snapshot of https://github.com/espocrm/espocrm.git (master, 2026-09-18; blobs > 131072B omitted)

application/Espo/Core/HttpClient/Client.php

@@ -0,0 +1,185 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2026 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Core\HttpClient;
+
+use Espo\Core\HttpClient\Exceptions\ConnectException;
+use Espo\Core\HttpClient\Exceptions\NotAllowedInternalHost;
+use Espo\Core\HttpClient\Exceptions\TooManyRedirectsException;
+use Espo\Core\Utils\Security\UrlCheck;
+use GuzzleHttp;
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+use RuntimeException;
+
+class Client
+{
+    private const int MAX_REDIRECT_NUMBER = 5;
+
+    /**
+     * To be instantiated with the ClientFactory.
+     *
+     * @internal
+     */
+    public function __construct(
+        private Options $options,
+        private UrlCheck $urlCheck,
+    ) {}
+
+    /**
+     * Send a request. Does not throw exceptions on error responses.
+     *
+     * @throws TooManyRedirectsException
+     * @throws ConnectException
+     */
+    public function send(RequestInterface $request): ResponseInterface
+    {
+        $client = $this->prepareGuzzleClient();
+
+        try {
+            return $client->send($request);
+        } catch (GuzzleHttp\Exception\ConnectException $e) {
+            Util::handleConnectException($e);
+        } catch (GuzzleHttp\Exception\TooManyRedirectsException $e) {
+            throw new TooManyRedirectsException(previous: $e);
+        } catch (GuzzleHttp\Exception\GuzzleException $e) {
+            throw new RuntimeException(previous: $e);
+        }
+    }
+
+    /**
+     * Send a request in async.
+     */
+    public function sendAsync(RequestInterface $request): Promise
+    {
+        $client = $this->prepareGuzzleClient();
+
+        $promise = $client->sendAsync($request);
+
+        return new Promise($promise);
+    }
+
+    /**
+     * @param string[] $allowed
+     * @throws NotAllowedInternalHost
+     */
+    private function checkUrl(string $url, array $allowed): void
+    {
+        if (
+            !Util::matchUrlToAddressList($url, $allowed) &&
+            !$this->urlCheck->isUrlAndNotInternal($url)
+        ) {
+            throw new NotAllowedInternalHost("Not allowed internal host in '$url'.");
+        }
+    }
+
+    /**
+     * @return array<string, mixed>
+     */
+    private function prepareOptions(): array
+    {
+        $options = [
+            'protocols' => array_map(
+                fn (Protocol $protocol) => $protocol->value,
+                $this->options->protocols
+            ),
+            'allow_redirects' => false,
+            'http_errors' => false,
+        ];
+
+        if ($this->options->redirect->allow) {
+            $options['allow_redirects'] = [
+                'max' => $this->options->redirect->maxNumber ?? self::MAX_REDIRECT_NUMBER,
+                'strict' => $this->options->redirect->strict,
+                'protocols' => array_map(
+                    fn (Protocol $protocol) => $protocol->value,
+                    $this->options->redirect->protocols
+                ),
+            ];
+        }
+
+        if ($this->options->timeout !== null) {
+            $options['timeout'] = $this->options->timeout;
+        }
+
+        if ($this->options->connectTimeout !== null) {
+            $options['connect_timeout'] = $this->options->connectTimeout;
+        }
+
+        $stack = GuzzleHttp\HandlerStack::create(new GuzzleHttp\Handler\CurlHandler());
+
+        if ($this->options->internalHostRestriction->restrict) {
+            $stack->push(
+                GuzzleHttp\Middleware::mapRequest(function (RequestInterface $request) {
+                    $url = (string) $request->getUri();
+
+                    $this->checkUrl($url, $this->options->internalHostRestriction->allowed);
+
+                    return $request;
+                })
+            );
+
+            $stack->push(function (callable $handler) {
+                return function (RequestInterface $request, array $options) use ($handler) {
+                    $url = (string) $request->getUri();
+
+                    $resolve = $this->urlCheck->getCurlResolve($url);
+
+                    if ($resolve === []) {
+                        throw new NotAllowedInternalHost("Could not resolve host for '$url'.");
+                    }
+
+                    $allowed = $this->options->internalHostRestriction->allowed;
+
+                    if ($resolve !== null && !$this->urlCheck->validateCurlResolveNotInternal($resolve, $allowed)) {
+                        throw new NotAllowedInternalHost("Not allowed internal host in '$url'.");
+                    }
+
+                    if ($resolve) {
+                        $options['curl'] ??= [];
+                        $options['curl'][CURLOPT_RESOLVE] = $resolve;
+                    }
+
+                    return $handler($request, $options);
+                };
+            });
+        }
+
+        $options['handler'] = $stack;
+
+        return $options;
+    }
+
+    private function prepareGuzzleClient(): GuzzleHttp\Client
+    {
+        $options = $this->prepareOptions();
+
+        return new GuzzleHttp\Client($options);
+    }
+}

