Mercurial > hg > AnnotationManagerN4J
annotate src/main/java/de/mpiwg/itgroup/annotations/restlet/AnnotatorResourceImpl.java @ 58:f5c0e6df7e88
made uri prefixes in store configurable.
| author | casties |
|---|---|
| date | Tue, 20 Nov 2012 18:23:52 +0100 |
| parents | 4efb21cf0ce0 |
| children | b8ef15c8c4a5 |
| 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 | |
| 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; | |
|
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41 import de.mpiwg.itgroup.annotations.Resource; |
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42 import de.mpiwg.itgroup.annotations.Target; |
| 4 | 43 import de.mpiwg.itgroup.annotations.neo4j.AnnotationStore; |
| 3 | 44 |
| 45 /** | |
| 46 * Base class for Annotator resource classes. | |
| 47 * | |
| 48 * @author dwinter, casties | |
| 49 * | |
| 50 */ | |
| 51 public abstract class AnnotatorResourceImpl extends ServerResource { | |
| 52 | |
| 4 | 53 protected static Logger logger = Logger.getLogger(AnnotatorResourceImpl.class); |
| 54 | |
| 55 private AnnotationStore store; | |
| 3 | 56 |
| 57 protected String getAllowedMethodsForHeader() { | |
| 58 return "OPTIONS,GET,POST"; | |
| 59 } | |
| 60 | |
| 4 | 61 protected AnnotationStore getAnnotationStore() { |
| 62 if (store == null) { | |
| 19 | 63 store = ((BaseRestlet) getApplication()).getAnnotationStore(); |
| 4 | 64 } |
| 65 return store; | |
| 66 } | |
| 67 | |
| 3 | 68 public String encodeJsonId(String id) { |
| 22 | 69 if (id == null) return null; |
| 3 | 70 try { |
| 71 return Base64.encodeBase64URLSafeString(id.getBytes("UTF-8")); | |
| 72 } catch (UnsupportedEncodingException e) { | |
| 73 return null; | |
| 74 } | |
| 75 } | |
| 76 | |
| 77 public String decodeJsonId(String id) { | |
| 22 | 78 if (id == null) return null; |
| 3 | 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 /** | |
|
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134 * Checks Annotator Auth plugin authentication information from headers. |
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135 * Returns userId if successful. Returns "anonymous" in non-authorization mode. |
| 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) { |
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144 if (!((BaseRestlet) getApplication()).isAuthorizationMode()) { |
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145 return "anonymous"; |
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146 } |
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147 return null; |
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148 } |
| 3 | 149 // decode token first to get consumer key |
| 150 JsonToken token = new JsonTokenParser(null, null).deserialize(authToken); | |
| 151 String userId = token.getParamAsPrimitive("userId").getAsString(); | |
| 152 String consumerKey = token.getParamAsPrimitive("consumerKey").getAsString(); | |
| 153 // get stored consumer secret for key | |
| 18 | 154 BaseRestlet restServer = (BaseRestlet) getApplication(); |
| 3 | 155 String consumerSecret = restServer.getConsumerSecret(consumerKey); |
| 156 logger.debug("requested consumer key=" + consumerKey + " secret=" + consumerSecret); | |
| 157 if (consumerSecret == null) { | |
| 158 return null; | |
| 159 } | |
| 160 // logger.debug(String.format("token=%s tokenString=%s signatureAlgorithm=%s",token,token.getTokenString(),token.getSignatureAlgorithm())); | |
| 161 try { | |
| 162 List<Verifier> verifiers = new ArrayList<Verifier>(); | |
