org.exoplatform.utils.ExoWebAddress.java Source code

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Here is the source code for org.exoplatform.utils.ExoWebAddress.java

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/*
 * Copyright (C) 2006 The Android Open Source Project
 *
 * Licensed 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.exoplatform.utils;

import static android.util.Patterns.GOOD_IRI_CHAR;

import java.util.Locale;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.apache.http.ParseException;

/**
 *
 * Web Address Parser
 *
 * This is called WebAddress, rather than URL or URI, because it
 * attempts to parse the stuff that a user will actually type into a
 * browser address widget.
 *
 * Unlike java.net.uri, this parser will not choke on URIs missing
 * schemes.  It will only throw a ParseException if the input is
 * really hosed.
 *
 * If given an https scheme but no port, fills in port
 * 
 * cf https://github.com/android/platform_frameworks_base/blob/master/core/java/android/net/WebAddress.java
 *
 */
public class ExoWebAddress {

    private String mScheme;
    private String mHost;
    private int mPort;
    private String mPath;
    private String mAuthInfo;

    static final int MATCH_GROUP_SCHEME = 1;
    static final int MATCH_GROUP_AUTHORITY = 2;
    static final int MATCH_GROUP_HOST = 3;
    static final int MATCH_GROUP_PORT = 4;
    static final int MATCH_GROUP_PATH = 5;

    static Pattern sAddressPattern = Pattern.compile(/* scheme    */ "(?:(" + ExoConstants.HTTP_PROTOCOL + "|"
            + ExoConstants.HTTPS_PROTOCOL + ")\\:\\/\\/)?" +
            /* authority */ "(?:([-A-Za-z0-9$_.+!*'(),;?&=]+(?:\\:[-A-Za-z0-9$_.+!*'(),;?&=]+)?)@)?" +
            /* host      */ "([" + GOOD_IRI_CHAR + "%_-][" + GOOD_IRI_CHAR + "%_\\.-]*|\\[[0-9a-fA-F:\\.]+\\])?" +
            /* port      */ "(?:\\:([0-9]*))?" +
            /* path      */ "(\\/?[^#]*)?" +
            /* anchor    */ ".*", Pattern.CASE_INSENSITIVE);

    /** parses given uriString. */
    public ExoWebAddress(String address) {
        if (address == null) {
            throw new NullPointerException();
        }

        mScheme = "";
        mHost = "";
        mPort = -1;
        mPath = "/";
        mAuthInfo = "";

        Matcher m = sAddressPattern.matcher(address);
        String t;
        if (m.matches()) {
            t = m.group(MATCH_GROUP_SCHEME);
            if (t != null)
                mScheme = t.toLowerCase(Locale.ROOT);
            t = m.group(MATCH_GROUP_AUTHORITY);
            if (t != null)
                mAuthInfo = t;
            t = m.group(MATCH_GROUP_HOST);
            if (t != null)
                mHost = t;
            t = m.group(MATCH_GROUP_PORT);
            if (t != null && t.length() > 0) {
                // The ':' character is not returned by the regex.
                try {
                    mPort = Integer.parseInt(t);
                } catch (NumberFormatException ex) {
                    throw new ParseException("Incorrect port number");
                }
            }
            t = m.group(MATCH_GROUP_PATH);
            if (t != null && t.length() > 0) {
                /* handle busted myspace frontpage redirect with
                   missing initial "/" */
                if (t.charAt(0) == '/') {
                    mPath = t;
                } else {
                    mPath = "/" + t;
                }
            }

        } else {
            // nothing found... outa here
            throw new ParseException("Incorrect address");
        }

        if ("".equals(mScheme))
            mScheme = ExoConstants.HTTP_PROTOCOL;
    }

    @Override
    public String toString() {
        String port = "";
        if ((mPort != 443 && mScheme.equals(ExoConstants.HTTPS_PROTOCOL))
                || (mPort != 80 && mScheme.equals(ExoConstants.HTTP_PROTOCOL))) {
            port = ":" + Integer.toString(mPort);
        }
        String authInfo = "";
        if (mAuthInfo.length() > 0) {
            authInfo = mAuthInfo + "@";
        }

        return mScheme + "://" + authInfo + mHost + port + mPath;
    }

    public void setScheme(String scheme) {
        mScheme = scheme;
    }

    public String getScheme() {
        return mScheme;
    }

    public void setHost(String host) {
        mHost = host;
    }

    public String getHost() {
        return mHost;
    }

    public void setPort(int port) {
        mPort = port;
    }

    public int getPort() {
        return mPort;
    }

    public void setPath(String path) {
        mPath = path;
    }

    public String getPath() {
        return mPath;
    }

    public void setAuthInfo(String authInfo) {
        mAuthInfo = authInfo;
    }

    public String getAuthInfo() {
        return mAuthInfo;
    }
}