Fix tokens and badges (#6725)

* Update new token fetching

* Working Certifications Monitoring

* Update on Certification / Revoke

* Fix none-fetched tokens value display

* Fix tests

js/package-lock.json

@@ -428,7 +428,7 @@
         "glob": {
           "version": "7.1.2",
           "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.2.tgz",
-          "integrity": "sha512-MJTUg1kjuLeQCJ+ccE4Vpa6kKVXkPYJ2mOCQyUuKLcLQsdrMCpBPUi8qVE6+YuaJkozeA9NusTAw3hLr8Xe5EQ==",
+          "integrity": "sha1-wZyd+aAocC1nhhI4SmVSQExjbRU=",
           "dev": true,
           "requires": {
             "fs.realpath": "1.0.0",
@@ -716,7 +716,7 @@
         "glob": {
           "version": "7.1.2",
           "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.2.tgz",
-          "integrity": "sha512-MJTUg1kjuLeQCJ+ccE4Vpa6kKVXkPYJ2mOCQyUuKLcLQsdrMCpBPUi8qVE6+YuaJkozeA9NusTAw3hLr8Xe5EQ==",
+          "integrity": "sha1-wZyd+aAocC1nhhI4SmVSQExjbRU=",
           "dev": true,
           "requires": {
             "fs.realpath": "1.0.0",
@@ -4140,7 +4140,7 @@
         "glob": {
           "version": "7.1.2",
           "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.2.tgz",
-          "integrity": "sha512-MJTUg1kjuLeQCJ+ccE4Vpa6kKVXkPYJ2mOCQyUuKLcLQsdrMCpBPUi8qVE6+YuaJkozeA9NusTAw3hLr8Xe5EQ==",
+          "integrity": "sha1-wZyd+aAocC1nhhI4SmVSQExjbRU=",
           "dev": true,
           "requires": {
             "fs.realpath": "1.0.0",
@@ -11654,7 +11654,7 @@
         "string-width": {
           "version": "2.1.1",
           "resolved": "https://registry.npmjs.org/string-width/-/string-width-2.1.1.tgz",
-          "integrity": "sha512-nOqH59deCq9SRHlxq1Aw85Jnt4w6KvLKqWVik6oA9ZklXLNIOlqg4F2yrT1MVaTjAqvVwdfeZ7w7aCvJD7ugkw==",
+          "integrity": "sha1-q5Pyeo3BPSjKyBXEYhQ6bZASrp4=",
           "dev": true,
           "requires": {
             "is-fullwidth-code-point": "2.0.0",
@@ -12611,7 +12611,7 @@
         "async": {
           "version": "2.5.0",
           "resolved": "https://registry.npmjs.org/async/-/async-2.5.0.tgz",
-          "integrity": "sha512-e+lJAJeNWuPCNyxZKOBdaJGyLGHugXVQtrAwtuAe2vhxTYxFTKE73p8JuTmdH0qdQZtDvI4dhJwjZc5zsfIsYw==",
+          "integrity": "sha1-hDGQ/WtzV6C54clW7d3V7IRitU0=",
           "dev": true,
           "requires": {
             "lodash": "4.17.2"
@@ -13016,7 +13016,7 @@
         "commander": {
           "version": "2.11.0",
           "resolved": "https://registry.npmjs.org/commander/-/commander-2.11.0.tgz",
-          "integrity": "sha512-b0553uYA5YAEGgyYIGYROzKQ7X5RAqedkfjiZxwi0kL1g3bOaBNNZfYkzt/CL0umgD5wc9Jec2FbB98CjkMRvQ=="
+          "integrity": "sha1-FXFS/R56bI2YpbcVzzdt+SgARWM="
         },
         "detect-indent": {
           "version": "5.0.0",

js/src/contracts/badgereg.js

@@ -105,7 +105,7 @@ export default class BadgeReg {
         ]);
       })
       .then(([ title, icon ]) => {
-        title = bytesToHex(title);
+        title = bytesToHex(title).replace(/(00)+$/, '');
         title = title === ZERO32 ? null : hexToAscii(title);
 
         if (bytesToHex(icon) === ZERO32) {

js/src/dapps/tokenreg/Application/application.css

@@ -29,6 +29,7 @@
   left: 0;
   opacity: 1;
   padding: 1.5em;
+  cursor: pointer;
   position: fixed;
   right: 50%;
   z-index: 100;

js/src/dapps/tokenreg/Application/application.js

@@ -43,8 +43,13 @@ export default class Application extends Component {
     contract: PropTypes.object
   };
 
+  state = {
+    hideWarning: false
+  };
+
   render () {
     const { isLoading, contract } = this.props;
+    const { hideWarning } = this.state;
 
     if (isLoading) {
       return (
@@ -62,9 +67,15 @@ export default class Application extends Component {
         <Actions />
 
