Examples of KeyBlock

freenet.keys.KeyBlock
Interface for fetched blocks. Can be decoded by using a ClientKey to construct a ClientKeyBlock, which can then be decoded to a Bucket.

Examples of freenet.keys.KeyBlock

        try {
          node.storeInsert(block, deep, false, canWriteClientCache, false);
        } catch(KeyCollisionException e) {
          LowLevelPutException failed = new LowLevelPutException(LowLevelPutException.COLLISION);
          NodeSSK key = block.getKey();
          KeyBlock collided = node.fetch(key, true, canWriteClientCache, false, false, null);
          if(collided == null) {
            Logger.error(this, "Collided but no key?!");
            // Could be a race condition.
            try {
              node.store(block, false, canWriteClientCache, false, false);

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Examples of freenet.keys.KeyBlock

    }


    ArrayList<MySendableInsert> myInserters = new ArrayList<MySendableInsert>();
    int x=0;
    for(Key key: blocks.keys()) {
      KeyBlock block = blocks.get(key);
      MySendableInsert inserter =
        new MySendableInsert(x++, block, prioClass, getScheduler(block, context), clientContext);
      myInserters.add(inserter);
    }

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Examples of freenet.keys.KeyBlock

        byte[] pubkeyBytes = new byte[pubkeyLen];
        dis.readFully(keyBytes);
        dis.readFully(headersBytes);
        dis.readFully(dataBytes);
        dis.readFully(pubkeyBytes);
        KeyBlock block;
        try {
          block = Key.createBlock(keyType, keyBytes, headersBytes, dataBytes, pubkeyBytes);
        } catch (KeyVerifyException e) {
          throw new BinaryBlobFormatException("Invalid key: "+e.getMessage(), e);
        }

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Examples of freenet.keys.KeyBlock

        if(random.nextInt(RESET_COUNTER) < KILL_BLOCKS) {
          anyValid = true;
          continue;
        }
      }
      KeyBlock block;
      if(blocks != null)
        block = blocks.get(key);
      else
        block = node.fetch(key, true, true, false, false, null);
      if(block != null) {

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Examples of freenet.keys.KeyBlock

   * @param canWriteDatastore If the request HTL is too high, including if it is local, we
   * cannot write to the datastore.
   * @return A KeyBlock for the key requested or null.
   */
  private KeyBlock makeRequestLocal(Key key, long uid, boolean canReadClientCache, boolean canWriteClientCache, boolean canWriteDatastore, boolean offersOnly) {
    KeyBlock kb = null;


    if (key instanceof NodeCHK) {
      kb = fetch(key, false, canReadClientCache, canWriteClientCache, canWriteDatastore, null);
    } else if (key instanceof NodeSSK) {
      NodeSSK sskKey = (NodeSSK) key;

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Examples of freenet.keys.KeyBlock

  public Object makeRequestSender(Key key, short htl, long uid, RequestTag tag, PeerNode source, boolean localOnly, boolean ignoreStore, boolean offersOnly, boolean canReadClientCache, boolean canWriteClientCache, boolean realTimeFlag) {
    boolean canWriteDatastore = canWriteDatastoreRequest(htl);
    if(logMINOR) Logger.minor(this, "makeRequestSender("+key+ ',' +htl+ ',' +uid+ ',' +source+") on "+getDarknetPortNumber());
    // In store?
    if(!ignoreStore) {
      KeyBlock kb = makeRequestLocal(key, uid, canReadClientCache, canWriteClientCache, canWriteDatastore, offersOnly);
      if (kb != null)
        return kb;
    }
    if(localOnly) return null;
    if(logMINOR) Logger.minor(this, "Not in store locally");

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Examples of freenet.keys.KeyBlock

    // There are at least 2 threads that call this function.
    // DO NOT reuse the meta object, unless on a per-thread basis.
    // Object allocation is pretty cheap in modern Java anyway...
    // If we do reuse it, call reset().
    BlockMetadata meta = new BlockMetadata();
    KeyBlock block = node.fetch(key, false, false, false, false, meta);
    if(block != null)
      tag.setNotRoutedOnwards();
    
    RejectReason rejectReason = nodeStats.shouldRejectRequest(!isSSK, false, isSSK, false, false, source, block != null, false, realTimeFlag, tag);
    if(rejectReason != null) {

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Examples of freenet.keys.KeyBlock

    return blocksByKey.keySet();
  }


  @Override
  public ClientKeyBlock get(ClientKey key) {
    KeyBlock block = get(key.getNodeKey(false));
    if(block == null) return null;
    try {
      return Key.createKeyBlock(key, block);
    } catch (KeyVerifyException e) {
      Logger.error(this, "Caught decoding block with "+key+" : "+e, e);

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Examples of freenet.keys.KeyBlock


