feat: getDefaultPublicKey and firstConnect with key

* getDefaultPublicKey make sure that you will get a public key, if it
doesn't exist, create one
* firstConnect with key instead of password

src/home.ts

@@ -1,6 +1,6 @@
 import * as vscode from 'vscode';
 import RemoteContainer from './remote-container';
-import {fetch} from './utils'
+import * as utils from './utils'
 
 export default class DSHome {
   private context: vscode.ExtensionContext;
@@ -23,7 +23,7 @@ export default class DSHome {
       }
     );
 
-    fetch(url).then(async (content) => {
+    utils.fetch(url).then(async (content) => {
       panel.webview.html = await this.getWebviewContent(content);
     })
 
@@ -31,7 +31,7 @@ export default class DSHome {
       async (message) => {
         switch (message.command) {
           case 'firstOpenRemoteFolder':
-            await this.remoteContainer.firstConnect(message.host, message.username, message.password, message.port)
+            await this.remoteContainer.firstConnect(message.host, message.username, message.port)
             .then((_res) => {
               if (_res == 'success') {
                 //  only success then open folder
@@ -64,6 +64,17 @@ export default class DSHome {
               panel.webview.postMessage({ command: 'setUserToken', data: {ok: false}})
               break;
             }
+          case 'getDefaultPublicKey':
+            var defaultPublicKey;
+            if (utils.existDefaultPublicKey()) {
+              defaultPublicKey = utils.getDefaultPublicKey();
+            } else {
+              // if default public key doesn't exist, create it
+              utils.createSSHKey();
+              defaultPublicKey = utils.getDefaultPublicKey();
+            }
+
+            panel.webview.postMessage({ command: 'getDefaultPublicKey', data: {defaultPublicKey: defaultPublicKey}})
         }
       },
       undefined,