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Improvements to the redirect middleware

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This commit is contained in:
Matthew Holt 2015-04-12 18:13:58 -06:00
parent b7c8afab2f
commit a93db40138
1 changed files with 22 additions and 13 deletions
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35
middleware/redirect/redirect.go
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@ -30,12 +30,12 @@ type Redirect struct {
// ServeHTTP implements the middleware.Handler interface.
func (rd Redirect) ServeHTTP(w http.ResponseWriter, r *http.Request) (int, error) {
for _, rule := range rd.Rules {
if rule.From == "/" {
// Catchall redirect preserves path (TODO: Standardize/formalize this behavior)
http.Redirect(w, r, strings.TrimSuffix(rule.To, "/")+r.URL.Path, rule.Code)
return 0, nil
}
if r.URL.Path == rule.From {
if rule.From == "/" {
// Catchall redirect preserves path (TODO: This behavior should be more standardized...)
http.Redirect(w, r, strings.TrimSuffix(rule.To, "/")+r.URL.Path, rule.Code)
return 0, nil
}
http.Redirect(w, r, rule.To, rule.Code)
return 0, nil
}
@ -50,21 +50,31 @@ func parse(c middleware.Controller) ([]Rule, error) {
var rule Rule
args := c.RemainingArgs()
if len(args) == 1 {
// Only 'To' specified
switch len(args) {
case 1:
// To specified
rule.From = "/"
rule.To = c.Val()
rule.Code = 307 // TODO: Consider 301 instead?
} else if len(args) == 3 {
rule.To = args[0]
rule.Code = http.StatusTemporaryRedirect
case 2:
// To and Code specified
rule.From = "/"
rule.To = args[0]
if code, ok := httpRedirs[args[1]]; !ok {
return redirects, c.Err("Invalid redirect code '" + args[1] + "'")
} else {
rule.Code = code
}
case 3:
// From, To, and Code specified
rule.From = args[0]
rule.To = args[1]
if code, ok := httpRedirs[args[2]]; !ok {
return redirects, c.Err("Invalid redirect code '" + c.Val() + "'")
return redirects, c.Err("Invalid redirect code '" + args[2] + "'")
} else {
rule.Code = code
}
} else {
default:
return redirects, c.ArgErr()
}
@ -92,7 +102,6 @@ var httpRedirs = map[string]int{
"303": 303,
"304": 304,
"305": 305,
"306": 306,
"307": 307,
"308": 308,
}