first commit for cute snep u//w//u

exif.py

@@ -0,0 +1,81 @@
+import logging
+logging.basicConfig(stream=sys.stderr, level=logging.DEBUG)
+
+allowed_exts=[
+  "tif","tiff",                         # TIFF
+  "jpeg","jpg","pjpeg","pjpg","jpe",    # JPEG
+  "webp",                               # Webp
+# "wav","wave",                         # RIFF Wave
+  "png","apng"                          # PNG (since 1.2)
+]
+
+def backupMetadata(file):
+  from PIL import Image, ExifTags
+  
+  logging.debug(f"loading file {file}")
+  img = Image.open(file)
+  logging.debug("file loaded. getting exif")
+  img_exif = img.getexif()
+  
+  full=[]
+  
+  if img_exif is None:
+    logging.warning("Could not load EXIF Data... Either something happened with Pillow, the file disappeared, or you don't have access to the file. Try running verbose!")
+    break
+  else:
+    logging.debug("loaded tags")
+    for key, val in img_exif.items():
+      logging.debug(f"for key:'{key}', val:'{val}' in img_exif.items()")
+      if key in ExifTags.TAGS:
+        logging.debug(f"{key} is known exif tag! ({ExifTags.TAGS[key]})")
+        full.append({
+          'tagName': str(key),
+          'realName': str(ExifTags.TAGS[key]),
+          'value': str(val)
+        })
+      else:
+        logging.warning(f"{key} is an unknown exif tag!")
+        full.append({
+          'tagName': str(key),
+          'realName': None,
+          'value': str(val)
+        })
+    
+    logging.info("writing backup data")
+    import json
+    
+    #import tempfile
+    #temp = tempfile.TemporaryFile(mode='w+')
+    #json.dump(full,temp,sort_keys=True)
+    with open(f"{file}.exif_backup.json.xz",'w+b') as bfile
+      logging.debug(f"writing to {bfile}")
+      import lzma
+      bfile.write(lzma.compress(
+        bytes(json.dumps(full,sort_keys=True)),
+        format=FORMAT_XZ,
+        check=CHECK_SHA256,
+        preset=9
+      ))
+      logging.debug("wrote backup data")
+    
+    logging.info("backup done!")
+    
+def writeTags(file,tags):
+  from PIL import Image
+  image=Image.open(file)
+  exif = image.getexif()
+  
+  if artist in tags:
+    if type(tag.artist) == str:
+      exif[0x013b] = tags.artist
+    elif tags.category == "deviantart":
+      exif[0x013b] = tags.artist.username
+  
+  if title in tags:
+    exif[0x0010e] = tags.title
+   
+  if description in tags:
+    exif[0x9286] = tags.description
+  
+  
+