Add binary script (#45)

* adding python script to download oauth2l binary

* moving python script to api

* deleting duplicate python script

* adding setup to test files and backend to download binaries

* fixing tests

* updating gitignore to ignore the installed binaries

* fixing gitignore

* fixing gitignore

* fixing gitignore

* fixing gitignore

* fixing gitignore

* fixing gitignore

* adding spaces between operators in python script

* removing binaries file

Author: melyxlin

.gitignore

@@ -30,4 +30,8 @@ npm-debug.log*
 TODOS.txt
 
 # api
-./web/api/.env
+./api/.env
+
+# binaries
+api/binaries/
+api/binaries/oauth2l

api/backend.go

@@ -5,6 +5,7 @@ import (
 	"io"
 	"log"
 	"net/http"
+	"os/exec"
 	"reflect"
 	"strings"
 	"time"
@@ -266,7 +267,17 @@ func CredentialsTokenHandler(w http.ResponseWriter, r *http.Request) {
 	json.NewEncoder(w).Encode(responseBody)
 }
 
+func getBinaries() {
+	cmd := exec.Command("python3", "get_binaries.py")
+	err := cmd.Run()
+	if err != nil {
+		log.Fatalf("error: %v", err)
+		return
+	}
+}
+
 func main() {
+	getBinaries()
 	router := mux.NewRouter()
 	log.Println("Authorization Playground")
 	router.HandleFunc("/api", Handler)

api/backend_test.go

@@ -5,11 +5,23 @@ import (
 	"encoding/json"
 	"net/http"
 	"net/http/httptest"
+	"os"
+	"os/exec"
 	"reflect"
 	"strings"
 	"testing"
 )
 
+func TestMain(m *testing.M) {
+	cmd := exec.Command("python3", "get_binaries.py")
+	err := cmd.Run()
+	if err != nil {
+		os.Exit(1)
+	}
+	os.Exit(m.Run())
+
+}
+
 func TestHandlerAuthenticateCredentialsTokenValid(t *testing.T) {
 	jsonStr := []byte(`{
         "commandtype":"fetch",

api/binaries/oauth2l

@@ -0,0 +1,21 @@
+#!/usr/bin/python
+
+import os
+import platform
+
+def main():
+  binaryURL = ""
+  if platform.system() == "Linux":
+    binaryURL = "https://storage.googleapis.com/oauth2l/latest/linux_amd64.tgz"
+  elif platform.system() == "Darwin":
+    binaryURL = "https://storage.googleapis.com/oauth2l/latest/darwin_amd64.tgz"
+  elif platform.system() == "Windows":
+    binaryURL = "https://storage.googleapis.com/oauth2l/latest/windows_amd64.tgz"
+  else:
+    print("Platform not supported.")
+    return
+    
+  os.system("mkdir binaries| wget " + binaryURL + " -O - | tar -xz -C binaries --strip-components=1")
+
+if __name__ == '__main__':
+  main()