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Completed
Pull Request — master (#9)
by Eugene
06:06
created

IProto::parseGreeting()   A

↳ Parent: IProto

Complexity

Conditions 3
Paths 3

Size

Total Lines 14
Code Lines 7

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 0
CRAP Score 12

Importance

Changes 2
Bugs 0 Features 1
Metric Value
c 2
b 0
f 1
dl 0
loc 14
ccs 0
cts 0
cp 0
rs 9.4285
cc 3
eloc 7
nc 3
nop 1
crap 12
1 
<?php
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namespace Tarantool;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use Tarantool\Exception\Exception;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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abstract class IProto

            


            
                                                                                                            
                            
            
                                    
            
            

                
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{

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    const CODE = 0x00;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    const SYNC = 0x01;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    const SPACE_ID = 0x10;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    const INDEX_ID = 0x11;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    const LIMIT = 0x12;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    const OFFSET = 0x13;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    const ITERATOR = 0x14;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    const KEY = 0x20;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    const TUPLE = 0x21;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    const FUNCTION_NAME = 0x22;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    const USER_NAME = 0x23;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    const SERVER_UUID = 0x24;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    const CLUSTER_UUID = 0x25;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    const VCLOCK = 0x26;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    const EXPR = 0x27;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    const DATA = 0x30;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    const ERROR = 0x31;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    const GREETING_SIZE = 128;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    const LENGTH_SIZE = 5;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    /**

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * @param string $greeting

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     *

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * @return string A session salt

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     *

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * @throws Exception

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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     */

            


            
                                                        
            
                                    
            
            

                
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    public static function parseGreeting($greeting)

            


            
                                                        
            
                                    
            
            

                
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    {

            


            
                                                        
            
                                    
            
            

                
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        if ('Tarantool' !== substr($greeting, 0, 9)) {

            


            
                                                        
            
                                    
            
            

                
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            throw new Exception('Invalid greeting: unable to recognize Tarantool server.');

            


            
                                                        
            
                                    
            
            

                
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        }

            


            
                                                        
            
                                    
            
            

                
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        $salt = substr(base64_decode(substr($greeting, 64, 44), true), 0, 20);

            


            
                                                        
            
                                    
            
            

                
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        if (isset($salt[19])) {

            


            
                                                        
            
                                    
            
            

                
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            return $salt;

            


            
                                                        
            
                                    
            
            

                
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        }

            


            
                                                        
            
                                    
            
            

                
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        throw new Exception('Invalid greeting: unable to parse salt.');

            


            
                                                        
            
                                    
            
            

                
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    }

            


            
                                                        
            
                                    
            
            

                
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}

            


            
                                                        
            
                                    
            
            

                
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