add initial source

requests.go

@@ -0,0 +1,75 @@
+package gowebdav
+
+import (
+	"encoding/xml"
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"strings"
+)
+
+func (c *Client) req(method string, path string, body io.Reader) (req *http.Request, err error) {
+	req, err = http.NewRequest(method, Join(c.root, path), body)
+	if err != nil {
+		return nil, err
+	}
+	for k, vals := range c.headers {
+		for _, v := range vals {
+			req.Header.Add(k, v)
+		}
+	}
+	return req, nil
+}
+
+func (c *Client) Options(path string) (*http.Response, error) {
+	rq, err := c.req("OPTIONS", path, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	rq.Header.Add("Depth", "0")
+
+	return c.c.Do(rq)
+}
+
+func (c *Client) Propfind(path string, self bool, body string, resp interface{}, parse func(resp interface{})) error {
+	rq, err := c.req("PROPFIND", path, strings.NewReader(body))
+	if err != nil {
+		return err
+	}
+
+	if self {
+		rq.Header.Add("Depth", "0")
+	} else {
+		rq.Header.Add("Depth", "1")
+	}
+	rq.Header.Add("Content-Type", "text/xml;charset=UTF-8")
+	rq.Header.Add("Accept", "application/xml,text/xml")
+	rq.Header.Add("Accept-Charset", "utf-8")
+	// TODO add support for 'gzip,deflate;q=0.8,q=0.7'
+	rq.Header.Add("Accept-Encoding", "")
+
+	rs, err := c.c.Do(rq)
+	if err != nil {
+		return err
+	}
+	defer rs.Body.Close()
+
+	if rs.StatusCode != 207 {
+		return errors.New(fmt.Sprintf("%s - %s %s", rs.Status, rq.Method, rq.URL.String()))
+	}
+
+	decoder := xml.NewDecoder(rs.Body)
+	for t, _ := decoder.Token(); t != nil; t, _ = decoder.Token() {
+		switch se := t.(type) {
+		case xml.StartElement:
+			if se.Name.Local == "response" {
+				if e := decoder.DecodeElement(resp, &se); e == nil {
+					parse(resp)
+				}
+			}
+		}
+	}
+	return nil
+}