added authentication

.gitignore

@@ -3,3 +3,6 @@ __pycache__/
 *.swo
 devices.json
 config.py
+secret_key
+cred
+juice.db

README.md

@@ -3,11 +3,11 @@ A hub for controlling IOT devices.
 
 ## Requirements  
 Python 3.6+  
-Python packages: `flask gunicorn requests`  
+Python packages: `flask gunicorn requests passlib argon2_cffi`  
 
 ## Install  
 1. Get on the floor  
 2. Walk the dinosaur  
 
 ## Usage  
-`gunicorn -b localhost:5300 -e SCRIPT_NAME=/juice juice:app`  
+`gunicorn -b localhost:5300 juice:app`  

auth.py

@@ -0,0 +1,226 @@
+#!/usr/bin/env python3
+"""
+Contains authentication methods for the app.
+"""
+import os
+import functools
+
+from fido2.client import ClientData
+from fido2.server import Fido2Server, RelyingParty
+from fido2.ctap2 import AttestationObject, AuthenticatorData, \
+	AttestedCredentialData
+from fido2 import cbor
+from flask import Blueprint, session, render_template, request, abort, \
+	redirect, url_for, g
+from passlib.hash import argon2
+
+import config
+import db
+
+auth_views = Blueprint("auth_views", __name__)
+
+rp = RelyingParty('steelbea.me', 'Juice')
+server = Fido2Server(rp)
+
+
+def auth_required(func):
+	"""
+	Wrapper for views which should be protected by authentication.
+	"""
+	@functools.wraps(func)
+	def wrapper(*args, **kwargs):
+		username = session.get('username')
+		token = session.get('token')
+		if not username or not token:
+			return redirect(url_for('auth_views.login'))
+	
+		data = db.get_user(username)
+		if not data:
+			session.pop('username')
+			return redirect(url_for('auth_views.login'))
+		token_hash = data[2]
+		if not token_hash:
+			return redirect(url_for('auth_views.login'))
+
+		if argon2.verify(token, token_hash):
+			return func(*args, **kwargs)
+		else:
+			session.pop('token')
+			return redirect(url_for('auth_views.login'))
+	return wrapper
+
+
+@auth_views.route('/api/register/begin', methods=['POST'])
+def register_begin():
+	if not config.registration_open:
+		return "Registration is closed."
+
+	username = session.get('username')
+	if not username:
+		return 'invalid'
+
+	data = db.get_user(username)
+	if not data:
+		session.pop('username')
+		return 'invalid'
+	user_id = data[0]
+
+	exist_cred = db.get_credentials(user_id)
+	exist_cred = [AttestedCredentialData(cd[2]) for cd in exist_cred]
+
+	registration_data, state = server.register_begin({
+		'id': str(user_id).encode('utf8'),
+		'name': username,
+		'displayName': username,
+	}, exist_cred, user_verification='discouraged')
+
+	session['state'] = state
+	return cbor.encode(registration_data)
+
+
+@auth_views.route('/api/register/complete', methods=['POST'])
+def register_complete():
+	if not config.registration_open:
+		return "Registration is closed."
+
+	username = session.get('username')
+	if not username:
+		return 'invalid'
+
+	data = db.get_user(username)
+	if not data:
+		session.pop('username')
+		return 'invalid'
+	user_id = data[0]
+
+	data = cbor.decode(request.get_data())
+	client_data = ClientData(data['clientDataJSON'])
+	att_obj = AttestationObject(data['attestationObject'])
+
+	auth_data = server.register_complete(
+		session.pop('state'),
+		client_data,
+		att_obj
+	)
+
+	db.set_credential(user_id, auth_data.credential_data)
+	return cbor.encode({'status': 'OK'})
+
+
+@auth_views.route('/api/authenticate/begin', methods=['POST'])
+def authenticate_begin():
+	username = session.get('username')
+	if not username:
+		return 'invalid'
+
+	data = db.get_user(session['username'])
+	if not data:
+		session.pop('username')
+		return 'invalid'
+	user_id = data[0]
+
+	credentials = db.get_credentials(user_id)
+	credentials = [AttestedCredentialData(cd[2]) for cd in credentials]
+
+	auth_data, state = server.authenticate_begin(credentials)
+	session['state'] = state
+	return cbor.encode(auth_data)
+
+
+@auth_views.route('/api/authenticate/complete', methods=['POST'])
+def authenticate_complete():
+	username = session.get('username')
+	if not username:
+		return 'invalid'
+
+	data = db.get_user(session['username'])
+	if not data:
+		session.pop('username')
+		return 'invalid'
+	user_id = data[0]
+
+	credentials = db.get_credentials(user_id)
+	credentials = [AttestedCredentialData(cd[2]) for cd in credentials]
+
+	data = cbor.decode(request.get_data())
+	credential_id = data['credentialId']
+	client_data = ClientData(data['clientDataJSON'])
+	auth_data = AuthenticatorData(data['authenticatorData'])
+	signature = data['signature']
+
+	server.authenticate_complete(
+		session.pop('state'),
+		credentials,
+		credential_id,
+		client_data,
+		auth_data,
+		signature
+	)
+
+	token = os.urandom(32)
+	token_hash = argon2.hash(token)
+	db.set_user_token(username, token_hash)
+	session['token'] = token
+
+	return cbor.encode({'status': 'OK'})
+
+
+@auth_views.route('/register', methods=['GET', 'POST'])
+def register():
+	"""
+	Registration page.
+	"""
+	if not config.registration_open:
+		return "Registration is closed."
+
+	if request.method == 'GET':
+		params = {
+			'title': 'Register',
+			'heading': 'Register an account',
+			'form_url': url_for('auth_views.register'),
+		}
+		return render_template('auth.html', **params)
+
+	username = request.form.get('username')
+	
+	if len(username) > 64:
+		return "username too long"
+	elif len(username) < 3:
+		return "username too short"
+
+	db.set_user(username) # TODO: handle username error
+	session['username'] = username
+
+	params = {
+		'title': 'Register',
+		'heading': 'Register your authenticator',
+		'api_begin': url_for('auth_views.register_begin'),
+		'api_complete': url_for('auth_views.register_complete'),
+	}
+	return render_template('auth_fido.html', **params)
+
+
+@auth_views.route('/login', methods=['GET', 'POST'])
+def login():
+	"""
+	Login page.
+	"""
+	if request.method == 'GET':
+		params = {
+			'title': 'Login',
+			'heading': 'Login',
+			'form_url': url_for('auth_views.login'),
+		}
+		return render_template('auth.html', **params)
+
+	
+	username = request.form.get('username')
+	session['username'] = username
+
+	params = {
+		'title': 'Login',
+		'heading': 'Login with your authenticator',
+		'api_begin': url_for('auth_views.authenticate_begin'),
+		'api_complete': url_for('auth_views.authenticate_complete'),
+	}
+	return render_template('auth_fido.html', **params)