| 163 // we only do HS256 yet | |
| 164 verifiers.add(new HmacSHA256Verifier(consumerSecret.getBytes("UTF-8"))); | |
| 165 // verify token signature(should really be static...) | |
| 166 new JsonTokenParser(new SystemClock(), null, (Checker[]) null).verify(token, verifiers); | |
| 167 } catch (SignatureException e) { | |
| 168 // TODO Auto-generated catch block | |
| 169 e.printStackTrace(); | |
| 170 } catch (InvalidKeyException e) { | |
| 171 // TODO Auto-generated catch block | |
| 172 e.printStackTrace(); | |
| 173 } catch (UnsupportedEncodingException e) { | |
| 174 // TODO Auto-generated catch block | |
| 175 e.printStackTrace(); | |
| 176 } | |
| 177 // must be ok then | |
| 178 logger.debug("auth OK! user=" + userId); | |
| 179 return userId; | |
| 180 } | |
| 181 | |
| 182 /** | |
| 183 * creates Annotator-JSON from an Annotation object. | |
| 184 * | |
| 185 * @param annot | |
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186 * @param forAnonymous TODO |
| 3 | 187 * @return |
| 188 */ | |
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189 public JSONObject createAnnotatorJson(Annotation annot, boolean forAnonymous) { |
| 5 | 190 // return user as a JSON object (otherwise just as string) |
| 3 | 191 boolean makeUserObject = true; |
| 192 JSONObject jo = new JSONObject(); | |
| 193 try { | |
| 4 | 194 jo.put("text", annot.getBodyText()); |
| 195 jo.put("uri", annot.getTargetBaseUri()); | |
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196 if (annot.getResourceUri() != null) { |
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197 jo.put("resource", annot.getResourceUri()); |
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198 } |
| 3 | 199 |
| 16 | 200 /* |
| 201 * user | |
| 202 */ | |
| 3 | 203 if (makeUserObject) { |
| 204 // create user object | |
| 205 JSONObject userObject = new JSONObject(); | |
| 10 | 206 Actor creator = annot.getCreator(); |
| 3 | 207 // save creator as uri |
| 10 | 208 userObject.put("uri", creator.getUri()); |
| 3 | 209 // make short user id |
| 10 | 210 String userId = creator.getIdString(); |
| 9 | 211 // set as id |
| 4 | 212 userObject.put("id", userId); |
| 3 | 213 // get full name |
| 10 | 214 String userName = creator.getName(); |
| 5 | 215 if (userName == null) { |
| 18 | 216 BaseRestlet restServer = (BaseRestlet) getApplication(); |
| 5 | 217 userName = restServer.getFullNameFromLdap(userId); |
| 218 } | |
| 3 | 219 userObject.put("name", userName); |
| 220 // save user object | |
| 221 jo.put("user", userObject); | |
| 222 } else { | |
| 223 // save user as string | |
| 4 | 224 jo.put("user", annot.getCreatorUri()); |
| 3 | 225 } |
| 226 | |
| 16 | 227 /* |
| 228 * ranges | |
| 229 */ | |
| 4 | 230 if (annot.getTargetFragment() != null) { |
| 3 | 231 // we only look at the first xpointer |
| 4 | 232 List<String> fragments = new ArrayList<String>(); |
| 233 fragments.add(annot.getTargetFragment()); | |
| 234 FragmentTypes xt = annot.getFragmentType(); | |
| 235 if (xt == FragmentTypes.XPOINTER) { | |
| 236 jo.put("ranges", transformToRanges(fragments)); | |
| 237 } else if (xt == FragmentTypes.AREA) { | |
| 238 jo.put("areas", transformToAreas(fragments)); | |
| 3 | 239 } |
| 240 } | |
| 10 | 241 |
| 16 | 242 /* |
| 243 * permissions | |
| 244 */ | |
| 10 | 245 JSONObject perms = new JSONObject(); |
| 246 jo.put("permissions", perms); | |
| 247 // admin | |
| 248 JSONArray adminPerms = new JSONArray(); | |
| 249 perms.put("admin", adminPerms); | |
