mirror of
https://github.com/pixelfed/pixelfed.git
synced 2024-12-22 13:03:16 +00:00
Update AP helpers
This commit is contained in:
Daniel Supernault
parent
9847fbd898
commit
8fea821504
2 changed files with 193 additions and 160 deletions
|
|
@ -25,6 +25,8 @@ use Cache;
|
|||
use Carbon\Carbon;
|
||||
use Illuminate\Support\Str;
|
||||
use Illuminate\Validation\Rule;
|
||||
use League\Uri\Exceptions\UriException;
|
||||
use League\Uri\Uri;
|
||||
use Purify;
|
||||
use Validator;
|
||||
|
||||
|
|
@ -153,61 +155,74 @@ class Helpers
|
|||
return in_array($url, $audience['to']) || in_array($url, $audience['cc']);
|
||||
}
|
||||
|
||||
public static function validateUrl($url)
|
||||
public static function validateUrl($url = null, $disableDNSCheck = false)
|
||||
{
|
||||
if (is_array($url)) {
|
||||
if (is_array($url) && ! empty($url)) {
|
||||
$url = $url[0];
|
||||
}
|
||||
if (! $url || strlen($url) === 0) {
|
||||
return false;
|
||||
}
|
||||
try {
|
||||
$uri = Uri::new($url);
|
||||
|
||||
$hash = hash('sha256', $url);
|
||||
$key = "helpers:url:valid:sha256-{$hash}";
|
||||
if (! $uri) {
|
||||
return false;
|
||||
}
|
||||
|
||||
if ($uri->getScheme() !== 'https') {
|
||||
return false;
|
||||
}
|
||||
|
||||
$host = $uri->getHost();
|
||||
|
||||
if (! $host || $host === '') {
|
||||
return false;
|
||||
}
|
||||
|
||||
if (! filter_var($host, FILTER_VALIDATE_DOMAIN, FILTER_FLAG_HOSTNAME)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
if (! str_contains($host, '.')) {
|
||||
return false;
|
||||
}
|
||||
|
||||
$valid = Cache::remember($key, 900, function () use ($url) {
|
||||
$localhosts = [
|
||||
'127.0.0.1', 'localhost', '::1',
|
||||
'localhost',
|
||||
'127.0.0.1',
|
||||
'::1',
|
||||
'broadcasthost',
|
||||
'ip6-localhost',
|
||||
'ip6-loopback',
|
||||
];
|
||||
|
||||
if (strtolower(mb_substr($url, 0, 8)) !== 'https://') {
|
||||
return false;
|
||||
}
|
||||
|
||||
if (substr_count($url, '://') !== 1) {
|
||||
return false;
|
||||
}
|
||||
|
||||
if (mb_substr($url, 0, 8) !== 'https://') {
|
||||
$url = 'https://'.substr($url, 8);
|
||||
}
|
||||
|
||||
$valid = filter_var($url, FILTER_VALIDATE_URL);
|
||||
|
||||
if (! $valid) {
|
||||
return false;
|
||||
}
|
||||
|
||||
$host = parse_url($valid, PHP_URL_HOST);
|
||||
|
||||
if (in_array($host, $localhosts)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
if (config('security.url.verify_dns')) {
|
||||
if (DomainService::hasValidDns($host) === false) {
|
||||
if ($disableDNSCheck !== true && app()->environment() === 'production' && (bool) config('security.url.verify_dns')) {
|
||||
$hash = hash('sha256', $host);
|
||||
$key = "helpers:url:valid-dns:sha256-{$hash}";
|
||||
$domainValidDns = Cache::remember($key, 14440, function () use ($host) {
|
||||
return DomainService::hasValidDns($host);
|
||||
});
|
||||
if (! $domainValidDns) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
if (app()->environment() === 'production') {
|
||||
if ($disableDNSCheck !== true && app()->environment() === 'production') {
|
||||
$bannedInstances = InstanceService::getBannedDomains();
|
||||
if (in_array($host, $bannedInstances)) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
return $url;
|
||||
});
|
||||
|
||||
return $valid;
|
||||
return $uri->toString();
|
||||
} catch (UriException $e) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
public static function validateLocalUrl($url)
|
||||
|
|
@ -215,7 +230,12 @@ class Helpers
|
|||
$url = self::validateUrl($url);
|
||||
if ($url == true) {
|
||||
$domain = config('pixelfed.domain.app');
|
||||
$host = parse_url($url, PHP_URL_HOST);
|
||||
|
||||
$uri = Uri::new($url);
|
||||
$host = $uri->getHost();
|
||||
if (! $host || empty($host)) {
|
||||
return false;
|
||||
}
|
||||
$url = strtolower($domain) === strtolower($host) ? $url : false;
|
||||
|
||||
return $url;
|
||||
|
|
|
|||
|
|
@ -2,146 +2,159 @@
|
|||
|
||||
namespace App\Util\ActivityPub;
|
||||
|
||||
use Cache, Log;
|
||||
use App\Models\InstanceActor;
|
||||
use App\Profile;
|
||||
use \DateTime;
|
||||
use Cache;
|
||||
use DateTime;
|
||||
|
||||
class HttpSignature {
|
||||
class HttpSignature
|
||||
{
|
||||
/*
|
||||
* source: https://github.com/aaronpk/Nautilus/blob/master/app/ActivityPub/HTTPSignature.php
|
||||
* thanks aaronpk!
