StopForumSpam PHP API

Composer friendly PHP API library and response analyzer for StopForumSpam service.

Requirements

• PHP >= 8.1
• cURL extension

Installation

composer require resolventa/stopforumspam-php-api

Usage

See example.php and tests/UseCaseTest.php for usage examples.

<?php
use Resolventa\StopForumSpamApi\ResponseAnalyzer;
use Resolventa\StopForumSpamApi\ResponseAnalyzerSettings;
use Resolventa\StopForumSpamApi\StopForumSpamApi;
use Resolventa\StopForumSpamApi\Exception\StopForumSpamApiException;

include 'vendor/autoload.php';

$stopForumSpamApi = new StopForumSpamApi();

/**
 * Set up Email, IP and Username to be checked
 * You can use only one, two or all three together
 *
 * Use $stopForumSpamApi->checkIp('135.34.23.33'); if only IP address need to be checked
 */
$stopForumSpamApi
    ->checkEmail('[email protected]')
    ->checkIp('135.34.23.33')
    ->checkUsername('someGreatUsername');

/**
 * Get Response from StopForumSpam service
 */
$response = $stopForumSpamApi->getCheckResponse();

/**
 * You can analyze response on your own or use Resolventa\StopForumSpamApi\ResponseAnalyzer to make decision
 * See ResponseAnalyzer usage below
 */
var_dump($response);

/**
 * Create analyzer instance with $response and default analyser settings
 *
 * Or customize analyser settings to your needs
 * $settings = new ResponseAnalyzerSettings();
 * $settings->setMinSpamFlagsCount(2);
 * $settings->setMinFlagAppearanceFrequency(10);
 * $settings->setFlagLastSeenDaysAgo(14);
 * $settings->setConfidenceThreshold(70);
 */
$analyzer = new ResponseAnalyzer(new ResponseAnalyzerSettings());

try {
    if($analyzer->isSpammerDetected($response)) {
        echo "Spam user detected. \n";
    } else {
        echo "User is ok. \n";
    }
} catch (StopForumSpamApiException $e) {
    echo 'Bad response: ',  $e->getMessage(), "\n";
    exit();
}

Response analyzer

The library is included with an analyzer class to check StopForumSpam API response and decide if user is spammer or not.

Default analyzer settings

See StopForumSpam API documentation to understand given analyzer settings.

• $confidenceThreshold = 90 If response confidence equal or above $confidenceThreshold, user is detected as spammer.
• $minFlagAppearanceFrequency = 5 If flag (ip, email, username) appears in spam reports less than $minFlagAppearanceFrequency value, user is NOT detected as spammer.
• $flagLastSeenDaysAgo = 7 If flag (ip, email, username) was last time reported as spam more than $flagLastSeenDaysAgo days ago, user is NOT detected as spammer.
• $minSpamFlagsCount = 1 Minimum number of flags (ip, email, username) detected as spam to detect user as spammer.

Analyzer usage

// Create analyzer settings with default values
$settings = new ResponseAnalyzerSettings();

// Update any setting with your preferable value
$settings->setMinSpamFlagsCount(2);
$settings->setMinFlagAppearanceFrequency(10);
$settings->setFlagLastSeenDaysAgo(14);
$settings->setConfidenceThreshold(70);

// Start analyzer with given settings
$analyzer = new ResponseAnalyzer(new ResponseAnalyzerSettings());

// Validate response with the give analyzer settings
if($analyzer->isSpammerDetected($response)) {
    // Throw away that spam registration
}

Submit spam reports

To submit spam reports you need to get StopForumSpam API key. For usage example see test/SubmitReportTest.php

// Instantiate StopForumSpamApi with API key
$stopForumSpamApi = new StopForumSpamApi(self::API_KEY);

// Submit report
$result = $stopForumSpamApi->submitSpamReport(string $username, string $ip, string $email, string $evidence);