REQUEST_NOTIFICATION_STATUS CCacheHelperModule::OnSendResponse(
IN IHttpContext* pHttpContext, IN ISendResponseProvider* pProvider)
{
UNREFERENCED_PARAMETER(pProvider);
IHttpResponse* pHttpResponse = pHttpContext->GetResponse();
IHttpRequest* pHttpRequest = pHttpContext->GetRequest();
if ((pHttpResponse != NULL) && (pHttpRequest != NULL))
{
HTTP_COOKED_URL url = pHttpRequest->GetRawHttpRequest()->CookedUrl;
if (!m_pConfig->UrlHasSitePrefix(url.pAbsPath))
return RQ_NOTIFICATION_CONTINUE;
CachingBehavior behavior = CachingBehaviorIgnore;
USHORT cchXCache;
PCSTR szXCache = pHttpResponse->GetHeader((PCSTR)"X-Cache", &cchXCache);
if (cchXCache > 0)
{
behavior = (CachingBehavior)StrToIntA(szXCache);
pHttpResponse->DeleteHeader((PCSTR)"X-Cache");
}
else
{
behavior = m_pConfig->GetCachePolicy(url.pAbsPath);
}
switch (behavior)
{
case CachingBehaviorPrivate:
MakeUncacheable(pHttpResponse);
break;
case CachingBehaviorConditional:
MakeConditionallyCacheable(pHttpResponse);
break;
case CachingBehaviorPublic:
MakeCacheable(pHttpResponse);
break;
}
}
return RQ_NOTIFICATION_CONTINUE;
}
REQUEST_NOTIFICATION_STATUS
CMyHttpModule::OnBeginRequest(
IN IHttpContext * pHttpContext,
IN IHttpEventProvider * pProvider
)
{
HRESULT hr = S_OK;
IHttpRequest* pRequest = NULL;
MODSECURITY_STORED_CONTEXT* pConfig = NULL;
UNREFERENCED_PARAMETER ( pProvider );
EnterCriticalSection(&m_csLock);
if ( pHttpContext == NULL )
{
hr = E_UNEXPECTED;
goto Finished;
}
pRequest = pHttpContext->GetRequest();
if ( pRequest == NULL )
{
hr = E_UNEXPECTED;
goto Finished;
}
hr = MODSECURITY_STORED_CONTEXT::GetConfig(pHttpContext, &pConfig );
if ( FAILED( hr ) )
{
//hr = E_UNEXPECTED;
hr = S_OK;
goto Finished;
}
// If module is disabled, dont go any further
//
if( pConfig->GetIsEnabled() == false )
{
goto Finished;
}
// every 3 seconds we check for changes in config file
//
DWORD ctime = GetTickCount();
if(pConfig->m_Config == NULL || (ctime - pConfig->m_dwLastCheck) > 3000)
{
char *path;
USHORT pathlen;
hr = pConfig->GlobalWideCharToMultiByte(pConfig->GetPath(), wcslen(pConfig->GetPath()), &path, &pathlen);
if ( FAILED( hr ) )
{
hr = E_UNEXPECTED;
goto Finished;
}
WIN32_FILE_ATTRIBUTE_DATA fdata;
BOOL ret;
ret = GetFileAttributesEx(path, GetFileExInfoStandard, &fdata);
pConfig->m_dwLastCheck = ctime;
if(pConfig->m_Config == NULL || (ret != 0 && (pConfig->m_LastChange.dwLowDateTime != fdata.ftLastWriteTime.dwLowDateTime ||
pConfig->m_LastChange.dwHighDateTime != fdata.ftLastWriteTime.dwHighDateTime)))
{
pConfig->m_LastChange.dwLowDateTime = fdata.ftLastWriteTime.dwLowDateTime;
pConfig->m_LastChange.dwHighDateTime = fdata.ftLastWriteTime.dwHighDateTime;
pConfig->m_Config = modsecGetDefaultConfig();
PCWSTR servpath = pHttpContext->GetApplication()->GetApplicationPhysicalPath();
char *apppath;
USHORT apppathlen;
hr = pConfig->GlobalWideCharToMultiByte((WCHAR *)servpath, wcslen(servpath), &apppath, &apppathlen);
if ( FAILED( hr ) )
{
delete path;
hr = E_UNEXPECTED;
goto Finished;
}
if(path[0] != 0)
{
const char * err = modsecProcessConfig((directory_config *)pConfig->m_Config, path, apppath);
if(err != NULL)
{
WriteEventViewerLog(err, EVENTLOG_ERROR_TYPE);
delete apppath;
delete path;
goto Finished;
}
}
delete apppath;
}
delete path;
}
conn_rec *c;
request_rec *r;
c = modsecNewConnection();
modsecProcessConnection(c);
r = modsecNewRequest(c, (directory_config *)pConfig->m_Config);
// on IIS we force input stream inspection flag, because its absence does not add any performance gain
// it's because on IIS request body must be restored each time it was read
//
modsecSetConfigForIISRequestBody(r);
REQUEST_STORED_CONTEXT *rsc = new REQUEST_STORED_CONTEXT();
rsc->m_pConnRec = c;
rsc->m_pRequestRec = r;
rsc->m_pHttpContext = pHttpContext;
rsc->m_pProvider = pProvider;
pHttpContext->GetModuleContextContainer()->SetModuleContext(rsc, g_pModuleContext);
StoreIISContext(r, rsc);
HTTP_REQUEST *req = pRequest->GetRawHttpRequest();
r->hostname = ConvertUTF16ToUTF8(req->CookedUrl.pHost, req->CookedUrl.HostLength / sizeof(WCHAR), r->pool);
r->path_info = ConvertUTF16ToUTF8(req->CookedUrl.pAbsPath, req->CookedUrl.AbsPathLength / sizeof(WCHAR), r->pool);
if(r->hostname == NULL)
{
if(req->Headers.KnownHeaders[HttpHeaderHost].pRawValue != NULL)
r->hostname = ZeroTerminate(req->Headers.KnownHeaders[HttpHeaderHost].pRawValue,
req->Headers.KnownHeaders[HttpHeaderHost].RawValueLength, r->pool);
}
int port = 0;
char *port_str = NULL;
if(r->hostname != NULL)
{
int k = 0;
char *ptr = (char *)r->hostname;
while(*ptr != 0 && *ptr != ':')
ptr++;
if(*ptr == ':')
{
*ptr = 0;
port_str = ptr + 1;
port = atoi(port_str);
}
}
if(req->CookedUrl.pQueryString != NULL && req->CookedUrl.QueryStringLength > 0)
r->args = ConvertUTF16ToUTF8(req->CookedUrl.pQueryString + 1, (req->CookedUrl.QueryStringLength / sizeof(WCHAR)) - 1, r->pool);
#define _TRANSHEADER(id,str) if(req->Headers.KnownHeaders[id].pRawValue != NULL) \
{\
apr_table_setn(r->headers_in, str, \
ZeroTerminate(req->Headers.KnownHeaders[id].pRawValue, req->Headers.KnownHeaders[id].RawValueLength, r->pool)); \
}
_TRANSHEADER(HttpHeaderCacheControl, "Cache-Control");
_TRANSHEADER(HttpHeaderConnection, "Connection");
_TRANSHEADER(HttpHeaderDate, "Date");
_TRANSHEADER(HttpHeaderKeepAlive, "Keep-Alive");
_TRANSHEADER(HttpHeaderPragma, "Pragma");
_TRANSHEADER(HttpHeaderTrailer, "Trailer");
_TRANSHEADER(HttpHeaderTransferEncoding, "Transfer-Encoding");
_TRANSHEADER(HttpHeaderUpgrade, "Upgrade");
_TRANSHEADER(HttpHeaderVia, "Via");
_TRANSHEADER(HttpHeaderWarning, "Warning");
_TRANSHEADER(HttpHeaderAllow, "Allow");
_TRANSHEADER(HttpHeaderContentLength, "Content-Length");
_TRANSHEADER(HttpHeaderContentType, "Content-Type");
_TRANSHEADER(HttpHeaderContentEncoding, "Content-Encoding");
_TRANSHEADER(HttpHeaderContentLanguage, "Content-Language");