         <Tokens />
-        <div className={ styles.warning }>
+        {
+          hideWarning
+          ? null
+          : (
+            <div className={ styles.warning } onClick={ this.handleHideWarning }>
               WARNING: The token registry is experimental. Please ensure that you understand the steps, risks, benefits & consequences of registering a token before doing so. A non-refundable fee of { api.util.fromWei(contract.fee).toFormat(3) }<small>ETH</small> is required for all registrations.
             </div>
+          )
+        }
       </div>
     );
   }
@@ -74,4 +85,8 @@ export default class Application extends Component {
       muiTheme
     };
   }
+
+  handleHideWarning = () => {
+    this.setState({ hideWarning: true });
+  }
 }

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

@@ -14,14 +14,6 @@
 // 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, id, name, title, icon) => ({
   type: 'addCertification', address, id, name, title, icon
 });

js/src/redux/providers/certifications/certifiers.monitor.js

@@ -0,0 +1,342 @@
+// Copyright 2015-2017 Parity Technologies (UK) Ltd.
+// This file is part of Parity.
+
+// Parity is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity.  If not, see <http://www.gnu.org/licenses/>.
+
+import { range } from 'lodash';
+
+import { addCertification, removeCertification } from './actions';
+
+import { getLogger, LOG_KEYS } from '~/config';
+import Contract from '~/api/contract';
+import { bytesToHex, hexToAscii } from '~/api/util/format';
+import Contracts from '~/contracts';
+import CertifierABI from '~/contracts/abi/certifier.json';
+import { querier } from './enhanced-querier';
+
+const log = getLogger(LOG_KEYS.CertificationsMiddleware);
+
+let self = null;
+
+export default class CertifiersMonitor {
+  constructor (api, store) {
+    this._api = api;
+    this._name = 'Certifiers';
+    this._store = store;
+
+    this._contract = new Contract(this.api, CertifierABI);
+    this._contractEvents = [ 'Confirmed', 'Revoked' ]
+      .map((name) => this.contract.events.find((e) => e.name === name));
+
+    this.certifiers = {};
+    this.fetchedAccounts = {};
+
+    this.load();
+  }
+
+  static get () {
+    if (self) {
+      return self;
+    }
+
+    self = new CertifiersMonitor();
+    return self;
+  }
+
+  static init (api, store) {
+    if (!self) {
+      self = new CertifiersMonitor(api, store);
+    }
+  }
+
+  get api () {
+    return this._api;
+  }
+
+  get contract () {
+    return this._contract;
+  }
+
+  get contractEvents () {
+    return this._contractEvents;
+  }
+
+  get name () {
+    return this._name;
+  }
+
+  get store () {
+    return this._store;
+  }
+
+  get registry () {
+    return this._registry;
+  }
+
+  get registryEvents () {
+    return this._registryEvents;
+  }
+
+  checkFilters () {
+    this.checkCertifiersFilter();
+    this.checkRegistryFilter();
+  }
+
+  checkCertifiersFilter () {
+    if (!this.certifiersFilter) {
+      return;
+    }
+
+    this.api.eth.getFilterChanges(this.certifiersFilter)
+      .then((logs) => {
+        if (logs.length === 0) {
+          return;
+        }
+
+        const parsedLogs = this.contract.parseEventLogs(logs).filter((log) => log.params);
+
+        log.debug('received certifiers logs', parsedLogs);
+
+        const promises = parsedLogs.map((log) => {
+          const account = log.params.who.value;
+          const certifier = Object.values(this.certifiers).find((c) => c.address === log.address);
+
+          if (!certifier) {
+            log.warn('could not find the certifier', { certifiers: this.certifiers, log });
+            return Promise.resolve();
+          }
+
+          return this.fetchAccount(account, { ids: [ certifier.id ] });
+        });
+
+        return Promise.all(promises);
+      })
+      .catch((error) => {
+        console.error(error);
+      });
+  }
+
+  checkRegistryFilter () {
+    if (!this.registryFilter) {
+      return;
+    }
+
+    this.api.eth.getFilterChanges(this.registryFilter)
+      .then((logs) => {
+        if (logs.length === 0) {
+          return;
+        }
+
+        const parsedLogs = this.contract.parseEventLogs(logs).filter((log) => log.params);
+        const indexes = parsedLogs.map((log) => log.params && log.params.id.value.toNumber());
+
+        log.debug('received registry logs', parsedLogs);
+        return this.fetchElements(indexes);
+      })
+      .catch((error) => {
+        console.error(error);
+      });
+  }
+
+  /**
+   * Initial load of the Monitor.
+   * Fetch the contract from the Registry, and
+   * load the elements addresses
+   */
+  load () {
+    const badgeReg = Contracts.get().badgeReg;
+
+    log.debug(`loading the ${this.name} monitor...`);
+    return badgeReg.getContract()
+      .then((registryContract) => {
+        this._registry = registryContract;
+        this._registryEvents = [ 'Registered', 'Unregistered', 'MetaChanged', 'AddressChanged' ]
+          .map((name) => this.registry.events.find((e) => e.name === name));
+
+        return this.registry.instance.badgeCount.call({});
+      })
+      .then((count) => {
+        log.debug(`found ${count.toFormat()} registered contracts for ${this.name}`);
+        return this.fetchElements(range(count.toNumber()));
+      })
+      .then(() => {
