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);
168 /* ******************************************************************* */
169 /* ************************* PUBLIC FUNCTIONS ************************ */
170 /* ******************************************************************* */
173 modest_text_utils_quote (const gchar *text,
174 const gchar *content_type,
175 const gchar *signature,
177 const time_t sent_date,
181 gchar *retval, *cited;
183 g_return_val_if_fail (text, NULL);
184 g_return_val_if_fail (content_type, NULL);
186 cited = cite (sent_date, from);
188 if (content_type && strcmp (content_type, "text/html") == 0)
189 /* TODO: extract the <body> of the HTML and pass it to
191 retval = modest_text_utils_quote_html (text, cited, signature, attachments, limit);
193 retval = modest_text_utils_quote_plain_text (text, cited, signature, attachments, limit);
202 modest_text_utils_cite (const gchar *text,
203 const gchar *content_type,
204 const gchar *signature,
211 g_return_val_if_fail (text, NULL);
212 g_return_val_if_fail (content_type, NULL);
215 tmp_sig = g_strdup (text);
217 tmp_sig = g_strconcat (text, "\n", MODEST_TEXT_UTILS_SIGNATURE_MARKER, "\n", signature, NULL);
220 if (strcmp (content_type, "text/html") == 0) {
221 retval = modest_text_utils_convert_to_html_body (tmp_sig, -1, TRUE);
231 forward_cite (const gchar *from,
234 const gchar *subject)
236 g_return_val_if_fail (sent, NULL);
238 return g_strdup_printf ("%s\n%s %s\n%s %s\n%s %s\n%s %s\n",
240 FROM_STRING, (from)?from:"",
242 TO_STRING, (to)?to:"",
243 SUBJECT_STRING, (subject)?subject:"");
247 modest_text_utils_inline (const gchar *text,
248 const gchar *content_type,
249 const gchar *signature,
253 const gchar *subject)
259 g_return_val_if_fail (text, NULL);
260 g_return_val_if_fail (content_type, NULL);
262 modest_text_utils_strftime (sent_str, 100, "%c", sent_date);
264 cited = forward_cite (from, sent_str, to, subject);
266 if (content_type && strcmp (content_type, "text/html") == 0)
267 retval = modest_text_utils_quote_html (text, cited, signature, NULL, 80);
269 retval = modest_text_utils_quote_plain_text (text, cited, signature, NULL, 80);
275 /* just to prevent warnings:
276 * warning: `%x' yields only last 2 digits of year in some locales
279 modest_text_utils_strftime(char *s, gsize max, const char *fmt, time_t timet)
283 /* To prevent possible problems in strftime that could leave
284 garbage in the s variable */
290 /* does not work on old maemo glib:
291 * g_date_set_time_t (&date, timet);
293 localtime_r (&timet, &tm);
294 return strftime(s, max, fmt, &tm);
298 modest_text_utils_derived_subject (const gchar *subject, const gchar *prefix)
300 gchar *tmp, *subject_dup, *retval;
303 g_return_val_if_fail (prefix, NULL);
305 if (!subject || subject[0] == '\0')
306 subject = _("mail_va_no_subject");
308 subject_dup = g_strdup (subject);
309 tmp = g_strchug (subject_dup);
311 /* We do not want things like "Re: Re: Re:" or "Fw: Fw:" so
312 delete the previous ones */
313 prefix_len = strlen (prefix);
315 if (g_str_has_prefix (tmp, prefix)) {
317 tmp = g_strchug (tmp);
319 gchar *prefix_down, *tmp_down;
321 /* We need this to properly check the cases of
322 some clients adding FW: instead of Fw: for
324 prefix_down = g_utf8_strdown (prefix, -1);
325 tmp_down = g_utf8_strdown (tmp, -1);
326 if (g_str_has_prefix (tmp_down, prefix_down)) {
328 tmp = g_strchug (tmp);
329 g_free (prefix_down);
332 g_free (prefix_down);
339 retval = g_strdup_printf ("%s %s", prefix, tmp);
340 g_free (subject_dup);
346 modest_text_utils_remove_address (const gchar *address_list, const gchar *address)
348 gchar *dup, *token, *ptr = NULL, *result;
349 GString *filtered_emails;
350 gchar *email_address;
352 g_return_val_if_fail (address_list, NULL);
355 return g_strdup (address_list);
357 email_address = get_email_from_address (address);
359 /* search for substring */
360 if (!strstr ((const char *) address_list, (const char *) email_address)) {
361 g_free (email_address);
362 return g_strdup (address_list);
365 dup = g_strdup (address_list);
366 filtered_emails = g_string_new (NULL);
368 token = strtok_r (dup, ",", &ptr);
370 while (token != NULL) {
371 /* Add to list if not found */
372 if (!strstr ((const char *) token, (const char *) email_address)) {
373 if (filtered_emails->len == 0)
374 g_string_append_printf (filtered_emails, "%s", g_strstrip (token));
376 g_string_append_printf (filtered_emails, ",%s", g_strstrip (token));
378 token = strtok_r (NULL, ",", &ptr);
380 result = filtered_emails->str;
383 g_free (email_address);
385 g_string_free (filtered_emails, FALSE);
392 modest_text_utils_remove_duplicate_addresses (const gchar *address_list)
394 GSList *addresses, *cursor;
396 gchar *new_list = NULL;
398 g_return_val_if_fail (address_list, NULL);
400 table = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
401 addresses = modest_text_utils_split_addresses_list (address_list);
405 const gchar* address = (const gchar*)cursor->data;
407 /* We need only the email to just compare it and not
408 the full address which would make "a <a@a.com>"
409 different from "a@a.com" */
410 const gchar *email = get_email_from_address (address);
