1 /* Copyright (c) 2006, Nokia Corporation
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * * Neither the name of the Nokia Corporation nor the names of its
14 * contributors may be used to endorse or promote products derived from
15 * this software without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
18 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
19 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
20 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
21 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
22 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
23 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
24 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
25 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
26 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
27 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 #endif /*_GNU_SOURCE*/
35 #include <string.h> /* for strcasestr */
40 #include <glib/gi18n.h>
42 #include <modest-tny-platform-factory.h>
43 #include <modest-text-utils.h>
44 #include <modest-runtime.h>
49 #endif /*HAVE_CONFIG_H */
52 #define FORWARD_STRING _("mcen_ia_editor_original_message")
53 #define FROM_STRING _("mail_va_from")
54 #define SENT_STRING _("mcen_fi_message_properties_sent")
55 #define TO_STRING _("mail_va_to")
56 #define SUBJECT_STRING _("mail_va_subject")
57 #define EMPTY_STRING ""
60 * do the hyperlinkification only for texts < 50 Kb,
61 * as it's quite slow. Without this, e.g. mail with
62 * an uuencoded part (which is not recognized as attachment,
65 #define HYPERLINKIFY_MAX_LENGTH (1024*50)
68 * we need these regexps to find URLs in plain text e-mails
70 typedef struct _url_match_pattern_t url_match_pattern_t;
71 struct _url_match_pattern_t {
77 typedef struct _url_match_t url_match_t;
86 * we mark the ampersand with \007 when converting text->html
87 * because after text->html we do hyperlink detecting, which
88 * could be screwed up by the ampersand.
89 * ie. 1<3 ==> 1\007lt;3
91 #define MARK_AMP '\007'
92 #define MARK_AMP_STR "\007"
94 /* mark & separately, because they are parts of urls.
95 * ie. a&b => a\006amp;b, but a>b => a\007gt;b
97 * we need to handle '&' separately, because it can be part of URIs
98 * (as in href="http://foo.bar?a=1&b=1"), so inside those URIs
99 * we need to re-replace \006amp; with '&' again, while outside uri's
102 * yes, it's messy, but a consequence of doing text->html first, then hyperlinkify
104 #define MARK_AMP_URI '\006'
105 #define MARK_AMP_URI_STR "\006"
108 /* note: match MARK_AMP_URI_STR as well, because after txt->html, a '&' will look like $(MARK_AMP_URI_STR)"amp;" */
109 #define MAIL_VIEWER_URL_MATCH_PATTERNS { \
110 { "(feed:|)(file|rtsp|http|ftp|https|mms|mmsh|webcal|feed|rtsp|rdp|lastfm|sip)://[-a-z0-9_$.+!*(),;:@%=\?/~#&" MARK_AMP_URI_STR \
111 "]+[-a-z0-9_$%&" MARK_AMP_URI_STR "=?/~#]", \
113 { "www\\.[-a-z0-9_$.+!*(),;:@%=?/~#" MARK_AMP_URI_STR "]+[-a-z0-9_$%" MARK_AMP_URI_STR "=?/~#]",\
115 { "ftp\\.[-a-z0-9_$.+!*(),;:@%=?/~#" MARK_AMP_URI_STR "]+[-a-z0-9_$%" MARK_AMP_URI_STR "=?/~#]",\
117 { "(jabberto|voipto|sipto|sip|chatto|skype|xmpp):[-_a-z@0-9.+]+", \
119 { "mailto:[-_a-z0-9.\\+]+@[-_a-z0-9.]+", \
121 { "[-_a-z0-9.\\+]+@[-_a-z0-9.]+",\
125 const gchar account_title_forbidden_chars[] = {
126 '\\', '/', ':', '*', '?', '\'', '<', '>', '|', '^'
128 const gchar folder_name_forbidden_chars[] = {
129 '<', '>', ':', '\'', '/', '\\', '|', '?', '*', '^', '%', '$', '#', '&'
131 const gchar user_name_forbidden_chars[] = {
134 const guint ACCOUNT_TITLE_FORBIDDEN_CHARS_LENGTH = G_N_ELEMENTS (account_title_forbidden_chars);
135 const guint FOLDER_NAME_FORBIDDEN_CHARS_LENGTH = G_N_ELEMENTS (folder_name_forbidden_chars);
136 const guint USER_NAME_FORBIDDEN_CHARS_LENGTH = G_N_ELEMENTS (user_name_forbidden_chars);
139 static gchar* cite (const time_t sent_date, const gchar *from);
140 static void hyperlinkify_plain_text (GString *txt, gint offset);
141 static gint cmp_offsets_reverse (const url_match_t *match1, const url_match_t *match2);
142 static GSList* get_url_matches (GString *txt, gint offset);
144 static GString* get_next_line (const char *b, const gsize blen, const gchar * iter);
145 static int get_indent_level (const char *l);
146 static void unquote_line (GString * l, const gchar *quote_symbol);
147 static void append_quoted (GString * buf, const gchar *quote_symbol,
148 const int indent, const GString * str,
150 static int get_breakpoint_utf8 (const gchar * s, const gint indent, const gint limit);
151 static int get_breakpoint_ascii (const gchar * s, const gint indent, const gint limit);
152 static int get_breakpoint (const gchar * s, const gint indent, const gint limit);
154 static gchar* modest_text_utils_quote_plain_text (const gchar *text,
156 const gchar *signature,
160 static gchar* modest_text_utils_quote_html (const gchar *text,
162 const gchar *signature,
165 static gchar* get_email_from_address (const gchar *address);
166 static void remove_extra_spaces (gchar *string);
170 /* ******************************************************************* */
171 /* ************************* PUBLIC FUNCTIONS ************************ */
172 /* ******************************************************************* */
175 modest_text_utils_quote (const gchar *text,
176 const gchar *content_type,
177 const gchar *signature,
179 const time_t sent_date,
183 gchar *retval, *cited;
185 g_return_val_if_fail (text, NULL);
186 g_return_val_if_fail (content_type, NULL);
188 cited = cite (sent_date, from);
190 if (content_type && strcmp (content_type, "text/html") == 0)
191 /* TODO: extract the <body> of the HTML and pass it to
193 retval = modest_text_utils_quote_html (text, cited, signature, attachments, limit);
195 retval = modest_text_utils_quote_plain_text (text, cited, signature, attachments, limit);
204 modest_text_utils_cite (const gchar *text,
205 const gchar *content_type,
206 const gchar *signature,
213 g_return_val_if_fail (text, NULL);
214 g_return_val_if_fail (content_type, NULL);
217 tmp_sig = g_strdup (text);
219 tmp_sig = g_strconcat (text, "\n", MODEST_TEXT_UTILS_SIGNATURE_MARKER, "\n", signature, NULL);
222 if (strcmp (content_type, "text/html") == 0) {
223 retval = modest_text_utils_convert_to_html_body (tmp_sig, -1, TRUE);
233 forward_cite (const gchar *from,
236 const gchar *subject)
238 g_return_val_if_fail (sent, NULL);
240 return g_strdup_printf ("%s\n%s %s\n%s %s\n%s %s\n%s %s\n",
