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  • pkg/client/msp msp包

    一. pkg/client/msp 包msp支持在Fabric网络上创建和更新用户。 Msp客户端支持以下操作：Enroll，Reenroll，Register，Revoke和GetSigningIdentity。

    1. 基本流程:

      1）准备客户端上下文
      2）创建msp客户端
      3）注册用户
      4）注册用户

       1 ctx := mockClientProvider()
 2 
 3 // Create msp client
 4 c, err := New(ctx)
 5 if err != nil {
 6     fmt.Println("failed to create msp client")
 7     return
 8 }
 9 
10 username := randomUsername()
11 
12 enrollmentSecret, err := c.Register(&RegistrationRequest{Name: username})
13 if err != nil {
14     fmt.Printf("Register return error %s
", err)
15     return
16 }
17 
18 err = c.Enroll(username, WithSecret(enrollmentSecret))
19 if err != nil {
20     fmt.Printf("failed to enroll user: %s
", err)
21     return
22 }
23 fmt.Println("enroll user is completed")
      View Code

      输出:enroll user is completed

    2. 变量: 
      var (
    // ErrUserNotFound表示找不到用户
    ErrUserNotFound = errors.New("user not found")
)
    3. 类型Attribute: 
      type Attribute struct {
    Name  string
    Value string
    ECert bool
}: Attribute定义了在注册期间可以传递的其他属性
    4. 类型AttributeRequest: 
      type AttributeRequest struct {
    Name     string
    Optional bool
}: AttributeRequest是对attribute的请求。
    5. 类型Client: 
      type Client struct {
    // contains filtered or unexported fields
}: 客户端可以访问客户端服务
      1. func New(clientProvider context.ClientProvider, opts ...ClientOption) (*Client, error): New创建一个新的Client实例
        1. 例: 
           1 ctx := mockClientProvider()
 2 
 3 // Create msp client
 4 c, err := New(ctx)
 5 if err != nil {
 6     fmt.Println("failed to create msp client")
 7     return
 8 }
 9 
10 if c != nil {
11     fmt.Println("msp client created")
12 }
          View Code

          输出:msp client created

      2. func (c *Client) CreateIdentity(request *IdentityRequest) (*IdentityResponse, error): CreateIdentity使用Fabric CA服务器创建新标识。 返回登记密码，然后可以与登记ID一起使用以登记新身份。
        1. 参数:

          请求包含有关身份的信息

          返回：
          返回包含秘密的身份信息

        2. 例: 
           1 // Create msp client
 2 c, err := New(mockClientProvider())
 3 if err != nil {
 4     fmt.Println("failed to create msp client")
 5     return
 6 }
 7 
 8 identity, err := c.CreateIdentity(&IdentityRequest{ID: "123", Affiliation: "org2",
 9     Attributes: []Attribute{{Name: "attName1", Value: "attValue1"}}})
10 if err != nil {
11     fmt.Printf("Create identity return error %s
", err)
12     return
13 }
14 fmt.Printf("identity '%s' created
", identity.ID)
          View Code

