Files
UnrealEngineUWP/Engine/Source/Developer/DerivedDataCache/Private/Http/HttpRequest.cpp
Devin Doucette 6339ccb310 DDC: Added detail to the User-Agent HTTP header
User-Agent: UnrealEngine/X.Y.Z-<CL> (<Platform>; <Config> <TargetType>; <BranchName>) <AppName> (<ProjectName>)

#rb Zousar.Shaker
#rnx
#preflight 62ba162fc2022443bf17d0d4

[CL 20839976 by Devin Doucette in ue5-main branch]
2022-06-27 17:17:55 -04:00

852 lines
27 KiB
C++

// Copyright Epic Games, Inc. All Rights Reserved.
#include "HttpClient.h"
#include "DerivedDataLegacyCacheStore.h"
#include "DerivedDataRequest.h"
#include "DerivedDataRequestOwner.h"
#include "HAL/IConsoleManager.h"
#include "HAL/PlatformProperties.h"
#include "Logging/LogMacros.h"
#include "Misc/App.h"
#include "Misc/AsciiSet.h"
#include "Misc/EngineVersion.h"
#include "Serialization/CompactBinary.h"
#include "Serialization/JsonReader.h"
#include "Serialization/JsonSerializer.h"
#include "String/Find.h"
#if WITH_SSL
#include "Ssl.h"
#include <openssl/ssl.h>
#endif
#if !defined(CURL_NO_OLDIES)
#define CURL_NO_OLDIES
#endif
#if PLATFORM_MICROSOFT
#include "Microsoft/AllowMicrosoftPlatformTypes.h"
#endif
#if defined(PLATFORM_CURL_INCLUDE)
#include PLATFORM_CURL_INCLUDE
#else
#include "curl/curl.h"
#endif // defined(PLATFORM_CURL_INCLUDE)
#if PLATFORM_MICROSOFT
#include "Microsoft/HideMicrosoftPlatformTypes.h"
#endif
namespace UE
{
static bool bHttpEnableAsync = true;
static FAutoConsoleVariableRef CVarHttpEnableAsync(
TEXT("DDC.Http.EnableAsync"),
bHttpEnableAsync,
TEXT("If true, asynchronous operations are permitted, otherwise all operations are forced to be synchronous."),
ECVF_Default);
namespace Http::Private
{
static constexpr bool RequestDebugEnabled = false;
static constexpr bool RequestTimeoutEnabled = true;
static constexpr long RequestTimeoutSeconds = 30;
static constexpr size_t RequestMaxBufferReserve = 100 * 1024 * 1024; // 100 MiB
struct FCurlStringListDeleter
{
void operator()(curl_slist* List) const
{
if (List)
{
curl_slist_free_all(List);
}
}
};
struct FAsyncRequestData final : public DerivedData::FRequestBase
{
DerivedData::IRequestOwner* Owner = nullptr;
FHttpRequestPool* Pool = nullptr;
FCurlStringList CurlHeaders;
FString Uri;
FHttpRequest::ERequestVerb Verb;
TArray<long, TInlineAllocator<4>> ExpectedErrorCodes;
FHttpRequest::FOnHttpRequestComplete OnComplete;
FLazyEvent Event {EEventMode::ManualReset};
void Reset()
{
CurlHeaders.Reset();
Uri.Empty();
ExpectedErrorCodes.Empty();
}
void SetPriority(DerivedData::EPriority Priority) final {}
void Cancel() final
{
TRACE_CPUPROFILER_EVENT_SCOPE(HttpDDC_Cancel);
Event.Wait();
}
void Wait() final
{
TRACE_CPUPROFILER_EVENT_SCOPE(HttpDDC_Wait);
Event.Wait();
}
};
struct FHttpRequestStatics
{
#if WITH_SSL
static int SslCertVerify(int PreverifyOk, X509_STORE_CTX* Context)
{
if (PreverifyOk == 1)
{
SSL* Handle = static_cast<SSL*>(X509_STORE_CTX_get_ex_data(Context, SSL_get_ex_data_X509_STORE_CTX_idx()));
check(Handle);
SSL_CTX* SslContext = SSL_get_SSL_CTX(Handle);
check(SslContext);
FHttpRequest* Request = static_cast<FHttpRequest*>(SSL_CTX_get_app_data(SslContext));
check(Request);
const FString& Domain = Request->GetDomain();
if (!FSslModule::Get().GetCertificateManager().VerifySslCertificates(Context, Domain))
{
PreverifyOk = 0;
}
}
return PreverifyOk;
}
static FHttpRequest::FResultCode StaticSSLCTXFn(CURL* Handle, void* sslctx, void* parm)
{
SSL_CTX* Context = static_cast<SSL_CTX*>(sslctx);
const ISslCertificateManager& CertificateManager = FSslModule::Get().GetCertificateManager();
CertificateManager.AddCertificatesToSslContext(Context);
SSL_CTX_set_verify(Context, SSL_CTX_get_verify_mode(Context), SslCertVerify);
SSL_CTX_set_app_data(Context, parm);
/* all set to go */
return CURLE_OK;
}
#endif //#if WITH_SSL
static size_t StaticDebugCallback(CURL* Handle, curl_infotype DebugInfoType, char* DebugInfo, size_t DebugInfoSize, void* UserData)
{
FHttpRequest* Request = static_cast<FHttpRequest*>(UserData);
switch (DebugInfoType)
{
case CURLINFO_TEXT:
{
// Truncate at 1023 characters. This is just an arbitrary number based on a buffer size seen in
// the libcurl code.
