get certifications from BadgeReg, show them in accounts overview

js/src/contracts/badgereg.js

@@ -18,40 +18,66 @@ import { bytesToHex, hex2Ascii } from '~/api/util/format';
 
 import ABI from './abi/certifier.json';
 
-const ZERO = '0x0000000000000000000000000000000000000000000000000000000000000000';
+const ZERO20 = '0x0000000000000000000000000000000000000000';
+const ZERO32 = '0x0000000000000000000000000000000000000000000000000000000000000000';
 
 export default class BadgeReg {
   constructor (api, registry) {
     this._api = api;
     this._registry = registry;
 
     registry.getContract('badgereg');
-    this.certifiers = {}; // by name
+    this.certifiers = []; // by id
     this.contracts = {}; // by name
   }
 
-  fetchCertifier (name) {
-    if (this.certifiers[name]) {
-      return Promise.resolve(this.certifiers[name]);
+  certifierCount () {
+    return this._registry.getContract('badgereg')
+      .then((badgeReg) => {
+        return badgeReg.instance.badgeCount.call({}, [])
+          .then((count) => count.valueOf());
+      });
+  }
+
+  fetchCertifier (id) {
+    if (this.certifiers[id]) {
+      return Promise.resolve(this.certifiers[id]);
     }
     return this._registry.getContract('badgereg')
       .then((badgeReg) => {
-        return badgeReg.instance.fromName.call({}, [name])
-        .then(([ id, address ]) => {
-          return Promise.all([
-            badgeReg.instance.meta.call({}, [id, 'TITLE']),
-            badgeReg.instance.meta.call({}, [id, 'IMG'])
-          ])
-            .then(([ title, img ]) => {
-              title = bytesToHex(title);
-              title = title === ZERO ? null : hex2Ascii(title);
-              if (bytesToHex(img) === ZERO) img = null;
+        return badgeReg.instance.badge.call({}, [ id ]);
+      })
+      .then(([ address, name ]) => {
+        if (address === ZERO20) {
+          throw new Error(`Certifier ${id} does not exist.`);
+        }
 
-              const data = { address, name, title, icon: img };
-              this.certifiers[name] = data;
-              return data;
-            });
-        });
+        name = bytesToHex(name);
+        name = name === ZERO32
+          ? null
+          : hex2Ascii(name);
+        return this.fetchMeta(id)
+          .then(({ title, icon }) => {
+            const data = { address, id, name, title, icon };
+            this.certifiers[id] = data;
+            return data;
+          });
+      });
+  }
+
+  fetchMeta (id) {
+    return this._registry.getContract('badgereg')
+      .then((badgeReg) => {
+        return Promise.all([
+          badgeReg.instance.meta.call({}, [id, 'TITLE']),
+          badgeReg.instance.meta.call({}, [id, 'IMG'])
+        ]);
+      })
+      .then(([ title, icon ]) => {
+        title = bytesToHex(title);
+        title = title === ZERO32 ? null : hex2Ascii(title);
+        if (bytesToHex(icon) === ZERO32) icon = null;
+        return { title, icon };
       });
   }
 

js/src/redux/providers/certifications/actions.js

@@ -14,10 +14,18 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
+export const fetchCertifiers = () => ({
+  type: 'fetchCertifiers'
+});
+
 export const fetchCertifications = (address) => ({
   type: 'fetchCertifications', address
 });
 
-export const addCertification = (address, name, title, icon) => ({
-  type: 'addCertification', address, name, title, icon
+export const addCertification = (address, id, name, title, icon) => ({
+  type: 'addCertification', address, id, name, title, icon
+});
+
+export const removeCertification = (address, id) => ({
+  type: 'removeCertification', address, id
 });

js/src/redux/providers/certifications/middleware.js

@@ -14,38 +14,90 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
-import Contracts from '~/contracts';
-import { addCertification } from './actions';
+import { uniq } from 'lodash';
 