config.py.template

@@ -3,5 +3,7 @@
 Configuration settings for the Juice IOT hub server.
 `url_prefix` is the root path you wish app to reside at
 eg. https://example.com/juice.
+`registration_open` whether or not new accounts may be registered.
 """
 url_prefix = '/juice'
+registration_open = True

db.py

@@ -0,0 +1,105 @@
+#!/usr/bin/env python3
+"""
+A module for interacting with Juice's database.
+"""
+import sqlite3
+import threading
+
+
+DB_LOCK = threading.Lock()
+
+
+def init_db():
+	"""
+	Checks to see if the database is initialized yet or not. If not,
+	the appropriate tables are created.
+	"""
+	con = sqlite3.connect('juice.db')
+	cur = con.cursor()
+	try:
+		cur.execute("SELECT * FROM user LIMIT 1").fetchone()
+		cur.execute("SELECT * FROM credential LIMIT 1").fetchone()
+	except sqlite3.OperationalError:
+		cur.execute("CREATE TABLE user("
+			"id INTEGER PRIMARY KEY AUTOINCREMENT, "
+			"name TEXT UNIQUE, "
+			"token_hash TEXT"
+			")"
+		)
+		cur.execute("CREATE TABLE credential("
+			"id INTEGER PRIMARY KEY AUTOINCREMENT, "
+			"user_id INTEGER REFERENCES user(id) ON UPDATE CASCADE, "
+			"credential BLOB"
+			")"
+		)
+		con.commit()
+	con.close()
+init_db()
+
+
+def db_execute(*args, **kwargs):
+	"""
+	Opens a connection to the app's database and executes the SQL
+	statements passed to this function.
+	"""
+	with sqlite3.connect('juice.db') as con:
+		DB_LOCK.acquire()
+		cur = con.cursor()
+		res = cur.execute(*args, **kwargs)
+		DB_LOCK.release()
+		return res
+
+
+def set_user(username):
+	"""
+	Adds a new user.
+	"""
+	db_execute(
+		"INSERT INTO user(name) VALUES (?)",
+		(username,)
+	)
+	return True
+
+
+def set_user_token(username, token_hash):
+	"""
+	Sets a user's token hash.
+	"""
+	db_execute(
+		"UPDATE user SET token_hash = ? WHERE name = ?",
+		(token_hash, username)
+	)
+	return True
+
+
+def get_user(username):
+	"""
+	Returns a user entry.
+	"""
+	data = db_execute(
+		"SELECT * FROM user WHERE name = ?",
+		(username,)
+	).fetchone()
+	return data
+
+
+def set_credential(user_id, credential):
+	"""
+	Adds a credential to the database.
+	"""
+	db_execute(
+		"INSERT INTO credential(user_id, credential) VALUES (?, ?)",
+		(user_id, credential)
+	)
+	return True
+
+
+def get_credentials(user_id):
+	"""
+	Returns all credentials registered to a user.
+	"""
+	data = db_execute(
+		"SELECT * FROM credential WHERE user_id = ?",
+		(user_id,)
+	).fetchall()
+	return data

juice.py

@@ -12,7 +12,8 @@ from flask import Flask, render_template, request, abort, jsonify
 from flask import Blueprint
 
 import config
-
+import auth
+from auth import auth_required
 
 class RelayDevice:
 	"""
@@ -134,6 +135,7 @@ def save_network(filepath="devices.json"):
 app_views = Blueprint('app_views', __name__)
 
 @app_views.route('/')
+@auth_required
 def index():
 	"""
 	The index page.
@@ -142,6 +144,7 @@ def index():
 
 
 @app_views.route('/toggle')
+@auth_required
 def toggle():
 	"""
 	Toggles the state of a RelayDevice.
@@ -161,6 +164,7 @@ def toggle():
 	return res
 
 @app_views.route('/edit')
+@auth_required
 def edit():
 	"""
 	Edits the text of a particular field.
@@ -212,8 +216,15 @@ def make_error(code, message):
 
 app = Flask(__name__)
 app.register_blueprint(app_views, url_prefix=config.url_prefix)
-app.secret_key = os.urandom(32)
+app.register_blueprint(auth.auth_views, url_prefix=config.url_prefix)
-app.config['APPLICATION_ROOT'] = config.url_prefix
+if os.path.isfile('secret_key'):
+	with open('secret_key', 'rb') as file:
+		app.secret_key = file.read()
+else:
+	secret_key = os.urandom(32)
+	app.secret_key = secret_key
+	with open('secret_key', 'wb') as file:
+		file.write(secret_key)
 network = init_network()
 
 

