mirror of https://github.com/tongzx/nt5src
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
306 lines
8.4 KiB
306 lines
8.4 KiB
//+---------------------------------------------------------------------------
|
|
//
|
|
// Microsoft Windows
|
|
// Copyright (C) Microsoft Corporation, 2000.
|
|
//
|
|
// File: U D H I U T I L . C P P
|
|
//
|
|
// Contents: Implementation of various utility functions used by the
|
|
// UPnP Device Host ISAPI extension
|
|
//
|
|
// Notes:
|
|
//
|
|
// Author: spather 2000/09/8
|
|
//
|
|
//----------------------------------------------------------------------------
|
|
|
|
#include <pch.h>
|
|
#pragma hdrstop
|
|
|
|
#include <httpext.h>
|
|
#include "wininet.h"
|
|
#include "udhiutil.h"
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Function: bSendResponseToClient
|
|
//
|
|
// Purpose: Sends an HTTP response to the originator of a request
|
|
//
|
|
// Arguments:
|
|
// pecb [in] The extension control block for the request
|
|
// pszStatus [in] HTTP status string e.g. "200 OK" or "400 Bad Request"
|
|
// cchHeaders [in] Number of characters in pszHeaders string
|
|
// pszHeaders [in] Headers string e.g. "Content-type: text/html\r\n\r\n"
|
|
// cchBody [in] Number of bytes in pszBody
|
|
// pszBody [in] Response body (may be NULL to send no body)
|
|
//
|
|
// Returns:
|
|
// TRUE if successful
|
|
// FALSE if unsuccessful (call GetLastError() to get error info)
|
|
//
|
|
// Author: spather 2000/09/7
|
|
//
|
|
// Notes:
|
|
// All strings passed in must be NULL terminated.
|
|
// pszHeaders string may contain multiple headers separated by \r\n pairs.
|
|
// pszHeaders string must end in "\r\n\r\n" as required by HTTP
|
|
// If a body is specified at pszBody, the pszHeaders string should contain
|
|
// a Content-Length header.
|
|
//
|
|
BOOL
|
|
bSendResponseToClient(
|
|
IN LPEXTENSION_CONTROL_BLOCK pecb,
|
|
IN LPCSTR pcszStatus,
|
|
IN DWORD cchHeaders,
|
|
IN LPCSTR pcszHeaders,
|
|
IN DWORD cchBody,
|
|
IN LPCSTR pcszBody)
|
|
{
|
|
BOOL bRet = TRUE;
|
|
HSE_SEND_HEADER_EX_INFO HeaderExInfo;
|
|
|
|
AssertSz(pecb,
|
|
"bSendResponseToClient(): NULL pecb");
|
|
AssertSz(pcszStatus,
|
|
"bSendResponseToClient(): NULL pcszStatus");
|
|
AssertSz(pcszHeaders,
|
|
"bSendResponseToClient(): NULL pcszHeaders");
|
|
|
|
BOOL fKeepConn = FALSE;
|
|
|
|
bRet = pecb->ServerSupportFunction(
|
|
pecb->ConnID,
|
|
HSE_REQ_IS_KEEP_CONN,
|
|
&fKeepConn,
|
|
NULL,
|
|
NULL);
|
|
|
|
//
|
|
// Prepare headers.
|
|
//
|
|
|
|
HeaderExInfo.pszStatus = pcszStatus;
|
|
HeaderExInfo.pszHeader = pcszHeaders;
|
|
HeaderExInfo.cchStatus = lstrlenA(pcszStatus);
|
|
HeaderExInfo.cchHeader = cchHeaders;
|
|
HeaderExInfo.fKeepConn = fKeepConn;
|
|
//
|
|
// Send the headers.
|
|
//
|
|
|
|
TraceTag(ttidUDHISAPI,
|
|
"bSendResponseHeaders(): "
|
|
"Sending Status \"%s\" and Headers:\n%s",
|
|
pcszStatus,
|
|
pcszHeaders);
|
|
|
|
|
|
bRet = pecb->ServerSupportFunction(
|
|
pecb->ConnID,
|
|
HSE_REQ_SEND_RESPONSE_HEADER_EX,
|
|
&HeaderExInfo,
|
|
NULL,
|
|
NULL);
|
|
|
|
if (bRet)
|
|
{
|
|
//
|
|
// Send the body if there is one.
