[taler-taldir] 02/02: Add salt from configuration; fix bug where config is not used

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martin-schanzenbach pushed a commit to branch master
in repository taldir.

commit a23141ba64eca8630f037ef592753fe292b7e331
Author: Martin Schanzenbach <mschanzenbach@posteo.de>
AuthorDate: Tue Apr 19 15:26:34 2022 +0200

    Add salt from configuration; fix bug where config is not used
---
 config.json |  4 +++-
 taldir.go   | 24 ++++++++++++++----------
 2 files changed, 17 insertions(+), 11 deletions(-)

diff --git a/config.json b/config.json
index 3c1f173..9e0d381 100644
--- a/config.json
+++ b/config.json
@@ -3,5 +3,7 @@
   "db_backend": "sqlite",
   "validators": ["email","phone"],
   "email_sender": "taldir@taler.net",
-  "host": "https://taldir.net/";
+  "host": "https://taldir.net/";,
+  "bind_to": "localhost:10000",
+  "salt": "ChangeMe" 
 }
diff --git a/taldir.go b/taldir.go
index 8e2520f..b4c4eaf 100644
--- a/taldir.go
+++ b/taldir.go
@@ -23,6 +23,7 @@ type Configuration struct {
   EmailSender string `json:"email_sender"`
   Salt string `json:"salt"`
   Host string `json:"host"`
+  BindTo string `json:"bind_to"`
 }
 
 // A mappind entry from the identity key hash to a wallet key
@@ -96,8 +97,9 @@ func returnSingleEntry(w http.ResponseWriter, r 
*http.Request){
 // Hashes an identity key (e.g. sha256(<email address>)) with a salt for
 // Lookup and storage.
 func hashIdentityKey(idkey string) string {
-    salt := make([]byte, len(config.Salt))
-    return base32.StdEncoding.EncodeToString(argon2.IDKey([]byte(idkey), salt, 
1, 64*1024, 4, 32))
+  fmt.Println("Using salt " + config.Salt)
+  salt := make([]byte, len(config.Salt))
+  return base32.StdEncoding.EncodeToString(argon2.IDKey([]byte(idkey), salt, 
1, 64*1024, 4, 32))
 }
 
 // Called by the registrant to validate the registration request. The 
reference ID was
@@ -136,12 +138,12 @@ func validateSingleEntry(w http.ResponseWriter, r 
*http.Request){
 
 // Generates random reference token used in the validation flow.
 func generateToken() string {
-    randBytes := make([]byte, 32)
-    _, err := rand.Read(randBytes)
-    if err != nil {
-        panic(err)
-    }
-    return base32.StdEncoding.EncodeToString(randBytes)
+  randBytes := make([]byte, 32)
+  _, err := rand.Read(randBytes)
+  if err != nil {
+    panic(err)
+  }
+  return base32.StdEncoding.EncodeToString(randBytes)
 }
 
 // Initiate a registration request for an identity
@@ -196,14 +198,15 @@ func handleRequests() {
   myRouter.HandleFunc("/directory/{identity_key}", 
returnSingleEntry).Methods("GET")
   myRouter.HandleFunc("/validation/{reference}", 
validateSingleEntry).Methods("GET")
   myRouter.HandleFunc("/register/{identity}", 
addPendingValidation).Methods("POST")
-  log.Fatal(http.ListenAndServe(":10000", myRouter))
+  fmt.Println("Listening on " + config.BindTo)
+  log.Fatal(http.ListenAndServe(config.BindTo, myRouter))
 }
 
 func main() {
   file, _ := os.Open("config.json")
   defer file.Close()
   decoder := json.NewDecoder(file)
-  config := Configuration{}
+  config = Configuration{}
   err := decoder.Decode(&config)
   if err != nil {
     fmt.Println("error:", err)
@@ -212,6 +215,7 @@ func main() {
     fmt.Println("Production mode enabled") 
   }
   validators = make(map[string]bool)
+  fmt.Println(config.BindTo)
   fmt.Println("Enabled validators:", config.Validators)
   for _, a := range config.Validators {
     validators[a] = true

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