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2006-12-12 [paul] 2.6.1cvs21
[claws.git] / src / procmime.c
blob29f6a67b61464c364cbadcad769b93f00e5531b2
1 /*
2 * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
3 * Copyright (C) 1999-2006 Hiroyuki Yamamoto & The Claws Mail Team
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18 */
19
20 #ifdef HAVE_CONFIG_H
21 # include "config.h"
22 #endif
23
24 #include "defs.h"
25
26 #include <stdio.h>
27 #include <glib.h>
28 #include <glib/gi18n.h>
29 #include <stdio.h>
30 #include <string.h>
31 #if HAVE_LOCALE_H
32 # include <locale.h>
33 #endif
34 #include <ctype.h>
35 #include <sys/types.h>
36 #include <sys/stat.h>
37 #include <unistd.h>
38
39 #include "procmime.h"
40 #include "procheader.h"
41 #include "base64.h"
42 #include "quoted-printable.h"
43 #include "uuencode.h"
44 #include "unmime.h"
45 #include "html.h"
46 #include "enriched.h"
47 #include "codeconv.h"
48 #include "utils.h"
49 #include "prefs_common.h"
50 #include "prefs_gtk.h"
51 #include "alertpanel.h"
52
53 static GHashTable *procmime_get_mime_type_table (void);
54
55 MimeInfo *procmime_mimeinfo_new(void)
56 {
57 MimeInfo *mimeinfo;
58
59 mimeinfo = g_new0(MimeInfo, 1);
60 mimeinfo->content = MIMECONTENT_EMPTY;
61 mimeinfo->data.filename = NULL;
62
63 mimeinfo->type = MIMETYPE_UNKNOWN;
64 mimeinfo->encoding_type = ENC_UNKNOWN;
65 mimeinfo->typeparameters = g_hash_table_new(g_str_hash, g_str_equal);
66
67 mimeinfo->disposition = DISPOSITIONTYPE_UNKNOWN;
68 mimeinfo->dispositionparameters
69 = g_hash_table_new(g_str_hash, g_str_equal);
70
71 mimeinfo->node = g_node_new(mimeinfo);
72
73 return mimeinfo;
74 }
75
76 static gboolean procmime_mimeinfo_parameters_destroy(gpointer key, gpointer value, gpointer user_data)
77 {
78 g_free(key);
79 g_free(value);
80
81 return TRUE;
82 }
83
84 static gchar *forced_charset = NULL;
85
86 void procmime_force_charset(const gchar *str)
87 {
88 g_free(forced_charset);
89 forced_charset = NULL;
90 if (str)
91 forced_charset = g_strdup(str);
92 }
93
94 static EncodingType forced_encoding = 0;
95
96 void procmime_force_encoding(EncodingType encoding)
97 {
98 forced_encoding = encoding;
99 }
100
101 static gboolean free_func(GNode *node, gpointer data)
102 {
103 MimeInfo *mimeinfo = (MimeInfo *) node->data;
104
105 switch (mimeinfo->content) {
106 case MIMECONTENT_FILE:
107 if (mimeinfo->tmp)
108 g_unlink(mimeinfo->data.filename);
109 g_free(mimeinfo->data.filename);
110 break;
111
112 case MIMECONTENT_MEM:
113 if (mimeinfo->tmp)
114 g_free(mimeinfo->data.mem);
115 default:
116 break;
117 }
118
119 g_free(mimeinfo->subtype);
120 g_free(mimeinfo->description);
121 g_free(mimeinfo->id);
122 g_free(mimeinfo->location);
123
124 g_hash_table_foreach_remove(mimeinfo->typeparameters,
125 procmime_mimeinfo_parameters_destroy, NULL);
126 g_hash_table_destroy(mimeinfo->typeparameters);
127 g_hash_table_foreach_remove(mimeinfo->dispositionparameters,
128 procmime_mimeinfo_parameters_destroy, NULL);
129 g_hash_table_destroy(mimeinfo->dispositionparameters);
130
131 if (mimeinfo->privacy)
132 privacy_free_privacydata(mimeinfo->privacy);
133
134 g_free(mimeinfo);
135
136 return FALSE;
137 }
138
139 void procmime_mimeinfo_free_all(MimeInfo *mimeinfo)
140 {
141 GNode *node;
142
143 if (!mimeinfo)
144 return;
145
146 node = mimeinfo->node;
147 g_node_traverse(node, G_IN_ORDER, G_TRAVERSE_ALL, -1, free_func, NULL);
148
149 g_node_destroy(node);
150 }
151
152 MimeInfo *procmime_mimeinfo_parent(MimeInfo *mimeinfo)
153 {
154 g_return_val_if_fail(mimeinfo != NULL, NULL);
155 g_return_val_if_fail(mimeinfo->node != NULL, NULL);
156
157 if (mimeinfo->node->parent == NULL)
158 return NULL;
159 return (MimeInfo *) mimeinfo->node->parent->data;
160 }
161
162 MimeInfo *procmime_mimeinfo_next(MimeInfo *mimeinfo)
163 {
164 g_return_val_if_fail(mimeinfo != NULL, NULL);
165 g_return_val_if_fail(mimeinfo->node != NULL, NULL);
166
167 if (mimeinfo->node->children)
168 return (MimeInfo *) mimeinfo->node->children->data;
169 if (mimeinfo->node->next)
170 return (MimeInfo *) mimeinfo->node->next->data;
171
172 if (mimeinfo->node->parent == NULL)
173 return NULL;
174
175 while (mimeinfo->node->parent != NULL) {
176 mimeinfo = (MimeInfo *) mimeinfo->node->parent->data;
177 if (mimeinfo->node->next)
178 return (MimeInfo *) mimeinfo->node->next->data;
179 }
180
181 return NULL;
182 }
183
184 MimeInfo *procmime_scan_message(MsgInfo *msginfo)
185 {
186 gchar *filename;
187 MimeInfo *mimeinfo;
188
189 filename = procmsg_get_message_file_path(msginfo);
190 if (!filename || !is_file_exist(filename)) {
191 g_free(filename);
192 filename = procmsg_get_message_file(msginfo);
193 }
194 if (!filename || !is_file_exist(filename))
195 return NULL;
196
197 if (!folder_has_parent_of_type(msginfo->folder, F_QUEUE) &&
198 !folder_has_parent_of_type(msginfo->folder, F_DRAFT))
199 mimeinfo = procmime_scan_file(filename);
200 else
201 mimeinfo = procmime_scan_queue_file(filename);
202 g_free(filename);
203
204 return mimeinfo;
205 }
206
207 enum
208 {
209 H_CONTENT_TRANSFER_ENCODING = 0,
210 H_CONTENT_TYPE = 1,
211 H_CONTENT_DISPOSITION = 2,
212 H_CONTENT_DESCRIPTION = 3,
213 H_SUBJECT = 4
214 };
215
216 const gchar *procmime_mimeinfo_get_parameter(MimeInfo *mimeinfo, const gchar *name)
217 {
218 const gchar *value;
219
220 g_return_val_if_fail(mimeinfo != NULL, NULL);
221 g_return_val_if_fail(name != NULL, NULL);
222
223 value = g_hash_table_lookup(mimeinfo->dispositionparameters, name);
224 if (value == NULL)
225 value = g_hash_table_lookup(mimeinfo->typeparameters, name);
226
227 return value;
228 }
229
230 #define FLUSH_LASTLINE() { \
231 if (*lastline != '\0') { \
232 gint llen = 0; \
233 strretchomp(lastline); \
234 llen = strlen(lastline); \
235 if (lastline[llen-1] == ' ' && strcmp(lastline,"-- ")) { \
236 /* this is flowed */ \
237 if (delsp) \
238 lastline[llen-1] = '\0'; \
239 fputs(lastline, outfp); \
240 } else { \
241 fputs(lastline, outfp); \
242 fputs("\n", outfp); \
243 } \
244 } \
245 strcpy(lastline, buf); \
246 }
247
248 gboolean procmime_decode_content(MimeInfo *mimeinfo)
249 {
250 gchar buf[BUFFSIZE];
251 gint readend;
252 gchar *tmpfilename;
253 FILE *outfp, *infp;
254 struct stat statbuf;
255 gboolean tmp_file = FALSE;
256 gboolean flowed = FALSE;
257 gboolean delsp = FALSE;
258 EncodingType encoding = forced_encoding
259 ? forced_encoding
260 : mimeinfo->encoding_type;
261 gchar lastline[BUFFSIZE];
262 memset(lastline, 0, BUFFSIZE);
263
264 g_return_val_if_fail(mimeinfo != NULL, FALSE);
265
266 if (prefs_common.respect_flowed_format &&
267 mimeinfo->type == MIMETYPE_TEXT &&
268 !strcasecmp(mimeinfo->subtype, "plain")) {
269 if (procmime_mimeinfo_get_parameter(mimeinfo, "format") != NULL &&
270 !strcasecmp(procmime_mimeinfo_get_parameter(mimeinfo, "format"),"flowed"))
271 flowed = TRUE;
272 if (flowed &&
273 procmime_mimeinfo_get_parameter(mimeinfo, "delsp") != NULL &&
274 !strcasecmp(procmime_mimeinfo_get_parameter(mimeinfo, "delsp"),"yes"))
275 delsp = TRUE;
276 }
277
278 if (!flowed && (
279 encoding == ENC_UNKNOWN ||
280 encoding == ENC_BINARY ||
281 encoding == ENC_7BIT ||
282 encoding == ENC_8BIT
283 ))
284 return TRUE;
285
286 infp = g_fopen(mimeinfo->data.filename, "rb");
287 if (!infp) {
288 perror("fopen");
289 return FALSE;
290 }
291 fseek(infp, mimeinfo->offset, SEEK_SET);
292
293 outfp = get_tmpfile_in_dir(get_mime_tmp_dir(), &tmpfilename);
294 if (!outfp) {
295 perror("tmpfile");
296 fclose(infp);
297 return FALSE;
298 }
299 tmp_file = TRUE;
300 readend = mimeinfo->offset + mimeinfo->length;
