go-freeipa/request.go

90 lines
2.0 KiB
Go

package freeipa
import (
"bytes"
"encoding/json"
"fmt"
"net/http"
)
// Standard API version definitation.
var apiVersion = "2.237"
// Request format.
type Request struct {
Method string `json:"method"`
Params []interface{} `json:"params"`
}
// Create a new API request.
func NewRequest(method string, args []interface{}, parms map[string]interface{}) *Request {
// Add API version to the parameters.
parms["version"] = apiVersion
// Create the request.
req := &Request{
Method: method,
Params: []interface{}{
args,
parms,
},
}
// Return new request.
return req
}
// Have the client perform the request.
func (c *Client) Do(req *Request) (*Response, error) {
// Send request.
res, err := c.sendRequest(req)
if err != nil {
return nil, err
}
defer res.Body.Close()
// If request is unauthorized, attempt to re-authenticate.
if res.StatusCode == http.StatusUnauthorized {
// Login.
err = c.login()
if err != nil {
return nil, fmt.Errorf("renewed login failed: %s", err)
}
// Re-send the request, now that we're authenticated.
res, err = c.sendRequest(req)
if err != nil {
return nil, err
}
}
// We expect a 200 response, otherwise re-authentication failed or some other error occured.
if res.StatusCode != http.StatusOK {
return nil, fmt.Errorf("unexpected http status code: %d", res.StatusCode)
}
// Parse the response from the body.
return ParseResponse(res.Body)
}
// Encode and send the request to the session.
func (c *Client) sendRequest(request *Request) (*http.Response, error) {
// Encode to JSON.
data, err := json.Marshal(request)
if err != nil {
return nil, err
}
// Make request with JSON data.
req, err := http.NewRequest("POST", c.uriBase+"/session/json", bytes.NewBuffer(data))
if err != nil {
return nil, err
}
req.Header.Set("Content-Type", "application/json")
req.Header.Set("Accept", "application/json")
req.Header.Set("Referer", c.uriBase)
// Perform the request.
return c.client.Do(req)
}