8a297142b672dcef601e98656129c23e1cff53a5
[sdc.git] /
1 /*-
2  * ============LICENSE_START=======================================================
3  *  Copyright (C) 2019 Nordix Foundation.
4  * ================================================================================
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  *      http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  *
17  * SPDX-License-Identifier: Apache-2.0
18  * ============LICENSE_END=========================================================
19  */
20
21 package org.openecomp.sdc.vendorsoftwareproduct.impl.orchestration.csar.validation;
22
23
24 import static org.openecomp.sdc.be.config.NonManoArtifactType.ONAP_PM_DICTIONARY;
25 import static org.openecomp.sdc.be.config.NonManoArtifactType.ONAP_SW_INFORMATION;
26 import static org.openecomp.sdc.be.config.NonManoArtifactType.ONAP_VES_EVENTS;
27 import static org.openecomp.sdc.tosca.csar.CSARConstants.CSAR_VERSION_1_0;
28 import static org.openecomp.sdc.tosca.csar.CSARConstants.CSAR_VERSION_1_1;
29 import static org.openecomp.sdc.tosca.csar.CSARConstants.MANIFEST_METADATA_LIMIT;
30 import static org.openecomp.sdc.tosca.csar.CSARConstants.MANIFEST_PNF_METADATA;
31 import static org.openecomp.sdc.tosca.csar.CSARConstants.MANIFEST_VNF_METADATA;
32 import static org.openecomp.sdc.tosca.csar.CSARConstants.TOSCA_MANIFEST_FILE_EXT;
33 import static org.openecomp.sdc.tosca.csar.CSARConstants.TOSCA_TYPE_PNF;
34 import static org.openecomp.sdc.tosca.csar.CSARConstants.TOSCA_TYPE_VNF;
35 import static org.openecomp.sdc.tosca.csar.ToscaMetaEntry.CREATED_BY_ENTRY;
36 import static org.openecomp.sdc.tosca.csar.ToscaMetaEntry.CSAR_VERSION_ENTRY;
37 import static org.openecomp.sdc.tosca.csar.ToscaMetaEntry.ENTRY_DEFINITIONS;
38 import static org.openecomp.sdc.tosca.csar.ToscaMetaEntry.ETSI_ENTRY_CERTIFICATE;
39 import static org.openecomp.sdc.tosca.csar.ToscaMetaEntry.ETSI_ENTRY_MANIFEST;
40 import static org.openecomp.sdc.tosca.csar.ToscaMetaEntry.TOSCA_META_FILE_VERSION;
41 import static org.openecomp.sdc.tosca.csar.ToscaMetaEntry.TOSCA_META_FILE_VERSION_ENTRY;
42 import static org.openecomp.sdc.tosca.csar.ToscaMetaEntry.TOSCA_META_PATH_FILE_NAME;
43
44 import java.io.IOException;
45 import java.io.InputStream;
46 import java.util.ArrayList;
47 import java.util.Collections;
48 import java.util.HashMap;
49 import java.util.HashSet;
50 import java.util.List;
51 import java.util.Map;
52 import java.util.Optional;
53 import java.util.Set;
54 import java.util.concurrent.CopyOnWriteArrayList;
55 import java.util.stream.Collectors;
56 import org.apache.commons.collections.CollectionUtils;
57 import org.apache.commons.io.FilenameUtils;
58 import org.openecomp.core.impl.ToscaDefinitionImportHandler;
59 import org.openecomp.core.utilities.file.FileContentHandler;
60 import org.openecomp.sdc.be.config.NonManoArtifactType;
61 import org.openecomp.sdc.be.csar.pnf.PnfSoftwareInformation;
62 import org.openecomp.sdc.be.csar.pnf.SoftwareInformationArtifactYamlParser;
63 import org.openecomp.sdc.be.datatypes.enums.ResourceTypeEnum;
64 import org.openecomp.sdc.common.errors.Messages;
65 import org.openecomp.sdc.common.utils.SdcCommon;
66 import org.openecomp.sdc.datatypes.error.ErrorLevel;
67 import org.openecomp.sdc.datatypes.error.ErrorMessage;
68 import org.openecomp.sdc.logging.api.Logger;
69 import org.openecomp.sdc.logging.api.LoggerFactory;
70 import org.openecomp.sdc.tosca.csar.Manifest;
71 import org.openecomp.sdc.tosca.csar.OnboardingToscaMetadata;
72 import org.openecomp.sdc.tosca.csar.SOL004ManifestOnboarding;
73 import org.openecomp.sdc.tosca.csar.ToscaMetaEntry;
74 import org.openecomp.sdc.tosca.csar.ToscaMetadata;
