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. const serieFolder = sanitiseFileName(config.series || page.series);
  69. let fileName = sanitiseFileName(generateName(config, page));
  70. let filePath = path.join(config.output || process.cwd(), serieFolder, fileName);
  71. if (fileExist(filePath + '.mkv'))
  72. {
  73. let count = 0;
  74. if (config.rebuildcrp)
  75. {
  76. log.warn('Adding \'' + fileName + '\' to the DB...');
  77. return done(null, false);
  78. }
  79. log.warn('File \'' + fileName + '\' already exist...');
  80. do
  81. {
  82. count = count + 1;
  83. fileName = sanitiseFileName(generateName(config, page, '-' + count));
  84. filePath = path.join(config.output || process.cwd(), serieFolder, fileName);
  85. } while (fileExist(filePath + '.mkv'));
  86. log.warn('Renaming to \'' + fileName + '\'...');
  87. page.filename = fileName;
  88. }
  89. if (config.rebuildcrp)
  90. {
  91. log.warn('Ignoring \'' + fileName + '\' as it does not exist...');
  92. return done(null, true);
  93. }
  94. mkdirp(path.dirname(filePath), (errM: Error) =>
  95. {
  96. if (errM)
  97. {
  98. log.dispEpisode(fileName, 'Error...', true);
  99. return done(errM, false);
  100. }
  101. log.dispEpisode(fileName, 'Fetching...', false);
  102. downloadSubtitle(config, player, filePath, (errDS) =>
  103. {
  104. if (errDS)
  105. {
  106. log.dispEpisode(fileName, 'Error...', true);
  107. return done(errDS, false);
  108. }
  109. const now = Date.now();
  110. if (player.video.file !== undefined)
  111. {
  112. log.dispEpisode(fileName, 'Fetching video...', false);
  113. downloadVideo(config, page, player, filePath, (errDV) =>
  114. {
  115. if (errDV)
  116. {
  117. log.dispEpisode(fileName, 'Error...', true);
  118. return done(errDV, false);
  119. }
  120. if (config.merge)
  121. {
  122. return complete(fileName, 'Finished!', now, done);
  123. }
  124. const isSubtited = Boolean(player.subtitle);
  125. log.dispEpisode(fileName, 'Merging...', false);
  126. video.merge(config, isSubtited, player.video.file, filePath, player.video.mode, config.verbose, (errVM) =>
  127. {
  128. if (errVM)
  129. {
  130. log.dispEpisode(fileName, 'Error...', true);
  131. return done(errVM, false);
  132. }
  133. complete(fileName, 'Finished!', now, done);
  134. });
  135. });
  136. }
  137. else
  138. {
  139. log.dispEpisode(fileName, 'Ignoring: not released yet', true);
  140. done(null, true);
  141. }
  142. });
  143. });
  144. }
  145. /**
  146. * Saves the subtitles to disk.
  147. */
  148. function downloadSubtitle(config: IConfig, player: IEpisodePlayer, filePath: string, done: (err?: Error) => void)
  149. {
  150. const enc = player.subtitle;
  151. if (!enc)
  152. {
  153. return done();
  154. }
  155. subtitle.decode(enc.id, enc.iv, enc.data, (errSD, data) =>
  156. {
  157. if (errSD)
  158. {
  159. return done(errSD);
  160. }
  161. if (config.debug)
  162. {
  163. log.dumpToDebug('SubtitlesXML', data);
  164. }
  165. const formats = subtitle.formats;
  166. const format = formats[config.format] ? config.format : 'ass';
  167. formats[format](config, data, (errF: Error, decodedSubtitle: string) =>
  168. {
  169. if (errF)
  170. {
  171. return done(errF);
  172. }
  173. fs.writeFile(filePath + '.' + format, '\ufeff' + decodedSubtitle, done);
  174. });
  175. });
  176. }
  177. /**
  178. * Streams the video to disk.
  179. */
  180. function downloadVideo(config: IConfig, page: IEpisodePage, player: IEpisodePlayer,
  181. filePath: string, done: (err: Error) => void)
  182. {
  183. video.stream(player.video.host, player.video.file, page.swf, filePath,
  184. path.extname(player.video.file), player.video.mode, config.verbose, done);
  185. }
  186. /**
  187. * Names the file based on the config, page, series and tag.
  188. */
  189. function generateName(config: IConfig, page: IEpisodePage, extra = '')
  190. {
  191. const episodeNum = parseInt(page.episode, 10);
  192. const volumeNum = parseInt(page.volume, 10);
  193. const episode = (episodeNum < 10 ? '0' : '') + page.episode;
  194. const volume = (volumeNum < 10 ? '0' : '') + page.volume;
  195. const tag = config.tag || 'CrunchyRoll';
  196. const series = config.series || page.series;
  197. return config.nametmpl
  198. .replace(/{EPISODE_ID}/g, page.id.toString())
  199. .replace(/{EPISODE_NUMBER}/g, episode)
  200. .replace(/{SEASON_NUMBER}/g, volume)
  201. .replace(/{VOLUME_NUMBER}/g, volume)
  202. .replace(/{SEASON_TITLE}/g, page.season)
  203. .replace(/{VOLUME_TITLE}/g, page.season)
  204. .replace(/{SERIES_TITLE}/g, series)
  205. .replace(/{EPISODE_TITLE}/g, page.title)
  206. .replace(/{TAG}/g, tag) + extra;
  207. }
  208. /**
  209. * Prefixes a value.
