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<?php
/* This file loads configuration settings from the data file settings.php and
* sets up some needed variables.
*
* The settings.php file is created during installation using the web-based db
* setup page (install/index.php).
*
* <b>Note:</b>
* DO NOT EDIT THIS FILE!
*
*
* @author Craig Knudsen <cknudsen@cknudsen.com>
* @copyright Craig Knudsen, <cknudsen@cknudsen.com>, http://www.k5n.us/cknudsen
* @license http://www.gnu.org/licenses/gpl.html GNU GPL
* @version $Id: config.php,v 1.75.2.9 2008/02/17 02:21:25 cknudsen Exp $
* @package WebCalendar
*/
/* Prints a fatal error message to the user along with a link to the
* Troubleshooting section of the WebCalendar System Administrator's Guide.
*
* Execution is aborted.
*
* @param string $error The error message to display
* @internal We don't normally put functions in this file. But, since this
* file is included before some of the others, this function either
* goes here or we repeat this code in multiple files.
* Additionally, we don't want to call too many external functions
* from here since we could end up calling the function that called
* this one.
* NOTES: Don't call translate from here. This function if often called
* before translation stuff is initialized!
*/
function die_miserable_death ( $error ) {
global $APPLICATION_NAME, $LANGUAGE, $login, $TROUBLE_URL;
// Make sure app name is set.
$appStr = ( empty ( $APPLICATION_NAME ) ? 'WebCalendar' : $APPLICATION_NAME );
$h2_label = $appStr . ' ' . 'Error';
$title = $appStr . ': ' . 'Fatal Error';
$trouble_label = 'Troubleshooting Help';
$user_BGCOLOR = '#FFFFFF';
echo <<<EOT
<html>
<head><title>{$title}</title></head>
<body bgcolor ="{$user_BGCOLOR}">
<h2>{$h2_label}</h2>
<p>{$error}</p><hr />
<p><a href="{$TROUBLE_URL}" target="_blank">{$trouble_label}</a></p>
</body>
</html>
EOT;
exit;
}
function db_error ( $doExit = false, $sql = '' ) {
global $settings;
$ret = str_replace ( 'XXX', dbi_error (), translate ( 'Database error XXX.' ) )
. ( ! empty ( $settings['mode'] ) && $settings['mode'] == 'dev' && !
empty ( $sql ) ? '<br />SQL:<br />' . $sql : '' );
if ( $doExit ) {
echo $ret;
exit;
} else
return $ret;
}
/**
* Get the full path to a file located in the webcalendar includes
* directory.
*/
function get_full_include_path ( $filename )
{
if ( preg_match ( "/(.*)config.php/", __FILE__, $matches ) ) {
$fileLoc = $matches[1] . $filename;
return $fileLoc;
} else {
// Oops. This file is not named config.php!
die_miserable_death ( "Crap! Someone renamed config.php" );
}
}
function do_config ( $fileLoc ) {
global $db_database, $db_host, $db_login, $db_password, $db_persistent,
$db_type, $NONUSER_PREFIX, $phpdbiVerbose, $PROGRAM_DATE, $PROGRAM_NAME,
$PROGRAM_URL, $PROGRAM_VERSION, $readonly, $run_mode, $settings, $single_user,
$single_user_login, $TROUBLE_URL, $use_http_auth, $user_inc;
$PROGRAM_VERSION = 'v1.2.b1';
$PROGRAM_DATE = '25 Feb 2008';
$PROGRAM_NAME = 'WebCalendar ' . "$PROGRAM_VERSION ($PROGRAM_DATE)";
$PROGRAM_URL = 'http://www.k5n.us/webcalendar.php';
$TROUBLE_URL = 'docs/WebCalendar-SysAdmin.html#trouble';
// Open settings file to read.
$settings = array ();
if ( file_exists ( $fileLoc ) ) {
$fd = @fopen ( $fileLoc, 'rb', true );
}
if ( empty ( $fd ) && defined ( '__WC_INCLUDEDIR' ) ) {
$fd = @fopen ( __WC_INCLUDEDIR . '/settings.php', 'rb', true );
if ( $fd )
$fileLoc = __WC_INCLUDEDIR . '/settings.php';
}
// If still empty.... use __FILE__.
if ( empty ( $fd ) ) {
$testName = get_full_include_path ( "settings.php" );
$fd = @fopen ( $fileLoc, 'rb', true );
if ( $fd )
$fileLoc = $testName;
}
if ( empty ( $fd ) || filesize ( $fileLoc ) == 0 ) {
// There is no settings.php file.
// Redirect user to install page if it exists.
if ( file_exists ( 'install/index.php' ) ) {
header ( 'Location: install/index.php' );
exit;
} else
die_miserable_death (
translate ( 'Could not find settings.php file...' ) );
}
// We don't use fgets () since it seems to have problems with Mac-formatted
// text files. Instead, we read in the entire file, and split the lines manually.
$data = '';
while ( ! feof ( $fd ) ) {
$data .= fgets ( $fd, 4096 );
}
fclose ( $fd );
// Replace any combination of carriage return (\r) and new line (\n)
// with a single new line.
$data = preg_replace ( "/[\r\n]+/", "\n", $data );
// Split the data into lines.
