Mercurial > hg > AnnotationManagerN4J
annotate src/main/java/de/mpiwg/itgroup/annotations/restlet/AnnotatorResourceImpl.java @ 14:629e15b345aa
permissions mostly work. need more server-side checking.
| author | casties |
|---|---|
| date | Fri, 13 Jul 2012 20:41:02 +0200 |
| parents | 90911b2da322 |
| children | 58357a4b86de |
| 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; |
| 3 | 12 import java.util.List; |
| 13 import java.util.regex.Matcher; | |
| 14 import java.util.regex.Pattern; | |
| 15 | |
| 4 | 16 import javax.servlet.ServletContext; |
| 17 | |
| 3 | 18 import net.oauth.jsontoken.Checker; |
| 19 import net.oauth.jsontoken.JsonToken; | |
| 20 import net.oauth.jsontoken.JsonTokenParser; | |
| 21 import net.oauth.jsontoken.SystemClock; | |
| 22 import net.oauth.jsontoken.crypto.HmacSHA256Verifier; | |
| 23 import net.oauth.jsontoken.crypto.Verifier; | |
| 24 | |
| 25 import org.apache.commons.codec.binary.Base64; | |
| 26 import org.apache.log4j.Logger; | |
| 27 import org.json.JSONArray; | |
| 28 import org.json.JSONException; | |
| 29 import org.json.JSONObject; | |
| 30 import org.restlet.data.Form; | |
| 31 import org.restlet.data.Status; | |
| 32 import org.restlet.representation.Representation; | |
| 33 import org.restlet.resource.Options; | |
| 34 import org.restlet.resource.ServerResource; | |
| 35 | |
| 9 | 36 import de.mpiwg.itgroup.annotations.Actor; |
| 4 | 37 import de.mpiwg.itgroup.annotations.Annotation; |
| 38 import de.mpiwg.itgroup.annotations.Annotation.FragmentTypes; | |
| 10 | 39 import de.mpiwg.itgroup.annotations.Group; |
| 40 import de.mpiwg.itgroup.annotations.Person; | |
| 4 | 41 import de.mpiwg.itgroup.annotations.neo4j.AnnotationStore; |
| 42 import de.mpiwg.itgroup.annotations.old.NS; | |
| 3 | 43 |
| 44 /** | |
| 45 * Base class for Annotator resource classes. | |
| 46 * | |
| 47 * @author dwinter, casties | |
| 48 * | |
| 49 */ | |
| 50 public abstract class AnnotatorResourceImpl extends ServerResource { | |
| 51 | |
| 4 | 52 protected static Logger logger = Logger.getLogger(AnnotatorResourceImpl.class); |
| 53 | |
| 54 private AnnotationStore store; | |
| 3 | 55 |
| 56 protected String getAllowedMethodsForHeader() { | |
| 57 return "OPTIONS,GET,POST"; | |
| 58 } | |
| 59 | |
| 4 | 60 protected AnnotationStore getAnnotationStore() { |
| 61 if (store == null) { | |
| 62 ServletContext sc = (ServletContext) getContext().getServerDispatcher().getContext().getAttributes() | |
| 63 .get("org.restlet.ext.servlet.ServletContext"); | |
| 64 logger.debug("Getting AnnotationStore from Context"); | |
| 65 store = (AnnotationStore) sc.getAttribute(RestServer.ANNSTORE_KEY); | |
| 66 } | |
| 67 return store; | |
| 68 } | |
| 69 | |
| 3 | 70 public String encodeJsonId(String id) { |
| 71 try { | |
| 72 return Base64.encodeBase64URLSafeString(id.getBytes("UTF-8")); | |
| 73 } catch (UnsupportedEncodingException e) { | |
| 74 return null; | |
| 75 } | |
| 76 } | |
| 77 | |
| 78 public String decodeJsonId(String id) { | |
| 79 try { | |
| 80 return new String(Base64.decodeBase64(id), "UTF-8"); | |
| 81 } catch (UnsupportedEncodingException e) { | |
| 82 return null; | |
| 83 } | |
| 84 } | |
| 85 | |
| 86 /** | |
| 87 * Handle options request to allow CORS for AJAX. | |
| 88 * | |
| 89 * @param entity | |
