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refactor: move the tax id, deploy, fragment and logo decisions into pure classes in src #15

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Merged
vitormattos merged 2 commits into from
Oct 1, 2026
+821 −689
Merged

refactor: move the tax id, deploy, fragment and logo decisions into pure classes in src #15

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66d32e4
refactor: move the tax id, deploy, fragment and logo decisions into p…
YvesCesar Sep 29, 2026
fd87ba1
refactor: load the fragment class in the webhook file that uses it
YvesCesar Sep 29, 2026
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7 changes: 7 additions & 0 deletions composer.json
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Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,11 @@
"wp-phpunit/wp-phpunit": "^7.0",
"wpackagist-plugin/woocommerce": "^11.0"
},
"autoload": {
"psr-4": {
"LibreSign\\WordPressTheme\\": "src/"
}
},
"autoload-dev": {
"psr-4": {
"LibreSign\\WordPressTheme\\Tests\\": "tests/"
Expand Down Expand Up @@ -55,8 +60,10 @@
"cs:fix": "phpcbf",
"stan": "phpstan analyse --memory-limit=2G",
"test": [
"@test:unit",
"@test:integration"
],
"test:unit": "phpunit",
"test:integration": "phpunit -c phpunit-integration.xml.dist",
"ci": [
"@lint",
Expand Down
118 changes: 15 additions & 103 deletions inc/cpf-cnpj.php
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Original file line number Diff line number Diff line change
Expand Up @@ -10,8 +10,12 @@
* @package libresign
*/

use LibreSign\WordPressTheme\TaxId;

defined( 'ABSPATH' ) || exit;

require_once dirname( __DIR__ ) . '/src/TaxId.php';

/**
* Register the CPF/CNPJ field in the checkout address section.
*/
Expand All @@ -35,89 +39,6 @@ function libresign_theme_register_cpf_cnpj_field() {
}
add_action( 'woocommerce_init', 'libresign_theme_register_cpf_cnpj_field' );

/**
* Validate CPF — 11-digit Brazilian individual taxpayer ID.
*
* Uses the standard Módulo 11 algorithm with decreasing weights 10..2 / 11..2.
*
* @param string $cpf Raw or formatted CPF (dots and dash are stripped).
* @return bool
*/
function libresign_theme_validate_cpf( string $cpf ): bool {
$cpf = preg_replace( '/[^0-9]/', '', $cpf );
if ( strlen( $cpf ) !== 11 ) {
return false;
}
// All identical digits (e.g. 000.000.000-00) are never valid.
if ( preg_match( '/^(\d)\1{10}$/', $cpf ) ) {
return false;
}

$mod11 = function ( string $str, int $start_weight ): int {
$sum = 0;
$w = $start_weight;
for ( $i = 0; $i < strlen( $str ); $i++ ) {
$sum += (int) $str[ $i ] * $w--;
}
$rem = $sum % 11;
return $rem < 2 ? 0 : 11 - $rem;
};

$dv1 = $mod11( substr( $cpf, 0, 9 ), 10 );
if ( $dv1 !== (int) $cpf[9] ) {
return false;
}
return $mod11( substr( $cpf, 0, 10 ), 11 ) === (int) $cpf[10];
}

/**
* Validate CNPJ — 14-character Brazilian company taxpayer ID.
*
* Handles both the legacy numeric format and the new alphanumeric format
* introduced by Instrução Normativa RFB nº 2.119/2022 (Anexo Único):
* - Positions 1–12: alphanumeric (root 8 chars + order 4 chars)
* - Positions 13–14: numeric check digits
*
* Algorithm: Módulo 11 with weights 2–9 assigned right-to-left, cycling
* back to 2 after reaching 9. Character value = ord(char) − 48, which gives
* the digit value for '0'–'9' (ASCII 48–57) and 17–42 for 'A'–'Z'
* (ASCII 65–90), exactly as specified in the Receita Federal table.
*
* @param string $cnpj Raw or formatted CNPJ (dots, slash, dash are stripped).
* @return bool
*/
function libresign_theme_validate_cnpj( string $cnpj ): bool {
$cnpj = strtoupper( preg_replace( '/[\.\-\/]/', '', $cnpj ) );
if ( strlen( $cnpj ) !== 14 ) {
return false;
}
// All identical digits — applies to legacy numeric CNPJs.
if ( preg_match( '/^(\d)\1{13}$/', $cnpj ) ) {
return false;
}
// Positions 1–12: uppercase letters or digits; positions 13–14: digits.
if ( ! preg_match( '/^[A-Z0-9]{12}\d{2}$/', $cnpj ) ) {
return false;
}

