Java WriteRequest类代码示例

import org.apache.ftpserver.usermanager.impl.WriteRequest; //导入依赖的package包/类
/**
 * Check file write permission.
 */
public boolean isWritable() {
    LOG.debug("Checking authorization for " + getAbsolutePath());
    if (user.authorize(new WriteRequest(getAbsolutePath())) == null) {
        LOG.debug("Not authorized");
        return false;
    }

    LOG.debug("Checking if file exists");
    if (file.exists()) {
        LOG.debug("Checking can write: " + file.canWrite());
        return file.canWrite();
    }

    LOG.debug("Authorized");
    return true;
}
 

import org.apache.ftpserver.usermanager.impl.WriteRequest; //导入依赖的package包/类
/**
 * Has delete permission.
 */
public boolean isRemovable() {

    // root cannot be deleted
    if ("/".equals(fileName)) {
        return false;
    }

    /* Added 12/08/2008: in the case that the permission is not explicitly denied for this file
     * we will check if the parent file has write permission as most systems consider that a file can
     * be deleted when their parent directory is writable.
    */
    String fullName = getAbsolutePath();

    // we check FTPServer's write permission for this file.
    if (user.authorize(new WriteRequest(fullName)) == null) {
        return false;
    }
    // In order to maintain consistency, when possible we delete the last '/' character in the String
    int indexOfSlash = fullName.lastIndexOf('/');
    String parentFullName;
    if (indexOfSlash == 0) {
        parentFullName = "/";
    } else {
        parentFullName = fullName.substring(0, indexOfSlash);
    }

    // we check if the parent FileObject is writable.
    NativeFtpFile parentObject = new NativeFtpFile(parentFullName, file
            .getAbsoluteFile().getParentFile(), user);
    return parentObject.isWritable();
}
 

import org.apache.ftpserver.usermanager.impl.WriteRequest; //导入依赖的package包/类
/**
 * Save user data. Store the properties.
 */
public synchronized void save(User usr) throws FtpException {
    // null value check
    if (usr.getName() == null) {
        throw new NullPointerException("User name is null.");
    }
    String thisPrefix = PREFIX + usr.getName() + '.';

    // set other properties
    userDataProp.setProperty(thisPrefix + ATTR_PASSWORD, getPassword(usr));

    String home = usr.getHomeDirectory();
    if (home == null) {
        home = "/";
    }
    userDataProp.setProperty(thisPrefix + ATTR_HOME, home);
    userDataProp.setProperty(thisPrefix + ATTR_ENABLE, usr.getEnabled());
    userDataProp.setProperty(thisPrefix + ATTR_WRITE_PERM, usr
            .authorize(new WriteRequest()) != null);
    userDataProp.setProperty(thisPrefix + ATTR_MAX_IDLE_TIME, usr
            .getMaxIdleTime());

    TransferRateRequest transferRateRequest = new TransferRateRequest();
    transferRateRequest = (TransferRateRequest) usr
            .authorize(transferRateRequest);

    if (transferRateRequest != null) {
        userDataProp.setProperty(thisPrefix + ATTR_MAX_UPLOAD_RATE,
                transferRateRequest.getMaxUploadRate());
        userDataProp.setProperty(thisPrefix + ATTR_MAX_DOWNLOAD_RATE,
                transferRateRequest.getMaxDownloadRate());
    } else {
        userDataProp.remove(thisPrefix + ATTR_MAX_UPLOAD_RATE);
        userDataProp.remove(thisPrefix + ATTR_MAX_DOWNLOAD_RATE);
    }

    // request that always will succeed
    ConcurrentLoginRequest concurrentLoginRequest = new ConcurrentLoginRequest(
            0, 0);
    concurrentLoginRequest = (ConcurrentLoginRequest) usr
            .authorize(concurrentLoginRequest);

    if (concurrentLoginRequest != null) {
        userDataProp.setProperty(thisPrefix + ATTR_MAX_LOGIN_NUMBER,
                concurrentLoginRequest.getMaxConcurrentLogins());
        userDataProp.setProperty(thisPrefix + ATTR_MAX_LOGIN_PER_IP,
                concurrentLoginRequest.getMaxConcurrentLoginsPerIP());
    } else {
        userDataProp.remove(thisPrefix + ATTR_MAX_LOGIN_NUMBER);
        userDataProp.remove(thisPrefix + ATTR_MAX_LOGIN_PER_IP);
    }

    saveUserData();
}
 

import org.apache.ftpserver.usermanager.impl.WriteRequest; //导入依赖的package包/类
@Before
public void startFtpServer() throws Exception {
    recursiveDelete(resolvePath(FTP_ROOT_DIR).toFile());