| 90 */ | |
| 91 @Options | |
| 92 public void doOptions(Representation entity) { | |
| 93 logger.debug("AnnotatorResourceImpl doOptions!"); | |
| 94 setCorsHeaders(); | |
| 95 } | |
| 96 | |
| 97 /** | |
| 98 * set headers to allow CORS for AJAX. | |
| 99 */ | |
| 100 protected void setCorsHeaders() { | |
| 101 Form responseHeaders = (Form) getResponse().getAttributes().get("org.restlet.http.headers"); | |
| 102 if (responseHeaders == null) { | |
| 103 responseHeaders = new Form(); | |
| 104 getResponse().getAttributes().put("org.restlet.http.headers", responseHeaders); | |
| 105 } | |
| 106 responseHeaders.add("Access-Control-Allow-Methods", getAllowedMethodsForHeader()); | |
| 107 // echo back Origin and Request-Headers | |
| 108 Form requestHeaders = (Form) getRequest().getAttributes().get("org.restlet.http.headers"); | |
| 109 String origin = requestHeaders.getFirstValue("Origin", true); | |
| 110 if (origin == null) { | |
| 111 responseHeaders.add("Access-Control-Allow-Origin", "*"); | |
| 112 } else { | |
| 113 responseHeaders.add("Access-Control-Allow-Origin", origin); | |
| 114 } | |
| 115 String allowHeaders = requestHeaders.getFirstValue("Access-Control-Request-Headers", true); | |
| 116 if (allowHeaders != null) { | |
| 117 responseHeaders.add("Access-Control-Allow-Headers", allowHeaders); | |
| 118 } | |
| 119 responseHeaders.add("Access-Control-Allow-Credentials", "true"); | |
| 120 responseHeaders.add("Access-Control-Max-Age", "60"); | |
| 121 } | |
| 122 | |
| 123 /** | |
| 124 * returns if authentication information from headers is valid. | |
| 125 * | |
| 126 * @param entity | |
| 127 * @return | |
| 128 */ | |
| 129 public boolean isAuthenticated(Representation entity) { | |
| 130 return (checkAuthToken(entity) != null); | |
| 131 } | |
| 132 | |
| 133 /** | |
| 4 | 134 * checks Annotator Auth plugin authentication information from headers. |
| 135 * returns userId if successful. | |
| 3 | 136 * |
| 137 * @param entity | |
| 138 * @return | |
| 139 */ | |
| 140 public String checkAuthToken(Representation entity) { | |
| 141 Form requestHeaders = (Form) getRequest().getAttributes().get("org.restlet.http.headers"); | |
| 142 String authToken = requestHeaders.getFirstValue("x-annotator-auth-token", true); | |
|
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143 if (authToken == null) return null; |
| 3 | 144 // decode token first to get consumer key |
| 145 JsonToken token = new JsonTokenParser(null, null).deserialize(authToken); | |
| 146 String userId = token.getParamAsPrimitive("userId").getAsString(); | |
| 147 String consumerKey = token.getParamAsPrimitive("consumerKey").getAsString(); | |
| 148 // get stored consumer secret for key | |
| 149 RestServer restServer = (RestServer) getApplication(); | |
| 150 String consumerSecret = restServer.getConsumerSecret(consumerKey); | |
| 151 logger.debug("requested consumer key=" + consumerKey + " secret=" + consumerSecret); | |
| 152 if (consumerSecret == null) { | |
| 153 return null; | |
| 154 } | |
| 155 // logger.debug(String.format("token=%s tokenString=%s signatureAlgorithm=%s",token,token.getTokenString(),token.getSignatureAlgorithm())); | |
| 156 try { | |
| 157 List<Verifier> verifiers = new ArrayList<Verifier>(); | |
| 158 // we only do HS256 yet | |
