/**
* Implements the CFML Function hash
*/
package railo.runtime.functions.string;
import java.security.MessageDigest;
import railo.commons.lang.MD5Legacy;
import railo.commons.lang.StringUtil;
import railo.runtime.PageContext;
import railo.runtime.config.Config;
import railo.runtime.exp.PageException;
import railo.runtime.ext.function.Function;
import railo.runtime.op.Caster;
public final class Hash40 implements Function {
// function for old code in ra files calling this function
public static String call(PageContext pc, String input) throws PageException {
return invoke( pc.getConfig(), input, null, null, 1 );
}
public static String call(PageContext pc , String input, String algorithm) throws PageException {
return invoke( pc.getConfig(), input, algorithm, null, 1 );
}
public static String call(PageContext pc , String input, String algorithm, String encoding) throws PageException {
return invoke( pc.getConfig(), input, algorithm, encoding, 1 );
}
//////
public static String call(PageContext pc, Object input) throws PageException {
return invoke( pc.getConfig(), input, null, null, 1 );
}
public static String call(PageContext pc , Object input, String algorithm) throws PageException {
return invoke( pc.getConfig(), input, algorithm, null, 1 );
}
public static String call(PageContext pc , Object input, String algorithm, String encoding) throws PageException {
return invoke( pc.getConfig(), input, algorithm, encoding, 1 );
}
public static String call(PageContext pc , Object input, String algorithm, String encoding, double numIterations) throws PageException {
return invoke( pc.getConfig(), input, algorithm, encoding, (int)numIterations );
}
/*/ this method signature was called from ConfigWebAdmin.createUUID(), comment this comment to enable
public synchronized static String invoke(Config config, Object input, String algorithm, String encoding) throws PageException {
return invoke(config, input, algorithm, encoding, 1);
} //*/
public static String invoke(Config config, Object input, String algorithm, String encoding, int numIterations) throws PageException {
if(StringUtil.isEmpty(algorithm))algorithm="md5";
else algorithm=algorithm.trim().toLowerCase();
if(StringUtil.isEmpty(encoding))encoding=config.getWebCharset();
boolean isDefaultAlgo = numIterations == 1 && ("md5".equals(algorithm) || "cfmx_compat".equals(algorithm));
byte[] arrBytes = null;
try {
if(input instanceof byte[]) {
arrBytes = (byte[])input;
if(isDefaultAlgo) return MD5Legacy.getDigestAsString( arrBytes ).toUpperCase();
}
else {
String string = Caster.toString(input);
if (isDefaultAlgo) return MD5Legacy.getDigestAsString( string ).toUpperCase();
arrBytes = string.getBytes( encoding );
}
MessageDigest md=MessageDigest.getInstance(algorithm);
md.reset();
for(int i=0; i<numIterations; i++)
md.update(arrBytes);
return MD5Legacy.stringify( md.digest() ).toUpperCase();
}
catch (Throwable t) {
throw Caster.toPageException(t);
}
}
}