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gstreamer/tests/check/elements/curlhttpsrc.c
Alex Ashley d2d912f34a tests: curlhttpsrc: add unit tests 
Based upon the souphttpsrc tests, add unit tests for the curlhttpsrc
element. The souphttpsrc tests are able to use an HTTP server that
is provided as part of the soup library. This does not exist in the
curl library, therefore these tests provide a very simple HTTP server
using the GIO library.

These curlhttpsrc tests contain one new test that does not come from
the souphttpsrc tests. The test_multiple_http_requests test tries to
reproduce the way in which GstAdaptiveDemux makes use of URI source
elements. GstAdaptiveDemux creates a bin with the httpsrc element
and a queue element and sets the locked state of that bin to TRUE,
so that it does not follow the state transitions of its parent. It
then moves this bin to the PLAYING state to start each download and
back to READY when the download completes.
2019-02-19 17:55:12 +00:00

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/* GStreamer unit tests for the curlhttpsrc element
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdlib.h>
#include <gio/gio.h>
#include <glib.h>
#include <glib/gprintf.h>
#include <gst/check/gstcheck.h>
gboolean redirect = TRUE;
static const char **cookies = NULL;
typedef struct _GioHttpServer
{
guint16 port;
char *root;
GSocketService *service;
guint64 delay;
} GioHttpServer;
typedef struct _HttpRequest
{
gchar *method;
gchar *version;
gchar *path;
gchar *query;
} HttpRequest;
static GioHttpServer *run_server (void);
static void stop_server (GioHttpServer * server);
static guint16 get_port_from_server (GioHttpServer * server);
static const gchar *STATUS_OK = "200 OK";
static const gchar *STATUS_MOVED_PERMANENTLY = "301 Moved Permanently";
static const gchar *STATUS_MOVED_TEMPORARILY = "302 Moved Temporarily";
static const gchar *STATUS_TEMPORARY_REDIRECT = "307 Temporary Redirect";
static const gchar *STATUS_FORBIDDEN = "403 Forbidden";
static const gchar *STATUS_NOT_FOUND = "404 Not Found";
static void
do_get (GioHttpServer * server, const HttpRequest * req, GOutputStream * out)
{
gboolean send_error_doc = FALSE;
int buflen = 1024;
const gchar *status = STATUS_OK;
const gchar *content_type = "application/octet-stream";
GString *s;
char *buf = NULL;
gsize written = 0;
GST_DEBUG ("%s request: \"%s\"", req->method, req->path);
if (!strcmp (req->path, "/301"))
status = STATUS_MOVED_PERMANENTLY;
else if (!strcmp (req->path, "/302"))
status = STATUS_MOVED_TEMPORARILY;
else if (!strcmp (req->path, "/307"))
status = STATUS_TEMPORARY_REDIRECT;
else if (!strcmp (req->path, "/403"))
status = STATUS_FORBIDDEN;
else if (!strcmp (req->path, "/404"))
status = STATUS_NOT_FOUND;
else if (!strcmp (req->path, "/404-with-data")) {
status = STATUS_NOT_FOUND;
send_error_doc = TRUE;
}
s = g_string_new ("HTTP/");
g_string_append_printf (s, "%s %s\r\n", req->version, status);
if (g_str_has_prefix (status, "30")) {
g_string_append_printf (s, "Location: %s-redirected\r\n", req->path);
}
if (status == STATUS_OK || send_error_doc) {
g_string_append_printf (s, "Content-Type: %s\r\n", content_type);
g_string_append_printf (s, "Content-Length: %lu\r\n", (gulong) buflen);
if (!g_strcmp0 (req->method, "GET")) {
buf = g_malloc (buflen);
memset (buf, 0, buflen);
}
}
g_string_append (s, "\r\n");
GST_DEBUG ("Response headers: %lu\n%s\n********\n", s->len, s->str);
g_output_stream_write_all (out, s->str, s->len, &written, NULL, NULL);
fail_if (written != s->len);
g_string_free (s, TRUE);
if (buf) {
g_output_stream_write_all (out, buf, buflen, &written, NULL, NULL);
fail_if (written != buflen);
g_free (buf);
}
}
static void
