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 if (2*indent >= limit)
947 indent = indent < 0 ? abs (indent) - 1 : indent;
951 uni = g_utf8_to_ucs4_fast (s, -1, NULL);
953 if ((index + 2 * indent > limit) && last) {
957 if (g_unichar_isspace (uni[index])) {
960 pos = g_utf8_next_char (pos);
968 get_breakpoint_ascii (const gchar * s, const gint indent, const gint limit)
973 if (last + 2 * indent < limit)
976 for (i = strlen (s); i > 0; i--) {
978 if (i + 2 * indent <= limit) {
989 get_breakpoint (const gchar * s, const gint indent, const gint limit)
992 if (g_utf8_validate (s, -1, NULL)) {
993 return get_breakpoint_utf8 (s, indent, limit);
994 } else { /* assume ASCII */
995 //g_warning("invalid UTF-8 in msg");
996 return get_breakpoint_ascii (s, indent, limit);
1001 cite (const time_t sent_date, const gchar *from)
1003 return g_strdup (_("mcen_ia_editor_original_message"));
1007 quoted_attachments (GList *attachments)
1010 GString *result = g_string_new ("");
1011 for (node = attachments; node != NULL; node = g_list_next (node)) {
1012 gchar *filename = (gchar *) node->data;
1013 g_string_append_printf ( result, "%s %s\n", _("mcen_ia_editor_attach_filename"), filename);
1016 return g_string_free (result, FALSE);
1021 modest_text_utils_quote_body (GString *output, const gchar *text,
1022 const gchar *quote_symbol,
1028 gint indent, breakpoint, rem_indent = 0;
1029 GString *l, *remaining;
1030 gchar *forced_wrap_append;
1034 remaining = g_string_new ("");
1035 forced_wrap_append = NULL;
1038 if (forced_wrap_append) {
1039 gint next_line_indent;
1040 gint l_len_with_indent;
1042 g_string_erase (remaining, 0, -1);
1043 next_line_indent = get_indent_level (iter);
1044 l = get_next_line (text, len, iter);
1045 l_len_with_indent = l->len;
1046 unquote_line (l, quote_symbol);
1047 if ((l->str && l->str[0] == '\0') || (next_line_indent != indent)) {
1048 g_string_free (l, TRUE);
1049 l = g_string_new (forced_wrap_append);
1051 gunichar first_in_l;
1052 iter = iter + l_len_with_indent + 1;
1053 first_in_l = g_utf8_get_char_validated (l->str, l->len);
1054 if (!g_unichar_isspace (first_in_l))
1055 l = g_string_prepend (l, " ");
1056 l = g_string_prepend (l, forced_wrap_append);
1058 g_free (forced_wrap_append);
1059 forced_wrap_append = NULL;
1061 l = get_next_line (text, len, iter);
1062 iter = iter + l->len + 1;
1063 indent = get_indent_level (l->str);
1064 unquote_line (l, quote_symbol);
1067 if (remaining->len) {
1068 if (l->len && indent == rem_indent) {
1069 g_string_prepend (l, " ");
1070 g_string_prepend (l, remaining->str);
1073 gunichar remaining_first;
1075 get_breakpoint (remaining->str,
1078 if (breakpoint < remaining->len) {
1079 g_free (forced_wrap_append);
1080 forced_wrap_append = g_strdup (remaining->str + breakpoint);
1082 if (!forced_wrap_append)
1083 append_quoted (output, quote_symbol, rem_indent,
1084 remaining, breakpoint);
1086 g_string_erase (remaining, 0,
1088 remaining_first = g_utf8_get_char_validated (remaining->str, remaining->len);
1089 if (remaining_first != ((gunichar) -1)) {
1090 if (g_unichar_isspace (remaining_first)) {
1091 g_string_erase (remaining, 0, g_utf8_next_char (remaining->str) - remaining->str);
1094 } while (remaining->len);
1097 g_string_free (remaining, TRUE);
1098 breakpoint = get_breakpoint (l->str, indent, limit);
1099 remaining = g_string_new (l->str + breakpoint);
1100 if (remaining->str[0] == ' ') {
1101 g_string_erase (remaining, 0, 1);
1103 rem_indent = indent;
1104 if (remaining->len > 0) {
1105 g_free (forced_wrap_append);
1106 forced_wrap_append = g_strdup (remaining->str);
1108 append_quoted (output, quote_symbol, indent, l, breakpoint);
1109 g_string_free (l, TRUE);
1110 } while ((iter < text + len) || (remaining->str[0]) || forced_wrap_append);
1116 modest_text_utils_quote_plain_text (const gchar *text,
1118 const gchar *signature,
1123 gchar *attachments_string = NULL;
1125 q = g_string_new ("");
1127 if (signature != NULL) {
1128 g_string_append_printf (q, "\n%s\n", MODEST_TEXT_UTILS_SIGNATURE_MARKER);
1129 q = g_string_append (q, signature);
1132 q = g_string_append (q, "\n");
1133 q = g_string_append (q, cite);
1134 q = g_string_append_c (q, '\n');
1136 q = modest_text_utils_quote_body (q, text, ">", limit);
1138 attachments_string = quoted_attachments (attachments);
