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package org.sufficientlysecure.keychain.pgp;
import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/** An abstract KeyRing.
*
* This is an abstract class for all KeyRing constructs. It serves as a common
* denominator of available information, two implementations wrapping the same
* keyring should in all cases agree on the output of all methods described
* here.
*
* @see org.sufficientlysecure.keychain.pgp.WrappedKeyRing
* @see org.sufficientlysecure.keychain.provider.CachedPublicKeyRing
*
*/
public abstract class KeyRing {
abstract public long getMasterKeyId() throws PgpGeneralException;
abstract public String getPrimaryUserId() throws PgpGeneralException;
public String[] getSplitPrimaryUserId() throws PgpGeneralException {
return splitUserId(getPrimaryUserId());
}
abstract public boolean isRevoked() throws PgpGeneralException;
abstract public boolean canCertify() throws PgpGeneralException;
abstract public long getEncryptId() throws PgpGeneralException;
abstract public boolean hasEncrypt() throws PgpGeneralException;
abstract public long getSignId() throws PgpGeneralException;
abstract public boolean hasSign() throws PgpGeneralException;
abstract public int getVerified() throws PgpGeneralException;
private static final Pattern USER_ID_PATTERN = Pattern.compile("^(.*?)(?: \\((.*)\\))?(?: <(.*)>)?$");
/**
* Splits userId string into naming part, email part, and comment part
*
* @param userId
* @return array with naming (0), email (1), comment (2)
*/
public static String[] splitUserId(String userId) {
String[] result = new String[]{null, null, null};
if (userId == null || userId.equals("")) {
return result;
}
/*
* User ID matching:
* http://fiddle.re/t4p6f
*
* test cases:
* "Max Mustermann (this is a comment) <max@example.com>"
* "Max Mustermann <max@example.com>"
* "Max Mustermann (this is a comment)"
* "Max Mustermann [this is nothing]"
*/
Matcher matcher = USER_ID_PATTERN.matcher(userId);
if (matcher.matches()) {
result[0] = matcher.group(1);
result[1] = matcher.group(3);
result[2] = matcher.group(2);
}
return result;
}
}
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