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 translated_found = FALSE;
308 if (!subject || subject[0] == '\0')
309 subject = _("mail_va_no_subject");
311 subject_dup = g_strdup (subject);
312 tmp = g_strchug (subject_dup);
314 prefix = (is_reply) ? _("mail_va_re") : _("mail_va_fw");
315 prefix = g_strconcat (prefix, ":", NULL);
316 prefix_len = g_utf8_strlen (prefix, -1);
318 untranslated_prefix = (is_reply) ? "Re:" : "Fw:";
319 untranslated_prefix_len = 3;
321 /* We do not want things like "Re: Re: Re:" or "Fw: Fw:" so
322 delete the previous ones */
325 if (g_str_has_prefix (tmp, prefix)) {
327 tmp = g_strchug (tmp);
328 /* Do not consider translated prefixes in the
329 middle of a Re:Re:..Re: like sequence */
330 if (G_UNLIKELY (first_time))
331 translated_found = TRUE;
332 } else if (g_str_has_prefix (tmp, untranslated_prefix)) {
333 tmp += untranslated_prefix_len;
334 tmp = g_strchug (tmp);
336 gchar *prefix_down, *tmp_down;
338 /* We need this to properly check the cases of
339 some clients adding FW: instead of Fw: for
341 prefix_down = g_utf8_strdown (prefix, -1);
342 tmp_down = g_utf8_strdown (tmp, -1);
343 if (g_str_has_prefix (tmp_down, prefix_down)) {
345 tmp = g_strchug (tmp);
346 g_free (prefix_down);
349 g_free (prefix_down);
357 if (!g_strcmp0 (subject, tmp)) {
359 retval = g_strdup_printf ("%s %s", untranslated_prefix, tmp);
361 if (translated_found) {
362 /* Found a translated prefix, i.e, "VS:" in Finish */
363 retval = g_strdup_printf ("%s %s", prefix, tmp);
365 retval = g_strdup_printf ("%s %s", untranslated_prefix, tmp);
368 g_free (subject_dup);
375 /* Performs a case-insensitive strstr for ASCII strings */
377 ascii_stristr(const gchar *haystack, const gchar *needle)
382 const gchar *max_pos;
384 if (haystack == NULL || needle == NULL) {
385 return haystack; /* as in strstr */
388 needle_len = strlen(needle);
390 if (needle_len == 0) {
391 return haystack; /* as in strstr */
394 haystack_len = strlen(haystack);
395 max_pos = haystack + haystack_len - needle_len;
397 for (pos = haystack; pos <= max_pos; pos++) {
398 if (g_ascii_strncasecmp (pos, needle, needle_len) == 0) {
408 modest_text_utils_remove_address (const gchar *address_list, const gchar *address)
410 gchar *dup, *token, *ptr = NULL, *result;
411 GString *filtered_emails;
412 gchar *email_address;
414 g_return_val_if_fail (address_list, NULL);
417 return g_strdup (address_list);
419 email_address = get_email_from_address (address);
421 /* search for substring */
422 if (!ascii_stristr ((const char *) address_list, (const char *) email_address)) {
423 g_free (email_address);
424 return g_strdup (address_list);
427 dup = g_strdup (address_list);
428 filtered_emails = g_string_new (NULL);
430 token = strtok_r (dup, ",", &ptr);
432 while (token != NULL) {
433 /* Add to list if not found */
434 if (!ascii_stristr ((const char *) token, (const char *) email_address)) {
435 if (filtered_emails->len == 0)
436 g_string_append_printf (filtered_emails, "%s", g_strstrip (token));
438 g_string_append_printf (filtered_emails, ",%s", g_strstrip (token));
440 token = strtok_r (NULL, ",", &ptr);
442 result = filtered_emails->str;
445 g_free (email_address);
447 g_string_free (filtered_emails, FALSE);
454 modest_text_utils_remove_duplicate_addresses (const gchar *address_list)
456 GSList *addresses, *cursor;
458 gchar *new_list = NULL;
460 g_return_val_if_fail (address_list, NULL);
462 table = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
463 addresses = modest_text_utils_split_addresses_list (address_list);
467 const gchar* address = (const gchar*)cursor->data;
469 /* We need only the email to just compare it and not
470 the full address which would make "a <a@a.com>"
471 different from "a@a.com" */
472 const gchar *email = get_email_from_address (address);
474 /* ignore the address if already seen */
475 if (g_hash_table_lookup (table, email) == 0) {
478 /* Include the full address and not only the
479 email in the returned list */
481 tmp = g_strdup (address);
483 tmp = g_strjoin (",", new_list, address, NULL);
488 g_hash_table_insert (table, (gchar*)email, GINT_TO_POINTER(1));
490 cursor = g_slist_next (cursor);
493 g_hash_table_unref (table);
494 g_slist_foreach (addresses, (GFunc)g_free, NULL);
495 g_slist_free (addresses);
497 if (new_list == NULL)
498 new_list = g_strdup ("");
505 modest_text_utils_convert_buffer_to_html_start (GString *html, const gchar *data, gssize n)
508 gboolean space_seen = FALSE;
509 guint break_dist = 0; /* distance since last break point */
514 /* replace with special html chars where needed*/
515 for (i = 0; i != n; ++i) {
516 guchar kar = data[i];
518 if (space_seen && kar != ' ') {
519 g_string_append (html, " ");
523 /* we artificially insert a breakpoint (newline)
524 * after 256, to make sure our lines are not so long
525 * they will DOS the regexping later
526 * Also, check that kar is ASCII to make sure that we
527 * don't break a UTF8 char in two
529 if (++break_dist >= 256 && kar < 127) {
530 g_string_append_c (html, '\n');
538 /* this is a temp place holder for '&'; we can only
539 * set the real '&' after hyperlink translation, otherwise
540 * we might screw that up */
541 break; /* ignore embedded \0s and MARK_AMP */
542 case '<' : g_string_append (html, MARK_AMP_STR "lt;"); break;
543 case '>' : g_string_append (html, MARK_AMP_STR "gt;"); break;
544 case '&' : g_string_append (html, MARK_AMP_URI_STR "amp;"); break; /* special case */
545 case '"' : g_string_append (html, MARK_AMP_STR "quot;"); break;
547 /* don't convert ' --> wpeditor will try to re-convert it... */
548 //case '\'' : g_string_append (html, "'"); break;
549 case '\n' : g_string_append (html, "<br/>\n");break_dist= 0; break;
550 case '\t' : g_string_append (html, MARK_AMP_STR "nbsp;" MARK_AMP_STR "nbsp;" MARK_AMP_STR "nbsp; ");
551 break_dist=0; break; /* note the space at the end*/
554 if (space_seen) { /* second space in a row */
555 g_string_append (html, " ");