static/cbor.js

@@ -0,0 +1,406 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2014-2016 Patrick Gansterer <paroga@paroga.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+(function(global, undefined) { "use strict";
+var POW_2_24 = 5.960464477539063e-8,
+    POW_2_32 = 4294967296,
+    POW_2_53 = 9007199254740992;
+
+function encode(value) {
+  var data = new ArrayBuffer(256);
+  var dataView = new DataView(data);
+  var lastLength;
+  var offset = 0;
+
+  function prepareWrite(length) {
+    var newByteLength = data.byteLength;
+    var requiredLength = offset + length;
+    while (newByteLength < requiredLength)
+      newByteLength <<= 1;
+    if (newByteLength !== data.byteLength) {
+      var oldDataView = dataView;
+      data = new ArrayBuffer(newByteLength);
+      dataView = new DataView(data);
+      var uint32count = (offset + 3) >> 2;
+      for (var i = 0; i < uint32count; ++i)
+        dataView.setUint32(i << 2, oldDataView.getUint32(i << 2));
+    }
+
+    lastLength = length;
+    return dataView;
+  }
+  function commitWrite() {
+    offset += lastLength;
+  }
+  function writeFloat64(value) {
+    commitWrite(prepareWrite(8).setFloat64(offset, value));
+  }
+  function writeUint8(value) {
+    commitWrite(prepareWrite(1).setUint8(offset, value));
+  }
+  function writeUint8Array(value) {
+    var dataView = prepareWrite(value.length);
+    for (var i = 0; i < value.length; ++i)
+      dataView.setUint8(offset + i, value[i]);
+    commitWrite();
+  }
+  function writeUint16(value) {
+    commitWrite(prepareWrite(2).setUint16(offset, value));
+  }
+  function writeUint32(value) {
+    commitWrite(prepareWrite(4).setUint32(offset, value));
+  }
+  function writeUint64(value) {
+    var low = value % POW_2_32;
+    var high = (value - low) / POW_2_32;
+    var dataView = prepareWrite(8);
+    dataView.setUint32(offset, high);
+    dataView.setUint32(offset + 4, low);
+    commitWrite();
+  }
+  function writeTypeAndLength(type, length) {
+    if (length < 24) {
+      writeUint8(type << 5 | length);
+    } else if (length < 0x100) {
+      writeUint8(type << 5 | 24);
+      writeUint8(length);
+    } else if (length < 0x10000) {
+      writeUint8(type << 5 | 25);
+      writeUint16(length);
+    } else if (length < 0x100000000) {
+      writeUint8(type << 5 | 26);
+      writeUint32(length);
+    } else {
+      writeUint8(type << 5 | 27);
+      writeUint64(length);
+    }
+  }
+
+  function encodeItem(value) {
+    var i;
+
+    if (value === false)
+      return writeUint8(0xf4);
+    if (value === true)
+      return writeUint8(0xf5);
+    if (value === null)
+      return writeUint8(0xf6);
+    if (value === undefined)
+      return writeUint8(0xf7);
+
+    switch (typeof value) {
+      case "number":
+        if (Math.floor(value) === value) {
+          if (0 <= value && value <= POW_2_53)
+            return writeTypeAndLength(0, value);
+          if (-POW_2_53 <= value && value < 0)
+            return writeTypeAndLength(1, -(value + 1));
+        }
+        writeUint8(0xfb);
+        return writeFloat64(value);
+
+      case "string":
+        var utf8data = [];
+        for (i = 0; i < value.length; ++i) {
+          var charCode = value.charCodeAt(i);
+          if (charCode < 0x80) {
+            utf8data.push(charCode);
+          } else if (charCode < 0x800) {
+            utf8data.push(0xc0 | charCode >> 6);
+            utf8data.push(0x80 | charCode & 0x3f);
+          } else if (charCode < 0xd800) {
+            utf8data.push(0xe0 | charCode >> 12);
+            utf8data.push(0x80 | (charCode >> 6)  & 0x3f);
+            utf8data.push(0x80 | charCode & 0x3f);
+          } else {
+            charCode = (charCode & 0x3ff) << 10;
+            charCode |= value.charCodeAt(++i) & 0x3ff;
+            charCode += 0x10000;
+
