bin/login.pl



#=====================================================================
# LedgerSMB Small Medium Business Accounting
# http://www.ledgersmb.org/
#

# Copyright (C) 2006
# This work contains copyrighted information from a number of sources all used
# with permission.
#
# This file contains source code included with or based on SQL-Ledger which
# is Copyright Dieter Simader and DWS Systems Inc. 2000-2005 and licensed 
# under the GNU General Public License version 2 or, at your option, any later 
# version.  For a full list including contact information of contributors, 
# maintainers, and copyright holders, see the CONTRIBUTORS file.
#
# Original Copyright Notice from SQL-Ledger 2.6.17 (before the fork):
# Copyright (c) 2000
#
#  Author: DWS Systems Inc.
#     Web: http://www.sql-ledger.org
#
#
# 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., 675 Mass Ave, Cambridge, MA 02139, USA.
#======================================================================


1;
use DBI;
use LedgerSMB::User;
use LedgerSMB::Form;

## will need this later when session_destroy will be used
#use LedgerSMB::Session;


$form = new Form;

$locale = new Locale $language, "login";
$form->{charset} = $locale->{charset};

# customization
if (-f "bin/custom/$form->{script}") {
    eval { require "bin/custom/$form->{script}"; };
    $form->error($@) if ($@);
}

# per login customization
if (-f "bin/custom/$form->{login}_$form->{script}") {
    eval { require "bin/custom/$form->{login}_$form->{script}"; };
    $form->error($@) if ($@);
}

# window title bar, user info
$form->{titlebar} = "LedgerSMB ".$locale->text('Version'). " $form->{version}";

if ($form->{action}) {
    $form->{titlebar} .= " - $myconfig{name} - $myconfig{dbname}";
    &{ $locale->findsub($form->{action}) };

} else {
    &login_screen;
}


1;


sub login_screen {

    $form->{stylesheet} = "ledger-smb.css";
    $form->{favicon} = "favicon.ico";

    $form->{endsession} = 1;

    if ($form->{login}) {
        $sf = q|function sf() { document.login.password.focus(); }|;
    } else {
        $sf = q|function sf() { document.login.login.focus(); }|;
    }

    my $headeradd = qq|
    <script language="JavaScript" type="text/javascript">
    <!--
        var agt = navigator.userAgent.toLowerCase();
        var is_major = parseInt(navigator.appVersion);
        var is_nav = ((agt.indexOf('mozilla') != -1) && (agt.indexOf('spoofer') == -1)
                     && (agt.indexOf('compatible') == -1) && (agt.indexOf('opera') == -1)
                     && (agt.indexOf('webtv') == -1));
        var is_nav4lo = (is_nav && (is_major <= 4));

        function jsp() {
            if (is_nav4lo){
                document.login.js.value = "0";
            } else {
                document.login.js.value = "1";
            }
        }

        $sf
    // End -->
    </script>|;

    $form->header(1, $headeradd);

    print qq|

<body class="login" onload="jsp(); sf();">
    <br /><br />
    <center>
        <table class="login" border="3" cellpadding="20">
            <tr>
                <td class="login" align="center">
                    <a href="http://www.ledgersmb.org/" target="_top"><img src="ledger-smb.png" width="200" heith="100" border="0" alt="LedgerSMB Logo" /></a>
                    <h1 class="login" align="center">|.$locale->text('Version').qq| $form->{version}</h1>
                    <p>
                    <form method="post" action="$form->{script}" name="login">
                    <table width="100%">
                        <tr>
                            <td align="center">
                                <table>
                                    <tr>
                                        <th align="right">|.$locale->text('Name').qq|</th>
                                            <td><input class="login" name="login" size="30" value="$form->{login}" /></td>
                                    </tr> 
                                    <tr>
                                        <th align="right">|.$locale->text('Password').qq|</th>
                                        <td><input class="login" type="password" name="password" size="30" /></td>
                                    </tr>
                                </table>
                                <br />
                            </td>
                        </tr>
                    </table>
                        <input type="hidden" name="path" value="$form->{path}" />
                        <input type="hidden" name="js" value="$form->{js}" />
                        <button type="submit" name="action" value="login">|.$locale->text('Login').qq|</button>
                    </form>
                    </p>
                </td>
            </tr>
        </table>
    <p><a href="admin.pl"
        >|.$locale->text("Administrative login").qq|</a></p>
    </center>
</body>
</html>|;

}


sub selectdataset {
    my ($login) = @_;

    if (-f "css/ledger-smb.css") {
        $form->{stylesheet} = "ledger-smb.css";
    }

