Better handling of max file upload size according to PHP settings

- Allow unlimited size
- Better parsing of PHP size

Fixes #4896

app/Controller/ProjectFileController.php

@@ -21,7 +21,7 @@ class ProjectFileController extends BaseController
 
         $this->response->html($this->template->render('project_file/create', array(
             'project' => $project,
-            'max_size' => $this->helper->text->phpToBytes(get_upload_max_size()),
+            'max_size' => get_upload_max_size(),
         )));
     }
 

app/Controller/TaskFileController.php

@@ -40,7 +40,7 @@ class TaskFileController extends BaseController
 
         $this->response->html($this->template->render('task_file/create', array(
             'task' => $task,
-            'max_size' => $this->helper->text->phpToBytes(get_upload_max_size()),
+            'max_size' => get_upload_max_size(),
         )));
     }
 

app/Helper/TextHelper.php

@@ -71,29 +71,6 @@ class TextHelper extends Base
         return round(pow(1024, $base - floor($base)), $precision).$suffixes[(int)floor($base)];
     }
 
-    /**
-     * Get the number of bytes from PHP size
-     *
-     * @param  integer  $val        PHP size (example: 2M)
-     * @return integer
-     */
-    public function phpToBytes($val)
-    {
-        $size = (int) substr($val, 0, -1);
-        $last = strtolower(substr($val, -1));
-
-        switch ($last) {
-            case 'g':
-                $size *= 1024;
-            case 'm':
-                $size *= 1024;
-            case 'k':
-                $size *= 1024;
-        }
-
-        return $size;
-    }
-
     /**
      * Return true if needle is contained in the haystack
      *

app/Template/project_file/create.php

@@ -9,7 +9,7 @@
     'labelDropzone'     => t('Drag and drop your files here'),
     'labelOr'           => t('or'),
     'labelChooseFiles'  => t('choose files'),
-    'labelOversize'     => t('The maximum allowed file size is %sB.', $this->text->bytes($max_size)),
+    'labelOversize'     => $max_size > 0 ? t('The maximum allowed file size is %sB.', $this->text->bytes($max_size)) : null,
     'labelSuccess'      => t('All files have been uploaded successfully.'),
     'labelCloseSuccess' => t('Close this window'),
     'labelUploadError'  => t('Unable to upload this file.'),

app/Template/task_file/create.php

@@ -9,7 +9,7 @@
     'labelDropzone'     => t('Drag and drop your files here'),
     'labelOr'           => t('or'),
     'labelChooseFiles'  => t('choose files'),
-    'labelOversize'     => t('The maximum allowed file size is %sB.', $this->text->bytes($max_size)),
+    'labelOversize'     => $max_size > 0 ? t('The maximum allowed file size is %sB.', $this->text->bytes($max_size)) : null,
     'labelSuccess'      => t('All files have been uploaded successfully.'),
     'labelCloseSuccess' => t('Close this window'),
     'labelUploadError'  => t('Unable to upload this file.'),

app/Template/task_import/show.php

@@ -13,7 +13,9 @@
     <?= $this->form->label(t('CSV File'), 'file') ?>
     <?= $this->form->file('file', $errors) ?>
 
+    <?php if ($max_size > 0): ?>
     <p class="form-help"><?= t('Maximum size: ') ?><?= is_integer($max_size) ? $this->text->bytes($max_size) : $max_size ?></p>
+    <?php endif ?>
 
     <?= $this->modal->submitButtons(array('submitLabel' => t('Import'))) ?>
 </form>

app/Template/user_import/show.php

@@ -30,7 +30,9 @@
     <?= $this->form->label(t('CSV File'), 'file') ?>
     <?= $this->form->file('file', $errors) ?>
 
+    <?php if ($max_size > 0): ?>
     <p class="form-help"><?= t('Maximum size: ') ?><?= is_integer($max_size) ? $this->text->bytes($max_size) : $max_size ?></p>
+    <?php endif ?>
 
     <?= $this->modal->submitButtons(array('submitLabel' => t('Import'))) ?>
 </form>

app/functions.php

@@ -212,7 +212,44 @@ function build_app_version($ref, $commit_hash)
  */
 function get_upload_max_size()
 {
-    return min(ini_get('upload_max_filesize'), ini_get('post_max_size'));
+    $upload_max_filesize = convert_php_size_to_bytes(ini_get('upload_max_filesize'));
+    $post_max_size = convert_php_size_to_bytes(ini_get('post_max_size'));
+
+    if ($post_max_size == 0) {
+        return $upload_max_filesize;
+    }
+
+    if ($upload_max_filesize == 0) {
+        return $post_max_size;
+    }
+
+    return min($post_max_size, $upload_max_filesize);
+}
+
+/**
+ * Get the number of bytes from PHP size
+ *
+ * @param  integer  $value PHP size (example: 2M)
+ * @return integer
+ */
+function convert_php_size_to_bytes($value)
+{
+    // Remove the non-unit characters from the size
+    $unit = preg_replace('/[^bkmgtpezy]/i', '', $value);
+
+    // Remove the non-numeric characters from the size
+    $size = preg_replace('/[^0-9\.]/', '', $value);
+
+    switch (strtoupper($unit)) {
+        case 'G':
+            $size *= 1024;
+        case 'M':
+            $size *= 1024;
+        case 'K':
+            $size *= 1024;
+    }
+
+    return $size;
 }
 
 /**