Add Forget Principals to Get Tickets dialog

And remove remnants of it from the "more" panel.

Clear the registry key that stores the principal list.
Also clear the autocomplete strings on the active control.

[kaduk@mit.edu: squashed commits and rewrote commit message.]

ticket: 7269 (new)
subject: forget principals functionality
queue: kfw
target_version: 1.10.4
tags: pullup

1 files changed, 23 insertions, 2 deletions

diff --git a/src/windows/leashdll/lshutil.cpp b/src/windows/leashdll/lshutil.cpp
index 2061e9374..93383fa79 100644
--- a/src/windows/leashdll/lshutil.cpp
+++ b/src/windows/leashdll/lshutil.cpp
@@ -162,6 +162,11 @@ public:
 
     virtual ~DynEnumString()
     {
+        RemoveAll();
+    }
+
+    void RemoveAll()
+    {
         for (m_iter = m_aStrings.begin();
              m_iter != m_aStrings.end();
              m_iter++)
@@ -354,6 +359,7 @@ public:
         ,m_bUpperCaseRealm(bUpperCaseRealm)
         ,m_defaultRealm(NULL)
         ,m_ctx(0)
+        ,m_enumString(NULL)
         ,m_acdd(NULL)
         ,m_princStr(NULL)
     {
@@ -373,6 +379,18 @@ public:
             pkrb5_free_context(m_ctx);
     }
 
+    void ClearHistory()
+    {
+        if (m_enumString != NULL)
+            m_enumString->RemoveAll();
+        if (m_acdd != NULL)
+            m_acdd->ResetEnumerator();
+        if (m_princStr != NULL) {
+            delete[] m_princStr;
+            m_princStr = NULL;
+        }
+    }
+
 protected:
     // Convert str to upper case
     // This should be more-or-less _UNICODE-agnostic
@@ -565,10 +583,13 @@ extern "C" void lacAddPrincipal(char *principal)
         RegCloseKey(hKey);
 }
 
-extern "C" void lacReset()
+extern "C" void Leash_pec_clear_history(void *pec)
 {
     // clear princs from registry
-    //RegDeleteKeyEx()
+    RegDeleteKey(HKEY_CURRENT_USER,
+                 LEASH_REGISTRY_PRINCIPALS_KEY_NAME);
+    // ...and from the specified widget
+    static_cast<PrincipalEditControl *>(pec)->ClearHistory();
 }