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Added detection of visits from potential bots

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This commit is contained in:
Alejandro Celaya
2021-05-22 15:09:14 +02:00
parent 663ae9f6bb
commit 9fa32b5b6b
16 changed files with 123 additions and 19 deletions
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21
module/Core/src/Model/Visitor.php
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@@ -8,6 +8,7 @@ use Psr\Http\Message\ServerRequestInterface;
use Shlinkio\Shlink\Common\Middleware\IpAddressMiddlewareFactory;
use Shlinkio\Shlink\Core\Options\TrackingOptions;
use function Shlinkio\Shlink\Core\isCrawler;
use function substr;
final class Visitor
@@ -21,6 +22,7 @@ final class Visitor
private string $referer;
private string $visitedUrl;
private ?string $remoteAddress;
private bool $potentialBot;
public function __construct(string $userAgent, string $referer, ?string $remoteAddress, string $visitedUrl)
{
@@ -28,6 +30,7 @@ final class Visitor
$this->referer = $this->cropToLength($referer, self::REFERER_MAX_LENGTH);
$this->visitedUrl = $this->cropToLength($visitedUrl, self::VISITED_URL_MAX_LENGTH);
$this->remoteAddress = $this->cropToLength($remoteAddress, self::REMOTE_ADDRESS_MAX_LENGTH);
$this->potentialBot = isCrawler($userAgent);
}
private function cropToLength(?string $value, int $length): ?string
@@ -70,14 +73,22 @@ final class Visitor
return $this->visitedUrl;
}
public function isPotentialBot(): bool
{
return $this->potentialBot;
}
public function normalizeForTrackingOptions(TrackingOptions $options): self
{
$instance = self::emptyInstance();
$instance = new self(
$options->disableUaTracking() ? '' : $this->userAgent,
$options->disableReferrerTracking() ? '' : $this->referer,
$options->disableIpTracking() ? null : $this->remoteAddress,
$this->visitedUrl,
);
$instance->userAgent = $options->disableUaTracking() ? '' : $this->userAgent;
$instance->referer = $options->disableReferrerTracking() ? '' : $this->referer;
$instance->remoteAddress = $options->disableIpTracking() ? null : $this->remoteAddress;
$instance->visitedUrl = $this->visitedUrl;
// Keep the fact that the visit was a potential bot, even if we no longer save the user agent
$instance->potentialBot = $this->potentialBot;
return $instance;
}