Net Stack

网络协议栈模块作为电话子系统可裁剪部件，主要分为HTTP和socket模块；如图1：Http接口架构图；如图2：socket接口架构图；

/foundation/communication/netstack
├─figures                            # 架构图
├─frameworks                         # 接口实现
│  ├─js                              # JS API实现
│  │   ├─builtin                     # 小型系统JS API实现
│  │   │   ├── http_request          # http请求实现目录
│  │   │   └── test                  # 测试代码
│  │   └─napi                        # 标准系统JS API实现
│  │       ├─fetch                   # fetch API
│  │       ├─http                    # http API
│  │       ├─socket                  # socket API
│  │       ├─tls                     # tls socket API
│  │       └─websocket               # websocket API
│  └─native                          # native接口
│    └─tls_socket                    # tls socket native实现
├─interfaces                         # 接口定义
│  ├─innerkits                       # native接口
│  │  └─tls_socket                   # tls socket native接口
│  └─kits                            # JS接口
│     └─js                           # 本地.d.ts文件
├─test                               # 测试代码目录
└─utils                              # 公共功能
   ├─common_utils                    # 共通库目录
   ├─log                             # 日志实现目录
   └─napi_utils                      # 公用NAPI代码目录

import http from "@ohos.net.http"
let httpRequest = http.createHttp()
httpRequest.request("www.example.com", function (err, data) {
    console.log(JSON.stringify(err))
    console.log(JSON.stringify(data))
})

import socket from "@ohos.net.socket"
let tcp = socket.constructTCPSocketInstance()
tcp.on("message", function (data) {
  console.log(JSON.stringify(data))
})
tcp.bind({
  address: "127.0.0.1",
  family: 1,
  port: 0
})
tcp.connect({
  address: {
    address: "127.0.0.1",
    family: 1,
    port: 8888
  }
})
tcp.send({
  data: "Hello World"
})

let udp = socket.constructUDPSocketInstance()
udp.bind({
  address: "127.0.0.1",
  family: 1,
  port: 0
})
udp.send({
  address: {
    address: "127.0.0.1",
    family: 1,
    port: 9999
  },
  data: "Hello World"
})

let tls = socket.constructTLSSocketInstance();
let Protocol = socket.Protocol;
let options = {
            ALPNProtocols: ["spdy/1", "http/1.1"],
            address: {
                address: "xxxx",
                port: "xxxx",
                family: 1,
            },
            secureOptions: {
                key: "xxxx",
                cert: "xxxx",
                ca: ["xxxx"],
                passwd: "123456",
                protocols: [Protocol.TLSv12],
                useRemoteCipherPrefer: true,
                signatureAlgorithms: rsa_pss_rsae_sha256:ECDSA+SHA25,
                cipherSuite: AES256-SHA256,
            },
};
tls.connect(options).then(data => {
  console.info(data);
}).catch(err => {
  console.error(err);
});
tls.getProtocol((err, data) => {
  if (err) {
    console.log("getProtocol callback error = " + err);
  } else {
    console.log("getProtocol callback = " + data);
  }
});
let data = "Hello Word";
tls.send(data, (err, data) => {
  if (err) {
    console.log("send callback error = " + err);
  } else {
    console.log("send callback = " + data);
  }
});