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How to save file and click ok from download dialog box using RSelenium?

I have the following HTML:

<a href='file.php?jobid=705945&amp;coeffi=0&amp;model=0&amp;filetype=model_bz2'>Download all Models for all Coefficients</a>

With this code, I tried to download the file

library(RSelenium)
webpage <- "https://cluspro.bu.edu/models.php?job=705945"
browser <- remoteDriver(port = 5556)
browser$open()
browser$navigate(webpage)

clk <- browser$findElement(using = "link text", "Use the server without the benefits of your own account")
clk$clickElement()

  dnl_models <- browser$findElement(using = "link text", "Download all Models for all Coefficients")
dnl_models$clickElement()

Then it brings me to a dialog like this:

在此处输入图片说明

How can I save file and click ok with RSelenium?


This is the full HTML:

        <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
            <html xmlns="http://www.w3.org/1999/xhtml">
        <head>
        <title>ClusPro 2.0: protein-protein docking</title>
            <meta http-equiv="content-type" content="text/html; charset=utf-8" />
      <link rel='stylesheet' type='text/css' href='/css/style.css' />
      <link rel='stylesheet' type='text/css' href='/css/loginform.css' />
      <link rel='stylesheet' type='text/css' href='/css/signupform.css' />
      <link rel='stylesheet' type='text/css' href='/css/contactform.css' />
      <link rel='stylesheet' type='text/css' href='/css/jobsform.css' />
      <link rel='stylesheet' type='text/css' href='/css/goodform.css' />
      <link rel="stylesheet" type="text/css" href="//cdnjs.cloudflare.com/ajax/libs/yui/2.9.0/grids/grids-min.css" />
      <style type="text/css">#tabResults { font-weight:bold; }</style>      <link rel="shortcut icon" href="/favicon.png" type="image/png" />
      <script type="text/javascript" src="/js/jquery-3.5.1.min.js"></script>
      <script type="text/javascript" src="/js/jquery.equalheights.js"></script>
      
                     <script type="text/javascript">
                  
   var models = {
      reinit: function(){
         var showmodels = $('#showmodels').prop('value');
         $('td:gt('+showmodels+')').hide();
         $('td:eq('+showmodels+')').hide();
         $('td:lt('+showmodels+')').show();
         $('#modelslink').prop('href', 'zipmodels.php?job=705945&coeffi=0&nmodels='+showmodels);
      }
   }
$(document).ready(function(){
   models.reinit();
   $('#showmodels').change(models.reinit);
})
               </script>
    </head>

    <body>
      <div id="doc">
        <div id="hd">
          <ul id='tabs-menu'>
            <li><a id='tabContact' href='/contact.php'>Contact</a></li>
            <li><a id='tabHelp' href='/help.php'>Help</a></li>
            <li><a id='tabPapers' href='/publications.php'>Papers</a></li>
                        <li><a id='tabResults' href='/results.php'>Results</a></li>
            <li><a id='tabQueue' href='/queue.php'>Queue</a></li>
            <li><a id='tabDimer' href='/dimer_predict/submit.php'>Dimer Classification</a></li>
            <li><a id='tabPeptide' href='/peptide/index.php'>Peptide Docking</a></li>
            <li><a id='tabDock' href='/home.php'>Dock</a></li>
          </ul>
          <img src='/image/ClusPro1.png' width='750' height='160' alt=''/>
        </div>
    <div id="bd">
        
