static void wps_er_http_req(void *ctx, struct http_request *req)
{
struct wps_er *er = ctx;
struct sockaddr_in *cli = http_request_get_cli_addr(req);
enum httpread_hdr_type type = http_request_get_type(req);
struct wpabuf *buf;
wpa_printf(MSG_DEBUG, "WPS ER: HTTP request: '%s' (type %d) from "
"%s:%d",
http_request_get_uri(req), type,
inet_ntoa(cli->sin_addr), ntohs(cli->sin_port));
switch (type) {
case HTTPREAD_HDR_TYPE_NOTIFY:
wps_er_http_notify(er, req);
break;
default:
wpa_printf(MSG_DEBUG, "WPS ER: Unsupported HTTP request type "
"%d", type);
buf = wpabuf_alloc(200);
if (buf == NULL) {
http_request_deinit(req);
return;
}
wpabuf_put_str(buf,
"HTTP/1.1 501 Unimplemented\r\n"
"Connection: close\r\n");
http_put_date(buf);
wpabuf_put_str(buf, "\r\n");
http_request_send_and_deinit(req, buf);
break;
}
}
static void http_req(void *ctx, struct http_request *req)
{
struct browser_data *data = ctx;
struct wpabuf *resp;
const char *url;
int done = 0;
url = http_request_get_uri(req);
wpa_printf(MSG_INFO, "Browser response received: %s", url);
if (os_strcmp(url, "/") == 0) {
data->success = 1;
done = 1;
} else if (os_strncmp(url, "/osu/", 5) == 0) {
data->success = atoi(url + 5);
done = 1;
}
resp = wpabuf_alloc(1);
if (resp == NULL) {
http_request_deinit(req);
if (done)
eloop_terminate();
return;
}
if (done) {
eloop_cancel_timeout(browser_timeout, NULL, NULL);
eloop_register_timeout(0, 500000, browser_timeout, &data, NULL);
}
http_request_send_and_deinit(req, resp);
}
static void wps_er_http_resp_not_found(struct http_request *req)
{
struct wpabuf *buf;
buf = wpabuf_alloc(200);
if (buf == NULL) {
http_request_deinit(req);
return;
}
wpabuf_put_str(buf,
"HTTP/1.1 404 Not Found\r\n"
"Server: unspecified, UPnP/1.0, unspecified\r\n"
"Connection: close\r\n");
http_put_date(buf);
wpabuf_put_str(buf, "\r\n");
http_request_send_and_deinit(req, buf);
}
static void web_connection_send_reply(struct http_request *req,
enum http_reply_code ret,
const char *action, int action_len,
const struct wpabuf *reply,
const char *replyname)
{
struct wpabuf *buf;
char *replydata;
char *put_length_here = NULL;
char *body_start = NULL;
if (reply) {
size_t len;
replydata = (char *) base64_encode(wpabuf_head(reply),
wpabuf_len(reply), &len);
} else
replydata = NULL;
/* Parameters of the response:
* action(action_len) -- action we are responding to
* replyname -- a name we need for the reply
* replydata -- NULL or null-terminated string
*/
buf = wpabuf_alloc(1000 + (replydata ? os_strlen(replydata) : 0U) +
(action_len > 0 ? action_len * 2 : 0));
if (buf == NULL) {
wpa_printf(MSG_INFO, "WPS UPnP: Cannot allocate reply to "
"POST");
os_free(replydata);
http_request_deinit(req);
return;
}
/*
* Assuming we will be successful, put in the output header first.
* Note: we do not keep connections alive (and httpread does
* not support it)... therefore we must have Connection: close.
*/
if (ret == HTTP_OK) {
wpabuf_put_str(buf,
"HTTP/1.1 200 OK\r\n"
"Content-Type: text/xml; "
"charset=\"utf-8\"\r\n");
} else {
wpabuf_printf(buf, "HTTP/1.1 %d Error\r\n", ret);
}
wpabuf_put_str(buf, http_connection_close);
wpabuf_put_str(buf, "Content-Length: ");
/*
* We will paste the length in later, leaving some extra whitespace.
* HTTP code is supposed to be tolerant of extra whitespace.
*/
put_length_here = wpabuf_put(buf, 0);
wpabuf_put_str(buf, " \r\n");
http_put_date(buf);
/* terminating empty line */
wpabuf_put_str(buf, "\r\n");
body_start = wpabuf_put(buf, 0);
if (ret == HTTP_OK) {
wpabuf_put_str(buf, soap_prefix);
wpabuf_put_str(buf, "<u:");
wpabuf_put_data(buf, action, action_len);
wpabuf_put_str(buf, "Response xmlns:u=\"");
wpabuf_put_str(buf, urn_wfawlanconfig);
wpabuf_put_str(buf, "\">\n");
if (replydata && replyname) {
/* TODO: might possibly need to escape part of reply
* data? ...
* probably not, unlikely to have ampersand(&) or left
* angle bracket (<) in it...
