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// --- BEGIN COPYRIGHT BLOCK ---
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; version 2 of the License.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
// (C) 2007 Red Hat, Inc.
// All rights reserved.
// --- END COPYRIGHT BLOCK ---
package com.netscape.cmstools;
import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.security.cert.CRLException;
import java.security.cert.CertificateException;
import java.util.Locale;
import netscape.security.util.CrlPrettyPrint;
import netscape.security.x509.DeltaCRLIndicatorExtension;
import netscape.security.x509.HoldInstructionExtension;
import netscape.security.x509.InvalidityDateExtension;
import netscape.security.x509.IssuingDistributionPointExtension;
import netscape.security.x509.OIDMap;
import netscape.security.x509.X509CRLImpl;
import netscape.security.x509.X509ExtensionException;
import com.netscape.cmsutil.util.Utils;
/**
* The PrettyPrintCrl class is a utility program designed to "pretty print"
* a CRL. It assumes that the name of a data file is passed to the
* program via the command line, and that the contents contain a CRL
* encoded in an ASCII BASE 64 format. Note that the data file may contain
* an optional "-----BEGIN" header and/or an optional "-----END" trailer.
*
* <P>
* The program may be invoked as follows:
*
* <PRE>
*
* PrettyPrintCrl <input filename> [output filename]
*
* NOTE: <input filename> must contain an ASCII
* BASE 64 encoded CRL
*
* <output filename> contains a CRL displayed
* in a "pretty print" ASCII format
* </PRE>
*
* @version $Revision$, $Date$
*/
public class PrettyPrintCrl {
// Define constants
public static final int ARGC = 2;
public static final String HEADER = "-----BEGIN";
public static final String TRAILER = "-----END";
public static void main(String argv[]) {
BufferedReader inputCrl = null;
String encodedBASE64CrlChunk = "";
StringBuffer encodedBASE64Crl = new StringBuffer();
byte decodedBASE64Crl[] = null;
X509CRLImpl crl = null;
Locale aLocale = null;
CrlPrettyPrint CrlDetails = null;
String pp;
FileOutputStream outputCrl = null;
// (1) Check that at least one argument was submitted to the program
if ((argv.length < 1) || (argv.length > ARGC)) {
System.out.println("Usage: PrettyPrintCrl " +
"<input filename> " +
"[output filename]");
return;
}
try {
OIDMap.addAttribute(DeltaCRLIndicatorExtension.class.getName(),
DeltaCRLIndicatorExtension.OID,
DeltaCRLIndicatorExtension.NAME);
} catch (CertificateException e) {
}
try {
OIDMap.addAttribute(HoldInstructionExtension.class.getName(),
HoldInstructionExtension.OID,
HoldInstructionExtension.NAME);
} catch (CertificateException e) {
}
try {
OIDMap.addAttribute(InvalidityDateExtension.class.getName(),
InvalidityDateExtension.OID,
InvalidityDateExtension.NAME);
} catch (CertificateException e) {
}
try {
OIDMap.addAttribute(IssuingDistributionPointExtension.class.getName(),
IssuingDistributionPointExtension.OID,
IssuingDistributionPointExtension.NAME);
} catch (CertificateException e) {
}
// (2) Create a DataInputStream() object to the BASE 64
// encoded CRL contained within the file
// specified on the command line
try {
inputCrl = new BufferedReader(new InputStreamReader(
new BufferedInputStream(
new FileInputStream(
argv[0]))));
} catch (FileNotFoundException e) {
System.out.println("PrettyPrintCrl(): can''t find file " +
argv[0] + ":\n" + e);
return;
}
// (3) Read the entire contents of the specified BASE 64 encoded
// CRL into a String() object throwing away any
// headers beginning with HEADER and any trailers beginning
// with TRAILER
try {
while ((encodedBASE64CrlChunk = inputCrl.readLine()) != null) {
if (!(encodedBASE64CrlChunk.startsWith(HEADER)) &&
!(encodedBASE64CrlChunk.startsWith(TRAILER))) {
encodedBASE64Crl.append(encodedBASE64CrlChunk.trim());
}
}
} catch (IOException e) {
System.out.println("PrettyPrintCrl(): Unexpected BASE64 " +
"encoded error encountered in readLine():\n" +
e);
}
// (4) Close the DataInputStream() object
try {
inputCrl.close();
} catch (IOException e) {
System.out.println("PrettyPrintCrl(): Unexpected BASE64 " +
"encoded error encountered in close():\n" + e);
}
// (5) Decode the ASCII BASE 64 CRL enclosed in the
// String() object into a BINARY BASE 64 byte[] object
decodedBASE64Crl = Utils.base64decode(encodedBASE64Crl.toString());
// (6) Create an X509CRLImpl() object from the BINARY BASE 64
// byte[] object
try {
crl = new X509CRLImpl(decodedBASE64Crl);
} catch (CRLException e) {
System.out.println("PrettyPrintCrl(): Error encountered " +
"on parsing and initialization errors:\n" + e);
} catch (X509ExtensionException e) {
System.out.println("PrettyPrintCrl(): Error encountered " +
"on parsing and initialization errors:\n" + e);
}
// (7) For this utility, always specify the default Locale
aLocale = Locale.getDefault();
// (8) Create a CrlPrettyPrint() object
CrlDetails = new CrlPrettyPrint(crl);
// (9) Convert the CrlPrettyPrint() object into a String() object
pp = CrlDetails.toString(aLocale);
// (10) Finally, "pretty print" the actual CRL to the console
// unless an output file has been specified
if (argv.length != ARGC) {
System.out.println(pp);
} else {
try {
outputCrl = new FileOutputStream(argv[1]);
} catch (IOException e) {
System.out.println("PrettyPrintCrl(): unable to open file " +
argv[1] + " for writing:\n" + e);
return;
}
try {
outputCrl.write(pp.getBytes());
} catch (IOException e) {
System.out.println("PrettyPrintCrl(): I/O error " +
"encountered during write():\n" +
e);
}
try {
outputCrl.close();
} catch (IOException e) {
System.out.println("PrettyPrintCrl(): Unexpected error " +
"encountered while attempting to close() " +
argv[1] + ":\n" + e);
}
}
}
}
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