_TRANSHEADER(HttpHeaderContentLocation, "Content-Location");
_TRANSHEADER(HttpHeaderContentMd5, "Content-Md5");
_TRANSHEADER(HttpHeaderContentRange, "Content-Range");
_TRANSHEADER(HttpHeaderExpires, "Expires");
_TRANSHEADER(HttpHeaderLastModified, "Last-Modified");
_TRANSHEADER(HttpHeaderAccept, "Accept");
_TRANSHEADER(HttpHeaderAcceptCharset, "Accept-Charset");
_TRANSHEADER(HttpHeaderAcceptEncoding, "Accept-Encoding");
_TRANSHEADER(HttpHeaderAcceptLanguage, "Accept-Language");
_TRANSHEADER(HttpHeaderAuthorization, "Authorization");
_TRANSHEADER(HttpHeaderCookie, "Cookie");
_TRANSHEADER(HttpHeaderExpect, "Expect");
_TRANSHEADER(HttpHeaderFrom, "From");
_TRANSHEADER(HttpHeaderHost, "Host");
_TRANSHEADER(HttpHeaderIfMatch, "If-Match");
_TRANSHEADER(HttpHeaderIfModifiedSince, "If-Modified-Since");
_TRANSHEADER(HttpHeaderIfNoneMatch, "If-None-Match");
_TRANSHEADER(HttpHeaderIfRange, "If-Range");
_TRANSHEADER(HttpHeaderIfUnmodifiedSince, "If-Unmodified-Since");
_TRANSHEADER(HttpHeaderMaxForwards, "Max-Forwards");
_TRANSHEADER(HttpHeaderProxyAuthorization, "Proxy-Authorization");
_TRANSHEADER(HttpHeaderReferer, "Referer");
_TRANSHEADER(HttpHeaderRange, "Range");
_TRANSHEADER(HttpHeaderTe, "TE");
_TRANSHEADER(HttpHeaderTranslate, "Translate");
_TRANSHEADER(HttpHeaderUserAgent, "User-Agent");
#undef _TRANSHEADER
for(int i = 0; i < req->Headers.UnknownHeaderCount; i++)
{
apr_table_setn(r->headers_in,
ZeroTerminate(req->Headers.pUnknownHeaders[i].pName, req->Headers.pUnknownHeaders[i].NameLength, r->pool),
ZeroTerminate(req->Headers.pUnknownHeaders[i].pRawValue, req->Headers.pUnknownHeaders[i].RawValueLength, r->pool));
}
r->content_encoding = apr_table_get(r->headers_in, "Content-Encoding");
r->content_type = apr_table_get(r->headers_in, "Content-Type");
const char *lng = apr_table_get(r->headers_in, "Content-Languages");
if(lng != NULL)
{
r->content_languages = apr_array_make(r->pool, 1, sizeof(const char *));
*(const char **)apr_array_push(r->content_languages) = lng;
}
switch(req->Verb)
{
case HttpVerbUnparsed:
case HttpVerbUnknown:
case HttpVerbInvalid:
case HttpVerbTRACK: // used by Microsoft Cluster Server for a non-logged trace
case HttpVerbSEARCH:
default:
r->method = "INVALID";
r->method_number = M_INVALID;
break;
case HttpVerbOPTIONS:
r->method = "OPTIONS";
r->method_number = M_OPTIONS;
break;
case HttpVerbGET:
case HttpVerbHEAD:
r->method = "GET";
r->method_number = M_GET;
break;
case HttpVerbPOST:
r->method = "POST";
r->method_number = M_POST;
break;
case HttpVerbPUT:
r->method = "PUT";
r->method_number = M_PUT;
break;
case HttpVerbDELETE:
r->method = "DELETE";
r->method_number = M_DELETE;
break;
case HttpVerbTRACE:
r->method = "TRACE";
r->method_number = M_TRACE;
break;
case HttpVerbCONNECT:
r->method = "CONNECT";
r->method_number = M_CONNECT;
break;
case HttpVerbMOVE:
r->method = "MOVE";
r->method_number = M_MOVE;
break;
case HttpVerbCOPY:
r->method = "COPY";
r->method_number = M_COPY;
break;
case HttpVerbPROPFIND:
r->method = "PROPFIND";
r->method_number = M_PROPFIND;
break;
case HttpVerbPROPPATCH:
r->method = "PROPPATCH";
r->method_number = M_PROPPATCH;
break;
case HttpVerbMKCOL:
r->method = "MKCOL";
r->method_number = M_MKCOL;
break;
case HttpVerbLOCK:
r->method = "LOCK";
r->method_number = M_LOCK;
break;
case HttpVerbUNLOCK:
r->method = "UNLOCK";
r->method_number = M_UNLOCK;
break;
}
if(HTTP_EQUAL_VERSION(req->Version, 0, 9))
r->protocol = "HTTP/0.9";
else if(HTTP_EQUAL_VERSION(req->Version, 1, 0))
r->protocol = "HTTP/1.0";
else
r->protocol = "HTTP/1.1";
r->request_time = apr_time_now();
r->parsed_uri.scheme = "http";
r->parsed_uri.path = r->path_info;
r->parsed_uri.hostname = (char *)r->hostname;
r->parsed_uri.is_initialized = 1;
r->parsed_uri.port = port;
r->parsed_uri.port_str = port_str;
r->parsed_uri.query = r->args;
r->parsed_uri.dns_looked_up = 0;
r->parsed_uri.dns_resolved = 0;
r->parsed_uri.password = NULL;
r->parsed_uri.user = NULL;
r->parsed_uri.fragment = NULL;
r->unparsed_uri = ZeroTerminate(req->pRawUrl, req->RawUrlLength, r->pool);
r->uri = r->unparsed_uri;
r->the_request = (char *)apr_palloc(r->pool, strlen(r->method) + 1 + req->RawUrlLength + 1 + strlen(r->protocol) + 1);
strcpy(r->the_request, r->method);
strcat(r->the_request, " ");
strcat(r->the_request, r->uri);
strcat(r->the_request, " ");
strcat(r->the_request, r->protocol);
HTTP_REQUEST_ID httpRequestID;
char *pszValue = (char *)apr_palloc(r->pool, 24);
httpRequestID = pRequest->GetRawHttpRequest()->RequestId;
_ui64toa(httpRequestID, pszValue, 10);
apr_table_setn(r->subprocess_env, "UNIQUE_ID", pszValue);
PSOCKADDR pAddr = pRequest->GetRemoteAddress();
#if AP_SERVER_MAJORVERSION_NUMBER > 1 && AP_SERVER_MINORVERSION_NUMBER < 3
c->remote_addr = CopySockAddr(r->pool, pAddr);
c->remote_ip = GetIpAddr(r->pool, pAddr);
#else
c->client_addr = CopySockAddr(r->pool, pAddr);
c->client_ip = GetIpAddr(r->pool, pAddr);
#endif
c->remote_host = NULL;
int status = modsecProcessRequest(r);
if(status != DECLINED)
{
pHttpContext->GetResponse()->SetStatus(status, "ModSecurity Action");
pHttpContext->SetRequestHandled();
hr = E_FAIL;
goto Finished;
}
Finished:
LeaveCriticalSection(&m_csLock);
if ( FAILED( hr ) )
{
return RQ_NOTIFICATION_FINISH_REQUEST;
}
return RQ_NOTIFICATION_CONTINUE;
}
REQUEST_NOTIFICATION_STATUS CIISxpressHttpModule::OnSendResponse(IN IHttpContext* pHttpContext, IN ISendResponseProvider* pProvider)
{
const TCHAR* const pszMethodName = __FUNCTIONT__;
// only proceed if filter is enabled
if (m_Config.GetEnabled() == false)
{
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_ENH, pszMethodName, pHttpContext, _T("module is disabled\n"));
PerfCountersAddRejectedResponse(IISxpressNativePerf::FilterDisabled);
return RQ_NOTIFICATION_CONTINUE;
}
IHttpRequest* pHttpRequest = pHttpContext->GetRequest();
if (pHttpRequest == NULL)
{