| 159 verifiers.add(new HmacSHA256Verifier(consumerSecret.getBytes("UTF-8"))); | |
| 160 // verify token signature(should really be static...) | |
| 161 new JsonTokenParser(new SystemClock(), null, (Checker[]) null).verify(token, verifiers); | |
| 162 } catch (SignatureException e) { | |
| 163 // TODO Auto-generated catch block | |
| 164 e.printStackTrace(); | |
| 165 } catch (InvalidKeyException e) { | |
| 166 // TODO Auto-generated catch block | |
| 167 e.printStackTrace(); | |
| 168 } catch (UnsupportedEncodingException e) { | |
| 169 // TODO Auto-generated catch block | |
| 170 e.printStackTrace(); | |
| 171 } | |
| 172 // must be ok then | |
| 173 logger.debug("auth OK! user=" + userId); | |
| 174 return userId; | |
| 175 } | |
| 176 | |
| 177 /** | |
| 178 * creates Annotator-JSON from an Annotation object. | |
| 179 * | |
| 180 * @param annot | |
|
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181 * @param forAnonymous TODO |
| 3 | 182 * @return |
| 183 */ | |
|
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184 public JSONObject createAnnotatorJson(Annotation annot, boolean forAnonymous) { |
| 5 | 185 // return user as a JSON object (otherwise just as string) |
| 3 | 186 boolean makeUserObject = true; |
| 187 JSONObject jo = new JSONObject(); | |
| 188 try { | |
| 4 | 189 jo.put("text", annot.getBodyText()); |
| 190 jo.put("uri", annot.getTargetBaseUri()); | |
| 3 | 191 |
| 192 if (makeUserObject) { | |
| 193 // create user object | |
| 194 JSONObject userObject = new JSONObject(); | |
| 10 | 195 Actor creator = annot.getCreator(); |
| 3 | 196 // save creator as uri |
| 10 | 197 userObject.put("uri", creator.getUri()); |
| 3 | 198 // make short user id |
| 10 | 199 String userId = creator.getIdString(); |
| 9 | 200 // set as id |
| 4 | 201 userObject.put("id", userId); |
| 3 | 202 // get full name |
| 10 | 203 String userName = creator.getName(); |
| 5 | 204 if (userName == null) { |
| 205 RestServer restServer = (RestServer) getApplication(); | |
| 206 userName = restServer.getFullNameFromLdap(userId); | |
| 207 } | |
| 3 | 208 userObject.put("name", userName); |
| 209 // save user object | |
| 210 jo.put("user", userObject); | |
| 211 } else { | |
| 212 // save user as string | |
| 4 | 213 jo.put("user", annot.getCreatorUri()); |
| 3 | 214 } |
| 215 | |
| 4 | 216 if (annot.getTargetFragment() != null) { |
| 3 | 217 // we only look at the first xpointer |
| 4 | 218 List<String> fragments = new ArrayList<String>(); |
| 219 fragments.add(annot.getTargetFragment()); | |
| 220 FragmentTypes xt = annot.getFragmentType(); | |
| 221 if (xt == FragmentTypes.XPOINTER) { | |
| 222 jo.put("ranges", transformToRanges(fragments)); | |
| 223 } else if (xt == FragmentTypes.AREA) { | |
| 224 jo.put("areas", transformToAreas(fragments)); | |
| 3 | 225 } |
| 226 } | |
| 10 | 227 |
| 228 // permissions | |
| 229 JSONObject perms = new JSONObject(); | |
| 230 jo.put("permissions", perms); | |
| 231 // admin | |
| 232 JSONArray adminPerms = new JSONArray(); | |
| 233 perms.put("admin", adminPerms); | |
| 234 Actor adminPerm = annot.getAdminPermission(); | |
| 235 if (adminPerm != null) { | |
| 236 adminPerms.put(adminPerm.getIdString()); | |
|
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permissions mostly work. need more server-side checking.
