Added frond-end and needed get calls.

endpoints/listgrouppermissions.js

@@ -0,0 +1,26 @@
+//Call for listing all groups with their permissions - needed for control panel
+//Groups without permissions also included
+//
+const handleListPerm = (req, res, db) => {
+
+    db.transaction ( trx => {
+        trx.select('groups.groupname', 'permissions.objname', 'permissions.type')
+        .from('groups')
+        .leftJoin('permissions', function () {
+            this.on('groups.groupname', 'ilike','permissions.owner')
+        })
+        .where('username', 'like', '')
+        .orderBy('groupname', 'asc')
+        .orderBy('objname', 'asc')
+        .then ( data => {
+            res.json(data);
+        })
+        .then(trx.commit)
+        .catch(trx.rollback)
+        .catch (err => res.status(400).json('Error accesing database.'))
+    })
+}
+
+module.exports = {
+    handleListPerm
+}

endpoints/listgroupusers.js

@@ -0,0 +1,20 @@
+//Call for listing all groups with their users - needed for control panel
+//
+const handleListGroup = (req, res, db) => {
+    db.transaction (trx => {
+        trx.select('*')
+        .from('groups')
+        .orderBy('groupname', 'asc')
+        .orderBy('username', 'asc')
+        .then( data => {
+            res.json(data);
+        })
+        .then(trx.commit)
+        .catch(trx.rollback)
+        .catch (err => res.status(400).json('Error accesing database.'))
+    })
+}
+
+module.exports = {
+    handleListGroup
+}

endpoints/listuserpermissions.js

@@ -0,0 +1,29 @@
+//Call for listing all users with their permissions - needed for control panel
+//Users without permissions also included
+//
+const handleListPerm = (req, res, db) => {
+   
+   db.transaction ( trx => {
+        trx.select('users.username', 'permissions.objname', 'permissions.type')
+        .from('groups')
+        .fullOuterJoin('permissions', function () {
+            this.on('groups.groupname', '=', 'permissions.owner')
+        })
+        .rightJoin('users', function () {
+            this.on('groups.username', 'ilike','users.username')
+            .orOn('permissions.owner', 'ilike', 'users.username')
+        })
+        .orderBy('username', 'asc')
+        .orderBy('objname', 'asc')
+        .then ( data => {
+            res.json(data);
+        })
+        .then(trx.commit)
+        .catch(trx.rollback)
+        .catch (err => res.status(400).json('Error accesing database.'))
+    }) 
+} 
+
+module.exports = {
+    handleListPerm
+}

permissions.js

@@ -27,6 +27,9 @@ const addpermission= require('./endpoints/addpermission');
 const clearpermissions= require('./endpoints/clearpermissions');
 const testuserperm= require('./endpoints/testuserperm');
 const querypermiss= require('./endpoints/querypermiss');
+const listgroupusers= require('./endpoints/listgroupusers');
+const listgrouppermissions= require('./endpoints/listgrouppermissions');
+const listuserpermissions= require('./endpoints/listuserpermissions');
 //Requiremenst for input data validation
 const { addUserValidationRules, addPermissionValidationRules, validate, } = require('./validators/validator')
 
@@ -35,6 +38,19 @@ app.get('/', (req, res) => {
      res.send("Work in progress...");
 })
 
+//Call for listing all groups with their users - needed for control panel
+app.get('/listgroupusers', (req, res) => {
+    listgroupusers.handleListGroup(req, res, db);
+});
+
+//Call for listing all permissions with their owners groups and users - needed for control panel
+app.get('/listgrouppermissions', (req, res) => {
+    listgrouppermissions.handleListPerm(req, res, db);
+});
+app.get('/listuserpermissions', (req, res) => {
+    listuserpermissions.handleListPerm(req, res, db);
+});
+
 //Call for adding a user to a group
 app.post('/addusertogroup', addUserValidationRules(), validate, (req, res) => {
     addusertogroup.handleAddUserToGroup(req, res, db)});
@@ -69,5 +85,3 @@ app.listen(3000, () => {
     console.log(`App is running on port 3000`);
 })
 
