Mercurial > hg > AnnotationManagerN4J
annotate src/main/java/de/mpiwg/itgroup/annotations/restlet/AnnotatorResourceImpl.java @ 16:794077e6288c
CLOSED - # 252: Tags for Annotations
https://it-dev.mpiwg-berlin.mpg.de/tracs/mpdl-project-software/ticket/252
| author | casties |
|---|---|
| date | Tue, 04 Sep 2012 20:02:59 +0200 |
| parents | 58357a4b86de |
| children | aafa3884b2c4 |
| rev | line source |
|---|---|
| 3 | 1 /** |
| 2 * Base class for Annotator resource classes. | |
| 3 */ | |
| 4 package de.mpiwg.itgroup.annotations.restlet; | |
| 5 | |
| 6 import java.io.UnsupportedEncodingException; | |
| 7 import java.security.InvalidKeyException; | |
| 8 import java.security.SignatureException; | |
| 5 | 9 import java.text.SimpleDateFormat; |
| 3 | 10 import java.util.ArrayList; |
| 5 | 11 import java.util.Calendar; |
| 16 | 12 import java.util.HashSet; |
| 3 | 13 import java.util.List; |
| 16 | 14 import java.util.Set; |
| 3 | 15 import java.util.regex.Matcher; |
| 16 import java.util.regex.Pattern; | |
| 17 | |
| 4 | 18 import javax.servlet.ServletContext; |
| 19 | |
| 3 | 20 import net.oauth.jsontoken.Checker; |
| 21 import net.oauth.jsontoken.JsonToken; | |
| 22 import net.oauth.jsontoken.JsonTokenParser; | |
| 23 import net.oauth.jsontoken.SystemClock; | |
| 24 import net.oauth.jsontoken.crypto.HmacSHA256Verifier; | |
| 25 import net.oauth.jsontoken.crypto.Verifier; | |
| 26 | |
| 27 import org.apache.commons.codec.binary.Base64; | |
| 28 import org.apache.log4j.Logger; | |
| 29 import org.json.JSONArray; | |
| 30 import org.json.JSONException; | |
| 31 import org.json.JSONObject; | |
| 32 import org.restlet.data.Form; | |
| 33 import org.restlet.data.Status; | |
| 34 import org.restlet.representation.Representation; | |
| 35 import org.restlet.resource.Options; | |
| 36 import org.restlet.resource.ServerResource; | |
| 37 | |
| 9 | 38 import de.mpiwg.itgroup.annotations.Actor; |
| 4 | 39 import de.mpiwg.itgroup.annotations.Annotation; |
| 40 import de.mpiwg.itgroup.annotations.Annotation.FragmentTypes; | |
| 10 | 41 import de.mpiwg.itgroup.annotations.Group; |
| 42 import de.mpiwg.itgroup.annotations.Person; | |
| 4 | 43 import de.mpiwg.itgroup.annotations.neo4j.AnnotationStore; |
| 44 import de.mpiwg.itgroup.annotations.old.NS; | |
| 3 | 45 |
| 46 /** | |
| 47 * Base class for Annotator resource classes. | |
| 48 * | |
| 49 * @author dwinter, casties | |
| 50 * | |
| 51 */ | |
| 52 public abstract class AnnotatorResourceImpl extends ServerResource { | |
| 53 | |
| 4 | 54 protected static Logger logger = Logger.getLogger(AnnotatorResourceImpl.class); |
| 55 | |
| 56 private AnnotationStore store; | |
| 3 | 57 |
| 58 protected String getAllowedMethodsForHeader() { | |
| 59 return "OPTIONS,GET,POST"; | |
| 60 } | |
| 61 | |
| 4 | 62 protected AnnotationStore getAnnotationStore() { |
| 63 if (store == null) { | |
| 64 ServletContext sc = (ServletContext) getContext().getServerDispatcher().getContext().getAttributes() | |
| 65 .get("org.restlet.ext.servlet.ServletContext"); | |
| 66 logger.debug("Getting AnnotationStore from Context"); | |
| 67 store = (AnnotationStore) sc.getAttribute(RestServer.ANNSTORE_KEY); | |
| 68 } | |
| 69 return store; | |
| 70 } | |
| 71 | |
| 3 | 72 public String encodeJsonId(String id) { |
| 73 try { | |
| 74 return Base64.encodeBase64URLSafeString(id.getBytes("UTF-8")); | |
| 75 } catch (UnsupportedEncodingException e) { | |
| 76 return null; | |
| 77 } | |
| 78 } | |
| 79 | |
| 80 public String decodeJsonId(String id) { | |
