forgejo-federation/routers/web/user/setting/keys.go
Wim 6fe756dc93
Add support for ssh commit signing (#17743)
* Add support for ssh commit signing

* Split out ssh verification to separate file

* Show ssh key fingerprint on commit page

* Update sshsig lib

* Make sure we verify against correct namespace

* Add ssh public key verification via ssh signatures

When adding a public ssh key also validate that this user actually
owns the key by signing a token with the private key.

* Remove some gpg references and make verify key optional

* Fix spaces indentation

* Update options/locale/locale_en-US.ini

Co-authored-by: Gusted <williamzijl7@hotmail.com>

* Update templates/user/settings/keys_ssh.tmpl

Co-authored-by: Gusted <williamzijl7@hotmail.com>

* Update options/locale/locale_en-US.ini

Co-authored-by: Gusted <williamzijl7@hotmail.com>

* Update options/locale/locale_en-US.ini

Co-authored-by: Gusted <williamzijl7@hotmail.com>

* Update models/ssh_key_commit_verification.go

Co-authored-by: Gusted <williamzijl7@hotmail.com>

* Reword ssh/gpg_key_success message

* Change Badsignature to NoKeyFound

* Add sign/verify tests

* Fix upstream api changes to user_model User

* Match exact on SSH signature

* Fix code review remarks

Co-authored-by: Gusted <williamzijl7@hotmail.com>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: techknowlogick <techknowlogick@gitea.io>
2021-12-19 00:37:18 -05:00

