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/*
Fosscord: A FOSS re-implementation and extension of the Discord.com backend.
Copyright (C) 2023 Fosscord and Fosscord Contributors
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
import { Config } from "@fosscord/util";
import fetch from "node-fetch";
export interface hcaptchaResponse {
success: boolean;
challenge_ts: string;
hostname: string;
credit: boolean;
"error-codes": string[];
score: number; // enterprise only
score_reason: string[]; // enterprise only
}
export interface recaptchaResponse {
success: boolean;
score: number; // between 0 - 1
action: string;
challenge_ts: string;
hostname: string;
"error-codes"?: string[];
}
const verifyEndpoints = {
hcaptcha: "https://hcaptcha.com/siteverify",
recaptcha: "https://www.google.com/recaptcha/api/siteverify",
};
export async function verifyCaptcha(response: string, ip?: string) {
const { security } = Config.get();
const { service, secret, sitekey } = security.captcha;
if (!service || !secret || !sitekey)
throw new Error(
"CAPTCHA is not configured correctly. https://docs.fosscord.com/setup/server/security/captcha/",
);
const res = await fetch(verifyEndpoints[service], {
method: "POST",
headers: {
"Content-Type": "application/x-www-form-urlencoded",
},
body:
`response=${encodeURIComponent(response)}` +
`&secret=${encodeURIComponent(secret)}` +
`&sitekey=${encodeURIComponent(sitekey)}` +
(ip ? `&remoteip=${encodeURIComponent(ip)}` : ""),
});
return (await res.json()) as hcaptchaResponse | recaptchaResponse;
}
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