301
302 if (encoding == ENC_QUOTED_PRINTABLE) {
303 while ((ftell(infp) < readend) && (fgets(buf, sizeof(buf), infp) != NULL)) {
304 gint len;
305 len = qp_decode_line(buf);
306 buf[len]='\0';
307 if (!flowed) {
308 fwrite(buf, 1, len, outfp);
309 } else {
310 FLUSH_LASTLINE();
311 }
312 }
313 if (flowed)
314 FLUSH_LASTLINE();
315 } else if (encoding == ENC_BASE64) {
316 gchar outbuf[BUFFSIZE];
317 gint len;
318 Base64Decoder *decoder;
319 gboolean got_error = FALSE;
320 gboolean uncanonicalize = FALSE;
321 FILE *tmpfp = outfp;
322
323 if (mimeinfo->type == MIMETYPE_TEXT ||
324 mimeinfo->type == MIMETYPE_MESSAGE) {
325 uncanonicalize = TRUE;
326 tmpfp = my_tmpfile();
327 if (!tmpfp) {
328 perror("tmpfile");
329 if (tmp_file) fclose(outfp);
330 fclose(infp);
331 return FALSE;
332 }
333 }
334
335 decoder = base64_decoder_new();
336 while ((ftell(infp) < readend) && (fgets(buf, sizeof(buf), infp) != NULL)) {
337 len = base64_decoder_decode(decoder, buf, outbuf);
338 if (len < 0 && !got_error) {
339 g_warning("Bad BASE64 content.\n");
340 fwrite(_("[Error decoding BASE64]\n"),
341 sizeof(gchar),
342 strlen(_("[Error decoding BASE64]\n")),
343 tmpfp);
344 got_error = TRUE;
345 continue;
346 } else if (len >= 0) {
347 /* print out the error message only once
348 * per block */
349 fwrite(outbuf, sizeof(gchar), len, tmpfp);
350 got_error = FALSE;
351 }
352 }
353 base64_decoder_free(decoder);
354
355 if (uncanonicalize) {
356 rewind(tmpfp);
357 while (fgets(buf, sizeof(buf), tmpfp) != NULL) {
358 strcrchomp(buf);
359 fputs(buf, outfp);
360 }
361 fclose(tmpfp);
362 }
363 } else if (encoding == ENC_X_UUENCODE) {
364 gchar outbuf[BUFFSIZE];
365 gint len;
366 gboolean flag = FALSE;
367
368 while ((ftell(infp) < readend) && (fgets(buf, sizeof(buf), infp) != NULL)) {
369 if (!flag && strncmp(buf,"begin ", 6)) continue;
370
371 if (flag) {
372 len = fromuutobits(outbuf, buf);
373 if (len <= 0) {
374 if (len < 0)
375 g_warning("Bad UUENCODE content(%d)\n", len);
376 break;
377 }
378 fwrite(outbuf, sizeof(gchar), len, outfp);
379 } else
380 flag = TRUE;
381 }
382 } else {
383 while ((ftell(infp) < readend) && (fgets(buf, sizeof(buf), infp) != NULL)) {
384 if (!flowed) {
385 fputs(buf, outfp);
386 } else {
387 FLUSH_LASTLINE();
388 }
389 }
390 if (flowed)
391 FLUSH_LASTLINE();
392 }
393
394 fclose(outfp);
395 fclose(infp);
396
397 stat(tmpfilename, &statbuf);
398 if (mimeinfo->tmp && (mimeinfo->data.filename != NULL))
399 g_unlink(mimeinfo->data.filename);
400 g_free(mimeinfo->data.filename);
401 mimeinfo->data.filename = tmpfilename;
402 mimeinfo->tmp = TRUE;
403 mimeinfo->offset = 0;
404 mimeinfo->length = statbuf.st_size;
405 mimeinfo->encoding_type = ENC_BINARY;
406
407 return TRUE;
408 }
409
410 #define B64_LINE_SIZE 57
411 #define B64_BUFFSIZE 77
412
413 gboolean procmime_encode_content(MimeInfo *mimeinfo, EncodingType encoding)
414 {
415 FILE *infp = NULL, *outfp;
416 gint len;
417 gchar *tmpfilename;
418 struct stat statbuf;
419
420 if (mimeinfo->content == MIMECONTENT_EMPTY)
421 return TRUE;
422
423 if (mimeinfo->encoding_type != ENC_UNKNOWN &&
424 mimeinfo->encoding_type != ENC_BINARY &&
425 mimeinfo->encoding_type != ENC_7BIT &&
426 mimeinfo->encoding_type != ENC_8BIT)
427 if(!procmime_decode_content(mimeinfo))
428 return FALSE;
429
430 outfp = get_tmpfile_in_dir(get_mime_tmp_dir(), &tmpfilename);
431 if (!outfp) {
432 perror("tmpfile");
433 return FALSE;
434 }
435
436 if (mimeinfo->content == MIMECONTENT_FILE) {
437 if ((infp = g_fopen(mimeinfo->data.filename, "rb")) == NULL) {
438 g_warning("Can't open file %s\n", mimeinfo->data.filename);
439 return FALSE;
440 }
441 } else if (mimeinfo->content == MIMECONTENT_MEM) {
442 infp = str_open_as_stream(mimeinfo->data.mem);
443 if (infp == NULL)
444 return FALSE;
445 }
446
447 if (encoding == ENC_BASE64) {
448 gchar inbuf[B64_LINE_SIZE], outbuf[B64_BUFFSIZE];
449 FILE *tmp_fp = infp;
450 gchar *tmp_file = NULL;
451
452 if (mimeinfo->type == MIMETYPE_TEXT ||
453 mimeinfo->type == MIMETYPE_MESSAGE) {
454 if (mimeinfo->content == MIMECONTENT_FILE) {
455 tmp_file = get_tmp_file();
456 if (canonicalize_file(mimeinfo->data.filename, tmp_file) < 0) {
457 g_free(tmp_file);
458 fclose(infp);
459 return FALSE;
460 }
461 if ((tmp_fp = g_fopen(tmp_file, "rb")) == NULL) {
462 FILE_OP_ERROR(tmp_file, "fopen");
463 g_unlink(tmp_file);
464 g_free(tmp_file);
465 fclose(infp);
466 return FALSE;
467 }
468 } else {
469 gchar *out = canonicalize_str(mimeinfo->data.mem);
470 fclose(infp);
471 infp = str_open_as_stream(out);
472 tmp_fp = infp;
473 g_free(out);
474 if (infp == NULL)
475 return FALSE;
476 }
477 }
478
479 while ((len = fread(inbuf, sizeof(gchar),
480 B64_LINE_SIZE, tmp_fp))
481 == B64_LINE_SIZE) {
482 base64_encode(outbuf, inbuf, B64_LINE_SIZE);
483 fputs(outbuf, outfp);
484 fputc('\n', outfp);
485 }
486 if (len > 0 && feof(tmp_fp)) {
487 base64_encode(outbuf, inbuf, len);
488 fputs(outbuf, outfp);
489 fputc('\n', outfp);
490 }
491
492 if (tmp_file) {
493 fclose(tmp_fp);
494 g_unlink(tmp_file);
495 g_free(tmp_file);
496 }
497 } else if (encoding == ENC_QUOTED_PRINTABLE) {
498 gchar inbuf[BUFFSIZE], outbuf[BUFFSIZE * 4];
499
500 while (fgets(inbuf, sizeof(inbuf), infp) != NULL) {
501 qp_encode_line(outbuf, inbuf);
502
503 if (!strncmp("From ", outbuf, sizeof("From ")-1)) {
504 gchar *tmpbuf = outbuf;
505
506 tmpbuf += sizeof("From ")-1;
507
508 fputs("=46rom ", outfp);
509 fputs(tmpbuf, outfp);
510 } else
511 fputs(outbuf, outfp);
512 }
513 } else {
514 gchar buf[BUFFSIZE];
515
516 while (fgets(buf, sizeof(buf), infp) != NULL) {
517 strcrchomp(buf);
518 fputs(buf, outfp);
519 }
520 }
521
522 fclose(outfp);
523 fclose(infp);
524
525 if (mimeinfo->content == MIMECONTENT_FILE) {
526 if (mimeinfo->tmp && (mimeinfo->data.filename != NULL))
527 g_unlink(mimeinfo->data.filename);
528 g_free(mimeinfo->data.filename);
529 } else if (mimeinfo->content == MIMECONTENT_MEM) {
530 if (mimeinfo->tmp && (mimeinfo->data.mem != NULL))
531 g_free(mimeinfo->data.mem);
532 }
533
534 stat(tmpfilename, &statbuf);
535 mimeinfo->content = MIMECONTENT_FILE;
536 mimeinfo->data.filename = tmpfilename;
537 mimeinfo->tmp = TRUE;
538 mimeinfo->offset = 0;
539 mimeinfo->length = statbuf.st_size;
540 mimeinfo->encoding_type = encoding;
541
542 return TRUE;
543 }
544
545 gint procmime_get_part(const gchar *outfile, MimeInfo *mimeinfo)
546 {
547 FILE *infp, *outfp;
548 gchar buf[BUFFSIZE];
549 gint restlength, readlength;
550
551 g_return_val_if_fail(outfile != NULL, -1);
552 g_return_val_if_fail(mimeinfo != NULL, -1);
553
554 if (mimeinfo->encoding_type != ENC_BINARY && !procmime_decode_content(mimeinfo))
555 return -1;
556
557 if ((infp = g_fopen(mimeinfo->data.filename, "rb")) == NULL) {
558 FILE_OP_ERROR(mimeinfo->data.filename, "fopen");
559 return -1;
560 }
561 if (fseek(infp, mimeinfo->offset, SEEK_SET) < 0) {
562 FILE_OP_ERROR(mimeinfo->data.filename, "fseek");
563 fclose(infp);
564 return -1;
565 }
566 if ((outfp = g_fopen(outfile, "wb")) == NULL) {
567 FILE_OP_ERROR(outfile, "fopen");
568 fclose(infp);
569 return -1;
570 }
571
572 restlength = mimeinfo->length;
573
574 while ((restlength > 0) && ((readlength = fread(buf, 1, restlength > BUFFSIZE ? BUFFSIZE : restlength, infp)) > 0)) {
575 fwrite(buf, 1, readlength, outfp);
576 restlength -= readlength;
577 }
578
579 fclose(infp);
580 if (fclose(outfp) == EOF) {
581 FILE_OP_ERROR(outfile, "fclose");
582 g_unlink(outfile);
583 return -1;
584 }
585
586 return 0;
587 }
588
589 struct ContentRenderer {
590 char * content_type;
