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    Cross-Origin Access

    Terakhir diperbarui:2024-02-04 11:37:32
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      Overview

      This document provides an overview of APIs and SDK sample codes related to cross-origin access.
      API
      Operation
      Description
      Setting cross-origin access configuration
      Sets the cross-origin access permissions of a bucket
      Querying cross-origin access configuration
      Queries the cross-origin access configuration of a bucket
      Deleting cross-origin access configuration
      Deletes the cross-origin access configuration of a bucket

      Setting cross-origin configurations

      Note：
      1. Please ensure that the bucket supports cross-origin access before you begin configuring. Cross-origin access can be configured on the console. For details, see Getting Started.
      2. Make sure changing the cross-origin access configuration does not affect the cross-origin requests under the current origin.

      Feature description

      This API is used to configure the cross-origin resource sharing (CORS) permission of a bucket. You can set this configuration by passing in a configuration file in XML format of up to 64 KB in size. By default, the bucket owner has the permission to use this API and can grant such permission to other users.

      Sample request

      cos.putBucketCors({
          Bucket: 'examplebucket-1250000000', /*Required*/
          Region: 'COS_REGION',     /* Bucket region. Required */
          CORSRules: [{
              "AllowedOrigin": ["*"],
              "AllowedMethod": ["GET", "POST", "PUT", "DELETE", "HEAD"],
              "AllowedHeader": ["*"],
              "ExposeHeader": ["ETag", "x-cos-acl", "x-cos-version-id", "x-cos-delete-marker", "x-cos-server-side-encryption"],
              "MaxAgeSeconds": "5"
          }]
      }, function(err, data) {
          console.log(err || data);
      });

      Parameter description

      Parameter Name
      Description
      Type
      Required
      Bucket
      Bucket for which cross-origin access is configured in the format: BucketName-APPID
      String
      Yes
      Region
      Bucket region. For the enumerated values, see Regions and Access Domain Names
      String
      Yes
      CORSRules
      List of all the information on CORS configurations
      ObjectArray
      No
      - ID
      Sets the rule ID
      String
      No
      - AllowedMethods
      Allowed HTTP operations. Enumerated values: GET, PUT, HEAD, POST, DELETE
      StringArray
      Yes
      - AllowedOrigins
      Allowed access origin in the format: protocol://domain name[:port number], such as http://www.qq.com. Wildcard * is supported.
      StringArray
      Yes
      - AllowedHeaders
      Tells the server side when sending the OPTIONS request what user-defined HTTP request headers can be used for subsequent requests. Wildcard * is supported
      StringArray
      No
      - ExposeHeaders
      Sets the user-defined header information from the server side that the browser can receive
      StringArray
      No
      - MaxAgeSeconds
      Sets the validity period of the OPTIONS request result
      String
      No

      Callback function description

      function(err, data) { ... }
      Parameter Name
      Description
      Type
      err
      Object returned when an error (network error or service error) occurs. If the request is successful, this is null. For more information, see Error Codes
      Object
      - statusCode
      HTTP status code returned by the request, such as 200, 403, and 404
      Number
      - headers
      Header information returned by the request
      Object
      data
      Data returned when the request is successful. If the request fails, this is null.
      Object
      - statusCode
      HTTP status code returned by the request, such as 200, 403, and 404
      Number
      - headers
      Header information returned by the request
      Object

      Querying cross-origin configurations

      Feature description

      This API is used to query the cross-origin resource sharing (CORS, a W3C standard) configuration of a bucket. By default, the bucket owner has the permission to use this API and can grant such permission to other users.

      Sample request

      cos.getBucketCors({
          Bucket: 'examplebucket-1250000000', /*Required*/
          Region: 'COS_REGION',     /* Bucket region. Required */
      }, function(err, data) {
          console.log(err || data);
      });

      Sample response

      {
          "CORSRules": [{
              "MaxAgeSeconds": "5",
              "AllowedOrigins": ["*"],
              "AllowedHeaders": ["*"],
              "AllowedMethods": ["GET", "POST", "PUT", "DELETE", "HEAD"],
              "ExposeHeaders": ["ETag", "Content-Length", "x-cos-acl", "x-cos-version-id", "x-cos-request-id", "x-cos-delete-marker", "x-cos-server-side-encryption"]
          }],
          "statusCode": 200,
          "headers": {}
      }

      Parameter description

      Parameter Name
      Description
      Type
      Required
      Bucket
      Bucket for which cross-origin configuration is queried in the format: BucketName-APPID
      String
      Yes
      Region
      Bucket region. For the enumerated values, see Regions and Access Domain Names
      String
      Yes

      Callback function description

      function(err, data) { ... }
      Parameter Name
      Description
      Type
      err
      Object returned when an error (network error or service error) occurs. If the request is successful, this is null. For more information, see Error Codes.
      Object
      data
      Data returned when the request is successful. If the request fails, this is null.
      Object
      - CORSRules
      List of all the information on CORS configurations
      ObjectArray
      - AllowedMethods
      Allowed HTTP operations. Enumerated values: GET, PUT, HEAD, POST, DELETE
      StringArray
      - - AllowedOrigins
      Allowed access origin in the format: protocol://domain name[:port number], <br>such as http://www.qq.com. Wildcard * is supported
      StringArray
      - AllowedHeaders
      Tells the server what custom HTTP request headers can be used for subsequent requests when the OPTIONS request is sent. Wildcard * is supported
      StringArray
      - - ExposeHeaders
      Sets the user-defined header information from the server side that the browser can receive
      StringArray
      - - MaxAgeSeconds
      Sets the validity period of the OPTIONS request result
      String
      - - ID
      Configures the rule ID
      String

      Deleting cross-origin configurations

      Feature description

      This API is used to delete the cross-origin access configuration of a bucket.
      Note：
      1. Please note that if you delete the cross-origin access configuration of the current bucket, all cross-origin access requests will fail.
      2. We do not recommend using this method in a browser.

      Sample request

      cos.deleteBucketCors({
          Bucket: 'examplebucket-1250000000', /*Required*/
          Region: 'COS_REGION',     /* Bucket region. Required */
      }, function(err, data) {
          console.log(err || data);
      });

      Parameter description

      Parameter Name
      Description
      Type
      Required
      Bucket
      Bucket for which the cross-origin configuration is deleted in the format: BucketName-APPID
      String
      Yes
      Region
      Bucket region. For the enumerated values, see Regions and Access Domain Names
      String
      Yes

      Callback function description

      function(err, data) { ... }
      Parameter
      Description
      Type
      err
      Object returned when an error (network error or service error) occurs. If the request is successful, this is null. For more information, see Error Codes
      Object
      - statusCode
      HTTP status code returned by the request, such as 200, 403, and 404
      Number
      - headers
      Header information returned by the request
      Object
      data
      Data returned when the request is successful. If the request fails, this is null.
      Object
      - statusCode
      HTTP status code returned by the request, such as 200, 403, and 404
      Number
      - headers
      Header information returned by the request
      Object
      
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