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@JackNoordhuis
Created March 4, 2018 04:31
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A PHP script for fetching the latest Minecraft: Bedrock Edition releases from the app store.
<?php
$result = json_decode(getURL("https://itunes.apple.com/au/app/minecraft/id479516143?dataOnly=true"), true);
for($i = 0, $count = count($result["pageData"]) - 1; $i < $count; ++$i) {
$info = $result["pageData"]["versionHistory"][$i];
$releaseTime = new \DateTime($info["releaseDate"], new \DateTimeZone("Australia/Sydney"));
printf("Minecraft: PE version %s, released on %s" . PHP_EOL . PHP_EOL, $info["versionString"], $releaseTime->format("l\\, jS \\o\\f F Y"));
}
/**
* GETs an URL using cURL
* NOTE: This is a blocking operation and can take a significant amount of time. It is inadvisable to use this method on the main thread.
*
* @param string $page
* @param int $timeout default 10
* @param array $extraHeaders
* @param string &$err Will be set to the output of curl_error(). Use this to retrieve errors that occured during the operation.
* @param array[] &$headers
* @param int &$httpCode
*
* @return bool|mixed false if an error occurred, mixed data if successful.
*/
function getURL(string $page, int $timeout = 10, array $extraHeaders = [], &$err = null, &$headers = null, &$httpCode = null){
try{
list($ret, $headers, $httpCode) = simpleCurl($page, $timeout, $extraHeaders);
return $ret;
}catch(\RuntimeException $ex){
$err = $ex->getMessage();
return false;
}
}
/**
* POSTs data to an URL
* NOTE: This is a blocking operation and can take a significant amount of time. It is inadvisable to use this method on the main thread. *
* @param string $page
* @param array|string $args
* @param int $timeout
* @param array $extraHeaders
* @param string &$err Will be set to the output of curl_error(). Use this to retrieve errors that occured during the operation.
* @param array[] &$headers
* @param int &$httpCode
*
* @return bool|mixed false if an error occurred, mixed data if successful.
*/
function postURL(string $page, $args, int $timeout = 10, array $extraHeaders = [], &$err = null, &$headers = null, &$httpCode = null){
try{
list($ret, $headers, $httpCode) = simpleCurl($page, $timeout, $extraHeaders, [
CURLOPT_POST => 1,
CURLOPT_POSTFIELDS => $args
]);
return $ret;
}catch(\RuntimeException $ex){
$err = $ex->getMessage();
return false;
}
}
/**
* General cURL shorthand function.
* NOTE: This is a blocking operation and can take a significant amount of time. It is inadvisable to use this method on the main thread.
*
* @param string $page
* @param float|int $timeout The maximum connect timeout and timeout in seconds, correct to ms.
* @param string[] $extraHeaders extra headers to send as a plain string array
* @param array $extraOpts extra CURLOPT_* to set as an [opt => value] map
* @param callable|null $onSuccess function to be called if there is no error. Accepts a resource argument as the cURL handle.
*
* @return array a plain array of three [result body : string, headers : array[], HTTP response code : int]. Headers are grouped by requests with strtolower(header name) as keys and header value as values
*
* @throws \RuntimeException if a cURL error occurs
*/
function simpleCurl(string $page, $timeout = 10, array $extraHeaders = [], array $extraOpts = [], callable $onSuccess = null){
$ch = curl_init($page);
curl_setopt_array($ch, $extraOpts + [
CURLOPT_SSL_VERIFYPEER => false,
CURLOPT_SSL_VERIFYHOST => 2,
CURLOPT_FORBID_REUSE => 1,
CURLOPT_FRESH_CONNECT => 1,
CURLOPT_AUTOREFERER => true,
CURLOPT_FOLLOWLOCATION => true,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_CONNECTTIMEOUT_MS => (int) ($timeout * 1000),
CURLOPT_TIMEOUT_MS => (int) ($timeout * 1000),
CURLOPT_HTTPHEADER => array_merge(["User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:12.0) Gecko/20100101 Firefox/12.0 PHP Script"], $extraHeaders),
CURLOPT_HEADER => true
]);
try{
$raw = curl_exec($ch);
$error = curl_error($ch);
if($error !== ""){
throw new \RuntimeException($error);
}
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
$headerSize = curl_getinfo($ch, CURLINFO_HEADER_SIZE);
$rawHeaders = substr($raw, 0, $headerSize);
$body = substr($raw, $headerSize);
$headers = [];
foreach(explode("\r\n\r\n", $rawHeaders) as $rawHeaderGroup){
$headerGroup = [];
foreach(explode("\r\n", $rawHeaderGroup) as $line){
$nameValue = explode(":", $line, 2);
if(isset($nameValue[1])){
$headerGroup[trim(strtolower($nameValue[0]))] = trim($nameValue[1]);
}
}
$headers[] = $headerGroup;
}
if($onSuccess !== null){
$onSuccess($ch);
}
return [$body, $headers, $httpCode];
}finally{
curl_close($ch);
}
}
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