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test server http proxy

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Signed-off-by: Andy Green <andy.green@linaro.org>
This commit is contained in:
Andy Green 2016-03-01 07:19:01 +08:00
parent 494418abac
commit fb5f33bb2f
3 changed files with 85 additions and 1 deletions
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4
changelog
View file

@ -80,6 +80,10 @@ protocol string to its argument in URL format. If so, it stays in http[s]
client mode and doesn't upgrade to ws[s], allowing you to do generic http client
operations.
9) The test server has a new URI path http://localhost:7681/proxytest
If you visit here, a client connection to http://example.com:80 is spawned,
and the results piped on to your original connection.
User API additions
------------------

81
test-server/test-server-http.c
View file

@ -117,7 +117,7 @@ int callback_http(struct lws *wsi, enum lws_callback_reasons reason, void *user,
void *in, size_t len)
{
struct per_session_data__http *pss =
(struct per_session_data__http *)user;
(struct per_session_data__http *)user, *pss1;
unsigned char buffer[4096 + LWS_PRE];
unsigned long amount, file_len, sent;
char leaf_path[1024];
@ -167,6 +167,32 @@ int callback_http(struct lws *wsi, enum lws_callback_reasons reason, void *user,
goto try_to_reuse;
}
#ifndef LWS_NO_CLIENT
if (!strcmp(in, "/proxytest")) {
struct lws_client_connect_info i;
if (lws_get_child(wsi))
break;
pss->client_finished = 0;
memset(&i,0, sizeof(i));
i.context = lws_get_context(wsi);
i.address = "example.com";
i.port = 80;
i.ssl_connection = 0;
i.path = "/";
i.host = "example.com";
i.origin = NULL;
i.method = "GET";
i.parent_wsi = wsi;
if (!lws_client_connect_via_info(&i)) {
lwsl_err("proxy connect fail\n");
break;
}
break;
}
#endif
#ifdef LWS_WITH_CGI
if (!strcmp(in, "/cgitest")) {
static char *cmd[] = {
@ -366,6 +392,9 @@ int callback_http(struct lws *wsi, enum lws_callback_reasons reason, void *user,
case LWS_CALLBACK_HTTP_WRITEABLE:
lwsl_info("LWS_CALLBACK_HTTP_WRITEABLE\n");
if (pss->client_finished)
return -1;
if (pss->fd == LWS_INVALID_FILE)
goto try_to_reuse;
#ifdef LWS_WITH_CGI
@ -460,6 +489,56 @@ bail:
/* if we returned non-zero from here, we kill the connection */
break;
#ifndef LWS_WITH_CLIENT
case LWS_CALLBACK_ESTABLISHED_CLIENT_HTTP:
p = buffer + LWS_PRE;
end = p + sizeof(buffer) - LWS_PRE;
if (lws_add_http_header_status(lws_get_parent(wsi), 200, &p, end))
return 1;
if (lws_add_http_header_by_token(lws_get_parent(wsi),
WSI_TOKEN_HTTP_SERVER,
(unsigned char *)"libwebsockets",
13, &p, end))
return 1;
if (lws_add_http_header_by_token(lws_get_parent(wsi),
WSI_TOKEN_HTTP_CONTENT_TYPE,
(unsigned char *)"text/html", 9, &p, end))
return 1;
#if 0
if (lws_add_http_header_content_length(lws_get_parent(wsi),
file_len, &p,
end))
return 1;
#endif
if (lws_finalize_http_header(lws_get_parent(wsi), &p, end))
return 1;
*p = '\0';
lwsl_info("%s\n", buffer + LWS_PRE);
n = lws_write(lws_get_parent(wsi), buffer + LWS_PRE,
p - (buffer + LWS_PRE),
LWS_WRITE_HTTP_HEADERS);
if (n < 0)
return -1;
break;
case LWS_CALLBACK_CLOSED_CLIENT_HTTP:
return -1;
break;
case LWS_CALLBACK_RECEIVE_CLIENT_HTTP:
m = lws_write(lws_get_parent(wsi), in, len, LWS_WRITE_HTTP);
if (m < 0)
return 1;
break;
case LWS_CALLBACK_COMPLETED_CLIENT_HTTP:
pss1 = lws_wsi_user(lws_get_parent(wsi));
pss1->client_finished = 1;
lws_callback_on_writable(lws_get_parent(wsi));
return -1;
break;
#endif
#ifdef LWS_WITH_CGI
/* CGI IO events (POLLIN/OUT) appear here our demo user code policy is
*

1
test-server/test-server.h
View file

@ -71,6 +71,7 @@ struct per_session_data__http {
struct lws_cgi_args args;
int reason_bf;
#endif
unsigned int client_finished:1;
};
/*