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friendica
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Add check_blocklist to z_fetch_url and post_url 

- Standard compliance
pull/3392/head
Hypolite Petovan 3 years ago
parent
c7e1a8e871
commit
8d469c155a
1 changed files with 120 additions and 87 deletions
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  1. +120
    -87
      include/network.php

+ 120
- 87
include/network.php View File

@ -62,23 +62,27 @@ function fetch_url($url,$binary = false, &$redirects = 0, $timeout = 0, $accept_
* string 'header' => HTTP headers
* string 'body' => fetched content
*/
function z_fetch_url($url,$binary = false, &$redirects = 0, $opts=array()) {
$ret = array('return_code' => 0, 'success' => false, 'header' => "", 'body' => "");
function z_fetch_url($url, $binary = false, &$redirects = 0, $opts = array()) {
$ret = array('return_code' => 0, 'success' => false, 'header' => '', 'body' => '');
$stamp1 = microtime(true);
$a = get_app();
if (! check_domain_blocklist($url)) {
logger('z_fetch_url: domain of ' . $url . ' is blocked', LOGGER_DATA);
return $ret;
}
$ch = @curl_init($url);
if(($redirects > 8) || (! $ch)) {
if (($redirects > 8) || (!$ch)) {
return $ret;
}
@curl_setopt($ch, CURLOPT_HEADER, true);
if(x($opts,"cookiejar")) {
if (x($opts, "cookiejar")) {
curl_setopt($ch, CURLOPT_COOKIEJAR, $opts["cookiejar"]);
curl_setopt($ch, CURLOPT_COOKIEFILE, $opts["cookiejar"]);
}
@ -87,52 +91,61 @@ function z_fetch_url($url,$binary = false, &$redirects = 0, $opts=array()) {
// @curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
// @curl_setopt($ch, CURLOPT_MAXREDIRS, 5);
if (x($opts,'accept_content')){
curl_setopt($ch,CURLOPT_HTTPHEADER, array (
"Accept: " . $opts['accept_content']
if (x($opts, 'accept_content')) {
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
'Accept: ' . $opts['accept_content']
));
}
@curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
@curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
@curl_setopt($ch, CURLOPT_USERAGENT, $a->get_useragent());
$range = intval(Config::get('system', 'curl_range_bytes', 0));
if ($range > 0) {
@curl_setopt($ch, CURLOPT_RANGE, '0-'.$range);
@curl_setopt($ch, CURLOPT_RANGE, '0-' . $range);
}
if(x($opts,'headers')){
if (x($opts, 'headers')) {
@curl_setopt($ch, CURLOPT_HTTPHEADER, $opts['headers']);
}
if(x($opts,'nobody')){
if (x($opts, 'nobody')) {
@curl_setopt($ch, CURLOPT_NOBODY, $opts['nobody']);
}
if(x($opts,'timeout')){
if (x($opts, 'timeout')) {
@curl_setopt($ch, CURLOPT_TIMEOUT, $opts['timeout']);
} else {
$curl_time = intval(get_config('system','curl_timeout'));
$curl_time = intval(get_config('system', 'curl_timeout'));
@curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
}
// by default we will allow self-signed certs
// but you can override this
$check_cert = get_config('system','verifyssl');
$check_cert = get_config('system', 'verifyssl');
@curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
if ($check_cert) {
@curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
}
$prx = get_config('system','proxy');
if(strlen($prx)) {
$proxy = get_config('system', 'proxy');
if (strlen($proxy)) {
@curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
@curl_setopt($ch, CURLOPT_PROXY, $prx);
$prxusr = @get_config('system','proxyuser');
if(strlen($prxusr))
@curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
@curl_setopt($ch, CURLOPT_PROXY, $proxy);
$proxyuser = @get_config('system', 'proxyuser');
if (strlen($proxyuser)) {
@curl_setopt($ch, CURLOPT_PROXYUSERPWD, $proxyuser);
}
}
if ($binary) {
@curl_setopt($ch, CURLOPT_BINARYTRANSFER, 1);
}
if($binary)
@curl_setopt($ch, CURLOPT_BINARYTRANSFER,1);
$a->set_curl_code(0);
@ -140,8 +153,9 @@ function z_fetch_url($url,$binary = false, &$redirects = 0, $opts=array()) {
// if it throws any errors.
