fresh start

downloadHelper.py

@@ -0,0 +1,29 @@
+import os
+import shutil
+import aiohttp
+
+from exceptions import DOWNLOAD_FAIL
+
+async def downloadFileToMemory(url, session : aiohttp.ClientSession):
+    print("Downloading", url)
+    try:
+        async with session.get(url) as resp:
+            result = await resp.read()
+            if len(result) == 0:
+                raise DOWNLOAD_FAIL("received 0 bytes")
+            else: 
+                return result
+    except Exception as e:
+        print(url, e)
+        raise DOWNLOAD_FAIL(e)
+    
+async def save_to_file(url, out_file, session):
+    file_bytes = await downloadFileToMemory(url, session)
+
+    if os.path.exists(out_file):
+        shutil.copy(out_file, out_file + "_bck")
+
+    with open(out_file, "wb") as binary_file:
+        binary_file.write(file_bytes)
+
+    return file_bytes