    @Override
    public boolean send(NodeClientCore core, RequestScheduler sched, final ClientContext context, final ChosenBlock req) {
      // Ignore keyNum, key, since we're only sending one block.
      ClientKeyBlock encodedBlock;
      KeyBlock b;
      final ClientKey key;
      ClientKey k = null;
      if(SingleBlockInserter.logMINOR) Logger.minor(this, "Starting request");
      BlockItem block = (BlockItem) req.token;
      try {
        try {
          encodedBlock = innerEncode(context.random, block.uri, block.copyBucket, block.isMetadata, block.compressionCodec, block.sourceLength, compressorDescriptor, block.pre1254, block.cryptoAlgorithm, block.cryptoKey);
          b = encodedBlock.getBlock();
        } catch (CHKEncodeException e) {
          throw new LowLevelPutException(LowLevelPutException.INTERNAL_ERROR, e.toString() + ":" + e.getMessage(), e);
        } catch (SSKEncodeException e) {
          throw new LowLevelPutException(LowLevelPutException.INTERNAL_ERROR, e.toString() + ":" + e.getMessage(), e);
        } catch (MalformedURLException e) {
          throw new LowLevelPutException(LowLevelPutException.INTERNAL_ERROR, e.toString() + ":" + e.getMessage(), e);
        } catch (InsertException e) {
          throw new LowLevelPutException(LowLevelPutException.INTERNAL_ERROR, e.toString() + ":" + e.getMessage(), e);
        } catch (IOException e) {
          throw new LowLevelPutException(LowLevelPutException.INTERNAL_ERROR, e.toString() + ":" + e.getMessage(), e);
        } catch (InvalidCompressionCodecException e) {
          throw new LowLevelPutException(LowLevelPutException.INTERNAL_ERROR, e.toString() + ":" + e.getMessage(), e);
        }
        if (b==null) {
          Logger.error(this, "Asked to send empty block", new Exception("error"));
          return false;
        }
        key = encodedBlock.getClientKey();
        k = key;
        context.getJobRunner(block.persistent).queueNormalOrDrop(new PersistentJob() {
            
            @Override
            public boolean run(ClientContext context) {
                orig.onEncode(key, context);
                return true;
            }
            
        });
        if(req.localRequestOnly)
          try {
            core.node.store(b, false, req.canWriteClientCache, true, false);
          } catch (KeyCollisionException e) {
            LowLevelPutException failed = new LowLevelPutException(LowLevelPutException.COLLISION);
            KeyBlock collided = core.node.fetch(k.getNodeKey(), true, req.canWriteClientCache, false, false, null);
            if(collided == null) {
              Logger.error(this, "Collided but no key?!");
              // Could be a race condition.
              try {
                core.node.store(b, false, req.canWriteClientCache, true, false);
              } catch (KeyCollisionException e2) {
                Logger.error(this, "Collided but no key and still collided!");
                throw new LowLevelPutException(LowLevelPutException.INTERNAL_ERROR, "Collided, can't find block, but still collides!", e);
              }
            }
            
            failed.setCollidedBlock(collided);
            throw failed;
          }
        else
          core.realPut(b, req.canWriteClientCache, req.forkOnCacheable, Node.PREFER_INSERT_DEFAULT, Node.IGNORE_LOW_BACKOFF_DEFAULT, req.realTimeFlag);
      } catch (LowLevelPutException e) {
        if(logMINOR) Logger.minor(this, "Caught "+e, e);
        if(e.code == LowLevelPutException.COLLISION) {
          // Collision
          try {
            ClientSSKBlock collided = ClientSSKBlock.construct(((SSKBlock)e.getCollidedBlock()), (ClientSSK)k);
            byte[] data = collided.memoryDecode(true);
            byte[] inserting = BucketTools.toByteArray(block.copyBucket);
            if(collided.isMetadata() == block.isMetadata && collided.getCompressionCodec() == block.compressionCodec && Arrays.equals(data, inserting)) {
              if(SingleBlockInserter.logMINOR) Logger.minor(this, "Collided with identical data");
              req.onInsertSuccess(k, context);
              return true;
            } else {
              if(SingleBlockInserter.logMINOR) Logger.minor(this, "Apparently real collision: collided.isMetadata="+collided.isMetadata()+" block.isMetadata="+block.isMetadata+
                  " collided.codec="+collided.getCompressionCodec()+" block.codec="+block.compressionCodec+
                  " collided.datalength="+data.length+" block.datalength="+inserting.length+" H(collided)="+Fields.hashCode(data)+" H(inserting)="+Fields.hashCode(inserting));
            }
          } catch (KeyVerifyException e1) {
            Logger.error(this, "Caught "+e1+" when checking collision!", e1);
          } catch (KeyDecodeException e1) {

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