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[improve][fn] Add configuration for connector & functions package url…
… sources (apache#22184)
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101 changes: 101 additions & 0 deletions
101
...unctions/worker/src/main/java/org/apache/pulsar/functions/worker/PackageUrlValidator.java
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| @@ -0,0 +1,101 @@ | ||
| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one | ||
| * or more contributor license agreements. See the NOTICE file | ||
| * distributed with this work for additional information | ||
| * regarding copyright ownership. The ASF licenses this file | ||
| * to you 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. | ||
| */ | ||
| package org.apache.pulsar.functions.worker; | ||
|
|
||
| import java.net.URI; | ||
| import java.nio.file.Path; | ||
| import java.util.Collections; | ||
| import java.util.List; | ||
| import java.util.regex.Pattern; | ||
| import java.util.stream.Collectors; | ||
| import org.apache.pulsar.functions.proto.Function; | ||
|
|
||
| /** | ||
| * Validates package URLs for functions and connectors. | ||
| * Validates that the package URL is either a file in the connectors or functions directory | ||
| * when referencing connector or function files is enabled, or matches one of the additional url patterns. | ||
| */ | ||
| public class PackageUrlValidator { | ||
| private final Path connectionsDirectory; | ||
| private final Path functionsDirectory; | ||
| private final List<Pattern> additionalConnectionsPatterns; | ||
| private final List<Pattern> additionalFunctionsPatterns; | ||
|
|
||
| public PackageUrlValidator(WorkerConfig workerConfig) { | ||
| this.connectionsDirectory = resolveDirectory(workerConfig.getEnableReferencingConnectorDirectoryFiles(), | ||
| workerConfig.getConnectorsDirectory()); | ||
| this.functionsDirectory = resolveDirectory(workerConfig.getEnableReferencingFunctionsDirectoryFiles(), | ||
| workerConfig.getFunctionsDirectory()); | ||
| this.additionalConnectionsPatterns = | ||
| compilePatterns(workerConfig.getAdditionalEnabledConnectorUrlPatterns()); | ||
| this.additionalFunctionsPatterns = | ||
| compilePatterns(workerConfig.getAdditionalEnabledFunctionsUrlPatterns()); | ||
| } | ||
|
|
||
| private static Path resolveDirectory(Boolean enabled, String directory) { | ||
| return enabled != null && enabled | ||
| ? Path.of(directory).normalize().toAbsolutePath() : null; | ||
| } | ||
|
|
||
| private static List<Pattern> compilePatterns(List<String> additionalPatterns) { | ||
| return additionalPatterns != null ? additionalPatterns.stream().map(Pattern::compile).collect( | ||
| Collectors.toList()) : Collections.emptyList(); | ||
| } | ||
|
|
||
| boolean isValidFunctionsPackageUrl(URI functionPkgUrl) { | ||
| return doesMatch(functionPkgUrl, functionsDirectory, additionalFunctionsPatterns); | ||
| } | ||
|
|
||
| boolean isValidConnectionsPackageUrl(URI functionPkgUrl) { | ||
| return doesMatch(functionPkgUrl, connectionsDirectory, additionalConnectionsPatterns); | ||
| } | ||
|
|
||
| private boolean doesMatch(URI functionPkgUrl, Path directory, List<Pattern> patterns) { | ||
| if (directory != null && "file".equals(functionPkgUrl.getScheme())) { | ||
| Path filePath = Path.of(functionPkgUrl.getPath()).normalize().toAbsolutePath(); | ||
| if (filePath.startsWith(directory)) { | ||
| return true; | ||
| } | ||
| } | ||
| String functionPkgUrlString = functionPkgUrl.normalize().toString(); | ||
| for (Pattern pattern : patterns) { | ||
| if (pattern.matcher(functionPkgUrlString).matches()) { | ||
| return true; | ||
| } | ||
| } | ||
| return false; | ||
| } | ||
|
|
||
| public boolean isValidPackageUrl(Function.FunctionDetails.ComponentType componentType, String functionPkgUrl) { | ||
| URI uri = URI.create(functionPkgUrl); | ||
| if (componentType == null) { | ||
| // if component type is not specified, we need to check both functions and connections | ||
| return isValidFunctionsPackageUrl(uri) || isValidConnectionsPackageUrl(uri); | ||
| } | ||
| switch (componentType) { | ||
| case FUNCTION: | ||
| return isValidFunctionsPackageUrl(uri); | ||
| case SINK: | ||
| case SOURCE: | ||
| return isValidConnectionsPackageUrl(uri); | ||
| default: | ||
| throw new IllegalArgumentException("Unknown component type: " + componentType); | ||
| } | ||
| } | ||
| } |
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