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dropshell/source/src/commands/exec.cpp
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exec command, and remote execution improvements!
2025-09-13 07:28:00 +12:00

137 lines
5.1 KiB
C++

#include "command_registry.hpp"
#include "config.hpp"
#include "utils/utils.hpp"
#include "utils/directories.hpp"
#include "utils/execute.hpp"
#include "shared_commands.hpp"
#include "servers.hpp"
#include "services.hpp"
#include "templates.hpp"
#include "utils/output.hpp"
#include <libassert/assert.hpp>
namespace dropshell
{
int exec_handler(const CommandContext &ctx);
static std::vector<std::string> exec_name_list = {"exec"};
// Static registration
struct ExecCommandRegister
{
ExecCommandRegister()
{
CommandRegistry::instance().register_command({exec_name_list,
exec_handler,
shared_commands::std_autocomplete,
false, // hidden
true, // requires_config
true, // requires_install
3, // min_args (server, service, command)
-1, // max_args (unlimited for command with args)
"exec SERVER SERVICE COMMAND [ARGS...]",
"Execute a command on a server within a service environment.",
R"(
exec SERVER SERVICE COMMAND [ARGS...] Execute a command in the service's environment.
This command runs a command on the remote server with the service's environment
variables loaded (including those from service.env and the usual variables).
The command is executed in the service's template directory context.
)"});
}
} exec_command_register;
int exec_handler(const CommandContext &ctx)
{
if (ctx.args.size() < 3)
{
error << "Server name, service name, and command are required" << std::endl;
return 1;
}
std::string server = safearg(ctx.args, 0);
std::string service = safearg(ctx.args, 1);
std::string command = safearg(ctx.args, 2);
// Collect any additional arguments for the command
std::vector<std::string> command_args;
for (size_t i = 3; i < ctx.args.size(); ++i)
{
command_args.push_back(ctx.args[i]);
}
// Validate server
ServerConfig server_env(server);
if (!server_env.is_valid())
{
error << "Server " << server << " is not valid" << std::endl;
return 1;
}
// Validate service name
if (!legal_service_name(service))
{
error << "Service name contains illegal characters: " << service << std::endl;
return 1;
}
// Get service info to validate it exists
LocalServiceInfo sinfo = get_service_info(server, service);
if (!SIvalid(sinfo))
{
error << "Service " << service << " is not valid on server " << server << std::endl;
return 1;
}
// Get the user for this service
std::string user = server_env.get_user_for_service(service);
// Get all service environment variables
std::map<std::string, std::string> env_vars;
if (!get_all_service_env_vars(server, service, env_vars))
{
error << "Failed to get environment variables for service " << service << std::endl;
return 1;
}
// Add HOST_NAME like other commands do
env_vars["HOST_NAME"] = server_env.get_SSH_HOST();
// Get the remote service template path for working directory
std::string remote_service_template_path = remotepath(server, user).service_template(service);
// Build the command string with arguments
std::string full_command = command;
for (const auto &arg : command_args)
{
full_command += " " + quote(dequote(trim(arg)));
}
// Create the command structure with environment variables
// Note: execute_ssh_command will automatically use bb64 to encode and execute this safely
sCommand scommand(remote_service_template_path, full_command, env_vars);
// Execute the command on the remote server
info << "Executing command on " << server << "/" << service << ": " << command;
if (!command_args.empty())
{
rawout << " with args:";
for (const auto &arg : command_args)
rawout << " " << arg;
}
rawout << std::endl;
bool success = execute_ssh_command(server_env.get_SSH_INFO(user), scommand, cMode::Interactive);
if (!success)
{
error << "Command execution failed" << std::endl;
return 1;
}
return 0;
}
} // namespace dropshell