package net.pterodactylus.sone.core;
+import static com.google.common.base.Optional.absent;
+import static com.google.common.base.Optional.fromNullable;
+import static com.google.common.base.Optional.of;
+
import java.io.InputStream;
-import java.net.MalformedURLException;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import net.pterodactylus.sone.data.Profile;
import net.pterodactylus.sone.data.Sone;
import net.pterodactylus.sone.data.impl.DefaultSone;
+import net.pterodactylus.sone.database.Database;
import net.pterodactylus.sone.database.ImageBuilder.ImageCreated;
import net.pterodactylus.sone.database.PostBuilder;
import net.pterodactylus.sone.database.PostBuilder.PostCreated;
import net.pterodactylus.sone.database.PostReplyBuilder;
import net.pterodactylus.sone.database.PostReplyBuilder.PostReplyCreated;
-import net.pterodactylus.sone.database.memory.MemoryDatabase;
import net.pterodactylus.util.number.Numbers;
import net.pterodactylus.util.xml.SimpleXML;
import net.pterodactylus.util.xml.XML;
-import freenet.keys.FreenetURI;
-
import com.google.common.base.Optional;
import com.google.common.collect.Maps;
+import com.google.common.primitives.Ints;
import org.w3c.dom.Document;
/**
private static final Logger logger = Logger.getLogger(SoneParser.class.getName());
private static final int MAX_PROTOCOL_VERSION = 0;
- private final Core core;
-
- public SoneParser(Core core) {
- this.core = core;
- }
/**
* Parses a Sone from the given input stream and creates a new Sone from the
* @param soneInputStream
* The input stream to parse the Sone from
* @return The parsed Sone
- * @throws SoneException
- * if a parse error occurs, or the protocol is invalid
*/
- public Sone parseSone(Sone originalSone, InputStream soneInputStream) throws SoneException {
+ public Optional<Sone> parseSone(Database database, Sone originalSone, InputStream soneInputStream) {
/* TODO - impose a size limit? */
Document document;
}
if (document == null) {
/* TODO - mark Sone as bad. */
- logger.log(Level.WARNING, String.format("Could not parse XML for Sone %s!", originalSone));
- return null;
+ logger.log(Level.WARNING, String.format("Could not parse XML for Sone %s!", originalSone.getId()));
+ return absent();
}
- Sone sone = new DefaultSone(new MemoryDatabase(null), originalSone.getId(), originalSone.isLocal());
-
- SimpleXML soneXml;
- try {
- soneXml = SimpleXML.fromDocument(document);
- } catch (NullPointerException npe1) {
- /* for some reason, invalid XML can cause NPEs. */
- logger.log(Level.WARNING, String.format("XML for Sone %s can not be parsed!", sone), npe1);
- return null;
+ Optional<SimpleXML> soneXml = parseXml(originalSone, document);
+ if (!soneXml.isPresent()) {
+ logger.log(Level.WARNING, String.format("XML for Sone %s can not be parsed!", originalSone.getId()));
+ return absent();
}
- Integer protocolVersion = null;
- String soneProtocolVersion = soneXml.getValue("protocol-version", null);
- if (soneProtocolVersion != null) {
- protocolVersion = Numbers.safeParseInteger(soneProtocolVersion);
- }
- if (protocolVersion == null) {
- logger.log(Level.INFO, "No protocol version found, assuming 0.");
- protocolVersion = 0;
- }
-
- if (protocolVersion < 0) {
- logger.log(Level.WARNING, String.format("Invalid protocol version: %d! Not parsing Sone.", protocolVersion));
- return null;
- }
+ Optional<Client> parsedClient = parseClient(originalSone, soneXml.get());
+ Sone sone = new DefaultSone(database, originalSone.getId(), originalSone.isLocal(), parsedClient.or(originalSone.getClient()));
- /* check for valid versions. */
- if (protocolVersion > MAX_PROTOCOL_VERSION) {
- logger.log(Level.WARNING, String.format("Unknown protocol version: %d! Not parsing Sone.", protocolVersion));
- return null;
+ Optional<Integer> protocolVersion = parseProtocolVersion(soneXml.get());
+ if (protocolVersion.isPresent()) {
+ if (protocolVersion.get() < 0) {
+ logger.log(Level.WARNING, String.format("Invalid protocol version: %d! Not parsing Sone.", protocolVersion.get()));
