Implement logging in using MetaMask extension (#2408)

We check Web3 every 0.1s to check for currently selected account. This is ugly and MetaMask developers admit that, but it's the only way they can recommend. Login button always redirects to metamask.io website, but if the MetaMask is detected, it's onclick is overridden to launch MetaMask's Privacy Mode unlock dialog. When an account is detected, it is sent to websocket and used for rendering top panel during further staking information updates. Putting account into session is not implemented, as it _might_ cause privacy issues. In the meanwhile, we'll try to think of more clever way for preventing login button blinking during page load. Note: npm cache is invalidated in CI to work around issue of websocket package breaking npm install due to .git directory being present. Co-Authored-By: Anatoly Nikiforov <anatolyniky@gmail.com> Co-Authored-By: Kirill Andreev <hindmost.one@gmail.com>
5 years ago · cbb79679e0
parent c64f77fe94
commit cbb79679e0
11 changed files with 572 additions and 38 deletions
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@ -41,9 +41,9 @@ jobs:

      - restore_cache:
          keys:
-            - v7-npm-install-{{ .Branch }}-{{ checksum "apps/block_scout_web/assets/package-lock.json" }}
-            - v7-npm-install-{{ .Branch }}
-            - v7-npm-install
+            - v8-npm-install-{{ .Branch }}-{{ checksum "apps/block_scout_web/assets/package-lock.json" }}
+            - v8-npm-install-{{ .Branch }}
+            - v8-npm-install

      - run:
          command: npm install
@ -68,13 +68,13 @@ jobs:
          working_directory: "apps/block_scout_web/assets"

      - save_cache:
-          key: v7-npm-install-{{ .Branch }}-{{ checksum "apps/block_scout_web/assets/package-lock.json" }}
+          key: v8-npm-install-{{ .Branch }}-{{ checksum "apps/block_scout_web/assets/package-lock.json" }}
          paths: "apps/block_scout_web/assets/node_modules"
      - save_cache:
-          key: v7-npm-install-{{ .Branch }}
+          key: v8-npm-install-{{ .Branch }}
          paths: "apps/block_scout_web/assets/node_modules"
      - save_cache:
-          key: v7-npm-install
+          key: v8-npm-install
          paths: "apps/block_scout_web/assets/node_modules"

      - run: mix compile
--- a/apps/block_scout_web/assets/css/components/stakes/_stakes.scss
+++ b/apps/block_scout_web/assets/css/components/stakes/_stakes.scss
@ -67,9 +67,12 @@ $stakes-stats-item-border-color: #fff !default;
 }

 .stakes-top-stats-login {
-  color: $secondary;
-  cursor: pointer;
-  margin-right: 8px;
+  &, &:hover {
+    color: $secondary;
+    text-decoration: none;
+    cursor: pointer;
+    margin-right: 8px;
+  }
 }

 .stakes-address-container {
--- a/apps/block_scout_web/assets/js/pages/stakes.js
+++ b/apps/block_scout_web/assets/js/pages/stakes.js
@ -5,9 +5,12 @@ import _ from 'lodash'
 import { subscribeChannel } from '../socket'
 import { connectElements } from '../lib/redux_helpers.js'
 import { createAsyncLoadStore } from '../lib/async_listing_load'
+import Web3 from 'web3'

 export const initialState = {
-  channel: null
+  channel: null,
+  web3: null,
+  account: null
 }

 export function reducer (state = initialState, action) {
@ -19,6 +22,12 @@ export function reducer (state = initialState, action) {
    case 'CHANNEL_CONNECTED': {
      return Object.assign({}, state, { channel: action.channel })
    }
+    case 'WEB3_DETECTED': {
+      return Object.assign({}, state, { web3: action.web3 })
+    }
+    case 'ACCOUNT_UPDATED': {
+      return Object.assign({}, state, { account: action.account })
+    }
    default:
      return state
  }
@ -35,8 +44,47 @@ if ($stakesPage.length) {
  const channel = subscribeChannel('stakes:staking_update')
  channel.on('staking_update', msg => onStakingUpdate(msg, store))
  store.dispatch({ type: 'CHANNEL_CONNECTED', channel })
+
+  initializeWeb3(store)
 }

