[SDK-160]: Added saving of image to Django example project

Author: echarrod

.gitignore

@@ -94,4 +94,5 @@ ENV/
 *.un~
 .history/
 .vscode
+examples/yoti_example_django/yoti_example/static/YotiSelfie.jpg
 examples/yoti_example_django/db.sqlite3

examples/yoti_example_django/yoti_example/settings.py

@@ -120,3 +120,7 @@
 # https://docs.djangoproject.com/en/1.10/howto/static-files/
 
 STATIC_URL = '/static/'
+STATICFILES_FOLDER_NAME = 'static'
+PROJECT_DIR = 'yoti_example/'
+STATIC_ROOT = os.path.join(BASE_DIR, STATICFILES_FOLDER_NAME)
+STATICFILES_DIRS = os.path.join(PROJECT_DIR, STATICFILES_FOLDER_NAME),

examples/yoti_example_django/yoti_example/templates/profile.html

@@ -18,7 +18,11 @@ <h3><a href="/">Home</a></h3>
             <tr>
                 <td>SELFIE in base64 format:</td>
                 <td><img width="200" alt="base64photo" src="{{selfie}}" /></td>
-            </tr>         
+            </tr>
+            <tr>
+                <td>SELFIE from saved image:</td>
+                <td><img width="200" alt="saved image" src="/static/YotiSelfie.jpg" /></td>
+            </tr>
         {% endif %}
 
         {% if given_names %}

examples/yoti_example_django/yoti_example/views.py

@@ -1,6 +1,9 @@
+import os
+
 from django.views.generic import TemplateView
 
 from yoti_python_sdk import Client
+from binascii import a2b_base64
 
 from .app_settings import (
     YOTI_APPLICATION_ID,
@@ -23,4 +26,13 @@ def get(self, request, *args, **kwargs):
         client = Client(YOTI_CLIENT_SDK_ID, YOTI_FULL_KEY_FILE_PATH)
         activity_details = client.get_activity_details(request.GET['token'])
         context = activity_details.user_profile
+        self.save_image(activity_details.user_profile.get('selfie'))
         return self.render_to_response(context)
+
+    @staticmethod
+    def save_image(base64_uri):
+        base64_data_stripped = base64_uri[base64_uri.find(",")+1:]
+        binary_data = a2b_base64(base64_data_stripped)
+        fd = open('yoti_example/static/YotiSelfie.jpg', 'wb')
+        fd.write(binary_data)
+        fd.close()