERAL; + generalCapabilitySet.capabilitySetLength = CB_CAPSTYPE_GENERAL_LEN; + generalCapabilitySet.version = CB_CAPS_VERSION_2; + generalCapabilitySet.generalFlags = generalFlags; + + if ((error = context->ServerCapabilities(context, &capabilities))) + { + WLog_ERR(TAG, "ServerCapabilities failed with error %" PRIu32 "!", error); + return error; + } + + if ((error = context->MonitorReady(context, &monitorReady))) + { + WLog_ERR(TAG, "MonitorReady failed with error %" PRIu32 "!", error); + return error; + } + + return error; +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_server_read(CliprdrServerContext* context) +{ + wStream* s = NULL; + size_t position = 0; + DWORD BytesToRead = 0; + DWORD BytesReturned = 0; + CLIPRDR_HEADER header = { 0 }; + CliprdrServerPrivate* cliprdr = NULL; + UINT error = 0; + DWORD status = 0; + + WINPR_ASSERT(context); + + cliprdr = (CliprdrServerPrivate*)context->handle; + WINPR_ASSERT(cliprdr); + + s = cliprdr->s; + + if (Stream_GetPosition(s) < CLIPRDR_HEADER_LENGTH) + { + BytesReturned = 0; + BytesToRead = (UINT32)(CLIPRDR_HEADER_LENGTH - Stream_GetPosition(s)); + status = WaitForSingleObject(cliprdr->ChannelEvent, 0); + + if (status == WAIT_FAILED) + { + error = GetLastError(); + WLog_ERR(TAG, "WaitForSingleObject failed with error %" PRIu32 "", error); + return error; + } + + if (status == WAIT_TIMEOUT) + return CHANNEL_RC_OK; + + if (!WTSVirtualChannelRead(cliprdr->ChannelHandle, 0, Stream_Pointer(s), BytesToRead, + &BytesReturned)) + { + WLog_ERR(TAG, "WTSVirtualChannelRead failed!"); + return ERROR_INTERNAL_ERROR; + } + + Stream_Seek(s, BytesReturned); + } + + if (Stream_GetPosition(s) >= CLIPRDR_HEADER_LENGTH) + { + position = Stream_GetPosition(s); + Stream_SetPosition(s, 0); + Stream_Read_UINT16(s, header.msgType); /* msgType (2 bytes) */ + Stream_Read_UINT16(s, header.msgFlags); /* msgFlags (2 bytes) */ + Stream_Read_UINT32(s, header.dataLen); /* dataLen (4 bytes) */ + + if (!Stream_EnsureCapacity(s, (header.dataLen + CLIPRDR_HEADER_LENGTH))) + { + WLog_ERR(TAG, "Stream_EnsureCapacity failed!"); + return CHANNEL_RC_NO_MEMORY; + } + + Stream_SetPosition(s, position); + + if (Stream_GetPosition(s) < (header.dataLen + CLIPRDR_HEADER_LENGTH)) + { + BytesReturned = 0; + BytesToRead = + (UINT32)((header.dataLen + CLIPRDR_HEADER_LENGTH) - Stream_GetPosition(s)); + status = WaitForSingleObject(cliprdr->ChannelEvent, 0); + + if (status == WAIT_FAILED) + { + error = GetLastError(); + WLog_ERR(TAG, "WaitForSingleObject failed with error %" PRIu32 "", error); + return error; + } + + if (status == WAIT_TIMEOUT) + return CHANNEL_RC_OK; + + if (!WTSVirtualChannelRead(cliprdr->ChannelHandle, 0, Stream_Pointer(s), BytesToRead, + &BytesReturned)) + { + WLog_ERR(TAG, "WTSVirtualChannelRead failed!"); + return ERROR_INTERNAL_ERROR; + } + + Stream_Seek(s, BytesReturned); + } + + if (Stream_GetPosition(s) >= (header.dataLen + CLIPRDR_HEADER_LENGTH)) + { + Stream_SetPosition(s, (header.dataLen + CLIPRDR_HEADER_LENGTH)); + Stream_SealLength(s); + Stream_SetPosition(s, CLIPRDR_HEADER_LENGTH); + + if ((error = cliprdr_server_receive_pdu(context, s, &header))) + { + WLog_ERR(TAG, "cliprdr_server_receive_pdu failed with error code %" PRIu32 "!", + error); + return error; + } + + Stream_SetPosition(s, 0); + /* check for trailing zero bytes */ + status = WaitForSingleObject(cliprdr->ChannelEvent, 0); + + if (status == WAIT_FAILED) + { + error = GetLastError(); + WLog_ERR(TAG, "WaitForSingleObject failed with error %" PRIu32 "", error); + return error; + } + + if (status == WAIT_TIMEOUT) + return CHANNEL_RC_OK; + + BytesReturned = 0; + BytesToRead = 4; + + if (!WTSVirtualChannelRead(cliprdr->ChannelHandle, 0, Stream_Pointer(s), BytesToRead, + &BytesReturned)) + { + WLog_ERR(TAG, "WTSVirtualChannelRead