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package org.mule.module.acegi.filters.http; |
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import org.mule.api.MuleEvent; |
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import org.mule.api.MuleMessage; |
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import org.mule.api.config.MuleProperties; |
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import org.mule.api.lifecycle.InitialisationException; |
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import org.mule.api.security.Authentication; |
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import org.mule.api.security.SecurityException; |
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import org.mule.api.security.SecurityProviderNotFoundException; |
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import org.mule.api.security.SecurityContext; |
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import org.mule.api.security.UnauthorisedException; |
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import org.mule.api.security.UnknownAuthenticationTypeException; |
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import org.mule.api.security.UnsupportedAuthenticationSchemeException; |
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import org.mule.config.i18n.CoreMessages; |
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import org.mule.module.acegi.AcegiAuthenticationAdapter; |
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import org.mule.module.acegi.i18n.AcegiMessages; |
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import org.mule.security.AbstractEndpointSecurityFilter; |
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import org.mule.transport.http.HttpConnector; |
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import org.mule.transport.http.HttpConstants; |
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import org.acegisecurity.AuthenticationException; |
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import org.acegisecurity.providers.UsernamePasswordAuthenticationToken; |
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import org.apache.commons.codec.binary.Base64; |
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import org.apache.commons.logging.Log; |
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import org.apache.commons.logging.LogFactory; |
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public class HttpBasicAuthenticationFilter extends AbstractEndpointSecurityFilter |
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{ |
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45 | 2 | protected static final Log logger = LogFactory.getLog(HttpBasicAuthenticationFilter.class); |
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private String realm; |
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49 | 14 | private boolean realmRequired = true; |
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public HttpBasicAuthenticationFilter() |
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{ |
53 | 14 | super(); |
54 | 14 | } |
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public HttpBasicAuthenticationFilter(String realm) |
57 | 0 | { |
58 | 0 | this.realm = realm; |
59 | 0 | } |
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protected void doInitialise() throws InitialisationException |
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{ |
63 | 14 | if (realm == null) |
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{ |
65 | 0 | if (isRealmRequired()) |
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{ |
67 | 0 | throw new InitialisationException(AcegiMessages.authRealmMustBeSetOnFilter(), this); |
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} |
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else |
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{ |
71 | 0 | logger.warn("There is no security realm set, using default: null"); |
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} |
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} |
74 | 14 | } |
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public String getRealm() |
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{ |
78 | 0 | return realm; |
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} |
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public void setRealm(String realm) |
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{ |
83 | 14 | this.realm = realm; |
84 | 14 | } |
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public boolean isRealmRequired() |
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{ |
88 | 0 | return realmRequired; |
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} |
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public void setRealmRequired(boolean realmRequired) |
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{ |
93 | 0 | this.realmRequired = realmRequired; |
94 | 0 | } |
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public void authenticateInbound(MuleEvent event) |
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throws SecurityException, SecurityProviderNotFoundException, UnknownAuthenticationTypeException |
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{ |
106 | 22 | String header = event.getMessage().getStringProperty(HttpConstants.HEADER_AUTHORIZATION, null); |
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108 | 22 | if (logger.isDebugEnabled()) |
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{ |
110 | 0 | logger.debug("Authorization header: " + header); |
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} |
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113 | 22 | if ((header != null) && header.startsWith("Basic ")) |
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{ |
115 | 12 | String base64Token = header.substring(6); |
116 | 12 | String token = new String(Base64.decodeBase64(base64Token.getBytes())); |
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118 | 12 | String username = ""; |
119 | 12 | String password = ""; |
120 | 12 | int delim = token.indexOf(":"); |
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122 | 12 | if (delim != -1) |
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{ |
124 | 12 | username = token.substring(0, delim); |
125 | 12 | password = token.substring(delim + 1); |
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} |
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128 | 12 | UsernamePasswordAuthenticationToken authRequest = new UsernamePasswordAuthenticationToken( |
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username, password); |
130 | 12 | authRequest.setDetails(event.getMessage().getProperty(MuleProperties.MULE_ENDPOINT_PROPERTY)); |
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Authentication authResult; |
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134 | 12 | Authentication umoAuthentication = new AcegiAuthenticationAdapter(authRequest); |
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try |
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{ |
138 | 12 | authResult = getSecurityManager().authenticate(umoAuthentication); |
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} |
140 | 4 | catch (AuthenticationException e) |
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{ |
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143 | 4 | if (logger.isDebugEnabled()) |
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{ |
145 | 0 | logger.debug("Authentication request for user: " + username + " failed: " + e.toString()); |
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} |
147 | 4 | setUnauthenticated(event); |
148 | 4 | throw new UnauthorisedException(CoreMessages.authFailedForUser(username), e); |
149 | 8 | } |
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152 | 8 | if (logger.isDebugEnabled()) |
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{ |
154 | 0 | logger.debug("Authentication success: " + authResult.toString()); |
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} |
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157 | 8 | SecurityContext context = getSecurityManager().createSecurityContext(authResult); |
158 | 8 | context.setAuthentication(authResult); |
159 | 8 | event.getSession().setSecurityContext(context); |
160 | 8 | } |
161 | 10 | else if (header == null) |
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{ |
163 | 10 | setUnauthenticated(event); |
164 | 10 | throw new UnauthorisedException(event.getMessage(), event.getSession().getSecurityContext(), |
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getEndpoint(), this); |
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} |
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else |
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{ |
169 | 0 | setUnauthenticated(event); |
170 | 0 | throw new UnsupportedAuthenticationSchemeException( |
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AcegiMessages.basicFilterCannotHandleHeader(header), |
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event.getMessage()); |
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} |
174 | 8 | } |
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protected void setUnauthenticated(MuleEvent event) |
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{ |
178 | 14 | String realmHeader = "Basic realm="; |
179 | 14 | if (realm != null) |
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{ |
181 | 14 | realmHeader += "\"" + realm + "\""; |
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} |
183 | 14 | MuleMessage msg = event.getMessage(); |
184 | 14 | msg.setProperty(HttpConstants.HEADER_WWW_AUTHENTICATE, realmHeader); |
185 | 14 | msg.setIntProperty(HttpConnector.HTTP_STATUS_PROPERTY, HttpConstants.SC_UNAUTHORIZED); |
186 | 14 | } |
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public void authenticateOutbound(MuleEvent event) |
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throws SecurityException, SecurityProviderNotFoundException |
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{ |
198 | 0 | if (event.getSession().getSecurityContext() == null) |
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{ |
200 | 0 | if (isAuthenticate()) |
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{ |
202 | 0 | throw new UnauthorisedException(event.getMessage(), event.getSession().getSecurityContext(), |
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event.getEndpoint(), this); |
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} |
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else |
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{ |
207 | 0 | return; |
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} |
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} |
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|
211 | 0 | Authentication auth = event.getSession().getSecurityContext().getAuthentication(); |
212 | 0 | if (isAuthenticate()) |
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{ |
214 | 0 | auth = getSecurityManager().authenticate(auth); |
215 | 0 | if (logger.isDebugEnabled()) |
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{ |
217 | 0 | logger.debug("Authentication success: " + auth.toString()); |
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} |
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} |
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221 | 0 | StringBuffer header = new StringBuffer(128); |
222 | 0 | header.append("Basic "); |
223 | 0 | String token = auth.getCredentials().toString(); |
224 | 0 | header.append(new String(Base64.encodeBase64(token.getBytes()))); |
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|
226 | 0 | event.getMessage().setStringProperty(HttpConstants.HEADER_AUTHORIZATION, header.toString()); |
227 | 0 | } |
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} |