604 lines
15 KiB
C
604 lines
15 KiB
C
/**
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* WinPR: Windows Portable Runtime
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* Clipboard Functions
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*
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* Copyright 2014 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <winpr/config.h>
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#include <errno.h>
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#include <winpr/crt.h>
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#include <winpr/user.h>
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#include "clipboard.h"
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/**
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* Standard Clipboard Formats:
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* http://msdn.microsoft.com/en-us/library/windows/desktop/ff729168/
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*/
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/**
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* "CF_TEXT":
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*
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* Null-terminated ANSI text with CR/LF line endings.
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*/
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static void* clipboard_synthesize_cf_text(wClipboard* clipboard, UINT32 formatId, const void* data,
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UINT32* pSize)
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{
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size_t size = 0;
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char* pDstData = NULL;
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if (formatId == CF_UNICODETEXT)
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{
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char* str = ConvertWCharNToUtf8Alloc(data, *pSize / sizeof(WCHAR), &size);
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if (!str)
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return NULL;
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pDstData = ConvertLineEndingToCRLF(str, &size);
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free(str);
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*pSize = size;
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return pDstData;
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}
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else if ((formatId == CF_TEXT) || (formatId == CF_OEMTEXT) ||
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(formatId == ClipboardGetFormatId(clipboard, mime_text_plain)))
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{
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size = *pSize;
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pDstData = ConvertLineEndingToCRLF(data, &size);
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if (!pDstData)
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return NULL;
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*pSize = size;
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return pDstData;
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}
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return NULL;
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}
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/**
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* "CF_OEMTEXT":
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*
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* Null-terminated OEM text with CR/LF line endings.
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*/
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static void* clipboard_synthesize_cf_oemtext(wClipboard* clipboard, UINT32 formatId,
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const void* data, UINT32* pSize)
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{
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return clipboard_synthesize_cf_text(clipboard, formatId, data, pSize);
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}
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/**
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* "CF_LOCALE":
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*
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* System locale identifier associated with CF_TEXT
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*/
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static void* clipboard_synthesize_cf_locale(wClipboard* clipboard, UINT32 formatId,
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const void* data, UINT32* pSize)
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{
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UINT32* pDstData = NULL;
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pDstData = (UINT32*)malloc(sizeof(UINT32));
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if (!pDstData)
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return NULL;
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*pDstData = 0x0409; /* English - United States */
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return (void*)pDstData;
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}
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/**
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* "CF_UNICODETEXT":
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*
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* Null-terminated UTF-16 text with CR/LF line endings.
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*/
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static void* clipboard_synthesize_cf_unicodetext(wClipboard* clipboard, UINT32 formatId,
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const void* data, UINT32* pSize)
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{
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size_t size = 0;
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char* crlfStr = NULL;
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WCHAR* pDstData = NULL;
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if ((formatId == CF_TEXT) || (formatId == CF_OEMTEXT) ||
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(formatId == ClipboardGetFormatId(clipboard, mime_text_plain)))
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{
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size_t len = 0;
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if (!pSize || (*pSize > INT32_MAX))
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return NULL;
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size = *pSize;
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crlfStr = ConvertLineEndingToCRLF((const char*)data, &size);
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if (!crlfStr)
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return NULL;
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pDstData = ConvertUtf8NToWCharAlloc(crlfStr, size, &len);
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free(crlfStr);
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if ((len < 1) || (len > UINT32_MAX / sizeof(WCHAR)))
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{
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free(pDstData);
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return NULL;
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}
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*pSize = (len + 1) * sizeof(WCHAR);
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}
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return (void*)pDstData;
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}
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/**
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* mime_utf8_string:
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*
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* Null-terminated UTF-8 string with LF line endings.