591 char * renderer;
592 };
593
594 static GList * renderer_list = NULL;
595
596 static struct ContentRenderer *
597 content_renderer_new(char * content_type, char * renderer)
598 {
599 struct ContentRenderer * cr;
600
601 cr = g_new(struct ContentRenderer, 1);
602 if (cr == NULL)
603 return NULL;
604
605 cr->content_type = g_strdup(content_type);
606 cr->renderer = g_strdup(renderer);
607
608 return cr;
609 }
610
611 static void content_renderer_free(struct ContentRenderer * cr)
612 {
613 g_free(cr->content_type);
614 g_free(cr->renderer);
615 g_free(cr);
616 }
617
618 void renderer_read_config(void)
619 {
620 gchar buf[BUFFSIZE];
621 FILE * f;
622 gchar * rcpath;
623
624 g_list_foreach(renderer_list, (GFunc) content_renderer_free, NULL);
625 renderer_list = NULL;
626
627 rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, RENDERER_RC, NULL);
628 f = g_fopen(rcpath, "rb");
629 g_free(rcpath);
630
631 if (f == NULL)
632 return;
633
634 while (fgets(buf, BUFFSIZE, f)) {
635 char * p;
636 struct ContentRenderer * cr;
637
638 strretchomp(buf);
639 p = strchr(buf, ' ');
640 if (p == NULL)
641 continue;
642 * p = 0;
643
644 cr = content_renderer_new(buf, p + 1);
645 if (cr == NULL)
646 continue;
647
648 renderer_list = g_list_append(renderer_list, cr);
649 }
650
651 fclose(f);
652 }
653
654 void renderer_write_config(void)
655 {
656 gchar * rcpath;
657 PrefFile *pfile;
658 GList * cur;
659
660 rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, RENDERER_RC, NULL);
661
662 if ((pfile = prefs_write_open(rcpath)) == NULL) {
663 g_warning("failed to write configuration to file\n");
664 g_free(rcpath);
665 return;
666 }
667
668 g_free(rcpath);
669
670 for (cur = renderer_list ; cur != NULL ; cur = cur->next) {
671 struct ContentRenderer * renderer;
672 renderer = cur->data;
673 fprintf(pfile->fp, "%s %s\n", renderer->content_type,
674 renderer->renderer);
675 }
676
677 if (prefs_file_close(pfile) < 0) {
678 g_warning("failed to write configuration to file\n");
679 return;
680 }
681 }
682
683 FILE *procmime_get_text_content(MimeInfo *mimeinfo)
684 {
685 FILE *tmpfp, *outfp;
686 const gchar *src_codeset;
687 gboolean conv_fail = FALSE;
688 gchar buf[BUFFSIZE];
689 gchar *str;
690 struct ContentRenderer * renderer;
691 GList * cur;
692 gchar *tmpfile, *content_type;
693
694 g_return_val_if_fail(mimeinfo != NULL, NULL);
695
696 if (!procmime_decode_content(mimeinfo))
697 return NULL;
698
699 tmpfile = procmime_get_tmp_file_name(mimeinfo);
700 if (tmpfile == NULL)
701 return NULL;
702
703 if (procmime_get_part(tmpfile, mimeinfo) < 0) {
704 g_free(tmpfile);
705 return NULL;
706 }
707
708 tmpfp = g_fopen(tmpfile, "rb");
709 if (tmpfp == NULL) {
710 g_free(tmpfile);
711 return NULL;
712 }
713
714 if ((outfp = my_tmpfile()) == NULL) {
715 perror("tmpfile");
716 fclose(tmpfp);
717 g_free(tmpfile);
718 return NULL;
719 }
720
721 src_codeset = forced_charset
722 ? forced_charset :
723 procmime_mimeinfo_get_parameter(mimeinfo, "charset");
724
725 renderer = NULL;
726
727 content_type = procmime_get_content_type_str(mimeinfo->type,
728 mimeinfo->subtype);
729 for (cur = renderer_list ; cur != NULL ; cur = cur->next) {
730 struct ContentRenderer * cr;
731
732 cr = cur->data;
733 if (g_ascii_strcasecmp(cr->content_type, content_type) == 0) {
734 renderer = cr;
735 break;
736 }
737 }
738 g_free(content_type);
739
740 if (renderer != NULL) {
741 FILE * p;
742 int oldout;
743
744 oldout = dup(1);
745
746 dup2(fileno(outfp), 1);
747
748 p = popen(renderer->renderer, "w");
749 if (p != NULL) {
750 size_t count;
751
752 while ((count =
753 fread(buf, sizeof(char), sizeof(buf),
754 tmpfp)) > 0)
755 fwrite(buf, sizeof(char), count, p);
756 pclose(p);
757 }
758
759 dup2(oldout, 1);
760 /* CodeConverter seems to have no effect here */
761 } else if (mimeinfo->type == MIMETYPE_TEXT && !g_ascii_strcasecmp(mimeinfo->subtype, "html")) {
762 SC_HTMLParser *parser;
763 CodeConverter *conv;
764
765 conv = conv_code_converter_new(src_codeset);
766 parser = sc_html_parser_new(tmpfp, conv);
767 while ((str = sc_html_parse(parser)) != NULL) {
768 fputs(str, outfp);
769 }
770 sc_html_parser_destroy(parser);
771 conv_code_converter_destroy(conv);
772 } else if (mimeinfo->type == MIMETYPE_TEXT && !g_ascii_strcasecmp(mimeinfo->subtype, "enriched")) {
773 ERTFParser *parser;
774 CodeConverter *conv;
775
776 conv = conv_code_converter_new(src_codeset);
777 parser = ertf_parser_new(tmpfp, conv);
778 while ((str = ertf_parse(parser)) != NULL) {
779 fputs(str, outfp);
780 }
781 ertf_parser_destroy(parser);
782 conv_code_converter_destroy(conv);
783 } else if (mimeinfo->type == MIMETYPE_TEXT) {
784 while (fgets(buf, sizeof(buf), tmpfp) != NULL) {
785 str = conv_codeset_strdup(buf, src_codeset, CS_UTF_8);
786 if (str) {
787 fputs(str, outfp);
788 g_free(str);
789 } else {
790 conv_fail = TRUE;
791 fputs(buf, outfp);
792 }
793 }
794 }
795
796 if (conv_fail)
797 g_warning("procmime_get_text_content(): Code conversion failed.\n");
798
799 fclose(tmpfp);
800 rewind(outfp);
801 g_unlink(tmpfile);
802 g_free(tmpfile);
803
804 return outfp;
805 }
806
807 /* search the first text part of (multipart) MIME message,
808 decode, convert it and output to outfp. */
809 FILE *procmime_get_first_text_content(MsgInfo *msginfo)
810 {
811 FILE *outfp = NULL;
812 MimeInfo *mimeinfo, *partinfo;
813
814 g_return_val_if_fail(msginfo != NULL, NULL);
815
816 mimeinfo = procmime_scan_message(msginfo);
817 if (!mimeinfo) return NULL;
818
819 partinfo = mimeinfo;
820 while (partinfo && partinfo->type != MIMETYPE_TEXT) {
821 partinfo = procmime_mimeinfo_next(partinfo);
822 }
823 if (partinfo)
824 outfp = procmime_get_text_content(partinfo);
825
826 procmime_mimeinfo_free_all(mimeinfo);
827
828 return outfp;
829 }
830
831
832 static gboolean find_encrypted_func(GNode *node, gpointer data)
833 {
834 MimeInfo *mimeinfo = (MimeInfo *) node->data;
835 MimeInfo **encinfo = (MimeInfo **) data;
836
837 if (privacy_mimeinfo_is_encrypted(mimeinfo)) {
838 *encinfo = mimeinfo;
839 return TRUE;
840 }
841
842 return FALSE;
843 }
844
845 static MimeInfo *find_encrypted_part(MimeInfo *rootinfo)
846 {
847 MimeInfo *encinfo = NULL;
848
849 g_node_traverse(rootinfo->node, G_IN_ORDER, G_TRAVERSE_ALL, -1,
850 find_encrypted_func, &encinfo);
851
852 return encinfo;
853 }
854
855 /* search the first encrypted text part of (multipart) MIME message,
856 decode, convert it and output to outfp. */
857 FILE *procmime_get_first_encrypted_text_content(MsgInfo *msginfo)
858 {
859 FILE *outfp = NULL;
860 MimeInfo *mimeinfo, *partinfo, *encinfo;
861
862 g_return_val_if_fail(msginfo != NULL, NULL);
863
864 mimeinfo = procmime_scan_message(msginfo);
865 if (!mimeinfo) {
866 return NULL;
867 }
868
869 partinfo = mimeinfo;
870 if ((encinfo = find_encrypted_part(partinfo)) != NULL) {
871 debug_print("decrypting message part\n");
872 if (privacy_mimeinfo_decrypt(encinfo) < 0) {
873 alertpanel_error(_("Couldn't decrypt: %s"),
874 privacy_get_error());
875 return NULL;
876 }
877 }
878 partinfo = mimeinfo;
879 while (partinfo && partinfo->type != MIMETYPE_TEXT) {
880 partinfo = procmime_mimeinfo_next(partinfo);
881 }
882
883 if (partinfo)
884 outfp = procmime_get_text_content(partinfo);
885
886 procmime_mimeinfo_free_all(mimeinfo);
887
888 return outfp;
889 }
890
891 gboolean procmime_msginfo_is_encrypted(MsgInfo *msginfo)
892 {
893 MimeInfo *mimeinfo, *partinfo;
894 gboolean result = FALSE;
895
896 g_return_val_if_fail(msginfo != NULL, FALSE);
897
898 mimeinfo = procmime_scan_message(msginfo);
899 if (!mimeinfo) {