1139 q = g_string_append (q, attachments_string);
1140 g_free (attachments_string);
1142 return g_string_free (q, FALSE);
1146 quote_html_add_to_gstring (GString *string,
1149 if (text && strcmp (text, "")) {
1150 gchar *html_text = modest_text_utils_convert_to_html_body (text, -1, TRUE);
1151 g_string_append_printf (string, "%s<br/>", html_text);
1157 modest_text_utils_quote_html (const gchar *text,
1159 const gchar *signature,
1163 GString *result_string;
1167 "<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">\n" \
1171 if (text || cite || signature) {
1172 GString *quoted_text;
1173 g_string_append (result_string, "<pre>\n");
1175 quote_html_add_to_gstring (result_string, MODEST_TEXT_UTILS_SIGNATURE_MARKER);
1176 quote_html_add_to_gstring (result_string, signature);
1178 quote_html_add_to_gstring (result_string, cite);
1179 quoted_text = g_string_new ("");
1180 quoted_text = modest_text_utils_quote_body (quoted_text, (text) ? text : "", ">", limit);
1181 quote_html_add_to_gstring (result_string, quoted_text->str);
1182 g_string_free (quoted_text, TRUE);
1184 gchar *attachments_string = quoted_attachments (attachments);
1185 quote_html_add_to_gstring (result_string, attachments_string);
1186 g_free (attachments_string);
1188 g_string_append (result_string, "</pre>");
1190 g_string_append (result_string, "</body>");
1191 g_string_append (result_string, "</html>");
1193 return g_string_free (result_string, FALSE);
1197 cmp_offsets_reverse (const url_match_t *match1, const url_match_t *match2)
1199 return match2->offset - match1->offset;
1202 static gint url_matches_block = 0;
1203 static url_match_pattern_t patterns[] = MAIL_VIEWER_URL_MATCH_PATTERNS;
1204 static GMutex *url_patterns_mutex = NULL;
1211 const size_t pattern_num = sizeof(patterns)/sizeof(url_match_pattern_t);
1212 for (i = 0; i != pattern_num; ++i) {
1213 patterns[i].preg = g_slice_new0 (regex_t);
1215 /* this should not happen */
1216 if (regcomp (patterns[i].preg, patterns[i].regex,
1217 REG_ICASE|REG_EXTENDED|REG_NEWLINE) != 0) {
1218 g_warning ("%s: error in regexp:\n%s\n", __FUNCTION__, patterns[i].regex);
1229 const size_t pattern_num = sizeof(patterns)/sizeof(url_match_pattern_t);
1230 for (i = 0; i != pattern_num; ++i) {
1231 regfree (patterns[i].preg);
1232 g_slice_free (regex_t, patterns[i].preg);
1233 } /* don't free patterns itself -- it's static */
1237 modest_text_utils_hyperlinkify_begin (void)
1240 if (url_patterns_mutex == NULL) {
1241 url_patterns_mutex = g_mutex_new ();
1243 g_mutex_lock (url_patterns_mutex);
1244 if (url_matches_block == 0)
1245 compile_patterns ();
1246 url_matches_block ++;
1247 g_mutex_unlock (url_patterns_mutex);
1251 modest_text_utils_hyperlinkify_end (void)
1253 g_mutex_lock (url_patterns_mutex);
1254 url_matches_block--;
1255 if (url_matches_block <= 0)
1257 g_mutex_unlock (url_patterns_mutex);
1262 get_url_matches (GString *txt, gint offset)
1265 guint rv, i, tmp_offset = 0;
1266 GSList *match_list = NULL;
1268 const size_t pattern_num = sizeof(patterns)/sizeof(url_match_pattern_t);
1270 /* initalize the regexps */
1271 modest_text_utils_hyperlinkify_begin ();
1273 /* find all the matches */
1274 for (i = 0; i != pattern_num; ++i) {
1275 tmp_offset = offset;
1278 gboolean is_submatch;
1281 if ((rv = regexec (patterns[i].preg, txt->str + tmp_offset, 1, &rm, 0)) != 0) {
1282 g_return_val_if_fail (rv == REG_NOMATCH, NULL); /* this should not happen */
1283 break; /* try next regexp */
1288 is_submatch = FALSE;
1289 /* check old matches to see if this has already been matched */
1290 cursor = match_list;
1291 while (cursor && !is_submatch) {
1292 const url_match_t *old_match =
1293 (const url_match_t *) cursor->data;
1294 guint new_offset = tmp_offset + rm.rm_so;
1295 is_submatch = (new_offset > old_match->offset &&
1296 new_offset < old_match->offset + old_match->len);
1297 cursor = g_slist_next (cursor);
1301 /* make a list of our matches (<offset, len, prefix> tupels)*/
1302 match = g_slice_new (url_match_t);
1303 match->offset = tmp_offset + rm.rm_so;
1304 match->len = rm.rm_eo - rm.rm_so;
1305 match->prefix = patterns[i].prefix;
1306 match_list = g_slist_prepend (match_list, match);
1308 tmp_offset += rm.rm_eo;
1312 modest_text_utils_hyperlinkify_end ();
1314 /* now sort the list, so the matches are in reverse order of occurence.
