72 lines
2.0 KiB
Go
72 lines
2.0 KiB
Go
package exceptions
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import (
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"encoding/json"
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"errors"
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"fmt"
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"net/http"
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)
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func HandlerJSON(fallback HandlerFunc) HandlerFunc {
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return func(e Exception, w http.ResponseWriter, r *http.Request) {
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j, err := json.Marshal(e)
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if err != nil {
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e.Err = errors.Join(fmt.Errorf("marshalling Exception struct: %s", e.Error()), e.Err)
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fallback(e, w, r)
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return
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}
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w.Header().Set("Content-Type", "application/json")
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w.WriteHeader(e.Status)
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_, err = w.Write(j)
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if err != nil {
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e.Err = errors.Join(fmt.Errorf("writing JSON response to body: %s", e.Error()), e.Err)
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HandlerText(e, w, r)
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return
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}
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}
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}
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var _ HandlerFunc = HandlerJSON(HandlerText)
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func HandlerText(e Exception, w http.ResponseWriter, r *http.Request) {
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w.Header().Set("Content-Type", "text/plain")
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w.WriteHeader(e.Status)
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_, err := w.Write([]byte(fmt.Sprintf(
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"Status: %3d\n"+
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"Code: %s"+
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"Message: %s\n"+
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"Err: %s\n"+
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"Severity: %s\n\n"+
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"%+v\n\n"+
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"%#v",
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e.Status,
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e.Code,
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e.Message,
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e.Err,
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e.Severity,
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e, e,
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)))
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if err != nil {
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_, _ = w.Write([]byte(fmt.Sprintf(
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"Ok, what should we do at this point? You fucked up so bad that this message " +
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"shouldn't even be able to be sent in the first place. If you are a normal user I'm " +
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"so sorry for you to be reading this. If you're a developer, go fix your ResponseWriter " +
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"implementation, because this should never happen in any normal codebase. " +
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"I hope for the life of anyone you love you don't use this message in some " +
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"error checking or any sort of API-contract, because there will be no more hope " +
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"for you or your project. May God or any other or any other divinity that you may " +
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"or may not believe be with you when trying to fix this mistake, you will need it.",
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// If someone use this as part of the API-contract I'll not even be surprised.
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// So any change to this message is still considered a breaking change.
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)))
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}
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}
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var _ HandlerFunc = HandlerText
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