/* * Deskflow -- mouse and keyboard sharing utility * SPDX-FileCopyrightText: (C) 2012 - 2016 Symless Ltd. * SPDX-FileCopyrightText: (C) 2004 Chris Schoeneman * SPDX-License-Identifier: GPL-2.0-only WITH LicenseRef-OpenSSL-Exception */ #include "platform/MSWindowsClipboardHTMLConverter.h" #include // // MSWindowsClipboardHTMLConverter // MSWindowsClipboardHTMLConverter::MSWindowsClipboardHTMLConverter() { m_format = RegisterClipboardFormat("HTML Format"); } IClipboard::Format MSWindowsClipboardHTMLConverter::getFormat() const { return IClipboard::Format::HTML; } UINT MSWindowsClipboardHTMLConverter::getWin32Format() const { return m_format; } std::string MSWindowsClipboardHTMLConverter::doFromIClipboard(const std::string &data) const { // prepare to CF_HTML format prefix and suffix std::string prefix( "Version:0.9\r\nStartHTML:0000000105\r\n" "EndHTML:ZZZZZZZZZZ\r\n" "StartFragment:XXXXXXXXXX\r\nEndFragment:YYYYYYYYYY\r\n" "" ); std::string suffix("\r\n"); // Get byte offsets for header uint32_t StartFragment = (uint32_t)prefix.size(); uint32_t EndFragment = StartFragment + (uint32_t)data.size(); // StartHTML is constant by the design of the prefix uint32_t EndHTML = EndFragment + (uint32_t)suffix.size(); prefix.replace(prefix.find("XXXXXXXXXX"), 10, deskflow::string::sprintf("%010u", StartFragment)); prefix.replace(prefix.find("YYYYYYYYYY"), 10, deskflow::string::sprintf("%010u", EndFragment)); prefix.replace(prefix.find("ZZZZZZZZZZ"), 10, deskflow::string::sprintf("%010u", EndHTML)); // concatenate prefix += data; prefix += suffix; return prefix; } std::string MSWindowsClipboardHTMLConverter::doToIClipboard(const std::string &data) const { // get fragment start/end args std::string startArg = findArg(data, "StartFragment"); std::string endArg = findArg(data, "EndFragment"); if (startArg.empty() || endArg.empty()) { return std::string(); } // convert args to integers int32_t start = (int32_t)atoi(startArg.c_str()); int32_t end = (int32_t)atoi(endArg.c_str()); if (start <= 0 || end <= 0 || start >= end) { return std::string(); } // extract the fragment return data.substr(start, end - start); } std::string MSWindowsClipboardHTMLConverter::findArg(const std::string &data, const std::string &name) const { std::string::size_type i = data.find(name); if (i == std::string::npos) { return std::string(); } i = data.find_first_of(":\r\n", i); if (i == std::string::npos || data[i] != ':') { return std::string(); } i = data.find_first_of("0123456789\r\n", i + 1); if (i == std::string::npos || data[i] == '\r' || data[i] == '\n') { return std::string(); } std::string::size_type j = data.find_first_not_of("0123456789", i); if (j == std::string::npos) { j = data.size(); } return data.substr(i, j - i); }