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client.go
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client.go
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package webpowerswitch
import (
"bytes"
"encoding/json"
"errors"
"net/http"
"net/url"
"strconv"
"time"
)
var (
user = "admin"
pass = "incubus1"
)
// Outlet is info about the current state of an outlet on the switch
type Outlet struct {
Name string `json:"name"`
Critical bool `json:"critical"`
TransientState bool `json:"transient_state"`
CycleDelay string `json:"cycle_delay"`
PhysicalState bool `json:"physical_state"`
Locked bool `json:"locked"`
State bool `json:"state"`
}
// Client is a http client for interating with a web power switch
type Client struct {
BaseURL *url.URL
httpClient *http.Client
username, password string
}
// NewClient creates a new client
func NewClient(baseURL, username, password string) (*Client, error) {
base, err := url.Parse(baseURL)
if err != nil {
return nil, err
}
cli := Client{
BaseURL: base,
username: username,
password: password,
httpClient: &http.Client{
Timeout: 30 * time.Second,
},
}
return &cli, nil
}
// GetOutlets returns all outlets on he switch
func (c *Client) GetOutlets() ([]*Outlet, error) {
rel := &url.URL{Path: "restapi/relay/outlets/"}
u := c.BaseURL.ResolveReference(rel)
req, err := http.NewRequest("GET", u.String(), nil)
if err != nil {
return nil, err
}
req.Header.Set("Accept", "application/json")
req.SetBasicAuth(c.username, c.password)
resp, err := c.httpClient.Do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
return nil, errors.New("Request failed, got status " + strconv.Itoa(resp.StatusCode) + " from web power switch")
}
var outlets []*Outlet
err = json.NewDecoder(resp.Body).Decode(&outlets)
return outlets, err
}
// TurnOutletOn returns all outlets on he switch
func (c *Client) TurnOutletOn(outletID string) error {
rel := &url.URL{Path: "restapi/relay/outlets/" + outletID + "/state/"}
u := c.BaseURL.ResolveReference(rel)
req, err := http.NewRequest("PUT", u.String(), bytes.NewBuffer([]byte("value=true")))
if err != nil {
return err
}
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
req.Header.Set("X-CSRF", "x")
req.SetBasicAuth(c.username, c.password)
resp, err := c.httpClient.Do(req)
if err != nil {
return err
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusNoContent {
return errors.New("Request failed, got status " + strconv.Itoa(resp.StatusCode) + " from web power switch")
}
return err
}
// TurnOutletOff turns off an outlet given an id
func (c *Client) TurnOutletOff(outletID string) error {
rel := &url.URL{Path: "restapi/relay/outlets/" + outletID + "/state/"}
u := c.BaseURL.ResolveReference(rel)
req, err := http.NewRequest("PUT", u.String(), bytes.NewBuffer([]byte("value=false")))
if err != nil {
return err
}
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
req.Header.Set("X-CSRF", "x")
req.SetBasicAuth(c.username, c.password)
resp, err := c.httpClient.Do(req)
if err != nil {
return err
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusNoContent {
return errors.New("Request failed, got status " + strconv.Itoa(resp.StatusCode) + " from web power switch")
}
return err
}
func (c *Client) do(req *http.Request, v interface{}) (*http.Response, error) {
resp, err := c.httpClient.Do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
err = json.NewDecoder(resp.Body).Decode(v)
return resp, err
}