<?php
// macos_textutil_convert.php
// Supervise macOS (via PHP exec) textutil (command line) conversions
/* 
textutil: [command_option] [other_options] file...
Command options are (-help is the default):
 -help          show this message and exit
 -info          display information about each file
 -convert fmt   convert each input file to format (txt, rtf, rtfd,
                html, doc, docx, odt, wordml, or webarchive)
 -cat fmt       concatenate input files into one output file
There are some additional optional arguments:
 -extension ext alternate extension for all output files
 -output path   alternate file name for first output file
 -stdin         read from stdin instead of files
 -stdout        send first output file to stdout
 -encoding IANA_name|NSStringEncoding
                encoding used for plain text or html output files
                (default encoding is UTF-8)
 -inputencoding IANA_name|NSStringEncoding
                encoding used to interpret plain text input files
                (by default encoding will be detected from BOM)
 -format fmt    force input files to be interpreted in this format
 -font font     specify font used for converting plain to rich text
 -fontsize size specify font size for converting plain to rich text
 --             specifies that all further arguments are file names

 -noload        do not load subsidiary resources for html files
 -nostore       do not write out subsidiary resources for html files
 -baseurl url   base URL for subsidiary resources in html files
 -timeout t     time in seconds to wait for html resources to load
 -textsizemultiplier x
                factor to apply to font sizes in html files
 -excludedelements "(tag1, tag2, ...)"
                html elements to exclude from html output files
 -prefixspaces n
                number of spaces to indent nested html output

 -strip         do not copy metadata attributes to output files
 -title val     title metadata attribute for output files
 -author val    author metadata attribute for output files
 -subject val   subject metadata attribute for output files
 -keywords "(val1, val2, ...)"
                keywords metadata attribute for output files
 -comment val   comment metadata attribute for output files
 -editor val    last editor metadata attribute for output files
 -company val   company metadata attribute for output files
 -creationtime yyyy-mm-ddThh:mm:ssZ
                creation time metadata attribute for output files
 -modificationtime yyyy-mm-ddThh:mm:ssZ
                modification time metadata attribute for output files
*/

$thecontent="";
$tastuff="";
$doutput="";
$outfileis="";
$sufext="_0";
$iext=0;

$verb="textutil";
$switchone="-convert";
$switchtwo="-output";

if ( !file_exists( "/usr/local/bin" ) && !is_dir( "/usr/local/bin" ) ) {
if (get_env("USERPROFILE")) {
    if (file_exists(get_env("USERPROFILE") . "\\AppData\\Local\\Pandoc\\pandoc.exe")) {
      $verb=get_env("USERPROFILE") . "\\AppData\\Local\\Pandoc\\pandoc.exe";
      $switchone="-t";
      $switchtwo="-o";
      $panplus="pandoc or ";
    }
}
} else {
//exec("which pandoc > lookup_pandoc.txt 2>>&1");
//shell_exec("/usr/local/bin/pandoc --version > lookup_pandoc.txt 2>&1");
    if (file_exists("/usr/local/bin/pandoc")) {
      $verb="/usr/local/bin/pandoc";
      $switchone="-t";
      $switchtwo="-o";
      $panplus="pandoc or ";
    }
}


