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raspap-webgui/includes/webconsole.php

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<?php
require_once 'config.php';
require_once RASPI_CONFIG.'/raspap.php';
session_start();
header('X-Frame-Options: SAMEORIGIN');
header("Content-Security-Policy: default-src 'none'; frame-src 'self'; connect-src 'self'; script-src 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline'");
require_once 'authenticate.php';
// Web Console v0.9.7 (2016-11-05)
//
// Author: Nickolay Kovalev (http://nickola.ru)
// GitHub: https://github.com/nickola/web-console
// URL: http://web-console.org
// Disable login (don't ask for credentials, be careful)
// Example: $NO_LOGIN = true;
$NO_LOGIN = true;
// Single-user credentials
// Example: $USER = 'user'; $PASSWORD = 'password';
$USER = '';
$PASSWORD = '';
// Multi-user credentials
// Example: $ACCOUNTS = array('user1' => 'password1', 'user2' => 'password2');
$ACCOUNTS = array();
// Password hash algorithm (password must be hashed)
// Example: $PASSWORD_HASH_ALGORITHM = 'md5';
// $PASSWORD_HASH_ALGORITHM = 'sha256';
$PASSWORD_HASH_ALGORITHM = '';
// Home directory (multi-user mode supported)
// Example: $HOME_DIRECTORY = '/tmp';
// $HOME_DIRECTORY = array('user1' => '/home/user1', 'user2' => '/home/user2');
$HOME_DIRECTORY = '';
// Code below is automatically generated from different components
// For more information see: https://github.com/nickola/web-console
//
// Used components:
// - jQuery JavaScript Library: https://github.com/jquery/jquery
// - jQuery Terminal Emulator: https://github.com/jcubic/jquery.terminal
// - jQuery Mouse Wheel Plugin: https://github.com/brandonaaron/jquery-mousewheel
// - PHP JSON-RPC 2.0 Server/Client Implementation: https://github.com/sergeyfast/eazy-jsonrpc
// - Normalize.css: https://github.com/necolas/normalize.css
?>
<?php
/**
* JSON RPC Server for Eaze
*
* Reads $_GET['rawRequest'] or php://input for Request Data
* @link http://www.jsonrpc.org/specification
* @link http://dojotoolkit.org/reference-guide/1.8/dojox/rpc/smd.html
* @package Eaze
* @subpackage Model
* @author Sergeyfast
*/
class BaseJsonRpcServer {
const ParseError = -32700,
InvalidRequest = -32600,
MethodNotFound = -32601,
InvalidParams = -32602,
InternalError = -32603;
/**
* Exposed Instances
* @var object[] namespace => method
*/
protected $instances = array();
/**
* Decoded Json Request
* @var object|array
*/
protected $request;
/**
* Array of Received Calls
* @var array
*/
protected $calls = array();
/**
* Array of Responses for Calls
* @var array
*/
protected $response = array();
/**
* Has Calls Flag (not notifications)
* @var bool
*/
protected $hasCalls = false;
/**
* Is Batch Call in using
* @var bool
*/
private $isBatchCall = false;
/**
* Hidden Methods
* @var array
*/
protected $hiddenMethods = array(
'execute', '__construct', 'registerinstance'
);
/**
* Content Type
* @var string
*/
public $ContentType = 'application/json';
/**
* Allow Cross-Domain Requests
* @var bool
*/
public $IsXDR = true;
/**
* Max Batch Calls
* @var int
*/
public $MaxBatchCalls = 10;
/**
* Error Messages
* @var array
*/
protected $errorMessages = array(
self::ParseError => 'Parse error',
self::InvalidRequest => 'Invalid Request',
self::MethodNotFound => 'Method not found',
self::InvalidParams => 'Invalid params',
self::InternalError => 'Internal error',
);
/**
* Cached Reflection Methods
* @var ReflectionMethod[]
*/
private $reflectionMethods = array();
/**
* Validate Request
* @return int error
*/
private function getRequest() {
$error = null;
do {
if ( array_key_exists( 'REQUEST_METHOD', $_SERVER ) && $_SERVER['REQUEST_METHOD'] != 'POST' ) {
$error = self::InvalidRequest;
break;
};
$request = !empty( $_GET['rawRequest'] ) ? $_GET['rawRequest'] : file_get_contents( 'php://input' );
$this->request = json_decode( $request, false );
if ( $this->request === null ) {
$error = self::ParseError;
break;
}
if ( $this->request === array() ) {
$error = self::InvalidRequest;
break;
}
// check for batch call
if ( is_array( $this->request ) ) {
if( count( $this->request ) > $this->MaxBatchCalls ) {
$error = self::InvalidRequest;
break;
}
$this->calls = $this->request;
