// Copyright (C) 1999,2000 Bruce Guenter <bruceg@em.ca>

//

// This program is free software; you can redistribute it and/or modify

// it under the terms of the GNU General Public License as published by

// the Free Software Foundation; either version 2 of the License, or

// (at your option) any later version.

//

// This program is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

// GNU General Public License for more details.

//

// You should have received a copy of the GNU General Public License

// along with this program; if not, write to the Free Software

// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

#include <config.h>

#include <stdio.h>

#include <sys/stat.h>

#include "fdbuf/fdbuf.h"

#include "config/configrc.h"

#include "misc/stat_fns.h"

#include "misc/exec.h"

#include "vcommand.h"

const char* cli_program = "vsetup";

const char* cli_help_prefix = "Sets up a virtual domain for its first use\n";

const char* cli_help_suffix = "";

const char* cli_args_usage = "";

const int cli_args_min = 0;

const int cli_args_max = 0;

static int o_quiet = false;

// This program sets up the basic set of necessary files needed to use an

// account as a virtual domain with vmailmgr.

// The users directory is created if it does not exist.

// A F<.qmail-default> file is created with the proper contents.

// If a F<.qmail-default> previously existed, it is renamed to

// F<.qmail-default~>.

// Three system aliases (C<root>, C<mailer-daemon>, and C<postmaster>)

// are created to point to the configured postmaster.

cli_option cli_options[] = {

  { 0, "quiet", cli_option::flag, true, &o_quiet,

    "Suppress all status messages", 0 },

  {0}

};

// RETURN VALUE

//

// 0 if all files and directories are successfully created, 1 otherwise.

// SEE ALSO

//

// vdeliver(1), vmailmgrd(8)

// NOTES

//

// This program expects the environment variable C<HOME> to be set, and

// executes a change directory to the contents of it before starting.  It

// is also required that you change user to the domain owner before using

// these utilities.

mystring user_dir;

bool setup_user_dir()

{

  if(!is_exist(user_dir.c_str())) {

    if(mkdir(user_dir.c_str(), 0755)) {

      if(!o_quiet)

	ferr << "vsetup: error: could not create users directory.\n";

      return false;

    }

    else

      if(!o_quiet)

	fout << "vsetup: created users directory.\n";

  }

  else

    if(!o_quiet)

      fout << "vsetup: users directory already exists.\n";

  return true;

}

bool setup_qmail_default()

{

  if(is_exist(".qmail-default")) {

    if(!o_quiet)

      ferr << "vsetup: warning: '.qmail-default' file exists, renaming to "

	"'.qmail-default~'.\n";

    if(rename(".qmail-default", ".qmail-default~")) {

      if(!o_quiet)

	ferr << "vsetup: error: rename failed.\n";

      return false;

    }

  }

  fdobuf out(".qmail-default", fdobuf::create | fdobuf::excl, 0644);

  if(!out) {

    if(!o_quiet)

      ferr << "vsetup: error: unable to open file '.qmail-default' for output.\n";

    return false;

  }

  out << "|" BINDIR "/vdeliver\n";

  if(!out.flush() || !out.close()) {

    if(!o_quiet)

      ferr << "vsetup: error: writing to file '.qmail-default' failed.\n";

    return false;

  }

  if(!o_quiet)

    fout << "vsetup: wrote '.qmail-default' file.\n";

  return true;

}

bool setup_alias(mystring alias, const mystring& dest)

{

  alias = alias.lower();

  if(domain.exists(alias)) {

    if(!o_quiet)

      ferr << "vsetup: warning: user '" << alias

	   << "' already exists, skipping.\n";

    return true;

  }

  response resp = domain.set(&vpw, true);

  if(!resp) {

    if(!o_quiet)

      ferr << "vsetup: error: adding alias '" << alias << "' failed:\n  "

	   << resp.msg << endl;

    return false;

  }

  if(!o_quiet)

    fout << "vsetup: added alias '" << alias << "'\n";

  return true;

}

bool setup_passwd()

{

  mystring email = config->postmaster_email();

  mystring_iter iter(config->postmaster_aliases().str());

  while(iter) {

    if(!setup_alias(*iter, email))

      break;

    ++iter;

  }

  return !iter;

}

int cli_main(int, char* [])

{

  if(!go_home())

    return 1;

  user_dir = config->user_dir();

  if(execute("vsetup-pre")) {

    if(!o_quiet)

      ferr << "vsetup: Execution of 'vsetup-pre' failed!\n";

    return 1;

  }

  if(!setup_user_dir())

    return 1;

  if(!setup_qmail_default())

    return 1;

  if(!setup_passwd())

    return 1;

  if(execute("vsetup-post")) {

    if(!o_quiet)

      ferr << "vsetup: Execution of 'vsetup-post' failed!\n";

    return 1;

  }

  return 0;

}