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| 1 | /*
|
|---|---|
| 2 | * LibSylph -- E-Mail client library |
| 3 | * Copyright (C) 1999-2011 Hiroyuki Yamamoto |
| 4 | */ |
| 5 | |
| 6 | #ifdef HAVE_CONFIG_H
|
| 7 | # include "config.h" |
| 8 | #endif
|
| 9 | |
| 10 | #include "defs.h" |
| 11 | |
| 12 | #include <glib.h> |
| 13 | #include <glib/gi18n.h> |
| 14 | #include <stdio.h> |
| 15 | #include <string.h> |
| 16 | #include <locale.h> |
| 17 | #include <ctype.h> |
| 18 | |
| 19 | #include "procmime.h" |
| 20 | #include "procheader.h" |
| 21 | #include "base64.h" |
| 22 | #include "quoted-printable.h" |
| 23 | #include "uuencode.h" |
| 24 | #include "html.h" |
| 25 | #include "codeconv.h" |
| 26 | #include "utils.h" |
| 27 | |
| 28 | #define MAX_MIME_LEVEL 64 |
| 29 | |
| 30 | static GHashTable *procmime_get_mime_type_table (void); |
| 31 | static GList *procmime_get_mime_type_list (const gchar *file); |
| 32 | |
| 33 | |
| 34 | MimeInfo *procmime_mimeinfo_new(void)
|
| 35 | {
|
| 36 | MimeInfo *mimeinfo; |
| 37 | |
| 38 | mimeinfo = g_new0(MimeInfo, 1);
|
| 39 | mimeinfo->mime_type = MIME_UNKNOWN; |
| 40 | mimeinfo->encoding_type = ENC_UNKNOWN; |
| 41 | |
| 42 | return mimeinfo;
|
| 43 | } |
| 44 | |
| 45 | void procmime_mimeinfo_free_all(MimeInfo *mimeinfo)
|
| 46 | {
|
| 47 | while (mimeinfo != NULL) { |
| 48 | MimeInfo *next; |
| 49 | |
| 50 | g_free(mimeinfo->encoding); |
| 51 | g_free(mimeinfo->content_type); |
| 52 | g_free(mimeinfo->charset); |
| 53 | g_free(mimeinfo->name); |
| 54 | g_free(mimeinfo->boundary); |
| 55 | g_free(mimeinfo->content_disposition); |
| 56 | g_free(mimeinfo->filename); |
| 57 | |
| 58 | g_free(mimeinfo->sigstatus); |
| 59 | g_free(mimeinfo->sigstatus_full); |
| 60 | |
| 61 | procmime_mimeinfo_free_all(mimeinfo->sub); |
| 62 | procmime_mimeinfo_free_all(mimeinfo->children); |
| 63 | procmime_mimeinfo_free_all(mimeinfo->plaintext); |
| 64 | |
| 65 | next = mimeinfo->next; |
| 66 | g_free(mimeinfo); |
| 67 | mimeinfo = next; |
| 68 | } |
| 69 | } |
| 70 | |
| 71 | MimeInfo *procmime_mimeinfo_insert(MimeInfo *parent, MimeInfo *mimeinfo) |
| 72 | {
|
| 73 | MimeInfo *child = parent->children; |
| 74 | |
| 75 | if (!child)
|
| 76 | parent->children = mimeinfo; |
| 77 | else {
|
| 78 | while (child->next != NULL) |
| 79 | child = child->next; |
| 80 | |
| 81 | child->next = mimeinfo; |
| 82 | } |
| 83 | |
| 84 | mimeinfo->parent = parent; |
| 85 | mimeinfo->level = parent->level + 1;
|
| 86 | |
| 87 | return mimeinfo;
|
| 88 | } |
| 89 | |
| 90 | #if 0
|
| 91 | void procmime_mimeinfo_replace(MimeInfo *old, MimeInfo *new) |
| 92 | {
|
| 93 | MimeInfo *parent = old->parent; |
| 94 | MimeInfo *child; |
| 95 | |
| 96 | g_return_if_fail(parent != NULL); |
| 97 | g_return_if_fail(new->next == NULL); |
| 98 | |
| 99 | for (child = parent->children; child && child != old; |
| 100 | child = child->next) |
| 101 | ; |
| 102 | if (!child) {
|
| 103 | g_warning("oops: parent can't find it's own child");
|
| 104 | return; |
| 105 | } |
| 106 | procmime_mimeinfo_free_all(old); |
| 107 | |
| 108 | if (child == parent->children) {
|
| 109 | new->next = parent->children->next; |
| 110 | parent->children = new; |
| 111 | } else {
|
| 112 | new->next = child->next; |
| 113 | child = new; |
| 114 | } |
| 115 | } |
| 116 | #endif |
| 117 | |
| 118 | MimeInfo *procmime_mimeinfo_next(MimeInfo *mimeinfo) |
| 119 | {
|
| 120 | if (!mimeinfo) return NULL; |
| 121 | |
| 122 | if (mimeinfo->children)
|
| 123 | return mimeinfo->children;
|
| 124 | if (mimeinfo->sub)
|
| 125 | return mimeinfo->sub;
|
| 126 | if (mimeinfo->next)
|
| 127 | return mimeinfo->next;
|
| 128 | |
| 129 | if (mimeinfo->main) {
|
| 130 | mimeinfo = mimeinfo->main; |
| 131 | if (mimeinfo->next)
|
| 132 | return mimeinfo->next;
|
| 133 | } |
| 134 | |
| 135 | for (mimeinfo = mimeinfo->parent; mimeinfo != NULL; |
| 136 | mimeinfo = mimeinfo->parent) {
|
| 137 | if (mimeinfo->next)
|
| 138 | return mimeinfo->next;
|
| 139 | if (mimeinfo->main) {
|
| 140 | mimeinfo = mimeinfo->main; |
| 141 | if (mimeinfo->next)
|
| 142 | return mimeinfo->next;
|
| 143 | } |
| 144 | } |
| 145 | |
| 146 | return NULL; |
| 147 | } |
| 148 | |
| 149 | #if 0
|
| 150 | void procmime_dump_mimeinfo(MimeInfo *mimeinfo) |
| 151 | {
|
| 152 | gint i; |
| 153 | |
| 154 | g_print("\n");
|
| 155 | |
| 156 | for (; mimeinfo != NULL; mimeinfo = procmime_mimeinfo_next(mimeinfo)) {
|
| 157 | for (i = 0; i < mimeinfo->level; i++) |
| 158 | g_print(" ");
|
| 159 | g_print("%s%s\n", mimeinfo->main ? "sub: " : "",
|
| 160 | mimeinfo->content_type); |
| 161 | } |
| 162 | } |
| 163 | #endif |
| 164 | |
| 165 | MimeInfo *procmime_scan_message(MsgInfo *msginfo) |
| 166 | {
|
| 167 | FILE *fp; |
| 168 | MimeInfo *mimeinfo; |
| 169 | |
| 170 | g_return_val_if_fail(msginfo != NULL, NULL); |
| 171 | |
| 172 | if ((fp = procmsg_open_message_decrypted(msginfo, &mimeinfo)) == NULL) |
| 173 | return NULL; |
| 174 | |
| 175 | if (mimeinfo) {
|
| 176 | mimeinfo->size = msginfo->size; |
| 177 | mimeinfo->content_size = get_left_file_size(fp); |
| 178 | if (mimeinfo->encoding_type == ENC_BASE64)
|
| 179 | mimeinfo->content_size = mimeinfo->content_size / 4 * 3; |
| 180 | if (mimeinfo->mime_type == MIME_MULTIPART ||
|
| 181 | mimeinfo->mime_type == MIME_MESSAGE_RFC822) |
| 182 | procmime_scan_multipart_message(mimeinfo, fp); |
| 183 | } |
| 184 | |
| 185 | fclose(fp); |
| 186 | |
| 187 | return mimeinfo;
|
| 188 | } |
| 189 | |
| 190 | void procmime_scan_multipart_message(MimeInfo *mimeinfo, FILE *fp)
|
| 191 | {
|
| 192 | gchar *p; |
| 193 | gchar *boundary; |
| 194 | gint boundary_len = 0;
|
| 195 | gchar *buf; |
| 196 | glong fpos, prev_fpos; |
| 197 | |
| 198 | g_return_if_fail(mimeinfo != NULL);
|
| 199 | g_return_if_fail(mimeinfo->mime_type == MIME_MULTIPART || |
| 200 | mimeinfo->mime_type == MIME_MESSAGE_RFC822); |
| 201 | |
| 202 | if (mimeinfo->mime_type == MIME_MULTIPART) {
|
| 203 | g_return_if_fail(mimeinfo->boundary != NULL);
|
| 204 | g_return_if_fail(mimeinfo->sub == NULL);
|
| 205 | } |
| 206 | g_return_if_fail(fp != NULL);
|
| 207 | |
| 208 | buf = g_malloc(BUFFSIZE); |
| 209 | |
| 210 | boundary = mimeinfo->boundary; |
| 211 | |
| 212 | if (boundary) {
|
| 213 | boundary_len = strlen(boundary); |
| 214 | |
| 215 | /* look for first boundary */
|
| 216 | while ((p = fgets(buf, BUFFSIZE, fp)) != NULL) |
| 217 | if (IS_BOUNDARY(buf, boundary, boundary_len)) break; |
| 218 | if (!p) {
|
| 219 | g_free(buf); |
| 220 | return;
|
| 221 | } |
| 222 | } else if (mimeinfo->parent && mimeinfo->parent->boundary) { |
| 223 | boundary = mimeinfo->parent->boundary; |
| 224 | boundary_len = strlen(boundary); |
| 225 | } |
| 226 | |
| 227 | if ((fpos = ftell(fp)) < 0) { |
