/**
The work function of EfiHttpResponse().
@param[in] Wrap Pointer to HTTP token's wrap data.
@retval EFI_SUCCESS Allocation succeeded.
@retval EFI_OUT_OF_RESOURCES Failed to complete the opration due to lack of resources.
@retval EFI_NOT_READY Can't find a corresponding Tx4Token/Tx6Token or
the EFI_HTTP_UTILITIES_PROTOCOL is not available.
**/
EFI_STATUS
HttpResponseWorker (
IN HTTP_TOKEN_WRAP *Wrap
)
{
EFI_STATUS Status;
EFI_HTTP_MESSAGE *HttpMsg;
CHAR8 *EndofHeader;
CHAR8 *HttpHeaders;
UINTN SizeofHeaders;
UINTN BufferSize;
UINTN StatusCode;
CHAR8 *Tmp;
CHAR8 *HeaderTmp;
CHAR8 *StatusCodeStr;
UINTN BodyLen;
HTTP_PROTOCOL *HttpInstance;
EFI_HTTP_TOKEN *Token;
NET_MAP_ITEM *Item;
HTTP_TOKEN_WRAP *ValueInItem;
UINTN HdrLen;
if (Wrap == NULL || Wrap->HttpInstance == NULL) {
return EFI_INVALID_PARAMETER;
}
HttpInstance = Wrap->HttpInstance;
Token = Wrap->HttpToken;
HttpMsg = Token->Message;
HttpInstance->EndofHeader = NULL;
HttpInstance->HttpHeaders = NULL;
HttpMsg->Headers = NULL;
HttpHeaders = NULL;
SizeofHeaders = 0;
BufferSize = 0;
EndofHeader = NULL;
if (HttpMsg->Data.Response != NULL) {
//
// Need receive the HTTP headers, prepare buffer.
//
Status = HttpCreateTcpRxEventForHeader (HttpInstance);
if (EFI_ERROR (Status)) {
goto Error;
}
//
// Check whether we have cached header from previous call.
//
if ((HttpInstance->CacheBody != NULL) && (HttpInstance->NextMsg != NULL)) {
//
// The data is stored at [NextMsg, CacheBody + CacheLen].
//
HdrLen = HttpInstance->CacheBody + HttpInstance->CacheLen - HttpInstance->NextMsg;
HttpHeaders = AllocateZeroPool (HdrLen);
if (HttpHeaders == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto Error;
}
CopyMem (HttpHeaders, HttpInstance->NextMsg, HdrLen);
FreePool (HttpInstance->CacheBody);
HttpInstance->CacheBody = NULL;
HttpInstance->NextMsg = NULL;
HttpInstance->CacheOffset = 0;
SizeofHeaders = HdrLen;
BufferSize = HttpInstance->CacheLen;
//
// Check whether we cached the whole HTTP headers.
//
EndofHeader = AsciiStrStr (HttpHeaders, HTTP_END_OF_HDR_STR);
}
HttpInstance->EndofHeader = &EndofHeader;
HttpInstance->HttpHeaders = &HttpHeaders;
Status = HttpTcpReceiveHeader (HttpInstance, &SizeofHeaders, &BufferSize);
if (EFI_ERROR (Status)) {
goto Error;
}
ASSERT (HttpHeaders != NULL);
//
// Cache the part of body.
//
BodyLen = BufferSize - (EndofHeader - HttpHeaders);
if (BodyLen > 0) {
if (HttpInstance->CacheBody != NULL) {
FreePool (HttpInstance->CacheBody);
}
HttpInstance->CacheBody = AllocateZeroPool (BodyLen);
if (HttpInstance->CacheBody == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto Error;
}
CopyMem (HttpInstance->CacheBody, EndofHeader, BodyLen);
HttpInstance->CacheLen = BodyLen;
}
//
// Search for Status Code.
