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.idea |
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package cnAuth | ||
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import ( | ||
"bufio" | ||
"bytes" | ||
"crypto/hmac" | ||
"crypto/sha256" | ||
"encoding/base64" | ||
"encoding/hex" | ||
"fmt" | ||
"github.com/pkg/errors" | ||
"os" | ||
"time" | ||
) | ||
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type CnAuth struct { | ||
keys map[string]string | ||
} | ||
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func NewCnAuthFromFile( file *os.File ) (*CnAuth, error) { | ||
cnAuth := new (CnAuth) | ||
err := cnAuth.parseConfigFile(file) | ||
if err != nil { | ||
return nil, err | ||
} | ||
return cnAuth, nil | ||
} | ||
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/* legacy: parse strange key file format | ||
kapi_id="001";kapi_key="a27f9e73fdde6a5005879c273c9aea5e8d917eec77bbdfd73272c0af9b4c6b7a";kapi_groups="watcher";eval ugroups_${kapi_id}=${kapi_groups};eval ukey_${kapi_id}=${kapi_key} | ||
*/ | ||
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func ( cnAuth *CnAuth ) parseConfigFile(file *os.File) error { | ||
cnAuth.keys = make( map[string]string, 0 ) | ||
scanner := bufio.NewScanner(file) | ||
for scanner.Scan() { | ||
line := []byte(scanner.Text()) | ||
fieldsKV :=bytes.Split( bytes.Trim(line, " "), []byte(";") ) | ||
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// only first 3 kv pairs are relevant | ||
var keyLabel string | ||
var keyHex string | ||
for fkv := 0; fkv<3; fkv++ { | ||
kv := bytes.Split( bytes.Trim(fieldsKV[fkv], " "), []byte("=") ) | ||
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switch string(kv[0]) { | ||
case "kapi_id": | ||
keyLabel = string(bytes.Trim(kv[1],"\"")) | ||
break | ||
case "kapi_key": | ||
keyHex = string(bytes.Trim(kv[1],"\"")) | ||
break | ||
} | ||
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} | ||
if keyLabel != "" && keyHex != "" { | ||
cnAuth.keys[keyLabel] = keyHex | ||
} | ||
} | ||
return scanner.Err() | ||
} | ||
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/* | ||
#!/bin/bash | ||
k="9cf15759eb77400f2d0d54d9e3a5822fc5b1f49817f0a65e930a1ed6bf3f8a00" | ||
id="003" | ||
h64=$(echo -n "{\"alg\":\"HS256\",\"typ\":\"JWT\"}" | base64) | ||
p64=$(echo -n "{\"id\":\"$id\",\"exp\":$((`date +"%s"`+10))}" | base64) | ||
s=$(echo -n "$h64.$p64" | openssl dgst -hmac "$k" -sha256 -r | cut -sd ' ' -f1) | ||
token="$h64.$p64.$s" | ||
echo h64=$h64 | ||
echo p64=$p64 | ||
echo k=$k | ||
echo token=$token | ||
echo "" | ||
curl --cacert dist/gatekeeper/cert.pem -H "Authorization: Bearer $token" https://127.0.0.1/getnewaddress | ||
echo "" | ||
*/ | ||
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func ( cnAuth *CnAuth ) BearerFromKey( keyLabel string ) (string, error) { | ||
if keyHex, ok := cnAuth.keys[keyLabel]; ok { | ||
h64 := base64.StdEncoding.EncodeToString( []byte("{\"alg\":\"HS256\",\"typ\":\"JWT\"}") ) | ||
p64 := base64.StdEncoding.EncodeToString( []byte(fmt.Sprintf("{\"id\":\"%s\",\"exp\":%d}", keyLabel, time.Now().Unix()+10 ) ) ) | ||
toSign := h64+"."+p64 | ||
key, err := hex.DecodeString(keyHex) | ||
if err != nil { | ||
return "", err | ||
} | ||
h := hmac.New( sha256.New, key ) | ||
h.Write([]byte(toSign)) | ||
sha := hex.EncodeToString(h.Sum(nil)) | ||
return "Bearer "+toSign+"."+sha, nil | ||
} | ||
return "", errors.New("No such key with label "+keyLabel ) | ||
} |
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-----BEGIN CERTIFICATE----- | ||
MIIE/jCCAuagAwIBAgIJAIBv4aiI2NRtMA0GCSqGSIb3DQEBCwUAMB4xHDAaBgNV | ||
BAMME2Rpc2swYm9vay5mcml0ei5ib3gwHhcNMTkwMTE3MTcwMDA5WhcNMjkwMTE0 | ||
MTcwMDA5WjAeMRwwGgYDVQQDDBNkaXNrMGJvb2suZnJpdHouYm94MIICIjANBgkq | ||
hkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAyVKNTGlPfd4QX9HaDc9a6prbc9il4jtR | ||
