1 /***************************************************************************
2  *                                  _   _ ____  _
3  *  Project                     ___| | | |  _ \| |
4  *                             / __| | | | |_) | |
5  *                            | (__| |_| |  _ <| |___
6  *                             \___|\___/|_| \_\_____|
7  *
8  * Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
9  *
10  * This software is licensed as described in the file COPYING, which
11  * you should have received as part of this distribution. The terms
12  * are also available at https://curl.haxx.se/docs/copyright.html.
13  *
14  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
15  * copies of the Software, and permit persons to whom the Software is
16  * furnished to do so, under the terms of the COPYING file.
17  *
18  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19  * KIND, either express or implied.
20  *
21  * RFC6749 OAuth 2.0 Authorization Framework
22  *
23  ***************************************************************************/
24 
25 #include "curl_setup.h"
26 
27 #if !defined(CURL_DISABLE_IMAP) || !defined(CURL_DISABLE_SMTP) || \
28   !defined(CURL_DISABLE_POP3)
29 
30 #include <curl/curl.h>
31 #include "urldata.h"
32 
33 #include "vauth/vauth.h"
34 #include "curl_base64.h"
35 #include "warnless.h"
36 #include "curl_printf.h"
37 
38 /* The last #include files should be: */
39 #include "curl_memory.h"
40 #include "memdebug.h"
41 
42 /*
43  * Curl_auth_create_oauth_bearer_message()
44  *
45  * This is used to generate an already encoded OAuth 2.0 message ready for
46  * sending to the recipient.
47  *
48  * Parameters:
49  *
50  * data[in]         - The session handle.
51  * user[in]         - The user name.
52  * host[in]         - The host name.
53  * port[in]         - The port(when not Port 80).
54  * bearer[in]       - The bearer token.
55  * outptr[in / out] - The address where a pointer to newly allocated memory
56  *                    holding the result will be stored upon completion.
57  * outlen[out]      - The length of the output message.
58  *
59  * Returns CURLE_OK on success.
60  */
Curl_auth_create_oauth_bearer_message(struct Curl_easy * data,const char * user,const char * host,const long port,const char * bearer,char ** outptr,size_t * outlen)61 CURLcode Curl_auth_create_oauth_bearer_message(struct Curl_easy *data,
62                                                const char *user,
63                                                const char *host,
64                                                const long port,
65                                                const char *bearer,
66                                                char **outptr, size_t *outlen)
67 {
68   CURLcode result = CURLE_OK;
69   char *oauth = NULL;
70 
71   /* Generate the message */
72   if(port == 0 || port == 80)
73     oauth = aprintf("n,a=%s,\1host=%s\1auth=Bearer %s\1\1", user, host,
74                     bearer);
75   else
76     oauth = aprintf("n,a=%s,\1host=%s\1port=%ld\1auth=Bearer %s\1\1", user,
77                     host, port, bearer);
78   if(!oauth)
79     return CURLE_OUT_OF_MEMORY;
80 
81   /* Base64 encode the reply */
82   result = Curl_base64_encode(data, oauth, strlen(oauth), outptr, outlen);
83 
84   free(oauth);
85 
86   return result;
87 }
88 
89 /*
90  * Curl_auth_create_xoauth_bearer_message()
91  *
92  * This is used to generate an already encoded XOAuth 2.0 message ready for
93  * sending to the recipient.
94  *
95  * Parameters:
96  *
97  * data[in]         - The session handle.
98  * user[in]         - The user name.
99  * bearer[in]       - The bearer token.
100  * outptr[in / out] - The address where a pointer to newly allocated memory
101  *                    holding the result will be stored upon completion.
102  * outlen[out]      - The length of the output message.
103  *
104  * Returns CURLE_OK on success.
105  */
Curl_auth_create_xoauth_bearer_message(struct Curl_easy * data,const char * user,const char * bearer,char ** outptr,size_t * outlen)106 CURLcode Curl_auth_create_xoauth_bearer_message(struct Curl_easy *data,
107                                                const char *user,
108                                                const char *bearer,
109                                                char **outptr, size_t *outlen)
110 {
111   CURLcode result = CURLE_OK;
112 
113   /* Generate the message */
114   char *xoauth = aprintf("user=%s\1auth=Bearer %s\1\1", user, bearer);
115   if(!xoauth)
116     return CURLE_OUT_OF_MEMORY;
117 
118   /* Base64 encode the reply */
119   result = Curl_base64_encode(data, xoauth, strlen(xoauth), outptr, outlen);
120 
121   free(xoauth);
122 
123   return result;
124 }
125 #endif /* disabled, no users */
126 
127