1 /*
2 * Claws Mail -- a GTK+ based, lightweight, and fast e-mail client
3 * Copyright (C) 1999-2020 The Claws Mail Team and Hiroyuki Yamamoto
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 3 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, see <http://www.gnu.org/licenses/>.
17 *
18 * The code of the g_utf8_substring function below is owned by
19 * Matthias Clasen <matthiasc@src.gnome.org>/<mclasen@redhat.com>
20 * and is got from GLIB 2.30: https://git.gnome.org/browse/glib/commit/
21 * ?h=glib-2-30&id=9eb65dd3ed5e1a9638595cbe10699c7606376511
22 *
23 * GLib 2.30 is licensed under GPL v2 or later and:
24 * Copyright (C) 1999 Tom Tromey
25 * Copyright (C) 2000 Red Hat, Inc.
26 *
27 * https://git.gnome.org/browse/glib/tree/glib/gutf8.c
28 * ?h=glib-2-30&id=9eb65dd3ed5e1a9638595cbe10699c7606376511
29 */
30
31 #ifdef HAVE_CONFIG_H
32 # include "config.h"
33 #include "claws-features.h"
34 #endif
35
36 #include "defs.h"
37
38 #include <glib.h>
39 #include <gio/gio.h>
40
41 #include <glib/gi18n.h>
42
43 #ifdef USE_PTHREAD
44 #include <pthread.h>
45 #endif
46
47 #include <stdio.h>
48 #include <string.h>
49 #include <ctype.h>
50 #include <errno.h>
51 #include <sys/param.h>
52 #ifdef G_OS_WIN32
53 # include <ws2tcpip.h>
54 #else
55 # include <sys/socket.h>
56 #endif
57
58 #if (HAVE_WCTYPE_H && HAVE_WCHAR_H)
59 # include <wchar.h>
60 # include <wctype.h>
61 #endif
62 #include <stdlib.h>
63 #include <sys/stat.h>
64 #include <unistd.h>
65 #include <stdarg.h>
66 #include <sys/types.h>
67 #if HAVE_SYS_WAIT_H
68 # include <sys/wait.h>
69 #endif
70 #include <dirent.h>
71 #include <time.h>
72 #include <regex.h>
73
74 #ifdef G_OS_UNIX
75 #include <sys/utsname.h>
76 #endif
77
78 #include <fcntl.h>
79
80 #ifdef G_OS_WIN32
81 # include <direct.h>
82 # include <io.h>
83 # include <w32lib.h>
84 #endif
85
86 #include "utils.h"
87 #include "socket.h"
88 #include "codeconv.h"
89 #include "tlds.h"
90 #include "timing.h"
91 #include "file-utils.h"
92
93 #define BUFFSIZE 8192
94
95 static gboolean debug_mode = FALSE;
96
slist_copy_deep(GSList * list,GCopyFunc func)97 GSList *slist_copy_deep(GSList *list, GCopyFunc func)
98 {
99 #if GLIB_CHECK_VERSION(2, 34, 0)
100 return g_slist_copy_deep(list, func, NULL);
101 #else
102 GSList *res = g_slist_copy(list);
103 GSList *walk = res;
104 while (walk) {
105 walk->data = func(walk->data, NULL);
106 walk = walk->next;
107 }
108 return res;
109 #endif
110 }
111
list_free_strings_full(GList * list)112 void list_free_strings_full(GList *list)
113 {
114 g_list_free_full(list, (GDestroyNotify)g_free);
115 }
116
slist_free_strings_full(GSList * list)117 void slist_free_strings_full(GSList *list)
118 {
119 g_slist_free_full(list, (GDestroyNotify)g_free);
120 }
121
hash_free_strings_func(gpointer key,gpointer value,gpointer data)122 static void hash_free_strings_func(gpointer key, gpointer value, gpointer data)
123 {
124 g_free(key);
125 }
126
hash_free_strings(GHashTable * table)127 void hash_free_strings(GHashTable *table)
128 {
129 g_hash_table_foreach(table, hash_free_strings_func, NULL);
130 }
131
str_case_equal(gconstpointer v,gconstpointer v2)132 gint str_case_equal(gconstpointer v, gconstpointer v2)
133 {
134 return g_ascii_strcasecmp((const gchar *)v, (const gchar *)v2) == 0;
135 }
136
str_case_hash(gconstpointer key)137 guint str_case_hash(gconstpointer key)
138 {
139 const gchar *p = key;
140 guint h = *p;
141
142 if (h) {
143 h = g_ascii_tolower(h);
144 for (p += 1; *p != '\0'; p++)
145 h = (h << 5) - h + g_ascii_tolower(*p);
146 }
147
148 return h;
149 }
150
to_number(const gchar * nstr)151 gint to_number(const gchar *nstr)
152 {
153 register const gchar *p;
154
155 if (*nstr == '\0') return -1;
156
157 for (p = nstr; *p != '\0'; p++)
158 if (!g_ascii_isdigit(*p)) return -1;
159
160 return atoi(nstr);
161 }
162
163 /* convert integer into string,
164 nstr must be not lower than 11 characters length */
itos_buf(gchar * nstr,gint n)165 gchar *itos_buf(gchar *nstr, gint n)
166 {
167 g_snprintf(nstr, 11, "%d", n);
168 return nstr;
169 }
170
171 /* convert integer into string */
itos(gint n)172 gchar *itos(gint n)
173 {
174 static gchar nstr[11];
175
176 return itos_buf(nstr, n);
177 }
178
179 #define divide(num,divisor,i,d) \
180 { \
181 i = num >> divisor; \
182 d = num & ((1<<divisor)-1); \
183 d = (d*100) >> divisor; \
184 }
185
186
187 /*!
188 * \brief Convert a given size in bytes in a human-readable string
189 *
190 * \param size The size expressed in bytes to convert in string
191 * \return The string that respresents the size in an human-readable way
192 */
to_human_readable(goffset size)193 gchar *to_human_readable(goffset size)
194 {
195 static gchar str[14];
196 static gchar *b_format = NULL, *kb_format = NULL,
197 *mb_format = NULL, *gb_format = NULL;
198 register int t = 0, r = 0;
199 if (b_format == NULL) {
200 b_format = _("%dB");
201 kb_format = _("%d.%02dKB");
202 mb_format = _("%d.%02dMB");
203 gb_format = _("%.2fGB");
204 }
205
206 if (size < (goffset)1024) {
207 g_snprintf(str, sizeof(str), b_format, (gint)size);
208 return str;
209 } else if (size >> 10 < (goffset)1024) {
210 divide(size, 10, t, r);
211 g_snprintf(str, sizeof(str), kb_format, t, r);
212 return str;
213 } else if (size >> 20 < (goffset)1024) {
214 divide(size, 20, t, r);
215 g_snprintf(str, sizeof(str), mb_format, t, r);
216 return str;
217 } else {
218 g_snprintf(str, sizeof(str), gb_format, (gfloat)(size >> 30));
219 return str;
220 }
221 }
222
223 /* compare paths */
path_cmp(const gchar * s1,const gchar * s2)224 gint path_cmp(const gchar *s1, const gchar *s2)
225 {
226 gint len1, len2;
227 int rc;
228 #ifdef G_OS_WIN32
229 gchar *s1buf, *s2buf;
230 #endif
231
232 if (s1 == NULL || s2 == NULL) return -1;
233 if (*s1 == '\0' || *s2 == '\0') return -1;
234
235 #ifdef G_OS_WIN32
236 s1buf = g_strdup (s1);
237 s2buf = g_strdup (s2);
238 subst_char (s1buf, '/', G_DIR_SEPARATOR);
239 subst_char (s2buf, '/', G_DIR_SEPARATOR);
240 s1 = s1buf;
241 s2 = s2buf;
242 #endif /* !G_OS_WIN32 */
243
244 len1 = strlen(s1);
245 len2 = strlen(s2);
246
247 if (s1[len1 - 1] == G_DIR_SEPARATOR) len1--;
248 if (s2[len2 - 1] == G_DIR_SEPARATOR) len2--;
249
250 rc = strncmp(s1, s2, MAX(len1, len2));
251 #ifdef G_OS_WIN32
252 g_free (s1buf);
253 g_free (s2buf);
254 #endif /* !G_OS_WIN32 */
255 return rc;
256 }
257
258 /* remove trailing return code */
strretchomp(gchar * str)259 gchar *strretchomp(gchar *str)
260 {
261 register gchar *s;
262
263 if (!*str) return str;
264
265 for (s = str + strlen(str) - 1;
266 s >= str && (*s == '\n' || *s == '\r');
267 s--)
268 *s = '\0';
269
270 return str;
271 }
272
273 /* remove trailing character */
strtailchomp(gchar * str,gchar tail_char)274 gchar *strtailchomp(gchar *str, gchar tail_char)
275 {
276 register gchar *s;
277
278 if (!*str) return str;
279 if (tail_char == '\0') return str;
280
281 for (s = str + strlen(str) - 1; s >= str && *s == tail_char; s--)
282 *s = '\0';
283
284 return str;
285 }
286
287 /* remove CR (carriage return) */
strcrchomp(gchar * str)288 gchar *strcrchomp(gchar *str)
289 {
290 register gchar *s;
291
292 if (!*str) return str;
293
294 s = str + strlen(str) - 1;
295 if (*s == '\n' && s > str && *(s - 1) == '\r') {
296 *(s - 1) = '\n';
297 *s = '\0';
298 }
299
300 return str;
301 }
302
303 #ifndef HAVE_STRCASESTR
304 /* Similar to `strstr' but this function ignores the case of both strings. */
strcasestr(const gchar * haystack,const gchar * needle)305 gchar *strcasestr(const gchar *haystack, const gchar *needle)
306 {
307 size_t haystack_len = strlen(haystack);
308
309 return strncasestr(haystack, haystack_len, needle);
310 }
311 #endif /* HAVE_STRCASESTR */
312
strncasestr(const gchar * haystack,gint haystack_len,const gchar * needle)313 gchar *strncasestr(const gchar *haystack, gint haystack_len, const gchar *needle)
314 {
315 register size_t needle_len;
316
317 needle_len = strlen(needle);
318
319 if (haystack_len < needle_len || needle_len == 0)
320 return NULL;
321
322 while (haystack_len >= needle_len) {
323 if (!g_ascii_strncasecmp(haystack, needle, needle_len))
324 return (gchar *)haystack;
325 else {
326 haystack++;
327 haystack_len--;
328 }
329 }
330
331 return NULL;
332 }
333
my_memmem(gconstpointer haystack,size_t haystacklen,gconstpointer needle,size_t needlelen)334 gpointer my_memmem(gconstpointer haystack, size_t haystacklen,
335 gconstpointer needle, size_t needlelen)
336 {
337 const gchar *haystack_ = (const gchar *)haystack;
338 const gchar *needle_ = (const gchar *)needle;
339 const gchar *haystack_cur = (const gchar *)haystack;
340 size_t haystack_left = haystacklen;
341
342 if (needlelen == 1)
343 return memchr(haystack_, *needle_, haystacklen);
344
345 while ((haystack_cur = memchr(haystack_cur, *needle_, haystack_left))
346 != NULL) {
347 if (haystacklen - (haystack_cur - haystack_) < needlelen)
348 break;
349 if (memcmp(haystack_cur + 1, needle_ + 1, needlelen - 1) == 0)
350 return (gpointer)haystack_cur;
351 else{
352 haystack_cur++;
353 haystack_left = haystacklen - (haystack_cur - haystack_);
354 }
355 }
356
357 return NULL;
358 }
359
360 /* Copy no more than N characters of SRC to DEST, with NULL terminating. */
strncpy2(gchar * dest,const gchar * src,size_t n)361 gchar *strncpy2(gchar *dest, const gchar *src, size_t n)
362 {
363 register const gchar *s = src;
364 register gchar *d = dest;
365
366 while (--n && *s)
367 *d++ = *s++;
368 *d = '\0';
369
370 return dest;
371 }
372
373
374 /* Examine if next block is non-ASCII string */
is_next_nonascii(const gchar * s)375 gboolean is_next_nonascii(const gchar *s)
376 {
377 const gchar *p;
378
379 /* skip head space */
380 for (p = s; *p != '\0' && g_ascii_isspace(*p); p++)
381 ;
382 for (; *p != '\0' && !g_ascii_isspace(*p); p++) {
383 if (*(guchar *)p > 127 || *(guchar *)p < 32)
384 return TRUE;
385 }
386
387 return FALSE;
388 }
389
get_next_word_len(const gchar * s)390 gint get_next_word_len(const gchar *s)
391 {
392 gint len = 0;
393
394 for (; *s != '\0' && !g_ascii_isspace(*s); s++, len++)
395 ;
396
397 return len;
398 }
399
trim_subject_for_compare(gchar * str)400 static void trim_subject_for_compare(gchar *str)
401 {
402 gchar *srcp;
403
404 eliminate_parenthesis(str, '[', ']');
405 eliminate_parenthesis(str, '(', ')');
406 g_strstrip(str);
407
408 srcp = str + subject_get_prefix_length(str);
409 if (srcp != str)
410 memmove(str, srcp, strlen(srcp) + 1);
411 }
412
trim_subject_for_sort(gchar * str)413 static void trim_subject_for_sort(gchar *str)
414 {
415 gchar *srcp;
416
417 g_strstrip(str);
418
419 srcp = str + subject_get_prefix_length(str);
420 if (srcp != str)
421 memmove(str, srcp, strlen(srcp) + 1);
422 }
423
424 /* compare subjects */
subject_compare(const gchar * s1,const gchar * s2)425 gint subject_compare(const gchar *s1, const gchar *s2)
426 {
427 gchar *str1, *str2;
428
429 if (!s1 || !s2) return -1;
430 if (!*s1 || !*s2) return -1;
431
432 Xstrdup_a(str1, s1, return -1);
433 Xstrdup_a(str2, s2, return -1);
434
435 trim_subject_for_compare(str1);
436 trim_subject_for_compare(str2);
437
438 if (!*str1 || !*str2) return -1;
439
440 return strcmp(str1, str2);
441 }
442
subject_compare_for_sort(const gchar * s1,const gchar * s2)443 gint subject_compare_for_sort(const gchar *s1, const gchar *s2)
444 {
445 gchar *str1, *str2;
446
447 if (!s1 || !s2) return -1;
448
449 Xstrdup_a(str1, s1, return -1);
450 Xstrdup_a(str2, s2, return -1);
451
452 trim_subject_for_sort(str1);
453 trim_subject_for_sort(str2);
454
455 return g_utf8_collate(str1, str2);
456 }
457
trim_subject(gchar * str)458 void trim_subject(gchar *str)
459 {
460 register gchar *srcp;
461 gchar op, cl;
462 gint in_brace;
463
464 g_strstrip(str);
465
466 srcp = str + subject_get_prefix_length(str);
467
468 if (*srcp == '[') {
469 op = '[';
470 cl = ']';
471 } else if (*srcp == '(') {
472 op = '(';
473 cl = ')';
474 } else
475 op = 0;
476
477 if (op) {
478 ++srcp;
479 in_brace = 1;
480 while (*srcp) {
481 if (*srcp == op)
482 in_brace++;
483 else if (*srcp == cl)
484 in_brace--;
485 srcp++;
486 if (in_brace == 0)
487 break;
488 }
489 }
490 while (g_ascii_isspace(*srcp)) srcp++;
491 memmove(str, srcp, strlen(srcp) + 1);
492 }
493
eliminate_parenthesis(gchar * str,gchar op,gchar cl)494 void eliminate_parenthesis(gchar *str, gchar op, gchar cl)
495 {
496 register gchar *srcp, *destp;
497 gint in_brace;
498
499 destp = str;
500
501 while ((destp = strchr(destp, op))) {
502 in_brace = 1;
503 srcp = destp + 1;
504 while (*srcp) {
505 if (*srcp == op)
506 in_brace++;
507 else if (*srcp == cl)
508 in_brace--;
509 srcp++;
510 if (in_brace == 0)
511 break;
512 }
513 while (g_ascii_isspace(*srcp)) srcp++;
514 memmove(destp, srcp, strlen(srcp) + 1);
515 }
516 }
517
extract_parenthesis(gchar * str,gchar op,gchar cl)518 void extract_parenthesis(gchar *str, gchar op, gchar cl)
519 {
520 register gchar *srcp, *destp;
521 gint in_brace;
522
523 destp = str;
524
525 while ((srcp = strchr(destp, op))) {
526 if (destp > str)
527 *destp++ = ' ';
528 memmove(destp, srcp + 1, strlen(srcp));
529 in_brace = 1;
530 while(*destp) {
531 if (*destp == op)
532 in_brace++;
533 else if (*destp == cl)
534 in_brace--;
535
536 if (in_brace == 0)
537 break;
538
539 destp++;
540 }
541 }
542 *destp = '\0';
543 }
544
extract_parenthesis_with_skip_quote(gchar * str,gchar quote_chr,gchar op,gchar cl)545 static void extract_parenthesis_with_skip_quote(gchar *str, gchar quote_chr,
546 gchar op, gchar cl)
547 {
548 register gchar *srcp, *destp;
549 gint in_brace;
550 gboolean in_quote = FALSE;
551
552 destp = str;
553
554 while ((srcp = strchr_with_skip_quote(destp, quote_chr, op))) {
555 if (destp > str)
556 *destp++ = ' ';
557 memmove(destp, srcp + 1, strlen(srcp));
558 in_brace = 1;
559 while(*destp) {
560 if (*destp == op && !in_quote)
561 in_brace++;
562 else if (*destp == cl && !in_quote)
563 in_brace--;
564 else if (*destp == quote_chr)
565 in_quote ^= TRUE;
566
567 if (in_brace == 0)
568 break;
569
570 destp++;
571 }
572 }
573 *destp = '\0';
574 }
575
extract_quote(gchar * str,gchar quote_chr)576 void extract_quote(gchar *str, gchar quote_chr)
577 {
578 register gchar *p;
579
580 if ((str = strchr(str, quote_chr))) {
581 p = str;
582 while ((p = strchr(p + 1, quote_chr)) && (p[-1] == '\\')) {
583 memmove(p - 1, p, strlen(p) + 1);
584 p--;
585 }
586 if(p) {
587 *p = '\0';
588 memmove(str, str + 1, p - str);
589 }
590 }
591 }
592
593 /* Returns a newly allocated string with all quote_chr not at the beginning
594 or the end of str escaped with '\' or the given str if not required. */
escape_internal_quotes(gchar * str,gchar quote_chr)595 gchar *escape_internal_quotes(gchar *str, gchar quote_chr)
596 {
597 register gchar *p, *q;
598 gchar *qstr;
599 int k = 0, l = 0;
600
601 if (str == NULL || *str == '\0')
602 return str;
603
604 /* search for unescaped quote_chr */
605 p = str;
606 if (*p == quote_chr)
607 ++p, ++l;
608 while (*p) {
609 if (*p == quote_chr && *(p - 1) != '\\' && *(p + 1) != '\0')
610 ++k;
611 ++p, ++l;
612 }
613 if (!k) /* nothing to escape */
614 return str;
615
616 /* unescaped quote_chr found */
617 qstr = g_malloc(l + k + 1);
618 p = str;
619 q = qstr;
620 if (*p == quote_chr) {
621 *q = quote_chr;
622 ++p, ++q;
623 }
624 while (*p) {
625 if (*p == quote_chr && *(p - 1) != '\\' && *(p + 1) != '\0')
626 *q++ = '\\';
627 *q++ = *p++;
628 }
629 *q = '\0';
630
631 return qstr;
632 }
633
eliminate_address_comment(gchar * str)634 void eliminate_address_comment(gchar *str)
635 {
636 register gchar *srcp, *destp;
637 gint in_brace;
638
639 destp = str;
640
641 while ((destp = strchr(destp, '"'))) {