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*/
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static void* clipboard_synthesize_utf8_string(wClipboard* clipboard, UINT32 formatId,
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const void* data, UINT32* pSize)
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{
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size_t size = 0;
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char* pDstData = NULL;
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if (formatId == CF_UNICODETEXT)
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{
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pDstData = ConvertWCharNToUtf8Alloc(data, *pSize / sizeof(WCHAR), &size);
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if (!pDstData)
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return NULL;
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size = ConvertLineEndingToLF(pDstData, size);
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*pSize = (UINT32)size;
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return pDstData;
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}
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else if ((formatId == CF_TEXT) || (formatId == CF_OEMTEXT) ||
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(formatId == ClipboardGetFormatId(clipboard, mime_text_plain)))
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{
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int rc = 0;
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size = *pSize;
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pDstData = (char*)malloc(size);
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if (!pDstData)
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return NULL;
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CopyMemory(pDstData, data, size);
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rc = ConvertLineEndingToLF(pDstData, size);
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if (rc < 0)
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{
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free(pDstData);
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return NULL;
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}
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*pSize = (UINT32)rc;
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return pDstData;
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}
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return NULL;
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}
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/**
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* "CF_DIB":
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*
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* BITMAPINFO structure followed by the bitmap bits.
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*/
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static void* clipboard_synthesize_cf_dib(wClipboard* clipboard, UINT32 formatId, const void* data,
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UINT32* pSize)
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{
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UINT32 SrcSize = 0;
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UINT32 DstSize = 0;
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BYTE* pDstData = NULL;
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SrcSize = *pSize;
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if (formatId == CF_DIBV5)
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{
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}
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else if (formatId == ClipboardGetFormatId(clipboard, "image/bmp"))
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{
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const BITMAPFILEHEADER* pFileHeader = NULL;
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if (SrcSize < (sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER)))
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return NULL;
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pFileHeader = (const BITMAPFILEHEADER*)data;
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if (pFileHeader->bfType != 0x4D42)
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return NULL;
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DstSize = SrcSize - sizeof(BITMAPFILEHEADER);
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pDstData = (BYTE*)malloc(DstSize);
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if (!pDstData)
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return NULL;
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data = (const void*)&((const BYTE*)data)[sizeof(BITMAPFILEHEADER)];
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CopyMemory(pDstData, data, DstSize);
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*pSize = DstSize;
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return pDstData;
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}
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return NULL;
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}
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/**
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* "CF_DIBV5":
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*
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* BITMAPV5HEADER structure followed by the bitmap color space information and the bitmap bits.
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*/
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static void* clipboard_synthesize_cf_dibv5(wClipboard* clipboard, UINT32 formatId, const void* data,
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UINT32* pSize)
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{
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if (formatId == CF_DIB)
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{
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}
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else if (formatId == ClipboardGetFormatId(clipboard, "image/bmp"))
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{
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}
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return NULL;
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}
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/**
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* "image/bmp":
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*
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* Bitmap file format.
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*/
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static void* clipboard_synthesize_image_bmp(wClipboard* clipboard, UINT32 formatId,
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const void* data, UINT32* pSize)
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{
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UINT32 SrcSize = 0;
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UINT32 DstSize = 0;
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BYTE* pDstData = NULL;
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SrcSize = *pSize;
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if (formatId == CF_DIB)
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{
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BYTE* pDst = NULL;
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const BITMAPINFOHEADER* pInfoHeader = NULL;
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BITMAPFILEHEADER* pFileHeader = NULL;
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if (SrcSize < sizeof(BITMAPINFOHEADER))
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return NULL;
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pInfoHeader = (const BITMAPINFOHEADER*)data;
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if ((pInfoHeader->biBitCount < 1) || (pInfoHeader->biBitCount > 32))
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return NULL;
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DstSize = sizeof(BITMAPFILEHEADER) + SrcSize;
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pDstData = (BYTE*)malloc(DstSize);
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if (!pDstData)
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return NULL;
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pFileHeader = (BITMAPFILEHEADER*)pDstData;
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pFileHeader->bfType = 0x4D42;
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pFileHeader->bfSize = DstSize;