+            utf8data.push(0xf0 | charCode >> 18);
+            utf8data.push(0x80 | (charCode >> 12)  & 0x3f);
+            utf8data.push(0x80 | (charCode >> 6)  & 0x3f);
+            utf8data.push(0x80 | charCode & 0x3f);
+          }
+        }
+
+        writeTypeAndLength(3, utf8data.length);
+        return writeUint8Array(utf8data);
+
+      default:
+        var length;
+        if (Array.isArray(value)) {
+          length = value.length;
+          writeTypeAndLength(4, length);
+          for (i = 0; i < length; ++i)
+            encodeItem(value[i]);
+        } else if (value instanceof Uint8Array) {
+          writeTypeAndLength(2, value.length);
+          writeUint8Array(value);
+        } else {
+          var keys = Object.keys(value);
+          length = keys.length;
+          writeTypeAndLength(5, length);
+          for (i = 0; i < length; ++i) {
+            var key = keys[i];
+            encodeItem(key);
+            encodeItem(value[key]);
+          }
+        }
+    }
+  }
+
+  encodeItem(value);
+
+  if ("slice" in data)
+    return data.slice(0, offset);
+
+  var ret = new ArrayBuffer(offset);
+  var retView = new DataView(ret);
+  for (var i = 0; i < offset; ++i)
+    retView.setUint8(i, dataView.getUint8(i));
+  return ret;
+}
+
+function decode(data, tagger, simpleValue) {
+  var dataView = new DataView(data);
+  var offset = 0;
+
+  if (typeof tagger !== "function")
+    tagger = function(value) { return value; };
+  if (typeof simpleValue !== "function")
+    simpleValue = function() { return undefined; };
+
+  function commitRead(length, value) {
+    offset += length;
+    return value;
+  }
+  function readArrayBuffer(length) {
+    return commitRead(length, new Uint8Array(data, offset, length));
+  }
+  function readFloat16() {
+    var tempArrayBuffer = new ArrayBuffer(4);
+    var tempDataView = new DataView(tempArrayBuffer);
+    var value = readUint16();
+
+    var sign = value & 0x8000;
+    var exponent = value & 0x7c00;
+    var fraction = value & 0x03ff;
+
+    if (exponent === 0x7c00)
+      exponent = 0xff << 10;
+    else if (exponent !== 0)
+      exponent += (127 - 15) << 10;
+    else if (fraction !== 0)
+      return (sign ? -1 : 1) * fraction * POW_2_24;
+
+    tempDataView.setUint32(0, sign << 16 | exponent << 13 | fraction << 13);
+    return tempDataView.getFloat32(0);
+  }
+  function readFloat32() {
+    return commitRead(4, dataView.getFloat32(offset));
+  }
+  function readFloat64() {
+    return commitRead(8, dataView.getFloat64(offset));
+  }
+  function readUint8() {
+    return commitRead(1, dataView.getUint8(offset));
+  }
+  function readUint16() {
+    return commitRead(2, dataView.getUint16(offset));
+  }
+  function readUint32() {
+    return commitRead(4, dataView.getUint32(offset));
+  }
+  function readUint64() {
+    return readUint32() * POW_2_32 + readUint32();
+  }
+  function readBreak() {
+    if (dataView.getUint8(offset) !== 0xff)
+      return false;
+    offset += 1;
+    return true;
+  }
+  function readLength(additionalInformation) {
+    if (additionalInformation < 24)
+      return additionalInformation;
+    if (additionalInformation === 24)
+      return readUint8();
+    if (additionalInformation === 25)
+      return readUint16();
+    if (additionalInformation === 26)
+      return readUint32();
+    if (additionalInformation === 27)
+      return readUint64();
+    if (additionalInformation === 31)
+      return -1;
+    throw "Invalid length encoding";
+  }
+  function readIndefiniteStringLength(majorType) {
+    var initialByte = readUint8();
+    if (initialByte === 0xff)
+      return -1;
+    var length = readLength(initialByte & 0x1f);
+    if (length < 0 || (initialByte >> 5) !== majorType)
+      throw "Invalid indefinite length element";
+    return length;
+  }
+
+  function appendUtf16Data(utf16data, length) {