DebugInfoSize = FMath::Min(DebugInfoSize, (size_t)1023);
// Calculate the actual length of the string due to incorrect use of snprintf() in lib/vtls/openssl.c.
char* FoundNulPtr = (char*)memchr(DebugInfo, 0, DebugInfoSize);
int CalculatedSize = FoundNulPtr != nullptr ? FoundNulPtr - DebugInfo : DebugInfoSize;
FString DebugText(CalculatedSize, static_cast<const ANSICHAR*>(DebugInfo));
DebugText.ReplaceInline(TEXT("\n"), TEXT(""), ESearchCase::CaseSensitive);
DebugText.ReplaceInline(TEXT("\r"), TEXT(""), ESearchCase::CaseSensitive);
UE_LOG(LogDerivedDataCache, VeryVerbose, TEXT("%s: %p: '%s'"), *Request->GetName(), Request, *DebugText);
break;
}
case CURLINFO_HEADER_IN:
UE_LOG(LogDerivedDataCache, VeryVerbose, TEXT("%s: %p: Received header (%d bytes)"), *Request->GetName(), Request, DebugInfoSize);
break;
case CURLINFO_DATA_IN:
UE_LOG(LogDerivedDataCache, VeryVerbose, TEXT("%s: %p: Received data (%d bytes)"), *Request->GetName(), Request, DebugInfoSize);
break;
case CURLINFO_DATA_OUT:
UE_LOG(LogDerivedDataCache, VeryVerbose, TEXT("%s: %p: Sent data (%d bytes)"), *Request->GetName(), Request, DebugInfoSize);
break;
case CURLINFO_SSL_DATA_IN:
UE_LOG(LogDerivedDataCache, VeryVerbose, TEXT("%s: %p: Received SSL data (%d bytes)"), *Request->GetName(), Request, DebugInfoSize);
break;
case CURLINFO_SSL_DATA_OUT:
UE_LOG(LogDerivedDataCache, VeryVerbose, TEXT("%s: %p: Sent SSL data (%d bytes)"), *Request->GetName(), Request, DebugInfoSize);
break;
}
return 0;
}
static size_t StaticReadFn(void* Ptr, size_t SizeInBlocks, size_t BlockSizeInBytes, void* UserData)
{
FHttpRequest* Request = static_cast<FHttpRequest*>(UserData);
const size_t Offset = Request->BytesSent;
const size_t ReadSize = FMath::Min((size_t)Request->ReadCompositeBuffer.GetSize() - Offset, SizeInBlocks * BlockSizeInBytes);
Request->ReadCompositeBuffer.CopyTo(MakeMemoryView(Ptr, ReadSize), Request->BytesSent);
Request->BytesSent += ReadSize;
return ReadSize;
}
static size_t StaticWriteHeaderFn(void* Ptr, size_t SizeInBlocks, size_t BlockSizeInBytes, void* UserData)
{
FHttpRequest* Request = static_cast<FHttpRequest*>(UserData);
const size_t WriteSize = SizeInBlocks * BlockSizeInBytes;
TArray64<uint8>* WriteHeaderBufferPtr = Request->WriteHeaderBufferPtr;
if (WriteHeaderBufferPtr && WriteSize > 0)
{
const size_t CurrentBufferLength = WriteHeaderBufferPtr->Num();
if (CurrentBufferLength > 0)
{
// Remove the previous zero termination
(*WriteHeaderBufferPtr)[CurrentBufferLength-1] = ' ';
}
// Write the header
WriteHeaderBufferPtr->Append((const uint8*)Ptr, WriteSize + 1);
(*WriteHeaderBufferPtr)[WriteHeaderBufferPtr->Num()-1] = 0; // Zero terminate string
return WriteSize;
}
return 0;
}
static size_t StaticWriteBodyFn(void* Ptr, size_t SizeInBlocks, size_t BlockSizeInBytes, void* UserData)
{
FHttpRequest* Request = static_cast<FHttpRequest*>(UserData);
const size_t WriteSize = SizeInBlocks * BlockSizeInBytes;
TArray64<uint8>* WriteDataBufferPtr = Request->WriteDataBufferPtr;
if (WriteDataBufferPtr && WriteSize > 0)
{
// If this is the first part of the body being received, try to reserve
// memory if content length is defined in the header.