//
StatusCodeStr = HttpHeaders + AsciiStrLen (HTTP_VERSION_STR) + 1;
if (StatusCodeStr == NULL) {
goto Error;
}
StatusCode = AsciiStrDecimalToUintn (StatusCodeStr);
//
// Remove the first line of HTTP message, e.g. "HTTP/1.1 200 OK\r\n".
//
Tmp = AsciiStrStr (HttpHeaders, HTTP_CRLF_STR);
if (Tmp == NULL) {
goto Error;
}
Tmp = Tmp + AsciiStrLen (HTTP_CRLF_STR);
SizeofHeaders = SizeofHeaders - (Tmp - HttpHeaders);
HeaderTmp = AllocateZeroPool (SizeofHeaders);
if (HeaderTmp == NULL) {
goto Error;
}
CopyMem (HeaderTmp, Tmp, SizeofHeaders);
FreePool (HttpHeaders);
HttpHeaders = HeaderTmp;
//
// Check whether the EFI_HTTP_UTILITIES_PROTOCOL is available.
//
if (mHttpUtilities == NULL) {
Status = EFI_NOT_READY;
goto Error;
}
//
// Parse the HTTP header into array of key/value pairs.
//
Status = mHttpUtilities->Parse (
mHttpUtilities,
HttpHeaders,
SizeofHeaders,
&HttpMsg->Headers,
&HttpMsg->HeaderCount
);
if (EFI_ERROR (Status)) {
goto Error;
}
FreePool (HttpHeaders);
HttpHeaders = NULL;
HttpMsg->Data.Response->StatusCode = HttpMappingToStatusCode (StatusCode);
HttpInstance->StatusCode = StatusCode;
//
// Init message-body parser by header information.
//
Status = EFI_NOT_READY;
ValueInItem = NULL;
NetMapRemoveHead (&HttpInstance->TxTokens, (VOID**) &ValueInItem);
if (ValueInItem == NULL) {
goto Error;
}
//
// The first Tx Token not transmitted yet, insert back and return error.
//
if (!ValueInItem->TcpWrap.IsTxDone) {
goto Error2;
}
Status = HttpInitMsgParser (
ValueInItem->TcpWrap.Method,
HttpMsg->Data.Response->StatusCode,
HttpMsg->HeaderCount,
HttpMsg->Headers,
HttpBodyParserCallback,
(VOID *) ValueInItem,
&HttpInstance->MsgParser
);
if (EFI_ERROR (Status)) {
goto Error2;
}
//
// Check whether we received a complete HTTP message.
//
if (HttpInstance->CacheBody != NULL) {
Status = HttpParseMessageBody (HttpInstance->MsgParser, HttpInstance->CacheLen, HttpInstance->CacheBody);
if (EFI_ERROR (Status)) {
goto Error2;
}
if (HttpIsMessageComplete (HttpInstance->MsgParser)) {
//
// Free the MsgParse since we already have a full HTTP message.
//
HttpFreeMsgParser (HttpInstance->MsgParser);
HttpInstance->MsgParser = NULL;
}
}
if ((HttpMsg->Body == NULL) || (HttpMsg->BodyLength == 0)) {
Status = EFI_SUCCESS;
goto Exit;
}
}
//
// Receive the response body.
//
BodyLen = 0;
//
// First check whether we cached some data.
//
if (HttpInstance->CacheBody != NULL) {
//
// Calculate the length of the cached data.
//
if (HttpInstance->NextMsg != NULL) {
//
// We have a cached HTTP message which includes a part of HTTP header of next message.
//
BodyLen = HttpInstance->NextMsg - (HttpInstance->CacheBody + HttpInstance->CacheOffset);
} else {
BodyLen = HttpInstance->CacheLen - HttpInstance->CacheOffset;
}
if (BodyLen > 0) {
//
// We have some cached data. Just copy the data and return.
//
if (HttpMsg->BodyLength < BodyLen) {
CopyMem (HttpMsg->Body, HttpInstance->CacheBody + HttpInstance->CacheOffset, HttpMsg->BodyLength);
HttpInstance->CacheOffset = HttpInstance->CacheOffset + HttpMsg->BodyLength;
} else {
//
// Copy all cached data out.
