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File Name : abstract-kkart-settings-api.php

<?php
/**
 * Abstract Settings API Class
 *
 * Admin Settings API used by Integrations, Shipping Methods, and Payment Gateways.
 *
 * @package  Kkart\Abstracts
 */

defined( 'ABSPATH' ) || exit;

/**
 * KKART_Settings_API class.
 */
abstract class KKART_Settings_API {

/**
	 * The plugin ID. Used for option names.
	 *
	 * @var string
	 */
	public $plugin_id = 'kkart_';

/**
	 * ID of the class extending the settings API. Used in option names.
	 *
	 * @var string
	 */
	public $id = '';

/**
	 * Validation errors.
	 *
	 * @var array of strings
	 */
	public $errors = array();

/**
	 * Setting values.
	 *
	 * @var array
	 */
	public $settings = array();

/**
	 * Form option fields.
	 *
	 * @var array
	 */
	public $form_fields = array();

/**
	 * The posted settings data. When empty, $_POST data will be used.
	 *
	 * @var array
	 */
	protected $data = array();

/**
	 * Get the form fields after they are initialized.
	 *
	 * @return array of options
	 */
	public function get_form_fields() {
		return apply_filters( 'kkart_settings_api_form_fields_' . $this->id, array_map( array( $this, 'set_defaults' ), $this->form_fields ) );
	}

/**
	 * Set default required properties for each field.
	 *
	 * @param array $field Setting field array.
	 * @return array
	 */
	protected function set_defaults( $field ) {
		if ( ! isset( $field['default'] ) ) {
			$field['default'] = '';
		}
		return $field;
	}

/**
	 * Output the admin options table.
	 */
	public function admin_options() {
		echo '<table class="form-table">' . $this->generate_settings_html( $this->get_form_fields(), false ) . '</table>'; // WPCS: XSS ok.
	}

/**
	 * Initialise settings form fields.
	 *
	 * Add an array of fields to be displayed on the gateway's settings screen.
	 *
	 * @since  1.0.0
	 */
	public function init_form_fields() {}

/**
	 * Return the name of the option in the WP DB.
	 *
	 * @since 2.6.0
	 * @return string
	 */
	public function get_option_key() {
		return $this->plugin_id . $this->id . '_settings';
	}

/**
	 * Get a fields type. Defaults to "text" if not set.
	 *
	 * @param  array $field Field key.
	 * @return string
	 */
	public function get_field_type( $field ) {
		return empty( $field['type'] ) ? 'text' : $field['type'];
	}

/**
	 * Get a fields default value. Defaults to "" if not set.
	 *
	 * @param  array $field Field key.
	 * @return string
	 */
	public function get_field_default( $field ) {
		return empty( $field['default'] ) ? '' : $field['default'];
	}

/**
	 * Get a field's posted and validated value.
	 *
	 * @param string $key Field key.
	 * @param array  $field Field array.
	 * @param array  $post_data Posted data.
	 * @return string
	 */
	public function get_field_value( $key, $field, $post_data = array() ) {
		$type      = $this->get_field_type( $field );
		$field_key = $this->get_field_key( $key );
		$post_data = empty( $post_data ) ? $_POST : $post_data; // WPCS: CSRF ok, input var ok.
		$value     = isset( $post_data[ $field_key ] ) ? $post_data[ $field_key ] : null;

if ( isset( $field['sanitize_callback'] ) && is_callable( $field['sanitize_callback'] ) ) {
			return call_user_func( $field['sanitize_callback'], $value );
		}

// Look for a validate_FIELDID_field method for special handling.
		if ( is_callable( array( $this, 'validate_' . $key . '_field' ) ) ) {
			return $this->{'validate_' . $key . '_field'}( $key, $value );
		}

// Look for a validate_FIELDTYPE_field method.
		if ( is_callable( array( $this, 'validate_' . $type . '_field' ) ) ) {
			return $this->{'validate_' . $type . '_field'}( $key, $value );
		}

// Fallback to text.
		return $this->validate_text_field( $key, $value );
	}

/**
	 * Sets the POSTed data. This method can be used to set specific data, instead of taking it from the $_POST array.
	 *
	 * @param array $data Posted data.
	 */
	public function set_post_data( $data = array() ) {
		$this->data = $data;
	}