900 return FALSE;
901 }
902
903 partinfo = mimeinfo;
904 result = (find_encrypted_part(partinfo) != NULL);
905 procmime_mimeinfo_free_all(mimeinfo);
906
907 return result;
908 }
909
910 gboolean procmime_find_string_part(MimeInfo *mimeinfo, const gchar *filename,
911 const gchar *str, StrFindFunc find_func)
912 {
913 FILE *outfp;
914 gchar buf[BUFFSIZE];
915
916 g_return_val_if_fail(mimeinfo != NULL, FALSE);
917 g_return_val_if_fail(mimeinfo->type == MIMETYPE_TEXT, FALSE);
918 g_return_val_if_fail(str != NULL, FALSE);
919 g_return_val_if_fail(find_func != NULL, FALSE);
920
921 outfp = procmime_get_text_content(mimeinfo);
922
923 if (!outfp)
924 return FALSE;
925
926 while (fgets(buf, sizeof(buf), outfp) != NULL) {
927 strretchomp(buf);
928 if (find_func(buf, str)) {
929 fclose(outfp);
930 return TRUE;
931 }
932 }
933
934 fclose(outfp);
935
936 return FALSE;
937 }
938
939 gboolean procmime_find_string(MsgInfo *msginfo, const gchar *str,
940 StrFindFunc find_func)
941 {
942 MimeInfo *mimeinfo;
943 MimeInfo *partinfo;
944 gchar *filename;
945 gboolean found = FALSE;
946
947 g_return_val_if_fail(msginfo != NULL, FALSE);
948 g_return_val_if_fail(str != NULL, FALSE);
949 g_return_val_if_fail(find_func != NULL, FALSE);
950
951 filename = procmsg_get_message_file(msginfo);
952 if (!filename) return FALSE;
953 mimeinfo = procmime_scan_message(msginfo);
954
955 for (partinfo = mimeinfo; partinfo != NULL;
956 partinfo = procmime_mimeinfo_next(partinfo)) {
957 if (partinfo->type == MIMETYPE_TEXT) {
958 if (procmime_find_string_part
959 (partinfo, filename, str, find_func) == TRUE) {
960 found = TRUE;
961 break;
962 }
963 }
964 }
965
966 procmime_mimeinfo_free_all(mimeinfo);
967 g_free(filename);
968
969 return found;
970 }
971
972 gchar *procmime_get_tmp_file_name(MimeInfo *mimeinfo)
973 {
974 static guint32 id = 0;
975 gchar *base;
976 gchar *filename;
977 gchar f_prefix[10];
978
979 g_return_val_if_fail(mimeinfo != NULL, NULL);
980
981 g_snprintf(f_prefix, sizeof(f_prefix), "%08x.", id++);
982
983 if ((mimeinfo->type == MIMETYPE_TEXT) && !g_ascii_strcasecmp(mimeinfo->subtype, "html"))
984 base = g_strdup("mimetmp.html");
985 else {
986 const gchar *basetmp;
987
988 basetmp = procmime_mimeinfo_get_parameter(mimeinfo, "filename");
989 if (basetmp == NULL)
990 basetmp = procmime_mimeinfo_get_parameter(mimeinfo, "name");
991 if (basetmp == NULL)
992 basetmp = "mimetmp";
993 basetmp = g_path_get_basename(basetmp);
994 if (*basetmp == '\0')
995 basetmp = g_strdup("mimetmp");
996 base = conv_filename_from_utf8(basetmp);
997 g_free((gchar*)basetmp);
998 subst_for_shellsafe_filename(base);
999 }
1000
1001 filename = g_strconcat(get_mime_tmp_dir(), G_DIR_SEPARATOR_S,
1002 f_prefix, base, NULL);
1003
1004 g_free(base);
1005
1006 return filename;
1007 }
1008
1009 static GList *mime_type_list = NULL;
1010
1011 gchar *procmime_get_mime_type(const gchar *filename)
1012 {
1013 static GHashTable *mime_type_table = NULL;
1014 MimeType *mime_type;
1015 const gchar *p;
1016 gchar *ext = NULL;
1017 gchar *base;
1018
1019 if (!mime_type_table) {
1020 mime_type_table = procmime_get_mime_type_table();
1021 if (!mime_type_table) return NULL;
1022 }
1023
1024 base = g_path_get_basename(filename);
1025 if ((p = strrchr(base, '.')) != NULL)
1026 Xstrdup_a(ext, p + 1, p = NULL );
1027 g_free(base);
1028 if (!p) return NULL;
1029
1030 g_strdown(ext);
1031 mime_type = g_hash_table_lookup(mime_type_table, ext);
1032 if (mime_type) {
1033 gchar *str;
1034
1035 str = g_strconcat(mime_type->type, "/", mime_type->sub_type,
1036 NULL);
1037 return str;
1038 }
1039
1040 return NULL;
1041 }
1042
1043 static guint procmime_str_hash(gconstpointer gptr)
1044 {
1045 guint hash_result = 0;
1046 const char *str;
1047
1048 for (str = gptr; str && *str; str++) {
1049 if (isupper(*str)) hash_result += (*str + ' ');
1050 else hash_result += *str;
1051 }
1052
1053 return hash_result;
1054 }
1055
1056 static gint procmime_str_equal(gconstpointer gptr1, gconstpointer gptr2)
1057 {
1058 const char *str1 = gptr1;
1059 const char *str2 = gptr2;
1060
1061 return !g_utf8_collate(str1, str2);
1062 }
1063
1064 static GHashTable *procmime_get_mime_type_table(void)
1065 {
1066 GHashTable *table = NULL;
1067 GList *cur;
1068 MimeType *mime_type;
1069 gchar **exts;
1070
1071 if (!mime_type_list) {
1072 mime_type_list = procmime_get_mime_type_list();
1073 if (!mime_type_list) return NULL;
1074 }
1075
1076 table = g_hash_table_new(procmime_str_hash, procmime_str_equal);
1077
1078 for (cur = mime_type_list; cur != NULL; cur = cur->next) {
1079 gint i;
1080 gchar *key;
1081
1082 mime_type = (MimeType *)cur->data;
1083
1084 if (!mime_type->extension) continue;
1085
1086 exts = g_strsplit(mime_type->extension, " ", 16);
1087 for (i = 0; exts[i] != NULL; i++) {
1088 /* make the key case insensitive */
1089 g_strdown(exts[i]);
1090 /* use previously dup'd key on overwriting */
1091 if (g_hash_table_lookup(table, exts[i]))
1092 key = exts[i];
1093 else
1094 key = g_strdup(exts[i]);
1095 g_hash_table_insert(table, key, mime_type);
1096 }
1097 g_strfreev(exts);
1098 }
1099
1100 return table;
1101 }
1102
1103 GList *procmime_get_mime_type_list(void)
1104 {
1105 GList *list = NULL;
1106 FILE *fp;
1107 gchar buf[BUFFSIZE];
1108 gchar *p;
1109 gchar *delim;
1110 MimeType *mime_type;
1111 gboolean fp_is_glob_file = TRUE;
1112
1113 if (mime_type_list)
1114 return mime_type_list;
1115
1116 if ((fp = g_fopen("/usr/share/mime/globs", "rb")) == NULL) {
1117 fp_is_glob_file = FALSE;
1118 if ((fp = g_fopen("/etc/mime.types", "rb")) == NULL) {
1119 if ((fp = g_fopen(SYSCONFDIR "/mime.types", "rb"))
1120 == NULL) {
1121 FILE_OP_ERROR(SYSCONFDIR "/mime.types",
1122 "fopen");
1123 return NULL;
1124 }
1125 }
1126 }
1127
1128 while (fgets(buf, sizeof(buf), fp) != NULL) {
1129 p = strchr(buf, '#');
1130 if (p) *p = '\0';
1131 g_strstrip(buf);
1132
1133 p = buf;
1134
1135 if (fp_is_glob_file) {
1136 while (*p && !g_ascii_isspace(*p) && (*p!=':')) p++;
1137 } else {
1138 while (*p && !g_ascii_isspace(*p)) p++;
1139 }
1140
1141 if (*p) {
1142 *p = '\0';
1143 p++;
1144 }
1145 delim = strchr(buf, '/');
1146 if (delim == NULL) continue;
1147 *delim = '\0';
1148
1149 mime_type = g_new(MimeType, 1);
1150 mime_type->type = g_strdup(buf);
1151 mime_type->sub_type = g_strdup(delim + 1);
1152
1153 if (fp_is_glob_file) {
1154 while (*p && (g_ascii_isspace(*p)||(*p=='*')||(*p=='.'))) p++;
1155 } else {
1156 while (*p && g_ascii_isspace(*p)) p++;
1157 }
1158
1159 if (*p)
1160 mime_type->extension = g_strdup(p);
1161 else
1162 mime_type->extension = NULL;
1163
1164 list = g_list_append(list, mime_type);
1165 }
1166
1167 fclose(fp);
1168
1169 if (!list)
1170 g_warning("Can't read mime.types\n");
1171
1172 return list;
1173 }
1174
1175 EncodingType procmime_get_encoding_for_charset(const gchar *charset)
1176 {
1177 if (!charset)
1178 return ENC_8BIT;
1179 else if (!g_ascii_strncasecmp(charset, "ISO-2022-", 9) ||
1180 !g_ascii_strcasecmp(charset, "US-ASCII"))
1181 return ENC_7BIT;
1182 else if (!g_ascii_strcasecmp(charset, "ISO-8859-5") ||
1183 !g_ascii_strncasecmp(charset, "KOI8-", 5) ||
1184 !g_ascii_strcasecmp(charset, "Windows-1251"))
1185 return ENC_8BIT;
1186 else if (!g_ascii_strncasecmp(charset, "ISO-8859-", 9))
1187 return ENC_QUOTED_PRINTABLE;
1188 else if (!g_ascii_strncasecmp(charset, "UTF-8", 5))
1189 return ENC_QUOTED_PRINTABLE;
1190 else
1191 return ENC_8BIT;
1192 }
1193
1194 EncodingType procmime_get_encoding_for_text_file(const gchar *file, gboolean *has_binary)
1195 {
1196 FILE *fp;
1197 guchar buf[BUFFSIZE];
