gitea/routers/api/v1/user/gpg_key.go
zeripath b82293270c
Add option to provide signature for a token to verify key ownership (#14054)
* Add option to provide signed token to verify key ownership

Currently we will only allow a key to be matched to a user if it matches
an activated email address. This PR provides a different mechanism - if
the user provides a signature for automatically generated token (based
on the timestamp, user creation time, user ID, username and primary
email.

* Ensure verified keys can act for all active emails for the user

* Add code to mark keys as verified

* Slight UI adjustments

* Slight UI adjustments 2

* Simplify signature verification slightly

* fix postgres test

* add api routes

* handle swapped primary-keys

* Verify the no-reply address for verified keys

* Only add email addresses that are activated to keys

* Fix committer shortcut properly

* Restructure gpg_keys.go

* Use common Verification Token code

Signed-off-by: Andrew Thornton <art27@cantab.net>
2021-07-13 15:28:07 +02:00

279 lines
8.1 KiB
Go

// Copyright 2017 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 user
import (
"fmt"
"net/http"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/modules/context"
"code.gitea.io/gitea/modules/convert"
api "code.gitea.io/gitea/modules/structs"
"code.gitea.io/gitea/modules/web"
"code.gitea.io/gitea/routers/api/v1/utils"
)
func listGPGKeys(ctx *context.APIContext, uid int64, listOptions models.ListOptions) {
keys, err := models.ListGPGKeys(uid, listOptions)
if err != nil {
ctx.Error(http.StatusInternalServerError, "ListGPGKeys", err)
return
}
apiKeys := make([]*api.GPGKey, len(keys))
for i := range keys {
apiKeys[i] = convert.ToGPGKey(keys[i])
}
ctx.JSON(http.StatusOK, &apiKeys)
}
//ListGPGKeys get the GPG key list of a user
func ListGPGKeys(ctx *context.APIContext) {
// swagger:operation GET /users/{username}/gpg_keys user userListGPGKeys
// ---
// summary: List the given user's GPG keys
// produces:
// - application/json
// parameters:
// - name: username
// in: path
// description: username of user
// type: string
// required: true
// - name: page
// in: query
// description: page number of results to return (1-based)
// type: integer
// - name: limit
// in: query
// description: page size of results
// type: integer
// responses:
// "200":
// "$ref": "#/responses/GPGKeyList"
user := GetUserByParams(ctx)
if ctx.Written() {
return
}
listGPGKeys(ctx, user.ID, utils.GetListOptions(ctx))
}
//ListMyGPGKeys get the GPG key list of the authenticated user
func ListMyGPGKeys(ctx *context.APIContext) {
// swagger:operation GET /user/gpg_keys user userCurrentListGPGKeys
// ---
// summary: List the authenticated user's GPG keys
// parameters:
// - name: page
// in: query
// description: page number of results to return (1-based)
// type: integer
// - name: limit
// in: query
// description: page size of results
// type: integer
// produces:
// - application/json
// responses:
// "200":
// "$ref": "#/responses/GPGKeyList"
listGPGKeys(ctx, ctx.User.ID, utils.GetListOptions(ctx))
}
//GetGPGKey get the GPG key based on a id
func GetGPGKey(ctx *context.APIContext) {
// swagger:operation GET /user/gpg_keys/{id} user userCurrentGetGPGKey
// ---
// summary: Get a GPG key
// produces:
// - application/json
// parameters:
// - name: id
// in: path
// description: id of key to get
// type: integer
// format: int64
// required: true
// responses:
// "200":
// "$ref": "#/responses/GPGKey"
// "404":
// "$ref": "#/responses/notFound"
key, err := models.GetGPGKeyByID(ctx.ParamsInt64(":id"))
if err != nil {
if models.IsErrGPGKeyNotExist(err) {
ctx.NotFound()
} else {
ctx.Error(http.StatusInternalServerError, "GetGPGKeyByID", err)
}
return
}
ctx.JSON(http.StatusOK, convert.ToGPGKey(key))
}
// CreateUserGPGKey creates new GPG key to given user by ID.
func CreateUserGPGKey(ctx *context.APIContext, form api.CreateGPGKeyOption, uid int64) {
token := models.VerificationToken(ctx.User, 1)
lastToken := models.VerificationToken(ctx.User, 0)
keys, err := models.AddGPGKey(uid, form.ArmoredKey, token, form.Signature)
if err != nil && models.IsErrGPGInvalidTokenSignature(err) {
keys, err = models.AddGPGKey(uid, form.ArmoredKey, lastToken, form.Signature)
}
if err != nil {
HandleAddGPGKeyError(ctx, err, token)
return
}
ctx.JSON(http.StatusCreated, convert.ToGPGKey(keys[0]))
}
// GetVerificationToken returns the current token to be signed for this user