+        return this.setRegistryFilter();
+      })
+      .then(() => {
+        // Listen for new blocks
+        return this.api.subscribe('eth_blockNumber', (err) => {
+          if (err) {
+            return;
+          }
+
+          this.checkFilters();
+        });
+      })
+      .then(() => {
+        log.debug(`loaded the ${this.name} monitor!`, this.certifiers);
+      })
+      .catch((error) => {
+        log.error(error);
+      });
+  }
+
+  /**
+   * Fetch the given registered element
+   */
+  fetchElements (indexes) {
+    const badgeReg = Contracts.get().badgeReg;
+    const { instance } = this.registry;
+
+    const sorted = indexes.sort();
+    const from = sorted[0];
+    const last = sorted[sorted.length - 1];
+    const limit = last - from + 1;
+
+    // Fetch the address, name and owner in one batch
+    return querier(this.api, { address: instance.address, from, limit }, instance.badge)
+      .then((results) => {
+        this.certifiers = results
+          .map(([ address, name, owner ], index) => ({
+            address, owner,
+            id: index + from,
+            name: hexToAscii(bytesToHex(name).replace(/(00)+$/, ''))
+          }))
+          .reduce((certifiers, certifier) => {
+            const { id } = certifier;
+
+            if (!/^(0x)?0+$/.test(certifier.address)) {
+              certifiers[id] = certifier;
+            } else if (certifiers[id]) {
+              delete certifiers[id];
+            }
+
+            return certifiers;
+          }, {});
+
+        // Fetch the meta-data in serie
+        return Object.values(this.certifiers).reduce((promise, certifier) => {
+          return promise.then(() => badgeReg.fetchMeta(certifier.id))
+            .then((meta) => {
+              this.certifiers[certifier.id] = { ...certifier, ...meta };
+            });
+        }, Promise.resolve());
+      })
+      .then(() => log.debug('fetched certifiers', { certifiers: this.certifiers }))
+      // Fetch the know accounts in case it's an update of the certifiers
+      .then(() => this.fetchAccounts(Object.keys(this.fetchedAccounts), { ids: indexes, force: true }));
+  }
+
+  fetchAccounts (addresses, { ids = null, force = false } = {}) {
+    const newAddresses = force
+      ? addresses
+      : addresses.filter((address) => !this.fetchedAccounts[address]);
+
+    if (newAddresses.length === 0) {
+      return Promise.resolve();
+    }
+
+    log.debug(`fetching values for "${addresses.join(' ; ')}" in ${this.name}...`);
+    return newAddresses
+      .reduce((promise, address) => {
+        return promise.then(() => this.fetchAccount(address, { ids }));
+      }, Promise.resolve())
+      .then(() => {
+        log.debug(`fetched values for "${addresses.join(' ; ')}" in ${this.name}!`);
+      })
+      .then(() => this.setCertifiersFilter());
+  }
+
+  fetchAccount (address, { ids = null } = {}) {
+    let certifiers = Object.values(this.certifiers);
+
+    // Only fetch values for the givens ids, if any
+    if (ids) {
+      certifiers = certifiers.filter((certifier) => ids.includes(certifier.id));
+    }
+
+    certifiers
+      .reduce((promise, certifier) => {
+        return promise
+          .then(() => {
+            return this.contract.at(certifier.address).instance.certified.call({}, [ address ]);
+          })
+          .then((certified) => {
+            const { id, title, icon, name } = certifier;
+
+            this.fetchedAccounts[address] = true;
+
+            if (!certified) {
+              return this.store.dispatch(removeCertification(address, id));
+            }
+
+            log.debug('seen as certified', { address, id, name, icon });
+            this.store.dispatch(addCertification(address, id, name, title, icon));
+          });
+      }, Promise.resolve());
+  }
+
+  setCertifiersFilter () {
+    const accounts = Object.keys(this.fetchedAccounts);
+    const addresses = Object.values(this.certifiers).map((c) => c.address);
+    // The events have as first indexed data the account address
+    const topics = [
+      this.contractEvents.map((event) => '0x' + event.signature),
+      accounts
+    ];
+
+    if (accounts.length === 0 || addresses.length === 0) {
+      return;
+    }
+
+    const promise = this.certifiersFilter
+      ? this.api.eth.uninstallFilter(this.certifiersFilter)
+      : Promise.resolve();
+
+    log.debug('setting up registry filter', { topics, accounts, addresses });
+
+    return promise
+      .then(() => this.api.eth.newFilter({
+        fromBlock: 'latest',
+        toBlock: 'latest',
+        address: addresses,
+        topics
+      }))
+      .then((filterId) => {
+        this.certifiersFilter = filterId;
+      })
+      .catch((error) => {
+        console.error(error);
+      });
+  }
+
+  setRegistryFilter () {
+    const { address } = this.registry.instance;
+    const topics = [ this.registryEvents.map((event) => '0x' + event.signature) ];
+
+    log.debug('setting up registry filter', { topics, address });
+
+    return this.api.eth
+      .newFilter({
+        fromBlock: 'latest',
+        toBlock: 'latest',
+        address, topics
+      })
+      .then((filterId) => {
+        this.registryFilter = filterId;
+      })
+      .catch((error) => {
+        console.error(error);
+      });
+  }
+}

