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Fix security vulnerbilities.

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Fix possible length extension attack, predicable generators, timing attacks on hash comparision and improved formatting.
This commit is contained in:
dew-git 2019-10-10 15:21:41 -08:00
parent 50fa119f79
commit 811cdcdfcb
8 changed files with 455 additions and 332 deletions
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371
library/OAuth1.php
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@ -4,27 +4,30 @@
/* Generic exception class
*/
if (!class_exists('OAuthException', false)) {
class OAuthException extends Exception {
// pass
}
class OAuthException extends Exception
{ }
}
class OAuthConsumer {
class OAuthConsumer
{
public $key;
public $secret;
function __construct($key, $secret, $callback_url=NULL) {
function __construct($key, $secret, $callback_url = NULL)
{
$this->key = $key;
$this->secret = $secret;
$this->callback_url = $callback_url;
}
function __toString() {
function __toString()
{
return "OAuthConsumer[key=$this->key,secret=$this->secret]";
}
}
class OAuthToken {
class OAuthToken
{
// access tokens and request tokens
public $key;
public $secret;
@ -37,7 +40,8 @@ class OAuthToken {
* key = the token
* secret = the token secret
*/
function __construct($key, $secret) {
function __construct($key, $secret)
{
$this->key = $key;
$this->secret = $secret;
}
@ -46,14 +50,16 @@ class OAuthToken {
* generates the basic string serialization of a token that a server
* would respond to request_token and access_token calls with
*/
function to_string() {
function to_string()
{
return "oauth_token=" .
OAuthUtil::urlencode_rfc3986($this->key) .
"&oauth_token_secret=" .
OAuthUtil::urlencode_rfc3986($this->secret);
OAuthUtil::urlencode_rfc3986($this->key) .
"&oauth_token_secret=" .
OAuthUtil::urlencode_rfc3986($this->secret);
}
function __toString() {
function __toString()
{
return $this->to_string();
}
}
@ -62,7 +68,8 @@ class OAuthToken {
* A class for implementing a Signature Method
* See section 9 ("Signing Requests") in the spec
*/
abstract class OAuthSignatureMethod {
abstract class OAuthSignatureMethod
{
/**
* Needs to return the name of the Signature Method (ie HMAC-SHA1)
* @return string
@ -89,25 +96,29 @@ abstract class OAuthSignatureMethod {
* @param string $signature
* @return bool
*/
public function check_signature($request, $consumer, $token, $signature) {
public function check_signature($request, $consumer, $token, $signature)
{
$built = $this->build_signature($request, $consumer, $token);
return ($built == $signature);
}
}
/**
* The HMAC-SHA1 signature method uses the HMAC-SHA1 signature algorithm as defined in [RFC2104]
* where the Signature Base String is the text and the key is the concatenated values (each first
* encoded per Parameter Encoding) of the Consumer Secret and Token Secret, separated by an '&'
* The HMAC-SHA1 signature method uses the HMAC-SHA1 signature algorithm as defined in [RFC2104]
* where the Signature Base String is the text and the key is the concatenated values (each first
* encoded per Parameter Encoding) of the Consumer Secret and Token Secret, separated by an '&'
* character (ASCII code 38) even if empty.
* - Chapter 9.2 ("HMAC-SHA1")
*/
class OAuthSignatureMethod_HMAC_SHA1 extends OAuthSignatureMethod {
function get_name() {
class OAuthSignatureMethod_HMAC_SHA1 extends OAuthSignatureMethod
{
function get_name()
{
return "HMAC-SHA1";
}
public function build_signature($request, $consumer, $token) {
public function build_signature($request, $consumer, $token)
{
$base_string = $request->get_signature_base_string();
$request->base_string = $base_string;
@ -126,25 +137,28 @@ class OAuthSignatureMethod_HMAC_SHA1 extends OAuthSignatureMethod {
}
/**
* The PLAINTEXT method does not provide any security protection and SHOULD only be used
* The PLAINTEXT method does not provide any security protection and SHOULD only be used
* over a secure channel such as HTTPS. It does not use the Signature Base String.
* - Chapter 9.4 ("PLAINTEXT")
*/
class OAuthSignatureMethod_PLAINTEXT extends OAuthSignatureMethod {
public function get_name() {
class OAuthSignatureMethod_PLAINTEXT extends OAuthSignatureMethod
{
public function get_name()
{
return "PLAINTEXT";
}
/**
* oauth_signature is set to the concatenated encoded values of the Consumer Secret and
* Token Secret, separated by a '&' character (ASCII code 38), even if either secret is
* oauth_signature is set to the concatenated encoded values of the Consumer Secret and
* Token Secret, separated by a '&' character (ASCII code 38), even if either secret is
* empty. The result MUST be encoded again.
* - Chapter 9.4.1 ("Generating Signatures")
*
* Please note that the second encoding MUST NOT happen in the SignatureMethod, as
* OAuthRequest handles this!
*/
public function build_signature($request, $consumer, $token) {
public function build_signature($request, $consumer, $token)
{
$key_parts = array(
$consumer->secret,
($token) ? $token->secret : ""
@ -159,15 +173,17 @@ class OAuthSignatureMethod_PLAINTEXT extends OAuthSignatureMethod {
}
/**
* The RSA-SHA1 signature method uses the RSASSA-PKCS1-v1_5 signature algorithm as defined in
* [RFC3447] section 8.2 (more simply known as PKCS#1), using SHA-1 as the hash function for
* EMSA-PKCS1-v1_5. It is assumed that the Consumer has provided its RSA public key in a
* verified way to the Service Provider, in a manner which is beyond the scope of this
* The RSA-SHA1 signature method uses the RSASSA-PKCS1-v1_5 signature algorithm as defined in
* [RFC3447] section 8.2 (more simply known as PKCS#1), using SHA-1 as the hash function for
* EMSA-PKCS1-v1_5. It is assumed that the Consumer has provided its RSA public key in a
* verified way to the Service Provider, in a manner which is beyond the scope of this
* specification.
* - Chapter 9.3 ("RSA-SHA1")
*/
abstract class OAuthSignatureMethod_RSA_SHA1 extends OAuthSignatureMethod {
public function get_name() {
abstract class OAuthSignatureMethod_RSA_SHA1 extends OAuthSignatureMethod
{
public function get_name()
{
return "RSA-SHA1";
}
@ -185,7 +201,8 @@ abstract class OAuthSignatureMethod_RSA_SHA1 extends OAuthSignatureMethod {
// Either way should return a string representation of the certificate