  210. */
  211. function prefix(value: number|string, length: number)
  212. {
  213. let valueString = (typeof value !== 'string') ? String(value) : value;
  214. while (valueString.length < length)
  215. {
  216. valueString = '0' + valueString;
  217. }
  218. return valueString;
  219. }
  220. /**
  221. * Requests the page data and scrapes the id, episode, series and swf.
  222. */
  223. function scrapePage(config: IConfig, address: string, done: (err: Error, page?: IEpisodePage) => void)
  224. {
  225. const epId = parseInt((address.match(/[0-9]+$/) || ['0'])[0], 10);
  226. if (!epId)
  227. {
  228. return done(new Error('Invalid address.'));
  229. }
  230. my_request.get(config, address, (err, result) =>
  231. {
  232. if (err)
  233. {
  234. return done(err);
  235. }
  236. const $ = cheerio.load(result);
  237. const swf = /^([^?]+)/.exec($('link[rel=video_src]').attr('href'));
  238. 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]?)/;
  239. const look = $('#showmedia_about_media').text();
  240. const seasonTitle = $('span[itemprop="title"]').text();
  241. const episodeTitle = $('#showmedia_about_name').text().replace(/[“”]/g, '');
  242. const data = regexp.exec(look);
  243. if (config.debug)
  244. {
  245. log.dumpToDebug('episode page', $.html());
  246. }
  247. if (!swf || !data)
  248. {
  249. log.warn('Somethig unexpected in the page at ' + address + ' (data are: ' + look + ')');
  250. log.warn('Setting Season to ’0’ and episode to ’0’...');
  251. if (config.debug)
  252. {
  253. log.dumpToDebug('episode unexpected', look);
  254. }
  255. done(null, {
  256. episode: '0',
  257. id: epId,
  258. series: seasonTitle,
  259. season: seasonTitle,
  260. title: episodeTitle,
  261. swf: swf[1],
  262. volume: '0',
  263. filename: '',
  264. });
  265. }
  266. else
  267. {
  268. done(null, {
  269. episode: data[3],
  270. id: epId,
  271. series: data[1],
  272. season: seasonTitle,
  273. title: episodeTitle,
  274. swf: swf[1],
  275. volume: data[2] || '1',
  276. filename: '',
  277. });
  278. }
  279. });
  280. }
  281. /**
  282. * Requests the player data and scrapes the subtitle and video data.
  283. */
  284. function scrapePlayer(config: IConfig, address: string, id: number, done: (err: Error, player?: IEpisodePlayer) => void)
  285. {
  286. const url = address.match(/^(https?:\/\/[^\/]+)/);
  287. if (!url)
  288. {
  289. return done(new Error('Invalid address.'));
  290. }
  291. my_request.post(config, {
  292. form: {
  293. current_page: address,
  294. video_format: config.video_format,
  295. video_quality: config.video_quality,
  296. media_id: id
  297. },
  298. url: url[1] + '/xml/?req=RpcApiVideoPlayer_GetStandardConfig&media_id=' + id,
  299. }, (err, result) =>
  300. {
  301. if (err)
  302. {
  303. return done(err);
  304. }
  305. xml2js.parseString(result, {
  306. explicitArray: false,
  307. explicitRoot: false,
  308. }, (errPS: Error, player: IEpisodePlayerConfig) =>
  309. {
  310. if (errPS)
  311. {
  312. return done(errPS);
  313. }
  314. try
  315. {
  316. const isSubtitled = Boolean(player['default:preload'].subtitle);
  317. let streamMode = 'RTMP';
  318. if (player['default:preload'].stream_info.host === '')
  319. {
  320. streamMode = 'HLS';
  321. }
  322. done(null, {
  323. subtitle: isSubtitled ? {
  324. data: player['default:preload'].subtitle.data,
  325. id: parseInt(player['default:preload'].subtitle.$.id, 10),
  326. iv: player['default:preload'].subtitle.iv,
  327. } : null,
  328. video: {
  329. file: player['default:preload'].stream_info.file,
  330. host: player['default:preload'].stream_info.host,
  331. mode: streamMode,
  332. },
  333. });
  334. } catch (parseError)
  335. {
  336. if (config.debug)
  337. {
  338. log.dumpToDebug('player scrape', parseError);
  339. }
  340. done(parseError);
  341. }
  342. });
  343. });
  344. }