//
CopyMem (HttpMsg->Body, HttpInstance->CacheBody + HttpInstance->CacheOffset, BodyLen);
HttpInstance->CacheOffset = BodyLen + HttpInstance->CacheOffset;
HttpMsg->BodyLength = BodyLen;
if (HttpInstance->NextMsg == NULL) {
//
// There is no HTTP header of next message. Just free the cache buffer.
//
FreePool (HttpInstance->CacheBody);
HttpInstance->CacheBody = NULL;
HttpInstance->NextMsg = NULL;
HttpInstance->CacheOffset = 0;
}
}
//
// Return since we aready received required data.
//
Status = EFI_SUCCESS;
goto Exit;
}
if (BodyLen == 0 && HttpInstance->MsgParser == NULL) {
//
// We received a complete HTTP message, and we don't have more data to return to caller.
//
HttpMsg->BodyLength = 0;
Status = EFI_SUCCESS;
goto Exit;
}
}
ASSERT (HttpInstance->MsgParser != NULL);
//
// We still need receive more data when there is no cache data and MsgParser is not NULL;
//
Status = HttpTcpReceiveBody (Wrap, HttpMsg);
if (EFI_ERROR (Status)) {
goto Error;
}
return Status;
Exit:
Item = NetMapFindKey (&Wrap->HttpInstance->RxTokens, Wrap->HttpToken);
if (Item != NULL) {
NetMapRemoveItem (&Wrap->HttpInstance->RxTokens, Item, NULL);
}
if (HttpInstance->StatusCode >= HTTP_ERROR_OR_NOT_SUPPORT_STATUS_CODE) {
Token->Status = EFI_HTTP_ERROR;
} else {
Token->Status = Status;
}
gBS->SignalEvent (Token->Event);
HttpCloseTcpRxEvent (Wrap);
FreePool (Wrap);
return Status;
Error2:
NetMapInsertHead (&HttpInstance->TxTokens, ValueInItem->HttpToken, ValueInItem);
Error:
HttpTcpTokenCleanup (Wrap);
if (HttpHeaders != NULL) {
FreePool (HttpHeaders);
}
if (HttpMsg->Headers != NULL) {
FreePool (HttpMsg->Headers);
}
if (HttpInstance->CacheBody != NULL) {
FreePool (HttpInstance->CacheBody);
HttpInstance->CacheBody = NULL;
}
if (HttpInstance->StatusCode >= HTTP_ERROR_OR_NOT_SUPPORT_STATUS_CODE) {
Token->Status = EFI_HTTP_ERROR;
} else {
Token->Status = Status;
}
gBS->SignalEvent (Token->Event);
return Status;
}
/**
The work function of EfiHttpResponse().
@param[in] Wrap Pointer to HTTP token's wrap data.
@retval EFI_SUCCESS Allocation succeeded.
@retval EFI_OUT_OF_RESOURCES Failed to complete the opration due to lack of resources.
@retval EFI_NOT_READY Can't find a corresponding Tx4Token/Tx6Token or
the EFI_HTTP_UTILITIES_PROTOCOL is not available.
**/
EFI_STATUS
HttpResponseWorker (
IN HTTP_TOKEN_WRAP *Wrap
)
{
EFI_STATUS Status;
EFI_HTTP_MESSAGE *HttpMsg;
CHAR8 *EndofHeader;
CHAR8 *HttpHeaders;
UINTN SizeofHeaders;
UINTN BufferSize;
UINTN StatusCode;
CHAR8 *Tmp;
CHAR8 *HeaderTmp;
CHAR8 *StatusCodeStr;
UINTN BodyLen;
HTTP_PROTOCOL *HttpInstance;
EFI_HTTP_TOKEN *Token;
NET_MAP_ITEM *Item;
HTTP_TOKEN_WRAP *ValueInItem;
UINTN HdrLen;
if (Wrap == NULL || Wrap->HttpInstance == NULL) {
return EFI_INVALID_PARAMETER;
}
HttpInstance = Wrap->HttpInstance;
Token = Wrap->HttpToken;
HttpMsg = Token->Message;
HttpInstance->EndofHeader = NULL;
HttpInstance->HttpHeaders = NULL;
HttpMsg->Headers = NULL;
HttpHeaders = NULL;
SizeofHeaders = 0;
BufferSize = 0;
EndofHeader = NULL;
if (HttpMsg->Data.Response != NULL) {
//
// Need receive the HTTP headers, prepare buffer.
