Windows-classic-samples/Samples/Win7Samples/web/WWSAPI/HttpCalculatorWithKerberosOverSslClient/CalculatorClientKerberosOverSsl.cpp

//------------------------------------------------------------
// Copyright (c) Microsoft Corporation.  All rights reserved.
//------------------------------------------------------------

#ifndef UNICODE
#define UNICODE
#endif
#include "WebServices.h"
#include "process.h"
#include "stdio.h"
#include "string.h"
#include "wincrypt.h"
#include "CalculatorService.wsdl.h"

// Print out rich error info
void PrintError(
    __in HRESULT errorCode, 
    __in_opt WS_ERROR* error)
{
    wprintf(L"Failure: errorCode=0x%lx\n", errorCode);

    if (errorCode == E_INVALIDARG || errorCode == WS_E_INVALID_OPERATION)
    {
        // Correct use of the APIs should never generate these errors
        wprintf(L"The error was due to an invalid use of an API.  This is likely due to a bug in the program.\n");
        DebugBreak();
    }

    HRESULT hr = S_OK;
    if (error != NULL)
    {
        ULONG errorCount;
        hr = WsGetErrorProperty(error, WS_ERROR_PROPERTY_STRING_COUNT, &errorCount, sizeof(errorCount));
        if (FAILED(hr))
        {
            goto Exit;
        }
        for (ULONG i = 0; i < errorCount; i++)
        {
            WS_STRING string;
            hr = WsGetErrorString(error, i, &string);
            if (FAILED(hr))
            {
                goto Exit;
            }
            wprintf(L"%.*s\n", string.length, string.chars);
        }
    }
Exit:
    if (FAILED(hr))
    {
        wprintf(L"Could not get error string (errorCode=0x%lx)\n", hr);
    }
}

// Main entry point
int __cdecl wmain(
    __in int argc, 
    __in_ecount(argc) wchar_t **argv)
{
    HRESULT hr = S_OK;
    WS_ERROR* error = NULL;
    WS_HEAP* heap = NULL;
    WS_SERVICE_PROXY* proxy = NULL;
    
    // Command line parameter specifies the SPN for the target server.
    WS_STRING serviceSpn;
    if (argc == 2)
    {
        serviceSpn.chars = argv[1];
        size_t length = wcslen(
            serviceSpn.chars);
        // let's make sure the length is within a reasonable limit
        if (1024 >= length)
        {
            serviceSpn.length = (ULONG) length;
        }
        else
        {
            wprintf(
                L"SPN parameter is too long: '%s'\n",
                serviceSpn.chars);
            return 1;
        }
    }
    else
    {
        wprintf(
            L"Service SPN parameter is missing.\n");
        return 1;
    }
    
    // declare and initialize a windows credential
    WS_DEFAULT_WINDOWS_INTEGRATED_AUTH_CREDENTIAL windowsCredential = {}; // zero out the struct
    windowsCredential.credential.credentialType = WS_DEFAULT_WINDOWS_INTEGRATED_AUTH_CREDENTIAL_TYPE; // set the credential type
    
    // declare and initialize a kerberos APREQ message security binding
    WS_KERBEROS_APREQ_MESSAGE_SECURITY_BINDING kerberosBinding = {}; // zero out the struct
    kerberosBinding.binding.bindingType = WS_KERBEROS_APREQ_MESSAGE_SECURITY_BINDING_TYPE; // set the binding type
    kerberosBinding.bindingUsage = WS_SUPPORTING_MESSAGE_SECURITY_USAGE; // set the binding usage
    kerberosBinding.clientCredential = &windowsCredential.credential;
    
    // declare and initialize an SSL transport security binding
    WS_SSL_TRANSPORT_SECURITY_BINDING sslBinding = {}; // zero out the struct
    sslBinding.binding.bindingType = WS_SSL_TRANSPORT_SECURITY_BINDING_TYPE; // set the binding type
    
    // declare and initialize the array of all security bindings
    WS_SECURITY_BINDING* securityBindings[2] = { &sslBinding.binding, &kerberosBinding.binding };
    
    // declare and initialize the security description
    WS_SECURITY_DESCRIPTION securityDescription = {}; // zero out the struct
    securityDescription.securityBindings = securityBindings;
    securityDescription.securityBindingCount = WsCountOf(securityBindings);
    
    int result = 0;
    WS_ENDPOINT_ADDRESS address = {};
    static const WS_STRING url = WS_STRING_VALUE(L"https://localhost:8443/example");
    address.url = url;
    WS_SPN_ENDPOINT_IDENTITY serviceIdentity;
    serviceIdentity.identity.identityType = WS_SPN_ENDPOINT_IDENTITY_TYPE;
    serviceIdentity.spn = serviceSpn;
    address.identity = &serviceIdentity.identity;
    
    // Create an error object for storing rich error information
    hr = WsCreateError(
        NULL, 
        0, 
        &error);
    if (FAILED(hr))
    {
        goto Exit;
    }
    
    // Create a heap to store deserialized data
    hr = WsCreateHeap(
        /*maxSize*/ 2048, 
        /*trimSize*/ 512, 
        NULL, 
        0, 
        &heap, 
        error);
    if (FAILED(hr))
    {
        goto Exit;
    }
    
    // Create the proxy
    hr = WsCreateServiceProxy(
        WS_CHANNEL_TYPE_REQUEST, 
        WS_HTTP_CHANNEL_BINDING, 
        &securityDescription, 
        NULL, 
        0, 
        NULL,
        0,
        &proxy, 
        error);
    if (FAILED(hr))
    {
        goto Exit;
    }
    
    
    
    hr = WsOpenServiceProxy(
        proxy, 
        &address, 
        NULL, 
        error);
    if (FAILED(hr))
    {
        goto Exit;
    }
    
    hr = DefaultBinding_ICalculator_Add(
        proxy, 
        1, 
        2, 
        &result, 
        heap, 
        NULL, 
        0, 
        NULL, 
        error);
    if (FAILED(hr))
    {
        goto Exit;
    }
    
    wprintf(L"%d + %d = %d\n", 1, 2, result);
                   
Exit:
    if (FAILED(hr))
    {
        // Print out the error
        PrintError(hr, error);
    }
    if (proxy != NULL)
    {
        WsCloseServiceProxy(
            proxy, 
            NULL, 
            NULL);
    
        WsFreeServiceProxy(
            proxy);
    }
    
    
    if (heap != NULL)
    {
        WsFreeHeap(heap);
    }
    if (error != NULL)
    {
        WsFreeError(error);
    }
    fflush(stdout);
    return SUCCEEDED(hr) ? 0 : -1;
}