| 81 try { | |
| 82 return new String(Base64.decodeBase64(id), "UTF-8"); | |
| 83 } catch (UnsupportedEncodingException e) { | |
| 84 return null; | |
| 85 } | |
| 86 } | |
| 87 | |
| 88 /** | |
| 89 * Handle options request to allow CORS for AJAX. | |
| 90 * | |
| 91 * @param entity | |
| 92 */ | |
| 93 @Options | |
| 94 public void doOptions(Representation entity) { | |
| 95 logger.debug("AnnotatorResourceImpl doOptions!"); | |
| 96 setCorsHeaders(); | |
| 97 } | |
| 98 | |
| 99 /** | |
| 100 * set headers to allow CORS for AJAX. | |
| 101 */ | |
| 102 protected void setCorsHeaders() { | |
| 103 Form responseHeaders = (Form) getResponse().getAttributes().get("org.restlet.http.headers"); | |
| 104 if (responseHeaders == null) { | |
| 105 responseHeaders = new Form(); | |
| 106 getResponse().getAttributes().put("org.restlet.http.headers", responseHeaders); | |
| 107 } | |
| 108 responseHeaders.add("Access-Control-Allow-Methods", getAllowedMethodsForHeader()); | |
| 109 // echo back Origin and Request-Headers | |
| 110 Form requestHeaders = (Form) getRequest().getAttributes().get("org.restlet.http.headers"); | |
| 111 String origin = requestHeaders.getFirstValue("Origin", true); | |
| 112 if (origin == null) { | |
| 113 responseHeaders.add("Access-Control-Allow-Origin", "*"); | |
| 114 } else { | |
| 115 responseHeaders.add("Access-Control-Allow-Origin", origin); | |
| 116 } | |
| 117 String allowHeaders = requestHeaders.getFirstValue("Access-Control-Request-Headers", true); | |
| 118 if (allowHeaders != null) { | |
| 119 responseHeaders.add("Access-Control-Allow-Headers", allowHeaders); | |
| 120 } | |
| 121 responseHeaders.add("Access-Control-Allow-Credentials", "true"); | |
| 122 responseHeaders.add("Access-Control-Max-Age", "60"); | |
| 123 } | |
| 124 | |
| 125 /** | |
| 126 * returns if authentication information from headers is valid. | |
| 127 * | |
| 128 * @param entity | |
| 129 * @return | |
| 130 */ | |
| 131 public boolean isAuthenticated(Representation entity) { | |
| 132 return (checkAuthToken(entity) != null); | |
| 133 } | |
| 134 | |
| 135 /** | |
| 4 | 136 * checks Annotator Auth plugin authentication information from headers. |
| 137 * returns userId if successful. | |
| 3 | 138 * |
| 139 * @param entity | |
| 140 * @return | |
| 141 */ | |
| 142 public String checkAuthToken(Representation entity) { | |
| 143 Form requestHeaders = (Form) getRequest().getAttributes().get("org.restlet.http.headers"); | |
| 144 String authToken = requestHeaders.getFirstValue("x-annotator-auth-token", true); | |
|
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145 if (authToken == null) return null; |
| 3 | 146 // decode token first to get consumer key |
| 147 JsonToken token = new JsonTokenParser(null, null).deserialize(authToken); | |
| 148 String userId = token.getParamAsPrimitive("userId").getAsString(); | |
| 149 String consumerKey = token.getParamAsPrimitive("consumerKey").getAsString(); | |
| 150 // get stored consumer secret for key | |
| 151 RestServer restServer = (RestServer) getApplication(); | |
| 152 String consumerSecret = restServer.getConsumerSecret(consumerKey); | |
| 153 logger.debug("requested consumer key=" + consumerKey + " secret=" + consumerSecret); | |
| 154 if (consumerSecret == null) { | |
| 155 return null; | |
| 156 } | |
| 157 // logger.debug(String.format("token=%s tokenString=%s signatureAlgorithm=%s",token,token.getTokenString(),token.getSignatureAlgorithm())); | |
| 158 try { | |
| 159 List<Verifier> verifiers = new ArrayList<Verifier>(); | |
