[331] | 1 | /***************************************************************************
|
---|
| 2 | * _ _ ____ _
|
---|
| 3 | * Project ___| | | | _ \| |
|
---|
| 4 | * / __| | | | |_) | |
|
---|
| 5 | * | (__| |_| | _ <| |___
|
---|
| 6 | * \___|\___/|_| \_\_____|
|
---|
| 7 | *
|
---|
| 8 | * Copyright (C) 1998 - 2017, 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 | ***************************************************************************/
|
---|
| 22 |
|
---|
| 23 | #include "curl_setup.h"
|
---|
| 24 |
|
---|
| 25 | #include <curl/curl.h>
|
---|
| 26 |
|
---|
| 27 | #include "mime.h"
|
---|
| 28 | #include "non-ascii.h"
|
---|
| 29 | #include "urldata.h"
|
---|
| 30 | #include "sendf.h"
|
---|
| 31 |
|
---|
| 32 | #if !defined(CURL_DISABLE_HTTP) || !defined(CURL_DISABLE_SMTP) || \
|
---|
| 33 | !defined(CURL_DISABLE_IMAP)
|
---|
| 34 |
|
---|
| 35 | #if defined(HAVE_LIBGEN_H) && defined(HAVE_BASENAME)
|
---|
| 36 | #include <libgen.h>
|
---|
| 37 | #endif
|
---|
| 38 |
|
---|
| 39 | #include "rand.h"
|
---|
| 40 | #include "slist.h"
|
---|
| 41 | #include "strcase.h"
|
---|
| 42 | /* The last 3 #include files should be in this order */
|
---|
| 43 | #include "curl_printf.h"
|
---|
| 44 | #include "curl_memory.h"
|
---|
| 45 | #include "memdebug.h"
|
---|
| 46 |
|
---|
| 47 | #ifdef WIN32
|
---|
| 48 | # ifndef R_OK
|
---|
| 49 | # define R_OK 4
|
---|
| 50 | # endif
|
---|
| 51 | #endif
|
---|
| 52 |
|
---|
| 53 |
|
---|
| 54 | #define FILE_CONTENTTYPE_DEFAULT "application/octet-stream"
|
---|
| 55 | #define MULTIPART_CONTENTTYPE_DEFAULT "multipart/mixed"
|
---|
| 56 | #define DISPOSITION_DEFAULT "attachment"
|
---|
| 57 |
|
---|
| 58 | #define READ_ERROR ((size_t) -1)
|
---|
| 59 |
|
---|
| 60 | /* Encoders. */
|
---|
| 61 | static size_t encoder_nop_read(char *buffer, size_t size, bool ateof,
|
---|
| 62 | curl_mimepart *part);
|
---|
| 63 | static curl_off_t encoder_nop_size(curl_mimepart *part);
|
---|
| 64 | static size_t encoder_7bit_read(char *buffer, size_t size, bool ateof,
|
---|
| 65 | curl_mimepart *part);
|
---|
| 66 | static size_t encoder_base64_read(char *buffer, size_t size, bool ateof,
|
---|
| 67 | curl_mimepart *part);
|
---|
| 68 | static curl_off_t encoder_base64_size(curl_mimepart *part);
|
---|
| 69 | static size_t encoder_qp_read(char *buffer, size_t size, bool ateof,
|
---|
| 70 | curl_mimepart *part);
|
---|
| 71 | static curl_off_t encoder_qp_size(curl_mimepart *part);
|
---|
| 72 |
|
---|
| 73 | static const mime_encoder encoders[] = {
|
---|
| 74 | {"binary", encoder_nop_read, encoder_nop_size},
|
---|
| 75 | {"8bit", encoder_nop_read, encoder_nop_size},
|
---|
| 76 | {"7bit", encoder_7bit_read, encoder_nop_size},
|
---|
| 77 | {"base64", encoder_base64_read, encoder_base64_size},
|
---|
| 78 | {"quoted-printable", encoder_qp_read, encoder_qp_size},
|
---|
| 79 | {ZERO_NULL, ZERO_NULL, ZERO_NULL}
|
---|
| 80 | };
|
---|
| 81 |
|
---|
| 82 | /* Base64 encoding table */
|
---|
| 83 | static const char base64[] =
|
---|
| 84 | "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
|
---|
| 85 |
|
---|
| 86 | /* Quoted-printable character class table.
|
---|
| 87 | *
|
---|
| 88 | * We cannot rely on ctype functions since quoted-printable input data
|
---|
| 89 | * is assumed to be ascii-compatible, even on non-ascii platforms. */
|
---|
| 90 | #define QP_OK 1 /* Can be represented by itself. */
|
---|
| 91 | #define QP_SP 2 /* Space or tab. */
|
---|
| 92 | #define QP_CR 3 /* Carriage return. */
|
---|
| 93 | #define QP_LF 4 /* Line-feed. */
|
---|
| 94 | static const unsigned char qp_class[] = {
|
---|
| 95 | 0, 0, 0, 0, 0, 0, 0, 0, /* 00 - 07 */
|
---|
| 96 | 0, QP_SP, QP_LF, 0, 0, QP_CR, 0, 0, /* 08 - 0F */
|
---|
| 97 | 0, 0, 0, 0, 0, 0, 0, 0, /* 10 - 17 */
|
---|
| 98 | 0, 0, 0, 0, 0, 0, 0, 0, /* 18 - 1F */
|
---|
| 99 | QP_SP, QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, /* 20 - 27 */
|
---|
| 100 | QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, /* 28 - 2F */
|
---|
| 101 | QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, /* 30 - 37 */
|
---|
| 102 | QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, 0 , QP_OK, QP_OK, /* 38 - 3F */
|
---|
| 103 | QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, /* 40 - 47 */
|
---|
| 104 | QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, /* 48 - 4F */
|
---|
| 105 | QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, /* 50 - 57 */
|
---|
| 106 | QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, /* 58 - 5F */
|
---|
| 107 | QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, /* 60 - 67 */
|
---|
| 108 | QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, /* 68 - 6F */
|
---|
| 109 | QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, /* 70 - 77 */
|
---|
| 110 | QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, QP_OK, 0, /* 78 - 7F */
|
---|
| 111 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 80 - 8F */
|
---|
| 112 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 90 - 9F */
|
---|
| 113 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* A0 - AF */
|
---|
| 114 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* B0 - BF */
|
---|
| 115 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* C0 - CF */
|
---|
| 116 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* D0 - DF */
|
---|
| 117 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* E0 - EF */
|
---|
| 118 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 /* F0 - FF */
|
---|
| 119 | };
|
---|
| 120 |
|
---|
| 121 |
|
---|
| 122 | /* Binary --> hexadecimal ASCII table. */
|
---|
| 123 | static const char aschex[] =
|
---|
| 124 | "\x30\x31\x32\x33\x34\x35\x36\x37\x38\x39\x41\x42\x43\x44\x45\x46";
|
---|
| 125 |
|
---|
| 126 |
|
---|
| 127 |
|
---|
| 128 | #ifndef __VMS
|
---|
| 129 | #define filesize(name, stat_data) (stat_data.st_size)
|
---|
| 130 | #define fopen_read fopen
|
---|
| 131 |
|
---|
| 132 | #else
|
---|
| 133 |
|
---|
| 134 | #include <fabdef.h>
|
---|
| 135 | /*
|
---|
| 136 | * get_vms_file_size does what it takes to get the real size of the file
|
---|
| 137 | *
|
---|
| 138 | * For fixed files, find out the size of the EOF block and adjust.
|
---|
| 139 | *
|
---|
| 140 | * For all others, have to read the entire file in, discarding the contents.
|
---|
| 141 | * Most posted text files will be small, and binary files like zlib archives
|
---|
| 142 | * and CD/DVD images should be either a STREAM_LF format or a fixed format.
|
---|
| 143 | *
|
---|
| 144 | */
|
---|
| 145 | curl_off_t VmsRealFileSize(const char *name,
|
---|
| 146 | const struct_stat *stat_buf)
|
---|
| 147 | {
|
---|
| 148 | char buffer[8192];
|
---|
| 149 | curl_off_t count;
|
---|
| 150 | int ret_stat;
|
---|
| 151 | FILE * file;
|
---|
| 152 |
|
---|
| 153 | file = fopen(name, FOPEN_READTEXT); /* VMS */
|
---|
| 154 | if(file == NULL)
|
---|
| 155 | return 0;
|
---|
| 156 |
|
---|
| 157 | count = 0;
|
---|
| 158 | ret_stat = 1;
|
---|
| 159 | while(ret_stat > 0) {
|
---|
| 160 | ret_stat = fread(buffer, 1, sizeof(buffer), file);
|
---|
| 161 | if(ret_stat != 0)
|
---|
| 162 | count += ret_stat;
|
---|
| 163 | }
|
---|
| 164 | fclose(file);
|
---|
| 165 |
|
---|
| 166 | return count;
|
---|
| 167 | }
|
---|
| 168 |
|
---|
| 169 | /*
|
---|
| 170 | *
|
---|
| 171 | * VmsSpecialSize checks to see if the stat st_size can be trusted and
|
---|
| 172 | * if not to call a routine to get the correct size.
|
---|
| 173 | *
|
---|
| 174 | */
|
---|
| 175 | static curl_off_t VmsSpecialSize(const char *name,
|
---|
| 176 | const struct_stat *stat_buf)
|
---|
| 177 | {
|
---|
| 178 | switch(stat_buf->st_fab_rfm) {
|
---|
| 179 | case FAB$C_VAR:
|
---|
| 180 | case FAB$C_VFC:
|
---|
| 181 | return VmsRealFileSize(name, stat_buf);
|
---|
| 182 | break;
|
---|
| 183 | default:
|
---|
| 184 | return stat_buf->st_size;
|
---|
| 185 | }
|
---|
| 186 | }
|
---|
| 187 |
|
---|
| 188 | #define filesize(name, stat_data) VmsSpecialSize(name, &stat_data)
|
---|
| 189 |
|
---|
| 190 | /*
|
---|
| 191 | * vmsfopenread
|
---|
| 192 | *
|
---|
| 193 | * For upload to work as expected on VMS, different optional
|
---|
| 194 | * parameters must be added to the fopen command based on
|
---|
| 195 | * record format of the file.
|
---|
| 196 | *
|
---|
| 197 | */
|
---|
| 198 | static FILE * vmsfopenread(const char *file, const char *mode)
|
---|
| 199 | {
|
---|
| 200 | struct_stat statbuf;
|
---|
| 201 | int result;
|
---|
| 202 |
|
---|
| 203 | result = stat(file, &statbuf);
|
---|
| 204 |
|
---|
| 205 | switch(statbuf.st_fab_rfm) {
|
---|
| 206 | case FAB$C_VAR:
|
---|
| 207 | case FAB$C_VFC:
|
---|
| 208 | case FAB$C_STMCR:
|
---|
| 209 | return fopen(file, FOPEN_READTEXT); /* VMS */
|
---|
| 210 | break;
|
---|
| 211 | default:
|
---|
| 212 | return fopen(file, FOPEN_READTEXT, "rfm=stmlf", "ctx=stm");
|
---|
| 213 | }
|
---|
| 214 | }
|
---|
| 215 |
|
---|
| 216 | #define fopen_read vmsfopenread
|
---|
| 217 | #endif
|
---|
| 218 |
|
---|
| 219 |
|
---|
| 220 | #ifndef HAVE_BASENAME
|
---|
| 221 | /*
|
---|
| 222 | (Quote from The Open Group Base Specifications Issue 6 IEEE Std 1003.1, 2004
|
---|
| 223 | Edition)
|
---|
| 224 |
|
---|
| 225 | The basename() function shall take the pathname pointed to by path and
|
---|
| 226 | return a pointer to the final component of the pathname, deleting any
|
---|
| 227 | trailing '/' characters.
|
---|
| 228 |
|
---|
| 229 | If the string pointed to by path consists entirely of the '/' character,
|
---|
| 230 | basename() shall return a pointer to the string "/". If the string pointed
|
---|
| 231 | to by path is exactly "//", it is implementation-defined whether '/' or "//"
|
---|
| 232 | is returned.
|
---|
| 233 |
|
---|
| 234 | If path is a null pointer or points to an empty string, basename() shall
|
---|
| 235 | return a pointer to the string ".".
|
---|
| 236 |
|
---|
| 237 | The basename() function may modify the string pointed to by path, and may
|
---|
| 238 | return a pointer to static storage that may then be overwritten by a
|
---|
| 239 | subsequent call to basename().
