Curl PHP

curl.php

function curl($link, $cookie = 0, $post = 0, $show_header = true, $auth = 0, $auth_basic = true, $json = false, $referer = 0, $opts = 0) {
	global $pauth;
	if (!extension_loaded('curl') || !function_exists('curl_init') || !function_exists('curl_exec')) html_error('cURL isn\'t enabled or cURL\'s functions are disabled');
	$arr = explode("\r\n", $referer);
	$header = array();
	if (count($arr) > 1) {
		$referer = $arr[0];
		unset($arr[0]);
		$header = array_filter(array_map('trim', $arr));
	}
	if (is_array($cookie)) {
		if (count($cookie) > 0) $cookie = CookiesToStr($cookie);
		else $cookie = false;
	} else {
		$cookie = $cookie != false ? trim($cookie) : false;
	}
	$opt = array(
			CURLOPT_SSL_VERIFYPEER => 0,
			CURLOPT_SSL_VERIFYHOST => 0, CURLOPT_RETURNTRANSFER => 1,
			CURLOPT_FOLLOWLOCATION => 0, CURLOPT_FAILONERROR => 0,
			CURLOPT_FORBID_REUSE => 1, CURLOPT_FRESH_CONNECT => 1,
			CURLOPT_USERAGENT => "Opera/9.80 (Windows NT 6.1; U; en-US) Presto/2.10.229 Version/11.61",
		);
	if ($show_header) {
		$opt[CURLOPT_HEADER] = 1;
	}
	else {
		$opt[CURLOPT_HEADER] = 0;
	}
	if ($referer != false) $opt[CURLOPT_REFERER] = $referer;
	if ($cookie !== false) $opt[CURLOPT_COOKIE] = $cookie;

	if ($auth) {
		if($auth_basic) {
			$opt[CURLOPT_HTTPAUTH] = CURLAUTH_BASIC;
			$opt[CURLOPT_USERPWD] = base64_decode($auth);
		}
		else {
			array_push($header, "Authorization: Bearer $auth");

		}

	}

	if ($json) {
		array_push($header, "Content-Type: application/json");
	}

	// Send more headers...
	$headers = array("Accept-Language: en-us;q=0.7,en;q=0.3", "Accept-Charset: utf-8,windows-1251;q=0.7,*;q=0.7", "Pragma: no-cache", "Cache-Control: no-cache", "Connection: Close");


	if (count($header) > 0) $headers = array_merge($headers, $header);
	$opt[CURLOPT_HTTPHEADER] = $headers;

	if ($post != '0') {
		$opt[CURLOPT_POST] = 1;
		$opt[CURLOPT_POSTFIELDS] = is_array($post) ? formpostdata($post) : $post;
	}
	if (isset($_GET["useproxy"]) && !empty($_GET["proxy"])) {
		$opt[CURLOPT_HTTPPROXYTUNNEL] = false;
		$opt[CURLOPT_PROXY] = $_GET["proxy"];
		if ($pauth) $opt[CURLOPT_PROXYUSERPWD] = base64_decode($pauth);
	}
	$opt[CURLOPT_CONNECTTIMEOUT] = $opt[CURLOPT_TIMEOUT] = 120;
	if (is_array($opts) && count($opts) > 0) foreach ($opts as $O => $V) $opt[$O] = $V;
	$link = str_replace(array(" ", "\r", "\n"), array(" "), $link);
	$ch = curl_init($link);

	foreach ($opt as $O => $V) { // Using this instead of 'curl_setopt_array'
		curl_setopt($ch, $O, $V);
	}
	$page = curl_exec($ch);
	$info = curl_getinfo($ch);
	$errz = curl_errno($ch);
	$errz2 = curl_error($ch);
	curl_close($ch);

	if (!empty($opt[CURLOPT_PROXY])) $page = preg_replace("@^(HTTP/1\.[0-1] \d+ [^\r|\n]+)\r\n\r\n(HTTP/1\.[0-1] \d+ [^\r|\n]+)@i", "$2\r\ncURL: $1", $page, 1); // The "100 Continue" or the proxy response header can break some functions in plugins, let move and rename it...
	if ($errz != 0) html_error("[cURL:$errz] $errz2");

	return $page;
}

//HTML Error
function html_error($msg) {
	echo "<pre>$msg</pre>"; exit();
}

//PRE
function pre($var,$not_exit = 1) {
	echo "<pre>\n" . htmlspecialchars(print_r($var, true)) . "\n</pre>\n";
	if(!$not_exit) {
		exit();
	}
}

//post array to data
function formpostdata($post=array()) {
	$postdata = "";
	foreach ($post as $k => $v) {
		$postdata .= "$k=$v&";
	}
	// Remove the last '&'
	$postdata = substr($postdata, 0, - 1);
	return $postdata;
}