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Change blog descriptor format to include RSS feed flag

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This now also handles the case where an RSS blog is deleted via the blog
deletion option and not the feed management.
This commit is contained in:
Torsten Grote
2017-04-10 18:57:14 -03:00
parent 58b9efb24c
commit d40a058ef5
12 changed files with 77 additions and 48 deletions
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4
bramble-core/src/main/java/org/briarproject/bramble/db/JdbcDatabase.java
View File

@@ -68,8 +68,8 @@ import static org.briarproject.bramble.db.ExponentialBackoff.calculateExpiry;
@NotNullByDefault
abstract class JdbcDatabase implements Database<Connection> {
private static final int SCHEMA_VERSION = 29;
private static final int MIN_SCHEMA_VERSION = 29;
private static final int SCHEMA_VERSION = 30;
private static final int MIN_SCHEMA_VERSION = 30;
private static final String CREATE_SETTINGS =
"CREATE TABLE settings"

8
briar-api/src/main/java/org/briarproject/briar/api/blog/Blog.java
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@@ -13,16 +13,22 @@ import javax.annotation.concurrent.Immutable;
public class Blog extends BaseGroup implements Shareable {
private final Author author;
private final boolean rssFeed;
public Blog(Group group, Author author) {
public Blog(Group group, Author author, boolean rssFeed) {
super(group);
this.author = author;
this.rssFeed = rssFeed;
}
public Author getAuthor() {
return author;
}
public boolean isRssFeed() {
return rssFeed;
}
@Override
public boolean equals(Object o) {
return o instanceof Blog && super.equals(o);

5
briar-api/src/main/java/org/briarproject/briar/api/blog/BlogFactory.java
View File

@@ -13,6 +13,11 @@ public interface BlogFactory {
*/
Blog createBlog(Author author);
/**
* Creates a RSS feed blog for a given author.
*/
Blog createFeedBlog(Author author);
/**
* Parses a blog with the given Group
*/

14
briar-api/src/main/java/org/briarproject/briar/api/feed/Feed.java
View File

@@ -93,21 +93,9 @@ public class Feed {
if (this == o) return true;
if (o instanceof Feed) {
Feed f = (Feed) o;
return url.equals(f.url) && blog.equals(f.blog) &&
equalsWithNull(title, f.title) &&
equalsWithNull(description, f.description) &&
equalsWithNull(author, f.author) &&
added == f.added &&
updated == f.updated &&
lastEntryTime == f.lastEntryTime;
return blog.equals(f.blog);
}
return false;
}
private boolean equalsWithNull(@Nullable Object a, @Nullable Object b) {
if (a == b) return true;
if (a == null || b == null) return false;
return a.equals(b);
}
}

16
briar-core/src/main/java/org/briarproject/briar/blog/BlogFactoryImpl.java
View File

@@ -33,15 +33,25 @@ class BlogFactoryImpl implements BlogFactory {
@Override
public Blog createBlog(Author a) {
return createBlog(a, false);
}
@Override
public Blog createFeedBlog(Author a) {
return createBlog(a, true);
}
private Blog createBlog(Author a, boolean rssFeed) {
try {
BdfList blog = BdfList.of(
a.getName(),
a.getPublicKey()
a.getPublicKey(),
rssFeed
);
byte[] descriptor = clientHelper.toByteArray(blog);
Group g = groupFactory
.createGroup(BlogManagerImpl.CLIENT_ID, descriptor);
return new Blog(g, a);
return new Blog(g, a, rssFeed);
} catch (FormatException e) {
throw new RuntimeException(e);
}
@@ -54,7 +64,7 @@ class BlogFactoryImpl implements BlogFactory {
BdfList blog = clientHelper.toList(descriptor);
Author a =
authorFactory.createAuthor(blog.getString(0), blog.getRaw(1));
return new Blog(g, a);
return new Blog(g, a, blog.getBoolean(2));
}
}

4
briar-core/src/main/java/org/briarproject/briar/feed/FeedFactoryImpl.java
View File

