Add option to bypass authenticating to S3 (gorilla-co#86)

Author: jaustinpage

s3pypi/__main__.py

@@ -62,6 +62,11 @@ def get_arg_parser():
         action="store_true",
         help="Write a root index that lists all available package names.",
     )
+    p.add_argument(
+        "--no-sign-request",
+        action="store_true",
+        help="Don't use authentication when communicating with S3.",
+    )
     p.add_argument("-f", "--force", action="store_true", help="Overwrite files.")
     p.add_argument("-v", "--verbose", action="store_true", help="Verbose output.")
     p.add_argument("-V", "--version", action="version", version=__version__)

s3pypi/storage.py

@@ -3,6 +3,7 @@
 
 import boto3
 import botocore
+from botocore.config import Config
 
 from s3pypi.index import Index
 
@@ -20,8 +21,13 @@ def __init__(
         s3_endpoint_url: Optional[str] = None,
         s3_put_args: Optional[dict] = None,
         unsafe_s3_website: bool = False,
+        no_sign_request: bool = False,
     ):
-        self.s3 = session.resource("s3", endpoint_url=s3_endpoint_url)
+        _config = None
+        if no_sign_request:
+            _config = Config(signature_version=botocore.session.UNSIGNED)
+
+        self.s3 = session.resource("s3", endpoint_url=s3_endpoint_url, config=_config)
         self.bucket = bucket
         self.prefix = prefix
         self.index_name = self._index if unsafe_s3_website else ""