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c458c05801
The dark lord Gosling designed the Java package naming system so that ownership flows from the DNS system. Since we own the domain name registry.google, it seems only appropriate that we should use google.registry as our package name.
106 lines
4.5 KiB
Java
106 lines
4.5 KiB
Java
// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package google.registry.whois;
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import static com.google.common.base.Preconditions.checkArgument;
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import static com.google.common.base.Strings.isNullOrEmpty;
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import static google.registry.util.CacheUtils.memoizeWithShortExpiration;
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import static google.registry.util.RegistrarUtils.normalizeRegistrarName;
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import static javax.servlet.http.HttpServletResponse.SC_NOT_FOUND;
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import com.google.common.annotations.VisibleForTesting;
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import com.google.common.base.CharMatcher;
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import com.google.common.base.Joiner;
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import com.google.common.base.Splitter;
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import com.google.common.base.Supplier;
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import com.google.common.collect.ImmutableMap;
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import google.registry.model.registrar.Registrar;
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import google.registry.util.FormattingLogger;
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import org.joda.time.DateTime;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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/** Represents a WHOIS lookup for a registrar by its name. */
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final class RegistrarLookupCommand implements WhoisCommand {
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private static final FormattingLogger logger = FormattingLogger.getLoggerForCallerClass();
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/**
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* Cache of a map from a stripped-down (letters and digits only) name to the registrar. This map
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* includes only active, publicly visible registrars, because the others should be invisible to
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* WHOIS.
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*/
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private static final Supplier<Map<String, Registrar>> REGISTRAR_BY_NORMALIZED_NAME_CACHE =
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memoizeWithShortExpiration(new Supplier<Map<String, Registrar>>() {
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@Override
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public Map<String, Registrar> get() {
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Map<String, Registrar> map = new HashMap<>();
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// Use the normalized registrar name as a key.
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Iterable<Registrar> registrars = Registrar.loadAllActiveAndPubliclyVisible();
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for (Registrar registrar : registrars) {
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if (registrar.getRegistrarName() == null) {
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continue;
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}
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String normalized = normalizeRegistrarName(registrar.getRegistrarName());
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if (map.put(normalized, registrar) != null) {
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logger.warning(normalized
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+ " appeared as a normalized registrar name for more than one registrar");
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}
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}
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// Use the normalized registrar name without its last word as a key, assuming there are
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// multiple words in the name. This allows searches without LLC or INC, etc. Only insert
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// if there isn't already a mapping for this string, so that if there's a registrar with a
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// two word name (Go Daddy) and no business-type suffix and another registrar with just
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// that first word as its name (Go), the latter will win.
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for (Registrar registrar : registrars) {
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if (registrar.getRegistrarName() == null) {
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continue;
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}
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List<String> words =
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Splitter.on(CharMatcher.whitespace()).splitToList(registrar.getRegistrarName());
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if (words.size() > 1) {
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String normalized =
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normalizeRegistrarName(Joiner.on("").join(words.subList(0, words.size() - 1)));
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if (!map.containsKey(normalized)) {
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map.put(normalized, registrar);
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}
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}
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}
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return ImmutableMap.copyOf(map);
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}});
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@VisibleForTesting
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final String registrarName;
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RegistrarLookupCommand(String registrarName) {
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checkArgument(!isNullOrEmpty(registrarName), "registrarName");
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this.registrarName = registrarName;
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}
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@Override
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public WhoisResponse executeQuery(DateTime now) throws WhoisException {
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Registrar registrar =
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REGISTRAR_BY_NORMALIZED_NAME_CACHE.get().get(normalizeRegistrarName(registrarName));
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// If a registrar is in the cache, we know it must be active and publicly visible.
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if (registrar == null) {
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throw new WhoisException(now, SC_NOT_FOUND, "No registrar found.");
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}
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return new RegistrarWhoisResponse(registrar, now);
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}
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}
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