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Pull Request — master (#50)
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03:24
created

Helper::getNewFileName()   A

↳ Parent: Helper

Complexity

Conditions 2
Paths 2

Size

Total Lines 10
Code Lines 6

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 0
CRAP Score 6

Importance

Changes 0
Metric Value
dl 0
loc 10
ccs 0
cts 8
cp 0
rs 9.4285
c 0
b 0
f 0
cc 2
eloc 6
nc 2
nop 3
crap 6
1 
<?php
2 
/**
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 * ownCloud - Richdocuments App
4 
 *
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 * @author Victor Dubiniuk
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 * @copyright 2013 Victor Dubiniuk [email protected]
7 
 *
8 
 * This file is licensed under the Affero General Public License version 3 or
9 
 * later.
10 
 */
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namespace OCA\Richdocuments;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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class Helper {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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	const APP_ID = 'richdocuments';

            


            
                                                                                                            
                            
            
                                    
            
            

                
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	/**

            


            
                                                                                                            
                            
            
                                    
            
            

                
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	 * @param string $fileId

            


            
                                                                                                            
                            
            
                                    
            
            

                
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	 * @return array

            


            
                                                                                                            
                            
            
                                    
            
            

                
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	 * @throws \Exception

            


            
                                                                                                            
                            
            
                                    
            
            

                
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	 */

            


            
                                                                                                            
                            
            
                                    
            
            

                
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	public static function parseFileId($fileId) {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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		$arr = explode('_', $fileId);

            


            
                                                                                                            
                            
            
                                    
            
            

                
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		if (count($arr) === 1) {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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			$fileId = $arr[0];

            


            
                                                                                                            
                            
            
                                    
            
            

                
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			$version = '0';

            


            
                                                                                                            
                            
            
                                    
            
            

                
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		} else if (count($arr) === 2) {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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			list($fileId, $instanceId) = $arr;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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			$version = '0';

            


            
                                                                                                            
                            
            
                                    
            
            

                
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		} else if (count($arr) === 3) {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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			list($fileId, $instanceId, $version) = $arr;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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		} else {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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			throw new \Exception('$fileId has not the expected format');

            


            
                                                                                                            
                            
            
                                    
            
            

                
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		}

            


            
                                                                                                            
                            
            
                                    
            
            

                
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		return [

            


            
                                                                                                            
                            
            
                                    
            
            

                
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			$fileId,

            


            
                                                                                                            
                            
            
                                    
            
            

                
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			$instanceId,

            


                            

                    
                        
                    
                    
                    
                    
                                                                                                    
                        

                            
                            
0 ignored issues

                            –
                            show
                        


                        

                                                                                        




    

        
            Bug
    
    
    
        introduced 
                            by 
            

        

        

            
        

        

            

                

                    
                
                
            


        

    

    

        
                        

                            
                                
                            
                        

                                        
The variable $instanceId does not seem to be defined for all execution paths leading up to this point.
                                                                                                

                    
                                            

                            

                            

                                
                                    
                                
                            


                            
If you define a variable conditionally, it can happen that it is not defined
for all execution paths.


Let’s take a look at an example:


function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}





In the above example, the variable $x is defined if you pass “foo” or “bar”
as argument for $a. However, since the switch statement has no default
case statement, if you pass any other value, the variable $x would be undefined.




Available Fixes


  1. Check for existence of the variable explicitly:
    

    function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    if (isset($x)) { // Make sure it's always set.
        echo $x;
    }
}

    

    

    2. 

  2. Define a default value for the variable:
    

    function myFunction($a) {
    $x = ''; // Set a default which gets overridden for certain paths.
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    echo $x;
}

    

    

    3. 

  3. Add a value for the missing path:
    

    function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;

        // We add support for the missing case.
        default:
            $x = '';
            break;
    }

    echo $x;
}

    

    

    4. 



                        

                                                    

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			$version,

            


            
                                                                                                            
                            
            
                                    
            
            

                
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		];

            


            
                                                                                                            
                            
            
                                    
            
            

                
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	}

            


            
                                                                                                            
                            
            
                                    
            
            

                
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	public static function getNewFileName($view, $path, $prepend = ' '){

            


            
                                                        
            
                                    
            
            

                
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		$fileNum = 1;

            


            
                                                        
            
                                    
            
            

                
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		while ($view->file_exists($path)){

            


            
                                                        
            
                                    
            
            

                
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			$fileNum += 1;

            


            
                                                        
            
                                    
            
            

                
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			$path = preg_replace('/(\.|' . $prepend . '\(\d+\)\.)([^.]*)$/', $prepend . '(' . $fileNum . ').$2', $path);

            


            
                                                        
            
                                    
            
            

                
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		};

            


            
                                                        
            
                                    
            
            

                
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		return $path;

            


            
                                                        
            
                                    
            
            

                
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	}

            


            
                                                        
            
                                    
            
            

                
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}

            


            
                                                        
            
                                    
            
            

                
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