$this->isBatchCall = true;
} else {
$this->calls[] = $this->request;
}
} while ( false );
return $error;
}
/**
* Get Error Response
* @param int $code
* @param mixed $id
* @param null $data
* @return array
*/
private function getError( $code, $id = null, $data = null ) {
return array(
'jsonrpc' => '2.0',
'id' => $id,
'error' => array(
'code' => $code,
'message' => isset( $this->errorMessages[$code] ) ? $this->errorMessages[$code] : $this->errorMessages[self::InternalError],
'data' => $data,
),
);
}
/**
* Check for jsonrpc version and correct method
* @param object $call
* @return array|null
*/
private function validateCall( $call ) {
$result = null;
$error = null;
$data = null;
$id = is_object( $call ) && property_exists( $call, 'id' ) ? $call->id : null;
do {
if ( !is_object( $call ) ) {
$error = self::InvalidRequest;
break;
}
// hack for inputEx smd tester
if ( property_exists( $call, 'version' ) ) {
if ( $call->version == 'json-rpc-2.0' ) {
$call->jsonrpc = '2.0';
}
}
if ( !property_exists( $call, 'jsonrpc' ) || $call->jsonrpc != '2.0' ) {
$error = self::InvalidRequest;
break;
}
$fullMethod = property_exists( $call, 'method' ) ? $call->method : '';
$methodInfo = explode( '.', $fullMethod, 2 );
$namespace = array_key_exists( 1, $methodInfo ) ? $methodInfo[0] : '';
$method = $namespace ? $methodInfo[1] : $fullMethod;
if ( !$method || !array_key_exists( $namespace, $this->instances ) || !method_exists( $this->instances[$namespace], $method ) || in_array( strtolower( $method ), $this->hiddenMethods ) ) {
$error = self::MethodNotFound;
break;
}
if ( !array_key_exists( $fullMethod, $this->reflectionMethods ) ) {
$this->reflectionMethods[$fullMethod] = new ReflectionMethod( $this->instances[$namespace], $method );
}
/** @var $params array */
$params = property_exists( $call, 'params' ) ? $call->params : null;
$paramsType = gettype( $params );
if ( $params !== null && $paramsType != 'array' && $paramsType != 'object' ) {
$error = self::InvalidParams;
break;
}
// check parameters
switch ( $paramsType ) {
case 'array':
$totalRequired = 0;
// doesn't hold required, null, required sequence of params
foreach ( $this->reflectionMethods[$fullMethod]->getParameters() as $param ) {
if ( !$param->isDefaultValueAvailable() ) {
$totalRequired++;
}
}
if ( count( $params ) < $totalRequired ) {
$error = self::InvalidParams;
$data = sprintf( 'Check numbers of required params (got %d, expected %d)', count( $params ), $totalRequired );
}
break;
case 'object':
foreach ( $this->reflectionMethods[$fullMethod]->getParameters() as $param ) {
if ( !$param->isDefaultValueAvailable() && !array_key_exists( $param->getName(), $params ) ) {
$error = self::InvalidParams;
$data = $param->getName() . ' not found';
break 3;
}
}
break;
case 'NULL':
if ( $this->reflectionMethods[$fullMethod]->getNumberOfRequiredParameters() > 0 ) {
$error = self::InvalidParams;
$data = 'Empty required params';
break 2;
}
break;
}
} while ( false );
if ( $error ) {
$result = array( $error, $id, $data );
}
return $result;
}
/**
* Process Call
* @param $call
* @return array|null
*/
private function processCall( $call ) {
$id = property_exists( $call, 'id' ) ? $call->id : null;
$params = property_exists( $call, 'params' ) ? $call->params : array();
$result = null;
$namespace = substr( $call->method, 0, strpos( $call->method, '.' ) );
try {
// set named parameters
if ( is_object( $params ) ) {
$newParams = array();
foreach ( $this->reflectionMethods[$call->method]->getParameters() as $param ) {
$paramName = $param->getName();
$defaultValue = $param->isDefaultValueAvailable() ? $param->getDefaultValue() : null;
$newParams[] = property_exists( $params, $paramName ) ? $params->$paramName : $defaultValue;
}
$params = $newParams;
}
// invoke
$result = $this->reflectionMethods[$call->method]->invokeArgs( $this->instances[$namespace], $params );
} catch ( Exception $e ) {
return $this->getError( $e->getCode(), $id, $e->getMessage() );
}
if ( !$id && $id !== 0 ) {
return null;
}
return array(
'jsonrpc' => '2.0',
'result' => $result,
'id' => $id,
);
}
/**
* Create new Instance
* @param object $instance
*/
public function __construct( $instance = null ) {
if ( get_parent_class( $this ) ) {
$this->RegisterInstance( $this, '' );
