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transcoding_deep_struct.t
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194 lines (158 loc) · 6.13 KB
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# Copyright (C) Extensible Service Proxy Authors
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
################################################################################
#
use strict;
use warnings;
################################################################################
use src::nginx::t::ApiManager; # Must be first (sets up import path to the Nginx test module)
use src::nginx::t::HttpServer;
use Test::Nginx; # Imports Nginx's test module
use Test::More; # And the test framework
use JSON::PP;
################################################################################
# Port assignments
my $NginxPort = ApiManager::pick_port();
my $ServiceControlPort = ApiManager::pick_port();
my $GrpcServerPort = ApiManager::pick_port();
my $t = Test::Nginx->new()->has(qw/http proxy/)->plan(8);
$t->write_file('service.pb.txt',
ApiManager::get_transcoding_test_service_config(
'endpoints-transcoding-test.cloudendpointsapis.com',
"http://127.0.0.1:${ServiceControlPort}"));
$t->write_file_expand('nginx.conf', <<EOF);
%%TEST_GLOBALS%%
daemon off;
events {
worker_connections 32;
}
http {
%%TEST_GLOBALS_HTTP%%
server_tokens off;
server {
listen 127.0.0.1:${NginxPort};
server_name localhost;
location / {
endpoints {
api service.pb.txt;
on;
}
grpc_pass 127.0.0.1:${GrpcServerPort};
}
}
}
EOF
$t->run_daemon(\&service_control, $t, $ServiceControlPort, 'servicecontrol.log');
ApiManager::run_transcoding_test_server($t, 'server.log', "127.0.0.1:${GrpcServerPort}");
is($t->waitforsocket("127.0.0.1:${ServiceControlPort}"), 1, "Service control socket ready.");
is($t->waitforsocket("127.0.0.1:${GrpcServerPort}"), 1, "GRPC test server socket ready.");
$t->run();
is($t->waitforsocket("127.0.0.1:${NginxPort}"), 1, "Nginx socket ready.");
################################################################################
# Both ESP and the backend should be able to handle 15 deep struct
my $request = generate_deep_json(15, 0);
my $request_size = length($request);
my $response = ApiManager::http($NginxPort,<<EOF);
POST /echostruct?key=api-key HTTP/1.0
Host: 127.0.0.1:${NginxPort}
Content-Type: application/json
Content-Length: $request_size
$request
EOF
ok(ApiManager::verify_http_json_response($response, decode_json($request)),
"Valid deep struct response was as expected");
# A valid JSON 100 levels deep. Backend will be unable to parse it (due to
# protobuf library limitations), but we will make sure ESP handles the request
# gracefully and does not crash.
$request = generate_deep_json(100, 0);
$request_size = length($request);
$response = ApiManager::http($NginxPort,<<EOF);
POST /echostruct?key=api-key HTTP/1.0
Host: 127.0.0.1:${NginxPort}
Content-Type: application/json
Content-Length: $request_size
$request
EOF
# 500 Bad request error coming from the backend as it fails to parse the proto so deep.
like($response, qr/HTTP\/1\.1 500 Internal Server/, 'Got a 500 from the backend.');
like($response, qr/Content-Type: application\/json/i, 'Content-type is application/json');
# An invalid JSON 100 levels deep. ESP must be able to detect it's invalid
# and return 400 Bad request.
my $request = generate_deep_json(100, 1);
my $request_size = length($request);
$response = ApiManager::http($NginxPort,<<EOF);
POST /echostruct?key=api-key HTTP/1.0
Host: 127.0.0.1:${NginxPort}
Content-Type: application/json
Content-Length: $request_size
$request
EOF
# Bad Request coming from ESP
like($response, qr/HTTP\/1\.1 400 Bad Request/, 'Got a 400 from ESP.');
like($response, qr/Content-Type: application\/json/i, 'Content-type is application/json');
$t->stop_daemons();
################################################################################
sub service_control {
my ($t, $port, $file) = @_;
my $server = HttpServer->new($port, $t->testdir() . '/' . $file)
or die "Can't create test server socket: $!\n";
$server->on_sub('POST', '/v1/services/endpoints-transcoding-test.cloudendpointsapis.com:check', sub {
my ($headers, $body, $client) = @_;
print $client <<EOF;
HTTP/1.1 200 OK
Content-Type: application/json
Connection: close
EOF
});
$server->on_sub('POST', '/v1/services/endpoints-transcoding-test.cloudendpointsapis.com:report', sub {
my ($headers, $body, $client) = @_;
print $client <<EOF;
HTTP/1.1 200 OK
Content-Type: application/json
Connection: close
EOF
});
$server->run();
}
################################################################################
sub generate_deep_json {
my ($depth, $invalid) = @_;
my $begin = '{"a" : ';
my $deep_value = '"vv"';
my $end = '}';
my $json = "";
for (my $i=0; $i<$depth; $i++) {
$json .= $begin;
}
# if $invalid is 1, we don't add the value. That will make the JSON invalid,
# but ESP will have to parse it all the way to the last level to find out.
if (!$invalid) {
$json .= $deep_value;
}
for (my $i=0; $i<$depth; $i++) {
$json .= $end;
}
return $json;
}