Full rewrite

This commit is contained in:
2025-05-07 23:57:07 +02:00
parent 82ef7ee170
commit 24736bc780
23 changed files with 4737 additions and 5791 deletions
+14 -430
View File
@@ -1,438 +1,22 @@
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "../http.h"
#include "test.h"
#include "picohttpparser.h"
#define TEST(X) {if (!(X)) __builtin_trap(); }
//////////////////////////////////////////////////////////////////////////////////////
// TEST CASES
//////////////////////////////////////////////////////////////////////////////////////
#define BASIC_REQUEST_STRING \
"GET / HTTP/1.1\r\n" \
"Host: 127.0.0.1:8080\r\n" \
"User-Agent: curl/7.81.0\r\n" \
"Accept: */*\r\n" \
"\r\n"
static void test_init(void)
{
TinyHTTPStream stream;
TEST_START
tinyhttp_stream_init(&stream, memfunc, NULL);
int state = tinyhttp_stream_state(&stream);
// These flags must be set on init
TEST(state & TINYHTTP_STREAM_RECV);
// These must be unset
TEST(!(state & TINYHTTP_STREAM_DIED));
TEST(!(state & TINYHTTP_STREAM_READY));
TEST(!(state & TINYHTTP_STREAM_REUSE));
TEST(!(state & TINYHTTP_STREAM_RECV_STARTED));
TEST(!(state & TINYHTTP_STREAM_SEND_STARTED));
tinyhttp_stream_free(&stream);
TEST_END
}
static void test_kill(void)
{
TinyHTTPStream stream;
TEST_START
tinyhttp_stream_init(&stream, memfunc, NULL);
TEST(!(tinyhttp_stream_state(&stream) & TINYHTTP_STREAM_DIED));
tinyhttp_stream_kill(&stream);
TEST(tinyhttp_stream_state(&stream) & TINYHTTP_STREAM_DIED);
tinyhttp_stream_free(&stream);
TEST_END
}
static void
test_recv_started_flag(void)
{
ptrdiff_t cap;
TinyHTTPStream stream;
TEST_START
tinyhttp_stream_init(&stream, memfunc, NULL);
TEST(!(tinyhttp_stream_state(&stream) & TINYHTTP_STREAM_RECV_STARTED));
tinyhttp_stream_recv_buf(&stream, &cap);
TEST(tinyhttp_stream_state(&stream) & TINYHTTP_STREAM_RECV_STARTED);
tinyhttp_stream_recv_ack(&stream, 0);
TEST(!(tinyhttp_stream_state(&stream) & TINYHTTP_STREAM_RECV_STARTED));
tinyhttp_stream_free(&stream);
TEST_END
}
static void
test_send_started_flag(void)
{
ptrdiff_t cap;
TinyHTTPStream stream;
TEST_START
tinyhttp_stream_init(&stream, memfunc, NULL);
TEST(!(tinyhttp_stream_state(&stream) & TINYHTTP_STREAM_SEND_STARTED));
tinyhttp_stream_send_buf(&stream, &cap);
TEST(tinyhttp_stream_state(&stream) & TINYHTTP_STREAM_SEND_STARTED);
tinyhttp_stream_send_ack(&stream, 0);
TEST(!(tinyhttp_stream_state(&stream) & TINYHTTP_STREAM_SEND_STARTED));
tinyhttp_stream_free(&stream);
TEST_END
}
static void test_basic_exchange()
{
TinyHTTPStream stream;
TEST_START
tinyhttp_stream_init(&stream, memfunc, NULL);
// Send request
send_request(&stream, BASIC_REQUEST_STRING);
// Build response
tinyhttp_stream_response_status(&stream, 200);
tinyhttp_stream_response_send(&stream);
// Receive response
char buf[1<<12];
Response res;
recv_response(&stream, &res, buf, sizeof(buf));
// We expect the status line:
// HTTP/1.1 200 OK
TEST(res.minor == 1);
TEST(res.status_code == 200);
TEST(tinyhttp_streq(res.status_text, TINYHTTP_STRING("OK")));
tinyhttp_stream_free(&stream);
TEST_END
}
//////////////////////////////////////////////////////////////////////////////////////
// ENTRY POINT
//////////////////////////////////////////////////////////////////////////////////////
void test_branch_coverage(void);
int main(void)
{
