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clean up redundacies + path traversal protection

This commit is contained in:
Joshua P Panter 2018-01-26 09:41:45 -05:00
parent 01648de510
commit c86a4dfd28
1 changed files with 58 additions and 91 deletions
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149
.well-known/webfinger/index.php
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@ -2,7 +2,7 @@
/*
------------------------------------------------------------
* *
* PEWS (pew! pew!) - PHP Easy WebFinger Server 1.5.1 *
* PEWS (pew! pew!) - PHP Easy WebFinger Server 1.5.2 *
* *
* This script enables webfinger support on a server that *
* handles one or more domains. *
@ -160,21 +160,9 @@ if ($req === 'GET') {
die();
}
function pews_auth( $acct, $key, $admin ) {
if(strpos($acct, '@')) {
$acct = explode('@', $acct);
$user = preg_replace('/^((\.*)(\/*))*/', '', $acct[0]);
$host = preg_replace('/^((\.*)(\/*))*/', '', $acct[1]);
if(!$admin && $host !== $_SERVER['HTTP_HOST']) {
$return['is'] = false;
$return['info'] = 'This is not your account';
return $return;
}
} else {
$user = preg_replace('/^((\.*)(\/*))*/', '', $acct);
$host = $_SERVER['HTTP_HOST'];
}
$acct_file = PEWS_DATA_STORE."/".$host."/".$user.".json";
function pews_auth( $resource, $key, $admin ) {
$resource = pews_parse_account_string( $resource );
$acct_file = PEWS_DATA_STORE ."/". $resource['host'] . "/" . $resource['user'].".json";
// is there an account on file?
if(file_exists($acct_file)) {
$data = json_decode(file_get_contents($acct_file), true);
@ -247,8 +235,8 @@ function pews_manager( $auth, $password ) {
// add a new host to the server TODO url validations, etc
if(isset($_POST['addHost'])) {
if($auth) {
$host = $_POST['addHost'];
$new = PEWS_DATA_STORE . '/' . $host;
$resource = pews_parse_account_string( $_POST['addHost'] );
$new = PEWS_DATA_STORE . '/' . $resource['host'];
if (!file_exists($new)){
$make = mkdir($new);
if(!$make) {
@ -259,7 +247,7 @@ function pews_manager( $auth, $password ) {
chmod( $new, 0755 );
http_response_code(201);
$return['statusCode'] = 201;
$return['message'] = 'host: '.$host.' successfully added';
$return['message'] = 'host: '. $resource['host'] .' successfully added';
}
} else {
http_response_code(200);
@ -274,8 +262,8 @@ function pews_manager( $auth, $password ) {
// delete a host AND all resources
} elseif(isset($_POST['delHost'])) {
if($auth) {
$host = $_POST['delHost'];
$old = PEWS_DATA_STORE . '/' . $host;
$resource = pews_parse_account_string( $_POST['delHost'] );
$old = PEWS_DATA_STORE . '/' . $resource['host'];
if (file_exists($old)) {
$files = glob($old.'/*');
foreach($files as $file) {
@ -290,7 +278,7 @@ function pews_manager( $auth, $password ) {
} else {
http_response_code(200);
$return['statusCode'] = 200;
$return['message'] = 'host: '.$host.' successfully removed';
$return['message'] = 'host: '.$resource['host'].' successfully removed';
}
} else {
http_response_code(200);
@ -305,30 +293,21 @@ function pews_manager( $auth, $password ) {
// Add a new resource account!
} elseif(isset($_POST['addResource'])) {
if($auth) {
$acct = $_POST['addResource'];
if(strpos($acct, '@')) {
$part = explode('@', $acct);
$user = preg_replace('/^((\.*)(\/*))*/', '', $part[0]);
$host = preg_replace('/^((\.*)(\/*))*/', '', $part[1]);
} else {
$user = preg_replace('/^((\.*)(\/*))*/', '', $acct);
$host = $_SERVER['HTTP_HOST'];
$acct = $user.'@'.$host;
}
$newHost = PEWS_DATA_STORE . '/' . $host;
$resource = pews_parse_account_string( $_POST['addResource'] );
$newHost = PEWS_DATA_STORE . '/' . $resource['host'];
if (!file_exists($newHost)){
http_response_code(404);
$response['statusCode'] = ['404'];
$response['message'] = ['Host '.$host.' is not present on this system. Create that first, then add resource accounts to it.'];
$response['statusCode'] = '404';
$response['message'] = 'The host '. $resource['host'] .' is not present, and must be on this system before resource accounts are added to it.';
} else {
$newUser = $newHost.'/'.$user.'.json';
$newUser = $newHost .'/'. $resource['user'] .'.json';
if (!file_exists($newUser)){
$class = isset($_POST['setClass']) && ($_POST['setClass'] === 'admin' || $_POST['setClass'] === 'user') ?
