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caddyhttp: Fix redir html status code, improve flow (#3987)

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* Fix html redir code, improve flow

* Fix integer check error and add tests
This commit is contained in:
Tyler Kropp 2021-01-28 14:59:50 -05:00 committed by GitHub
parent e2c5c28597
commit bef80cd806
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 139 additions and 7 deletions
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24
caddyconfig/httpcaddyfile/builtins.go
View file

@ -22,6 +22,7 @@ import (
"io/ioutil"
"net/http"
"reflect"
"strconv"
"strings"
"github.com/caddyserver/caddy/v2"
@ -462,14 +463,14 @@ func parseRedir(h Helper) (caddyhttp.MiddlewareHandler, error) {
if h.NextArg() {
code = h.Val()
}
if code == "permanent" {
code = "301"
}
if code == "temporary" || code == "" {
code = "302"
}
var body string
if code == "html" {
switch code {
case "permanent":
code = "301"
case "temporary", "":
code = "302"
case "html":
// Script tag comes first since that will better imitate a redirect in the browser's
// history, but the meta tag is a fallback for most non-JS clients.
const metaRedir = `<!DOCTYPE html>
@ -484,6 +485,15 @@ func parseRedir(h Helper) (caddyhttp.MiddlewareHandler, error) {
`
safeTo := html.EscapeString(to)
body = fmt.Sprintf(metaRedir, safeTo, safeTo, safeTo, safeTo)
code = "302"
default:
codeInt, err := strconv.Atoi(code)
if err != nil {
return nil, h.Errf("Not a supported redir code type or not valid integer: '%s'", code)
}
if codeInt < 300 || codeInt > 399 {
return nil, h.Errf("Redir code not in the 3xx range: '%v'", codeInt)
}
}
return caddyhttp.StaticResponse{

122
caddyconfig/httpcaddyfile/builtins_test.go
View file

@ -51,3 +51,125 @@ func TestLogDirectiveSyntax(t *testing.T) {
}
}
}
func TestRedirDirectiveSyntax(t *testing.T) {
for i, tc := range []struct {
input string
expectError bool
}{
{
input: `:8080 {
redir :8081
}`,
expectError: false,
},
{
input: `:8080 {
redir * :8081
}`,
expectError: false,
},
{
input: `:8080 {
redir /api/* :8081 300
}`,
expectError: false,
},
{
input: `:8080 {
redir :8081 300
}`,
expectError: false,
},
{
input: `:8080 {
redir /api/* :8081 399
}`,
expectError: false,
},
{
input: `:8080 {
redir :8081 399
}`,
expectError: false,
},
{
input: `:8080 {
redir /old.html /new.html
}`,
expectError: false,
},
{
input: `:8080 {
redir /old.html /new.html temporary
}`,
expectError: false,
},
{
input: `:8080 {
redir https://example.com{uri} permanent
}`,
expectError: false,
},
{
input: `:8080 {
redir /old.html /new.html permanent
}`,
expectError: false,
},
{
input: `:8080 {
redir /old.html /new.html html
}`,
expectError: false,
},
{
input: `:8080 {
redir /old.html /new.html htlm
}`,
expectError: true,
},
{
input: `:8080 {
redir * :8081 200
}`,
expectError: true,
},
{
input: `:8080 {
redir * :8081 400
}`,
expectError: true,
},
{
input: `:8080 {
redir * :8081 temp
}`,
expectError: true,
},
{
input: `:8080 {
redir * :8081 perm
}`,
expectError: true,
},
{
input: `:8080 {
redir * :8081 php
}`,
expectError: true,
},
} {
adapter := caddyfile.Adapter{
ServerType: ServerType{},
}
_, _, err := adapter.Adapt([]byte(tc.input), nil)
if err != nil != tc.expectError {
t.Errorf("Test %d error expectation failed Expected: %v, got %s", i, tc.expectError, err)
continue
}
}
}