          输出:identity '123' created

      3. func (c *Client) CreateSigningIdentity(opts ...mspctx.SigningIdentityOption) (mspctx.SigningIdentity, error): CreateSigningIdentity使用给定选项创建签名标识
        1. 例: 
           1 ctx := mockClientProvider()
 2 
 3 // Create msp client
 4 c, err := New(ctx)
 5 if err != nil {
 6     fmt.Println("failed to create msp client")
 7     return
 8 }
 9 
10 testPrivKey := `-----BEGIN PRIVATE KEY-----
11 MIGHAgEAMBMGByqGSM49AgEGCCqGSM49AwEHBG0wawIBAQQgp4qKKB0WCEfx7XiB
12 5Ul+GpjM1P5rqc6RhjD5OkTgl5OhRANCAATyFT0voXX7cA4PPtNstWleaTpwjvbS
13 J3+tMGTG67f+TdCfDxWYMpQYxLlE8VkbEzKWDwCYvDZRMKCQfv2ErNvb
14 -----END PRIVATE KEY-----`
15 
16 testCert := `-----BEGIN CERTIFICATE-----
17 MIICGTCCAcCgAwIBAgIRALR/1GXtEud5GQL2CZykkOkwCgYIKoZIzj0EAwIwczEL
18 MAkGA1UEBhMCVVMxEzARBgNVBAgTCkNhbGlmb3JuaWExFjAUBgNVBAcTDVNhbiBG
19 cmFuY2lzY28xGTAXBgNVBAoTEG9yZzEuZXhhbXBsZS5jb20xHDAaBgNVBAMTE2Nh
20 Lm9yZzEuZXhhbXBsZS5jb20wHhcNMTcwNzI4MTQyNzIwWhcNMjcwNzI2MTQyNzIw
21 WjBbMQswCQYDVQQGEwJVUzETMBEGA1UECBMKQ2FsaWZvcm5pYTEWMBQGA1UEBxMN
22 U2FuIEZyYW5jaXNjbzEfMB0GA1UEAwwWVXNlcjFAb3JnMS5leGFtcGxlLmNvbTBZ
23 MBMGByqGSM49AgEGCCqGSM49AwEHA0IABPIVPS+hdftwDg8+02y1aV5pOnCO9tIn
24 f60wZMbrt/5N0J8PFZgylBjEuUTxWRsTMpYPAJi8NlEwoJB+/YSs29ujTTBLMA4G
25 A1UdDwEB/wQEAwIHgDAMBgNVHRMBAf8EAjAAMCsGA1UdIwQkMCKAIIeR0TY+iVFf
26 mvoEKwaToscEu43ZXSj5fTVJornjxDUtMAoGCCqGSM49BAMCA0cAMEQCID+dZ7H5
27 AiaiI2BjxnL3/TetJ8iFJYZyWvK//an13WV/AiARBJd/pI5A7KZgQxJhXmmR8bie
28 XdsmTcdRvJ3TS/6HCA==
29 -----END CERTIFICATE-----`
30 
31 // Create signing identity based on certificate and private key
32 id, err := c.CreateSigningIdentity(msp.WithCert([]byte(testCert)), msp.WithPrivateKey([]byte(testPrivKey)))
33 if err != nil {
34     fmt.Printf("failed when creating identity based on certificate and private key: %s
", err)
35     return
36 }
37 if string(id.EnrollmentCertificate()) != testCert {
38     fmt.Printf("certificate mismatch
")
39     return
40 }
41 
42 // In this user case client might want to import keys directly into keystore
43 // out of band instead of enrolling the user via SDK. User enrolment creates a cert
44 // and stores it into local SDK user store, while user might not want SDK to manage certs.
45 err = importPrivateKeyOutOfBand([]byte(testPrivKey), c)
46 if err != nil {
47     fmt.Printf("failed to import key: %s
", err)
48     return
49 }
50 
51 // Create signing identity using certificate. SDK will lookup the private key based on the certificate.
52 id, err = c.CreateSigningIdentity(msp.WithCert([]byte(testCert)))
53 if err != nil {
54     fmt.Printf("failed when creating identity using certificate: %s
", err)
55     return
56 }
57 if string(id.EnrollmentCertificate()) != testCert {
58     fmt.Printf("certificate mismatch
")
59     return
60 }
61 
62 fmt.Println("create signing identity is completed")
          View Code

          输出:create signing identity is completed

      4. func (c *Client) Enroll(enrollmentID string, opts ...EnrollmentOption) error: 注册注册用户以便接收签名的X509证书。为用户生成新的密钥对。由CA颁发的私钥和注册证书存储在SDK存储库中。可以通过调用IdentityManager.GetSigningIdentity()来检索它们。
        1. 参数:

          enrollmentID注册用户的注册ID
          opts是可选的注册选项

          返回：
          如果注册失败，则会出错

        2. 例: 
           1 ctx := mockClientProvider()
 2 
 3 // Create msp client
 4 c, err := New(ctx)
 5 if err != nil {
 6     fmt.Println("failed to create msp client")
 7     return
 8 }
 9 
10 err = c.Enroll(randomUsername(), WithSecret("enrollmentSecret"))
11 if err != nil {
12     fmt.Printf("failed to enroll user: %s
", err)
13     return
14 }
15 fmt.Println("enroll user is completed")
          View Code

