112 lines
2.8 KiB
Go
112 lines
2.8 KiB
Go
package home
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import (
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"context"
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_ "embed"
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"html/template"
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"net/http"
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"strings"
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"github.com/FAU-CDI/wisski-distillery/internal/dis/component"
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"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/assets"
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"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templating"
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"github.com/FAU-CDI/wisski-distillery/internal/status"
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"github.com/tkw1536/pkglib/httpx"
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)
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//go:embed "public.html"
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var publicHTML []byte
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var publicTemplate = templating.Parse[publicContext](
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"public.html", publicHTML, nil,
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templating.Assets(assets.AssetsDefault),
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)
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//go:embed "about.html"
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var aboutHTML string
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var aboutTemplate = template.Must(template.New("about.html").Parse(aboutHTML))
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// aboutContext is passed to about.html
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type aboutContext struct {
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Instances []status.WissKI // list of WissKI Instancaes
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Logo template.HTML
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SelfRedirect string
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}
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// publicCOntext is passed to public.html
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type publicContext struct {
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templating.RuntimeFlags
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aboutContext
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ListEnabled bool // is the list of instances enabled?
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ListTitle string // what is the title of the list of instances?
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About template.HTML
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}
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const logoHTML = template.HTML(`<img src="/logo.svg" alt="WissKI Distillery Logo" class="biglogo">`)
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// ShouldShowList determines if the given request should show a WissKI list
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func (home *Home) ShouldShowList(r *http.Request) bool {
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allowPrivate := home.Config.Home.List.Private.Value
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allowPublic := home.Config.Home.List.Public.Value
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if allowPrivate == allowPublic {
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return allowPrivate
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}
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user, _ := home.Dependencies.Auth.UserOf(r)
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if user == nil {
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return allowPublic
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} else {
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return allowPrivate
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}
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}
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func (home *Home) publicHandler(ctx context.Context) http.Handler {
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title := home.Config.Home.Title
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tpl := publicTemplate.Prepare(
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home.Dependencies.Templating,
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// set title and menu item
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templating.Title(title),
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templating.Crumbs(
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component.MenuItem{Title: title, Path: "/"},
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),
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)
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about := home.Dependencies.Templating.GetCustomizable(aboutTemplate)
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return tpl.HTMLHandler(func(r *http.Request) (pc publicContext, err error) {
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// only act on the root path!
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if strings.TrimSuffix(r.URL.Path, "/") != "" {
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return pc, httpx.ErrNotFound
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}
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// get a builder
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var builder strings.Builder
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// prepare about
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pc.aboutContext.Logo = logoHTML
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pc.aboutContext.Instances = home.homeInstances.Get(nil)
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pc.aboutContext.SelfRedirect = home.Config.Home.SelfRedirect.String()
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// render the about template
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if err := about.Execute(&builder, pc.aboutContext); err != nil {
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return pc, nil
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}
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// and return about!
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pc.About = template.HTML(builder.String())
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// check if we should show the list of WissKIs
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pc.ListEnabled = home.ShouldShowList(r)
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// title of the list
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pc.ListTitle = home.Config.Home.List.Title
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return
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})
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}
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