 function onStakingUpdate (msg, store) {
  $('[data-selector="stakes-top"]').html(msg.top_html)
+
+  if (store.getState().web3) {
+    $('[data-selector="login-button"]').on('click', loginByMetamask)
+  }
+}
+
+function initializeWeb3 (store) {
+  if (window.ethereum) {
+    const web3 = new Web3(window.ethereum)
+    store.dispatch({ type: 'WEB3_DETECTED', web3 })
+
+    setInterval(async function () {
+      const accounts = await web3.eth.getAccounts()
+      const account = accounts[0] ? accounts[0].toLowerCase() : null
+
+      if (account !== store.getState().account) {
+        setAccount(account, store)
+      }
+    }, 100)
+  }
+}
+
+function setAccount (account, store) {
+  store.dispatch({ type: 'ACCOUNT_UPDATED', account })
+  store.getState().channel.push('set_account', account)
+}
+
+async function loginByMetamask (event) {
+  event.stopPropagation()
+  event.preventDefault()
+
+  try {
+    await window.ethereum.enable()
+  } catch (e) {
+    console.log(e)
+    console.error('User denied account access')
+  }
 }
--- a/apps/block_scout_web/assets/package-lock.json
+++ b/apps/block_scout_web/assets/package-lock.json
@ -13403,6 +13403,29 @@
        "xhr": "^2.3.3"
      }
    },
+    "serve-static": {
+      "version": "1.14.1",
+      "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.14.1.tgz",
+      "integrity": "sha512-JMrvUwE54emCYWlTI+hGrGv5I8dEwmco/00EvkzIIsR7MqrHonbD9pO2MOfFnpFntl7ecpZs+3mW+XbQZu9QCg==",
+      "requires": {
+        "encodeurl": "~1.0.2",
+        "escape-html": "~1.0.3",
+        "parseurl": "~1.3.3",
+        "send": "0.17.1"
+      }
+    },
+    "servify": {
+      "version": "0.1.12",
+      "resolved": "https://registry.npmjs.org/servify/-/servify-0.1.12.tgz",
+      "integrity": "sha512-/xE6GvsKKqyo1BAY+KxOWXcLpPsUUyji7Qg3bVD7hh1eRze5bR1uYiuDA/k3Gof1s9BTzQZEJK8sNcNGFIzeWw==",
+      "requires": {
+        "body-parser": "^1.16.0",
+        "cors": "^2.8.1",
+        "express": "^4.14.0",
+        "request": "^2.79.0",
+        "xhr": "^2.3.3"
+      }
+    },
    "set-blocking": {
      "version": "2.0.0",
      "resolved": "https://registry.npmjs.org/set-blocking/-/set-blocking-2.0.0.tgz",
@ -13451,6 +13474,21 @@
        "safe-buffer": "^5.0.1"
      }
    },
+    "sha3": {
+      "version": "1.2.3",
+      "resolved": "https://registry.npmjs.org/sha3/-/sha3-1.2.3.tgz",
+      "integrity": "sha512-sOWDZi8cDBRkLfWOw18wvJyNblXDHzwMGnRWut8zNNeIeLnmMRO17bjpLc7OzMuj1ASUgx2IyohzUCAl+Kx5vA==",
+      "requires": {
+        "nan": "2.13.2"
+      },
+      "dependencies": {
+        "nan": {
+          "version": "2.13.2",
+          "resolved": "https://registry.npmjs.org/nan/-/nan-2.13.2.tgz",
+          "integrity": "sha512-TghvYc72wlMGMVMluVo9WRJc0mB8KxxF/gZ4YYFy7V2ZQX9l7rgbPg7vjS9mt6U5HXODVFVI2bOduCzwOMv/lw=="
+        }
+      }
+    },
    "shallow-clone": {
      "version": "3.0.1",
      "resolved": "https://registry.npmjs.org/shallow-clone/-/shallow-clone-3.0.1.tgz",
@ -14543,8 +14581,7 @@
    "through": {
      "version": "2.3.8",
      "resolved": "https://registry.npmjs.org/through/-/through-2.3.8.tgz",
-      "integrity": "sha1-DdTJ/6q8NXlgsbckEV1+Doai4fU=",
-      "dev": true
+      "integrity": "sha1-DdTJ/6q8NXlgsbckEV1+Doai4fU="
    },
    "through2": {
      "version": "2.0.5",
@ -14602,6 +14639,11 @@
      "integrity": "sha1-fSKbH8xjfkZsoIEYCDanqr/4P0M=",
      "dev": true
    },
+    "to-buffer": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/to-buffer/-/to-buffer-1.1.1.tgz",
+      "integrity": "sha512-lx9B5iv7msuFYE3dytT+KE5tap+rNYw+K4jVkb9R/asAb+pbBSM17jtunHplhBe6RRJdZx3Pn2Jph24O32mOVg=="
+    },
    "to-fast-properties": {
      "version": "2.0.0",
      "resolved": "https://registry.npmjs.org/to-fast-properties/-/to-fast-properties-2.0.0.tgz",
@ -14724,6 +14766,11 @@
      "resolved": "https://registry.npmjs.org/type/-/type-1.2.0.tgz",
      "integrity": "sha512-+5nt5AAniqsCnu2cEQQdpzCAh33kVx8n0VoFidKpB1dVVLAN/F+bgVOqOJqOnEnrhp222clB5p3vUlD+1QAnfg=="
    },
+    "type": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/type/-/type-1.0.3.tgz",
+      "integrity": "sha512-51IMtNfVcee8+9GJvj0spSuFcZHe9vSib6Xtgsny1Km9ugyz2mbS08I3rsUIRYgJohFRFU1160sgRodYz378Hg=="
+    },
    "type-check": {
      "version": "0.3.2",
      "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.3.2.tgz",
@ -15467,6 +15514,286 @@
        }
      }
    },
+    "web3": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/web3/-/web3-1.2.1.tgz",
+      "integrity": "sha512-nNMzeCK0agb5i/oTWNdQ1aGtwYfXzHottFP2Dz0oGIzavPMGSKyVlr8ibVb1yK5sJBjrWVnTdGaOC2zKDFuFRw==",
+      "requires": {
+        "web3-bzz": "1.2.1",