| 250 Actor adminPerm = annot.getAdminPermission(); | |
| 251 if (adminPerm != null) { | |
| 252 adminPerms.put(adminPerm.getIdString()); | |
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253 } else if (forAnonymous) { |
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254 // set something because its not allowed for anonymous |
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255 adminPerms.put("not-you"); |
| 10 | 256 } |
| 257 // delete | |
| 258 JSONArray deletePerms = new JSONArray(); | |
| 259 perms.put("delete", deletePerms); | |
| 260 Actor deletePerm = annot.getDeletePermission(); | |
| 261 if (deletePerm != null) { | |
| 262 deletePerms.put(deletePerm.getIdString()); | |
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263 } else if (forAnonymous) { |
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264 // set something because its not allowed for anonymous |
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265 deletePerms.put("not-you"); |
| 10 | 266 } |
| 267 // update | |
| 268 JSONArray updatePerms = new JSONArray(); | |
| 269 perms.put("update", updatePerms); | |
| 270 Actor updatePerm = annot.getUpdatePermission(); | |
| 271 if (updatePerm != null) { | |
| 272 updatePerms.put(updatePerm.getIdString()); | |
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273 } else if (forAnonymous) { |
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274 // set something because its not allowed for anonymous |
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275 updatePerms.put("not-you"); |
| 10 | 276 } |
| 277 // read | |
| 278 JSONArray readPerms = new JSONArray(); | |
| 279 perms.put("read", readPerms); | |
| 280 Actor readPerm = annot.getReadPermission(); | |
| 281 if (readPerm != null) { | |
| 282 readPerms.put(readPerm.getIdString()); | |
| 283 } | |
| 284 | |
| 16 | 285 /* |
| 286 * tags | |
| 287 */ | |
| 288 Set<String> tagset = annot.getTags(); | |
| 289 if (tagset != null) { | |
| 290 JSONArray tags = new JSONArray(); | |
| 291 jo.put("tags", tags); | |
| 292 for (String tag : tagset) { | |
| 293 tags.put(tag); | |
| 294 } | |
| 295 } | |
| 296 | |
| 297 /* | |
| 298 * id | |
| 299 */ | |
| 3 | 300 // encode Annotation URL (=id) in base64 |
| 4 | 301 String annotUrl = annot.getUri(); |
| 3 | 302 String annotId = encodeJsonId(annotUrl); |
| 303 jo.put("id", annotId); | |
| 304 return jo; | |
| 305 } catch (JSONException e) { | |
| 306 // TODO Auto-generated catch block | |
| 307 e.printStackTrace(); | |
| 308 } | |
| 309 return null; | |
| 310 } | |
| 311 | |
| 312 private JSONArray transformToRanges(List<String> xpointers) { | |
| 313 | |
| 314 JSONArray ja = new JSONArray(); | |
| 315 | |
| 316 Pattern rg = Pattern | |
| 4 | 317 .compile("xpointer\\(start-point\\(string-range\\(\"([^\"]*)\",([^,]*),1\\)\\)/range-to\\(end-point\\(string-range\\(\"([^\"]*)\",([^,]*),1\\)\\)\\)\\)"); |
| 318 Pattern rg1 = Pattern.compile("xpointer\\(start-point\\(string-range\\(\"([^\"]*)\",([^,]*),1\\)\\)\\)"); | |
| 3 | 319 |
| 320 try { | |
| 321 for (String xpointer : xpointers) { | |
| 10 | 322 // String decoded = URLDecoder.decode(xpointer, "utf-8"); |
| 5 | 323 String decoded = xpointer; |
| 3 | 324 Matcher m = rg.matcher(decoded); |
| 325 | |
| 326 if (m.find()) { | |
| 327 { | |
| 328 JSONObject jo = new JSONObject(); | |
| 329 jo.put("start", m.group(1)); | |
| 330 jo.put("startOffset", m.group(2)); | |
| 331 jo.put("end", m.group(3)); | |
| 332 jo.put("endOffset", m.group(4)); | |
| 333 ja.put(jo); | |
| 334 } | |