protected abstract function fetch_private_cert(&$request);
public function build_signature($request, $consumer, $token) {
public function build_signature($request, $consumer, $token)
{
$base_string = $request->get_signature_base_string();
$request->base_string = $base_string;
@ -204,7 +221,8 @@ abstract class OAuthSignatureMethod_RSA_SHA1 extends OAuthSignatureMethod {
return base64_encode($signature);
}
public function check_signature($request, $consumer, $token, $signature) {
public function check_signature($request, $consumer, $token, $signature)
{
$decoded_sig = base64_decode($signature);
$base_string = $request->get_signature_base_string();
@ -225,7 +243,8 @@ abstract class OAuthSignatureMethod_RSA_SHA1 extends OAuthSignatureMethod {
}
}
class OAuthRequest {
class OAuthRequest
{
private $parameters;
private $http_method;
private $http_url;
@ -234,9 +253,10 @@ class OAuthRequest {
public static $version = '1.0';
public static $POST_INPUT = 'php://input';
function __construct($http_method, $http_url, $parameters=NULL) {
function __construct($http_method, $http_url, $parameters = NULL)
{
@$parameters or $parameters = array();
$parameters = array_merge( OAuthUtil::parse_parameters(parse_url($http_url, PHP_URL_QUERY)), $parameters);
$parameters = array_merge(OAuthUtil::parse_parameters(parse_url($http_url, PHP_URL_QUERY)), $parameters);
$this->parameters = $parameters;
$this->http_method = $http_method;
$this->http_url = $http_url;
@ -246,15 +266,16 @@ class OAuthRequest {
/**
* attempt to build up a request from what was passed to the server
*/
public static function from_request($http_method=NULL, $http_url=NULL, $parameters=NULL) {
public static function from_request($http_method = NULL, $http_url = NULL, $parameters = NULL)
{
$scheme = (!isset($_SERVER['HTTPS']) || $_SERVER['HTTPS'] != "on")
? 'http'
: 'https';
? 'http'
: 'https';
@$http_url or $http_url = $scheme .
'://' . $_SERVER['HTTP_HOST'] .
':' .
$_SERVER['SERVER_PORT'] .
$_SERVER['REQUEST_URI'];
'://' . $_SERVER['HTTP_HOST'] .
':' .
$_SERVER['SERVER_PORT'] .
$_SERVER['REQUEST_URI'];
@$http_method or $http_method = $_SERVER['REQUEST_METHOD'];
// We weren't handed any parameters, so let's find the ones relevant to
@ -270,10 +291,13 @@ class OAuthRequest {
// It's a POST request of the proper content-type, so parse POST
// parameters and add those overriding any duplicates from GET
if ($http_method == "POST"
&& @strstr($request_headers["Content-Type"],
"application/x-www-form-urlencoded")
) {
if (
$http_method == "POST"
&& @strstr(
$request_headers["Content-Type"],
"application/x-www-form-urlencoded"
)
) {
$post_data = OAuthUtil::parse_parameters(
file_get_contents(self::$POST_INPUT)
);
@ -288,25 +312,27 @@ class OAuthRequest {
);
$parameters = array_merge($parameters, $header_parameters);
}
}
// fix for friendica redirect system
$http_url = substr($http_url, 0, strpos($http_url,$parameters['pagename'])+strlen($parameters['pagename']));
unset( $parameters['pagename'] );
$http_url = substr($http_url, 0, strpos($http_url, $parameters['pagename']) + strlen($parameters['pagename']));
unset($parameters['pagename']);
return new OAuthRequest($http_method, $http_url, $parameters);
}
/**
* pretty much a helper function to set up the request
*/
public static function from_consumer_and_token($consumer, $token, $http_method, $http_url, $parameters=NULL) {
public static function from_consumer_and_token($consumer, $token, $http_method, $http_url, $parameters = NULL)
{
@$parameters or $parameters = array();
$defaults = array("oauth_version" => OAuthRequest::$version,
"oauth_nonce" => OAuthRequest::generate_nonce(),
"oauth_timestamp" => OAuthRequest::generate_timestamp(),
"oauth_consumer_key" => $consumer->key);
$defaults = array(
"oauth_version" => OAuthRequest::$version,
"oauth_nonce" => OAuthRequest::generate_nonce(),
"oauth_timestamp" => OAuthRequest::generate_timestamp(),
"oauth_consumer_key" => $consumer->key
);
if ($token)
$defaults['oauth_token'] = $token->key;
@ -315,7 +341,8 @@ class OAuthRequest {
return new OAuthRequest($http_method, $http_url, $parameters);
}
public function set_parameter($name, $value, $allow_duplicates = true) {
public function set_parameter($name, $value, $allow_duplicates = true)
{
if ($allow_duplicates && isset($this->parameters[$name])) {
// We have already added parameter(s) with this name, so add to the list
if (is_scalar($this->parameters[$name])) {
@ -330,15 +357,18 @@ class OAuthRequest {
}
}
public function get_parameter($name) {
public function get_parameter($name)
{
return isset($this->parameters[$name]) ? $this->parameters[$name] : null;
}
public function get_parameters() {
public function get_parameters()
{
return $this->parameters;
}
public function unset_parameter($name) {
public function unset_parameter($name)
{
unset($this->parameters[$name]);
}
@ -346,7 +376,8 @@ class OAuthRequest {
* The request parameters, sorted and concatenated into a normalized string.
* @return string
*/
public function get_signable_parameters() {
public function get_signable_parameters()
{
// Grab all parameters
$params = $this->parameters;
@ -366,7 +397,8 @@ class OAuthRequest {
* and the parameters (normalized), each urlencoded
* and the concated with &.
*/
public function get_signature_base_string() {
public function get_signature_base_string()
{
$parts = array(
$this->get_normalized_http_method(),
$this->get_normalized_http_url(),
@ -381,7 +413,8 @@ class OAuthRequest {
/**
* just uppercases the http method
*/
public function get_normalized_http_method() {
public function get_normalized_http_method()
{
return strtoupper($this->http_method);
}
@ -389,7 +422,8 @@ class OAuthRequest {
* parses the url and rebuilds it to be
* scheme://host/path
*/
public function get_normalized_http_url() {
public function get_normalized_http_url()
{
$parts = parse_url($this->http_url);
$port = @$parts['port'];
@ -400,7 +434,8 @@ class OAuthRequest {
$port or $port = ($scheme == 'https') ? '443' : '80';
if (($scheme == 'https' && $port != '443')
|| ($scheme == 'http' && $port != '80')) {
|| ($scheme == 'http' && $port != '80')
) {
$host = "$host:$port";
}
return "$scheme://$host$path";
@ -409,11 +444,12 @@ class OAuthRequest {
/**
* builds a url usable for a GET request
*/
public function to_url() {
public function to_url()
{
