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// Copyright 2020 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 repo
import (
"bytes"
"errors"
"fmt"
"net/http"
"strings"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/models/db"
"code.gitea.io/gitea/models/perm"
repo_model "code.gitea.io/gitea/models/repo"
user_model "code.gitea.io/gitea/models/user"
"code.gitea.io/gitea/modules/context"
"code.gitea.io/gitea/modules/convert"
"code.gitea.io/gitea/modules/graceful"
"code.gitea.io/gitea/modules/lfs"
"code.gitea.io/gitea/modules/log"
base "code.gitea.io/gitea/modules/migration"
"code.gitea.io/gitea/modules/notification"
repo_module "code.gitea.io/gitea/modules/repository"
"code.gitea.io/gitea/modules/setting"
api "code.gitea.io/gitea/modules/structs"
"code.gitea.io/gitea/modules/util"
"code.gitea.io/gitea/modules/web"
"code.gitea.io/gitea/services/forms"
"code.gitea.io/gitea/services/migrations"
)
// Migrate migrate remote git repository to gitea
func Migrate(ctx *context.APIContext) {
// swagger:operation POST /repos/migrate repository repoMigrate
// ---
// summary: Migrate a remote git repository
// consumes:
// - application/json
// produces:
// - application/json
// parameters:
// - name: body
// in: body
// schema:
// "$ref": "#/definitions/MigrateRepoOptions"
// responses:
// "201":
// "$ref": "#/responses/Repository"
// "403":
// "$ref": "#/responses/forbidden"
// "422":
// "$ref": "#/responses/validationError"
form := web.GetForm(ctx).(*api.MigrateRepoOptions)
// get repoOwner
var (
repoOwner *user_model.User
err error
)
if len(form.RepoOwner) != 0 {
repoOwner, err = user_model.GetUserByName(form.RepoOwner)
} else if form.RepoOwnerID != 0 {
repoOwner, err = user_model.GetUserByID(form.RepoOwnerID)
} else {
repoOwner = ctx.User
}
if err != nil {
if user_model.IsErrUserNotExist(err) {
ctx.Error(http.StatusUnprocessableEntity, "", err)
} else {
ctx.Error(http.StatusInternalServerError, "GetUser", err)
}
return
}
if ctx.HasError() {
ctx.Error(http.StatusUnprocessableEntity, "", ctx.GetErrMsg())
return
}
if !ctx.User.IsAdmin {
if !repoOwner.IsOrganization() && ctx.User.ID != repoOwner.ID {
ctx.Error(http.StatusForbidden, "", "Given user is not an organization.")
return
}
if repoOwner.IsOrganization() {
// Check ownership of organization.
isOwner, err := models.OrgFromUser(repoOwner).IsOwnedBy(ctx.User.ID)
if err != nil {
ctx.Error(http.StatusInternalServerError, "IsOwnedBy", err)
return
} else if !isOwner {
ctx.Error(http.StatusForbidden, "", "Given user is not owner of organization.")
return
}
}
}
remoteAddr, err := forms.ParseRemoteAddr(form.CloneAddr, form.AuthUsername, form.AuthPassword)
if err == nil {
err = migrations.IsMigrateURLAllowed(remoteAddr, ctx.User)
}
if err != nil {
handleRemoteAddrError(ctx, err)
return
}
gitServiceType := convert.ToGitServiceType(form.Service)
if form.Mirror && setting.Mirror.DisableNewPull {
ctx.Error(http.StatusForbidden, "MirrorsGlobalDisabled", fmt.Errorf("the site administrator has disabled the creation of new pull mirrors"))
return
}
if setting.Repository.DisableMigrations {
ctx.Error(http.StatusForbidden, "MigrationsGlobalDisabled", fmt.Errorf("the site administrator has disabled migrations"))
return
}
form.LFS = form.LFS && setting.LFS.StartServer
if form.LFS && len(form.LFSEndpoint) > 0 {
ep := lfs.DetermineEndpoint("", form.LFSEndpoint)
if ep == nil {
ctx.Error(http.StatusInternalServerError, "", ctx.Tr("repo.migrate.invalid_lfs_endpoint"))
return
}
err = migrations.IsMigrateURLAllowed(ep.String(), ctx.User)
if err != nil {
handleRemoteAddrError(ctx, err)
return
}
}
opts := migrations.MigrateOptions{
CloneAddr: remoteAddr,
RepoName: form.RepoName,
Description: form.Description,
Private: form.Private || setting.Repository.ForcePrivate,
Mirror: form.Mirror,
LFS: form.LFS,
LFSEndpoint: form.LFSEndpoint,
AuthUsername: form.AuthUsername,
AuthPassword: form.AuthPassword,
AuthToken: form.AuthToken,
Wiki: form.Wiki,
Issues: form.Issues,
Milestones: form.Milestones,
Labels: form.Labels,
Comments: true,
PullRequests: form.PullRequests,
Releases: form.Releases,
GitServiceType: gitServiceType,
MirrorInterval: form.MirrorInterval,
}
if opts.Mirror {
opts.Issues = false
opts.Milestones = false
opts.Labels = false