if (Request->BytesReceived == 0 && Request->WriteHeaderBufferPtr)
{
static const ANSICHAR* ContentLengthHeaderStr = "Content-Length: ";
const ANSICHAR* Header = (const ANSICHAR*)Request->WriteHeaderBufferPtr->GetData();
if (const ANSICHAR* ContentLengthHeader = FCStringAnsi::Strstr(Header, ContentLengthHeaderStr))
{
size_t ContentLength = (size_t)FCStringAnsi::Atoi64(ContentLengthHeader + strlen(ContentLengthHeaderStr));
if (ContentLength > 0u && ContentLength < Http::Private::RequestMaxBufferReserve)
{
WriteDataBufferPtr->Reserve(ContentLength);
}
}
}
// Write to the target buffer
WriteDataBufferPtr->Append((const uint8*)Ptr, WriteSize);
Request->BytesReceived += WriteSize;
return WriteSize;
}
return 0;
}
static size_t StaticSeekFn(void* UserData, curl_off_t Offset, int Origin)
{
FHttpRequest* Request = static_cast<FHttpRequest*>(UserData);
size_t NewPosition = 0;
switch (Origin)
{
case SEEK_SET: NewPosition = Offset; break;
case SEEK_CUR: NewPosition = Request->BytesSent + Offset; break;
case SEEK_END: NewPosition = Request->ReadCompositeBuffer.GetSize() + Offset; break;
}
// Make sure we don't seek outside of the buffer
if (NewPosition < 0 || NewPosition >= Request->ReadCompositeBuffer.GetSize())
{
return CURL_SEEKFUNC_FAIL;
}
// Update the used offset
Request->BytesSent = NewPosition;
return CURL_SEEKFUNC_OK;
}
};
} // Http::Private
FHttpRequest::FHttpRequest(
const FStringView InDomain,
const FStringView InEffectiveDomain,
const FHttpAccessToken* const InAuthorizationToken,
FHttpSharedData* const InSharedData,
const bool bInLogErrors)
: SharedData(InSharedData)
, AsyncData(nullptr)
, bLogErrors(bInLogErrors)
, Domain(InDomain)
, EffectiveDomain(InEffectiveDomain)
, AuthorizationToken(InAuthorizationToken)
{
Curl = curl_easy_init();
Reset();
}
FHttpRequest::~FHttpRequest()
{
curl_easy_cleanup(static_cast<CURL*>(Curl));
check(!AsyncData);
}
void FHttpRequest::Reset()
{
Headers.Reset();
ResponseHeader.Reset();
ResponseBuffer.Reset();
ResponseCode = 0;
ReadCompositeBuffer.Reset();
WriteDataBufferPtr = nullptr;
WriteHeaderBufferPtr = nullptr;
BytesSent = 0;
BytesReceived = 0;
Attempts = 0;
ResultCode = CURL_LAST;
CURL* const LocalCurl = static_cast<CURL*>(Curl);
curl_easy_reset(LocalCurl);
check(!AsyncData);
// Options that are always set for all connections.