560 g_string_append_c (html, kar);
567 modest_text_utils_convert_buffer_to_html_finish (GString *html)
570 /* replace all our MARK_AMPs with real ones */
571 for (i = 0; i != html->len; ++i)
572 if ((html->str)[i] == MARK_AMP || (html->str)[i] == MARK_AMP_URI)
573 (html->str)[i] = '&';
578 modest_text_utils_convert_to_html (const gchar *data)
583 g_return_val_if_fail (data, NULL);
589 html = g_string_sized_new (1.5 * len); /* just a guess... */
591 g_string_append_printf (html,
593 "<meta http-equiv=\"content-type\" content=\"text/html; charset=utf8\">"
597 modest_text_utils_convert_buffer_to_html_start (html, data, -1);
599 g_string_append (html, "</body></html>");
601 if (len <= HYPERLINKIFY_MAX_LENGTH)
602 hyperlinkify_plain_text (html, 0);
604 modest_text_utils_convert_buffer_to_html_finish (html);
606 return g_string_free (html, FALSE);
610 modest_text_utils_convert_to_html_body (const gchar *data, gssize n, gboolean hyperlinkify)
614 g_return_val_if_fail (data, NULL);
621 html = g_string_sized_new (1.5 * n); /* just a guess... */
623 modest_text_utils_convert_buffer_to_html_start (html, data, n);
625 if (hyperlinkify && (n < HYPERLINKIFY_MAX_LENGTH))
626 hyperlinkify_plain_text (html, 0);
628 modest_text_utils_convert_buffer_to_html_finish (html);
630 return g_string_free (html, FALSE);
634 modest_text_utils_get_addresses_indexes (const gchar *addresses, GSList **start_indexes, GSList **end_indexes)
642 if (strlen (addresses) == 0)
645 str = g_string_new ("");
646 start = (gchar*) addresses;
647 cur = (gchar*) addresses;
649 for (cur = start; *cur != '\0'; cur = g_utf8_next_char (cur)) {
650 if (*cur == ',' || *cur == ';') {
651 gint *start_index, *end_index;
652 gchar *next_char = g_utf8_next_char (cur);
654 if (!g_utf8_strchr (start, (cur - start + 1), g_utf8_get_char ("@")) &&
655 next_char && *next_char != '\n' && *next_char != '\0')
658 start_index = g_new0 (gint, 1);
659 end_index = g_new0 (gint, 1);
660 *start_index = g_utf8_pointer_to_offset (addresses, start);
661 *end_index = g_utf8_pointer_to_offset (addresses, cur);;
662 *start_indexes = g_slist_prepend (*start_indexes, start_index);
663 *end_indexes = g_slist_prepend (*end_indexes, end_index);
664 start = g_utf8_next_char (cur);
669 gint *start_index, *end_index;
670 start_index = g_new0 (gint, 1);
671 end_index = g_new0 (gint, 1);
672 *start_index = g_utf8_pointer_to_offset (addresses, start);
673 *end_index = g_utf8_pointer_to_offset (addresses, cur);;
674 *start_indexes = g_slist_prepend (*start_indexes, start_index);
675 *end_indexes = g_slist_prepend (*end_indexes, end_index);
679 *start_indexes = g_slist_reverse (*start_indexes);
681 *end_indexes = g_slist_reverse (*end_indexes);
686 modest_text_utils_split_addresses_list (const gchar *addresses)
689 const gchar *my_addrs = addresses;
692 gboolean after_at = FALSE;
694 g_return_val_if_fail (addresses, NULL);
696 /* skip any space, ',', ';' '\n' at the start */
697 while (my_addrs && (my_addrs[0] == ' ' || my_addrs[0] == ',' ||
698 my_addrs[0] == ';' || my_addrs[0] == '\n'))
701 /* are we at the end of addresses list? */
705 /* nope, we are at the start of some address
706 * now, let's find the end of the address */
708 while (end[0] && end[0] != ';' && !(after_at && end[0] == ',')) {
709 if (end[0] == '\"') {
710 while (end[0] && end[0] != '\"')
716 if ((end[0] && end[0] == '>')&&(end[1] && end[1] == ',')) {
723 /* we got the address; copy it and remove trailing whitespace */
724 addr = g_strndup (my_addrs, end - my_addrs);
727 remove_extra_spaces (addr);
729 head = g_slist_append (NULL, addr);
730 head->next = modest_text_utils_split_addresses_list (end); /* recurse */
736 modest_text_utils_join_addresses (const gchar *from,
742 gboolean add_separator = FALSE;
744 buffer = g_string_new ("");
746 if (from && strlen (from)) {
747 buffer = g_string_append (buffer, from);
748 add_separator = TRUE;
750 if (to && strlen (to)) {
752 buffer = g_string_append (buffer, "; ");
754 add_separator = TRUE;
756 buffer = g_string_append (buffer, to);
758 if (cc && strlen (cc)) {
760 buffer = g_string_append (buffer, "; ");
762 add_separator = TRUE;
764 buffer = g_string_append (buffer, cc);
766 if (bcc && strlen (bcc)) {
768 buffer = g_string_append (buffer, "; ");
770 add_separator = TRUE;
772 buffer = g_string_append (buffer, bcc);
775 return g_string_free (buffer, FALSE);
779 modest_text_utils_address_range_at_position (const gchar *recipients_list,
784 gchar *current = NULL;
785 gint range_start = 0;
788 gboolean is_quoted = FALSE;
790 g_return_if_fail (recipients_list);
791 g_return_if_fail (position < g_utf8_strlen(recipients_list, -1));
794 for (current = (gchar *) recipients_list; *current != '\0';
795 current = g_utf8_find_next_char (current, NULL)) {
796 gunichar c = g_utf8_get_char (current);
798 if ((c == ',') && (!is_quoted)) {
799 if (index < position) {
800 range_start = index + 1;
804 } else if (c == '\"') {
805 is_quoted = !is_quoted;
806 } else if ((c == ' ') &&(range_start == index)) {
814 *start = range_start;
820 modest_text_utils_address_with_standard_length (const gchar *recipients_list)
824 GString *buffer = g_string_new ("");
826 splitted = g_strsplit (recipients_list, "\n", 0);
830 if (current != splitted)
831 buffer = g_string_append_c (buffer, '\n');
832 line = g_strndup (*splitted, 1000);
833 buffer = g_string_append (buffer, line);
838 g_strfreev (splitted);
840 return g_string_free (buffer, FALSE);
844 /* ******************************************************************* */
845 /* ************************* UTILIY FUNCTIONS ************************ */
846 /* ******************************************************************* */
849 get_next_line (const gchar * b, const gsize blen, const gchar * iter)
855 return g_string_new("");
863 gs = g_string_new_len (i0, iter - i0);
867 get_indent_level (const char *l)
884 /* if we hit the signature marker "-- ", we return -(indent + 1). This
885 * stops reformatting.