| 228 | perror("ftell");
|
| 229 | g_free(buf); |
| 230 | return;
|
| 231 | } |
| 232 | |
| 233 | debug_print("level = %d\n", mimeinfo->level);
|
| 234 | |
| 235 | for (;;) {
|
| 236 | MimeInfo *partinfo; |
| 237 | gboolean eom = FALSE; |
| 238 | glong content_pos; |
| 239 | gboolean is_base64; |
| 240 | gint len; |
| 241 | guint b64_content_len = 0;
|
| 242 | gint b64_pad_len = 0;
|
| 243 | |
| 244 | prev_fpos = fpos; |
| 245 | debug_print("prev_fpos: %ld\n", fpos);
|
| 246 | |
| 247 | /* scan part header */
|
| 248 | if (mimeinfo->mime_type == MIME_MESSAGE_RFC822) {
|
| 249 | MimeInfo *sub; |
| 250 | |
| 251 | mimeinfo->sub = sub = procmime_scan_mime_header(fp); |
| 252 | if (!sub) break; |
| 253 | |
| 254 | debug_print("message/rfc822 part (content-type: %s)\n",
|
| 255 | sub->content_type); |
| 256 | sub->level = mimeinfo->level + 1;
|
| 257 | sub->parent = mimeinfo->parent; |
| 258 | sub->main = mimeinfo; |
| 259 | |
| 260 | partinfo = sub; |
| 261 | } else {
|
| 262 | partinfo = procmime_scan_mime_header(fp); |
| 263 | if (!partinfo) break; |
| 264 | procmime_mimeinfo_insert(mimeinfo, partinfo); |
| 265 | debug_print("content-type: %s\n",
|
| 266 | partinfo->content_type); |
| 267 | } |
| 268 | |
| 269 | /* begin content */
|
| 270 | content_pos = ftell(fp); |
| 271 | debug_print("content_pos: %ld\n", content_pos);
|
| 272 | |
| 273 | if (partinfo->mime_type == MIME_MULTIPART ||
|
| 274 | partinfo->mime_type == MIME_MESSAGE_RFC822) {
|
| 275 | if (partinfo->level < MAX_MIME_LEVEL)
|
| 276 | procmime_scan_multipart_message(partinfo, fp); |
| 277 | } |
| 278 | |
| 279 | /* look for next boundary */
|
| 280 | buf[0] = '\0'; |
| 281 | is_base64 = partinfo->encoding_type == ENC_BASE64; |
| 282 | while ((p = fgets(buf, BUFFSIZE, fp)) != NULL) { |
| 283 | if (IS_BOUNDARY(buf, boundary, boundary_len)) {
|
| 284 | if (buf[2 + boundary_len] == '-' && |
| 285 | buf[2 + boundary_len + 1] == '-') |
| 286 | eom = TRUE; |
| 287 | break;
|
| 288 | } else if (is_base64) { |
| 289 | const gchar *s;
|
| 290 | for (s = buf; *s && *s != '\r' && *s != '\n'; |
| 291 | ++s) |
| 292 | if (*s == '=') |
| 293 | ++b64_pad_len; |
| 294 | b64_content_len += s - buf; |
| 295 | } |
| 296 | } |
| 297 | if (p == NULL) { |
| 298 | /* broken MIME, or single part MIME message */
|
| 299 | buf[0] = '\0'; |
| 300 | eom = TRUE; |
| 301 | } |
| 302 | debug_print("boundary: %s\n", buf);
|
| 303 | |
| 304 | fpos = ftell(fp); |
| 305 | debug_print("fpos: %ld\n", fpos);
|
| 306 | |
| 307 | len = strlen(buf); |
| 308 | partinfo->size = fpos - prev_fpos - len; |
| 309 | if (is_base64)
|
| 310 | partinfo->content_size = |
| 311 | b64_content_len / 4 * 3 - b64_pad_len; |
| 312 | else
|
| 313 | partinfo->content_size = fpos - content_pos - len; |
| 314 | debug_print("partinfo->size: %d\n", partinfo->size);
|
| 315 | debug_print("partinfo->content_size: %d\n",
|
| 316 | partinfo->content_size); |
| 317 | if (partinfo->sub && !partinfo->sub->sub &&
|
| 318 | !partinfo->sub->children) {
|
| 319 | partinfo->sub->size = |
| 320 | fpos - partinfo->sub->fpos - strlen(buf); |
| 321 | debug_print("partinfo->sub->size: %d\n",
|
| 322 | partinfo->sub->size); |
| 323 | } |
| 324 | |
| 325 | if (mimeinfo->mime_type == MIME_MESSAGE_RFC822) {
|
| 326 | if (len > 0 && fseek(fp, fpos - len, SEEK_SET) < 0) |
| 327 | perror("fseek");
|
| 328 | break;
|
| 329 | } |
| 330 | |
| 331 | if (eom) break; |
| 332 | } |
| 333 | |
| 334 | g_free(buf); |
| 335 | } |
| 336 | |
| 337 | void procmime_scan_encoding(MimeInfo *mimeinfo, const gchar *encoding) |
| 338 | {
|
| 339 | gchar *enc; |
| 340 | |
| 341 | g_free(mimeinfo->encoding); |
| 342 | enc = mimeinfo->encoding = g_strstrip(g_strdup(encoding)); |
| 343 | |
| 344 | if (!g_ascii_strncasecmp(enc, "7bit", 4)) |
| 345 | mimeinfo->encoding_type = ENC_7BIT; |
| 346 | else if (!g_ascii_strncasecmp(enc, "8bit", 4)) |
| 347 | mimeinfo->encoding_type = ENC_8BIT; |
| 348 | else if (!g_ascii_strncasecmp(enc, "quoted-printable", 16)) |
| 349 | mimeinfo->encoding_type = ENC_QUOTED_PRINTABLE; |
| 350 | else if (!g_ascii_strncasecmp(enc, "base64", 6)) |
| 351 | mimeinfo->encoding_type = ENC_BASE64; |
| 352 | else if (!g_ascii_strncasecmp(enc, "x-uuencode", 10)) |
| 353 | mimeinfo->encoding_type = ENC_X_UUENCODE; |
| 354 | else
|
| 355 | mimeinfo->encoding_type = ENC_UNKNOWN; |
| 356 | |
| 357 | } |
| 358 | |
| 359 | void procmime_scan_content_type(MimeInfo *mimeinfo, const gchar *content_type) |
| 360 | {
|
| 361 | g_free(mimeinfo->content_type); |
| 362 | g_free(mimeinfo->charset); |
| 363 | g_free(mimeinfo->name); |
| 364 | g_free(mimeinfo->boundary); |
| 365 | mimeinfo->content_type = NULL;
|
| 366 | mimeinfo->charset = NULL;
|
| 367 | mimeinfo->name = NULL;
|
| 368 | mimeinfo->boundary = NULL;
|
| 369 | |
| 370 | procmime_scan_content_type_str(content_type, &mimeinfo->content_type, |
| 371 | &mimeinfo->charset, &mimeinfo->name, |
| 372 | &mimeinfo->boundary); |
| 373 | |
| 374 | mimeinfo->mime_type = procmime_scan_mime_type(mimeinfo->content_type); |
| 375 | if (mimeinfo->mime_type == MIME_MULTIPART && !mimeinfo->boundary)
|
| 376 | mimeinfo->mime_type = MIME_TEXT; |
| 377 | } |
| 378 | |
| 379 | typedef struct |
| 380 | {
|
| 381 | gchar *name; |
| 382 | gchar *value; |
| 383 | } MimeParam; |
| 384 | |
| 385 | typedef struct |
| 386 | {
|
| 387 | gchar *hvalue; |
| 388 | GSList *plist; |
| 389 | } MimeParams; |
| 390 | |
| 391 | static gchar *procmime_find_parameter_delimiter(const gchar *param, |
| 392 | const gchar **eq)
|
| 393 | {
|
| 394 | register const gchar *p = param; |
| 395 | gboolean quoted = FALSE; |
| 396 | const gchar *delim = NULL; |
| 397 | |
| 398 | while (*p) {
|
| 399 | if (*p == '=') |
| 400 | break;
|
| 401 | else if (*p == ';' || *p == '\r' || *p == '\n') { |
| 402 | delim = p; |
| 403 | break;
|
| 404 | } |
| 405 | ++p; |
| 406 | } |
| 407 | if (*p != '=') { |
| 408 | *eq = NULL;
|
| 409 | return (gchar *)delim;
|
| 410 | } |
| 411 | *eq = p; |
| 412 | |
| 413 | ++p; |
| 414 | while (g_ascii_isspace(*p))
|
| 415 | ++p; |
| 416 | if (*p == '"') { |
| 417 | quoted = TRUE; |
| 418 | ++p; |
| 419 | } |
| 420 | |
| 421 | while (*p) {
|
| 422 | if (quoted == TRUE) {
|
| 423 | if (*p == '"') |
| 424 | quoted = FALSE; |
| 425 | } else if (*p == ';' || *p == '\r' || *p == '\n') { |
| 426 | delim = p; |
| 427 | break;
|
| 428 | } |
| 429 | ++p; |
| 430 | } |
| 431 | |
| 432 | return (gchar *)delim;
|
| 433 | } |
| 434 | |
| 435 | static gchar *procmime_convert_value(const gchar *value, const gchar *charset) |
| 436 | {
|
| 437 | if (charset) {
|
| 438 | gchar *utf8_value; |
| 439 | |
| 440 | utf8_value = conv_codeset_strdup(value, charset, CS_INTERNAL); |
| 441 | if (utf8_value)
|
