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mirror of https://github.com/go-gitea/gitea.git synced 2024-12-04 14:46:57 -05:00
gitea/routers/api/v1/repo/fork.go
Otto Richter (fnetX) 3362620ee3
Fix api error message if fork exists (#24487)
On the @Forgejo instance of Codeberg, we discovered that forking a repo
which is already forked now returns a 500 Internal Server Error, which
is unexpected. This is an attempt at fixing this.

The error message in the log:
~~~
2023/05/02 08:36:30 .../api/v1/repo/fork.go:147:CreateFork() [E]
[6450cb8e-113] ForkRepository: repository is already forked by user
[uname: ...., repo path: .../..., fork path: .../...]
~~~

The service that is used for forking returns a custom error message
which is not checked against.

About the order of options:
The case that the fork already exists should be more common, followed by
the case that a repo with the same name already exists for other
reasons. The case that the global repo limit is hit is probably not the
likeliest.

Co-authored-by: Otto Richter <otto@codeberg.org>
Co-authored-by: Giteabot <teabot@gitea.io>
2023-05-02 20:26:38 -04:00

155 lines
4.2 KiB
Go

// Copyright 2016 The Gogs Authors. All rights reserved.
// Copyright 2020 The Gitea Authors.
// SPDX-License-Identifier: MIT
package repo
import (
"fmt"
"net/http"
"code.gitea.io/gitea/models/organization"
"code.gitea.io/gitea/models/perm"
access_model "code.gitea.io/gitea/models/perm/access"
repo_model "code.gitea.io/gitea/models/repo"
user_model "code.gitea.io/gitea/models/user"
"code.gitea.io/gitea/modules/context"
api "code.gitea.io/gitea/modules/structs"
"code.gitea.io/gitea/modules/web"
"code.gitea.io/gitea/routers/api/v1/utils"
"code.gitea.io/gitea/services/convert"
repo_service "code.gitea.io/gitea/services/repository"
)
// ListForks list a repository's forks
func ListForks(ctx *context.APIContext) {
// swagger:operation GET /repos/{owner}/{repo}/forks repository listForks
// ---
// summary: List a repository's forks
// 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: 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":
// "$ref": "#/responses/RepositoryList"
forks, err := repo_model.GetForks(ctx.Repo.Repository, utils.GetListOptions(ctx))
if err != nil {
ctx.Error(http.StatusInternalServerError, "GetForks", err)
return
}
apiForks := make([]*api.Repository, len(forks))
for i, fork := range forks {
access, err := access_model.AccessLevel(ctx, ctx.Doer, fork)
if err != nil {
ctx.Error(http.StatusInternalServerError, "AccessLevel", err)
return
}
apiForks[i] = convert.ToRepo(ctx, fork, access)
}
ctx.SetTotalCountHeader(int64(ctx.Repo.Repository.NumForks))
ctx.JSON(http.StatusOK, apiForks)
}
// CreateFork create a fork of a repo
func CreateFork(ctx *context.APIContext) {
// swagger:operation POST /repos/{owner}/{repo}/forks repository createFork
// ---
// summary: Fork a repository
// produces:
// - application/json
// parameters:
// - name: owner
// in: path
// description: owner of the repo to fork
// type: string
// required: true
// - name: repo
// in: path
// description: name of the repo to fork
// type: string
// required: true
// - name: body
// in: body
// schema:
// "$ref": "#/definitions/CreateForkOption"
// responses:
// "202":
// "$ref": "#/responses/Repository"
// "403":
// "$ref": "#/responses/forbidden"
// "409":
// description: The repository with the same name already exists.
// "422":
// "$ref": "#/responses/validationError"
form := web.GetForm(ctx).(*api.CreateForkOption)
repo := ctx.Repo.Repository
var forker *user_model.User // user/org that will own the fork
if form.Organization == nil {
forker = ctx.Doer
} else {
org, err := organization.GetOrgByName(ctx, *form.Organization)
if err != nil {
if organization.IsErrOrgNotExist(err) {
ctx.Error(http.StatusUnprocessableEntity, "", err)
} else {
ctx.Error(http.StatusInternalServerError, "GetOrgByName", err)
}
return
}
isMember, err := org.IsOrgMember(ctx.Doer.ID)
if err != nil {
ctx.Error(http.StatusInternalServerError, "IsOrgMember", err)
return
} else if !isMember {
ctx.Error(http.StatusForbidden, "isMemberNot", fmt.Sprintf("User is no Member of Organisation '%s'", org.Name))
return
}
forker = org.AsUser()
}
var name string
if form.Name == nil {
name = repo.Name
} else {
name = *form.Name
}
fork, err := repo_service.ForkRepository(ctx, ctx.Doer, forker, repo_service.ForkRepoOptions{
BaseRepo: repo,
Name: name,
Description: repo.Description,
})
if err != nil {
if repo_service.IsErrForkAlreadyExist(err) || repo_model.IsErrRepoAlreadyExist(err) || repo_model.IsErrReachLimitOfRepo(err) {
ctx.Error(http.StatusConflict, "ForkRepository", err)
} else {
ctx.Error(http.StatusInternalServerError, "ForkRepository", err)
}
return
}
// TODO change back to 201
ctx.JSON(http.StatusAccepted, convert.ToRepo(ctx, fork, perm.AccessModeOwner))
}