@@ -52,7 +52,7 @@ class FeedFactoryImpl implements FeedFactory {
.createLocalAuthor(syndFeed.getTitle(),
keyPair.getPublic().getEncoded(),
keyPair.getPrivate().getEncoded());
Blog blog = blogFactory.createBlog(localAuthor);
Blog blog = blogFactory.createFeedBlog(localAuthor);
long added = clock.currentTimeMillis();
return new Feed(url, blog, localAuthor, added);
@@ -75,7 +75,7 @@ class FeedFactoryImpl implements FeedFactory {
byte[] privateKey = d.getRaw(KEY_PRIVATE_KEY);
LocalAuthor localAuthor = authorFactory
.createLocalAuthor(blogTitle, publicKey, privateKey);
Blog blog = blogFactory.createBlog(localAuthor);
Blog blog = blogFactory.createFeedBlog(localAuthor);
String title = d.getOptionalString(KEY_FEED_TITLE);
String desc = d.getOptionalString(KEY_FEED_DESC);

32
briar-core/src/main/java/org/briarproject/briar/feed/FeedManagerImpl.java
View File

@@ -30,6 +30,7 @@ import org.briarproject.bramble.api.sync.GroupId;
import org.briarproject.bramble.api.system.Clock;
import org.briarproject.bramble.api.system.Scheduler;
import org.briarproject.bramble.util.StringUtils;
import org.briarproject.briar.api.blog.Blog;
import org.briarproject.briar.api.blog.BlogManager;
import org.briarproject.briar.api.blog.BlogPost;
import org.briarproject.briar.api.blog.BlogPostFactory;
@@ -74,7 +75,8 @@ import static org.briarproject.briar.util.HtmlUtils.clean;
@ThreadSafe
@NotNullByDefault
class FeedManagerImpl implements FeedManager, Client, EventListener {
class FeedManagerImpl implements FeedManager, Client, EventListener,
BlogManager.RemoveBlogHook {
private static final Logger LOG =
Logger.getLogger(FeedManagerImpl.class.getName());
@@ -158,7 +160,6 @@ class FeedManagerImpl implements FeedManager, Client, EventListener {
@Override
public void addFeed(String url) throws DbException, IOException {
// TODO check for existing feed?
// fetch syndication feed to get its metadata
SyndFeed f;
try {
@@ -207,15 +208,7 @@ class FeedManagerImpl implements FeedManager, Client, EventListener {
LOG.info("Removing RSS feed...");
Transaction txn = db.startTransaction(false);
try {
List<Feed> feeds = getFeeds(txn);
for (Feed f : feeds) {
if (f.getBlogId().equals(feed.getBlogId())) {
feed = f;
feeds.remove(f);
break;
}
}
storeFeeds(txn, feeds);
// this will call removingBlog() where the feed itself gets removed
blogManager.removeBlog(txn, feed.getBlog());
db.commitTransaction(txn);
} finally {
@@ -223,6 +216,23 @@ class FeedManagerImpl implements FeedManager, Client, EventListener {
}
}
@Override
public void removingBlog(Transaction txn, Blog b) throws DbException {
if (!b.isRssFeed()) return;
// delete blog's RSS feed if we have it
boolean found = false;
List<Feed> feeds = getFeeds(txn);
for (Feed f : feeds) {
if (f.getBlogId().equals(b.getId())) {
found = true;
feeds.remove(f);
break;
}
}
if (found) storeFeeds(txn, feeds);
}
@Override
public List<Feed> getFeeds() throws DbException {
List<Feed> feeds;