application/Espo/Core/HttpClient/ClientFactory.php

@@ -0,0 +1,54 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2026 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Core\HttpClient;
+
+use Espo\Core\Binding\BindingContainerBuilder;
+use Espo\Core\InjectableFactory;
+
+/**
+ * An HTTP client factory.
+ *
+ * @since 10.0.0
+ */
+class ClientFactory
+{
+    public function __construct(
+        private InjectableFactory $injectableFactory,
+    ) {}
+
+    public function create(Options $options): Client
+    {
+        $binding = BindingContainerBuilder::create()
+            ->bindInstance(Options::class, $options)
+            ->build();
+
+        return $this->injectableFactory->createWithBinding(Client::class, $binding);
+    }
+}

application/Espo/Core/HttpClient/ConnectErrorReason.php

@@ -0,0 +1,35 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2026 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Core\HttpClient;
+
+enum ConnectErrorReason
+{
+    case Timeout;
+}

application/Espo/Core/HttpClient/Exceptions/ConnectException.php

@@ -0,0 +1,54 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2026 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Core\HttpClient\Exceptions;
+
+use Espo\Core\HttpClient\ConnectErrorReason;
+use Exception;
+
+final class ConnectException extends SendException
+{
+    private ?ConnectErrorReason $reason = null;
+
+    /**
+     * @internal
+     */
+    public static function create(?Exception $previous, ?ConnectErrorReason $reason): ConnectException
+    {
+        $exception = new ConnectException(previous: $previous);
+        $exception->reason = $reason;
+
+        return $exception;
+    }
+
+    public function getReason(): ?ConnectErrorReason
+    {
+        return $this->reason;
+    }
+}

application/Espo/Core/HttpClient/Exceptions/NotAllowedInternalHost.php

@@ -0,0 +1,34 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2026 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Core\HttpClient\Exceptions;
+
+class NotAllowedInternalHost extends SendException
+{
+}

application/Espo/Core/HttpClient/Exceptions/SendException.php

@@ -0,0 +1,35 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2026 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Core\HttpClient\Exceptions;
+
+use Exception;
+
+abstract class SendException extends Exception
+{}

application/Espo/Core/HttpClient/Exceptions/TooManyRedirectsException.php

@@ -0,0 +1,33 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2026 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Core\HttpClient\Exceptions;
+
+class TooManyRedirectsException extends SendException
+{}

application/Espo/Core/HttpClient/Options.php

@@ -0,0 +1,50 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2026 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Core\HttpClient;
+
+use Espo\Core\HttpClient\Options\InternalHostRestriction;
+use Espo\Core\HttpClient\Options\Redirect;
+
+readonly class Options
+{
+    /**
+     * @todo SSL options.
+     * Use named parameters when calling.
+     *
+     * @param Protocol[] $protocols
+     */
+    public function __construct(
+        public array $protocols = [Protocol::https, Protocol::http],
+        public Redirect $redirect = new Redirect(),
+        public ?int $timeout = null,
+        public ?int $connectTimeout = null,
+        public InternalHostRestriction $internalHostRestriction = new InternalHostRestriction(),
+    ) {}
+}

application/Espo/Core/HttpClient/Options/InternalHostRestriction.php

@@ -0,0 +1,41 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2026 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Core\HttpClient\Options;
+
+class InternalHostRestriction
+{
+    /**
+     * @param string[] $allowed A list of `host:port`.
+     */
+    public function __construct(
+        public bool $restrict = false,
+        public array $allowed = [],
+    ) {}
+}

application/Espo/Core/HttpClient/Options/Redirect.php

@@ -0,0 +1,47 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2026 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Core\HttpClient\Options;
+
+use Espo\Core\HttpClient\Protocol;
+
+readonly class Redirect
+{
+    /**
+     * Use named parameters when calling.
+     *
+     * @param Protocol[] $protocols
+     */
+    public function __construct(
+        public bool $allow = false,
+        public array $protocols = [Protocol::https],
+        public ?int $maxNumber = null,
+        public bool $strict = false,
+    ) {}
+}

