| // Copyright (C) 2009 The Android Open Source Project |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package com.google.gerrit.server.account; |
| |
| import com.google.common.collect.Sets; |
| import com.google.gerrit.reviewdb.client.Account; |
| import com.google.gerrit.reviewdb.client.AccountExternalId; |
| import com.google.gerrit.reviewdb.server.ReviewDb; |
| import com.google.gwtorm.server.OrmException; |
| import com.google.inject.Inject; |
| import com.google.inject.Provider; |
| |
| import java.util.Collections; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Set; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| public class AccountResolver { |
| private final Realm realm; |
| private final AccountByEmailCache byEmail; |
| private final AccountCache byId; |
| private final Provider<ReviewDb> schema; |
| |
| @Inject |
| AccountResolver(final Realm realm, final AccountByEmailCache byEmail, |
| final AccountCache byId, final Provider<ReviewDb> schema) { |
| this.realm = realm; |
| this.byEmail = byEmail; |
| this.byId = byId; |
| this.schema = schema; |
| } |
| |
| /** |
| * Locate exactly one account matching the name or name/email string. |
| * |
| * @param nameOrEmail a string of the format |
| * "Full Name <email@example>", just the email address |
| * ("email@example"), a full name ("Full Name"), an account id |
| * ("18419") or an user name ("username"). |
| * @return the single account that matches; null if no account matches or |
| * there are multiple candidates. |
| */ |
| public Account find(final String nameOrEmail) throws OrmException { |
| Set<Account.Id> r = findAll(nameOrEmail); |
| return r.size() == 1 ? byId.get(r.iterator().next()).getAccount() : null; |
| } |
| |
| /** |
| * Find all accounts matching the name or name/email string. |
| * |
| * @param nameOrEmail a string of the format |
| * "Full Name <email@example>", just the email address |
| * ("email@example"), a full name ("Full Name"), an account id |
| * ("18419") or an user name ("username"). |
| * @return the accounts that match, empty collection if none. Never null. |
| */ |
| public Set<Account.Id> findAll(String nameOrEmail) throws OrmException { |
| Matcher m = Pattern.compile("^.* \\(([1-9][0-9]*)\\)$").matcher(nameOrEmail); |
| if (m.matches()) { |
| Account.Id id = Account.Id.parse(m.group(1)); |
| if (exists(id)) { |
| return Collections.singleton(id); |
| } else { |
| return Collections.emptySet(); |
| } |
| } |
| |
| if (nameOrEmail.matches("^[1-9][0-9]*$")) { |
| Account.Id id = Account.Id.parse(nameOrEmail); |
| if (exists(id)) { |
| return Collections.singleton(id); |
| } else { |
| return Collections.emptySet(); |
| } |
| } |
| |
| if (nameOrEmail.matches(Account.USER_NAME_PATTERN)) { |
| AccountState who = byId.getByUsername(nameOrEmail); |
| if (who != null) { |
| return Collections.singleton(who.getAccount().getId()); |
| } |
| } |
| |
| return findAllByNameOrEmail(nameOrEmail); |
| } |
| |
| private boolean exists(Account.Id id) throws OrmException { |
| return schema.get().accounts().get(id) != null; |
| } |
| |
| /** |
| * Locate exactly one account matching the name or name/email string. |
| * |
| * @param nameOrEmail a string of the format |
| * "Full Name <email@example>", just the email address |
| * ("email@example"), a full name ("Full Name"). |
| * @return the single account that matches; null if no account matches or |
| * there are multiple candidates. |
| */ |
| public Account findByNameOrEmail(final String nameOrEmail) |
| throws OrmException { |
| Set<Account.Id> r = findAllByNameOrEmail(nameOrEmail); |
| return r.size() == 1 ? byId.get(r.iterator().next()).getAccount() : null; |
| } |
| |
| /** |
| * Locate exactly one account matching the name or name/email string. |
| * |
| * @param nameOrEmail a string of the format |
| * "Full Name <email@example>", just the email address |
| * ("email@example"), a full name ("Full Name"). |
| * @return the accounts that match, empty collection if none. Never null. |
| */ |
| public Set<Account.Id> findAllByNameOrEmail(final String nameOrEmail) |
| throws OrmException { |
| final int lt = nameOrEmail.indexOf('<'); |
| final int gt = nameOrEmail.indexOf('>'); |
| if (lt >= 0 && gt > lt && nameOrEmail.contains("@")) { |
| Set<Account.Id> ids = byEmail.get(nameOrEmail.substring(lt + 1, gt)); |
| if (ids.isEmpty() || ids.size() == 1) { |
| return ids; |
| } |
| |
| // more than one match, try to return the best one |
| String name = nameOrEmail.substring(0, lt - 1); |
| Set<Account.Id> nameMatches = Sets.newHashSet(); |
| for (Account.Id id : ids) { |
| Account a = byId.get(id).getAccount(); |
| if (name.equals(a.getFullName())) { |
| nameMatches.add(id); |
| } |
| } |
| return nameMatches.isEmpty() ? ids : nameMatches; |
| } |
| |
| if (nameOrEmail.contains("@")) { |
| return byEmail.get(nameOrEmail); |
| } |
| |
| final Account.Id id = realm.lookup(nameOrEmail); |
| if (id != null) { |
| return Collections.singleton(id); |
| } |
| |
| List<Account> m = schema.get().accounts().byFullName(nameOrEmail).toList(); |
| if (m.size() == 1) { |
| return Collections.singleton(m.get(0).getId()); |
| } |
| |
| // At this point we have no clue. Just perform a whole bunch of suggestions |
| // and pray we come up with a reasonable result list. |
| // |
| Set<Account.Id> result = new HashSet<Account.Id>(); |
| String a = nameOrEmail; |
| String b = nameOrEmail + "\u9fa5"; |
| for (Account act : schema.get().accounts().suggestByFullName(a, b, 10)) { |
| result.add(act.getId()); |
| } |
| for (AccountExternalId extId : schema |
| .get() |
| .accountExternalIds() |
| .suggestByKey( |
| new AccountExternalId.Key(AccountExternalId.SCHEME_USERNAME, a), |
| new AccountExternalId.Key(AccountExternalId.SCHEME_USERNAME, b), 10)) { |
| result.add(extId.getAccountId()); |
| } |
| for (AccountExternalId extId : schema.get().accountExternalIds() |
| .suggestByEmailAddress(a, b, 10)) { |
| result.add(extId.getAccountId()); |
| } |
| return result; |
| } |
| } |