sha256 hashing password

src/auth/auth.cpp

@@ -4,6 +4,7 @@
 #include <includes.hpp>
 #include <jwt.hpp>
 #include <syslog.h>
+#include <security/HashPassword.hpp>
 
 // function for authorization users
 void auth(const httplib::Request &request, httplib::Response &response) {
@@ -35,7 +36,7 @@ void auth(const httplib::Request &request, httplib::Response &response) {
 
     std::string userid;
     for (nlohmann::basic_json<> user: all_users) {
-        if ((user["username"] == request_username) && (user["password"] == request_password)) {
+        if ((user["username"] == request_username) && (user["password"] == hashPassword(request_password))) {
             userid = user["id"];
             break;
         }

src/security/HashPassword.hpp

@@ -0,0 +1,23 @@
+#pragma once
+
+#include <iostream>
+#include <string>
+#include <openssl/sha.h>
+#include <iomanip>
+#include <sstream>
+
+// funcion for hashing password using sha256
+std::string hashPassword(const std::string &password) {
+    unsigned char hash[SHA256_DIGEST_LENGTH];
+
+    // calculating hash
+    SHA256(reinterpret_cast<const unsigned char*>(password.c_str()), password.size(), hash);
+
+    // reinterpreter as hex string
+    std::stringstream ss;
+    for (int i = 0; i < SHA256_DIGEST_LENGTH; ++i) {
+        ss << std::setw(2) << std::setfill('0') << std::hex << static_cast<int>(hash[i]);
+    }
+
+    return ss.str();
+}