| 335 } | |
| 336 m = rg1.matcher(xpointer); | |
| 337 if (m.find()) { | |
| 338 JSONObject jo = new JSONObject(); | |
| 339 jo.put("start", m.group(1)); | |
| 340 jo.put("startOffset", m.group(2)); | |
| 341 | |
| 342 ja.put(jo); | |
| 343 } | |
| 344 } | |
| 345 } catch (JSONException e) { | |
| 346 // TODO Auto-generated catch block | |
| 347 e.printStackTrace(); | |
| 348 } | |
| 349 return ja; | |
| 350 } | |
| 351 | |
| 352 private JSONArray transformToAreas(List<String> xpointers) { | |
| 353 | |
| 354 JSONArray ja = new JSONArray(); | |
| 355 | |
| 4 | 356 Pattern rg = Pattern.compile("xywh=(\\w*:)([\\d\\.]+),([\\d\\.]+),([\\d\\.]+),([\\d\\.]+)"); |
| 3 | 357 |
| 358 try { | |
| 359 for (String xpointer : xpointers) { | |
| 10 | 360 // String decoded = URLDecoder.decode(xpointer, "utf-8"); |
| 5 | 361 String decoded = xpointer; |
| 3 | 362 Matcher m = rg.matcher(decoded); |
| 363 | |
| 364 if (m.find()) { | |
| 365 { | |
| 366 JSONObject jo = new JSONObject(); | |
| 10 | 367 @SuppressWarnings("unused") |
| 3 | 368 String unit = m.group(1); |
| 369 jo.put("x", m.group(2)); | |
| 370 jo.put("y", m.group(3)); | |
| 371 jo.put("width", m.group(4)); | |
| 372 jo.put("height", m.group(5)); | |
| 373 ja.put(jo); | |
| 374 } | |
| 375 } | |
| 376 } | |
| 377 } catch (JSONException e) { | |
| 378 // TODO Auto-generated catch block | |
| 379 e.printStackTrace(); | |
| 380 } | |
| 381 return ja; | |
| 382 } | |
| 383 | |
| 5 | 384 protected String parseArea(JSONObject area) throws JSONException { |
| 4 | 385 String x = area.getString("x"); |
| 386 String y = area.getString("y"); | |
| 387 String width = "0"; | |
| 388 String height = "0"; | |
| 389 if (area.has("width")) { | |
| 390 width = area.getString("width"); | |
| 391 height = area.getString("height"); | |
| 392 } | |
| 5 | 393 String fragment = String.format("xywh=fraction:%s,%s,%s,%s", x, y, width, height); |
| 4 | 394 return fragment; |
| 395 } | |
| 396 | |
| 5 | 397 protected String parseRange(JSONObject range) throws JSONException { |
| 4 | 398 String start = range.getString("start"); |
| 399 String end = range.getString("end"); | |
| 400 String startOffset = range.getString("startOffset"); | |
| 401 String endOffset = range.getString("endOffset"); | |
| 402 | |
| 5 | 403 String fragment = String.format( |
| 4 | 404 "xpointer(start-point(string-range(\"%s\",%s,1))/range-to(end-point(string-range(\"%s\",%s,1))))", start, |
| 5 | 405 startOffset, end, endOffset); |
| 4 | 406 return fragment; |
| 407 } | |
| 408 | |
| 3 | 409 /** |
| 5 | 410 * Creates an Annotation object with data from JSON. |
| 3 | 411 * |
| 4 | 412 * uses the specification from the annotator project: {@link https |
| 413 * ://github.com/okfn/annotator/wiki/Annotation-format} | |
| 3 | 414 * |
| 4 | 415 * The username will be transformed to an URI if not given already as URI, |
| 416 * if not it will set to the MPIWG namespace defined in | |
| 3 | 417 * de.mpiwg.itgroup.annotationManager.Constants.NS |
| 418 * | |
| 419 * @param jo | |
| 420 * @return | |
| 421 * @throws JSONException | |
| 4 | 422 * @throws UnsupportedEncodingException |
| 3 | 423 */ |
| 4 | 424 public Annotation createAnnotation(JSONObject jo, Representation entity) throws JSONException, UnsupportedEncodingException { |
| 3 | 425 return updateAnnotation(new Annotation(), jo, entity); |
| 426 } | |
| 427 | |
| 5 | 428 /** |
| 429 * Updates an Annotation object with data from JSON. | |
| 430 * | |
| 431 * uses the specification from the annotator project: {@link https | |
