CONVTNEF.CPP

// --convtnef.cpp-------------------------------------------------------------- 
// 
// Code for messages whose content is to be TNEFed. 
// 
// Copyright (C) Microsoft Corp., 1986-1996.  All Rights Reserved. 
// All rights reserved. 
// 
// ---------------------------------------------------------------------------- 
 
#include "edk.h" 
#include "convcls.h" 
#include "tagnames.h" 
#include "msgemit.h" 
#include "ipmcdefs.h" 
 
//$--CIPMConvert::HrTnefToContent--------------------------------------------------------------- 
// 
// DESCRIPTION: TNEF decodes TNEFed data from the input stream. 
// to the envelope content. 
// 
// INPUT:       none 
// 
// RETURNS:     HRESULT --  NOERROR if successful, 
//                          E_INVALIDARG if bad input, 
//                          E_FAIL otherwise. 
// 
// ---------------------------------------------------------------------------- 
HRESULT CIPMConvert::HrTnefToContent() 
{ 
    HRESULT             hr              =   NOERROR; 
    LPTSTR              lpszTag         =   NULL;   // tag string pointer 
    LPTSTR              lpszData        =   NULL;   // data string pointer 
    LPITNEF             lpTnef          =   NULL;   // TNEF interface pointer 
    LPSTnefProblemArray lpsProblems     =   NULL;   // property problem array 
    ULONG               cbRead          =   0;      // # bytes read 
    SPropTagArray       sNoPropTags     =   {0};    // property tag array 
 
    DEBUGPRIVATE("CIPMConvert::HrTnefToContent()\n"); 
 
    // consistency checks 
    ASSERTERROR(!FBadUnknown(m_lpStream), "Bad m_lpStream"); 
    ASSERTERROR(!FBadUnknown(m_lpAB), "Bad m_lpAB"); 
    ASSERTERROR(!FBadUnknown(m_lpEnvelope), "Bad m_lpEnvelope"); 
 
    // TNEF decode the saved TNEFed data. 
    // This data contains the properties for the 
    // envelope's content and all of its attachments. 
 
    // First, read in the "MAPIMAIL.DAT" TNEF tag and data 
    // from the input stream. (The data will be null). 
    hr = HrParseTagAndData( 
                m_lpStream,     // stream pointer 
                &cbRead,        // # bytes read 
                &lpszTag,       // tag pointer 
                &lpszData);     // data pointer 
 
    if ( FAILED(hr) ) 
    { 
        hr = HR_LOG(E_FAIL); 
 
        goto cleanup; 
    } 
 
    // Check the tag read 
    if ( lstrcmp(lpszTag, lpszTagTnefHdr) != 0 ) 
    { 
        hr = HR_LOG(E_FAIL); 
 
        goto cleanup; 
    } 
 
    // Next, open a TNEF interface on the input stream 
    // which we shall decode to the envelope content. 
  hr = OpenTnefStreamEx( 
            NULL, 
        m_lpStream,         // input stream pointer 
        (LPTSTR) szTnefFileName,    // file name associated with TNEFed data 
    TNEF_DECODE,        // decode the message properties 
    m_lpEnvelope,       // destination message pointer 
    wTnefKey,           // "unique" TNEF key 
    m_lpAB,             // address book pointer 
    &lpTnef);           // TNEF interface object pointer 
 
    if ( FAILED(hr) ) 
    { 
        hr = HR_LOG(E_FAIL); 
 
        goto cleanup; 
    } 
 
    ASSERTERROR(!FBadUnknown(lpTnef), "Bad lpTnef"); 
 
    // Decode all properties to the envelope content 
    hr = lpTnef->ExtractProps( 
            TNEF_PROP_EXCLUDE,      // exclude 
            (LPSPropTagArray) &sNoPropTags, // no properties to exclude 
            &lpsProblems);          // property problem array pointer 
 
    if ( FAILED(hr) )       // Don't care about MAPI_W_ERRORS_RETURNED in this case 
    { 
        hr = HR_LOG(E_FAIL); 
 
        goto cleanup; 
    } 
 
    // we are done! 
 
cleanup: 
 
    // Release all OLE and MAPI objects 
    ULRELEASE(lpTnef); 
 
    // Free MAPI buffers 
    MAPIFREEBUFFER(lpsProblems); 
    MAPIFREEBUFFER(lpszTag); 
    MAPIFREEBUFFER(lpszData); 
 
    RETURN(hr); 
 
}