Username Registration (A-Z, 0-9 Characters Only)

In Reply to this thread: https://vborg.vbsupport.ru/showthread.php?t=92308

Only accept usernames with no special characters or spaces.

Database query:

Open up PhpMyAdmin, goto to your vbulletin database, run following query:

INSERT INTO setting ( varname , grouptitle , value , defaultvalue , optioncode , displayorder , advanced , volatile )
VALUES (
'az09characters', 'register', '1', '1', 'yesno', '101', '0', '1'
)

Phrases To Add:

Phrase Type: Front-End Error Messages
Varname:     az09charactersonly
Text:        Only  characters A-Z, 0-9 may be used in usernames, no spaces, no special ascii-type letters.

Phrase Type: vBulletin Settings
Varname:     setting_az09characters_title
Text:	     Disallow Special Characters

Phrase type: vBulletin Settings
Varname:     setting_az09characters_desc
Text:        Setting this to "yes" prevents users from using special characters or spaces in there user name.

File Modifications:

Open:

[forumroot]/register.php

Find:

PHP Code:

    // check username does not contain semi-colons
    if (preg_match('/(?<!&#[0-9]{3}|&#[0-9]{4}|&#[0-9]{5});/', $_POST['username']))
    {
        //eval(print_standard_error('error_username_semicolon'));
        eval('$errors[10] = "' . fetch_phrase('username_semicolon', PHRASETYPEID_ERROR) . '";');
    } 


Above that add:

PHP Code:

    // Only A-Z, 0-9 Characters Only */
    if ($vboptions['az09characters'])
    {
        if (!eregi("^[A-Za-z0-9]+$", $_POST['username']))
        {
            eval(print_standard_error('error_az09charactersonly'));
        }    
    } 


Save:

register.php

Now users can not use special chars or spaces in their username when signing up.

To disable the function goto, Admin CP > vBulletin Options > User Registration Options.
Find the yes/no option under ?Disallow Special Characters ?

That's all, Gr3?Tz Untold....

[altsounds]

How can I use this to allow a-z A-z 0-9 and spaces?? In other words what would I need to do to get this existing hack to work but still allow spaces in usernames??

[untold4you]

Originally Posted by altsounds

How can I use this to allow a-z A-z 0-9 and spaces?? In other words what would I need to do to get this existing hack to work but still allow spaces in usernames??

PHP Code:

// Only A-Z, 0-9 [:space:] Characters Only */ 
    if ($vboptions['az09characters']) 
    { 
        if (!eregi("^[A-Za-z0-9 ]+$", $_POST['username'])) 
        { 
            eval(print_standard_error('error_az09charactersonly')); 
        }     
    } 


Like you asked, how to allow spaces? Just put a space in the regex

[altsounds]

Thanks will try this tommorow

[altsounds]

Added this today and it works a treat!! Thanks untold4you.

[akanevsky]

Nice hack bro, but could you please make a vBulletin option that would allow board administrator to specify a custom allowed letter range (so that besides English, another language or languages would be allowed)? Thanks

[untold4you]

Originally Posted by Dark Visor

Nice hack bro, but could you please make a vBulletin option that would allow board administrator to specify a custom allowed letter range (so that besides English, another language or languages would be allowed)? Thanks

Will look into that m8, however 3.5.0 version it will be.

Gr3?Tz...

[akanevsky]

however 3.5.0 version it will be

It's all good, because I plan to upgrade each my board shortly... And why would I want any more hack for 3.0.x, if 3.5.0 is much better? :P

[untold4you]

Originally Posted by Dark Visor

a vBulletin option that would allow board administrator to specify a custom allowed letter range (so that besides English, another language or languages would be allowed)

Hmm let me think, i could make a field in the options where you can enter your own regex? Would that do the job ? Because i'm not a regex freak :disappointed:

[akanevsky]

Yes, and all you have to do is replace

if (!eregi("^[A-Za-z0-9]+$", $_POST['username']))

With

if (!eregi("^[A-Za-z" . $vboptions['mycustomoption'] . "0-9]+$", $_POST['username']))

That way when the option is filled by the admin, it will automatically be inserted into your regex
Also, a shorter form of "A-Za-z" in a regex would be a simple "A-z"

[eljeffe]

Originally Posted by untold4you

PHP Code:

// Only A-Z, 0-9 [:space:] Characters Only */ 
    if ($vboptions['az09characters']) 
    { 
        if (!eregi("^[A-Za-z0-9 ]+$", $_POST['username'])) 
        { 
            eval(print_standard_error('error_az09charactersonly')); 
        }     
    } 


Like you asked, how to allow spaces? Just put a space in the regex

Is there a way to modify this to accept dash and underscore as valid characters?