episode.ts 9.7 KB

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  1. 'use strict';
  2. import cheerio = require('cheerio');
  3. import fs = require('fs');
  4. import mkdirp = require('mkdirp');
  5. import my_request = require('./my_request');
  6. import path = require('path');
  7. import subtitle from './subtitle/index';
  8. import video from './video/index';
  9. import xml2js = require('xml2js');
  10. import log = require('./log');
  11. /**
  12. * Streams the episode to disk.
  13. */
  14. export default function(config: IConfig, address: string, done: (err: Error, ign: boolean) => void)
  15. {
  16. scrapePage(config, address, (err, page) =>
  17. {
  18. if (err)
  19. {
  20. return done(err, false);
  21. }
  22. scrapePlayer(config, address, page.id, (errS, player) =>
  23. {
  24. if (errS)
  25. {
  26. return done(errS, false);
  27. }
  28. download(config, page, player, done);
  29. });
  30. });
  31. }
  32. /**
  33. * Completes a download and writes the message with an elapsed time.
  34. */
  35. function complete(epName: string, message: string, begin: number, done: (err: Error, ign: boolean) => void)
  36. {
  37. const timeInMs = Date.now() - begin;
  38. const seconds = prefix(Math.floor(timeInMs / 1000) % 60, 2);
  39. const minutes = prefix(Math.floor(timeInMs / 1000 / 60) % 60, 2);
  40. const hours = prefix(Math.floor(timeInMs / 1000 / 60 / 60), 2);
  41. log.dispEpisode(epName, message + ' (' + hours + ':' + minutes + ':' + seconds + ')', true);
  42. done(null, false);
  43. }
  44. /**
  45. * Check if a file exist..
  46. */
  47. function fileExist(path: string)
  48. {
  49. try
  50. {
  51. fs.statSync(path);
  52. return true;
  53. }
  54. catch (e)
  55. {
  56. return false;
  57. }
  58. }
  59. function sanitiseFileName(str: string)
  60. {
  61. return str.replace(/[\/':\?\*"<>\.]/g, '_');
  62. }
  63. /**
  64. * Downloads the subtitle and video.
  65. */
  66. function download(config: IConfig, page: IEpisodePage, player: IEpisodePlayer, done: (err: Error, ign: boolean) => void)
  67. {
  68. let series = config.series || page.series;
  69. series = sanitiseFileName(series);
  70. let fileName = sanitiseFileName(name(config, page, series, ''));
  71. let filePath = path.join(config.output || process.cwd(), series, fileName);
  72. if (fileExist(filePath + '.mkv'))
  73. {
  74. let count = 0;
  75. if (config.rebuildcrp)
  76. {
  77. log.warn('Adding \'' + fileName + '\' to the DB...');
  78. return done(null, false);
  79. }
  80. log.warn('File \'' + fileName + '\' already exist...');
  81. do
  82. {
  83. count = count + 1;
  84. fileName = sanitiseFileName(name(config, page, series, '-' + count));
  85. filePath = path.join(config.output || process.cwd(), series, fileName);
  86. } while (fileExist(filePath + '.mkv'));
  87. log.warn('Renaming to \'' + fileName + '\'...');
  88. page.filename = fileName;
  89. }
  90. if (config.rebuildcrp)
  91. {
  92. log.warn('Ignoring \'' + fileName + '\' as it does not exist...');
  93. return done(null, true);
  94. }
  95. mkdirp(path.dirname(filePath), (errM: Error) =>
  96. {
  97. if (errM)
  98. {
  99. log.dispEpisode(fileName, 'Error...', true);
  100. return done(errM, false);
  101. }
  102. log.dispEpisode(fileName, 'Fetching...', false);
  103. downloadSubtitle(config, player, filePath, (errDS) =>
  104. {
  105. if (errDS)
  106. {
  107. log.dispEpisode(fileName, 'Error...', true);
  108. return done(errDS, false);
  109. }
  110. const now = Date.now();
  111. if (player.video.file !== undefined)
  112. {
  113. log.dispEpisode(fileName, 'Fetching video...', false);
  114. downloadVideo(config, page, player, filePath, (errDV) =>
  115. {
  116. if (errDV)
  117. {
  118. log.dispEpisode(fileName, 'Error...', true);
  119. return done(errDV, false);
  120. }
  121. if (config.merge)
  122. {
  123. return complete(fileName, 'Finished!', now, done);
  124. }
  125. const isSubtited = Boolean(player.subtitle);
  126. log.dispEpisode(fileName, 'Merging...', false);
  127. video.merge(config, isSubtited, player.video.file, filePath, player.video.mode, config.verbose, (errVM) =>
  128. {
  129. if (errVM)
  130. {
  131. log.dispEpisode(fileName, 'Error...', true);
  132. return done(errVM, false);
  133. }
  134. complete(fileName, 'Finished!', now, done);
  135. });
  136. });
  137. }
  138. else
  139. {
  140. log.dispEpisode(fileName, 'Ignoring: not released yet', true);
  141. done(null, true);
  142. }
  143. });
  144. });
  145. }
  146. /**
  147. * Saves the subtitles to disk.