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_ENH, pszMethodName, pHttpContext, _T("GetRequest() returned NULL\n"));
PerfCountersAddRejectedResponse(IISxpressNativePerf::Internal);
return RQ_NOTIFICATION_CONTINUE;
}
IHttpResponse* pHttpResponse = pHttpContext->GetResponse();
if (pHttpResponse == NULL)
{
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_ENH, pszMethodName, pHttpContext, _T("GetResponse() returned NULL\n"));
PerfCountersAddRejectedResponse(IISxpressNativePerf::Internal);
return RQ_NOTIFICATION_CONTINUE;
}
const HTTP_REQUEST* pRawRequest = pHttpRequest->GetRawHttpRequest();
if (pRawRequest == NULL)
{
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_ENH, pszMethodName, pHttpContext, _T("GetRawHttpRequest() returned NULL\n"));
PerfCountersAddRejectedResponse(IISxpressNativePerf::Internal);
return RQ_NOTIFICATION_CONTINUE;
}
const HTTP_RESPONSE* pRawResponse = pHttpResponse->GetRawHttpResponse();
if (pRawResponse == NULL)
{
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_ENH, pszMethodName, pHttpContext, _T("GetRawHttpResponse() returned NULL\n"));
PerfCountersAddRejectedResponse(IISxpressNativePerf::Internal);
return RQ_NOTIFICATION_CONTINUE;
}
// we only handle GET or POST (if POST handling is enabled)
if (pRawRequest->Verb != HttpVerbGET && !(pRawRequest->Verb == HttpVerbPOST && m_Config.HandlePOSTResponses()))
{
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_ENH, pszMethodName, pHttpContext, _T("request was not GET or POST\n"));
PerfCountersAddRejectedResponse(IISxpressNativePerf::RequestMethod);
return RQ_NOTIFICATION_CONTINUE;
}
// only handle status code 200
if (pRawResponse->StatusCode != 200)
{
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_ENH, pszMethodName, pHttpContext, _T("response code is not 200 (%u)\n"), pRawResponse->StatusCode);
PerfCountersAddRejectedResponse(IISxpressNativePerf::ResponseCode);
return RQ_NOTIFICATION_CONTINUE;
}
// determine if the request came from localhost
if (m_Config.GetCompressLocalhost() == false && IsUserLocalhost(pRawRequest) == true)
{
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_ENH, pszMethodName, pHttpContext,_T("localhost is disabled\n"));
PerfCountersAddRejectedResponse(IISxpressNativePerf::LocalhostDisabled);
return RQ_NOTIFICATION_CONTINUE;
}
// ***********************************************************************************************************************************
const char* pszUserAgent = EnsureNotNull(pHttpRequest->GetHeader(HttpHeaderUserAgent));
bool excludedUserAgent = false;
if (m_Config.GetUserAgentExclusionEnabled())
{
DWORD dwUserAgentCacheCookie = m_Config.GetLoadCookie();
if (!m_UserAgentCache.GetUserAgentState(dwUserAgentCacheCookie, pszUserAgent, excludedUserAgent))
{
HttpUserAgent::UserAgentProducts<std::string> agent;
if (agent.ParseUserAgentString(pszUserAgent) == S_OK)
{
const HttpUserAgent::RuleUserAgents<std::string>& ruleAgents = m_Config.GetExcludedUserAgents();
if (ruleAgents.Compare(agent))
{
excludedUserAgent = true;
}
m_UserAgentCache.AddUserAgentState(dwUserAgentCacheCookie, pszUserAgent, excludedUserAgent);
}
}
}
if (excludedUserAgent)
{
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_ENH, pszMethodName, pHttpContext, _T("the user agent '%s' has been excluded\n"), pszUserAgent);
PerfCountersAddRejectedResponse(IISxpressNativePerf::NeverRuleMatch);
return RQ_NOTIFICATION_CONTINUE;
}
// ***********************************************************************************************************************************
// we must have only one chunk and data from memory or file
if (pRawResponse->EntityChunkCount == 0)
{
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_ENH, pszMethodName, pHttpContext,_T("can't convert multi-entity buffer, incoming buffer is zero length\n"));
PerfCountersAddRejectedResponse(IISxpressNativePerf::InvalidContentLength);
return RQ_NOTIFICATION_CONTINUE;
}
else if (pRawResponse->EntityChunkCount != 1)
{
// turn the multi-chunk response into a single chunk - NB. the response
// must all be in memory
if (MakeResponseSingleEntityBlock(pHttpContext, pHttpResponse, pRawResponse) == false)
{
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_ENH, pszMethodName, pHttpContext,_T("can't convert multi-entity buffer\n"));
PerfCountersAddRejectedResponse(IISxpressNativePerf::MemoryAllocationFailed);
return RQ_NOTIFICATION_CONTINUE;
}
}
else if (pRawResponse->pEntityChunks->DataChunkType != HttpDataChunkFromMemory &&
pRawResponse->pEntityChunks->DataChunkType != HttpDataChunkFromFileHandle)
{
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_ENH, pszMethodName, pHttpContext,_T("response isn't HttpDataChunkFromMemory or HttpDataChunkFromFileHandle\n"));
PerfCountersAddRejectedResponse(IISxpressNativePerf::Internal);
return RQ_NOTIFICATION_CONTINUE;
}
PHTTP_DATA_CHUNK pEntityChunk = pRawResponse->pEntityChunks;
if (pEntityChunk == NULL)
{
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_ENH, pszMethodName, pHttpContext, _T("the response does not contain any data\n"));
PerfCountersAddRejectedResponse(IISxpressNativePerf::Internal);
return RQ_NOTIFICATION_CONTINUE;
}
// TODO: review max size here
// we don't handle non-zero starting offsets or very large files (>250MB)
if (pEntityChunk->DataChunkType == HttpDataChunkFromFileHandle &&
(pEntityChunk->FromFileHandle.ByteRange.StartingOffset.QuadPart > 0 ||
pEntityChunk->FromFileHandle.ByteRange.Length.QuadPart > (250 * 1024 * 1024)))
{
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_ENH, pszMethodName, pHttpContext, _T("response has offset > 0 or is too big\n"));
PerfCountersAddRejectedResponse(IISxpressNativePerf::Internal);
return RQ_NOTIFICATION_CONTINUE;
}
PCSTR pszContentEncoding = pHttpResponse->GetHeader(HttpHeaderContentEncoding);
if (pszContentEncoding != NULL && pszContentEncoding[0] != '\0')
