io.prestosql.jdbc.PrestoDriverUri Maven / Gradle / Ivy
/*
* 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.prestosql.jdbc;
import io.prestosql.jdbc.$internal.guava.base.Splitter;
import io.prestosql.jdbc.$internal.guava.collect.ImmutableMap;
import io.prestosql.jdbc.$internal.guava.collect.Maps;
import io.prestosql.jdbc.$internal.guava.net.HostAndPort;
import io.prestosql.jdbc.$internal.client.ClientException;
import io.prestosql.jdbc.$internal.okhttp3.OkHttpClient;
import java.io.File;
import java.net.URI;
import java.net.URISyntaxException;
import java.sql.SQLException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Optional;
import java.util.Properties;
import static io.prestosql.jdbc.$internal.guava.base.Strings.isNullOrEmpty;
import static io.prestosql.jdbc.$internal.client.KerberosUtil.defaultCredentialCachePath;
import static io.prestosql.jdbc.$internal.client.OkHttpUtil.basicAuth;
import static io.prestosql.jdbc.$internal.client.OkHttpUtil.setupCookieJar;
import static io.prestosql.jdbc.$internal.client.OkHttpUtil.setupHttpProxy;
import static io.prestosql.jdbc.$internal.client.OkHttpUtil.setupKerberos;
import static io.prestosql.jdbc.$internal.client.OkHttpUtil.setupSocksProxy;
import static io.prestosql.jdbc.$internal.client.OkHttpUtil.setupSsl;
import static io.prestosql.jdbc.$internal.client.OkHttpUtil.tokenAuth;
import static io.prestosql.jdbc.ConnectionProperties.ACCESS_TOKEN;
import static io.prestosql.jdbc.ConnectionProperties.APPLICATION_NAME_PREFIX;
import static io.prestosql.jdbc.ConnectionProperties.EXTRA_CREDENTIALS;
import static io.prestosql.jdbc.ConnectionProperties.HTTP_PROXY;
import static io.prestosql.jdbc.ConnectionProperties.KERBEROS_CONFIG_PATH;
import static io.prestosql.jdbc.ConnectionProperties.KERBEROS_CREDENTIAL_CACHE_PATH;
import static io.prestosql.jdbc.ConnectionProperties.KERBEROS_KEYTAB_PATH;
import static io.prestosql.jdbc.ConnectionProperties.KERBEROS_PRINCIPAL;
import static io.prestosql.jdbc.ConnectionProperties.KERBEROS_REMOTE_SERVICE_NAME;
import static io.prestosql.jdbc.ConnectionProperties.KERBEROS_SERVICE_PRINCIPAL_PATTERN;
import static io.prestosql.jdbc.ConnectionProperties.KERBEROS_USE_CANONICAL_HOSTNAME;
import static io.prestosql.jdbc.ConnectionProperties.PASSWORD;
import static io.prestosql.jdbc.ConnectionProperties.SOCKS_PROXY;
import static io.prestosql.jdbc.ConnectionProperties.SSL;
import static io.prestosql.jdbc.ConnectionProperties.SSL_KEY_STORE_PASSWORD;
import static io.prestosql.jdbc.ConnectionProperties.SSL_KEY_STORE_PATH;
import static io.prestosql.jdbc.ConnectionProperties.SSL_TRUST_STORE_PASSWORD;
import static io.prestosql.jdbc.ConnectionProperties.SSL_TRUST_STORE_PATH;
import static io.prestosql.jdbc.ConnectionProperties.USER;
import static java.lang.String.format;
import static java.util.Objects.requireNonNull;
/**
* Parses and extracts parameters from a Presto JDBC URL.
*/
final class PrestoDriverUri
{
private static final String JDBC_URL_START = "jdbc:";
private static final Splitter QUERY_SPLITTER = Splitter.on('&').omitEmptyStrings();
private static final Splitter ARG_SPLITTER = Splitter.on('=').limit(2);
private final HostAndPort address;
private final URI uri;
private final Properties properties;
private String catalog;
private String schema;
private final boolean useSecureConnection;
public PrestoDriverUri(String url, Properties driverProperties)
throws SQLException
{
this(parseDriverUrl(url), driverProperties);
}
private PrestoDriverUri(URI uri, Properties driverProperties)
throws SQLException
{
this.uri = requireNonNull(uri, "uri is null");
address = HostAndPort.fromParts(uri.getHost(), uri.getPort());
properties = mergeConnectionProperties(uri, driverProperties);
validateConnectionProperties(properties);
// enable SSL by default for standard port
useSecureConnection = SSL.getValue(properties).orElse(uri.getPort() == 443);
initCatalogAndSchema();
}
public URI getJdbcUri()
{
return uri;
}
public String getSchema()
{
return schema;
}
public String getCatalog()
{
return catalog;
}
public URI getHttpUri()
{
return buildHttpUri();
}
public String getUser()
throws SQLException
{
return USER.getRequiredValue(properties);
}
public Optional getApplicationNamePrefix()
throws SQLException
{
return APPLICATION_NAME_PREFIX.getValue(properties);
}
public Properties getProperties()
{
return properties;
}
public Map getExtraCredentials()
throws SQLException
{
return EXTRA_CREDENTIALS.getValue(properties).orElse(ImmutableMap.of());
}
public void setupClient(OkHttpClient.Builder builder)
throws SQLException
{
try {
setupCookieJar(builder);
setupSocksProxy(builder, SOCKS_PROXY.getValue(properties));
setupHttpProxy(builder, HTTP_PROXY.getValue(properties));
// TODO: fix Tempto to allow empty passwords
String password = PASSWORD.getValue(properties).orElse("");
if (!password.isEmpty() && !password.equals("***empty***")) {