294 lines
9.9 KiB
Go

// Copyright 2014 The Gogs Authors. All rights reserved.
// Copyright 2018 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 setting
import (
"net/http"
asymkey_model "code.gitea.io/gitea/models/asymkey"
"code.gitea.io/gitea/models/db"
"code.gitea.io/gitea/modules/base"
"code.gitea.io/gitea/modules/context"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/web"
asymkey_service "code.gitea.io/gitea/services/asymkey"
"code.gitea.io/gitea/services/forms"
)
const (
tplSettingsKeys base.TplName = "user/settings/keys"
)
// Keys render user's SSH/GPG public keys page
func Keys(ctx *context.Context) {
ctx.Data["Title"] = ctx.Tr("settings")
ctx.Data["PageIsSettingsKeys"] = true
ctx.Data["DisableSSH"] = setting.SSH.Disabled
ctx.Data["BuiltinSSH"] = setting.SSH.StartBuiltinServer
ctx.Data["AllowPrincipals"] = setting.SSH.AuthorizedPrincipalsEnabled
loadKeysData(ctx)
ctx.HTML(http.StatusOK, tplSettingsKeys)
}
// KeysPost response for change user's SSH/GPG keys
func KeysPost(ctx *context.Context) {
form := web.GetForm(ctx).(*forms.AddKeyForm)
ctx.Data["Title"] = ctx.Tr("settings")
ctx.Data["PageIsSettingsKeys"] = true
ctx.Data["DisableSSH"] = setting.SSH.Disabled
ctx.Data["BuiltinSSH"] = setting.SSH.StartBuiltinServer
ctx.Data["AllowPrincipals"] = setting.SSH.AuthorizedPrincipalsEnabled
if ctx.HasError() {
loadKeysData(ctx)
ctx.HTML(http.StatusOK, tplSettingsKeys)
return
}
switch form.Type {
case "principal":
content, err := asymkey_model.CheckPrincipalKeyString(ctx.User, form.Content)
if err != nil {
if db.IsErrSSHDisabled(err) {
ctx.Flash.Info(ctx.Tr("settings.ssh_disabled"))
} else {
ctx.Flash.Error(ctx.Tr("form.invalid_ssh_principal", err.Error()))
}
ctx.Redirect(setting.AppSubURL + "/user/settings/keys")
return
}
if _, err = asymkey_model.AddPrincipalKey(ctx.User.ID, content, 0); err != nil {
ctx.Data["HasPrincipalError"] = true
switch {
case asymkey_model.IsErrKeyAlreadyExist(err), asymkey_model.IsErrKeyNameAlreadyUsed(err):
loadKeysData(ctx)
ctx.Data["Err_Content"] = true
ctx.RenderWithErr(ctx.Tr("settings.ssh_principal_been_used"), tplSettingsKeys, &form)
default:
ctx.ServerError("AddPrincipalKey", err)
}
return
}
ctx.Flash.Success(ctx.Tr("settings.add_principal_success", form.Content))
ctx.Redirect(setting.AppSubURL + "/user/settings/keys")
case "gpg":
token := asymkey_model.VerificationToken(ctx.User, 1)
lastToken := asymkey_model.VerificationToken(ctx.User, 0)
keys, err := asymkey_model.AddGPGKey(ctx.User.ID, form.Content, token, form.Signature)
if err != nil && asymkey_model.IsErrGPGInvalidTokenSignature(err) {
keys, err = asymkey_model.AddGPGKey(ctx.User.ID, form.Content, lastToken, form.Signature)
}
if err != nil {
ctx.Data["HasGPGError"] = true
switch {
case asymkey_model.IsErrGPGKeyParsing(err):
ctx.Flash.Error(ctx.Tr("form.invalid_gpg_key", err.Error()))
ctx.Redirect(setting.AppSubURL + "/user/settings/keys")
case asymkey_model.IsErrGPGKeyIDAlreadyUsed(err):
loadKeysData(ctx)
ctx.Data["Err_Content"] = true
ctx.RenderWithErr(ctx.Tr("settings.gpg_key_id_used"), tplSettingsKeys, &form)
case asymkey_model.IsErrGPGInvalidTokenSignature(err):
loadKeysData(ctx)
ctx.Data["Err_Content"] = true
ctx.Data["Err_Signature"] = true
ctx.Data["KeyID"] = err.(asymkey_model.ErrGPGInvalidTokenSignature).ID
ctx.RenderWithErr(ctx.Tr("settings.gpg_invalid_token_signature"), tplSettingsKeys, &form)
case asymkey_model.IsErrGPGNoEmailFound(err):
loadKeysData(ctx)
ctx.Data["Err_Content"] = true
ctx.Data["Err_Signature"] = true
ctx.Data["KeyID"] = err.(asymkey_model.ErrGPGNoEmailFound).ID
ctx.RenderWithErr(ctx.Tr("settings.gpg_no_key_email_found"), tplSettingsKeys, &form)
default:
ctx.ServerError("AddPublicKey", err)
}
return
}
keyIDs := ""
for _, key := range keys {
keyIDs += key.KeyID
keyIDs += ", "
}
if len(keyIDs) > 0 {
keyIDs = keyIDs[:len(keyIDs)-2]
}
ctx.Flash.Success(ctx.Tr("settings.add_gpg_key_success", keyIDs))
ctx.Redirect(setting.AppSubURL + "/user/settings/keys")
case "verify_gpg":
token := asymkey_model.VerificationToken(ctx.User, 1)
lastToken := asymkey_model.VerificationToken(ctx.User, 0)
keyID, err := asymkey_model.VerifyGPGKey(ctx.User.ID, form.KeyID, token, form.Signature)
if err != nil && asymkey_model.IsErrGPGInvalidTokenSignature(err) {
keyID, err = asymkey_model.VerifyGPGKey(ctx.User.ID, form.KeyID, lastToken, form.Signature)
}
if err != nil {
ctx.Data["HasGPGVerifyError"] = true
switch {
case asymkey_model.IsErrGPGInvalidTokenSignature(err):
loadKeysData(ctx)
ctx.Data["VerifyingID"] = form.KeyID
ctx.Data["Err_Signature"] = true
ctx.Data["KeyID"] = err.(asymkey_model.ErrGPGInvalidTokenSignature).ID
ctx.RenderWithErr(ctx.Tr("settings.gpg_invalid_token_signature"), tplSettingsKeys, &form)
default:
ctx.ServerError("VerifyGPG", err)