if constexpr (Http::Private::RequestTimeoutEnabled)
{
curl_easy_setopt(LocalCurl, CURLOPT_CONNECTTIMEOUT, Http::Private::RequestTimeoutSeconds);
}
curl_easy_setopt(LocalCurl, CURLOPT_FOLLOWLOCATION, 1L);
curl_easy_setopt(LocalCurl, CURLOPT_NOSIGNAL, 1L);
curl_easy_setopt(LocalCurl, CURLOPT_DNS_CACHE_TIMEOUT, 300L); // Don't re-resolve every minute
curl_easy_setopt(LocalCurl, CURLOPT_SHARE, SharedData ? SharedData->GetCurlShare() : nullptr);
// Response functions
curl_easy_setopt(LocalCurl, CURLOPT_HEADERDATA, this);
curl_easy_setopt(LocalCurl, CURLOPT_HEADERFUNCTION, Http::Private::FHttpRequestStatics::StaticWriteHeaderFn);
curl_easy_setopt(LocalCurl, CURLOPT_WRITEDATA, this);
curl_easy_setopt(LocalCurl, CURLOPT_WRITEFUNCTION, Http::Private::FHttpRequestStatics::StaticWriteBodyFn);
#if WITH_SSL
// SSL options
curl_easy_setopt(LocalCurl, CURLOPT_USE_SSL, CURLUSESSL_ALL);
curl_easy_setopt(LocalCurl, CURLOPT_SSL_VERIFYPEER, 1);
curl_easy_setopt(LocalCurl, CURLOPT_SSL_VERIFYHOST, 1);
curl_easy_setopt(LocalCurl, CURLOPT_SSLCERTTYPE, "PEM");
// SSL certification verification
curl_easy_setopt(LocalCurl, CURLOPT_CAINFO, nullptr);
curl_easy_setopt(LocalCurl, CURLOPT_SSL_CTX_FUNCTION, Http::Private::FHttpRequestStatics::StaticSSLCTXFn);
curl_easy_setopt(LocalCurl, CURLOPT_SSL_CTX_DATA, this);
#endif //#if WITH_SSL
// Rewind method, handle special error case where request need to rewind data stream
curl_easy_setopt(LocalCurl, CURLOPT_SEEKFUNCTION, Http::Private::FHttpRequestStatics::StaticSeekFn);
curl_easy_setopt(LocalCurl, CURLOPT_SEEKDATA, this);
// Set minimum speed behavior to allow operations to abort if the transfer speed is poor for the given duration (1kbps over a 30 second span)
curl_easy_setopt(LocalCurl, CURLOPT_LOW_SPEED_TIME, 30L);
curl_easy_setopt(LocalCurl, CURLOPT_LOW_SPEED_LIMIT, 1024L);
// Debug hooks
if constexpr(Http::Private::RequestDebugEnabled)
{
curl_easy_setopt(LocalCurl, CURLOPT_DEBUGDATA, this);
curl_easy_setopt(LocalCurl, CURLOPT_DEBUGFUNCTION, Http::Private::FHttpRequestStatics::StaticDebugCallback);
curl_easy_setopt(LocalCurl, CURLOPT_VERBOSE, 1L);
}
curl_easy_setopt(LocalCurl, CURLOPT_PRIVATE, this);
curl_easy_setopt(LocalCurl, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_2_0);
}
void FHttpRequest::PrepareToRetry()
{
ResponseHeader.Reset();
ResponseBuffer.Reset();
ResponseCode = 0;
BytesSent = 0;
BytesReceived = 0;
ResultCode = CURL_LAST;
++Attempts;
}
FHttpRequest::EResult FHttpRequest::PerformBlockingDownload(
const FStringView Uri,
TArray64<uint8>* const Buffer,
const EHttpContentType AcceptType,
const TConstArrayView<long> ExpectedErrorCodes)
{
curl_easy_setopt(static_cast<CURL*>(Curl), CURLOPT_HTTPGET, 1L);
WriteDataBufferPtr = Buffer;
AddContentTypeHeader(TEXTVIEW("Accept"), AcceptType);
return PerformBlocking(Uri, ERequestVerb::Get, 0u, ExpectedErrorCodes);
}
void FHttpRequest::EnqueueAsyncDownload(
DerivedData::IRequestOwner& Owner,
FHttpRequestPool* const Pool,
const FStringView Uri,
FOnHttpRequestComplete&& OnComplete,
const EHttpContentType AcceptType,
const TConstArrayView<long> ExpectedErrorCodes)
{
curl_easy_setopt(static_cast<CURL*>(Curl), CURLOPT_HTTPGET, 1L);
return EnqueueAsync(Owner, Pool, Uri, ERequestVerb::Get, 0u, MoveTemp(OnComplete), ExpectedErrorCodes);
}
void FHttpRequest::AddHeader(const FStringView Header, const FStringView Value)
{
check(ResultCode == CURL_LAST); // Cannot set header after request is sent
Headers.Emplace(WriteToString<128>(Header, TEXTVIEW(": "), Value));
}
bool FHttpRequest::GetHeader(const FAnsiStringView Header, FString& OutValue) const
{
check(ResultCode != CURL_LAST); // Cannot query headers before request is sent
// Find the header key in the (UTF-8) response buffer. If not found we can exit immediately.
