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/*
GoToSocial
Copyright (C) GoToSocial Authors admin@gotosocial.org
SPDX-License-Identifier: AGPL-3.0-or-later
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 <http://www.gnu.org/licenses/>.
*/
import isValidDomain from "is-valid-domain";
import { useCallback } from "react";
import { ValidScopes, ValidTopLevelScopes } from "../types/scopes";
/**
* Validate the "domain" field of a form.
* @param domain
* @returns
*/
export function formDomainValidator(domain: string): string {
if (domain.length === 0) {
return "";
}
// Allow localhost for testing.
if (domain === "localhost") {
return "";
}
if (domain[domain.length-1] === ".") {
return "invalid domain";
}
const valid = isValidDomain(domain, {
subdomain: true,
wildcard: false,
allowUnicode: true,
topLevel: false,
});
if (valid) {
return "";
}
return "invalid domain";
}
export function urlValidator(urlStr: string): string {
if (urlStr.length === 0) {
return "";
}
let url: URL;
try {
url = new URL(urlStr);
} catch (e) {
return e.message;
}
if (url.protocol !== "http:" && url.protocol !== "https:") {
return `invalid protocol, must be http or https`;
}
return formDomainValidator(url.hostname);
}
export function useScopesValidator(): (_scopes: string[]) => string {
return useCallback((scopes) => {
return scopes.
map((scope) => validateScope(scope)).
flatMap((msg) => msg || []).
join(", ");
}, []);
}
export function useScopeValidator(): (_scope: string) => string {
return useCallback((scope) => validateScope(scope), []);
}
const validateScope = (scope: string) => {
if (!ValidScopes.includes(scope)) {
return scope + " is not a recognized scope";
}
return "";
};
export function useScopesPermittedBy(): (_hasScopes: string[], _wantScopes: string[]) => string {
return useCallback((hasScopes, wantsScopes) => {
return wantsScopes.
map((wanted) => scopePermittedByScopes(hasScopes, wanted)).
flatMap((msg) => msg || []).
join(", ");
}, []);
}
const scopePermittedByScopes = (hasScopes: string[], wanted: string) => {
if (hasScopes.some((hasScope) => scopePermittedByScope(hasScope, wanted) === "")) {
return "";
}
return `scopes [${hasScopes}] do not permit ${wanted}`;
};
const scopePermittedByScope = (has: string, wanted: string) => {
if (has === wanted) {
// Exact match on either a
// top-level or granular scope.
return "";
}
// Ensure we have a
// known top-level scope.
switch (true) {
case (ValidTopLevelScopes.includes(has)):
// Check if top-level includes wanted,
// eg., have "admin", want "admin:read".
if (wanted.startsWith(has + ":")) {
return "";
} else {
return `scope ${has} does not permit ${wanted}`;
}
default:
// Unknown top-level scope,
// can't permit anything.
return `unrecognized scope ${has}`;
}
};
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