887 if (strcmp (l, MODEST_TEXT_UTILS_SIGNATURE_MARKER) == 0) {
895 unquote_line (GString * l, const gchar *quote_symbol)
901 quote_len = strlen (quote_symbol);
903 if (g_str_has_prefix (p, quote_symbol)) {
904 if (p[quote_len] == ' ') {
912 g_string_erase (l, 0, p - l->str);
916 append_quoted (GString * buf, const gchar *quote_symbol,
917 int indent, const GString * str,
923 indent = indent < 0 ? abs (indent) - 1 : indent;
924 quote_concat = g_strconcat (quote_symbol, " ", NULL);
925 for (i = 0; i <= indent; i++) {
926 g_string_append (buf, quote_concat);
928 g_free (quote_concat);
930 g_string_append_len (buf, str->str, cutpoint);
932 g_string_append (buf, str->str);
934 g_string_append (buf, "\n");
938 get_breakpoint_utf8 (const gchar * s, gint indent, const gint limit)
941 const gchar *pos, *last;
944 indent = indent < 0 ? abs (indent) - 1 : indent;
948 uni = g_utf8_to_ucs4_fast (s, -1, NULL);
950 if ((index + 2 * indent > limit) && last) {
954 if (g_unichar_isspace (uni[index])) {
957 pos = g_utf8_next_char (pos);
965 get_breakpoint_ascii (const gchar * s, const gint indent, const gint limit)
970 if (last + 2 * indent < limit)
973 for (i = strlen (s); i > 0; i--) {
975 if (i + 2 * indent <= limit) {
986 get_breakpoint (const gchar * s, const gint indent, const gint limit)
989 if (g_utf8_validate (s, -1, NULL)) {
990 return get_breakpoint_utf8 (s, indent, limit);
991 } else { /* assume ASCII */
992 //g_warning("invalid UTF-8 in msg");
993 return get_breakpoint_ascii (s, indent, limit);
998 cite (const time_t sent_date, const gchar *from)
1000 return g_strdup (_("mcen_ia_editor_original_message"));
1004 quoted_attachments (GList *attachments)
1007 GString *result = g_string_new ("");
1008 for (node = attachments; node != NULL; node = g_list_next (node)) {
1009 gchar *filename = (gchar *) node->data;
1010 g_string_append_printf ( result, "%s %s\n", _("mcen_ia_editor_attach_filename"), filename);
1013 return g_string_free (result, FALSE);
1018 modest_text_utils_quote_body (GString *output, const gchar *text,
1019 const gchar *quote_symbol,
1025 gint indent, breakpoint, rem_indent = 0;
1026 GString *l, *remaining;
1030 remaining = g_string_new ("");
1032 l = get_next_line (text, len, iter);
1033 iter = iter + l->len + 1;
1034 indent = get_indent_level (l->str);
1035 unquote_line (l, quote_symbol);
1037 if (remaining->len) {
1038 if (l->len && indent == rem_indent) {
1039 g_string_prepend (l, " ");
1040 g_string_prepend (l, remaining->str);
1043 gunichar remaining_first;
1045 get_breakpoint (remaining->str,
1048 append_quoted (output, quote_symbol, rem_indent,
1049 remaining, breakpoint);
1050 g_string_erase (remaining, 0,
1052 remaining_first = g_utf8_get_char_validated (remaining->str, remaining->len);
1053 if (remaining_first != ((gunichar) -1)) {
1054 if (g_unichar_isspace (remaining_first)) {
1055 g_string_erase (remaining, 0, g_utf8_next_char (remaining->str) - remaining->str);
1058 } while (remaining->len);
1061 g_string_free (remaining, TRUE);
1062 breakpoint = get_breakpoint (l->str, indent, limit);
1063 remaining = g_string_new (l->str + breakpoint);
1064 if (remaining->str[0] == ' ') {
1065 g_string_erase (remaining, 0, 1);
1067 rem_indent = indent;
1068 append_quoted (output, quote_symbol, indent, l, breakpoint);
1069 g_string_free (l, TRUE);
1070 } while ((iter < text + len) || (remaining->str[0]));
1076 modest_text_utils_quote_plain_text (const gchar *text,
1078 const gchar *signature,
1083 gchar *attachments_string = NULL;
1085 q = g_string_new ("");
1087 if (signature != NULL) {
1088 g_string_append_printf (q, "\n%s\n", MODEST_TEXT_UTILS_SIGNATURE_MARKER);
1089 q = g_string_append (q, signature);
1092 q = g_string_append (q, "\n");
1093 q = g_string_append (q, cite);
1094 q = g_string_append_c (q, '\n');
1096 q = modest_text_utils_quote_body (q, text, ">", limit);
1098 attachments_string = quoted_attachments (attachments);
1099 q = g_string_append (q, attachments_string);
1100 g_free (attachments_string);
1102 return g_string_free (q, FALSE);
1106 quote_html_add_to_gstring (GString *string,
1109 if (text && strcmp (text, "")) {
1110 gchar *html_text = modest_text_utils_convert_to_html_body (text, -1, TRUE);
1111 g_string_append_printf (string, "%s<br/>", html_text);
1117 modest_text_utils_quote_html (const gchar *text,
1119 const gchar *signature,
1123 GString *result_string;
1127 "<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">\n" \
1131 if (text || cite || signature) {
1132 GString *quoted_text;
1133 g_string_append (result_string, "<pre>\n");
1135 quote_html_add_to_gstring (result_string, MODEST_TEXT_UTILS_SIGNATURE_MARKER);
1136 quote_html_add_to_gstring (result_string, signature);
1138 quote_html_add_to_gstring (result_string, cite);
