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36 lines
1.0 KiB
Go
36 lines
1.0 KiB
Go
package corehttp
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import (
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"net"
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"net/http"
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"strings"
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isd "github.com/ipfs/go-ipfs/Godeps/_workspace/src/github.com/jbenet/go-is-domain"
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"github.com/ipfs/go-ipfs/core"
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"gx/ipfs/QmZy2y8t9zQH2a1b8q2ZSLKp17ATuJoCNxxyMFG5qFExpt/go-net/context"
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)
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// IPNSHostnameOption rewrites an incoming request if its Host: header contains
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// an IPNS name.
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// The rewritten request points at the resolved name on the gateway handler.
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func IPNSHostnameOption() ServeOption {
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return func(n *core.IpfsNode, _ net.Listener, mux *http.ServeMux) (*http.ServeMux, error) {
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childMux := http.NewServeMux()
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mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
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ctx, cancel := context.WithCancel(n.Context())
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defer cancel()
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host := strings.SplitN(r.Host, ":", 2)[0]
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if len(host) > 0 && isd.IsDomain(host) {
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name := "/ipns/" + host
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if _, err := n.Namesys.Resolve(ctx, name); err == nil {
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r.Header["X-Ipns-Original-Path"] = []string{r.URL.Path}
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r.URL.Path = name + r.URL.Path
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}
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}
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childMux.ServeHTTP(w, r)
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})
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return childMux, nil
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}
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}
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