          输出:enroll user is completed

      5. func (c *Client) GetAllIdentities(options ...RequestOption) ([]*IdentityResponse, error): GetAllIdentities返回调用者有权查看的所有身份
        1. 参数:

          options包含可选的请求选项
          返回：
          包含身份的回复

        2. 例: 
           1 // Create msp client
 2 c, err := New(mockClientProvider())
 3 if err != nil {
 4     fmt.Println("failed to create msp client")
 5     return
 6 }
 7 
 8 results, err := c.GetAllIdentities()
 9 if err != nil {
10     fmt.Printf("Get identities return error %s
", err)
11     return
12 }
13 fmt.Printf("%d identities retrieved
", len(results))
          View Code

          输出:2 identities retrieved

      6. func (c *Client) GetIdentity(ID string, options ...RequestOption) (*IdentityResponse, error): GetIdentity检索身份信息

        1. ID是必需的身份ID
          options包含可选的请求选项

          返回：
          包含身份信息的回复

        2. 例: 
           1 // Create msp client
 2 c, err := New(mockClientProvider())
 3 if err != nil {
 4     fmt.Println("failed to create msp client")
 5     return
 6 }
 7 
 8 identity, err := c.GetIdentity("123")
 9 if err != nil {
10     fmt.Printf("Get identity return error %s
", err)
11     return
12 }
13 fmt.Printf("identity '%s' retrieved
", identity.ID)
          View Code

          输出:identity '123' retrieved

      7. func (c *Client) GetSigningIdentity(id string) (mspctx.SigningIdentity, error): GetSigningIdentity返回id的签名身份
        1. 参数:

          id是用户ID

          返回：
          签署身份

        2. 例: 
           1 ctx := mockClientProvider()
 2 
 3 // Create msp client
 4 c, err := New(ctx)
 5 if err != nil {
 6     fmt.Println("failed to create msp client")
 7     return
 8 }
 9 
10 username := randomUsername()
11 
12 err = c.Enroll(username, WithSecret("enrollmentSecret"))
13 if err != nil {
14     fmt.Printf("failed to enroll user: %s
", err)
15     return
16 }
17 enrolledUser, err := c.GetSigningIdentity(username)
18 if err != nil {
19     fmt.Printf("user not found %s
", err)
20     return
21 }
22 
23 if enrolledUser.Identifier().ID != username {
24     fmt.Println("Enrolled user name doesn't match")
25     return
26 }
27 
28 fmt.Println("enroll user is complete
          View Code

          输出:enroll user is completed

      8. func (c *Client) ModifyIdentity(request *IdentityRequest) (*IdentityResponse, error): ModifyIdentity修改Fabric CA服务器的身份
        1. 参数:

          请求包含有关身份的信息

          返回：
          返回更新的身份信息

        2. 例: 
           1 // Create msp client
 2 c, err := New(mockClientProvider())
 3 if err != nil {
 4     fmt.Println("failed to create msp client")
 5     return
 6 }
 7 
 8 identity, err := c.ModifyIdentity(&IdentityRequest{ID: "123", Affiliation: "org2", Secret: "top-secret"})
 9 if err != nil {
10     fmt.Printf("Modify identity return error %s
", err)
11     return
12 }
13 fmt.Printf("identity '%s' modified
", identity.ID)
          View Code

          输出:identity '123' modified

      9. func (c *Client) Reenroll(enrollmentID string) error: 重新注册一个已注册用户，以便获得一个新的签名X509证书
        1. 参数:

          enrollmentID注册用户的注册ID

          返回：
          如果重新注册失败，则会出错

        2. 例: 
           1 ctx := mockClientProvider()
 2 
 3 // Create msp client
 4 c, err := New(ctx)
 5 if err != nil {
 6     fmt.Println("failed to create msp client")
 7     return
 8 }
 9 
10 username := randomUsername()
11 
12 err = c.Enroll(username, WithSecret("enrollmentSecret"))
13 if err != nil {
14     fmt.Printf("failed to enroll user: %s
", err)
15     return
16 }
17 
18 err = c.Reenroll(username)
19 if err != nil {
20     fmt.Printf("failed to reenroll user: %s
", err)
21     return
22 }
23 
24 fmt.Println("reenroll user is completed")
          View Code