  148. */
  149. function downloadSubtitle(config: IConfig, player: IEpisodePlayer, filePath: string, done: (err?: Error) => void)
  150. {
  151. const enc = player.subtitle;
  152. if (!enc)
  153. {
  154. return done();
  155. }
  156. subtitle.decode(enc.id, enc.iv, enc.data, (errSD, data) =>
  157. {
  158. if (errSD)
  159. {
  160. return done(errSD);
  161. }
  162. const formats = subtitle.formats;
  163. const format = formats[config.format] ? config.format : 'ass';
  164. formats[format](config, data, (errF: Error, decodedSubtitle: string) =>
  165. {
  166. if (errF)
  167. {
  168. return done(errF);
  169. }
  170. fs.writeFile(filePath + '.' + format, '\ufeff' + decodedSubtitle, done);
  171. });
  172. });
  173. }
  174. /**
  175. * Streams the video to disk.
  176. */
  177. function downloadVideo(config: IConfig, page: IEpisodePage, player: IEpisodePlayer,
  178. filePath: string, done: (err: Error) => void)
  179. {
  180. video.stream(player.video.host, player.video.file, page.swf, filePath,
  181. path.extname(player.video.file), player.video.mode, config.verbose, done);
  182. }
  183. /**
  184. * Names the file based on the config, page, series and tag.
  185. */
  186. function name(config: IConfig, page: IEpisodePage, series: string, extra: string)
  187. {
  188. const episodeNum = parseInt(page.episode, 10);
  189. const volumeNum = parseInt(page.volume, 10);
  190. const episode = (episodeNum < 10 ? '0' : '') + page.episode;
  191. const volume = (volumeNum < 10 ? '0' : '') + page.volume;
  192. const tag = config.tag || 'CrunchyRoll';
  193. if (!page.filename) {
  194. return page.series + ' - s' + volume + 'e' + episode + ' - [' + tag + ']' + extra;
  195. }
  196. return page.filename
  197. .replace(/{EPISODE_ID}/g, page.id.toString())
  198. .replace(/{EPISODE_NUMBER}/g, episode)
  199. .replace(/{SEASON_NUMBER}/g, volume)
  200. .replace(/{VOLUME_NUMBER}/g, volume)
  201. .replace(/{SEASON_TITLE}/g, page.season)
  202. .replace(/{VOLUME_TITLE}/g, page.season)
  203. .replace(/{SERIES_TITLE}/g, series)
  204. .replace(/{EPISODE_TITLE}/g, page.title)
  205. .replace(/{TAG}/g, tag) + extra;
  206. }
  207. /**
  208. * Prefixes a value.
  209. */
  210. function prefix(value: number|string, length: number)
  211. {
  212. let valueString = (typeof value !== 'string') ? String(value) : value;
  213. while (valueString.length < length)
  214. {
  215. valueString = '0' + valueString;
  216. }
  217. return valueString;
  218. }
  219. /**
  220. * Requests the page data and scrapes the id, episode, series and swf.