casties
parents:
10
diff
changeset
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237 } else if (forAnonymous) { |
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diff
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238 // set something because its not allowed for anonymous |
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239 adminPerms.put("not-you"); |
| 10 | 240 } |
| 241 // delete | |
| 242 JSONArray deletePerms = new JSONArray(); | |
| 243 perms.put("delete", deletePerms); | |
| 244 Actor deletePerm = annot.getDeletePermission(); | |
| 245 if (deletePerm != null) { | |
| 246 deletePerms.put(deletePerm.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) { |
|
629e15b345aa
permissions mostly work. need more server-side checking.
casties
parents:
10
diff
changeset
|
248 // set something because its not allowed for anonymous |
|
629e15b345aa
permissions mostly work. need more server-side checking.
casties
parents:
10
diff
changeset
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249 deletePerms.put("not-you"); |
| 10 | 250 } |
| 251 // update | |
| 252 JSONArray updatePerms = new JSONArray(); | |
| 253 perms.put("update", updatePerms); | |
| 254 Actor updatePerm = annot.getUpdatePermission(); | |
| 255 if (updatePerm != null) { | |
| 256 updatePerms.put(updatePerm.getIdString()); | |
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629e15b345aa
permissions mostly work. need more server-side checking.
casties
parents:
10
diff
changeset
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257 } else if (forAnonymous) { |
|
629e15b345aa
permissions mostly work. need more server-side checking.
casties
parents:
10
diff
changeset
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258 // set something because its not allowed for anonymous |
|
629e15b345aa
permissions mostly work. need more server-side checking.
casties
parents:
10
diff
changeset
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259 updatePerms.put("not-you"); |
| 10 | 260 } |
| 261 // read | |
| 262 JSONArray readPerms = new JSONArray(); | |
| 263 perms.put("read", readPerms); | |
| 264 Actor readPerm = annot.getReadPermission(); | |
| 265 if (readPerm != null) { | |
| 266 readPerms.put(readPerm.getIdString()); | |
| 267 } | |
| 268 | |
| 3 | 269 // encode Annotation URL (=id) in base64 |
| 4 | 270 String annotUrl = annot.getUri(); |
| 3 | 271 String annotId = encodeJsonId(annotUrl); |
| 272 jo.put("id", annotId); | |
| 273 return jo; | |
| 274 } catch (JSONException e) { | |
| 275 // TODO Auto-generated catch block | |
| 276 e.printStackTrace(); | |
| 277 } | |
| 278 return null; | |
| 279 } | |
| 280 | |
| 281 private JSONArray transformToRanges(List<String> xpointers) { | |
| 282 | |
| 283 JSONArray ja = new JSONArray(); | |
| 284 | |
| 285 Pattern rg = Pattern | |
| 4 | 286 .compile("xpointer\\(start-point\\(string-range\\(\"([^\"]*)\",([^,]*),1\\)\\)/range-to\\(end-point\\(string-range\\(\"([^\"]*)\",([^,]*),1\\)\\)\\)\\)"); |
| 287 Pattern rg1 = Pattern.compile("xpointer\\(start-point\\(string-range\\(\"([^\"]*)\",([^,]*),1\\)\\)\\)"); | |
| 3 | 288 |
| 289 try { | |
| 290 for (String xpointer : xpointers) { | |
