List of known phishing addresses (for use in wallets) (#57)

* Add list of known addresses * Sorted * Add polkadot.express * typo * Add checkAddress & tests * Update comments * Return error * U8a cache
2026-04-22 02:08:00 +00:00 · 2021-01-22 12:16:41 +01:00
parent 55b0fb1f9e
commit 53be1b8416
6 changed files with 428 additions and 24 deletions
@@ -14,7 +14,9 @@
  "homepage": "https://github.com/polkadot-js/common/tree/master/packages/phishing#readme",
  "dependencies": {
    "@babel/runtime": "^7.12.5",
-    "@polkadot/x-fetch": "^5.3.1"
+    "@polkadot/util": "^5.3.2-6",
+    "@polkadot/util-crypto": "^5.3.2-6",
+    "@polkadot/x-fetch": "^5.3.2-6"
  },
  "devDependencies": {
    "@types/js-yaml": "^4.0.0",
@@ -1,7 +1,7 @@
 // Copyright 2020-2021 @polkadot/phishing authors & contributors
 // SPDX-License-Identifier: Apache-2.0

-import { checkIfDenied } from '.';
+import { checkAddress, checkIfDenied } from '.';

 describe('checkIfDenied', (): void => {
  it('returns false when host in list', async (): Promise<void> => {
@@ -40,3 +40,23 @@ describe('checkIfDenied', (): void => {
    ).toEqual(true);
  });
 });
+
+describe('checkAddress', (): void => {
+  it('returns null if the address is not found', async (): Promise<void> => {
+    expect(
+      await checkAddress('5GNJqTPyNqANBkUVMN1LPPrxXnFouWXoe2wNSmmEoLctxiZY')
+    ).toEqual(null);
+  });
+
+  it('returns the site when the address is found', async (): Promise<void> => {
+    expect(
+      await checkAddress('14Vxs7UB9FqfQ53wwTJUBAJThs5N7b3bg89HscRU6eBqrFhQ')
+    ).toEqual('polkadot.center');
+  });
+
+  it('returns the site even if the ss58 is different', async (): Promise<void> => {
+    expect(
+      await checkAddress('5FkmzcdNekhdSA7j4teSSyHGUnKT8bzNBFvVVeZSGmbSpYHH')
+    ).toEqual('polkadots.network');
+  });
+});
@@ -1,17 +1,23 @@
 // Copyright 2020-2021 @polkadot/phishing authors & contributors
 // SPDX-License-Identifier: Apache-2.0

-import type { HostList } from './types';
+import type { AddressList, HostList } from './types';

+import { u8aEq } from '@polkadot/util';
+import { decodeAddress } from '@polkadot/util-crypto';
 import { fetch } from '@polkadot/x-fetch';

-// Equivalent to https://raw.githubusercontent.com/polkadot-js/phishing/master/all.json
+// Equivalent to https://raw.githubusercontent.com/polkadot-js/phishing/master/{address,all}.json
+const ADDRESS_JSON = 'https://polkadot.js.org/phishing/address.json';
 const ALL_JSON = 'https://polkadot.js.org/phishing/all.json';
 // 1 hour cache refresh
-const CACHE_TIMEOUT = 1 * 60 * 60 * 1000;
+const CACHE_TIMEOUT = 45 * 60 * 1000;

-let cacheEnd = 0;
-let cacheList: HostList | null = null;
+let cacheAddrEnd = 0;
+let cacheAddrList: AddressList | null = null;
+let cacheAddrU8a: [string, Uint8Array[]][] | null = null;
+let cacheHostEnd = 0;
+let cacheHostList: HostList | null = null;

 // gets the host-only part for a host
 function extractHost (path: string): string {
@@ -20,21 +26,56 @@ function extractHost (path: string): string {
    .split('/')[0];
 }

+/**
+ * Retrieve a list of known phishing addresses
+ */
+export async function retrieveAddrList (allowCached = true): Promise<AddressList> {
+  const now = Date.now();
+
+  if (allowCached && cacheAddrList && (now < cacheAddrEnd)) {
+    return cacheAddrList;
+  }
+
+  const response = await fetch(ADDRESS_JSON);
+  const list = (await response.json()) as AddressList;
+
+  cacheAddrEnd = now + CACHE_TIMEOUT;
+  cacheAddrList = list;
+
+  return list;
+}
+
+async function retrieveAddrU8a (allowCached = true): Promise<[string, Uint8Array[]][]> {
+  const now = Date.now();
+
+  if (allowCached && cacheAddrU8a && (now < cacheAddrEnd)) {
+    return cacheAddrU8a;
+  }
+
+  const all = await retrieveAddrList(allowCached);
+
+  cacheAddrU8a = Object
+    .entries(all)
+    .map(([key, addresses]): [string, Uint8Array[]] => [key, addresses.map((a) => decodeAddress(a))]);
+
+  return cacheAddrU8a;
+}
+
 /**
 * Retrieve allow/deny from our list provider
 */
 export async function retrieveHostList (allowCached = true): Promise<HostList> {
  const now = Date.now();

