201502.mbox/raw/%3c20150205141943.1BEA1AC006E@hades.apache.org%3e

+
+    /*
+     * ====================================================================
+     * 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
+     * <http://www.apache.org/>.
+     *
+     */
+    package org.apache.http.impl.cookie;
+
+    import java.util.BitSet;
+    import java.util.Calendar;
+    import java.util.Locale;
+    import java.util.Map;
+    import java.util.TimeZone;
+    import java.util.concurrent.ConcurrentHashMap;
+    import java.util.regex.Matcher;
+    import java.util.regex.Pattern;
+
+    import org.apache.http.annotation.Immutable;
+    import org.apache.http.cookie.ClientCookie;
+    import org.apache.http.cookie.CommonCookieAttributeHandler;
+    import org.apache.http.cookie.MalformedCookieException;
+    import org.apache.http.cookie.SetCookie;
+    import org.apache.http.message.ParserCursor;
+    import org.apache.http.util.Args;
+
+    /**
+     *
+     * @since 4.4
+     */
+    @Immutable
+    public class LaxExpiresHandler extends AbstractCookieAttributeHandler implements CommonCookieAttributeHandler {
+
+        static final TimeZone UTC = TimeZone.getTimeZone("UTC");
+
+        private static final BitSet DELIMS;
+        static {
+            final BitSet bitSet = new BitSet();
+            bitSet.set(0x9);
+            for (int b = 0x20; b <= 0x2f; b++) {
+                bitSet.set(b);
+            }
+            for (int b = 0x3b; b <= 0x40; b++) {
+                bitSet.set(b);
+            }
+            for (int b = 0x5b; b <= 0x60; b++) {
+                bitSet.set(b);
+            }
+            for (int b = 0x7b; b <= 0x7e; b++) {
+                bitSet.set(b);
+            }
+            DELIMS = bitSet;
+        }
+        private static final Map<String, Integer> MONTHS;
+        static {
+            final ConcurrentHashMap<String, Integer> map = new ConcurrentHashMap<String, Integer>(12);
+            map.put("jan", Calendar.JANUARY);
+            map.put("feb", Calendar.FEBRUARY);
+            map.put("mar", Calendar.MARCH);
+            map.put("apr", Calendar.APRIL);
+            map.put("may", Calendar.MAY);
+            map.put("jun", Calendar.JUNE);
+            map.put("jul", Calendar.JULY);
+            map.put("aug", Calendar.AUGUST);
+            map.put("sep", Calendar.SEPTEMBER);
+            map.put("oct", Calendar.OCTOBER);
+            map.put("nov", Calendar.NOVEMBER);
+            map.put("dec", Calendar.DECEMBER);
+            MONTHS = map;
+        }
+
+        private final static Pattern TIME_PATTERN = Pattern.compile(
+                "^([0-9]{1,2}):([0-9]{1,2}):([0-9]{1,2})([^0-9].*)?$");
+        private final static Pattern DAY_OF_MONTH_PATTERN = Pattern.compile(
+                "^([0-9]{1,2})([^0-9].*)?$");
+        private final static Pattern MONTH_PATTERN = Pattern.compile(
+                "^(jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec)(.*)?$", Pattern.CASE_INSENSITIVE);
+        private final static Pattern YEAR_PATTERN = Pattern.compile(
+                "^([0-9]{2,4})([^0-9].*)?$");
+
+        public LaxExpiresHandler() {
+            super();
+        }
+
+        @Override
+        public void parse(final SetCookie cookie, final String value) throws MalformedCookieException {
+            Args.notNull(cookie, "Cookie");
+            final ParserCursor cursor = new ParserCursor(0, value.length());
+            final StringBuilder content = new StringBuilder();
+
+            int second = 0, minute = 0, hour = 0, day = 0, month = 0, year = 0;
+            boolean foundTime = false, foundDayOfMonth = false, foundMonth = false, foundYear = false;
+            try {
+                while (!cursor.atEnd()) {
+                    skipDelims(value, cursor);
+                    content.setLength(0);
+                    copyContent(value, cursor, content);
+
+                    if (content.length() == 0) {
+                        break;
+                    }
+                    if (!foundTime) {
+                        final Matcher matcher = TIME_PATTERN.matcher(content);
