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sendmail.c

/*
 * MAPISendMail implementation
 *
 * Copyright 2005 Hans Leidekker
 * Copyright 2009 Owen Rudge for CodeWeavers
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */

#include "config.h"
#include "wine/port.h"

#include <stdio.h>
#include <stdarg.h>

#define COBJMACROS

#include "windef.h"
#include "winbase.h"
#include "winerror.h"
#include "objbase.h"
#include "objidl.h"
#include "mapi.h"
#include "mapix.h"
#include "mapiutil.h"
#include "mapidefs.h"
#include "winreg.h"
#include "shellapi.h"
#include "shlwapi.h"
#include "wine/debug.h"
#include "util.h"

WINE_DEFAULT_DEBUG_CHANNEL(mapi);

#define READ_BUF_SIZE    4096

/*
   Internal function to send a message via Extended MAPI. Wrapper around the Simple
   MAPI function MAPISendMail.
*/
static ULONG sendmail_extended_mapi(LHANDLE mapi_session, ULONG_PTR uiparam, lpMapiMessage message,
    FLAGS flags, ULONG reserved)
{
    ULONG tags[] = {1, PR_IPM_DRAFTS_ENTRYID};
    ULONG retval = MAPI_E_FAILURE;
    IMAPISession *session = NULL;
    IMAPITable* msg_table;
    LPSRowSet rows = NULL;
    IMsgStore* msg_store;
    IMAPIFolder* folder = NULL;
    LPENTRYID entry_id;
    LPSPropValue props;
    ULONG entry_len;
    DWORD obj_type;
    IMessage* msg;
    ULONG values;
    HRESULT ret;

    TRACE("Using Extended MAPI wrapper for MAPISendMail\n");

    /* Attempt to log on via Extended MAPI */

    ret = MAPILogonEx(0, NULL, NULL, MAPI_EXTENDED | MAPI_USE_DEFAULT | MAPI_NEW_SESSION, &session);
    TRACE("MAPILogonEx: %x\n", ret);

    if (ret != S_OK)
    {
        retval = MAPI_E_LOGIN_FAILURE;
        goto cleanup;
    }

    /* Open the default message store */

    if (IMAPISession_GetMsgStoresTable(session, 0, &msg_table) == S_OK)
    {
        /* We want the default store */
        SizedSPropTagArray(2, columns) = {2, {PR_ENTRYID, PR_DEFAULT_STORE}};

        /* Set the columns we want */
        if (IMAPITable_SetColumns(msg_table, (LPSPropTagArray) &columns, 0) == S_OK)
        {
            while (1)
            {
                if (IMAPITable_QueryRows(msg_table, 1, 0, &rows) != S_OK)
                {
                    MAPIFreeBuffer(rows);
                    rows = NULL;
                }
                else if (rows->cRows != 1)
                {
                    FreeProws(rows);
                    rows = NULL;
                }
                else
                {
                    /* If it's not the default store, try the next row */
                    if (!rows->aRow[0].lpProps[1].Value.b)
                    {
                        FreeProws(rows);
                        continue;
                    }
                }

                break;
            }
        }

        IMAPITable_Release(msg_table);
    }

    /* Did we manage to get the right store? */
    if (!rows)
        goto logoff;

    /* Open the message store */
    IMAPISession_OpenMsgStore(session, 0, rows->aRow[0].lpProps[0].Value.bin.cb,
                              (ENTRYID *) rows->aRow[0].lpProps[0].Value.bin.lpb, NULL,
                              MDB_NO_DIALOG | MAPI_BEST_ACCESS, &msg_store);

    /* We don't need this any more */
    FreeProws(rows);

    /* First open the inbox, from which the drafts folder can be opened */
    if (IMsgStore_GetReceiveFolder(msg_store, NULL, 0, &entry_len, &entry_id, NULL) == S_OK)
    {
        IMsgStore_OpenEntry(msg_store, entry_len, entry_id, NULL, 0, &obj_type, (LPUNKNOWN*) &folder);
        MAPIFreeBuffer(entry_id);
    }

    /* Open the drafts folder, or failing that, try asking the message store for the outbox */
    if ((folder == NULL) || ((ret = IMAPIFolder_GetProps(folder, (LPSPropTagArray) tags, 0, &values, &props)) != S_OK))
    {
        TRACE("Unable to open Drafts folder; opening Outbox instead\n");
        tags[1] = PR_IPM_OUTBOX_ENTRYID;
        ret = IMsgStore_GetProps(msg_store, (LPSPropTagArray) tags, 0, &values, &props);
    }

    if (ret != S_OK)
        goto logoff;