642 if ((srcp = strchr(destp + 1, '"'))) {
643 srcp++;
644 if (*srcp == '@') {
645 destp = srcp + 1;
646 } else {
647 while (g_ascii_isspace(*srcp)) srcp++;
648 memmove(destp, srcp, strlen(srcp) + 1);
649 }
650 } else {
651 *destp = '\0';
652 break;
653 }
654 }
655
656 destp = str;
657
658 while ((destp = strchr_with_skip_quote(destp, '"', '('))) {
659 in_brace = 1;
660 srcp = destp + 1;
661 while (*srcp) {
662 if (*srcp == '(')
663 in_brace++;
664 else if (*srcp == ')')
665 in_brace--;
666 srcp++;
667 if (in_brace == 0)
668 break;
669 }
670 while (g_ascii_isspace(*srcp)) srcp++;
671 memmove(destp, srcp, strlen(srcp) + 1);
672 }
673 }
674
strchr_with_skip_quote(const gchar * str,gint quote_chr,gint c)675 gchar *strchr_with_skip_quote(const gchar *str, gint quote_chr, gint c)
676 {
677 gboolean in_quote = FALSE;
678
679 while (*str) {
680 if (*str == c && !in_quote)
681 return (gchar *)str;
682 if (*str == quote_chr)
683 in_quote ^= TRUE;
684 str++;
685 }
686
687 return NULL;
688 }
689
extract_address(gchar * str)690 void extract_address(gchar *str)
691 {
692 cm_return_if_fail(str != NULL);
693 eliminate_address_comment(str);
694 if (strchr_with_skip_quote(str, '"', '<'))
695 extract_parenthesis_with_skip_quote(str, '"', '<', '>');
696 g_strstrip(str);
697 }
698
extract_list_id_str(gchar * str)699 void extract_list_id_str(gchar *str)
700 {
701 if (strchr_with_skip_quote(str, '"', '<'))
702 extract_parenthesis_with_skip_quote(str, '"', '<', '>');
703 g_strstrip(str);
704 }
705
address_list_append_real(GSList * addr_list,const gchar * str,gboolean removecomments)706 static GSList *address_list_append_real(GSList *addr_list, const gchar *str, gboolean removecomments)
707 {
708 gchar *work;
709 gchar *workp;
710
711 if (!str) return addr_list;
712
713 Xstrdup_a(work, str, return addr_list);
714
715 if (removecomments)
716 eliminate_address_comment(work);
717 workp = work;
718
719 while (workp && *workp) {
720 gchar *p, *next;
721
722 if ((p = strchr_with_skip_quote(workp, '"', ','))) {
723 *p = '\0';
724 next = p + 1;
725 } else
726 next = NULL;
727
728 if (removecomments && strchr_with_skip_quote(workp, '"', '<'))
729 extract_parenthesis_with_skip_quote
730 (workp, '"', '<', '>');
731
732 g_strstrip(workp);
733 if (*workp)
734 addr_list = g_slist_append(addr_list, g_strdup(workp));
735
736 workp = next;
737 }
738
739 return addr_list;
740 }
741
address_list_append(GSList * addr_list,const gchar * str)742 GSList *address_list_append(GSList *addr_list, const gchar *str)
743 {
744 return address_list_append_real(addr_list, str, TRUE);
745 }
746
address_list_append_with_comments(GSList * addr_list,const gchar * str)747 GSList *address_list_append_with_comments(GSList *addr_list, const gchar *str)
748 {
749 return address_list_append_real(addr_list, str, FALSE);
750 }
751
references_list_prepend(GSList * msgid_list,const gchar * str)752 GSList *references_list_prepend(GSList *msgid_list, const gchar *str)
753 {
754 const gchar *strp;
755
756 if (!str) return msgid_list;
757 strp = str;
758
759 while (strp && *strp) {
760 const gchar *start, *end;
761 gchar *msgid;
762
763 if ((start = strchr(strp, '<')) != NULL) {
764 end = strchr(start + 1, '>');
765 if (!end) break;
766 } else
767 break;
768
769 msgid = g_strndup(start + 1, end - start - 1);
770 g_strstrip(msgid);
771 if (*msgid)
772 msgid_list = g_slist_prepend(msgid_list, msgid);
773 else
774 g_free(msgid);
775
776 strp = end + 1;
777 }
778
779 return msgid_list;
780 }
781
references_list_append(GSList * msgid_list,const gchar * str)782 GSList *references_list_append(GSList *msgid_list, const gchar *str)
783 {
784 GSList *list;
785
786 list = references_list_prepend(NULL, str);
787 list = g_slist_reverse(list);
788 msgid_list = g_slist_concat(msgid_list, list);
789
790 return msgid_list;
791 }
792
newsgroup_list_append(GSList * group_list,const gchar * str)793 GSList *newsgroup_list_append(GSList *group_list, const gchar *str)
794 {
795 gchar *work;
796 gchar *workp;
797
798 if (!str) return group_list;
799
800 Xstrdup_a(work, str, return group_list);
801
802 workp = work;
803
804 while (workp && *workp) {
805 gchar *p, *next;
806
807 if ((p = strchr_with_skip_quote(workp, '"', ','))) {
808 *p = '\0';
809 next = p + 1;
810 } else
811 next = NULL;
812
813 g_strstrip(workp);
814 if (*workp)
815 group_list = g_slist_append(group_list,
816 g_strdup(workp));
817
818 workp = next;
819 }
820
821 return group_list;
822 }
823
add_history(GList * list,const gchar * str)824 GList *add_history(GList *list, const gchar *str)
825 {
826 GList *old;
827 gchar *oldstr;
828
829 cm_return_val_if_fail(str != NULL, list);
830
831 old = g_list_find_custom(list, (gpointer)str, (GCompareFunc)g_strcmp0);
832 if (old) {
833 oldstr = old->data;
834 list = g_list_remove(list, old->data);
835 g_free(oldstr);
836 } else if (g_list_length(list) >= MAX_HISTORY_SIZE) {
837 GList *last;
838
839 last = g_list_last(list);
840 if (last) {
841 oldstr = last->data;
842 list = g_list_remove(list, last->data);
843 g_free(oldstr);
844 }
845 }
846
847 list = g_list_prepend(list, g_strdup(str));
848
849 return list;
850 }
851
remove_return(gchar * str)852 void remove_return(gchar *str)
853 {
854 register gchar *p = str;
855
856 while (*p) {
857 if (*p == '\n' || *p == '\r')
858 memmove(p, p + 1, strlen(p));
859 else
860 p++;
861 }
862 }
863
remove_space(gchar * str)864 void remove_space(gchar *str)
865 {
866 register gchar *p = str;
867 register gint spc;
868
869 while (*p) {
870 spc = 0;
871 while (g_ascii_isspace(*(p + spc)))
872 spc++;
873 if (spc)
874 memmove(p, p + spc, strlen(p + spc) + 1);
875 else
876 p++;
877 }
878 }
879
unfold_line(gchar * str)880 void unfold_line(gchar *str)
881 {
882 register gchar *ch;
883 register gunichar c;
884 register gint len;
885
886 ch = str; /* iterator for source string */
887
888 while (*ch != 0) {
889 c = g_utf8_get_char_validated(ch, -1);
890
891 if (c == (gunichar)-1 || c == (gunichar)-2) {
892 /* non-unicode byte, move past it */
893 ch++;
894 continue;
895 }
896
897 len = g_unichar_to_utf8(c, NULL);
898
899 if ((!g_unichar_isdefined(c) || !g_unichar_isprint(c) ||
900 g_unichar_isspace(c)) && c != 173) {
901 /* replace anything bad or whitespacey with a single space */
902 *ch = ' ';
903 ch++;
904 if (len > 1) {
905 /* move rest of the string forwards, since we just replaced
906 * a multi-byte sequence with one byte */
907 memmove(ch, ch + len-1, strlen(ch + len-1) + 1);
908 }
909 } else {
910 /* A valid unicode character, copy it. */
911 ch += len;
912 }
913 }
914 }
915
subst_char(gchar * str,gchar orig,gchar subst)916 void subst_char(gchar *str, gchar orig, gchar subst)
917 {
918 register gchar *p = str;
919
920 while (*p) {
921 if (*p == orig)
922 *p = subst;
923 p++;
924 }
925 }
926
subst_chars(gchar * str,gchar * orig,gchar subst)927 void subst_chars(gchar *str, gchar *orig, gchar subst)
928 {
929 register gchar *p = str;
930
931 while (*p) {
932 if (strchr(orig, *p) != NULL)
933 *p = subst;
934 p++;
935 }
936 }
937
subst_for_filename(gchar * str)938 void subst_for_filename(gchar *str)
939 {
940 if (!str)
941 return;
942 #ifdef G_OS_WIN32
943 subst_chars(str, "\t\r\n\\/*?:", '_');
944 #else
945 subst_chars(str, "\t\r\n\\/*", '_');
946 #endif
947 }
948
subst_for_shellsafe_filename(gchar * str)949 void subst_for_shellsafe_filename(gchar *str)
950 {
951 if (!str)
952 return;
953 subst_for_filename(str);
954 subst_chars(str, " \"'|&;()<>'!{}[]",'_');
955 }
956
is_ascii_str(const gchar * str)957 gboolean is_ascii_str(const gchar *str)
958 {
959 const guchar *p = (const guchar *)str;
960
961 while (*p != '\0') {
962 if (*p != '\t' && *p != ' ' &&
963 *p != '\r' && *p != '\n' &&
964 (*p < 32 || *p >= 127))
965 return FALSE;
966 p++;
967 }
968
969 return TRUE;
970 }
971
line_has_quote_char_last(const gchar * str,const gchar * quote_chars)972 static const gchar * line_has_quote_char_last(const gchar * str, const gchar *quote_chars)
973 {
974 gchar * position = NULL;
975 gchar * tmp_pos = NULL;
976 int i;
977
978 if (str == NULL || quote_chars == NULL)
979 return NULL;
980
981 for (i = 0; i < strlen(quote_chars); i++) {
982 tmp_pos = strrchr (str, quote_chars[i]);
983 if(position == NULL
984 || (tmp_pos != NULL && position <= tmp_pos) )
985 position = tmp_pos;
986 }
987 return position;
988 }
989
get_quote_level(const gchar * str,const gchar * quote_chars)990 gint get_quote_level(const gchar *str, const gchar *quote_chars)
991 {
992 const gchar *first_pos;
993 const gchar *last_pos;
994 const gchar *p = str;
995 gint quote_level = -1;
996
997 /* speed up line processing by only searching to the last '>' */
998 if ((first_pos = line_has_quote_char(str, quote_chars)) != NULL) {
999 /* skip a line if it contains a '<' before the initial '>' */
1000 if (memchr(str, '<', first_pos - str) != NULL)
1001 return -1;
1002 last_pos = line_has_quote_char_last(first_pos, quote_chars);
1003 } else
1004 return -1;
1005
1006 while (p <= last_pos) {
1007 while (p < last_pos) {
1008 if (g_ascii_isspace(*p))
1009 p++;
1010 else
1011 break;
1012 }
1013
1014 if (strchr(quote_chars, *p))
1015 quote_level++;
1016 else if (*p != '-' && !g_ascii_isspace(*p) && p <= last_pos) {
1017 /* any characters are allowed except '-','<' and space */
1018 while (*p != '-' && *p != '<'
1019 && !strchr(quote_chars, *p)
1020 && !g_ascii_isspace(*p)
1021 && p < last_pos)
1022 p++;
1023 if (strchr(quote_chars, *p))
1024 quote_level++;
1025 else
1026 break;
1027 }
1028
1029 p++;
1030 }
1031
1032 return quote_level;
1033 }
1034
check_line_length(const gchar * str,gint max_chars,gint * line)1035 gint check_line_length(const gchar *str, gint max_chars, gint *line)
1036 {
1037 const gchar *p = str, *q;
1038 gint cur_line = 0, len;
1039
1040 while ((q = strchr(p, '\n')) != NULL) {
1041 len = q - p + 1;
1042 if (len > max_chars) {
1043 if (line)
1044 *line = cur_line;
1045 return -1;
1046 }
1047 p = q + 1;
1048 ++cur_line;
1049 }
1050
1051 len = strlen(p);
1052 if (len > max_chars) {
1053 if (line)
1054 *line = cur_line;
1055 return -1;
1056 }
1057
1058 return 0;
1059 }
1060
line_has_quote_char(const gchar * str,const gchar * quote_chars)1061 const gchar * line_has_quote_char(const gchar * str, const gchar *quote_chars)
1062 {
1063 gchar * position = NULL;
1064 gchar * tmp_pos = NULL;
1065 int i;
1066
1067 if (str == NULL || quote_chars == NULL)
1068 return NULL;
1069
1070 for (i = 0; i < strlen(quote_chars); i++) {
1071 tmp_pos = strchr (str, quote_chars[i]);
1072 if(position == NULL
1073 || (tmp_pos != NULL && position >= tmp_pos) )
1074 position = tmp_pos;
1075 }
1076 return position;
1077 }
1078
strstr_with_skip_quote(const gchar * haystack,const gchar * needle)1079 static gchar *strstr_with_skip_quote(const gchar *haystack, const gchar *needle)
1080 {
1081 register guint haystack_len, needle_len;
1082 gboolean in_squote = FALSE, in_dquote = FALSE;
1083
1084 haystack_len = strlen(haystack);
1085 needle_len = strlen(needle);
1086
1087 if (haystack_len < needle_len || needle_len == 0)
1088 return NULL;
1089
1090 while (haystack_len >= needle_len) {
1091 if (!in_squote && !in_dquote &&
1092 !strncmp(haystack, needle, needle_len))
1093 return (gchar *)haystack;
1094
1095 /* 'foo"bar"' -> foo"bar"
1096 "foo'bar'" -> foo'bar' */
1097 if (*haystack == '\'') {
1098 if (in_squote)
1099 in_squote = FALSE;
1100 else if (!in_dquote)
1101 in_squote = TRUE;
1102 } else if (*haystack == '\"') {
1103 if (in_dquote)
1104 in_dquote = FALSE;
1105 else if (!in_squote)
1106 in_dquote = TRUE;
1107 } else if (*haystack == '\\') {
1108 haystack++;
1109 haystack_len--;
1110 }
1111
1112 haystack++;
1113 haystack_len--;
1114 }
1115
1116 return NULL;
1117 }
1118
strsplit_with_quote(const gchar * str,const gchar * delim,gint max_tokens)1119 gchar **strsplit_with_quote(const gchar *str, const gchar *delim,
1120 gint max_tokens)
1121 {
1122 GSList *string_list = NULL, *slist;
1123 gchar **str_array, *s, *new_str;
1124 guint i, n = 1, len;
1125
1126 cm_return_val_if_fail(str != NULL, NULL);
1127 cm_return_val_if_fail(delim != NULL, NULL);
1128
1129 if (max_tokens < 1)
1130 max_tokens = G_MAXINT;
1131
1132 s = strstr_with_skip_quote(str, delim);
1133 if (s) {
1134 guint delimiter_len = strlen(delim);
1135
1136 do {
1137 len = s - str;
1138 new_str = g_strndup(str, len);
1139
1140 if (new_str[0] == '\'' || new_str[0] == '\"') {
1141 if (new_str[len - 1] == new_str[0]) {
1142 new_str[len - 1] = '\0';
1143 memmove(new_str, new_str + 1, len - 1);
1144 }
1145 }
1146 string_list = g_slist_prepend(string_list, new_str);
1147 n++;
1148 str = s + delimiter_len;
1149 s = strstr_with_skip_quote(str, delim);
1150 } while (--max_tokens && s);
1151 }
1152
1153 if (*str) {
1154 new_str = g_strdup(str);
1155 if (new_str[0] == '\'' || new_str[0] == '\"') {
1156 len = strlen(str);
1157 if (new_str[len - 1] == new_str[0]) {
1158 new_str[len - 1] = '\0';
1159 memmove(new_str, new_str + 1, len - 1);
1160 }
1161 }
1162 string_list = g_slist_prepend(string_list, new_str);
1163 n++;
1164 }
1165
1166 str_array = g_new(gchar*, n);
1167
1168 i = n - 1;
1169
1170 str_array[i--] = NULL;
1171 for (slist = string_list; slist; slist = slist->next)
1172 str_array[i--] = slist->data;
1173
1174 g_slist_free(string_list);
1175
1176 return str_array;
1177 }
1178
get_abbrev_newsgroup_name(const gchar * group,gint len)1179 gchar *get_abbrev_newsgroup_name(const gchar *group, gint len)
1180 {
1181 gchar *abbrev_group;
1182 gchar *ap;
1183 const gchar *p = group;
1184 const gchar *last;
1185
1186 cm_return_val_if_fail(group != NULL, NULL);
1187
1188 last = group + strlen(group);
1189 abbrev_group = ap = g_malloc(strlen(group) + 1);
1190
1191 while (*p) {
1192 while (*p == '.')
1193 *ap++ = *p++;
1194 if ((ap - abbrev_group) + (last - p) > len && strchr(p, '.')) {
1195 *ap++ = *p++;
1196 while (*p != '.') p++;
1197 } else {
1198 strcpy(ap, p);
1199 return abbrev_group;
1200 }
1201 }
1202
1203 *ap = '\0';
1204 return abbrev_group;
1205 }
1206
trim_string(const gchar * str,gint len)1207 gchar *trim_string(const gchar *str, gint len)
1208 {
1209 const gchar *p = str;
1210 gint mb_len;
1211 gchar *new_str;
1212 gint new_len = 0;
1213
1214 if (!str) return NULL;
1215 if (strlen(str) <= len)
1216 return g_strdup(str);
1217 if (g_utf8_validate(str, -1, NULL) == FALSE)
1218 return g_strdup(str);
1219
1220 while (*p != '\0') {
1221 mb_len = g_utf8_skip[*(guchar *)p];
1222 if (mb_len == 0)
1223 break;
1224 else if (new_len + mb_len > len)
1225 break;
1226
1227 new_len += mb_len;
1228 p += mb_len;
1229 }
1230
1231 Xstrndup_a(new_str, str, new_len, return g_strdup(str));
1232 return g_strconcat(new_str, "...", NULL);
1233 }
1234
uri_list_extract_filenames(const gchar * uri_list)1235 GList *uri_list_extract_filenames(const gchar *uri_list)
1236 {
1237 GList *result = NULL;
1238 const gchar *p, *q;
1239 gchar *escaped_utf8uri;
1240
1241 p = uri_list;
1242
1243 while (p) {
1244 if (*p != '#') {
1245 while (g_ascii_isspace(*p)) p++;
1246 if (!strncmp(p, "file:", 5)) {
1247 q = p;
1248 q += 5;
1249 while (*q && *q != '\n' && *q != '\r') q++;
1250
1251 if (q > p) {
1252 gchar *file, *locale_file = NULL;
1253 q--;
1254 while (q > p && g_ascii_isspace(*q))
1255 q--;
1256 Xalloca(escaped_utf8uri, q - p + 2,
1257 return result);
1258 Xalloca(file, q - p + 2,
1259 return result);
1260 *file = '\0';
1261 strncpy(escaped_utf8uri, p, q - p + 1);
1262 escaped_utf8uri[q - p + 1] = '\0';
1263 decode_uri_with_plus(file, escaped_utf8uri, FALSE);
1264 /*
1265 * g_filename_from_uri() rejects escaped/locale encoded uri
1266 * string which come from Nautilus.
