400a2df Add WalletConnect support — radicle-explorer

Radicle web interface

Add WalletConnect support

Alexis Sellier committed 4 years ago

commit 400a2df0a4e30dedf92288fad50a3777f877fcdd
parent 767355b78239f7deaf7b6b98f58097c327c1d0a5

15 files changed +2277 -110

modified package-lock.json

@@ -10,17 +10,25 @@

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@@ -290,9 +298,9 @@

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@@ -304,13 +312,289 @@

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@@ -954,6 +1238,39 @@

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       "resolved": "https://registry.npmjs.org/strip-hex-prefix/-/strip-hex-prefix-1.0.0.tgz",

@@ -6696,6 +8274,11 @@

         "is-number": "^7.0.0"
       }
     },
     "toggle-selection": {
       "version": "1.0.6",
       "resolved": "https://registry.npmjs.org/toggle-selection/-/toggle-selection-1.0.6.tgz",
       "integrity": "sha1-bkWxJj8gF/oKzH2J14sVuL932jI="
     },
     "tslib": {
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.2.0.tgz",

@@ -6733,6 +8316,14 @@

       "integrity": "sha512-Ne+eE4r0/iWnpAxD852z3A+N0Bt5RN//NjJwRd2VFHEmrywxf5vsZlh4R6lixl6B+wz/8d+maTSAkN1FIkI3LQ==",
       "dev": true
     },
     "typedarray-to-buffer": {
       "version": "3.1.5",
       "resolved": "https://registry.npmjs.org/typedarray-to-buffer/-/typedarray-to-buffer-3.1.5.tgz",
       "integrity": "sha512-zdu8XMNEDepKKR+XYOXAVPtWui0ly0NtohUscw+UmaHiAWT8hrV1rr//H6V+0DvJ3OQ19S979M0laLfX8rm82Q==",
       "requires": {
         "is-typedarray": "^1.0.0"
       }
     },
     "typescript": {
       "version": "4.2.4",
       "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.2.4.tgz",

@@ -6830,12 +8421,63 @@

         "isexe": "^2.0.0"
       }
     },
     "which-module": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/which-module/-/which-module-2.0.0.tgz",
       "integrity": "sha1-2e8H3Od7mQK4o6j6SzHD4/fm6Ho="
     },
     "window-getters": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/window-getters/-/window-getters-1.0.0.tgz",
       "integrity": "sha512-xyvEFq3x+7dCA7NFhqOmTMk0fPmmAzCUYL2svkw2LGBaXXQLRP0lFnfXHzysri9WZNMkzp/FD1u0w2Qc7Co+JA=="
     },
     "window-metadata": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/window-metadata/-/window-metadata-1.0.0.tgz",
       "integrity": "sha512-eYoXsZ9X4J+6xZgbHhNAatSR5bCtT409q8B+2Ol9ySx7qsdtgVZcNfox4qszFmKlGsFtT2b1Tcmcy69bRMObcg==",
       "requires": {
         "window-getters": "^1.0.0"
       }
     },
     "word-wrap": {
       "version": "1.2.3",
       "resolved": "https://registry.npmjs.org/word-wrap/-/word-wrap-1.2.3.tgz",
       "integrity": "sha512-Hz/mrNwitNRh/HUAtM/VT/5VH+ygD6DV7mYKZAtHOrbs8U7lvPS6xf7EJKMF0uW1KJCl0H701g3ZGus+muE5vQ==",
       "dev": true
     },
     "wrap-ansi": {
       "version": "5.1.0",
       "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-5.1.0.tgz",
       "integrity": "sha512-QC1/iN/2/RPVJ5jYK8BGttj5z83LmSKmvbvrXPNCLZSEb32KKVDJDl/MOt2N01qU2H/FkzEa9PKto1BqDjtd7Q==",
       "requires": {
         "ansi-styles": "^3.2.0",
         "string-width": "^3.0.0",
         "strip-ansi": "^5.0.0"
       },
       "dependencies": {
         "ansi-styles": {
           "version": "3.2.1",
           "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
           "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
           "requires": {
             "color-convert": "^1.9.0"
           }
         },
         "color-convert": {
           "version": "1.9.3",
           "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-1.9.3.tgz",
           "integrity": "sha512-QfAUtd+vFdAtFQcC8CCyYt1fYWxSqAiK2cSD6zDB8N3cpsEBAvRxp9zOGg6G/SHHJYAT88/az/IuDGALsNVbGg==",
           "requires": {
             "color-name": "1.1.3"
           }
         },
         "color-name": {
           "version": "1.1.3",
           "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.3.tgz",
           "integrity": "sha1-p9BVi9icQveV3UIyj3QIMcpTvCU="
         }
       }
     },
     "wrappy": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",