js/src/redux/providers/certifications/enhanced-querier.js

@@ -0,0 +1,96 @@
+// Copyright 2015-2017 Parity Technologies (UK) Ltd.
+// This file is part of Parity.
+
+// Parity is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity.  If not, see <http://www.gnu.org/licenses/>.
+
+import { padRight, padLeft } from '~/api/util/format';
+
+/**
+ * Bytecode of this contract:
+ *
+ *
+pragma solidity ^0.4.10;
+
+contract Querier {
+  function Querier
+    (address addr, bytes32 sign, uint out_size, uint from, uint limit)
+    public
+  {
+    // The size is 32 bytes for each
+    // value, plus 32 bytes for the count
+    uint m_size = out_size * limit + 32;
+
+    bytes32 p_return;
+    uint p_in;
+    uint p_out;
+
+    assembly {
+      p_return := mload(0x40)
+      mstore(0x40, add(p_return, m_size))
+
+      mstore(p_return, limit)
+
+      p_in := mload(0x40)
+      mstore(0x40, add(p_in, 0x24))
+
+      mstore(p_in, sign)
+
+      p_out := add(p_return, 0x20)
+    }
+
+    for (uint i = from; i < from + limit; i++) {
+      assembly {
+        mstore(add(p_in, 0x4), i)
+        call(gas, addr, 0x0, p_in, 0x24, p_out, out_size)
+        p_out := add(p_out, out_size)
+        pop
+      }
+    }
+
+    assembly {
+      return (p_return, m_size)
+    }
+  }
+}
+ */
+
+export const bytecode = '0x60606040523415600e57600080fd5b60405160a0806099833981016040528080519190602001805191906020018051919060200180519190602001805191505082810260200160008080806040519350848401604052858452604051602481016040528981529250505060208201855b858701811015609457806004840152878260248560008e5af15090870190600101606f565b8484f300';
+
+export const querier = (api, { address, from, limit }, method) => {
+  const { outputs, signature } = method;
+  const outLength = 32 * outputs.length;
+  const callargs = [
+    padLeft(address, 32),
+    padRight(signature, 32),
+    padLeft(outLength, 32),
+    padLeft(from, 32),
+    padLeft(limit, 32)
+  ].map((v) => v.slice(2)).join('');
+  const calldata = bytecode + callargs;
+
+  return api.eth.call({ data: calldata })
+    .then((result) => {
+      const data = result.slice(2);
+      const results = [];
+
+      for (let i = 0; i < limit; i++) {
+        const datum = data.substr(2 * (32 + i * outLength), 2 * outLength);
+        const decoded = method.decodeOutput('0x' + datum).map((t) => t.value);
+
+        results.push(decoded);
+      }
+
+      return results;
+    });
+};

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

@@ -14,222 +14,22 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
-import { uniq, range, debounce } from 'lodash';
-
-import { addCertification, removeCertification } from './actions';
-
-import { getLogger, LOG_KEYS } from '~/config';
-import Contract from '~/api/contract';
 import Contracts from '~/contracts';
-import CertifierABI from '~/contracts/abi/certifier.json';
-
-const log = getLogger(LOG_KEYS.CertificationsMiddleware);
-
-// TODO: move this to a more general place
-const updatableFilter = (api, onFilter) => {
-  let filter = null;
-
-  const update = (address, topics) => {
-    if (filter) {
-      filter = filter.then((filterId) => {
-        api.eth.uninstallFilter(filterId);
-      });
-    }
-
-    filter = (filter || Promise.resolve())
-      .then(() => api.eth.newFilter({
-        fromBlock: 'latest',
-        toBlock: 'latest',
-        address,
-        topics
-      }))
-      .then((filterId) => {
-        onFilter(filterId);
-        return filterId;
-      })
-      .catch((err) => {
-        console.error('Failed to create certifications filter:', err);
-      });
-
-    return filter;
-  };
-
-  return update;
-};
+import Monitor from './certifiers.monitor';
 
