Bug 515568: handle_login() doesn't check $@ after eval

Bugzilla/WebService/Constants.pm

@@ -112,6 +112,8 @@ use constant WS_ERROR_CODE => {
     invalid_user_group    => 504,
     user_access_by_id_denied    => 505,
     user_access_by_match_denied => 505,
+    # Fatal errors (must be negative).
+    unknown_method              => -32601,
 };
 
 # These are the fallback defaults for errors not in ERROR_CODE.

Bugzilla/WebService/Server.pm

@@ -18,9 +18,12 @@
 package Bugzilla::WebService::Server;
 use strict;
 
+use Bugzilla::Error;
+
 sub handle_login {
     my ($self, $class, $method, $full_method) = @_;
     eval "require $class";
+    ThrowCodeError('unknown_method', {method => $full_method}) if $@;
     return if ($class->login_exempt($method) 
                and !defined Bugzilla->input_params->{Bugzilla_login});
     Bugzilla->login();

template/en/default/global/code-error.html.tmpl

@@ -483,6 +483,9 @@
        I could not figure out what you wanted to do.
     [% END %]
 
+  [% ELSIF error == "unknown_method" %]
+    The requested method '[% method FILTER html %]' was not found.
+
   [% ELSIF error == "usage_mode_invalid" %]
     '[% invalid_usage_mode FILTER html %]' is not a valid usage mode.