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com.google.gerrit.server.restapi.project.ListProjectsImpl Maven / Gradle / Ivy
// 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.restapi.project;
import static com.google.common.base.Strings.emptyToNull;
import static com.google.common.base.Strings.isNullOrEmpty;
import static com.google.common.collect.Ordering.natural;
import static com.google.gerrit.extensions.client.ProjectState.HIDDEN;
import static java.nio.charset.StandardCharsets.UTF_8;
import com.google.common.base.Joiner;
import com.google.common.base.Throwables;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSortedMap;
import com.google.common.collect.Iterables;
import com.google.common.flogger.FluentLogger;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import com.google.gerrit.common.Nullable;
import com.google.gerrit.entities.AccountGroup;
import com.google.gerrit.entities.GroupReference;
import com.google.gerrit.entities.Project;
import com.google.gerrit.exceptions.NoSuchGroupException;
import com.google.gerrit.exceptions.StorageException;
import com.google.gerrit.extensions.common.ProjectInfo;
import com.google.gerrit.extensions.common.WebLinkInfo;
import com.google.gerrit.extensions.restapi.AuthException;
import com.google.gerrit.extensions.restapi.BadRequestException;
import com.google.gerrit.extensions.restapi.BinaryResult;
import com.google.gerrit.extensions.restapi.MethodNotAllowedException;
import com.google.gerrit.extensions.restapi.Response;
import com.google.gerrit.extensions.restapi.TopLevelResource;
import com.google.gerrit.extensions.restapi.Url;
import com.google.gerrit.index.project.ProjectField;
import com.google.gerrit.index.project.ProjectIndexCollection;
import com.google.gerrit.json.OutputFormat;
import com.google.gerrit.server.CurrentUser;
import com.google.gerrit.server.WebLinks;
import com.google.gerrit.server.account.GroupControl;
import com.google.gerrit.server.config.GerritServerConfig;
import com.google.gerrit.server.git.GitRepositoryManager;
import com.google.gerrit.server.group.GroupResolver;
import com.google.gerrit.server.ioutil.RegexListSearcher;
import com.google.gerrit.server.ioutil.StringUtil;
import com.google.gerrit.server.permissions.PermissionBackend;
import com.google.gerrit.server.permissions.PermissionBackendException;
import com.google.gerrit.server.permissions.ProjectPermission;
import com.google.gerrit.server.permissions.RefPermission;
import com.google.gerrit.server.project.ProjectCache;
import com.google.gerrit.server.project.ProjectState;
import com.google.gerrit.server.util.TreeFormatter;
import com.google.gson.reflect.TypeToken;
import com.google.inject.Inject;
import com.google.inject.Provider;
import java.io.BufferedWriter;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.NavigableSet;
import java.util.Optional;
import java.util.SortedMap;
import java.util.TreeMap;
import java.util.TreeSet;
import java.util.stream.Stream;
import java.util.stream.StreamSupport;
import org.eclipse.jgit.errors.RepositoryNotFoundException;
import org.eclipse.jgit.lib.Config;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.Repository;
/**
* List projects visible to the calling user.
*
* Implement {@code GET /projects/}, without a {@code query=} parameter.