412 /* ignore the address if already seen */
413 if (g_hash_table_lookup (table, email) == 0) {
416 /* Include the full address and not only the
417 email in the returned list */
419 tmp = g_strdup (address);
421 tmp = g_strjoin (",", new_list, address, NULL);
426 g_hash_table_insert (table, (gchar*)email, GINT_TO_POINTER(1));
428 cursor = g_slist_next (cursor);
431 g_hash_table_unref (table);
432 g_slist_foreach (addresses, (GFunc)g_free, NULL);
433 g_slist_free (addresses);
435 if (new_list == NULL)
436 new_list = g_strdup ("");
443 modest_text_utils_convert_buffer_to_html_start (GString *html, const gchar *data, gssize n)
446 gboolean space_seen = FALSE;
447 guint break_dist = 0; /* distance since last break point */
452 /* replace with special html chars where needed*/
453 for (i = 0; i != n; ++i) {
454 guchar kar = data[i];
456 if (space_seen && kar != ' ') {
457 g_string_append (html, " ");
461 /* we artificially insert a breakpoint (newline)
462 * after 256, to make sure our lines are not so long
463 * they will DOS the regexping later
464 * Also, check that kar is ASCII to make sure that we
465 * don't break a UTF8 char in two
467 if (++break_dist >= 256 && kar < 127) {
468 g_string_append_c (html, '\n');
476 /* this is a temp place holder for '&'; we can only
477 * set the real '&' after hyperlink translation, otherwise
478 * we might screw that up */
479 break; /* ignore embedded \0s and MARK_AMP */
480 case '<' : g_string_append (html, MARK_AMP_STR "lt;"); break;
481 case '>' : g_string_append (html, MARK_AMP_STR "gt;"); break;
482 case '&' : g_string_append (html, MARK_AMP_URI_STR "amp;"); break; /* special case */
483 case '"' : g_string_append (html, MARK_AMP_STR "quot;"); break;
485 /* don't convert ' --> wpeditor will try to re-convert it... */
486 //case '\'' : g_string_append (html, "'"); break;
487 case '\n' : g_string_append (html, "<br>\n");break_dist= 0; break;
488 case '\t' : g_string_append (html, MARK_AMP_STR "nbsp;" MARK_AMP_STR "nbsp;" MARK_AMP_STR "nbsp; ");
489 break_dist=0; break; /* note the space at the end*/
492 if (space_seen) { /* second space in a row */
493 g_string_append (html, " ");
498 g_string_append_c (html, kar);
505 modest_text_utils_convert_buffer_to_html_finish (GString *html)
508 /* replace all our MARK_AMPs with real ones */
509 for (i = 0; i != html->len; ++i)
510 if ((html->str)[i] == MARK_AMP || (html->str)[i] == MARK_AMP_URI)
511 (html->str)[i] = '&';
516 modest_text_utils_convert_to_html (const gchar *data)
521 g_return_val_if_fail (data, NULL);
527 html = g_string_sized_new (1.5 * len); /* just a guess... */
529 g_string_append_printf (html,
531 "<meta http-equiv=\"content-type\" content=\"text/html; charset=utf8\">"
535 modest_text_utils_convert_buffer_to_html_start (html, data, -1);
537 g_string_append (html, "</body></html>");
539 if (len <= HYPERLINKIFY_MAX_LENGTH)
540 hyperlinkify_plain_text (html, 0);
542 modest_text_utils_convert_buffer_to_html_finish (html);
544 return g_string_free (html, FALSE);
548 modest_text_utils_convert_to_html_body (const gchar *data, gssize n, gboolean hyperlinkify)
552 g_return_val_if_fail (data, NULL);
559 html = g_string_sized_new (1.5 * n); /* just a guess... */
561 modest_text_utils_convert_buffer_to_html_start (html, data, n);
563 if (hyperlinkify && (n < HYPERLINKIFY_MAX_LENGTH))
564 hyperlinkify_plain_text (html, 0);
566 modest_text_utils_convert_buffer_to_html_finish (html);
568 return g_string_free (html, FALSE);
572 modest_text_utils_get_addresses_indexes (const gchar *addresses, GSList **start_indexes, GSList **end_indexes)
574 gchar *current, *start, *last_blank;
575 gint start_offset = 0, current_offset = 0;
577 g_return_if_fail (start_indexes != NULL);
578 g_return_if_fail (end_indexes != NULL);
580 start = (gchar *) addresses;
584 while (*current != '\0') {
585 if ((start == current)&&((*current == ' ')||(*current == ',')||(*current == ';'))) {
586 start = g_utf8_next_char (start);
588 last_blank = current;
589 } else if ((*current == ',')||(*current == ';')) {
590 gint *start_index, *end_index;
591 start_index = g_new0(gint, 1);
592 end_index = g_new0(gint, 1);
593 *start_index = start_offset;
594 *end_index = current_offset;
595 *start_indexes = g_slist_prepend (*start_indexes, start_index);
596 *end_indexes = g_slist_prepend (*end_indexes, end_index);
597 start = g_utf8_next_char (current);
598 start_offset = current_offset + 1;
600 } else if (*current == '"') {
601 current = g_utf8_next_char (current);
603 while ((*current != '"')&&(*current != '\0')) {
604 current = g_utf8_next_char (current);
609 current = g_utf8_next_char (current);
613 if (start != current) {
614 gint *start_index, *end_index;
615 start_index = g_new0(gint, 1);
616 end_index = g_new0(gint, 1);
617 *start_index = start_offset;
618 *end_index = current_offset;
619 *start_indexes = g_slist_prepend (*start_indexes, start_index);
620 *end_indexes = g_slist_prepend (*end_indexes, end_index);
623 *start_indexes = g_slist_reverse (*start_indexes);
624 *end_indexes = g_slist_reverse (*end_indexes);
631 modest_text_utils_split_addresses_list (const gchar *addresses)