test_init();
test_kill();
test_recv_started_flag();
test_send_started_flag();
test_basic_exchange();
test_reuse();
test_chunking();
test_parse_request();
printf("OK\n");
char *tests[] = {
};
for (int i = 0; i < sizeof(tests)/sizeof(tests[0]); i++) {
HTTP_Request req;
int ret = http_parse_request(tests[i], strlen(tests[i]), &req);
TEST(ret == 0);
}
test_branch_coverage();
return 0;
}
//////////////////////////////////////////////////////////////////////////////////////
// Helper Functions
//////////////////////////////////////////////////////////////////////////////////////
void *memfunc(TinyHTTPMemoryFuncTag tag, void *ptr, int len, void *data)
{
(void) data;
switch (tag) {
case TINYHTTP_MEM_MALLOC:
return malloc(len);
case TINYHTTP_MEM_FREE:
free(ptr);
return NULL;
}
return NULL;
}
static int
buffer_into_stream(TinyHTTPStream *stream, const char *src, int len)
{
int state = tinyhttp_stream_state(stream);
ptrdiff_t copied = 0;
while (copied < len && (state & TINYHTTP_STREAM_RECV)) {
char *dst;
ptrdiff_t cap;
ptrdiff_t cpy;
dst = tinyhttp_stream_recv_buf(stream, &cap);
cpy = len - copied;
if (cpy > cap) cpy = cap;
memcpy(dst, src + copied, cpy);
tinyhttp_printbytes(" >> ", src + copied, cpy);
copied += cpy;
tinyhttp_stream_recv_ack(stream, cpy);
state = tinyhttp_stream_state(stream);
}
printf("\n");
return copied;
}
static int
stream_into_buffer(TinyHTTPStream *stream, char *dst, int cap)
{
int state = tinyhttp_stream_state(stream);
int copied = 0;
while (copied < cap && (state & TINYHTTP_STREAM_SEND)) {
char *src;
ptrdiff_t len;
ptrdiff_t cpy;
src = tinyhttp_stream_send_buf(stream, &len);
cpy = cap - copied;
if (cpy > len) cpy = len;
memcpy(dst + copied, src, cpy);
tinyhttp_printbytes(" << ", src, cpy);
copied += cpy;
tinyhttp_stream_send_ack(stream, cpy);
state = tinyhttp_stream_state(stream);
}
printf("\n");
return copied;
}
int match_request(TinyHTTPRequest *r1, TinyHTTPRequest *r2)
{
if (r1->method != r2->method)
return 0;
if (r1->minor != r2->minor)
return 0;
if (!tinyhttp_streq(r1->path, r2->path))
return 0;
if (r1->num_headers != r2->num_headers)
return 0;
for (int i = 0; i < r2->num_headers; i++) {
if (!tinyhttp_streq(r1->headers[i].name, r2->headers[i].name))
return 0;
if (!tinyhttp_streq(r1->headers[i].value, r2->headers[i].value))
return 0;
}
if (r1->body_len != r2->body_len)
return 0;
if (r2->body_len == 0) {
if (r1->body != NULL)
return 0;
} else {
if (memcmp(r1->body, r2->body, r2->body_len))
return 0;
}
return 1;
}
static void
expect_request(TinyHTTPStream *stream, TinyHTTPRequest expreq)
{
int state = tinyhttp_stream_state(stream);
TEST(state & TINYHTTP_STREAM_READY);
TinyHTTPRequest *req = tinyhttp_stream_request(stream);
TEST(req);
TEST(match_request(req, &expreq));
}
int parse_request(TinyHTTPString txt, TinyHTTPRequest *req, char *buf, int max)
{
const char *method;
size_t method_len;
const char *path;
size_t path_len;
int minor;
struct phr_header headers[TINYHTTP_HEADER_LIMIT];
size_t num_headers = TINYHTTP_HEADER_LIMIT;
int ret = phr_parse_request(
txt.ptr, txt.len,
&method, &method_len,
&path, &path_len,
&minor,
headers, &num_headers,
0);
ptrdiff_t head_len = ret;
if (method_len == 3 && !memcmp("GET", method, 3)) {
req->method = TINYHTTP_METHOD_GET;
} else if (method_len == 4 && !memcmp("POST", method, 4)) {
