Replace direct curl uses with Guzzle HTTP client

- Add http dependency with custom User Agent
- Simplify profile poll to remove the second profile call to check availability
- Remove obsolete Network::fetchURL and Network::testURL

src/classes/Pollers/Directory.php

@@ -10,9 +10,9 @@ use Friendica\Directory\Utils\Network;
 class Directory
 {
 	/**
-	 * @var \Atlas\Pdo\Connection
+	 * @var \GuzzleHttp\ClientInterface
 	 */
-	private $atlas;
+	private $http;
 	/**
 	 * @var \Friendica\Directory\Models\ProfilePollQueue
 	 */
@@ -30,12 +30,12 @@ class Directory
 	];
 
 	public function __construct(
-		\Atlas\Pdo\Connection $atlas,
+		\GuzzleHttp\ClientInterface $http,
 		\Friendica\Directory\Models\ProfilePollQueue $profilePollQueueModel,
 		\Psr\Log\LoggerInterface $logger,
 		array $settings)
 	{
-		$this->atlas = $atlas;
+		$this->http = $http;
 		$this->profilePollQueueModel = $profilePollQueueModel;
 		$this->logger = $logger;
 		$this->settings = array_merge($this->settings, $settings);
@@ -82,35 +82,7 @@ class Directory
 			$path = '/sync/pull/since/' . $last_polled;
 		}
 
-		//Prepare the CURL call.
+		$pull_data = $this->http->get($directory_url . $path, ['timeout' => max($this->settings['probe_timeout'], 1)])->getBody()->getContents();
-		$handle = curl_init();
-		$options = array(
-			//Timeouts
-			CURLOPT_TIMEOUT => max($this->settings['probe_timeout'], 1), //Minimum of 1 second timeout.
-			CURLOPT_CONNECTTIMEOUT => 1,
-			//Redirecting
-			CURLOPT_FOLLOWLOCATION => true,
-			CURLOPT_MAXREDIRS => 8,
-			//SSL
-			CURLOPT_SSL_VERIFYPEER => true,
-			// CURLOPT_VERBOSE => true,
-			// CURLOPT_CERTINFO => true,
-			CURLOPT_SSL_VERIFYHOST => 2,
-			CURLOPT_PROTOCOLS => CURLPROTO_HTTP | CURLPROTO_HTTPS,
-			//Basic request
-			CURLOPT_USERAGENT => Network::USER_AGENT,
-			CURLOPT_RETURNTRANSFER => true,
-			CURLOPT_URL => $directory_url . $path
-		);
-		curl_setopt_array($handle, $options);
-
-		$this->logger->info('Pulling profiles from directory URL: ' . $directory_url . $path);
-
-		//Probe the site.
-		$pull_data = curl_exec($handle);
-
-		//Done with CURL now.
-		curl_close($handle);
 
 		$data = json_decode($pull_data, true);
 

src/classes/Pollers/Profile.php

@@ -18,6 +18,11 @@ class Profile
 	 */
 	private $atlas;
 
+	/**
+	 * @var \GuzzleHttp\ClientInterface
+	 */
+	private $http;
+
 	/**
 	 * @var \Friendica\Directory\Models\Server
 	 */
@@ -43,6 +48,7 @@ class Profile
 
 	public function __construct(
 		\Atlas\Pdo\Connection $atlas,
+		\GuzzleHttp\ClientInterface $http,
 		\Friendica\Directory\Models\Server $serverModel,
 		\Friendica\Directory\Models\Profile $profileModel,
 		\Psr\Log\LoggerInterface $logger,
@@ -50,6 +56,7 @@ class Profile
 	)
 	{
 		$this->atlas = $atlas;
+		$this->http = $http;
 		$this->serverModel = $serverModel;
 		$this->profileModel = $profileModel;
 		$this->logger = $logger;
@@ -122,25 +129,23 @@ class Profile
 			);
 		}
 
-		//Skip the profile scrape?
+		$available = false;
-		$noscrape = $server['noscrape_url'];
 
