1 files changed, 109 insertions, 0 deletions
diff --git a/src/x509/x509find.cpp b/src/x509/x509find.cpp
new file mode 100644
index 000000000..83d02449d
--- /dev/null
+++ b/src/x509/x509find.cpp
@@ -0,0 +1,109 @@
+/*************************************************
+* X.509 Certificate Store Searching Source File  *
+* (C) 1999-2007 Jack Lloyd                       *
+*************************************************/
+
+#include <botan/x509find.h>
+#include <botan/charset.h>
+#include <algorithm>
+
+namespace Botan {
+
+namespace {
+
+/*************************************************
+* Compare based on case-insensive substrings     *
+*************************************************/
+bool substring_match(const std::string& searching_for,
+                     const std::string& found)
+   {
+   if(std::search(found.begin(), found.end(), searching_for.begin(),
+                  searching_for.end(), Charset::caseless_cmp) != found.end())
+      return true;
+   return false;
+   }
+
+/*************************************************
+* Compare based on case-insensive match          *
+*************************************************/
+bool ignore_case(const std::string& searching_for, const std::string& found)
+   {
+   if(searching_for.size() != found.size())
+      return false;
+
+   return std::equal(found.begin(), found.end(),
+                     searching_for.begin(), Charset::caseless_cmp);
+   }
+
+}
+
+/*************************************************
+* Search based on the contents of a DN entry     *
+*************************************************/
+bool DN_Check::match(const X509_Certificate& cert) const
+   {
+   std::vector<std::string> info = cert.subject_info(dn_entry);
+
+   for(u32bit j = 0; j != info.size(); ++j)
+      if(compare(info[j], looking_for))
+         return true;
+   return false;
+   }
+
+/*************************************************
+* DN_Check Constructor                           *
+*************************************************/
+DN_Check::DN_Check(const std::string& dn_entry, const std::string& looking_for,
+                   compare_fn func)
+   {
+   this->dn_entry = dn_entry;
+   this->looking_for = looking_for;
+   compare = func;
+   }
+
+/*************************************************
+* DN_Check Constructor                           *
+*************************************************/
+DN_Check::DN_Check(const std::string& dn_entry, const std::string& looking_for,
+                   Search_Type method)
+   {
+   this->dn_entry = dn_entry;
+   this->looking_for = looking_for;
+
+   if(method == SUBSTRING_MATCHING)
+      compare = &substring_match;
+   else if(method == IGNORE_CASE)
+      compare = &ignore_case;
+   else
+      throw Invalid_Argument("Unknown method argument to DN_Check()");
+   }
+
+/*************************************************
+* Match by issuer and serial number              *
+*************************************************/
+bool IandS_Match::match(const X509_Certificate& cert) const
+   {
+   if(cert.serial_number() != serial)
+      return false;
+   return (cert.issuer_dn() == issuer);
+   }
+
+/*************************************************
+* IandS_Match Constructor                        *
+*************************************************/
+IandS_Match::IandS_Match(const X509_DN& issuer,
+                         const MemoryRegion<byte>& serial)
+   {
+   this->issuer = issuer;
+   this->serial = serial;
+   }
+
+/*************************************************
+* Match by subject key identifier                *
+*************************************************/
+bool SKID_Match::match(const X509_Certificate& cert) const
+   {
+   return (cert.subject_key_id() == skid);
+   }
+
+}