fix: silly golang runtime exception

Dockerfile

@@ -8,4 +8,5 @@ RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -ldflags '-s' -o ./s
 
 FROM gcr.io/distroless/static:nonroot
 COPY --from=builder /go/src/github.com/serjs/socks5/socks5 /
+
 ENTRYPOINT ["/socks5"]

README.md

@@ -9,26 +9,31 @@ Simple socks5 server using go-socks5 with authentication, allowed ips list and d
 
 - Run docker container using default container port 1080 and expose it to world using host port 1080, with auth creds
 
-    ```docker run -d --name socks5 -p 1080:1080 -e PROXY_USER=<PROXY_USER> -e PROXY_PASSWORD=<PROXY_PASSWORD>  serjs/go-socks5-proxy```
+  `docker run -d --name socks5 -p 1080:1080 -e PROXY_USER=<PROXY_USER> -e PROXY_PASSWORD=<PROXY_PASSWORD>  serjs/go-socks5-proxy`
 
   - Leave `PROXY_USER` and `PROXY_PASSWORD` empty for skip authentication options while running socks5 server, see example below
 
 - Run docker container using specifit container port and expose it to host port 1090, without auth creds
 
-    ```docker run -d --name socks5 -p 1090:9090 -e PROXY_PORT=9090 serjs/go-socks5-proxy```
+  `docker run -d --name socks5 -p 1090:9090 -e PROXY_PORT=9090 serjs/go-socks5-proxy`
+
+- Run docker container using default container port 1080 and expose it to world using host port 1080, with PROXY_CREDENTIALS multi-user authentication
+
+  `docker run -d --name socks5 -p 1080:1080 -e PROXY_CREDENTIALS='[{"username":"TEST_USERNAME","password":"password123"}]' serjs/go-socks5-proxy`
 
 # List of supported config parameters
 
 | ENV variable      | Type        | Default | Description                                                                                                                                                                 |
-|------------|----|-------|-----------|
+| ----------------- | ----------- | ------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| PROXY_CREDENTIALS | Json Object | EMPTY   | Provide a JSON stringified object representing a list of allowed user/password credential pairs. The form of this object is `{ password: string, username: string }[]`. See |
 | PROXY_USER        | String      | EMPTY   | Set proxy user (also required existed PROXY_PASS)                                                                                                                           |
 | PROXY_PASSWORD    | String      | EMPTY   | Set proxy password for auth, used with PROXY_USER                                                                                                                           |
 | PROXY_PORT        | String      | 1080    | Set listen port for application inside docker container                                                                                                                     |
 | ALLOWED_DEST_FQDN | String      | EMPTY   | Allowed destination address regular expression pattern. Default allows all.                                                                                                 |
 | ALLOWED_IPS       | String      | Empty   | Set allowed IP's that can connect to proxy, separator `,`                                                                                                                   |
 
-
 # Build your own image:
+
 `docker-compose -f docker-compose.build.yml up -d`\
 Just don't forget to set parameters in the `.env` file.
 
@@ -38,22 +43,22 @@ Assuming that you are using container on 1080 host docker port
 
 ## Without authentication
 
-```curl --socks5 <docker host ip>:1080  https://ifcfg.co``` - result must show docker host ip (for bridged network)
+`curl --socks5 <docker host ip>:1080  https://ifcfg.co` - result must show docker host ip (for bridged network)
 
 or
 
-```docker run --rm curlimages/curl:7.65.3 -s --socks5 <docker host ip>:1080 https://ifcfg.co```
+`docker run --rm curlimages/curl:7.65.3 -s --socks5 <docker host ip>:1080 https://ifcfg.co`
 
 ## With authentication
 
-```curl --socks5 <docker host ip>:1080 -U <PROXY_USER>:<PROXY_PASSWORD> http://ifcfg.co```
+`curl --socks5 <docker host ip>:1080 -U <PROXY_USER>:<PROXY_PASSWORD> http://ifcfg.co`
 
 or
 
-```docker run --rm curlimages/curl:7.65.3 -s --socks5 <PROXY_USER>:<PROXY_PASSWORD>@<docker host ip>:1080 http://ifcfg.co```
+`docker run --rm curlimages/curl:7.65.3 -s --socks5 <PROXY_USER>:<PROXY_PASSWORD>@<docker host ip>:1080 http://ifcfg.co`
 
 # Authors
 
-* **Sergey Bogayrets**
+- **Sergey Bogayrets**
 
 See also the list of [contributors](https://github.com/serjs/socks5-server/graphs/contributors) who participated in this project.

credentials.go

@@ -2,26 +2,19 @@ package main
 
 import (
 	"encoding/json"
-
-	"github.com/armon/go-socks5"
 )
 
-type credentials struct {
+type Credentials struct {
 	Username string `json:"username"`
 	Password string `json:"password"`
 }
 
-func parseCredentials(credsString string) (socks5.StaticCredentials, error) {
+func parseCredentials(credsString string) ([]Credentials, error) {
-	var creds []credentials
+	var creds []Credentials
 	err := json.Unmarshal([]byte(credsString), &creds)
 	if err != nil {
 		return nil, err
 	}
 
-	var credsMap socks5.StaticCredentials
+	return creds, nil
-	for _, cred := range creds {
-		credsMap[cred.Username] = cred.Password
-	}
-
-	return credsMap, nil
 }

server.go

@@ -31,12 +31,19 @@ func main() {
 		Logger: log.New(os.Stdout, "", log.LstdFlags),
 	}
 
+	log.Printf(cfg.Creds)
+
 	var creds socks5.StaticCredentials
 	if cfg.Creds != "" {
-		creds, err = parseCredentials(cfg.Creds)
+		var uname_pw_pairs, creds_err = parseCredentials(cfg.Creds)
-		if err != nil {
+
+		if creds_err != nil {
 			log.Printf("%+v\n", err)
 		}
+
+		for _, kv := range uname_pw_pairs {
+			creds[kv.Username] = kv.Password
+		}
 	}
 	if cfg.User+cfg.Password != "" {
 		creds[cfg.User] = cfg.Password