bd820aa9c5
To avoid duplicated load of the same data in an HTTP request, we can set
a context cache to do that. i.e. Some pages may load a user from a
database with the same id in different areas on the same page. But the
code is hidden in two different deep logic. How should we share the
user? As a result of this PR, now if both entry functions accept
`context.Context` as the first parameter and we just need to refactor
`GetUserByID` to reuse the user from the context cache. Then it will not
be loaded twice on an HTTP request.
But of course, sometimes we would like to reload an object from the
database, that's why `RemoveContextData` is also exposed.
The core context cache is here. It defines a new context
```go
type cacheContext struct {
ctx context.Context
data map[any]map[any]any
lock sync.RWMutex
}
var cacheContextKey = struct{}{}
func WithCacheContext(ctx context.Context) context.Context {
return context.WithValue(ctx, cacheContextKey, &cacheContext{
ctx: ctx,
data: make(map[any]map[any]any),
})
}
```
Then you can use the below 4 methods to read/write/del the data within
the same context.
```go
func GetContextData(ctx context.Context, tp, key any) any
func SetContextData(ctx context.Context, tp, key, value any)
func RemoveContextData(ctx context.Context, tp, key any)
func GetWithContextCache[T any](ctx context.Context, cacheGroupKey string, cacheTargetID any, f func() (T, error)) (T, error)
```
Then let's take a look at how `system.GetString` implement it.
```go
func GetSetting(ctx context.Context, key string) (string, error) {
return cache.GetWithContextCache(ctx, contextCacheKey, key, func() (string, error) {
return cache.GetString(genSettingCacheKey(key), func() (string, error) {
res, err := GetSettingNoCache(ctx, key)
if err != nil {
return "", err
}
return res.SettingValue, nil
})
})
}
```
First, it will check if context data include the setting object with the
key. If not, it will query from the global cache which may be memory or
a Redis cache. If not, it will get the object from the database. In the
end, if the object gets from the global cache or database, it will be
set into the context cache.
An object stored in the context cache will only be destroyed after the
context disappeared.
246 lines
7.4 KiB
Go
246 lines
7.4 KiB
Go
// Copyright 2014 The Gogs Authors. All rights reserved.
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// Copyright 2019 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package admin
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import (
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"fmt"
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"net/http"
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"net/url"
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"os"
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"strconv"
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"strings"
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system_model "code.gitea.io/gitea/models/system"
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"code.gitea.io/gitea/modules/base"
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"code.gitea.io/gitea/modules/context"
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"code.gitea.io/gitea/modules/git"
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"code.gitea.io/gitea/modules/json"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/setting"
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"code.gitea.io/gitea/modules/util"
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"code.gitea.io/gitea/services/mailer"
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"gitea.com/go-chi/session"
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)
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const tplConfig base.TplName = "admin/config"
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// SendTestMail send test mail to confirm mail service is OK
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func SendTestMail(ctx *context.Context) {
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email := ctx.FormString("email")
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// Send a test email to the user's email address and redirect back to Config
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if err := mailer.SendTestMail(email); err != nil {
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ctx.Flash.Error(ctx.Tr("admin.config.test_mail_failed", email, err))
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} else {
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ctx.Flash.Info(ctx.Tr("admin.config.test_mail_sent", email))
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}
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ctx.Redirect(setting.AppSubURL + "/admin/config")
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}
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func shadowPasswordKV(cfgItem, splitter string) string {
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fields := strings.Split(cfgItem, splitter)
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for i := 0; i < len(fields); i++ {
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if strings.HasPrefix(fields[i], "password=") {
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fields[i] = "password=******"
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break
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}
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}
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return strings.Join(fields, splitter)
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}
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func shadowURL(provider, cfgItem string) string {
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u, err := url.Parse(cfgItem)
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if err != nil {
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log.Error("Shadowing Password for %v failed: %v", provider, err)
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return cfgItem
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}
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if u.User != nil {
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atIdx := strings.Index(cfgItem, "@")
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if atIdx > 0 {
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colonIdx := strings.LastIndex(cfgItem[:atIdx], ":")
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if colonIdx > 0 {
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return cfgItem[:colonIdx+1] + "******" + cfgItem[atIdx:]
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}
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}
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}
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return cfgItem