75 import org.openecomp.sdc.vendorsoftwareproduct.impl.onboarding.OnboardingPackageContentHandler;
76 import org.openecomp.sdc.vendorsoftwareproduct.impl.orchestration.csar.validation.exception.MissingCertificateException;
77 import org.openecomp.sdc.vendorsoftwareproduct.impl.orchestration.exceptions.InvalidManifestMetadataException;
78 import org.openecomp.sdc.vendorsoftwareproduct.security.SecurityManager;
79 import org.openecomp.sdc.vendorsoftwareproduct.security.SecurityManagerException;
80 import org.yaml.snakeyaml.Yaml;
81
82 /**
83  * Validates the contents of the package to ensure it complies with the "CSAR with TOSCA-Metadata directory" structure
84  * as defined in ETSI GS NFV-SOL 004 v2.6.1.
85  */
86 class SOL004MetaDirectoryValidator implements Validator {
87
88     private static final Logger LOGGER = LoggerFactory.getLogger(SOL004MetaDirectoryValidator.class);
89
90     private static final String MANIFEST_SOURCE = "Source";
91     private static final String MANIFEST_NON_MANO_SOURCE = "Non-MANO Source";
92     private final List<ErrorMessage> errorsByFile = new CopyOnWriteArrayList<>();
93     private final SecurityManager securityManager;
94     private OnboardingPackageContentHandler contentHandler;
95     private Set<String> folderList;
96     private ToscaMetadata toscaMetadata;
97
98     public SOL004MetaDirectoryValidator() {
99         securityManager = SecurityManager.getInstance();
100     }
101
102     //for tests purpose
103     SOL004MetaDirectoryValidator(final SecurityManager securityManager) {
104         this.securityManager = securityManager;
105     }
106
107     @Override
108     public Map<String, List<ErrorMessage>> validateContent(final FileContentHandler fileContentHandler) {
109         this.contentHandler = (OnboardingPackageContentHandler) fileContentHandler;
110         this.folderList = contentHandler.getFolderList();
111         parseToscaMetadata();
112         verifyMetadataFile();
113
114         if (packageHasCertificate()) {
115             verifySignedFiles();
116         }
117         return Collections.unmodifiableMap(getAnyValidationErrors());
118     }
119
120     private boolean packageHasCertificate() {
121         final String certificatePath = getCertificatePath().orElse(null);
122         return contentHandler.containsFile(certificatePath);
123     }
124
125     private Optional<String> getCertificatePath() {
126         return toscaMetadata.getEntry(ETSI_ENTRY_CERTIFICATE);
127     }
128
129     /**
130      * Parses the {@link ToscaMetaEntry#TOSCA_META_PATH_FILE_NAME;} file
131      */
132     private void parseToscaMetadata() {
133         try {
134             toscaMetadata =
135                 OnboardingToscaMetadata
136                     .parseToscaMetadataFile(contentHandler.getFileContentAsStream(TOSCA_META_PATH_FILE_NAME.getName()));
137         } catch (final IOException e) {
138             reportError(ErrorLevel.ERROR, Messages.METADATA_PARSER_INTERNAL.getErrorMessage());
139             LOGGER.error(Messages.METADATA_PARSER_INTERNAL.getErrorMessage(), e.getMessage(), e);
140         }
141     }
142
143     private void verifyMetadataFile() {
144         if (toscaMetadata.isValid() && hasETSIMetadata()) {
145             verifyManifestNameAndExtension();
146             handleMetadataEntries();
147         } else {
148             errorsByFile.addAll(toscaMetadata.getErrors());
149         }
150     }
151
152     private void verifySignedFiles() {
153         final Map<String, String> signedFileMap = contentHandler.getFileAndSignaturePathMap(SecurityManager.ALLOWED_SIGNATURE_EXTENSIONS);
154         final String packageCertificatePath = getCertificatePath().orElse(null);
155         final byte[] packageCert = contentHandler.getFileContent(packageCertificatePath);