$post_data = $this->to_postdata();
$out = $this->get_normalized_http_url();
if ($post_data) {
$out .= '?'.$post_data;
$out .= '?' . $post_data;
}
return $out;
}
@ -421,9 +457,10 @@ class OAuthRequest {
/**
* builds the data one would send in a POST request
*/
public function to_postdata($raw = false) {
public function to_postdata($raw = false)
{
if ($raw)
return($this->parameters);
return $this->parameters;
else
return OAuthUtil::build_http_query($this->parameters);
}
@ -431,15 +468,15 @@ class OAuthRequest {
/**
* builds the Authorization: header
*/
public function to_header($realm=null) {
public function to_header($realm = null)
{
$first = true;
if($realm) {
if ($realm) {
$out = 'Authorization: OAuth realm="' . OAuthUtil::urlencode_rfc3986($realm) . '"';
$first = false;
} else
$out = 'Authorization: OAuth';
$total = array();
foreach ($this->parameters as $k => $v) {
if (substr($k, 0, 5) != "oauth") continue;
if (is_array($v)) {
@ -447,20 +484,22 @@ class OAuthRequest {
}
$out .= ($first) ? ' ' : ',';
$out .= OAuthUtil::urlencode_rfc3986($k) .
'="' .
OAuthUtil::urlencode_rfc3986($v) .
'"';
'="' .
OAuthUtil::urlencode_rfc3986($v) .
'"';
$first = false;
}
return $out;
}
public function __toString() {
public function __toString()
{
return $this->to_url();
}
public function sign_request($signature_method, $consumer, $token) {
public function sign_request($signature_method, $consumer, $token)
{
$this->set_parameter(
"oauth_signature_method",
$signature_method->get_name(),
@ -470,7 +509,8 @@ class OAuthRequest {
$this->set_parameter("oauth_signature", $signature, false);
}
public function build_signature($signature_method, $consumer, $token) {
public function build_signature($signature_method, $consumer, $token)
{
$signature = $signature_method->build_signature($this, $consumer, $token);
return $signature;
}
@ -478,33 +518,35 @@ class OAuthRequest {
/**
* util function: current timestamp
*/
private static function generate_timestamp() {
private static function generate_timestamp()
{
return time();
}
/**
* util function: current nonce
*/
private static function generate_nonce() {
$mt = microtime();
$rand = mt_rand();
return md5($mt . $rand); // md5s look nicer than numbers
private static function generate_nonce()
{
return bin2hex(random_bytes(16));
}
}
class OAuthServer {
class OAuthServer
{
protected $timestamp_threshold = 300; // in seconds, five minutes
protected $version = '1.0'; // hi blaine
protected $signature_methods = array();
protected $data_store;
function __construct($data_store) {
function __construct($data_store)
{
$this->data_store = $data_store;
}
public function add_signature_method($signature_method) {
public function add_signature_method($signature_method)
{
$this->signature_methods[$signature_method->get_name()] =
$signature_method;
}
@ -515,7 +557,8 @@ class OAuthServer {
* process a request_token request
* returns the request token on success
*/
public function fetch_request_token(&$request) {
public function fetch_request_token(&$request)
{
$this->get_version($request);
$consumer = $this->get_consumer($request);
@ -536,7 +579,8 @@ class OAuthServer {
* process an access_token request
* returns the access token on success
*/
public function fetch_access_token(&$request) {
public function fetch_access_token(&$request)
{
$this->get_version($request);
$consumer = $this->get_consumer($request);
@ -556,22 +600,24 @@ class OAuthServer {
/**
* verify an api call, checks all the parameters
*/
public function verify_request(&$request) {
public function verify_request(&$request)
{
$this->get_version($request);
$consumer = $this->get_consumer($request);
$token = $this->get_token($request, $consumer, "access");
$this->check_signature($request, $consumer, $token);
return array($consumer, $token);
return [$consumer, $token];
}
// Internals from here
/**
* version 1
*/
private function get_version(&$request) {
private function get_version(&$request)
{
$version = $request->get_parameter("oauth_version");
if (!$version) {
// Service Providers MUST assume the protocol version to be 1.0 if this parameter is not present.
// Service Providers MUST assume the protocol version to be 1.0 if this parameter is not present.
// Chapter 7.0 ("Accessing Protected Ressources")
$version = '1.0';
}
@ -584,9 +630,10 @@ class OAuthServer {
/**
* figure out the signature with some defaults
*/
private function get_signature_method(&$request) {
private function get_signature_method(&$request)
{
$signature_method =
@$request->get_parameter("oauth_signature_method");
@$request->get_parameter("oauth_signature_method");
if (!$signature_method) {
// According to chapter 7 ("Accessing Protected Ressources") the signature-method
@ -594,12 +641,14 @@ class OAuthServer {
throw new OAuthException('No signature method parameter. This parameter is required');
}
if (!in_array($signature_method,
array_keys($this->signature_methods))) {
if (!in_array(
$signature_method,
array_keys($this->signature_methods)
)) {
throw new OAuthException(
"Signature method '$signature_method' not supported " .
"try one of the following: " .
implode(", ", array_keys($this->signature_methods))
"try one of the following: " .
implode(", ", array_keys($this->signature_methods))
);
}
return $this->signature_methods[$signature_method];
@ -608,7 +657,8 @@ class OAuthServer {
/**
* try to find the consumer for the provided request's consumer key
*/
private function get_consumer(&$request) {
private function get_consumer(&$request)
{
$consumer_key = @$request->get_parameter("oauth_consumer_key");
if (!$consumer_key) {
throw new OAuthException("Invalid consumer key");
@ -625,10 +675,13 @@ class OAuthServer {
/**
* try to find the token for the provided request's token key
*/
private function get_token(&$request, $consumer, $token_type="access") {
private function get_token(&$request, $consumer, $token_type = "access")
{
$token_field = @$request->get_parameter('oauth_token');
$token = $this->data_store->lookup_token(
$consumer, $token_type, $token_field
$consumer,
$token_type,
$token_field
);
if (!$token) {
throw new OAuthException("Invalid $token_type token: $token_field");
@ -640,7 +693,8 @@ class OAuthServer {
* all-in-one function to check the signature on a request
* should guess the signature method appropriately
*/
private function check_signature(&$request, $consumer, $token) {