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}
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func shadowPassword(provider, cfgItem string) string {
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switch provider {
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case "redis":
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return shadowPasswordKV(cfgItem, ",")
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case "mysql":
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// root:@tcp(localhost:3306)/macaron?charset=utf8
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atIdx := strings.Index(cfgItem, "@")
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if atIdx > 0 {
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colonIdx := strings.Index(cfgItem[:atIdx], ":")
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if colonIdx > 0 {
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return cfgItem[:colonIdx+1] + "******" + cfgItem[atIdx:]
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}
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}
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return cfgItem
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case "postgres":
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// user=jiahuachen dbname=macaron port=5432 sslmode=disable
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if !strings.HasPrefix(cfgItem, "postgres://") {
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return shadowPasswordKV(cfgItem, " ")
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}
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fallthrough
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case "couchbase":
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return shadowURL(provider, cfgItem)
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// postgres://pqgotest:password@localhost/pqgotest?sslmode=verify-full
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// Notice: use shadowURL
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}
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return cfgItem
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}
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// Config show admin config page
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func Config(ctx *context.Context) {
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ctx.Data["Title"] = ctx.Tr("admin.config")
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ctx.Data["PageIsAdmin"] = true
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ctx.Data["PageIsAdminConfig"] = true
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systemSettings, err := system_model.GetAllSettings()
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if err != nil {
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ctx.ServerError("system_model.GetAllSettings", err)
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return
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}
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// All editable settings from UI
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ctx.Data["SystemSettings"] = systemSettings
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ctx.PageData["adminConfigPage"] = true
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ctx.Data["CustomConf"] = setting.CustomConf
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ctx.Data["AppUrl"] = setting.AppURL
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ctx.Data["Domain"] = setting.Domain
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ctx.Data["OfflineMode"] = setting.OfflineMode
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ctx.Data["DisableRouterLog"] = setting.DisableRouterLog
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ctx.Data["RunUser"] = setting.RunUser
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ctx.Data["RunMode"] = util.ToTitleCase(setting.RunMode)
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ctx.Data["GitVersion"] = git.VersionInfo()
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ctx.Data["RepoRootPath"] = setting.RepoRootPath
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ctx.Data["CustomRootPath"] = setting.CustomPath
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ctx.Data["StaticRootPath"] = setting.StaticRootPath
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ctx.Data["LogRootPath"] = setting.LogRootPath
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ctx.Data["ScriptType"] = setting.ScriptType
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ctx.Data["ReverseProxyAuthUser"] = setting.ReverseProxyAuthUser
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ctx.Data["ReverseProxyAuthEmail"] = setting.ReverseProxyAuthEmail
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ctx.Data["SSH"] = setting.SSH
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ctx.Data["LFS"] = setting.LFS
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ctx.Data["Service"] = setting.Service
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ctx.Data["DbCfg"] = setting.Database
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ctx.Data["Webhook"] = setting.Webhook
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ctx.Data["MailerEnabled"] = false
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if setting.MailService != nil {
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ctx.Data["MailerEnabled"] = true
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ctx.Data["Mailer"] = setting.MailService
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}
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ctx.Data["CacheAdapter"] = setting.CacheService.Adapter
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ctx.Data["CacheInterval"] = setting.CacheService.Interval
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ctx.Data["CacheConn"] = shadowPassword(setting.CacheService.Adapter, setting.CacheService.Conn)
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ctx.Data["CacheItemTTL"] = setting.CacheService.TTL
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sessionCfg := setting.SessionConfig
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if sessionCfg.Provider == "VirtualSession" {
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var realSession session.Options
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if err := json.Unmarshal([]byte(sessionCfg.ProviderConfig), &realSession); err != nil {
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log.Error("Unable to unmarshall session config for virtual provider config: %s\nError: %v", sessionCfg.ProviderConfig, err)
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}
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sessionCfg.Provider = realSession.Provider
