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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.default = suffixLookup;
const tldts_core_1 = require("tldts-core");
const trie_1 = require("./data/trie");
/**
* Lookup parts of domain in Trie
*/
function lookupInTrie(parts, trie, index, allowedMask) {
let result = null;
let node = trie;
while (node !== undefined) {
// We have a match!
if ((node[0] & allowedMask) !== 0) {
result = {
index: index + 1,
isIcann: (node[0] & 1 /* RULE_TYPE.ICANN */) !== 0,
isPrivate: (node[0] & 2 /* RULE_TYPE.PRIVATE */) !== 0,
};
}
// No more `parts` to look for
if (index === -1) {
break;
}
const succ = node[1];
node = Object.prototype.hasOwnProperty.call(succ, parts[index])
? succ[parts[index]]
: succ['*'];
index -= 1;
}
return result;
}
/**
* Check if `hostname` has a valid public suffix in `trie`.
*/
function suffixLookup(hostname, options, out) {
var _a;
if ((0, tldts_core_1.fastPathLookup)(hostname, options, out)) {
return;
}
const hostnameParts = hostname.split('.');
const allowedMask = (options.allowPrivateDomains ? 2 /* RULE_TYPE.PRIVATE */ : 0) |
(options.allowIcannDomains ? 1 /* RULE_TYPE.ICANN */ : 0);
// Look for exceptions
const exceptionMatch = lookupInTrie(hostnameParts, trie_1.exceptions, hostnameParts.length - 1, allowedMask);
if (exceptionMatch !== null) {
out.isIcann = exceptionMatch.isIcann;
out.isPrivate = exceptionMatch.isPrivate;
out.publicSuffix = hostnameParts.slice(exceptionMatch.index + 1).join('.');
return;
}
// Look for a match in rules
const rulesMatch = lookupInTrie(hostnameParts, trie_1.rules, hostnameParts.length - 1, allowedMask);
if (rulesMatch !== null) {
out.isIcann = rulesMatch.isIcann;
out.isPrivate = rulesMatch.isPrivate;
out.publicSuffix = hostnameParts.slice(rulesMatch.index).join('.');
return;
}
// No match found...
// Prevailing rule is '*' so we consider the top-level domain to be the
// public suffix of `hostname` (e.g.: 'example.org' => 'org').
out.isIcann = false;
out.isPrivate = false;
out.publicSuffix = (_a = hostnameParts[hostnameParts.length - 1]) !== null && _a !== void 0 ? _a : null;
}
//# sourceMappingURL=suffix-trie.js.map
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