[Manual] Add scripts and raw wiki

Wiki/tiddlers/$__Macros_MediaWiki_GetCover.js

@@ -0,0 +1,32 @@
+/*\
+Get the cover image from a MediaWiki article.
+[<<]MediaWikiGetCover "Article" "Full Domain OR Wikipedia Subdomain" "Manual URL OR NULL"[>>]
+\*/
+
+(function(){
+"use strict";
+exports.name = "MediaWikiGetCover";
+exports.params = [
+  {name: "Article"},
+  {name: "Domain"},
+  {name: "URL"},
+];
+
+exports.run = function(Article, Domain, URL) {
+try {
+  if (!URL || URL && !$OcttKB.Options.Nulls.includes(URL.toLowerCase())) {
+    let File;
+    Domain = $OcttKB.MediaWiki.MkDomain(Domain);
+    const Req = new XMLHttpRequest();
+    Req.open('GET', Domain + '/w/api.php?action=query&prop=pageimages&format=json&piprop=original&origin=*&titles=' + Article, false);
+    Req.send();
+    File = Object.values(JSON.parse(Req.responseText).query.pages)[0];
+    if (File && File.original && File.original.source) {
+      return `<img src="${File.original.source}">`;
+    };
+  };
+  return '';
+} catch(e) {
+  return $OcttKB.ErrAtLine(e);
+};
+}})();