1139 quoted_text = g_string_new ("");
1140 quoted_text = modest_text_utils_quote_body (quoted_text, (text) ? text : "", ">", limit);
1141 quote_html_add_to_gstring (result_string, quoted_text->str);
1142 g_string_free (quoted_text, TRUE);
1144 gchar *attachments_string = quoted_attachments (attachments);
1145 quote_html_add_to_gstring (result_string, attachments_string);
1146 g_free (attachments_string);
1148 g_string_append (result_string, "</pre>");
1150 g_string_append (result_string, "</body>");
1151 g_string_append (result_string, "</html>");
1153 return g_string_free (result_string, FALSE);
1157 cmp_offsets_reverse (const url_match_t *match1, const url_match_t *match2)
1159 return match2->offset - match1->offset;
1162 static gint url_matches_block = 0;
1163 static url_match_pattern_t patterns[] = MAIL_VIEWER_URL_MATCH_PATTERNS;
1164 static GMutex *url_patterns_mutex = NULL;
1171 const size_t pattern_num = sizeof(patterns)/sizeof(url_match_pattern_t);
1172 for (i = 0; i != pattern_num; ++i) {
1173 patterns[i].preg = g_slice_new0 (regex_t);
1175 /* this should not happen */
1176 if (regcomp (patterns[i].preg, patterns[i].regex,
1177 REG_ICASE|REG_EXTENDED|REG_NEWLINE) != 0) {
1178 g_warning ("%s: error in regexp:\n%s\n", __FUNCTION__, patterns[i].regex);
1189 const size_t pattern_num = sizeof(patterns)/sizeof(url_match_pattern_t);
1190 for (i = 0; i != pattern_num; ++i) {
1191 regfree (patterns[i].preg);
1192 g_slice_free (regex_t, patterns[i].preg);
1193 } /* don't free patterns itself -- it's static */
1197 modest_text_utils_hyperlinkify_begin (void)
1200 if (url_patterns_mutex == NULL) {
1201 url_patterns_mutex = g_mutex_new ();
1203 g_mutex_lock (url_patterns_mutex);
1204 if (url_matches_block == 0)
1205 compile_patterns ();
1206 url_matches_block ++;
1207 g_mutex_unlock (url_patterns_mutex);
1211 modest_text_utils_hyperlinkify_end (void)
1213 g_mutex_lock (url_patterns_mutex);
1214 url_matches_block--;
1215 if (url_matches_block <= 0)
1217 g_mutex_unlock (url_patterns_mutex);
1222 get_url_matches (GString *txt, gint offset)
1225 guint rv, i, tmp_offset = 0;
1226 GSList *match_list = NULL;
1228 const size_t pattern_num = sizeof(patterns)/sizeof(url_match_pattern_t);
1230 /* initalize the regexps */
1231 modest_text_utils_hyperlinkify_begin ();
1233 /* find all the matches */
1234 for (i = 0; i != pattern_num; ++i) {
1235 tmp_offset = offset;
1238 gboolean is_submatch;
1241 if ((rv = regexec (patterns[i].preg, txt->str + tmp_offset, 1, &rm, 0)) != 0) {
1242 g_return_val_if_fail (rv == REG_NOMATCH, NULL); /* this should not happen */
1243 break; /* try next regexp */
1248 is_submatch = FALSE;
1249 /* check old matches to see if this has already been matched */
1250 cursor = match_list;
1251 while (cursor && !is_submatch) {
1252 const url_match_t *old_match =
1253 (const url_match_t *) cursor->data;
1254 guint new_offset = tmp_offset + rm.rm_so;
1255 is_submatch = (new_offset > old_match->offset &&
1256 new_offset < old_match->offset + old_match->len);
1257 cursor = g_slist_next (cursor);
1261 /* make a list of our matches (<offset, len, prefix> tupels)*/
1262 match = g_slice_new (url_match_t);
1263 match->offset = tmp_offset + rm.rm_so;
1264 match->len = rm.rm_eo - rm.rm_so;
1265 match->prefix = patterns[i].prefix;
1266 match_list = g_slist_prepend (match_list, match);
1268 tmp_offset += rm.rm_eo;
1272 modest_text_utils_hyperlinkify_end ();
1274 /* now sort the list, so the matches are in reverse order of occurence.
1275 * that way, we can do the replacements starting from the end, so we don't need
1276 * to recalculate the offsets
1278 match_list = g_slist_sort (match_list,
1279 (GCompareFunc)cmp_offsets_reverse);
1285 /* replace all occurences of needle in haystack with repl*/
1287 replace_string (const gchar *haystack, const gchar *needle, gchar repl)
1289 gchar *str, *cursor;
1291 if (!haystack || !needle || strlen(needle) == 0)
1292 return haystack ? g_strdup(haystack) : NULL;
1294 str = g_strdup (haystack);
1296 for (cursor = str; cursor && *cursor; ++cursor) {
1297 if (g_str_has_prefix (cursor, needle)) {
1299 memmove (cursor + 1,
1300 cursor + strlen (needle),
1301 strlen (cursor + strlen (needle)) + 1);
1309 hyperlinkify_plain_text (GString *txt, gint offset)
1312 GSList *match_list = get_url_matches (txt, offset);
1314 /* we will work backwards, so the offsets stay valid */
1315 for (cursor = match_list; cursor; cursor = cursor->next) {
1317 url_match_t *match = (url_match_t*) cursor->data;
1318 gchar *url = g_strndup (txt->str + match->offset, match->len);
1319 gchar *repl = NULL; /* replacement */
1321 /* the string still contains $(MARK_AMP_URI_STR)"amp;" for each
1322 * '&' in the original, because of the text->html conversion.
