1 files changed, 100 insertions, 0 deletions
diff --git a/src/operator-capability.cc b/src/operator-capability.cc
new file mode 100644
index 0000000..bdead58
--- /dev/null
+++ b/src/operator-capability.cc
@@ -0,0 +1,100 @@
+/** --------------------------------------------------------------------
+ *  @file  bincimapd-capability.cc
+ *  @brief Implementation of the CAPABILITY command
+ *  @author Andreas Aardal Hanssen, Erwin Hoffmann
+ *  @date 2002-2005, 2023
+ *  -----------------------------------------------------------------  **/
+#include <string>
+
+#include "depot.h"
+#include "iodevice.h"
+#include "iofactory.h"
+#include "operators.h"
+#include "recursivedescent.h"
+#include "session.h"
+#include "globals.h"
+
+using namespace ::std;
+using namespace Binc;
+
+//----------------------------------------------------------------------
+CapabilityOperator::CapabilityOperator(void)
+{
+}
+
+//----------------------------------------------------------------------
+CapabilityOperator::~CapabilityOperator(void)
+{
+}
+
+//----------------------------------------------------------------------
+const string CapabilityOperator::getName(void) const
+{
+  return "CAPABILITY";
+}
+
+//----------------------------------------------------------------------
+int CapabilityOperator::getState(void) const
+{
+  return Session::NONAUTHENTICATED 
+       | Session::AUTHENTICATED
+       | Session::SELECTED;
+}
+
+//----------------------------------------------------------------------
+void CapabilityOperator::addCapability(const string &cap)
+{
+  capabilities.push_back(cap);
+}
+
+//----------------------------------------------------------------------
+Operator::ProcessResult CapabilityOperator::process(Depot &depot,
+                                                    Request &command)
+{
+  Session &session = Session::getInstance();
+
+  bincClient << "* CAPABILITY " << IMAP_VERSION ;
+
+  if (session.getState() == Session::NONAUTHENTICATED) {
+	  if (getenv("UCSPITLS"))
+      if (!session.command.ssl) bincClient << " STARTTLS";
+
+   const string authmethods = session.getEnv("BINCIMAP_LOGIN");
+   auto cram = authmethods.find("+CRAM-MD5");
+
+    if (session.command.ssl || session.hasEnv("ALLOW_NONSSL_PLAINTEXT_LOGINS")) {
+      if (cram != string::npos) bincClient << " AUTH=LOGIN AUTH=PLAIN AUTH=CRAM-MD5";
+      else bincClient << " AUTH=LOGIN AUTH=PLAIN";
+    } else
+      bincClient << " LOGINDISABLED";
+  }
+
+  bincClient << " IDLE LITERAL+ NAMESPACE CHILDREN";
+
+  vector<string>::const_iterator i = capabilities.begin();
+  while (i != capabilities.end()) {
+    bincClient << " " << *i;
+    ++i;
+  }
+  bincClient << endl;
+
+  return OK;
+}
+
+//----------------------------------------------------------------------
+Operator::ParseResult CapabilityOperator::parse(Request &c_in) const
+{
+  Session &session = Session::getInstance();
+
+  if (c_in.getUidMode()) return REJECT;
+
+  Operator::ParseResult res;
+  if ((res = expectCRLF()) != ACCEPT) {
+    session.setLastError("Expected CRLF after CAPABILITY");
+    return res;
+  }
+
+  c_in.setName("CAPABILITY");
+
+  return ACCEPT;
+}