 		$params = [];
-		if ($noscrape) {
+
+		//Skip the profile scrape?
+		if ($server['noscrape_url']) {
 			$this->logger->debug('Calling ' . $server['noscrape_url'] . '/' . $username);
-			$params = \Friendica\Directory\Utils\Scrape::retrieveNoScrapeData($server['noscrape_url'] . '/' . $username);
+			$params = \Friendica\Directory\Utils\Scrape::retrieveNoScrapeData($this->http, $server['noscrape_url'] . '/' . $username);
-			$noscrape = !!$params; //If the result was false, do a scrape after all.
+			$available = !!$params; //If the result was false, do a scrape after all.
 		}
 
-		$available = true;
+		if (!$available) {
-
-		if ($noscrape) {
-			$available = Network::testURL($profile_uri);
-			$this->logger->debug('Testing ' . $profile_uri . ': ' . ($available?'Success':'Failure'));
-		} else {
 			$this->logger->notice('Parsing profile page ' . $profile_uri);
-			$params = \Friendica\Directory\Utils\Scrape::retrieveProfileData($profile_uri);
+			$params = \Friendica\Directory\Utils\Scrape::retrieveProfileData($this->http, $profile_uri);
 			$params['language'] = $server['language'];
+
+			$available = !empty($params['fn']);
 		}
 
 		// Empty result is due to an offline site.
@@ -301,7 +306,7 @@ class Profile
 		$status = false;
 
 		if ($profile_id) {
-			$img_str = \Friendica\Directory\Utils\Network::fetchURL($params['photo'], true);
+			$img_str = $this->http->get($params['photo'])->getBody()->getContents();
 			$img = new \Friendica\Directory\Utils\Photo($img_str);
 			if ($img->getImage()) {
 				$img->scaleImageSquare(80);

src/classes/Pollers/Server.php

@@ -3,7 +3,8 @@
 namespace Friendica\Directory\Pollers;
 
 use ByJG\Util\WebRequest;
-use Friendica\Directory\Utils\Network;
+use GuzzleHttp\Exception\RequestException;
+use GuzzleHttp\TransferStats;
 
 /**
  * @author Hypolite Petovan <hypolite@mrpetovan.com>
@@ -14,6 +15,10 @@ class Server
 	 * @var \Atlas\Pdo\Connection
 	 */
 	private $atlas;
+	/**
+	 * @var \GuzzleHttp\ClientInterface
+	 */
+	private $http;
 	/**
 	 * @var \Friendica\Directory\Models\ProfilePollQueue
 	 */
@@ -41,6 +46,7 @@ class Server
 
 	public function __construct(
 		\Atlas\Pdo\Connection $atlas,
+		\GuzzleHttp\ClientInterface $http,
 		\Friendica\Directory\Models\ProfilePollQueue $profilePollQueueModel,
 		\Friendica\Directory\Models\Server $serverModel,
 		\Psr\SimpleCache\CacheInterface $simplecache,
@@ -48,6 +54,7 @@ class Server
 		array $settings)
 	{
 		$this->atlas = $atlas;
+		$this->http = $http;
 		$this->profilePollQueueModel = $profilePollQueueModel;
 		$this->serverModel = $serverModel;
 		$this->simplecache = $simplecache;
@@ -247,65 +254,41 @@ class Server
 
 	private function getProbeResult(string $base_url): array
 	{
-		//Prepare the CURL call.
+		$curl_info = null;
-		$handle = curl_init();
-		$options = array(
-			//Timeouts
-			CURLOPT_TIMEOUT => max($this->settings['probe_timeout'], 1), //Minimum of 1 second timeout.
-			CURLOPT_CONNECTTIMEOUT => 1,
-			//Redirecting
-			CURLOPT_FOLLOWLOCATION => true,
-			CURLOPT_MAXREDIRS => 8,
-			//SSL
-			CURLOPT_SSL_VERIFYPEER => true,
-			// CURLOPT_VERBOSE => true,
-			// CURLOPT_CERTINFO => true,
-			CURLOPT_SSL_VERIFYHOST => 2,
-			CURLOPT_PROTOCOLS => CURLPROTO_HTTP | CURLPROTO_HTTPS,
-			//Basic request
-			CURLOPT_USERAGENT => Network::USER_AGENT,
-			CURLOPT_RETURNTRANSFER => true,
-			CURLOPT_URL => $base_url . '/friendica/json'
-		);
-		curl_setopt_array($handle, $options);
 