-//For testing purpose
-//module.exports = app; 

permissions_control_panel/.env

@@ -0,0 +1 @@
+PORT=8000

permissions_control_panel/.gitignore

@@ -0,0 +1,23 @@
+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+
+# testing
+/coverage
+
+# production
+/build
+
+# misc
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*

permissions_control_panel/README.md

@@ -0,0 +1,42 @@
+# Naida test
+***Permissions Control Panel
+
+Permissions API is front-end webpage for controlling User Permissions.
+
+*Getting Started 
+
+Instructions for running webpage on your local machine for develoment and testing purposes. 
+
+*Prerequisited 
+
+Pull project folder from GitLab to your local machine: https://gitlab.com/saburly/testovi/naida
+Front-end webpage files are in folder /permissions_control_panel.
+
+*Installing dependencies 
+
+Check that package.json has listed  "dependencies": {
+    "react": "^16.11.0",
+    "react-dom": "^16.11.0",
+    "react-scripts": "3.2.0",
+    "tachyons": "^4.11.1"
+  }
+In terminal navigate to folder /permissions_control_panel and run: 
+$npm install
+
+This should install all needed dependencies (node modules). 
+
+*Start project 
+
+As API is running on default localport 3000, for testing and development purposes, front-end webpage will be running on port 8000 as defined in env file. 
+
+To run both front end and back-end, open terminal, cd into root project folder and run script 
+$chmod +x startall.sh
+$sh startall.sh 
+
+*Built With
+
+ -React
+ -Tachyons
+
+
+

permissions_control_panel/package.json

@@ -0,0 +1,32 @@
+{
+  "name": "permissions_control_panel",
+  "version": "0.1.0",
+  "private": true,
+  "dependencies": {
+    "react": "^16.11.0",
+    "react-dom": "^16.11.0",
+    "react-scripts": "3.2.0",
+    "tachyons": "^4.11.1"
+  },
+  "scripts": {
+    "start": "react-scripts start",
+    "build": "react-scripts build",
+    "test": "react-scripts test",
+    "eject": "react-scripts eject"
+  },
+  "eslintConfig": {
+    "extends": "react-app"
+  },
+  "browserslist": {
+    "production": [
+      ">0.2%",
+      "not dead",
+      "not op_mini all"
+    ],
+    "development": [
+      "last 1 chrome version",
+      "last 1 firefox version",
+      "last 1 safari version"
+    ]
+  }
+}

permissions_control_panel/public/index.html

@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8" />
+    <link rel="icon" href="%PUBLIC_URL%/favicon.ico" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <meta name="theme-color" content="#000000" />
+    <meta
+      name="description"
+      content="Web site created using create-react-app"
+    />
+    <link rel="apple-touch-icon" href="logo192.png" />
+    <!--
+      manifest.json provides metadata used when your web app is installed on a
+      user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/
+    -->
+    <link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
+    <!--
+      Notice the use of %PUBLIC_URL% in the tags above.
+      It will be replaced with the URL of the `public` folder during the build.
+      Only files inside the `public` folder can be referenced from the HTML.
+
+      Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
+      work correctly both with client-side routing and a non-root public URL.
+      Learn how to configure a non-root public URL by running `npm run build`.
+    -->
+    <title>Permissions Control Panel</title>
+  </head>
+  <body>
+    <noscript>You need to enable JavaScript to run this app.</noscript>
+    <div id="root"></div>
+    <!--
+      This HTML file is a template.
+      If you open it directly in the browser, you will see an empty page.
+
+      You can add webfonts, meta tags, or analytics to this file.
+      The build step will place the bundled scripts into the <body> tag.
+
+      To begin the development, run `npm start` or `yarn start`.
+      To create a production bundle, use `npm run build` or `yarn build`.
+    -->
+  </body>
+</html>

permissions_control_panel/public/manifest.json

@@ -0,0 +1,25 @@
+{
+  "short_name": "React App",
+  "name": "Create React App Sample",
+  "icons": [
+    {
+      "src": "favicon.ico",
+      "sizes": "64x64 32x32 24x24 16x16",
+      "type": "image/x-icon"
+    },
+    {
+      "src": "logo192.png",
+      "type": "image/png",
+      "sizes": "192x192"
+    },
+    {
+      "src": "logo512.png",
+      "type": "image/png",
+      "sizes": "512x512"
+    }
+  ],
+  "start_url": ".",
+  "display": "standalone",
+  "theme_color": "#000000",
+  "background_color": "#ffffff"
+}

