1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
/*
*
* Copyright 2015 gRPC authors.
*
* 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
*
* http://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.
*
*/
#include "src/cpp/server/secure_server_credentials.h"
#include <functional>
#include <map>
#include <memory>
#include <grpcpp/impl/codegen/slice.h>
#include <grpcpp/impl/grpc_library.h>
#include <grpcpp/security/auth_metadata_processor.h>
#include "src/cpp/common/secure_auth_context.h"
namespace grpc {
void AuthMetadataProcessorAyncWrapper::Destroy(void* wrapper) {
auto* w = static_cast<AuthMetadataProcessorAyncWrapper*>(wrapper);
delete w;
}
void AuthMetadataProcessorAyncWrapper::Process(
void* wrapper, grpc_auth_context* context, const grpc_metadata* md,
size_t num_md, grpc_process_auth_metadata_done_cb cb, void* user_data) {
auto* w = static_cast<AuthMetadataProcessorAyncWrapper*>(wrapper);
if (!w->processor_) {
// Early exit.
cb(user_data, nullptr, 0, nullptr, 0, GRPC_STATUS_OK, nullptr);
return;
}
if (w->processor_->IsBlocking()) {
w->thread_pool_->Add([w, context, md, num_md, cb, user_data] {
w->AuthMetadataProcessorAyncWrapper::InvokeProcessor(context, md, num_md,
cb, user_data);
});
} else {
// invoke directly.
w->InvokeProcessor(context, md, num_md, cb, user_data);
}
}
void AuthMetadataProcessorAyncWrapper::InvokeProcessor(
grpc_auth_context* context, const grpc_metadata* md, size_t num_md,
grpc_process_auth_metadata_done_cb cb, void* user_data) {
AuthMetadataProcessor::InputMetadata metadata;
for (size_t i = 0; i < num_md; i++) {
metadata.insert(std::make_pair(StringRefFromSlice(&md[i].key),
StringRefFromSlice(&md[i].value)));
}
SecureAuthContext ctx(context);
AuthMetadataProcessor::OutputMetadata consumed_metadata;
AuthMetadataProcessor::OutputMetadata response_metadata;
Status status = processor_->Process(metadata, &ctx, &consumed_metadata,
&response_metadata);
std::vector<grpc_metadata> consumed_md;
for (const auto& consumed : consumed_metadata) {
grpc_metadata md_entry;
md_entry.key = SliceReferencingString(consumed.first);
md_entry.value = SliceReferencingString(consumed.second);
consumed_md.push_back(md_entry);
}
std::vector<grpc_metadata> response_md;
for (const auto& response : response_metadata) {
grpc_metadata md_entry;
md_entry.key = SliceReferencingString(response.first);
md_entry.value = SliceReferencingString(response.second);
response_md.push_back(md_entry);
}
auto consumed_md_data = consumed_md.empty() ? nullptr : &consumed_md[0];
auto response_md_data = response_md.empty() ? nullptr : &response_md[0];
cb(user_data, consumed_md_data, consumed_md.size(), response_md_data,
response_md.size(), static_cast<grpc_status_code>(status.error_code()),
status.error_message().c_str());
}
int SecureServerCredentials::AddPortToServer(const std::string& addr,
grpc_server* server) {
return grpc_server_add_http2_port(server, addr.c_str(), creds_);
}
void SecureServerCredentials::SetAuthMetadataProcessor(
const std::shared_ptr<grpc::AuthMetadataProcessor>& processor) {
auto* wrapper = new grpc::AuthMetadataProcessorAyncWrapper(processor);
grpc_server_credentials_set_auth_metadata_processor(
creds_, {grpc::AuthMetadataProcessorAyncWrapper::Process,
grpc::AuthMetadataProcessorAyncWrapper::Destroy, wrapper});
}
std::shared_ptr<ServerCredentials> SslServerCredentials(
const grpc::SslServerCredentialsOptions& options) {
std::vector<grpc_ssl_pem_key_cert_pair> pem_key_cert_pairs;
for (const auto& key_cert_pair : options.pem_key_cert_pairs) {
grpc_ssl_pem_key_cert_pair p = {key_cert_pair.private_key.c_str(),
key_cert_pair.cert_chain.c_str()};
pem_key_cert_pairs.push_back(p);
}
grpc_server_credentials* c_creds = grpc_ssl_server_credentials_create_ex(
options.pem_root_certs.empty() ? nullptr : options.pem_root_certs.c_str(),
pem_key_cert_pairs.empty() ? nullptr : &pem_key_cert_pairs[0],
pem_key_cert_pairs.size(),
options.force_client_auth
? GRPC_SSL_REQUEST_AND_REQUIRE_CLIENT_CERTIFICATE_AND_VERIFY
: options.client_certificate_request,
nullptr);
return std::shared_ptr<ServerCredentials>(
new SecureServerCredentials(c_creds));
}
namespace experimental {
std::shared_ptr<ServerCredentials> AltsServerCredentials(
const AltsServerCredentialsOptions& /* options */) {
grpc_alts_credentials_options* c_options =
grpc_alts_credentials_server_options_create();
grpc_server_credentials* c_creds =
grpc_alts_server_credentials_create(c_options);
grpc_alts_credentials_options_destroy(c_options);
return std::shared_ptr<ServerCredentials>(
new SecureServerCredentials(c_creds));
}
std::shared_ptr<ServerCredentials> LocalServerCredentials(
grpc_local_connect_type type) {
return std::shared_ptr<ServerCredentials>(
new SecureServerCredentials(grpc_local_server_credentials_create(type)));
}
std::shared_ptr<ServerCredentials> TlsServerCredentials(
const grpc::experimental::TlsServerCredentialsOptions& options) {
return std::shared_ptr<ServerCredentials>(new SecureServerCredentials(
grpc_tls_server_credentials_create(options.c_credentials_options())));
}
} // namespace experimental
} // namespace grpc
|
