Add '--command import' command line option

Import a config file from command line as

`openvpn-gui.exe --command import <file-path>`

The command is send to a running instance if any.
Otherwise the GUI extecutable is started and
the import processed.

`openvpn-gui --import <file-path>`

is interpreted as the same command.

Signed-off-by: Selva Nair <selva.nair@gmail.com>

README.rst

@@ -175,6 +175,9 @@ exit
 rescan
      Rescan the config folders for changes
 
+import ``path``
+     Import the config file pointed to by ``path``.
+
 If no running instance of the GUI is found, these commands do nothing
 except for *--command connect config-name* which gets interpreted
 as *--connect config-name*

main.c

@@ -253,6 +253,10 @@ int WINAPI _tWinMain (HINSTANCE hThisInstance,
   {
       PrintDebug(L"Instance 1: Called with --command connect xxx. Treating it as --connect xxx");
   }
+  else if (o.action == WM_OVPN_IMPORT)
+  {
+     ; /* pass -- import is handled after Window initialization */
+  }
   else if (o.action)
   {
       MsgToEventLog(EVENTLOG_ERROR_TYPE, L"Called with --command when no previous instance available");
@@ -274,6 +278,7 @@ int WINAPI _tWinMain (HINSTANCE hThisInstance,
     CheckIServiceStatus(TRUE);
 
   BuildFileList();
+
   if (!VerifyAutoConnections()) {
     exit(1);
   }
@@ -464,11 +469,10 @@ HandleCopyDataMessage(const COPYDATASTRUCT *copy_data)
     {
         CloseApplication(o.hWnd);
     }
-    /* Not yet implemented
+    else if(copy_data->dwData == WM_OVPN_IMPORT && str)
-    else if(copy_data->dwData == WM_OVPN_IMPORT)
     {
+        ImportConfigFile(str);
     }
-    */
     else if (copy_data->dwData == WM_OVPN_NOTIFY)
     {
         ShowTrayBalloon(L"", copy_data->lpData);
@@ -523,6 +527,13 @@ LRESULT CALLBACK WindowProcedure (HWND hwnd, UINT message, WPARAM wParam, LPARAM
       ShowTrayIcon();
       if (o.service_only)
         CheckServiceStatus();	// Check if service is running or not
+
+      /* if '--import' was specified, do it now */
+      if (o.action == WM_OVPN_IMPORT && o.action_arg)
+      {
+        ImportConfigFile(o.action_arg);
+      }
+
       if (!AutoStartConnections()) {
         SendMessage(hwnd, WM_CLOSE, 0, 0);
         break;

misc.c

@@ -37,6 +37,7 @@
 #include "main.h"
 #include "misc.h"
 #include "main.h"
+#include "openvpn_config.h"
 #include "openvpn-gui-res.h"
 
 /*
@@ -641,19 +642,25 @@ ImportConfigFile(const TCHAR* source)
     _wsplitpath(source, NULL, NULL, fileName, ext);
 
     /* check if the source points to the config_dir */
-    if (wcsncmp(source, o.global_config_dir, wcslen(o.global_config_dir)) == 0
+    if (wcsnicmp(source, o.global_config_dir, wcslen(o.global_config_dir)) == 0
-        || wcsncmp(source, o.config_dir, wcslen(o.config_dir)) == 0)
+        || wcsnicmp(source, o.config_dir, wcslen(o.config_dir)) == 0)
     {
         ShowLocalizedMsg(IDS_ERR_IMPORT_SOURCE, source);
         return;
     }
+    /* Ensure the source exists and is readable */
+    if (!CheckFileAccess(source, GENERIC_READ))
+    {
+        ShowLocalizedMsg(IDS_ERR_IMPORT_ACCESS, source);
+        return;
+    }
 
     WCHAR destination[MAX_PATH+1];
     bool no_overwrite = TRUE;
 
     /* profile name must be unique: check whether a config by same name exists */
     connection_t *c = GetConnByName(fileName);
-    if (c && wcsncmp(c->config_dir, o.config_dir, wcslen(o.config_dir)) == 0)
+    if (c && wcsnicmp(c->config_dir, o.config_dir, wcslen(o.config_dir)) == 0)
     {
         /* Ask the user whether to replace the profile or not. */
         if (ShowLocalizedMsgEx(MB_YESNO, NULL, _T(PACKAGE_NAME), IDS_NFO_IMPORT_OVERWRITE, fileName) == IDNO)
@@ -686,4 +693,6 @@ ImportConfigFile(const TCHAR* source)
     }
 
     ShowLocalizedMsg(IDS_NFO_IMPORT_SUCCESS);
+    /* rescan file list after import */
+    BuildFileList();
 }

openvpn-gui-res.h

@@ -337,6 +337,7 @@
 #define IDS_NFO_IMPORT_SUCCESS          1903
 #define IDS_NFO_IMPORT_OVERWRITE        1904
 #define IDS_ERR_IMPORT_SOURCE           1905
+#define IDS_ERR_IMPORT_ACCESS           1906
 
 /* Save password related messages */
 #define IDS_NFO_DELETE_PASS             2001

options.c

@@ -120,6 +120,15 @@ add_option(options_t *options, int i, TCHAR **p)
             options->action_arg = p[1];
         }
     }
+    else if (streq(p[0], L"import") && p[1])
+    {
+        ++i;
+        /* This is interpreted directly or as a command depending
+         * on we are the first instance or not. So, set as an action.
+         */
+        options->action = WM_OVPN_IMPORT;
+        options->action_arg = p[1];
+    }
     else if (streq(p[0], _T("exe_path")) && p[1])
     {
         ++i;
@@ -261,6 +270,12 @@ add_option(options_t *options, int i, TCHAR **p)
             options->action = WM_OVPN_SHOWSTATUS;
             options->action_arg = p[2];
         }
+        else if (streq(p[1], L"import") && p[2])
+        {
+            ++i;
+            options->action = WM_OVPN_IMPORT;
+            options->action_arg = p[2];
+        }
         else if (streq(p[1], _T("silent_connection")))
         {
             ++i;

res/openvpn-gui-res-en.rc

@@ -404,6 +404,7 @@ Supported commands:\n\
     exit                 \t\t: terminate the running GUI instance (may ask for confirmation)\n\
     status cnn             \t: show the status window of config ""cnn"" if connected\n\
     silent_connection [0|1]\t: set the silent_connection flag on (1) or off (0)\n\
+    import path          \t\t: Import the config file pointed to by path\n\
 \t\t\tExample: openvpn-gui.exe --command disconnect myconfig\n\
 \n\
 Options to override registry settings:\n\
@@ -520,6 +521,7 @@ once as Administrator to update the registry."
     IDS_NFO_IMPORT_SUCCESS "File imported successfully."
     IDS_NFO_IMPORT_OVERWRITE "A config named ""%s"" already exists. Do you want to replace it?"
     IDS_ERR_IMPORT_SOURCE "Cannot import file <%s> as it is already in the global or local config directory"
+    IDS_ERR_IMPORT_ACCESS "Cannot import <%ls> as it is missing or not readable"
 
     /* save/delete password */
     IDS_NFO_DELETE_PASS "Press OK to delete saved passwords for config ""%s"""