generated from templates/go-generic
Dan Anglin
9cb1f8ed4b
- Add a middleware to add an ID for every request for the purpose of cross referencing requests and errors. - Add functions for handling client and server errors.
56 lines
1.7 KiB
Go
56 lines
1.7 KiB
Go
package server
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import (
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"crypto/rand"
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"encoding/hex"
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"fmt"
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"log/slog"
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"net/http"
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"codeflow.dananglin.me.uk/apollo/indieauth-server/internal/config"
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)
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func newMux(cfg config.Config) *http.ServeMux {
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mux := http.NewServeMux()
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mux.Handle("GET /.well-known/oauth-authorization-server", setRequestID(metadataHandler(cfg.Domain)))
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return mux
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}
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func setRequestID(next http.Handler) http.Handler {
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return http.HandlerFunc(func(writer http.ResponseWriter, request *http.Request) {
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requestID := "UNKNOWN"
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id := make([]byte, 16)
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if _, err := rand.Read(id); err != nil {
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slog.Error("unable to create the request ID.", "error", err.Error())
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} else {
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requestID = hex.EncodeToString(id)
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}
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writer.Header().Set("X-Request-ID", requestID)
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next.ServeHTTP(writer, request)
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})
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}
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func metadataHandler(domain string) http.Handler {
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return http.HandlerFunc(func(writer http.ResponseWriter, _ *http.Request) {
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metadata := struct {
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Issuer string `json:"issuer"`
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AuthorizationEndpoint string `json:"authorization_endpoint"`
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TokenEndpoint string `json:"token_endpoint"`
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ServiceDocumentation string `json:"service_documentation"`
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CodeChallengeMethodsSupported []string `json:"code_challenge_methods_supported"`
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}{
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Issuer: fmt.Sprintf("https://%s/", domain),
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AuthorizationEndpoint: fmt.Sprintf("https://%s/auth", domain),
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TokenEndpoint: fmt.Sprintf("https://%s/token", domain),
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ServiceDocumentation: "https://indieauth.spec.indieweb.org",
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CodeChallengeMethodsSupported: []string{"S256"},
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}
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sendResponse(writer, http.StatusOK, metadata)
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})
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}
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