Examples with NoRouteToHostException java.net.NoRouteToHostException used on opensource projects

Example 6 with NoRouteToHostException

use of java.net.NoRouteToHostException in project ExoPlayer by google.

the class DefaultHttpDataSource method makeConnection.

/**
   * Establishes a connection, following redirects to do so where permitted.
   */
private HttpURLConnection makeConnection(DataSpec dataSpec) throws IOException {
    URL url = new URL(dataSpec.uri.toString());
    byte[] postBody = dataSpec.postBody;
    long position = dataSpec.position;
    long length = dataSpec.length;
    boolean allowGzip = dataSpec.isFlagSet(DataSpec.FLAG_ALLOW_GZIP);
    if (!allowCrossProtocolRedirects) {
        // automatically. This is the behavior we want, so use it.
        return makeConnection(url, postBody, position, length, allowGzip, true);
    }
    // We need to handle redirects ourselves to allow cross-protocol redirects.
    int redirectCount = 0;
    while (redirectCount++ <= MAX_REDIRECTS) {
        HttpURLConnection connection = makeConnection(url, postBody, position, length, allowGzip, false);
        int responseCode = connection.getResponseCode();
        if (responseCode == HttpURLConnection.HTTP_MULT_CHOICE || responseCode == HttpURLConnection.HTTP_MOVED_PERM || responseCode == HttpURLConnection.HTTP_MOVED_TEMP || responseCode == HttpURLConnection.HTTP_SEE_OTHER || (postBody == null && (responseCode == 307 || /* HTTP_TEMP_REDIRECT */
        responseCode == 308))) {
            // For 300, 301, 302, and 303 POST requests follow the redirect and are transformed into
            // GET requests. For 307 and 308 POST requests are not redirected.
            postBody = null;
            String location = connection.getHeaderField("Location");
            connection.disconnect();
            url = handleRedirect(url, location);
        } else {
            return connection;
        }
    }
    // If we get here we've been redirected more times than are permitted.
    throw new NoRouteToHostException("Too many redirects: " + redirectCount);
}

Example 7 with NoRouteToHostException

use of java.net.NoRouteToHostException in project android_frameworks_base by AOSPA.

the class MediaHTTPConnection method seekTo.

