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// Copyright 2014 The Gogs Authors. All rights reserved.
// Copyright 2019 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package auth
import (
"fmt"
"net/http"
"regexp"
"strings"
"sync"
user_model "code.gitea.io/gitea/models/user"
"code.gitea.io/gitea/modules/auth/webauthn"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/optional"
"code.gitea.io/gitea/modules/session"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/web/middleware"
gitea_context "code.gitea.io/gitea/services/context"
user_service "code.gitea.io/gitea/services/user"
)
type globalVarsStruct struct {
gitRawOrAttachPathRe *regexp.Regexp
lfsPathRe *regexp.Regexp
archivePathRe *regexp.Regexp
feedPathRe *regexp.Regexp
feedRefPathRe *regexp.Regexp
}
var globalVars = sync.OnceValue(func() *globalVarsStruct {
return &globalVarsStruct{
gitRawOrAttachPathRe: regexp.MustCompile(`^/[-.\w]+/[-.\w]+/(?:(?:git-(?:(?:upload)|(?:receive))-pack$)|(?:info/refs$)|(?:HEAD$)|(?:objects/)|(?:raw/)|(?:releases/download/)|(?:attachments/))`),
lfsPathRe: regexp.MustCompile(`^/[-.\w]+/[-.\w]+/info/lfs/`),
archivePathRe: regexp.MustCompile(`^/[-.\w]+/[-.\w]+/archive/`),
feedPathRe: regexp.MustCompile(`^/[-.\w]+(/[-.\w]+)?\.(rss|atom)$`), // "/owner.rss" or "/owner/repo.atom"
feedRefPathRe: regexp.MustCompile(`^/[-.\w]+/[-.\w]+/(rss|atom)/`), // "/owner/repo/rss/branch/..."
}
})
// Init should be called exactly once when the application starts to allow plugins
// to allocate necessary resources
func Init() {
webauthn.Init()
}
type authPathDetector struct {
req *http.Request
vars *globalVarsStruct
}
func newAuthPathDetector(req *http.Request) *authPathDetector {
return &authPathDetector{req: req, vars: globalVars()}
}
// isAPIPath returns true if the specified URL is an API path
func (a *authPathDetector) isAPIPath() bool {
return strings.HasPrefix(a.req.URL.Path, "/api/")
}
// isAttachmentDownload check if request is a file download (GET) with URL to an attachment
func (a *authPathDetector) isAttachmentDownload() bool {
return strings.HasPrefix(a.req.URL.Path, "/attachments/") && a.req.Method == http.MethodGet
}
func (a *authPathDetector) isFeedRequest(req *http.Request) bool {
if !setting.Other.EnableFeed {
return false
}
if req.Method != http.MethodGet {
return false
}
return a.vars.feedPathRe.MatchString(req.URL.Path) || a.vars.feedRefPathRe.MatchString(req.URL.Path)
}
// isContainerPath checks if the request targets the container endpoint
func (a *authPathDetector) isContainerPath() bool {
return strings.HasPrefix(a.req.URL.Path, "/v2/")
}
func (a *authPathDetector) isGitRawOrAttachPath() bool {
return a.vars.gitRawOrAttachPathRe.MatchString(a.req.URL.Path)
}
func (a *authPathDetector) isGitRawOrAttachOrLFSPath() bool {
if a.isGitRawOrAttachPath() {
return true
}
if setting.LFS.StartServer {
return a.vars.lfsPathRe.MatchString(a.req.URL.Path)
}
return false
}
func (a *authPathDetector) isArchivePath() bool {
return a.vars.archivePathRe.MatchString(a.req.URL.Path)
}
func (a *authPathDetector) isAuthenticatedTokenRequest() bool {
switch a.req.URL.Path {
case "/login/oauth/userinfo", "/login/oauth/introspect":
return true
}
return false
}
// handleSignIn clears existing session variables and stores new ones for the specified user object
func handleSignIn(resp http.ResponseWriter, req *http.Request, sess SessionStore, user *user_model.User) {
// We need to regenerate the session...
newSess, err := session.RegenerateSession(resp, req)
if err != nil {
log.Error(fmt.Sprintf("Error regenerating session: %v", err))
} else {
sess = newSess
}
_ = sess.Delete("openid_verified_uri")
_ = sess.Delete("openid_signin_remember")
_ = sess.Delete("openid_determined_email")
_ = sess.Delete("openid_determined_username")
_ = sess.Delete("twofaUid")
_ = sess.Delete("twofaRemember")
_ = sess.Delete("webauthnAssertion")
_ = sess.Delete("linkAccount")
err = sess.Set("uid", user.ID)
if err != nil {
log.Error(fmt.Sprintf("Error setting session: %v", err))
}
err = sess.Set("uname", user.Name)
if err != nil {
log.Error(fmt.Sprintf("Error setting session: %v", err))
}
// Language setting of the user overwrites the one previously set
// If the user does not have a locale set, we save the current one.
if len(user.Language) == 0 {
lc := middleware.Locale(resp, req)
opts := &user_service.UpdateOptions{
Language: optional.Some(lc.Language()),
}
if err := user_service.UpdateUser(req.Context(), user, opts); err != nil {
log.Error(fmt.Sprintf("Error updating user language [user: %d, locale: %s]", user.ID, user.Language))
return
}
}
middleware.SetLocaleCookie(resp, user.Language, 0)
// force to generate a new CSRF token
if ctx := gitea_context.GetWebContext(req.Context()); ctx != nil {
ctx.Csrf.PrepareForSessionUser(ctx)
}
}
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