I get http error 500 "Internal Server Error" when I try to log in. What's wrong?

This can happen if the encrypted passwords are not created on the web server that hosts the PmWiki. The crypt function changed during the PHP development, e.g. a password encrypted with PHP 5.2 can not be decrypted in PHP 5.1, but PHP 5.2 can decrypt passwords created by PHP 5.1. This situation normally happens if you prepare everything on your local machine with the latest PHP version and you upload the passwords to a webserver which is running an older version. The same error occurs when you add encrypted passwords to local/config.php.

Solution: Create the passwords on the system with the oldest PHP version and use them on all other systems.

if i already specified a group in local/config.php, then i set the same group on SiteAdmin/AuthUser then will it merge all users in that same group?

It is supposed to work this way -- in config.php you set for example:

  $DefaultPasswords['edit'] = '@editors';

then, in the page SiteAdmin/AuthUser you define all users of the @editors group:

  @editors: Alice, Bob

I want to allow anyone to edit my wiki, but don't want anyone else to use my name as the author.

Yes, use such a code in config.php:

  ## Preventing others posting as "Pm" or "Petko"
  if( preg_match('/^(Pm|Petko)$/i', trim(@$_POST['author'])) ){
    $DefaultPasswords['edit'] = '@lock';
    $MessagesFmt[] = "To post as '{$_POST['author']}' please log in.";
  }

This will display the authentication form when a user tries to post as Pm or as Petko. Note that these users need to know the admin password to get through.

Not-answered questions

How can I access the authorization groups that the current user belongs to in order to test using that as a condition of an if statement?

forceflow?: Dirty hack I found: create a lone page (DirtyHackPage) somewhere, and only give a certain group (apples, for example), the rights to read it. Then you can use (:if auth read DirtyHackPage:) to identify members of the apples group. It's dirty, but does the trick if you only have limited amount of groups.

Is there any way to have groups inherit other groups (e.g. @fruits: @apples, @oranges, jack)?

Is it possible to list more than one .htpasswd and .htgroup file to be used?

I'm facing a problem with authentication using MySQL database.

I have been trying to set site-wide authorizations and getting really frustrated. I have the following lines in my config.php:

 $DefaultPasswords['edit'] = crypt('edit_password');
 $DefaultPasswords['read'] = crypt('read_password');
 $DefaultPasswords['admin'] = crypt('admin_password');
 $include_once("scripts/authuser.php");

But I can still freely edit many pages. Some not, some yes. I've tried manually "clearing" passwords on pages that I seem to be able to edit.

What gives?

biocwiki.physics.indiana.edu/~abalter/pmwiki/pmwiki.php

Is there a way that people could self-register through AuthUser?

Chris I'm trying to do this same thing now via phpbb 3.0's authentication and database. If that's an option here's how I plan on doing it. I have the phpbb 3.0 working with an sql database thanks to godaddy. I think all you need are 4 other cookbooks, AuthUserDbase dependent on AuthUser, ADOdb, DatabaseStandard. I'm going to use Cookbook:AuthUserDbase "setting for using another program's database for authentication. Then I'll need to figure out how to set user permissions to their own created content. I'd love to package all 4 of these cookbooks, and some default lines to add to a config.php to enable any new pmwiki hosts to easily connect to an existing database with minimal "dirty work". Best of luck to us both, Mark (reach me at webmeister@dreamsnare.com the site I'm building is dreamsnare.com).

Please see Cookbook:AuthUserSignup for a solution to this problem. Peter Bowers? October 25, 2008, at 01:45 PM

This is totally true! I've been working with Peter? on getting this installed and I can truly say that this is the most complete authentication system for AuthUserSignup?. Real Chris? November 19, 2008, at 05:15 AM