From 9391139d8c337aa6d82a3b8c972275f55dc0d3b7 Mon Sep 17 00:00:00 2001
From: Ben Olive <ben.olive@gatech.edu>
Date: Sun, 27 Dec 2009 23:13:07 -0500
Subject: [PATCH] Added Base Params functionality

Currently only at beginning of args list.
---
 xmlrpc/http.go    | 16 +++++++++++++++-
 xmlrpc/param.go   |  5 +++++
 xmlrpc/request.go |  5 +++--
 3 files changed, 23 insertions(+), 3 deletions(-)

diff --git a/xmlrpc/http.go b/xmlrpc/http.go
index 84d44e4..a979977 100644
--- a/xmlrpc/http.go
+++ b/xmlrpc/http.go
@@ -17,7 +17,21 @@ import (
 // xmlrpc.Fault.
 func (r RemoteMethod) Call(args ...) (ParamValue, os.Error) {
 	body := new(bytes.Buffer)
-	r.SendXML(body, Params(args))
+	if r.BaseParams != nil {
+		p := make([]ParamValue, len(r.BaseParams)+argLength(args))
+		i := 0
+		for _, v := range r.BaseParams {
+			p[i] = v
+			i++
+		}
+		for _, v := range Params(args) {
+			p[i] = v
+			i++
+		}
+		r.SendXML(body, p)
+	} else {
+		r.SendXML(body, Params(args))
+	}
 	resp, err := http.Post(r.Endpoint, "text/xml", body)
 	if err != nil {
 		return nil, err
diff --git a/xmlrpc/param.go b/xmlrpc/param.go
index fe47b83..63544e7 100644
--- a/xmlrpc/param.go
+++ b/xmlrpc/param.go
@@ -20,6 +20,11 @@ func Params(params ...) []ParamValue {
 	return par
 }
 
+func argLength(args ...) int {
+	pStruct := reflect.NewValue(args).(*reflect.StructValue)
+	return pStruct.NumField()
+}
+
 func structParams(v *reflect.StructValue) StructValue {
 	p := make(StructValue, v.NumField())
 	for n := 0; n < v.NumField(); n++ {
diff --git a/xmlrpc/request.go b/xmlrpc/request.go
index 30957a9..e786a25 100644
--- a/xmlrpc/request.go
+++ b/xmlrpc/request.go
@@ -12,8 +12,9 @@ import (
 // The remote method to call. Endpoint is the URL of the endpoint
 // Method is the name of the method to call.
 type RemoteMethod struct {
-	Endpoint string
-	Method   string
+	Endpoint   string
+	Method     string
+	BaseParams []ParamValue
 }
 
 // This methods writes the xml representation of the request