get-public-access-block and set-public-access-block, closes #92

docs/help.md

@@ -33,24 +33,26 @@ Options:
   --help     Show this message and exit.
 
 Commands:
-  create              Create and return new AWS credentials for specified...
+  create                   Create and return new AWS credentials for...
   debug-bucket             Run a bunch of diagnostics to help debug a bucket
   delete-objects           Delete one or more object from an S3 bucket
-  delete-user         Delete specified users, their access keys and their...
+  delete-user              Delete specified users, their access keys and...
   get-bucket-policy        Get bucket policy for a bucket
   get-cors-policy          Get CORS policy for a bucket
   get-object               Download an object from an S3 bucket
   get-objects              Download multiple objects from an S3 bucket
+  get-public-access-block  Get the public access settings for an S3 bucket
   list-bucket              List contents of bucket
   list-buckets             List buckets
   list-roles               List roles
   list-user-policies       List inline policies for specified users
   list-users               List all users for this account
-  policy              Output generated JSON policy for one or more buckets
+  policy                   Output generated JSON policy for one or more...
   put-object               Upload an object to an S3 bucket
   put-objects              Upload multiple objects to an S3 bucket
   set-bucket-policy        Set bucket policy for a bucket
   set-cors-policy          Set CORS policy for a bucket
+  set-public-access-block  Configure public access settings for an S3 bucket.
   whoami                   Identify currently authenticated user
 ```
 ## s3-credentials create --help
@@ -262,6 +264,25 @@ Options:
   -a, --auth FILENAME     Path to JSON/INI file containing credentials
   --help                  Show this message and exit.
 ```
+## s3-credentials get-public-access-block --help
+
+```
+Usage: s3-credentials get-public-access-block [OPTIONS] BUCKET
+
+  Get the public access settings for an S3 bucket
+
+  Example usage:
+
+      s3-credentials get-public-access-block my-bucket
+
+Options:
+  --access-key TEXT     AWS access key ID
+  --secret-key TEXT     AWS secret access key
+  --session-token TEXT  AWS session token
+  --endpoint-url TEXT   Custom endpoint URL
+  -a, --auth FILENAME   Path to JSON/INI file containing credentials
+  --help                Show this message and exit.
+```
 ## s3-credentials list-bucket --help
 
 ```
@@ -540,6 +561,37 @@ Options:
   -a, --auth FILENAME        Path to JSON/INI file containing credentials
   --help                     Show this message and exit.
 ```
+## s3-credentials set-public-access-block --help
+
+```
+Usage: s3-credentials set-public-access-block [OPTIONS] BUCKET
+
+  Configure public access settings for an S3 bucket.
+
+  Example:
+
+      s3-credentials set-public-access-block my-bucket --block-public-acls false
+
+  To allow full public access to the bucket, use the --allow-public-access flag:
+
+      s3-credentials set-public-access-block my-bucket --allow-public-access
+
+Options:
+  --block-public-acls BOOLEAN     Block public ACLs for the bucket (true/false).
+  --ignore-public-acls BOOLEAN    Ignore public ACLs for the bucket
+                                  (true/false).
+  --block-public-policy BOOLEAN   Block public bucket policies (true/false).
+  --restrict-public-buckets BOOLEAN
+                                  Restrict public buckets (true/false).
+  --allow-public-access           Set all public access settings to false
+                                  (allows full public access).
+  --access-key TEXT               AWS access key ID
+  --secret-key TEXT               AWS secret access key
+  --session-token TEXT            AWS session token
+  --endpoint-url TEXT             Custom endpoint URL
+  -a, --auth FILENAME             Path to JSON/INI file containing credentials
+  --help                          Show this message and exit.
+```
 ## s3-credentials whoami --help
 
 ```

docs/other-commands.md

@@ -603,3 +603,38 @@ Or for the common case of setting a policy to allow GET access to all buckets:
 ```bash
 s3-credentials set-bucket-policy my-bucket --allow-all-get
 ```
+
+## get-public-access-block
+
+The `get-public-access-block` command displays the current public access block configuration for a bucket:
+```bash
+s3-credentials get-public-access-block my-bucket
