#include <stdint.h>#include <stdlib.h>#include <string.h> #if defined(_WIN32)#define CLIPROXY_EXPORT __declspec(dllexport)#else#define CLIPROXY_EXPORT __attribute__((visibility("default")))#endif #define ABI_VERSION 1 typedef struct {	void* ptr;	size_t len;} cliproxy_buffer; typedef int (*cliproxy_host_call_fn)(void*, const char*, const uint8_t*, size_t, cliproxy_buffer*);typedef void (*cliproxy_host_free_fn)(void*, size_t); typedef struct {	uint32_t abi_version;	void* host_ctx;	cliproxy_host_call_fn call;	cliproxy_host_free_fn free_buffer;} cliproxy_host_api; typedef int (*cliproxy_plugin_call_fn)(const char*, const uint8_t*, size_t, cliproxy_buffer*);typedef void (*cliproxy_plugin_free_fn)(void*, size_t);typedef void (*cliproxy_plugin_shutdown_fn)(void); typedef struct {	uint32_t abi_version;	cliproxy_plugin_call_fn call;	cliproxy_plugin_free_fn free_buffer;	cliproxy_plugin_shutdown_fn shutdown;} cliproxy_plugin_api; static const cliproxy_host_api* stored_host = NULL; static void write_response(cliproxy_buffer* response, const char* text) {	if (response == NULL || text == NULL) {		return;	}	size_t len = strlen(text);	void* ptr = malloc(len);	if (ptr == NULL) {		response->ptr = NULL;		response->len = 0;		return;	}	memcpy(ptr, text, len);	response->ptr = ptr;	response->len = len;} static void call_host(const char* method, const char* payload) {	if (stored_host == NULL || stored_host->call == NULL || method == NULL) {		return;	}	cliproxy_buffer response = {0};	const uint8_t* request = (const uint8_t*)payload;	size_t request_len = payload == NULL ? 0 : strlen(payload);	if (stored_host->call(stored_host->host_ctx, method, request, request_len, &response) == 0 && response.ptr != NULL && stored_host->free_buffer != NULL) {		stored_host->free_buffer(response.ptr, response.len);	}} static int plugin_call(const char* method, const uint8_t* request, size_t request_len, cliproxy_buffer* response) {	if (response != NULL) {		response->ptr = NULL;		response->len = 0;	}	if (method == NULL) {		write_response(response, "{\"ok\":false,\"error\":{\"code\":\"invalid_method\",\"message\":\"method is required\"}}");		return 1;	}	if (strcmp(method, "plugin.register") == 0) {		write_response(response, "{\"ok\":true,\"result\":{\"schema_version\":1,\"metadata\":{\"Name\":\"example-host-callback-c\",\"Version\":\"0.1.0\",\"Author\":\"router-for-me\",\"GitHubRepository\":\"https://github.com/router-for-me/CLIProxyAPI\",\"Logo\":\"https://example.invalid/example-host-callback-c.png\",\"ConfigFields\":[]},\"capabilities\":{\"management_api\":true}}}");		return 0;	}	if (strcmp(method, "plugin.reconfigure") == 0) {		write_response(response, "{\"ok\":true,\"result\":{\"schema_version\":1,\"metadata\":{\"Name\":\"example-host-callback-c\",\"Version\":\"0.1.0\",\"Author\":\"router-for-me\",\"GitHubRepository\":\"https://github.com/router-for-me/CLIProxyAPI\",\"Logo\":\"https://example.invalid/example-host-callback-c.png\",\"ConfigFields\":[]},\"capabilities\":{\"management_api\":true}}}");		return 0;	}	if (strcmp(method, "management.register") == 0) {		write_response(response, "{\"ok\":true,\"result\":{\"resources\":[{\"Path\":\"/status\",\"Menu\":\"Host Callback\",\"Description\":\"CPA exposes this menu resource under /v0/resource/plugins/example-host-callback-c/status.\"}]}}");		return 0;	}	if (strcmp(method, "management.handle") == 0) {		call_host("host.log", "{\"level\":\"info\",\"message\":\"example-host-callback-c host callback log\",\"fields\":{\"plugin\":\"example-host-callback-c\"}}");		call_host("host.http.do", "{\"method\":\"GET\",\"url\":\"https://example.com\",\"headers\":{\"user-agent\":[\"example-host-callback-c\"]}}"); 		write_response(response, "{\"ok\":true,\"result\":{\"StatusCode\":200,\"Headers\":{\"content-type\":[\"text/html; charset=utf-8\"]},\"Body\":\"PCFkb2N0eXBlIGh0bWw+PHRpdGxlPkhvc3QgQ2FsbGJhY2s8L3RpdGxlPjxtYWluPkhvc3QgQ2FsbGJhY2sgcmVzb3VyY2U8L21haW4+\"}}");		return 0;	}	write_response(response, "{\"ok\":false,\"error\":{\"code\":\"unknown_method\",\"message\":\"unknown method\"}}");	(void)request;	(void)request_len;	return 0;} static void plugin_free(void* ptr, size_t len) {	(void)len;	free(ptr);} static void plugin_shutdown(void) {} CLIPROXY_EXPORT int cliproxy_plugin_init(const cliproxy_host_api* host, cliproxy_plugin_api* plugin) {	if (plugin == NULL) {		return 1;	}	stored_host = host;	plugin->abi_version = ABI_VERSION;	plugin->call = plugin_call;	plugin->free_buffer = plugin_free;	plugin->shutdown = plugin_shutdown;	return 0;}