1198 size_t len;
1199 size_t octet_chars = 0;
1200 size_t total_len = 0;
1201 gfloat octet_percentage;
1202 gboolean force_b64 = FALSE;
1203
1204 if ((fp = g_fopen(file, "rb")) == NULL) {
1205 FILE_OP_ERROR(file, "fopen");
1206 return ENC_UNKNOWN;
1207 }
1208
1209 while ((len = fread(buf, sizeof(guchar), sizeof(buf), fp)) > 0) {
1210 guchar *p;
1211 gint i;
1212
1213 for (p = buf, i = 0; i < len; ++p, ++i) {
1214 if (*p & 0x80)
1215 ++octet_chars;
1216 if (*p == '\0') {
1217 force_b64 = TRUE;
1218 *has_binary = TRUE;
1219 }
1220 }
1221 total_len += len;
1222 }
1223
1224 fclose(fp);
1225
1226 if (total_len > 0)
1227 octet_percentage = (gfloat)octet_chars / (gfloat)total_len;
1228 else
1229 octet_percentage = 0.0;
1230
1231 debug_print("procmime_get_encoding_for_text_file(): "
1232 "8bit chars: %d / %d (%f%%)\n", octet_chars, total_len,
1233 100.0 * octet_percentage);
1234
1235 if (octet_percentage > 0.20 || force_b64) {
1236 debug_print("using BASE64\n");
1237 return ENC_BASE64;
1238 } else if (octet_chars > 0) {
1239 debug_print("using quoted-printable\n");
1240 return ENC_QUOTED_PRINTABLE;
1241 } else {
1242 debug_print("using 7bit\n");
1243 return ENC_7BIT;
1244 }
1245 }
1246
1247 struct EncodingTable
1248 {
1249 gchar *str;
1250 EncodingType enc_type;
1251 };
1252
1253 struct EncodingTable encoding_table[] = {
1254 {"7bit", ENC_7BIT},
1255 {"8bit", ENC_8BIT},
1256 {"binary", ENC_BINARY},
1257 {"quoted-printable", ENC_QUOTED_PRINTABLE},
1258 {"base64", ENC_BASE64},
1259 {"x-uuencode", ENC_UNKNOWN},
1260 {NULL, ENC_UNKNOWN},
1261 };
1262
1263 const gchar *procmime_get_encoding_str(EncodingType encoding)
1264 {
1265 struct EncodingTable *enc_table;
1266
1267 for (enc_table = encoding_table; enc_table->str != NULL; enc_table++) {
1268 if (enc_table->enc_type == encoding)
1269 return enc_table->str;
1270 }
1271 return NULL;
1272 }
1273
1274 /* --- NEW MIME STUFF --- */
1275 struct TypeTable
1276 {
1277 gchar *str;
1278 MimeMediaType type;
1279 };
1280
1281 static struct TypeTable mime_type_table[] = {
1282 {"text", MIMETYPE_TEXT},
1283 {"image", MIMETYPE_IMAGE},
1284 {"audio", MIMETYPE_AUDIO},
1285 {"video", MIMETYPE_VIDEO},
1286 {"application", MIMETYPE_APPLICATION},
1287 {"message", MIMETYPE_MESSAGE},
1288 {"multipart", MIMETYPE_MULTIPART},
1289 {NULL, 0},
1290 };
1291
1292 const gchar *procmime_get_media_type_str(MimeMediaType type)
1293 {
1294 struct TypeTable *type_table;
1295
1296 for (type_table = mime_type_table; type_table->str != NULL; type_table++) {
1297 if (type_table->type == type)
1298 return type_table->str;
1299 }
1300 return NULL;
1301 }
1302
1303 MimeMediaType procmime_get_media_type(const gchar *str)
1304 {
1305 struct TypeTable *typetablearray;
1306
1307 for (typetablearray = mime_type_table; typetablearray->str != NULL; typetablearray++)
1308 if (g_ascii_strncasecmp(str, typetablearray->str, strlen(typetablearray->str)) == 0)
1309 return typetablearray->type;
1310
1311 return MIMETYPE_UNKNOWN;
1312 }
1313
1314 /*!
1315 *\brief Safe wrapper for content type string.
1316 *
1317 *\return const gchar * Pointer to content type string.
1318 */
1319 gchar *procmime_get_content_type_str(MimeMediaType type,
1320 const char *subtype)
1321 {
1322 const gchar *type_str = NULL;
1323
1324 if (subtype == NULL || !(type_str = procmime_get_media_type_str(type)))
1325 return g_strdup("unknown");
1326 return g_strdup_printf("%s/%s", type_str, subtype);
1327 }
1328
1329 static int procmime_parse_mimepart(MimeInfo *parent,
1330 gchar *content_type,
1331 gchar *content_encoding,
1332 gchar *content_description,
1333 gchar *content_id,
1334 gchar *content_disposition,
1335 gchar *content_location,
1336 const gchar *filename,
1337 guint offset,
1338 guint length);
1339
1340 void procmime_parse_message_rfc822(MimeInfo *mimeinfo)
1341 {
1342 HeaderEntry hentry[] = {{"Content-Type:", NULL, TRUE},
1343 {"Content-Transfer-Encoding:",
1344 NULL, FALSE},
1345 {"Content-Description:",
1346 NULL, TRUE},
1347 {"Content-ID:",
1348 NULL, TRUE},
1349 {"Content-Disposition:",
1350 NULL, TRUE},
1351 {"Content-Location:",
1352 NULL, TRUE},
1353 {"MIME-Version:",
1354 NULL, TRUE},
1355 {NULL, NULL, FALSE}};
1356 guint content_start, i;
1357 FILE *fp;
1358 gchar *tmp;
1359
1360 procmime_decode_content(mimeinfo);
1361
1362 fp = g_fopen(mimeinfo->data.filename, "rb");
1363 if (fp == NULL) {
1364 FILE_OP_ERROR(mimeinfo->data.filename, "fopen");
1365 return;
1366 }
1367 fseek(fp, mimeinfo->offset, SEEK_SET);
1368 procheader_get_header_fields(fp, hentry);
1369 if (hentry[0].body != NULL) {
1370 tmp = conv_unmime_header(hentry[0].body, NULL);
1371 g_free(hentry[0].body);
1372 hentry[0].body = tmp;
1373 }
1374 if (hentry[2].body != NULL) {
1375 tmp = conv_unmime_header(hentry[2].body, NULL);
1376 g_free(hentry[2].body);
1377 hentry[2].body = tmp;
1378 }
1379 if (hentry[4].body != NULL) {
1380 tmp = conv_unmime_header(hentry[4].body, NULL);
1381 g_free(hentry[4].body);
1382 hentry[4].body = tmp;
1383 }
1384 if (hentry[5].body != NULL) {
1385 tmp = conv_unmime_header(hentry[5].body, NULL);
1386 g_free(hentry[5].body);
1387 hentry[5].body = tmp;
1388 }
1389 content_start = ftell(fp);
1390 fclose(fp);
1391
1392 procmime_parse_mimepart(mimeinfo,
1393 hentry[0].body, hentry[1].body,
1394 hentry[2].body, hentry[3].body,
1395 hentry[4].body, hentry[5].body,
1396 mimeinfo->data.filename, content_start,
1397 mimeinfo->length - (content_start - mimeinfo->offset));
1398
1399 for (i = 0; i < (sizeof hentry / sizeof hentry[0]); i++) {
1400 g_free(hentry[i].body);
1401 hentry[i].body = NULL;
1402 }
1403 }
1404
1405 void procmime_parse_multipart(MimeInfo *mimeinfo)
1406 {
1407 HeaderEntry hentry[] = {{"Content-Type:", NULL, TRUE},
1408 {"Content-Transfer-Encoding:",
1409 NULL, FALSE},
1410 {"Content-Description:",
1411 NULL, TRUE},
1412 {"Content-ID:",
1413 NULL, TRUE},
1414 {"Content-Disposition:",
1415 NULL, TRUE},
1416 {"Content-Location:",
1417 NULL, TRUE},
1418 {NULL, NULL, FALSE}};
1419 gchar *p, *tmp;
1420 gchar *boundary;
1421 gint boundary_len = 0, lastoffset = -1, i;
1422 gchar buf[BUFFSIZE];
1423 FILE *fp;
1424 int result = 0;
1425
1426 boundary = g_hash_table_lookup(mimeinfo->typeparameters, "boundary");
1427 if (!boundary)
1428 return;
1429 boundary_len = strlen(boundary);
1430
1431 procmime_decode_content(mimeinfo);
1432
1433 fp = g_fopen(mimeinfo->data.filename, "rb");
1434 if (fp == NULL) {
1435 FILE_OP_ERROR(mimeinfo->data.filename, "fopen");
1436 return;
1437 }
1438 fseek(fp, mimeinfo->offset, SEEK_SET);
1439 while ((p = fgets(buf, sizeof(buf), fp)) != NULL && result == 0) {
1440 if (ftell(fp) - 1 > (mimeinfo->offset + mimeinfo->length))
1441 break;
1442
1443 if (IS_BOUNDARY(buf, boundary, boundary_len)) {
1444 if (lastoffset != -1) {
1445 result = procmime_parse_mimepart(mimeinfo,
1446 hentry[0].body, hentry[1].body,
1447 hentry[2].body, hentry[3].body,
1448 hentry[4].body, hentry[5].body,
1449 mimeinfo->data.filename, lastoffset,
1450 (ftell(fp) - strlen(buf)) - lastoffset - 1);
1451 }
1452
1453 if (buf[2 + boundary_len] == '-' &&
1454 buf[2 + boundary_len + 1] == '-')
1455 break;
1456
1457 for (i = 0; i < (sizeof hentry / sizeof hentry[0]) ; i++) {
1458 g_free(hentry[i].body);
1459 hentry[i].body = NULL;
1460 }
1461 procheader_get_header_fields(fp, hentry);
1462 if (hentry[0].body != NULL) {
1463 tmp = conv_unmime_header(hentry[0].body, NULL);
1464 g_free(hentry[0].body);
1465 hentry[0].body = tmp;
1466 }
1467 if (hentry[2].body != NULL) {
1468 tmp = conv_unmime_header(hentry[2].body, NULL);
1469 g_free(hentry[2].body);