@@ -6848,11 +8490,42 @@

       "integrity": "sha512-YmhHDO4MzaDLB+M9ym/mDA5z0naX8j7SIlT8f8z+I0VtzsRbekxEutHSme7NPS2qE8StCYQNUnfWdXta/Yu85A==",
       "requires": {}
     },
     "y18n": {
       "version": "4.0.3",
       "resolved": "https://registry.npmjs.org/y18n/-/y18n-4.0.3.tgz",
       "integrity": "sha512-JKhqTOwSrqNA1NY5lSztJ1GrBiUodLMmIZuLiDaMRJ+itFd+ABVE8XBjOvIWL+rSqNDC74LCSFmlb/U4UZ4hJQ=="
     },
     "yallist": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz",
       "integrity": "sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A==",
       "dev": true
     },
     "yargs": {
       "version": "13.3.2",
       "resolved": "https://registry.npmjs.org/yargs/-/yargs-13.3.2.tgz",
       "integrity": "sha512-AX3Zw5iPruN5ie6xGRIDgqkT+ZhnRlZMLMHAs8tg7nRruy2Nb+i5o9bwghAogtM08q1dpr2LVoS8KSTMYpWXUw==",
       "requires": {
         "cliui": "^5.0.0",
         "find-up": "^3.0.0",
         "get-caller-file": "^2.0.1",
         "require-directory": "^2.1.1",
         "require-main-filename": "^2.0.0",
         "set-blocking": "^2.0.0",
         "string-width": "^3.0.0",
         "which-module": "^2.0.0",
         "y18n": "^4.0.0",
         "yargs-parser": "^13.1.2"
       }
     },
     "yargs-parser": {
       "version": "13.1.2",
       "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-13.1.2.tgz",
       "integrity": "sha512-3lbsNRf/j+A4QuSZfDRA7HRSfWrzO0YjqTJd5kjAq37Zep1CEgaYmrH9Q3GwPiB9cHyd1Y1UwggGhJGoxipbzg==",
       "requires": {
         "camelcase": "^5.0.0",
         "decamelize": "^1.2.0"
       }
     }
   }
 }

modified package.json

@@ -31,12 +31,20 @@

     "@gnosis.pm/safe-service-client": "^0.1.0-alpha.0",
     "@stardazed/streams": "^3.1.0",
     "@types/marked": "^2.0.3",
     "@ethersproject/abstract-provider": "^5.4.0",
     "@walletconnect/client": "^1.4.2-rc.2",
     "@walletconnect/signer-connection": "^1.4.2-rc.2",
     "@walletconnect/types": "^1.4.2-rc.2",
     "@walletconnect/utils": "^1.4.2-rc.2",
     "buffer": "^6.0.3",
     "ethereum-blockies": "^0.1.1",
     "eventemitter3": "4.0.7",
     "eip1193-provider": "1.0.1",
     "ethers": "^5.0.31",
     "marked": "^2.0.7",
     "multibase": "^4.0.4",
     "multihashes": "^4.0.2",
     "pure-svg-code": "^1.0.6",
     "svelte": "^3.32.3",
     "svelte-preprocess": "^4.7.2",
     "svelte-routing": "^1.6.0"

modified src/App.svelte

@@ -15,9 +15,15 @@

   import Loading from '@app/Loading.svelte';
   import Modal from '@app/Modal.svelte';
   const loadConfig = getConfig().then(cfg => {
   const loadConfig = getConfig().then(async cfg => {
     if ($state.connection === Connection.Connected) {
       state.refreshBalance(cfg);
     } else if ($state.connection === Connection.Disconnected) {
       // Update the session state if we're already connected to WalletConnect
       // from a previous session.
       if (cfg.walletConnect.client.connected) {
         await state.connectWalletConnect(cfg);
       }
     }
     return cfg;
   });

modified src/Connect.svelte

@@ -1,23 +1,42 @@

 <script lang="ts">
   import { Connection } from "@app/session";
   import { state } from '@app/session';
   import { get } from "svelte/store";
   import { Connection, state } from "@app/session";
   import type { Err } from '@app/error';
   import Error from '@app/Error.svelte';
   import type { Config } from '@app/config';
   import ConnectWallet from "@app/components/Modal/ConnectWallet.svelte";
   export let config: Config;
   export let caption = "Connect";
   export let className = "";
   export let style = "";
   export let config: Config;
   let walletUnavailable = !window.ethereum;
   let error: Err | null = null;
   const onModalClose = () => {
     const wcs = get(config.walletConnect.state);
     if (wcs.state === "open") {
       config.walletConnect.state.set({ state: "close" });
       wcs.onClose();
     }
   };
   const onConnect = async () => {
     try {
       await state.connectWalletConnect(config);
     } catch (e) {
       walletConnectState.set({ state: "close" });
       error = e;
     }
   };
   $: connecting = $state.connection === Connection.Connecting;
   $: walletConnectState = config.walletConnect.state;
 </script>
 <style>
 </style>
 <button
   on:click={() => state.connect(config)}
   on:click|stopPropagation={onConnect}
   {style}
   class="connect {className}"
   disabled={connecting || walletUnavailable}