1323 * in the href-URL (and only there), we must convert that back to
1326 gchar *href_url = replace_string (url, MARK_AMP_URI_STR "amp;", '&');
1328 /* the prefix is NULL: use the one that is already there */
1329 repl = g_strdup_printf ("<a href=\"%s%s\">%s</a>",
1330 match->prefix ? match->prefix : EMPTY_STRING,
1333 /* replace the old thing with our hyperlink
1334 * replacement thing */
1335 g_string_erase (txt, match->offset, match->len);
1336 g_string_insert (txt, match->offset, repl);
1342 g_slice_free (url_match_t, match);
1345 g_slist_free (match_list);
1349 modest_text_utils_hyperlinkify (GString *string_buffer)
1354 after_body = strstr (string_buffer->str, "<body>");
1355 if (after_body != NULL)
1356 offset = after_body - string_buffer->str;
1357 hyperlinkify_plain_text (string_buffer, offset);
1361 /* for optimization reasons, we change the string in-place */
1363 modest_text_utils_get_display_address (gchar *address)
1367 g_return_if_fail (address);
1372 /* should not be needed, and otherwise, we probably won't screw up the address
1373 * more than it already is :)
1374 * g_return_val_if_fail (g_utf8_validate (address, -1, NULL), NULL);
1377 /* remove leading whitespace */
1378 if (address[0] == ' ')
1379 g_strchug (address);
1381 for (i = 0; address[i]; ++i) {
1382 if (address[i] == '<') {
1383 if (G_UNLIKELY(i == 0)) {
1384 break; /* there's nothing else, leave it */
1386 address[i] = '\0'; /* terminate the string here */
1392 g_strchomp (address);
1397 modest_text_utils_get_display_addresses (const gchar *recipients)
1400 GSList *recipient_list;
1403 recipient_list = modest_text_utils_split_addresses_list (recipients);
1404 if (recipient_list) {
1405 GString *add_string = g_string_sized_new (strlen (recipients));
1406 GSList *iter = recipient_list;
1407 gboolean first = TRUE;
1410 /* Strings are changed in place */
1411 modest_text_utils_get_display_address ((gchar *) iter->data);
1412 if (G_UNLIKELY (first)) {
1413 g_string_append_printf (add_string, "%s", (gchar *) iter->data);
1416 g_string_append_printf (add_string, ", %s", (gchar *) iter->data);
1418 iter = g_slist_next (iter);
1420 g_slist_foreach (recipient_list, (GFunc) g_free, NULL);
1421 g_slist_free (recipient_list);
1422 addresses = g_string_free (add_string, FALSE);
1430 modest_text_utils_get_email_address (const gchar *full_address)
1432 const gchar *left, *right;
1434 g_return_val_if_fail (full_address, NULL);
1439 g_return_val_if_fail (g_utf8_validate (full_address, -1, NULL), NULL);
1441 left = g_strrstr_len (full_address, strlen(full_address), "<");
1443 return g_strdup (full_address);
1445 right = g_strstr_len (left, strlen(left), ">");
1447 return g_strdup (full_address);
1449 return g_strndup (left + 1, right - left - 1);
1453 modest_text_utils_get_subject_prefix_len (const gchar *sub)
1455 gint prefix_len = 0;
1457 g_return_val_if_fail (sub, 0);
1462 /* optimization: "Re", "RE", "re","Fwd", "FWD", "fwd","FW","Fw", "fw" */
1463 if (sub[0] != 'R' && sub[0] != 'F' && sub[0] != 'r' && sub[0] != 'f')
1465 else if (sub[0] && sub[1] != 'e' && sub[1] != 'E' && sub[1] != 'w' && sub[1] != 'W')
1472 /* skip over a [...] block */
1473 if (sub[prefix_len] == '[') {
1474 int c = prefix_len + 1;
1475 while (sub[c] && sub[c] != ']')
1478 return 0; /* no end to the ']' found */
1483 /* did we find the ':' ? */
1484 if (sub[prefix_len] == ':') {
1486 if (sub[prefix_len] == ' ')
1488 prefix_len += modest_text_utils_get_subject_prefix_len (sub + prefix_len);
1489 /* g_warning ("['%s','%s']", sub, (char*) sub + prefix_len); */
1497 modest_text_utils_utf8_strcmp (const gchar* s1, const gchar *s2, gboolean insensitive)
1500 /* work even when s1 and/or s2 == NULL */
1501 if (G_UNLIKELY(s1 == s2))
1503 if (G_UNLIKELY(!s1))
1505 if (G_UNLIKELY(!s2))
1508 /* if it's not case sensitive */
1511 /* optimization: shortcut if first char is ascii */
1512 if (((s1[0] & 0x80)== 0) && ((s2[0] & 0x80) == 0) &&
1514 return s1[0] - s2[0];
1516 return g_utf8_collate (s1, s2);
1522 /* optimization: shortcut if first char is ascii */
1523 if (((s1[0] & 0x80) == 0) && ((s2[0] & 0x80) == 0) &&
1524 (tolower(s1[0]) != tolower (s2[0])))
1525 return tolower(s1[0]) - tolower(s2[0]);
1527 n1 = g_utf8_strdown (s1, -1);
1528 n2 = g_utf8_strdown (s2, -1);
1530 result = g_utf8_collate (n1, n2);
1541 modest_text_utils_get_display_date (time_t date)
1543 #define DATE_BUF_SIZE 64
1544 static gchar date_buf[DATE_BUF_SIZE];
1546 /* calculate the # of days since epoch for
1547 * for today and for the date provided
1548 * based on idea from pvanhoof */
1549 int day = time(NULL) / (24 * 60 * 60);
1550 int date_day = date / (24 * 60 * 60);
1552 /* if it's today, show the time, if it's not today, show the date instead */
1554 /* TODO: take into account the system config for 24/12h */
1555 #ifdef MODEST_TOOLKIT_HILDON2
1556 if (day == date_day) /* is the date today? */
1557 modest_text_utils_strftime (date_buf, DATE_BUF_SIZE, _HL("wdgt_va_24h_time"), date);
1559 modest_text_utils_strftime (date_buf, DATE_BUF_SIZE, _HL("wdgt_va_date"), date);
1561 if (day == date_day) /* is the date today? */
1562 modest_text_utils_strftime (date_buf, DATE_BUF_SIZE, "%X", date);
1564 modest_text_utils_strftime (date_buf, DATE_BUF_SIZE, "%x", date);
1567 return date_buf; /* this is a static buffer, don't free! */
1573 modest_text_utils_validate_folder_name (const gchar *folder_name)
1575 /* based on http://msdn2.microsoft.com/en-us/library/aa365247.aspx,
1576 * with some extras */
1580 const gchar **cursor = NULL;
1581 const gchar *forbidden_names[] = { /* windows does not like these */
1582 "CON", "PRN", "AUX", "NUL", ".", "..", "cur", "tmp", "new",
1583 NULL /* cur, tmp, new are reserved for Maildir */
1586 /* cannot be NULL */
1590 /* cannot be empty */
1591 len = strlen(folder_name);
1595 /* cannot start with a dot, vfat does not seem to like that */
1596 if (folder_name[0] == '.')