 export default class CertificationsMiddleware {
   toMiddleware () {
     const api = Contracts.get()._api;
-    const badgeReg = Contracts.get().badgeReg;
-
-    const contract = new Contract(api, CertifierABI);
-    const Confirmed = contract.events.find((e) => e.name === 'Confirmed');
-    const Revoked = contract.events.find((e) => e.name === 'Revoked');
 
     return (store) => {
-      let certifiers = [];
-      let addresses = [];
-      let filterChanged = false;
-      let filter = null;
-      let badgeRegFilter = null;
-      let fetchCertifiersPromise = null;
-
-      const updateFilter = updatableFilter(api, (filterId) => {
-        filterChanged = true;
-        filter = filterId;
-      });
-
-      const badgeRegUpdateFilter = updatableFilter(api, (filterId) => {
-        filterChanged = true;
-        badgeRegFilter = filterId;
-      });
-
-      badgeReg
-        .getContract()
-        .then((badgeRegContract) => {
-          return badgeRegUpdateFilter(badgeRegContract.address, [ [
-            badgeRegContract.instance.Registered.signature,
-            badgeRegContract.instance.Unregistered.signature,
-            badgeRegContract.instance.MetaChanged.signature,
-            badgeRegContract.instance.AddressChanged.signature
-          ] ]);
-        })
-        .then(() => {
-          shortFetchChanges();
-
-          api.subscribe('eth_blockNumber', (err) => {
-            if (err) {
-              return;
-            }
-
-            fetchChanges();
-          });
-        });
-
-      function onLogs (logs) {
-        logs = contract.parseEventLogs(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') {
-            store.dispatch(removeCertification(log.params.who.value, id));
-          } else {
-            store.dispatch(addCertification(log.params.who.value, id, name, title, icon));
-          }
-        });
-      }
-
-      function onBadgeRegLogs (logs) {
-        return badgeReg.getContract()
-          .then((badgeRegContract) => {
-            logs = badgeRegContract.parseEventLogs(logs);
-
-            const ids = logs.map((log) => log.params && log.params.id.value.toNumber());
-
-            return fetchCertifiers(uniq(ids));
-          });
-      }
-
-      function _fetchChanges () {
-        const method = filterChanged
-          ? 'getFilterLogs'
-          : 'getFilterChanges';
-
-        filterChanged = false;
-
-        api.eth[method](badgeRegFilter)
-          .then(onBadgeRegLogs)
-          .catch((err) => {
-            console.error('Failed to fetch badge reg events:', err);
-          })
-          .then(() => api.eth[method](filter))
-          .then(onLogs)
-          .catch((err) => {
-            console.error('Failed to fetch new certifier events:', err);
-          });
-      }
-
-      const shortFetchChanges = debounce(_fetchChanges, 0.5 * 1000, { leading: true });
-      const fetchChanges = debounce(shortFetchChanges, 10 * 1000, { leading: true });
-
-      function fetchConfirmedEvents () {
-        return updateFilter(certifiers.map((c) => c.address), [
-          [ Confirmed.signature, Revoked.signature ],
-          addresses
-        ]).then(() => shortFetchChanges());
-      }
-
-      function fetchCertifiers (ids = []) {
-        if (fetchCertifiersPromise) {
-          return fetchCertifiersPromise;
-        }
-
-        let fetchEvents = false;
-
-        const idsPromise = (certifiers.length === 0)
-          ? badgeReg.certifierCount().then((count) => {
-            return range(count);
-          })
-          : Promise.resolve(ids);
-
-        fetchCertifiersPromise = idsPromise
-          .then((ids) => {
-            const promises = ids.map((id) => {
-              return badgeReg.fetchCertifier(id)
-                .then((cert) => {
-                  if (!certifiers.some((c) => c.id === cert.id)) {
-                    certifiers = certifiers.concat(cert);
-                    fetchEvents = true;
-                  }
-                })
-                .catch((err) => {
-                  if (/does not exist/.test(err.toString())) {
-                    return log.info(err.toString());
-                  }
-
-                  log.warn(`Could not fetch certifier ${id}:`, err);
-                });
-            });
-
-            return Promise
-              .all(promises)
-              .then(() => {
-                fetchCertifiersPromise = null;
-
-                if (fetchEvents) {
-                  return fetchConfirmedEvents();
-                }
-              });
-          });
-
-        return fetchCertifiersPromise;
-      }
+      Monitor.init(api, store);
 
       return (next) => (action) => {
         switch (action.type) {
-          case 'fetchCertifiers':
-            fetchConfirmedEvents();
-
-            break;
-          case 'fetchCertifications':
-            const { address } = action;
-
-            if (!addresses.includes(address)) {
-              addresses = addresses.concat(address);
-              fetchConfirmedEvents();
-            }
-
-            break;
           case 'setVisibleAccounts':
-            const _addresses = action.addresses || [];
+            const { addresses = [] } = action;
 
