mirror of
https://github.com/google/sandboxed-api.git
synced 2024-03-22 13:11:30 +08:00
118 lines
3.8 KiB
C++
118 lines
3.8 KiB
C++
// Copyright 2020 Google LLC
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// https://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
// Sandboxed version of getinmemory.c
|
|
// HTTP GET request using callbacks
|
|
|
|
#include <cstdlib>
|
|
|
|
#include "../curl_util.h" // NOLINT(build/include)
|
|
#include "../sandbox.h" // NOLINT(build/include)
|
|
#include "absl/strings/str_cat.h"
|
|
#include "sandboxed_api/util/status_macros.h"
|
|
|
|
namespace {
|
|
|
|
absl::Status Example2() {
|
|
// Initialize sandbox2 and sapi
|
|
curl::CurlSapiSandbox sandbox;
|
|
SAPI_RETURN_IF_ERROR(sandbox.Init());
|
|
curl::CurlApi api(&sandbox);
|
|
|
|
// Generate pointer to WriteMemoryCallback function
|
|
void* function_ptr;
|
|
SAPI_RETURN_IF_ERROR(
|
|
sandbox.rpc_channel()->Symbol("WriteToMemory", &function_ptr));
|
|
sapi::v::RemotePtr write_to_memory(function_ptr);
|
|
|
|
// Initialize the curl session
|
|
curl::CURL* curl_handle;
|
|
SAPI_ASSIGN_OR_RETURN(curl_handle, api.curl_easy_init());
|
|
sapi::v::RemotePtr curl(curl_handle);
|
|
if (!curl_handle) {
|
|
return absl::UnavailableError("curl_easy_init failed: Invalid curl handle");
|
|
}
|
|
|
|
int curl_code;
|
|
|
|
// Specify URL to get
|
|
sapi::v::ConstCStr url("http://example.com");
|
|
SAPI_ASSIGN_OR_RETURN(
|
|
curl_code,
|
|
api.curl_easy_setopt_ptr(&curl, curl::CURLOPT_URL, url.PtrBefore()));
|
|
if (curl_code != 0) {
|
|
return absl::UnavailableError(absl::StrCat(
|
|
"curl_easy_setopt_ptr failed: ", curl::StrError(&api, curl_code)));
|
|
}
|
|
|
|
// Set WriteMemoryCallback as the write function
|
|
SAPI_ASSIGN_OR_RETURN(
|
|
curl_code, api.curl_easy_setopt_ptr(&curl, curl::CURLOPT_WRITEFUNCTION,
|
|
&write_to_memory));
|
|
if (curl_code != 0) {
|
|
return absl::UnavailableError(absl::StrCat(
|
|
"curl_easy_setopt_ptr failed: ", curl::StrError(&api, curl_code)));
|
|
}
|
|
|
|
// Pass 'chunk' struct to the callback function
|
|
sapi::v::LenVal chunk(0);
|
|
SAPI_ASSIGN_OR_RETURN(curl_code,
|
|
api.curl_easy_setopt_ptr(&curl, curl::CURLOPT_WRITEDATA,
|
|
chunk.PtrBoth()));
|
|
if (curl_code != 0) {
|
|
return absl::UnavailableError(absl::StrCat(
|
|
"curl_easy_setopt_ptr failed: ", curl::StrError(&api, curl_code)));
|
|
}
|
|
|
|
// Set a user agent
|
|
sapi::v::ConstCStr user_agent("libcurl-agent/1.0");
|
|
SAPI_ASSIGN_OR_RETURN(curl_code,
|
|
api.curl_easy_setopt_ptr(&curl, curl::CURLOPT_USERAGENT,
|
|
user_agent.PtrBefore()));
|
|
if (curl_code != 0) {
|
|
return absl::UnavailableError(absl::StrCat(
|
|
"curl_easy_setopt_ptr failed: ", curl::StrError(&api, curl_code)));
|
|
}
|
|
|
|
// Perform the request
|
|
SAPI_ASSIGN_OR_RETURN(curl_code, api.curl_easy_perform(&curl));
|
|
if (curl_code != 0) {
|
|
return absl::UnavailableError(absl::StrCat(
|
|
"curl_easy_perform failed: ", curl::StrError(&api, curl_code)));
|
|
}
|
|
|
|
// Retrieve memory size
|
|
SAPI_RETURN_IF_ERROR(sandbox.TransferFromSandboxee(&chunk));
|
|
std::cout << "memory size: " << chunk.GetDataSize() << " bytes" << std::endl;
|
|
|
|
// Cleanup curl
|
|
SAPI_RETURN_IF_ERROR(api.curl_easy_cleanup(&curl));
|
|
|
|
return absl::OkStatus();
|
|
}
|
|
|
|
} // namespace
|
|
|
|
int main(int argc, char* argv[]) {
|
|
gflags::ParseCommandLineFlags(&argc, &argv, true);
|
|
google::InitGoogleLogging(argv[0]);
|
|
|
|
if (absl::Status status = Example2(); !status.ok()) {
|
|
LOG(ERROR) << "Example2 failed: " << status.ToString();
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
return EXIT_SUCCESS;
|
|
}
|