private function check_signature(&$request, $consumer, $token)
{
// this should probably be in a different method
$timestamp = @$request->get_parameter('oauth_timestamp');
$nonce = @$request->get_parameter('oauth_nonce');
@ -657,7 +711,7 @@ class OAuthServer {
$token,
$signature
);
if (!$valid_sig) {
throw new OAuthException("Invalid signature");
@ -667,12 +721,13 @@ class OAuthServer {
/**
* check that the timestamp is new enough
*/
private function check_timestamp($timestamp) {
if( ! $timestamp )
private function check_timestamp($timestamp)
{
if (!$timestamp)
throw new OAuthException(
'Missing timestamp parameter. The parameter is required'
);
// verify that timestamp is recentish
$now = time();
if (abs($now - $timestamp) > $this->timestamp_threshold) {
@ -685,8 +740,9 @@ class OAuthServer {
/**
* check that the nonce is not repeated
*/
private function check_nonce($consumer, $token, $nonce, $timestamp) {
if( ! $nonce )
private function check_nonce($consumer, $token, $nonce, $timestamp)
{
if (!$nonce)
throw new OAuthException(
'Missing nonce parameter. The parameter is required'
);
@ -702,65 +758,73 @@ class OAuthServer {
throw new OAuthException("Nonce already used: $nonce");
}
}
}
class OAuthDataStore {
function lookup_consumer($consumer_key) {
class OAuthDataStore
{
function lookup_consumer($consumer_key)
{
// implement me
}
function lookup_token($consumer, $token_type, $token) {
function lookup_token($consumer, $token_type, $token)
{
// implement me
}
function lookup_nonce($consumer, $token, $nonce, $timestamp) {
function lookup_nonce($consumer, $token, $nonce, $timestamp)
{
// implement me
}
function new_request_token($consumer, $callback = null) {
function new_request_token($consumer, $callback = null)
{
// return a new token attached to this consumer
}
function new_access_token($token, $consumer, $verifier = null) {
function new_access_token($token, $consumer, $verifier = null)
{
// return a new access token attached to this consumer
// for the user associated with this token if the request token
// is authorized
// should also invalidate the request token
}
}
class OAuthUtil {
public static function urlencode_rfc3986($input) {
if (is_array($input)) {
return array_map(array('OAuthUtil', 'urlencode_rfc3986'), $input);
} else if (is_scalar($input)) {
return str_replace(
'+',
' ',
str_replace('%7E', '~', rawurlencode($input))
);
} else {
return '';
class OAuthUtil
{
public static function urlencode_rfc3986($input)
{
if (is_array($input)) {
return array_map(['OAuthUtil', 'urlencode_rfc3986'], $input);
} else if (is_scalar($input)) {
return str_replace(
'+',
' ',
str_replace('%7E', '~', rawurlencode($input))
);
} else {
return '';
}
}
}
// This decode function isn't taking into consideration the above
// modifications to the encoding process. However, this method doesn't
// seem to be used anywhere so leaving it as is.
public static function urldecode_rfc3986($string) {
public static function urldecode_rfc3986($string)
{
return urldecode($string);
}
// Utility function for turning the Authorization: header into
// parameters, has to do some unescaping
// Can filter out any non-oauth parameters if needed (default behaviour)
public static function split_header($header, $only_allow_oauth_parameters = true) {
public static function split_header($header, $only_allow_oauth_parameters = true)
{
$pattern = '/(([-_a-z]*)=("([^"]*)"|([^,]*)),?)/';
$offset = 0;
$params = array();
$params = [];
while (preg_match($pattern, $header, $matches, PREG_OFFSET_CAPTURE, $offset) > 0) {
$match = $matches[0];
$header_name = $matches[2][0];
@ -779,7 +843,8 @@ class OAuthUtil {
}
// helper to try to sort out headers for people who aren't running apache
public static function get_headers() {
public static function get_headers()
{
if (function_exists('apache_request_headers')) {
// we need this to get the actual Authorization: header
// because apache tends to tell us it doesn't exist
@ -789,22 +854,22 @@ class OAuthUtil {
// we always want the keys to be Cased-Like-This and arh()
// returns the headers in the same case as they are in the
// request
$out = array();
foreach( $headers AS $key => $value ) {
$out = [];
foreach ($headers as $key => $value) {
$key = str_replace(
" ",
"-",
ucwords(strtolower(str_replace("-", " ", $key)))
);
" ",
"-",
ucwords(strtolower(str_replace("-", " ", $key)))
);
$out[$key] = $value;
}
} else {
// otherwise we don't have apache and are just going to have to hope
// that $_SERVER actually contains what we need
$out = array();
if( isset($_SERVER['CONTENT_TYPE']) )
$out = [];
if (isset($_SERVER['CONTENT_TYPE']))
$out['Content-Type'] = $_SERVER['CONTENT_TYPE'];
if( isset($_ENV['CONTENT_TYPE']) )
if (isset($_ENV['CONTENT_TYPE']))
$out['Content-Type'] = $_ENV['CONTENT_TYPE'];
foreach ($_SERVER as $key => $value) {
@ -827,12 +892,13 @@ class OAuthUtil {
// This function takes a input like a=b&a=c&d=e and returns the parsed
// parameters like this
// array('a' => array('b','c'), 'd' => 'e')
public static function parse_parameters( $input ) {
public static function parse_parameters($input)
{
if (!isset($input) || !$input) return array();
$pairs = explode('&', $input);
$parsed_parameters = array();
$parsed_parameters = [];
foreach ($pairs as $pair) {
$split = explode('=', $pair, 2);
$parameter = OAuthUtil::urldecode_rfc3986($split[0]);
@ -845,7 +911,7 @@ class OAuthUtil {
if (is_scalar($parsed_parameters[$parameter])) {
// This is the first duplicate, so transform scalar (string) into an array
// so we can add the duplicates
$parsed_parameters[$parameter] = array($parsed_parameters[$parameter]);
$parsed_parameters[$parameter] = [$parsed_parameters[$parameter]];
}
$parsed_parameters[$parameter][] = $value;
@ -856,7 +922,8 @@ class OAuthUtil {
return $parsed_parameters;
}
public static function build_http_query($params) {
public static function build_http_query($params)
{
if (!$params) return '';
// Urlencode both keys and values
@ -868,7 +935,7 @@ class OAuthUtil {
// Ref: Spec: 9.1.1 (1)
uksort($params, 'strcmp');
$pairs = array();
$pairs = [];
foreach ($params as $parameter => $value) {
if (is_array($value)) {
// If two or more parameters share the same name, they are sorted by their value
@ -886,5 +953,3 @@ class OAuthUtil {
return implode('&', $pairs);
}
}
?>