} else if ( $instance ) {
$this->RegisterInstance( $instance, '' );
}
}
/**
* Register Instance
* @param object $instance
* @param string $namespace default is empty string
* @return $this
*/
public function RegisterInstance( $instance, $namespace = '' ) {
$this->instances[$namespace] = $instance;
$this->instances[$namespace]->errorMessages = $this->errorMessages;
return $this;
}
/**
* Handle Requests
*/
public function Execute() {
do {
// check for SMD Discovery request
if ( array_key_exists( 'smd', $_GET ) ) {
$this->response[] = $this->getServiceMap();
$this->hasCalls = true;
break;
}
$error = $this->getRequest();
if ( $error ) {
$this->response[] = $this->getError( $error );
$this->hasCalls = true;
break;
}
foreach ( $this->calls as $call ) {
$error = $this->validateCall( $call );
if ( $error ) {
$this->response[] = $this->getError( $error[0], $error[1], $error[2] );
$this->hasCalls = true;
} else {
$result = $this->processCall( $call );
if ( $result ) {
$this->response[] = $result;
$this->hasCalls = true;
}
}
}
} while ( false );
// flush response
if ( $this->hasCalls ) {
if ( !$this->isBatchCall ) {
$this->response = reset( $this->response );
}
if ( !headers_sent() ) {
// Set Content Type
if ( $this->ContentType ) {
header( 'Content-Type: ' . $this->ContentType );
}
// Allow Cross Domain Requests
if ( $this->IsXDR ) {
header( 'Access-Control-Allow-Origin: *' );
header( 'Access-Control-Allow-Headers: x-requested-with, content-type' );
}
}
echo json_encode( $this->response );
$this->resetVars();
}
}
/**
* Get Doc Comment
* @param $comment
* @return string|null
*/
private function getDocDescription( $comment ) {
$result = null;
if ( preg_match( '/\*\s+([^@]*)\s+/s', $comment, $matches ) ) {
$result = str_replace( '*', "\n", trim( trim( $matches[1], '*' ) ) );
}
return $result;
}
/**
* Get Service Map
* Maybe not so good realization of auto-discover via doc blocks
* @return array
*/
private function getServiceMap() {
$result = array(
'transport' => 'POST',
'envelope' => 'JSON-RPC-2.0',
'SMDVersion' => '2.0',
'contentType' => 'application/json',
'target' => !empty( $_SERVER['REQUEST_URI'] ) ? substr( $_SERVER['REQUEST_URI'], 0, strpos( $_SERVER['REQUEST_URI'], '?' ) ) : '',
'services' => array(),
'description' => '',
);
foreach( $this->instances as $namespace => $instance ) {
$rc = new ReflectionClass( $instance);
// Get Class Description
if ( $rcDocComment = $this->getDocDescription( $rc->getDocComment() ) ) {
$result['description'] .= $rcDocComment . PHP_EOL;
}
foreach ( $rc->getMethods() as $method ) {
/** @var ReflectionMethod $method */
if ( !$method->isPublic() || in_array( strtolower( $method->getName() ), $this->hiddenMethods ) ) {
continue;
}
$methodName = ( $namespace ? $namespace . '.' : '' ) . $method->getName();
$docComment = $method->getDocComment();
$result['services'][$methodName] = array( 'parameters' => array() );
// set description
if ( $rmDocComment = $this->getDocDescription( $docComment ) ) {
$result['services'][$methodName]['description'] = $rmDocComment;
}
// @param\s+([^\s]*)\s+([^\s]*)\s*([^\s\*]*)
$parsedParams = array();
if ( preg_match_all( '/@param\s+([^\s]*)\s+([^\s]*)\s*([^\n\*]*)/', $docComment, $matches ) ) {
foreach ( $matches[2] as $number => $name ) {
$type = $matches[1][$number];
$desc = $matches[3][$number];
$name = trim( $name, '$' );
$param = array( 'type' => $type, 'description' => $desc );
$parsedParams[$name] = array_filter( $param );
}
};
// process params
foreach ( $method->getParameters() as $parameter ) {
$name = $parameter->getName();
$param = array( 'name' => $name, 'optional' => $parameter->isDefaultValueAvailable() );
if ( array_key_exists( $name, $parsedParams ) ) {
$param += $parsedParams[$name];
}
if ( $param['optional'] ) {
$param['default'] = $parameter->getDefaultValue();
}
$result['services'][$methodName]['parameters'][] = $param;
}
// set return type
if ( preg_match( '/@return\s+([^\s]+)\s*([^\n\*]+)/', $docComment, $matches ) ) {
$returns = array( 'type' => $matches[1], 'description' => trim( $matches[2] ) );
$result['services'][$methodName]['returns'] = array_filter( $returns );
}
}
}
return $result;
}
/**
* Reset Local Class Vars after Execute
*/
private function resetVars() {
