path: root/mbbsd/register.c

/* $Id$ */
#define PWCU_IMPL
#include "bbs.h"

#define FN_REGISTER_LOG  "register.log" // global registration history
#define FN_REJECT_NOTIFY "justify.reject"
#define FN_NOTIN_WHITELIST_NOTICE "etc/whitemail.notice"

// Regform1 file name (deprecated)
#define fn_register "register.new"

// New style (Regform2) file names:
#define FN_REGFORM  "regform"   // registration form in user home
#define FN_REGFORM_LOG  "regform.log"   // regform history in user home
#define FN_REQLIST  "reg.wait"  // request list file, in global directory (replacing fn_register)

#define FN_REJECT_NOTES "etc/reg_reject.notes"
#define REGNOTES_ROOT "etc/regnotes/"   // a folder to hold detail description

#define FN_JOBSPOOL_DIR "jobspool/"

// #define DBG_DISABLE_CHECK    // disable all input checks
// #define DBG_DRYRUN   // Dry-run test (mainly for RegForm2)

#define MSG_ERR_MAXTRIES "您嘗試錯誤的輸入次數太多，請下次再來吧"
#define MSG_ERR_TOO_OLD  "年份可能有誤。 若這是您的真實生日請另行通知站務處理"
#define MSG_ERR_TOO_YOUNG "年份有誤。 嬰兒/未出生應該無法使用 BBS..."
#define DATE_SAMPLE  "1911/2/29"

////////////////////////////////////////////////////////////////////////////
// Value Validation
////////////////////////////////////////////////////////////////////////////
static int 
HaveRejectStr(const char *s, const char **rej)
{
    int     i;
    char    *rejectstr[] =
    {"幹", "不", "你媽", "某", "笨", "呆", "..", "xx",
     "你管", "管我", "猜", "天才", "超人", 
     /* "阿",  (某些住址有) */
     "ㄅ", "ㄆ", "ㄇ", "ㄈ", "ㄉ", "ㄊ", "ㄋ", "ㄌ", "ㄍ", "ㄎ", "ㄏ",
     "ㄐ", "ㄑ", "ㄒ", "ㄓ", "ㄔ", "ㄕ", "ㄖ", "ㄗ", "ㄘ", "ㄙ",
     "ㄧ", "ㄨ", "ㄩ", "ㄚ", "ㄛ", "ㄜ", "ㄝ", "ㄞ", "ㄟ", "ㄠ", "ㄡ",
     "ㄢ", "ㄣ", "ㄤ", "ㄥ", "ㄦ", NULL};

    if( rej != NULL )
    for( i = 0 ; rej[i] != NULL ; ++i )
        if( DBCS_strcasestr(s, rej[i]) )
        return 1;

    for( i = 0 ; rejectstr[i] != NULL ; ++i )
    if( DBCS_strcasestr(s, rejectstr[i]) )
        return 1;

    return 0;
}

static int
removespace(char *s)
{
    int             i, index;

    for (i = 0, index = 0; s[i]; i++) {
    if (s[i] != ' ')
        s[index++] = s[i];
    }
    s[index] = '\0';
    return index;
}

int
reserved_user_id(const char *userid)
{
    if (file_exist_record(FN_CONF_RESERVED_ID, userid))
       return 1;
    return 0;
}

int
bad_user_id(const char *userid)
{
    if(!is_validuserid(userid))
    return 1;

#if defined(STR_REGNEW)
    if (strcasecmp(userid, STR_REGNEW) == 0)
    return 1;
#endif

#if defined(STR_GUEST) && !defined(NO_GUEST_ACCOUNT_REG)
    if (strcasecmp(userid, STR_GUEST) == 0)
    return 1;
#endif

    /* in2: 原本是用strcasestr,
            不過有些人中間剛剛好出現這個字應該還算合理吧? */
    if( strncasecmp(userid, "fuck", 4) == 0 ||
        strncasecmp(userid, "shit", 4) == 0 )
    return 1;

    /*
     * while((ch = *(++userid))) if(not_alnum(ch)) return 1;
     */
    return 0;
}

static char *
isvalidname(char *rname)
{
#ifdef FOREIGN_REG
    return NULL;
#else
    const char    *rejectstr[] =
    {"肥", "胖", "豬頭", "小白", "小明", "路人", "老王", "老李", "寶貝",
     "先生", "帥哥", "老頭", "小姊", "小姐", "美女", "小妹", "大頭", 
     "公主", "同學", "寶寶", "公子", "大頭", "小小", "小弟", "小妹",
     "妹妹", "嘿", "嗯", "爺爺", "大哥", "無",
     NULL};
    if( removespace(rname) && rname[0] < 0 &&
    strlen(rname) >= 4 &&
    !HaveRejectStr(rname, rejectstr) &&
    strncmp(rname, "小", 2) != 0   && //起頭是「小」
    strncmp(rname, "我是", 4) != 0 && //起頭是「我是」
    !(strlen(rname) == 4 && strncmp(&rname[2], "兒", 2) == 0) &&
    !(strlen(rname) >= 4 && strncmp(&rname[0], &rname[2], 2) == 0))
    return NULL;
    return "您的輸入似乎不正確";
#endif

}

static char *
isvalidcareer(char *career)
{
#ifndef FOREIGN_REG
    const char    *rejectstr[] = {NULL};
    if (!(career[0] < 0 && strlen(career) >= 6) ||
    strcmp(career, "家裡") == 0 || HaveRejectStr(career, rejectstr) )
    return "您的輸入似乎不正確";
    if (strcmp(&career[strlen(career) - 2], "大") == 0 ||
    strcmp(&career[strlen(career) - 4], "大學") == 0 ||
    strcmp(career, "學生大學") == 0)
    return "麻煩請加學校系所";
    if (strcmp(career, "學生高中") == 0)
    return "麻煩輸入學校名稱";
#else
    if( strlen(career) < 6 )
    return "您的輸入不正確";
#endif
    if (DBCS_strcasestr(career, "學") && 
    DBCS_strcasestr(career, "系") &&
    DBCS_strcasestr(career, "級") == 0 && 
    (DBCS_strcasestr(career, "畢") == 0 && 
     DBCS_strcasestr(career, "肄") == 0))
    return "請加上年級";
    return NULL;
}

static int
strlen_without_space(const char *s)
{
    int i = 0;
    while (*s)
    if (*s++ != ' ') i++;
    return i;
}

static char *
isvalidaddr(char *addr)
{
    const char    *rejectstr[] =
    {"地球", "銀河", "火星", NULL};

#ifdef DBG_DISABLE_CHECK
    return NULL;
#endif // DBG_DISABLE_CHECK

    // addr[0] > 0: check if address is starting by Chinese.
    if (DBCS_strcasestr(addr, "信箱") != 0 || DBCS_strcasestr(addr, "郵政") != 0) 
    return "抱歉我們不接受郵政信箱";
    if (strlen_without_space(addr) < 15 ||
    (DBCS_strcasestr(addr, "市") == 0 && 
     DBCS_strcasestr(addr, "巿") == 0 &&
     DBCS_strcasestr(addr, "縣") == 0 && 
     DBCS_strcasestr(addr, "室") == 0) ||
    strcmp(&addr[strlen(addr) - 2], "段") == 0 ||
    strcmp(&addr[strlen(addr) - 2], "路") == 0 ||
    strcmp(&addr[strlen(addr) - 2], "巷") == 0 ||
    strcmp(&addr[strlen(addr) - 2], "弄") == 0 ||
    strcmp(&addr[strlen(addr) - 2], "區") == 0 ||
    strcmp(&addr[strlen(addr) - 2], "市") == 0 ||
    strcmp(&addr[strlen(addr) - 2], "街") == 0 )
    return "這個地址似乎並不完整";
    if (HaveRejectStr(addr, rejectstr))
    return "這個地址似乎有誤";
    return NULL;
}

static char *
isvalidphone(char *phone)
{
    int     i;

#ifdef DBG_DISABLE_CHECK
    return NULL;
#endif // DBG_DISABLE_CHECK

    for( i = 0 ; phone[i] != 0 ; ++i )
    if( !isdigit((int)phone[i]) )
        return "請不要加分隔符號";
    if (!removespace(phone) || 
    strlen(phone) < 9 || 
    strstr(phone, "00000000") != NULL ||
    strstr(phone, "22222222") != NULL    ) {
    return "這個電話號碼並不正確(請含區碼)" ;
    }
    return NULL;
}


////////////////////////////////////////////////////////////////////////////
// Account Expiring
////////////////////////////////////////////////////////////////////////////

/* -------------------------------- */
/* New policy for allocate new user */
/* (a) is the worst user currently  */
/* (b) is the object to be compared */
/* -------------------------------- */
static int
compute_user_value(const userec_t * urec, time4_t clock)
{
    int             value;

    /* if (urec) has XEMPT permission, don't kick it */
    if ((urec->userid[0] == '\0') || (urec->userlevel & PERM_XEMPT)
    /* || (urec->userlevel & PERM_LOGINOK) */
    || !strcmp(STR_GUEST, urec->userid))
    return 999999;
    value = (clock - urec->lastlogin) / 60; /* minutes */

#ifdef STR_REGNEW
    /* new user should register in 30 mins */
    // XXX 目前 new acccount 並不會在 utmp 裡放 STR_REGNEW...
    if (strcmp(urec->userid, STR_REGNEW) == 0)
    return 30 - value;
#endif

    /* 未完成註冊者，保留 15 天 */
    /* 一般情況，保留 120 天 */
    return (urec->userlevel & PERM_LOGINOK ? 120 : 15) * 24 * 60 - value;
}

int
check_and_expire_account(int uid, const userec_t * urec, int expireRange)
{
    char            genbuf[200];
    int             val;
    if ((val = compute_user_value(urec, now)) < 0) {
    snprintf(genbuf, sizeof(genbuf), "#%d %-12s %s %d %d %d",
         uid, urec->userid, Cdatelite(&(urec->lastlogin)),
         urec->numlogindays, urec->numposts, val);

    // 若超過 expireRange 則砍人，
    // 不然就 return 0
    if (-val > expireRange)
    {
        log_usies("DATED", genbuf);
        // log_usies("CLEAN", genbuf);
        kill_user(uid, urec->userid);
    } else val = 0;
    }
    return val;
}

////////////////////////////////////////////////////////////////////////////
// Regcode Support
////////////////////////////////////////////////////////////////////////////

#define REGCODE_INITIAL "v6" // always 2 characters

static char *
getregfile(char *buf)
{
    // not in user's home because s/he could zip his/her home
    snprintf(buf, PATHLEN, FN_JOBSPOOL_DIR ".regcode.%s", cuser.userid);
    return buf;
}

static char *
makeregcode(char *buf)
{
    char    fpath[PATHLEN];
    int     fd, i;
    // prevent ambigious characters: oOlI
    const char *alphabet = "qwertyuipasdfghjkzxcvbnmoQWERTYUPASDFGHJKLZXCVBNM";