1470 hentry[2].body = tmp;
1471 }
1472 if (hentry[4].body != NULL) {
1473 tmp = conv_unmime_header(hentry[4].body, NULL);
1474 g_free(hentry[4].body);
1475 hentry[4].body = tmp;
1476 }
1477 if (hentry[5].body != NULL) {
1478 tmp = conv_unmime_header(hentry[5].body, NULL);
1479 g_free(hentry[5].body);
1480 hentry[5].body = tmp;
1481 }
1482 lastoffset = ftell(fp);
1483 }
1484 }
1485 for (i = 0; i < (sizeof hentry / sizeof hentry[0]); i++) {
1486 g_free(hentry[i].body);
1487 hentry[i].body = NULL;
1488 }
1489 fclose(fp);
1490 }
1491
1492 static void parse_parameters(const gchar *parameters, GHashTable *table)
1493 {
1494 gchar *params, *param, *next;
1495 GSList *convlist = NULL, *concatlist = NULL, *cur;
1496
1497 params = g_strdup(parameters);
1498 param = params;
1499 next = params;
1500 for (; next != NULL; param = next) {
1501 gchar *attribute, *value, *tmp;
1502 gint len;
1503 gboolean convert = FALSE;
1504
1505 next = strchr_with_skip_quote(param, '"', ';');
1506 if (next != NULL) {
1507 next[0] = '\0';
1508 next++;
1509 }
1510
1511 g_strstrip(param);
1512
1513 attribute = param;
1514 value = strchr(attribute, '=');
1515 if (value == NULL)
1516 continue;
1517
1518 value[0] = '\0';
1519 value++;
1520 while (value[0] == ' ')
1521 value++;
1522
1523 g_strdown(attribute);
1524
1525 len = strlen(attribute);
1526 if (attribute[len - 1] == '*') {
1527 gchar *srcpos, *dstpos, *endpos;
1528
1529 convert = TRUE;
1530 attribute[len - 1] = '\0';
1531
1532 srcpos = value;
1533 dstpos = value;
1534 endpos = value + strlen(value);
1535 while (srcpos < endpos) {
1536 if (*srcpos != '%')
1537 *dstpos = *srcpos;
1538 else {
1539 guchar dstvalue;
1540
1541 if (!get_hex_value(&dstvalue, srcpos[1], srcpos[2]))
1542 *dstpos = '?';
1543 else
1544 *dstpos = dstvalue;
1545 srcpos += 2;
1546 }
1547 srcpos++;
1548 dstpos++;
1549 }
1550 *dstpos = '\0';
1551 } else {
1552 if (value[0] == '"')
1553 extract_quote(value, '"');
1554 else if ((tmp = strchr(value, ' ')) != NULL)
1555 *tmp = '\0';
1556 }
1557
1558 if (attribute) {
1559 while (attribute[0] == ' ')
1560 attribute++;
1561 while (attribute[strlen(attribute)-1] == ' ')
1562 attribute[strlen(attribute)-1] = '\0';
1563 }
1564 if (value) {
1565 while (value[0] == ' ')
1566 value++;
1567 while (value[strlen(value)-1] == ' ')
1568 value[strlen(value)-1] = '\0';
1569 }
1570 if (strrchr(attribute, '*') != NULL) {
1571 gchar *tmpattr;
1572
1573 tmpattr = g_strdup(attribute);
1574 tmp = strrchr(tmpattr, '*');
1575 tmp[0] = '\0';
1576
1577 if ((tmp[1] == '0') && (tmp[2] == '\0') &&
1578 (g_slist_find_custom(concatlist, attribute, g_str_equal) == NULL))
1579 concatlist = g_slist_prepend(concatlist, g_strdup(tmpattr));
1580
1581 if (convert && (g_slist_find_custom(convlist, attribute, g_str_equal) == NULL))
1582 convlist = g_slist_prepend(convlist, g_strdup(tmpattr));
1583
1584 g_free(tmpattr);
1585 } else if (convert) {
1586 if (g_slist_find_custom(convlist, attribute, g_str_equal) == NULL)
1587 convlist = g_slist_prepend(convlist, g_strdup(attribute));
1588 }
1589
1590 if (g_hash_table_lookup(table, attribute) == NULL)
1591 g_hash_table_insert(table, g_strdup(attribute), g_strdup(value));
1592 }
1593
1594 for (cur = concatlist; cur != NULL; cur = g_slist_next(cur)) {
1595 gchar *attribute, *attrwnum, *partvalue;
1596 gint n = 0;
1597 GString *value;
1598
1599 attribute = (gchar *) cur->data;
1600 value = g_string_sized_new(64);
1601
1602 attrwnum = g_strdup_printf("%s*%d", attribute, n);
1603 while ((partvalue = g_hash_table_lookup(table, attrwnum)) != NULL) {
1604 g_string_append(value, partvalue);
1605
1606 g_free(attrwnum);
1607 n++;
1608 attrwnum = g_strdup_printf("%s*%d", attribute, n);
1609 }
1610 g_free(attrwnum);
1611
1612 g_hash_table_insert(table, g_strdup(attribute), g_strdup(value->str));
1613 g_string_free(value, TRUE);
1614 }
1615 slist_free_strings(concatlist);
1616 g_slist_free(concatlist);
1617
1618 for (cur = convlist; cur != NULL; cur = g_slist_next(cur)) {
1619 gchar *attribute, *key, *value;
1620 gchar *charset, *lang, *oldvalue, *newvalue;
1621
1622 attribute = (gchar *) cur->data;
1623 if (!g_hash_table_lookup_extended(
1624 table, attribute, (gpointer *)(gchar *) &key, (gpointer *)(gchar *) &value))
1625 continue;
1626
1627 charset = value;
1628 lang = strchr(charset, '\'');
1629 if (lang == NULL)
1630 continue;
1631 lang[0] = '\0';
1632 lang++;
1633 oldvalue = strchr(lang, '\'');
1634 if (oldvalue == NULL)
1635 continue;
1636 oldvalue[0] = '\0';
1637 oldvalue++;
1638
1639 newvalue = conv_codeset_strdup(oldvalue, charset, CS_UTF_8);
1640
1641 g_hash_table_remove(table, attribute);
1642 g_free(key);
1643 g_free(value);
1644
1645 g_hash_table_insert(table, g_strdup(attribute), newvalue);
1646 }
1647 slist_free_strings(convlist);
1648 g_slist_free(convlist);
1649
1650 g_free(params);
1651 }
1652
1653 static void procmime_parse_content_type(const gchar *content_type, MimeInfo *mimeinfo)
1654 {
1655 g_return_if_fail(content_type != NULL);
1656 g_return_if_fail(mimeinfo != NULL);
1657
1658 /* RFC 2045, page 13 says that the mime subtype is MANDATORY;
1659 * if it's not available we use the default Content-Type */
1660 if ((content_type[0] == '\0') || (strchr(content_type, '/') == NULL)) {
1661 mimeinfo->type = MIMETYPE_TEXT;
1662 mimeinfo->subtype = g_strdup("plain");
1663 if (g_hash_table_lookup(mimeinfo->typeparameters,
1664 "charset") == NULL) {
1665 g_hash_table_insert(mimeinfo->typeparameters,
1666 g_strdup("charset"),
1667 g_strdup(
1668 conv_get_locale_charset_str_no_utf8()));
1669 }
1670 } else {
1671 gchar *type, *subtype, *params;
1672
1673 type = g_strdup(content_type);
1674 subtype = strchr(type, '/') + 1;
1675 *(subtype - 1) = '\0';
1676 if ((params = strchr(subtype, ';')) != NULL) {
1677 params[0] = '\0';
1678 params++;
1679 }
1680
1681 mimeinfo->type = procmime_get_media_type(type);
1682 mimeinfo->subtype = g_strdup(subtype);
1683
1684 /* Get mimeinfo->typeparameters */
1685 if (params != NULL)
1686 parse_parameters(params, mimeinfo->typeparameters);
1687
1688 g_free(type);
1689 }
1690 }
1691
1692 static void procmime_parse_content_disposition(const gchar *content_disposition, MimeInfo *mimeinfo)
1693 {
1694 gchar *tmp, *params;
1695
1696 g_return_if_fail(content_disposition != NULL);
1697 g_return_if_fail(mimeinfo != NULL);
1698
1699 tmp = g_strdup(content_disposition);
1700 if ((params = strchr(tmp, ';')) != NULL) {
1701 params[0] = '\0';
1702 params++;
1703 }
1704 g_strstrip(tmp);
1705
1706 if (!g_ascii_strcasecmp(tmp, "inline"))
1707 mimeinfo->disposition = DISPOSITIONTYPE_INLINE;
1708 else if (!g_ascii_strcasecmp(tmp, "attachment"))
1709 mimeinfo->disposition = DISPOSITIONTYPE_ATTACHMENT;
1710 else
1711 mimeinfo->disposition = DISPOSITIONTYPE_ATTACHMENT;
1712
1713 if (params != NULL)
1714 parse_parameters(params, mimeinfo->dispositionparameters);
1715
1716 g_free(tmp);
1717 }
1718
1719
1720 static void procmime_parse_content_encoding(const gchar *content_encoding, MimeInfo *mimeinfo)
1721 {
1722 struct EncodingTable *enc_table;
1723
1724 for (enc_table = encoding_table; enc_table->str != NULL; enc_table++) {
1725 if (g_ascii_strcasecmp(enc_table->str, content_encoding) == 0) {
1726 mimeinfo->encoding_type = enc_table->enc_type;
1727 return;
1728 }
1729 }
1730 mimeinfo->encoding_type = ENC_UNKNOWN;
1731 return;
1732 }
1733
1734 static int procmime_parse_mimepart(MimeInfo *parent,
1735 gchar *content_type,
1736 gchar *content_encoding,
1737 gchar *content_description,
1738 gchar *content_id,
1739 gchar *content_disposition,