/**
	 * Returns the POSTed data, to be used to save the settings.
	 *
	 * @return array
	 */
	public function get_post_data() {
		if ( ! empty( $this->data ) && is_array( $this->data ) ) {
			return $this->data;
		}
		return $_POST; // WPCS: CSRF ok, input var ok.
	}

/**
	 * Update a single option.
	 *
	 * @since 3.4.0
	 * @param string $key Option key.
	 * @param mixed  $value Value to set.
	 * @return bool was anything saved?
	 */
	public function update_option( $key, $value = '' ) {
		if ( empty( $this->settings ) ) {
			$this->init_settings();
		}

$this->settings[ $key ] = $value;

return update_option( $this->get_option_key(), apply_filters( 'kkart_settings_api_sanitized_fields_' . $this->id, $this->settings ), 'yes' );
	}

/**
	 * Processes and saves options.
	 * If there is an error thrown, will continue to save and validate fields, but will leave the erroring field out.
	 *
	 * @return bool was anything saved?
	 */
	public function process_admin_options() {
		$this->init_settings();

$post_data = $this->get_post_data();

foreach ( $this->get_form_fields() as $key => $field ) {
			if ( 'title' !== $this->get_field_type( $field ) ) {
				try {
					$this->settings[ $key ] = $this->get_field_value( $key, $field, $post_data );
				} catch ( Exception $e ) {
					$this->add_error( $e->getMessage() );
				}
			}
		}

return update_option( $this->get_option_key(), apply_filters( 'kkart_settings_api_sanitized_fields_' . $this->id, $this->settings ), 'yes' );
	}

/**
	 * Add an error message for display in admin on save.
	 *
	 * @param string $error Error message.
	 */
	public function add_error( $error ) {
		$this->errors[] = $error;
	}

/**
	 * Get admin error messages.
	 */
	public function get_errors() {
		return $this->errors;
	}

/**
	 * Display admin error messages.
	 */
	public function display_errors() {
		if ( $this->get_errors() ) {
			echo '<div id="kkart_errors" class="error notice is-dismissible">';
			foreach ( $this->get_errors() as $error ) {
				echo '<p>' . wp_kses_post( $error ) . '</p>';
			}
			echo '</div>';
		}
	}

/**
	 * Initialise Settings.
	 *
	 * Store all settings in a single database entry
	 * and make sure the $settings array is either the default
	 * or the settings stored in the database.
	 *
	 * @since 1.0.0
	 * @uses get_option(), add_option()
	 */
	public function init_settings() {
		$this->settings = get_option( $this->get_option_key(), null );

// If there are no settings defined, use defaults.
		if ( ! is_array( $this->settings ) ) {
			$form_fields    = $this->get_form_fields();
			$this->settings = array_merge( array_fill_keys( array_keys( $form_fields ), '' ), wp_list_pluck( $form_fields, 'default' ) );
		}
	}

/**
	 * Get option from DB.
	 *
	 * Gets an option from the settings API, using defaults if necessary to prevent undefined notices.
	 *
	 * @param  string $key Option key.
	 * @param  mixed  $empty_value Value when empty.
	 * @return string The value specified for the option or a default value for the option.
	 */
	public function get_option( $key, $empty_value = null ) {
		if ( empty( $this->settings ) ) {
			$this->init_settings();
		}

// Get option default if unset.
		if ( ! isset( $this->settings[ $key ] ) ) {
			$form_fields            = $this->get_form_fields();
			$this->settings[ $key ] = isset( $form_fields[ $key ] ) ? $this->get_field_default( $form_fields[ $key ] ) : '';
		}

if ( ! is_null( $empty_value ) && '' === $this->settings[ $key ] ) {
			$this->settings[ $key ] = $empty_value;
		}

return $this->settings[ $key ];
	}

/**
	 * Prefix key for settings.
	 *
	 * @param  string $key Field key.
	 * @return string
	 */
	public function get_field_key( $key ) {
		return $this->plugin_id . $this->id . '_' . $key;
	}

