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Web UI: Make multipart/form-data parsing more robust

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This commit is contained in:
Christophe Dumez 2011-09-30 20:46:04 +03:00
parent f13fd37819
commit dad1568657
1 changed files with 31 additions and 5 deletions
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36
src/webui/httprequestparser.cpp
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@ -87,7 +87,7 @@ void HttpRequestParser::write(const QByteArray& ba) {
// Parse message content
if (m_header.hasContentLength()) {
qDebug() << Q_FUNC_INFO << "header: " << ba.left(end_of_header);
qDebug() << Q_FUNC_INFO << "\n\n" << "header: " << ba.left(end_of_header) << "\n\n";
m_data = ba.mid(end_of_header + 4, m_header.contentLength()); // +4 to skip "\r\n\r\n"
// Parse POST data
@ -101,10 +101,36 @@ void HttpRequestParser::write(const QByteArray& ba) {
}
} else {
// Parse form data (torrent file)
if(m_header.contentType() == "multipart/form-data") {
qDebug() << "form-part header: " << m_data.left(m_data.indexOf("\r\n\r\n"));
m_torrentContent = m_data.mid(m_data.indexOf("\r\n\r\n") + 4);
qDebug() << Q_FUNC_INFO << "m_torrentContent.size(): " << m_torrentContent.size();
/**
m_data has the following format (if boundary is "cH2ae0GI3KM7GI3Ij5ae0ei4Ij5Ij5")
--cH2ae0GI3KM7GI3Ij5ae0ei4Ij5Ij5
Content-Disposition: form-data; name=\"Filename\"
PB020344.torrent
--cH2ae0GI3KM7GI3Ij5ae0ei4Ij5Ij5
Content-Disposition: form-data; name=\"torrentfile"; filename=\"PB020344.torrent\"
Content-Type: application/x-bittorrent
BINARY DATA IS HERE
--cH2ae0GI3KM7GI3Ij5ae0ei4Ij5Ij5
Content-Disposition: form-data; name=\"Upload\"
Submit Query
--cH2ae0GI3KM7GI3Ij5ae0ei4Ij5Ij5--
**/
if (m_header.contentType().startsWith("multipart/form-data")) {
int filename_index = m_data.indexOf("filename=");
if (filename_index >= 0) {
QByteArray boundary = m_data.left(m_data.indexOf("\r\n"));
qDebug() << "Boundary is " << boundary << "\n\n";
qDebug() << "Before binary data: " << m_data.left(m_data.indexOf("\r\n\r\n", filename_index+9)) << "\n\n";
m_torrentContent = m_data.mid(m_data.indexOf("\r\n\r\n", filename_index+9) + 4);
m_torrentContent = m_torrentContent.left(m_torrentContent.indexOf("\r\n"+boundary));
qDebug() << Q_FUNC_INFO << "m_torrentContent.size(): " << m_torrentContent.size()<< "\n\n";
} else {
m_error = true;
}
}
}
}