send_error (GOutputStream * out, int error_code, const gchar * reason)
{
gchar *res;
res = g_strdup_printf ("HTTP/1.0 %d %s\r\n\r\n"
"<html><head><title>%d %s</title></head>"
"<body>%s</body></html>", error_code, reason, error_code, reason, reason);
g_output_stream_write_all (out, res, strlen (res), NULL, NULL, NULL);
g_free (res);
}
static gboolean
server_callback (GThreadedSocketService * service,
GSocketConnection * connection,
GSocketListener * listener, gpointer user_data)
{
GioHttpServer *server = (GioHttpServer *) user_data;
GOutputStream *out;
GInputStream *in;
GDataInputStream *data = NULL;
char *line = NULL, *escaped, *tmp;
HttpRequest req;
in = g_io_stream_get_input_stream (G_IO_STREAM (connection));
out = g_io_stream_get_output_stream (G_IO_STREAM (connection));
data = g_data_input_stream_new (in);
g_data_input_stream_set_newline_type (data, G_DATA_STREAM_NEWLINE_TYPE_ANY);
line = g_data_input_stream_read_line (data, NULL, NULL, NULL);
if (line == NULL) {
send_error (out, 400, "Invalid request");
goto out;
}
tmp = strchr (line, ' ');
if (!tmp) {
send_error (out, 400, "Invalid request");
goto out;
}
req.method = line;
*tmp = '\0';
escaped = tmp + 1;
req.version = NULL;
tmp = strchr (escaped, ' ');
if (tmp != NULL) {
*tmp = 0;
req.version = tmp + 6; /* skip "HTTP/" from version field */
}
req.query = strchr (escaped, '?');
if (req.query != NULL) {
*req.query = '\0';
req.query++;
}
req.path = g_uri_unescape_string (escaped, NULL);
GST_DEBUG ("%s %s HTTP/%s", req.method, req.path, req.version);
if (server->delay) {
g_usleep (server->delay);
}
do_get (server, &req, out);
g_free (req.path);
out:
g_free (line);
if (data)
g_object_unref (data);
return TRUE;
}
static guint16
get_port_from_server (GioHttpServer * server)
{
fail_if (server == NULL);
return server->port;
}
static GioHttpServer *
run_server (void)
{
GioHttpServer *server;
GError *error = NULL;
server = g_slice_new0 (GioHttpServer);
server->service = g_threaded_socket_service_new (10);
server->port =
g_socket_listener_add_any_inet_port (G_SOCKET_LISTENER (server->service),
NULL, &error);
fail_if (server->port == 0);
g_signal_connect (server->service, "run", G_CALLBACK (server_callback),
server);
GST_DEBUG ("HTTP server listening on port %u", server->port);
/* check if we can connect to our local http server */
{
GSocketConnection *conn;
GSocketClient *client;
client = g_socket_client_new ();
g_socket_client_set_timeout (client, 2);
conn =
g_socket_client_connect_to_host (client, "127.0.0.1", server->port,
NULL, NULL);
if (conn == NULL) {
GST_INFO ("Couldn't connect to 127.0.0.1:%u", server->port);
g_object_unref (client);
g_slice_free (GioHttpServer, server);
return NULL;
}
g_object_unref (conn);
g_object_unref (client);
}
return server;
}
static void
stop_server (GioHttpServer * server)
{
fail_if (server == NULL);
GST_DEBUG ("Stopping server...");
g_socket_service_stop (server->service);
g_socket_listener_close (G_SOCKET_LISTENER (server->service));
g_object_unref (server->service);
g_slice_free (GioHttpServer, server);
GST_DEBUG ("Server stopped");
}
static void
handoff_cb (GstElement * fakesink, GstBuffer * buf, GstPad * pad,
GstBuffer ** p_outbuf)
{
GST_LOG ("handoff, buf = %p", buf);
if (*p_outbuf == NULL)
*p_outbuf = gst_buffer_ref (buf);
}
static gboolean
run_test (const gchar * path, gint expected_status_code,
gboolean has_body, gboolean has_error)
{
GstStateChangeReturn ret;
GstElement *pipe, *src, *sink;
GstBuffer *buf = NULL;
GstMessage *msg;
gchar *url;
gboolean res = FALSE;
GioHttpServer *server;
guint port;
gboolean done = FALSE;
server = run_server ();
fail_if (server == NULL, "Failed to start up HTTP server");
pipe = gst_pipeline_new (NULL);
fail_unless (pipe != NULL);
