dlls/inetcomm/internettransport.c

   1 /*
   2  * Internet Messaging Transport Base Class
   3  *
   4  * Copyright 2006 Robert Shearman for CodeWeavers
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #define COBJMACROS
  22
  23 #include <stdarg.h>
  24 #include <stdio.h>
  25
  26 #include "windef.h"
  27 #include "winbase.h"
  28 #include "winnt.h"
  29 #include "winuser.h"
  30 #include "winsock2.h"
  31 #include "ws2tcpip.h"
  32 #include "objbase.h"
  33 #include "ole2.h"
  34 #include "mimeole.h"
  35
  36 #include "wine/debug.h"
  37
  38 #include "inetcomm_private.h"
  39
  40 WINE_DEFAULT_DEBUG_CHANNEL(inetcomm);
  41
  42 static const WCHAR wszClassName[] = {'T','h','o','r','C','o','n','n','W','n','d','C','l','a','s','s',0};
  43
  44 #define IX_READ     (WM_USER + 0)
  45 #define IX_READLINE (WM_USER + 1)
  46 #define IX_WRITE    (WM_USER + 2)
  47
  48 HRESULT InternetTransport_Init(InternetTransport *This)
  49 {
  50     This->pCallback = NULL;
  51     This->Status = IXP_DISCONNECTED;
  52     This->Socket = -1;
  53     This->fCommandLogging = FALSE;
  54     This->fnCompletion = NULL;
  55
  56     return S_OK;
  57 }
  58
  59 HRESULT InternetTransport_GetServerInfo(InternetTransport *This, LPINETSERVER pInetServer)
  60 {
  61     if (This->Status == IXP_DISCONNECTED)
  62         return IXP_E_NOT_CONNECTED;
  63
  64     *pInetServer = This->ServerInfo;
  65     return S_OK;
  66 }
  67
  68 HRESULT InternetTransport_InetServerFromAccount(InternetTransport *This,
  69     IImnAccount *pAccount, LPINETSERVER pInetServer)
  70 {
  71     FIXME("(%p, %p): stub\n", pAccount, pInetServer);
  72     return E_NOTIMPL;
  73 }
  74
  75 HRESULT InternetTransport_Connect(InternetTransport *This,
  76     LPINETSERVER pInetServer, boolean fAuthenticate, boolean fCommandLogging)
  77 {
  78     struct addrinfo *ai;
  79     struct addrinfo *ai_cur;
  80     struct addrinfo hints;
  81     int ret;
  82     char szPort[10];
  83
  84     if (This->Status != IXP_DISCONNECTED)
  85         return IXP_E_ALREADY_CONNECTED;
  86
  87     This->ServerInfo = *pInetServer;
  88     This->fCommandLogging = fCommandLogging;
  89
  90     This->hwnd = CreateWindowW(wszClassName, wszClassName, 0, 0, 0, 0, 0, NULL, NULL, NULL, 0);
  91     if (!This->hwnd)
  92         return HRESULT_FROM_WIN32(GetLastError());
  93     SetWindowLongPtrW(This->hwnd, GWLP_USERDATA, (LONG_PTR)This);
  94
  95     hints.ai_flags          = 0;
  96     hints.ai_family         = PF_UNSPEC;
  97     hints.ai_socktype       = SOCK_STREAM;
  98     hints.ai_protocol       = IPPROTO_TCP;
  99     hints.ai_addrlen        = 0;
 100     hints.ai_addr           = NULL;
 101     hints.ai_canonname      = NULL;
 102     hints.ai_next           = NULL;
 103
 104     snprintf(szPort, sizeof(szPort), "%d", (unsigned short)pInetServer->dwPort);
 105
 106     InternetTransport_ChangeStatus(This, IXP_FINDINGHOST);
 107
 108     ret = getaddrinfo(pInetServer->szServerName, szPort, &hints, &ai);
 109     if (ret)
 110     {
 111         ERR("getaddrinfo failed: %d\n", ret);
 112         return IXP_E_CANT_FIND_HOST;
 113     }
 114
 115     for (ai_cur = ai; ai_cur; ai_cur = ai->ai_next)
 116     {
 117         int so;
 118
 119         if (TRACE_ON(inetcomm))
 120         {
 121             char host[256];
 122             char service[256];
 123             getnameinfo(ai_cur->ai_addr, ai_cur->ai_addrlen,
 124                 host, sizeof(host), service, sizeof(service),
 125                 NI_NUMERICHOST | NI_NUMERICSERV);
 126             TRACE("trying %s:%s\n", host, service);
 127         }
 128
 129         InternetTransport_ChangeStatus(This, IXP_CONNECTING);
 130
 131         so = socket(ai_cur->ai_family, ai_cur->ai_socktype, ai_cur->ai_protocol);
 132         if (so == -1)
 133         {
 134             WARN("socket() failed\n");
 135             continue;
 136         }
 137         This->Socket = so;
 138
 139         /* FIXME: set to async */
 140
 141         if (0 > connect(This->Socket, ai_cur->ai_addr, ai_cur->ai_addrlen))
 142         {
 143             WARN("connect() failed\n");
