/**
* WinPR: Windows Portable Runtime
* Clipboard Functions
*
* Copyright 2014 Marc-Andre Moreau <marcandre.moreau@gmail.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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <errno.h>
#include <winpr/crt.h>
#include <winpr/user.h>
#include "clipboard.h"
/**
* Standard Clipboard Formats:
* http://msdn.microsoft.com/en-us/library/windows/desktop/ff729168/
*/
/**
* "CF_TEXT":
*
* Null-terminated ANSI text with CR/LF line endings.
*/
static void* clipboard_synthesize_cf_text(wClipboard* clipboard, UINT32 formatId, const void* data,
UINT32* pSize)
{
int size;
char* pDstData = NULL;
if (formatId == CF_UNICODETEXT)
{
size_t wsize;
char* str = NULL;
if (*pSize > INT32_MAX)
return NULL;
wsize = _wcsnlen(data, (*pSize) / 2);
size = ConvertFromUnicode(CP_UTF8, 0, (LPCWSTR)data, wsize, (CHAR**)&str, 0, NULL, NULL);
if (!str)
return NULL;
pDstData = ConvertLineEndingToCRLF((const char*)str, &size);
free(str);
*pSize = size;
return pDstData;
}
else if ((formatId == CF_TEXT) || (formatId == CF_OEMTEXT) ||
(formatId == ClipboardGetFormatId(clipboard, "UTF8_STRING")) ||
(formatId == ClipboardGetFormatId(clipboard, "text/plain")) ||
(formatId == ClipboardGetFormatId(clipboard, "TEXT")) ||
(formatId == ClipboardGetFormatId(clipboard, "STRING")))
{
size = (INT64)*pSize;
pDstData = ConvertLineEndingToCRLF((const char*)data, &size);
if (!pDstData)
return NULL;
*pSize = size;
return pDstData;
}
return NULL;
}
/**
* "CF_OEMTEXT":
*
* Null-terminated OEM text with CR/LF line endings.
*/
static void* clipboard_synthesize_cf_oemtext(wClipboard* clipboard, UINT32 formatId,
const void* data, UINT32* pSize)
{
return clipboard_synthesize_cf_text(clipboard, formatId, data, pSize);
}
/**
* "CF_LOCALE":
*
* System locale identifier associated with CF_TEXT
*/
static void* clipboard_synthesize_cf_locale(wClipboard* clipboard, UINT32 formatId,
const void* data, UINT32* pSize)
{
UINT32* pDstData = NULL;
pDstData = (UINT32*)malloc(sizeof(UINT32));
if (!pDstData)
return NULL;
*pDstData = 0x0409; /* English - United States */
return (void*)pDstData;
}
/**
* "CF_UNICODETEXT":
*
* Null-terminated UTF-16 text with CR/LF line endings.
*/
static void* clipboard_synthesize_cf_unicodetext(wClipboard* clipboard, UINT32 formatId,
const void* data, UINT32* pSize)
{
int size;
int status;
char* crlfStr = NULL;
WCHAR* pDstData = NULL;
if ((formatId == CF_TEXT) || (formatId == CF_OEMTEXT) ||
(formatId == ClipboardGetFormatId(clipboard, "UTF8_STRING")) ||
(formatId == ClipboardGetFormatId(clipboard, "text/plain")) ||
(formatId == ClipboardGetFormatId(clipboard, "TEXT")) ||
(formatId == ClipboardGetFormatId(clipboard, "STRING")))
{
if (!pSize || (*pSize > INT32_MAX))
return NULL;
size = (int)*pSize;
crlfStr = ConvertLineEndingToCRLF((char*)data, &size);
if (!crlfStr)
return NULL;
status = ConvertToUnicode(CP_UTF8, 0, crlfStr, size, &pDstData, 0);
free(crlfStr);
if (status <= 0)
return NULL;
*pSize = status * 2;
}
return (void*)pDstData;
}
/**
* "UTF8_STRING":
*
* Null-terminated UTF-8 string with LF line endings.