1599 /* cannot start or end with a space */
1600 if (g_ascii_isspace(folder_name[0]) || g_ascii_isspace(folder_name[len - 1]))
1603 /* cannot contain a forbidden char */
1604 for (i = 0; i < len; i++)
1605 if (modest_text_utils_is_forbidden_char (folder_name[i], FOLDER_NAME_FORBIDDEN_CHARS))
1608 /* Cannot contain Windows port numbers. I'd like to use GRegex
1609 but it's still not available in Maemo. sergio */
1610 if (!g_ascii_strncasecmp (folder_name, "LPT", 3) ||
1611 !g_ascii_strncasecmp (folder_name, "COM", 3)) {
1615 /* We skip the first 3 characters for the
1617 val = strtol(folder_name+3, &endptr, 10);
1619 /* If the conversion to long succeeded then the string
1620 is not valid for us */
1621 if (*endptr == '\0')
1627 /* cannot contain a forbidden word */
1629 for (cursor = forbidden_names; cursor && *cursor; ++cursor) {
1630 if (g_ascii_strcasecmp (folder_name, *cursor) == 0)
1635 return TRUE; /* it's valid! */
1641 modest_text_utils_validate_domain_name (const gchar *domain)
1643 gboolean valid = FALSE;
1645 const gchar* domain_regex = "^([a-z0-9-]*[a-z0-9]\\.)+[a-z0-9-]*[a-z0-9]$";
1647 g_return_val_if_fail (domain, FALSE);
1652 memset (&rx, 0, sizeof(regex_t)); /* coverity wants this... */
1654 /* domain name: all alphanum or '-' or '.',
1655 * but beginning/ending in alphanum */
1656 if (regcomp (&rx, domain_regex, REG_ICASE|REG_EXTENDED|REG_NOSUB)) {
1657 g_warning ("BUG: error in regexp");
1661 valid = (regexec (&rx, domain, 1, NULL, 0) == 0);
1670 modest_text_utils_validate_email_address (const gchar *email_address,
1671 const gchar **invalid_char_position)
1674 const gchar *c = NULL, *domain = NULL;
1675 static gchar *rfc822_specials = "()<>@,;:\\\"[]&";
1677 if (invalid_char_position)
1678 *invalid_char_position = NULL;
1680 g_return_val_if_fail (email_address, FALSE);
1682 /* check that the email adress contains exactly one @ */
1683 if (!strstr(email_address, "@") ||
1684 (strstr(email_address, "@") != g_strrstr(email_address, "@")))
1687 /* first we validate the name portion (name@domain) */
1688 for (c = email_address; *c; c++) {
1690 (c == email_address ||
1692 *(c - 1) == '\"')) {
1696 if (*c == '\\' && (*++c == ' '))
1698 if (*c <= ' ' || *c >= 127)
1711 if (*c <= ' ' || *c >= 127)
1713 if (strchr(rfc822_specials, *c)) {
1714 if (invalid_char_position)
1715 *invalid_char_position = c;
1719 if (c == email_address || *(c - 1) == '.')
1722 /* next we validate the domain portion (name@domain) */
1723 if (!*(domain = ++c))
1727 if (c == domain || *(c - 1) == '.' || *(c + 1) == '\0')
1731 if (*c <= ' ' || *c >= 127)
1733 if (strchr(rfc822_specials, *c)) {
1734 if (invalid_char_position)
1735 *invalid_char_position = c;
1740 return (count >= 1) ? TRUE : FALSE;
1744 modest_text_utils_validate_recipient (const gchar *recipient, const gchar **invalid_char_position)
1746 gchar *stripped, *current;
1748 gboolean has_error = FALSE;
1750 if (invalid_char_position)
1751 *invalid_char_position = NULL;
1753 g_return_val_if_fail (recipient, FALSE);
1755 if (modest_text_utils_validate_email_address (recipient, invalid_char_position))
1758 stripped = g_strdup (recipient);
1759 stripped = g_strstrip (stripped);
1762 if (*current == '\0') {
1768 if (*current == '\"') {
1769 gchar *last_quote = NULL;
1770 current = g_utf8_next_char (current);
1772 for (; *current != '\0'; current = g_utf8_next_char (current)) {
1773 if (*current == '\\') {
1774 /* TODO: This causes a warning, which breaks the build,
1775 * because a gchar cannot be < 0.