634 const gchar *my_addrs = addresses;
637 gboolean after_at = FALSE;
639 g_return_val_if_fail (addresses, NULL);
641 /* skip any space, ',', ';' at the start */
642 while (my_addrs && (my_addrs[0] == ' ' || my_addrs[0] == ',' || my_addrs[0] == ';'))
645 /* are we at the end of addresses list? */
649 /* nope, we are at the start of some address
650 * now, let's find the end of the address */
652 while (end[0] && end[0] != ';' && !(after_at && end[0] == ',')) {
653 if (end[0] == '\"') {
654 while (end[0] && end[0] != '\"')
660 if ((end[0] && end[0] == '>')&&(end[1] && end[1] == ',')) {
667 /* we got the address; copy it and remove trailing whitespace */
668 addr = g_strndup (my_addrs, end - my_addrs);
671 head = g_slist_append (NULL, addr);
672 head->next = modest_text_utils_split_addresses_list (end); /* recurse */
679 modest_text_utils_address_range_at_position (const gchar *recipients_list,
684 gchar *current = NULL;
685 gint range_start = 0;
688 gboolean is_quoted = FALSE;
690 g_return_if_fail (recipients_list);
691 g_return_if_fail (position < g_utf8_strlen(recipients_list, -1));
694 for (current = (gchar *) recipients_list; *current != '\0';
695 current = g_utf8_find_next_char (current, NULL)) {
696 gunichar c = g_utf8_get_char (current);
698 if ((c == ',') && (!is_quoted)) {
699 if (index < position) {
700 range_start = index + 1;
704 } else if (c == '\"') {
705 is_quoted = !is_quoted;
706 } else if ((c == ' ') &&(range_start == index)) {
714 *start = range_start;
720 modest_text_utils_address_with_standard_length (const gchar *recipients_list)
724 GString *buffer = g_string_new ("");
726 splitted = g_strsplit (recipients_list, "\n", 0);
730 if (current != splitted)
731 buffer = g_string_append_c (buffer, '\n');
732 line = g_strndup (*splitted, 1000);
733 buffer = g_string_append (buffer, line);
738 g_strfreev (splitted);
740 return g_string_free (buffer, FALSE);
744 /* ******************************************************************* */
745 /* ************************* UTILIY FUNCTIONS ************************ */
746 /* ******************************************************************* */
749 get_next_line (const gchar * b, const gsize blen, const gchar * iter)
755 return g_string_new("");
763 gs = g_string_new_len (i0, iter - i0);
767 get_indent_level (const char *l)
784 /* if we hit the signature marker "-- ", we return -(indent + 1). This
785 * stops reformatting.
787 if (strcmp (l, MODEST_TEXT_UTILS_SIGNATURE_MARKER) == 0) {
795 unquote_line (GString * l, const gchar *quote_symbol)
801 quote_len = strlen (quote_symbol);
803 if (g_str_has_prefix (p, quote_symbol)) {
804 if (p[quote_len] == ' ') {
812 g_string_erase (l, 0, p - l->str);
816 append_quoted (GString * buf, const gchar *quote_symbol,
817 int indent, const GString * str,
823 indent = indent < 0 ? abs (indent) - 1 : indent;
824 quote_concat = g_strconcat (quote_symbol, " ", NULL);
825 for (i = 0; i <= indent; i++) {
826 g_string_append (buf, quote_concat);
828 g_free (quote_concat);
830 g_string_append_len (buf, str->str, cutpoint);
832 g_string_append (buf, str->str);
834 g_string_append (buf, "\n");
838 get_breakpoint_utf8 (const gchar * s, gint indent, const gint limit)
841 const gchar *pos, *last;
844 indent = indent < 0 ? abs (indent) - 1 : indent;
848 uni = g_utf8_to_ucs4_fast (s, -1, NULL);
850 if ((index + 2 * indent > limit) && last) {
854 if (g_unichar_isspace (uni[index])) {
857 pos = g_utf8_next_char (pos);
865 get_breakpoint_ascii (const gchar * s, const gint indent, const gint limit)
870 if (last + 2 * indent < limit)
873 for (i = strlen (s); i > 0; i--) {
875 if (i + 2 * indent <= limit) {
886 get_breakpoint (const gchar * s, const gint indent, const gint limit)
889 if (g_utf8_validate (s, -1, NULL)) {
890 return get_breakpoint_utf8 (s, indent, limit);
891 } else { /* assume ASCII */
892 //g_warning("invalid UTF-8 in msg");
893 return get_breakpoint_ascii (s, indent, limit);
898 cite (const time_t sent_date, const gchar *from)
900 return g_strdup (_("mcen_ia_editor_original_message"));
904 quoted_attachments (GList *attachments)
907 GString *result = g_string_new ("");
908 for (node = attachments; node != NULL; node = g_list_next (node)) {
909 gchar *filename = (gchar *) node->data;
910 g_string_append_printf ( result, "%s %s\n", _("mcen_ia_editor_attach_filename"), filename);
913 return g_string_free (result, FALSE);
918 modest_text_utils_quote_body (GString *output, const gchar *text,
919 const gchar *quote_symbol,
925 gint indent, breakpoint, rem_indent = 0;
926 GString *l, *remaining;
930 remaining = g_string_new ("");
932 l = get_next_line (text, len, iter);
933 iter = iter + l->len + 1;
934 indent = get_indent_level (l->str);
935 unquote_line (l, quote_symbol);
937 if (remaining->len) {
938 if (l->len && indent == rem_indent) {
939 g_string_prepend (l, " ");
940 g_string_prepend (l, remaining->str);
944 get_breakpoint (remaining->str,
947 append_quoted (output, quote_symbol, rem_indent,
948 remaining, breakpoint);
949 g_string_erase (remaining, 0,
951 if (remaining->str[0] == ' ') {
952 g_string_erase (remaining, 0,
955 } while (remaining->len);
958 g_string_free (remaining, TRUE);