| 442 | return utf8_value;
|
| 443 | } |
| 444 | |
| 445 | return g_strdup(value);
|
| 446 | } |
| 447 | |
| 448 | static MimeParams *procmime_parse_mime_parameter(const gchar *str) |
| 449 | {
|
| 450 | ConvADType ad_type; |
| 451 | gchar *tmp_param = NULL;
|
| 452 | gchar *hvalue; |
| 453 | gchar *param, *name, *value; |
| 454 | gchar *charset = NULL, *lang = NULL; |
| 455 | const gchar *p, *delim;
|
| 456 | gint count, prev_count; |
| 457 | gchar *cont_name; |
| 458 | gchar *cont_value; |
| 459 | MimeParam *mparam; |
| 460 | MimeParams *mparams; |
| 461 | GSList *plist = NULL;
|
| 462 | |
| 463 | if ((p = strchr(str, ';'))) |
| 464 | hvalue = g_strndup(str, p - str); |
| 465 | else
|
| 466 | hvalue = g_strdup(str); |
| 467 | |
| 468 | g_strstrip(hvalue); |
| 469 | |
| 470 | mparams = g_new(MimeParams, 1);
|
| 471 | mparams->hvalue = hvalue; |
| 472 | mparams->plist = NULL;
|
| 473 | |
| 474 | if (!p)
|
| 475 | return mparams;
|
| 476 | ++p; |
| 477 | |
| 478 | /* workaround for raw-JIS filename (Eudora etc.) */
|
| 479 | ad_type = conv_get_autodetect_type(); |
| 480 | if ((ad_type == C_AD_JAPANESE ||
|
| 481 | (ad_type == C_AD_BY_LOCALE && conv_is_ja_locale())) && |
| 482 | strstr(p, "\033$") != NULL) { |
| 483 | CodeConvFunc conv_func; |
| 484 | conv_func = conv_get_code_conv_func(NULL, NULL); |
| 485 | tmp_param = conv_func(p, NULL);
|
| 486 | p = tmp_param; |
| 487 | debug_print("procmime_parse_mime_parameter(): raw-JIS header body detected: %s\n", str);
|
| 488 | } |
| 489 | |
| 490 | count = prev_count = -1;
|
| 491 | cont_name = cont_value = NULL;
|
| 492 | |
| 493 | for (;;) {
|
| 494 | gboolean encoded = FALSE; |
| 495 | gchar *begin; |
| 496 | gchar *dec_value; |
| 497 | const gchar *eq;
|
| 498 | gchar *ast = NULL;
|
| 499 | |
| 500 | while (*p == ';' || g_ascii_isspace(*p)) |
| 501 | ++p; |
| 502 | if (*p == '\0') |
| 503 | break;
|
| 504 | |
| 505 | delim = procmime_find_parameter_delimiter(p, &eq); |
| 506 | if (!eq)
|
| 507 | break;
|
| 508 | if (delim)
|
| 509 | param = g_strndup(p, delim - p); |
| 510 | else
|
| 511 | param = g_strdup(p); |
| 512 | |
| 513 | name = g_strndup(p, eq - p); |
| 514 | g_strchomp(name); |
| 515 | if (*name != '*' && (ast = strchr(name, '*'))) { |
| 516 | const gchar *next = ast + 1; |
| 517 | |
| 518 | if (*next == '\0') { |
| 519 | encoded = TRUE; |
| 520 | } else if (g_ascii_isdigit(*next)) { |
| 521 | count = atoi(next); |
| 522 | while (g_ascii_isdigit(*next))
|
| 523 | ++next; |
| 524 | if (*next == '*') |
| 525 | encoded = TRUE; |
| 526 | if (prev_count + 1 != count) { |
| 527 | g_warning("procmime_parse_mime_parameter(): invalid count: %s\n", str);
|
| 528 | g_free(name); |
| 529 | g_free(param); |
| 530 | break;
|
| 531 | } |
| 532 | } else {
|
| 533 | g_warning("procmime_parse_mime_parameter(): invalid name: %s\n", str);
|
| 534 | g_free(name); |
| 535 | g_free(param); |
| 536 | break;
|
| 537 | } |
| 538 | |
| 539 | *ast = '\0';
|
| 540 | } |
| 541 | |
| 542 | value = g_strdup(param + (eq - p) + 1);
|
| 543 | g_strstrip(value); |
| 544 | if (*value == '"') |
| 545 | extract_quote(value, '"');
|
| 546 | |
| 547 | begin = value; |
| 548 | |
| 549 | if (encoded) {
|
| 550 | gchar *sq1, *sq2; |
| 551 | |
| 552 | if ((sq1 = strchr(value, '\''))) { |
| 553 | if (sq1 > value) {
|
| 554 | if (charset)
|
| 555 | g_free(charset); |
| 556 | charset = g_strndup(value, sq1 - value); |
| 557 | } |
| 558 | if ((sq2 = strchr(sq1 + 1, '\''))) { |
| 559 | if (sq2 > sq1 + 1) { |
| 560 | if (lang)
|
| 561 | g_free(lang); |
| 562 | lang = g_strndup(sq1 + 1,
|
| 563 | sq2 - sq1 - 1);
|
| 564 | } |
| 565 | begin = sq2 + 1;
|
| 566 | } |
| 567 | } |
| 568 | } |
| 569 | |
| 570 | #define CONCAT_CONT_VALUE(s) \
|
| 571 | { \
|
| 572 | if (cont_value) { \
|
| 573 | gchar *tmp; \ |
| 574 | tmp = g_strconcat(cont_value, s, NULL); \
|
| 575 | g_free(cont_value); \ |
| 576 | cont_value = tmp; \ |
| 577 | } else \
|
| 578 | cont_value = g_strdup(s); \ |
| 579 | } |
| 580 | |
| 581 | if (count >= 0) { |
| 582 | if (count > 0 && cont_name) { |
| 583 | if (strcmp(cont_name, name) != 0) { |
| 584 | g_warning("procmime_parse_mime_parameter(): mismatch parameter name: %s\n", str);
|
| 585 | g_free(name); |
| 586 | g_free(value); |
| 587 | g_free(param); |
| 588 | break;
|
| 589 | } |
| 590 | } else
|
| 591 | cont_name = g_strdup(name); |
| 592 | |
| 593 | if (encoded) {
|
| 594 | dec_value = g_malloc(strlen(begin) + 1);
|
| 595 | decode_xdigit_encoded_str(dec_value, begin); |
| 596 | CONCAT_CONT_VALUE(dec_value); |
| 597 | g_free(dec_value); |
| 598 | } else {
|
| 599 | CONCAT_CONT_VALUE(begin); |
| 600 | } |
| 601 | } |
| 602 | |
| 603 | #undef CONCAT_CONT_VALUE
|
| 604 | |
| 605 | if (count == -1 && cont_name && cont_value) { |
| 606 | mparam = g_new(MimeParam, 1);
|
| 607 | mparam->name = cont_name; |
| 608 | cont_name = NULL;
|
| 609 | mparam->value = procmime_convert_value |
| 610 | (cont_value, charset); |
| 611 | g_free(cont_value); |
| 612 | cont_value = NULL;
|
| 613 | plist = g_slist_prepend(plist, mparam); |
| 614 | } |
| 615 | |
| 616 | if (count == -1) { |
| 617 | mparam = g_new(MimeParam, 1);
|
| 618 | mparam->name = name; |
| 619 | if (encoded) {
|
| 620 | dec_value = g_malloc(strlen(begin) + 1);
|
| 621 | decode_xdigit_encoded_str(dec_value, begin); |
| 622 | mparam->value = procmime_convert_value |
| 623 | (dec_value, charset); |
| 624 | g_free(dec_value); |
| 625 | } else {
|
| 626 | if (!ast &&
|
| 627 | (!g_ascii_strcasecmp(name, "name") ||
|
| 628 | !g_ascii_strcasecmp(name, "filename")))
|
| 629 | mparam->value = |
| 630 | conv_unmime_header(begin, NULL);
|
| 631 | else
|
| 632 | mparam->value = g_strdup(begin); |
| 633 | } |
| 634 | name = NULL;
|
| 635 | plist = g_slist_prepend(plist, mparam); |
| 636 | } |
| 637 | |
| 638 | g_free(name); |
| 639 | g_free(value); |
| 640 | g_free(param); |
| 641 | |
| 642 | prev_count = count; |
| 643 | count = -1;
|
| 644 | |
| 645 | if (delim)
|
| 646 | p = delim + 1;
|
| 647 | else
|
| 648 | break;
|
| 649 | } |
| 650 | |
| 651 | if (cont_name && cont_value) {
|
| 652 | mparam = g_new(MimeParam, 1);
|
| 653 | mparam->name = cont_name; |
| 654 | cont_name = NULL;
|
| 655 | mparam->value = procmime_convert_value(cont_value, charset); |
| 656 | plist = g_slist_prepend(plist, mparam); |
| 657 | } |
| 658 | |
| 659 | g_free(cont_name); |
| 660 | g_free(cont_value); |
| 661 | g_free(lang); |
| 662 | g_free(charset); |
| 663 | if (tmp_param)
|
| 664 | g_free(tmp_param); |
| 665 | |
| 666 | plist = g_slist_reverse(plist); |
| 667 | mparams->plist = plist; |
| 668 | |
| 669 | return mparams;
|
| 670 | } |
| 671 | |
| 672 | static void procmime_mime_params_free(MimeParams *mparams) |
| 673 | {
|
| 674 | GSList *cur; |