242 FROM_STRING, (from)?from:"",
244 TO_STRING, (to)?to:"",
245 SUBJECT_STRING, (subject)?subject:"");
249 modest_text_utils_inline (const gchar *text,
250 const gchar *content_type,
251 const gchar *signature,
255 const gchar *subject)
261 g_return_val_if_fail (text, NULL);
262 g_return_val_if_fail (content_type, NULL);
264 modest_text_utils_strftime (sent_str, 100, "%c", sent_date);
266 cited = forward_cite (from, sent_str, to, subject);
268 if (content_type && strcmp (content_type, "text/html") == 0)
269 retval = modest_text_utils_quote_html (text, cited, signature, NULL, 80);
271 retval = modest_text_utils_quote_plain_text (text, cited, signature, NULL, 80);
277 /* just to prevent warnings:
278 * warning: `%x' yields only last 2 digits of year in some locales
281 modest_text_utils_strftime(char *s, gsize max, const char *fmt, time_t timet)
285 /* To prevent possible problems in strftime that could leave
286 garbage in the s variable */
292 /* does not work on old maemo glib:
293 * g_date_set_time_t (&date, timet);
295 localtime_r (&timet, &tm);
296 return strftime(s, max, fmt, &tm);
300 modest_text_utils_derived_subject (const gchar *subject, gboolean is_reply)
302 gchar *tmp, *subject_dup, *retval, *prefix;
303 const gchar *untranslated_prefix;
304 gint prefix_len, untranslated_prefix_len;
305 gboolean untranslated_found = FALSE;
307 if (!subject || subject[0] == '\0')
308 subject = _("mail_va_no_subject");
310 subject_dup = g_strdup (subject);
311 tmp = g_strchug (subject_dup);
313 prefix = (is_reply) ? _("mail_va_re") : _("mail_va_fw");
314 prefix = g_strconcat (prefix, ":", NULL);
315 prefix_len = g_utf8_strlen (prefix, -1);
317 untranslated_prefix = (is_reply) ? "Re:" : "Fw:";
318 untranslated_prefix_len = 3;
320 /* We do not want things like "Re: Re: Re:" or "Fw: Fw:" so
321 delete the previous ones */
323 if (g_str_has_prefix (tmp, prefix)) {
325 tmp = g_strchug (tmp);
326 } else if (g_str_has_prefix (tmp, untranslated_prefix)) {
327 tmp += untranslated_prefix_len;
328 tmp = g_strchug (tmp);
329 untranslated_found = TRUE;
331 gchar *prefix_down, *tmp_down;
333 /* We need this to properly check the cases of
334 some clients adding FW: instead of Fw: for
336 prefix_down = g_utf8_strdown (prefix, -1);
337 tmp_down = g_utf8_strdown (tmp, -1);
338 if (g_str_has_prefix (tmp_down, prefix_down)) {
340 tmp = g_strchug (tmp);
341 g_free (prefix_down);
344 g_free (prefix_down);
351 retval = g_strdup_printf ("%s %s", (untranslated_found) ? untranslated_prefix : prefix, tmp);
352 g_free (subject_dup);
359 /* Performs a case-insensitive strstr for ASCII strings */
361 ascii_stristr(const gchar *haystack, const gchar *needle)
366 const gchar *max_pos;
368 if (haystack == NULL || needle == NULL) {
369 return haystack; /* as in strstr */
372 needle_len = strlen(needle);
374 if (needle_len == 0) {
375 return haystack; /* as in strstr */
378 haystack_len = strlen(haystack);
379 max_pos = haystack + haystack_len - needle_len;
381 for (pos = haystack; pos <= max_pos; pos++) {
382 if (g_ascii_strncasecmp (pos, needle, needle_len) == 0) {
392 modest_text_utils_remove_address (const gchar *address_list, const gchar *address)
394 gchar *dup, *token, *ptr = NULL, *result;
395 GString *filtered_emails;
396 gchar *email_address;
398 g_return_val_if_fail (address_list, NULL);
401 return g_strdup (address_list);
403 email_address = get_email_from_address (address);
405 /* search for substring */
406 if (!ascii_stristr ((const char *) address_list, (const char *) email_address)) {
407 g_free (email_address);
408 return g_strdup (address_list);
411 dup = g_strdup (address_list);
412 filtered_emails = g_string_new (NULL);
414 token = strtok_r (dup, ",", &ptr);
416 while (token != NULL) {
417 /* Add to list if not found */
418 if (!ascii_stristr ((const char *) token, (const char *) email_address)) {
419 if (filtered_emails->len == 0)
420 g_string_append_printf (filtered_emails, "%s", g_strstrip (token));
422 g_string_append_printf (filtered_emails, ",%s", g_strstrip (token));
424 token = strtok_r (NULL, ",", &ptr);
426 result = filtered_emails->str;
429 g_free (email_address);
431 g_string_free (filtered_emails, FALSE);
438 modest_text_utils_remove_duplicate_addresses (const gchar *address_list)
440 GSList *addresses, *cursor;
442 gchar *new_list = NULL;
444 g_return_val_if_fail (address_list, NULL);
446 table = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
447 addresses = modest_text_utils_split_addresses_list (address_list);
451 const gchar* address = (const gchar*)cursor->data;
453 /* We need only the email to just compare it and not
454 the full address which would make "a <a@a.com>"
455 different from "a@a.com" */
456 const gchar *email = get_email_from_address (address);
458 /* ignore the address if already seen */
459 if (g_hash_table_lookup (table, email) == 0) {
462 /* Include the full address and not only the
463 email in the returned list */
465 tmp = g_strdup (address);
467 tmp = g_strjoin (",", new_list, address, NULL);
472 g_hash_table_insert (table, (gchar*)email, GINT_TO_POINTER(1));
474 cursor = g_slist_next (cursor);
477 g_hash_table_unref (table);
478 g_slist_foreach (addresses, (GFunc)g_free, NULL);
479 g_slist_free (addresses);
481 if (new_list == NULL)
482 new_list = g_strdup ("");
489 modest_text_utils_convert_buffer_to_html_start (GString *html, const gchar *data, gssize n)
492 gboolean space_seen = FALSE;
493 guint break_dist = 0; /* distance since last break point */
498 /* replace with special html chars where needed*/
499 for (i = 0; i != n; ++i) {
500 guchar kar = data[i];
502 if (space_seen && kar != ' ') {
503 g_string_append (html, " ");
507 /* we artificially insert a breakpoint (newline)
508 * after 256, to make sure our lines are not so long
509 * they will DOS the regexping later
510 * Also, check that kar is ASCII to make sure that we
511 * don't break a UTF8 char in two
513 if (++break_dist >= 256 && kar < 127) {
514 g_string_append_c (html, '\n');
522 /* this is a temp place holder for '&'; we can only
523 * set the real '&' after hyperlink translation, otherwise
524 * we might screw that up */
525 break; /* ignore embedded \0s and MARK_AMP */
526 case '<' : g_string_append (html, MARK_AMP_STR "lt;"); break;
527 case '>' : g_string_append (html, MARK_AMP_STR "gt;"); break;
528 case '&' : g_string_append (html, MARK_AMP_URI_STR "amp;"); break; /* special case */