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sessionCfg.ProviderConfig = realSession.ProviderConfig
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sessionCfg.CookieName = realSession.CookieName
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sessionCfg.CookiePath = realSession.CookiePath
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sessionCfg.Gclifetime = realSession.Gclifetime
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sessionCfg.Maxlifetime = realSession.Maxlifetime
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sessionCfg.Secure = realSession.Secure
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sessionCfg.Domain = realSession.Domain
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}
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sessionCfg.ProviderConfig = shadowPassword(sessionCfg.Provider, sessionCfg.ProviderConfig)
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ctx.Data["SessionConfig"] = sessionCfg
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ctx.Data["Git"] = setting.Git
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type envVar struct {
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Name, Value string
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}
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envVars := map[string]*envVar{}
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if len(os.Getenv("GITEA_WORK_DIR")) > 0 {
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envVars["GITEA_WORK_DIR"] = &envVar{"GITEA_WORK_DIR", os.Getenv("GITEA_WORK_DIR")}
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}
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if len(os.Getenv("GITEA_CUSTOM")) > 0 {
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envVars["GITEA_CUSTOM"] = &envVar{"GITEA_CUSTOM", os.Getenv("GITEA_CUSTOM")}
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}
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ctx.Data["EnvVars"] = envVars
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ctx.Data["Loggers"] = setting.GetLogDescriptions()
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ctx.Data["EnableAccessLog"] = setting.EnableAccessLog
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ctx.Data["AccessLogTemplate"] = setting.AccessLogTemplate
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ctx.Data["DisableRouterLog"] = setting.DisableRouterLog
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ctx.Data["EnableXORMLog"] = setting.EnableXORMLog
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ctx.Data["LogSQL"] = setting.Database.LogSQL
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ctx.HTML(http.StatusOK, tplConfig)
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}
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func ChangeConfig(ctx *context.Context) {
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key := strings.TrimSpace(ctx.FormString("key"))
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if key == "" {
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ctx.JSON(http.StatusOK, map[string]string{
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"redirect": ctx.Req.URL.String(),
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})
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return
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}
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value := ctx.FormString("value")
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version := ctx.FormInt("version")
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if check, ok := changeConfigChecks[key]; ok {
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if err := check(ctx, value); err != nil {
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log.Warn("refused to set setting: %v", err)
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ctx.JSON(http.StatusOK, map[string]string{
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"err": ctx.Tr("admin.config.set_setting_failed", key),
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})
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return
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}
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}
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if err := system_model.SetSetting(ctx, &system_model.Setting{
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SettingKey: key,
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SettingValue: value,
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Version: version,
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}); err != nil {
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log.Error("set setting failed: %v", err)
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ctx.JSON(http.StatusOK, map[string]string{
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"err": ctx.Tr("admin.config.set_setting_failed", key),
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})
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return
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}
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ctx.JSON(http.StatusOK, map[string]interface{}{
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"version": version + 1,
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})
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}
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var changeConfigChecks = map[string]func(ctx *context.Context, newValue string) error{
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system_model.KeyPictureDisableGravatar: func(_ *context.Context, newValue string) error {
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if v, _ := strconv.ParseBool(newValue); setting.OfflineMode && !v {
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return fmt.Errorf("%q should be true when OFFLINE_MODE is true", system_model.KeyPictureDisableGravatar)
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}
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return nil
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},
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system_model.KeyPictureEnableFederatedAvatar: func(_ *context.Context, newValue string) error {
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if v, _ := strconv.ParseBool(newValue); setting.OfflineMode && v {
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return fmt.Errorf("%q cannot be false when OFFLINE_MODE is true", system_model.KeyPictureEnableFederatedAvatar)
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}
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return nil
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},
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}
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