+    for (var i = 0; i < length; ++i) {
+      var value = readUint8();
+      if (value & 0x80) {
+        if (value < 0xe0) {
+          value = (value & 0x1f) <<  6
+                | (readUint8() & 0x3f);
+          length -= 1;
+        } else if (value < 0xf0) {
+          value = (value & 0x0f) << 12
+                | (readUint8() & 0x3f) << 6
+                | (readUint8() & 0x3f);
+          length -= 2;
+        } else {
+          value = (value & 0x0f) << 18
+                | (readUint8() & 0x3f) << 12
+                | (readUint8() & 0x3f) << 6
+                | (readUint8() & 0x3f);
+          length -= 3;
+        }
+      }
+
+      if (value < 0x10000) {
+        utf16data.push(value);
+      } else {
+        value -= 0x10000;
+        utf16data.push(0xd800 | (value >> 10));
+        utf16data.push(0xdc00 | (value & 0x3ff));
+      }
+    }
+  }
+
+  function decodeItem() {
+    var initialByte = readUint8();
+    var majorType = initialByte >> 5;
+    var additionalInformation = initialByte & 0x1f;
+    var i;
+    var length;
+
+    if (majorType === 7) {
+      switch (additionalInformation) {
+        case 25:
+          return readFloat16();
+        case 26:
+          return readFloat32();
+        case 27:
+          return readFloat64();
+      }
+    }
+
+    length = readLength(additionalInformation);
+    if (length < 0 && (majorType < 2 || 6 < majorType))
+      throw "Invalid length";
+
+    switch (majorType) {
+      case 0:
+        return length;
+      case 1:
+        return -1 - length;
+      case 2:
+        if (length < 0) {
+          var elements = [];
+          var fullArrayLength = 0;
+          while ((length = readIndefiniteStringLength(majorType)) >= 0) {
+            fullArrayLength += length;
+            elements.push(readArrayBuffer(length));
+          }
+          var fullArray = new Uint8Array(fullArrayLength);
+          var fullArrayOffset = 0;
+          for (i = 0; i < elements.length; ++i) {
+            fullArray.set(elements[i], fullArrayOffset);
+            fullArrayOffset += elements[i].length;
+          }
+          return fullArray;
+        }
+        return readArrayBuffer(length);
+      case 3:
+        var utf16data = [];
+        if (length < 0) {
+          while ((length = readIndefiniteStringLength(majorType)) >= 0)
+            appendUtf16Data(utf16data, length);
+        } else
+          appendUtf16Data(utf16data, length);
+        return String.fromCharCode.apply(null, utf16data);
+      case 4:
+        var retArray;
+        if (length < 0) {
+          retArray = [];
+          while (!readBreak())
+            retArray.push(decodeItem());
+        } else {
+          retArray = new Array(length);
+          for (i = 0; i < length; ++i)
+            retArray[i] = decodeItem();
+        }
+        return retArray;
+      case 5:
+        var retObject = {};
+        for (i = 0; i < length || length < 0 && !readBreak(); ++i) {
+          var key = decodeItem();
+          retObject[key] = decodeItem();
+        }
+        return retObject;
+      case 6:
+        return tagger(decodeItem(), length);
+      case 7:
+        switch (length) {
+          case 20:
+            return false;
+          case 21:
+            return true;
+          case 22:
+            return null;
+          case 23:
+            return undefined;
+          default:
+            return simpleValue(length);
+        }
+    }
+  }
+
+  var ret = decodeItem();
+  if (offset !== data.byteLength)
+    throw "Remaining bytes";
+  return ret;
+}
+
+var obj = { encode: encode, decode: decode };
+
+if (typeof define === "function" && define.amd)
+  define("cbor/cbor", obj);
+else if (typeof module !== "undefined" && module.exports)
+  module.exports = obj;
+else if (!global.CBOR)
+  global.CBOR = obj;
+
+})(this);