959 breakpoint = get_breakpoint (l->str, indent, limit);
960 remaining = g_string_new (l->str + breakpoint);
961 if (remaining->str[0] == ' ') {
962 g_string_erase (remaining, 0, 1);
965 append_quoted (output, quote_symbol, indent, l, breakpoint);
966 g_string_free (l, TRUE);
967 } while ((iter < text + len) || (remaining->str[0]));
973 modest_text_utils_quote_plain_text (const gchar *text,
975 const gchar *signature,
980 gchar *attachments_string = NULL;
982 q = g_string_new ("");
984 if (signature != NULL) {
985 g_string_append_printf (q, "\n%s\n", MODEST_TEXT_UTILS_SIGNATURE_MARKER);
986 q = g_string_append (q, signature);
989 q = g_string_append (q, "\n");
990 q = g_string_append (q, cite);
991 q = g_string_append_c (q, '\n');
993 q = modest_text_utils_quote_body (q, text, ">", limit);
995 attachments_string = quoted_attachments (attachments);
996 q = g_string_append (q, attachments_string);
997 g_free (attachments_string);
999 return g_string_free (q, FALSE);
1003 quote_html_add_to_gstring (GString *string,
1006 if (text && strcmp (text, "")) {
1007 gchar *html_text = modest_text_utils_convert_to_html_body (text, -1, TRUE);
1008 g_string_append_printf (string, "%s<br/>", html_text);
1014 modest_text_utils_quote_html (const gchar *text,
1016 const gchar *signature,
1020 GString *result_string;
1024 "<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">\n" \
1028 if (text || cite || signature) {
1029 GString *quoted_text;
1030 g_string_append (result_string, "<pre>\n");
1032 quote_html_add_to_gstring (result_string, MODEST_TEXT_UTILS_SIGNATURE_MARKER);
1033 quote_html_add_to_gstring (result_string, signature);
1035 quote_html_add_to_gstring (result_string, cite);
1036 quoted_text = g_string_new ("");
1037 quoted_text = modest_text_utils_quote_body (quoted_text, (text) ? text : "", ">", limit);
1038 quote_html_add_to_gstring (result_string, quoted_text->str);
1039 g_string_free (quoted_text, TRUE);
1041 gchar *attachments_string = quoted_attachments (attachments);
1042 quote_html_add_to_gstring (result_string, attachments_string);
1043 g_free (attachments_string);
1045 g_string_append (result_string, "</pre>");
1047 g_string_append (result_string, "</body>");
1048 g_string_append (result_string, "</html>");
1050 return g_string_free (result_string, FALSE);
1054 cmp_offsets_reverse (const url_match_t *match1, const url_match_t *match2)
1056 return match2->offset - match1->offset;
1059 static gint url_matches_block = 0;
1060 static url_match_pattern_t patterns[] = MAIL_VIEWER_URL_MATCH_PATTERNS;
1061 static GMutex *url_patterns_mutex = NULL;
1068 const size_t pattern_num = sizeof(patterns)/sizeof(url_match_pattern_t);
1069 for (i = 0; i != pattern_num; ++i) {
1070 patterns[i].preg = g_slice_new0 (regex_t);
1072 /* this should not happen */
1073 if (regcomp (patterns[i].preg, patterns[i].regex,
1074 REG_ICASE|REG_EXTENDED|REG_NEWLINE) != 0) {
1075 g_warning ("%s: error in regexp:\n%s\n", __FUNCTION__, patterns[i].regex);
1086 const size_t pattern_num = sizeof(patterns)/sizeof(url_match_pattern_t);
1087 for (i = 0; i != pattern_num; ++i) {
1088 regfree (patterns[i].preg);
1089 g_slice_free (regex_t, patterns[i].preg);
1090 } /* don't free patterns itself -- it's static */
1094 modest_text_utils_hyperlinkify_begin (void)
1097 if (url_patterns_mutex == NULL) {
1098 url_patterns_mutex = g_mutex_new ();
1100 g_mutex_lock (url_patterns_mutex);
1101 if (url_matches_block == 0)
1102 compile_patterns ();
1103 url_matches_block ++;
1104 g_mutex_unlock (url_patterns_mutex);
1108 modest_text_utils_hyperlinkify_end (void)
1110 g_mutex_lock (url_patterns_mutex);
1111 url_matches_block--;
1112 if (url_matches_block <= 0)
1114 g_mutex_unlock (url_patterns_mutex);
1119 get_url_matches (GString *txt, gint offset)
1122 guint rv, i, tmp_offset = 0;
1123 GSList *match_list = NULL;
1125 const size_t pattern_num = sizeof(patterns)/sizeof(url_match_pattern_t);
1127 /* initalize the regexps */
1128 modest_text_utils_hyperlinkify_begin ();
1130 /* find all the matches */
1131 for (i = 0; i != pattern_num; ++i) {
1132 tmp_offset = offset;
1135 gboolean is_submatch;
1138 if ((rv = regexec (patterns[i].preg, txt->str + tmp_offset, 1, &rm, 0)) != 0) {
1139 g_return_val_if_fail (rv == REG_NOMATCH, NULL); /* this should not happen */
1140 break; /* try next regexp */
1145 is_submatch = FALSE;
1146 /* check old matches to see if this has already been matched */
1147 cursor = match_list;
1148 while (cursor && !is_submatch) {
1149 const url_match_t *old_match =
1150 (const url_match_t *) cursor->data;
1151 guint new_offset = tmp_offset + rm.rm_so;
1152 is_submatch = (new_offset > old_match->offset &&
1153 new_offset < old_match->offset + old_match->len);
1154 cursor = g_slist_next (cursor);
1158 /* make a list of our matches (<offset, len, prefix> tupels)*/
1159 match = g_slice_new (url_match_t);
1160 match->offset = tmp_offset + rm.rm_so;
1161 match->len = rm.rm_eo - rm.rm_so;
1162 match->prefix = patterns[i].prefix;
1163 match_list = g_slist_prepend (match_list, match);
1165 tmp_offset += rm.rm_eo;
1169 modest_text_utils_hyperlinkify_end ();
1171 /* now sort the list, so the matches are in reverse order of occurence.