 144             closesocket(This->Socket);
 145             continue;
 146         }
 147         InternetTransport_ChangeStatus(This, IXP_CONNECTED);
 148
 149         /* FIXME: call WSAAsyncSelect */
 150
 151         freeaddrinfo(ai);
 152         TRACE("connected\n");
 153         return S_OK;
 154     }
 155
 156     freeaddrinfo(ai);
 157
 158     return IXP_E_CANT_FIND_HOST;
 159 }
 160
 161 HRESULT InternetTransport_HandsOffCallback(InternetTransport *This)
 162 {
 163     if (!This->pCallback)
 164         return S_FALSE;
 165
 166     ITransportCallback_Release(This->pCallback);
 167     This->pCallback = NULL;
 168
 169     return S_OK;
 170 }
 171
 172 HRESULT InternetTransport_DropConnection(InternetTransport *This)
 173 {
 174     int ret;
 175
 176     if (This->Status == IXP_DISCONNECTED)
 177         return IXP_E_NOT_CONNECTED;
 178
 179     ret = shutdown(This->Socket, SD_BOTH);
 180
 181     ret = closesocket(This->Socket);
 182
 183     DestroyWindow(This->hwnd);
 184     This->hwnd = NULL;
 185
 186     InternetTransport_ChangeStatus(This, IXP_DISCONNECTED);
 187
 188     return S_OK;
 189 }
 190
 191 HRESULT InternetTransport_GetStatus(InternetTransport *This,
 192     IXPSTATUS *pCurrentStatus)
 193 {
 194     *pCurrentStatus = This->Status;
 195     return S_OK;
 196 }
 197
 198 HRESULT InternetTransport_ChangeStatus(InternetTransport *This, IXPSTATUS Status)
 199 {
 200     This->Status = Status;
 201     if (This->pCallback)
 202         ITransportCallback_OnStatus(This->pCallback, Status,
 203             (IInternetTransport *)&This->u.vtbl);
 204     return S_OK;
 205 }
 206
 207 HRESULT InternetTransport_Read(InternetTransport *This, int cbBuffer,
 208     INETXPORT_COMPLETION_FUNCTION fnCompletion)
 209 {
 210     if (This->Status == IXP_DISCONNECTED)
 211         return IXP_E_NOT_CONNECTED;
 212
 213     if (This->fnCompletion)
 214         return IXP_E_BUSY;
 215
 216     This->fnCompletion = fnCompletion;
 217
 218     This->cbBuffer = cbBuffer;
 219     This->pBuffer = HeapAlloc(GetProcessHeap(), 0, This->cbBuffer);
 220     This->iCurrentBufferOffset = 0;
 221
 222     if (WSAAsyncSelect(This->Socket, This->hwnd, IX_READ, FD_READ) == SOCKET_ERROR)
 223     {
 224         ERR("WSAAsyncSelect failed with error %d\n", WSAGetLastError());
 225         /* FIXME: handle error */
 226     }
 227     return S_OK;
 228 }
 229
 230 HRESULT InternetTransport_ReadLine(InternetTransport *This,
 231     INETXPORT_COMPLETION_FUNCTION fnCompletion)
 232 {
 233     if (This->Status == IXP_DISCONNECTED)
 234         return IXP_E_NOT_CONNECTED;
 235
 236     if (This->fnCompletion)
 237         return IXP_E_BUSY;
 238
 239     This->fnCompletion = fnCompletion;
 240
 241     This->cbBuffer = 1024;
 242     This->pBuffer = HeapAlloc(GetProcessHeap(), 0, This->cbBuffer);
 243     This->iCurrentBufferOffset = 0;
 244
 245     if (WSAAsyncSelect(This->Socket, This->hwnd, IX_READLINE, FD_READ) == SOCKET_ERROR)
 246     {
 247         ERR("WSAAsyncSelect failed with error %d\n", WSAGetLastError());
 248         /* FIXME: handle error */
 249     }
 250     return S_OK;
 251 }
 252
 253 HRESULT InternetTransport_Write(InternetTransport *This, const char *pvData,
 254     int cbSize, INETXPORT_COMPLETION_FUNCTION fnCompletion)
 255 {
 256     int ret;
 257
 258     if (This->Status == IXP_DISCONNECTED)
 259         return IXP_E_NOT_CONNECTED;
 260
 261     if (This->fnCompletion)
 262         return IXP_E_BUSY;
 263
 264     /* FIXME: do this asynchronously */
 265     ret = send(This->Socket, pvData, cbSize, 0);
 266     if (ret == SOCKET_ERROR)
 267     {
 268         ERR("send failed with error %d\n", WSAGetLastError());
 269         /* FIXME: handle error */
 270     }
 271
 272     fnCompletion((IInternetTransport *)&This->u.vtbl, NULL, 0);
 273
 274     return S_OK;
 275 }
 276
 277 static LRESULT CALLBACK InternetTransport_WndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
 278 {
 279     if (uMsg == IX_READ)
 280     {
 281         InternetTransport *This = (InternetTransport *)GetWindowLongPtrW(hwnd, GWLP_USERDATA);
 282
 283         /* no work to do */
