From 4ddf47f3daef144ce1951f965cef48d3bf2b607c Mon Sep 17 00:00:00 2001
From: Nolan Lawson <nolan@nolanlawson.com>
Date: Thu, 26 Sep 2019 05:28:52 -0700
Subject: [PATCH] feat: implement basic login mode (#1543)

fixes #1542
---
 src/routes/_actions/addInstance.js            |  38 +++-
 src/routes/_components/InfoAside.html         |  40 ++++
 src/routes/_pages/settings/instances/add.html | 171 ++++++++++++------
 src/routes/_pages/settings/wellness.html      |  35 +---
 tests/spec/002-login-spec.js                  |  16 +-
 tests/utils.js                                |   3 +
 6 files changed, 209 insertions(+), 94 deletions(-)
 create mode 100644 src/routes/_components/InfoAside.html

diff --git a/src/routes/_actions/addInstance.js b/src/routes/_actions/addInstance.js
index 8e4344d3..1db0069b 100644
--- a/src/routes/_actions/addInstance.js
+++ b/src/routes/_actions/addInstance.js
@@ -8,14 +8,17 @@ import { updateCustomEmojiForInstance } from './emoji'
 import { database } from '../_database/database'
 import { DOMAIN_BLOCKS } from '../_static/blocks'
 
-const REDIRECT_URI = process.browser && `${location.origin}/settings/instances/add`
-
 function createKnownError (message) {
   const err = new Error(message)
   err.knownError = true
   return err
 }
 
+function getRedirectUri () {
+  const { copyPasteMode } = store.get()
+  return copyPasteMode ? 'urn:ietf:wg:oauth:2.0:oob' : `${location.origin}/settings/instances/add`
+}
+
 async function redirectToOauth () {
   let { instanceNameInSearch, loggedInInstances } = store.get()
   instanceNameInSearch = instanceNameInSearch.replace(/^https?:\/\//, '').replace(/\/+$/, '').toLowerCase()
@@ -26,7 +29,8 @@ async function redirectToOauth () {
   if (DOMAIN_BLOCKS.some(domain => new RegExp(`(?:\\.|^)${domain}$`, 'i').test(instanceHostname))) {
     throw createKnownError('This service is blocked')
   }
-  const registrationPromise = registerApplication(instanceNameInSearch, REDIRECT_URI)
+  const redirectUri = getRedirectUri()
+  const registrationPromise = registerApplication(instanceNameInSearch, redirectUri)
   const instanceInfo = await getInstanceInfo(instanceNameInSearch)
   await database.setInstanceInfo(instanceNameInSearch, instanceInfo) // cache for later
   const instanceData = await registrationPromise
@@ -38,11 +42,16 @@ async function redirectToOauth () {
   const oauthUrl = generateAuthLink(
     instanceNameInSearch,
     instanceData.client_id,
-    REDIRECT_URI
+    redirectUri
   )
   // setTimeout to allow the browser to *actually* save the localStorage data (fixes Safari bug apparently)
+  const { copyPasteMode } = store.get()
   setTimeout(() => {
-    document.location.href = oauthUrl
+    if (copyPasteMode) {
+      window.open(oauthUrl, '_blank', 'noopener')
+    } else {
+      document.location.href = oauthUrl
+    }
   }, 200)
 }
 