@@ -29,3 +48,11 @@

     {caption}
   {/if}
 </button>
 {#if $walletConnectState.state === "open"}
   <ConnectWallet {config} uri={$walletConnectState.uri} on:close={onModalClose} />
 {:else if error}
   <Error floating title="Wallet connection failed" {error}
          on:close={() => error = null} />
 {/if}

modified src/Header.svelte

@@ -148,7 +148,7 @@

       </span>
       <button class="address outline small" bind:this={sessionButton}
         on:click={disconnectWallet}
         on:click={() => disconnectWallet(config)}
         on:mouseover={() => sessionButtonHover = true}
         on:mouseout={() => sessionButtonHover = false}
       >

modified src/Modal.svelte

@@ -4,6 +4,7 @@

   export let subtle = false;
   export let small = false;
   export let narrow = false;
   export let center = false;
 </script>
 <style>

@@ -96,7 +97,7 @@

   <div class="modal-overlay"></div>
 {/if}
 <div class:modal-floating={floating} class="centered">
 <div class:modal-floating={floating} class:centered={!center}>
   <div class="modal" class:error
        class:modal-subtle={subtle}
        class:modal-narrow={narrow}

added src/WalletConnectSigner.ts

@@ -0,0 +1,131 @@

 import type WalletConnect from "@walletconnect/client";
 import * as ethers from "ethers";
 import * as ethersBytes from "@ethersproject/bytes";
 import type { TransactionRequest, TransactionResponse } from "@ethersproject/abstract-provider";
 import { Deferrable, resolveProperties } from "@ethersproject/properties";
 import { _TypedDataEncoder } from "ethers/lib/utils";
 import type { TypedDataDomain, TypedDataField } from "@ethersproject/abstract-signer";
 export class WalletConnectSigner extends ethers.Signer {
   public walletConnect: WalletConnect;
   public readonly provider: ethers.providers.JsonRpcProvider;
   constructor(
     walletConnect: WalletConnect,
     provider: ethers.providers.JsonRpcProvider,
   ) {
     super();
     this.provider = provider;
     this.walletConnect = walletConnect;
   }
   async getAddress(): Promise<string> {
     const accountAddress = this.walletConnect.accounts[0];
     if (!accountAddress) {
       throw new Error(
         "The connected wallet has no accounts or there is a connection problem"
       );
     }
     return accountAddress;
   }
   async _signTypedData(domain: TypedDataDomain, types: Record<string, Array<TypedDataField>>, value: Record<string, any>): Promise<string> {
     // Populate any ENS names (in-place)
     const populated = await _TypedDataEncoder.resolveNames(domain, types, value, (name: string) => {
       return this.provider.resolveName(name);
     });
     const address = await this.getAddress();
     const signature = await this.walletConnect.signTypedData([
       address.toLowerCase(),
       JSON.stringify(_TypedDataEncoder.getPayload(populated.domain, types, populated.value)),
     ]);
     return signature;
   }
   async signMessage(message: ethers.Bytes | string): Promise<string> {
     const prefix = ethers.utils.toUtf8Bytes(
       `\x19Ethereum Signed Message:\n${message.length}`
     );
     const msg = ethers.utils.concat([prefix, message]);
     const address = await this.getAddress();
     const keccakMessage = ethers.utils.keccak256(msg);
     const signature = await this.walletConnect.signMessage([
       address.toLowerCase(),
       keccakMessage,
     ]);
     return signature;
   }
   async sendTransaction(
     transaction: Deferrable<TransactionRequest>
   ): Promise<TransactionResponse> {
     const tx = await resolveProperties(transaction);
     const from = tx.from || (await this.getAddress());
     const txHash = await this.walletConnect.sendTransaction({
       from,
       to: tx.to,
       value: maybeBigNumberToString(tx.value),
       data: bytesLikeToString(tx.data),
     });
     return <TransactionResponse>{
       hash: txHash,
       nonce: tx.nonce,
       gasLimit: tx.gasLimit,
       gasPrice: tx.gasPrice,
       data: bytesLikeToString(tx.data) || "",
       value: tx.value,
       chainId: tx.chainId,
       confirmations: 0,
       from: from,
       wait: (confirmations?: number) => {
         return this.provider?.waitForTransaction(txHash, confirmations);
       }
     };
   }
   async signTransaction(
     transaction: Deferrable<TransactionRequest>
   ): Promise<string> {
     const tx = await resolveProperties(transaction);
     const from = tx.from || (await this.getAddress());
     const nonce = await this.provider.getTransactionCount(from);
     const signedTx = await this.walletConnect.signTransaction({
       from,
       to: tx.to,
       value: maybeBigNumberToString(tx.value || 0),
       gasLimit: maybeBigNumberToString(tx.gasLimit || 200 * 1000),
       gasPrice: maybeBigNumberToString(tx.gasPrice || 0),
       nonce,
       data: bytesLikeToString(tx.data),
     });
     return signedTx;
   }
   connect(): ethers.Signer {
     throw new Error("WalletConnectSigner.connect should never be called");
   }
 }
 function maybeBigNumberToString(
   bn: ethers.BigNumberish | undefined
 ): string | undefined {
   if (bn === undefined) {
     return undefined;
   } else {
     return ethers.BigNumber.from(bn).toString();
   }
 }
 function bytesLikeToString(
   bytes: ethersBytes.BytesLike | undefined
 ): string | undefined {
   if (bytes === undefined) {
     return undefined;
   } else {
     return ethersBytes.hexlify(bytes);
   }
 }