    IMsgStore_OpenEntry(msg_store, props[0].Value.bin.cb, (LPENTRYID) props[0].Value.bin.lpb,
        NULL, MAPI_MODIFY, &obj_type, (LPUNKNOWN *) &folder);

    /* Create a new message */
    if (IMAPIFolder_CreateMessage(folder, NULL, 0, &msg) == S_OK)
    {
        ULONG token;
        SPropValue p;

        /* Define message properties */
        p.ulPropTag = PR_MESSAGE_FLAGS;
        p.Value.l = MSGFLAG_FROMME | MSGFLAG_UNSENT;

        IMessage_SetProps(msg, 1, &p, NULL);

        p.ulPropTag = PR_SENTMAIL_ENTRYID;
        p.Value.bin.cb = props[0].Value.bin.cb;
        p.Value.bin.lpb = props[0].Value.bin.lpb;
        IMessage_SetProps(msg, 1,&p, NULL);

        /* Set message subject */
        if (message->lpszSubject)
        {
            p.ulPropTag = PR_SUBJECT_A;
            p.Value.lpszA = message->lpszSubject;
            IMessage_SetProps(msg, 1, &p, NULL);
        }

        /* Set message body */
        if (message->lpszNoteText)
        {
            LPSTREAM stream = NULL;

            if (IMessage_OpenProperty(msg, PR_BODY_A, &IID_IStream, 0,
                MAPI_MODIFY | MAPI_CREATE, (LPUNKNOWN*) &stream) == S_OK)
            {
                IStream_Write(stream, message->lpszNoteText, strlen(message->lpszNoteText)+1, NULL);
                IStream_Release(stream);
            }
        }

        /* Add message attachments */
        if (message->nFileCount > 0)
        {
            ULONG num_attach = 0;
            int i, j;

            for (i = 0; i < message->nFileCount; i++)
            {
                IAttach* attachment = NULL;
                SPropValue prop[4];
                LPCSTR filename;
                HANDLE file;

                if (!message->lpFiles[i].lpszPathName)
                    continue;

                /* Open the attachment for reading */
                file = CreateFileA(message->lpFiles[i].lpszPathName, GENERIC_READ, FILE_SHARE_READ,
                    NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);

                if (file == INVALID_HANDLE_VALUE)
                    continue;

                /* Check if a display filename has been given; if not, get one ourselves from path name */
                filename = message->lpFiles[i].lpszFileName;

                if (!filename)
                {
                    filename = message->lpFiles[i].lpszPathName;

                    for (j = strlen(message->lpFiles[i].lpszPathName)-1; j >= 0; j--)
                    {
                        if (message->lpFiles[i].lpszPathName[i] == '\\' ||
                            message->lpFiles[i].lpszPathName[i] == '/')
                        {
                            filename = &message->lpFiles[i].lpszPathName[i+1];
                            break;
                        }
                    }
                }

                TRACE("Attachment %d path: '%s'; filename: '%s'\n", i, debugstr_a(message->lpFiles[i].lpszPathName),
                    debugstr_a(filename));

                /* Create the attachment */
                if (IMessage_CreateAttach(msg, NULL, 0, &num_attach, &attachment) != S_OK)
                {
                    TRACE("Unable to create attachment\n");
                    CloseHandle(file);
                    continue;
                }

                /* Set the attachment properties */
                ZeroMemory(prop, sizeof(prop));

                prop[0].ulPropTag = PR_ATTACH_METHOD;
                prop[0].Value.ul = ATTACH_BY_VALUE;
                prop[1].ulPropTag = PR_ATTACH_LONG_FILENAME_A;
                prop[1].Value.lpszA = (LPSTR) filename;
                prop[2].ulPropTag = PR_ATTACH_FILENAME_A;
                prop[2].Value.lpszA = (LPSTR) filename;
                prop[3].ulPropTag = PR_RENDERING_POSITION;
                prop[3].Value.l = -1;

                if (IAttach_SetProps(attachment, 4, prop, NULL) == S_OK)
                {
                    LPSTREAM stream = NULL;

                    if (IAttach_OpenProperty(attachment, PR_ATTACH_DATA_BIN, &IID_IStream, 0,
                        MAPI_MODIFY | MAPI_CREATE, (LPUNKNOWN*) &stream) == S_OK)
                    {
                        BYTE data[READ_BUF_SIZE];
                        DWORD size = 0, read, written;

                        while (ReadFile(file, data, READ_BUF_SIZE, &read, NULL) && (read != 0))
                        {
                            IStream_Write(stream, data, read, &written);
                            size += read;
                        }

                        TRACE("%d bytes read, %d bytes written of attachment\n", read, written);

