The Tor Browser: mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/cookie/NetscapeDraftHeaderParser.java@fc2d59ddac77

     1 /*

     2  * ====================================================================

     3  * Licensed to the Apache Software Foundation (ASF) under one

     4  * or more contributor license agreements.  See the NOTICE file

     5  * distributed with this work for additional information

     6  * regarding copyright ownership.  The ASF licenses this file

     7  * to you under the Apache License, Version 2.0 (the

     8  * "License"); you may not use this file except in compliance

     9  * with the License.  You may obtain a copy of the License at

    10  *

    11  *   http://www.apache.org/licenses/LICENSE-2.0

    12  *

    13  * Unless required by applicable law or agreed to in writing,

    14  * software distributed under the License is distributed on an

    15  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

    16  * KIND, either express or implied.  See the License for the

    17  * specific language governing permissions and limitations

    18  * under the License.

    19  * ====================================================================

    20  *

    21  * This software consists of voluntary contributions made by many

    22  * individuals on behalf of the Apache Software Foundation.  For more

    23  * information on the Apache Software Foundation, please see

    24  * <http://www.apache.org/>.

    25  *

    26  */

    28 package ch.boye.httpclientandroidlib.impl.cookie;

    30 import java.util.ArrayList;

    31 import java.util.List;

    33 import ch.boye.httpclientandroidlib.annotation.Immutable;

    35 import ch.boye.httpclientandroidlib.HeaderElement;

    36 import ch.boye.httpclientandroidlib.NameValuePair;

    37 import ch.boye.httpclientandroidlib.ParseException;

    38 import ch.boye.httpclientandroidlib.message.BasicHeaderElement;

    39 import ch.boye.httpclientandroidlib.message.BasicNameValuePair;

    40 import ch.boye.httpclientandroidlib.message.ParserCursor;

    41 import ch.boye.httpclientandroidlib.protocol.HTTP;

    42 import ch.boye.httpclientandroidlib.util.CharArrayBuffer;

    44 /**

    45  *

    46  * @since 4.0

    47  */

    48 @Immutable

    49 public class NetscapeDraftHeaderParser {

    51     public final static NetscapeDraftHeaderParser DEFAULT = new NetscapeDraftHeaderParser();

    53     public NetscapeDraftHeaderParser() {

    54         super();

    55     }

    57     public HeaderElement parseHeader(

    58             final CharArrayBuffer buffer,

    59             final ParserCursor cursor) throws ParseException {

    60         if (buffer == null) {

    61             throw new IllegalArgumentException("Char array buffer may not be null");

    62         }

    63         if (cursor == null) {

    64             throw new IllegalArgumentException("Parser cursor may not be null");

    65         }

    66         NameValuePair nvp = parseNameValuePair(buffer, cursor);

    67         List<NameValuePair> params = new ArrayList<NameValuePair>();

    68         while (!cursor.atEnd()) {

    69             NameValuePair param = parseNameValuePair(buffer, cursor);

    70             params.add(param);

    71         }

    72         return new BasicHeaderElement(

    73                 nvp.getName(),

    74                 nvp.getValue(), params.toArray(new NameValuePair[params.size()]));

    75     }

    77     private NameValuePair parseNameValuePair(

    78             final CharArrayBuffer buffer, final ParserCursor cursor) {

    79         boolean terminated = false;

    81         int pos = cursor.getPos();

    82         int indexFrom = cursor.getPos();

    83         int indexTo = cursor.getUpperBound();

    85         // Find name

    86         String name = null;

    87         while (pos < indexTo) {

    88             char ch = buffer.charAt(pos);

    89             if (ch == '=') {

    90                 break;

    91             }

    92             if (ch == ';') {

    93                 terminated = true;

    94                 break;

    95             }

    96             pos++;

    97         }

    99         if (pos == indexTo) {

   100             terminated = true;

   101             name = buffer.substringTrimmed(indexFrom, indexTo);

   102         } else {

   103             name = buffer.substringTrimmed(indexFrom, pos);

   104             pos++;

   105         }

   107         if (terminated) {

   108             cursor.updatePos(pos);

   109             return new BasicNameValuePair(name, null);

   110         }

   112         // Find value

   113         String value = null;

   114         int i1 = pos;

   116         while (pos < indexTo) {

   117             char ch = buffer.charAt(pos);

   118             if (ch == ';') {

   119                 terminated = true;

   120                 break;

   121             }

   122             pos++;

   123         }

   125         int i2 = pos;

   126         // Trim leading white spaces

   127         while (i1 < i2 && (HTTP.isWhitespace(buffer.charAt(i1)))) {

   128             i1++;

   129         }

   130         // Trim trailing white spaces

   131         while ((i2 > i1) && (HTTP.isWhitespace(buffer.charAt(i2 - 1)))) {

   132             i2--;

   133         }

   134         value = buffer.substring(i1, i2);

   135         if (terminated) {

   136             pos++;

   137         }

   138         cursor.updatePos(pos);

   139         return new BasicNameValuePair(name, value);

   140     }

   142 }

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