iChSlMf3/6UfAMcS+xVgR2iR8FK/DQuFzxn+6BybpoiD333rjDr7zR7y9px3Xph2 | ||
bmsjZy0hv9SIBbx0DJvvwODTlWTAH8qgU2DN6xWc7vjgeGi5uTpnmwWrkH6BjtVr | ||
woBkF0JmfH7KiLS/QjWqPKeI6o/GpvCP9meD131Sq/ReoOTrJ4F5aNdhAril4nU5 | ||
6e7Y+Iyp35DZSLuU+pDJAhxEvkYGas1ted5RRxlho8ukaoABCbmaTeNmgsJxK2SC | ||
ABjfUc38aAlNLuMbMMR7Q85Z84OTJiUqanVczwdSj1QHlNCWZK1McBPhj2m2Wdge | ||
gedrq5XcjQGChzTEozcFntU0qzY3ja1+DOE8UaMaTrDH4saUXCMZk3W1m5mmiZW3 | ||
mcB0cKGdeg6K6USg1BwBTU9qolUusxz5T0tNxjcMlXU93P17d4s5IXfliXhMNr/6 | ||
4fl78Ey3FNprTix4alW7hBAp/eA/LhS55s3jwdoVzJl4RELC0284pahj5exYQwU6 | ||
zjLedMxzC+7veQYwWfZOs9jVCTP0YStuT0j9xD3ausLZyB1Egbsajyy71IeoYOf1 | ||
9S6dFIXE5LHAw2j3D3bh5wb019I8V5szGbeemdBpb3m+bzT8qjLSNranuT41CIHd | ||
IYjq85vDEJsCAwEAAaM/MD0wOwYDVR0RBDQwMoITZGlzazBib29rLmZyaXR6LmJv | ||
eIIJbG9jYWxob3N0ggpnYXRla2VlcGVyhwR/AAABMA0GCSqGSIb3DQEBCwUAA4IC | ||
AQBrE4bJsIMwSRPng94PcqR5F6Cux0bkwezALJCHpjHTuqok/wHHE5dZsAXcSsYc | ||
5givuBESih6CpY5h21Od0TBugyv3FCRY8OoaBXtlO6FYlEnVeJ8AOexJTb3qcbBS | ||
HU8MBWEydUh5HFA3PRKAG0Y4cvUK4WXJZ42Et3td0NkGFOv6bxdtVGB4Vz7FGn+3 | ||
qd9fpmFCdQYDp6RSZDDz4B8XLsVuTeTES5GbUMSQAGanP7jxMr04wQ3MuoZrRODN | ||
FatifOJfq0fZddsBjJbrTLxArIqaPh3J4xzwiNE5du4CQDQrbbHXG22kuvbr5foA | ||
cixLnuyWMq0a5a70mSNS6TZ3nq4ATXNNa0cZ8fBxHqHGTLM8gQisW8vTaZfIFh/i | ||
hnFcGxtpo1ryi7JG9HCWsh0x20677iag5MuZfv2s4TbK71Ol6WV4FravCqU0qgbn | ||
TTl+BnYw3H67FO/a6RD4ISlFWK+8EVEQdMgvPoRuw323YznT0Nd8Q/Gq8raYF2wa | ||
z9T9OXu6TcVGtfPAgX+AM/+hDqWGxyiFR9ZtLpGOHGP8f+TZA5uCawc8Zry4yN6L | ||
E0yPIx96pJz59T3k8XbRHTQCaPsSUGRAZIY9LpJj0fIG7zCr9eCBpp2qyzmpyNfx | ||
egN3ILYy1Y8JbJj73HWyP0F3Am7i76tkCWB7tQeFOb5FMg== | ||
-----END CERTIFICATE----- |
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[server] | ||
listen = "0.0.0.0:8080" | ||
index_template = "templates/index.html" | ||
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[gatekeeper] | ||
status_url = "http://localhost:3333/status" | ||
key_label = "001" | ||
key_file = "data/keys.properties" | ||
cert_file = "data/cert.pem" | ||
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kapi_id="001";kapi_key="a27f9e73fdde6a5005879c273c9aea5e8d917eec77bbdfd73272c0af9b4c6b7a";kapi_groups="watcher";eval ugroups_${kapi_id}=${kapi_groups};eval ukey_${kapi_id}=${kapi_key} | ||
kapi_id="002";kapi_key="fe58ddbb66d7302a7087af3242a98b6326c51a257f5eab1c06bb8cc02e25890d";kapi_groups="watcher,spender";eval ugroups_${kapi_id}=${kapi_groups};eval ukey_${kapi_id}=${kapi_key} | ||
kapi_id="003";kapi_key="f0b8bb52f4c7007938757bcdfc73b452d6ce08cc0c660ce57c5464ae95f35417";kapi_groups="watcher,spender,admin";eval ugroups_${kapi_id}=${kapi_groups};eval ukey_${kapi_id}=${kapi_key} |
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package main | ||
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import ( | ||
"bytes" | ||
"cyphernode_status/cnAuth" | ||
"fmt" | ||
"github.com/gorilla/mux" | ||
"github.com/op/go-logging" | ||
"github.com/spf13/viper" | ||
"html/template" | ||
"io/ioutil" | ||
"net/http" | ||
"os" | ||
) | ||
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type Status struct { | ||
Foo string `json:"foo"` | ||
} | ||
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var auth *cnAuth.CnAuth | ||
var statsKeyLabel string | ||
var indexTemplate string | ||
var statusUrl string | ||
var log = logging.MustGetLogger("main") | ||
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func RootHandler(w http.ResponseWriter, _ *http.Request) { | ||
t,_ := template.ParseFiles(indexTemplate) | ||
t.Execute(w, nil) | ||
} | ||
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func generateAuthHeaders() map[string]string { | ||
result := make( map[string]string, 0 ) | ||
return result | ||
} | ||
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func StatusHandler(w http.ResponseWriter, r *http.Request) { | ||
