endless summer on dsbd

by taizooo 2014-09-01 [2014/09/01 20:21:47]

promotion version (Exponential Endless Summer)

@@ -1,6 +1,6 @@
 /*
  * @title endless summer on dsbd 
- * @description presentation version
+ * @description promotion version
  * @include http://www.tumblr.com/*
  * @license reblog commons license ( cc by 3.0 )
  */

• /*
   * @title endless summer on dsbd 
   * @description promotion version
   * @include http://www.tumblr.com/*
   * @license reblog commons license ( cc by 3.0 )
   */
  
  var re = /(?:^http:\/\/www\.tumblr\.com\/dashboard|(?:\/blog\/[-\w]+)?\/show\/\w+|\/blog\/[-\w]+)/;
  var now_url = location.href;
  var oldest_id = 264102; // http://ku.tumblr.com/post/264102
  var latest_id = get_latest_id(document);
  
  var State = true;
  var HTML_NAMESPACE = 'http://www.w3.org/1999/xhtml';
  var BASE_REMAIN_HEIGHT = 10000;
  var loading = false;
  
  var last_element = get_next_elements(document).pop();
  if (!last_element) {
    return error();
  }
  insert_point = last_element.nextSibling;
  insert_parent = last_element.parentNode;
  
  next_page_load();
  
  window.addEventListener('scroll', function () {
    if (loading) return;
    var remain = document.documentElement.scrollHeight - window.innerHeight - window.pageYOffset;
    if (State && remain < BASE_REMAIN_HEIGHT) {
      next_page_load();
    }
  }, false);
  
  function next_page_load() {
    loading = true;
    var next = get_next(now_url);
    console.log(next);
    var x = new XMLHttpRequest();
    x.onload = function () {
      if (x.status <= 200 && x.status < 300) {
        load(x);
      } else {
        error();
        next_page_load();
      }
    };
    x.open('GET', next, true);
    x.send(null);
  }
  
  function load(x) {
    var html = x.responseText.replace(/<script(?:[ \t\r\n][^>]*)?>[\S\s]*?<\/script[ \t\r\n]*>|<\/?(?:i?frame|html|script|object)(?:[ \t\r\n][^<>]*)?>/gi, ' ');
    var htmlDoc;
    if (document.implementation.createHTMLDocument) {
      htmlDoc = document.implementation.createHTMLDocument('hogehoge')
    } else {
      htmlDoc = document.cloneNode(false);
      if (htmlDoc) {
        htmlDoc.appendChild(htmlDoc.importNode(document.documentElement, false));
      } else {
        htmlDoc = document.implementation.createDocument(null, 'html', null);
      }
    }
    var range = document.createRange();
    range.selectNodeContents(document.documentElement);
    htmlDoc.documentElement.appendChild(range.createContextualFragment(html));
    var docs = get_next_elements(htmlDoc);
    if (!docs.length) {
      error();
      return next_page_load();
    }
    target_rewrite(docs);
    img_cache(docs);
    docs = docs.map(function (doc) {
      return insert_parent.insertBefore(document.importNode(doc, true), insert_point);
    });
    loading = false;
  }
  
  function get_next_elements(doc) {
    var r = doc.evaluate('id("posts")/li[starts-with(@id,"post_")]', doc, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
    for (var i = 0, l = r.snapshotLength, res = new Array(l); i < l; i++) res[i] = r.snapshotItem(i);
    return res;
  }
  
  function target_rewrite(docs) {
    docs.forEach(function (doc) {
      var as = doc.getElementsByTagName('a');
      for (var i = 0, l = as.length; i < l; i++) {
        var a = as[i],_a = a.getAttribute('href');
        if (_a && !/^javascript:/.test(_a) && !/^#/.test(_a)) a.setAttribute('target', '_blank');
      }
    });
  }
  
  function img_cache(docs) {
    docs.forEach(function (doc) {
      var is = doc.getElementsByTagName('img');
      for (var i = 0, l = is.length; i < l; i++) {
        img = new Image();
        img.src = is[i].src;
      }
    });
  }
  
  function error() {
    return console.log('error');
    State = false;
  }
  
  function terminate() {
    return console.log('terminate');
    State = false;
  }
  
  function get_latest_id(doc) {
    return doc.evaluate('number(substring-after(id("posts")/li[starts-with(@id,"post_")]/@id,"post_"))', doc, null, XPathResult.NUMBER_TYPE, null).numberValue;
  }
  
  function get_next(url) {
    var rumdom_id = getRandom();
    return re.exec(url)[0] + '/2?offset=' + rumdom_id;
  }
  
  function getRandom() {
    var a = [{
      'year': '2007',
      'min': 765,
      'max': 22716604,
      'url': 'http://kagurazakaundergroundresistance.tumblr.com/post/22716604'
    }, {
      'year': '2008',
      'min': 22716605,
      'max': 67666062,
      'url': 'http://kagurazakaundergroundresistance.tumblr.com/post/67666062'
    }, {
      'year': '2009',
      'min': 67666063,
      'max': 309781568,
      'url': 'http://kagurazakaundergroundresistance.tumblr.com/post/309781568'
    }, {
      'year': '2010',
      'min': 309781569,
      'max': 2542121207,
      'url': 'http://kagurazakaundergroundresistance.tumblr.com/post/2542121207'
    }, {
      'year': '2011',
      'min': 2542121208,
      'max': 15080900593,
      'url': 'http://kagurazakaundergroundresistance.tumblr.com/post/15080900593'
    }, {
      'year': 'now',
      'min': 15080900593,
      'max': latest_id,
      'url': 'http://kagurazakaundergroundresistance.tumblr.com/post/19893333892'
    }];
    var c = Math.floor(Math.random() * a.length);
    var d = Math.floor(Math.random() * (a[c].max - a[c].min + 1)) + a[c].min;
    if (d < oldest_id) {
      return choice();
    }
    console.log([d, a[c].year, a[c].max, a[c].min, c]);
    return d;
  }

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  Permalink

  このページへの個別リンクです。

  RAW

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  Packed

  文字列が圧縮された書かれたコードへのリンクです。

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  Greasemonkey 等で利用する場合の .user.js へのリンクです。

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  @require やソースコードが長い場合に多段ロードする Loader コミのコードへのリンクです。

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  コード中にコメントで @xxx と書かれたメタデータの JSON です。