1267 */
1268 #ifndef G_OS_WIN32
1269 if (g_utf8_validate(file, -1, NULL))
1270 locale_file
1271 = conv_codeset_strdup(
1272 file + 5,
1273 CS_UTF_8,
1274 conv_get_locale_charset_str());
1275 if (!locale_file)
1276 locale_file = g_strdup(file + 5);
1277 #else
1278 locale_file = g_filename_from_uri(escaped_utf8uri, NULL, NULL);
1279 #endif
1280 result = g_list_append(result, locale_file);
1281 }
1282 }
1283 }
1284 p = strchr(p, '\n');
1285 if (p) p++;
1286 }
1287
1288 return result;
1289 }
1290
1291 /* Converts two-digit hexadecimal to decimal. Used for unescaping escaped
1292 * characters
1293 */
axtoi(const gchar * hexstr)1294 static gint axtoi(const gchar *hexstr)
1295 {
1296 gint hi, lo, result;
1297
1298 hi = hexstr[0];
1299 if ('0' <= hi && hi <= '9') {
1300 hi -= '0';
1301 } else
1302 if ('a' <= hi && hi <= 'f') {
1303 hi -= ('a' - 10);
1304 } else
1305 if ('A' <= hi && hi <= 'F') {
1306 hi -= ('A' - 10);
1307 }
1308
1309 lo = hexstr[1];
1310 if ('0' <= lo && lo <= '9') {
1311 lo -= '0';
1312 } else
1313 if ('a' <= lo && lo <= 'f') {
1314 lo -= ('a'-10);
1315 } else
1316 if ('A' <= lo && lo <= 'F') {
1317 lo -= ('A' - 10);
1318 }
1319 result = lo + (16 * hi);
1320 return result;
1321 }
1322
is_uri_string(const gchar * str)1323 gboolean is_uri_string(const gchar *str)
1324 {
1325 while (str && *str && g_ascii_isspace(*str))
1326 str++;
1327 return (g_ascii_strncasecmp(str, "http://", 7) == 0 ||
1328 g_ascii_strncasecmp(str, "https://", 8) == 0 ||
1329 g_ascii_strncasecmp(str, "ftp://", 6) == 0 ||
1330 g_ascii_strncasecmp(str, "www.", 4) == 0);
1331 }
1332
get_uri_path(const gchar * uri)1333 gchar *get_uri_path(const gchar *uri)
1334 {
1335 while (uri && *uri && g_ascii_isspace(*uri))
1336 uri++;
1337 if (g_ascii_strncasecmp(uri, "http://", 7) == 0)
1338 return (gchar *)(uri + 7);
1339 else if (g_ascii_strncasecmp(uri, "https://", 8) == 0)
1340 return (gchar *)(uri + 8);
1341 else if (g_ascii_strncasecmp(uri, "ftp://", 6) == 0)
1342 return (gchar *)(uri + 6);
1343 else
1344 return (gchar *)uri;
1345 }
1346
get_uri_len(const gchar * str)1347 gint get_uri_len(const gchar *str)
1348 {
1349 const gchar *p;
1350
1351 if (is_uri_string(str)) {
1352 for (p = str; *p != '\0'; p++) {
1353 if (!g_ascii_isgraph(*p) || strchr("<>\"", *p))
1354 break;
1355 }
1356 return p - str;
1357 }
1358
1359 return 0;
1360 }
1361
1362 /* Decodes URL-Encoded strings (i.e. strings in which spaces are replaced by
1363 * plusses, and escape characters are used)
1364 */
decode_uri_with_plus(gchar * decoded_uri,const gchar * encoded_uri,gboolean with_plus)1365 void decode_uri_with_plus(gchar *decoded_uri, const gchar *encoded_uri, gboolean with_plus)
1366 {
1367 gchar *dec = decoded_uri;
1368 const gchar *enc = encoded_uri;
1369
1370 while (*enc) {
1371 if (*enc == '%') {
1372 enc++;
1373 if (isxdigit((guchar)enc[0]) &&
1374 isxdigit((guchar)enc[1])) {
1375 *dec = axtoi(enc);
1376 dec++;
1377 enc += 2;
1378 }
1379 } else {
1380 if (with_plus && *enc == '+')
1381 *dec = ' ';
1382 else
1383 *dec = *enc;
1384 dec++;
1385 enc++;
1386 }
1387 }
1388
1389 *dec = '\0';
1390 }
1391
decode_uri(gchar * decoded_uri,const gchar * encoded_uri)1392 void decode_uri(gchar *decoded_uri, const gchar *encoded_uri)
1393 {
1394 decode_uri_with_plus(decoded_uri, encoded_uri, TRUE);
1395 }
1396
decode_uri_gdup(const gchar * encoded_uri)1397 static gchar *decode_uri_gdup(const gchar *encoded_uri)
1398 {
1399 gchar *buffer = g_malloc(strlen(encoded_uri)+1);
1400 decode_uri_with_plus(buffer, encoded_uri, FALSE);
1401 return buffer;
1402 }
1403
scan_mailto_url(const gchar * mailto,gchar ** from,gchar ** to,gchar ** cc,gchar ** bcc,gchar ** subject,gchar ** body,gchar *** attach,gchar ** inreplyto)1404 gint scan_mailto_url(const gchar *mailto, gchar **from, gchar **to, gchar **cc, gchar **bcc,
1405 gchar **subject, gchar **body, gchar ***attach, gchar **inreplyto)
1406 {
1407 gchar *tmp_mailto;
1408 gchar *p;
1409 const gchar *forbidden_uris[] = { ".gnupg/",
1410 "/etc/passwd",
1411 "/etc/shadow",
1412 ".ssh/",
1413 "../",
1414 NULL };
1415 gint num_attach = 0;
1416
1417 cm_return_val_if_fail(mailto != NULL, -1);
1418
1419 Xstrdup_a(tmp_mailto, mailto, return -1);
1420
1421 if (!strncmp(tmp_mailto, "mailto:", 7))
1422 tmp_mailto += 7;
1423
1424 p = strchr(tmp_mailto, '?');
1425 if (p) {
1426 *p = '\0';
1427 p++;
1428 }
1429
1430 if (to && !*to)
1431 *to = decode_uri_gdup(tmp_mailto);
1432
1433 while (p) {
1434 gchar *field, *value;
1435
1436 field = p;
1437
1438 p = strchr(p, '=');
1439 if (!p) break;
1440 *p = '\0';
1441 p++;
1442
1443 value = p;
1444
1445 p = strchr(p, '&');
1446 if (p) {
1447 *p = '\0';
1448 p++;
1449 }
1450
1451 if (*value == '\0') continue;
1452
1453 if (from && !g_ascii_strcasecmp(field, "from")) {
1454 if (!*from) {
1455 *from = decode_uri_gdup(value);
1456 } else {
1457 gchar *tmp = decode_uri_gdup(value);
1458 gchar *new_from = g_strdup_printf("%s, %s", *from, tmp);
1459 g_free(tmp);
1460 g_free(*from);
1461 *from = new_from;
1462 }
1463 } else if (cc && !g_ascii_strcasecmp(field, "cc")) {
1464 if (!*cc) {
1465 *cc = decode_uri_gdup(value);
1466 } else {
1467 gchar *tmp = decode_uri_gdup(value);
1468 gchar *new_cc = g_strdup_printf("%s, %s", *cc, tmp);
1469 g_free(tmp);
1470 g_free(*cc);
1471 *cc = new_cc;
1472 }
1473 } else if (bcc && !g_ascii_strcasecmp(field, "bcc")) {
1474 if (!*bcc) {
1475 *bcc = decode_uri_gdup(value);
1476 } else {
1477 gchar *tmp = decode_uri_gdup(value);
1478 gchar *new_bcc = g_strdup_printf("%s, %s", *bcc, tmp);
1479 g_free(tmp);
1480 g_free(*bcc);
1481 *bcc = new_bcc;
1482 }
1483 } else if (subject && !*subject &&
1484 !g_ascii_strcasecmp(field, "subject")) {
1485 *subject = decode_uri_gdup(value);
1486 } else if (body && !*body && !g_ascii_strcasecmp(field, "body")) {
1487 *body = decode_uri_gdup(value);
1488 } else if (body && !*body && !g_ascii_strcasecmp(field, "insert")) {
1489 int i = 0;
1490 gchar *tmp = decode_uri_gdup(value);
1491
1492 for (; forbidden_uris[i]; i++) {
1493 if (strstr(tmp, forbidden_uris[i])) {
1494 g_print("Refusing to insert '%s', potential private data leak\n",
1495 tmp);
1496 g_free(tmp);
1497 tmp = NULL;
1498 break;
1499 }
1500 }
1501
1502 if (tmp) {
1503 if (!is_file_entry_regular(tmp)) {
1504 g_warning("Refusing to insert '%s', not a regular file\n", tmp);
1505 } else if (!g_file_get_contents(tmp, body, NULL, NULL)) {
1506 g_warning("couldn't set insert file '%s' in body", value);
1507 }
1508
1509 g_free(tmp);
1510 }
1511 } else if (attach && !g_ascii_strcasecmp(field, "attach")) {
1512 int i = 0;
1513 gchar *tmp = decode_uri_gdup(value);
1514 gchar **my_att = g_malloc(sizeof(char *));
1515
1516 my_att[0] = NULL;
1517
1518 for (; forbidden_uris[i]; i++) {
1519 if (strstr(tmp, forbidden_uris[i])) {
1520 g_print("Refusing to attach '%s', potential private data leak\n",
1521 tmp);
1522 g_free(tmp);
1523 g_free(my_att);
1524 tmp = NULL;
1525 break;
1526 }
1527 }
1528 if (tmp) {
1529 /* attach is correct */
1530 num_attach++;
1531 my_att = g_realloc(my_att, (sizeof(char *))*(num_attach+1));
1532 my_att[num_attach-1] = tmp;
1533 my_att[num_attach] = NULL;
1534 *attach = my_att;
1535 }
1536 } else if (inreplyto && !*inreplyto &&
1537 !g_ascii_strcasecmp(field, "in-reply-to")) {
1538 *inreplyto = decode_uri_gdup(value);
1539 }
1540 }
1541
1542 return 0;
1543 }
1544
1545
1546 #ifdef G_OS_WIN32
1547 #include <windows.h>
1548 #ifndef CSIDL_APPDATA
1549 #define CSIDL_APPDATA 0x001a
1550 #endif
1551 #ifndef CSIDL_LOCAL_APPDATA
1552 #define CSIDL_LOCAL_APPDATA 0x001c
1553 #endif
1554 #ifndef CSIDL_FLAG_CREATE
1555 #define CSIDL_FLAG_CREATE 0x8000
1556 #endif
1557 #define DIM(v) (sizeof(v)/sizeof((v)[0]))
1558
1559 #define RTLD_LAZY 0
1560 const char *
w32_strerror(int w32_errno)1561 w32_strerror (int w32_errno)
1562 {
1563 static char strerr[256];
1564 int ec = (int)GetLastError ();
1565
1566 if (w32_errno == 0)
1567 w32_errno = ec;
1568 FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM, NULL, w32_errno,
1569 MAKELANGID (LANG_NEUTRAL, SUBLANG_DEFAULT),
1570 strerr, DIM (strerr)-1, NULL);
1571 return strerr;
1572 }
1573
1574 static __inline__ void *
dlopen(const char * name,int flag)1575 dlopen (const char * name, int flag)
1576 {
1577 void * hd = LoadLibrary (name);
1578 return hd;
1579 }
1580
1581 static __inline__ void *
dlsym(void * hd,const char * sym)1582 dlsym (void * hd, const char * sym)
1583 {
1584 if (hd && sym)
1585 {
1586 void * fnc = GetProcAddress (hd, sym);
1587 if (!fnc)
1588 return NULL;
1589 return fnc;
1590 }
1591 return NULL;
1592 }
1593
1594
1595 static __inline__ const char *
dlerror(void)1596 dlerror (void)
1597 {
1598 return w32_strerror (0);
1599 }
1600
1601
1602 static __inline__ int
dlclose(void * hd)1603 dlclose (void * hd)
1604 {
1605 if (hd)
1606 {
1607 FreeLibrary (hd);
1608 return 0;
1609 }
1610 return -1;
1611 }
1612
1613 static HRESULT
w32_shgetfolderpath(HWND a,int b,HANDLE c,DWORD d,LPSTR e)1614 w32_shgetfolderpath (HWND a, int b, HANDLE c, DWORD d, LPSTR e)
1615 {
1616 static int initialized;
1617 static HRESULT (WINAPI * func)(HWND,int,HANDLE,DWORD,LPSTR);
1618
1619 if (!initialized)
1620 {
1621 static char *dllnames[] = { "shell32.dll", "shfolder.dll", NULL };
1622 void *handle;
1623 int i;
1624
1625 initialized = 1;
1626
1627 for (i=0, handle = NULL; !handle && dllnames[i]; i++)
1628 {
1629 handle = dlopen (dllnames[i], RTLD_LAZY);
1630 if (handle)
1631 {
1632 func = dlsym (handle, "SHGetFolderPathW");
1633 if (!func)
1634 {
1635 dlclose (handle);
1636 handle = NULL;
1637 }
1638 }
1639 }
1640 }
1641
1642 if (func)
1643 return func (a,b,c,d,e);
1644 else
1645 return -1;
1646 }
1647
1648 /* Returns a static string with the directroy from which the module
1649 has been loaded. Returns an empty string on error. */
w32_get_module_dir(void)1650 static char *w32_get_module_dir(void)
1651 {
1652 static char *moddir;
1653
1654 if (!moddir) {
1655 char name[MAX_PATH+10];
1656 char *p;
1657
1658 if ( !GetModuleFileNameA (0, name, sizeof (name)-10) )
1659 *name = 0;
1660 else {
1661 p = strrchr (name, '\\');
1662 if (p)
1663 *p = 0;
1664 else
1665 *name = 0;
1666 }
1667 moddir = g_strdup (name);
1668 }
1669 return moddir;
1670 }
1671 #endif /* G_OS_WIN32 */
1672
1673 /* Return a static string with the locale dir. */
get_locale_dir(void)1674 const gchar *get_locale_dir(void)
1675 {
1676 static gchar *loc_dir;
1677
1678 #ifdef G_OS_WIN32
1679 if (!loc_dir)
1680 loc_dir = g_strconcat(w32_get_module_dir(), G_DIR_SEPARATOR_S,
1681 "\\share\\locale", NULL);
1682 #endif
1683 if (!loc_dir)
1684 loc_dir = LOCALEDIR;
1685
1686 return loc_dir;
1687 }
1688
1689
get_home_dir(void)1690 const gchar *get_home_dir(void)
1691 {
1692 #ifdef G_OS_WIN32
1693 static char home_dir_utf16[MAX_PATH] = "";
1694 static gchar *home_dir_utf8 = NULL;
1695 if (home_dir_utf16[0] == '\0') {
1696 if (w32_shgetfolderpath
1697 (NULL, CSIDL_APPDATA|CSIDL_FLAG_CREATE,
1698 NULL, 0, home_dir_utf16) < 0)
1699 strcpy (home_dir_utf16, "C:\\Claws Mail");
1700 home_dir_utf8 = g_utf16_to_utf8 ((const gunichar2 *)home_dir_utf16, -1, NULL, NULL, NULL);
1701 }
1702 return home_dir_utf8;
1703 #else
1704 static const gchar *homeenv = NULL;
1705
1706 if (homeenv)
1707 return homeenv;
1708
1709 if (!homeenv && g_getenv("HOME") != NULL)
1710 homeenv = g_strdup(g_getenv("HOME"));
1711 if (!homeenv)
1712 homeenv = g_get_home_dir();
1713
1714 return homeenv;
1715 #endif
1716 }
1717
1718 static gchar *claws_rc_dir = NULL;
1719 static gboolean rc_dir_alt = FALSE;
get_rc_dir(void)1720 const gchar *get_rc_dir(void)
1721 {
1722
1723 if (!claws_rc_dir) {
1724 claws_rc_dir = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
1725 RC_DIR, NULL);
1726 debug_print("using default rc_dir %s\n", claws_rc_dir);
1727 }
1728 return claws_rc_dir;
1729 }
1730
set_rc_dir(const gchar * dir)1731 void set_rc_dir(const gchar *dir)
1732 {
1733 gchar *canonical_dir;
1734 if (claws_rc_dir != NULL) {
1735 g_print("Error: rc_dir already set\n");
1736 } else {
1737 int err = cm_canonicalize_filename(dir, &canonical_dir);
1738 int len;
1739
1740 if (err) {
1741 g_print("Error looking for %s: %d(%s)\n",
1742 dir, -err, g_strerror(-err));
1743 exit(0);
1744 }
1745 rc_dir_alt = TRUE;
1746
1747 claws_rc_dir = canonical_dir;
1748
1749 len = strlen(claws_rc_dir);
1750 if (claws_rc_dir[len - 1] == G_DIR_SEPARATOR)
1751 claws_rc_dir[len - 1] = '\0';
1752
1753 debug_print("set rc_dir to %s\n", claws_rc_dir);
1754 if (!is_dir_exist(claws_rc_dir)) {
1755 if (make_dir_hier(claws_rc_dir) != 0) {
1756 g_print("Error: can't create %s\n",
1757 claws_rc_dir);
1758 exit(0);
1759 }
1760 }
1761 }
1762 }
1763
rc_dir_is_alt(void)1764 gboolean rc_dir_is_alt(void) {
1765 return rc_dir_alt;
1766 }
1767
get_mail_base_dir(void)1768 const gchar *get_mail_base_dir(void)
1769 {
1770 return get_home_dir();
1771 }
1772
get_news_cache_dir(void)1773 const gchar *get_news_cache_dir(void)
1774 {
1775 static gchar *news_cache_dir = NULL;
1776 if (!news_cache_dir)
1777 news_cache_dir = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
1778 NEWS_CACHE_DIR, NULL);
1779
1780 return news_cache_dir;
1781 }
1782
get_imap_cache_dir(void)1783 const gchar *get_imap_cache_dir(void)
1784 {
1785 static gchar *imap_cache_dir = NULL;
1786
1787 if (!imap_cache_dir)
1788 imap_cache_dir = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
1789 IMAP_CACHE_DIR, NULL);
1790
1791 return imap_cache_dir;
1792 }
1793
get_mime_tmp_dir(void)1794 const gchar *get_mime_tmp_dir(void)
1795 {
1796 static gchar *mime_tmp_dir = NULL;
1797
1798 if (!mime_tmp_dir)
1799 mime_tmp_dir = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
1800 MIME_TMP_DIR, NULL);
1801
1802 return mime_tmp_dir;
1803 }
1804
get_template_dir(void)1805 const gchar *get_template_dir(void)
1806 {
1807 static gchar *template_dir = NULL;
1808
1809 if (!template_dir)
1810 template_dir = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
1811 TEMPLATE_DIR, NULL);
1812
1813 return template_dir;
1814 }
1815
1816 #ifdef G_OS_WIN32
w32_get_cert_file(void)1817 const gchar *w32_get_cert_file(void)
1818 {
1819 const gchar *cert_file = NULL;
1820 if (!cert_file)
1821 cert_file = g_strconcat(w32_get_module_dir(),
1822 "\\share\\claws-mail\\",
1823 "ca-certificates.crt",
1824 NULL);
1825 return cert_file;
1826 }
1827 #endif
1828
1829 /* Return the filepath of the claws-mail.desktop file */
get_desktop_file(void)1830 const gchar *get_desktop_file(void)
1831 {
1832 #ifdef DESKTOPFILEPATH
1833 return DESKTOPFILEPATH;
1834 #else
1835 return NULL;
1836 #endif
1837 }
1838
1839 /* Return the default directory for Plugins. */
get_plugin_dir(void)1840 const gchar *get_plugin_dir(void)
1841 {
1842 #ifdef G_OS_WIN32
1843 static gchar *plugin_dir = NULL;
1844
1845 if (!plugin_dir)
1846 plugin_dir = g_strconcat(w32_get_module_dir(),
1847 "\\lib\\claws-mail\\plugins\\",
1848 NULL);
1849 return plugin_dir;
1850 #else
1851 if (is_dir_exist(PLUGINDIR))
1852 return PLUGINDIR;
1853 else {
1854 static gchar *plugin_dir = NULL;
1855 if (!plugin_dir)
1856 plugin_dir = g_strconcat(get_rc_dir(),
1857 G_DIR_SEPARATOR_S, "plugins",
1858 G_DIR_SEPARATOR_S, NULL);
1859 return plugin_dir;
1860 }
1861 #endif
1862 }
1863
1864
1865 #ifdef G_OS_WIN32
1866 /* Return the default directory for Themes. */
w32_get_themes_dir(void)1867 const gchar *w32_get_themes_dir(void)
1868 {
1869 static gchar *themes_dir = NULL;
1870
1871 if (!themes_dir)
1872 themes_dir = g_strconcat(w32_get_module_dir(),
1873 "\\share\\claws-mail\\themes",
1874 NULL);
1875 return themes_dir;
1876 }
1877 #endif
1878
get_tmp_dir(void)1879 const gchar *get_tmp_dir(void)
1880 {
1881 static gchar *tmp_dir = NULL;
1882
1883 if (!tmp_dir)
1884 tmp_dir = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
1885 TMP_DIR, NULL);
1886
1887 return tmp_dir;
1888 }
1889
get_tmp_file(void)1890 gchar *get_tmp_file(void)
1891 {
1892 gchar *tmp_file;
1893 static guint32 id = 0;
1894
1895 tmp_file = g_strdup_printf("%s%ctmpfile.%08x",
1896 get_tmp_dir(), G_DIR_SEPARATOR, id++);
1897
1898 return tmp_file;
1899 }
1900
get_domain_name(void)1901 const gchar *get_domain_name(void)
1902 {
1903 #ifdef G_OS_UNIX
1904 static gchar *domain_name = NULL;
1905 struct addrinfo hints, *res;
1906 char hostname[256];
1907 int s;
1908
1909 if (!domain_name) {
1910 if (gethostname(hostname, sizeof(hostname)) != 0) {
1911 perror("gethostname");
1912 domain_name = "localhost";
1913 } else {
1914 memset(&hints, 0, sizeof(struct addrinfo));
1915 hints.ai_family = AF_UNSPEC;
1916 hints.ai_socktype = 0;
1917 hints.ai_flags = AI_CANONNAME;
1918 hints.ai_protocol = 0;
1919
1920 s = getaddrinfo(hostname, NULL, &hints, &res);
1921 if (s != 0) {
1922 fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(s));
1923 domain_name = g_strdup(hostname);
1924 } else {
1925 domain_name = g_strdup(res->ai_canonname);
1926 freeaddrinfo(res);
1927 }
1928 }
1929 debug_print("domain name = %s\n", domain_name);
1930 }
1931
1932 return domain_name;
1933 #else
1934 return "localhost";
1935 #endif
1936 }
1937
1938 /* Tells whether the given host address string is a valid representation of a
1939 * numerical IP (v4 or, if supported, v6) address.
