74 lines
2.5 KiB
Go
74 lines
2.5 KiB
Go
package web
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import (
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"encoding/json"
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"fmt"
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"net/http"
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"strings"
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blog "github.com/letsencrypt/boulder/log"
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"github.com/letsencrypt/boulder/probs"
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)
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// SendError does a few things that we want for each error response:
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// - Adds both the external and the internal error to a RequestEvent.
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// - If the ProblemDetails provided is a ServerInternalProblem, audit logs the
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// internal error.
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// - Prefixes the Type field of the ProblemDetails with the RFC8555 namespace.
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// - Sends an HTTP response containing the error and an error code to the user.
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//
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// The internal error (ierr) may be nil if no information beyond the
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// ProblemDetails is needed for internal debugging.
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func SendError(
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log blog.Logger,
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response http.ResponseWriter,
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logEvent *RequestEvent,
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prob *probs.ProblemDetails,
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ierr error,
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) {
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// Write the JSON problem response
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response.Header().Set("Content-Type", "application/problem+json")
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if prob.HTTPStatus != 0 {
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response.WriteHeader(prob.HTTPStatus)
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} else {
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// All problems should have an HTTPStatus set, because all of the functions
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// in the probs package which construct a problem set one. A problem details
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// object getting to this point without a status set is an error.
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response.WriteHeader(http.StatusInternalServerError)
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}
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// Suppress logging of the "Your account is temporarily prevented from
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// requesting certificates" error.
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var primaryDetail = prob.Detail
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if prob.Type == probs.PausedProblem {
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primaryDetail = "account/ident pair is paused"
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}
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// Record details to the log event
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logEvent.Error = fmt.Sprintf("%d :: %s :: %s", prob.HTTPStatus, prob.Type, primaryDetail)
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if len(prob.SubProblems) > 0 {
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subDetails := make([]string, len(prob.SubProblems))
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for i, sub := range prob.SubProblems {
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subDetails[i] = fmt.Sprintf("\"%s :: %s :: %s\"", sub.Identifier.Value, sub.Type, sub.Detail)
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}
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logEvent.Error += fmt.Sprintf(" [%s]", strings.Join(subDetails, ", "))
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}
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if ierr != nil {
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logEvent.AddError("%s", ierr)
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}
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// Set the proper namespace for the problem and any sub-problems.
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prob.Type = probs.ProblemType(probs.ErrorNS) + prob.Type
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for i := range prob.SubProblems {
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prob.SubProblems[i].Type = probs.ProblemType(probs.ErrorNS) + prob.SubProblems[i].Type
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}
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problemDoc, err := json.MarshalIndent(prob, "", " ")
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if err != nil {
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log.AuditErrf("Could not marshal error message: %s - %+v", err, prob)
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problemDoc = []byte("{\"detail\": \"Problem marshalling error message.\"}")
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}
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response.Write(problemDoc)
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}
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