commons-net.jar Source Code

commons-net.jar is the bytecode of Apache Commons Net library, which implements the client side of many basic Internet protocols.

Apache Commons Net Source Code files are provided in the binary packge (commons-net-3.8.0-bin.zip). You can download it at Apache Commons Net Website.

The source code of commons-net-3.8.0.jar is provided below:

✍: FYIcenter

org/apache/commons/net/ftp/FTPReply.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.commons.net.ftp;

/**
 * FTPReply stores a set of constants for FTP reply codes.  To interpret
 * the meaning of the codes, familiarity with RFC 959 is assumed.
 * The mnemonic constant names are transcriptions from the code descriptions
 * of RFC 959.
 * <p>
 * TODO replace with an enum
 */

public final class FTPReply
{

    public static final int RESTART_MARKER = 110;
    public static final int SERVICE_NOT_READY = 120;
    public static final int DATA_CONNECTION_ALREADY_OPEN = 125;
    public static final int FILE_STATUS_OK = 150;
    public static final int COMMAND_OK = 200;
    public static final int COMMAND_IS_SUPERFLUOUS = 202;
    public static final int SYSTEM_STATUS = 211;
    public static final int DIRECTORY_STATUS = 212;
    public static final int FILE_STATUS = 213;
    public static final int HELP_MESSAGE = 214;
    public static final int NAME_SYSTEM_TYPE = 215;
    public static final int SERVICE_READY = 220;
    public static final int SERVICE_CLOSING_CONTROL_CONNECTION = 221;
    public static final int DATA_CONNECTION_OPEN = 225;
    public static final int CLOSING_DATA_CONNECTION = 226;
    public static final int ENTERING_PASSIVE_MODE = 227;
    /** @since 2.2 */
    public static final int ENTERING_EPSV_MODE = 229;
    public static final int USER_LOGGED_IN = 230;
    public static final int FILE_ACTION_OK = 250;
    public static final int PATHNAME_CREATED = 257;
    public static final int NEED_PASSWORD = 331;
    public static final int NEED_ACCOUNT = 332;
    public static final int FILE_ACTION_PENDING = 350;
    public static final int SERVICE_NOT_AVAILABLE = 421;
    public static final int CANNOT_OPEN_DATA_CONNECTION = 425;
    public static final int TRANSFER_ABORTED = 426;
    public static final int FILE_ACTION_NOT_TAKEN = 450;
    public static final int ACTION_ABORTED = 451;
    public static final int INSUFFICIENT_STORAGE = 452;
    public static final int UNRECOGNIZED_COMMAND = 500;
    public static final int SYNTAX_ERROR_IN_ARGUMENTS = 501;
    public static final int COMMAND_NOT_IMPLEMENTED = 502;
    public static final int BAD_COMMAND_SEQUENCE = 503;
    public static final int COMMAND_NOT_IMPLEMENTED_FOR_PARAMETER = 504;
    public static final int NOT_LOGGED_IN = 530;
    public static final int NEED_ACCOUNT_FOR_STORING_FILES = 532;
    public static final int FILE_UNAVAILABLE = 550;
    public static final int PAGE_TYPE_UNKNOWN = 551;
    public static final int STORAGE_ALLOCATION_EXCEEDED = 552;
    public static final int FILE_NAME_NOT_ALLOWED = 553;

    // FTPS Reply Codes

    /** @since 2.0 */
    public static final int SECURITY_DATA_EXCHANGE_COMPLETE = 234;
    /** @since 2.0 */
    public static final int SECURITY_DATA_EXCHANGE_SUCCESSFULLY = 235;
    /** @since 2.0 */
    public static final int SECURITY_MECHANISM_IS_OK = 334;
    /** @since 2.0 */
    public static final int SECURITY_DATA_IS_ACCEPTABLE = 335;
    /** @since 2.0 */
    public static final int UNAVAILABLE_RESOURCE = 431;
    /** @since 2.2 */
    public static final int BAD_TLS_NEGOTIATION_OR_DATA_ENCRYPTION_REQUIRED = 522;
    /** @since 2.0 */
    public static final int DENIED_FOR_POLICY_REASONS = 533;
    /** @since 2.0 */
    public static final int REQUEST_DENIED = 534;
    /** @since 2.0 */
    public static final int FAILED_SECURITY_CHECK = 535;
    /** @since 2.0 */
    public static final int REQUESTED_PROT_LEVEL_NOT_SUPPORTED = 536;

    // IPv6 error codes
    // Note this is also used as an FTPS error code reply
    /** @since 2.2 */
    public static final int EXTENDED_PORT_FAILURE = 522;

    // Cannot be instantiated
    private FTPReply()
    {}

    /**
     * Determine if a reply code is a positive preliminary response.  All
     * codes beginning with a 1 are positive preliminary responses.
     * Postitive preliminary responses are used to indicate tentative success.
     * No further commands can be issued to the FTP server after a positive
     * preliminary response until a follow up response is received from the
     * server.
     *
     * @param reply  The reply code to test.
     * @return True if a reply code is a positive preliminary response, false
     *         if not.
     */
    public static boolean isPositivePreliminary(final int reply)
    {
        return reply >= 100 && reply < 200;
    }

    /**
     * Determine if a reply code is a positive completion response.  All
     * codes beginning with a 2 are positive completion responses.
     * The FTP server will send a positive completion response on the final
     * successful completion of a command.
     *
     * @param reply  The reply code to test.
     * @return True if a reply code is a positive completion response, false
     *         if not.
     */
    public static boolean isPositiveCompletion(final int reply)
    {
        return reply >= 200 && reply < 300;
    }

    /**
     * Determine if a reply code is a positive intermediate response.  All
     * codes beginning with a 3 are positive intermediate responses.
     * The FTP server will send a positive intermediate response on the
     * successful completion of one part of a multi-part sequence of
     * commands.  For example, after a successful USER command, a positive
     * intermediate response will be sent to indicate that the server is
     * ready for the PASS command.
     *
     * @param reply  The reply code to test.
     * @return True if a reply code is a positive intermediate response, false
     *         if not.
     */
    public static boolean isPositiveIntermediate(final int reply)
    {
        return reply >= 300 && reply < 400;
    }

    /**
     * Determine if a reply code is a negative transient response.  All
     * codes beginning with a 4 are negative transient responses.
     * The FTP server will send a negative transient response on the
     * failure of a command that can be reattempted with success.
     *
     * @param reply  The reply code to test.
     * @return True if a reply code is a negative transient response, false
     *         if not.
     */
    public static boolean isNegativeTransient(final int reply)
    {
        return reply >= 400 && reply < 500;
    }

    /**
     * Determine if a reply code is a negative permanent response.  All
     * codes beginning with a 5 are negative permanent responses.
     * The FTP server will send a negative permanent response on the
     * failure of a command that cannot be reattempted with success.
     *
     * @param reply  The reply code to test.
     * @return True if a reply code is a negative permanent response, false
     *         if not.
     */
    public static boolean isNegativePermanent(final int reply)
    {
        return reply >= 500 && reply < 600;
    }

    /**
     * Determine if a reply code is a protected response.
     * @param reply  The reply code to test.
     * @return True if a reply code is a protected response, false
     *         if not.
     * @since 3.0
     */
    public static boolean isProtectedReplyCode(final int reply)
    {
        // actually, only 3 protected reply codes are
        // defined in RFC 2228: 631, 632 and 633.
        return reply >= 600 && reply < 700;
    }


}

org/apache/commons/net/ftp/FTPReply.java

 

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