+        "web3-core": "1.2.1",
+        "web3-eth": "1.2.1",
+        "web3-eth-personal": "1.2.1",
+        "web3-net": "1.2.1",
+        "web3-shh": "1.2.1",
+        "web3-utils": "1.2.1"
+      }
+    },
+    "web3-bzz": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/web3-bzz/-/web3-bzz-1.2.1.tgz",
+      "integrity": "sha512-LdOO44TuYbGIPfL4ilkuS89GQovxUpmLz6C1UC7VYVVRILeZS740FVB3j9V4P4FHUk1RenaDfKhcntqgVCHtjw==",
+      "requires": {
+        "got": "9.6.0",
+        "swarm-js": "0.1.39",
+        "underscore": "1.9.1"
+      }
+    },
+    "web3-core": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/web3-core/-/web3-core-1.2.1.tgz",
+      "integrity": "sha512-5ODwIqgl8oIg/0+Ai4jsLxkKFWJYE0uLuE1yUKHNVCL4zL6n3rFjRMpKPokd6id6nJCNgeA64KdWQ4XfpnjdMg==",
+      "requires": {
+        "web3-core-helpers": "1.2.1",
+        "web3-core-method": "1.2.1",
+        "web3-core-requestmanager": "1.2.1",
+        "web3-utils": "1.2.1"
+      }
+    },
+    "web3-core-helpers": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/web3-core-helpers/-/web3-core-helpers-1.2.1.tgz",
+      "integrity": "sha512-Gx3sTEajD5r96bJgfuW377PZVFmXIH4TdqDhgGwd2lZQCcMi+DA4TgxJNJGxn0R3aUVzyyE76j4LBrh412mXrw==",
+      "requires": {
+        "underscore": "1.9.1",
+        "web3-eth-iban": "1.2.1",
+        "web3-utils": "1.2.1"
+      }
+    },
+    "web3-core-method": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/web3-core-method/-/web3-core-method-1.2.1.tgz",
+      "integrity": "sha512-Ghg2WS23qi6Xj8Od3VCzaImLHseEA7/usvnOItluiIc5cKs00WYWsNy2YRStzU9a2+z8lwQywPYp0nTzR/QXdQ==",
+      "requires": {
+        "underscore": "1.9.1",
+        "web3-core-helpers": "1.2.1",
+        "web3-core-promievent": "1.2.1",
+        "web3-core-subscriptions": "1.2.1",
+        "web3-utils": "1.2.1"
+      }
+    },
+    "web3-core-promievent": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/web3-core-promievent/-/web3-core-promievent-1.2.1.tgz",
+      "integrity": "sha512-IVUqgpIKoeOYblwpex4Hye6npM0aMR+kU49VP06secPeN0rHMyhGF0ZGveWBrGvf8WDPI7jhqPBFIC6Jf3Q3zw==",
+      "requires": {
+        "any-promise": "1.3.0",
+        "eventemitter3": "3.1.2"
+      }
+    },
+    "web3-core-requestmanager": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/web3-core-requestmanager/-/web3-core-requestmanager-1.2.1.tgz",
+      "integrity": "sha512-xfknTC69RfYmLKC+83Jz73IC3/sS2ZLhGtX33D4Q5nQ8yc39ElyAolxr9sJQS8kihOcM6u4J+8gyGMqsLcpIBg==",
+      "requires": {
+        "underscore": "1.9.1",
+        "web3-core-helpers": "1.2.1",
+        "web3-providers-http": "1.2.1",
+        "web3-providers-ipc": "1.2.1",
+        "web3-providers-ws": "1.2.1"
+      }
+    },
+    "web3-core-subscriptions": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/web3-core-subscriptions/-/web3-core-subscriptions-1.2.1.tgz",
+      "integrity": "sha512-nmOwe3NsB8V8UFsY1r+sW6KjdOS68h8nuh7NzlWxBQT/19QSUGiERRTaZXWu5BYvo1EoZRMxCKyCQpSSXLc08g==",
+      "requires": {
+        "eventemitter3": "3.1.2",
+        "underscore": "1.9.1",
+        "web3-core-helpers": "1.2.1"
+      }
+    },
+    "web3-eth": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/web3-eth/-/web3-eth-1.2.1.tgz",
+      "integrity": "sha512-/2xly4Yry5FW1i+uygPjhfvgUP/MS/Dk+PDqmzp5M88tS86A+j8BzKc23GrlA8sgGs0645cpZK/999LpEF5UdA==",
+      "requires": {
+        "underscore": "1.9.1",
+        "web3-core": "1.2.1",
+        "web3-core-helpers": "1.2.1",
+        "web3-core-method": "1.2.1",
+        "web3-core-subscriptions": "1.2.1",
+        "web3-eth-abi": "1.2.1",
+        "web3-eth-accounts": "1.2.1",
+        "web3-eth-contract": "1.2.1",
+        "web3-eth-ens": "1.2.1",
+        "web3-eth-iban": "1.2.1",
+        "web3-eth-personal": "1.2.1",
+        "web3-net": "1.2.1",
+        "web3-utils": "1.2.1"
+      }
+    },
+    "web3-eth-abi": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/web3-eth-abi/-/web3-eth-abi-1.2.1.tgz",
+      "integrity": "sha512-jI/KhU2a/DQPZXHjo2GW0myEljzfiKOn+h1qxK1+Y9OQfTcBMxrQJyH5AP89O6l6NZ1QvNdq99ThAxBFoy5L+g==",
+      "requires": {
+        "ethers": "4.0.0-beta.3",
+        "underscore": "1.9.1",
+        "web3-utils": "1.2.1"
+      }
+    },
+    "web3-eth-accounts": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/web3-eth-accounts/-/web3-eth-accounts-1.2.1.tgz",
+      "integrity": "sha512-26I4qq42STQ8IeKUyur3MdQ1NzrzCqPsmzqpux0j6X/XBD7EjZ+Cs0lhGNkSKH5dI3V8CJasnQ5T1mNKeWB7nQ==",
+      "requires": {
+        "any-promise": "1.3.0",
+        "crypto-browserify": "3.12.0",
+        "eth-lib": "0.2.7",
+        "scryptsy": "2.1.0",
+        "semver": "6.2.0",
+        "underscore": "1.9.1",