3
mod/lostpass.php
View file

@ -1,4 +1,5 @@
<?php
/**
* @file mod/lostpass.php
*/
@ -27,7 +28,7 @@ function lostpass_post(App $a)
$a->internalRedirect();
}
$pwdreset_token = Strings::getRandomName(12) . mt_rand(1000, 9999);
$pwdreset_token = Strings::getRandomName(12) . random_int(1000, 9999);
$fields = [
'pwdreset' => $pwdreset_token,

20
src/Core/Authentication.php
View file

@ -1,4 +1,5 @@
<?php
/**
* @file /src/Core/Authentication.php
*/
@ -10,8 +11,8 @@ use Friendica\BaseObject;
use Friendica\Network\HTTPException\ForbiddenException;
/**
* Handle Authentification, Session and Cookies
*/
* Handle Authentification, Session and Cookies
*/
class Authentication extends BaseObject
{
/**
@ -24,9 +25,11 @@ class Authentication extends BaseObject
*/
public static function getCookieHashForUser($user)
{
return(hash("sha256", Config::get("system", "site_prvkey") .
$user["prvkey"] .
$user["password"]));
return hash_hmac(
"sha256",
hash_hmac("sha256", $user["password"], $user["privkey"]),
Config::get("system", "site_prvkey")
);
}
/**
@ -43,9 +46,11 @@ class Authentication extends BaseObject
}
if ($user) {
$value = json_encode(["uid" => $user["uid"],
$value = json_encode([
"uid" => $user["uid"],
"hash" => self::getCookieHashForUser($user),
"ip" => defaults($_SERVER, 'REMOTE_ADDR', '0.0.0.0')]);
"ip" => defaults($_SERVER, 'REMOTE_ADDR', '0.0.0.0')
]);
} else {
$value = "";
}
@ -88,4 +93,3 @@ class Authentication extends BaseObject
}
}
}

3
src/Model/Register.php
View file

@ -3,6 +3,7 @@
/**
* @file src/Model/Register.php
*/
namespace Friendica\Model;
use Friendica\Database\DBA;
@ -83,7 +84,7 @@ class Register
*/
public static function createForInvitation()
{
$code = Strings::getRandomName(8) . srand(1000, 9999);
$code = Strings::getRandomName(8) . random_int(1000, 9999);
$fields = [
'hash' => $code,

