HEADDUMP.CPP
//=--------------------------------------------------------------------------=
// (C) Copyright 1996-1997 Microsoft Corporation. All Rights Reserved.
//=--------------------------------------------------------------------------=
/****************************************************************************
*
* HeadDump: requests the default HTML document from the server and prints
*along with HTTP headers.
*Microsoft Corporation (C). Leon Braginski.
*
* PURPOSE:
* This sample demonstrates how to create and submit HTTP
* request. Sample requests the default HTML document from the
* server and then display it along with the HTTP transaction headers.
* This sample also allows to access password protected pages. It
* checks for HTTP server response code and it is "401 Access Denied"
* it asks password and user name and then resubmit request.
*
* This sample features:
* - SSL/PCT support
* - NTLM Authentication (when IE 3.0 or above is installed)
* - Basic Authentication
* - Generating stadart user name/password UI to get user credentials.
* - Getting user name and passwors without UI
* - getting any document of any MIME type
* - translation of Internet error codes to the extended error messeges
* - ability to save remote object to a local file (when no local file
* specify output goes to STDOUT).
*
* Usage:
* headdump.exe -h host [-o object] [-p proxy] [-u] [-s] [-?] [-f file]
*-h host is a HTTP server such as www.server.com
*-p proxy is optional proxy, in form: http://proxy:80
*-o object is optional document to GET, in form: /foobar.htm
*-u use this flag to bring user name and password UI (optional)
*-f save remote object as local file (optional)
*-? get help
*-s use SSL (optional)
*
* Samples:
* To get help on command line parameters:
*C:> headdump.exe -?
*
* Note that HeadDump can also invoke ISAPI dll or CGI like this:
* C:> headdump.exe -s www.server.name -o /scripts/myisapi.dll
*
* Since sample generates large output, you may want to pipe to more:
* C:> headdump.exe -s www.server.name -o /scripts/myisapi.dll | more
*
* To save remote HTML object as file:
*C:> headdump.exe -s www.server.name -o /exe_files/foo.exe -f foo.exe
*
*
*
****************************************************************************/
#include <windows.h>
#include <wininet.h>
#include <iostream.h>
BOOL ErrorOut ( DWORD dError, TCHAR * szCallingFunc);
BOOL ParseParams (int argc , CHAR ** argv, CHAR* szServer, CHAR* szObject,
CHAR* szProxy, CHAR * szFile, BOOL& bUi, BOOL& bSSL);
void Usage (CHAR *szName);
int main (int argc, char *argv[])
{
HINTERNET hOpen, hConnect, hReq;
DWORD dwSize, dwCode;
DWORD dwFlags = INTERNET_FLAG_RELOAD |
INTERNET_FLAG_NO_CACHE_WRITE |
INTERNET_FLAG_KEEP_CONNECTION;
CHAR *lpBuffer, szData[51];
CHAR szServer[256], szObject [256], szProxy [256], szFile [256];
BOOL bSSL, bUi;
HANDLE hFile = NULL;
INTERNET_PORT dwPort;
TCHAR szAccept[] = "*/*";
LPSTR AcceptTypes[2]={0};
AcceptTypes[0]=szAccept;
if (!ParseParams ( argc , argv, szServer, szObject,
szProxy, szFile, bUi, bSSL))
return (FALSE);
if (szFile [0])
{
// Open local file
SECURITY_ATTRIBUTES sa = {sizeof(SECURITY_ATTRIBUTES), NULL, FALSE};
if ( !(hFile = CreateFile (szFile,
GENERIC_WRITE,
FILE_SHARE_READ,
&sa,
CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL, NULL) ))
{
cerr << "Can't open file: " << szFile << " Error: " << GetLastError() << endl;
return 0;
}
}
if (szProxy [0] == NULL)
{
// No proxy was specified
if ( !(hOpen = InternetOpen ( "HeadDump", LOCAL_INTERNET_ACCESS , NULL, 0, 0) ) )
{
ErrorOut ( GetLastError(), "InternetOpen");
return 0;
}
}
else
{
// Use proxy server
if ( !(hOpen = InternetOpen ( "HeadDump", CERN_PROXY_INTERNET_ACCESS, szProxy, NULL, 0) ) )
{
ErrorOut ( GetLastError(), "InternetOpen");
return 0;
}
}
if (bSSL)
{
dwPort = INTERNET_DEFAULT_HTTPS_PORT;
dwFlags |= INTERNET_FLAG_SECURE |
INTERNET_FLAG_IGNORE_CERT_CN_INVALID |
INTERNET_FLAG_IGNORE_CERT_DATE_INVALID ;
}
else
dwPort = INTERNET_INVALID_PORT_NUMBER;
if ( !(hConnect = InternetConnect ( hOpen, szServer , dwPort, "", "", INTERNET_SERVICE_HTTP, 0 , 0) ) )
{
ErrorOut (GetLastError(), "InternetConnect");
return 0;
}
if ( !(hReq = HttpOpenRequest (hConnect, "GET", szObject, HTTP_VERSION, "",
(LPCTSTR*) AcceptTypes, dwFlags ,0 )))
{
ErrorOut (GetLastError(), "HttpOpenRequest");
return 0;
}
again:
if (!HttpSendRequest (hReq, NULL, 0, NULL, 0) )
{
ErrorOut (GetLastError(), "HttpSend");
return 0;
}
dwSize = sizeof (DWORD) ;
if ( !HttpQueryInfo (hReq, HTTP_QUERY_STATUS_CODE | HTTP_QUERY_FLAG_NUMBER, &dwCode, &dwSize, NULL))
{
ErrorOut (GetLastError(), "HttpQueryInfo");
return FALSE;
}
if ( dwCode == HTTP_STATUS_DENIED || dwCode == HTTP_STATUS_PROXY_AUTH_REQ)
{
// We have to read all outstanding data on the Internet handle
// before we can resubmit request. Just discard the data.