-  if (allowCached && cacheList && (now < cacheEnd)) {
-    return cacheList;
+  if (allowCached && cacheHostList && (now < cacheHostEnd)) {
+    return cacheHostList;
  }

  const response = await fetch(ALL_JSON);
  const list = (await response.json()) as HostList;

-  cacheEnd = now + CACHE_TIMEOUT;
-  cacheList = list;
+  cacheHostEnd = now + CACHE_TIMEOUT;
+  cacheHostList = list;

  return list;
 }
@@ -58,9 +99,28 @@ export function checkHost (items: string[], host: string): boolean {
  });
 }

+/**
+ * Determines if a host is in our deny list. Returns a string containing the phishing site if host is a
+ * problematic one. Returns null if the address is not associated with phishing.
+ */
+export async function checkAddress (address: string | Uint8Array, allowCached = true): Promise<string | null> {
+  try {
+    const all = await retrieveAddrU8a(allowCached);
+    const u8a = decodeAddress(address);
+    const entry = all.find(([, all]) => all.some((a) => u8aEq(a, u8a))) || [null];
+
+    return entry[0];
+  } catch (error) {
+    console.error('Exception while checking address, assuming non-phishing');
+    console.error(error);
+
+    return null;
+  }
+}
+
 /**
 * Determines if a host is in our deny list. Returns true if host is a problematic one. Returns
- * true if the host provided is in our list of less-than-honest sites.
+ * false if the host provided is not in our list of less-than-honest sites.
 */
 export async function checkIfDenied (host: string, allowCached = true): Promise<boolean> {
  try {
@@ -68,7 +128,7 @@ export async function checkIfDenied (host: string, allowCached = true): Promise<

    return checkHost(deny, host);
  } catch (error) {
-    console.error('Exception while checking host, assuming false');
+    console.error('Exception while checking host, assuming non-phishing');
    console.error(error);

    return false;
@@ -5,3 +5,5 @@ export interface HostList {
  allow: string[];
  deny: string[];
 }
+
+export type AddressList = Record<string, string[]>;
@@ -7,14 +7,24 @@ function sortSection (values) {
  return values.sort((a, b) => a.localeCompare(b));
 }

-const original = JSON.parse(fs.readFileSync('all.json', 'utf-8'));
+function sortAddress (values) {
+  return Object
+    .entries(values)
+    .sort(([a], [b]) => a.localeCompare(b))
+    .map(([key, addresses]) => [key, sortSection(addresses)])
+    .reduce((all, [key, addresses]) => ({ ...all, [key]: addresses }), {});
+}
+
+const addr = JSON.parse(fs.readFileSync('address.json', 'utf-8'));
+const all = JSON.parse(fs.readFileSync('all.json', 'utf-8'));
 const meta = JSON.parse(fs.readFileSync('urlmeta.json', 'utf-8'));

 // sorted order for all entries
-const allow = sortSection(original.allow);
-const deny = sortSection(original.deny);
+const allow = sortSection(all.allow);
+const deny = sortSection(all.deny);

 // rewrite with all our entries (newline included)
+fs.writeFileSync('address.json', `${JSON.stringify(sortAddress(addr), null, 2)}\n`);
 fs.writeFileSync('all.json', `${JSON.stringify({ allow, deny }, null, 2)}\n`);

 // find out what we don't have
@@ -1708,12 +1708,23 @@ __metadata:
  languageName: node
  linkType: hard

+"@polkadot/networks@npm:5.3.2-7":
+  version: 5.3.2-7
+  resolution: "@polkadot/networks@npm:5.3.2-7"
+  dependencies:
+    "@babel/runtime": ^7.12.5
+  checksum: 4bd6193b653dfb1f7fd0e3b59e201ccc53c85da37a090bcbe06de1a4ab9fa64364057b372335158a3d4e522a8fb716deb592f8bbdbbf5654410b0fc91dde7b26
+  languageName: node
+  linkType: hard
+
 "@polkadot/phishing@workspace:packages/phishing":
  version: 0.0.0-use.local
  resolution: "@polkadot/phishing@workspace:packages/phishing"
  dependencies:
    "@babel/runtime": ^7.12.5
-    "@polkadot/x-fetch": ^5.3.1
+    "@polkadot/util": ^5.3.2-6
+    "@polkadot/util-crypto": ^5.3.2-6
+    "@polkadot/x-fetch": ^5.3.2-6
    "@types/js-yaml": ^4.0.0
    js-yaml: ^4.0.0
  languageName: unknown
@@ -1725,14 +1736,113 @@ __metadata:
  languageName: unknown
  linkType: soft

