Fabric区块链浏览器（3）-牛翰网

本文是区块链浏览器系列的第五篇，项目完整代码在这里。

在上一篇文章中给浏览器增加了简单的用户认证，至此浏览器的基本功能就已经大致完成了。

在这片文章中，我将使用kratos对区块链浏览器器进行重构，使之同时支持http和gRPC。

1. 项目结构

项目结构如下：


$ tree
.
├── api                                     
│   └── browser
│       └── v1
│           ├── block_grpc.pb.go
│           ├── block_http.pb.go
│           ├── block.pb.go
│           ├── block.proto
│           ├── browser_grpc.pb.go
│           ├── browser_http.pb.go
│           ├── browser.pb.go
│           └── browser.proto
├── cmd
│   └── example
│       ├── main.go
│       ├── wire_gen.go
│       └── wire.go
├── configs
│   └── config.yaml
├── Dockerfile
├── go.mod
├── go.sum
├── internal
│   ├── biz
│   │   ├── account.go
│   │   ├── biz.go
│   │   ├── README.md
│   │   └── repo.go
│   ├── conf
│   │   ├── conf.pb.go
│   │   └── conf.proto
│   ├── data
│   │   ├── account.go
│   │   ├── data.go
│   │   └── README.md
│   ├── db
│   │   ├── db.go
│   │   ├── mysql
│   │   │   └── mysql.go
│   │   ├── pg
│   │   │   └── pg.go
│   │   └── sqlite3
│   │       └── sqlite3.go
│   ├── server
│   │   ├── grpc.go
│   │   ├── http.go
│   │   └── server.go
│   ├── service
│   │   ├── block.go
│   │   ├── browser.go
│   │   ├── global.go
│   │   ├── README.md
│   │   ├── service.go
│   │   └── utils.go
│   └── utils
│       ├── putils.go
│       └── utils.go
├── LICENSE
├── Makefile
├── openapi.yaml
├── README.md
└── third_party
    ├── errors
    │   └── errors.proto
    ├── google
    │   ├── api
    │   │   ├── annotations.proto
    │   │   ├── client.proto
    │   │   ├── field_behavior.proto
    │   │   ├── httpbody.proto
    │   │   └── http.proto
    │   └── protobuf
    │       ├── any.proto
    │       ├── api.proto
    │       ├── compiler
    │       │   └── plugin.proto
    │       ├── descriptor.proto
    │       ├── duration.proto
    │       ├── empty.proto
    │       ├── field_mask.proto
    │       ├── source_context.proto
    │       ├── struct.proto
    │       ├── timestamp.proto
    │       ├── type.proto
    │       └── wrappers.proto
    ├── openapi
    │   └── v3
    │       ├── annotations.proto
    │       └── openapi.proto
    ├── README.md
    └── validate
        ├── README.md
        └── validate.proto
26 directories, 66 files
$ tree
.
├── api                                     
│   └── browser
│       └── v1
│           ├── block_grpc.pb.go
│           ├── block_http.pb.go
│           ├── block.pb.go
│           ├── block.proto
│           ├── browser_grpc.pb.go
│           ├── browser_http.pb.go
│           ├── browser.pb.go
│           └── browser.proto
├── cmd
│   └── example
│       ├── main.go
│       ├── wire_gen.go
│       └── wire.go
├── configs
│   └── config.yaml
├── Dockerfile
├── go.mod
├── go.sum
├── internal
│   ├── biz
│   │   ├── account.go
│   │   ├── biz.go
│   │   ├── README.md
│   │   └── repo.go
│   ├── conf
│   │   ├── conf.pb.go
│   │   └── conf.proto
│   ├── data
│   │   ├── account.go
│   │   ├── data.go
│   │   └── README.md
│   ├── db
│   │   ├── db.go
│   │   ├── mysql
│   │   │   └── mysql.go
│   │   ├── pg
│   │   │   └── pg.go
│   │   └── sqlite3
│   │       └── sqlite3.go
│   ├── server
│   │   ├── grpc.go
│   │   ├── http.go
│   │   └── server.go
│   ├── service
│   │   ├── block.go
│   │   ├── browser.go
│   │   ├── global.go
│   │   ├── README.md
│   │   ├── service.go
│   │   └── utils.go
│   └── utils
│       ├── putils.go
│       └── utils.go
├── LICENSE
├── Makefile
├── openapi.yaml
├── README.md
└── third_party
    ├── errors
    │   └── errors.proto
    ├── google
    │   ├── api
    │   │   ├── annotations.proto
    │   │   ├── client.proto
    │   │   ├── field_behavior.proto
    │   │   ├── httpbody.proto
    │   │   └── http.proto
    │   └── protobuf
    │       ├── any.proto
    │       ├── api.proto
    │       ├── compiler
    │       │   └── plugin.proto
    │       ├── descriptor.proto
    │       ├── duration.proto
    │       ├── empty.proto
    │       ├── field_mask.proto
    │       ├── source_context.proto
    │       ├── struct.proto
    │       ├── timestamp.proto
    │       ├── type.proto
    │       └── wrappers.proto
    ├── openapi
    │   └── v3
    │       ├── annotations.proto
    │       └── openapi.proto
    ├── README.md
    └── validate
        ├── README.md
        └── validate.proto

