diff.js 18 KB

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  1. const htmlparser = require('htmlparser2');
  2. const {MessageEmbed} = require('discord.js');
  3. const {timeoptions} = require('../../../util/default.json');
  4. function fandom_diff(lang, msg, args, wiki, reaction, spoiler, embed) {
  5. if ( args[0] ) {
  6. var error = false;
  7. var title = '';
  8. var revision = 0;
  9. var diff = 'prev';
  10. if ( /^\d+$/.test(args[0]) ) {
  11. revision = args[0];
  12. if ( args[1] ) {
  13. if ( /^\d+$/.test(args[1]) ) {
  14. diff = args[1];
  15. }
  16. else if ( args[1] === 'prev' || args[1] === 'next' ) {
  17. diff = args[1];
  18. }
  19. else error = true;
  20. }
  21. }
  22. else if ( args[0] === 'prev' || args[0] === 'next' ) {
  23. diff = args[0];
  24. if ( args[1] ) {
  25. if ( /^\d+$/.test(args[1]) ) {
  26. revision = args[1];
  27. }
  28. else error = true;
  29. }
  30. else error = true;
  31. }
  32. else title = args.join(' ');
  33. if ( error ) msg.reactEmoji('error');
  34. else if ( /^\d+$/.test(diff) ) {
  35. var argids = [];
  36. if ( parseInt(revision, 10) > parseInt(diff, 10) ) argids = [revision, diff];
  37. else if ( parseInt(revision, 10) === parseInt(diff, 10) ) argids = [revision];
  38. else argids = [diff, revision];
  39. fandom_diff_send(lang, msg, argids, wiki, reaction, spoiler);
  40. }
  41. else {
  42. got.get( wiki + 'api.php?action=query&prop=revisions&rvprop=' + ( title ? '&titles=' + encodeURIComponent( title ) : '&revids=' + revision ) + '&rvdiffto=' + diff + '&format=json', {
  43. responseType: 'json'
  44. } ).then( response => {
  45. var body = response.body;
  46. if ( body && body.warnings ) log_warn(body.warnings);
  47. if ( response.statusCode !== 200 || !body || !body.query ) {
  48. if ( wiki.noWiki(response.url) || response.statusCode === 410 ) {
  49. console.log( '- This wiki doesn\'t exist!' );
  50. msg.reactEmoji('nowiki');
  51. }
  52. else {
  53. console.log( '- ' + response.statusCode + ': Error while getting the search results: ' + ( body && body.error && body.error.info ) );
  54. msg.sendChannelError( spoiler + '<' + wiki.toLink(title, 'diff=' + diff + ( title ? '' : '&oldid=' + revision )) + '>' + spoiler );
  55. }
  56. if ( reaction ) reaction.removeEmoji();
  57. }
  58. else {
  59. if ( body.query.badrevids ) {
  60. msg.replyMsg( lang.get('diff.badrev') );
  61. if ( reaction ) reaction.removeEmoji();
  62. } else if ( body.query.pages && !body.query.pages[-1] ) {
  63. var revisions = Object.values(body.query.pages)[0].revisions[0];
  64. if ( revisions.texthidden === undefined ) {
  65. var argids = [];
  66. var ids = revisions.diff;
  67. if ( !ids.from ) argids = [ids.to];
  68. else {
  69. argids = [ids.to, ids.from];
  70. var compare = ['', ''];
  71. if ( ids['*'] !== undefined ) {
  72. var more = '\n__' + lang.get('diff.info.more') + '__';
  73. var current_tag = '';
  74. var small_prev_ins = '';
  75. var small_prev_del = '';
  76. var ins_length = more.length;
  77. var del_length = more.length;
  78. var added = false;
  79. var parser = new htmlparser.Parser( {
  80. onopentag: (tagname, attribs) => {
  81. if ( tagname === 'ins' || tagname == 'del' ) {
  82. current_tag = tagname;
  83. }
  84. if ( tagname === 'td' && attribs.class === 'diff-addedline' ) {
  85. current_tag = tagname+'a';
  86. }
  87. if ( tagname === 'td' && attribs.class === 'diff-deletedline' ) {
  88. current_tag = tagname+"d";
  89. }
  90. if ( tagname === 'td' && attribs.class === 'diff-marker' ) {
  91. added = true;
  92. }
  93. },
  94. ontext: (htmltext) => {
  95. if ( current_tag === 'ins' && ins_length <= 1000 ) {