private void seekTo(long offset) throws IOException {
    teardownConnection();
    try {
        int response;
        int redirectCount = 0;
        URL url = mURL;
        // do not use any proxy for localhost (127.0.0.1)
        boolean noProxy = isLocalHost(url);
        while (true) {
            if (noProxy) {
                mConnection = (HttpURLConnection) url.openConnection(Proxy.NO_PROXY);
            } else {
                mConnection = (HttpURLConnection) url.openConnection();
            }
            mConnection.setConnectTimeout(CONNECT_TIMEOUT_MS);
            // handle redirects ourselves if we do not allow cross-domain redirect
            mConnection.setInstanceFollowRedirects(mAllowCrossDomainRedirect);
            if (mHeaders != null) {
                for (Map.Entry<String, String> entry : mHeaders.entrySet()) {
                    mConnection.setRequestProperty(entry.getKey(), entry.getValue());
                }
            }
            if (offset > 0) {
                mConnection.setRequestProperty("Range", "bytes=" + offset + "-");
            }
            response = mConnection.getResponseCode();
            if (response != HttpURLConnection.HTTP_MULT_CHOICE && response != HttpURLConnection.HTTP_MOVED_PERM && response != HttpURLConnection.HTTP_MOVED_TEMP && response != HttpURLConnection.HTTP_SEE_OTHER && response != HTTP_TEMP_REDIRECT) {
                // not a redirect, or redirect handled by HttpURLConnection
                break;
            }
            if (++redirectCount > MAX_REDIRECTS) {
                throw new NoRouteToHostException("Too many redirects: " + redirectCount);
            }
            String method = mConnection.getRequestMethod();
            if (response == HTTP_TEMP_REDIRECT && !method.equals("GET") && !method.equals("HEAD")) {
                // automatically redirect the request"
                throw new NoRouteToHostException("Invalid redirect");
            }
            String location = mConnection.getHeaderField("Location");
            if (location == null) {
                throw new NoRouteToHostException("Invalid redirect");
            }
            url = new URL(mURL, /* TRICKY: don't use url! */
            location);
            if (!url.getProtocol().equals("https") && !url.getProtocol().equals("http")) {
                throw new NoRouteToHostException("Unsupported protocol redirect");
            }
            boolean sameProtocol = mURL.getProtocol().equals(url.getProtocol());
            if (!mAllowCrossProtocolRedirect && !sameProtocol) {
                throw new NoRouteToHostException("Cross-protocol redirects are disallowed");
            }
            boolean sameHost = mURL.getHost().equals(url.getHost());
            if (!mAllowCrossDomainRedirect && !sameHost) {
                throw new NoRouteToHostException("Cross-domain redirects are disallowed");
            }
            if (response != HTTP_TEMP_REDIRECT) {
                // update effective URL, unless it is a Temporary Redirect
                mURL = url;
            }
        }
        if (mAllowCrossDomainRedirect) {
            // remember the current, potentially redirected URL if redirects
            // were handled by HttpURLConnection
            mURL = mConnection.getURL();
        }
        if (response == HttpURLConnection.HTTP_PARTIAL) {
            // Partial content, we cannot just use getContentLength
            // because what we want is not just the length of the range
            // returned but the size of the full content if available.
            String contentRange = mConnection.getHeaderField("Content-Range");
            mTotalSize = -1;
            if (contentRange != null) {
                // format is "bytes xxx-yyy/zzz
                // where "zzz" is the total number of bytes of the
                // content or '*' if unknown.
                int lastSlashPos = contentRange.lastIndexOf('/');
                if (lastSlashPos >= 0) {
                    String total = contentRange.substring(lastSlashPos + 1);
                    try {
                        mTotalSize = Long.parseLong(total);
                    } catch (NumberFormatException e) {
                    }
                }
            }
        } else if (response != HttpURLConnection.HTTP_OK) {
            throw new IOException();
        } else {
            mTotalSize = mConnection.getContentLength();
        }
        if (offset > 0 && response != HttpURLConnection.HTTP_PARTIAL) {
            // data from the start of the content.
            throw new ProtocolException();
        }
        mInputStream = new BufferedInputStream(mConnection.getInputStream());
        mCurrentOffset = offset;
    } catch (IOException e) {
        mTotalSize = -1;
        mInputStream = null;
        mConnection = null;
        mCurrentOffset = -1;
        throw e;
    }
}

Example 8 with NoRouteToHostException

use of java.net.NoRouteToHostException in project opennms by OpenNMS.

the class NrpeMonitor method poll.

/**
     * {@inheritDoc}
     *
     * Poll the specified address for service availability.
     *
     * During the poll an attempt is made to connect on the specified port. If
     * the connection request is successful, the banner line generated by the
     * interface is parsed and if the banner text indicates that we are talking
     * to Provided that the interface's response is valid we set the service
     * status to SERVICE_AVAILABLE and return.
     */
@Override
public PollStatus poll(MonitoredService svc, Map<String, Object> parameters) {
    String reason = null;
    TimeoutTracker tracker = new TimeoutTracker(parameters, DEFAULT_RETRY, DEFAULT_TIMEOUT);
    String command = ParameterMap.getKeyedString(parameters, "command", NrpePacket.HELLO_COMMAND);
    int port = ParameterMap.getKeyedInteger(parameters, "port", CheckNrpe.DEFAULT_PORT);
    int padding = ParameterMap.getKeyedInteger(parameters, "padding", NrpePacket.DEFAULT_PADDING);
    boolean useSsl = ParameterMap.getKeyedBoolean(parameters, "usessl", DEFAULT_USE_SSL);
    /*
        // Port
        //
        int port = ParameterMap.getKeyedInteger(parameters, "port", DEFAULT_PORT);
        if (port == DEFAULT_PORT) {
            throw new RuntimeException("NrpeMonitor: required parameter 'port' is not present in supplied properties.");
        }
        */
    // BannerMatch
    //
    //Commented out because it is not currently referenced in this monitor
    //String strBannerMatch = (String) parameters.get("banner");
    // Get the address instance.
    //
    InetAddress ipv4Addr = svc.getAddress();
    final String hostAddress = InetAddressUtils.str(ipv4Addr);
    LOG.debug("poll: address = {}, port = {}, {}", hostAddress, port, tracker);
    // Give it a whirl
    //
    int serviceStatus = PollStatus.SERVICE_UNAVAILABLE;
    Double responseTime = null;
    for (tracker.reset(); tracker.shouldRetry() && serviceStatus != PollStatus.SERVICE_AVAILABLE; tracker.nextAttempt()) {
        Socket socket = null;
        try {
            //
            // create a connected socket
            //
            tracker.startAttempt();
            socket = new Socket();
            socket.connect(new InetSocketAddress(ipv4Addr, port), tracker.getConnectionTimeout());
            socket.setSoTimeout(tracker.getSoTimeout());
            LOG.debug("NrpeMonitor: connected to host: {} on port: {}", ipv4Addr, port);
            reason = "Perhaps check the value of 'usessl' for this monitor against the NRPE daemon configuration";
            socket = wrapSocket(socket, useSsl);
            // We're connected, so upgrade status to unresponsive
            serviceStatus = PollStatus.SERVICE_UNRESPONSIVE;
            reason = "Connected successfully, but no response received";
            NrpePacket p = new NrpePacket(NrpePacket.QUERY_PACKET, (short) 0, command);
            byte[] b = p.buildPacket(padding);
            OutputStream o = socket.getOutputStream();
            o.write(b);
            /*
                if (strBannerMatch == null || strBannerMatch.length() == 0 || strBannerMatch.equals("*")) {