1172 * that way, we can do the replacements starting from the end, so we don't need
1173 * to recalculate the offsets
1175 match_list = g_slist_sort (match_list,
1176 (GCompareFunc)cmp_offsets_reverse);
1182 /* replace all occurences of needle in haystack with repl*/
1184 replace_string (const gchar *haystack, const gchar *needle, gchar repl)
1186 gchar *str, *cursor;
1188 if (!haystack || !needle || strlen(needle) == 0)
1189 return haystack ? g_strdup(haystack) : NULL;
1191 str = g_strdup (haystack);
1193 for (cursor = str; cursor && *cursor; ++cursor) {
1194 if (g_str_has_prefix (cursor, needle)) {
1196 memmove (cursor + 1,
1197 cursor + strlen (needle),
1198 strlen (cursor + strlen (needle)) + 1);
1206 hyperlinkify_plain_text (GString *txt, gint offset)
1209 GSList *match_list = get_url_matches (txt, offset);
1211 /* we will work backwards, so the offsets stay valid */
1212 for (cursor = match_list; cursor; cursor = cursor->next) {
1214 url_match_t *match = (url_match_t*) cursor->data;
1215 gchar *url = g_strndup (txt->str + match->offset, match->len);
1216 gchar *repl = NULL; /* replacement */
1218 /* the string still contains $(MARK_AMP_URI_STR)"amp;" for each
1219 * '&' in the original, because of the text->html conversion.
1220 * in the href-URL (and only there), we must convert that back to
1223 gchar *href_url = replace_string (url, MARK_AMP_URI_STR "amp;", '&');
1225 /* the prefix is NULL: use the one that is already there */
1226 repl = g_strdup_printf ("<a href=\"%s%s\">%s</a>",
1227 match->prefix ? match->prefix : EMPTY_STRING,
1230 /* replace the old thing with our hyperlink
1231 * replacement thing */
1232 g_string_erase (txt, match->offset, match->len);
1233 g_string_insert (txt, match->offset, repl);
1239 g_slice_free (url_match_t, match);
1242 g_slist_free (match_list);
1246 modest_text_utils_hyperlinkify (GString *string_buffer)
1251 after_body = strstr (string_buffer->str, "<body>");
1252 if (after_body != NULL)
1253 offset = after_body - string_buffer->str;
1254 hyperlinkify_plain_text (string_buffer, offset);
1258 /* for optimization reasons, we change the string in-place */
1260 modest_text_utils_get_display_address (gchar *address)
1264 g_return_if_fail (address);
1269 /* should not be needed, and otherwise, we probably won't screw up the address
1270 * more than it already is :)
1271 * g_return_val_if_fail (g_utf8_validate (address, -1, NULL), NULL);
1274 /* remove leading whitespace */
1275 if (address[0] == ' ')
1276 g_strchug (address);
1278 for (i = 0; address[i]; ++i) {
1279 if (address[i] == '<') {
1280 if (G_UNLIKELY(i == 0)) {
1281 break; /* there's nothing else, leave it */
1283 address[i] = '\0'; /* terminate the string here */
1289 g_strchomp (address);
1294 modest_text_utils_get_display_addresses (const gchar *recipients)
1297 GSList *recipient_list;
1300 recipient_list = modest_text_utils_split_addresses_list (recipients);
1301 if (recipient_list) {
1302 GString *add_string = g_string_sized_new (strlen (recipients));
1303 GSList *iter = recipient_list;
1304 gboolean first = TRUE;
1307 /* Strings are changed in place */
1308 modest_text_utils_get_display_address ((gchar *) iter->data);
1309 if (G_UNLIKELY (first)) {
1310 g_string_append_printf (add_string, "%s", (gchar *) iter->data);
1313 g_string_append_printf (add_string, ", %s", (gchar *) iter->data);
1315 iter = g_slist_next (iter);
1317 g_slist_foreach (recipient_list, (GFunc) g_free, NULL);
1318 g_slist_free (recipient_list);
1319 addresses = g_string_free (add_string, FALSE);
1327 modest_text_utils_get_email_address (const gchar *full_address)
1329 const gchar *left, *right;
1331 g_return_val_if_fail (full_address, NULL);
1336 g_return_val_if_fail (g_utf8_validate (full_address, -1, NULL), NULL);
1338 left = g_strrstr_len (full_address, strlen(full_address), "<");
1340 return g_strdup (full_address);
1342 right = g_strstr_len (left, strlen(left), ">");
1344 return g_strdup (full_address);
1346 return g_strndup (left + 1, right - left - 1);
1350 modest_text_utils_get_subject_prefix_len (const gchar *sub)
1352 gint prefix_len = 0;
1354 g_return_val_if_fail (sub, 0);
1359 /* optimization: "Re", "RE", "re","Fwd", "FWD", "fwd","FW","Fw", "fw" */
1360 if (sub[0] != 'R' && sub[0] != 'F' && sub[0] != 'r' && sub[0] != 'f')
1362 else if (sub[0] && sub[1] != 'e' && sub[1] != 'E' && sub[1] != 'w' && sub[1] != 'W')
1369 /* skip over a [...] block */
1370 if (sub[prefix_len] == '[') {
1371 int c = prefix_len + 1;
1372 while (sub[c] && sub[c] != ']')
1375 return 0; /* no end to the ']' found */
1380 /* did we find the ':' ? */
1381 if (sub[prefix_len] == ':') {
1383 if (sub[prefix_len] == ' ')
1385 prefix_len += modest_text_utils_get_subject_prefix_len (sub + prefix_len);
1386 /* g_warning ("['%s','%s']", sub, (char*) sub + prefix_len); */