opts.Comments = false
opts.PullRequests = false
opts.Releases = false
}
repo, err := repo_module.CreateRepository(ctx.User, repoOwner, models.CreateRepoOptions{
Name: opts.RepoName,
Description: opts.Description,
OriginalURL: form.CloneAddr,
GitServiceType: gitServiceType,
IsPrivate: opts.Private,
IsMirror: opts.Mirror,
Status: repo_model.RepositoryBeingMigrated,
})
if err != nil {
handleMigrateError(ctx, repoOwner, remoteAddr, err)
return
}
opts.MigrateToRepoID = repo.ID
defer func() {
if e := recover(); e != nil {
var buf bytes.Buffer
fmt.Fprintf(&buf, "Handler crashed with error: %v", log.Stack(2))
err = errors.New(buf.String())
}
if err == nil {
notification.NotifyMigrateRepository(ctx.User, repoOwner, repo)
return
}
if repo != nil {
if errDelete := models.DeleteRepository(ctx.User, repoOwner.ID, repo.ID); errDelete != nil {
log.Error("DeleteRepository: %v", errDelete)
}
}
}()
if repo, err = migrations.MigrateRepository(graceful.GetManager().HammerContext(), ctx.User, repoOwner.Name, opts, nil); err != nil {
handleMigrateError(ctx, repoOwner, remoteAddr, err)
return
}
log.Trace("Repository migrated: %s/%s", repoOwner.Name, form.RepoName)
ctx.JSON(http.StatusCreated, convert.ToRepo(repo, perm.AccessModeAdmin))
}
func handleMigrateError(ctx *context.APIContext, repoOwner *user_model.User, remoteAddr string, err error) {
switch {
case repo_model.IsErrRepoAlreadyExist(err):
ctx.Error(http.StatusConflict, "", "The repository with the same name already exists.")
case repo_model.IsErrRepoFilesAlreadyExist(err):
ctx.Error(http.StatusConflict, "", "Files already exist for this repository. Adopt them or delete them.")
case migrations.IsRateLimitError(err):
ctx.Error(http.StatusUnprocessableEntity, "", "Remote visit addressed rate limitation.")
case migrations.IsTwoFactorAuthError(err):
ctx.Error(http.StatusUnprocessableEntity, "", "Remote visit required two factors authentication.")
case repo_model.IsErrReachLimitOfRepo(err):
ctx.Error(http.StatusUnprocessableEntity, "", fmt.Sprintf("You have already reached your limit of %d repositories.", repoOwner.MaxCreationLimit()))
case db.IsErrNameReserved(err):
ctx.Error(http.StatusUnprocessableEntity, "", fmt.Sprintf("The username '%s' is reserved.", err.(db.ErrNameReserved).Name))
case db.IsErrNameCharsNotAllowed(err):
ctx.Error(http.StatusUnprocessableEntity, "", fmt.Sprintf("The username '%s' contains invalid characters.", err.(db.ErrNameCharsNotAllowed).Name))
case db.IsErrNamePatternNotAllowed(err):
ctx.Error(http.StatusUnprocessableEntity, "", fmt.Sprintf("The pattern '%s' is not allowed in a username.", err.(db.ErrNamePatternNotAllowed).Pattern))
case models.IsErrInvalidCloneAddr(err):
ctx.Error(http.StatusUnprocessableEntity, "", err)
case base.IsErrNotSupported(err):
ctx.Error(http.StatusUnprocessableEntity, "", err)
default:
err = util.NewStringURLSanitizedError(err, remoteAddr, true)
if strings.Contains(err.Error(), "Authentication failed") ||
strings.Contains(err.Error(), "Bad credentials") ||
strings.Contains(err.Error(), "could not read Username") {
ctx.Error(http.StatusUnprocessableEntity, "", fmt.Sprintf("Authentication failed: %v.", err))
} else if strings.Contains(err.Error(), "fatal:") {
ctx.Error(http.StatusUnprocessableEntity, "", fmt.Sprintf("Migration failed: %v.", err))
} else {
ctx.Error(http.StatusInternalServerError, "MigrateRepository", err)
}
}
}
func handleRemoteAddrError(ctx *context.APIContext, err error) {
if models.IsErrInvalidCloneAddr(err) {
addrErr := err.(*models.ErrInvalidCloneAddr)
switch {
case addrErr.IsURLError:
ctx.Error(http.StatusUnprocessableEntity, "", err)
case addrErr.IsPermissionDenied:
if addrErr.LocalPath {
ctx.Error(http.StatusUnprocessableEntity, "", "You are not allowed to import local repositories.")
} else {
ctx.Error(http.StatusUnprocessableEntity, "", "You can not import from disallowed hosts.")
}
case addrErr.IsInvalidPath:
ctx.Error(http.StatusUnprocessableEntity, "", "Invalid local path, it does not exist or not a directory.")
default:
ctx.Error(http.StatusInternalServerError, "ParseRemoteAddr", "Unknown error type (ErrInvalidCloneAddr): "+err.Error())
}
} else {
ctx.Error(http.StatusInternalServerError, "ParseRemoteAddr", err)
}
}
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