/* $Id$
 *
 * This generates the user, list, list membership, filesys data
 * for windows active directory update
 *
 * (c) Copyright 1988-2001 by the Massachusetts Institute of Technology.
 * For copying and distribution information, please see the file
 * <mit-copyright.h>.
 */

#include <mit-copyright.h>
#include <moira.h>
#include <moira_site.h>

#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "util.h"

EXEC SQL INCLUDE sqlca;

#ifndef WINAD_SUBDIR
#define WINAD_SUBDIR "winad"
#endif

char winad_dir[MAXPATHLEN];
char *whoami = "winad.gen";
char *db = "moira/moira";

int do_user(void);
int do_groups(void);
int do_groupmembership(void);
int do_containers(void);

int main(int argc, char **argv)
{
  char cmd[64];
  struct stat sb;
  int changed = 0;

  if (argc > 2)
    {
      fprintf(stderr, "usage: %s [outfile]\n", argv[0]);
      exit(MR_ARGS);
    }

  initialize_sms_error_table();
  sprintf(winad_dir, "%s/%s", DCM_DIR, WINAD_SUBDIR);

  EXEC SQL CONNECT :db;

  changed = do_user();
  changed += do_groups();
  changed += do_groupmembership();
  changed += do_containers();
 
  if (!changed)
  {
    fprintf(stderr, "No files updated.\n");
    if (argc == 2 && stat(argv[1], &sb) == 0)
	    exit(MR_NO_CHANGE);
  }

  if (argc == 2)
  {
    fprintf(stderr, "Building tar file.\n");
    sprintf(cmd, "cd %s; tar cf %s .", winad_dir, argv[1]);
    if (system(cmd))
	    exit(MR_TAR_FAIL);
  }

  exit(MR_SUCCESS);
}


int do_user(void)
{
  FILE *fout;
  char foutf[MAXPATHLEN];
  char foutft[MAXPATHLEN];
  EXEC SQL BEGIN DECLARE SECTION;
  char login[USERS_LOGIN_SIZE];
  char mit_id[USERS_CLEARID_SIZE];
  int users_id, unix_uid, status;
  char type[FILESYS_TYPE_SIZE];
  char name[FILESYS_NAME_SIZE];
  char homedir[USERS_WINHOMEDIR_SIZE];
  char profiledir[USERS_WINPROFILEDIR_SIZE];
  int fid;
  EXEC SQL END DECLARE SECTION;

  sprintf(foutf, "%s/winuser.db", winad_dir);
  sprintf(foutft, "%s~", foutf);

  fout = fopen(foutft, "w");
  if (!fout)
  {
    perror("cannot open winuser.db for write");
    exit(MR_OCONFIG);
  }

  EXEC SQL DECLARE u_cursor CURSOR FOR
    SELECT users_id, login, unix_uid, status, clearid, winhomedir,
    winprofiledir
    FROM users
    ORDER BY users_id;
  EXEC SQL OPEN u_cursor;
  while (1)
    {
      EXEC SQL FETCH u_cursor INTO :users_id, :login, :unix_uid, :status,
:mit_id, :homedir, :profiledir;
      if (sqlca.sqlcode)
	      break;
      strtrim(login);
      strtrim(mit_id);
      strtrim(homedir);
      strtrim(profiledir);

      if (strcmp(mit_id, "") == 0)
	strcpy(mit_id, "0");

      if (strcasecmp(homedir, "[AFS]") == 0 || strcasecmp(profiledir,
							  "[AFS]") == 0)
	{
	  EXEC SQL SELECT filsys_id into :fid
	    FROM filesys
	    WHERE lockertype = 'HOMEDIR' 
	    AND label = :login
	    AND type = 'FSGROUP';
	  
	  if (sqlca.sqlcode == 0)
	    {
	      EXEC SQL DECLARE f_cursor CURSOR FOR
		SELECT type, name 
		FROM filesys a, fsgroup b
		WHERE a.filsys_id=b.filsys_id 
		AND b.group_id=:fid
		ORDER by key;
	      
	      EXEC SQL OPEN f_cursor;
	      
	      EXEC SQL FETCH f_cursor INTO :type, :name;
	      
	      if (sqlca.sqlcode == 0)
		{
		  strtrim(type);
		  strtrim(name);
		}
	      else
		{
		  strcpy(type, "NONE");
		  strcpy(name, "NONE");
		}
	      
	      EXEC SQL CLOSE f_cursor;
	    }

	  else
	    {
	      EXEC SQL SELECT type, name into :type, :name
		FROM filesys
		WHERE lockertype = 'HOMEDIR' 
		AND label=:login;
	      
	      if (sqlca.sqlcode == 0)
		{
		  strtrim(type);
		  strtrim(name);
		}
	      else
		{
		  strcpy(type, "NONE");
		  strcpy(name, "NONE");
		}
	    }
	  if (strcasecmp(type, "AFS") != 0)
	    strcpy(name, "[LOCAL]");