    $form->header(1);

    print qq|
<body class="login" onload="document.forms[0].password.focus()" />
    <br /><br />
    <center>
    <table class="login" border="3" cellpadding="20">
        <tr>
            <td class="login" align="center">
                <a href="http://www.ledgersmb.org/" target="_top"><img src="ledger-smb.png" width="100" heith="100" border="0" alt="LedgerSMB Logo" /></a>
                <h1 class="login" align="center">|.$locale->text('Version').qq| $form->{version}</h1>
                <p>
                <form method="post" action="$form->{script}">
                    <input type="hidden" name="beenthere" value="1" />
                    <input type="hidden" name="js" value="$form->{js}" />
                    <input type="hidden" name="path" value="$form->{path}" />
                    <table width="100%">
                        <tr>
                            <td align="center">
                                <table>
                                    <tr>
                                        <th align="right">|.$locale->text('Name').qq|</th>
                                        <td>$form->{login}</td>
                                    </tr> 
                                    <tr>
                                        <th align="right">|.$locale->text('Password').qq|</th>
                                        <td><input class="login" type="password" name="password" size="30" value="$form->{password}" /></td>
                                    </tr>
                                    <tr>
                                        <th align="right">|.$locale->text('Company').qq|</th>
                                        <td>|;

        $checked = "checked";
        foreach $login (sort { $login{$a} cmp $login{$b} } keys %{ $login }) {
            print qq| <br /><input class="login" type="radio" name="login" value="$login" $checked>$login{$login} |;
            $checked = "";
        }

    print qq|
                                        </td>
                                    </tr>
                                </table>
                                <br />
                                <button type="submit" name="action" value="login">|.$locale->text('Login').qq|</button>
                            </td>
                        </tr>
                    </table>
                </form>
            </td>
        </tr>
    </table>
    </center>
</body>
</html>|;

}


sub login {

    $form->{stylesheet} = "ledger-smb.css";
    $form->{favicon} = "favicon.ico";

    $form->error($locale->text('You did not enter a name!')) unless ($form->{login});

    if (! $form->{beenthere}) {
        open(FH, "$memberfile") or $form->error("$memberfile : $!");
        @a = <FH>;
        close(FH);

        foreach $item (@a) {

            if ($item =~ /^\[(.*?)\]/) {
                $login = $1;
                $found = 1;
            }

            if ($item =~ /^company=/) {
                if ($login =~ /$form->{login}\@/ && $found) {
                    ($null, $name) = split /=/, $item, 2;
                    $login{$login} = $name;
                }
                $found = 0;
            }
        }

        if (keys %login > 1) {
            &selectdataset(\%login);
            exit;
        }
    }


    $user = new User $memberfile, $form->{login};

    # if we get an error back, bale out
    if (($errno = $user->login(\%$form, $userspath)) <= -1) {

        $errno *= -1;
        $err[1] = $locale->text('Access Denied!');
        $err[2] = $locale->text('Incorrect Dataset version!');
        $err[3] = $locale->text('Dataset is newer than version!');

        if ($errno == 4) {
            # upgrade dataset and log in again
            open FH, ">$userspath/nologin" or $form->error($!);

            for (qw(dbname dbhost dbport dbdriver dbuser dbpasswd)) { $form->{$_} = $user->{$_} }

            $form->{dbpasswd} = unpack 'u', $form->{dbpasswd};

            $form->{dbupdate} = "db$user->{dbname}";
            $form->{$form->{dbupdate}} = 1;

            $form->header;
            print qq|<body>|;
            print $locale->text('Upgrading to Version')." $form->{version} ... ";

            # required for Oracle
            $form->{dbdefault} = $sid;

            $user->dbupdate(\%$form);

            # remove lock file
            unlink "$userspath/nologin";

            print $locale->text('done');

            print "<p><a href=\"menu.pl?login=$form->{login}&amp;sessionid=$form->{sessionid}&amp;path=$form->{path}&amp;action=display&amp;main=company_logo&amp;js=$form->{js}>\">".$locale->text('Continue')."</a>";
            print qq|</body>|;
            exit;
        }

        $form->error($err[$errno]);
    }

    # made it this far, setup callback for the menu
    $form->{callback} = "menu.pl?action=display&password=$form->{password}";
    for (qw(login path js)) { $form->{callback} .= "&$_=$form->{$_}" }

    # check for recurring transactions
    if ($user->{acs} !~ /Recurring Transactions/) {

        if ($user->check_recurring(\%$form)) {
            $form->{callback} .= "&main=recurring_transactions";
        } else {
            $form->{callback} .= "&main=company_logo";
        }

    } else {

        if ($user->{role} eq 'user') {
            $form->{callback} .= "&main=company_logo";
        } else {

            if ($user->check_recurring(\%$form)) {
                $form->{callback} .= "&main=recurring_transactions";
            } else {
                $form->{callback} .= "&main=company_logo";
            }
        }
    }

    $form->redirect;

}


sub logout {

    $form->{callback} = "$form->{script}?path=$form->{path}&login=$form->{login}";
    $form->{endsession} = 1;
    #delete the cookie in the browser manually (can't use session_destroy here unfortunately)
    print qq|Set-Cookie: LedgerSMB=; path=/;\n|;
    $form->redirect;
}