156         if(packageCert == null) {
157             throw new MissingCertificateException("Expected package certificate");
158         }
159         signedFileMap.entrySet().stream().filter(entry -> entry.getValue() != null).forEach(entry -> {
160             final String filePath = entry.getKey();
161             final String fileSignaturePath = entry.getValue();
162             final byte[] fileBytes = contentHandler.getFileContent(filePath);
163             final byte[] fileSignatureBytes = contentHandler.getFileContent(fileSignaturePath);
164             try {
165                 if (!securityManager.verifySignedData(fileSignatureBytes, packageCert, fileBytes)) {
166                     reportError(ErrorLevel.ERROR,
167                         Messages.ARTIFACT_INVALID_SIGNATURE.formatMessage(fileSignaturePath, filePath));
168                 }
169             } catch (final SecurityManagerException e) {
170                 final String errorMessage = Messages.ARTIFACT_SIGNATURE_VALIDATION_ERROR
171                     .formatMessage(fileSignaturePath, filePath, packageCertificatePath, e.getMessage());
172                 reportError(ErrorLevel.ERROR, errorMessage);
173                 LOGGER.error(errorMessage, e);
174             }
175         });
176     }
177
178     private void verifyManifestNameAndExtension() {
179         final Map<String, String> entries = toscaMetadata.getMetaEntries();
180         final String manifestFileName = getFileName(entries.get(ETSI_ENTRY_MANIFEST.getName()));
181         final String manifestExtension = getFileExtension(entries.get(ETSI_ENTRY_MANIFEST.getName()));
182         final String mainDefinitionFileName = getFileName(entries.get(ENTRY_DEFINITIONS.getName()));
183         if (!(TOSCA_MANIFEST_FILE_EXT).equals(manifestExtension)) {
184             reportError(ErrorLevel.ERROR, Messages.MANIFEST_INVALID_EXT.getErrorMessage());
185         }
186         if (!mainDefinitionFileName.equals(manifestFileName)) {
187             reportError(ErrorLevel.ERROR, String.format(Messages.MANIFEST_INVALID_NAME.getErrorMessage(),
188                 manifestFileName, mainDefinitionFileName));
189         }
190     }
191
192     private String getFileExtension(final String filePath) {
193         return FilenameUtils.getExtension(filePath);
194     }
195
196     private String getFileName(final String filePath) {
197         return FilenameUtils.getBaseName(filePath);
198     }
199
200     private boolean hasETSIMetadata() {
201         final Map<String, String> entries = toscaMetadata.getMetaEntries();
202         return hasEntry(entries, TOSCA_META_FILE_VERSION_ENTRY.getName())
203             && hasEntry(entries, CSAR_VERSION_ENTRY.getName())
204             && hasEntry(entries, CREATED_BY_ENTRY.getName());
205     }
206
207     private boolean hasEntry(final Map<String, String> entries, final String mandatoryEntry) {
208         if (!entries.containsKey(mandatoryEntry)) {
209             reportError(ErrorLevel.ERROR,
210                 String.format(Messages.METADATA_MISSING_ENTRY.getErrorMessage(), mandatoryEntry));
211             return false;
212         }
213         return true;
214     }
215
216     private void handleMetadataEntries() {
217         toscaMetadata.getMetaEntries().entrySet().parallelStream().forEach(this::handleEntry);
218     }
219
220     private void handleEntry(final Map.Entry<String, String> entry) {
221         final String key = entry.getKey();
222         final ToscaMetaEntry toscaMetaEntry = ToscaMetaEntry.parse(entry.getKey()).orElse(null);
223         if (toscaMetaEntry == null) {
224             reportError(ErrorLevel.ERROR, Messages.METADATA_UNSUPPORTED_ENTRY.formatMessage(key));