src = gst_element_factory_make ("curlhttpsrc", NULL);
fail_unless (src != NULL);
sink = gst_element_factory_make ("fakesink", NULL);
fail_unless (sink != NULL);
gst_bin_add (GST_BIN (pipe), src);
gst_bin_add (GST_BIN (pipe), sink);
fail_unless (gst_element_link (src, sink));
port = get_port_from_server (server);
url = g_strdup_printf ("http://127.0.0.1:%u%s", port, path);
fail_unless (url != NULL);
g_object_set (src, "location", url, NULL);
g_free (url);
g_object_set (src, "automatic-redirect", redirect, NULL);
if (cookies != NULL)
g_object_set (src, "cookies", cookies, NULL);
g_object_set (sink, "signal-handoffs", TRUE, NULL);
/*g_object_set (sink, "dump", TRUE, NULL); */
g_signal_connect (sink, "preroll-handoff", G_CALLBACK (handoff_cb), &buf);
ret = gst_element_set_state (pipe, GST_STATE_PAUSED);
if (ret != GST_STATE_CHANGE_ASYNC) {
GST_DEBUG ("failed to start up curl http src, ret = %d", ret);
goto done;
}
gst_element_set_state (pipe, GST_STATE_PLAYING);
while (!done) {
msg = gst_bus_poll (GST_ELEMENT_BUS (pipe),
GST_MESSAGE_EOS | GST_MESSAGE_ERROR, -1);
GST_DEBUG ("Message: %" GST_PTR_FORMAT, msg);
switch (GST_MESSAGE_TYPE (msg)) {
case GST_MESSAGE_ERROR:{
gchar *debug = NULL;
GError *err = NULL;
gint rc = -1;
const GstStructure *details = NULL;
fail_unless (has_error);
gst_message_parse_error (msg, &err, &debug);
gst_message_parse_error_details (msg, &details);
GST_DEBUG ("debug object: %s", debug);
GST_DEBUG ("err->message: \"%s\"", err->message);
GST_DEBUG ("err->details: %" GST_PTR_FORMAT, details);
if (g_str_has_suffix (err->message, "Not Found"))
rc = 404;
else if (g_str_has_suffix (err->message, "Forbidden"))
rc = 403;
else if (g_str_has_suffix (err->message, "Unauthorized"))
rc = 401;
else if (g_str_has_suffix (err->message, "Found"))
rc = 302;
if (details) {
if (gst_structure_has_field_typed (details, "http-status-code",
G_TYPE_UINT)) {
guint code = 0;
gst_structure_get_uint (details, "http-status-code", &code);
rc = code;
}
}
g_error_free (err);
g_free (debug);
GST_DEBUG ("Got HTTP error %d, expected_status_code %d", rc,
expected_status_code);
res = (rc == expected_status_code);
done = TRUE;
}
break;
case GST_MESSAGE_EOS:
if (!has_error)
done = TRUE;
break;
default:
fail_if (TRUE, "Unexpected GstMessage");
break;
}
gst_message_unref (msg);
}
/* don't wait for more than 10 seconds */
ret = gst_element_get_state (pipe, NULL, NULL, 10 * GST_SECOND);
GST_LOG ("ret = %u", ret);
if (buf != NULL) {
fail_unless (has_body);
/* we want to test the buffer offset, nothing else; if there's a failure
* it might be for lots of reasons (no network connection, whatever), we're
* not interested in those */
GST_DEBUG ("buffer offset = %" G_GUINT64_FORMAT, GST_BUFFER_OFFSET (buf));
/* first buffer should have a 0 offset */
fail_unless (GST_BUFFER_OFFSET (buf) == 0);
gst_buffer_unref (buf);
}
res = TRUE;
done:
gst_element_set_state (pipe, GST_STATE_NULL);
gst_object_unref (pipe);
stop_server (server);
return res;
}
GST_START_TEST (test_first_buffer_has_offset)
{
fail_unless (run_test ("/", 200, TRUE, FALSE));
}
GST_END_TEST;
GST_START_TEST (test_not_found)
{
fail_unless (run_test ("/404", 404, FALSE, TRUE));
}
GST_END_TEST;
GST_START_TEST (test_not_found_with_data)
{
fail_unless (run_test ("/404-with-data", 404, TRUE, TRUE));
}
GST_END_TEST;
GST_START_TEST (test_forbidden)
{
fail_unless (run_test ("/403", 403, FALSE, TRUE));
}
GST_END_TEST;
GST_START_TEST (test_redirect_no)
{
redirect = FALSE;
fail_unless (run_test ("/302", 302, FALSE, FALSE));
}
GST_END_TEST;
GST_START_TEST (test_redirect_yes)
{
redirect = TRUE;
fail_unless (run_test ("/302", 200, TRUE, FALSE));
}
GST_END_TEST;
GST_START_TEST (test_cookies)
{
static const char *biscotti[] = { "delacre=yummie", "koekje=lu", NULL };