+		$options = [
+			'timeout' => max($this->settings['probe_timeout'], 1),
+			'on_stats' => function (TransferStats $transferStats) use (&$curl_info) {
+				$curl_info = $transferStats->getHandlerStats();
+			}
+		];
+
+		$sslcert_issues = false;
+
+		try {
 			//Probe the site.
 			$probe_start = microtime(true);
-		$probe_data = curl_exec($handle);
+			$probe_data = $this->http->get($base_url . '/friendica/json', $options)->getBody()->getContents();
 			$probe_end = microtime(true);
-
+		} catch (RequestException $e) {
-		//Check for SSL problems.
+			if (!in_array($e->getHandlerContext()['errno'], [
-		$curl_statuscode = curl_errno($handle);
-		$sslcert_issues = in_array($curl_statuscode, array(
 				60, //Could not authenticate certificate with known CA's
 				83  //Issuer check failed
-		));
+			])) {
-
+				throw $e;
-		//When it's the certificate that doesn't work.
-		if ($sslcert_issues) {
-			//Probe again, without strict SSL.
-			$options[CURLOPT_SSL_VERIFYPEER] = false;
-
-			//Replace the handle.
-			curl_close($handle);
-			$handle = curl_init();
-			curl_setopt_array($handle, $options);
-
-			//Probe.
-			$probe_start = microtime(true);
-			$probe_data = curl_exec($handle);
-			$probe_end = microtime(true);
-
-			//Store new status.
-			$curl_statuscode = curl_errno($handle);
 			}
 
-		//Gather more meta.
+			$sslcert_issues = true;
-		$time = round(($probe_end - $probe_start) * 1000);
-		$curl_info = curl_getinfo($handle);
 
-		//Done with CURL now.
+			//When it's the certificate that doesn't work, we probe again without strict SSL.
-		curl_close($handle);
+			$options['verify'] = false;
+
+			$probe_start = microtime(true);
+			$probe_data = $this->http->get($base_url . '/friendica/json', $options)->getBody()->getContents();
+			$probe_end = microtime(true);
+		}
+
+		$time = round(($probe_end - $probe_start) * 1000);
 
 		try {
 			$data = json_decode($probe_data, true);

src/classes/Utils/Network.php

@@ -15,56 +15,6 @@ namespace Friendica\Directory\Utils;
  */
 class Network
 {
-	const USER_AGENT = 'friendica-directory-probe-1.0';
-
-	public static function fetchURL(string $url, bool $binary = false, int $timeout = 20): string
-	{
-		$ch = curl_init($url);
-		if (!$ch) {
-			return false;
-		}
-
-		curl_setopt($ch, CURLOPT_HEADER, 0);
-		curl_setopt($ch, CURLOPT_TIMEOUT, max($timeout, 1)); //Minimum of 1 second timeout.
-		curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
-		curl_setopt($ch, CURLOPT_MAXREDIRS, 8);
-		curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
-		curl_setopt($ch, CURLOPT_USERAGENT, self::USER_AGENT);
-		if ($binary) {
-			curl_setopt($ch, CURLOPT_BINARYTRANSFER, 1);
-		}
-		curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
-		$s = curl_exec($ch);
-		curl_close($ch);
-		return $s;
-	}
-
-	public static function testURL(string $url, int $timeout = 20): bool
-	{
-		$ch = curl_init($url);
-		if (!$ch) {
-			return false;
-		}
-
-		curl_setopt($ch, CURLOPT_HEADER        , 0);
-		curl_setopt($ch, CURLOPT_TIMEOUT       , max($timeout, 1)); //Minimum of 1 second timeout.
-		curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
-		curl_setopt($ch, CURLOPT_MAXREDIRS     , 8);
-		curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);
-		curl_setopt($ch, CURLOPT_NOBODY        , true);
-		curl_setopt($ch, CURLOPT_USERAGENT     , self::USER_AGENT);
-
-		curl_exec($ch);
-
-		$responseCode = intval(curl_getinfo($ch, CURLINFO_RESPONSE_CODE));
-
-		$testSuccess = curl_errno($ch) === 0 && $responseCode < 400;
-
-		curl_close($ch);
-
-		return $testSuccess;
-	}
-
 	/**
 	 * Check if a hostname is public and non-reserved
 	 *

src/classes/Utils/Scrape.php

@@ -2,6 +2,8 @@
 
 namespace Friendica\Directory\Utils;
 
