From 38c3b4c58e6c6b86d6241183be1814bac2e037d2 Mon Sep 17 00:00:00 2001
From: Szczepan Zalega <szczepan@nitrokey.com>
Date: Fri, 16 Feb 2018 15:17:47 +0100
Subject: Log current device ID

Allow logger to set global prefix
Used to indicate current device
Store USB path when used to connection as well

Signed-off-by: Szczepan Zalega <szczepan@nitrokey.com>
---
 NitrokeyManager.cc        | 16 +++++++++++++++-
 device.cc                 |  2 +-
 include/NitrokeyManager.h |  5 +++++
 include/log.h             |  5 +++++
 log.cc                    | 17 +++++++++++++++--
 5 files changed, 41 insertions(+), 4 deletions(-)

diff --git a/NitrokeyManager.cc b/NitrokeyManager.cc
index 162ad93..f2518b1 100644
--- a/NitrokeyManager.cc
+++ b/NitrokeyManager.cc
@@ -171,10 +171,14 @@ using nitrokey::misc::strcpyT;
         std::lock_guard<std::mutex> lock(mex_dev_com_manager);
 
         auto position = connected_devices_byID.find(id);
-        if (position == connected_devices_byID.end()) return false;
+        if (position == connected_devices_byID.end()) {
+            LOGD1(std::string("Could not find device ")+id);
+            return false;
+        }
 
         auto d = connected_devices_byID[id];
         device = d;
+        current_device_id = id;
 
         //validate connection
         try{
@@ -185,10 +189,13 @@ using nitrokey::misc::strcpyT;
         }
         catch (const DeviceCommunicationException &){
             d->disconnect();
+            current_device_id = "";
             connected_devices_byID[id] = nullptr;
             connected_devices_byID.erase(position);
             return false;
         }
+        nitrokey::log::Log::setPrefix(id);
+        LOGD1("Device successfully changed");
         return true;
     }
 
@@ -221,6 +228,9 @@ using nitrokey::misc::strcpyT;
         }
 
         device = p; //previous device will be disconnected automatically
+        current_device_id = path;
+        nitrokey::log::Log::setPrefix(path);
+        LOGD1("Device successfully changed");
         return true;
     }
 
@@ -1105,5 +1115,9 @@ using nitrokey::misc::strcpyT;
     return data.data().SD_Card_Size_u8;
   }
 
+    const string NitrokeyManager::get_current_device_id() const {
+        return current_device_id;
+    }
+
 
 }
diff --git a/device.cc b/device.cc
index 9321d2a..da5345b 100644
--- a/device.cc
+++ b/device.cc
@@ -248,7 +248,7 @@ Stick10::Stick10():
 
 
 Stick20::Stick20():
-  Device(0x20a0, 0x4109, DeviceModel::STORAGE, 40ms, 25, 40ms)
+  Device(0x20a0, 0x4109, DeviceModel::STORAGE, 40ms, 55, 40ms)
   {
     setDefaultDelay();
   }
diff --git a/include/NitrokeyManager.h b/include/NitrokeyManager.h
index 7ce432f..5a76616 100644
--- a/include/NitrokeyManager.h
+++ b/include/NitrokeyManager.h
@@ -203,6 +203,11 @@ char * strndup(const char* str, size_t maxlen);
 
         static shared_ptr <NitrokeyManager> _instance;
         std::shared_ptr<Device> device;
+        std::string current_device_id;
+    public:
+        const string get_current_device_id() const;
+
+    private:
         std::unordered_map<std::string, shared_ptr<Device> > connected_devices;
         std::unordered_map<std::string, shared_ptr<Device> > connected_devices_byID;
 
diff --git a/include/log.h b/include/log.h
index 89eda56..b969b81 100644
--- a/include/log.h
+++ b/include/log.h
@@ -86,6 +86,11 @@ namespace nitrokey {
     private:
       LogHandler *mp_loghandler;
       Loglevel m_loglevel;
+      static std::string prefix;
+    public:
+      static void setPrefix(std::string prefix = std::string());
+
+    private:
 
       static Log *mp_instance;
     };
diff --git a/log.cc b/log.cc
index 263ddd7..e66feb0 100644
--- a/log.cc
+++ b/log.cc
@@ -26,6 +26,7 @@
 #include "log.h"
 
 #include <sstream>
+#include <NitrokeyManager.h>
 
 namespace nitrokey {
   namespace log {
@@ -33,6 +34,9 @@ namespace nitrokey {
     Log *Log::mp_instance = nullptr;
     StdlogHandler stdlog_handler;
 
+    std::string Log::prefix = "";
+
+
     std::string LogHandler::loglevel_to_str(Loglevel lvl) {
       switch (lvl) {
         case Loglevel::DEBUG_L1:
@@ -52,8 +56,17 @@ namespace nitrokey {
     }
 
     void Log::operator()(const std::string &logstr, Loglevel lvl) {
-      if (mp_loghandler != nullptr)
-        if ((int) lvl <= (int) m_loglevel) mp_loghandler->print(logstr, lvl);
+      if (mp_loghandler != nullptr){
+        if ((int) lvl <= (int) m_loglevel) mp_loghandler->print(prefix+logstr, lvl);
+      }
+    }
+
+    void Log::setPrefix(const string prefix) {
+      if (!prefix.empty()){
+        Log::prefix = "["+prefix+"]";
+      } else {
+        Log::prefix = "";
+      }
     }
 
     void StdlogHandler::print(const std::string &str, Loglevel lvl) {
-- 
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