modified src/base/registrations/registrar.ts

@@ -1,4 +1,3 @@

 // TODO: Show "look at your wallet" / "confirm tx" before state change.
 import { ethers } from 'ethers';
 import { writable } from 'svelte/store';
 import type { BigNumber } from 'ethers';

@@ -99,7 +98,7 @@ export async function registrationFee(config: Config): Promise<BigNumber> {

 }
 export async function registerName(name: string, owner: string, config: Config): Promise<void> {
   assert(config.signer);
   assert(config.signer, "signer is not available");
   if (! name) return;

@@ -144,7 +143,7 @@ async function commitAndRegister(name: string, owner: string, config: Config): P

 }
 async function commit(commitment: string, fee: BigNumber, minAge: number, config: Config): Promise<void> {
   assert(config.signer);
   assert(config.signer, "signer is not available");
   const owner = config.signer;
   const ownerAddr = await owner.getAddress();

@@ -187,8 +186,7 @@ async function permitSignature(

   value: ethers.BigNumberish,
   deadline: ethers.BigNumberish,
 ): Promise<ethers.Signature> {
   assert(owner.provider);
   assert(owner.provider, "provider is not available");
   state.set({ connection: State.SigningPermit });
   const ownerAddr = await owner.getAddress();

@@ -222,7 +220,7 @@ async function permitSignature(

 }
 async function register(name: string, owner: string, salt: Uint8Array, config: Config) {
   assert(config.signer);
   assert(config.signer, "signer is not available");
   state.set({ connection: State.SigningRegister });
   const tx = await registrar(config).connect(config.signer).register(

@@ -233,7 +231,7 @@ async function register(name: string, owner: string, salt: Uint8Array, config: C

   console.log("Sent", tx);
   await tx.wait();
   window.localStorage.clear();
   window.localStorage.removeItem("commitment");
   state.set({ connection: State.Registered });
 }

added src/components/Modal/ConnectWallet.svelte

@@ -0,0 +1,79 @@

 <script lang="ts">
   import { createEventDispatcher } from "svelte";
   import { qrcode } from "pure-svg-code";
   import Modal from "@app/Modal.svelte";
   import { state } from "@app/session";
   import type { Config } from "@app/config";
   export let uri: string;
   export let config: Config;
   $: svgString = qrcode({
     content: uri,
     width: 200,
     height: 200,
     color: "black",
     padding: 0,
     background: "white",
     ecl: "M",
   });
   const dispatch = createEventDispatcher();
   const onClickConnect = () => { state.connectMetamask(config); };
   const onClose = () => { dispatch("close"); };
 </script>
 <style>
   .qrcode-wrapper {
     width: min-content;
     margin: 0 auto;
     padding: 0.75rem;
     background-color: white;
   }
   .qrcode {
     width: 200px;
     height: 200px;
   }
   .wrapper {
     cursor: default;
     display: flex;
     flex-direction: column;
     height: 100%;
   }
 </style>
 <div class="wrapper">
   <Modal floating center>
     <div slot="title">
       <div>👛</div>
       <div>Connect your wallet</div>
     </div>
     <div slot="subtitle">
       <div class="text-small">
         WalletConnect<br/>
         <a href="https://walletconnect.org/wallets" class="link">
           View compatible wallets
         </a>
       </div>
     </div>
     <div slot="body">
       <div class="qrcode-wrapper">
         <div class="qrcode">
           {@html svgString}
         </div>
       </div>
     </div>
     <div slot="actions">
       <button class="secondary tiny text-small" on:click={onClickConnect} disabled={!config.metamaskSigner}>
         Connect with Metamask
       </button>
       <button class="text tiny text-small" on:click={onClose}>
         Close
       </button>
     </div>
   </Modal>
 </div>