|
---|
| 240 |
|
---|
| 241 | The basename() function need not be reentrant. A function that is not
|
---|
| 242 | required to be reentrant is not required to be thread-safe.
|
---|
| 243 |
|
---|
| 244 | */
|
---|
| 245 | static char *Curl_basename(char *path)
|
---|
| 246 | {
|
---|
| 247 | /* Ignore all the details above for now and make a quick and simple
|
---|
| 248 | implementaion here */
|
---|
| 249 | char *s1;
|
---|
| 250 | char *s2;
|
---|
| 251 |
|
---|
| 252 | s1 = strrchr(path, '/');
|
---|
| 253 | s2 = strrchr(path, '\\');
|
---|
| 254 |
|
---|
| 255 | if(s1 && s2) {
|
---|
| 256 | path = (s1 > s2? s1 : s2) + 1;
|
---|
| 257 | }
|
---|
| 258 | else if(s1)
|
---|
| 259 | path = s1 + 1;
|
---|
| 260 | else if(s2)
|
---|
| 261 | path = s2 + 1;
|
---|
| 262 |
|
---|
| 263 | return path;
|
---|
| 264 | }
|
---|
| 265 |
|
---|
| 266 | #define basename(x) Curl_basename((x))
|
---|
| 267 | #endif
|
---|
| 268 |
|
---|
| 269 |
|
---|
| 270 | /* Set readback state. */
|
---|
| 271 | static void mimesetstate(mime_state *state, enum mimestate tok, void *ptr)
|
---|
| 272 | {
|
---|
| 273 | state->state = tok;
|
---|
| 274 | state->ptr = ptr;
|
---|
| 275 | state->offset = 0;
|
---|
| 276 | }
|
---|
| 277 |
|
---|
| 278 |
|
---|
| 279 | /* Escape header string into allocated memory. */
|
---|
| 280 | static char *escape_string(const char *src)
|
---|
| 281 | {
|
---|
| 282 | size_t bytecount = 0;
|
---|
| 283 | size_t i;
|
---|
| 284 | char *dst;
|
---|
| 285 |
|
---|
| 286 | for(i = 0; src[i]; i++)
|
---|
| 287 | if(src[i] == '"' || src[i] == '\\')
|
---|
| 288 | bytecount++;
|
---|
| 289 |
|
---|
| 290 | bytecount += i;
|
---|
| 291 | dst = malloc(bytecount + 1);
|
---|
| 292 | if(!dst)
|
---|
| 293 | return NULL;
|
---|
| 294 |
|
---|
| 295 | for(i = 0; *src; src++) {
|
---|
| 296 | if(*src == '"' || *src == '\\')
|
---|
| 297 | dst[i++] = '\\';
|
---|
| 298 | dst[i++] = *src;
|
---|
| 299 | }
|
---|
| 300 |
|
---|
| 301 | dst[i] = '\0';
|
---|
| 302 | return dst;
|
---|
| 303 | }
|
---|
| 304 |
|
---|
| 305 | /* Check if header matches. */
|
---|
| 306 | static char *match_header(struct curl_slist *hdr, const char *lbl, size_t len)
|
---|
| 307 | {
|
---|
| 308 | char *value = NULL;
|
---|
| 309 |
|
---|
| 310 | if(strncasecompare(hdr->data, lbl, len) && hdr->data[len] == ':')
|
---|
| 311 | for(value = hdr->data + len + 1; *value == ' '; value++)
|
---|
| 312 | ;
|
---|
| 313 | return value;
|
---|
| 314 | }
|
---|
| 315 |
|
---|
| 316 | /* Get a header from an slist. */
|
---|
| 317 | static char *search_header(struct curl_slist *hdrlist, const char *hdr)
|
---|
| 318 | {
|
---|
| 319 | size_t len = strlen(hdr);
|
---|
| 320 | char *value = NULL;
|
---|
| 321 |
|
---|
| 322 | for(; !value && hdrlist; hdrlist = hdrlist->next)
|
---|
| 323 | value = match_header(hdrlist, hdr, len);
|
---|
| 324 |
|
---|
| 325 | return value;
|
---|
| 326 | }
|
---|
| 327 |
|
---|
| 328 | static char *strippath(const char *fullfile)
|
---|
| 329 | {
|
---|
| 330 | char *filename;
|
---|
| 331 | char *base;
|
---|
| 332 | filename = strdup(fullfile); /* duplicate since basename() may ruin the
|
---|
| 333 | buffer it works on */
|
---|
| 334 | if(!filename)
|
---|
| 335 | return NULL;
|
---|
| 336 | base = strdup(basename(filename));
|
---|
| 337 |
|
---|
| 338 | free(filename); /* free temporary buffer */
|
---|
| 339 |
|
---|
| 340 | return base; /* returns an allocated string or NULL ! */
|
---|
| 341 | }
|
---|
| 342 |
|
---|
| 343 | /* Initialize data encoder state. */
|
---|
| 344 | static void cleanup_encoder_state(mime_encoder_state *p)
|
---|
| 345 | {
|
---|
| 346 | p->pos = 0;
|
---|
| 347 | p->bufbeg = 0;
|
---|
| 348 | p->bufend = 0;
|
---|
| 349 | }
|
---|
| 350 |
|
---|
| 351 |
|
---|
| 352 | /* Dummy encoder. This is used for 8bit and binary content encodings. */
|
---|
| 353 | static size_t encoder_nop_read(char *buffer, size_t size, bool ateof,
|
---|
| 354 | curl_mimepart *part)
|
---|
| 355 | {
|
---|
| 356 | mime_encoder_state *st = &part->encstate;
|
---|
| 357 | size_t insize = st->bufend - st->bufbeg;
|
---|
| 358 |
|
---|
| 359 | (void) ateof;
|
---|
| 360 |
|
---|
| 361 | if(size > insize)
|
---|
| 362 | size = insize;
|
---|
| 363 | if(size)
|
---|
| 364 | memcpy(buffer, st->buf, size);
|
---|
| 365 | st->bufbeg += size;
|
---|
| 366 | return size;
|
---|
| 367 | }
|
---|
| 368 |
|
---|
| 369 | static curl_off_t encoder_nop_size(curl_mimepart *part)
|
---|
| 370 | {
|
---|
| 371 | return part->datasize;
|
---|
| 372 | }
|
---|
| 373 |
|
---|
| 374 |
|
---|
| 375 | /* 7bit encoder: the encoder is just a data validity check. */
|
---|
| 376 | static size_t encoder_7bit_read(char *buffer, size_t size, bool ateof,
|
---|
| 377 | curl_mimepart *part)
|
---|
| 378 | {
|
---|
| 379 | mime_encoder_state *st = &part->encstate;
|
---|
| 380 | size_t cursize = st->bufend - st->bufbeg;
|
---|
| 381 |
|
---|
| 382 | (void) ateof;
|
---|
| 383 |
|
---|
| 384 | if(size > cursize)
|
---|
| 385 | size = cursize;
|
---|
| 386 |
|
---|
| 387 | for(cursize = 0; cursize < size; cursize++) {
|
---|
| 388 | *buffer = st->buf[st->bufbeg];
|
---|
| 389 | if(*buffer++ & 0x80)
|
---|
| 390 | return cursize? cursize: READ_ERROR;
|
---|
| 391 | st->bufbeg++;
|
---|
| 392 | }
|
---|
| 393 |
|
---|
| 394 | return cursize;
|
---|
| 395 | }
|
---|
| 396 |
|
---|
| 397 |
|
---|
| 398 | /* Base64 content encoder. */
|
---|
| 399 | static size_t encoder_base64_read(char *buffer, size_t size, bool ateof,
|
---|
| 400 | curl_mimepart *part)
|
---|
| 401 | {
|
---|
| 402 | mime_encoder_state *st = &part->encstate;
|
---|
| 403 | size_t cursize = 0;
|
---|
| 404 | int i;
|
---|
| 405 | char *ptr = buffer;
|
---|
| 406 |
|
---|
| 407 | while(st->bufbeg < st->bufend) {
|
---|
| 408 | /* Line full ? */
|
---|
| 409 | if(st->pos > MAX_ENCODED_LINE_LENGTH - 4) {
|
---|
| 410 | /* Yes, we need 2 characters for CRLF. */
|
---|
| 411 | if(size < 2)
|
---|
| 412 | break;
|
---|
| 413 | *ptr++ = '\r';
|
---|
| 414 | *ptr++ = '\n';
|
---|
| 415 | st->pos = 0;
|
---|
| 416 | cursize += 2;
|
---|
| 417 | size -= 2;
|
---|
| 418 | }
|
---|
| 419 |
|
---|
| 420 | /* Be sure there is enough space and input data for a base64 group. */
|
---|
| 421 | if(size < 4 || st->bufend - st->bufbeg < 3)
|
---|
| 422 | break;
|
---|
| 423 |
|
---|
| 424 | /* Encode three bytes as four characters. */
|
---|
| 425 | i = st->buf[st->bufbeg++] & 0xFF;
|
---|
| 426 | i = (i << 8) | (st->buf[st->bufbeg++] & 0xFF);
|
---|
| 427 | i = (i << 8) | (st->buf[st->bufbeg++] & 0xFF);
|
---|
| 428 | *ptr++ = base64[(i >> 18) & 0x3F];
|
---|
| 429 | *ptr++ = base64[(i >> 12) & 0x3F];
|
---|
| 430 | *ptr++ = base64[(i >> 6) & 0x3F];
|
---|
| 431 | *ptr++ = base64[i & 0x3F];
|
---|
| 432 | cursize += 4;
|
---|
| 433 | st->pos += 4;
|
---|
| 434 | size -= 4;
|
---|
| 435 | }
|
---|
| 436 |
|
---|
| 437 | /* If at eof, we have to flush the buffered data. */
|
---|
| 438 | if(ateof && size >= 4) {
|
---|
| 439 | /* Buffered data size can only be 0, 1 or 2. */
|
---|
| 440 | ptr[2] = ptr[3] = '=';
|
---|
| 441 | i = 0;
|
---|
| 442 | switch(st->bufend - st->bufbeg) {
|
---|
| 443 | case 2:
|
---|
| 444 | i = (st->buf[st->bufbeg + 1] & 0xFF) << 8;
|
---|
| 445 | /* FALLTHROUGH */
|
---|
| 446 | case 1:
|
---|
| 447 | i |= (st->buf[st->bufbeg] & 0xFF) << 16;
|
---|
| 448 | ptr[0] = base64[(i >> 18) & 0x3F];
|
---|
| 449 | ptr[1] = base64[(i >> 12) & 0x3F];
|
---|
| 450 | if(++st->bufbeg != st->bufend) {
|
---|
| 451 | ptr[2] = base64[(i >> 6) & 0x3F];
|
---|
| 452 | st->bufbeg++;
|
---|
| 453 | }
|
---|
| 454 | cursize += 4;
|
---|
| 455 | st->pos += 4;
|
---|
| 456 | break;
|
---|
| 457 | }
|
---|
| 458 | }
|
---|
| 459 |
|
---|
| 460 | #ifdef CURL_DOES_CONVERSIONS
|
---|
| 461 | /* This is now textual data, Convert character codes. */
|
---|
| 462 | if(part->easy && cursize) {
|
---|
| 463 | CURLcode result = Curl_convert_to_network(part->easy, buffer, cursize);
|
---|
| 464 | if(result)
|
---|
| 465 | return READ_ERROR;
|
---|
| 466 | }
|
---|
| 467 | #endif
|
---|
| 468 |
|
---|
| 469 | return cursize;
|
---|
| 470 | }
|
---|
| 471 |
|
---|
| 472 | static curl_off_t encoder_base64_size(curl_mimepart *part)
|
---|
| 473 | {
|
---|
| 474 | curl_off_t size = part->datasize;
|
---|
| 475 |
|
---|
| 476 | if(size <= 0)
|
---|
| 477 | return size; /* Unknown size or no data. */
|
---|
| 478 |
|
---|
| 479 | /* Compute base64 character count. */
|
---|
| 480 | size = 4 * (1 + (size - 1) / 3);
|
---|
| 481 |
|
---|
| 482 | /* Effective character count must include CRLFs. */
|
---|
| 483 | return size + 2 * ((size - 1) / MAX_ENCODED_LINE_LENGTH);
|
---|
| 484 | }
|
---|
| 485 |
|
---|
| 486 |
|
---|
| 487 | /* Quoted-printable lookahead.
|
---|
| 488 | *
|
---|
| 489 | * Check if a CRLF or end of data is in input buffer at current position + n.
|
---|
| 490 | * Return -1 if more data needed, 1 if CRLF or end of data, else 0.