-const knownCertifiers = [ 'smsverification' ];
+import ABI from '~/contracts/abi/certifier.json';
+import Contract from '~/api/contract';
+import Contracts from '~/contracts';
+import { addCertification, removeCertification } from './actions';
 
 export default class CertificationsMiddleware {
   toMiddleware () {
-    return (store) => (next) => (action) => {
-      if (action.type !== 'fetchCertifications') {
-        return next(action);
-      }
+    const api = Contracts.get()._api;
+    const badgeReg = Contracts.get().badgeReg;
+    const contract = new Contract(api, ABI);
+    const Confirmed = contract.events.find((e) => e.name === 'Confirmed');
+    const Revoked = contract.events.find((e) => e.name === 'Revoked');
 
-      const { address } = action;
-      const badgeReg = Contracts.get().badgeReg;
-
-      knownCertifiers.forEach((name) => {
-        badgeReg.fetchCertifier(name)
-          .then((cert) => {
-            return badgeReg.checkIfCertified(cert.address, address)
-              .then((isCertified) => {
-                if (isCertified) {
-                  const { name, title, icon } = cert;
-                  store.dispatch(addCertification(address, name, title, icon));
-                }
-              });
-          })
-          .catch((err) => {
-            if (err) {
-              console.error(`Failed to check if ${address} certified by ${name}:`, err);
+    let certifiers = [];
+    let accounts = []; // these are addresses
+
+    const fetchConfirmedEvents = (dispatch) => {
+      if (certifiers.length === 0 || accounts.length === 0) return;
+      api.eth.getLogs({
+        fromBlock: 0,
+        toBlock: 'latest',
+        address: certifiers.map((c) => c.address),
+        topics: [ [ Confirmed.signature, Revoked.signature ], accounts ]
+      })
+        .then((logs) => contract.parseEventLogs(logs))
+        .then((logs) => {
+          logs.forEach((log) => {
+            const certifier = certifiers.find((c) => c.address === log.address);
+            if (!certifier) {
+              throw new Error(`Could not find certifier at ${log.address}.`);
+            }
+            const { id, name, title, icon } = certifier;
+
+            if (log.event === 'Revoked') {
+              dispatch(removeCertification(log.params.who.value, id));
+            } else {
+              dispatch(addCertification(log.params.who.value, id, name, title, icon));
             }
           });
-      });
+        })
+        .catch((err) => {
+          console.error('Failed to fetch Confirmed events:', err);
+        });
+    };
+
+    return (store) => (next) => (action) => {
+      switch (action.type) {
+        case 'fetchCertifiers':
+          badgeReg.certifierCount().then((count) => {
+            new Array(+count).fill(null).forEach((_, id) => {
+              badgeReg.fetchCertifier(id)
+                .then((cert) => {
+                  if (!certifiers.some((c) => c.id === cert.id)) {
+                    certifiers = certifiers.concat(cert);
+                    fetchConfirmedEvents(store.dispatch);
+                  }
+                })
+                .catch((err) => {
+                  console.warn(`Could not fetch certifier ${id}:`, err);
+                });
+            });
+          });
+
+          break;
+        case 'fetchCertifications':
+          const { address } = action;
+
+          if (!accounts.includes(address)) {
+            accounts = accounts.concat(address);
+            fetchConfirmedEvents(store.dispatch);
+          }
+
+          break;
+        case 'setVisibleAccounts':
+          const { addresses } = action;
+          accounts = uniq(accounts.concat(addresses));
+          fetchConfirmedEvents(store.dispatch);
+
+          break;
+        default:
+          next(action);
+      }
     };
   }
 }

js/src/redux/providers/certifications/reducer.js

@@ -17,17 +17,27 @@
 const initialState = {};
 
 export default (state = initialState, action) => {
-  if (action.type !== 'addCertification') {
-    return state;
+  if (action.type === 'addCertification') {
+    const { address, id, name, icon, title } = action;
+    const certifications = state[address] || [];
+
+    if (certifications.some((c) => c.id === id)) {
+      return state;
+    }
+
+    const newCertifications = certifications.concat({
+      id, name, icon, title
+    });
+    return { ...state, [address]: newCertifications };
   }
 
-  const { address, name, icon, title } = action;
-  const certifications = state[address] || [];
+  if (action.type === 'removeCertification') {
+    const { address, id } = action;
+    const certifications = state[address] || [];
 
-  if (certifications.some((c) => c.name === name)) {
-    return state;
+    const newCertifications = certifications.filter((c) => c.id !== id);
+    return { ...state, [address]: newCertifications };
   }
-  const newCertifications = certifications.concat({ name, icon, title });
 
