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tokencookie.go
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/
tokencookie.go
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package basecamp3
import (
"context"
"encoding/base64"
"encoding/json"
"net/http"
"golang.org/x/oauth2"
)
const TokenCookie = "BC3-API-Token"
func getSavedToken(request *http.Request) *oauth2.Token {
c, err := request.Cookie(TokenCookie)
if err != nil {
return nil
}
data, err := base64.StdEncoding.DecodeString(c.Value)
if err != nil {
return nil
}
t := &oauth2.Token{}
err = json.Unmarshal(data, t)
if err != nil {
return nil
}
return t
}
func saveToken(w http.ResponseWriter, t *oauth2.Token) {
if t == nil {
// TODO delete cookie
return
}
data, _ := json.Marshal(t)
tokenstr := base64.StdEncoding.EncodeToString(data)
c := &http.Cookie{
Name: TokenCookie,
Expires: t.Expiry,
Value: tokenstr,
}
http.SetCookie(w, c)
}
type cookieTokenContext struct {
context.Context
request *http.Request
w http.ResponseWriter
}
func ReverseProxyRequestContext(w http.ResponseWriter, r *http.Request) ContextWithTokenPersistence {
return TokenStoredInCookieContext(context.Background(), w, r)
}
func TokenStoredInCookieContext(ctx context.Context, w http.ResponseWriter, r *http.Request) ContextWithTokenPersistence {
return &cookieTokenContext{
Context: ctx,
request: r,
w: w,
}
}
func (c *cookieTokenContext) Token() (*oauth2.Token, error) {
return getSavedToken(c.request), nil
}
func (c *cookieTokenContext) SetToken(t *oauth2.Token) {
saveToken(c.w, t)
}