PAM/ssh/include/rublon/configuration.hpp

@@ -1,14 +1,14 @@
 #pragma once
 
+#include <cctype>
+#include <rublon/memory.hpp>
 #include <rublon/error.hpp>
 #include <rublon/static_string.hpp>
 #include <rublon/utils.hpp>
-#include <type_traits>
 
-template < typename T >
-constexpr bool is_static_string_v = std::is_base_of_v< rublon::details::StaticStringBase, T >;
-
-static_assert(is_static_string_v< rublon::StaticString< 32 > >);
+#include <fstream>
+#include <optional>
+#include <string>
 
 namespace rublon {
 class ConfigurationFactory;
@@ -16,11 +16,16 @@ class ConfigurationFactory;
 enum class FailMode { bypass, deny };
 
 class Configuration {
+  private:
+    std::pmr::memory_resource * memoryResource;
+
   public:
+    Configuration() : memoryResource{memory::default_resource()} {}
+
     // change to StaticString
-    StaticString< 32 > systemToken{};
-    StaticString< 32 > secretKey{};
-    StaticString< 4096 > apiServer{};
+    std::pmr::string systemToken{memoryResource};
+    std::pmr::string secretKey{memoryResource};
+    std::pmr::string apiServer{memoryResource};
 
     int prompt{};
     bool enablePasswdEmail{};
@@ -29,168 +34,36 @@ class Configuration {
     FailMode failMode{};
     bool nonInteractiveMode{};
 
-    StaticString< 8 > proxyType{};
-    StaticString< 4096 > proxyServer{};
-    StaticString< 256 > proxyUsername{};
-    StaticString< 256 > proxyPass{};
-    int proxyPort{};
-    bool proxyAuthRequired{};
-    bool proxyEnabled{};
+    std::optional< std::pmr::string > proxyType{memoryResource};
+    std::optional< std::pmr::string > proxyServer{memoryResource};
+    std::optional< std::pmr::string > proxyUsername{memoryResource};
+    std::optional< std::pmr::string > proxyPass{memoryResource};
+    std::optional< int > proxyPort{};
+    bool proxyAuthRequired{}; // defaulted
+    bool proxyEnabled{};      // defaulted
 };
 
-namespace {
-    template < class C, typename T >
-    T member_ptr_t(T C::*v);
 