1940 */
is_numeric_host_address(const gchar * hostaddress)1941 gboolean is_numeric_host_address(const gchar *hostaddress)
1942 {
1943 struct addrinfo hints, *res;
1944 int err;
1945
1946 /* See what getaddrinfo makes of the string when told that it is a
1947 * numeric IP address representation. */
1948 memset(&hints, 0, sizeof(struct addrinfo));
1949 hints.ai_family = AF_UNSPEC;
1950 hints.ai_socktype = 0;
1951 hints.ai_flags = AI_NUMERICHOST;
1952 hints.ai_protocol = 0;
1953
1954 err = getaddrinfo(hostaddress, NULL, &hints, &res);
1955 if (err == 0)
1956 freeaddrinfo(res);
1957
1958 return (err == 0);
1959 }
1960
get_file_size(const gchar * file)1961 off_t get_file_size(const gchar *file)
1962 {
1963 #ifdef G_OS_WIN32
1964 GFile *f;
1965 GFileInfo *fi;
1966 GError *error = NULL;
1967 goffset size;
1968
1969 f = g_file_new_for_path(file);
1970 fi = g_file_query_info(f, "standard::size",
1971 G_FILE_QUERY_INFO_NONE, NULL, &error);
1972 if (error != NULL) {
1973 debug_print("get_file_size error: %s\n", error->message);
1974 g_error_free(error);
1975 g_object_unref(f);
1976 return -1;
1977 }
1978 size = g_file_info_get_size(fi);
1979 g_object_unref(fi);
1980 g_object_unref(f);
1981 return size;
1982
1983 #else
1984 GStatBuf s;
1985
1986 if (g_stat(file, &s) < 0) {
1987 FILE_OP_ERROR(file, "stat");
1988 return -1;
1989 }
1990
1991 return s.st_size;
1992 #endif
1993 }
1994
get_file_mtime(const gchar * file)1995 time_t get_file_mtime(const gchar *file)
1996 {
1997 GStatBuf s;
1998
1999 if (g_stat(file, &s) < 0) {
2000 FILE_OP_ERROR(file, "stat");
2001 return -1;
2002 }
2003
2004 return s.st_mtime;
2005 }
2006
file_exist(const gchar * file,gboolean allow_fifo)2007 gboolean file_exist(const gchar *file, gboolean allow_fifo)
2008 {
2009 GStatBuf s;
2010
2011 if (file == NULL)
2012 return FALSE;
2013
2014 if (g_stat(file, &s) < 0) {
2015 if (ENOENT != errno) FILE_OP_ERROR(file, "stat");
2016 return FALSE;
2017 }
2018
2019 if (S_ISREG(s.st_mode) || (allow_fifo && S_ISFIFO(s.st_mode)))
2020 return TRUE;
2021
2022 return FALSE;
2023 }
2024
2025
2026 /* Test on whether FILE is a relative file name. This is
2027 * straightforward for Unix but more complex for Windows. */
is_relative_filename(const gchar * file)2028 gboolean is_relative_filename(const gchar *file)
2029 {
2030 if (!file)
2031 return TRUE;
2032 #ifdef G_OS_WIN32
2033 if ( *file == '\\' && file[1] == '\\' && strchr (file+2, '\\') )
2034 return FALSE; /* Prefixed with a hostname - this can't
2035 * be a relative name. */
2036
2037 if ( ((*file >= 'a' && *file <= 'z')
2038 || (*file >= 'A' && *file <= 'Z'))
2039 && file[1] == ':')
2040 file += 2; /* Skip drive letter. */
2041
2042 return !(*file == '\\' || *file == '/');
2043 #else
2044 return !(*file == G_DIR_SEPARATOR);
2045 #endif
2046 }
2047
2048
is_dir_exist(const gchar * dir)2049 gboolean is_dir_exist(const gchar *dir)
2050 {
2051 if (dir == NULL)
2052 return FALSE;
2053
2054 return g_file_test(dir, G_FILE_TEST_IS_DIR);
2055 }
2056
is_file_entry_exist(const gchar * file)2057 gboolean is_file_entry_exist(const gchar *file)
2058 {
2059 if (file == NULL)
2060 return FALSE;
2061
2062 return g_file_test(file, G_FILE_TEST_EXISTS);
2063 }
2064
is_file_entry_regular(const gchar * file)2065 gboolean is_file_entry_regular(const gchar *file)
2066 {
2067 if (file == NULL)
2068 return FALSE;
2069
2070 return g_file_test(file, G_FILE_TEST_IS_REGULAR);
2071 }
2072
dirent_is_regular_file(struct dirent * d)2073 gboolean dirent_is_regular_file(struct dirent *d)
2074 {
2075 #if !defined(G_OS_WIN32) && defined(HAVE_DIRENT_D_TYPE)
2076 if (d->d_type == DT_REG)
2077 return TRUE;
2078 else if (d->d_type != DT_UNKNOWN)
2079 return FALSE;
2080 #endif
2081
2082 return g_file_test(d->d_name, G_FILE_TEST_IS_REGULAR);
2083 }
2084
change_dir(const gchar * dir)2085 gint change_dir(const gchar *dir)
2086 {
2087 gchar *prevdir = NULL;
2088
2089 if (debug_mode)
2090 prevdir = g_get_current_dir();
2091
2092 if (g_chdir(dir) < 0) {
2093 FILE_OP_ERROR(dir, "chdir");
2094 if (debug_mode) g_free(prevdir);
2095 return -1;
2096 } else if (debug_mode) {
2097 gchar *cwd;
2098
2099 cwd = g_get_current_dir();
2100 if (strcmp(prevdir, cwd) != 0)
2101 g_print("current dir: %s\n", cwd);
2102 g_free(cwd);
2103 g_free(prevdir);
2104 }
2105
2106 return 0;
2107 }
2108
make_dir(const gchar * dir)2109 gint make_dir(const gchar *dir)
2110 {
2111 if (g_mkdir(dir, S_IRWXU) < 0) {
2112 FILE_OP_ERROR(dir, "mkdir");
2113 return -1;
2114 }
2115 if (g_chmod(dir, S_IRWXU) < 0)
2116 FILE_OP_ERROR(dir, "chmod");
2117
2118 return 0;
2119 }
2120
make_dir_hier(const gchar * dir)2121 gint make_dir_hier(const gchar *dir)
2122 {
2123 gchar *parent_dir;
2124 const gchar *p;
2125
2126 for (p = dir; (p = strchr(p, G_DIR_SEPARATOR)) != NULL; p++) {
2127 parent_dir = g_strndup(dir, p - dir);
2128 if (*parent_dir != '\0') {
2129 if (!is_dir_exist(parent_dir)) {
2130 if (make_dir(parent_dir) < 0) {
2131 g_free(parent_dir);
2132 return -1;
2133 }
2134 }
2135 }
2136 g_free(parent_dir);
2137 }
2138
2139 if (!is_dir_exist(dir)) {
2140 if (make_dir(dir) < 0)
2141 return -1;
2142 }
2143
2144 return 0;
2145 }
2146
remove_all_files(const gchar * dir)2147 gint remove_all_files(const gchar *dir)
2148 {
2149 GDir *dp;
2150 const gchar *file_name;
2151 gchar *tmp;
2152
2153 if ((dp = g_dir_open(dir, 0, NULL)) == NULL) {
2154 g_warning("failed to open directory: %s", dir);
2155 return -1;
2156 }
2157
2158 while ((file_name = g_dir_read_name(dp)) != NULL) {
2159 tmp = g_strconcat(dir, G_DIR_SEPARATOR_S, file_name, NULL);
2160 if (claws_unlink(tmp) < 0)
2161 FILE_OP_ERROR(tmp, "unlink");
2162 g_free(tmp);
2163 }
2164
2165 g_dir_close(dp);
2166
2167 return 0;
2168 }
2169
remove_numbered_files(const gchar * dir,guint first,guint last)2170 gint remove_numbered_files(const gchar *dir, guint first, guint last)
2171 {
2172 GDir *dp;
2173 const gchar *dir_name;
2174 gchar *prev_dir;
2175 gint file_no;
2176
2177 if (first == last) {
2178 /* Skip all the dir reading part. */
2179 gchar *filename = g_strdup_printf("%s%s%u", dir, G_DIR_SEPARATOR_S, first);
2180 if (is_dir_exist(filename)) {
2181 /* a numbered directory with this name exists,
2182 * remove the dot-file instead */
2183 g_free(filename);
2184 filename = g_strdup_printf("%s%s.%u", dir, G_DIR_SEPARATOR_S, first);
2185 }
2186 if (claws_unlink(filename) < 0) {
2187 FILE_OP_ERROR(filename, "unlink");
2188 g_free(filename);
2189 return -1;
2190 }
2191 g_free(filename);
2192 return 0;
2193 }
2194
2195 prev_dir = g_get_current_dir();
2196
2197 if (g_chdir(dir) < 0) {
2198 FILE_OP_ERROR(dir, "chdir");
2199 g_free(prev_dir);
2200 return -1;
2201 }
2202
2203 if ((dp = g_dir_open(".", 0, NULL)) == NULL) {
2204 g_warning("failed to open directory: %s", dir);
2205 g_free(prev_dir);
2206 return -1;
2207 }
2208
2209 while ((dir_name = g_dir_read_name(dp)) != NULL) {
2210 file_no = to_number(dir_name);
2211 if (file_no > 0 && first <= file_no && file_no <= last) {
2212 if (is_dir_exist(dir_name)) {
2213 gchar *dot_file = g_strdup_printf(".%s", dir_name);
2214 if (is_file_exist(dot_file) && claws_unlink(dot_file) < 0) {
2215 FILE_OP_ERROR(dot_file, "unlink");
2216 }
2217 g_free(dot_file);
2218 continue;
2219 }
2220 if (claws_unlink(dir_name) < 0)
2221 FILE_OP_ERROR(dir_name, "unlink");
2222 }
2223 }
2224
2225 g_dir_close(dp);
2226
2227 if (g_chdir(prev_dir) < 0) {
2228 FILE_OP_ERROR(prev_dir, "chdir");
2229 g_free(prev_dir);
2230 return -1;
2231 }
2232
2233 g_free(prev_dir);
2234
2235 return 0;
2236 }
2237
remove_numbered_files_not_in_list(const gchar * dir,GSList * numberlist)2238 gint remove_numbered_files_not_in_list(const gchar *dir, GSList *numberlist)
2239 {
2240 GDir *dp;
2241 const gchar *dir_name;
2242 gchar *prev_dir;
2243 gint file_no;
2244 GHashTable *wanted_files;
2245 GSList *cur;
2246 GError *error = NULL;
2247
2248 if (numberlist == NULL)
2249 return 0;
2250
2251 prev_dir = g_get_current_dir();
2252
2253 if (g_chdir(dir) < 0) {
2254 FILE_OP_ERROR(dir, "chdir");
2255 g_free(prev_dir);
2256 return -1;
2257 }
2258
2259 if ((dp = g_dir_open(".", 0, &error)) == NULL) {
2260 g_message("Couldn't open current directory: %s (%d).\n",
2261 error->message, error->code);
2262 g_error_free(error);
2263 g_free(prev_dir);
2264 return -1;
2265 }
2266
2267 wanted_files = g_hash_table_new(g_direct_hash, g_direct_equal);
2268 for (cur = numberlist; cur != NULL; cur = cur->next) {
2269 /* numberlist->data is expected to be GINT_TO_POINTER */
2270 g_hash_table_insert(wanted_files, cur->data, GINT_TO_POINTER(1));
2271 }
2272
2273 while ((dir_name = g_dir_read_name(dp)) != NULL) {
2274 file_no = to_number(dir_name);
2275 if (is_dir_exist(dir_name))
2276 continue;
2277 if (file_no > 0 && g_hash_table_lookup(wanted_files, GINT_TO_POINTER(file_no)) == NULL) {
2278 debug_print("removing unwanted file %d from %s\n", file_no, dir);
2279 if (is_dir_exist(dir_name)) {
2280 gchar *dot_file = g_strdup_printf(".%s", dir_name);
2281 if (is_file_exist(dot_file) && claws_unlink(dot_file) < 0) {
2282 FILE_OP_ERROR(dot_file, "unlink");
2283 }
2284 g_free(dot_file);
2285 continue;
2286 }
2287 if (claws_unlink(dir_name) < 0)
2288 FILE_OP_ERROR(dir_name, "unlink");
2289 }
2290 }
2291
2292 g_dir_close(dp);
2293 g_hash_table_destroy(wanted_files);
2294
2295 if (g_chdir(prev_dir) < 0) {
2296 FILE_OP_ERROR(prev_dir, "chdir");
2297 g_free(prev_dir);
2298 return -1;
2299 }
2300
2301 g_free(prev_dir);
2302
2303 return 0;
2304 }
2305
remove_all_numbered_files(const gchar * dir)2306 gint remove_all_numbered_files(const gchar *dir)
2307 {
2308 return remove_numbered_files(dir, 0, UINT_MAX);
2309 }
2310
remove_dir_recursive(const gchar * dir)2311 gint remove_dir_recursive(const gchar *dir)
2312 {
2313 GStatBuf s;
2314 GDir *dp;
2315 const gchar *dir_name;
2316 gchar *prev_dir;
2317
2318 if (g_stat(dir, &s) < 0) {
2319 FILE_OP_ERROR(dir, "stat");
2320 if (ENOENT == errno) return 0;
2321 return -(errno);
2322 }
2323
2324 if (!S_ISDIR(s.st_mode)) {
2325 if (claws_unlink(dir) < 0) {
2326 FILE_OP_ERROR(dir, "unlink");
2327 return -(errno);
2328 }
2329
2330 return 0;
2331 }
2332
2333 prev_dir = g_get_current_dir();
2334 /* g_print("prev_dir = %s\n", prev_dir); */
2335
2336 if (!path_cmp(prev_dir, dir)) {
2337 g_free(prev_dir);
2338 if (g_chdir("..") < 0) {
2339 FILE_OP_ERROR(dir, "chdir");
2340 return -(errno);
2341 }
2342 prev_dir = g_get_current_dir();
2343 }
2344
2345 if (g_chdir(dir) < 0) {
2346 FILE_OP_ERROR(dir, "chdir");
2347 g_free(prev_dir);
2348 return -(errno);
2349 }
2350
2351 if ((dp = g_dir_open(".", 0, NULL)) == NULL) {
2352 g_warning("failed to open directory: %s", dir);
2353 g_chdir(prev_dir);
2354 g_free(prev_dir);
2355 return -(errno);
2356 }
2357
2358 /* remove all files in the directory */
2359 while ((dir_name = g_dir_read_name(dp)) != NULL) {
2360 /* g_print("removing %s\n", dir_name); */
2361
2362 if (is_dir_exist(dir_name)) {
2363 gint ret;
2364
2365 if ((ret = remove_dir_recursive(dir_name)) < 0) {
2366 g_warning("can't remove directory: %s", dir_name);
2367 return ret;
2368 }
2369 } else {
2370 if (claws_unlink(dir_name) < 0)
2371 FILE_OP_ERROR(dir_name, "unlink");
2372 }
2373 }
2374
2375 g_dir_close(dp);
2376
2377 if (g_chdir(prev_dir) < 0) {
2378 FILE_OP_ERROR(prev_dir, "chdir");
2379 g_free(prev_dir);
2380 return -(errno);
2381 }
2382
2383 g_free(prev_dir);
2384
2385 if (g_rmdir(dir) < 0) {
2386 FILE_OP_ERROR(dir, "rmdir");
2387 return -(errno);
2388 }
2389
2390 return 0;
2391 }
2392
2393 /* convert line endings into CRLF. If the last line doesn't end with
2394 * linebreak, add it.
2395 */
canonicalize_str(const gchar * str)2396 gchar *canonicalize_str(const gchar *str)
2397 {
2398 const gchar *p;
2399 guint new_len = 0;
2400 gchar *out, *outp;
2401
2402 for (p = str; *p != '\0'; ++p) {
2403 if (*p != '\r') {
2404 ++new_len;
2405 if (*p == '\n')
2406 ++new_len;
2407 }
2408 }
2409 if (p == str || *(p - 1) != '\n')
2410 new_len += 2;
2411
2412 out = outp = g_malloc(new_len + 1);
2413 for (p = str; *p != '\0'; ++p) {
2414 if (*p != '\r') {
2415 if (*p == '\n')
2416 *outp++ = '\r';
2417 *outp++ = *p;
2418 }
2419 }
2420 if (p == str || *(p - 1) != '\n') {
2421 *outp++ = '\r';
2422 *outp++ = '\n';
2423 }
2424 *outp = '\0';
2425
2426 return out;
2427 }
2428
normalize_newlines(const gchar * str)2429 gchar *normalize_newlines(const gchar *str)
2430 {
2431 const gchar *p;
2432 gchar *out, *outp;
2433
2434 out = outp = g_malloc(strlen(str) + 1);
2435 for (p = str; *p != '\0'; ++p) {
2436 if (*p == '\r') {
2437 if (*(p + 1) != '\n')
2438 *outp++ = '\n';
2439 } else
2440 *outp++ = *p;
2441 }
2442
2443 *outp = '\0';
2444
2445 return out;
2446 }
2447
get_outgoing_rfc2822_str(FILE * fp)2448 gchar *get_outgoing_rfc2822_str(FILE *fp)
2449 {
2450 gchar buf[BUFFSIZE];
2451 GString *str;
2452 gchar *ret;
2453
2454 str = g_string_new(NULL);
2455
2456 /* output header part */
2457 while (claws_fgets(buf, sizeof(buf), fp) != NULL) {
2458 strretchomp(buf);
2459 if (!g_ascii_strncasecmp(buf, "Bcc:", 4)) {
2460 gint next;
2461
2462 for (;;) {
2463 next = fgetc(fp);
2464 if (next == EOF)
2465 break;
2466 else if (next != ' ' && next != '\t') {
2467 ungetc(next, fp);
2468 break;
2469 }
2470 if (claws_fgets(buf, sizeof(buf), fp) == NULL)
2471 break;
2472 }
2473 } else {
2474 g_string_append(str, buf);
2475 g_string_append(str, "\r\n");
2476 if (buf[0] == '\0')
2477 break;
2478 }
2479 }
2480
2481 /* output body part */
2482 while (claws_fgets(buf, sizeof(buf), fp) != NULL) {
2483 strretchomp(buf);
2484 if (buf[0] == '.')
2485 g_string_append_c(str, '.');
2486 g_string_append(str, buf);
2487 g_string_append(str, "\r\n");
2488 }
2489
2490 ret = str->str;
2491 g_string_free(str, FALSE);
2492
2493 return ret;
2494 }
2495
2496 /*
2497 * Create a new boundary in a way that it is very unlikely that this
2498 * will occur in the following text. It would be easy to ensure
2499 * uniqueness if everything is either quoted-printable or base64
2500 * encoded (note that conversion is allowed), but because MIME bodies
2501 * may be nested, it may happen that the same boundary has already
2502 * been used.
2503 *
2504 * boundary := 0*69<bchars> bcharsnospace
2505 * bchars := bcharsnospace / " "
2506 * bcharsnospace := DIGIT / ALPHA / "'" / "(" / ")" /
2507 * "+" / "_" / "," / "-" / "." /
2508 * "/" / ":" / "=" / "?"
