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#ifndef HEADER_CURL_MIME_H
#define HEADER_CURL_MIME_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#define MIME_RAND_BOUNDARY_CHARS 16 /* Nb. of random boundary chars. */
/* Part flags. */
#define MIME_USERHEADERS_OWNER (1 << 0)
#define MIME_BODY_ONLY (1 << 1)
/* Part source kinds. */
enum mimekind {
MIMEKIND_NONE = 0, /* Part not set. */
MIMEKIND_DATA, /* Allocated mime data. */
MIMEKIND_NAMEDFILE, /* Data from named file. */
MIMEKIND_FILE, /* Data from file pointer. */
MIMEKIND_CALLBACK, /* Data from `read' callback. */
MIMEKIND_MULTIPART, /* Data is a mime subpart. */
MIMEKIND_LAST
};
/* Readback state tokens. */
enum mimestate {
MIMESTATE_BEGIN, /* Readback has not yet started. */
MIMESTATE_CURLHEADERS, /* In curl-generated headers. */
MIMESTATE_USERHEADERS, /* In caller's supplied headers. */
MIMESTATE_EOH, /* End of headers. */
MIMESTATE_BODY, /* Placeholder. */
MIMESTATE_BOUNDARY1, /* In boundary prefix. */
MIMESTATE_BOUNDARY2, /* In boundary. */
MIMESTATE_CONTENT, /* In content. */
MIMESTATE_END, /* End of part reached. */
MIMESTATE_LAST
};
/* Mime headers strategies. */
enum mimestrategy {
MIMESTRATEGY_MAIL, /* Mime mail. */
MIMESTRATEGY_FORM, /* HTTP post form. */
MIMESTRATEGY_LAST
};
/* Mime readback state. */
struct mime_state {
enum mimestate state; /* Current state token. */
void * ptr; /* State-dependent pointer. */
size_t offset; /* State-dependent offset. */
};
/* A mime context. */
struct Curl_mime {
struct Curl_easy * easy; /* The associated easy handle. */
struct Curl_mimepart * parent; /* Parent part. */
struct Curl_mimepart * firstpart; /* First part. */
struct Curl_mimepart * lastpart; /* Last part. */
char * boundary; /* The part boundary. */
struct mime_state state; /* Current readback state. */
};
/* A mime part. */
struct Curl_mimepart {
struct Curl_easy * easy; /* The associated easy handle. */
struct Curl_mime * parent; /* Parent mime structure. */
struct Curl_mimepart * nextpart; /* Forward linked list. */
enum mimekind kind; /* The part kind. */
char * data; /* Memory data or file name. */
curl_read_callback readfunc; /* Read function. */
curl_seek_callback seekfunc; /* Seek function. */
curl_free_callback freefunc; /* Argument free function. */
void * arg; /* Argument to callback functions. */
FILE * namedfp; /* Named file pointer. */
struct curl_slist * curlheaders; /* Part headers. */
struct curl_slist * userheaders; /* Part headers. */
char * mimetype; /* Part mime type. */
char * filename; /* Remote file name. */
char * name; /* Data name. */
size_t namesize; /* Data name size. */
curl_off_t origin; /* Origin file offset. */
curl_off_t datasize; /* Expected data size. */
unsigned int flags; /* Flags. */
struct mime_state state; /* Current readback state. */
};
/* Prototypes. */
void Curl_mime_initpart(struct Curl_mimepart *part, struct Curl_easy *easy);
void Curl_mime_cleanpart(struct Curl_mimepart *part);
CURLcode Curl_mime_prepare_headers(struct Curl_mimepart *part,
const char *contenttype,
const char *disposition,
enum mimestrategy strategy);
curl_off_t Curl_mime_size(struct Curl_mimepart *part);
size_t Curl_mime_read(char *buffer, size_t size, size_t nitems,
void *instream);
CURLcode Curl_mime_rewind(struct Curl_mimepart *part);
CURLcode Curl_mime_add_header(struct curl_slist **slp, const char *fmt, ...);
CURLcode Curl_mime_file(curl_mimepart *part, FILE *fp, int closewhendone);
#endif /* HEADER_CURL_MIME_H */
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