-    template < typename T >
-    tl::expected< T, ConfigurationError > to(std::string_view);
-
-    template < class T >
-    auto to_string(std::string_view arg) -> tl::expected< T, ConfigurationError > {
-        T value{};
-        assert(arg.size() <= (value.size() - 1));
-        std::memcpy(value.data(), arg.data(), arg.size());
-        return value;
-    }
-
-    template <>
-    auto to(std::string_view arg) -> tl::expected< bool, ConfigurationError > {
-        return conv::to_bool(arg);
-    }
-    template <>
-    auto to(std::string_view arg) -> tl::expected< int, ConfigurationError > {
-        return conv::to_uint32(arg).value_or(0);
-    }
-
-    template <>
-    auto to(std::string_view arg) -> tl::expected< FailMode, ConfigurationError > {
-        if(arg == "bypass")
-            return FailMode::bypass;
-        if(arg == "deny")
-            return FailMode::deny;
-        return tl::unexpected{ConfigurationError{ConfigurationError::ErrorClass::BadFailMode}};
-    }
-
-    template < typename T >
-    auto parse(std::string_view arg) -> tl::expected< T, ConfigurationError > {
-        if(arg.empty()) {
-            return tl::unexpected{ConfigurationError::ErrorClass::Empty};
-        } else {
-            if constexpr(is_static_string_v< T >) {
-                return to_string< T >(arg);
-            } else {
-                return to< T >(arg);
-            }
-        }
-    }
-
-} // namespace
-struct Entry {
-    enum class Source { UserInput, DefaultValue };
-    template < auto member >
-    static constexpr auto make_read_function() {
-        using pType = decltype(member_ptr_t(member));
-
-        return
-          [](const Entry * _this, Configuration * configuration, std::string_view userInput) -> tl::expected< Source, ConfigurationError > {
-              const auto setDefaultValue = [&](const ConfigurationError & error) -> tl::expected< Source, ConfigurationError > {
-                  log(LogLevel::Warning, "applying user provided value for %s parameter, faild with %s", _this->name, error.what());
-                  if(_this->defaultValue != nullptr) {
-                      configuration->*member = parse< pType >(_this->defaultValue).value();
-                      return Source::DefaultValue;
-                  } else {
-                      log(LogLevel::Error, "parameter %s has not been found and has no default value", _this->name);
-                      if(userInput.empty())
-                          return tl::unexpected{ConfigurationError::ErrorClass::RequiredValueNotFound};
-                      else
-                          return tl::unexpected{ConfigurationError::ErrorClass::BadInput};
-                  }
-              };
-
-              const auto saveValue = [&](const auto & value) -> tl::expected< Source, ConfigurationError > {
-                  configuration->*member = value;
-                  return Source::UserInput;
-              };
-
-              return parse< pType >(userInput).and_then(saveValue).or_else(setDefaultValue);
-          };
-    }
-
-    const char * name;
-    const char * defaultValue;
-    tl::expected< Source, ConfigurationError > (*_read)(const Entry * _this, Configuration * configuration, std::string_view userInput);
-
-    bool read(Configuration * configuration, std::optional< std::string_view > userInput) const {
-        constexpr const auto emptyString = "";
-        const auto logStored             = [&](const auto & source) -> tl::expected< Source, ConfigurationError > {
-            rublon::log(LogLevel::Debug,
-              "Configuration parameter '%s' was set to '%s'%s",
-              this->name,
-              this->defaultValue,
-              source == Source::DefaultValue ? " (default)" : "");
-            return source;
-        };
-
-        const auto logError = [&](const auto & error) -> tl::expected< Source, ConfigurationError > {
-            rublon::log(LogLevel::Error,
-              "Configuration parameter '%s' has no default value and is not provided in user configuraion, aborting",
-              this->name);
-            return tl::unexpected{error};
-        };
-
-        return _read(this, configuration, userInput.value_or(emptyString)).and_then(logStored).or_else(logError).has_value();
-    }
-};
-
-template < auto member >
-constexpr auto make_entry(const char * name, const char * defaultValue) {
-    return Entry{name, defaultValue, Entry::make_read_function< member >()};
-}
-
-constexpr static inline std::array< Entry, 16 > configurationVariables = {
-  make_entry< &Configuration::logging >("logging", "true"),
-  make_entry< &Configuration::systemToken >("systemToken", nullptr),
-  make_entry< &Configuration::secretKey >("secretKey", nullptr),
-  make_entry< &Configuration::apiServer >("rublonApiServer", nullptr),
-  make_entry< &Configuration::prompt >("prompt", "1"),
-  make_entry< &Configuration::enablePasswdEmail >("enablePasswdEmail", "true"),
-  make_entry< &Configuration::autopushPrompt >("autopushPrompt", "false"),
-  make_entry< &Configuration::failMode >("failMode", "deny"),
-  make_entry< &Configuration::nonInteractiveMode >("nonInteractiveMode", "false"),
-
-  make_entry< &Configuration::proxyType >("proxyType", nullptr),
-  make_entry< &Configuration::proxyServer >("proxyServer", nullptr),
-  make_entry< &Configuration::proxyUsername >("proxyUsername", nullptr),
-  make_entry< &Configuration::proxyPass >("proxyPass", nullptr),
-  make_entry< &Configuration::proxyPort >("proxyPort", "8080"),
-  make_entry< &Configuration::proxyAuthRequired >("proxyAuthRequired", "false"),
-  make_entry< &Configuration::proxyEnabled >("proxyEnabled", "false") //
-};
-
-class ConfigurationFactory {
+class ConfigurationReader {
   public:
-    ConfigurationFactory() = default;
+    ConfigurationReader(std::pmr::memory_resource * memResource = memory::default_resource()) : memoryResource(memResource) {}
 
