simplex-chat · brenzi · Jun 10, 2026 · Jun 10, 2026
diff --git a/src/assets/simplexBadge.ts b/src/assets/simplexBadge.ts
@@ -0,0 +1,6 @@
+// SimpleX NFT badge — the two-tone "X" on navy, matching the dApp's
+// public/simplex-nft-badge.jpg used by NFTTemplate on the registration
+// "congratulations" screen. Inlined as a base64 data URI (not read from
+// disk) so the renderer works on filesystem-less hosts (Cloudflare Workers).
+export const SIMPLEX_BADGE_DATA_URI =
+  'data:image/jpeg;base64,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';
diff --git a/src/config.ts b/src/config.ts
@@ -1,6 +1,12 @@
 const path = require('path');
+const { getAddress } = require('ethers');
 require('dotenv').config();
 
+// Normalise addresses to EIP-55 checksum form. checkContract() compares the
+// route's contract address (run through ethers.getAddress) against these with
+// `===`, so a lowercase override from the env would silently fail to match.
+const checksum = (addr: string) => getAddress(addr);
+
 const PORT = process.env.PORT || 8080;
 const HOST = process.env.HOST || 'localhost';
 const ENV = process.env.ENV || 'local'; // local/prod
@@ -11,6 +17,18 @@ const CANVAS_FONT_PATH = path.join(FONT_FOLDER, 'Satoshi-Bold.ttf');
 const CANVAS_EMOJI_FONT_PATH = path.join(FONT_FOLDER, 'NotoColorEmoji.ttf');
 const INAMEWRAPPER = process.env.INAMEWRAPPER || '0xd82c42d8';
 
+// --- SNRC customisations ---
+// The deployment indexes our own ENS-shaped contracts on mainnet (the .testing
+// / .simplex TLDs), served by the self-hosted Graph Node from
+// simplex-namespace-contract/scripts/subgraph — not the public ENS subgraph.
+// When set, SUBGRAPH_URL overrides the per-network table in service/network.ts.
+const SUBGRAPH_URL = process.env.SUBGRAPH_URL || '';
+// TLD used for display fallbacks (hashed / ellipsised names). Normalised names
+// already carry their TLD via the subgraph `name` field.
+const SIMPLEX_TLD = process.env.SIMPLEX_TLD || 'testing';
+// dApp base URL used for the OpenSea `url` field (link back to the name page).
+const DAPP_BASE_URL = process.env.DAPP_BASE_URL || 'https://testing-names.simplex.chat';
+
 const IPFS_GATEWAY = process.env.IPFS_GATEWAY || 'https://ipfs.io';
 const INFURA_API_KEY = process.env.INFURA_API_KEY || '';
 const OPENSEA_API_KEY = process.env.OPENSEA_API_KEY || '';
@@ -23,9 +41,9 @@ const NODE_PROVIDER_URL_CF = process.env.NODE_PROVIDER_URL_CF || '';
 const NODE_PROVIDER_URL_GOERLI = process.env.NODE_PROVIDER_URL_GOERLI || '';
 const NODE_PROVIDER_URL_SEPOLIA = process.env.NODE_PROVIDER_URL_SEPOLIA || '';
 
-const ADDRESS_ETH_REGISTRAR = process.env.ADDRESS_ETH_REGISTRAR || '0x57f1887a8BF19b14fC0dF6Fd9B2acc9Af147eA85';
-const ADDRESS_ETH_REGISTRY = process.env.ADDRESS_ETH_REGISTRY || '0x00000000000c2e074ec69a0dfb2997ba6c7d2e1e'
-const ADDRESS_NAME_WRAPPER = process.env.ADDRESS_NAME_WRAPPER || '0x114D4603199df73e7D157787f8778E21fCd13066';
+const ADDRESS_ETH_REGISTRAR = checksum(process.env.ADDRESS_ETH_REGISTRAR || '0x57f1887a8BF19b14fC0dF6Fd9B2acc9Af147eA85');
+const ADDRESS_ETH_REGISTRY = checksum(process.env.ADDRESS_ETH_REGISTRY || '0x00000000000c2e074ec69a0dfb2997ba6c7d2e1e');
+const ADDRESS_NAME_WRAPPER = checksum(process.env.ADDRESS_NAME_WRAPPER || '0x114D4603199df73e7D157787f8778E21fCd13066');
 