| 675 | |
| 676 | if (!mparams)
|
| 677 | return;
|
| 678 | |
| 679 | g_free(mparams->hvalue); |
| 680 | for (cur = mparams->plist; cur != NULL; cur = cur->next) { |
| 681 | MimeParam *mparam = (MimeParam *)cur->data; |
| 682 | g_free(mparam->name); |
| 683 | g_free(mparam->value); |
| 684 | g_free(mparam); |
| 685 | } |
| 686 | g_slist_free(mparams->plist); |
| 687 | g_free(mparams); |
| 688 | } |
| 689 | |
| 690 | void procmime_scan_content_type_str(const gchar *content_type, |
| 691 | gchar **mime_type, gchar **charset, |
| 692 | gchar **name, gchar **boundary) |
| 693 | {
|
| 694 | MimeParams *mparams; |
| 695 | GSList *cur; |
| 696 | |
| 697 | mparams = procmime_parse_mime_parameter(content_type); |
| 698 | |
| 699 | if (mime_type)
|
| 700 | *mime_type = g_strdup(mparams->hvalue); |
| 701 | |
| 702 | for (cur = mparams->plist; cur != NULL; cur = cur->next) { |
| 703 | MimeParam *param = (MimeParam *)cur->data; |
| 704 | if (charset && !g_ascii_strcasecmp(param->name, "charset")) { |
| 705 | *charset = g_strdup(param->value); |
| 706 | eliminate_parenthesis(*charset, '(', ')'); |
| 707 | g_strstrip(*charset); |
| 708 | charset = NULL;
|
| 709 | } else if (name && !g_ascii_strcasecmp(param->name, "name")) { |
| 710 | *name = g_strdup(param->value); |
| 711 | name = NULL;
|
| 712 | } else if (boundary && |
| 713 | !g_ascii_strcasecmp(param->name, "boundary")) {
|
| 714 | *boundary = g_strdup(param->value); |
| 715 | boundary = NULL;
|
| 716 | } |
| 717 | } |
| 718 | |
| 719 | procmime_mime_params_free(mparams); |
| 720 | } |
| 721 | |
| 722 | void procmime_scan_content_type_partial(const gchar *content_type, |
| 723 | gint *total, gchar **part_id, |
| 724 | gint *number) |
| 725 | {
|
| 726 | MimeParams *mparams; |
| 727 | GSList *cur; |
| 728 | gchar *id_str = NULL;
|
| 729 | gint t = 0, n = 0; |
| 730 | |
| 731 | *total = 0;
|
| 732 | *part_id = NULL;
|
| 733 | *number = 0;
|
| 734 | |
| 735 | mparams = procmime_parse_mime_parameter(content_type); |
| 736 | |
| 737 | if (!mparams->hvalue ||
|
| 738 | g_ascii_strcasecmp(mparams->hvalue, "message/partial") != 0) { |
| 739 | procmime_mime_params_free(mparams); |
| 740 | return;
|
| 741 | } |
| 742 | |
| 743 | for (cur = mparams->plist; cur != NULL; cur = cur->next) { |
| 744 | MimeParam *param = (MimeParam *)cur->data; |
| 745 | if (!g_ascii_strcasecmp(param->name, "total")) { |
| 746 | t = atoi(param->value); |
| 747 | } else if (!id_str && !g_ascii_strcasecmp(param->name, "id")) { |
| 748 | id_str = g_strdup(param->value); |
| 749 | } else if (!g_ascii_strcasecmp(param->name, "number")) { |
| 750 | n = atoi(param->value); |
| 751 | } |
| 752 | } |
| 753 | |
| 754 | procmime_mime_params_free(mparams); |
| 755 | |
| 756 | if (n > 0 && (t == 0 || t >= n) && id_str) { |
| 757 | *total = t; |
| 758 | *part_id = id_str; |
| 759 | *number = n; |
| 760 | } else {
|
| 761 | g_free(id_str); |
| 762 | } |
| 763 | } |
| 764 | |
| 765 | void procmime_scan_content_disposition(MimeInfo *mimeinfo,
|
| 766 | const gchar *content_disposition)
|
| 767 | {
|
| 768 | MimeParams *mparams; |
| 769 | GSList *cur; |
| 770 | |
| 771 | mparams = procmime_parse_mime_parameter(content_disposition); |
| 772 | |
| 773 | mimeinfo->content_disposition = g_strdup(mparams->hvalue); |
| 774 | |
| 775 | for (cur = mparams->plist; cur != NULL; cur = cur->next) { |
| 776 | MimeParam *param = (MimeParam *)cur->data; |
| 777 | if (!g_ascii_strcasecmp(param->name, "filename")) { |
| 778 | mimeinfo->filename = g_strdup(param->value); |
| 779 | break;
|
| 780 | } |
| 781 | } |
| 782 | |
| 783 | procmime_mime_params_free(mparams); |
| 784 | } |
| 785 | |
| 786 | enum
|
| 787 | {
|
| 788 | H_CONTENT_TRANSFER_ENCODING = 0,
|
| 789 | H_CONTENT_TYPE = 1,
|
| 790 | H_CONTENT_DISPOSITION = 2
|
| 791 | }; |
| 792 | |
| 793 | MimeInfo *procmime_scan_mime_header(FILE *fp) |
| 794 | {
|
| 795 | static HeaderEntry hentry[] = {{"Content-Transfer-Encoding:", |
| 796 | NULL, FALSE},
|
| 797 | {"Content-Type:", NULL, TRUE},
|
| 798 | {"Content-Disposition:",
|
| 799 | NULL, TRUE},
|
| 800 | {NULL, NULL, FALSE}};
|
| 801 | gchar buf[BUFFSIZE]; |
| 802 | gint hnum; |
| 803 | HeaderEntry *hp; |
| 804 | MimeInfo *mimeinfo; |
| 805 | |
| 806 | g_return_val_if_fail(fp != NULL, NULL); |
| 807 | |
| 808 | mimeinfo = procmime_mimeinfo_new(); |
| 809 | mimeinfo->mime_type = MIME_TEXT; |
| 810 | mimeinfo->encoding_type = ENC_7BIT; |
| 811 | mimeinfo->fpos = ftell(fp); |
| 812 | |
| 813 | while ((hnum = procheader_get_one_field(buf, sizeof(buf), fp, hentry)) |
| 814 | != -1) {
|
| 815 | hp = hentry + hnum; |
| 816 | |
| 817 | if (H_CONTENT_TRANSFER_ENCODING == hnum) {
|
| 818 | procmime_scan_encoding |
| 819 | (mimeinfo, buf + strlen(hp->name)); |
| 820 | } else if (H_CONTENT_TYPE == hnum) { |
| 821 | procmime_scan_content_type |
| 822 | (mimeinfo, buf + strlen(hp->name)); |
| 823 | } else if (H_CONTENT_DISPOSITION == hnum) { |
| 824 | procmime_scan_content_disposition |
| 825 | (mimeinfo, buf + strlen(hp->name)); |
| 826 | } |
| 827 | } |
| 828 | |
| 829 | if (mimeinfo->mime_type == MIME_APPLICATION_OCTET_STREAM &&
|
| 830 | (mimeinfo->filename || mimeinfo->name)) {
|
| 831 | const gchar *type;
|
| 832 | type = procmime_get_mime_type |
| 833 | (mimeinfo->filename ? mimeinfo->filename |
| 834 | : mimeinfo->name); |
| 835 | if (type)
|
| 836 | mimeinfo->mime_type = procmime_scan_mime_type(type); |
| 837 | } |
| 838 | |
| 839 | if (!mimeinfo->content_type)
|
| 840 | mimeinfo->content_type = g_strdup("text/plain");
|
| 841 | |
| 842 | return mimeinfo;
|
| 843 | } |
| 844 | |
| 845 | static gint procmime_normalize_lbreak(FILE *infp, FILE *outfp)
|
| 846 | {
|
| 847 | gchar buf[BUFFSIZE]; |
| 848 | gint len; |
| 849 | |
| 850 | g_return_val_if_fail(infp != NULL, -1); |
| 851 | g_return_val_if_fail(outfp != NULL, -1); |
| 852 | |
| 853 | while (fgets(buf, sizeof(buf), infp) != NULL) { |
| 854 | len = strlen(buf); |
| 855 | if (len == sizeof(buf) - 1 && buf[len - 1] != '\n') { |
| 856 | if (buf[len - 1] == '\r') { |
| 857 | ungetc('\r', infp);
|
| 858 | buf[len - 1] = '\0'; |
| 859 | } |
| 860 | fputs(buf, outfp); |
| 861 | continue;
|
| 862 | } |
| 863 | #ifdef G_OS_WIN32
|
| 864 | strretchomp(buf); |
| 865 | fputs(buf, outfp); |
| 866 | fputs("\r\n", outfp);
|
| 867 | #else
|
| 868 | strcrchomp(buf); |
| 869 | fputs(buf, outfp); |
| 870 | #endif
|
| 871 | } |
| 872 | |
| 873 | return 0; |
| 874 | } |
| 875 | |
| 876 | FILE *procmime_decode_content(FILE *outfp, FILE *infp, MimeInfo *mimeinfo) |
| 877 | {
|
| 878 | gchar buf[BUFFSIZE]; |
| 879 | gchar *boundary = NULL;
|
| 880 | gint boundary_len = 0;
|
| 881 | gboolean tmp_file = FALSE; |
| 882 | gboolean normalize_lbreak = FALSE; |
| 883 | ContentType content_type; |
