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web.go
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/
web.go
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/*
*
* Copyright 2022 puzzleweb authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package puzzleweb
import (
"context"
"net"
"net/http"
"time"
adminservice "github.com/dvaumoron/puzzleweb/admin/service"
"github.com/dvaumoron/puzzleweb/common"
"github.com/dvaumoron/puzzleweb/common/config"
"github.com/dvaumoron/puzzleweb/common/config/parser"
"github.com/dvaumoron/puzzleweb/common/log"
"github.com/dvaumoron/puzzleweb/locale"
"github.com/dvaumoron/puzzleweb/templates"
"github.com/gin-gonic/gin"
"go.opentelemetry.io/contrib/instrumentation/github.com/gin-gonic/gin/otelgin"
"go.uber.org/zap"
"golang.org/x/sync/errgroup"
)
const siteName = "Site"
const unknownUserKey = "ErrorUnknownUser"
type Site struct {
loggerGetter log.LoggerGetter
localesManager common.LocalesManager
authService adminservice.AuthService
timeOut time.Duration
root Page
adders []common.DataAdder
}
func NewSite(configExtracter config.BaseConfigExtracter, localesManager common.LocalesManager, settingsManager *SettingsManager) *Site {
adminConfig := configExtracter.ExtractAdminConfig()
root := MakeStaticPage("root", adminservice.PublicGroupId, "index")
root.AddSubPage(newLoginPage(configExtracter.ExtractLoginConfig(), settingsManager))
root.AddSubPage(newAdminPage(adminConfig))
root.AddSubPage(newSettingsPage(config.MakeServiceConfig(configExtracter, settingsManager)))
root.AddSubPage(newProfilePage(configExtracter.ExtractProfileConfig()))
return &Site{
loggerGetter: configExtracter.GetLoggerGetter(), localesManager: localesManager,
authService: adminConfig.Service, timeOut: configExtracter.GetServiceTimeOut(), root: root,
}
}
func (site *Site) AddPage(page Page) {
site.root.AddSubPage(page)
}
func (site *Site) AddStaticPages(pageGroup parser.StaticPagesConfig) bool {
return site.root.AddStaticPages(pageGroup)
}
func (site *Site) GetPage(name string) (Page, bool) {
return site.root.GetSubPage(name)
}
func (site *Site) GetPageWithPath(path string) (Page, bool) {
return site.root.GetSubPageWithPath(path)
}
func (site *Site) AddDefaultData(adder common.DataAdder) {
site.adders = append(site.adders, adder)
}
func (site *Site) manageTimeOut(c *gin.Context) {
newCtx, cancel := context.WithTimeout(c.Request.Context(), site.timeOut)
defer cancel()
c.Request = c.Request.WithContext(newCtx)
c.Next()
}
func (site *Site) initEngine(siteConfig config.SiteConfig) *gin.Engine {
engine := gin.New()
engine.Use(site.manageTimeOut, otelgin.Middleware(config.WebKey), gin.Recovery())
if memorySize := siteConfig.MaxMultipartMemory; memorySize != 0 {
engine.MaxMultipartMemory = memorySize
}
engine.HTMLRender = templates.NewServiceRender(siteConfig.ExtractTemplateConfig())
engine.StaticFS("/static", siteConfig.StaticFileSystem)
engine.StaticFileFS(config.DefaultFavicon, siteConfig.FaviconPath, siteConfig.StaticFileSystem)
engine.Use(func(c *gin.Context) {
c.Set(siteName, site)
}, makeSessionManager(siteConfig.ExtractSessionConfig()).manage)
if localesManager := site.localesManager; localesManager.GetMultipleLang() {
engine.GET("/changeLang", common.CreateRedirect(changeLangRedirecter))
for lang, langPicturePath := range siteConfig.LangPicturePaths {
// allow modified time check (instead of always sending same data)
engine.StaticFileFS("/langPicture/"+lang, langPicturePath, siteConfig.StaticFileSystem)
}
}
site.root.Widget.LoadInto(engine)
engine.NoRoute(common.CreateRedirectString(siteConfig.Page404Url))
return engine
}
func (site *Site) Run(siteConfig config.SiteConfig) error {
return site.initEngine(siteConfig).Run(common.CheckPort(siteConfig.Port))
}
func (site *Site) RunListener(siteConfig config.SiteConfig, listener net.Listener) error {
return site.initEngine(siteConfig).RunListener(listener)
}
type SiteAndConfig struct {
Site *Site
Config config.SiteConfig
}
func Run(ginLogger *zap.Logger, sites ...SiteAndConfig) error {
var g errgroup.Group
for _, siteAndConfig := range sites {
port := common.CheckPort(siteAndConfig.Config.Port)
handler := siteAndConfig.Site.initEngine(siteAndConfig.Config).Handler()
g.Go(func() error {
server := &http.Server{Addr: port, Handler: handler}
return server.ListenAndServe()
})
}
return g.Wait()
}
func changeLangRedirecter(c *gin.Context) string {
getSite(c).localesManager.SetLangCookie(c.Query(locale.LangName), c)
return c.Query(common.RedirectName)
}