529 case '"' : g_string_append (html, MARK_AMP_STR "quot;"); break;
531 /* don't convert ' --> wpeditor will try to re-convert it... */
532 //case '\'' : g_string_append (html, "'"); break;
533 case '\n' : g_string_append (html, "<br>\n");break_dist= 0; break;
534 case '\t' : g_string_append (html, MARK_AMP_STR "nbsp;" MARK_AMP_STR "nbsp;" MARK_AMP_STR "nbsp; ");
535 break_dist=0; break; /* note the space at the end*/
538 if (space_seen) { /* second space in a row */
539 g_string_append (html, " ");
544 g_string_append_c (html, kar);
551 modest_text_utils_convert_buffer_to_html_finish (GString *html)
554 /* replace all our MARK_AMPs with real ones */
555 for (i = 0; i != html->len; ++i)
556 if ((html->str)[i] == MARK_AMP || (html->str)[i] == MARK_AMP_URI)
557 (html->str)[i] = '&';
562 modest_text_utils_convert_to_html (const gchar *data)
567 g_return_val_if_fail (data, NULL);
573 html = g_string_sized_new (1.5 * len); /* just a guess... */
575 g_string_append_printf (html,
577 "<meta http-equiv=\"content-type\" content=\"text/html; charset=utf8\">"
581 modest_text_utils_convert_buffer_to_html_start (html, data, -1);
583 g_string_append (html, "</body></html>");
585 if (len <= HYPERLINKIFY_MAX_LENGTH)
586 hyperlinkify_plain_text (html, 0);
588 modest_text_utils_convert_buffer_to_html_finish (html);
590 return g_string_free (html, FALSE);
594 modest_text_utils_convert_to_html_body (const gchar *data, gssize n, gboolean hyperlinkify)
598 g_return_val_if_fail (data, NULL);
605 html = g_string_sized_new (1.5 * n); /* just a guess... */
607 modest_text_utils_convert_buffer_to_html_start (html, data, n);
609 if (hyperlinkify && (n < HYPERLINKIFY_MAX_LENGTH))
610 hyperlinkify_plain_text (html, 0);
612 modest_text_utils_convert_buffer_to_html_finish (html);
614 return g_string_free (html, FALSE);
618 modest_text_utils_get_addresses_indexes (const gchar *addresses, GSList **start_indexes, GSList **end_indexes)
626 if (strlen (addresses) == 0)
629 str = g_string_new ("");
630 start = (gchar*) addresses;
631 cur = (gchar*) addresses;
633 for (cur = start; *cur != '\0'; cur = g_utf8_next_char (cur)) {
634 if (*cur == ',' || *cur == ';') {
635 gint *start_index, *end_index;
636 gchar *next_char = g_utf8_next_char (cur);
638 if (!g_utf8_strchr (start, (cur - start + 1), g_utf8_get_char ("@")) &&
639 next_char && *next_char != '\n')
642 start_index = g_new0 (gint, 1);
643 end_index = g_new0 (gint, 1);
644 *start_index = g_utf8_pointer_to_offset (addresses, start);
645 *end_index = g_utf8_pointer_to_offset (addresses, cur);;
646 *start_indexes = g_slist_prepend (*start_indexes, start_index);
647 *end_indexes = g_slist_prepend (*end_indexes, end_index);
648 start = g_utf8_next_char (cur);
653 gint *start_index, *end_index;
654 start_index = g_new0 (gint, 1);
655 end_index = g_new0 (gint, 1);
656 *start_index = g_utf8_pointer_to_offset (addresses, start);
657 *end_index = g_utf8_pointer_to_offset (addresses, cur);;
658 *start_indexes = g_slist_prepend (*start_indexes, start_index);
659 *end_indexes = g_slist_prepend (*end_indexes, end_index);
663 *start_indexes = g_slist_reverse (*start_indexes);
665 *end_indexes = g_slist_reverse (*end_indexes);
670 modest_text_utils_split_addresses_list (const gchar *addresses)
673 const gchar *my_addrs = addresses;
676 gboolean after_at = FALSE;
678 g_return_val_if_fail (addresses, NULL);
680 /* skip any space, ',', ';' '\n' at the start */
681 while (my_addrs && (my_addrs[0] == ' ' || my_addrs[0] == ',' ||
682 my_addrs[0] == ';' || my_addrs[0] == '\n'))
685 /* are we at the end of addresses list? */
689 /* nope, we are at the start of some address
690 * now, let's find the end of the address */
692 while (end[0] && end[0] != ';' && !(after_at && end[0] == ',')) {
693 if (end[0] == '\"') {
694 while (end[0] && end[0] != '\"')
700 if ((end[0] && end[0] == '>')&&(end[1] && end[1] == ',')) {
707 /* we got the address; copy it and remove trailing whitespace */
708 addr = g_strndup (my_addrs, end - my_addrs);
711 remove_extra_spaces (addr);
713 head = g_slist_append (NULL, addr);
714 head->next = modest_text_utils_split_addresses_list (end); /* recurse */
720 modest_text_utils_join_addresses (const gchar *from,
726 gboolean add_separator = FALSE;
728 buffer = g_string_new ("");
730 if (from && strlen (from)) {
731 buffer = g_string_append (buffer, from);
732 add_separator = TRUE;
734 if (to && strlen (to)) {
736 buffer = g_string_append (buffer, "; ");
738 add_separator = TRUE;
740 buffer = g_string_append (buffer, to);
742 if (cc && strlen (cc)) {
744 buffer = g_string_append (buffer, "; ");
746 add_separator = TRUE;
748 buffer = g_string_append (buffer, cc);
750 if (bcc && strlen (bcc)) {
752 buffer = g_string_append (buffer, "; ");
754 add_separator = TRUE;
756 buffer = g_string_append (buffer, bcc);
759 return g_string_free (buffer, FALSE);
763 modest_text_utils_address_range_at_position (const gchar *recipients_list,
768 gchar *current = NULL;
769 gint range_start = 0;
772 gboolean is_quoted = FALSE;
774 g_return_if_fail (recipients_list);
775 g_return_if_fail (position < g_utf8_strlen(recipients_list, -1));
778 for (current = (gchar *) recipients_list; *current != '\0';
779 current = g_utf8_find_next_char (current, NULL)) {
780 gunichar c = g_utf8_get_char (current);
782 if ((c == ',') && (!is_quoted)) {
783 if (index < position) {
784 range_start = index + 1;
788 } else if (c == '\"') {
789 is_quoted = !is_quoted;
790 } else if ((c == ' ') &&(range_start == index)) {
798 *start = range_start;
804 modest_text_utils_address_with_standard_length (const gchar *recipients_list)
808 GString *buffer = g_string_new ("");
810 splitted = g_strsplit (recipients_list, "\n", 0);
814 if (current != splitted)
815 buffer = g_string_append_c (buffer, '\n');
816 line = g_strndup (*splitted, 1000);
817 buffer = g_string_append (buffer, line);
822 g_strfreev (splitted);
824 return g_string_free (buffer, FALSE);
828 /* ******************************************************************* */
829 /* ************************* UTILIY FUNCTIONS ************************ */
830 /* ******************************************************************* */
833 get_next_line (const gchar * b, const gsize blen, const gchar * iter)
839 return g_string_new("");
847 gs = g_string_new_len (i0, iter - i0);
851 get_indent_level (const char *l)
868 /* if we hit the signature marker "-- ", we return -(indent + 1). This
869 * stops reformatting.
