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136
app/scripts/lib/offscreen-bridge/trezor-offscreen-bridge.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,136 @@ | ||
| import { TrezorBridge } from '@metamask/eth-trezor-keyring'; | ||
| import type { | ||
| EthereumSignMessage, | ||
| EthereumSignTransaction, | ||
| Params, | ||
| EthereumSignTypedDataTypes, | ||
| ConnectSettings, | ||
| Manifest, | ||
| Response as TrezorResponse, | ||
| EthereumSignedTx, | ||
| PROTO, | ||
| EthereumSignTypedHash, | ||
| } from '@trezor/connect-web'; | ||
| import { | ||
| OffscreenCommunicationEvents, | ||
| OffscreenCommunicationTarget, | ||
| TrezorAction, | ||
| } from '../../../../shared/constants/offscreen-communication'; | ||
|
|
||
| /** | ||
| * This class is used as a custom bridge for the Trezor connection. Every | ||
| * hardware wallet keyring also requires a bridge that has a known interface | ||
| * that the keyring can call into for specific functions. The bridge then makes | ||
| * whatever calls or requests it needs to in order to fulfill the request from | ||
| * the keyring. In this case, the bridge is used to communicate with the | ||
| * Offscreen Document. Inside the Offscreen document the trezor-iframe is | ||
| * embedded that will listen for these calls and communicate with the | ||
| * trezor/connect-web library. | ||
| */ | ||
| export class TrezorOffscreenBridge implements TrezorBridge { | ||
| model: string | undefined; | ||
|
|
||
| init( | ||
| settings: { | ||
| manifest: Manifest; | ||
| } & Partial<ConnectSettings>, | ||
| ) { | ||
| chrome.runtime.onMessage.addListener((msg) => { | ||
| if ( | ||
| msg.target === OffscreenCommunicationTarget.extension && | ||
| msg.event === OffscreenCommunicationEvents.trezorDeviceConnect | ||
| ) { | ||
| this.model = msg.payload; | ||
| } | ||
| }); | ||
|
|
||
| return new Promise<void>((resolve) => { | ||
| chrome.runtime.sendMessage( | ||
| { | ||
| target: OffscreenCommunicationTarget.trezorOffscreen, | ||
| action: TrezorAction.init, | ||
| params: settings, | ||
| }, | ||
| () => { | ||
| resolve(); | ||
| }, | ||
| ); | ||
| }); | ||
| } | ||
|
|
||
| dispose() { | ||
| return new Promise<void>((resolve) => { | ||
| chrome.runtime.sendMessage( | ||
| { | ||
| target: OffscreenCommunicationTarget.trezorOffscreen, | ||
| action: TrezorAction.dispose, | ||
| }, | ||
| () => { | ||
| resolve(); | ||
| }, | ||
| ); | ||
| }); | ||
| } | ||
|
|
||
| getPublicKey(params: { path: string; coin: string }) { | ||
| return new Promise((resolve) => { | ||
| chrome.runtime.sendMessage( | ||
| { | ||
| target: OffscreenCommunicationTarget.trezorOffscreen, | ||
| action: TrezorAction.getPublicKey, | ||
| params, | ||
| }, | ||
| (response) => { | ||
| resolve(response); | ||
| }, | ||
| ); | ||
| }) as TrezorResponse<{ publicKey: string; chainCode: string }>; | ||
| } | ||
|
|
||
| ethereumSignTransaction(params: Params<EthereumSignTransaction>) { | ||
| return new Promise((resolve) => { | ||
| chrome.runtime.sendMessage( | ||
| { | ||
| target: OffscreenCommunicationTarget.trezorOffscreen, | ||
| action: TrezorAction.signTransaction, | ||
| params, | ||
| }, | ||
| (response) => { | ||
| resolve(response); | ||
| }, | ||
| ); | ||
| }) as TrezorResponse<EthereumSignedTx>; | ||
| } | ||
|
|
||
| ethereumSignMessage(params: Params<EthereumSignMessage>) { | ||
| return new Promise((resolve) => { | ||
| chrome.runtime.sendMessage( | ||
| { | ||
| target: OffscreenCommunicationTarget.trezorOffscreen, | ||
| action: TrezorAction.signMessage, | ||
| params, | ||
| }, | ||
| (response) => { | ||
| resolve(response); | ||
| }, | ||
| ); | ||
| }) as TrezorResponse<PROTO.MessageSignature>; | ||
| } | ||
|
|
||
| ethereumSignTypedData<T extends EthereumSignTypedDataTypes>( | ||
| params: Params<EthereumSignTypedHash<T>>, | ||
| ) { | ||
| return new Promise((resolve) => { | ||
| chrome.runtime.sendMessage( | ||
| { | ||
| target: OffscreenCommunicationTarget.trezorOffscreen, | ||
| action: TrezorAction.signTypedData, | ||
| params, | ||
| }, | ||
| (response) => { | ||
| resolve(response); | ||
| }, | ||
| ); | ||
| }) as TrezorResponse<PROTO.EthereumTypedDataSignature>; | ||
| } | ||
| } |
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