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/**
* @author ETSI / STF481 / Yann Garcia
* @version $URL$
* $Id$
*/
package org.etsi.certificates.io;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.etsi.certificates.Helpers;
import org.etsi.common.ByteHelper;
public class CertificatesIO implements ICertificatesIO {
/**
* Regex pattern to extract signing private key
*/
private static final String SIGNING_PRIVATE_KEY_PATTERN = "^SigningPrivate key\\s*=\\s*([A-Fa-f0-9]+)$";
/**
* Regex pattern to extract encrypt private key
*/
private static final String ENCRYPT_PRIVATE_KEY_PATTERN = "^EncryptPrivate key\\s*=\\s*([A-Fa-f0-9]+)$";
/**
* Regex pattern to extract AA certificate
*/
private static final String CERT_AA_PATTERN = "^AUTHORIZATION_AUTHORITY.dump\\s*=\\s*([A-Fa-f0-9]+)$";
/**
* Regex pattern to extract AT certificate
*/
private static final String CERT_AT_PATTERN = "^AUTHORIZATION_TICKET.dump\\s*=\\s*([A-Fa-f0-9]+)$";
/**
* Regex compiler to extract signing private key
*/
private Pattern signingPrivateKeyPattern = Pattern.compile(SIGNING_PRIVATE_KEY_PATTERN, Pattern.MULTILINE);
/**
* Regex compiler to extract encrypt private key
*/
private Pattern encryptPrivateKeyPattern = Pattern.compile(ENCRYPT_PRIVATE_KEY_PATTERN, Pattern.MULTILINE);
/**
* Regex compiler to extract AA certificate
*/
private Pattern certAaPattern = Pattern.compile(CERT_AA_PATTERN, Pattern.MULTILINE);
/**
* Regex compiler to extract AT certificate
*/
private Pattern certAtPattern = Pattern.compile(CERT_AT_PATTERN, Pattern.MULTILINE);
/**
* Full path to access certificate files
*/
private String _fullPath;
/**
* Memory cache for the certificates
*/
private Map<String, byte[]> _cachedCertificates;
/**
* Memory cache for the signing private keys
*/
private Map<String, byte[]> _cachedSigningPrivateKey;
/**
* Memory cache for the encrypt private keys
*/
private Map<String, byte[]> _cachedEncryptPrivateKey;
/**
* Default constructor
*/
public CertificatesIO() {
_cachedCertificates = new ConcurrentHashMap<String, byte[]>();
_cachedSigningPrivateKey = new ConcurrentHashMap<String, byte[]>();
_cachedEncryptPrivateKey = new ConcurrentHashMap<String, byte[]>();
} // End of Constructor
/**
* @desc Load in memory cache the certificates available in the specified directory
* @param rootDirectory Root directory to access to the certificates identified by the certificate ID
* @param configId A configuration identifier
* @return true on success, false otherwise
*/
@Override
public boolean loadCertificates(final String rootDirectory, final String configId) { // E.g. <rootDirectory path>, cfg01
// Initialise the memory caches
_cachedCertificates.clear();
_cachedSigningPrivateKey.clear();
_cachedEncryptPrivateKey.clear();
// Build full path
if ((rootDirectory == null) || (rootDirectory.length() == 0)) {
_fullPath = System.getProperty("user.dir").replace("\\", "/");
} else {
_fullPath = rootDirectory.replace("\\", "/");
}
if (!_fullPath.endsWith("/")) {
_fullPath += "/";
}
if ((configId != null) && (configId.length() != 0)) {
_fullPath += configId.replace('.', '/');
}
_fullPath = _fullPath.toLowerCase();
// Check the path
File path = new File(_fullPath);
if (!path.exists()) {
System.err.println("CertificatesIO.readCertificate: path '" + _fullPath + "' does not found");
return false;
}
return loadMemoryCache(path); // Load certificates and keys and return
}
/**
* @desc Unload from memory cache the certificates available
* @return true on success, false otherwise
*/
@Override
public boolean unloadCertificates() {
_fullPath = null;
_cachedSigningPrivateKey.clear();
_cachedEncryptPrivateKey.clear();
return true;
}
/**
* @desc Read the specified certificate
* @param certificateId the certificate identifier
* @param certificate the expected certificate
