/*
* If resolved successfuly it will connect. Otherwise invokes
* user callback as cb(undefined, error_message)
*/
static void http_get_dns_cb(const char *name, ip_addr_t *ipaddr, void *arg) {
/* WIP: for now return the dns address as if it were the `get` response */
struct espconn *conn = (struct espconn *) arg;
struct http_ctx *ctx = (struct http_ctx *) conn->proto.tcp;
static char err_msg[] = "cannot resolve";
if (ipaddr == NULL) {
v7_val_t res, cb_args = v7_create_object(v7);
v7_own(v7, &cb_args);
v7_array_set(v7, cb_args, 0, ctx->cb);
v7_array_set(v7, cb_args, 1,
v7_create_string(v7, err_msg, sizeof(err_msg), 1));
http_free(conn);
if (v7_exec_with(v7, &res, "this[0](undefined, this[1])", cb_args) !=
V7_OK) {
v7_fprintln(stderr, v7, res);
}
v7_disown(v7, &cb_args);
v7_disown(v7, &ctx->body); /* body has not been sent yet */
v7_disown(v7, &ctx->cb);
} else {
memcpy(conn->proto.tcp->remote_ip, &ipaddr->addr, 4);
conn->proto.tcp->remote_port = ctx->port;
conn->proto.tcp->local_port = espconn_port();
espconn_regist_connectcb(conn, http_connect_cb);
espconn_regist_disconcb(conn, http_disconnect_cb);
espconn_regist_reconcb(conn, http_error_cb);
espconn_connect(conn);
}
}
/* Invoke user callback as cb(data, undefined) */
static void http_disconnect_cb(void *arg) {
struct espconn *conn = (struct espconn *) arg;
struct http_ctx *ctx = (struct http_ctx *) conn->proto.tcp;
v7_val_t data, cb_args;
char *body;
int i;
v7_val_t res;
body = ctx->resp;
for (i = 0; i + 3 < ctx->resp_pos; i++) {
if (memcmp(ctx->resp + i, "\r\n\r\n", 4) == 0) {
body = ctx->resp + i + 4;
break;
}
}
cb_args = v7_create_object(v7);
v7_own(v7, &cb_args);
data = v7_create_string(v7, body, ctx->resp_pos - (body - ctx->resp), 1);
v7_own(v7, &data);
http_free(conn);
v7_array_set(v7, cb_args, 0, ctx->cb);
v7_array_set(v7, cb_args, 1, data);
v7_disown(v7, &data);
if (v7_exec_with(v7, &res, "this[0](this[1])", cb_args) != V7_OK) {
v7_fprintln(stderr, v7, res);
}
v7_disown(v7, &cb_args);
v7_disown(v7, &ctx->cb);
}
void sj_http_error_callback(struct v7 *v7, v7_val_t cb, int err_no) {
char err_msg[128];
v7_val_t res, cb_args;
cb_args = v7_create_object(v7);
v7_own(v7, &cb_args);
snprintf(err_msg, sizeof(err_msg), "connection error: %d\n", err_no);
v7_array_set(v7, cb_args, 0, cb);
v7_array_set(v7, cb_args, 1,
v7_create_string(v7, err_msg, sizeof(err_msg), 1));
if (v7_exec_with(v7, &res, "this[0](undefined, this[1])", cb_args) != V7_OK) {
v7_fprintln(stderr, v7, res);
}
v7_disown(v7, &cb_args);
}
/* Invoke user callback as cb(undefined, err_msg) */
static void http_error_cb(void *arg, int8_t err) {
struct espconn *conn = (struct espconn *) arg;
struct http_ctx *ctx = (struct http_ctx *) conn->proto.tcp;
char err_msg[128];
v7_val_t res, cb_args;
cb_args = v7_create_object(v7);
v7_own(v7, &cb_args);
snprintf(err_msg, sizeof(err_msg), "connection error: %d\n", err);
v7_array_set(v7, cb_args, 0, ctx->cb);
v7_array_set(v7, cb_args, 1,
v7_create_string(v7, err_msg, sizeof(err_msg), 1));
http_free(conn);
if (v7_exec_with(v7, &res, "this[0](undefined, this[1])", cb_args) != V7_OK) {
v7_fprintln(stderr, v7, res);
}
v7_disown(v7, &cb_args);
}
void sj_http_success_callback(struct v7 *v7, v7_val_t cb, const char *data,
size_t data_len) {
v7_val_t datav, cb_args;
v7_val_t res;
cb_args = v7_create_object(v7);
v7_own(v7, &cb_args);
datav = v7_create_string(v7, data, data_len, 1);
v7_own(v7, &datav);
v7_array_set(v7, cb_args, 0, cb);
v7_array_set(v7, cb_args, 1, datav);
v7_disown(v7, &datav);
if (v7_exec_with(v7, &res, "this[0](this[1])", cb_args) != V7_OK) {
v7_fprintln(stderr, v7, res);
}
v7_disown(v7, &cb_args);
v7_disown(v7, &cb);
}