92
src/Model/User.php
View file

@ -1,8 +1,10 @@
<?php
/**
* @file src/Model/User.php
* @brief This file includes the User class with user related database functions
*/
namespace Friendica\Model;
use DivineOmega\PasswordExposed;
@ -155,8 +157,10 @@ class User
* @return boolean|array
* @throws Exception
*/
public static function getOwnerDataById($uid, $check_valid = true) {
$r = DBA::fetchFirst("SELECT
public static function getOwnerDataById($uid, $check_valid = true)
{
$r = DBA::fetchFirst(
"SELECT
`contact`.*,
`user`.`prvkey` AS `uprvkey`,
`user`.`timezone`,
@ -355,7 +359,8 @@ class User
$user = $user_info;
}
if (!isset($user['uid'])
if (
!isset($user['uid'])
|| !isset($user['password'])
|| !isset($user['legacy_password'])
) {
@ -363,7 +368,9 @@ class User
}
} elseif (is_int($user_info) || is_string($user_info)) {
if (is_int($user_info)) {
$user = DBA::selectFirst('user', ['uid', 'password', 'legacy_password'],
$user = DBA::selectFirst(
'user',
['uid', 'password', 'legacy_password'],
[
'uid' => $user_info,
'blocked' => 0,
@ -374,9 +381,11 @@ class User
);
} else {
$fields = ['uid', 'password', 'legacy_password'];
$condition = ["(`email` = ? OR `username` = ? OR `nickname` = ?)
$condition = [
"(`email` = ? OR `username` = ? OR `nickname` = ?)
AND NOT `blocked` AND NOT `account_expired` AND NOT `account_removed` AND `verified`",
$user_info, $user_info, $user_info];
$user_info, $user_info, $user_info
];
$user = DBA::selectFirst('user', $fields, $condition);
}
@ -395,7 +404,7 @@ class User
*/
public static function generateNewPassword()
{
return ucfirst(Strings::getRandomName(8)) . mt_rand(1000, 9999);
return ucfirst(Strings::getRandomName(8)) . random_int(1000, 9999);
}
/**
@ -671,7 +680,8 @@ class User
}
// Check existing and deleted accounts for this nickname.
if (DBA::exists('user', ['nickname' => $nickname])
if (
DBA::exists('user', ['nickname' => $nickname])
|| DBA::exists('userd', ['username' => $nickname])
) {
throw new Exception(L10n::t('Nickname is already registered. Please choose another.'));
@ -839,7 +849,8 @@ class User
*/
public static function sendRegisterPendingEmail($user, $sitename, $siteurl, $password)
{
$body = Strings::deindent(L10n::t('
$body = Strings::deindent(L10n::t(
'
Dear %1$s,
Thank you for registering at %2$s. Your account is pending for approval by the administrator.
@ -849,7 +860,11 @@ class User
Login Name: %4$s
Password: %5$s
',
$user['username'], $sitename, $siteurl, $user['nickname'], $password
$user['username'],
$sitename,
$siteurl,
$user['nickname'],
$password
));
return notification([
@ -875,13 +890,16 @@ class User
*/
public static function sendRegisterOpenEmail($user, $sitename, $siteurl, $password)
{
$preamble = Strings::deindent(L10n::t('
Dear %1$s,
$preamble = Strings::deindent(L10n::t(
'
Dear %1$s,
Thank you for registering at %2$s. Your account has been created.
',
$user['username'], $sitename
',
$user['username'],
$sitename
));
$body = Strings::deindent(L10n::t('
$body = Strings::deindent(L10n::t(
'
The login details are as follows:
Site Location: %3$s
@ -908,7 +926,11 @@ class User
If you ever want to delete your account, you can do so at %3$s/removeme
Thank you and welcome to %2$s.',
$user['nickname'], $sitename, $siteurl, $user['username'], $password
$user['nickname'],
$sitename,
$siteurl,
$user['username'],
$password
));
return notification([
@ -989,33 +1011,45 @@ class User
if ($user['parent-uid'] == 0) {
// First add our own entry
$identities = [['uid' => $user['uid'],
$identities = [[
'uid' => $user['uid'],
'username' => $user['username'],
'nickname' => $user['nickname']]];
'nickname' => $user['nickname']
]];
// Then add all the children
$r = DBA::select('user', ['uid', 'username', 'nickname'],
['parent-uid' => $user['uid'], 'account_removed' => false]);
$r = DBA::select(
'user',
['uid', 'username', 'nickname'],
['parent-uid' => $user['uid'], 'account_removed' => false]
);
if (DBA::isResult($r)) {
$identities = array_merge($identities, DBA::toArray($r));
}
} else {
// First entry is our parent
$r = DBA::select('user', ['uid', 'username', 'nickname'],
['uid' => $user['parent-uid'], 'account_removed' => false]);
$r = DBA::select(
'user',
['uid', 'username', 'nickname'],
['uid' => $user['parent-uid'], 'account_removed' => false]
);
if (DBA::isResult($r)) {
$identities = DBA::toArray($r);
}
// Then add all siblings
$r = DBA::select('user', ['uid', 'username', 'nickname'],
['parent-uid' => $user['parent-uid'], 'account_removed' => false]);
$r = DBA::select(
'user',
['uid', 'username', 'nickname'],
['parent-uid' => $user['parent-uid'], 'account_removed' => false]
);
if (DBA::isResult($r)) {
$identities = array_merge($identities, DBA::toArray($r));
}
}
$r = DBA::p("SELECT `user`.`uid`, `user`.`username`, `user`.`nickname`
$r = DBA::p(
"SELECT `user`.`uid`, `user`.`username`, `user`.`nickname`
FROM `manage`
INNER JOIN `user` ON `manage`.`mid` = `user`.`uid`
WHERE `user`.`account_removed` = 0 AND `manage`.`uid` = ?",
@ -1061,13 +1095,13 @@ class User
while ($user = DBA::fetch($userStmt)) {
$statistics['total_users']++;
if ((strtotime($user['login_date']) > $halfyear) ||
(strtotime($user['last-item']) > $halfyear)) {
if ((strtotime($user['login_date']) > $halfyear) || (strtotime($user['last-item']) > $halfyear)
) {
$statistics['active_users_halfyear']++;
}
if ((strtotime($user['login_date']) > $month) ||
(strtotime($user['last-item']) > $month)) {
if ((strtotime($user['login_date']) > $month) || (strtotime($user['last-item']) > $month)
) {
$statistics['active_users_monthly']++;
}
}

32
src/Module/Login.php
View file

@ -1,7 +1,9 @@
<?php
/**
* @file src/Module/Login.php
*/
namespace Friendica\Module;
use Exception;
@ -48,10 +50,8 @@ class Login extends BaseModule
// OpenId Login
if (
empty($_POST['password'])
&& (
!empty($_POST['openid_url'])
|| !empty($_POST['username'])
)
&& (!empty($_POST['openid_url'])
|| !empty($_POST['username']))
) {
$openid_url = trim(defaults($_POST, 'openid_url', $_POST['username']));
@ -136,7 +136,9 @@ class Login extends BaseModule
throw new Exception(L10n::t('Login failed.'));
}
} else {
$record = DBA::selectFirst('user', [],
$record = DBA::selectFirst(
'user',
[],
['uid' => User::getIdFromPasswordAuthentication($username, $password)]
);
}
@ -176,7 +178,9 @@ class Login extends BaseModule
$data = json_decode($_COOKIE["Friendica"]);
if (isset($data->uid)) {
$user = DBA::selectFirst('user', [],
$user = DBA::selectFirst(
'user',
[],
[
'uid' => $data->uid,
'blocked' => false,
@ -186,7 +190,13 @@ class Login extends BaseModule
]
);
if (DBA::isResult($user)) {
if ($data->hash != Authentication::getCookieHashForUser($user)) {
// Time safe comparision of the two hashes.
$validSession = hash_equals(
Authentication::getCookieHashForUser($user),
$data->hash
);
if (!$validSession) {
Logger::log("Hash for user " . $data->uid . " doesn't fit.");
Authentication::deleteSession();
$a->internalRedirect();
@ -229,7 +239,9 @@ class Login extends BaseModule
$a->internalRedirect();
}
$user = DBA::selectFirst('user', [],
$user = DBA::selectFirst(
'user',
[],
[
'uid' => $_SESSION['uid'],
'blocked' => false,
@ -312,12 +324,12 @@ class Login extends BaseModule
'$logout' => L10n::t('Logout'),
'$login' => L10n::t('Login'),
'$lname' => ['username', L10n::t('Nickname or Email: ') , '', ''],
'$lname' => ['username', L10n::t('Nickname or Email: '), '', ''],
'$lpassword' => ['password', L10n::t('Password: '), '', ''],
'$lremember' => ['remember', L10n::t('Remember me'), 0, ''],
'$openid' => !$noid,
'$lopenid' => ['openid_url', L10n::t('Or login using OpenID: '),'',''],
'$lopenid' => ['openid_url', L10n::t('Or login using OpenID: '), '', ''],
'$hiddens' => $hiddens,

