[horde] Bypass Login with pre-auth because Language Selection on Login unnecessary

[Will Parker]

Hi Horde,

I have been reading on the lists and find a lot of information related  
to the language
selection drop down on login.

The suggestions I have tried from this has focused on the following  
two observations:

login.php

/* Build the <select> widget containing the available languages. */
if (!$prefs->isLocked('language')) {
     $_SESSION['horde_language'] = NLS::select();
     $langs = '<select name="new_lang" onchange="selectLang()">';
     foreach ($nls['languages'] as $key => $val) {
         $sel = ($key == $_SESSION['horde_language']) ? '  
selected="selected"' : '';
         $langs .= "<option value=\"$key\"$sel>$val</option>";
     }
     $langs .= '</select>';
}

and

config/prefs.php

// user language
$_prefs['language'] = array(
     'value' => '',
     'locked' => true,
     'shared' => true,
     'type' => 'select',
     'escaped' => true,
     'desc' => _("Select your preferred language:")
);

The changing of the 'value' for language and/or the 'locked' value  
work for me in so much
as they define the value in advance and remove the dropdown selector  
for language on the
login page respectively.

However the crux of my question is how does one bypass the necessity  
for a user who has
been pre-authenticated (using the webmail redirection scheme of  
cPanel/WHM - username and
password in a popup on approach to webmai.mydomain.com) and  
subsequently presented with a
login page with a <Log In> button only.

ie once the language is locked off and predefined the login page  
requires nothing more
than a <Log In> click from the user - no authentication is required  
and it is therefore a
matter of interrupting an otherwise automated login to the chosen  
portal page within the
horde.

Sorry if this is one of those things that has been answered ad-nauseum  
but I have not
been able to find it easily in the lists or web beyond the type of  
answers I have alluded
to above.

Best regards,
Will