	}

      if (strcasecmp(homedir, "[AFS]") == 0)
	strcpy(homedir, name);

      if (strcasecmp(profiledir, "[AFS]") == 0)
	{
	  strcpy(profiledir, name);
	  if (strcasecmp(name, "[LOCAL]"))
	    strcat(profiledir, "/.winprofile");
	}
  
      fprintf(fout, "%d %s %d %d %s %s %s\n",
		      users_id, login, unix_uid, status, mit_id, 
	      homedir, profiledir);
    }
  
  if (sqlca.sqlcode < 0)
    db_error(sqlca.sqlcode);
  EXEC SQL CLOSE u_cursor;
  EXEC SQL COMMIT;

  if (fclose(fout))
  {
    fprintf(stderr, "Unsuccessful file close of winuser.db\n");
    exit(MR_CCONFIG);
  }

  fix_file(foutf);

  return 1;
}

int do_groups(void)
{
  FILE *fout;
  char foutf[MAXPATHLEN];
  char foutft[MAXPATHLEN];
  EXEC SQL BEGIN DECLARE SECTION;
  char listname[LIST_NAME_SIZE];
  char description[LIST_DESCRIPTION_SIZE];
  char acltype[LIST_ACL_TYPE_SIZE];
  int aclid;
  char aclname[STRINGS_STRING_SIZE];
  int list_id, active, publicflg, hidden, maillist, grouplist;
  EXEC SQL END DECLARE SECTION;

  sprintf(foutf, "%s/wingroup.db", winad_dir);
  sprintf(foutft, "%s~", foutf);

  fout = fopen(foutft, "w");
  if (!fout)
  {
    perror("cannot open wingroup.db for write");
    exit(MR_OCONFIG);
  }

  EXEC SQL DECLARE l_cursor CURSOR FOR
    SELECT list_id, name, active, publicflg, hidden, maillist,
    grouplist, description, acl_type, acl_id
    FROM list
    ORDER BY list_id;
  EXEC SQL OPEN l_cursor;
  while (1)
    {
      EXEC SQL FETCH l_cursor INTO :list_id, :listname, :active, :publicflg,
	:hidden, :maillist, :grouplist, :description, :acltype, :aclid;
      
      if (sqlca.sqlcode)
	      break;

      strtrim(listname);
      strtrim(description);
      strtrim(acltype);

      
      strcpy(aclname, "NONE");
      if (strcmp(acltype, "LIST") == 0)
      {
        EXEC SQL SELECT name into :aclname
        FROM list
        WHERE list_id = :aclid;
      }
      else if (strcmp(acltype, "USER") == 0)
      {
        EXEC SQL SELECT login into :aclname
        FROM users
        WHERE users_id = :aclid;
      }
      else if (strcmp(acltype, "KERBEROS") == 0)
      {
        EXEC SQL SELECT string into :aclname
        FROM strings
        WHERE string_id = :aclid;
      }
      
      strtrim(aclname);
       
      fprintf(fout, "%d %s %d %d %d %d %d %s %s %s\n",
		    list_id, listname, active, publicflg, hidden, maillist,
	      grouplist, acltype, aclname, description);
	}

  if (sqlca.sqlcode < 0)
    db_error(sqlca.sqlcode);
  EXEC SQL CLOSE l_cursor;
  EXEC SQL COMMIT;

  if (fclose(fout))
  {
    fprintf(stderr, "Unsuccessful file close of wingroup.db\n");
    exit(MR_CCONFIG);
  }

  fix_file(foutf);
  return 1;
}

int do_groupmembership(void)
{
  FILE *fout;
  char foutf[MAXPATHLEN];
  char foutft[MAXPATHLEN];
  EXEC SQL BEGIN DECLARE SECTION;
  char member_type[IMEMBERS_MEMBER_TYPE_SIZE];
  char member_name[STRINGS_STRING_SIZE];
  int list_id;
  EXEC SQL END DECLARE SECTION;

  sprintf(foutf, "%s/wingmember.db", winad_dir);
  sprintf(foutft, "%s~", foutf);

  fout = fopen(foutft, "w");
  if (!fout)
  {
    perror("cannot open wingmember.db for write");
    exit(MR_OCONFIG);
  }

  EXEC SQL DECLARE list_cursor CURSOR FOR
    SELECT list_id
    FROM list
    WHERE active != 0
    ORDER BY list_id;
  EXEC SQL OPEN list_cursor;
  while (1)
    {
      EXEC SQL FETCH list_cursor INTO :list_id;
      
      if (sqlca.sqlcode)
	      break;
      
      /* get all the users */
      EXEC SQL DECLARE csr001 CURSOR FOR
        SELECT i.member_type, u.login
        FROM users u, imembers i
        WHERE i.list_id = :list_id AND i.member_type = 'USER'
        AND i.member_id = u.users_id 
        ORDER BY u.login;