|
---|
| 491 | */
|
---|
| 492 | static int qp_lookahead_eol(mime_encoder_state *st, int ateof, size_t n)
|
---|
| 493 | {
|
---|
| 494 | n += st->bufbeg;
|
---|
| 495 | if(n >= st->bufend && ateof)
|
---|
| 496 | return 1;
|
---|
| 497 | if(n + 2 > st->bufend)
|
---|
| 498 | return ateof? 0: -1;
|
---|
| 499 | if(qp_class[st->buf[n] & 0xFF] == QP_CR &&
|
---|
| 500 | qp_class[st->buf[n + 1] & 0xFF] == QP_LF)
|
---|
| 501 | return 1;
|
---|
| 502 | return 0;
|
---|
| 503 | }
|
---|
| 504 |
|
---|
| 505 | /* Quoted-printable encoder. */
|
---|
| 506 | static size_t encoder_qp_read(char *buffer, size_t size, bool ateof,
|
---|
| 507 | curl_mimepart *part)
|
---|
| 508 | {
|
---|
| 509 | mime_encoder_state *st = &part->encstate;
|
---|
| 510 | char *ptr = buffer;
|
---|
| 511 | size_t cursize = 0;
|
---|
| 512 | int i;
|
---|
| 513 | size_t len;
|
---|
| 514 | size_t consumed;
|
---|
| 515 | int softlinebreak;
|
---|
| 516 | char buf[4];
|
---|
| 517 |
|
---|
| 518 | /* On all platforms, input is supposed to be ASCII compatible: for this
|
---|
| 519 | reason, we use hexadecimal ASCII codes in this function rather than
|
---|
| 520 | character constants that can be interpreted as non-ascii on some
|
---|
| 521 | platforms. Preserve ASCII encoding on output too. */
|
---|
| 522 | while(st->bufbeg < st->bufend) {
|
---|
| 523 | len = 1;
|
---|
| 524 | consumed = 1;
|
---|
| 525 | i = st->buf[st->bufbeg];
|
---|
| 526 | buf[0] = (char) i;
|
---|
| 527 | buf[1] = aschex[(i >> 4) & 0xF];
|
---|
| 528 | buf[2] = aschex[i & 0xF];
|
---|
| 529 |
|
---|
| 530 | switch(qp_class[st->buf[st->bufbeg] & 0xFF]) {
|
---|
| 531 | case QP_OK: /* Not a special character. */
|
---|
| 532 | break;
|
---|
| 533 | case QP_SP: /* Space or tab. */
|
---|
| 534 | /* Spacing must be escaped if followed by CRLF. */
|
---|
| 535 | switch(qp_lookahead_eol(st, ateof, 1)) {
|
---|
| 536 | case -1: /* More input data needed. */
|
---|
| 537 | return cursize;
|
---|
| 538 | case 0: /* No encoding needed. */
|
---|
| 539 | break;
|
---|
| 540 | default: /* CRLF after space or tab. */
|
---|
| 541 | buf[0] = '\x3D'; /* '=' */
|
---|
| 542 | len = 3;
|
---|
| 543 | break;
|
---|
| 544 | }
|
---|
| 545 | break;
|
---|
| 546 | case QP_CR: /* Carriage return. */
|
---|
| 547 | /* If followed by a line-feed, output the CRLF pair.
|
---|
| 548 | Else escape it. */
|
---|
| 549 | switch(qp_lookahead_eol(st, ateof, 0)) {
|
---|
| 550 | case -1: /* Need more data. */
|
---|
| 551 | return cursize;
|
---|
| 552 | case 1: /* CRLF found. */
|
---|
| 553 | buf[len++] = '\x0A'; /* Append '\n'. */
|
---|
| 554 | consumed = 2;
|
---|
| 555 | break;
|
---|
| 556 | default: /* Not followed by LF: escape. */
|
---|
| 557 | buf[0] = '\x3D'; /* '=' */
|
---|
| 558 | len = 3;
|
---|
| 559 | break;
|
---|
| 560 | }
|
---|
| 561 | break;
|
---|
| 562 | default: /* Character must be escaped. */
|
---|
| 563 | buf[0] = '\x3D'; /* '=' */
|
---|
| 564 | len = 3;
|
---|
| 565 | break;
|
---|
| 566 | }
|
---|
| 567 |
|
---|
| 568 | /* Be sure the encoded character fits within maximum line length. */
|
---|
| 569 | if(buf[len - 1] != '\x0A') { /* '\n' */
|
---|
| 570 | softlinebreak = st->pos + len > MAX_ENCODED_LINE_LENGTH;
|
---|
| 571 | if(!softlinebreak && st->pos + len == MAX_ENCODED_LINE_LENGTH) {
|
---|
| 572 | /* We may use the current line only if end of data or followed by
|
---|
| 573 | a CRLF. */
|
---|
| 574 | switch(qp_lookahead_eol(st, ateof, consumed)) {
|
---|
| 575 | case -1: /* Need more data. */
|
---|
| 576 | return cursize;
|
---|
| 577 | break;
|
---|
| 578 | case 0: /* Not followed by a CRLF. */
|
---|
| 579 | softlinebreak = 1;
|
---|
| 580 | break;
|
---|
| 581 | }
|
---|
| 582 | }
|
---|
| 583 | if(softlinebreak) {
|
---|
| 584 | strcpy(buf, "\x3D\x0D\x0A"); /* "=\r\n" */
|
---|
| 585 | len = 3;
|
---|
| 586 | consumed = 0;
|
---|
| 587 | }
|
---|
| 588 | }
|
---|
| 589 |
|
---|
| 590 | /* If the output buffer would overflow, do not store. */
|
---|
| 591 | if(len > size)
|
---|
| 592 | break;
|
---|
| 593 |
|
---|
| 594 | /* Append to output buffer. */
|
---|
| 595 | memcpy(ptr, buf, len);
|
---|
| 596 | cursize += len;
|
---|
| 597 | ptr += len;
|
---|
| 598 | size -= len;
|
---|
| 599 | st->pos += len;
|
---|
| 600 | if(buf[len - 1] == '\x0A') /* '\n' */
|
---|
| 601 | st->pos = 0;
|
---|
| 602 | st->bufbeg += consumed;
|
---|
| 603 | }
|
---|
| 604 |
|
---|
| 605 | return cursize;
|
---|
| 606 | }
|
---|
| 607 |
|
---|
| 608 | static curl_off_t encoder_qp_size(curl_mimepart *part)
|
---|
| 609 | {
|
---|
| 610 | /* Determining the size can only be done by reading the data: unless the
|
---|
| 611 | data size is 0, we return it as unknown (-1). */
|
---|
| 612 | return part->datasize? -1: 0;
|
---|
| 613 | }
|
---|
| 614 |
|
---|
| 615 |
|
---|
| 616 | /* In-memory data callbacks. */
|
---|
| 617 | /* Argument is a pointer to the mime part. */
|
---|
| 618 | static size_t mime_mem_read(char *buffer, size_t size, size_t nitems,
|
---|
| 619 | void *instream)
|
---|
| 620 | {
|
---|
| 621 | curl_mimepart *part = (curl_mimepart *) instream;
|
---|
| 622 | size_t sz = (size_t) part->datasize - part->state.offset;
|
---|
| 623 | (void) size; /* Always 1.*/
|
---|
| 624 |
|
---|
| 625 | if(sz > nitems)
|
---|
| 626 | sz = nitems;
|
---|
| 627 |
|
---|
| 628 | if(sz)
|
---|
| 629 | memcpy(buffer, (char *) &part->data[part->state.offset], sz);
|
---|
| 630 |
|
---|
| 631 | part->state.offset += sz;
|
---|
| 632 | return sz;
|
---|
| 633 | }
|
---|
| 634 |
|
---|
| 635 | static int mime_mem_seek(void *instream, curl_off_t offset, int whence)
|
---|
| 636 | {
|
---|
| 637 | curl_mimepart *part = (curl_mimepart *) instream;
|
---|
| 638 |
|
---|
| 639 | switch(whence) {
|
---|
| 640 | case SEEK_CUR:
|
---|
| 641 | offset += part->state.offset;
|
---|
| 642 | break;
|
---|
| 643 | case SEEK_END:
|
---|
| 644 | offset += part->datasize;
|
---|
| 645 | break;
|
---|
| 646 | }
|
---|
| 647 |
|
---|
| 648 | if(offset < 0 || offset > part->datasize)
|
---|
| 649 | return CURL_SEEKFUNC_FAIL;
|
---|
| 650 |
|
---|
| 651 | part->state.offset = (size_t) offset;
|
---|
| 652 | return CURL_SEEKFUNC_OK;
|
---|
| 653 | }
|
---|
| 654 |
|
---|
| 655 | static void mime_mem_free(void *ptr)
|
---|
| 656 | {
|
---|
| 657 | Curl_safefree(((curl_mimepart *) ptr)->data);
|
---|
| 658 | }
|
---|
| 659 |
|
---|
| 660 |
|
---|
| 661 | /* Named file callbacks. */
|
---|
| 662 | /* Argument is a pointer to the mime part. */
|
---|
| 663 | static int mime_open_file(curl_mimepart * part)
|
---|
| 664 | {
|
---|
| 665 | /* Open a MIMEKIND_FILE part. */
|
---|
| 666 |
|
---|
| 667 | if(part->fp)
|
---|
| 668 | return 0;
|
---|
| 669 | part->fp = fopen_read(part->data, "rb");
|
---|
| 670 | return part->fp? 0: -1;
|
---|
| 671 | }
|
---|
| 672 |
|
---|
| 673 | static size_t mime_file_read(char *buffer, size_t size, size_t nitems,
|
---|
| 674 | void *instream)
|
---|
| 675 | {
|
---|
| 676 | curl_mimepart *part = (curl_mimepart *) instream;
|
---|
| 677 |
|
---|
| 678 | if(mime_open_file(part))
|
---|
| 679 | return READ_ERROR;
|
---|
| 680 |
|
---|
| 681 | return fread(buffer, size, nitems, part->fp);
|
---|
| 682 | }
|
---|
| 683 |
|
---|
| 684 | static int mime_file_seek(void *instream, curl_off_t offset, int whence)
|
---|
| 685 | {
|
---|
| 686 | curl_mimepart *part = (curl_mimepart *) instream;
|
---|
| 687 |
|
---|
| 688 | if(whence == SEEK_SET && !offset && !part->fp)
|
---|
| 689 | return CURL_SEEKFUNC_OK; /* Not open: implicitly already at BOF. */
|
---|
| 690 |
|
---|
| 691 | if(mime_open_file(part))
|
---|
| 692 | return CURL_SEEKFUNC_FAIL;
|
---|
| 693 |
|
---|
| 694 | return fseek(part->fp, (long) offset, whence)?