*/
public class ListProjectsImpl extends AbstractListProjects {
private static final FluentLogger logger = FluentLogger.forEnclosingClass();
private final CurrentUser currentUser;
private final ProjectCache projectCache;
private final GroupResolver groupResolver;
private final GroupControl.Factory groupControlFactory;
private final GitRepositoryManager repoManager;
private final PermissionBackend permissionBackend;
private final ProjectNode.Factory projectNodeFactory;
private final WebLinks webLinks;
@Override
public void setFormat(OutputFormat fmt) {
format = fmt;
}
@Override
public void addShowBranch(String branch) {
showBranch.add(branch);
}
@Override
public void setShowTree(boolean showTree) {
this.showTree = showTree;
}
@Override
public void setFilterType(FilterType type) {
this.type = type;
}
@Override
public void setShowDescription(boolean showDescription) {
this.showDescription = showDescription;
}
@Override
public void setAll(boolean all) {
this.all = all;
}
@Override
public void setState(com.google.gerrit.extensions.client.ProjectState state) {
this.state = state;
}
@Override
public void setLimit(int limit) {
this.limit = limit;
}
@Override
public void setStart(int start) {
this.start = start;
}
@Override
public void setMatchPrefix(String matchPrefix) {
this.matchPrefix = matchPrefix;
}
@Override
public void setMatchSubstring(String matchSubstring) {
this.matchSubstring = matchSubstring;
}
@Override
public void setMatchRegex(String matchRegex) {
this.matchRegex = matchRegex;
}
@Override
public void setGroupUuid(AccountGroup.UUID groupUuid) {
this.groupUuid = groupUuid;
}
@Deprecated private OutputFormat format = OutputFormat.TEXT;
private final List showBranch = new ArrayList<>();
private boolean showTree;
private FilterType type = FilterType.ALL;
private boolean showDescription;
private boolean all;
private com.google.gerrit.extensions.client.ProjectState state;
private int limit;
private int start;
private String matchPrefix;
private String matchSubstring;
private String matchRegex;
private AccountGroup.UUID groupUuid;
private final Provider queryProjectsProvider;
private final boolean listProjectsFromIndex;
private final ProjectIndexCollection projectIndexes;
@Inject
protected ListProjectsImpl(
CurrentUser currentUser,
ProjectCache projectCache,
GroupResolver groupResolver,
GroupControl.Factory groupControlFactory,
GitRepositoryManager repoManager,
PermissionBackend permissionBackend,
ProjectNode.Factory projectNodeFactory,
WebLinks webLinks,
Provider queryProjectsProvider,
@GerritServerConfig Config config,
ProjectIndexCollection projectIndexes) {
this.currentUser = currentUser;
this.projectCache = projectCache;
this.groupResolver = groupResolver;
this.groupControlFactory = groupControlFactory;
this.repoManager = repoManager;
this.permissionBackend = permissionBackend;
this.projectNodeFactory = projectNodeFactory;
this.webLinks = webLinks;
this.queryProjectsProvider = queryProjectsProvider;
this.listProjectsFromIndex = config.getBoolean("gerrit", "listProjectsFromIndex", false);
this.projectIndexes = projectIndexes;
}
public List getShowBranch() {
return showBranch;
}
public boolean isShowTree() {
return showTree;
}
public boolean isShowDescription() {
return showDescription;
}
public OutputFormat getFormat() {
return format;
}
@Override
public Response apply(TopLevelResource resource)
throws BadRequestException, PermissionBackendException {
if (format == OutputFormat.TEXT) {
ByteArrayOutputStream buf = new ByteArrayOutputStream();
displayToStream(buf);
return Response.ok(
BinaryResult.create(buf.toByteArray())
.setContentType("text/plain")
.setCharacterEncoding(UTF_8));
}
return Response.ok(apply());
}
@Override
public SortedMap apply()
throws BadRequestException, PermissionBackendException {
Optional projectQuery = expressAsProjectsQuery();
if (projectQuery.isPresent()) {
return applyAsQuery(projectQuery.get());
}
format = OutputFormat.JSON;
return display(null);
}
private Optional expressAsProjectsQuery() throws BadRequestException {
return listProjectsFromIndex
&& !all
&& state != HIDDEN
&& (isNullOrEmpty(matchPrefix)
|| projectIndexes
.getSearchIndex()
.getSchema()
.hasField(ProjectField.PREFIX_NAME_SPEC))
&& isNullOrEmpty(matchRegex)
&& isNullOrEmpty(
matchSubstring) // TODO: see https://issues.gerritcodereview.com/issues/40010295
&& type == FilterType.ALL
&& showBranch.isEmpty()
&& !showTree
? Optional.of(toQuery())
: Optional.empty();
}
private String toQuery() throws BadRequestException {
// QueryProjects supports specifying matchPrefix and matchSubstring at the same time, but to
// keep the behavior consistent regardless of whether 'gerrit.listProjectsFromIndex' is true or
// false, disallow specifying both at the same time here. This way
// 'gerrit.listProjectsFromIndex' can be troggled without breaking any caller.
