Retrieve information from body for refresh token

main.go

@@ -90,8 +90,8 @@ func main() {
 		if splitIndex == -1 {
 			fmt.Println("No host found")
 		}
-		state := string([]byte(req_state[0:splitIndex]))
-		host := string([]byte(req_state[splitIndex+1:len(req_state)]))
+		state := req_state[0:splitIndex]
+		host := req_state[splitIndex+1:len(req_state)]
 
 		usagePointId := query.Get("usage_point_id")
 
@@ -106,17 +106,78 @@ func main() {
 		query := r.URL.Query()
 		fmt.Println(query)
 
-		contents, err := ioutil.ReadAll(r.Body)
-		if err != nil {
-			fmt.Println(err)
-		}
-		fmt.Println(string(contents))
+		clientId := ""
+		clientSecret := ""
+		code := ""
+		grantType := ""
+		refreshToken := ""
 
-		clientId := query.Get("client_id")
-		clientSecret := query.Get("client_secret")
-		code := query.Get("code")
-		grantType := query.Get("grant_type")
-		refreshToken := query.Get("refresh_token")
+		if len(query) == 0 {
+			fmt.Println(time.Now().Format("2006-01-02 15:04:05"), "No url params found - check in the body")
+			contents, err := ioutil.ReadAll(r.Body)
+			if err != nil {
+				fmt.Println(err)
+			}
+			pageContent := string(contents)
+			//Check for client_id
+			clientIdStartIndex := strings.Index(pageContent, "client_id=")
+			if clientIdStartIndex == -1 {
+				fmt.Println("No client_id found")
+				http.Error(w, http.StatusText(500), 500)
+			}
+			clientIdStartIndex += 10
+			clientId = pageContent[clientIdStartIndex:clientIdStartIndex + 36]
+			//Check for client_secret
+			clientSecretStartIndex := strings.Index(pageContent, "client_secret=")
+			if clientSecretStartIndex == -1 {
+				fmt.Println("No client_secret found")
+				http.Error(w, http.StatusText(500), 500)
+			}
+			clientSecretStartIndex += 14
+			clientSecret = pageContent[clientSecretStartIndex:clientSecretStartIndex + 36]
+			//Check for code
+			codeStartIndex := strings.Index(pageContent, "code=")
+			if codeStartIndex == -1 {
+				fmt.Println("No code found")
+			} else {
+				codeStartIndex += 5
+				code = pageContent[codeStartIndex:codeStartIndex + 30]
+			}
+			//Check for grant_type
+			grandTypeStartIndex := strings.Index(pageContent, "grant_type=")
+			if grandTypeStartIndex == -1 {
+				fmt.Println("No grant_type found")
+				http.Error(w, http.StatusText(500), 500)
+			}
+			grandTypeStartIndex += 11
+			tempGrandTypeString := pageContent[grandTypeStartIndex:len(pageContent)]
+			grandTypeEndIndex := strings.Index(tempGrandTypeString, "&")
+			if grandTypeEndIndex == -1 {
+				fmt.Println("No closing tag for grant_type found")
+				http.Error(w, http.StatusText(500), 500)
+			}
+			grantType = tempGrandTypeString[0:grandTypeEndIndex]
+			//Check for refresh_token
+			refershTokenStartIndex := strings.Index(pageContent, "refresh_token=")
+			if refershTokenStartIndex == -1 {
+				fmt.Println("No code found")
+			}
+			refershTokenStartIndex += 14
+			refreshToken = pageContent[refershTokenStartIndex:refershTokenStartIndex + 46]
+		} else {
+			clientId = query.Get("client_id")
+			clientSecret = query.Get("client_secret")
+			code = query.Get("code")
+			grantType = query.Get("grant_type")
+			refreshToken = query.Get("refresh_token")
+		}
+		// Print out the result
+		fmt.Printf("client_id: %s\n", clientId)
+		fmt.Printf("client_secret: %s\n", clientSecret)
+		fmt.Printf("code: %s\n", code)
+		fmt.Printf("grant_type: %s\n", grantType)
+		fmt.Printf("refresh_token: %s\n", refreshToken)
+		
 
 		tokenUrl := "https://gw.hml.api.enedis.fr/v1/oauth2/token"