mirror of https://github.com/0xERR0R/blocky.git
151 lines
3.8 KiB
Go
151 lines
3.8 KiB
Go
package server
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import (
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"context"
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"fmt"
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"html/template"
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"net"
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"net/http"
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"github.com/0xERR0R/blocky/resolver"
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"github.com/0xERR0R/blocky/api"
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"github.com/0xERR0R/blocky/config"
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"github.com/0xERR0R/blocky/docs"
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"github.com/0xERR0R/blocky/log"
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"github.com/0xERR0R/blocky/model"
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"github.com/0xERR0R/blocky/util"
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"github.com/0xERR0R/blocky/web"
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"github.com/go-chi/chi/v5"
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"github.com/go-chi/chi/v5/middleware"
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"github.com/miekg/dns"
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)
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const (
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dohMessageLimit = 512
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contentTypeHeader = "content-type"
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dnsContentType = "application/dns-message"
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htmlContentType = "text/html; charset=UTF-8"
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yamlContentType = "text/yaml"
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)
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func (s *Server) createOpenAPIInterfaceImpl() (impl api.StrictServerInterface, err error) {
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bControl, err := resolver.GetFromChainWithType[api.BlockingControl](s.queryResolver)
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if err != nil {
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return nil, fmt.Errorf("no blocking API implementation found %w", err)
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}
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refresher, err := resolver.GetFromChainWithType[api.ListRefresher](s.queryResolver)
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if err != nil {
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return nil, fmt.Errorf("no refresh API implementation found %w", err)
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}
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cacheControl, err := resolver.GetFromChainWithType[api.CacheControl](s.queryResolver)
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if err != nil {
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return nil, fmt.Errorf("no cache API implementation found %w", err)
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}
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return api.NewOpenAPIInterfaceImpl(bControl, s, refresher, cacheControl), nil
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}
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func (s *Server) Query(
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ctx context.Context, serverHost string, clientIP net.IP, question string, qType dns.Type,
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) (*model.Response, error) {
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msg := util.NewMsgWithQuestion(question, qType)
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clientID := extractClientIDFromHost(serverHost)
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ctx, req := newRequest(ctx, clientIP, clientID, model.RequestProtocolTCP, msg)
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return s.resolve(ctx, req)
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}
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func configureHTTPRouter(router chi.Router, cfg *config.Config) {
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configureDebugHandler(router)
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configureDocsHandler(router)
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configureStaticAssetsHandler(router)
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configureRootHandler(cfg, router)
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}
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func configureDocsHandler(router chi.Router) {
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router.Get("/docs/openapi.yaml", func(writer http.ResponseWriter, request *http.Request) {
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writer.Header().Set(contentTypeHeader, yamlContentType)
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_, err := writer.Write([]byte(docs.OpenAPI))
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logAndResponseWithError(err, "can't write OpenAPI definition file: ", writer)
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})
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}
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func configureStaticAssetsHandler(router chi.Router) {
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assets, err := web.Assets()
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util.FatalOnError("unable to load static asset files", err)
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fs := http.FileServer(http.FS(assets))
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router.Handle("/static/*", http.StripPrefix("/static/", fs))
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}
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func configureRootHandler(cfg *config.Config, router chi.Router) {
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router.Get("/", func(writer http.ResponseWriter, request *http.Request) {
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writer.Header().Set(contentTypeHeader, htmlContentType)
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t := template.New("index")
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_, _ = t.Parse(web.IndexTmpl)
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type HandlerLink struct {
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URL string
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Title string
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}
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type PageData struct {
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Links []HandlerLink
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Version string
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BuildTime string
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}
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pd := PageData{
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Links: nil,
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Version: util.Version,
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BuildTime: util.BuildTime,
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}
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pd.Links = []HandlerLink{
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{
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URL: "/docs/openapi.yaml",
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Title: "Rest API Documentation (OpenAPI)",
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},
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{
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URL: "/static/rapidoc.html",
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Title: "Interactive Rest API Documentation (RapiDoc)",
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},
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{
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URL: "/debug/",
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Title: "Go Profiler",
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},
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}
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if cfg.Prometheus.Enable {
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pd.Links = append(pd.Links, HandlerLink{
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URL: cfg.Prometheus.Path,
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Title: "Prometheus endpoint",
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})
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}
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err := t.Execute(writer, pd)
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logAndResponseWithError(err, "can't write index template: ", writer)
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})
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}
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func logAndResponseWithError(err error, message string, writer http.ResponseWriter) {
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if err != nil {
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log.Log().Error(message, log.EscapeInput(err.Error()))
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http.Error(writer, err.Error(), http.StatusInternalServerError)
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}
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}
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func configureDebugHandler(router chi.Router) {
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router.Mount("/debug", middleware.Profiler())
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}
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