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req, err := http.NewRequest("GET", statusUrl, nil) | ||
if err != nil { | ||
w.WriteHeader(503 ) | ||
return | ||
} | ||
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res, err := http.DefaultClient.Do(req) | ||
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if err != nil { | ||
w.WriteHeader(503 ) | ||
return | ||
} | ||
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defer res.Body.Close() | ||
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body, _ := ioutil.ReadAll(res.Body) | ||
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//status := new (Status) | ||
//jsonData, _ := json.Marshal(status) | ||
w.Header().Set("Content-Type", "application/json") | ||
bearer, err := auth.BearerFromKey(statsKeyLabel) | ||
if err != nil { | ||
w.WriteHeader(503 ) | ||
return | ||
} | ||
w.Header().Set("Authorization", bearer ) | ||
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fmt.Fprint(w, bytes.NewBuffer(body)) | ||
return | ||
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} | ||
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func main() { | ||
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viper.SetConfigName("config") | ||
viper.AddConfigPath("data") | ||
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err := viper.ReadInConfig() | ||
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if err != nil { | ||
log.Error(err) | ||
} | ||
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keysFilePath := viper.GetString("gatekeeper.key_file") | ||
statsKeyLabel = viper.GetString("gatekeeper.key_label") | ||
statusUrl = viper.GetString("gatekeeper.status_url") | ||
listenTo := viper.GetString("server.listen") | ||
indexTemplate = viper.GetString("server.index_template") | ||
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file, err := os.Open(keysFilePath) | ||
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if err != nil { | ||
log.Error(err) | ||
} | ||
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auth, err = cnAuth.NewCnAuthFromFile( file ) | ||
file.Close() | ||
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if err != nil { | ||
log.Error(err) | ||
} | ||
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log.Infof("Started cyphernode status page backend. URL Port [%v] ",listenTo) | ||
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router := mux.NewRouter() | ||
router.HandleFunc("/", RootHandler) | ||
router.HandleFunc("/status", StatusHandler) | ||
router.PathPrefix("/static/").Handler(http.StripPrefix("/static/", http.FileServer(http.Dir("./static")))) | ||
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http.Handle("/", router) | ||
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log.Fatal(http.ListenAndServe(listenTo, nil)) | ||
} |
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<html lang="en"> | ||
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<head> | ||
<title>Cyphernode status page</title> | ||
<link rel="stylesheet" href="static/css/bootstrap.min.css" rel="stylesheet"> | ||
</head> | ||
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<body> | ||
<div class="container"> | ||
<div class="card"> | ||
<div class="card-header"> | ||
<h1>Cyphernode status page</h1> | ||
</div> | ||
</div> | ||
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<div class="card-body"> | ||
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</div> | ||
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<li class="card"> | ||
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</li> | ||
</div> | ||
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<script src="static/js/bootstrap.min.js"></script> | ||
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</body> | ||
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</html> |