-    std::optional< Configuration > systemConfig() {
-        memory::MonotonicStackResource< 16 * 1024 > stackResource;
-        Configuration configuration{};
-
-        std::ifstream file(std::filesystem::path{"/etc/rublon.config"});
+    // Load config from file path
+    bool loadFromFile(const std::string & filepath) {
+        using namespace memory::literals;
+        memory::MonotonicStackResource< 8_kB > stackResource;
+        std::ifstream file(filepath);
         if(not file.good())
-            return std::nullopt;
+            return false;
 
         std::pmr::string line{&stackResource};
-        line.reserve(100);
-        std::pmr::map< std::pmr::string, std::pmr::string > parameters{&stackResource};
-
-        const auto readParameterByName = [&](std::string_view name) -> std::optional< std::string_view > {
-            return parameters.count(name.data()) ? std::optional< std::string_view >{parameters.at(name.data())} : std::nullopt;
-        };
+        line.reserve(8000); // allocate full stack to line
 
         while(std::getline(file, line)) {
-            std::pmr::string key{&stackResource};
-            std::pmr::string value{&stackResource};
+            std::pmr::string key{memoryResource};
+            std::pmr::string value{memoryResource};
 
+            details::trimInPlace(line);
             if(!line.length())
                 continue;
 
@@ -201,15 +74,147 @@ class ConfigurationFactory {
             key           = line.substr(0, posEqual);
             value         = line.substr(posEqual + 1);
 
-            parameters[std::move(key)] = std::move(value);
+            keyValues[std::move(key)] = std::move(value);
         }
 
-        for(const auto & entry : configurationVariables) {
-            if(not entry.read(&configuration, readParameterByName(entry.name)))
+        return true;
+    }
+
+    // Load values into Configuration object, with defaults provided
+    tl::expected< bool, ConfigurationError > applyTo(Configuration & config) {
+        // Helper lambdas for conversion
+        using string = std::pmr::string;
+        
+        auto getStringOpt = [&](const string & key) -> std::optional< std::pmr::string > {
+            auto it = keyValues.find(key);
+            if(it == keyValues.end()) {
                 return std::nullopt;
+            }
+            return string{it->second.data(), it->second.size(), memoryResource};
+        };
+
+        auto getStringReq = [&](const string & key) -> tl::expected< std::pmr::string, ConfigurationError > {
+            auto val = getStringOpt(key);
+            if(val.has_value())
+                return std::move(val.value());
+            return tl::unexpected{ConfigurationError::ErrorClass::RequiredValueNotFound};
+        };
+
+        auto getInt = [&](const string & key) -> std::optional< int > {
+            auto it = keyValues.find(key);
+            if(it == keyValues.end())
+                return std::nullopt;
+            return conv::to_uint32opt(it->second);
+        };
+
+        auto getBool = [&](const string & key) -> std::optional< bool > {
+            memory::MonotonicStackResource< 64 > memoryResource;
+            auto it = keyValues.find(key);
+            if(it == keyValues.end())
+                return std::nullopt;
+            
+            if (it->second.size() > 5 ){
+                log(LogLevel::Warning, "Configuration value %s is too long, please check", key.c_str());
+                return std::nullopt;
+            }
+            
+            std::pmr::string val{&memoryResource};
+            val = it->second;
+            std::transform(val.begin(), val.end(), val.begin(), [](unsigned char c) { return static_cast< char >(std::tolower(c)); });
+
+            if(val == "1" || val == "true" || val == "yes" || val == "on")
+                return true;
+            if(val == "0" || val == "false" || val == "no" || val == "off")
+                return false;
+            return std::nullopt;
+        };
+
+        auto getFailMode = [&](const string & key) -> std::optional< FailMode > {
+            auto it = keyValues.find(key);
+            if(it == keyValues.end())
+                return std::nullopt;
+            auto val = it->second;
+            if(val == "bypass")
+                return FailMode::bypass;
+            if(val == "deny")
+                return FailMode::deny;
+
+            return std::nullopt;
+        };
+
+        // Reading required fields
+        if(auto val = getStringReq("systemToken"); not val.has_value())
+            return tl::unexpected{val.error()};
+        else
+            config.systemToken = std::move(val.value());
+
+        if(auto val = getStringReq("secretKey"); not val.has_value())
+            return tl::unexpected{val.error()};
+        else
+            config.secretKey = std::move(val.value());
+
+        if(auto val = getStringReq("rublonApiServer"); not val.has_value())
+            return tl::unexpected{val.error()};
+        else
+            config.apiServer = std::move(val.value());
+
+        // optional
+        config.prompt             = getInt("prompt").value_or(1);
+        config.enablePasswdEmail  = getBool("enablePasswdEmail").value_or(true);
+        config.logging            = getBool("logging").value_or(true);
+        config.autopushPrompt     = getBool("autopushPrompt").value_or(false);
+        config.nonInteractiveMode = getBool("nonInteractiveMode").value_or(false);
+        config.failMode           = getFailMode("failMode").value_or(FailMode::deny);
+
+        // reading proxy configuration
+        config.proxyEnabled = getBool("proxyEnabled").value_or(false);
+        config.proxyType    = getStringOpt("proxyType");
+        config.proxyServer  = getStringOpt("proxyServer");
+        if(config.proxyEnabled) {
+            if(not config.proxyType) {
+                log(LogLevel::Error, "Proxy is enabled but proxy type is not set");
+                return tl::unexpected{ConfigurationError::ErrorClass::BadConfiguration};
+            }
+            if(not config.proxyServer) {
+                log(LogLevel::Error, "Proxy is enabled but proxy server is not set");
+                return tl::unexpected{ConfigurationError::ErrorClass::BadConfiguration};
+            }
+        }
+        config.proxyAuthRequired = getBool("proxyAuthRequired").value_or(false);
+        config.proxyUsername     = getStringOpt("proxyUsername");
+        config.proxyPass         = getStringOpt("proxyPass");
+        if(config.proxyAuthRequired) {
+            if(not config.proxyUsername) {
+                log(LogLevel::Error, "Proxy auth is required but proxy proxy username is not set");
+                return tl::unexpected{ConfigurationError::ErrorClass::BadConfiguration};
+            }
+            if(not config.proxyPass) {
+                log(LogLevel::Error, "Proxy is enabled but proxy password is not set,");
+                return tl::unexpected{ConfigurationError::ErrorClass::BadConfiguration};
+            }
         }
 