+        "uuid": "3.3.2",
+        "web3-core": "1.2.1",
+        "web3-core-helpers": "1.2.1",
+        "web3-core-method": "1.2.1",
+        "web3-utils": "1.2.1"
+      },
+      "dependencies": {
+        "eth-lib": {
+          "version": "0.2.7",
+          "resolved": "https://registry.npmjs.org/eth-lib/-/eth-lib-0.2.7.tgz",
+          "integrity": "sha1-L5Pxex4jrsN1nNSj/iDBKGo/wco=",
+          "requires": {
+            "bn.js": "^4.11.6",
+            "elliptic": "^6.4.0",
+            "xhr-request-promise": "^0.1.2"
+          }
+        },
+        "semver": {
+          "version": "6.2.0",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-6.2.0.tgz",
+          "integrity": "sha512-jdFC1VdUGT/2Scgbimf7FSx9iJLXoqfglSF+gJeuNWVpiE37OIbc1jywR/GJyFdz3mnkz2/id0L0J/cr0izR5A=="
+        }
+      }
+    },
+    "web3-eth-contract": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/web3-eth-contract/-/web3-eth-contract-1.2.1.tgz",
+      "integrity": "sha512-kYFESbQ3boC9bl2rYVghj7O8UKMiuKaiMkxvRH5cEDHil8V7MGEGZNH0slSdoyeftZVlaWSMqkRP/chfnKND0g==",
+      "requires": {
+        "underscore": "1.9.1",
+        "web3-core": "1.2.1",
+        "web3-core-helpers": "1.2.1",
+        "web3-core-method": "1.2.1",
+        "web3-core-promievent": "1.2.1",
+        "web3-core-subscriptions": "1.2.1",
+        "web3-eth-abi": "1.2.1",
+        "web3-utils": "1.2.1"
+      }
+    },
+    "web3-eth-ens": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/web3-eth-ens/-/web3-eth-ens-1.2.1.tgz",
+      "integrity": "sha512-lhP1kFhqZr2nnbu3CGIFFrAnNxk2veXpOXBY48Tub37RtobDyHijHgrj+xTh+mFiPokyrapVjpFsbGa+Xzye4Q==",
+      "requires": {
+        "eth-ens-namehash": "2.0.8",
+        "underscore": "1.9.1",
+        "web3-core": "1.2.1",
+        "web3-core-helpers": "1.2.1",
+        "web3-core-promievent": "1.2.1",
+        "web3-eth-abi": "1.2.1",
+        "web3-eth-contract": "1.2.1",
+        "web3-utils": "1.2.1"
+      }
+    },
+    "web3-eth-iban": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/web3-eth-iban/-/web3-eth-iban-1.2.1.tgz",
+      "integrity": "sha512-9gkr4QPl1jCU+wkgmZ8EwODVO3ovVj6d6JKMos52ggdT2YCmlfvFVF6wlGLwi0VvNa/p+0BjJzaqxnnG/JewjQ==",
+      "requires": {
+        "bn.js": "4.11.8",
+        "web3-utils": "1.2.1"
+      }
+    },
+    "web3-eth-personal": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/web3-eth-personal/-/web3-eth-personal-1.2.1.tgz",
+      "integrity": "sha512-RNDVSiaSoY4aIp8+Hc7z+X72H7lMb3fmAChuSBADoEc7DsJrY/d0R5qQDK9g9t2BO8oxgLrLNyBP/9ub2Hc6Bg==",
+      "requires": {
+        "web3-core": "1.2.1",
+        "web3-core-helpers": "1.2.1",
+        "web3-core-method": "1.2.1",
+        "web3-net": "1.2.1",
+        "web3-utils": "1.2.1"
+      }
+    },
+    "web3-net": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/web3-net/-/web3-net-1.2.1.tgz",
+      "integrity": "sha512-Yt1Bs7WgnLESPe0rri/ZoPWzSy55ovioaP35w1KZydrNtQ5Yq4WcrAdhBzcOW7vAkIwrsLQsvA+hrOCy7mNauw==",
+      "requires": {
+        "web3-core": "1.2.1",
+        "web3-core-method": "1.2.1",
+        "web3-utils": "1.2.1"
+      }
+    },
+    "web3-providers-http": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/web3-providers-http/-/web3-providers-http-1.2.1.tgz",
+      "integrity": "sha512-BDtVUVolT9b3CAzeGVA/np1hhn7RPUZ6YYGB/sYky+GjeO311Yoq8SRDUSezU92x8yImSC2B+SMReGhd1zL+bQ==",
+      "requires": {
+        "web3-core-helpers": "1.2.1",
+        "xhr2-cookies": "1.1.0"
+      }
+    },
+    "web3-providers-ipc": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/web3-providers-ipc/-/web3-providers-ipc-1.2.1.tgz",
+      "integrity": "sha512-oPEuOCwxVx8L4CPD0TUdnlOUZwGBSRKScCz/Ws2YHdr9Ium+whm+0NLmOZjkjQp5wovQbyBzNa6zJz1noFRvFA==",
+      "requires": {
+        "oboe": "2.1.4",
+        "underscore": "1.9.1",
+        "web3-core-helpers": "1.2.1"
+      }
+    },
+    "web3-providers-ws": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/web3-providers-ws/-/web3-providers-ws-1.2.1.tgz",
+      "integrity": "sha512-oqsQXzu+ejJACVHy864WwIyw+oB21nw/pI65/sD95Zi98+/HQzFfNcIFneF1NC4bVF3VNX4YHTNq2I2o97LAiA==",
+      "requires": {
+        "underscore": "1.9.1",
+        "web3-core-helpers": "1.2.1",
+        "websocket": "github:web3-js/WebSocket-Node#polyfill/globalThis"
+      }
+    },
+    "web3-shh": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/web3-shh/-/web3-shh-1.2.1.tgz",
+      "integrity": "sha512-/3Cl04nza5kuFn25bV3FJWa0s3Vafr5BlT933h26xovQ6HIIz61LmvNQlvX1AhFL+SNJOTcQmK1SM59vcyC8bA==",
+      "requires": {
+        "web3-core": "1.2.1",
+        "web3-core-method": "1.2.1",
+        "web3-core-subscriptions": "1.2.1",