1394 modest_text_utils_utf8_strcmp (const gchar* s1, const gchar *s2, gboolean insensitive)
1397 /* work even when s1 and/or s2 == NULL */
1398 if (G_UNLIKELY(s1 == s2))
1400 if (G_UNLIKELY(!s1))
1402 if (G_UNLIKELY(!s2))
1405 /* if it's not case sensitive */
1408 /* optimization: shortcut if first char is ascii */
1409 if (((s1[0] & 0x80)== 0) && ((s2[0] & 0x80) == 0) &&
1411 return s1[0] - s2[0];
1413 return g_utf8_collate (s1, s2);
1419 /* optimization: shortcut if first char is ascii */
1420 if (((s1[0] & 0x80) == 0) && ((s2[0] & 0x80) == 0) &&
1421 (tolower(s1[0]) != tolower (s2[0])))
1422 return tolower(s1[0]) - tolower(s2[0]);
1424 n1 = g_utf8_strdown (s1, -1);
1425 n2 = g_utf8_strdown (s2, -1);
1427 result = g_utf8_collate (n1, n2);
1438 modest_text_utils_get_display_date (time_t date)
1440 #define DATE_BUF_SIZE 64
1441 static gchar date_buf[DATE_BUF_SIZE];
1443 /* calculate the # of days since epoch for
1444 * for today and for the date provided
1445 * based on idea from pvanhoof */
1446 int day = time(NULL) / (24 * 60 * 60);
1447 int date_day = date / (24 * 60 * 60);
1449 /* if it's today, show the time, if it's not today, show the date instead */
1451 /* TODO: take into account the system config for 24/12h */
1452 #ifdef MODEST_TOOLKIT_HILDON2
1453 if (day == date_day) /* is the date today? */
1454 modest_text_utils_strftime (date_buf, DATE_BUF_SIZE, _HL("wdgt_va_24h_time"), date);
1456 modest_text_utils_strftime (date_buf, DATE_BUF_SIZE, _HL("wdgt_va_date"), date);
1458 if (day == date_day) /* is the date today? */
1459 modest_text_utils_strftime (date_buf, DATE_BUF_SIZE, "%X", date);
1461 modest_text_utils_strftime (date_buf, DATE_BUF_SIZE, "%x", date);
1464 return date_buf; /* this is a static buffer, don't free! */
1470 modest_text_utils_validate_folder_name (const gchar *folder_name)
1472 /* based on http://msdn2.microsoft.com/en-us/library/aa365247.aspx,
1473 * with some extras */
1477 const gchar **cursor = NULL;
1478 const gchar *forbidden_names[] = { /* windows does not like these */
1479 "CON", "PRN", "AUX", "NUL", ".", "..", "cur", "tmp", "new",
1480 NULL /* cur, tmp, new are reserved for Maildir */
1483 /* cannot be NULL */
1487 /* cannot be empty */
1488 len = strlen(folder_name);
1492 /* cannot start with a dot, vfat does not seem to like that */
1493 if (folder_name[0] == '.')
1496 /* cannot start or end with a space */
1497 if (g_ascii_isspace(folder_name[0]) || g_ascii_isspace(folder_name[len - 1]))
1500 /* cannot contain a forbidden char */
1501 for (i = 0; i < len; i++)
1502 if (modest_text_utils_is_forbidden_char (folder_name[i], FOLDER_NAME_FORBIDDEN_CHARS))
1505 /* Cannot contain Windows port numbers. I'd like to use GRegex
1506 but it's still not available in Maemo. sergio */
1507 if (!g_ascii_strncasecmp (folder_name, "LPT", 3) ||
1508 !g_ascii_strncasecmp (folder_name, "COM", 3)) {
1512 /* We skip the first 3 characters for the
1514 val = strtol(folder_name+3, &endptr, 10);
1516 /* If the conversion to long succeeded then the string
1517 is not valid for us */
1518 if (*endptr == '\0')
1524 /* cannot contain a forbidden word */
1526 for (cursor = forbidden_names; cursor && *cursor; ++cursor) {
1527 if (g_ascii_strcasecmp (folder_name, *cursor) == 0)
1532 return TRUE; /* it's valid! */
1538 modest_text_utils_validate_domain_name (const gchar *domain)
1540 gboolean valid = FALSE;
1542 const gchar* domain_regex = "^([a-z0-9-]*[a-z0-9]\\.)+[a-z0-9-]*[a-z0-9]$";
1544 g_return_val_if_fail (domain, FALSE);
1549 memset (&rx, 0, sizeof(regex_t)); /* coverity wants this... */
1551 /* domain name: all alphanum or '-' or '.',
1552 * but beginning/ending in alphanum */
1553 if (regcomp (&rx, domain_regex, REG_ICASE|REG_EXTENDED|REG_NOSUB)) {
1554 g_warning ("BUG: error in regexp");
1558 valid = (regexec (&rx, domain, 1, NULL, 0) == 0);
1567 modest_text_utils_validate_email_address (const gchar *email_address,
1568 const gchar **invalid_char_position)
1571 const gchar *c = NULL, *domain = NULL;
1572 static gchar *rfc822_specials = "()<>@,;:\\\"[]&";
1574 if (invalid_char_position)
1575 *invalid_char_position = NULL;
1577 g_return_val_if_fail (email_address, FALSE);
1579 /* check that the email adress contains exactly one @ */
1580 if (!strstr(email_address, "@") ||
1581 (strstr(email_address, "@") != g_strrstr(email_address, "@")))
1584 /* first we validate the name portion (name@domain) */
1585 for (c = email_address; *c; c++) {
1587 (c == email_address ||
1589 *(c - 1) == '\"')) {
1593 if (*c == '\\' && (*++c == ' '))
1595 if (*c <= ' ' || *c >= 127)
1608 if (*c <= ' ' || *c >= 127)
1610 if (strchr(rfc822_specials, *c)) {
1611 if (invalid_char_position)
1612 *invalid_char_position = c;
1616 if (c == email_address || *(c - 1) == '.')