26 directories, 66 files
$ tree
.
├── api                                     
│   └── browser
│       └── v1
│           ├── block_grpc.pb.go
│           ├── block_http.pb.go
│           ├── block.pb.go
│           ├── block.proto
│           ├── browser_grpc.pb.go
│           ├── browser_http.pb.go
│           ├── browser.pb.go
│           └── browser.proto
├── cmd
│   └── example
│       ├── main.go
│       ├── wire_gen.go
│       └── wire.go
├── configs
│   └── config.yaml
├── Dockerfile
├── go.mod
├── go.sum
├── internal
│   ├── biz
│   │   ├── account.go
│   │   ├── biz.go
│   │   ├── README.md
│   │   └── repo.go
│   ├── conf
│   │   ├── conf.pb.go
│   │   └── conf.proto
│   ├── data
│   │   ├── account.go
│   │   ├── data.go
│   │   └── README.md
│   ├── db
│   │   ├── db.go
│   │   ├── mysql
│   │   │   └── mysql.go
│   │   ├── pg
│   │   │   └── pg.go
│   │   └── sqlite3
│   │       └── sqlite3.go
│   ├── server
│   │   ├── grpc.go
│   │   ├── http.go
│   │   └── server.go
│   ├── service
│   │   ├── block.go
│   │   ├── browser.go
│   │   ├── global.go
│   │   ├── README.md
│   │   ├── service.go
│   │   └── utils.go
│   └── utils
│       ├── putils.go
│       └── utils.go
├── LICENSE
├── Makefile
├── openapi.yaml
├── README.md
└── third_party
    ├── errors
    │   └── errors.proto
    ├── google
    │   ├── api
    │   │   ├── annotations.proto
    │   │   ├── client.proto
    │   │   ├── field_behavior.proto
    │   │   ├── httpbody.proto
    │   │   └── http.proto
    │   └── protobuf
    │       ├── any.proto
    │       ├── api.proto
    │       ├── compiler
    │       │   └── plugin.proto
    │       ├── descriptor.proto
    │       ├── duration.proto
    │       ├── empty.proto
    │       ├── field_mask.proto
    │       ├── source_context.proto
    │       ├── struct.proto
    │       ├── timestamp.proto
    │       ├── type.proto
    │       └── wrappers.proto
    ├── openapi
    │   └── v3
    │       ├── annotations.proto
    │       └── openapi.proto
    ├── README.md
    └── validate
        ├── README.md
        └── validate.proto

26 directories, 66 files

api 定义接口
- block.prot：区块上传和区块解析的接口
- browser：用户认证相关接口，包括用户注册、用户登录以及刷新token
cmd：本地调试使用，基于wire实现
configs：存放项目的配置文件
internal：业务逻辑实现
- biz：类似DTO，封装数据库操作
- conf：定义项目配置项
- data：数据处理，目前主要是处理用户认证相关数据
- db：数据库操作实现
- server：注册http和gRPC服务
- service：实现浏览器业务逻辑
- utils：工具类
third_party：依赖的第三方库，主要是protobuf相关的第三方库

2. api接口定义

block.proto中定义区块上传和解析操作：


syntax = "proto3";
package api.browser.v1;
option go_package = "mengbin92/browser/api/browser/v1;v1";
import "google/api/annotations.proto";
service Block {
  rpc UpChaincode(UploadRequest) returns (UploadResponse) {
    option (google.api.http) = {
      post : "/v1/block/up"
      body : "*"
    };
  };
  rpc ParseBlock(ParseRequest) returns (ParseResponse) {
    option (google.api.http) = {
      get : "/v1/block/parse"
    };
  }
}
message UploadRequest {
  string name = 1;
  bytes content = 2;
}
message UploadResponse {
  bool result = 1;
  string name = 2;
}
message ParseRequest {
  enum BlockOperation {
    BLOCK = 0;
    HEADER = 1;
    DATA = 2;
    CONFIG = 3;
    CHAINCODE = 4;
    ACTIONS = 5;
    TRANSACTION = 6;
    INPUT = 7;
    RWSET = 8;
    CHANNEL = 9;
    ENDORSEMENTS = 10;
    CREATOR = 11;
    METADATA = 12;
  }
  string name = 1;
  BlockOperation operation = 2;
}
message ParseResponse { bytes data = 1; }
message Endorser {
  string MSP = 1;
  string Name = 2;
}
message Endorsers { repeated Endorser endorsers = 1; }
syntax = "proto3";

