IoT Client und Changes vom Herzeigen

iotclient/client.py

@@ -0,0 +1,78 @@
+from tkinter import *
+from PIL import ImageTk,Image
+from PIL.ExifTags import TAGS
+import io
+import dropbox
+import base64
+import requests
+import json
+
+
+def print_response(response):
+    print("Code: " + str(response.status_code) + "; Body: " + str(response.json()))
+
+def show_image(pil_image):
+    root = Tk()  
+    canvas = Canvas(root, width = pil_image.size[0], height = pil_image.size[1])  
+    canvas.pack()  
+    img = ImageTk.PhotoImage(pil_image)
+    canvas.create_image(20, 20, anchor=NW, image=img) 
+    root.mainloop()
+
+def print_metadata(pil_image):
+    exifdata = pil_image.getexif()
+    print("found " + str(len(exifdata)) + " metadata tags")
+    for tag_id in exifdata:
+        # get the tag name, instead of human unreadable tag id
+        tag = TAGS.get(tag_id, tag_id)
+        data = exifdata.get(tag_id)
+        # decode bytes 
+        if isinstance(data, bytes):
+            data = data.decode()
+        print(f"{tag:25}: {data}")
+
+
+
+
+
+#path = "bild_mit_metadaten" + ".jpg"
+path = "bild_ohne_metadaten2" + ".jpg"
+im = Image.open(path)
+
+#show_image(im)
+#print_metadata(im)
+
+
+
+global b64_file
+
+with open(path, "rb") as image_file:
+    b64_file = base64.b64encode(image_file.read())
+
+
+
+payload = b64_file.decode('utf-8')
+
+#Bild lokal encoden (spiel Server zum testen)
+#encoded_bytes = payload.encode('utf-8')
+#decoded_file = base64.b64decode(encoded_bytes)
+#img2 = Image.open(io.BytesIO(decoded_file))
+#show_image(img2)
+#print_metadata(img2)
+
+#dbx = dropbox.Dropbox('SDt1aqMQg7EAAAAAAAAAARV4CNnOSTjYLc05W2YAxIArG93DnaK9Si9VbwE-aBbQ')
+#dbx.files_upload(decoded_file,'/Apps/AIC Federated Storage Infrastructure/test_image_1.jpg')
+
+
+
+baseurl = "http://127.0.0.1:8000/image/post"
+session = requests.Session()
+
+body = {
+    'filename': 'image.jpg',
+    'metadata': 'nix',
+    'image_data': payload
+}
+
+response = session.post(baseurl, json=body)
+print_response(response)

middleware/app_be/settings.py

@@ -219,4 +219,4 @@ LOGGING = {
 # increase the maximum upload size of files
 DATA_UPLOAD_MAX_MEMORY_SIZE = 104857600
 
-DROPBOX_OAUTH2_ACCESS_TOKEN = 'sl.AmBKKaIkaH0ZKuk5i60EbN8dIspDugFK2k4ixfMkr3BZ7ZJ0yF5YAj-69mWKO-G_K-ctk_Ai4a6BeOXEZ_kZH4waUUlPhnV3QBe4QfGYN5PQcs-9SwQ5BWQfeQSKw9jkybbV9mjOdQ4'
+DROPBOX_OAUTH2_ACCESS_TOKEN = 'SDt1aqMQg7EAAAAAAAAAARV4CNnOSTjYLc05W2YAxIArG93DnaK9Si9VbwE-aBbQ'

middleware/app_be/views/rest_api.py

@@ -37,7 +37,11 @@ class ImageEndpoint:
     @api_view(['POST'])
     def image_api_post(request: HttpRequest):
         logger.debug('Image POST call: {}'.format(request))
-        data = json.loads(request.body.decode('utf-8'))
+        payload = json.loads(request.body.decode('utf-8'))
+        b64encoded_image = payload['image_data']
+        filename = payload['filename']
+        metadata = payload['metadata']
+        decoded_image = base64.b64decode(b64encoded_image)
         dbx = dropbox.Dropbox(settings.DROPBOX_OAUTH2_ACCESS_TOKEN)
-        dbx.files_upload(base64.b64decode(data['image_data']),'/Apps/AIC Federated Storage Infrastructure/test_image_1.jpg')
+        dbx.files_upload(decoded_image,'/Apps/AIC Federated Storage Infrastructure/' + filename)
-        return JsonResponse({'Result': 'success2', 'received file': data['filename']}, safe=False)
+        return JsonResponse({'Result': 'success2', 'received file': filename, 'metadata': metadata}, safe=False)

middleware/setup.py

@@ -19,7 +19,6 @@ setup(
         'whitenoise==5.2.0',
         'Pillow==8.0.1',
         'dropbox==10.10.0'
-
     ],
     license='BSD License',  # example license
     description='DESCRIPTION'