    File usersFile = USERS_FILE.toFile();
    usersFile.createNewFile();

    NativeFileSystemFactory fsf = new NativeFileSystemFactory();
    fsf.setCreateHome(true);

    PropertiesUserManagerFactory pumf = new PropertiesUserManagerFactory();
    pumf.setAdminName("admin");
    pumf.setPasswordEncryptor(new ClearTextPasswordEncryptor());
    pumf.setFile(usersFile);

    UserManager userMgr = pumf.createUserManager();

    BaseUser user = new BaseUser();
    user.setName("admin");
    user.setPassword("admin");
    user.setHomeDirectory(FTP_ROOT_DIR.toString());

    List<Authority> authorities = new ArrayList<>();
    WritePermission writePermission = new WritePermission();
    writePermission.authorize(new WriteRequest());
    authorities.add(writePermission);
    user.setAuthorities(authorities);
    userMgr.save(user);

    ListenerFactory factory1 = new ListenerFactory();
    factory1.setPort(PORT);

    FtpServerFactory serverFactory = new FtpServerFactory();
    serverFactory.setUserManager(userMgr);
    serverFactory.setFileSystem(fsf);
    serverFactory.setConnectionConfig(new ConnectionConfigFactory().createConnectionConfig());
    serverFactory.addListener("default", factory1.createListener());

    FtpServerFactory factory = serverFactory;
    ftpServer = factory.createServer();
    ftpServer.start();
}
 

import org.apache.ftpserver.usermanager.impl.WriteRequest; //导入依赖的package包/类
/**
 * Execute command.
 */
public void execute(final FtpIoSession session,
        final FtpServerContext context, final FtpRequest request)
        throws IOException, FtpException {

    // reset state variables
    session.resetState();

    // only administrator can execute this
    UserManager userManager = context.getUserManager();
    boolean isAdmin = userManager.isAdmin(session.getUser().getName());
    if (!isAdmin) {
        session.write(LocalizedFtpReply.translate(session, request, context,
                FtpReply.REPLY_530_NOT_LOGGED_IN, "SITE", null));
        return;
    }

    // get the user name
    String argument = request.getArgument();
    int spIndex = argument.indexOf(' ');
    if (spIndex == -1) {
        session.write(LocalizedFtpReply.translate(session, request, context,
                FtpReply.REPLY_503_BAD_SEQUENCE_OF_COMMANDS,
                "SITE.DESCUSER", null));
        return;
    }
    String userName = argument.substring(spIndex + 1);

    // check the user existance
    UserManager usrManager = context.getUserManager();
    User user = null;
    try {
        if (usrManager.doesExist(userName)) {
            user = usrManager.getUserByName(userName);
        }
    } catch (FtpException ex) {
        LOG.debug("Exception trying to get user from user manager", ex);
    }
    if (user == null) {
        session.write(LocalizedFtpReply.translate(session, request, context,
                FtpReply.REPLY_501_SYNTAX_ERROR_IN_PARAMETERS_OR_ARGUMENTS,
                "SITE.DESCUSER", userName));
        return;
    }

    // send the user information
    StringBuilder sb = new StringBuilder(128);
    sb.append("\n");
    sb.append("userid          : ").append(user.getName()).append("\n");
    sb.append("userpassword    : ********\n");
    sb.append("homedirectory   : ").append(user.getHomeDirectory()).append(
            "\n");
    sb.append("writepermission : ").append(
            user.authorize(new WriteRequest()) != null).append("\n");
    sb.append("enableflag      : ").append(user.getEnabled()).append("\n");
    sb.append("idletime        : ").append(user.getMaxIdleTime()).append(
            "\n");

    TransferRateRequest transferRateRequest = new TransferRateRequest();
    transferRateRequest = (TransferRateRequest) session.getUser()
            .authorize(transferRateRequest);

    if (transferRateRequest != null) {
        sb.append("uploadrate      : ").append(
                transferRateRequest.getMaxUploadRate()).append("\n");
        sb.append("downloadrate    : ").append(
                transferRateRequest.getMaxDownloadRate()).append("\n");
    } else {
        sb.append("uploadrate      : 0\n");
        sb.append("downloadrate    : 0\n");
    }
    sb.append('\n');
    session.write(new DefaultFtpReply(FtpReply.REPLY_200_COMMAND_OKAY, sb
            .toString()));
}