| 160 // we only do HS256 yet | |
| 161 verifiers.add(new HmacSHA256Verifier(consumerSecret.getBytes("UTF-8"))); | |
| 162 // verify token signature(should really be static...) | |
| 163 new JsonTokenParser(new SystemClock(), null, (Checker[]) null).verify(token, verifiers); | |
| 164 } catch (SignatureException e) { | |
| 165 // TODO Auto-generated catch block | |
| 166 e.printStackTrace(); | |
| 167 } catch (InvalidKeyException e) { | |
| 168 // TODO Auto-generated catch block | |
| 169 e.printStackTrace(); | |
| 170 } catch (UnsupportedEncodingException e) { | |
| 171 // TODO Auto-generated catch block | |
| 172 e.printStackTrace(); | |
| 173 } | |
| 174 // must be ok then | |
| 175 logger.debug("auth OK! user=" + userId); | |
| 176 return userId; | |
| 177 } | |
| 178 | |
| 179 /** | |
| 180 * creates Annotator-JSON from an Annotation object. | |
| 181 * | |
| 182 * @param annot | |
|
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183 * @param forAnonymous TODO |
| 3 | 184 * @return |
| 185 */ | |
|
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186 public JSONObject createAnnotatorJson(Annotation annot, boolean forAnonymous) { |
| 5 | 187 // return user as a JSON object (otherwise just as string) |
| 3 | 188 boolean makeUserObject = true; |
| 189 JSONObject jo = new JSONObject(); | |
| 190 try { | |
| 4 | 191 jo.put("text", annot.getBodyText()); |
| 192 jo.put("uri", annot.getTargetBaseUri()); | |
| 3 | 193 |
| 16 | 194 /* |
| 195 * user | |
| 196 */ | |
| 3 | 197 if (makeUserObject) { |
| 198 // create user object | |
| 199 JSONObject userObject = new JSONObject(); | |
| 10 | 200 Actor creator = annot.getCreator(); |
| 3 | 201 // save creator as uri |
| 10 | 202 userObject.put("uri", creator.getUri()); |
| 3 | 203 // make short user id |
| 10 | 204 String userId = creator.getIdString(); |
| 9 | 205 // set as id |
| 4 | 206 userObject.put("id", userId); |
| 3 | 207 // get full name |
| 10 | 208 String userName = creator.getName(); |
| 5 | 209 if (userName == null) { |
| 210 RestServer restServer = (RestServer) getApplication(); | |
| 211 userName = restServer.getFullNameFromLdap(userId); | |
| 212 } | |
| 3 | 213 userObject.put("name", userName); |
| 214 // save user object | |
| 215 jo.put("user", userObject); | |
| 216 } else { | |
| 217 // save user as string | |
| 4 | 218 jo.put("user", annot.getCreatorUri()); |
| 3 | 219 } |
| 220 | |
| 16 | 221 /* |
| 222 * ranges | |
| 223 */ | |
| 4 | 224 if (annot.getTargetFragment() != null) { |
| 3 | 225 // we only look at the first xpointer |
| 4 | 226 List<String> fragments = new ArrayList<String>(); |
| 227 fragments.add(annot.getTargetFragment()); | |
| 228 FragmentTypes xt = annot.getFragmentType(); | |
| 229 if (xt == FragmentTypes.XPOINTER) { | |
| 230 jo.put("ranges", transformToRanges(fragments)); | |
| 231 } else if (xt == FragmentTypes.AREA) { | |
| 232 jo.put("areas", transformToAreas(fragments)); | |
| 3 | 233 } |
| 234 } | |
| 10 | 235 |
| 16 | 236 /* |
| 237 * permissions | |
| 238 */ | |
| 10 | 239 JSONObject perms = new JSONObject(); |
| 240 jo.put("permissions", perms); | |
| 241 // admin | |
| 242 JSONArray adminPerms = new JSONArray(); | |
| 243 perms.put("admin", adminPerms); | |
| 244 Actor adminPerm = annot.getAdminPermission(); | |
| 245 if (adminPerm != null) { | |
| 246 adminPerms.put(adminPerm.getIdString()); | |
|
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629e15b345aa
permissions mostly work. need more server-side checking.
