| 1 | package be.nikiroo.fanfix.library; |
| 2 | |
| 3 | import java.io.ByteArrayInputStream; |
| 4 | import java.io.IOException; |
| 5 | import java.io.InputStream; |
| 6 | import java.util.ArrayList; |
| 7 | import java.util.HashMap; |
| 8 | import java.util.LinkedList; |
| 9 | import java.util.List; |
| 10 | import java.util.Map; |
| 11 | |
| 12 | import org.json.JSONArray; |
| 13 | import org.json.JSONObject; |
| 14 | |
| 15 | import be.nikiroo.fanfix.Instance; |
| 16 | import be.nikiroo.fanfix.bundles.Config; |
| 17 | import be.nikiroo.fanfix.data.Chapter; |
| 18 | import be.nikiroo.fanfix.data.JsonIO; |
| 19 | import be.nikiroo.fanfix.data.MetaData; |
| 20 | import be.nikiroo.fanfix.data.Paragraph; |
| 21 | import be.nikiroo.fanfix.data.Paragraph.ParagraphType; |
| 22 | import be.nikiroo.fanfix.data.Story; |
| 23 | import be.nikiroo.utils.Image; |
| 24 | import be.nikiroo.utils.LoginResult; |
| 25 | import be.nikiroo.utils.NanoHTTPD; |
| 26 | import be.nikiroo.utils.NanoHTTPD.Response; |
| 27 | import be.nikiroo.utils.NanoHTTPD.Response.Status; |
| 28 | |
| 29 | public class WebLibraryServer extends WebLibraryServerHtml { |
| 30 | class WLoginResult extends LoginResult { |
| 31 | private boolean rw; |
| 32 | private boolean wl; |
| 33 | private boolean bl; |
| 34 | |
| 35 | public WLoginResult(boolean badLogin, boolean badCookie) { |
| 36 | super(badLogin, badCookie); |
| 37 | } |
| 38 | |
| 39 | public WLoginResult(String who, String key, String subkey, boolean rw, |
| 40 | boolean wl, boolean bl) { |
| 41 | super(who, key, subkey, (rw ? "|rw" : "") + (wl ? "|wl" : "") |
| 42 | + (bl ? "|bl" : "") + "|"); |
| 43 | this.rw = rw; |
| 44 | this.wl = wl; |
| 45 | this.bl = bl; |
| 46 | } |
| 47 | |
| 48 | public WLoginResult(String cookie, String who, String key, |
| 49 | List<String> subkeys) { |
| 50 | super(cookie, who, key, subkeys, |
| 51 | subkeys == null || subkeys.isEmpty()); |
| 52 | } |
| 53 | |
| 54 | public boolean isRw() { |
| 55 | return getOption().contains("|rw|"); |
| 56 | } |
| 57 | |
| 58 | public boolean isWl() { |
| 59 | return getOption().contains("|wl|"); |
| 60 | } |
| 61 | |
| 62 | public boolean isBl() { |
| 63 | return getOption().contains("|bl|"); |
| 64 | } |
| 65 | } |
| 66 | |
| 67 | private Map<String, Story> storyCache = new HashMap<String, Story>(); |
| 68 | private LinkedList<String> storyCacheOrder = new LinkedList<String>(); |
| 69 | private long storyCacheSize = 0; |
| 70 | private long maxStoryCacheSize; |
| 71 | |
| 72 | private List<String> whitelist; |
| 73 | private List<String> blacklist; |
| 74 | |
| 75 | public WebLibraryServer(boolean secure) throws IOException { |
| 76 | super(secure); |
| 77 | |
| 78 | int cacheMb = Instance.getInstance().getConfig() |
| 79 | .getInteger(Config.SERVER_MAX_CACHE_MB, 100); |
| 80 | maxStoryCacheSize = cacheMb * 1024 * 1024; |
| 81 | |
| 82 | setTraceHandler(Instance.getInstance().getTraceHandler()); |
| 83 | |
| 84 | whitelist = Instance.getInstance().getConfig() |
| 85 | .getList(Config.SERVER_WHITELIST, new ArrayList<String>()); |
| 86 | blacklist = Instance.getInstance().getConfig() |
| 87 | .getList(Config.SERVER_BLACKLIST, new ArrayList<String>()); |
| 88 | } |
| 89 | |
| 90 | /** |
| 91 | * Start the server (listen on the network for new connections). |
| 92 | * <p> |
| 93 | * Can only be called once. |
| 94 | * <p> |
| 95 | * This call is asynchronous, and will just start a new {@link Thread} on |