failed!"); + return ERROR_INTERNAL_ERROR; + } + + if (BytesReturned == 4) + { + Stream_Read_UINT16(s, header.msgType); /* msgType (2 bytes) */ + Stream_Read_UINT16(s, header.msgFlags); /* msgFlags (2 bytes) */ + + if (!header.msgType) + { + /* ignore trailing bytes */ + Stream_SetPosition(s, 0); + } + } + else + { + Stream_Seek(s, BytesReturned); + } + } + } + + return CHANNEL_RC_OK; +} + +static DWORD WINAPI cliprdr_server_thread(LPVOID arg) +{ + DWORD status = 0; + DWORD nCount = 0; + HANDLE events[MAXIMUM_WAIT_OBJECTS] = { 0 }; + HANDLE ChannelEvent = NULL; + CliprdrServerContext* context = (CliprdrServerContext*)arg; + CliprdrServerPrivate* cliprdr = NULL; + UINT error = CHANNEL_RC_OK; + + WINPR_ASSERT(context); + + cliprdr = (CliprdrServerPrivate*)context->handle; + WINPR_ASSERT(cliprdr); + + ChannelEvent = context->GetEventHandle(context); + + events[nCount++] = cliprdr->StopEvent; + events[nCount++] = ChannelEvent; + + if (context->autoInitializationSequence) + { + if ((error = cliprdr_server_init(context))) + { + WLog_ERR(TAG, "cliprdr_server_init failed with error %" PRIu32 "!", error); + goto out; + } + } + + while (1) + { + status = WaitForMultipleObjects(nCount, events, FALSE, INFINITE); + + if (status == WAIT_FAILED) + { + error = GetLastError(); + WLog_ERR(TAG, "WaitForMultipleObjects failed with error %" PRIu32 "", error); + goto out; + } + + status = WaitForSingleObject(cliprdr->StopEvent, 0); + + if (status == WAIT_FAILED) + { + error = GetLastError(); + WLog_ERR(TAG, "WaitForSingleObject failed with error %" PRIu32 "", error); + goto out; + } + + if (status == WAIT_OBJECT_0) + break; + + status = WaitForSingleObject(ChannelEvent, 0); + + if (status == WAIT_FAILED) + { + error = GetLastError(); + WLog_ERR(TAG, "WaitForSingleObject failed with error %" PRIu32 "", error); + goto out; + } + + if (status == WAIT_OBJECT_0) + { + if ((error = context->CheckEventHandle(context))) + { + WLog_ERR(TAG, "CheckEventHandle failed with error %" PRIu32 "!", error); + break; + } + } + } + +out: + + if (error && context->rdpcontext) + setChannelError(context->rdpcontext, error, "cliprdr_server_thread reported an error"); + + ExitThread(error); + return error; +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_server_open(CliprdrServerContext* context) +{ + void* buffer = NULL; + DWORD BytesReturned = 0; + CliprdrServerPrivate* cliprdr = NULL; + + WINPR_ASSERT(context); + + cliprdr = (CliprdrServerPrivate*)context->handle; + WINPR_ASSERT(cliprdr); + + cliprdr->ChannelHandle = + WTSVirtualChannelOpen(cliprdr->vcm, WTS_CURRENT_SESSION, CLIPRDR_SVC_CHANNEL_NAME); + + if (!cliprdr->ChannelHandle) + { + WLog_ERR(TAG, "WTSVirtualChannelOpen for cliprdr failed!"); + return ERROR_INTERNAL_ERROR; + } + + cliprdr->ChannelEvent = NULL; + + if (WTSVirtualChannelQuery(cliprdr->ChannelHandle, WTSVirtualEventHandle, &buffer, + &BytesReturned)) + { + if (BytesReturned != sizeof(HANDLE)) + { + WLog_ERR(TAG, "BytesReturned has not size of HANDLE!"); + return ERROR_INTERNAL_ERROR; + } + + CopyMemory(&(cliprdr->ChannelEvent), buffer, sizeof(HANDLE)); + WTSFreeMemory(buffer); + } + + if (!cliprdr->ChannelEvent) + { + WLog_ERR(TAG, "WTSVirtualChannelQuery for cliprdr failed!"); + return ERROR_INTERNAL_ERROR; + } + + return CHANNEL_RC_OK; +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_server_close(CliprdrServerContext* context) +{ + CliprdrServerPrivate* cliprdr = NULL; + + WINPR_ASSERT(context); + + cliprdr = (CliprdrServerPrivate*)context->handle; + WINPR_ASSERT(cliprdr); + + if (cliprdr->ChannelHandle) + { + WTSVirtualChannelClose(cliprdr->ChannelHandle); + cliprdr->ChannelHandle = NULL; + } + + return CHANNEL_RC_OK; +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_server_start(CliprdrServerContext* context) +{ + UINT error = 0; + CliprdrServerPrivate* cliprdr = NULL; + + WINPR_ASSERT(context); + + cliprdr = (CliprdrServerPrivate*)context->handle; + WINPR_ASSERT(cliprdr); + + if (!cliprdr->ChannelHandle) + { + if ((error = context->Open(context))) + { + WLog_ERR(TAG, "Open failed!"); + return error; + } + } + + if (!