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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
// $NoKeywords: $
//=============================================================================//
#include "cbase.h"
#include <string.h>
#include <stdio.h>
#include "voice_banmgr.h"
#include "filesystem.h"
#include "cdll_client_int.h"
// memdbgon must be the last include file in a .cpp file!!!
#include "tier0/memdbgon.h"
#define BANMGR_FILEVERSION 1
const char *g_pBanMgrFilename = "voice_ban.dt";
// Hash a player ID to a byte.
unsigned char HashPlayerID(char const playerID[SIGNED_GUID_LEN])
{
unsigned char curHash = 0;
for(int i=0; i < SIGNED_GUID_LEN; i++)
curHash = (unsigned char)(curHash + playerID[i]);
return curHash;
}
CVoiceBanMgr::CVoiceBanMgr()
{
Clear();
}
CVoiceBanMgr::~CVoiceBanMgr()
{
Term();
}
bool CVoiceBanMgr::Init(const char *pGameDir)
{
Term();
// Load in the squelch file.
FileHandle_t fh = filesystem->Open(g_pBanMgrFilename, "rb");
if (fh)
{
int version;
filesystem->Read(&version, sizeof(version), fh);
if(version == BANMGR_FILEVERSION && filesystem->Size(fh) > 4 )
{
int nIDs = ( filesystem->Size( fh ) - sizeof(version)) / SIGNED_GUID_LEN;
for(int i=0; i < nIDs; i++)
{
char playerID[SIGNED_GUID_LEN];
filesystem->Read(playerID, SIGNED_GUID_LEN, fh);
AddBannedPlayer(playerID);
}
}
filesystem->Close(fh);
}
return true;
}
void CVoiceBanMgr::Term()
{
// Free all the player structures.
for(int i=0; i < 256; i++)
{
BannedPlayer *pListHead = &m_PlayerHash[i];
BannedPlayer *pNext;
for(BannedPlayer *pCur=pListHead->m_pNext; pCur != pListHead; pCur=pNext)
{
pNext = pCur->m_pNext;
delete pCur;
}
}
Clear();
}
void CVoiceBanMgr::SaveState(const char *pGameDir)
{
// Save the file out.
FileHandle_t fh = filesystem->Open(g_pBanMgrFilename, "wb");
if(fh)
{
int version = BANMGR_FILEVERSION;
filesystem->Write(&version, sizeof(version), fh);
for(int i=0; i < 256; i++)
{
BannedPlayer *pListHead = &m_PlayerHash[i];
for(BannedPlayer *pCur=pListHead->m_pNext; pCur != pListHead; pCur=pCur->m_pNext)
{
filesystem->Write(pCur->m_PlayerID, SIGNED_GUID_LEN, fh);
}
}
filesystem->Close(fh);
}
}
bool CVoiceBanMgr::GetPlayerBan(char const playerID[SIGNED_GUID_LEN])
{
return !!InternalFindPlayerSquelch(playerID);
}
void CVoiceBanMgr::SetPlayerBan(char const playerID[SIGNED_GUID_LEN], bool bSquelch)
{
if(bSquelch)
{
// Is this guy already squelched?
if(GetPlayerBan(playerID))
return;
AddBannedPlayer(playerID);
}
else
{
BannedPlayer *pPlayer = InternalFindPlayerSquelch(playerID);
if(pPlayer)
{
pPlayer->m_pPrev->m_pNext = pPlayer->m_pNext;
pPlayer->m_pNext->m_pPrev = pPlayer->m_pPrev;
delete pPlayer;
}
}
}
void CVoiceBanMgr::Clear()
{
// Tie off the hash table entries.
for(int i=0; i < 256; i++)
m_PlayerHash[i].m_pNext = m_PlayerHash[i].m_pPrev = &m_PlayerHash[i];
// TODO memory leaks ???
}
CVoiceBanMgr::BannedPlayer* CVoiceBanMgr::InternalFindPlayerSquelch(char const playerID[SIGNED_GUID_LEN])
{
int index = HashPlayerID(playerID);
BannedPlayer *pListHead = &m_PlayerHash[index];
for(BannedPlayer *pCur=pListHead->m_pNext; pCur != pListHead; pCur=pCur->m_pNext)
{
if(memcmp(playerID, pCur->m_PlayerID, SIGNED_GUID_LEN) == 0)
return pCur;
}
return NULL;
}
CVoiceBanMgr::BannedPlayer* CVoiceBanMgr::AddBannedPlayer(char const playerID[SIGNED_GUID_LEN])
{
BannedPlayer *pNew = new BannedPlayer;
if(!pNew)
return NULL;
int index = HashPlayerID(playerID);
memcpy(pNew->m_PlayerID, playerID, SIGNED_GUID_LEN);
pNew->m_pNext = &m_PlayerHash[index];
pNew->m_pPrev = m_PlayerHash[index].m_pPrev;
pNew->m_pPrev->m_pNext = pNew->m_pNext->m_pPrev = pNew;
return pNew;
}
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