225             LOGGER.warn(Messages.METADATA_UNSUPPORTED_ENTRY.getErrorMessage(), key);
226             return;
227         }
228         final String value = entry.getValue();
229
230         switch (toscaMetaEntry) {
231             case TOSCA_META_FILE_VERSION_ENTRY:
232             case CSAR_VERSION_ENTRY:
233             case CREATED_BY_ENTRY:
234                 verifyMetadataEntryVersions(key, value);
235                 break;
236             case ENTRY_DEFINITIONS:
237                 validateDefinitionFile(value);
238                 break;
239             case ETSI_ENTRY_MANIFEST:
240                 validateManifestFile(value);
241                 break;
242             case ETSI_ENTRY_CHANGE_LOG:
243                 validateChangeLog(value);
244                 break;
245             case ETSI_ENTRY_TESTS:
246             case ETSI_ENTRY_LICENSES:
247                 validateOtherEntries(entry);
248                 break;
249             case ETSI_ENTRY_CERTIFICATE:
250                 validateCertificate(value);
251                 break;
252             default:
253                 reportError(ErrorLevel.ERROR, Messages.METADATA_UNSUPPORTED_ENTRY.formatMessage(key));
254                 LOGGER.warn(Messages.METADATA_UNSUPPORTED_ENTRY.getErrorMessage(), key);
255                 break;
256         }
257     }
258
259     private void validateOtherEntries(final Map.Entry entry) {
260         final String manifestFile = toscaMetadata.getMetaEntries().get(ETSI_ENTRY_MANIFEST.getName());
261         if (verifyFileExists(contentHandler.getFileList(), manifestFile)) {
262             final Manifest onboardingManifest = new SOL004ManifestOnboarding();
263             onboardingManifest.parse(contentHandler.getFileContentAsStream(manifestFile));
264             final Optional<ResourceTypeEnum> resourceType = onboardingManifest.getType();
265             if (resourceType.isPresent() && resourceType.get() == ResourceTypeEnum.VF) {
266                 final String value = (String) entry.getValue();
267                 validateOtherEntries(value);
268             } else {
269                 final String key = (String) entry.getKey();
270                 reportError(ErrorLevel.ERROR,
271                     String.format(Messages.MANIFEST_INVALID_PNF_METADATA.getErrorMessage(), key));
272             }
273
274         }
275     }
276
277     private void verifyMetadataEntryVersions(final String key, final String version) {
278         if (!(isValidTOSCAVersion(key, version) || isValidCSARVersion(key, version)
279             || CREATED_BY_ENTRY.getName().equals(key))) {
280             errorsByFile.add(new ErrorMessage(ErrorLevel.ERROR,
281                 String.format(Messages.METADATA_INVALID_VERSION.getErrorMessage(), key, version)));
282             LOGGER.error("{}: key {} - value {} ", Messages.METADATA_INVALID_VERSION.getErrorMessage(), key, version);
283         }
284     }
285
286     private boolean isValidTOSCAVersion(final String key, final String version) {
287         return TOSCA_META_FILE_VERSION_ENTRY.getName().equals(key) && TOSCA_META_FILE_VERSION.getName().equals(version);
288     }
289
290     private boolean isValidCSARVersion(final String value, final String version) {
291         return CSAR_VERSION_ENTRY.getName().equals(value) && (CSAR_VERSION_1_1.equals(version)
292             || CSAR_VERSION_1_0.equals(version));
293     }
294
295     private void validateDefinitionFile(final String filePath) {
296         final Set<String> existingFiles = contentHandler.getFileList();
297
298         if (verifyFileExists(existingFiles, filePath)) {
299             final ToscaDefinitionImportHandler toscaDefinitionImportHandler =