-            addresses = uniq(addresses.concat(_addresses));
-            fetchConfirmedEvents();
+            Monitor.get().fetchAccounts(addresses);
             next(action);
 
             break;

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

@@ -20,24 +20,32 @@ export default (state = initialState, action) => {
   if (action.type === 'addCertification') {
     const { address, id, name, icon, title } = action;
     const certifications = state[address] || [];
+    const certifierIndex = certifications.findIndex((c) => c.id === id);
+    const data = { id, name, icon, title };
+    const nextCertifications = certifications.slice();
 
-    if (certifications.some((c) => c.id === id)) {
-      return state;
+    if (certifierIndex >= 0) {
+      nextCertifications[certifierIndex] = data;
+    } else {
+      nextCertifications.push(data);
     }
 
-    const newCertifications = certifications.concat({
-      id, name, icon, title
-    });
-
-    return { ...state, [address]: newCertifications };
+    return { ...state, [address]: nextCertifications };
   }
 
   if (action.type === 'removeCertification') {
     const { address, id } = action;
     const certifications = state[address] || [];
+    const certifierIndex = certifications.findIndex((c) => c.id === id);
 
-    const newCertifications = certifications.filter((c) => c.id !== id);
+    // Don't remove if not there
+    if (certifierIndex < 0) {
+      return state;
+    }
 
+    const newCertifications = certifications.slice();
+
+    newCertifications.splice(certifierIndex, 1);
     return { ...state, [address]: newCertifications };
   }
 

js/src/redux/providers/requestsActions.js

@@ -54,13 +54,24 @@ export const watchRequest = (request) => (dispatch, getState) => {
   dispatch(trackRequest(requestId, request));
 };
 
-export const trackRequest = (requestId, { transactionHash = null } = {}) => (dispatch, getState) => {
+export const trackRequest = (requestId, { transactionHash = null, retries = 0 } = {}) => (dispatch, getState) => {
   const { api } = getState();
 
   trackRequestUtil(api, { requestId, transactionHash }, (error, _data = {}) => {
     const data = { ..._data };
 
     if (error) {
+      // Retry in 500ms if request not found, max 5 times
+      if (error.type === 'REQUEST_NOT_FOUND') {
+        if (retries > 5) {
+          return dispatch(deleteRequest(requestId));
+        }
+
+        return setTimeout(() => {
+          trackRequest(requestId, { transactionHash, retries: retries + 1 })(dispatch, getState);
+        }, 500);
+      }
+
       console.error(error);
       return dispatch(setRequest(requestId, { error }));
     }

js/src/redux/providers/tokensActions.js

@@ -115,9 +115,11 @@ export function loadTokensBasics (_tokenIndexes, options) {
     const prevTokensIndexes = Object.values(tokens).map((t) => t.index);
 
     // Only fetch tokens we don't have yet
-    const tokenIndexes = _tokenIndexes.filter((tokenIndex) => {
+    const tokenIndexes = _tokenIndexes
+      .filter((tokenIndex) => {
         return !prevTokensIndexes.includes(tokenIndex);
-    });
+      })
+      .sort();
 
     const count = tokenIndexes.length;
 
@@ -130,10 +132,15 @@ export function loadTokensBasics (_tokenIndexes, options) {
     return tokenReg.getContract()
       .then((tokenRegContract) => {
         let promise = Promise.resolve();
+        const first = tokenIndexes[0];
+        const last = tokenIndexes[tokenIndexes.length - 1];
+
+        for (let from = first; from <= last; from += limit) {
+          // No need to fetch `limit` elements
+          const lowerLimit = Math.min(limit, last - from + 1);
 
-        for (let start = 0; start < count; start += limit) {
           promise = promise
-            .then(() => fetchTokensBasics(api, tokenRegContract, start, limit))
+            .then(() => fetchTokensBasics(api, tokenRegContract, from, lowerLimit))
             .then((results) => {
               results
                 .forEach((token) => {

js/src/ui/AccountCard/accountCard.css

@@ -20,7 +20,6 @@
   background-color: rgba(0, 0, 0, 0.8);
   display: flex;
   flex-direction: row;
-  height: 100%;
   overflow: hidden;
   transition: transform ease-out 0.1s;
   transform: scale(1);

js/src/ui/Balance/balance.js

@@ -15,11 +15,12 @@
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
 import BigNumber from 'bignumber.js';
+import { pick } from 'lodash';
 import React, { Component, PropTypes } from 'react';
 import { FormattedMessage } from 'react-intl';
 import { connect } from 'react-redux';
 
