From c6e9a7a7838d0a943b5207c7c21f2eef7c2496dd Mon Sep 17 00:00:00 2001
From: Akayeshmantha <akayeshmantha@apache.org>
Date: Wed, 5 Aug 2020 11:28:04 +0200
Subject: [PATCH] Add the functionality to download folder content.

Signed-off-by: Akayeshmantha <akayeshmantha@apache.org>
---
 c/unixFileService.c | 35 +++++++++++++++++++++++++++++++++++
 c/zss.c             |  1 +
 h/unixFileService.h |  1 +
 3 files changed, 37 insertions(+)

diff --git a/c/unixFileService.c b/c/unixFileService.c
index eb834ad29..441c00b7d 100644
--- a/c/unixFileService.c
+++ b/c/unixFileService.c
@@ -981,6 +981,26 @@ static int serveUnixFileChangeOwner (HttpService *service, HttpResponse *respons
   return 0;
 }
 
+static int serveUnixFolderDownloadMode(HttpService *service, HttpResponse *response) {
+  HttpRequest *request = response->request;
+  char *routeFileFrag = stringListPrint(request->parsedFile, 2, 1000, "/", 0);
+
+  if (routeFileFrag == NULL || strlen(routeFileFrag) == 0) {
+    respondWithJsonError(response, "Required absolute path of the resource is not provided", HTTP_STATUS_BAD_REQUEST, "Bad Request");
+    return 0;
+  }
+  char *encodedRouteFolder = stringConcatenate(response->slh, "/", routeFileFrag);
+  char *routeFolderName = cleanURLParamValue(response->slh, encodedRouteFolder);
+
+  if (!strcmp(request->method, methodGET)) {
+    createFileFromUnixDirectoryAndRespond (response, routeFolderName);
+  }
+  else {
+    respondWithJsonError(response, "Method Not Allowed", HTTP_STATUS_METHOD_NOT_FOUND, "Bad Request");
+    return 0;
+  }
+  return 0;
+}
 
 static int serveTableOfContents(HttpService *service, HttpResponse *response) {
   HttpRequest *request = response->request;
@@ -1023,6 +1043,10 @@ static int serveTableOfContents(HttpService *service, HttpResponse *response) {
     jsonAddString(out, "chmod", "/unixfile/chmod/{absPath}");
     jsonEndObject(out);
 
+    jsonStartObject(out, NULL);
+    jsonAddString(out, "folderdownload", "/unixfile/folderdownload/{absPath}");
+    jsonEndObject(out);
+
     jsonEndArray(out);
     jsonEnd(out);
 
@@ -1144,6 +1168,17 @@ void installUnixFileTableOfContentsService(HttpServer *server) {
   registerHttpService(server, httpService);
 }
 
+void installUnixFolderToFileConvertAndDownloadService(HttpServer *server) {
+  HttpService *httpService = makeGeneratedService("UnixFolderDownload",
+      "/unixfile/folderdownload/**");
+  httpService->authType = SERVICE_AUTH_NATIVE_WITH_SESSION_TOKEN;
+  httpService->serviceFunction = serveUnixFolderDownloadMode;
+  httpService->runInSubtask = TRUE;
+  httpService->doImpersonation = TRUE;
+  registerHttpService(server, httpService);
+}
+
+
 
 /*
   This program and the accompanying materials are
diff --git a/c/zss.c b/c/zss.c
index 54abb3806..eeeb138f4 100644
--- a/c/zss.c
+++ b/c/zss.c
@@ -1216,6 +1216,7 @@ int main(int argc, char **argv){
       installUnixFileMetadataService(server);
       installUnixFileChangeOwnerService(server);
       installUnixFileChangeModeService(server);
+      installUnixFolderToFileConvertAndDownloadService(server);
       installUnixFileTableOfContentsService(server); /* This needs to be registered last */
 #ifdef __ZOWE_OS_ZOS
       installVSAMDatasetContentsService(server);
diff --git a/h/unixFileService.h b/h/unixFileService.h
index c0a9b0fb4..64e82d33b 100644
--- a/h/unixFileService.h
+++ b/h/unixFileService.h
@@ -22,6 +22,7 @@ void installUnixFileMetadataService(HttpServer *server);
 void installUnixFileChangeOwnerService(HttpServer *server);
 void installUnixFileTableOfContentsService(HttpServer *server);
 void installUnixFileChangeModeService(HttpServer *server);
+void installUnixFolderToFileConvertAndDownloadService(HttpServer *server);
 
 #endif