feat(login): redirect mechanism - in page link to open popup

src/auth/AuthManager.ts

@@ -23,14 +23,18 @@ export class AuthManager {
         : '/SASLogon/logout.do?'
   }
 
+  /**
+   * Opens Pop up window to SAS Login screen.
+   * And checks if user has finished login process.
+   */
   public async redirectedLogIn() {
-    const loginPopup = openWebPage(this.loginPreventRedirectUrl, 'SASLogon', {
+    const loginPopup = await openWebPage(
-      width: 500,
+      this.loginPreventRedirectUrl,
-      height: 600
+      'SASLogon',
-    })
+      { width: 500, height: 600 }
+    )
 
     if (!loginPopup) {
-      alert('Unable to open popup for login. Please try with other browser.')
       return { isLoggedIn: false }
     }
 

src/auth/openWebPage.ts

@@ -1,13 +1,15 @@
+import { openLoginPrompt } from '../utils/loginPrompt'
+
 interface windowFeatures {
   width: number
   height: number
 }
 
-export function openWebPage(
+export async function openWebPage(
   url: string,
   windowName: string = '',
   { width, height }: windowFeatures
-): Window | null {
+): Promise<Window | null> {
   const left = screen.width / 2 - width / 2
   const top = screen.height / 2 - height / 2
 
@@ -17,5 +19,16 @@ export function openWebPage(
     `toolbar=0,location=0,menubar=0,width=${width},height=${height},left=${left},top=${top}`
   )
 
+  if (!loginPopup) {
+    const doLogin = await openLoginPrompt()
+    return doLogin
+      ? window.open(
+          url,
+          windowName,
+          `toolbar=0,location=0,menubar=0,width=${width},height=${height},left=${left},top=${top}`
+        )
+      : null
+  }
+
   return loginPopup
 }

src/utils/loginPrompt/index.ts

@@ -0,0 +1,166 @@
+export const openLoginPrompt = (): Promise<boolean> => {
+  return new Promise(async (resolve) => {
+    // const cssContent = await readFile(path.join(__dirname, 'style.css'))
+    const style = document.createElement('style')
+    style.id = 'stylesBySASjsAdapter'
+    style.innerText = cssContent
+
+    const loginPromptBG = document.createElement('div')
+    loginPromptBG.id = 'loginPromptBG'
+    loginPromptBG.classList.add('popUpBG')
+
+    const loginPrompt = document.createElement('div')
+    loginPrompt.id = 'loginPrompt'
+    loginPrompt.classList.add('popUp')
+
+    const title = document.createElement('h1')
+    title.innerText = 'Session Expired!'
+    loginPrompt.appendChild(title)
+
+    const descHolder = document.createElement('div')
+    const desc = document.createElement('span')
+    desc.innerText = 'You need to relogin, click OK to login.'
+    descHolder.appendChild(desc)
+    loginPrompt.appendChild(descHolder)
+
+    const buttonCancel = document.createElement('button')
+    buttonCancel.classList.add('cancel')
+    buttonCancel.innerText = 'Cancel'
+    buttonCancel.onclick = () => {
+      closeLoginPrompt()
+      resolve(false)
+    }
+    loginPrompt.appendChild(buttonCancel)
+
+    const buttonOk = document.createElement('button')
+    buttonOk.classList.add('confirm')
+    buttonOk.innerText = 'Ok'
+    buttonOk.onclick = () => {
+      closeLoginPrompt()
+      resolve(true)
+    }
+    loginPrompt.appendChild(buttonOk)
+
+    document.body.style.overflow = 'hidden'
+
+    document.body.appendChild(style)
+    document.body.appendChild(loginPromptBG)
+    document.body.appendChild(loginPrompt)
+  })
+}
+const closeLoginPrompt = () => {
+  let elem = document.querySelector('#stylesBySASjsAdapter')
+  elem?.parentNode?.removeChild(elem)
+
+  elem = document.querySelector('#loginPrompt')
+  elem?.parentNode?.removeChild(elem)
+
+  elem = document.querySelector('#loginPromptBG')
+  elem?.parentNode?.removeChild(elem)
+
+  document.body.style.overflow = 'auto'
+}
+
+const cssContent = `
+.popUp {
+  box-sizing: border-box;
+  -webkit-box-sizing: border-box;
+  -moz-box-sizing: border-box;
+  display: block;
+  position: fixed;
+  top: 40%;
+  left: 50%;
+  padding: 0;
+  font-size: 14px;
+  font-family: 'PT Sans', sans-serif;
+  color: #fff;
+  border-style: none;
+  z-index: 999;
+  overflow: hidden;
+  background: rgba(0, 0, 0, 0.2);
+  margin: 0;
+  width: 100%;
+  max-width: 300px;
+  height: auto;
+  max-height: 300px;
+  transform: translate(-50%, -50%);
+}
+.popUp > h1 {
+  box-sizing: border-box;
+  -webkit-box-sizing: border-box;
+  -moz-box-sizing: border-box;
+  padding: 5px;
+  min-height: 40px;
+  font-size: 1.2em;
+  font-weight: bold;
+  text-align: center;
+  color: #fff;
+  background-color: transparent;
+  border-style: none;
+  border-width: 5px;
+  border-color: black;
+}
+.popUp > div {
+  width: 100%;
+  height: calc(100% -108px);
+  margin: 0;
+  display: block;
+  box-sizing: border-box;
+  -webkit-box-sizing: border-box;
+  -moz-box-sizing: border-box;
+  padding: 5%;
+  text-align: center;
+  border-width: 1px;
+  border-color: #ccc;
+  border-style: none none solid none;
+  overflow: auto;
+}
+.popUp > div > span {
+  display: table-cell;
+  box-sizing: border-box;
+  -webkit-box-sizing: border-box;
+  -moz-box-sizing: border-box;
+  margin: 0;
+  padding: 0;
+  width: 300px;
+  height: 108px;
+  vertical-align: middle;
+  border-style: none;
+}
+.popUp .cancel {
+  float: left;
+}
+.popUp .confirm {
+  float: right;
+}
+.popUp > button {
+  box-sizing: border-box;
+  -webkit-box-sizing: border-box;
+  -moz-box-sizing: border-box;
+  margin: 0;
+  padding: 10px;
+  width: 50%;
+  border: 1px none #ccc;
+  color: #fff;
+  font-family: inherit;
+  cursor: pointer;
+  height: 50px;
+  background: rgba(1, 1, 1, 0.2);
+}
+.popUp > button:hover {
+  background: rgba(0, 0, 0, 0.2);
+}
+.popUpBG {
+  display: block;
+  position: fixed;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+  margin: 0;
+  padding: 0;
+  opacity: 0.95;
+  z-index: 50;
+  background-image: radial-gradient(#0378cd, #012036);
+}
+`

