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Reddit Video Downloader

A script to that allows you to download videos hosted on Reddit by pressing Ctrl+S or Meta+S on the comments section.

  1. // ==UserScript==
  2. // @name                Reddit Video Downloader
  3. // @author              Berk "SAS41" Alyamach
  4. // @homepage            https://github.com/sas41/
  5. // @homepageURL         https://github.com/sas41/
  6. // @description         A script to that allows you to download videos hosted on Reddit by pressing Ctrl+S or Meta+S on the comments section.
  7.  
  8. // @icon                https://github.com/sas41/RedditVideoDownloader/blob/master/icons/RVD_icon_32.png?raw=true
  9. // @iconURL             https://github.com/sas41/RedditVideoDownloader/blob/master/icons/RVD_icon_32.png?raw=true
  10. // @icon64URL           https://github.com/sas41/RedditVideoDownloader/blob/master/icons/RVD_icon_64.png?raw=true
  11.  
  12. // @copyright           2018, Berk (sas41) Alyamach - https://github.com/sas41/
  13. // @license             MIT
  14. // @grant               none
  15.  
  16. // @contributionAmount  €1.00
  17. // @contributionURL     https://www.paypal.me/sas41/1
  18.  
  19. // @namespace           reddit
  20. // @include             *://*reddit.com/r/*/*/*/*
  21.  
  22. // @supportURL          https://github.com/sas41/RedditVideoDownloader/issues
  23. // @version             1.0.5
  24. // ==/UserScript==
  25.  
  26. // ==OpenUserJS==
  27. // @author              sas41
  28. // @contributionAmount  €1.00
  29. // @contributionURL     https://www.paypal.me/sas41/1
  30. // ==/OpenUserJS==
  31.  
  32. var jsonLink = document.location.href.split('?')[0] + '.json';
  33. var downloadLink = '';
  34.  
  35. function getJSON(url)
  36. {
  37.     var xhr = new XMLHttpRequest();
  38.     xhr.open('GET', url, true);
  39.     xhr.responseType = 'json';
  40.     xhr.onload = function()
  41.     {
  42.         var status = xhr.status;
  43.         if (status === 200)
  44.         {
  45.             var response = xhr.response;
  46.             if (!response[0].data.children[0].data.secure_media.reddit_video.is_gif)
  47.             {
  48.                 if(confirm('Unfortunately, Reddit doesn\'t support saving of audio along with the video, Download without audio?'))
  49.                 {
  50.                     downloadLink = response[0].data.children[0].data.secure_media.reddit_video.fallback_url;
  51.                     downloadURI(downloadLink,'');
  52.                 }
  53.             }
  54.             else
  55.             {
  56.                 downloadLink = response[0].data.children[0].data.secure_media.reddit_video.fallback_url;
  57.                     downloadURI(downloadLink,'');
  58.             }
  59.         }
  60.         else
  61.         {
  62.             alert('Sorry, Download Failed');
  63.         }
  64.     };
  65.     xhr.send();
  66. }
  67.  
  68. function downloadURI(url, n)
  69. {
  70.     var save = document.createElement('a');
  71.     save.href = url;
  72.     save.download = n || url;
  73.     
  74.     var event = document.createEvent("MouseEvents");
  75.     event.initMouseEvent("click", true, false, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);
  76.     save.dispatchEvent(event);
  77.  
  78.     try
  79.     {
  80.         document.body.removeChild(save);
  81.     }
  82.     catch(err){}
  83. }
  84.  
  85. document.addEventListener('keydown', (event) => {
  86.     if (event.ctrlKey || event.metaKey)
  87.     {
  88.         if (event.key === 's' || event.key === 'S' )
  89.         {
  90.             event.preventDefault();
  91.             getJSON(jsonLink);
  92.         }
  93.     }
  94. });