permissions_control_panel/public/robots.txt

@@ -0,0 +1,2 @@
+# https://www.robotstxt.org/robotstxt.html
+User-agent: *

permissions_control_panel/src/App.css

@@ -0,0 +1,23 @@
+.App {
+  text-align: center;
+  background-color: #282c34;
+}
+
+.App-logo {
+  height: 40vmin;
+}
+
+.App-header {
+  background-color: #282c34;
+  min-height: 100vh;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  font-size: calc(10px + 2vmin);
+  color: white;
+}
+
+.App-link {
+  color: #09d3ac;
+}

permissions_control_panel/src/App.js

@@ -0,0 +1,162 @@
+import React, {Component} from 'react';
+import './App.css';
+//Required components 
+import AddUser from './components/adduser/AddUser';
+import AddPermission from './components/addpermission/AddPermission';
+import ClearGroup from './components/cleargroup/ClearGroup';
+import ClearPermission from './components/clearpermission/ClearPermission';
+import GroupList from './components/grouplist/GroupList';
+import PermissionList from './components/permissionlist/PermissionList';
+
+
+class App extends Component {
+  constructor () {
+    super();
+    this.state = {
+      changeCount: 0,
+      groupselected: '',
+      ownerselected: '',
+      ownertype: ''
+    };
+  }
+
+  //Function that changes key for rerendering of lists after adding-clearing
+  onChange = () => {
+    let tmp=this.state.changeCount;
+    tmp++;
+    this.setState( {
+      changeCount: tmp
+    });
+  }
+
+  //Function that adds user to group in database after button click
+  onAddUser = (event) => {
+    let user= prompt("Username: ");
+    let group=prompt("Group: ");
+    fetch ( 'http://localhost:3000/addusertogroup', {
+        method: 'post',
+        headers: {    'Content-type': 'application/json'},
+        body: JSON.stringify({
+            requser: user,
+            reqgroup: group
+        })
+    })
+    .then(response => response.json())
+    .then(user => {
+        if (user.id) {
+            alert("User added to group.");
+            this.onChange();
+        } else {
+            alert("Could not add user to group.");
+        }
+    })
+    .catch(err => console.log('Error:', err))
+  }
+
+  //Function that adds permission to group or user  in database after button click
+  onAddPermission = (event) => {
+    let ownertype= prompt("Permission Owner Type (user or group): ");
+    let owner=prompt("Permission owner: ");
+    let object = prompt("Object name: ");
+    let type = prompt("Permission type: ");
+    fetch ( 'http://localhost:3000/addpermission', {
+        method: 'post',
+        headers: {    'Content-type': 'application/json'},
+        body: JSON.stringify({
+            reqowner: owner,
+            reqownertype: ownertype,
+            reqobjname: object,
+            reqtype: type
+        })
+    })
+    .then(response => response.json())
+    .then(perm => {
+        if (perm.id) {
+            alert("Permision added.");
+            this.onChange();
+        } else {
+            alert("Could not add permission.");
+        }
+    })
+    .catch(err => console.log('Error:', err))
+  }
+
+  //Function that clears all users from group in database after button click
+  onClearGroup = (event) => {
+    let group=this.state.groupselected;
+    fetch ( 'http://localhost:3000/cleargroup', {
+        method: 'post',
+        headers: {    'Content-type': 'application/json'},
+        body: JSON.stringify({
+            reqgroup: group
+        })
+    })
+    .then(response => response.json())
+    .then(mess => {
+        if (mess.includes('cleared')) {
+            alert("Group cleared.");
+            this.onChange();
+            
+        } else {
+            alert("Could not clear group.");
+        }
+    })
+    .catch(err => console.log('Error:', err))
+  }
+
+  //Function that clears all permissions from owner in database after button click
+  onClearPerm = (event) => {
+    let ownertype=this.state.ownertype;
+    let owner=this.state.ownerselected;
+    fetch ( 'http://localhost:3000/clearpermissions', {
+        method: 'post',
+        headers: {    'Content-type': 'application/json'},
+        body: JSON.stringify({
+            reqowner: owner,
+            reqownertype: ownertype
+        })
+    })
+    .then(response => response.json())
+    .then(mess => {
+        if (mess.includes('cleared')) {
+            alert("Permissions cleared.");
+            this.onChange();
+        } else {
+            alert("Could not clear permissions.");
+        }
+    })
+    .catch(err => console.log('Error:', err))
+  }
+
+  //Function that selects group for clear after it is selected in list
+  selectGroup = (group) => {
+    this.setState( {groupselected: group});
+  }
+
+  //Function that selects permission owner for clear after it is selected in list
+  selectPerm = (owner, type) => {
+    this.setState( {
+        ownerselected: owner,
+        ownertype: type
+      });
+  }
+  
+  render() { 
+    return (
+      <div className="App">
+          <div className="di flex justify-around">
+            <GroupList key={this.state.changeCount} selectGroup={this.selectGroup}/>
+            <PermissionList key={this.state.changeCount+1} selectPerm={this.selectPerm}/>
+          </div>
+          <div>
+            <AddUser onAddUser={this.onAddUser}/>
+            <AddPermission onAddPermission={this.onAddPermission}/>
+            <ClearGroup onClearGroup={this.onClearGroup}/>
+            <ClearPermission onClearPerm={this.onClearPerm}/>
+          </div>
+      </div>
+    );
+  }
+}
+
+export default App;

