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package main
import (
"crypto/ed25519"
"crypto/sha256"
"encoding/base64"
"flag"
"log"
"net/http"
"sync"
)
type user struct {
pubkey []byte
}
var mu sync.Mutex
var me string
var myHash string
var myPos int
var hashToDomain map[string]string
var peerHashes []string
var kvstore map[string]string
// Get the sha256sum of string as a URL-safe unpadded base64 string
func sha256sum(s string) string {
b := sha256.Sum256([]byte(s))
return base64.RawURLEncoding.EncodeToString(b[:])
}
// Decode an ID to a public key
func asPubKey(s string) ed25519.PublicKey {
b, err := base64.RawURLEncoding.DecodeString(s)
if err != nil {
return nil
}
return ed25519.PublicKey(b)
}
func main() {
bindAddr := flag.String("b", ":4200", "bind address")
publicURL := flag.String("u", "http://localhost:4200", "public URL")
peer := flag.String("i", "", "initial peer")
flag.Parse()
log.Printf("Starting %s %s %s", *bindAddr, *publicURL, *peer)
// Record myself
me = *publicURL
myHash = sha256sum(me)
myPos = 0
peerHashes = append(peerHashes, sha256sum(me))
hashToDomain = map[string]string{peerHashes[0]: me}
if *peer != "" {
go addPeer(*peer)
}
http.HandleFunc("/peer", peerHandler)
http.HandleFunc("/dht", dhtHandler)
http.HandleFunc("/storage", storageHandler)
http.HandleFunc("/message", messageHandler)
log.Fatal(http.ListenAndServe(*bindAddr, nil))
}
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