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<?
include_once("aur_po.inc");
# Define global variables
#
$LOGIN_TIMEOUT = 10; # number of idle seconds before timeout
$SUPPORTED_LANGS = array( # what languages we have translations for
"en" => 1, # English
"es" => 1, # Español
"de" => 1, # Deutsch
"fr" => 1, # Français
);
# debugging variables
#
$QBUG = 1; # toggle query logging to /tmp/aurq.log
$DBUG = 1; # use dbug($msg) to log to /tmp/aurd.log
# see if the visitor is already logged in
#
function check_sid() {
global $_COOKIE;
global $LOGIN_TIMEOUT;
if (isset($_COOKIE["AURSID"])) {
$failed = 0;
# the visitor is logged in, try and update the session
#
$dbh = db_connect();
$q = "SELECT LastUpdateTS, UNIX_TIMESTAMP() FROM Sessions ";
$q.= "WHERE SessionID = '" . mysql_escape_string($_COOKIE["AURSID"]) . "'";
$result = db_query($q, $dbh);
if (!$result) {
# Invalid SessionID - hacker alert!
#
$failed = 1;
} else {
$row = mysql_fetch_row($result);
if ($row[0] + $LOGIN_TIMEOUT <= $row[1]) {
dbug("login timeout reached");
$failed = 2;
}
}
if ($failed == 1) {
# clear out the hacker's cookie, and send them to a naughty page
#
setcookie("AURSID", "", time() - (60*60*24*30), "/");
header("Location: /hacker.php");
} elseif ($failed == 2) {
# visitor's session id either doesn't exist, or the timeout
# was reached and they must login again, send them back to
# the main page where they can log in again.
#
$q = "DELETE FROM Sessions WHERE SessionID = '";
$q.= mysql_escape_string($_COOKIE["AURSID"]) . "'";
db_query($q, $dbh);
setcookie("AURSID", "", time() - (60*60*24*30), "/");
header("Location: /timeout.php");
} else {
# still logged in and haven't reached the timeout, go ahead
# and update the idle timestamp
#
$q = "UPDATE Sessions SET LastUpdateTS = UNIX_TIMESTAMP() ";
$q.= "WHERE SessionID = '".mysql_escape_string($_COOKIE["AURSID"])."'";
db_query($q, $dbh);
}
}
return;
}
# a new seed value for mt_srand()
#
function make_seed() {
list($usec, $sec) = explode(' ', microtime());
return (float) $sec + ((float) $usec * 10000);
}
# generate a (hopefully) unique session id
#
function new_sid() {
mt_srand(make_seed());
$ts = time();
$pid = getmypid();
$rand_num = mt_rand();
mt_srand(make_seed());
$rand_str = substr(md5(mt_rand()),2, 20);
$id = $rand_str . strtolower(md5($ts.$pid)) . $rand_num;
return strtoupper(md5($id));
}
# obtain the username if given their current SID
#
function username_from_sid($sid="") {
if (!$sid) {
return "";
}
$dbh = db_connect();
$q = "SELECT Email ";
$q.= "FROM Users, Sessions ";
$q.= "WHERE Users.ID = Sessions.UsersID ";
$q.= "AND SessionID = '" . mysql_escape_string($sid) . "'";
$result = db_query($q, $dbh);
if (!$result) {
return "";
}
$row = mysql_fetch_row($result);
return $row[0];
}
# connect to the database
#
function db_connect() {
# NOTE: modify these variables if your MySQL setup is different
#
$AUR_db_host = "localhost:/tmp/mysql.sock";
$AUR_db_name = "AUR";
$AUR_db_user = "aur"; # XXX use something better when deploying
$AUR_db_pass = "aur"; # XXX use something better when deploying
$handle = mysql_pconnect($AUR_db_host, $AUR_db_user, $AUR_db_pass);
if (!$handle) {
die("Error connecting to AUR database: " . mysql_error());
}
mysql_select_db($AUR_db_name, $handle) or
die("Error selecting AUR database: " . mysql_error());
return $handle;
}
# wrapper function around db_query in case we want to put
# query logging/debuggin in.
#
function db_query($query="", $db_handle="") {
global $QBUG;
if (!$query) {
return FALSE;
}
if (!$db_handle) {
$db_handle = db_connect();
}
if ($QBUG) {
$fp = fopen("/tmp/aurq.log", "a");
fwrite($fp, $query . "\n");
fclose($fp);
}
$result = mysql_query($query, $db_handle);
return $result;
}
# set up the visitor's language
#
function set_lang() {
global $_REQUEST;
global $_COOKIE;
global $LANG;
global $SUPPORTED_LANGS;
$update_cookie = 0;
if (isset($_REQUEST['setlang'])) {
# visitor is requesting a language change
#
$LANG = $_REQUEST['setlang'];
$update_cookie = 1;
} elseif (isset($_COOKIE['AURLANG'])) {
# If a cookie is set, use that
#
$LANG = $_COOKIE['AURLANG'];