$this->response = $this->calls = array();
$this->hasCalls = $this->isBatchCall = false;
}
}
?>
<?php
// Initializing
if (!isset($NO_LOGIN)) $NO_LOGIN = false;
if (!isset($ACCOUNTS)) $ACCOUNTS = array();
if (isset($USER) && isset($PASSWORD) && $USER && $PASSWORD) $ACCOUNTS[$USER] = $PASSWORD;
if (!isset($PASSWORD_HASH_ALGORITHM)) $PASSWORD_HASH_ALGORITHM = '';
if (!isset($HOME_DIRECTORY)) $HOME_DIRECTORY = '';
$IS_CONFIGURED = ($NO_LOGIN || count($ACCOUNTS) >= 1) ? true : false;
// Utilities
function is_empty_string($string) {
return strlen($string) <= 0;
}
function is_equal_strings($string1, $string2) {
return strcmp($string1, $string2) == 0;
}
function get_hash($algorithm, $string) {
return hash($algorithm, trim((string) $string));
}
// Command execution
function execute_command($command) {
$descriptors = array(
0 => array('pipe', 'r'), // STDIN
1 => array('pipe', 'w'), // STDOUT
2 => array('pipe', 'w') // STDERR
);
$process = proc_open($command . ' 2>&1', $descriptors, $pipes);
if (!is_resource($process)) die("Can't execute command.");
// Nothing to push to STDIN
fclose($pipes[0]);
$output = stream_get_contents($pipes[1]);
fclose($pipes[1]);
$error = stream_get_contents($pipes[2]);
fclose($pipes[2]);
// All pipes must be closed before "proc_close"
$code = proc_close($process);
return $output;
}
// Command parsing
function parse_command($command) {
$value = ltrim((string) $command);
if (!is_empty_string($value)) {
$values = explode(' ', $value);
$values_total = count($values);
if ($values_total > 1) {
$value = $values[$values_total - 1];
for ($index = $values_total - 2; $index >= 0; $index--) {
$value_item = $values[$index];
if (substr($value_item, -1) == '\\') $value = $value_item . ' ' . $value;
else break;
}
}
}
return $value;
}
// RPC Server
class WebConsoleRPCServer extends BaseJsonRpcServer {
protected $home_directory = '';
private function error($message) {
throw new Exception($message);
}
// Authentication
private function authenticate_user($user, $password) {
$user = trim((string) $user);
$password = trim((string) $password);
if ($user && $password) {
global $ACCOUNTS, $PASSWORD_HASH_ALGORITHM;
if (isset($ACCOUNTS[$user]) && !is_empty_string($ACCOUNTS[$user])) {
if ($PASSWORD_HASH_ALGORITHM) $password = get_hash($PASSWORD_HASH_ALGORITHM, $password);
if (is_equal_strings($password, $ACCOUNTS[$user]))
return $user . ':' . get_hash('sha256', $password);
}
}
throw new Exception("Incorrect user or password");
}
private function authenticate_token($token) {
global $NO_LOGIN;
if ($NO_LOGIN) return true;
$token = trim((string) $token);
$token_parts = explode(':', $token, 2);
if (count($token_parts) == 2) {
$user = trim((string) $token_parts[0]);
$password_hash = trim((string) $token_parts[1]);
if ($user && $password_hash) {
global $ACCOUNTS;
if (isset($ACCOUNTS[$user]) && !is_empty_string($ACCOUNTS[$user])) {
$real_password_hash = get_hash('sha256', $ACCOUNTS[$user]);
if (is_equal_strings($password_hash, $real_password_hash)) return $user;
}
}
}
throw new Exception("Incorrect user or password");
}
private function get_home_directory($user) {
global $HOME_DIRECTORY;
if (is_string($HOME_DIRECTORY)) {
if (!is_empty_string($HOME_DIRECTORY)) return $HOME_DIRECTORY;
}
else if (is_string($user) && !is_empty_string($user) && isset($HOME_DIRECTORY[$user]) && !is_empty_string($HOME_DIRECTORY[$user]))
return $HOME_DIRECTORY[$user];
return getcwd();
}
// Environment
private function get_environment() {
$hostname = function_exists('gethostname') ? gethostname() : null;
return array('path' => getcwd(), 'hostname' => $hostname);
}
private function set_environment($environment) {
$environment = !empty($environment) ? (array) $environment : array();
$path = (isset($environment['path']) && !is_empty_string($environment['path'])) ? $environment['path'] : $this->home_directory;
if (!is_empty_string($path)) {
if (is_dir($path)) {
if (!@chdir($path)) return array('output' => "Unable to change directory to current working directory, updating current directory",
'environment' => $this->get_environment());
}
else return array('output' => "Current working directory not found, updating current directory",
'environment' => $this->get_environment());
