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// Copyright 2014 The Gogs Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package auth
import (
"strings"
"time"
"github.com/go-macaron/session"
gouuid "github.com/satori/go.uuid"
"gopkg.in/macaron.v1"
log "unknwon.dev/clog/v2"
"gogs.io/gogs/internal/conf"
"gogs.io/gogs/internal/db"
"gogs.io/gogs/internal/tool"
)
func IsAPIPath(url string) bool {
return strings.HasPrefix(url, "/api/")
}
// SignedInID returns the id of signed in user, along with one bool value which indicates whether user uses token
// authentication.
func SignedInID(c *macaron.Context, sess session.Store) (_ int64, isTokenAuth bool) {
if !db.HasEngine {
return 0, false
}
// Check access token.
if IsAPIPath(c.Req.URL.Path) {
tokenSHA := c.Query("token")
if len(tokenSHA) <= 0 {
tokenSHA = c.Query("access_token")
}
if len(tokenSHA) == 0 {
// Well, check with header again.
auHead := c.Req.Header.Get("Authorization")
if len(auHead) > 0 {
auths := strings.Fields(auHead)
if len(auths) == 2 && auths[0] == "token" {
tokenSHA = auths[1]
}
}
}
// Let's see if token is valid.
if len(tokenSHA) > 0 {
t, err := db.AccessTokens.GetBySHA(tokenSHA)
if err != nil {
if !db.IsErrAccessTokenNotExist(err) {
log.Error("GetAccessTokenBySHA: %v", err)
}
return 0, false
}
t.Updated = time.Now()
if err = db.AccessTokens.Save(t); err != nil {
log.Error("UpdateAccessToken: %v", err)
}
return t.UserID, true
}
}
uid := sess.Get("uid")
if uid == nil {
return 0, false
}
if id, ok := uid.(int64); ok {
if _, err := db.GetUserByID(id); err != nil {
if !db.IsErrUserNotExist(err) {
log.Error("Failed to get user by ID: %v", err)
}
return 0, false
}
return id, false
}
return 0, false
}
// SignedInUser returns the user object of signed in user, along with two bool values,
// which indicate whether user uses HTTP Basic Authentication or token authentication respectively.
func SignedInUser(ctx *macaron.Context, sess session.Store) (_ *db.User, isBasicAuth bool, isTokenAuth bool) {
if !db.HasEngine {
return nil, false, false
}
uid, isTokenAuth := SignedInID(ctx, sess)
if uid <= 0 {
if conf.Auth.EnableReverseProxyAuthentication {
webAuthUser := ctx.Req.Header.Get(conf.Auth.ReverseProxyAuthenticationHeader)
if len(webAuthUser) > 0 {
u, err := db.GetUserByName(webAuthUser)
if err != nil {
if !db.IsErrUserNotExist(err) {
log.Error("Failed to get user by name: %v", err)
return nil, false, false
}
// Check if enabled auto-registration.
if conf.Auth.EnableReverseProxyAutoRegistration {
u := &db.User{
Name: webAuthUser,
Email: gouuid.NewV4().String() + "@localhost",
Passwd: webAuthUser,
IsActive: true,
}
if err = db.CreateUser(u); err != nil {
// FIXME: should I create a system notice?
log.Error("Failed to create user: %v", err)
return nil, false, false
} else {
return u, false, false
}
}
}
return u, false, false
}
}
// Check with basic auth.
baHead := ctx.Req.Header.Get("Authorization")
if len(baHead) > 0 {
auths := strings.Fields(baHead)
if len(auths) == 2 && auths[0] == "Basic" {
uname, passwd, _ := tool.BasicAuthDecode(auths[1])
u, err := db.Users.Authenticate(uname, passwd, -1)
if err != nil {
if !db.IsErrUserNotExist(err) {
log.Error("Failed to authenticate user: %v", err)
}
return nil, false, false
}
return u, true, false
}
}
return nil, false, false
}
u, err := db.GetUserByID(uid)
if err != nil {
log.Error("GetUserByID: %v", err)
return nil, false, false
}
return u, false, isTokenAuth
}
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