				if (true) {
                    serviceStatus = SERVICE_AVAILABLE;
                    // Store response time in RRD
                    if (responseTime >= 0 && rrdPath != null) {
                        try {
                            this.updateRRD(rrdPath, ipv4Addr, dsName, responseTime, pkg);
                        } catch (RuntimeException rex) {
                            LOG.debug("There was a problem writing the RRD: {}", rex);
                        }
                    }
                    break;
                }

                BufferedReader rdr = new BufferedReader(new InputStreamReader(socket.getInputStream()));

                //
                // Tokenize the Banner Line, and check the first
                // line for a valid return.
                //
                String response = rdr.readLine();
                responseTime = System.currentTimeMillis() - sentTime;

                if (response == null)
                    continue;
                LOG.debug("poll: banner = {}", response);
                LOG.debug("poll: responseTime= {}ms", responseTime);

                if (response.indexOf(strBannerMatch) > -1) {
                */
            NrpePacket response = NrpePacket.receivePacket(socket.getInputStream(), padding);
            responseTime = tracker.elapsedTimeInMillis();
            if (response.getResultCode() == 0) {
                serviceStatus = PollStatus.SERVICE_AVAILABLE;
                reason = null;
            } else {
                serviceStatus = PollStatus.SERVICE_UNAVAILABLE;
                reason = "NRPE command returned code " + response.getResultCode() + " and message: " + response.getBuffer();
            }
        } catch (NoRouteToHostException e) {
            reason = "No route to host exception for address " + hostAddress;
            LOG.warn("poll: {}", reason, e);
        } catch (InterruptedIOException e) {
            reason = "did not connect to host within " + tracker;
            LOG.debug("NrpeMonitor: did not connect to host within {}", tracker);
        } catch (ConnectException e) {
            reason = "Connection exception for address: " + ipv4Addr;
            //
            if (LOG.isDebugEnabled()) {
                e.fillInStackTrace();
                LOG.debug("poll: {}", reason, e);
            }
        } catch (NrpeException e) {
            reason = "NrpeException while polling address: " + ipv4Addr;
            if (LOG.isDebugEnabled()) {
                e.fillInStackTrace();
                LOG.debug("poll: {}", reason, e);
            }
        } catch (IOException e) {
            // Ignore
            reason = "IOException while polling address: " + ipv4Addr;
            if (LOG.isDebugEnabled()) {
                e.fillInStackTrace();
                LOG.debug("poll: {}", reason, e);
            }
        } finally {
            try {
                // Close the socket
                if (socket != null) {
                    socket.close();
                }
            } catch (IOException e) {
                if (LOG.isDebugEnabled()) {
                    e.fillInStackTrace();
                    LOG.debug("poll: Error closing socket.", e);
                }
            }
        }
    }
    //
    if (reason == null) {
        return PollStatus.get(serviceStatus, responseTime);
    } else {
        return PollStatus.get(serviceStatus, reason);
    }
}

Example 9 with NoRouteToHostException

use of java.net.NoRouteToHostException in project opennms by OpenNMS.

the class TcpMonitor method poll.