const FUtf8StringView LocalHeaders((const UTF8CHAR*)ResponseHeader.GetData(), ResponseHeader.Num());
if (const int32 HeaderIndex = String::FindFirst(LocalHeaders, Header, ESearchCase::IgnoreCase); HeaderIndex != INDEX_NONE)
{
const FUtf8StringView HeaderToEnd = LocalHeaders.RightChop(HeaderIndex);
const int32 LineBreakIndex = String::FindFirstChar(HeaderToEnd, '\r');
const int32 ValueIndex = Header.Len() + 2; // colon and space
const FUtf8StringView Value = HeaderToEnd.Mid(ValueIndex, LineBreakIndex - ValueIndex);
OutValue = FString(Value);
return true;
}
return false;
}
TSharedPtr<FJsonObject> FHttpRequest::GetResponseAsJsonObject() const
{
FString Response = GetAnsiBufferAsString(ResponseBuffer);
TSharedPtr<FJsonObject> JsonObject;
TSharedRef<TJsonReader<> > JsonReader = TJsonReaderFactory<>::Create(Response);
FJsonSerializer::Deserialize(JsonReader, JsonObject);
return JsonObject;
}
TArray<TSharedPtr<FJsonValue>> FHttpRequest::GetResponseAsJsonArray() const
{
FString Response = GetAnsiBufferAsString(ResponseBuffer);
TArray<TSharedPtr<FJsonValue>> JsonArray;
TSharedRef<TJsonReader<>> JsonReader = TJsonReaderFactory<>::Create(Response);
FJsonSerializer::Deserialize(JsonReader, JsonArray);
return JsonArray;
}
bool FHttpRequest::AllowAsync()
{
if (!FGenericPlatformProcess::SupportsMultithreading() || !bHttpEnableAsync)
{
return false;
}
return true;
}
void FHttpRequest::CompleteAsync(FResultCode Result)
{
ResultCode = Result;
curl_easy_getinfo(static_cast<CURL*>(Curl), CURLINFO_RESPONSE_CODE, &ResponseCode);
LogResult(Result, *AsyncData->Uri, AsyncData->Verb, AsyncData->ExpectedErrorCodes);
ECompletionBehavior Behavior;
{
FHttpRequest::EResult HttpResult;
switch (ResultCode)
{
case CURLE_OK:
HttpResult = EResult::Success;
break;
case CURLE_OPERATION_TIMEDOUT:
HttpResult = EResult::FailedTimeout;
break;
default:
HttpResult = EResult::Failed;
break;
}
DerivedData::FRequestBarrier Barrier(*AsyncData->Owner, DerivedData::ERequestBarrierFlags::Priority);
Behavior = AsyncData->OnComplete(HttpResult, this);
}
if (Behavior == ECompletionBehavior::Retry && !AsyncData->Owner->IsCanceled())
{
PrepareToRetry();
SharedData->AddRequest(Curl);
}
else
{
AsyncData->Owner->End(AsyncData, [this, Behavior]
{
AsyncData->Event.Trigger();
FHttpRequestPool* Pool = AsyncData->Pool;
AsyncData = nullptr;
if (Pool)
{
Pool->ReleaseRequestToPool(this);
}
});
}
}
void FHttpRequest::AddContentTypeHeader(FStringView Header, EHttpContentType Type)
{
if (Type != EHttpContentType::UnspecifiedContentType)
{
AddHeader(Header, GetHttpMimeType(Type));
}
}
static const char* GetSessionIdHeader()
{
static FCbObjectId SessionId = FCbObjectId::NewObjectId();
static const char* HeaderString = []
{
static TAnsiStringBuilder<64> SessionIdHeader;
SessionIdHeader << "UE-Session: " << SessionId;
return SessionIdHeader.GetData();
}();
return HeaderString;
}
static std::atomic<int> GRequestId = 1;
Http::Private::FCurlStringList FHttpRequest::PrepareToIssueRequest(FStringView Uri, ERequestVerb Verb, uint64 ContentLength)
{
// Strip leading slashes because the separating slash is added below.
Uri = FAsciiSet::TrimPrefixWith(Uri, "/");
curl_easy_setopt(static_cast<CURL*>(Curl), CURLOPT_URL, *WriteToUtf8String<512>(EffectiveDomain, '/', Uri));
// Set up response header buffer.