{
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_ENH, pszMethodName, pHttpContext, _T("response already has content encoding\n"));
PerfCountersAddRejectedResponse(IISxpressNativePerf::AlreadyEncoded);
return RQ_NOTIFICATION_CONTINUE;
}
PCSTR pszTransferEncoding = pHttpResponse->GetHeader(HttpHeaderTransferEncoding);
if (pszTransferEncoding != NULL && pszTransferEncoding[0] != '\0')
{
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_ENH, pszMethodName, pHttpContext, _T("response already has transfer encoding\n"));
PerfCountersAddRejectedResponse(IISxpressNativePerf::AlreadyEncoded);
return RQ_NOTIFICATION_CONTINUE;
}
USHORT nContentTypeLength = 0;
PCSTR pszContentType = pHttpResponse->GetHeader(HttpHeaderContentType, &nContentTypeLength);
if (pszContentType == NULL || nContentTypeLength == 0)
{
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_ENH, pszMethodName, pHttpContext, _T("GetHeader(HttpHeaderContentType) returned NULL\n"));
PerfCountersAddRejectedResponse(IISxpressNativePerf::MissingContentType);
return RQ_NOTIFICATION_CONTINUE;
}
USHORT nLastModifiedLength = 0;
PCSTR pszLastModified = pHttpResponse->GetHeader(HttpHeaderLastModified, &nLastModifiedLength);
// ***********************************************************************
USHORT nAcceptEncodingLength = 0;
PCSTR pszAcceptEncoding = pHttpRequest->GetHeader(HttpHeaderAcceptEncoding, &nAcceptEncodingLength);
if (pszAcceptEncoding == NULL || nAcceptEncodingLength == 0 ||
(strstr(pszAcceptEncoding, "deflate") == NULL && strstr(pszAcceptEncoding, "gzip") == NULL && strstr(pszAcceptEncoding, "bzip2") == NULL))
{
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_ENH, pszMethodName, pHttpContext, _T("the client does not accept compressed responses\n"));
PerfCountersAddRejectedResponse(IISxpressNativePerf::IncompatibleClient);
return RQ_NOTIFICATION_CONTINUE;
}
// ***********************************************************************
const WCHAR* pszScriptTranslated = pHttpContext->GetScriptTranslated();
if (pszScriptTranslated == NULL)
{
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_ENH, pszMethodName, pHttpContext, _T("GetScriptTranslated() returned NULL\n"));
PerfCountersAddRejectedResponse(IISxpressNativePerf::Internal);
return RQ_NOTIFICATION_CONTINUE;
}
// get the url
CAtlStringA sScriptTranslated(pszScriptTranslated);
// get the site id
CAtlStringA sInstanceId;
sInstanceId.Format("%u", pHttpRequest->GetSiteId());
// get the server name
PCSTR pszServerName = NULL;
DWORD dwServerNameLength = 0;
pHttpContext->GetServerVariable("SERVER_NAME", &pszServerName, &dwServerNameLength);
if (pszServerName == NULL || dwServerNameLength == 0)
{
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_ENH, pszMethodName, pHttpContext, _T("GetServerVariable(\"SERVER_NAME\") returned NULL\n"));
PerfCountersAddRejectedResponse(IISxpressNativePerf::Internal);
return RQ_NOTIFICATION_CONTINUE;
}
// get the server port
PCSTR pszServerPort = NULL;
DWORD dwServerPortLength = 0;
pHttpContext->GetServerVariable("SERVER_PORT", &pszServerPort, &dwServerPortLength);
if (pszServerPort == NULL || dwServerPortLength == 0)
{
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_ENH, pszMethodName, pHttpContext, _T("GetServerVariable(\"SERVER_PORT\") returned NULL\n"));
PerfCountersAddRejectedResponse(IISxpressNativePerf::Internal);
return RQ_NOTIFICATION_CONTINUE;
}
DWORD dwContentLength = 0;
if (pEntityChunk->DataChunkType == HttpDataChunkFromMemory)
{
dwContentLength = pRawResponse->pEntityChunks->FromMemory.BufferLength;
}
else if (pEntityChunk->DataChunkType == HttpDataChunkFromFileHandle)
{
dwContentLength = pEntityChunk->FromFileHandle.ByteRange.Length.LowPart;
}
else
{
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_ENH, pszMethodName, pHttpContext, _T("the DataChunkType (%u) is not supported\n"), pEntityChunk->DataChunkType);
PerfCountersAddRejectedResponse(IISxpressNativePerf::Internal);
return RQ_NOTIFICATION_CONTINUE;
}
IISInfo iisinfo;
iisinfo.pszInstanceId = sInstanceId;
iisinfo.pszServerName = pszServerName;
iisinfo.pszServerPort = pszServerPort;
iisinfo.pszURLMapPath = sScriptTranslated;
if (m_Config.GetDebugEnabled() || m_Config.GetLoggingLevel() >= IISXPRESS_LOGGINGLEVEL_ENH)
{
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_ENH, pszMethodName, pHttpContext, _T("IIS: server name='%hs'\n"), pszServerName);
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_ENH, pszMethodName, pHttpContext, _T("IIS: server port='%hs'\n"), pszServerPort);
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_ENH, pszMethodName, pHttpContext, _T("IIS: instance id='%hs'\n"), sInstanceId);
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_ENH, pszMethodName, pHttpContext, _T("IIS: URL map path='%hs'\n"), sScriptTranslated);
}
// ***********************************************************************
const WCHAR* pszURI = pHttpContext->GetScriptName();
if (pszURI == NULL)
{
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_ENH, pszMethodName, pHttpContext, _T("GetScriptName() returned NULL\n"));
PerfCountersAddRejectedResponse(IISxpressNativePerf::Internal);
return RQ_NOTIFICATION_CONTINUE;
}
// get the uri
CAtlStringA sURI(pszURI);
// get the query string
CAtlStringA sQueryString;
if (pRawRequest->CookedUrl.pQueryString != NULL)
{
sQueryString = pRawRequest->CookedUrl.pQueryString + 1;
}
// get the remote address
// TODO: consider using a cache lookup here
CAtlStringA sRemoteAddress;
if (pRawRequest != NULL && pRawRequest->Address.pRemoteAddress != NULL)
{
if (pRawRequest->Address.pRemoteAddress->sa_family == AF_INET)
{
struct sockaddr_in* paddrin = (struct sockaddr_in*) pRawRequest->Address.pRemoteAddress;
// TODO: make this a bit more efficient
sRemoteAddress.Format("%u.%u.%u.%u",