/**
     * {@inheritDoc}
     *
     * Poll the specified address for service availability.
     *
     * During the poll an attempt is made to connect on the specified port. If
     * the connection request is successful, the banner line generated by the
     * interface is parsed and if the banner text indicates that we are talking
     * to Provided that the interface's response is valid we set the service
     * status to SERVICE_AVAILABLE and return.
     */
@Override
public PollStatus poll(MonitoredService svc, Map<String, Object> parameters) {
    //
    // Process parameters
    //
    //
    // Get interface address from NetworkInterface
    //
    TimeoutTracker tracker = new TimeoutTracker(parameters, DEFAULT_RETRY, DEFAULT_TIMEOUT);
    // Port
    //
    int port = ParameterMap.getKeyedInteger(parameters, PARAMETER_PORT, DEFAULT_PORT);
    if (port == DEFAULT_PORT) {
        throw new RuntimeException("TcpMonitor: required parameter 'port' is not present in supplied properties.");
    }
    // BannerMatch
    //
    String strBannerMatch = ParameterMap.getKeyedString(parameters, PARAMETER_BANNER, null);
    // Get the address instance.
    //
    InetAddress ipAddr = svc.getAddress();
    final String hostAddress = InetAddressUtils.str(ipAddr);
    LOG.debug("poll: address = {}, port = {}, {}", hostAddress, port, tracker);
    // Give it a whirl
    //
    PollStatus serviceStatus = PollStatus.unavailable();
    for (tracker.reset(); tracker.shouldRetry() && !serviceStatus.isAvailable(); tracker.nextAttempt()) {
        Socket socket = null;
        try {
            tracker.startAttempt();
            socket = new Socket();
            socket.connect(new InetSocketAddress(ipAddr, port), tracker.getConnectionTimeout());
            socket.setSoTimeout(tracker.getSoTimeout());
            LOG.debug("TcpMonitor: connected to host: {} on port: {}", ipAddr, port);
            // We're connected, so upgrade status to unresponsive
            serviceStatus = PollStatus.unresponsive();
            if (strBannerMatch == null || strBannerMatch.length() == 0 || strBannerMatch.equals("*")) {
                serviceStatus = PollStatus.available(tracker.elapsedTimeInMillis());
                break;
            }
            BufferedReader rdr = new BufferedReader(new InputStreamReader(socket.getInputStream()));
            //
            // Tokenize the Banner Line, and check the first
            // line for a valid return.
            //
            String response = rdr.readLine();
            double responseTime = tracker.elapsedTimeInMillis();
            if (response == null)
                continue;
            LOG.debug("poll: banner = {}", response);
            LOG.debug("poll: responseTime= {}ms", responseTime);
            //Could it be a regex?
            if (strBannerMatch.charAt(0) == '~') {
                if (!response.matches(strBannerMatch.substring(1)))
                    serviceStatus = PollStatus.unavailable("Banner does not match Regex '" + strBannerMatch + "'");
                else
                    serviceStatus = PollStatus.available(responseTime);
            } else {
                if (response.indexOf(strBannerMatch) > -1) {
                    serviceStatus = PollStatus.available(responseTime);
                } else {
                    serviceStatus = PollStatus.unavailable("Banner: '" + response + "' does not contain match string '" + strBannerMatch + "'");
                }
            }
        } catch (NoRouteToHostException e) {
            String reason = "No route to host exception for address " + hostAddress;
            LOG.debug(reason, e);
            serviceStatus = PollStatus.unavailable(reason);
            // Break out of for(;;)
            break;
        } catch (InterruptedIOException e) {
            String reason = "did not connect to host with " + tracker;
            LOG.debug(reason);
            serviceStatus = PollStatus.unavailable(reason);
        } catch (ConnectException e) {
            String reason = "Connection exception for address: " + ipAddr;
            LOG.debug(reason, e);
            serviceStatus = PollStatus.unavailable(reason);
        } catch (IOException e) {
            String reason = "IOException while polling address: " + ipAddr;
            LOG.debug(reason, e);
            serviceStatus = PollStatus.unavailable(reason);
        } finally {
            try {
                // Close the socket
                if (socket != null)
                    socket.close();
            } catch (IOException e) {
                e.fillInStackTrace();
                LOG.debug("poll: Error closing socket.", e);
            }
        }
    }
    //
    return serviceStatus;
}

