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#include "httpreqdata.h"
#include <util/stream/mem.h>
TBaseServerRequestData::TBaseServerRequestData(SOCKET s)
: Addr(nullptr)
, Host()
, Port()
, Path(nullptr)
, Search(nullptr)
, SearchLength(0)
, Socket(s)
, BeginTime(MicroSeconds())
{
}
TBaseServerRequestData::TBaseServerRequestData(const char* qs, SOCKET s)
: Addr(nullptr)
, Host()
, Port()
, Path(nullptr)
, Search((char*)qs)
, SearchLength(qs ? strlen(qs) : 0)
, OrigSearch(Search, SearchLength)
, Socket(s)
, BeginTime(MicroSeconds())
{
}
void TBaseServerRequestData::AppendQueryString(const char* str, size_t length) {
if (Y_UNLIKELY(Search)) {
Y_ASSERT(strlen(Search) == SearchLength);
ModifiedQueryString.Reserve(SearchLength + length + 2);
ModifiedQueryString.Assign(Search, SearchLength);
if (SearchLength > 0 && Search[SearchLength - 1] != '&' &&
length > 0 && str[0] != '&') {
ModifiedQueryString.Append('&');
}
ModifiedQueryString.Append(str, length);
} else {
ModifiedQueryString.Reserve(length + 1);
ModifiedQueryString.Assign(str, length);
}
ModifiedQueryString.Append('\0');
Search = ModifiedQueryString.data();
SearchLength = ModifiedQueryString.size() - 1; // ignore terminator
}
void TBaseServerRequestData::SetRemoteAddr(TStringBuf addr) {
TMemoryOutput out(AddrData, Y_ARRAY_SIZE(AddrData) - 1);
out.Write(addr.substr(0, Y_ARRAY_SIZE(AddrData) - 1));
*out.Buf() = '\0';
Addr = AddrData;
}
const char* TBaseServerRequestData::RemoteAddr() const {
if (!Addr) {
*AddrData = 0;
GetRemoteAddr(Socket, AddrData, sizeof(AddrData));
Addr = AddrData;
}
return Addr;
}
const char* TBaseServerRequestData::HeaderIn(TStringBuf key) const {
auto it = HeadersIn_.find(key);
if (it == HeadersIn_.end()) {
return nullptr;
}
return it->second.data();
}
TString TBaseServerRequestData::HeaderByIndex(size_t n) const noexcept {
if (n >= HeadersCount()) {
return nullptr;
}
THttpHeadersContainer::const_iterator i = HeadersIn_.begin();
while (n) {
++i;
--n;
}
return TString(i->first) + TStringBuf(": ") + i->second;
}
const char* TBaseServerRequestData::Environment(const char* key) const {
if (stricmp(key, "REMOTE_ADDR") == 0) {
const char* ip = HeaderIn("X-Real-IP");
if (ip)
return ip;
return RemoteAddr();
} else if (stricmp(key, "QUERY_STRING") == 0) {
return QueryString();
} else if (stricmp(key, "SERVER_NAME") == 0) {
return ServerName().data();
} else if (stricmp(key, "SERVER_PORT") == 0) {
return ServerPort().data();
} else if (stricmp(key, "SCRIPT_NAME") == 0) {
return ScriptName();
}
return nullptr;
}
void TBaseServerRequestData::Clear() {
HeadersIn_.clear();
Addr = Path = Search = nullptr;
OrigSearch = {};
SearchLength = 0;
Host.clear();
Port.clear();
CurPage.remove();
ParseBuf.Clear();
BeginTime = MicroSeconds();
}
const char* TBaseServerRequestData::GetCurPage() const {
if (!CurPage && Host) {
CurPage = "http://";
CurPage += Host;
if (Port) {
CurPage += ':';
CurPage += Port;
}
CurPage += Path;
if (Search) {
CurPage += '?';
CurPage += Search;
}
}
return CurPage.data();
}
bool TBaseServerRequestData::Parse(const char* origReq) {
size_t origReqLength = strlen(origReq);
ParseBuf.Assign(origReq, origReqLength + 1);
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;
Path = req;
// calculate Search length without additional strlen-ing
Search = strchr(Path, '?');
if (Search) {
*Search++ = 0;
ptrdiff_t delta = fragment - Search;
// indeed, second case is a parse error
SearchLength = (delta >= 0) ? delta : (urlEnd - Search);
Y_ASSERT(strlen(Search) == SearchLength);
} else {
SearchLength = 0;
}
OrigSearch = {Search, SearchLength};
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(const TString& path) {
PathStorage = TBuffer(path.data(), path.size() + 1);
Path = PathStorage.Data();
}
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