X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=src%2Fnet%2Fpterodactylus%2Ffcp%2Fhighlevel%2FHighLevelClient.java;h=089c205899befee64538f670132e3ae56cd5a871;hb=7e564a4ec294adc5d42209834d609556c6011883;hp=4671245507af03ffab8ee4410337e34d55a28639;hpb=9c4446f8be561fac93443cb07b45f756436788ac;p=jFCPlib.git diff --git a/src/net/pterodactylus/fcp/highlevel/HighLevelClient.java b/src/net/pterodactylus/fcp/highlevel/HighLevelClient.java index 4671245..089c205 100644 --- a/src/net/pterodactylus/fcp/highlevel/HighLevelClient.java +++ b/src/net/pterodactylus/fcp/highlevel/HighLevelClient.java @@ -19,6 +19,10 @@ package net.pterodactylus.fcp.highlevel; +import java.io.BufferedReader; +import java.io.File; +import java.io.FileReader; +import java.io.FileWriter; import java.io.IOException; import java.net.InetAddress; import java.net.URL; @@ -27,6 +31,7 @@ import java.util.Collections; import java.util.HashMap; import java.util.Map; import java.util.Map.Entry; +import java.util.logging.Logger; import net.pterodactylus.fcp.AddPeer; import net.pterodactylus.fcp.AllData; @@ -41,6 +46,7 @@ import net.pterodactylus.fcp.FCPPluginReply; import net.pterodactylus.fcp.FcpConnection; import net.pterodactylus.fcp.FcpListener; import net.pterodactylus.fcp.FcpMessage; +import net.pterodactylus.fcp.FcpUtils; import net.pterodactylus.fcp.FinishedCompression; import net.pterodactylus.fcp.GenerateSSK; import net.pterodactylus.fcp.GetFailed; @@ -68,6 +74,8 @@ import net.pterodactylus.fcp.StartedCompression; import net.pterodactylus.fcp.SubscribedUSKUpdate; import net.pterodactylus.fcp.TestDDAComplete; import net.pterodactylus.fcp.TestDDAReply; +import net.pterodactylus.fcp.TestDDARequest; +import net.pterodactylus.fcp.TestDDAResponse; import net.pterodactylus.fcp.URIGenerated; import net.pterodactylus.fcp.UnknownNodeIdentifier; import net.pterodactylus.fcp.UnknownPeerNoteType; @@ -81,6 +89,9 @@ import net.pterodactylus.fcp.UnknownPeerNoteType; */ public class HighLevelClient { + /** Logger. */ + private static final Logger logger = Logger.getLogger(HighLevelClient.class.getName()); + /** Object for internal synchronization. */ private final Object syncObject = new Object(); @@ -111,6 +122,9 @@ public class HighLevelClient { /** Mapping from request identifier to peer callbacks. */ private Map> peerCallbacks = Collections.synchronizedMap(new HashMap>()); + /** Mapping from directories to DDA callbacks. */ + private Map> directDiskAccessCallbacks = Collections.synchronizedMap(new HashMap>()); + /** * Creates a new high-level client that connects to a node on * localhost. @@ -289,6 +303,28 @@ public class HighLevelClient { return peerCallback; } + /** + * Checks whether direct disk access for the given directory is possible. + * You have to perform this check before you can upload or download anything + * from or the disk directly! + * + * @param directory + * The directory to check + * @param wantRead + * Whether you want to read the given directory + * @param wantWrite + * Whether you want to write to the given directory + * @return A direct disk access callback + * @throws IOException + */ + public HighLevelCallback checkDirectDiskAccess(String directory, boolean wantRead, boolean wantWrite) throws IOException { + TestDDARequest testDDARequest = new TestDDARequest(directory, wantRead, wantWrite); + HighLevelCallback directDiskAccessCallback = new HighLevelCallback(new DirectDiskAccessResult()); + directDiskAccessCallbacks.put(directory, directDiskAccessCallback); + fcpConnection.sendMessage(testDDARequest); + return directDiskAccessCallback; + } + // // PRIVATE METHODS // @@ -312,6 +348,9 @@ public class HighLevelClient { */ private class HighLevelClientFcpListener implements FcpListener { + /** Mapping from directory to written file (for cleanup). */ + private final Map writtenFiles = new HashMap(); + /** * Creates a new FCP listener for {@link HighLevelClient}. */ @@ -358,6 +397,12 @@ public class HighLevelClient { peerEntry.getValue().setDone(); } peerCallbacks.clear(); + /* direct disk access callbacks. */ + for (Entry> directDiskAccessEntry: directDiskAccessCallbacks.entrySet()) { + directDiskAccessEntry.getValue().getIntermediaryResult().setFailed(true); + directDiskAccessEntry.getValue().setDone(); + } + directDiskAccessCallbacks.clear(); } else { HighLevelCallback keyGenerationCallback = keyGenerationCallbacks.remove(identifier); if (keyGenerationCallback != null) { @@ -377,6 +422,78 @@ public class HighLevelClient { peerCallback.setDone(); return; } + HighLevelCallback directDiskAccessCallback = directDiskAccessCallbacks.remove(identifier); + if (directDiskAccessCallback != null) { + directDiskAccessCallback.getIntermediaryResult().setFailed(true); + directDiskAccessCallback.setDone(); + return; + } + } + } + + /** + * Reads the given file and returns the first line of the file. + * + * @param readFilename + * The name of the file to read + * @return The content of the file + */ + private String readContent(String readFilename) { + FileReader fileReader = null; + BufferedReader bufferedFileReader = null; + try { + fileReader = new FileReader(readFilename); + bufferedFileReader = new BufferedReader(fileReader); + String content = bufferedFileReader.readLine(); + return content; + } catch (IOException ioe1) { + /* swallow. */ + } finally { + FcpUtils.close(bufferedFileReader); + FcpUtils.close(fileReader); + } + return null; + } + + /** + * Writes the given content to the given file. + * + * @param directDiskAccessResult + * The DDA result + * @param writeFilename + * The name of the file to write to + * @param writeContent + * The content to write to the file + */ + private void writeContent(DirectDiskAccessResult directDiskAccessResult, String writeFilename, String writeContent) { + if ((writeFilename == null) || (writeContent == null)) { + return; + } + writtenFiles.put(directDiskAccessResult, writeFilename); + FileWriter fileWriter = null; + try { + fileWriter = new FileWriter(writeFilename); + fileWriter.write(writeContent); + } catch (IOException ioe1) { + /* swallow. */ + } finally { + FcpUtils.close(fileWriter); + } + } + + /** + * Cleans up any files that written for the given result. + * + * @param directDiskAccessResult + * The direct disk access result + */ + @SuppressWarnings("synthetic-access") + private void cleanFiles(DirectDiskAccessResult directDiskAccessResult) { + String writeFilename = writtenFiles.remove(directDiskAccessResult); + if (writeFilename != null) { + if (!new File(writeFilename).delete()) { + logger.warning("could not delete " + writeFilename); + } } } @@ -667,14 +784,48 @@ public class HighLevelClient { * @see net.pterodactylus.fcp.FcpListener#receivedTestDDAComplete(net.pterodactylus.fcp.FcpConnection, * net.pterodactylus.fcp.TestDDAComplete) */ + @SuppressWarnings("synthetic-access") public void receivedTestDDAComplete(FcpConnection fcpConnection, TestDDAComplete testDDAComplete) { + if (fcpConnection != HighLevelClient.this.fcpConnection) { + return; + } + String directory = testDDAComplete.getDirectory(); + if (directory == null) { + return; + } + HighLevelCallback directDiskAccessCallback = directDiskAccessCallbacks.remove(directory); + DirectDiskAccessResult directDiskAccessResult = directDiskAccessCallback.getIntermediaryResult(); + cleanFiles(directDiskAccessResult); + directDiskAccessResult.setReadAllowed(testDDAComplete.isReadDirectoryAllowed()); + directDiskAccessResult.setWriteAllowed(testDDAComplete.isWriteDirectoryAllowed()); + directDiskAccessCallback.setDone(); } /** * @see net.pterodactylus.fcp.FcpListener#receivedTestDDAReply(net.pterodactylus.fcp.FcpConnection, * net.pterodactylus.fcp.TestDDAReply) */ + @SuppressWarnings("synthetic-access") public void receivedTestDDAReply(FcpConnection fcpConnection, TestDDAReply testDDAReply) { + if (fcpConnection != HighLevelClient.this.fcpConnection) { + return; + } + String directory = testDDAReply.getDirectory(); + if (directory == null) { + return; + } + DirectDiskAccessResult directDiskAccessResult = directDiskAccessCallbacks.get(directory).getIntermediaryResult(); + String readFilename = testDDAReply.getReadFilename(); + String readContent = readContent(readFilename); + String writeFilename = testDDAReply.getWriteFilename(); + String writeContent = testDDAReply.getContentToWrite(); + writeContent(directDiskAccessResult, writeFilename, writeContent); + TestDDAResponse testDDAResponse = new TestDDAResponse(directory, readContent); + try { + fcpConnection.sendMessage(testDDAResponse); + } catch (IOException e) { + /* swallow. I’m verry unhappy about this. */ + } } /**