-        return configuration;
+        config.proxyPort = getInt("proxyPort").value_or(8080);
+        return true;
+    }
+
+  private:
+    std::pmr::memory_resource * memoryResource;
+    std::pmr::map< std::pmr::string, std::pmr::string > keyValues{memoryResource};
+};
+
+class ConfigurationFactory {
+  public:
+    ConfigurationFactory() = default;
+
+    std::optional< Configuration > systemConfig() {
+        std::optional< Configuration > conf{Configuration{}};
+        ConfigurationReader reader;
+        reader.loadFromFile("/etc/rublon.config");
+        if(auto ok = reader.applyTo(conf.value()); not ok.has_value()){
+            return std::nullopt;
+        }
+        return conf.value();
     }
 };
 } // namespace rublon

PAM/ssh/include/rublon/core_handler.hpp

@@ -172,7 +172,8 @@ class CoreHandler : public CoreHandlerInterface< CoreHandler< HttpHandler > > {
 
         signRequest(request);
         std::pmr::string uri{&memoryResource};
-        uri += _config.apiServer.c_str();
+        uri.reserve(_config.apiServer.size() + path.size() + 1);
+        uri += _config.apiServer;
         uri += path.data();
 
         return http

PAM/ssh/include/rublon/curl.hpp

@@ -1,6 +1,7 @@
 #pragma once
 
 #include "rublon/memory.hpp"
+#include <cstddef>
 #include <rublon/error.hpp>
 #include <rublon/utils.hpp>
 #include <rublon/configuration.hpp>
@@ -11,6 +12,7 @@
 
 namespace rublon {
 
+
 namespace {
     size_t WriteMemoryCallback(void * contents, size_t size, size_t nmemb, void * userp) {
         const size_t realsize = size * nmemb;
@@ -60,7 +62,7 @@ class CURL {
     tl::expected< std::reference_wrapper< Response >, ConnectionError >
     request(std::string_view uri, const Request & request, Response & response) const {
         using namespace memory::literals;
-        memory::Monotonic_16k_HeapResource memoryResource;
+        memory::Monotonic_8k_HeapResource memoryResource;
 
         std::pmr::string response_data{&memoryResource};
         response_data.reserve(4_kB);
@@ -73,16 +75,20 @@ class CURL {
         
