Issues in Parser.php (master) - Issues in master - hansott/graphql-language - Measure and Improve Code Quality continuously with Scrutinizer

Issues (98)

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Cross-Site Scripting

Cross-Site Scripting enables an attacker to inject code into the response of a web-request that is viewed by other users. It can for example be used to bypass access controls, or even to take over other users' accounts.

File Exposure

File Exposure allows an attacker to gain access to local files that he should not be able to access. These files can for example include database credentials, or other configuration files.

File Manipulation

File Manipulation enables an attacker to write custom data to files. This potentially leads to injection of arbitrary code on the server.

Object Injection

Object Injection enables an attacker to inject an object into PHP code, and can lead to arbitrary code execution, file exposure, or file manipulation attacks.

Code Injection

Code Injection enables an attacker to execute arbitrary code on the server.

Response Splitting

Response Splitting can be used to send arbitrary responses.

File Inclusion

File Inclusion enables an attacker to inject custom files into PHP's file loading mechanism, either explicitly passed to include, or for example via PHP's auto-loading mechanism.

Command Injection

Command Injection enables an attacker to inject a shell command that is execute with the privileges of the web-server. This can be used to expose sensitive data, or gain access of your server.

SQL Injection

SQL Injection enables an attacker to execute arbitrary SQL code on your database server gaining access to user data, or manipulating user data.

XPath Injection

XPath Injection enables an attacker to modify the parts of XML document that are read. If that XML document is for example used for authentication, this can lead to further vulnerabilities similar to SQL Injection.

LDAP Injection

LDAP Injection enables an attacker to inject LDAP statements potentially granting permission to run unauthorized queries, or modify content inside the LDAP tree.

Header Injection

Other Vulnerability

This category comprises other attack vectors such as manipulating the PHP runtime, loading custom extensions, freezing the runtime, or similar.

Regex Injection

Regex Injection enables an attacker to execute arbitrary code in your PHP process.

XML Injection

XML Injection enables an attacker to read files on your local filesystem including configuration files, or can be abused to freeze your web-server process.

Variable Injection

Variable Injection enables an attacker to overwrite program variables with custom data, and can lead to further vulnerabilities.

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src/Schema/Parser.php (22 issues)

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<?php

namespace HansOtt\GraphQL\Schema;

use HansOtt\GraphQL\Shared\ScannerTokens;
use HansOtt\GraphQL\Shared\ScannerGeneric;
use HansOtt\GraphQL\Shared\Parser as ParserShared;

final class Parser extends ParserShared
{
    private $objects;
    private $enums;
    private $unions;
    private $interfaces;
    private $inputObjects;

    protected function getNameFor($tokenType)
    {
        return Token::getNameFor($tokenType);
    }

    private function parseListType()
    {
        $location = $this->expect(Token::T_BRACKET_LEFT)->location;
        $type = $this->parseType();
        $this->accept(Token::T_BRACKET_RIGHT);

        return new TypeList($type, $location);
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
    }

    private function parseNamedType()
    {
        $nameToken = $this->expect(Token::T_NAME);
        $type = new TypeNamed($nameToken->value, $nameToken->location);
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);

        return $type;
    }

    private function maybeParseNullType(Type $type)
    {
        if ($this->accept(Token::T_EXCLAMATION)) {
            return new TypeNonNull($type, $type->getLocation());
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
        }

        return $type;
    }

    private function parseType()

    {
        if ($this->is(Token::T_BRACKET_LEFT)) {
            return $this->maybeParseNullType(
                $this->parseListType()
            );
        }

        if ($this->is(Token::T_NAME)) {
            return $this->maybeParseNullType(
                $this->parseNamedType()
            );
        }

        $message = 'Expected a type';

        if ($this->scanner->eof()) {
            throw $this->getParseError($message . ' but instead reached end');
        }

        $token = $this->scanner->peek();
        throw $this->getParseError($message . " but instead found \"{$token->getName()}\" with value \"{$token->value}\"");
    }

    private function parseObject()

    {
        $location = $this->expect(Token::T_BRACE_LEFT)->location;
        $fields = array();
        while ($this->scanner->eof() === false) {
            if ($this->accept(Token::T_BRACE_RIGHT)) {
                return new ValueObject($fields, $location);
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
            }

            $nameToken = $this->expect(Token::T_NAME);
            $this->expect(Token::T_COLON);
            $fields[] = new ValueObjectField($nameToken->value, $this->parseValue(), $nameToken->location);
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
            $this->accept(Token::T_COMMA);
        }

        throw $this->getParseError('Unclosed brace of object value');
    }

    private function parseList()

    {
        $location = $this->expect(Token::T_BRACKET_LEFT)->location;
        $items = array();
        while ($this->scanner->eof() === false) {
            if ($this->accept(Token::T_BRACKET_RIGHT)) {
                return new ValueList($items, $location);
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
            }

            $items[] = $this->parseValue();
            $this->accept(Token::T_COMMA);
        }

        throw $this->getParseError('Unclosed bracket of list');