(unsigned) paddrin->sin_addr.S_un.S_un_b.s_b1,
(unsigned) paddrin->sin_addr.S_un.S_un_b.s_b2,
(unsigned) paddrin->sin_addr.S_un.S_un_b.s_b3,
(unsigned) paddrin->sin_addr.S_un.S_un_b.s_b4);
}
else if (pRawRequest->Address.pRemoteAddress->sa_family == AF_INET6)
{
SOCKADDR_IN6* paddrin = (SOCKADDR_IN6*) pRawRequest->Address.pRemoteAddress;
// TODO: make this a bit more efficient
sRemoteAddress.Format("%0x:%0x:%0x:%0x:%0x:%0x:%0x:%0x",
::htons(paddrin->sin6_addr.u.Word[0]), ::htons(paddrin->sin6_addr.u.Word[1]),
::htons(paddrin->sin6_addr.u.Word[2]), ::htons(paddrin->sin6_addr.u.Word[3]),
::htons(paddrin->sin6_addr.u.Word[4]), ::htons(paddrin->sin6_addr.u.Word[5]),
::htons(paddrin->sin6_addr.u.Word[6]), ::htons(paddrin->sin6_addr.u.Word[7]));
}
}
RequestInfo requestinfo;
requestinfo.pszAcceptEncoding = pszAcceptEncoding;
requestinfo.pszHostname = EnsureNotNull(pHttpRequest->GetHeader(HttpHeaderHost));
requestinfo.pszQueryString = sQueryString;
requestinfo.pszRemoteAddress = sRemoteAddress;
requestinfo.pszURI = sURI;
requestinfo.pszUserAgent = pszUserAgent;
if (m_Config.GetDebugEnabled() || m_Config.GetLoggingLevel() >= IISXPRESS_LOGGINGLEVEL_BASIC)
{
char* pszMethod = "Unknown";
switch (pRawRequest->Verb)
{
case HttpVerbGET: pszMethod = "GET"; break;
case HttpVerbPOST: pszMethod = "POST"; break;
}
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_BASIC, pszMethodName, pHttpContext, _T("REQUEST: method='%hs'\n"), pszMethod);
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_BASIC, pszMethodName, pHttpContext, _T("REQUEST: hostname='%hs'\n"), requestinfo.pszHostname);
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_BASIC, pszMethodName, pHttpContext, _T("REQUEST: user agent='%hs'\n"), requestinfo.pszUserAgent);
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_BASIC, pszMethodName, pHttpContext, _T("REQUEST: URI='%hs'\n"), requestinfo.pszURI);
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_BASIC, pszMethodName, pHttpContext, _T("REQUEST: accept-encoding='%hs'\n"), requestinfo.pszAcceptEncoding);
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_BASIC, pszMethodName, pHttpContext, _T("REQUEST: client address='%hs'\n"), requestinfo.pszRemoteAddress);
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_BASIC, pszMethodName, pHttpContext, _T("REQUEST: query string='%hs'\n"), requestinfo.pszQueryString);
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_BASIC, pszMethodName, pHttpContext, _T("REQUEST: content-type='%hs'\n"), pszContentType);
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_BASIC, pszMethodName, pHttpContext, _T("REQUEST: content-length=%u\n"), dwContentLength);
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_BASIC, pszMethodName, pHttpContext, _T("REQUEST: response code=%u\n"), pRawResponse->StatusCode);
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_BASIC, pszMethodName, pHttpContext, _T("REQUEST: last-modified='%hs'\n"), pszLastModified != NULL ? pszLastModified : "null");
}
// ***********************************************************************
ResponseInfo responseinfo;
responseinfo.dwContentLength = dwContentLength;
responseinfo.dwResponseCode = pRawResponse->StatusCode;
responseinfo.pszContentType = pszContentType;
responseinfo.pszLastModified = pszLastModified;
// get a connection to the server from the GIT (if it is connected)
CComPtr<IIISxpressHTTPRequest> pIISxpressHTTPRequest;
if (m_pGlobalIISxpressHTTPRequest.GetCookie() != 0)
{
m_pGlobalIISxpressHTTPRequest.CopyTo(&pIISxpressHTTPRequest);
}
if (pIISxpressHTTPRequest == NULL)
{
// revoke the pointer in the GIT
m_pGlobalIISxpressHTTPRequest.Revoke();
// try to connect to the server
if (GetHTTPRequestObject(pHttpContext, &pIISxpressHTTPRequest) == false || pIISxpressHTTPRequest == NULL)
{
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_ENH, pszMethodName, pHttpContext, _T("unable to connect to server\n"));
PerfCountersAddRejectedResponse(IISxpressNativePerf::NoCompressionServer);
return RQ_NOTIFICATION_CONTINUE;
}
// store the resulting pointer in the GIT
m_pGlobalIISxpressHTTPRequest = pIISxpressHTTPRequest;
}
const DWORD dwTimerLoggingLevel = IISXPRESS_LOGGINGLEVEL_FULL;
bool useTimer = (m_Config.GetDebugEnabled() || m_Config.GetLoggingLevel() >= dwTimerLoggingLevel);
// start timer
__int64 nStartTimer = useTimer ? g_Timer.GetMicroSecTimerCount() : 0;
CAtlStringA sCacheKey;
if (m_nCacheEnabled != 0)
{
// update the cache perf counters based on the cache cookie
PerfCountersUpdateCacheStatus(false);
if (pszLastModified != NULL && sQueryString.GetLength() == 0)
{
ATLASSERT(pszAcceptEncoding != NULL);
// create the unique key for the response
ResponseCache::CreateResponseCacheKey(
sInstanceId, sInstanceId.GetLength(),
sURI, sURI.GetLength(),
responseinfo.pszContentType, nContentTypeLength,
dwContentLength,
pszLastModified, nLastModifiedLength,
pszAcceptEncoding, nAcceptEncodingLength,
sCacheKey);
// try to get a compressed response from the cache
HCACHEITEM hCacheItem = NULL;
HRESULT hr = m_ResponseCache.LookupEntry(sCacheKey, &hCacheItem);
if (hr == S_OK)
{
// get the item from the cache
ResponseCacheItem* pCacheItem;
DWORD dwCacheItemSize = 0;
hr = m_ResponseCache.GetData(hCacheItem, (void**) &pCacheItem, &dwCacheItemSize);
void* pBuffer = pHttpContext->AllocateRequestMemory(pCacheItem->dwContentLength);
if (pBuffer != NULL)
{
pHttpResponse->SetHeader(HttpHeaderContentLength, pCacheItem->sContentLength,
(USHORT) pCacheItem->sContentLength.GetLength(), TRUE);
pHttpResponse->SetHeader(HttpHeaderContentEncoding, pCacheItem->sContentEncoding,
(USHORT) pCacheItem->sContentEncoding.GetLength(), TRUE);
pEntityChunk->DataChunkType = HttpDataChunkFromMemory;
pEntityChunk->FromMemory.pBuffer = pBuffer;
pEntityChunk->FromMemory.BufferLength = pCacheItem->dwContentLength;