package api.browser.v1;

option go_package = "mengbin92/browser/api/browser/v1;v1";

import "google/api/annotations.proto";

service Block {
  rpc UpChaincode(UploadRequest) returns (UploadResponse) {
    option (google.api.http) = {
      post : "/v1/block/up"
      body : "*"
    };
  };
  rpc ParseBlock(ParseRequest) returns (ParseResponse) {
    option (google.api.http) = {
      get : "/v1/block/parse"
    };
  }
}

message UploadRequest {
  string name = 1;
  bytes content = 2;
}

message UploadResponse {
  bool result = 1;
  string name = 2;
}

message ParseRequest {
  enum BlockOperation {
    BLOCK = 0;
    HEADER = 1;
    DATA = 2;
    CONFIG = 3;
    CHAINCODE = 4;
    ACTIONS = 5;
    TRANSACTION = 6;
    INPUT = 7;
    RWSET = 8;
    CHANNEL = 9;
    ENDORSEMENTS = 10;
    CREATOR = 11;
    METADATA = 12;
  }
  string name = 1;
  BlockOperation operation = 2;
}

message ParseResponse { bytes data = 1; }

message Endorser {
  string MSP = 1;
  string Name = 2;
}
message Endorsers { repeated Endorser endorsers = 1; }
syntax = "proto3";

package api.browser.v1;

option go_package = "mengbin92/browser/api/browser/v1;v1";

import "google/api/annotations.proto";

service Block {
  rpc UpChaincode(UploadRequest) returns (UploadResponse) {
    option (google.api.http) = {
      post : "/v1/block/up"
      body : "*"
    };
  };
  rpc ParseBlock(ParseRequest) returns (ParseResponse) {
    option (google.api.http) = {
      get : "/v1/block/parse"
    };
  }
}

message UploadRequest {
  string name = 1;
  bytes content = 2;
}

message UploadResponse {
  bool result = 1;
  string name = 2;
}

message ParseRequest {
  enum BlockOperation {
    BLOCK = 0;
    HEADER = 1;
    DATA = 2;
    CONFIG = 3;
    CHAINCODE = 4;
    ACTIONS = 5;
    TRANSACTION = 6;
    INPUT = 7;
    RWSET = 8;
    CHANNEL = 9;
    ENDORSEMENTS = 10;
    CREATOR = 11;
    METADATA = 12;
  }
  string name = 1;
  BlockOperation operation = 2;
}

message ParseResponse { bytes data = 1; }

message Endorser {
  string MSP = 1;
  string Name = 2;
}
message Endorsers { repeated Endorser endorsers = 1; }

browser.proto定义用户注册、登录和token刷新操作：


syntax = "proto3";
package api.browser.v1;
option go_package = "mengbin92/browser/api/browser/v1;v1";
import "google/protobuf/timestamp.proto";
import "google/api/annotations.proto";
service Browser {
  rpc GetToken(Login) returns (LoginResponse) {
    option (google.api.http) = {
      post : "/v1/user/login"
      body : "*"
    };
  };
  rpc Regisger(Login) returns (LoginResponse) {
    option (google.api.http) = {
      post : "/v1/user/register"
      body : "*"
    };
  };
  rpc RefreshToken(RefreshRequest) returns (LoginResponse) {
    option (google.api.http) = {
      get : "/v1/user/refresh/{id}"
    };
  };
}
message User {
  uint64 id = 1;
  string name = 2;
  string password = 3;
  string salt = 4;
  google.protobuf.Timestamp create_at = 5;
  google.protobuf.Timestamp update_at = 6;
  google.protobuf.Timestamp delete_at = 7;
}
message LoginResponse {
  string token = 1;
  int64 expire = 2;
  uint64 id = 3;
  string username = 4;
}
message Login {
  string username = 1;
  string password = 2;
}
message RefreshRequest { uint64 id = 1; }
syntax = "proto3";

package api.browser.v1;

option go_package = "mengbin92/browser/api/browser/v1;v1";

import "google/protobuf/timestamp.proto";
import "google/api/annotations.proto";

service Browser {
  rpc GetToken(Login) returns (LoginResponse) {
    option (google.api.http) = {
      post : "/v1/user/login"
      body : "*"
    };
  };
  rpc Regisger(Login) returns (LoginResponse) {
    option (google.api.http) = {
      post : "/v1/user/register"
      body : "*"
    };
  };
  rpc RefreshToken(RefreshRequest) returns (LoginResponse) {
    option (google.api.http) = {
      get : "/v1/user/refresh/{id}"
    };
  };
}