Example 10 with NoRouteToHostException

use of java.net.NoRouteToHostException in project opennms by OpenNMS.

the class TrivialTimeMonitor method pollTimeTcp.

/**
     * <p>pollTimeTcp</p>
     *
     * @param svc a {@link org.opennms.netmgt.poller.MonitoredService} object.
     * @param parameters a {@link java.util.Map} object.
     * @param serviceStatus a {@link org.opennms.netmgt.poller.PollStatus} object.
     * @param tracker a {@link org.opennms.core.utils.TimeoutTracker} object.
     * @param ipv4Addr a {@link java.net.InetAddress} object.
     * @param port a int.
     * @param allowedSkew a int.
     * @param persistSkew a boolean.
     * @return a {@link org.opennms.netmgt.poller.PollStatus} object.
     */
public PollStatus pollTimeTcp(MonitoredService svc, Map<String, Object> parameters, PollStatus serviceStatus, TimeoutTracker tracker, InetAddress ipv4Addr, int port, int allowedSkew, boolean persistSkew) {
    int localTime = 0;
    int remoteTime = 0;
    boolean gotTime = false;
    for (tracker.reset(); tracker.shouldRetry() && !gotTime; tracker.nextAttempt()) {
        Socket socket = null;
        try {
            tracker.startAttempt();
            socket = new Socket();
            socket.connect(new InetSocketAddress(ipv4Addr, port), tracker.getConnectionTimeout());
            socket.setSoTimeout(tracker.getSoTimeout());
            LOG.debug("Connected to host: {} on TCP port: {}", ipv4Addr, port);
            //
            // Try to read from the socket
            //
            byte[] timeBytes = new byte[4];
            ByteBuffer timeByteBuffer = ByteBuffer.wrap(timeBytes);
            int bytesRead = socket.getInputStream().read(timeBytes);
            if (bytesRead != 4)
                continue;
            LOG.debug("pollTimeTcp: bytes read = {}", bytesRead);
            try {
                remoteTime = timeByteBuffer.getInt();
            } catch (BufferUnderflowException bue) {
                LOG.error("Encountered buffer underflow while reading time from remote socket.");
                remoteTime = 0;
                serviceStatus = PollStatus.unavailable("Failed to read a valid time from remote host.");
                // to next iteration of for() loop
                continue;
            }
            localTime = (int) (System.currentTimeMillis() / 1000) - EPOCH_ADJ_FACTOR;
            gotTime = true;
            serviceStatus = qualifyTime(remoteTime, localTime, allowedSkew, serviceStatus, tracker.elapsedTimeInMillis(), persistSkew);
        } catch (NoRouteToHostException e) {
            String reason = "No route to host exception for address " + InetAddressUtils.str(ipv4Addr);
            LOG.debug(reason, e);
            serviceStatus = PollStatus.unavailable(reason);
        } catch (InterruptedIOException e) {
            String reason = "did not connect to host with " + tracker;
            LOG.debug(reason);
            serviceStatus = PollStatus.unavailable(reason);
        } catch (ConnectException e) {
            String reason = "Connection exception for address: " + ipv4Addr;
            LOG.debug(reason, e);
            serviceStatus = PollStatus.unavailable(reason);
        } catch (IOException e) {
            String reason = "IOException while polling address: " + ipv4Addr;
            LOG.debug(reason, e);
            serviceStatus = PollStatus.unavailable(reason);
        } finally {
            try {
                // Close the socket
                if (socket != null)
                    socket.close();
            } catch (IOException e) {
                e.fillInStackTrace();
                LOG.debug("pollTimeTcp: Error closing socket.", e);
            }
        }
    }
    return serviceStatus;
}