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, const gchar *prefix)
302 gchar *tmp, *subject_dup, *retval;
305 g_return_val_if_fail (prefix, NULL);
307 if (!subject || subject[0] == '\0')
308 subject = _("mail_va_no_subject");
310 subject_dup = g_strdup (subject);
311 tmp = g_strchug (subject_dup);
313 /* We do not want things like "Re: Re: Re:" or "Fw: Fw:" so
314 delete the previous ones */
315 prefix_len = strlen (prefix);
317 if (g_str_has_prefix (tmp, prefix)) {
319 tmp = g_strchug (tmp);
321 gchar *prefix_down, *tmp_down;
323 /* We need this to properly check the cases of
324 some clients adding FW: instead of Fw: for
326 prefix_down = g_utf8_strdown (prefix, -1);
327 tmp_down = g_utf8_strdown (tmp, -1);
328 if (g_str_has_prefix (tmp_down, prefix_down)) {
330 tmp = g_strchug (tmp);
331 g_free (prefix_down);
334 g_free (prefix_down);
341 retval = g_strdup_printf ("%s %s", prefix, tmp);
342 g_free (subject_dup);
348 /* Performs a case-insensitive strstr for ASCII strings */
350 ascii_stristr(const gchar *haystack, const gchar *needle)
355 const gchar *max_pos;
357 if (haystack == NULL || needle == NULL) {
358 return haystack; /* as in strstr */
361 needle_len = strlen(needle);
363 if (needle_len == 0) {
364 return haystack; /* as in strstr */
367 haystack_len = strlen(haystack);
368 max_pos = haystack + haystack_len - needle_len;
370 for (pos = haystack; pos <= max_pos; pos++) {
371 if (g_ascii_strncasecmp (pos, needle, needle_len) == 0) {
381 modest_text_utils_remove_address (const gchar *address_list, const gchar *address)
383 gchar *dup, *token, *ptr = NULL, *result;
384 GString *filtered_emails;
385 gchar *email_address;
387 g_return_val_if_fail (address_list, NULL);
390 return g_strdup (address_list);
392 email_address = get_email_from_address (address);
394 /* search for substring */
395 if (!ascii_stristr ((const char *) address_list, (const char *) email_address)) {
396 g_free (email_address);
397 return g_strdup (address_list);
400 dup = g_strdup (address_list);
401 filtered_emails = g_string_new (NULL);
403 token = strtok_r (dup, ",", &ptr);
405 while (token != NULL) {
406 /* Add to list if not found */
407 if (!ascii_stristr ((const char *) token, (const char *) email_address)) {
408 if (filtered_emails->len == 0)
409 g_string_append_printf (filtered_emails, "%s", g_strstrip (token));
411 g_string_append_printf (filtered_emails, ",%s", g_strstrip (token));
413 token = strtok_r (NULL, ",", &ptr);
415 result = filtered_emails->str;
418 g_free (email_address);
420 g_string_free (filtered_emails, FALSE);
427 modest_text_utils_remove_duplicate_addresses (const gchar *address_list)
429 GSList *addresses, *cursor;
431 gchar *new_list = NULL;
433 g_return_val_if_fail (address_list, NULL);
435 table = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
436 addresses = modest_text_utils_split_addresses_list (address_list);
440 const gchar* address = (const gchar*)cursor->data;
442 /* We need only the email to just compare it and not
443 the full address which would make "a <a@a.com>"
444 different from "a@a.com" */
445 const gchar *email = get_email_from_address (address);
447 /* ignore the address if already seen */
448 if (g_hash_table_lookup (table, email) == 0) {
451 /* Include the full address and not only the
452 email in the returned list */
454 tmp = g_strdup (address);
456 tmp = g_strjoin (",", new_list, address, NULL);
461 g_hash_table_insert (table, (gchar*)email, GINT_TO_POINTER(1));
463 cursor = g_slist_next (cursor);
466 g_hash_table_unref (table);
467 g_slist_foreach (addresses, (GFunc)g_free, NULL);
468 g_slist_free (addresses);
470 if (new_list == NULL)
471 new_list = g_strdup ("");
478 modest_text_utils_convert_buffer_to_html_start (GString *html, const gchar *data, gssize n)
481 gboolean space_seen = FALSE;
482 guint break_dist = 0; /* distance since last break point */
487 /* replace with special html chars where needed*/
488 for (i = 0; i != n; ++i) {
489 guchar kar = data[i];
491 if (space_seen && kar != ' ') {
492 g_string_append (html, " ");
496 /* we artificially insert a breakpoint (newline)
497 * after 256, to make sure our lines are not so long
498 * they will DOS the regexping later
499 * Also, check that kar is ASCII to make sure that we
500 * don't break a UTF8 char in two
502 if (++break_dist >= 256 && kar < 127) {
503 g_string_append_c (html, '\n');
511 /* this is a temp place holder for '&'; we can only
512 * set the real '&' after hyperlink translation, otherwise
513 * we might screw that up */
514 break; /* ignore embedded \0s and MARK_AMP */
515 case '<' : g_string_append (html, MARK_AMP_STR "lt;"); break;
516 case '>' : g_string_append (html, MARK_AMP_STR "gt;"); break;
517 case '&' : g_string_append (html, MARK_AMP_URI_STR "amp;"); break; /* special case */
518 case '"' : g_string_append (html, MARK_AMP_STR "quot;"); break;
520 /* don't convert ' --> wpeditor will try to re-convert it... */
521 //case '\'' : g_string_append (html, "'"); break;
522 case '\n' : g_string_append (html, "<br>\n");break_dist= 0; break;
523 case '\t' : g_string_append (html, MARK_AMP_STR "nbsp;" MARK_AMP_STR "nbsp;" MARK_AMP_STR "nbsp; ");
524 break_dist=0; break; /* note the space at the end*/
527 if (space_seen) { /* second space in a row */
