download_ebscohost.js

// Downloads unwatermarked invidiual pages of books from EBSCOhost
var data = /\/ebook\/(.+?)\?sid=(.+?)&/.exec(location.href);
$.getJSON(`/ehost/ebookViewer/DigitalObject/${data[1]}?sid=${data[2]}&vid=0&theFormat=EB`).then(function(json) {
  var pages = json.pageData.map(function(page) {
    return {
      filename: `${json.title.replace(/\s/,'_')}_${page.id}`,
      url: `${location.origin}/ehost/ebookviewer/artifact/${data[1]}/EB/${data[2]}/0/${page.artifactId}`
    };
  });
  
  // this fails for >~ 40 pages due to too many simultaneous downloads
  // consider logging the file urls and downloading separately
  pages.forEach(function(page) {
    var a = document.createElement('a');
    a.download = page.filename;
    a.href = page.url;
    a.click();
  })
});