modified src/config.json

@@ -48,6 +48,7 @@

     "tokens": []
   },
   "alchemy": { "key": "cQFlLK8EokIGlJhd_soImwEyUoC7Ec8r" },
   "walletConnect": { "bridge": "https://radicle.bridge.walletconnect.org" },
   "ceramic": { "api": "https://ceramic-clay.3boxlabs.com" },
   "radicle": { "api": "http://0.0.0.0:8888" },
   "ipfs": { "gateway": "https://ipfs.io/ipfs/" },

modified src/config.ts

@@ -1,9 +1,13 @@

 import { writable } from "svelte/store";
 import type { Writable } from "svelte/store";
 import { ethers } from "ethers";
 import type { TypedDataSigner } from '@ethersproject/abstract-signer';
 import SafeServiceClient from "@gnosis.pm/safe-service-client";
 import CeramicClient from "@ceramicnetwork/http-client";
 import { IDX } from "@ceramicstudio/idx";
 import WalletConnect from "@walletconnect/client";
 import config from "@app/config.json";
 import { WalletConnectSigner } from "./WalletConnectSigner";
 declare global {
   interface Window {

@@ -12,6 +16,15 @@ declare global {

   }
 }
 /// Gas limits for various transactions.
 const gasLimits = {
   createOrg: 1_200_000,
 };
 export type WalletConnectState =
     { state: "close" }
   | { state: "open"; uri: string; onClose: any };
 export class Config {
   network: { name: string; chainId: number };
   registrar: { address: string; domain: string };

@@ -21,7 +34,14 @@ export class Config {

   orgs: { subgraph: string; contractHash: string };
   gasLimits: { createOrg: number };
   provider: ethers.providers.JsonRpcProvider;
   signer: ethers.Signer & TypedDataSigner | null;
   signer: ethers.Signer & TypedDataSigner | WalletConnectSigner | null;
   walletConnect: {
     client: WalletConnect;
     bridge: string;
     signer: WalletConnectSigner;
     state: Writable<WalletConnectState>;
   };
   metamaskSigner: ethers.Signer & TypedDataSigner | null;
   safe: {
     api?: string;
     client?: SafeServiceClient;

@@ -36,29 +56,31 @@ export class Config {

   constructor(
     network: { name: string; chainId: number },
     provider: ethers.providers.JsonRpcProvider | null,
     signer: ethers.Signer & TypedDataSigner | null,
     provider: ethers.providers.JsonRpcProvider,
     metamaskSigner: ethers.Signer & TypedDataSigner | null,
   ) {
     const cfg = (<Record<string, any>> config)[network.name];
     const api = config.radicle.api;
     if (! cfg) {
       throw `Network ${network.name} is not supported`;
     }
     // Use Alchemy in production, on mainnet.
     provider = network.name === "homestead" && import.meta.env.PROD
       ? new ethers.providers.AlchemyProvider(network.name, config.alchemy.key)
       : provider;
     if (! provider) {
       throw `No Web3 provider available.`;
     }
     const cfg = (<Record<string, any>> config)[network.name];
     const ceramic = new CeramicClient(config.ceramic.api);
     const idx = new IDX({ ceramic });
     const walletConnectState = writable<WalletConnectState>(
       { state: "close" }
     );
     const wc = Config.initializeWalletConnect(
       config.walletConnect.bridge,
       walletConnectState,
       provider
     );
     this.network = network;
     this.metamaskSigner = metamaskSigner;
     this.walletConnect = {
       bridge: config.walletConnect.bridge,
       client: wc.connector,
       signer: wc.signer,
       state: walletConnectState,
     };
     this.seed = { api };
     this.registrar = cfg.registrar;
     this.radToken = cfg.radToken;

@@ -70,7 +92,7 @@ export class Config {

       ? new SafeServiceClient(this.safe.api)
       : undefined;
     this.provider = provider;
     this.signer = signer;
     this.signer = null;
     this.gasLimits = gasLimits;
     this.abi = config.abi;
     this.idx = { client: idx };