871 if (strcmp (l, MODEST_TEXT_UTILS_SIGNATURE_MARKER) == 0) {
879 unquote_line (GString * l, const gchar *quote_symbol)
885 quote_len = strlen (quote_symbol);
887 if (g_str_has_prefix (p, quote_symbol)) {
888 if (p[quote_len] == ' ') {
896 g_string_erase (l, 0, p - l->str);
900 append_quoted (GString * buf, const gchar *quote_symbol,
901 int indent, const GString * str,
907 indent = indent < 0 ? abs (indent) - 1 : indent;
908 quote_concat = g_strconcat (quote_symbol, " ", NULL);
909 for (i = 0; i <= indent; i++) {
910 g_string_append (buf, quote_concat);
912 g_free (quote_concat);
914 g_string_append_len (buf, str->str, cutpoint);
916 g_string_append (buf, str->str);
918 g_string_append (buf, "\n");
922 get_breakpoint_utf8 (const gchar * s, gint indent, const gint limit)
925 const gchar *pos, *last;
928 indent = indent < 0 ? abs (indent) - 1 : indent;
932 uni = g_utf8_to_ucs4_fast (s, -1, NULL);
934 if ((index + 2 * indent > limit) && last) {
938 if (g_unichar_isspace (uni[index])) {
941 pos = g_utf8_next_char (pos);
949 get_breakpoint_ascii (const gchar * s, const gint indent, const gint limit)
954 if (last + 2 * indent < limit)
957 for (i = strlen (s); i > 0; i--) {
959 if (i + 2 * indent <= limit) {
970 get_breakpoint (const gchar * s, const gint indent, const gint limit)
973 if (g_utf8_validate (s, -1, NULL)) {
974 return get_breakpoint_utf8 (s, indent, limit);
975 } else { /* assume ASCII */
976 //g_warning("invalid UTF-8 in msg");
977 return get_breakpoint_ascii (s, indent, limit);
982 cite (const time_t sent_date, const gchar *from)
984 return g_strdup (_("mcen_ia_editor_original_message"));
988 quoted_attachments (GList *attachments)
991 GString *result = g_string_new ("");
992 for (node = attachments; node != NULL; node = g_list_next (node)) {
993 gchar *filename = (gchar *) node->data;
994 g_string_append_printf ( result, "%s %s\n", _("mcen_ia_editor_attach_filename"), filename);
997 return g_string_free (result, FALSE);
1002 modest_text_utils_quote_body (GString *output, const gchar *text,
1003 const gchar *quote_symbol,
1009 gint indent, breakpoint, rem_indent = 0;
1010 GString *l, *remaining;
1014 remaining = g_string_new ("");
1016 l = get_next_line (text, len, iter);
1017 iter = iter + l->len + 1;
1018 indent = get_indent_level (l->str);
1019 unquote_line (l, quote_symbol);
1021 if (remaining->len) {
1022 if (l->len && indent == rem_indent) {
1023 g_string_prepend (l, " ");
1024 g_string_prepend (l, remaining->str);
1027 gunichar remaining_first;
1029 get_breakpoint (remaining->str,
1032 append_quoted (output, quote_symbol, rem_indent,
1033 remaining, breakpoint);
1034 g_string_erase (remaining, 0,
1036 remaining_first = g_utf8_get_char_validated (remaining->str, remaining->len);
1037 if (remaining_first != ((gunichar) -1)) {
1038 if (g_unichar_isspace (remaining_first)) {
1039 g_string_erase (remaining, 0, g_utf8_next_char (remaining->str) - remaining->str);
1042 } while (remaining->len);
1045 g_string_free (remaining, TRUE);
1046 breakpoint = get_breakpoint (l->str, indent, limit);
1047 remaining = g_string_new (l->str + breakpoint);
1048 if (remaining->str[0] == ' ') {
1049 g_string_erase (remaining, 0, 1);
1051 rem_indent = indent;
1052 append_quoted (output, quote_symbol, indent, l, breakpoint);
1053 g_string_free (l, TRUE);
1054 } while ((iter < text + len) || (remaining->str[0]));
1060 modest_text_utils_quote_plain_text (const gchar *text,
1062 const gchar *signature,
1067 gchar *attachments_string = NULL;
1069 q = g_string_new ("");
1071 if (signature != NULL) {
1072 g_string_append_printf (q, "\n%s\n", MODEST_TEXT_UTILS_SIGNATURE_MARKER);
1073 q = g_string_append (q, signature);
1076 q = g_string_append (q, "\n");
1077 q = g_string_append (q, cite);
1078 q = g_string_append_c (q, '\n');
1080 q = modest_text_utils_quote_body (q, text, ">", limit);
1082 attachments_string = quoted_attachments (attachments);
1083 q = g_string_append (q, attachments_string);
1084 g_free (attachments_string);
1086 return g_string_free (q, FALSE);
1090 quote_html_add_to_gstring (GString *string,
1093 if (text && strcmp (text, "")) {
1094 gchar *html_text = modest_text_utils_convert_to_html_body (text, -1, TRUE);
1095 g_string_append_printf (string, "%s<br/>", html_text);
1101 modest_text_utils_quote_html (const gchar *text,
1103 const gchar *signature,
1107 GString *result_string;
1111 "<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">\n" \
1115 if (text || cite || signature) {
1116 GString *quoted_text;
1117 g_string_append (result_string, "<pre>\n");
1119 quote_html_add_to_gstring (result_string, MODEST_TEXT_UTILS_SIGNATURE_MARKER);
1120 quote_html_add_to_gstring (result_string, signature);
1122 quote_html_add_to_gstring (result_string, cite);
1123 quoted_text = g_string_new ("");
1124 quoted_text = modest_text_utils_quote_body (quoted_text, (text) ? text : "", ">", limit);
1125 quote_html_add_to_gstring (result_string, quoted_text->str);
1126 g_string_free (quoted_text, TRUE);
1128 gchar *attachments_string = quoted_attachments (attachments);
1129 quote_html_add_to_gstring (result_string, attachments_string);
1130 g_free (attachments_string);
1132 g_string_append (result_string, "</pre>");
1134 g_string_append (result_string, "</body>");
1135 g_string_append (result_string, "</html>");
1137 return g_string_free (result_string, FALSE);
1141 cmp_offsets_reverse (const url_match_t *match1, const url_match_t *match2)
1143 return match2->offset - match1->offset;
1146 static gint url_matches_block = 0;
1147 static url_match_pattern_t patterns[] = MAIL_VIEWER_URL_MATCH_PATTERNS;
1148 static GMutex *url_patterns_mutex = NULL;
1155 const size_t pattern_num = sizeof(patterns)/sizeof(url_match_pattern_t);
1156 for (i = 0; i != pattern_num; ++i) {
1157 patterns[i].preg = g_slice_new0 (regex_t);
1159 /* this should not happen */
1160 if (regcomp (patterns[i].preg, patterns[i].regex,
1161 REG_ICASE|REG_EXTENDED|REG_NEWLINE) != 0) {