//
Status = HttpCreateTcpRxEventForHeader (HttpInstance);
if (EFI_ERROR (Status)) {
goto Error;
}
//
// Check whether we have cached header from previous call.
//
if ((HttpInstance->CacheBody != NULL) && (HttpInstance->NextMsg != NULL)) {
//
// The data is stored at [NextMsg, CacheBody + CacheLen].
//
HdrLen = HttpInstance->CacheBody + HttpInstance->CacheLen - HttpInstance->NextMsg;
HttpHeaders = AllocateZeroPool (HdrLen);
if (HttpHeaders == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto Error;
}
CopyMem (HttpHeaders, HttpInstance->NextMsg, HdrLen);
FreePool (HttpInstance->CacheBody);
HttpInstance->CacheBody = NULL;
HttpInstance->NextMsg = NULL;
HttpInstance->CacheOffset = 0;
SizeofHeaders = HdrLen;
BufferSize = HttpInstance->CacheLen;
//
// Check whether we cached the whole HTTP headers.
//
EndofHeader = AsciiStrStr (HttpHeaders, HTTP_END_OF_HDR_STR);
}
HttpInstance->EndofHeader = &EndofHeader;
HttpInstance->HttpHeaders = &HttpHeaders;
if (HttpInstance->TimeoutEvent == NULL) {
//
// Create TimeoutEvent for response
//
Status = gBS->CreateEvent (
EVT_TIMER,
TPL_CALLBACK,
NULL,
NULL,
&HttpInstance->TimeoutEvent
);
if (EFI_ERROR (Status)) {
goto Error;
}
}
//
// Start the timer, and wait Timeout seconds to receive the header packet.
//
Status = gBS->SetTimer (HttpInstance->TimeoutEvent, TimerRelative, HTTP_RESPONSE_TIMEOUT * TICKS_PER_SECOND);
if (EFI_ERROR (Status)) {
goto Error;
}
Status = HttpTcpReceiveHeader (HttpInstance, &SizeofHeaders, &BufferSize, HttpInstance->TimeoutEvent);
gBS->SetTimer (HttpInstance->TimeoutEvent, TimerCancel, 0);
if (EFI_ERROR (Status)) {
goto Error;
}
ASSERT (HttpHeaders != NULL);
//
// Cache the part of body.
//
BodyLen = BufferSize - (EndofHeader - HttpHeaders);
if (BodyLen > 0) {
if (HttpInstance->CacheBody != NULL) {
FreePool (HttpInstance->CacheBody);
}
HttpInstance->CacheBody = AllocateZeroPool (BodyLen);
if (HttpInstance->CacheBody == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto Error;
}
CopyMem (HttpInstance->CacheBody, EndofHeader, BodyLen);
HttpInstance->CacheLen = BodyLen;
}
//
// Search for Status Code.
//
StatusCodeStr = HttpHeaders + AsciiStrLen (HTTP_VERSION_STR) + 1;
if (StatusCodeStr == NULL) {
goto Error;
}
StatusCode = AsciiStrDecimalToUintn (StatusCodeStr);
//
// Remove the first line of HTTP message, e.g. "HTTP/1.1 200 OK\r\n".
//
Tmp = AsciiStrStr (HttpHeaders, HTTP_CRLF_STR);
if (Tmp == NULL) {
goto Error;
}
//
// We could have response with just a HTTP message and no headers. For Example,
// "100 Continue". In such cases, we would not want to unnecessarily call a Parse
// method. A "\r\n" following Tmp string again would indicate an end. Compare and
// set SizeofHeaders to 0.