req->method = TINYHTTP_METHOD_POST;
} else {
return -1;
}
req->minor = minor;
req->path = (TinyHTTPString) { path, path_len };
req->num_headers = num_headers;
for (int i = 0; i < (int) num_headers; i++) {
req->headers[i].name = (TinyHTTPString) {
headers[i].name,
headers[i].name_len,
};
req->headers[i].value = (TinyHTTPString) {
headers[i].value,
headers[i].value_len,
};
}
int transfer_encoding_index = tinyhttp_findheader(req, TINYHTTP_STRING("Transfer-Encoding"));
if (transfer_encoding_index != -1) {
// TODO: For now, we consider request as chunked just for having the Transfer-Encoding header
if (txt.len - head_len > max)
return -1;
memcpy(buf, txt.ptr + head_len, txt.len - head_len);
struct phr_chunked_decoder decoder;
memset(&decoder, 0, sizeof(decoder));
decoder.consume_trailer = 1; // Process any trailing headers
// Decode the chunked body
size_t decoded_size = txt.len - head_len;
ssize_t ret = phr_decode_chunked(&decoder, buf, &decoded_size);
if (ret < 0)
return -1;
req->body = buf;
req->body_len = decoded_size;
return 0;
}
int content_length_index = tinyhttp_findheader(req, TINYHTTP_STRING("Content-Length"));
if (content_length_index != -1) {
__builtin_trap(); // TODO
return 0;
}
req->body = NULL;
req->body_len = 0;
return 0;
}
static void
parse_response(TinyHTTPString txt, Response *res)
{
int minor;
int status_code;
const char *status_text;
size_t status_text_len;
struct phr_header headers[TINYHTTP_HEADER_LIMIT];
size_t num_headers = TINYHTTP_HEADER_LIMIT;
int ret = phr_parse_response(
txt.ptr, txt.len,
&minor,
&status_code, &status_text, &status_text_len,
headers, &num_headers,
0);
TEST(ret == txt.len);
res->minor = minor;
res->status_code = status_code;
res->status_text = (TinyHTTPString) { status_text, status_text_len };
res->num_headers = num_headers;
for (int i = 0; i < (int) num_headers; i++) {
res->headers[i].name = (TinyHTTPString) {
headers[i].name,
headers[i].name_len
};
res->headers[i].value = (TinyHTTPString) {
headers[i].value,
headers[i].value_len
};
}
res->body = NULL; // TODO
res->body_len = 0; // TODO
}
void send_request(TinyHTTPStream *stream, const char *str)
{
int received = buffer_into_stream(stream, str, strlen(str));
TEST(received == (int) strlen(str));
TinyHTTPRequest req;
char buf[1<<12];
TEST(parse_request((TinyHTTPString) {str, strlen(str)}, &req, buf, sizeof(buf)) == 0);
expect_request(stream, req);
}
void recv_response(TinyHTTPStream *stream, Response *res, char *dst, int cap)
{
int len = stream_into_buffer(stream, dst, cap);
int state = tinyhttp_stream_state(stream);
TEST((state & TINYHTTP_STREAM_SEND) == 0);
parse_response((TinyHTTPString) { dst, len }, res);
}
int header_exists(Response *res, TinyHTTPString name)
{
for (int i = 0; i < res->num_headers; i++)
if (tinyhttp_streqcase(res->headers[i].name, name))
return 1;
return 0;
}
int header_exists_with_value(Response *res, TinyHTTPString name, TinyHTTPString value)
{
for (int i = 0; i < res->num_headers; i++)
if (tinyhttp_streqcase(res->headers[i].name, name))
return tinyhttp_streqcase(res->headers[i].value, value);
return 0;
}
//////////////////////////////////////////////////////////////////////////////////////
// THE END
//////////////////////////////////////////////////////////////////////////////////////