memcpy(pEntityChunk->FromMemory.pBuffer, pCacheItem->pbyData, pCacheItem->dwContentLength);
hr = m_ResponseCache.ReleaseEntry(hCacheItem);
pIISxpressHTTPRequest->NotifyCacheHit(&iisinfo, &requestinfo, &responseinfo, pCacheItem->dwContentLength);
PerfCountersAddCachedResponse(dwContentLength, pCacheItem->dwContentLength);
// calculate timer duration
__int64 nEndTimer = useTimer ? g_Timer.GetMicroSecTimerCount() : 0;
__int64 nInterval = nEndTimer - nStartTimer;
AppendLogMessage(dwTimerLoggingLevel, pszMethodName, pHttpContext, _T("response resolved from cache, call took %I64d us\n"), nInterval);
return RQ_NOTIFICATION_CONTINUE;
}
// we failed to handle the cached response, so just proceed as normal (we need to free the
// cache entry tho)
hr = m_ResponseCache.ReleaseEntry(hCacheItem);
}
}
}
DWORD dwFilterContext = 0;
HRESULT hr = pIISxpressHTTPRequest->OnSendResponse(&iisinfo, &requestinfo, &responseinfo, &dwFilterContext);
// calculate timer duration
__int64 nEndTimer = useTimer ? g_Timer.GetMicroSecTimerCount() : 0;
__int64 nInterval = nEndTimer - nStartTimer;
if (FAILED(hr) == TRUE)
{
// get the facility code of the failure
DWORD dwFacility = HRESULT_FACILITY(hr);
// if it isn't NULL or ITF then assume the server is now invalid
if (dwFacility != FACILITY_NULL && dwFacility != FACILITY_ITF)
{
// the GIT is invalid, dump it
m_pGlobalIISxpressHTTPRequest.Revoke();
// the server connection is invalid, dump it
pIISxpressHTTPRequest = NULL;
}
}
AppendLogMessage(dwTimerLoggingLevel, pszMethodName, pHttpContext, _T("OnSendResponse() returns 0x%08x, call took %I64d us\n"), hr, nInterval);
if (FAILED(hr) == TRUE)
{
// TODO: need to handle generic HRs
PerfCountersAddRejectedResponse(hr);
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_BASIC, pszMethodName, pHttpContext, _T("won't handle response (0x%08x)\n"), hr);
return RQ_NOTIFICATION_CONTINUE;
}
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_BASIC, pszMethodName, pHttpContext, _T("will handle response (0x%08x)\n"), hr);
if (pEntityChunk->DataChunkType == HttpDataChunkFromFileHandle)
{
DWORD dwAllocatedBlockSize = 0;
BYTE* pbyData = AllocateMemoryBlockForOverlappedIO(pHttpContext, dwContentLength, dwAllocatedBlockSize);
if (pbyData != NULL)
{
// we are about to perform overlapped IO, so setup the OVERLAPPED struct into a default state
OVERLAPPED overlapped;
memset(&overlapped, 0, sizeof(overlapped));
HandleObject FileEvent;
bool bHandleFromPool = m_hEventHandlePool.GetHandleObject(FileEvent);
// if we failed to get a handle from the pool then we need to make one
if (bHandleFromPool == false)
{
HANDLE hReadOK = ::CreateEvent(NULL, TRUE, FALSE, NULL);
FileEvent = HandleObject(hReadOK);
}
// use the event handle so we can track the IO completion
overlapped.hEvent = FileEvent;
// ask for a file read (asynchronous)
DWORD dwStatus = ::ReadFile(pEntityChunk->FromFileHandle.FileHandle, pbyData, dwAllocatedBlockSize, NULL, &overlapped);
// wait for the IO to complete (NB. don't really use this since INFINITE can block forever)
::WaitForSingleObject(FileEvent, INFINITE);
// we must return the handle (if it came from the pool)
if (bHandleFromPool == true)
{
m_hEventHandlePool.ReturnHandleObject(FileEvent);
}
pEntityChunk->DataChunkType = HttpDataChunkFromMemory;
pEntityChunk->FromMemory.BufferLength = dwContentLength;
pEntityChunk->FromMemory.pBuffer = pbyData;
}
else
{
hr = E_OUTOFMEMORY;
}
}
else if (pEntityChunk->DataChunkType == HttpDataChunkFromMemory)
{
// allocate the memory block
BYTE* pbyData = (BYTE*) pHttpContext->AllocateRequestMemory(dwContentLength);
if (pbyData != NULL)
{
// copy the response data
memcpy(pbyData, pEntityChunk->FromMemory.pBuffer, pEntityChunk->FromMemory.BufferLength);
// change the buffer pointer
pEntityChunk->FromMemory.pBuffer = pbyData;
}
else
{
hr = E_OUTOFMEMORY;
}
}
// allocate the response stream
CComPtr<IStream> pStream;
CComObject<CResponseStream>* pResponseStream = NULL;
if (hr == S_OK)
{
hr = CComObject<CResponseStream>::CreateInstance(&pResponseStream);
if (hr == S_OK)
{
pStream = pResponseStream;
}
}
// catch any memory issues
if (FAILED(hr) == TRUE)
{
// abort the compression
pIISxpressHTTPRequest->AbortRequest(dwFilterContext);
// TODO: need to handle generic HRs
PerfCountersAddRejectedResponse(hr);
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_BASIC, pszMethodName, pHttpContext, _T("won't handle response (0x%08x)\n"), hr);
return RQ_NOTIFICATION_CONTINUE;
}
pResponseStream->AttachBuffer(pEntityChunk->FromMemory.pBuffer, dwContentLength, 0);
char szContentEncoding[32] = "";
hr = pIISxpressHTTPRequest->OnSendRawData(dwFilterContext, pStream, dwContentLength, FALSE, (signed char*) szContentEncoding, _countof(szContentEncoding));
if (hr == S_OK)
{
DWORD dwOriginalSize = dwContentLength;
DWORD dwCompressedSize = pResponseStream->GetOffset();
// set the new content length into the header
CAtlStringA sContentLength;
sContentLength.Format("%u", dwCompressedSize);
pHttpResponse->SetHeader(HttpHeaderContentLength, sContentLength, (USHORT) sContentLength.GetLength(), TRUE);
// set the new size into the buffer
pRawResponse->pEntityChunks->FromMemory.BufferLength = dwCompressedSize;
pHttpResponse->SetHeader(HttpHeaderContentEncoding, szContentEncoding, (USHORT) strlen(szContentEncoding), TRUE);
// add the item to the cache if we have a key (it means the data is cachable)
if (dwCompressedSize < dwOriginalSize &&
m_nCacheEnabled != 0 && sCacheKey.GetLength() > 0)
{
ResponseCacheItem* pCacheItem = new ResponseCacheItem();
if (pCacheItem != NULL)
{
pCacheItem->sContentEncoding = szContentEncoding;
pCacheItem->sContentLength = sContentLength;
pCacheItem->dwContentLength = dwCompressedSize;
pCacheItem->pbyData = new BYTE[dwCompressedSize];
if (pCacheItem->pbyData != NULL)
{
// copy the compressed data and add it to the cache