//
Tmp = Tmp + AsciiStrLen (HTTP_CRLF_STR);
if (CompareMem (Tmp, HTTP_CRLF_STR, AsciiStrLen (HTTP_CRLF_STR)) == 0) {
SizeofHeaders = 0;
} else {
SizeofHeaders = SizeofHeaders - (Tmp - HttpHeaders);
}
HttpMsg->Data.Response->StatusCode = HttpMappingToStatusCode (StatusCode);
HttpInstance->StatusCode = StatusCode;
Status = EFI_NOT_READY;
ValueInItem = NULL;
//
// In cases of PUT/POST, after an initial request-response pair, we would do a
// continuous request without a response call. So, we would not do an insert of
// TxToken. After we have sent the complete file, we will call a response to get
// a final response from server. In such a case, we would not have any TxTokens.
// Hence, check that case before doing a NetMapRemoveHead.
//
if (!NetMapIsEmpty (&HttpInstance->TxTokens)) {
NetMapRemoveHead (&HttpInstance->TxTokens, (VOID**) &ValueInItem);
if (ValueInItem == NULL) {
goto Error;
}
//
// The first Tx Token not transmitted yet, insert back and return error.
//
if (!ValueInItem->TcpWrap.IsTxDone) {
goto Error2;
}
}
if (SizeofHeaders != 0) {
HeaderTmp = AllocateZeroPool (SizeofHeaders);
if (HeaderTmp == NULL) {
goto Error;
}
CopyMem (HeaderTmp, Tmp, SizeofHeaders);
FreePool (HttpHeaders);
HttpHeaders = HeaderTmp;
//
// Check whether the EFI_HTTP_UTILITIES_PROTOCOL is available.
//
if (mHttpUtilities == NULL) {
Status = EFI_NOT_READY;
goto Error;
}
//
// Parse the HTTP header into array of key/value pairs.
//
Status = mHttpUtilities->Parse (
mHttpUtilities,
HttpHeaders,
SizeofHeaders,
&HttpMsg->Headers,
&HttpMsg->HeaderCount
);
if (EFI_ERROR (Status)) {
goto Error;
}
FreePool (HttpHeaders);
HttpHeaders = NULL;
//
// Init message-body parser by header information.
//
Status = HttpInitMsgParser (
HttpInstance->Method,
HttpMsg->Data.Response->StatusCode,
HttpMsg->HeaderCount,
HttpMsg->Headers,
HttpBodyParserCallback,
(VOID *) ValueInItem,
&HttpInstance->MsgParser
);
if (EFI_ERROR (Status)) {
goto Error2;
}
//
// Check whether we received a complete HTTP message.
//
if (HttpInstance->CacheBody != NULL) {
Status = HttpParseMessageBody (HttpInstance->MsgParser, HttpInstance->CacheLen, HttpInstance->CacheBody);
if (EFI_ERROR (Status)) {
goto Error2;
}
if (HttpIsMessageComplete (HttpInstance->MsgParser)) {
//
// Free the MsgParse since we already have a full HTTP message.
//
HttpFreeMsgParser (HttpInstance->MsgParser);
HttpInstance->MsgParser = NULL;
}
}
}
if ((HttpMsg->Body == NULL) || (HttpMsg->BodyLength == 0)) {
Status = EFI_SUCCESS;
goto Exit;
}
}
//
// Receive the response body.
//
BodyLen = 0;
//
// First check whether we cached some data.
//
if (HttpInstance->CacheBody != NULL) {
//
// Calculate the length of the cached data.
//
if (HttpInstance->NextMsg != NULL) {
//
// We have a cached HTTP message which includes a part of HTTP header of next message.
//
BodyLen = HttpInstance->NextMsg - (HttpInstance->CacheBody + HttpInstance->CacheOffset);
} else {
BodyLen = HttpInstance->CacheLen - HttpInstance->CacheOffset;
}
if (BodyLen > 0) {
//
// We have some cached data. Just copy the data and return.
