Add wg2nd-web sourceHEADmain

1 files changed, 91 insertions, 0 deletions

diff --git a/src/controllers/browser.cpp b/src/controllers/browser.cpp
new file mode 100644
index 0000000..e2a500b
--- /dev/null
+++ b/src/controllers/browser.cpp
@@ -0,0 +1,91 @@
+#include "models/wg2nd.hpp"
+
+#include <emscripten/bind.h>
+
+#include <string>
+#include <sstream>
+
+void print_config(std::ostream & ss, wg2nd::SystemdFilespec const & filespec, bool privileged) {
+	if(privileged) {
+		ss << "touch " << filespec.name << "\n\n";
+
+		ss << "chown root:systemd-network " << filespec.name << "\n\n";
+		ss << "chmod 0640 " << filespec.name << "\n\n";
+	}
+
+	ss << "cat >" << filespec.name << " <<_EOF\n"
+	          << filespec.contents
+	          << "_EOF\n";
+
+	ss << "\n";
+}
+
+std::string wg2nd_cmdseq(std::string const & interface_name, std::string const & wg_config) {
+	std::istringstream wg_stream { wg_config };
+	std::ostringstream bash_config_cmds;
+
+	wg2nd::SystemdConfig cfg;
+	try {
+		cfg = wg2nd::wg2nd(interface_name, wg_stream, "/etc/systemd/network/", {});
+	} catch(wg2nd::ParsingException const & e) {
+		bash_config_cmds << "parsing error: ";
+
+		if(e.line_no().has_value()) {
+			bash_config_cmds << "line " << e.line_no().value() << ": ";
+		}
+
+		bash_config_cmds << e.what() << "\n";
+
+		return bash_config_cmds.str();
+	} catch(wg2nd::ConfigurationException const & e) {
+		bash_config_cmds << "configuration error: " << e.what() << "\n";
+
+		return bash_config_cmds.str();
+	}
+
+	bash_config_cmds << "# Disable history to prevent private key leakage\n";
+	bash_config_cmds << "set +o history\n";
+	bash_config_cmds << "\n";
+
+	bash_config_cmds << "cd /etc/systemd/network\n\n";
+
+	bash_config_cmds << "# Create network device\n";
+	print_config(bash_config_cmds, cfg.netdev, false);
+	bash_config_cmds << "\n";
+
+	bash_config_cmds << "# Configure network\n";
+	print_config(bash_config_cmds, cfg.network, false);
+	bash_config_cmds << "\n";
+
+	bash_config_cmds << "# Create and protect private keyfile\n";
+	print_config(bash_config_cmds, cfg.private_keyfile, true);
+	bash_config_cmds << "\n";
+
+	if(cfg.symmetric_keyfiles.size() > 0) {
+		bash_config_cmds << "# Create and protect private preshared keyfile\n";
+	}
+	for(wg2nd::SystemdFilespec const & spec : cfg.symmetric_keyfiles) {
+		print_config(bash_config_cmds, spec, true);
+		bash_config_cmds << "\n";
+	}
+
+	bash_config_cmds << "# Re-enable history tracking\n";
+	bash_config_cmds << "set -o history\n";
+
+	bash_config_cmds << "\n";
+
+	if(cfg.warnings.size() > 0) {
+		bash_config_cmds << "# NOTE: the conversion tool emitted warnings.\n";
+		for(std::string const & warning : cfg.warnings) {
+			bash_config_cmds << "# warning:" << warning << "\n";
+		}
+	}
+
+	return bash_config_cmds.str();
+}
+
+
+EMSCRIPTEN_BINDINGS(wg2nd) {
+	emscripten::function("wg2nd_cmdseq", &wg2nd_cmdseq);
+}
+