if (matchPrefix != null) {
checkMatchOptions(matchSubstring == null);
} else if (matchSubstring != null) {
checkMatchOptions(matchPrefix == null);
}
List queries = new ArrayList<>();
if (state != null) {
queries.add(String.format("(state:%s)", state.name()));
}
if (!isNullOrEmpty(matchPrefix)) {
queries.add(String.format("prefix:%s", matchPrefix));
}
if (!isNullOrEmpty(matchSubstring)) {
queries.add(String.format("substring:%s", matchSubstring));
}
return queries.isEmpty() ? "" : Joiner.on(" AND ").join(queries);
}
private SortedMap applyAsQuery(String query) throws BadRequestException {
try {
return queryProjectsProvider
.get()
.withQuery(query)
.withStart(start)
.withLimit(limit)
.apply()
.stream()
.collect(
ImmutableSortedMap.toImmutableSortedMap(
natural(), p -> p.name, p -> showDescription ? p : nullifyDescription(p)));
} catch (StorageException | MethodNotAllowedException e) {
logger.atWarning().withCause(e).log(
"Internal error while processing the query '%s' request", query);
throw new BadRequestException("Internal error while processing the query request");
}
}
private ProjectInfo nullifyDescription(ProjectInfo p) {
p.description = null;
return p;
}
private void printQueryResults(String query, PrintWriter out) throws BadRequestException {
try {
if (format.isJson()) {
format.newGson().toJson(applyAsQuery(query), out);
} else {
newProjectsNamesStream(query).forEach(out::println);
}
out.flush();
} catch (StorageException | MethodNotAllowedException e) {
logger.atWarning().withCause(e).log(
"Internal error while processing the query '%s' request", query);
throw new BadRequestException("Internal error while processing the query request");
}
}
private Stream newProjectsNamesStream(String query)
throws MethodNotAllowedException, BadRequestException {
Stream projects =
queryProjectsProvider.get().withQuery(query).apply().stream().map(p -> p.name).skip(start);
if (limit > 0) {
projects = projects.limit(limit);
}
return projects;
}
public void displayToStream(OutputStream displayOutputStream)
throws BadRequestException, PermissionBackendException {
PrintWriter stdout =
new PrintWriter(new BufferedWriter(new OutputStreamWriter(displayOutputStream, UTF_8)));
Optional projectsQuery = expressAsProjectsQuery();
if (projectsQuery.isPresent()) {
printQueryResults(projectsQuery.get(), stdout);
} else {
display(stdout);
}
}
@CanIgnoreReturnValue
@Nullable
public SortedMap display(@Nullable PrintWriter stdout)
throws BadRequestException, PermissionBackendException {
if (all && state != null) {
throw new BadRequestException("'all' and 'state' may not be used together");
}
if (!isGroupVisible()) {
return Collections.emptySortedMap();
}
int foundIndex = 0;
int found = 0;
TreeMap output = new TreeMap<>();
Map hiddenNames = new HashMap<>();
Map accessibleParents = new HashMap<>();
PermissionBackend.WithUser perm = permissionBackend.user(currentUser);
final TreeMap treeMap = new TreeMap<>();
ProjectInfo lastInfo = null;
try {
Iterator projectStatesIt = filter(perm).iterator();
while (projectStatesIt.hasNext()) {
ProjectState e = projectStatesIt.next();
Project.NameKey projectName = e.getNameKey();
if (e.getProject().getState() == HIDDEN && !all && state != HIDDEN) {
// If we can't get it from the cache, pretend it's not present.
// If all wasn't selected, and it's HIDDEN, pretend it's not present.