    /* generate a new regcode */
    buf[13] = 0;
    buf[0] = REGCODE_INITIAL[0];
    buf[1] = REGCODE_INITIAL[1];
    for( i = 2 ; i < 13 ; ++i )
    buf[i] = alphabet[random() % strlen(alphabet)];

    getregfile(fpath);
    if( (fd = open(fpath, O_WRONLY | O_CREAT, 0600)) == -1 ){
    perror("open");
    exit(1);
    }
    write(fd, buf, 13);
    close(fd);

    return buf;
}

static char *
getregcode(char *buf)
{
    int     fd;
    char    fpath[PATHLEN];

    getregfile(fpath);
    if( (fd = open(fpath, O_RDONLY)) == -1 ){
    buf[0] = 0;
    return buf;
    }
    read(fd, buf, 13);
    close(fd);
    buf[13] = 0;
    return buf;
}

void
delregcodefile(void)
{
    char    fpath[PATHLEN];
    getregfile(fpath);
    unlink(fpath);
}


////////////////////////////////////////////////////////////////////////////
// Figlet Captcha System
////////////////////////////////////////////////////////////////////////////
#ifdef USE_FIGLET_CAPTCHA

static int
gen_captcha(char *buf, int szbuf, char *fpath)
{
    // do not use: GQV
    const char *alphabet = "ABCDEFHIJKLMNOPRSTUWXYZ";
    int calphas = strlen(alphabet);
    char cmd[PATHLEN], opts[PATHLEN];
    int i, coptSpace, coptFont;
    static const char *optSpace[] = {
    "-S", "-s", "-k", "-W", 
    // "-o",
    NULL
    };
    static const char *optFont[] = {
    "banner", "big", "slant", "small",
    "smslant", "standard",
    // block family
    "block", "lean",
    // shadow family
    // "shadow", "smshadow",
    // mini (better with large spacing)
    // "mini", 
    NULL
    };

    // fill captcha code
    for (i = 0; i < szbuf-1; i++)
    buf[i] = alphabet[random() % calphas];
    buf[i] = 0; // szbuf-1

    // decide options
    coptSpace = coptFont = 0;
    while (optSpace[coptSpace]) coptSpace++;
    while (optFont[coptFont]) coptFont++;
    snprintf(opts, sizeof(opts),
        "%s -f %s", 
        optSpace[random() % coptSpace],
        optFont [random() % coptFont ]);

    // create file
    snprintf(fpath, PATHLEN, FN_JOBSPOOL_DIR ".captcha.%s", buf);
    snprintf(cmd, sizeof(cmd), FIGLET_PATH " %s %s > %s",
        opts, buf, fpath);

    // vmsg(cmd);
    if (system(cmd) != 0)
    return 0;

    return 1;
}


static int
_vgetcb_data_upper(int key, VGET_RUNTIME *prt, void *instance)
{
    if (key >= 'a' && key <= 'z')
    key = toupper(key);
    if (key < 'A' || key > 'Z')
    {
    bell();
    return VGETCB_NEXT;
    }
    return VGETCB_NONE;
}

static int
_vgetcb_data_post(int key, VGET_RUNTIME *prt, void *instance)
{
    char *s = prt->buf;
    while (*s)
    {
    if (isascii(*s) && islower(*s))
        *s = toupper(*s);
    s++;
    }
    return VGETCB_NONE;
}


static int verify_captcha()
{
    char captcha[7] = "", code[STRLEN];
    char fpath[PATHLEN];
    VGET_CALLBACKS vge = { NULL, _vgetcb_data_upper, _vgetcb_data_post };
    int tries = 0, i;

    do {
    // create new captcha
    if (tries % 2 == 0 || !captcha[0])
    {
        // if generation failed, skip captcha.
        if (!gen_captcha(captcha, sizeof(captcha), fpath) ||
            !dashf(fpath))
        return 1;

        // prompt user about captcha
        vs_hdr("CAPTCHA 認證程序");
        outs("為了確認您的註冊程序，請輸入下面圖樣顯示的文字。\n"
            "圖樣只會由大寫的 A-Z 英文字母組成。\n\n");
        show_file(fpath, 4, b_lines-5, SHOWFILE_ALLOW_ALL);
        unlink(fpath);
    }

    // each run waits 10 seconds.
    for (i = 10; i > 0; i--)
    {
        move(b_lines-1, 0); clrtobot();
        prints("請仔細檢查上面的圖形， %d 秒後即可輸入...", i);
        // flush out current input
        doupdate(); 
        peek_input(0.1f, Ctrl('C'));
        drop_input();
        sleep(1);
    }

    // input captcha
    move(b_lines-1, 0); clrtobot();
    prints("請輸入圖樣顯示的 %d 個英文字母: ", (int)strlen(captcha));
    vgetstring(code, strlen(captcha)+1, 0, "", &vge, NULL);

    if (code[0] && strcasecmp(code, captcha) == 0)
        break;

    // error case.
    if (++tries >= 10)
        return 0;

    // error
    vmsg("輸入錯誤，請重試。注意組成文字全是大寫英文字母。");

    } while (1);

    clear();
    return 1;
}
#else // !USE_FIGLET_CAPTCHA

static int 
verify_captcha()
{
    return 1;
}

#endif // !USE_FIGLET_CAPTCHA

////////////////////////////////////////////////////////////////////////////
// Justify Utilities
////////////////////////////////////////////////////////////////////////////

static void 
email_justify(const userec_t *muser)
{
    char buf[256], genbuf[256];
    /* 
     * It is intended to use BBSENAME instead of BBSNAME here.
     * Because recently many poor users with poor mail clients
     * (or evil mail servers) cannot handle/decode Chinese 
     * subjects (BBSNAME) correctly, so we'd like to use 
     * BBSENAME here to prevent subject being messed up.
     * And please keep BBSENAME short or it may be truncated
     * by evil mail servers.
     */
    snprintf(buf, sizeof(buf),
         " " BBSENAME " - [ %s ]", makeregcode(genbuf));

    bsmtp("etc/registermail", buf, muser->email, "non-exist");
        move(20,0);
        clrtobot();
    outs("我們即將寄出認證信 (您應該會在 10 分鐘內收到)\n"
         "收到後您可以根據認證信標題的認證碼\n"
         "輸入到 (U)ser -> (R)egister 後就可以完成註冊");
    pressanykey();
    return;
}


/* 使用者填寫註冊表格 */
static void
getfield(int line, const char *info, const char *notes_fn, const char *desc, char *buf, int len)
{
    char            prompt[STRLEN];
    char            genbuf[PATHLEN];

    // clear first
    move(line, 0); clrtobot();
    // notes appear in line+3 (+0=msg, +1=input, +2=blank)
    if (dashs(notes_fn) > 0 && (line+3) < b_lines )
    {
    show_file(notes_fn, line+3, t_lines - (line+3), SHOWFILE_ALLOW_ALL);
    }
    move(line, 0); prints("  原先設定：%-30.30s (%s)", buf, info);
    snprintf(prompt, sizeof(prompt), 
#ifdef USE_PFTERM
        ANSI_COLOR(1) ">>%s" ANSI_RESET "：", 
#else
        ">>%s：", 
#endif
        desc);
    if (getdata_str(line + 1, 0, prompt, genbuf, len, DOECHO, buf))
    strcpy(buf, genbuf);
    move(line, 0); clrtobot();
    prints("  %s：%s\n", desc, buf);
}


int
setupnewuser(const userec_t *user)
{
    char            genbuf[50];
    char           *fn_fresh = ".fresh";
    userec_t        utmp;
    time_t          clock;
    struct stat     st;
    int             fd, uid;

    clock = now;

    // XXX race condition...
    if (dosearchuser(user->userid, NULL))
    {
    vmsg("手腳不夠快，別人已經搶走了！");
    exit(1);
    }

    /* Lazy method : 先找尋已經清除的過期帳號 */
    if ((uid = dosearchuser("", NULL)) == 0) {
    /* 每 1 個小時，清理 user 帳號一次 */
    if ((stat(fn_fresh, &st) == -1) || (st.st_mtime < clock - 3600)) {
        if ((fd = open(fn_fresh, O_RDWR | O_CREAT, 0600)) == -1)
        return -1;
        write(fd, ctime(&clock), 25);
        close(fd);
        log_usies("CLEAN", "dated users");

        fprintf(stdout, "尋找新帳號中, 請稍待片刻...\n\r");

        if ((fd = open(fn_passwd, O_RDWR | O_CREAT, 0600)) == -1)
        return -1;

        /* 不曉得為什麼要從 2 開始... Ptt:因為SYSOP在1 */
        for (uid = 2; uid <= MAX_USERS; uid++) {
        passwd_sync_query(uid, &utmp);
        // tolerate for one year.
        check_and_expire_account(uid, &utmp, 365*12*60);
        }
    }
    }

    /* initialize passwd semaphores */
    if (passwd_init())
    exit(1);

    passwd_lock();

    uid = dosearchuser("", NULL);
    if ((uid <= 0) || (uid > MAX_USERS)) {
    passwd_unlock();
    vmsg("抱歉，本站使用者帳號總數已達上限，暫時無法註冊新帳號。");
    exit(1);
    }

    setuserid(uid, user->userid);
    snprintf(genbuf, sizeof(genbuf), "uid %d", uid);
    log_usies("APPLY", genbuf);

    SHM->money[uid - 1] = user->money;

    if (passwd_sync_update(uid, (userec_t *)user) == -1) {
    passwd_unlock();
    vmsg("客滿了，再見！");
    exit(1);
    }

    passwd_unlock();

    return uid;
}

/////////////////////////////////////////////////////////////////////////////
// New Registration (Phase 1: Create Account)
/////////////////////////////////////////////////////////////////////////////

void
new_register(void)
{
    userec_t        newuser;
    char            passbuf[STRLEN];
    int             try, id, uid;
    char       *errmsg = NULL;

#ifdef HAVE_USERAGREEMENT
    int haveag = more(HAVE_USERAGREEMENT, YEA);
    while( haveag != -1 ){
    int c = vans("請問您接受這份使用者條款嗎? (yes/no) ");
    if (c == 'y')
        break;
    else if (c == 'n')
    {
        vmsg("抱歉, 您須要接受使用者條款才能註冊帳號享受我們的服務唷!");
        exit(1);
    }
    vmsg("請輸入 y表示接受, n表示不接受");
    }
#endif