$s = @curl_exec($ch);
if (curl_errno($ch) !== CURLE_OK) {
logger('fetch_url error fetching '.$url.': '.curl_error($ch), LOGGER_NORMAL);
logger('fetch_url error fetching ' . $url . ': ' . curl_error($ch), LOGGER_NORMAL);
}
$ret['errno'] = curl_errno($ch);
@ -150,136 +164,151 @@ function z_fetch_url($url,$binary = false, &$redirects = 0, $opts=array()) {
$curl_info = @curl_getinfo($ch);
$http_code = $curl_info['http_code'];
logger('fetch_url '.$url.': '.$http_code." ".$s, LOGGER_DATA);
logger('fetch_url ' . $url . ': ' . $http_code . " " . $s, LOGGER_DATA);
$header = '';
// Pull out multiple headers, e.g. proxy and continuation headers
// allow for HTTP/2.x without fixing code
while(preg_match('/^HTTP\/[1-2].+? [1-5][0-9][0-9]/',$base)) {
$chunk = substr($base,0,strpos($base,"\r\n\r\n")+4);
while (preg_match('/^HTTP\/[1-2].+? [1-5][0-9][0-9]/', $base)) {
$chunk = substr($base, 0, strpos($base, "\r\n\r\n") + 4);
$header .= $chunk;
$base = substr($base,strlen($chunk));
$base = substr($base, strlen($chunk));
}
$a->set_curl_code($http_code);
$a->set_curl_content_type($curl_info['content_type']);
$a->set_curl_headers($header);
if($http_code == 301 || $http_code == 302 || $http_code == 303 || $http_code == 307) {
$new_location_info = @parse_url($curl_info["redirect_url"]);
$old_location_info = @parse_url($curl_info["url"]);
if ($http_code == 301 || $http_code == 302 || $http_code == 303 || $http_code == 307) {
$new_location_info = @parse_url($curl_info['redirect_url']);
$old_location_info = @parse_url($curl_info['url']);
$newurl = $curl_info["redirect_url"];
$newurl = $curl_info['redirect_url'];
if (($new_location_info["path"] == "") AND ($new_location_info["host"] != ""))
$newurl = $new_location_info["scheme"]."://".$new_location_info["host"].$old_location_info["path"];
if (($new_location_info['path'] == '') AND ( $new_location_info['host'] != '')) {
$newurl = $new_location_info['scheme'] . '://' . $new_location_info['host'] . $old_location_info['path'];
}
$matches = array();
if (preg_match('/(Location:|URI:)(.*?)\n/i', $header, $matches)) {
$newurl = trim(array_pop($matches));
}
if(strpos($newurl,'/') === 0)
$newurl = $old_location_info["scheme"]."://".$old_location_info["host"].$newurl;
if (strpos($newurl, '/') === 0) {
$newurl = $old_location_info['scheme'] . '://' . $old_location_info['host'] . $newurl;
}
if (filter_var($newurl, FILTER_VALIDATE_URL)) {
$redirects++;
@curl_close($ch);
return z_fetch_url($newurl,$binary, $redirects, $opts);
return z_fetch_url($newurl, $binary, $redirects, $opts);
}
}
$a->set_curl_code($http_code);
$a->set_curl_content_type($curl_info['content_type']);
$body = substr($s,strlen($header));
$body = substr($s, strlen($header));
$rc = intval($http_code);
$ret['return_code'] = $rc;
$ret['success'] = (($rc >= 200 && $rc <= 299) ? true : false);
$ret['redirect_url'] = $url;
if(! $ret['success']) {
if (!$ret['success']) {
$ret['error'] = curl_error($ch);
$ret['debug'] = $curl_info;
logger('z_fetch_url: error: ' . $url . ': ' . $ret['error'], LOGGER_DEBUG);
logger('z_fetch_url: debug: ' . print_r($curl_info,true), LOGGER_DATA);
logger('z_fetch_url: debug: ' . print_r($curl_info, true), LOGGER_DATA);
}
$ret['body'] = substr($s,strlen($header));
$ret['body'] = substr($s, strlen($header));
$ret['header'] = $header;
if(x($opts,'debug')) {
if (x($opts, 'debug')) {
$ret['debug'] = $curl_info;
}
@curl_close($ch);
$a->save_timestamp($stamp1, "network");
$a->save_timestamp($stamp1, 'network');
return($ret);
}
// post request to $url. $params is an array of post variables.
