<?PHP
/* Copyright 2005-2023, Lime Technology
 * Copyright 2012-2023, Bergware International.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License version 2,
 * as published by the Free Software Foundation.
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 */
?>
<?
$docroot = $docroot ?? $_SERVER['DOCUMENT_ROOT'] ?: '/usr/local/emhttp';
// add translations
$_SERVER['REQUEST_URI'] = 'tools';
require_once "$docroot/webGui/include/Translations.php";
require_once "$docroot/webGui/include/Helpers.php";

$kernel = shell_exec("uname -r") ;
$kernel = trim($kernel,"\n") ;
$lsmod = shell_exec("lsmod") ;

function getmodules($line) {
    global $arrModules,$lsmod,$kernel ;
    $modprobe = "" ;
    $name = $line ;
    #echo $line ;
    $modname = trim(shell_exec("modinfo  $name > /dev/null"),"\n") ;
    $output=null ;
    exec("modinfo $name",$output,$error) ;
    $parms = array() ;
    foreach($output as $outline) {
    $data = explode(":",$outline) ;
    switch ($data[0])
    {
        case "name":
            $modname = trim($data[1]) ;
            break ;
        case "depends":
            $depends = trim($data[1]) ;
            break ;
        case "filename":
            $filename = trim($data[1]) ;
            break ;
        case "description":
            $desc = trim($data[1]) ;
            break ;            
        case "parm":
            $parms[] = trim(str_replace("parm:","",$outline)) ;
            break ;
        case "file":
            $file = trim(str_replace("file:","",$outline)) ;
            break ;
        case "alias":
        case "author":
        case "firmware":
        case "intree":
        case "vermagic":
        case "retpoline":
        case "import_ns":
        case "license":
            break ;
        default:
            $parms[] = trim($outline) ;
            break ;
    }
}
if (strpos($lsmod, $modname,0)) $state = "Inuse" ; else $state = "Available";
if (is_file("/boot/config/modprobe.d/$modname.conf")) {
    $modprobe = file_get_contents("/boot/config/modprobe.d/$modname.conf") ;
    $state = strpos($modprobe, "blacklist");
    $supportpos = strpos($modprobe, "#Plugin:");
    if ($supportpos !== false) { 
        $support = true ; 
        $supportendpos = strpos($modprobe,"\n",$supportpos) ;
        $pluginfileget = substr($modprobe,$supportpos + 8,$supportendpos ) ;
        $pluginfile = str_replace("\n","",$pluginfileget) ;
        #$modprobe = str_replace($pluginfileget,"",$modprobe) ;
    } else {
        $support = false ;
        $plugin = "" ;
    }
    $modprobe = explode(PHP_EOL,$modprobe) ;
    if($state !== false) {$state = "Disabled" ;} 
    else $state="Custom" ;
    } else if($option == "conf") return ;

if ($filename != "(builtin)") {
$type = pathinfo($filename) ;
$dir =  $type['dirname'] ;
$dir = str_replace("/lib/modules/$kernel/kernel/drivers/", "" ,$dir) ;
$dir = str_replace("/lib/modules/$kernel/kernel/", "" ,$dir) ;
} else {
    $dir = $file ;
    $dir = str_replace("drivers/", "" ,$dir) ;
    if ($state == "Inuse")  $state= "(builtin) - Inuse"; else $state="(builtin)" ;
}
$arrModules[$modname] = [
            'modname' => $modname,
            'dependacy' => $depends, 
            'parms' => $parms,
            'file' =>  $file,
            'modprobe' => $modprobe,
            'plugin' => $pluginfile ,
            'state' => $state,
            'type' => $dir,
            'support' => $support,
            'description' => substr($desc , 0 ,60)  ,
] ;
}

switch ($_POST['table']) {
case 't1pre':
    $option = $_POST['option'] ;
    $select = $_POST['select'] ;
    $builtinmodules = file_get_contents("/lib/modules/$kernel/modules.builtin") ;
    $builtinmodules = explode(PHP_EOL,$builtinmodules) ;
    $procmodules =file_get_contents("/lib/modules/$kernel/modules.order") ;
    $procmodules = explode(PHP_EOL,$procmodules) ; 
    $arrModules = array() ;
  
    foreach($builtinmodules as $bultin)
    {
      if ($bultin == "") continue ;
      getmodules(pathinfo($bultin)["filename"]) ;
    }
  
    foreach($procmodules as $line) {
      if ($line == "") continue ;
      getmodules(pathinfo($line)["filename"]) ;
    } 

  
  echo "<thead><tr><th><b>"._("Module/Driver")."</th><th><b>"._("Description")."</th><th><b>"._("State")."</hd><th><b>"._("Type")."</th><th><b>"._("Modeprobe.d config file")."</th></tr></thead>";
  echo "<tbody>" ;
  if (is_array($arrModules)) ksort($arrModules) ;
  foreach($arrModules as $modname => $module)
  {

    switch ($_POST['option']){
        case "inuse":  
            if ($module['state'] == "Available" || $module['state'] == "(builtin)") continue(2) ;  
            break ;

        case "confonly":
            if ($module['modprobe'] == "" ) continue(2) ;  
            break ;