5
briar-core/src/main/java/org/briarproject/briar/feed/FeedModule.java
View File

@@ -2,6 +2,7 @@ package org.briarproject.briar.feed;
import org.briarproject.bramble.api.event.EventBus;
import org.briarproject.bramble.api.lifecycle.LifecycleManager;
import org.briarproject.briar.api.blog.BlogManager;
import org.briarproject.briar.api.feed.FeedManager;
import javax.inject.Inject;
@@ -21,10 +22,12 @@ public class FeedModule {
@Provides
@Singleton
FeedManager provideFeedManager(FeedManagerImpl feedManager,
LifecycleManager lifecycleManager, EventBus eventBus) {
LifecycleManager lifecycleManager, EventBus eventBus,
BlogManager blogManager) {
lifecycleManager.registerClient(feedManager);
eventBus.addListener(feedManager);
blogManager.registerRemoveBlogHook(feedManager);
return feedManager;
}

10
briar-core/src/main/java/org/briarproject/briar/sharing/BlogSharingValidator.java
View File

@@ -39,14 +39,20 @@ class BlogSharingValidator extends SharingValidator {
@Override
protected GroupId validateDescriptor(BdfList descriptor)
throws FormatException {
checkSize(descriptor, 2);
checkSize(descriptor, 3);
String name = descriptor.getString(0);
checkLength(name, 1, MAX_AUTHOR_NAME_LENGTH);
byte[] publicKey = descriptor.getRaw(1);
checkLength(publicKey, 1, MAX_PUBLIC_KEY_LENGTH);
boolean rssFeed = descriptor.getBoolean(2);
Author author = authorFactory.createAuthor(name, publicKey);
Blog blog = blogFactory.createBlog(author);
Blog blog;
if (rssFeed) {
blog = blogFactory.createFeedBlog(author);
} else {
blog = blogFactory.createBlog(author);
}
return blog.getId();
}

2
briar-core/src/test/java/org/briarproject/briar/blog/BlogManagerImplTest.java
View File

@@ -297,7 +297,7 @@ public class BlogManagerImplTest extends BriarTestCase {
final LocalAuthor localAuthor =
new LocalAuthor(authorId, "Author", publicKey, privateKey,
created);
return new Blog(group, localAuthor);
return new Blog(group, localAuthor, false);
}
private BdfDictionary authorToBdfDictionary(Author a) {

2
briar-core/src/test/java/org/briarproject/briar/blog/BlogPostValidatorTest.java
View File

@@ -79,7 +79,7 @@ public class BlogPostValidatorTest extends BriarTestCase {
new BdfEntry(KEY_AUTHOR_NAME, author.getName()),
new BdfEntry(KEY_PUBLIC_KEY, author.getPublicKey())
);
blog = new Blog(group, author);
blog = new Blog(group, author, false);
MessageId messageId = new MessageId(TestUtils.getRandomId());
long timestamp = System.currentTimeMillis();

23
briar-core/src/test/java/org/briarproject/briar/sharing/BlogSharingValidatorTest.java
View File