casties
parents:
10
diff
changeset
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247 } else if (forAnonymous) { |
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629e15b345aa
permissions mostly work. need more server-side checking.
casties
parents:
10
diff
changeset
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248 // set something because its not allowed for anonymous |
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permissions mostly work. need more server-side checking.
casties
parents:
10
diff
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249 adminPerms.put("not-you"); |
| 10 | 250 } |
| 251 // delete | |
| 252 JSONArray deletePerms = new JSONArray(); | |
| 253 perms.put("delete", deletePerms); | |
| 254 Actor deletePerm = annot.getDeletePermission(); | |
| 255 if (deletePerm != null) { | |
| 256 deletePerms.put(deletePerm.getIdString()); | |
|
14
629e15b345aa
permissions mostly work. need more server-side checking.
casties
parents:
10
diff
changeset
|
257 } else if (forAnonymous) { |
|
629e15b345aa
permissions mostly work. need more server-side checking.
casties
parents:
10
diff
changeset
|
258 // set something because its not allowed for anonymous |
|
629e15b345aa
permissions mostly work. need more server-side checking.
casties
parents:
10
diff
changeset
|
259 deletePerms.put("not-you"); |
| 10 | 260 } |
| 261 // update | |
| 262 JSONArray updatePerms = new JSONArray(); | |
| 263 perms.put("update", updatePerms); | |
| 264 Actor updatePerm = annot.getUpdatePermission(); | |
| 265 if (updatePerm != null) { | |
| 266 updatePerms.put(updatePerm.getIdString()); | |
|
14
629e15b345aa
permissions mostly work. need more server-side checking.
casties
parents:
10
diff
changeset
|
267 } else if (forAnonymous) { |
|
629e15b345aa
permissions mostly work. need more server-side checking.
casties
parents:
10
diff
changeset
|
268 // set something because its not allowed for anonymous |
|
629e15b345aa
permissions mostly work. need more server-side checking.
casties
parents:
10
diff
changeset
|
269 updatePerms.put("not-you"); |
| 10 | 270 } |
| 271 // read | |
| 272 JSONArray readPerms = new JSONArray(); | |
| 273 perms.put("read", readPerms); | |
| 274 Actor readPerm = annot.getReadPermission(); | |
| 275 if (readPerm != null) { | |
| 276 readPerms.put(readPerm.getIdString()); | |
| 277 } | |
| 278 | |
| 16 | 279 /* |
| 280 * tags | |
| 281 */ | |
| 282 Set<String> tagset = annot.getTags(); | |
| 283 if (tagset != null) { | |
| 284 JSONArray tags = new JSONArray(); | |
| 285 jo.put("tags", tags); | |
| 286 for (String tag : tagset) { | |
| 287 tags.put(tag); | |
| 288 } | |
| 289 } | |
| 290 | |
| 291 /* | |
| 292 * id | |
| 293 */ | |
| 3 | 294 // encode Annotation URL (=id) in base64 |
| 4 | 295 String annotUrl = annot.getUri(); |
| 3 | 296 String annotId = encodeJsonId(annotUrl); |
| 297 jo.put("id", annotId); | |
| 298 return jo; | |
| 299 } catch (JSONException e) { | |
| 300 // TODO Auto-generated catch block | |
| 301 e.printStackTrace(); | |
| 302 } | |
| 303 return null; | |
| 304 } | |
| 305 | |
| 306 private JSONArray transformToRanges(List<String> xpointers) { | |
| 307 | |
| 308 JSONArray ja = new JSONArray(); | |
| 309 | |
| 310 Pattern rg = Pattern | |
| 4 | 311 .compile("xpointer\\(start-point\\(string-range\\(\"([^\"]*)\",([^,]*),1\\)\\)/range-to\\(end-point\\(string-range\\(\"([^\"]*)\",([^,]*),1\\)\\)\\)\\)"); |