|
---|
| 695 | CURL_SEEKFUNC_CANTSEEK: CURL_SEEKFUNC_OK;
|
---|
| 696 | }
|
---|
| 697 |
|
---|
| 698 | static void mime_file_free(void *ptr)
|
---|
| 699 | {
|
---|
| 700 | curl_mimepart *part = (curl_mimepart *) ptr;
|
---|
| 701 |
|
---|
| 702 | if(part->fp) {
|
---|
| 703 | fclose(part->fp);
|
---|
| 704 | part->fp = NULL;
|
---|
| 705 | }
|
---|
| 706 | Curl_safefree(part->data);
|
---|
| 707 | part->data = NULL;
|
---|
| 708 | }
|
---|
| 709 |
|
---|
| 710 |
|
---|
| 711 | /* Subparts callbacks. */
|
---|
| 712 | /* Argument is a pointer to the mime structure. */
|
---|
| 713 |
|
---|
| 714 | /* Readback a byte string segment. */
|
---|
| 715 | static size_t readback_bytes(mime_state *state,
|
---|
| 716 | char *buffer, size_t bufsize,
|
---|
| 717 | const char *bytes, size_t numbytes,
|
---|
| 718 | const char *trail)
|
---|
| 719 | {
|
---|
| 720 | size_t sz;
|
---|
| 721 |
|
---|
| 722 | if(numbytes > state->offset) {
|
---|
| 723 | sz = numbytes - state->offset;
|
---|
| 724 | bytes += state->offset;
|
---|
| 725 | }
|
---|
| 726 | else {
|
---|
| 727 | size_t tsz = strlen(trail);
|
---|
| 728 |
|
---|
| 729 | sz = state->offset - numbytes;
|
---|
| 730 | if(sz >= tsz)
|
---|
| 731 | return 0;
|
---|
| 732 | bytes = trail + sz;
|
---|
| 733 | sz = tsz - sz;
|
---|
| 734 | }
|
---|
| 735 |
|
---|
| 736 | if(sz > bufsize)
|
---|
| 737 | sz = bufsize;
|
---|
| 738 |
|
---|
| 739 | memcpy(buffer, bytes, sz);
|
---|
| 740 | state->offset += sz;
|
---|
| 741 | return sz;
|
---|
| 742 | }
|
---|
| 743 |
|
---|
| 744 | /* Read a non-encoded part content. */
|
---|
| 745 | static size_t read_part_content(curl_mimepart *part,
|
---|
| 746 | char *buffer, size_t bufsize)
|
---|
| 747 | {
|
---|
| 748 | size_t sz = 0;
|
---|
| 749 |
|
---|
| 750 | if(part->readfunc)
|
---|
| 751 | sz = part->readfunc(buffer, 1, bufsize, part->arg);
|
---|
| 752 | return sz;
|
---|
| 753 | }
|
---|
| 754 |
|
---|
| 755 | /* Read and encode part content. */
|
---|
| 756 | static size_t read_encoded_part_content(curl_mimepart *part,
|
---|
| 757 | char *buffer, size_t bufsize)
|
---|
| 758 | {
|
---|
| 759 | mime_encoder_state *st = &part->encstate;
|
---|
| 760 | size_t cursize = 0;
|
---|
| 761 | size_t sz;
|
---|
| 762 | bool ateof = FALSE;
|
---|
| 763 |
|
---|
| 764 | while(bufsize) {
|
---|
| 765 | if(st->bufbeg < st->bufend || ateof) {
|
---|
| 766 | /* Encode buffered data. */
|
---|
| 767 | sz = part->encoder->encodefunc(buffer, bufsize, ateof, part);
|
---|
| 768 | switch(sz) {
|
---|
| 769 | case 0:
|
---|
| 770 | if(ateof)
|
---|
| 771 | return cursize;
|
---|
| 772 | break;
|
---|
| 773 | case CURL_READFUNC_ABORT:
|
---|
| 774 | case CURL_READFUNC_PAUSE:
|
---|
| 775 | case READ_ERROR:
|
---|
| 776 | return cursize? cursize: sz;
|
---|
| 777 | default:
|
---|
| 778 | cursize += sz;
|
---|
| 779 | buffer += sz;
|
---|
| 780 | bufsize -= sz;
|
---|
| 781 | continue;
|
---|
| 782 | }
|
---|
| 783 | }
|
---|
| 784 |
|
---|
| 785 | /* We need more data in input buffer. */
|
---|
| 786 | if(st->bufbeg) {
|
---|
| 787 | size_t len = st->bufend - st->bufbeg;
|
---|
| 788 |
|
---|
| 789 | if(len)
|
---|
| 790 | memmove(st->buf, st->buf + st->bufbeg, len);
|
---|
| 791 | st->bufbeg = 0;
|
---|
| 792 | st->bufend = len;
|
---|
| 793 | }
|
---|
| 794 | if(st->bufend >= sizeof st->buf)
|
---|
| 795 | return cursize? cursize: READ_ERROR; /* Buffer full. */
|
---|
| 796 | sz = read_part_content(part, st->buf + st->bufend,
|
---|
| 797 | sizeof st->buf - st->bufend);
|
---|
| 798 | switch(sz) {
|
---|
| 799 | case 0:
|
---|
| 800 | ateof = TRUE;
|
---|
| 801 | break;
|
---|
| 802 | case CURL_READFUNC_ABORT:
|
---|
| 803 | case CURL_READFUNC_PAUSE:
|
---|
| 804 | case READ_ERROR:
|
---|
| 805 | return cursize? cursize: sz;
|
---|
| 806 | default:
|
---|
| 807 | st->bufend += sz;
|
---|
| 808 | break;
|
---|
| 809 | }
|
---|
| 810 | }
|
---|
| 811 |
|
---|
| 812 | return cursize;
|
---|
| 813 | }
|
---|
| 814 |
|
---|
| 815 | /* Readback a mime part. */
|
---|
| 816 | static size_t readback_part(curl_mimepart *part,
|
---|
| 817 | char *buffer, size_t bufsize)
|
---|
| 818 | {
|
---|
| 819 | size_t cursize = 0;
|
---|
| 820 | size_t sz;
|
---|
| 821 | struct curl_slist *hdr;
|
---|
| 822 | #ifdef CURL_DOES_CONVERSIONS
|
---|
| 823 | char *convbuf = buffer;
|
---|
| 824 | #endif
|
---|
| 825 |
|
---|
| 826 | /* Readback from part. */
|
---|
| 827 |
|
---|
| 828 | while(bufsize) {
|
---|
| 829 | sz = 0;
|
---|
| 830 | hdr = (struct curl_slist *) part->state.ptr;
|
---|
| 831 | switch(part->state.state) {
|
---|
| 832 | case MIMESTATE_BEGIN:
|
---|
| 833 | mimesetstate(&part->state, part->flags & MIME_BODY_ONLY? MIMESTATE_BODY:
|
---|
| 834 | MIMESTATE_CURLHEADERS, part->curlheaders);
|
---|
| 835 | break;
|
---|
| 836 | case MIMESTATE_USERHEADERS:
|
---|
| 837 | if(!hdr) {
|
---|
| 838 | mimesetstate(&part->state, MIMESTATE_EOH, NULL);
|
---|
| 839 | break;
|
---|
| 840 | }
|
---|
| 841 | if(match_header(hdr, "Content-Type", 12)) {
|
---|
| 842 | mimesetstate(&part->state, MIMESTATE_USERHEADERS, hdr->next);
|
---|
| 843 | break;
|
---|
| 844 | }
|
---|
| 845 | /* FALLTHROUGH */
|
---|
| 846 | case MIMESTATE_CURLHEADERS:
|
---|
| 847 | if(!hdr)
|
---|
| 848 | mimesetstate(&part->state, MIMESTATE_USERHEADERS, part->userheaders);
|
---|
| 849 | else {
|
---|
| 850 | sz = readback_bytes(&part->state, buffer, bufsize,
|
---|
| 851 | hdr->data, strlen(hdr->data), "\r\n");
|
---|
| 852 | if(!sz)
|
---|
| 853 | mimesetstate(&part->state, part->state.state, hdr->next);
|
---|
| 854 | }
|
---|
| 855 | break;
|
---|
| 856 | case MIMESTATE_EOH:
|
---|
| 857 | sz = readback_bytes(&part->state, buffer, bufsize, "\r\n", 2, "");
|
---|
| 858 | if(!sz)
|
---|
| 859 | mimesetstate(&part->state, MIMESTATE_BODY, NULL);
|
---|
| 860 | break;
|
---|
| 861 | case MIMESTATE_BODY:
|
---|
| 862 | #ifdef CURL_DOES_CONVERSIONS
|
---|
| 863 | if(part->easy && convbuf < buffer) {
|
---|
| 864 | CURLcode result = Curl_convert_to_network(part->easy, convbuf,
|
---|
| 865 | buffer - convbuf);
|
---|
| 866 | if(result)
|
---|
| 867 | return READ_ERROR;
|
---|
| 868 | convbuf = buffer;
|
---|
| 869 | }
|
---|
| 870 | #endif
|
---|
| 871 | cleanup_encoder_state(&part->encstate);
|
---|
| 872 | mimesetstate(&part->state, MIMESTATE_CONTENT, NULL);
|
---|
| 873 | break;
|
---|
| 874 | case MIMESTATE_CONTENT:
|
---|
| 875 | if(part->encoder)
|
---|
| 876 | sz = read_encoded_part_content(part, buffer, bufsize);
|
---|
| 877 | else
|
---|
| 878 | sz = read_part_content(part, buffer, bufsize);
|
---|
| 879 | switch(sz) {
|
---|
| 880 | case 0:
|
---|
| 881 | mimesetstate(&part->state, MIMESTATE_END, NULL);
|
---|
| 882 | /* Try sparing open file descriptors. */
|
---|
| 883 | if(part->kind == MIMEKIND_FILE && part->fp) {
|
---|
| 884 | fclose(part->fp);
|
---|
| 885 | part->fp = NULL;
|
---|
| 886 | }
|
---|
| 887 | /* FALLTHROUGH */
|
---|
| 888 | case CURL_READFUNC_ABORT:
|
---|
| 889 | case CURL_READFUNC_PAUSE:
|
---|
| 890 | case READ_ERROR:
|
---|
| 891 | return cursize? cursize: sz;
|
---|
| 892 | }
|
---|
| 893 | break;
|
---|
| 894 | case MIMESTATE_END:
|
---|
| 895 | return cursize;
|
---|
| 896 | default:
|
---|
| 897 | break; /* Other values not in part state. */
|
---|
| 898 | }
|
---|
| 899 |
|
---|
| 900 | /* Bump buffer and counters according to read size. */
|
---|
| 901 | cursize += sz;
|
---|
| 902 | buffer += sz;
|
---|
| 903 | bufsize -= sz;
|
---|
| 904 | }
|
---|
| 905 |
|
---|
| 906 | #ifdef CURL_DOES_CONVERSIONS
|
---|
| 907 | if(part->easy && convbuf < buffer &&
|
---|
| 908 | part->state.state < MIMESTATE_BODY) {
|
---|
| 909 | CURLcode result = Curl_convert_to_network(part->easy, convbuf,
|
---|
| 910 | buffer - convbuf);
|
---|
| 911 | if(result)
|
---|
| 912 | return READ_ERROR;
|
---|
| 913 | }
|
---|
| 914 | #endif
|
---|
| 915 |
|
---|
| 916 | return cursize;
|
---|
| 917 | }
|
---|
| 918 |
|
---|
| 919 | /* Readback from mime. */
|
---|
| 920 | static size_t mime_subparts_read(char *buffer, size_t size, size_t nitems,
|
---|
| 921 | void *instream)
|
---|
| 922 | {
|
---|
| 923 | curl_mime *mime = (curl_mime *) instream;
|
---|
| 924 | size_t cursize = 0;
|
---|
| 925 | size_t sz;
|
---|
| 926 | curl_mimepart *part;
|
---|
| 927 | #ifdef CURL_DOES_CONVERSIONS
|
---|
| 928 | char *convbuf = buffer;
|
---|