    }

    private function parseValue()
    {
        if ($string = $this->accept(Token::T_STRING)) {
            return new ValueString($string->value, $string->location);
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
        }

        if ($true = $this->accept(Token::T_TRUE)) {
            return new ValueBoolean(true, $true->location);
        }

        if ($false = $this->accept(Token::T_FALSE)) {
            return new ValueBoolean(false, $false->location);
        }

        if ($null = $this->accept(Token::T_NULL)) {
            return new ValueNull($null->location);
        }

        if ($int = $this->accept(Token::T_INT)) {
            return new ValueInt($int->value, $int->location);
        }

        if ($float = $this->accept(Token::T_FLOAT)) {
            return new ValueFloat($float->value, $float->location);
        }

        if ($name = $this->accept(Token::T_NAME)) {
            return new ValueEnum($name->value, $name->location);
        }

        if ($this->is(Token::T_BRACKET_LEFT)) {
            return $this->parseList();
        }

        if ($this->is(Token::T_BRACE_LEFT)) {
            return $this->parseObject();
        }

        $message = 'Expected a value';

        if ($this->scanner->eof()) {
            throw $this->getParseError($message . ' but instead reached end');
        }

        $token = $this->scanner->peek();
        throw $this->getParseError($message . " but instead found \"{$token->getName()}\" with value \"{$token->value}\"");
    }

    private function parseFieldArguments()
    {
        if ($this->accept(Token::T_PAREN_LEFT) === false) {
            return array();
        }

        $arguments = array();
        while ($this->scanner->eof() === false) {
            if ($this->accept(Token::T_PAREN_RIGHT)) {
                return $arguments;
            }

            $nameToken = $this->expect(Token::T_NAME);
            $this->expect(Token::T_COLON);
            $type = $this->parseType();
            $defaultValue = null;

            if ($this->accept(Token::T_EQUAL)) {
                $defaultValue = $this->parseValue();
            }

            $arguments[] = new Argument(
                $nameToken->value,
                $type,
                $defaultValue,
                $nameToken->location
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
            );

            $this->accept(Token::T_COMMA);
        }

        return $arguments;
    }

    private function parseField($forInputObject)

    {
        $nameToken = $this->expect(Token::T_NAME);

        $arguments = array();
        if ($forInputObject === false) {
            $arguments = $this->parseFieldArguments();
        }

        $this->expect(Token::T_COLON);
        $type = $this->parseType();

        return new Field(
            $nameToken->value,
            $type,
            $arguments,
            $nameToken->location
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
        );
    }

    private function parseObjectDeclaration()
    {
        $location = $this->expect(Token::T_NAME)->location;
        $name = $this->expect(Token::T_NAME)->value;

        $interface = null;
        if ($implementsToken = $this->accept(Token::T_NAME)) {
            if ($implementsToken->value !== 'implements') {
                throw $this->getParseError("Expected \"implements\" but instead found \"{$implementsToken->value}\"");
            }
            $interface = $this->expect(Token::T_NAME)->value;
        }

        $this->expect(Token::T_BRACE_LEFT);
        $fields = array();
        while ($this->scanner->eof() === false) {
            if ($this->accept(Token::T_BRACE_RIGHT)) {
                return new DeclarationObject(
                    $name,
                    $fields,
                    $interface,
                    $location
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
                );
            }

            $fields[] = $this->parseField(false);
            $this->accept(Token::T_COMMA);
        }

        throw $this->getParseError('Expected an object field but instead reached end');
    }

    private function parseInputObjectDeclaration()

    {
        $location = $this->expect(Token::T_NAME)->location;
        $name = $this->expect(Token::T_NAME)->value;
        $this->expect(Token::T_BRACE_LEFT);
        $fields = array();
        while ($this->scanner->eof() === false) {
            if ($this->accept(Token::T_BRACE_RIGHT)) {
                return new DeclarationInputObject(
                    $name,
                    $fields,
                    $location
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
                );
            }

            $fields[] = $this->parseField(true);
            $this->accept(Token::T_COMMA);
        }

        throw $this->getParseError('Expected an input object field but instead reached end');
    }

    private function parseEnumDeclaration()

    {
        $location = $this->expect(Token::T_NAME)->location;
        $name = $this->expect(Token::T_NAME)->value;
        $this->expect(Token::T_BRACE_LEFT);
        $values = array();
        while ($this->scanner->eof() === false) {
            if ($this->accept(Token::T_BRACE_RIGHT)) {
                return new DeclarationEnum(
                    $name,
                    $values,
                    $location
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
                );
            }

            $values[] = $this->expect(Token::T_NAME)->value;
            $this->accept(Token::T_COMMA);
        }

        throw $this->getParseError('Expected an enumeration value but instead reached end');
    }

    private function parseInterfaceDeclaration()