  96. ins_length += ( '**' + htmltext.escapeFormatting() + '**' ).length;
  97. if ( ins_length <= 1000 ) small_prev_ins += '**' + htmltext.escapeFormatting() + '**';
  98. else small_prev_ins += more;
  99. }
  100. if ( current_tag === 'del' && del_length <= 1000 ) {
  101. del_length += ( '~~' + htmltext.escapeFormatting() + '~~' ).length;
  102. if ( del_length <= 1000 ) small_prev_del += '~~' + htmltext.escapeFormatting() + '~~';
  103. else small_prev_del += more;
  104. }
  105. if ( ( current_tag === 'afterins' || current_tag === 'tda') && ins_length <= 1000 ) {
  106. ins_length += htmltext.escapeFormatting().length;
  107. if ( ins_length <= 1000 ) small_prev_ins += htmltext.escapeFormatting();
  108. else small_prev_ins += more;
  109. }
  110. if ( ( current_tag === 'afterdel' || current_tag === 'tdd') && del_length <= 1000 ) {
  111. del_length += htmltext.escapeFormatting().length;
  112. if ( del_length <= 1000 ) small_prev_del += htmltext.escapeFormatting();
  113. else small_prev_del += more;
  114. }
  115. if ( added ) {
  116. if ( htmltext === '+' && ins_length <= 1000 ) {
  117. ins_length++;
  118. if ( ins_length <= 1000 ) small_prev_ins += '\n';
  119. else small_prev_ins += more;
  120. }
  121. if ( htmltext === '−' && del_length <= 1000 ) {
  122. del_length++;
  123. if ( del_length <= 1000 ) small_prev_del += '\n';
  124. else small_prev_del += more;
  125. }
  126. added = false;
  127. }
  128. },
  129. onclosetag: (tagname) => {
  130. if ( tagname === 'ins' ) {
  131. current_tag = 'afterins';
  132. } else if ( tagname === 'del' ) {
  133. current_tag = 'afterdel';
  134. } else {
  135. current_tag = '';
  136. }
  137. }
  138. }, {decodeEntities:true} );
  139. parser.write( ids['*'] );
  140. parser.end();
  141. if ( small_prev_del.length ) {
  142. if ( small_prev_del.replace( /\~\~/g, '' ).trim().length ) {
  143. compare[0] = small_prev_del.replace( /\~\~\~\~/g, '' );
  144. } else compare[0] = '__' + lang.get('diff.info.whitespace') + '__';
  145. }
  146. if ( small_prev_ins.length ) {
  147. if ( small_prev_ins.replace( /\*\*/g, '' ).trim().length ) {
  148. compare[1] = small_prev_ins.replace( /\*\*\*\*/g, '' );
  149. } else compare[1] = '__' + lang.get('diff.info.whitespace') + '__';
  150. }
  151. }
  152. }
  153. fandom_diff_send(lang, msg, argids, wiki, reaction, spoiler, compare);
  154. } else {
  155. msg.replyMsg( lang.get('diff.badrev') );
  156. if ( reaction ) reaction.removeEmoji();
  157. }
  158. } else {
  159. if ( body.query.pages && body.query.pages[-1] ) msg.replyMsg( lang.get('diff.badrev') );
  160. else msg.reactEmoji('error');
  161. if ( reaction ) reaction.removeEmoji();
  162. }
  163. }
  164. }, error => {
  165. if ( wiki.noWiki(error.message) ) {
  166. console.log( '- This wiki doesn\'t exist!' );
  167. msg.reactEmoji('nowiki');
  168. }
  169. else {
  170. console.log( '- Error while getting the search results: ' + error );
  171. msg.sendChannelError( spoiler + '<' + wiki.toLink(title, 'diff=' + diff + ( title ? '' : '&oldid=' + revision )) + '>' + spoiler );
  172. }
  173. if ( reaction ) reaction.removeEmoji();
  174. } );
  175. }
  176. }
  177. else {
  178. if ( embed ) msg.sendChannel( spoiler + '<' + embed.url + '>' + spoiler, {embed} );
  179. else msg.reactEmoji('error');
  180. if ( reaction ) reaction.removeEmoji();
  181. }
  182. }
  183. function fandom_diff_send(lang, msg, args, wiki, reaction, spoiler, compare) {
  184. got.get( wiki + 'api.php?action=query&meta=siteinfo&siprop=general&list=tags&tglimit=500&tgprop=displayname&prop=revisions&rvprop=ids|timestamp|flags|user|size|comment|tags' + ( args.length === 1 || args[0] === args[1] ? '|content' : '' ) + '&revids=' + args.join('|') + '&format=json', {
