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/
goauth2client.go
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/
goauth2client.go
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package main
// Use golang.org/x/oauth2 client to test
// Open url in browser:
// http://localhost:14000/app
import (
"fmt"
"net/http"
"github.com/RangelReale/osin"
"github.com/RangelReale/osin/example"
"golang.org/x/oauth2"
)
func main() {
config := osin.NewServerConfig()
// goauth2 checks errors using status codes
config.ErrorStatusCode = 401
server := osin.NewServer(config, example.NewTestStorage())
client := &oauth2.Config{
ClientID: "1234",
ClientSecret: "aabbccdd",
Endpoint: oauth2.Endpoint{
AuthURL: "http://localhost:14000/authorize",
TokenURL: "http://localhost:14000/token",
},
RedirectURL: "http://localhost:14000/appauth/code",
}
// Authorization code endpoint
http.HandleFunc("/authorize", func(w http.ResponseWriter, r *http.Request) {
resp := server.NewResponse()
defer resp.Close()
if ar := server.HandleAuthorizeRequest(resp, r); ar != nil {
if !example.HandleLoginPage(ar, w, r) {
return
}
ar.Authorized = true
server.FinishAuthorizeRequest(resp, r, ar)
}
if resp.IsError && resp.InternalError != nil {
fmt.Printf("ERROR: %s\n", resp.InternalError)
}
osin.OutputJSON(resp, w, r)
})
// Access token endpoint
http.HandleFunc("/token", func(w http.ResponseWriter, r *http.Request) {
resp := server.NewResponse()
defer resp.Close()
if ar := server.HandleAccessRequest(resp, r); ar != nil {
ar.Authorized = true
server.FinishAccessRequest(resp, r, ar)
}
if resp.IsError && resp.InternalError != nil {
fmt.Printf("ERROR: %s\n", resp.InternalError)
}
osin.OutputJSON(resp, w, r)
})
// Information endpoint
http.HandleFunc("/info", func(w http.ResponseWriter, r *http.Request) {
resp := server.NewResponse()
defer resp.Close()
if ir := server.HandleInfoRequest(resp, r); ir != nil {
server.FinishInfoRequest(resp, r, ir)
}
osin.OutputJSON(resp, w, r)
})
// Application home endpoint
http.HandleFunc("/app", func(w http.ResponseWriter, r *http.Request) {
w.Write([]byte("<html><body>"))
//w.Write([]byte(fmt.Sprintf("<a href=\"/authorize?response_type=code&client_id=1234&state=xyz&scope=everything&redirect_uri=%s\">Login</a><br/>", url.QueryEscape("http://localhost:14000/appauth/code"))))
w.Write([]byte(fmt.Sprintf("<a href=\"%s\">Login</a><br/>", client.AuthCodeURL(""))))
w.Write([]byte("</body></html>"))
})
// Application destination - CODE
http.HandleFunc("/appauth/code", func(w http.ResponseWriter, r *http.Request) {
r.ParseForm()
code := r.FormValue("code")
w.Write([]byte("<html><body>"))
w.Write([]byte("APP AUTH - CODE<br/>"))
defer w.Write([]byte("</body></html>"))
if code == "" {
w.Write([]byte("Nothing to do"))
return
}
var jr *oauth2.Token
var err error
// if parse, download and parse json
if r.FormValue("doparse") == "1" {
jr, err = client.Exchange(oauth2.NoContext, code)
if err != nil {
jr = nil
w.Write([]byte(fmt.Sprintf("ERROR: %s<br/>\n", err)))
}
}
// show json access token
if jr != nil {
w.Write([]byte(fmt.Sprintf("ACCESS TOKEN: %s<br/>\n", jr.AccessToken)))
if jr.RefreshToken != "" {
w.Write([]byte(fmt.Sprintf("REFRESH TOKEN: %s<br/>\n", jr.RefreshToken)))
}
}
w.Write([]byte(fmt.Sprintf("FULL RESULT: %+v<br/>\n", jr)))
cururl := *r.URL
curq := cururl.Query()
curq.Add("doparse", "1")
cururl.RawQuery = curq.Encode()
w.Write([]byte(fmt.Sprintf("<a href=\"%s\">Download Token</a><br/>", cururl.String())))
})
http.ListenAndServe(":14000", nil)
}