1162 g_warning ("%s: error in regexp:\n%s\n", __FUNCTION__, patterns[i].regex);
1173 const size_t pattern_num = sizeof(patterns)/sizeof(url_match_pattern_t);
1174 for (i = 0; i != pattern_num; ++i) {
1175 regfree (patterns[i].preg);
1176 g_slice_free (regex_t, patterns[i].preg);
1177 } /* don't free patterns itself -- it's static */
1181 modest_text_utils_hyperlinkify_begin (void)
1184 if (url_patterns_mutex == NULL) {
1185 url_patterns_mutex = g_mutex_new ();
1187 g_mutex_lock (url_patterns_mutex);
1188 if (url_matches_block == 0)
1189 compile_patterns ();
1190 url_matches_block ++;
1191 g_mutex_unlock (url_patterns_mutex);
1195 modest_text_utils_hyperlinkify_end (void)
1197 g_mutex_lock (url_patterns_mutex);
1198 url_matches_block--;
1199 if (url_matches_block <= 0)
1201 g_mutex_unlock (url_patterns_mutex);
1206 get_url_matches (GString *txt, gint offset)
1209 guint rv, i, tmp_offset = 0;
1210 GSList *match_list = NULL;
1212 const size_t pattern_num = sizeof(patterns)/sizeof(url_match_pattern_t);
1214 /* initalize the regexps */
1215 modest_text_utils_hyperlinkify_begin ();
1217 /* find all the matches */
1218 for (i = 0; i != pattern_num; ++i) {
1219 tmp_offset = offset;
1222 gboolean is_submatch;
1225 if ((rv = regexec (patterns[i].preg, txt->str + tmp_offset, 1, &rm, 0)) != 0) {
1226 g_return_val_if_fail (rv == REG_NOMATCH, NULL); /* this should not happen */
1227 break; /* try next regexp */
1232 is_submatch = FALSE;
1233 /* check old matches to see if this has already been matched */
1234 cursor = match_list;
1235 while (cursor && !is_submatch) {
1236 const url_match_t *old_match =
1237 (const url_match_t *) cursor->data;
1238 guint new_offset = tmp_offset + rm.rm_so;
1239 is_submatch = (new_offset > old_match->offset &&
1240 new_offset < old_match->offset + old_match->len);
1241 cursor = g_slist_next (cursor);
1245 /* make a list of our matches (<offset, len, prefix> tupels)*/
1246 match = g_slice_new (url_match_t);
1247 match->offset = tmp_offset + rm.rm_so;
1248 match->len = rm.rm_eo - rm.rm_so;
1249 match->prefix = patterns[i].prefix;
1250 match_list = g_slist_prepend (match_list, match);
1252 tmp_offset += rm.rm_eo;
1256 modest_text_utils_hyperlinkify_end ();
1258 /* now sort the list, so the matches are in reverse order of occurence.
1259 * that way, we can do the replacements starting from the end, so we don't need
1260 * to recalculate the offsets
1262 match_list = g_slist_sort (match_list,
1263 (GCompareFunc)cmp_offsets_reverse);
1269 /* replace all occurences of needle in haystack with repl*/
1271 replace_string (const gchar *haystack, const gchar *needle, gchar repl)
1273 gchar *str, *cursor;
1275 if (!haystack || !needle || strlen(needle) == 0)
1276 return haystack ? g_strdup(haystack) : NULL;
1278 str = g_strdup (haystack);
1280 for (cursor = str; cursor && *cursor; ++cursor) {
1281 if (g_str_has_prefix (cursor, needle)) {
1283 memmove (cursor + 1,
1284 cursor + strlen (needle),
1285 strlen (cursor + strlen (needle)) + 1);
1293 hyperlinkify_plain_text (GString *txt, gint offset)
1296 GSList *match_list = get_url_matches (txt, offset);
1298 /* we will work backwards, so the offsets stay valid */
1299 for (cursor = match_list; cursor; cursor = cursor->next) {
1301 url_match_t *match = (url_match_t*) cursor->data;
1302 gchar *url = g_strndup (txt->str + match->offset, match->len);
1303 gchar *repl = NULL; /* replacement */
1305 /* the string still contains $(MARK_AMP_URI_STR)"amp;" for each
1306 * '&' in the original, because of the text->html conversion.
1307 * in the href-URL (and only there), we must convert that back to
1310 gchar *href_url = replace_string (url, MARK_AMP_URI_STR "amp;", '&');
1312 /* the prefix is NULL: use the one that is already there */
1313 repl = g_strdup_printf ("<a href=\"%s%s\">%s</a>",
1314 match->prefix ? match->prefix : EMPTY_STRING,
1317 /* replace the old thing with our hyperlink
1318 * replacement thing */
1319 g_string_erase (txt, match->offset, match->len);
1320 g_string_insert (txt, match->offset, repl);
1326 g_slice_free (url_match_t, match);
1329 g_slist_free (match_list);
1333 modest_text_utils_hyperlinkify (GString *string_buffer)
1338 after_body = strstr (string_buffer->str, "<body>");
1339 if (after_body != NULL)
1340 offset = after_body - string_buffer->str;
1341 hyperlinkify_plain_text (string_buffer, offset);
1345 /* for optimization reasons, we change the string in-place */
1347 modest_text_utils_get_display_address (gchar *address)
1351 g_return_if_fail (address);
1356 /* should not be needed, and otherwise, we probably won't screw up the address
1357 * more than it already is :)
1358 * g_return_val_if_fail (g_utf8_validate (address, -1, NULL), NULL);
1361 /* remove leading whitespace */
1362 if (address[0] == ' ')
1363 g_strchug (address);
1365 for (i = 0; address[i]; ++i) {
1366 if (address[i] == '<') {
1367 if (G_UNLIKELY(i == 0)) {
1368 break; /* there's nothing else, leave it */
1370 address[i] = '\0'; /* terminate the string here */
1376 g_strchomp (address);
1381 modest_text_utils_get_display_addresses (const gchar *recipients)
1384 GSList *recipient_list;
1387 recipient_list = modest_text_utils_split_addresses_list (recipients);
1388 if (recipient_list) {
1389 GString *add_string = g_string_sized_new (strlen (recipients));
1390 GSList *iter = recipient_list;
1391 gboolean first = TRUE;
1394 /* Strings are changed in place */
1395 modest_text_utils_get_display_address ((gchar *) iter->data);
1396 if (G_UNLIKELY (first)) {
1397 g_string_append_printf (add_string, "%s", (gchar *) iter->data);
1400 g_string_append_printf (add_string, ", %s", (gchar *) iter->data);
1402 iter = g_slist_next (iter);
1404 g_slist_foreach (recipient_list, (GFunc) g_free, NULL);
1405 g_slist_free (recipient_list);
1406 addresses = g_string_free (add_string, FALSE);
1414 modest_text_utils_get_email_address (const gchar *full_address)
1416 const gchar *left, *right;