-import TokenImage from '~/ui/TokenImage';
+import TokenValue from './tokenValue';
 
 import styles from './balance.css';
 
@@ -69,58 +70,19 @@ export class Balance extends Component {
         const balanceValue = balance[tokenId];
 
         const isEthToken = token.native;
-        const isFullToken = !showOnlyEth || isEthToken;
         const hasBalance = (balanceValue instanceof BigNumber) && balanceValue.gt(0);
 
         if (!hasBalance && !isEthToken) {
           return null;
         }
 
-        const bnf = new BigNumber(token.format || 1);
-        let decimals = 0;
-
-        if (bnf.gte(1000)) {
-          decimals = 3;
-        } else if (bnf.gte(100)) {
-          decimals = 2;
-        } else if (bnf.gte(10)) {
-          decimals = 1;
-        }
-
-        const rawValue = new BigNumber(balanceValue).div(bnf);
-        const value = rawValue.toFormat(decimals);
-
-        const classNames = [styles.balance];
-        let details = null;
-
-        if (isFullToken) {
-          classNames.push(styles.full);
-          details = [
-            <div
-              className={ styles.value }
-              key='value'
-            >
-              <span title={ `${rawValue.toFormat()} ${token.tag}` }>
-                { value }
-              </span>
-            </div>,
-            <div
-              className={ styles.tag }
-              key='tag'
-            >
-              { token.tag }
-            </div>
-          ];
-        }
-
         return (
-          <div
-            className={ classNames.join(' ') }
+          <TokenValue
             key={ tokenId }
-          >
-            <TokenImage token={ token } />
-            { details }
-          </div>
+            showOnlyEth={ showOnlyEth }
+            token={ token }
+            value={ balanceValue }
+          />
         );
       })
       .filter((node) => node);
@@ -155,11 +117,15 @@ export class Balance extends Component {
 }
 
 function mapStateToProps (state, props) {
-  const { balances, tokens } = state;
+  const { balances, tokens: allTokens } = state;
   const { address } = props;
+  const balance = balances[address] || props.balance || {};
+
+  const tokenIds = Object.keys(balance);
+  const tokens = pick(allTokens, tokenIds);
 
   return {
-    balance: balances[address] || props.balance || {},
+    balance,
     tokens
   };
 }

js/src/ui/Balance/balance.spec.js

@@ -84,13 +84,13 @@ describe('ui/Balance', () => {
   });
 
   it('renders all the non-zero balances', () => {
-    expect(component.find('Connect(TokenImage)')).to.have.length(2);
+    expect(component.find('Connect(TokenValue)')).to.have.length(2);
   });
 
   describe('render specifiers', () => {
     it('renders all the tokens with showZeroValues', () => {
       render({ showZeroValues: true });
-      expect(component.find('Connect(TokenImage)')).to.have.length(2);
+      expect(component.find('Connect(TokenValue)')).to.have.length(2);
     });
   });
 });

js/src/ui/Balance/tokenValue.js

@@ -0,0 +1,109 @@
+// Copyright 2015-2017 Parity Technologies (UK) Ltd.
+// This file is part of Parity.
+
+// Parity is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity.  If not, see <http://www.gnu.org/licenses/>.
+
+import BigNumber from 'bignumber.js';
+import React, { Component, PropTypes } from 'react';
+import { connect } from 'react-redux';
+import { bindActionCreators } from 'redux';
+
+import { fetchTokens } from '~/redux/providers/tokensActions';
+import TokenImage from '~/ui/TokenImage';
+
+import styles from './balance.css';
+
+class TokenValue extends Component {
+  static propTypes = {
+    token: PropTypes.object.isRequired,
+    value: PropTypes.object.isRequired,
+
+    // Redux injection
+    fetchTokens: PropTypes.func.isRequired,
+
+    showOnlyEth: PropTypes.bool
+  };
+
+  componentWillMount () {
+    const { token } = this.props;
+
+    if (token.native) {
+      return;
+    }
+
+    if (!token.fetched) {
+      if (!Number.isFinite(token.index)) {
+        return console.warn('no token index', token);
+      }
+
+      this.props.fetchTokens([ token.index ]);
+    }
+  }
+
+  render () {
+    const { token, showOnlyEth, value } = this.props;
+
+    const isEthToken = token.native;
+    const isFullToken = !showOnlyEth || isEthToken;
+
+    const bnf = new BigNumber(token.format || 1);
+    let decimals = 0;
+
+    if (bnf.gte(1000)) {
+      decimals = 3;
+    } else if (bnf.gte(100)) {
+      decimals = 2;
+    } else if (bnf.gte(10)) {
+      decimals = 1;
+    }
+
+    const rawValue = new BigNumber(value).div(bnf);
+    const classNames = [styles.balance];
+
+    if (isFullToken) {
+      classNames.push(styles.full);
+    }
+
+    return (
+      <div className={ classNames.join(' ') }>
+        <TokenImage token={ token } />
+        {
+          isFullToken
+          ? [
+            <div className={ styles.value } key='value'>
+              <span title={ `${rawValue.toFormat()} ${token.tag}` }>
+                { rawValue.toFormat(decimals) }
+              </span>
+            </div>,
+            <div className={ styles.tag } key='tag'>
+              { token.tag }
+            </div>
+          ]
+          : null
+        }
+      </div>
+    );
+  }
+}
+
+function mapDispatchToProps (dispatch) {
+  return bindActionCreators({
+    fetchTokens
+  }, dispatch);
+}
+
+export default connect(
+  null,
+  mapDispatchToProps
+)(TokenValue);