 284         if (!This->fnCompletion)
 285             return 0;
 286
 287         while (This->iCurrentBufferOffset < This->cbBuffer)
 288         {
 289             if (recv(This->Socket, &This->pBuffer[This->iCurrentBufferOffset], 1, 0) <= 0)
 290             {
 291                 if (WSAGetLastError() == WSAEWOULDBLOCK)
 292                     break;
 293
 294                 ERR("recv failed with error %d\n", WSAGetLastError());
 295                 /* FIXME: handle error */
 296             }
 297
 298             This->iCurrentBufferOffset++;
 299         }
 300         if (This->iCurrentBufferOffset == This->cbBuffer)
 301         {
 302             INETXPORT_COMPLETION_FUNCTION fnCompletion = This->fnCompletion;
 303             char *pBuffer;
 304
 305             This->fnCompletion = NULL;
 306             pBuffer = This->pBuffer;
 307             This->pBuffer = NULL;
 308             fnCompletion((IInternetTransport *)&This->u.vtbl, pBuffer,
 309                 This->iCurrentBufferOffset);
 310             HeapFree(GetProcessHeap(), 0, pBuffer);
 311             return 0;
 312         }
 313
 314         if (WSAAsyncSelect(This->Socket, hwnd, uMsg, FD_READ) == SOCKET_ERROR)
 315         {
 316             ERR("WSAAsyncSelect failed with error %d\n", WSAGetLastError());
 317             /* FIXME: handle error */
 318         }
 319         return 0;
 320     }
 321     else if (uMsg == IX_READLINE)
 322     {
 323         InternetTransport *This = (InternetTransport *)GetWindowLongPtrW(hwnd, GWLP_USERDATA);
 324
 325         /* no work to do */
 326         if (!This->fnCompletion)
 327             return 0;
 328
 329         while (This->iCurrentBufferOffset < This->cbBuffer - 1)
 330         {
 331             fd_set infd;
 332
 333             if (recv(This->Socket, &This->pBuffer[This->iCurrentBufferOffset], 1, 0) <= 0)
 334             {
 335                 if (WSAGetLastError() == WSAEWOULDBLOCK)
 336                     break;
 337
 338                 ERR("recv failed with error %d\n", WSAGetLastError());
 339                 /* FIXME: handle error */
 340                 return 0;
 341             }
 342
 343             if (This->pBuffer[This->iCurrentBufferOffset] == '\n')
 344             {
 345                 INETXPORT_COMPLETION_FUNCTION fnCompletion = This->fnCompletion;
 346                 char *pBuffer;
 347
 348                 This->fnCompletion = NULL;
 349                 This->pBuffer[This->iCurrentBufferOffset++] = '\0';
 350                 pBuffer = This->pBuffer;
 351                 This->pBuffer = NULL;
 352
 353                 fnCompletion((IInternetTransport *)&This->u.vtbl, pBuffer,
 354                     This->iCurrentBufferOffset);
 355
 356                 HeapFree(GetProcessHeap(), 0, pBuffer);
 357                 return 0;
 358             }
 359             if (This->pBuffer[This->iCurrentBufferOffset] != '\r')
 360                 This->iCurrentBufferOffset++;
 361
 362             FD_ZERO(&infd);
 363             FD_SET(This->Socket, &infd);
 364         }
 365         if (This->iCurrentBufferOffset == This->cbBuffer - 1)
 366             return 0;
 367
 368         if (WSAAsyncSelect(This->Socket, hwnd, uMsg, FD_READ) == SOCKET_ERROR)
 369         {
 370             ERR("WSAAsyncSelect failed with error %d\n", WSAGetLastError());
 371             /* FIXME: handle error */
 372         }
 373         return 0;
 374     }
 375     else
 376         return DefWindowProcW(hwnd, uMsg, wParam, lParam);
 377 }
 378
 379 BOOL InternetTransport_RegisterClass(HINSTANCE hInstance)
 380 {
 381     WNDCLASSW cls;
 382     WSADATA wsadata;
 383
 384     if (WSAStartup(MAKEWORD(2, 2), &wsadata))
 385         return FALSE;
 386
 387     memset(&cls, 0, sizeof(cls));
 388     cls.hInstance     = hInstance;
 389     cls.lpfnWndProc   = InternetTransport_WndProc;
 390     cls.lpszClassName = wszClassName;
 391
 392     return RegisterClassW(&cls);
 393 }
 394
 395 void InternetTransport_UnregisterClass(HINSTANCE hInstance)
 396 {
 397     UnregisterClassW(wszClassName, hInstance);
 398     WSACleanup();
 399 }