added check version support to remote mounts

CHANGELOG.md

@@ -25,6 +25,7 @@
 
 ### Changes from v2.0.7-release
 
+* Added check version support to remote mounts
 * Fixed handling of `FALLOC_FL_KEEP_SIZE` on Linux
 * Fixed intermittent client hang on remote mount server disconnect
 

repertory/librepertory/include/comm/packet/packet_client.hpp

@@ -68,7 +68,8 @@ private:
 
   [[nodiscard]] auto get_client() -> std::shared_ptr<client>;
 
-  [[nodiscard]] auto handshake(client &cli) const -> bool;
+  [[nodiscard]] auto handshake(client &cli, std::uint32_t &min_version) const
+      -> bool;
 
   void put_client(std::shared_ptr<client> &cli);
 
@@ -78,6 +79,9 @@ private:
   void resolve();
 
 public:
+  [[nodiscard]] auto check_version(std::uint32_t client_version,
+                                   std::uint32_t &min_version) -> api_error;
+
   [[nodiscard]] auto send(std::string_view method, std::uint32_t &service_flags)
       -> packet::error_type;
 

repertory/librepertory/include/utils/utils.hpp

@@ -41,6 +41,9 @@ create_rocksdb(const app_config &cfg, const std::string &name,
 [[nodiscard]] auto create_volume_label(provider_type prov) -> std::string;
 
 [[nodiscard]] auto get_attributes_from_meta(const api_meta_map &meta) -> DWORD;
+
+[[nodiscard]] auto get_version_number(std::string_view version)
+    -> std::uint32_t;
 } // namespace utils
 } // namespace repertory
 

repertory/librepertory/src/comm/packet/packet_client.cpp

@@ -27,7 +27,6 @@
 #include "utils/collection.hpp"
 #include "utils/common.hpp"
 #include "utils/error_utils.hpp"
-#include "version.hpp"
 
 using namespace repertory::comm;
 
@@ -58,7 +57,8 @@ void packet_client::close(client &cli) {
 
     boost::system::error_code err;
     [[maybe_unused]] auto res = cli.socket.close(err);
-  } catch (...) {
+  } catch (const std::exception &e) {
+    utils::error::raise_error(function_name, e, "connection handshake failed");
   }
 }
 
@@ -76,6 +76,39 @@ void packet_client::close_all() {
   unique_id_ = utils::create_uuid_string();
 }
 
+auto packet_client::check_version(std::uint32_t client_version,
+                                  std::uint32_t &min_version) -> api_error {
+  try {
+    min_version = 0U;
+
+    boost::asio::io_context ctx{};
+    auto resolve_results = tcp::resolver(ctx).resolve(
+        cfg_.host_name_or_ip, std::to_string(cfg_.api_port));
+
+    client cli(ctx);
+    connect_with_deadline(ctx, cli.socket, resolve_results,
+                          std::chrono::milliseconds(cfg_.conn_timeout_ms));
+
+    cli.socket.set_option(boost::asio::ip::tcp::no_delay(true));
+    cli.socket.set_option(boost::asio::socket_base::linger(false, 0));
+    cli.socket.set_option(boost::asio::socket_base::keep_alive(true));
+
+    if (not handshake(cli, min_version)) {
+      return api_error::comm_error;
+    }
+
+    if (client_version < min_version) {
+      return api_error::incompatible_version;
+    }
+
+    return api_error::success;
+  } catch (const std::exception &e) {
+    utils::error::raise_error(function_name, e, "connection handshake failed");
+  }
+
+  return api_error::error;
+}
+
 void packet_client::connect(client &cli) {
   try {
     resolve();
@@ -87,7 +120,8 @@ void packet_client::connect(client &cli) {
     cli.socket.set_option(boost::asio::socket_base::linger(false, 0));
     cli.socket.set_option(boost::asio::socket_base::keep_alive(true));
 
-    if (not handshake(cli)) {
+    std::uint32_t min_version{};
+    if (not handshake(cli, min_version)) {
       close(cli);
       return;
     }
@@ -131,14 +165,18 @@ auto packet_client::get_client() -> std::shared_ptr<packet_client::client> {
   return nullptr;
 }
 
-auto packet_client::handshake(client &cli) const -> bool {
+auto packet_client::handshake(client &cli, std::uint32_t &min_version) const
+    -> bool {
   REPERTORY_USES_FUNCTION_NAME();
 
   try {
+    min_version = 0U;
+
     data_buffer buffer;
     {
       packet tmp;
-      tmp.encode_top(utils::generate_random_string(packet_nonce_size));
+      tmp.encode(utils::get_version_number(REPERTORY_MIN_REMOTE_VERSION));
+      tmp.encode(utils::generate_random_string(packet_nonce_size));
       tmp.to_buffer(buffer);
     }
 
@@ -146,6 +184,7 @@ auto packet_client::handshake(client &cli) const -> bool {
                              boost::asio::buffer(buffer),
                              std::chrono::milliseconds(cfg_.recv_timeout_ms));
     packet response(buffer);
+    response.decode(min_version);
     response.encrypt(cfg_.encryption_token, false);
     response.to_buffer(buffer);
 
