Add tests for Mediawiki capabilities, improve checkApiAvailability() …

…method

src/util/const.ts

@@ -21,3 +21,8 @@ export const WEBP_HANDLER_URL = 'https://gist.githubusercontent.com/rgaudin/60bb
 export const MAX_FILE_DOWNLOAD_RETRIES = 5
 export const BLACKLISTED_NS = ['Story'] // 'Story' Wikipedia namespace is content, but not indgestable by Parsoid https://github.com/openzim/mwoffliner/issues/1853
 export const RENDERERS_LIST = ['WikimediaDesktop', 'VisualEditor', 'WikimediaMobile', 'MediawikiRestApi']
+/*
+ Handle redirection pages for 3rd party wikis that have 200 response code
+ Check this link: https://pokemon.fandom.com/w/api.php?action=visualeditor&mobileformat=html&format=json&paction=parse&formatversion=2&page=MediaWiki%3ASidebar
+*/
+export const REDIRECT_PAGE_SIGNATURE = 'Moved to'

src/util/mw-api.ts

@@ -6,6 +6,7 @@ import Timer from './Timer.js'
 import axios from 'axios'
 import RedisStore from '../RedisStore.js'
 import MediaWiki from '../MediaWiki.js'
+import { REDIRECT_PAGE_SIGNATURE } from './const.js'
 
 export async function getArticlesByIds(articleIds: string[], downloader: Downloader, log = true): Promise<void> {
   let from = 0
@@ -260,7 +261,11 @@ export function mwRetToArticleDetail(obj: QueryMwRet): KVS<ArticleDetail> {
 export async function checkApiAvailability(url: string, loginCookie = ''): Promise<boolean> {
   try {
     const resp = await axios.get(decodeURI(url), { maxRedirects: 0, headers: { cookie: loginCookie } })
-    return resp.status === 200 && !resp.headers['mediawiki-api-error']
+
+    const isRedirectPage = typeof resp.data === 'string' && resp.data.startsWith(REDIRECT_PAGE_SIGNATURE)
+    const isSuccess = resp.status === 200 && !resp.headers['mediawiki-api-error']
+
+    return !isRedirectPage && isSuccess
   } catch (err) {
     return false
   }

test/e2e/openstreetmap.e2e.test.ts

@@ -53,5 +53,5 @@ await testRenders(
       })
     })
   },
-  ['MediawikiRestApi'],
+  ['MediawikiRestApi', 'VisualEditor'],
 )

test/e2e/wikisource.e2e.test.ts

@@ -63,5 +63,5 @@ await testRenders(
       }
     })
   },
-  ['WikimediaDesktop', 'VisualEditor'],
+  ['WikimediaDesktop', 'VisualEditor', 'MediawikiRestApi'],
 )

test/unit/mwApiCapabilities.test.ts

@@ -0,0 +1,85 @@
+import MediaWiki from '../../src/MediaWiki.js'
+
+describe('Checking Mediawiki capabilities', () => {
+  beforeEach(() => {
+    MediaWiki.reset()
+  })
+
+  afterEach(() => {
+    MediaWiki.reset()
+  })
+
+  test('test capabilities of en.wikipedia.org', async () => {
+    MediaWiki.base = 'https://en.wikipedia.org'
+    expect(await MediaWiki.hasWikimediaDesktopApi()).toBe(true)
+    expect(await MediaWiki.hasWikimediaMobileApi()).toBe(true)
+    expect(await MediaWiki.hasMediawikiRestApi()).toBe(true)
+    expect(await MediaWiki.hasVisualEditorApi()).toBe(true)
+  })
+
+  test('test capabilities of wiki.openstreetmap.org', async () => {
+    MediaWiki.base = 'https://wiki.openstreetmap.org'
+
+    expect(await MediaWiki.hasWikimediaDesktopApi()).toBe(false)
+    expect(await MediaWiki.hasWikimediaMobileApi()).toBe(false)
+    expect(await MediaWiki.hasMediawikiRestApi()).toBe(true)
+    expect(await MediaWiki.hasVisualEditorApi()).toBe(true)
+  })
+
+  test('test capabilities of fo.wikisource.org', async () => {
+    MediaWiki.base = 'https://fo.wikisource.org'
+
+    expect(await MediaWiki.hasWikimediaDesktopApi()).toBe(true)
+    expect(await MediaWiki.hasWikimediaMobileApi()).toBe(false)
+    expect(await MediaWiki.hasMediawikiRestApi()).toBe(true)
+    expect(await MediaWiki.hasVisualEditorApi()).toBe(true)
+  })
+
+  test('test capabilities of minecraft.wiki with correct VisualEditor receipt', async () => {
+    MediaWiki.base = 'https://minecraft.wiki'
+    MediaWiki.wikiPath = '/'
+    MediaWiki.actionApiPath = 'api.php'
+
+    expect(await MediaWiki.hasWikimediaDesktopApi()).toBe(false)
+    expect(await MediaWiki.hasWikimediaMobileApi()).toBe(false)
+    expect(await MediaWiki.hasMediawikiRestApi()).toBe(false)
+    expect(await MediaWiki.hasVisualEditorApi()).toBe(true)
+  })
+
+  test('test capabilities of pokemon.fandom.com with correct VisualEditor receipt', async () => {
+    MediaWiki.base = 'https://pokemon.fandom.com/'
+    MediaWiki.wikiPath = '/'
+    MediaWiki.actionApiPath = 'api.php'
+
+    expect(await MediaWiki.hasWikimediaDesktopApi()).toBe(false)
+    expect(await MediaWiki.hasWikimediaMobileApi()).toBe(false)
+    expect(await MediaWiki.hasMediawikiRestApi()).toBe(false)
+    expect(await MediaWiki.hasVisualEditorApi()).toBe(true)
+  })
+
+  test('test capabilities of pokemon.fandom.com with default receipt', async () => {
+    MediaWiki.base = 'https://pokemon.fandom.com/'
+
+    expect(await MediaWiki.hasWikimediaDesktopApi()).toBe(false)
+    expect(await MediaWiki.hasWikimediaMobileApi()).toBe(false)
+    expect(await MediaWiki.hasMediawikiRestApi()).toBe(false)
+    expect(await MediaWiki.hasVisualEditorApi()).toBe(false)
+  })
+
+  test('test capabilities of pokemon.fandom.com with MediawikiRestApi receipt', async () => {
+    MediaWiki.base = 'https://pokemon.fandom.com/'
+    MediaWiki.wikiPath = '/'
+    MediaWiki.mediawikiRestApiPath = 'rest.php/v1/page/'
+
+    expect(await MediaWiki.hasWikimediaDesktopApi()).toBe(false)
+    expect(await MediaWiki.hasWikimediaMobileApi()).toBe(false)
+    expect(await MediaWiki.hasVisualEditorApi()).toBe(false)
+
+    /* TODO:
+      Title MediaWiki:Sidebar does not exist for Mediawiki Rest Api in pokemon.fandom.com for some reason. This will lead to incorrect capability check
+      See: https://pokemon.fandom.com/rest.php/v1/page/MediaWiki%3ASidebar/html
+    */
+    MediaWiki.apiCheckArticleId = 'Volcarona'
+    expect(await MediaWiki.hasMediawikiRestApi()).toBe(true)
+  })
+})