implementation for externalReferences

HISTORY.md

@@ -4,6 +4,11 @@ All notable changes to this project will be documented in this file.
 
 ## unreleased
 
+* Added
+  * Support for ExternalReferences in BOM and Component (via [#17])
+
+[#17]: https://github.com/CycloneDX/cyclonedx-php-library/pull/17
+
 ## 1.0.3 - 2021-11-15
 
 * Fixed

src/Core/Enums/ExternalReferenceType.php

@@ -0,0 +1,75 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * This file is part of CycloneDX PHP Library.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * Copyright (c) Steve Springett. All Rights Reserved.
+ */
+
+namespace CycloneDX\Core\Enums;
+
+/**
+ * See {@link https://cyclonedx.org/schema/bom/1.1 Schema 1.1} for `externalReferenceType`.
+ * See {@link https://cyclonedx.org/schema/bom/1.2 Schema 1.2} for `externalReferenceType`.
+ * See {@link https://cyclonedx.org/schema/bom/1.3 Schema 1.3} for `externalReferenceType`.
+ *
+ * @author jkowalleck
+ */
+abstract class ExternalReferenceType
+{
+    /** Version Control System */
+    public const VCS = 'vcs';
+    /** Issue or defect tracking system, or an Application Lifecycle Management (ALM) system */
+    public const ISSUE_TRACKER = 'issue-tracker';
+    /** Website */
+    public const WEBSITE = 'website';
+    /** Security advisories */
+    public const ADVISORIES = 'advisories';
+    /** Bill-of-material document (CycloneDX, SPDX, SWID, etc) */
+    public const BOM = 'bom';
+    /** Mailing list or discussion group */
+    public const MAILING_LIST = 'mailing-list';
+    /** Social media account */
+    public const SOCIAL = 'social';
+    /** Real-time chat platform */
+    public const CHAT = 'chat';
+    /** Documentation, guides, or how-to instructions */
+    public const DOCUMENTATION = 'documentation';
+    /** Community or commercial support */
+    public const SUPPORT = 'support';
+    /*** Direct or repository download location.*/
+    public const DISTRIBUTION = 'distribution';
+    /** The URL to the license file. If a license URL has been defined in the licensenode, it should also be defined as an external reference for completeness. */
+    public const LICENSE = 'license';
+    /** Build-system specific meta file (i.e. pom.xml, package.json, .nuspec, etc). */
+    public const BUILD_META = 'build-meta';
+    /** URL to an automated build system. */
+    public const BUILD_SYSTEM = 'build-system';
+    /** Use this if no other types accurately describe the purpose of the external reference. */
+    public const OTHER = 'other';
+
+    /**
+     * @psalm-assert-if-true self::* $value
+     */
+    public static function isValidValue(string $value): bool
+    {
+        $values = (new \ReflectionClass(self::class))->getConstants();
+
+        return \in_array($value, $values, true);
+    }
+}

src/Core/Models/Bom.php

@@ -24,6 +24,7 @@
 namespace CycloneDX\Core\Models;
 
 use CycloneDX\Core\Repositories\ComponentRepository;
+use CycloneDX\Core\Repositories\ExternalReferenceRepository;
 use DomainException;
 
 /**
@@ -56,6 +57,14 @@ class Bom
      */
     private $metaData;
 
+    /**
+     * Provides the ability to document external references related to the BOM or
+     * to the project the BOM describes.
+     *
+     * @var ExternalReferenceRepository|null
+     */
+    private $externalReferenceRepository;
+
     public function __construct(?ComponentRepository $componentRepository = null)
     {
         $this->setComponentRepository($componentRepository ?? new ComponentRepository());
@@ -124,4 +133,19 @@ public function setMetaData(?MetaData $metaData): self
 
         return $this;
     }
+
+    public function getExternalReferenceRepository(): ?ExternalReferenceRepository
+    {
+        return $this->externalReferenceRepository;
+    }
+
+    /**
+     * @return $this
+     */
+    public function setExternalReferenceRepository(?ExternalReferenceRepository $externalReferenceRepository): self
+    {
+        $this->externalReferenceRepository = $externalReferenceRepository;
+
+        return $this;
+    }
 }

src/Core/Models/Component.php

@@ -27,6 +27,7 @@
 use CycloneDX\Core\Models\License\LicenseExpression;
 use CycloneDX\Core\Repositories\BomRefRepository;
 use CycloneDX\Core\Repositories\DisjunctiveLicenseRepository;
+use CycloneDX\Core\Repositories\ExternalReferenceRepository;
 use CycloneDX\Core\Repositories\HashRepository;
 use DomainException;
 use PackageUrl\PackageUrl;
@@ -137,6 +138,14 @@ class Component
      */
     private $version;
 
+    /**
+     * Provides the ability to document external references related to the
+     * component or to the project the component describes.
+     *
+     * @var ExternalReferenceRepository|null
+     */
+    private $externalReferenceRepository;
+
     public function getBomRef(): BomRef
     {
         return $this->bomRef;
@@ -331,6 +340,21 @@ public function setDependenciesBomRefRepository(?BomRefRepository $dependenciesB
         return $this;
     }
 