    {
        $location = $this->expect(Token::T_NAME)->location;
        $name = $this->expect(Token::T_NAME)->value;
        $this->expect(Token::T_BRACE_LEFT);
        $fields = array();
        while ($this->scanner->eof() === false) {
            if ($this->accept(Token::T_BRACE_RIGHT)) {
                return new DeclarationInterface(
                    $name,
                    $fields,
                    $location
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
                );
            }

            $fields[] = $this->parseField(false);
            $this->accept(Token::T_COMMA);
        }

        throw $this->getParseError('Expected an interface field but instead reached end');
    }

    private function parseUnionDeclaration()
    {
        $location = $this->expect(Token::T_NAME)->location;
        $name = $this->expect(Token::T_NAME)->value;
        $this->expect(Token::T_EQUAL);
        $members = array();
        while ($this->scanner->eof() === false) {
            if ($this->is(Token::T_NAME) === false) {
                return new DeclarationUnion(
                    $name,
                    $members,
                    $location
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
                );
            }

            $members[] = $this->expect(Token::T_NAME)->value;

            if ($this->is(Token::T_PIPE) === false) {
                return new DeclarationUnion(
                    $name,
                    $members,
                    $location
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
                );
            }

            $this->expect(Token::T_PIPE);
        }

        throw $this->getParseError('Expected an interface field but instead reached end');
    }

    private function parseDeclaration()
    {
        $message = 'Expected a type declaration';

        if ($this->scanner->eof()) {
            throw $this->getParseError("{$message} but instead reached end");
        }

        $token = $this->scanner->peek();
        switch ($token->value) {
            case 'type':
                return $this->parseObjectDeclaration();
            case 'input':
                return $this->parseInputObjectDeclaration();
            case 'enum':
                return $this->parseEnumDeclaration();
            case 'interface':
                return $this->parseInterfaceDeclaration();
            case 'union':
                return $this->parseUnionDeclaration();
        }

        throw $this->getParseError("{$message} but instead found {$token->getName()} with value \"{$token->value}\"");
    }

    private function parseSchema()
    {
        $declarations = array();
        while ($this->scanner->eof() === false) {
            $declarations[] = $this->parseDeclaration();
        }

        return new Schema($declarations);
    }

    /**
     * @param string $schema
     *
     * @return Schema
     */
    public function parse($schema)
    {
        $tokens = $this->lexer->lex($schema);
        $scanner = new ScannerGeneric($tokens);
        $this->scanner = new ScannerTokens($scanner);
        $this->objects = array();
        $this->enums = array();
        $this->unions = array();
        $this->interfaces = array();
        $this->inputObjects = array();
        $declaration = $this->parseSchema();

        return $declaration;
    }
}


1		<?php
2
3		namespace HansOtt\GraphQL\Schema;
4
5		use HansOtt\GraphQL\Shared\ScannerTokens;
6		use HansOtt\GraphQL\Shared\ScannerGeneric;
7		use HansOtt\GraphQL\Shared\Parser as ParserShared;
8
9		final class Parser extends ParserShared
10		{
11		private $objects;
12		private $enums;
13		private $unions;
14		private $interfaces;
15		private $inputObjects;
16
17	3	protected function getNameFor($tokenType)
18		{
19	3	return Token::getNameFor($tokenType);
20		}
21
22	6	private function parseListType()
23		{
24	6	$location = $this->expect(Token::T_BRACKET_LEFT)->location;
25	6	$type = $this->parseType();
26	6	$this->accept(Token::T_BRACKET_RIGHT);
27
28	6	return new TypeList($type, $location);
		0 ignored issues – show Documentation introduced 2017-09-23 18:42 UTC by Report Bug Copy Issue Report Show Similar Issues like this `$location` is of type `object<HansOtt\GraphQL\Shared\Location>`, but the function expects a `null\|object<HansOtt\GraphQL\Schema\Location>`. It seems like the type of the argument is not accepted by the function/method which you are calling. In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug. We suggest to add an explicit type cast like in the following example: function acceptsInteger($int) { } $x = '123'; // string "123" // Instead of acceptsInteger($x); // we recommend to use acceptsInteger((integer) $x); Loading history...
29		}
30
31	9	private function parseNamedType()
32		{
33	9	$nameToken = $this->expect(Token::T_NAME);
34	9	$type = new TypeNamed($nameToken->value, $nameToken->location);
		0 ignored issues – show Documentation introduced 2017-09-23 18:42 UTC by Report Bug Copy Issue Report Show Similar Issues like this `$nameToken->location` is of type `object<HansOtt\GraphQL\Shared\Location>`, but the function expects a `null\|object<HansOtt\GraphQL\Schema\Location>`. It seems like the type of the argument is not accepted by the function/method which you are calling. In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug. We suggest to add an explicit type cast like in the following example: function acceptsInteger($int) { } $x = '123'; // string "123" // Instead of acceptsInteger($x); // we recommend to use acceptsInteger((integer) $x); Loading history...
35
36	9	return $type;
37		}
38

hansott / graphql-language

Issues (98)

Security Analysis no request data

src/Schema/Parser.php (22 issues)

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