Object Storage Service:Cross-origin resource sharing (Python SDK V2)

You can use the following code to configure CORS rules for a specific bucket.

import argparse import alibabacloud_oss_v2 as oss # Create a command-line argument parser and describe the purpose of the script: Configure CORS for a bucket. parser = argparse.ArgumentParser(description="put bucket cors sample") # Define command-line arguments, including the required region and bucket name, and the optional endpoint and response_vary. parser.add_argument('--region', help='The region in which the bucket is located.', required=True) parser.add_argument('--bucket', help='The name of the bucket.', required=True) parser.add_argument('--endpoint', help='The domain names that other services can use to access OSS') parser.add_argument('--response_vary', help='Indicates whether the Vary: Origin header was returned. Default value: false', default='false') def main(): # Parse command-line arguments to obtain the values entered by the user. args = parser.parse_args() # Load access credential information from environment variables for identity verification. credentials_provider = oss.credentials.EnvironmentVariableCredentialsProvider() # Use the default configurations of the SDK to create a configuration object and set the authentication provider. cfg = oss.config.load_default() cfg.credentials_provider = credentials_provider # Set the region property of the configuration object based on the command-line arguments provided by the user. cfg.region = args.region # If a custom endpoint is provided, update the endpoint property in the configuration object. if args.endpoint is not None: cfg.endpoint = args.endpoint # Use the preceding configurations to initialize the OSS client to interact with OSS. client = oss.Client(cfg) # Send a request to configure CORS for the specified bucket. result = client.put_bucket_cors(oss.PutBucketCorsRequest( bucket=args.bucket, # The bucket name. cors_configuration=oss.CORSConfiguration( cors_rules=[ # The first CORS rule. oss.CORSRule( allowed_origins=['*'], # Allow all origins. allowed_methods=['GET', 'HEAD'], # The allowed methods. allowed_headers=['GET'], # The allowed request headers. expose_headers=['x-oss-test', 'x-oss-test1'], # The exposed response headers. max_age_seconds=33012, # The validity period of the preflight request. ), # The second CORS rule. oss.CORSRule( allowed_origins=['http://www.example.com'], # Allow specific origins. allowed_methods=['PUT', 'POST'], # The allowed methods. allowed_headers=['*'], # Allow all request headers. expose_headers=['x-oss-test2', 'x-oss-test3'], # The exposed response headers. max_age_seconds=33012, # The validity period of the preflight request. ) ], response_vary=args.response_vary, # Specifies whether to return the Vary: Origin header. The default value is False. ), )) # Print the status code and request ID of the operation result to confirm the request status. print(f'status code: {result.status_code},' f' request id: {result.request_id},' ) # When this script is directly executed, call the main function to start the processing logic. if __name__ == "__main__": main() # The entry point of the script. The program flow starts here.

You can use the following code to query CORS rules.

import argparse import alibabacloud_oss_v2 as oss # Create a command-line argument parser and describe the purpose of the script: Query the CORS configuration of a bucket. parser = argparse.ArgumentParser(description="get bucket cors sample") # Define command-line arguments, including the required region and bucket name, and the optional endpoint. parser.add_argument('--region', help='The region in which the bucket is located.', required=True) parser.add_argument('--bucket', help='The name of the bucket.', required=True) parser.add_argument('--endpoint', help='The domain names that other services can use to access OSS') def main(): # Parse command-line arguments to obtain the values entered by the user. args = parser.parse_args() # Load access credential information from environment variables for identity verification. credentials_provider = oss.credentials.EnvironmentVariableCredentialsProvider() # Use the default configurations of the SDK to create a configuration object and set the authentication provider. cfg = oss.config.load_default() cfg.credentials_provider = credentials_provider # Set the region property of the configuration object based on the command-line arguments provided by the user. cfg.region = args.region # If a custom endpoint is provided, update the endpoint property in the configuration object. if args.endpoint is not None: cfg.endpoint = args.endpoint # Use the preceding configurations to initialize the OSS client to interact with OSS. client = oss.Client(cfg) # Send a request to query the CORS configuration of the specified bucket. result = client.get_bucket_cors(oss.GetBucketCorsRequest( bucket=args.bucket, # The bucket name. )) # Print the status code, request ID, and response vary value of the operation result. print(f'status code: {result.status_code},' f' request id: {result.request_id},' f' response vary: {result.cors_configuration.response_vary},' ) # Traverse and print the details of each CORS rule. for r in result.cors_configuration.cors_rules: print(f'result: {r.max_age_seconds}, {r.allowed_origins}, {r.allowed_methods}, {r.allowed_headers}, {r.expose_headers}') # When this script is directly executed, call the main function to start the processing logic. if __name__ == "__main__": main() # The entry point of the script. The program flow starts here.

You can use the following code to delete all CORS rules of a specific bucket.

import argparse import alibabacloud_oss_v2 as oss # Create a command-line argument parser and describe the purpose of the script: Delete the CORS configuration of a bucket. parser = argparse.ArgumentParser(description="delete bucket cors sample") # Define command-line arguments, including the required region and bucket name, and the optional endpoint. parser.add_argument('--region', help='The region in which the bucket is located.', required=True) parser.add_argument('--bucket', help='The name of the bucket.', required=True) parser.add_argument('--endpoint', help='The domain names that other services can use to access OSS') def main(): # Parse command-line arguments to obtain the values entered by the user. args = parser.parse_args() # Load access credential information from environment variables for identity verification. credentials_provider = oss.credentials.EnvironmentVariableCredentialsProvider() # Use the default configurations of the SDK to create a configuration object and set the authentication provider. cfg = oss.config.load_default() cfg.credentials_provider = credentials_provider # Set the region property of the configuration object based on the command-line arguments provided by the user. cfg.region = args.region # If a custom endpoint is provided, update the endpoint property in the configuration object. if args.endpoint is not None: cfg.endpoint = args.endpoint # Use the preceding configurations to initialize the OSS client to interact with OSS. client = oss.Client(cfg) # Send a request to delete the CORS configuration of the specified bucket. result = client.delete_bucket_cors(oss.DeleteBucketCorsRequest( bucket=args.bucket, # The bucket name. )) # Print the status code and request ID of the operation result to confirm the request status. print(f'status code: {result.status_code},' f' request id: {result.request_id},' ) # When this script is directly executed, call the main function to start the processing logic. if __name__ == "__main__": main() # The entry point of the script. The program flow starts here.