1315 * that way, we can do the replacements starting from the end, so we don't need
1316 * to recalculate the offsets
1318 match_list = g_slist_sort (match_list,
1319 (GCompareFunc)cmp_offsets_reverse);
1325 /* replace all occurences of needle in haystack with repl*/
1327 replace_string (const gchar *haystack, const gchar *needle, gchar repl)
1329 gchar *str, *cursor;
1331 if (!haystack || !needle || strlen(needle) == 0)
1332 return haystack ? g_strdup(haystack) : NULL;
1334 str = g_strdup (haystack);
1336 for (cursor = str; cursor && *cursor; ++cursor) {
1337 if (g_str_has_prefix (cursor, needle)) {
1339 memmove (cursor + 1,
1340 cursor + strlen (needle),
1341 strlen (cursor + strlen (needle)) + 1);
1349 hyperlinkify_plain_text (GString *txt, gint offset)
1352 GSList *match_list = get_url_matches (txt, offset);
1354 /* we will work backwards, so the offsets stay valid */
1355 for (cursor = match_list; cursor; cursor = cursor->next) {
1357 url_match_t *match = (url_match_t*) cursor->data;
1358 gchar *url = g_strndup (txt->str + match->offset, match->len);
1359 gchar *repl = NULL; /* replacement */
1361 /* the string still contains $(MARK_AMP_URI_STR)"amp;" for each
1362 * '&' in the original, because of the text->html conversion.
1363 * in the href-URL (and only there), we must convert that back to
1366 gchar *href_url = replace_string (url, MARK_AMP_URI_STR "amp;", '&');
1368 /* the prefix is NULL: use the one that is already there */
1369 repl = g_strdup_printf ("<a href=\"%s%s\">%s</a>",
1370 match->prefix ? match->prefix : EMPTY_STRING,
1373 /* replace the old thing with our hyperlink
1374 * replacement thing */
1375 g_string_erase (txt, match->offset, match->len);
1376 g_string_insert (txt, match->offset, repl);
1382 g_slice_free (url_match_t, match);
1385 g_slist_free (match_list);
1389 modest_text_utils_hyperlinkify (GString *string_buffer)
1394 after_body = strstr (string_buffer->str, "<body>");
1395 if (after_body != NULL)
1396 offset = after_body - string_buffer->str;
1397 hyperlinkify_plain_text (string_buffer, offset);
1401 /* for optimization reasons, we change the string in-place */
1403 modest_text_utils_get_display_address (gchar *address)
1407 g_return_if_fail (address);
1412 /* should not be needed, and otherwise, we probably won't screw up the address
1413 * more than it already is :)
1414 * g_return_val_if_fail (g_utf8_validate (address, -1, NULL), NULL);
1417 /* remove leading whitespace */
1418 if (address[0] == ' ')
1419 g_strchug (address);
1421 for (i = 0; address[i]; ++i) {
1422 if (address[i] == '<') {
1423 if (G_UNLIKELY(i == 0)) {
1424 break; /* there's nothing else, leave it */
1426 address[i] = '\0'; /* terminate the string here */
1432 g_strchomp (address);
1437 modest_text_utils_get_display_addresses (const gchar *recipients)
1440 GSList *recipient_list;
1443 recipient_list = modest_text_utils_split_addresses_list (recipients);
1444 if (recipient_list) {
1445 GString *add_string = g_string_sized_new (strlen (recipients));
1446 GSList *iter = recipient_list;
1447 gboolean first = TRUE;
1450 /* Strings are changed in place */
1451 modest_text_utils_get_display_address ((gchar *) iter->data);
1452 if (G_UNLIKELY (first)) {
1453 g_string_append_printf (add_string, "%s", (gchar *) iter->data);
1456 g_string_append_printf (add_string, ", %s", (gchar *) iter->data);
1458 iter = g_slist_next (iter);
1460 g_slist_foreach (recipient_list, (GFunc) g_free, NULL);
1461 g_slist_free (recipient_list);
1462 addresses = g_string_free (add_string, FALSE);
1470 modest_text_utils_get_email_address (const gchar *full_address)