1418 g_return_val_if_fail (full_address, NULL);
1423 g_return_val_if_fail (g_utf8_validate (full_address, -1, NULL), NULL);
1425 left = g_strrstr_len (full_address, strlen(full_address), "<");
1427 return g_strdup (full_address);
1429 right = g_strstr_len (left, strlen(left), ">");
1431 return g_strdup (full_address);
1433 return g_strndup (left + 1, right - left - 1);
1437 modest_text_utils_get_subject_prefix_len (const gchar *sub)
1439 gint prefix_len = 0;
1441 g_return_val_if_fail (sub, 0);
1446 /* optimization: "Re", "RE", "re","Fwd", "FWD", "fwd","FW","Fw", "fw" */
1447 if (sub[0] != 'R' && sub[0] != 'F' && sub[0] != 'r' && sub[0] != 'f')
1449 else if (sub[0] && sub[1] != 'e' && sub[1] != 'E' && sub[1] != 'w' && sub[1] != 'W')
1456 /* skip over a [...] block */
1457 if (sub[prefix_len] == '[') {
1458 int c = prefix_len + 1;
1459 while (sub[c] && sub[c] != ']')
1462 return 0; /* no end to the ']' found */
1467 /* did we find the ':' ? */
1468 if (sub[prefix_len] == ':') {
1470 if (sub[prefix_len] == ' ')
1472 prefix_len += modest_text_utils_get_subject_prefix_len (sub + prefix_len);
1473 /* g_warning ("['%s','%s']", sub, (char*) sub + prefix_len); */
1481 modest_text_utils_utf8_strcmp (const gchar* s1, const gchar *s2, gboolean insensitive)
1484 /* work even when s1 and/or s2 == NULL */
1485 if (G_UNLIKELY(s1 == s2))
1487 if (G_UNLIKELY(!s1))
1489 if (G_UNLIKELY(!s2))
1492 /* if it's not case sensitive */
1495 /* optimization: shortcut if first char is ascii */
1496 if (((s1[0] & 0x80)== 0) && ((s2[0] & 0x80) == 0) &&
1498 return s1[0] - s2[0];
1500 return g_utf8_collate (s1, s2);
1506 /* optimization: shortcut if first char is ascii */
1507 if (((s1[0] & 0x80) == 0) && ((s2[0] & 0x80) == 0) &&
1508 (tolower(s1[0]) != tolower (s2[0])))
1509 return tolower(s1[0]) - tolower(s2[0]);
1511 n1 = g_utf8_strdown (s1, -1);
1512 n2 = g_utf8_strdown (s2, -1);
1514 result = g_utf8_collate (n1, n2);
1525 modest_text_utils_get_display_date (time_t date)
1527 #define DATE_BUF_SIZE 64
1528 static gchar date_buf[DATE_BUF_SIZE];
1530 /* calculate the # of days since epoch for
1531 * for today and for the date provided
1532 * based on idea from pvanhoof */
1533 int day = time(NULL) / (24 * 60 * 60);
1534 int date_day = date / (24 * 60 * 60);
1536 /* if it's today, show the time, if it's not today, show the date instead */
1538 /* TODO: take into account the system config for 24/12h */
1539 #ifdef MODEST_TOOLKIT_HILDON2
1540 if (day == date_day) /* is the date today? */
1541 modest_text_utils_strftime (date_buf, DATE_BUF_SIZE, _HL("wdgt_va_24h_time"), date);
1543 modest_text_utils_strftime (date_buf, DATE_BUF_SIZE, _HL("wdgt_va_date"), date);
1545 if (day == date_day) /* is the date today? */
1546 modest_text_utils_strftime (date_buf, DATE_BUF_SIZE, "%X", date);
1548 modest_text_utils_strftime (date_buf, DATE_BUF_SIZE, "%x", date);
1551 return date_buf; /* this is a static buffer, don't free! */
1557 modest_text_utils_validate_folder_name (const gchar *folder_name)
1559 /* based on http://msdn2.microsoft.com/en-us/library/aa365247.aspx,
1560 * with some extras */
1564 const gchar **cursor = NULL;
1565 const gchar *forbidden_names[] = { /* windows does not like these */
1566 "CON", "PRN", "AUX", "NUL", ".", "..", "cur", "tmp", "new",
1567 NULL /* cur, tmp, new are reserved for Maildir */
1570 /* cannot be NULL */
1574 /* cannot be empty */
1575 len = strlen(folder_name);
1579 /* cannot start with a dot, vfat does not seem to like that */
1580 if (folder_name[0] == '.')
1583 /* cannot start or end with a space */
1584 if (g_ascii_isspace(folder_name[0]) || g_ascii_isspace(folder_name[len - 1]))
1587 /* cannot contain a forbidden char */
1588 for (i = 0; i < len; i++)
1589 if (modest_text_utils_is_forbidden_char (folder_name[i], FOLDER_NAME_FORBIDDEN_CHARS))
1592 /* Cannot contain Windows port numbers. I'd like to use GRegex
1593 but it's still not available in Maemo. sergio */
1594 if (!g_ascii_strncasecmp (folder_name, "LPT", 3) ||
1595 !g_ascii_strncasecmp (folder_name, "COM", 3)) {
1599 /* We skip the first 3 characters for the
1601 val = strtol(folder_name+3, &endptr, 10);
1603 /* If the conversion to long succeeded then the string
1604 is not valid for us */
1605 if (*endptr == '\0')
1611 /* cannot contain a forbidden word */
1613 for (cursor = forbidden_names; cursor && *cursor; ++cursor) {
1614 if (g_ascii_strcasecmp (folder_name, *cursor) == 0)
1619 return TRUE; /* it's valid! */
1625 modest_text_utils_validate_domain_name (const gchar *domain)
1627 gboolean valid = FALSE;
1629 const gchar* domain_regex = "^([a-z0-9-]*[a-z0-9]\\.)+[a-z0-9-]*[a-z0-9]$";
1631 g_return_val_if_fail (domain, FALSE);
1636 memset (&rx, 0, sizeof(regex_t)); /* coverity wants this... */
1638 /* domain name: all alphanum or '-' or '.',
1639 * but beginning/ending in alphanum */
1640 if (regcomp (&rx, domain_regex, REG_ICASE|REG_EXTENDED|REG_NOSUB)) {
1641 g_warning ("BUG: error in regexp");
1645 valid = (regexec (&rx, domain, 1, NULL, 0) == 0);
1654 modest_text_utils_validate_email_address (const gchar *email_address,
1655 const gchar **invalid_char_position)
1658 const gchar *c = NULL, *domain = NULL;
1659 static gchar *rfc822_specials = "()<>@,;:\\\"[]&";
1661 if (invalid_char_position)
1662 *invalid_char_position = NULL;
1664 g_return_val_if_fail (email_address, FALSE);
1666 /* check that the email adress contains exactly one @ */
1667 if (!strstr(email_address, "@") ||
1668 (strstr(email_address, "@") != g_strrstr(email_address, "@")))
1671 /* first we validate the name portion (name@domain) */
1672 for (c = email_address; *c; c++) {
1674 (c == email_address ||
1676 *(c - 1) == '\"')) {
1680 if (*c == '\\' && (*++c == ' '))
1682 if (*c <= ' ' || *c >= 127)
1695 if (*c <= ' ' || *c >= 127)
1697 if (strchr(rfc822_specials, *c)) {
1698 if (invalid_char_position)
1699 *invalid_char_position = c;
1703 if (c == email_address || *(c - 1) == '.')
