85 lines
1.5 KiB
TypeScript
85 lines
1.5 KiB
TypeScript
import LinkifyIt, {Match} from "linkify-it";
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import tlds from "tlds";
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export type NoSchemaMatch = Match & {
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noschema: boolean;
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};
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export type LinkPart = {
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start: number;
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end: number;
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link: string;
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};
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LinkifyIt.prototype.normalize = function normalize(match: NoSchemaMatch) {
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match.noschema = false;
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if (!match.schema) {
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match.schema = "http:";
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match.url = "http://" + match.url;
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match.noschema = true;
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}
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if (match.schema === "//") {
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match.schema = "http:";
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match.url = "http:" + match.url;
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match.noschema = true;
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}
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if (match.schema === "mailto:" && !/^mailto:/i.test(match.url)) {
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match.url = "mailto:" + match.url;
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}
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};
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const linkify = LinkifyIt().tlds(tlds).tlds("onion", true);
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// Known schemes to detect in text
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const commonSchemes = [
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"sftp",
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"smb",
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"file",
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"irc",
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"ircs",
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"svn",
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"git",
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"steam",
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"mumble",
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"ts3server",
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"svn+ssh",
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"ssh",
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"gopher",
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"gemini",
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];
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for (const schema of commonSchemes) {
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linkify.add(schema + ":", "http:");
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}
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export function findLinks(text: string) {
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const matches = linkify.match(text) as NoSchemaMatch[];
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if (!matches) {
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return [];
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}
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return matches.map(makeLinkPart);
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}
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export function findLinksWithSchema(text: string) {
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const matches = linkify.match(text) as NoSchemaMatch[];
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if (!matches) {
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return [];
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}
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return matches.filter((url) => !url.noschema).map(makeLinkPart);
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}
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function makeLinkPart(url: NoSchemaMatch): LinkPart {
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return {
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start: url.index,
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end: url.lastIndex,
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link: url.url,
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};
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}
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