+use GuzzleHttp\ClientInterface;
+
 /**
  * @author Hypolite Petovan <hypolite@mrpetovan.com>
  */
@@ -12,10 +14,10 @@ class Scrape
 	 * @param string $url
 	 * @return array|false
 	 */
-	public static function retrieveNoScrapeData(string $url)
+	public static function retrieveNoScrapeData(ClientInterface $http, string $url)
 	{
 		$submit_noscrape_start = microtime(true);
-		$data = Network::fetchURL($url);
+		$data = $http->get($url)->getBody()->getContents();
 		$submit_noscrape_request_end = microtime(true);
 
 		if (empty($data)) {
@@ -42,7 +44,7 @@ class Scrape
 		return $params;
 	}
 
-	public static function retrieveProfileData(string $url, int $max_nodes = 3500): array
+	public static function retrieveProfileData(ClientInterface $http, string $url, int $max_nodes = 3500): array
 	{
 
 		$minNodes = 100; //Lets do at least 100 nodes per type.
@@ -56,7 +58,7 @@ class Scrape
 		$scrape_start = microtime(true);
 
 		$params = [];
-		$html = Network::fetchURL($url, false, $timeout);
+		$html = $http->get($url, ['timeout' => $timeout])->getBody()->getContents();;
 
 		$scrape_fetch_end = microtime(true);
 

src/dependencies.php

@@ -89,6 +89,16 @@ $container['migration'] = function (ContainerInterface $c): ByJG\DbMigration\Mig
 	return $migration;
 };
 
+$container['http'] = function (ContainerInterface $c): GuzzleHttp\ClientInterface {
+	$version = file_get_contents(__DIR__ . '/../VERSION');
+
+	if (!$version || !preg_match('/^\s*\d\.\d\.\d\s*$/', $version)) {
+		$version = '0.0.0';
+	}
+
+	return new GuzzleHttp\Client(['timeout' => 20, 'headers' => ['User-Agent' => 'FriendicaDirectory/' . trim($version) . ' ' . \GuzzleHttp\default_user_agent()]]);
+};
+
 // Internal Dependency Injection
 
 $container[\Friendica\Directory\Models\Profile::class] = function (ContainerInterface $c): Friendica\Directory\Models\Profile {
@@ -106,7 +116,7 @@ $container[\Friendica\Directory\Models\Server::class] = function (ContainerInter
 $container[\Friendica\Directory\Pollers\Directory::class] = function (ContainerInterface $c): Friendica\Directory\Pollers\Directory {
 	$settings = $c->get('settings')['poller'];
 	return new Friendica\Directory\Pollers\Directory(
-		$c->get('atlas'),
+		$c->get('http'),
 		$c->get(\Friendica\Directory\Models\ProfilePollQueue::class),
 		$c->get('logger'),
 		$settings ?: []
@@ -117,6 +127,7 @@ $container[\Friendica\Directory\Pollers\Profile::class] = function (ContainerInt
 	$settings = $c->get('settings')['poller'];
 	return new Friendica\Directory\Pollers\Profile(
 		$c->get('atlas'),
+		$c->get('http'),
 		$c->get(\Friendica\Directory\Models\Server::class),
 		$c->get(\Friendica\Directory\Models\Profile::class),
 		$c->get('logger'),
@@ -128,6 +139,7 @@ $container[\Friendica\Directory\Pollers\Server::class] = function (ContainerInte
 	$settings = $c->get('settings')['poller'];
 	return new Friendica\Directory\Pollers\Server(
 		$c->get('atlas'),
+		$c->get('http'),
 		$c->get(\Friendica\Directory\Models\ProfilePollQueue::class),
 		$c->get(\Friendica\Directory\Models\Server::class),
 		$c->get('simplecache'),