permissions_control_panel/src/App.test.js

@@ -0,0 +1,9 @@
+import React from 'react';
+import ReactDOM from 'react-dom';
+import App from './App';
+
+it('renders without crashing', () => {
+  const div = document.createElement('div');
+  ReactDOM.render(<App />, div);
+  ReactDOM.unmountComponentAtNode(div);
+});

permissions_control_panel/src/components/addpermission/AddPermission.js

@@ -0,0 +1,12 @@
+import React from 'react';
+
+const AddPermission= ({onAddPermission}) => {
+        return (
+            <div className='ph3 dib'>
+                <a className="f6 link dim ph3 pv2 mb2 dib white bg-light-purple" href="#0"
+                onClick={()=> onAddPermission()}>Add Permission</a>
+            </div>
+         );
+}
+
+export default AddPermission;

permissions_control_panel/src/components/adduser/AddUser.js

@@ -0,0 +1,12 @@
+import React from 'react';
+
+const AddUser = ({onAddUser}) => {
+        return (
+            <div className='ph3 dib'>
+                <a className="f6 link dim ph3 pv2 mb2 dib white bg-purple" href="#0"
+                onClick={()=> onAddUser()}>Add User To Group</a>
+            </div>
+         );
+}
+
+export default AddUser;

permissions_control_panel/src/components/cleargroup/ClearGroup.js

@@ -0,0 +1,12 @@
+import React from 'react';
+
+const ClearGroup = ({onClearGroup}) => {
+        return (
+            <div className='ph3 dib'>
+                <a className="f6 link dim ph3 pv2 mb2 dib white bg-hot-pink" href="#0"
+                onClick={()=>onClearGroup()}>Clear Group</a>
+            </div>
+         );
+}
+
+export default ClearGroup;

permissions_control_panel/src/components/clearpermission/ClearPermission.js

@@ -0,0 +1,12 @@
+import React from 'react';
+
+const ClearPermission =({onClearPerm}) => {
+        return (
+            <div className='ph3 dib'>
+                <a className="f6 link dim ph3 pv2 mb2 dib white bg-dark-pink" href="#0"
+                onClick={()=>onClearPerm()}>Clear Permissions</a>
+            </div>
+         );
+}
+
+export default ClearPermission;

permissions_control_panel/src/components/grouplist/GroupList.css

@@ -0,0 +1,17 @@
+s {
+    text-decoration: none;
+}
+.whbg {
+    background: white;
+}
+.wht {
+    color: white;
+}
+.scroll {
+    max-height:150px;
+    overflow:auto;
+}
+.not-und {
+    text-decoration: none;
+}
+

