Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/server/auth/was/Signature.java @ 4488:5041105d2edd

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Check if response code from GGInA is 200 OK Only parse the GGInA response if the status code is 200 OK. This improves the error message if GGInA is not available and shows the real reason instead of a JDOM error while parsing the response.
author Björn Ricks <bjoern.ricks@intevation.de>
date Wed, 14 Nov 2012 10:36:21 +0100
parents 725470fc57d2
children
rev   line source
2956
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1 package de.intevation.flys.client.server.auth.was;
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2
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3 import java.io.ByteArrayInputStream;
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4 import java.security.cert.Certificate;
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5 import java.security.cert.CertificateException;
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6 import java.security.cert.CertificateFactory;
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7
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8 import org.apache.commons.codec.binary.Base64;
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9 import org.apache.log4j.Logger;
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10 import org.jdom.Element;
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11
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12 public class Signature {
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13
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14 private static Logger logger = Logger.getLogger(Signature.class);
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15
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16 private static final String XML_SIG_DIGEST_SHA1 =
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17 "http://www.w3.org/2000/09/xmldsig#sha1";
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18 private static final String XML_SIG_SIGNATURE_RSA_SHA1 =
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19 "http://www.w3.org/2000/09/xmldsig#rsa-sha1";
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20
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725470fc57d2 Add "Manage themes" button to ChartToolbar and MapToolbar.
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21 private final Element signature;
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22 private Certificate cert;
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23 private byte[] value;
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24 private byte[] digestvalue;
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25 private String reference;
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26
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27 public Signature(Element signature) {
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28 this.signature = signature;
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29 this.parseSignatureInfo();
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30 this.parseSignatureValue();
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31 this.parseCertificate();
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32 }
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33
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34 private void parseSignatureInfo() {
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35 Element signatureinfo = this.signature.getChild("SignedInfo",
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36 Namespaces.XML_SIG_NS);
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37 if (signatureinfo != null) {
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38 Element signaturemethod = signatureinfo.getChild("SignatureMethod",
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39 Namespaces.XML_SIG_NS);
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40 String algorithm = signaturemethod.getAttributeValue("Algorithm");
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41 if (!algorithm.equals(XML_SIG_SIGNATURE_RSA_SHA1)) {
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42 logger.warn("Unkown signature alorithm " + algorithm);
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43 }
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44
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45 // There could be several references in XML-Sig spec but for me it
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46 // doesn't make sense to have more then one in a SAML Assertion
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47 Element reference = signatureinfo.getChild("Reference",
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48 Namespaces.XML_SIG_NS);
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49 // reference must be present but its better to check
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50 if (reference != null) {
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51 String digestvalue = reference.getChildText("DigestValue",
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52 Namespaces.XML_SIG_NS);
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53 String digestmethod = reference.getChildText("DigestMethod",
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54 Namespaces.XML_SIG_NS);
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55 if (!digestmethod.equals(XML_SIG_DIGEST_SHA1)) {
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56 logger.warn("Unknown digest method " + digestmethod);
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57 }
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58 this.digestvalue = Base64.decodeBase64(digestvalue);
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59
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60 String referenceuri = reference.getAttributeValue("URI");
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61 if (referenceuri.startsWith("#")) {
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62 this.reference = referenceuri.substring(1);
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63 }
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64 else {
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65 logger.warn("Unkown reference type " + referenceuri);
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66 this.reference = referenceuri;
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67 }
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68 }
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69 }
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70 }
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71
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72 private void parseSignatureValue() {
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73 String signaturevalue = this.signature.getChildText("SignatureValue",
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74 Namespaces.XML_SIG_NS);
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75 this.value = Base64.decodeBase64(signaturevalue);
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76 }
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77
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78 private void parseCertificate() {
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79 Element keyinfo = this.signature.getChild("KeyInfo",
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80 Namespaces.XML_SIG_NS);
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81 if (keyinfo != null) {
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82 Element data = keyinfo.getChild("X509Data", Namespaces.XML_SIG_NS);
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83 if (data != null) {
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84 String base64cert = data.getChildText("X509Certificate",
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85 Namespaces.XML_SIG_NS);
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86 if (base64cert != null) {
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87 byte[] bytes = Base64.decodeBase64(base64cert);
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88 try {
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89 CertificateFactory cf = CertificateFactory.getInstance(
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90 "X.509");
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91 this.cert = cf.generateCertificate(
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92 new ByteArrayInputStream(bytes));
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93 }
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94 catch(CertificateException e) {
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95 // should never occur
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96 logger.error(e);
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97 }
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98 }
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99 }
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100 }
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101 }
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102
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103 public Certificate getCertificate() {
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104 return this.cert;
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105 }
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106
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107 public byte[] getValue() {
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108 return this.value;
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109 }
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110
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111 public String getReference() {
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112 // In theory there could be several references with digestvalues, ...
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113 return this.reference;
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114 }
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115
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116 public byte[] getDigestValue() {
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117 return this.digestvalue;
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118 }
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119 }
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120 // vim: set si et fileencoding=utf-8 ts=4 sw=4 tw=80:
http://dive4elements.wald.intevation.org