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我目前正在使用Microsoft HTTP Server API Version 2.0 （http://msdn.microsoft.com/en-us/library/windows/desktop/aa364510(v=vs.85).aspx）實現一個小的HTTP服務器。Microsoft HTTP Server API - 使用SSL，如何要求客戶端證書？
我需要在服務器端啓用HTTPS，並且在客戶端請求進入時（我需要客戶端能夠驗證服務器和服務器以驗證客戶端並且它們應該通過SSL進行通信）要求客戶端證書。
到目前爲止，我已經能夠啓用服務器端SSL，因此我可以安全地連接到 {0}，並向服務器發出請求並接收響應，但是我無法打開該功能也要求客戶端證書（並驗證它）。
我在應用程序代碼中說，我在聽「{} https://127.0.0.1:9999/hello」 URL（這是我添加到URL組URL），然後我用Netsh.exe工具的9999端口綁定到SSL：
C:\>netsh http add sslcert ipport=0.0.0.0:9999 certhash=e515b6512e92f4663252eac72c28a784f2d78c6 appid={2C565242-B238-11D3-442D-0008C779D776} clientcertnegotiation=enable
我不確定這個「clientcertnegotiation = enable」究竟應該做什麼，文檔說它應該「打開證書的談判」。所以，現在我增加了一個額外的函數調用我的HTTP服務器代碼：
DWORD answer = 0;
HTTP_SSL_CLIENT_CERT_INFO sslClientCertInfo;
ULONG bytesReceived;
answer = HttpReceiveClientCertificate(hReqQueue, pRequest->ConnectionId, 0,
&sslClientCertInfo, sizeof(HTTP_SSL_CLIENT_CERT_INFO), &bytesReceived, NULL);
我瞭解，現在的客戶會被提示輸入證書，但它不工作（我可能做錯事，所以這是我在這裏寫我的問題的原因）。 「答案」的值是1168（ERROR_NOT_FOUND）。我使用Firefox瀏覽器作爲客戶端，並且在那裏添加了一個證書：工具 - >選項 - >查看證書 - >導入，因此firefox應該可能使用該證書或提示符來獲取某個證書，但是我懷疑firefox doesn根本不會收到服務器對客戶端證書的請求。
無論如何，HTTP服務器應該在哪個時間要求客戶端證書？我認爲在收到請求後應該是正確的。爲了證明我究竟在做什麼，我使用微軟的HTTP服務器示例應用程序代碼（http://msdn.microsoft.com/en-us/library/windows/desktop/aa364640(v=vs.85).aspx），我已經sligthly修改：
#include "precomp.h"
#include <iostream>
//
// Macros.
//
#define INITIALIZE_HTTP_RESPONSE(resp, status, reason) \
do \
{ \
RtlZeroMemory((resp), sizeof(*(resp))); \
(resp)->StatusCode = (status); \
(resp)->pReason = (reason); \
(resp)->ReasonLength = (USHORT) strlen(reason); \
} while (FALSE)
#define ADD_KNOWN_HEADER(Response, HeaderId, RawValue) \
do \
{ \
(Response).Headers.KnownHeaders[(HeaderId)].pRawValue = \
(RawValue);\
(Response).Headers.KnownHeaders[(HeaderId)].RawValueLength = \
(USHORT) strlen(RawValue); \
} while(FALSE)
#define ALLOC_MEM(cb) HeapAlloc(GetProcessHeap(), 0, (cb))
#define FREE_MEM(ptr) HeapFree(GetProcessHeap(), 0, (ptr))
//
// Prototypes.
//
DWORD DoReceiveRequests(HANDLE hReqQueue);
DWORD SendHttpResponse(HANDLE hReqQueue, PHTTP_REQUEST pRequest, USHORT StatusCode, PSTR pReason, PSTR pEntity);
DWORD SendHttpPostResponse(HANDLE hReqQueue, PHTTP_REQUEST pRequest);
/*******************************************************************++
Routine Description:
main routine
Arguments:
argc - # of command line arguments.
argv - Arguments.
Return Value:
Success/Failure
--*******************************************************************/
int __cdecl wmain(int argc, wchar_t * argv[])
{
ULONG retCode;
HANDLE hReqQueue = NULL; //request queue handle
int UrlAdded = 0;
HTTPAPI_VERSION HttpApiVersion = HTTPAPI_VERSION_2;
retCode = HttpInitialize(
HttpApiVersion,
HTTP_INITIALIZE_SERVER ,
NULL
);
if (retCode == NO_ERROR)
{
// If intialize succeeded, create server session
HTTP_SERVER_SESSION_ID serverSessionId = NULL;
retCode = HttpCreateServerSession(HttpApiVersion, &serverSessionId, 0);
if (retCode == NO_ERROR)
{
// server session creation succeeded
//create request queue
retCode = HttpCreateRequestQueue(HttpApiVersion, NULL, NULL, 0, &hReqQueue);
if (retCode == NO_ERROR)
{
//create the URL group
HTTP_URL_GROUP_ID urlGroupId = NULL;
retCode = HttpCreateUrlGroup(serverSessionId, &urlGroupId, 0);
if (retCode == NO_ERROR)
{
retCode = HttpAddUrlToUrlGroup(urlGroupId, L"https://127.0.0.1:9999/hello", 0, 0);
if (retCode == NO_ERROR)
{
//Set url group properties
//First let's set the binding property:
HTTP_BINDING_INFO bindingInfo;
bindingInfo.RequestQueueHandle = hReqQueue;
HTTP_PROPERTY_FLAGS propertyFlags;
propertyFlags.Present = 1;
bindingInfo.Flags = propertyFlags;
retCode = HttpSetUrlGroupProperty(
urlGroupId,
HttpServerBindingProperty,
&bindingInfo,
sizeof(HTTP_BINDING_INFO));
DoReceiveRequests(hReqQueue);
}
HttpCloseUrlGroup(urlGroupId);
}//if HttpCreateUrlGroup succeeded
HttpCloseRequestQueue(hReqQueue);
}//if HttpCreateRequestQueue succeeded
HttpCloseServerSession(serverSessionId);
} // if HttpCreateServerSession succeeded
HttpTerminate(HTTP_INITIALIZE_SERVER, NULL);
}// if httpInialize succeeded
return retCode;
}//main
/*******************************************************************++
Routine Description:
The function to receive a request. This function calls the
corresponding function to handle the response.