| 312 Pattern rg1 = Pattern.compile("xpointer\\(start-point\\(string-range\\(\"([^\"]*)\",([^,]*),1\\)\\)\\)"); | |
| 3 | 313 |
| 314 try { | |
| 315 for (String xpointer : xpointers) { | |
| 10 | 316 // String decoded = URLDecoder.decode(xpointer, "utf-8"); |
| 5 | 317 String decoded = xpointer; |
| 3 | 318 Matcher m = rg.matcher(decoded); |
| 319 | |
| 320 if (m.find()) { | |
| 321 { | |
| 322 JSONObject jo = new JSONObject(); | |
| 323 jo.put("start", m.group(1)); | |
| 324 jo.put("startOffset", m.group(2)); | |
| 325 jo.put("end", m.group(3)); | |
| 326 jo.put("endOffset", m.group(4)); | |
| 327 ja.put(jo); | |
| 328 } | |
| 329 } | |
| 330 m = rg1.matcher(xpointer); | |
| 331 if (m.find()) { | |
| 332 JSONObject jo = new JSONObject(); | |
| 333 jo.put("start", m.group(1)); | |
| 334 jo.put("startOffset", m.group(2)); | |
| 335 | |
| 336 ja.put(jo); | |
| 337 } | |
| 338 } | |
| 339 } catch (JSONException e) { | |
| 340 // TODO Auto-generated catch block | |
| 341 e.printStackTrace(); | |
| 342 } | |
| 343 return ja; | |
| 344 } | |
| 345 | |
| 346 private JSONArray transformToAreas(List<String> xpointers) { | |
| 347 | |
| 348 JSONArray ja = new JSONArray(); | |
| 349 | |
| 4 | 350 Pattern rg = Pattern.compile("xywh=(\\w*:)([\\d\\.]+),([\\d\\.]+),([\\d\\.]+),([\\d\\.]+)"); |
| 3 | 351 |
| 352 try { | |
| 353 for (String xpointer : xpointers) { | |
| 10 | 354 // String decoded = URLDecoder.decode(xpointer, "utf-8"); |
| 5 | 355 String decoded = xpointer; |
| 3 | 356 Matcher m = rg.matcher(decoded); |
| 357 | |
| 358 if (m.find()) { | |
| 359 { | |
| 360 JSONObject jo = new JSONObject(); | |
| 10 | 361 @SuppressWarnings("unused") |
| 3 | 362 String unit = m.group(1); |
| 363 jo.put("x", m.group(2)); | |
| 364 jo.put("y", m.group(3)); | |
| 365 jo.put("width", m.group(4)); | |
| 366 jo.put("height", m.group(5)); | |
| 367 ja.put(jo); | |
| 368 } | |
| 369 } | |
| 370 } | |
| 371 } catch (JSONException e) { | |
| 372 // TODO Auto-generated catch block | |
| 373 e.printStackTrace(); | |
| 374 } | |
| 375 return ja; | |
| 376 } | |
| 377 | |
| 5 | 378 protected String parseArea(JSONObject area) throws JSONException { |
| 4 | 379 String x = area.getString("x"); |
| 380 String y = area.getString("y"); | |
| 381 String width = "0"; | |
| 382 String height = "0"; | |
| 383 if (area.has("width")) { | |
| 384 width = area.getString("width"); | |
| 385 height = area.getString("height"); | |
| 386 } | |
| 5 | 387 String fragment = String.format("xywh=fraction:%s,%s,%s,%s", x, y, width, height); |
| 4 | 388 return fragment; |
| 389 } | |
| 390 | |
| 5 | 391 protected String parseRange(JSONObject range) throws JSONException { |
| 4 | 392 String start = range.getString("start"); |
| 393 String end = range.getString("end"); | |
| 394 String startOffset = range.getString("startOffset"); | |
| 395 String endOffset = range.getString("endOffset"); | |
| 396 | |
| 5 | 397 String fragment = String.format( |
| 4 | 398 "xpointer(start-point(string-range(\"%s\",%s,1))/range-to(end-point(string-range(\"%s\",%s,1))))", start, |
| 5 | 399 startOffset, end, endOffset); |
| 4 | 400 return fragment; |
| 401 } | |
| 402 | |
| 3 | 403 /** |
| 5 | 404 * Creates an Annotation object with data from JSON. |
| 3 | 405 * |
| 4 | 406 * uses the specification from the annotator project: {@link https |
| 407 * ://github.com/okfn/annotator/wiki/Annotation-format} | |
| 3 | 408 * |
| 4 | 409 * The username will be transformed to an URI if not given already as URI, |