| 929 | #endif
|
---|
| 930 |
|
---|
| 931 | (void) size; /* Always 1. */
|
---|
| 932 |
|
---|
| 933 | while(nitems) {
|
---|
| 934 | sz = 0;
|
---|
| 935 | part = mime->state.ptr;
|
---|
| 936 | switch(mime->state.state) {
|
---|
| 937 | case MIMESTATE_BEGIN:
|
---|
| 938 | case MIMESTATE_BODY:
|
---|
| 939 | #ifdef CURL_DOES_CONVERSIONS
|
---|
| 940 | convbuf = buffer;
|
---|
| 941 | #endif
|
---|
| 942 | mimesetstate(&mime->state, MIMESTATE_BOUNDARY1, mime->firstpart);
|
---|
| 943 | /* The first boundary always follows the header termination empty line,
|
---|
| 944 | so is always preceded by a CRLK. We can then spare 2 characters
|
---|
| 945 | by skipping the leading CRLF in boundary. */
|
---|
| 946 | mime->state.offset += 2;
|
---|
| 947 | break;
|
---|
| 948 | case MIMESTATE_BOUNDARY1:
|
---|
| 949 | sz = readback_bytes(&mime->state, buffer, nitems, "\r\n--", 4, "");
|
---|
| 950 | if(!sz)
|
---|
| 951 | mimesetstate(&mime->state, MIMESTATE_BOUNDARY2, part);
|
---|
| 952 | break;
|
---|
| 953 | case MIMESTATE_BOUNDARY2:
|
---|
| 954 | sz = readback_bytes(&mime->state, buffer, nitems, mime->boundary,
|
---|
| 955 | strlen(mime->boundary), part? "\r\n": "--\r\n");
|
---|
| 956 | if(!sz) {
|
---|
| 957 | #ifdef CURL_DOES_CONVERSIONS
|
---|
| 958 | if(mime->easy && convbuf < buffer) {
|
---|
| 959 | CURLcode result = Curl_convert_to_network(mime->easy, convbuf,
|
---|
| 960 | buffer - convbuf);
|
---|
| 961 | if(result)
|
---|
| 962 | return READ_ERROR;
|
---|
| 963 | convbuf = buffer;
|
---|
| 964 | }
|
---|
| 965 | #endif
|
---|
| 966 | mimesetstate(&mime->state, MIMESTATE_CONTENT, part);
|
---|
| 967 | }
|
---|
| 968 | break;
|
---|
| 969 | case MIMESTATE_CONTENT:
|
---|
| 970 | if(!part) {
|
---|
| 971 | mimesetstate(&mime->state, MIMESTATE_END, NULL);
|
---|
| 972 | break;
|
---|
| 973 | }
|
---|
| 974 | sz = readback_part(part, buffer, nitems);
|
---|
| 975 | switch(sz) {
|
---|
| 976 | case CURL_READFUNC_ABORT:
|
---|
| 977 | case CURL_READFUNC_PAUSE:
|
---|
| 978 | case READ_ERROR:
|
---|
| 979 | return cursize? cursize: sz;
|
---|
| 980 | case 0:
|
---|
| 981 | #ifdef CURL_DOES_CONVERSIONS
|
---|
| 982 | convbuf = buffer;
|
---|
| 983 | #endif
|
---|
| 984 | mimesetstate(&mime->state, MIMESTATE_BOUNDARY1, part->nextpart);
|
---|
| 985 | break;
|
---|
| 986 | }
|
---|
| 987 | break;
|
---|
| 988 | case MIMESTATE_END:
|
---|
| 989 | return cursize;
|
---|
| 990 | default:
|
---|
| 991 | break; /* other values not used in mime state. */
|
---|
| 992 | }
|
---|
| 993 |
|
---|
| 994 | /* Bump buffer and counters according to read size. */
|
---|
| 995 | cursize += sz;
|
---|
| 996 | buffer += sz;
|
---|
| 997 | nitems -= sz;
|
---|
| 998 | }
|
---|
| 999 |
|
---|
| 1000 | #ifdef CURL_DOES_CONVERSIONS
|
---|
| 1001 | if(mime->easy && convbuf < buffer &&
|
---|
| 1002 | mime->state.state <= MIMESTATE_CONTENT) {
|
---|
| 1003 | CURLcode result = Curl_convert_to_network(mime->easy, convbuf,
|
---|
| 1004 | buffer - convbuf);
|
---|
| 1005 | if(result)
|
---|
| 1006 | return READ_ERROR;
|
---|
| 1007 | }
|
---|
| 1008 | #endif
|
---|
| 1009 |
|
---|
| 1010 | return cursize;
|
---|
| 1011 | }
|
---|
| 1012 |
|
---|
| 1013 | static int mime_part_rewind(curl_mimepart *part)
|
---|
| 1014 | {
|
---|
| 1015 | int res = CURL_SEEKFUNC_OK;
|
---|
| 1016 | enum mimestate targetstate = MIMESTATE_BEGIN;
|
---|
| 1017 |
|
---|
| 1018 | if(part->flags & MIME_BODY_ONLY)
|
---|
| 1019 | targetstate = MIMESTATE_BODY;
|
---|
| 1020 | cleanup_encoder_state(&part->encstate);
|
---|
| 1021 | if(part->state.state > targetstate) {
|
---|
| 1022 | res = CURL_SEEKFUNC_CANTSEEK;
|
---|
| 1023 | if(part->seekfunc) {
|
---|
| 1024 | res = part->seekfunc(part->arg, (curl_off_t) 0, SEEK_SET);
|
---|
| 1025 | switch(res) {
|
---|
| 1026 | case CURL_SEEKFUNC_OK:
|
---|
| 1027 | case CURL_SEEKFUNC_FAIL:
|
---|
| 1028 | case CURL_SEEKFUNC_CANTSEEK:
|
---|
| 1029 | break;
|
---|
| 1030 | case -1: /* For fseek() error. */
|
---|
| 1031 | res = CURL_SEEKFUNC_CANTSEEK;
|
---|
| 1032 | break;
|
---|
| 1033 | default:
|
---|
| 1034 | res = CURL_SEEKFUNC_FAIL;
|
---|
| 1035 | break;
|
---|
| 1036 | }
|
---|
| 1037 | }
|
---|
| 1038 | }
|
---|
| 1039 |
|
---|
| 1040 | if(res == CURL_SEEKFUNC_OK)
|
---|
| 1041 | mimesetstate(&part->state, targetstate, NULL);
|
---|
| 1042 |
|
---|
| 1043 | return res;
|
---|
| 1044 | }
|
---|
| 1045 |
|
---|
| 1046 | static int mime_subparts_seek(void *instream, curl_off_t offset, int whence)
|
---|
| 1047 | {
|
---|
| 1048 | curl_mime *mime = (curl_mime *) instream;
|
---|
| 1049 | curl_mimepart *part;
|
---|
| 1050 | int result = CURL_SEEKFUNC_OK;
|
---|
| 1051 | int res;
|
---|
| 1052 |
|
---|
| 1053 | if(whence != SEEK_SET || offset)
|
---|
| 1054 | return CURL_SEEKFUNC_CANTSEEK; /* Only support full rewind. */
|
---|
| 1055 |
|
---|
| 1056 | if(mime->state.state == MIMESTATE_BEGIN)
|
---|
| 1057 | return CURL_SEEKFUNC_OK; /* Already rewound. */
|
---|
| 1058 |
|
---|
| 1059 | for(part = mime->firstpart; part; part = part->nextpart) {
|
---|
| 1060 | res = mime_part_rewind(part);
|
---|
| 1061 | if(res != CURL_SEEKFUNC_OK)
|
---|
| 1062 | result = res;
|
---|
| 1063 | }
|
---|
| 1064 |
|
---|
| 1065 | if(result == CURL_SEEKFUNC_OK)
|
---|
| 1066 | mimesetstate(&mime->state, MIMESTATE_BEGIN, NULL);
|
---|
| 1067 |
|
---|
| 1068 | return result;
|
---|
| 1069 | }
|
---|
| 1070 |
|
---|
| 1071 | /* Release part content. */
|
---|
| 1072 | static void cleanup_part_content(curl_mimepart *part)
|
---|
| 1073 | {
|
---|
| 1074 | if(part->freefunc)
|
---|
| 1075 | part->freefunc(part->arg);
|
---|
| 1076 |
|
---|
| 1077 | part->readfunc = NULL;
|
---|
| 1078 | part->seekfunc = NULL;
|
---|
| 1079 | part->freefunc = NULL;
|
---|
| 1080 | part->arg = (void *) part; /* Defaults to part itself. */
|
---|
| 1081 | part->data = NULL;
|
---|
| 1082 | part->fp = NULL;
|
---|
| 1083 | part->datasize = (curl_off_t) 0; /* No size yet. */
|
---|
| 1084 | cleanup_encoder_state(&part->encstate);
|
---|
| 1085 | part->kind = MIMEKIND_NONE;
|
---|
| 1086 | }
|
---|
| 1087 |
|
---|
| 1088 | static void mime_subparts_free(void *ptr)
|
---|
| 1089 | {
|
---|
| 1090 | curl_mime *mime = (curl_mime *) ptr;
|
---|
| 1091 |
|
---|
| 1092 | if(mime && mime->parent) {
|
---|
| 1093 | mime->parent->freefunc = NULL; /* Be sure we won't be called again. */
|
---|
| 1094 | cleanup_part_content(mime->parent); /* Avoid dangling pointer in part. */
|
---|
| 1095 | }
|
---|
| 1096 | curl_mime_free(mime);
|
---|
| 1097 | }
|
---|
| 1098 |
|
---|
| 1099 | /* Do not free subparts: unbind them. This is used for the top level only. */
|
---|
| 1100 | static void mime_subparts_unbind(void *ptr)
|
---|
| 1101 | {
|
---|
| 1102 | curl_mime *mime = (curl_mime *) ptr;
|
---|
| 1103 |
|
---|
| 1104 | if(mime && mime->parent) {
|
---|
| 1105 | mime->parent->freefunc = NULL; /* Be sure we won't be called again. */
|
---|
| 1106 | cleanup_part_content(mime->parent); /* Avoid dangling pointer in part. */
|
---|
| 1107 | mime->parent = NULL;
|
---|
| 1108 | }
|
---|
| 1109 | }
|
---|
| 1110 |
|
---|
| 1111 |
|
---|
| 1112 | void Curl_mime_cleanpart(curl_mimepart *part)
|
---|
| 1113 | {
|
---|
| 1114 | cleanup_part_content(part);
|
---|
| 1115 | curl_slist_free_all(part->curlheaders);
|
---|
| 1116 | if(part->flags & MIME_USERHEADERS_OWNER)
|
---|
| 1117 | curl_slist_free_all(part->userheaders);
|
---|
| 1118 | Curl_safefree(part->mimetype);
|
---|
| 1119 | Curl_safefree(part->name);
|
---|
| 1120 | Curl_safefree(part->filename);
|
---|
| 1121 | Curl_mime_initpart(part, part->easy);
|
---|
| 1122 | }
|
---|
| 1123 |
|
---|
| 1124 | /* Recursively delete a mime handle and its parts. */
|
---|
| 1125 | void curl_mime_free(curl_mime *mime)
|
---|
| 1126 | {
|
---|
| 1127 | curl_mimepart *part;
|
---|
| 1128 |
|
---|
| 1129 | if(mime) {
|
---|
| 1130 | mime_subparts_unbind(mime); /* Be sure it's not referenced anymore. */
|
---|
| 1131 | while(mime->firstpart) {
|
---|
| 1132 | part = mime->firstpart;
|
---|
| 1133 | mime->firstpart = part->nextpart;
|
---|
| 1134 | Curl_mime_cleanpart(part);
|
---|
| 1135 | free(part);
|
---|
| 1136 | }
|
---|
| 1137 |
|
---|
| 1138 | free(mime->boundary);
|
---|
| 1139 | free(mime);
|
---|
| 1140 | }
|
---|
| 1141 | }
|
---|
| 1142 |
|
---|
| 1143 | /*
|
---|
| 1144 | * Mime build functions.