    // setup newuser
    memset(&newuser, 0, sizeof(newuser));
    newuser.version = PASSWD_VERSION;
    newuser.userlevel = PERM_DEFAULT;
    newuser.uflag = BRDSORT_FLAG | MOVIE_FLAG;
    newuser.uflag2 = 0;
    newuser.firstlogin = newuser.lastlogin = now;
    newuser.pager = PAGER_ON;
    strlcpy(newuser.lasthost, fromhost, sizeof(newuser.lasthost));

#ifdef DBCSAWARE
    if(u_detectDBCSAwareEvilClient())
    newuser.uflag &= ~DBCSAWARE_FLAG;
    else
    newuser.uflag |= DBCSAWARE_FLAG;
#endif

    more("etc/register", NA);
    try = 0;
    while (1) {
        userec_t xuser;
    int minute;

    if (++try >= 6) {
        vmsg(MSG_ERR_MAXTRIES);
        exit(1);
    }
    getdata(17, 0, msg_uid, newuser.userid,
        sizeof(newuser.userid), DOECHO);
        strcpy(passbuf, newuser.userid);

    if (bad_user_id(passbuf))
        outs("無法接受這個代號，請使用英文字母，並且不要包含空格\n");
    else if ((id = getuser(passbuf, &xuser)) &&
        // >=: see check_and_expire_account definition
         (minute = check_and_expire_account(id, &xuser, 0)) >= 0) 
    {
        if (minute == 999999) // XXX magic number.  It should be greater than MAX_USERS at least.
        outs("此代號已經有人使用 是不死之身");
        else {
        prints("此代號已經有人使用 還有 %d 天才過期 \n", 
            minute / (60 * 24) + 1);
        }
    } 
    else if (reserved_user_id(passbuf))
        outs("此代號已由系統保留，請使用別的代號\n");
#if !defined(NO_CHECK_AMBIGUOUS_USERID) && defined(USE_REGCHECKD)
    // XXX if we check id == 0 here, replacing an expired id will be delayed.
    else if (/*id == 0 && */ 
         regcheck_ambiguous_userid_exist(passbuf) > 0) // ignore if error occurs
        outs("此代號過於近似它人帳號，請改用別的代號。\n");
#endif
    else // success
        break;
    }

    // XXX 記得最後 create account 前還要再檢查一次 acc

    try = 0;
    while (1) {
    if (++try >= 6) {
        vmsg(MSG_ERR_MAXTRIES);
        exit(1);
    }
    move(20, 0); clrtoeol();
    outs(ANSI_COLOR(1;33) 
    "為避免被偷看，您的密碼並不會顯示在畫面上，直接輸入完後按 Enter 鍵即可。\n"
    "另外請注意密碼只有前八個字元有效，超過的將自動忽略。"
    ANSI_RESET);
    if ((getdata(18, 0, "請設定密碼：", passbuf,
             sizeof(passbuf), NOECHO) < 3) ||
        !strcmp(passbuf, newuser.userid)) {
        outs("密碼太簡單，易遭入侵，至少要 4 個字，請重新輸入\n");
        continue;
    }
    strlcpy(newuser.passwd, passbuf, PASSLEN);
    getdata(19, 0, "請確認密碼：", passbuf, sizeof(passbuf), NOECHO);
    if (strncmp(passbuf, newuser.passwd, PASSLEN)) {
        move(19, 0);
        outs("設定與確認時輸入的密碼不一致, 請重新輸入密碼.\n");
        continue;
    }
    passbuf[8] = '\0';
    strlcpy(newuser.passwd, genpasswd(passbuf), PASSLEN);
    break;
    }
    // set-up more information.
    move(19, 0); clrtobot();

    // warning: because currutmp=NULL, we can simply pass newuser.* to getdata.
    // DON'T DO THIS IF YOUR currutmp != NULL.
    try = 0;
    while (strlen(newuser.nickname) < 2)
    {
    if (++try > 10) {
        vmsg(MSG_ERR_MAXTRIES);
        exit(1);
    }
    getdata(19, 0, "綽號暱稱：", newuser.nickname,
        sizeof(newuser.nickname), DOECHO);
    }

    try = 0;
    while (strlen(newuser.realname) < 4)
    {
    if (++try > 10) {
        vmsg(MSG_ERR_MAXTRIES);
        exit(1);
    }
    getdata(20, 0, "真實姓名：", newuser.realname,
        sizeof(newuser.realname), DOECHO);

    if ((errmsg = isvalidname(newuser.realname)))
    {
        memset(newuser.realname, 0, sizeof(newuser.realname));
        vmsg(errmsg); 
    }
    }

    try = 0;
    while (strlen(newuser.address) < 8)
    {
    // do not use isvalidaddr to check,
    // because that requires foreign info.
    if (++try > 10) {
        vmsg(MSG_ERR_MAXTRIES);
        exit(1);
    }
    getdata(21, 0, "聯絡地址：", newuser.address,
        sizeof(newuser.address), DOECHO);
    }

    try = 0;
    while (newuser.year < 40) // magic number 40: see user.c
    {
    char birthday[sizeof("mmmm/yy/dd ")];
    int y, m, d;
    struct tm tm;

    localtime4_r(&now, &tm);

    if (++try > 20) {
        vmsg(MSG_ERR_MAXTRIES);
        exit(1);
    }
    getdata(22, 0, "生日 (西元年/月/日, 如 " DATE_SAMPLE ")：", birthday,
        sizeof(birthday), DOECHO);

    if (strcmp(birthday, DATE_SAMPLE) == 0) {
        vmsg("不要複製範例！ 請輸入你真實生日");
        continue;
    }

    if (ParseDate(birthday, &y, &m, &d)) {
        vmsg("日期格式不正確");
        continue;
    } else if (y < 1930) {
        vmsg(MSG_ERR_TOO_OLD);
        continue;
    } else if (y+3 > tm.tm_year+1900) {
        vmsg(MSG_ERR_TOO_YOUNG);
        continue;
    }
    newuser.year  = (unsigned char)(y-1900);
    newuser.month = (unsigned char)m;
    newuser.day   = (unsigned char)d;
    }

    if (!verify_captcha())
    {
    vmsg(MSG_ERR_MAXTRIES);
    exit(1);
    }

    setupnewuser(&newuser);

    if( (uid = initcuser(newuser.userid)) < 0) {
    vmsg("無法建立帳號");
    exit(1);
    }
    log_usies("REGISTER", fromhost);
}

int
check_regmail(char *email)
{
    FILE           *fp;
    char            buf[128], *c;
    int allow = 0;

    c = strchr(email, '@');
    if (c == NULL) return 0;

    // reject multiple '@'
    if (c != strrchr(email, '@')) 
    {
    vmsg("E-Mail 的格式不正確。");
    return 0;
    }

    // domain tolower
    str_lower(c, c);

    // allow list
    allow = 0;
    if ((fp = fopen("etc/whitemail", "rt")))
    {
    while (fgets(buf, sizeof(buf), fp)) {
        if (buf[0] == '#')
        continue;
        chomp(buf);
        c = buf+1;
        // vmsgf("%c %s %s",buf[0], c, email);
        switch(buf[0])
        {
        case 'A': if (strcasecmp(c, email) == 0)    allow = 1; break;
        case 'P': if (strcasestr(email, c)) allow = 1; break;
        case 'S': if (strcasecmp(strstr(email, "@") + 1, c) == 0) allow = 1; break;
        case '%': allow = 1; break; // allow all
            // domain match (*@c | *@*.c)
        case 'D': if (strlen(email) > strlen(c))
              {
                  // c2 points to starting of possible c.
                  const char *c2 = email + strlen(email) - strlen(c);
                  if (strcasecmp(c2, c) != 0)
                  break;
                  c2--;
                  if (*c2 == '.' || *c2 == '@')
                  allow = 1;
              }
              break;
        }
        if (allow) break;
    }
    fclose(fp);
    if (!allow) 
    {
        // show whitemail notice if it exists.
        if (dashf(FN_NOTIN_WHITELIST_NOTICE))
        {
        VREFSCR scr = vscr_save();
        more(FN_NOTIN_WHITELIST_NOTICE, NA);
        pressanykey();
        vscr_restore(scr);
        } else vmsg("抱歉，目前不接受此 Email 的註冊申請。");
        return 0;
    }
    }

    // reject list
    allow = 1;
    if ((fp = fopen("etc/banemail", "r"))) {
    while (allow && fgets(buf, sizeof(buf), fp)) {
        if (buf[0] == '#')
        continue;
        chomp(buf);
        c = buf+1;
        switch(buf[0])
        {
        case 'A': if (strcasecmp(c, email) == 0)
              {
                  allow = 0;
                  // exact match
                  vmsg("此電子信箱已被禁止註冊");
              }
              break;
        case 'P': if (strcasestr(email, c))
              {
                  allow = 0;
                  vmsg("此信箱已被禁止用於註冊 (可能是免費信箱)");
              }
              break;
        case 'S': if (strcasecmp(strstr(email, "@") + 1, c) == 0)
              {
                  allow = 0;
                  vmsg("此信箱已被禁止用於註冊 (可能是免費信箱)");
              }
              break;
        case 'D': if (strlen(email) > strlen(c))
              {
                  // c2 points to starting of possible c.
                  const char *c2 = email + strlen(email) - strlen(c);
                  if (strcasecmp(c2, c) != 0)
                  break;
                  c2--;
                  if (*c2 == '.' || *c2 == '@')
                  {
                  vmsg("此信箱的網域已被禁止用於註冊 (可能是免費信箱)");
                  allow = 0;
                  }
              }
              break;
        }
    }
    fclose(fp);
    }
    return allow;
}

/////////////////////////////////////////////////////////////////////////////
// User Registration (Phase 2: Validation)
/////////////////////////////////////////////////////////////////////////////

void
check_register(void)
{
    char fn[PATHLEN];

    // 已經通過的就不用了
    if (HasUserPerm(PERM_LOGINOK) || HasUserPerm(PERM_SYSOP))
    return;

    // 基本權限被拔應該是要讓他不能註冊用。
    if (!HasUserPerm(PERM_BASIC))
    return;

    /* 
     * 避免使用者被退回註冊單後，在知道退回的原因之前，
     * 又送出一次註冊單。
     */ 
    setuserfile(fn, FN_REJECT_NOTIFY);
    if (dashf(fn))
    {
    int xun = 0, abort = 0;
    userec_t u = {0};
    char buf[PATHLEN] = "";
    FILE *fp = fopen(fn, "rt");

    // load reference
    fgets(buf, sizeof(buf), fp);
    fclose(fp);

    // parse reference
    if (buf[0] == '#')
    {
        xun = atoi(buf+1);
        if (xun <= 0 || xun > MAX_USERS ||
        passwd_sync_query(xun, &u) < 0 ||
        !(u.userlevel & (PERM_ACCOUNTS | PERM_ACCTREG)))
        memset(&u, 0, sizeof(u));
        // now u is valid only if reference is loaded with account sysop.
    }

