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70e2873430
Fix some edge cases in the autolinking logic with the regex as well as validating email domains and add unit tests for them. Fixes: https://github.com/mozilla/pdf.js/issues/19462
198 lines
7 KiB
JavaScript
198 lines
7 KiB
JavaScript
/* Copyright 2025 Mozilla Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import { Autolinker } from "../../web/autolinker.js";
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function testLinks(links) {
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const matches = Autolinker.findLinks(links.map(link => link[0]).join("\n"));
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expect(matches.length).toEqual(links.length);
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for (let i = 0; i < links.length; i++) {
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expect(matches[i].url).toEqual(links[i][1]);
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}
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}
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describe("autolinker", function () {
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it("should correctly find URLs", function () {
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const [matched] = Autolinker.findLinks("http://www.example.com");
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expect(matched.url).toEqual("http://www.example.com/");
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});
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it("should correctly find simple valid URLs", function () {
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testLinks([
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[
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"http://subdomain.example.com/path/to/page?query=param",
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"http://subdomain.example.com/path/to/page?query=param",
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],
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[
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"www.example.com/path/to/resource",
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"http://www.example.com/path/to/resource",
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],
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[
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"http://example.com/path?query=value#fragment",
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"http://example.com/path?query=value#fragment",
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],
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]);
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});
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it("should correctly find emails", function () {
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testLinks([
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["mailto:username@example.com", "mailto:username@example.com"],
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[
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"mailto:someone@subdomain.example.com",
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"mailto:someone@subdomain.example.com",
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],
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["peter@abc.de", "mailto:peter@abc.de"],
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["red.teddy.b@abc.com", "mailto:red.teddy.b@abc.com"],
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[
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"abc_@gmail.com", // '_' is ok before '@'.
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"mailto:abc_@gmail.com",
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],
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[
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"dummy-hi@gmail.com", // '-' is ok in user name.
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"mailto:dummy-hi@gmail.com",
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],
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[
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"a..df@gmail.com", // Stop at consecutive '.'.
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"mailto:a..df@gmail.com",
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],
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[
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".john@yahoo.com", // Remove heading '.'.
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"mailto:john@yahoo.com",
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],
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[
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"abc@xyz.org?/", // Trim ending invalid chars.
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"mailto:abc@xyz.org",
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],
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[
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"fan{abc@xyz.org", // Trim beginning invalid chars.
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"mailto:abc@xyz.org",
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],
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[
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"fan@g.com..", // Trim the ending periods.
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"mailto:fan@g.com",
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],
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[
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"CAP.cap@Gmail.Com", // Keep the original case.
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"mailto:CAP.cap@Gmail.Com",
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],
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["partl@mail.boku.ac.at", "mailto:partl@mail.boku.ac.at"],
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["Irene.Hyna@bmwf.ac.at", "mailto:Irene.Hyna@bmwf.ac.at"],
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["<hi@foo.bar.baz>", "mailto:hi@foo.bar.baz"],
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]);
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});
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it("should correctly handle complex or edge cases", function () {
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testLinks([
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[
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"https://example.com/path/to/page?query=param&another=val#section",
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"https://example.com/path/to/page?query=param&another=val#section",
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],
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[
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"www.example.com/resource/(parentheses)-allowed/",
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"http://www.example.com/resource/(parentheses)-allowed/",
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],
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[
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"http://example.com/path_with_underscores",
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"http://example.com/path_with_underscores",
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],
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[
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"http://www.example.com:8080/port/test",
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"http://www.example.com:8080/port/test",
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],
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[
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"https://example.com/encoded%20spaces%20in%20path",
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"https://example.com/encoded%20spaces%20in%20path",
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],
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["mailto:hello+world@example.com", "mailto:hello+world@example.com"],
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["www.a.com/#a=@?q=rr&r=y", "http://www.a.com/#a=@?q=rr&r=y"],
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["http://a.com/1/2/3/4\\5\\6", "http://a.com/1/2/3/4/5/6"],
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["http://www.example.com/foo;bar", "http://www.example.com/foo;bar"],
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// ["www.abc.com/#%%^&&*(", "http://www.abc.com/#%%^&&*("], TODO: Patch the regex to accept the whole URL.
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]);
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});
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it("shouldn't find false positives", function () {
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const matches = Autolinker.findLinks(
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[
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"not a valid URL",
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"htp://misspelled-protocol.com",
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"example.com (missing protocol)",
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"https://[::1] (IPv6 loopback)",
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"http:// (just protocol)",
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"", // Blank.
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"http", // No colon.
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"www.", // Missing domain.
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"https-and-www", // Dash not colon.
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"http:/abc.com", // Missing slash.
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"http://((()),", // Only invalid chars in host name.
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"ftp://example.com", // Ftp scheme is not supported.
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"http:example.com", // Missing slashes.
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"http//[example.com", // Invalid IPv6 address.
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"http//[00:00:00:00:00:00", // Invalid IPv6 address.
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"http//[]", // Empty IPv6 address.
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"abc.example.com", // URL without scheme.
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"JD?M$0QP)lKn06l1apKDC@\\qJ4B!!(5m+j.7F790m", // Not a valid email.
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].join("\n")
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);
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expect(matches.length).toEqual(0);
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});
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it("should correctly find links among mixed content", function () {
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const matches = Autolinker.findLinks(
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[
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"Here's a URL: https://example.com and an email: mailto:test@example.com",
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"www.example.com and more text",
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"Check this: http://example.com/path?query=1 and this mailto:info@domain.com",
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].join("\n")
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);
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expect(matches.length).toEqual(5);
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expect(matches[0].url).toEqual("https://example.com/");
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expect(matches[1].url).toEqual("mailto:test@example.com");
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expect(matches[2].url).toEqual("http://www.example.com/");
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expect(matches[3].url).toEqual("http://example.com/path?query=1");
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expect(matches[4].url).toEqual("mailto:info@domain.com");
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});
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it("should correctly work with special characters", function () {
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testLinks([
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[
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"https://example.com/path/to/page?query=value&symbol=£",
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"https://example.com/path/to/page?query=value&symbol=%C2%A3",
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],
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[
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"mailto:user.name+alias@example-domain.com",
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"mailto:user.name+alias@example-domain.com",
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],
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["http://example.com/@user", "http://example.com/@user"],
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["https://example.com/path#@anchor", "https://example.com/path#@anchor"],
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["www.测试.net", "http://www.xn--0zwm56d.net/"],
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["www.测试.net；", "http://www.xn--0zwm56d.net/"],
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// [ "www.测试。net。", "http://www.xn--0zwm56d.net/" ] TODO: Patch `createValidAbsoluteUrl` to accept this.
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]);
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});
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it("should correctly find links with dashes and newlines between numbers", function () {
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const matches = Autolinker.findLinks("http://abcd.efg/test1-\n2/test.html");
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expect(matches.length).toEqual(1);
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expect(matches[0].url).toEqual("http://abcd.efg/test1-2/test.html");
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});
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it("should correctly identify emails with special prefixes", function () {
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testLinks([
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["wwwtest@email.com", "mailto:wwwtest@email.com"],
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["httptest@email.com", "mailto:httptest@email.com"],
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]);
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});
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});
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