• Type: Improvement Improvement
    • Status: Closed
    • Priority: Major Major
    • Resolution: Fixed
    • Affects Version/s: 1.3
    • Fix Version/s: 1.4
    • Labels:


      Regular Base64 uses + and / for code point 62 and 63. URL-Safe Base64 uses - and _ instead. Also, URL-Safe base64 omits the == padding to help preserve space.


      decode() should be able to seamlessly handle either situation. This means interpreting +- and /_ as equivalents at any time during the decode. decode() also needs to be more robust against missing padding characters.

      encode() should either emit +/ or -_ depending on a mode set during Base64 construction.

      Since URL-SAFE is all about URL's (e.g. HTTP GET) and most browsers are limited to 1KB of query string, I do not think we need to bother making the URL-MODE available in the stream-oriented classes. (Nonetheless, the streams should be able to decode URL-SAFE, but I don't think they should produce it).

      Some background information: I'm putting together a webapp that integrates with MS Active Directory. Users and Groups are keyed of objectGUID with is a 128 bit int. Would be nice to get some support for this kind of thing:

      "Click to view the profile of <a href='?u=_3-PwBzbRxqMi1qTBhg_6A'>Julius Davies</a>."

      Right now I'm using Hex:

      "Click to view the profile of <a href='?u=ff7f8fc01cdb471a8c8b5a9306183fe8'>Julius Davies</a>."

      Current Base64 class would output this, and I suspect the + would screw things up:

      "Click to view the profile of <a href='?u=/3+PwBzbRxqMi1qTBhg/6A=='>Julius Davies</a>."

      1. codec75.patch
        20 kB
        Julius Davies

        Issue Links


          Julius Davies created issue -
          Julius Davies made changes -
          Field Original Value New Value
          Attachment codec75.patch [ 12408898 ]
 made changes -
          Summary Base64 URL-SAFE Make Base64 URL-safe
 made changes -
          Status Open [ 1 ] Resolved [ 5 ]
          Assignee Gary Gregory [ ]
          Resolution Fixed [ 1 ]
 made changes -
          Affects Version/s 1.3 [ 12311737 ]
          Henri Yandell made changes -
          Status Resolved [ 5 ] Closed [ 6 ]
          Julius Davies made changes -
          Link This issue is duplicated by CODEC-36 [ CODEC-36 ]
          Levon Karayan made changes -
          Link This issue incorporates WICKET-2171 [ WICKET-2171 ]
          Mark Thomas made changes -
          Workflow jira [ 12464194 ] Default workflow, editable Closed status [ 12601649 ]
          Mark Thomas made changes -
          Assignee Gary Gregory [ ] Gary D. Gregory [ garydgregory ]
          Sebb made changes -
          Link This issue relates to CODEC-160 [ CODEC-160 ]


            • Assignee:
              Gary Gregory
              Julius Davies
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