message User {
  uint64 id = 1;
  string name = 2;
  string password = 3;
  string salt = 4;
  google.protobuf.Timestamp create_at = 5;
  google.protobuf.Timestamp update_at = 6;
  google.protobuf.Timestamp delete_at = 7;
}

message LoginResponse {
  string token = 1;
  int64 expire = 2;
  uint64 id = 3;
  string username = 4;
}

message Login {
  string username = 1;
  string password = 2;
}

message RefreshRequest { uint64 id = 1; }
syntax = "proto3";

package api.browser.v1;

option go_package = "mengbin92/browser/api/browser/v1;v1";

import "google/protobuf/timestamp.proto";
import "google/api/annotations.proto";

service Browser {
  rpc GetToken(Login) returns (LoginResponse) {
    option (google.api.http) = {
      post : "/v1/user/login"
      body : "*"
    };
  };
  rpc Regisger(Login) returns (LoginResponse) {
    option (google.api.http) = {
      post : "/v1/user/register"
      body : "*"
    };
  };
  rpc RefreshToken(RefreshRequest) returns (LoginResponse) {
    option (google.api.http) = {
      get : "/v1/user/refresh/{id}"
    };
  };
}

message User {
  uint64 id = 1;
  string name = 2;
  string password = 3;
  string salt = 4;
  google.protobuf.Timestamp create_at = 5;
  google.protobuf.Timestamp update_at = 6;
  google.protobuf.Timestamp delete_at = 7;
}

message LoginResponse {
  string token = 1;
  int64 expire = 2;
  uint64 id = 3;
  string username = 4;
}

message Login {
  string username = 1;
  string password = 2;
}

message RefreshRequest { uint64 id = 1; }

在项目根目录下执行下面命令即可完成框架生成：


# 生成对应的go文件
$ make api
# 生成service文件
$ kratos proto server api/browser/v1/block.proto -t internal/service
$ kratos proto server api/browser/v1/browser.proto -t internal/service
# 生成对应的go文件
$ make api
# 生成service文件
$ kratos proto server api/browser/v1/block.proto -t internal/service
$ kratos proto server api/browser/v1/browser.proto -t internal/service
# 生成对应的go文件
$ make api
# 生成service文件
$ kratos proto server api/browser/v1/block.proto -t internal/service
$ kratos proto server api/browser/v1/browser.proto -t internal/service

3. biz介绍

biz定义了用户认证相关的接口，供service调用，接口内容如下：


type AccountRepo interface {
    // 用户注册
  Register(context.Context, string, string) (*v1.LoginResponse, error)
    // 用户登录，用于获取token
  Login(context.Context, string, string) (*v1.LoginResponse, error)
    // 刷新token
  RefreshToken(context.Context, uint64) (*v1.LoginResponse, error)
}
type AccountRepo interface {
    // 用户注册
  Register(context.Context, string, string) (*v1.LoginResponse, error)
    // 用户登录，用于获取token
  Login(context.Context, string, string) (*v1.LoginResponse, error)
    // 刷新token
  RefreshToken(context.Context, uint64) (*v1.LoginResponse, error)
}
type AccountRepo interface {
    // 用户注册
	Register(context.Context, string, string) (*v1.LoginResponse, error)
    // 用户登录，用于获取token
	Login(context.Context, string, string) (*v1.LoginResponse, error)
    // 刷新token
	RefreshToken(context.Context, uint64) (*v1.LoginResponse, error)
}

4. conf介绍

conf定义项目的配置项，也是通过protobuf定义的：


syntax = "proto3";
package browser.api;
option go_package = "mengbin92/browser/internal/conf;conf";
import "google/protobuf/duration.proto";
message Bootstrap {
  Server server = 1;
  Log log = 2;
  Data data = 3;
}
message Server {
  message HTTP {
    string network = 1;
    string addr = 2;
    google.protobuf.Duration timeout = 3;
  }
  message GRPC {
    string network = 1;
    string addr = 2;
    google.protobuf.Duration timeout = 3;
  }
  enum AuthType{
    TOKENAUTH = 0;
    BASICAUTH = 1;
    NOAUTH = 2;
  }
  HTTP http = 1;
  GRPC grpc = 2;
  TLS tls = 3;
  // 2: no auth; 1: basic auth; default: 0, token auth
  AuthType auth_type = 4;
  Auth auth = 5;
}
message TLS {
  // 是否启用tls
  bool enbale = 1;
  // 证书路径
  string cert = 2;
  // 对应私钥路径
  string key = 3;
}
message Log {
  // 日志级别设置
  // 支持debug(-1)、info(0)、warn(1)、error(2)、dpanic(3)、panic(4)、fatal(5)
  int32 level = 1;
  // 日志输出格式，支持json or console
  string format = 2;
}
message Database {
  // 数据库类型：mysql、sqlite3、postgres
  string driver = 1;
  string source = 2;
  // 最大空闲连接数
  int64 max_idle_conn = 3;
  // 最大连接数
  int64 max_open_conn = 4;
  // 连接空闲超时参数
  google.protobuf.Duration conn_max_lifetime = 5;
}
message Redis {
  string network = 1;
  string addr = 2;
  string password = 3;
  int32 db = 4;
  google.protobuf.Duration dial_timeout = 5;
  google.protobuf.Duration read_timeout = 6;
  google.protobuf.Duration write_timeout = 7;
}
message Data {
  Database database = 1;
  Redis redis = 2;
}
message Auth {
  // jwt 秘钥，暂未启用
  string jwt_secret = 1;
  // token过期时间
  google.protobuf.Duration expire = 2;
}
syntax = "proto3";