*/
static void* clipboard_synthesize_utf8_string(wClipboard* clipboard, UINT32 formatId,
const void* data, UINT32* pSize)
{
INT64 size;
char* pDstData = NULL;
if (formatId == CF_UNICODETEXT)
{
size_t wsize = _wcsnlen(data, (*pSize) / 2);
size =
ConvertFromUnicode(CP_UTF8, 0, (LPWSTR)data, wsize, (CHAR**)&pDstData, 0, NULL, NULL);
if (!pDstData)
return NULL;
size = ConvertLineEndingToLF(pDstData, size);
*pSize = size;
return pDstData;
}
else if ((formatId == CF_TEXT) || (formatId == CF_OEMTEXT) ||
(formatId == ClipboardGetFormatId(clipboard, "text/plain")) ||
(formatId == ClipboardGetFormatId(clipboard, "TEXT")) ||
(formatId == ClipboardGetFormatId(clipboard, "STRING")))
{
size = (INT64)*pSize;
pDstData = (char*)malloc(size);
if (!pDstData)
return NULL;
CopyMemory(pDstData, data, size);
size = ConvertLineEndingToLF((char*)pDstData, size);
*pSize = size;
return pDstData;
}
return NULL;
}
/**
* "CF_DIB":
*
* BITMAPINFO structure followed by the bitmap bits.
*/
static void* clipboard_synthesize_cf_dib(wClipboard* clipboard, UINT32 formatId, const void* data,
UINT32* pSize)
{
UINT32 SrcSize;
UINT32 DstSize;
BYTE* pDstData;
SrcSize = *pSize;
if (formatId == CF_DIBV5)
{
}
else if (formatId == ClipboardGetFormatId(clipboard, "image/bmp"))
{
BITMAPFILEHEADER* pFileHeader;
if (SrcSize < (sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER)))
return NULL;
pFileHeader = (BITMAPFILEHEADER*)data;
if (pFileHeader->bfType != 0x4D42)
return NULL;
DstSize = SrcSize - sizeof(BITMAPFILEHEADER);
pDstData = (BYTE*)malloc(DstSize);
if (!pDstData)
return NULL;
data = (void*)&((BYTE*)data)[sizeof(BITMAPFILEHEADER)];
CopyMemory(pDstData, data, DstSize);
*pSize = DstSize;
return pDstData;
}
return NULL;
}
/**
* "CF_DIBV5":
*
* BITMAPV5HEADER structure followed by the bitmap color space information and the bitmap bits.
*/
static void* clipboard_synthesize_cf_dibv5(wClipboard* clipboard, UINT32 formatId, const void* data,
UINT32* pSize)
{
if (formatId == CF_DIB)
{
}
else if (formatId == ClipboardGetFormatId(clipboard, "image/bmp"))
{
}
return NULL;
}
/**
* "image/bmp":
*
* Bitmap file format.