          输出:reenroll user is completed

      10. func (c *Client) Register(request *RegistrationRequest) (string, error): 注册使用Fabric CA注册用户
        1. 参数:

          请求是注册请求

          返回：
          注册秘密

        2. 例: 
           1 ctx := mockClientProvider()
 2 
 3 // Create msp client
 4 c, err := New(ctx)
 5 if err != nil {
 6     fmt.Println("failed to create msp client")
 7     return
 8 }
 9 
10 _, err = c.Register(&RegistrationRequest{Name: randomUsername()})
11 if err != nil {
12     fmt.Printf("Register return error %s
", err)
13     return
14 }
15 fmt.Println("register user is completed")
          View Code

          输出:register user is completed

      11. func (c *Client) RemoveIdentity(request *RemoveIdentityRequest) (*IdentityResponse, error): RemoveIdentity删除Fabric CA服务器的标识。
        1. 参数:

          请求保存有关要删除的身份的信息

          返回：
          返回已删除的身份信息

        2. 例: 
           1 // Create msp client
 2 c, err := New(mockClientProvider())
 3 if err != nil {
 4     fmt.Println("failed to create msp client")
 5     return
 6 }
 7 
 8 identity, err := c.RemoveIdentity(&RemoveIdentityRequest{ID: "123"})
 9 if err != nil {
10     fmt.Printf("Remove identity return error %s
", err)
11     return
12 }
13 fmt.Printf("identity '%s' removed
", identity.ID)
          View Code

          输出:identity '123' removed

      12. func (c *Client) Revoke(request *RevocationRequest) (*RevocationResponse, error): 撤消撤消使用Fabric CA的用户
        1. 参数:

          请求是撤销请求

          返回：
          撤销回应

        2. 例: 
           1 ctx := mockClientProvider()
 2 
 3 // Create msp client
 4 c, err := New(ctx)
 5 if err != nil {
 6     fmt.Println("failed to create msp client")
 7     return
 8 }
 9 
10 _, err = c.Revoke(&RevocationRequest{Name: "testuser"})
11 if err != nil {
12     fmt.Printf("revoke return error %s
", err)
13 }
14 fmt.Println("revoke user is completed")
          View Code

          输出:revoke user is completed

    6. 类型ClientOption: 
      type ClientOption func(*Client) error: ClientOption描述了New构造函数的功能参数
    7. func WithOrg(orgName string) ClientOption: WithOrg选项
      1. 例: 
         1 ctx := mockClientProvider()
 2 
 3 // Create msp client
 4 c, err := New(ctx, WithOrg("org1"))
 5 if err != nil {
 6     fmt.Println("failed to create msp client")
 7     return
 8 }
 9 
10 if c != nil {
11     fmt.Println("msp client created with org")
12 }
        View Code

        输出:msp client created with org

    8. 类型EnrollmentOption: 
      type EnrollmentOption func(*enrollmentOptions) error: EnrollmentOption描述了Enroll的功能参数
    9. 类型WithSecret: 
      func WithSecret(secret string) EnrollmentOption: WithSecret注册选项
      1. 例: 
         1 ctx := mockClientProvider()
 2 
 3 // Create msp client
 4 c, err := New(ctx)
 5 if err != nil {
 6     fmt.Println("failed to create msp client")
 7     return
 8 }
 9 
10 err = c.Enroll(randomUsername(), WithSecret("enrollmentSecret"))
11 if err != nil {
12     fmt.Printf("failed to enroll user: %s
", err)
13     return
14 }
15 fmt.Println("enroll user is completed")
        View Code

        输出:enroll user is completed

    10. 类型IdentityManager: 
      type IdentityManager interface {
    GetSigningIdentity(name string) (msp.SigningIdentity, error)
    CreateSigningIdentity(ops ...msp.SigningIdentityOption) (msp.SigningIdentity, error)
}: IdentityManager提供Fabric网络中的身份管理
    11. 类型IdentityRequest: 
      type IdentityRequest struct {

