tlsuv_boringssl_smoke.c
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tlsuv_boringssl_smoke.c
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	#include <stdio.h>
	#include <stdlib.h>
	#include <string.h>

	#include <tlsuv/http.h>
	#include <tlsuv/tls_engine.h>
	#include <tlsuv/tlsuv.h>
	#include <uv.h>

	typedef struct smoke_http_capture_s {
	int status;
	int finished;
	int eof_seen;
	char *body;
	size_t body_len;
	size_t body_cap;
	} smoke_http_capture_t;

	static void smoke_fail(const char *message) {
	fprintf(stderr, "FAIL: %s\n", message);
	exit(1);
	}

	static void smoke_check(int ok, const char *message) {
	if (!ok) smoke_fail(message);
	printf("ok: %s\n", message);
	}

	static void smoke_check_status(int actual, int expected, const char *body) {
	if (actual == expected) {
	printf("ok: HTTPS request returned %d\n", expected);
	return;
	}

	fprintf(stderr, "FAIL: HTTPS request returned %d (expected %d)\n", actual, expected);
	if (body && *body) {
	fprintf(stderr, "response body sample: %.200s\n", body);
	}
	exit(1);
	}

	static void smoke_http_close_cb(tlsuv_http_t *client) {
	(void)client;
	}

	static void smoke_http_body_cb(tlsuv_http_req_t req, char chunk, ssize_t len) {
	smoke_http_capture_t cap = (smoke_http_capture_t )req->data;

	if (len > 0) {
	size_t needed = cap->body_len + (size_t)len + 1;
	if (needed > cap->body_cap) {
	size_t next_cap = cap->body_cap ? cap->body_cap * 2 : 256;
	while (next_cap < needed) next_cap *= 2;
	char next = (char )realloc(cap->body, next_cap);
	if (!next) smoke_fail("out of memory growing HTTP body buffer");
	cap->body = next;
	cap->body_cap = next_cap;
	}

	memcpy(cap->body + cap->body_len, chunk, (size_t)len);
	cap->body_len += (size_t)len;
	cap->body[cap->body_len] = '\0';
	return;
	}

	if (len == UV_EOF) {
	cap->eof_seen = 1;
	cap->finished = 1;
	tlsuv_http_close(req->client, smoke_http_close_cb);
	}
	}

	static void smoke_http_resp_cb(tlsuv_http_resp_t resp, void ctx) {
	smoke_http_capture_t cap = (smoke_http_capture_t )ctx;
	cap->status = resp->code;
	resp->req->data = cap;
	resp->body_cb = smoke_http_body_cb;

	if (resp->code < 0) {
	cap->finished = 1;
	tlsuv_http_close(resp->req->client, smoke_http_close_cb);
	}
	}

	static void smoke_usage(const char *argv0) {
	fprintf(stderr, "usage: %s [--url https://localhost:8443] [--ca path] [--cert path] [--key path]\n", argv0);
	}

	int main(int argc, char **argv) {
	const char *ca_path = "vendor/tlsuv/tests/certs/ca.pem";
	const char *cert_path = "vendor/tlsuv/tests/certs/server.crt";
	const char *key_path = "vendor/tlsuv/tests/certs/server.key";
	const char *url = NULL;

	for (int i = 1; i < argc; i++) {
	if (strcmp(argv[i], "--url") == 0 && i + 1 < argc) {
	url = argv[++i];
	} else if (strcmp(argv[i], "--ca") == 0 && i + 1 < argc) {
	ca_path = argv[++i];
	} else if (strcmp(argv[i], "--cert") == 0 && i + 1 < argc) {
	cert_path = argv[++i];
	} else if (strcmp(argv[i], "--key") == 0 && i + 1 < argc) {
	key_path = argv[++i];
	} else if (strcmp(argv[i], "--help") == 0) {
	smoke_usage(argv[0]);
	return 0;
	} else {
	smoke_usage(argv[0]);
	return 1;
	}
	}

	tls_context *base = default_tls_context(NULL, 0);
	smoke_check(base != NULL, "created default TLS context");

	const char *version = base->version ? base->version() : NULL;
	smoke_check(version != NULL && strstr(version, "BoringSSL") != NULL, "tlsuv reports BoringSSL");
	printf("tls version: %s\n", version);