*/
static void* clipboard_synthesize_image_bmp(wClipboard* clipboard, UINT32 formatId,
const void* data, UINT32* pSize)
{
UINT32 SrcSize;
UINT32 DstSize;
BYTE* pDstData;
SrcSize = *pSize;
if (formatId == CF_DIB)
{
BYTE* pDst;
BITMAPINFOHEADER* pInfoHeader;
BITMAPFILEHEADER* pFileHeader;
if (SrcSize < sizeof(BITMAPINFOHEADER))
return NULL;
pInfoHeader = (BITMAPINFOHEADER*)data;
if ((pInfoHeader->biBitCount < 1) || (pInfoHeader->biBitCount > 32))
return NULL;
DstSize = sizeof(BITMAPFILEHEADER) + SrcSize;
pDstData = (BYTE*)malloc(DstSize);
if (!pDstData)
return NULL;
pFileHeader = (BITMAPFILEHEADER*)pDstData;
pFileHeader->bfType = 0x4D42;
pFileHeader->bfSize = DstSize;
pFileHeader->bfReserved1 = 0;
pFileHeader->bfReserved2 = 0;
pFileHeader->bfOffBits = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER);
pDst = &pDstData[sizeof(BITMAPFILEHEADER)];
CopyMemory(pDst, data, SrcSize);
*pSize = DstSize;
return pDstData;
}
else if (formatId == CF_DIBV5)
{
}
return NULL;
}
/**
* "HTML Format":
*
* HTML clipboard format: msdn.microsoft.com/en-us/library/windows/desktop/ms649015/
*/
static void* clipboard_synthesize_html_format(wClipboard* clipboard, UINT32 formatId,
const void* data, UINT32* pSize)
{
char* pSrcData = NULL;
char* pDstData = NULL;
INT64 SrcSize = (INT64)*pSize;
if (formatId == ClipboardGetFormatId(clipboard, "text/html"))
{
char* body;
BYTE bom[2];
char num[20];
WCHAR* wstr;
if (SrcSize > 2)
{
CopyMemory(bom, data, 2);
if ((bom[0] == 0xFE) && (bom[1] == 0xFF))
{
ByteSwapUnicode((WCHAR*)data, SrcSize / 2);
}
if ((bom[0] == 0xFF) && (bom[1] == 0xFE))
{
wstr = (WCHAR*)&((BYTE*)data)[2];
ConvertFromUnicode(CP_UTF8, 0, wstr, (SrcSize - 2) / 2, &pSrcData, 0, NULL, NULL);
}
}
if (!pSrcData)
{
pSrcData = (char*)calloc(1, SrcSize + 1);
if (!pSrcData)
return NULL;
CopyMemory(pSrcData, data, SrcSize);
}
pDstData = (char*)calloc(1, SrcSize + 200);
if (!pDstData)
{
free(pSrcData);
return NULL;
}
sprintf_s(pDstData, SrcSize + 200,
"Version:0.9\r\n"
"StartHTML:0000000000\r\n"
"EndHTML:0000000000\r\n"
"StartFragment:0000000000\r\n"
"EndFragment:0000000000\r\n");
body = strstr(pSrcData, "<body");
if (!body)
body = strstr(pSrcData, "<BODY");
/* StartHTML */
sprintf_s(num, sizeof(num), "%010" PRIuz "", strnlen(pDstData, SrcSize + 200));
CopyMemory(&pDstData[23], num, 10);
if (!body)
strcat(pDstData, "<HTML><BODY>");
strcat(pDstData, "<!--StartFragment-->");
/* StartFragment */
sprintf_s(num, sizeof(num), "%010" PRIuz "", strnlen(pDstData, SrcSize + 200));
CopyMemory(&pDstData[69], num, 10);
strcat(pDstData, pSrcData);
/* EndFragment */
sprintf_s(num, sizeof(num), "%010" PRIuz "", strnlen(pDstData, SrcSize + 200));
CopyMemory(&pDstData[93], num, 10);
strcat(pDstData, "<!--EndFragment-->");
if (!body)
strcat(pDstData, "</BODY></HTML>");
/* EndHTML */
sprintf_s(num, sizeof(num), "%010" PRIuz "", strnlen(pDstData, SrcSize + 200));
CopyMemory(&pDstData[43], num, 10);
*pSize = (UINT32)strlen(pDstData) + 1;
free(pSrcData);
}
return pDstData;
}
/**
* "text/html":
*
* HTML text format.