|
||||
*/
|
||||
|
||||
/*
|
||||
* source: https://github.com/aaronpk/Nautilus/blob/master/app/ActivityPub/HTTPSignature.php
|
||||
* thanks aaronpk!
|
||||
*/
|
||||
public static function sign(Profile $profile, $url, $body = false, $addlHeaders = [])
|
||||
{
|
||||
if ($body) {
|
||||
$digest = self::_digest($body);
|
||||
}
|
||||
$user = $profile;
|
||||
$headers = self::_headersToSign($url, $body ? $digest : false);
|
||||
$headers = array_merge($headers, $addlHeaders);
|
||||
$stringToSign = self::_headersToSigningString($headers);
|
||||
$signedHeaders = implode(' ', array_map('strtolower', array_keys($headers)));
|
||||
$key = openssl_pkey_get_private($user->private_key);
|
||||
openssl_sign($stringToSign, $signature, $key, OPENSSL_ALGO_SHA256);
|
||||
$signature = base64_encode($signature);
|
||||
$signatureHeader = 'keyId="'.$user->keyId().'",headers="'.$signedHeaders.'",algorithm="rsa-sha256",signature="'.$signature.'"';
|
||||
unset($headers['(request-target)']);
|
||||
$headers['Signature'] = $signatureHeader;
|
||||
|
||||
public static function sign(Profile $profile, $url, $body = false, $addlHeaders = []) {
|
||||
if($body) {
|
||||
$digest = self::_digest($body);
|
||||
}
|
||||
$user = $profile;
|
||||
$headers = self::_headersToSign($url, $body ? $digest : false);
|
||||
$headers = array_merge($headers, $addlHeaders);
|
||||
$stringToSign = self::_headersToSigningString($headers);
|
||||
$signedHeaders = implode(' ', array_map('strtolower', array_keys($headers)));
|
||||
$key = openssl_pkey_get_private($user->private_key);
|
||||
openssl_sign($stringToSign, $signature, $key, OPENSSL_ALGO_SHA256);
|
||||
$signature = base64_encode($signature);
|
||||
$signatureHeader = 'keyId="'.$user->keyId().'",headers="'.$signedHeaders.'",algorithm="rsa-sha256",signature="'.$signature.'"';
|
||||
unset($headers['(request-target)']);
|
||||
$headers['Signature'] = $signatureHeader;
|
||||
|
||||
return self::_headersToCurlArray($headers);
|
||||
}
|
||||
|
||||
public static function instanceActorSign($url, $body = false, $addlHeaders = [], $method = 'post')
|
||||
{
|
||||
$keyId = config('app.url') . '/i/actor#main-key';
|
||||
$privateKey = Cache::rememberForever(InstanceActor::PKI_PRIVATE, function() {
|
||||
return InstanceActor::first()->private_key;
|
||||
});
|
||||
if($body) {
|
||||
$digest = self::_digest($body);
|
||||
}
|
||||
$headers = self::_headersToSign($url, $body ? $digest : false, $method);
|
||||
$headers = array_merge($headers, $addlHeaders);
|
||||
$stringToSign = self::_headersToSigningString($headers);
|
||||
$signedHeaders = implode(' ', array_map('strtolower', array_keys($headers)));
|
||||
$key = openssl_pkey_get_private($privateKey);
|
||||
openssl_sign($stringToSign, $signature, $key, OPENSSL_ALGO_SHA256);
|
||||
$signature = base64_encode($signature);
|
||||
$signatureHeader = 'keyId="'.$keyId.'",headers="'.$signedHeaders.'",algorithm="rsa-sha256",signature="'.$signature.'"';
|
||||
unset($headers['(request-target)']);
|
||||
$headers['Signature'] = $signatureHeader;
|
||||
|
||||
return $headers;
|
||||
}
|
||||
|
||||
public static function parseSignatureHeader($signature) {
|
||||
$parts = explode(',', $signature);
|
||||
$signatureData = [];
|
||||
|
||||
foreach($parts as $part) {
|
||||
if(preg_match('/(.+)="(.+)"/', $part, $match)) {
|
||||
$signatureData[$match[1]] = $match[2];
|
||||
}
|
||||
return self::_headersToCurlArray($headers);
|
||||
}
|