@@ -83,6 +105,10 @@ export class Config {

     );
   }
   setSigner(signer: ethers.Signer & TypedDataSigner | WalletConnectSigner): void {
     this.signer = signer;
   }
   // Return the config with an overwritten seed URL.
   withSeed(seed: string): Config {
     const cfg = {} as Config;

@@ -91,31 +117,109 @@ export class Config {

     return cfg;
   }
 }
 /// Gas limits for various transactions.
 const gasLimits = {
   createOrg: 1_200_000,
 };
   getWalletConnectSigner(): WalletConnectSigner {
     if (this.walletConnect.client.connected) {
       this.setSigner(this.walletConnect.signer);
       return this.walletConnect.signer;
     }
     const wc = Config.initializeWalletConnect(
       this.walletConnect.bridge,
       this.walletConnect.state,
       this.provider
     );
     this.walletConnect.client = wc.connector;
     this.walletConnect.signer = wc.signer;
     this.setSigner(wc.signer);
     return wc.signer;
   }
   static initializeWalletConnect(
     bridge: string,
     state: Writable<WalletConnectState>,
     provider: ethers.providers.JsonRpcProvider
   ): {
     connector: WalletConnect;
     signer: WalletConnectSigner;
   } {
     const walletConnect = new WalletConnect({
       bridge: config.walletConnect.bridge,
       qrcodeModal: {
         open: (uri: string, onClose) => {
           state.set({ state: "open", uri, onClose });
         },
         close: () => {
           state.set({ state: "close" });
         }
       },
       clientMeta: {
         name: "Radicle",
         description: "Radicle Interface",
         url: window.location.host,
         icons: [
           `${window.location.protocol}//${window.location.host}/favicon.ico`,
           `${window.location.protocol}//${window.location.host}/favicon.svg`
         ],
       }
     });
     walletConnect.on("modal_closed", () => {
       state.set({ state: "close" });
     });
     const walletConnectSigner = new WalletConnectSigner(walletConnect, provider);
     return {
       connector: walletConnect,
       signer: walletConnectSigner,
     };
   }
 }
 function isMetamaskInstalled(): boolean {
   const { ethereum } = window;
   return Boolean(ethereum && ethereum.isMetaMask);
 }
 function getProvider(
   network: { name: string },
   config: Record<string, any>,
   metamask: ethers.providers.JsonRpcProvider | null,
 ): ethers.providers.JsonRpcProvider {
   // Use Alchemy in production, on mainnet. Otherwise use Metamask if installed.
   if (network.name === "homestead" && import.meta.env.PROD) {
     return new ethers.providers.AlchemyProvider(network.name, config.alchemy.key);
   } else if (metamask) {
     return metamask;
   } else {
     throw new Error("No Web3 provider available.");
   }
 }
 export async function getConfig(): Promise<Config> {
   let config: Config;
   const metamask = isMetamaskInstalled()
     ? new ethers.providers.Web3Provider(window.ethereum)
     : null;
   const metamaskSigner = metamask?.getSigner() || null;
   if (isMetamaskInstalled()) {
     const metamask = new ethers.providers.Web3Provider(window.ethereum);
     const network = await metamask.ready;
     config = new Config(network, metamask, metamask.getSigner());
   } else {
     // If we don't have Metamask, we default to Homestead.
     const network = { name: "homestead", chainId: 1 };
     config = new Config(network, null, null);
   let network = { name: "homestead", chainId: 1 };
   if (metamask) {
     // If Metamask is detected, we use the network configured there.
     network = await metamask.ready;
   }
   console.log(config);
   return config;
   const networkConfig = (<Record<string, any>> config)[network.name];
   if (! networkConfig) {
     throw new Error(`Network ${network.name} is not supported`);
   }
   const provider = getProvider(network, networkConfig, metamask);
   const cfg = new Config(
     network,
     provider,
     metamaskSigner,
   );
   console.log(cfg, "config");
   return cfg;
 }