1706 /* next we validate the domain portion (name@domain) */
1707 if (!*(domain = ++c))
1711 if (c == domain || *(c - 1) == '.' || *(c + 1) == '\0')
1715 if (*c <= ' ' || *c >= 127)
1717 if (strchr(rfc822_specials, *c)) {
1718 if (invalid_char_position)
1719 *invalid_char_position = c;
1724 return (count >= 1) ? TRUE : FALSE;
1728 modest_text_utils_validate_recipient (const gchar *recipient, const gchar **invalid_char_position)
1730 gchar *stripped, *current;
1732 gboolean has_error = FALSE;
1734 if (invalid_char_position)
1735 *invalid_char_position = NULL;
1737 g_return_val_if_fail (recipient, FALSE);
1739 if (modest_text_utils_validate_email_address (recipient, invalid_char_position))
1742 stripped = g_strdup (recipient);
1743 stripped = g_strstrip (stripped);
1746 if (*current == '\0') {
1752 if (*current == '\"') {
1753 gchar *last_quote = NULL;
1754 current = g_utf8_next_char (current);
1756 for (; *current != '\0'; current = g_utf8_next_char (current)) {
1757 if (*current == '\\') {
1758 /* TODO: This causes a warning, which breaks the build,
1759 * because a gchar cannot be < 0.
1761 if (current[1] <0) {
1766 } else if (*current == '\"') {
1768 current = g_utf8_next_char (current);
1769 last_quote = current;
1773 current = g_utf8_next_char (last_quote);
1776 for (current = stripped ; *current != '\0'; current = g_utf8_next_char (current)) {
1777 if (*current == '<') {
1789 right_part = g_strdup (current);
1791 right_part = g_strstrip (right_part);
1793 if (g_str_has_suffix (right_part, ",") || g_str_has_suffix (right_part, ";"))
1794 right_part [(strlen (right_part) - 1)] = '\0';
1796 if (g_str_has_prefix (right_part, "<") &&
1797 g_str_has_suffix (right_part, ">")) {
1801 address = g_strndup (right_part+1, strlen (right_part) - 2);
1802 g_free (right_part);
1803 valid = modest_text_utils_validate_email_address (address, invalid_char_position);
1807 g_free (right_part);
1814 modest_text_utils_get_display_size (guint64 size)
1816 const guint KB=1024;
1817 const guint MB=1024 * KB;
1818 const guint GB=1024 * MB;
1821 return g_strdup_printf (_FM_SIZE_KB, (int) 0);
1822 if (0 <= size && size < KB)
1823 return g_strdup_printf (_FM_SIZE_1KB_99KB, (int) 1);
1824 else if (KB <= size && size < 100 * KB)
1825 return g_strdup_printf (_FM_SIZE_1KB_99KB, (int) size / KB);
1826 else if (100*KB <= size && size < MB)
1827 return g_strdup_printf (_FM_SIZE_100KB_1MB, (int) size / KB);
1828 else if (MB <= size && size < 10*MB)
1829 return g_strdup_printf (_FM_SIZE_1MB_10MB, (float) size / MB);
1830 else if (10*MB <= size && size < GB)
1831 return g_strdup_printf (_FM_SIZE_10MB_1GB, (float) size / MB);
1833 return g_strdup_printf (_FM_SIZE_1GB_OR_GREATER, (float) size / GB);
1837 get_email_from_address (const gchar * address)
1839 gchar *left_limit, *right_limit;
1841 left_limit = strstr (address, "<");
1842 right_limit = g_strrstr (address, ">");
1844 if ((left_limit == NULL)||(right_limit == NULL)|| (left_limit > right_limit))
1845 return g_strdup (address);
1847 return g_strndup (left_limit + 1, (right_limit - left_limit) - 1);
1851 modest_text_utils_get_color_string (GdkColor *color)
1853 g_return_val_if_fail (color, NULL);
1855 return g_strdup_printf ("#%x%x%x%x%x%x%x%x%x%x%x%x",
1856 (color->red >> 12) & 0xf, (color->red >> 8) & 0xf,
1857 (color->red >> 4) & 0xf, (color->red) & 0xf,
1858 (color->green >> 12) & 0xf, (color->green >> 8) & 0xf,
1859 (color->green >> 4) & 0xf, (color->green) & 0xf,
1860 (color->blue >> 12) & 0xf, (color->blue >> 8) & 0xf,
1861 (color->blue >> 4) & 0xf, (color->blue) & 0xf);
1865 modest_text_utils_text_buffer_get_text (GtkTextBuffer *buffer)
1867 GtkTextIter start, end;
1868 gchar *slice, *current;
1869 GString *result = g_string_new ("");
1871 g_return_val_if_fail (buffer && GTK_IS_TEXT_BUFFER (buffer), NULL);
1873 gtk_text_buffer_get_start_iter (buffer, &start);
1874 gtk_text_buffer_get_end_iter (buffer, &end);
1876 slice = gtk_text_buffer_get_slice (buffer, &start, &end, FALSE);
1879 while (current && current != '\0') {
1880 if (g_utf8_get_char (current) == 0xFFFC) {
1881 result = g_string_append_c (result, ' ');
1882 current = g_utf8_next_char (current);
1884 gchar *next = g_utf8_strchr (current, -1, 0xFFFC);
1886 result = g_string_append (result, current);
1888 result = g_string_append_len (result, current, next - current);
1895 return g_string_free (result, FALSE);
1900 modest_text_utils_is_forbidden_char (const gchar character,
1901 ModestTextUtilsForbiddenCharType type)
1904 const gchar *forbidden_chars = NULL;
1906 /* We need to get the length in the switch because the
1907 compiler needs to know the size at compile time */
1909 case ACCOUNT_TITLE_FORBIDDEN_CHARS:
1910 forbidden_chars = account_title_forbidden_chars;
1911 len = G_N_ELEMENTS (account_title_forbidden_chars);
1913 case FOLDER_NAME_FORBIDDEN_CHARS:
1914 forbidden_chars = folder_name_forbidden_chars;
1915 len = G_N_ELEMENTS (folder_name_forbidden_chars);
1917 case USER_NAME_FORBIDDEN_NAMES:
1918 forbidden_chars = user_name_forbidden_chars;
1919 len = G_N_ELEMENTS (user_name_forbidden_chars);
1922 g_return_val_if_reached (TRUE);
1925 for (i = 0; i < len ; i++)
1926 if (forbidden_chars[i] == character)
1929 return FALSE; /* it's valid! */
1933 modest_text_utils_label_get_selection (GtkLabel *label)
1938 if (gtk_label_get_selection_bounds (GTK_LABEL (label), &start, &end)) {
1939 const gchar *start_offset;
1940 const gchar *end_offset;
1941 start_offset = gtk_label_get_text (GTK_LABEL (label));
1942 start_offset = g_utf8_offset_to_pointer (start_offset, start);
1943 end_offset = gtk_label_get_text (GTK_LABEL (label));
1944 end_offset = g_utf8_offset_to_pointer (end_offset, end);
1945 selection = g_strndup (start_offset, end_offset - start_offset);
1948 return g_strdup ("");
1953 _forward_search_image_char (gunichar ch,
1956 return (ch == 0xFFFC);