300                 new ToscaDefinitionImportHandler(contentHandler.getFiles(), filePath);
301             final List<ErrorMessage> validationErrorList = toscaDefinitionImportHandler.getErrors();
302             if (CollectionUtils.isNotEmpty(validationErrorList)) {
303                 errorsByFile.addAll(validationErrorList);
304             }
305         } else {
306             reportError(ErrorLevel.ERROR, String.format(Messages.MISSING_DEFINITION_FILE.getErrorMessage(), filePath));
307         }
308     }
309
310     private boolean verifyFileExists(final Set<String> existingFiles, final String filePath) {
311         return existingFiles.contains(filePath);
312     }
313
314     private void validateManifestFile(final String filePath) {
315         final Set<String> existingFiles = contentHandler.getFileList();
316         if (verifyFileExists(existingFiles, filePath)) {
317             final Manifest onboardingManifest = new SOL004ManifestOnboarding();
318             onboardingManifest.parse(contentHandler.getFileContentAsStream(filePath));
319             if (onboardingManifest.isValid()) {
320                 try {
321                     verifyManifestMetadata(onboardingManifest.getMetadata());
322                 } catch (final InvalidManifestMetadataException e) {
323                     reportError(ErrorLevel.ERROR, e.getMessage());
324                     LOGGER.error(e.getMessage(), e);
325                 }
326                 verifyManifestSources(onboardingManifest);
327             } else {
328                 final List<String> manifestErrors = onboardingManifest.getErrors();
329                 manifestErrors.forEach(error -> reportError(ErrorLevel.ERROR, error));
330             }
331         } else {
332             reportError(ErrorLevel.ERROR, String.format(Messages.MANIFEST_NOT_FOUND.getErrorMessage(), filePath));
333         }
334     }
335
336     private void verifyManifestMetadata(final Map<String, String> metadata) {
337         if (metadata.size() != MANIFEST_METADATA_LIMIT) {
338             reportError(ErrorLevel.ERROR,
339                 String.format(Messages.MANIFEST_METADATA_DOES_NOT_MATCH_LIMIT.getErrorMessage(),
340                     MANIFEST_METADATA_LIMIT));
341         }
342         if (isPnfMetadata(metadata)) {
343             handleMetadataEntries(metadata, MANIFEST_PNF_METADATA);
344         } else {
345             handleMetadataEntries(metadata, MANIFEST_VNF_METADATA);
346         }
347     }
348
349     private boolean isPnfMetadata(final Map<String, String> metadata) {
350         final String firstMetadataDefinition = metadata.keySet().iterator().next();
351         final String expectedMetadataType =
352             firstMetadataDefinition.contains(TOSCA_TYPE_PNF) ? TOSCA_TYPE_PNF : TOSCA_TYPE_VNF;
353         if (metadata.keySet().stream()
354             .anyMatch((final String metadataEntry) -> !metadataEntry.contains(expectedMetadataType))) {
355             throw new InvalidManifestMetadataException(Messages.MANIFEST_METADATA_INVALID_ENTRY.getErrorMessage());
356         }
357
358         return TOSCA_TYPE_PNF.equals(expectedMetadataType);
359     }
360
361     private void handleMetadataEntries(final Map<String, String> metadata, final Set<String> manifestMetadata) {
362         manifestMetadata.stream()
363             .filter(requiredEntry -> !metadata.containsKey(requiredEntry))
364             .forEach(requiredEntry ->
365                 reportError(ErrorLevel.ERROR,
366                     String.format(Messages.MANIFEST_METADATA_MISSING_ENTRY.getErrorMessage(), requiredEntry)));
367     }
368
369     /**
370      * Checks if all manifest sources exists within the package and if all package files are being referred.