@@ -72,12 +81,13 @@ export async function logInToInstance () {
 
 async function registerNewInstance (code) {
   const { currentRegisteredInstanceName, currentRegisteredInstance } = store.get()
+  const redirectUri = getRedirectUri()
   const instanceData = await getAccessTokenFromAuthCode(
     currentRegisteredInstanceName,
     currentRegisteredInstance.client_id,
     currentRegisteredInstance.client_secret,
     code,
-    REDIRECT_URI
+    redirectUri
   )
   const { loggedInInstances, loggedInInstancesInOrder, instanceThemes } = store.get()
   instanceThemes[currentRegisteredInstanceName] = DEFAULT_THEME
@@ -92,7 +102,8 @@ async function registerNewInstance (code) {
     loggedInInstances: loggedInInstances,
     currentInstance: currentRegisteredInstanceName,
     loggedInInstancesInOrder: loggedInInstancesInOrder,
-    instanceThemes: instanceThemes
+    instanceThemes: instanceThemes,
+    copyPasteMode: false
   })
   store.save()
   const { enableGrayscale } = store.get()
@@ -113,3 +124,16 @@ export async function handleOauthCode (code) {
     store.set({ logInToInstanceLoading: false })
   }
 }
+
+export async function handleCopyPasteOauthCode (code) {
+  const { currentRegisteredInstanceName, currentRegisteredInstance } = store.get()
+  if (!currentRegisteredInstanceName || !currentRegisteredInstance) {
+    store.set({
+      logInToInstanceError: 'You must log in to an instance first.',
+      logInToInstanceErrorForText: '',
+      instanceNameInSearch: ''
+    })
+  } else {
+    await handleOauthCode(code)
+  }
+}
diff --git a/src/routes/_components/InfoAside.html b/src/routes/_components/InfoAside.html
new file mode 100644
index 00000000..fae778a9
--- /dev/null
+++ b/src/routes/_components/InfoAside.html
@@ -0,0 +1,40 @@
+<aside class="info-aside {className}">
+  <SvgIcon href="#fa-info-circle" className="aside-icon" />
+  <span>
+    <slot></slot>
+  </span>
+</aside>
+<style>
+  .info-aside {
+    font-size: 1.2em;
+    color: var(--deemphasized-text-color);
+    display: flex;
+    align-items: center;
+  }
+  :global(.info-aside a) {
+    text-decoration: underline;
+    color: var(--deemphasized-text-color);
+  }
+  :global(.info-aside span) {
+    flex: 1;
+  }
+  :global(.aside-icon) {
+    fill: var(--deemphasized-text-color);
+    width: 18px;
+    height: 18px;
+    margin: 0 10px 0 5px;
+    min-width: 18px;
+  }
+</style>
+<script>
+  import SvgIcon from './SvgIcon.html'
+
+  export default {
+    data: () => ({
+      className: ''
+    }),
+    components: {
+      SvgIcon
+    }
+  }
+</script>
diff --git a/src/routes/_pages/settings/instances/add.html b/src/routes/_pages/settings/instances/add.html
index 07324044..0f2fa9ae 100644
--- a/src/routes/_pages/settings/instances/add.html
+++ b/src/routes/_pages/settings/instances/add.html
@@ -1,65 +1,83 @@
 <SettingsLayout page='settings/instances/add' label="Add instance">
   <h1 id="add-an-instance-h1">Add instance</h1>
 
-  <form class="add-new-instance" on:submit='onSubmit(event)' aria-labelledby="add-an-instance-h1">
+  <div class="add-new-instance">
+    <form on:submit='onSubmitInstance(event)' aria-labelledby="add-an-instance-h1">
 
-    {#if !hasIndexedDB || !hasLocalStorage}
-      <div class="form-error form-error-user-error" role="alert">
-        It seems Pinafore cannot store data locally. Is your browser in private mode
-        or blocking cookies? Pinafore stores all data locally, and requires LocalStorage and
-        IndexedDB to work correctly.
-      </div>
+      {#if !hasIndexedDB || !hasLocalStorage}
+        <div class="form-error form-error-user-error" role="alert">
+          It seems Pinafore cannot store data locally. Is your browser in private mode
+          or blocking cookies? Pinafore stores all data locally, and requires LocalStorage and
+          IndexedDB to work correctly.
+        </div>
+      {/if}
+
+      {#if $logInToInstanceError && $logInToInstanceErrorForText === $instanceNameInSearch}
+        <div class="form-error form-error-user-error" role="alert">
+          Error: {$logInToInstanceError}
+        </div>
+      {/if}
+
+      <noscript>
+        <div class="form-error" role="alert">
+          You must enable JavaScript to log in.
+        </div>
+      </noscript>
+
+      <label for="instanceInput">Instance:</label>
+      <input type="text" inputmode="url" id="instanceInput"
+             bind:value='$instanceNameInSearch' placeholder="Enter instance name" required
+      >
+      <button class="primary" type="submit" id="submitButton"
+              disabled={!$instanceNameInSearch || $logInToInstanceLoading}>
+        Log in
+      </button>
+    </form>
+
+    {#if $copyPasteMode }
+      <form aria-label="Enter code" on:submit="onSubmitOauth(event)">
+        <label for="oauthCodeInput">Code:</label>
+        <input type="text" id="oauthCodeInput"
+               bind:value='oauthCode' placeholder="Enter code" required
+        >
+        <button class="primary" type="submit" id="submitOauthButton"
+                disabled={!oauthCode}>
+          Submit
+        </button>
+      </form>
     {/if}
-
-    {#if $logInToInstanceError && $logInToInstanceErrorForText === $instanceNameInSearch}
-      <div class="form-error form-error-user-error" role="alert">
-        Error: {$logInToInstanceError}
-      </div>
-    {/if}
-
-    <noscript>
-      <div class="form-error" role="alert">
-        You must enable JavaScript to log in.
-      </div>
-    </noscript>
-
-    <label class="add-new-instance-label" for="instanceInput">Instance:</label>
-    <input class="add-new-instance-input" type="text" inputmode="url" id="instanceInput"
-           bind:value='$instanceNameInSearch' placeholder="Enter instance name" required
-    >
-    <button class="primary add-new-instance-button" type="submit" id="submitButton"
-            disabled={!$instanceNameInSearch || $logInToInstanceLoading}>
-      Log in
-    </button>
-  </form>
+  </div>
 
