LCOV - code coverage report
Current view: top level - server/restapi/change - Revisions.java (source / functions) Hit Total Coverage
Test: _coverage_report.dat Lines: 54 59 91.5 %
Date: 2022-11-19 15:00:39 Functions: 8 8 100.0 %

          Line data    Source code
       1             : // Copyright (C) 2012 The Android Open Source Project
       2             : //
       3             : // Licensed under the Apache License, Version 2.0 (the "License");
       4             : // you may not use this file except in compliance with the License.
       5             : // You may obtain a copy of the License at
       6             : //
       7             : // http://www.apache.org/licenses/LICENSE-2.0
       8             : //
       9             : // Unless required by applicable law or agreed to in writing, software
      10             : // distributed under the License is distributed on an "AS IS" BASIS,
      11             : // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      12             : // See the License for the specific language governing permissions and
      13             : // limitations under the License.
      14             : 
      15             : package com.google.gerrit.server.restapi.change;
      16             : 
      17             : import com.google.common.base.Joiner;
      18             : import com.google.common.collect.ImmutableList;
      19             : import com.google.common.collect.Lists;
      20             : import com.google.gerrit.common.Nullable;
      21             : import com.google.gerrit.entities.PatchSet;
      22             : import com.google.gerrit.extensions.registration.DynamicMap;
      23             : import com.google.gerrit.extensions.restapi.AuthException;
      24             : import com.google.gerrit.extensions.restapi.ChildCollection;
      25             : import com.google.gerrit.extensions.restapi.IdString;
      26             : import com.google.gerrit.extensions.restapi.ResourceNotFoundException;
      27             : import com.google.gerrit.extensions.restapi.RestView;
      28             : import com.google.gerrit.git.ObjectIds;
      29             : import com.google.gerrit.server.PatchSetUtil;
      30             : import com.google.gerrit.server.change.ChangeResource;
      31             : import com.google.gerrit.server.change.RevisionResource;
      32             : import com.google.gerrit.server.edit.ChangeEdit;
      33             : import com.google.gerrit.server.edit.ChangeEditUtil;
      34             : import com.google.gerrit.server.permissions.ChangePermission;
      35             : import com.google.gerrit.server.permissions.PermissionBackend;
      36             : import com.google.gerrit.server.permissions.PermissionBackendException;
      37             : import com.google.gerrit.server.project.ProjectCache;
      38             : import com.google.gerrit.server.project.ProjectState;
      39             : import com.google.inject.Inject;
      40             : import com.google.inject.Singleton;
      41             : import java.io.IOException;
      42             : import java.util.ArrayList;
      43             : import java.util.List;
      44             : import java.util.Optional;
      45             : import org.eclipse.jgit.lib.ObjectId;
      46             : import org.eclipse.jgit.revwalk.RevCommit;
      47             : 
      48             : @Singleton
      49             : public class Revisions implements ChildCollection<ChangeResource, RevisionResource> {
      50             :   private final DynamicMap<RestView<RevisionResource>> views;
      51             :   private final ChangeEditUtil editUtil;
      52             :   private final PatchSetUtil psUtil;
      53             :   private final PermissionBackend permissionBackend;
      54             :   private final ProjectCache projectCache;
      55             : 
      56             :   @Inject
      57             :   Revisions(
      58             :       DynamicMap<RestView<RevisionResource>> views,
      59             :       ChangeEditUtil editUtil,
      60             :       PatchSetUtil psUtil,
      61             :       PermissionBackend permissionBackend,
      62         145 :       ProjectCache projectCache) {
      63         145 :     this.views = views;
      64         145 :     this.editUtil = editUtil;
      65         145 :     this.psUtil = psUtil;
      66         145 :     this.permissionBackend = permissionBackend;
      67         145 :     this.projectCache = projectCache;
      68         145 :   }
      69             : 
      70             :   @Override
      71             :   public DynamicMap<RestView<RevisionResource>> views() {
      72          11 :     return views;
      73             :   }
      74             : 
      75             :   @Override
      76             :   public RestView<ChangeResource> list() throws ResourceNotFoundException {
      77           1 :     throw new ResourceNotFoundException();
      78             :   }
      79             : 
      80             :   @Override
      81             :   public RevisionResource parse(ChangeResource change, IdString id)
      82             :       throws ResourceNotFoundException, AuthException, IOException, PermissionBackendException {