js/src/ui/MethodDecoding/tokenValue.js

@@ -18,7 +18,7 @@ import React, { Component, PropTypes } from 'react';
 import { connect } from 'react-redux';
 import { bindActionCreators } from 'redux';
 
-import { fetchTokens } from '../../redux/providers/tokensActions';
+import { fetchTokens } from '~/redux/providers/tokensActions';
 import styles from './methodDecoding.css';
 
 class TokenValue extends Component {

js/src/views/Account/account.js

@@ -26,7 +26,6 @@ import HardwareStore from '~/mobx/hardwareStore';
 import ExportStore from '~/modals/ExportAccount/exportStore';
 import { DeleteAccount, EditMeta, Faucet, PasswordManager, Shapeshift, Transfer, Verification } from '~/modals';
 import { setVisibleAccounts } from '~/redux/providers/personalActions';
-import { fetchCertifiers, fetchCertifications } from '~/redux/providers/certifications/actions';
 import { Actionbar, Button, ConfirmDialog, Input, Page, Portal } from '~/ui';
 import { DeleteIcon, DialIcon, EditIcon, LockedIcon, SendIcon, VerifyIcon, FileDownloadIcon } from '~/ui/Icons';
 
@@ -45,8 +44,6 @@ class Account extends Component {
 
   static propTypes = {
     accounts: PropTypes.object.isRequired,
-    fetchCertifiers: PropTypes.func.isRequired,
-    fetchCertifications: PropTypes.func.isRequired,
     setVisibleAccounts: PropTypes.func.isRequired,
 
     account: PropTypes.object,
@@ -67,7 +64,6 @@ class Account extends Component {
   }
 
   componentDidMount () {
-    this.props.fetchCertifiers();
     this.setVisibleAccounts();
   }
 
@@ -90,11 +86,10 @@ class Account extends Component {
   }
 
   setVisibleAccounts (props = this.props) {
-    const { params, setVisibleAccounts, fetchCertifications } = props;
+    const { params, setVisibleAccounts } = props;
     const addresses = [params.address];
 
     setVisibleAccounts(addresses);
-    fetchCertifications(params.address);
   }
 
   render () {
@@ -524,8 +519,6 @@ function mapStateToProps (state, props) {
 
 function mapDispatchToProps (dispatch) {
   return bindActionCreators({
-    fetchCertifiers,
-    fetchCertifications,
     newError,
     setVisibleAccounts
   }, dispatch);

js/src/views/Accounts/List/list.js

@@ -17,10 +17,8 @@
 import { pick } from 'lodash';
 import React, { Component, PropTypes } from 'react';
 import { connect } from 'react-redux';
-import { bindActionCreators } from 'redux';
 
 import { Container, SectionList } from '~/ui';
-import { fetchCertifiers, fetchCertifications } from '~/redux/providers/certifications/actions';
 import { ETH_TOKEN } from '~/util/tokens';
 
 import Summary from '../Summary';
@@ -38,20 +36,9 @@ class List extends Component {
     orderFallback: PropTypes.string,
     search: PropTypes.array,
 
-    fetchCertifiers: PropTypes.func.isRequired,
-    fetchCertifications: PropTypes.func.isRequired,
     handleAddSearchToken: PropTypes.func
   };
 
-  componentWillMount () {
-    const { accounts, fetchCertifiers, fetchCertifications } = this.props;
-
-    fetchCertifiers();
-    for (let address in accounts) {
-      fetchCertifications(address);
-    }
-  }
-
   render () {
     const { accounts, disabled, empty } = this.props;
 
@@ -264,14 +251,7 @@ function mapStateToProps (state, props) {
   return { balances, certifications };
 }
 
-function mapDispatchToProps (dispatch) {
-  return bindActionCreators({
-    fetchCertifiers,
-    fetchCertifications
-  }, dispatch);
-}
-
 export default connect(
   mapStateToProps,
-  mapDispatchToProps
+  null
 )(List);