static void post_response(struct st_h2o_mruby_http_request_context_t *ctx, int status,
const h2o_http1client_header_t *headers_sorted, size_t num_headers)
{
mrb_state *mrb = ctx->generator->ctx->shared->mrb;
int gc_arena = mrb_gc_arena_save(mrb);
size_t i;
mrb_value resp = mrb_ary_new_capa(mrb, 3);
/* set status */
mrb_ary_set(mrb, resp, 0, mrb_fixnum_value(status));
/* set headers */
mrb_value headers_hash = mrb_hash_new_capa(mrb, (int)num_headers);
for (i = 0; i < num_headers; ++i) {
/* skip the headers, we determine the eos! */
if (h2o_memis(headers_sorted[i].name, headers_sorted[i].name_len, H2O_STRLIT("content-length")) ||
h2o_memis(headers_sorted[i].name, headers_sorted[i].name_len, H2O_STRLIT("transfer-encoding")))
continue;
/* build and set the hash entry */
mrb_value k = mrb_str_new(mrb, headers_sorted[i].name, headers_sorted[i].name_len);
mrb_value v = mrb_str_new(mrb, headers_sorted[i].value, headers_sorted[i].value_len);
while (i + 1 < num_headers && h2o_memis(headers_sorted[i].name, headers_sorted[i].name_len, headers_sorted[i + 1].name,
headers_sorted[i + 1].name_len)) {
++i;
v = mrb_str_cat_lit(mrb, v, "\n");
v = mrb_str_cat(mrb, v, headers_sorted[i].value, headers_sorted[i].value_len);
}
mrb_hash_set(mrb, headers_hash, k, v);
}
mrb_ary_set(mrb, resp, 1, headers_hash);
/* set input stream */
assert(mrb_nil_p(ctx->refs.input_stream));
ctx->refs.input_stream = h2o_mruby_create_data_instance(
mrb, mrb_ary_entry(ctx->generator->ctx->shared->constants, H2O_MRUBY_HTTP_INPUT_STREAM_CLASS), ctx, &input_stream_type);
mrb_ary_set(mrb, resp, 2, ctx->refs.input_stream);
if (mrb_nil_p(ctx->receiver)) {
/* is async */
mrb_funcall(mrb, ctx->refs.request, "_set_response", 1, resp);
if (mrb->exc != NULL) {
fprintf(stderr, "_set_response failed\n");
abort();
}
} else {
/* send response to the waiting receiver */
h2o_mruby_run_fiber(ctx->generator, detach_receiver(ctx), resp, NULL);
}
mrb_gc_arena_restore(mrb, gc_arena);
}
static mrb_value http_request_method(mrb_state *mrb, mrb_value self)
{
h2o_mruby_generator_t *generator;
struct st_h2o_mruby_http_request_context_t *ctx;
const char *arg_url;
mrb_int arg_url_len;
mrb_value arg_hash;
h2o_iovec_t method;
h2o_url_t url;
/* parse args */
arg_hash = mrb_nil_value();
mrb_get_args(mrb, "s|H", &arg_url, &arg_url_len, &arg_hash);
/* precond check */
if ((generator = h2o_mruby_current_generator) == NULL || generator->req == NULL)
mrb_exc_raise(mrb, create_downstream_closed_exception(mrb));
/* allocate context and initialize */
ctx = h2o_mem_alloc_shared(&generator->req->pool, sizeof(*ctx), on_dispose);
memset(ctx, 0, sizeof(*ctx));
ctx->generator = generator;
ctx->receiver = mrb_nil_value();
h2o_buffer_init(&ctx->req.buf, &h2o_socket_buffer_prototype);
h2o_buffer_init(&ctx->resp.after_closed, &h2o_socket_buffer_prototype);
ctx->refs.request = mrb_nil_value();
ctx->refs.input_stream = mrb_nil_value();
/* uri */
if (h2o_url_parse(arg_url, arg_url_len, &url) != 0)
mrb_raise(mrb, E_ARGUMENT_ERROR, "invaild URL");
/* method */
method = h2o_iovec_init(H2O_STRLIT("GET"));
if (mrb_hash_p(arg_hash)) {
mrb_value t = mrb_hash_get(mrb, arg_hash, mrb_symbol_value(generator->ctx->symbols.sym_method));
if (!mrb_nil_p(t)) {
t = mrb_str_to_str(mrb, t);
method = h2o_iovec_init(RSTRING_PTR(t), RSTRING_LEN(t));
}
}
/* start building the request */
h2o_buffer_reserve(&ctx->req.buf, method.len + 1);
append_to_buffer(&ctx->req.buf, method.base, method.len);
append_to_buffer(&ctx->req.buf, H2O_STRLIT(" "));
h2o_buffer_reserve(&ctx->req.buf,
url.path.len + url.authority.len + sizeof(" HTTP/1.1\r\nConnection: close\r\nHost: \r\n") - 1);
append_to_buffer(&ctx->req.buf, url.path.base, url.path.len);
append_to_buffer(&ctx->req.buf, H2O_STRLIT(" HTTP/1.1\r\nConnection: close\r\nHost: "));
append_to_buffer(&ctx->req.buf, url.authority.base, url.authority.len);
append_to_buffer(&ctx->req.buf, H2O_STRLIT("\r\n"));
/* headers */
if (mrb_hash_p(arg_hash)) {
mrb_value headers = mrb_hash_get(mrb, arg_hash, mrb_symbol_value(generator->ctx->symbols.sym_headers));
if (!mrb_nil_p(headers)) {
if (h2o_mruby_iterate_headers(generator->ctx, headers, flatten_request_header, ctx) != 0) {
mrb_value exc = mrb_obj_value(mrb->exc);
mrb->exc = NULL;
mrb_exc_raise(mrb, exc);
}
}
}
/* body */
if (mrb_hash_p(arg_hash)) {
mrb_value body = mrb_hash_get(mrb, arg_hash, mrb_symbol_value(generator->ctx->symbols.sym_body));
if (!mrb_nil_p(body)) {
if (mrb_obj_eq(mrb, body, generator->rack_input)) {
/* fast path */
mrb_int pos;
mrb_input_stream_get_data(mrb, body, NULL, NULL, &pos, NULL, NULL);
ctx->req.body = generator->req->entity;
ctx->req.body.base += pos;
ctx->req.body.len -= pos;
} else {
if (!mrb_string_p(body)) {
body = mrb_funcall(mrb, body, "read", 0);
if (!mrb_string_p(body))
mrb_raise(mrb, E_ARGUMENT_ERROR, "body.read did not return string");
}
ctx->req.body = h2o_strdup(&ctx->generator->req->pool, RSTRING_PTR(body), RSTRING_LEN(body));
}
if (!ctx->req.has_transfer_encoding) {
char buf[64];
size_t l = (size_t)sprintf(buf, "content-length: %zu\r\n", ctx->req.body.len);
h2o_buffer_reserve(&ctx->req.buf, l);
append_to_buffer(&ctx->req.buf, buf, l);
}
}
}
h2o_buffer_reserve(&ctx->req.buf, 2);
append_to_buffer(&ctx->req.buf, H2O_STRLIT("\r\n"));
/* build request and connect */
h2o_http1client_connect(&ctx->client, ctx, &generator->req->conn->ctx->proxy.client_ctx, url.host, h2o_url_get_port(&url),
on_connect);
ctx->refs.request = h2o_mruby_create_data_instance(mrb, mrb_ary_entry(generator->ctx->constants, H2O_MRUBY_HTTP_REQUEST_CLASS),
ctx, &request_type);
return ctx->refs.request;
}
