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caddyfile.go
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caddyfile.go
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package waf
import (
"github.com/caddyserver/caddy/v2/caddyconfig/caddyfile"
"github.com/caddyserver/caddy/v2/caddyconfig/httpcaddyfile"
"github.com/caddyserver/caddy/v2/modules/caddyhttp"
"strconv"
)
func init() {
httpcaddyfile.RegisterHandlerDirective("waf", parseCaddyfile)
}
// UnmarshalCaddyfile
func (w *CaddyWaf) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
d.NextArg()
var err error
for d.NextBlock(0) {
switch d.Val() {
case "args_rule":
d.NextArg()
err = w.loadArgsRule(d.Val())
case "post_rule":
d.NextArg()
err = w.loadPostRule(d.Val())
case "user_agent_rule":
d.NextArg()
err = w.loadUserAgentRule(d.Val())
case "ip_allow_rule":
d.NextArg()
err = w.loadIpRule(d.Val(), false)
case "ip_block_rule":
d.NextArg()
err = w.loadIpRule(d.Val(), true)
case "rate_limit_bucket":
d.NextArg()
w.RateLimitBucket, _ = strconv.Atoi(d.Val())
case "rate_limit_rate":
d.NextArg()
w.RateLimitRate, _ = strconv.ParseFloat(d.Val(), 64)
}
if err != nil {
return err
}
}
return nil
}
// parseCaddyfile unmarshals tokens from h into a new Middleware.
// syntax:
//
// waf {
// args_rule <path>
// body_rule <path>
// user_agent_rule <path>
// }
func parseCaddyfile(h httpcaddyfile.Helper) (caddyhttp.MiddlewareHandler, error) {
var t CaddyWaf
err := t.UnmarshalCaddyfile(h.Dispenser)
if err != nil {
return nil, err
}
return &t, nil
}