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memegen.services.link.LinkService.decode()   A
last analyzed

↳ Parent: memegen.services.link

Complexity

Conditions 3

Size

Total Lines 8
Code Lines 7

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 7
CRAP Score 3

Importance

Changes 0
Metric Value
cc 3
eloc 7
nop 2
dl 0
loc 8
rs 10
c 0
b 0
f 0
ccs 7
cts 7
cp 1
crap 3
1 1 
import base64
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from ._base import Service

            


            
                                                                                                            
                            
            
                                    
            
            

                
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class LinkService(Service):

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    def __init__(self, template_store, **kwargs):

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        super().__init__(**kwargs)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        self.template_store = template_store

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    @staticmethod

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    def encode(key, path):

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        slug = '\t'.join((key, path))

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        while len(slug) % 3:

            


            
                                                                                                            
                            
            
                                    
            
            

                
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            slug += '\t'

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        code = base64.urlsafe_b64encode(slug.encode('utf-8'))

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        return code.decode('utf-8')

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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    def decode(self, code):

            


            
                                                        
            
                                    
            
            

                
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        try:

            


            
                                                        
            
                                    
            
            

                
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            slug = base64.urlsafe_b64decode(code).decode('utf-8')

            


            
                                                        
            
                                    
            
            

                
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            key, path = slug.strip('\t').split('\t')

            


            
                                                        
            
                                    
            
            

                
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        except ValueError:

            


            
                                                        
            
                                    
            
            

                
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            raise self.exceptions.InvalidMaskedCode

            


            
                                                        
            
                                    
            
            

                
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        else:

            


            
                                                        
            
                                    
            
            

                
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            return key, path

            


            
                                                        
            
                                    
            
            

                
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