}
}
// Initialization
private function initialize($token, $environment) {
$user = $this->authenticate_token($token);
$this->home_directory = $this->get_home_directory($user);
$result = $this->set_environment($environment);
if ($result) return $result;
}
// Methods
public function login($user, $password) {
$result = array('token' => $this->authenticate_user($user, $password),
'environment' => $this->get_environment());
$home_directory = $this->get_home_directory($user);
if (!is_empty_string($home_directory)) {
if (is_dir($home_directory)) $result['environment']['path'] = $home_directory;
else $result['output'] = "Home directory not found: ". $home_directory;
}
return $result;
}
public function cd($token, $environment, $path) {
$result = $this->initialize($token, $environment);
if ($result) return $result;
$path = trim((string) $path);
if (is_empty_string($path)) $path = $this->home_directory;
if (!is_empty_string($path)) {
if (is_dir($path)) {
if (!@chdir($path)) return array('output' => "cd: ". $path . ": Unable to change directory");
}
else return array('output' => "cd: ". $path . ": No such directory");
}
return array('environment' => $this->get_environment());
}
public function completion($token, $environment, $pattern, $command) {
$result = $this->initialize($token, $environment);
if ($result) return $result;
$scan_path = '';
$completion_prefix = '';
$completion = array();
if (!empty($pattern)) {
if (!is_dir($pattern)) {
$pattern = dirname($pattern);
if ($pattern == '.') $pattern = '';
}
if (!empty($pattern)) {
if (is_dir($pattern)) {
$scan_path = $completion_prefix = $pattern;
if (substr($completion_prefix, -1) != '/') $completion_prefix .= '/';
}
}
else $scan_path = getcwd();
}
else $scan_path = getcwd();
if (!empty($scan_path)) {
// Loading directory listing
$completion = array_values(array_diff(scandir($scan_path), array('..', '.')));
natsort($completion);
// Prefix
if (!empty($completion_prefix) && !empty($completion)) {
foreach ($completion as &$value) $value = $completion_prefix . $value;
}
// Pattern
if (!empty($pattern) && !empty($completion)) {
// For PHP version that does not support anonymous functions (available since PHP 5.3.0)
function filter_pattern($value) {
global $pattern;
return !strncmp($pattern, $value, strlen($pattern));
}
$completion = array_values(array_filter($completion, 'filter_pattern'));
}
}
return array('completion' => $completion);
}
public function run($token, $environment, $command) {
$result = $this->initialize($token, $environment);
if ($result) return $result;
$output = ($command && !is_empty_string($command)) ? execute_command($command) : '';
if ($output && substr($output, -1) == "\n") $output = substr($output, 0, -1);
return array('output' => $output);
}
}
// Processing request
if (array_key_exists('REQUEST_METHOD', $_SERVER) && $_SERVER['REQUEST_METHOD'] == 'POST') {
$rpc_server = new WebConsoleRPCServer();
$rpc_server->Execute();
}
else if (!$IS_CONFIGURED) {
?>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<title>Web Console</title>
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta name="description" content="Web Console (http://www.web-console.org)" />
<meta name="author" content="Nickolay Kovalev (http://resume.nickola.ru)" />
<meta name="robots" content="none" />
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</head>
<body>
<div class="configure">
<p>Web Console must be configured before use:</p>
<ul>
<li>Open Web Console PHP file in your favorite text editor.</li>
<li>At the beginning of the file enter your <span class="variable">$USER</span> and <span class="variable">$PASSWORD</span> credentials, edit any other settings that you like (see description in the comments).</li>
<li>Upload changed file to the web server and open it in the browser.</li>
</ul>
<p>For more information visit Web Console website: <a href="http://web-console.org">http://web-console.org</a></p>
</div>
</body>
</html>
<?php
}
else { ?>
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<meta name="description" content="Web Console (http://www.web-console.org)" />
<meta name="author" content="Nickolay Kovalev (http://resume.nickola.ru)" />
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