+    public function getExternalReferenceRepository(): ?ExternalReferenceRepository
+    {
+        return $this->externalReferenceRepository;
+    }
+
+    /**
+     * @return $this
+     */
+    public function setExternalReferenceRepository(?ExternalReferenceRepository $externalReferenceRepository): self
+    {
+        $this->externalReferenceRepository = $externalReferenceRepository;
+
+        return $this;
+    }
+
     /**
      * @psalm-assert Classification::* $type
      *

src/Core/Models/ExternalReference.php

@@ -0,0 +1,150 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * This file is part of CycloneDX PHP Library.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * Copyright (c) Steve Springett. All Rights Reserved.
+ */
+
+namespace CycloneDX\Core\Models;
+
+use CycloneDX\Core\Enums\ExternalReferenceType;
+use CycloneDX\Core\Repositories\HashRepository;
+use DomainException;
+
+/**
+ * External references provide a way to document systems, sites, and information that may be relevant
+ * but which are not included with the BOM.
+ *
+ * @author jkowalleck
+ */
+class ExternalReference
+{
+    /**
+     * Specifies the type of external reference. There are built-in types to describe common
+     * references. If a type does not exist for the reference being referred to, use the "other" type.
+     *
+     * @var string
+     * @psalm-var ExternalReferenceType::*
+     * @psalm-suppress PropertyNotSetInConstructor
+     */
+    private $type;
+
+    /**
+     * The URL to the external reference.
+     *
+     * @var string
+     * @psalm-suppress PropertyNotSetInConstructor
+     */
+    private $url;
+
+    /**
+     * An optional comment describing the external reference.
+     *
+     * @var string|null
+     */
+    private $comment;
+
+    /**
+     * @var HashRepository|null
+     */
+    private $hashRepository;
+
+    /**
+     * @psalm-return  ExternalReferenceType::*
+     */
+    public function getType(): string
+    {
+        return $this->type;
+    }
+
+    /**
+     * @param string $type A valid {@see \CycloneDX\Core\Enums\ExternalReferenceType}
+     * @psalm-assert ExternalReferenceType::* $type
+     *
+     * @throws DomainException if value is unknown
+     *
+     * @return $this
+     */
+    public function setType(string $type): self
+    {
+        if (false === ExternalReferenceType::isValidValue($type)) {
+            throw new DomainException("Invalid type: $type");
+        }
+        /** @psalm-var ExternalReferenceType::* $type */
+        $this->type = $type;
+
+        return $this;
+    }
+
+    public function getUrl(): string
+    {
+        return $this->url;
+    }
+
+    /**
+     * @return $this
+     */
+    public function setUrl(string $url): self
+    {
+        $this->url = $url;
+
+        return $this;
+    }
+
+    public function getComment(): ?string
+    {
+        return $this->comment;
+    }
+
+    /**
+     * @return $this
+     */
+    public function setComment(?string $comment): self
+    {
+        $this->comment = $comment;
+
+        return $this;
+    }
+
+    public function getHashRepository(): ?HashRepository
+    {
+        return $this->hashRepository;
+    }
+
+    /**
+     * @return $this
+     */
+    public function setHashRepository(?HashRepository $hashRepository): self
+    {
+        $this->hashRepository = $hashRepository;
+
+        return $this;
+    }
+
+    /**
+     * @psalm-assert ExternalReferenceType::* $type
+     *
+     * @throws DomainException if type is unknown
+     */
+    public function __construct(string $type, string $url)
+    {
+        $this->setType($type);
+        $this->setUrl($url);
+    }
+}

src/Core/Repositories/ExternalReferenceRepository.php

@@ -0,0 +1,72 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * This file is part of CycloneDX PHP Library.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * Copyright (c) Steve Springett. All Rights Reserved.
+ */
+
+namespace CycloneDX\Core\Repositories;
+
+use CycloneDX\Core\Models\ExternalReference;
+
+/**
+ * @author jkowalleck
+ */
+class ExternalReferenceRepository implements \Countable
+{
+    /**
+     * @var ExternalReference[]
+     * @psalm-var list<ExternalReference>
+     */
+    private $externalReferences = [];
+
+    public function __construct(ExternalReference ...$externalReferences)
+    {
+        $this->addExternalReference(...$externalReferences);
+    }
+
+    /**
+     * @return $this
+     */
+    public function addExternalReference(ExternalReference ...$externalReferences): self
+    {
+        foreach ($externalReferences as $externalReference) {
+            if (\in_array($externalReference, $this->externalReferences, true)) {
+                continue;
+            }
+            $this->externalReferences[] = $externalReference;
+        }
+
+        return $this;
+    }
+
+    /**
+     * @return ExternalReference[]
+     * @psalm-return list<ExternalReference>
+     */
+    public function getExternalReferences(): array
+    {
+        return $this->externalReferences;
+    }
+
+    public function count(): int
+    {
+        return \count($this->externalReferences);
+    }
+}