| 884 | |
| 885 | g_return_val_if_fail(infp != NULL, NULL); |
| 886 | g_return_val_if_fail(mimeinfo != NULL, NULL); |
| 887 | |
| 888 | if (!outfp) {
|
| 889 | outfp = my_tmpfile(); |
| 890 | if (!outfp) {
|
| 891 | perror("tmpfile");
|
| 892 | return NULL; |
| 893 | } |
| 894 | tmp_file = TRUE; |
| 895 | } |
| 896 | |
| 897 | if (mimeinfo->parent && mimeinfo->parent->boundary) {
|
| 898 | boundary = mimeinfo->parent->boundary; |
| 899 | boundary_len = strlen(boundary); |
| 900 | } |
| 901 | |
| 902 | content_type = procmime_scan_mime_type(mimeinfo->content_type); |
| 903 | if (content_type == MIME_TEXT ||
|
| 904 | content_type == MIME_TEXT_HTML) {
|
| 905 | normalize_lbreak = TRUE; |
| 906 | } |
| 907 | |
| 908 | if (mimeinfo->encoding_type == ENC_QUOTED_PRINTABLE) {
|
| 909 | FILE *tmpfp = outfp; |
| 910 | gchar prev_empty_line[3] = ""; |
| 911 | |
| 912 | if (normalize_lbreak) {
|
| 913 | tmpfp = my_tmpfile(); |
| 914 | if (!tmpfp) {
|
| 915 | perror("tmpfile");
|
| 916 | if (tmp_file) fclose(outfp);
|
| 917 | return NULL; |
| 918 | } |
| 919 | } |
| 920 | |
| 921 | while (fgets(buf, sizeof(buf), infp) != NULL && |
| 922 | (!boundary || |
| 923 | !IS_BOUNDARY(buf, boundary, boundary_len))) {
|
| 924 | gint len; |
| 925 | |
| 926 | if (prev_empty_line[0]) { |
| 927 | fputs(prev_empty_line, tmpfp); |
| 928 | prev_empty_line[0] = '\0'; |
| 929 | } |
| 930 | |
| 931 | if (buf[0] == '\n' || |
| 932 | (buf[0] == '\r' && buf[1] == '\n')) |
| 933 | strcpy(prev_empty_line, buf); |
| 934 | else {
|
| 935 | len = qp_decode_line(buf); |
| 936 | fwrite(buf, len, 1, tmpfp);
|
| 937 | } |
| 938 | } |
| 939 | if (!boundary && prev_empty_line[0]) |
| 940 | fputs(prev_empty_line, tmpfp); |
| 941 | |
| 942 | if (normalize_lbreak) {
|
| 943 | if (fflush(tmpfp) == EOF) { |
| 944 | perror("fflush");
|
| 945 | fclose(tmpfp); |
| 946 | if (tmp_file) fclose(outfp);
|
| 947 | return NULL; |
| 948 | } |
| 949 | rewind(tmpfp); |
| 950 | procmime_normalize_lbreak(tmpfp, outfp); |
| 951 | fclose(tmpfp); |
| 952 | } |
| 953 | } else if (mimeinfo->encoding_type == ENC_BASE64) { |
| 954 | gchar outbuf[BUFFSIZE]; |
| 955 | gint len; |
| 956 | Base64Decoder *decoder; |
| 957 | FILE *tmpfp = outfp; |
| 958 | |
| 959 | if (normalize_lbreak) {
|
| 960 | tmpfp = my_tmpfile(); |
| 961 | if (!tmpfp) {
|
| 962 | perror("tmpfile");
|
| 963 | if (tmp_file) fclose(outfp);
|
| 964 | return NULL; |
| 965 | } |
| 966 | } |
| 967 | |
| 968 | decoder = base64_decoder_new(); |
| 969 | while (fgets(buf, sizeof(buf), infp) != NULL && |
| 970 | (!boundary || |
| 971 | !IS_BOUNDARY(buf, boundary, boundary_len))) {
|
| 972 | len = base64_decoder_decode(decoder, buf, |
| 973 | (guchar *)outbuf); |
| 974 | if (len < 0) { |
| 975 | g_warning("Bad BASE64 content\n");
|
| 976 | break;
|
| 977 | } |
| 978 | fwrite(outbuf, sizeof(gchar), len, tmpfp);
|
| 979 | } |
| 980 | base64_decoder_free(decoder); |
| 981 | |
| 982 | if (normalize_lbreak) {
|
| 983 | if (fflush(tmpfp) == EOF) { |
| 984 | perror("fflush");
|
| 985 | fclose(tmpfp); |
| 986 | if (tmp_file) fclose(outfp);
|
| 987 | return NULL; |
| 988 | } |
| 989 | rewind(tmpfp); |
| 990 | procmime_normalize_lbreak(tmpfp, outfp); |
| 991 | fclose(tmpfp); |
| 992 | } |
| 993 | } else if (mimeinfo->encoding_type == ENC_X_UUENCODE) { |
| 994 | gchar outbuf[BUFFSIZE]; |
| 995 | gint len; |
| 996 | gboolean flag = FALSE; |
| 997 | |
| 998 | while (fgets(buf, sizeof(buf), infp) != NULL && |
| 999 | (!boundary || |
| 1000 | !IS_BOUNDARY(buf, boundary, boundary_len))) {
|
| 1001 | if(!flag && strncmp(buf,"begin ", 6)) continue; |
| 1002 | |
| 1003 | if (flag) {
|
| 1004 | len = fromuutobits(outbuf, buf); |
| 1005 | if (len <= 0) { |
| 1006 | if (len < 0) |
| 1007 | g_warning("Bad UUENCODE content(%d)\n", len);
|
| 1008 | break;
|
| 1009 | } |
| 1010 | fwrite(outbuf, sizeof(gchar), len, outfp);
|
| 1011 | } else
|
| 1012 | flag = TRUE; |
| 1013 | } |
| 1014 | } else {
|
| 1015 | gchar prev_empty_line[3] = ""; |
| 1016 | gint len; |
| 1017 | gboolean cont_line = FALSE; |
| 1018 | |
| 1019 | while (fgets(buf, sizeof(buf), infp) != NULL && |
| 1020 | (!boundary || |
| 1021 | !IS_BOUNDARY(buf, boundary, boundary_len))) {
|
| 1022 | if (prev_empty_line[0]) { |
| 1023 | fputs(prev_empty_line, outfp); |
| 1024 | prev_empty_line[0] = '\0'; |
| 1025 | } |
| 1026 | |
| 1027 | len = strlen(buf); |
| 1028 | if (len == sizeof(buf) - 1 && |
| 1029 | buf[len - 1] != '\n') { |
| 1030 | if (buf[len - 1] == '\r') { |
| 1031 | ungetc('\r', infp);
|
| 1032 | buf[len - 1] = '\0'; |
| 1033 | } |
| 1034 | fputs(buf, outfp); |
| 1035 | cont_line = TRUE; |
| 1036 | continue;
|
| 1037 | } |
| 1038 | |
| 1039 | if (normalize_lbreak) {
|
| 1040 | #ifdef G_OS_WIN32
|
| 1041 | strretchomp(buf); |
| 1042 | if (!cont_line && buf[0] == '\0') |
| 1043 | strcpy(prev_empty_line, "\r\n");
|
| 1044 | else {
|
| 1045 | fputs(buf, outfp); |
| 1046 | fputs("\r\n", outfp);
|
| 1047 | } |
| 1048 | #else
|
| 1049 | strcrchomp(buf); |
| 1050 | if (!cont_line && buf[0] == '\n') |
| 1051 | strcpy(prev_empty_line, "\n");
|
| 1052 | else
|
| 1053 | fputs(buf, outfp); |
| 1054 | #endif
|
| 1055 | } else {
|
| 1056 | if (!cont_line &&
|
| 1057 | (buf[0] == '\n' || |
| 1058 | (buf[0] == '\r' && buf[1] == '\n'))) |
| 1059 | strcpy(prev_empty_line, buf); |
| 1060 | else
|
| 1061 | fputs(buf, outfp); |
| 1062 | } |
| 1063 | |
| 1064 | cont_line = FALSE; |
| 1065 | } |
| 1066 | if (!boundary && prev_empty_line[0]) |
| 1067 | fputs(prev_empty_line, outfp); |
| 1068 | } |
| 1069 | |
| 1070 | if (fflush(outfp) == EOF) |
| 1071 | perror("fflush");
|
| 1072 | if (ferror(outfp) != 0) { |
| 1073 | g_warning("procmime_decode_content(): Can't write to temporary file\n");
|
| 1074 | if (tmp_file) fclose(outfp);
|
| 1075 | return NULL; |
| 1076 | } |
| 1077 | |
| 1078 | if (tmp_file) rewind(outfp);
|
| 1079 | return outfp;
|
| 1080 | } |
| 1081 | |
| 1082 | gint procmime_get_part(const gchar *outfile, const gchar *infile, |
| 1083 | MimeInfo *mimeinfo) |
| 1084 | {
|
| 1085 | FILE *infp; |
| 1086 | gint ret; |
| 1087 | |
| 1088 | g_return_val_if_fail(outfile != NULL, -1); |
| 1089 | g_return_val_if_fail(infile != NULL, -1); |
| 1090 | g_return_val_if_fail(mimeinfo != NULL, -1); |
| 1091 | |
| 1092 | if ((infp = g_fopen(infile, "rb")) == NULL) { |
| 1093 | FILE_OP_ERROR(infile, "fopen");
|
| 1094 | return -1; |
| 1095 | } |
| 1096 | ret = procmime_get_part_fp(outfile, infp, mimeinfo); |
| 1097 | fclose(infp); |
| 1098 | |
| 1099 | return ret;
|
| 1100 | } |
| 1101 | |
| 1102 | gint procmime_get_part_fp(const gchar *outfile, FILE *infp, MimeInfo *mimeinfo)
|
| 1103 | {
|
| 1104 | FILE *outfp; |
| 1105 | gchar buf[BUFFSIZE]; |
| 1106 | |