| 10 | 291 // String decoded = URLDecoder.decode(xpointer, "utf-8"); |
| 5 | 292 String decoded = xpointer; |
| 3 | 293 Matcher m = rg.matcher(decoded); |
| 294 | |
| 295 if (m.find()) { | |
| 296 { | |
| 297 JSONObject jo = new JSONObject(); | |
| 298 jo.put("start", m.group(1)); | |
| 299 jo.put("startOffset", m.group(2)); | |
| 300 jo.put("end", m.group(3)); | |
| 301 jo.put("endOffset", m.group(4)); | |
| 302 ja.put(jo); | |
| 303 } | |
| 304 } | |
| 305 m = rg1.matcher(xpointer); | |
| 306 if (m.find()) { | |
| 307 JSONObject jo = new JSONObject(); | |
| 308 jo.put("start", m.group(1)); | |
| 309 jo.put("startOffset", m.group(2)); | |
| 310 | |
| 311 ja.put(jo); | |
| 312 } | |
| 313 } | |
| 314 } catch (JSONException e) { | |
| 315 // TODO Auto-generated catch block | |
| 316 e.printStackTrace(); | |
| 317 } | |
| 318 return ja; | |
| 319 } | |
| 320 | |
| 321 private JSONArray transformToAreas(List<String> xpointers) { | |
| 322 | |
| 323 JSONArray ja = new JSONArray(); | |
| 324 | |
| 4 | 325 Pattern rg = Pattern.compile("xywh=(\\w*:)([\\d\\.]+),([\\d\\.]+),([\\d\\.]+),([\\d\\.]+)"); |
| 3 | 326 |
| 327 try { | |
| 328 for (String xpointer : xpointers) { | |
| 10 | 329 // String decoded = URLDecoder.decode(xpointer, "utf-8"); |
| 5 | 330 String decoded = xpointer; |
| 3 | 331 Matcher m = rg.matcher(decoded); |
| 332 | |
| 333 if (m.find()) { | |
| 334 { | |
| 335 JSONObject jo = new JSONObject(); | |
| 10 | 336 @SuppressWarnings("unused") |
| 3 | 337 String unit = m.group(1); |
| 338 jo.put("x", m.group(2)); | |
| 339 jo.put("y", m.group(3)); | |
| 340 jo.put("width", m.group(4)); | |
| 341 jo.put("height", m.group(5)); | |
| 342 ja.put(jo); | |
| 343 } | |
| 344 } | |
| 345 } | |
| 346 } catch (JSONException e) { | |
| 347 // TODO Auto-generated catch block | |
| 348 e.printStackTrace(); | |
| 349 } | |
| 350 return ja; | |
| 351 } | |
| 352 | |
| 5 | 353 protected String parseArea(JSONObject area) throws JSONException { |
| 4 | 354 String x = area.getString("x"); |
| 355 String y = area.getString("y"); | |
| 356 String width = "0"; | |
| 357 String height = "0"; | |
| 358 if (area.has("width")) { | |
| 359 width = area.getString("width"); | |
| 360 height = area.getString("height"); | |
| 361 } | |
| 5 | 362 String fragment = String.format("xywh=fraction:%s,%s,%s,%s", x, y, width, height); |
| 4 | 363 return fragment; |
| 364 } | |
| 365 | |
| 5 | 366 protected String parseRange(JSONObject range) throws JSONException { |
| 4 | 367 String start = range.getString("start"); |
| 368 String end = range.getString("end"); | |
| 369 String startOffset = range.getString("startOffset"); | |
| 370 String endOffset = range.getString("endOffset"); | |
| 371 | |
| 5 | 372 String fragment = String.format( |
| 4 | 373 "xpointer(start-point(string-range(\"%s\",%s,1))/range-to(end-point(string-range(\"%s\",%s,1))))", start, |
| 5 | 374 startOffset, end, endOffset); |
| 4 | 375 return fragment; |
| 376 } | |
| 377 | |
| 3 | 378 /** |
| 5 | 379 * Creates an Annotation object with data from JSON. |
| 3 | 380 * |
| 4 | 381 * uses the specification from the annotator project: {@link https |
| 382 * ://github.com/okfn/annotator/wiki/Annotation-format} | |
| 3 | 383 * |