@@ -23,8 +23,8 @@ public class BlogSharingValidatorTest extends SharingValidatorTest {
private final byte[] publicKey =
TestUtils.getRandomBytes(MAX_PUBLIC_KEY_LENGTH);
private final Author author = new Author(authorId, authorName, publicKey);
private final Blog blog = new Blog(group, author);
private final BdfList descriptor = BdfList.of(authorName, publicKey);
private final Blog blog = new Blog(group, author, false);
private final BdfList descriptor = BdfList.of(authorName, publicKey, false);
private final String content =
TestUtils.getRandomString(MAX_INVITATION_MESSAGE_LENGTH);
@@ -64,7 +64,7 @@ public class BlogSharingValidatorTest extends SharingValidatorTest {
@Test(expected = FormatException.class)
public void testRejectsNullBlogName() throws Exception {
BdfList invalidDescriptor = BdfList.of(null, publicKey);
BdfList invalidDescriptor = BdfList.of(null, publicKey, false);
v.validateMessage(message, group,
BdfList.of(INVITE.getValue(), previousMsgId, invalidDescriptor,
null));
@@ -72,7 +72,7 @@ public class BlogSharingValidatorTest extends SharingValidatorTest {
@Test(expected = FormatException.class)
public void testRejectsNonStringBlogName() throws Exception {
BdfList invalidDescriptor = BdfList.of(123, publicKey);
BdfList invalidDescriptor = BdfList.of(123, publicKey, false);
v.validateMessage(message, group,
BdfList.of(INVITE.getValue(), previousMsgId, invalidDescriptor,
null));
@@ -80,7 +80,7 @@ public class BlogSharingValidatorTest extends SharingValidatorTest {
@Test(expected = FormatException.class)
public void testRejectsTooShortBlogName() throws Exception {
BdfList invalidDescriptor = BdfList.of("", publicKey);
BdfList invalidDescriptor = BdfList.of("", publicKey, false);
v.validateMessage(message, group,
BdfList.of(INVITE.getValue(), previousMsgId, invalidDescriptor,
null));
@@ -89,7 +89,7 @@ public class BlogSharingValidatorTest extends SharingValidatorTest {
@Test
public void testAcceptsMinLengthBlogName() throws Exception {
String shortBlogName = TestUtils.getRandomString(1);
BdfList validDescriptor = BdfList.of(shortBlogName, publicKey);
BdfList validDescriptor = BdfList.of(shortBlogName, publicKey, false);
expectCreateBlog(shortBlogName, publicKey);
expectEncodeMetadata(INVITE);
BdfMessageContext messageContext = v.validateMessage(message, group,
@@ -102,7 +102,8 @@ public class BlogSharingValidatorTest extends SharingValidatorTest {
public void testRejectsTooLongBlogName() throws Exception {
String invalidBlogName =
TestUtils.getRandomString(MAX_BLOG_NAME_LENGTH + 1);
BdfList invalidDescriptor = BdfList.of(invalidBlogName, publicKey);
BdfList invalidDescriptor =
BdfList.of(invalidBlogName, publicKey, false);
v.validateMessage(message, group,
BdfList.of(INVITE.getValue(), previousMsgId, invalidDescriptor,
null));
@@ -110,7 +111,7 @@ public class BlogSharingValidatorTest extends SharingValidatorTest {
@Test(expected = FormatException.class)
public void testRejectsNullPublicKey() throws Exception {
BdfList invalidDescriptor = BdfList.of(authorName, null);
BdfList invalidDescriptor = BdfList.of(authorName, null, false);
v.validateMessage(message, group,
BdfList.of(INVITE.getValue(), previousMsgId, invalidDescriptor,
null));
@@ -118,7 +119,7 @@ public class BlogSharingValidatorTest extends SharingValidatorTest {
@Test(expected = FormatException.class)
public void testRejectsNonRawPublicKey() throws Exception {
BdfList invalidDescriptor = BdfList.of(authorName, 123);
BdfList invalidDescriptor = BdfList.of(authorName, 123, false);
v.validateMessage(message, group,
BdfList.of(INVITE.getValue(), previousMsgId, invalidDescriptor,
null));
@@ -127,7 +128,7 @@ public class BlogSharingValidatorTest extends SharingValidatorTest {
@Test(expected = FormatException.class)
public void testRejectsTooLongPublicKey() throws Exception {
byte[] invalidKey = TestUtils.getRandomBytes(MAX_PUBLIC_KEY_LENGTH + 1);
BdfList invalidDescriptor = BdfList.of(authorName, invalidKey);
BdfList invalidDescriptor = BdfList.of(authorName, invalidKey, false);
v.validateMessage(message, group,
BdfList.of(INVITE.getValue(), previousMsgId, invalidDescriptor,
null));
@@ -136,7 +137,7 @@ public class BlogSharingValidatorTest extends SharingValidatorTest {
@Test
public void testAcceptsMinLengthPublicKey() throws Exception {
byte[] key = TestUtils.getRandomBytes(1);
BdfList validDescriptor = BdfList.of(authorName, key);
BdfList validDescriptor = BdfList.of(authorName, key, false);
expectCreateBlog(authorName, key);
expectEncodeMetadata(INVITE);