1 | /* Copyright 2006-2009 the original author or authors. |
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2 | * |
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3 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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4 | * you may not use this file except in compliance with the License. |
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5 | * You may obtain a copy of the License at |
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6 | * |
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7 | * http://www.apache.org/licenses/LICENSE-2.0 |
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8 | * |
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9 | * Unless required by applicable law or agreed to in writing, software |
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10 | * distributed under the License is distributed on an "AS IS" BASIS, |
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11 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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12 | * See the License for the specific language governing permissions and |
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13 | * limitations under the License. |
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14 | */ |
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15 | package org.codehaus.groovy.grails.plugins.springsecurity |
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16 | |
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17 | import org.springframework.security.AuthenticationException |
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18 | import org.springframework.security.BadCredentialsException |
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19 | import org.springframework.security.ui.ntlm.NtlmBaseException |
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20 | import org.springframework.security.ui.ntlm.NtlmBeginHandshakeException |
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21 | import org.springframework.security.ui.ntlm.NtlmProcessingFilter |
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22 | import org.springframework.security.ui.ntlm.NtlmProcessingFilterEntryPoint |
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23 | |
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24 | import javax.servlet.ServletException |
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25 | import javax.servlet.ServletRequest |
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26 | import javax.servlet.ServletResponse |
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27 | import javax.servlet.http.HttpServletRequest |
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28 | import javax.servlet.http.HttpServletResponse |
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29 | |
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30 | /** |
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31 | * @author Martin Vlcek |
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32 | * @author <a href='mailto:beckwithb@studentsonly.com'>Burt Beckwith</a> |
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33 | */ |
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34 | class GrailsNtlmProcessingFilterEntryPoint extends NtlmProcessingFilterEntryPoint { |
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35 | |
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36 | private final String STATE_ATTR = NtlmProcessingFilter.@STATE_ATTR |
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37 | private final Integer BEGIN = NtlmProcessingFilter.@BEGIN |
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38 | |
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39 | /** |
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40 | * {@inheritDoc} |
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41 | * @see org.springframework.security.ui.ntlm.NtlmProcessingFilterEntryPoint#commence( |
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42 | * javax.servlet.ServletRequest, javax.servlet.ServletResponse, |
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43 | * org.springframework.security.AuthenticationException) |
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44 | */ |
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45 | @Override |
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46 | void commence(ServletRequest req, ServletResponse res, AuthenticationException authException) throws IOException, ServletException { |
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47 | |
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48 | // start authentication, if necessary and forceIdentification in NtlmProcessingFilter is false |
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49 | if (!(authException instanceof NtlmBaseException |
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50 | || authException instanceof BadCredentialsException)) { |
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51 | |
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52 | req.session.setAttribute STATE_ATTR, BEGIN |
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53 | |
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54 | HttpServletResponse response = (HttpServletResponse)res |
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55 | |
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56 | response.setHeader 'WWW-Authenticate', new NtlmBeginHandshakeException().message |
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57 | response.setHeader 'Connection', 'Keep-Alive' |
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58 | response.status = HttpServletResponse.SC_UNAUTHORIZED |
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59 | response.contentLength = 0 |
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60 | response.flushBuffer() |
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61 | } |
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62 | else { |
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63 | super.commence(req, res, authException) |
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64 | } |
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65 | } |
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66 | } |
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