From 407cabcbe9d55abe60ab096f3740cd269dd5276e Mon Sep 17 00:00:00 2001
From: plegall <plg@piwigo.org>
Date: Mon, 21 Aug 2023 19:00:01 +0200
Subject: [PATCH] fixes #1966 support for EPS files (copied from Piwigo.com)

---
 admin/include/functions_upload.inc.php | 49 ++++++++++++++++++++++++++
 include/config_default.inc.php         |  3 ++
 2 files changed, 52 insertions(+)

diff --git a/admin/include/functions_upload.inc.php b/admin/include/functions_upload.inc.php
index 5ccb87b52..47d7a54ed 100644
--- a/admin/include/functions_upload.inc.php
+++ b/admin/include/functions_upload.inc.php
@@ -795,6 +795,55 @@ function upload_file_psd($representative_ext, $file_path)
   return get_extension($representative_file_abspath);
 }
 
+add_event_handler('upload_file', 'upload_file_eps');
+function upload_file_eps($representative_ext, $file_path)
+{
+  global $logger, $conf;
+
+  $logger->info(__FUNCTION__.', $file_path = '.$file_path.', $representative_ext = '.$representative_ext);
+
+  if (isset($representative_ext))
+  {
+    return $representative_ext;
+  }
+
+  if (pwg_image::get_library() != 'ext_imagick')
+  {
+    return $representative_ext;
+  }
+
+  if (!in_array(strtolower(get_extension($file_path)), array('eps')))
+  {
+    return $representative_ext;
+  }
+
+  // if the representative is "jpg", the derivatives are ugly. With "png" it's fine.
+  $ext = 'png';
+
+  // move the uploaded file to pwg_representative sub-directory
+  $representative_file_path = original_to_representative($file_path, $ext);
+  prepare_directory(dirname($representative_file_path));
+
+  // convert -density 300 image.eps -resize 2048x2048 image.png
+
+  $exec = $conf['ext_imagick_dir'].'convert';
+  $exec.= ' -density 300';
+  $exec.= ' "'.realpath($file_path).'"';
+  $exec.= ' -resize 2048x2048';
+  $exec.= ' "'.$representative_file_path.'"';
+  $exec.= ' 2>&1';
+  $logger->info(__FUNCTION__.', $exec = '.$exec);
+  @exec($exec, $returnarray);
+
+  // Return the extension (if successful) or false (if failed)
+  if (file_exists($representative_file_path))
+  {
+    $representative_ext = $ext;
+  }
+
+  return $representative_ext;
+}
+
 function prepare_directory($directory)
 {
   if (!is_dir($directory)) {
diff --git a/include/config_default.inc.php b/include/config_default.inc.php
index c573536a3..bfeec0de4 100644
--- a/include/config_default.inc.php
+++ b/include/config_default.inc.php
@@ -43,6 +43,9 @@
 $conf['picture_ext'] = array('jpg','jpeg','png','gif');
 
 // file_ext : file extensions (case sensitive) authorized
+//
+// * if you enable "eps" file extension, make sure you have this file type
+//   authorized in your ImageMagick policy
 $conf['file_ext'] = array_merge(
   $conf['picture_ext'],
   array('tiff', 'tif', 'mpg','zip','avi','mp3','ogg','pdf','svg', 'heic')