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Code Issues 8 Releases Wiki Polls Activity

Use route rather than use thus reducing the number of stack frames (#15301)

Browse Source 
Since the move to Chi the number of stack frames has proliferated somewhat catastrophically and we're up to 96 frames with multiple tests of the url outside of a trie which is inefficient.

This PR reduces the number of stack frames by 6 through careful use of Route, moves Captcha into its own router so that it only fires on Captcha routes, similarly for avatars and repo-avatars.

The robots.txt, / and apple-touch-icon.png are moved out of requiring Contexter.

It moves access logger higher in the stack frame because there is no reason why it can't be higher.

Extract from #15186
Contains #15292
mj-v1.18.3
zeripath 3 years ago committed by GitHub
parent ab77a24f18
commit 47fd156936
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 57 additions and 46 deletions
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6
modules/context/context.go
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@ -692,6 +692,7 @@ func Contexter() func(next http.Handler) http.Handler {
log.Debug("Session ID: %s", ctx.Session.ID())
log.Debug("CSRF Token: %v", ctx.Data["CsrfToken"])
// FIXME: do we really always need these setting? There should be someway to have to avoid having to always set these
ctx.Data["IsLandingPageHome"] = setting.LandingPageURL == setting.LandingPageHome
ctx.Data["IsLandingPageExplore"] = setting.LandingPageURL == setting.LandingPageExplore
ctx.Data["IsLandingPageOrganizations"] = setting.LandingPageURL == setting.LandingPageOrganizations
@ -708,6 +709,11 @@ func Contexter() func(next http.Handler) http.Handler {
ctx.Data["ManifestData"] = setting.ManifestData
ctx.Data["UnitWikiGlobalDisabled"] = models.UnitTypeWiki.UnitGlobalDisabled()
ctx.Data["UnitIssuesGlobalDisabled"] = models.UnitTypeIssues.UnitGlobalDisabled()
ctx.Data["UnitPullsGlobalDisabled"] = models.UnitTypePullRequests.UnitGlobalDisabled()
ctx.Data["UnitProjectsGlobalDisabled"] = models.UnitTypeProjects.UnitGlobalDisabled()
ctx.Data["i18n"] = locale
ctx.Data["Tr"] = i18n.Tr
ctx.Data["Lang"] = locale.Language()

4
routers/api/v1/api.go
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@ -572,10 +572,6 @@ func Routes() *web.Route {
}
m.Use(context.APIContexter())
if setting.EnableAccessLog {
m.Use(context.AccessLogger())
}
m.Use(context.ToggleAPI(&context.ToggleOptions{
SignInRequired: setting.Service.RequireSignInView,
}))