static/juice.css

@@ -1,11 +1,14 @@
 body {
 	padding: 5%;
-	display: flex;
-	justify-content: center;
 	font-family: Helvetica,sans-serif;
 	background-color: lightblue;
 }
 
+#container {
+	display: flex;
+	justify-content: center;
+}
+
 .device {
 	border: 2px solid darkgray;
 	border-radius: 0.5em;

static/juice.js

@@ -74,3 +74,59 @@ function save_field(field) {
 		field.children[1].replaceWith(edit);
 	});
 }
+
+function register() {
+	fetch(url_prefix + '/api/register/begin', {
+		method: 'POST',
+	}).then(function(response) {
+		if(!response.ok) { throw new Error('Error getting registration data!'); }
+		return response.arrayBuffer();
+	}).then(CBOR.decode).then(function(options) {
+		return navigator.credentials.create(options);
+	}).then(function(attestation) {
+		return fetch(url_prefix + '/api/register/complete', {
+			method: 'POST',
+			headers: {'Content-Type': 'application/cbor'},
+			body: CBOR.encode({
+				"attestationObject": new Uint8Array(attestation.response.attestationObject),
+				"clientDataJSON": new Uint8Array(attestation.response.clientDataJSON),
+			})
+		});
+	}).then(function(response) {
+		let stat = response.ok ? 'successful' : 'unsuccessful';
+		alert('Registration ' + stat + ' More details in server log...');
+	}, function(reason) {
+		alert(reason);
+	}).then(function() {
+		window.location = url_prefix;
+	});
+}
+
+function login() {
+	fetch(url_prefix + '/api/authenticate/begin', {
+		method: 'POST',
+	}).then(function(response) {
+		if(!response.ok) { throw new Error('No credential available to authenticate!'); }
+		return response.arrayBuffer();
+	}).then(CBOR.decode).then(function(options) {
+		return navigator.credentials.get(options);
+	}).then(function(assertion) {
+		return fetch(url_prefix + '/api/authenticate/complete', {
+			method: 'POST',
+			headers: {'Content-Type': 'application/cbor'},
+			body: CBOR.encode({
+				"credentialId": new Uint8Array(assertion.rawId),
+				"authenticatorData": new Uint8Array(assertion.response.authenticatorData),
+				"clientDataJSON": new Uint8Array(assertion.response.clientDataJSON),
+				"signature": new Uint8Array(assertion.response.signature)
+			})
+		})
+	}).then(function(response) {
+		let stat = response.ok ? 'successful' : 'unsuccessful';
+		alert('Authentication ' + stat + ' More details in server log...');
+	}, function(reason) {
+		alert(reason);
+	}).then(function() {
+		window.location = url_prefix;
+	});
+}

