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From billbar...@apache.org
Subject cvs commit: jakarta-tomcat-connectors/util/java/org/apache/tomcat/util/http/mapper Mapper.java
Date Sat, 19 Jun 2004 04:25:14 GMT
billbarker    2004/06/18 21:25:14

  Modified:    util/java/org/apache/tomcat/util/http/mapper Mapper.java
  Log:
  Change to do case-insensitive mapping of the Host.
  
  Host names (like all DNS names) are not case-sensitive, so ignore case when mapping.
  
  Fix for Bug #29661
  Reported By: François Jeanmougin  francois.jeanmougin@123multimedia.com
  
  Revision  Changes    Path
  1.39      +88 -2     jakarta-tomcat-connectors/util/java/org/apache/tomcat/util/http/mapper/Mapper.java
  
  Index: Mapper.java
  ===================================================================
  RCS file: /home/cvs/jakarta-tomcat-connectors/util/java/org/apache/tomcat/util/http/mapper/Mapper.java,v
  retrieving revision 1.38
  retrieving revision 1.39
  diff -u -r1.38 -r1.39
  --- Mapper.java	28 May 2004 05:02:08 -0000	1.38
  +++ Mapper.java	19 Jun 2004 04:25:14 -0000	1.39
  @@ -21,6 +21,7 @@
   
   import org.apache.tomcat.util.buf.CharChunk;
   import org.apache.tomcat.util.buf.MessageBytes;
  +import org.apache.tomcat.util.buf.Ascii;
   import java.util.List;
   import java.util.ArrayList;
   
  @@ -551,8 +552,8 @@
           // Virtual host mapping
           if (mappingData.host == null) {
               Host[] hosts = this.hosts;
  -            int pos = find(hosts, host);
  -            if ((pos != -1) && (host.equals(hosts[pos].name))) {
  +            int pos = findIgnoreCase(hosts, host);
  +            if ((pos != -1) && (host.equalsIgnoreCase(hosts[pos].name))) {
                   mappingData.host = hosts[pos].object;
                   contexts = hosts[pos].contextList.contexts;
                   nesting = hosts[pos].contextList.nesting;
  @@ -961,6 +962,61 @@
   
       }
   
  +    /**
  +     * Find a map elemnt given its name in a sorted array of map elements.
  +     * This will return the index for the closest inferior or equal item in the
  +     * given array.
  +     */
  +    private static final int findIgnoreCase(MapElement[] map, CharChunk name) {
  +        return findIgnoreCase(map, name, name.getStart(), name.getEnd());
  +    }
  +
  +
  +    /**
  +     * Find a map elemnt given its name in a sorted array of map elements.
  +     * This will return the index for the closest inferior or equal item in the
  +     * given array.
  +     */
  +    private static final int findIgnoreCase(MapElement[] map, CharChunk name,
  +                                  int start, int end) {
  +
  +        int a = 0;
  +        int b = map.length - 1;
  +
  +        // Special cases: -1 and 0
  +        if (b == -1) {
  +            return -1;
  +        }
  +        if (compareIgnoreCase(name, start, end, map[0].name) < 0 ) {
  +            return -1;
  +        }         
  +        if (b == 0) {
  +            return 0;
  +        }
  +
  +        int i = 0;
  +        while (true) {
  +            i = (b + a) / 2;
  +            int result = compareIgnoreCase(name, start, end, map[i].name);
  +            if (result == 1) {
  +                a = i;
  +            } else if (result == 0) {
  +                return i;
  +            } else {
  +                b = i;
  +            }
  +            if ((b - a) == 1) {
  +                int result2 = compareIgnoreCase(name, start, end, map[b].name);
  +                if (result2 < 0) {
  +                    return a;
  +                } else {
  +                    return b;
  +                }
  +            }
  +        }
  +
  +    }
  +
   
       /**
        * Find a map elemnt given its name in a sorted array of map elements.
  @@ -1024,6 +1080,36 @@
               if (c[i + start] > compareTo.charAt(i)) {
                   result = 1;
               } else if (c[i + start] < compareTo.charAt(i)) {
  +                result = -1;
  +            }
  +        }
  +        if (result == 0) {
  +            if (compareTo.length() > (end - start)) {
  +                result = -1;
  +            } else if (compareTo.length() < (end - start)) {
  +                result = 1;
  +            }
  +        }
  +        return result;
  +    }
  +
  +
  +    /**
  +     * Compare given char chunk with String ignoring case.
  +     * Return -1, 0 or +1 if inferior, equal, or superior to the String.
  +     */
  +    private static final int compareIgnoreCase(CharChunk name, int start, int end,
  +                                     String compareTo) {
  +        int result = 0;
  +        char[] c = name.getBuffer();
  +        int len = compareTo.length();
  +        if ((end - start) < len) {
  +            len = end - start;
  +        }
  +        for (int i = 0; (i < len) && (result == 0); i++) {
  +            if (Ascii.toLower(c[i + start]) > Ascii.toLower(compareTo.charAt(i))) {
  +                result = 1;
  +            } else if (Ascii.toLower(c[i + start]) < Ascii.toLower(compareTo.charAt(i)))
{
                   result = -1;
               }
           }
  
  
  

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