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| 1 | +<!DOCTYPE html> |
| 2 | +<html> |
| 3 | +<head lang="en"> |
| 4 | + <meta charset="UTF-8"> |
| 5 | + <title>Session Management - OP iframe</title> |
| 6 | + <script src="https://cdnjs.cloudflare.com/ajax/libs/jsSHA/2.3.1/sha256.js" |
| 7 | + integrity="sha256-NyuvLfsvfCfE+ceV6/W19H+qVp3M8c9FzAgj72CW39w=" |
| 8 | + crossorigin="anonymous"></script> |
| 9 | + <script src="https://cdn.polyfill.io/v2/polyfill.min.js?features=fetch&rum=0"></script> |
| 10 | +</head> |
| 11 | +<body> |
| 12 | + |
| 13 | +<script type="application/javascript"> |
| 14 | + (function () { |
| 15 | + var originCheckResult; |
| 16 | + |
| 17 | + function calculate(clientId, origin, actual, salt, cb) { |
| 18 | + try { |
| 19 | + if (originCheckResult.clientId !== clientId || originCheckResult.origin !== origin) { |
| 20 | + throw new Error('client_id and/or origin mismatch'); |
| 21 | + } |
| 22 | + var opbs = getOPBrowserState(clientId); |
| 23 | + var stat = 'changed'; |
| 24 | + |
| 25 | + if (opbs) { |
| 26 | + console.log('[op_iframe] opbs: ' + opbs+ ' clientId: ' + clientId + ' origin: ' + origin + ' salt: ' + salt); |
| 27 | + var shaObj = new jsSHA('SHA-256', 'TEXT'); |
| 28 | + shaObj.update(clientId + ' ' + origin + ' ' + opbs + ' ' + salt); |
| 29 | + var expected = shaObj.getHash('HEX') + (salt ? ('.' + salt) : ''); |
| 30 | + |
| 31 | + console.log('[op_iframe] actual: ' + actual + ' expected: ' + expected); |
| 32 | + if (actual === expected) { |
| 33 | + stat = 'unchanged'; |
| 34 | + } |
| 35 | + |
| 36 | + cb(stat); |
| 37 | + } else if ('hasStorageAccess' in document) { |
| 38 | + document.hasStorageAccess().then(function (hasAccess) { |
| 39 | + if (!hasAccess) { |
| 40 | + cb('error'); |
| 41 | + } else { |
| 42 | + cb(stat); |
| 43 | + } |
| 44 | + }, cb.bind(undefined, 'error')); |
| 45 | + } else { |
| 46 | + cb(stat); |
| 47 | + } |
| 48 | + } catch (err) { |
| 49 | + cb('error'); |
| 50 | + } |
| 51 | + } |
| 52 | + |
| 53 | + function check(clientId, origin, actual, salt, cb) { |
| 54 | + if (!originCheckResult) { |
| 55 | + fetch(location.pathname, { |
| 56 | + method: 'POST', |
| 57 | + headers: { |
| 58 | + 'Content-Type': 'application/json; charset=utf-8', |
| 59 | + }, |
| 60 | + body: JSON.stringify({client_id: clientId, origin: origin}), |
| 61 | + redirect: 'error', |
| 62 | + }).then(function (response) { |
| 63 | + if (response.ok) { |
| 64 | + originCheckResult = { |
| 65 | + origin: origin, |
| 66 | + clientId: clientId, |
| 67 | + }; |
| 68 | + calculate(clientId, origin, actual, salt, cb); |
| 69 | + } else { |
| 70 | + throw new Error('invalid client_id and/or origin'); |
| 71 | + } |
| 72 | + }).catch(cb.bind(undefined, 'error')); |
| 73 | + } else { |
| 74 | + calculate(clientId, origin, actual, salt, cb); |
| 75 | + } |
| 76 | + } |
| 77 | + |
| 78 | + function receiveMessage(e) { |
| 79 | + if (typeof e.data !== 'string') { |
| 80 | + return; |
| 81 | + } |
| 82 | + var parts = e.data.split(' '); |
| 83 | + var clientId = parts[0]; |
| 84 | + var actual = parts[1]; |
| 85 | + if (parts.length !== 2 || !clientId || !actual) { |
| 86 | + return; |
| 87 | + } |
| 88 | + var actualParts = actual.split('.'); |
| 89 | + var sessionStr = actualParts[0]; |
| 90 | + var salt = actualParts[1]; |
| 91 | + if (!sessionStr || actualParts.length > 2) { |
| 92 | + return; |
| 93 | + } |
| 94 | + check(clientId, e.origin, actual, salt, function (stat) { |
| 95 | + e.source.postMessage(stat, e.origin); |
| 96 | + }); |
| 97 | + } |
| 98 | + |
| 99 | + function getOPBrowserState(clientId) { |
| 100 | + var cookie = readCookie('sman'); |
| 101 | + return cookie; |
| 102 | + } |
| 103 | + |
| 104 | + function readCookie(name) { |
| 105 | + var nameEQ = name + '='; |
| 106 | + var ca = document.cookie.split(';'); |
| 107 | + for (var i = 0; i < ca.length; i++) { |
| 108 | + var c = ca[i]; |
| 109 | + while (c.charAt(0) === ' ') c = c.substring(1, c.length); |
| 110 | + if (c.indexOf(nameEQ) === 0) { |
| 111 | + return c.substring(nameEQ.length, c.length); |
| 112 | + } |
| 113 | + } |
| 114 | + return null; |
| 115 | + } |
| 116 | + |
| 117 | + window.addEventListener('message', receiveMessage, false); |
| 118 | + })(); |
| 119 | +</script> |
| 120 | + |
| 121 | +</body> |
| 122 | +</html> |
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