         // Optional: Build full proxy URL if proxy is enabled
         if (_config.proxyEnabled) {
-            std::pmr::string proxyUrl{&memoryResource};
-            proxyUrl.reserve(4_kB);
+            // configuration reader check if proxy has needed fields
+            assert(_config.proxyType.has_value());
+            assert(_config.proxyServer.has_value());
             
+            std::pmr::string proxyUrl{&memoryResource};
+            proxyUrl.reserve(conservative_estimate(_config.proxyType, _config.proxyServer, _config.proxyPort) + 10);
+
             if (_config.proxyType == "http" || _config.proxyType == "https" || _config.proxyType == "socks4" || _config.proxyType == "socks5") {
-                proxyUrl = _config.proxyType.c_str();
+                proxyUrl = *_config.proxyType;
                 proxyUrl += "://";
-                proxyUrl += _config.proxyServer.c_str();
+                proxyUrl += *_config.proxyServer;
                 if (_config.proxyPort > 0) {
                     proxyUrl += ":";
-                    proxyUrl += std::to_string(_config.proxyPort);
+                    proxyUrl += std::to_string(*_config.proxyPort);
                 }
                 
                 curl_easy_setopt(curl.get(), CURLOPT_PROXY, proxyUrl.c_str());
@@ -96,12 +102,19 @@ class CURL {
                 }
                 
                 if (_config.proxyAuthRequired) {
+                    assert(_config.proxyUsername.has_value());
+                    assert(_config.proxyPass.has_value());
+
                     std::pmr::string proxyAuth{&memoryResource};
-                    proxyAuth.reserve(1_kB);
-                    _config.proxyUsername.c_str();
-                    proxyAuth += ":";
-                    proxyAuth += _config.proxyPass.c_str();
-                    
+                    proxyAuth.reserve(conservative_estimate(_config.proxyUsername->size() + _config.proxyPass->size()));
+
+                    proxyAuth += *_config.proxyUsername;
+                    if(_config.proxyPass->size()) {
+                        // can proxy have name but no pass? 
+                        proxyAuth += ":";
+                        proxyAuth += *_config.proxyPass;
+                    }
+
                     curl_easy_setopt(curl.get(), CURLOPT_PROXYUSERPWD, proxyAuth.c_str());
                 }
             }

PAM/ssh/include/rublon/error.hpp

@@ -15,12 +15,14 @@ class ConfigurationError {
         RequiredValueNotFound,
         BadFailMode,
         BadInput,
+        BadConfiguration,
         Empty
     };
     constexpr static auto errorClassPrettyName = make_array< std::string_view >( //
       "RequiredValueNotFound",
       "BadFailMode",
       "BadInput",
+      "BadConfiguration",
       "Empty");
     constexpr static auto prettyName           = "Configurtion Error";
 

PAM/ssh/include/rublon/finish.hpp

@@ -4,16 +4,17 @@
 #include <rublon/configuration.hpp>
 #include <rublon/json.hpp>
 #include <rublon/method/method_select.hpp>
+#include <string_view>
 #include <sys/utsname.h>
 
 namespace rublon {
 class Finish : public AuthenticationStep {
     const char * apiPath = "/api/transaction/credentials";
-    const std::string _accessToken;
+    const std::string_view _accessToken; // 
 
     void addAccessToken(Document & coreRequest) const {
         auto & alloc = coreRequest.GetAllocator();
-        coreRequest.AddMember("accessToken", Value{_accessToken.c_str(), alloc}, alloc);
+        coreRequest.AddMember("accessToken", Value{_accessToken.data(), alloc}, alloc);
     }
 
     tl::expected< bool, Error > returnOk(const Document & /*coreResponse*/) const {
@@ -23,7 +24,7 @@ class Finish : public AuthenticationStep {
   public:
     const char * name = "Finalization";
 
-    Finish(Session & session, std::string accessToken) : AuthenticationStep(session), _accessToken{std::move(accessToken)} {}
+    Finish(Session & session, std::string_view accessToken) : AuthenticationStep(session), _accessToken{accessToken} {}
 
     template < typename Hander_t >
     tl::expected< bool, Error > handle(const CoreHandlerInterface< Hander_t > & coreHandler) const {