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-  version: 5.3.1
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+  resolution: "@polkadot/util-crypto@npm:5.3.2-7"
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+    "@polkadot/wasm-crypto": ^3.2.1
+    "@polkadot/x-randomvalues": 5.3.2-7
+    base-x: ^3.0.8
+    blakejs: ^1.1.0
+    bn.js: ^4.11.9
+    create-hash: ^1.2.0
+    elliptic: ^6.5.3
+    hash.js: ^1.1.7
+    js-sha3: ^0.8.0
+    scryptsy: ^2.1.0
+    tweetnacl: ^1.0.3
+    xxhashjs: ^0.2.2
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@@ -1818,6 +1928,15 @@ __metadata:
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+"@types/bn.js@npm:^4.11.6":
+  version: 4.11.6
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 "@types/graceful-fs@npm:^4.1.2":
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@@ -2651,6 +2770,15 @@ __metadata:
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+"base-x@npm:^3.0.8":
+  version: 3.0.8
+  resolution: "base-x@npm:3.0.8"
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@@ -2707,6 +2835,13 @@ __metadata:
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+"blakejs@npm:^1.1.0":
+  version: 1.1.0
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@@ -2714,6 +2849,13 @@ __metadata:
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+"bn.js@npm:^4.11.9, bn.js@npm:^4.4.0":
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@@ -2767,6 +2909,13 @@ __metadata:
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+"brorand@npm:^1.0.1":
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 "browser-process-hrtime@npm:^1.0.0":
  version: 1.0.0
  resolution: "browser-process-hrtime@npm:1.0.0"
@@ -2991,6 +3140,16 @@ __metadata:
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+"cipher-base@npm:^1.0.1":
+  version: 1.0.4
+  resolution: "cipher-base@npm:1.0.4"
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@@ -3291,6 +3450,19 @@ __metadata:
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+"create-hash@npm:^1.2.0":
+  version: 1.2.0
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+  dependencies:
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+    md5.js: ^1.3.4
+    ripemd160: ^2.0.1
+    sha.js: ^2.4.0
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+  linkType: hard
+
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  resolution: "cross-spawn@npm:6.0.5"
@@ -3354,6 +3526,13 @@ __metadata:
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+"cuint@npm:^0.2.2":
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  resolution: "dashdash@npm:1.14.1"
@@ -3755,6 +3934,21 @@ __metadata:
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+"elliptic@npm:^6.5.3":
+  version: 6.5.3
+  resolution: "elliptic@npm:6.5.3"
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+    hmac-drbg: ^1.0.0
+    inherits: ^2.0.1
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+
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  resolution: "email-addresses@npm:3.1.0"
@@ -5151,6 +5345,17 @@ __metadata:
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+"hash-base@npm:^3.0.0":
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+"hash.js@npm:^1.0.0, hash.js@npm:^1.0.3, hash.js@npm:^1.1.7":
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+  resolution: "hmac-drbg@npm:1.0.1"
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  resolution: "hosted-git-info@npm:2.8.8"
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+"ip-regex@npm:^4.2.0":
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+  resolution: "ip-regex@npm:4.2.0"
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  resolution: "is-accessor-descriptor@npm:0.1.6"
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+"js-sha3@npm:^0.8.0":
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+  resolution: "js-sha3@npm:0.8.0"
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+  languageName: node
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  resolution: "js-tokens@npm:4.0.0"
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+"md5.js@npm:^1.3.4":
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  resolution: "merge-source-map@npm:1.1.0"
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+"minimalistic-assert@npm:^1.0.0, minimalistic-assert@npm:^1.0.1":
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+  resolution: "minimalistic-assert@npm:1.0.1"
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+  languageName: node
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+"minimalistic-crypto-utils@npm:^1.0.0, minimalistic-crypto-utils@npm:^1.0.1":
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+  resolution: "minimalistic-crypto-utils@npm:1.0.1"
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+  languageName: node
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 "minimatch@npm:^3.0.0, minimatch@npm:^3.0.4":
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  resolution: "minimatch@npm:3.0.4"
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  dependencies:
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+"ripemd160@npm:^2.0.1":
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+  resolution: "ripemd160@npm:2.0.2"
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+  languageName: node
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+
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  resolution: "root-workspace-0b6124@workspace:."
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@@ -8630,6 +8905,13 @@ __metadata:
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+"scryptsy@npm:^2.1.0":
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+  resolution: "scryptsy@npm:2.1.0"
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+  languageName: node
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+
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  resolution: "semver-diff@npm:3.1.1"
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+"sha.js@npm:^2.4.0":
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+  resolution: "sha.js@npm:2.4.11"
+  dependencies:
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+    safe-buffer: ^5.0.1
+  bin:
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+  languageName: node
+  linkType: hard
+
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  resolution: "shebang-command@npm:1.2.0"
@@ -9591,6 +9885,13 @@ __metadata:
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+"tweetnacl@npm:^1.0.3":
+  version: 1.0.3
+  resolution: "tweetnacl@npm:1.0.3"
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+  languageName: node
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 "type-check@npm:^0.4.0, type-check@npm:~0.4.0":
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  resolution: "type-check@npm:0.4.0"
@@ -10204,6 +10505,15 @@ __metadata:
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+"xxhashjs@npm:^0.2.2":
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+  resolution: "xxhashjs@npm:0.2.2"
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+  languageName: node
+  linkType: hard
+
 "y18n@npm:^4.0.0":
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  resolution: "y18n@npm:4.0.1"