1 // Copyright 2020 Google LLC
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // https://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14
15 // Sandboxed version of simple.c
16 // Simple HTTP GET request
17
18 #include <cstdlib>
19
20 #include "../curl_util.h" // NOLINT(build/include)
21 #include "../sandbox.h" // NOLINT(build/include)
22 #include "curl_sapi.sapi.h" // NOLINT(build/include)
23 #include "absl/strings/str_cat.h"
24 #include "sandboxed_api/util/status_macros.h"
25
26 namespace {
27
Example1()28 absl::Status Example1() {
29 // Initialize sandbox2 and sapi
30 curl::CurlSapiSandbox sandbox;
31 SAPI_RETURN_IF_ERROR(sandbox.Init());
32 curl::CurlApi api(&sandbox);
33
34 // Initialize the curl session
35 curl::CURL* curl_handle;
36 SAPI_ASSIGN_OR_RETURN(curl_handle, api.curl_easy_init());
37 sapi::v::RemotePtr curl(curl_handle);
38 if (!curl_handle) {
39 return absl::UnknownError("curl_easy_init failed: Invalid curl handle");
40 }
41
42 int curl_code;
43
44 // Specify URL to get
45 sapi::v::ConstCStr url("http://example.com");
46 SAPI_ASSIGN_OR_RETURN(
47 curl_code,
48 api.curl_easy_setopt_ptr(&curl, curl::CURLOPT_URL, url.PtrBefore()));
49 if (curl_code != 0) {
50 return absl::UnknownError(absl::StrCat("curl_easy_setopt_ptr failed: ",
51 curl::StrError(&api, curl_code)));
52 }
53
54 // Set the library to follow a redirection
55 SAPI_ASSIGN_OR_RETURN(
56 curl_code,
57 api.curl_easy_setopt_long(&curl, curl::CURLOPT_FOLLOWLOCATION, 1l));
58 if (curl_code != 0) {
59 return absl::UnknownError(absl::StrCat("curl_easy_setopt_long failed: ",
60 curl::StrError(&api, curl_code)));
61 }
62
63 // Disable authentication of peer certificate
64 SAPI_ASSIGN_OR_RETURN(
65 curl_code,
66 api.curl_easy_setopt_long(&curl, curl::CURLOPT_SSL_VERIFYPEER, 0l));
67 if (curl_code != 0) {
68 return absl::UnknownError(absl::StrCat("curl_easy_setopt_long failed: ",
69 curl::StrError(&api, curl_code)));
70 }
71
72 // Perform the request
73 SAPI_ASSIGN_OR_RETURN(curl_code, api.curl_easy_perform(&curl));
74 if (curl_code != 0) {
75 return absl::UnknownError(absl::StrCat("curl_easy_perform failed: ",
76 curl::StrError(&api, curl_code)));
77 }
78
79 // Cleanup curl
80 SAPI_RETURN_IF_ERROR(api.curl_easy_cleanup(&curl));
81
82 return absl::OkStatus();
83 }
84
85 } // namespace
86
main(int argc,char * argv[])87 int main(int argc, char* argv[]) {
88 gflags::ParseCommandLineFlags(&argc, &argv, true);
89 sapi::InitLogging(argv[0]);
90
91 if (absl::Status status = Example1(); !status.ok()) {
92 LOG(ERROR) << "Example1 failed: " << status.ToString();
93 return EXIT_FAILURE;
94 }
95
96 return EXIT_SUCCESS;
97 }
98