    // show message.
    more(fn, YEA);
    move(b_lines-4, 0); clrtobot();
    outs("\n" ANSI_COLOR(1;31) 
         "前次註冊單審查失敗。 (本記錄已備份於您的信箱中)\n"
         "請重新申請並照上面指示正確填寫註冊單。\n");

    if (u.userid[0])
        outs("如有任何問題或需要與站務人員聯絡請按 r 回信。");

    outs(ANSI_RESET "\n");


    // force user to confirm.
    while (!abort)
    {
        switch(vans(u.userid[0] ?
            "請輸入 y 繼續或輸入 r 回信給站務: " : 
            "請輸入 y 繼續: "))
        {
        case 'y':
            abort = 1;
            break;

        case 'r':
            if (!u.userid[0])
            break;

            // mail to user
            setuserfile(quote_file, FN_REJECT_NOTIFY);
            strlcpy(quote_user, "[退註通知]", sizeof(quote_user));
            clear();
            do_innersend(u.userid, NULL, "[註冊問題] 退註相關問題", NULL);
            abort = 1;
            // quick return to avoid confusing user
            unlink(fn);
            return;
            break;

        default:
            bell();
            break;
        }
    }

    unlink(fn);
    } 

    /* 回覆過身份認證信函，或曾經 E-mail post 過 */
    clear();
    move(9, 0);

    // 無法使用註冊碼 = 被退註的，提示一下?
    // (u_register 裡面會 vmsg)
    if (HasUserPerm(PERM_NOREGCODE))
    {
    }

    outs("  您目前尚未通過註冊認證程序，請細詳填寫" 
        ANSI_COLOR(32) "註冊申請單" ANSI_RESET "，\n"
     "  通告站長以獲得進階使用權力。\n\n");

    outs("  如果您之前曾使用 email 等認證方式通過註冊認證但又看到此訊息，\n"
     "  代表您的認證由於資料不完整已被取消 (常見於申請開新看板的板主)。\n");

    u_register();

#ifdef NEWUSER_LIMIT
    if (cuser.lastlogin - cuser->firstlogin < 3 * DAY_SECONDS)
    cuser.userlevel &= ~PERM_POST;
    more("etc/newuser", YEA);
#endif
}

static int
create_regform_request()
{
    FILE *fn;

    char fname[PATHLEN];
    setuserfile(fname, FN_REGFORM);
    fn = fopen(fname, "wt");    // regform 2: replace model

    if (!fn)
    return 0;

    // create request data
    fprintf(fn, "uid: %s\n",    cuser.userid);
    fprintf(fn, "name: %s\n",   cuser.realname);
    fprintf(fn, "career: %s\n", cuser.career);
    fprintf(fn, "addr: %s\n",   cuser.address);
    fprintf(fn, "phone: %s\n",  cuser.phone);
    fprintf(fn, "email: %s\n",  "x"); // email is apparently 'x' here.
    fprintf(fn, "----\n");
    fclose(fn);

    // regform2 must update request list
    file_append_record(FN_REQLIST, cuser.userid);

    // save justify information
    pwcuRegSetTemporaryJustify("<Manual>", "x");
    return 1;
}

static void
toregister(char *email)
{
    clear();
    vs_hdr("認證設定");
    if (cuser.userlevel & PERM_NOREGCODE){
    strcpy(email, "x");
    goto REGFORM2;
    }
    move(1, 0);
    outs("您好, 本站註冊認證的方式有:\n"
     "  1.若您有 E-Mail  (本站不接受 yahoo, kimo等免費的 E-Mail)\n"
     "    請輸入您的 E-Mail , 我們會寄發含有認證碼的信件給您\n"
     "    收到後請到 (U)ser => (R)egister 輸入認證碼, 即可通過認證\n"
     "\n"
     "  2.若您沒有 E-Mail 或是一直無法收到認證信, 請輸入 x \n"
     "  會有站長親自人工審核註冊資料，" ANSI_COLOR(1;33)
       "但注意這可能會花上數天或更多時間。" ANSI_RESET "\n"
     "**********************************************************\n"
     "* 注意!                                                  *\n"
     "* 通常應該會在輸入完成後十分鐘內收到認證信, 若過久未收到 *\n"
     "* 請到郵件垃圾桶檢查是否被當作垃圾信(SPAM)了，另外若是   *\n"
     "* 輸入後發生認證碼錯誤請重填一次 E-Mail                  *\n"
     "**********************************************************\n");

    while (1) {
    email[0] = 0;
    getfield(15, "身分認證用", REGNOTES_ROOT "email", "E-Mail Address", email, 50);
    strip_blank(email, email);
    if (strcmp(email, "X") == 0) email[0] = 'x';
    if (strcmp(email, "x") == 0)
        break;
    else if (check_regmail(email)) {
        char            yn[3];
#ifdef USE_EMAILDB
        int email_count;

        // before long waiting, alert user
        move(18, 0); clrtobot();
        outs("正在確認 email, 請稍候...\n");
        doupdate();
        
        email_count = emaildb_check_email(email, strlen(email));

        if (email_count < 0) {
        move(15, 0); clrtobot();
        move(17, 0);
        outs("email 認證系統發生問題, 請稍後再試，或輸入 x 採手動認證。\n");
        pressanykey();
        return;
        } else if (email_count >= EMAILDB_LIMIT) { 
        move(15, 0); clrtobot();
        move(17, 0);
        outs("指定的 E-Mail 已註冊過多帳號, 請使用其他 E-Mail, 或輸入 x 採手動認證\n");
        outs("但注意手動認證通常會花上數天以上的時間。\n");
        pressanykey();
        } else {
#endif
        move(17, 0);
        outs(ANSI_COLOR(1;31) 
        "\n提醒您: 如果之後發現您輸入的註冊資料有問題，不僅註冊會被取消，\n"
        "原本認證用的 E-mail 也不能再用來認證。\n" ANSI_RESET);
        getdata(16, 0, "請再次確認您輸入的 E-Mail 位置正確嘛? [y/N]",
            yn, sizeof(yn), LCECHO);
        clrtobot();
        if (yn[0] == 'y')
        break;
#ifdef USE_EMAILDB
        }
#endif
    } else {
        move(15, 0); clrtobot();
        move(17, 0);
        outs("指定的 E-Mail 不正確。可能你輸入的是免費的Email，\n");
        outs("或曾有使用者以本 E-Mail 認證後被取消資格。\n\n");
        outs("若您無 E-Mail 請輸入 x 由站長手動認證，\n");
        outs("但注意手動認證通常會花上數天以上的時間。\n");
        pressanykey();
    }
    }
#ifdef USE_EMAILDB
    // XXX for 'x', the check will be made later... let's simply ignore it.
    if (strcmp(email, "x") != 0 &&
    emaildb_update_email(cuser.userid, strlen(cuser.userid), email, strlen(email)) < 0) {
    move(15, 0); clrtobot();
    move(17, 0);
    outs("email 認證系統發生問題, 請稍後再試，或輸入 x 採手動認證。\n");
    pressanykey();
    return;
    }
#endif
 REGFORM2:
    if (strcasecmp(email, "x") == 0) {  /* 手動認證 */
    if (!create_regform_request())
        vmsg("註冊申請單建立失敗。請至 " BN_BUGREPORT " 報告。");
    } else {
    // register by mail or mobile
    pwcuRegSetTemporaryJustify("<Email>", email);
    email_justify(cuser_ref);
    }
}

int
u_register(void)
{
    char            rname[20], addr[50], mobile[16];
    char            phone[20], career[40], email[50], birthday[11], sex_is[2];
    unsigned char   year, mon, day;
    char            inregcode[14], regcode[50];
    char            ans[3], *errcode;
    int         i = 0;
    int             isForeign = (cuser.uflag2 & FOREIGN) ? 1 : 0;

    if (cuser.userlevel & PERM_LOGINOK) {
    outs("您的身份確認已經完成，不需填寫申請表");
    return XEASY;
    }

    // TODO REGFORM 2 checks 2 parts.
    i = file_find_record(FN_REQLIST, cuser.userid);

    if (i > 0)
    {
    vs_hdr("註冊單尚在處理中");
    move(3, 0);
    prints("   您的註冊申請單尚在處理中(處理順位: %d)，請耐心等候\n\n", i);
    outs("   * 如果您之前曾使用 email 等認證方式通過註冊認證但又看到此訊息，\n"
         "     代表您的認證由於資料不完整已被取消 (由於建立新看板的流程中\n"
        "      有驗證板主註冊資料的程序，若您最近有申請開新看板中則屬此項)\n\n"
         "   * 如果您已收到註冊碼卻看到這個畫面，代表您在使用 Email 註冊後\n"
         "     " ANSI_COLOR(1;31) "又另外申請了站長直接人工審核的註冊申請單。" 
        ANSI_RESET "\n"
         "     進入人工審核程序後 Email 註冊碼自動失效，要等到審核完成\n"
         "      (會多花很多時間，數天到數週是正常的) ，所以請耐心等候。\n\n");
    vmsg("您的註冊申請單尚在處理中");
    return FULLUPDATE;
    }

    strlcpy(rname, cuser.realname, sizeof(rname));
    strlcpy(addr,  cuser.address,  sizeof(addr));
    strlcpy(email, cuser.email,    sizeof(email));
    strlcpy(career,cuser.career,   sizeof(career));
    strlcpy(phone, cuser.phone,    sizeof(phone));

    if (cuser.mobile)
    snprintf(mobile, sizeof(mobile), "0%09d", cuser.mobile);
    else
    mobile[0] = 0;

    if (cuser.month == 0 && cuser.day == 0 && cuser.year == 0)
    birthday[0] = 0;
    else
    snprintf(birthday, sizeof(birthday), "%04i/%02i/%02i",
         1900 + cuser.year, cuser.month, cuser.day);

    sex_is[0] = (cuser.sex % 8) + '1';
    sex_is[1] = 0;

    if (cuser.userlevel & PERM_NOREGCODE) {
    vmsg("您不被允許\使用認證碼認證。請填寫註冊申請單");
    goto REGFORM;
    }

    // getregcode(regcode);