* @return true on success, false otherwise
*/
@Override
public boolean readCertificate(final String key, final ByteArrayOutputStream certificate) {
// Sanity check
if (!_cachedCertificates.containsKey(key)) {
System.err.println("CertificatesIO.readCertificate: key '" + key + "' not found");
return false;
}
try {
certificate.write(_cachedCertificates.get(key));
return true;
} catch (IOException e) {
e.printStackTrace();
}
return false;
}
/**
* @desc Read the private keys for the specified certificate
* @param keysId the keys identifier
* @param signingPrivateKey the signing private key
* @param encryptPrivateKey the encrypt private key
* @return true on success, false otherwise
*/
@Override
public boolean readPrivateKeys(final String key, final ByteArrayOutputStream signingPrivateKey, final ByteArrayOutputStream encryptPrivateKey) {
// Sanity check
if (!_cachedSigningPrivateKey.containsKey(key) || !_cachedEncryptPrivateKey.containsKey(key)) {
System.err.println("CertificatesIO.readPrivateKeys: key '" + key + "' not found");
return false;
}
try {
signingPrivateKey.write(_cachedSigningPrivateKey.get(key));
encryptPrivateKey.write(_cachedEncryptPrivateKey.get(key));
return true;
} catch (IOException e) {
e.printStackTrace();
}
return false;
}
private boolean loadMemoryCache(final File path) { // E.g. <path>/ta_config_a.txt
// Retrieve the list of the files in the _fullpath
try {
List<File> files = Helpers.getInstance().getFileListing(path);
// Create the memory cache
for (File file : files) {
addItem(file);
} // End of 'for' statement
return true;
} catch (IOException e) {
e.printStackTrace();
}
return false;
}
private void addItem(final File file) throws FileNotFoundException, IOException {
String key = file.getName().substring(0, file.getName().indexOf('.')).toUpperCase();
if (!_cachedCertificates.containsKey(key)) {
FileInputStream fs = new FileInputStream(file.getCanonicalPath());
byte bytes[] = new byte[(int) file.length()];
fs.read(bytes);
String content = new String(bytes);
// Extract SigningPrivateKey. Key identifier is key.PRIVATE_KEYS
// E.g. SigningPrivate key=68E45C8BBE0ABFA80188E62D082D7A1E5FD4D637D99A5826781280F3865B5819
Matcher matcher = signingPrivateKeyPattern.matcher(content);
if (matcher.find()) {
// System.out.println("CertificatesIO.addItem: Add key '" + key + ".PRIVATE_KEYS" + "'");
_cachedSigningPrivateKey.put(key + ".PRIVATE_KEYS", ByteHelper.hexStringToByteArray(matcher.group(1)));
}
// Extract EncryptPrivate. Key identifier is key.PRIVATE_KEYS
// E.g. EncryptPrivate key=00B65233550BE5A9866CF871D7712691CC47532A08C620D20579FB02BEFA3D1C5F
matcher = encryptPrivateKeyPattern.matcher(content);
if (matcher.find()) {
// System.out.println("CertificatesIO.addItem: Add key '" + key + ".PRIVATE_KEYS" + "'");
_cachedEncryptPrivateKey.put(key + ".PRIVATE_KEYS", ByteHelper.hexStringToByteArray(matcher.group(1)));
}
// Extract AUTHORIZATION_AUTHORITY.dump. Key identifier is key.AA_CERT
// E.g. AUTHORIZATION_AUTHORITY.dump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
matcher = certAaPattern.matcher(content);
if (matcher.find()) {
// System.out.println("CertificatesIO.addItem: Add key '" + key + ".AA_CERT" + "'");
_cachedCertificates.put(key + ".AA_CERT", ByteHelper.hexStringToByteArray(matcher.group(1)));
}
// Extract AUTHORIZATION_TICKET.dump. Key identifier is key.AT_CERT
// E.g. AUTHORIZATION_TICKET.dump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
matcher = certAtPattern.matcher(content);
if (matcher.find()) {
// System.out.println("CertificatesIO.addItem: Add key '" + key + ".AT_CERT" + "'");
_cachedCertificates.put(key + ".AT_CERT", ByteHelper.hexStringToByteArray(matcher.group(1)));
}
} // else, ignore it
}
} // End of class CertificatesIO