  221. */
  222. function scrapePage(config: IConfig, address: string, done: (err: Error, page?: IEpisodePage) => void)
  223. {
  224. const epId = parseInt((address.match(/[0-9]+$/) || ['0'])[0], 10);
  225. if (!epId)
  226. {
  227. return done(new Error('Invalid address.'));
  228. }
  229. my_request.get(config, address, (err, result) =>
  230. {
  231. if (err)
  232. {
  233. return done(err);
  234. }
  235. const $ = cheerio.load(result);
  236. const swf = /^([^?]+)/.exec($('link[rel=video_src]').attr('href'));
  237. const regexp = /\s*([^\n\r\t\f]+)\n?\s*[^0-9]*([0-9][\-0-9.]*)?,?\n?\s\s*[^0-9]*((PV )?[S0-9][P0-9.]*[a-fA-F]?)/;
  238. const look = $('#showmedia_about_media').text();
  239. const seasonTitle = $('span[itemprop="title"]').text();
  240. const episodeTitle = $('#showmedia_about_name').text().replace(/[“”]/g, '');
  241. const data = regexp.exec(look);
  242. if (config.debug)
  243. {
  244. log.dumpToDebug('episode page', $.html());
  245. }
  246. if (!swf || !data)
  247. {
  248. log.warn('Somethig unexpected in the page at ' + address + ' (data are: ' + look + ')');
  249. log.warn('Setting Season to ’0’ and episode to ’0’...');
  250. if (config.debug)
  251. {
  252. log.dumpToDebug('episode unexpected', look);
  253. }
  254. done(null, {
  255. episode: '0',
  256. id: epId,
  257. series: seasonTitle,
  258. season: seasonTitle,
  259. title: episodeTitle,
  260. swf: swf[1],
  261. volume: '0',
  262. filename: '',
  263. });
  264. }
  265. else
  266. {
  267. done(null, {
  268. episode: data[3],
  269. id: epId,
  270. series: data[1],
  271. season: seasonTitle,
  272. title: episodeTitle,
  273. swf: swf[1],
  274. volume: data[2] || '1',
  275. filename: '',
  276. });
  277. }
  278. });
  279. }
  280. /**
  281. * Requests the player data and scrapes the subtitle and video data.
  282. */
  283. function scrapePlayer(config: IConfig, address: string, id: number, done: (err: Error, player?: IEpisodePlayer) => void)
  284. {
  285. const url = address.match(/^(https?:\/\/[^\/]+)/);
  286. if (!url)
  287. {
  288. return done(new Error('Invalid address.'));
  289. }
  290. my_request.post(config, {
  291. form: {
  292. current_page: address,
  293. video_format: config.video_format,
  294. video_quality: config.video_quality,
  295. media_id: id
  296. },
  297. url: url[1] + '/xml/?req=RpcApiVideoPlayer_GetStandardConfig&media_id=' + id,
  298. }, (err, result) =>
  299. {
  300. if (err)
  301. {
  302. return done(err);
  303. }
  304. xml2js.parseString(result, {
  305. explicitArray: false,
  306. explicitRoot: false,
  307. }, (errPS: Error, player: IEpisodePlayerConfig) =>
  308. {
  309. if (errPS)
  310. {
  311. return done(errPS);
  312. }
  313. try
  314. {
  315. const isSubtitled = Boolean(player['default:preload'].subtitle);
  316. let streamMode = 'RTMP';
  317. if (player['default:preload'].stream_info.host === '')
  318. {
  319. streamMode = 'HLS';
  320. }
  321. done(null, {
  322. subtitle: isSubtitled ? {
  323. data: player['default:preload'].subtitle.data,
  324. id: parseInt(player['default:preload'].subtitle.$.id, 10),
  325. iv: player['default:preload'].subtitle.iv,
  326. } : null,
  327. video: {
  328. file: player['default:preload'].stream_info.file,
  329. host: player['default:preload'].stream_info.host,
  330. mode: streamMode,
  331. },
  332. });
  333. } catch (parseError)
  334. {
  335. if (config.debug)
  336. {
  337. log.dumpToDebug('player scrape', parseError);
  338. }
  339. done(parseError);
  340. }
  341. });
  342. });
  343. }