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Add single sign-on support via SSPI on Windows (#8463)

* Add single sign-on support via SSPI on Windows

* Ensure plugins implement interface

* Ensure plugins implement interface

* Move functions used only by the SSPI auth method to sspi_windows.go

* Field SSPISeparatorReplacement of AuthenticationForm should not be required via binding, as binding will insist the field is non-empty even if another login type is selected

* Fix breaking of oauth authentication on download links. Do not create new session with SSPI authentication on download links.

* Update documentation for the new 'SPNEGO with SSPI' login source

* Mention in documentation that ROOT_URL should contain the FQDN of the server

* Make sure that Contexter is not checking for active login sources when the ORM engine is not initialized (eg. when installing)

* Always initialize and free SSO methods, even if they are not enabled, as a method can be activated while the app is running (from Authentication sources)

* Add option in SSPIConfig for removing of domains from logon names

* Update helper text for StripDomainNames option

* Make sure handleSignIn() is called after a new user object is created by SSPI auth method

* Remove default value from text of form field helper

Co-Authored-By: Lauris BH <lauris@nix.lv>

* Remove default value from text of form field helper

Co-Authored-By: Lauris BH <lauris@nix.lv>

* Remove default value from text of form field helper

Co-Authored-By: Lauris BH <lauris@nix.lv>

* Only make a query to the DB to check if SSPI is enabled on handlers that need that information for templates

* Remove code duplication

* Log errors in ActiveLoginSources

Co-Authored-By: Lauris BH <lauris@nix.lv>

* Revert suffix of randomly generated E-mails for Reverse proxy authentication

Co-Authored-By: Lauris BH <lauris@nix.lv>

* Revert unneeded white-space change in template

Co-Authored-By: Lauris BH <lauris@nix.lv>

* Add copyright comments at the top of new files

* Use loopback name for randomly generated emails

* Add locale tag for the SSPISeparatorReplacement field with proper casing

* Revert casing of SSPISeparatorReplacement field in locale file, moving it up, next to other form fields

* Update docs/content/doc/features/authentication.en-us.md

Co-Authored-By: guillep2k <18600385+guillep2k@users.noreply.github.com>

* Remove Priority() method and define the order in which SSO auth methods should be executed in one place

* Log authenticated username only if it's not empty

* Rephrase helper text for automatic creation of users

* Return error if more than one active SSPI auth source is found

* Change newUser() function to return error, letting caller log/handle the error

* Move isPublicResource, isPublicPage and handleSignIn functions outside SSPI auth method to allow other SSO methods to reuse them if needed

* Refactor initialization of the list containing SSO auth methods

* Validate SSPI settings on POST

* Change SSPI to only perform authentication on its own login page, API paths and download links. Leave Toggle middleware to redirect non authenticated users to login page

* Make 'Default language' in SSPI config empty, unless changed by admin

* Show error if admin tries to add a second authentication source of type SSPI

* Simplify declaration of global variable

* Rebuild gitgraph.js on Linux

* Make sure config values containing only whitespace are not accepted
This commit is contained in:
QuaSoft 2019-11-23 01:33:31 +02:00 committed by Lauris BH
parent eb1b225d9a
commit 7b4d2f7a2a
174 changed files with 6363 additions and 1306 deletions