  185. responseType: 'json'
  186. } ).then( response => {
  187. var body = response.body;
  188. if ( body && body.warnings ) log_warn(body.warnings);
  189. if ( response.statusCode !== 200 || !body || !body.query ) {
  190. if ( wiki.noWiki(response.url) || response.statusCode === 410 ) {
  191. console.log( '- This wiki doesn\'t exist!' );
  192. msg.reactEmoji('nowiki');
  193. }
  194. else {
  195. console.log( '- ' + response.statusCode + ': Error while getting the search results: ' + ( body && body.error && body.error.info ) );
  196. msg.sendChannelError( spoiler + '<' + wiki.toLink('Special:Diff/' + ( args[1] ? args[1] + '/' : '' ) + args[0]) + '>' + spoiler );
  197. }
  198. if ( reaction ) reaction.removeEmoji();
  199. }
  200. else {
  201. if ( body.query.badrevids ) {
  202. msg.replyMsg( lang.get('diff.badrev') );
  203. if ( reaction ) reaction.removeEmoji();
  204. }
  205. else if ( body.query.pages && !body.query.pages['-1'] ) {
  206. var pages = Object.values(body.query.pages);
  207. if ( pages.length !== 1 ) {
  208. msg.sendChannel( spoiler + '<' + wiki.toLink('Special:Diff/' + ( args[1] ? args[1] + '/' : '' ) + args[0], '', '', body.query.general) + '>' + spoiler );
  209. if ( reaction ) reaction.removeEmoji();
  210. }
  211. else {
  212. var title = pages[0].title;
  213. var revisions = pages[0].revisions.sort( (first, second) => Date.parse(second.timestamp) - Date.parse(first.timestamp) );
  214. var diff = revisions[0].revid;
  215. var oldid = ( revisions[1] ? revisions[1].revid : 0 );
  216. var editor = [lang.get('diff.info.editor'), ( revisions[0].userhidden !== undefined ? lang.get('diff.hidden') : revisions[0].user )];
  217. var timestamp = [lang.get('diff.info.timestamp'), new Date(revisions[0].timestamp).toLocaleString(lang.get('dateformat'), timeoptions)];
  218. var difference = revisions[0].size - ( revisions[1] ? revisions[1].size : 0 );
  219. var size = [lang.get('diff.info.size'), lang.get('diff.info.bytes').replace( '%s', ( difference > 0 ? '+' : '' ) + difference )];
  220. var comment = [lang.get('diff.info.comment'), ( revisions[0].commenthidden !== undefined ? lang.get('diff.hidden') : ( revisions[0].comment ? revisions[0].comment.toFormatting(msg.showEmbed(), wiki, body.query.general, title) : lang.get('diff.nocomment') ) )];
  221. if ( revisions[0].tags.length ) var tags = [lang.get('diff.info.tags'), body.query.tags.filter( tag => revisions[0].tags.includes( tag.name ) ).map( tag => tag.displayname ).join(', ')];
  222. var pagelink = wiki.toLink(title, 'diff=' + diff + '&oldid=' + oldid, '', body.query.general);
  223. if ( msg.showEmbed() ) {
  224. var text = '<' + pagelink + '>';
  225. var editorlink = '[' + editor[1] + '](' + wiki.toLink('User:' + editor[1], '', '', body.query.general, true) + ')';
  226. if ( revisions[0].anon !== undefined ) {
  227. editorlink = '[' + editor[1] + '](' + wiki.toLink('Special:Contributions/' + editor[1], '', '', body.query.general, true) + ')';
  228. }
  229. if ( editor[1] === lang.get('diff.hidden') ) editorlink = editor[1];
  230. var embed = new MessageEmbed().setAuthor( body.query.general.sitename ).setTitle( ( title + '?diff=' + diff + '&oldid=' + oldid ).escapeFormatting() ).setURL( pagelink ).addField( editor[0], editorlink, true ).addField( size[0], size[1], true ).addField( comment[0], comment[1] ).setFooter( timestamp[1] );
  231. if ( tags ) {
  232. var taglink = '';
  233. var tagtext = '';
  234. var tagparser = new htmlparser.Parser( {
  235. onopentag: (tagname, attribs) => {
  236. if ( tagname === 'a' ) taglink = attribs.href;
  237. },