/**
	 * Generate Settings HTML.
	 *
	 * Generate the HTML for the fields on the "settings" screen.
	 *
	 * @param array $form_fields (default: array()) Array of form fields.
	 * @param bool  $echo Echo or return.
	 * @return string the html for the settings
	 * @since  1.0.0
	 * @uses   method_exists()
	 */
	public function generate_settings_html( $form_fields = array(), $echo = true ) {
		if ( empty( $form_fields ) ) {
			$form_fields = $this->get_form_fields();
		}

$html = '';
		foreach ( $form_fields as $k => $v ) {
			$type = $this->get_field_type( $v );

if ( method_exists( $this, 'generate_' . $type . '_html' ) ) {
				$html .= $this->{'generate_' . $type . '_html'}( $k, $v );
			} else {
				$html .= $this->generate_text_html( $k, $v );
			}
		}

if ( $echo ) {
			echo $html; // WPCS: XSS ok.
		} else {
			return $html;
		}
	}

/**
	 * Get HTML for tooltips.
	 *
	 * @param  array $data Data for the tooltip.
	 * @return string
	 */
	public function get_tooltip_html( $data ) {
		if ( true === $data['desc_tip'] ) {
			$tip = $data['description'];
		} elseif ( ! empty( $data['desc_tip'] ) ) {
			$tip = $data['desc_tip'];
		} else {
			$tip = '';
		}

return $tip ? kkart_help_tip( $tip, true ) : '';
	}

/**
	 * Get HTML for descriptions.
	 *
	 * @param  array $data Data for the description.
	 * @return string
	 */
	public function get_description_html( $data ) {
		if ( true === $data['desc_tip'] ) {
			$description = '';
		} elseif ( ! empty( $data['desc_tip'] ) ) {
			$description = $data['description'];
		} elseif ( ! empty( $data['description'] ) ) {
			$description = $data['description'];
		} else {
			$description = '';
		}

return $description ? '<p class="description">' . wp_kses_post( $description ) . '</p>' . "\n" : '';
	}

/**
	 * Get custom attributes.
	 *
	 * @param  array $data Field data.
	 * @return string
	 */
	public function get_custom_attribute_html( $data ) {
		$custom_attributes = array();

if ( ! empty( $data['custom_attributes'] ) && is_array( $data['custom_attributes'] ) ) {
			foreach ( $data['custom_attributes'] as $attribute => $attribute_value ) {
				$custom_attributes[] = esc_attr( $attribute ) . '="' . esc_attr( $attribute_value ) . '"';
			}
		}

return implode( ' ', $custom_attributes );
	}

/**
	 * Generate Text Input HTML.
	 *
	 * @param string $key Field key.
	 * @param array  $data Field data.
	 * @since  1.0.0
	 * @return string
	 */
	public function generate_text_html( $key, $data ) {
		$field_key = $this->get_field_key( $key );
		$defaults  = array(
			'title'             => '',
			'disabled'          => false,
			'class'             => '',
			'css'               => '',
			'placeholder'       => '',
			'type'              => 'text',
			'desc_tip'          => false,
			'description'       => '',
			'custom_attributes' => array(),
		);

$data = wp_parse_args( $data, $defaults );

return ob_get_clean();
	}

/**
	 * Generate Price Input HTML.
	 *
	 * @param string $key Field key.
	 * @param array  $data Field data.
	 * @since  1.0.0
	 * @return string
	 */
	public function generate_price_html( $key, $data ) {
		$field_key = $this->get_field_key( $key );
		$defaults  = array(
			'title'             => '',
			'disabled'          => false,
			'class'             => '',
			'css'               => '',
			'placeholder'       => '',
			'type'              => 'text',
			'desc_tip'          => false,
			'description'       => '',
			'custom_attributes' => array(),
		);

$data = wp_parse_args( $data, $defaults );

return ob_get_clean();
	}

/**
	 * Generate Decimal Input HTML.
	 *
	 * @param string $key Field key.
	 * @param array  $data Field data.
	 * @since  1.0.0
	 * @return string
	 */
	public function generate_decimal_html( $key, $data ) {
		$field_key = $this->get_field_key( $key );
		$defaults  = array(
			'title'             => '',
			'disabled'          => false,
			'class'             => '',
			'css'               => '',
			'placeholder'       => '',
			'type'              => 'text',
			'desc_tip'          => false,
			'description'       => '',
			'custom_attributes' => array(),
		);