WriteHeaderBufferPtr = &ResponseHeader;
// Use internal response data buffer if not provided by the caller.
if (WriteDataBufferPtr == nullptr)
{
WriteDataBufferPtr = &ResponseBuffer;
}
// Set up headers.
curl_slist* CurlHeaders = nullptr;
const auto AddHeader = [&CurlHeaders](const ANSICHAR* Header)
{
CurlHeaders = curl_slist_append(CurlHeaders, Header);
};
AddHeader(GetSessionIdHeader());
AddHeader(*WriteToAnsiString<32>(ANSITEXTVIEW("UE-Request: "), GRequestId.fetch_add(1, std::memory_order_relaxed)));
// User-Agent: UnrealEngine/X.Y.Z-<CL> (<Platform>; <Config> <TargetType>; <BranchName>) <AppName> (<ProjectName>)
const FEngineVersion& Version = FEngineVersion::Current();
TUtf8StringBuilder<256> UserAgent;
UserAgent << "User-Agent: UnrealEngine/"
<< Version.GetMajor() << '.' << Version.GetMinor() << '.' << Version.GetPatch() << '-' << Version.GetChangelist()
<< " (" << FPlatformProperties::PlatformName()
<< "; " << LexToString(FApp::GetBuildConfiguration()) << ' ' << LexToString(FApp::GetBuildTargetType())
<< "; " << FApp::GetBranchName()
<< ") " << FApp::GetName();
if (FApp::HasProjectName())
{
UserAgent << " (" << FApp::GetProjectName() << ")";
}
AddHeader((const ANSICHAR*)*UserAgent);
// Strip any Expect: 100-Continue header since this just introduces latency.
AddHeader("Expect:");
for (const FString& Header : Headers)
{
AddHeader(TCHAR_TO_ANSI(*Header));
}
if ((Verb != ERequestVerb::Get) && (Verb != ERequestVerb::Delete))
{
AddHeader(*WriteToAnsiString<32>(ANSITEXTVIEW("Content-Length: "), ContentLength));
}
if (AuthorizationToken)
{
AddHeader(*WriteToAnsiString<1024>(*AuthorizationToken));
}
curl_easy_setopt(static_cast<CURL*>(Curl), CURLOPT_HTTPHEADER, CurlHeaders);
return Http::Private::FCurlStringList(CurlHeaders);
}
FHttpRequest::EResult FHttpRequest::PerformBlocking(
const FStringView Uri,
const ERequestVerb Verb,
const uint64 ContentLength,
const TConstArrayView<long> ExpectedErrorCodes)
{
TRACE_CPUPROFILER_EVENT_SCOPE(HttpDDC_CurlPerform);
Http::Private::FCurlStringList CurlHeaders = PrepareToIssueRequest(Uri, Verb, ContentLength);
ResultCode = curl_easy_perform(static_cast<CURL*>(Curl));
curl_easy_getinfo(static_cast<CURL*>(Curl), CURLINFO_RESPONSE_CODE, &ResponseCode);
LogResult(ResultCode, Uri, Verb, ExpectedErrorCodes);
return ResultCode == CURLE_OK ? EResult::Success : EResult::Failed;
}
void FHttpRequest::EnqueueAsync(
DerivedData::IRequestOwner& Owner,
FHttpRequestPool* const Pool,
const FStringView Uri,
const ERequestVerb Verb,
const uint64 ContentLength,
FOnHttpRequestComplete&& OnComplete,
const TConstArrayView<long> ExpectedErrorCodes)
{
if (!AllowAsync())
{
while (OnComplete(PerformBlocking(Uri, Verb, ContentLength, ExpectedErrorCodes), this) == ECompletionBehavior::Retry)
{
PrepareToRetry();
}
if (Pool)
{
Pool->ReleaseRequestToPool(this);
}
return;
}
TRACE_CPUPROFILER_EVENT_SCOPE(HttpDDC_CurlEnqueueAsync);
AsyncData = new Http::Private::FAsyncRequestData;
AsyncData->Owner = &Owner;
AsyncData->Pool = Pool;
AsyncData->CurlHeaders = PrepareToIssueRequest(Uri, Verb, ContentLength);
AsyncData->Uri = Uri;
AsyncData->Verb = Verb;
AsyncData->ExpectedErrorCodes = ExpectedErrorCodes;
AsyncData->OnComplete = MoveTemp(OnComplete);
AsyncData->Owner->Begin(AsyncData);
SharedData->AddRequest(Curl);
}
void FHttpRequest::LogResult(
const FResultCode Result,
const FStringView Uri,
const ERequestVerb Verb,
const TConstArrayView<long> ExpectedErrorCodes) const
{
if (Result == CURLE_OK)
{
const bool bSuccess = (IsSuccessResponse(ResponseCode) || ExpectedErrorCodes.Contains(ResponseCode));
const TCHAR* VerbStr = nullptr;
TStringBuilder<32> AdditionalInfo;
switch (Verb)
{
case ERequestVerb::Head:
VerbStr = TEXT("querying");
break;
case ERequestVerb::Get:
VerbStr = TEXT("fetching");
AdditionalInfo << TEXTVIEW("Received: ") << uint64(BytesReceived) << TEXTVIEW(" bytes.");
break;
case ERequestVerb::Put:
VerbStr = TEXT("updating");
AdditionalInfo << TEXTVIEW("Sent: ") << uint64(BytesSent) << TEXTVIEW(" bytes.");
break;
case ERequestVerb::Post:
VerbStr = TEXT("posting");
break;
case ERequestVerb::Delete:
VerbStr = TEXT("deleting");
break;
default:
checkNoEntry();
break;
}
if (bSuccess)
{
UE_LOG(LogDerivedDataCache, Verbose,
TEXT("%s: Finished %s HTTP cache entry (response %d) from %.*s. %s"),
*GetName(), VerbStr, ResponseCode, Uri.Len(), Uri.GetData(), *AdditionalInfo);
}
else if (bLogErrors)
{
// Print the response body if we got one, otherwise print header.