$_POST['setClass'] :
'user';
$pass= isset($_POST['setPass']) ? 'pews-hashed:'.password_hash($_POST['setPass'], PASSWORD_DEFAULT) : 'pewpewpassword';
$data['PEWS'] = array( 'class' => $class, 'pass' => $pass );
$data['subject'] = 'acct:'.$acct;
$data['subject'] = 'acct:'. $resource['acct'];
if(isset($_POST['setAliases'])) {
$aliases = $_POST['setAliases'];
$data['aliases'] = is_array($aliases) ? $aliases : array($aliases);
@ -374,7 +353,7 @@ function pews_manager( $auth, $password ) {
chmod( $newUser, 0755 );
http_response_code(201);
$return['statusCode'] = 201;
$return['message'] = 'Resource: '.$acct.' successfully added';
$return['message'] = 'Resource: '.$resource['acct'].' successfully added';
}
} else {
http_response_code(200);
@ -390,17 +369,8 @@ function pews_manager( $auth, $password ) {
// Remove a resource/account from the server
} elseif(isset($_POST['delResource'])) {
if($auth) {
$acct = $_POST['delResource'];
if(strpos($acct, '@')) {
$part = explode('@', $acct);
$user = preg_replace('/^((\.*)(\/*))*/', '', $part[0]);
$host = preg_replace('/^((\.*)(\/*))*/', '', $part[1]);
} else {
$user = preg_replace('/^((\.*)(\/*))*/', '', $acct);
$host = $_SERVER['HTTP_HOST'];
$acct = $user.'@'.$host;
}
$acct_file = PEWS_DATA_STORE."/".$host."/".$user.".json";
$resource = pews_parse_account_string( $_POST['delResource'] );
$acct_file = PEWS_DATA_STORE ."/". $resource['host'] ."/". $resource['user'] .".json";
if (file_exists($acct_file)) {
$destroy = unlink($acct_file);
if(!$destroy) {
@ -410,7 +380,7 @@ function pews_manager( $auth, $password ) {
} else {
http_response_code(200);
$return['statusCode'] = 200;
$return['message'] = 'Acct: '.$acct.' successfully removed';
$return['message'] = 'Acct: '. $resource['acct'] .' successfully removed';
}
} else {
http_response_code(200);
@ -424,24 +394,15 @@ function pews_manager( $auth, $password ) {
return $return;
// adding an alias to a resource
} elseif(isset($_POST['addAlias'])) {
$acct = $_POST['addAlias'];
if(strpos($acct, '@')) {
$part = explode('@', $acct);
$user = preg_replace('/^((\.*)(\/*))*/', '', $part[0]);
$host = preg_replace('/^((\.*)(\/*))*/', '', $part[1]);
} else {
$user = preg_replace('/^((\.*)(\/*))*/', '', $acct);
$host = $_SERVER['HTTP_HOST'];
$acct = $user.'@'.$host;
}
$resource = pews_parse_account_string( $_POST['addAlias'] );
switch ($auth) {
case false:
$reauth = pews_auth( $acct, $password, false );
$reauth = pews_auth( $resource['acct'], $password, false );
$auth = $reauth['is'];
case true:
if(isset($_POST['newAlias'])) {
$newAlias = $_POST['newAlias'];
$acct_file = PEWS_DATA_STORE . '/' . $host .'/'. $user . '.json';
$acct_file = PEWS_DATA_STORE . '/' . $resource['host'] .'/'. $resource['user'] . '.json';
if (file_exists($acct_file)) {
$data = json_decode(file_get_contents($acct_file), true);
$aliases = isset($data['aliases']) ? $data['aliases'] : array();
@ -454,12 +415,12 @@ function pews_manager( $auth, $password ) {
$return['info'] = 'Could not write to resource file';
} else {
$return['is'] = true;
$return['info'] = 'Alias: '.$newAlias.' added to '.$acct;
$return['info'] = 'Alias: '.$newAlias.' added to '.$resource['acct'];
}
} else {
http_response_code(404);
$return['statusCode'] = 404;
$return['message'] = 'Account ['.$acct.'] not found.';
$return['message'] = 'Account: '.$resource['acct'].' not found.';
}
} else {
http_response_code(400);
@ -475,24 +436,15 @@ function pews_manager( $auth, $password ) {
}
// remove an alias from a resource
} elseif(isset($_POST['delAlias'])) {
$acct = $_POST['delAlias'];
if(strpos($acct, '@')) {
