1 | /* |
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2 | * Copyright (C) 2013 DASISH |
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3 | * |
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4 | * This program is free software; you can redistribute it and/or |
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5 | * modify it under the terms of the GNU General Public License |
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6 | * as published by the Free Software Foundation; either version 2 |
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7 | * of the License, or (at your option) any later version. |
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8 | * |
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9 | * This program is distributed in the hope that it will be useful, |
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10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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12 | * GNU General Public License for more details. |
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13 | * |
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14 | * You should have received a copy of the GNU General Public License |
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15 | * along with this program; if not, write to the Free Software |
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16 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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17 | */ |
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18 | package eu.dasish.annotation.backend.rest; |
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19 | |
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20 | import eu.dasish.annotation.backend.BackendConstants; |
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21 | import eu.dasish.annotation.backend.dao.DBIntegrityService; |
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22 | import eu.dasish.annotation.schema.Annotation; |
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23 | import eu.dasish.annotation.schema.AnnotationActionName; |
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24 | import eu.dasish.annotation.schema.AnnotationInfoList; |
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25 | import eu.dasish.annotation.schema.Action; |
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26 | import eu.dasish.annotation.schema.ActionList; |
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27 | import eu.dasish.annotation.schema.AnnotationBody; |
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28 | import eu.dasish.annotation.schema.ObjectFactory; |
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29 | import eu.dasish.annotation.schema.Permission; |
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30 | import eu.dasish.annotation.schema.PermissionActionName; |
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31 | import eu.dasish.annotation.schema.UserWithPermissionList; |
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32 | import eu.dasish.annotation.schema.ReferenceList; |
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33 | import eu.dasish.annotation.schema.ResponseBody; |
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34 | import java.io.IOException; |
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35 | import java.net.URI; |
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36 | import java.security.Principal; |
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37 | import java.sql.Timestamp; |
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38 | import java.util.ArrayList; |
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39 | import java.util.List; |
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40 | import java.util.UUID; |
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41 | import javax.servlet.http.HttpServletRequest; |
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42 | import javax.servlet.http.HttpServletResponse; |
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43 | import javax.ws.rs.Consumes; |
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44 | import javax.ws.rs.DELETE; |
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45 | import javax.ws.rs.GET; |
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46 | import javax.ws.rs.POST; |
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47 | import javax.ws.rs.PUT; |
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48 | import javax.ws.rs.Path; |
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49 | import javax.ws.rs.PathParam; |
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50 | import javax.ws.rs.Produces; |
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51 | import javax.ws.rs.QueryParam; |
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52 | import javax.ws.rs.core.Context; |
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53 | import javax.ws.rs.core.MediaType; |
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54 | import javax.ws.rs.core.SecurityContext; |
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55 | import javax.ws.rs.core.UriInfo; |
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56 | import javax.ws.rs.ext.Providers; |
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57 | import javax.xml.bind.JAXBElement; |
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58 | import org.springframework.beans.factory.annotation.Autowired; |
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59 | import org.springframework.security.access.annotation.Secured; |
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60 | import org.springframework.stereotype.Component; |
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61 | import org.slf4j.Logger; |
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62 | import org.slf4j.LoggerFactory; |
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63 | |
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64 | /** |
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65 | * |
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66 | * @author olhsha |
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67 | */ |
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68 | @Component |
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69 | @Path("/annotations") |
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70 | public class AnnotationResource { |
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71 | |
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72 | @Autowired |
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73 | private DBIntegrityService dbIntegrityService; |
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74 | @Context |
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75 | private HttpServletRequest httpServletRequest; |
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76 | @Context |
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77 | private HttpServletResponse httpServletResponse; |
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78 | @Context |
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79 | private UriInfo uriInfo; |