| 1107 | g_return_val_if_fail(outfile != NULL, -1); |
| 1108 | g_return_val_if_fail(infp != NULL, -1); |
| 1109 | g_return_val_if_fail(mimeinfo != NULL, -1); |
| 1110 | |
| 1111 | if (fseek(infp, mimeinfo->fpos, SEEK_SET) < 0) { |
| 1112 | FILE_OP_ERROR("procmime_get_part_fp()", "fseek"); |
| 1113 | return -1; |
| 1114 | } |
| 1115 | if ((outfp = g_fopen(outfile, "wb")) == NULL) { |
| 1116 | FILE_OP_ERROR(outfile, "fopen");
|
| 1117 | return -1; |
| 1118 | } |
| 1119 | |
| 1120 | while (fgets(buf, sizeof(buf), infp) != NULL) |
| 1121 | if (buf[0] == '\r' || buf[0] == '\n') break; |
| 1122 | |
| 1123 | if (procmime_decode_content(outfp, infp, mimeinfo) == NULL) { |
| 1124 | fclose(outfp); |
| 1125 | g_unlink(outfile); |
| 1126 | return -1; |
| 1127 | } |
| 1128 | |
| 1129 | if (fclose(outfp) == EOF) { |
| 1130 | FILE_OP_ERROR(outfile, "fclose");
|
| 1131 | g_unlink(outfile); |
| 1132 | return -1; |
| 1133 | } |
| 1134 | |
| 1135 | return 0; |
| 1136 | } |
| 1137 | |
| 1138 | FILE *procmime_get_part_fp_fp(FILE *outfp, FILE *infp, MimeInfo *mimeinfo) |
| 1139 | {
|
| 1140 | gchar buf[BUFFSIZE]; |
| 1141 | |
| 1142 | g_return_val_if_fail(infp != NULL, NULL); |
| 1143 | g_return_val_if_fail(mimeinfo != NULL, NULL); |
| 1144 | |
| 1145 | if (fseek(infp, mimeinfo->fpos, SEEK_SET) < 0) { |
| 1146 | FILE_OP_ERROR("procmime_get_part_fp()", "fseek"); |
| 1147 | return NULL; |
| 1148 | } |
| 1149 | |
| 1150 | while (fgets(buf, sizeof(buf), infp) != NULL) |
| 1151 | if (buf[0] == '\r' || buf[0] == '\n') break; |
| 1152 | |
| 1153 | if ((outfp = procmime_decode_content(outfp, infp, mimeinfo)) == NULL) { |
| 1154 | return NULL; |
| 1155 | } |
| 1156 | |
| 1157 | return outfp;
|
| 1158 | } |
| 1159 | |
| 1160 | gint procmime_get_all_parts(const gchar *dir, const gchar *infile, |
| 1161 | MimeInfo *mimeinfo) |
| 1162 | {
|
| 1163 | FILE *fp; |
| 1164 | MimeInfo *partinfo; |
| 1165 | gchar *base, *filename; |
| 1166 | |
| 1167 | g_return_val_if_fail(dir != NULL, -1); |
| 1168 | g_return_val_if_fail(infile != NULL, -1); |
| 1169 | g_return_val_if_fail(mimeinfo != NULL, -1); |
| 1170 | |
| 1171 | if (!is_dir_exist(dir)) {
|
| 1172 | g_warning("%s: directory not exist.\n", dir);
|
| 1173 | return -1; |
| 1174 | } |
| 1175 | |
| 1176 | if ((fp = g_fopen(infile, "rb")) == NULL) { |
| 1177 | FILE_OP_ERROR(infile, "fopen");
|
| 1178 | return -1; |
| 1179 | } |
| 1180 | |
| 1181 | for (partinfo = mimeinfo; partinfo != NULL; |
| 1182 | partinfo = procmime_mimeinfo_next(partinfo)) {
|
| 1183 | if (partinfo->filename || partinfo->name) {
|
| 1184 | gint count = 1;
|
| 1185 | |
| 1186 | base = procmime_get_part_file_name(partinfo); |
| 1187 | filename = g_strconcat(dir, G_DIR_SEPARATOR_S, base, |
| 1188 | NULL);
|
| 1189 | |
| 1190 | while (is_file_entry_exist(filename)) {
|
| 1191 | gchar *base_alt; |
| 1192 | |
| 1193 | base_alt = get_alt_filename(base, count++); |
| 1194 | g_free(filename); |
| 1195 | filename = g_strconcat |
| 1196 | (dir, G_DIR_SEPARATOR_S, base_alt, |
| 1197 | NULL);
|
| 1198 | g_free(base_alt); |
| 1199 | } |
| 1200 | |
| 1201 | procmime_get_part_fp(filename, fp, partinfo); |
| 1202 | |
| 1203 | g_free(filename); |
| 1204 | g_free(base); |
| 1205 | } |
| 1206 | } |
| 1207 | |
| 1208 | fclose(fp); |
| 1209 | |
| 1210 | return 0; |
| 1211 | } |
| 1212 | |
| 1213 | FILE *procmime_get_text_content(MimeInfo *mimeinfo, FILE *infp, |
| 1214 | const gchar *encoding)
|
| 1215 | {
|
| 1216 | FILE *tmpfp, *outfp; |
| 1217 | const gchar *src_encoding;
|
| 1218 | gboolean conv_fail = FALSE; |
| 1219 | gchar buf[BUFFSIZE]; |
| 1220 | |
| 1221 | g_return_val_if_fail(mimeinfo != NULL, NULL); |
| 1222 | g_return_val_if_fail(infp != NULL, NULL); |
| 1223 | g_return_val_if_fail(mimeinfo->mime_type == MIME_TEXT || |
| 1224 | mimeinfo->mime_type == MIME_TEXT_HTML, NULL);
|
| 1225 | |
| 1226 | if (fseek(infp, mimeinfo->fpos, SEEK_SET) < 0) { |
| 1227 | perror("fseek");
|
| 1228 | return NULL; |
| 1229 | } |
| 1230 | |
| 1231 | while (fgets(buf, sizeof(buf), infp) != NULL) |
| 1232 | if (buf[0] == '\r' || buf[0] == '\n') break; |
| 1233 | |
| 1234 | tmpfp = procmime_decode_content(NULL, infp, mimeinfo);
|
| 1235 | if (!tmpfp)
|
| 1236 | return NULL; |
| 1237 | |
| 1238 | if ((outfp = my_tmpfile()) == NULL) { |
| 1239 | perror("tmpfile");
|
| 1240 | fclose(tmpfp); |
| 1241 | return NULL; |
| 1242 | } |
| 1243 | |
| 1244 | src_encoding = mimeinfo->charset ? mimeinfo->charset : NULL;
|
| 1245 | |
| 1246 | if (mimeinfo->mime_type == MIME_TEXT) {
|
| 1247 | while (fgets(buf, sizeof(buf), tmpfp) != NULL) { |
| 1248 | gchar *str; |
| 1249 | |
| 1250 | str = conv_codeset_strdup(buf, src_encoding, encoding); |
| 1251 | if (str) {
|
| 1252 | fputs(str, outfp); |
| 1253 | g_free(str); |
| 1254 | } else {
|
| 1255 | conv_fail = TRUE; |
| 1256 | fputs(buf, outfp); |
| 1257 | } |
| 1258 | } |
| 1259 | } else if (mimeinfo->mime_type == MIME_TEXT_HTML) { |
| 1260 | HTMLParser *parser; |
| 1261 | CodeConverter *conv; |
| 1262 | const gchar *str;
|
| 1263 | |
| 1264 | conv = conv_code_converter_new(src_encoding, encoding); |
| 1265 | parser = html_parser_new(tmpfp, conv); |
| 1266 | while ((str = html_parse(parser)) != NULL) { |
| 1267 | fputs(str, outfp); |
| 1268 | } |
| 1269 | html_parser_destroy(parser); |
| 1270 | conv_code_converter_destroy(conv); |
| 1271 | } |
| 1272 | |
| 1273 | if (conv_fail)
|
| 1274 | g_warning(_("procmime_get_text_content(): Code conversion failed.\n"));
|
| 1275 | |
| 1276 | fclose(tmpfp); |
| 1277 | if (fflush(outfp) == EOF) { |
| 1278 | perror("fflush");
|
| 1279 | fclose(outfp); |
| 1280 | return NULL; |
| 1281 | } |
| 1282 | rewind(outfp); |
| 1283 | |
| 1284 | return outfp;
|
| 1285 | } |
| 1286 | |
| 1287 | /* search the first text part of (multipart) MIME message,
|
| 1288 | decode, convert it and output to outfp. */ |
| 1289 | FILE *procmime_get_first_text_content(MsgInfo *msginfo, const gchar *encoding)
|
| 1290 | {
|
| 1291 | FILE *infp, *outfp = NULL;
|
| 1292 | MimeInfo *mimeinfo, *partinfo; |
| 1293 | |
| 1294 | g_return_val_if_fail(msginfo != NULL, NULL); |
| 1295 | |
| 1296 | mimeinfo = procmime_scan_message(msginfo); |
| 1297 | if (!mimeinfo) return NULL; |
| 1298 | |
| 1299 | if ((infp = procmsg_open_message(msginfo)) == NULL) { |
| 1300 | procmime_mimeinfo_free_all(mimeinfo); |
| 1301 | return NULL; |
| 1302 | } |
| 1303 | |
| 1304 | partinfo = mimeinfo; |
| 1305 | while (partinfo && partinfo->mime_type != MIME_TEXT)
|
| 1306 | partinfo = procmime_mimeinfo_next(partinfo); |
| 1307 | if (!partinfo) {
|
| 1308 | partinfo = mimeinfo; |
| 1309 | while (partinfo && partinfo->mime_type != MIME_TEXT_HTML)
|
| 1310 | partinfo = procmime_mimeinfo_next(partinfo); |
| 1311 | } |
| 1312 | |
| 1313 | if (partinfo)
