Re: {"image":["File extension “zip” is not allowed. Allowed extensions are: bmp, dib, gif, tif, tiff, jfif, jpe, jpg, jpeg, pbm, pgm, ppm, pnm, png, apng, blp, bufr, cur, pcx, dcx, dds, ps, eps, fit, fits, fli, flc, ftc, ftu, gbr, grib, h5, hdf, jp2,

from rest_framework import routers, serializers, viewsets

import base64

from .models import upload

import zipfile

import os 

class Base64ImageField(serializers.ImageField):

    """

    A Django REST framework field for handling image-uploads through raw post data.

    It uses base64 for encoding and decoding the contents of the file.

    Heavily based on

    https://github.com/tomchristie/django-rest-framework/pull/1268

    Updated for Django REST framework 3.

    """

    def to_internal_value(self, data):

        from django.core.files.base import ContentFile

        import base64

        import six

        import uuid

        # Check if this is a base64 string

        if isinstance(data, six.string_types):

            # Check if the base64 string is in the "data:" format

            if 'data:' in data and ';base64,' in data:

                # Break out the header from the base64 content

                header, data = data.split(';base64,')

            # Try to decode the file. Return validation error if it fails.

            try:

                decoded_file = base64.b64decode(data)

            except TypeError:

                self.fail('invalid_image')

            # Generate file name:

            file_name = str(uuid.uuid4())[:12] # 12 characters are more than enough.

            # Get the file name extension:

            file_extension = self.get_file_extension(file_name, decoded_file)

            complete_file_name = "%s.%s" % (file_name, file_extension, )

            data = ContentFile(decoded_file, name=complete_file_name)

        return super(Base64ImageField, self).to_internal_value(data)

    def get_file_extension(self, file_name, decoded_file):

        import imghdr

        extension = imghdr.what(file_name, decoded_file)

        extension = "zip" if extension == "jpeg" else extension #<--error line---> i am converting Base 64 data into zip file

        #examplezip.write(serializers.ImageField,compress_type = zipfile.ZIP_DEFLATED)

        #examplezip.close()

        return extension

 

   

class uploadSerializers(serializers.ModelSerializer):

    

    image=Base64ImageField(

       max_length=None, use_url=True,

       )

   

    #image =  serializers.ImageField(max_length=None,use_url=True)

    class Meta:

        model = upload

        fields = ('id','image','user')

        extra_kwargs = {'user': {'required': False}}

On Thursday, April 30, 2020 at 2:05:25 PM UTC+5:30, yashwanth balanagu wrote:

{"image":["File extension "zip" is not allowed. Allowed extensions are: bmp, dib, gif, tif, tiff, jfif, jpe, jpg, jpeg, pbm, pgm, ppm, pnm, png, apng, blp, bufr, cur, pcx, dcx, dds, ps, eps, fit, fits, fli, flc, ftc, ftu, gbr, grib, h5, hdf, jp2, j2k, jpc, jpf, jpx, j2c, icns, ico, im, iim, mpg, mpeg, mpo, msp, palm, pcd, pdf, pxr, psd, bw, rgb, rgba, sgi, ras, tga, icb, vda, vst, webp, wmf, emf, xbm, xpm."]}

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