                        IStream_Commit(stream, STGC_DEFAULT);
                        IStream_Release(stream);

                        prop[0].ulPropTag = PR_ATTACH_SIZE;
                        prop[0].Value.ul = size;
                        IAttach_SetProps(attachment, 1, prop, NULL);

                        IAttach_SaveChanges(attachment, KEEP_OPEN_READONLY);
                        num_attach++;
                    }
                }

                CloseHandle(file);
                IAttach_Release(attachment);
            }
        }

        IMessage_SaveChanges(msg, KEEP_OPEN_READWRITE);

        /* Prepare the message form */

        if (IMAPISession_PrepareForm(session, NULL, msg, &token) == S_OK)
        {
            ULONG access = 0, status = 0, flags = 0, pc = 0;
            ULONG pT[2] = {1, PR_MSG_STATUS};

            /* Retrieve message status, flags, access rights and class */

            if (IMessage_GetProps(msg, (LPSPropTagArray) pT, 0, &pc, &props) == S_OK)
            {
                status = props->Value.ul;
                MAPIFreeBuffer(props);
            }

            pT[1] = PR_MESSAGE_FLAGS;

            if (IMessage_GetProps(msg, (LPSPropTagArray) pT, 0, &pc, &props) == S_OK)
            {
                flags = props->Value.ul;
                MAPIFreeBuffer(props);
            }

            pT[1] = PR_ACCESS;

            if (IMessage_GetProps(msg, (LPSPropTagArray) pT, 0, &pc, &props) == S_OK)
            {
                access = props->Value.ul;
                MAPIFreeBuffer(props);
            }

            pT[1] = PR_MESSAGE_CLASS_A;

            if (IMessage_GetProps(msg, (LPSPropTagArray) pT, 0, &pc, &props) == S_OK)
            {
                /* Show the message form (edit window) */

                ret = IMAPISession_ShowForm(session, 0, msg_store, folder, NULL,
                                            token, NULL, 0, status, flags, access,
                                            props->Value.lpszA);

                switch (ret)
                {
                    case S_OK:
                        retval = SUCCESS_SUCCESS;
                        break;

                    case MAPI_E_USER_CANCEL:
                        retval = MAPI_E_USER_ABORT;
                        break;

                    default:
                        TRACE("ShowForm failure: %x\n", ret);
                        break;
                }
            }
        }

        IMessage_Release(msg);
    }

    /* Free up the resources we've used */
    IMAPIFolder_Release(folder);
    IMsgStore_Release(msg_store);

logoff: ;
    IMAPISession_Logoff(session, 0, 0, 0);
    IMAPISession_Release(session);

cleanup: ;
    MAPIUninitialize();
    return retval;
}

/**************************************************************************
 *  MAPISendMail  (MAPI32.211)
 *
 * Send a mail.
 *
 * PARAMS
 *  session  [I] Handle to a MAPI session.
 *  uiparam  [I] Parent window handle.
 *  message  [I] Pointer to a MAPIMessage structure.
 *  flags    [I] Flags.
 *  reserved [I] Reserved, pass 0.
 *
 * RETURNS
 *  Success: SUCCESS_SUCCESS
 *  Failure: MAPI_E_FAILURE
 *
 * NOTES
 *  The fallback procedure is a temporary hack.
 */
ULONG WINAPI MAPISendMail( LHANDLE session, ULONG_PTR uiparam,
    lpMapiMessage message, FLAGS flags, ULONG reserved )
{
    ULONG ret = MAPI_E_FAILURE;
    unsigned int i, to_count = 0, cc_count = 0, bcc_count = 0;
    unsigned int to_size = 0, cc_size = 0, bcc_size = 0, subj_size, body_size;

    char *to = NULL, *cc = NULL, *bcc = NULL;
    const char *address, *subject, *body;
    static const char format[] =
        "mailto:\"%s\"?subject=\"%s\"&cc=\"%s\"&bcc=\"%s\"&body=\"%s\"";
    char *mailto = NULL, *escape = NULL;
    char empty_string[] = "";
    HRESULT res;
    DWORD size;

    TRACE( "(0x%08x 0x%08lx %p 0x%08x 0x%08x)\n", session, uiparam,
           message, flags, reserved );

    /* Check to see if we have a Simple MAPI provider loaded */
    if (mapiFunctions.MAPISendMail)
        return mapiFunctions.MAPISendMail(session, uiparam, message, flags, reserved);

    /* Check if we have an Extended MAPI provider - if so, use our wrapper */
    if (MAPIInitialize(NULL) == S_OK)
        return sendmail_extended_mapi(session, uiparam, message, flags, reserved);