   {#if !$isUserLoggedIn}
+    <p>
+      Don't have an
+      <Tooltip
+        text="instance"
+        tooltipText="An instance is your Mastodon home server, such as mastodon.social or cybre.space."
+      />
+      ?
+      <ExternalLink href="https://joinmastodon.org">Join Mastodon!</ExternalLink>
+    </p>
+  {/if}
   <p>
-    Don't have an
-    <Tooltip
-      text="instance"
-      tooltipText="An instance is your Mastodon home server, such as mastodon.social or cybre.space."
-    />
-    ?
-    <ExternalLink href="https://joinmastodon.org">Join Mastodon!</ExternalLink>
+    {#if $copyPasteMode}
+      Switch back to
+    {:else}
+      Trouble logging in? Switch to
+    {/if}
+    <button on:click="onCopyPasteModeButtonClick()"
+            class="copy-paste-mode-button"
+            aria-pressed={$copyPasteMode}>
+      {$copyPasteMode ? 'regular' : 'basic'} login mode
+    </button>.
   </p>
+  {#if $copyPasteMode}
+    <InfoAside className="add-new-instance-aside">
+      In basic login mode, click "log in" to open a new window. Then copy the code and paste it above.
+    </InfoAside>
   {/if}
 </SettingsLayout>
 <style>
-  .form-error {
-    border: 2px solid red;
-    border-radius: 2px;
-    padding: 10px;
-    font-size: 1.3em;
-    margin: 5px;
-    background-color: var(--main-bg);
-  }
-  .add-new-instance-input {
-    min-width: 70%;
-    max-width: 100%;
-    background-color: var(--input-bg);
-  }
-
   .add-new-instance {
     background: var(--form-bg);
     padding: 5px 10px 15px;
@@ -68,13 +86,41 @@
     border-radius: 4px;
   }
 
-  .add-new-instance-label, .add-new-instance-input, .add-new-instance-button {
+  .form-error {
+    border: 2px solid red;
+    border-radius: 2px;
+    padding: 10px;
+    font-size: 1.3em;
+    margin: 5px;
+    background-color: var(--main-bg);
+  }
+  input {
+    min-width: 70%;
+    max-width: 100%;
+    background-color: var(--input-bg);
+  }
+
+  label, input, button, :global(.add-new-instance-aside) {
     display: block;
     margin: 20px 5px;
   }
 
+  button.copy-paste-mode-button {
+    margin: 0;
+    padding: 0;
+    display: inline-block;
+    background: none;
+    border: none;
+    font-size: 1em;
+    color: var(--anchor-text);
+  }
+
+  button.copy-paste-mode-button:hover {
+    text-decoration: underline;
+  }
+
   @media (max-width: 767px) {
-    .add-new-instance-input {
+    input {
       min-width: 95%;
     }
   }
@@ -83,10 +129,11 @@
 <script>
   import SettingsLayout from '../../../_components/settings/SettingsLayout.html'
   import { store } from '../../../_store/store'
-  import { logInToInstance, handleOauthCode } from '../../../_actions/addInstance'
+  import { logInToInstance, handleOauthCode, handleCopyPasteOauthCode } from '../../../_actions/addInstance'
   import ExternalLink from '../../../_components/ExternalLink.html'
   import { testHasIndexedDB, testHasLocalStorage } from '../../../_utils/testStorage'
   import Tooltip from '../../../_components/Tooltip.html'
+  import InfoAside from '../../../_components/InfoAside.html'
 
   export default {
     async oncreate () {
@@ -102,18 +149,30 @@
     components: {
       SettingsLayout,
       ExternalLink,
-      Tooltip
+      Tooltip,
+      InfoAside
     },
     store: () => store,
     data: () => ({
       hasIndexedDB: true,
-      hasLocalStorage: true
+      hasLocalStorage: true,
+      oauthCode: ''
     }),
     methods: {
-      onSubmit (event) {
+      onSubmitInstance (event) {
         event.preventDefault()
         event.stopPropagation()
         logInToInstance()
+      },
+      onSubmitOauth (event) {
+        event.preventDefault()
+        event.stopPropagation()
+        handleCopyPasteOauthCode(this.get().oauthCode)
+      },
+      onCopyPasteModeButtonClick () {
+        const { copyPasteMode } = this.store.get()
+        console.log('copyPasteMode', copyPasteMode)
+        this.store.set({ copyPasteMode: !copyPasteMode })
       }
     }
   }
diff --git a/src/routes/_pages/settings/wellness.html b/src/routes/_pages/settings/wellness.html
index 78be0072..f31dedab 100644
--- a/src/routes/_pages/settings/wellness.html
+++ b/src/routes/_pages/settings/wellness.html
@@ -44,13 +44,10 @@
     </label>
   </form>
 