8
src/Network/FKOAuthDataStore.php
View file

@ -29,7 +29,7 @@ class FKOAuthDataStore extends OAuthDataStore
*/
private static function genToken()
{
return md5(base64_encode(pack('N6', mt_rand(), mt_rand(), mt_rand(), mt_rand(), mt_rand(), uniqid())));
return bin2hex(random_bytes(16));
}
/**
@ -119,7 +119,8 @@ class FKOAuthDataStore extends OAuthDataStore
'secret' => $sec,
'client_id' => $k,
'scope' => 'request',
'expires' => time() + REQUEST_TOKEN_DURATION]
'expires' => time() + REQUEST_TOKEN_DURATION
]
);
if (!$r) {
@ -162,7 +163,8 @@ class FKOAuthDataStore extends OAuthDataStore
'client_id' => $consumer->key,
'scope' => 'access',
'expires' => time() + ACCESS_TOKEN_DURATION,
'uid' => $uverifier]
'uid' => $uverifier
]
);
if ($r) {

258
src/Util/Strings.php
View file

@ -1,4 +1,5 @@
<?php
/**
* @file src/Util/Strings.php
*/
@ -13,13 +14,13 @@ use Friendica\Core\Logger;
*/
class Strings
{
/**
* @brief Generates a pseudo-random string of hexadecimal characters
*
* @param int $size
* @return string
* @throws \Exception
*/
/**
* @brief Generates a pseudo-random string of hexadecimal characters
*
* @param int $size
* @return string
* @throws \Exception
*/
public static function getRandomHex($size = 64)
{
$byte_size = ceil($size / 2);
@ -31,16 +32,16 @@ class Strings
return $return;
}
/**
* Checks, if the given string is a valid hexadecimal code
*
* @param string $hexCode
*
* @return bool
*/
/**
* Checks, if the given string is a valid hexadecimal code
*
* @param string $hexCode
*
* @return bool
*/
public static function isHex($hexCode)
{
return !empty($hexCode) ? @preg_match("/^[a-f0-9]{2,}$/i", $hexCode) && !(strlen($hexCode) & 1) : false;
return !empty($hexCode) ? @preg_match("/^[a-f0-9]{2,}$/i", $hexCode) && !(strlen($hexCode) & 1) : false;
}
/**
@ -62,19 +63,19 @@ class Strings
* @brief Use this on "body" or "content" input where angle chars shouldn't be removed,
* and allow them to be safely displayed.
* @param string $string
*
*
* @return string
*/
public static function escapeHtml($string)
{
return htmlspecialchars($string, ENT_COMPAT, 'UTF-8', false);
return htmlentities($string, ENT_QUOTES | ENT_HTML5, "UTF-8", false);
}
/**
* @brief Generate a string that's random, but usually pronounceable. Used to generate initial passwords
*
*
* @param int $len length
*
*
* @return string
*/
public static function getRandomName($len)
@ -85,40 +86,44 @@ class Strings
$vowels = ['a', 'a', 'ai', 'au', 'e', 'e', 'e', 'ee', 'ea', 'i', 'ie', 'o', 'ou', 'u'];
if (mt_rand(0, 5) == 4) {
if (random_int(0, 5) == 4) {
$vowels[] = 'y';
}
$cons = [
'b', 'bl', 'br',
'c', 'ch', 'cl', 'cr',
'd', 'dr',
'f', 'fl', 'fr',
'g', 'gh', 'gl', 'gr',
'h',
'j',
'k', 'kh', 'kl', 'kr',
'l',
'm',
'n',
'p', 'ph', 'pl', 'pr',
'qu',
'r', 'rh',
's' ,'sc', 'sh', 'sm', 'sp', 'st',
't', 'th', 'tr',
'v',
'w', 'wh',
'x',
'z', 'zh'
];
'b', 'bl', 'br',
'c', 'ch', 'cl', 'cr',
'd', 'dr',
'f', 'fl', 'fr',
'g', 'gh', 'gl', 'gr',
'h',
'j',
'k', 'kh', 'kl', 'kr',
'l',
'm',
'n',
'p', 'ph', 'pl', 'pr',
'qu',
'r', 'rh',
's', 'sc', 'sh', 'sm', 'sp', 'st',
't', 'th', 'tr',
'v',
'w', 'wh',
'x',
'z', 'zh'
];
$midcons = ['ck', 'ct', 'gn', 'ld', 'lf', 'lm', 'lt', 'mb', 'mm', 'mn', 'mp',
'nd', 'ng', 'nk', 'nt', 'rn', 'rp', 'rt'];
$midcons = [
'ck', 'ct', 'gn', 'ld', 'lf', 'lm', 'lt', 'mb', 'mm', 'mn', 'mp',
'nd', 'ng', 'nk', 'nt', 'rn', 'rp', 'rt'
];
$noend = ['bl', 'br', 'cl', 'cr', 'dr', 'fl', 'fr', 'gl', 'gr',
'kh', 'kl', 'kr', 'mn', 'pl', 'pr', 'rh', 'tr', 'qu', 'wh', 'q'];
$noend = [
'bl', 'br', 'cl', 'cr', 'dr', 'fl', 'fr', 'gl', 'gr',
'kh', 'kl', 'kr', 'mn', 'pl', 'pr', 'rh', 'tr', 'qu', 'wh', 'q'
];
$start = mt_rand(0, 2);
$start = random_int(0, 2);
if ($start == 0) {
$table = $vowels;
} else {
@ -127,8 +132,8 @@ class Strings
$word = '';
for ($x = 0; $x < $len; $x ++) {
$r = mt_rand(0, count($table) - 1);
for ($x = 0; $x < $len; $x++) {
$r = random_int(0, count($table) - 1);
$word .= $table[$r];
if ($table == $vowels) {
@ -136,7 +141,6 @@ class Strings
} else {
$table = $vowels;
}
}
$word = substr($word, 0, $len);
@ -152,20 +156,20 @@ class Strings
return $word;
}
/**
* Translate and format the network name of a contact
*
* @param string $network Network name of the contact (e.g. dfrn, rss and so on)
* @param string $url The contact url
*
* @return string Formatted network name
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
*/
/**
* Translate and format the network name of a contact
*
* @param string $network Network name of the contact (e.g. dfrn, rss and so on)
* @param string $url The contact url
*
* @return string Formatted network name
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
*/
public static function formatNetworkName($network, $url = '')
{
if ($network != '') {
if ($url != '') {
$network_name = '<a href="' . $url .'">' . ContactSelector::networkToName($network, $url) . '</a>';
$network_name = '<a href="' . $url . '">' . ContactSelector::networkToName($network, $url) . '</a>';
} else {
$network_name = ContactSelector::networkToName($network);
}
@ -176,11 +180,11 @@ class Strings
/**
* @brief Remove indentation from a text
