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@@ -59,6 +59,16 @@ class ForwardedForHeaders implements ISetupCheck {
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return SetupResult::error($this->l10n->t('Your "trusted_proxies" setting is not correctly set, it should be an array.'));
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}
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+ foreach ($trustedProxies as $proxy) {
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+ $addressParts = explode('/', $proxy, 2);
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+ if (filter_var($addressParts[0], FILTER_VALIDATE_IP) === false || !ctype_digit($addressParts[1] ?? '24')) {
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+ return SetupResult::error(
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+ $this->l10n->t('Your "trusted_proxies" setting is not correctly set, it should be an array of IP addresses - optionally with range in CIDR notation.'),
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+ $this->urlGenerator->linkToDocs('admin-reverse-proxy'),
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+ );
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+ }
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+ }
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+
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if (($remoteAddress === '') && ($detectedRemoteAddress === '')) {
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if (\OC::$CLI) {
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/* We were called from CLI */
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