      EXEC SQL OPEN csr001;
      while(1)
      {
        EXEC SQL FETCH csr001 into :member_type, :member_name;
        if (sqlca.sqlcode)
          break;
        fprintf(fout, "%d %s %s\n",
		      list_id, member_type, member_name);
      }

      if (sqlca.sqlcode < 0)
        db_error(sqlca.sqlcode);
      EXEC SQL CLOSE csr001;

      /* get all the KERBEROS AND STRINGS */
      EXEC SQL DECLARE csr002 CURSOR FOR
        SELECT i.member_type, s.string
        FROM strings s, imembers i
        WHERE i.list_id = :list_id AND 
        (i.member_type = 'KERBEROS' OR i.member_type = 'STRING')
        AND i.member_id = s.string_id 
        ORDER BY s.string;

      EXEC SQL OPEN csr002;
      while(1)
      {
        EXEC SQL FETCH csr002 into :member_type, :member_name;
        if (sqlca.sqlcode)
          break;
        fprintf(fout, "%d %s %s\n",
		      list_id, member_type, member_name);
      }

      if (sqlca.sqlcode < 0)
        db_error(sqlca.sqlcode);

      EXEC SQL CLOSE csr002;

      /* get all the machines */
      EXEC SQL DECLARE csr003 CURSOR FOR
	SELECT i.member_type, m.name
	FROM machine m, imembers i
	WHERE i.list_id = :list_id AND i.member_type = 'MACHINE'
	AND i.member_id = m.mach_id
	ORDER BY m.name;

      EXEC SQL OPEN csr003;
      while (1)
	{
	  EXEC SQL FETCH csr003 into :member_type, :member_name;
	  if (sqlca.sqlcode)
	    break;
	  fprintf(fout, "%d %s %s\n", list_id, member_type, member_name);
	}

      if (sqlca.sqlcode < 0)
	db_error(sqlca.sqlcode);
       EXEC SQL CLOSE csr003;
    }

  if (sqlca.sqlcode < 0)
    db_error(sqlca.sqlcode);

  EXEC SQL CLOSE list_cursor;
  EXEC SQL COMMIT;

  if (fclose(fout))
  {
    fprintf(stderr, "Unsuccessful file close of wingmember.db\n");
    exit(MR_CCONFIG);
  }

  fix_file(foutf);
  return 1;
}

int do_containers(void)
{
  FILE *fout;
  char foutf[MAXPATHLEN];
  char foutft[MAXPATHLEN];
  EXEC SQL BEGIN DECLARE SECTION;
  char container_name[CONTAINERS_NAME_SIZE];
  char acl_type[CONTAINERS_ACL_TYPE_SIZE];
  char acl_name[STRINGS_STRING_SIZE];
  char description[CONTAINERS_DESCRIPTION_SIZE];
  int cnt_id;
  int acl_id;
  EXEC SQL END DECLARE SECTION;

  sprintf(foutf, "%s/wincontainer.db", winad_dir);
  sprintf(foutft, "%s~", foutf);

  fout = fopen(foutft, "w");
  if (!fout)
  {
    perror("cannot open wincontainer.db for write");
    exit(MR_OCONFIG);
  }

  EXEC SQL DECLARE container_cursor CURSOR FOR
    SELECT name, cnt_id, acl_type, acl_id, description
    FROM containers
    ORDER BY cnt_id, name;
  EXEC SQL OPEN container_cursor;
  while (1)
    {
      EXEC SQL FETCH container_cursor INTO :container_name, :cnt_id, 
      :acl_type, :acl_id, :description ;
      
      if (sqlca.sqlcode)
	      break;
      
      strtrim(container_name);
      strtrim(acl_type);
      strtrim(description);

      strcpy(acl_name, "NONE");
      if (strcmp(acl_type, "LIST") == 0)
      {
        EXEC SQL SELECT name into :acl_name
        FROM list
        WHERE list_id = :acl_id;
      }
      else if (strcmp(acl_type, "USER") == 0)
      {
        EXEC SQL SELECT login into :acl_name
        FROM users
        WHERE users_id = :acl_id;
      }
      else if (strcmp(acl_type, "KERBEROS") == 0)
      {
        EXEC SQL SELECT string into :acl_name
        FROM strings
        WHERE string_id = :acl_id;
      }
      
      strtrim(acl_name);
       
      fprintf(fout, "%d,%s,%s,%s,%s\n",
		    cnt_id, container_name, acl_type, acl_name,
        description);
	}
  if (sqlca.sqlcode < 0)
    db_error(sqlca.sqlcode);

  EXEC SQL CLOSE container_cursor;
  EXEC SQL COMMIT;

  if (fclose(fout))
  {
    fprintf(stderr, "Unsuccessful file close of wincontainer.db\n");
    exit(MR_CCONFIG);
  }

  fix_file(foutf);
  return 1;
}