Add a /Myth/ChangePassword service to the backend.

Since we now have basic authentication working for the backend
webserver, add a service which we can use to change that password.
Setup page code will be in my next commit.

NOTE: This does modify the binary API version, so make clean, etc..

mythtv/libs/libmythbase/mythversion.h

@@ -12,7 +12,7 @@
 /// Update this whenever the plug-in API changes.
 /// Including changes in the libmythbase, libmyth, libmythtv, libmythav* and
 /// libmythui class methods used by plug-ins.
-#define MYTH_BINARY_VERSION "0.25.20110324-1"
+#define MYTH_BINARY_VERSION "0.25.20110326-1"
 
 /** \brief Increment this whenever the MythTV network protocol changes.
  *

mythtv/libs/libmythservicecontracts/services/mythServices.h

@@ -54,6 +54,7 @@ class SERVICE_PUBLIC MythServices : public Service  //, public QScriptable ???
     Q_CLASSINFO( "PutSetting_Method",            "POST" )
     Q_CLASSINFO( "AddStorageGroupDir_Method",    "POST" )
     Q_CLASSINFO( "RemoveStorageGroupDir_Method", "POST" )
+    Q_CLASSINFO( "ChangePassword_Method",        "POST" )
 
     public:
 
@@ -94,6 +95,9 @@ class SERVICE_PUBLIC MythServices : public Service  //, public QScriptable ???
                                                           const QString   &Key, 
                                                           const QString   &Value   ) = 0;
 
+        virtual bool                ChangePassword      ( const QString   &UserName,
+                                                          const QString   &OldPassword,
+                                                          const QString   &NewPassword ) = 0;
 };
 
 #endif

mythtv/programs/mythbackend/services/myth.cpp

@@ -469,3 +469,48 @@ bool Myth::PutSetting( const QString &sHostName,
     throw ( QString( "Key Required" ));
 }
 
+/////////////////////////////////////////////////////////////////////////////
+//
+/////////////////////////////////////////////////////////////////////////////
+
+bool Myth::ChangePassword( const QString   &sUserName,
+                           const QString   &sOldPassword,
+                           const QString   &sNewPassword )
+{
+    bool bResult = false;
+
+    if (sUserName.isEmpty())
+    {
+        throw ( QString( "UserName not supplied when trying to change "
+                         "password." ) );
+    }
+
+    if (sOldPassword.isEmpty())
+    {
+        throw ( QString( "Old Password not supplied when trying to change "
+                         "password for '%1'." ).arg(sUserName) );
+    }
+
+    if (sNewPassword.isEmpty())
+    {
+        throw ( QString( "New Password not supplied when trying to change "
+                         "password for '%1'." ).arg(sUserName) );
+    }
+
+    if (sOldPassword !=
+        gCoreContext->GetSetting( "HTTP/Protected/Password", ""))
+    {
+        throw ( QString( "Incorrect Old Password supplied when trying to "
+                         "change password for '%1'." ).arg(sUserName) );
+    }
+
+    if (gCoreContext->SaveSettingOnHost( "HTTP/Protected/Password", sNewPassword,
+                                    QString() ) )
+    {
+        gCoreContext->ClearSettingsCache();
+        bResult = true;
+    }
+
+    return bResult;
+}
+

mythtv/programs/mythbackend/services/myth.h

@@ -60,6 +60,10 @@ class Myth : public MythServices
         bool                PutSetting          ( const QString   &HostName, 
                                                   const QString   &Key, 
                                                   const QString   &Value   );
+
+        bool                ChangePassword      ( const QString   &UserName,
+                                                  const QString   &OldPassword,
+                                                  const QString   &NewPassword );
 };
 
 // --------------------------------------------------------------------------