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/*
Copyright (C) 2023-2025 Selwin van Dijk
This file is part of signalbackup-tools.
signalbackup-tools is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
signalbackup-tools is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with signalbackup-tools. If not, see <https://www.gnu.org/licenses/>.
*/
#include "signalbackup.ih"
#include <cerrno>
bool SignalBackup::HTMLwriteAttachment(std::string const &directory, std::string const &threaddir,
long long int rowid, long long int uniqueid, //std::string const &ext,
std::string const &attachment_filename, long long int timestamp,
bool overwrite, bool append) const
{
auto attachmentfound = d_attachments.find({rowid, uniqueid});
if (attachmentfound == d_attachments.end()) [[unlikely]]
return false;
// directory + threaddir is guaranteed to exist at this point, check/create 'media'
if (!bepaald::fileOrDirExists(directory + "/" + threaddir + "/media"))
{
if (!bepaald::createDir(directory + "/" + threaddir + "/media"))
{
Logger::error("Failed to create directory `", directory, "/", threaddir, "/media");
return false;
}
}
else if (!bepaald::isDir(directory + "/" + threaddir + "/media"))
{
Logger::error("Failed to create directory `", directory, "/", threaddir, "/media");
return false;
}
// check actual attachmentfile file
std::string attachment_filename_full = directory + "/" + threaddir + "/media/" +
attachment_filename;
// "/media/Attachment_" + bepaald::toString(rowid) + "_" + bepaald::toString(uniqueid) + "." + ext;
WIN_CHECK_PATH_LENGTH(attachment_filename_full);
if (bepaald::fileOrDirExists(attachment_filename_full))
{
if (append) // file already exists, but we were asked to just use the existing file, so we're done
return true;
if (!overwrite) // file already exists, but we were no asked to overwrite -> error!
{
//std::cout << attachment_filename << std::endl;
Logger::error("Attachment file exists. Not overwriting");
return false;
}
}
AttachmentFrame *a = attachmentfound->second.get();
// write actual attachment:
std::ofstream attachmentstream(WIN_LONGPATH(attachment_filename_full), std::ios_base::binary);
if (!attachmentstream.is_open())
{
Logger::error("Failed to open file for writing: '", attachment_filename_full, "'",
" (errno: ", std::strerror(errno), ")"); // note: errno is not required to be set by std
// temporary !!
{
std::error_code error;
std::filesystem::space_info const si = std::filesystem::space(directory, error);
if (!error)
{
Logger::message("Space available: ", static_cast<std::intmax_t>(si.available),
"\nAttachment size: ", a->attachmentSize());
}
}
return false;
}
else
{
if (!attachmentstream.write(reinterpret_cast<char *>(a->attachmentData()), a->attachmentSize()))
return false;
// write was succesfull. drop attachment data
a->clearData();
attachmentstream.close(); // need to close, or the auto-close will change files mtime again.
if (timestamp >= 0)
if (!setFileTimeStamp(attachment_filename_full, timestamp)) [[unlikely]]
Logger::warning("Failed to set timestamp for attachment '", attachment_filename_full, "'");
}
return true;
}
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