| 410 * if not it will set to the MPIWG namespace defined in | |
| 3 | 411 * de.mpiwg.itgroup.annotationManager.Constants.NS |
| 412 * | |
| 413 * @param jo | |
| 414 * @return | |
| 415 * @throws JSONException | |
| 4 | 416 * @throws UnsupportedEncodingException |
| 3 | 417 */ |
| 4 | 418 public Annotation createAnnotation(JSONObject jo, Representation entity) throws JSONException, UnsupportedEncodingException { |
| 3 | 419 return updateAnnotation(new Annotation(), jo, entity); |
| 420 } | |
| 421 | |
| 5 | 422 /** |
| 423 * Updates an Annotation object with data from JSON. | |
| 424 * | |
| 425 * uses the specification from the annotator project: {@link https | |
| 426 * ://github.com/okfn/annotator/wiki/Annotation-format} | |
| 427 * | |
| 428 * The username will be transformed to an URI if not given already as URI, | |
| 429 * if not it will set to the MPIWG namespace defined in | |
| 430 * de.mpiwg.itgroup.annotationManager.Constants.NS | |
| 431 * | |
| 432 * @param annot | |
| 433 * @param jo | |
| 434 * @return | |
| 435 * @throws JSONException | |
| 436 * @throws UnsupportedEncodingException | |
| 437 */ | |
| 4 | 438 public Annotation updateAnnotation(Annotation annot, JSONObject jo, Representation entity) throws JSONException, |
| 439 UnsupportedEncodingException { | |
| 16 | 440 /* |
| 441 * target uri | |
| 442 */ | |
| 3 | 443 if (jo.has("uri")) { |
| 4 | 444 annot.setTargetBaseUri(jo.getString("uri")); |
| 3 | 445 } |
| 16 | 446 /* |
| 447 * annotation text | |
| 448 */ | |
| 3 | 449 if (jo.has("text")) { |
| 4 | 450 annot.setBodyText(jo.getString("text")); |
| 3 | 451 } |
| 16 | 452 /* |
| 453 * check authentication | |
| 454 */ | |
| 3 | 455 String authUser = checkAuthToken(entity); |
| 456 if (authUser == null) { | |
| 4 | 457 /* |
| 458 * // try http auth User httpUser = getHttpAuthUser(entity); if | |
| 459 * (httpUser == null) { | |
| 460 */ | |
| 461 setStatus(Status.CLIENT_ERROR_FORBIDDEN); | |
| 462 return null; | |
| 463 /* | |
| 464 * } authUser = httpUser.getIdentifier(); | |
| 465 */ | |
| 3 | 466 } |
| 16 | 467 /* |
| 468 * get or create creator object | |
| 469 */ | |
| 9 | 470 Actor creator = annot.getCreator(); |
| 471 if (creator == null) { | |
| 10 | 472 creator = new Person(); |
| 9 | 473 annot.setCreator(creator); |
| 474 } | |
| 3 | 475 // username not required, if no username given authuser will be used |
| 476 String username = null; | |
| 10 | 477 String userUri = creator.getUri(); |
| 3 | 478 if (jo.has("user")) { |
| 479 if (jo.get("user") instanceof String) { | |
| 480 // user is just a String | |
| 481 username = jo.getString("user"); | |
| 10 | 482 creator.setId(username); |
| 3 | 483 // TODO: what if username and authUser are different? |
| 484 } else { | |
| 485 // user is an object | |
| 486 JSONObject user = jo.getJSONObject("user"); | |
| 487 if (user.has("id")) { | |
| 10 | 488 String id = user.getString("id"); |
| 489 creator.setId(id); | |
| 490 username = id; | |
| 3 | 491 } |
| 492 if (user.has("uri")) { | |
| 493 userUri = user.getString("uri"); | |
| 494 } | |
| 495 } | |
| 496 } | |
| 497 if (username == null) { | |
| 498 username = authUser; | |
| 499 } | |
| 5 | 500 // try to get full name |
| 9 | 501 if (creator.getName() == null && username != null) { |
| 5 | 502 RestServer restServer = (RestServer) getApplication(); |
| 503 String fullName = restServer.getFullNameFromLdap(username); | |
| 9 | 504 creator.setName(fullName); |
| 5 | 505 } |