2509 *
2510 * some special characters removed because of buggy MTAs
2511 */
2512
generate_mime_boundary(const gchar * prefix)2513 gchar *generate_mime_boundary(const gchar *prefix)
2514 {
2515 static gchar tbl[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
2516 "abcdefghijklmnopqrstuvwxyz"
2517 "1234567890+_./=";
2518 gchar buf_uniq[24];
2519 gint i;
2520
2521 for (i = 0; i < sizeof(buf_uniq) - 1; i++)
2522 buf_uniq[i] = tbl[g_random_int_range(0, sizeof(tbl) - 1)];
2523 buf_uniq[i] = '\0';
2524
2525 return g_strdup_printf("%s_/%s", prefix ? prefix : "MP",
2526 buf_uniq);
2527 }
2528
fgets_crlf(char * buf,int size,FILE * stream)2529 char *fgets_crlf(char *buf, int size, FILE *stream)
2530 {
2531 gboolean is_cr = FALSE;
2532 gboolean last_was_cr = FALSE;
2533 int c = 0;
2534 char *cs;
2535
2536 cs = buf;
2537 while (--size > 0 && (c = getc(stream)) != EOF)
2538 {
2539 *cs++ = c;
2540 is_cr = (c == '\r');
2541 if (c == '\n') {
2542 break;
2543 }
2544 if (last_was_cr) {
2545 *(--cs) = '\n';
2546 cs++;
2547 ungetc(c, stream);
2548 break;
2549 }
2550 last_was_cr = is_cr;
2551 }
2552 if (c == EOF && cs == buf)
2553 return NULL;
2554
2555 *cs = '\0';
2556
2557 return buf;
2558 }
2559
execute_async(gchar * const argv[],const gchar * working_directory)2560 static gint execute_async(gchar *const argv[], const gchar *working_directory)
2561 {
2562 cm_return_val_if_fail(argv != NULL && argv[0] != NULL, -1);
2563
2564 if (g_spawn_async(working_directory, (gchar **)argv, NULL, G_SPAWN_SEARCH_PATH,
2565 NULL, NULL, NULL, FALSE) == FALSE) {
2566 g_warning("couldn't execute command: %s", argv[0]);
2567 return -1;
2568 }
2569
2570 return 0;
2571 }
2572
execute_sync(gchar * const argv[],const gchar * working_directory)2573 static gint execute_sync(gchar *const argv[], const gchar *working_directory)
2574 {
2575 gint status;
2576
2577 cm_return_val_if_fail(argv != NULL && argv[0] != NULL, -1);
2578
2579 #ifdef G_OS_UNIX
2580 if (g_spawn_sync(working_directory, (gchar **)argv, NULL, G_SPAWN_SEARCH_PATH,
2581 NULL, NULL, NULL, NULL, &status, NULL) == FALSE) {
2582 g_warning("couldn't execute command: %s", argv[0]);
2583 return -1;
2584 }
2585
2586 if (WIFEXITED(status))
2587 return WEXITSTATUS(status);
2588 else
2589 return -1;
2590 #else
2591 if (g_spawn_sync(working_directory, (gchar **)argv, NULL,
2592 G_SPAWN_SEARCH_PATH|
2593 G_SPAWN_CHILD_INHERITS_STDIN|
2594 G_SPAWN_LEAVE_DESCRIPTORS_OPEN,
2595 NULL, NULL, NULL, NULL, &status, NULL) == FALSE) {
2596 g_warning("couldn't execute command: %s", argv[0]);
2597 return -1;
2598 }
2599
2600 return status;
2601 #endif
2602 }
2603
execute_command_line(const gchar * cmdline,gboolean async,const gchar * working_directory)2604 gint execute_command_line(const gchar *cmdline, gboolean async,
2605 const gchar *working_directory)
2606 {
2607 gchar **argv;
2608 gint ret;
2609
2610 cm_return_val_if_fail(cmdline != NULL, -1);
2611
2612 debug_print("execute_command_line(): executing: %s\n", cmdline?cmdline:"(null)");
2613
2614 argv = strsplit_with_quote(cmdline, " ", 0);
2615
2616 if (async)
2617 ret = execute_async(argv, working_directory);
2618 else
2619 ret = execute_sync(argv, working_directory);
2620
2621 g_strfreev(argv);
2622
2623 return ret;
2624 }
2625
get_command_output(const gchar * cmdline)2626 gchar *get_command_output(const gchar *cmdline)
2627 {
2628 gchar *child_stdout;
2629 gint status;
2630
2631 cm_return_val_if_fail(cmdline != NULL, NULL);
2632
2633 debug_print("get_command_output(): executing: %s\n", cmdline);
2634
2635 if (g_spawn_command_line_sync(cmdline, &child_stdout, NULL, &status,
2636 NULL) == FALSE) {
2637 g_warning("couldn't execute command: %s", cmdline);
2638 return NULL;
2639 }
2640
2641 return child_stdout;
2642 }
2643
get_command_output_stream(const char * cmdline)2644 FILE *get_command_output_stream(const char* cmdline)
2645 {
2646 GPid pid;
2647 GError *err = NULL;
2648 gchar **argv = NULL;
2649 int fd;
2650
2651 cm_return_val_if_fail(cmdline != NULL, NULL);
2652
2653 debug_print("get_command_output_stream(): executing: %s\n", cmdline);
2654
2655 /* turn the command-line string into an array */
2656 if (!g_shell_parse_argv(cmdline, NULL, &argv, &err)) {
2657 g_warning("could not parse command line from '%s': %s\n", cmdline, err->message);
2658 g_error_free(err);
2659 return NULL;
2660 }
2661
2662 if (!g_spawn_async_with_pipes(NULL, argv, NULL, G_SPAWN_SEARCH_PATH,
2663 NULL, NULL, &pid, NULL, &fd, NULL, &err)
2664 && err)
2665 {
2666 g_warning("could not spawn '%s': %s\n", cmdline, err->message);
2667 g_error_free(err);
2668 g_strfreev(argv);
2669 return NULL;
2670 }
2671
2672 g_strfreev(argv);
2673 return fdopen(fd, "r");
2674 }
2675
is_unchanged_uri_char(char c)2676 static gint is_unchanged_uri_char(char c)
2677 {
2678 switch (c) {
2679 case '(':
2680 case ')':
2681 return 0;
2682 default:
2683 return 1;
2684 }
2685 }
2686
encode_uri(gchar * encoded_uri,gint bufsize,const gchar * uri)2687 static void encode_uri(gchar *encoded_uri, gint bufsize, const gchar *uri)
2688 {
2689 int i;
2690 int k;
2691
2692 k = 0;
2693 for(i = 0; i < strlen(uri) ; i++) {
2694 if (is_unchanged_uri_char(uri[i])) {
2695 if (k + 2 >= bufsize)
2696 break;
2697 encoded_uri[k++] = uri[i];
2698 }
2699 else {
2700 char * hexa = "0123456789ABCDEF";
2701
2702 if (k + 4 >= bufsize)
2703 break;
2704 encoded_uri[k++] = '%';
2705 encoded_uri[k++] = hexa[uri[i] / 16];
2706 encoded_uri[k++] = hexa[uri[i] % 16];
2707 }
2708 }
2709 encoded_uri[k] = 0;
2710 }
2711
open_uri(const gchar * uri,const gchar * cmdline)2712 gint open_uri(const gchar *uri, const gchar *cmdline)
2713 {
2714
2715 #ifndef G_OS_WIN32
2716 gchar buf[BUFFSIZE];
2717 gchar *p;
2718 gchar encoded_uri[BUFFSIZE];
2719 cm_return_val_if_fail(uri != NULL, -1);
2720
2721 /* an option to choose whether to use encode_uri or not ? */
2722 encode_uri(encoded_uri, BUFFSIZE, uri);
2723
2724 if (cmdline &&
2725 (p = strchr(cmdline, '%')) && *(p + 1) == 's' &&
2726 !strchr(p + 2, '%'))
2727 g_snprintf(buf, sizeof(buf), cmdline, encoded_uri);
2728 else {
2729 if (cmdline)
2730 g_warning("Open URI command-line is invalid "
2731 "(there must be only one '%%s'): %s",
2732 cmdline);
2733 g_snprintf(buf, sizeof(buf), DEFAULT_BROWSER_CMD, encoded_uri);
2734 }
2735
2736 execute_command_line(buf, TRUE, NULL);
2737 #else
2738 ShellExecute(NULL, "open", uri, NULL, NULL, SW_SHOW);
2739 #endif
2740 return 0;
2741 }
2742
open_txt_editor(const gchar * filepath,const gchar * cmdline)2743 gint open_txt_editor(const gchar *filepath, const gchar *cmdline)
2744 {
2745 gchar buf[BUFFSIZE];
2746 gchar *p;
2747
2748 cm_return_val_if_fail(filepath != NULL, -1);
2749
2750 if (cmdline &&
2751 (p = strchr(cmdline, '%')) && *(p + 1) == 's' &&
2752 !strchr(p + 2, '%'))
2753 g_snprintf(buf, sizeof(buf), cmdline, filepath);
2754 else {
2755 if (cmdline)
2756 g_warning("Open Text Editor command-line is invalid "
2757 "(there must be only one '%%s'): %s",
2758 cmdline);
2759 g_snprintf(buf, sizeof(buf), DEFAULT_EDITOR_CMD, filepath);
2760 }
2761
2762 execute_command_line(buf, TRUE, NULL);
2763
2764 return 0;
2765 }
2766
remote_tzoffset_sec(const gchar * zone)2767 time_t remote_tzoffset_sec(const gchar *zone)
2768 {
2769 static gchar ustzstr[] = "PSTPDTMSTMDTCSTCDTESTEDT";
2770 gchar zone3[4];
2771 gchar *p;
2772 gchar c;
2773 gint iustz;
2774 gint offset;
2775 time_t remoteoffset;
2776
2777 strncpy(zone3, zone, 3);
2778 zone3[3] = '\0';
2779 remoteoffset = 0;
2780
2781 if (sscanf(zone, "%c%d", &c, &offset) == 2 &&
2782 (c == '+' || c == '-')) {
2783 remoteoffset = ((offset / 100) * 60 + (offset % 100)) * 60;
2784 if (c == '-')
2785 remoteoffset = -remoteoffset;
2786 } else if (!strncmp(zone, "UT" , 2) ||
2787 !strncmp(zone, "GMT", 3)) {
2788 remoteoffset = 0;
2789 } else if (strlen(zone3) == 3) {
2790 for (p = ustzstr; *p != '\0'; p += 3) {
2791 if (!g_ascii_strncasecmp(p, zone3, 3)) {
2792 iustz = ((gint)(p - ustzstr) / 3 + 1) / 2 - 8;
2793 remoteoffset = iustz * 3600;
2794 break;
2795 }
2796 }
2797 if (*p == '\0')
2798 return -1;
2799 } else if (strlen(zone3) == 1) {
2800 switch (zone[0]) {
2801 case 'Z': remoteoffset = 0; break;
2802 case 'A': remoteoffset = -1; break;
2803 case 'B': remoteoffset = -2; break;
2804 case 'C': remoteoffset = -3; break;
2805 case 'D': remoteoffset = -4; break;
2806 case 'E': remoteoffset = -5; break;
2807 case 'F': remoteoffset = -6; break;
2808 case 'G': remoteoffset = -7; break;
2809 case 'H': remoteoffset = -8; break;
2810 case 'I': remoteoffset = -9; break;
2811 case 'K': remoteoffset = -10; break; /* J is not used */
2812 case 'L': remoteoffset = -11; break;
2813 case 'M': remoteoffset = -12; break;
2814 case 'N': remoteoffset = 1; break;
2815 case 'O': remoteoffset = 2; break;
2816 case 'P': remoteoffset = 3; break;
2817 case 'Q': remoteoffset = 4; break;
2818 case 'R': remoteoffset = 5; break;
2819 case 'S': remoteoffset = 6; break;
2820 case 'T': remoteoffset = 7; break;
2821 case 'U': remoteoffset = 8; break;
2822 case 'V': remoteoffset = 9; break;
2823 case 'W': remoteoffset = 10; break;
2824 case 'X': remoteoffset = 11; break;
2825 case 'Y': remoteoffset = 12; break;
2826 default: remoteoffset = 0; break;
2827 }
2828 remoteoffset = remoteoffset * 3600;
2829 } else
2830 return -1;
2831
2832 return remoteoffset;
2833 }
2834
tzoffset_sec(time_t * now)2835 time_t tzoffset_sec(time_t *now)
2836 {
2837 struct tm gmt, *lt;
2838 gint off;
2839 struct tm buf1, buf2;
2840 #ifdef G_OS_WIN32
2841 if (now && *now < 0)
2842 return 0;
2843 #endif
2844 gmt = *gmtime_r(now, &buf1);
2845 lt = localtime_r(now, &buf2);
2846
2847 off = (lt->tm_hour - gmt.tm_hour) * 60 + lt->tm_min - gmt.tm_min;
2848
2849 if (lt->tm_year < gmt.tm_year)
2850 off -= 24 * 60;
2851 else if (lt->tm_year > gmt.tm_year)
2852 off += 24 * 60;
2853 else if (lt->tm_yday < gmt.tm_yday)
2854 off -= 24 * 60;
2855 else if (lt->tm_yday > gmt.tm_yday)
2856 off += 24 * 60;
2857
2858 if (off >= 24 * 60) /* should be impossible */
2859 off = 23 * 60 + 59; /* if not, insert silly value */
2860 if (off <= -24 * 60)
2861 off = -(23 * 60 + 59);
2862
2863 return off * 60;
2864 }
2865
2866 /* calculate timezone offset */
tzoffset(time_t * now)2867 gchar *tzoffset(time_t *now)
2868 {
2869 static gchar offset_string[6];
2870 struct tm gmt, *lt;
2871 gint off;
2872 gchar sign = '+';
2873 struct tm buf1, buf2;
2874 #ifdef G_OS_WIN32
2875 if (now && *now < 0)
2876 return 0;
2877 #endif
2878 gmt = *gmtime_r(now, &buf1);
2879 lt = localtime_r(now, &buf2);
2880
2881 off = (lt->tm_hour - gmt.tm_hour) * 60 + lt->tm_min - gmt.tm_min;
2882
2883 if (lt->tm_year < gmt.tm_year)
2884 off -= 24 * 60;
2885 else if (lt->tm_year > gmt.tm_year)
2886 off += 24 * 60;
2887 else if (lt->tm_yday < gmt.tm_yday)
2888 off -= 24 * 60;
2889 else if (lt->tm_yday > gmt.tm_yday)
2890 off += 24 * 60;
2891
2892 if (off < 0) {
2893 sign = '-';
2894 off = -off;
2895 }
2896
2897 if (off >= 24 * 60) /* should be impossible */
2898 off = 23 * 60 + 59; /* if not, insert silly value */
2899
2900 sprintf(offset_string, "%c%02d%02d", sign, off / 60, off % 60);
2901
2902 return offset_string;
2903 }
2904
_get_rfc822_date(gchar * buf,gint len,gboolean hidetz)2905 static void _get_rfc822_date(gchar *buf, gint len, gboolean hidetz)
2906 {
2907 struct tm *lt;
2908 time_t t;
2909 gchar day[4], mon[4];
2910 gint dd, hh, mm, ss, yyyy;
2911 struct tm buf1;
2912 gchar buf2[RFC822_DATE_BUFFSIZE];
2913
2914 t = time(NULL);
2915 if (hidetz)
2916 lt = gmtime_r(&t, &buf1);
2917 else
2918 lt = localtime_r(&t, &buf1);
2919
2920 if (sscanf(asctime_r(lt, buf2), "%3s %3s %d %d:%d:%d %d\n",
2921 day, mon, &dd, &hh, &mm, &ss, &yyyy) != 7)
2922 g_warning("failed reading date/time");
2923
2924 g_snprintf(buf, len, "%s, %d %s %d %02d:%02d:%02d %s",
2925 day, dd, mon, yyyy, hh, mm, ss, (hidetz? "-0000": tzoffset(&t)));
2926 }
2927
get_rfc822_date(gchar * buf,gint len)2928 void get_rfc822_date(gchar *buf, gint len)
2929 {
2930 _get_rfc822_date(buf, len, FALSE);
2931 }
2932
get_rfc822_date_hide_tz(gchar * buf,gint len)2933 void get_rfc822_date_hide_tz(gchar *buf, gint len)
2934 {
2935 _get_rfc822_date(buf, len, TRUE);
2936 }
2937
debug_set_mode(gboolean mode)2938 void debug_set_mode(gboolean mode)
2939 {
2940 debug_mode = mode;
2941 }
2942
debug_get_mode(void)2943 gboolean debug_get_mode(void)
2944 {
2945 return debug_mode;
2946 }
2947
debug_print_real(const gchar * format,...)2948 void debug_print_real(const gchar *format, ...)
2949 {
2950 va_list args;
2951 gchar buf[BUFFSIZE];
2952
2953 if (!debug_mode) return;
2954
2955 va_start(args, format);
2956 g_vsnprintf(buf, sizeof(buf), format, args);
2957 va_end(args);
2958
2959 g_print("%s", buf);
2960 }
2961
2962
debug_srcname(const char * file)2963 const char * debug_srcname(const char *file)
2964 {
2965 const char *s = strrchr (file, '/');
2966 return s? s+1:file;
2967 }
2968
2969
subject_table_lookup(GHashTable * subject_table,gchar * subject)2970 void * subject_table_lookup(GHashTable *subject_table, gchar * subject)
2971 {
2972 if (subject == NULL)
2973 subject = "";
2974 else
2975 subject += subject_get_prefix_length(subject);
2976
2977 return g_hash_table_lookup(subject_table, subject);
2978 }
2979
subject_table_insert(GHashTable * subject_table,gchar * subject,void * data)2980 void subject_table_insert(GHashTable *subject_table, gchar * subject,
2981 void * data)
2982 {
2983 if (subject == NULL || *subject == 0)
2984 return;
2985 subject += subject_get_prefix_length(subject);
2986 g_hash_table_insert(subject_table, subject, data);
2987 }
2988
subject_table_remove(GHashTable * subject_table,gchar * subject)2989 void subject_table_remove(GHashTable *subject_table, gchar * subject)
2990 {
2991 if (subject == NULL)
2992 return;
2993
2994 subject += subject_get_prefix_length(subject);
2995 g_hash_table_remove(subject_table, subject);
2996 }
2997
2998 static regex_t u_regex;
2999 static gboolean u_init_;
3000
utils_free_regex(void)3001 void utils_free_regex(void)
3002 {
3003 if (u_init_) {
3004 regfree(&u_regex);
3005 u_init_ = FALSE;
3006 }
3007 }
3008
3009 /*!
3010 *\brief Check if a string is prefixed with known (combinations)
3011 * of prefixes. The function assumes that each prefix
3012 * is terminated by zero or exactly _one_ space.
3013 *
3014 *\param str String to check for a prefixes
3015 *
3016 *\return int Number of chars in the prefix that should be skipped
3017 * for a "clean" subject line. If no prefix was found, 0
3018 * is returned.
3019 */
subject_get_prefix_length(const gchar * subject)3020 int subject_get_prefix_length(const gchar *subject)
3021 {
3022 /*!< Array with allowable reply prefixes regexps. */
3023 static const gchar * const prefixes[] = {
3024 "Re\\:", /* "Re:" */
3025 "Re\\[[1-9][0-9]*\\]\\:", /* "Re[XXX]:" (non-conforming news mail clients) */
3026 "Antw\\:", /* "Antw:" (Dutch / German Outlook) */
3027 "Aw\\:", /* "Aw:" (German) */
3028 "Antwort\\:", /* "Antwort:" (German Lotus Notes) */
3029 "Res\\:", /* "Res:" (Spanish/Brazilian Outlook) */
3030 "Fw\\:", /* "Fw:" Forward */
3031 "Fwd\\:", /* "Fwd:" Forward */
3032 "Enc\\:", /* "Enc:" Forward (Brazilian Outlook) */
3033 "Odp\\:", /* "Odp:" Re (Polish Outlook) */
3034 "Rif\\:", /* "Rif:" (Italian Outlook) */
3035 "Sv\\:", /* "Sv" (Norwegian) */
3036 "Vs\\:", /* "Vs" (Norwegian) */
3037 "Ad\\:", /* "Ad" (Norwegian) */
3038 "\347\255\224\345\244\215\\:", /* "Re" (Chinese, UTF-8) */
3039 "R\303\251f\\. \\:", /* "R�f. :" (French Lotus Notes) */
3040 "Re \\:", /* "Re :" (French Yahoo Mail) */
3041 /* add more */
3042 };
3043 const int PREFIXES = sizeof prefixes / sizeof prefixes[0];
3044 int n;
3045 regmatch_t pos;
3046
3047 if (!subject) return 0;
3048 if (!*subject) return 0;
3049
3050 if (!u_init_) {
3051 GString *s = g_string_new("");
3052
3053 for (n = 0; n < PREFIXES; n++)
3054 /* Terminate each prefix regexpression by a
3055 * "\ ?" (zero or ONE space), and OR them */
3056 g_string_append_printf(s, "(%s\\ ?)%s",
3057 prefixes[n],
3058 n < PREFIXES - 1 ?
3059 "|" : "");
3060
3061 g_string_prepend(s, "(");
3062 g_string_append(s, ")+"); /* match at least once */
3063 g_string_prepend(s, "^\\ *"); /* from beginning of line */
3064
3065
3066 /* We now have something like "^\ *((PREFIX1\ ?)|(PREFIX2\ ?))+"
3067 * TODO: Should this be "^\ *(((PREFIX1)|(PREFIX2))\ ?)+" ??? */
3068 if (regcomp(&u_regex, s->str, REG_EXTENDED | REG_ICASE)) {
3069 debug_print("Error compiling regexp %s\n", s->str);
3070 g_string_free(s, TRUE);
3071 return 0;
3072 } else {
3073 u_init_ = TRUE;
3074 g_string_free(s, TRUE);
3075 }
3076 }
3077
3078 if (!regexec(&u_regex, subject, 1, &pos, 0) && pos.rm_so != -1)
3079 return pos.rm_eo;
3080 else
3081 return 0;
3082 }
3083
g_stricase_hash(gconstpointer gptr)3084 static guint g_stricase_hash(gconstpointer gptr)
3085 {
3086 guint hash_result = 0;
3087 const char *str;
3088
3089 for (str = gptr; str && *str; str++) {
3090 hash_result += toupper(*str);
3091 }
3092
3093 return hash_result;
3094 }
3095
g_stricase_equal(gconstpointer gptr1,gconstpointer gptr2)3096 static gint g_stricase_equal(gconstpointer gptr1, gconstpointer gptr2)
3097 {
3098 const char *str1 = gptr1;
3099 const char *str2 = gptr2;
3100
3101 return !strcasecmp(str1, str2);
3102 }
3103
g_int_compare(gconstpointer a,gconstpointer b)3104 gint g_int_compare(gconstpointer a, gconstpointer b)
3105 {
3106 return GPOINTER_TO_INT(a) - GPOINTER_TO_INT(b);
3107 }
3108
3109 /*
3110 quote_cmd_argument()
3111
3112 return a quoted string safely usable in argument of a command.
3113
3114 code is extracted and adapted from etPan! project -- DINH V. Ho�.