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80 | @Context |
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81 | private Providers providers; |
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82 | |
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83 | |
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84 | final String default_permission = "reader"; |
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85 | private static final Logger logger = LoggerFactory.getLogger(AnnotationResource.class); |
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86 | |
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87 | public void setUriInfo(UriInfo uriInfo) { |
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88 | this.uriInfo = uriInfo; |
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89 | } |
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90 | |
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91 | public void setHttpServletResponse(HttpServletResponse httpServletResponse) { |
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92 | this.httpServletResponse = httpServletResponse; |
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93 | } |
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94 | |
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95 | public void setHttpServletRequest(HttpServletRequest httpServletRequest) { |
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96 | this.httpServletRequest = httpServletRequest; |
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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 | public void setProviders(Providers providers) { |
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102 | this.providers = providers; |
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103 | } |
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104 | |
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105 | public AnnotationResource() { |
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106 | } |
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107 | |
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108 | @GET |
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109 | @Produces(MediaType.TEXT_XML) |
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110 | @Path("{annotationid: " + BackendConstants.regExpIdentifier + "}") |
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111 | @Secured("ROLE_USER") |
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112 | public JAXBElement<Annotation> getAnnotation(@PathParam("annotationid") String ExternalIdentifier) { |
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113 | URI baseURI = uriInfo.getBaseUri(); |
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114 | String baseURIstr = baseURI.toString(); |
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115 | dbIntegrityService.setServiceURI(baseURIstr); |
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116 | final Number annotationID = dbIntegrityService.getAnnotationInternalIdentifier(UUID.fromString(ExternalIdentifier)); |
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117 | String remoteUser = httpServletRequest.getRemoteUser(); |
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118 | final Number userID = dbIntegrityService.getUserInternalIDFromRemoteID(remoteUser); |
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119 | if (canRead(userID, annotationID)) { |
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120 | final Annotation annotation = dbIntegrityService.getAnnotation(annotationID); |
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121 | JAXBElement<Annotation> rootElement = new ObjectFactory().createAnnotation(annotation); |
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122 | logger.info("getAnnotation method: OK"); |
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123 | return rootElement; |
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124 | } else { |
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125 | try { |
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126 | logger.error("FORBIDDEN-access attempt"); |
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127 | httpServletResponse.sendError(HttpServletResponse.SC_FORBIDDEN); |
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128 | } catch (IOException ioe) { |
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129 | logger.error("IOException: Cannot send server respond about unaithorized access."); |
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130 | } |
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131 | return null; |
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132 | } |
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133 | |
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134 | } |
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135 | |
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136 | //TODO: unit test |
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137 | @GET |
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138 | @Produces(MediaType.TEXT_XML) |
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139 | @Path("{annotationid: " + BackendConstants.regExpIdentifier + "}/targets") |
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140 | @Secured("ROLE_USER") |
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141 | public JAXBElement<ReferenceList> getAnnotationTargets(@PathParam("annotationid") String ExternalIdentifier) { |
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142 | dbIntegrityService.setServiceURI(uriInfo.getBaseUri().toString()); |
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143 | final Number annotationID = dbIntegrityService.getAnnotationInternalIdentifier(UUID.fromString(ExternalIdentifier)); |
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144 | final Number userID = dbIntegrityService.getUserInternalIDFromRemoteID(httpServletRequest.getRemoteUser()); |
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145 | if (canRead(userID, annotationID)) { |
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146 | final ReferenceList TargetList = dbIntegrityService.getAnnotationTargets(annotationID); |
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147 | logger.info("getAnnotationTargets method: OK"); |
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148 | return new ObjectFactory().createTargetList(TargetList); |
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149 | } else { |
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150 | try { |
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151 | logger.error("FORBIDDEN-access attempt"); |
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152 | httpServletResponse.sendError(HttpServletResponse.SC_UNAUTHORIZED); |
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153 | } catch (IOException ioe) { |
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154 | logger.error("IOException: Cannot send server respond about unaithorized access."); |
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155 | } |
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156 | return null; |
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157 | } |
