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Noah Goodrich
Asked: 2011-06-19 20:42:30 +0800 CST

$_SERVER['PHP_AUTH_DIGEST'] empty with mod_auth_digest enabled

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The output from sudo apachectl -t -D DUMP_MODULES

Loaded Modules:
 core_module (static)
 log_config_module (static)
 logio_module (static)
 mpm_prefork_module (static)
 http_module (static)
 so_module (static)
 alias_module (shared)
 auth_basic_module (shared)
 auth_digest_module (shared)
 authn_file_module (shared)
 authz_default_module (shared)
 authz_groupfile_module (shared)
 authz_host_module (shared)
 authz_user_module (shared)
 autoindex_module (shared)
 cgi_module (shared)
 deflate_module (shared)
 dir_module (shared)
 env_module (shared)
 headers_module (shared)
 mime_module (shared)
 negotiation_module (shared)
 php5_module (shared)
 reqtimeout_module (shared)
 rewrite_module (shared)
 setenvif_module (shared)
 ssl_module (shared)
 status_module (shared)
Syntax OK

Seems to indicate that the digest auth module is working on my server, but when I try to access $_SERVER['PHP_AUTH_DIGEST'], the variable doesn't exist.

My virtualhost setup is:

<VirtualHost *:80>
        ServerName sam
        DocumentRoot /var/www/sam/public/
        ErrorLog /var/log/apache2/sam-error.log

        SetEnv APPLICATION_ENV "development"

        <Directory /var/www/sam/public>
                DirectoryIndex index.php
                AllowOverride All
                Order allow,deny
                Allow from all
                #AuthType Digest
                #AuthName "api"
        </Directory>
</VirtualHost>
apache2

1 Answers

  1. In your Apache configuration, you've not enabled Digest authentication. Try uncommenting the relevant lines and restart Apache through sudo /etc/init.d/apache2 restart:

    <VirtualHost *:80>
        ServerName sam
        DocumentRoot /var/www/sam/public/
        ErrorLog /var/log/apache2/sam-error.log

        SetEnv APPLICATION_ENV "development"

        <Directory /var/www/sam/public>
                DirectoryIndex index.php
                AllowOverride All
                Order allow,deny
                Allow from all
                AuthType Digest
                AuthName "api"
        </Directory>
</VirtualHost>

    If this did not work or gives a server error, check the error log in /var/log/apache2/access.log.

    If you implement Digest authentication, you may want to check the digest authentication example on php.net. A description of all $_SERVER variables can be found here.

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