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encode_image_from_url()   F
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Complexity

Conditions 11

Size

Total Lines 29

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
cc 11
dl 0
loc 29
rs 3.1764
c 0
b 0
f 0

How to fix   Complexity   

Complexity

Complex classes like encode_image_from_url() often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.

Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.

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# -*- coding: utf-8 -*-
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import base64
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import mimetypes
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import os
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def get_path_url(path, relative=False):

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    """ Returns an absolute or relative path url given a path

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    """

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    if relative is False:

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        return 'file://%s' % os.path.abspath(path)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    else:

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        return os.path.relpath(path, relative)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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def encode_image_from_url(url, source_path):

            


            
                                                        
            
                                    
            
            

                
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    if not url or url.startswith('data:') or url.startswith('file://'):

            


            
                                                        
            
                                    
            
            

                
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        return False

            


            
                                                        
            
                                    
            
            

                
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    if url.startswith('http://') or url.startswith('https://'):

            


            
                                                        
            
                                    
            
            

                
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        return False

            


            
                                                        
            
                                    
            
            

                
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    real_path = url if os.path.isabs(url) else os.path.join(source_path, url)

            


            
                                                        
            
                                    
            
            

                
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    if not os.path.exists(real_path):

            


            
                                                        
            
                                    
            
            

                
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        print('%s was not found, skipping' % url)

            


            
                                                        
            
                                    
            
            

                
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        return False

            


            
                                                        
            
                                    
            
            

                
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    mime_type, encoding = mimetypes.guess_type(real_path)

            


            
                                                        
            
                                    
            
            

                
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    if not mime_type:

            


            
                                                        
            
                                    
            
            

                
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        print('Unrecognized mime type for %s, skipping' % url)

            


            
                                                        
            
                                    
            
            

                
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        return False

            


            
                                                        
            
                                    
            
            

                
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    try:

            


            
                                                        
            
                                    
            
            

                
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        with open(real_path, 'rb') as image_file:

            


            
                                                        
            
                                    
            
            

                
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            image_contents = image_file.read()

            


            
                                                        
            
                                    
            
            

                
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            encoded_image = base64.b64encode(image_contents)

            


            
                                                        
            
                                    
            
            

                
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    except IOError:

            


            
                                                        
            
                                    
            
            

                
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        return False

            


            
                                                        
            
                                    
            
            

                
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    return u"data:%s;base64,%s" % (mime_type, encoded_image.decode())

            


            
                                                        
            
                                    
            
            

                
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