Sweden-Number/dlls/inetcomm/internettransport.c

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/*
* Internet Messaging Transport Base Class
*
* Copyright 2006 Robert Shearman 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
*/
#define COBJMACROS
#include <stdarg.h>
#include <stdio.h>
#include "windef.h"
#include "winbase.h"
#include "winnt.h"
#include "winsock2.h"
#include "ws2tcpip.h"
#include "wine/debug.h"
#include "inetcomm_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(inetcomm);
static const WCHAR wszClassName[] = {'T','h','o','r','C','o','n','n','W','n','d','C','l','a','s','s',0};
#define IX_READ (WM_USER + 0)
#define IX_READLINE (WM_USER + 1)
#define IX_WRITE (WM_USER + 2)
HRESULT InternetTransport_Init(InternetTransport *This)
{
This->pCallback = NULL;
This->Status = IXP_DISCONNECTED;
This->Socket = -1;
This->fCommandLogging = FALSE;
This->fnCompletion = NULL;
return S_OK;
}
HRESULT InternetTransport_GetServerInfo(InternetTransport *This, LPINETSERVER pInetServer)
{
if (This->Status == IXP_DISCONNECTED)
return IXP_E_NOT_CONNECTED;
memcpy(pInetServer, &This->ServerInfo, sizeof(*pInetServer));
return S_OK;
}
HRESULT InternetTransport_InetServerFromAccount(InternetTransport *This,
IImnAccount *pAccount, LPINETSERVER pInetServer)
{
FIXME("(%p, %p): stub\n", pAccount, pInetServer);
return E_NOTIMPL;
}
HRESULT InternetTransport_Connect(InternetTransport *This,
LPINETSERVER pInetServer, boolean fAuthenticate, boolean fCommandLogging)
{
struct addrinfo *ai;
struct addrinfo *ai_cur;
struct addrinfo hints;
int ret;
char szPort[10];
if (This->Status != IXP_DISCONNECTED)
return IXP_E_ALREADY_CONNECTED;
memcpy(&This->ServerInfo, pInetServer, sizeof(This->ServerInfo));
This->fCommandLogging = fCommandLogging;
This->hwnd = CreateWindowW(wszClassName, wszClassName, 0, 0, 0, 0, 0, NULL, NULL, NULL, 0);
if (!This->hwnd)
return HRESULT_FROM_WIN32(GetLastError());
SetWindowLongPtrW(This->hwnd, GWLP_USERDATA, (LONG_PTR)This);
hints.ai_flags = 0;
hints.ai_family = PF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
hints.ai_protocol = IPPROTO_TCP;
hints.ai_addrlen = 0;
hints.ai_addr = NULL;
hints.ai_canonname = NULL;
hints.ai_next = NULL;
snprintf(szPort, sizeof(szPort), "%d", (unsigned short)pInetServer->dwPort);
InternetTransport_ChangeStatus(This, IXP_FINDINGHOST);
ret = getaddrinfo(pInetServer->szServerName, szPort, &hints, &ai);
if (ret)
{
ERR("getaddrinfo failed: %d\n", ret);
return IXP_E_CANT_FIND_HOST;
}
for (ai_cur = ai; ai_cur; ai_cur = ai->ai_next)
{
if (TRACE_ON(inetcomm))
{
char host[256];
char service[256];
getnameinfo(ai_cur->ai_addr, ai_cur->ai_addrlen,
host, sizeof(host), service, sizeof(service),
NI_NUMERICHOST | NI_NUMERICSERV);
TRACE("trying %s:%s\n", host, service);
}
InternetTransport_ChangeStatus(This, IXP_CONNECTING);
This->Socket = socket(ai_cur->ai_family, ai_cur->ai_socktype, ai_cur->ai_protocol);
if (This->Socket < 0)
