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// Copyright 2018 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "gtest/gtest.h"
#include "osp/msgs/osp_messages.h"
using openscreen::msgs::CborEncodeBuffer;
using openscreen::msgs::HttpHeader;
using openscreen::msgs::PresentationConnectionMessage;
using openscreen::msgs::PresentationStartRequest;
using openscreen::msgs::PresentationUrlAvailabilityRequest;
namespace openscreen {
namespace osp {
// TODO(btolsch): This is in the current (draft) spec, but should we actually
// allow this?
TEST(PresentationMessagesTest, EncodeRequestZeroUrls) {
uint8_t buffer[256];
std::vector<std::string> urls;
ssize_t bytes_out = EncodePresentationUrlAvailabilityRequest(
PresentationUrlAvailabilityRequest{3, urls}, buffer, sizeof(buffer));
ASSERT_LE(bytes_out, static_cast<ssize_t>(sizeof(buffer)));
ASSERT_GT(bytes_out, 0);
PresentationUrlAvailabilityRequest decoded_request;
ssize_t bytes_read = DecodePresentationUrlAvailabilityRequest(
buffer, bytes_out, &decoded_request);
ASSERT_EQ(bytes_read, bytes_out);
EXPECT_EQ(3u, decoded_request.request_id);
EXPECT_EQ(urls, decoded_request.urls);
}
TEST(PresentationMessagesTest, EncodeRequestOneUrl) {
uint8_t buffer[256];
std::vector<std::string> urls{"https://example.com/receiver.html"};
ssize_t bytes_out = EncodePresentationUrlAvailabilityRequest(
PresentationUrlAvailabilityRequest{7, urls}, buffer, sizeof(buffer));
ASSERT_LE(bytes_out, static_cast<ssize_t>(sizeof(buffer)));
ASSERT_GT(bytes_out, 0);
PresentationUrlAvailabilityRequest decoded_request;
ssize_t bytes_read = DecodePresentationUrlAvailabilityRequest(
buffer, bytes_out, &decoded_request);
ASSERT_EQ(bytes_read, bytes_out);
EXPECT_EQ(7u, decoded_request.request_id);
EXPECT_EQ(urls, decoded_request.urls);
}
TEST(PresentationMessagesTest, EncodeRequestMultipleUrls) {
uint8_t buffer[256];
std::vector<std::string> urls{"https://example.com/receiver.html",
"https://openscreen.org/demo_receiver.html",
"https://turt.le/asdfXCV"};
ssize_t bytes_out = EncodePresentationUrlAvailabilityRequest(
PresentationUrlAvailabilityRequest{7, urls}, buffer, sizeof(buffer));
ASSERT_LE(bytes_out, static_cast<ssize_t>(sizeof(buffer)));
ASSERT_GT(bytes_out, 0);
PresentationUrlAvailabilityRequest decoded_request;
ssize_t bytes_read = DecodePresentationUrlAvailabilityRequest(
buffer, bytes_out, &decoded_request);
ASSERT_EQ(bytes_read, bytes_out);
EXPECT_EQ(7u, decoded_request.request_id);
EXPECT_EQ(urls, decoded_request.urls);
}
TEST(PresentationMessagesTest, EncodeWouldOverflow) {
uint8_t buffer[40];
std::vector<std::string> urls{"https://example.com/receiver.html"};
ssize_t bytes_out = EncodePresentationUrlAvailabilityRequest(
PresentationUrlAvailabilityRequest{7, urls}, buffer, sizeof(buffer));
ASSERT_GT(bytes_out, static_cast<ssize_t>(sizeof(buffer)));
}
// TODO(btolsch): Expand invalid utf8 testing to good/bad files and fuzzing.
TEST(PresentationMessagesTest, EncodeInvalidUtf8) {
uint8_t buffer[256];
std::vector<std::string> urls{"\xc0"};
ssize_t bytes_out = EncodePresentationUrlAvailabilityRequest(
PresentationUrlAvailabilityRequest{7, urls}, buffer, sizeof(buffer));
ASSERT_GT(0, bytes_out);
}
TEST(PresentationMessagesTest, DecodeInvalidUtf8) {
uint8_t buffer[256];
std::vector<std::string> urls{"https://example.com/receiver.html"};
ssize_t bytes_out = EncodePresentationUrlAvailabilityRequest(
PresentationUrlAvailabilityRequest{7, urls}, buffer, sizeof(buffer));
ASSERT_LE(bytes_out, static_cast<ssize_t>(sizeof(buffer)));
ASSERT_GT(bytes_out, 0);
// Manually change a character in the url string to be non-utf8.
