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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) 2006-2015 Eyeo GmbH | 3 * Copyright (C) 2006-2015 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 |
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21 let {stringifyURL, getDecodedHostname, extractHostFromFrame, isThirdParty} = req
uire("url"); | 21 let {stringifyURL, getDecodedHostname, extractHostFromFrame, isThirdParty} = req
uire("url"); |
22 | 22 |
23 let pagesWithKey = new ext.PageMap(); | 23 let pagesWithKey = new ext.PageMap(); |
24 | 24 |
25 /** | 25 /** |
26 * Checks whether a page is whitelisted. | 26 * Checks whether a page is whitelisted. |
27 * | 27 * |
28 * @param {Page} page | 28 * @param {Page} page |
29 * @return {WhitelistFilter} The active filter whitelisting this page or null | 29 * @return {WhitelistFilter} The active filter whitelisting this page or null |
30 */ | 30 */ |
31 function isPageWhitelisted(page) | 31 exports.isPageWhitelisted = function(page) |
32 { | 32 { |
33 let url = page.url; | 33 let url = page.url; |
34 | 34 |
35 return defaultMatcher.whitelist.matchesAny( | 35 return defaultMatcher.whitelist.matchesAny( |
36 stringifyURL(url), "DOCUMENT", | 36 stringifyURL(url), "DOCUMENT", |
37 getDecodedHostname(url), false, null | 37 getDecodedHostname(url), false, null |
38 ); | 38 ); |
39 } | 39 }; |
40 exports.isPageWhitelisted = isPageWhitelisted; | |
41 | 40 |
42 /** | 41 /** |
43 * Checks whether a frame is whitelisted. | 42 * Checks whether a frame is whitelisted. |
44 * | 43 * |
45 * @param {Page} page | 44 * @param {Page} page |
46 * @param {Frame} frame | 45 * @param {Frame} frame |
47 * @param {string} [type=DOCUMENT] The request type to check whether | 46 * @param {string} [type=DOCUMENT] The request type to check whether |
48 * the frame is whitelisted for. | 47 * the frame is whitelisted for. |
49 * @return {Boolean} | 48 * @return {Boolean} |
50 */ | 49 */ |
51 function isFrameWhitelisted(page, frame, type) | 50 exports.isFrameWhitelisted = function(page, frame, type) |
52 { | 51 { |
53 while (frame) | 52 while (frame) |
54 { | 53 { |
55 let parent = frame.parent; | 54 let parent = frame.parent; |
56 let url = frame.url; | 55 let url = frame.url; |
57 let documentHost = extractHostFromFrame(parent) || getDecodedHostname(url); | 56 let documentHost = extractHostFromFrame(parent) || getDecodedHostname(url); |
58 | 57 |
59 let filter = defaultMatcher.whitelist.matchesAny( | 58 let filter = defaultMatcher.whitelist.matchesAny( |
60 stringifyURL(url), type || "DOCUMENT", | 59 stringifyURL(url), type || "DOCUMENT", |
61 documentHost, isThirdParty(url, documentHost), | 60 documentHost, isThirdParty(url, documentHost), |
62 getKey(page, frame) | 61 getKey(page, frame) |
63 ); | 62 ); |
64 | 63 |
65 if (filter) | 64 if (filter) |
66 return true; | 65 return true; |
67 | 66 |
68 frame = parent; | 67 frame = parent; |
69 } | 68 } |
70 | 69 |
71 return false; | 70 return false; |
72 } | 71 }; |
73 exports.isFrameWhitelisted = isFrameWhitelisted; | |
74 | 72 |
75 /** | 73 /** |
76 * Gets the public key, previously recorded for the given page | 74 * Gets the public key, previously recorded for the given page |
77 * and frame, to be considered for the $sitekey filter option. | 75 * and frame, to be considered for the $sitekey filter option. |
78 * | 76 * |
79 * @param {Page} page | 77 * @param {Page} page |
80 * @param {Frame} frame | 78 * @param {Frame} frame |
81 * @return {string} | 79 * @return {string} |
82 */ | 80 */ |
83 function getKey(page, frame) | 81 exports.getKey = function(page, frame) |
84 { | 82 { |
85 let urlsWithKey = pagesWithKey.get(page); | 83 let urlsWithKey = pagesWithKey.get(page); |
86 if (!urlsWithKey) | 84 if (!urlsWithKey) |
87 return null; | 85 return null; |
88 | 86 |
89 for (; frame != null; frame = frame.parent) | 87 for (; frame != null; frame = frame.parent) |
90 { | 88 { |
91 let key = urlsWithKey[stringifyURL(frame.url)]; | 89 let key = urlsWithKey[stringifyURL(frame.url)]; |
92 if (key) | 90 if (key) |
93 return key; | 91 return key; |
94 } | 92 } |
95 | 93 |
96 return null; | 94 return null; |
97 } | 95 }; |
98 exports.getKey = getKey; | |
99 | 96 |
100 function verifyKey(key, signature, url) | 97 function verifyKey(key, signature, url) |
101 { | 98 { |
102 let params = [ | 99 let params = [ |
103 url.pathname + url.search, // REQUEST_URI | 100 url.pathname + url.search, // REQUEST_URI |
104 url.host, // HTTP_HOST | 101 url.host, // HTTP_HOST |
105 window.navigator.userAgent // HTTP_USER_AGENT | 102 window.navigator.userAgent // HTTP_USER_AGENT |
106 ]; | 103 ]; |
107 | 104 |
108 return verifySignature(key, signature, params.join("\0")); | 105 return verifySignature(key, signature, params.join("\0")); |
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125 * Validates signatures given by the "X-Adblock-Key" response | 122 * Validates signatures given by the "X-Adblock-Key" response |
126 * header or the "data-adblockkey" attribute of the document | 123 * header or the "data-adblockkey" attribute of the document |
127 * element. If the signature is valid, the public key will be | 124 * element. If the signature is valid, the public key will be |
128 * recorded and considered for the $sitekey filter option. | 125 * recorded and considered for the $sitekey filter option. |
129 * | 126 * |
130 * @param {string} token The base64-encoded public key and | 127 * @param {string} token The base64-encoded public key and |
131 * signature separated by an underscrore. | 128 * signature separated by an underscrore. |
132 * @param {Page} page | 129 * @param {Page} page |
133 * @param {Frame} frame | 130 * @param {Frame} frame |
134 */ | 131 */ |
135 function processKey(token, page, frame) | 132 exports.processKey = function(token, page, frame) |
136 { | 133 { |
137 if (token.indexOf("_") < 0) | 134 if (token.indexOf("_") < 0) |
138 return; | 135 return; |
139 | 136 |
140 let [key, signature] = token.split("_", 2); | 137 let [key, signature] = token.split("_", 2); |
141 key = key.replace(/=/g, ""); | 138 key = key.replace(/=/g, ""); |
142 | 139 |
143 if (verifyKey(key, signature, frame.url)) | 140 if (verifyKey(key, signature, frame.url)) |
144 recordKey(page, frame.url, key); | 141 recordKey(page, frame.url, key); |
145 } | 142 }; |
146 exports.processKey = processKey; | |
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