gitea/modules/updatechecker/update_checker.go
2023-10-15 17:46:06 +02:00

98 lines
2.3 KiB
Go

// Copyright 2021 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package updatechecker
import (
"context"
"io"
"net/http"
"code.gitea.io/gitea/modules/json"
"code.gitea.io/gitea/modules/proxy"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/system"
"github.com/hashicorp/go-version"
)
// CheckerState stores the remote version from the JSON endpoint
type CheckerState struct {
LatestVersion string
}
// Name returns the name of the state item for update checker
func (r *CheckerState) Name() string {
return "update-checker"
}
// GiteaUpdateChecker returns error when new version of Gitea is available
func GiteaUpdateChecker(httpEndpoint string) error {
httpClient := &http.Client{
Transport: &http.Transport{
Proxy: proxy.Proxy(),
},
}
req, err := http.NewRequest("GET", httpEndpoint, nil)
if err != nil {
return err
}
resp, err := httpClient.Do(req)
if err != nil {
return err
}
defer resp.Body.Close()
body, err := io.ReadAll(resp.Body)
if err != nil {
return err
}
type respType struct {
Latest struct {
Version string `json:"version"`
} `json:"latest"`
}
respData := respType{}
err = json.Unmarshal(body, &respData)
if err != nil {
return err
}
return UpdateRemoteVersion(req.Context(), respData.Latest.Version)
}
// UpdateRemoteVersion updates the latest available version of Gitea
func UpdateRemoteVersion(ctx context.Context, version string) (err error) {
return system.AppState.Set(ctx, &CheckerState{LatestVersion: version})
}
// GetRemoteVersion returns the current remote version (or currently installed version if fail to fetch from DB)
func GetRemoteVersion(ctx context.Context) string {
item := new(CheckerState)
if err := system.AppState.Get(ctx, item); err != nil {
return ""
}
return item.LatestVersion
}
// GetNeedUpdate returns true whether a newer version of Gitea is available
func GetNeedUpdate(ctx context.Context) bool {
curVer, err := version.NewVersion(setting.AppVer)
if err != nil {
// return false to fail silently
return false
}
remoteVerStr := GetRemoteVersion(ctx)
if remoteVerStr == "" {
// no remote version is known
return false
}
remoteVer, err := version.NewVersion(remoteVerStr)
if err != nil {
// return false to fail silently
return false
}
return curVer.LessThan(remoteVer)
}