[CODEC-89] new Base64().encode() appends a CRLF, and chunks results into 76 character lines

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.4
• Fix Version/s: 1.5
• Assignee: Unassigned
• Reporter: Julius Davies
• Created: 28/Oct/09 06:15
• Updated: 23/Jan/11 21:28
• Resolved: 27/Mar/10 00:05

Description

The instance encode() method (e.g. new Base64().encode()) appends a CRLF. Actually it's fully chunking the output into 76 character lines. Commons-Codec-1.3 did not do this. The static Base64.encodeBase64() method behaves the same in both 1.3 and 1.4, so this problem only affects the instance encode() method.

import org.apache.commons.codec.binary.*;

public class B64 {

  public static void main(String[] args) throws Exception {
    Base64 b64 = new Base64();

    String s1 = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
    String s2 = "aaaaaaaaaa";
    String s3 = "a";
    
    byte[] b1 = s1.getBytes("UTF-8");
    byte[] b2 = s2.getBytes("UTF-8");
    byte[] b3 = s3.getBytes("UTF-8");

    byte[] result;
    result = Base64.encodeBase64(b1);
    System.out.println("[" + new String(result, "UTF-8") + "]");
    result = b64.encode(b1);
    System.out.println("[" + new String(result, "UTF-8") + "]");

    result = Base64.encodeBase64(b2);
    System.out.println("[" + new String(result, "UTF-8") + "]");
    result = b64.encode(b2);
    System.out.println("[" + new String(result, "UTF-8") + "]");

    result = Base64.encodeBase64(b3);
    System.out.println("[" + new String(result, "UTF-8") + "]");
    result = b64.encode(b3);
    System.out.println("[" + new String(result, "UTF-8") + "]");

  }
}

Here's my output:

$ java -cp commons-codec-1.3.jar:. B64
[YWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYQ==]
[YWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYQ==]
[YWFhYWFhYWFhYQ==]
[YWFhYWFhYWFhYQ==]
[YQ==]
[YQ==]


$ java -cp commons-codec-1.4.jar:. B64
[YWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYQ==]
[YWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFh
YWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYQ==
]
[YWFhYWFhYWFhYQ==]
[YWFhYWFhYWFhYQ==
]
[YQ==]
[YQ==
]

Issue Links

• is duplicated by: CODEC-97 Base64 default constructor behaviour changed to enable chunking in 1.4