episode.ts 9.2 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. config.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. return done(errM, false);
  100. }
  101. log.dispEpisode(fileName, 'Fetching...', false);
  102. downloadSubtitle(config, player, filePath, (errDS) =>
  103. {
  104. if (errDS)
  105. {
  106. return done(errDS, false);
  107. }
  108. const now = Date.now();
  109. if (player.video.file !== undefined)
  110. {
  111. log.dispEpisode(fileName, 'Fetching video...', false);
  112. downloadVideo(config, page, player, filePath, (errDV) =>
  113. {
  114. if (errDV)
  115. {
  116. return done(errDV, false);
  117. }
  118. if (config.merge)
  119. {
  120. return complete(fileName, 'Finished!', now, done);
  121. }
  122. const isSubtited = Boolean(player.subtitle);
  123. log.dispEpisode(fileName, 'Merging...', false);
  124. video.merge(config, isSubtited, player.video.file, filePath, player.video.mode, config.verbose, (errVM) =>
  125. {
  126. if (errVM)
  127. {
  128. return done(errVM, false);
  129. }
  130. complete(fileName, 'Finished!', now, done);
  131. });
  132. });
  133. }
  134. else
  135. {
  136. log.dispEpisode(fileName, 'Ignoring: not released yet', true);
  137. done(null, true);
  138. }
  139. });
  140. });
  141. }
  142. /**
  143. * Saves the subtitles to disk.
  144. */
  145. function downloadSubtitle(config: IConfig, player: IEpisodePlayer, filePath: string, done: (err?: Error) => void)
  146. {
  147. const enc = player.subtitle;
  148. if (!enc)
  149. {
  150. return done();
  151. }
  152. subtitle.decode(enc.id, enc.iv, enc.data, (errSD, data) =>
  153. {
  154. if (errSD)
  155. {
  156. return done(errSD);
  157. }
  158. const formats = subtitle.formats;
  159. const format = formats[config.format] ? config.format : 'ass';
  160. formats[format](config, data, (errF: Error, decodedSubtitle: string) =>
  161. {
  162. if (errF)
  163. {
  164. return done(errF);
  165. }
  166. fs.writeFile(filePath + '.' + format, '\ufeff' + decodedSubtitle, done);
  167. });
  168. });
  169. }
  170. /**
  171. * Streams the video to disk.
  172. */
  173. function downloadVideo(config: IConfig, page: IEpisodePage, player: IEpisodePlayer,
  174. filePath: string, done: (err: Error) => void)
  175. {
  176. video.stream(player.video.host, player.video.file, page.swf, filePath,
  177. path.extname(player.video.file), player.video.mode, config.verbose, done);
  178. }
  179. /**
  180. * Names the file based on the config, page, series and tag.
  181. */
  182. function name(config: IConfig, page: IEpisodePage, series: string, extra: string)
  183. {
  184. const episodeNum = parseInt(page.episode, 10);
  185. const volumeNum = parseInt(page.volume, 10);
  186. const episode = (episodeNum < 10 ? '0' : '') + page.episode;
  187. const volume = (volumeNum < 10 ? '0' : '') + page.volume;
  188. const tag = config.tag || 'CrunchyRoll';
  189. if (!config.filename) {
  190. return page.series + ' - s' + volume + 'e' + episode + ' - [' + tag + ']' + extra;
  191. }
  192. return config.filename
  193. .replace(/{EPISODE_ID}/g, page.id.toString())
  194. .replace(/{EPISODE_NUMBER}/g, episode)
  195. .replace(/{SEASON_NUMBER}/g, volume)
  196. .replace(/{VOLUME_NUMBER}/g, volume)
  197. .replace(/{SEASON_TITLE}/g, page.season)
  198. .replace(/{VOLUME_TITLE}/g, page.season)
  199. .replace(/{SERIES_TITLE}/g, series)
  200. .replace(/{EPISODE_TITLE}/g, page.title)
  201. .replace(/{TAG}/g, tag) + extra;
  202. }
  203. /**
  204. * Prefixes a value.