| 96 | * itself (see {@link WebLibraryServer#run()}). |
| 97 | */ |
| 98 | public void start() { |
| 99 | new Thread(this).start(); |
| 100 | } |
| 101 | |
| 102 | @Override |
| 103 | protected WLoginResult login(boolean badLogin, boolean badCookie) { |
| 104 | return new WLoginResult(false, false); |
| 105 | } |
| 106 | |
| 107 | @Override |
| 108 | protected WLoginResult login(String who, String cookie) { |
| 109 | List<String> subkeys = Instance.getInstance().getConfig() |
| 110 | .getList(Config.SERVER_ALLOWED_SUBKEYS); |
| 111 | String realKey = Instance.getInstance().getConfig() |
| 112 | .getString(Config.SERVER_KEY); |
| 113 | |
| 114 | return new WLoginResult(cookie, who, realKey, subkeys); |
| 115 | } |
| 116 | |
| 117 | // allow rw/wl |
| 118 | @Override |
| 119 | protected WLoginResult login(String who, String key, String subkey) { |
| 120 | String realKey = Instance.getInstance().getConfig() |
| 121 | .getString(Config.SERVER_KEY, ""); |
| 122 | |
| 123 | // I don't like NULLs... |
| 124 | key = key == null ? "" : key; |
| 125 | subkey = subkey == null ? "" : subkey; |
| 126 | |
| 127 | if (!realKey.equals(key)) { |
| 128 | return new WLoginResult(true, false); |
| 129 | } |
| 130 | |
| 131 | // defaults are true (as previous versions without the feature) |
| 132 | boolean rw = true; |
| 133 | boolean wl = true; |
| 134 | boolean bl = true; |
| 135 | |
| 136 | rw = Instance.getInstance().getConfig().getBoolean(Config.SERVER_RW, |
| 137 | rw); |
| 138 | |
| 139 | List<String> allowed = Instance.getInstance().getConfig().getList( |
| 140 | Config.SERVER_ALLOWED_SUBKEYS, new ArrayList<String>()); |
| 141 | |
| 142 | if (!allowed.isEmpty()) { |
| 143 | if (!allowed.contains(subkey)) { |
| 144 | return new WLoginResult(true, false); |
| 145 | } |
| 146 | |
| 147 | if ((subkey + "|").contains("|rw|")) { |
| 148 | rw = true; |
| 149 | } |
| 150 | if ((subkey + "|").contains("|wl|")) { |
| 151 | wl = false; // |wl| = bypass whitelist |
| 152 | } |
| 153 | if ((subkey + "|").contains("|bl|")) { |
| 154 | bl = false; // |bl| = bypass blacklist |
| 155 | } |
| 156 | } |
| 157 | |
| 158 | return new WLoginResult(who, key, subkey, rw, wl, bl); |
| 159 | } |
| 160 | |
| 161 | @Override |
| 162 | protected Response getList(String uri, WLoginResult login) |
| 163 | throws IOException { |
| 164 | if (WebLibraryUrls.LIST_URL_METADATA.equals(uri)) { |
| 165 | List<JSONObject> jsons = new ArrayList<JSONObject>(); |
| 166 | for (MetaData meta : metas(login)) { |
| 167 | jsons.add(JsonIO.toJson(meta)); |
| 168 | } |
| 169 | |
| 170 | return newInputStreamResponse("application/json", |
| 171 | new ByteArrayInputStream( |
| 172 | new JSONArray(jsons).toString().getBytes())); |
| 173 | } |
| 174 | |
| 175 | return NanoHTTPD.newFixedLengthResponse(Status.BAD_REQUEST, |
| 176 | NanoHTTPD.MIME_PLAINTEXT, null); |
| 177 | } |
| 178 | |
| 179 | // /story/luid/chapter/para <-- text/image |
| 180 | // /story/luid/cover <-- image |
| 181 | // /story/luid/metadata <-- json |
| 182 | // /story/luid/json <-- json, whole chapter (no images) |
| 183 | @Override |
| 184 | protected Response getStoryPart(String uri, WLoginResult login) { |
| 185 | String[] cover = uri.split("/"); |
| 186 | int off = 2; |
| 187 | |
| 188 | if (cover.length < off + 2) { |
| 189 | return NanoHTTPD.newFixedLengthResponse(Status.BAD_REQUEST, |
| 190 | NanoHTTPD.MIME_PLAINTEXT, null); |
| 191 | } |
| 192 | |
| 193 | String luid = cover[off + 0]; |
| 194 | String chapterStr = cover[off + 1]; |
