func redirParse(c *Controller) ([]redirect.Rule, error) {
var redirects []redirect.Rule
for c.Next() {
var rule redirect.Rule
args := c.RemainingArgs()
// Always set the default Code, then overwrite
rule.Code = http.StatusMovedPermanently
switch len(args) {
case 1:
// To specified
rule.From = "/"
rule.To = args[0]
case 2:
// To and Code specified
rule.From = "/"
rule.To = args[0]
if "meta" == args[1] {
rule.Meta = true
} else 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 "meta" == args[2] {
rule.Meta = true
} else if code, ok := httpRedirs[args[2]]; !ok {
return redirects, c.Err("Invalid redirect code '" + args[2] + "'")
} else {
rule.Code = code
}
default:
return redirects, c.ArgErr()
}
if rule.From == rule.To {
return redirects, c.Err("Redirect rule cannot allow From and To arguments to be the same.")
}
redirects = append(redirects, rule)
}
return redirects, nil
}