	smoke_check(base->generate_key != NULL, "generate_key is available");
	smoke_check(base->load_key != NULL, "load_key is available");
	smoke_check(base->load_cert != NULL, "load_cert is available");
	smoke_check(base->set_own_cert != NULL, "set_own_cert is available");
	smoke_check(base->generate_csr_to_pem != NULL, "generate_csr_to_pem is available");

	tlsuv_private_key_t generated = NULL;
	smoke_check(base->generate_key(&generated) == 0 && generated != NULL, "generated private key");

	char *generated_pem = NULL;
	size_t generated_pem_len = 0;
	smoke_check(generated->to_pem(generated, &generated_pem, &generated_pem_len) == 0, "generated key exports to PEM");
	smoke_check(generated_pem != NULL && generated_pem_len > 0, "generated key PEM is non-empty");

	tlsuv_private_key_t roundtrip = NULL;
	smoke_check(base->load_key(&roundtrip, generated_pem, generated_pem_len) == 0 && roundtrip != NULL, "generated key PEM reloads");

	char *csr_pem = NULL;
	size_t csr_pem_len = 0;
	smoke_check(
	base->generate_csr_to_pem(
	generated, &csr_pem, &csr_pem_len,
	"CN", "boringssl-smoke",
	"O", "ant",
	NULL
	) == 0,
	"generated key can produce CSR"
	);
	smoke_check(csr_pem != NULL && csr_pem_len > 0, "CSR PEM is non-empty");

	tlsuv_private_key_t file_key = NULL;
	tlsuv_certificate_t file_cert = NULL;
	smoke_check(base->load_key(&file_key, key_path, strlen(key_path)) == 0 && file_key != NULL, "fixture private key loads");
	smoke_check(base->load_cert(&file_cert, cert_path, strlen(cert_path)) == 0 && file_cert != NULL, "fixture certificate loads");
	smoke_check(base->set_own_cert(base, file_key, file_cert) == 0, "fixture key/cert install on context");

	struct tm expiration = {0};
	smoke_check(file_cert->get_expiration != NULL, "certificate expiration accessor is available");
	smoke_check(file_cert->get_expiration(file_cert, &expiration) == 0, "certificate expiration decodes");

	if (url != NULL) {
	uv_loop_t *loop = uv_loop_new();
	smoke_check(loop != NULL, "created libuv loop");

	tls_context *http_tls = default_tls_context(ca_path, strlen(ca_path));
	smoke_check(http_tls != NULL, "created CA-backed TLS context");

	tlsuv_http_t client;
	memset(&client, 0, sizeof(client));
	smoke_http_capture_t cap;
	memset(&cap, 0, sizeof(cap));

	smoke_check(tlsuv_http_init(loop, &client, url) == 0, "initialized tlsuv HTTP client");
	tlsuv_http_set_ssl(&client, http_tls);

	tlsuv_http_req_t *req = tlsuv_http_req(&client, "GET", "/get", smoke_http_resp_cb, &cap);
	smoke_check(req != NULL, "created HTTPS request");
	tlsuv_http_req_end(req);

	uv_run(loop, UV_RUN_DEFAULT);

	smoke_check(cap.finished, "HTTPS request finished");
	smoke_check_status(cap.status, 200, cap.body);
	smoke_check(cap.eof_seen, "HTTPS body reached EOF");
	smoke_check(cap.body != NULL && cap.body_len > 0, "HTTPS body is non-empty");
	printf("https body sample: %.80s\n", cap.body);

	http_tls->free_ctx(http_tls);
	if (uv_loop_close(loop) != 0) smoke_fail("failed to close libuv loop");
	free(loop);
	free(cap.body);
	} else {
	printf("skipped live HTTPS probe; rerun with --url https://localhost:8443 to exercise a real handshake\n");
	printf("tip: start vendor/tlsuv/tests/test_server/test-server.go with the existing cert fixtures first\n");
	}

	free(csr_pem);
	free(generated_pem);

	if (base && base->free_ctx) base->free_ctx(base);
	if (file_cert && file_cert->free) file_cert->free(file_cert);
	if (file_key && file_key->free) file_key->free(file_key);
	if (roundtrip && roundtrip->free) roundtrip->free(roundtrip);
	if (generated && generated->free) generated->free(generated);

	printf("BoringSSL smoke test passed\n");
	return 0;
	}

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