<?php

function httpjson($endpoint,$timeout=null,$method=null,$postdata=null,$accept=null,$token=null,$okcodes=null) {
	if (is_null($timeout)) $timeout=5;
	if (is_null($method)) $method='GET';
	if (is_null($accept)) $accept='application/json';
	if (is_null($okcodes)) $okcodes=[200];
	$context=[
		'http'=>[
			'timeout'=>$timeout,
			'method'=>$method,
			'user_agent'=>'Mozilla/5.0 (X11; Linux x86_64; rv:121.0) Gecko/20100101 Firefox/121.0',
			'header'=>"Accept: {$accept}\r\n",
			'ignore_errors'=>true
		]
	];
	if (!is_null($token)) $context['http']['header'].="Authorization: Bearer {$token}\r\n";
	if (!is_null($postdata)) {
		$context['http']['header'].="Content-type: application/x-www-form-urlencoded\r\n";
		$context['http']['content']=http_build_query($postdata);
	}
	$context=stream_context_create($context);
	$headers=[];
	$errors=[];
	$ret=['ok'=>false,'headers'=>[],'content'=>[],'errors'=>null];
	$http_response_header=null;
	$res=@file_get_contents($endpoint,false,$context);
	if ($res===false) {
		$errors[]="could not connect";
	} else {
		if (is_array($http_response_header)) {
			$httprc=null;
			$li=count($http_response_header)-1;
			for ($i=$li; $i>=0; $i--) {
				array_unshift($headers,$http_response_header[$i]);
				if (preg_match('#HTTP/\S+\s+(\d+)#',$http_response_header[$i],$matches)===1) {
					$httprc=$matches[1]+0;
					break;
				}
			}
			if (is_null($httprc))
				$errors[]="got no HTTP response status code";
			elseif (!in_array($httprc,$okcodes))
				$errors[]="got «{$httprc}» HTTP response status code";
		} else {
			$errors[]="«got no headers";
		}
		$res=@json_decode($res,true);
		if ($res===false) {
			$errors[]="got no valid JSON";
		} else {
			if (count($errors)>0 && isset($res['error']))
				$errors[]=$res['error'];
			$ret['content']=$res;
		}
	}
	if (count($errors)==0)
		$ret['ok']=true;
	$errors=implode('; ',$errors);
	$ret['headers']=$headers;
	$ret['errors']=$errors;
	return $ret;
}

?>