application/Espo/Core/HttpClient/Promise.php

@@ -0,0 +1,83 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2026 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Core\HttpClient;
+
+use Closure;
+use Espo\Core\HttpClient\Exceptions\ConnectException;
+use Espo\Core\HttpClient\Exceptions\TooManyRedirectsException;
+use GuzzleHttp\Promise\PromiseInterface;
+use GuzzleHttp;
+use Psr\Http\Message\ResponseInterface;
+use RuntimeException;
+use UnexpectedValueException;
+
+class Promise
+{
+    /**
+     * @internal
+     */
+    public function __construct(
+        private PromiseInterface $promise,
+    ) {}
+
+    /**
+     * @throws TooManyRedirectsException
+     * @throws ConnectException
+     * @internal
+     */
+    public function wait(): ResponseInterface
+    {
+        $value = $this->requestCallback(fn () => $this->promise->wait());
+
+        if (!$value instanceof ResponseInterface) {
+            throw new UnexpectedValueException();
+        }
+
+        return $value;
+    }
+
+    /**
+     * @throws TooManyRedirectsException
+     * @throws ConnectException
+     * @noinspection PhpRedundantCatchClauseInspection
+     */
+    private function requestCallback(Closure $closure): mixed
+    {
+        try {
+            return $closure();
+        } catch (GuzzleHttp\Exception\ConnectException $e) {
+            Util::handleConnectException($e);
+        } catch (GuzzleHttp\Exception\TooManyRedirectsException $e) {
+            throw new TooManyRedirectsException(previous: $e);
+        } catch (GuzzleHttp\Exception\GuzzleException $e) {
+            throw new RuntimeException(previous: $e);
+        }
+    }
+}

application/Espo/Core/HttpClient/PromiseUtil.php

@@ -0,0 +1,52 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2026 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Core\HttpClient;
+
+use Espo\Core\HttpClient\Exceptions\ConnectException;
+use Espo\Core\HttpClient\Exceptions\TooManyRedirectsException;
+use Psr\Http\Message\ResponseInterface;
+
+/**
+ * @since 10.0.0
+ * @noinspection PhpUnused
+ */
+class PromiseUtil
+{
+    /**
+     * @param array<int|string, Promise> $promises
+     * @return array<int|string, ResponseInterface>
+     * @throws ConnectException
+     * @throws TooManyRedirectsException
+     */
+    public static function unwrap(array $promises): array
+    {
+        return array_map(fn ($promise) => $promise->wait(), $promises);
+    }
+}

application/Espo/Core/HttpClient/Protocol.php

@@ -0,0 +1,36 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2026 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Core\HttpClient;
+
+enum Protocol: string
+{
+    case http = 'http';
+    case https = 'https';
+}

application/Espo/Core/HttpClient/RequestCreator.php

@@ -0,0 +1,46 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2026 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Core\HttpClient;
+
+use GuzzleHttp\Psr7\Request;
+use Psr\Http\Message\RequestInterface;
+
+class RequestCreator
+{
+    /**
+     * Create a request.
+     *
+     * @since 10.0.0
+     */
+    public static function create(string $method, string $url): RequestInterface
+    {
+        return new Request($method, $url);
+    }
+}

application/Espo/Core/HttpClient/Util.php

@@ -0,0 +1,99 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2026 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Core\HttpClient;
+
+use Espo\Core\HttpClient\Exceptions\ConnectException;
+use GuzzleHttp\Psr7\Utils;
+use GuzzleHttp;
+use Psr\Http\Message\StreamInterface;
+
+class Util
+{
+    /**
+     * @param resource|string|int|float|bool|StreamInterface $resource
+     * @since 10.0.0
+     */
+    public static function streamFor($resource): StreamInterface
+    {
+        return Utils::streamFor($resource);
+    }
+
+    /**
+     * @internal
+     * @param string[] $addressList
+     */
+    public static function matchUrlToAddressList(string $url, array $addressList): bool
+    {
+        if (!$addressList) {
+            return false;
+        }
+
+        $host = parse_url($url, PHP_URL_HOST);
+        $port = parse_url($url, PHP_URL_PORT);
+        $scheme = parse_url($url, PHP_URL_SCHEME);
+
+        if (!is_string($host)) {
+            return false;
+        }
+
+        if (!is_int($port)) {
+            if ($scheme === 'https') {
+                $port = 443;
+            } else if ($scheme === 'http') {
+                $port = 80;
+            }
+        }
+
+        if (!is_int($port)) {
+            return false;
+        }
+
+        $address = $host . ':' . $port;
+
+        return in_array($address, $addressList);
+    }
+
+    /**
+     * @internal
+     * @throws ConnectException
+     */
+    public static function handleConnectException(GuzzleHttp\Exception\ConnectException $exception): never
+    {
+        $context = $exception->getHandlerContext();
+
+        $reason = null;
+
+        if (($context['errno'] ?? 0) === CURLE_OPERATION_TIMEDOUT) {
+            $reason = ConnectErrorReason::Timeout;
+        }
+
+        throw ConnectException::create(previous: $exception, reason: $reason);
+    }
+}