*/
static void* clipboard_synthesize_text_html(wClipboard* clipboard, UINT32 formatId,
const void* data, UINT32* pSize)
{
long beg;
long end;
char* str;
char* begStr;
char* endStr;
INT64 SrcSize;
long DstSize = -1;
BYTE* pDstData = NULL;
if (formatId == ClipboardGetFormatId(clipboard, "HTML Format"))
{
str = (char*)data;
SrcSize = (INT64)*pSize;
begStr = strstr(str, "StartHTML:");
endStr = strstr(str, "EndHTML:");
if (!begStr || !endStr)
return NULL;
errno = 0;
beg = strtol(&begStr[10], NULL, 10);
if (errno != 0)
return NULL;
end = strtol(&endStr[8], NULL, 10);
if (beg < 0 || end < 0 || (beg > SrcSize) || (end > SrcSize) || (beg >= end) ||
(errno != 0))
return NULL;
DstSize = end - beg;
pDstData = (BYTE*)malloc(SrcSize - beg + 1);
if (!pDstData)
return NULL;
CopyMemory(pDstData, &str[beg], DstSize);
DstSize = ConvertLineEndingToLF((char*)pDstData, DstSize);
*pSize = (UINT32)DstSize;
}
return (void*)pDstData;
}
BOOL ClipboardInitSynthesizers(wClipboard* clipboard)
{
UINT32 formatId;
UINT32 altFormatId;
/**
* CF_TEXT
*/
ClipboardRegisterSynthesizer(clipboard, CF_TEXT, CF_OEMTEXT, clipboard_synthesize_cf_oemtext);
ClipboardRegisterSynthesizer(clipboard, CF_TEXT, CF_UNICODETEXT,
clipboard_synthesize_cf_unicodetext);
ClipboardRegisterSynthesizer(clipboard, CF_TEXT, CF_LOCALE, clipboard_synthesize_cf_locale);
altFormatId = ClipboardRegisterFormat(clipboard, "UTF8_STRING");
ClipboardRegisterSynthesizer(clipboard, CF_TEXT, altFormatId, clipboard_synthesize_utf8_string);
/**
* CF_OEMTEXT
*/
ClipboardRegisterSynthesizer(clipboard, CF_OEMTEXT, CF_TEXT, clipboard_synthesize_cf_text);
ClipboardRegisterSynthesizer(clipboard, CF_OEMTEXT, CF_UNICODETEXT,
clipboard_synthesize_cf_unicodetext);
ClipboardRegisterSynthesizer(clipboard, CF_OEMTEXT, CF_LOCALE, clipboard_synthesize_cf_locale);
altFormatId = ClipboardRegisterFormat(clipboard, "UTF8_STRING");
ClipboardRegisterSynthesizer(clipboard, CF_OEMTEXT, altFormatId,
clipboard_synthesize_utf8_string);
/**
* CF_UNICODETEXT
*/
ClipboardRegisterSynthesizer(clipboard, CF_UNICODETEXT, CF_TEXT, clipboard_synthesize_cf_text);
ClipboardRegisterSynthesizer(clipboard, CF_UNICODETEXT, CF_OEMTEXT,
clipboard_synthesize_cf_oemtext);
ClipboardRegisterSynthesizer(clipboard, CF_UNICODETEXT, CF_LOCALE,
clipboard_synthesize_cf_locale);
altFormatId = ClipboardRegisterFormat(clipboard, "UTF8_STRING");
ClipboardRegisterSynthesizer(clipboard, CF_UNICODETEXT, altFormatId,
clipboard_synthesize_utf8_string);
/**
* UTF8_STRING
*/
formatId = ClipboardRegisterFormat(clipboard, "UTF8_STRING");
if (formatId)
{
ClipboardRegisterSynthesizer(clipboard, formatId, CF_TEXT, clipboard_synthesize_cf_text);
ClipboardRegisterSynthesizer(clipboard, formatId, CF_OEMTEXT,
clipboard_synthesize_cf_oemtext);
ClipboardRegisterSynthesizer(clipboard, formatId, CF_UNICODETEXT,
clipboard_synthesize_cf_unicodetext);