|
---|
| 1145 | */
|
---|
| 1146 |
|
---|
| 1147 | /* Create a mime handle. */
|
---|
| 1148 | curl_mime *curl_mime_init(struct Curl_easy *easy)
|
---|
| 1149 | {
|
---|
| 1150 | curl_mime *mime;
|
---|
| 1151 |
|
---|
| 1152 | mime = (curl_mime *) malloc(sizeof *mime);
|
---|
| 1153 |
|
---|
| 1154 | if(mime) {
|
---|
| 1155 | mime->easy = easy;
|
---|
| 1156 | mime->parent = NULL;
|
---|
| 1157 | mime->firstpart = NULL;
|
---|
| 1158 | mime->lastpart = NULL;
|
---|
| 1159 |
|
---|
| 1160 | /* Get a part boundary. */
|
---|
| 1161 | mime->boundary = malloc(24 + MIME_RAND_BOUNDARY_CHARS + 1);
|
---|
| 1162 | if(!mime->boundary) {
|
---|
| 1163 | free(mime);
|
---|
| 1164 | return NULL;
|
---|
| 1165 | }
|
---|
| 1166 |
|
---|
| 1167 | memset(mime->boundary, '-', 24);
|
---|
| 1168 | Curl_rand_hex(easy, (unsigned char *) mime->boundary + 24,
|
---|
| 1169 | MIME_RAND_BOUNDARY_CHARS + 1);
|
---|
| 1170 | mimesetstate(&mime->state, MIMESTATE_BEGIN, NULL);
|
---|
| 1171 | }
|
---|
| 1172 |
|
---|
| 1173 | return mime;
|
---|
| 1174 | }
|
---|
| 1175 |
|
---|
| 1176 | /* Initialize a mime part. */
|
---|
| 1177 | void Curl_mime_initpart(curl_mimepart *part, struct Curl_easy *easy)
|
---|
| 1178 | {
|
---|
| 1179 | memset((char *) part, 0, sizeof *part);
|
---|
| 1180 | part->easy = easy;
|
---|
| 1181 | mimesetstate(&part->state, MIMESTATE_BEGIN, NULL);
|
---|
| 1182 | }
|
---|
| 1183 |
|
---|
| 1184 | /* Create a mime part and append it to a mime handle's part list. */
|
---|
| 1185 | curl_mimepart *curl_mime_addpart(curl_mime *mime)
|
---|
| 1186 | {
|
---|
| 1187 | curl_mimepart *part;
|
---|
| 1188 |
|
---|
| 1189 | if(!mime)
|
---|
| 1190 | return NULL;
|
---|
| 1191 |
|
---|
| 1192 | part = (curl_mimepart *) malloc(sizeof *part);
|
---|
| 1193 |
|
---|
| 1194 | if(part) {
|
---|
| 1195 | Curl_mime_initpart(part, mime->easy);
|
---|
| 1196 | part->parent = mime;
|
---|
| 1197 |
|
---|
| 1198 | if(mime->lastpart)
|
---|
| 1199 | mime->lastpart->nextpart = part;
|
---|
| 1200 | else
|
---|
| 1201 | mime->firstpart = part;
|
---|
| 1202 |
|
---|
| 1203 | mime->lastpart = part;
|
---|
| 1204 | }
|
---|
| 1205 |
|
---|
| 1206 | return part;
|
---|
| 1207 | }
|
---|
| 1208 |
|
---|
| 1209 | /* Set mime part name. */
|
---|
| 1210 | CURLcode curl_mime_name(curl_mimepart *part, const char *name)
|
---|
| 1211 | {
|
---|
| 1212 | if(!part)
|
---|
| 1213 | return CURLE_BAD_FUNCTION_ARGUMENT;
|
---|
| 1214 |
|
---|
| 1215 | Curl_safefree(part->name);
|
---|
| 1216 | part->name = NULL;
|
---|
| 1217 |
|
---|
| 1218 | if(name) {
|
---|
| 1219 | part->name = strdup(name);
|
---|
| 1220 | if(!part->name)
|
---|
| 1221 | return CURLE_OUT_OF_MEMORY;
|
---|
| 1222 | }
|
---|
| 1223 |
|
---|
| 1224 | return CURLE_OK;
|
---|
| 1225 | }
|
---|
| 1226 |
|
---|
| 1227 | /* Set mime part remote file name. */
|
---|
| 1228 | CURLcode curl_mime_filename(curl_mimepart *part, const char *filename)
|
---|
| 1229 | {
|
---|
| 1230 | if(!part)
|
---|
| 1231 | return CURLE_BAD_FUNCTION_ARGUMENT;
|
---|
| 1232 |
|
---|
| 1233 | Curl_safefree(part->filename);
|
---|
| 1234 | part->filename = NULL;
|
---|
| 1235 |
|
---|
| 1236 | if(filename) {
|
---|
| 1237 | part->filename = strdup(filename);
|
---|
| 1238 | if(!part->filename)
|
---|
| 1239 | return CURLE_OUT_OF_MEMORY;
|
---|
| 1240 | }
|
---|
| 1241 |
|
---|
| 1242 | return CURLE_OK;
|
---|
| 1243 | }
|
---|
| 1244 |
|
---|
| 1245 | /* Set mime part content from memory data. */
|
---|
| 1246 | CURLcode curl_mime_data(curl_mimepart *part,
|
---|
| 1247 | const char *data, size_t datasize)
|
---|
| 1248 | {
|
---|
| 1249 | if(!part)
|
---|
| 1250 | return CURLE_BAD_FUNCTION_ARGUMENT;
|
---|
| 1251 |
|
---|
| 1252 | cleanup_part_content(part);
|
---|
| 1253 |
|
---|
| 1254 | if(data) {
|
---|
| 1255 | if(datasize == CURL_ZERO_TERMINATED)
|
---|
| 1256 | datasize = strlen(data);
|
---|
| 1257 |
|
---|
| 1258 | part->data = malloc(datasize + 1);
|
---|
| 1259 | if(!part->data)
|
---|
| 1260 | return CURLE_OUT_OF_MEMORY;
|
---|
| 1261 |
|
---|
| 1262 | part->datasize = datasize;
|
---|
| 1263 |
|
---|
| 1264 | if(datasize)
|
---|
| 1265 | memcpy(part->data, data, datasize);
|
---|
| 1266 | part->data[datasize] = '\0'; /* Set a nul terminator as sentinel. */
|
---|
| 1267 |
|
---|
| 1268 | part->readfunc = mime_mem_read;
|
---|
| 1269 | part->seekfunc = mime_mem_seek;
|
---|
| 1270 | part->freefunc = mime_mem_free;
|
---|
| 1271 | part->kind = MIMEKIND_DATA;
|
---|
| 1272 | }
|
---|
| 1273 |
|
---|
| 1274 | return CURLE_OK;
|
---|
| 1275 | }
|
---|
| 1276 |
|
---|
| 1277 | /* Set mime part content from named local file. */
|
---|
| 1278 | CURLcode curl_mime_filedata(curl_mimepart *part, const char *filename)
|
---|
| 1279 | {
|
---|
| 1280 | CURLcode result = CURLE_OK;
|
---|
| 1281 | char *base;
|
---|
| 1282 |
|
---|
| 1283 | if(!part)
|
---|
| 1284 | return CURLE_BAD_FUNCTION_ARGUMENT;
|
---|
| 1285 |
|
---|
| 1286 | cleanup_part_content(part);
|
---|
| 1287 |
|
---|
| 1288 | if(filename) {
|
---|
| 1289 | struct_stat sbuf;
|
---|
| 1290 |
|
---|
| 1291 | if(stat(filename, &sbuf) || access(filename, R_OK))
|
---|
| 1292 | result = CURLE_READ_ERROR;
|
---|
| 1293 |
|
---|
| 1294 | part->data = strdup(filename);
|
---|
| 1295 | if(!part->data)
|
---|
| 1296 | result = CURLE_OUT_OF_MEMORY;
|
---|
| 1297 |
|
---|
| 1298 | part->datasize = -1;
|
---|
| 1299 | if(!result && S_ISREG(sbuf.st_mode)) {
|
---|
| 1300 | part->datasize = filesize(filename, sbuf);
|
---|
| 1301 | part->seekfunc = mime_file_seek;
|
---|
| 1302 | }
|
---|
| 1303 |
|
---|
| 1304 | part->readfunc = mime_file_read;
|
---|
| 1305 | part->freefunc = mime_file_free;
|
---|
| 1306 | part->kind = MIMEKIND_FILE;
|
---|
| 1307 |
|
---|
| 1308 | /* As a side effect, set the filename to the current file's base name.
|
---|
| 1309 | It is possible to withdraw this by explicitly calling
|
---|
| 1310 | curl_mime_filename() with a NULL filename argument after the current
|
---|
| 1311 | call. */
|
---|
| 1312 | base = strippath(filename);
|
---|
| 1313 | if(!base)
|
---|
| 1314 | result = CURLE_OUT_OF_MEMORY;
|
---|
| 1315 | else {
|
---|
| 1316 | CURLcode res = curl_mime_filename(part, base);
|
---|
| 1317 |
|
---|
| 1318 | if(res)
|
---|
| 1319 | result = res;
|
---|
| 1320 | free(base);
|
---|
| 1321 | }
|
---|
| 1322 | }
|
---|
| 1323 | return result;
|
---|
| 1324 | }
|
---|
| 1325 |
|
---|
| 1326 | /* Set mime part type. */
|
---|
| 1327 | CURLcode curl_mime_type(curl_mimepart *part, const char *mimetype)
|
---|
| 1328 | {
|
---|
| 1329 | if(!part)
|
---|
| 1330 | return CURLE_BAD_FUNCTION_ARGUMENT;
|
---|
| 1331 |
|
---|
| 1332 | Curl_safefree(part->mimetype);
|
---|
| 1333 | part->mimetype = NULL;
|
---|
| 1334 |
|
---|
| 1335 | if(mimetype) {
|
---|
| 1336 | part->mimetype = strdup(mimetype);
|
---|
| 1337 | if(!part->mimetype)
|
---|
| 1338 | return CURLE_OUT_OF_MEMORY;
|
---|
| 1339 | }
|
---|
| 1340 |
|
---|
| 1341 | return CURLE_OK;
|
---|
| 1342 | }
|
---|
| 1343 |
|
---|
| 1344 | /* Set mime data transfer encoder. */
|
---|
| 1345 | CURLcode curl_mime_encoder(curl_mimepart *part, const char *encoding)
|
---|
| 1346 | {
|
---|
| 1347 | CURLcode result = CURLE_BAD_FUNCTION_ARGUMENT;
|
---|
| 1348 | const mime_encoder *mep;
|
---|
| 1349 |
|
---|
| 1350 | if(!part)
|
---|
| 1351 | return result;
|
---|
| 1352 |
|
---|
| 1353 | part->encoder = NULL;
|
---|
| 1354 |
|
---|
| 1355 | if(!encoding)
|
---|
| 1356 | return CURLE_OK; /* Removing current encoder. */
|
---|
| 1357 |
|
---|
| 1358 | for(mep = encoders; mep->name; mep++)
|
---|
| 1359 | if(strcasecompare(encoding, mep->name)) {
|
---|
| 1360 | part->encoder = mep;
|
---|
| 1361 | result = CURLE_OK;
|
---|
| 1362 | }
|
---|
| 1363 |
|
---|
| 1364 | return result;
|
---|
| 1365 | }
|
---|
| 1366 |
|
---|
| 1367 | /* Set mime part headers. */
|
---|
| 1368 | CURLcode curl_mime_headers(curl_mimepart *part,
|
---|
| 1369 | struct curl_slist *headers, int take_ownership)
|
---|
| 1370 | {
|
---|
| 1371 | if(!part)
|
---|
| 1372 | return CURLE_BAD_FUNCTION_ARGUMENT;
|
---|
| 1373 |
|
---|
| 1374 | if(part->flags & MIME_USERHEADERS_OWNER) {
|
---|
| 1375 | if(part->userheaders != headers) /* Allow setting twice the same list. */
|
---|
| 1376 | curl_slist_free_all(part->userheaders);
|
---|
| 1377 | part->flags &= ~MIME_USERHEADERS_OWNER;
|
---|
| 1378 | }
|
---|
| 1379 | part->userheaders = headers;
|
---|
| 1380 | if(headers && take_ownership)
|
---|
| 1381 | part->flags |= MIME_USERHEADERS_OWNER;
|
---|
| 1382 | return CURLE_OK;
|
---|
| 1383 | }
|
---|
| 1384 |
|
---|
| 1385 | /* Set mime part content from callback. */
|
---|
| 1386 | CURLcode curl_mime_data_cb(curl_mimepart *part, curl_off_t datasize,
|
---|
| 1387 | curl_read_callback readfunc,
|
---|
| 1388 | curl_seek_callback seekfunc,
|
---|
| 1389 | curl_free_callback freefunc, void *arg)
|
---|
| 1390 | {
|
---|
| 1391 | if(!part)
|
---|
| 1392 | return CURLE_BAD_FUNCTION_ARGUMENT;
|
---|
| 1393 |
|
---|
| 1394 | cleanup_part_content(part);
|
---|
| 1395 |
|
---|
| 1396 | if(readfunc) {
|
---|
| 1397 | part->readfunc = readfunc;
|
---|
| 1398 | part->seekfunc = seekfunc;
|
---|
| 1399 | part->freefunc = freefunc;
|
---|
| 1400 | part->arg = arg;
|
---|
| 1401 | part->datasize = datasize;
|
---|
| 1402 | part->kind = MIMEKIND_CALLBACK;
|
---|
| 1403 | }
|
---|
| 1404 |
|
---|
| 1405 | return CURLE_OK;
|
---|
| 1406 | }
|
---|
| 1407 |
|
---|
| 1408 | /* Set mime part content from subparts. */
|
---|
| 1409 | CURLcode Curl_mime_set_subparts(curl_mimepart *part,
|
---|
| 1410 | curl_mime *subparts, int take_ownership)
|
---|
| 1411 | {
|
---|
| 1412 | curl_mime *root;
|
---|
| 1413 |
|
---|
| 1414 | if(!part)
|
---|
| 1415 | return CURLE_BAD_FUNCTION_ARGUMENT;
|
---|
| 1416 |
|
---|
| 1417 | /* Accept setting twice the same subparts. */
|
---|
| 1418 | if(part->kind == MIMEKIND_MULTIPART && part->arg == subparts)
|
---|
| 1419 | return CURLE_OK;
|
---|
| 1420 |
|
---|
| 1421 | cleanup_part_content(part);
|
---|
| 1422 |
|
---|
| 1423 | if(subparts) {
|
---|
| 1424 | /* Must belong to the same data handle. */
|
---|
| 1425 | if(part->easy && subparts->easy && part->easy != subparts->easy)
|
---|
| 1426 | return CURLE_BAD_FUNCTION_ARGUMENT;
|
---|
| 1427 |
|
---|
| 1428 | /* Should not have been attached already. */
|
---|
| 1429 | if(subparts->parent)
|
---|
| 1430 | return CURLE_BAD_FUNCTION_ARGUMENT;
|
---|
| 1431 |
|
---|
| 1432 | /* Should not be the part's root. */
|
---|
| 1433 | root = part->parent;
|
---|
| 1434 | if(root) {
|
---|
| 1435 | while(root->parent && root->parent->parent)
|
---|
| 1436 | root = root->parent->parent;
|
---|
| 1437 | if(subparts == root) {
|
---|
| 1438 | if(part->easy)
|
---|
| 1439 | failf(part->easy, "Can't add itself as a subpart!");
|
---|
| 1440 | return CURLE_BAD_FUNCTION_ARGUMENT;
|
---|
| 1441 | }
|
---|
| 1442 | }
|
---|
| 1443 |
|
---|
| 1444 | subparts->parent = part;
|
---|
| 1445 | part->readfunc = mime_subparts_read;
|
---|
| 1446 | part->seekfunc = mime_subparts_seek;
|
---|
| 1447 | part->freefunc = take_ownership? mime_subparts_free: mime_subparts_unbind;
|
---|
| 1448 | part->arg = subparts;
|
---|
| 1449 | part->datasize = -1;
|
---|
| 1450 | part->kind = MIMEKIND_MULTIPART;
|
---|
| 1451 | }
|
---|
| 1452 |
|
---|
| 1453 | return CURLE_OK;
|
---|
| 1454 | }
|
---|
| 1455 |
|
---|
| 1456 | CURLcode curl_mime_subparts(curl_mimepart *part, curl_mime *subparts)
|
---|
| 1457 | {
|
---|
| 1458 | return Curl_mime_set_subparts(part, subparts, TRUE);
|
---|
| 1459 | }
|
---|
| 1460 |
|
---|
| 1461 |
|
---|
| 1462 | /* Readback from top mime. */
|
---|
| 1463 | /* Argument is the dummy top part. */
|
---|
| 1464 | size_t Curl_mime_read(char *buffer, size_t size, size_t nitems, void *instream)
|
---|
| 1465 | {
|
---|
| 1466 | curl_mimepart *part = (curl_mimepart *) instream;
|
---|
| 1467 |
|
---|
| 1468 | (void) size; /* Always 1. */
|
---|
| 1469 | return readback_part(part, buffer, nitems);
|
---|
| 1470 | }
|
---|
| 1471 |
|
---|
| 1472 | /* Rewind mime stream. */
|
---|
| 1473 | CURLcode Curl_mime_rewind(curl_mimepart *part)
|
---|
| 1474 | {
|
---|
| 1475 | return mime_part_rewind(part) == CURL_SEEKFUNC_OK?