| 4 | 384 * The username will be transformed to an URI if not given already as URI, |
| 385 * if not it will set to the MPIWG namespace defined in | |
| 3 | 386 * de.mpiwg.itgroup.annotationManager.Constants.NS |
| 387 * | |
| 388 * @param jo | |
| 389 * @return | |
| 390 * @throws JSONException | |
| 4 | 391 * @throws UnsupportedEncodingException |
| 3 | 392 */ |
| 4 | 393 public Annotation createAnnotation(JSONObject jo, Representation entity) throws JSONException, UnsupportedEncodingException { |
| 3 | 394 return updateAnnotation(new Annotation(), jo, entity); |
| 395 } | |
| 396 | |
| 5 | 397 /** |
| 398 * Updates an Annotation object with data from JSON. | |
| 399 * | |
| 400 * uses the specification from the annotator project: {@link https | |
| 401 * ://github.com/okfn/annotator/wiki/Annotation-format} | |
| 402 * | |
| 403 * The username will be transformed to an URI if not given already as URI, | |
| 404 * if not it will set to the MPIWG namespace defined in | |
| 405 * de.mpiwg.itgroup.annotationManager.Constants.NS | |
| 406 * | |
| 407 * @param annot | |
| 408 * @param jo | |
| 409 * @return | |
| 410 * @throws JSONException | |
| 411 * @throws UnsupportedEncodingException | |
| 412 */ | |
| 4 | 413 public Annotation updateAnnotation(Annotation annot, JSONObject jo, Representation entity) throws JSONException, |
| 414 UnsupportedEncodingException { | |
| 5 | 415 // target uri |
| 3 | 416 if (jo.has("uri")) { |
| 4 | 417 annot.setTargetBaseUri(jo.getString("uri")); |
| 3 | 418 } |
| 419 // annotation text | |
| 420 if (jo.has("text")) { | |
| 4 | 421 annot.setBodyText(jo.getString("text")); |
| 3 | 422 } |
| 423 // check authentication | |
| 424 String authUser = checkAuthToken(entity); | |
| 425 if (authUser == null) { | |
| 4 | 426 /* |
| 427 * // try http auth User httpUser = getHttpAuthUser(entity); if | |
| 428 * (httpUser == null) { | |
| 429 */ | |
| 430 setStatus(Status.CLIENT_ERROR_FORBIDDEN); | |
| 431 return null; | |
| 432 /* | |
| 433 * } authUser = httpUser.getIdentifier(); | |
| 434 */ | |
| 3 | 435 } |
| 9 | 436 // get or create creator object |
| 437 Actor creator = annot.getCreator(); | |
| 438 if (creator == null) { | |
| 10 | 439 creator = new Person(); |
| 9 | 440 annot.setCreator(creator); |
| 441 } | |
| 3 | 442 // username not required, if no username given authuser will be used |
| 443 String username = null; | |
| 10 | 444 String userUri = creator.getUri(); |
| 3 | 445 if (jo.has("user")) { |
| 446 if (jo.get("user") instanceof String) { | |
| 447 // user is just a String | |
| 448 username = jo.getString("user"); | |
| 10 | 449 creator.setId(username); |
| 3 | 450 // TODO: what if username and authUser are different? |
| 451 } else { | |
| 452 // user is an object | |
| 453 JSONObject user = jo.getJSONObject("user"); | |
| 454 if (user.has("id")) { | |
| 10 | 455 String id = user.getString("id"); |
| 456 creator.setId(id); | |
| 457 username = id; | |
| 3 | 458 } |
| 459 if (user.has("uri")) { | |
| 460 userUri = user.getString("uri"); | |
| 461 } | |
| 462 } | |
| 463 } | |
| 464 if (username == null) { | |
| 465 username = authUser; | |
| 466 } | |
| 5 | 467 // try to get full name |
| 9 | 468 if (creator.getName() == null && username != null) { |
