mirror of
https://github.com/elyby/chrly.git
synced 2024-12-25 14:39:55 +05:30
103 lines
2.7 KiB
Go
103 lines
2.7 KiB
Go
package http
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import (
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"context"
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"encoding/json"
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"net/http"
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"os"
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"os/signal"
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"syscall"
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"time"
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"github.com/gorilla/mux"
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"github.com/mono83/slf"
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"github.com/mono83/slf/wd"
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"ely.by/chrly/internal/version"
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)
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func StartServer(server *http.Server, logger slf.Logger) {
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logger.Debug("Chrly :v (:c)", wd.StringParam("v", version.Version()), wd.StringParam("c", version.Commit()))
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ctx, cancel := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM, os.Kill)
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defer cancel()
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srvErr := make(chan error, 1)
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go func() {
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logger.Info("Starting the server, HTTP on: :addr", wd.StringParam("addr", server.Addr))
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srvErr <- server.ListenAndServe()
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close(srvErr)
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}()
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select {
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case err := <-srvErr:
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logger.Emergency("Error in main(): :err", wd.ErrParam(err))
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case <-ctx.Done():
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logger.Info("Got stop signal, starting graceful shutdown: :ctx")
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stopCtx, cancelFunc := context.WithTimeout(context.Background(), 3*time.Second)
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defer cancelFunc()
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_ = server.Shutdown(stopCtx)
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logger.Info("Graceful shutdown succeed, exiting")
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}
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}
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type Authenticator interface {
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Authenticate(req *http.Request) error
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}
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// The current middleware implementation doesn't check the scope assigned to the token.
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// For now there is only one scope and at this moment I don't want to spend time on it
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func CreateAuthenticationMiddleware(checker Authenticator) mux.MiddlewareFunc {
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return func(handler http.Handler) http.Handler {
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return http.HandlerFunc(func(resp http.ResponseWriter, req *http.Request) {
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err := checker.Authenticate(req)
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if err != nil {
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apiForbidden(resp, err.Error())
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return
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}
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handler.ServeHTTP(resp, req)
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})
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}
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}
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func NotFoundHandler(response http.ResponseWriter, _ *http.Request) {
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data, _ := json.Marshal(map[string]string{
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"status": "404",
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"message": "Not Found",
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})
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response.Header().Set("Content-Type", "application/json")
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response.WriteHeader(http.StatusNotFound)
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_, _ = response.Write(data)
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}
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func apiBadRequest(resp http.ResponseWriter, errorsPerField map[string][]string) {
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resp.WriteHeader(http.StatusBadRequest)
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resp.Header().Set("Content-Type", "application/json")
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result, _ := json.Marshal(map[string]interface{}{
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"errors": errorsPerField,
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})
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_, _ = resp.Write(result)
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}
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var internalServerError = []byte("Internal server error")
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func apiServerError(resp http.ResponseWriter, err error) {
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resp.WriteHeader(http.StatusInternalServerError)
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resp.Header().Set("Content-Type", "text/plain")
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_, _ = resp.Write(internalServerError)
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}
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func apiForbidden(resp http.ResponseWriter, reason string) {
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resp.WriteHeader(http.StatusForbidden)
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resp.Header().Set("Content-Type", "application/json")
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result, _ := json.Marshal(map[string]interface{}{
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"error": reason,
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})
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_, _ = resp.Write(result)
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}
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