3115 */
3116
quote_cmd_argument(gchar * result,guint size,const gchar * path)3117 gint quote_cmd_argument(gchar * result, guint size,
3118 const gchar * path)
3119 {
3120 const gchar * p;
3121 gchar * result_p;
3122 guint remaining;
3123
3124 result_p = result;
3125 remaining = size;
3126
3127 for(p = path ; * p != '\0' ; p ++) {
3128
3129 if (isalnum((guchar)*p) || (* p == '/')) {
3130 if (remaining > 0) {
3131 * result_p = * p;
3132 result_p ++;
3133 remaining --;
3134 }
3135 else {
3136 result[size - 1] = '\0';
3137 return -1;
3138 }
3139 }
3140 else {
3141 if (remaining >= 2) {
3142 * result_p = '\\';
3143 result_p ++;
3144 * result_p = * p;
3145 result_p ++;
3146 remaining -= 2;
3147 }
3148 else {
3149 result[size - 1] = '\0';
3150 return -1;
3151 }
3152 }
3153 }
3154 if (remaining > 0) {
3155 * result_p = '\0';
3156 }
3157 else {
3158 result[size - 1] = '\0';
3159 return -1;
3160 }
3161
3162 return 0;
3163 }
3164
3165 typedef struct
3166 {
3167 GNode *parent;
3168 GNodeMapFunc func;
3169 gpointer data;
3170 } GNodeMapData;
3171
g_node_map_recursive(GNode * node,gpointer data)3172 static void g_node_map_recursive(GNode *node, gpointer data)
3173 {
3174 GNodeMapData *mapdata = (GNodeMapData *) data;
3175 GNode *newnode;
3176 GNodeMapData newmapdata;
3177 gpointer newdata;
3178
3179 newdata = mapdata->func(node->data, mapdata->data);
3180 if (newdata != NULL) {
3181 newnode = g_node_new(newdata);
3182 g_node_append(mapdata->parent, newnode);
3183
3184 newmapdata.parent = newnode;
3185 newmapdata.func = mapdata->func;
3186 newmapdata.data = mapdata->data;
3187
3188 g_node_children_foreach(node, G_TRAVERSE_ALL, g_node_map_recursive, &newmapdata);
3189 }
3190 }
3191
g_node_map(GNode * node,GNodeMapFunc func,gpointer data)3192 GNode *g_node_map(GNode *node, GNodeMapFunc func, gpointer data)
3193 {
3194 GNode *root;
3195 GNodeMapData mapdata;
3196
3197 cm_return_val_if_fail(node != NULL, NULL);
3198 cm_return_val_if_fail(func != NULL, NULL);
3199
3200 root = g_node_new(func(node->data, data));
3201
3202 mapdata.parent = root;
3203 mapdata.func = func;
3204 mapdata.data = data;
3205
3206 g_node_children_foreach(node, G_TRAVERSE_ALL, g_node_map_recursive, &mapdata);
3207
3208 return root;
3209 }
3210
3211 #define HEX_TO_INT(val, hex) \
3212 { \
3213 gchar c = hex; \
3214 \
3215 if ('0' <= c && c <= '9') { \
3216 val = c - '0'; \
3217 } else if ('a' <= c && c <= 'f') { \
3218 val = c - 'a' + 10; \
3219 } else if ('A' <= c && c <= 'F') { \
3220 val = c - 'A' + 10; \
3221 } else { \
3222 val = -1; \
3223 } \
3224 }
3225
get_hex_value(guchar * out,gchar c1,gchar c2)3226 gboolean get_hex_value(guchar *out, gchar c1, gchar c2)
3227 {
3228 gint hi, lo;
3229
3230 HEX_TO_INT(hi, c1);
3231 HEX_TO_INT(lo, c2);
3232
3233 if (hi == -1 || lo == -1)
3234 return FALSE;
3235
3236 *out = (hi << 4) + lo;
3237 return TRUE;
3238 }
3239
3240 #define INT_TO_HEX(hex, val) \
3241 { \
3242 if ((val) < 10) \
3243 hex = '0' + (val); \
3244 else \
3245 hex = 'A' + (val) - 10; \
3246 }
3247
get_hex_str(gchar * out,guchar ch)3248 void get_hex_str(gchar *out, guchar ch)
3249 {
3250 gchar hex;
3251
3252 INT_TO_HEX(hex, ch >> 4);
3253 *out++ = hex;
3254 INT_TO_HEX(hex, ch & 0x0f);
3255 *out = hex;
3256 }
3257
3258 #undef REF_DEBUG
3259 #ifndef REF_DEBUG
3260 #define G_PRINT_REF 1 == 1 ? (void) 0 : (void)
3261 #else
3262 #define G_PRINT_REF g_print
3263 #endif
3264
3265 /*!
3266 *\brief Register ref counted pointer. It is based on GBoxed, so should
3267 * work with anything that uses the GType system. The semantics
3268 * are similar to a C++ auto pointer, with the exception that
3269 * C doesn't have automatic closure (calling destructors) when
3270 * exiting a block scope.
3271 * Use the \ref G_TYPE_AUTO_POINTER macro instead of calling this
3272 * function directly.
3273 *
3274 *\return GType A GType type.
3275 */
g_auto_pointer_register(void)3276 GType g_auto_pointer_register(void)
3277 {
3278 static GType auto_pointer_type;
3279 if (!auto_pointer_type)
3280 auto_pointer_type =
3281 g_boxed_type_register_static
3282 ("G_TYPE_AUTO_POINTER",
3283 (GBoxedCopyFunc) g_auto_pointer_copy,
3284 (GBoxedFreeFunc) g_auto_pointer_free);
3285 return auto_pointer_type;
3286 }
3287
3288 /*!
3289 *\brief Structure with g_new() allocated pointer guarded by the
3290 * auto pointer
3291 */
3292 typedef struct AutoPointerRef {
3293 void (*free) (gpointer);
3294 gpointer pointer;
3295 glong cnt;
3296 } AutoPointerRef;
3297
3298 /*!
3299 *\brief The auto pointer opaque structure that references the
3300 * pointer guard block.
3301 */
3302 typedef struct AutoPointer {
3303 AutoPointerRef *ref;
3304 gpointer ptr; /*!< access to protected pointer */
3305 } AutoPointer;
3306
3307 /*!
3308 *\brief Creates an auto pointer for a g_new()ed pointer. Example:
3309 *
3310 *\code
3311 *
3312 * ... tell gtk_list_store it should use a G_TYPE_AUTO_POINTER
3313 * ... when assigning, copying and freeing storage elements
3314 *
3315 * gtk_list_store_new(N_S_COLUMNS,
3316 * G_TYPE_AUTO_POINTER,
3317 * -1);
3318 *
3319 *
3320 * Template *precious_data = g_new0(Template, 1);
3321 * g_pointer protect = g_auto_pointer_new(precious_data);
3322 *
3323 * gtk_list_store_set(container, &iter,
3324 * S_DATA, protect,
3325 * -1);
3326 *
3327 * ... the gtk_list_store has copied the pointer and
3328 * ... incremented its reference count, we should free
3329 * ... the auto pointer (in C++ a destructor would do
3330 * ... this for us when leaving block scope)
3331 *
3332 * g_auto_pointer_free(protect);
3333 *
3334 * ... gtk_list_store_set() now manages the data. When
3335 * ... *explicitly* requesting a pointer from the list
3336 * ... store, don't forget you get a copy that should be
3337 * ... freed with g_auto_pointer_free() eventually.
3338 *
3339 *\endcode
3340 *
3341 *\param pointer Pointer to be guarded.
3342 *
3343 *\return GAuto * Pointer that should be used in containers with
3344 * GType support.
3345 */
g_auto_pointer_new(gpointer p)3346 GAuto *g_auto_pointer_new(gpointer p)
3347 {
3348 AutoPointerRef *ref;
3349 AutoPointer *ptr;
3350
3351 if (p == NULL)
3352 return NULL;
3353
3354 ref = g_new0(AutoPointerRef, 1);
3355 ptr = g_new0(AutoPointer, 1);
3356
3357 ref->pointer = p;
3358 ref->free = g_free;
3359 ref->cnt = 1;
3360
3361 ptr->ref = ref;
3362 ptr->ptr = p;
3363
3364 #ifdef REF_DEBUG
3365 G_PRINT_REF ("XXXX ALLOC(%lx)\n", p);
3366 #endif
3367 return ptr;
3368 }
3369
3370 /*!
3371 *\brief Allocate an autopointer using the passed \a free function to
3372 * free the guarded pointer
3373 */
g_auto_pointer_new_with_free(gpointer p,GFreeFunc free_)3374 GAuto *g_auto_pointer_new_with_free(gpointer p, GFreeFunc free_)
3375 {
3376 AutoPointer *aptr;
3377
3378 if (p == NULL)
3379 return NULL;
3380
3381 aptr = g_auto_pointer_new(p);
3382 aptr->ref->free = free_;
3383 return aptr;
3384 }
3385
g_auto_pointer_get_ptr(GAuto * auto_ptr)3386 gpointer g_auto_pointer_get_ptr(GAuto *auto_ptr)
3387 {
3388 if (auto_ptr == NULL)
3389 return NULL;
3390 return ((AutoPointer *) auto_ptr)->ptr;
3391 }
3392
3393 /*!
3394 *\brief Copies an auto pointer by. It's mostly not necessary
3395 * to call this function directly, unless you copy/assign
3396 * the guarded pointer.
3397 *
3398 *\param auto_ptr Auto pointer returned by previous call to
3399 * g_auto_pointer_new_XXX()
3400 *
3401 *\return gpointer An auto pointer
3402 */
g_auto_pointer_copy(GAuto * auto_ptr)3403 GAuto *g_auto_pointer_copy(GAuto *auto_ptr)
3404 {
3405 AutoPointer *ptr;
3406 AutoPointerRef *ref;
3407 AutoPointer *newp;
3408
3409 if (auto_ptr == NULL)
3410 return NULL;
3411
3412 ptr = auto_ptr;
3413 ref = ptr->ref;
3414 newp = g_new0(AutoPointer, 1);
3415
3416 newp->ref = ref;
3417 newp->ptr = ref->pointer;
3418 ++(ref->cnt);
3419
3420 #ifdef REF_DEBUG
3421 G_PRINT_REF ("XXXX COPY(%lx) -- REF (%d)\n", ref->pointer, ref->cnt);
3422 #endif
3423 return newp;
3424 }
3425
3426 /*!
3427 *\brief Free an auto pointer
3428 */
g_auto_pointer_free(GAuto * auto_ptr)3429 void g_auto_pointer_free(GAuto *auto_ptr)
3430 {
3431 AutoPointer *ptr;
3432 AutoPointerRef *ref;
3433
3434 if (auto_ptr == NULL)
3435 return;
3436
3437 ptr = auto_ptr;
3438 ref = ptr->ref;
3439
3440 if (--(ref->cnt) == 0) {
3441 #ifdef REF_DEBUG
3442 G_PRINT_REF ("XXXX FREE(%lx) -- REF (%d)\n", ref->pointer, ref->cnt);
3443 #endif
3444 ref->free(ref->pointer);
3445 g_free(ref);
3446 }
3447 #ifdef REF_DEBUG
3448 else
3449 G_PRINT_REF ("XXXX DEREF(%lx) -- REF (%d)\n", ref->pointer, ref->cnt);
3450 #endif
3451 g_free(ptr);
3452 }
3453
replace_returns(gchar * str)3454 void replace_returns(gchar *str)
3455 {
3456 if (!str)
3457 return;
3458
3459 while (strstr(str, "\n")) {
3460 *strstr(str, "\n") = ' ';
3461 }
3462 while (strstr(str, "\r")) {
3463 *strstr(str, "\r") = ' ';
3464 }
3465 }
3466
3467 /* get_uri_part() - retrieves a URI starting from scanpos.
3468 Returns TRUE if successful */
get_uri_part(const gchar * start,const gchar * scanpos,const gchar ** bp,const gchar ** ep,gboolean hdr)3469 gboolean get_uri_part(const gchar *start, const gchar *scanpos,
3470 const gchar **bp, const gchar **ep, gboolean hdr)
3471 {
3472 const gchar *ep_;
3473 gint parenthese_cnt = 0;
3474
3475 cm_return_val_if_fail(start != NULL, FALSE);
3476 cm_return_val_if_fail(scanpos != NULL, FALSE);
3477 cm_return_val_if_fail(bp != NULL, FALSE);
3478 cm_return_val_if_fail(ep != NULL, FALSE);
3479
3480 *bp = scanpos;
3481
3482 /* find end point of URI */
3483 for (ep_ = scanpos; *ep_ != '\0'; ep_ = g_utf8_next_char(ep_)) {
3484 gunichar u = g_utf8_get_char_validated(ep_, -1);
3485 if (!g_unichar_isgraph(u) ||
3486 u == (gunichar)-1 ||
3487 strchr("[]{}<>\"", *ep_)) {
3488 break;
3489 } else if (strchr("(", *ep_)) {
3490 parenthese_cnt++;
3491 } else if (strchr(")", *ep_)) {
3492 if (parenthese_cnt > 0)
3493 parenthese_cnt--;
3494 else
3495 break;
3496 }
3497 }
3498
3499 /* no punctuation at end of string */
3500
3501 /* FIXME: this stripping of trailing punctuations may bite with other URIs.
3502 * should pass some URI type to this function and decide on that whether
3503 * to perform punctuation stripping */
3504
3505 #define IS_REAL_PUNCT(ch) (g_ascii_ispunct(ch) && !strchr("/?=-_~)", ch))
3506
3507 for (; ep_ - 1 > scanpos + 1 &&
3508 IS_REAL_PUNCT(*(ep_ - 1));
3509 ep_--)
3510 ;
3511
3512 #undef IS_REAL_PUNCT
3513
3514 *ep = ep_;
3515
3516 return TRUE;
3517 }
3518
make_uri_string(const gchar * bp,const gchar * ep)3519 gchar *make_uri_string(const gchar *bp, const gchar *ep)
3520 {
3521 while (bp && *bp && g_ascii_isspace(*bp))
3522 bp++;
3523 return g_strndup(bp, ep - bp);
3524 }
3525
3526 /* valid mail address characters */
3527 #define IS_RFC822_CHAR(ch) \
3528 (IS_ASCII(ch) && \
3529 (ch) > 32 && \
3530 (ch) != 127 && \
3531 !g_ascii_isspace(ch) && \
3532 !strchr("(),;<>\"", (ch)))
3533
3534 /* alphabet and number within 7bit ASCII */
3535 #define IS_ASCII_ALNUM(ch) (IS_ASCII(ch) && g_ascii_isalnum(ch))
3536 #define IS_QUOTE(ch) ((ch) == '\'' || (ch) == '"')
3537
create_domain_tab(void)3538 static GHashTable *create_domain_tab(void)
3539 {
3540 gint n;
3541 GHashTable *htab = g_hash_table_new(g_stricase_hash, g_stricase_equal);
3542
3543 cm_return_val_if_fail(htab, NULL);
3544 for (n = 0; n < sizeof toplvl_domains / sizeof toplvl_domains[0]; n++)
3545 g_hash_table_insert(htab, (gpointer) toplvl_domains[n], (gpointer) toplvl_domains[n]);
3546 return htab;
3547 }
3548
is_toplvl_domain(GHashTable * tab,const gchar * first,const gchar * last)3549 static gboolean is_toplvl_domain(GHashTable *tab, const gchar *first, const gchar *last)
3550 {
3551 gchar buf[BUFFSIZE + 1];
3552 const gchar *m = buf + BUFFSIZE + 1;
3553 register gchar *p;
3554
3555 if (last - first > BUFFSIZE || first > last)
3556 return FALSE;
3557
3558 for (p = buf; p < m && first < last; *p++ = *first++)
3559 ;
3560 *p = 0;
3561
3562 return g_hash_table_lookup(tab, buf) != NULL;
3563 }
3564
3565 /* get_email_part() - retrieves an email address. Returns TRUE if successful */
get_email_part(const gchar * start,const gchar * scanpos,const gchar ** bp,const gchar ** ep,gboolean hdr)3566 gboolean get_email_part(const gchar *start, const gchar *scanpos,
3567 const gchar **bp, const gchar **ep, gboolean hdr)
3568 {
3569 /* more complex than the uri part because we need to scan back and forward starting from
3570 * the scan position. */
3571 gboolean result = FALSE;
3572 const gchar *bp_ = NULL;
3573 const gchar *ep_ = NULL;
3574 static GHashTable *dom_tab;
3575 const gchar *last_dot = NULL;
3576 const gchar *prelast_dot = NULL;
3577 const gchar *last_tld_char = NULL;
3578
3579 /* the informative part of the email address (describing the name
3580 * of the email address owner) may contain quoted parts. the
3581 * closure stack stores the last encountered quotes. */
3582 gchar closure_stack[128];
3583 gchar *ptr = closure_stack;
3584
3585 cm_return_val_if_fail(start != NULL, FALSE);
3586 cm_return_val_if_fail(scanpos != NULL, FALSE);
3587 cm_return_val_if_fail(bp != NULL, FALSE);
3588 cm_return_val_if_fail(ep != NULL, FALSE);
3589
3590 if (hdr) {
3591 const gchar *start_quote = NULL;
3592 const gchar *end_quote = NULL;
3593 search_again:
3594 /* go to the real start */
3595 if (start[0] == ',')
3596 start++;
3597 if (start[0] == ';')
3598 start++;
3599 while (start[0] == '\n' || start[0] == '\r')
3600 start++;
3601 while (start[0] == ' ' || start[0] == '\t')
3602 start++;
3603
3604 *bp = start;
3605
3606 /* check if there are quotes (to skip , in them) */
3607 if (*start == '"') {
3608 start_quote = start;
3609 start++;
3610 end_quote = strstr(start, "\"");
3611 } else {
3612 start_quote = NULL;
3613 end_quote = NULL;
3614 }
3615
3616 /* skip anything between quotes */
3617 if (start_quote && end_quote) {
3618 start = end_quote;
3619
3620 }
3621
3622 /* find end (either , or ; or end of line) */
3623 if (strstr(start, ",") && strstr(start, ";"))
3624 *ep = strstr(start,",") < strstr(start, ";")
3625 ? strstr(start, ",") : strstr(start, ";");
3626 else if (strstr(start, ","))
3627 *ep = strstr(start, ",");
3628 else if (strstr(start, ";"))
3629 *ep = strstr(start, ";");
3630 else
3631 *ep = start+strlen(start);
3632
3633 /* go back to real start */
3634 if (start_quote && end_quote) {
3635 start = start_quote;
3636 }
3637
3638 /* check there's still an @ in that, or search
3639 * further if possible */
3640 if (strstr(start, "@") && strstr(start, "@") < *ep)
3641 return TRUE;
3642 else if (*ep < start+strlen(start)) {
3643 start = *ep;
3644 goto search_again;
3645 } else if (start_quote && strstr(start, "\"") && strstr(start, "\"") < *ep) {
3646 *bp = start_quote;
3647 return TRUE;
3648 } else
3649 return FALSE;
3650 }
3651
3652 if (!dom_tab)
3653 dom_tab = create_domain_tab();
3654 cm_return_val_if_fail(dom_tab, FALSE);
3655
3656 /* scan start of address */
3657 for (bp_ = scanpos - 1;
3658 bp_ >= start && IS_RFC822_CHAR(*(const guchar *)bp_); bp_--)
3659 ;
3660
3661 /* TODO: should start with an alnum? */
3662 bp_++;
3663 for (; bp_ < scanpos && !IS_ASCII_ALNUM(*(const guchar *)bp_); bp_++)
3664 ;
3665
3666 if (bp_ != scanpos) {
3667 /* scan end of address */
3668 for (ep_ = scanpos + 1;
3669 *ep_ && IS_RFC822_CHAR(*(const guchar *)ep_); ep_++)
3670 if (*ep_ == '.') {
3671 prelast_dot = last_dot;
3672 last_dot = ep_;
3673 if (*(last_dot + 1) == '.') {
3674 if (prelast_dot == NULL)
3675 return FALSE;
3676 last_dot = prelast_dot;
3677 break;
3678 }
3679 }
3680
3681 /* TODO: really should terminate with an alnum? */
3682 for (; ep_ > scanpos && !IS_ASCII_ALNUM(*(const guchar *)ep_);
3683 --ep_)
3684 ;
3685 ep_++;
3686
3687 if (last_dot == NULL)
3688 return FALSE;
3689 if (last_dot >= ep_)
3690 last_dot = prelast_dot;
3691 if (last_dot == NULL || (scanpos + 1 >= last_dot))
3692 return FALSE;
3693 last_dot++;
3694
3695 for (last_tld_char = last_dot; last_tld_char < ep_; last_tld_char++)
3696 if (*last_tld_char == '?')
