gitea/modules/auth/sso/oauth2.go
Lunny Xiao 6433ba0ec3
Move macaron to chi (#14293)
Use [chi](https://github.com/go-chi/chi) instead of the forked [macaron](https://gitea.com/macaron/macaron). Since macaron and chi have conflicts with session share, this big PR becomes a have-to thing. According my previous idea, we can replace macaron step by step but I'm wrong. :( Below is a list of big changes on this PR.

- [x] Define `context.ResponseWriter` interface with an implementation `context.Response`.
- [x] Use chi instead of macaron, and also a customize `Route` to wrap chi so that the router usage is similar as before.
- [x] Create different routers for `web`, `api`, `internal` and `install` so that the codes will be more clear and no magic .
- [x] Use https://github.com/unrolled/render instead of macaron's internal render
- [x] Use https://github.com/NYTimes/gziphandler instead of https://gitea.com/macaron/gzip
- [x] Use https://gitea.com/go-chi/session which is a modified version of https://gitea.com/macaron/session and removed `nodb` support since it will not be maintained. **BREAK**
- [x] Use https://gitea.com/go-chi/captcha which is a modified version of https://gitea.com/macaron/captcha
- [x] Use https://gitea.com/go-chi/cache which is a modified version of https://gitea.com/macaron/cache
- [x] Use https://gitea.com/go-chi/binding which is a modified version of https://gitea.com/macaron/binding
- [x] Use https://github.com/go-chi/cors instead of https://gitea.com/macaron/cors
- [x] Dropped https://gitea.com/macaron/i18n and make a new one in `code.gitea.io/gitea/modules/translation`
- [x] Move validation form structs from `code.gitea.io/gitea/modules/auth` to `code.gitea.io/gitea/modules/forms` to avoid dependency cycle.
- [x] Removed macaron log service because it's not need any more. **BREAK**
- [x] All form structs have to be get by `web.GetForm(ctx)` in the route function but not as a function parameter on routes definition.
- [x] Move Git HTTP protocol implementation to use routers directly.
- [x] Fix the problem that chi routes don't support trailing slash but macaron did.
- [x] `/api/v1/swagger` now will be redirect to `/api/swagger` but not render directly so that `APIContext` will not create a html render. 

Notices:
- Chi router don't support request with trailing slash
- Integration test `TestUserHeatmap` maybe mysql version related. It's failed on my macOS(mysql 5.7.29 installed via brew) but succeed on CI.

Co-authored-by: 6543 <6543@obermui.de>
2021-01-26 16:36:53 +01:00

143 lines
3.7 KiB
Go

// Copyright 2014 The Gogs Authors. All rights reserved.
// Copyright 2019 The Gitea 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 sso
import (
"net/http"
"strings"
"time"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/timeutil"
)
// Ensure the struct implements the interface.
var (
_ SingleSignOn = &OAuth2{}
)
// CheckOAuthAccessToken returns uid of user from oauth token
func CheckOAuthAccessToken(accessToken string) int64 {
// JWT tokens require a "."
if !strings.Contains(accessToken, ".") {
return 0
}
token, err := models.ParseOAuth2Token(accessToken)
if err != nil {
log.Trace("ParseOAuth2Token: %v", err)
return 0
}
var grant *models.OAuth2Grant
if grant, err = models.GetOAuth2GrantByID(token.GrantID); err != nil || grant == nil {
return 0
}
if token.Type != models.TypeAccessToken {
return 0
}
if token.ExpiresAt < time.Now().Unix() || token.IssuedAt > time.Now().Unix() {
return 0
}
return grant.UserID
}
// OAuth2 implements the SingleSignOn interface and authenticates requests
// (API requests only) by looking for an OAuth token in query parameters or the
// "Authorization" header.
type OAuth2 struct {
}
// Init does nothing as the OAuth2 implementation does not need to allocate any resources
func (o *OAuth2) Init() error {
return nil
}
// Free does nothing as the OAuth2 implementation does not have to release any resources
func (o *OAuth2) Free() error {
return nil
}
// userIDFromToken returns the user id corresponding to the OAuth token.
func (o *OAuth2) userIDFromToken(req *http.Request, store DataStore) int64 {
_ = req.ParseForm()
// Check access token.
tokenSHA := req.Form.Get("token")
if len(tokenSHA) == 0 {
tokenSHA = req.Form.Get("access_token")
}
if len(tokenSHA) == 0 {
// Well, check with header again.
auHead := req.Header.Get("Authorization")
if len(auHead) > 0 {
auths := strings.Fields(auHead)
if len(auths) == 2 && (auths[0] == "token" || strings.ToLower(auths[0]) == "bearer") {
tokenSHA = auths[1]
}
}
}
if len(tokenSHA) == 0 {
return 0
}
// Let's see if token is valid.
if strings.Contains(tokenSHA, ".") {
uid := CheckOAuthAccessToken(tokenSHA)
if uid != 0 {
store.GetData()["IsApiToken"] = true
}
return uid
}
t, err := models.GetAccessTokenBySHA(tokenSHA)
if err != nil {
if !models.IsErrAccessTokenNotExist(err) && !models.IsErrAccessTokenEmpty(err) {
log.Error("GetAccessTokenBySHA: %v", err)
}
return 0
}
t.UpdatedUnix = timeutil.TimeStampNow()
if err = models.UpdateAccessToken(t); err != nil {
log.Error("UpdateAccessToken: %v", err)
}
store.GetData()["IsApiToken"] = true
return t.UID
}
// IsEnabled returns true as this plugin is enabled by default and its not possible
// to disable it from settings.
func (o *OAuth2) IsEnabled() bool {
return true
}
// VerifyAuthData extracts the user ID from the OAuth token in the query parameters
// or the "Authorization" header and returns the corresponding user object for that ID.
// If verification is successful returns an existing user object.
// Returns nil if verification fails.
func (o *OAuth2) VerifyAuthData(req *http.Request, w http.ResponseWriter, store DataStore, sess SessionStore) *models.User {
if !models.HasEngine {
return nil
}
if isInternalPath(req) || !isAPIPath(req) && !isAttachmentDownload(req) {
return nil
}
id := o.userIDFromToken(req, store)
if id <= 0 {
return nil
}
user, err := models.GetUserByID(id)
if err != nil {
if !models.IsErrUserNotExist(err) {
log.Error("GetUserByName: %v", err)
}
return nil
}
return user
}