371      *
372      * @param onboardingManifest The manifest
373      */
374     private void verifyManifestSources(final Manifest onboardingManifest) {
375         final Set<String> packageFiles = contentHandler.getFileList();
376         final List<String> sources = filterSources(onboardingManifest.getSources());
377         verifyFilesExist(packageFiles, sources, MANIFEST_SOURCE);
378
379         final Map<String, List<String>> nonManoArtifacts = onboardingManifest.getNonManoSources();
380
381         final List<String> nonManoValidFilePaths = new ArrayList<>();
382         nonManoArtifacts.forEach((nonManoType, files) -> {
383             final List<String> internalNonManoFileList = filterSources(files);
384             nonManoValidFilePaths.addAll(internalNonManoFileList);
385             final NonManoArtifactType nonManoArtifactType = NonManoArtifactType.parse(nonManoType).orElse(null);
386             if (nonManoArtifactType == ONAP_PM_DICTIONARY || nonManoArtifactType == ONAP_VES_EVENTS) {
387                 internalNonManoFileList.forEach(this::validateYaml);
388             } else if (nonManoArtifactType == ONAP_SW_INFORMATION) {
389                 validateSoftwareInformationNonManoArtifact(files);
390             }
391         });
392
393         verifyFilesExist(packageFiles, nonManoValidFilePaths, MANIFEST_NON_MANO_SOURCE);
394
395         final Set<String> allReferredFiles = new HashSet<>();
396         allReferredFiles.addAll(sources);
397         allReferredFiles.addAll(nonManoValidFilePaths);
398         verifyFilesBeingReferred(allReferredFiles, packageFiles);
399     }
400
401     private void validateSoftwareInformationNonManoArtifact(final List<String> files) {
402         if (CollectionUtils.isEmpty(files)) {
403             reportError(ErrorLevel.ERROR, Messages.EMPTY_SW_INFORMATION_NON_MANO_ERROR.getErrorMessage());
404             return;
405         }
406         if (files.size() != 1) {
407             final String formattedFileList = files.stream()
408                 .map(filePath -> String.format("'%s'", filePath))
409                 .collect(Collectors.joining(", "));
410             reportError(ErrorLevel.ERROR,
411                 Messages.UNIQUE_SW_INFORMATION_NON_MANO_ERROR.formatMessage(formattedFileList));
412             return;
413         }
414         final String swInformationFilePath = files.get(0);
415         final byte[] swInformationYaml = contentHandler.getFileContent(swInformationFilePath);
416         final Optional<PnfSoftwareInformation> parsedYaml = SoftwareInformationArtifactYamlParser
417             .parse(swInformationYaml);
418         if(!parsedYaml.isPresent()) {
419             reportError(ErrorLevel.ERROR,
420                 Messages.INVALID_SW_INFORMATION_NON_MANO_ERROR.formatMessage(swInformationFilePath));
421         } else {
422             final PnfSoftwareInformation pnfSoftwareInformation = parsedYaml.get();
423             if (!pnfSoftwareInformation.isValid()) {
424                 reportError(ErrorLevel.ERROR,
425                     Messages.INCORRECT_SW_INFORMATION_NON_MANO_ERROR.formatMessage(swInformationFilePath));
426             }
427         }
428     }
429
430     /**
431      * Validates if a YAML file has the correct extension, is not empty and the content is a valid YAML. Reports each
432      * error found.