-  return { ...state, [address]: newCertifications };
+  return state;
 };

js/src/ui/Certifications/certifications.js

@@ -16,10 +16,8 @@
 
 import React, { Component, PropTypes } from 'react';
 import { connect } from 'react-redux';
-import { bindActionCreators } from 'redux';
 
 import { hashToImageUrl } from '~/redux/providers/imagesReducer';
-import { fetchCertifications } from '~/redux/providers/certifications/actions';
 
 import defaultIcon from '../../../assets/images/certifications/unknown.svg';
 
@@ -29,14 +27,7 @@ class Certifications extends Component {
   static propTypes = {
     account: PropTypes.string.isRequired,
     certifications: PropTypes.array.isRequired,
-    dappsUrl: PropTypes.string.isRequired,
-
-    fetchCertifications: PropTypes.func.isRequired
-  }
-
-  componentWillMount () {
-    const { account, fetchCertifications } = this.props;
-    fetchCertifications(account);
+    dappsUrl: PropTypes.string.isRequired
   }
 
   render () {
@@ -73,15 +64,13 @@ function mapStateToProps (_, initProps) {
 
   return (state) => {
     const certifications = state.certifications[account] || [];
-    return { certifications };
-  };
-}
+    const dappsUrl = state.api.dappsUrl;
 
-function mapDispatchToProps (dispatch) {
-  return bindActionCreators({ fetchCertifications }, dispatch);
+    return { certifications, dappsUrl };
+  };
 }
 
 export default connect(
   mapStateToProps,
-  mapDispatchToProps
+  null
 )(Certifications);

js/src/views/Account/Header/header.js

@@ -23,10 +23,6 @@ import Certifications from '~/ui/Certifications';
 import styles from './header.css';
 
 export default class Header extends Component {
-  static contextTypes = {
-    api: PropTypes.object
-  };
-
   static propTypes = {
     account: PropTypes.object,
     balance: PropTypes.object,
@@ -44,7 +40,6 @@ export default class Header extends Component {
   };
 
   render () {
-    const { api } = this.context;
     const { account, balance, className, children, hideName } = this.props;
     const { address, meta, uuid } = account;
 
@@ -85,7 +80,6 @@ export default class Header extends Component {
               balance={ balance } />
             <Certifications
               account={ account.address }
-              dappsUrl={ api.dappsUrl }
             />
           </div>
           { children }

js/src/views/Account/account.js

@@ -31,6 +31,7 @@ import shapeshiftBtn from '~/../assets/images/shapeshift-btn.png';
 import Header from './Header';
 import Transactions from './Transactions';
 import { setVisibleAccounts } from '~/redux/providers/personalActions';
+import { fetchCertifiers, fetchCertifications } from '~/redux/providers/certifications/actions';
 
 import SMSVerificationStore from '~/modals/Verification/sms-store';
 import EmailVerificationStore from '~/modals/Verification/email-store';
@@ -44,6 +45,8 @@ class Account extends Component {
 
   static propTypes = {
     setVisibleAccounts: PropTypes.func.isRequired,
+    fetchCertifiers: PropTypes.func.isRequired,
+    fetchCertifications: PropTypes.func.isRequired,
     images: PropTypes.object.isRequired,
 
     params: PropTypes.object,
@@ -63,6 +66,7 @@ class Account extends Component {
   }
 
   componentDidMount () {
+    this.props.fetchCertifiers();
     this.setVisibleAccounts();
   }
 
@@ -80,9 +84,10 @@ class Account extends Component {
   }
 
   setVisibleAccounts (props = this.props) {
-    const { params, setVisibleAccounts } = props;
+    const { params, setVisibleAccounts, fetchCertifications } = props;
     const addresses = [ params.address ];
     setVisibleAccounts(addresses);
+    fetchCertifications(params.address);
   }
 
   render () {
@@ -353,7 +358,9 @@ function mapStateToProps (state) {
 
 function mapDispatchToProps (dispatch) {
   return bindActionCreators({
-    setVisibleAccounts
+    setVisibleAccounts,
+    fetchCertifiers,
+    fetchCertifications
   }, dispatch);
 }