1740 gchar *content_location,
1741 const gchar *filename,
1742 guint offset,
1743 guint length)
1744 {
1745 MimeInfo *mimeinfo;
1746
1747 /* Create MimeInfo */
1748 mimeinfo = procmime_mimeinfo_new();
1749 mimeinfo->content = MIMECONTENT_FILE;
1750 if (parent != NULL) {
1751 if (g_node_depth(parent->node) > 32) {
1752 /* 32 is an arbitrary value
1753 * this avoids DOSsing ourselves
1754 * with enormous messages
1755 */
1756 procmime_mimeinfo_free_all(mimeinfo);
1757 return -1;
1758 }
1759 g_node_append(parent->node, mimeinfo->node);
1760 }
1761 mimeinfo->data.filename = g_strdup(filename);
1762 mimeinfo->offset = offset;
1763 mimeinfo->length = length;
1764
1765 if (content_type != NULL) {
1766 procmime_parse_content_type(content_type, mimeinfo);
1767 } else {
1768 mimeinfo->type = MIMETYPE_TEXT;
1769 mimeinfo->subtype = g_strdup("plain");
1770 if (g_hash_table_lookup(mimeinfo->typeparameters,
1771 "charset") == NULL) {
1772 g_hash_table_insert(mimeinfo->typeparameters,
1773 g_strdup("charset"),
1774 g_strdup(
1775 conv_get_locale_charset_str_no_utf8()));
1776 }
1777 }
1778
1779 if (content_encoding != NULL) {
1780 procmime_parse_content_encoding(content_encoding, mimeinfo);
1781 } else {
1782 mimeinfo->encoding_type = ENC_UNKNOWN;
1783 }
1784
1785 if (content_description != NULL)
1786 mimeinfo->description = g_strdup(content_description);
1787 else
1788 mimeinfo->description = NULL;
1789
1790 if (content_id != NULL)
1791 mimeinfo->id = g_strdup(content_id);
1792 else
1793 mimeinfo->id = NULL;
1794
1795 if (content_location != NULL)
1796 mimeinfo->location = g_strdup(content_location);
1797 else
1798 mimeinfo->location = NULL;
1799
1800 if (content_disposition != NULL)
1801 procmime_parse_content_disposition(content_disposition, mimeinfo);
1802 else
1803 mimeinfo->disposition = DISPOSITIONTYPE_UNKNOWN;
1804
1805 /* Call parser for mime type */
1806 switch (mimeinfo->type) {
1807 case MIMETYPE_MESSAGE:
1808 if (g_ascii_strcasecmp(mimeinfo->subtype, "rfc822") == 0) {
1809 procmime_parse_message_rfc822(mimeinfo);
1810 }
1811 break;
1812
1813 case MIMETYPE_MULTIPART:
1814 procmime_parse_multipart(mimeinfo);
1815 break;
1816
1817 default:
1818 break;
1819 }
1820
1821 return 0;
1822 }
1823
1824 static gchar *typenames[] = {
1825 "text",
1826 "image",
1827 "audio",
1828 "video",
1829 "application",
1830 "message",
1831 "multipart",
1832 "unknown",
1833 };
1834
1835 static gboolean output_func(GNode *node, gpointer data)
1836 {
1837 guint i, depth;
1838 MimeInfo *mimeinfo = (MimeInfo *) node->data;
1839
1840 depth = g_node_depth(node);
1841 for (i = 0; i < depth; i++)
1842 printf(" ");
1843 printf("%s/%s (offset:%d length:%d encoding: %d)\n", typenames[mimeinfo->type], mimeinfo->subtype, mimeinfo->offset, mimeinfo->length, mimeinfo->encoding_type);
1844
1845 return FALSE;
1846 }
1847
1848 static void output_mime_structure(MimeInfo *mimeinfo, int indent)
1849 {
1850 g_node_traverse(mimeinfo->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1, output_func, NULL);
1851 }
1852
1853 MimeInfo *procmime_scan_file_with_offset(const gchar *filename, int offset)
1854 {
1855 MimeInfo *mimeinfo;
1856 struct stat buf;
1857
1858 stat(filename, &buf);
1859
1860 mimeinfo = procmime_mimeinfo_new();
1861 mimeinfo->content = MIMECONTENT_FILE;
1862 mimeinfo->encoding_type = ENC_UNKNOWN;
1863 mimeinfo->type = MIMETYPE_MESSAGE;
1864 mimeinfo->subtype = g_strdup("rfc822");
1865 mimeinfo->data.filename = g_strdup(filename);
1866 mimeinfo->offset = offset;
1867 mimeinfo->length = buf.st_size - offset;
1868
1869 procmime_parse_message_rfc822(mimeinfo);
1870 if (debug_get_mode())
1871 output_mime_structure(mimeinfo, 0);
1872
1873 return mimeinfo;
1874 }
1875
1876 MimeInfo *procmime_scan_file(const gchar *filename)
1877 {
1878 MimeInfo *mimeinfo;
1879
1880 g_return_val_if_fail(filename != NULL, NULL);
1881
1882 mimeinfo = procmime_scan_file_with_offset(filename, 0);
1883
1884 return mimeinfo;
1885 }
1886
1887 MimeInfo *procmime_scan_queue_file(const gchar *filename)
1888 {
1889 FILE *fp;
1890 MimeInfo *mimeinfo;
1891 gchar buf[BUFFSIZE];
1892 gint offset = 0;
1893
1894 g_return_val_if_fail(filename != NULL, NULL);
1895
1896 /* Open file */
1897 if ((fp = g_fopen(filename, "rb")) == NULL)
1898 return NULL;
1899 /* Skip queue header */
1900 while (fgets(buf, sizeof(buf), fp) != NULL) {
1901 /* new way */
1902 if ((!strncmp(buf, "X-Claws-End-Special-Headers: 1",
1903 strlen("X-Claws-End-Special-Headers:"))) ||
1904 (!strncmp(buf, "X-Sylpheed-End-Special-Headers: 1",
1905 strlen("X-Sylpheed-End-Special-Headers:"))))
1906 break;
1907 /* old way */
1908 if (buf[0] == '\r' || buf[0] == '\n') break;
1909 /* from other mailers */
1910 if (!strncmp(buf, "Date: ", 6)
1911 || !strncmp(buf, "To: ", 4)
1912 || !strncmp(buf, "From: ", 6)
1913 || !strncmp(buf, "Subject: ", 9)) {
1914 rewind(fp);
1915 break;
1916 }
1917 }
1918 offset = ftell(fp);
1919 fclose(fp);
1920
1921 mimeinfo = procmime_scan_file_with_offset(filename, offset);
1922
1923 return mimeinfo;
1924 }
1925
1926 typedef enum {
1927 ENC_AS_TOKEN,
1928 ENC_AS_QUOTED_STRING,
1929 ENC_AS_EXTENDED,
1930 ENC_TO_ASCII,
1931 } EncodeAs;
1932
1933 typedef struct _ParametersData {
1934 FILE *fp;
1935 guint len;
1936 guint ascii_only;
1937 } ParametersData;
1938
1939 static void write_parameters(gpointer key, gpointer value, gpointer user_data)
1940 {
1941 gchar *param = key;
1942 gchar *val = value, *valpos, *tmp;
1943 ParametersData *pdata = (ParametersData *)user_data;
1944 GString *buf = g_string_new("");
1945
1946 EncodeAs encas = ENC_AS_TOKEN;
1947
1948 for (valpos = val; *valpos != 0; valpos++) {
1949 if (!IS_ASCII(*valpos) || *valpos == '"') {
1950 encas = ENC_AS_EXTENDED;
1951 break;
1952 }
1953
1954 /* CTLs */
1955 if (((*valpos >= 0) && (*valpos < 037)) || (*valpos == 0177)) {
1956 encas = ENC_AS_QUOTED_STRING;
1957 continue;
1958 }
1959
1960 /* tspecials + SPACE */
1961 switch (*valpos) {
1962 case ' ':
1963 case '(':
1964 case ')':
1965 case '<':
1966 case '>':
1967 case '@':
1968 case ',':
1969 case ';':
1970 case ':':
1971 case '\\':
1972 case '\'':
1973 case '/':
1974 case '[':
1975 case ']':
1976 case '?':
1977 case '=':
1978 encas = ENC_AS_QUOTED_STRING;
1979 continue;
1980 }
1981 }
1982
1983 if (encas == ENC_AS_EXTENDED && pdata->ascii_only == TRUE)
1984 encas = ENC_TO_ASCII;
1985
1986 switch (encas) {
1987 case ENC_AS_TOKEN:
1988 g_string_append_printf(buf, "%s=%s", param, val);
1989 break;
1990
1991 case ENC_TO_ASCII:
1992 tmp = g_strdup(val);
1993 g_strcanon(tmp,
1994 " ()<>@,';:\\/[]?=.0123456789"
1995 "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
1996 "abcdefghijklmnopqrstuvwxyz",
1997 '_');
1998 g_string_append_printf(buf, "%s=\"%s\"", param, tmp);
1999 g_free(tmp);
2000 break;
2001
2002 case ENC_AS_QUOTED_STRING:
2003 g_string_append_printf(buf, "%s=\"%s\"", param, val);
2004 break;
2005
2006 case ENC_AS_EXTENDED:
2007 if (!g_utf8_validate(val, -1, NULL))
2008 g_string_append_printf(buf, "%s*=%s''", param,
2009 conv_get_locale_charset_str());
2010 else
2011 g_string_append_printf(buf, "%s*=%s''", param,
2012 CS_INTERNAL);
2013 for (valpos = val; *valpos != '\0'; valpos++) {
2014 if (IS_ASCII(*valpos) && isalnum(*valpos)) {
2015 g_string_append_printf(buf, "%c", *valpos);
2016 } else {
2017 gchar hexstr[3] = "XX";
2018 get_hex_str(hexstr, *valpos);
2019 g_string_append_printf(buf, "%%%s", hexstr);
2020 }
2021 }
2022 break;
2023 }
2024
2025 if (buf->str && strlen(buf->str)) {
2026 if (pdata->len + strlen(buf->str) + 2 > 76) {
2027 fprintf(pdata->fp, ";\n %s", buf->str);
