1 files changed, 36 insertions, 7 deletions
diff --git a/apps/files/js/file-upload.js b/apps/files/js/file-upload.js
index d419cb3a2c0..8ba294e2a7f 100644
--- a/apps/files/js/file-upload.js
+++ b/apps/files/js/file-upload.js
@@ -251,7 +251,26 @@ OC.Upload = {
 		$('#file_upload_start').trigger(new $.Event('resized'));
 	},
 
+	/**
+	 * Returns whether the given file is known to be a received shared file
+	 *
+	 * @param {Object} file file
+	 * @return {bool} true if the file is a shared file
+	 */
+	_isReceivedSharedFile: function(file) {
+		if (!window.FileList) {
+			return false;
+		}
+		var $tr = window.FileList.findFileEl(file.name);
+		if (!$tr.length) {
+			return false;
+		}
+
+		return ($tr.attr('data-mounttype') === 'shared-root' && $tr.attr('data-mime') !== 'httpd/unix-directory');
+	},
+
 	init: function() {
+		var self = this;
 		if ( $('#file_upload_start').exists() ) {
 			var file_upload_param = {
 				dropZone: $('#content'), // restrict dropZone to content div
@@ -341,10 +360,15 @@ OC.Upload = {
 						}
 					}
 
-					// add size
-					selection.totalBytes += file.size;
-					// update size of biggest file
-					selection.biggestFileBytes = Math.max(selection.biggestFileBytes, file.size);
+					// only count if we're not overwriting an existing shared file
+					if (self._isReceivedSharedFile(file)) {
+						file.isReceivedShare = true;
+					} else {
+						// add size
+						selection.totalBytes += file.size;
+						// update size of biggest file
+						selection.biggestFileBytes = Math.max(selection.biggestFileBytes, file.size);
+					}
 
 					// check PHP upload limit against biggest file
 					if (selection.biggestFileBytes > $('#upload_limit').val()) {
@@ -430,11 +454,16 @@ OC.Upload = {
 						fileDirectory = data.files[0].relativePath;
 					}
 
-					addFormData(data.formData, {
+					var params = {
 						requesttoken: oc_requesttoken,
 						dir: data.targetDir || FileList.getCurrentDirectory(),
-						file_directory: fileDirectory
-					});
+						file_directory: fileDirectory,
+					};
+					if (data.files[0].isReceivedShare) {
+						params.isReceivedShare = true;
+					}
+
+					addFormData(data.formData, params);
 				},
 				fail: function(e, data) {
 					OC.Upload.log('fail', e, data);