permissions_control_panel/src/components/grouplist/GroupList.js

@@ -0,0 +1,76 @@
+import React, {Component} from 'react';
+import './GroupList.css';
+
+class GroupList extends Component {
+    constructor (props) {
+        super (props);
+        this.state = {
+            groups: []
+        }
+    }
+    componentDidMount () {
+        fetch('http://localhost:3000/listgroupusers')
+        .then (response => response.json())
+        .then( response => { 
+            //Changing received data to suitable form
+            let group=[
+                {
+                groupname: response[0].groupname,
+                users: [response[0].username]
+                }
+            ];
+            let j=0;
+            for (let i=1; i<response.length; i++) {
+                if(response[i].groupname.toLowerCase()===response[i-1].groupname.toLowerCase()) {
+                    group[j].users.push(response[i].username);
+                }
+                else {
+                    group.push({
+                        groupname: response[i].groupname,
+                        users: [response[i].username]
+                    });
+                    j++;
+                }
+            }
+            this.setState( {groups: group});
+        })
+        .catch (err => console.log(err));
+    }
+    //Function that changes received data to list items 
+    makeItems = (group, selectGroup) => {
+       return (
+            <ul className="list ph3 ph5-ns pv4 whbg scroll">
+                 {group.map( (item, index) => 
+                    <li key={index} className="db mr2">
+                        <a href="#0" key={index*10} 
+                        onClick={()=> selectGroup(item.groupname)}
+                        className="f6 f5-ns b db pa2 link dim mid-gray not-und">
+                            <s key={index*100}>{item.groupname}</s>
+                            {item.users.map( (user, index2) => {
+                                if(user.length!==0) {
+                                    return <s key={index2}>, {user}</s>
+                                }
+                                else {
+                                    return '';
+                                }
+                             }
+                            )}
+                        </a>
+                    </li>
+                 )}
+            </ul>
+            );
+    }
+    
+    render () {
+        const {selectGroup} = this.props;
+        return (
+            <div className="dib">
+                <h3 className="wht">List of Groups with all Users</h3>
+                {this.makeItems(this.state.groups, selectGroup)}
+            </div>
+         );
+    }
+}
+
+export default GroupList;

permissions_control_panel/src/components/permissionlist/PermissionList.css

@@ -0,0 +1,13 @@
+s {
+    text-decoration: none;
+}
+.whbg {
+    background: white;
+}
+.wht {
+    color: white;
+}
+.scroll {
+    max-height:150px;
+    overflow:auto;
+}

