From b6863ac2e7230394cf8982992674d04c8a025f3d Mon Sep 17 00:00:00 2001
From: Leon Etienne <leon@etiennes.de>
Date: Mon, 18 Apr 2022 14:36:26 +0200
Subject: [PATCH] Server backend now implements a request to get the raw
 download log for a given download-entity

---
 Tubio/HttpServer.cpp | 29 +++++++++++++++++++++++++++++
 Tubio/HttpServer.h   |  1 +
 Tubio/Version.h      |  2 +-
 3 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/Tubio/HttpServer.cpp b/Tubio/HttpServer.cpp
index eee915e..8f50c9b 100644
--- a/Tubio/HttpServer.cpp
+++ b/Tubio/HttpServer.cpp
@@ -102,6 +102,10 @@ void HttpServer::EventHandler(mg_connection* pNc, int ev, void* p)
 				{
 					ProcessAPIRequest(pNc, ev, p, peer_addr);
 				}
+				else if (requestedUri.substr(0, 12) == "/downloadlog")
+				{
+					ServeDownloadLog(pNc, ev, p, requestedUri);
+				}
 				else if (requestedUri.substr(0, 9) == "/download")
 				{
 					ServeDownloadeableResource(pNc, ev, p, requestedUri);
@@ -216,6 +220,31 @@ void HttpServer::ServeDownloadeableResource(mg_connection* pNc, int ev, void* p,
 	return;
 }
 
+void HttpServer::ServeDownloadLog(mg_connection* pNc, int ev, void* p, std::string uri)
+{
+	std::string fileId = uri.substr(13, uri.length() - 13);
+
+	if (Downloader::DownloadManager::DoesTubioIDExist(fileId))
+	{
+		Downloader::DownloadEntry& entry = Downloader::DownloadManager::GetDownloadEntryByTubioID(fileId);
+		
+    std::stringstream ss;
+    std::string logFilename = std::string("./dlcache/dlprogbuf/") + fileId + ".buf";
+
+    ss << "Access-Control-Allow-Origin: *\nContent-Type: text/plain; Cache-Control: must-revalidate, post-check=0, pre-check=0";
+    mg_http_serve_file(pNc, (http_message*)p, logFilename.c_str(), mg_mk_str("text/plain"), mg_mk_str(ss.str().c_str()));
+	}
+	else
+	{
+		Json j;
+    std::stringstream ss;
+		j.CloneFrom(RestResponseTemplates::GetByCode(HTTP_STATUS_CODE::BAD_REQUEST, "Invalid tubio id!"));
+		ServeStringToConnection(pNc, j.Render(), (int)HTTP_STATUS_CODE::BAD_REQUEST);
+	}
+
+	return;
+}
+
 bool HttpServer::IsConnectionAllowed(std::string peer_address, std::string& denialReason)
 {
 	// Localhost is always allowed!
diff --git a/Tubio/HttpServer.h b/Tubio/HttpServer.h
index 0f95a43..7ba650f 100644
--- a/Tubio/HttpServer.h
+++ b/Tubio/HttpServer.h
@@ -24,6 +24,7 @@ namespace Rest
 		bool InitWebServer();
 		static void ProcessAPIRequest(struct mg_connection* pNc, int ev, void* p, std::string peerAddress);
 		static void ServeDownloadeableResource(struct mg_connection* pNc, int ev, void* p, std::string uri);
+		static void ServeDownloadLog(struct mg_connection* pNc, int ev, void* p, std::string uri);
 
 		static void EventHandler(struct mg_connection* pNc, int ev, void* p);
 		static void ServeStringToConnection(struct mg_connection* c, std::string str, int httpStatusCode = 200);
diff --git a/Tubio/Version.h b/Tubio/Version.h
index 147f94f..057a7fc 100644
--- a/Tubio/Version.h
+++ b/Tubio/Version.h
@@ -1,2 +1,2 @@
 #pragma once
-#define TUBIO_SERVER_VERSION (0.65)
+#define TUBIO_SERVER_VERSION (0.66)