 const SERVER_URL =
   ENV === 'local' ? `http://localhost:${PORT}` : `https://${HOST}`;
@@ -48,6 +66,9 @@ export {
   ADDRESS_ETH_REGISTRAR,
   ADDRESS_ETH_REGISTRY,
   ADDRESS_NAME_WRAPPER,
+  DAPP_BASE_URL,
+  SIMPLEX_TLD,
+  SUBGRAPH_URL,
   CANVAS_FONT_PATH,
   CANVAS_EMOJI_FONT_PATH,
   ETH_REGISTRY_ABI,

diff --git a/src/endpoint.ts b/src/endpoint.ts
@@ -3,8 +3,7 @@ import { Express } from 'express';
 import { ensMetadata } from './controller/ensMetadata';
 import { ensImage } from './controller/ensImage';
 import { ensRasterize } from './controller/ensRasterize';
-import { avatarMetadata } from './controller/avatarMetadata';
-import { avatarImage } from './controller/avatarImage';
+// SNRC: avatars are out of scope (issue #3); the /avatar routes are not registered.
 import { headerMetadata } from './controller/headerMetadata';
 import { headerImage } from './controller/headerImage';
 import { queryNFTep } from './controller/queryNFT';
@@ -31,10 +30,6 @@ export default function (app: Express) {
     ensRasterize
   );
 
-  app.get('/:networkName/avatar/:name/meta', avatarMetadata);
-
-  app.get('/:networkName/avatar/:name', avatarImage);
-
   app.get('/:networkName/header/:name/meta', headerMetadata);
 
   app.get('/:networkName/header/:name', headerImage);

diff --git a/src/service/domain.ts b/src/service/domain.ts
@@ -23,12 +23,14 @@ import {
   decodeFuses, 
   getWrapperState 
 }                             from '../utils/fuse';
+import { namehash }           from '@ensdomains/ensjs/utils';
 import { createBatchQuery }   from '../utils/batchQuery';
 import { getNamehash }        from '../utils/namehash';
 import { bigIntToUint8Array } from '../utils/bigIntToUint8Array';
+import { SERVER_URL, SIMPLEX_TLD } from '../config';
 
-const eth =
-  '0x93cdeb708b7545dc668eb9280176169d1c33cfd8ed6f04690a0bcc88a93fc4ae';
+// SNRC: TLD parent node (upstream hardcoded namehash('eth')).
+const eth = namehash(SIMPLEX_TLD);
 const GRACE_PERIOD_MS = 7776000000; // 90 days as milliseconds
 
 export async function getDomain(
@@ -105,11 +107,10 @@ export async function getDomain(
       }
       metadata.generateImage();
     } else {
-      metadata.setBackground(
-        `https://metadata.ens.domains/${networkName}/avatar/${name}`
-      );
+      // SNRC: avatars unsupported (issue #3); no avatar background. Image points
+      // at this service's own /image route (SERVER_URL), not metadata.ens.domains.
       metadata.setImage(
-        `https://metadata.ens.domains/${networkName}/${contractAddress}/${hexId}/image`
+        `${SERVER_URL}/${networkName}/${contractAddress}/${hexId}/image`
       );
     }
   }

