PHP code example of linna / csrf-guard

1. Go to this page and download the library: Download linna/csrf-guard library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php.

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

linna / csrf-guard example snippets


//start the session
\session_start();

//generate token provider
$provider = ProviderSimpleFactory::getProvider();


//previous php code

//get a token from provider
$token = $provider->getToken();


//previous php code

//true if valid, false otherwise
$isValid = $provider->validate($token);


//start the session
\session_start();

//get specific encryption token provider
$provider = ProviderSimpleFactory::getProvider(
    provider: EncryptionTokenProvider::class, // specific token provider
    options: [                                // options
        'expire' => 3600,                     // token expire in 3600 seconds, 1 hour
        'storageSize' => 16,                  // provider can store maximum 1 key and 16 nonces per session,
        'tokenLength' => 16                   // desidered token length in bytes, token will be used as plaintext and not stored
    ]
);


//get specific hmac token provider
$provider = ProviderSimpleFactory::getProvider(
    provider: HmacTokenProvider::class,             // specific token provider
    options: [                                      // options
        'value' => 'value will be hashed in token', // value will be hashed in token
        'key' => 'key_to_authenticate'              // key to authenticate the hash
    ]
);


//start the session
\session_start();

//get specific syncronizer token provider
$provider = ProviderSimpleFactory::getProvider(
    provider: SynchronizerTokenProvider::class, // specific token provider
    options: [                                  // options
        'expire' => 3600,                       // token expire in 3600 seconds, 1 hour
        'storageSize' => 16,                    // provider can store maximum 16 token per session,
        'tokenLength' => 32                     // desidered token length in bytes, token will be the double in chars
    ]
);