528 g_string_append (html, " ");
533 g_string_append_c (html, kar);
540 modest_text_utils_convert_buffer_to_html_finish (GString *html)
543 /* replace all our MARK_AMPs with real ones */
544 for (i = 0; i != html->len; ++i)
545 if ((html->str)[i] == MARK_AMP || (html->str)[i] == MARK_AMP_URI)
546 (html->str)[i] = '&';
551 modest_text_utils_convert_to_html (const gchar *data)
556 g_return_val_if_fail (data, NULL);
562 html = g_string_sized_new (1.5 * len); /* just a guess... */
564 g_string_append_printf (html,
566 "<meta http-equiv=\"content-type\" content=\"text/html; charset=utf8\">"
570 modest_text_utils_convert_buffer_to_html_start (html, data, -1);
572 g_string_append (html, "</body></html>");
574 if (len <= HYPERLINKIFY_MAX_LENGTH)
575 hyperlinkify_plain_text (html, 0);
577 modest_text_utils_convert_buffer_to_html_finish (html);
579 return g_string_free (html, FALSE);
583 modest_text_utils_convert_to_html_body (const gchar *data, gssize n, gboolean hyperlinkify)
587 g_return_val_if_fail (data, NULL);
594 html = g_string_sized_new (1.5 * n); /* just a guess... */
596 modest_text_utils_convert_buffer_to_html_start (html, data, n);
598 if (hyperlinkify && (n < HYPERLINKIFY_MAX_LENGTH))
599 hyperlinkify_plain_text (html, 0);
601 modest_text_utils_convert_buffer_to_html_finish (html);
603 return g_string_free (html, FALSE);
607 modest_text_utils_get_addresses_indexes (const gchar *addresses, GSList **start_indexes, GSList **end_indexes)
615 if (strlen (addresses) == 0)
618 str = g_string_new ("");
619 start = (gchar*) addresses;
620 cur = (gchar*) addresses;
622 for (cur = start; *cur != '\0'; cur = g_utf8_next_char (cur)) {
623 if (*cur == ',' || *cur == ';') {
624 gint *start_index, *end_index;
625 gchar *next_char = g_utf8_next_char (cur);
627 if (!g_utf8_strchr (start, (cur - start + 1), g_utf8_get_char ("@")) &&
628 next_char && *next_char != '\n')
631 start_index = g_new0 (gint, 1);
632 end_index = g_new0 (gint, 1);
633 *start_index = g_utf8_pointer_to_offset (addresses, start);
634 *end_index = g_utf8_pointer_to_offset (addresses, cur);;
635 *start_indexes = g_slist_prepend (*start_indexes, start_index);
636 *end_indexes = g_slist_prepend (*end_indexes, end_index);
637 start = g_utf8_next_char (cur);
642 gint *start_index, *end_index;
643 start_index = g_new0 (gint, 1);
644 end_index = g_new0 (gint, 1);
645 *start_index = g_utf8_pointer_to_offset (addresses, start);
646 *end_index = g_utf8_pointer_to_offset (addresses, cur);;
647 *start_indexes = g_slist_prepend (*start_indexes, start_index);
648 *end_indexes = g_slist_prepend (*end_indexes, end_index);
652 *start_indexes = g_slist_reverse (*start_indexes);
654 *end_indexes = g_slist_reverse (*end_indexes);
659 modest_text_utils_split_addresses_list (const gchar *addresses)
662 const gchar *my_addrs = addresses;
665 gboolean after_at = FALSE;
667 g_return_val_if_fail (addresses, NULL);
669 /* skip any space, ',', ';' at the start */
670 while (my_addrs && (my_addrs[0] == ' ' || my_addrs[0] == ',' || my_addrs[0] == ';'))
673 /* are we at the end of addresses list? */
677 /* nope, we are at the start of some address
678 * now, let's find the end of the address */
680 while (end[0] && end[0] != ';' && !(after_at && end[0] == ',')) {
681 if (end[0] == '\"') {
682 while (end[0] && end[0] != '\"')
688 if ((end[0] && end[0] == '>')&&(end[1] && end[1] == ',')) {
695 /* we got the address; copy it and remove trailing whitespace */
696 addr = g_strndup (my_addrs, end - my_addrs);
699 remove_extra_spaces (addr);
701 head = g_slist_append (NULL, addr);
702 head->next = modest_text_utils_split_addresses_list (end); /* recurse */
709 modest_text_utils_address_range_at_position (const gchar *recipients_list,
714 gchar *current = NULL;
715 gint range_start = 0;
718 gboolean is_quoted = FALSE;
720 g_return_if_fail (recipients_list);
721 g_return_if_fail (position < g_utf8_strlen(recipients_list, -1));
724 for (current = (gchar *) recipients_list; *current != '\0';
725 current = g_utf8_find_next_char (current, NULL)) {
726 gunichar c = g_utf8_get_char (current);
728 if ((c == ',') && (!is_quoted)) {
729 if (index < position) {
730 range_start = index + 1;
734 } else if (c == '\"') {
735 is_quoted = !is_quoted;
736 } else if ((c == ' ') &&(range_start == index)) {
744 *start = range_start;
750 modest_text_utils_address_with_standard_length (const gchar *recipients_list)
754 GString *buffer = g_string_new ("");
756 splitted = g_strsplit (recipients_list, "\n", 0);
760 if (current != splitted)
761 buffer = g_string_append_c (buffer, '\n');
762 line = g_strndup (*splitted, 1000);
763 buffer = g_string_append (buffer, line);
768 g_strfreev (splitted);
770 return g_string_free (buffer, FALSE);
774 /* ******************************************************************* */
775 /* ************************* UTILIY FUNCTIONS ************************ */
776 /* ******************************************************************* */
779 get_next_line (const gchar * b, const gsize blen, const gchar * iter)
785 return g_string_new("");
793 gs = g_string_new_len (i0, iter - i0);
797 get_indent_level (const char *l)
814 /* if we hit the signature marker "-- ", we return -(indent + 1). This
815 * stops reformatting.