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158 | } |
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159 | |
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160 | // TODO Unit test |
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161 | @GET |
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162 | @Produces(MediaType.TEXT_XML) |
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163 | @Path("") |
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164 | @Secured("ROLE_USER") |
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165 | public JAXBElement<AnnotationInfoList> getFilteredAnnotations(@QueryParam("link") String link, |
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166 | @QueryParam("text") String text, |
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167 | @QueryParam("access") String permission, |
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168 | @QueryParam("namespace") String namespace, |
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169 | @QueryParam("owner") String ownerExternalId, |
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170 | @QueryParam("after") Timestamp after, |
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171 | @QueryParam("before") Timestamp before) { |
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172 | |
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173 | dbIntegrityService.setServiceURI(uriInfo.getBaseUri().toString()); |
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174 | Number userID = dbIntegrityService.getUserInternalIDFromRemoteID(httpServletRequest.getRemoteUser()); |
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175 | UUID ownerExternalUUID = (ownerExternalId != null) ? UUID.fromString(ownerExternalId) : null; |
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176 | String access = (permission != null) ? permission : default_permission; |
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177 | final AnnotationInfoList annotationInfoList = dbIntegrityService.getFilteredAnnotationInfos(link, text, userID, access, namespace, ownerExternalUUID, after, before); |
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178 | logger.info("getFilteredAnnotations method: OK"); |
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179 | return new ObjectFactory().createAnnotationInfoList(annotationInfoList); |
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180 | } |
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181 | |
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182 | // TODO Unit test |
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183 | @GET |
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184 | @Produces(MediaType.TEXT_XML) |
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185 | @Path("{annotationid: " + BackendConstants.regExpIdentifier + "}/permissions") |
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186 | @Secured("ROLE_USER") |
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187 | public JAXBElement<UserWithPermissionList> getAnnotationPermissions(@PathParam("annotationid") String ExternalIdentifier) { |
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188 | dbIntegrityService.setServiceURI(uriInfo.getBaseUri().toString()); |
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189 | final Number annotationID = dbIntegrityService.getAnnotationInternalIdentifier(UUID.fromString(ExternalIdentifier)); |
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190 | final Number userID = dbIntegrityService.getUserInternalIDFromRemoteID(httpServletRequest.getRemoteUser()); |
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191 | if (canRead(userID, annotationID)) { |
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192 | final UserWithPermissionList permissionList = dbIntegrityService.getPermissionsForAnnotation(annotationID); |
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193 | logger.info("getAnnotationPermissions method: OK"); |
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194 | return new ObjectFactory().createPermissionList(permissionList); |
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195 | } else { |
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196 | try { |
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197 | logger.error("FORBIDDEN-access attempt"); |
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198 | httpServletResponse.sendError(HttpServletResponse.SC_UNAUTHORIZED); |
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199 | } catch (IOException ioe) { |
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200 | logger.error("IOException: Cannot send server respond about unaithorized access."); |
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201 | } |
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202 | return null; |
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203 | } |
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204 | |
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205 | } |
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206 | |
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207 | /////////////////////////////////////////////////////// |
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208 | // TODO: how to return the status code? |
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209 | @DELETE |
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210 | @Path("{annotationid: " + BackendConstants.regExpIdentifier + "}") |
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211 | @Secured("ROLE_USER") |
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212 | public String deleteAnnotation(@PathParam("annotationid") String externalIdentifier) { |
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213 | dbIntegrityService.setServiceURI(uriInfo.getBaseUri().toString()); |
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214 | final Number annotationID = dbIntegrityService.getAnnotationInternalIdentifier(UUID.fromString(externalIdentifier)); |
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215 | final Number userID = dbIntegrityService.getUserInternalIDFromRemoteID(httpServletRequest.getRemoteUser()); |
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216 | if (isOwner(userID, annotationID)) { |
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217 | int[] resultDelete = dbIntegrityService.deleteAnnotation(annotationID); |
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218 | String result = Integer.toString(resultDelete[0]); |
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219 | logger.info("deleteAnnotation method: OK"); |
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220 | return result + " annotation(s) deleted."; |
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221 | } else { |
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222 | logger.error("FORBIDDEN-access attempt. Only the owner can delete an annotation."); |
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223 | try { |
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224 | httpServletResponse.sendError(HttpServletResponse.SC_UNAUTHORIZED); |
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225 | } catch (IOException ioe) { |