PAM/ssh/include/rublon/init.hpp

@@ -43,12 +43,11 @@ class Init : public AuthenticationStep {
     }
 
     void addParams(Document & coreRequest, const Pam_t & pam) const {
-        memory::MonotonicStackResource< 1024 > stackResource;
-        std::pmr::string releaseInfo{&stackResource};
+        memory::MonotonicStackResource< 1024 > memoryResource;
         auto & alloc = coreRequest.GetAllocator();
 
-        const auto os = details::osName(&stackResource);
-        const auto host = details::hostname(&stackResource);
+        const auto os = details::osName(&memoryResource);
+        const auto host = details::hostname(&memoryResource);
 
         if(os == "unknown") {
             log(LogLevel::Warning, "No OS information available");

PAM/ssh/include/rublon/utils.hpp

@@ -1,5 +1,6 @@
 #pragma once
 
+#include <optional>
 #include <rublon/memory.hpp>
 #include <rublon/static_string.hpp>
 #include <rublon/stdlib.hpp>
@@ -158,6 +159,14 @@ namespace conv {
             return tl::make_unexpected(Error::OutOfRange);
         }
     }
+    
+    inline std::optional< std::uint32_t> to_uint32opt(std::string_view userinput) noexcept {
+        try {
+            return std::stoi(userinput.data());
+        } catch(...) {
+            return std::nullopt;
+        }
+    }
 } // namespace conv
 
 namespace details {
@@ -176,6 +185,23 @@ namespace details {
     static inline std::string_view trim(std::string_view s) {
         return ltrim(rtrim(s));
     }
+    
+    template<typename StrT>
+    void trimInPlace(StrT & s) {
+        // Remove leading whitespace
+        size_t start = 0;
+        while(start < s.size() && isspace(static_cast< unsigned char >(s[start])))
+            ++start;
+        
+               // Remove trailing whitespace
+        size_t end = s.size();
+        while(end > start && isspace(static_cast< unsigned char >(s[end - 1])))
+            --end;
+        
+        if(start > 0 || end < s.size()) {
+            s = s.substr(start, end - start);
+        }
+    }
 
     template < typename Headers >
     inline void headers(std::string_view data, Headers & headers) {
@@ -197,7 +223,7 @@ namespace details {
     }
 
     std::pmr::string hostname(std::pmr::memory_resource * mr) {
-        std::pmr::string hostname{512, '\0', mr};
+        std::pmr::string hostname{2048, '\0', mr};
         if(gethostname(hostname.data(), hostname.size()) != 0) {
             log(LogLevel::Warning, "Hostname is not available");
             return "";
@@ -207,18 +233,18 @@ namespace details {
     }
 
     std::pmr::string osName(std::pmr::memory_resource * mr) {
-        memory::MonotonicStackResource< 8 * 1024 > stackResource;
+        memory::Monotonic_8k_HeapResource memoryResource;
 
         std::ifstream file(std::filesystem::path{"/etc/os-release"});
         if(not file.good())
             return {"unknown", mr};
 
-        std::pmr::string line{&stackResource};
+        std::pmr::string line{&memoryResource};
+        std::pmr::string _key{&memoryResource};
+        std::pmr::string _value{&memoryResource};
         line.reserve(100);
-
+        
         while(std::getline(file, line)) {
-            std::pmr::string _key{&stackResource};
-            std::pmr::string _value{&stackResource};
 
             if(!line.length())
                 continue;
@@ -266,4 +292,29 @@ constexpr std::array< Out, sizeof...(Types) > make_array(Types... names) {
     return {std::forward< Types >(names)...};
 }
 