memcpy(pCacheItem->pbyData, pEntityChunk->FromMemory.pBuffer, dwCompressedSize);
m_ResponseCache.Add(sCacheKey, pCacheItem, pCacheItem->dwContentLength, NULL, NULL, NULL, m_ResponseCacheItemDeallocator);
PerfCountersUpdateCacheStatus(true);
}
}
}
PerfCountersAddCompressedResponse(dwContentLength, dwCompressedSize);
// make sure the context is released
hr = pIISxpressHTTPRequest->OnEndOfRequest(dwFilterContext, NULL, 0, FALSE, NULL, 0);
}
else
{
// abort the compression
pIISxpressHTTPRequest->AbortRequest(dwFilterContext);
// TODO: need to handle generic HRs
PerfCountersAddRejectedResponse(hr);
AppendLogMessage(IISXPRESS_LOGGINGLEVEL_BASIC, pszMethodName, pHttpContext, _T("won't handle response (0x%08x)\n"), hr);
}
return RQ_NOTIFICATION_CONTINUE;
}
HRESULT CHttpProtocol::SerializeRequestHeaders(CNodeHttpStoredContext* ctx, void** result, DWORD* resultSize, DWORD* resultLength)
{
HRESULT hr;
PCSTR originalUrl = NULL;
USHORT originalUrlLength;
DWORD remoteHostSize = INET6_ADDRSTRLEN + 1;
char remoteHost[INET6_ADDRSTRLEN + 1];
BOOL addXFF;
char** serverVars;
int serverVarCount;
CheckNull(ctx);
CheckNull(result);
CheckNull(resultSize);
CheckNull(resultLength);
IHttpContext* context = ctx->GetHttpContext();
DWORD bufferLength = CModuleConfiguration::GetInitialRequestBufferSize(context);
DWORD offset = 0;
IHttpRequest* request = context->GetRequest();
HTTP_REQUEST* raw = request->GetRawHttpRequest();
USHORT major, minor;
const int tmpSize = 256;
char tmp[tmpSize];
PCSTR method = request->GetHttpMethod();
ErrorIf(NULL == (*result = context->AllocateRequestMemory(bufferLength)), ERROR_NOT_ENOUGH_MEMORY);
// Determine whether response entity body is to be expected
if (method && 0 == strcmpi("HEAD", method))
{
// HEAD requests do not have response entity body
// http://www.w3.org/Protocols/rfc2616/rfc2616-sec4.html#sec4.4
ctx->SetExpectResponseBody(FALSE);
}
// Request-Line
CheckError(CHttpProtocol::Append(context, method, 0, result, &bufferLength, &offset));
CheckError(CHttpProtocol::Append(context, " ", 1, result, &bufferLength, &offset));
CheckError(CHttpProtocol::Append(context, ctx->GetTargetUrl(), ctx->GetTargetUrlLength(), result, &bufferLength, &offset));
request->GetHttpVersion(&major, &minor);
if (1 == major && 1 == minor)
{
CheckError(CHttpProtocol::Append(context, " HTTP/1.1\r\n", 11, result, &bufferLength, &offset));
}
else if (1 == major && 0 == minor)
{
CheckError(CHttpProtocol::Append(context, " HTTP/1.0\r\n", 11, result, &bufferLength, &offset));
}
else
{
sprintf(tmp, " HTTP/%d.%d\r\n", major, minor);
CheckError(CHttpProtocol::Append(context, tmp, 0, result, &bufferLength, &offset));
}
// Known headers
for (int i = 0; i < HttpHeaderRequestMaximum; i++)
{
if (raw->Headers.KnownHeaders[i].RawValueLength > 0)
{
CheckError(CHttpProtocol::Append(context, CHttpProtocol::httpRequestHeaders[i], 0, result, &bufferLength, &offset));
CheckError(CHttpProtocol::Append(context, ": ", 2, result, &bufferLength, &offset));
CheckError(CHttpProtocol::Append(context, raw->Headers.KnownHeaders[i].pRawValue, raw->Headers.KnownHeaders[i].RawValueLength, result, &bufferLength, &offset));
CheckError(CHttpProtocol::Append(context, "\r\n", 2, result, &bufferLength, &offset));
}
}
// Unknown headers
if (TRUE == (addXFF = CModuleConfiguration::GetEnableXFF(context)))
{
PSOCKADDR addr = request->GetRemoteAddress();
DWORD addrSize = addr->sa_family == AF_INET ? sizeof SOCKADDR_IN : sizeof SOCKADDR_IN6;
ErrorIf(0 != WSAAddressToString(addr, addrSize, NULL, remoteHost, &remoteHostSize), GetLastError());
}
for (int i = 0; i < raw->Headers.UnknownHeaderCount; i++)
{
CheckError(CHttpProtocol::Append(context, raw->Headers.pUnknownHeaders[i].pName, raw->Headers.pUnknownHeaders[i].NameLength, result, &bufferLength, &offset));
CheckError(CHttpProtocol::Append(context, ": ", 2, result, &bufferLength, &offset));
CheckError(CHttpProtocol::Append(context, raw->Headers.pUnknownHeaders[i].pRawValue, raw->Headers.pUnknownHeaders[i].RawValueLength, result, &bufferLength, &offset));
if (addXFF && 15 == raw->Headers.pUnknownHeaders[i].NameLength && 0 == strcmpi("X-Forwarded-For", raw->Headers.pUnknownHeaders[i].pName))
{
// augment existing X-Forwarded-For header
CheckError(CHttpProtocol::Append(context, ", ", 2, result, &bufferLength, &offset));
CheckError(CHttpProtocol::Append(context, remoteHost, remoteHostSize - 1, result, &bufferLength, &offset));
addXFF = FALSE;
}
CheckError(CHttpProtocol::Append(context, "\r\n", 2, result, &bufferLength, &offset));
}
if (addXFF)
{
// add a new X-Forwarded-For header
CheckError(CHttpProtocol::Append(context, "X-Forwarded-For: ", 17, result, &bufferLength, &offset));
CheckError(CHttpProtocol::Append(context, remoteHost, remoteHostSize - 1, result, &bufferLength, &offset));
CheckError(CHttpProtocol::Append(context, "\r\n", 2, result, &bufferLength, &offset));
}
// promote server variables
CheckError(CModuleConfiguration::GetPromoteServerVars(context, &serverVars, &serverVarCount));
while (serverVarCount)
{
serverVarCount--;
PCSTR varValue;
DWORD varValueLength;
if (S_OK == context->GetServerVariable(serverVars[serverVarCount], &varValue, &varValueLength))
{
CheckError(CHttpProtocol::Append(context, "X-iisnode-", 10, result, &bufferLength, &offset));
CheckError(CHttpProtocol::Append(context, serverVars[serverVarCount], 0, result, &bufferLength, &offset));
CheckError(CHttpProtocol::Append(context, ": ", 2, result, &bufferLength, &offset));
CheckError(CHttpProtocol::Append(context, varValue, varValueLength, result, &bufferLength, &offset));
CheckError(CHttpProtocol::Append(context, "\r\n", 2, result, &bufferLength, &offset));
}
}
// CRLF
CheckError(CHttpProtocol::Append(context, "\r\n", 2, result, &bufferLength, &offset));
*resultSize = bufferLength;
*resultLength = offset;
return S_OK;
Error:
if (NULL != result)
{
*result = NULL;
}