| 5 | 469 RestServer restServer = (RestServer) getApplication(); |
| 470 String fullName = restServer.getFullNameFromLdap(username); | |
| 9 | 471 creator.setName(fullName); |
| 5 | 472 } |
| 473 // userUri should be a URI, if not it will set to the MPIWG namespace | |
| 3 | 474 if (userUri == null) { |
| 475 if (username.startsWith("http")) { | |
| 476 userUri = username; | |
| 477 } else { | |
| 478 userUri = NS.MPIWG_PERSONS_URL + username; | |
| 479 } | |
| 480 } | |
| 481 // TODO: should we overwrite the creator? | |
| 9 | 482 if (creator.getUri() == null) { |
| 483 creator.setUri(userUri); | |
| 5 | 484 } |
| 10 | 485 |
| 5 | 486 if (annot.getCreated() == null) { |
| 487 // set creation date | |
| 488 SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'"); | |
| 489 String ct = format.format(Calendar.getInstance().getTime()); | |
| 490 annot.setCreated(ct); | |
| 491 } | |
| 3 | 492 |
| 493 // create xpointer from the first range/area | |
| 494 if (jo.has("ranges")) { | |
| 495 JSONObject ranges = jo.getJSONArray("ranges").getJSONObject(0); | |
| 4 | 496 annot.setFragmentType(FragmentTypes.XPOINTER); |
| 497 String fragment = parseRange(ranges); | |
| 498 annot.setTargetFragment(fragment); | |
| 3 | 499 } |
| 500 if (jo.has("areas")) { | |
| 501 JSONObject area = jo.getJSONArray("areas").getJSONObject(0); | |
| 4 | 502 annot.setFragmentType(FragmentTypes.AREA); |
| 503 String fragment = parseArea(area); | |
| 504 annot.setTargetFragment(fragment); | |
| 3 | 505 } |
| 10 | 506 |
| 507 // permissions | |
| 508 if (jo.has("permissions")) { | |
| 509 JSONObject permissions = jo.getJSONObject("permissions"); | |
| 510 if (permissions.has("admin")) { | |
| 511 JSONArray perms = permissions.getJSONArray("admin"); | |
| 512 Actor actor = getActorFromPermissions(perms); | |
| 513 annot.setAdminPermission(actor); | |
| 514 } | |
| 515 if (permissions.has("delete")) { | |
| 516 JSONArray perms = permissions.getJSONArray("delete"); | |
| 517 Actor actor = getActorFromPermissions(perms); | |
| 518 annot.setDeletePermission(actor); | |
| 519 } | |
| 520 if (permissions.has("update")) { | |
| 521 JSONArray perms = permissions.getJSONArray("update"); | |
| 522 Actor actor = getActorFromPermissions(perms); | |
| 523 annot.setUpdatePermission(actor); | |
| 524 } | |
| 525 if (permissions.has("read")) { | |
| 526 JSONArray perms = permissions.getJSONArray("read"); | |
| 527 Actor actor = getActorFromPermissions(perms); | |
| 528 annot.setReadPermission(actor); | |
| 529 } | |
| 530 } | |
| 531 | |
| 4 | 532 return annot; |
| 3 | 533 } |
| 534 | |
| 10 | 535 @SuppressWarnings("unused") |
| 536 protected Actor getActorFromPermissions(JSONArray perms) throws JSONException { | |
| 537 Actor actor = null; | |
| 538 for (int i = 0; i < perms.length(); ++i) { | |
| 539 String perm = perms.getString(i); | |
| 540 if (perm.toLowerCase().startsWith("group:")) { | |
| 541 String groupId = perm.substring(6); | |
| 542 actor = new Group(groupId); | |
| 543 } else { | |
| 544 actor = new Person(perm); | |
| 545 } | |
| 546 // we just take the first one | |
| 547 break; | |
| 548 } | |
| 549 return actor; | |
| 550 } | |
| 551 | |
| 3 | 552 } |