+                        if (matcher.matches()) {
+                            foundTime = true;
+                            hour = Integer.parseInt(matcher.group(1));
+                            minute = Integer.parseInt(matcher.group(2));
+                            second =Integer.parseInt(matcher.group(3));
+                            continue;
+                        }
+                    }
+                    if (!foundDayOfMonth) {
+                        final Matcher matcher = DAY_OF_MONTH_PATTERN.matcher(content);
+                        if (matcher.matches()) {
+                            foundDayOfMonth = true;
+                            day = Integer.parseInt(matcher.group(1));
+                            continue;
+                        }
+                    }
+                    if (!foundMonth) {
+                        final Matcher matcher = MONTH_PATTERN.matcher(content);
+                        if (matcher.matches()) {
+                            foundMonth = true;
+                            month = MONTHS.get(matcher.group(1).toLowerCase(Locale.ROOT));
+                            continue;
+                        }
+                    }
+                    if (!foundYear) {
+                        final Matcher matcher = YEAR_PATTERN.matcher(content);
+                        if (matcher.matches()) {
+                            foundYear = true;
+                            year = Integer.parseInt(matcher.group(1));
+                            continue;
+                        }
+                    }
+                }
+            } catch (NumberFormatException ignore) {
+                throw new MalformedCookieException("Invalid 'expires' attribute: " + value);
+            }
+            if (!foundTime || !foundDayOfMonth || !foundMonth || !foundYear) {
+                throw new MalformedCookieException("Invalid 'expires' attribute: " + value);
+            }
+            if (year >= 70 && year <= 99) {
+                year = 1900 + year;
+            }
+            if (year >= 0 && year <= 69) {
+                year = 2000 + year;
+            }
+            if (day < 1 || day > 31 || year < 1601 || hour > 23 || minute > 59 || second > 59) {
+                throw new MalformedCookieException("Invalid 'expires' attribute: " + value);
+            }
+
+            final Calendar c = Calendar.getInstance();
+            c.setTimeZone(UTC);
+            c.setTimeInMillis(0L);
+            c.set(Calendar.SECOND, second);
+            c.set(Calendar.MINUTE, minute);
+            c.set(Calendar.HOUR_OF_DAY, hour);
+            c.set(Calendar.DAY_OF_MONTH, day);
+            c.set(Calendar.MONTH, month);
+            c.set(Calendar.YEAR, year);
+            cookie.setExpiryDate(c.getTime());
+        }
+
+        private void skipDelims(final CharSequence buf, final ParserCursor cursor) {
+            int pos = cursor.getPos();
+            final int indexFrom = cursor.getPos();
+            final int indexTo = cursor.getUpperBound();
+            for (int i = indexFrom; i < indexTo; i++) {
+                final char current = buf.charAt(i);
+                if (DELIMS.get(current)) {
+                    pos++;
+                } else {
+                    break;
+                }
+            }
+            cursor.updatePos(pos);
+        }
+
+        private void copyContent(final CharSequence buf, final ParserCursor cursor, final StringBuilder dst) {
+            int pos = cursor.getPos();
+            final int indexFrom = cursor.getPos();
+            final int indexTo = cursor.getUpperBound();
+            for (int i = indexFrom; i < indexTo; i++) {
+                final char current = buf.charAt(i);
+                if (DELIMS.get(current)) {
+                    break;
+                } else {
+                    pos++;
+                    dst.append(current);
+                }
+            }
+            cursor.updatePos(pos);
+        }
+
+        @Override
+        public String getAttributeName() {
+            return ClientCookie.MAX_AGE_ATTR;
+        }
+
+    }
+