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226 | logger.error("IOException: Cannot send server respond about unaithorized access."); |
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227 | } |
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228 | return null; |
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229 | } |
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230 | |
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231 | } |
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232 | |
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233 | /////////////////////////////////////////////////////// |
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234 | @POST |
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235 | @Consumes(MediaType.APPLICATION_XML) |
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236 | @Produces(MediaType.APPLICATION_XML) |
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237 | @Path("") |
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238 | @Secured("ROLE_USER") |
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239 | public JAXBElement<ResponseBody> createAnnotation(Annotation annotation) { |
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240 | dbIntegrityService.setServiceURI(uriInfo.getBaseUri().toString()); |
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241 | final Number userID = dbIntegrityService.getUserInternalIDFromRemoteID(httpServletRequest.getRemoteUser()); |
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242 | Number annotationID = dbIntegrityService.addUsersAnnotation(userID, annotation); |
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243 | logger.info("createAnnotation method: OK"); |
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244 | return new ObjectFactory().createResponseBody(makeAnnotationResponseEnvelope(annotationID)); |
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245 | } |
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246 | |
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247 | /////////////////////////////////////////////////////// |
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248 | // TODO: unit test |
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249 | @PUT |
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250 | @Consumes(MediaType.APPLICATION_XML) |
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251 | @Produces(MediaType.APPLICATION_XML) |
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252 | @Path("{annotationid: " + BackendConstants.regExpIdentifier + "}") |
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253 | @Secured("ROLE_USER") |
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254 | public JAXBElement<ResponseBody> updateAnnotation(@PathParam("annotationid") String externalIdentifier, Annotation annotation) { |
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255 | String path = uriInfo.getBaseUri().toString(); |
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256 | dbIntegrityService.setServiceURI(path); |
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257 | String annotationURI = annotation.getURI(); |
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258 | if (!(path + "annotations/" + externalIdentifier).equals(annotationURI)) { |
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259 | logger.error("Wrong request: the external annotation ID and the annotation ID from the request body do not match."); |
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260 | logger.error("Will do nothing."); |
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261 | return null; |
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262 | } |
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263 | final Number annotationID = dbIntegrityService.getAnnotationInternalIdentifier(UUID.fromString(externalIdentifier)); |
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264 | final Number userID = dbIntegrityService.getUserInternalIDFromRemoteID(httpServletRequest.getRemoteUser()); |
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265 | if (canWrite(userID, annotationID)) { |
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266 | int updatedRows = dbIntegrityService.updateUsersAnnotation(userID, annotation); |
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267 | logger.info("updateAnnotation method: OK"); |
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268 | return new ObjectFactory().createResponseBody(makeAnnotationResponseEnvelope(annotationID)); |
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269 | |
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270 | } else { |
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271 | logger.error("FORBIDDEN-access attempt."); |
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272 | logger.error("The logged-in user is not authorised to alter this annotation. "); |
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273 | try { |
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274 | httpServletResponse.sendError(HttpServletResponse.SC_UNAUTHORIZED); |
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275 | } catch (IOException ioe) { |
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276 | logger.error("IOException: Cannot send server respond about unaithorized access."); |
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277 | } |
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278 | return null; |
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279 | } |
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280 | |
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281 | } |
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282 | |
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283 | @PUT |
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284 | @Consumes(MediaType.APPLICATION_XML) |
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285 | @Produces(MediaType.APPLICATION_XML) |
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286 | @Path("{annotationid: " + BackendConstants.regExpIdentifier + "}/body") |
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287 | @Secured("ROLE_USER") |
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288 | public JAXBElement<ResponseBody> updateAnnotationBody(@PathParam("annotationid") String externalIdentifier, AnnotationBody annotationBody) { |
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289 | String path = uriInfo.getBaseUri().toString(); |
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290 | dbIntegrityService.setServiceURI(path); |
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291 | |
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292 | final Number annotationID = dbIntegrityService.getAnnotationInternalIdentifier(UUID.fromString(externalIdentifier)); |
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293 | final Number userID = dbIntegrityService.getUserInternalIDFromRemoteID(httpServletRequest.getRemoteUser()); |
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294 | if (canWrite(userID, annotationID)) { |
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295 | int updatedRows = dbIntegrityService.updateAnnotationBody(annotationID, annotationBody); |