|
---|
| 1476 | CURLE_OK: CURLE_SEND_FAIL_REWIND;
|
---|
| 1477 | }
|
---|
| 1478 |
|
---|
| 1479 | /* Compute header list size. */
|
---|
| 1480 | static size_t slist_size(struct curl_slist *s,
|
---|
| 1481 | size_t overhead, const char *skip)
|
---|
| 1482 | {
|
---|
| 1483 | size_t size = 0;
|
---|
| 1484 | size_t skiplen = skip? strlen(skip): 0;
|
---|
| 1485 |
|
---|
| 1486 | for(; s; s = s->next)
|
---|
| 1487 | if(!skip || !match_header(s, skip, skiplen))
|
---|
| 1488 | size += strlen(s->data) + overhead;
|
---|
| 1489 | return size;
|
---|
| 1490 | }
|
---|
| 1491 |
|
---|
| 1492 | /* Get/compute multipart size. */
|
---|
| 1493 | static curl_off_t multipart_size(curl_mime *mime)
|
---|
| 1494 | {
|
---|
| 1495 | curl_off_t size;
|
---|
| 1496 | curl_off_t sz;
|
---|
| 1497 | size_t boundarysize;
|
---|
| 1498 | curl_mimepart *part;
|
---|
| 1499 |
|
---|
| 1500 | if(!mime)
|
---|
| 1501 | return 0; /* Not present -> empty. */
|
---|
| 1502 |
|
---|
| 1503 | boundarysize = 4 + strlen(mime->boundary) + 2;
|
---|
| 1504 | size = boundarysize; /* Final boundary - CRLF after headers. */
|
---|
| 1505 |
|
---|
| 1506 | for(part = mime->firstpart; part; part = part->nextpart) {
|
---|
| 1507 | sz = Curl_mime_size(part);
|
---|
| 1508 |
|
---|
| 1509 | if(sz < 0)
|
---|
| 1510 | size = sz;
|
---|
| 1511 |
|
---|
| 1512 | if(size >= 0)
|
---|
| 1513 | size += boundarysize + sz;
|
---|
| 1514 | }
|
---|
| 1515 |
|
---|
| 1516 | return size;
|
---|
| 1517 | }
|
---|
| 1518 |
|
---|
| 1519 | /* Get/compute mime size. */
|
---|
| 1520 | curl_off_t Curl_mime_size(curl_mimepart *part)
|
---|
| 1521 | {
|
---|
| 1522 | curl_off_t size;
|
---|
| 1523 |
|
---|
| 1524 | if(part->kind == MIMEKIND_MULTIPART)
|
---|
| 1525 | part->datasize = multipart_size(part->arg);
|
---|
| 1526 |
|
---|
| 1527 | size = part->datasize;
|
---|
| 1528 |
|
---|
| 1529 | if(part->encoder)
|
---|
| 1530 | size = part->encoder->sizefunc(part);
|
---|
| 1531 |
|
---|
| 1532 | if(size >= 0 && !(part->flags & MIME_BODY_ONLY)) {
|
---|
| 1533 | /* Compute total part size. */
|
---|
| 1534 | size += slist_size(part->curlheaders, 2, NULL);
|
---|
| 1535 | size += slist_size(part->userheaders, 2, "Content-Type");
|
---|
| 1536 | size += 2; /* CRLF after headers. */
|
---|
| 1537 | }
|
---|
| 1538 | return size;
|
---|
| 1539 | }
|
---|
| 1540 |
|
---|
| 1541 | /* Add a header. */
|
---|
| 1542 | /* VARARGS2 */
|
---|
| 1543 | CURLcode Curl_mime_add_header(struct curl_slist **slp, const char *fmt, ...)
|
---|
| 1544 | {
|
---|
| 1545 | struct curl_slist *hdr = NULL;
|
---|
| 1546 | char *s = NULL;
|
---|
| 1547 | va_list ap;
|
---|
| 1548 |
|
---|
| 1549 | va_start(ap, fmt);
|
---|
| 1550 | s = curl_mvaprintf(fmt, ap);
|
---|
| 1551 | va_end(ap);
|
---|
| 1552 |
|
---|
| 1553 | if(s) {
|
---|
| 1554 | hdr = Curl_slist_append_nodup(*slp, s);
|
---|
| 1555 | if(hdr)
|
---|
| 1556 | *slp = hdr;
|
---|
| 1557 | else
|
---|
| 1558 | free(s);
|
---|
| 1559 | }
|
---|
| 1560 |
|
---|
| 1561 | return hdr? CURLE_OK: CURLE_OUT_OF_MEMORY;
|
---|
| 1562 | }
|
---|
| 1563 |
|
---|
| 1564 | /* Add a content type header. */
|
---|
| 1565 | static CURLcode add_content_type(struct curl_slist **slp,
|
---|
| 1566 | const char *type, const char *boundary)
|
---|
| 1567 | {
|
---|
| 1568 | return Curl_mime_add_header(slp, "Content-Type: %s%s%s", type,
|
---|
| 1569 | boundary? "; boundary=": "",
|
---|
| 1570 | boundary? boundary: "");
|
---|
| 1571 | }
|
---|
| 1572 |
|
---|
| 1573 |
|
---|
| 1574 | static const char *ContentTypeForFilename(const char *filename)
|
---|
| 1575 | {
|
---|
| 1576 | unsigned int i;
|
---|
| 1577 |
|
---|
| 1578 | /*
|
---|
| 1579 | * If no content type was specified, we scan through a few well-known
|
---|
| 1580 | * extensions and pick the first we match!
|
---|
| 1581 | */
|
---|
| 1582 | struct ContentType {
|
---|
| 1583 | const char *extension;
|
---|
| 1584 | const char *type;
|
---|
| 1585 | };
|
---|
| 1586 | static const struct ContentType ctts[] = {
|
---|
| 1587 | {".gif", "image/gif"},
|
---|
| 1588 | {".jpg", "image/jpeg"},
|
---|
| 1589 | {".jpeg", "image/jpeg"},
|
---|
| 1590 | {".png", "image/png"},
|
---|
| 1591 | {".svg", "image/svg+xml"},
|
---|
| 1592 | {".txt", "text/plain"},
|
---|
| 1593 | {".htm", "text/html"},
|
---|
| 1594 | {".html", "text/html"},
|
---|
| 1595 | {".pdf", "application/pdf"},
|
---|
| 1596 | {".xml", "application/xml"}
|
---|
| 1597 | };
|
---|
| 1598 |
|
---|
| 1599 | if(filename) {
|
---|
| 1600 | size_t len1 = strlen(filename);
|
---|
| 1601 | const char *nameend = filename + len1;
|
---|
| 1602 |
|
---|
| 1603 | for(i = 0; i < sizeof ctts / sizeof ctts[0]; i++) {
|
---|
| 1604 | size_t len2 = strlen(ctts[i].extension);
|
---|
| 1605 |
|
---|
| 1606 | if(len1 >= len2 && strcasecompare(nameend - len2, ctts[i].extension))
|
---|
| 1607 | return ctts[i].type;
|
---|
| 1608 | }
|
---|
| 1609 | }
|
---|
| 1610 | return NULL;
|
---|
| 1611 | }
|
---|
| 1612 |
|
---|
| 1613 | CURLcode Curl_mime_prepare_headers(curl_mimepart *part,
|
---|
| 1614 | const char *contenttype,
|
---|
| 1615 | const char *disposition,
|
---|
| 1616 | enum mimestrategy strategy)
|
---|
| 1617 | {
|
---|
| 1618 | curl_mime *mime = NULL;
|
---|
| 1619 | const char *boundary = NULL;
|
---|
| 1620 | char *customct;
|
---|
| 1621 | const char *cte = NULL;
|
---|
| 1622 | CURLcode ret = CURLE_OK;
|
---|
| 1623 |
|
---|
| 1624 | /* Get rid of previously prepared headers. */
|
---|
| 1625 | curl_slist_free_all(part->curlheaders);
|
---|
| 1626 | part->curlheaders = NULL;
|
---|
| 1627 |
|
---|
| 1628 | /* Be sure we won't access old headers later. */
|
---|
| 1629 | if(part->state.state == MIMESTATE_CURLHEADERS)
|
---|
| 1630 | mimesetstate(&part->state, MIMESTATE_CURLHEADERS, NULL);
|
---|
| 1631 |
|
---|
| 1632 | /* Check if content type is specified. */
|
---|
| 1633 | customct = part->mimetype;
|
---|
| 1634 | if(!customct)
|
---|
| 1635 | customct = search_header(part->userheaders, "Content-Type");
|
---|
| 1636 | if(customct)
|
---|
| 1637 | contenttype = customct;
|
---|
| 1638 |
|
---|
| 1639 | /* If content type is not specified, try to determine it. */
|
---|
| 1640 | if(!contenttype) {
|
---|
| 1641 | switch(part->kind) {
|
---|
| 1642 | case MIMEKIND_MULTIPART:
|
---|
| 1643 | contenttype = MULTIPART_CONTENTTYPE_DEFAULT;
|
---|
| 1644 | break;
|
---|
| 1645 | case MIMEKIND_FILE:
|
---|
| 1646 | contenttype = ContentTypeForFilename(part->filename);
|
---|
| 1647 | if(!contenttype)
|
---|
| 1648 | contenttype = ContentTypeForFilename(part->data);
|
---|
| 1649 | if(!contenttype && part->filename)
|
---|
| 1650 | contenttype = FILE_CONTENTTYPE_DEFAULT;
|
---|
| 1651 | break;
|
---|
| 1652 | default:
|
---|
| 1653 | contenttype = ContentTypeForFilename(part->filename);
|
---|
| 1654 | break;
|
---|
| 1655 | }
|
---|
| 1656 | }
|
---|
| 1657 |
|
---|
| 1658 | if(part->kind == MIMEKIND_MULTIPART) {
|
---|
| 1659 | mime = (curl_mime *) part->arg;
|
---|
| 1660 | if(mime)
|
---|
| 1661 | boundary = mime->boundary;
|
---|
| 1662 | }
|
---|
| 1663 | else if(contenttype && !customct &&
|
---|
| 1664 | strcasecompare(contenttype, "text/plain"))
|
---|
| 1665 | if(strategy == MIMESTRATEGY_MAIL || !part->filename)
|
---|
| 1666 | contenttype = NULL;
|
---|
| 1667 |
|
---|
| 1668 | /* Issue content-disposition header only if not already set by caller. */
|
---|
| 1669 | if(!search_header(part->userheaders, "Content-Disposition")) {
|
---|
| 1670 | if(!disposition)
|
---|
| 1671 | if(part->filename || part->name ||
|
---|
| 1672 | (contenttype && !strncasecompare(contenttype, "multipart/", 10)))
|
---|
| 1673 | disposition = DISPOSITION_DEFAULT;
|
---|
| 1674 | if(disposition && curl_strequal(disposition, "attachment") &&
|
---|
| 1675 | !part->name && !part->filename)
|
---|
| 1676 | disposition = NULL;
|
---|
| 1677 | if(disposition) {
|
---|
| 1678 | char *name = NULL;
|
---|
| 1679 | char *filename = NULL;
|
---|
| 1680 |
|
---|
| 1681 | if(part->name) {
|
---|
| 1682 | name = escape_string(part->name);
|
---|
| 1683 | if(!name)