$data = wp_parse_args( $data, $defaults );

return ob_get_clean();
	}

/**
	 * Generate Password Input HTML.
	 *
	 * @param string $key Field key.
	 * @param array  $data Field data.
	 * @since  1.0.0
	 * @return string
	 */
	public function generate_password_html( $key, $data ) {
		$data['type'] = 'password';
		return $this->generate_text_html( $key, $data );
	}

/**
	 * Generate Color Picker Input HTML.
	 *
	 * @param string $key Field key.
	 * @param array  $data Field data.
	 * @since  1.0.0
	 * @return string
	 */
	public function generate_color_html( $key, $data ) {
		$field_key = $this->get_field_key( $key );
		$defaults  = array(
			'title'             => '',
			'disabled'          => false,
			'class'             => '',
			'css'               => '',
			'placeholder'       => '',
			'desc_tip'          => false,
			'description'       => '',
			'custom_attributes' => array(),
		);

$data = wp_parse_args( $data, $defaults );

return ob_get_clean();
	}

/**
	 * Generate Textarea HTML.
	 *
	 * @param string $key Field key.
	 * @param array  $data Field data.
	 * @since  1.0.0
	 * @return string
	 */
	public function generate_textarea_html( $key, $data ) {
		$field_key = $this->get_field_key( $key );
		$defaults  = array(
			'title'             => '',
			'disabled'          => false,
			'class'             => '',
			'css'               => '',
			'placeholder'       => '',
			'type'              => 'text',
			'desc_tip'          => false,
			'description'       => '',
			'custom_attributes' => array(),
		);

$data = wp_parse_args( $data, $defaults );

return ob_get_clean();
	}

/**
	 * Generate Checkbox HTML.
	 *
	 * @param string $key Field key.
	 * @param array  $data Field data.
	 * @since  1.0.0
	 * @return string
	 */
	public function generate_checkbox_html( $key, $data ) {
		$field_key = $this->get_field_key( $key );
		$defaults  = array(
			'title'             => '',
			'label'             => '',
			'disabled'          => false,
			'class'             => '',
			'css'               => '',
			'type'              => 'text',
			'desc_tip'          => false,
			'description'       => '',
			'custom_attributes' => array(),
		);

$data = wp_parse_args( $data, $defaults );

if ( ! $data['label'] ) {
			$data['label'] = $data['title'];
		}

return ob_get_clean();
	}

/**
	 * Generate Select HTML.
	 *
	 * @param string $key Field key.
	 * @param array  $data Field data.
	 * @since  1.0.0
	 * @return string
	 */
	public function generate_select_html( $key, $data ) {
		$field_key = $this->get_field_key( $key );
		$defaults  = array(
			'title'             => '',
			'disabled'          => false,
			'class'             => '',
			'css'               => '',
			'placeholder'       => '',
			'type'              => 'text',
			'desc_tip'          => false,
			'description'       => '',
			'custom_attributes' => array(),
			'options'           => array(),
		);

$data = wp_parse_args( $data, $defaults );

return ob_get_clean();
	}

/**
	 * Generate Multiselect HTML.
	 *
	 * @param string $key Field key.
	 * @param array  $data Field data.
	 * @since  1.0.0
	 * @return string
	 */
	public function generate_multiselect_html( $key, $data ) {
		$field_key = $this->get_field_key( $key );
		$defaults  = array(
			'title'             => '',
			'disabled'          => false,
			'class'             => '',
			'css'               => '',
			'placeholder'       => '',
			'type'              => 'text',
			'desc_tip'          => false,
			'description'       => '',
			'custom_attributes' => array(),
			'select_buttons'    => false,
			'options'           => array(),
		);

