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* HTTPProxy.cpp : add SanitizeHTTPRequest()

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This commit is contained in:
hagen 2016-07-01 00:00:00 +00:00
parent 9fd78b1eb1
commit 642b01bf0d
1 changed files with 26 additions and 0 deletions
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26
HTTPProxy.cpp
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@ -52,6 +52,7 @@ namespace proxy {
void RedirectToJumpService(std::string & host);
bool ValidateHTTPRequest();
bool ExtractAddressHelper(i2p::http::URL & url, std::string & b64);
void SanitizeHTTPRequest(i2p::http::HTTPReq & req);
bool CreateHTTPRequest(uint8_t *http_buff, std::size_t len);
void SentHTTPFailed(const boost::system::error_code & ecode);
void HandleStreamRequestComplete (std::shared_ptr<i2p::stream::Stream> stream);
@ -171,6 +172,31 @@ namespace proxy {
return true;
}
void HTTPReqHandler::SanitizeHTTPRequest(i2p::http::HTTPReq & req)
{
/* drop common headers */
req.del_header("Referer");
req.del_header("Via");
req.del_header("Forwarded");
/* drop proxy-disclosing headers */
std::vector<std::string> toErase;
for (auto it : req.headers) {
if (it.first.compare(0, 12, "X-Forwarded-") == 0) {
toErase.push_back(it.first);
} else if (it.first.compare(0, 6, "Proxy-") == 0) {
toErase.push_back(it.first);
} else {
/* allow */
}
}
for (auto header : toErase) {
req.headers.erase(header);
}
/* replace headers */
req.add_header("Connection", "close", true); /* keep-alive conns not supported yet */
req.add_header("User-Agent", "MYOB/6.66 (AN/ON)", true); /* privacy */
}
bool HTTPReqHandler::CreateHTTPRequest(uint8_t *http_buff, std::size_t len)
{
std::string b64;