forked from x-motemen/blogsync
/
client.go
109 lines (87 loc) · 1.93 KB
/
client.go
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package atom
import (
"bytes"
"encoding/xml"
"fmt"
"io"
"io/ioutil"
"net/http"
)
// Client wrapped *http.Client and some methods for accessing atom feed are added
type Client struct {
*http.Client
}
// GetFeed gets the blog feed
func (c *Client) GetFeed(url string) (*Feed, error) {
resp, err := c.http("GET", url, nil)
if err != nil {
return nil, err
}
return Parse(resp.Body)
}
// GetEntry gets the blog entry
func (c *Client) GetEntry(url string) (*Entry, error) {
resp, err := c.http("GET", url, nil)
if err != nil {
return nil, err
}
return ParseEntry(resp.Body)
}
// PutEntry puts the blog entry
func (c *Client) PutEntry(url string, e *Entry) (*Entry, error) {
body := new(bytes.Buffer)
body.WriteString(xml.Header)
err := xml.NewEncoder(body).Encode(e)
if err != nil {
return nil, err
}
resp, err := c.http("PUT", url, body)
if err != nil {
return nil, err
}
newEntry, err := ParseEntry(resp.Body)
if err != nil {
return nil, err
}
return newEntry, nil
}
// PostEntry posts the blog entry
func (c *Client) PostEntry(url string, e *Entry) (*Entry, error) {
body, err := entryBody(e)
if err != nil {
return nil, err
}
resp, err := c.http("POST", url, body)
if err != nil {
return nil, err
}
newEntry, err := ParseEntry(resp.Body)
if err != nil {
return nil, err
}
return newEntry, nil
}
func entryBody(e *Entry) (*bytes.Buffer, error) {
body := new(bytes.Buffer)
body.WriteString(xml.Header)
err := xml.NewEncoder(body).Encode(e)
if err != nil {
return nil, err
}
return body, nil
}
func (c *Client) http(method, url string, body io.Reader) (*http.Response, error) {
req, err := http.NewRequest(method, url, body)
if err != nil {
return nil, err
}
resp, err := c.Client.Do(req)
if err != nil {
return nil, err
}
if resp.StatusCode >= 300 {
bytes, _ := ioutil.ReadAll(resp.Body)
return resp, fmt.Errorf("got [%s]: %q", resp.Status, string(bytes))
}
return resp, nil
}