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#include "httpreqdata.h"
#include <library/cpp/case_insensitive_string/case_insensitive_string.h>
#include <util/stream/mem.h>
TBaseServerRequestData::TBaseServerRequestData(SOCKET s)
: Socket_(s)
, BeginTime_(MicroSeconds())
{
}
TBaseServerRequestData::TBaseServerRequestData(TStringBuf qs, SOCKET s)
: Query_(qs)
, OrigQuery_(Query_)
, Socket_(s)
, BeginTime_(MicroSeconds())
{
}
void TBaseServerRequestData::AppendQueryString(TStringBuf str) {
if (Y_UNLIKELY(!Query_.empty())) {
TStringBuf separator = !Query_.EndsWith('&') && !str.StartsWith('&') ? "&"sv : ""sv;
ModifiedQueryString_ = TString::Join(Query_, separator, str);
} else {
ModifiedQueryString_ = str;
}
Query_ = ModifiedQueryString_;
}
void TBaseServerRequestData::SetRemoteAddr(TStringBuf addr) {
Addr_.ConstructInPlace(addr.substr(0, INET6_ADDRSTRLEN - 1));
}
TStringBuf TBaseServerRequestData::RemoteAddr() const {
if (!Addr_) {
auto& addr = Addr_.ConstructInPlace();
addr.ReserveAndResize(INET6_ADDRSTRLEN);
if (GetRemoteAddr(Socket_, addr.begin(), addr.size())) {
if (auto pos = addr.find('\0'); pos != TString::npos) {
addr.resize(pos);
}
} else {
addr.clear();
}
}
return *Addr_;
}
const TString* TBaseServerRequestData::HeaderIn(TStringBuf key) const {
return HeadersIn_.FindPtr(key);
}
TStringBuf TBaseServerRequestData::HeaderInOrEmpty(TStringBuf key) const {
const auto* ptr = HeaderIn(key);
return ptr ? TStringBuf{*ptr} : TStringBuf{};
}
TString TBaseServerRequestData::HeaderByIndex(size_t n) const noexcept {
if (n >= HeadersIn_.size()) {
return {};
}
const auto& [key, value] = *std::next(HeadersIn_.begin(), n);
return TString::Join(key, ": ", value);
}
TStringBuf TBaseServerRequestData::Environment(TStringBuf key) const {
TCaseInsensitiveStringBuf ciKey(key.data(), key.size());
if (ciKey == "REMOTE_ADDR") {
const auto ip = HeaderIn("X-Real-IP");
return ip ? *ip : RemoteAddr();
} else if (ciKey == "QUERY_STRING") {
return Query();
} else if (ciKey == "SERVER_NAME") {
return ServerName();
} else if (ciKey == "SERVER_PORT") {
return ServerPort();
} else if (ciKey == "SCRIPT_NAME") {
return ScriptName();
}
return {};
}
void TBaseServerRequestData::Clear() {
HeadersIn_.clear();
Addr_ = Nothing();
Path_.clear();
Query_ = {};
OrigQuery_ = {};
Host_.clear();
Port_.clear();
CurPage_.remove();
ParseBuf_.clear();
BeginTime_ = MicroSeconds();
}
const TString& TBaseServerRequestData::GetCurPage() const {
if (!CurPage_ && Host_) {
CurPage_ = "http://";
CurPage_ += Host_;
if (Port_) {
CurPage_ += ':';
CurPage_ += Port_;
}
CurPage_ += Path_;
if (Query_) {
CurPage_ += '?';
CurPage_ += Query_;
}
}
return CurPage_;
}
bool TBaseServerRequestData::Parse(TStringBuf origReqBuf) {
ParseBuf_.reserve(origReqBuf.size() + 1);
ParseBuf_.assign(origReqBuf.begin(), origReqBuf.end());
ParseBuf_.push_back('\0');
char* req = ParseBuf_.data();
while (*req == ' ' || *req == '\t')
req++;
if (*req != '/')
return false; // we are not a proxy
while (req[1] == '/') // remove redundant slashes
req++;
// detect url end (can contain some garbage after whitespace, e.g. 'HTTP 1.1')
char* urlEnd = req;
while (*urlEnd && *urlEnd != ' ' && *urlEnd != '\t')
urlEnd++;
if (*urlEnd)
*urlEnd = 0;
// cut fragment if exists
char* fragment = strchr(req, '#');
if (fragment)
*fragment = 0; // ignore fragment
else
fragment = urlEnd;
char* path = req;
// calculate Search length without additional strlen-ing
char* query = strchr(path, '?');
if (query) {
*query++ = 0;
ptrdiff_t delta = fragment - query;
// indeed, second case is a parse error
Query_ = {query, static_cast<size_t>(delta >= 0 ? delta : (urlEnd - query))};
} else {
Query_ = {};
}
Path_ = path;
OrigQuery_ = Query_;
return true;
}
void TBaseServerRequestData::AddHeader(const TString& name, const TString& value) {
HeadersIn_[name] = value;
if (stricmp(name.data(), "Host") == 0) {
size_t hostLen = strcspn(value.data(), ":");
if (value[hostLen] == ':')
Port_ = value.substr(hostLen + 1);
Host_ = value.substr(0, hostLen);
}
}
void TBaseServerRequestData::SetPath(TString path) {
Path_ = std::move(path);
}
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