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latest.php
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latest.php
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<?php
require_once 'config.php';
header('Content-Type: application/json');
function __autoload($className)
{
$file = str_replace('\\', DIRECTORY_SEPARATOR, $className);
require_once $file . '.php';
}
function add_component($component, $isDependency=false)
{
global $platform, $channel;
global $in_componentsObj, $out_componentsObj;
if (isset($out_componentsObj[$component])) {
return;
}
if (isset($in_componentsObj[$component])) {
$in_componentObj = $in_componentsObj[$component];
} elseif ($isDependency) {
$in_componentObj = Array();
} else {
return;
}
if (isset($in_componentObj['platform'])
&& !in_array($platform, $in_componentObj['platform'])
&& !in_array('all', $in_componentObj['platform'])) {
return;
}
$out_version = null;
switch ($channel) {
case 'alpha':
if (isset($in_componentObj['alpha'])) {
$out_version = new Semver($in_componentObj['alpha']);
$out_channel = 'alpha';
}
case 'beta':
if (isset($in_componentObj['beta'])) {
$beta = new Semver($in_componentObj['beta']);
if (!$out_version || Semver::greaterThan($beta, $out_version)) {
$out_version = $beta;
$out_channel = 'beta';
}
}
case 'release':
default:
if (isset($in_componentObj['release'])) {
$release = new Semver($in_componentObj['release']);
} else {
$release = new Semver("1.0.0");
}
if (!$out_version || Semver::greaterThan($release, $out_version)) {
$out_version = $release;
$out_channel = 'release';
}
}
if (!$out_version) {
return;
}
if (isset($in_componentObj['dependencies'])) {
foreach ($in_componentObj['dependencies'] as $dependency) {
add_component($dependency, true);
}
}
$out_componentsObj[$component] = (string)$out_version;
}
if (isset($_GET['platform'])) {
$platform = $_GET['platform'];
} else {
$platform = 'all';
}
if (isset($_GET['channel'])) {
$channel = $_GET['channel'];
} else {
$channel = 'release';
}
if (isset($_GET['components'])) {
$components = explode(',', $_GET['components']);
} else {
$components = Array();
}
$json = file_get_contents($componentsJSON);
$in_componentsObj = json_decode($json, true);
$out_componentsObj = new ArrayObject();
foreach ($components as $component) {
add_component($component);
}
$json_options = JSON_UNESCAPED_SLASHES;
if (isset($_GET['pretty'])) {
$json_options |= JSON_PRETTY_PRINT;
}
print json_encode($out_componentsObj, $json_options);