feat: Improved bypass

Dockerfile

@@ -9,6 +9,7 @@ RUN CGO_ENABLED=0 go build -ldflags "-s -w"
 
 FROM scratch
 
+COPY --from=build /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
 COPY --from=build /src/login /login
 COPY --from=build /src/.env /.env
 

main.go

@@ -2,7 +2,6 @@ package main
 
 import (
 	"crypto/rand"
-  "crypto/tls"
 	"crypto/rsa"
 	"database/sql"
 	"encoding/hex"
@@ -18,12 +17,12 @@ import (
 	"strings"
 	"time"
 
-  "github.com/joho/godotenv"
-  "github.com/julienschmidt/httprouter"
 	"github.com/dgrijalva/jwt-go"
 	"github.com/go-redis/redis"
-  "github.com/ttacon/libphonenumber"
+	"github.com/joho/godotenv"
+	"github.com/julienschmidt/httprouter"
 	_ "github.com/lib/pq"
+	"github.com/ttacon/libphonenumber"
 )
 
 var listen string
@@ -94,8 +93,8 @@ func main() {
 	// Routes
 	router := httprouter.New()
 
-  router.POST("/login", Login);
 	router.POST("/init", InitRequest)
+	router.POST("/init/bypass", InitRequestBypass)
 	router.POST("/verify", VerifyCode)
 	router.POST("/register/:code/:nonce", CreateUser)
 
@@ -121,6 +120,7 @@ func RandomHex() (string, error) {
 type InitRequestBody struct {
 	PhoneNumber string `json:"phone_number"`
 }
+
 func InitRequest(w http.ResponseWriter, r *http.Request, p httprouter.Params) {
 	// Get request body
 	req := InitRequestBody{}
@@ -171,11 +171,7 @@ func InitRequest(w http.ResponseWriter, r *http.Request, p httprouter.Params) {
 	twilioReq.SetBasicAuth(twilioSID, twilioToken)
 	twilioReq.Header.Add("Content-Type", "application/x-www-form-urlencoded")
 
-  // Twilio uses self-signed certs
-  transport := &http.Transport {
-    TLSClientConfig: &tls.Config{ InsecureSkipVerify: true },
-  }
-  client := &http.Client{ Transport: transport }
+	client := &http.Client{}
 	resp, err := client.Do(twilioReq)
 
 	if err != nil {
@@ -191,11 +187,48 @@ func InitRequest(w http.ResponseWriter, r *http.Request, p httprouter.Params) {
 	w.Write([]byte(bytes))
 }
 
+func InitRequestBypass(w http.ResponseWriter, r *http.Request, p httprouter.Params) {
+	// Get request body
+	req := InitRequestBody{}
+	decoder := json.NewDecoder(r.Body)
+	err := decoder.Decode(&req)
+	if err != nil {
+		http.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest)
+		return
+	}
+
+	// Make sure phone number is legitimate
+	phone, err := ParsePhone(req.PhoneNumber)
+	if err != nil {
+		http.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest)
+		return
+	}
+
+	// Generate nonce
+	b := make([]byte, 16)
+	_, err = rand.Read(b)
+	if err != nil {
+		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
+		return
+	}
+	bytes := hex.EncodeToString(b)
+
+	code := "000000"
+	// Set code-nonce pair in redis first
+	redisClient.Set(code+"nonce", bytes, ttl)
+	// Set code-phone_number pair
+	redisClient.Set(code+"phone", phone, ttl)
+
+	// Return nonce
+	w.Write([]byte(bytes))
+}
+
 type VerifyRequestBody struct {
 	Code     string `json:"code"`
 	Nonce    string `json:"nonce"`
 	ClientId string `json:"clientid"`
 }
+
 func VerifyCode(w http.ResponseWriter, r *http.Request, p httprouter.Params) {
 	// Get request body
 	req := VerifyRequestBody{}
@@ -278,34 +311,6 @@ func VerifyCode(w http.ResponseWriter, r *http.Request, p httprouter.Params) {
 	w.Write([]byte(tokenString))
 }
 
-type LoginData struct {
-  ID string `json:"userid"`
-  Client string `json:"clientid"`
-}
-
-func Login(w http.ResponseWriter, r *http.Request, p httprouter.Params) {
-  login := LoginData {}
-  decoder := json.NewDecoder(r.Body)
-  err := decoder.Decode(&login)
-	if err != nil {
-		http.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest)
-		return
-	}
-
-  token := jwt.NewWithClaims(jwt.SigningMethodRS256, jwt.MapClaims {
-    "userid": login.ID,
-    "clientid": login.Client,
-  })
-
-  tokenString, err := token.SignedString(privateKey)
-  if err != nil {
-    http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
-    return
-  }
-
-  w.Write([]byte(tokenString))
-}
-
 func CreateUser(w http.ResponseWriter, r *http.Request, p httprouter.Params) {
 	code := p.ByName("code")
 	nonce := p.ByName("nonce")