gboolean res;
cookies = biscotti;
res = run_test ("/", 200, TRUE, FALSE);
cookies = NULL;
fail_unless (res);
}
GST_END_TEST;
typedef struct _HttpSrcTestDownloader
{
GstElement *bin;
GstElement *src;
GstElement *sink;
GioHttpServer *server;
guint count;
} HttpSrcTestDownloader;
static gboolean
move_element_to_ready (gpointer user_data)
{
HttpSrcTestDownloader *tp = (HttpSrcTestDownloader *) user_data;
GST_TRACE_OBJECT (tp->bin, "Move bin to READY state");
gst_element_set_state (tp->bin, GST_STATE_READY);
return G_SOURCE_REMOVE;
}
static GstPadProbeReturn
src_event_probe (GstPad * pad, GstPadProbeInfo * info, gpointer user_data)
{
HttpSrcTestDownloader *tp = (HttpSrcTestDownloader *) user_data;
GstEvent *event;
event = gst_pad_probe_info_get_event (info);
if (GST_EVENT_TYPE (event) == GST_EVENT_EOS) {
GST_DEBUG_OBJECT (tp->bin, "finished last request");
g_idle_add (move_element_to_ready, tp);
}
return GST_PAD_PROBE_OK;
}
static void
start_next_download (HttpSrcTestDownloader * tp)
{
gchar *url;
url = g_strdup_printf ("http://127.0.0.1:%u/multi/%s-%u",
tp->server->port, GST_ELEMENT_NAME (tp->bin), tp->count);
fail_unless (url != NULL);
GST_DEBUG_OBJECT (tp->bin, "Start next request for: %s", url);
g_object_set (tp->src, "location", url, NULL);
g_free (url);
fail_unless (gst_element_sync_state_with_parent (tp->bin));
}
static HttpSrcTestDownloader *
test_curl_http_src_create_downloader (const gchar * name, guint64 delay)
{
HttpSrcTestDownloader *tp;
gchar *url;
GstPad *src_pad;
tp = g_slice_new0 (HttpSrcTestDownloader);
tp->server = run_server ();
fail_if (tp->server == NULL, "Failed to start up HTTP server");
tp->server->delay = delay;
tp->src = gst_element_factory_make ("curlhttpsrc", NULL);
fail_unless (tp->src != NULL);
url = g_strdup_printf ("http://127.0.0.1:%u/multi/%s-0", tp->server->port,
name);
fail_unless (url != NULL);
g_object_set (tp->src, "location", url, NULL);
g_free (url);
src_pad = gst_element_get_static_pad (tp->src, "src");
fail_unless (src_pad != NULL);
gst_pad_add_probe (src_pad, GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM,
src_event_probe, tp, NULL);
gst_object_unref (src_pad);
tp->sink = gst_element_factory_make ("fakesink", NULL);
fail_unless (tp->sink != NULL);
tp->bin = gst_bin_new (name);
fail_unless (tp->bin != NULL);
gst_bin_add (GST_BIN (tp->bin), tp->src);
gst_bin_add (GST_BIN (tp->bin), tp->sink);
fail_unless (gst_element_link (tp->src, tp->sink));
gst_element_set_locked_state (GST_ELEMENT (tp->bin), TRUE);
return tp;
}
typedef struct _MultipleHttpRequestsContext
{
GMainLoop *loop;
GstElement *pipe;
HttpSrcTestDownloader *downloader1;
HttpSrcTestDownloader *downloader2;
gboolean failed;
} MultipleHttpRequestsContext;
static gboolean
bus_message (GstBus * bus, GstMessage * msg, gpointer user_data)
{
MultipleHttpRequestsContext *context =
(MultipleHttpRequestsContext *) user_data;
gchar *debug;
GError *err;
GstState newstate;
GstState pending;
const GstStructure *details;
GST_TRACE ("Message: %" GST_PTR_FORMAT, msg);
switch (GST_MESSAGE_TYPE (msg)) {
case GST_MESSAGE_STATE_CHANGED:
gst_message_parse_state_changed (msg, NULL, &newstate, &pending);
if (newstate == GST_STATE_PLAYING && pending == GST_STATE_VOID_PENDING &&
GST_MESSAGE_SRC (msg) == GST_OBJECT (context->pipe)) {
GST_DEBUG ("Test ready to start");
start_next_download (context->downloader1);
start_next_download (context->downloader2);
} else if (newstate == GST_STATE_READY
&& pending == GST_STATE_VOID_PENDING) {
if (GST_MESSAGE_SRC (msg) == GST_OBJECT (context->downloader1->bin)) {
if (++context->downloader1->count < 20) {
start_next_download (context->downloader1);
} else {
gst_element_set_state (context->downloader1->bin, GST_STATE_NULL);