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pFileHeader->bfReserved1 = 0;
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pFileHeader->bfReserved2 = 0;
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pFileHeader->bfOffBits = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER);
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pDst = &pDstData[sizeof(BITMAPFILEHEADER)];
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CopyMemory(pDst, data, SrcSize);
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*pSize = DstSize;
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return pDstData;
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}
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else if (formatId == CF_DIBV5)
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{
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}
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return NULL;
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}
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/**
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* "HTML Format":
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*
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* HTML clipboard format: msdn.microsoft.com/en-us/library/windows/desktop/ms649015/
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*/
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static void* clipboard_synthesize_html_format(wClipboard* clipboard, UINT32 formatId,
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const void* pData, UINT32* pSize)
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{
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union
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{
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const void* cpv;
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const char* cpc;
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const BYTE* cpb;
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WCHAR* pv;
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} pSrcData;
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char* pDstData = NULL;
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pSrcData.cpv = NULL;
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WINPR_ASSERT(clipboard);
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WINPR_ASSERT(pSize);
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if (formatId == ClipboardGetFormatId(clipboard, "text/html"))
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{
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const INT64 SrcSize = (INT64)*pSize;
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const size_t DstSize = SrcSize + 200;
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char* body = NULL;
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char num[20] = { 0 };
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/* Create a copy, we modify the input data */
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pSrcData.pv = calloc(1, SrcSize + 1);
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if (!pSrcData.pv)
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goto fail;
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memcpy(pSrcData.pv, pData, SrcSize);
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if (SrcSize > 2)
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{
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if (SrcSize > INT_MAX)
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return NULL;
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/* Check the BOM (Byte Order Mark) */
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if ((pSrcData.cpb[0] == 0xFE) && (pSrcData.cpb[1] == 0xFF))
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ByteSwapUnicode(pSrcData.pv, (SrcSize / 2));
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/* Check if we have WCHAR, convert to UTF-8 */
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if ((pSrcData.cpb[0] == 0xFF) && (pSrcData.cpb[1] == 0xFE))
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{
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char* utfString =
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ConvertWCharNToUtf8Alloc(&pSrcData.pv[1], SrcSize / sizeof(WCHAR), NULL);
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free(pSrcData.pv);
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pSrcData.cpc = utfString;
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if (!utfString)
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goto fail;
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}
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}
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pDstData = (char*)calloc(1, DstSize);
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if (!pDstData)
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goto fail;
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sprintf_s(pDstData, DstSize,
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"Version:0.9\r\n"
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"StartHTML:0000000000\r\n"
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"EndHTML:0000000000\r\n"
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"StartFragment:0000000000\r\n"
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"EndFragment:0000000000\r\n");
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body = strstr(pSrcData.cpc, "<body");
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if (!body)
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body = strstr(pSrcData.cpc, "<BODY");
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/* StartHTML */
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sprintf_s(num, sizeof(num), "%010" PRIuz "", strnlen(pDstData, DstSize));
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CopyMemory(&pDstData[23], num, 10);
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if (!body)
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{
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if (!winpr_str_append("<HTML><BODY>", pDstData, DstSize, NULL))
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goto fail;
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}
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if (!winpr_str_append("<!--StartFragment-->", pDstData, DstSize, NULL))
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goto fail;
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/* StartFragment */
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sprintf_s(num, sizeof(num), "%010" PRIuz "", strnlen(pDstData, SrcSize + 200));
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CopyMemory(&pDstData[69], num, 10);
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if (!winpr_str_append(pSrcData.cpc, pDstData, DstSize, NULL))
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goto fail;
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/* EndFragment */
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sprintf_s(num, sizeof(num), "%010" PRIuz "", strnlen(pDstData, SrcSize + 200));
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CopyMemory(&pDstData[93], num, 10);
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if (!winpr_str_append("<!--EndFragment-->", pDstData, DstSize, NULL))
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goto fail;
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if (!body)
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{
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if (!winpr_str_append("</BODY></HTML>", pDstData, DstSize, NULL))
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goto fail;
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}
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/* EndHTML */
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sprintf_s(num, sizeof(num), "%010" PRIuz "", strnlen(pDstData, DstSize));
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CopyMemory(&pDstData[43], num, 10);
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*pSize = (UINT32)strnlen(pDstData, DstSize) + 1;
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}
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fail:
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free(pSrcData.pv);
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return pDstData;
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}
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/**
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* "text/html":
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*
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* HTML text format.
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*/
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static void* clipboard_synthesize_text_html(wClipboard* clipboard, UINT32 formatId,
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const void* data, UINT32* pSize)
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{
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long beg = 0;
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long end = 0;
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const char* str = NULL;
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char* begStr = NULL;
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char* endStr = NULL;
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long DstSize = -1;
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BYTE* pDstData = NULL;
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if (formatId == ClipboardGetFormatId(clipboard, "HTML Format"))
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{
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INT64 SrcSize = 0;
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str = (const char*)data;
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SrcSize = (INT64)*pSize;
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begStr = strstr(str, "StartHTML:");
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endStr = strstr(str, "EndHTML:");
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if (!begStr || !endStr)
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return NULL;
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errno = 0;
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beg = strtol(&begStr[10], NULL, 10);
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if (errno != 0)
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return NULL;
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end = strtol(&endStr[8], NULL, 10);
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if (beg < 0 || end < 0 || (beg > SrcSize) || (end > SrcSize) || (beg >= end) ||
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(errno != 0))
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return NULL;
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DstSize = end - beg;
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pDstData = (BYTE*)malloc((size_t)(SrcSize - beg + 1));
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if (!pDstData)
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return NULL;
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CopyMemory(pDstData, &str[beg], DstSize);
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DstSize = ConvertLineEndingToLF((char*)pDstData, DstSize);
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*pSize = (UINT32)DstSize;
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}
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return (void*)pDstData;
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}
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BOOL ClipboardInitSynthesizers(wClipboard* clipboard)
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{
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UINT32 formatId = 0;
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UINT32 altFormatId = 0;
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/**
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* CF_TEXT
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*/
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ClipboardRegisterSynthesizer(clipboard, CF_TEXT, CF_OEMTEXT, clipboard_synthesize_cf_oemtext);
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ClipboardRegisterSynthesizer(clipboard, CF_TEXT, CF_UNICODETEXT,
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clipboard_synthesize_cf_unicodetext);
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ClipboardRegisterSynthesizer(clipboard, CF_TEXT, CF_LOCALE, clipboard_synthesize_cf_locale);
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altFormatId = ClipboardRegisterFormat(clipboard, mime_text_plain);
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ClipboardRegisterSynthesizer(clipboard, CF_TEXT, altFormatId, clipboard_synthesize_utf8_string);
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/**
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* CF_OEMTEXT
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*/
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ClipboardRegisterSynthesizer(clipboard, CF_OEMTEXT, CF_TEXT, clipboard_synthesize_cf_text);
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ClipboardRegisterSynthesizer(clipboard, CF_OEMTEXT, CF_UNICODETEXT,
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clipboard_synthesize_cf_unicodetext);
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ClipboardRegisterSynthesizer(clipboard, CF_OEMTEXT, CF_LOCALE, clipboard_synthesize_cf_locale);
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altFormatId = ClipboardRegisterFormat(clipboard, mime_text_plain);
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ClipboardRegisterSynthesizer(clipboard, CF_OEMTEXT, altFormatId,
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clipboard_synthesize_utf8_string);
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/**
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* CF_UNICODETEXT
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*/
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ClipboardRegisterSynthesizer(clipboard, CF_UNICODETEXT, CF_TEXT, clipboard_synthesize_cf_text);
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ClipboardRegisterSynthesizer(clipboard, CF_UNICODETEXT, CF_OEMTEXT,
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clipboard_synthesize_cf_oemtext);
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ClipboardRegisterSynthesizer(clipboard, CF_UNICODETEXT, CF_LOCALE,
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clipboard_synthesize_cf_locale);
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altFormatId = ClipboardRegisterFormat(clipboard, mime_text_plain);
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ClipboardRegisterSynthesizer(clipboard, CF_UNICODETEXT, altFormatId,
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clipboard_synthesize_utf8_string);
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/**
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* UTF8_STRING
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*/
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formatId = ClipboardRegisterFormat(clipboard, mime_text_plain);
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if (formatId)
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{
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ClipboardRegisterSynthesizer(clipboard, formatId, CF_TEXT, clipboard_synthesize_cf_text);
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ClipboardRegisterSynthesizer(clipboard, formatId, CF_OEMTEXT,
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clipboard_synthesize_cf_oemtext);
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ClipboardRegisterSynthesizer(clipboard, formatId, CF_UNICODETEXT,
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clipboard_synthesize_cf_unicodetext);
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ClipboardRegisterSynthesizer(clipboard, formatId, CF_LOCALE,
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clipboard_synthesize_cf_locale);
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}
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/**
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* text/plain
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*/
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formatId = ClipboardRegisterFormat(clipboard, mime_text_plain);
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|
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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;
|
|
}
|