All Downloads are FREE. Search and download functionalities are using the official Maven repository.

org.apache.http.conn.util.PublicSuffixListParser Maven / Gradle / Ivy

There is a newer version: 3.0.0-alpha-3
Show newest version
/*
 * ====================================================================
 * 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.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * .
 *
 */
package org.apache.http.conn.util;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.Reader;
import java.util.ArrayList;
import java.util.List;

import org.apache.http.annotation.Contract;
import org.apache.http.annotation.ThreadingBehavior;

/**
 * Parses the list from publicsuffix.org
 * and configures a PublicSuffixFilter.
 *
 * @since 4.4
 */
@Contract(threading = ThreadingBehavior.IMMUTABLE)
public final class PublicSuffixListParser {

    public PublicSuffixListParser() {
    }

    /**
     * Parses the public suffix list format.
     * 

* When creating the reader from the file, make sure to use the correct encoding * (the original list is in UTF-8). * * @param reader the data reader. The caller is responsible for closing the reader. * @throws java.io.IOException on error while reading from list */ public PublicSuffixList parse(final Reader reader) throws IOException { final List rules = new ArrayList(); final List exceptions = new ArrayList(); final BufferedReader r = new BufferedReader(reader); String line; while ((line = r.readLine()) != null) { if (line.isEmpty()) { continue; } if (line.startsWith("//")) { continue; //entire lines can also be commented using // } if (line.startsWith(".")) { line = line.substring(1); // A leading dot is optional } // An exclamation mark (!) at the start of a rule marks an exception to a previous wildcard rule final boolean isException = line.startsWith("!"); if (isException) { line = line.substring(1); } if (isException) { exceptions.add(line); } else { rules.add(line); } } return new PublicSuffixList(DomainType.UNKNOWN, rules, exceptions); } /** * Parses the public suffix list format by domain type (currently supported ICANN and PRIVATE). *

* When creating the reader from the file, make sure to use the correct encoding * (the original list is in UTF-8). * * @param reader the data reader. The caller is responsible for closing the reader. * @throws java.io.IOException on error while reading from list * * @since 4.5 */ public List parseByType(final Reader reader) throws IOException { final List result = new ArrayList(2); final BufferedReader r = new BufferedReader(reader); DomainType domainType = null; List rules = null; List exceptions = null; String line; while ((line = r.readLine()) != null) { if (line.isEmpty()) { continue; } if (line.startsWith("//")) { if (domainType == null) { if (line.contains("===BEGIN ICANN DOMAINS===")) { domainType = DomainType.ICANN; } else if (line.contains("===BEGIN PRIVATE DOMAINS===")) { domainType = DomainType.PRIVATE; } } else { if (line.contains("===END ICANN DOMAINS===") || line.contains("===END PRIVATE DOMAINS===")) { if (rules != null) { result.add(new PublicSuffixList(domainType, rules, exceptions)); } domainType = null; rules = null; exceptions = null; } } continue; //entire lines can also be commented using // } if (domainType == null) { continue; } if (line.startsWith(".")) { line = line.substring(1); // A leading dot is optional } // An exclamation mark (!) at the start of a rule marks an exception to a previous wildcard rule final boolean isException = line.startsWith("!"); if (isException) { line = line.substring(1); } if (isException) { if (exceptions == null) { exceptions = new ArrayList(); } exceptions.add(line); } else { if (rules == null) { rules = new ArrayList(); } rules.add(line); } } return result; } }





© 2015 - 2024 Weber Informatics LLC | Privacy Policy