*
*
* @param string $text String to be transformed.
* @param string $chr Optional. Indentation tag. Default tab (\t).
* @param int $count Optional. Default null.
*
*
* @return string Transformed string.
*/
public static function deindent($text, $chr = "[\t ]", $count = NULL)
@ -206,10 +210,10 @@ class Strings
/**
* @brief Get byte size returned in a Data Measurement (KB, MB, GB)
*
*
* @param int $bytes The number of bytes to be measured
* @param int $precision Optional. Default 2.
*
*
* @return string Size with measured units.
*/
public static function formatBytes($bytes, $precision = 2)
@ -225,9 +229,9 @@ class Strings
/**
* @brief Protect percent characters in sprintf calls
*
*
* @param string $s String to transform.
*
*
* @return string Transformed string.
*/
public static function protectSprintf($s)
@ -237,10 +241,10 @@ class Strings
/**
* @brief Base64 Encode URL and translate +/ to -_ Optionally strip padding.
*
*
* @param string $s URL to encode
* @param boolean $strip_padding Optional. Default false
*
*
* @return string Encoded URL
*/
public static function base64UrlEncode($s, $strip_padding = false)
@ -254,13 +258,13 @@ class Strings
return $s;
}
/**
* @brief Decode Base64 Encoded URL and translate -_ to +/
* @param string $s URL to decode
*
* @return string Decoded URL
* @throws \Exception
*/
/**
* @brief Decode Base64 Encoded URL and translate -_ to +/
* @param string $s URL to decode
*
* @return string Decoded URL
* @throws \Exception
*/
public static function base64UrlDecode($s)
{
if (is_array($s)) {
@ -291,7 +295,7 @@ class Strings
* @brief Normalize url
*
* @param string $url URL to be normalized.
*
*
* @return string Normalized URL.
*/
public static function normaliseLink($url)
@ -302,9 +306,9 @@ class Strings
/**
* @brief Normalize OpenID identity
*
*
* @param string $s OpenID Identity
*
*
* @return string normalized OpenId Identity
*/
public static function normaliseOpenID($s)
@ -329,51 +333,51 @@ class Strings
}
/**
* Ensures the provided URI has its query string punctuation in order.
*
* @param string $uri
* @return string
*/
public static function ensureQueryParameter($uri)
{
if (strpos($uri, '?') === false && ($pos = strpos($uri, '&')) !== false) {
$uri = substr($uri, 0, $pos) . '?' . substr($uri, $pos + 1);
}
/**
* Ensures the provided URI has its query string punctuation in order.
*
* @param string $uri
* @return string
*/
public static function ensureQueryParameter($uri)
{
if (strpos($uri, '?') === false && ($pos = strpos($uri, '&')) !== false) {
$uri = substr($uri, 0, $pos) . '?' . substr($uri, $pos + 1);
}
return $uri;
}
return $uri;
}
/**
* Check if the trimmed provided string is starting with one of the provided characters
*
* @param string $string
* @param array $chars
* @return bool
*/
public static function startsWith($string, array $chars)
{
$return = in_array(substr(trim($string), 0, 1), $chars);
/**
* Check if the trimmed provided string is starting with one of the provided characters
*
* @param string $string
* @param array $chars
* @return bool
*/
public static function startsWith($string, array $chars)
{
$return = in_array(substr(trim($string), 0, 1), $chars);
return $return;
}
return $return;
}
/**
* Returns the regular expression string to match URLs in a given text
*
* @return string
* @see https://daringfireball.net/2010/07/improved_regex_for_matching_urls
*/
public static function autoLinkRegEx()
{
return '@
/**
* Returns the regular expression string to match URLs in a given text
*
* @return string
* @see https://daringfireball.net/2010/07/improved_regex_for_matching_urls
*/
public static function autoLinkRegEx()
{
return '@
(?<![=\'\]"/]) # Not preceded by [, =, \', ], ", /
\b
( # Capture 1: entire matched URL
https?:// # http or https protocol
(?:
[^/\s\xA0`!()\[\]{};:\'",<>?«»“”‘’.] # Domain can\'t start with a .
[^/\s\xA0`!()\[\]{};:\'",<>?«»“”‘’.] # Domain can\'t start with a .
[^/\s\xA0`!()\[\]{};:\'",<>?«»“”‘’]+ # Domain can\'t end with a .
\.
[^/\s\xA0`!()\[\]{};:\'".,<>?«»“”‘’]+/? # Followed by a slash
@ -386,21 +390,21 @@ class Strings
[^\s\xA0`!()\[\]{};:\'".,<>?«»“”‘’] # not a space or one of these punct chars
)*
)@xiu';
}
}
/**
* Ensures a single path item doesn't contain any path-traversing characters
*
* @see https://stackoverflow.com/a/46097713
* @param string $pathItem
* @return string
*/
public static function sanitizeFilePathItem($pathItem)
{
$pathItem = str_replace('/', '_', $pathItem);
$pathItem = str_replace('\\', '_', $pathItem);
$pathItem = str_replace(DIRECTORY_SEPARATOR, '_', $pathItem); // In case it does not equal the standard values
/**
* Ensures a single path item doesn't contain any path-traversing characters
*
* @see https://stackoverflow.com/a/46097713
* @param string $pathItem
* @return string
*/
public static function sanitizeFilePathItem($pathItem)
{
$pathItem = str_replace('/', '_', $pathItem);
$pathItem = str_replace('\\', '_', $pathItem);
$pathItem = str_replace(DIRECTORY_SEPARATOR, '_', $pathItem); // In case it does not equal the standard values
return $pathItem;
}
return $pathItem;
}
}