$part = explode('@', $acct);
$user = preg_replace('/^((\.*)(\/*))*/', '', $part[0]);
$host = preg_replace('/^((\.*)(\/*))*/', '', $part[1]);
} else {
$user = preg_replace('/^((\.*)(\/*))*/', '', $acct);
$host = $_SERVER['HTTP_HOST'];
$acct = $user.'@'.$host;
}
$resource = pews_parse_account_string( $_POST['delAlias'] );
switch ($auth) {
case false:
$reauth = pews_auth( $acct, $password, false );
$reauth = pews_auth( $resource['acct'], $password, false );
$auth = $reauth['is'];
case true:
if(isset($_POST['oldAlias'])) {
$oldAlias = $_POST['oldAlias'];
$acct_file = PEWS_DATA_STORE . '/' . $host .'/'. $user . '.json';
$acct_file = PEWS_DATA_STORE . '/' . $resource['host'] .'/'. $resource['user'] . '.json';
if (file_exists($acct_file)) {
$data = json_decode(file_get_contents($acct_file), true);
$aliases = isset($data['aliases']) ? $data['aliases'] : null;
@ -512,7 +464,7 @@ function pews_manager( $auth, $password ) {
$return['info'] = 'Could not write to resource file';
} else {
$return['is'] = true;
$return['info'] = 'Alias: '.$oldAlias.' removed '.$acct;
$return['info'] = 'Alias: '.$oldAlias.' removed '.$resource['acct'];
}
} else {
http_response_code(100);
@ -522,7 +474,7 @@ function pews_manager( $auth, $password ) {
} else {
http_response_code(404);
$return['statusCode'] = 404;
$return['message'] = 'Account ['.$acct.'] not found.';
$return['message'] = 'Account: '.$resource['acct'].' not found.';
}
} else {
http_response_code(400);
@ -549,24 +501,15 @@ function pews_manager( $auth, $password ) {
} elseif(isset($_POST['delLink'])) {
// Update a Password
} elseif(isset($_POST['updatePass'])) {
$acct = $_POST['updatePass'];
if(strpos($acct, '@')) {
$part = explode('@', $acct);
$user = preg_replace('/^((\.*)(\/*))*/', '', $part[0]);
$host = preg_replace('/^((\.*)(\/*))*/', '', $part[1]);
} else {
$user = preg_replace('/^((\.*)(\/*))*/', '', $acct);
$host = $_SERVER['HTTP_HOST'];
$acct = $user.'@'.$host;
}
$resource = pews_parse_account_string( $_POST['updatePass'] );
switch ($auth) {
case false:
$reauth = pews_auth( $acct, $password, false );
$reauth = pews_auth( $resource['acct'], $password, false );
$auth = $reauth['is'];
case true:
if(isset($_POST['newPass'])) {
$newPass = $_POST['newPass'];
$acct_file = PEWS_DATA_STORE . '/' . $host .'/'. $user . '.json';
$acct_file = PEWS_DATA_STORE .'/'. $resource['host'] .'/'. $resource['user'] .'.json';
if (file_exists($acct_file)) {
$data = json_decode(file_get_contents($acct_file), true);
$userData = $data['PEWS'];
@ -585,7 +528,7 @@ function pews_manager( $auth, $password ) {
} else {
http_response_code(404);
$return['statusCode'] = 404;
$return['message'] = 'Account ['.$acct.'] not found.';
$return['message'] = 'Account ['. $resource['acct'] .'] not found.';
}
} else {
http_response_code(400);
@ -606,4 +549,28 @@ function pews_manager( $auth, $password ) {
}
return $return;
}
function pews_parse_account_string ( $acct ) {
if(strpos($acct, '@')) {
$parts = explode('@', $acct[1]);
$user = preg_replace('/^((\.*)(\/*))*/', '', $parts[0]);
$host = preg_replace('/^((\.*)(\/*))*/', '', $parts[1]);
// if(PEWS_DOMAIN_STRICT && $host !== $_SERVER['HTTP_HOST']) {
// http_response_code(400);
// header("Content-Type: application/json");
// print json_encode(array(
// 'statusCode' => 400,
// 'message' => "Query and server hosts do not match."
// ), JSON_UNESCAPED_SLASHES);
// die();
// }
} else {
$user = preg_replace('/^((\.*)(\/*))*/', '', $str);
$host = $_SERVER['HTTP_HOST'];
$acct = $user . '@' . $host;
}
$return['user'] = $user;
$return['host'] = $host;
$return['acct'] = $acct;
return $return;
}
?>