(cliprdr->StopEvent = CreateEvent(NULL, TRUE, FALSE, NULL))) + { + WLog_ERR(TAG, "CreateEvent failed!"); + return ERROR_INTERNAL_ERROR; + } + + if (!(cliprdr->Thread = CreateThread(NULL, 0, cliprdr_server_thread, (void*)context, 0, NULL))) + { + WLog_ERR(TAG, "CreateThread failed!"); + CloseHandle(cliprdr->StopEvent); + cliprdr->StopEvent = NULL; + return ERROR_INTERNAL_ERROR; + } + + return CHANNEL_RC_OK; +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_server_stop(CliprdrServerContext* context) +{ + UINT error = CHANNEL_RC_OK; + CliprdrServerPrivate* cliprdr = NULL; + + WINPR_ASSERT(context); + + cliprdr = (CliprdrServerPrivate*)context->handle; + WINPR_ASSERT(cliprdr); + + if (cliprdr->StopEvent) + { + SetEvent(cliprdr->StopEvent); + + if (WaitForSingleObject(cliprdr->Thread, INFINITE) == WAIT_FAILED) + { + error = GetLastError(); + WLog_ERR(TAG, "WaitForSingleObject failed with error %" PRIu32 "", error); + return error; + } + + CloseHandle(cliprdr->Thread); + CloseHandle(cliprdr->StopEvent); + } + + if (cliprdr->ChannelHandle) + return context->Close(context); + + return error; +} + +static HANDLE cliprdr_server_get_event_handle(CliprdrServerContext* context) +{ + CliprdrServerPrivate* cliprdr = NULL; + + WINPR_ASSERT(context); + + cliprdr = (CliprdrServerPrivate*)context->handle; + WINPR_ASSERT(cliprdr); + return cliprdr->ChannelEvent; +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_server_check_event_handle(CliprdrServerContext* context) +{ + return cliprdr_server_read(context); +} + +CliprdrServerContext* cliprdr_server_context_new(HANDLE vcm) +{ + CliprdrServerPrivate* cliprdr = NULL; + CliprdrServerContext* context = (CliprdrServerContext*)calloc(1, sizeof(CliprdrServerContext)); + + if (context) + { + context->autoInitializationSequence = TRUE; + context->Open = cliprdr_server_open; + context->Close = cliprdr_server_close; + context->Start = cliprdr_server_start; + context->Stop = cliprdr_server_stop; + context->GetEventHandle = cliprdr_server_get_event_handle; + context->CheckEventHandle = cliprdr_server_check_event_handle; + context->ServerCapabilities = cliprdr_server_capabilities; + context->MonitorReady = cliprdr_server_monitor_ready; + context->ServerFormatList = cliprdr_server_format_list; + context->ServerFormatListResponse = cliprdr_server_format_list_response; + context->ServerLockClipboardData = cliprdr_server_lock_clipboard_data; + context->ServerUnlockClipboardData = cliprdr_server_unlock_clipboard_data; + context->ServerFormatDataRequest = cliprdr_server_format_data_request; + context->ServerFormatDataResponse = cliprdr_server_format_data_response; + context->ServerFileContentsRequest = cliprdr_server_file_contents_request; + context->ServerFileContentsResponse = cliprdr_server_file_contents_response; + cliprdr = context->handle = (CliprdrServerPrivate*)calloc(1, sizeof(CliprdrServerPrivate)); + + if (cliprdr) + { + cliprdr->vcm = vcm; + cliprdr->s = Stream_New(NULL, 4096); + + if (!cliprdr->s) + { + WLog_ERR(TAG, "Stream_New failed!"); + free(context->handle); + free(context); + return NULL; + } + } + else + { + WLog_ERR(TAG, "calloc failed!"); + free(context); + return NULL; + } + } + + return context; +} + +void cliprdr_server_context_free(CliprdrServerContext* context) +{ + CliprdrServerPrivate* cliprdr = NULL; + + if (!context) + return; + + cliprdr = (CliprdrServerPrivate*)context->handle; + + if (cliprdr) + { + Stream_Free(cliprdr->s, TRUE); + } + + free(context->handle); + free(context); +} |