|
|
//
|
|
|
|
if (pcszBody)
|
|
{
|
|
DWORD dwBytesToWrite = cchBody;
|
|
|
|
bRet = pecb->WriteClient(pecb->ConnID,
|
|
(LPVOID) pcszBody,
|
|
&dwBytesToWrite,
|
|
HSE_IO_SYNC);
|
|
|
|
if (bRet)
|
|
{
|
|
AssertSz((cchBody == dwBytesToWrite),
|
|
"bSendResponseToClient(): "
|
|
"Didn't write the correct number of bytes");
|
|
}
|
|
else
|
|
{
|
|
TraceLastWin32Error("bSendResponseToClient(): "
|
|
"Failed to send response body");
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
TraceLastWin32Error("bSendResponseToClient(): "
|
|
"Failed to send response headers");
|
|
}
|
|
|
|
TraceTag(ttidUDHISAPI,
|
|
"bSendResponseToClient(): "
|
|
"Exiting - returning %d",
|
|
bRet);
|
|
|
|
return bRet;
|
|
}
|
|
|
|
VOID
|
|
SendSimpleResponse(
|
|
IN LPEXTENSION_CONTROL_BLOCK pecb,
|
|
IN DWORD dwStatusCode)
|
|
{
|
|
BOOL fRet;
|
|
static const CHAR c_szErrorHeaders[] = "\r\n";
|
|
LPSTR szaResponse;
|
|
|
|
switch(dwStatusCode)
|
|
{
|
|
case HTTP_STATUS_OK:
|
|
szaResponse = "200 OK";
|
|
break;
|
|
case HTTP_STATUS_CREATED:
|
|
szaResponse = "201 Created";
|
|
break;
|
|
case HTTP_STATUS_ACCEPTED:
|
|
szaResponse = "202 Accepted";
|
|
break;
|
|
case HTTP_STATUS_NO_CONTENT:
|
|
szaResponse = "204 No Content";
|
|
break;
|
|
|
|
case HTTP_STATUS_AMBIGUOUS:
|
|
szaResponse = "300 Multiple";
|
|
break;
|
|
case HTTP_STATUS_MOVED:
|
|
szaResponse = "301 Moved Permanently";
|
|
break;
|
|
case HTTP_STATUS_REDIRECT:
|
|
szaResponse = "302 Moved Temporarily";
|
|
break;
|
|
case HTTP_STATUS_NOT_MODIFIED:
|
|
szaResponse = "304 Not Modified";
|
|
break;
|
|
|
|
|
|
case HTTP_STATUS_BAD_REQUEST:
|
|
szaResponse = "400 Bad Request";
|
|
break;
|
|
case HTTP_STATUS_DENIED:
|
|
szaResponse = "401 Unauthorized";
|
|
break;
|
|
case HTTP_STATUS_FORBIDDEN:
|
|
szaResponse = "403 Forbidden";
|
|
break;
|
|
case HTTP_STATUS_NOT_FOUND:
|
|
szaResponse = "404 Not Found";
|
|
break;
|
|
case HTTP_STATUS_BAD_METHOD:
|
|
szaResponse = "405 Method Not Allowed";
|
|
break;
|
|
case HTTP_STATUS_LENGTH_REQUIRED:
|
|
szaResponse = "411 The Server Refused to Accept Request Without a Length";
|
|
break;
|
|
case HTTP_STATUS_PRECOND_FAILED:
|
|
szaResponse = "412 Precondition Failed";
|
|
break;
|
|
case HTTP_STATUS_UNSUPPORTED_MEDIA:
|
|
szaResponse = "415 Unsupported Media Type";
|
|
break;
|
|
|
|
|
|
|
|
case HTTP_STATUS_SERVER_ERROR:
|
|
szaResponse = "500 Internal Server Error";
|
|
break;
|
|
case HTTP_STATUS_NOT_SUPPORTED:
|
|
szaResponse = "501 Not Implemented";
|
|
break;
|
|
case HTTP_STATUS_BAD_GATEWAY:
|
|
szaResponse = "502 Bad Gateway";
|
|
break;
|
|
case HTTP_STATUS_SERVICE_UNAVAIL:
|
|
szaResponse = "503 Service Unavailable";
|
|
break;
|
|
|
|
default:
|
|
AssertSz(FALSE, "You must pass in a known HTTP status code to "
|
|
"SendErrorResponse()");
|
|
break;
|
|
|
|
}
|
|
|
|
if (bSendResponseToClient(pecb, szaResponse, lstrlenA(c_szErrorHeaders),
|
|
c_szErrorHeaders, 0, NULL))
|
|
{
|
|
pecb->dwHttpStatusCode = dwStatusCode;
|
|
}
|
|
|
|
DWORD dwHseStatus;
|
|
|
|
dwHseStatus = (dwStatusCode >= HTTP_STATUS_BAD_REQUEST) ?
|
|
HSE_STATUS_ERROR : HSE_STATUS_SUCCESS;
|
|
}
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Function: DwQueryHeader
|
|
//
|
|
// Purpose: Queries one of the headers sent in an HTTP request
|
|
//
|
|
// Arguments:
|
|
// pecb [in] Exetnsion control block
|
|
// szaHeader [in] Header name to query
|
|
// pszaResult [out] Returns value of header or NULL if not present
|
|
//
|
|
// Returns: ERROR_SUCCESS, ERROR_OUTOFMEMORY, or an ISAPI error code
|
|
//
|
|
// Author: danielwe 14 Aug 2000
|
|
//
|
|
// Notes:
|
|
//
|
|
DWORD DwQueryHeader(LPEXTENSION_CONTROL_BLOCK pecb, LPCSTR szaHeader,
|
|
LPSTR *pszaResult)
|
|
{
|
|
DWORD cbHeader = 0;
|
|
LPSTR szaBuf = NULL;
|
|
DWORD dwReturn = ERROR_SUCCESS;
|
|
|
|
Assert(pszaResult);
|
|
|
|
*pszaResult = 0;
|
|
|
|
if (!pecb->GetServerVariable(pecb->ConnID, (LPSTR)szaHeader, NULL, &cbHeader))
|
|
{
|
|
dwReturn = GetLastError();
|
|
if (dwReturn == ERROR_INSUFFICIENT_BUFFER)
|
|
{
|
|
szaBuf = new CHAR[cbHeader / sizeof(CHAR)];
|
|
if (szaBuf)
|
|
{
|
|
if (!pecb->GetServerVariable(pecb->ConnID, (LPSTR)szaHeader,
|
|
(LPVOID)szaBuf, &cbHeader))
|
|
{
|
|
dwReturn = GetLastError();
|
|
}
|
|
else
|
|
{
|
|
*pszaResult = szaBuf;
|
|
dwReturn = ERROR_SUCCESS;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
dwReturn = ERROR_OUTOFMEMORY;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
AssertSz(dwReturn != ERROR_SUCCESS, "How can it succeed if I gave"
|
|
" it a NULL pointer!");
|
|
}
|
|
}
|
|
|
|
return dwReturn;
|
|
}
|
|
|