mirror of
https://github.com/go-gitea/gitea
synced 2024-12-23 07:57:51 +01:00
bbffcc3aec
There are multiple places where Gitea does not properly escape URLs that it is building and there are multiple places where it builds urls when there is already a simpler function available to use this.
This is an extensive PR attempting to fix these issues.
1. The first commit in this PR looks through all href, src and links in the Gitea codebase and has attempted to catch all the places where there is potentially incomplete escaping.
2. Whilst doing this we will prefer to use functions that create URLs over recreating them by hand.
3. All uses of strings should be directly escaped - even if they are not currently expected to contain escaping characters. The main benefit to doing this will be that we can consider relaxing the constraints on user names and reponames in future.
4. The next commit looks at escaping in the wiki and re-considers the urls that are used there. Using the improved escaping here wiki files containing '/'. (This implementation will currently still place all of the wiki files the root directory of the repo but this would not be difficult to change.)
5. The title generation in feeds is now properly escaped.
6. EscapePound is no longer needed - urls should be PathEscaped / QueryEscaped as necessary but then re-escaped with Escape when creating html with locales Signed-off-by: Andrew Thornton <art27@cantab.net>
Signed-off-by: Andrew Thornton <art27@cantab.net>
430 lines
13 KiB
Go
430 lines
13 KiB
Go
// Copyright 2014 The Gogs 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 admin
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import (
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"errors"
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"fmt"
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"net/http"
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"net/url"
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"regexp"
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"strconv"
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"code.gitea.io/gitea/models/login"
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"code.gitea.io/gitea/modules/auth/pam"
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"code.gitea.io/gitea/modules/base"
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"code.gitea.io/gitea/modules/context"
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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/util"
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"code.gitea.io/gitea/modules/web"
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auth_service "code.gitea.io/gitea/services/auth"
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"code.gitea.io/gitea/services/auth/source/ldap"
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"code.gitea.io/gitea/services/auth/source/oauth2"
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pamService "code.gitea.io/gitea/services/auth/source/pam"
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"code.gitea.io/gitea/services/auth/source/smtp"
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"code.gitea.io/gitea/services/auth/source/sspi"
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"code.gitea.io/gitea/services/forms"
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"xorm.io/xorm/convert"
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)
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const (
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tplAuths base.TplName = "admin/auth/list"
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tplAuthNew base.TplName = "admin/auth/new"
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tplAuthEdit base.TplName = "admin/auth/edit"
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)
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var (
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separatorAntiPattern = regexp.MustCompile(`[^\w-\.]`)
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langCodePattern = regexp.MustCompile(`^[a-z]{2}-[A-Z]{2}$`)
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)
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// Authentications show authentication config page
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func Authentications(ctx *context.Context) {
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ctx.Data["Title"] = ctx.Tr("admin.authentication")
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ctx.Data["PageIsAdmin"] = true
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ctx.Data["PageIsAdminAuthentications"] = true
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var err error
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ctx.Data["Sources"], err = login.Sources()
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if err != nil {
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ctx.ServerError("login.Sources", err)
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return
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}
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ctx.Data["Total"] = login.CountSources()
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ctx.HTML(http.StatusOK, tplAuths)
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}
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type dropdownItem struct {
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Name string
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Type interface{}
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}
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var (
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authSources = func() []dropdownItem {
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items := []dropdownItem{
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{login.LDAP.String(), login.LDAP},
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{login.DLDAP.String(), login.DLDAP},
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{login.SMTP.String(), login.SMTP},
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{login.OAuth2.String(), login.OAuth2},
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{login.SSPI.String(), login.SSPI},
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}
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if pam.Supported {
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items = append(items, dropdownItem{login.Names[login.PAM], login.PAM})
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}
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return items
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}()
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securityProtocols = []dropdownItem{
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{ldap.SecurityProtocolNames[ldap.SecurityProtocolUnencrypted], ldap.SecurityProtocolUnencrypted},
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{ldap.SecurityProtocolNames[ldap.SecurityProtocolLDAPS], ldap.SecurityProtocolLDAPS},
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{ldap.SecurityProtocolNames[ldap.SecurityProtocolStartTLS], ldap.SecurityProtocolStartTLS},
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}
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)
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// NewAuthSource render adding a new auth source page
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func NewAuthSource(ctx *context.Context) {
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ctx.Data["Title"] = ctx.Tr("admin.auths.new")
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ctx.Data["PageIsAdmin"] = true
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ctx.Data["PageIsAdminAuthentications"] = true
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ctx.Data["type"] = login.LDAP
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ctx.Data["CurrentTypeName"] = login.Names[login.LDAP]
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ctx.Data["CurrentSecurityProtocol"] = ldap.SecurityProtocolNames[ldap.SecurityProtocolUnencrypted]
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ctx.Data["smtp_auth"] = "PLAIN"
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ctx.Data["is_active"] = true
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ctx.Data["is_sync_enabled"] = true