433      *
434      * @param filePath the file path inside the package
435      */
436     private void validateYaml(final String filePath) {
437         if (!contentHandler.containsFile(filePath)) {
438             return;
439         }
440         final String fileExtension = getFileExtension(filePath);
441         if (!"yaml".equalsIgnoreCase(fileExtension) && !"yml".equalsIgnoreCase(fileExtension)) {
442             reportError(ErrorLevel.ERROR, Messages.INVALID_YAML_EXTENSION.formatMessage(filePath));
443             return;
444         }
445
446         try (final InputStream fileContent = contentHandler.getFileContentAsStream(filePath)) {
447             if (fileContent == null) {
448                 reportError(ErrorLevel.ERROR, Messages.EMPTY_YAML_FILE_1.formatMessage(filePath));
449                 return;
450             }
451             new Yaml().loadAll(fileContent).iterator().next();
452         } catch (final IOException e) {
453             final String errorMsg = Messages.FILE_LOAD_CONTENT_ERROR.formatMessage(filePath);
454             reportError(ErrorLevel.ERROR, errorMsg);
455             LOGGER.debug(errorMsg, e);
456         } catch (final Exception e) {
457             final String message = Messages.INVALID_YAML_FORMAT_1.formatMessage(filePath, e.getMessage());
458             LOGGER.debug(message, e);
459             reportError(ErrorLevel.ERROR, message);
460         }
461     }
462
463     /**
464      * Checks if all package files are referred in manifest. Reports missing references.
465      *
466      * @param referredFileSet the list of referred files path
467      * @param packageFileSet  the list of package file path
468      */
469     private void verifyFilesBeingReferred(final Set<String> referredFileSet, final Set<String> packageFileSet) {
470         packageFileSet.forEach(filePath -> {
471             if (!referredFileSet.contains(filePath)) {
472                 reportError(ErrorLevel.ERROR,
473                     String.format(Messages.MISSING_MANIFEST_REFERENCE.getErrorMessage(), filePath));
474             }
475         });
476     }
477
478     private List<String> filterSources(final List<String> source) {
479         return source.stream()
480             .filter(this::externalFileReferences)
481             .collect(Collectors.toList());
482     }
483
484     private boolean externalFileReferences(final String filePath) {
485         return !filePath.contains("://");
486     }
487
488     private void validateOtherEntries(final String folderPath) {
489         if (!verifyFoldersExist(folderList, folderPath)) {
490             reportError(ErrorLevel.ERROR, String.format(Messages.METADATA_MISSING_OPTIONAL_FOLDERS.getErrorMessage(),
491                 folderPath));
492         }
493     }
494
495     private void validateCertificate(final String file) {
496         final Set<String> packageFiles = contentHandler.getFileList();
497         if (!verifyFileExist(packageFiles, file)) {
498             reportError(ErrorLevel.ERROR,
499                 String.format(Messages.MISSING_METADATA_FILES.getErrorMessage(), file, file));
500         }
501     }
502
503     private boolean verifyFoldersExist(final Set<String> folderList, final String folderPath) {
504         return folderList.contains(folderPath + "/");
505     }
506
507     private void verifyFilesExist(final Set<String> existingFiles, final List<String> sources, final String type) {
508         sources.forEach(file -> {
509             if (!existingFiles.contains(file)) {
510                 reportError(ErrorLevel.ERROR,
511                     String.format(Messages.MISSING_MANIFEST_SOURCE.getErrorMessage(), type, file));
512             }
513         });
514     }
515
516     private boolean verifyFileExist(final Set<String> existingFiles, final String file) {
517         return existingFiles.contains(file);
518     }
519
520     private void validateChangeLog(final String filePath) {
521         if (!verifyFileExists(contentHandler.getFileList(), filePath)) {
522             reportError(ErrorLevel.ERROR, String.format(Messages.MISSING_METADATA_FILES.getErrorMessage(), filePath));
523         }
524     }
525
526     private void reportError(final ErrorLevel errorLevel, final String errorMessage) {
527         errorsByFile.add(new ErrorMessage(errorLevel, errorMessage));
528     }
529
530     private Map<String, List<ErrorMessage>> getAnyValidationErrors() {
531         if (errorsByFile.isEmpty()) {
532             return Collections.emptyMap();
533         }
534         final Map<String, List<ErrorMessage>> errors = new HashMap<>();
535         errors.put(SdcCommon.UPLOAD_FILE, errorsByFile);
536         return errors;
537     }
538 }