+        "web3-net": "1.2.1"
+      }
+    },
+    "web3-utils": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/web3-utils/-/web3-utils-1.2.1.tgz",
+      "integrity": "sha512-Mrcn3l58L+yCKz3zBryM6JZpNruWuT0OCbag8w+reeNROSGVlXzUQkU+gtAwc9JCZ7tKUyg67+2YUGqUjVcyBA==",
+      "requires": {
+        "bn.js": "4.11.8",
+        "eth-lib": "0.2.7",
+        "ethjs-unit": "0.1.6",
+        "number-to-bn": "1.7.0",
+        "randomhex": "0.1.5",
+        "underscore": "1.9.1",
+        "utf8": "3.0.0"
+      },
+      "dependencies": {
+        "eth-lib": {
+          "version": "0.2.7",
+          "resolved": "https://registry.npmjs.org/eth-lib/-/eth-lib-0.2.7.tgz",
+          "integrity": "sha1-L5Pxex4jrsN1nNSj/iDBKGo/wco=",
+          "requires": {
+            "bn.js": "^4.11.6",
+            "elliptic": "^6.4.0",
+            "xhr-request-promise": "^0.1.2"
+          }
+        }
+      }
+    },
    "webidl-conversions": {
      "version": "4.0.2",
      "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-4.0.2.tgz",
@ -15936,6 +16263,24 @@
        }
      }
    },
+    "websocket": {
+      "version": "github:web3-js/WebSocket-Node#905deb4812572b344f5801f8c9ce8bb02799d82e",
+      "from": "github:web3-js/WebSocket-Node#polyfill/globalThis",
+      "requires": {
+        "debug": "^2.2.0",
+        "es5-ext": "^0.10.50",
+        "nan": "^2.14.0",
+        "typedarray-to-buffer": "^3.1.5",
+        "yaeti": "^0.0.6"
+      },
+      "dependencies": {
+        "nan": {
+          "version": "2.14.0",
+          "resolved": "https://registry.npmjs.org/nan/-/nan-2.14.0.tgz",
+          "integrity": "sha512-INOFj37C7k3AfaNTtX8RhsTw7qRy7eLET14cROi9+5HAVbbHuIWUHEauBv5qT4Av2tWasiTY1Jw6puUNqRJXQg=="
+        }
+      }
+    },
    "whatwg-encoding": {
      "version": "1.0.5",
      "resolved": "https://registry.npmjs.org/whatwg-encoding/-/whatwg-encoding-1.0.5.tgz",
@ -16160,6 +16505,59 @@
        "cookiejar": "^2.1.1"
      }
    },
+    "xhr": {
+      "version": "2.5.0",
+      "resolved": "https://registry.npmjs.org/xhr/-/xhr-2.5.0.tgz",
+      "integrity": "sha512-4nlO/14t3BNUZRXIXfXe+3N6w3s1KoxcJUUURctd64BLRe67E4gRwp4PjywtDY72fXpZ1y6Ch0VZQRY/gMPzzQ==",
+      "requires": {
+        "global": "~4.3.0",
+        "is-function": "^1.0.1",
+        "parse-headers": "^2.0.0",
+        "xtend": "^4.0.0"
+      }
+    },
+    "xhr-request": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/xhr-request/-/xhr-request-1.1.0.tgz",
+      "integrity": "sha512-Y7qzEaR3FDtL3fP30k9wO/e+FBnBByZeybKOhASsGP30NIkRAAkKD/sCnLvgEfAIEC1rcmK7YG8f4oEnIrrWzA==",
+      "requires": {
+        "buffer-to-arraybuffer": "^0.0.5",
+        "object-assign": "^4.1.1",
+        "query-string": "^5.0.1",
+        "simple-get": "^2.7.0",
+        "timed-out": "^4.0.1",
+        "url-set-query": "^1.0.0",
+        "xhr": "^2.0.4"
+      },
+      "dependencies": {
+        "query-string": {
+          "version": "5.1.1",
+          "resolved": "https://registry.npmjs.org/query-string/-/query-string-5.1.1.tgz",
+          "integrity": "sha512-gjWOsm2SoGlgLEdAGt7a6slVOk9mGiXmPFMqrEhLQ68rhQuBnpfs3+EmlvqKyxnCo9/PPlF+9MtY02S1aFg+Jw==",
+          "requires": {
+            "decode-uri-component": "^0.2.0",
+            "object-assign": "^4.1.0",
+            "strict-uri-encode": "^1.0.0"
+          }
+        }
+      }
+    },
+    "xhr-request-promise": {
+      "version": "0.1.2",
+      "resolved": "https://registry.npmjs.org/xhr-request-promise/-/xhr-request-promise-0.1.2.tgz",
+      "integrity": "sha1-NDxE0e53JrhkgGloLQ+EDIO0Jh0=",
+      "requires": {
+        "xhr-request": "^1.0.1"
+      }
+    },
+    "xhr2-cookies": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/xhr2-cookies/-/xhr2-cookies-1.1.0.tgz",
+      "integrity": "sha1-fXdEnQmZGX8VXLc7I99yUF7YnUg=",
+      "requires": {
+        "cookiejar": "^2.1.1"
+      }
+    },
    "xml-name-validator": {
      "version": "3.0.0",
      "resolved": "https://registry.npmjs.org/xml-name-validator/-/xml-name-validator-3.0.0.tgz",
@ -16272,6 +16670,15 @@
        "camelcase": "^5.0.0",
        "decamelize": "^1.2.0"
      }
+    },
+    "yauzl": {
+      "version": "2.10.0",
+      "resolved": "https://registry.npmjs.org/yauzl/-/yauzl-2.10.0.tgz",
+      "integrity": "sha1-x+sXyT4RLLEIb6bY5R+wZnt5pfk=",
+      "requires": {
+        "buffer-crc32": "~0.2.3",
+        "fd-slicer": "~1.1.0"
+      }
    }
  }
 }
--- a/apps/block_scout_web/lib/block_scout_web/channels/stakes_channel.ex
+++ b/apps/block_scout_web/lib/block_scout_web/channels/stakes_channel.ex
@ -12,9 +12,14 @@ defmodule BlockScoutWeb.StakesChannel do
    {:ok, %{}, socket}
  end

