[Deprecated] LoveIt model for Taberareloo cf.) https://github.com/YungSang/patches-for-taberareloo/blob/master/models/model.loveit.tbrl.js

model.loveit.js

Models.register({
  name      : 'LoveIt',
  ICON      : 'http://assets.loveit.com/assets/favicon.ico',
  LINK      : 'http://loveit.com/',
  LOGIN_URL : 'http://loveit.com/me/login',

  BOOKMARK_URL : 'http://loveit.com/loves/bookmarklet/create',
  UPLOAD_URL   : 'http://loveit.com/loves/upload/image',
  POST_URL     : 'http://loveit.com/loves/upload/create',

  check : function(ps) {
    return (/photo/).test(ps.type) && !ps.file;
  },

  collections : null,

  getCollections : function() {
    return this.collections;
  },

  _getCollections : function(check_login) {
    var self = this;
    return request(this.BOOKMARK_URL + '?' + queryString({
      type : 'image',
      src  : 'http://assets.loveit.com/assets/loveIt_squirrel.jpg'
    })).addCallback(function(res) {
      var doc = createHTML(res.responseText);
      if (check_login && !$X('id("board_id")', doc)) {
        throw new Error(chrome.i18n.getMessage('error_notLoggedin', self.name));
      }
      var collections = [];
      $X('id("board_id")/option', doc).forEach(function(option) {
        collections.push({
          id   : $X('./@value', option)[0],
          name : $X('./text()', option)[0]
        });
      });
      return self.collections = collections;
    });
  },

  getCSRFToken : function() {
    var self = this;
    return request(this.LINK).addCallback(function(res) {
      var doc = createHTML(res.responseText);
      if ($X('//a[@href="/me/login"]', doc)[0]) {
        throw new Error(chrome.i18n.getMessage('error_notLoggedin', self.name));
      }
      return $X('//meta[@name="csrf-token"]/@content', doc)[0];
    });
  },

  getMostRecentCollectionId : function() {
    var self = this;
    return getCookies('loveit.com', 'most_recent_board_id').addCallback(function(cookies) {
      if (cookies.length) {
        return cookies[cookies.length-1].value;
      } else {
        return self._getCollections(true).addCallback(function(collections) {
          return collections && collections[0] && collections[0].id;
        });
      }
    });
  },

  post : function(ps) {
    var self = this;

    var description = '';
    if (ps.description || ps.body) {
      description = joinText([
        ps.description,
        (ps.body) ? '“' + ps.body + '”' : ''
      ], "\n\n", true);
    }

    var sendContent = {};
    if (ps.file) {
      description = joinText([
        description,
        '(via ' + ps.pageUrl + ' )'
      ], "\n\n", true);
      return this.upload(ps, description);
    }
    else {
      sendContent = {
        utf8        : '✓',
        form_submit : 1,
        src         : ps.itemUrl,
        ref         : ps.pageUrl,
        title       : ps.item || ps.page,
        description : description,
      };
    }

    return this.getCSRFToken().addCallback(function(csrftoken) {
      sendContent.authenticity_token = csrftoken;
      return self.getMostRecentCollectionId().addCallback(function(board_id) {
        sendContent.board_id = board_id;
        return request(self.BOOKMARK_URL, {
          sendContent : sendContent
        }).addCallback(function(res) {
        });
      });
    });
  },

  uploadImage : function(ps, csrftoken) {
    return request(this.UPLOAD_URL, {
      sendContent : {
        the_image : ps.file
      },
      headers : {
        'X-CSRF-Token'     : csrftoken,
        'X-Requested-With' : 'XMLHttpRequest'
      }
    }).addCallback(function(res) {
      try {
        var json = JSON.parse(res.responseText);
      }
      catch(e) {
        throw new Error("Couldn't upload an image properly");
      }
      if (json && json.image) {
        return json.image;
      }
      else {
        throw new Error("Couldn't upload an image properly");
      }
    });
  },

  upload : function(ps, description) {
    var self = this;
    return this.getCSRFToken().addCallback(function(csrftoken) {
      return self.uploadImage(ps, csrftoken).addCallback(function(image) {
        return self.getMostRecentCollectionId().addCallback(function(board_id) {
          return request(self.POST_URL, {
            sendContent : {
              image_id    : image.id,
              board_id    : board_id,
              description : description
            },
            headers : {
              'X-CSRF-Token'     : csrftoken,
              'X-Requested-With' : 'XMLHttpRequest'
            }
          }).addCallback(function(res) {
            try {
              var json = JSON.parse(res.responseText);
            }
            catch(e) {
              throw new Error("Couldn't upload an image properly");
            }
            if (json && json.pin && json.pin.pin && json.pin.pin.id) {
              return;
            }
            else {
              throw new Error("Couldn't upload an image properly");
            }
          });
        });
      });
    });
  }
});

Version 2:
https://github.com/YungSang/patches-for-taberareloo/blob/master/models/model.loveit.tbrl.js