package browser.api;

option go_package = "mengbin92/browser/internal/conf;conf";

import "google/protobuf/duration.proto";

message Bootstrap {
  Server server = 1;
  Log log = 2;
  Data data = 3;
}

message Server {
  message HTTP {
    string network = 1;
    string addr = 2;
    google.protobuf.Duration timeout = 3;
  }
  message GRPC {
    string network = 1;
    string addr = 2;
    google.protobuf.Duration timeout = 3;
  }
  enum AuthType{
    TOKENAUTH = 0;
    BASICAUTH = 1;
    NOAUTH = 2;
  }
  HTTP http = 1;
  GRPC grpc = 2;
  TLS tls = 3;
  // 2: no auth; 1: basic auth; default: 0, token auth
  AuthType auth_type = 4;
  Auth auth = 5;
}

message TLS {
  // 是否启用tls
  bool enbale = 1;
  // 证书路径
  string cert = 2;
  // 对应私钥路径
  string key = 3;
}

message Log {
  // 日志级别设置
  // 支持debug(-1)、info(0)、warn(1)、error(2)、dpanic(3)、panic(4)、fatal(5)
  int32 level = 1;
  // 日志输出格式，支持json or console
  string format = 2;
}

message Database {
  // 数据库类型：mysql、sqlite3、postgres
  string driver = 1;
  string source = 2;
  // 最大空闲连接数
  int64 max_idle_conn = 3;
  // 最大连接数
  int64 max_open_conn = 4;
  // 连接空闲超时参数
  google.protobuf.Duration conn_max_lifetime = 5;
}
message Redis {
  string network = 1;
  string addr = 2;
  string password = 3;
  int32 db = 4;
  google.protobuf.Duration dial_timeout = 5;
  google.protobuf.Duration read_timeout = 6;
  google.protobuf.Duration write_timeout = 7;
}

message Data {
  Database database = 1;
  Redis redis = 2;
}

message Auth {
  // jwt 秘钥，暂未启用
  string jwt_secret = 1;
  // token过期时间
  google.protobuf.Duration expire = 2;
}
syntax = "proto3";

package browser.api;

option go_package = "mengbin92/browser/internal/conf;conf";

import "google/protobuf/duration.proto";

message Bootstrap {
  Server server = 1;
  Log log = 2;
  Data data = 3;
}

message Server {
  message HTTP {
    string network = 1;
    string addr = 2;
    google.protobuf.Duration timeout = 3;
  }
  message GRPC {
    string network = 1;
    string addr = 2;
    google.protobuf.Duration timeout = 3;
  }
  enum AuthType{
    TOKENAUTH = 0;
    BASICAUTH = 1;
    NOAUTH = 2;
  }
  HTTP http = 1;
  GRPC grpc = 2;
  TLS tls = 3;
  // 2: no auth; 1: basic auth; default: 0, token auth
  AuthType auth_type = 4;
  Auth auth = 5;
}

message TLS {
  // 是否启用tls
  bool enbale = 1;
  // 证书路径
  string cert = 2;
  // 对应私钥路径
  string key = 3;
}

message Log {
  // 日志级别设置
  // 支持debug(-1)、info(0)、warn(1)、error(2)、dpanic(3)、panic(4)、fatal(5)
  int32 level = 1;
  // 日志输出格式，支持json or console
  string format = 2;
}

message Database {
  // 数据库类型：mysql、sqlite3、postgres
  string driver = 1;
  string source = 2;
  // 最大空闲连接数
  int64 max_idle_conn = 3;
  // 最大连接数
  int64 max_open_conn = 4;
  // 连接空闲超时参数
  google.protobuf.Duration conn_max_lifetime = 5;
}
message Redis {
  string network = 1;
  string addr = 2;
  string password = 3;
  int32 db = 4;
  google.protobuf.Duration dial_timeout = 5;
  google.protobuf.Duration read_timeout = 6;
  google.protobuf.Duration write_timeout = 7;
}

message Data {
  Database database = 1;
  Redis redis = 2;
}

message Auth {
  // jwt 秘钥，暂未启用
  string jwt_secret = 1;
  // token过期时间
  google.protobuf.Duration expire = 2;
}

