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Improve typing on getHash

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This commit is contained in:
Ajay
2022-02-06 20:01:19 -05:00
parent 816e9a78be
commit 0b6ade4a1d
2 changed files with 7 additions and 5 deletions
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2
src/types.ts
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@@ -31,6 +31,8 @@ export interface FetchResponse {
ok: boolean ok: boolean
} }
export type HashedValue = string & { __hashBrand: unknown };
export interface VideoDurationResponse { export interface VideoDurationResponse {
duration: number; duration: number;
} }

10
src/utils.ts
View File

@@ -1,5 +1,5 @@
import Config from "./config"; import Config from "./config";
import { CategorySelection, SponsorTime, FetchResponse, BackgroundScriptContainer, Registration } from "./types"; import { CategorySelection, SponsorTime, FetchResponse, BackgroundScriptContainer, Registration, HashedValue } from "./types";
import * as CompileConfig from "../config.json"; import * as CompileConfig from "../config.json";
import { findValidElementFromSelector } from "./utils/pageUtils"; import { findValidElementFromSelector } from "./utils/pageUtils";
@@ -475,10 +475,10 @@ export default class Utils {
return typeof(browser) !== "undefined"; return typeof(browser) !== "undefined";
} }
async getHash(value: string, times = 5000): Promise<string> { async getHash<T extends string>(value: T, times = 5000): Promise<T & HashedValue> {
if (times <= 0) return ""; if (times <= 0) return "" as T & HashedValue;
let hashHex = value; let hashHex: string = value;
for (let i = 0; i < times; i++) { for (let i = 0; i < times; i++) {
const hashBuffer = await crypto.subtle.digest('SHA-256', new TextEncoder().encode(hashHex).buffer); const hashBuffer = await crypto.subtle.digest('SHA-256', new TextEncoder().encode(hashHex).buffer);
@@ -486,6 +486,6 @@ export default class Utils {
hashHex = hashArray.map(b => b.toString(16).padStart(2, '0')).join(''); hashHex = hashArray.map(b => b.toString(16).padStart(2, '0')).join('');
} }
return hashHex; return hashHex as T & HashedValue;
} }
} }