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56 lines
2.2 KiB
56 lines
2.2 KiB
/*! |
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* Copyright (c) 2015, Salesforce.com, Inc. |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright notice, |
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* this list of conditions and the following disclaimer. |
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* |
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* 2. Redistributions in binary form must reproduce the above copyright notice, |
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* this list of conditions and the following disclaimer in the documentation |
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* and/or other materials provided with the distribution. |
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* |
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* 3. Neither the name of Salesforce.com nor the names of its contributors may |
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* be used to endorse or promote products derived from this software without |
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* specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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"use strict"; |
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var pubsuffix = require('./pubsuffix-psl'); |
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// Gives the permutation of all possible domainMatch()es of a given domain. The |
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// array is in shortest-to-longest order. Handy for indexing. |
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function permuteDomain (domain) { |
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var pubSuf = pubsuffix.getPublicSuffix(domain); |
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if (!pubSuf) { |
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return null; |
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} |
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if (pubSuf == domain) { |
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return [domain]; |
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} |
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var prefix = domain.slice(0, -(pubSuf.length + 1)); // ".example.com" |
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var parts = prefix.split('.').reverse(); |
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var cur = pubSuf; |
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var permutations = [cur]; |
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while (parts.length) { |
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cur = parts.shift() + '.' + cur; |
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permutations.push(cur); |
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} |
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return permutations; |
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} |
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exports.permuteDomain = permuteDomain;
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