scim 跨域身份管理介绍(一)
SCIM 全称 System for Cross-domain Identity Management,主要用于多租户的云应用身份管理。
概览
SCIM 2.0建立在一个对象模型上,所有SCIM对象都继承Resource,它有id,externalId和meta属性,RFC7643定义了扩展公共属性的User,Group和EnterpriseUser。
示例用户
- {
- "schemas": ["urn:ietf:params:scim:schemas:core:2.0:User"],
- "id":"2819c223-7f76-453a-919d-413861904646",
- "externalId":"bjensen",
- "meta":{
- "resourceType": "User",
- "created":"2011-08-01T18:29:49.793Z",
- "lastModified":"2011-08-01T18:29:49.793Z",
- "location":"https://example.com/v2/Users/2819c223...",
- "version":"W\/\"f250dd84f0671c3\""
- },
- "name":{
- "formatted": "Ms. Barbara J Jensen, III",
- "familyName": "Jensen",
- "givenName": "Barbara",
- "middleName": "Jane",
- "honorificPrefix": "Ms.",
- "honorificSuffix": "III"
- },
- "userName":"bjensen",
- "phoneNumbers":[
- {
- "value":"555-555-8377",
- "type":"work"
- }
- ],
- "emails":[
- {
- "value":"bjensen@example.com",
- "type":"work",
- "primary": true
- }
- ]
- }
上述用户属性并没有全部列出来,不过从这个示例中可以发现,资源的属性包括
1、简单属性,如userName,只是一个单一的值;
2、复杂属性,如name, 它的内部还有多个子属性;
3、多值属性,如phoneNumbers,一个User资源包含多个phoneNumber
操作
对资源的操作,SCIM提供了一套REST API,包含丰富但简单的操作集,支持从修改特定用户的特定属性到进行批量更新的所有内容:
- 创建(create): POST https://example.com/{v}/{resource}
- 读取 (read): GET https://example.com/{v}/{resource}/{id}
- 替换 (replace): PUT https://example.com/{v}/{resource}/{id}
- 删除 (delete):DELETE https://example.com/{v}/{resource}/{id}
- 更新 (update): PATCH https://example.com/{v}/{resource}/{id}
- 搜索 (search): GET https://example.com/{v}/{resource}?filter = {attribute} {op} {value}&sortBy = {attributeName}&sortOrder = {ascending | downcending}
- 批量(bulk): POST https://example.com/{v}/Bulk
规范说明
SCIM 2.0 于2015年9月在IETF下发布,主要包含三个RFC文件,即:RFC7642,RFC7643和RFC7644 ;
-
RFC7643 – SCIM:核心模式(Core Schema)
提供平台基础架构(用户和组)和扩展模型。
-
RFC7644 – SCIM:协议(Protocol)
SCIM协议是用于在Web上提供和管理身份数据的应用级REST协议。
-
RFC7642 – SCIM:定义,概述,概念和要求(Definitions, Overview, Concepts, and Requirements)
本文档列出了跨域身份管理系统(SCIM)的用户场景和使用案例。
参考网址:http://www.simplecloud.info/