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#include "http_proxy.h"
#include "http_static.h"
#include <library/cpp/actors/core/executor_pool_basic.h>
#include <library/cpp/actors/core/log.h>
#include <library/cpp/actors/core/scheduler_basic.h>
#include <library/cpp/actors/http/http.h>
#include <library/cpp/resource/resource.h>
#include <util/folder/path.h>
#include <util/stream/file.h>
namespace NHttp {
class THttpStaticContentHandler : public NActors::TActor<THttpStaticContentHandler> {
public:
using TBase = NActors::TActor<THttpStaticContentHandler>;
const TFsPath URL;
const TFsPath FilePath;
const TFsPath ResourcePath;
const TFsPath Index;
THttpStaticContentHandler(const TString& url, const TString& filePath, const TString& resourcePath, const TString& index)
: TBase(&THttpStaticContentHandler::StateWork)
, URL(url)
, FilePath(filePath)
, ResourcePath(resourcePath)
, Index(index)
{}
static TInstant GetCompileTime() {
tm compileTime;
strptime(__DATE__ " " __TIME__, "%B %d %Y %H:%M:%S", &compileTime);
return TInstant::Seconds(mktime(&compileTime));
}
void Handle(NHttp::TEvHttpProxy::TEvHttpIncomingRequest::TPtr event, const NActors::TActorContext& ctx) {
THttpOutgoingResponsePtr response;
if (event->Get()->Request->Method != "GET") {
response = event->Get()->Request->CreateResponseBadRequest("Wrong request");
ctx.Send(event->Sender, new NHttp::TEvHttpProxy::TEvHttpOutgoingResponse(response));
return;
}
TFsPath url(event->Get()->Request->URL.Before('?'));
if (!url.IsAbsolute()) {
response = event->Get()->Request->CreateResponseBadRequest("Completely wrong URL");
ctx.Send(event->Sender, new NHttp::TEvHttpProxy::TEvHttpOutgoingResponse(response));
return;
}
if (url.GetPath().EndsWith('/') && Index.IsDefined()) {
url /= Index;
}
url = url.RelativeTo(URL);
try {
// TODO: caching?
TString contentType = mimetypeByExt(url.GetExtension().c_str());
TString data;
TFileStat filestat;
TFsPath resourcename(ResourcePath / url);
if (NResource::FindExact(resourcename.GetPath(), &data)) {
static TInstant compileTime(GetCompileTime());
filestat.MTime = compileTime.Seconds();
} else {
TFsPath filename(FilePath / url);
if (!filename.IsSubpathOf(FilePath) && filename != FilePath) {
response = event->Get()->Request->CreateResponseBadRequest("Wrong URL");
ctx.Send(event->Sender, new NHttp::TEvHttpProxy::TEvHttpOutgoingResponse(response));
return;
}
if (filename.Stat(filestat) && filestat.IsFile()) {
data = TUnbufferedFileInput(filename).ReadAll();
}
}
if (!filestat.IsNull()) {
response = event->Get()->Request->CreateResponseOK(data, contentType, TInstant::Seconds(filestat.MTime));
} else {
response = event->Get()->Request->CreateResponseNotFound("File not found");
}
}
catch (const yexception&) {
response = event->Get()->Request->CreateResponseServiceUnavailable("Not available");
}
ctx.Send(event->Sender, new NHttp::TEvHttpProxy::TEvHttpOutgoingResponse(response));
}
STFUNC(StateWork) {
switch (ev->GetTypeRewrite()) {
HFunc(NHttp::TEvHttpProxy::TEvHttpIncomingRequest, Handle);
}
}
};
NActors::IActor* CreateHttpStaticContentHandler(const TString& url, const TString& filePath, const TString& resourcePath, const TString& index) {
return new THttpStaticContentHandler(url, filePath, resourcePath, index);
}
}
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