} # TODO query the database if the user is logged in
if (!$LANG || !array_key_exists($LANG, $SUPPORTED_LANGS)) {
$LANG = "en"; # default to English
}
if ($update_cookie) {
# TODO do we need to set the domain too? I seem to remember some
# security concerns about not using domains - but it's not like
# we really care if another site can see what language our visitor
# was using....
#
setcookie("AURLANG", $LANG, 0, "/");
}
return;
}
# common header
#
function html_header() {
global $_COOKIE;
print "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
print "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">\n";
print "<html xmlns=\"http://www.w3.org/1999/xhtml\" xml:lang=\"en\" lang=\"en\">";
print "<head>\n";
print "<title>AUR</title>\n";
print "<link rel='stylesheet' type='text/css' href='/css/fonts.css'/>\n";
print "<link rel='stylesheet' type='text/css' href='/css/containers.css'/>\n";
print "<link rel='shortcut icon' href='/images/favicon.ico'/>\n";
print "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\" />\n";
print "</head>\n";
print "<body bgcolor='white'>\n";
print "<table cellspacing='0' ";
print "style='background-color: #000; width: 100%;'>\n";
print " <tr>\n";
print " <td class='preHeader'><span class='preHeader'>";
print __("%s: An ArchLinux project", array("AUR"));
print "</span></td>\n";
print " </tr>\n";
print " <tr>\n";
print " <td class='headerFill'>\n";
print " <table width='100%'>\n";
print " <tr>\n";
print " <td class='headerDisplay'><a href='/index.php'>";
# XXX Can I scale a PNG like this?
#
print "<img src='/images/AUR-logo-80.png' width='85' height='45' border='0'></a></td>\n";
print " <td class='headerDisplay' valign='top' align='right'>";
print "<span class='preHeader'>ArchLinux User-community Repository</span><br/>";
# XXX CSS help - a:link, a:visited, etc are defined, but I don't want to
# use the defaults. Is this the way to override them?
#
print "<a href='/index.php?setlang=en'><span class='sideBarSmallHeader'>English</span></a> ";
print "<a href='/index.php?setlang=es'><span class='sideBarSmallHeader'>Español</span></a> ";
print "<a href='/index.php?setlang=de'><span class='sideBarSmallHeader'>Deutsch</span></a> ";
print "<a href='/index.php?setlang=fr'><span class='sideBarSmallHeader'>Français</span></a>";
print " </td>\n";
print " </tr>\n";
print " </table>\n";
print " </td>\n";
print " </tr>\n";
# Menu items
#
print " <tr>\n";
print " <td class='mainLinks' align='center'>";
print " <span class='f2'><span class='black'>.:</span>";
print " <a href='/index.php'>".__("Home")."</a> ";
print " <span class='black'> - </span> ";
print " <a href='/account.php'>".__("Accounts")."</a> ";
print " <span class='black'> - </span> ";
print " <a href='/pkgsearch.php'>".__("Packages")."</a> ";
if (isset($_COOKIE["AURSID"])) {
# Only display these items if the visitor is logged in. This should
# be a safe check because check_sid() has been called prior to
# html_header().
#
print " <span class='black'> - </span> ";
print " <a href='/pkgvote.php'>".__("Vote")."</a> ";
print " <span class='black'> - </span> ";
print " <a href='/pkgmgmnt.php'>".__("Manage")."</a> ";
print " <span class='black'> - </span> ";
print " <a href='/pkgsubmit.php'>".__("Submit")."</a> ";
print " <span class='black'> - </span> ";
print " <a href='/logout.php'>".__("Logout")."</a> ";
}
print " <span class='black'>:.</span></span>";
print " </td>";
print " </tr>";
print " <tr>\n";
print " <td class='contentDisplay'>\n";
print "<!-- Start of main content -->\n\n";
return;
}
# common footer
#
function html_footer($ver="") {
print "\n\n<!-- End of main content -->";
print " </td>\n";
print " </tr>\n";
print "</table>\n";
print "<p>\n";
if ($ver) {
print "<table border='0' cellpadding='0' cellspacing='0' width='97%'>\n";
print "<tr><td align='right'><span class='fix'>".$ver."</span></td></tr>\n";
print "</table>\n";
}
print "</p>\n";
print "</body>\n</html>";
return;
}
# debug logging
#
function dbug($msg) {
$fp = fopen("/tmp/aurd.log", "a");
fwrite($fp, $msg . "\n");
fclose($fp);
return;
}
# vim: ts=2 sw=2 noet ft=php
?>
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