    // 唯一标识身份的enrollment ID（必填）
    ID  string

    // 身份的隶属关系（必填）
    Affiliation string

    // 要分配给用户的属性数组
    Attributes []Attribute

    // 正在注册的身份类型（例如“同伴，应用，用户”）。 默认为“用户”。
    Type string

    // 可以重复使用密钥进行注册的最大次数（默认CA的最大注册）
    MaxEnrollments int

    // 注册秘密。 如果未提供，则生成随机秘密
    Secret string

    // 在Fabric CA服务器内发送请求的CA的名称（可选）
    CAName string
}: IdentityRequest表示向fabric-ca-server添加/更新标识的请求
    12. 类型IdentityResponse: 
      type IdentityResponse struct {

    // 唯一标识身份的注册ID
    ID  string

    // 身份的隶属关系
    Affiliation string

    // 分配给用户的属性数组
    Attributes []Attribute

    // 身份类型（例如'peer，应用，用户'）
    Type string

    // 可以重复使用密钥进行注册的最大次数
    MaxEnrollments int

    // 注册秘密
    Secret string

    // CA的名称
    CAName string
}: IdentityResponse是来自任何读取/添加/修改/删除身份调用的响应
    13. 类型RegistrationRequest: 
      type RegistrationRequest struct {
    // Name是标识的唯一名称
    Name string
    // 正在注册的身份类型（例如“同行，应用，用户”）
    Type string
    // Max Enrollments是可以重新注册秘密的次数,如果省略，则默认为服务器上配置的最大注册数
    MaxEnrollments int
    // 身份的隶属关系，例如org1.department1
    Affiliation string
    // 与此标识关联的可选属性
    Attributes []Attribute
    // CAName是要连接的CA的名称
    CAName string

               // Secret是一个可选密码。 如果没有指定，
               //生成随机密码。 在这两种情况下，秘密
               //从注册中返回。

          Secret string
}: RegistrationRequest定义向CA注册用户所需的属性
    14. 类型RemoveIdentityRequest: 
      type RemoveIdentityRequest struct {

    // 唯一标识身份的enrollment ID
    ID  string

    // 强制删除
    Force bool

    // ca 名称
    CAName string
}: RemoveIdentityRequest表示从fabric-ca-server删除现有标识的请求
    15. 类型RequestOption: 
      type RequestOption func(ctx context.Client, opts *requestOptions) error: 每个Opts参数的RequestOption func
    16. func WithCA(caname string) RequestOption: WithCA允许指定可选的CA名称
      1. 例: 
         1 // Create msp client
 2 c, err := New(mockClientProvider())
 3 if err != nil {
 4     fmt.Println("failed to create msp client")
 5     return
 6 }
 7 
 8 results, err := c.GetAllIdentities(WithCA("CA"))
 9 if err != nil {
10     fmt.Printf("Get identities return error %s
", err)
11     return
12 }
13 fmt.Printf("%d identities retrieved
", len(results))
        View Code

        输出:2 identities retrieved

    17. 类型RevocationRequest: 
      type RevocationRequest struct {
    // 应撤销其证书的标识的名称
    // 如果省略该字段，则必须指定Serial和AKI。
    Name string
    // 要撤销的证书的序列号
    // 如果省略，则必须指定Name
    Serial string
    // 要撤销的证书的AKI（授权密钥标识符）
    AKI string
    // 原因是撤销的原因。 请参阅https://godoc.org/golang.org/x/crypto/ocsp
    // 有效值。 默认值为0（ocsp.Unspecified）。
    Reason string
    // CAName是要连接的CA的名称
    CAName string
}: RevocationRequest定义撤消CA凭据所需的属性
    18. 类型RevocationResponse: 
      type RevocationResponse struct {
    // RevokedCerts是已撤销的证书数组
    RevokedCerts []RevokedCert
    // CRL是PEM编码的证书吊销列表（CRL），其中包含所有未过期的吊销证书
    CRL []byte
}: RevocationResponse表示服务器对撤销请求的响应
    19. 类型RevokedCert: 
      type RevokedCert struct {
    // 撤销证书的序列号
    Serial string
    // 撤销证书的AKI
    AKI string
}: RevokedCert表示已撤销的证书
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  • 原文地址：https://www.cnblogs.com/apolov-fabric/p/9719360.html
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