1960 modest_text_utils_buffer_selection_is_valid (GtkTextBuffer *buffer)
1963 GtkTextIter start, end;
1965 g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), FALSE);
1967 result = gtk_text_buffer_get_has_selection (GTK_TEXT_BUFFER (buffer));
1969 /* check there are no images in selection */
1971 gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
1972 if (gtk_text_iter_get_char (&start)== 0xFFFC)
1975 gtk_text_iter_backward_char (&end);
1976 if (gtk_text_iter_forward_find_char (&start, _forward_search_image_char,
1987 remove_quotes (gchar **quotes)
1989 if (g_str_has_prefix (*quotes, "\"") && g_str_has_suffix (*quotes, "\"")) {
1991 result = g_strndup ((*quotes)+1, strlen (*quotes) - 2);
1998 remove_extra_spaces (gchar *string)
2003 while (start && start[0] != '\0') {
2004 if ((start[0] == ' ') && (start[1] == ' ')) {
2005 g_strchug (start+1);
2012 modest_text_utils_escape_mnemonics (const gchar *text)
2015 GString *result = NULL;
2020 result = g_string_new ("");
2021 for (p = text; *p != '\0'; p++) {
2023 result = g_string_append (result, "__");
2025 result = g_string_append_c (result, *p);
2028 return g_string_free (result, FALSE);
2032 modest_text_utils_simplify_recipients (const gchar *recipients)
2034 GSList *addresses, *node;
2036 gboolean is_first = TRUE;
2038 if (recipients == NULL)
2039 return g_strdup ("");
2041 addresses = modest_text_utils_split_addresses_list (recipients);
2042 result = g_string_new ("");
2044 for (node = addresses; node != NULL; node = g_slist_next (node)) {
2045 const gchar *address = (const gchar *) node->data;
2046 gchar *left_limit, *right_limit;
2048 left_limit = strstr (address, "<");
2049 right_limit = g_strrstr (address, ">");
2054 result = g_string_append (result, ", ");
2056 if ((left_limit == NULL)||(right_limit == NULL)|| (left_limit > right_limit)) {
2057 result = g_string_append (result, address);
2061 name_side = g_strndup (address, left_limit - address);
2062 name_side = g_strstrip (name_side);
2063 remove_quotes (&name_side);
2064 email_side = get_email_from_address (address);
2065 if (name_side && email_side && !strcmp (name_side, email_side)) {
2066 result = g_string_append (result, email_side);
2068 result = g_string_append (result, address);
2071 g_free (email_side);
2075 g_slist_foreach (addresses, (GFunc)g_free, NULL);
2076 g_slist_free (addresses);
2078 return g_string_free (result, FALSE);
2083 modest_text_utils_remove_duplicate_addresses_list (GSList *address_list)
2085 GSList *new_list, *iter;
2088 g_return_val_if_fail (address_list, NULL);
2090 table = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
2092 new_list = address_list;
2093 iter = address_list;
2095 const gchar* address = (const gchar*)iter->data;
2097 /* We need only the email to just compare it and not
2098 the full address which would make "a <a@a.com>"
2099 different from "a@a.com" */
2100 const gchar *email = get_email_from_address (address);
2102 /* ignore the address if already seen */
2103 if (g_hash_table_lookup (table, email) == 0) {
2104 g_hash_table_insert (table, (gchar*)email, GINT_TO_POINTER(1));
2105 iter = g_slist_next (iter);
2107 GSList *tmp = g_slist_next (iter);
2108 new_list = g_slist_delete_link (new_list, iter);
2113 g_hash_table_unref (table);
2119 modest_text_utils_get_secure_header (const gchar *value,
2120 const gchar *header)
2122 const gint max_len = 16384;
2123 gchar *new_value = NULL;
2124 gchar *needle = g_strrstr (value, header);
2126 if (needle && value != needle)
2127 new_value = g_strdup (needle + strlen (header));
2130 new_value = g_strdup (value);
2132 /* Do a max length check to prevent DoS attacks caused by huge
2133 malformed headers */
2134 if (g_utf8_validate (new_value, -1, NULL)) {
2135 if (g_utf8_strlen (new_value, -1) > max_len) {
2136 gchar *tmp = g_malloc0 (max_len * 4);
2137 g_utf8_strncpy (tmp, (const gchar *) new_value, max_len);
2142 if (strlen (new_value) > max_len) {
2143 gchar *tmp = g_malloc0 (max_len);
2144 strncpy (new_value, tmp, max_len);
2154 is_quoted (const char *start, const gchar *end)
2158 c = (gchar *) start;
2160 c = g_utf8_next_char (c);
2162 if (*c == '\0' || *c != '\"')
2166 while (*c == ' ' && c != start)
2167 c = g_utf8_prev_char (c);
2169 if (c == start || *c != '\"')
2177 quote_name_part (GString **str, gchar **cur, gchar **start)
2180 gint str_len = g_utf8_pointer_to_offset (*start, *cur) -
2181 g_utf8_pointer_to_offset (*start, *start);
2183 while (**start == ' ') {
2184 *start = g_utf8_next_char (*start);
2188 blank = g_utf8_strrchr (*start, str_len, g_utf8_get_char (" "));
2189 if (blank && (blank != *start)) {
2190 if (is_quoted (*start, blank - 1)) {
2191 *str = g_string_append_len (*str, *start, str_len);
2192 *str = g_string_append (*str, ";");
2193 *start = g_utf8_next_char (*cur);
2195 *str = g_string_append_c (*str, '"');
2196 *str = g_string_append_len (*str, *start,
2197 (g_utf8_pointer_to_offset (*start, blank) -
2198 g_utf8_pointer_to_offset (*start, *start)));
2199 *str = g_string_append_c (*str, '"');
2200 *str = g_string_append_len (*str, blank,
2201 (g_utf8_pointer_to_offset (*start, *cur) -
2202 g_utf8_pointer_to_offset (*start, blank)));
2203 *str = g_string_append (*str, ";");
2204 *start = g_utf8_next_char (*cur);
2207 *str = g_string_append_len (*str, *start, str_len);
2208 *str = g_string_append (*str, ";");
2209 *start = g_utf8_next_char (*cur);
2214 modest_text_utils_quote_names (const gchar *recipients)
2219 str = g_string_new ("");
2220 start = (gchar*) recipients;
2221 cur = (gchar*) recipients;
2223 for (cur = start; *cur != '\0'; cur = g_utf8_next_char (cur)) {
2224 if (*cur == ',' || *cur == ';') {
2225 if (!g_utf8_strchr (start, (cur - start + 1), g_utf8_get_char ("@")))
2227 quote_name_part (&str, &cur, &start);
2231 quote_name_part (&str, &cur, &start);
2233 return g_string_free (str, FALSE);