  238. ontext: (htmltext) => {
  239. if ( taglink ) tagtext += '[' + htmltext.escapeFormatting() + '](' + taglink + ')'
  240. else tagtext += htmltext.escapeFormatting();
  241. },
  242. onclosetag: (tagname) => {
  243. if ( tagname === 'a' ) taglink = '';
  244. }
  245. }, {decodeEntities:true} );
  246. tagparser.write( tags[1] );
  247. tagparser.end();
  248. embed.addField( tags[0], tagtext );
  249. }
  250. var more = '\n__' + lang.get('diff.info.more') + '__';
  251. if ( !compare && oldid ) got.get( wiki + 'api.php?action=query&prop=revisions&rvprop=&revids=' + oldid + '&rvdiffto=' + diff + '&format=json', {
  252. responseType: 'json'
  253. } ).then( cpresponse => {
  254. var cpbody = cpresponse.body;
  255. if ( cpbody && cpbody.warnings ) log_warn(cpbody.warnings);
  256. if ( cpresponse.statusCode !== 200 || !cpbody || !cpbody.query || cpbody.query.badrevids || !cpbody.query.pages && cpbody.query.pages[-1] ) {
  257. console.log( '- ' + cpresponse.statusCode + ': Error while getting the diff: ' + ( cpbody && cpbody.error && cpbody.error.info ) );
  258. }
  259. else {
  260. var revision = Object.values(cpbody.query.pages)[0].revisions[0];
  261. if ( revision.texthidden === undefined && revision.diff && revision.diff['*'] !== undefined ) {
  262. var current_tag = '';
  263. var small_prev_ins = '';
  264. var small_prev_del = '';
  265. var ins_length = more.length;
  266. var del_length = more.length;
  267. var added = false;
  268. var parser = new htmlparser.Parser( {
  269. onopentag: (tagname, attribs) => {
  270. if ( tagname === 'ins' || tagname == 'del' ) {
  271. current_tag = tagname;
  272. }
  273. if ( tagname === 'td' && attribs.class === 'diff-addedline' ) {
  274. current_tag = tagname+'a';
  275. }
  276. if ( tagname === 'td' && attribs.class === 'diff-deletedline' ) {
  277. current_tag = tagname+"d";
  278. }
  279. if ( tagname === 'td' && attribs.class === 'diff-marker' ) {
  280. added = true;
  281. }
  282. },
  283. ontext: (htmltext) => {
  284. if ( current_tag === 'ins' && ins_length <= 1000 ) {
  285. ins_length += ( '**' + htmltext.escapeFormatting() + '**' ).length;
  286. if ( ins_length <= 1000 ) small_prev_ins += '**' + htmltext.escapeFormatting() + '**';
  287. else small_prev_ins += more;
  288. }
  289. if ( current_tag === 'del' && del_length <= 1000 ) {
  290. del_length += ( '~~' + htmltext.escapeFormatting() + '~~' ).length;
  291. if ( del_length <= 1000 ) small_prev_del += '~~' + htmltext.escapeFormatting() + '~~';
  292. else small_prev_del += more;
  293. }
  294. if ( ( current_tag === 'afterins' || current_tag === 'tda') && ins_length <= 1000 ) {
  295. ins_length += htmltext.escapeFormatting().length;
  296. if ( ins_length <= 1000 ) small_prev_ins += htmltext.escapeFormatting();
  297. else small_prev_ins += more;
  298. }
  299. if ( ( current_tag === 'afterdel' || current_tag === 'tdd') && del_length <= 1000 ) {
  300. del_length += htmltext.escapeFormatting().length;
  301. if ( del_length <= 1000 ) small_prev_del += htmltext.escapeFormatting();
  302. else small_prev_del += more;
  303. }
  304. if ( added ) {
  305. if ( htmltext === '+' && ins_length <= 1000 ) {
  306. ins_length++;
  307. if ( ins_length <= 1000 ) small_prev_ins += '\n';
  308. else small_prev_ins += more;
  309. }
  310. if ( htmltext === '−' && del_length <= 1000 ) {
  311. del_length++;
  312. if ( del_length <= 1000 ) small_prev_del += '\n';
  313. else small_prev_del += more;
  314. }
  315. added = false;
  316. }
  317. },
  318. onclosetag: (tagname) => {
  319. if ( tagname === 'ins' ) {
  320. current_tag = 'afterins';
  321. } else if ( tagname === 'del' ) {
  322. current_tag = 'afterdel';
