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/*
Miranda IM: the free IM client for Microsoft* Windows*
Copyright 2000-2009 Miranda ICQ/IM project,
all portions of this codebase are copyrighted to the people
listed in contributors.txt.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "..\..\core\commonheaders.h"
#include <ctype.h>
#define DDEMESSAGETIMEOUT 1000
#define WNDCLASS_DDEMSGWINDOW _T("MirandaDdeMsgWindow")
struct DdeMsgWindowData {
int fAcked,fData;
HWND hwndDde;
};
static LRESULT CALLBACK DdeMessageWindow(HWND hwnd,UINT msg,WPARAM wParam,LPARAM lParam)
{
struct DdeMsgWindowData *dat;
ATOM hSzItem;
HGLOBAL hDdeData;
dat=(struct DdeMsgWindowData*)GetWindowLongPtr(hwnd,0);
switch(msg) {
case WM_DDE_ACK:
dat->fAcked=1;
dat->hwndDde=(HWND)wParam;
return 0;
case WM_DDE_DATA:
UnpackDDElParam(msg,lParam,(PUINT_PTR)&hDdeData,(PUINT_PTR)&hSzItem);
dat->fData=1;
if (hDdeData) {
DDEDATA *data;
int release;
data=(DDEDATA*)GlobalLock(hDdeData);
if (data->fAckReq) {
DDEACK ack={0};
PostMessage((HWND)wParam,WM_DDE_ACK,(WPARAM)hwnd,PackDDElParam(WM_DDE_ACK,*(PUINT)&ack,(UINT)hSzItem));
}
else GlobalDeleteAtom(hSzItem);
release=data->fRelease;
GlobalUnlock(hDdeData);
if (release) GlobalFree(hDdeData);
}
else GlobalDeleteAtom(hSzItem);
return 0;
}
return DefWindowProc(hwnd,msg,wParam,lParam);
}
static int DoDdeRequest(const char *szItemName,HWND hwndDdeMsg)
{
ATOM hSzItemName;
DWORD timeoutTick,thisTick;
MSG msg;
struct DdeMsgWindowData *dat=(struct DdeMsgWindowData*)GetWindowLongPtr(hwndDdeMsg,0);
hSzItemName=GlobalAddAtomA(szItemName);
if (!PostMessage(dat->hwndDde,WM_DDE_REQUEST,(WPARAM)hwndDdeMsg,MAKELPARAM(CF_TEXT,hSzItemName))) {
GlobalDeleteAtom(hSzItemName);
return 1;
}
timeoutTick=GetTickCount()+5000;
dat->fData=0; dat->fAcked=0;
do {
if (PeekMessage(&msg,NULL,0,0,PM_REMOVE)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
if (dat->fData || dat->fAcked) break;
thisTick=GetTickCount();
if (thisTick>timeoutTick) break;
} while (MsgWaitForMultipleObjects(0,NULL,FALSE,timeoutTick-thisTick,QS_ALLINPUT) == WAIT_OBJECT_0);
if (!dat->fData) {
GlobalDeleteAtom(hSzItemName);
return 1;
}
return 0;
}
//see Q160957 and http://developer.netscape.com/docs/manuals/communicator/DDE/index.htm
static int DdeOpenUrl(const char *szBrowser,char *szUrl,int newWindow,HWND hwndDdeMsg)
{
ATOM hSzBrowser,hSzTopic;
DWORD_PTR dwResult;
char *szItemName;
struct DdeMsgWindowData *dat=(struct DdeMsgWindowData*)GetWindowLongPtr(hwndDdeMsg,0);
hSzBrowser=GlobalAddAtomA(szBrowser);
hSzTopic=GlobalAddAtomA("WWW_OpenURL");
dat->fAcked=0;
if (!SendMessageTimeout(HWND_BROADCAST,WM_DDE_INITIATE,(WPARAM)hwndDdeMsg,MAKELPARAM(hSzBrowser,hSzTopic),SMTO_ABORTIFHUNG|SMTO_NORMAL,DDEMESSAGETIMEOUT,&dwResult)
|| !dat->fAcked) {
GlobalDeleteAtom(hSzTopic);
GlobalDeleteAtom(hSzBrowser);
return 1;
}
szItemName=(char*)mir_alloc(lstrlenA(szUrl)+7);
wsprintfA(szItemName,"\"%s\",,%d",szUrl,newWindow?0:-1);
if (DoDdeRequest(szItemName,hwndDdeMsg)) {
mir_free(szItemName);
GlobalDeleteAtom(hSzTopic);
GlobalDeleteAtom(hSzBrowser);
return 1;
}
PostMessage(dat->hwndDde,WM_DDE_TERMINATE,(WPARAM)hwndDdeMsg,0);
GlobalDeleteAtom(hSzTopic);
GlobalDeleteAtom(hSzBrowser);
mir_free(szItemName);
return 0;
}
typedef struct {
