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login_page.php
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login_page.php
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<?php
# MantisBT - a php based bugtracking system
# MantisBT 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.
#
# MantisBT 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 MantisBT. If not, see <http://www.gnu.org/licenses/>.
/**
* Login page POSTs results to login.php
* Check to see if the user is already logged in
*
* @package MantisBT
* @copyright Copyright (C) 2000 - 2002 Kenzaburo Ito - kenito@300baud.org
* @copyright Copyright (C) 2002 - 2012 MantisBT Team - mantisbt-dev@lists.sourceforge.net
* @link http://www.mantisbt.org
*/
/**
* MantisBT Core API's
*/
require_once( 'core.php' );
$f_error = gpc_get_bool( 'error' );
$f_cookie_error = gpc_get_bool( 'cookie_error' );
$f_return = string_sanitize_url( gpc_get_string( 'return', '' ) );
$f_username = gpc_get_string( 'username', '' );
$f_perm_login = gpc_get_bool( 'perm_login', false );
$f_secure_session = gpc_get_bool( 'secure_session', false );
$f_secure_session_cookie = gpc_get_cookie( config_get_global( 'cookie_prefix' ) . '_secure_session', null );
$t_session_validation = ( ON == config_get_global( 'session_validation' ) );
// If user is already authenticated and not anonymous
if( auth_is_user_authenticated() && !current_user_is_anonymous() ) {
// If return URL is specified redirect to it; otherwise use default page
if( !is_blank( $f_return ) ) {
print_header_redirect( $f_return, false, false, true );
}
else {
print_header_redirect( config_get( 'default_home_page' ) );
}
}
# Check for automatic logon methods where we want the logon to just be handled by login.php
if ( auth_automatic_logon_bypass_form() ) {
$t_uri = "login.php";
if ( ON == config_get( 'allow_anonymous_login' ) ) {
$t_uri = "login_anon.php";
}
if ( !is_blank( $f_return ) ) {
$t_uri .= "?return=" . string_url( $f_return );
}
print_header_redirect( $t_uri );
exit;
}
# Login page shouldn't be indexed by search engines
html_robots_noindex();
html_page_top1();
html_page_top2a();
echo '<br /><div align="center">';
# Display short greeting message
# echo lang_get( 'login_page_info' ) . '<br />';
# Only echo error message if error variable is set
if ( $f_error ) {
echo '<font color="red">' . lang_get( 'login_error' ) . '</font>';
}
if ( $f_cookie_error ) {
echo lang_get( 'login_cookies_disabled' ) . '<br />';
}
# Determine if secure_session should default on or off?
# - If no errors, and no cookies set, default to on.
# - If no errors, but cookie is set, use the cookie value.
# - If errors, use the value passed in.
if ( $t_session_validation ) {
if ( !$f_error && !$f_cookie_error ) {
$t_default_secure_session = ( is_null( $f_secure_session_cookie ) ? true : $f_secure_session_cookie );
} else {
$t_default_secure_session = $f_secure_session;
}
}
echo '</div>';
?>
<!-- Login Form BEGIN -->
<br />
<div align="center">
<form name="login_form" method="post" action="login.php">
<?php # CSRF protection not required here - form does not result in modifications ?>
<table class="width50" cellspacing="1">
<tr>
<td class="form-title">
<?php
if ( !is_blank( $f_return ) ) {
?>
<input type="hidden" name="return" value="<?php echo string_html_specialchars( $f_return ) ?>" />
<?php
}
echo lang_get( 'login_title' ) ?>
</td>
<td class="right">
<?php
if ( ON == config_get( 'allow_anonymous_login' ) ) {
print_bracket_link( 'login_anon.php?return=' . string_url( $f_return ), lang_get( 'login_anonymously' ) );
}
?>
</td>
</tr>
<tr class="row-1">
<td class="category">
<?php echo lang_get( 'username' ) ?>
</td>
<td>
<input type="text" name="username" size="32" maxlength="<?php echo DB_FIELD_SIZE_USERNAME;?>" value="<?php echo string_attribute( $f_username ); ?>" />
</td>
</tr>
<tr class="row-2">
<td class="category">
<?php echo lang_get( 'password' ) ?>
</td>
<td>
<input type="password" name="password" size="32" maxlength="<?php echo auth_get_password_max_size(); ?>" />
</td>
</tr>
<?php
if( ON == config_get( 'allow_permanent_cookie' ) ) {
?>
<tr class="row-1">
<td class="category">
<?php echo lang_get( 'save_login' ) ?>
</td>
<td>
<input type="checkbox" name="perm_login" <?php echo ( $f_perm_login ? 'checked="checked" ' : '' ) ?>/>
</td>
</tr>
<?php
}
if ( $t_session_validation ) {
?>
<tr class="row-2">
<td class="category">
<?php echo lang_get( 'secure_session' ) ?>
</td>
<td>
<input type="checkbox" name="secure_session" <?php echo ( $t_default_secure_session ? 'checked="checked" ' : '' ) ?>/>
<?php echo '<span class="small">' . lang_get( 'secure_session_long' ) . '</span>' ?>
</td>
</tr>
<?php } ?>
<tr>
<td class="center" colspan="2">
<input type="submit" class="button" value="<?php echo lang_get( 'login_button' ) ?>" />
</td>
</tr>
</table>
</form>
</div>
<?php
echo '<br /><div align="center">';
print_signup_link();
echo ' ';
print_lost_password_link();
echo '</div>';