    // XXX why check by year? 
    // birthday is moved to earlier, so let's check email instead.
    if (cuser.email[0] && // cuser.year != 0 && /* 已經第一次填過了~ ^^" */
    strcmp(cuser.email, "x") != 0 &&    /* 上次手動認證失敗 */
    strcmp(cuser.email, "X") != 0) 
    {
    vs_hdr("EMail認證");
    move(2, 0);

    prints("請輸入您的認證碼。(由 %s 開頭無空白的十三碼)\n"
           "或輸入 x 來重新填寫 E-Mail 或改由站長手動認證\n", REGCODE_INITIAL);
    inregcode[0] = 0;

    do{
        getdata(10, 0, "您的認證碼：",
            inregcode, sizeof(inregcode), DOECHO);
        if( strcmp(inregcode, "x") == 0 || strcmp(inregcode, "X") == 0 )
        break;
        if( strlen(inregcode) != 13 || inregcode[0] == ' ')
        vmsg("認證碼輸入不完整，總共應有十三碼，沒有空白字元。");
        else if( inregcode[0] != REGCODE_INITIAL[0] || inregcode[1] != REGCODE_INITIAL[1] ) {
        /* old regcode */
        vmsg("輸入的認證碼錯誤，" // "或因系統昇級已失效，"
             "請輸入 x 重填一次 E-Mail");
        }
        else
        break;
    } while( 1 );

    // make it case insensitive.
    if (strcasecmp(inregcode, getregcode(regcode)) == 0) {
        int  unum;
        char justify[sizeof(cuser.justify)] = "";
        delregcodefile();
        if ((unum = searchuser(cuser.userid, NULL)) == 0) {
        vmsg("系統錯誤，查無此人！");
        u_exit("getuser error");
        exit(0);
        }
        mail_muser(cuser, "[註冊成功\囉]", "etc/registeredmail");
#if FOREIGN_REG_DAY > 0
        if(cuser.uflag2 & FOREIGN)
        mail_muser(cuser, "[出入境管理局]", "etc/foreign_welcome");
#endif
        snprintf(justify, sizeof(justify), "<E-Mail>: %s", Cdate(&now));
        pwcuRegCompleteJustify(justify);
        outs("\n註冊成功\, 重新上站後將取得完整權限\n"
           "請按下任一鍵跳離後重新上站~ :)");
        pressanykey();
        u_exit("registed");
        exit(0);
        // XXX shall never reach here.
        return QUIT;

    } else if (strcasecmp(inregcode, "x") != 0) {
        if (regcode[0])
        {
        vmsg("認證碼錯誤！");
        return FULLUPDATE;
        }
        else 
        {
        vmsg("認證碼已過期，請重新註冊。");
        toregister(email);
        return FULLUPDATE;
        }
    } else {
        toregister(email);
        return FULLUPDATE;
    }
    }

    REGFORM:
    getdata(b_lines - 1, 0, "您確定要填寫註冊單嗎(Y/N)？[N] ",
        ans, 3, LCECHO);
    if (ans[0] != 'y')
    return FULLUPDATE;

    // show REGNOTES_ROOT front page
    if (dashs(REGNOTES_ROOT "front"))
    {
    clear();
    vs_hdr("註冊單填寫說明");
    show_file(REGNOTES_ROOT "front", 1, t_lines-2, SHOWFILE_ALLOW_ALL);
    vmsg(NULL);
    }

    move(2, 0);
    clrtobot();
    while (1) {
    clear();
    move(1, 0);
    prints("%s(%s) 您好，請據實填寫以下的資料:",
           cuser.userid, cuser.nickname);
#ifdef FOREIGN_REG
    {
        char not_fore[2] = "";  // use default values instead of pre-inputs

        getfield(2, isForeign ? "y/N" : "Y/n", REGNOTES_ROOT "foreign",  "是否現在住在台灣", not_fore, 2);

        // XXX NOTE: the question we ask was "Aren't you a foreigner" in Chinese, so the answer
        // must be opposite to isForeign.
        if (isForeign)
        {
        // default n
        isForeign = (not_fore[0] == 'y' || not_fore[0] == 'Y') ? 0 : 1;
        } else {
        // default y
        isForeign = (not_fore[0] == 'n' || not_fore[0] == 'N') ? 1 : 0;
        }
    }
    move(2, 0); prints("  是否現在住在台灣: %s\n", isForeign ? "N (否)" : "Y (是)");
#endif
    while (1) {
        getfield(4, 
#ifdef FOREIGN_REG
                     "請用本名",
#else
                     "請用中文",
#endif
             REGNOTES_ROOT "name",
                     "真實姓名", rname, 20);
        if( (errcode = isvalidname(rname)) == NULL )
        break;
        else
        vmsg(errcode);
    }

    while (1) {
        getfield(5, "(畢業)學校(含" ANSI_COLOR(1;33) "系所年級" ANSI_RESET ")或單位職稱",
            REGNOTES_ROOT "career", "服務單位", career, 40);
        if( (errcode = isvalidcareer(career)) == NULL )
        break;
        else
        vmsg(errcode);
    }

    while (1) {
        getfield(6, "含" ANSI_COLOR(1;33) "縣市" ANSI_RESET "及門寢號碼"
             "(台北請加" ANSI_COLOR(1;33) "行政區" ANSI_RESET ")",
             REGNOTES_ROOT "address", "目前住址", addr, sizeof(addr));
        if( (errcode = isvalidaddr(addr)) == NULL
#ifdef FOREIGN_REG
                || isForeign
#endif
        )
        break;
        else
        vmsg(errcode);
    }

    while (1) {
        getfield(7, "不加-(), 包括長途區號", 
            REGNOTES_ROOT "phone", "連絡電話", phone, 11);
        if( (errcode = isvalidphone(phone)) == NULL )
        break;
#ifdef FOREIGN_REG
        else if(isForeign && !strstr(errcode, "分隔符號"))
        break;
#endif
        else
        vmsg(errcode);
    }
    getfield(8, "只輸入數字 如:0912345678 (可不填)",
        REGNOTES_ROOT "mobile", "手機號碼", mobile, 20);
    while (1) {
        getfield(9, "西元/月月/日日 如: " DATE_SAMPLE , 
            REGNOTES_ROOT "birthday", "生日", birthday, sizeof(birthday));
        if (birthday[0] == 0) {
        snprintf(birthday, sizeof(birthday), "%04i/%02i/%02i",
             1900 + cuser.year, cuser.month, cuser.day);
        mon = cuser.month;
        day = cuser.day;
        year = cuser.year;
        } else {
        int y, m, d;
        if (strcmp(birthday, DATE_SAMPLE) == 0) {
            vmsg("不要複製範例！ 請輸入你真實生日");
            continue;
        }
        if (ParseDate(birthday, &y, &m, &d)) {
            vmsg("您的輸入不正確");
            continue;
        }
        mon = (unsigned char)m;
        day = (unsigned char)d;
        year = (unsigned char)(y - 1900);
        }
        if (year < 40) {
        vmsg("您的輸入不正確");
        continue;
        }
        break;
    }
    getfield(10, "1.♂男 2.♀女 ", REGNOTES_ROOT "sex", "性別", sex_is, 2);
    getdata(20, 0, "以上資料是否正確(Y/N)？(Q)取消註冊 [N] ",
        ans, 3, LCECHO);
    if (ans[0] == 'q')
        return 0;
    if (ans[0] == 'y')
        break;
    }
#ifndef FOREIGN_REG
    isForeign = 0;
#endif

    // copy values to cuser
    pwcuRegisterSetInfo(rname, addr, career, phone, email,
        atoi(mobile), (sex_is[0] - '1') % 8,
        year, mon, day, isForeign);

    // if reach here, email is apparently 'x'.
    toregister(email);

    return FULLUPDATE;
}

////////////////////////////////////////////////////////////////////////////
// Regform Utilities
////////////////////////////////////////////////////////////////////////////

// TODO define and use structure instead, even in reg request file.
typedef struct {
    // current format:
    // (optional) num: unum, date
    // [0] uid: xxxxx   (IDLEN=12)
    // [1] name: RRRRRR (20)
    // [2] career: YYYYYYYYYYYYYYYYYYYYYYYYYY (40)
    // [3] addr: TTTTTTTTT (50)
    // [4] phone: 02DDDDDDDD (20)
    // [5] email: x (50) (deprecated)
    // [6] mobile: (deprecated)
    // [7] ----
    userec_t    u;  // user record
    char    online;

} RegformEntry;

// regform format utilities

// regform loader: deprecated.
// now we use real user record.
/*
int
load_regform_entry(RegformEntry *pre, FILE *fp)
{
    char buf[STRLEN];
    char *v;

    memset(pre, 0, sizeof(RegformEntry));
    while (fgets(buf, sizeof(buf), fp))
    {
    if (buf[0] == '-')
        break;
    buf[sizeof(buf)-1] = 0;
    v = strchr(buf, ':');
    if (v == NULL)
        continue;
    *v++ = 0;
    if (*v == ' ') v++;
    chomp(v);

    if (strcmp(buf, "uid") == 0)
        strlcpy(pre->u.userid, v, sizeof(pre->u.userid));
    else if (strcmp(buf, "name") == 0)
        strlcpy(pre->u.realname, v, sizeof(pre->u.realname));
    else if (strcmp(buf, "career") == 0)
        strlcpy(pre->u.career, v, sizeof(pre->u.career));
    else if (strcmp(buf, "addr") == 0)
        strlcpy(pre->u.address, v, sizeof(pre->u.address));
    else if (strcmp(buf, "phone") == 0)
        strlcpy(pre->u.phone, v, sizeof(pre->u.phone));
    }
    return pre->u.userid[0] ? 1 : 0;
}
*/

static int
print_regform_entry(const RegformEntry *pre, FILE *fp, int close)
{
    fprintf(fp, "uid: %s\n",    pre->u.userid);
    fprintf(fp, "name: %s\n",   pre->u.realname);
    fprintf(fp, "career: %s\n", pre->u.career);
    fprintf(fp, "addr: %s\n",   pre->u.address);
    fprintf(fp, "phone: %s\n",  pre->u.phone);
    if (close)
    fprintf(fp, "----\n");
    return 1;
}

static int
concat_regform_entry_localized(const RegformEntry *pre, char *result, int maxlen)
{
    int len = strlen(result);
    len += snprintf(result + len, maxlen - len, "使用者ID: %s\n", pre->u.userid);
    len += snprintf(result + len, maxlen - len, "真實姓名: %s\n", pre->u.realname);
    len += snprintf(result + len, maxlen - len, "職業學校: %s\n", pre->u.career);
    len += snprintf(result + len, maxlen - len, "目前住址: %s\n", pre->u.address);
    len += snprintf(result + len, maxlen - len, "電話號碼: %s\n", pre->u.phone);
    len += snprintf(result + len, maxlen - len, "上站位置: %s\n", pre->u.lasthost);
    len += snprintf(result + len, maxlen - len, "----\n");
    return 1;
}

static int
print_regform_entry_localized(const RegformEntry *pre, FILE *fp)
{
    char buf[STRLEN * 6];
    buf[0] = '\0';
    concat_regform_entry_localized(pre, buf, sizeof(buf));
    fputs(buf, fp);
    return 1;
}

int
append_regform(const RegformEntry *pre, const char *logfn, const char *ext)
{
    FILE *fout = fopen(logfn, "at");
    if (!fout)
    return 0;

    print_regform_entry(pre, fout, 0);
    if (ext)
    {
    syncnow();
    fprintf(fout, "Date: %s\n", Cdate(&now));
    if (*ext)
        fprintf(fout, ext);
    }
    // close it
    fprintf(fout, "----\n");
    fclose(fout);
    return 1;
}