added src/polyfills/enc-utils.js

@@ -0,0 +1,73 @@

 /* eslint-disable @typescript-eslint/naming-convention */
 /* eslint-disable @typescript-eslint/no-var-requires */
 "use strict";
 var Buffer = require("buffer/").Buffer;
 var typedarrayToBuffer = require("typedarray-to-buffer");
 const ENC_UTF8 = 'utf8';
 const ENC_HEX = 'hex';
 function bufferToArray(buf) {
   return new Uint8Array(buf);
 }
 exports.bufferToArray = bufferToArray;
 function bufferToUtf8(buf) {
   return buf.toString(ENC_UTF8);
 }
 exports.bufferToUtf8 = bufferToUtf8;
 function bufferToHex(buf, prefixed = false) {
   const hex = buf.toString(ENC_HEX);
   return prefixed ? addHexPrefix(hex) : hex;
 }
 exports.bufferToHex = bufferToHex;
 function utf8ToBuffer(utf8) {
   return Buffer.from(utf8, ENC_UTF8);
 }
 exports.utf8ToBuffer = utf8ToBuffer;
 function utf8ToArray(utf8) {
   return bufferToArray(utf8ToBuffer(utf8));
 }
 exports.utf8ToArray = utf8ToArray;
 function hexToArray(hex) {
   return bufferToArray(hexToBuffer(hex));
 }
 exports.hexToArray = hexToArray;
 function hexToBuffer(hex) {
   return Buffer.from(removeHexPrefix(hex), ENC_HEX);
 }
 exports.hexToBuffer = hexToBuffer;
 function removeHexPrefix(hex) {
   return hex.replace(/^0x/, '');
 }
 exports.removeHexPrefix = removeHexPrefix;
 function addHexPrefix(hex) {
   return hex.startsWith('0x') ? hex : `0x${hex}`;
 }
 exports.addHexPrefix = addHexPrefix;
 function arrayToBuffer(arr) {
   return typedarrayToBuffer(arr);
 }
 exports.arrayToBuffer = arrayToBuffer;
 function arrayToHex(arr, prefixed = false) {
   return bufferToHex(arrayToBuffer(arr), prefixed);
 }
 exports.arrayToHex = arrayToHex;
 function concatArrays(...args) {
   let result = [];
   args.forEach(arg => (result = result.concat(Array.from(arg))));
   return new Uint8Array([...result]);
 }
 exports.concatArrays = concatArrays;

added src/polyfills/typedarray-to-buffer.js

@@ -0,0 +1,17 @@

 /* eslint-disable @typescript-eslint/naming-convention */
 /* eslint-disable @typescript-eslint/no-var-requires */
 var isTypedArray = require('is-typedarray').strict;
 var Buffer = require('buffer/').Buffer;
 module.exports = function typedarrayToBuffer(arr) {
   if (isTypedArray(arr)) {
     var buf = Buffer.from(arr.buffer);
     if (arr.byteLength !== arr.buffer.byteLength) {
       buf = buf.slice(arr.byteOffset, arr.byteOffset + arr.byteLength);
     }
     return buf;
   } else {
     return Buffer.from(arr);
   }
 };

modified src/session.ts

@@ -3,6 +3,7 @@ import type { BigNumber } from 'ethers';

 import type { TransactionReceipt, TransactionResponse } from '@ethersproject/providers';
 import { Config, getConfig } from "@app/config";
 import { Unreachable, assert, assertEq } from "@app/error";
 import * as ethers from "ethers";
 export enum Connection {
   Disconnected,

@@ -29,10 +30,10 @@ export interface Session {

 }
 export interface Store extends Readable<State> {
   connect(config: Config): Promise<void>;
   connectMetamask(config: Config): Promise<void>;
   connectWalletConnect(config: Config): Promise<void>;
   updateBalance(n: BigNumber): void;
   refreshBalance(config: Config): Promise<void>;
   setTxSigning(): void;
   setTxPending(tx: TransactionResponse): void;
   setTxConfirmed(tx: TransactionReceipt): void;

