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comparison mupdf-source/thirdparty/curl/lib/curl_sasl.h @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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1:1d09e1dec1d9 2:b50eed0cc0ef
1 #ifndef HEADER_CURL_SASL_H
2 #define HEADER_CURL_SASL_H
3 /***************************************************************************
4 * _ _ ____ _
5 * Project ___| | | | _ \| |
6 * / __| | | | |_) | |
7 * | (__| |_| | _ <| |___
8 * \___|\___/|_| \_\_____|
9 *
10 * Copyright (C) 2012 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
11 *
12 * This software is licensed as described in the file COPYING, which
13 * you should have received as part of this distribution. The terms
14 * are also available at https://curl.haxx.se/docs/copyright.html.
15 *
16 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
17 * copies of the Software, and permit persons to whom the Software is
18 * furnished to do so, under the terms of the COPYING file.
19 *
20 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
21 * KIND, either express or implied.
22 *
23 ***************************************************************************/
24
25 #include <curl/curl.h>
26
27 struct Curl_easy;
28 struct connectdata;
29
30 /* Authentication mechanism flags */
31 #define SASL_MECH_LOGIN (1 << 0)
32 #define SASL_MECH_PLAIN (1 << 1)
33 #define SASL_MECH_CRAM_MD5 (1 << 2)
34 #define SASL_MECH_DIGEST_MD5 (1 << 3)
35 #define SASL_MECH_GSSAPI (1 << 4)
36 #define SASL_MECH_EXTERNAL (1 << 5)
37 #define SASL_MECH_NTLM (1 << 6)
38 #define SASL_MECH_XOAUTH2 (1 << 7)
39 #define SASL_MECH_OAUTHBEARER (1 << 8)
40
41 /* Authentication mechanism values */
42 #define SASL_AUTH_NONE 0
43 #define SASL_AUTH_ANY ~0U
44 #define SASL_AUTH_DEFAULT (SASL_AUTH_ANY & ~SASL_MECH_EXTERNAL)
45
46 /* Authentication mechanism strings */
47 #define SASL_MECH_STRING_LOGIN "LOGIN"
48 #define SASL_MECH_STRING_PLAIN "PLAIN"
49 #define SASL_MECH_STRING_CRAM_MD5 "CRAM-MD5"
50 #define SASL_MECH_STRING_DIGEST_MD5 "DIGEST-MD5"
51 #define SASL_MECH_STRING_GSSAPI "GSSAPI"
52 #define SASL_MECH_STRING_EXTERNAL "EXTERNAL"
53 #define SASL_MECH_STRING_NTLM "NTLM"
54 #define SASL_MECH_STRING_XOAUTH2 "XOAUTH2"
55 #define SASL_MECH_STRING_OAUTHBEARER "OAUTHBEARER"
56
57 /* SASL machine states */
58 typedef enum {
59 SASL_STOP,
60 SASL_PLAIN,
61 SASL_LOGIN,
62 SASL_LOGIN_PASSWD,
63 SASL_EXTERNAL,
64 SASL_CRAMMD5,
65 SASL_DIGESTMD5,
66 SASL_DIGESTMD5_RESP,
67 SASL_NTLM,
68 SASL_NTLM_TYPE2MSG,
69 SASL_GSSAPI,
70 SASL_GSSAPI_TOKEN,
71 SASL_GSSAPI_NO_DATA,
72 SASL_OAUTH2,
73 SASL_OAUTH2_RESP,
74 SASL_CANCEL,
75 SASL_FINAL
76 } saslstate;
77
78 /* Progress indicator */
79 typedef enum {
80 SASL_IDLE,
81 SASL_INPROGRESS,
82 SASL_DONE
83 } saslprogress;
84
85 /* Protocol dependent SASL parameters */
86 struct SASLproto {
87 const char *service; /* The service name */
88 int contcode; /* Code to receive when continuation is expected */
89 int finalcode; /* Code to receive upon authentication success */
90 size_t maxirlen; /* Maximum initial response length */
91 CURLcode (*sendauth)(struct connectdata *conn,
92 const char *mech, const char *ir);
93 /* Send authentication command */
94 CURLcode (*sendcont)(struct connectdata *conn, const char *contauth);
95 /* Send authentication continuation */
96 void (*getmessage)(char *buffer, char **outptr);
97 /* Get SASL response message */
98 };
99
100 /* Per-connection parameters */
101 struct SASL {
102 const struct SASLproto *params; /* Protocol dependent parameters */
103 saslstate state; /* Current machine state */
104 unsigned int authmechs; /* Accepted authentication mechanisms */
105 unsigned int prefmech; /* Preferred authentication mechanism */
106 unsigned int authused; /* Auth mechanism used for the connection */
107 bool resetprefs; /* For URL auth option parsing. */
108 bool mutual_auth; /* Mutual authentication enabled (GSSAPI only) */
109 bool force_ir; /* Protocol always supports initial response */
110 };
111
112 /* This is used to test whether the line starts with the given mechanism */
113 #define sasl_mech_equal(line, wordlen, mech) \
114 (wordlen == (sizeof(mech) - 1) / sizeof(char) && \
115 !memcmp(line, mech, wordlen))
116
117 /* This is used to cleanup any libraries or curl modules used by the sasl
118 functions */
119 void Curl_sasl_cleanup(struct connectdata *conn, unsigned int authused);
120
121 /* Convert a mechanism name to a token */
122 unsigned int Curl_sasl_decode_mech(const char *ptr,
123 size_t maxlen, size_t *len);
124
125 /* Parse the URL login options */
126 CURLcode Curl_sasl_parse_url_auth_option(struct SASL *sasl,
127 const char *value, size_t len);
128
129 /* Initializes an SASL structure */
130 void Curl_sasl_init(struct SASL *sasl, const struct SASLproto *params);
131
132 /* Check if we have enough auth data and capabilities to authenticate */
133 bool Curl_sasl_can_authenticate(struct SASL *sasl, struct connectdata *conn);
134
135 /* Calculate the required login details for SASL authentication */
136 CURLcode Curl_sasl_start(struct SASL *sasl, struct connectdata *conn,
137 bool force_ir, saslprogress *progress);
138
139 /* Continue an SASL authentication */
140 CURLcode Curl_sasl_continue(struct SASL *sasl, struct connectdata *conn,
141 int code, saslprogress *progress);
142
143 #endif /* HEADER_CURL_SASL_H */