Case-insensitive user-names in Symfony2

问题

By default, Symfony2 matches usernames case-sensitively. I want users to be able to enter johnsmith, JohnSmith, johnSMITH, or any variant of that, and have them all register as johnsmith. How do I do this?

I though the easiest way would be to always convert each username to lower-case before comparing them. This is easy to do on the one side (just throw a lower() into the SQL statement), but how do I do that for what the user types in in the login form? Since Symfony automatically takes care of the login_check route handling, I can't figure it out.

Better yet, is there some option I can set to enable case-insensitivity instead?

回答1:

You already fixed it, but I will explain another solution for users with similar problems:

You have to implement your own Provider this way: http://symfony.com/doc/current/cookbook/security/entity_provider.html#authenticating-someone-with-a-custom-entity-provider
Use the following query instead in method loadUserByUsername:

$user = $this->findOneBy(array('username' => strtolower($username)));

This worked for me. (Also in Doctrine Mongo ODM)

回答2:

Just write correct loadUserByUsername function in UserRepository. It must not be case sensitive:

public function loadUserByUsername($username)
{
    $user = $this->createQueryBuilder('u')
        ->where('LOWER(u.email) = :username')
        ->setParameter('username', strtolower($username))
        ->getQuery()
        ->getOneOrNullResult();

    if ($user){
       return $user;
    }

    throw new UsernameNotFoundException('Unable to find user "' . $username . '"');
}

回答3:

Did you try to convert the input into lowercase using CSS ? There are actually ways to control data input before it is handed to the login_check controller, but if you want a quick fix :

p {
    text-transform: lowercase;
}

回答4:

In your setUsername you could just have the text changed to lowercase like..

public function setUsername($username)
{
    $this->username = mb_strtolower($username);

    return $this;
}

For reference, FOSUserBundle handles this by "canonicalizing" the username (to usernameCanonical) and email address (to canonicalEmail) in the updateUser call (see Doctrine\UserManager that calls the Canonicalizer) which it then uses for searches.

回答5:

I feel like an idiot. All I had to do was add another lower() around the where clause in my SQL statement. Like this:

select lower(USERNAME) as USERNAME, PASSWORD, ROLES, ALL_CUSTOMER_ACCESS
from COMPANYNAME_USERS
where lower(USERNAME) = lower(:username)

来源：https://stackoverflow.com/questions/31662683/case-insensitive-user-names-in-symfony2

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symfony

username

case-insensitive