1619 /* next we validate the domain portion (name@domain) */
1620 if (!*(domain = ++c))
1624 if (c == domain || *(c - 1) == '.' || *(c + 1) == '\0')
1628 if (*c <= ' ' || *c >= 127)
1630 if (strchr(rfc822_specials, *c)) {
1631 if (invalid_char_position)
1632 *invalid_char_position = c;
1637 return (count >= 1) ? TRUE : FALSE;
1641 modest_text_utils_validate_recipient (const gchar *recipient, const gchar **invalid_char_position)
1643 gchar *stripped, *current;
1645 gboolean has_error = FALSE;
1647 if (invalid_char_position)
1648 *invalid_char_position = NULL;
1650 g_return_val_if_fail (recipient, FALSE);
1652 if (modest_text_utils_validate_email_address (recipient, invalid_char_position))
1655 stripped = g_strdup (recipient);
1656 stripped = g_strstrip (stripped);
1659 if (*current == '\0') {
1665 if (*current == '\"') {
1666 current = g_utf8_next_char (current);
1668 for (; *current != '\0'; current = g_utf8_next_char (current)) {
1669 if (*current == '\\') {
1670 /* TODO: This causes a warning, which breaks the build,
1671 * because a gchar cannot be < 0.
1673 if (current[1] <0) {
1678 } else if (*current == '\"') {
1680 current = g_utf8_next_char (current);
1686 for (current = stripped ; *current != '\0'; current = g_utf8_next_char (current)) {
1687 if (*current == '<') {
1699 right_part = g_strdup (current);
1701 right_part = g_strstrip (right_part);
1703 if (g_str_has_prefix (right_part, "<") &&
1704 g_str_has_suffix (right_part, ">")) {
1708 address = g_strndup (right_part+1, strlen (right_part) - 2);
1709 g_free (right_part);
1710 valid = modest_text_utils_validate_email_address (address, invalid_char_position);
1714 g_free (right_part);
1721 modest_text_utils_get_display_size (guint64 size)
1723 const guint KB=1024;
1724 const guint MB=1024 * KB;
1725 const guint GB=1024 * MB;
1728 return g_strdup_printf (_FM("sfil_li_size_kb"), (int) 0);
1729 if (0 <= size && size < KB)
1730 return g_strdup_printf (_FM("sfil_li_size_1kb_99kb"), (int) 1);
1731 else if (KB <= size && size < 100 * KB)
1732 return g_strdup_printf (_FM("sfil_li_size_1kb_99kb"), (int) size / KB);
1733 else if (100*KB <= size && size < MB)
1734 return g_strdup_printf (_FM("sfil_li_size_100kb_1mb"), (int) size / KB);
1735 else if (MB <= size && size < 10*MB)
1736 return g_strdup_printf (_FM("sfil_li_size_1mb_10mb"), (float) size / MB);
1737 else if (10*MB <= size && size < GB)
1738 return g_strdup_printf (_FM("sfil_li_size_10mb_1gb"), (float) size / MB);
1740 return g_strdup_printf (_FM("sfil_li_size_1gb_or_greater"), (float) size / GB);
1744 get_email_from_address (const gchar * address)
1746 gchar *left_limit, *right_limit;
1748 left_limit = strstr (address, "<");
1749 right_limit = g_strrstr (address, ">");
1751 if ((left_limit == NULL)||(right_limit == NULL)|| (left_limit > right_limit))
1752 return g_strdup (address);
1754 return g_strndup (left_limit + 1, (right_limit - left_limit) - 1);
1758 modest_text_utils_get_color_string (GdkColor *color)
1760 g_return_val_if_fail (color, NULL);
1762 return g_strdup_printf ("#%x%x%x%x%x%x%x%x%x%x%x%x",
1763 (color->red >> 12) & 0xf, (color->red >> 8) & 0xf,
1764 (color->red >> 4) & 0xf, (color->red) & 0xf,
1765 (color->green >> 12) & 0xf, (color->green >> 8) & 0xf,
1766 (color->green >> 4) & 0xf, (color->green) & 0xf,
1767 (color->blue >> 12) & 0xf, (color->blue >> 8) & 0xf,
1768 (color->blue >> 4) & 0xf, (color->blue) & 0xf);
1772 modest_text_utils_text_buffer_get_text (GtkTextBuffer *buffer)
1774 GtkTextIter start, end;
1775 gchar *slice, *current;
1776 GString *result = g_string_new ("");
1778 g_return_val_if_fail (buffer && GTK_IS_TEXT_BUFFER (buffer), NULL);
1780 gtk_text_buffer_get_start_iter (buffer, &start);
1781 gtk_text_buffer_get_end_iter (buffer, &end);
1783 slice = gtk_text_buffer_get_slice (buffer, &start, &end, FALSE);
1786 while (current && current != '\0') {
1787 if (g_utf8_get_char (current) == 0xFFFC) {
1788 result = g_string_append_c (result, ' ');
1789 current = g_utf8_next_char (current);
1791 gchar *next = g_utf8_strchr (current, -1, 0xFFFC);
1793 result = g_string_append (result, current);
1795 result = g_string_append_len (result, current, next - current);
1802 return g_string_free (result, FALSE);
1807 modest_text_utils_is_forbidden_char (const gchar character,
1808 ModestTextUtilsForbiddenCharType type)
1811 const gchar *forbidden_chars = NULL;
1813 /* We need to get the length in the switch because the
1814 compiler needs to know the size at compile time */
1816 case ACCOUNT_TITLE_FORBIDDEN_CHARS:
1817 forbidden_chars = account_title_forbidden_chars;
1818 len = G_N_ELEMENTS (account_title_forbidden_chars);
1820 case FOLDER_NAME_FORBIDDEN_CHARS:
1821 forbidden_chars = folder_name_forbidden_chars;
1822 len = G_N_ELEMENTS (folder_name_forbidden_chars);
