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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_MIME_H
2 #define HEADER_CURL_MIME_H
3 /***************************************************************************
4 * _ _ ____ _
5 * Project ___| | | | _ \| |
6 * / __| | | | |_) | |
7 * | (__| |_| | _ <| |___
8 * \___|\___/|_| \_\_____|
9 *
10 * Copyright (C) 1998 - 2019, 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_setup.h"
26
27 #define MIME_RAND_BOUNDARY_CHARS 16 /* Nb. of random boundary chars. */
28 #define MAX_ENCODED_LINE_LENGTH 76 /* Maximum encoded line length. */
29 #define ENCODING_BUFFER_SIZE 256 /* Encoding temp buffers size. */
30
31 /* Part flags. */
32 #define MIME_USERHEADERS_OWNER (1 << 0)
33 #define MIME_BODY_ONLY (1 << 1)
34
35 #define FILE_CONTENTTYPE_DEFAULT "application/octet-stream"
36 #define MULTIPART_CONTENTTYPE_DEFAULT "multipart/mixed"
37 #define DISPOSITION_DEFAULT "attachment"
38
39 /* Part source kinds. */
40 enum mimekind {
41 MIMEKIND_NONE = 0, /* Part not set. */
42 MIMEKIND_DATA, /* Allocated mime data. */
43 MIMEKIND_FILE, /* Data from file. */
44 MIMEKIND_CALLBACK, /* Data from `read' callback. */
45 MIMEKIND_MULTIPART, /* Data is a mime subpart. */
46 MIMEKIND_LAST
47 };
48
49 /* Readback state tokens. */
50 enum mimestate {
51 MIMESTATE_BEGIN, /* Readback has not yet started. */
52 MIMESTATE_CURLHEADERS, /* In curl-generated headers. */
53 MIMESTATE_USERHEADERS, /* In caller's supplied headers. */
54 MIMESTATE_EOH, /* End of headers. */
55 MIMESTATE_BODY, /* Placeholder. */
56 MIMESTATE_BOUNDARY1, /* In boundary prefix. */
57 MIMESTATE_BOUNDARY2, /* In boundary. */
58 MIMESTATE_CONTENT, /* In content. */
59 MIMESTATE_END, /* End of part reached. */
60 MIMESTATE_LAST
61 };
62
63 /* Mime headers strategies. */
64 enum mimestrategy {
65 MIMESTRATEGY_MAIL, /* Mime mail. */
66 MIMESTRATEGY_FORM, /* HTTP post form. */
67 MIMESTRATEGY_LAST
68 };
69
70 /* Content transfer encoder. */
71 typedef struct {
72 const char * name; /* Encoding name. */
73 size_t (*encodefunc)(char *buffer, size_t size, bool ateof,
74 curl_mimepart *part); /* Encoded read. */
75 curl_off_t (*sizefunc)(curl_mimepart *part); /* Encoded size. */
76 } mime_encoder;
77
78 /* Content transfer encoder state. */
79 typedef struct {
80 size_t pos; /* Position on output line. */
81 size_t bufbeg; /* Next data index in input buffer. */
82 size_t bufend; /* First unused byte index in input buffer. */
83 char buf[ENCODING_BUFFER_SIZE]; /* Input buffer. */
84 } mime_encoder_state;
85
86 /* Mime readback state. */
87 typedef struct {
88 enum mimestate state; /* Current state token. */
89 void *ptr; /* State-dependent pointer. */
90 size_t offset; /* State-dependent offset. */
91 } mime_state;
92
93 /* minimum buffer size for the boundary string */
94 #define MIME_BOUNDARY_LEN (24 + MIME_RAND_BOUNDARY_CHARS + 1)
95
96 /* A mime multipart. */
97 struct curl_mime_s {
98 struct Curl_easy *easy; /* The associated easy handle. */
99 curl_mimepart *parent; /* Parent part. */
100 curl_mimepart *firstpart; /* First part. */
101 curl_mimepart *lastpart; /* Last part. */
102 char boundary[MIME_BOUNDARY_LEN]; /* The part boundary. */
103 mime_state state; /* Current readback state. */
104 };
105
106 /* A mime part. */
107 struct curl_mimepart_s {
108 struct Curl_easy *easy; /* The associated easy handle. */
109 curl_mime *parent; /* Parent mime structure. */
110 curl_mimepart *nextpart; /* Forward linked list. */
111 enum mimekind kind; /* The part kind. */
112 char *data; /* Memory data or file name. */
113 curl_read_callback readfunc; /* Read function. */
114 curl_seek_callback seekfunc; /* Seek function. */
115 curl_free_callback freefunc; /* Argument free function. */
116 void *arg; /* Argument to callback functions. */
117 FILE *fp; /* File pointer. */
118 struct curl_slist *curlheaders; /* Part headers. */
119 struct curl_slist *userheaders; /* Part headers. */
120 char *mimetype; /* Part mime type. */
121 char *filename; /* Remote file name. */
122 char *name; /* Data name. */
123 curl_off_t datasize; /* Expected data size. */
124 unsigned int flags; /* Flags. */
125 mime_state state; /* Current readback state. */
126 const mime_encoder *encoder; /* Content data encoder. */
127 mime_encoder_state encstate; /* Data encoder state. */
128 };
129
130 #if (!defined(CURL_DISABLE_HTTP) && !defined(CURL_DISABLE_MIME)) || \
131 !defined(CURL_DISABLE_SMTP) || !defined(CURL_DISABLE_IMAP)
132
133 /* Prototypes. */
134 void Curl_mime_initpart(curl_mimepart *part, struct Curl_easy *easy);
135 void Curl_mime_cleanpart(curl_mimepart *part);
136 CURLcode Curl_mime_duppart(curl_mimepart *dst, const curl_mimepart *src);
137 CURLcode Curl_mime_set_subparts(curl_mimepart *part,
138 curl_mime *subparts, int take_ownership);
139 CURLcode Curl_mime_prepare_headers(curl_mimepart *part,
140 const char *contenttype,
141 const char *disposition,
142 enum mimestrategy strategy);
143 curl_off_t Curl_mime_size(curl_mimepart *part);
144 size_t Curl_mime_read(char *buffer, size_t size, size_t nitems,
145 void *instream);
146 CURLcode Curl_mime_rewind(curl_mimepart *part);
147 CURLcode Curl_mime_add_header(struct curl_slist **slp, const char *fmt, ...);
148 const char *Curl_mime_contenttype(const char *filename);
149
150 #else
151 /* if disabled */
152 #define Curl_mime_initpart(x,y)
153 #define Curl_mime_cleanpart(x)
154 #define Curl_mime_duppart(x,y) CURLE_OK /* Nothing to duplicate. Succeed */
155 #define Curl_mime_set_subparts(a,b,c) CURLE_NOT_BUILT_IN
156 #define Curl_mime_prepare_headers(a,b,c,d) CURLE_NOT_BUILT_IN
157 #define Curl_mime_size(x) (curl_off_t) -1
158 #define Curl_mime_read NULL
159 #define Curl_mime_rewind(x) ((void)x, CURLE_NOT_BUILT_IN)
160 #define Curl_mime_add_header(x,y,...) CURLE_NOT_BUILT_IN
161 #endif
162
163
164 #endif /* HEADER_CURL_MIME_H */