| 195 | String imageStr = cover.length < off + 3 ? null : cover[off + 2]; |
| 196 | |
| 197 | // 1-based (0 = desc) |
| 198 | int chapter = 0; |
| 199 | if (chapterStr != null && !"cover".equals(chapterStr) |
| 200 | && !"metadata".equals(chapterStr) |
| 201 | && !"json".equals(chapterStr)) { |
| 202 | try { |
| 203 | chapter = Integer.parseInt(chapterStr); |
| 204 | if (chapter < 0) { |
| 205 | throw new NumberFormatException(); |
| 206 | } |
| 207 | } catch (NumberFormatException e) { |
| 208 | return NanoHTTPD.newFixedLengthResponse(Status.BAD_REQUEST, |
| 209 | NanoHTTPD.MIME_PLAINTEXT, "Chapter is not valid"); |
| 210 | } |
| 211 | } |
| 212 | |
| 213 | // 1-based |
| 214 | int paragraph = 1; |
| 215 | if (imageStr != null) { |
| 216 | try { |
| 217 | paragraph = Integer.parseInt(imageStr); |
| 218 | if (paragraph < 0) { |
| 219 | throw new NumberFormatException(); |
| 220 | } |
| 221 | } catch (NumberFormatException e) { |
| 222 | return NanoHTTPD.newFixedLengthResponse(Status.BAD_REQUEST, |
| 223 | NanoHTTPD.MIME_PLAINTEXT, "Paragraph is not valid"); |
| 224 | } |
| 225 | } |
| 226 | |
| 227 | String mimeType = NanoHTTPD.MIME_PLAINTEXT; |
| 228 | InputStream in = null; |
| 229 | try { |
| 230 | if ("cover".equals(chapterStr)) { |
| 231 | Image img = cover(luid, login); |
| 232 | if (img != null) { |
| 233 | in = img.newInputStream(); |
| 234 | } |
| 235 | // TODO: get correct image type |
| 236 | mimeType = "image/png"; |
| 237 | } else if ("metadata".equals(chapterStr)) { |
| 238 | MetaData meta = meta(luid, login); |
| 239 | JSONObject json = JsonIO.toJson(meta); |
| 240 | mimeType = "application/json"; |
| 241 | in = new ByteArrayInputStream(json.toString().getBytes()); |
| 242 | } else if ("json".equals(chapterStr)) { |
| 243 | Story story = story(luid, login); |
| 244 | JSONObject json = JsonIO.toJson(story); |
| 245 | mimeType = "application/json"; |
| 246 | in = new ByteArrayInputStream(json.toString().getBytes()); |
| 247 | } else { |
| 248 | Story story = story(luid, login); |
| 249 | if (story != null) { |
| 250 | if (chapter == 0) { |
| 251 | StringBuilder builder = new StringBuilder(); |
| 252 | for (Paragraph p : story.getMeta().getResume()) { |
| 253 | if (builder.length() == 0) { |
| 254 | builder.append("\n"); |
| 255 | } |
| 256 | builder.append(p.getContent()); |
| 257 | } |
| 258 | |
| 259 | in = new ByteArrayInputStream( |
| 260 | builder.toString().getBytes("utf-8")); |
| 261 | } else { |
| 262 | Paragraph para = story.getChapters().get(chapter - 1) |
| 263 | .getParagraphs().get(paragraph - 1); |
| 264 | Image img = para.getContentImage(); |
| 265 | if (para.getType() == ParagraphType.IMAGE) { |
| 266 | // TODO: get correct image type |
| 267 | mimeType = "image/png"; |
| 268 | in = img.newInputStream(); |
| 269 | } else { |
| 270 | in = new ByteArrayInputStream( |
| 271 | para.getContent().getBytes("utf-8")); |
| 272 | } |
| 273 | } |
| 274 | } |
| 275 | } |
| 276 | } catch (IndexOutOfBoundsException e) { |
| 277 | return NanoHTTPD.newFixedLengthResponse(Status.NOT_FOUND, |
| 278 | NanoHTTPD.MIME_PLAINTEXT, |
| 279 | "Chapter or paragraph does not exist"); |
| 280 | } catch (IOException e) { |
| 281 | Instance.getInstance().getTraceHandler() |
| 282 | .error(new IOException("Cannot get image: " + uri, e)); |
| 283 | return NanoHTTPD.newFixedLengthResponse(Status.INTERNAL_ERROR, |
| 284 | NanoHTTPD.MIME_PLAINTEXT, "Error when processing request"); |