permissions_control_panel/src/components/permissionlist/PermissionList.js

@@ -0,0 +1,172 @@
+import React, {Component} from 'react';
+import './PermissionList.css';
+
+class PermissionList extends Component {
+    constructor (props) {
+        super (props);
+        this.state = {
+            groupswperm: [],
+            userswperm: []
+        }
+    }
+    componentDidMount () {
+        //Getting data for groups and all associated permissions 
+        fetch('http://localhost:3000/listgrouppermissions')
+        .then (response => response.json())
+        .then( response => { 
+            let groups=[
+                {
+                groupname: response[0].groupname,
+                permissions: [
+                            { object: response[0].objname,
+                              type: response[0].type  
+                             }
+                           ]
+                }
+            ];
+            let j=0;
+            for (let i=1; i<response.length; i++) {
+                if(response[i].groupname.toLowerCase()===response[i-1].groupname.toLowerCase()) {
+                    if(response[i].objname !==null) {
+                        groups[j].permissions.push( 
+                            {   object: response[i].objname,
+                                type: response[i].type  
+                            }
+                        );
+                    }
+                }
+                else {
+                    if (response[i].objname !==null) {
+                        groups.push({
+                            groupname: response[i].groupname,
+                            permissions: [
+                                { object: response[i].objname,
+                                  type: response[i].type  
+                                 }
+                               ]
+                        });
+                        j++;
+                    }
+                    else if (response[i].objname ===null) {
+                        groups.push({
+                            groupname: response[i].groupname,
+                            permissions: []
+                        });
+                        j++;
+                    }
+                   
+                }
+
+            }
+            this.setState( {groupswperm: groups});
+        })
+        .catch (err => console.log(err));
+        //Getting data for users and all associated permissions 
+        fetch('http://localhost:3000/listuserpermissions')
+        .then (response => response.json())
+        .then( response => { 
+            let users=[
+                {
+                username: response[0].username,
+                permissions: [
+                            { object: response[0].objname,
+                              type: response[0].type  
+                             }
+                           ]
+                }
+            ];
+            let j=0;
+            for (let i=1; i<response.length; i++) {
+                if(response[i].username===response[i-1].username) {
+                    if(response[i].objname !==null) {
+                        users[j].permissions.push( 
+                            {   object: response[i].objname,
+                                type: response[i].type  
+                            }
+                        );
+                    }
+                }
+                else {
+                    if (response[i].objname !==null) {
+                        users.push({
+                            username: response[i].username,
+                            permissions: [
+                                { object: response[i].objname,
+                                  type: response[i].type  
+                                 }
+                               ]
+                        });
+                        j++;
+                    }
+                    else if (response[i].objname ===null) {
+                        users.push({
+                            username: response[i].username,
+                            permissions: []
+                        });
+                        j++;
+                    }
+                   
+                }
+
+            }
+            this.setState( {userswperm: users});
+           
+        })
+        .catch (err => console.log(err));
+    }
+    //Function that changes received data to list items 
+    makeItems = (groups, users, selectPerm) => {
+        return (
+             <ul className="list ph3 ph5-ns pv4 whbg scroll">
+                  {groups.map( (item, index) => 
+                    <li key={index} className="db mr2">
+                        <a href="#0" key={index*10} 
+                        onClick ={()=> selectPerm(item.groupname, 'group')}
+                        className="f6 f5-ns b db pa2 link dim mid-gray not-und">
+                          <s key={index*100}>{item.groupname} (G)</s>
+                          {item.permissions.map( (perm, index2) => {
+                              if(perm.length!==0 && perm.object!==null) {
+                                return <s key={index2}>, {perm.object} - {perm.type}</s>
+                              }
+                              else {
+                                return '';
+                              }
+                            }
+                          )}
+                         </a>
+                     </li>
+                  )}
+                    {users.map( (item, index) => 
+                     <li key={index*2} className="db mr2">
+                      <a href="#0" key={index*20} 
+                        onClick ={()=> selectPerm(item.username, 'user')}
+                        className="f6 f5-ns b db pa2 link dim mid-gray not-und">
+                          <s key={index*200}>{item.username} (U)</s>
+                          {item.permissions.map( (perm, index2) => {
+                              if(perm.length!==0 && perm.object!==null) {
+                                return <s key={index2*2}>, {perm.object} - {perm.type}</s>
+                              }
+                              else {
+                                return '';
+                                }
+                            }
+                          )}
+                         </a>
+                     </li>
+                    )}
+             </ul>
+        );
+
+     }
+    render () {
+        const {selectPerm} = this.props;
+        return (
+            <div className="dib">
+                <h3 className="wht">List of all Permissions</h3>
+                {this.makeItems(this.state.groupswperm, this.state.userswperm, selectPerm)}
+        </div>
+         );
+    }
+}
+
+export default PermissionList;

permissions_control_panel/src/index.css

@@ -0,0 +1,15 @@
+body {
+  margin: 0;
+  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen",
+    "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue",
+    sans-serif;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+
+  background-color: #282c34;
+}
+
+code {
+  font-family: source-code-pro, Menlo, Monaco, Consolas, "Courier New",
+    monospace;
+}

permissions_control_panel/src/index.js

@@ -0,0 +1,13 @@
+import React from 'react';
+import ReactDOM from 'react-dom';
+import './index.css';
+import App from './App';
+import * as serviceWorker from './serviceWorker';
+import 'tachyons';
+
+ReactDOM.render(<App />, document.getElementById('root'));
+
+// If you want your app to work offline and load faster, you can change
+// unregister() to register() below. Note this comes with some pitfalls.
+// Learn more about service workers: https://bit.ly/CRA-PWA
+serviceWorker.unregister();