93
routers/routes/web.go
Unescape View File

@ -89,6 +89,9 @@ func commonMiddlewares() []func(http.Handler) http.Handler {
handlers = append(handlers, LoggerHandler(setting.RouterLogLevel))
}
}
if setting.EnableAccessLog {
handlers = append(handlers, context.AccessLogger())
}
handlers = append(handlers, func(next http.Handler) http.Handler {
return http.HandlerFunc(func(resp http.ResponseWriter, req *http.Request) {
@ -128,9 +131,9 @@ func NormalRoutes() *web.Route {
// WebRoutes returns all web routes
func WebRoutes() *web.Route {
r := web.NewRoute()
routes := web.NewRoute()
r.Use(session.Sessioner(session.Options{
routes.Use(session.Sessioner(session.Options{
Provider: setting.SessionConfig.Provider,
ProviderConfig: setting.SessionConfig.ProviderConfig,
CookieName: setting.SessionConfig.CookieName,
@ -141,14 +144,17 @@ func WebRoutes() *web.Route {
Domain: setting.SessionConfig.Domain,
}))
r.Use(Recovery())
routes.Use(Recovery())
r.Use(public.Custom(
// TODO: we should consider if there is a way to mount these using r.Route as at present
// these two handlers mean that every request has to hit these "filesystems" twice
// before finally getting to the router. It allows them to override any matching router below.
routes.Use(public.Custom(
&public.Options{
SkipLogging: setting.DisableRouterLog,
},
))
r.Use(public.Static(
routes.Use(public.Static(
&public.Options{
Directory: path.Join(setting.StaticRootPath, "public"),
SkipLogging: setting.DisableRouterLog,
@ -156,78 +162,81 @@ func WebRoutes() *web.Route {
},
))
r.Use(storageHandler(setting.Avatar.Storage, "avatars", storage.Avatars))
r.Use(storageHandler(setting.RepoAvatar.Storage, "repo-avatars", storage.RepoAvatars))
// We use r.Route here over r.Use because this prevents requests that are not for avatars having to go through this additional handler
routes.Route("/avatars", "GET, HEAD", storageHandler(setting.Avatar.Storage, "avatars", storage.Avatars))
routes.Route("/repo-avatars", "GET, HEAD", storageHandler(setting.RepoAvatar.Storage, "repo-avatars", storage.RepoAvatars))
// for health check - doeesn't need to be passed through gzip handler
routes.Head("/", func(w http.ResponseWriter, req *http.Request) {
w.WriteHeader(http.StatusOK)
})
// this png is very likely to always be below the limit for gzip so it doesn't need to pass through gzip
routes.Get("/apple-touch-icon.png", func(w http.ResponseWriter, req *http.Request) {
http.Redirect(w, req, path.Join(setting.StaticURLPrefix, "img/apple-touch-icon.png"), 301)
})
gob.Register(&u2f.Challenge{})
common := []interface{}{}
if setting.EnableGzip {
h, err := gziphandler.GzipHandlerWithOpts(gziphandler.MinSize(GzipMinSize))
if err != nil {
log.Fatal("GzipHandlerWithOpts failed: %v", err)
}
r.Use(h)
common = append(common, h)
}
mailer.InitMailRender(templates.Mailer())
if setting.Service.EnableCaptcha {
r.Use(captcha.Captchaer(context.GetImageCaptcha()))
}
// Removed: toolbox.Toolboxer middleware will provide debug informations which seems unnecessary
r.Use(context.Contexter())
// GetHead allows a HEAD request redirect to GET if HEAD method is not defined for that route
r.Use(middleware.GetHead)
if setting.EnableAccessLog {
r.Use(context.AccessLogger())
// The captcha http.Handler should only fire on /captcha/* so we can just mount this on that url
routes.Route("/captcha/*", "GET,HEAD", append(common, captcha.Captchaer(context.GetImageCaptcha()))...)
}
r.Use(user.GetNotificationCount)
r.Use(repo.GetActiveStopwatch)
r.Use(func(ctx *context.Context) {
ctx.Data["UnitWikiGlobalDisabled"] = models.UnitTypeWiki.UnitGlobalDisabled()
ctx.Data["UnitIssuesGlobalDisabled"] = models.UnitTypeIssues.UnitGlobalDisabled()
ctx.Data["UnitPullsGlobalDisabled"] = models.UnitTypePullRequests.UnitGlobalDisabled()
ctx.Data["UnitProjectsGlobalDisabled"] = models.UnitTypeProjects.UnitGlobalDisabled()
})
// for health check
r.Head("/", func(w http.ResponseWriter, req *http.Request) {
w.WriteHeader(http.StatusOK)
})
if setting.HasRobotsTxt {
r.Get("/robots.txt", func(w http.ResponseWriter, req *http.Request) {
routes.Get("/robots.txt", append(common, func(w http.ResponseWriter, req *http.Request) {
filePath := path.Join(setting.CustomPath, "robots.txt")
fi, err := os.Stat(filePath)
if err == nil && httpcache.HandleTimeCache(req, w, fi) {
return
}
http.ServeFile(w, req, filePath)
})
})...)
}
r.Get("/apple-touch-icon.png", func(w http.ResponseWriter, req *http.Request) {
http.Redirect(w, req, path.Join(setting.StaticURLPrefix, "img/apple-touch-icon.png"), 301)
})
// prometheus metrics endpoint
// prometheus metrics endpoint - do not need to go through contexter
if setting.Metrics.Enabled {
c := metrics.NewCollector()
prometheus.MustRegister(c)
r.Get("/metrics", routers.Metrics)
routes.Get("/metrics", append(common, routers.Metrics)...)
}
// Removed: toolbox.Toolboxer middleware will provide debug informations which seems unnecessary
common = append(common, context.Contexter())
// GetHead allows a HEAD request redirect to GET if HEAD method is not defined for that route
common = append(common, middleware.GetHead)
if setting.API.EnableSwagger {
// Note: The route moved from apiroutes because it's in fact want to render a web page
r.Get("/api/swagger", misc.Swagger) // Render V1 by default
routes.Get("/api/swagger", append(common, misc.Swagger)...) // Render V1 by default
}
RegisterRoutes(r)
// TODO: These really seem like things that could be folded into Contexter or as helper functions
common = append(common, user.GetNotificationCount)
common = append(common, repo.GetActiveStopwatch)
return r
others := web.NewRoute()
for _, middle := range common {
others.Use(middle)
}
RegisterRoutes(others)
routes.Mount("", others)
return routes
}
func goGet(ctx *context.Context) {

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