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Automated driver management and other helper features for Selenium
WebDriver in Java
/*
* (C) Copyright 2015 Boni Garcia (https://bonigarcia.github.io/)
*
* 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.github.bonigarcia.wdm.online;
import static io.github.bonigarcia.wdm.config.Architecture.ARM64;
import static io.github.bonigarcia.wdm.config.DriverManagerType.CHROME;
import static io.github.bonigarcia.wdm.config.DriverManagerType.CHROMIUM;
import static io.github.bonigarcia.wdm.managers.ChromeDriverManager.MIN_CHROMEDRIVER_IN_CFT;
import static java.io.File.separator;
import static java.lang.invoke.MethodHandles.lookup;
import static java.nio.file.Files.createTempDirectory;
import static java.nio.file.Files.delete;
import static java.util.Locale.ROOT;
import static java.util.Optional.empty;
import static java.util.Optional.of;
import static org.apache.commons.io.FileUtils.copyInputStreamToFile;
import static org.apache.commons.io.FileUtils.deleteDirectory;
import static org.apache.commons.io.FileUtils.listFiles;
import static org.apache.commons.io.FileUtils.moveFileToDirectory;
import static org.slf4j.LoggerFactory.getLogger;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
import java.util.Collection;
import java.util.Enumeration;
import java.util.List;
import java.util.Optional;
import java.util.function.Function;
import java.util.zip.GZIPInputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import org.apache.commons.compress.archivers.tar.TarArchiveEntry;
import org.apache.commons.compress.archivers.tar.TarArchiveInputStream;
import org.apache.commons.io.IOUtils;
import org.slf4j.Logger;
import io.github.bonigarcia.wdm.config.Config;
import io.github.bonigarcia.wdm.config.DriverManagerType;
import io.github.bonigarcia.wdm.config.OperatingSystem;
import io.github.bonigarcia.wdm.config.WebDriverManagerException;
import io.github.bonigarcia.wdm.versions.VersionDetector;
/**
* Downloader class.
*
* @author Boni Garcia
* @since 1.0.0
*/
public class Downloader {
static final Logger log = getLogger(lookup().lookupClass());
HttpClient httpClient;
Config config;
Function> postDownloadFunction;
public Downloader(HttpClient httpClient, Config config,
Function> postDownloadFunction) {
this.httpClient = httpClient;
this.config = config;
this.postDownloadFunction = postDownloadFunction;
}
public synchronized String download(URL url, String driverVersion,
String driverName, DriverManagerType driverManagerType)
throws IOException {
File targetFile = getTarget(driverVersion, driverName,
driverManagerType, url);
Optional driver = checkDriver(driverName, targetFile);
if (!driver.isPresent()) {
driver = downloadAndExtract(url, targetFile);
}
return driver.get().toString();
}
public File getTarget(String driverVersion, String driverName,
DriverManagerType driverManagerType, URL url) {
String zip = url.getFile().substring(url.getFile().lastIndexOf('/'));
String cachePath = config.getCacheFolder().getAbsolutePath();
OperatingSystem os = config.getOperatingSystem();
String architecture = config.getArchitecture().toString()
.toLowerCase(ROOT);
int majorDriverVersion = Integer
.parseInt(VersionDetector.getMajorVersion(driverVersion));
if (os.isWin() && majorDriverVersion < MIN_CHROMEDRIVER_IN_CFT
&& (driverManagerType == CHROME
|| driverManagerType == CHROMIUM)) {
log.trace(
"{} in Windows is only available for 32 bits architecture",
driverName);
architecture = "32";
}
String osName = os.getName();
if (config.getArchitecture() == ARM64) {
osName += "-";
}
String target = config.isAvoidOutputTree() ? cachePath + zip
: cachePath + separator + driverName + separator + osName
+ architecture + separator + driverVersion + zip;
log.trace("Target file for URL {} driver version {} = {}", url,
driverVersion, target);
return new File(target);
}
private Optional downloadAndExtract(URL url, File targetFile)
throws IOException {
log.info("Downloading {}", url);
File targetFolder = targetFile.getParentFile();
File tempDir = config.isAvoidTmpFolder() ? targetFolder
: createTempDirectory("").toFile();
File temporaryFile = new File(tempDir, targetFile.getName());
log.trace("Target folder {} ... using temporal file {}", targetFolder,
temporaryFile);
copyInputStreamToFile(httpClient.execute(httpClient.createHttpGet(url))
.getEntity().getContent(), temporaryFile);
List extractedFiles = extract(temporaryFile);
File resultingDriver = new File(targetFolder,
extractedFiles.iterator().next().getName());
boolean driverExists = resultingDriver.exists();
if ((!driverExists || config.isForceDownload())
&& !config.isAvoidTmpFolder()) {
if (driverExists) {
log.debug("Overriding former driver {}", resultingDriver);
deleteFile(resultingDriver);
}
for (File f : extractedFiles) {
moveFileToDirectory(f, targetFolder, true);
}
}