Arguments:
hReqQueue - Handle to the request queue
Return Value:
Success/Failure.
--*******************************************************************/
DWORD DoReceiveRequests(IN HANDLE hReqQueue)
{
ULONG result;
HTTP_REQUEST_ID requestId;
DWORD bytesRead;
PHTTP_REQUEST pRequest;
PCHAR pRequestBuffer;
ULONG RequestBufferLength;
//
// Allocate a 2 KB buffer. This size should work for most
// requests. The buffer size can be increased if required. Space
// is also required for an HTTP_REQUEST structure.
//
RequestBufferLength = sizeof(HTTP_REQUEST) + 2048;
pRequestBuffer = (PCHAR) ALLOC_MEM(RequestBufferLength);
if (pRequestBuffer == NULL)
{
return ERROR_NOT_ENOUGH_MEMORY;
}
pRequest = (PHTTP_REQUEST)pRequestBuffer;
//
// Wait for a new request. This is indicated by a NULL
// request ID.
//
HTTP_SET_NULL_ID(&requestId);
for(;;)
{
RtlZeroMemory(pRequest, RequestBufferLength);
result = HttpReceiveHttpRequest(
hReqQueue, // Req Queue
requestId, // Req ID
0, // Flags
pRequest, // HTTP request buffer
RequestBufferLength,// req buffer length
&bytesRead, // bytes received
NULL // LPOVERLAPPED
);
if(NO_ERROR == result)
{
DWORD answer = 0;
HTTP_SSL_CLIENT_CERT_INFO sslClientCertInfo;
ULONG bytesReceived;
answer = HttpReceiveClientCertificate(hReqQueue, pRequest->ConnectionId, 0,
&sslClientCertInfo, sizeof(HTTP_SSL_CLIENT_CERT_INFO), &bytesReceived, NULL);
if (answer != NO_ERROR)
{
result = SendHttpResponse(hReqQueue, pRequest, 401, "Unauthorized request", "Unauthorized request");
}
else
{
result = SendHttpResponse(hReqQueue, pRequest, 200, "OK", "OK");
}
if (result != NO_ERROR)
{
break; //if failed to send response, stop listening for further incoming requests
}
//
// Reset the Request ID to handle the next request.
//
HTTP_SET_NULL_ID(&requestId);
}
else
{
break;
}
}
if(pRequestBuffer)
{
FREE_MEM(pRequestBuffer);
}
return result;
}
/*******************************************************************++
Routine Description:
The routine sends a HTTP response
Arguments:
hReqQueue - Handle to the request queue
pRequest - The parsed HTTP request
StatusCode - Response Status Code
pReason - Response reason phrase
pEntityString - Response entity body
Return Value:
Success/Failure.
--*******************************************************************/
DWORD SendHttpResponse(
IN HANDLE hReqQueue,
IN PHTTP_REQUEST pRequest,
IN USHORT StatusCode,
IN PSTR pReason,
IN PSTR pEntityString
)
{
HTTP_RESPONSE response;
HTTP_DATA_CHUNK dataChunk;
DWORD result;
DWORD bytesSent;
INITIALIZE_HTTP_RESPONSE(&response, StatusCode, pReason);
ADD_KNOWN_HEADER(response, HttpHeaderContentType, "text/html");
if(pEntityString)
{
//
// Add an entity chunk.
//
dataChunk.DataChunkType = HttpDataChunkFromMemory;
dataChunk.FromMemory.pBuffer = pEntityString;
dataChunk.FromMemory.BufferLength =
(ULONG) strlen(pEntityString);
response.EntityChunkCount = 1;
response.pEntityChunks = &dataChunk;
}
result = HttpSendHttpResponse(
hReqQueue, // ReqQueueHandle
pRequest->RequestId, // Request ID
0, // Flags
&response, // HTTP response
NULL, // pReserved1
&bytesSent, // bytes sent (OPTIONAL)
NULL, // pReserved2 (must be NULL)
0, // Reserved3 (must be 0)
NULL, // LPOVERLAPPED(OPTIONAL)
NULL // pReserved4 (must be NULL)
);
if(result != NO_ERROR)
{
wprintf(L"HttpSendHttpResponse failed with %lu \n", result);
}
return result;
}
所以我的問題是，我怎麼會啓用該功能需要客戶端證書，我如何在收到證書後驗證證書（當前示例代碼只嘗試從客戶端接收證書，驗證部分丟失）？ 我真的沒有找到任何使用Microsoft HTTP Server API並需要客戶端證書的互聯網示例。
謝謝大家。
嗨liismai，你有沒有取得任何進展？乾杯，曼努埃爾 – Manuel