if (PHP_OS == "Darwin" || $verb != "textutil") {
if (isset($_GET['convertthis']) && isset($_GET['outputname'])) {
  if ($_GET['convertthis'] != "") {
  $thewords=str_replace("+"," ",urldecode($_GET['convertthis']));
  if (file_exists(str_replace("+"," ",urldecode($_GET['outputname'])))) {
    while (file_exists(str_replace("+"," ",urldecode($_GET['outputname'])) . $sufext)) {
      $iext++;
      $sufext="_" . $iext;
    }
    exec("rename " . str_replace("+"," ",urldecode($_GET['outputname'])) . " " . str_replace("+"," ",urldecode($_GET['outputname'])) . $sufext);
  }
  // pandoc -t pdf scjob.docx -o scjob.pdf  --pdf-engine=/Library/TeX/Root/bin/x86_64-darwin/pdflatex
  $cmdsuff="";
  if ($verb != "textutil" && explode(".",str_replace("+"," ",urldecode($_GET['outputname'])))[-1 + sizeof(explode(".",str_replace("+"," ",urldecode($_GET['outputname']))))] == "pdf") {
  if (file_exists("/Library/TeX/Root/bin/x86_64-darwin/pdflatex")) {
  $cmdsuff=" --pdf-engine=/Library/TeX/Root/bin/x86_64-darwin/pdflatex";
  } else if (file_exists("/Library/TeX/texbin/pdflatex")) {
  $cmdsuff=" --pdf-engine=/Library/TeX/texbin/pdflatex";
  } else {
  $cmdsuff=" --pdf-engine=pdflatex";
  }
  }
  exec($verb . " " . $switchone . " " . explode(".",str_replace("+"," ",urldecode($_GET['outputname'])))[-1 + sizeof(explode(".",str_replace("+"," ",urldecode($_GET['outputname']))))] . " " . $thewords . " " . $switchtwo . " " . str_replace("+"," ",urldecode($_GET['outputname'])) . $cmdsuff . " > macos_textutil_convert.out 2> macos_textutil_convert.err");
  if (explode(".",str_replace("+"," ",urldecode($_GET['outputname'])))[-1 + sizeof(explode(".",str_replace("+"," ",urldecode($_GET['outputname']))))] == "pdf") {
        $PDFfilename=str_replace("+"," ",urldecode($_GET['outputname']));
        $pdf = file_get_contents($PDFfilename);

        header('Content-Type: application/pdf');
        header('Cache-Control: public, must-revalidate, max-age=0'); // HTTP/1.1
        header('Pragma: public');
        header('Expires: Sat, 26 Jul 1997 05:00:00 GMT'); // Date in the past
        header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
        header('Content-Length: ' . strlen($pdf));
        header('Content-Disposition: inline; filename="' . basename($PDFfilename) .'";');
        ob_clean(); 
        flush(); 
        echo $pdf;  
        //exit; 
  } else if (explode(".",str_replace("+"," ",urldecode($_GET['outputname'])))[-1 + sizeof(explode(".",str_replace("+"," ",urldecode($_GET['outputname']))))] == "rtf") {
        $PDFfilename=str_replace("+"," ",urldecode($_GET['outputname']));
        $pdf = file_get_contents($PDFfilename);

        header('Content-Type: application/rtf');
        header('Cache-Control: public, must-revalidate, max-age=0'); // HTTP/1.1
        header('Pragma: public');
        header('Expires: Sat, 26 Jul 1997 05:00:00 GMT'); // Date in the past
        header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
        header('Content-Length: ' . strlen($pdf));
        header('Content-Disposition: inline; filename="' . basename($PDFfilename) .'";');
        ob_clean(); 
        flush(); 
        echo $pdf;  
        //exit; 
  } else if (explode(".",str_replace("+"," ",urldecode($_GET['outputname'])))[-1 + sizeof(explode(".",str_replace("+"," ",urldecode($_GET['outputname']))))] == "odt") {
        $PDFfilename=str_replace("+"," ",urldecode($_GET['outputname']));
        $pdf = file_get_contents($PDFfilename);