if (NULL != resultLength)
{
*resultLength = 0;
}
if (NULL != resultSize)
{
*resultSize = 0;
}
return hr;
}
HRESULT CHttpProtocol::SerializeRequestHeaders(IHttpContext* context, void** result, DWORD* resultSize, DWORD* resultLength)
{
HRESULT hr;
CheckNull(context);
CheckNull(result);
CheckNull(resultSize);
CheckNull(resultLength);
DWORD bufferLength = CModuleConfiguration::GetInitialRequestBufferSize(context);
DWORD offset = 0;
IHttpRequest* request = context->GetRequest();
HTTP_REQUEST* raw = request->GetRawHttpRequest();
USHORT major, minor;
char tmp[256];
ErrorIf(NULL == (*result = context->AllocateRequestMemory(bufferLength)), ERROR_NOT_ENOUGH_MEMORY);
// Request-Line
CheckError(CHttpProtocol::Append(context, request->GetHttpMethod(), 0, result, &bufferLength, &offset));
CheckError(CHttpProtocol::Append(context, " ", 1, result, &bufferLength, &offset));
CheckError(CHttpProtocol::Append(context, raw->pRawUrl, raw->RawUrlLength, result, &bufferLength, &offset));
request->GetHttpVersion(&major, &minor);
sprintf(tmp, " HTTP/%d.%d\r\n", major, minor);
CheckError(CHttpProtocol::Append(context, tmp, 0, result, &bufferLength, &offset));
// Known headers
for (int i = 0; i < HttpHeaderRequestMaximum; i++)
{
if (raw->Headers.KnownHeaders[i].RawValueLength > 0)
{
CheckError(CHttpProtocol::Append(context, CHttpProtocol::httpRequestHeaders[i], 0, result, &bufferLength, &offset));
CheckError(CHttpProtocol::Append(context, ": ", 2, result, &bufferLength, &offset));
CheckError(CHttpProtocol::Append(context, raw->Headers.KnownHeaders[i].pRawValue, raw->Headers.KnownHeaders[i].RawValueLength, result, &bufferLength, &offset));
CheckError(CHttpProtocol::Append(context, "\r\n", 2, result, &bufferLength, &offset));
}
}
// Unknown headers
for (int i = 0; i < raw->Headers.UnknownHeaderCount; i++)
{
CheckError(CHttpProtocol::Append(context, raw->Headers.pUnknownHeaders[i].pName, raw->Headers.pUnknownHeaders[i].NameLength, result, &bufferLength, &offset));
CheckError(CHttpProtocol::Append(context, ": ", 2, result, &bufferLength, &offset));
CheckError(CHttpProtocol::Append(context, raw->Headers.pUnknownHeaders[i].pRawValue, raw->Headers.pUnknownHeaders[i].RawValueLength, result, &bufferLength, &offset));
CheckError(CHttpProtocol::Append(context, "\r\n", 2, result, &bufferLength, &offset));
}
// CRLF
CheckError(CHttpProtocol::Append(context, "\r\n", 2, result, &bufferLength, &offset));
*resultSize = bufferLength;
*resultLength = offset;
return S_OK;
Error:
if (NULL != result)
{
*result = NULL;
}
if (NULL != resultLength)
{
*resultLength = 0;
}
if (NULL != resultSize)
{
*resultSize = 0;
}
return hr;
}
HRESULT CHttpProtocol::SerializeRequestHeaders(CNodeHttpStoredContext* ctx, void** result, DWORD* resultSize, DWORD* resultLength)
{
HRESULT hr;
PCSTR originalUrl = NULL;
USHORT originalUrlLength;
CheckNull(ctx);
CheckNull(result);
CheckNull(resultSize);
CheckNull(resultLength);
IHttpContext* context = ctx->GetHttpContext();
DWORD bufferLength = CModuleConfiguration::GetInitialRequestBufferSize(context);
DWORD offset = 0;
IHttpRequest* request = context->GetRequest();
HTTP_REQUEST* raw = request->GetRawHttpRequest();
USHORT major, minor;
char tmp[256];
PCSTR method = request->GetHttpMethod();
ErrorIf(NULL == (*result = context->AllocateRequestMemory(bufferLength)), ERROR_NOT_ENOUGH_MEMORY);
// Determine whether response entity body is to be expected
if (method && 0 == strcmpi("HEAD", method))
{
// HEAD requests do not have response entity body
// http://www.w3.org/Protocols/rfc2616/rfc2616-sec4.html#sec4.4
ctx->SetExpectResponseBody(FALSE);
}
// Request-Line
CheckError(CHttpProtocol::Append(context, method, 0, result, &bufferLength, &offset));
CheckError(CHttpProtocol::Append(context, " ", 1, result, &bufferLength, &offset));
CheckError(CHttpProtocol::Append(context, ctx->GetTargetUrl(), ctx->GetTargetUrlLength(), result, &bufferLength, &offset));
request->GetHttpVersion(&major, &minor);
if (1 == major && 1 == minor)
{
CheckError(CHttpProtocol::Append(context, " HTTP/1.1\r\n", 11, result, &bufferLength, &offset));
}
else if (1 == major && 0 == minor)
{
CheckError(CHttpProtocol::Append(context, " HTTP/1.0\r\n", 11, result, &bufferLength, &offset));
}
else
{
sprintf(tmp, " HTTP/%d.%d\r\n", major, minor);
CheckError(CHttpProtocol::Append(context, tmp, 0, result, &bufferLength, &offset));
}
// Known headers
for (int i = 0; i < HttpHeaderRequestMaximum; i++)
{
if (raw->Headers.KnownHeaders[i].RawValueLength > 0)
{
CheckError(CHttpProtocol::Append(context, CHttpProtocol::httpRequestHeaders[i], 0, result, &bufferLength, &offset));
CheckError(CHttpProtocol::Append(context, ": ", 2, result, &bufferLength, &offset));
CheckError(CHttpProtocol::Append(context, raw->Headers.KnownHeaders[i].pRawValue, raw->Headers.KnownHeaders[i].RawValueLength, result, &bufferLength, &offset));
CheckError(CHttpProtocol::Append(context, "\r\n", 2, result, &bufferLength, &offset));
}
}
// Unknown headers
for (int i = 0; i < raw->Headers.UnknownHeaderCount; i++)
{
CheckError(CHttpProtocol::Append(context, raw->Headers.pUnknownHeaders[i].pName, raw->Headers.pUnknownHeaders[i].NameLength, result, &bufferLength, &offset));
CheckError(CHttpProtocol::Append(context, ": ", 2, result, &bufferLength, &offset));
CheckError(CHttpProtocol::Append(context, raw->Headers.pUnknownHeaders[i].pRawValue, raw->Headers.pUnknownHeaders[i].RawValueLength, result, &bufferLength, &offset));
CheckError(CHttpProtocol::Append(context, "\r\n", 2, result, &bufferLength, &offset));
}
// CRLF
CheckError(CHttpProtocol::Append(context, "\r\n", 2, result, &bufferLength, &offset));
*resultSize = bufferLength;
*resultLength = offset;
return S_OK;
Error:
if (NULL != result)
{
*result = NULL;
}
if (NULL != resultLength)
{
*resultLength = 0;
}
if (NULL != resultSize)
{
*resultSize = 0;
}
return hr;
}