episode.ts 9.1 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. }
  89. if (config.rebuildcrp)
  90. {
  91. return done(null, true);
  92. }
  93. mkdirp(path.dirname(filePath), (errM: Error) =>
  94. {
  95. if (errM)
  96. {
  97. return done(errM, false);
  98. }
  99. log.dispEpisode(fileName, 'Fetching...', false);
  100. downloadSubtitle(config, player, filePath, (errDS) =>
  101. {
  102. if (errDS)
  103. {
  104. return done(errDS, false);
  105. }
  106. const now = Date.now();
  107. if (player.video.file !== undefined)
  108. {
  109. log.dispEpisode(fileName, 'Fetching video...', false);
  110. downloadVideo(config, page, player, filePath, (errDV) =>
  111. {
  112. if (errDV)
  113. {
  114. return done(errDV, false);
  115. }
  116. if (config.merge)
  117. {
  118. return complete(fileName, 'Finished!', now, done);
  119. }
  120. const isSubtited = Boolean(player.subtitle);
  121. log.dispEpisode(fileName, 'Merging...', false);
  122. video.merge(config, isSubtited, player.video.file, filePath, player.video.mode, (errVM) =>
  123. {
  124. if (errVM)
  125. {
  126. return done(errVM, false);
  127. }
  128. complete(fileName, 'Finished!', now, done);
  129. });
  130. });
  131. }
  132. else
  133. {
  134. log.dispEpisode(fileName, 'Ignoring: not released yet', true);
  135. done(null, true);
  136. }
  137. });
  138. });
  139. }
  140. /**
  141. * Saves the subtitles to disk.
  142. */
  143. function downloadSubtitle(config: IConfig, player: IEpisodePlayer, filePath: string, done: (err?: Error) => void)
  144. {
  145. const enc = player.subtitle;
  146. if (!enc)
  147. {
  148. return done();
  149. }
  150. subtitle.decode(enc.id, enc.iv, enc.data, (errSD, data) =>
  151. {
  152. if (errSD)
  153. {
  154. return done(errSD);
  155. }
  156. const formats = subtitle.formats;
  157. const format = formats[config.format] ? config.format : 'ass';
  158. formats[format](data, (errF: Error, decodedSubtitle: string) =>
  159. {
  160. if (errF)
  161. {
  162. return done(errF);
  163. }
  164. fs.writeFile(filePath + '.' + format, '\ufeff' + decodedSubtitle, done);
  165. });
  166. });
  167. }
  168. /**
  169. * Streams the video to disk.
  170. */
  171. function downloadVideo(ignored/*config*/: IConfig, page: IEpisodePage, player: IEpisodePlayer,
  172. filePath: string, done: (err: Error) => void)
  173. {
  174. video.stream(player.video.host, player.video.file, page.swf, filePath,
  175. path.extname(player.video.file), player.video.mode, done);
  176. }
  177. /**
  178. * Names the file based on the config, page, series and tag.
  179. */
  180. function name(config: IConfig, page: IEpisodePage, series: string, extra: string)
  181. {
  182. const episodeNum = parseInt(page.episode, 10);
  183. const volumeNum = parseInt(page.volume, 10);
  184. const episode = (episodeNum < 10 ? '0' : '') + page.episode;
  185. const volume = (volumeNum < 10 ? '0' : '') + page.volume;
  186. const tag = config.tag || 'CrunchyRoll';
  187. if (!config.filename) {
  188. return page.series + ' - s' + volume + 'e' + episode + ' - [' + tag + ']' + extra;
  189. }
  190. return config.filename
  191. .replace(/{EPISODE_ID}/g, page.id.toString())
  192. .replace(/{EPISODE_NUMBER}/g, episode)
  193. .replace(/{SEASON_NUMBER}/g, volume)
  194. .replace(/{VOLUME_NUMBER}/g, volume)
  195. .replace(/{SEASON_TITLE}/g, page.season)
  196. .replace(/{VOLUME_TITLE}/g, page.season)
  197. .replace(/{SERIES_TITLE}/g, series)
  198. .replace(/{EPISODE_TITLE}/g, page.title)
  199. .replace(/{TAG}/g, tag) + extra;
  200. }
  201. /**
  202. * Prefixes a value.
