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/* $Id$ */
#include "bbs.h"
#ifdef _BBS_UTIL_C_
#error sorry, mbbsd/cache.c does not support utility mode anymore. please use libcmbbs instead.
#endif
/*
* section - utmp cache
*/
void
getnewutmpent(const userinfo_t * up)
{
/* Ptt:這裡加上 hash 觀念找空的 utmp */
register int i;
register userinfo_t *uentp;
unsigned int p = StringHash(up->userid) % USHM_SIZE;
for (i = 0; i < USHM_SIZE; i++, p++) {
if (p == USHM_SIZE)
p = 0;
uentp = &(SHM->uinfo[p]);
if (!(uentp->pid)) {
memcpy(uentp, up, sizeof(userinfo_t));
currutmp = uentp;
return;
}
}
exit(1);
}
int
apply_ulist(int (*fptr) (const userinfo_t *))
{
register userinfo_t *uentp;
register int i, state;
for (i = 0; i < USHM_SIZE; i++) {
uentp = &(SHM->uinfo[i]);
if (uentp->pid && (PERM_HIDE(currutmp) || !PERM_HIDE(uentp)))
if ((state = (*fptr) (uentp)))
return state;
}
return 0;
}
int
count_logins(int uid, int show)
{
register int i = 0, j, start = 0, end = SHM->UTMPnumber - 1, count;
int *ulist;
userinfo_t *u;
if (end == -1)
return 0;
ulist = SHM->sorted[SHM->currsorted][7];
for (i = ((start + end) / 2);; i = (start + end) / 2) {
u = &SHM->uinfo[ulist[i]];
j = uid - u->uid;
if (!j) {
for (; i > 0 && uid == SHM->uinfo[ulist[i - 1]].uid; i--);
/* 指到第一筆 */
for (count = 0; (ulist[i + count] &&
(u = &SHM->uinfo[ulist[i + count]]) &&
uid == u->uid); count++) {
if (show)
prints("(%d) 目前狀態為: %-17.16s(來自 %s)\n",
count + 1, modestring(u, 0),
u->from);
}
return count;
}
if (end == start) {
break;
} else if (i == start) {
i = end;
start = end;
} else if (j > 0)
start = i;
else
end = i;
}
return 0;
}
void
purge_utmp(userinfo_t * uentp)
{
logout_friend_online(uentp);
memset(uentp, 0, sizeof(userinfo_t));
SHM->UTMPneedsort = 1;
}
void
setutmpmode(unsigned int mode)
{
if (currstat != mode)
currutmp->mode = currstat = mode;
/* 追蹤使用者 */
if (HasUserPerm(PERM_LOGUSER)) {
log_user("setutmpmode to %s(%d)\n", modestring(currutmp, 0), mode);
}
}
unsigned int
getutmpmode(void)
{
if (currutmp)
return currutmp->mode;
return currstat;
}
/*
* section - board
*/
/* HasBoardPerm() in board.c... */
int
apply_boards(int (*func) (boardheader_t *))
{
register int i;
register boardheader_t *bhdr;
for (i = 0, bhdr = bcache; i < numboards; i++, bhdr++) {
if (!(bhdr->brdattr & BRD_GROUPBOARD) && HasBoardPerm(bhdr) &&
(*func) (bhdr) == QUIT)
return QUIT;
}
return 0;
}
int is_BM_cache(int bid) /* bid starts from 1 */
{
assert(0<=bid-1 && bid-1<MAX_BOARD);
int *pbm = SHM->BMcache[bid-1];
// XXX potential issue: (thanks for mtdas@ptt)
// buildBMcache use -1 as "none".
// some function may call is_BM_cache early
// without having currutmp->uid (maybe?)
// and may get BM permission accidentally.
// quick check
if (!HasUserPerm(PERM_BASIC) || !currutmp->uid || currutmp->uid == -1)
return 0;
// XXX hard coded MAX_BMs=4
if( currutmp->uid == pbm[0] ||
currutmp->uid == pbm[1] ||
currutmp->uid == pbm[2] ||
currutmp->uid == pbm[3] )
{
// auto enable BM permission
if (!HasUserPerm(PERM_BM))
cuser.userlevel |= PERM_BM;
return 1;
}
return 0;
}
// TODO move this to board.c
const char *
postperm_msg(const char *bname)
{
register int i;
char buf[PATHLEN];
boardheader_t *bp = NULL;
if (!(i = getbnum(bname)))
return "看板不存在";
if (HasUserPerm(PERM_SYSOP))
return NULL;
setbfile(buf, bname, fn_water);
if (file_exist_record(buf, cuser.userid))
return "使用者水桶中";
if (!strcasecmp(bname, DEFAULT_BOARD))
return NULL;
assert(0<=i-1 && i-1<MAX_BOARD);
bp = getbcache(i);
if (bp->brdattr & BRD_GUESTPOST)
return NULL;
if (!HasUserPerm(PERM_POST))
return "無發文權限";
/* 秘密看板特別處理 */
if (bp->brdattr & BRD_HIDE)
return NULL;
else if (bp->brdattr & BRD_RESTRICTEDPOST &&
!is_hidden_board_friend(i, usernum))
return "看板限制發文";
if (HasUserPerm(PERM_VIOLATELAW))
{
// 在罰單的討論相關板可以發文
if (bp->level & PERM_VIOLATELAW)
return NULL;
else
return "罰單未繳";
}
if (!(bp->level & ~PERM_POST))
return NULL;
if (!HasUserPerm(bp->level & ~PERM_POST))
return "未達看板要求權限";
return NULL;
}
// TODO move this to board.c
int
haspostperm(const char *bname)
{
return postperm_msg(bname) == NULL ? 1 : 0;
}
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