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1 #ifndef CURLINC_URLAPI_H
2 #define CURLINC_URLAPI_H
3 /***************************************************************************
4  *                                  _   _ ____  _
5  *  Project                     ___| | | |  _ \| |
6  *                             / __| | | | |_) | |
7  *                            | (__| |_| |  _ <| |___
8  *                             \___|\___/|_| \_\_____|
9  *
10  * Copyright (C) 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.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  * SPDX-License-Identifier: curl
24  *
25  ***************************************************************************/
26 
27 #include "curl.h"
28 
29 #ifdef  __cplusplus
30 extern "C" {
31 #endif
32 
33 /* the error codes for the URL API */
34 typedef enum {
35   CURLUE_OK,
36   CURLUE_BAD_HANDLE,          /* 1 */
37   CURLUE_BAD_PARTPOINTER,     /* 2 */
38   CURLUE_MALFORMED_INPUT,     /* 3 */
39   CURLUE_BAD_PORT_NUMBER,     /* 4 */
40   CURLUE_UNSUPPORTED_SCHEME,  /* 5 */
41   CURLUE_URLDECODE,           /* 6 */
42   CURLUE_OUT_OF_MEMORY,       /* 7 */
43   CURLUE_USER_NOT_ALLOWED,    /* 8 */
44   CURLUE_UNKNOWN_PART,        /* 9 */
45   CURLUE_NO_SCHEME,           /* 10 */
46   CURLUE_NO_USER,             /* 11 */
47   CURLUE_NO_PASSWORD,         /* 12 */
48   CURLUE_NO_OPTIONS,          /* 13 */
49   CURLUE_NO_HOST,             /* 14 */
50   CURLUE_NO_PORT,             /* 15 */
51   CURLUE_NO_QUERY,            /* 16 */
52   CURLUE_NO_FRAGMENT,         /* 17 */
53   CURLUE_NO_ZONEID,           /* 18 */
54   CURLUE_BAD_FILE_URL,        /* 19 */
55   CURLUE_BAD_FRAGMENT,        /* 20 */
56   CURLUE_BAD_HOSTNAME,        /* 21 */
57   CURLUE_BAD_IPV6,            /* 22 */
58   CURLUE_BAD_LOGIN,           /* 23 */
59   CURLUE_BAD_PASSWORD,        /* 24 */
60   CURLUE_BAD_PATH,            /* 25 */
61   CURLUE_BAD_QUERY,           /* 26 */
62   CURLUE_BAD_SCHEME,          /* 27 */
63   CURLUE_BAD_SLASHES,         /* 28 */
64   CURLUE_BAD_USER,            /* 29 */
65   CURLUE_LACKS_IDN,           /* 30 */
66   CURLUE_LAST
67 } CURLUcode;
68 
69 typedef enum {
70   CURLUPART_URL,
71   CURLUPART_SCHEME,
72   CURLUPART_USER,
73   CURLUPART_PASSWORD,
74   CURLUPART_OPTIONS,
75   CURLUPART_HOST,
76   CURLUPART_PORT,
77   CURLUPART_PATH,
78   CURLUPART_QUERY,
79   CURLUPART_FRAGMENT,
80   CURLUPART_ZONEID /* added in 7.65.0 */
81 } CURLUPart;
82 
83 #define CURLU_DEFAULT_PORT (1<<0)       /* return default port number */
84 #define CURLU_NO_DEFAULT_PORT (1<<1)    /* act as if no port number was set,
85                                            if the port number matches the
86                                            default for the scheme */
87 #define CURLU_DEFAULT_SCHEME (1<<2)     /* return default scheme if
88                                            missing */
89 #define CURLU_NON_SUPPORT_SCHEME (1<<3) /* allow non-supported scheme */
90 #define CURLU_PATH_AS_IS (1<<4)         /* leave dot sequences */
91 #define CURLU_DISALLOW_USER (1<<5)      /* no user+password allowed */
92 #define CURLU_URLDECODE (1<<6)          /* URL decode on get */
93 #define CURLU_URLENCODE (1<<7)          /* URL encode on set */
94 #define CURLU_APPENDQUERY (1<<8)        /* append a form style part */
95 #define CURLU_GUESS_SCHEME (1<<9)       /* legacy curl-style guessing */
96 #define CURLU_NO_AUTHORITY (1<<10)      /* Allow empty authority when the
97                                            scheme is unknown. */
98 #define CURLU_ALLOW_SPACE (1<<11)       /* Allow spaces in the URL */
99 #define CURLU_PUNYCODE (1<<12)          /* get the host name in punycode */
100 #define CURLU_PUNY2IDN (1<<13)          /* punycode => IDN conversion */
101 
102 typedef struct Curl_URL CURLU;
103 
104 /*
105  * curl_url() creates a new CURLU handle and returns a pointer to it.
106  * Must be freed with curl_url_cleanup().
107  */
108 CURL_EXTERN CURLU *curl_url(void);
109 
110 /*
111  * curl_url_cleanup() frees the CURLU handle and related resources used for
112  * the URL parsing. It will not free strings previously returned with the URL
113  * API.
114  */
115 CURL_EXTERN void curl_url_cleanup(CURLU *handle);
116 
117 /*
118  * curl_url_dup() duplicates a CURLU handle and returns a new copy. The new
119  * handle must also be freed with curl_url_cleanup().
120  */
121 CURL_EXTERN CURLU *curl_url_dup(const CURLU *in);
122 
123 /*
124  * curl_url_get() extracts a specific part of the URL from a CURLU
125  * handle. Returns error code. The returned pointer MUST be freed with
126  * curl_free() afterwards.
127  */
128 CURL_EXTERN CURLUcode curl_url_get(const CURLU *handle, CURLUPart what,
129                                    char **part, unsigned int flags);
130 
131 /*
132  * curl_url_set() sets a specific part of the URL in a CURLU handle. Returns
133  * error code. The passed in string will be copied. Passing a NULL instead of
134  * a part string, clears that part.
135  */
136 CURL_EXTERN CURLUcode curl_url_set(CURLU *handle, CURLUPart what,
137                                    const char *part, unsigned int flags);
138 
139 /*
140  * curl_url_strerror() turns a CURLUcode value into the equivalent human
141  * readable error string.  This is useful for printing meaningful error
142  * messages.
143  */
144 CURL_EXTERN const char *curl_url_strerror(CURLUcode);
145 
146 #ifdef __cplusplus
147 } /* end of extern "C" */
148 #endif
149 
150 #endif /* CURLINC_URLAPI_H */
151