| 506 // userUri should be a URI, if not it will set to the MPIWG namespace | |
| 3 | 507 if (userUri == null) { |
| 508 if (username.startsWith("http")) { | |
| 509 userUri = username; | |
| 510 } else { | |
| 511 userUri = NS.MPIWG_PERSONS_URL + username; | |
| 512 } | |
| 513 } | |
| 514 // TODO: should we overwrite the creator? | |
| 9 | 515 if (creator.getUri() == null) { |
| 516 creator.setUri(userUri); | |
| 5 | 517 } |
| 16 | 518 /* |
| 519 * creation date | |
| 520 */ | |
| 5 | 521 if (annot.getCreated() == null) { |
| 522 // set creation date | |
| 523 SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'"); | |
| 524 String ct = format.format(Calendar.getInstance().getTime()); | |
| 525 annot.setCreated(ct); | |
| 526 } | |
| 3 | 527 |
| 16 | 528 /* |
| 529 * create xpointer from the first range/area | |
| 530 */ | |
| 3 | 531 if (jo.has("ranges")) { |
| 532 JSONObject ranges = jo.getJSONArray("ranges").getJSONObject(0); | |
| 4 | 533 annot.setFragmentType(FragmentTypes.XPOINTER); |
| 534 String fragment = parseRange(ranges); | |
| 535 annot.setTargetFragment(fragment); | |
| 3 | 536 } |
| 537 if (jo.has("areas")) { | |
| 538 JSONObject area = jo.getJSONArray("areas").getJSONObject(0); | |
| 4 | 539 annot.setFragmentType(FragmentTypes.AREA); |
| 540 String fragment = parseArea(area); | |
| 541 annot.setTargetFragment(fragment); | |
| 3 | 542 } |
| 10 | 543 |
| 16 | 544 /* |
| 545 * permissions | |
| 546 */ | |
| 10 | 547 if (jo.has("permissions")) { |
| 548 JSONObject permissions = jo.getJSONObject("permissions"); | |
| 549 if (permissions.has("admin")) { | |
| 550 JSONArray perms = permissions.getJSONArray("admin"); | |
| 551 Actor actor = getActorFromPermissions(perms); | |
| 552 annot.setAdminPermission(actor); | |
| 553 } | |
| 554 if (permissions.has("delete")) { | |
| 555 JSONArray perms = permissions.getJSONArray("delete"); | |
| 556 Actor actor = getActorFromPermissions(perms); | |
| 557 annot.setDeletePermission(actor); | |
| 558 } | |
| 559 if (permissions.has("update")) { | |
| 560 JSONArray perms = permissions.getJSONArray("update"); | |
| 561 Actor actor = getActorFromPermissions(perms); | |
| 562 annot.setUpdatePermission(actor); | |
| 563 } | |
| 564 if (permissions.has("read")) { | |
| 565 JSONArray perms = permissions.getJSONArray("read"); | |
| 566 Actor actor = getActorFromPermissions(perms); | |
| 567 annot.setReadPermission(actor); | |
| 568 } | |
| 569 } | |
| 570 | |
| 16 | 571 /* |
| 572 * tags | |
| 573 */ | |
| 574 if (jo.has("tags")) { | |
| 575 HashSet<String> tagset = new HashSet<String>(); | |
| 576 JSONArray tags = jo.getJSONArray("tags"); | |
| 577 for (int i = 0; i < tags.length(); ++i) { | |
| 578 tagset.add(tags.getString(i)); | |
| 579 } | |
| 580 annot.setTags(tagset); | |
| 581 } | |
| 582 | |
| 583 | |
| 4 | 584 return annot; |
| 3 | 585 } |
| 586 | |
| 15 | 587 @SuppressWarnings("unused") // i in for loop |
| 10 | 588 protected Actor getActorFromPermissions(JSONArray perms) throws JSONException { |
| 589 Actor actor = null; | |
| 590 for (int i = 0; i < perms.length(); ++i) { | |
| 591 String perm = perms.getString(i); | |
| 592 if (perm.toLowerCase().startsWith("group:")) { | |
| 593 String groupId = perm.substring(6); | |
| 594 actor = new Group(groupId); | |
| 595 } else { | |
| 596 actor = new Person(perm); | |
| 597 } | |
| 598 // we just take the first one | |
| 599 break; | |
| 600 } | |
| 601 return actor; | |
| 602 } | |
| 603 | |
| 3 | 604 } |