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message.go
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message.go
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package main
import (
"github.com/asticode/go-astilectron"
"./bootstrap"
"github.com/asticode/go-astilog"
"github.com/pkg/errors"
"net/url"
"net/http"
"strings"
"encoding/json"
)
const (
ClientId = "31dbd4e343e060a20bdf"
ClientSecret = "c0a20c8b3bd912998779ad639077442e6b8b3ba9"
RedirectUri = "http://localhost"
AuthorizedCodeURL = "https://github.com/login/oauth/authorize"
AuthorizedTokenURL = "https://github.com/login/oauth/access_token"
)
// handleMessages handles messages
func handleMessages(a *astilectron.Astilectron, _ *astilectron.Window, m bootstrap.MessageIn) (payload interface{}, err error) {
switch m.Name {
case "login":
requestCodeUrl := url.Values{}
requestCodeUrl.Set("response_type", "code")
requestCodeUrl.Add("client_id", ClientId)
requestCodeUrl.Add("client_secret", ClientSecret)
requestCodeUrl.Add("redirect_uri", RedirectUri)
var ow, _ = a.NewWindow(AuthorizedCodeURL + "?" + requestCodeUrl.Encode(), &astilectron.WindowOptions{
Center: astilectron.PtrBool(false),
Height: astilectron.PtrInt(600),
Width: astilectron.PtrInt(600),
})
ow.On(astilectron.EventNameWindowEventDidGetRedirectRequest, func(e astilectron.Event) (deleteListener bool) {
// when receive a code parameter, then post api to get token and send token to front-end if successly get token
result := &struct {
AccessToken string `json:"access_token"`
TokenType string `json:"token_type,omitempty"`
Scope string `json:"scope,omitempty"`
}{}
client := &http.Client{}
requestTokenUrl := url.Values{}
requestTokenUrl.Set("client_id", ClientId)
requestTokenUrl.Add("client_secret", ClientSecret)
requestTokenUrl.Add("code", getURLParam(e.URLNew, "code"))
requestTokenUrl.Add("redirect_uri", RedirectUri)
req, _ := http.NewRequest("POST", AuthorizedTokenURL,
strings.NewReader(requestTokenUrl.Encode()))
req.Header.Add("Accept", "application/json")
req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
resp, _ := client.Do(req)
json.NewDecoder(resp.Body).Decode(result)
resp.Body.Close()
message := &bootstrap.MessageOut{
Name: e.Name,
Payload: struct {
AccessToken string `json:"access_token"`
TokenType string `json:"token_type,omitempty"`
Scope string `json:"scope,omitempty"`
}{
AccessToken: result.AccessToken,
TokenType: result.TokenType,
Scope: result.Scope,
},
}
w.SendMessage(message, func(m *astilectron.EventMessage) {
// Unmarshal
var s string
m.Unmarshal(&s)
// Process message
astilog.Debugf("received %s", s)
ow.Close()
})
return
})
ow.On(astilectron.EventNameWindowEventWillNavigate, func(e astilectron.Event) (deleteListener bool) {
// as what the above code do
result := &struct {
AccessToken string `json:"access_token"`
TokenType string `json:"token_type,omitempty"`
Scope string `json:"scope,omitempty"`
}{}
client := &http.Client{}
requestTokenUrl := url.Values{}
requestTokenUrl.Set("client_id", ClientId)
requestTokenUrl.Add("client_secret", ClientSecret)
requestTokenUrl.Add("code", getURLParam(e.URL, "code"))
requestTokenUrl.Add("redirect_uri", RedirectUri)
req, _ := http.NewRequest("POST", AuthorizedTokenURL,
strings.NewReader(requestTokenUrl.Encode()))
req.Header.Add("Accept", "application/json")
req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
resp, _ := client.Do(req)
json.NewDecoder(resp.Body).Decode(result)
resp.Body.Close()
message := &bootstrap.MessageOut{
Name: e.Name,
Payload: struct {
AccessToken string `json:"access_token"`
TokenType string `json:"token_type,omitempty"`
Scope string `json:"scope,omitempty"`
}{
AccessToken: result.AccessToken,
TokenType: result.TokenType,
Scope: result.Scope,
},
}
w.SendMessage(message, func(m *astilectron.EventMessage) {
// Unmarshal
var s string
m.Unmarshal(&s)
// Process message
astilog.Debugf("received %s", s)
ow.Close()
})
return
})
ow.Create()
}
return
}
// get url parameter
func getURLParam(targetURL, param string) string {
query, err := url.Parse(targetURL)
if err != nil {
astilog.Error(errors.Wrap(err, "parsing URL failed"))
}
value, err := url.ParseQuery(query.RawQuery)
if err != nil {
astilog.Error(errors.Wrap(err, "parsing URLQuery failed"))
}
return value.Get(param)
}