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ctx.Data["AuthSources"] = authSources
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ctx.Data["SecurityProtocols"] = securityProtocols
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ctx.Data["SMTPAuths"] = smtp.Authenticators
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oauth2providers := oauth2.GetOAuth2Providers()
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ctx.Data["OAuth2Providers"] = oauth2providers
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ctx.Data["SSPIAutoCreateUsers"] = true
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ctx.Data["SSPIAutoActivateUsers"] = true
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ctx.Data["SSPIStripDomainNames"] = true
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ctx.Data["SSPISeparatorReplacement"] = "_"
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ctx.Data["SSPIDefaultLanguage"] = ""
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// only the first as default
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ctx.Data["oauth2_provider"] = oauth2providers[0]
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ctx.HTML(http.StatusOK, tplAuthNew)
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}
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func parseLDAPConfig(form forms.AuthenticationForm) *ldap.Source {
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var pageSize uint32
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if form.UsePagedSearch {
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pageSize = uint32(form.SearchPageSize)
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}
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return &ldap.Source{
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Name: form.Name,
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Host: form.Host,
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Port: form.Port,
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SecurityProtocol: ldap.SecurityProtocol(form.SecurityProtocol),
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SkipVerify: form.SkipVerify,
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BindDN: form.BindDN,
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UserDN: form.UserDN,
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BindPassword: form.BindPassword,
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UserBase: form.UserBase,
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AttributeUsername: form.AttributeUsername,
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AttributeName: form.AttributeName,
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AttributeSurname: form.AttributeSurname,
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AttributeMail: form.AttributeMail,
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AttributesInBind: form.AttributesInBind,
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AttributeSSHPublicKey: form.AttributeSSHPublicKey,
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AttributeAvatar: form.AttributeAvatar,
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SearchPageSize: pageSize,
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Filter: form.Filter,
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GroupsEnabled: form.GroupsEnabled,
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GroupDN: form.GroupDN,
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GroupFilter: form.GroupFilter,
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GroupMemberUID: form.GroupMemberUID,
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UserUID: form.UserUID,
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AdminFilter: form.AdminFilter,
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RestrictedFilter: form.RestrictedFilter,
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AllowDeactivateAll: form.AllowDeactivateAll,
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Enabled: true,
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SkipLocalTwoFA: form.SkipLocalTwoFA,
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}
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}
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func parseSMTPConfig(form forms.AuthenticationForm) *smtp.Source {
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return &smtp.Source{
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Auth: form.SMTPAuth,
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Host: form.SMTPHost,
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Port: form.SMTPPort,
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AllowedDomains: form.AllowedDomains,
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ForceSMTPS: form.ForceSMTPS,
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SkipVerify: form.SkipVerify,
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HeloHostname: form.HeloHostname,
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DisableHelo: form.DisableHelo,
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SkipLocalTwoFA: form.SkipLocalTwoFA,
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}
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}
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func parseOAuth2Config(form forms.AuthenticationForm) *oauth2.Source {
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var customURLMapping *oauth2.CustomURLMapping
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if form.Oauth2UseCustomURL {
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customURLMapping = &oauth2.CustomURLMapping{
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TokenURL: form.Oauth2TokenURL,
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AuthURL: form.Oauth2AuthURL,
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ProfileURL: form.Oauth2ProfileURL,
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EmailURL: form.Oauth2EmailURL,
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Tenant: form.Oauth2Tenant,
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}
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} else {
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customURLMapping = nil
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}
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return &oauth2.Source{
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Provider: form.Oauth2Provider,
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ClientID: form.Oauth2Key,
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ClientSecret: form.Oauth2Secret,
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OpenIDConnectAutoDiscoveryURL: form.OpenIDConnectAutoDiscoveryURL,
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CustomURLMapping: customURLMapping,
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IconURL: form.Oauth2IconURL,
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SkipLocalTwoFA: form.SkipLocalTwoFA,
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}
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}
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func parseSSPIConfig(ctx *context.Context, form forms.AuthenticationForm) (*sspi.Source, error) {
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if util.IsEmptyString(form.SSPISeparatorReplacement) {
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ctx.Data["Err_SSPISeparatorReplacement"] = true
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return nil, errors.New(ctx.Tr("form.SSPISeparatorReplacement") + ctx.Tr("form.require_error"))
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}
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if separatorAntiPattern.MatchString(form.SSPISeparatorReplacement) {
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ctx.Data["Err_SSPISeparatorReplacement"] = true
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return nil, errors.New(ctx.Tr("form.SSPISeparatorReplacement") + ctx.Tr("form.alpha_dash_dot_error"))
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}
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if form.SSPIDefaultLanguage != "" && !langCodePattern.MatchString(form.SSPIDefaultLanguage) {
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ctx.Data["Err_SSPIDefaultLanguage"] = true