+  def handle_in("set_account", account, socket) do
+    socket = assign(socket, :account, account)
+    handle_out("staking_update", nil, socket)
+  end
+
  def handle_out("staking_update", _data, socket) do
    push(socket, "staking_update", %{
-      top_html: StakesController.render_top()
+      top_html: StakesController.render_top(socket)
    })

    {:noreply, socket}
--- a/apps/block_scout_web/lib/block_scout_web/controllers/stakes_controller.ex
+++ b/apps/block_scout_web/lib/block_scout_web/controllers/stakes_controller.ex
@ -15,16 +15,28 @@ defmodule BlockScoutWeb.StakesController do
    render_template(assigns.filter, conn, params)
  end

-  def render_top do
+  def render_top(conn) do
    epoch_number = ContractState.get(:epoch_number, 0)
    epoch_end_block = ContractState.get(:epoch_end_block, 0)
    block_number = BlockNumber.get_max()
+    token = ContractState.get(:token, %Token{})
+
+    account =
+      if account_address = conn.assigns[:account] do
+        %{
+          address: account_address,
+          balance: Chain.fetch_last_token_balance(account_address, token.contract_address_hash),
+          staked: Chain.get_total_staked(account_address),
+          pool: Chain.staking_pool(account_address)
+        }
+      end