ClipboardRegisterSynthesizer(clipboard, formatId, CF_LOCALE,
clipboard_synthesize_cf_locale);
}
/**
* text/plain
*/
formatId = ClipboardRegisterFormat(clipboard, "text/plain");
if (formatId)
{
ClipboardRegisterSynthesizer(clipboard, formatId, CF_TEXT, clipboard_synthesize_cf_text);
ClipboardRegisterSynthesizer(clipboard, formatId, CF_OEMTEXT,
clipboard_synthesize_cf_oemtext);
ClipboardRegisterSynthesizer(clipboard, formatId, CF_UNICODETEXT,
clipboard_synthesize_cf_unicodetext);
ClipboardRegisterSynthesizer(clipboard, formatId, CF_LOCALE,
clipboard_synthesize_cf_locale);
}
/**
* TEXT
*/
formatId = ClipboardRegisterFormat(clipboard, "TEXT");
if (formatId)
{
ClipboardRegisterSynthesizer(clipboard, formatId, CF_TEXT, clipboard_synthesize_cf_text);
ClipboardRegisterSynthesizer(clipboard, formatId, CF_OEMTEXT,
clipboard_synthesize_cf_oemtext);
ClipboardRegisterSynthesizer(clipboard, formatId, CF_UNICODETEXT,
clipboard_synthesize_cf_unicodetext);
ClipboardRegisterSynthesizer(clipboard, formatId, CF_LOCALE,
clipboard_synthesize_cf_locale);
}
/**
* STRING
*/
formatId = ClipboardRegisterFormat(clipboard, "STRING");
if (formatId)
{
ClipboardRegisterSynthesizer(clipboard, formatId, CF_TEXT, clipboard_synthesize_cf_text);
ClipboardRegisterSynthesizer(clipboard, formatId, CF_OEMTEXT,
clipboard_synthesize_cf_oemtext);
ClipboardRegisterSynthesizer(clipboard, formatId, CF_UNICODETEXT,
clipboard_synthesize_cf_unicodetext);
ClipboardRegisterSynthesizer(clipboard, formatId, CF_LOCALE,
clipboard_synthesize_cf_locale);
}
/**
* CF_DIB
*/
if (formatId)
{
ClipboardRegisterSynthesizer(clipboard, CF_DIB, CF_DIBV5, clipboard_synthesize_cf_dibv5);
altFormatId = ClipboardRegisterFormat(clipboard, "image/bmp");
ClipboardRegisterSynthesizer(clipboard, CF_DIB, altFormatId,
clipboard_synthesize_image_bmp);
}
/**
* CF_DIBV5
*/
if (formatId && 0)
{
ClipboardRegisterSynthesizer(clipboard, CF_DIBV5, CF_DIB, clipboard_synthesize_cf_dib);
altFormatId = ClipboardRegisterFormat(clipboard, "image/bmp");
ClipboardRegisterSynthesizer(clipboard, CF_DIBV5, altFormatId,
clipboard_synthesize_image_bmp);
}
/**
* image/bmp
*/
formatId = ClipboardRegisterFormat(clipboard, "image/bmp");
if (formatId)
{
ClipboardRegisterSynthesizer(clipboard, formatId, CF_DIB, clipboard_synthesize_cf_dib);
ClipboardRegisterSynthesizer(clipboard, formatId, CF_DIBV5, clipboard_synthesize_cf_dibv5);
}
/**
* HTML Format
*/
formatId = ClipboardRegisterFormat(clipboard, "HTML Format");
if (formatId)
{
altFormatId = ClipboardRegisterFormat(clipboard, "text/html");
ClipboardRegisterSynthesizer(clipboard, formatId, altFormatId,
clipboard_synthesize_text_html);
}
/**
* text/html
*/
formatId = ClipboardRegisterFormat(clipboard, "text/html");
if (formatId)
{
altFormatId = ClipboardRegisterFormat(clipboard, "HTML Format");
ClipboardRegisterSynthesizer(clipboard, formatId, altFormatId,
clipboard_synthesize_html_format);
}
return TRUE;
}