1777 if (current[1] <0) {
1782 } else if (*current == '\"') {
1784 current = g_utf8_next_char (current);
1785 last_quote = current;
1789 current = g_utf8_next_char (last_quote);
1792 for (current = stripped ; *current != '\0'; current = g_utf8_next_char (current)) {
1793 if (*current == '<') {
1805 right_part = g_strdup (current);
1807 right_part = g_strstrip (right_part);
1809 if (g_str_has_suffix (right_part, ",") || g_str_has_suffix (right_part, ";"))
1810 right_part [(strlen (right_part) - 1)] = '\0';
1812 if (g_str_has_prefix (right_part, "<") &&
1813 g_str_has_suffix (right_part, ">")) {
1817 address = g_strndup (right_part+1, strlen (right_part) - 2);
1818 g_free (right_part);
1819 valid = modest_text_utils_validate_email_address (address, invalid_char_position);
1823 g_free (right_part);
1830 modest_text_utils_get_display_size (guint64 size)
1832 const guint KB=1024;
1833 const guint MB=1024 * KB;
1834 const guint GB=1024 * MB;
1837 return g_strdup_printf (_FM_SIZE_KB, (int) 0);
1838 if (0 <= size && size < KB)
1839 return g_strdup_printf (_FM_SIZE_1KB_99KB, (int) 1);
1840 else if (KB <= size && size < 100 * KB)
1841 return g_strdup_printf (_FM_SIZE_1KB_99KB, (int) size / KB);
1842 else if (100*KB <= size && size < MB)
1843 return g_strdup_printf (_FM_SIZE_100KB_1MB, (int) size / KB);
1844 else if (MB <= size && size < 10*MB)
1845 return g_strdup_printf (_FM_SIZE_1MB_10MB, (float) size / MB);
1846 else if (10*MB <= size && size < GB)
1847 return g_strdup_printf (_FM_SIZE_10MB_1GB, (float) size / MB);
1849 return g_strdup_printf (_FM_SIZE_1GB_OR_GREATER, (float) size / GB);
1853 get_email_from_address (const gchar * address)
1855 gchar *left_limit, *right_limit;
1857 left_limit = strstr (address, "<");
1858 right_limit = g_strrstr (address, ">");
1860 if ((left_limit == NULL)||(right_limit == NULL)|| (left_limit > right_limit))
1861 return g_strdup (address);
1863 return g_strndup (left_limit + 1, (right_limit - left_limit) - 1);
1867 modest_text_utils_get_color_string (GdkColor *color)
1869 g_return_val_if_fail (color, NULL);
1871 return g_strdup_printf ("#%x%x%x%x%x%x%x%x%x%x%x%x",
1872 (color->red >> 12) & 0xf, (color->red >> 8) & 0xf,
1873 (color->red >> 4) & 0xf, (color->red) & 0xf,
1874 (color->green >> 12) & 0xf, (color->green >> 8) & 0xf,
1875 (color->green >> 4) & 0xf, (color->green) & 0xf,
1876 (color->blue >> 12) & 0xf, (color->blue >> 8) & 0xf,
1877 (color->blue >> 4) & 0xf, (color->blue) & 0xf);
1881 modest_text_utils_text_buffer_get_text (GtkTextBuffer *buffer)
1883 GtkTextIter start, end;
1884 gchar *slice, *current;
1885 GString *result = g_string_new ("");
1887 g_return_val_if_fail (buffer && GTK_IS_TEXT_BUFFER (buffer), NULL);
1889 gtk_text_buffer_get_start_iter (buffer, &start);
1890 gtk_text_buffer_get_end_iter (buffer, &end);
1892 slice = gtk_text_buffer_get_slice (buffer, &start, &end, FALSE);
1895 while (current && current != '\0') {
1896 if (g_utf8_get_char (current) == 0xFFFC) {
1897 result = g_string_append_c (result, ' ');
1898 current = g_utf8_next_char (current);
1900 gchar *next = g_utf8_strchr (current, -1, 0xFFFC);
1902 result = g_string_append (result, current);
1904 result = g_string_append_len (result, current, next - current);
1911 return g_string_free (result, FALSE);
1916 modest_text_utils_is_forbidden_char (const gchar character,
1917 ModestTextUtilsForbiddenCharType type)
1920 const gchar *forbidden_chars = NULL;
1922 /* We need to get the length in the switch because the
1923 compiler needs to know the size at compile time */
1925 case ACCOUNT_TITLE_FORBIDDEN_CHARS:
1926 forbidden_chars = account_title_forbidden_chars;
1927 len = G_N_ELEMENTS (account_title_forbidden_chars);
1929 case FOLDER_NAME_FORBIDDEN_CHARS:
1930 forbidden_chars = folder_name_forbidden_chars;
1931 len = G_N_ELEMENTS (folder_name_forbidden_chars);
1933 case USER_NAME_FORBIDDEN_NAMES:
1934 forbidden_chars = user_name_forbidden_chars;
1935 len = G_N_ELEMENTS (user_name_forbidden_chars);
1938 g_return_val_if_reached (TRUE);
1941 for (i = 0; i < len ; i++)
1942 if (forbidden_chars[i] == character)
1945 return FALSE; /* it's valid! */
1949 modest_text_utils_label_get_selection (GtkLabel *label)
1954 if (gtk_label_get_selection_bounds (GTK_LABEL (label), &start, &end)) {
1955 const gchar *start_offset;
1956 const gchar *end_offset;
1957 start_offset = gtk_label_get_text (GTK_LABEL (label));
1958 start_offset = g_utf8_offset_to_pointer (start_offset, start);
1959 end_offset = gtk_label_get_text (GTK_LABEL (label));
1960 end_offset = g_utf8_offset_to_pointer (end_offset, end);
1961 selection = g_strndup (start_offset, end_offset - start_offset);
1964 return g_strdup ("");
1969 _forward_search_image_char (gunichar ch,
1972 return (ch == 0xFFFC);
1976 modest_text_utils_buffer_selection_is_valid (GtkTextBuffer *buffer)
1979 GtkTextIter start, end;
1981 g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), FALSE);
1983 result = gtk_text_buffer_get_has_selection (GTK_TEXT_BUFFER (buffer));
1985 /* check there are no images in selection */
1987 gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
1988 if (gtk_text_iter_get_char (&start)== 0xFFFC)
1991 gtk_text_iter_backward_char (&end);
1992 if (gtk_text_iter_forward_find_char (&start, _forward_search_image_char,
