package fr.openwide.core.commons.util.validator; import java.util.regex.Matcher; import java.util.regex.Pattern; import org.apache.commons.validator.routines.UrlValidator; import com.google.common.base.Predicate; import fr.openwide.core.commons.util.functional.SerializablePredicate; /** * An {@link UrlValidator} relying on {@link AnyTldDomainAndPortValidator} for domain and port validation. */ public class AnyTldUrlValidator extends UrlValidator implements SerializablePredicate<String> { private static final long serialVersionUID = 5254830905190414225L; private static final AnyTldUrlValidator INSTANCE = new AnyTldUrlValidator(); /** Copy from UrlValidator. */ private static final String URL_REGEX = "^(([^:/?#]+):)?(//([^/?#]*))?([^?#]*)(\\?([^#]*))?(#(.*))?"; /** Copy from UrlValidator. */ private static final Pattern URL_PATTERN = Pattern.compile(URL_REGEX); /** * Schema/Protocol (ie. http:, ftp:, file:, etc). * <p>Copy from UrlValidator. */ private static final int PARSE_URL_SCHEME = 2; /** * Includes hostname/ip and port number. * <p>Copy from UrlValidator. */ private static final int PARSE_URL_AUTHORITY = 4; /** Copy from UrlValidator. */ private static final int PARSE_URL_PATH = 5; /** Copy from UrlValidator. */ private static final int PARSE_URL_QUERY = 7; /** Copy from UrlValidator. */ private static final int PARSE_URL_FRAGMENT = 9; public static AnyTldUrlValidator getInstance() { return INSTANCE; } public AnyTldUrlValidator() { super(AnyTldDomainAndPortValidator.getInstance(), 0L); } public AnyTldUrlValidator(long options) { super(AnyTldDomainAndPortValidator.getInstance(), options); } public AnyTldUrlValidator(String[] schemes, long options) { super(schemes, AnyTldDomainAndPortValidator.getInstance(), options); } public AnyTldUrlValidator(String[] schemes) { super(schemes, AnyTldDomainAndPortValidator.getInstance(), 0L); } /** * @deprecated Provided only to satisfy the {@link Predicate} interface; use * {@link #isValid(String)} instead. */ @Deprecated @Override public boolean apply(String input) { return isValid(input); } /** * Copy from {@link UrlValidator} to avoid enforcing ascii-only characters, especially on the domain name. */ @Override public boolean isValid(String value) { if (value == null) { return false; } // Do NOT check ASCII. Domain name (in particular) may include non-ascii parameters. // if (!ASCII_PATTERN.matcher(value).matches()) { // return false; // } // Check the whole url address structure Matcher urlMatcher = URL_PATTERN.matcher(value); if (!urlMatcher.matches()) { return false; } String scheme = urlMatcher.group(PARSE_URL_SCHEME); if (!isValidScheme(scheme)) { return false; } String authority = urlMatcher.group(PARSE_URL_AUTHORITY); if ("file".equals(scheme) && "".equals(authority)) { // NOSONAR // Special case - file: allows an empty authority } else { // Validate the authority if (!isValidAuthority(authority)) { return false; } } if (!isValidPath(urlMatcher.group(PARSE_URL_PATH))) { return false; } if (!isValidQuery(urlMatcher.group(PARSE_URL_QUERY))) { return false; } if (!isValidFragment(urlMatcher.group(PARSE_URL_FRAGMENT))) { return false; } return true; } }