5. data介绍

data中定义了AccountRepo结构，主要实现了biz中与数据库交互的业务逻辑：


type AccountRepo struct {
  data      *Data
  log       *log.Helper
  jwtSecret string
  expire    time.Duration
}
func NewAccountRepo(data *Data, logger log.Logger, auth *conf.Auth) biz.AccountRepo {
  return &AccountRepo{
    data:      data,
    log:       log.NewHelper(logger),
    jwtSecret: auth.JwtSecret,
    expire:    auth.Expire.AsDuration(),
  }
}
func genSalt() string {
  uid, _ := uuid.NewRandom()
  return uid.String()
}
func (ar *AccountRepo) Register(ctx context.Context, username, password string) (*v1.LoginResponse, error) {
  salt := genSalt()
  u := &User{
    Name:     username,
    Password: utils.CalcPassword(password, salt),
    Salt:     salt,
  }
  if err := ar.data.db.Save(u).Error; err != nil {
    ar.log.Errorf("save user data error: %s", err.Error())
    return nil, errors.Wrap(err, "save user error")
  }
  now := time.Now()
  tokenString, err := ar.genToken(uint64(u.ID), now)
  if err != nil {
    ar.log.Errorf("create token error: %s", err.Error())
    return nil, errors.Wrap(err, "create token error")
  }
  return &v1.LoginResponse{
    Token:    tokenString,
    Expire:   now.Add(ar.expire).Unix(),
    Id:       uint64(u.ID),
    Username: u.Name,
  }, nil
}
func (ar *AccountRepo) Login(ctx context.Context, username, password string) (*v1.LoginResponse, error) {
  user, err := ar.getUserByName(ctx, username)
  if err != nil {
    ar.log.Errorf("get user from data error: %s", err.Error())
    return nil, errors.Wrap(err, "GetUserByName error")
  }
  if utils.CalcPassword(password, user.Salt) != user.Password {
    ar.log.Error("user name or password is incorrect")
    return nil, errors.New("user name or password is incorrect")
  }
  now := time.Now()
  tokenString, err := ar.genToken(user.Id, now)
  if err != nil {
    ar.log.Errorf("create token error: %s", err.Error())
    return nil, errors.Wrap(err, "create token error")
  }
  return &v1.LoginResponse{
    Token:    tokenString,
    Expire:   now.Add(ar.expire).Unix(),
    Id:       user.Id,
    Username: user.Name,
  }, nil
}
func (ar *AccountRepo) RefreshToken(ctx context.Context, id uint64) (*v1.LoginResponse, error) {
  user, err := ar.getUserById(ctx, id)
  if err != nil {
    ar.log.Errorf("get user from data error: %s", err.Error())
    return nil, errors.Wrap(err, "GetUserByName error")
  }
  now := time.Now()
  tokenString, err := ar.genToken(user.Id, now)
  if err != nil {
    ar.log.Errorf("create token error: %s", err.Error())
    return nil, errors.Wrap(err, "create token error")
  }
  return &v1.LoginResponse{
    Token:    tokenString,
    Expire:   now.Add(ar.expire).Unix(),
    Id:       user.Id,
    Username: user.Name,
  }, nil
}
type AccountRepo struct {
  data      *Data
  log       *log.Helper
  jwtSecret string
  expire    time.Duration
}

func NewAccountRepo(data *Data, logger log.Logger, auth *conf.Auth) biz.AccountRepo {
  return &AccountRepo{
    data:      data,
    log:       log.NewHelper(logger),
    jwtSecret: auth.JwtSecret,
    expire:    auth.Expire.AsDuration(),
  }
}

func genSalt() string {
  uid, _ := uuid.NewRandom()
  return uid.String()
}

func (ar *AccountRepo) Register(ctx context.Context, username, password string) (*v1.LoginResponse, error) {
  salt := genSalt()
  u := &User{
    Name:     username,
    Password: utils.CalcPassword(password, salt),
    Salt:     salt,
  }
  if err := ar.data.db.Save(u).Error; err != nil {
    ar.log.Errorf("save user data error: %s", err.Error())
    return nil, errors.Wrap(err, "save user error")
  }

  now := time.Now()
  tokenString, err := ar.genToken(uint64(u.ID), now)
  if err != nil {
    ar.log.Errorf("create token error: %s", err.Error())
    return nil, errors.Wrap(err, "create token error")
  }