        case "all":
            break ;
    }
    #echo "<div class='show-disks'><table class='disk_status >" ;
    $status =  _('loading').'...';
    echo "<tr><td><span  onclick=\"textedit('".$modname."')\" ><a><i  title='"._("Edit Modprobe config")."' id=\"icon'.$modname.'\" class='fa fa-edit' ></i></a>" ;
    if ($module['support'] == true) $disabled = "" ; else $disabled = " disabled " ;
    $disabled = " disable " ;
    echo "<span><a><i  title='"._("Support Page")."' id=\"support'.$modname.'\" class='fa fa-phone-square' $disabled></i></a></span> $modname</td>" ;
    echo "<td><span style='color:#267CA8'><i class='fa fa-refresh fa-spin fa-fw'></i>&nbsp;$status</span></td><td><span style='color:#267CA8'><i class='fa fa-refresh fa-spin fa-fw'></i>&nbsp;$status</span></td>" ;
    echo "<td><span style='color:#267CA8'><i class='fa fa-refresh fa-spin fa-fw'></i>&nbsp;$status</span></td>"; 
    $text = "" ;
    if (is_array($module["modprobe"])) {
        $text = implode("\n",$module["modprobe"]) ;
        echo "<td><textarea id=\"text".$modname."\" rows=3 disabled>$text</textarea><span id=\"save$modname\" hidden onclick=\"textsave('".$modname."')\" ><a><i  title='"._("Save Modprobe config")."' class='fa fa-save' ></i></a></span></td></tr>";
    } else echo "<td><textarea id=\"text".$modname."\" rows=1 hidden disabled >$text</textarea><span id=\"save$modname\" hidden onclick=\"textsave('".$modname."')\" ><a><i  title='"._("Save Modprobe config")."' class='fa fa-save' ></i></a></span></td></tr>"; 

  }   
  echo "</tbody>" ;
  break;

  case 't1':
    $option = $_POST['option'] ;
    $select = $_POST['select'] ;
    $builtinmodules = file_get_contents("/lib/modules/$kernel/modules.builtin") ;
    $builtinmodules = explode(PHP_EOL,$builtinmodules) ;
    $procmodules =file_get_contents("/lib/modules/$kernel/modules.order") ;
    $procmodules = explode(PHP_EOL,$procmodules) ; 
    $arrModules = array() ;
  
    foreach($builtinmodules as $bultin)
    {
      if ($bultin == "") continue ;
      getmodules(pathinfo($bultin)["filename"]) ;
    }
  
    foreach($procmodules as $line) {
      if ($line == "") continue ;
      getmodules(pathinfo($line)["filename"]) ;
    } 
  
    echo "<thead><tr><th><b>"._("Module/Driver")."</th><th><b>"._("Description")."</th><th><b>"._("State")."</hd><th><b>"._("Type")."</th><th><b>"._("Modeprobe.d config file")."</th></tr></thead>";
    echo "<tbody>" ;
    if (is_array($arrModules)) ksort($arrModules) ;
    foreach($arrModules as $modname => $module)
    {
  
      switch ($_POST['option']){
          case "inuse":  
              if ($module['state'] == "Available" || $module['state'] == "(builtin)") continue(2) ;  
              break ;
  
          case "confonly":
              if ($module['modprobe'] == "" ) continue(2) ;  
              break ;
  
          case "all":
              break ;
      }
     
      echo "<tr><td><span  onclick=\"textedit('".$modname."')\" ><a><i  title='"._("Edit Modprobe config")."' id=\"icon'.$modname.'\" class='fa fa-edit' ></i></a></span>" ;
   
      if ($module['support'] == true) $disabled = "" ; else $disabled = " disabled " ;
      $disabled = " disable hidden " ;
      echo "<span $disabled ><a $disabled><i  title='"._("Support Page")."' id=\"support'.$modname.'\" class='fa fa-phone-square' $disabled></i></a></span> $modname</td>" ;
      echo "<td>{$module['description']}</td><td id=\"status$modname\">{$module['state']}</td><td>{$module['type']}</td>";

      $text = "" ;
      if (is_array($module["modprobe"])) {
          $text = implode("\n",$module["modprobe"]) ;
          echo "<td><textarea id=\"text".$modname."\" rows=3 disabled>$text</textarea><span id=\"save$modname\" hidden onclick=\"textsave('".$modname."')\" ><a><i  title='"._("Save Modprobe config")."' class='fa fa-save' ></i></a></span></td></tr>";
      } else echo "<td><textarea id=\"text".$modname."\" rows=1 hidden disabled >$text</textarea><span id=\"save$modname\" hidden onclick=\"textsave('".$modname."')\" ><a><i  title='"._("Save Modprobe config")."' class='fa fa-save' ></i></a></span></td></tr>"; 
  
    }   
    echo "</tbody>" ;
    break;
  
case "update":
    $conf = $_POST['conf'] ;
    $module = $_POST['module'] ;
    if ($conf == "") $error = unlink("/boot/config/modprobe.d/$module.conf") ;
    else $error = file_put_contents("/boot/config/modprobe.d/$module.conf",$conf) ;
    getmodules($module) ;
    $return = $arrModules[$module] ;
    if (is_array($return["modprobe"]))$return["modprobe"] = implode("\n",$return["modprobe"]) ;
    if ($error !== false) $return["error"] = false ; else $return["error"] = true ;
    echo json_encode($return) ;
}
?>