2003 remove_quotes (gchar **quotes)
2005 if (g_str_has_prefix (*quotes, "\"") && g_str_has_suffix (*quotes, "\"")) {
2007 result = g_strndup ((*quotes)+1, strlen (*quotes) - 2);
2014 remove_extra_spaces (gchar *string)
2019 while (start && start[0] != '\0') {
2020 if ((start[0] == ' ') && (start[1] == ' ')) {
2021 g_strchug (start+1);
2028 modest_text_utils_escape_mnemonics (const gchar *text)
2031 GString *result = NULL;
2036 result = g_string_new ("");
2037 for (p = text; *p != '\0'; p++) {
2039 result = g_string_append (result, "__");
2041 result = g_string_append_c (result, *p);
2044 return g_string_free (result, FALSE);
2048 modest_text_utils_simplify_recipients (const gchar *recipients)
2050 GSList *addresses, *node;
2052 gboolean is_first = TRUE;
2054 if (recipients == NULL)
2055 return g_strdup ("");
2057 addresses = modest_text_utils_split_addresses_list (recipients);
2058 result = g_string_new ("");
2060 for (node = addresses; node != NULL; node = g_slist_next (node)) {
2061 const gchar *address = (const gchar *) node->data;
2062 gchar *left_limit, *right_limit;
2064 left_limit = strstr (address, "<");
2065 right_limit = g_strrstr (address, ">");
2070 result = g_string_append (result, ", ");
2072 if ((left_limit == NULL)||(right_limit == NULL)|| (left_limit > right_limit)) {
2073 result = g_string_append (result, address);
2077 name_side = g_strndup (address, left_limit - address);
2078 name_side = g_strstrip (name_side);
2079 remove_quotes (&name_side);
2080 email_side = get_email_from_address (address);
2081 if (name_side && email_side && !strcmp (name_side, email_side)) {
2082 result = g_string_append (result, email_side);
2084 result = g_string_append (result, address);
2087 g_free (email_side);
2091 g_slist_foreach (addresses, (GFunc)g_free, NULL);
2092 g_slist_free (addresses);
2094 return g_string_free (result, FALSE);
2099 modest_text_utils_remove_duplicate_addresses_list (GSList *address_list)
2101 GSList *new_list, *iter;
2104 g_return_val_if_fail (address_list, NULL);
2106 table = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
2108 new_list = address_list;
2109 iter = address_list;
2111 const gchar* address = (const gchar*)iter->data;
2113 /* We need only the email to just compare it and not
2114 the full address which would make "a <a@a.com>"
2115 different from "a@a.com" */
2116 const gchar *email = get_email_from_address (address);
2118 /* ignore the address if already seen */
2119 if (g_hash_table_lookup (table, email) == 0) {
2120 g_hash_table_insert (table, (gchar*)email, GINT_TO_POINTER(1));
2121 iter = g_slist_next (iter);
2123 GSList *tmp = g_slist_next (iter);
2124 new_list = g_slist_delete_link (new_list, iter);
2129 g_hash_table_unref (table);
2135 modest_text_utils_get_secure_header (const gchar *value,
2136 const gchar *header)
2138 const gint max_len = 16384;
2139 gchar *new_value = NULL;
2140 gchar *needle = g_strrstr (value, header);
2142 if (needle && value != needle)
2143 new_value = g_strdup (needle + strlen (header));
2146 new_value = g_strdup (value);
2148 /* Do a max length check to prevent DoS attacks caused by huge
2149 malformed headers */
2150 if (g_utf8_validate (new_value, -1, NULL)) {
2151 if (g_utf8_strlen (new_value, -1) > max_len) {
2152 gchar *tmp = g_malloc0 (max_len * 4);
2153 g_utf8_strncpy (tmp, (const gchar *) new_value, max_len);
2158 if (strlen (new_value) > max_len) {
2159 gchar *tmp = g_malloc0 (max_len);
2160 strncpy (new_value, tmp, max_len);
2170 is_quoted (const char *start, const gchar *end)
2174 c = (gchar *) start;
2176 c = g_utf8_next_char (c);
2178 if (*c == '\0' || *c != '\"')
2182 while (*c == ' ' && c != start)
2183 c = g_utf8_prev_char (c);
2185 if (c == start || *c != '\"')
2193 quote_name_part (GString **str, gchar **cur, gchar **start)
2196 gint str_len = *cur - *start;
2198 while (**start == ' ') {
2199 *start = g_utf8_next_char (*start);
2203 blank = g_utf8_strrchr (*start, str_len, g_utf8_get_char (" "));
2204 if (blank && (blank != *start)) {
2205 if (is_quoted (*start, blank - 1)) {
2206 *str = g_string_append_len (*str, *start, str_len);
2207 *str = g_string_append (*str, ";");
2208 *start = g_utf8_next_char (*cur);
2210 *str = g_string_append_c (*str, '"');
2211 *str = g_string_append_len (*str, *start,
2212 (g_utf8_pointer_to_offset (*start, blank) -
2213 g_utf8_pointer_to_offset (*start, *start)));
2214 *str = g_string_append_c (*str, '"');
2215 *str = g_string_append_len (*str, blank,
2216 (g_utf8_pointer_to_offset (*start, *cur) -
2217 g_utf8_pointer_to_offset (*start, blank)));
2218 *str = g_string_append (*str, ";");
2219 *start = g_utf8_next_char (*cur);
2222 *str = g_string_append_len (*str, *start, str_len);
2223 *str = g_string_append (*str, ";");
2224 *start = g_utf8_next_char (*cur);
2229 modest_text_utils_quote_names (const gchar *recipients)
2234 str = g_string_new ("");
2235 start = (gchar*) recipients;
2236 cur = (gchar*) recipients;
2238 for (cur = start; *cur != '\0'; cur = g_utf8_next_char (cur)) {
2239 if (*cur == ',' || *cur == ';') {
2240 if (!g_utf8_strchr (start, (cur - start + 1), g_utf8_get_char ("@")))
2242 quote_name_part (&str, &cur, &start);
2246 quote_name_part (&str, &cur, &start);
2248 return g_string_free (str, FALSE);