    View.render_to_string(StakesView, "_stakes_top.html",
      epoch_number: epoch_number,
      epoch_end_in: epoch_end_block - block_number,
      block_number: block_number,
-      logged_in: false
+      account: account,
+      token: token
    )
  end

@ -83,7 +95,7 @@ defmodule BlockScoutWeb.StakesController do

  defp render_template(filter, conn, _) do
    render(conn, "index.html",
-      top: render_top(),
+      top: render_top(conn),
      pools_type: filter,
      current_path: current_path(conn),
      average_block_time: AverageBlockTime.average_block_time()
--- a/apps/block_scout_web/lib/block_scout_web/templates/stakes/_stakes_stats_item_account.html.eex
+++ b/apps/block_scout_web/lib/block_scout_web/templates/stakes/_stakes_stats_item_account.html.eex
@ -0,0 +1,26 @@
+<div class="stakes-top-stats-item stakes-top-stats-item-address"
+  data-user-address="<%= if @account, do: @account.address %>"
+>
+  <span class="stakes-top-stats-value">
+    <%= if @account do %>
+      <div data-placement="top" data-toggle="tooltip" title=<%= @account.address %>>
+        <%= binary_part(@account.address, 0, 13) %>...
+      </div>
+      <div class="copy-icon" data-clipboard-text="<%= @account.address %>">
+        <svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 14 14">
+          <path fill-rule="evenodd" d="M13 10a1 1 0 0 1-1-1V2H5a1 1 0 0 1 0-2h8a1 1 0 0 1 1 1v8a1 1 0 0 1-1 1zm-3-5v8a1 1 0 0 1-1 1H1a1 1 0 0 1-1-1V5a1 1 0 0 1 1-1h8a1 1 0 0 1 1 1zM8 6H2v6h6V6z"/>
+        </svg>
+      </div>
+    <% else %>
+      <a href="https://metamask.io" target="_blank" data-selector="login-button" class="stakes-top-stats-login">Login</a> with MetaMask
+    <% end %>
+  </span>
+  <span class="stakes-top-stats-label">
+    <span class="stakes-top-stats-label-item"><%= gettext "Balance" %>:
+      <%= format_according_to_decimals(@account[:balance], @token.decimals) %> <%= @token.symbol %>
+    </span>
+    <span class="stakes-top-stats-label-item"><%= gettext "Staked" %>:
+      <%= format_according_to_decimals(@account[:staked], @token.decimals) %> <%= @token.symbol %>
+    </span>
+  </span>
+</div>
--- a/apps/block_scout_web/lib/block_scout_web/templates/stakes/_stakes_top.html.eex
+++ b/apps/block_scout_web/lib/block_scout_web/templates/stakes/_stakes_top.html.eex
@ -4,10 +4,10 @@
      <%= render BlockScoutWeb.StakesView, "_stakes_stats_item.html", title: gettext("Epoch number"), value: @epoch_number %>
      <%= render BlockScoutWeb.StakesView, "_stakes_stats_item.html", title: gettext("Block number"), value: @block_number %>
      <%= render BlockScoutWeb.StakesView, "_stakes_stats_item.html", title: gettext("Next epoch in"), value: ngettext("%{blocks} block", "%{blocks} blocks", @epoch_end_in, blocks: @epoch_end_in) %>
+      <%= render BlockScoutWeb.StakesView, "_stakes_stats_item_account.html", account: @account, token: @token %>
      <!-- Buttons -->
      <div class="stakes-top-buttons">
      </div>
    </div>
  </div>
 </div>
-<%= render BlockScoutWeb.StakesView, "_stakes_modal_become_candidate.html" %>
--- a/apps/block_scout_web/lib/block_scout_web/views/currency_helpers.ex
+++ b/apps/block_scout_web/lib/block_scout_web/views/currency_helpers.ex
@ -25,6 +25,9 @@ defmodule BlockScoutWeb.CurrencyHelpers do