{
WARN("socket() failed\n");
continue;
}
/* FIXME: set to async */
if (0 > connect(This->Socket, ai_cur->ai_addr, ai_cur->ai_addrlen))
{
WARN("connect() failed\n");
closesocket(This->Socket);
continue;
}
InternetTransport_ChangeStatus(This, IXP_CONNECTED);
/* FIXME: call WSAAsyncSelect */
freeaddrinfo(ai);
TRACE("connected\n");
return S_OK;
}
freeaddrinfo(ai);
return IXP_E_CANT_FIND_HOST;
}
HRESULT InternetTransport_HandsOffCallback(InternetTransport *This)
{
if (!This->pCallback)
return S_FALSE;
ITransportCallback_Release(This->pCallback);
This->pCallback = NULL;
return S_OK;
}
HRESULT InternetTransport_DropConnection(InternetTransport *This)
{
int ret;
if (This->Status == IXP_DISCONNECTED)
return IXP_E_NOT_CONNECTED;
ret = shutdown(This->Socket, SD_BOTH);
ret = closesocket(This->Socket);
DestroyWindow(This->hwnd);
This->hwnd = NULL;
InternetTransport_ChangeStatus(This, IXP_DISCONNECTED);
return S_OK;
}
HRESULT InternetTransport_GetStatus(InternetTransport *This,
IXPSTATUS *pCurrentStatus)
{
*pCurrentStatus = This->Status;
return S_OK;
}
HRESULT InternetTransport_ChangeStatus(InternetTransport *This, IXPSTATUS Status)
{
This->Status = Status;
if (This->pCallback)
ITransportCallback_OnStatus(This->pCallback, Status,
(IInternetTransport *)&This->u.vtbl);
return S_OK;
}
HRESULT InternetTransport_Read(InternetTransport *This, int cbBuffer,
INETXPORT_COMPLETION_FUNCTION fnCompletion)
{
if (This->Status == IXP_DISCONNECTED)
return IXP_E_NOT_CONNECTED;
if (This->fnCompletion)
return IXP_E_BUSY;
This->fnCompletion = fnCompletion;
This->cbBuffer = cbBuffer;
This->pBuffer = HeapAlloc(GetProcessHeap(), 0, This->cbBuffer);
This->iCurrentBufferOffset = 0;
if (WSAAsyncSelect(This->Socket, This->hwnd, IX_READ, FD_READ) == SOCKET_ERROR)
{
ERR("WSAAsyncSelect failed with error %d\n", WSAGetLastError());
/* FIXME: handle error */
}
return S_OK;
}
HRESULT InternetTransport_ReadLine(InternetTransport *This,
INETXPORT_COMPLETION_FUNCTION fnCompletion)
{
if (This->Status == IXP_DISCONNECTED)
return IXP_E_NOT_CONNECTED;
if (This->fnCompletion)
return IXP_E_BUSY;
This->fnCompletion = fnCompletion;
This->cbBuffer = 1024;
This->pBuffer = HeapAlloc(GetProcessHeap(), 0, This->cbBuffer);
This->iCurrentBufferOffset = 0;
if (WSAAsyncSelect(This->Socket, This->hwnd, IX_READLINE, FD_READ) == SOCKET_ERROR)
{
ERR("WSAAsyncSelect failed with error %d\n", WSAGetLastError());
/* FIXME: handle error */
}
return S_OK;
}
HRESULT InternetTransport_Write(InternetTransport *This, const char *pvData,
int cbSize, INETXPORT_COMPLETION_FUNCTION fnCompletion)
{
int ret;
if (This->Status == IXP_DISCONNECTED)
return IXP_E_NOT_CONNECTED;
if (This->fnCompletion)
return IXP_E_BUSY;
/* FIXME: do this asynchronously */
ret = send(This->Socket, pvData, cbSize, 0);
if (ret == SOCKET_ERROR)
{
ERR("send failed with error %d\n", WSAGetLastError());
/* FIXME: handle error */
}
fnCompletion((IInternetTransport *)&This->u.vtbl, NULL, 0);