func GetVerificationToken(ctx *context.APIContext) {
// swagger:operation GET /user/gpg_key_token user getVerificationToken
// ---
// summary: Get a Token to verify
// produces:
// - text/plain
// parameters:
// responses:
// "200":
// "$ref": "#/responses/string"
// "404":
// "$ref": "#/responses/notFound"
token := models.VerificationToken(ctx.User, 1)
ctx.PlainText(http.StatusOK, []byte(token))
}
// VerifyUserGPGKey creates new GPG key to given user by ID.
func VerifyUserGPGKey(ctx *context.APIContext) {
// swagger:operation POST /user/gpg_key_verify user userVerifyGPGKey
// ---
// summary: Verify a GPG key
// consumes:
// - application/json
// produces:
// - application/json
// responses:
// "201":
// "$ref": "#/responses/GPGKey"
// "404":
// "$ref": "#/responses/notFound"
// "422":
// "$ref": "#/responses/validationError"
form := web.GetForm(ctx).(*api.VerifyGPGKeyOption)
token := models.VerificationToken(ctx.User, 1)
lastToken := models.VerificationToken(ctx.User, 0)
_, err := models.VerifyGPGKey(ctx.User.ID, form.KeyID, token, form.Signature)
if err != nil && models.IsErrGPGInvalidTokenSignature(err) {
_, err = models.VerifyGPGKey(ctx.User.ID, form.KeyID, lastToken, form.Signature)
}
if err != nil {
if models.IsErrGPGInvalidTokenSignature(err) {
ctx.Error(http.StatusUnprocessableEntity, "GPGInvalidSignature", fmt.Sprintf("The provided GPG key, signature and token do not match or token is out of date. Provide a valid signature for the token: %s", token))
return
}
ctx.Error(http.StatusInternalServerError, "VerifyUserGPGKey", err)
}
key, err := models.GetGPGKeysByKeyID(form.KeyID)
if err != nil {
if models.IsErrGPGKeyNotExist(err) {
ctx.NotFound()
} else {
ctx.Error(http.StatusInternalServerError, "GetGPGKeysByKeyID", err)
}
return
}
ctx.JSON(http.StatusOK, convert.ToGPGKey(key[0]))
}
// swagger:parameters userCurrentPostGPGKey
type swaggerUserCurrentPostGPGKey struct {
// in:body
Form api.CreateGPGKeyOption
}
//CreateGPGKey create a GPG key belonging to the authenticated user
func CreateGPGKey(ctx *context.APIContext) {
// swagger:operation POST /user/gpg_keys user userCurrentPostGPGKey
// ---
// summary: Create a GPG key
// consumes:
// - application/json
// produces:
// - application/json
// responses:
// "201":
// "$ref": "#/responses/GPGKey"
// "404":
// "$ref": "#/responses/notFound"
// "422":
// "$ref": "#/responses/validationError"
form := web.GetForm(ctx).(*api.CreateGPGKeyOption)
CreateUserGPGKey(ctx, *form, ctx.User.ID)
}
//DeleteGPGKey remove a GPG key belonging to the authenticated user
func DeleteGPGKey(ctx *context.APIContext) {
// swagger:operation DELETE /user/gpg_keys/{id} user userCurrentDeleteGPGKey
// ---
// summary: Remove a GPG key
// produces:
// - application/json
// parameters:
// - name: id
// in: path
// description: id of key to delete
// type: integer
// format: int64
// required: true
// responses:
// "204":
// "$ref": "#/responses/empty"
// "403":
// "$ref": "#/responses/forbidden"
// "404":
// "$ref": "#/responses/notFound"
if err := models.DeleteGPGKey(ctx.User, ctx.ParamsInt64(":id")); err != nil {
if models.IsErrGPGKeyAccessDenied(err) {
ctx.Error(http.StatusForbidden, "", "You do not have access to this key")
} else {
ctx.Error(http.StatusInternalServerError, "DeleteGPGKey", err)
}
return
}
ctx.Status(http.StatusNoContent)
}
// HandleAddGPGKeyError handle add GPGKey error
func HandleAddGPGKeyError(ctx *context.APIContext, err error, token string) {
switch {
case models.IsErrGPGKeyAccessDenied(err):
ctx.Error(http.StatusUnprocessableEntity, "GPGKeyAccessDenied", "You do not have access to this GPG key")
case models.IsErrGPGKeyIDAlreadyUsed(err):
ctx.Error(http.StatusUnprocessableEntity, "GPGKeyIDAlreadyUsed", "A key with the same id already exists")
case models.IsErrGPGKeyParsing(err):
ctx.Error(http.StatusUnprocessableEntity, "GPGKeyParsing", err)
case models.IsErrGPGNoEmailFound(err):
ctx.Error(http.StatusNotFound, "GPGNoEmailFound", fmt.Sprintf("None of the emails attached to the GPG key could be found. It may still be added if you provide a valid signature for the token: %s", token))
case models.IsErrGPGInvalidTokenSignature(err):
ctx.Error(http.StatusUnprocessableEntity, "GPGInvalidSignature", fmt.Sprintf("The provided GPG key, signature and token do not match or token is out of date. Provide a valid signature for the token: %s", token))
default:
ctx.Error(http.StatusInternalServerError, "AddGPGKey", err)
}
}