tumblr_reblog.js

/*
 * 現在のページ (http://$username.tumblr.com/post/$id のような) を reblog するコマンドを提供する Vimperator plugin
 * _libly.js 必須
 * 全面的に http://coderepos.org/share/browser/lang/javascript/userscripts/reblogcommand.user.js を参考にした
 */

(function() {
  commands.addUserCommand(['reblog'], 'reblog this post', function() reblog(buffer.URI), { argCount: '0' });

  let libly = liberator.plugins.libly;
  let $U = libly.$U;

  function reblog(postUrl) {
    function fail() liberator.echoerr('reblog failed: ' + postUrl);

    let iframes = $U.getNodesFromXPath('//iframe[@src]').filter(function(e) /^http:\/\/.+\.tumblr\.com\//.test(e.src));
    if (iframes.length != 1) {
      liberator.echoerr('not a tumblr page? ' + postUrl);
      return;
    }
    let m = decodeURIComponent(iframes[0].src).match(/&pid=([^&]+)&rk=([^&]+)/);
    if (!m) {
      liberator.echoerr('not a tumblr page? ' + postUrl);
      return;
    }
    let endpoint = 'http://www.tumblr.com/reblog/' + m[1] + '/' + m[2] + '?redirect_to=/dashboard';

    let req = new libly.Request(endpoint);
    req.addEventListener('onSuccess', function(res) {
      let params = [];
      res.getHTMLDocument(
        'id("edit_post")//input | id("edit_post")//textarea | id("edit_post")//select'
      ).forEach(function(e) {
        if (e.name != 'preview_post' && e.name != 'send_to_twitter') {
          params.push([e.name, e.value].map(encodeURIComponent).join('='));
        }
      });
      let req = new libly.Request(endpoint, null, { postBody: params.join('&') });
      req.addEventListener('onSuccess', function() liberator.echo('reblogged ' + postUrl));
      req.addEventListener('onFailure', fail);
      req.addEventListener('onException', fail);
      req.post();
    });
    req.addEventListener('onFailure', fail);
    req.addEventListener('onException', fail);
    req.get();
  }
})();