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return nil, errors.New(ctx.Tr("form.lang_select_error"))
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}
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return &sspi.Source{
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AutoCreateUsers: form.SSPIAutoCreateUsers,
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AutoActivateUsers: form.SSPIAutoActivateUsers,
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StripDomainNames: form.SSPIStripDomainNames,
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SeparatorReplacement: form.SSPISeparatorReplacement,
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DefaultLanguage: form.SSPIDefaultLanguage,
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}, nil
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}
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// NewAuthSourcePost response for adding an auth source
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func NewAuthSourcePost(ctx *context.Context) {
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form := *web.GetForm(ctx).(*forms.AuthenticationForm)
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ctx.Data["Title"] = ctx.Tr("admin.auths.new")
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ctx.Data["PageIsAdmin"] = true
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ctx.Data["PageIsAdminAuthentications"] = true
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ctx.Data["CurrentTypeName"] = login.Type(form.Type).String()
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ctx.Data["CurrentSecurityProtocol"] = ldap.SecurityProtocolNames[ldap.SecurityProtocol(form.SecurityProtocol)]
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ctx.Data["AuthSources"] = authSources
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ctx.Data["SecurityProtocols"] = securityProtocols
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ctx.Data["SMTPAuths"] = smtp.Authenticators
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oauth2providers := oauth2.GetOAuth2Providers()
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ctx.Data["OAuth2Providers"] = oauth2providers
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ctx.Data["SSPIAutoCreateUsers"] = true
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ctx.Data["SSPIAutoActivateUsers"] = true
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ctx.Data["SSPIStripDomainNames"] = true
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ctx.Data["SSPISeparatorReplacement"] = "_"
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ctx.Data["SSPIDefaultLanguage"] = ""
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hasTLS := false
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var config convert.Conversion
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switch login.Type(form.Type) {
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case login.LDAP, login.DLDAP:
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config = parseLDAPConfig(form)
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hasTLS = ldap.SecurityProtocol(form.SecurityProtocol) > ldap.SecurityProtocolUnencrypted
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case login.SMTP:
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config = parseSMTPConfig(form)
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hasTLS = true
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case login.PAM:
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config = &pamService.Source{
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ServiceName: form.PAMServiceName,
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EmailDomain: form.PAMEmailDomain,
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SkipLocalTwoFA: form.SkipLocalTwoFA,
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}
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case login.OAuth2:
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config = parseOAuth2Config(form)
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case login.SSPI:
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var err error
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config, err = parseSSPIConfig(ctx, form)
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if err != nil {
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ctx.RenderWithErr(err.Error(), tplAuthNew, form)
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return
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}
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existing, err := login.SourcesByType(login.SSPI)
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if err != nil || len(existing) > 0 {
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ctx.Data["Err_Type"] = true
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ctx.RenderWithErr(ctx.Tr("admin.auths.login_source_of_type_exist"), tplAuthNew, form)
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return
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}
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default:
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ctx.Error(http.StatusBadRequest)
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return
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}
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ctx.Data["HasTLS"] = hasTLS
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if ctx.HasError() {
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ctx.HTML(http.StatusOK, tplAuthNew)
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return
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}
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if err := login.CreateSource(&login.Source{
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Type: login.Type(form.Type),
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Name: form.Name,
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IsActive: form.IsActive,
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IsSyncEnabled: form.IsSyncEnabled,
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Cfg: config,
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}); err != nil {
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if login.IsErrSourceAlreadyExist(err) {
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ctx.Data["Err_Name"] = true
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ctx.RenderWithErr(ctx.Tr("admin.auths.login_source_exist", err.(login.ErrSourceAlreadyExist).Name), tplAuthNew, form)
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} else {
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ctx.ServerError("login.CreateSource", err)
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}
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return
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}
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log.Trace("Authentication created by admin(%s): %s", ctx.User.Name, form.Name)
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ctx.Flash.Success(ctx.Tr("admin.auths.new_success", form.Name))
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ctx.Redirect(setting.AppSubURL + "/admin/auths")
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}
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// EditAuthSource render editing auth source page
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func EditAuthSource(ctx *context.Context) {
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ctx.Data["Title"] = ctx.Tr("admin.auths.edit")
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ctx.Data["PageIsAdmin"] = true
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ctx.Data["PageIsAdminAuthentications"] = true
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ctx.Data["SecurityProtocols"] = securityProtocols
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ctx.Data["SMTPAuths"] = smtp.Authenticators
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oauth2providers := oauth2.GetOAuth2Providers()
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ctx.Data["OAuth2Providers"] = oauth2providers
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source, err := login.GetSourceByID(ctx.ParamsInt64(":authid"))
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if err != nil {