1472 const gchar *left, *right;
1474 g_return_val_if_fail (full_address, NULL);
1479 g_return_val_if_fail (g_utf8_validate (full_address, -1, NULL), NULL);
1481 left = g_strrstr_len (full_address, strlen(full_address), "<");
1483 return g_strdup (full_address);
1485 right = g_strstr_len (left, strlen(left), ">");
1487 return g_strdup (full_address);
1489 return g_strndup (left + 1, right - left - 1);
1493 modest_text_utils_get_subject_prefix_len (const gchar *sub)
1495 gint prefix_len = 0;
1497 g_return_val_if_fail (sub, 0);
1502 /* optimization: "Re", "RE", "re","Fwd", "FWD", "fwd","FW","Fw", "fw" */
1503 if (sub[0] != 'R' && sub[0] != 'F' && sub[0] != 'r' && sub[0] != 'f')
1505 else if (sub[0] && sub[1] != 'e' && sub[1] != 'E' && sub[1] != 'w' && sub[1] != 'W')
1512 /* skip over a [...] block */
1513 if (sub[prefix_len] == '[') {
1514 int c = prefix_len + 1;
1515 while (sub[c] && sub[c] != ']')
1518 return 0; /* no end to the ']' found */
1523 /* did we find the ':' ? */
1524 if (sub[prefix_len] == ':') {
1526 if (sub[prefix_len] == ' ')
1528 prefix_len += modest_text_utils_get_subject_prefix_len (sub + prefix_len);
1529 /* g_warning ("['%s','%s']", sub, (char*) sub + prefix_len); */
1537 modest_text_utils_utf8_strcmp (const gchar* s1, const gchar *s2, gboolean insensitive)
1540 /* work even when s1 and/or s2 == NULL */
1541 if (G_UNLIKELY(s1 == s2))
1543 if (G_UNLIKELY(!s1))
1545 if (G_UNLIKELY(!s2))
1548 /* if it's not case sensitive */
1551 /* optimization: shortcut if first char is ascii */
1552 if (((s1[0] & 0x80)== 0) && ((s2[0] & 0x80) == 0) &&
1554 return s1[0] - s2[0];
1556 return g_utf8_collate (s1, s2);
1562 /* optimization: shortcut if first char is ascii */
1563 if (((s1[0] & 0x80) == 0) && ((s2[0] & 0x80) == 0) &&
1564 (tolower(s1[0]) != tolower (s2[0])))
1565 return tolower(s1[0]) - tolower(s2[0]);
1567 n1 = g_utf8_strdown (s1, -1);
1568 n2 = g_utf8_strdown (s2, -1);
1570 result = g_utf8_collate (n1, n2);
1581 modest_text_utils_get_display_date (time_t date)
1583 #define DATE_BUF_SIZE 64
1584 static gchar date_buf[DATE_BUF_SIZE];
1586 /* calculate the # of days since epoch for
1587 * for today and for the date provided
1588 * based on idea from pvanhoof */
1589 int day = time(NULL) / (24 * 60 * 60);
1590 int date_day = date / (24 * 60 * 60);
1592 /* if it's today, show the time, if it's not today, show the date instead */
1594 /* TODO: take into account the system config for 24/12h */
1595 #ifdef MODEST_TOOLKIT_HILDON2
1596 if (day == date_day) /* is the date today? */
1597 modest_text_utils_strftime (date_buf, DATE_BUF_SIZE, _HL("wdgt_va_24h_time"), date);
1599 modest_text_utils_strftime (date_buf, DATE_BUF_SIZE, _HL("wdgt_va_date"), date);
1601 if (day == date_day) /* is the date today? */
1602 modest_text_utils_strftime (date_buf, DATE_BUF_SIZE, "%X", date);
1604 modest_text_utils_strftime (date_buf, DATE_BUF_SIZE, "%x", date);
1607 return date_buf; /* this is a static buffer, don't free! */
1613 modest_text_utils_validate_folder_name (const gchar *folder_name)
1615 /* based on http://msdn2.microsoft.com/en-us/library/aa365247.aspx,
1616 * with some extras */
1620 const gchar **cursor = NULL;
1621 const gchar *forbidden_names[] = { /* windows does not like these */
1622 "CON", "PRN", "AUX", "NUL", ".", "..", "cur", "tmp", "new",
1623 NULL /* cur, tmp, new are reserved for Maildir */
1626 /* cannot be NULL */
1630 /* cannot be empty */
1631 len = strlen(folder_name);
1635 /* cannot start with a dot, vfat does not seem to like that */
1636 if (folder_name[0] == '.')