817 if (strcmp (l, MODEST_TEXT_UTILS_SIGNATURE_MARKER) == 0) {
825 unquote_line (GString * l, const gchar *quote_symbol)
831 quote_len = strlen (quote_symbol);
833 if (g_str_has_prefix (p, quote_symbol)) {
834 if (p[quote_len] == ' ') {
842 g_string_erase (l, 0, p - l->str);
846 append_quoted (GString * buf, const gchar *quote_symbol,
847 int indent, const GString * str,
853 indent = indent < 0 ? abs (indent) - 1 : indent;
854 quote_concat = g_strconcat (quote_symbol, " ", NULL);
855 for (i = 0; i <= indent; i++) {
856 g_string_append (buf, quote_concat);
858 g_free (quote_concat);
860 g_string_append_len (buf, str->str, cutpoint);
862 g_string_append (buf, str->str);
864 g_string_append (buf, "\n");
868 get_breakpoint_utf8 (const gchar * s, gint indent, const gint limit)
871 const gchar *pos, *last;
874 indent = indent < 0 ? abs (indent) - 1 : indent;
878 uni = g_utf8_to_ucs4_fast (s, -1, NULL);
880 if ((index + 2 * indent > limit) && last) {
884 if (g_unichar_isspace (uni[index])) {
887 pos = g_utf8_next_char (pos);
895 get_breakpoint_ascii (const gchar * s, const gint indent, const gint limit)
900 if (last + 2 * indent < limit)
903 for (i = strlen (s); i > 0; i--) {
905 if (i + 2 * indent <= limit) {
916 get_breakpoint (const gchar * s, const gint indent, const gint limit)
919 if (g_utf8_validate (s, -1, NULL)) {
920 return get_breakpoint_utf8 (s, indent, limit);
921 } else { /* assume ASCII */
922 //g_warning("invalid UTF-8 in msg");
923 return get_breakpoint_ascii (s, indent, limit);
928 cite (const time_t sent_date, const gchar *from)
930 return g_strdup (_("mcen_ia_editor_original_message"));
934 quoted_attachments (GList *attachments)
937 GString *result = g_string_new ("");
938 for (node = attachments; node != NULL; node = g_list_next (node)) {
939 gchar *filename = (gchar *) node->data;
940 g_string_append_printf ( result, "%s %s\n", _("mcen_ia_editor_attach_filename"), filename);
943 return g_string_free (result, FALSE);
948 modest_text_utils_quote_body (GString *output, const gchar *text,
949 const gchar *quote_symbol,
955 gint indent, breakpoint, rem_indent = 0;
956 GString *l, *remaining;
960 remaining = g_string_new ("");
962 l = get_next_line (text, len, iter);
963 iter = iter + l->len + 1;
964 indent = get_indent_level (l->str);
965 unquote_line (l, quote_symbol);
967 if (remaining->len) {
968 if (l->len && indent == rem_indent) {
969 g_string_prepend (l, " ");
970 g_string_prepend (l, remaining->str);
973 gunichar remaining_first;
975 get_breakpoint (remaining->str,
978 append_quoted (output, quote_symbol, rem_indent,
979 remaining, breakpoint);
980 g_string_erase (remaining, 0,
982 remaining_first = g_utf8_get_char_validated (remaining->str, remaining->len);
983 if (remaining_first != ((gunichar) -1)) {
984 if (g_unichar_isspace (remaining_first)) {
985 g_string_erase (remaining, 0, g_utf8_next_char (remaining->str) - remaining->str);
988 } while (remaining->len);
991 g_string_free (remaining, TRUE);
992 breakpoint = get_breakpoint (l->str, indent, limit);
993 remaining = g_string_new (l->str + breakpoint);
994 if (remaining->str[0] == ' ') {
995 g_string_erase (remaining, 0, 1);
998 append_quoted (output, quote_symbol, indent, l, breakpoint);
999 g_string_free (l, TRUE);
1000 } while ((iter < text + len) || (remaining->str[0]));
1006 modest_text_utils_quote_plain_text (const gchar *text,
1008 const gchar *signature,
1013 gchar *attachments_string = NULL;
1015 q = g_string_new ("");
1017 if (signature != NULL) {
1018 g_string_append_printf (q, "\n%s\n", MODEST_TEXT_UTILS_SIGNATURE_MARKER);
1019 q = g_string_append (q, signature);
1022 q = g_string_append (q, "\n");
1023 q = g_string_append (q, cite);
1024 q = g_string_append_c (q, '\n');
1026 q = modest_text_utils_quote_body (q, text, ">", limit);
1028 attachments_string = quoted_attachments (attachments);
1029 q = g_string_append (q, attachments_string);
1030 g_free (attachments_string);
1032 return g_string_free (q, FALSE);
1036 quote_html_add_to_gstring (GString *string,
1039 if (text && strcmp (text, "")) {
1040 gchar *html_text = modest_text_utils_convert_to_html_body (text, -1, TRUE);
1041 g_string_append_printf (string, "%s<br/>", html_text);
1047 modest_text_utils_quote_html (const gchar *text,
1049 const gchar *signature,
1053 GString *result_string;
1057 "<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">\n" \
1061 if (text || cite || signature) {
1062 GString *quoted_text;
1063 g_string_append (result_string, "<pre>\n");
1065 quote_html_add_to_gstring (result_string, MODEST_TEXT_UTILS_SIGNATURE_MARKER);
1066 quote_html_add_to_gstring (result_string, signature);
1068 quote_html_add_to_gstring (result_string, cite);
1069 quoted_text = g_string_new ("");
1070 quoted_text = modest_text_utils_quote_body (quoted_text, (text) ? text : "", ">", limit);
1071 quote_html_add_to_gstring (result_string, quoted_text->str);
1072 g_string_free (quoted_text, TRUE);
1074 gchar *attachments_string = quoted_attachments (attachments);
1075 quote_html_add_to_gstring (result_string, attachments_string);
1076 g_free (attachments_string);
1078 g_string_append (result_string, "</pre>");
1080 g_string_append (result_string, "</body>");
1081 g_string_append (result_string, "</html>");
1083 return g_string_free (result_string, FALSE);
1087 cmp_offsets_reverse (const url_match_t *match1, const url_match_t *match2)
1089 return match2->offset - match1->offset;
1092 static gint url_matches_block = 0;
1093 static url_match_pattern_t patterns[] = MAIL_VIEWER_URL_MATCH_PATTERNS;
1094 static GMutex *url_patterns_mutex = NULL;
1101 const size_t pattern_num = sizeof(patterns)/sizeof(url_match_pattern_t);
1102 for (i = 0; i != pattern_num; ++i) {
1103 patterns[i].preg = g_slice_new0 (regex_t);
1105 /* this should not happen */
1106 if (regcomp (patterns[i].preg, patterns[i].regex,
1107 REG_ICASE|REG_EXTENDED|REG_NEWLINE) != 0) {
1108 g_warning ("%s: error in regexp:\n%s\n", __FUNCTION__, patterns[i].regex);
1119 const size_t pattern_num = sizeof(patterns)/sizeof(url_match_pattern_t);
1120 for (i = 0; i != pattern_num; ++i) {
1121 regfree (patterns[i].preg);
1122 g_slice_free (regex_t, patterns[i].preg);
1123 } /* don't free patterns itself -- it's static */
1127 modest_text_utils_hyperlinkify_begin (void)
1130 if (url_patterns_mutex == NULL) {
1131 url_patterns_mutex = g_mutex_new ();
1133 g_mutex_lock (url_patterns_mutex);
1134 if (url_matches_block == 0)
1135 compile_patterns ();
1136 url_matches_block ++;
1137 g_mutex_unlock (url_patterns_mutex);
1141 modest_text_utils_hyperlinkify_end (void)
1143 g_mutex_lock (url_patterns_mutex);
1144 url_matches_block--;
1145 if (url_matches_block <= 0)
1147 g_mutex_unlock (url_patterns_mutex);
1152 get_url_matches (GString *txt, gint offset)
1155 guint rv, i, tmp_offset = 0;
1156 GSList *match_list = NULL;
1158 const size_t pattern_num = sizeof(patterns)/sizeof(url_match_pattern_t);
1160 /* initalize the regexps */
1161 modest_text_utils_hyperlinkify_begin ();
1163 /* find all the matches */
1164 for (i = 0; i != pattern_num; ++i) {
1165 tmp_offset = offset;
1168 gboolean is_submatch;
1171 if ((rv = regexec (patterns[i].preg, txt->str + tmp_offset, 1, &rm, 0)) != 0) {
1172 g_return_val_if_fail (rv == REG_NOMATCH, NULL); /* this should not happen */
1173 break; /* try next regexp */
1178 is_submatch = FALSE;
1179 /* check old matches to see if this has already been matched */
1180 cursor = match_list;
1181 while (cursor && !is_submatch) {
1182 const url_match_t *old_match =
1183 (const url_match_t *) cursor->data;
1184 guint new_offset = tmp_offset + rm.rm_so;
1185 is_submatch = (new_offset > old_match->offset &&
1186 new_offset < old_match->offset + old_match->len);
1187 cursor = g_slist_next (cursor);
1191 /* make a list of our matches (<offset, len, prefix> tupels)*/
1192 match = g_slice_new (url_match_t);
1193 match->offset = tmp_offset + rm.rm_so;
1194 match->len = rm.rm_eo - rm.rm_so;
1195 match->prefix = patterns[i].prefix;
1196 match_list = g_slist_prepend (match_list, match);
1198 tmp_offset += rm.rm_eo;
1202 modest_text_utils_hyperlinkify_end ();
1204 /* now sort the list, so the matches are in reverse order of occurence.
1205 * that way, we can do the replacements starting from the end, so we don't need
1206 * to recalculate the offsets
1208 match_list = g_slist_sort (match_list,
1209 (GCompareFunc)cmp_offsets_reverse);
1215 /* replace all occurences of needle in haystack with repl*/
1217 replace_string (const gchar *haystack, const gchar *needle, gchar repl)
1219 gchar *str, *cursor;
1221 if (!haystack || !needle || strlen(needle) == 0)
1222 return haystack ? g_strdup(haystack) : NULL;
1224 str = g_strdup (haystack);
1226 for (cursor = str; cursor && *cursor; ++cursor) {
1227 if (g_str_has_prefix (cursor, needle)) {
1229 memmove (cursor + 1,
1230 cursor + strlen (needle),
1231 strlen (cursor + strlen (needle)) + 1);
1239 hyperlinkify_plain_text (GString *txt, gint offset)
1242 GSList *match_list = get_url_matches (txt, offset);
1244 /* we will work backwards, so the offsets stay valid */
1245 for (cursor = match_list; cursor; cursor = cursor->next) {
1247 url_match_t *match = (url_match_t*) cursor->data;
1248 gchar *url = g_strndup (txt->str + match->offset, match->len);
1249 gchar *repl = NULL; /* replacement */
1251 /* the string still contains $(MARK_AMP_URI_STR)"amp;" for each
1252 * '&' in the original, because of the text->html conversion.
