37 lines
1.2 KiB
PHP
37 lines
1.2 KiB
PHP
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<?php
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$map = array();
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// grab list of known SLDs from https://github.com/gavingmiller/second-level-domains
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// using curl since file_get_contents() won't do SSL...
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$url = 'https://raw.github.com/gavingmiller/second-level-domains/master/SLDs.csv';
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$curl = curl_init($url);
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curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
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curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
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curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
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curl_setopt($curl, CURLOPT_MAXREDIRS, 10);
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$source = curl_exec($curl);
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// $source is a CSV, but a rather simple one I wouldn't go through the hassle of using str_getcsv() for
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$source = preg_split("/\r\n|\r|\n/", $source);
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foreach ($source as $line) {
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$t = explode(',', $line);
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$tld = strtolower(substr($t[0], 1)); // skip the leading dot
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$sld = strtolower(substr($t[1], 1, strrpos($t[1], '.') - 1));
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if (!$tld || !$sld || strpos($sld, '.') !== false) {
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continue;
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}
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$map[$tld][] = $sld;
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}
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// source seems to be tainted with duplicates (and false SLDs like "govt.uk")
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// for now we don't care about false (or missing) SLDs
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foreach ($map as $tld => &$slds) {
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$slds = array_unique($slds);
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sort($slds);
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$slds = join('|', $slds);
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}
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echo json_encode($map);
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