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1 /* | 1 /* |
2 * This file is part of Adblock Plus <https://adblockplus.org/>, | 2 * This file is part of Adblock Plus <https://adblockplus.org/>, |
3 * Copyright (C) 2006-present eyeo GmbH | 3 * Copyright (C) 2006-present eyeo GmbH |
4 * | 4 * |
5 * Adblock Plus is free software: you can redistribute it and/or modify | 5 * Adblock Plus is free software: you can redistribute it and/or modify |
6 * it under the terms of the GNU General Public License version 3 as | 6 * it under the terms of the GNU General Public License version 3 as |
7 * published by the Free Software Foundation. | 7 * published by the Free Software Foundation. |
8 * | 8 * |
9 * Adblock Plus is distributed in the hope that it will be useful, | 9 * Adblock Plus is distributed in the hope that it will be useful, |
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of | 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
12 * GNU General Public License for more details. | 12 * GNU General Public License for more details. |
13 * | 13 * |
14 * You should have received a copy of the GNU General Public License | 14 * You should have received a copy of the GNU General Public License |
15 * along with Adblock Plus. If not, see <http://www.gnu.org/licenses/>. | 15 * along with Adblock Plus. If not, see <http://www.gnu.org/licenses/>. |
16 */ | 16 */ |
17 | 17 |
18 /** @module url */ | 18 /** @module url */ |
19 | 19 |
20 "use strict"; | 20 "use strict"; |
21 | 21 |
22 const {getDomain} = require("./tldjs"); | |
23 | |
24 /** | 22 /** |
25 * Gets the IDN-decoded hostname from the URL of a frame. | 23 * Gets the IDN-decoded hostname from the URL of a frame. |
26 * If the URL don't have host information (like "about:blank" | 24 * If the URL don't have host information (like "about:blank" |
27 * and "data:" URLs) it falls back to the parent frame. | 25 * and "data:" URLs) it falls back to the parent frame. |
28 * | 26 * |
29 * @param {?Frame} frame | 27 * @param {?Frame} frame |
30 * @param {URL} [originUrl] | 28 * @param {URL} [originUrl] |
31 * @return {string} | 29 * @return {string} |
32 */ | 30 */ |
33 exports.extractHostFromFrame = (frame, originUrl) => | 31 exports.extractHostFromFrame = (frame, originUrl) => |
34 { | 32 { |
35 for (; frame; frame = frame.parent) | 33 for (; frame; frame = frame.parent) |
36 { | 34 { |
37 let {hostname} = frame.url; | 35 let {hostname} = frame.url; |
38 if (hostname) | 36 if (hostname) |
39 return hostname; | 37 return hostname; |
40 } | 38 } |
41 | 39 |
42 return originUrl ? originUrl.hostname : ""; | 40 return originUrl ? originUrl.hostname : ""; |
43 }; | 41 }; |
44 | |
45 function isDomain(hostname) | |
46 { | |
47 // No hostname or IPv4 address, also considering hexadecimal octets. | |
48 if (/^((0x[\da-f]+|\d+)(\.|$))*$/i.test(hostname)) | |
49 return false; | |
50 | |
51 // IPv6 address. Since there can't be colons in domains, we can | |
52 // just check whether there are any colons to exclude IPv6 addresses. | |
53 return hostname.indexOf(":") == -1; | |
54 } | |
55 | |
56 /** | |
57 * Checks whether the request's origin is different from the document's origin. | |
58 * | |
59 * @param {URL} url The request URL | |
60 * @param {string} documentHost The IDN-decoded hostname of the document | |
61 * @return {Boolean} | |
62 */ | |
63 exports.isThirdParty = (url, documentHost) => | |
64 { | |
65 let requestHost = url.hostname.replace(/\.+$/, ""); | |
66 documentHost = documentHost.replace(/\.+$/, ""); | |
67 | |
68 if (requestHost == documentHost) | |
69 return false; | |
70 | |
71 if (!isDomain(requestHost) || !isDomain(documentHost)) | |
72 return true; | |
73 | |
74 return getDomain(requestHost) != getDomain(documentHost); | |
75 }; | |
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