Add an X509_GlobalState pointer to the library state.

Initial implementation of a factory for extension objects

1 files changed, 79 insertions, 0 deletions

diff --git a/src/x509stat.cpp b/src/x509stat.cpp
new file mode 100644
index 000000000..25ca197ca
--- /dev/null
+++ b/src/x509stat.cpp
@@ -0,0 +1,79 @@
+/*************************************************
+* Globally Saved X.509 State                     *
+* (C) 1999-2006 The Botan Project                *
+*************************************************/
+
+#include <botan/x509stat.h>
+#include <botan/x509_ext.h>
+#include <botan/oids.h>
+
+namespace Botan {
+
+/*************************************************
+* Add a new prototype                            *
+*************************************************/
+void X509_GlobalState::add(Extension_Prototype* proto)
+   {
+   if(proto)
+      prototypes.push_back(proto);
+   }
+
+/*************************************************
+* Get an extension object                        *
+*************************************************/
+Certificate_Extension* X509_GlobalState::get_extension(const OID& oid) const
+   {
+   Certificate_Extension* extension = 0;
+   for(u32bit j = 0; j != prototypes.size() && !extension; ++j)
+      extension = prototypes[j]->make(oid);
+   return extension;
+   }
+
+/*************************************************
+* Set up a new global state for X.509            *
+*************************************************/
+X509_GlobalState::X509_GlobalState()
+   {
+#define CREATE_PROTOTYPE(TYPE, NAME)                      \
+   struct TYPE ## _Prototype : public Extension_Prototype \
+      {                                                   \
+      Certificate_Extension* make(const OID& oid)         \
+         {                                                \
+         if(oid == OIDS::lookup(NAME))                    \
+            return new Cert_Extension::TYPE();            \
+         return 0;                                        \
+         }                                                \
+      };                                                  \
+   add(new TYPE ## _Prototype);
+
+#if 0
+   class Basic_Constraints_Prototype : public Extension_Prototype
+      {
+      public:
+         Certificate_Extension* make(const OID& oid)
+            {
+            if(oid == OIDS::lookup("X509v3.BasicConstraints"))
+               return new Cert_Extension::Basic_Constraints();
+            return 0;
+            }
+      };
+
+   add(new Basic_Constraints_Prototype);
+#else
+
+   CREATE_PROTOTYPE(Basic_Constraints, "X509v3.BasicConstraints");
+
+#endif
+   }
+
+/*************************************************
+* Destroy this global state object               *
+*************************************************/
+X509_GlobalState::~X509_GlobalState()
+   {
+   for(u32bit j = 0; j != prototypes.size(); ++j)
+      delete prototypes[j];
+   prototypes.clear();
+   }
+
+}