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296 | logger.info("updateAnnotationBody method: OK"); |
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297 | return new ObjectFactory().createResponseBody(makeAnnotationResponseEnvelope(annotationID)); |
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298 | |
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299 | } else { |
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300 | logger.error("FORBIDDEN-access attempt."); |
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301 | logger.error("The logged-in user is not authorised to alter this annotation. "); |
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302 | try { |
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303 | httpServletResponse.sendError(HttpServletResponse.SC_UNAUTHORIZED); |
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304 | } catch (IOException ioe) { |
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305 | logger.error("IOException: Cannot send server respond about unaithorized access."); |
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306 | } |
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307 | return null; |
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308 | } |
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309 | |
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310 | } |
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311 | |
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312 | @PUT |
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313 | @Consumes(MediaType.APPLICATION_XML) |
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314 | @Produces(MediaType.APPLICATION_XML) |
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315 | @Path("{annotationid: " + BackendConstants.regExpIdentifier + "}/permissions/{userid: " + BackendConstants.regExpIdentifier + "}") |
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316 | @Secured("ROLE_USER") |
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317 | public String updatePermission(@PathParam("annotationid") String annotationExternalId, @PathParam("userid") String userExternalId, Permission permission) { |
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318 | dbIntegrityService.setServiceURI(uriInfo.getBaseUri().toString()); |
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319 | final Number annotationID = dbIntegrityService.getAnnotationInternalIdentifier(UUID.fromString(annotationExternalId)); |
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320 | final Number remoteUserID = dbIntegrityService.getUserInternalIDFromRemoteID(httpServletRequest.getRemoteUser()); |
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321 | final Number userID = dbIntegrityService.getUserInternalIdentifier(UUID.fromString(userExternalId)); |
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322 | if (isOwner(remoteUserID, annotationID)) { |
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323 | int result = (dbIntegrityService.getPermission(annotationID, userID) != null) |
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324 | ? dbIntegrityService.updateAnnotationPrincipalPermission(annotationID, userID, permission) |
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325 | : dbIntegrityService.addAnnotationPrincipalPermission(annotationID, userID, permission); |
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326 | logger.info("updatePermission method: OK"); |
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327 | return result + " rows are updated/added"; |
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328 | |
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329 | } else { |
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330 | logger.error("FORBIDDEN-access attempt"); |
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331 | logger.error("The logged-in user is not authorised to alter this annotation. "); |
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332 | try { |
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333 | httpServletResponse.sendError(HttpServletResponse.SC_UNAUTHORIZED); |
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334 | } catch (IOException ioe) { |
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335 | logger.error("IOException: Cannot send server respond about unaithorized access."); |
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336 | } |
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337 | return null; |
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338 | } |
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339 | } |
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340 | |
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341 | @PUT |
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342 | @Consumes(MediaType.APPLICATION_XML) |
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343 | @Produces(MediaType.APPLICATION_XML) |
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344 | @Path("{annotationid: " + BackendConstants.regExpIdentifier + "}/permissions/") |
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345 | @Secured("ROLE_USER") |
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346 | public JAXBElement<ResponseBody> updatePermissions(@PathParam("annotationid") String annotationExternalId, UserWithPermissionList permissions) { |
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347 | dbIntegrityService.setServiceURI(uriInfo.getBaseUri().toString()); |
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348 | final Number annotationID = dbIntegrityService.getAnnotationInternalIdentifier(UUID.fromString(annotationExternalId)); |
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349 | final Number remoteUserID = dbIntegrityService.getUserInternalIDFromRemoteID(httpServletRequest.getRemoteUser()); |
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350 | if (isOwner(remoteUserID, annotationID)) { |
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351 | int updatedRows = dbIntegrityService.updatePermissions(annotationID, permissions); |
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352 | logger.info("updatePermissions method: OK"); |
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353 | return new ObjectFactory().createResponseBody(makePermissionResponseEnvelope(annotationID)); |
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354 | } else { |
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355 | logger.error("FORBIDDEN-access attempt"); |
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356 | logger.error("The logged-in user is not authorised to alter this annotation. "); |
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357 | try { |
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358 | httpServletResponse.sendError(HttpServletResponse.SC_UNAUTHORIZED); |
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359 | } catch (IOException ioe) { |
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360 | logger.error("IOException: Cannot send server respond about unaithorized access."); |
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361 | } |