View file

@ -5,7 +5,9 @@
package admin
import (
"errors"
"fmt"
"regexp"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/modules/auth"
@ -15,6 +17,7 @@ import (
"code.gitea.io/gitea/modules/context"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/util"
"github.com/unknwon/com"
"xorm.io/core"
@ -26,6 +29,11 @@ const (
tplAuthEdit base.TplName = "admin/auth/edit"
)
var (
separatorAntiPattern = regexp.MustCompile(`[^\w-\.]`)
langCodePattern = regexp.MustCompile(`^[a-z]{2}-[A-Z]{2}$`)
)
// Authentications show authentication config page
func Authentications(ctx *context.Context) {
ctx.Data["Title"] = ctx.Tr("admin.authentication")
@ -55,6 +63,7 @@ var (
{models.LoginNames[models.LoginSMTP], models.LoginSMTP},
{models.LoginNames[models.LoginPAM], models.LoginPAM},
{models.LoginNames[models.LoginOAuth2], models.LoginOAuth2},
{models.LoginNames[models.LoginSSPI], models.LoginSSPI},
}
securityProtocols = []dropdownItem{
{models.SecurityProtocolNames[ldap.SecurityProtocolUnencrypted], ldap.SecurityProtocolUnencrypted},
@ -81,6 +90,12 @@ func NewAuthSource(ctx *context.Context) {
ctx.Data["OAuth2Providers"] = models.OAuth2Providers
ctx.Data["OAuth2DefaultCustomURLMappings"] = models.OAuth2DefaultCustomURLMappings
ctx.Data["SSPIAutoCreateUsers"] = true
ctx.Data["SSPIAutoActivateUsers"] = true
ctx.Data["SSPIStripDomainNames"] = true
ctx.Data["SSPISeparatorReplacement"] = "_"
ctx.Data["SSPIDefaultLanguage"] = ""
// only the first as default
for key := range models.OAuth2Providers {
ctx.Data["oauth2_provider"] = key
@ -152,6 +167,30 @@ func parseOAuth2Config(form auth.AuthenticationForm) *models.OAuth2Config {
}
}
func parseSSPIConfig(ctx *context.Context, form auth.AuthenticationForm) (*models.SSPIConfig, error) {
if util.IsEmptyString(form.SSPISeparatorReplacement) {
ctx.Data["Err_SSPISeparatorReplacement"] = true
return nil, errors.New(ctx.Tr("form.SSPISeparatorReplacement") + ctx.Tr("form.require_error"))
}
if separatorAntiPattern.MatchString(form.SSPISeparatorReplacement) {
ctx.Data["Err_SSPISeparatorReplacement"] = true
return nil, errors.New(ctx.Tr("form.SSPISeparatorReplacement") + ctx.Tr("form.alpha_dash_dot_error"))
}
if form.SSPIDefaultLanguage != "" && !langCodePattern.MatchString(form.SSPIDefaultLanguage) {
ctx.Data["Err_SSPIDefaultLanguage"] = true
return nil, errors.New(ctx.Tr("form.lang_select_error"))
}
return &models.SSPIConfig{
AutoCreateUsers: form.SSPIAutoCreateUsers,
AutoActivateUsers: form.SSPIAutoActivateUsers,
StripDomainNames: form.SSPIStripDomainNames,
SeparatorReplacement: form.SSPISeparatorReplacement,
DefaultLanguage: form.SSPIDefaultLanguage,
}, nil
}
// NewAuthSourcePost response for adding an auth source
func NewAuthSourcePost(ctx *context.Context, form auth.AuthenticationForm) {
ctx.Data["Title"] = ctx.Tr("admin.auths.new")
@ -166,6 +205,12 @@ func NewAuthSourcePost(ctx *context.Context, form auth.AuthenticationForm) {
ctx.Data["OAuth2Providers"] = models.OAuth2Providers
ctx.Data["OAuth2DefaultCustomURLMappings"] = models.OAuth2DefaultCustomURLMappings
ctx.Data["SSPIAutoCreateUsers"] = true
ctx.Data["SSPIAutoActivateUsers"] = true
ctx.Data["SSPIStripDomainNames"] = true
ctx.Data["SSPISeparatorReplacement"] = "_"
ctx.Data["SSPIDefaultLanguage"] = ""
hasTLS := false
var config core.Conversion
switch models.LoginType(form.Type) {
@ -181,6 +226,19 @@ func NewAuthSourcePost(ctx *context.Context, form auth.AuthenticationForm) {
}
case models.LoginOAuth2:
config = parseOAuth2Config(form)
case models.LoginSSPI:
var err error
config, err = parseSSPIConfig(ctx, form)
if err != nil {
ctx.RenderWithErr(err.Error(), tplAuthNew, form)
return
}
existing, err := models.LoginSourcesByType(models.LoginSSPI)
if err != nil || len(existing) > 0 {
ctx.Data["Err_Type"] = true
ctx.RenderWithErr(ctx.Tr("admin.auths.login_source_of_type_exist"), tplAuthNew, form)
return
}
default:
ctx.Error(400)
return
@ -274,6 +332,12 @@ func EditAuthSourcePost(ctx *context.Context, form auth.AuthenticationForm) {
}
case models.LoginOAuth2:
config = parseOAuth2Config(form)
case models.LoginSSPI:
config, err = parseSSPIConfig(ctx, form)
if err != nil {
ctx.RenderWithErr(err.Error(), tplAuthEdit, form)
return
}
default:
ctx.Error(400)
return