[8780cbec] | 1 | package edu.stanford.rt.credential; |
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| 2 | |
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| 3 | //imports Apache Xerces API |
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| 4 | import org.apache.xerces.parsers.DOMParser; |
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| 5 | |
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| 6 | import org.xml.sax.InputSource; |
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| 7 | import org.w3c.dom.*; |
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| 8 | |
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| 9 | import java.util.*; |
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| 10 | import java.io.*; |
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| 11 | |
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| 12 | import edu.stanford.rt.parser.RTParser; |
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| 13 | import edu.stanford.rt.util.*; |
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| 14 | /** |
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| 15 | * @author Ninghui Li, Sandra Qiu <br> |
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| 16 | * |
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| 17 | * RTContext contains the info about <code>ApplicationDomainSecification</code>s and |
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| 18 | * <code>Principal</code>s in the system. |
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| 19 | */ |
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| 20 | public class RTContext |
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| 21 | { |
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| 22 | /** |
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| 23 | * Index for <code>ApplicationDomain</code> objects.<br> |
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| 24 | * |
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| 25 | * Key: <code>HashID</code> <br> |
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| 26 | * Value: <code>ApplicationDomain</code> |
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| 27 | */ |
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| 28 | private HashMap applicationDomains; |
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| 29 | |
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| 30 | /** |
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| 31 | * Index for <code>Principal</code> objects.<br> |
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| 32 | * |
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| 33 | * Key: <code>PublicKeyPrincipal</code> <br> |
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| 34 | * Value: <code>PublicKeyPrincipalInfo</code> |
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| 35 | */ |
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| 36 | private HashMap principals; |
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| 37 | |
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| 38 | /** |
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| 39 | * The built-in system domain. |
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| 40 | */ |
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| 41 | private ApplicationDomain systemDomain; |
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| 42 | |
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| 43 | /** |
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| 44 | * Constructor for RTContext. |
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| 45 | */ |
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| 46 | public RTContext(RTParser rtParser) throws Exception |
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| 47 | { |
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| 48 | this.applicationDomains = new HashMap(); |
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| 49 | this.principals = new HashMap(); |
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| 50 | // others need to call parseSystemDomain(InputStream). |
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| 51 | this.systemDomain = rtParser.createSystemDomain(); |
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| 52 | } |
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| 53 | |
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| 54 | /** |
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| 55 | * Method getSystemDomain. |
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| 56 | * @return ApplicationDomain |
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| 57 | */ |
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| 58 | public ApplicationDomain getSystemDomain() |
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| 59 | { |
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| 60 | return systemDomain; |
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| 61 | } |
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| 62 | |
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| 63 | /** |
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| 64 | * Method getApplicationDomain. |
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| 65 | * @param id |
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| 66 | * @return ApplicationDomain |
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| 67 | */ |
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| 68 | public ApplicationDomain getApplicationDomain(String id) |
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| 69 | { |
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| 70 | return getApplicationDomain( |
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| 71 | new HashID(HashID.APPLICATION_DOMAIN, id)); |
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| 72 | } |
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| 73 | |
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| 74 | /** |
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| 75 | * Method getApplicationDomain. |
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| 76 | * @param id |
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| 77 | * @return ApplicationDomain |
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| 78 | */ |
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| 79 | public ApplicationDomain getApplicationDomain(HashID id) |
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| 80 | { |
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| 81 | RTUtil.debugInfo("RTContex.getApplicationDomain() .... "); |
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| 82 | RTUtil.debugInfo(" id = " + id.toString()); |
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| 83 | return (ApplicationDomain) applicationDomains.get(id); |
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| 84 | } |
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| 85 | |
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| 86 | /** |
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| 87 | * Method addApplicationDomain. |
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| 88 | * @param id |
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| 89 | * @param appDomain |
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| 90 | * @throws DomainSpecException |
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| 91 | */ |
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| 92 | public synchronized void addApplicationDomain( |
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| 93 | HashID id, |
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| 94 | ApplicationDomain appDomain) |
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| 95 | throws DomainSpecException |