3697 break;
3698
3699 if (is_toplvl_domain(dom_tab, last_dot, last_tld_char))
3700 result = TRUE;
3701
3702 *ep = ep_;
3703 *bp = bp_;
3704 }
3705
3706 if (!result) return FALSE;
3707
3708 if (*ep_ && bp_ != start && *(bp_ - 1) == '"' && *(ep_) == '"'
3709 && *(ep_ + 1) == ' ' && *(ep_ + 2) == '<'
3710 && IS_RFC822_CHAR(*(ep_ + 3))) {
3711 /* this informative part with an @ in it is
3712 * followed by the email address */
3713 ep_ += 3;
3714
3715 /* go to matching '>' (or next non-rfc822 char, like \n) */
3716 for (; *ep_ != '>' && *ep_ != '\0' && IS_RFC822_CHAR(*ep_); ep_++)
3717 ;
3718
3719 /* include the bracket */
3720 if (*ep_ == '>') ep_++;
3721
3722 /* include the leading quote */
3723 bp_--;
3724
3725 *ep = ep_;
3726 *bp = bp_;
3727 return TRUE;
3728 }
3729
3730 /* skip if it's between quotes "'alfons@proteus.demon.nl'" <alfons@proteus.demon.nl> */
3731 if (bp_ - 1 > start && IS_QUOTE(*(bp_ - 1)) && IS_QUOTE(*ep_))
3732 return FALSE;
3733
3734 /* see if this is <bracketed>; in this case we also scan for the informative part. */
3735 if (bp_ - 1 <= start || *(bp_ - 1) != '<' || *ep_ != '>')
3736 return TRUE;
3737
3738 #define FULL_STACK() ((size_t) (ptr - closure_stack) >= sizeof closure_stack)
3739 #define IN_STACK() (ptr > closure_stack)
3740 /* has underrun check */
3741 #define POP_STACK() if(IN_STACK()) --ptr
3742 /* has overrun check */
3743 #define PUSH_STACK(c) if(!FULL_STACK()) *ptr++ = (c); else return TRUE
3744 /* has underrun check */
3745 #define PEEK_STACK() (IN_STACK() ? *(ptr - 1) : 0)
3746
3747 ep_++;
3748
3749 /* scan for the informative part. */
3750 for (bp_ -= 2; bp_ >= start; bp_--) {
3751 /* if closure on the stack keep scanning */
3752 if (PEEK_STACK() == *bp_) {
3753 POP_STACK();
3754 continue;
3755 }
3756 if (!IN_STACK() && (*bp_ == '\'' || *bp_ == '"')) {
3757 PUSH_STACK(*bp_);
3758 continue;
3759 }
3760
3761 /* if nothing in the closure stack, do the special conditions
3762 * the following if..else expression simply checks whether
3763 * a token is acceptable. if not acceptable, the clause
3764 * should terminate the loop with a 'break' */
3765 if (!PEEK_STACK()) {
3766 if (*bp_ == '-'
3767 && (((bp_ - 1) >= start) && isalnum(*(bp_ - 1)))
3768 && (((bp_ + 1) < ep_) && isalnum(*(bp_ + 1)))) {
3769 /* hyphens are allowed, but only in
3770 between alnums */
3771 } else if (strchr(" \"'", *bp_)) {
3772 /* but anything not being a punctiation
3773 is ok */
3774 } else {
3775 break; /* anything else is rejected */
3776 }
3777 }
3778 }
3779
3780 bp_++;
3781
3782 /* scan forward (should start with an alnum) */
3783 for (; *bp_ != '<' && isspace(*bp_) && *bp_ != '"'; bp_++)
3784 ;
3785 #undef PEEK_STACK
3786 #undef PUSH_STACK
3787 #undef POP_STACK
3788 #undef IN_STACK
3789 #undef FULL_STACK
3790
3791
3792 *bp = bp_;
3793 *ep = ep_;
3794
3795 return result;
3796 }
3797
3798 #undef IS_QUOTE
3799 #undef IS_ASCII_ALNUM
3800 #undef IS_RFC822_CHAR
3801
make_email_string(const gchar * bp,const gchar * ep)3802 gchar *make_email_string(const gchar *bp, const gchar *ep)
3803 {
3804 /* returns a mailto: URI; mailto: is also used to detect the
3805 * uri type later on in the button_pressed signal handler */
3806 gchar *tmp;
3807 gchar *result;
3808 gchar *colon, *at;
3809
3810 tmp = g_strndup(bp, ep - bp);
3811
3812 /* If there is a colon in the username part of the address,
3813 * we're dealing with an URI for some other protocol - do
3814 * not prefix with mailto: in such case. */
3815 colon = strchr(tmp, ':');
3816 at = strchr(tmp, '@');
3817 if (colon != NULL && at != NULL && colon < at) {
3818 result = tmp;
3819 } else {
3820 result = g_strconcat("mailto:", tmp, NULL);
3821 g_free(tmp);
3822 }
3823
3824 return result;
3825 }
3826
make_http_string(const gchar * bp,const gchar * ep)3827 gchar *make_http_string(const gchar *bp, const gchar *ep)
3828 {
3829 /* returns an http: URI; */
3830 gchar *tmp;
3831 gchar *result;
3832
3833 while (bp && *bp && g_ascii_isspace(*bp))
3834 bp++;
3835 tmp = g_strndup(bp, ep - bp);
3836 result = g_strconcat("http://", tmp, NULL);
3837 g_free(tmp);
3838
3839 return result;
3840 }
3841
mailcap_get_command_in_file(const gchar * path,const gchar * type,const gchar * file_to_open)3842 static gchar *mailcap_get_command_in_file(const gchar *path, const gchar *type, const gchar *file_to_open)
3843 {
3844 FILE *fp = claws_fopen(path, "rb");
3845 gchar buf[BUFFSIZE];
3846 gchar *result = NULL;
3847 if (!fp)
3848 return NULL;
3849 while (claws_fgets(buf, sizeof (buf), fp) != NULL) {
3850 gchar **parts = g_strsplit(buf, ";", 3);
3851 gchar *trimmed = parts[0];
3852 while (trimmed[0] == ' ' || trimmed[0] == '\t')
3853 trimmed++;
3854 while (trimmed[strlen(trimmed)-1] == ' ' || trimmed[strlen(trimmed)-1] == '\t')
3855 trimmed[strlen(trimmed)-1] = '\0';
3856
3857 if (!strcmp(trimmed, type)) {
3858 gboolean needsterminal = FALSE;
3859 if (parts[2] && strstr(parts[2], "needsterminal")) {
3860 needsterminal = TRUE;
3861 }
3862 if (parts[2] && strstr(parts[2], "test=")) {
3863 gchar *orig_testcmd = g_strdup(strstr(parts[2], "test=")+5);
3864 gchar *testcmd = orig_testcmd;
3865 if (strstr(testcmd,";"))
3866 *(strstr(testcmd,";")) = '\0';
3867 while (testcmd[0] == ' ' || testcmd[0] == '\t')
3868 testcmd++;
3869 while (testcmd[strlen(testcmd)-1] == '\n')
3870 testcmd[strlen(testcmd)-1] = '\0';
3871 while (testcmd[strlen(testcmd)-1] == '\r')
3872 testcmd[strlen(testcmd)-1] = '\0';
3873 while (testcmd[strlen(testcmd)-1] == ' ' || testcmd[strlen(testcmd)-1] == '\t')
3874 testcmd[strlen(testcmd)-1] = '\0';
3875
3876 if (strstr(testcmd, "%s")) {
3877 gchar *tmp = g_strdup_printf(testcmd, file_to_open);
3878 gint res = system(tmp);
3879 g_free(tmp);
3880 g_free(orig_testcmd);
3881
3882 if (res != 0) {
3883 g_strfreev(parts);
3884 continue;
3885 }
3886 } else {
3887 gint res = system(testcmd);
3888 g_free(orig_testcmd);
3889
3890 if (res != 0) {
3891 g_strfreev(parts);
3892 continue;
3893 }
3894 }
3895 }
3896
3897 trimmed = parts[1];
3898 while (trimmed[0] == ' ' || trimmed[0] == '\t')
3899 trimmed++;
3900 while (trimmed[strlen(trimmed)-1] == '\n')
3901 trimmed[strlen(trimmed)-1] = '\0';
3902 while (trimmed[strlen(trimmed)-1] == '\r')
3903 trimmed[strlen(trimmed)-1] = '\0';
3904 while (trimmed[strlen(trimmed)-1] == ' ' || trimmed[strlen(trimmed)-1] == '\t')
3905 trimmed[strlen(trimmed)-1] = '\0';
3906 result = g_strdup(trimmed);
3907 g_strfreev(parts);
3908 claws_fclose(fp);
3909 if (needsterminal) {
3910 gchar *tmp = g_strdup_printf("xterm -e %s", result);
3911 g_free(result);
3912 result = tmp;
3913 }
3914 return result;
3915 }
3916 g_strfreev(parts);
3917 }
3918 claws_fclose(fp);
3919 return NULL;
3920 }
mailcap_get_command_for_type(const gchar * type,const gchar * file_to_open)3921 gchar *mailcap_get_command_for_type(const gchar *type, const gchar *file_to_open)
3922 {
3923 gchar *result = NULL;
3924 gchar *path = NULL;
3925 if (type == NULL)
3926 return NULL;
3927 path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S, ".mailcap", NULL);
3928 result = mailcap_get_command_in_file(path, type, file_to_open);
3929 g_free(path);
3930 if (result)
3931 return result;
3932 result = mailcap_get_command_in_file("/etc/mailcap", type, file_to_open);
3933 return result;
3934 }
3935
mailcap_update_default(const gchar * type,const gchar * command)3936 void mailcap_update_default(const gchar *type, const gchar *command)
3937 {
3938 gchar *path = NULL, *outpath = NULL;
3939 path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S, ".mailcap", NULL);
3940 outpath = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S, ".mailcap.new", NULL);
3941 FILE *fp = claws_fopen(path, "rb");
3942 FILE *outfp = NULL;
3943 gchar buf[BUFFSIZE];
3944 gboolean err = FALSE;
3945
3946 if (!fp) {
3947 fp = claws_fopen(path, "a");
3948 if (!fp) {
3949 g_warning("failed to create file %s", path);
3950 g_free(path);
3951 g_free(outpath);
3952 return;
3953 }
3954 fp = g_freopen(path, "rb", fp);
3955 if (!fp) {
3956 g_warning("failed to reopen file %s", path);
3957 g_free(path);
3958 g_free(outpath);
3959 return;
3960 }
3961 }
3962
3963 outfp = claws_fopen(outpath, "wb");
3964 if (!outfp) {
3965 g_warning("failed to create file %s", outpath);
3966 g_free(path);
3967 g_free(outpath);
3968 claws_fclose(fp);
3969 return;
3970 }
3971 while (fp && claws_fgets(buf, sizeof (buf), fp) != NULL) {
3972 gchar **parts = g_strsplit(buf, ";", 3);
3973 gchar *trimmed = parts[0];
3974 while (trimmed[0] == ' ')
3975 trimmed++;
3976 while (trimmed[strlen(trimmed)-1] == ' ')
3977 trimmed[strlen(trimmed)-1] = '\0';
3978
3979 if (!strcmp(trimmed, type)) {
3980 g_strfreev(parts);
3981 continue;
3982 }
3983 else {
3984 if(claws_fputs(buf, outfp) == EOF) {
3985 err = TRUE;
3986 break;
3987 }
3988 }
3989 g_strfreev(parts);
3990 }
3991 if (fprintf(outfp, "%s; %s\n", type, command) < 0)
3992 err = TRUE;
3993
3994 if (fp)
3995 claws_fclose(fp);
3996
3997 if (claws_safe_fclose(outfp) == EOF)
3998 err = TRUE;
3999
4000 if (!err)
4001 g_rename(outpath, path);
4002
4003 g_free(path);
4004 g_free(outpath);
4005 }
4006
4007 /* crude test to see if a file is an email. */
file_is_email(const gchar * filename)4008 gboolean file_is_email (const gchar *filename)
4009 {
4010 FILE *fp = NULL;
4011 gchar buffer[2048];
4012 gint score = 0;
4013 if (filename == NULL)
4014 return FALSE;
4015 if ((fp = claws_fopen(filename, "rb")) == NULL)
4016 return FALSE;
4017 while (score < 3
4018 && claws_fgets(buffer, sizeof (buffer), fp) != NULL) {
4019 if (!strncmp(buffer, "From:", strlen("From:")))
4020 score++;
4021 else if (!strncmp(buffer, "Date:", strlen("Date:")))
4022 score++;
4023 else if (!strncmp(buffer, "Message-ID:", strlen("Message-ID:")))
4024 score++;
4025 else if (!strncmp(buffer, "Subject:", strlen("Subject:")))
4026 score++;
4027 else if (!strcmp(buffer, "\r\n")) {
4028 debug_print("End of headers\n");
4029 break;
4030 }
4031 }
4032 claws_fclose(fp);
4033 return (score >= 3);
4034 }
4035
sc_g_list_bigger(GList * list,gint max)4036 gboolean sc_g_list_bigger(GList *list, gint max)
4037 {
4038 GList *cur = list;
4039 int i = 0;
4040 while (cur && i <= max+1) {
4041 i++;
4042 cur = cur->next;
4043 }
4044 return (i > max);
4045 }
4046
sc_g_slist_bigger(GSList * list,gint max)4047 gboolean sc_g_slist_bigger(GSList *list, gint max)
4048 {
4049 GSList *cur = list;
4050 int i = 0;
4051 while (cur && i <= max+1) {
4052 i++;
4053 cur = cur->next;
4054 }
4055 return (i > max);
4056 }
4057
4058 const gchar *daynames[] = {NULL, NULL, NULL, NULL, NULL, NULL, NULL};
4059 const gchar *monthnames[] = {NULL, NULL, NULL, NULL, NULL, NULL,
4060 NULL, NULL, NULL, NULL, NULL, NULL};
4061 const gchar *s_daynames[] = {NULL, NULL, NULL, NULL, NULL, NULL, NULL};
4062 const gchar *s_monthnames[] = {NULL, NULL, NULL, NULL, NULL, NULL,
4063 NULL, NULL, NULL, NULL, NULL, NULL};
4064
4065 gint daynames_len[] = {0,0,0,0,0,0,0};
4066 gint monthnames_len[] = {0,0,0,0,0,0,
4067 0,0,0,0,0,0};
4068 gint s_daynames_len[] = {0,0,0,0,0,0,0};
4069 gint s_monthnames_len[] = {0,0,0,0,0,0,
4070 0,0,0,0,0,0};
4071 const gchar *s_am_up = NULL;
4072 const gchar *s_pm_up = NULL;
4073 const gchar *s_am_low = NULL;
4074 const gchar *s_pm_low = NULL;
4075
4076 gint s_am_up_len = 0;
4077 gint s_pm_up_len = 0;
4078 gint s_am_low_len = 0;
4079 gint s_pm_low_len = 0;
4080
4081 static gboolean time_names_init_done = FALSE;
4082
init_time_names(void)4083 static void init_time_names(void)
4084 {
4085 int i = 0;
4086
4087 daynames[0] = C_("Complete day name for use by strftime", "Sunday");
4088 daynames[1] = C_("Complete day name for use by strftime", "Monday");
4089 daynames[2] = C_("Complete day name for use by strftime", "Tuesday");
4090 daynames[3] = C_("Complete day name for use by strftime", "Wednesday");
4091 daynames[4] = C_("Complete day name for use by strftime", "Thursday");
4092 daynames[5] = C_("Complete day name for use by strftime", "Friday");
4093 daynames[6] = C_("Complete day name for use by strftime", "Saturday");
4094
4095 monthnames[0] = C_("Complete month name for use by strftime", "January");
4096 monthnames[1] = C_("Complete month name for use by strftime", "February");
4097 monthnames[2] = C_("Complete month name for use by strftime", "March");
4098 monthnames[3] = C_("Complete month name for use by strftime", "April");
4099 monthnames[4] = C_("Complete month name for use by strftime", "May");
4100 monthnames[5] = C_("Complete month name for use by strftime", "June");
4101 monthnames[6] = C_("Complete month name for use by strftime", "July");
4102 monthnames[7] = C_("Complete month name for use by strftime", "August");
4103 monthnames[8] = C_("Complete month name for use by strftime", "September");
4104 monthnames[9] = C_("Complete month name for use by strftime", "October");
4105 monthnames[10] = C_("Complete month name for use by strftime", "November");
4106 monthnames[11] = C_("Complete month name for use by strftime", "December");
4107
4108 s_daynames[0] = C_("Abbr. day name for use by strftime", "Sun");
4109 s_daynames[1] = C_("Abbr. day name for use by strftime", "Mon");
4110 s_daynames[2] = C_("Abbr. day name for use by strftime", "Tue");
4111 s_daynames[3] = C_("Abbr. day name for use by strftime", "Wed");
4112 s_daynames[4] = C_("Abbr. day name for use by strftime", "Thu");
4113 s_daynames[5] = C_("Abbr. day name for use by strftime", "Fri");
4114 s_daynames[6] = C_("Abbr. day name for use by strftime", "Sat");
4115
4116 s_monthnames[0] = C_("Abbr. month name for use by strftime", "Jan");
4117 s_monthnames[1] = C_("Abbr. month name for use by strftime", "Feb");
4118 s_monthnames[2] = C_("Abbr. month name for use by strftime", "Mar");
4119 s_monthnames[3] = C_("Abbr. month name for use by strftime", "Apr");
4120 s_monthnames[4] = C_("Abbr. month name for use by strftime", "May");
4121 s_monthnames[5] = C_("Abbr. month name for use by strftime", "Jun");
4122 s_monthnames[6] = C_("Abbr. month name for use by strftime", "Jul");
4123 s_monthnames[7] = C_("Abbr. month name for use by strftime", "Aug");
4124 s_monthnames[8] = C_("Abbr. month name for use by strftime", "Sep");
4125 s_monthnames[9] = C_("Abbr. month name for use by strftime", "Oct");
4126 s_monthnames[10] = C_("Abbr. month name for use by strftime", "Nov");
4127 s_monthnames[11] = C_("Abbr. month name for use by strftime", "Dec");
4128
4129 for (i = 0; i < 7; i++) {
4130 daynames_len[i] = strlen(daynames[i]);
4131 s_daynames_len[i] = strlen(s_daynames[i]);
4132 }
4133 for (i = 0; i < 12; i++) {
4134 monthnames_len[i] = strlen(monthnames[i]);
4135 s_monthnames_len[i] = strlen(s_monthnames[i]);
4136 }
4137
4138 s_am_up = C_("For use by strftime (morning)", "AM");
4139 s_pm_up = C_("For use by strftime (afternoon)", "PM");
4140 s_am_low = C_("For use by strftime (morning, lowercase)", "am");
4141 s_pm_low = C_("For use by strftime (afternoon, lowercase)", "pm");
4142
4143 s_am_up_len = strlen(s_am_up);
4144 s_pm_up_len = strlen(s_pm_up);
4145 s_am_low_len = strlen(s_am_low);
4146 s_pm_low_len = strlen(s_pm_low);
4147
4148 time_names_init_done = TRUE;
4149 }
4150
4151 #define CHECK_SIZE() { \
4152 total_done += len; \
4153 if (total_done >= buflen) { \
4154 buf[buflen-1] = '\0'; \
4155 return 0; \
4156 } \
4157 }
4158
fast_strftime(gchar * buf,gint buflen,const gchar * format,struct tm * lt)4159 size_t fast_strftime(gchar *buf, gint buflen, const gchar *format, struct tm *lt)
4160 {
4161 gchar *curpos = buf;
4162 gint total_done = 0;
4163 gchar subbuf[64], subfmt[64];
4164 static time_t last_tzset = (time_t)0;
4165
4166 if (!time_names_init_done)
4167 init_time_names();
4168
4169 if (format == NULL || lt == NULL)
4170 return 0;
4171
4172 if (last_tzset != time(NULL)) {
4173 tzset();
4174 last_tzset = time(NULL);
4175 }
4176 while(*format) {
4177 if (*format == '%') {
4178 gint len = 0, tmp = 0;
4179 format++;
4180 switch(*format) {
4181 case '%':
4182 len = 1; CHECK_SIZE();
4183 *curpos = '%';
4184 break;
4185 case 'a':
4186 len = s_daynames_len[lt->tm_wday]; CHECK_SIZE();
4187 strncpy2(curpos, s_daynames[lt->tm_wday], buflen - total_done);
4188 break;
4189 case 'A':
4190 len = daynames_len[lt->tm_wday]; CHECK_SIZE();
4191 strncpy2(curpos, daynames[lt->tm_wday], buflen - total_done);
4192 break;
4193 case 'b':
4194 case 'h':
4195 len = s_monthnames_len[lt->tm_mon]; CHECK_SIZE();
4196 strncpy2(curpos, s_monthnames[lt->tm_mon], buflen - total_done);
4197 break;
4198 case 'B':
4199 len = monthnames_len[lt->tm_mon]; CHECK_SIZE();
4200 strncpy2(curpos, monthnames[lt->tm_mon], buflen - total_done);
