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gitea/routers/api/v1/repo/key.go
zeripath 01c10a951b
Fix ssh deploy and user key constraints (#1357) (#5939)
1. A key can either be an ssh user key or a deploy key. It cannot be both.
2. If a key is a user key - it can only be associated with one user.
3. If a key is a deploy key - it can be used in multiple repositories and the permissions it has on those repositories can be different.
4. If a repository is deleted, its deploy keys must be deleted too.

We currently don't enforce any of this and multiple repositories access with different permissions doesn't work at all. This PR enforces the following constraints:

- [x] You should not be able to add the same user key as another user
- [x] You should not be able to add a ssh user key which is being used as a deploy key
- [x] You should not be able to add a ssh deploy key which is being used as a user key
- [x] If you add an ssh deploy key to another repository you should be able to use it in different modes without losing the ability to use it in the other mode.
- [x] If you delete a repository you must delete all its deploy keys.

Fix #1357
2019-02-03 23:56:53 +00:00

253 lines
6.9 KiB
Go

// Copyright 2015 The Gogs 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 repo
import (
"fmt"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/modules/context"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/routers/api/v1/convert"
api "code.gitea.io/sdk/gitea"
)
// appendPrivateInformation appends the owner and key type information to api.PublicKey
func appendPrivateInformation(apiKey *api.DeployKey, key *models.DeployKey, repository *models.Repository) (*api.DeployKey, error) {
apiKey.ReadOnly = key.Mode == models.AccessModeRead
if repository.ID == key.RepoID {
apiKey.Repository = repository.APIFormat(key.Mode)
} else {
repo, err := models.GetRepositoryByID(key.RepoID)
if err != nil {
return apiKey, err
}
apiKey.Repository = repo.APIFormat(key.Mode)
}
return apiKey, nil
}
func composeDeployKeysAPILink(repoPath string) string {
return setting.AppURL + "api/v1/repos/" + repoPath + "/keys/"
}
// ListDeployKeys list all the deploy keys of a repository
func ListDeployKeys(ctx *context.APIContext) {
// swagger:operation GET /repos/{owner}/{repo}/keys repository repoListKeys
// ---
// summary: List a repository's keys
// produces:
// - application/json
// parameters:
// - name: owner
// in: path
// description: owner of the repo
// type: string
// required: true
// - name: repo
// in: path
// description: name of the repo
// type: string
// required: true
// - name: key_id
// in: query
// description: the key_id to search for
// type: integer
// - name: fingerprint
// in: query
// description: fingerprint of the key
// type: string
// responses:
// "200":
// "$ref": "#/responses/DeployKeyList"
var keys []*models.DeployKey
var err error
fingerprint := ctx.Query("fingerprint")
keyID := ctx.QueryInt64("key_id")
if fingerprint != "" || keyID != 0 {
keys, err = models.SearchDeployKeys(ctx.Repo.Repository.ID, keyID, fingerprint)
} else {
keys, err = models.ListDeployKeys(ctx.Repo.Repository.ID)
}
if err != nil {
ctx.Error(500, "ListDeployKeys", err)
return
}
apiLink := composeDeployKeysAPILink(ctx.Repo.Owner.Name + "/" + ctx.Repo.Repository.Name)
apiKeys := make([]*api.DeployKey, len(keys))
for i := range keys {
if err = keys[i].GetContent(); err != nil {
ctx.Error(500, "GetContent", err)
return
}
apiKeys[i] = convert.ToDeployKey(apiLink, keys[i])
if ctx.User.IsAdmin || ((ctx.Repo.Repository.ID == keys[i].RepoID) && (ctx.User.ID == ctx.Repo.Owner.ID)) {
apiKeys[i], _ = appendPrivateInformation(apiKeys[i], keys[i], ctx.Repo.Repository)
}
}
ctx.JSON(200, &apiKeys)
}
// GetDeployKey get a deploy key by id
func GetDeployKey(ctx *context.APIContext) {
// swagger:operation GET /repos/{owner}/{repo}/keys/{id} repository repoGetKey