do
{
InternetReadFile (hReq, (LPVOID)szData, 50, &dwSize);
}
while (dwSize != 0);
if (!bUi)
{
// This is a secure page.
cerr << "This page is password protected. " << endl;
CHAR szUser[50]="";
CHAR szPass[50]="";
cerr << "User: ";
cin >> szUser;
cerr << "Pass: ";
cin >> szPass;
if ( !InternetSetOption (hConnect, INTERNET_OPTION_USERNAME, (LPVOID) szUser, lstrlen (szUser) ))
{
cerr << "InternetSetOptionFailed: " << GetLastError() << endl;
return FALSE;
}
if ( !InternetSetOption (hConnect, INTERNET_OPTION_PASSWORD, (LPVOID) szPass, lstrlen (szPass) ))
{
cerr << "InternetSetOptionFailed: " << GetLastError() << endl;
return FALSE;
}
goto again;
}
else
{
if ( InternetErrorDlg (GetDesktopWindow(),
hReq,
ERROR_INTERNET_INCORRECT_PASSWORD,
FLAGS_ERROR_UI_FILTER_FOR_ERRORS |
FLAGS_ERROR_UI_FLAGS_GENERATE_DATA |
FLAGS_ERROR_UI_FLAGS_CHANGE_OPTIONS,
NULL) == ERROR_INTERNET_FORCE_RETRY)
goto again;
}
}
// First time we will find out the size of the headers.
HttpQueryInfo (hReq,HTTP_QUERY_RAW_HEADERS_CRLF, NULL, &dwSize, NULL);
lpBuffer = new char [dwSize + 1 ];
// Now we call HttpQueryInfo again to get the headers.
if (!HttpQueryInfo (hReq,HTTP_QUERY_RAW_HEADERS_CRLF, (LPVOID) lpBuffer,
&dwSize, NULL))
{
ErrorOut (GetLastError(), "HttpQueryInfo");
return FALSE;
}
*(lpBuffer + dwSize) = '\0';
cout << lpBuffer << endl;
do
{
if (!InternetReadFile (hReq, (LPVOID)szData, 50, &dwSize) )
{
ErrorOut (GetLastError (), "InternetReadFile");
return FALSE;
}
if (dwSize != 0)
{
if (!hFile)
{
// dump text to the screen
szData[dwSize] = '\0';
cout << szData;
}
else
{
DWORD dwWritten;
if (!WriteFile(hFile, szData, dwSize, &dwWritten, NULL))
{
CloseHandle (hFile);
cerr << "WriteFile to " << szFile << " failed: " <<
GetLastError () << endl;
return FALSE;
}
}
}
}
while (dwSize);
cout << endl;
if (!InternetCloseHandle (hReq) )
{
ErrorOut (GetLastError (), "CloseHandle on hReq");
return FALSE;
}
if (!InternetCloseHandle (hConnect) )
{
ErrorOut (GetLastError (), "CloseHandle on hConnect");
return FALSE;
}
if (!InternetCloseHandle (hOpen) )
{
ErrorOut (GetLastError (), "CloseHandle on hOpen");
return FALSE;
}
delete [] lpBuffer;
if (hFile)
{
FlushFileBuffers (hFile);
CloseHandle (hFile);
}
return TRUE;
}
/****************************************************************************
*
* FUNCTION: ErrorOut
*
* PURPOSE: This function is used to get extended Internet error.
