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cpl_google_cloud.h
1 /**********************************************************************
2 * Project: CPL - Common Portability Library
3 * Purpose: Google Cloud Storage routines
4 * Author: Even Rouault <even.rouault at spatialys.com>
5 *
6 **********************************************************************
7 * Copyright (c) 2017, Even Rouault <even.rouault at spatialys.com>
8 *
9 * Permission is hereby granted, free of charge, to any person obtaining a
10 * copy of this software and associated documentation files (the "Software"),
11 * to deal in the Software without restriction, including without limitation
12 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13 * and/or sell copies of the Software, and to permit persons to whom the
14 * Software is furnished to do so, subject to the following conditions:
15 *
16 * The above copyright notice and this permission notice shall be included
17 * in all copies or substantial portions of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
23 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
24 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
25 * DEALINGS IN THE SOFTWARE.
26 ****************************************************************************/
27
28 #ifndef CPL_GOOGLE_CLOUD_INCLUDED_H
29 #define CPL_GOOGLE_CLOUD_INCLUDED_H
30
31 #ifndef DOXYGEN_SKIP
32
33 #include <cstddef>
34
35 #include "cpl_string.h"
36
37 #ifdef HAVE_CURL
38
39 #include <curl/curl.h>
40 #include "cpl_http.h"
41 #include "cpl_aws.h"
42 #include <map>
43
44 class VSIGSHandleHelper final: public IVSIS3LikeHandleHelper
45 {
46 CPL_DISALLOW_COPY_ASSIGN(VSIGSHandleHelper)
47
48 CPLString m_osURL;
49 CPLString m_osEndpoint;
50 CPLString m_osBucketObjectKey;
51 CPLString m_osSecretAccessKey;
52 CPLString m_osAccessKeyId;
53 bool m_bUseHeaderFile;
54 GOA2Manager m_oManager;
55
56 static bool GetConfiguration(CSLConstList papszOptions,
57 CPLString& osSecretAccessKey,
58 CPLString& osAccessKeyId,
59 CPLString& osHeaderFile,
60 GOA2Manager& oManager);
61
62 static bool GetConfigurationFromConfigFile(
63 CPLString& osSecretAccessKey,
64 CPLString& osAccessKeyId,
65 CPLString& osOAuth2RefreshToken,
66 CPLString& osOAuth2ClientId,
67 CPLString& osOAuth2ClientSecret,
68 CPLString& osCredentials);
69
70 void RebuildURL() override;
71
72 public:
73 VSIGSHandleHelper(const CPLString& osEndpoint,
74 const CPLString& osBucketObjectKey,
75 const CPLString& osSecretAccessKey,
76 const CPLString& osAccessKeyId,
77 bool bUseHeaderFile,
78 const GOA2Manager& oManager);
79 ~VSIGSHandleHelper();
80
81 static VSIGSHandleHelper* BuildFromURI(const char* pszURI,
82 const char* pszFSPrefix,
83 CSLConstList papszOptions = nullptr);
84
85 struct curl_slist* GetCurlHeaders(
86 const CPLString& osVerbosVerb,
87 const struct curl_slist* psExistingHeaders,
88 const void *pabyDataContent = nullptr,
89 size_t nBytesContent = 0) const override;
90
91 const CPLString& GetURL() const override { return m_osURL; }
92
93 CPLString GetSignedURL(CSLConstList papszOptions);
94
95 static void CleanMutex();
96 static void ClearCache();
97 };
98
99 #endif /* HAVE_CURL */
100
101 #endif /* #ifndef DOXYGEN_SKIP */
102
103 #endif /* CPL_GOOGLE_CLOUD_INCLUDED_H */
CPLString
Convenient string class based on std::string.
Definition: cpl_string.h:329
cpl_string.h
Various convenience functions for working with strings and string lists.
cpl_http.h
Interface for downloading HTTP, FTP documents.
CSLConstList
char ** CSLConstList
Type of a constant null-terminated list of nul terminated strings.
Definition: cpl_port.h:1186
GOA2Manager
Manager of Google OAuth2 authentication.
Definition: cpl_http.h:157
CPL_DISALLOW_COPY_ASSIGN
#define CPL_DISALLOW_COPY_ASSIGN(ClassName)
Helper to remove the copy and assignment constructors so that the compiler will not generate the defa...
Definition: cpl_port.h:989

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