      83          80 :     if (id.get().equals("current")) {
      84          76 :       PatchSet ps = psUtil.current(change.getNotes());
      85          76 :       if (ps != null && visible(change)) {
      86          76 :         return RevisionResource.createNonCacheable(change, ps);
      87             :       }
      88           0 :       throw new ResourceNotFoundException(id);
      89             :     }
      90             : 
      91          42 :     List<RevisionResource> match = Lists.newArrayListWithExpectedSize(2);
      92          42 :     for (RevisionResource rsrc : find(change, id.get())) {
      93          42 :       if (visible(change)) {
      94          42 :         match.add(rsrc);
      95             :       }
      96          42 :     }
      97          42 :     switch (match.size()) {
      98             :       case 0:
      99           1 :         throw new ResourceNotFoundException(id);
     100             :       case 1:
     101          42 :         return match.get(0);
     102             :       default:
     103           0 :         throw new ResourceNotFoundException(
     104           0 :             "Multiple patch sets for \"" + id.get() + "\": " + Joiner.on("; ").join(match));
     105             :     }
     106             :   }
     107             : 
     108             :   private boolean visible(ChangeResource change) throws PermissionBackendException {
     109          80 :     return permissionBackend
     110          80 :             .user(change.getUser())
     111          80 :             .change(change.getNotes())
     112          80 :             .test(ChangePermission.READ)
     113          80 :         && projectCache.get(change.getProject()).map(ProjectState::statePermitsRead).orElse(false);
     114             :   }
     115             : 
     116             :   private ImmutableList<RevisionResource> find(ChangeResource change, String id)
     117             :       throws IOException, AuthException {
     118          42 :     if (id.equals("0") || id.equals("edit")) {
     119           4 :       return loadEdit(change, null);
     120          42 :     } else if (id.length() < 6 && id.matches("^[1-9][0-9]{0,4}$")) {
     121             :       // Legacy patch set number syntax.
     122          33 :       return byLegacyPatchSetId(change, id);
     123          22 :     } else if (id.length() < 4 || id.length() > ObjectIds.STR_LEN) {
     124             :       // Require a minimum of 4 digits.
     125             :       // Impossibly long identifier will never match.
     126           0 :       return ImmutableList.of();
     127             :     } else {
     128          22 :       List<RevisionResource> out = new ArrayList<>();
     129          22 :       for (PatchSet ps : psUtil.byChange(change.getNotes())) {
     130          22 :         if (ObjectIds.matchesAbbreviation(ps.commitId(), id)) {
     131          22 :           out.add(new RevisionResource(change, ps));
     132             :         }
     133          22 :       }
     134             :       // Not an existing patch set on a change, but might be an edit.
     135          22 :       if (out.isEmpty() && ObjectId.isId(id)) {
     136           2 :         return loadEdit(change, ObjectId.fromString(id));
     137             :       }
     138          22 :       return ImmutableList.copyOf(out);
     139             :     }
     140             :   }
     141             : 
     142             :   private ImmutableList<RevisionResource> byLegacyPatchSetId(ChangeResource change, String id) {
     143          33 :     PatchSet ps = psUtil.get(change.getNotes(), PatchSet.id(change.getId(), Integer.parseInt(id)));
     144          33 :     if (ps != null) {
     145          33 :       return ImmutableList.of(new RevisionResource(change, ps));
     146             :     }
     147           0 :     return ImmutableList.of();
     148             :   }
     149             : 
     150             :   private ImmutableList<RevisionResource> loadEdit(
     151             :       ChangeResource change, @Nullable ObjectId commitId) throws AuthException, IOException {
     152           5 :     Optional<ChangeEdit> edit = editUtil.byChange(change.getNotes(), change.getUser());
     153           5 :     if (edit.isPresent()) {
     154           4 :       RevCommit editCommit = edit.get().getEditCommit();
     155             :       PatchSet ps =
     156           4 :           PatchSet.builder()
     157           4 :               .id(PatchSet.id(change.getId(), 0))
     158           4 :               .commitId(editCommit)
     159           4 :               .uploader(change.getUser().getAccountId())
     160           4 :               .createdOn(editCommit.getCommitterIdent().getWhenAsInstant())
     161           4 :               .build();
     162           4 :       if (commitId == null || editCommit.equals(commitId)) {
     163           4 :         return ImmutableList.of(new RevisionResource(change, ps, edit));
     164             :       }
     165             :     }
     166           1 :     return ImmutableList.of();
     167             :   }
     168             : }

Generated by: LCOV version 1.16+git.20220603.dfeb750