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/*
Miranda IM: the free IM client for Microsoft* Windows*
Copyright 2000-2003 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 "commonheaders.h"
#include "database.h"
#include <m_plugins.h>
struct MM_INTERFACE memoryManagerInterface;
extern char szDbPath[MAX_PATH];
HINSTANCE g_hInst=NULL;
PLUGINLINK *pluginLink;
static int getCapability( int flag )
{
return 0;
}
// returns 0 if the profile is created, EMKPRF*
static int makeDatabase(char * profile, int * error)
{
HANDLE hFile=CreateFile(profile, GENERIC_READ|GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, 0, NULL);
if ( hFile != INVALID_HANDLE_VALUE ) {
CreateDbHeaders(hFile);
CloseHandle(hFile);
return 0;
}
if ( error != NULL ) *error=EMKPRF_CREATEFAILED;
return 1;
}
// returns 0 if the given profile has a valid header
static int grokHeader( char * profile, int * error )
{
int rc=1;
int chk=0;
struct DBHeader hdr;
HANDLE hFile = INVALID_HANDLE_VALUE;
DWORD dummy=0;
hFile = CreateFile(profile, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
if ( hFile == INVALID_HANDLE_VALUE ) {
if ( error != NULL ) *error=EGROKPRF_CANTREAD;
return 1;
}
// read the header, which can fail (for various reasons)
if ( !ReadFile(hFile, &hdr, sizeof(struct DBHeader), &dummy, NULL) ) {
if ( error != NULL) *error=EGROKPRF_CANTREAD;
CloseHandle(hFile);
return 1;
}
chk=CheckDbHeaders(&hdr);
if ( chk == 0 ) {
// all the internal tests passed, hurrah
rc=0;
if ( error != NULL ) *error=0;
} else {
// didn't pass at all, or some did.
switch ( chk ) {
case 1:
{
// "Miranda ICQ DB" wasn't present
if ( error != NULL ) *error = EGROKPRF_UNKHEADER;
break;
}
case 2:
{
// header was present, but version information newer
if ( error != NULL ) *error= EGROKPRF_VERNEWER;
break;
}
case 3:
{
// header/version OK, internal data missing
if ( error != NULL ) *error=EGROKPRF_DAMAGED;
break;
}
} // switch
} //if
CloseHandle(hFile);
return rc;
}
// returns 0 if all the APIs are injected otherwise, 1
static int LoadDatabase( char * profile, void * plink )
{
PLUGINLINK *link = plink;
#ifdef _DEBUG
_CrtSetDbgFlag( _CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF);
#endif
// don't need thread notifications
strncpy(szDbPath, profile, sizeof(szDbPath));
// this is like Load()'s pluginLink
pluginLink=link;
// set the memory manager
memoryManagerInterface.cbSize=sizeof(struct MM_INTERFACE);
CallService(MS_SYSTEM_GET_MMI,0,(LPARAM)&memoryManagerInterface);
// inject all APIs and hooks into the core
return LoadDatabaseModule();
}
static int UnloadDatabase(int wasLoaded)
{
if ( !wasLoaded) return 0;
UnloadDatabaseModule();
return 0;
}
static int getFriendlyName( char * buf, size_t cch, int shortName )
{
strncpy(buf,shortName ? "Miranda database" : "Miranda database support",cch);
return 0;
}
static DATABASELINK dblink = {
sizeof(DATABASELINK),
getCapability,
getFriendlyName,
makeDatabase,
grokHeader,
LoadDatabase,
UnloadDatabase,
};
BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD dwReason, LPVOID reserved)
{
g_hInst=hInstDLL;
return TRUE;
}
__declspec(dllexport) DATABASELINK* DatabasePluginInfo(void * reserved)
{
return &dblink;
}
static PLUGININFO pluginInfo = {
sizeof(PLUGININFO),
"Miranda database - with AutoBackups",
PLUGIN_MAKE_VERSION(0,5,2,1),
"Provides Miranda database support: global settings, contacts, history, settings per contact.",
"Miranda-IM project",
"mail@scottellis.com.au",
"Copyright 2000-2005 Miranda-IM project",
"http://www.scottellis.com.au",
0,
DEFMOD_DB
};
__declspec(dllexport) PLUGININFO * MirandaPluginInfo(DWORD mirandaVersion)
{
if ( mirandaVersion < PLUGIN_MAKE_VERSION(0,4,0,0) ) return NULL;
return &pluginInfo;
}
int __declspec(dllexport) Load(PLUGINLINK * link)
{
return 1;
}
int __declspec(dllexport) Unload(void)
{
return 0;
}
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