+```
+Example output:
+
+```json
+{
+    "BlockPublicAcls": false,
+    "IgnorePublicAcls": false,
+    "BlockPublicPolicy": false,
+    "RestrictPublicBuckets": false
+}
+```
+
+## set-public-access-block
+
+The `set-public-access-block` command can be used to set the public access block configuration for a bucket:
+```bash
+s3-credentials set-public-access-block my-bucket \
+  --block-public-acls true \
+  --ignore-public-acls true \
+  --block-public-policy true \
+  --restrict-public-buckets true
+```
+Each of the above options accepts `true` or `false`.
+
+You can use the `--allow-public-access` shortcut to set everything to `false` in one go:
+```bash
+s3-credentials set-public-access-block my-bucket \
+  --allow-public-access
+```

s3_credentials/cli.py

@@ -1525,6 +1525,119 @@ def delete_objects(bucket, keys, prefix, silent, dry_run, **boto_options):
             )
 
 
+@cli.command()
+@click.argument("bucket", required=True)
+@common_boto3_options
+def get_public_access_block(bucket, **boto_options):
+    """
+    Get the public access settings for an S3 bucket
+
+    Example usage:
+
+        s3-credentials get-public-access-block my-bucket
+    """
+    s3 = make_client("s3", **boto_options)
+    try:
+        response = s3.get_public_access_block(Bucket=bucket)
+    except botocore.exceptions.ClientError as e:
+        raise click.ClickException(e)
+    click.echo(json.dumps(response["PublicAccessBlockConfiguration"], indent=4))
+
+
+@cli.command()
+@click.argument("bucket", required=True)
+@click.option(
+    "--block-public-acls",
+    type=bool,
+    default=None,
+    help="Block public ACLs for the bucket (true/false).",
+)
+@click.option(
+    "--ignore-public-acls",
+    type=bool,
+    default=None,
+    help="Ignore public ACLs for the bucket (true/false).",
+)
+@click.option(
+    "--block-public-policy",
+    type=bool,
+    default=None,
+    help="Block public bucket policies (true/false).",
+)
+@click.option(
+    "--restrict-public-buckets",
+    type=bool,
+    default=None,
+    help="Restrict public buckets (true/false).",
+)
+@click.option(
+    "--allow-public-access",
+    is_flag=True,
+    help="Set all public access settings to false (allows full public access).",
+)
+@common_boto3_options
+def set_public_access_block(
+    bucket,
+    block_public_acls,
+    ignore_public_acls,
+    block_public_policy,
+    restrict_public_buckets,
+    allow_public_access,
+    **boto_options,
+):
+    """
+    Configure public access settings for an S3 bucket.
+
+    Example:
+
+        s3-credentials set-public-access-block my-bucket --block-public-acls false
+
+    To allow full public access to the bucket, use the --allow-public-access flag:
+
+        s3-credentials set-public-access-block my-bucket --allow-public-access
+    """
+    s3 = make_client("s3", **boto_options)
+
+    # Default public access block configuration
+    public_access_block_config = {}
+
+    if allow_public_access:
+        # Set all settings to False if --allow-public-access is provided
+        public_access_block_config = {
+            "BlockPublicAcls": False,
+            "IgnorePublicAcls": False,
+            "BlockPublicPolicy": False,
+            "RestrictPublicBuckets": False,
+        }
+    else:
+        # Add values only if they are explicitly provided
+        if block_public_acls is not None:
+            public_access_block_config["BlockPublicAcls"] = block_public_acls
+        if ignore_public_acls is not None:
+            public_access_block_config["IgnorePublicAcls"] = ignore_public_acls
+        if block_public_policy is not None:
+            public_access_block_config["BlockPublicPolicy"] = block_public_policy
+        if restrict_public_buckets is not None:
+            public_access_block_config["RestrictPublicBuckets"] = (
+                restrict_public_buckets
+            )
+
+    if not public_access_block_config:
+        raise click.ClickException(
+            "No valid options provided. Use --help to see available options."
+        )
+
+    # Apply the public access block configuration to the bucket
+    s3.put_public_access_block(
+        Bucket=bucket, PublicAccessBlockConfiguration=public_access_block_config
+    )
+
+    click.echo(
+        f"Updated public access block settings for bucket '{bucket}': {public_access_block_config}",
+        err=True,
+    )
+
+
 def output(iterator, headers, nl, csv, tsv):
     if nl:
         for item in iterator: