palma\FileHandler

Complexity

Total Complexity

29

Size/Duplication

Total Lines	99
Duplicated Lines	0 %

Importance

Changes	2
Bugs	0	Features	0

1 Method

Rating	Name	Duplication	Size	Complexity
D	getFileHandler()	0	68	29

<?php

namespace palma;

// Copyright (C) 2014-2023 Universitätsbibliothek Mannheim
// See file LICENSE for license details.

abstract class FileHandler
{
  // Constants for allowed controls.
  public const UP = 1;
  public const DOWN = 2;
  public const LEFT = 4;
  public const RIGHT = 8;
  public const ZOOMIN = 16;
  public const ZOOMOUT = 32;
  public const HOME = 64;
  public const END = 128;
  public const PRIOR = 256;
  public const NEXT = 512;
  public const DOWNLOAD = 1024;
  public const COUNTERCLOCKWISE = 2048;
  public const CLOCKWISE = 4096;

  // Shortcuts for combinations of controls.
  public const CURSOR = 15; // UP | DOWN | LEFT | RIGHT
  public const ZOOM = 48;   // ZOOMIN | ZOOMOUT
  public const ALL = 2047;

  // up down left right zoomin zoomout home end prior next download

  // protected $FILES = array();
  // protected $UPLOAD_PATH;

  abstract protected function getControls(): void;
  abstract protected function show(string $path): void;

  /** @return array<int,string> */
  public static function getFileHandler(string $file): array
  {

    // Get get directory, name and file extension
    $pathParts = pathinfo($file);
    $ftype = strtolower($pathParts['extension']);
    $fdir = $pathParts['dirname'];
    $fname = $pathParts['filename'];
    $fhandler = "";

    // Define filehandlers
    $pdfHandler = '/usr/bin/zathura';
    $imageHandler = '/usr/bin/feh --scale-down';
    $webHandler = '/usr/bin/x-www-browser';
    foreach (["/usr/lib/palma", "./scripts"] as $dir) {
      $palmaBrowser = $dir . "/palma-browser";
      if (file_exists($palmaBrowser)) {
        $webHandler = $palmaBrowser;
        break;
      }
    }
    $avHandler = '/usr/bin/cvlc --no-audio';
    $officeApp = "writer";

    // $params;
    // echo $ftype;
    if ($ftype === 'pdf') {
      $fhandler = $pdfHandler;
    } elseif ($ftype === 'gif' || $ftype === 'jpg' || $ftype === 'png') {
      $fhandler = $imageHandler;
    } elseif ($ftype === 'html' || $ftype === 'url') {
      $fhandler = $webHandler;
    } elseif (
        $ftype === 'mpg' || $ftype === 'mpeg' || $ftype === 'avi' ||
        $ftype === 'mp3' || $ftype === 'mp4' || $ftype === 'wmv'
    ) {
      $fhandler = $avHandler;
    } else {
      if ($ftype === 'doc' || $ftype === 'docx' || $ftype === 'odt' || $ftype === 'txt') {
        $officeApp = "writer";
      } elseif ($ftype === 'ppt' || $ftype === 'pptx' || $ftype === 'pps' || $ftype === 'ppsx' || $ftype === 'odp') {
        $officeApp = "impress";
      } elseif ($ftype === 'xls' || $ftype === 'xlsx' || $ftype === 'ods') {
        $officeApp = "calc";
      } elseif (shell_exec("/usr/bin/file -b '$file'") === "ASCII text") {
        $officeApp = "writer";
      }
      $convertedFile = convertOffice($file, $officeApp, $fdir, $fname);
      if ($convertedFile) {
        $file = $convertedFile;
        $fhandler = $pdfHandler;
      } else {
        $fhandler = "/usr/bin/libreoffice --'$officeApp' --nologo --norestore -o";
      }
    }

    /*
       alternatively with mime-types

       // $ftype = mime_content_type($this->UPLOAD_PATH.$file);
       // if($ftype=='application/pdf')
       // if($ftype=='image/gif' || $ftype=='image/jpg' || $ftype=='image/png' )
       // if($ftype=='html' || $ftype=='url' || $ftype="text/plain")
       // (...)

     */

    return array($fhandler, $file);
  }
}

function convertOffice(string $inputFile, string $office, string $outputDir, string $fileName): mixed
{
  $cmd = "/usr/bin/libreoffice --headless" .
         " --convert-to pdf:'$office'_pdf_Export" .
         " --outdir '$outputDir'" .
         " '$inputFile' >/dev/null 2>&1";
  shell_exec($cmd);
  $newFile = $outputDir . '/' . $fileName . '.pdf';
  if (file_exists($newFile)) {
    return $newFile;
  } else {
    return false;
  }
}