Merge branch 'ethereum' into 'develop'

Mitra: support Ethereum login

See merge request soapbox-pub/soapbox-fe!1034

app/soapbox/actions/external_auth.js

@@ -13,7 +13,9 @@ import { authLoggedIn, verifyCredentials, switchAccount } from 'soapbox/actions/
 import { obtainOAuthToken } from 'soapbox/actions/oauth';
 import { parseBaseURL } from 'soapbox/utils/auth';
 import sourceCode from 'soapbox/utils/code';
+import { getWalletAndSign } from 'soapbox/utils/ethereum';
 import { getFeatures } from 'soapbox/utils/features';
+import { getQuirks } from 'soapbox/utils/quirks';
 
 import { baseClient } from '../api';
 
@@ -32,11 +34,11 @@ const fetchExternalInstance = baseURL => {
     });
 };
 
-export function createAppAndRedirect(host) {
+function createExternalApp(instance, baseURL) {
   return (dispatch, getState) => {
-    const baseURL = parseBaseURL(host) || parseBaseURL(`https://${host}`);
+    // Mitra: skip creating the auth app
+    if (getQuirks(instance).noApps) return new Promise(f => f({}));
 
-    return fetchExternalInstance(baseURL).then(instance => {
     const { scopes } = getFeatures(instance);
 
     const params = {
@@ -46,7 +48,15 @@ export function createAppAndRedirect(host) {
       scopes,
     };
 
-      return dispatch(createApp(params, baseURL)).then(app => {
+    return dispatch(createApp(params, baseURL));
+  };
+}
+
+function externalAuthorize(instance, baseURL) {
+  return (dispatch, getState) => {
+    const { scopes } = getFeatures(instance);
+
+    return dispatch(createExternalApp(instance, baseURL)).then(app => {
       const { client_id, redirect_uri } = app;
 
       const query = new URLSearchParams({
@@ -62,6 +72,48 @@ export function createAppAndRedirect(host) {
 
       window.location.href = `${baseURL}/oauth/authorize?${query.toString()}`;
     });
+  };
+}
+
+export function externalEthereumLogin(instance, baseURL) {
+  return (dispatch, getState) => {
+    const loginMessage = instance.get('login_message');
+
+    return getWalletAndSign(loginMessage).then(({ wallet, signature }) => {
+      return dispatch(createExternalApp(instance, baseURL)).then(app => {
+        const params = {
+          grant_type: 'ethereum',
+          wallet_address: wallet.toLowerCase(),
+          client_id: app.client_id,
+          client_secret: app.client_secret,
+          password: signature,
+          redirect_uri: 'urn:ietf:wg:oauth:2.0:oob',
+          scope: getFeatures(instance).scopes,
+        };
+
+        return dispatch(obtainOAuthToken(params, baseURL))
+          .then(token => dispatch(authLoggedIn(token)))
+          .then(({ access_token }) => dispatch(verifyCredentials(access_token, baseURL)))
+          .then(account => dispatch(switchAccount(account.id)))
+          .then(() => window.location.href = '/');
+      });
+    });
+  };
+}
+
+export function externalLogin(host) {
+  return (dispatch, getState) => {
+    const baseURL = parseBaseURL(host) || parseBaseURL(`https://${host}`);
+
+    return fetchExternalInstance(baseURL).then(instance => {
+      const features = getFeatures(instance);
+      const quirks = getQuirks(instance);
+
+      if (features.ethereumLogin && quirks.noOAuthForm) {
+        return dispatch(externalEthereumLogin(instance, baseURL));
+      } else {
+        return dispatch(externalAuthorize(instance, baseURL));
+      }
     });
   };
 }

app/soapbox/features/auth_login/components/login_form.js

@@ -15,11 +15,10 @@ const messages = defineMessages({
 
 const mapStateToProps = state => {
   const instance = state.get('instance');
-  const features = getFeatures(instance);
 
   return {
     baseURL: getBaseURL(state),
-    hasResetPasswordAPI: features.resetPasswordAPI,
+    features: getFeatures(instance),
   };
 };
 
