Session

main.go

@@ -67,10 +67,12 @@ func cssUpdateHandler(w http.ResponseWriter, r *http.Request) {// {{{
 func sessionCreate(w http.ResponseWriter, r *http.Request) {// {{{
 	session, err := NewSession()
 	if err != nil {
-		w.Write()
+		responseError(w, err)
 	}
-
-
+	responseData(w, map[string]interface{}{
+		"OK": true,
+		"Session": session,
+	})
 }// }}}
 func websocketHandler(w http.ResponseWriter, r *http.Request) {// {{{
 	var err error
@@ -102,6 +104,9 @@ func staticHandler(w http.ResponseWriter, r *http.Request) {// {{{
 	// For now to get VERSION into files to fix caching.
 	tmpl, err := newTemplate(r.URL.Path)
 	if err != nil {
+		if os.IsNotExist(err) {
+			w.WriteHeader(404)
+		}
 		w.Write([]byte(err.Error()))
 		return
 	}

request_response.go

@@ -3,10 +3,26 @@ package main
 import (
 	// Standard
 	"encoding/json"
+	"net/http"
 )
 
 type Request struct {
 	ID string
 }
 
-func (req *Request) 
+func responseError(w http.ResponseWriter, err error) {
+	res := map[string]interface{}{
+		"ok": false,
+		"error": err.Error(),
+	}
+	resJSON, _ := json.Marshal(res)
+
+	w.Header().Add("Content-Type", "application/json")
+	w.Write(resJSON)
+}
+
+func responseData(w http.ResponseWriter, data interface{}) {
+	resJSON, _ := json.Marshal(data)
+	w.Header().Add("Content-Type", "application/json")
+	w.Write(resJSON)
+}

static/css/login.css

@@ -3,10 +3,8 @@
   justify-items: center;
   height: 100%;
 }
-#login div {
+#login input {
   max-width: 300px;
-}
-#login div input {
   margin-bottom: 32px;
   width: 100%;
   border: 0px;
@@ -15,6 +13,15 @@
   color: #fff;
   background-color: #494949;
 }
-#login div input:focus {
+#login input:focus {
   outline: none;
 }
+#login button {
+  max-width: 300px;
+  border: 1px solid #666;
+  background: #494949;
+  color: #fff;
+  padding: 16px 32px;
+  font-size: 0.8em;
+  align-self: center;
+}

static/index.html

@@ -17,6 +17,8 @@
 				"@preact/signals-core": "/js/{{ .VERSION }}/lib/signals/signals-core.mjs",
 				"preact/signals":       "/js/{{ .VERSION }}/lib/signals/signals.mjs",
 				"htm":                  "/js/{{ .VERSION }}/lib/htm/htm.mjs"
+
+				"session":              "/js/{{ .VERSION }}/session.mjs"
 			}
 		}
 		</script>

static/js/app.mjs

@@ -3,6 +3,7 @@ import 'preact/devtools'
 //import { signal } from 'preact/signals'
 import { h, Component, render, createRef } from 'preact'
 import htm from 'htm'
+import Session from 'session'
 const html = htm.bind(h)
 
 class App extends Component {
@@ -14,7 +15,7 @@ class App extends Component {
 		this.wsConnect()
 		this.wsLoop()
 
-		this.sessionID = window.localStorage.getItem("sessionID")
+
 	}//}}}
 	render() {//{{{
 		if(this.sessionID === null) {
@@ -63,6 +64,51 @@ class App extends Component {
 		}
 	}//}}}
 
+	responseError({comm, app}) {//{{{
+		if(comm !== undefined) {
+			comm.text().then(body=>alert(body))
+			return
+		}
+
+		if(app !== undefined && app.hasOwnProperty('error')) {
+			alert(app.error)
+			return
+		}
+
+		if(app !== undefined) {
+			alert(JSON.stringify(app))
+		}
+	}//}}}
+	async request(url, params) {//{{{
+		return new Promise((resolve, reject)=>{
+			let headers = {
+				'Content-Type': 'application/json',
+			}
+
+			if(this.sessionID !== null)
+				headers['X-SESSION-ID'] = this.sessionID
+
+			fetch(url, {
+				method: 'POST',
+				headers,
+				body: JSON.stringify(params),
+			})
+			.then(response=>{
+				// A HTTP communication level error occured
+				if(!response.ok || response.status !=  200)
+					return reject({comm: response})
+				return response.json()
+			})
+			.then(json=>{
+				// An application level error occured
+				if(!json.OK)
+					return reject({app: json})
+				return resolve(json)
+			})
+			.catch(err=>reject({comm: err}))
+		})
+	}//}}}
+
 	broadcastHandler(msg) {//{{{
 		switch(msg.Op) {
 			case 'css_reload':
@@ -70,20 +116,44 @@ class App extends Component {
 				break;
 		}
 	}//}}}
+	login(username, password) {//{{{
+		this.request('/session/create', {})
+		.then(res=>{
+			this.setSessionID(res.Session.UUID)
+		})
+		.catch(this.responseError)
+	}//}}}
+
+	getSessionID() {
+		return window.localStorage.getItem("sessionID")
+	}
+	setSessionID(uuid) {
+		console.log('wut')
+		this.sessionID = uuid
+		window.localStorage.setItem('sessionID', uuid)
+	}
 }
 
 class Login extends Component {
-	render() {
+	render() {//{{{
 		return html`
 		<div id="login">
 			<h1>Notes</h1>
-			<div>
-				<input id="username" type="text"     placeholder="Username" />
-				<input id="password" type="password" placeholder="Password" />
-			</div>
+			<input id="username" type="text"     placeholder="Username" onkeydown=${evt=>{ if(evt.code == 'Enter') this.login() }} />
+			<input id="password" type="password" placeholder="Password" onkeydown=${evt=>{ if(evt.code == 'Enter') this.login() }} />
+			<button onclick=${()=>this.login()}>Login</button>
 		</div>
 		`
-	}
+	}//}}}
+	componentDidMount() {//{{{
+		document.getElementById('username').focus()
+	}//}}}
+
+	login() {//{{{
+		let username = document.getElementById('username').value
+		let password = document.getElementById('password').value
+		window._app.current.login(username, password)
+	}//}}}
 }
 
 // Init{{{

static/less/login.less

@@ -5,10 +5,8 @@
 	justify-items: center;
 	height: 100%;
 
-	div {
-		max-width: 300px;
-
 	input {
+		max-width: 300px;
 		margin-bottom: 32px;
 		width: 100%;
 		border: 0px;
@@ -22,5 +20,14 @@
 			outline: none;
 		}
 	}
+
+	button {
+		max-width: 300px;
+		border: 1px solid #666;
+		background: @background;
+		color: #fff;
+		padding: 16px 32px;
+		font-size: 0.8em;
+		align-self: center;
 	}
 }

static/session.mjs

@@ -0,0 +1,12 @@
+export class Session {
+	static createFromStorage() {
+		let session = new Session()
+		session.UUID
+	}
+
+	constructor() {
+		this.UUID = ''
+		this.authenticated = false
+		this.UserID = 0
+	}
+}