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Adding DownloadAndUnzip minisite action
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141
minisite-core/src/main/java/io/yupiik/tools/minisite/action/builtin/DownloadAndUnzip.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,141 @@ | ||
| /* | ||
| * Copyright (c) 2020 - Yupiik SAS - https://www.yupiik.com | ||
| * 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. | ||
| */ | ||
| package io.yupiik.tools.minisite.action.builtin; | ||
|
|
||
| import java.io.IOException; | ||
| import java.io.StringReader; | ||
| import java.net.URI; | ||
| import java.net.http.HttpClient; | ||
| import java.net.http.HttpRequest; | ||
| import java.net.http.HttpResponse; | ||
| import java.nio.file.FileVisitResult; | ||
| import java.nio.file.Files; | ||
| import java.nio.file.Path; | ||
| import java.nio.file.Paths; | ||
| import java.nio.file.SimpleFileVisitor; | ||
| import java.nio.file.StandardCopyOption; | ||
| import java.nio.file.attribute.BasicFileAttributes; | ||
| import java.util.Map; | ||
| import java.util.Properties; | ||
| import java.util.zip.ZipEntry; | ||
| import java.util.zip.ZipInputStream; | ||
|
|
||
| import static java.util.Objects.requireNonNull; | ||
| import static java.util.Optional.ofNullable; | ||
|
|
||
| public class DownloadAndUnzip implements Runnable { | ||
| private final String url; | ||
| private final String subpath; | ||
| private final String target; | ||
| private final String workdir; | ||
| private final Properties headers; | ||
|
|
||
| public DownloadAndUnzip(final Map<String, String> configuration) { | ||
| this.url = requireNonNull(configuration.get("url"), "No 'url'."); | ||
| this.subpath = configuration.getOrDefault("subpath", ""); | ||
| this.target = requireNonNull(configuration.get("target"), "No 'target'"); | ||
| this.workdir = configuration.get("workdir"); | ||
| this.headers = ofNullable(configuration.get("headers")) | ||
| .map(h -> { | ||
| final Properties props = new Properties(); | ||
| try (final StringReader reader = new StringReader(h)) { | ||
| props.load(reader); | ||
| } catch (final IOException e) { | ||
| throw new IllegalStateException(e); | ||
| } | ||
| return props; | ||
| }) | ||
| .orElseGet(Properties::new); | ||
| } | ||
|
|
||
| @Override | ||
| public void run() { | ||
| final HttpClient http = HttpClient.newBuilder().followRedirects(HttpClient.Redirect.ALWAYS).build(); | ||
| final HttpRequest.Builder builder = HttpRequest.newBuilder() | ||
| .GET() | ||
| .uri(URI.create(url)); | ||
| headers.stringPropertyNames().forEach(key -> builder.header(key, headers.getProperty(key))); | ||
|
|
||
| final boolean deleteWorkDir = workdir == null || !Files.exists(Paths.get(workdir)); | ||
| final Path work = ofNullable(workdir) | ||
| .map(Paths::get) | ||
| .orElseGet(() -> { | ||
| try { | ||
| return Files.createTempDirectory("ypkmst"); | ||
| } catch (final IOException e) { | ||
| throw new IllegalStateException(e); | ||
| } | ||
| }); | ||
| try { | ||
| final Path zip = Files.createDirectories(work).resolve("download-" + url.hashCode() + ".zip"); | ||
| Files.deleteIfExists(zip); | ||
| try { | ||
| final HttpResponse<Path> response = http.send( | ||
| builder.build(), | ||
| HttpResponse.BodyHandlers.ofFile(zip)); | ||
| if (response.statusCode() < 200 || response.statusCode() > 399) { | ||
| throw new IllegalStateException(response.toString()); | ||
| } | ||
|
|
||
| final Path baseOutput = Paths.get(target); | ||
| try (final ZipInputStream jar = new ZipInputStream(Files.newInputStream(zip))) { | ||
| ZipEntry entry; | ||
| while ((entry = jar.getNextEntry()) != null) { | ||
| if (!entry.getName().startsWith(subpath) && !entry.isDirectory()) { | ||
| continue; | ||
| } | ||
| final Path out = baseOutput.resolve(entry.getName().substring(subpath.length())); | ||
| if (out.getParent() != null) { | ||
| Files.createDirectories(out.getParent()); | ||
| } | ||
| Files.copy(jar, out, StandardCopyOption.REPLACE_EXISTING); | ||
| } | ||
| } | ||
| } finally { | ||
| Files.deleteIfExists(zip); | ||
| } | ||
| } catch (final IOException e) { | ||
| throw new IllegalStateException(e); | ||
| } catch (final InterruptedException e) { | ||
| Thread.currentThread().interrupt(); | ||
| throw new IllegalStateException(e); | ||
| } finally { | ||
| if (deleteWorkDir) { | ||
| delete(work); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| private void delete(final Path work) { | ||
| try { | ||
| Files.walkFileTree(work, new SimpleFileVisitor<Path>() { | ||
| @Override | ||
| public FileVisitResult visitFile(final Path file, final BasicFileAttributes attrs) throws IOException { | ||
| Files.delete(file); | ||
| return super.visitFile(file, attrs); | ||
| } | ||
|
|
||
| @Override | ||
| public FileVisitResult postVisitDirectory(final Path dir, final IOException exc) throws IOException { | ||
| Files.delete(dir); | ||
| return super.postVisitDirectory(dir, exc); | ||
| } | ||
| }); | ||
| } catch (final IOException e) { | ||
| // no-op | ||
| } | ||
| } | ||
| } |