||||
|
||||
if(!isset($signatureData['keyId'])) {
|
||||
return [
|
||||
'error' => 'No keyId was found in the signature header. Found: '.implode(', ', array_keys($signatureData))
|
||||
];
|
||||
public static function instanceActorSign($url, $body = false, $addlHeaders = [], $method = 'post')
|
||||
{
|
||||
$keyId = config('app.url').'/i/actor#main-key';
|
||||
$privateKey = Cache::rememberForever(InstanceActor::PKI_PRIVATE, function () {
|
||||
return InstanceActor::first()->private_key;
|
||||
});
|
||||
if ($body) {
|
||||
$digest = self::_digest($body);
|
||||
}
|
||||
$headers = self::_headersToSign($url, $body ? $digest : false, $method);
|
||||
$headers = array_merge($headers, $addlHeaders);
|
||||
$stringToSign = self::_headersToSigningString($headers);
|
||||
$signedHeaders = implode(' ', array_map('strtolower', array_keys($headers)));
|
||||
$key = openssl_pkey_get_private($privateKey);
|
||||
openssl_sign($stringToSign, $signature, $key, OPENSSL_ALGO_SHA256);
|
||||
$signature = base64_encode($signature);
|
||||
$signatureHeader = 'keyId="'.$keyId.'",headers="'.$signedHeaders.'",algorithm="rsa-sha256",signature="'.$signature.'"';
|
||||
unset($headers['(request-target)']);
|
||||
$headers['Signature'] = $signatureHeader;
|
||||
|
||||
return $headers;
|
||||
}
|
||||
|
||||
if(!filter_var($signatureData['keyId'], FILTER_VALIDATE_URL)) {
|
||||
return [
|
||||
'error' => 'keyId is not a URL: '.$signatureData['keyId']
|
||||
];
|
||||
public static function parseSignatureHeader($signature)
|
||||
{
|
||||
$parts = explode(',', $signature);
|
||||
$signatureData = [];
|
||||
|
||||
foreach ($parts as $part) {
|
||||
if (preg_match('/(.+)="(.+)"/', $part, $match)) {
|
||||
$signatureData[$match[1]] = $match[2];
|
||||
}
|
||||
}
|
||||
|
||||
if (! isset($signatureData['keyId'])) {
|
||||
return [
|
||||
'error' => 'No keyId was found in the signature header. Found: '.implode(', ', array_keys($signatureData)),
|
||||
];
|
||||
}
|
||||
|
||||
if (! filter_var($signatureData['keyId'], FILTER_VALIDATE_URL)) {
|
||||
return [
|
||||
'error' => 'keyId is not a URL: '.$signatureData['keyId'],
|
||||
];
|
||||
}
|
||||
|
||||
if (! Helpers::validateUrl($signatureData['keyId'])) {
|
||||
return [
|
||||
'error' => 'keyId is not a URL: '.$signatureData['keyId'],
|
||||
];
|
||||
}
|
||||
|
||||
if (! isset($signatureData['headers']) || ! isset($signatureData['signature'])) {
|
||||
return [
|
||||
'error' => 'Signature is missing headers or signature parts',
|
||||
];
|
||||
}
|
||||
|
||||
return $signatureData;
|
||||
}
|
||||
|
||||
if(!isset($signatureData['headers']) || !isset($signatureData['signature'])) {
|
||||
return [
|
||||
'error' => 'Signature is missing headers or signature parts'
|
||||
];
|
||||
public static function verify($publicKey, $signatureData, $inputHeaders, $path, $body)
|
||||
{
|
||||
$digest = 'SHA-256='.base64_encode(hash('sha256', $body, true));
|
||||
$headersToSign = [];
|
||||
foreach (explode(' ', $signatureData['headers']) as $h) {
|
||||
if ($h == '(request-target)') {
|
||||
$headersToSign[$h] = 'post '.$path;
|
||||
} elseif ($h == 'digest') {
|
||||
$headersToSign[$h] = $digest;
|
||||
} elseif (isset($inputHeaders[$h][0])) {
|
||||
$headersToSign[$h] = $inputHeaders[$h][0];
|
||||
}
|
||||
}
|
||||
$signingString = self::_headersToSigningString($headersToSign);
|
||||
|
||||
$verified = openssl_verify($signingString, base64_decode($signatureData['signature']), $publicKey, OPENSSL_ALGO_SHA256);