// prototype declare
static void regform_print_reasons(const char *reason, FILE *fp);
static void regform_concat_reasons(const char *reason, char *result, int maxlen);

int regform_estimate_queuesize()
{
    return dashs(FN_REQLIST) / IDLEN;
}

/////////////////////////////////////////////////////////////////////////////
// Administration (SYSOP Validation)
/////////////////////////////////////////////////////////////////////////////

#define REJECT_REASONS  (6)
#define REASON_LEN  (60)
static const char *reasonstr[REJECT_REASONS] = {
    "請輸入真實姓名",
    "請詳填(畢業)學校『系』『級』或服務單位(含所屬縣市及職稱)",
    "請填寫完整住址 (含縣市/鄉鎮市區, 台北市請記得加行政區域)",
    "請詳填連絡電話 (含區碼, 中間不加 '-', '(', ')' 等符號)",
    "請精確並完整填寫註冊申請表",
    "請用中文填寫申請單",
};

#define REASON_FIRSTABBREV '0'
#define REASON_IN_ABBREV(x) \
    ((x) >= REASON_FIRSTABBREV && (x) - REASON_FIRSTABBREV < REJECT_REASONS)
#define REASON_EXPANDABBREV(x)   reasonstr[(x) - REASON_FIRSTABBREV]

void
regform_log2board(const RegformEntry *pre, char accepted, 
    const char *reason, int priority)
{
#ifdef BN_ID_RECORD
    char title[STRLEN];
    char *title2 = NULL;
    char msg[STRLEN * REJECT_REASONS];

    snprintf(title, sizeof(title), 
        "[審核] %s: %s (%s: %s)", 
        accepted ? "○通過":"╳退回", pre->u.userid, 
        priority ? "指定審核" : "審核者",
        cuser.userid);

    // reduce mail header title
    title2 = strchr(title, ' ');
    if (title2) title2++;


    // construct msg
    strlcpy(msg, title2 ? title2 : title, sizeof(msg));
    strlcat(msg, "\n", sizeof(msg));
    if (!accepted) {
    regform_concat_reasons(reason, msg, sizeof(msg));
    }
    strlcat(msg, "\n", sizeof(msg));
    concat_regform_entry_localized(pre, msg, sizeof(msg));

    post_msg(BN_ID_RECORD, title, msg, "[註冊系統]");

#endif  // BN_ID_RECORD
}

void 
regform_accept(const char *userid, const char *justify)
{
    char buf[PATHLEN];
    int unum = 0;
    userec_t muser;

    unum = getuser(userid, &muser);
    if (unum == 0)
    return; // invalid user

    muser.userlevel |= (PERM_LOGINOK | PERM_POST);
    strlcpy(muser.justify, justify, sizeof(muser.justify));
    // manual accept sets email to 'x'
    strlcpy(muser.email, "x", sizeof(muser.email)); 

    // handle files
    sethomefile(buf, muser.userid, FN_REJECT_NOTIFY);
    unlink(buf);

    // update password file
    passwd_sync_update(unum, &muser);

    // alert online users?
    if (search_ulist(unum))
    {
    kick_all(muser.userid);
    }

    // According to suggestions by PTT BBS account sysops,
    // it is better to use anonymous here.
#if FOREIGN_REG_DAY > 0
    if(muser.uflag2 & FOREIGN)
    mail_log2id(muser.userid, "[System] Registration Complete ", "etc/foreign_welcome",
        "[SYSTEM]", 1, 0);
    else
#endif
    // last: send notification mail
    mail_log2id(muser.userid, "[系統通知] 註冊成功\ ", "etc/registered",
        "[系統通知]", 1, 0);
}

void 
regform_reject(const char *userid, const char *reason, const RegformEntry *pre)
{
    char buf[PATHLEN];
    FILE *fp = NULL;
    int unum = 0;
    userec_t muser;

    unum = getuser(userid, &muser);
    if (unum == 0)
    return; // invalid user

    muser.userlevel &= ~(PERM_LOGINOK | PERM_POST);

    // handle files

    // update password file
    passwd_sync_update(unum, &muser);

    // alert online users?
    if (search_ulist(unum))
    {
    sendalert(muser.userid,  ALERT_PWD_PERM); // force to reload perm
    kick_all(muser.userid);
    }

    // last: send notification
    mkuserdir(muser.userid);
    sethomefile(buf, muser.userid, FN_REJECT_NOTIFY);
    fp = fopen(buf, "wt");
    assert(fp);
    syncnow();

    // log reference for mail-reply.
    fprintf(fp, "#%010d\n\n", usernum);

    if(pre) print_regform_entry_localized(pre, fp);
    fprintf(fp, "%s 註冊失敗。\n", Cdate(&now));


    // prompt user for how to contact if they have problem
    // (deprecated because we allow direct reply now)
    // fprintf(fp, ANSI_COLOR(1;31) "如有任何問題或需要與站務人員聯絡請至"
    //      BN_ID_PROBLEM "看板。" ANSI_RESET "\n"); 

    // multiple abbrev loop
    regform_print_reasons(reason, fp);
    fprintf(fp, "--\n");
    fclose(fp);

    // if current site has extra notes
    if (dashf(FN_REJECT_NOTES))
    AppendTail(FN_REJECT_NOTES, buf, 0);

    // According to suggestions by PTT BBS account sysops,
    // it is better to use anonymous here.
    //
    // XXX how to handle the notification file better?
    // mail_log2id: do not use move.
    // mail_muser(muser, "[註冊失敗]", buf);
    
    // use regform2! no need to set 'newmail'.
    mail_log2id(muser.userid, "[註冊失敗記錄]", buf, "[註冊系統]", 0, 0);
}

// New Regform UI
static void
prompt_regform_ui()
{
    vs_footer(" 審核 ",
        " (y)接受(n)拒絕(d)丟掉 (s)跳過(u)復原 (空白/PgDn)儲存+下頁 (q/END)結束");
}

static void
regform_concat_reasons(const char *reason, char *result, int maxlen)
{
    int len = strlen(result);
    // multiple abbrev loop
    if (REASON_IN_ABBREV(reason[0]))
    {
    int i = 0;
    for (i = 0; reason[i] && REASON_IN_ABBREV(reason[i]); i++) {
        len += snprintf(result + len, maxlen - len, 
            ANSI_COLOR(1;33)
            "[退回原因] %s" ANSI_RESET "\n", 
            REASON_EXPANDABBREV(reason[i]));
    }
    } else {
    len += snprintf(result + len, maxlen - len, 
        ANSI_COLOR(1;33) "[退回原因] %s" ANSI_RESET "\n", reason);
    }
}

static void
regform_print_reasons(const char *reason, FILE *fp)
{
    // the messages may contain ANSI escapes
    char msg[ANSILINELEN * REJECT_REASONS];
    msg[0] = '\0';
    regform_concat_reasons(reason, msg, sizeof(msg));
    fputs(msg, fp);
}

static void
resolve_reason(char *s, int y, int force)
{
    // should start with REASON_FIRSTABBREV
    const char *reason_prompt = 
    " (0)真實姓名 (1)詳填系級 (2)完整住址"
    " (3)詳填電話 (4)確實填寫 (5)中文填寫";

    s[0] = 0;
    move(y, 0);
    outs(reason_prompt); outs("\n");

    do {
    getdata(y+1, 0, "退回原因: ", s, REASON_LEN, DOECHO);

    // convert abbrev reasons (format: single digit, or multiple digites)
    if (REASON_IN_ABBREV(s[0]))
    {
        if (s[1] == 0) // simple replace ment
        {
        strlcpy(s, REASON_EXPANDABBREV(s[0]),
            REASON_LEN);
        } else {
        // strip until all digites
        char *p = s;
        while (*p)
        {
            if (!REASON_IN_ABBREV(*p))
            *p = ' ';
            p++;
        }
        strip_blank(s, s);
        strlcat(s, " [多重原因]", REASON_LEN);
        }
    } 

    if (!force && !*s)
        return;

    if (strlen(s) < 4)
    {
        if (vmsg("原因太短。 要取消退回嗎？ (y/N): ") == 'y')
        {
        *s = 0;
        return;
        }
    }
    } while (strlen(s) < 4);
}

////////////////////////////////////////////////////////////////////////////
// Regform2 API
////////////////////////////////////////////////////////////////////////////

// registration queue
int
regq_append(const char *userid)
{
    if (file_append_record(FN_REQLIST, userid) < 0)
    return 0;
    return 1;
}

int 
regq_find(const char *userid)
{
    return file_find_record(FN_REQLIST, userid);
}

int
regq_delete(const char *userid)
{
    return file_delete_record(FN_REQLIST, userid, 0);
}

// user home regform operation
int 
regfrm_exist(const char *userid)
{
    char fn[PATHLEN];
    sethomefile(fn, userid, FN_REGFORM);
    return  dashf(fn) ? 1 : 0;
}

int
regfrm_delete(const char *userid)
{
    char fn[PATHLEN];
    sethomefile(fn, userid, FN_REGFORM);

#ifdef DBG_DRYRUN
    // dry run!
    vmsgf("regfrm_delete (%s)", userid);
    return 1;
#endif

    // directly delete.
    unlink(fn);

    // remove from queue
    regq_delete(userid);
    return 1;
}

int
regfrm_load(const char *userid, RegformEntry *pre)
{
    // FILE *fp = NULL;
    char fn[PATHLEN];
    int unum = 0;

    memset(pre, 0, sizeof(RegformEntry));

    // first check if user exists.
    unum = getuser(userid, &(pre->u));

    // valid unum starts at 1.
    if (unum < 1)
    return 0;

    // check if regform exists.
    sethomefile(fn, userid, FN_REGFORM);
    if (!dashf(fn))
    return 0;

#ifndef DBG_DRYRUN
    // check if user is already registered
    if (pre->u.userlevel & PERM_LOGINOK)
    {
    regfrm_delete(userid);
    return 0;
    }
#endif

    // load regform
    // (deprecated in current version, we use real user data now)