  return &v1.LoginResponse{
    Token:    tokenString,
    Expire:   now.Add(ar.expire).Unix(),
    Id:       uint64(u.ID),
    Username: u.Name,
  }, nil
}
func (ar *AccountRepo) Login(ctx context.Context, username, password string) (*v1.LoginResponse, error) {
  user, err := ar.getUserByName(ctx, username)
  if err != nil {
    ar.log.Errorf("get user from data error: %s", err.Error())
    return nil, errors.Wrap(err, "GetUserByName error")
  }

  if utils.CalcPassword(password, user.Salt) != user.Password {
    ar.log.Error("user name or password is incorrect")
    return nil, errors.New("user name or password is incorrect")
  }
  now := time.Now()
  tokenString, err := ar.genToken(user.Id, now)
  if err != nil {
    ar.log.Errorf("create token error: %s", err.Error())
    return nil, errors.Wrap(err, "create token error")
  }

  return &v1.LoginResponse{
    Token:    tokenString,
    Expire:   now.Add(ar.expire).Unix(),
    Id:       user.Id,
    Username: user.Name,
  }, nil
}
func (ar *AccountRepo) RefreshToken(ctx context.Context, id uint64) (*v1.LoginResponse, error) {
  user, err := ar.getUserById(ctx, id)
  if err != nil {
    ar.log.Errorf("get user from data error: %s", err.Error())
    return nil, errors.Wrap(err, "GetUserByName error")
  }

  now := time.Now()
  tokenString, err := ar.genToken(user.Id, now)
  if err != nil {
    ar.log.Errorf("create token error: %s", err.Error())
    return nil, errors.Wrap(err, "create token error")
  }

  return &v1.LoginResponse{
    Token:    tokenString,
    Expire:   now.Add(ar.expire).Unix(),
    Id:       user.Id,
    Username: user.Name,
  }, nil
}
type AccountRepo struct {
	data      *Data
	log       *log.Helper
	jwtSecret string
	expire    time.Duration
}

func NewAccountRepo(data *Data, logger log.Logger, auth *conf.Auth) biz.AccountRepo {
	return &AccountRepo{
		data:      data,
		log:       log.NewHelper(logger),
		jwtSecret: auth.JwtSecret,
		expire:    auth.Expire.AsDuration(),
	}
}

func genSalt() string {
	uid, _ := uuid.NewRandom()
	return uid.String()
}

func (ar *AccountRepo) Register(ctx context.Context, username, password string) (*v1.LoginResponse, error) {
	salt := genSalt()
	u := &User{
		Name:     username,
		Password: utils.CalcPassword(password, salt),
		Salt:     salt,
	}
	if err := ar.data.db.Save(u).Error; err != nil {
		ar.log.Errorf("save user data error: %s", err.Error())
		return nil, errors.Wrap(err, "save user error")
	}

	now := time.Now()
	tokenString, err := ar.genToken(uint64(u.ID), now)
	if err != nil {
		ar.log.Errorf("create token error: %s", err.Error())
		return nil, errors.Wrap(err, "create token error")
	}

	return &v1.LoginResponse{
		Token:    tokenString,
		Expire:   now.Add(ar.expire).Unix(),
		Id:       uint64(u.ID),
		Username: u.Name,
	}, nil
}
func (ar *AccountRepo) Login(ctx context.Context, username, password string) (*v1.LoginResponse, error) {
	user, err := ar.getUserByName(ctx, username)
	if err != nil {
		ar.log.Errorf("get user from data error: %s", err.Error())
		return nil, errors.Wrap(err, "GetUserByName error")
	}

	if utils.CalcPassword(password, user.Salt) != user.Password {
		ar.log.Error("user name or password is incorrect")
		return nil, errors.New("user name or password is incorrect")
	}
	now := time.Now()
	tokenString, err := ar.genToken(user.Id, now)
	if err != nil {
		ar.log.Errorf("create token error: %s", err.Error())
		return nil, errors.Wrap(err, "create token error")
	}

	return &v1.LoginResponse{
		Token:    tokenString,
		Expire:   now.Add(ar.expire).Unix(),
		Id:       user.Id,
		Username: user.Name,
	}, nil
}
func (ar *AccountRepo) RefreshToken(ctx context.Context, id uint64) (*v1.LoginResponse, error) {
	user, err := ar.getUserById(ctx, id)
	if err != nil {
		ar.log.Errorf("get user from data error: %s", err.Error())
		return nil, errors.Wrap(err, "GetUserByName error")
	}

	now := time.Now()
	tokenString, err := ar.genToken(user.Id, now)
	if err != nil {
		ar.log.Errorf("create token error: %s", err.Error())
		return nil, errors.Wrap(err, "create token error")
	}

	return &v1.LoginResponse{
		Token:    tokenString,
		Expire:   now.Add(ar.expire).Unix(),
		Id:       user.Id,
		Username: user.Name,
	}, nil
}