|
||||
|
||||
return [$verified, $signingString];
|
||||
}
|
||||
|
||||
return $signatureData;
|
||||
}
|
||||
|
||||
public static function verify($publicKey, $signatureData, $inputHeaders, $path, $body) {
|
||||
$digest = 'SHA-256='.base64_encode(hash('sha256', $body, true));
|
||||
$headersToSign = [];
|
||||
foreach(explode(' ',$signatureData['headers']) as $h) {
|
||||
if($h == '(request-target)') {
|
||||
$headersToSign[$h] = 'post '.$path;
|
||||
} elseif($h == 'digest') {
|
||||
$headersToSign[$h] = $digest;
|
||||
} elseif(isset($inputHeaders[$h][0])) {
|
||||
$headersToSign[$h] = $inputHeaders[$h][0];
|
||||
}
|
||||
}
|
||||
$signingString = self::_headersToSigningString($headersToSign);
|
||||
|
||||
$verified = openssl_verify($signingString, base64_decode($signatureData['signature']), $publicKey, OPENSSL_ALGO_SHA256);
|
||||
|
||||
return [$verified, $signingString];
|
||||
}
|
||||
|
||||
private static function _headersToSigningString($headers) {
|
||||
return implode("\n", array_map(function($k, $v){
|
||||
return strtolower($k).': '.$v;
|
||||
}, array_keys($headers), $headers));
|
||||
}
|
||||
|
||||
private static function _headersToCurlArray($headers) {
|
||||
return array_map(function($k, $v){
|
||||
return "$k: $v";
|
||||
}, array_keys($headers), $headers);
|
||||
}
|
||||
|
||||
private static function _digest($body) {
|
||||
if(is_array($body)) {
|
||||
$body = json_encode($body);
|
||||
}
|
||||
return base64_encode(hash('sha256', $body, true));
|
||||
}
|
||||
|
||||
protected static function _headersToSign($url, $digest = false, $method = 'post') {
|
||||
$date = new DateTime('UTC');
|
||||
|
||||
if(!in_array($method, ['post', 'get'])) {
|
||||
throw new \Exception('Invalid method used to sign headers in HttpSignature');
|
||||
}
|
||||
$headers = [
|
||||
'(request-target)' => $method . ' '.parse_url($url, PHP_URL_PATH),
|
||||
'Host' => parse_url($url, PHP_URL_HOST),
|
||||
'Date' => $date->format('D, d M Y H:i:s \G\M\T'),
|
||||
];
|
||||
|
||||
if($digest) {
|
||||
$headers['Digest'] = 'SHA-256='.$digest;
|
||||
private static function _headersToSigningString($headers)
|
||||
{
|
||||
return implode("\n", array_map(function ($k, $v) {
|
||||
return strtolower($k).': '.$v;
|
||||
}, array_keys($headers), $headers));
|
||||
}
|
||||
|
||||
return $headers;
|
||||
}
|
||||
private static function _headersToCurlArray($headers)
|
||||
{
|
||||
return array_map(function ($k, $v) {
|
||||
return "$k: $v";
|
||||
}, array_keys($headers), $headers);
|
||||
}
|
||||
|
||||
private static function _digest($body)
|
||||
{
|
||||
if (is_array($body)) {
|
||||
$body = json_encode($body);
|
||||
}
|
||||
|
||||
return base64_encode(hash('sha256', $body, true));
|
||||
}
|
||||
|
||||
protected static function _headersToSign($url, $digest = false, $method = 'post')
|
||||
{
|
||||
$date = new DateTime('UTC');
|
||||
|
||||
if (! in_array($method, ['post', 'get'])) {
|
||||
throw new \Exception('Invalid method used to sign headers in HttpSignature');
|
||||
}
|
||||
$headers = [
|
||||
'(request-target)' => $method.' '.parse_url($url, PHP_URL_PATH),
|
||||
'Host' => parse_url($url, PHP_URL_HOST),
|
||||
'Date' => $date->format('D, d M Y H:i:s \G\M\T'),
|
||||
];
|
||||
|
||||
if ($digest) {
|
||||
$headers['Digest'] = 'SHA-256='.$digest;
|
||||
}
|
||||
|
||||
return $headers;
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue