105 lines
3.0 KiB
C++
105 lines
3.0 KiB
C++
/*
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* Deskflow -- mouse and keyboard sharing utility
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* SPDX-FileCopyrightText: (C) 2012 - 2016 Symless Ltd.
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* SPDX-FileCopyrightText: (C) 2004 Chris Schoeneman
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* SPDX-License-Identifier: GPL-2.0-only WITH LicenseRef-OpenSSL-Exception
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*/
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#include "platform/MSWindowsClipboardHTMLConverter.h"
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#include <base/String.h>
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//
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// MSWindowsClipboardHTMLConverter
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//
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MSWindowsClipboardHTMLConverter::MSWindowsClipboardHTMLConverter()
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{
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m_format = RegisterClipboardFormat("HTML Format");
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}
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MSWindowsClipboardHTMLConverter::~MSWindowsClipboardHTMLConverter()
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{
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// do nothing
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}
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IClipboard::EFormat MSWindowsClipboardHTMLConverter::getFormat() const
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{
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return IClipboard::kHTML;
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}
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UINT MSWindowsClipboardHTMLConverter::getWin32Format() const
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{
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return m_format;
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}
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std::string MSWindowsClipboardHTMLConverter::doFromIClipboard(const std::string &data) const
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{
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// prepare to CF_HTML format prefix and suffix
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std::string prefix(
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"Version:0.9\r\nStartHTML:0000000105\r\n"
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"EndHTML:ZZZZZZZZZZ\r\n"
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"StartFragment:XXXXXXXXXX\r\nEndFragment:YYYYYYYYYY\r\n"
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"<!DOCTYPE><HTML><BODY><!--StartFragment-->"
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);
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std::string suffix("<!--EndFragment--></BODY></HTML>\r\n");
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// Get byte offsets for header
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uint32_t StartFragment = (uint32_t)prefix.size();
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uint32_t EndFragment = StartFragment + (uint32_t)data.size();
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// StartHTML is constant by the design of the prefix
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uint32_t EndHTML = EndFragment + (uint32_t)suffix.size();
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prefix.replace(prefix.find("XXXXXXXXXX"), 10, deskflow::string::sprintf("%010u", StartFragment));
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prefix.replace(prefix.find("YYYYYYYYYY"), 10, deskflow::string::sprintf("%010u", EndFragment));
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prefix.replace(prefix.find("ZZZZZZZZZZ"), 10, deskflow::string::sprintf("%010u", EndHTML));
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// concatenate
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prefix += data;
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prefix += suffix;
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return prefix;
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}
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std::string MSWindowsClipboardHTMLConverter::doToIClipboard(const std::string &data) const
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{
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// get fragment start/end args
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std::string startArg = findArg(data, "StartFragment");
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std::string endArg = findArg(data, "EndFragment");
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if (startArg.empty() || endArg.empty()) {
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return std::string();
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}
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// convert args to integers
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int32_t start = (int32_t)atoi(startArg.c_str());
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int32_t end = (int32_t)atoi(endArg.c_str());
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if (start <= 0 || end <= 0 || start >= end) {
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return std::string();
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}
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// extract the fragment
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return data.substr(start, end - start);
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}
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std::string MSWindowsClipboardHTMLConverter::findArg(const std::string &data, const std::string &name) const
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{
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std::string::size_type i = data.find(name);
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if (i == std::string::npos) {
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return std::string();
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}
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i = data.find_first_of(":\r\n", i);
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if (i == std::string::npos || data[i] != ':') {
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return std::string();
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}
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i = data.find_first_of("0123456789\r\n", i + 1);
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if (i == std::string::npos || data[i] == '\r' || data[i] == '\n') {
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return std::string();
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}
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std::string::size_type j = data.find_first_not_of("0123456789", i);
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if (j == std::string::npos) {
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j = data.size();
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}
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return data.substr(i, j - i);
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}
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