  ## Examples

+      iex> format_according_to_decimals(nil, Decimal.new(5))
+      "-"
+
      iex> format_according_to_decimals(Decimal.new(20500000), Decimal.new(5))
      "205"

@ -40,7 +43,11 @@ defmodule BlockScoutWeb.CurrencyHelpers do
      iex> format_according_to_decimals(205000, Decimal.new(2))
      "2,050"
  """
-  @spec format_according_to_decimals(non_neg_integer(), nil) :: String.t()
+  @spec format_according_to_decimals(non_neg_integer() | nil, nil) :: String.t()
+  def format_according_to_decimals(nil, _) do
+    "-"
+  end
+
  def format_according_to_decimals(value, nil) do
    format_according_to_decimals(value, Decimal.new(0))
  end
--- a/apps/explorer/lib/explorer/chain.ex
+++ b/apps/explorer/lib/explorer/chain.ex
@ -53,6 +53,7 @@ defmodule Explorer.Chain do
    PendingBlockOperation,
    SmartContract,
    StakingPool,
+    StakingPoolsDelegator,
    Token,
    Token.Instance,
    TokenTransfer,
@ -4349,6 +4350,13 @@ defmodule Explorer.Chain do
    end
  end

+  @spec fetch_last_token_balance(Hash.Address.t(), Hash.Address.t()) :: Decimal.t()
+  def fetch_last_token_balance(address_hash, token_contract_address_hash) do
+    address_hash
+    |> CurrentTokenBalance.last_token_balance(token_contract_address_hash)
+    |> Repo.one() || Decimal.new(0)
+  end
+
  @spec address_to_coin_balances(Hash.Address.t(), [paging_options]) :: []
  def address_to_coin_balances(address_hash, options) do
    paging_options = Keyword.get(options, :paging_options, @default_paging_options)
@ -4725,6 +4733,7 @@ defmodule Explorer.Chain do

    base_query =
      StakingPool
+      |> where(is_deleted: false)
      |> staking_pool_filter(filter)
      |> limit(^page_size)
      |> order_by(desc: :staked_ratio, asc: :staking_address_hash)
@ -4747,39 +4756,44 @@ defmodule Explorer.Chain do
  @spec staking_pools_count(filter :: :validator | :active | :inactive) :: integer
  def staking_pools_count(filter) do
    StakingPool
+    |> where(is_deleted: false)
    |> staking_pool_filter(filter)
    |> Repo.aggregate(:count, :staking_address_hash)
  end

  defp staking_pool_filter(query, :validator) do
-    where(
-      query,
-      [pool],
-      pool.is_active == true and
-        pool.is_deleted == false and
-        pool.is_validator == true
-    )
+    where(query, is_validator: true)
  end

  defp staking_pool_filter(query, :active) do
-    where(
-      query,
-      [pool],
-      pool.is_active == true and
-        pool.is_deleted == false
-    )
+    where(query, is_active: true)
  end

  defp staking_pool_filter(query, :inactive) do
-    where(
-      query,
-      [pool],
-      pool.is_active == false and
-        pool.is_deleted == false
-    )
+    where(query, is_active: false)
+  end
+
+  def staking_pool(staking_address_hash) do
+    Repo.get_by(StakingPool, staking_address_hash: staking_address_hash)
  end

-  defp staking_pool_filter(query, _), do: query
+  def get_total_staked(address_hash) do
+    staked_query =
+      from(
+        delegator in StakingPoolsDelegator,
+        where: delegator.delegator_address_hash == ^address_hash and delegator.is_active,
+        select: sum(delegator.stake_amount)
+      )
+
+    self_staked_query =
+      from(
+        pool in StakingPool,
+        where: pool.staking_address_hash == ^address_hash and pool.is_active,
+        select: sum(pool.self_staked_amount)
+      )
+
+    Decimal.add(Repo.one(staked_query) || Decimal.new(0), Repo.one(self_staked_query) || Decimal.new(0))
+  end

  defp with_decompiled_code_flag(query, _hash, false), do: query

--- a/apps/explorer/lib/explorer/chain/address/current_token_balance.ex
+++ b/apps/explorer/lib/explorer/chain/address/current_token_balance.ex
@ -106,6 +106,18 @@ defmodule Explorer.Chain.Address.CurrentTokenBalance do
    )
  end

+  @doc """
+  Builds an `t:Ecto.Query.t/0` to fetch the current balance of the given address for the given token.
+  """
+  def last_token_balance(address_hash, token_contract_address_hash) do
+    from(
+      tb in __MODULE__,
+      where: tb.token_contract_address_hash == ^token_contract_address_hash,
+      where: tb.address_hash == ^address_hash,
+      select: tb.value
+    )
+  end
+
  @doc """
  Builds an `t:Ecto.Query.t/0` to fetch addresses that hold the token.