  205. */
  206. function prefix(value: number|string, length: number)
  207. {
  208. let valueString = (typeof value !== 'string') ? String(value) : value;
  209. while (valueString.length < length)
  210. {
  211. valueString = '0' + valueString;
  212. }
  213. return valueString;
  214. }
  215. /**
  216. * Requests the page data and scrapes the id, episode, series and swf.
  217. */
  218. function scrapePage(config: IConfig, address: string, done: (err: Error, page?: IEpisodePage) => void)
  219. {
  220. const epId = parseInt((address.match(/[0-9]+$/) || ['0'])[0], 10);
  221. if (!epId)
  222. {
  223. return done(new Error('Invalid address.'));
  224. }
  225. my_request.get(config, address, (err, result) =>
  226. {
  227. if (err)
  228. {
  229. return done(err);
  230. }
  231. const $ = cheerio.load(result);
  232. const swf = /^([^?]+)/.exec($('link[rel=video_src]').attr('href'));
  233. 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]?)/;
  234. const look = $('#showmedia_about_media').text();
  235. const seasonTitle = $('span[itemprop="title"]').text();
  236. const episodeTitle = $('#showmedia_about_name').text().replace(/[“”]/g, '');
  237. const data = regexp.exec(look);
  238. if (!swf || !data)
  239. {
  240. log.warn('Somethig unexpected in the page at ' + address + ' (data are: ' + look + ')');
  241. log.warn('Setting Season to ’0’ and episode to ’0’...');
  242. done(null, {
  243. episode: '0',
  244. id: epId,
  245. series: seasonTitle,
  246. season: seasonTitle,
  247. title: episodeTitle,
  248. swf: swf[1],
  249. volume: '0',
  250. });
  251. }
  252. else
  253. {
  254. done(null, {
  255. episode: data[3],
  256. id: epId,
  257. series: data[1],
  258. season: seasonTitle,
  259. title: episodeTitle,
  260. swf: swf[1],
  261. volume: data[2] || '1',
  262. });
  263. }
  264. });
  265. }
  266. /**
  267. * Requests the player data and scrapes the subtitle and video data.
  268. */
  269. function scrapePlayer(config: IConfig, address: string, id: number, done: (err: Error, player?: IEpisodePlayer) => void)
  270. {
  271. const url = address.match(/^(https?:\/\/[^\/]+)/);
  272. if (!url)
  273. {
  274. return done(new Error('Invalid address.'));
  275. }
  276. my_request.post(config, {
  277. form: {
  278. current_page: address,
  279. video_format: config.video_format,
  280. video_quality: config.video_quality,
  281. media_id: id
  282. },
  283. url: url[1] + '/xml/?req=RpcApiVideoPlayer_GetStandardConfig&media_id=' + id,
  284. }, (err, result) =>
  285. {
  286. if (err)
  287. {
  288. return done(err);
  289. }
  290. xml2js.parseString(result, {
  291. explicitArray: false,
  292. explicitRoot: false,
  293. }, (errPS: Error, player: IEpisodePlayerConfig) =>
  294. {
  295. if (errPS)
  296. {
  297. return done(errPS);
  298. }
  299. try
  300. {
  301. const isSubtitled = Boolean(player['default:preload'].subtitle);
  302. let streamMode = 'RTMP';
  303. if (player['default:preload'].stream_info.host === '')
  304. {
  305. streamMode = 'HLS';
  306. }
  307. done(null, {
  308. subtitle: isSubtitled ? {
  309. data: player['default:preload'].subtitle.data,
  310. id: parseInt(player['default:preload'].subtitle.$.id, 10),
  311. iv: player['default:preload'].subtitle.iv,
  312. } : null,
  313. video: {
  314. file: player['default:preload'].stream_info.file,
  315. host: player['default:preload'].stream_info.host,
  316. mode: streamMode,
  317. },
  318. });
  319. } catch (parseError)
  320. {
  321. done(parseError);
  322. }
  323. });
  324. });
  325. }