$configLines = explode ( "\n", $data );
for ( $n = 0, $cnt = count ( $configLines ); $n < $cnt; $n++ ) {
$buffer = trim ( $configLines[$n], "\r\n " );
if ( preg_match ( '/^#|\/\*/', $buffer ) || // comments
preg_match ( '/^<\?/', $buffer ) || // start PHP code
preg_match ( '/^\?>/', $buffer ) ) // end PHP code
continue;
if ( preg_match ( '/(\S+):\s*(\S+)/', $buffer, $matches ) )
$settings[$matches[1]] = $matches[2];
// echo "settings $matches[1] => $matches[2]<br />";
}
$configLines = $data = '';
// Extract db settings into global vars.
$db_database = $settings['db_database'];
$db_host = $settings['db_host'];
$db_login = $settings['db_login'];
$db_password = $settings['db_password'];
$db_persistent = ( preg_match ( '/(1|yes|true|on)/i',
$settings['db_persistent'] ) ? '1' : '0' );
$db_type = $settings['db_type'];
// If no db settings, then user has likely started install but not yet
// completed. So, send them back to the install script.
if ( empty ( $db_type ) ) {
if ( file_exists ( 'install/index.php' ) ) {
header ( 'Location: install/index.php' );
exit;
} else
die_miserable_death (
translate ( 'Incomplete settings.php file...' ) );
}
// Use 'db_cachedir' if found, otherwise look for 'cachedir'.
if ( ! empty ( $settings['db_cachedir'] ) )
dbi_init_cache ( $settings['db_cachedir'] );
else
if ( ! empty ( $settings['cachedir'] ) )
dbi_init_cache ( $settings['cachedir'] );
if ( ! empty ( $settings['db_debug'] ) &&
preg_match ( '/(1|true|yes|enable|on)/i', $settings['db_debug'] ) )
dbi_set_debug ( true );
foreach ( array ( 'db_type', 'db_host', 'db_login', 'db_password' ) as $s ) {
if ( empty ( $settings[$s] ) )
die_miserable_death ( str_replace ( 'XXX', $s,
translate ( 'Could not find XXX defined in...' ) ) );
}
// Allow special settings of 'none' in some settings[] values.
// This can be used for db servers not using TCP port for connection.
$db_host = ( $db_host == 'none' ? '' : $db_host );
$db_password = ( $db_password == 'none' ? '' : $db_password );
$readonly = preg_match ( '/(1|yes|true|on)/i',
$settings['readonly'] ) ? 'Y' : 'N';
if ( empty ( $settings['mode'] ) )
$settings['mode'] = 'prod';
$run_mode = ( preg_match ( '/(dev)/i', $settings['mode'] ) ? 'dev' : 'prod' );
$phpdbiVerbose = ( $run_mode == 'dev' ) ;
$single_user = preg_match ( '/(1|yes|true|on)/i',
$settings['single_user'] ) ? 'Y' : 'N';
if ( $single_user == 'Y' )
$single_user_login = $settings['single_user_login'];
if ( $single_user == 'Y' && empty ( $single_user_login ) )
die_miserable_death ( str_replace ( 'XXX', 'single_user_login',
translate ( 'You must define XXX in' ) ) );
$use_http_auth = ( preg_match ( '/(1|yes|true|on)/i',
$settings['use_http_auth'] ) ? true : false );
// Type of user authentication.
$user_inc = $settings['user_inc'];
// If sqlite, the db file is in the include directory
if ( $db_type == 'sqlite' )
$db_database = get_full_include_path ( $db_database );
// Check the current installation version.
// Redirect user to install page if it is different from stored value.
// This will prevent running WebCalendar until UPGRADING.html has been
// read and required upgrade actions completed.
$c = @dbi_connect ( $db_host, $db_login, $db_password, $db_database, false );
if ( $c ) {
$rows = dbi_get_cached_rows ( 'SELECT cal_value FROM webcal_config
WHERE cal_setting = \'WEBCAL_PROGRAM_VERSION\'' );
if ( ! $rows ) {
// & does not work here...leave it as &.
header ( 'Location: install/index.php?action=mismatch&version=UNKNOWN' );
exit;
} else {
$row = $rows[0];
if ( empty ( $row ) || $row[0] != $PROGRAM_VERSION ) {
// & does not work here...leave it as &.
header ( 'Location: install/index.php?action=mismatch&version='
. ( empty ( $row ) ? 'UNKNOWN' : $row[0] ) );
exit;
}
}
dbi_close ( $c );
} else { // Must mean we don't have a settings.php file.
// NOTE: if we get a connect error when running send_reminders.php,
// we may want to show that error message here.
// & does not work here...leave it as &.
header ( 'Location: install/index.php?action=mismatch&version=UNKNOWN' );
exit;
}
// We can add extra 'nonuser' calendars such as a holiday, corporate,
// departmental, etc. We need a unique prefix for these calendars
// so we don't get them mixed up with real logins. This prefix should be
// a maximum of 5 characters and should NOT change once set!
$NONUSER_PREFIX = '_NUC_';
if ( $single_user != 'Y' )
$single_user_login = '';
}
?>
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