if (context->downloader2->count == 20) {
g_main_loop_quit (context->loop);
}
}
} else if (GST_MESSAGE_SRC (msg) ==
GST_OBJECT (context->downloader2->bin)) {
if (++context->downloader2->count < 20) {
start_next_download (context->downloader2);
} else {
gst_element_set_state (context->downloader2->bin, GST_STATE_NULL);
if (context->downloader1->count == 20) {
g_main_loop_quit (context->loop);
}
}
}
}
break;
case GST_MESSAGE_ERROR:
debug = NULL;
err = NULL;
details = NULL;
gst_message_parse_error (msg, &err, &debug);
gst_message_parse_error_details (msg, &details);
GST_DEBUG ("err->debug: %s", debug);
GST_DEBUG ("err->message: \"%s\"", err->message);
GST_DEBUG ("err->details: %" GST_PTR_FORMAT, details);
g_error_free (err);
g_free (debug);
context->failed = TRUE;
g_main_loop_quit (context->loop);
break;
case GST_MESSAGE_EOS:
if (context->downloader1->count == 20
&& context->downloader2->count == 20) {
g_main_loop_quit (context->loop);
}
break;
default:
break;
}
return TRUE;
}
/* test_multiple_http_requests tries to reproduce the way in which
* GstAdaptiveDemux makes use of URI source elements. GstAdaptiveDemux
* creates a bin with the httpsrc element and a queue element and sets the
* locked state of that bin to TRUE, so that it does not follow the state
* transitions of its parent. It then moves this bin to the PLAYING state
* to start each download and back to READY when the download completes.
*/
GST_START_TEST (test_multiple_http_requests)
{
GstStateChangeReturn ret;
MultipleHttpRequestsContext context;
guint watch_id;
GstBus *bus;
context.loop = g_main_loop_new (NULL, FALSE);
context.downloader1 =
test_curl_http_src_create_downloader ("bin1", 5 * G_USEC_PER_SEC / 1000);
fail_unless (context.downloader1 != NULL);
context.downloader2 =
test_curl_http_src_create_downloader ("bin2", 7 * G_USEC_PER_SEC / 1000);
fail_unless (context.downloader2 != NULL);
context.pipe = gst_pipeline_new (NULL);
fail_unless (context.pipe != NULL);
gst_bin_add (GST_BIN_CAST (context.pipe), context.downloader1->bin);
gst_bin_add (GST_BIN_CAST (context.pipe), context.downloader2->bin);
bus = gst_pipeline_get_bus (GST_PIPELINE (context.pipe));
watch_id = gst_bus_add_watch (bus, bus_message, &context);
gst_object_unref (bus);
GST_DEBUG ("Start pipeline playing");
ret = gst_element_set_state (context.pipe, GST_STATE_PLAYING);
fail_unless (ret == GST_STATE_CHANGE_ASYNC
|| ret == GST_STATE_CHANGE_SUCCESS);
g_main_loop_run (context.loop);
g_source_remove (watch_id);
gst_element_set_state (context.pipe, GST_STATE_NULL);
gst_object_unref (context.pipe);
stop_server (context.downloader1->server);
stop_server (context.downloader2->server);
g_slice_free (HttpSrcTestDownloader, context.downloader1);
g_slice_free (HttpSrcTestDownloader, context.downloader2);
g_main_loop_unref (context.loop);
}
GST_END_TEST;
static Suite *
curlhttpsrc_suite (void)
{
TCase *tc_chain;
Suite *s;
/* we don't support exceptions from the proxy, so just unset the environment
* variable - in case it's set in the test environment it would otherwise
* prevent us from connecting to localhost (like jenkins.qa.ubuntu.com) */
g_unsetenv ("http_proxy");
s = suite_create ("curlhttpsrc");
tc_chain = tcase_create ("general");
suite_add_tcase (s, tc_chain);
tcase_add_test (tc_chain, test_first_buffer_has_offset);
tcase_add_test (tc_chain, test_redirect_yes);
tcase_add_test (tc_chain, test_redirect_no);
tcase_add_test (tc_chain, test_not_found);
tcase_add_test (tc_chain, test_not_found_with_data);
tcase_add_test (tc_chain, test_forbidden);
tcase_add_test (tc_chain, test_cookies);
tcase_add_test (tc_chain, test_multiple_http_requests);
return s;
}
GST_CHECK_MAIN (curlhttpsrc);
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