src/utils/loginPrompt/style.css

@@ -0,0 +1,101 @@
+.popUp {
+  box-sizing: border-box;
+  -webkit-box-sizing: border-box;
+  -moz-box-sizing: border-box;
+  display: block;
+  position: fixed;
+  top: 40%;
+  left: 50%;
+  padding: 0;
+  font-size: 14px;
+  font-family: 'PT Sans', sans-serif;
+  color: #fff;
+  border-style: none;
+  z-index: 999;
+  overflow: hidden;
+  background: rgba(0, 0, 0, 0.2);
+  margin: 0;
+  width: 100%;
+  max-width: 300px;
+  height: auto;
+  max-height: 300px;
+  transform: translate(-50%, -50%);
+}
+.popUp > h1 {
+  box-sizing: border-box;
+  -webkit-box-sizing: border-box;
+  -moz-box-sizing: border-box;
+  padding: 5px;
+  min-height: 40px;
+  font-size: 1.2em;
+  font-weight: bold;
+  text-align: center;
+  color: #fff;
+  background-color: transparent;
+  border-style: none;
+  border-width: 5px;
+  border-color: black;
+}
+.popUp > div {
+  width: 100%;
+  height: calc(100% -108px);
+  margin: 0;
+  display: block;
+  box-sizing: border-box;
+  -webkit-box-sizing: border-box;
+  -moz-box-sizing: border-box;
+  padding: 5%;
+  text-align: center;
+  border-width: 1px;
+  border-color: #ccc;
+  border-style: none none solid none;
+  overflow: auto;
+}
+.popUp > div > span {
+  display: table-cell;
+  box-sizing: border-box;
+  -webkit-box-sizing: border-box;
+  -moz-box-sizing: border-box;
+  margin: 0;
+  padding: 0;
+  width: 300px;
+  height: 108px;
+  vertical-align: middle;
+  border-style: none;
+}
+.popUp .cancel {
+  float: left;
+}
+.popUp .confirm {
+  float: right;
+}
+.popUp > button {
+  box-sizing: border-box;
+  -webkit-box-sizing: border-box;
+  -moz-box-sizing: border-box;
+  margin: 0;
+  padding: 10px;
+  width: 50%;
+  border: 1px none #ccc;
+  color: #fff;
+  font-family: inherit;
+  cursor: pointer;
+  height: 50px;
+  background: rgba(1, 1, 1, 0.2);
+}
+.popUp > button:hover {
+  background: rgba(0, 0, 0, 0.2);
+}
+.popUpBG {
+  display: block;
+  position: fixed;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+  margin: 0;
+  padding: 0;
+  opacity: 0.95;
+  z-index: 50;
+  background-image: radial-gradient(#0378cd, #012036);
+}