|
---|
| 1684 | ret = CURLE_OUT_OF_MEMORY;
|
---|
| 1685 | }
|
---|
| 1686 | if(!ret && part->filename) {
|
---|
| 1687 | filename = escape_string(part->filename);
|
---|
| 1688 | if(!filename)
|
---|
| 1689 | ret = CURLE_OUT_OF_MEMORY;
|
---|
| 1690 | }
|
---|
| 1691 | if(!ret)
|
---|
| 1692 | ret = Curl_mime_add_header(&part->curlheaders,
|
---|
| 1693 | "Content-Disposition: %s%s%s%s%s%s%s",
|
---|
| 1694 | disposition,
|
---|
| 1695 | name? "; name=\"": "",
|
---|
| 1696 | name? name: "",
|
---|
| 1697 | name? "\"": "",
|
---|
| 1698 | filename? "; filename=\"": "",
|
---|
| 1699 | filename? filename: "",
|
---|
| 1700 | filename? "\"": "");
|
---|
| 1701 | Curl_safefree(name);
|
---|
| 1702 | Curl_safefree(filename);
|
---|
| 1703 | if(ret)
|
---|
| 1704 | return ret;
|
---|
| 1705 | }
|
---|
| 1706 | }
|
---|
| 1707 |
|
---|
| 1708 | /* Issue Content-Type header. */
|
---|
| 1709 | if(contenttype) {
|
---|
| 1710 | ret = add_content_type(&part->curlheaders, contenttype, boundary);
|
---|
| 1711 | if(ret)
|
---|
| 1712 | return ret;
|
---|
| 1713 | }
|
---|
| 1714 |
|
---|
| 1715 | /* Content-Transfer-Encoding header. */
|
---|
| 1716 | if(!search_header(part->userheaders, "Content-Transfer-Encoding")) {
|
---|
| 1717 | if(part->encoder)
|
---|
| 1718 | cte = part->encoder->name;
|
---|
| 1719 | else if(contenttype && strategy == MIMESTRATEGY_MAIL &&
|
---|
| 1720 | part->kind != MIMEKIND_MULTIPART)
|
---|
| 1721 | cte = "8bit";
|
---|
| 1722 | if(cte) {
|
---|
| 1723 | ret = Curl_mime_add_header(&part->curlheaders,
|
---|
| 1724 | "Content-Transfer-Encoding: %s", cte);
|
---|
| 1725 | if(ret)
|
---|
| 1726 | return ret;
|
---|
| 1727 | }
|
---|
| 1728 | }
|
---|
| 1729 |
|
---|
| 1730 | /* If we were reading curl-generated headers, restart with new ones (this
|
---|
| 1731 | should not occur). */
|
---|
| 1732 | if(part->state.state == MIMESTATE_CURLHEADERS)
|
---|
| 1733 | mimesetstate(&part->state, MIMESTATE_CURLHEADERS, part->curlheaders);
|
---|
| 1734 |
|
---|
| 1735 | /* Process subparts. */
|
---|
| 1736 | if(part->kind == MIMEKIND_MULTIPART && mime) {
|
---|
| 1737 | curl_mimepart *subpart;
|
---|
| 1738 |
|
---|
| 1739 | disposition = NULL;
|
---|
| 1740 | if(strcasecompare(contenttype, "multipart/form-data"))
|
---|
| 1741 | disposition = "form-data";
|
---|
| 1742 | for(subpart = mime->firstpart; subpart; subpart = subpart->nextpart) {
|
---|
| 1743 | ret = Curl_mime_prepare_headers(subpart, NULL, disposition, strategy);
|
---|
| 1744 | if(ret)
|
---|
| 1745 | return ret;
|
---|
| 1746 | }
|
---|
| 1747 | }
|
---|
| 1748 | return ret;
|
---|
| 1749 | }
|
---|
| 1750 |
|
---|
| 1751 | #else /* !CURL_DISABLE_HTTP || !CURL_DISABLE_SMTP || !CURL_DISABLE_IMAP */
|
---|
| 1752 |
|
---|
| 1753 | /* Mime not compiled in: define stubs for externally-referenced functions. */
|
---|
| 1754 | curl_mime *curl_mime_init(CURL *easy)
|
---|
| 1755 | {
|
---|
| 1756 | (void) easy;
|
---|
| 1757 | return NULL;
|
---|
| 1758 | }
|
---|
| 1759 |
|
---|
| 1760 | void curl_mime_free(curl_mime *mime)
|
---|
| 1761 | {
|
---|
| 1762 | (void) mime;
|
---|
| 1763 | }
|
---|
| 1764 |
|
---|
| 1765 | curl_mimepart *curl_mime_addpart(curl_mime *mime)
|
---|
| 1766 | {
|
---|
| 1767 | (void) mime;
|
---|
| 1768 | return NULL;
|
---|
| 1769 | }
|
---|
| 1770 |
|
---|
| 1771 | CURLcode curl_mime_name(curl_mimepart *part, const char *name)
|
---|
| 1772 | {
|
---|
| 1773 | (void) part;
|
---|
| 1774 | (void) name;
|
---|
| 1775 | return CURLE_NOT_BUILT_IN;
|
---|
| 1776 | }
|
---|
| 1777 |
|
---|
| 1778 | CURLcode curl_mime_filename(curl_mimepart *part, const char *filename)
|
---|
| 1779 | {
|
---|
| 1780 | (void) part;
|
---|
| 1781 | (void) filename;
|
---|
| 1782 | return CURLE_NOT_BUILT_IN;
|
---|
| 1783 | }
|
---|
| 1784 |
|
---|
| 1785 | CURLcode curl_mime_type(curl_mimepart *part, const char *mimetype)
|
---|
| 1786 | {
|
---|
| 1787 | (void) part;
|
---|
| 1788 | (void) mimetype;
|
---|
| 1789 | return CURLE_NOT_BUILT_IN;
|
---|
| 1790 | }
|
---|
| 1791 |
|
---|
| 1792 | CURLcode curl_mime_encoder(curl_mimepart *part, const char *encoding)
|
---|
| 1793 | {
|
---|
| 1794 | (void) part;
|
---|
| 1795 | (void) encoding;
|
---|
| 1796 | return CURLE_NOT_BUILT_IN;
|
---|
| 1797 | }
|
---|
| 1798 |
|
---|
| 1799 | CURLcode curl_mime_data(curl_mimepart *part,
|
---|
| 1800 | const char *data, size_t datasize)
|
---|
| 1801 | {
|
---|
| 1802 | (void) part;
|
---|
| 1803 | (void) data;
|
---|
| 1804 | (void) datasize;
|
---|
| 1805 | return CURLE_NOT_BUILT_IN;
|
---|
| 1806 | }
|
---|
| 1807 |
|
---|
| 1808 | CURLcode curl_mime_filedata(curl_mimepart *part, const char *filename)
|
---|
| 1809 | {
|
---|
| 1810 | (void) part;
|
---|
| 1811 | (void) filename;
|
---|
| 1812 | return CURLE_NOT_BUILT_IN;
|
---|
| 1813 | }
|
---|
| 1814 |
|
---|
| 1815 | CURLcode curl_mime_data_cb(curl_mimepart *part,
|
---|
| 1816 | curl_off_t datasize,
|
---|
| 1817 | curl_read_callback readfunc,
|
---|
| 1818 | curl_seek_callback seekfunc,
|
---|
| 1819 | curl_free_callback freefunc,
|
---|
| 1820 | void *arg)
|
---|
| 1821 | {
|
---|
| 1822 | (void) part;
|
---|
| 1823 | (void) datasize;
|
---|
| 1824 | (void) readfunc;
|
---|
| 1825 | (void) seekfunc;
|
---|
| 1826 | (void) freefunc;
|
---|
| 1827 | (void) arg;
|
---|
| 1828 | return CURLE_NOT_BUILT_IN;
|
---|
| 1829 | }
|
---|
| 1830 |
|
---|
| 1831 | CURLcode curl_mime_subparts(curl_mimepart *part, curl_mime *subparts)
|
---|
| 1832 | {
|
---|
| 1833 | (void) part;
|
---|
| 1834 | (void) subparts;
|
---|
| 1835 | return CURLE_NOT_BUILT_IN;
|
---|
| 1836 | }
|
---|
| 1837 |
|
---|
| 1838 | CURLcode curl_mime_headers(curl_mimepart *part,
|
---|
| 1839 | struct curl_slist *headers, int take_ownership)
|
---|
| 1840 | {
|
---|
| 1841 | (void) part;
|
---|
| 1842 | (void) headers;
|
---|
| 1843 | (void) take_ownership;
|
---|
| 1844 | return CURLE_NOT_BUILT_IN;
|
---|
| 1845 | }
|
---|
| 1846 |
|
---|
| 1847 | void Curl_mime_initpart(curl_mimepart *part, struct Curl_easy *easy)
|
---|
| 1848 | {
|
---|
| 1849 | (void) part;
|
---|
| 1850 | (void) easy;
|
---|
| 1851 | }
|
---|
| 1852 |
|
---|
| 1853 | void Curl_mime_cleanpart(curl_mimepart *part)
|
---|
| 1854 | {
|
---|
| 1855 | (void) part;
|
---|
| 1856 | }
|
---|
| 1857 |
|
---|
| 1858 | CURLcode Curl_mime_set_subparts(curl_mimepart *part,
|
---|
| 1859 | curl_mime *subparts, int take_ownership)
|
---|
| 1860 | {
|
---|
| 1861 | (void) part;
|
---|
| 1862 | (void) subparts;
|
---|
| 1863 | (void) take_ownership;
|
---|
| 1864 | return CURLE_NOT_BUILT_IN;
|
---|
| 1865 | }
|
---|
| 1866 |
|
---|
| 1867 | CURLcode Curl_mime_prepare_headers(curl_mimepart *part,
|
---|
| 1868 | const char *contenttype,
|
---|
| 1869 | const char *disposition,
|
---|
| 1870 | enum mimestrategy strategy)
|
---|
| 1871 | {
|
---|
| 1872 | (void) part;
|
---|
| 1873 | (void) contenttype;
|
---|
| 1874 | (void) disposition;
|
---|
| 1875 | (void) strategy;
|
---|
| 1876 | return CURLE_NOT_BUILT_IN;
|
---|
| 1877 | }
|
---|
| 1878 |
|
---|
| 1879 | curl_off_t Curl_mime_size(curl_mimepart *part)
|
---|
| 1880 | {
|
---|
| 1881 | (void) part;
|
---|
| 1882 | return (curl_off_t) -1;
|
---|
| 1883 | }
|
---|
| 1884 |
|
---|
| 1885 | size_t Curl_mime_read(char *buffer, size_t size, size_t nitems, void *instream)
|
---|
| 1886 | {
|
---|
| 1887 | (void) buffer;
|
---|
| 1888 | (void) size;
|
---|
| 1889 | (void) nitems;
|
---|
| 1890 | (void) instream;
|
---|
| 1891 | return 0;
|
---|
| 1892 | }
|
---|
| 1893 |
|
---|
| 1894 | CURLcode Curl_mime_rewind(curl_mimepart *part)
|
---|
| 1895 | {
|
---|
| 1896 | (void) part;
|
---|
| 1897 | return CURLE_NOT_BUILT_IN;
|
---|
| 1898 | }
|
---|
| 1899 |
|
---|
| 1900 | /* VARARGS2 */
|
---|
| 1901 | CURLcode Curl_mime_add_header(struct curl_slist **slp, const char *fmt, ...)
|
---|
| 1902 | {
|
---|
| 1903 | (void) slp;
|
---|
| 1904 | (void) fmt;
|
---|
| 1905 | return CURLE_NOT_BUILT_IN;
|
---|
| 1906 | }
|
---|
| 1907 |
|
---|
| 1908 | #endif /* !CURL_DISABLE_HTTP || !CURL_DISABLE_SMTP || !CURL_DISABLE_IMAP */
|
---|