1253 * in the href-URL (and only there), we must convert that back to
1256 gchar *href_url = replace_string (url, MARK_AMP_URI_STR "amp;", '&');
1258 /* the prefix is NULL: use the one that is already there */
1259 repl = g_strdup_printf ("<a href=\"%s%s\">%s</a>",
1260 match->prefix ? match->prefix : EMPTY_STRING,
1263 /* replace the old thing with our hyperlink
1264 * replacement thing */
1265 g_string_erase (txt, match->offset, match->len);
1266 g_string_insert (txt, match->offset, repl);
1272 g_slice_free (url_match_t, match);
1275 g_slist_free (match_list);
1279 modest_text_utils_hyperlinkify (GString *string_buffer)
1284 after_body = strstr (string_buffer->str, "<body>");
1285 if (after_body != NULL)
1286 offset = after_body - string_buffer->str;
1287 hyperlinkify_plain_text (string_buffer, offset);
1291 /* for optimization reasons, we change the string in-place */
1293 modest_text_utils_get_display_address (gchar *address)
1297 g_return_if_fail (address);
1302 /* should not be needed, and otherwise, we probably won't screw up the address
1303 * more than it already is :)
1304 * g_return_val_if_fail (g_utf8_validate (address, -1, NULL), NULL);
1307 /* remove leading whitespace */
1308 if (address[0] == ' ')
1309 g_strchug (address);
1311 for (i = 0; address[i]; ++i) {
1312 if (address[i] == '<') {
1313 if (G_UNLIKELY(i == 0)) {
1314 break; /* there's nothing else, leave it */
1316 address[i] = '\0'; /* terminate the string here */
1322 g_strchomp (address);
1327 modest_text_utils_get_display_addresses (const gchar *recipients)
1330 GSList *recipient_list;
1333 recipient_list = modest_text_utils_split_addresses_list (recipients);
1334 if (recipient_list) {
1335 GString *add_string = g_string_sized_new (strlen (recipients));
1336 GSList *iter = recipient_list;
1337 gboolean first = TRUE;
1340 /* Strings are changed in place */
1341 modest_text_utils_get_display_address ((gchar *) iter->data);
1342 if (G_UNLIKELY (first)) {
1343 g_string_append_printf (add_string, "%s", (gchar *) iter->data);
1346 g_string_append_printf (add_string, ", %s", (gchar *) iter->data);
1348 iter = g_slist_next (iter);
1350 g_slist_foreach (recipient_list, (GFunc) g_free, NULL);
1351 g_slist_free (recipient_list);
1352 addresses = g_string_free (add_string, FALSE);
1360 modest_text_utils_get_email_address (const gchar *full_address)
1362 const gchar *left, *right;
1364 g_return_val_if_fail (full_address, NULL);
1369 g_return_val_if_fail (g_utf8_validate (full_address, -1, NULL), NULL);
1371 left = g_strrstr_len (full_address, strlen(full_address), "<");
1373 return g_strdup (full_address);
1375 right = g_strstr_len (left, strlen(left), ">");
1377 return g_strdup (full_address);
1379 return g_strndup (left + 1, right - left - 1);
1383 modest_text_utils_get_subject_prefix_len (const gchar *sub)
1385 gint prefix_len = 0;
1387 g_return_val_if_fail (sub, 0);
1392 /* optimization: "Re", "RE", "re","Fwd", "FWD", "fwd","FW","Fw", "fw" */
1393 if (sub[0] != 'R' && sub[0] != 'F' && sub[0] != 'r' && sub[0] != 'f')
1395 else if (sub[0] && sub[1] != 'e' && sub[1] != 'E' && sub[1] != 'w' && sub[1] != 'W')
1402 /* skip over a [...] block */
1403 if (sub[prefix_len] == '[') {
1404 int c = prefix_len + 1;
1405 while (sub[c] && sub[c] != ']')
1408 return 0; /* no end to the ']' found */
1413 /* did we find the ':' ? */
1414 if (sub[prefix_len] == ':') {
1416 if (sub[prefix_len] == ' ')
1418 prefix_len += modest_text_utils_get_subject_prefix_len (sub + prefix_len);
1419 /* g_warning ("['%s','%s']", sub, (char*) sub + prefix_len); */
1427 modest_text_utils_utf8_strcmp (const gchar* s1, const gchar *s2, gboolean insensitive)
1430 /* work even when s1 and/or s2 == NULL */
1431 if (G_UNLIKELY(s1 == s2))
1433 if (G_UNLIKELY(!s1))
1435 if (G_UNLIKELY(!s2))
1438 /* if it's not case sensitive */
1441 /* optimization: shortcut if first char is ascii */
1442 if (((s1[0] & 0x80)== 0) && ((s2[0] & 0x80) == 0) &&
1444 return s1[0] - s2[0];
1446 return g_utf8_collate (s1, s2);
1452 /* optimization: shortcut if first char is ascii */
1453 if (((s1[0] & 0x80) == 0) && ((s2[0] & 0x80) == 0) &&
1454 (tolower(s1[0]) != tolower (s2[0])))
1455 return tolower(s1[0]) - tolower(s2[0]);
1457 n1 = g_utf8_strdown (s1, -1);
1458 n2 = g_utf8_strdown (s2, -1);
1460 result = g_utf8_collate (n1, n2);
1471 modest_text_utils_get_display_date (time_t date)
1473 #define DATE_BUF_SIZE 64
1474 static gchar date_buf[DATE_BUF_SIZE];
1476 /* calculate the # of days since epoch for
1477 * for today and for the date provided
1478 * based on idea from pvanhoof */
1479 int day = time(NULL) / (24 * 60 * 60);
1480 int date_day = date / (24 * 60 * 60);
1482 /* if it's today, show the time, if it's not today, show the date instead */
1484 /* TODO: take into account the system config for 24/12h */
1485 #ifdef MODEST_TOOLKIT_HILDON2
1486 if (day == date_day) /* is the date today? */
1487 modest_text_utils_strftime (date_buf, DATE_BUF_SIZE, _HL("wdgt_va_24h_time"), date);
1489 modest_text_utils_strftime (date_buf, DATE_BUF_SIZE, _HL("wdgt_va_date"), date);
1491 if (day == date_day) /* is the date today? */
1492 modest_text_utils_strftime (date_buf, DATE_BUF_SIZE, "%X", date);
1494 modest_text_utils_strftime (date_buf, DATE_BUF_SIZE, "%x", date);
1497 return date_buf; /* this is a static buffer, don't free! */
1503 modest_text_utils_validate_folder_name (const gchar *folder_name)
1505 /* based on http://msdn2.microsoft.com/en-us/library/aa365247.aspx,
1506 * with some extras */
1510 const gchar **cursor = NULL;
1511 const gchar *forbidden_names[] = { /* windows does not like these */
1512 "CON", "PRN", "AUX", "NUL", ".", "..", "cur", "tmp", "new",
1513 NULL /* cur, tmp, new are reserved for Maildir */
1516 /* cannot be NULL */
1520 /* cannot be empty */
1521 len = strlen(folder_name);
1525 /* cannot start with a dot, vfat does not seem to like that */
1526 if (folder_name[0] == '.')