|
| 1314 | outfp = procmime_get_text_content(partinfo, infp, encoding); |
| 1315 | |
| 1316 | fclose(infp); |
| 1317 | procmime_mimeinfo_free_all(mimeinfo); |
| 1318 | |
| 1319 | return outfp;
|
| 1320 | } |
| 1321 | |
| 1322 | gboolean procmime_find_string_part(MimeInfo *mimeinfo, const gchar *filename,
|
| 1323 | const gchar *str, StrFindFunc find_func)
|
| 1324 | {
|
| 1325 | |
| 1326 | FILE *infp, *outfp; |
| 1327 | gchar buf[BUFFSIZE]; |
| 1328 | |
| 1329 | g_return_val_if_fail(mimeinfo != NULL, FALSE);
|
| 1330 | g_return_val_if_fail(mimeinfo->mime_type == MIME_TEXT || |
| 1331 | mimeinfo->mime_type == MIME_TEXT_HTML, FALSE); |
| 1332 | g_return_val_if_fail(str != NULL, FALSE);
|
| 1333 | g_return_val_if_fail(find_func != NULL, FALSE);
|
| 1334 | |
| 1335 | if ((infp = g_fopen(filename, "rb")) == NULL) { |
| 1336 | FILE_OP_ERROR(filename, "fopen");
|
| 1337 | return FALSE;
|
| 1338 | } |
| 1339 | |
| 1340 | outfp = procmime_get_text_content(mimeinfo, infp, NULL);
|
| 1341 | fclose(infp); |
| 1342 | |
| 1343 | if (!outfp)
|
| 1344 | return FALSE;
|
| 1345 | |
| 1346 | while (fgets(buf, sizeof(buf), outfp) != NULL) { |
| 1347 | strretchomp(buf); |
| 1348 | if (find_func(buf, str)) {
|
| 1349 | fclose(outfp); |
| 1350 | return TRUE;
|
| 1351 | } |
| 1352 | } |
| 1353 | |
| 1354 | fclose(outfp); |
| 1355 | |
| 1356 | return FALSE;
|
| 1357 | } |
| 1358 | |
| 1359 | gboolean procmime_find_string(MsgInfo *msginfo, const gchar *str,
|
| 1360 | StrFindFunc find_func) |
| 1361 | {
|
| 1362 | MimeInfo *mimeinfo; |
| 1363 | MimeInfo *partinfo; |
| 1364 | gchar *filename; |
| 1365 | gboolean found = FALSE; |
| 1366 | |
| 1367 | g_return_val_if_fail(msginfo != NULL, FALSE);
|
| 1368 | g_return_val_if_fail(str != NULL, FALSE);
|
| 1369 | g_return_val_if_fail(find_func != NULL, FALSE);
|
| 1370 | |
| 1371 | filename = procmsg_get_message_file(msginfo); |
| 1372 | if (!filename) return FALSE; |
| 1373 | mimeinfo = procmime_scan_message(msginfo); |
| 1374 | |
| 1375 | for (partinfo = mimeinfo; partinfo != NULL; |
| 1376 | partinfo = procmime_mimeinfo_next(partinfo)) {
|
| 1377 | if (partinfo->mime_type == MIME_TEXT ||
|
| 1378 | partinfo->mime_type == MIME_TEXT_HTML) {
|
| 1379 | if (procmime_find_string_part
|
| 1380 | (partinfo, filename, str, find_func) == TRUE) {
|
| 1381 | found = TRUE; |
| 1382 | break;
|
| 1383 | } |
| 1384 | } |
| 1385 | } |
| 1386 | |
| 1387 | procmime_mimeinfo_free_all(mimeinfo); |
| 1388 | g_free(filename); |
| 1389 | |
| 1390 | return found;
|
| 1391 | } |
| 1392 | |
| 1393 | gchar *procmime_get_part_file_name(MimeInfo *mimeinfo) |
| 1394 | {
|
| 1395 | gchar *base; |
| 1396 | const gchar *base_;
|
| 1397 | |
| 1398 | base_ = mimeinfo->filename ? mimeinfo->filename |
| 1399 | : mimeinfo->name ? mimeinfo->name : "mimetmp";
|
| 1400 | base_ = g_basename(base_); |
| 1401 | if (*base_ == '\0') base_ = "mimetmp"; |
| 1402 | base = conv_filename_from_utf8(base_); |
| 1403 | subst_for_filename(base); |
| 1404 | |
| 1405 | return base;
|
| 1406 | } |
| 1407 | |
| 1408 | gchar *procmime_get_tmp_file_name(MimeInfo *mimeinfo) |
| 1409 | {
|
| 1410 | static guint32 id = 0; |
| 1411 | gchar *base; |
| 1412 | gchar *filename; |
| 1413 | gchar f_prefix[10];
|
| 1414 | |
| 1415 | g_return_val_if_fail(mimeinfo != NULL, NULL); |
| 1416 | |
| 1417 | g_snprintf(f_prefix, sizeof(f_prefix), "%08x.", id++); |
| 1418 | |
| 1419 | if (MIME_TEXT_HTML == mimeinfo->mime_type)
|
| 1420 | base = g_strdup("mimetmp.html");
|
| 1421 | else
|
| 1422 | base = procmime_get_part_file_name(mimeinfo); |
| 1423 | |
| 1424 | filename = g_strconcat(get_mime_tmp_dir(), G_DIR_SEPARATOR_S, |
| 1425 | f_prefix, base, NULL);
|
| 1426 | |
| 1427 | g_free(base); |
| 1428 | |
| 1429 | return filename;
|
| 1430 | } |
| 1431 | |
| 1432 | ContentType procmime_scan_mime_type(const gchar *mime_type)
|
| 1433 | {
|
| 1434 | ContentType type; |
| 1435 | |
| 1436 | if (!g_ascii_strncasecmp(mime_type, "text/html", 9)) |
| 1437 | type = MIME_TEXT_HTML; |
| 1438 | else if (!g_ascii_strncasecmp(mime_type, "text/", 5)) |
| 1439 | type = MIME_TEXT; |
| 1440 | else if (!g_ascii_strncasecmp(mime_type, "message/rfc822", 14)) |
| 1441 | type = MIME_MESSAGE_RFC822; |
| 1442 | else if (!g_ascii_strncasecmp(mime_type, "message/", 8)) |
| 1443 | type = MIME_TEXT; |
| 1444 | else if (!g_ascii_strncasecmp(mime_type, "application/octet-stream", |
| 1445 | 24))
|
| 1446 | type = MIME_APPLICATION_OCTET_STREAM; |
| 1447 | else if (!g_ascii_strncasecmp(mime_type, "application/", 12)) |
| 1448 | type = MIME_APPLICATION; |
| 1449 | else if (!g_ascii_strncasecmp(mime_type, "multipart/", 10)) |
| 1450 | type = MIME_MULTIPART; |
| 1451 | else if (!g_ascii_strncasecmp(mime_type, "image/", 6)) |
| 1452 | type = MIME_IMAGE; |
| 1453 | else if (!g_ascii_strncasecmp(mime_type, "audio/", 6)) |
| 1454 | type = MIME_AUDIO; |
| 1455 | else if (!g_ascii_strncasecmp(mime_type, "video/", 6)) |
| 1456 | type = MIME_VIDEO; |
| 1457 | else if (!g_ascii_strcasecmp(mime_type, "text")) |
| 1458 | type = MIME_TEXT; |
| 1459 | else
|
| 1460 | type = MIME_UNKNOWN; |
| 1461 | |
| 1462 | return type;
|
| 1463 | } |
| 1464 | |
| 1465 | static GList *mime_type_list = NULL; |
| 1466 | |
| 1467 | gchar *procmime_get_mime_type(const gchar *filename)
|
| 1468 | {
|
| 1469 | static GHashTable *mime_type_table = NULL; |
| 1470 | MimeType *mime_type; |
| 1471 | const gchar *p;
|
| 1472 | gchar ext[64];
|
| 1473 | static gboolean no_mime_type_table = FALSE;
|
| 1474 | |
| 1475 | if (no_mime_type_table)
|
| 1476 | return NULL; |
| 1477 | |
| 1478 | if (!mime_type_table) {
|
| 1479 | mime_type_table = procmime_get_mime_type_table(); |
| 1480 | if (!mime_type_table) {
|
| 1481 | no_mime_type_table = TRUE; |
| 1482 | return NULL; |
| 1483 | } |
| 1484 | } |
| 1485 | |
| 1486 | filename = g_basename(filename); |
| 1487 | p = strrchr(filename, '.');
|
| 1488 | if (!p) return NULL; |
| 1489 | |
| 1490 | strncpy2(ext, p + 1, sizeof(ext)); |
| 1491 | g_strdown(ext); |
| 1492 | mime_type = g_hash_table_lookup(mime_type_table, ext); |
| 1493 | if (mime_type) {
|
| 1494 | gchar *str; |
| 1495 | |
| 1496 | str = g_strconcat(mime_type->type, "/", mime_type->sub_type,
|
| 1497 | NULL);
|
| 1498 | return str;
|
| 1499 | } |
| 1500 | |
| 1501 | return NULL; |
| 1502 | } |
| 1503 | |
| 1504 | static GHashTable *procmime_get_mime_type_table(void) |
| 1505 | {
|
| 1506 | GHashTable *table = NULL;
|
| 1507 | GList *cur; |
| 1508 | MimeType *mime_type; |
| 1509 | gchar **exts; |
| 1510 | |
| 1511 | if (!mime_type_list) {
|
| 1512 | GList *list; |
| 1513 | gchar *dir; |
| 1514 | |
| 1515 | #ifdef G_OS_WIN32
|
| 1516 | dir = g_strconcat(get_startup_dir(), |
| 1517 | G_DIR_SEPARATOR_S "etc" G_DIR_SEPARATOR_S