| 285 | } |
| 286 | |
| 287 | return newInputStreamResponse(mimeType, in); |
| 288 | } |
| 289 | |
| 290 | @Override |
| 291 | protected List<MetaData> metas(WLoginResult login) throws IOException { |
| 292 | BasicLibrary lib = Instance.getInstance().getLibrary(); |
| 293 | List<MetaData> metas = new ArrayList<MetaData>(); |
| 294 | for (MetaData meta : lib.getList().getMetas()) { |
| 295 | if (isAllowed(meta, login)) { |
| 296 | metas.add(meta); |
| 297 | } |
| 298 | } |
| 299 | |
| 300 | return metas; |
| 301 | } |
| 302 | |
| 303 | // NULL if not whitelist OK or if not found |
| 304 | @Override |
| 305 | protected Story story(String luid, WLoginResult login) throws IOException { |
| 306 | synchronized (storyCache) { |
| 307 | if (storyCache.containsKey(luid)) { |
| 308 | Story story = storyCache.get(luid); |
| 309 | if (!isAllowed(story.getMeta(), login)) |
| 310 | return null; |
| 311 | |
| 312 | return story; |
| 313 | } |
| 314 | } |
| 315 | |
| 316 | Story story = null; |
| 317 | MetaData meta = meta(luid, login); |
| 318 | if (meta != null) { |
| 319 | BasicLibrary lib = Instance.getInstance().getLibrary(); |
| 320 | story = lib.getStory(luid, null); |
| 321 | long size = sizeOf(story); |
| 322 | |
| 323 | synchronized (storyCache) { |
| 324 | // Could have been added by another request |
| 325 | if (!storyCache.containsKey(luid)) { |
| 326 | while (!storyCacheOrder.isEmpty() |
| 327 | && storyCacheSize + size > maxStoryCacheSize) { |
| 328 | String oldestLuid = storyCacheOrder.removeFirst(); |
| 329 | Story oldestStory = storyCache.remove(oldestLuid); |
| 330 | maxStoryCacheSize -= sizeOf(oldestStory); |
| 331 | } |
| 332 | |
| 333 | storyCacheOrder.add(luid); |
| 334 | storyCache.put(luid, story); |
| 335 | } |
| 336 | } |
| 337 | } |
| 338 | |
| 339 | return story; |
| 340 | } |
| 341 | |
| 342 | private MetaData meta(String luid, WLoginResult login) throws IOException { |
| 343 | BasicLibrary lib = Instance.getInstance().getLibrary(); |
| 344 | MetaData meta = lib.getInfo(luid); |
| 345 | if (!isAllowed(meta, login)) |
| 346 | return null; |
| 347 | |
| 348 | return meta; |
| 349 | } |
| 350 | |
| 351 | private Image cover(String luid, WLoginResult login) throws IOException { |
| 352 | MetaData meta = meta(luid, login); |
| 353 | if (meta != null) { |
| 354 | BasicLibrary lib = Instance.getInstance().getLibrary(); |
| 355 | return lib.getCover(meta.getLuid()); |
| 356 | } |
| 357 | |
| 358 | return null; |
| 359 | } |
| 360 | |
| 361 | private boolean isAllowed(MetaData meta, WLoginResult login) { |
| 362 | if (login.isWl() && !whitelist.isEmpty() |
| 363 | && !whitelist.contains(meta.getSource())) { |
| 364 | return false; |
| 365 | } |
| 366 | if (login.isBl() && blacklist.contains(meta.getSource())) { |
| 367 | return false; |
| 368 | } |
| 369 | |
| 370 | return true; |
| 371 | } |
| 372 | |
| 373 | private long sizeOf(Story story) { |
| 374 | long size = 0; |
| 375 | for (Chapter chap : story) { |
| 376 | for (Paragraph para : chap) { |
| 377 | if (para.getType() == ParagraphType.IMAGE) { |
| 378 | size += para.getContentImage().getSize(); |
| 379 | } else { |
| 380 | size += para.getContent().length(); |
| 381 | } |
| 382 | } |
| 383 | } |
| 384 | |
| 385 | return size; |
| 386 | } |
| 387 | |
| 388 | public static void main(String[] args) throws IOException { |
| 389 | Instance.init(); |
| 390 | WebLibraryServer web = new WebLibraryServer(false); |
| 391 | web.run(); |
| 392 | } |
| 393 | } |