From 4a1bd84c71b5bad048533b421d54ac04a38c9a2b Mon Sep 17 00:00:00 2001
From: cryptozoidberg <crypto.zoidberg@gmail.com>
Date: Fri, 9 Aug 2019 22:12:32 +0200
Subject: [PATCH] added api for importing contacts from file

---
 contrib/epee/include/file_io_utils.h         | 65 ++++++++++----------
 src/gui/qt-daemon/application/mainwindow.cpp | 26 ++++++++
 src/gui/qt-daemon/application/mainwindow.h   |  1 +
 3 files changed, 61 insertions(+), 31 deletions(-)

diff --git a/contrib/epee/include/file_io_utils.h b/contrib/epee/include/file_io_utils.h
index cb4e0a21..86b9d6e9 100644
--- a/contrib/epee/include/file_io_utils.h
+++ b/contrib/epee/include/file_io_utils.h
@@ -289,6 +289,40 @@ namespace file_io_utils
 		}
 	}
 
+  template<class t_string>
+    bool load_file_to_string(const t_string& path_to_file, std::string& target_str)
+  {
+    try
+    {
+      std::ifstream fstream;
+      //fstream.exceptions(std::ifstream::failbit | std::ifstream::badbit);
+      fstream.open(path_to_file, std::ios_base::binary | std::ios_base::in | std::ios::ate);
+      if (!fstream.good())
+        return false;
+      std::ifstream::pos_type file_size = fstream.tellg();
+
+      if (file_size > 1000000000)
+        return false;//don't get crazy
+      size_t file_size_t = static_cast<size_t>(file_size);
+
+      target_str.resize(file_size_t);
+
+      fstream.seekg(0, std::ios::beg);
+      fstream.read((char*)target_str.data(), target_str.size());
+      if (!fstream.good())
+        return false;
+
+      fstream.close();
+      return true;
+    }
+
+    catch (...)
+    {
+      return false;
+    }
+  }
+
+
 	/*
 	inline
 		bool load_form_handle(HANDLE hfile, std::string& str)
@@ -338,38 +372,7 @@ namespace file_io_utils
 	}
 
 
-	inline
-		bool load_file_to_string(const std::string& path_to_file, std::string& target_str)
-	{
-		try
-		{
-			std::ifstream fstream;
-			//fstream.exceptions(std::ifstream::failbit | std::ifstream::badbit);
-			fstream.open(path_to_file, std::ios_base::binary | std::ios_base::in | std::ios::ate);
-      if (!fstream.good())
-        return false;
-			std::ifstream::pos_type file_size = fstream.tellg();
 
-			if(file_size > 1000000000)
-				return false;//don't go crazy
-			size_t file_size_t = static_cast<size_t>(file_size);
-
-			target_str.resize(file_size_t);
-
-			fstream.seekg (0, std::ios::beg);
-			fstream.read((char*)target_str.data(), target_str.size());
-      if (!fstream.good())
-        return false;
-
-			fstream.close();
-			return true;
-		}
-
-		catch(...)
-		{
-			return false;
-		}
-	}
 
 #ifdef WIN32
   typedef HANDLE native_filesystem_handle;
diff --git a/src/gui/qt-daemon/application/mainwindow.cpp b/src/gui/qt-daemon/application/mainwindow.cpp
index 792261fd..580375cb 100644
--- a/src/gui/qt-daemon/application/mainwindow.cpp
+++ b/src/gui/qt-daemon/application/mainwindow.cpp
@@ -1158,6 +1158,32 @@ QString MainWindow::store_to_file(const QString& path, const QString& buff)
   CATCH_ENTRY2(API_RETURN_CODE_INTERNAL_ERROR);
 }
 
+QString MainWindow::load_from_file(const QString& path)
+{
+  TRY_ENTRY();
+  try {
+    std::string buff;
+    bool r = epee::file_io_utils::load_file_to_string(path.toStdWString(), buff);
+    if (r)
+      return QString::fromStdString(buff);
+    else
+      return QString();
+  }
+  catch (const std::exception& ex)
+  {
+    LOG_ERROR("FILED TO LOAD FROM FILE: " << path.toStdString() << " ERROR:" << ex.what());
+    return QString(API_RETURN_CODE_ACCESS_DENIED) + ": " + ex.what();
+  }
+
+  catch (...)
+  {
+    return API_RETURN_CODE_ACCESS_DENIED;
+  }
+
+
+  CATCH_ENTRY2(API_RETURN_CODE_INTERNAL_ERROR);
+}
+
 QString MainWindow::get_app_data()
 {
   TRY_ENTRY();
diff --git a/src/gui/qt-daemon/application/mainwindow.h b/src/gui/qt-daemon/application/mainwindow.h
index a242c62b..8f55c38f 100644
--- a/src/gui/qt-daemon/application/mainwindow.h
+++ b/src/gui/qt-daemon/application/mainwindow.h
@@ -132,6 +132,7 @@ public:
   QString restore_wallet(const QString& param);
   QString is_pos_allowed();
   QString store_to_file(const QString& path, const QString& buff);
+  QString load_from_file(const QString& path);
   QString is_file_exist(const QString& path);
   QString get_mining_estimate(const QString& obj);
   QString backup_wallet_keys(const QString& obj);