| 432 * ://github.com/okfn/annotator/wiki/Annotation-format} | |
| 433 * | |
| 434 * The username will be transformed to an URI if not given already as URI, | |
| 435 * if not it will set to the MPIWG namespace defined in | |
| 436 * de.mpiwg.itgroup.annotationManager.Constants.NS | |
| 437 * | |
| 438 * @param annot | |
| 439 * @param jo | |
| 440 * @return | |
| 441 * @throws JSONException | |
| 442 * @throws UnsupportedEncodingException | |
| 443 */ | |
| 4 | 444 public Annotation updateAnnotation(Annotation annot, JSONObject jo, Representation entity) throws JSONException, |
| 445 UnsupportedEncodingException { | |
| 16 | 446 /* |
| 447 * target uri | |
| 448 */ | |
| 3 | 449 if (jo.has("uri")) { |
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450 annot.setTarget(new Target(jo.getString("uri"))); |
| 3 | 451 } |
| 16 | 452 /* |
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453 * resource uri |
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454 */ |
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455 if (jo.has("resource")) { |
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456 annot.setResource(new Resource(jo.getString("resource"))); |
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457 } |
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458 /* |
| 16 | 459 * annotation text |
| 460 */ | |
| 3 | 461 if (jo.has("text")) { |
| 4 | 462 annot.setBodyText(jo.getString("text")); |
| 3 | 463 } |
| 16 | 464 /* |
| 465 * check authentication | |
| 466 */ | |
| 3 | 467 String authUser = checkAuthToken(entity); |
| 468 if (authUser == null) { | |
| 4 | 469 /* |
| 470 * // try http auth User httpUser = getHttpAuthUser(entity); if | |
| 471 * (httpUser == null) { | |
| 472 */ | |
| 473 setStatus(Status.CLIENT_ERROR_FORBIDDEN); | |
| 474 return null; | |
| 475 /* | |
| 476 * } authUser = httpUser.getIdentifier(); | |
| 477 */ | |
| 3 | 478 } |
| 16 | 479 /* |
| 480 * get or create creator object | |
| 481 */ | |
| 9 | 482 Actor creator = annot.getCreator(); |
| 483 if (creator == null) { | |
| 10 | 484 creator = new Person(); |
| 9 | 485 annot.setCreator(creator); |
| 486 } | |
| 3 | 487 // username not required, if no username given authuser will be used |
| 488 String username = null; | |
| 10 | 489 String userUri = creator.getUri(); |
| 3 | 490 if (jo.has("user")) { |
| 491 if (jo.get("user") instanceof String) { | |
| 492 // user is just a String | |
| 493 username = jo.getString("user"); | |
| 10 | 494 creator.setId(username); |
| 3 | 495 // TODO: what if username and authUser are different? |
| 496 } else { | |
| 497 // user is an object | |
| 498 JSONObject user = jo.getJSONObject("user"); | |
| 499 if (user.has("id")) { | |
| 10 | 500 String id = user.getString("id"); |
| 501 creator.setId(id); | |
| 502 username = id; | |
| 3 | 503 } |
| 504 if (user.has("uri")) { | |
| 505 userUri = user.getString("uri"); | |
| 506 } | |
| 507 } | |
| 508 } | |
| 509 if (username == null) { | |
| 510 username = authUser; | |
| 511 } | |
| 5 | 512 // try to get full name |
| 9 | 513 if (creator.getName() == null && username != null) { |
| 18 | 514 BaseRestlet restServer = (BaseRestlet) getApplication(); |
| 5 | 515 String fullName = restServer.getFullNameFromLdap(username); |
| 9 | 516 creator.setName(fullName); |
| 5 | 517 } |
| 518 // userUri should be a URI, if not it will set to the MPIWG namespace | |
| 3 | 519 if (userUri == null) { |
| 520 if (username.startsWith("http")) { | |