|
| 1518 | "mime.types", NULL); |
| 1519 | mime_type_list = procmime_get_mime_type_list(dir); |
| 1520 | g_free(dir); |
| 1521 | #else
|
| 1522 | mime_type_list = |
| 1523 | procmime_get_mime_type_list(SYSCONFDIR "/mime.types");
|
| 1524 | if (!mime_type_list)
|
| 1525 | mime_type_list = |
| 1526 | procmime_get_mime_type_list("/etc/mime.types");
|
| 1527 | #endif
|
| 1528 | dir = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, |
| 1529 | "mime.types", NULL); |
| 1530 | list = procmime_get_mime_type_list(dir); |
| 1531 | g_free(dir); |
| 1532 | mime_type_list = g_list_concat(mime_type_list, list); |
| 1533 | |
| 1534 | if (!mime_type_list) {
|
| 1535 | debug_print("mime.types not found\n");
|
| 1536 | return NULL; |
| 1537 | } |
| 1538 | } |
| 1539 | |
| 1540 | table = g_hash_table_new(g_str_hash, g_str_equal); |
| 1541 | |
| 1542 | for (cur = mime_type_list; cur != NULL; cur = cur->next) { |
| 1543 | gint i; |
| 1544 | gchar *key; |
| 1545 | |
| 1546 | mime_type = (MimeType *)cur->data; |
| 1547 | |
| 1548 | if (!mime_type->extension) continue; |
| 1549 | |
| 1550 | exts = g_strsplit(mime_type->extension, " ", 16); |
| 1551 | for (i = 0; exts[i] != NULL; i++) { |
| 1552 | /* make the key case insensitive */
|
| 1553 | g_strdown(exts[i]); |
| 1554 | /* use previously dup'd key on overwriting */
|
| 1555 | if (g_hash_table_lookup(table, exts[i]))
|
| 1556 | key = exts[i]; |
| 1557 | else
|
| 1558 | key = g_strdup(exts[i]); |
| 1559 | g_hash_table_insert(table, key, mime_type); |
| 1560 | } |
| 1561 | g_strfreev(exts); |
| 1562 | } |
| 1563 | |
| 1564 | return table;
|
| 1565 | } |
| 1566 | |
| 1567 | static GList *procmime_get_mime_type_list(const gchar *file) |
| 1568 | {
|
| 1569 | GList *list = NULL;
|
| 1570 | FILE *fp; |
| 1571 | gchar buf[BUFFSIZE]; |
| 1572 | gchar *p; |
| 1573 | gchar *delim; |
| 1574 | MimeType *mime_type; |
| 1575 | |
| 1576 | if ((fp = g_fopen(file, "rb")) == NULL) return NULL; |
| 1577 | |
| 1578 | debug_print("Reading %s ...\n", file);
|
| 1579 | |
| 1580 | while (fgets(buf, sizeof(buf), fp) != NULL) { |
| 1581 | p = strchr(buf, '#');
|
| 1582 | if (p) *p = '\0'; |
| 1583 | g_strstrip(buf); |
| 1584 | |
| 1585 | p = buf; |
| 1586 | while (*p && !g_ascii_isspace(*p)) p++;
|
| 1587 | if (*p) {
|
| 1588 | *p = '\0';
|
| 1589 | p++; |
| 1590 | } |
| 1591 | delim = strchr(buf, '/');
|
| 1592 | if (delim == NULL) continue; |
| 1593 | *delim = '\0';
|
| 1594 | |
| 1595 | mime_type = g_new(MimeType, 1);
|
| 1596 | mime_type->type = g_strdup(buf); |
| 1597 | mime_type->sub_type = g_strdup(delim + 1);
|
| 1598 | |
| 1599 | while (*p && g_ascii_isspace(*p)) p++;
|
| 1600 | if (*p)
|
| 1601 | mime_type->extension = g_strdup(p); |
| 1602 | else
|
| 1603 | mime_type->extension = NULL;
|
| 1604 | |
| 1605 | list = g_list_append(list, mime_type); |
| 1606 | } |
| 1607 | |
| 1608 | fclose(fp); |
| 1609 | |
| 1610 | if (!list)
|
| 1611 | g_warning("Can't read mime.types\n");
|
| 1612 | |
| 1613 | return list;
|
| 1614 | } |
| 1615 | |
| 1616 | EncodingType procmime_get_encoding_for_charset(const gchar *charset)
|
| 1617 | {
|
| 1618 | if (!charset)
|
| 1619 | return ENC_8BIT;
|
| 1620 | else if (!g_ascii_strncasecmp(charset, "ISO-2022-", 9) || |
| 1621 | !g_ascii_strcasecmp(charset, "US-ASCII"))
|
| 1622 | return ENC_7BIT;
|
| 1623 | else if (!g_ascii_strcasecmp(charset, "ISO-8859-5") || |
| 1624 | !g_ascii_strncasecmp(charset, "KOI8-", 5) || |
| 1625 | !g_ascii_strcasecmp(charset, "Windows-1251"))
|
| 1626 | return ENC_8BIT;
|
| 1627 | else if (!g_ascii_strncasecmp(charset, "ISO-8859-", 9)) |
| 1628 | return ENC_QUOTED_PRINTABLE;
|
| 1629 | else
|
| 1630 | return ENC_8BIT;
|
| 1631 | } |
| 1632 | |
| 1633 | EncodingType procmime_get_encoding_for_text_file(const gchar *file)
|
| 1634 | {
|
| 1635 | FILE *fp; |
| 1636 | guchar buf[BUFFSIZE]; |
| 1637 | size_t len; |
| 1638 | size_t octet_chars = 0;
|
| 1639 | size_t total_len = 0;
|
| 1640 | gfloat octet_percentage; |
| 1641 | |
| 1642 | if ((fp = g_fopen(file, "rb")) == NULL) { |
| 1643 | FILE_OP_ERROR(file, "fopen");
|
| 1644 | return ENC_UNKNOWN;
|
| 1645 | } |
| 1646 | |
| 1647 | while ((len = fread(buf, sizeof(guchar), sizeof(buf), fp)) > 0) { |
| 1648 | guchar *p; |
| 1649 | gint i; |
| 1650 | |
| 1651 | for (p = buf, i = 0; i < len; ++p, ++i) { |
| 1652 | if (*p & 0x80) |
| 1653 | ++octet_chars; |
| 1654 | } |
| 1655 | total_len += len; |
| 1656 | } |
| 1657 | |
| 1658 | fclose(fp); |
| 1659 | |
| 1660 | if (total_len > 0) |
| 1661 | octet_percentage = (gfloat)octet_chars / (gfloat)total_len; |
| 1662 | else
|
| 1663 | octet_percentage = 0.0; |
| 1664 | |
| 1665 | debug_print("procmime_get_encoding_for_text_file(): "
|
| 1666 | "8bit chars: %d / %d (%f%%)\n", octet_chars, total_len,
|
| 1667 | 100.0 * octet_percentage); |
| 1668 | |
| 1669 | if (octet_percentage > 0.20) { |
| 1670 | debug_print("using BASE64\n");
|
| 1671 | return ENC_BASE64;
|
| 1672 | } else if (octet_chars > 0) { |
| 1673 | debug_print("using quoted-printable\n");
|
| 1674 | return ENC_QUOTED_PRINTABLE;
|
| 1675 | } else {
|
| 1676 | debug_print("using 7bit\n");
|
| 1677 | return ENC_7BIT;
|
| 1678 | } |
| 1679 | } |
| 1680 | |
| 1681 | EncodingType procmime_get_encoding_for_str(const gchar *str)
|
| 1682 | {
|
| 1683 | const guchar *p;
|
| 1684 | size_t octet_chars = 0;
|
| 1685 | size_t total_len = 0;
|
| 1686 | gfloat octet_percentage; |
| 1687 | |
| 1688 | total_len = strlen(str); |
| 1689 | |
| 1690 | for (p = (const guchar *)str; *p != '\0'; ++p) { |
| 1691 | if (*p & 0x80) |
| 1692 | ++octet_chars; |
| 1693 | } |
| 1694 | |
| 1695 | if (total_len > 0) |
| 1696 | octet_percentage = (gfloat)octet_chars / (gfloat)total_len; |
| 1697 | else
|
| 1698 | octet_percentage = 0.0; |
| 1699 | |
| 1700 | debug_print("procmime_get_encoding_for_str(): "
|
| 1701 | "8bit chars: %d / %d (%f%%)\n", octet_chars, total_len,
|
| 1702 | 100.0 * octet_percentage); |
| 1703 | |
| 1704 | if (octet_percentage > 0.20) { |
| 1705 | debug_print("using BASE64\n");
|
| 1706 | return ENC_BASE64;
|
| 1707 | } else if (octet_chars > 0) { |
| 1708 | debug_print("using quoted-printable\n");
|
| 1709 | return ENC_QUOTED_PRINTABLE;
|
| 1710 | } else {
|
| 1711 | debug_print("using 7bit\n");
|
| 1712 | return ENC_7BIT;
|
| 1713 | } |
| 1714 | } |
| 1715 | |
| 1716 | const gchar *procmime_get_encoding_str(EncodingType encoding)
|
| 1717 | {
|
| 1718 | static const gchar *encoding_str[] = { |
| 1719 | "7bit", "8bit", "quoted-printable", "base64", "x-uuencode", |
| 1720 | NULL
|
| 1721 | }; |
| 1722 | |
| 1723 | if (encoding >= ENC_7BIT && encoding <= ENC_UNKNOWN)
|
| 1724 | return encoding_str[encoding];
|
| 1725 | else
|
| 1726 | return NULL; |
| 1727 | } |