#!/usr/bin/perl
# TmNetWiki version 0.4 (September 11, 2002)
# Copyright (C) 2002 Adam Brate
#   <ab@adambrate.com> 
# Based on the GPLed UseModWiki 0.92
# Copyright (C) 2000-2001 Clifford A. Adams
#    <caadams@frontiernet.net> or <usemod@usemod.com>
# Based on the GPLed AtisWiki 0.3  (C) 1998 Markus Denker
#    <marcus@ira.uka.de>
# ...which was based on
#    the LGPLed CVWiki CVS-patches (C) 1997 Peter Merel
#    and The Original WikiWikiWeb  (C) Ward Cunningham
#        <ward@c2.com> (code reused with permission)
# Email and ThinLine options by Jim Mahoney <mahoney@marlboro.edu>
#
# 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


package Wiki::error;
use strict;
# error handling.

# needs subs Wiki::utility: ValidId
#            Wiki::file: ReadFile
#            Wiki::template: GetCommonFooter
#            Wiki::translate: Ts, T
#            Wiki::user: UserIsEditor, UserIsAdmin

use base 'Exporter';
use Wiki::consts;

use Wiki::utility;
use Wiki::file;
use Wiki::template;
use Wiki::user;
use Wiki::translate;
#if ($^V and $^V gt v5.6.0) {
#    our @EXPORT;
#else {
    use vars qw(@EXPORT);
#}
@EXPORT = qw(
  ReportError
  ValidIdOrDie
  ReadFileOrDie
  UserIsEditorOrError
  UserIsAdminOrError
);

sub ReportError {
  my ($errmsg) = @_;

  print $q->header, "<H2>", $errmsg, "</H2>", $q->end_html;
}

sub ValidIdOrDie {
  my ($id) = @_;
  my $error;

  $error = &ValidId($id);
  if ($error ne "") {
    &ReportError($error);
    return 0;
  }
  return 1;
}

sub ReadFileOrDie {
  my ($fileName) = @_;
  my ($status, $data);

  ($status, $data) = &ReadFile($fileName);
  if (!$status) {
    die(Ts('Can not open %s', $fileName) . ": $!");
  }
  return $data;
}

sub UserIsEditorOrError {
  if (!&UserIsEditor()) {
    print '<p>', T('This operation is restricted to site editors only...');
    print &GetCommonFooter();
    return 0;
  }
  return 1;
}

sub UserIsAdminOrError {
  if (!&UserIsAdmin()) {
    print '<p>', T('This operation is restricted to administrators only...');
    print &GetCommonFooter();
    return 0;
  }
  return 1;
}