  323. } else {
  324. current_tag = '';
  325. }
  326. }
  327. }, {decodeEntities:true} );
  328. parser.write( revision.diff['*'] );
  329. parser.end();
  330. if ( small_prev_del.length ) {
  331. if ( small_prev_del.replace( /\~\~/g, '' ).trim().length ) {
  332. embed.addField( lang.get('diff.info.removed'), small_prev_del.replace( /\~\~\~\~/g, '' ), true );
  333. } else embed.addField( lang.get('diff.info.removed'), '__' + lang.get('diff.info.whitespace') + '__', true );
  334. }
  335. if ( small_prev_ins.length ) {
  336. if ( small_prev_ins.replace( /\*\*/g, '' ).trim().length ) {
  337. embed.addField( lang.get('diff.info.added'), small_prev_ins.replace( /\*\*\*\*/g, '' ), true );
  338. } else embed.addField( lang.get('diff.info.added'), '__' + lang.get('diff.info.whitespace') + '__', true );
  339. }
  340. }
  341. else if ( revision.texthidden !== undefined ) {
  342. embed.addField( lang.get('diff.info.added'), '__' + lang.get('diff.hidden') + '__', true );
  343. }
  344. else if ( revision.diff && revision.diff['*'] === undefined ) {
  345. embed.addField( lang.get('diff.info.removed'), '__' + lang.get('diff.hidden') + '__', true );
  346. }
  347. }
  348. }, error => {
  349. console.log( '- Error while getting the diff: ' + error );
  350. } ).finally( () => {
  351. msg.sendChannel( spoiler + text + spoiler, {embed} );
  352. if ( reaction ) reaction.removeEmoji();
  353. } );
  354. else {
  355. if ( compare ) {
  356. if ( compare[0].length ) embed.addField( lang.get('diff.info.removed'), compare[0], true );
  357. if ( compare[1].length ) embed.addField( lang.get('diff.info.added'), compare[1], true );
  358. }
  359. else if ( revisions[0]['*'] ) {
  360. var content = revisions[0]['*'].escapeFormatting();
  361. if ( content.trim().length ) {
  362. if ( content.length <= 1000 ) content = '**' + content + '**';
  363. else {
  364. content = content.substring(0, 1000 - more.length);
  365. content = '**' + content.substring(0, content.lastIndexOf('\n')) + '**' + more;
  366. }
  367. embed.addField( lang.get('diff.info.added'), content, true );
  368. } else embed.addField( lang.get('diff.info.added'), '__' + lang.get('diff.info.whitespace') + '__', true );
  369. }
  370. msg.sendChannel( spoiler + text + spoiler, {embed} );
  371. if ( reaction ) reaction.removeEmoji();
  372. }
  373. }
  374. else {
  375. var embed = {};
  376. var text = '<' + pagelink + '>\n\n' + editor.join(' ') + '\n' + timestamp.join(' ') + '\n' + size.join(' ') + '\n' + comment.join(' ');
  377. if ( tags ) text += htmlToPlain( '\n' + tags.join(' ') );
  378. msg.sendChannel( spoiler + text + spoiler, {embed} );
  379. if ( reaction ) reaction.removeEmoji();
  380. }
  381. }
  382. }
  383. else {
  384. msg.reactEmoji('error');
  385. if ( reaction ) reaction.removeEmoji();
  386. }
  387. }
  388. }, error => {
  389. if ( wiki.noWiki(error.message) ) {
  390. console.log( '- This wiki doesn\'t exist!' );
  391. msg.reactEmoji('nowiki');
  392. }
  393. else {
  394. console.log( '- Error while getting the search results: ' + error );
  395. msg.sendChannelError( spoiler + '<' + wiki.toLink('Special:Diff/' + ( args[1] ? args[1] + '/' : '' ) + args[0]) + '>' + spoiler );
  396. }
  397. if ( reaction ) reaction.removeEmoji();
  398. } );
  399. }
  400. function htmlToPlain(html) {
  401. var text = '';
  402. var parser = new htmlparser.Parser( {
  403. ontext: (htmltext) => {
  404. text += htmltext.escapeFormatting();
  405. }
  406. }, {decodeEntities:true} );
  407. parser.write( html );
  408. parser.end();
  409. return text;
  410. };
  411. module.exports = {
  412. name: 'diff',
  413. run: fandom_diff
  414. };