FString Response = GetAnsiBufferAsString(ResponseBuffer.Num() > 0 ? ResponseBuffer : ResponseHeader);
Response.ReplaceCharInline(TEXT('\n'), TEXT(' '));
Response.ReplaceCharInline(TEXT('\r'), TEXT(' '));
// Don't log access denied as error, since tokens can expire mid-session.
if (ResponseCode == 401)
{
UE_LOG(LogDerivedDataCache, Verbose,
TEXT("%s: Failed %s HTTP cache entry (response %d) from %.*s. Response: %s"),
*GetName(), VerbStr, ResponseCode, Uri.Len(), Uri.GetData(), *Response);
}
else
{
UE_LOG(LogDerivedDataCache, Display,
TEXT("%s: Failed %s HTTP cache entry (response %d) from %.*s. Response: %s"),
*GetName(), VerbStr, ResponseCode, Uri.Len(), Uri.GetData(), *Response);
}
}
}
else if (bLogErrors)
{
UE_LOG(LogDerivedDataCache, Display,
TEXT("%s: Error while connecting to %s: %s"),
*GetName(), *EffectiveDomain, ANSI_TO_TCHAR(curl_easy_strerror(static_cast<CURLcode>(Result))));
}
}
FHttpRequest::EResult FHttpRequest::PerformBlockingPut(
const FStringView Uri,
const FCompositeBuffer& Buffer,
const EHttpContentType ContentType,
const TConstArrayView<long> ExpectedErrorCodes)
{
uint64 ContentLength = 0u;
CURL* const LocalCurl = static_cast<CURL*>(Curl);
curl_easy_setopt(LocalCurl, CURLOPT_UPLOAD, 1L);
curl_easy_setopt(LocalCurl, CURLOPT_INFILESIZE, Buffer.GetSize());
curl_easy_setopt(LocalCurl, CURLOPT_READDATA, this);
curl_easy_setopt(LocalCurl, CURLOPT_READFUNCTION, Http::Private::FHttpRequestStatics::StaticReadFn);
AddContentTypeHeader(TEXTVIEW("Content-Type"), ContentType);
ContentLength = Buffer.GetSize();
ReadCompositeBuffer = Buffer;
return PerformBlocking(Uri, ERequestVerb::Put, ContentLength, ExpectedErrorCodes);
}
FHttpRequest::EResult FHttpRequest::PerformBlockingPost(
const FStringView Uri,
const FCompositeBuffer& Buffer,
const EHttpContentType ContentType,
const EHttpContentType AcceptType,
const TConstArrayView<long> ExpectedErrorCodes)
{
uint64 ContentLength = 0;
CURL* const LocalCurl = static_cast<CURL*>(Curl);
curl_easy_setopt(LocalCurl, CURLOPT_POST, 1L);
curl_easy_setopt(LocalCurl, CURLOPT_POSTFIELDSIZE, Buffer.GetSize());
curl_easy_setopt(LocalCurl, CURLOPT_READDATA, this);
curl_easy_setopt(LocalCurl, CURLOPT_READFUNCTION, Http::Private::FHttpRequestStatics::StaticReadFn);
AddContentTypeHeader(TEXTVIEW("Content-Type"), ContentType);
AddContentTypeHeader(TEXTVIEW("Accept"), AcceptType);
ContentLength = Buffer.GetSize();
ReadCompositeBuffer = Buffer;
return PerformBlocking(Uri, ERequestVerb::Post, ContentLength, ExpectedErrorCodes);
}
void FHttpRequest::EnqueueAsyncPut(
DerivedData::IRequestOwner& Owner,
FHttpRequestPool* const Pool,
const FStringView Uri,
const FCompositeBuffer& Buffer,
FOnHttpRequestComplete&& OnComplete,
const EHttpContentType ContentType,
const TConstArrayView<long> ExpectedErrorCodes)
{
uint64 ContentLength = 0;
CURL* const LocalCurl = static_cast<CURL*>(Curl);
curl_easy_setopt(LocalCurl, CURLOPT_UPLOAD, 1L);