2028 pdata->len = strlen(buf->str) + 1;
2029 } else {
2030 fprintf(pdata->fp, "; %s", buf->str);
2031 pdata->len += strlen(buf->str) + 2;
2032 }
2033 }
2034 g_string_free(buf, TRUE);
2035 }
2036
2037 void procmime_write_mime_header(MimeInfo *mimeinfo, FILE *fp)
2038 {
2039 struct TypeTable *type_table;
2040 ParametersData *pdata = g_new0(ParametersData, 1);
2041 debug_print("procmime_write_mime_header\n");
2042
2043 pdata->fp = fp;
2044 pdata->ascii_only = FALSE;
2045
2046 for (type_table = mime_type_table; type_table->str != NULL; type_table++)
2047 if (mimeinfo->type == type_table->type) {
2048 gchar *buf = g_strdup_printf(
2049 "Content-Type: %s/%s", type_table->str, mimeinfo->subtype);
2050 fprintf(fp, "%s", buf);
2051 pdata->len = strlen(buf);
2052 pdata->ascii_only = TRUE;
2053 g_free(buf);
2054 break;
2055 }
2056 g_hash_table_foreach(mimeinfo->typeparameters, write_parameters, pdata);
2057 g_free(pdata);
2058
2059 fprintf(fp, "\n");
2060
2061 if (mimeinfo->encoding_type != ENC_UNKNOWN)
2062 fprintf(fp, "Content-Transfer-Encoding: %s\n", procmime_get_encoding_str(mimeinfo->encoding_type));
2063
2064 if (mimeinfo->description != NULL)
2065 fprintf(fp, "Content-Description: %s\n", mimeinfo->description);
2066
2067 if (mimeinfo->id != NULL)
2068 fprintf(fp, "Content-ID: %s\n", mimeinfo->id);
2069
2070 if (mimeinfo->location != NULL)
2071 fprintf(fp, "Content-Location: %s\n", mimeinfo->location);
2072
2073 if (mimeinfo->disposition != DISPOSITIONTYPE_UNKNOWN) {
2074 ParametersData *pdata = g_new0(ParametersData, 1);
2075 gchar *buf = NULL;
2076 if (mimeinfo->disposition == DISPOSITIONTYPE_INLINE)
2077 buf = g_strdup("Content-Disposition: inline");
2078 else if (mimeinfo->disposition == DISPOSITIONTYPE_ATTACHMENT)
2079 buf = g_strdup("Content-Disposition: attachment");
2080 else
2081 buf = g_strdup("Content-Disposition: unknown");
2082
2083 fprintf(fp, "%s", buf);
2084 pdata->len = strlen(buf);
2085 g_free(buf);
2086
2087 pdata->fp = fp;
2088 pdata->ascii_only = FALSE;
2089
2090 g_hash_table_foreach(mimeinfo->dispositionparameters, write_parameters, pdata);
2091 g_free(pdata);
2092 fprintf(fp, "\n");
2093 }
2094
2095 fprintf(fp, "\n");
2096 }
2097
2098 gint procmime_write_message_rfc822(MimeInfo *mimeinfo, FILE *fp)
2099 {
2100 FILE *infp;
2101 GNode *childnode;
2102 MimeInfo *child;
2103 gchar buf[BUFFSIZE];
2104 gboolean skip = FALSE;;
2105
2106 debug_print("procmime_write_message_rfc822\n");
2107
2108 /* write header */
2109 switch (mimeinfo->content) {
2110 case MIMECONTENT_FILE:
2111 if ((infp = g_fopen(mimeinfo->data.filename, "rb")) == NULL) {
2112 FILE_OP_ERROR(mimeinfo->data.filename, "fopen");
2113 return -1;
2114 }
2115 fseek(infp, mimeinfo->offset, SEEK_SET);
2116 while (fgets(buf, sizeof(buf), infp) == buf) {
2117 if (buf[0] == '\n' && buf[1] == '\0')
2118 break;
2119 if (skip && (buf[0] == ' ' || buf[0] == '\t'))
2120 continue;
2121 if (g_ascii_strncasecmp(buf, "Mime-Version:", 13) == 0 ||
2122 g_ascii_strncasecmp(buf, "Content-Type:", 13) == 0 ||
2123 g_ascii_strncasecmp(buf, "Content-Transfer-Encoding:", 26) == 0 ||
2124 g_ascii_strncasecmp(buf, "Content-Description:", 20) == 0 ||
2125 g_ascii_strncasecmp(buf, "Content-ID:", 11) == 0 ||
2126 g_ascii_strncasecmp(buf, "Content-Location:", 17) == 0 ||
2127 g_ascii_strncasecmp(buf, "Content-Disposition:", 20) == 0) {
2128 skip = TRUE;
2129 continue;
2130 }
2131 fwrite(buf, sizeof(gchar), strlen(buf), fp);
2132 skip = FALSE;
2133 }
2134 fclose(infp);
2135 break;
2136
2137 case MIMECONTENT_MEM:
2138 fwrite(mimeinfo->data.mem,
2139 sizeof(gchar),
2140 strlen(mimeinfo->data.mem),
2141 fp);
2142 break;
2143
2144 default:
2145 break;
2146 }
2147
2148 childnode = mimeinfo->node->children;
2149 if (childnode == NULL)
2150 return -1;
2151
2152 child = (MimeInfo *) childnode->data;
2153 fprintf(fp, "Mime-Version: 1.0\n");
2154 procmime_write_mime_header(child, fp);
2155 return procmime_write_mimeinfo(child, fp);
2156 }
2157
2158 gint procmime_write_multipart(MimeInfo *mimeinfo, FILE *fp)
2159 {
2160 FILE *infp;
2161 GNode *childnode;
2162 gchar *boundary, *str, *str2;
2163 gchar buf[BUFFSIZE];
2164 gboolean firstboundary;
2165
2166 debug_print("procmime_write_multipart\n");
2167
2168 boundary = g_hash_table_lookup(mimeinfo->typeparameters, "boundary");
2169
2170 switch (mimeinfo->content) {
2171 case MIMECONTENT_FILE:
2172 if ((infp = g_fopen(mimeinfo->data.filename, "rb")) == NULL) {
2173 FILE_OP_ERROR(mimeinfo->data.filename, "fopen");
2174 return -1;
2175 }
2176 fseek(infp, mimeinfo->offset, SEEK_SET);
2177 while (fgets(buf, sizeof(buf), infp) == buf) {
2178 if (IS_BOUNDARY(buf, boundary, strlen(boundary)))
2179 break;
2180 fwrite(buf, sizeof(gchar), strlen(buf), fp);
2181 }
2182 fclose(infp);
2183 break;
2184
2185 case MIMECONTENT_MEM:
2186 str = g_strdup(mimeinfo->data.mem);
2187 if (((str2 = strstr(str, boundary)) != NULL) && ((str2 - str) >= 2) &&
2188 (*(str2 - 1) == '-') && (*(str2 - 2) == '-'))
2189 *(str2 - 2) = '\0';
2190 fwrite(str, sizeof(gchar), strlen(str), fp);
2191 g_free(str);
2192 break;
2193
2194 default:
2195 break;
2196 }
2197
2198 childnode = mimeinfo->node->children;
2199 firstboundary = TRUE;
2200 while (childnode != NULL) {
2201 MimeInfo *child = childnode->data;
2202
2203 if (firstboundary)
2204 firstboundary = FALSE;
2205 else
2206 fprintf(fp, "\n");
2207 fprintf(fp, "--%s\n", boundary);
2208
2209 procmime_write_mime_header(child, fp);
2210 if (procmime_write_mimeinfo(child, fp) < 0)
2211 return -1;
2212
2213 childnode = g_node_next_sibling(childnode);
2214 }
2215 fprintf(fp, "\n--%s--\n", boundary);
2216
2217 return 0;
2218 }
2219
2220 gint procmime_write_mimeinfo(MimeInfo *mimeinfo, FILE *fp)
2221 {
2222 FILE *infp;
2223
2224 debug_print("procmime_write_mimeinfo\n");
2225
2226 if (G_NODE_IS_LEAF(mimeinfo->node)) {
2227 switch (mimeinfo->content) {
2228 case MIMECONTENT_FILE:
2229 if ((infp = g_fopen(mimeinfo->data.filename, "rb")) == NULL) {
2230 FILE_OP_ERROR(mimeinfo->data.filename, "fopen");
2231 return -1;
2232 }
2233 copy_file_part_to_fp(infp, mimeinfo->offset, mimeinfo->length, fp);
2234 fclose(infp);
2235 return 0;
2236
2237 case MIMECONTENT_MEM:
2238 fwrite(mimeinfo->data.mem,
2239 sizeof(gchar),
2240 strlen(mimeinfo->data.mem),
2241 fp);
2242 return 0;
2243
2244 default:
2245 return 0;
2246 }
2247 } else {
2248 /* Call writer for mime type */
2249 switch (mimeinfo->type) {
2250 case MIMETYPE_MESSAGE:
2251 if (g_ascii_strcasecmp(mimeinfo->subtype, "rfc822") == 0) {
2252 return procmime_write_message_rfc822(mimeinfo, fp);
2253 }
2254 break;
2255
2256 case MIMETYPE_MULTIPART:
2257 return procmime_write_multipart(mimeinfo, fp);
2258
2259 default:
2260 break;
2261 }
2262
2263 return -1;
2264 }
2265
2266 return 0;
2267 }
2268
2269 gchar *procmime_get_part_file_name(MimeInfo *mimeinfo)
2270 {
2271 gchar *base;
2272
2273 if ((mimeinfo->type == MIMETYPE_TEXT) && !g_ascii_strcasecmp(mimeinfo->subtype, "html"))
2274 base = g_strdup("mimetmp.html");
2275 else {
2276 const gchar *basetmp;
2277 gchar *basename;
2278
2279 basetmp = procmime_mimeinfo_get_parameter(mimeinfo, "filename");
2280 if (basetmp == NULL)
2281 basetmp = procmime_mimeinfo_get_parameter(mimeinfo, "name");
2282 if (basetmp == NULL)
2283 basetmp = "mimetmp";
2284 basename = g_path_get_basename(basetmp);
2285 if (*basename == '\0') {
2286 g_free(basename);
2287 basename = g_strdup("mimetmp");
2288 }
2289 base = conv_filename_from_utf8(basename);
2290 g_free(basename);
2291 subst_for_shellsafe_filename(base);
2292 }
2293
2294 return base;
2295 }
2296