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ctx.ServerError("login.GetSourceByID", err)
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return
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}
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ctx.Data["Source"] = source
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ctx.Data["HasTLS"] = source.HasTLS()
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if source.IsOAuth2() {
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type Named interface {
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Name() string
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}
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for _, provider := range oauth2providers {
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if provider.Name() == source.Cfg.(Named).Name() {
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ctx.Data["CurrentOAuth2Provider"] = provider
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break
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}
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}
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}
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ctx.HTML(http.StatusOK, tplAuthEdit)
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}
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// EditAuthSourcePost response for editing auth source
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func EditAuthSourcePost(ctx *context.Context) {
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form := *web.GetForm(ctx).(*forms.AuthenticationForm)
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ctx.Data["Title"] = ctx.Tr("admin.auths.edit")
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ctx.Data["PageIsAdmin"] = true
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ctx.Data["PageIsAdminAuthentications"] = true
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ctx.Data["SMTPAuths"] = smtp.Authenticators
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oauth2providers := oauth2.GetOAuth2Providers()
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ctx.Data["OAuth2Providers"] = oauth2providers
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source, err := login.GetSourceByID(ctx.ParamsInt64(":authid"))
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if err != nil {
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ctx.ServerError("login.GetSourceByID", err)
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return
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}
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ctx.Data["Source"] = source
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ctx.Data["HasTLS"] = source.HasTLS()
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if ctx.HasError() {
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ctx.HTML(http.StatusOK, tplAuthEdit)
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return
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}
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var config convert.Conversion
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switch login.Type(form.Type) {
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case login.LDAP, login.DLDAP:
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config = parseLDAPConfig(form)
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case login.SMTP:
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config = parseSMTPConfig(form)
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case login.PAM:
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config = &pamService.Source{
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ServiceName: form.PAMServiceName,
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EmailDomain: form.PAMEmailDomain,
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}
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case login.OAuth2:
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config = parseOAuth2Config(form)
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case login.SSPI:
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config, err = parseSSPIConfig(ctx, form)
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if err != nil {
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ctx.RenderWithErr(err.Error(), tplAuthEdit, form)
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return
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}
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default:
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ctx.Error(http.StatusBadRequest)
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return
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}
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source.Name = form.Name
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source.IsActive = form.IsActive
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source.IsSyncEnabled = form.IsSyncEnabled
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source.Cfg = config
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if err := login.UpdateSource(source); err != nil {
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if oauth2.IsErrOpenIDConnectInitialize(err) {
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ctx.Flash.Error(err.Error(), true)
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ctx.HTML(http.StatusOK, tplAuthEdit)
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} else {
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ctx.ServerError("UpdateSource", err)
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}
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return
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}
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log.Trace("Authentication changed by admin(%s): %d", ctx.User.Name, source.ID)
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ctx.Flash.Success(ctx.Tr("admin.auths.update_success"))
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ctx.Redirect(setting.AppSubURL + "/admin/auths/" + strconv.FormatInt(form.ID, 10))
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}
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// DeleteAuthSource response for deleting an auth source
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func DeleteAuthSource(ctx *context.Context) {
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source, err := login.GetSourceByID(ctx.ParamsInt64(":authid"))
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if err != nil {
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ctx.ServerError("login.GetSourceByID", err)
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return
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}
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if err = auth_service.DeleteLoginSource(source); err != nil {
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if login.IsErrSourceInUse(err) {
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ctx.Flash.Error(ctx.Tr("admin.auths.still_in_used"))
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} else {
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ctx.Flash.Error(fmt.Sprintf("DeleteLoginSource: %v", err))
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}
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ctx.JSON(http.StatusOK, map[string]interface{}{
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"redirect": setting.AppSubURL + "/admin/auths/" + url.PathEscape(ctx.Params(":authid")),
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})
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return
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}
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log.Trace("Authentication deleted by admin(%s): %d", ctx.User.Name, source.ID)
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ctx.Flash.Success(ctx.Tr("admin.auths.deletion_success"))
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ctx.JSON(http.StatusOK, map[string]interface{}{
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"redirect": setting.AppSubURL + "/admin/auths",
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})
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}
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