some refactoring

sunshine/confighttp.cpp

@@ -361,7 +361,8 @@ void savePassword(resp_https_t response, req_https_t request) {
       pt::write_json(config::sunshine.credentials_file, fileTree);
       http::reload_user_creds(config::sunshine.credentials_file);
       outputTree.put("status", true);
-    } else {
+    }
+    else {
       outputTree.put("status", false);
       outputTree.put("error", "Invalid Current Credentials");
     }

sunshine/crypto.cpp

@@ -340,21 +340,13 @@ void md_ctx_destroy(EVP_MD_CTX *ctx) {
   EVP_MD_CTX_destroy(ctx);
 }
 
-std::string rand_string(std::size_t bytes) {
+std::string rand_alphabet(std::size_t bytes, const std::string_view &alphabet) {
-  std::string alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!%&()=-";
+  auto value = rand(bytes);
-  std::string value    = rand(bytes);
+
   for(std::size_t i = 0; i != value.size(); ++i) {
     value[i] = alphabet[value[i] % alphabet.length()];
   }
   return value;
 }
 
-std::string hash_hexstr(const std::string_view &plaintext) {
-  sha256_t hashBytes = crypto::hash(plaintext);
-  std::ostringstream hashStream;
-  hashStream << std::hex << std::setfill('0');
-  std::for_each(hashBytes.cbegin(), hashBytes.cend(), [&](int c) { hashStream << std::setw(2) << c; });
-  std::string hashString = hashStream.str();
-  return hashString;
-}
 } // namespace crypto

sunshine/crypto.h

@@ -36,7 +36,7 @@ using bio_t            = util::safe_ptr<BIO, BIO_free_all>;
 using pkey_t           = util::safe_ptr<EVP_PKEY, EVP_PKEY_free>;
 
 sha256_t hash(const std::string_view &plaintext);
-std::string hash_hexstr(const std::string_view &plaintext);
+
 aes_t gen_aes_key(const std::array<uint8_t, 16> &salt, const std::string_view &pin);
 
 x509_t x509(const std::string_view &x);
@@ -52,7 +52,8 @@ creds_t gen_creds(const std::string_view &cn, std::uint32_t key_bits);
 std::string_view signature(const x509_t &x);
 
 std::string rand(std::size_t bytes);
-std::string rand_string(std::size_t bytes);
+std::string rand_alphabet(std::size_t bytes,
+  const std::string_view &alphabet = std::string_view { "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!%&()=-" });
 
 class cert_chain_t {
 public:

sunshine/httpcommon.cpp

@@ -68,8 +68,8 @@ int generate_user_creds(const std::string &file) {
   pt::ptree outputTree;
   try {
     std::string username      = "sunshine";
-    std::string plainPassword = crypto::rand_string(16);
+    std::string plainPassword = crypto::rand_alphabet(16);
-    std::string salt          = crypto::rand_string(16);
+    std::string salt          = crypto::rand_alphabet(16);
     outputTree.put("username", "sunshine");
     outputTree.put("salt", salt);
     outputTree.put("password", util::hex(crypto::hash(plainPassword + salt)).to_string());