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71 lines
2 KiB
Go
71 lines
2 KiB
Go
package session
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import (
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"fmt"
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"net/http"
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"time"
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"code.google.com/p/go.net/context"
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"github.com/dgrijalva/jwt-go"
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"github.com/drone/drone/server/datastore"
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"github.com/drone/drone/shared/httputil"
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"github.com/drone/drone/shared/model"
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"github.com/gorilla/securecookie"
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)
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// secret key used to create jwt
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var secret = securecookie.GenerateRandomKey(32)
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// GetUser gets the currently authenticated user for the
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// http.Request. The user details will be stored as either
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// a simple API token or JWT bearer token.
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func GetUser(c context.Context, r *http.Request) *model.User {
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switch {
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case r.Header.Get("Authorization") != "":
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return getUserBearer(c, r)
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case r.FormValue("access_token") != "":
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return getUserToken(c, r)
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default:
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return nil
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}
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}
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// GenerateToken generates a JWT token for the user session
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// that can be appended to the #access_token segment to
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// facilitate client-based OAuth2.
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func GenerateToken(c context.Context, r *http.Request, user *model.User) (string, error) {
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token := jwt.New(jwt.GetSigningMethod("HS256"))
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token.Claims["user_id"] = user.ID
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token.Claims["audience"] = httputil.GetURL(r)
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token.Claims["expires"] = time.Now().UTC().Add(time.Hour * 72).Unix()
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return token.SignedString(secret)
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}
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// getUserToken gets the currently authenticated user for the given
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// auth token.
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func getUserToken(c context.Context, r *http.Request) *model.User {
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var token = r.FormValue("access_token")
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var user, _ = datastore.GetUserToken(c, token)
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return user
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}
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// getUserBearer gets the currently authenticated user for the given
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// bearer token (JWT)
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func getUserBearer(c context.Context, r *http.Request) *model.User {
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var tokenstr = r.Header.Get("Authorization")
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fmt.Sscanf(tokenstr, "Bearer %s", &tokenstr)
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var token, err = jwt.Parse(tokenstr, func(t *jwt.Token) (interface{}, error) {
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return secret, nil
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})
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if err != nil || !token.Valid {
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println("invalid token")
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return nil
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}
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var userid, ok = token.Claims["user_id"].(float64)
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if !ok {
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return nil
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}
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var user, _ = datastore.GetUser(c, int64(userid))
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return user
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}
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