1 | /** |
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2 | * Base Filters |
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3 | * @Author Jeroen Wesbeek |
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4 | * @Since 20091026 |
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5 | * @see main.gsp |
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6 | * @see http://grails.org/Filters |
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7 | * @Description |
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8 | * |
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9 | * These filters contain generic logic for -every- page request. |
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10 | * |
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11 | * Revision information: |
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12 | * $Rev: 776 $ |
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13 | * $Author: duh $ |
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14 | * $Date: 2010-08-05 12:15:26 +0200 (Thu, 05 Aug 2010) $ |
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15 | */ |
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16 | import grails.converters.* |
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17 | import org.codehaus.groovy.grails.commons.ConfigurationHolder |
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18 | |
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19 | import nl.tno.metagenomics.auth.User; |
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20 | |
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21 | class BaseFilters { |
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22 | def gscfService |
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23 | |
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24 | // define filters |
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25 | def filters = { |
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26 | |
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27 | userCheck(controller:'*', action:'*') { |
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28 | before = { |
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29 | if( actionName == "notifyStudyChange" && controllerName == "rest" ) { |
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30 | return true; |
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31 | } |
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32 | |
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33 | if( !ConfigurationHolder.config.gscf.baseURL ) { |
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34 | throw new Exception( "No GSCF instance specified. Please check configuration." ) |
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35 | return false |
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36 | } |
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37 | |
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38 | // enable to inject a session from the outside... |
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39 | if (params.sessionToken){ |
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40 | log.info("Setting SessionToken from params.sessionToken to ${params.sessionToken}") |
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41 | session.sessionToken = params.sessionToken |
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42 | |
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43 | log.info("Redirecting to GSCF to login for session from params.sessionToken") |
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44 | redirect( url: gscfService.urlAuthRemote(params, session.sessionToken) ) |
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45 | return false |
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46 | } |
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47 | |
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48 | // If a user is already logged in, let him continue |
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49 | if( session.user && session.user != null ) { |
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50 | return true; |
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51 | } |
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52 | |
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53 | // on all pages of the Metagenomics module a user should be present in the session |
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54 | if (session.sessionToken) { |
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55 | log.info("SessionToken found, ask GSCF for User information") |
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56 | |
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57 | // try to identify the user with the sessionToken, since the user has logged in before |
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58 | try { |
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59 | def user = [:] |
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60 | |
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61 | // First check if the user is authenticated. If he isn't, he should provide credentials at GSCF |
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62 | def authentication = JSON.parse("${ConfigurationHolder.config.gscf.baseURL}/rest/isUser?consumer=${ConfigurationHolder.config.metagenomics.consumerID}&token=${session.sessionToken}".toURL().text) |
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63 | |
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64 | if( !authentication.authenticated ) { |
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65 | log.info "Not authenticated: " + authentication.authenticated |
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66 | redirect( url: gscfService.urlAuthRemote(params, session.sessionToken) ) |
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67 | return false |
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68 | } |
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69 | |
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70 | // Now find the user data |
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71 | JSON.parse("${ConfigurationHolder.config.gscf.baseURL}/rest/getUser?consumer=${ConfigurationHolder.config.metagenomics.consumerID}&token=${session.sessionToken}".toURL().text).each { userProperty -> |
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72 | user["${userProperty.key}"] = "${userProperty.value}" |
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73 | } |
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74 | |
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75 | // Locate user in database or create a new user |
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76 | session.user = User.findByIdentifierAndUsername(user.id, user.username) |
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77 | if (!session.user){ // when not found, create a new user |
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78 | session.user = new User(identifier: user.id, username: user.username).save(flush: true) |
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79 | } |
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80 | |
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81 | } catch(Exception e) { |
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82 | log.error("Unable to fetch user from GSCF", e) |
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83 | throw new Exception( "GSCF instance at " + ConfigurationHolder.config.gscf.baseURL + " could not be reached. Please check configuration.", e ) |
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84 | } |
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85 | } else { |
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86 | session.sessionToken = "${UUID.randomUUID()}" |
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87 | log.info("SessionToken created, redirectiong to GSCF to let the user login! (SessionToken: ${session.sessionToken}") |
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88 | |
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89 | redirect( url: gscfService.urlAuthRemote(params, session.sessionToken) ) |
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90 | return false |
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91 | } |
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92 | } |
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93 | } |
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94 | |
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95 | defineStyle(controller: '*', action: '*') { |
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96 | // before every execution |
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97 | before = { |
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98 | // set the default style in the session |
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99 | if (!session.style) { |
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100 | session.style = 'metagenomics' |
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101 | } |
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102 | |
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103 | // set session lifetime to 1 week |
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104 | session.setMaxInactiveInterval(604800) |
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105 | } |
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106 | } |
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107 | } |
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108 | |
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109 | } |
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110 | |
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