<?php


function oc_sp_post_values() {
	$post = $_POST;

	$default_arr = array(
		'email'   => '',
		'author'  => '',
		'comment' => '',
		'subject' => '',
		'url'     => '',
	);
	if ( empty( $post ) || ! is_array( $post ) ) {
		return $default_arr;
	}

	// removed _id from the list for resolving the conflict with woocommere add_to_cart action
	// address removed from list under email to resolve conflict with woocommerce address field
	$dict = array(
		'email'   => array( 'user_email', 'email' ),
		'author'  => array(
			'author',
			'name',
			'user_login',
			'signup_for',
			'log',
			'user',
			'booking_name',
		),
		'comment' => array( 'comment', 'message', 'body', 'excerpt' ),
		'subject' => array( 'subj', 'topic' ),
		'url'     => array( 'url', 'blog_name', 'blogname' ),
	);

	$bypass_fields = array(
		'email_toUser',
		'gtm4wp_name',
		'hidden_field_names',
		'wc_order_attribution_user_agent',
		'et_pb_contact_email_fields_0'
	);

	foreach ( $dict as $dict_key => $subset ) {
		foreach ( $subset as $subset_val ) {
			foreach ( $post as $post_param => $post_value ) {
				if ( in_array( $post_param, $bypass_fields ) ) {
					return $default_arr;

				}

				if ( stripos( $post_param, $subset_val ) !== false ) {

					if ( is_array( $post_value ) ) {
						// Return default array if an array is found
						return $default_arr;
					}
					$default_arr[ $dict_key ] = $post_value;
					break;
				}
			}
			if ( ! empty( $default_arr[ $dict_key ] ) ) {
				break;
			}
		}
	}
	return $default_arr;
}

function oc_log_spam( $user_ip, $oc_post, $detected_spam ) {

	if ( '' == $detected_spam ) {
		return false;
	}

	$spam = oc_get_sp_options( 'onecom_sp_spam_logs' );

	if ( array_key_exists( 'spam_count', $spam ) ) {
		$spam['spam_count']++;
	} else {
		$spam['spam_count'] = 1;
	}

	if ( is_array( $oc_post ) ) {
		$user_email = isset( $oc_post['email'] ) ? $oc_post['email'] : '';
		$user_name  = isset( $oc_post['author'] ) ? $oc_post['author'] : '';
	}

	$url  = OnecomSp::oc_get_spam_url();
	$time = date( 'Y/m/d H:i:s', time() + ( get_option( 'gmt_offset' ) * 3600 ) );

	$spam['records'][ $time ] = array( $user_ip, $user_email, $user_name, $url, $detected_spam );

	oc_save_sp_options( $spam, 'onecom_sp_spam_logs' );
}


function oc_get_sp_options( $option_name ) {

	$sp_options = get_option( $option_name );

	if ( $sp_options && is_string( $sp_options ) && '' != $sp_options ) {

		$sp_options = json_decode( $sp_options, true );

		// condition added for handling corrupted json & restoring data
		if ( JSON_ERROR_NONE !== json_last_error() ) {

			onecom_sp_restore_data();

		}
	} else {
		$sp_options = array();

	}

	return $sp_options;
}

function oc_save_sp_options( $sp_options, $option_name ) {

	if ( is_array( $sp_options ) && ! empty( $sp_options ) ) {

		$sp_options = json_encode( $sp_options );
		update_option( $option_name, $sp_options, false );

	} else {
		return false;

	}
}


function oc_spam_protection_activate() {

	$sp_options = oc_get_sp_options( 'onecom_sp_protect_options' );
	if ( ! $sp_options || empty( $sp_options ) ) {
		$sp_options['checks']                = oc_set_default_options();
		$sp_options['sp_protection_version'] = ONECOM_SP_VERSION;
	}
	oc_save_sp_options( $sp_options, 'onecom_sp_protect_options' );
	$sp_options = oc_get_sp_options( 'onecom_sp_protect_options' );

	if ( ! isset( $sp_options['url-shortners'] ) ) {
		$sp_options['url-shortners'] = OnecomSp::oc_get_values_from_api( MIDDLEWARE_URL . OnecomSp::SPAM_URL_SHORTNERS );

	} elseif ( isset( $sp_options['url-shortners'] ) && $sp_options['sp_protection_version'] != ONECOM_SP_VERSION ) {

		$sp_options['url-shortners'] = OnecomSp::oc_get_values_from_api( MIDDLEWARE_URL . OnecomSp::SPAM_URL_SHORTNERS, $sp_options['url-shortners'] );

	}

	if ( ! isset( $sp_options['exploit-urls'] ) ) {
		$sp_options['exploit-urls'] = OnecomSp::oc_get_values_from_api( MIDDLEWARE_URL . OnecomSp::SPAM_EXPLOIT_URLS );

	} elseif ( isset( $sp_options['exploit-urls'] ) && ONECOM_SP_VERSION != $sp_options['sp_protection_version'] ) {

		$sp_options['exploit-urls'] = OnecomSp::oc_get_values_from_api( MIDDLEWARE_URL . OnecomSp::SPAM_EXPLOIT_URLS, $sp_options['exploit-urls'] );

	}

	$sp_options['sp_protection_version'] = ONECOM_SP_VERSION;
	oc_save_sp_options( $sp_options, 'onecom_sp_protect_options' );
}

function oc_set_default_options() {
	$sp_options = OnecomSp::sp_protect_options();
	$default    = array();

	foreach ( $sp_options as $option ) {
		$default[ $option ] = 'true';

	}
	$default['oc_max_login_val'] = 5;
	$default['oc_block_time']    = 30;
	$default['oc_sp_proburl']    = 'true';
	$default['oc_sp_quickres']   = 'true';
	$default['oc_sp_urlshort']   = 'true';
	$default['oc_spbadusragent'] = 'false';
	$default['oc_spwhitelistip'] = 'false';

	return $default;
}

function onecomsp_is_premium() {
	$features = oc_set_premi_flag();
	if ( isset( $features['data'] ) && ( ! empty( $features['data'] ) ) && ( in_array( 'MWP_ADDON', $features['data'] ) ) ) {
		return true;
	}
}


/**
 * function for restoring  JSON data of spam protection settings from WP API
 */
function onecom_sp_restore_data() {
	$sp_options = array();

	$sp_options['checks'] = oc_set_default_options();

	$sp_options['sp_protection_version'] = ONECOM_SP_VERSION;

	$sp_options['url-shortners'] = OnecomSp::oc_get_values_from_api( MIDDLEWARE_URL . OnecomSp::SPAM_URL_SHORTNERS );

	$sp_options['exploit-urls'] = OnecomSp::oc_get_values_from_api( MIDDLEWARE_URL . OnecomSp::SPAM_EXPLOIT_URLS );

	oc_save_sp_options( $sp_options, 'onecom_sp_protect_options' );
}