commit 541f68cfff83b44d9094fa20d48c75842b1cf497 · dunkirk.sh/cachet

+28 -30

src/slackWrapper.ts

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       import { createHmac, timingSafeEqual } from "node:crypto";

     

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       import type {

     

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         SlackEmojiListResponse,

     

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         SlackUser,

     

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         SlackUserInfoResponse,

     

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       } from "./slack";

     

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       import Bottleneck from "bottleneck";

     

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       /**

     

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        * Interface for mapping emoji names to their URLs

     

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        */

     

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       interface SlackEmoji {

     

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         [key: string]: string;

     

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       }

     

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       /**

     

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        * Configuration options for initializing the SlackWrapper

     
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          * @throws Error if authentication fails

     

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          */

     

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         async testAuth(): Promise<boolean> {

     

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           const response = await fetch("https://slack.com/api/auth.test", {

     

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             headers: {

     

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               Authorization: `Bearer ${this.botToken}`,

     

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               "Content-Type": "application/json",

     

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             },

     

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           });

     

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           const data = await response.json();

     

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           if (!data.ok) {

     

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             throw new Error(`Authentication failed: ${data.error}`);

     

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           }

     
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          * @throws Error if the API request fails

     

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          */

     

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         async getUserInfo(userId: string): Promise<SlackUser> {

     

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           const response = await fetch(

     

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             `https://slack.com/api/users.info?user=${userId}`,

     

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             {

     

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               method: "POST",

     

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               headers: {

     

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                 Authorization: `Bearer ${this.botToken}`,

     

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                 "Content-Type": "application/json",

     

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               },

     

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               body: JSON.stringify({ user: userId }),

     

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             },

     

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           );

     

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           const data: SlackUserInfoResponse = await response.json();

     

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           if ((!data.ok && data.error !== "user_not_found") || !data.user) {

     

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             throw new Error(data.error);

     

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           }

     
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          * @throws Error if the API request fails

     

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          */

     

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         async getEmojiList(): Promise<Record<string, string>> {

     

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           const response = await fetch("https://slack.com/api/emoji.list", {

     

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             headers: {

     

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               Authorization: `Bearer ${this.botToken}`,

     

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               "Content-Type": "application/json",

     

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             },

     

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           });

     

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           const data: SlackEmojiListResponse = await response.json();

     

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           if (!data.ok || !data.emoji) {

     

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             throw new Error(`Failed to get emoji list: ${data.error}`);

     

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           }

     
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           const hmac = createHmac("sha256", this.signingSecret);

     

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           const computedSignature = `v0=${hmac.update(baseString).digest("hex")}`;

     

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           return timingSafeEqual(

     

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             Buffer.from(signature).valueOf() as Uint8Array,

     

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             Buffer.from(computedSignature).valueOf() as Uint8Array,

     

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           );

     

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         }

     

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       }

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       import { createHmac, timingSafeEqual } from "node:crypto";

     

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       import Bottleneck from "bottleneck";

     

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       import type {

     

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         SlackEmojiListResponse,

     

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         SlackUser,

     

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         SlackUserInfoResponse,

     

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       } from "./slack";

     

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       /**

     

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        * Configuration options for initializing the SlackWrapper

     
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          * @throws Error if authentication fails

     

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          */

     

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         async testAuth(): Promise<boolean> {

     

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           const response = await this.limiter.schedule(() =>

     

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             fetch("https://slack.com/api/auth.test", {

     

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               headers: {

     

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                 Authorization: `Bearer ${this.botToken}`,

     

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                 "Content-Type": "application/json",

     

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               },

     

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             }),

     

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           );

     

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           const data = (await response.json()) as {

     

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             ok: boolean;

     

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             error: string | null;

     

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           };

     

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           if (!data.ok) {

     

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             throw new Error(`Authentication failed: ${data.error}`);

     

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           }

     
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          * @throws Error if the API request fails

     

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          */

     

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         async getUserInfo(userId: string): Promise<SlackUser> {

     

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           const response = await this.limiter.schedule(() =>

     

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             fetch(`https://slack.com/api/users.info?user=${userId}`, {

     

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               method: "POST",

     

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               headers: {

     

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                 Authorization: `Bearer ${this.botToken}`,

     

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                 "Content-Type": "application/json",

     

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               },

     

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               body: JSON.stringify({ user: userId }),

     

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             }),

     

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           );

     

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           const data = (await response.json()) as SlackUserInfoResponse;

     

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           if ((!data.ok && data.error !== "user_not_found") || !data.user) {

     

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             throw new Error(data.error);

     

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           }

     
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          * @throws Error if the API request fails

     

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          */

     

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         async getEmojiList(): Promise<Record<string, string>> {

     

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           const response = await this.limiter.schedule(() =>

     

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             fetch("https://slack.com/api/emoji.list", {

     

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               headers: {

     

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                 Authorization: `Bearer ${this.botToken}`,

     

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                 "Content-Type": "application/json",

     

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               },

     

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             }),

     

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           );

     

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           const data = (await response.json()) as SlackEmojiListResponse;

     

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           if (!data.ok || !data.emoji) {

     

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             throw new Error(`Failed to get emoji list: ${data.error}`);

     

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           }

     
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           const hmac = createHmac("sha256", this.signingSecret);

     

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           const computedSignature = `v0=${hmac.update(baseString).digest("hex")}`;

     

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           return timingSafeEqual(

     

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             new Uint8Array(Buffer.from(signature)),

     

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             new Uint8Array(Buffer.from(computedSignature)),

     

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           );

     

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         }

     

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       }