        header('Content-Type: application/odt');
        header('Cache-Control: public, must-revalidate, max-age=0'); // HTTP/1.1
        header('Pragma: public');
        header('Expires: Sat, 26 Jul 1997 05:00:00 GMT'); // Date in the past
        header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
        header('Content-Length: ' . strlen($pdf));
        header('Content-Disposition: inline; filename="' . basename($PDFfilename) .'";');
        ob_clean(); 
        flush(); 
        echo $pdf;  
        //exit; 
  }
  if (file_exists("macos_textutil_convert.out") && file_exists("macos_textutil_convert.err")) {
  if (filesize("macos_textutil_convert.out") == 0 && file_exists("macos_textutil_convert.err") != 0) {
    echo "<html><body onload=\" parent.document.getElementById('dothework').style.height='40px';    parent.document.getElementById('dothework').style.display='block'; \"><p>" . file_get_contents("macos_textutil_convert.err") . "</p></body></html>";
  }
  }
  exit;
  }
} else if (isset($_POST['convertthis']) && isset($_POST['outputname'])) {
  if ($_POST['convertthis'] != "") {
  $thewords=str_replace("+"," ",urldecode($_POST['convertthis']));
  if (file_exists(str_replace("+"," ",urldecode($_POST['outputname'])))) {
    while (file_exists(str_replace("+"," ",urldecode($_POST['outputname'])) . $sufext)) {
      $iext++;
      $sufext="_" . $iext;
    }
    exec("rename " . str_replace("+"," ",urldecode($_POST['outputname'])) . " " . str_replace("+"," ",urldecode($_POST['outputname'])) . $sufext);
  }
  // pandoc -t pdf scjob.docx -o scjob.pdf
  $cmdsuff="";
  if ($verb != "textutil" && explode(".",str_replace("+"," ",urldecode($_POST['outputname'])))[-1 + sizeof(explode(".",str_replace("+"," ",urldecode($_POST['outputname']))))] == "pdf") {
  if (file_exists("/Library/TeX/Root/bin/x86_64-darwin/pdflatex")) {
  $cmdsuff=" --pdf-engine=/Library/TeX/Root/bin/x86_64-darwin/pdflatex";
  } else if (file_exists("/Library/TeX/texbin/pdflatex")) {
  $cmdsuff=" --pdf-engine=/Library/TeX/texbin/pdflatex";
  } else {
  $cmdsuff=" --pdf-engine=pdflatex";
  }
  }
  exec($verb . " " . $switchone . " " . explode(".",str_replace("+"," ",urldecode($_POST['outputname'])))[-1 + sizeof(explode(".",str_replace("+"," ",urldecode($_POST['outputname']))))] . " " . $thewords . " " . $switchtwo . " " . str_replace("+"," ",urldecode($_POST['outputname'])) . $cmdsuff . " > macos_textutil_convert.out 2> macos_textutil_convert.err");
  if (explode(".",str_replace("+"," ",urldecode($_POST['outputname'])))[-1 + sizeof(explode(".",str_replace("+"," ",urldecode($_POST['outputname']))))] == "pdf") {
        $PDFfilename=str_replace("+"," ",urldecode($_POST['outputname']));
        $pdf = file_get_contents($PDFfilename);

        header('Content-Type: application/pdf');
        header('Cache-Control: public, must-revalidate, max-age=0'); // HTTP/1.1
        header('Pragma: public');
        header('Expires: Sat, 26 Jul 1997 05:00:00 GMT'); // Date in the past
        header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
        header('Content-Length: ' . strlen($pdf));
        header('Content-Disposition: inline; filename="' . basename($PDFfilename) .'";');
        ob_clean(); 
        flush(); 
        echo $pdf;  
        //exit; 
  } else if (explode(".",str_replace("+"," ",urldecode($_POST['outputname'])))[-1 + sizeof(explode(".",str_replace("+"," ",urldecode($_POST['outputname']))))] == "rtf") {
        $PDFfilename=str_replace("+"," ",urldecode($_POST['outputname']));
        $pdf = file_get_contents($PDFfilename);

        header('Content-Type: application/rtf');
        header('Cache-Control: public, must-revalidate, max-age=0'); // HTTP/1.1
        header('Pragma: public');
        header('Expires: Sat, 26 Jul 1997 05:00:00 GMT'); // Date in the past
        header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
        header('Content-Length: ' . strlen($pdf));
        header('Content-Disposition: inline; filename="' . basename($PDFfilename) .'";');
        ob_clean(); 
        flush(); 
        echo $pdf;  
        //exit; 
  } else if (explode(".",str_replace("+"," ",urldecode($_POST['outputname'])))[-1 + sizeof(explode(".",str_replace("+"," ",urldecode($_POST['outputname']))))] == "odt") {
        $PDFfilename=str_replace("+"," ",urldecode($_POST['outputname']));
        $pdf = file_get_contents($PDFfilename);