1529 /* cannot start or end with a space */
1530 if (g_ascii_isspace(folder_name[0]) || g_ascii_isspace(folder_name[len - 1]))
1533 /* cannot contain a forbidden char */
1534 for (i = 0; i < len; i++)
1535 if (modest_text_utils_is_forbidden_char (folder_name[i], FOLDER_NAME_FORBIDDEN_CHARS))
1538 /* Cannot contain Windows port numbers. I'd like to use GRegex
1539 but it's still not available in Maemo. sergio */
1540 if (!g_ascii_strncasecmp (folder_name, "LPT", 3) ||
1541 !g_ascii_strncasecmp (folder_name, "COM", 3)) {
1545 /* We skip the first 3 characters for the
1547 val = strtol(folder_name+3, &endptr, 10);
1549 /* If the conversion to long succeeded then the string
1550 is not valid for us */
1551 if (*endptr == '\0')
1557 /* cannot contain a forbidden word */
1559 for (cursor = forbidden_names; cursor && *cursor; ++cursor) {
1560 if (g_ascii_strcasecmp (folder_name, *cursor) == 0)
1565 return TRUE; /* it's valid! */
1571 modest_text_utils_validate_domain_name (const gchar *domain)
1573 gboolean valid = FALSE;
1575 const gchar* domain_regex = "^([a-z0-9-]*[a-z0-9]\\.)+[a-z0-9-]*[a-z0-9]$";
1577 g_return_val_if_fail (domain, FALSE);
1582 memset (&rx, 0, sizeof(regex_t)); /* coverity wants this... */
1584 /* domain name: all alphanum or '-' or '.',
1585 * but beginning/ending in alphanum */
1586 if (regcomp (&rx, domain_regex, REG_ICASE|REG_EXTENDED|REG_NOSUB)) {
1587 g_warning ("BUG: error in regexp");
1591 valid = (regexec (&rx, domain, 1, NULL, 0) == 0);
1600 modest_text_utils_validate_email_address (const gchar *email_address,
1601 const gchar **invalid_char_position)
1604 const gchar *c = NULL, *domain = NULL;
1605 static gchar *rfc822_specials = "()<>@,;:\\\"[]&";
1607 if (invalid_char_position)
1608 *invalid_char_position = NULL;
1610 g_return_val_if_fail (email_address, FALSE);
1612 /* check that the email adress contains exactly one @ */
1613 if (!strstr(email_address, "@") ||
1614 (strstr(email_address, "@") != g_strrstr(email_address, "@")))
1617 /* first we validate the name portion (name@domain) */
1618 for (c = email_address; *c; c++) {
1620 (c == email_address ||
1622 *(c - 1) == '\"')) {
1626 if (*c == '\\' && (*++c == ' '))
1628 if (*c <= ' ' || *c >= 127)
1641 if (*c <= ' ' || *c >= 127)
1643 if (strchr(rfc822_specials, *c)) {
1644 if (invalid_char_position)
1645 *invalid_char_position = c;
1649 if (c == email_address || *(c - 1) == '.')
1652 /* next we validate the domain portion (name@domain) */
1653 if (!*(domain = ++c))
1657 if (c == domain || *(c - 1) == '.' || *(c + 1) == '\0')
1661 if (*c <= ' ' || *c >= 127)
1663 if (strchr(rfc822_specials, *c)) {
1664 if (invalid_char_position)
1665 *invalid_char_position = c;
1670 return (count >= 1) ? TRUE : FALSE;
1674 modest_text_utils_validate_recipient (const gchar *recipient, const gchar **invalid_char_position)
1676 gchar *stripped, *current;
1678 gboolean has_error = FALSE;
1680 if (invalid_char_position)
1681 *invalid_char_position = NULL;
1683 g_return_val_if_fail (recipient, FALSE);
1685 if (modest_text_utils_validate_email_address (recipient, invalid_char_position))
1688 stripped = g_strdup (recipient);
1689 stripped = g_strstrip (stripped);
1692 if (*current == '\0') {
1698 if (*current == '\"') {
1699 gchar *last_quote = NULL;
1700 current = g_utf8_next_char (current);
1702 for (; *current != '\0'; current = g_utf8_next_char (current)) {
1703 if (*current == '\\') {
1704 /* TODO: This causes a warning, which breaks the build,
1705 * because a gchar cannot be < 0.
