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requestbody: Allow overwriting remote address 

An experimental feature, let's see if it's useful.
This commit is contained in:
Matthew Holt 2021-01-11 13:35:12 -07:00
parent 88a38bd00d
commit 0bf2046da7
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1 changed files with 9 additions and 0 deletions
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9
modules/caddyhttp/requestbody/requestbody.go
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@ -29,6 +29,11 @@ func init() {
type RequestBody struct {
// The maximum number of bytes to allow reading from the body by a later handler.
MaxSize int64 `json:"max_size,omitempty"`
// Overwrites the remote address from which the request came. This is destructive;
// handlers later in the chain will not be able to recover the true originating
// address of the request. EXPERIMENTAL: May get changed or removed later.
RemoteAddress string `json:"remote_address,omitempty"`
}
// CaddyModule returns the Caddy module information.
@ -40,6 +45,10 @@ func (RequestBody) CaddyModule() caddy.ModuleInfo {
}
func (rb RequestBody) ServeHTTP(w http.ResponseWriter, r *http.Request, next caddyhttp.Handler) error {
if rb.RemoteAddress != "" {
repl := r.Context().Value(caddy.ReplacerCtxKey).(*caddy.Replacer)
r.RemoteAddr = repl.ReplaceAll(rb.RemoteAddress, "")
}
if r.Body == nil {
return next.ServeHTTP(w, r)
}