+template <typename T> std::size_t size_buffer(const T &item) {
+    using U = std::decay_t<T>;
+    if constexpr (std::is_same_v<U, const char *>) {
+        return strlen(item);
+    } else if constexpr(std::is_same_v< U, std::pmr::string > || std::is_same_v< U, std::string >) {
+        return item.size();
+    } else if constexpr(std::is_integral_v< U > || std::is_floating_point_v< U >) {
+        return std::numeric_limits<U>::digits;
+    }
+    return 0;
+}
+
+template <typename T> std::size_t size_buffer(const std::optional<T> &item) {
+    if(item.has_value())
+        return size_buffer(*item);
+    return 0;
+}
+
+// min + 10%
+template < typename... Args >
+std::size_t conservative_estimate(const Args &... args) {
+    auto min = (size_buffer(args) + ...);
+    return min + min * 10 / 100;
+}
+
 } // namespace rublon

PAM/ssh/include/rublon/websockets.hpp

@@ -44,10 +44,8 @@ class WebSocket {
     RublonEventData * currentEvent{nullptr};
 
   public:
-    WebSocket(const Configuration & config) : _config{config}, urlv{_config.get().apiServer.c_str(), _config.get().apiServer.size()} {
-        using namespace memory::literals;
-        memory::Monotonic_8k_HeapResource memoryResource;
-        const auto & cfg = _config.get();
+    WebSocket(const Configuration & config) : _config{config}, urlv{_config.get().apiServer} {
+        const auto & cfg = _config.get(); // only a alias to not use _config.get() all the time
 
         auto lws_log_emit = [](int level, const char * line) {
             LogLevel rlevel{};
@@ -77,23 +75,27 @@ class WebSocket {
         context = lws_create_context(&info);
 
         if(cfg.proxyEnabled && (cfg.proxyType == "http" || cfg.proxyType == "https")) {
+            assert(cfg.proxyType.has_value());
+            assert(cfg.proxyServer.has_value());
+            
+            memory::Monotonic_8k_HeapResource memoryResource;
             std::pmr::string proxyUrl{&memoryResource};
-            proxyUrl.reserve(4_kB);
+            proxyUrl.reserve(conservative_estimate(cfg.proxyUsername, cfg.proxyPass, cfg.proxyServer, cfg.proxyPort) + 10);
 
-            proxyUrl += cfg.proxyType.data();
+            proxyUrl += cfg.proxyType->data();
             proxyUrl += "://";
 
             if(cfg.proxyAuthRequired) {
-                proxyUrl += cfg.proxyUsername.c_str();
+                proxyUrl += *cfg.proxyUsername;
                 proxyUrl += ":";
-                proxyUrl += cfg.proxyPass.c_str();
+                proxyUrl += *cfg.proxyPass;
                 proxyUrl += "@";
             }
 
-            proxyUrl += cfg.proxyServer.c_str();
+            proxyUrl += *cfg.proxyServer;
             if(cfg.proxyPort > 0) {
                 proxyUrl += ":";
-                proxyUrl += std::to_string(cfg.proxyPort);
+                proxyUrl += std::to_string(*cfg.proxyPort);
             }
 
             // Set environment variable for libwebsockets to pick up
@@ -101,7 +103,6 @@ class WebSocket {
         }
 
         const std::string_view prefix = "https://";
-
         if(urlv.substr(0, prefix.size()) == prefix)
             urlv.remove_prefix(prefix.size());
 

PAM/ssh/lib/pam.cpp

@@ -83,9 +83,7 @@ pam_sm_authenticate(pam_handle_t * pamh, [[maybe_unused]] int flags, [[maybe_unu
 
     auto finalizeTransaction = [&](const AuthenticationStatus & status) mutable -> tl::expected< AuthenticationStatus, Error > {
         if(status.userAuthorized()) {
-            auto tok = std::string{status.accessToken().data()};
-            Finish finish{session.value(), std::move(tok)};
-            finish.handle(CH);
+            Finish{session.value(), status.accessToken()}.handle(CH);
         }
         return status;
     };
@@ -101,7 +99,7 @@ pam_sm_authenticate(pam_handle_t * pamh, [[maybe_unused]] int flags, [[maybe_unu
     {
         CheckApplication ca;
         const auto & config = session.value().config();
-        const auto ret      = ca.call(CH, {config.systemToken.data(), config.systemToken.size()}).or_else(mapError);
+        const auto ret      = ca.call(CH, config.systemToken).or_else(mapError);
         if(not ret.has_value()) {
             log(LogLevel::Error, "Check Application step failed, check configration");
             return PAM_MAXTRIES;