1 /*
2 * Copyright 2009-2017 Alibaba Cloud All rights reserved.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "SignUtils.h"
18 #include "Utils.h"
19 #include <sstream>
20 #include <map>
21 #include <set>
22 #include <alibabacloud/oss/Const.h>
23 #include <alibabacloud/oss/Types.h>
24 #include <alibabacloud/oss/http/HttpType.h>
25
26 using namespace AlibabaCloud::OSS;
27
28 const static std::set<std::string> ParamtersToSign =
29 {
30 "acl", "location", "bucketInfo", "stat", "referer", "cors", "website", "restore",
31 "logging", "symlink", "qos", "uploadId", "uploads", "partNumber",
32 "response-content-type", "response-content-language", "response-expires",
33 "response-cache-control", "response-content-disposition", "response-content-encoding",
34 "append", "position", "lifecycle", "delete", "live", "status", "comp", "vod",
35 "startTime", "endTime", "x-oss-process", "security-token", "objectMeta",
36 "callback", "callback-var", "tagging", "policy", "requestPayment", "x-oss-traffic-limit",
37 "encryption", "qosInfo", "versioning", "versionId", "versions",
38 "x-oss-request-payer", "sequential", "inventory", "inventoryId", "continuation-token"
39 };
40
SignUtils(const std::string & version)41 SignUtils::SignUtils(const std::string &version):
42 signVersion_(version),
43 canonicalString_()
44 {
45 }
46
~SignUtils()47 SignUtils::~SignUtils()
48 {
49 }
50
CanonicalString() const51 const std::string &SignUtils::CanonicalString() const
52 {
53 return canonicalString_;
54 }
55
build(const std::string & method,const std::string & resource,const std::string & date,const HeaderCollection & headers,const ParameterCollection & parameters)56 void SignUtils::build(const std::string &method,
57 const std::string &resource,
58 const std::string &date,
59 const HeaderCollection &headers,
60 const ParameterCollection ¶meters)
61 {
62 std::stringstream ss;
63
64 /*Version 1*/
65 // VERB + "\n" +
66 // Content-MD5 + "\n" +
67 // Content-Type + "\n"
68 // Date + "\n" +
69 // CanonicalizedOSSHeaders +
70 // CanonicalizedResource) +
71
72 //common headers
73 ss << method << "\n";
74 if (headers.find(Http::CONTENT_MD5) != headers.end()) {
75 ss << headers.at(Http::CONTENT_MD5);
76 }
77 ss << "\n";
78 if (headers.find(Http::CONTENT_TYPE) != headers.end()) {
79 ss << headers.at(Http::CONTENT_TYPE);
80 }
81 ss << "\n";
82 //Date or EXPIRES
83 ss << date << "\n";
84
85 //CanonicalizedOSSHeaders, start with x-oss-
86 for (const auto &header : headers) {
87 std::string lower = Trim(ToLower(header.first.c_str()).c_str());
88 if (lower.compare(0, 6, "x-oss-", 6) == 0) {
89 std::string value = Trim(header.second.c_str());
90 ss << lower << ":" << value << "\n";
91 }
92 }
93
94 //CanonicalizedResource, the sub resouce in
95 ss << resource;
96 char separator = '?';
97 for (auto const& param : parameters) {
98 if (ParamtersToSign.find(param.first) == ParamtersToSign.end()) {
99 continue;
100 }
101
102 ss << separator;
103 ss << param.first;
104 if (!param.second.empty()) {
105 ss << "=" << param.second;
106 }
107 separator = '&';
108 }
109
110 canonicalString_ = ss.str();
111 }
112
build(const std::string & expires,const std::string & resource,const ParameterCollection & parameters)113 void SignUtils::build(const std::string &expires,
114 const std::string &resource,
115 const ParameterCollection ¶meters)
116 {
117 std::stringstream ss;
118 ss << expires << '\n';
119 for(auto const& param : parameters)
120 {
121 ss << param.first << ":" << param.second << '\n';
122 }
123 ss << resource;
124 canonicalString_ = ss.str();
125 }
126