6. service介绍

service主要实现api中定义的接口：

block.go：


type BlockService struct {
  pb.UnimplementedBlockServer
}
func NewBlockService() *BlockService {
  return &BlockService{}
}
func (s *BlockService) UpChaincode(ctx context.Context, req *pb.UploadRequest) (*pb.UploadResponse, error) {
    // 与gin实现版本类似，客户端上传区块数据存储到服务端
  return &pb.UploadResponse{
    Result: true,
    Name:   req.Name,
  }, nil
}
func (s *BlockService) ParseBlock(ctx context.Context, req *pb.ParseRequest) (*pb.ParseResponse, error) {
    // 与gin实现版本逻辑类似，这里就不再赘述了
  return &pb.ParseResponse{}, nil
}
type BlockService struct {
  pb.UnimplementedBlockServer
}

func NewBlockService() *BlockService {
  return &BlockService{}
}

func (s *BlockService) UpChaincode(ctx context.Context, req *pb.UploadRequest) (*pb.UploadResponse, error) {
    // 与gin实现版本类似，客户端上传区块数据存储到服务端
  return &pb.UploadResponse{
    Result: true,
    Name:   req.Name,
  }, nil
}
func (s *BlockService) ParseBlock(ctx context.Context, req *pb.ParseRequest) (*pb.ParseResponse, error) {
    // 与gin实现版本逻辑类似，这里就不再赘述了
  return &pb.ParseResponse{}, nil
}
type BlockService struct {
	pb.UnimplementedBlockServer
}

func NewBlockService() *BlockService {
	return &BlockService{}
}

func (s *BlockService) UpChaincode(ctx context.Context, req *pb.UploadRequest) (*pb.UploadResponse, error) {
    // 与gin实现版本类似，客户端上传区块数据存储到服务端
	return &pb.UploadResponse{
		Result: true,
		Name:   req.Name,
	}, nil
}
func (s *BlockService) ParseBlock(ctx context.Context, req *pb.ParseRequest) (*pb.ParseResponse, error) {
    // 与gin实现版本逻辑类似，这里就不再赘述了
	return &pb.ParseResponse{}, nil
}

browser.go：


type BrowserService struct {
  account *biz.AccountUsecase
  pb.UnimplementedBrowserServer
}
func NewBrowserService(repo *biz.AccountUsecase, logger klog.Logger) *BrowserService {
  log = klog.NewHelper(logger)
  return &BrowserService{
    account: repo,
  }
}
func (s *BrowserService) GetToken(ctx context.Context, req *pb.Login) (*pb.LoginResponse, error) {
  return s.account.Login(ctx, req.Username, req.Password)
}
func (s *BrowserService) Regisger(ctx context.Context, req *pb.Login) (*pb.LoginResponse, error) {
  return s.account.Register(ctx, req.Username, req.Password)
}
func (s *BrowserService) RefreshToken(ctx context.Context, req *pb.RefreshRequest) (*pb.LoginResponse, error) {
  return s.account.RefreshToken(ctx, req.Id)
}
type BrowserService struct {
  account *biz.AccountUsecase
  pb.UnimplementedBrowserServer
}

func NewBrowserService(repo *biz.AccountUsecase, logger klog.Logger) *BrowserService {
  log = klog.NewHelper(logger)
  return &BrowserService{
    account: repo,
  }
}

func (s *BrowserService) GetToken(ctx context.Context, req *pb.Login) (*pb.LoginResponse, error) {
  return s.account.Login(ctx, req.Username, req.Password)
}
func (s *BrowserService) Regisger(ctx context.Context, req *pb.Login) (*pb.LoginResponse, error) {
  return s.account.Register(ctx, req.Username, req.Password)
}
func (s *BrowserService) RefreshToken(ctx context.Context, req *pb.RefreshRequest) (*pb.LoginResponse, error) {
  return s.account.RefreshToken(ctx, req.Id)
}
type BrowserService struct {
	account *biz.AccountUsecase
	pb.UnimplementedBrowserServer
}

func NewBrowserService(repo *biz.AccountUsecase, logger klog.Logger) *BrowserService {
	log = klog.NewHelper(logger)
	return &BrowserService{
		account: repo,
	}
}

func (s *BrowserService) GetToken(ctx context.Context, req *pb.Login) (*pb.LoginResponse, error) {
	return s.account.Login(ctx, req.Username, req.Password)
}
func (s *BrowserService) Regisger(ctx context.Context, req *pb.Login) (*pb.LoginResponse, error) {
	return s.account.Register(ctx, req.Username, req.Password)
}
func (s *BrowserService) RefreshToken(ctx context.Context, req *pb.RefreshRequest) (*pb.LoginResponse, error) {
	return s.account.RefreshToken(ctx, req.Id)
}