From ddf8c68d267669290a8dc08a7f7d2ea2f1ece1b4 Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Thu, 5 Oct 2017 15:37:03 +0100
Subject: [PATCH] Added support for multiple --login url username password
 entries to osgviewer

---
 applications/osgviewer/osgviewer.cpp | 12 ++++--------
 include/osgDB/Registry               |  7 +++++++
 2 files changed, 11 insertions(+), 8 deletions(-)

diff --git a/applications/osgviewer/osgviewer.cpp b/applications/osgviewer/osgviewer.cpp
index d790d3873..0d7919687 100644
--- a/applications/osgviewer/osgviewer.cpp
+++ b/applications/osgviewer/osgviewer.cpp
@@ -74,14 +74,10 @@ int main(int argc, char** argv)
     std::string url, username, password;
     while(arguments.read("--login",url, username, password))
     {
-        if (!osgDB::Registry::instance()->getAuthenticationMap())
-        {
-            osgDB::Registry::instance()->setAuthenticationMap(new osgDB::AuthenticationMap);
-            osgDB::Registry::instance()->getAuthenticationMap()->addAuthenticationDetails(
-                url,
-                new osgDB::AuthenticationDetails(username, password)
-            );
-        }
+        osgDB::Registry::instance()->getOrCreateAuthenticationMap()->addAuthenticationDetails(
+            url,
+            new osgDB::AuthenticationDetails(username, password)
+        );
     }
 
     std::string device;
diff --git a/include/osgDB/Registry b/include/osgDB/Registry
index 62d4ac884..87076dc81 100644
--- a/include/osgDB/Registry
+++ b/include/osgDB/Registry
@@ -366,6 +366,13 @@ class OSGDB_EXPORT Registry : public osg::Referenced
         /** Set the password map to be used by plugins when access files from secure locations.*/
         void setAuthenticationMap(AuthenticationMap* authenticationMap) { _authenticationMap = authenticationMap; }
 
+        /** Get the password map to be used by plugins when access files from secure locations. Create a AuthenticationMap if one isn't already assigned.*/
+        AuthenticationMap* getOrCreateAuthenticationMap()
+        {
+            if (!_authenticationMap) _authenticationMap = new AuthenticationMap;
+            return _authenticationMap.get();
+        }
+
         /** Get the password map to be used by plugins when access files from secure locations.*/
         AuthenticationMap* getAuthenticationMap() { return _authenticationMap.get(); }