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Duplicate #15987 to allow access to releases download through BASIC authentication. Fix #16914 Signed-off-by: Andrew Thornton <art27@cantab.net>
141 lines
4.2 KiB
Go
141 lines
4.2 KiB
Go
// Copyright 2014 The Gogs Authors. All rights reserved.
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// Copyright 2019 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package auth
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import (
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"fmt"
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"net/http"
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"reflect"
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"regexp"
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"strings"
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"code.gitea.io/gitea/models"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/setting"
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"code.gitea.io/gitea/modules/web/middleware"
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)
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// authMethods contains the list of authentication plugins in the order they are expected to be
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// executed.
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//
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// The OAuth2 plugin is expected to be executed first, as it must ignore the user id stored
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// in the session (if there is a user id stored in session other plugins might return the user
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// object for that id).
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//
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// The Session plugin is expected to be executed second, in order to skip authentication
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// for users that have already signed in.
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var authMethods = []Method{
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&OAuth2{},
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&Basic{},
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&Session{},
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}
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// The purpose of the following three function variables is to let the linter know that
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// those functions are not dead code and are actually being used
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var (
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_ = handleSignIn
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)
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// Methods returns the instances of all registered methods
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func Methods() []Method {
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return authMethods
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}
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// Register adds the specified instance to the list of available methods
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func Register(method Method) {
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authMethods = append(authMethods, method)
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}
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// Init should be called exactly once when the application starts to allow plugins
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// to allocate necessary resources
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func Init() {
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if setting.Service.EnableReverseProxyAuth {
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Register(&ReverseProxy{})
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}
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specialInit()
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for _, method := range Methods() {
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initializable, ok := method.(Initializable)
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if !ok {
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continue
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}
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err := initializable.Init()
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if err != nil {
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log.Error("Could not initialize '%s' auth method, error: %s", reflect.TypeOf(method).String(), err)
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}
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}
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}
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// Free should be called exactly once when the application is terminating to allow Auth plugins
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// to release necessary resources
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func Free() {
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for _, method := range Methods() {
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freeable, ok := method.(Freeable)
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if !ok {
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continue
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}
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err := freeable.Free()
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if err != nil {
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log.Error("Could not free '%s' auth method, error: %s", reflect.TypeOf(method).String(), err)
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}
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}
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}
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// isAttachmentDownload check if request is a file download (GET) with URL to an attachment
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func isAttachmentDownload(req *http.Request) bool {
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return strings.HasPrefix(req.URL.Path, "/attachments/") && req.Method == "GET"
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}
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var gitRawReleasePathRe = regexp.MustCompile(`^/[a-zA-Z0-9_.-]+/[a-zA-Z0-9_.-]+/(?:(?:git-(?:(?:upload)|(?:receive))-pack$)|(?:info/refs$)|(?:HEAD$)|(?:objects/)|(?:raw/)|(?:releases/download/))`)
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var lfsPathRe = regexp.MustCompile(`^/[a-zA-Z0-9_.-]+/[a-zA-Z0-9_.-]+/info/lfs/`)
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func isGitRawReleaseOrLFSPath(req *http.Request) bool {
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if gitRawReleasePathRe.MatchString(req.URL.Path) {
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return true
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}
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if setting.LFS.StartServer {
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return lfsPathRe.MatchString(req.URL.Path)
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}
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return false
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}
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// handleSignIn clears existing session variables and stores new ones for the specified user object
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func handleSignIn(resp http.ResponseWriter, req *http.Request, sess SessionStore, user *models.User) {
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_ = sess.Delete("openid_verified_uri")
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_ = sess.Delete("openid_signin_remember")
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_ = sess.Delete("openid_determined_email")
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_ = sess.Delete("openid_determined_username")
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_ = sess.Delete("twofaUid")
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_ = sess.Delete("twofaRemember")
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_ = sess.Delete("u2fChallenge")
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_ = sess.Delete("linkAccount")
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err := sess.Set("uid", user.ID)
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if err != nil {
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log.Error(fmt.Sprintf("Error setting session: %v", err))
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}
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err = sess.Set("uname", user.Name)
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if err != nil {
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log.Error(fmt.Sprintf("Error setting session: %v", err))
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}
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// Language setting of the user overwrites the one previously set
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// If the user does not have a locale set, we save the current one.
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if len(user.Language) == 0 {
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lc := middleware.Locale(resp, req)
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user.Language = lc.Language()
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if err := models.UpdateUserCols(user, "language"); err != nil {
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log.Error(fmt.Sprintf("Error updating user language [user: %d, locale: %s]", user.ID, user.Language))
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return
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}
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}
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middleware.SetLocaleCookie(resp, user.Language, 0)
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// Clear whatever CSRF has right now, force to generate a new one
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middleware.DeleteCSRFCookie(resp)
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}
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