$data  = wp_parse_args( $data, $defaults );
		$value = (array) $this->get_option( $key, array() );

ob_start();
		?>
		<tr valign="top">
			<th scope="row" class="titledesc">
				<label for="<?php echo esc_attr( $field_key ); ?>"><?php echo wp_kses_post( $data['title'] ); ?> <?php echo $this->get_tooltip_html( $data ); // WPCS: XSS ok. ?></label>
			</th>
			<td class="forminp">
				<fieldset>
					<legend class="screen-reader-text"><span><?php echo wp_kses_post( $data['title'] ); ?></span></legend>
					<select multiple="multiple" class="multiselect <?php echo esc_attr( $data['class'] ); ?>" name="<?php echo esc_attr( $field_key ); ?>[]" id="<?php echo esc_attr( $field_key ); ?>" style="<?php echo esc_attr( $data['css'] ); ?>" <?php disabled( $data['disabled'], true ); ?> <?php echo $this->get_custom_attribute_html( $data ); // WPCS: XSS ok. ?>>
						<?php foreach ( (array) $data['options'] as $option_key => $option_value ) : ?>
							<?php if ( is_array( $option_value ) ) : ?>
								<optgroup label="<?php echo esc_attr( $option_key ); ?>">
									<?php foreach ( $option_value as $option_key_inner => $option_value_inner ) : ?>
										<option value="<?php echo esc_attr( $option_key_inner ); ?>" <?php selected( in_array( (string) $option_key_inner, $value, true ), true ); ?>><?php echo esc_html( $option_value_inner ); ?></option>
									<?php endforeach; ?>
								</optgroup>
							<?php else : ?>
								<option value="<?php echo esc_attr( $option_key ); ?>" <?php selected( in_array( (string) $option_key, $value, true ), true ); ?>><?php echo esc_html( $option_value ); ?></option>
							<?php endif; ?>
						<?php endforeach; ?>
					</select>
					<?php echo $this->get_description_html( $data ); // WPCS: XSS ok. ?>
					<?php if ( $data['select_buttons'] ) : ?>
						<br/><a class="select_all button" href="#"><?php esc_html_e( 'Select all', 'kkart' ); ?></a> <a class="select_none button" href="#"><?php esc_html_e( 'Select none', 'kkart' ); ?></a>
					<?php endif; ?>
				</fieldset>
			</td>
		</tr>
		<?php

return ob_get_clean();
	}

/**
	 * Generate Title HTML.
	 *
	 * @param string $key Field key.
	 * @param array  $data Field data.
	 * @since  1.0.0
	 * @return string
	 */
	public function generate_title_html( $key, $data ) {
		$field_key = $this->get_field_key( $key );
		$defaults  = array(
			'title' => '',
			'class' => '',
		);

$data = wp_parse_args( $data, $defaults );

ob_start();
		?>
			</table>
			<h3 class="kkart-settings-sub-title <?php echo esc_attr( $data['class'] ); ?>" id="<?php echo esc_attr( $field_key ); ?>"><?php echo wp_kses_post( $data['title'] ); ?></h3>
			<?php if ( ! empty( $data['description'] ) ) : ?>
				<p><?php echo wp_kses_post( $data['description'] ); ?></p>
			<?php endif; ?>
			<table class="form-table">
		<?php

return ob_get_clean();
	}

/**
	 * Validate Text Field.
	 *
	 * Make sure the data is escaped correctly, etc.
	 *
	 * @param  string $key Field key.
	 * @param  string $value Posted Value.
	 * @return string
	 */
	public function validate_text_field( $key, $value ) {
		$value = is_null( $value ) ? '' : $value;
		return wp_kses_post( trim( stripslashes( $value ) ) );
	}

/**
	 * Validate Price Field.
	 *
	 * Make sure the data is escaped correctly, etc.
	 *
	 * @param  string $key Field key.
	 * @param  string $value Posted Value.
	 * @return string
	 */
	public function validate_price_field( $key, $value ) {
		$value = is_null( $value ) ? '' : $value;
		return ( '' === $value ) ? '' : kkart_format_decimal( trim( stripslashes( $value ) ) );
	}

/**
	 * Validate Decimal Field.
	 *
	 * Make sure the data is escaped correctly, etc.
	 *
	 * @param  string $key Field key.
	 * @param  string $value Posted Value.
	 * @return string
	 */
	public function validate_decimal_field( $key, $value ) {
		$value = is_null( $value ) ? '' : $value;
		return ( '' === $value ) ? '' : kkart_format_decimal( trim( stripslashes( $value ) ) );
	}

/**
	 * Validate Password Field. No input sanitization is used to avoid corrupting passwords.
	 *
	 * @param  string $key Field key.
	 * @param  string $value Posted Value.
	 * @return string
	 */
	public function validate_password_field( $key, $value ) {
		$value = is_null( $value ) ? '' : $value;
		return trim( stripslashes( $value ) );
	}