    /* Fall back on our own implementation */
    if (!message) return MAPI_E_FAILURE;

    for (i = 0; i < message->nRecipCount; i++)
    {
        if (!message->lpRecips)
        {
            WARN("No recipients found\n");
            return MAPI_E_FAILURE;
        }

        address = message->lpRecips[i].lpszAddress;
        if (address)
        {
            switch (message->lpRecips[i].ulRecipClass)
            {
            case MAPI_ORIG:
                TRACE( "From: %s\n", debugstr_a(address) );
                break;
            case MAPI_TO:
                TRACE( "To: %s\n", debugstr_a(address) );
                to_size += lstrlenA( address ) + 1;
                break;
            case MAPI_CC:
                TRACE( "Cc: %s\n", debugstr_a(address) );
                cc_size += lstrlenA( address ) + 1;
                break;
            case MAPI_BCC:
                TRACE( "Bcc: %s\n", debugstr_a(address) );
                bcc_size += lstrlenA( address ) + 1;
                break;
            default:
                TRACE( "Unknown recipient class: %d\n",
                       message->lpRecips[i].ulRecipClass );
            }
        }
        else
            FIXME("Name resolution and entry identifiers not supported\n");
    }
    if (message->nFileCount) FIXME("Ignoring attachments\n");

    subject = message->lpszSubject ? message->lpszSubject : "";
    body = message->lpszNoteText ? message->lpszNoteText : "";

    TRACE( "Subject: %s\n", debugstr_a(subject) );
    TRACE( "Body: %s\n", debugstr_a(body) );

    subj_size = lstrlenA( subject );
    body_size = lstrlenA( body );

    ret = MAPI_E_INSUFFICIENT_MEMORY;
    if (to_size)
    {
        to = HeapAlloc( GetProcessHeap(), 0, to_size );
        if (!to) goto exit;
        to[0] = 0;
    }
    if (cc_size)
    {
        cc = HeapAlloc( GetProcessHeap(), 0, cc_size );
        if (!cc) goto exit;
        cc[0] = 0;
    }
    if (bcc_size)
    {
        bcc = HeapAlloc( GetProcessHeap(), 0, bcc_size );
        if (!bcc) goto exit;
        bcc[0] = 0;
    }

    if (message->lpOriginator)
        TRACE( "From: %s\n", debugstr_a(message->lpOriginator->lpszAddress) );

    for (i = 0; i < message->nRecipCount; i++)
    {
        address = message->lpRecips[i].lpszAddress;
        if (address)
        {
            switch (message->lpRecips[i].ulRecipClass)
            {
            case MAPI_TO:
                if (to_count) lstrcatA( to, "," );
                lstrcatA( to, address );
                to_count++;
                break;
            case MAPI_CC:
                if (cc_count) lstrcatA( cc, "," );
                lstrcatA( cc, address );
                cc_count++;
                break;
            case MAPI_BCC:
                if (bcc_count) lstrcatA( bcc, "," );
                lstrcatA( bcc, address );
                bcc_count++;
                break;
            }
        }
    }
    ret = MAPI_E_FAILURE;
    size = sizeof(format) + to_size + cc_size + bcc_size + subj_size + body_size;
    
    mailto = HeapAlloc( GetProcessHeap(), 0, size );
    if (!mailto) goto exit;

    sprintf( mailto, format, to ? to : "", subject, cc ? cc : "", bcc ? bcc : "", body );

    size = 1;
    res = UrlEscapeA( mailto, empty_string, &size, URL_ESCAPE_SPACES_ONLY );
    if (res != E_POINTER) goto exit;

    escape = HeapAlloc( GetProcessHeap(), 0, size );
    if (!escape) goto exit;

    res = UrlEscapeA( mailto, escape, &size, URL_ESCAPE_SPACES_ONLY );
    if (res != S_OK) goto exit;

    if ((UINT_PTR)ShellExecuteA( NULL, "open", escape, NULL, NULL, 0 ) > 32)
        ret = SUCCESS_SUCCESS;

exit:
    HeapFree( GetProcessHeap(), 0, to );
    HeapFree( GetProcessHeap(), 0, cc );
    HeapFree( GetProcessHeap(), 0, bcc );
    HeapFree( GetProcessHeap(), 0, mailto );
    HeapFree( GetProcessHeap(), 0, escape );

    return ret;
}

ULONG WINAPI MAPISendDocuments(ULONG_PTR uiparam, LPSTR delim, LPSTR paths,
    LPSTR filenames, ULONG reserved)
{
    if (mapiFunctions.MAPISendDocuments)
        return mapiFunctions.MAPISendDocuments(uiparam, delim, paths, filenames, reserved);

    return MAPI_E_NOT_SUPPORTED;
}

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