openldap/contrib/tweb/CHANGES

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*                                                                          *
* CHANGES                                                                  *
*                                                                          *
* Function:..A short description of the last modifications of TWEB         *
*                                                                          *
*                                                                          *
*                                                                          *
* Authors:...Dr. Kurt Spanier & Bernhard Winkler,                          *
*            Zentrum fuer Datenverarbeitung, Bereich Entwicklung           *
*            neuer Dienste, Universitaet Tuebingen, GERMANY                *
*                                                                          *
*                                       ZZZZZ  DDD    V   V                *
*            Creation date:                Z   D  D   V   V                *
*            September 14 1995            Z    D   D   V V                 *
*            Last modification:          Z     D  D    V V                 *
*            January 15 1999            ZZZZ   DDD      V                  *
*                                                                          *
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               Changes of the web-x.500-gateway TWEB
               =====================================

Version: tweb-2.3 1998/10/05

Changes to code

    - dynamic re-sort and re-display based on entries found in the DIT:
        SORT definitions given by config files can be changed due to
        local information within a DIT area; that provides for dynamic
        definitions of sorting groups and/or display of groups with new
        labels and/or other sorting order;
        DISPLAY definitions can be replaced or added dynamically, in order
        to display contents of entries in other than the statically
        configured way


Version: tweb-2.2 1998/3/20

Changes in configuration files (please check!)

    - INDEX-URL (new): display hrefs below a certain dit showing special parts
              of the entry-dn in any sequence

    - DIT-CONFIG (new): get from a specified location the information how to
              switch to other gateways depending on the given dn.
              With NOT-BROWSE you can turn of this functionality for browsing.

    - DISP-SEA-RDN (new): with this option you can make search-results to be
              displayed only by rdn and not by relative dn to the search-base

    - TON-URLS (new): hereby you can reference a given organization/alunit
              by TONS (special numbers for organizational hirarchies)
              example: T013307 can mean:
                     computing centre, dept. development of new services

    - INDIRECT-ATTRS (new): attribute-value can be fetched by special keys from
              other locations and additional be transformed by according
              functions

    - ALLOW-STRING DENY-STRING GRANT REFUSE : CHANGE IN BEHAVIOUR!!
              now regular expressions are used. That means you have shorter
              config strings.

    - ALLOW-MSG (new): by this option you can specify a special file located
              in the ETCDIRectorie containing a message to be displayed
              in case of an allowed access to TWEB

    - TABLES (new): triggered by the presence of a special objectclass
               will be displayed a button in the header of the TWEB-page
               allowing an eXtended data access such as:
                      a table with names, telephonenumbers and e-mail addresses
                      of the current organization

               or     the access to the electronic telephonebook-data
                      of the university of tuebingen generated by TWEB
                      dynamically


Version: tweb-2.0a 1997/1/7

Changes in configuration files (please check!)

    - PULL-DOWN-MENUS (new): use BUTTONS and PULL-DOWN-MENUS instead of links
              in order to support: help, language-switch, move-upwards
              and read-entry functionalities

    - GRANT (new): allow general access to TWEB for specified locations
              ( same syntax as ALLOW-STRING )

    - REFUSE (new): refuse general access to TWEB for specified locations
              ( same syntax as DENY-STRING )

    - INDIRECT-ATTRS (new): Get specified attribute-values from another
              location

    - CACHING-TERMS (new): specify caching-behaviour for browsers and www-caches

    - CACHE-EXPIRE-DEFAULT (new): set a default caching-time for browsers
              and www-caches

    - SHOW-DEFOC (new): Show Default Objectclass

    - COMREFUSE (new): prevent engine-access

    - robots.txt (new): supply robots.txt-file functionality with the same
              behaviour as in www-servers


Version: tweb-1.1b 1996/5/7

Changes in configuration files (please check!)

    - STRICT-BASEDN (new): Access not below basedn is switched to responsible
                       gateway ( ->  gw-switch)

    - ALLOW-PROXY (new): if NO-PROXY is configured access from 
                       given domain is allowed


Version: tweb-1.1a, 1996/4/25

Changes in configuration files (please check!)

    - SORT extensions: fourth parameter RELATED DISPLAY-CLASS:
                       relation to according DISPLAY-entry
                       (default is 'default')
                       see DISPLAY changes

                       fifth parameter SORT-ATTRIBUTE:
                       attribute used to sort entries
                       (default is 'sn')

    - DISPLAY changes: The DISPLAY objectClass entry is replaced by the string
                       that is used as fifth attribute with SORT

    - NO-PROXY (new):  option for access restrictions via PROXY-servers

    - TWEBHOST (new):  option to support a constant tweb-hostname

    - NO-MODIFY (new): option to prevent entries with named objectclasses from
                       modification

    - PGPKEY (new):    DISPLAY-TYPE for PGPKeys enabling cut&paste


  Changes to code

    - conversion from upper to lowercase characters in:
        make_oc_to_str(), pick_oc(), init_sort(), init_modify(),
        attrs in display() and all internal comparison-strings!!!

    - modification with multiline attributes now possible with NETSCAPE

    - pictures in X.500 are shown (only with NETSCAPE)

    - display is denied in do_read() in case of missing default-Display

    - technical entries (gw...) are not shown if using DYNAMIC-GW

    - the tokens to filter proxy-access with NO_PROXY are extended to:
      " via " & "Proxy gateway"

    - the tweb-version and compilation date is now shown with C & K options

    - many bugfixes


Version: tweb-1.0b, 1996/2/29

  Changes in configuration files (please check!)

    - ALLOW/DENY-String moved from tweb.conf.[01] to tweb.rc
    - tweb.lang.[01]: string 4  TEXT/HTML  -->  text/html
    - tweb.rc       : optional parameter TWEBHOST  (see FEATURE-LIST)

  Changes to code

    - better behaviour in modify operations
      BEWARE: modification of inherited attributes still NOT possible (!)

    - logging-option (-l) with facultative parameter: LOCAL[0-7] of syslogd

          -lx  -->  LOCAL3 (default)

    - simplified metasyntax of GW-switches:

          labeledURI= http://<host>:<port>/ <descriptive string> (gw[-<lang>])

    - use 'aliasedObjectName' in HREF of aliases
    - always print HTML header
    - many bugfixes


Version: tweb-1.0a, 1996/2/7

  - base distibution