pages-server/html/error.go

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package html
import (
"html/template"
"net/http"
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"strconv"
"strings"
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"codeberg.org/codeberg/pages/server/context"
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)
// ReturnErrorPage sets the response status code and writes NotFoundPage to the response body,
// with "%status%" and %message% replaced with the provided statusCode and msg
func ReturnErrorPage(ctx *context.Context, msg string, statusCode int) {
ctx.RespWriter.Header().Set("Content-Type", "text/html; charset=utf-8")
ctx.RespWriter.WriteHeader(statusCode)
msg = generateResponse(msg, statusCode)
_, _ = ctx.RespWriter.Write([]byte(msg))
}
// TODO: use template engine
func generateResponse(msg string, statusCode int) string {
if msg == "" {
msg = strings.ReplaceAll(NotFoundPage,
"%status%",
strconv.Itoa(statusCode)+" "+errorMessage(statusCode))
} else {
msg = strings.ReplaceAll(
strings.ReplaceAll(ErrorPage, "%message%", template.HTMLEscapeString(msg)),
"%status%",
http.StatusText(statusCode))
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}
return msg
}
func errorMessage(statusCode int) string {
message := http.StatusText(statusCode)
switch statusCode {
case http.StatusMisdirectedRequest:
message += " - domain not specified in <code>.domains</code> file"
case http.StatusFailedDependency:
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message += " - target repo/branch doesn't exist or is private"
}
return message
}