// If state HIDDEN wasn't selected, and it's HIDDEN, pretend it's not present.
continue;
}
if (state != null && e.getProject().getState() != state) {
continue;
}
if (groupUuid != null
&& !e.getLocalGroups()
.contains(GroupReference.forGroup(groupResolver.parseId(groupUuid.get())))) {
continue;
}
if (showTree && !format.isJson()) {
treeMap.put(projectName, projectNodeFactory.create(e.getProject(), true));
continue;
}
if (foundIndex++ < start) {
continue;
}
if (limit > 0 && ++found > limit) {
if (lastInfo != null) {
lastInfo._moreProjects = true;
}
break;
}
ProjectInfo info = new ProjectInfo();
lastInfo = info;
info.name = projectName.get();
if (showTree && format.isJson()) {
addParentProjectInfo(hiddenNames, accessibleParents, perm, e, info);
}
if (showDescription) {
info.description = emptyToNull(e.getProject().getDescription());
}
info.state = e.getProject().getState();
try {
if (!showBranch.isEmpty()) {
try (Repository git = repoManager.openRepository(projectName)) {
if (!type.matches(git)) {
continue;
}
List[ refs = retrieveBranchRefs(e, git);
if (!hasValidRef(refs)) {
continue;
}
addProjectBranchesInfo(info, refs);
}
} else if (!showTree && type.useMatch()) {
try (Repository git = repoManager.openRepository(projectName)) {
if (!type.matches(git)) {
continue;
}
}
}
} catch (RepositoryNotFoundException err) {
// If the Git repository is gone, the project doesn't actually exist anymore.
continue;
} catch (IOException err) {
logger.atWarning().withCause(err).log("Unexpected error reading %s", projectName);
continue;
}
ImmutableList] links = webLinks.getProjectLinks(projectName.get());
info.webLinks = links.isEmpty() ? null : links;
if (stdout == null || format.isJson()) {
output.put(info.name, info);
continue;
}
if (!showBranch.isEmpty()) {
printProjectBranches(stdout, info);
}
stdout.print(info.name);
if (info.description != null) {
// We still want to list every project as one-liners, hence escaping \n.
stdout.print(" - " + StringUtil.escapeString(info.description));
}
stdout.print('\n');
}
for (ProjectInfo info : output.values()) {
info.id = Url.encode(info.name);
info.name = null;
}
if (stdout == null) {
return output;
} else if (format.isJson()) {
format
.newGson()
.toJson(output, new TypeToken>() {}.getType(), stdout);
stdout.print('\n');
} else if (showTree && treeMap.size() > 0) {
printProjectTree(stdout, treeMap);
}
return null;
} finally {
if (stdout != null) {
stdout.flush();
}
}
}
private boolean isGroupVisible() {
try {
return groupUuid == null || groupControlFactory.controlFor(groupUuid).isVisible();
} catch (NoSuchGroupException ex) {
return false;
}
}
private void printProjectBranches(PrintWriter stdout, ProjectInfo info) {
for (String name : showBranch) {
String ref = info.branches != null ? info.branches.get(name) : null;
if (ref == null) {
// Print stub (forty '-' symbols)
ref = "----------------------------------------";
}
stdout.print(ref);
stdout.print(' ');
}
}
private void addProjectBranchesInfo(ProjectInfo info, List[ refs) {
for (int i = 0; i < showBranch.size(); i++) {
Ref ref = refs.get(i);
if (ref != null && ref.getObjectId() != null) {
if (info.branches == null) {
info.branches = new LinkedHashMap<>();
}
info.branches.put(showBranch.get(i), ref.getObjectId().name());
}
}
}
private List][ retrieveBranchRefs(ProjectState e, Repository git) {
if (!e.statePermitsRead()) {
return ImmutableList.of();
}
return getBranchRefs(e.getNameKey(), git);
}
private void addParentProjectInfo(
Map] hiddenNames,
Map accessibleParents,
PermissionBackend.WithUser perm,
ProjectState e,
ProjectInfo info)
throws PermissionBackendException {
ProjectState parent = Iterables.getFirst(e.parents(), null);
if (parent != null) {
if (isParentAccessible(accessibleParents, perm, parent)) {
info.parent = parent.getName();
} else {
info.parent = hiddenNames.get(parent.getName());
if (info.parent == null) {
info.parent = "?-" + (hiddenNames.size() + 1);
hiddenNames.put(parent.getName(), info.parent);
}
}
}
}
private Stream filter(PermissionBackend.WithUser perm) throws BadRequestException {
return StreamSupport.stream(scan().spliterator(), false)
.map(
key -> {
try {
return projectCache.get(key);
} catch (StorageException e) {
if (Throwables.getCausalChain(e).stream().anyMatch(IOException.class::isInstance)) {
logger.atSevere().log(
"Unable to load project %s : %s", key.get(), e.getCause().getMessage());
}
return Optional.empty();
}
})
.filter(Optional::isPresent)
.map(Optional::get)
.filter(p -> permissionCheck(p, perm));
}
private boolean permissionCheck(ProjectState state, PermissionBackend.WithUser perm) {
// Hidden projects(permitsRead = false) should only be accessible by the project owners.