4201 break;
4202 case 'c':
4203 strftime(subbuf, 64, "%c", lt);
4204 len = strlen(subbuf); CHECK_SIZE();
4205 strncpy2(curpos, subbuf, buflen - total_done);
4206 break;
4207 case 'C':
4208 total_done += 2; CHECK_SIZE();
4209 tmp = (lt->tm_year + 1900)/100;
4210 *curpos++ = '0'+(tmp / 10);
4211 *curpos++ = '0'+(tmp % 10);
4212 break;
4213 case 'd':
4214 total_done += 2; CHECK_SIZE();
4215 *curpos++ = '0'+(lt->tm_mday / 10);
4216 *curpos++ = '0'+(lt->tm_mday % 10);
4217 break;
4218 case 'D':
4219 total_done += 8; CHECK_SIZE();
4220 *curpos++ = '0'+((lt->tm_mon+1) / 10);
4221 *curpos++ = '0'+((lt->tm_mon+1) % 10);
4222 *curpos++ = '/';
4223 *curpos++ = '0'+(lt->tm_mday / 10);
4224 *curpos++ = '0'+(lt->tm_mday % 10);
4225 *curpos++ = '/';
4226 tmp = lt->tm_year%100;
4227 *curpos++ = '0'+(tmp / 10);
4228 *curpos++ = '0'+(tmp % 10);
4229 break;
4230 case 'e':
4231 len = 2; CHECK_SIZE();
4232 snprintf(curpos, buflen - total_done, "%2d", lt->tm_mday);
4233 break;
4234 case 'F':
4235 len = 10; CHECK_SIZE();
4236 snprintf(curpos, buflen - total_done, "%4d-%02d-%02d",
4237 lt->tm_year + 1900, lt->tm_mon +1, lt->tm_mday);
4238 break;
4239 case 'H':
4240 total_done += 2; CHECK_SIZE();
4241 *curpos++ = '0'+(lt->tm_hour / 10);
4242 *curpos++ = '0'+(lt->tm_hour % 10);
4243 break;
4244 case 'I':
4245 total_done += 2; CHECK_SIZE();
4246 tmp = lt->tm_hour;
4247 if (tmp > 12)
4248 tmp -= 12;
4249 else if (tmp == 0)
4250 tmp = 12;
4251 *curpos++ = '0'+(tmp / 10);
4252 *curpos++ = '0'+(tmp % 10);
4253 break;
4254 case 'j':
4255 len = 3; CHECK_SIZE();
4256 snprintf(curpos, buflen - total_done, "%03d", lt->tm_yday+1);
4257 break;
4258 case 'k':
4259 len = 2; CHECK_SIZE();
4260 snprintf(curpos, buflen - total_done, "%2d", lt->tm_hour);
4261 break;
4262 case 'l':
4263 len = 2; CHECK_SIZE();
4264 tmp = lt->tm_hour;
4265 if (tmp > 12)
4266 tmp -= 12;
4267 else if (tmp == 0)
4268 tmp = 12;
4269 snprintf(curpos, buflen - total_done, "%2d", tmp);
4270 break;
4271 case 'm':
4272 total_done += 2; CHECK_SIZE();
4273 tmp = lt->tm_mon + 1;
4274 *curpos++ = '0'+(tmp / 10);
4275 *curpos++ = '0'+(tmp % 10);
4276 break;
4277 case 'M':
4278 total_done += 2; CHECK_SIZE();
4279 *curpos++ = '0'+(lt->tm_min / 10);
4280 *curpos++ = '0'+(lt->tm_min % 10);
4281 break;
4282 case 'n':
4283 len = 1; CHECK_SIZE();
4284 *curpos = '\n';
4285 break;
4286 case 'p':
4287 if (lt->tm_hour >= 12) {
4288 len = s_pm_up_len; CHECK_SIZE();
4289 snprintf(curpos, buflen-total_done, "%s", s_pm_up);
4290 } else {
4291 len = s_am_up_len; CHECK_SIZE();
4292 snprintf(curpos, buflen-total_done, "%s", s_am_up);
4293 }
4294 break;
4295 case 'P':
4296 if (lt->tm_hour >= 12) {
4297 len = s_pm_low_len; CHECK_SIZE();
4298 snprintf(curpos, buflen-total_done, "%s", s_pm_low);
4299 } else {
4300 len = s_am_low_len; CHECK_SIZE();
4301 snprintf(curpos, buflen-total_done, "%s", s_am_low);
4302 }
4303 break;
4304 case 'r':
4305 #ifdef G_OS_WIN32
4306 strftime(subbuf, 64, "%I:%M:%S %p", lt);
4307 #else
4308 strftime(subbuf, 64, "%r", lt);
4309 #endif
4310 len = strlen(subbuf); CHECK_SIZE();
4311 strncpy2(curpos, subbuf, buflen - total_done);
4312 break;
4313 case 'R':
4314 total_done += 5; CHECK_SIZE();
4315 *curpos++ = '0'+(lt->tm_hour / 10);
4316 *curpos++ = '0'+(lt->tm_hour % 10);
4317 *curpos++ = ':';
4318 *curpos++ = '0'+(lt->tm_min / 10);
4319 *curpos++ = '0'+(lt->tm_min % 10);
4320 break;
4321 case 's':
4322 snprintf(subbuf, 64, "%lld", (long long)mktime(lt));
4323 len = strlen(subbuf); CHECK_SIZE();
4324 strncpy2(curpos, subbuf, buflen - total_done);
4325 break;
4326 case 'S':
4327 total_done += 2; CHECK_SIZE();
4328 *curpos++ = '0'+(lt->tm_sec / 10);
4329 *curpos++ = '0'+(lt->tm_sec % 10);
4330 break;
4331 case 't':
4332 len = 1; CHECK_SIZE();
4333 *curpos = '\t';
4334 break;
4335 case 'T':
4336 total_done += 8; CHECK_SIZE();
4337 *curpos++ = '0'+(lt->tm_hour / 10);
4338 *curpos++ = '0'+(lt->tm_hour % 10);
4339 *curpos++ = ':';
4340 *curpos++ = '0'+(lt->tm_min / 10);
4341 *curpos++ = '0'+(lt->tm_min % 10);
4342 *curpos++ = ':';
4343 *curpos++ = '0'+(lt->tm_sec / 10);
4344 *curpos++ = '0'+(lt->tm_sec % 10);
4345 break;
4346 case 'u':
4347 len = 1; CHECK_SIZE();
4348 snprintf(curpos, buflen - total_done, "%d", lt->tm_wday == 0 ? 7: lt->tm_wday);
4349 break;
4350 case 'w':
4351 len = 1; CHECK_SIZE();
4352 snprintf(curpos, buflen - total_done, "%d", lt->tm_wday);
4353 break;
4354 case 'x':
4355 strftime(subbuf, 64, "%x", lt);
4356 len = strlen(subbuf); CHECK_SIZE();
4357 strncpy2(curpos, subbuf, buflen - total_done);
4358 break;
4359 case 'X':
4360 strftime(subbuf, 64, "%X", lt);
4361 len = strlen(subbuf); CHECK_SIZE();
4362 strncpy2(curpos, subbuf, buflen - total_done);
4363 break;
4364 case 'y':
4365 total_done += 2; CHECK_SIZE();
4366 tmp = lt->tm_year%100;
4367 *curpos++ = '0'+(tmp / 10);
4368 *curpos++ = '0'+(tmp % 10);
4369 break;
4370 case 'Y':
4371 len = 4; CHECK_SIZE();
4372 snprintf(curpos, buflen - total_done, "%4d", lt->tm_year + 1900);
4373 break;
4374 case 'G':
4375 case 'g':
4376 case 'U':
4377 case 'V':
4378 case 'W':
4379 case 'z':
4380 case 'Z':
4381 case '+':
4382 /* let these complicated ones be done with the libc */
4383 snprintf(subfmt, 64, "%%%c", *format);
4384 strftime(subbuf, 64, subfmt, lt);
4385 len = strlen(subbuf); CHECK_SIZE();
4386 strncpy2(curpos, subbuf, buflen - total_done);
4387 break;
4388 case 'E':
4389 case 'O':
4390 /* let these complicated modifiers be done with the libc */
4391 snprintf(subfmt, 64, "%%%c%c", *format, *(format+1));
4392 strftime(subbuf, 64, subfmt, lt);
4393 len = strlen(subbuf); CHECK_SIZE();
4394 strncpy2(curpos, subbuf, buflen - total_done);
4395 format++;
4396 break;
4397 default:
4398 g_warning("format error (%c)", *format);
4399 *curpos = '\0';
4400 return total_done;
4401 }
4402 curpos += len;
4403 format++;
4404 } else {
4405 int len = 1; CHECK_SIZE();
4406 *curpos++ = *format++;
4407 }
4408 }
4409 *curpos = '\0';
4410 return total_done;
4411 }
4412
4413 #ifdef G_OS_WIN32
4414 #define WEXITSTATUS(x) (x)
4415 #endif
4416
cm_mutex_new(void)4417 GMutex *cm_mutex_new(void) {
4418 #if GLIB_CHECK_VERSION(2,32,0)
4419 GMutex *m = g_new0(GMutex, 1);
4420 g_mutex_init(m);
4421 return m;
4422 #else
4423 return g_mutex_new();
4424 #endif
4425 }
4426
cm_mutex_free(GMutex * mutex)4427 void cm_mutex_free(GMutex *mutex) {
4428 #if GLIB_CHECK_VERSION(2,32,0)
4429 g_mutex_clear(mutex);
4430 g_free(mutex);
4431 #else
4432 g_mutex_free(mutex);
4433 #endif
4434 }
4435
canonical_list_to_file(GSList * list)4436 static gchar *canonical_list_to_file(GSList *list)
4437 {
4438 GString *result = g_string_new(NULL);
4439 GSList *pathlist = g_slist_reverse(g_slist_copy(list));
4440 GSList *cur;
4441 gchar *str;
4442
4443 #ifndef G_OS_WIN32
4444 result = g_string_append(result, G_DIR_SEPARATOR_S);
4445 #else
4446 if (pathlist->data) {
4447 const gchar *root = (gchar *)pathlist->data;
4448 if (root[0] != '\0' && g_ascii_isalpha(root[0]) &&
4449 root[1] == ':') {
4450 /* drive - don't prepend dir separator */
4451 } else {
4452 result = g_string_append(result, G_DIR_SEPARATOR_S);
4453 }
4454 }
4455 #endif
4456
4457 for (cur = pathlist; cur; cur = cur->next) {
4458 result = g_string_append(result, (gchar *)cur->data);
4459 if (cur->next)
4460 result = g_string_append(result, G_DIR_SEPARATOR_S);
4461 }
4462 g_slist_free(pathlist);
4463
4464 str = result->str;
4465 g_string_free(result, FALSE);
4466
4467 return str;
4468 }
4469
cm_split_path(const gchar * filename,int depth)4470 static GSList *cm_split_path(const gchar *filename, int depth)
4471 {
4472 gchar **path_parts;
4473 GSList *canonical_parts = NULL;
4474 GStatBuf st;
4475 int i;
4476 #ifndef G_OS_WIN32
4477 gboolean follow_symlinks = TRUE;
4478 #endif
4479
4480 if (depth > 32) {
4481 #ifndef G_OS_WIN32
4482 errno = ELOOP;
4483 #else
4484 errno = EINVAL; /* can't happen, no symlink handling */
4485 #endif
4486 return NULL;
4487 }
4488
4489 if (!g_path_is_absolute(filename)) {
4490 errno =EINVAL;
4491 return NULL;
4492 }
4493
4494 path_parts = g_strsplit(filename, G_DIR_SEPARATOR_S, -1);
4495
4496 for (i = 0; path_parts[i] != NULL; i++) {
4497 if (!strcmp(path_parts[i], ""))
4498 continue;
4499 if (!strcmp(path_parts[i], "."))
4500 continue;
4501 else if (!strcmp(path_parts[i], "..")) {
4502 if (i == 0) {
4503 errno =ENOTDIR;
4504 return NULL;
4505 }
4506 else /* Remove the last inserted element */
4507 canonical_parts =
4508 g_slist_delete_link(canonical_parts,
4509 canonical_parts);
4510 } else {
4511 gchar *tmp_path;
4512
4513 canonical_parts = g_slist_prepend(canonical_parts,
4514 g_strdup(path_parts[i]));
4515
4516 tmp_path = canonical_list_to_file(canonical_parts);
4517
4518 if(g_stat(tmp_path, &st) < 0) {
4519 if (errno == ENOENT) {
4520 errno = 0;
4521 #ifndef G_OS_WIN32
4522 follow_symlinks = FALSE;
4523 #endif
4524 }
4525 if (errno != 0) {
4526 g_free(tmp_path);
4527 slist_free_strings_full(canonical_parts);
4528 g_strfreev(path_parts);
4529
4530 return NULL;
4531 }
4532 }
4533 #ifndef G_OS_WIN32
4534 if (follow_symlinks && g_file_test(tmp_path, G_FILE_TEST_IS_SYMLINK)) {
4535 GError *error = NULL;
4536 gchar *target = g_file_read_link(tmp_path, &error);
4537
4538 if (!g_path_is_absolute(target)) {
4539 /* remove the last inserted element */
4540 canonical_parts =
4541 g_slist_delete_link(canonical_parts,
4542 canonical_parts);
4543 /* add the target */
4544 canonical_parts = g_slist_prepend(canonical_parts,
4545 g_strdup(target));
4546 g_free(target);
4547
4548 /* and get the new target */
4549 target = canonical_list_to_file(canonical_parts);
4550 }
4551
4552 /* restart from absolute target */
4553 slist_free_strings_full(canonical_parts);
4554 canonical_parts = NULL;
4555 if (!error)
4556 canonical_parts = cm_split_path(target, depth + 1);
4557 else
4558 g_error_free(error);
4559 if (canonical_parts == NULL) {
4560 g_free(tmp_path);
4561 g_strfreev(path_parts);
4562 return NULL;
4563 }
4564 g_free(target);
4565 }
4566 #endif
4567 g_free(tmp_path);
4568 }
4569 }
4570 g_strfreev(path_parts);
4571 return canonical_parts;
4572 }
4573
4574 /*
4575 * Canonicalize a filename, resolving symlinks along the way.
4576 * Returns a negative errno in case of error.
4577 */
cm_canonicalize_filename(const gchar * filename,gchar ** canonical_name)4578 int cm_canonicalize_filename(const gchar *filename, gchar **canonical_name) {
4579 GSList *canonical_parts;
4580 gboolean is_absolute;
4581
4582 if (filename == NULL)
4583 return -EINVAL;
4584 if (canonical_name == NULL)
4585 return -EINVAL;
4586 *canonical_name = NULL;
4587
4588 is_absolute = g_path_is_absolute(filename);
4589 if (!is_absolute) {
4590 /* Always work on absolute filenames. */
4591 gchar *cur = g_get_current_dir();
4592 gchar *absolute_filename = g_strconcat(cur, G_DIR_SEPARATOR_S,
4593 filename, NULL);
4594
4595 canonical_parts = cm_split_path(absolute_filename, 0);
4596 g_free(absolute_filename);
4597 g_free(cur);
4598 } else
4599 canonical_parts = cm_split_path(filename, 0);
4600
4601 if (canonical_parts == NULL)
4602 return -errno;
4603
4604 *canonical_name = canonical_list_to_file(canonical_parts);
4605 slist_free_strings_full(canonical_parts);
4606 return 0;
4607 }
4608
4609 /* Returns a decoded base64 string, guaranteed to be null-terminated. */
g_base64_decode_zero(const gchar * text,gsize * out_len)4610 guchar *g_base64_decode_zero(const gchar *text, gsize *out_len)
4611 {
4612 gchar *tmp = g_base64_decode(text, out_len);
4613 gchar *out = g_strndup(tmp, *out_len);
4614
4615 g_free(tmp);
4616
4617 if (strlen(out) != *out_len) {
4618 g_warning ("strlen(out) %"G_GSIZE_FORMAT" != *out_len %"G_GSIZE_FORMAT, strlen(out), *out_len);
4619 }
4620
4621 return out;
4622 }
4623
4624 #if !GLIB_CHECK_VERSION(2, 30, 0)
4625 /**
4626 * g_utf8_substring:
4627 * @str: a UTF-8 encoded string
4628 * @start_pos: a character offset within @str
4629 * @end_pos: another character offset within @str
4630 *
4631 * Copies a substring out of a UTF-8 encoded string.
4632 * The substring will contain @end_pos - @start_pos
4633 * characters.
4634 *
4635 * Returns: a newly allocated copy of the requested
4636 * substring. Free with g_free() when no longer needed.
4637 *
4638 * Since: GLIB 2.30
4639 */
4640 gchar *
g_utf8_substring(const gchar * str,glong start_pos,glong end_pos)4641 g_utf8_substring (const gchar *str,
4642 glong start_pos,
4643 glong end_pos)
4644 {
4645 gchar *start, *end, *out;
4646
4647 start = g_utf8_offset_to_pointer (str, start_pos);
4648 end = g_utf8_offset_to_pointer (start, end_pos - start_pos);
4649
4650 out = g_malloc (end - start + 1);
4651 memcpy (out, start, end - start);
4652 out[end - start] = 0;
4653
4654 return out;
4655 }
4656 #endif
4657
4658 /* Attempts to read count bytes from a PRNG into memory area starting at buf.
4659 * It is up to the caller to make sure there is at least count bytes
4660 * available at buf. */
4661 gboolean
get_random_bytes(void * buf,size_t count)4662 get_random_bytes(void *buf, size_t count)
4663 {
4664 /* Open our prng source. */
4665 #if defined G_OS_WIN32
4666 HCRYPTPROV rnd;
4667
4668 if (!CryptAcquireContext(&rnd, NULL, NULL, PROV_RSA_FULL, 0) &&
4669 !CryptAcquireContext(&rnd, NULL, NULL, PROV_RSA_FULL, CRYPT_NEWKEYSET)) {
4670 debug_print("Could not acquire a CSP handle.\n");
4671 return FALSE;
4672 }
4673 #else
4674 int rnd;
4675 ssize_t ret;
4676
4677 rnd = open("/dev/urandom", O_RDONLY);
4678 if (rnd == -1) {
4679 FILE_OP_ERROR("/dev/urandom", "open");
4680 debug_print("Could not open /dev/urandom.\n");
4681 return FALSE;
4682 }
4683 #endif
4684
4685 /* Read data from the source into buf. */
4686 #if defined G_OS_WIN32
4687 if (!CryptGenRandom(rnd, count, buf)) {
4688 debug_print("Could not read %"G_GSIZE_FORMAT" random bytes.\n", count);
4689 CryptReleaseContext(rnd, 0);
4690 return FALSE;
4691 }
4692 #else
4693 ret = read(rnd, buf, count);
4694 if (ret != count) {
4695 FILE_OP_ERROR("/dev/urandom", "read");
4696 debug_print("Could not read enough data from /dev/urandom, read only %ld of %lu bytes.\n", ret, count);
4697 close(rnd);
4698 return FALSE;
4699 }
4700 #endif
4701
4702 /* Close the prng source. */
4703 #if defined G_OS_WIN32
4704 CryptReleaseContext(rnd, 0);
4705 #else
4706 close(rnd);
4707 #endif
4708
4709 return TRUE;
4710 }
4711
4712 /* returns FALSE if parsing failed, otherwise returns TRUE and sets *server, *port
4713 and eventually *fp from filename (if not NULL, they must be free'd by caller after
4714 user.
4715 filenames we expect: 'host.name.port.cert' or 'host.name.port.f:i:n:g:e:r:p:r:i:n:t.cert' */
get_serverportfp_from_filename(const gchar * str,gchar ** server,gchar ** port,gchar ** fp)4716 gboolean get_serverportfp_from_filename(const gchar *str, gchar **server, gchar **port, gchar **fp)
4717 {
4718 const gchar *pos, *dotport_pos = NULL, *dotcert_pos = NULL, *dotfp_pos = NULL;
4719
4720 g_return_val_if_fail(str != NULL, FALSE);
4721
4722 pos = str + strlen(str) - 1;
4723 while ((pos > str) && !dotport_pos) {
4724 if (*pos == '.') {
4725 if (!dotcert_pos) {
4726 /* match the .cert suffix */
4727 if (strcmp(pos, ".cert") == 0) {
4728 dotcert_pos = pos;
4729 }
4730 } else {
4731 if (!dotfp_pos) {
4732 /* match an eventual fingerprint */
4733 /* or the port number */
4734 if (strncmp(pos + 3, ":", 1) == 0) {
4735 dotfp_pos = pos;
4736 } else {
4737 dotport_pos = pos;
4738 }
4739 } else {
4740 /* match the port number */
4741 dotport_pos = pos;
4742 }
4743 }
4744 }
4745 pos--;
4746 }
4747 if (!dotport_pos || !dotcert_pos) {
4748 g_warning("could not parse filename %s", str);
4749 return FALSE;
4750 }
4751
4752 if (server != NULL)
4753 *server = g_strndup(str, dotport_pos - str);
4754 if (dotfp_pos) {
4755 if (port != NULL)
4756 *port = g_strndup(dotport_pos + 1, dotfp_pos - dotport_pos - 1);
4757 if (fp != NULL)
4758 *fp = g_strndup(dotfp_pos + 1, dotcert_pos - dotfp_pos - 1);
4759 } else {
4760 if (port != NULL)
4761 *port = g_strndup(dotport_pos + 1, dotcert_pos - dotport_pos - 1);
4762 if (fp != NULL)
4763 *fp = NULL;
4764 }
4765
4766 debug_print("filename='%s' => server='%s' port='%s' fp='%s'\n",
4767 str,
4768 (server ? *server : "(n/a)"),
4769 (port ? *port : "(n/a)"),
4770 (fp ? *fp : "(n/a)"));
4771
4772 if (!(server && *server) || !(port && *port))
4773 return FALSE;
4774 else
4775 return TRUE;
4776 }
4777
4778 #ifdef G_OS_WIN32
win32_debug_log_path(void)4779 gchar *win32_debug_log_path(void)
4780 {
4781 return g_strconcat(g_get_tmp_dir(), G_DIR_SEPARATOR_S,
4782 "claws-win32.log", NULL);
4783 }
4784 #endif
4785