  203. */
  204. function prefix(value: number|string, length: number)
  205. {
  206. let valueString = (typeof value !== 'string') ? String(value) : value;
  207. while (valueString.length < length)
  208. {
  209. valueString = '0' + valueString;
  210. }
  211. return valueString;
  212. }
  213. /**
  214. * Requests the page data and scrapes the id, episode, series and swf.
  215. */
  216. function scrapePage(config: IConfig, address: string, done: (err: Error, page?: IEpisodePage) => void)
  217. {
  218. const epId = parseInt((address.match(/[0-9]+$/) || ['0'])[0], 10);
  219. if (!epId)
  220. {
  221. return done(new Error('Invalid address.'));
  222. }
  223. my_request.get(config, address, (err, result) =>
  224. {
  225. if (err)
  226. {
  227. return done(err);
  228. }
  229. const $ = cheerio.load(result);
  230. const swf = /^([^?]+)/.exec($('link[rel=video_src]').attr('href'));
  231. 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]?)/;
  232. const look = $('#showmedia_about_media').text();
  233. const seasonTitle = $('span[itemprop="title"]').text();
  234. const episodeTitle = $('#showmedia_about_name').text().replace(/[“”]/g, '');
  235. const data = regexp.exec(look);
  236. if (!swf || !data)
  237. {
  238. log.warn('Somethig unexpected in the page at ' + address + ' (data are: ' + look + ')');
  239. log.warn('Setting Season to ’0’ and episode to ’0’...');
  240. done(null, {
  241. episode: '0',
  242. id: epId,
  243. series: seasonTitle,
  244. season: seasonTitle,
  245. title: episodeTitle,
  246. swf: swf[1],
  247. volume: '0',
  248. });
  249. }
  250. else
  251. {
  252. done(null, {
  253. episode: data[3],
  254. id: epId,
  255. series: data[1],
  256. season: seasonTitle,
  257. title: episodeTitle,
  258. swf: swf[1],
  259. volume: data[2] || '1',
  260. });
  261. }
  262. });
  263. }
  264. /**
  265. * Requests the player data and scrapes the subtitle and video data.
  266. */
  267. function scrapePlayer(config: IConfig, address: string, id: number, done: (err: Error, player?: IEpisodePlayer) => void)
  268. {
  269. const url = address.match(/^(https?:\/\/[^\/]+)/);
  270. if (!url)
  271. {
  272. return done(new Error('Invalid address.'));
  273. }
  274. my_request.post(config, {
  275. form: {
  276. current_page: address,
  277. video_format: config.video_format,
  278. video_quality: config.video_quality,
  279. media_id: id
  280. },
  281. url: url[1] + '/xml/?req=RpcApiVideoPlayer_GetStandardConfig&media_id=' + id,
  282. }, (err, result) =>
  283. {
  284. if (err)
  285. {
  286. return done(err);
  287. }
  288. xml2js.parseString(result, {
  289. explicitArray: false,
  290. explicitRoot: false,
  291. }, (errPS: Error, player: IEpisodePlayerConfig) =>
  292. {
  293. if (errPS)
  294. {
  295. return done(errPS);
  296. }
  297. try
  298. {
  299. const isSubtitled = Boolean(player['default:preload'].subtitle);
  300. let streamMode = 'RTMP';
  301. if (player['default:preload'].stream_info.host === '')
  302. {
  303. streamMode = 'HLS';
  304. }
  305. done(null, {
  306. subtitle: isSubtitled ? {
  307. data: player['default:preload'].subtitle.data,
  308. id: parseInt(player['default:preload'].subtitle.$.id, 10),
  309. iv: player['default:preload'].subtitle.iv,
  310. } : null,
  311. video: {
  312. file: player['default:preload'].stream_info.file,
  313. host: player['default:preload'].stream_info.host,
  314. mode: streamMode,
  315. },
  316. });
  317. } catch (parseError)
  318. {
  319. done(parseError);
  320. }
  321. });
  322. });
  323. }