    // fill RegformEntry data
    pre->online = search_ulist(unum) ? 1 : 0;

    return 1;
}

int 
regfrm_save(const char *userid, const RegformEntry *pre)
{
    FILE *fp = NULL;
    char fn[PATHLEN];
    int ret = 0;
    sethomefile(fn, userid, FN_REGFORM);

    fp = fopen(fn, "wt");
    if (!fp)
    return 0;
    ret = print_regform_entry(pre, fp, 1);
    fclose(fp);
    return ret;
}

int 
regfrm_trylock(const char *userid)
{
    int fd = 0;
    char fn[PATHLEN];
    sethomefile(fn, userid, FN_REGFORM);
    if (!dashf(fn)) return 0;
    fd = open(fn, O_RDONLY);
    if (fd < 0) return 0;
    if (flock(fd, LOCK_EX|LOCK_NB) == 0)
    return fd;
    close(fd);
    return 0;
}

int 
regfrm_unlock(int lockfd)
{
    int fd = lockfd;
    if (lockfd <= 0)
    return 0;
    lockfd =  flock(fd, LOCK_UN) == 0 ? 1 : 0;
    close(fd);
    return lockfd;
}

// regform processors
int
regfrm_accept(RegformEntry *pre, int priority)
{
    char justify[REGLEN+1], buf[STRLEN*2];
    char fn[PATHLEN], fnlog[PATHLEN];

#ifdef DBG_DRYRUN
    // dry run!
    vmsg("regfrm_accept");
    return 1;
#endif

    sethomefile(fn, pre->u.userid, FN_REGFORM);

    // build justify string
    snprintf(justify, sizeof(justify),
        "[%s] %s", cuser.userid, Cdate(&now));

    // call handler
    regform_accept(pre->u.userid, justify);

    // log to user home
    sethomefile(fnlog, pre->u.userid, FN_REGFORM_LOG);
    append_regform(pre, fnlog, "");

    // log to global history
    snprintf(buf, sizeof(buf), "Approved: %s -> %s\n", 
        cuser.userid, pre->u.userid);
    append_regform(pre, FN_REGISTER_LOG, buf);

    // log to board
    regform_log2board(pre, 1, NULL, priority);

    // remove from queue
    unlink(fn);
    regq_delete(pre->u.userid);
    return 1;
}

int
regfrm_reject(RegformEntry *pre, const char *reason, int priority)
{
    char buf[STRLEN*2];
    char fn[PATHLEN];

#ifdef DBG_DRYRUN
    // dry run!
    vmsg("regfrm_reject");
    return 1;
#endif

    sethomefile(fn, pre->u.userid, FN_REGFORM);

    // call handler
    regform_reject(pre->u.userid, reason, pre);

    // log to global history
    snprintf(buf, sizeof(buf), "Rejected: %s -> %s [%s]\n", 
        cuser.userid, pre->u.userid, reason);
    append_regform(pre, FN_REGISTER_LOG, buf);

    // log to board
    regform_log2board(pre, 0, reason, priority);

    // remove from queue
    unlink(fn);
    regq_delete(pre->u.userid);
    return 1;
}

// working queue
FILE *
regq_init_pull()
{
    FILE *fp = tmpfile(), *src =NULL;
    char buf[STRLEN];
    if (!fp) return NULL;
    src = fopen(FN_REQLIST, "rt");
    if (!src) { fclose(fp); return NULL; }
    while (fgets(buf, sizeof(buf), src))
    fputs(buf, fp);
    fclose(src);
    rewind(fp);
    return fp;
}

int 
regq_pull(FILE *fp, char *uid)
{
    char buf[STRLEN];
    size_t idlen = 0;
    uid[0] = 0;
    if (fgets(buf, sizeof(buf), fp) == NULL)
    return 0;
    idlen = strcspn(buf, str_space);
    if (idlen < 1) return 0;
    if (idlen > IDLEN) idlen = IDLEN;
    strlcpy(uid, buf, idlen+1);
    return 1;
}

int
regq_end_pull(FILE *fp)
{
    // no need to unlink because fp is a tmpfile.
    if (!fp) return 0;
    fclose(fp);
    return 1;
}

// UI part
int
ui_display_regform_single(
    const RegformEntry *pre, 
    int tid, char *reason)
{
    int c;
    const userec_t *xuser = &(pre->u);

    while (1)
    {
    move(1, 0);
    user_display(xuser, 1);
    move(14, 0);
    prints(ANSI_COLOR(1;32) 
        "--------------- 這是第 %2d 份註冊單 -----------------------" 
        ANSI_RESET "\n", tid);
    prints("  %-12s: %s %s\n",  "帳號", pre->u.userid,
        (xuser->userlevel & PERM_NOREGCODE) ? 
        ANSI_COLOR(1;31) "  [T:禁止使用認證碼註冊]" ANSI_RESET: 
        "");
    prints("0.%-12s: %s%s\n",   "真實姓名", pre->u.realname,
        xuser->uflag2 & FOREIGN ? " (外籍)" : 
        "");
    prints("1.%-12s: %s\n", "服務單位", pre->u.career);
    prints("2.%-12s: %s\n", "目前住址", pre->u.address);
    prints("3.%-12s: %s\n", "連絡電話", pre->u.phone);

    move(b_lines, 0);
    outs("是否接受此資料(Y/N/Q/Del/Skip)？[S] ");

    // round to ASCII
    while ((c = igetch()) > 0xFF);
    c = tolower(c);

    if (c == 'y' || c == 'q' || c == 'd' || c == 's')
        return c;
    if (c == 'n')
    {
        int n = 0;
        move(3, 0);
        outs("\n" ANSI_COLOR(1;31) 
            "請提出退回申請表原因，按 <Enter> 取消:\n" ANSI_RESET);
        for (n = 0; n < REJECT_REASONS; n++)
        prints("%d) %s\n", n, reasonstr[n]);
        outs("\n\n\n"); // preserved for prompt

        getdata(3+2+REJECT_REASONS+1, 0,"退回原因: ",
            reason, REASON_LEN, DOECHO);
        if (reason[0] == 0)
        continue;
        // interprete reason
        return 'n';
    } 
    else if (REASON_IN_ABBREV(c))
    {
        // quick set
        sprintf(reason, "%c", c);
        return 'n';
    }
    return 's';
    }
    // shall never reach here
    return 's';
}

void
regform2_validate_single(const char *xuid)
{
    int lfd = 0;
    int tid = 0;
    char uid[IDLEN+1];
    char rsn[REASON_LEN];
    FILE *fpregq = regq_init_pull();
    RegformEntry re;

    if (xuid && !*xuid)
    xuid = NULL;

    if (!fpregq)
    return;

    while (regq_pull(fpregq, uid))
    {
    int abort = 0;

    // if target assigned, loop until given target.
    if (xuid && strcasecmp(uid, xuid) != 0)
        continue;

    // try to load regform.
    if (!regfrm_load(uid, &re))
    {
        regq_delete(uid);
        continue;
    }

    // try to lock
    lfd = regfrm_trylock(uid);
    if (lfd <= 0)
        continue;

    tid ++;

    // display regform and process
    switch(ui_display_regform_single(&re, tid, rsn))
    {
        case 'y': // accept
        regfrm_accept(&re, xuid ? 1 : 0);
        break;

        case 'd': // delete
        regfrm_delete(uid);
        break;

        case 'q': // quit
        abort = 1;
        break;

        case 'n': // reject
        regfrm_reject(&re, rsn, xuid ? 1 : 0);
        break;

        case 's': // skip
        // do nothing.
        break;

        default: // shall never reach here
        assert(0);
        break;
    }
    
    // final processing
    regfrm_unlock(lfd);

    if (abort)
        break;
    }
    regq_end_pull(fpregq);

    // finishing
    clear(); move(5, 0);
    if (xuid && tid == 0)
    prints("未發現 %s 的註冊單。", xuid);
    else
    prints("您檢視了 %d 份註冊單。", tid);
    pressanykey();
}

#define FORMS_IN_PAGE (10)

int
regform2_validate_page(int dryrun)
{
    int yMsg = FORMS_IN_PAGE*2+1;
    RegformEntry forms [FORMS_IN_PAGE];
    char ans    [FORMS_IN_PAGE];
    int  lfds   [FORMS_IN_PAGE];
    char rejects[FORMS_IN_PAGE][REASON_LEN];    // reject reason length
    char rsn    [REASON_LEN];
    int cforms = 0, // current loaded forms
    ci = 0, // cursor index
    ch = 0, // input key
    i;
    int tid = 0;
    char uid[IDLEN+1];
    FILE *fpregq = regq_init_pull();

    if (!fpregq)
    return 0;

    while (ch != 'q')
    {
    // initialize and prepare
    memset(ans, 0, sizeof(ans));
    memset(rejects, 0, sizeof(rejects));
    memset(forms,   0, sizeof(forms));
    memset(lfds,    0, sizeof(lfds));
    cforms = 0;
    clear();

    // load forms
    while (cforms < FORMS_IN_PAGE)
    {
        if (!regq_pull(fpregq, uid))
        break;
        i = cforms; // align index

        // check if user exists.
        if (!regfrm_load(uid, &forms[i]))
        {
        regq_delete(uid);
        continue;
        }

        // try to lock
        lfds[i] = regfrm_trylock(uid);
        if (lfds[i] <= 0)
        continue;

        // assign default answers
        if (forms[i].u.userlevel & PERM_LOGINOK)
        ans[i] = 'd';
#ifdef REGFORM_DISABLE_ONLINE_USER
        else if (forms[i].online)
        ans[i] = 's';
#endif // REGFORM_DISABLE_ONLINE_USER

        // display regform
        move(i*2, 0);
        prints("  %2d%s %s%-12s " ANSI_RESET, 
            i+1, 
            ( (forms[i].u.userlevel & PERM_LOGINOK) ? 
              ANSI_COLOR(1;33) "Y" : 
#ifdef REGFORM_DISABLE_ONLINE_USER
              forms[i].online ? "s" : 
#endif
              "."),
            forms[i].online ?  ANSI_COLOR(1;35) : ANSI_COLOR(1),
            forms[i].u.userid);

        prints( ANSI_COLOR(1;31) "%19s " 
            ANSI_COLOR(1;32) "%-40s" ANSI_RESET"\n", 
            forms[i].u.realname, forms[i].u.career);

        move(i*2+1, 0); 
        prints("    %s %-50s%20s\n", 
            (forms[i].u.userlevel & PERM_NOREGCODE) ? 
            ANSI_COLOR(1;31) "T" ANSI_RESET : " ",
            forms[i].u.address, forms[i].u.phone);

        cforms++, tid ++;
    }

    // if no more forms then leave.
    if (cforms < 1)
        break;

    // adjust cursor if required
    if (ci >= cforms)
        ci = cforms-1;

    // display page info
    vbarf(ANSI_REVERSE "\t%s 已顯示 %d 份註冊單 ", // "(%2d%%)  ",
            dryrun? "(測試模式)" : "",
            tid);