        header('Content-Type: application/odt');
        header('Cache-Control: public, must-revalidate, max-age=0'); // HTTP/1.1
        header('Pragma: public');
        header('Expires: Sat, 26 Jul 1997 05:00:00 GMT'); // Date in the past
        header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
        header('Content-Length: ' . strlen($pdf));
        header('Content-Disposition: inline; filename="' . basename($PDFfilename) .'";');
        ob_clean(); 
        flush(); 
        echo $pdf;  
        //exit; 
  }
  if (file_exists("macos_textutil_convert.out") && file_exists("macos_textutil_convert.err")) {
  if (filesize("macos_textutil_convert.out") == 0 && file_exists("macos_textutil_convert.err") != 0) {
    echo "<html><body onload=\" parent.document.getElementById('dothework').style.height='40px';  parent.document.getElementById('dothework').style.display='block'; \"><p>" . file_get_contents("macos_textutil_convert.err") . "</p></body></html>";
  }
  }
  exit;
  }
} else if ((!isset($_GET['convertthis']) && !isset($_POST['convertthis'])) || !isset($_GET['outputname']) || !isset($_POST['outputname'])) {
  $outfileis="";
  if (isset($_GET['outputname'])) {
    $extis=explode(".",str_replace("+"," ",urldecode($_GET['outputname'])))[-1 + sizeof(explode(".",str_replace("+"," ",urldecode($_GET['outputname']))))];
    if (file_exists(str_replace("+"," ",urldecode($_GET['outputname'])))) {
    if (strtolower("~" . $extis, "~htm") !== false) {
    $thecontent=file_get_contents(str_replace("+"," ",urldecode($_GET['outputname'])));
    } else if (strtolower("~" . $extis, "~pdf") !== false) { // thanks to https://stackoverflow.com/questions/12730581/use-this-php-code-to-open-a-pdf-in-a-new-tab
        if (1 == 2) {
        $PDFfilename=str_replace("+"," ",urldecode($_GET['outputname']));
        $pdf = file_get_contents($PDFfilename);

        header('Content-Type: application/pdf');
        header('Cache-Control: public, must-revalidate, max-age=0'); // HTTP/1.1
        header('Pragma: public');
        header('Expires: Sat, 26 Jul 1997 05:00:00 GMT'); // Date in the past
        header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
        header('Content-Length: ' . strlen($pdf));
        header('Content-Disposition: inline; filename="' . basename($PDFfilename) .'";');
        ob_clean(); 
        flush(); 
        echo $pdf; 
        }
        exit;  
    } else if (strtolower("~" . $extis, "~rtf") !== false) { // thanks to https://stackoverflow.com/questions/12730581/use-this-php-code-to-open-a-pdf-in-a-new-tab
        if (1 == 1) {
        $PDFfilename=str_replace("+"," ",urldecode($_GET['outputname']));
        $pdf = file_get_contents($PDFfilename);

        header('Content-Type: application/rtf');
        header('Cache-Control: public, must-revalidate, max-age=0'); // HTTP/1.1
        header('Pragma: public');
        header('Expires: Sat, 26 Jul 1997 05:00:00 GMT'); // Date in the past
        header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
        header('Content-Length: ' . strlen($pdf));
        header('Content-Disposition: inline; filename="' . basename($PDFfilename) .'";');
        ob_clean(); 
        flush(); 
        echo $pdf; 
        } 
        exit; 
    } else {
    //echo explode(".",str_replace("+"," ",urldecode($_GET['outputname'])))[-1 + sizeof(explode(".",str_replace("+"," ",urldecode($_GET['outputname']))))];
    //exit;
    header('Content-type: application/' . explode(".",str_replace("+"," ",urldecode($_GET['outputname'])))[-1 + sizeof(explode(".",str_replace("+"," ",urldecode($_GET['outputname']))))]); 
    echo file_get_contents(str_replace("+"," ",urldecode($_GET['outputname'])));
    exit;
    }
    }
  } else if (isset($_POST['outputname'])) {  
    $extis=explode(".",str_replace("+"," ",urldecode($_POST['outputname'])))[-1 + sizeof(explode(".",str_replace("+"," ",urldecode($_POST['outputname']))))];
    if (file_exists(str_replace("+"," ",urldecode($_POST['outputname'])))) {
    if (strtolower("~" . $extis, "~htm") !== false) {
    $thecontent=file_get_contents(str_replace("+"," ",urldecode($_POST['outputname'])));
    } else if (strtolower("~" . $extis, "~pdf") !== false) { // thanks to https://stackoverflow.com/questions/12730581/use-this-php-code-to-open-a-pdf-in-a-new-tab
        if (1 == 2) {
        $PDFfilename=str_replace("+"," ",urldecode($_POST['outputname']));
        $pdf = file_get_contents($PDFfilename);

