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<?php |
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|
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namespace Pushly\Admin; |
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|
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class Util { |
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private static ?array $_settings = null; |
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private static ?array $_options = null; |
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|
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/** |
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* Returns the full options array if an API key is configured, otherwise null. |
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*/ |
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public static function get_api_options(): ?array { |
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$options = get_option( 'pushly' ); |
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if ( empty( $options['api_key'] ) ) { |
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self::log_to_event_stream( 'no_api_key', 'Settings does not contain `api_key`.' ); |
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return null; |
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} |
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|
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return $options; |
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} |
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|
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/** |
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* Encrypts a value using AES-256-CTR with a random IV. |
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* Returns the original value unchanged if OpenSSL is unavailable. |
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*/ |
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public static function encrypt_api_key( string $salt, string $passphrase, string $value ): string { |
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if ( ! extension_loaded( 'openssl' ) ) { |
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return $value; |
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} |
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|
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$method = 'aes-256-ctr'; |
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$iv_len = openssl_cipher_iv_length( $method ); |
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$iv = openssl_random_pseudo_bytes( $iv_len ); |
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|
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$raw_value = openssl_encrypt( $value . $salt, $method, $passphrase, 0, $iv ); |
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if ( ! $raw_value ) { |
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self::log_to_event_stream( 'encrypt_api_key_failed', 'Failed to encrypt API key.' ); |
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} |
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|
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return base64_encode( $iv . $raw_value ); |
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} |
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|
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/** |
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* Decrypts an AES-256-CTR encrypted value and validates the salt. |
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* Returns false if decryption fails or the salt does not match. |
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* |
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* @return string|false |
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*/ |
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public static function decrypt_api_key( string $salt, string $passphrase, string $value ) { |
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if ( ! extension_loaded( 'openssl' ) ) { |
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return $value; |
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} |
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|
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$raw_value = base64_decode( $value, true ); |
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$method = 'aes-256-ctr'; |
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$iv_len = openssl_cipher_iv_length( $method ); |
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$iv = substr( $raw_value, 0, $iv_len ); |
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$raw_value = substr( $raw_value, $iv_len ); |
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|
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$decrypted = openssl_decrypt( $raw_value, $method, $passphrase, 0, $iv ); |
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if ( ! $decrypted || substr( $decrypted, -strlen( $salt ) ) !== $salt ) { |
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self::log_to_event_stream( 'decrypt_api_key_failed', 'Failed to decrypt API key.' ); |
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return false; |
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} |
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|
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return substr( $decrypted, 0, -strlen( $salt ) ); |
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} |
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|
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/** |
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* Sends a structured debug event to the Pushly event stream. |
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* Only fires when the WORDPRESS_DEBUG_EVENTS flag is enabled on the domain. |
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*/ |
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public static function log_to_event_stream( string $error_type, string $error_message, $data = null ): void { |
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try { |
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if ( self::$_options === null ) { |
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self::$_options = get_option( 'pushly' ) ?: []; |
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} |
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|
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if ( empty( self::$_options['sdk_key'] ) || empty( self::$_options['domain_id'] ) ) { |
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return; |
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} |
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|
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if ( self::$_settings === null ) { |
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// Cache domain settings for 5 minutes to avoid an HTTP call on every log |
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$cache_key = 'pushly_domain_settings_' . md5( self::$_options['sdk_key'] ); |
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$cached = get_transient( $cache_key ); |
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|
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if ( $cached !== false ) { |
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self::$_settings = $cached; |
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} else { |
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$request = wp_remote_get( 'https://' . PUSHLY__CDN_DOMAIN . '/domain-settings/' . self::$_options['sdk_key'] ); |
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if ( is_wp_error( $request ) ) { |
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return; |
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} |
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|
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self::$_settings = json_decode( wp_remote_retrieve_body( $request ), true ) ?: []; |
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set_transient( $cache_key, self::$_settings, 5 * MINUTE_IN_SECONDS ); |
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} |
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} |
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|
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if ( empty( self::$_settings['domain']['flags'] ) || ! in_array( 'WORDPRESS_DEBUG_EVENTS', self::$_settings['domain']['flags'], true ) ) { |
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return; |
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} |
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|
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global $wp_version; |
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|
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if ( $data !== null ) { |
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$error_message .= ' (' . serialize( $data ) . ')'; |
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} |
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|
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$payload = [ |
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'domain_id' => self::$_options['domain_id'], |
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'action' => 'error', |
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'data' => [ |
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'error_type' => "wordpress_{$error_type}", |
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'error_message' => $error_message, |
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], |
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'meta' => [ |
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'application' => [ |
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'identifier' => 'wordpress', |
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'version' => $wp_version, |
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], |
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'sdk' => [ |
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'name' => 'pushly-wordpress-plugin', |
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'version' => PUSHLY__PLUGIN_VERSION, |
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], |
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'event' => [ 'version' => 3 ], |
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], |
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]; |
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|
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wp_remote_request( 'https://' . PUSHLY__K_DOMAIN . '/event-stream', [ |
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'method' => 'POST', |
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'body' => wp_json_encode( $payload ), |
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] ); |
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} catch ( \Exception $e ) { |
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// Intentionally silent — logging must never cause a visible error |
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} |
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} |
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} |
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|