// ---
// summary: Get a repository's key by id
// produces:
// - application/json
// parameters:
// - name: owner
// in: path
// description: owner of the repo
// type: string
// required: true
// - name: repo
// in: path
// description: name of the repo
// type: string
// required: true
// - name: id
// in: path
// description: id of the key to get
// type: integer
// format: int64
// required: true
// responses:
// "200":
// "$ref": "#/responses/DeployKey"
key, err := models.GetDeployKeyByID(ctx.ParamsInt64(":id"))
if err != nil {
if models.IsErrDeployKeyNotExist(err) {
ctx.Status(404)
} else {
ctx.Error(500, "GetDeployKeyByID", err)
}
return
}
if err = key.GetContent(); err != nil {
ctx.Error(500, "GetContent", err)
return
}
apiLink := composeDeployKeysAPILink(ctx.Repo.Owner.Name + "/" + ctx.Repo.Repository.Name)
apiKey := convert.ToDeployKey(apiLink, key)
if ctx.User.IsAdmin || ((ctx.Repo.Repository.ID == key.RepoID) && (ctx.User.ID == ctx.Repo.Owner.ID)) {
apiKey, _ = appendPrivateInformation(apiKey, key, ctx.Repo.Repository)
}
ctx.JSON(200, apiKey)
}
// HandleCheckKeyStringError handle check key error
func HandleCheckKeyStringError(ctx *context.APIContext, err error) {
if models.IsErrSSHDisabled(err) {
ctx.Error(422, "", "SSH is disabled")
} else if models.IsErrKeyUnableVerify(err) {
ctx.Error(422, "", "Unable to verify key content")
} else {
ctx.Error(422, "", fmt.Errorf("Invalid key content: %v", err))
}
}
// HandleAddKeyError handle add key error
func HandleAddKeyError(ctx *context.APIContext, err error) {
switch {
case models.IsErrDeployKeyAlreadyExist(err):
ctx.Error(422, "", "This key has already been added to this repository")
case models.IsErrKeyAlreadyExist(err):
ctx.Error(422, "", "Key content has been used as non-deploy key")
case models.IsErrKeyNameAlreadyUsed(err):
ctx.Error(422, "", "Key title has been used")
default:
ctx.Error(500, "AddKey", err)
}
}
// CreateDeployKey create deploy key for a repository
func CreateDeployKey(ctx *context.APIContext, form api.CreateKeyOption) {
// swagger:operation POST /repos/{owner}/{repo}/keys repository repoCreateKey
// ---
// summary: Add a key to a repository
// consumes:
// - application/json
// produces:
// - application/json
// parameters:
// - name: owner
// in: path
// description: owner of the repo
// type: string
// required: true
// - name: repo
// in: path
// description: name of the repo
// type: string
// required: true
// - name: body
// in: body
// schema:
// "$ref": "#/definitions/CreateKeyOption"
// responses:
// "201":
// "$ref": "#/responses/DeployKey"
content, err := models.CheckPublicKeyString(form.Key)
if err != nil {
HandleCheckKeyStringError(ctx, err)
return
}
key, err := models.AddDeployKey(ctx.Repo.Repository.ID, form.Title, content, form.ReadOnly)
if err != nil {
HandleAddKeyError(ctx, err)
return
}
key.Content = content
apiLink := composeDeployKeysAPILink(ctx.Repo.Owner.Name + "/" + ctx.Repo.Repository.Name)
ctx.JSON(201, convert.ToDeployKey(apiLink, key))
}
// DeleteDeploykey delete deploy key for a repository
func DeleteDeploykey(ctx *context.APIContext) {
// swagger:operation DELETE /repos/{owner}/{repo}/keys/{id} repository repoDeleteKey
// ---
// summary: Delete a key from a repository
// parameters:
// - name: owner
// in: path
// description: owner of the repo
// type: string
// required: true
// - name: repo
// in: path
// description: name of the repo
// type: string
// required: true
// - name: id
// in: path
// description: id of the key to delete
// type: integer
// format: int64
// required: true
// responses:
// "204":
// "$ref": "#/responses/empty"
if err := models.DeleteDeployKey(ctx.User, ctx.ParamsInt64(":id")); err != nil {
if models.IsErrKeyAccessDenied(err) {
ctx.Error(403, "", "You do not have access to this key")
} else {
ctx.Error(500, "DeleteDeployKey", err)
}
return
}
ctx.Status(204)
}