/**
	 * Validate Textarea Field.
	 *
	 * @param  string $key Field key.
	 * @param  string $value Posted Value.
	 * @return string
	 */
	public function validate_textarea_field( $key, $value ) {
		$value = is_null( $value ) ? '' : $value;
		return wp_kses(
			trim( stripslashes( $value ) ),
			array_merge(
				array(
					'iframe' => array(
						'src'   => true,
						'style' => true,
						'id'    => true,
						'class' => true,
					),
				),
				wp_kses_allowed_html( 'post' )
			)
		);
	}

/**
	 * Validate Checkbox Field.
	 *
	 * If not set, return "no", otherwise return "yes".
	 *
	 * @param  string $key Field key.
	 * @param  string $value Posted Value.
	 * @return string
	 */
	public function validate_checkbox_field( $key, $value ) {
		return ! is_null( $value ) ? 'yes' : 'no';
	}

/**
	 * Validate Select Field.
	 *
	 * @param  string $key Field key.
	 * @param  string $value Posted Value.
	 * @return string
	 */
	public function validate_select_field( $key, $value ) {
		$value = is_null( $value ) ? '' : $value;
		return kkart_clean( stripslashes( $value ) );
	}

/**
	 * Validate Multiselect Field.
	 *
	 * @param  string $key Field key.
	 * @param  string $value Posted Value.
	 * @return string|array
	 */
	public function validate_multiselect_field( $key, $value ) {
		return is_array( $value ) ? array_map( 'kkart_clean', array_map( 'stripslashes', $value ) ) : '';
	}

/**
	 * Validate the data on the "Settings" form.
	 *
	 * @deprecated 2.6.0 No longer used.
	 * @param array $form_fields Array of fields.
	 */
	public function validate_settings_fields( $form_fields = array() ) {
		kkart_deprecated_function( 'validate_settings_fields', '2.6' );
	}

/**
	 * Format settings if needed.
	 *
	 * @deprecated 2.6.0 Unused.
	 * @param  array $value Value to format.
	 * @return array
	 */
	public function format_settings( $value ) {
		kkart_deprecated_function( 'format_settings', '2.6' );
		return $value;
	}
}

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	0/0	0755	2026-04-23 12:24:33
..	dir	-	0/0	0755	2026-04-23 12:24:34
abstract-kkart-data.php	text/x-php	19.78 KB	0/0	0644	2026-04-22 02:17:42
abstract-kkart-deprecated-hooks.php	text/x-php	3.12 KB	0/0	0644	2026-04-22 02:17:42
abstract-kkart-integration.php	text/x-php	1.83 KB	0/0	0644	2026-04-22 02:17:42
abstract-kkart-log-handler.php	text/x-php	1.38 KB	0/0	0644	2026-04-22 02:17:42
abstract-kkart-object-query.php	text/x-php	1.93 KB	0/0	0644	2026-04-22 02:17:42
abstract-kkart-order.php	text/x-php	64.88 KB	0/0	0644	2026-04-22 02:17:42
abstract-kkart-payment-gateway.php	text/x-php	13.76 KB	0/0	0644	2026-04-22 02:17:42
abstract-kkart-payment-token.php	text/x-php	5.67 KB	0/0	0644	2026-04-22 02:17:42
abstract-kkart-privacy.php	text/x-php	3.84 KB	0/0	0644	2026-04-22 02:17:42
abstract-kkart-product.php	text/x-php	55.14 KB	0/0	0644	2026-04-22 02:17:42
abstract-kkart-session.php	text/x-php	2.3 KB	0/0	0644	2026-04-22 02:17:42
abstract-kkart-settings-api.php	text/x-php	28.76 KB	0/0	0644	2026-04-22 02:17:42
abstract-kkart-shipping-method.php	text/x-php	15.78 KB	0/0	0644	2026-04-22 02:17:42
abstract-kkart-widget.php	text/x-php	12.12 KB	0/0	0644	2026-04-22 02:17:42
class-kkart-background-process.php	text/x-php	4.87 KB	0/0	0644	2026-04-22 02:17:42

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