Add file procedures to the API

app/Api/File.php

@@ -0,0 +1,48 @@
+<?php
+
+namespace Api;
+
+/**
+ * File API controller
+ *
+ * @package  api
+ * @author   Frederic Guillot
+ */
+class File extends Base
+{
+    public function getFile($file_id)
+    {
+        return $this->file->getById($file_id);
+    }
+
+    public function getAllFiles($task_id)
+    {
+        return $this->file->getAll($task_id);
+    }
+
+    public function downloadFile($file_id)
+    {
+        $file = $this->file->getById($file_id);
+
+        if (! empty($file)) {
+
+            $filename = FILES_DIR.$file['path'];
+
+            if (file_exists($filename)) {
+                return base64_encode(file_get_contents($filename));
+            }
+        }
+
+        return '';
+    }
+
+    public function createFile($project_id, $task_id, $filename, $is_image, &$blob)
+    {
+        return $this->file->uploadContent($project_id, $task_id, $filename, $is_image, $blob);
+    }
+
+    public function removeFile($file_id)
+    {
+        return $this->file->remove($file_id);
+    }
+}

app/Model/File.php

@@ -96,7 +96,7 @@ class File extends Base
             'path' => $path,
             'is_image' => $is_image ? '1' : '0',
             'size' => $size,
-            'user_id' => $this->userSession->getId(),
+            'user_id' => $this->userSession->getId() ?: 0,
             'date' => time(),
         ));
     }
@@ -319,6 +319,39 @@ class File extends Base
         );
     }
 
+    /**
+     * Handle file upload (base64 encoded content)
+     *
+     * @access public
+     * @param  integer  $project_id   Project id
+     * @param  integer  $task_id      Task id
+     * @param  string   $filename     Filename
+     * @param  bool     $is_image     Is image file?
+     * @param  string   $blob         Base64 encoded image
+     * @return bool
+     */
+    public function uploadContent($project_id, $task_id, $filename, $is_image, &$blob)
+    {
+        $data = base64_decode($blob);
+
+        if (empty($data)) {
+            return false;
+        }
+
+        $destination_filename = $this->generatePath($project_id, $task_id, $filename);
+
+        @mkdir(FILES_DIR.dirname($destination_filename), 0755, true);
+        @file_put_contents(FILES_DIR.$destination_filename, $data);
+
+        return $this->create(
+            $task_id,
+            $filename,
+            $destination_filename,
+            $is_image,
+            strlen($data)
+        );
+    }
+
     /**
      * Generate a jpeg thumbnail from an image (output directly the image)
      *