@@ -154,7 +193,7 @@ auto packet_client::handshake(client &cli) const -> bool {
                             std::chrono::milliseconds(cfg_.send_timeout_ms));
     return true;
   } catch (const std::exception &e) {
-    repertory::utils::error::raise_error(function_name, e, "handlshake failed");
+    utils::error::raise_error(function_name, e, "handlshake failed");
   }
 
   return false;

repertory/librepertory/src/comm/packet/packet_server.cpp

@@ -32,12 +32,12 @@
 #include "types/repertory.hpp"
 #include "utils/error_utils.hpp"
 #include "utils/timeout.hpp"
+#include "utils/utils.hpp"
 
 using namespace repertory::comm;
 using std::thread;
 
 namespace repertory {
-
 packet_server::packet_server(std::uint16_t port, std::string token,
                              std::uint8_t pool_size, closed_callback closed,
                              message_handler_callback message_handler)
@@ -91,7 +91,8 @@ auto packet_server::handshake(std::shared_ptr<connection> conn) const -> bool {
 
     data_buffer buffer;
     packet request;
-    request.encode_top(conn->nonce);
+    request.encode(utils::get_version_number(REPERTORY_MIN_REMOTE_VERSION));
+    request.encode(conn->nonce);
     request.to_buffer(buffer);
     auto to_read{buffer.size() + utils::encryption::encryption_header_size};
 

repertory/librepertory/src/utils/utils.cpp

@@ -19,8 +19,6 @@
   OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   SOFTWARE.
 */
-#include "rocksdb/table.h"
-
 #include "utils/utils.hpp"
 
 #include "app_config.hpp"
@@ -90,4 +88,13 @@ auto create_volume_label(provider_type prov) -> std::string {
 auto get_attributes_from_meta(const api_meta_map &meta) -> DWORD {
   return static_cast<DWORD>(utils::string::to_uint32(meta.at(META_ATTRIBUTES)));
 }
+
+auto get_repertory_version_number(std::string_view version) -> std::uint32_t {
+  auto parts = utils::string::split(version, '-', false);
+  parts = utils::string::split(parts.at(0U), '.', false);
+
+  return (utils::string::to_uint32(parts.at(0U)) << 24U) |
+         (utils::string::to_uint32(parts.at(1U)) << 16U) |
+         (utils::string::to_uint32(parts.at(2U)) << 8U);
+}
 } // namespace repertory::utils

repertory/repertory/include/cli/check_version.hpp

@@ -23,16 +23,40 @@
 #define REPERTORY_INCLUDE_CLI_CHECK_VERSION_HPP_
 
 #include "cli/common.hpp"
+#include "comm/packet/packet_client.hpp"
+#include "utils/utils.hpp"
+#include "version.cpp"
 
 namespace repertory::cli::actions {
-[[nodiscard]] inline auto check_version(std::vector<const char *> /* args */,
+[[nodiscard]] inline auto
-                                        const std::string &data_directory,
+check_version(const std::string &data_directory, provider_type prov,
-                                        provider_type prov,
+              const std::string &remote_host, std::uint16_t remote_port)
-                                        const std::string & /*unique_id*/,
+    -> exit_code {
-                                        std::string /*user*/,
+  if (prov == provider_type::remote) {
-                                        std::string /*password*/) -> exit_code {
+    app_config config(prov, data_directory);
+    auto remote_cfg = config.get_remote_config();
+    remote_cfg.host_name_or_ip = remote_host;
+    remote_cfg.api_port = remote_port;
+    config.set_remote_config(remote_cfg);
+    packet_client client(config.get_remote_config());
+
+    std::uint32_t min_version{};
+    auto client_version = utils::get_version_number(project_get_version());
+    auto ret = client.check_version(client_version, min_version);
+    if (ret == api_error::success) {
+      fmt::println("0\nSuccess:\n\tRequired: {}\n\tActual: {}", min_version,
+                   client_version);
+    } else {
+      fmt::println("1\nFailed:\n\tRequired: {}\n\tActual: {}", min_version,
+                   client_version);
+    }
+
+    return ret;
+  }
+
   if (prov != provider_type::sia) {
-    fmt::println("Success:\n\tNo specific version is required for {} providers",
+    fmt::println(
+        "0\nSuccess:\n\tNo specific version is required for {} providers",
         app_config::get_provider_display_name(prov));
     return exit_code::success;
   }

repertory/repertory/main.cpp

@@ -113,6 +113,7 @@ auto main(int argc, char **argv) -> int {
                                                             '_'),
                             })
                       : utils::path::absolute(data_directory);
+
             } catch (const std::exception &e) {
               std::cerr << (e.what() == nullptr ? "Unable to parse port"
                                                 : e.what())
@@ -145,6 +146,11 @@ auto main(int argc, char **argv) -> int {
       }
     }
 
+    if (utils::cli::has_option(args,
+                               utils::cli::options::check_version_option)) {
+      ret = static_cast<std::int32_t>(utils::cli::check_version(
+          data_directory, prov, remote_host, remote_port));
+    } else {
       int mount_result{};
       if (res == exit_code::success) {
         res = exit_code::option_not_found;
@@ -154,8 +160,8 @@ auto main(int argc, char **argv) -> int {
              idx++) {
           try {
             res = cli::actions::perform_action(
-              utils::cli::options::option_list[idx], args, data_directory, prov,
+                utils::cli::options::option_list[idx], args, data_directory,
-              unique_id, user, password);
+                prov, unique_id, user, password);
           } catch (const std::exception &ex) {
             res = exit_code::exception;
           } catch (...) {
@@ -172,6 +178,7 @@ auto main(int argc, char **argv) -> int {
       ret = ((res == exit_code::mount_result) ? mount_result
                                               : static_cast<std::int32_t>(res));
     }
+  }
 
   repertory::project_cleanup();
   return ret;