    // handle user input
    prompt_regform_ui();
    ch = 0;
    while (ch != 'q' && ch != ' ') {
        ch = cursor_key(ci*2, 0);
        switch (ch)
        {
        // nav keys
        case KEY_UP:
        case 'k':
            if (ci > 0) ci--;
            break;

        case KEY_DOWN:
        case 'j':
            ch = 'j'; // go next
            break;

            // quick nav (assuming to FORMS_IN_PAGE=10)
        case '1': case '2': case '3': case '4': case '5':
        case '6': case '7': case '8': case '9':
            ci = ch - '1';
            if (ci >= cforms) ci = cforms-1;
            break;
        case '0':
            ci = 10-1;
            if (ci >= cforms) ci = cforms-1;
            break;

        case KEY_HOME: ci = 0; break;
            /*
        case KEY_END:  ci = cforms-1; break;
            */

            // abort
        case KEY_END:
        case 'q':
            ch = 'q';
            if (vans("確定要離開了嗎？ (本頁變更將不會儲存) [y/N]: ") != 'y')
            {
            prompt_regform_ui();
            ch = 0;
            continue;
            }
            break;

            // prepare to go next page
        case KEY_PGDN:
        case ' ':
            ch = ' ';

            {
            int blanks = 0;
            // solving blank (undecided entries)
            for (i = 0, blanks = 0; i < cforms; i++)
                if (ans[i] == 0) blanks ++;

            if (!blanks)
                break;

            // have more blanks
            ch = vansf("尚未指定的 %d 個項目要: (S跳過/y通過/n拒絕/e繼續編輯): ", 
                blanks);
            }

            if (ch == 'e')
            {
            prompt_regform_ui();
            ch = 0;
            continue;
            }
            if (ch == 'y') {
            // do nothing.
            } else if (ch == 'n') {
            // query reject reason
            resolve_reason(rsn, yMsg, 1);
            if (*rsn == 0)
                ch = 's';
            } else ch = 's';

            // filling answers
            for (i = 0; i < cforms; i++)
            {
            if (ans[i] != 0)
                continue;
            ans[i] = ch;
            if (ch != 'n')
                continue;
            strlcpy(rejects[i], rsn, REASON_LEN);
            }

            ch = ' '; // go to page mode!
            break;

            // function keys
        case 'y':   // accept
#ifdef REGFORM_DISABLE_ONLINE_USER
            if (forms[ci].online)
            {
            vmsg("暫不開放審核在線上使用者。");
            break;
            }
#endif
        case 's':   // skip
        case 'd':   // delete
        case KEY_DEL:   //delete
            if (ch == KEY_DEL) ch = 'd';

            grayout(ci*2, ci*2+1, GRAYOUT_DARK);
            move_ansi(ci*2, 4); outc(ch);
            ans[ci] = ch;
            ch = 'j'; // go next
            break;

        case 'u':   // undo
#ifdef REGFORM_DISABLE_ONLINE_USER
            if (forms[ci].online)
            {
            vmsg("暫不開放審核在線上使用者。");
            break;
            }
#endif
            grayout(ci*2, ci*2+1, GRAYOUT_NORM);
            move_ansi(ci*2, 4); outc('.');
            ans[ci] = 0;
            ch = 'j'; // go next
            break;

        case 'n':   // reject
#ifdef REGFORM_DISABLE_ONLINE_USER
            if (forms[ci].online)
            {
            vmsg("暫不開放審核在線上使用者。");
            break;
            }
#endif
            // query for reason
            resolve_reason(rejects[ci], yMsg, 0);
            move(yMsg, 0); clrtobot();
            prompt_regform_ui();

            if (!rejects[ci][0])
            break;

            move(yMsg, 0);
            prints("退回 %s 註冊單原因:\n %s\n", 
                forms[ci].u.userid, rejects[ci]);

            // do reject
            grayout(ci*2, ci*2+1, GRAYOUT_DARK);
            move_ansi(ci*2, 4); outc(ch);
            ans[ci] = ch;
            ch = 'j'; // go next

            break;
        } // switch(ch)

        // change cursor
        if (ch == 'j' && ++ci >= cforms)
        ci = cforms -1;
    } // while(ch != QUIT/SAVE)

    // if exit, we still need to skip all read forms
    if (ch == 'q')
    {
        for (i = 0; i < cforms; i++)
        ans[i] = 's';
    }

    // page complete (save).
    assert(ch == ' ' || ch == 'q');

    // save/commit if required.
    if (dryrun) 
    {
        // prmopt for debug
        clear();
        vs_hdr("測試模式");
        outs("您正在執行測試模式，所以剛審的註冊單並不會生效。\n"
            "下面列出的是剛才您審完的結果:\n\n");

        for (i = 0; i < cforms; i++)
        {
        char justify[REGLEN+1];
        if (ans[i] == 'y')
            snprintf(justify, sizeof(justify), // build justify string
                "%s %s", cuser.userid, Cdate(&now));

        prints("%2d. %-12s - %c %s\n", i+1, forms[i].u.userid, ans[i],
            ans[i] == 'n' ? rejects[i] : 
            ans[i] == 'y' ? justify : "");
        }
        if (ch != 'q')
        pressanykey();
    } 
    else 
    {
        // real functionality
        for (i = 0; i < cforms; i++)
        {
        switch(ans[i])
        {
            case 'y': // accept
            regfrm_accept(&forms[i], 0);
            break;

            case 'd': // delete
            regfrm_delete(uid);
            break;

            case 'n': // reject
            regfrm_reject(&forms[i], rejects[i], 0);
            break;

            case 's': // skip
            // do nothing.
            break;

            default:
            assert(0);
            break;
        }
        }
    } // !dryrun

    // unlock all forms
    for (i = 0; i < cforms; i++)
        regfrm_unlock(lfds[i]);

    } // while (ch != 'q')

    regq_end_pull(fpregq);

    // finishing
    clear(); move(5, 0);
    prints("您檢視了 %d 份註冊單。", tid);
    pressanykey();
    return 0;
}

/////////////////////////////////////////////////////////////////////////////
// Regform UI 
// 處理 Register Form
/////////////////////////////////////////////////////////////////////////////

/* Auto-Regform-Scan
 * FIXME 真是一團垃圾
 *
 * fdata 用了太多 magic number
 * return value 應該是指 reason (return index + 1)
 * ans[0] 指的是帳管選擇的「錯誤的欄位」 (Register 選單裡看到的那些)
 */
#if 0
static int
auto_scan(char fdata[][STRLEN], char ans[])
{
    int             good = 0;
    int             count = 0;
    int             i;
    char            temp[10];

    if (!strncmp(fdata[1], "小", 2) || DBCS_strcasestr(fdata[1], "丫")
    || DBCS_strcasestr(fdata[1], "誰") || DBCS_strcasestr(fdata[1], "不")) {
    ans[0] = '0';
    return 1;
    }
    strlcpy(temp, fdata[1], 3);

    /* 疊字 */
    if (!strncmp(temp, &(fdata[1][2]), 2)) {
    ans[0] = '0';
    return 1;
    }
    if (strlen(fdata[1]) >= 6) {
    if (DBCS_strcasestr(fdata[1], "陳水扁")) {
        ans[0] = '0';
        return 1;
    }
    if (DBCS_strcasestr("趙錢孫李周吳鄭王", temp))
        good++;
    else if (DBCS_strcasestr("杜顏黃林陳官余辛劉", temp))
        good++;
    else if (DBCS_strcasestr("蘇方吳呂李邵張廖應蘇", temp))
        good++;
    else if (DBCS_strcasestr("徐謝石盧施戴翁唐", temp))
        good++;
    }
    if (!good)
    return 0;

    if (!strcmp(fdata[2], fdata[3]) ||
    !strcmp(fdata[2], fdata[4]) ||
    !strcmp(fdata[3], fdata[4])) {
    ans[0] = '4';
    return 5;
    }
    if (DBCS_strcasestr(fdata[2], "大")) {
    if (DBCS_strcasestr(fdata[2], "台") || DBCS_strcasestr(fdata[2], "淡") ||
        DBCS_strcasestr(fdata[2], "交") || DBCS_strcasestr(fdata[2], "政") ||
        DBCS_strcasestr(fdata[2], "清") || DBCS_strcasestr(fdata[2], "警") ||
        DBCS_strcasestr(fdata[2], "師") || DBCS_strcasestr(fdata[2], "銘傳") ||
        DBCS_strcasestr(fdata[2], "中央") || DBCS_strcasestr(fdata[2], "成") ||
        DBCS_strcasestr(fdata[2], "輔") || DBCS_strcasestr(fdata[2], "東吳"))
        good++;
    } else if (DBCS_strcasestr(fdata[2], "女中"))
    good++;

    if (DBCS_strcasestr(fdata[3], "地球") || DBCS_strcasestr(fdata[3], "宇宙") ||
    DBCS_strcasestr(fdata[3], "信箱")) {
    ans[0] = '2';
    return 3;
    }
    if (DBCS_strcasestr(fdata[3], "市") || DBCS_strcasestr(fdata[3], "縣")) {
    if (DBCS_strcasestr(fdata[3], "路") || DBCS_strcasestr(fdata[3], "街")) {
        if (DBCS_strcasestr(fdata[3], "號"))
        good++;
    }
    }
    for (i = 0; fdata[4][i]; i++) {
    if (isdigit((int)fdata[4][i]))
        count++;
    }

    if (count <= 4) {
    ans[0] = '3';
    return 4;
    } else if (count >= 7)
    good++;

    if (good >= 3) {
    ans[0] = 'y';
    return -1;
    } else
    return 0;
}
#endif

int
m_register(void)
{
    FILE           *fn;
    int             x, y, wid, len;
    char            ans[4];
    char            genbuf[200];

    if (dashs(FN_REQLIST) <= 0) {
    outs("目前並無新註冊資料");
    return XEASY;
    }
    fn = fopen(FN_REQLIST, "r");
    assert(fn);

    vs_hdr("審核使用者註冊資料");
    y = 2;
    x = wid = 0;

    while (fgets(genbuf, STRLEN, fn) && x < 65) {
    move(y++, x);
    outs(genbuf);
    len = strlen(genbuf);
    if (len > wid)
        wid = len;
    if (y >= t_lines - 3) {
        y = 2;
        x += wid + 2;
    }
    }

    fclose(fn);

    getdata(b_lines - 1, 0, 
        "開始審核嗎 (Y:單筆模式/N:不審/E:整頁模式/U:指定ID)？[N] ", 
        ans, sizeof(ans), LCECHO);

    if (ans[0] == 'y')
    regform2_validate_single(NULL);
    else if (ans[0] == 'e')
    regform2_validate_page(0);
    else if (ans[0] == 'u') {
    vs_hdr("指定審核");
    usercomplete(msg_uid, genbuf);
    if (genbuf[0])
        regform2_validate_single(genbuf);
    }

    return 0;
}

/* vim:sw=4
 */