145 lines
3.4 KiB
Go
145 lines
3.4 KiB
Go
package main
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import (
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"embed"
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"encoding/json"
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"fmt"
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"io"
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"net/http"
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"strings"
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"github.com/go-chi/chi"
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)
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//go:embed dist/*
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var fs embed.FS
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type entity struct {
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AvatarURL *string `json:"avatar_url"`
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IconURL *string `json:"icon_url"`
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Description *string `json:"description"`
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Color *string `json:"color"`
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}
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var baseURL = "https://api.pluralkit.me/v2"
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var version = "dev"
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var versionJS string
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const defaultEmbed = `<meta property="og:title" content="PluralKit | web dashboard" /> <meta name="theme-color" content="#da9317">`
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func main() {
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versionJS = "<script>window.pluralkitVersion = '" + version + "'</script>"
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r := chi.NewRouter()
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r.Use(func(next http.Handler) http.Handler {
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return http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) {
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rw.Header().Set("X-PluralKit-Version", version)
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next.ServeHTTP(rw, r)
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})
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})
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r.NotFound(notFoundHandler)
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r.Get("/profile/{type}/{id}", func(rw http.ResponseWriter, r *http.Request) {
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defer func() {
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if a := recover(); a != nil {
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notFoundHandler(rw, r)
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return
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}
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}()
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createEmbed(rw, r)
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})
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http.ListenAndServe(":8080", r)
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}
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func notFoundHandler(rw http.ResponseWriter, r *http.Request) {
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var data []byte
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var err error
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// lol
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if strings.HasSuffix(r.URL.Path, ".js") {
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data, err = fs.ReadFile("dist" + r.URL.Path)
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rw.Header().Add("content-type", "application/javascript")
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} else if strings.HasSuffix(r.URL.Path, ".css") {
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data, err = fs.ReadFile("dist" + r.URL.Path)
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rw.Header().Add("content-type", "text/css")
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} else if strings.HasSuffix(r.URL.Path, ".map") {
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data, err = fs.ReadFile("dist" + r.URL.Path)
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} else {
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data, err = fs.ReadFile("dist/index.html")
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rw.Header().Add("content-type", "text/html")
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data = []byte(strings.Replace(string(data), `<!-- extra data -->`, defaultEmbed+versionJS, 1))
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}
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if err != nil {
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panic(err)
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}
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rw.Write(data)
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}
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// explanation for createEmbed:
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// we don't care about errors, we just want to return a HTML page as soon as possible
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// `panic(nil)` is caught by upstream, which then returns the raw HTML page
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func createEmbed(rw http.ResponseWriter, r *http.Request) {
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entityType := chi.URLParam(r, "type")
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id := chi.URLParam(r, "id")
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var path string
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switch entityType {
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case "s":
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path = "/systems/" + id
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case "m":
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path = "/members/" + id
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case "g":
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path = "/groups/" + id
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default:
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panic(nil)
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}
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res, err := http.Get(baseURL + path)
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if err != nil {
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panic(nil)
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}
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if res.StatusCode != 200 {
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panic(nil)
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}
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var data entity
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body, _ := io.ReadAll(res.Body)
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err = json.Unmarshal(body, &data)
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if err != nil {
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panic(nil)
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}
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text := fmt.Sprintf(`<link type="application/json+oembed" href="%s/%s/oembed.json" />%s`, baseURL, path, "\n")
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if data.AvatarURL != nil {
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text += fmt.Sprintf(`<meta content='%s' property='og:image'>%s`, *data.AvatarURL, "\n")
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} else if data.IconURL != nil {
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text += fmt.Sprintf(`<meta content='%s' property='og:image'>%s`, *data.IconURL, "\n")
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}
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if data.Description != nil {
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text += fmt.Sprintf(`<meta content="%s" property="og:description">%s`, *data.Description, "\n")
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}
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if data.Color != nil {
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text += fmt.Sprintf(`<meta name="theme-color" content="#%s">%s`, *data.Color, "\n")
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}
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html, err := fs.ReadFile("dist/index.html")
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if err != nil {
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panic(nil)
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}
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html = []byte(strings.Replace(string(html), `<!-- extra data -->`, text+versionJS, 1))
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rw.Header().Add("content-type", "text/html")
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rw.Write(html)
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}
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