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| 96 | { |
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| 97 | // RTUtil.debugInfo("RTContex.addApplicationDomain() .... "); |
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| 98 | // RTUtil.debugInfo(" id = " + id.toString()); |
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| 99 | // RTUtil.debugInfo("&&&&& "); |
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| 100 | // RTUtil.debugInfo(appDomain.toString(" ")); |
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| 101 | // RTUtil.debugInfo("&&&&& "); |
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| 102 | |
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| 103 | if (this.applicationDomains.get(id) != null) |
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| 104 | throw new DomainSpecException("Duplicated domains in CredentialStore."); |
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| 105 | this.applicationDomains.put(id, appDomain); |
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| 106 | } |
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| 107 | |
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| 108 | /** |
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| 109 | * Method getPrincipal. |
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| 110 | * @param id |
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| 111 | * @return PublicKeyPrincipalInfo |
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| 112 | */ |
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| 113 | public PublicKeyPrincipalInfo getPrincipal(PublicKeyPrincipal id) |
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| 114 | { |
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| 115 | return (PublicKeyPrincipalInfo) principals.get(id); |
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| 116 | } |
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| 117 | |
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| 118 | /** |
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| 119 | * Method addPrincipals. |
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| 120 | * @param id |
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| 121 | * the hash value of the principal |
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| 122 | * @param principal |
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| 123 | * the public key info of the principal |
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| 124 | * @throws DomainSpecException |
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| 125 | */ |
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| 126 | public synchronized void addPrincipal( |
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| 127 | PublicKeyPrincipal id, |
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| 128 | PublicKeyPrincipalInfo principal) |
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| 129 | throws DomainSpecException |
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| 130 | { |
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| 131 | if (this.principals.get(id) != null) |
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| 132 | throw new DomainSpecException("Duplicated"); |
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| 133 | this.principals.put(id, principal); |
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| 134 | } |
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| 135 | /** |
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| 136 | * Method hasDomainWithID. |
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| 137 | * checks if there is an ApplicationDomain object with given hash id. |
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| 138 | * @param idref |
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| 139 | * @return boolean |
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| 140 | */ |
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| 141 | public boolean hasDomainWithID(String idref) |
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| 142 | { |
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| 143 | boolean exists = true; |
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| 144 | if (getApplicationDomain(idref) == null) |
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| 145 | exists = false; |
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| 146 | return exists; |
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| 147 | } |
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| 148 | |
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| 149 | public String toString(String indent) |
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| 150 | { |
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| 151 | StringBuffer sb = new StringBuffer(); |
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| 152 | String thisIndent = indent + " "; |
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| 153 | |
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| 154 | sb.append( |
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| 155 | "********** RTContext: **********\n\n"); |
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| 156 | sb.append(thisIndent).append("System Domain: \n"); |
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| 157 | sb.append(systemDomain.toString(thisIndent)); |
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| 158 | |
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| 159 | sb.append(thisIndent).append("Imported Domains: \n"); |
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| 160 | Set entries = applicationDomains.entrySet(); |
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| 161 | Iterator it = entries.iterator(); |
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| 162 | while (it.hasNext()) |
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| 163 | { |
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| 164 | Map.Entry entry = (Map.Entry) it.next(); |
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| 165 | ApplicationDomain domain = |
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| 166 | (ApplicationDomain) entry.getValue(); |
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| 167 | sb.append(domain.toString(thisIndent)); |
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| 168 | sb.append("\n"); |
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| 169 | } |
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| 170 | |
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| 171 | sb.append(thisIndent).append("Principals: \n"); |
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| 172 | entries = principals.entrySet(); |
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| 173 | it = entries.iterator(); |
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| 174 | while (it.hasNext()) |
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| 175 | { |
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| 176 | Map.Entry entry = (Map.Entry) it.next(); |
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| 177 | PublicKeyPrincipalInfo principal = |
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| 178 | (PublicKeyPrincipalInfo) entry.getValue(); |
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| 179 | sb.append(principal.toString(thisIndent)); |
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| 180 | sb.append("\n"); |
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| 181 | } |
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| 182 | |
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| 183 | return sb.toString(); |
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| 184 | } |
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| 185 | } |
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