// READ_CONFIG is checked here because it's only allowed to project owners(ACCESS may also
// be allowed for other users). Allowing project owners to access here will help them to view
// and update the config of hidden projects easily.
return perm.project(state.getNameKey())
.testOrFalse(
state.statePermitsRead() ? ProjectPermission.ACCESS : ProjectPermission.READ_CONFIG);
}
private boolean isParentAccessible(
Map checked, PermissionBackend.WithUser perm, ProjectState state)
throws PermissionBackendException {
Project.NameKey name = state.getNameKey();
Boolean b = checked.get(name);
if (b == null) {
try {
// Hidden projects(permitsRead = false) should only be accessible by the project owners.
// READ_CONFIG is checked here because it's only allowed to project owners(ACCESS may also
// be allowed for other users). Allowing project owners to access here will help them to
// view
// and update the config of hidden projects easily.
ProjectPermission permissionToCheck =
state.statePermitsRead() ? ProjectPermission.ACCESS : ProjectPermission.READ_CONFIG;
perm.project(name).check(permissionToCheck);
b = true;
} catch (AuthException denied) {
b = false;
}
checked.put(name, b);
}
return b;
}
private Stream scan() throws BadRequestException {
if (matchPrefix != null) {
checkMatchOptions(matchSubstring == null && matchRegex == null);
return projectCache.byName(matchPrefix).stream();
} else if (matchSubstring != null) {
checkMatchOptions(matchPrefix == null && matchRegex == null);
return projectCache.all().stream()
.filter(
p -> p.get().toLowerCase(Locale.US).contains(matchSubstring.toLowerCase(Locale.US)));
} else if (matchRegex != null) {
checkMatchOptions(matchPrefix == null && matchSubstring == null);
RegexListSearcher searcher;
try {
searcher = new RegexListSearcher<>(matchRegex, Project.NameKey::get);
} catch (IllegalArgumentException e) {
throw new BadRequestException(e.getMessage());
}
return searcher.search(projectCache.all().asList());
} else {
return projectCache.all().stream();
}
}
private static void checkMatchOptions(boolean cond) throws BadRequestException {
if (!cond) {
throw new BadRequestException("specify exactly one of p/m/r");
}
}
private void printProjectTree(
final PrintWriter stdout, TreeMap treeMap) {
final NavigableSet sortedNodes = new TreeSet<>();
// Builds the inheritance tree using a list.
//
for (ProjectNode key : treeMap.values()) {
if (key.isAllProjects()) {
sortedNodes.add(key);
continue;
}
ProjectNode node = treeMap.get(key.getParentName());
if (node != null) {
node.addChild(key);
} else {
sortedNodes.add(key);
}
}
final TreeFormatter treeFormatter = new TreeFormatter(stdout);
treeFormatter.printTree(sortedNodes);
stdout.flush();
}
private List[ getBranchRefs(Project.NameKey projectName, Repository git) {
Ref[] result = new Ref[showBranch.size()];
try {
PermissionBackend.ForProject perm = permissionBackend.user(currentUser).project(projectName);
for (int i = 0; i < showBranch.size(); i++) {
Ref ref = git.findRef(showBranch.get(i));
if (ref != null && ref.getObjectId() != null) {
try {
perm.ref(ref.getLeaf().getName()).check(RefPermission.READ);
result[i] = ref;
} catch (AuthException e) {
continue;
}
}
}
} catch (IOException | PermissionBackendException e) {
// Fall through and return what is available.
}
return Arrays.asList(result);
}
private static boolean hasValidRef(List][ refs) {
for (Ref ref : refs) {
if (ref != null) {
return true;
}
}
return false;
}
}
]