curl_easy_setopt(LocalCurl, CURLOPT_INFILESIZE, Buffer.GetSize());
curl_easy_setopt(LocalCurl, CURLOPT_READDATA, this);
curl_easy_setopt(LocalCurl, CURLOPT_READFUNCTION, Http::Private::FHttpRequestStatics::StaticReadFn);
AddContentTypeHeader(TEXTVIEW("Content-Type"), ContentType);
ReadCompositeBuffer = Buffer;
ContentLength = Buffer.GetSize();
return EnqueueAsync(Owner, Pool, Uri, ERequestVerb::Put, ContentLength, MoveTemp(OnComplete), ExpectedErrorCodes);
}
void FHttpRequest::EnqueueAsyncPost(
DerivedData::IRequestOwner& Owner,
FHttpRequestPool* const Pool,
const FStringView Uri,
const FCompositeBuffer& Buffer,
FOnHttpRequestComplete&& OnComplete,
const EHttpContentType ContentType,
const EHttpContentType AcceptType,
const TConstArrayView<long> ExpectedErrorCodes)
{
uint64 ContentLength = 0;
CURL* const LocalCurl = static_cast<CURL*>(Curl);
curl_easy_setopt(LocalCurl, CURLOPT_POST, 1L);
curl_easy_setopt(LocalCurl, CURLOPT_POSTFIELDSIZE, Buffer.GetSize());
curl_easy_setopt(LocalCurl, CURLOPT_READDATA, this);
curl_easy_setopt(LocalCurl, CURLOPT_READFUNCTION, Http::Private::FHttpRequestStatics::StaticReadFn);
AddContentTypeHeader(TEXTVIEW("Content-Type"), ContentType);
AddContentTypeHeader(TEXTVIEW("Accept"), AcceptType);
ReadCompositeBuffer = Buffer;
ContentLength = Buffer.GetSize();
return EnqueueAsync(Owner, Pool, Uri, ERequestVerb::Post, ContentLength, MoveTemp(OnComplete), ExpectedErrorCodes);
}
FHttpRequest::EResult FHttpRequest::PerformBlockingHead(
const FStringView Uri,
const EHttpContentType AcceptType,
const TConstArrayView<long> ExpectedErrorCodes)
{
curl_easy_setopt(static_cast<CURL*>(Curl), CURLOPT_NOBODY, 1L);
AddContentTypeHeader(TEXTVIEW("Accept"), AcceptType);
return PerformBlocking(Uri, ERequestVerb::Head, 0, ExpectedErrorCodes);
}
FHttpRequest::EResult FHttpRequest::PerformBlockingDelete(
const FStringView Uri,
const TConstArrayView<long> ExpectedErrorCodes)
{
curl_easy_setopt(static_cast<CURL*>(Curl), CURLOPT_CUSTOMREQUEST, "DELETE");
return PerformBlocking(Uri, ERequestVerb::Delete, 0, ExpectedErrorCodes);
}
void FHttpRequest::EnqueueAsyncHead(
DerivedData::IRequestOwner& Owner,
FHttpRequestPool* const Pool,
const FStringView Uri,
FOnHttpRequestComplete&& OnComplete,
const EHttpContentType AcceptType,
const TConstArrayView<long> ExpectedErrorCodes)
{
curl_easy_setopt(static_cast<CURL*>(Curl), CURLOPT_NOBODY, 1L);
AddContentTypeHeader(TEXTVIEW("Accept"), AcceptType);
return EnqueueAsync(Owner, Pool, Uri, ERequestVerb::Head, 0, MoveTemp(OnComplete), ExpectedErrorCodes);
}
void FHttpRequest::EnqueueAsyncDelete(
DerivedData::IRequestOwner& Owner,
FHttpRequestPool* const Pool,
const FStringView Uri,
FOnHttpRequestComplete&& OnComplete,
const TConstArrayView<long> ExpectedErrorCodes)
{
curl_easy_setopt(static_cast<CURL*>(Curl), CURLOPT_CUSTOMREQUEST, "DELETE");
return EnqueueAsync(Owner, Pool, Uri, ERequestVerb::Delete, 0, MoveTemp(OnComplete), ExpectedErrorCodes);
}
} // UE