int
close_vorbis_stream(void * datasource) {
http_session_t * session = (http_session_t *) datasource;
session->fdec->is_stream = 0;
httpc_close(session);
httpc_del(session);
return 0;
}
/** http client tcp err callback */
static void
httpc_tcp_err(void *arg, err_t err)
{
httpc_state_t* req = (httpc_state_t*)arg;
if (req != NULL) {
/* pcb has already been deallocated */
req->pcb = NULL;
httpc_close(req, HTTPC_RESULT_ERR_CLOSED, 0, err);
}
}
void
pause_vorbis_stream(decoder_t * dec) {
vorbis_pdata_t * pd = (vorbis_pdata_t *)dec->pdata;
char flush_dest;
httpc_close(pd->session);
if (pd->session->type == HTTPC_SESSION_STREAM) {
/* empty vorbis decoder ringbuffer */
while (rb_read_space(pd->rb))
rb_read(pd->rb, &flush_dest, sizeof(char));
}
}
/** http client tcp poll callback */
static err_t
httpc_tcp_poll(void *arg, struct altcp_pcb *pcb)
{
/* implement timeout */
httpc_state_t* req = (httpc_state_t*)arg;
LWIP_UNUSED_ARG(pcb);
if (req != NULL) {
if (req->timeout_ticks) {
req->timeout_ticks--;
}
if (!req->timeout_ticks) {
return httpc_close(req, HTTPC_RESULT_ERR_TIMEOUT, 0, ERR_OK);
}
}
return ERR_OK;
}
/** http client tcp connected callback */
static err_t
httpc_tcp_connected(void *arg, struct altcp_pcb *pcb, err_t err)
{
err_t r;
httpc_state_t* req = (httpc_state_t*)arg;
LWIP_UNUSED_ARG(pcb);
LWIP_UNUSED_ARG(err);
/* send request; last char is zero termination */
r = altcp_write(req->pcb, req->request->payload, req->request->len - 1, TCP_WRITE_FLAG_COPY);
if (r != ERR_OK) {
/* could not write the single small request -> fail, don't retry */
return httpc_close(req, HTTPC_RESULT_ERR_MEM, 0, r);
}
/* everything written, we can free the request */
pbuf_free(req->request);
req->request = NULL;
altcp_output(req->pcb);
return ERR_OK;
}
/** DNS callback
* If ipaddr is non-NULL, resolving succeeded and the request can be sent, otherwise it failed.
*/
static void
httpc_dns_found(const char* hostname, const ip_addr_t *ipaddr, void *arg)
{
httpc_state_t* req = (httpc_state_t*)arg;
err_t err;
httpc_result_t result;
LWIP_UNUSED_ARG(hostname);
if (ipaddr != NULL) {
err = httpc_get_internal_addr(req, ipaddr);
if (err == ERR_OK) {
return;
}
result = HTTPC_RESULT_ERR_CONNECT;
} else {
LWIP_DEBUGF(HTTPC_DEBUG_WARN_STATE, ("httpc_dns_found: failed to resolve hostname: %s\n",
hostname));
result = HTTPC_RESULT_ERR_HOSTNAME;
err = ERR_ARG;
}
httpc_close(req, result, 0, err);
}
/** http client tcp recv callback */
static err_t
httpc_tcp_recv(void *arg, struct altcp_pcb *pcb, struct pbuf *p, err_t r)
{
httpc_state_t* req = (httpc_state_t*)arg;
LWIP_UNUSED_ARG(r);
if (p == NULL) {
httpc_result_t result;
if (req->parse_state != HTTPC_PARSE_RX_DATA) {
/* did not get RX data yet */
result = HTTPC_RESULT_ERR_CLOSED;
} else if ((req->hdr_content_len != HTTPC_CONTENT_LEN_INVALID) &&
(req->hdr_content_len != req->rx_content_len)) {
/* header has been received with content length but not all data received */
result = HTTPC_RESULT_ERR_CONTENT_LEN;
} else {
/* receiving data and either all data received or no content length header */
result = HTTPC_RESULT_OK;
}
return httpc_close(req, result, req->rx_status, ERR_OK);
}
if (req->parse_state != HTTPC_PARSE_RX_DATA) {
if (req->rx_hdrs == NULL) {
req->rx_hdrs = p;
} else {
pbuf_cat(req->rx_hdrs, p);
}
if (req->parse_state == HTTPC_PARSE_WAIT_FIRST_LINE) {
u16_t status_str_off;
err_t err = http_parse_response_status(req->rx_hdrs, &req->rx_http_version, &req->rx_status, &status_str_off);
if (err == ERR_OK) {
/* don't care status string */
req->parse_state = HTTPC_PARSE_WAIT_HEADERS;
}
}
if (req->parse_state == HTTPC_PARSE_WAIT_HEADERS) {
u16_t total_header_len;
err_t err = http_wait_headers(req->rx_hdrs, &req->hdr_content_len, &total_header_len);
if (err == ERR_OK) {
struct pbuf *q;
/* full header received, send window update for header bytes and call into client callback */
altcp_recved(pcb, total_header_len);
if (req->conn_settings) {
if (req->conn_settings->headers_done_fn) {
err = req->conn_settings->headers_done_fn(req, req->callback_arg, req->rx_hdrs, total_header_len, req->hdr_content_len);
if (err != ERR_OK) {
return httpc_close(req, HTTPC_RESULT_LOCAL_ABORT, req->rx_status, err);
}
}
}
/* hide header bytes in pbuf */
q = pbuf_free_header(req->rx_hdrs, total_header_len);
p = q;
req->rx_hdrs = NULL;
/* go on with data */
req->parse_state = HTTPC_PARSE_RX_DATA;
}
}
}
if ((p != NULL) && (req->parse_state == HTTPC_PARSE_RX_DATA)) {
req->rx_content_len += p->tot_len;
if (req->recv_fn != NULL) {
/* directly return here: the connection migth already be aborted from the callback! */
return req->recv_fn(req->callback_arg, pcb, p, r);
} else {
altcp_recved(pcb, p->tot_len);
pbuf_free(p);
}
}
return ERR_OK;
}