| 521 userUri = username; | |
| 522 } else { | |
| 58 | 523 userUri = BaseRestlet.PERSONS_URI_PREFIX + username; |
| 3 | 524 } |
| 525 } | |
| 526 // TODO: should we overwrite the creator? | |
| 9 | 527 if (creator.getUri() == null) { |
| 528 creator.setUri(userUri); | |
| 5 | 529 } |
| 16 | 530 /* |
| 531 * creation date | |
| 532 */ | |
| 5 | 533 if (annot.getCreated() == null) { |
| 534 // set creation date | |
| 535 SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'"); | |
| 536 String ct = format.format(Calendar.getInstance().getTime()); | |
| 537 annot.setCreated(ct); | |
| 538 } | |
| 3 | 539 |
| 16 | 540 /* |
| 541 * create xpointer from the first range/area | |
| 542 */ | |
| 52 | 543 try { |
| 544 if (jo.has("ranges")) { | |
| 545 JSONObject ranges = jo.getJSONArray("ranges").getJSONObject(0); | |
| 546 annot.setFragmentType(FragmentTypes.XPOINTER); | |
| 547 String fragment = parseRange(ranges); | |
| 548 annot.setTargetFragment(fragment); | |
| 549 } | |
| 550 } catch (JSONException e) { | |
| 551 // nothing to do | |
| 3 | 552 } |
| 52 | 553 try { |
| 554 if (jo.has("areas")) { | |
| 555 JSONObject area = jo.getJSONArray("areas").getJSONObject(0); | |
| 556 annot.setFragmentType(FragmentTypes.AREA); | |
| 557 String fragment = parseArea(area); | |
| 558 annot.setTargetFragment(fragment); | |
| 559 } | |
| 560 } catch (JSONException e) { | |
| 561 // nothing to do | |
| 3 | 562 } |
| 10 | 563 |
| 16 | 564 /* |
| 565 * permissions | |
| 566 */ | |
| 10 | 567 if (jo.has("permissions")) { |
| 568 JSONObject permissions = jo.getJSONObject("permissions"); | |
| 569 if (permissions.has("admin")) { | |
| 570 JSONArray perms = permissions.getJSONArray("admin"); | |
| 571 Actor actor = getActorFromPermissions(perms); | |
| 572 annot.setAdminPermission(actor); | |
| 573 } | |
| 574 if (permissions.has("delete")) { | |
| 575 JSONArray perms = permissions.getJSONArray("delete"); | |
| 576 Actor actor = getActorFromPermissions(perms); | |
| 577 annot.setDeletePermission(actor); | |
| 578 } | |
| 579 if (permissions.has("update")) { | |
| 580 JSONArray perms = permissions.getJSONArray("update"); | |
| 581 Actor actor = getActorFromPermissions(perms); | |
| 582 annot.setUpdatePermission(actor); | |
| 583 } | |
| 584 if (permissions.has("read")) { | |
| 585 JSONArray perms = permissions.getJSONArray("read"); | |
| 586 Actor actor = getActorFromPermissions(perms); | |
| 587 annot.setReadPermission(actor); | |
| 588 } | |
| 589 } | |
| 590 | |
| 16 | 591 /* |
| 592 * tags | |
| 593 */ | |
| 594 if (jo.has("tags")) { | |
| 595 HashSet<String> tagset = new HashSet<String>(); | |
| 596 JSONArray tags = jo.getJSONArray("tags"); | |
| 597 for (int i = 0; i < tags.length(); ++i) { | |
| 598 tagset.add(tags.getString(i)); | |
| 599 } | |
| 600 annot.setTags(tagset); | |
| 601 } | |
| 602 | |
| 603 | |
| 4 | 604 return annot; |
| 3 | 605 } |
| 606 | |
| 15 | 607 @SuppressWarnings("unused") // i in for loop |
| 10 | 608 protected Actor getActorFromPermissions(JSONArray perms) throws JSONException { |
| 609 Actor actor = null; | |
| 610 for (int i = 0; i < perms.length(); ++i) { | |
| 611 String perm = perms.getString(i); | |
| 612 if (perm.toLowerCase().startsWith("group:")) { | |
| 613 String groupId = perm.substring(6); | |
| 614 actor = new Group(groupId); | |
| 615 } else { | |
| 616 actor = new Person(perm); | |
| 617 } | |
| 618 // we just take the first one | |
| 619 break; | |
| 620 } | |
| 621 return actor; | |
| 622 } | |
| 623 | |
| 3 | 624 } |