          
        <div id='main-header-right'>
          <a href='/logout.php'>sign out</a>
        </div>
       <h3><a href='jobdetail.php?job=705945'>Job Details</a>: lrp1_vs_Hx1sh2</h3><h4><a href='scores.php?job=705945&coeffi=0'>View Model Scores</a></h4><a href='file.php?jobid=705945&amp;coeffi=0&amp;model=0&amp;filetype=model_bz2'>Download all Models for all Coefficients</a><div style="padding-top:1em;">Balanced | <a href='models.php?job=705945&amp;coeffi=2'>Electrostatic-favored</a> | <a href='models.php?job=705945&amp;coeffi=4'>Hydrophobic-favored</a> | <a href='models.php?job=705945&amp;coeffi=6'>VdW+Elec</a></div><br /><div>Display Models: <form style='display:inline;'><select id='showmodels'><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='23'>23</option></select></form></div><br /><a id='modelslink' href=''>Download Displayed Models</a><br /><br /><strong>If you use these models in a paper, please cite our <a href='publications.php'>papers</a></strong><br /><br /><table class='nice' id='models'><tr><td><a href='file.php?jobid=705945&amp;coeffi=0&amp;model=0&amp;filetype=model_file'>0</a><br /><br /><img src='file.php?jobid=705945&amp;coeffi=0&amp;model=0&amp;filetype=model_img' alt='0' /></td><td><a href='file.php?jobid=705945&amp;coeffi=0&amp;model=1&amp;filetype=model_file'>1</a><br /><br /><img src='file.php?jobid=705945&amp;coeffi=0&amp;model=1&amp;filetype=model_img' alt='1' /></td></tr><tr><td><a href='file.php?jobid=705945&amp;coeffi=0&amp;model=2&amp;filetype=model_file'>2</a><br /><br /><img src='file.php?jobid=705945&amp;coeffi=0&amp;model=2&amp;filetype=model_img' alt='2' /></td><td><a href='file.php?jobid=705945&amp;coeffi=0&amp;model=3&amp;filetype=model_file'>3</a><br /><br /><img src='file.php?jobid=705945&amp;coeffi=0&amp;model=3&amp;filetype=model_img' alt='3' /></td></tr><tr><td><a href='file.php?jobid=705945&amp;coeffi=0&amp;model=4&amp;filetype=model_file'>4</a><br /><br /><img src='file.php?jobid=705945&amp;coeffi=0&amp;model=4&amp;filetype=model_img' alt='4' /></td><td><a href='file.php?jobid=705945&amp;coeffi=0&amp;model=5&amp;filetype=model_file'>5</a><br /><br /><img src='file.php?jobid=705945&amp;coeffi=0&amp;model=5&amp;filetype=model_img' alt='5' /></td></tr><tr><td><a href='file.php?jobid=705945&amp;coeffi=0&amp;model=6&amp;filetype=model_file'>6</a><br /><br /><img src='file.php?jobid=705945&amp;coeffi=0&amp;model=6&amp;filetype=model_img' alt='6' /></td><td><a href='file.php?jobid=705945&amp;coeffi=0&amp;model=7&amp;filetype=model_file'>7</a><br /><br /><img src='file.php?jobid=705945&amp;coeffi=0&amp;model=7&amp;filetype=model_img' alt='7' /></td></tr><tr><td><a href='file.php?jobid=705945&amp;coeffi=0&amp;model=8&amp;filetype=model_file'>8</a><br /><br /><img src='file.php?jobid=705945&amp;coeffi=0&amp;model=8&amp;filetype=model_img' alt='8' /></td><td><a href='file.php?jobid=705945&amp;coeffi=0&amp;model=9&amp;filetype=model_file'>9</a><br /><br /><img src='file.php?jobid=705945&amp;coeffi=0&amp;model=9&amp;filetype=model_img' alt='9' /></td></tr><tr><td><a href='file.php?jobid=705945&amp;coeffi=0&amp;model=10&amp;filetype=model_file'>10</a><br /><br /><img src='file.php?jobid=705945&amp;coeffi=0&amp;model=10&amp;filetype=model_img' alt='10' /></td><td><a href='file.php?jobid=705945&amp;coeffi=0&amp;model=11&amp;filetype=model_file'>11</a><br /><br /><img src='file.php?jobid=705945&amp;coeffi=0&amp;model=11&amp;filetype=model_img' alt='11' /></td></tr><tr><td><a href='file.php?jobid=705945&amp;coeffi=0&amp;model=12&amp;filetype=model_file'>12</a><br /><br /><img src='file.php?jobid=705945&amp;coeffi=0&amp;model=12&amp;filetype=model_img' alt='12' /></td><td><a href='file.php?jobid=705945&amp;coeffi=0&amp;model=13&amp;filetype=model_file'>13</a><br /><br /><img src='file.php?jobid=705945&amp;coeffi=0&amp;model=13&amp;filetype=model_img' alt='13' /></td></tr><tr><td><a href='file.php?jobid=705945&amp;coeffi=0&amp;model=14&amp;filetype=model_file'>14</a><br /><br /><img src='file.php?jobid=705945&amp;coeffi=0&amp;model=14&amp;filetype=model_img' alt='14' /></td><td><a href='file.php?jobid=705945&amp;coeffi=0&amp;model=15&amp;filetype=model_file'>15</a><br /><br /><img src='file.php?jobid=705945&amp;coeffi=0&amp;model=15&amp;filetype=model_img' alt='15' /></td></tr><tr><td><a href='file.php?jobid=705945&amp;coeffi=0&amp;model=16&amp;filetype=model_file'>16</a><br /><br /><img src='file.php?jobid=705945&amp;coeffi=0&amp;model=16&amp;filetype=model_img' alt='16' /></td><td><a href='file.php?jobid=705945&amp;coeffi=0&amp;model=17&amp;filetype=model_file'>17</a><br /><br /><img src='file.php?jobid=705945&amp;coeffi=0&amp;model=17&amp;filetype=model_img' alt='17' /></td></tr><tr><td><a href='file.php?jobid=705945&amp;coeffi=0&amp;model=18&amp;filetype=model_file'>18</a><br /><br /><img src='file.php?jobid=705945&amp;coeffi=0&amp;model=18&amp;filetype=model_img' alt='18' /></td><td><a href='file.php?jobid=705945&amp;coeffi=0&amp;model=19&amp;filetype=model_file'>19</a><br /><br /><img src='file.php?jobid=705945&amp;coeffi=0&amp;model=19&amp;filetype=model_img' alt='19' /></td></tr><tr><td><a href='file.php?jobid=705945&amp;coeffi=0&amp;model=20&amp;filetype=model_file'>20</a><br /><br /><img src='file.php?jobid=705945&amp;coeffi=0&amp;model=20&amp;filetype=model_img' alt='20' /></td><td><a href='file.php?jobid=705945&amp;coeffi=0&amp;model=21&amp;filetype=model_file'>21</a><br /><br /><img src='file.php?jobid=705945&amp;coeffi=0&amp;model=21&amp;filetype=model_img' alt='21' /></td></tr><tr><td><a href='file.php?jobid=705945&amp;coeffi=0&amp;model=22&amp;filetype=model_file'>22</a><br /><br /><img src='file.php?jobid=705945&amp;coeffi=0&amp;model=22&amp;filetype=model_img' alt='22' /></td><td>23<br /><br />(image not found)</td></tr></table>        </div>
        <div id="ft">
          ClusPro should only be used for noncommercial purposes.
          <br/>
          <a href='https://www.vajdalab.org' target='_blank'>Vajda Lab</a> and <a href='http://abcgroup.cluspro.org'>ABC Group</a>
          <br/>
          <a href='https://www.bu.edu/'>Boston University</a> and <a href='http://www.stonybrook.edu'>Stony Brook University</a>
        </div>
      </div>

    </body>
  </html>

Add the following to your existing setup, some of which you may already have, just shown here to illustrate, basically supressing the download popup, as well never asking to save for that mime type (bz2)

require(RSelenium)
dirdownload <- paste0(getwd(), "/path_to/my_output_dir/") %>% stringr::str_replace_all("/", "\\\\\\\\") # this is an old bug that had issues with the linux / mac os path slashes, this was the workaround
fprof <- makeFirefoxProfile(list(browser.download.dir = dirdownload,
                                 browser.download.folderList = 2,
                                 browser.download.manager.showWhenStarting = FALSE,
                                 browser.helperApps.neverAsk.saveToDisk = "application/x-bzip2"))
RSelenium::startServer()
remDr <- remoteDriver(extraCapabilities = fprof)

To download in the working directory, you can try,

library(stringr)
fold = str_replace_all(getwd(), '/', '\\\\')

fprof <- makeFirefoxProfile(list(browser.download.dir = fold,
                                 browser.download.folderList = 2,
                                 browser.download.manager.showWhenStarting = FALSE,
                                 browser.helperApps.neverAsk.saveToDisk = "application/x-bzip2"))

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