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|
package statuscake
import (
"bytes"
"encoding/json"
"fmt"
"io"
"io/ioutil"
"net/http"
"net/url"
"strings"
)
const apiBaseURL = "https://app.statuscake.com/API"
type responseBody struct {
io.Reader
}
func (r *responseBody) Close() error {
return nil
}
// Auth wraps the authorisation headers required for each request
type Auth struct {
Username string
Apikey string
}
func (a *Auth) validate() error {
e := make(ValidationError)
if a.Username == "" {
e["Username"] = "is required"
}
if a.Apikey == "" {
e["Apikey"] = "is required"
}
if len(e) > 0 {
return e
}
return nil
}
type httpClient interface {
Do(*http.Request) (*http.Response, error)
}
type apiClient interface {
get(string, url.Values) (*http.Response, error)
delete(string, url.Values) (*http.Response, error)
put(string, url.Values) (*http.Response, error)
}
// Client is the http client that wraps the remote API.
type Client struct {
c httpClient
username string
apiKey string
testsClient Tests
}
// New returns a new Client
func New(auth Auth) (*Client, error) {
if err := auth.validate(); err != nil {
return nil, err
}
return &Client{
c: &http.Client{},
username: auth.Username,
apiKey: auth.Apikey,
}, nil
}
func (c *Client) newRequest(method string, path string, v url.Values, body io.Reader) (*http.Request, error) {
url := fmt.Sprintf("%s%s", apiBaseURL, path)
if v != nil {
url = fmt.Sprintf("%s?%s", url, v.Encode())
}
r, err := http.NewRequest(method, url, body)
if err != nil {
return nil, err
}
r.Header.Set("Username", c.username)
r.Header.Set("API", c.apiKey)
return r, nil
}
func (c *Client) doRequest(r *http.Request) (*http.Response, error) {
resp, err := c.c.Do(r)
if err != nil {
return nil, err
}
defer resp.Body.Close()
if resp.StatusCode < 200 || resp.StatusCode > 299 {
return nil, &httpError{
status: resp.Status,
statusCode: resp.StatusCode,
}
}
var aer autheticationErrorResponse
// We read and save the response body so that if we don't have error messages
// we can set it again for future usage
b, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
err = json.Unmarshal(b, &aer)
if err == nil && aer.ErrNo == 0 && aer.Error != "" {
return nil, &AuthenticationError{
errNo: aer.ErrNo,
message: aer.Error,
}
}
resp.Body = &responseBody{
Reader: bytes.NewReader(b),
}
return resp, nil
}
func (c *Client) get(path string, v url.Values) (*http.Response, error) {
r, err := c.newRequest("GET", path, v, nil)
if err != nil {
return nil, err
}
return c.doRequest(r)
}
func (c *Client) put(path string, v url.Values) (*http.Response, error) {
r, err := c.newRequest("PUT", path, nil, strings.NewReader(v.Encode()))
r.Header.Set("Content-Type", "application/x-www-form-urlencoded")
if err != nil {
return nil, err
}
return c.doRequest(r)
}
func (c *Client) delete(path string, v url.Values) (*http.Response, error) {
r, err := c.newRequest("DELETE", path, v, nil)
if err != nil {
return nil, err
}
return c.doRequest(r)
}
// Tests returns a client that implements the `Tests` API.
func (c *Client) Tests() Tests {
if c.testsClient == nil {
c.testsClient = newTests(c)
}
return c.testsClient
}
|