if (!useSecureConnection) {
throw new SQLException("Authentication using username/password requires SSL to be enabled");
}
builder.addInterceptor(basicAuth(getUser(), password));
}
if (useSecureConnection) {
setupSsl(
builder,
SSL_KEY_STORE_PATH.getValue(properties),
SSL_KEY_STORE_PASSWORD.getValue(properties),
SSL_TRUST_STORE_PATH.getValue(properties),
SSL_TRUST_STORE_PASSWORD.getValue(properties));
}
if (KERBEROS_REMOTE_SERVICE_NAME.getValue(properties).isPresent()) {
if (!useSecureConnection) {
throw new SQLException("Authentication using Kerberos requires SSL to be enabled");
}
setupKerberos(
builder,
KERBEROS_SERVICE_PRINCIPAL_PATTERN.getRequiredValue(properties),
KERBEROS_REMOTE_SERVICE_NAME.getRequiredValue(properties),
KERBEROS_USE_CANONICAL_HOSTNAME.getRequiredValue(properties),
KERBEROS_PRINCIPAL.getValue(properties),
KERBEROS_CONFIG_PATH.getValue(properties),
KERBEROS_KEYTAB_PATH.getValue(properties),
Optional.ofNullable(KERBEROS_CREDENTIAL_CACHE_PATH.getValue(properties)
.orElseGet(() -> defaultCredentialCachePath().map(File::new).orElse(null))));
}
if (ACCESS_TOKEN.getValue(properties).isPresent()) {
if (!useSecureConnection) {
throw new SQLException("Authentication using an access token requires SSL to be enabled");
}
builder.addInterceptor(tokenAuth(ACCESS_TOKEN.getValue(properties).get()));
}
}
catch (ClientException e) {
throw new SQLException(e.getMessage(), e);
}
catch (RuntimeException e) {
throw new SQLException("Error setting up connection", e);
}
}
private static Map parseParameters(String query)
throws SQLException
{
Map result = new HashMap<>();
if (query != null) {
Iterable queryArgs = QUERY_SPLITTER.split(query);
for (String queryArg : queryArgs) {
List parts = ARG_SPLITTER.splitToList(queryArg);
if (result.put(parts.get(0), parts.get(1)) != null) {
throw new SQLException(format("Connection property '%s' is in URL multiple times", parts.get(0)));
}
}
}
return result;
}
private static URI parseDriverUrl(String url)
throws SQLException
{
URI uri;
try {
uri = new URI(url.substring(JDBC_URL_START.length()));
}
catch (URISyntaxException e) {
throw new SQLException("Invalid JDBC URL: " + url, e);
}
if (isNullOrEmpty(uri.getHost())) {
throw new SQLException("No host specified: " + url);
}
if (uri.getPort() == -1) {
throw new SQLException("No port number specified: " + url);
}
if ((uri.getPort() < 1) || (uri.getPort() > 65535)) {
throw new SQLException("Invalid port number: " + url);
}
return uri;
}
private URI buildHttpUri()
{
String scheme = useSecureConnection ? "https" : "http";
try {
return new URI(scheme, null, address.getHost(), address.getPort(), null, null, null);
}
catch (URISyntaxException e) {
throw new RuntimeException(e);
}
}
private void initCatalogAndSchema()
throws SQLException
{
String path = uri.getPath();
if (isNullOrEmpty(uri.getPath()) || path.equals("/")) {
return;
}
// remove first slash
if (!path.startsWith("/")) {
throw new SQLException("Path does not start with a slash: " + uri);
}
path = path.substring(1);
List parts = Splitter.on("/").splitToList(path);
// remove last item due to a trailing slash
if (parts.get(parts.size() - 1).isEmpty()) {
parts = parts.subList(0, parts.size() - 1);
}
if (parts.size() > 2) {
throw new SQLException("Invalid path segments in URL: " + uri);
}
if (parts.get(0).isEmpty()) {
throw new SQLException("Catalog name is empty: " + uri);
}
catalog = parts.get(0);
if (parts.size() > 1) {
if (parts.get(1).isEmpty()) {
throw new SQLException("Schema name is empty: " + uri);
}
schema = parts.get(1);
}
}
private static Properties mergeConnectionProperties(URI uri, Properties driverProperties)
throws SQLException
{
Map defaults = ConnectionProperties.getDefaults();
Map urlProperties = parseParameters(uri.getQuery());
Map suppliedProperties = Maps.fromProperties(driverProperties);
for (String key : urlProperties.keySet()) {
if (suppliedProperties.containsKey(key)) {
throw new SQLException(format("Connection property '%s' is both in the URL and an argument", key));
}
}
Properties result = new Properties();
setProperties(result, defaults);
setProperties(result, urlProperties);
setProperties(result, suppliedProperties);
return result;
}
private static void setProperties(Properties properties, Map values)
{
for (Entry entry : values.entrySet()) {
properties.setProperty(entry.getKey(), entry.getValue());
}
}
private static void validateConnectionProperties(Properties connectionProperties)
throws SQLException
{
for (String propertyName : connectionProperties.stringPropertyNames()) {
if (ConnectionProperties.forKey(propertyName) == null) {
throw new SQLException(format("Unrecognized connection property '%s'", propertyName));
}
}
for (ConnectionProperty property : ConnectionProperties.allProperties()) {
property.validate(connectionProperties);
}
}
}
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