//
if (HttpMsg->BodyLength < BodyLen) {
CopyMem (HttpMsg->Body, HttpInstance->CacheBody + HttpInstance->CacheOffset, HttpMsg->BodyLength);
HttpInstance->CacheOffset = HttpInstance->CacheOffset + HttpMsg->BodyLength;
} else {
//
// Copy all cached data out.
//
CopyMem (HttpMsg->Body, HttpInstance->CacheBody + HttpInstance->CacheOffset, BodyLen);
HttpInstance->CacheOffset = BodyLen + HttpInstance->CacheOffset;
HttpMsg->BodyLength = BodyLen;
if (HttpInstance->NextMsg == NULL) {
//
// There is no HTTP header of next message. Just free the cache buffer.
//
FreePool (HttpInstance->CacheBody);
HttpInstance->CacheBody = NULL;
HttpInstance->NextMsg = NULL;
HttpInstance->CacheOffset = 0;
}
}
//
// Return since we aready received required data.
//
Status = EFI_SUCCESS;
goto Exit;
}
if (BodyLen == 0 && HttpInstance->MsgParser == NULL) {
//
// We received a complete HTTP message, and we don't have more data to return to caller.
//
HttpMsg->BodyLength = 0;
Status = EFI_SUCCESS;
goto Exit;
}
}
ASSERT (HttpInstance->MsgParser != NULL);
if (HttpInstance->TimeoutEvent == NULL) {
//
// Create TimeoutEvent for response
//
Status = gBS->CreateEvent (
EVT_TIMER,
TPL_CALLBACK,
NULL,
NULL,
&HttpInstance->TimeoutEvent
);
if (EFI_ERROR (Status)) {
goto Error;
}
}
//
// Start the timer, and wait Timeout seconds to receive the body packet.
//
Status = gBS->SetTimer (HttpInstance->TimeoutEvent, TimerRelative, HTTP_RESPONSE_TIMEOUT * TICKS_PER_SECOND);
if (EFI_ERROR (Status)) {
goto Error;
}
//
// We still need receive more data when there is no cache data and MsgParser is not NULL;
//
Status = HttpTcpReceiveBody (Wrap, HttpMsg, HttpInstance->TimeoutEvent);
gBS->SetTimer (HttpInstance->TimeoutEvent, TimerCancel, 0);
if (EFI_ERROR (Status)) {
goto Error;
}
FreePool (Wrap);
return Status;
Exit:
Item = NetMapFindKey (&Wrap->HttpInstance->RxTokens, Wrap->HttpToken);
if (Item != NULL) {
NetMapRemoveItem (&Wrap->HttpInstance->RxTokens, Item, NULL);
}
if (HttpInstance->StatusCode >= HTTP_ERROR_OR_NOT_SUPPORT_STATUS_CODE) {
Token->Status = EFI_HTTP_ERROR;
} else {
Token->Status = Status;
}
gBS->SignalEvent (Token->Event);
HttpCloseTcpRxEvent (Wrap);
FreePool (Wrap);
return Status;
Error2:
NetMapInsertHead (&HttpInstance->TxTokens, ValueInItem->HttpToken, ValueInItem);
Error:
HttpTcpTokenCleanup (Wrap);
if (HttpHeaders != NULL) {
FreePool (HttpHeaders);
}
if (HttpMsg->Headers != NULL) {
FreePool (HttpMsg->Headers);
}
if (HttpInstance->CacheBody != NULL) {
FreePool (HttpInstance->CacheBody);
HttpInstance->CacheBody = NULL;
}
if (HttpInstance->StatusCode >= HTTP_ERROR_OR_NOT_SUPPORT_STATUS_CODE) {
Token->Status = EFI_HTTP_ERROR;
} else {
Token->Status = Status;
}
gBS->SignalEvent (Token->Event);
return Status;
}
