89 lines
3.5 KiB
PHP
89 lines
3.5 KiB
PHP
<?php
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function parseZoneFile($zone_content, $types, $filter_domain = false) {
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$parsed_zone_content = [];
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foreach (explode(LF, $zone_content) as $zone_line) {
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if ($zone_line === '' OR str_starts_with($zone_line, ';'))
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continue; // Ignore empty lines and comments
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$elements = preg_split('/[\t ]+/', $zone_line, 4);
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if ($filter_domain !== false AND !str_ends_with($elements[0], $filter_domain))
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continue; // Ignore records for other domains
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if (!in_array($elements[2], $types, true)) continue; // Ignore records generated by Knot
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array_push($parsed_zone_content, array_map('htmlspecialchars', $elements));
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}
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return $parsed_zone_content;
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}
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function knotcConfExec($cmds) {
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exec(CONF['dns']['knotc_path'] . ' conf-begin', $output['begin'], $code['begin']);
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if ($code['begin'] !== 0)
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output(500, 'knotcConfExec: <code>knotc</code> failed with exit code <samp>' . $code['begin'] . '</samp>: <samp>' . $output['begin'][0] . '</samp>.');
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foreach ($cmds as $cmd) {
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exec(CONF['dns']['knotc_path'] . ' conf-' . $cmd, $output['op'], $code['op']);
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if ($code['op'] !== 0) {
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exec(CONF['dns']['knotc_path'] . ' conf-abort');
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output(500, 'knotcConfExec: <code>knotc</code> failed with exit code <samp>' . $code['op'] . '</samp>: <samp>' . $output['op'][0] . '</samp>.');
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}
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}
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exec(CONF['dns']['knotc_path'] . ' conf-commit', $output['commit'], $code['commit']);
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if ($code['commit'] !== 0) {
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exec(CONF['dns']['knotc_path'] . ' conf-abort');
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output(500, 'knotcConfExec: <code>knotc</code> failed with exit code <samp>' . $code['commit'] . '</samp>: <samp>' . $output['commit'][0] . '</samp>.');
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}
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}
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function knotcZoneExec($zone, $cmd, $action = NULL) {
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$action = checkAction($action ?? $_POST['action']);
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exec(CONF['dns']['knotc_path'] . ' zone-begin ' . $zone, $output['begin'], $code['begin']);
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if ($code['begin'] !== 0)
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output(500, 'knotcZoneExec: <code>knotc</code> failed with exit code <samp>' . $code['begin'] . '</samp>: <samp>' . $output['begin'][0] . '</samp>.');
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exec(CONF['dns']['knotc_path'] . ' zone-' . $action . 'set ' . $zone . ' ' . implode(' ', $cmd), $output['op'], $code['op']);
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if ($code['op'] !== 0) {
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exec(CONF['dns']['knotc_path'] . ' zone-abort ' . $zone);
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output(500, 'knotcZoneExec: <code>knotc</code> failed with exit code <samp>' . $code['op'] . '</samp>: <samp>' . $output['op'][0] . '</samp>.');
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}
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exec(CONF['dns']['knotc_path'] . ' zone-commit ' . $zone, $output['commit'], $code['commit']);
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if ($code['commit'] !== 0) {
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exec(CONF['dns']['knotc_path'] . ' zone-abort ' . $zone);
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output(500, 'knotcZoneExec: <code>knotc</code> failed with exit code <samp>' . $code['commit'] . '</samp>: <samp>' . $output['commit'][0] . '</samp>.');
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}
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}
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function checkIpFormat($ip) {
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if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4))
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return 'A';
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if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6))
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return 'AAAA';
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output(403, _('IP address malformed.'));
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}
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function checkAbsoluteDomainFormat($domain) { // If the domain must end with a dot
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if (!filter_var($domain, FILTER_VALIDATE_DOMAIN) OR preg_match('/^([a-z0-9_-]{1,63}\.){2,127}$/D', $domain) !== 1)
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output(403, _('Domain malformed.'));
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}
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function formatEndWithDot($str) {
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if (!str_ends_with($str, '.'))
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$str .= '.';
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return $str;
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}
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function formatAbsoluteDomain($domain) {
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$domain = formatEndWithDot(strtolower($domain));
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checkAbsoluteDomainFormat($domain);
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return $domain;
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}
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function checkAction($action) {
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return match ($action) {
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'add' => '',
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'delete' => 'un',
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default => output(403, 'Wrong value for action.'),
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};
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}
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