1639 /* cannot start or end with a space */
1640 if (g_ascii_isspace(folder_name[0]) || g_ascii_isspace(folder_name[len - 1]))
1643 /* cannot contain a forbidden char */
1644 for (i = 0; i < len; i++)
1645 if (modest_text_utils_is_forbidden_char (folder_name[i], FOLDER_NAME_FORBIDDEN_CHARS))
1648 /* Cannot contain Windows port numbers. I'd like to use GRegex
1649 but it's still not available in Maemo. sergio */
1650 if (!g_ascii_strncasecmp (folder_name, "LPT", 3) ||
1651 !g_ascii_strncasecmp (folder_name, "COM", 3)) {
1655 /* We skip the first 3 characters for the
1657 val = strtol(folder_name+3, &endptr, 10);
1659 /* If the conversion to long succeeded then the string
1660 is not valid for us */
1661 if (*endptr == '\0')
1667 /* cannot contain a forbidden word */
1669 for (cursor = forbidden_names; cursor && *cursor; ++cursor) {
1670 if (g_ascii_strcasecmp (folder_name, *cursor) == 0)
1675 return TRUE; /* it's valid! */
1681 modest_text_utils_validate_domain_name (const gchar *domain)
1683 gboolean valid = FALSE;
1685 const gchar* domain_regex = "^([a-z0-9-]*[a-z0-9]\\.)+[a-z0-9-]*[a-z0-9]$";
1687 g_return_val_if_fail (domain, FALSE);
1692 memset (&rx, 0, sizeof(regex_t)); /* coverity wants this... */
1694 /* domain name: all alphanum or '-' or '.',
1695 * but beginning/ending in alphanum */
1696 if (regcomp (&rx, domain_regex, REG_ICASE|REG_EXTENDED|REG_NOSUB)) {
1697 g_warning ("BUG: error in regexp");
1701 valid = (regexec (&rx, domain, 1, NULL, 0) == 0);
1710 modest_text_utils_validate_email_address (const gchar *email_address,
1711 const gchar **invalid_char_position)
1714 const gchar *c = NULL, *domain = NULL;
1715 static gchar *rfc822_specials = "()<>@,;:\\\"[]&";
1717 if (invalid_char_position)
1718 *invalid_char_position = NULL;
1720 g_return_val_if_fail (email_address, FALSE);
1722 /* check that the email adress contains exactly one @ */
1723 if (!strstr(email_address, "@") ||
1724 (strstr(email_address, "@") != g_strrstr(email_address, "@")))
1727 /* first we validate the name portion (name@domain) */
1728 for (c = email_address; *c; c++) {
1730 (c == email_address ||
1732 *(c - 1) == '\"')) {
1736 if (*c == '\\' && (*++c == ' '))
1738 if (*c <= ' ' || *c >= 127)
1751 if (*c <= ' ' || *c >= 127)
1753 if (strchr(rfc822_specials, *c)) {
1754 if (invalid_char_position)
1755 *invalid_char_position = c;
1759 if (c == email_address || *(c - 1) == '.')
1762 /* next we validate the domain portion (name@domain) */
1763 if (!*(domain = ++c))
1767 if (c == domain || *(c - 1) == '.' || *(c + 1) == '\0')
1771 if (*c <= ' ' || *c >= 127)
1773 if (strchr(rfc822_specials, *c)) {
1774 if (invalid_char_position)
1775 *invalid_char_position = c;
1780 return (count >= 1) ? TRUE : FALSE;
1784 modest_text_utils_validate_recipient (const gchar *recipient, const gchar **invalid_char_position)
1786 gchar *stripped, *current;
1788 gboolean has_error = FALSE;
1790 if (invalid_char_position)
1791 *invalid_char_position = NULL;
1793 g_return_val_if_fail (recipient, FALSE);
1795 if (modest_text_utils_validate_email_address (recipient, invalid_char_position))
1798 stripped = g_strdup (recipient);
1799 stripped = g_strstrip (stripped);
1802 if (*current == '\0') {
1808 if (*current == '\"') {
1809 gchar *last_quote = NULL;
1810 current = g_utf8_next_char (current);
1812 for (; *current != '\0'; current = g_utf8_next_char (current)) {
1813 if (*current == '\\') {
1814 /* TODO: This causes a warning, which breaks the build,
1815 * because a gchar cannot be < 0.