#
# Do some checks to warn administrators of possible security holes.
# Since this is considered part of the admin-checks, the strings are not translated.
#
if ( config_get_global( 'admin_checks' ) == ON ) {
# Generate a warning if administrator/root is valid.
$t_admin_user_id = user_get_id_by_name( 'administrator' );
if ( $t_admin_user_id !== false ) {
if ( user_is_enabled( $t_admin_user_id ) && auth_does_password_match( $t_admin_user_id, 'root' ) ) {
echo '<div class="warning" align="center">', "\n";
echo "\t", '<p><font color="red">', lang_get( 'warning_default_administrator_account_present' ), '</font></p>', "\n";
echo '</div>', "\n";
}
}
# Check if the admin directory is available and is readable.
$t_admin_dir = dirname( __FILE__ ) . DIRECTORY_SEPARATOR . 'admin' . DIRECTORY_SEPARATOR;
if ( is_dir( $t_admin_dir ) ) {
echo '<div class="warning" align="center">', "\n";
echo '<p><font color="red">', lang_get( 'warning_admin_directory_present' ), '</font></p>', "\n";
echo '</div>', "\n";
}
if ( is_dir( $t_admin_dir ) && is_readable( $t_admin_dir ) && is_executable( $t_admin_dir ) && @file_exists( "$t_admin_dir/." ) ) {
# since admin directory and db_upgrade lists are available check for missing db upgrades
# Check for db upgrade for versions < 1.0.0 using old upgrader
$t_db_version = config_get( 'database_version' , 0 );
# if db version is 0, we haven't moved to new installer.
if ( $t_db_version == 0 ) {
$t_upgrade_count = 0;
if ( db_table_exists( db_get_table( 'mantis_upgrade_table' ) ) ) {
$query = "SELECT COUNT(*) from " . db_get_table( 'mantis_upgrade_table' ) . ";";
$result = db_query_bound( $query );
if ( db_num_rows( $result ) > 0 ) {
$t_upgrade_count = (int)db_result( $result );
}
}
if ( $t_upgrade_count > 0 ) { # table exists, check for number of updates
# new config table database version is 0.
# old upgrade tables exist.
# assume user is upgrading from <1.0 and therefore needs to update to 1.x before upgrading to 1.2
echo '<div class="warning" align="center">';
echo '<p><font color="red">', lang_get( 'error_database_version_out_of_date_1' ), '</font></p>';
echo '</div>';
} else {
# old upgrade tables do not exist, yet config database_version is 0
echo '<div class="warning" align="center">';
echo '<p><font color="red">', lang_get( 'error_database_no_schema_version' ), '</font></p>';
echo '</div>';
}
}
# Check for db upgrade for versions > 1.0.0 using new installer and schema
require_once( 'admin' . DIRECTORY_SEPARATOR . 'schema.php' );
$t_upgrades_reqd = count( $upgrade ) - 1;
if ( ( 0 < $t_db_version ) &&
( $t_db_version != $t_upgrades_reqd ) ) {
if ( $t_db_version < $t_upgrades_reqd ) {
echo '<div class="warning" align="center">';
echo '<p><font color="red">', lang_get( 'error_database_version_out_of_date_2' ), '</font></p>';
echo '</div>';
} else {
echo '<div class="warning" align="center">';
echo '<p><font color="red">', lang_get( 'error_code_version_out_of_date' ), '</font></p>';
echo '</div>';
}
}
}
} # if 'admin_checks'
?>
<!-- Autofocus JS -->
<?php if ( ON == config_get( 'use_javascript' ) ) { ?>
<script type="text/javascript" language="JavaScript">
<!--
window.document.login_form.<?php if ( is_blank( $f_username ) ) { echo 'username'; } else { echo 'password'; } ?>.focus();
// -->
</script>
<?php } ?>
<?php
html_page_bottom1a( __FILE__ );