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/* $Id: deluserfile.c,v 1.1 2002/03/07 15:13:45 in2 Exp $ */
/* 自動砍user目錄檔案程式 */

#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <dirent.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/types.h>
#include "config.h"
#include "pttstruct.h"
#include "util.h"

#define HOLDWRITELOG
#define DELZEROFILE
#define USERHOME BBSHOME "/home"

int bad_user_id(char *userid)
{
    register char ch;

    if (strlen(userid) < 2)
    return 1;

    if (!isalpha(*userid))
    return 1;

    if (!strcasecmp(userid, "new"))
    return 1;

    while ((ch = *(++userid)))
    if (!isalnum(ch))
        return 1;
    return 0;
}

void del_file(char *userid)
{
    char buf[200], buf1[200];
    struct dirent *de;
    DIR *dirp;
    char *ptr;

    sprintf(buf, BBSHOME "/home/%c/%s", userid[0], userid);

    if (chdir(buf) == -1)
    return;

    if (!(dirp = opendir(buf)))
    return;

    while ((de = readdir(dirp)))
    {
    ptr = de->d_name;
    if (ptr[0] > ' ' && ptr[0] != '.')
    {
        if (strstr(ptr, "writelog"))
#ifdef HOLDWRITELOG
        {
        fileheader_t mymail;

        stampfile(buf, &mymail);
        mymail.savemode = 'H';  /* hold-mail flag */
        mymail.filemode = FILE_READ;
        strcpy(mymail.owner, userid);
        strcpy(mymail.title, "熱線記錄");
        sprintf(buf1, BBSHOME "/home/%c/%s/writelog",
            userid[0], userid);
        rename(buf1, buf);
        sprintf(buf1, BBSHOME "/home/%c/%s/.DIR", userid[0], userid);
        append_record(buf1, &mymail, sizeof(mymail));
        }
#else
        unlink(ptr);
#endif
        else if (strstr(ptr, "chat_"))
        unlink(ptr);
        else if (strstr(ptr, "ve_"))
        unlink(ptr);
        else if (strstr(ptr, "SR."))
        unlink(ptr);
        else if (strstr(ptr, ".old"))
        unlink(ptr);
        else if (strstr(ptr, "talk_"))
        unlink(ptr);
    }
    }
    closedir(dirp);
}

void mv_user_home(char *ptr)
{
    char buf[200];

    printf("move user %s to tmp\n", ptr);
    sprintf(buf, "cp -R " BBSHOME "/home/%c/%s " BBSHOME "/tmp", ptr[0], ptr);
//      sprintf(buf,"rm -rf " BBSHOME "/home/%c/%s",ptr[0],ptr);
    if (!system(buf))
    {               //Copy success

    sprintf(buf, "rm -rf " BBSHOME "/home/%c/%s", ptr[0], ptr);
    system(buf);
    }
}

int main(int argc, char **argv)
{
    struct dirent *de;
    DIR *dirp;
    char *ptr, buf[200], ch;
    int count = 0;
/* visit all users  */

    printf("new version, deleting\n");

    for (ch = 'A'; ch <= 'z'; ch++)
    {
    if(ch > 'Z' && ch < 'a')
        continue;
    printf("Cleaning %c\n", ch);
    sprintf(buf, USERHOME "/%c", ch);
    if (!(dirp = opendir(buf)))
    {
        printf("unable to open %s\n", buf);
        continue;
    }

    while ((de = readdir(dirp)))
    {
        ptr = de->d_name;

        /* 預防錯誤 */
        if (!bad_user_id(ptr))
        {
        if (!(count++ % 300))
            printf(".\n");
        if (!searchuser(ptr))
            mv_user_home(ptr);
        else
            del_file(ptr);
        }
    }
    closedir(dirp);
    }
    return 0;
}