*
* COMMENTS: Function returns TRUE on success and FALSE on failure.
*
****************************************************************************/
BOOL ErrorOut ( DWORD dError, TCHAR * szCallFunc)
{
TCHAR szTemp[100] = "", *szBuffer=NULL, *szBufferFinal = NULL;
char strName[256]="";
DWORD dwIntError , dwLength = 0;
FormatMessage(FORMAT_MESSAGE_FROM_HMODULE,
GetModuleHandle("wininet.dll"),dError,0,
(LPSTR)strName,256,NULL);
wsprintf (szTemp, "%s error code: %d\nMessage: %s\n",
szCallFunc, dError, strName);
if (dError == ERROR_INTERNET_EXTENDED_ERROR)
{
InternetGetLastResponseInfo (&dwIntError, NULL, &dwLength);
if (dwLength)
{
if ( !(szBuffer = (TCHAR *) LocalAlloc ( LPTR, dwLength) ) )
{
lstrcat (szTemp, TEXT ( "Unable to allocate memory to display Internet error code. Error code: ") );
lstrcat (szTemp, TEXT (_itoa (GetLastError(), szBuffer, 10) ) );
lstrcat (szTemp, TEXT ("\n") );
cerr << szTemp << endl;
return FALSE;
}
if (!InternetGetLastResponseInfo (&dwIntError, (LPTSTR) szBuffer, &dwLength))
{
lstrcat (szTemp, TEXT ( "Unable to get Internet error. Error code: ") );
lstrcat (szTemp, TEXT (_itoa (GetLastError(), szBuffer, 10) ) );
lstrcat (szTemp, TEXT ("\n") );
cerr << szTemp << endl;
return FALSE;
}
if ( !(szBufferFinal = (TCHAR *) LocalAlloc ( LPTR, (strlen (szBuffer) +strlen (szTemp) + 1) ) ) )
{
lstrcat (szTemp, TEXT ( "Unable to allocate memory. Error code: ") );
lstrcat (szTemp, TEXT (_itoa (GetLastError(), szBuffer, 10) ) );
lstrcat (szTemp, TEXT ("\n") );
cerr << szTemp << endl;
return FALSE;
}
lstrcpy (szBufferFinal, szTemp);
lstrcat (szBufferFinal, szBuffer);
LocalFree (szBuffer);
cerr << szBufferFinal << endl;
LocalFree (szBufferFinal);
}
}
else
cerr << szTemp << endl;
return TRUE;
}
BOOL ParseParams (int argc , CHAR ** argv, CHAR* szServer, CHAR* szObject,
CHAR* szProxy, CHAR * szFile, BOOL& bUi, BOOL& bSSL)
{
int i = 1;
BOOL bServer = FALSE;
szProxy[0] = NULL, bUi = FALSE, bSSL = FALSE, szFile[0] = NULL;
lstrcpy (szObject, "");
while (i < argc)
{
if ( *argv[i] != '-')
{
Usage (argv[0]);
return FALSE;
}
switch (argv[i][1])
{
case 'H':
case 'h':
lstrcpy (szServer,argv[i+1]);
i += 2;
bServer = TRUE;
break;
case 'o':
case 'O':
lstrcpy (szObject, argv[i+1]);
i += 2;
break;
case 'p':
case 'P':
lstrcpy (szProxy, argv[i+1]);
i += 2;
break;
case 'u':
case 'U':
bUi = TRUE;
i++;
break;
case 's':
case 'S':
bSSL = TRUE;
i++;
break;
case 'f':
case 'F':
lstrcpy (szFile, argv[i+1]);
i += 2;
break;
case '?':
Usage (argv[0]);
return FALSE;
break;
default:
cerr << "Invalid command line argument: "<< argv[i] << endl;
Usage (argv[0]);
return FALSE;
}
}
if ( bServer )
return TRUE;
else
{
Usage(argv[0]);
return FALSE;
}
}
void Usage (CHAR *szName)
{
cerr << "Usage: " << szName <<" -h host [-o object] [-p proxy] [-u] [-s] [-?] [-f file]" << endl;
cerr << "\t-h host is a HTTP server such as www.server.com" << endl;
cerr << "\t-p proxy is optional proxy in form: http://proxy:80" << endl;
cerr << "\t-o object is optional document to GET in form: /foobar.htm" << endl;
cerr << "\t-u use this flag to bring user name and password UI " << endl;
cerr << "\t-f save remote object as local file " << endl;
cerr << "\t-? get help " << endl;
cerr << "\t-s use SSL " << endl;
}