@@ -41,42 +42,80 @@ export interface Store extends Readable<State> {

 export const loadState = (initial: State): Store => {
   const store = writable<State>(initial);
   const session = window.localStorage.getItem("session");
   const metamask = window.localStorage.getItem("metamask");
   if (session) store.set({ connection: Connection.Connected, session: JSON.parse(session) });
   if (metamask) {
     store.set({ connection: Connection.Connected, session: JSON.parse(metamask) });
   }
   return {
     subscribe: store.subscribe,
     connect: async (config: Config) => {
       assert(config.signer);
     connectMetamask: async (config: Config) => {
       assert(config.metamaskSigner);
       const state = get(store);
       assertEq(state.connection, Connection.Disconnected);
       assertEq(state.connection, Connection.Disconnected || Connection.Connecting);
       store.set({ connection: Connection.Connecting });
       // TODO: This hangs on Brave, if you have to unlock your wallet..
       try {
         await window.ethereum.request({ method: 'eth_requestAccounts' });
       } catch (e) {
         console.error(e);
       }
       await window.ethereum.request({ method: 'eth_requestAccounts' });
       const signer = config.signer;
       const signer = config.metamaskSigner;
       const address = await signer.getAddress();
       config.setSigner(signer);
       try {
         config.walletConnect.state.set({ state: "close" });
         const tokenBalance: BigNumber = await config.token.balanceOf(address);
         const session = { address, tokenBalance, tx: null };
         store.set({
           connection: Connection.Connected,
           session,
         });
         saveSession({ ...session, tokenBalance: null });
         saveSession({ ...session });
       } catch (e) {
         console.error(e);
       }
     },
     connectWalletConnect: async (config: Config) => {
       store.set({ connection: Connection.Connecting });
       const signer = config.getWalletConnectSigner();
       try {
         await config.walletConnect.client.connect();
         const address = await signer.getAddress();
         const tokenBalance: BigNumber = await config.token.balanceOf(address);
         const session = { address, tokenBalance, tx: null };
         const network = await ethers.providers.getNetwork(
           signer.walletConnect.chainId
         );
         if (network.chainId !== config.network.chainId) {
           config.walletConnect.client.killSession();
           throw new Error(
             `Network mismatch. Please switch to ${config.network.name}.`
           );
         }
         store.set({ connection: Connection.Connected, session });
       } catch (e) {
         store.set({ connection: Connection.Disconnected });
         // There seems to be no way to detect this "error" caused by the user
         // closing the modal dialog, besides matching on the message string.
         // Welcome to the wonderful ghetto that is WalletConnect.
         //
         // Since it's not really an error, we don't throw if this is what happened.
         if (e.message !== "User close QRCode Modal") {
           throw e;
         }
       }
     },
     updateBalance: (n: BigNumber) => {
       store.update((s: State) => {
         assert(s.connection === Connection.Connected);

@@ -168,7 +207,7 @@ export const loadState = (initial: State): Store => {

             // In case of locking Metamask the accountsChanged event returns undefined.
             // To prevent out of sync state, the wallet gets disconnected.
             if (address === undefined) {
               disconnectWallet();
               disconnectMetamask();
             } else {
               s.session.address = address;
               saveSession(s.session);

@@ -178,11 +217,12 @@ export const loadState = (initial: State): Store => {

             return s;
         }
       });
     }
     },
   };
 };
 export const state = loadState({ connection: Connection.Disconnected });
 export const session = derived(state, s => {
   if (s.connection === Connection.Connected) {
     return s.session;

@@ -193,7 +233,7 @@ export const session = derived(state, s => {

 window.ethereum?.on('chainChanged', () => {
   // We disconnect the wallet to avoid out of sync state
   // between the account address and IDX DIDs
   disconnectWallet();
   disconnectMetamask();
   location.reload();
 });

@@ -222,13 +262,20 @@ export async function approveSpender(spender: string, amount: BigNumber, config:

   }
 }
 export function disconnectWallet(): void {
   window.localStorage.removeItem("session");
   location.reload();
 export function disconnectMetamask(): void {
   window.localStorage.removeItem('metamask');
   window.location.reload();
 }
 export function disconnectWallet(config: Config): void {
   if (config.walletConnect.client.connected) {
     config.walletConnect.client.killSession();
   }
   disconnectMetamask();
 }
 function saveSession(session: Session): void {
   window.localStorage.setItem("session", JSON.stringify({
   window.localStorage.setItem("metamask", JSON.stringify({
     ...session, tokenBalance: null
   }));
 }

modified vite.config.ts

@@ -1,26 +1,28 @@

 import path from "path";
 import { UserConfig } from "vite";
 import svelte from "@sveltejs/vite-plugin-svelte";
 import rewriteAll from "vite-plugin-rewrite-all";
 import path from 'path';
 import { UserConfig } from 'vite';
 import svelte from '@sveltejs/vite-plugin-svelte';
 import rewriteAll from 'vite-plugin-rewrite-all';
 const config: UserConfig = {
   optimizeDeps: {
     exclude: ['svelte-routing']
     exclude: ['svelte-routing', '@pedrouid/environment', '@pedrouid/iso-crypto']
   },
   plugins: [svelte(), rewriteAll()],
   resolve: {
     alias: {
       "@app": path.resolve("./src"),
       // Polyfill for Node.js "stream" library.
       "stream": path.resolve("./src/polyfills/stream.ts"),
       '@app': path.resolve('./src'),
       // Polyfill for Node.js 'stream' library.
       'stream': path.resolve('./src/polyfills/stream.ts'),
       'typedarray-to-buffer': path.resolve('./src/polyfills/typedarray-to-buffer.js'),
       'enc-utils': path.resolve('./src/polyfills/enc-utils.js'),
     },
   },
   define: {
     // eslint-disable-next-line @typescript-eslint/naming-convention
     "process.env": { READABLE_STREAM: "disable" }
     'process.env': { READABLE_STREAM: 'disable' }
   },
   build: {
     outDir: "build",
     outDir: 'build',
     sourcemap: true
   }
 };