@@ -28,7 +27,7 @@ export default @connect(mapStateToProps)
 class LoginForm extends ImmutablePureComponent {
 
   render() {
-    const { intl, isLoading, handleSubmit, baseURL, hasResetPasswordAPI } = this.props;
+    const { intl, isLoading, handleSubmit, baseURL, features } = this.props;
 
     return (
       <form className='simple_form new_user' method='post' onSubmit={handleSubmit}>
@@ -57,12 +56,8 @@ class LoginForm extends ImmutablePureComponent {
               autoCapitalize='off'
               required
             />
-            {/* <div className='input password user_password'>
-              <input
-              />
-            </div> */}
             <p className='hint subtle-hint'>
-              {hasResetPasswordAPI ? (
+              {features.resetPasswordAPI ? (
                 <Link to='/auth/reset_password'>
                   <FormattedMessage id='login.reset_password_hint' defaultMessage='Trouble logging in?' />
                 </Link>

app/soapbox/features/external_login/components/external_login_form.js

@@ -3,7 +3,7 @@ import ImmutablePureComponent from 'react-immutable-pure-component';
 import { injectIntl, FormattedMessage, defineMessages } from 'react-intl';
 import { connect } from 'react-redux';
 
-import { createAppAndRedirect, loginWithCode } from 'soapbox/actions/external_auth';
+import { externalLogin, loginWithCode } from 'soapbox/actions/external_auth';
 import LoadingIndicator from 'soapbox/components/loading_indicator';
 import { SimpleForm, FieldsGroup, TextInput } from 'soapbox/features/forms';
 
@@ -31,7 +31,7 @@ class ExternalLoginForm extends ImmutablePureComponent {
 
     this.setState({ isLoading: true });
 
-    dispatch(createAppAndRedirect(host))
+    dispatch(externalLogin(host))
       .then(() => this.setState({ isLoading: false }))
       .catch(() => this.setState({ isLoading: false }));
   }

app/soapbox/reducers/instance.js

@@ -50,7 +50,7 @@ const initialState = ImmutableMap({
 
 // Build Mastodon configuration from Pleroma instance
 const pleromaToMastodonConfig = instance => {
-  return {
+  return ImmutableMap({
     statuses: ImmutableMap({
       max_characters: instance.get('max_toot_chars'),
     }),
@@ -60,7 +60,7 @@ const pleromaToMastodonConfig = instance => {
       min_expiration: instance.getIn(['poll_limits', 'min_expiration']),
       max_expiration: instance.getIn(['poll_limits', 'max_expiration']),
     }),
-  };
+  });
 };
 
 // Use new value only if old value is undefined

app/soapbox/utils/ethereum.js

@@ -0,0 +1,26 @@
+export const ethereum = () => window.ethereum;
+
+export const hasEthereum = () => Boolean(ethereum());
+
+// Requests an Ethereum wallet from the browser
+// Returns a Promise containing the Ethereum wallet address (string).
+export const getWallet = () => {
+  return ethereum().request({ method: 'eth_requestAccounts' })
+    .then(wallets => wallets[0]);
+};
+
+// Asks the browser to sign a message with Ethereum.
+// Returns a Promise containing the signature (string).
+export const signMessage = (wallet, message) => {
+  return ethereum().request({ method: 'personal_sign', params: [message, wallet] });
+};
+
+// Combines the above functions.
+// Returns an object with the `wallet` and `signature`
+export const getWalletAndSign = message => {
+  return getWallet().then(wallet => {
+    return signMessage(wallet, message).then(signature => {
+      return { wallet, signature };
+    });
+  });
+};

app/soapbox/utils/features.js

@@ -9,6 +9,7 @@ const any = arr => arr.some(Boolean);
 // For uglification
 export const MASTODON = 'Mastodon';
 export const PLEROMA  = 'Pleroma';
+export const MITRA    = 'Mitra';
 
 export const getFeatures = createSelector([
   instance => parseVersion(instance.get('version')),
@@ -83,6 +84,7 @@ export const getFeatures = createSelector([
     accountEndorsements: v.software === PLEROMA && gte(v.version, '2.4.50'),
     quotePosts: v.software === PLEROMA && gte(v.version, '2.4.50'),
     birthdays: v.software === PLEROMA && gte(v.version, '2.4.50'),
+    ethereumLogin: v.software === MITRA,
   };
 });
 

app/soapbox/utils/quirks.js

@@ -1,12 +1,17 @@
-import { parseVersion } from './features';
+import { createSelector } from 'reselect';
+
+import { parseVersion, PLEROMA, MITRA } from './features';
 
 // For solving bugs between API implementations
-export const getQuirks = instance => {
+export const getQuirks = createSelector([
-  const v = parseVersion(instance.get('version'));
+  instance => parseVersion(instance.get('version')),
+], (v) => {
   return {
-    invertedPagination: v.software === 'Pleroma',
+    invertedPagination: v.software === PLEROMA,
-  };
+    noApps: v.software === MITRA,
+    noOAuthForm: v.software === MITRA,
   };
+});
 
 export const getNextLinkName = getState =>
   getQuirks(getState().get('instance')).invertedPagination ? 'prev' : 'next';