if (!config.isExecutable(resultingDriver)) {
setFileExecutable(resultingDriver);
}
if (!config.isAvoidTmpFolder()) {
deleteFolder(tempDir);
}
log.trace("Driver after extraction {}", resultingDriver);
return of(resultingDriver);
}
private Optional checkDriver(String driverName, File targetFile) {
File parentFolder = targetFile.getParentFile();
if (parentFolder.exists() && !config.isForceDownload()) {
// Check if driver exits in parent folder and it is valid
Collection listFiles = listFiles(parentFolder, null, true);
for (File file : listFiles) {
if (file.getName().startsWith(driverName)
&& config.isExecutable(file)) {
log.trace("Using {} previously downloaded", driverName);
return of(file);
}
}
log.trace("{} does not exist in cache", driverName);
}
return empty();
}
private List extract(File compressedFile) throws IOException {
String fileName = compressedFile.getName().toLowerCase(ROOT);
boolean extractFile = !fileName.endsWith("exe")
&& !fileName.endsWith("jar");
if (extractFile) {
log.info("Extracting driver from compressed file {}", fileName);
}
if (fileName.endsWith("tar.gz")) {
unTarGz(compressedFile);
} else if (fileName.endsWith("gz")) {
unGzip(compressedFile);
} else if (fileName.endsWith("zip")) {
unZip(compressedFile);
}
if (extractFile) {
deleteFile(compressedFile);
}
return postDownloadFunction.apply(compressedFile);
}
private void unZip(File compressedFile) throws IOException {
File file = null;
try (ZipFile zipFolder = new ZipFile(compressedFile)) {
Enumeration enu = zipFolder.entries();
while (enu.hasMoreElements()) {
ZipEntry zipEntry = (ZipEntry) enu.nextElement();
String name = zipEntry.getName();
long size = zipEntry.getSize();
long compressedSize = zipEntry.getCompressedSize();
log.trace("Unzipping {} (size: {} KB, compressed size: {} KB)",
name, size, compressedSize);
file = new File(compressedFile.getParentFile(), name);
if (!file.exists() || config.isForceDownload()) {
if (name.endsWith("/")) {
file.mkdirs();
continue;
}
File parent = file.getParentFile();
if (parent != null) {
parent.mkdirs();
}
try (InputStream is = zipFolder.getInputStream(zipEntry)) {
copyInputStreamToFile(is, file);
}
setFileExecutable(file);
} else {
log.debug("{} already exists", file);
}
}
}
}
private void unGzip(File archive) throws IOException {
log.trace("UnGzip {}", archive);
String fileName = archive.getName();
int iDash = fileName.indexOf('-');
if (iDash != -1) {
fileName = fileName.substring(0, iDash);
}
int iDot = fileName.indexOf('.');
if (iDot != -1) {
fileName = fileName.substring(0, iDot);
}
File target = new File(archive.getParentFile(), fileName);
try (GZIPInputStream in = new GZIPInputStream(
new FileInputStream(archive))) {
try (FileOutputStream out = new FileOutputStream(target)) {
for (int c = in.read(); c != -1; c = in.read()) {
out.write(c);
}
}
}
if (!target.getName().toLowerCase(ROOT).contains(".exe")
&& target.exists()) {
setFileExecutable(target);
}
}
public void unTarGz(File tarGzFile) throws IOException {
String destDir = tarGzFile.getParent();
TarArchiveEntry entry = null;
TarArchiveEntry[] subEntries = null;
File subEntryFile = null;
try (FileInputStream fis = new FileInputStream(tarGzFile);
GZIPInputStream gis = new GZIPInputStream(fis);
TarArchiveInputStream taris = new TarArchiveInputStream(gis);) {
while ((entry = taris.getNextEntry()) != null) {
StringBuilder entryFileName = new StringBuilder();
entryFileName.append(destDir).append(File.separator)
.append(entry.getName());
File entryFile = new File(entryFileName.toString());
if (entry.isDirectory()) {
if (!entryFile.exists()) {
entryFile.mkdir();
}
subEntries = entry.getDirectoryEntries();
for (int i = 0; i < subEntries.length; i++) {
try (OutputStream out = new FileOutputStream(
subEntryFile)) {
subEntryFile = new File(entryFileName.toString(),
subEntries[i].getName());
IOUtils.copy(taris, out);
}
}
} else {
try (OutputStream out = new FileOutputStream(entryFile)) {
IOUtils.copy(taris, out);
if (entryFile.getName().endsWith(".gz")) {
unTarGz(entryFile.getAbsoluteFile());
}
}
}
}
}
}
protected void setFileExecutable(File file) {
if (!file.setExecutable(true)) {
log.warn("Error setting file {} as executable", file);
}
}
public void renameFile(File from, File to) {
log.trace("Renaming file from {} to {}", from, to);
if (to.exists()) {
deleteFile(to);
}
if (!from.renameTo(to)) {
log.warn("Error renaming file from {} to {}", from, to);
}
}
public static void deleteFile(File file) {
log.trace("Deleting file {}", file);
try {
delete(file.toPath());
} catch (IOException e) {
throw new WebDriverManagerException(e);
}
}
public void deleteFolder(File folder) {
if (folder.isDirectory()) {
log.trace("Deleting folder {}", folder);
try {
deleteDirectory(folder);
} catch (IOException e) {
throw new WebDriverManagerException(e);
}
} else {
log.trace("{} cannot be deleted since it is not a directory",
folder);
}
}
}