char *szUrl;
int newWindow;
} TOpenUrlInfo;
static void OpenURLThread(void *arg)
{
TOpenUrlInfo *hUrlInfo = (TOpenUrlInfo*)arg;
char *szResult;
HWND hwndDdeMsg;
struct DdeMsgWindowData msgWndData={0};
char *pszProtocol;
HKEY hKey;
char szSubkey[80];
char szCommandName[MAX_PATH];
DWORD dataLength;
int success=0;
if (!hUrlInfo->szUrl) return;
hwndDdeMsg=CreateWindow(WNDCLASS_DDEMSGWINDOW,_T(""),0,0,0,0,0,NULL,NULL,hMirandaInst,NULL);
SetWindowLongPtr(hwndDdeMsg,0,(LONG_PTR)&msgWndData);
if (!_strnicmp(hUrlInfo->szUrl,"ftp:",4) || !_strnicmp(hUrlInfo->szUrl,"ftp.",4)) pszProtocol="ftp";
if (!_strnicmp(hUrlInfo->szUrl,"mailto:",7)) pszProtocol="mailto";
if (!_strnicmp(hUrlInfo->szUrl,"news:",5)) pszProtocol="news";
else pszProtocol="http";
wsprintfA(szSubkey,"%s\\shell\\open\\command",pszProtocol);
if (RegOpenKeyExA(HKEY_CURRENT_USER,szSubkey,0,KEY_QUERY_VALUE,&hKey) == ERROR_SUCCESS
|| RegOpenKeyExA(HKEY_CLASSES_ROOT,szSubkey,0,KEY_QUERY_VALUE,&hKey) == ERROR_SUCCESS) {
dataLength=SIZEOF(szCommandName);
if (RegQueryValueEx(hKey,NULL,NULL,NULL,(PBYTE)szCommandName,&dataLength) == ERROR_SUCCESS) {
_strlwr(szCommandName);
if (strstr(szCommandName,"mozilla") || strstr(szCommandName,"netscape"))
success=(DdeOpenUrl("mozilla",hUrlInfo->szUrl,hUrlInfo->newWindow,hwndDdeMsg) == 0 || DdeOpenUrl("netscape",hUrlInfo->szUrl,hUrlInfo->newWindow,hwndDdeMsg) == 0);
else if (strstr(szCommandName,"iexplore") || strstr(szCommandName,"msimn"))
success=0 == DdeOpenUrl("iexplore",hUrlInfo->szUrl,hUrlInfo->newWindow,hwndDdeMsg);
else if (strstr(szCommandName,"opera"))
success=0 == DdeOpenUrl("opera",hUrlInfo->szUrl,hUrlInfo->newWindow,hwndDdeMsg);
//opera's the default anyway
}
RegCloseKey(hKey);
}
DestroyWindow(hwndDdeMsg);
if (success) return;
//wack a protocol on it
if ((isalpha(hUrlInfo->szUrl[0]) && hUrlInfo->szUrl[1] == ':') || hUrlInfo->szUrl[0] == '\\') {
szResult=(char*)mir_alloc(lstrlenA(hUrlInfo->szUrl)+9);
wsprintfA(szResult,"file:///%s",hUrlInfo->szUrl);
}
else {
int i;
for (i=0;isalpha(hUrlInfo->szUrl[i]);i++);
if (hUrlInfo->szUrl[i] == ':') szResult=mir_strdup(hUrlInfo->szUrl);
else {
if (!_strnicmp(hUrlInfo->szUrl,"ftp.",4)) {
szResult=(char*)mir_alloc(lstrlenA(hUrlInfo->szUrl)+7);
wsprintfA(szResult,"ftp://%s",hUrlInfo->szUrl);
}
else {
szResult=(char*)mir_alloc(lstrlenA(hUrlInfo->szUrl)+8);
wsprintfA(szResult,"http://%s",hUrlInfo->szUrl);
}
}
}
ShellExecuteA(NULL, "open", szResult, NULL, NULL, SW_SHOWDEFAULT);
mir_free(szResult);
mir_free(hUrlInfo->szUrl);
mir_free(hUrlInfo);
return;
}
static INT_PTR OpenURL(WPARAM wParam,LPARAM lParam) {
TOpenUrlInfo *hUrlInfo = (TOpenUrlInfo*)mir_alloc(sizeof(TOpenUrlInfo));
hUrlInfo->szUrl = (char*)lParam?mir_strdup((char*)lParam):NULL;
hUrlInfo->newWindow = (int)wParam;
forkthread(OpenURLThread, 0, (void*)hUrlInfo);
return 0;
}
int InitOpenUrl(void)
{
WNDCLASS wcl;
wcl.lpfnWndProc=DdeMessageWindow;
wcl.cbClsExtra=0;
wcl.cbWndExtra=sizeof(void*);
wcl.hInstance=hMirandaInst;
wcl.hCursor=NULL;
wcl.lpszClassName=WNDCLASS_DDEMSGWINDOW;
wcl.hbrBackground=NULL;
wcl.hIcon=NULL;
wcl.lpszMenuName=NULL;
wcl.style=0;
RegisterClass(&wcl);
CreateServiceFunction(MS_UTILS_OPENURL,OpenURL);
return 0;
}
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