9ac3cab1b7
* Make CoreDNS a server type plugin for Caddy Remove code we don't need and port all middleware over. Fix all tests and rework the documentation. Also make `go generate` build a caddy binary which we then copy into our directory. This means `go build`-builds remain working as-is. And new etc instances in each etcd test for better isolation. Fix more tests and rework test.Server with the newer support Caddy offers. Fix Makefile to support new mode of operation.
66 lines
1.4 KiB
Go
66 lines
1.4 KiB
Go
package cache
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import (
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"strconv"
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"github.com/miekg/coredns/core/dnsserver"
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"github.com/miekg/coredns/middleware"
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"github.com/mholt/caddy"
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)
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func init() {
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caddy.RegisterPlugin("cache", caddy.Plugin{
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ServerType: "dns",
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Action: setup,
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})
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}
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// Cache sets up the root file path of the server.
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func setup(c *caddy.Controller) error {
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ttl, zones, err := cacheParse(c)
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if err != nil {
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return err
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}
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dnsserver.GetConfig(c).AddMiddleware(func(next dnsserver.Handler) dnsserver.Handler {
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return NewCache(ttl, zones, next)
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})
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return nil
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}
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func cacheParse(c *caddy.Controller) (int, []string, error) {
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var (
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err error
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ttl int
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origins []string
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)
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for c.Next() {
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if c.Val() == "cache" {
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// cache [ttl] [zones..]
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origins = make([]string, len(c.ServerBlockKeys))
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copy(origins, c.ServerBlockKeys)
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args := c.RemainingArgs()
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if len(args) > 0 {
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origins = args
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// first args may be just a number, then it is the ttl, if not it is a zone
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t := origins[0]
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ttl, err = strconv.Atoi(t)
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if err == nil {
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origins = origins[1:]
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if len(origins) == 0 {
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// There was *only* the ttl, revert back to server block
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copy(origins, c.ServerBlockKeys)
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}
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}
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}
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for i, _ := range origins {
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origins[i] = middleware.Host(origins[i]).Normalize()
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}
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return ttl, origins, nil
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}
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}
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return 0, nil, nil
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}
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