+ return absent();
+ }
+ if (protocolVersion.get() > MAX_PROTOCOL_VERSION) {
+ logger.log(Level.WARNING, String.format("Unknown protocol version: %d! Not parsing Sone.", protocolVersion.get()));
+ return absent();
+ }
}
- String soneTime = soneXml.getValue("time", null);
+ String soneTime = soneXml.get().getValue("time", null);
if (soneTime == null) {
/* TODO - mark Sone as bad. */
logger.log(Level.WARNING, String.format("Downloaded time for Sone %s was null!", sone));
- return null;
+ return absent();
}
try {
sone.setTime(Long.parseLong(soneTime));
} catch (NumberFormatException nfe1) {
/* TODO - mark Sone as bad. */
logger.log(Level.WARNING, String.format("Downloaded Sone %s with invalid time: %s", sone, soneTime));
- return null;
- }
-
- SimpleXML clientXml = soneXml.getNode("client");
- if (clientXml != null) {
- String clientName = clientXml.getValue("name", null);
- String clientVersion = clientXml.getValue("version", null);
- if ((clientName == null) || (clientVersion == null)) {
- logger.log(Level.WARNING, String.format("Download Sone %s with client XML but missing name or version!", sone));
- return null;
- }
- sone.setClient(new Client(clientName, clientVersion));
+ return absent();
}
- SimpleXML profileXml = soneXml.getNode("profile");
+ SimpleXML profileXml = soneXml.get().getNode("profile");
if (profileXml == null) {
/* TODO - mark Sone as bad. */
logger.log(Level.WARNING, String.format("Downloaded Sone %s has no profile!", sone));
- return null;
+ return absent();
}
/* parse profile. */
String fieldValue = fieldXml.getValue("field-value", "");
if (fieldName == null) {
logger.log(Level.WARNING, String.format("Downloaded profile field for Sone %s with missing data! Name: %s, Value: %s", sone, fieldName, fieldValue));
- return null;
+ return absent();
}
try {
profile.addField(fieldName).setValue(fieldValue);
} catch (IllegalArgumentException iae1) {
logger.log(Level.WARNING, String.format("Duplicate field: %s", fieldName), iae1);
- return null;
+ return absent();
}
}
}
/* parse posts. */
- SimpleXML postsXml = soneXml.getNode("posts");
+ SimpleXML postsXml = soneXml.get().getNode("posts");
Set<Post> posts = new HashSet<Post>();
if (postsXml == null) {
/* TODO - mark Sone as bad. */
if ((postId == null) || (postTime == null) || (postText == null)) {
/* TODO - mark Sone as bad. */
logger.log(Level.WARNING, String.format("Downloaded post for Sone %s with missing data! ID: %s, Time: %s, Text: %s", sone, postId, postTime, postText));
- return null;
+ return absent();
}
try {
PostBuilder postBuilder = sone.newPostBuilder();
/* TODO - parse time correctly. */
postBuilder.withId(postId).withTime(Long.parseLong(postTime)).withText(postText);
if ((postRecipientId != null) && (postRecipientId.length() == 43)) {
- postBuilder.to(Optional.of(postRecipientId));
+ postBuilder.to(of(postRecipientId));
}
posts.add(postBuilder.build(Optional.<PostCreated>absent()));
} catch (NumberFormatException nfe1) {
/* TODO - mark Sone as bad. */
logger.log(Level.WARNING, String.format("Downloaded post for Sone %s with invalid time: %s", sone, postTime));
- return null;
+ return absent();
}
}
}
/* parse replies. */
- SimpleXML repliesXml = soneXml.getNode("replies");
+ SimpleXML repliesXml = soneXml.get().getNode("replies");
Set<PostReply> replies = new HashSet<PostReply>();
if (repliesXml == null) {
/* TODO - mark Sone as bad. */
if ((replyId == null) || (replyPostId == null) || (replyTime == null) || (replyText == null)) {
/* TODO - mark Sone as bad. */
logger.log(Level.WARNING, String.format("Downloaded reply for Sone %s with missing data! ID: %s, Post: %s, Time: %s, Text: %s", sone, replyId, replyPostId, replyTime, replyText));
- return null;
+ return absent();
}
try {
/* TODO - parse time correctly. */
} catch (NumberFormatException nfe1) {
/* TODO - mark Sone as bad. */
logger.log(Level.WARNING, String.format("Downloaded reply for Sone %s with invalid time: %s", sone, replyTime));
- return null;
+ return absent();
}
}
}
