83 lines
1.9 KiB
Go
83 lines
1.9 KiB
Go
package main
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import (
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"encoding/gob"
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"flag"
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"fmt"
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"log"
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"net/http"
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"os"
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"sync"
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)
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var mu sync.Mutex
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var bindAddr string
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var me string
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var initialPeer string
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var dataDir string
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type LoggingHandler struct {
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Handler http.Handler
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}
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// Log all HTTP requests
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func (lh LoggingHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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log.Printf("Request: %s %s%s", r.Method, me, r.URL.String())
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lh.Handler.ServeHTTP(w, r)
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}
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func main() {
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flag.StringVar(&bindAddr, "b", ":4200", "bind address")
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flag.StringVar(&me, "u", "http://localhost:4200", "public URL")
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flag.StringVar(&initialPeer, "i", "", "initial peer")
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flag.StringVar(&dataDir, "d", ".", "data directory")
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flag.Parse()
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log.Printf("Starting %s %s %s %s", bindAddr, me, initialPeer, dataDir)
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// Record myself
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myHash = sha256sum(me)
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myPos = 0
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peerHashes = append(peerHashes, sha256sum(me))
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hashToDomain = map[string]string{peerHashes[0]: me}
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kvstore = make(map[string][]byte)
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users = make(map[string]user)
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// Load user data from disk
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os.Mkdir(dataDir, 0755)
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entries, err := os.ReadDir(dataDir)
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if err != nil {
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log.Fatal(err)
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}
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for _, entry := range entries {
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id := entry.Name()
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reader, err := os.Open(dataDir + "/" + id + "/gob")
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if err != nil {
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log.Fatal(err)
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continue
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}
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var user user
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dec := gob.NewDecoder(reader)
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dec.Decode(&user)
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users[id] = user
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}
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// Start background functions
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if initialPeer != "" {
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go addPeer(initialPeer)
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}
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go cleanPeers()
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go cleanKVStore()
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go redistributeKeys()
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http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
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fmt.Fprintf(w, "Hello! This is a Kela server.")
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})
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http.HandleFunc("/peer", peerHandler)
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http.HandleFunc("/user/", userHandler)
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http.HandleFunc("/dht/", dhtHandler)
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http.HandleFunc("/storage/", storageHandler)
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http.HandleFunc("/message/", messageHandler)
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log.Fatal(http.ListenAndServe(bindAddr, LoggingHandler{Handler: http.DefaultServeMux}))
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}
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