        header('Content-Type: application/pdf');
        header('Cache-Control: public, must-revalidate, max-age=0'); // HTTP/1.1
        header('Pragma: public');
        header('Expires: Sat, 26 Jul 1997 05:00:00 GMT'); // Date in the past
        header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
        header('Content-Length: ' . strlen($pdf));
        header('Content-Disposition: inline; filename="' . basename($PDFfilename) .'";');
        ob_clean(); 
        flush(); 
        echo $pdf; 
        } 
        exit; 
    } else if (strtolower("~" . $extis, "~rtf") !== false) { // thanks to https://stackoverflow.com/questions/12730581/use-this-php-code-to-open-a-pdf-in-a-new-tab
        if (1 == 1) {
        $PDFfilename=str_replace("+"," ",urldecode($_POST['outputname']));
        $pdf = file_get_contents($PDFfilename);

        header('Content-Type: application/rtf');
        header('Cache-Control: public, must-revalidate, max-age=0'); // HTTP/1.1
        header('Pragma: public');
        header('Expires: Sat, 26 Jul 1997 05:00:00 GMT'); // Date in the past
        header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
        header('Content-Length: ' . strlen($pdf));
        header('Content-Disposition: inline; filename="' . basename($PDFfilename) .'";');
        ob_clean(); 
        flush(); 
        echo $pdf; 
        } 
        exit; 
    } else {
    //echo explode(".",str_replace("+"," ",urldecode($_POST['outputname'])))[-1 + sizeof(explode(".",str_replace("+"," ",urldecode($_POST['outputname']))))];
    //exit;
    header('Content-type: application/' . explode(".",str_replace("+"," ",urldecode($_POST['outputname'])))[-1 + sizeof(explode(".",str_replace("+"," ",urldecode($_POST['outputname']))))]); 
    echo file_get_contents(str_replace("+"," ",urldecode($_POST['outputname'])));
    exit;
    }
    }
  }
  echo "<html>
<head>
<script type='text/javascript'>
  var wasv='';
  var firstgo=true;

  function thenreload() {
    location.href=document.URL.split('?')[0].split('#')[0] + '?outputname=' + encodeURIComponent(document.getElementById('outputname').value) + '&dummyconvertthis=' + encodeURIComponent(document.getElementById('thewords').value);
  }
  
  function resultchange() {
    if (document.getElementById('result').value == '') {
    setTimeout(resultchange, 2000);
    } else if (firstgo) {
    firstgo=false;
    setTimeout(resultchange, 6000);
    } else if (window.opener) {
    window.opener.document.getElementById('aurl').value=document.getElementById('result').value;
    window.opener.document.getElementById('doutput').innerHTML='" . $doutput . "'; 
    window.opener.atab(window.opener.document.getElementById('aurl'));
    }
  }
</script>
</head>
<body onload='resultchange();'>
<br><h1>Supervise <span id=sverb>" . $panplus . "textutil</span> Document Conversions</h1>
<h3>RJM Programming - July, 2020</h3>
" . $outfileis . "
<form id=myform onsubmit=\"document.getElementById('myform').style.cursor='progress'; document.body.style.cursor='progress'; setTimeout(thenreload,20000); return true;\" target=dothework action=./macos_textutil_convert.php method=POST>
<table border=20>
<tr><th>Input Document File</th><th>Convert to <input onblur=\"if (this.value.toLowerCase().indexOf('.pdf') != -1) { document.getElementById('myform').target='_blank';   }  \" placeholder='Output document file' type=text name=outputname id=outputname value=''></input></th></tr>
<tr><td style=vertical-align:top;><input placeholder='Input document file' id=thewords name=convertthis  value=''></input></td><td style=vertical-align:top;><input style='width:100%;height:100px;background-color:yellow;' type=submit value='Convert This Document'></input><br><div id=result>" . $thecontent . "</textarea></td></tr>
</table>
</form>
<iframe style='width:100%;height:0px;' frameborder=0 name=dothework id=dothework style=display:none; src=macos_textutil_convert.php></iframe>
<input type=text style='position:absolute;top:-1200px;left:-1200px;'></input>
</body>
</html>";
} 
} else {
 echo "<html><body><p>This PHP web application only works with macOS and its textutil -convert [outextension] [infilename] -output [outfilename] command line Document Conversion functionality, or install pandoc (for Windows).</p></body><html>";
 exit;
}
?>