permissions_control_panel/src/serviceWorker.js

@@ -0,0 +1,135 @@
+// This optional code is used to register a service worker.
+// register() is not called by default.
+
+// This lets the app load faster on subsequent visits in production, and gives
+// it offline capabilities. However, it also means that developers (and users)
+// will only see deployed updates on subsequent visits to a page, after all the
+// existing tabs open on the page have been closed, since previously cached
+// resources are updated in the background.
+
+// To learn more about the benefits of this model and instructions on how to
+// opt-in, read https://bit.ly/CRA-PWA
+
+const isLocalhost = Boolean(
+  window.location.hostname === 'localhost' ||
+    // [::1] is the IPv6 localhost address.
+    window.location.hostname === '[::1]' ||
+    // 127.0.0.1/8 is considered localhost for IPv4.
+    window.location.hostname.match(
+      /^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/
+    )
+);
+
+export function register(config) {
+  if (process.env.NODE_ENV === 'production' && 'serviceWorker' in navigator) {
+    // The URL constructor is available in all browsers that support SW.
+    const publicUrl = new URL(process.env.PUBLIC_URL, window.location.href);
+    if (publicUrl.origin !== window.location.origin) {
+      // Our service worker won't work if PUBLIC_URL is on a different origin
+      // from what our page is served on. This might happen if a CDN is used to
+      // serve assets; see https://github.com/facebook/create-react-app/issues/2374
+      return;
+    }
+
+    window.addEventListener('load', () => {
+      const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`;
+
+      if (isLocalhost) {
+        // This is running on localhost. Let's check if a service worker still exists or not.
+        checkValidServiceWorker(swUrl, config);
+
+        // Add some additional logging to localhost, pointing developers to the
+        // service worker/PWA documentation.
+        navigator.serviceWorker.ready.then(() => {
+          console.log(
+            'This web app is being served cache-first by a service ' +
+              'worker. To learn more, visit https://bit.ly/CRA-PWA'
+          );
+        });
+      } else {
+        // Is not localhost. Just register service worker
+        registerValidSW(swUrl, config);
+      }
+    });
+  }
+}
+
+function registerValidSW(swUrl, config) {
+  navigator.serviceWorker
+    .register(swUrl)
+    .then(registration => {
+      registration.onupdatefound = () => {
+        const installingWorker = registration.installing;
+        if (installingWorker == null) {
+          return;
+        }
+        installingWorker.onstatechange = () => {
+          if (installingWorker.state === 'installed') {
+            if (navigator.serviceWorker.controller) {
+              // At this point, the updated precached content has been fetched,
+              // but the previous service worker will still serve the older
+              // content until all client tabs are closed.
+              console.log(
+                'New content is available and will be used when all ' +
+                  'tabs for this page are closed. See https://bit.ly/CRA-PWA.'
+              );
+
+              // Execute callback
+              if (config && config.onUpdate) {
+                config.onUpdate(registration);
+              }
+            } else {
+              // At this point, everything has been precached.
+              // It's the perfect time to display a
+              // "Content is cached for offline use." message.
+              console.log('Content is cached for offline use.');
+
+              // Execute callback
+              if (config && config.onSuccess) {
+                config.onSuccess(registration);
+              }
+            }
+          }
+        };
+      };
+    })
+    .catch(error => {
+      console.error('Error during service worker registration:', error);
+    });
+}
+
+function checkValidServiceWorker(swUrl, config) {
+  // Check if the service worker can be found. If it can't reload the page.
+  fetch(swUrl)
+    .then(response => {
+      // Ensure service worker exists, and that we really are getting a JS file.
+      const contentType = response.headers.get('content-type');
+      if (
+        response.status === 404 ||
+        (contentType != null && contentType.indexOf('javascript') === -1)
+      ) {
+        // No service worker found. Probably a different app. Reload the page.
+        navigator.serviceWorker.ready.then(registration => {
+          registration.unregister().then(() => {
+            window.location.reload();
+          });
+        });
+      } else {
+        // Service worker found. Proceed as normal.
+        registerValidSW(swUrl, config);
+      }
+    })
+    .catch(() => {
+      console.log(
+        'No internet connection found. App is running in offline mode.'
+      );
+    });
+}
+
+export function unregister() {
+  if ('serviceWorker' in navigator) {
+    navigator.serviceWorker.ready.then(registration => {
+      registration.unregister();
+    });
+  }
+}

startall.sh

@@ -0,0 +1,4 @@
+#!/bin/sh
+npm start &
+cd permissions_control_panel
+npm start &