-  <aside>
-    <SvgIcon href="#fa-info-circle" className="aside-icon" />
-    <span>
-      You can filter or disable notifications in the
-      <a rel="prefetch" href="/settings/instances{$currentInstance ? '/' + $currentInstance : ''}">instance settings</a>.
-    </span>
-  </aside>
+  <InfoAside className="wellness-aside">
+    You can filter or disable notifications in the
+    <a rel="prefetch" href="/settings/instances{$currentInstance ? '/' + $currentInstance : ''}">instance settings</a>.
+  </InfoAside>
 
   <h2>UI</h2>
 
@@ -78,26 +75,8 @@
     display: block;
     padding: 5px 0;
   }
-  aside {
-    font-size: 1.2em;
+  :global(.wellness-aside) {
     margin: 20px 10px 0px 10px;
-    color: var(--deemphasized-text-color);
-    display: flex;
-    align-items: center;
-  }
-  aside a {
-    text-decoration: underline;
-    color: var(--deemphasized-text-color);
-  }
-  aside span {
-    flex: 1;
-  }
-  :global(.aside-icon) {
-    fill: var(--deemphasized-text-color);
-    width: 18px;
-    height: 18px;
-    margin: 0 10px 0 5px;
-    min-width: 18px;
   }
 
   @media (max-width: 240px) {
@@ -110,7 +89,7 @@
   import SettingsLayout from '../../_components/settings/SettingsLayout.html'
   import { store } from '../../_store/store'
   import ExternalLink from '../../_components/ExternalLink.html'
-  import SvgIcon from '../../_components/SvgIcon.html'
+  import InfoAside from '../../_components/InfoAside.html'
 
   export default {
     oncreate () {
@@ -119,7 +98,7 @@
     components: {
       SettingsLayout,
       ExternalLink,
-      SvgIcon
+      InfoAside
     },
     methods: {
       flushChangesToCheckAll () {
diff --git a/tests/spec/002-login-spec.js b/tests/spec/002-login-spec.js
index 481e5ec9..eceaa843 100644
--- a/tests/spec/002-login-spec.js
+++ b/tests/spec/002-login-spec.js
@@ -1,7 +1,7 @@
 import { Selector as $ } from 'testcafe'
 import {
   addInstanceButton,
-  authorizeInput, confirmationDialogOKButton,
+  authorizeInput, confirmationDialogOKButton, copyPasteModeButton,
   emailInput,
   formError,
   getFirstVisibleStatus, getNthStatus, getOpacity,
@@ -9,10 +9,10 @@ import {
   homeNavButton,
   instanceInput,
   logInToInstanceLink,
-  mastodonLogInButton,
+  mastodonLogInButton, oauthCodeInput,
   passwordInput, reload,
   settingsButton,
-  sleep
+  sleep, submitOauthButton
 } from '../utils'
 import { loginAsFoobar } from '../roles'
 
@@ -96,3 +96,13 @@ test('Logs in, refreshes, then logs out', async t => {
     .click(homeNavButton)
     .expect(getOpacity('.hidden-from-ssr')()).eql('1')
 })
+
+test('Shows error when entering only oauth code in basic mode', async t => {
+  await t
+    .click(logInToInstanceLink)
+    .click(copyPasteModeButton)
+    .typeText(oauthCodeInput, 'blahblahblah')
+    .click(submitOauthButton)
+    .expect(formError.exists).ok()
+    .expect(formError.innerText).contains('You must log in to an instance first')
+})
diff --git a/tests/utils.js b/tests/utils.js
index c26b5f92..4b5b7ac5 100644
--- a/tests/utils.js
+++ b/tests/utils.js
@@ -29,6 +29,8 @@ export const emailInput = $('input#user_email')
 export const passwordInput = $('input#user_password')
 export const authorizeInput = $('button[type=submit]:not(.negative)')
 export const logInToInstanceLink = $('a[href="/settings/instances/add"]')
+export const copyPasteModeButton = $('.copy-paste-mode-button')
+export const oauthCodeInput = $('#oauthCodeInput')
 export const searchInput = $('.search-input')
 export const postStatusButton = $('.compose-box-button')
 export const showMoreButton = $('.more-items-header button')
@@ -39,6 +41,7 @@ export const accountProfileFollowButton = $('.account-profile .account-profile-f
 export const goBackButton = $('.dynamic-page-go-back')
 export const accountProfileMoreOptionsButton = $('.account-profile-more-options button')
 export const addInstanceButton = $('#submitButton')
+export const submitOauthButton = $('#submitOauthButton')
 export const mastodonLogInButton = $('button[type="submit"]')
 export const followsButton = $('.account-profile-details > *:nth-child(2)')
 export const followersButton = $('.account-profile-details > *:nth-child(3)')