*/
wpabuf_printf(buf, "<%s>", replyname);
wpabuf_put_str(buf, replydata);
wpabuf_printf(buf, "</%s>\n", replyname);
}
wpabuf_put_str(buf, "</u:");
wpabuf_put_data(buf, action, action_len);
wpabuf_put_str(buf, "Response>\n");
wpabuf_put_str(buf, soap_postfix);
} else {
/* Error case */
wpabuf_put_str(buf, soap_prefix);
wpabuf_put_str(buf, soap_error_prefix);
wpabuf_printf(buf, "<errorCode>%d</errorCode>\n", ret);
wpabuf_put_str(buf, soap_error_postfix);
wpabuf_put_str(buf, soap_postfix);
}
os_free(replydata);
/* Now patch in the content length at the end */
if (body_start && put_length_here) {
int body_length = (char *) wpabuf_put(buf, 0) - body_start;
char len_buf[10];
os_snprintf(len_buf, sizeof(len_buf), "%d", body_length);
os_memcpy(put_length_here, len_buf, os_strlen(len_buf));
}
http_request_send_and_deinit(req, buf);
}
/* Given that we have received a header w/ GET, act upon it
*
* Format of GET (case-insensitive):
*
* First line must be:
* GET /<file> HTTP/1.1
* Since we don't do anything fancy we just ignore other lines.
*
* Our response (if no error) which includes only required lines is:
* HTTP/1.1 200 OK
* Connection: close
* Content-Type: text/xml
* Date: <rfc1123-date>
*
* Header lines must end with \r\n
* Per RFC 2616, content-length: is not required but connection:close
* would appear to be required (given that we will be closing it!).
*/
static void web_connection_parse_get(struct upnp_wps_device_sm *sm,
struct http_request *hreq, char *filename)
{
struct wpabuf *buf; /* output buffer, allocated */
char *put_length_here;
char *body_start;
enum {
GET_DEVICE_XML_FILE,
GET_SCPD_XML_FILE
} req;
size_t extra_len = 0;
int body_length;
char len_buf[10];
struct upnp_wps_device_interface *iface;
iface = dl_list_first(&sm->interfaces,
struct upnp_wps_device_interface, list);
if (iface == NULL) {
http_request_deinit(hreq);
return;
}
/*
* It is not required that filenames be case insensitive but it is
* allowed and cannot hurt here.
*/
if (os_strcasecmp(filename, UPNP_WPS_DEVICE_XML_FILE) == 0) {
wpa_printf(MSG_DEBUG, "WPS UPnP: HTTP GET for device XML");
req = GET_DEVICE_XML_FILE;
extra_len = 3000;
if (iface->wps->friendly_name)
extra_len += os_strlen(iface->wps->friendly_name);
if (iface->wps->manufacturer_url)
extra_len += os_strlen(iface->wps->manufacturer_url);
if (iface->wps->model_description)
extra_len += os_strlen(iface->wps->model_description);
if (iface->wps->model_url)
extra_len += os_strlen(iface->wps->model_url);
if (iface->wps->upc)
extra_len += os_strlen(iface->wps->upc);
} else if (!os_strcasecmp(filename, UPNP_WPS_SCPD_XML_FILE)) {
wpa_printf(MSG_DEBUG, "WPS UPnP: HTTP GET for SCPD XML");
req = GET_SCPD_XML_FILE;
extra_len = os_strlen(wps_scpd_xml);
} else {
/* File not found */
wpa_printf(MSG_DEBUG, "WPS UPnP: HTTP GET file not found: %s",
filename);
buf = wpabuf_alloc(200);
if (buf == NULL) {
http_request_deinit(hreq);
return;
}
wpabuf_put_str(buf,
"HTTP/1.1 404 Not Found\r\n"
"Connection: close\r\n");
http_put_date(buf);
/* terminating empty line */
wpabuf_put_str(buf, "\r\n");
goto send_buf;
}
buf = wpabuf_alloc(1000 + extra_len);
if (buf == NULL) {
http_request_deinit(hreq);
return;
}
wpabuf_put_str(buf,
"HTTP/1.1 200 OK\r\n"
"Content-Type: text/xml; charset=\"utf-8\"\r\n");
wpabuf_put_str(buf, "Server: Unspecified, UPnP/1.0, Unspecified\r\n");
wpabuf_put_str(buf, "Connection: close\r\n");
wpabuf_put_str(buf, "Content-Length: ");
/*
* We will paste the length in later, leaving some extra whitespace.
* HTTP code is supposed to be tolerant of extra whitespace.
*/
put_length_here = wpabuf_put(buf, 0);
wpabuf_put_str(buf, " \r\n");
http_put_date(buf);
/* terminating empty line */
wpabuf_put_str(buf, "\r\n");
body_start = wpabuf_put(buf, 0);
switch (req) {
case GET_DEVICE_XML_FILE:
format_wps_device_xml(iface, sm, buf);
break;
case GET_SCPD_XML_FILE:
wpabuf_put_str(buf, wps_scpd_xml);
break;
}
/* Now patch in the content length at the end */
body_length = (char *) wpabuf_put(buf, 0) - body_start;
os_snprintf(len_buf, 10, "%d", body_length);
os_memcpy(put_length_here, len_buf, os_strlen(len_buf));
send_buf:
http_request_send_and_deinit(hreq, buf);
}