diff --git a/src/service/metadata.ts b/src/service/metadata.ts
@@ -5,7 +5,7 @@ import {
   registerFont 
 }                                                   from 'canvas';
 import { Version }                                  from '../base';
-import { CANVAS_FONT_PATH, CANVAS_EMOJI_FONT_PATH } from '../config';
+import { CANVAS_FONT_PATH, CANVAS_EMOJI_FONT_PATH, SIMPLEX_TLD, DAPP_BASE_URL } from '../config';
 import createSVGfromTemplate                        from '../svg-template';
 import base64EncodeUnicode                          from '../utils/base64encode';
 import { isASCII, findCharacterSet }                from '../utils/characterSet';
@@ -64,7 +64,7 @@ export class Metadata {
     this.description = this.formatDescription(name, description);
     this.attributes = this.initializeAttributes(created_date, label);
     this.url = this.is_normalized
-      ? `https://app.ens.domains/name/${name}`
+      ? `${DAPP_BASE_URL}/${name}`
       : null;
     this.last_request_date = last_request_date;
     this.version = version;
@@ -79,12 +79,12 @@ export class Metadata {
       ? ens_beautify(name)
       : tokenId.replace(
           new RegExp('^(.{0,6}).*(.{4})$', 'im'),
-          '[$1...$2].eth'
+          `[$1...$2].${SIMPLEX_TLD}`
         );
   }
 
   formatDescription(name: string, description?: string) {
-    const baseDescription = description || `${this.name}, an ENS name.`;
+    const baseDescription = description || `${this.name}, a SimpleX name.`;
     const normalizedNote = !this.is_normalized
       ? ` (${name} is not in normalized form)`
       : '';
@@ -114,7 +114,7 @@ export class Metadata {
     if (
       version == Version.v2 &&
       wrapperState === WrapperState.WRAPPED &&
-      (label.split('.').length > 1 || !label.endsWith('.eth'))
+      (label.split('.').length > 1 || !label.endsWith('.' + SIMPLEX_TLD))
     ) {
       return ' [ ⚠️ ATTENTION: THE NFT FOR THIS NAME CAN BE REVOKED AT ANY TIME WHILE IT IS IN THE WRAPPED STATE ]';
     }
@@ -261,7 +261,7 @@ export class Metadata {
       name.substring(0, Metadata.MAX_CHAR - 7) +
       '...' +
       name.substring(_nameLength - 7, _nameLength - 4) +
-      '.eth'
+      '.' + SIMPLEX_TLD
     );
   }
 

diff --git a/src/service/network.ts b/src/service/network.ts
@@ -6,6 +6,7 @@ import {
   NODE_PROVIDER_URL_CF,
   NODE_PROVIDER_URL_GOERLI,
   NODE_PROVIDER_URL_SEPOLIA,
+  SUBGRAPH_URL as SUBGRAPH_URL_OVERRIDE,
   THE_GRAPH_API_KEY,
 } from '../config';
 
@@ -59,6 +60,13 @@ export default function getNetwork(network: NetworkName): {
   // currently subgraphs used under this function are outdated,
   // we will have namewrapper support and more attributes when latest subgraph goes to production
   let SUBGRAPH_URL: string;
+  // SNRC: a self-hosted Graph Node (indexing our mainnet .testing/.simplex
+  // contracts) overrides the public per-network table when configured.
+  if (SUBGRAPH_URL_OVERRIDE) {
+    const WEB3_URL = getWeb3URL(NODE_PROVIDER, NODE_PROVIDER_URL, network);
+    const provider = new JsonRpcProvider(WEB3_URL, network, { staticNetwork: true });
+    return { WEB3_URL, SUBGRAPH_URL: SUBGRAPH_URL_OVERRIDE, provider };
+  }
   switch (network) {
     case NETWORK.LOCAL:
       SUBGRAPH_URL = 'http://127.0.0.1:8000/subgraphs/name/graphprotocol/ens';

diff --git a/src/service/subgraph.ts b/src/service/subgraph.ts
@@ -1,7 +1,10 @@
 import { gql } from 'graphql-request';
+import { namehash } from '@ensdomains/ensjs/utils';
+import { SIMPLEX_TLD } from '../config';
 
-const ETH_NAMEHASH =
-  '0x93cdeb708b7545dc668eb9280176169d1c33cfd8ed6f04690a0bcc88a93fc4ae';
+// SNRC: the 2LD lookup filters on the parent TLD node. Upstream hardcoded
+// namehash('eth'); we derive it from the configured TLD (.testing / .simplex).
+const ETH_NAMEHASH = namehash(SIMPLEX_TLD);
 
 export const GET_DOMAINS = gql`
   query getDomains($tokenId: String) {