templates/auth.html

@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<html>
+<head>
+	<title>Juice - {{ title }}</title>
+	<link rel="stylesheet" type="text/css" href="/static/juice.css">
+	<script type="text/javascript" src="/static/cbor.js"></script>
+</head>
+<body>
+	<h1>{{ heading }}</h1>
+	<form method="post" action="{{ form_url }}">
+		Username: <input name="username" maxlength="64" required><br>
+		<input type="submit" value="Submit">
+	</form>
+</body>
+</html>
+

templates/auth_fido.html

@@ -0,0 +1,53 @@
+<!DOCTYPE html>
+<html>
+<head>
+	<title>Juice - {{ title }}</title>
+	<link rel="stylesheet" type="text/css" href="/static/juice.css">
+	<script type="text/javascript" src="/static/cbor.js"></script>
+</head>
+<body>
+	<h1>{{ heading }}</h1>
+	<p>Touch your authenticactor device now...
+	<script>
+		fetch('{{ api_begin }}', {
+			method: 'POST',
+		}).then(function(response) {
+			if(!response.ok) { throw new Error('Error getting registration data!'); }
+			return response.arrayBuffer();
+		}).then(CBOR.decode).then(function(options) {
+			return navigator.credentials.{% if title == 'Register' %}create{% else %}get{% endif %}(options);
+		{% if title == 'Register' %}
+		}).then(function(attestation) {
+			return fetch('{{ api_complete }}', {
+				method: 'POST',
+				headers: {'Content-Type': 'application/cbor'},
+				body: CBOR.encode({
+					"attestationObject": new Uint8Array(attestation.response.attestationObject),
+					"clientDataJSON": new Uint8Array(attestation.response.clientDataJSON),
+				})
+			});
+		{% else %}
+		}).then(function(assertion) {
+			return fetch('{{ api_complete }}', {
+				method: 'POST',
+				headers: {'Content-Type': 'application/cbor'},
+				body: CBOR.encode({
+					"credentialId": new Uint8Array(assertion.rawId),
+					"authenticatorData": new Uint8Array(assertion.response.authenticatorData),
+					"clientDataJSON": new Uint8Array(assertion.response.clientDataJSON),
+					"signature": new Uint8Array(assertion.response.signature)
+				})
+			});
+		{% endif %}
+		}).then(function(response) {
+			let stat = response.ok ? 'successful' : 'unsuccessful';
+			alert('Registration ' + stat + ' More details in server log...');
+		}, function(reason) {
+			alert(reason);
+		}).then(function() {
+			window.location = '{{ url_for("app_views.index") }}';
+		});
+	</script>
+</body>
+</html>
+

templates/index.html

@@ -6,6 +6,7 @@
 	<script type="text/javascript" src="/static/juice.js"></script>
 </head>
 <body>
+	<div id="container">
 		{% for dev_type, devices in network.items() %}
 		{% for device in devices %}
 		<div class="device {{ dev_type }}" id="{{ device.id }}">
@@ -32,5 +33,6 @@
 		</div>
 	{% endfor %}
 	{% endfor %}
+	</div>
 </body>
 </html>