refactor: extract code related to logging into login function

src/user.ts

@@ -2,6 +2,7 @@ import * as vscode from 'vscode';
 import * as path from 'path';
 import * as os from 'os';
 import * as fs from 'fs';
+import DevstarAPIHandler from './devstar-api';
 const {
   generateKeyPairSync,
   createHash
@@ -22,7 +23,7 @@ export default class User {
     this.userToken = this.context.globalState.get(this.userTokenKey);
 
     // 提取devstar domain的主域名，用于本地ssh key的命名
-    let devstarDomainFromConfig: string|undefined;
+    let devstarDomainFromConfig: string | undefined;
     let devstarDomainURL: string;
     devstarDomainFromConfig = vscode.workspace.getConfiguration('devstar').get('devstarDomain')
     // 如果没有配置devstar domain，则默认domain为https://devstar.cn
@@ -31,6 +32,43 @@ export default class User {
     this.devstarHostname = parsedUrl.hostname.replace(/\./g, '_'); //提取hostname，并用下划线替换.
   }
 
+  public async login(token: string, username: string): Promise<string> {
+    const devstarAPIHandler = new DevstarAPIHandler()
+
+    try {
+      const res = await devstarAPIHandler.verifyToken(token, username)
+      if (res !== 'ok') {
+        throw new Error('Token verification failed')
+      }
+
+      // token与用户名验证通过
+      // 插件登录：存储token与用户名
+      this.setUserTokenToLocal(token)
+      this.setUsernameToLocal(username)
+
+      // 检查本地是否有用户所属公钥，没有则创建
+      if (!this.existUserPublicKey()) {
+        await this.createUserSSHKey()
+
+        // 上传公钥
+        const uploadResult = await devstarAPIHandler.uploadUserPublicKey(this)
+        if (uploadResult !== 'ok') {
+          throw new Error('Upload user public key failed')
+        }
+      }
+
+      return 'ok'
+    } catch (error) {
+      console.error(error)
+      return 'login failed'
+    }
+  }
+
+  public logout() {
+    this.setUserTokenToLocal("")
+    this.setUsernameToLocal("")
+  }
+
   public isLogged() {
     var existUsername = false;
     var existUserToken = false;