1817 if (current[1] <0) {
1822 } else if (*current == '\"') {
1824 current = g_utf8_next_char (current);
1825 last_quote = current;
1829 current = g_utf8_next_char (last_quote);
1832 for (current = stripped ; *current != '\0'; current = g_utf8_next_char (current)) {
1833 if (*current == '<') {
1845 right_part = g_strdup (current);
1847 right_part = g_strstrip (right_part);
1849 if (g_str_has_suffix (right_part, ",") || g_str_has_suffix (right_part, ";"))
1850 right_part [(strlen (right_part) - 1)] = '\0';
1852 if (g_str_has_prefix (right_part, "<") &&
1853 g_str_has_suffix (right_part, ">")) {
1857 address = g_strndup (right_part+1, strlen (right_part) - 2);
1858 g_free (right_part);
1859 valid = modest_text_utils_validate_email_address (address, invalid_char_position);
1863 g_free (right_part);
1870 modest_text_utils_get_display_size (guint64 size)
1872 const guint KB=1024;
1873 const guint MB=1024 * KB;
1874 const guint GB=1024 * MB;
1877 return g_strdup_printf (_FM_SIZE_KB, (int) 0);
1878 if (0 <= size && size < KB)
1879 return g_strdup_printf (_FM_SIZE_1KB_99KB, (int) 1);
1880 else if (KB <= size && size < 100 * KB)
1881 return g_strdup_printf (_FM_SIZE_1KB_99KB, (int) size / KB);
1882 else if (100*KB <= size && size < MB)
1883 return g_strdup_printf (_FM_SIZE_100KB_1MB, (int) size / KB);
1884 else if (MB <= size && size < 10*MB)
1885 return g_strdup_printf (_FM_SIZE_1MB_10MB, (float) size / MB);
1886 else if (10*MB <= size && size < GB)
1887 return g_strdup_printf (_FM_SIZE_10MB_1GB, (float) size / MB);
1889 return g_strdup_printf (_FM_SIZE_1GB_OR_GREATER, (float) size / GB);
1893 get_email_from_address (const gchar * address)
1895 gchar *left_limit, *right_limit;
1897 left_limit = strstr (address, "<");
1898 right_limit = g_strrstr (address, ">");
1900 if ((left_limit == NULL)||(right_limit == NULL)|| (left_limit > right_limit))
1901 return g_strdup (address);
1903 return g_strndup (left_limit + 1, (right_limit - left_limit) - 1);
1907 modest_text_utils_get_color_string (GdkColor *color)
1909 g_return_val_if_fail (color, NULL);
1911 return g_strdup_printf ("#%x%x%x%x%x%x%x%x%x%x%x%x",
1912 (color->red >> 12) & 0xf, (color->red >> 8) & 0xf,
1913 (color->red >> 4) & 0xf, (color->red) & 0xf,
1914 (color->green >> 12) & 0xf, (color->green >> 8) & 0xf,
1915 (color->green >> 4) & 0xf, (color->green) & 0xf,
1916 (color->blue >> 12) & 0xf, (color->blue >> 8) & 0xf,
1917 (color->blue >> 4) & 0xf, (color->blue) & 0xf);
1921 modest_text_utils_text_buffer_get_text (GtkTextBuffer *buffer)
1923 GtkTextIter start, end;
1924 gchar *slice, *current;
1925 GString *result = g_string_new ("");
1927 g_return_val_if_fail (buffer && GTK_IS_TEXT_BUFFER (buffer), NULL);
1929 gtk_text_buffer_get_start_iter (buffer, &start);
1930 gtk_text_buffer_get_end_iter (buffer, &end);
1932 slice = gtk_text_buffer_get_slice (buffer, &start, &end, FALSE);
1935 while (current && current != '\0') {
1936 if (g_utf8_get_char (current) == 0xFFFC) {
1937 result = g_string_append_c (result, ' ');
1938 current = g_utf8_next_char (current);
1940 gchar *next = g_utf8_strchr (current, -1, 0xFFFC);
1942 result = g_string_append (result, current);
1944 result = g_string_append_len (result, current, next - current);
1951 return g_string_free (result, FALSE);
1956 modest_text_utils_is_forbidden_char (const gchar character,
1957 ModestTextUtilsForbiddenCharType type)
1960 const gchar *forbidden_chars = NULL;
1962 /* We need to get the length in the switch because the
1963 compiler needs to know the size at compile time */
1965 case ACCOUNT_TITLE_FORBIDDEN_CHARS:
1966 forbidden_chars = account_title_forbidden_chars;
1967 len = G_N_ELEMENTS (account_title_forbidden_chars);
1969 case FOLDER_NAME_FORBIDDEN_CHARS:
1970 forbidden_chars = folder_name_forbidden_chars;
1971 len = G_N_ELEMENTS (folder_name_forbidden_chars);
1973 case USER_NAME_FORBIDDEN_NAMES:
1974 forbidden_chars = user_name_forbidden_chars;
1975 len = G_N_ELEMENTS (user_name_forbidden_chars);
1978 g_return_val_if_reached (TRUE);
1981 for (i = 0; i < len ; i++)
1982 if (forbidden_chars[i] == character)
1985 return FALSE; /* it's valid! */
1989 modest_text_utils_label_get_selection (GtkLabel *label)
1994 if (gtk_label_get_selection_bounds (GTK_LABEL (label), &start, &end)) {
1995 const gchar *start_offset;
1996 const gchar *end_offset;
1997 start_offset = gtk_label_get_text (GTK_LABEL (label));
1998 start_offset = g_utf8_offset_to_pointer (start_offset, start);
1999 end_offset = gtk_label_get_text (GTK_LABEL (label));
2000 end_offset = g_utf8_offset_to_pointer (end_offset, end);
2001 selection = g_strndup (start_offset, end_offset - start_offset);
2004 return g_strdup ("");
2009 _forward_search_image_char (gunichar ch,
2012 return (ch == 0xFFFC);
2016 modest_text_utils_buffer_selection_is_valid (GtkTextBuffer *buffer)
2019 GtkTextIter start, end;
2021 g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), FALSE);
2023 result = gtk_text_buffer_get_has_selection (GTK_TEXT_BUFFER (buffer));
2025 /* check there are no images in selection */
2027 gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
2028 if (gtk_text_iter_get_char (&start)== 0xFFFC)
2031 gtk_text_iter_backward_char (&end);
2032 if (gtk_text_iter_forward_find_char (&start, _forward_search_image_char,
2043 remove_quotes (gchar **quotes)
2045 if (g_str_has_prefix (*quotes, "\"") && g_str_has_suffix (*quotes, "\"")) {
2047 result = g_strndup ((*quotes)+1, strlen (*quotes) - 2);
2054 remove_extra_spaces (gchar *string)
2059 while (start && start[0] != '\0') {
2060 if ((start[0] == ' ') && (start[1] == ' ')) {
2061 g_strchug (start+1);
2068 modest_text_utils_escape_mnemonics (const gchar *text)
2071 GString *result = NULL;
2076 result = g_string_new ("");
2077 for (p = text; *p != '\0'; p++) {
2079 result = g_string_append (result, "__");
2081 result = g_string_append_c (result, *p);
2084 return g_string_free (result, FALSE);
2088 modest_text_utils_simplify_recipients (const gchar *recipients)
2090 GSList *addresses, *node;
2092 gboolean is_first = TRUE;
2094 if (recipients == NULL)
2095 return g_strdup ("");
2097 addresses = modest_text_utils_split_addresses_list (recipients);
2098 result = g_string_new ("");
2100 for (node = addresses; node != NULL; node = g_slist_next (node)) {
2101 const gchar *address = (const gchar *) node->data;
2102 gchar *left_limit, *right_limit;
2104 left_limit = strstr (address, "<");
2105 right_limit = g_strrstr (address, ">");
2110 result = g_string_append (result, ", ");
2112 if ((left_limit == NULL)||(right_limit == NULL)|| (left_limit > right_limit)) {
2113 result = g_string_append (result, address);
2117 name_side = g_strndup (address, left_limit - address);
2118 name_side = g_strstrip (name_side);
2119 remove_quotes (&name_side);
2120 email_side = get_email_from_address (address);
2121 if (name_side && email_side && !strcmp (name_side, email_side)) {
2122 result = g_string_append (result, email_side);
2124 result = g_string_append (result, address);
2127 g_free (email_side);
2131 g_slist_foreach (addresses, (GFunc)g_free, NULL);
2132 g_slist_free (addresses);
2134 return g_string_free (result, FALSE);
2139 modest_text_utils_remove_duplicate_addresses_list (GSList *address_list)
2141 GSList *new_list, *iter;
2144 g_return_val_if_fail (address_list, NULL);
2146 table = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
2148 new_list = address_list;
2149 iter = address_list;