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362 | return null; |
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363 | } |
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364 | } |
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365 | |
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366 | ///////////////////////////////////////// |
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367 | private ResponseBody makeAnnotationResponseEnvelope(Number annotationID) { |
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368 | ResponseBody result = new ResponseBody(); |
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369 | result.setPermissions(null); |
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370 | Annotation annotation = dbIntegrityService.getAnnotation(annotationID); |
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371 | result.setAnnotation(annotation); |
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372 | List<String> targetsNoCached = dbIntegrityService.getTargetsWithNoCachedRepresentation(annotationID); |
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373 | ActionList actionList = new ActionList(); |
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374 | result.setActionList(actionList); |
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375 | actionList.getAction().addAll(makeActionList(targetsNoCached, AnnotationActionName.CREATE_CACHED_REPRESENTATION.value())); |
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376 | return result; |
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377 | } |
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378 | |
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379 | ///////////////////////////////////////// |
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380 | private ResponseBody makePermissionResponseEnvelope(Number annotationID) { |
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381 | ResponseBody result = new ResponseBody(); |
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382 | result.setAnnotation(null); |
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383 | UserWithPermissionList permissions = dbIntegrityService.getPermissionsForAnnotation(annotationID); |
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384 | result.setPermissions(permissions); |
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385 | List<String> usersWithNoInfo = dbIntegrityService.getUsersWithNoInfo(annotationID); |
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386 | ActionList actionList = new ActionList(); |
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387 | result.setActionList(actionList); |
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388 | actionList.getAction().addAll(makeActionList(usersWithNoInfo, PermissionActionName.PROVIDE_USER_INFO.value())); |
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389 | return result; |
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390 | } |
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391 | |
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392 | private List<Action> makeActionList(List<String> resourceURIs, String message) { |
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393 | if (resourceURIs != null) { |
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394 | if (resourceURIs.isEmpty()) { |
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395 | return (new ArrayList<Action>()); |
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396 | } else { |
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397 | List<Action> result = new ArrayList<Action>(); |
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398 | for (String resourceURI : resourceURIs) { |
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399 | Action action = new Action(); |
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400 | result.add(action); |
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401 | action.setMessage(message); |
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402 | action.setObject(resourceURI); |
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403 | } |
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404 | return result; |
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405 | } |
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406 | } else { |
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407 | return null; |
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408 | } |
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409 | } |
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410 | |
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411 | private boolean canRead(Number userID, Number annotationID) { |
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412 | final Permission permission = dbIntegrityService.getPermission(annotationID, userID); |
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413 | if (permission != null) { |
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414 | return (permission.value() == Permission.OWNER.value() || permission.value() == Permission.WRITER.value() || permission.value() == Permission.READER.value()); |
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415 | } else { |
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416 | return false; |
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417 | } |
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418 | } |
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419 | |
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420 | private boolean canWrite(Number userID, Number annotationID) { |
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421 | final Permission permission = dbIntegrityService.getPermission(annotationID, userID); |
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422 | if (permission != null) { |
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423 | return (permission.value() == Permission.OWNER.value() || permission.value() == Permission.WRITER.value()); |
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424 | } else { |
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425 | return false; |
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426 | } |
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427 | } |
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428 | |
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429 | private boolean isOwner(Number userID, Number annotationID) { |
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430 | final Permission permission = dbIntegrityService.getPermission(annotationID, userID); |
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431 | if (permission != null) { |
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432 | return (permission.value() == Permission.OWNER.value()); |
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433 | } else { |
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434 | return false; |
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435 | } |
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436 | } |
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437 | } |
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