buffer[30] = 0xc0;
PresentationUrlAvailabilityRequest decoded_request;
ssize_t bytes_read = DecodePresentationUrlAvailabilityRequest(
buffer, bytes_out, &decoded_request);
ASSERT_GT(0, bytes_read);
}
TEST(PresentationMessagesTest, InitiationRequest) {
uint8_t buffer[256];
const std::string kPresentationId = "lksdjfloiqwerlkjasdlfq";
const std::string kPresentationUrl = "https://example.com/receiver.html";
std::vector<HttpHeader> headers;
ssize_t bytes_out = EncodePresentationStartRequest(
PresentationStartRequest{13, kPresentationId, kPresentationUrl, headers},
buffer, sizeof(buffer));
ASSERT_LE(bytes_out, static_cast<ssize_t>(sizeof(buffer)));
ASSERT_GT(bytes_out, 0);
PresentationStartRequest decoded_request;
ssize_t bytes_read =
DecodePresentationStartRequest(buffer, bytes_out, &decoded_request);
ASSERT_EQ(bytes_read, bytes_out);
EXPECT_EQ(13u, decoded_request.request_id);
EXPECT_EQ(kPresentationId, decoded_request.presentation_id);
EXPECT_EQ(kPresentationUrl, decoded_request.url);
EXPECT_EQ(0, (int)decoded_request.headers.size());
}
TEST(PresentationMessagesTest, InitiationRequestWithoutOptional) {
uint8_t buffer[256];
const std::string kPresentationId = "lksdjfloiqwerlkjasdlfq";
const std::string kPresentationUrl = "https://example.com/receiver.html";
std::vector<HttpHeader> headers;
ssize_t bytes_out = EncodePresentationStartRequest(
PresentationStartRequest{13, kPresentationId, kPresentationUrl, headers},
buffer, sizeof(buffer));
ASSERT_LE(bytes_out, static_cast<ssize_t>(sizeof(buffer)));
ASSERT_GT(bytes_out, 0);
PresentationStartRequest decoded_request;
ssize_t bytes_read =
DecodePresentationStartRequest(buffer, bytes_out, &decoded_request);
ASSERT_EQ(bytes_read, bytes_out);
EXPECT_EQ(13u, decoded_request.request_id);
EXPECT_EQ(kPresentationId, decoded_request.presentation_id);
EXPECT_EQ(kPresentationUrl, decoded_request.url);
EXPECT_EQ(0, (int)decoded_request.headers.size());
}
TEST(PresentationMessagesTest, EncodeConnectionMessageString) {
uint8_t buffer[256];
PresentationConnectionMessage message;
message.connection_id = 1234;
message.message.which =
PresentationConnectionMessage::Message::Which::kString;
new (&message.message.str) std::string("test message as a string");
ssize_t bytes_out =
EncodePresentationConnectionMessage(message, buffer, sizeof(buffer));
ASSERT_LE(bytes_out, static_cast<ssize_t>(sizeof(buffer)));
ASSERT_GT(bytes_out, 0);
PresentationConnectionMessage decoded_message;
ssize_t bytes_read =
DecodePresentationConnectionMessage(buffer, bytes_out, &decoded_message);
ASSERT_GT(bytes_read, 0);
EXPECT_EQ(bytes_read, bytes_out);
EXPECT_EQ(message.connection_id, decoded_message.connection_id);
ASSERT_EQ(message.message.which, decoded_message.message.which);
EXPECT_EQ(message.message.str, decoded_message.message.str);
}
TEST(PresentationMessagesTest, EncodeConnectionMessageBytes) {
uint8_t buffer[256];
PresentationConnectionMessage message;
message.connection_id = 1234;
message.message.which = PresentationConnectionMessage::Message::Which::kBytes;
new (&message.message.bytes)
std::vector<uint8_t>{0, 1, 2, 3, 255, 254, 253, 86, 71, 0, 0, 1, 0, 2};
ssize_t bytes_out =
EncodePresentationConnectionMessage(message, buffer, sizeof(buffer));
ASSERT_LE(bytes_out, static_cast<ssize_t>(sizeof(buffer)));
ASSERT_GT(bytes_out, 0);
PresentationConnectionMessage decoded_message;
ssize_t bytes_read =
DecodePresentationConnectionMessage(buffer, bytes_out, &decoded_message);
ASSERT_GT(bytes_read, 0);
EXPECT_EQ(bytes_read, bytes_out);
EXPECT_EQ(message.connection_id, decoded_message.connection_id);
ASSERT_EQ(message.message.which, decoded_message.message.which);
EXPECT_EQ(message.message.bytes, decoded_message.message.bytes);
}
TEST(PresentationMessagesTest, CborEncodeBufferSmall) {
std::vector<std::string> urls{"https://example.com/receiver.html"};
PresentationUrlAvailabilityRequest request{7, urls};
CborEncodeBuffer buffer;
ASSERT_TRUE(EncodePresentationUrlAvailabilityRequest(request, &buffer));
EXPECT_LT(buffer.size(), CborEncodeBuffer::kDefaultInitialEncodeBufferSize);
PresentationUrlAvailabilityRequest decoded_request;
size_t bytes_read = DecodePresentationUrlAvailabilityRequest(
buffer.data() + 1, buffer.size() - 1, &decoded_request);
EXPECT_EQ(bytes_read, buffer.size() - 1);
EXPECT_EQ(request.request_id, decoded_request.request_id);
EXPECT_EQ(request.urls, decoded_request.urls);
}
TEST(PresentationMessagesTest, CborEncodeBufferMedium) {
std::string url = "https://example.com/receiver.html";
std::vector<std::string> urls{};
for (int i = 0; i < 100; ++i) {
urls.push_back(url);
}
PresentationUrlAvailabilityRequest request{7, urls};
CborEncodeBuffer buffer;
ASSERT_TRUE(EncodePresentationUrlAvailabilityRequest(request, &buffer));
EXPECT_GT(buffer.size(), CborEncodeBuffer::kDefaultInitialEncodeBufferSize);
PresentationUrlAvailabilityRequest decoded_request;
ssize_t bytes_read = DecodePresentationUrlAvailabilityRequest(
buffer.data() + 1, buffer.size() - 1, &decoded_request);
ASSERT_GT(bytes_read, 0);
EXPECT_EQ(static_cast<size_t>(bytes_read), buffer.size() - 1);
EXPECT_EQ(request.request_id, decoded_request.request_id);
EXPECT_EQ(request.urls, decoded_request.urls);
}
TEST(PresentationMessagesTest, CborEncodeBufferTooLarge) {
std::vector<std::string> urls{"https://example.com/receiver.html"};
PresentationUrlAvailabilityRequest request{7, urls};
CborEncodeBuffer buffer{10, 30};
ASSERT_FALSE(EncodePresentationUrlAvailabilityRequest(request, &buffer));
}
} // namespace osp
} // namespace openscreen
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