1707 if (current[1] <0) {
1712 } else if (*current == '\"') {
1714 current = g_utf8_next_char (current);
1715 last_quote = current;
1719 current = g_utf8_next_char (last_quote);
1722 for (current = stripped ; *current != '\0'; current = g_utf8_next_char (current)) {
1723 if (*current == '<') {
1735 right_part = g_strdup (current);
1737 right_part = g_strstrip (right_part);
1739 if (g_str_has_suffix (right_part, ",") || g_str_has_suffix (right_part, ";"))
1740 right_part [(strlen (right_part) - 1)] = '\0';
1742 if (g_str_has_prefix (right_part, "<") &&
1743 g_str_has_suffix (right_part, ">")) {
1747 address = g_strndup (right_part+1, strlen (right_part) - 2);
1748 g_free (right_part);
1749 valid = modest_text_utils_validate_email_address (address, invalid_char_position);
1753 g_free (right_part);
1760 modest_text_utils_get_display_size (guint64 size)
1762 const guint KB=1024;
1763 const guint MB=1024 * KB;
1764 const guint GB=1024 * MB;
1767 return g_strdup_printf (_FM("sfil_li_size_kb"), (int) 0);
1768 if (0 <= size && size < KB)
1769 return g_strdup_printf (_FM("sfil_li_size_1kb_99kb"), (int) 1);
1770 else if (KB <= size && size < 100 * KB)
1771 return g_strdup_printf (_FM("sfil_li_size_1kb_99kb"), (int) size / KB);
1772 else if (100*KB <= size && size < MB)
1773 return g_strdup_printf (_FM("sfil_li_size_100kb_1mb"), (int) size / KB);
1774 else if (MB <= size && size < 10*MB)
1775 return g_strdup_printf (_FM("sfil_li_size_1mb_10mb"), (float) size / MB);
1776 else if (10*MB <= size && size < GB)
1777 return g_strdup_printf (_FM("sfil_li_size_10mb_1gb"), (float) size / MB);
1779 return g_strdup_printf (_FM("sfil_li_size_1gb_or_greater"), (float) size / GB);
1783 get_email_from_address (const gchar * address)
1785 gchar *left_limit, *right_limit;
1787 left_limit = strstr (address, "<");
1788 right_limit = g_strrstr (address, ">");
1790 if ((left_limit == NULL)||(right_limit == NULL)|| (left_limit > right_limit))
1791 return g_strdup (address);
1793 return g_strndup (left_limit + 1, (right_limit - left_limit) - 1);
1797 modest_text_utils_get_color_string (GdkColor *color)
1799 g_return_val_if_fail (color, NULL);
1801 return g_strdup_printf ("#%x%x%x%x%x%x%x%x%x%x%x%x",
1802 (color->red >> 12) & 0xf, (color->red >> 8) & 0xf,
1803 (color->red >> 4) & 0xf, (color->red) & 0xf,
1804 (color->green >> 12) & 0xf, (color->green >> 8) & 0xf,
1805 (color->green >> 4) & 0xf, (color->green) & 0xf,
1806 (color->blue >> 12) & 0xf, (color->blue >> 8) & 0xf,
1807 (color->blue >> 4) & 0xf, (color->blue) & 0xf);
1811 modest_text_utils_text_buffer_get_text (GtkTextBuffer *buffer)
1813 GtkTextIter start, end;
1814 gchar *slice, *current;
1815 GString *result = g_string_new ("");
1817 g_return_val_if_fail (buffer && GTK_IS_TEXT_BUFFER (buffer), NULL);
1819 gtk_text_buffer_get_start_iter (buffer, &start);
1820 gtk_text_buffer_get_end_iter (buffer, &end);
1822 slice = gtk_text_buffer_get_slice (buffer, &start, &end, FALSE);
1825 while (current && current != '\0') {
1826 if (g_utf8_get_char (current) == 0xFFFC) {
1827 result = g_string_append_c (result, ' ');
1828 current = g_utf8_next_char (current);
1830 gchar *next = g_utf8_strchr (current, -1, 0xFFFC);
1832 result = g_string_append (result, current);
1834 result = g_string_append_len (result, current, next - current);
1841 return g_string_free (result, FALSE);
1846 modest_text_utils_is_forbidden_char (const gchar character,
1847 ModestTextUtilsForbiddenCharType type)
1850 const gchar *forbidden_chars = NULL;
1852 /* We need to get the length in the switch because the
1853 compiler needs to know the size at compile time */
1855 case ACCOUNT_TITLE_FORBIDDEN_CHARS:
1856 forbidden_chars = account_title_forbidden_chars;
1857 len = G_N_ELEMENTS (account_title_forbidden_chars);
1859 case FOLDER_NAME_FORBIDDEN_CHARS:
1860 forbidden_chars = folder_name_forbidden_chars;
1861 len = G_N_ELEMENTS (folder_name_forbidden_chars);
1863 case USER_NAME_FORBIDDEN_NAMES:
1864 forbidden_chars = user_name_forbidden_chars;
1865 len = G_N_ELEMENTS (user_name_forbidden_chars);
1868 g_return_val_if_reached (TRUE);
1871 for (i = 0; i < len ; i++)
1872 if (forbidden_chars[i] == character)
1875 return FALSE; /* it's valid! */
1879 modest_text_utils_label_get_selection (GtkLabel *label)
1884 if (gtk_label_get_selection_bounds (GTK_LABEL (label), &start, &end)) {
1885 const gchar *start_offset;
1886 const gchar *end_offset;
1887 start_offset = gtk_label_get_text (GTK_LABEL (label));
1888 start_offset = g_utf8_offset_to_pointer (start_offset, start);
1889 end_offset = gtk_label_get_text (GTK_LABEL (label));
1890 end_offset = g_utf8_offset_to_pointer (end_offset, end);
1891 selection = g_strndup (start_offset, end_offset - start_offset);
1894 return g_strdup ("");
1899 _forward_search_image_char (gunichar ch,
1902 return (ch == 0xFFFC);
1906 modest_text_utils_buffer_selection_is_valid (GtkTextBuffer *buffer)
1909 GtkTextIter start, end;
1911 g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), FALSE);
1913 result = gtk_text_buffer_get_has_selection (GTK_TEXT_BUFFER (buffer));
1915 /* check there are no images in selection */
1917 gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
1918 if (gtk_text_iter_get_char (&start)== 0xFFFC)
1921 gtk_text_iter_backward_char (&end);
1922 if (gtk_text_iter_forward_find_char (&start, _forward_search_image_char,