2151 const gchar* address = (const gchar*)iter->data;
2153 /* We need only the email to just compare it and not
2154 the full address which would make "a <a@a.com>"
2155 different from "a@a.com" */
2156 const gchar *email = get_email_from_address (address);
2158 /* ignore the address if already seen */
2159 if (g_hash_table_lookup (table, email) == 0) {
2160 g_hash_table_insert (table, (gchar*)email, GINT_TO_POINTER(1));
2161 iter = g_slist_next (iter);
2163 GSList *tmp = g_slist_next (iter);
2164 new_list = g_slist_delete_link (new_list, iter);
2169 g_hash_table_unref (table);
2175 modest_text_utils_get_secure_header (const gchar *value,
2176 const gchar *header)
2178 const gint max_len = 16384;
2179 gchar *new_value = NULL;
2180 gchar *needle = g_strrstr (value, header);
2182 if (needle && value != needle)
2183 new_value = g_strdup (needle + strlen (header));
2186 new_value = g_strdup (value);
2188 /* Do a max length check to prevent DoS attacks caused by huge
2189 malformed headers */
2190 if (g_utf8_validate (new_value, -1, NULL)) {
2191 if (g_utf8_strlen (new_value, -1) > max_len) {
2192 gchar *tmp = g_malloc0 (max_len * 4);
2193 g_utf8_strncpy (tmp, (const gchar *) new_value, max_len);
2198 if (strlen (new_value) > max_len) {
2199 gchar *tmp = g_malloc0 (max_len);
2200 strncpy (new_value, tmp, max_len);
2210 is_quoted (const char *start, const gchar *end)
2214 c = (gchar *) start;
2216 c = g_utf8_next_char (c);
2218 if (*c == '\0' || *c != '\"')
2222 while (*c == ' ' && c != start)
2223 c = g_utf8_prev_char (c);
2225 if (c == start || *c != '\"')
2233 quote_name_part (GString **str, gchar **cur, gchar **start)
2236 gint str_len = *cur - *start;
2238 while (**start == ' ') {
2239 *start = g_utf8_next_char (*start);
2243 blank = g_utf8_strrchr (*start, str_len, g_utf8_get_char (" "));
2244 if (blank && (blank != *start)) {
2245 if (is_quoted (*start, blank - 1)) {
2246 *str = g_string_append_len (*str, *start, str_len);
2247 *str = g_string_append (*str, ";");
2248 *start = g_utf8_next_char (*cur);
2250 *str = g_string_append_c (*str, '"');
2251 *str = g_string_append_len (*str, *start,
2252 (g_utf8_pointer_to_offset (*start, blank) -
2253 g_utf8_pointer_to_offset (*start, *start)));
2254 *str = g_string_append_c (*str, '"');
2255 *str = g_string_append_len (*str, blank,
2256 (g_utf8_pointer_to_offset (*start, *cur) -
2257 g_utf8_pointer_to_offset (*start, blank)));
2258 *str = g_string_append (*str, ";");
2259 *start = g_utf8_next_char (*cur);
2262 *str = g_string_append_len (*str, *start, str_len);
2263 *str = g_string_append (*str, ";");
2264 *start = g_utf8_next_char (*cur);
2269 modest_text_utils_quote_names (const gchar *recipients)
2274 str = g_string_new ("");
2275 start = (gchar*) recipients;
2276 cur = (gchar*) recipients;
2278 for (cur = start; *cur != '\0'; cur = g_utf8_next_char (cur)) {
2279 if (*cur == ',' || *cur == ';') {
2280 if (!g_utf8_strchr (start, (cur - start + 1), g_utf8_get_char ("@")))
2282 quote_name_part (&str, &cur, &start);
2286 quote_name_part (&str, &cur, &start);
2288 return g_string_free (str, FALSE);
2291 /* Returns TRUE if there is no recipients in the text buffer. Note
2292 that strings like " ; , " contain only separators and thus no
2295 modest_text_utils_no_recipient (GtkTextBuffer *buffer)
2297 gboolean retval = TRUE;
2299 GtkTextIter start, end;
2301 if (gtk_text_buffer_get_char_count (buffer) == 0)
2304 gtk_text_buffer_get_start_iter (buffer, &start);
2305 gtk_text_buffer_get_end_iter (buffer, &end);
2307 text = g_strstrip (gtk_text_buffer_get_text (buffer, &start, &end, FALSE));
2308 if (!g_strcmp0 (text, ""))
2312 while (tmp && *tmp != '\0') {
2313 if ((*tmp != ',') && (*tmp != ';') &&
2314 (*tmp != '\r') && (*tmp != '\n') &&