.
// minimal set of utility functions, usable outside a BOINC project.
// Doesn't pull in translation.inc etc.
$generating_xml = false;
function project_dir() {
$d = dirname(__FILE__);
return "$d/../..";
}
function web_stopped() {
$d = project_dir();
return file_exists("$d/stop_web");
}
function sched_stopped() {
$d = project_dir();
return file_exists("$d/stop_sched");
}
function show_page($x, $y) {
echo "
$x
$x
$y
";
}
function xml_error($num, $msg=null, $file=null, $line=null) {
global $xml_outer_tag;
if (!$msg) {
switch($num) {
case -112: $msg = "Invalid XML"; break;
case -136: $msg = "Not found"; break;
case -137: $msg = "Name or email address is not unique"; break;
case -138: $msg = "Can't access database"; break;
case -183: $msg = "Project is temporarily offline"; break;
case -205: $msg = "Email address has invalid syntax"; break;
case -206: $msg = "Invalid password"; break;
case -207: $msg = "Email address is not unique"; break;
case -208: $msg = "Account creation is disabled"; break;
case -209: $msg = "Invalid invitation code"; break;
case -210: $msg = "Invalid request method"; break;
default: $msg = "Unknown error"; break;
}
}
echo "
$num
$msg
";
if ($file) {
echo " $file\n";
}
if ($line) {
echo " $line\n";
}
echo "\n";
if (isset($xml_outer_tag) && $xml_outer_tag != "") {
echo "\n";
}
exit();
}
$g_config = null;
function get_config() {
global $g_config;
if ($g_config == null) {
$d = project_dir();
$g_config = file_get_contents("$d/config.xml");
}
return $g_config;
}
// Look for an element in a line of XML text
// If it's a single-tag element, and it's present, just return the tag
//
function parse_element($xml, $tag) {
$element = null;
$closetag = "")) return $tag;
$y = substr($x, strlen($tag));
$n = strpos($y, $closetag);
if ($n) {
$element = substr($y, 0, $n);
}
}
return trim($element);
}
function parse_next_element($xml, $tag, &$cursor) {
$element = null;
$closetag = "")) return $tag;
$y = substr($x, strlen($tag));
$n = strpos($y, $closetag);
if ($n) {
$element = substr($y, 0, $n);
}
$cursor = (strlen($xml) - strlen($x)) + strlen($tag) + strlen($closetag) + strlen($element);
}
return trim($element);
}
// return true if XML contains either or 1
//
function parse_bool($xml, $tag) {
$x = "<$tag/>";
if (strstr($xml, $x)) return true;
$x = "<$tag>";
$y = (int)parse_element($xml, $x);
if ($y != 0) return true;
return false;
}
// look for a particular element in the config file
//
function parse_config($config, $tag) {
$element = parse_element($config, $tag);
return $element;
}
function drand() {
return ((double)rand())/getrandmax();
}
// kludge
//
function is_gpu($plan_class) {
if (strstr($plan_class, "ati")) return true;
if (strstr($plan_class, "cuda")) return true;
if (strstr($plan_class, "nvidia")) return true;
if (strstr($plan_class, "intel_gpu")) return true;
return false;
}
// the same as file_get_contents() but uses curl
//
function url_get_contents($url) {
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_HEADER, false);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_MAXREDIRS, 5);
$content = curl_exec($ch);
curl_close($ch);
return $content;
}
// Stuff related to password hashing.
// Originally we hashed with MD5.
// But MD5 is so fast that brute-force cracking would be easy
// for hackers who break into a project's server.
// So now we additionally hash with bcrypt,
// if available (PHP >= 5.5) via PHP's password_hash() function.
//
// So there are two levels of hash:
//
// hash_0: md5(password.email_addr)
// hash_1: password_hash(hash_0, PASSWORD_DEFAULT)
//
// hash_0 is what gets sent over the network,
// from the client and account manager RPCs.
//
// hash_1 is what gets stored in the DB
// except that hash_0 is stored in the DB if
// - the project has pre-5.5 PHP, or
// - the project hasn't run the update script (see below)
//
// It would be slightly more secure if hash_1 was used on the network.
// But that would require a client and account manager change,
// and it would require them to know whether the server has password_hash().
//
// We supply a script update_password_hash.php.
// This changes the user table from hash_0 to hash_1.
// Projects can run it whenever they want;
// those using old PHP can wait until they upgrade PHP.
//
// To simplify the transition:
// - When we're authorizing a user,
?>