return S_OK;
}
static LRESULT CALLBACK InternetTransport_WndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
if (uMsg == IX_READ)
{
InternetTransport *This = (InternetTransport *)GetWindowLongPtrW(hwnd, GWLP_USERDATA);
/* no work to do */
if (!This->fnCompletion)
return 0;
while (This->iCurrentBufferOffset < This->cbBuffer)
{
if (recv(This->Socket, &This->pBuffer[This->iCurrentBufferOffset], 1, 0) <= 0)
{
if (WSAGetLastError() == WSAEWOULDBLOCK)
break;
ERR("recv failed with error %d\n", WSAGetLastError());
/* FIXME: handle error */
}
This->iCurrentBufferOffset++;
}
if (This->iCurrentBufferOffset == This->cbBuffer)
{
INETXPORT_COMPLETION_FUNCTION fnCompletion = This->fnCompletion;
char *pBuffer;
This->fnCompletion = NULL;
pBuffer = This->pBuffer;
This->pBuffer = NULL;
fnCompletion((IInternetTransport *)&This->u.vtbl, pBuffer,
This->iCurrentBufferOffset);
HeapFree(GetProcessHeap(), 0, pBuffer);
return 0;
}
if (WSAAsyncSelect(This->Socket, hwnd, uMsg, FD_READ) == SOCKET_ERROR)
{
ERR("WSAAsyncSelect failed with error %d\n", WSAGetLastError());
/* FIXME: handle error */
}
return 0;
}
else if (uMsg == IX_READLINE)
{
InternetTransport *This = (InternetTransport *)GetWindowLongPtrW(hwnd, GWLP_USERDATA);
/* no work to do */
if (!This->fnCompletion)
return 0;
while (This->iCurrentBufferOffset < This->cbBuffer - 1)
{
struct timeval tv;
fd_set infd;
if (recv(This->Socket, &This->pBuffer[This->iCurrentBufferOffset], 1, 0) <= 0)
{
if (WSAGetLastError() == WSAEWOULDBLOCK)
break;
ERR("recv failed with error %d\n", WSAGetLastError());
/* FIXME: handle error */
return 0;
}
if (This->pBuffer[This->iCurrentBufferOffset] == '\n')
{
INETXPORT_COMPLETION_FUNCTION fnCompletion = This->fnCompletion;
char *pBuffer;
This->fnCompletion = NULL;
This->pBuffer[This->iCurrentBufferOffset++] = '\0';
pBuffer = This->pBuffer;
This->pBuffer = NULL;
fnCompletion((IInternetTransport *)&This->u.vtbl, pBuffer,
This->iCurrentBufferOffset);
HeapFree(GetProcessHeap(), 0, pBuffer);
return 0;
}
if (This->pBuffer[This->iCurrentBufferOffset] != '\r')
This->iCurrentBufferOffset++;
FD_ZERO(&infd);
FD_SET(This->Socket, &infd);
tv.tv_sec = 0;
tv.tv_usec = 0;
}
if (This->iCurrentBufferOffset == This->cbBuffer - 1)
return 0;
if (WSAAsyncSelect(This->Socket, hwnd, uMsg, FD_READ) == SOCKET_ERROR)
{
ERR("WSAAsyncSelect failed with error %d\n", WSAGetLastError());
/* FIXME: handle error */
}
return 0;
}
else
return DefWindowProcW(hwnd, uMsg, wParam, lParam);
}
BOOL InternetTransport_RegisterClass(HINSTANCE hInstance)
{
WNDCLASSW cls;
WSADATA wsadata;
if (WSAStartup(MAKEWORD(2, 2), &wsadata))
return FALSE;
memset(&cls, 0, sizeof(cls));
cls.hInstance = hInstance;
cls.lpfnWndProc = InternetTransport_WndProc;
cls.lpszClassName = wszClassName;
return RegisterClassW(&cls);
}
void InternetTransport_UnregisterClass(HINSTANCE hInstance)
{
UnregisterClassW(wszClassName, hInstance);
WSACleanup();
}