}
}
ctx.Flash.Success(ctx.Tr("settings.verify_gpg_key_success", keyID))
ctx.Redirect(setting.AppSubURL + "/user/settings/keys")
case "ssh":
content, err := asymkey_model.CheckPublicKeyString(form.Content)
if err != nil {
if db.IsErrSSHDisabled(err) {
ctx.Flash.Info(ctx.Tr("settings.ssh_disabled"))
} else if asymkey_model.IsErrKeyUnableVerify(err) {
ctx.Flash.Info(ctx.Tr("form.unable_verify_ssh_key"))
} else {
ctx.Flash.Error(ctx.Tr("form.invalid_ssh_key", err.Error()))
}
ctx.Redirect(setting.AppSubURL + "/user/settings/keys")
return
}
if _, err = asymkey_model.AddPublicKey(ctx.User.ID, form.Title, content, 0); err != nil {
ctx.Data["HasSSHError"] = true
switch {
case asymkey_model.IsErrKeyAlreadyExist(err):
loadKeysData(ctx)
ctx.Data["Err_Content"] = true
ctx.RenderWithErr(ctx.Tr("settings.ssh_key_been_used"), tplSettingsKeys, &form)
case asymkey_model.IsErrKeyNameAlreadyUsed(err):
loadKeysData(ctx)
ctx.Data["Err_Title"] = true
ctx.RenderWithErr(ctx.Tr("settings.ssh_key_name_used"), tplSettingsKeys, &form)
case asymkey_model.IsErrKeyUnableVerify(err):
ctx.Flash.Info(ctx.Tr("form.unable_verify_ssh_key"))
ctx.Redirect(setting.AppSubURL + "/user/settings/keys")
default:
ctx.ServerError("AddPublicKey", err)
}
return
}
ctx.Flash.Success(ctx.Tr("settings.add_key_success", form.Title))
ctx.Redirect(setting.AppSubURL + "/user/settings/keys")
case "verify_ssh":
token := asymkey_model.VerificationToken(ctx.User, 1)
lastToken := asymkey_model.VerificationToken(ctx.User, 0)
fingerprint, err := asymkey_model.VerifySSHKey(ctx.User.ID, form.Fingerprint, token, form.Signature)
if err != nil && asymkey_model.IsErrSSHInvalidTokenSignature(err) {
fingerprint, err = asymkey_model.VerifySSHKey(ctx.User.ID, form.Fingerprint, lastToken, form.Signature)
}
if err != nil {
ctx.Data["HasSSHVerifyError"] = true
switch {
case asymkey_model.IsErrSSHInvalidTokenSignature(err):
loadKeysData(ctx)
ctx.Data["Err_Signature"] = true
ctx.Data["Fingerprint"] = err.(asymkey_model.ErrSSHInvalidTokenSignature).Fingerprint
ctx.RenderWithErr(ctx.Tr("settings.ssh_invalid_token_signature"), tplSettingsKeys, &form)
default:
ctx.ServerError("VerifySSH", err)
}
}
ctx.Flash.Success(ctx.Tr("settings.verify_ssh_key_success", fingerprint))
ctx.Redirect(setting.AppSubURL + "/user/settings/keys")
default:
ctx.Flash.Warning("Function not implemented")
ctx.Redirect(setting.AppSubURL + "/user/settings/keys")
}
}
// DeleteKey response for delete user's SSH/GPG key
func DeleteKey(ctx *context.Context) {
switch ctx.FormString("type") {
case "gpg":
if err := asymkey_model.DeleteGPGKey(ctx.User, ctx.FormInt64("id")); err != nil {
ctx.Flash.Error("DeleteGPGKey: " + err.Error())
} else {
ctx.Flash.Success(ctx.Tr("settings.gpg_key_deletion_success"))
}
case "ssh":
keyID := ctx.FormInt64("id")
external, err := asymkey_model.PublicKeyIsExternallyManaged(keyID)
if err != nil {
ctx.ServerError("sshKeysExternalManaged", err)
return
}
if external {
ctx.Flash.Error(ctx.Tr("settings.ssh_externally_managed"))
ctx.Redirect(setting.AppSubURL + "/user/settings/keys")
return
}
if err := asymkey_service.DeletePublicKey(ctx.User, keyID); err != nil {
ctx.Flash.Error("DeletePublicKey: " + err.Error())
} else {
ctx.Flash.Success(ctx.Tr("settings.ssh_key_deletion_success"))
}
case "principal":
if err := asymkey_service.DeletePublicKey(ctx.User, ctx.FormInt64("id")); err != nil {
ctx.Flash.Error("DeletePublicKey: " + err.Error())
} else {
ctx.Flash.Success(ctx.Tr("settings.ssh_principal_deletion_success"))
}
default:
ctx.Flash.Warning("Function not implemented")
ctx.Redirect(setting.AppSubURL + "/user/settings/keys")
}
ctx.JSON(http.StatusOK, map[string]interface{}{
"redirect": setting.AppSubURL + "/user/settings/keys",
})
}
func loadKeysData(ctx *context.Context) {
keys, err := asymkey_model.ListPublicKeys(ctx.User.ID, db.ListOptions{})
if err != nil {
ctx.ServerError("ListPublicKeys", err)
return
}
ctx.Data["Keys"] = keys
externalKeys, err := asymkey_model.PublicKeysAreExternallyManaged(keys)
if err != nil {
ctx.ServerError("ListPublicKeys", err)
return
}
ctx.Data["ExternalKeys"] = externalKeys
gpgkeys, err := asymkey_model.ListGPGKeys(db.DefaultContext, ctx.User.ID, db.ListOptions{})
if err != nil {
ctx.ServerError("ListGPGKeys", err)
return
}
ctx.Data["GPGKeys"] = gpgkeys
tokenToSign := asymkey_model.VerificationToken(ctx.User, 1)
// generate a new aes cipher using the csrfToken
ctx.Data["TokenToSign"] = tokenToSign
principals, err := asymkey_model.ListPrincipalKeys(ctx.User.ID, db.ListOptions{})
if err != nil {
ctx.ServerError("ListPrincipalKeys", err)
return
}
ctx.Data["Principals"] = principals
ctx.Data["VerifyingID"] = ctx.FormString("verify_gpg")
ctx.Data["VerifyingFingerprint"] = ctx.FormString("verify_ssh")
}