ArtifactorySearch.java
/*
* This file is part of dependency-check-core.
*
* 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.
*
* Copyright (c) 2018 Nicolas Henneaux. All Rights Reserved.
*/
package org.owasp.dependencycheck.data.artifactory;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.Base64;
import java.util.List;
import java.util.UUID;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import javax.annotation.concurrent.ThreadSafe;
import org.owasp.dependencycheck.data.nexus.MavenArtifact;
import org.owasp.dependencycheck.dependency.Dependency;
import org.owasp.dependencycheck.utils.Checksum;
import org.owasp.dependencycheck.utils.InvalidSettingException;
import org.owasp.dependencycheck.utils.Settings;
import org.owasp.dependencycheck.utils.URLConnectionFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.ObjectReader;
/**
* Class of methods to search Artifactory for hashes and determine Maven GAV
* from there.
*
* Data classes copied from JFrog's artifactory-client-java project.
*
* @author nhenneaux
*/
@ThreadSafe
@SuppressWarnings("squid:S2647")
public class ArtifactorySearch {
/**
* Used for logging.
*/
private static final Logger LOGGER = LoggerFactory.getLogger(ArtifactorySearch.class);
/**
* Pattern to match the path returned by the Artifactory AQL API.
*/
private static final Pattern PATH_PATTERN = Pattern.compile("^/(?<groupId>.+)/(?<artifactId>[^/]+)/(?<version>[^/]+)/[^/]+$");
/**
* Extracted duplicateArtifactorySearchIT.java comment.
*/
private static final String WHILE_ACTUAL_IS = " while actual is ";
/**
* The URL for the Central service.
*/
private final String rootURL;
/**
* Whether to use the Proxy when making requests.
*/
private final boolean useProxy;
/**
* The configured settings.
*/
private final Settings settings;
/**
* Search result reader
*/
private final ObjectReader objectReader;
/**
* Creates a NexusSearch for the given repository URL.
*
* @param settings the configured settings
*/
public ArtifactorySearch(Settings settings) {
this.settings = settings;
final String searchUrl = settings.getString(Settings.KEYS.ANALYZER_ARTIFACTORY_URL);
this.rootURL = searchUrl;
LOGGER.debug("Artifactory Search URL {}", searchUrl);
if (null != settings.getString(Settings.KEYS.PROXY_SERVER)) {
boolean useProxySettings = false;
try {
useProxySettings = settings.getBoolean(Settings.KEYS.ANALYZER_ARTIFACTORY_USES_PROXY);
} catch (InvalidSettingException e) {
LOGGER.error("Settings {} is invalid, only, true/false is valid", Settings.KEYS.ANALYZER_ARTIFACTORY_USES_PROXY, e);
}
this.useProxy = useProxySettings;
LOGGER.debug("Using proxy? {}", useProxy);
} else {
useProxy = false;
LOGGER.debug("Not using proxy");
}
objectReader = new ObjectMapper().configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false).readerFor(FileImpl.class);
}
/**
* Searches the configured Central URL for the given hash (MD5, SHA1 and
* SHA256). If the artifact is found, a <code>MavenArtifact</code> is
* populated with the GAV.
*
* @param dependency the dependency for which to search (search is based on
* hashes)
* @return the populated Maven GAV.
* @throws FileNotFoundException if the specified artifact is not found
* @throws IOException if it's unable to connect to the specified repository
*/
public List<MavenArtifact> search(Dependency dependency) throws IOException {
final String sha1sum = dependency.getSha1sum();
final URL url = buildUrl(sha1sum);
final HttpURLConnection conn = connect(url);
final int responseCode = conn.getResponseCode();
if (responseCode == 200) {
return processResponse(dependency, conn);
}
throw new IOException("Could not connect to Artifactory " + url + " (" + responseCode + "): " + conn.getResponseMessage());
}
/**
* Makes an connection to the given URL.
*
* @param url the URL to connect to
* @return the HTTP URL Connection
* @throws IOException thrown if there is an error making the connection
*/
private HttpURLConnection connect(URL url) throws IOException {
LOGGER.debug("Searching Artifactory url {}", url);
// Determine if we need to use a proxy. The rules:
// 1) If the proxy is set, AND the setting is set to true, use the proxy
// 2) Otherwise, don't use the proxy (either the proxy isn't configured,
// or proxy is specifically set to false)
final URLConnectionFactory factory = new URLConnectionFactory(settings);
final HttpURLConnection conn = factory.createHttpURLConnection(url, useProxy);
conn.setDoOutput(true);
conn.addRequestProperty("X-Result-Detail", "info");
final String username = settings.getString(Settings.KEYS.ANALYZER_ARTIFACTORY_API_USERNAME);
final String apiToken = settings.getString(Settings.KEYS.ANALYZER_ARTIFACTORY_API_TOKEN);
if (username != null && apiToken != null) {
final String userpassword = username + ":" + apiToken;
final String encodedAuthorization = Base64.getEncoder().encodeToString(userpassword.getBytes(StandardCharsets.UTF_8));
conn.addRequestProperty("Authorization", "Basic " + encodedAuthorization);
} else {
final String bearerToken = settings.getString(Settings.KEYS.ANALYZER_ARTIFACTORY_BEARER_TOKEN);
if (bearerToken != null) {
conn.addRequestProperty("Authorization", "Bearer " + bearerToken);
}
}
conn.connect();
return conn;
}
/**
* Constructs the URL using the SHA1 checksum.
