Task techjoomla#205 feat : File download functionality from backend

rajnish-dargan · Nov 7, 2019 · ce924fc · ce924fc
1 parent 0854c9d
commit ce924fc
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Showing 2 changed files with 89 additions and 2 deletions.
diff --git a/administrator/controller.php b/administrator/controller.php
@@ -9,7 +9,10 @@
 
 // No direct access
 defined('_JEXEC') or die;
-
+use Joomla\CMS\Table\Table;
+use Joomla\CMS\Factory;
+use Joomla\CMS\MVC\Model\BaseDatabaseModel;
+use Joomla\CMS\Language\Text;
 /**
  * TJ Fields Controller
  *
@@ -38,4 +41,88 @@ public function display($cachable = false, $urlparams = false)
 
 		return $this;
 	}
+
+	/**
+	 * Fuction to get download media file
+	 *
+	 * @return object
+	 */
+	public function getMediaFile()
+	{
+		JLoader::import("/techjoomla/media/storage/local", JPATH_LIBRARIES);
+		$app = Factory::getApplication();
+		$jinput = $app->input;
+		$mediaLocal = TJMediaStorageLocal::getInstance();
+
+		// Here, fpht means file encoded name
+		$encodedFileName = $jinput->get('fpht', '', 'STRING');
+		$decodedFileName = base64_decode($encodedFileName);
+
+		// Subform File field Id for checking autherization for specific field under subform
+		$subformFileFieldId = $jinput->get('subFormFileFieldId', '', 'INT');
+
+		// Get media storage path
+		JLoader::import('components.com_tjfields.models.fields', JPATH_SITE);
+		$fieldsModel     = BaseDatabaseModel::getInstance('Fields', 'TjfieldsModel', array('ignore_request' => true));
+		$data = $fieldsModel->getMediaStoragePath($jinput->get('id', '', 'INT'), $subformFileFieldId);
+
+		if ($data->tjFieldFieldTable->type == "file")
+		{
+			$extraFieldParams = json_decode($data->tjFieldFieldTable->params);
+			$storagePath = $extraFieldParams->uploadpath;
+			$decodedPath = $storagePath . '/' . $decodedFileName;
+		}
+		else
+		{
+			$fieldType = $data->tjFieldFieldTable->type;
+			$decodedPath = JPATH_SITE . '/' . $fieldType . 's/tjmedia/' . str_replace(".", "/", $data->tjFieldFieldTable->client) . '/' . $decodedFileName;
+		}
+
+		if ($data->tjFieldFieldTable->fieldValueId)
+		{
+			$user = Factory::getUser();
+
+			if ($subformFileFieldId)
+			{
+				$canView = $user->authorise('core.field.viewfieldvalue', 'com_tjfields.field.' . $subformFileFieldId);
+			}
+			else
+			{
+				$canView = $user->authorise('core.field.viewfieldvalue', 'com_tjfields.field.' . $data->tjFieldFieldTable->field_id);
+			}
+
+			$canDownload = 0;
+
+			// Allow to view own data
+			if ($data->tjFieldFieldTable->user_id != null && ($user->id == $data->tjFieldFieldTable->user_id))
+			{
+				$canDownload = true;
+			}
+
+			if ($canView || $canDownload)
+			{
+				$down_status = $mediaLocal->downloadMedia($decodedPath, '', '', 0);
+
+				if ($down_status === 2)
+				{
+					$app->enqueueMessage(Text::_('COM_TJFIELDS_FILE_NOT_FOUND'), 'error');
+					$app->redirect($this->returnURL);
+				}
+
+				return;
+			}
+			else
+			{
+				$app->enqueueMessage(Text::_('JERROR_ALERTNOAUTHOR'), 'error');
+				$app->redirect($this->returnURL);
+			}
+		}
+		else
+		{
+			$app->enqueueMessage(Text::_('JERROR_ALERTNOAUTHOR'), 'error');
+			$app->redirect($this->returnURL);
+		}
+
+		jexit();
+	}
 }
diff --git a/site/helpers/tjfields.php b/site/helpers/tjfields.php
@@ -1919,7 +1919,7 @@ public function getMediaUrl($fileName, $extraUrlParamsArray = '')
 			// Here, fpht means file encoded path
 			$encodedFileName = base64_encode($fileName);
 			$basePathLink = 'index.php?option=com_tjfields&task=getMediaFile&fpht=';
-			$mediaURLlink = JUri::root() . substr(JRoute::_($basePathLink . $encodedFileName . $extraUrlParams), strlen(JUri::base(true)) + 1);
+			$mediaURLlink = JUri::base() . substr(JRoute::_($basePathLink . $encodedFileName . $extraUrlParams), strlen(JUri::base(true)) + 1);
 
 			return $mediaURLlink;
 		}