1824 case USER_NAME_FORBIDDEN_NAMES:
1825 forbidden_chars = user_name_forbidden_chars;
1826 len = G_N_ELEMENTS (user_name_forbidden_chars);
1829 g_return_val_if_reached (TRUE);
1832 for (i = 0; i < len ; i++)
1833 if (forbidden_chars[i] == character)
1836 return FALSE; /* it's valid! */
1840 modest_text_utils_label_get_selection (GtkLabel *label)
1845 if (gtk_label_get_selection_bounds (GTK_LABEL (label), &start, &end)) {
1846 const gchar *start_offset;
1847 const gchar *end_offset;
1848 start_offset = gtk_label_get_text (GTK_LABEL (label));
1849 start_offset = g_utf8_offset_to_pointer (start_offset, start);
1850 end_offset = gtk_label_get_text (GTK_LABEL (label));
1851 end_offset = g_utf8_offset_to_pointer (end_offset, end);
1852 selection = g_strndup (start_offset, end_offset - start_offset);
1855 return g_strdup ("");
1860 _forward_search_image_char (gunichar ch,
1863 return (ch == 0xFFFC);
1867 modest_text_utils_buffer_selection_is_valid (GtkTextBuffer *buffer)
1870 GtkTextIter start, end;
1872 g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), FALSE);
1874 result = gtk_text_buffer_get_has_selection (GTK_TEXT_BUFFER (buffer));
1876 /* check there are no images in selection */
1878 gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
1879 if (gtk_text_iter_get_char (&start)== 0xFFFC)
1882 gtk_text_iter_backward_char (&end);
1883 if (gtk_text_iter_forward_find_char (&start, _forward_search_image_char,
1894 remove_quotes (gchar **quotes)
1896 if (g_str_has_prefix (*quotes, "\"") && g_str_has_suffix (*quotes, "\"")) {
1898 result = g_strndup ((*quotes)+1, strlen (*quotes) - 2);
1905 modest_text_utils_escape_mnemonics (const gchar *text)
1908 GString *result = NULL;
1913 result = g_string_new ("");
1914 for (p = text; *p != '\0'; p++) {
1916 result = g_string_append (result, "__");
1918 result = g_string_append_c (result, *p);
1921 return g_string_free (result, FALSE);
1925 modest_text_utils_simplify_recipients (const gchar *recipients)
1927 GSList *addresses, *node;
1929 gboolean is_first = TRUE;
1931 if (recipients == NULL)
1932 return g_strdup ("");
1934 addresses = modest_text_utils_split_addresses_list (recipients);
1935 result = g_string_new ("");
1937 for (node = addresses; node != NULL; node = g_slist_next (node)) {
1938 const gchar *address = (const gchar *) node->data;
1939 gchar *left_limit, *right_limit;
1941 left_limit = strstr (address, "<");
1942 right_limit = g_strrstr (address, ">");
1947 result = g_string_append (result, ", ");
1949 if ((left_limit == NULL)||(right_limit == NULL)|| (left_limit > right_limit)) {
1950 result = g_string_append (result, address);
1954 name_side = g_strndup (address, left_limit - address);
1955 name_side = g_strstrip (name_side);
1956 remove_quotes (&name_side);
1957 email_side = get_email_from_address (address);
1958 if (name_side && email_side && !strcmp (name_side, email_side)) {
1959 result = g_string_append (result, email_side);
1961 result = g_string_append (result, address);
1964 g_free (email_side);
1968 g_slist_foreach (addresses, (GFunc)g_free, NULL);
1969 g_slist_free (addresses);
1971 return g_string_free (result, FALSE);
1976 modest_text_utils_remove_duplicate_addresses_list (GSList *address_list)
1978 GSList *new_list, *iter;
1981 g_return_val_if_fail (address_list, NULL);
1983 table = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
1985 new_list = address_list;
1986 iter = address_list;
1988 const gchar* address = (const gchar*)iter->data;
1990 /* We need only the email to just compare it and not
1991 the full address which would make "a <a@a.com>"
1992 different from "a@a.com" */
1993 const gchar *email = get_email_from_address (address);
1995 /* ignore the address if already seen */
1996 if (g_hash_table_lookup (table, email) == 0) {
1997 g_hash_table_insert (table, (gchar*)email, GINT_TO_POINTER(1));
1998 iter = g_slist_next (iter);
2000 GSList *tmp = g_slist_next (iter);
2001 new_list = g_slist_delete_link (new_list, iter);
2006 g_hash_table_unref (table);
2012 modest_text_utils_get_secure_header (const gchar *value,
2013 const gchar *header)
2015 const gint max_len = 128;
2016 gchar *new_value = NULL;
2017 gchar *needle = g_strrstr (value, header);
2019 if (needle && value != needle)
2020 new_value = g_strdup (needle + strlen (header));
2023 new_value = g_strdup (value);
2025 /* Do a max length check to prevent DoS attacks caused by huge
2026 malformed headers */
2027 if (g_utf8_validate (new_value, -1, NULL)) {
2028 if (g_utf8_strlen (new_value, -1) > max_len) {
2029 gchar *tmp = g_malloc0 (max_len * 4);
2030 g_utf8_strncpy (tmp, (const gchar *) new_value, max_len);
2035 if (strlen (new_value) > max_len) {
2036 gchar *tmp = g_malloc0 (max_len);
2037 strncpy (new_value, tmp, max_len);