*
* @param sha1sum the SHA1 checksum
* @return the API URL to search for the given checksum
* @throws MalformedURLException thrown if the URL is malformed
*/
private URL buildUrl(String sha1sum) throws MalformedURLException {
// TODO Investigate why sha256 parameter is not working
// API defined https://www.jfrog.com/confluence/display/RTF/Artifactory+REST+API#ArtifactoryRESTAPI-ChecksumSearch
return new URL(rootURL + "/api/search/checksum?sha1=" + sha1sum);
}
/**
* Process the Artifactory response.
*
* @param dependency the dependency
* @param conn the HTTP URL Connection
* @return a list of the Maven Artifact information
* @throws IOException thrown if there is an I/O error
*/
protected List<MavenArtifact> processResponse(Dependency dependency, HttpURLConnection conn) throws IOException {
final List<MavenArtifact> result = new ArrayList<>();
try (InputStreamReader streamReader = new InputStreamReader(conn.getInputStream(), StandardCharsets.UTF_8);
JsonParser parser = objectReader.getFactory().createParser(streamReader)) {
if (init(parser) && parser.nextToken() == com.fasterxml.jackson.core.JsonToken.START_OBJECT) {
// at least one result
do {
final FileImpl file = objectReader.readValue(parser);
checkHashes(dependency, file.getChecksums());
final Matcher pathMatcher = PATH_PATTERN.matcher(file.getPath());
if (!pathMatcher.matches()) {
throw new IllegalStateException("Cannot extract the Maven information from the path "
+ "retrieved in Artifactory " + file.getPath());
}
final String groupId = pathMatcher.group("groupId").replace('/', '.');
final String artifactId = pathMatcher.group("artifactId");
final String version = pathMatcher.group("version");
result.add(new MavenArtifact(groupId, artifactId, version, file.getDownloadUri(),
MavenArtifact.derivePomUrl(artifactId, version, file.getDownloadUri())));
} while (parser.nextToken() == com.fasterxml.jackson.core.JsonToken.START_OBJECT);
} else {
throw new FileNotFoundException("Artifact " + dependency + " not found in Artifactory");
}
}
return result;
}
protected boolean init(JsonParser parser) throws IOException {
com.fasterxml.jackson.core.JsonToken nextToken = parser.nextToken();
if (nextToken != com.fasterxml.jackson.core.JsonToken.START_OBJECT) {
throw new IOException("Expected " + com.fasterxml.jackson.core.JsonToken.START_OBJECT + ", got " + nextToken);
}
do {
nextToken = parser.nextToken();
if (nextToken == null) {
break;
}
if (nextToken.isStructStart()) {
if (nextToken == com.fasterxml.jackson.core.JsonToken.START_ARRAY && "results".equals(parser.currentName())) {
return true;
} else {
parser.skipChildren();
}
}
} while (true);
return false;
}
/**
* Validates the hashes of the dependency.
*
* @param dependency the dependency
* @param checksums the collection of checksums (md5, sha1, sha256)
* @throws FileNotFoundException thrown if one of the checksums does not
* match
*/
private void checkHashes(Dependency dependency, ChecksumsImpl checksums) throws FileNotFoundException {
final String md5sum = dependency.getMd5sum();
if (!checksums.getMd5().equals(md5sum)) {
throw new FileNotFoundException("Artifact found by API is not matching the md5 "
+ "of the artifact (repository hash is " + checksums.getMd5() + WHILE_ACTUAL_IS + md5sum + ") !");
}
final String sha1sum = dependency.getSha1sum();
if (!checksums.getSha1().equals(sha1sum)) {
throw new FileNotFoundException("Artifact found by API is not matching the SHA1 "
+ "of the artifact (repository hash is " + checksums.getSha1() + WHILE_ACTUAL_IS + sha1sum + ") !");
}
final String sha256sum = dependency.getSha256sum();
if (checksums.getSha256() != null && !checksums.getSha256().equals(sha256sum)) {
throw new FileNotFoundException("Artifact found by API is not matching the SHA-256 "
+ "of the artifact (repository hash is " + checksums.getSha256() + WHILE_ACTUAL_IS + sha256sum + ") !");
}
}
/**
* Performs a pre-flight request to ensure the Artifactory service is
* reachable.
*
* @return <code>true</code> if Artifactory could be reached; otherwise
* <code>false</code>.
*/
public boolean preflightRequest() {
try {
final URL url = buildUrl(Checksum.getSHA1Checksum(UUID.randomUUID().toString()));
final HttpURLConnection connection = connect(url);
if (connection.getResponseCode() != 200) {
LOGGER.warn("Expected 200 result from Artifactory ({}), got {}", url, connection.getResponseCode());
return false;
}
return true;
} catch (IOException e) {
LOGGER.error("Cannot connect to Artifactory", e);
return false;
}
}
}