1933 remove_quotes (gchar **quotes)
1935 if (g_str_has_prefix (*quotes, "\"") && g_str_has_suffix (*quotes, "\"")) {
1937 result = g_strndup ((*quotes)+1, strlen (*quotes) - 2);
1944 remove_extra_spaces (gchar *string)
1949 while (start && start[0] != '\0') {
1950 if ((start[0] == ' ') && (start[1] == ' ')) {
1951 g_strchug (start+1);
1958 modest_text_utils_escape_mnemonics (const gchar *text)
1961 GString *result = NULL;
1966 result = g_string_new ("");
1967 for (p = text; *p != '\0'; p++) {
1969 result = g_string_append (result, "__");
1971 result = g_string_append_c (result, *p);
1974 return g_string_free (result, FALSE);
1978 modest_text_utils_simplify_recipients (const gchar *recipients)
1980 GSList *addresses, *node;
1982 gboolean is_first = TRUE;
1984 if (recipients == NULL)
1985 return g_strdup ("");
1987 addresses = modest_text_utils_split_addresses_list (recipients);
1988 result = g_string_new ("");
1990 for (node = addresses; node != NULL; node = g_slist_next (node)) {
1991 const gchar *address = (const gchar *) node->data;
1992 gchar *left_limit, *right_limit;
1994 left_limit = strstr (address, "<");
1995 right_limit = g_strrstr (address, ">");
2000 result = g_string_append (result, ", ");
2002 if ((left_limit == NULL)||(right_limit == NULL)|| (left_limit > right_limit)) {
2003 result = g_string_append (result, address);
2007 name_side = g_strndup (address, left_limit - address);
2008 name_side = g_strstrip (name_side);
2009 remove_quotes (&name_side);
2010 email_side = get_email_from_address (address);
2011 if (name_side && email_side && !strcmp (name_side, email_side)) {
2012 result = g_string_append (result, email_side);
2014 result = g_string_append (result, address);
2017 g_free (email_side);
2021 g_slist_foreach (addresses, (GFunc)g_free, NULL);
2022 g_slist_free (addresses);
2024 return g_string_free (result, FALSE);
2029 modest_text_utils_remove_duplicate_addresses_list (GSList *address_list)
2031 GSList *new_list, *iter;
2034 g_return_val_if_fail (address_list, NULL);
2036 table = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
2038 new_list = address_list;
2039 iter = address_list;
2041 const gchar* address = (const gchar*)iter->data;
2043 /* We need only the email to just compare it and not
2044 the full address which would make "a <a@a.com>"
2045 different from "a@a.com" */
2046 const gchar *email = get_email_from_address (address);
2048 /* ignore the address if already seen */
2049 if (g_hash_table_lookup (table, email) == 0) {
2050 g_hash_table_insert (table, (gchar*)email, GINT_TO_POINTER(1));
2051 iter = g_slist_next (iter);
2053 GSList *tmp = g_slist_next (iter);
2054 new_list = g_slist_delete_link (new_list, iter);
2059 g_hash_table_unref (table);
2065 modest_text_utils_get_secure_header (const gchar *value,
2066 const gchar *header)
2068 const gint max_len = 16384;
2069 gchar *new_value = NULL;
2070 gchar *needle = g_strrstr (value, header);
2072 if (needle && value != needle)
2073 new_value = g_strdup (needle + strlen (header));
2076 new_value = g_strdup (value);
2078 /* Do a max length check to prevent DoS attacks caused by huge
2079 malformed headers */
2080 if (g_utf8_validate (new_value, -1, NULL)) {
2081 if (g_utf8_strlen (new_value, -1) > max_len) {
2082 gchar *tmp = g_malloc0 (max_len * 4);
2083 g_utf8_strncpy (tmp, (const gchar *) new_value, max_len);
2088 if (strlen (new_value) > max_len) {
2089 gchar *tmp = g_malloc0 (max_len);
2090 strncpy (new_value, tmp, max_len);
2100 is_quoted (const char *start, const gchar *end)
2104 c = (gchar *) start;
2106 c = g_utf8_next_char (c);
2108 if (*c == '\0' || *c != '\"')
2112 while (*c == ' ' && c != start)
2113 c = g_utf8_prev_char (c);
2115 if (c == start || *c != '\"')
2123 quote_name_part (GString **str, gchar **cur, gchar **start)
2126 gint str_len = g_utf8_pointer_to_offset (*start, *cur) -
2127 g_utf8_pointer_to_offset (*start, *start);
2129 while (**start == ' ') {
2130 *start = g_utf8_next_char (*start);
2134 blank = g_utf8_strrchr (*start, str_len, g_utf8_get_char (" "));
2135 if (blank && (blank != *start)) {
2136 if (is_quoted (*start, blank - 1)) {
2137 *str = g_string_append_len (*str, *start, str_len);
2138 *str = g_string_append (*str, ";");
2139 *start = g_utf8_next_char (*cur);
2141 *str = g_string_append_c (*str, '"');
2142 *str = g_string_append_len (*str, *start,
2143 (g_utf8_pointer_to_offset (*start, blank) -
2144 g_utf8_pointer_to_offset (*start, *start)));
2145 *str = g_string_append_c (*str, '"');
2146 *str = g_string_append_len (*str, blank,
2147 (g_utf8_pointer_to_offset (*start, *cur) -
2148 g_utf8_pointer_to_offset (*start, blank)));
2149 *str = g_string_append (*str, ";");
2150 *start = g_utf8_next_char (*cur);
2153 *str = g_string_append_len (*str, *start, str_len);
2154 *str = g_string_append (*str, ";");
2155 *start = g_utf8_next_char (*cur);
2160 modest_text_utils_quote_names (const gchar *recipients)
2165 str = g_string_new ("");
2166 start = (gchar*) recipients;
2167 cur = (gchar*) recipients;
2169 for (cur = start; *cur != '\0'; cur = g_utf8_next_char (cur)) {
2170 if (*cur == ',' || *cur == ';') {
2171 if (!g_utf8_strchr (start, (cur - start + 1), g_utf8_get_char ("@")))
2173 quote_name_part (&str, &cur, &start);
2177 quote_name_part (&str, &cur, &start);
2179 return g_string_free (str, FALSE);