/**
* @brief Post request to $url
* @brief Send POST request to $url
*
* @param string $url URL to post
* @param mixed $params
* @param mixed $params array of POST variables
* @param string $headers HTTP headers
* @param integer $redirects Recursion counter for internal use - default = 0
* @param integer $timeout The timeout in seconds, default system config value or 60 seconds
*
* @return string The content
*/
function post_url($url,$params, $headers = null, &$redirects = 0, $timeout = 0) {
function post_url($url, $params, $headers = null, &$redirects = 0, $timeout = 0) {
$stamp1 = microtime(true);
if (!check_domain_blocklist($url)) {
logger('post_url: domain of ' . $url . ' is blocked', LOGGER_DATA);
return false;
}
$a = get_app();
$ch = curl_init($url);
if(($redirects > 8) || (! $ch))
if (($redirects > 8) || (!$ch)) {
return false;
}
logger("post_url: start ".$url, LOGGER_DATA);
logger('post_url: start ' . $url, LOGGER_DATA);
curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
curl_setopt($ch, CURLOPT_POST,1);
curl_setopt($ch, CURLOPT_POSTFIELDS,$params);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $params);
curl_setopt($ch, CURLOPT_USERAGENT, $a->get_useragent());
if(intval($timeout)) {
if (intval($timeout)) {
curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
}
else {
$curl_time = intval(get_config('system','curl_timeout'));
} else {
$curl_time = intval(get_config('system', 'curl_timeout'));
curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
}
if(defined('LIGHTTPD')) {
if(!is_array($headers)) {
if (defined('LIGHTTPD')) {
if (!is_array($headers)) {
$headers = array('Expect:');
} else {
if(!in_array('Expect:', $headers)) {
if (!in_array('Expect:', $headers)) {
array_push($headers, 'Expect:');
}
}
}
if($headers)
if ($headers) {
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
}
$check_cert = get_config('system','verifyssl');
$check_cert = get_config('system', 'verifyssl');
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
if ($check_cert) {
@curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
}
$prx = get_config('system','proxy');
if(strlen($prx)) {
$proxy = get_config('system', 'proxy');
if (strlen($proxy)) {
curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
curl_setopt($ch, CURLOPT_PROXY, $prx);
$prxusr = get_config('system','proxyuser');
if(strlen($prxusr))
curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
curl_setopt($ch, CURLOPT_PROXY, $proxy);
$proxyuser = get_config('system', 'proxyuser');
if (strlen($proxyuser)) {
curl_setopt($ch, CURLOPT_PROXYUSERPWD, $proxyuser);
}
}
$a->set_curl_code(0);
@ -293,44 +322,48 @@ function post_url($url,$params, $headers = null, &$redirects = 0, $timeout = 0)
$curl_info = curl_getinfo($ch);
$http_code = $curl_info['http_code'];
logger("post_url: result ".$http_code." - ".$url, LOGGER_DATA);
logger('post_url: result ' . $http_code . ' - ' . $url, LOGGER_DATA);
$header = '';
// Pull out multiple headers, e.g. proxy and continuation headers
// allow for HTTP/2.x without fixing code
while(preg_match('/^HTTP\/[1-2].+? [1-5][0-9][0-9]/',$base)) {
$chunk = substr($base,0,strpos($base,"\r\n\r\n")+4);
while (preg_match('/^HTTP\/[1-2].+? [1-5][0-9][0-9]/', $base)) {
$chunk = substr($base, 0, strpos($base, "\r\n\r\n") + 4);
$header .= $chunk;
$base = substr($base,strlen($chunk));
$base = substr($base, strlen($chunk));
}
if($http_code == 301 || $http_code == 302 || $http_code == 303 || $http_code == 307) {
if ($http_code == 301 || $http_code == 302 || $http_code == 303 || $http_code == 307) {
$matches = array();
preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
$newurl = trim(array_pop($matches));
if(strpos($newurl,'/') === 0)
$newurl = $old_location_info["scheme"] . "://" . $old_location_info["host"] . $newurl;
if (strpos($newurl, '/') === 0) {
$newurl = $old_location_info['scheme'] . '://' . $old_location_info['host'] . $newurl;
}
if (filter_var($newurl, FILTER_VALIDATE_URL)) {
$redirects++;
logger("post_url: redirect ".$url." to ".$newurl);
return post_url($newurl,$params, $headers, $redirects, $timeout);
//return fetch_url($newurl,false,$redirects,$timeout);
logger('post_url: redirect ' . $url . ' to ' . $newurl);
return post_url($newurl, $params, $headers, $redirects, $timeout);
}
}
$a->set_curl_code($http_code);
$body = substr($s,strlen($header));
$body = substr($s, strlen($header));
$a->set_curl_headers($header);
curl_close($ch);
$a->save_timestamp($stamp1, "network");
$a->save_timestamp($stamp1, 'network');
logger("post_url: end ".$url, LOGGER_DATA);
logger('post_url: end ' . $url, LOGGER_DATA);
return($body);
return $body;
}
// Generic XML return


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