$mod11 = function ( string $str ): int {
$sum = 0;
$w = 2;
for ( $i = strlen( $str ) - 1; $i >= 0; $i-- ) {
$sum += ( ord( $str[ $i ] ) - 48 ) * $w;
$w = 9 === $w ? 2 : $w + 1;
}
$rem = $sum % 11;
return $rem < 2 ? 0 : 11 - $rem;
};

$dv1 = $mod11( substr( $cnpj, 0, 12 ) );
if ( $dv1 !== (int) $cnpj[12] ) {
return false;
}
return $mod11( substr( $cnpj, 0, 13 ) ) === (int) $cnpj[13];
}

/**
* Server-side enforcement via the address-location validation hook.
*
Expand All @@ -135,25 +56,16 @@ function libresign_theme_validate_cnpj( string $cnpj ): bool {
return;
}

$value = isset( $fields['libresign/cpf-cnpj'] ) ? trim( (string) $fields['libresign/cpf-cnpj'] ) : '';
if ( '' === $value ) {
$errors->add( 'libresign_cpf_cnpj_required', __( 'Please enter your CPF or CNPJ.', 'libresign' ) );
return;
}

$digits_only = preg_replace( '/[^0-9]/', '', $value );
$stripped = strtoupper( preg_replace( '/[\.\-\/]/', '', $value ) );
$messages = array(
'libresign_cpf_cnpj_required' => __( 'Please enter your CPF or CNPJ.', 'libresign' ),
'invalid_cnpj' => __( 'Please enter a valid CNPJ.', 'libresign' ),
'invalid_cpf' => __( 'Please enter a valid CPF.', 'libresign' ),
'invalid_cpf_cnpj' => __( 'Please enter a valid CPF (11 digits) or CNPJ (14 characters).', 'libresign' ),
);

if ( 14 === strlen( $stripped ) ) {
if ( ! libresign_theme_validate_cnpj( $value ) ) {
$errors->add( 'invalid_cnpj', __( 'Please enter a valid CNPJ.', 'libresign' ) );
}
} elseif ( 11 === strlen( $digits_only ) ) {
if ( ! libresign_theme_validate_cpf( $value ) ) {
$errors->add( 'invalid_cpf', __( 'Please enter a valid CPF.', 'libresign' ) );
}
} else {
$errors->add( 'invalid_cpf_cnpj', __( 'Please enter a valid CPF (11 digits) or CNPJ (14 characters).', 'libresign' ) );
$error_code = TaxId::error_code( isset( $fields['libresign/cpf-cnpj'] ) ? (string) $fields['libresign/cpf-cnpj'] : '' );
if ( '' !== $error_code ) {
$errors->add( $error_code, $messages[ $error_code ] );
}
}, 10, 3 );

Expand Down Expand Up @@ -190,7 +102,7 @@ function libresign_theme_strip_irrelevant_cpf_cnpj( $wc_object ) {
* 1. Visibility — hides the field for non-BR customers and reveals it when
* the billing country is Brazil, surviving React re-renders via a
* MutationObserver.
* 2. Validation — mirrors the PHP Módulo 11 algorithms above so the user
* 2. Validation — mirrors the Módulo 11 algorithms of src/TaxId.php so the user
* gets native WooCommerce Blocks error feedback (red border + message
* below the field) without a server round-trip. A re-entrancy guard
* prevents the wp.data subscriber from triggering itself in an infinite
Expand Down Expand Up @@ -249,7 +161,7 @@ function updateVisibility() {
}

// -----------------------------------------------------------------------
// Módulo 11 validation — mirrors the PHP functions in this file.
// Módulo 11 validation — mirrors src/TaxId.php.
// -----------------------------------------------------------------------

/**
Expand Down
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