/* parse liked post IDs. */
- SimpleXML likePostIdsXml = soneXml.getNode("post-likes");
+ SimpleXML likePostIdsXml = soneXml.get().getNode("post-likes");
Set<String> likedPostIds = new HashSet<String>();
if (likePostIdsXml == null) {
/* TODO - mark Sone as bad. */
}
/* parse liked reply IDs. */
- SimpleXML likeReplyIdsXml = soneXml.getNode("reply-likes");
+ SimpleXML likeReplyIdsXml = soneXml.get().getNode("reply-likes");
Set<String> likedReplyIds = new HashSet<String>();
if (likeReplyIdsXml == null) {
/* TODO - mark Sone as bad. */
}
/* parse albums. */
- SimpleXML albumsXml = soneXml.getNode("albums");
+ SimpleXML albumsXml = soneXml.get().getNode("albums");
Map<String, Album> albums = Maps.newHashMap();
if (albumsXml != null) {
for (SimpleXML albumXml : albumsXml.getNodes("album")) {
String albumImageId = albumXml.getValue("album-image", null);
if ((id == null) || (title == null) || (description == null)) {
logger.log(Level.WARNING, String.format("Downloaded Sone %s contains invalid album!", sone));
- return null;
+ return absent();
}
Album parent = sone.getRootAlbum();
if (parentId != null) {
parent = albums.get(parentId);
if (parent == null) {
logger.log(Level.WARNING, String.format("Downloaded Sone %s has album with invalid parent!", sone));
- return null;
+ return absent();
}
}
Album album = parent.newAlbumBuilder().withId(id).build().modify().setTitle(title).setDescription(description).update();
String imageHeightString = imageXml.getValue("height", null);
if ((imageId == null) || (imageCreationTimeString == null) || (imageKey == null) || (imageTitle == null) || (imageWidthString == null) || (imageHeightString == null)) {
logger.log(Level.WARNING, String.format("Downloaded Sone %s contains invalid images!", sone));
- return null;
+ return absent();
}
long creationTime = Numbers.safeParseLong(imageCreationTimeString, 0L);
int imageWidth = Numbers.safeParseInteger(imageWidthString, 0);
int imageHeight = Numbers.safeParseInteger(imageHeightString, 0);
if ((imageWidth < 1) || (imageHeight < 1)) {
logger.log(Level.WARNING, String.format("Downloaded Sone %s contains image %s with invalid dimensions (%s, %s)!", sone, imageId, imageWidthString, imageHeightString));
- return null;
+ return absent();
}
Image image = album.newImageBuilder().withId(imageId).at(imageKey).created(creationTime).sized(imageWidth, imageHeight).build(Optional.<ImageCreated>absent());
image = image.modify().setTitle(imageTitle).setDescription(imageDescription).update();
}
/* process avatar. */
- if (avatarId != null) {
- profile.setAvatar(core.getImage(avatarId).orNull());
- }
+ profile.setAvatar(fromNullable(avatarId));
/* okay, apparently everything was parsed correctly. Now import. */
sone.setProfile(profile);
sone.setLikePostIds(likedPostIds);
sone.setLikeReplyIds(likedReplyIds);
- return sone;
+ return of(sone);
+ }
+
+ private Optional<Integer> parseProtocolVersion(SimpleXML soneXml) {
+ String soneProtocolVersion = soneXml.getValue("protocol-version", null);
+ if (soneProtocolVersion == null) {
+ logger.log(Level.INFO, "No protocol version found, assuming 0.");
+ return absent();
+ }
+ return fromNullable(Ints.tryParse(soneProtocolVersion));
}
+
+ private Optional<SimpleXML> parseXml(Sone originalSone, Document document) {
+ try {
+ return fromNullable(SimpleXML.fromDocument(document));
+ } catch (NullPointerException npe1) {
+ /* for some reason, invalid XML can cause NPEs. */
+ return absent();
+ }
+ }
+
+ private Optional<Client> parseClient(Sone sone, SimpleXML soneXml) {
+ SimpleXML clientXml = soneXml.getNode("client");
+ if (clientXml == null) {
+ return absent();
+ }
+ String clientName = clientXml.getValue("name", null);
+ String clientVersion = clientXml.getValue("version", null);
+ if ((clientName == null) || (clientVersion == null)) {
+ logger.log(Level.WARNING, String.format("Download Sone %s with client XML but missing name or version!", sone));
+ return null;
+ }
+ return of(new Client(clientName, clientVersion));
+ }
+
}
projects / Sone.git / blobdiff