-/* modest-ui.c */
+/* Copyright (c) 2006, Nokia Corporation
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the Nokia Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+ * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
-/* insert (c)/licensing information) */
-#include <gtk/gtk.h>
-#include <string.h>
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif /*_GNU_SOURCE*/
+#include <string.h> /* for strcasestr */
+
+
+#include <glib.h>
+#include <stdlib.h>
+#include <glib/gi18n.h>
+#include <regex.h>
+#include <modest-tny-platform-factory.h>
+#include <modest-text-utils.h>
+#include <modest-runtime.h>
+#include <ctype.h>
#ifdef HAVE_CONFIG_H
#include <config.h>
-#endif /*HAVE_CONFIG_H*/
+#endif /*HAVE_CONFIG_H */
+
+/* defines */
+#define FORWARD_STRING _("mcen_ia_editor_original_message")
+#define FROM_STRING _("mail_va_from")
+#define SENT_STRING _("mcen_fi_message_properties_sent")
+#define TO_STRING _("mail_va_to")
+#define SUBJECT_STRING _("mail_va_subject")
+#define EMPTY_STRING ""
+
+/*
+ * do the hyperlinkification only for texts < 50 Kb,
+ * as it's quite slow. Without this, e.g. mail with
+ * an uuencoded part (which is not recognized as attachment,
+ * will hang modest
+ */
+#define HYPERLINKIFY_MAX_LENGTH (1024*50)
+#define SIGNATURE_MARKER "--"
+
+
+/*
+ * we need these regexps to find URLs in plain text e-mails
+ */
+typedef struct _url_match_pattern_t url_match_pattern_t;
+struct _url_match_pattern_t {
+ gchar *regex;
+ regex_t *preg;
+ gchar *prefix;
+};
+
+typedef struct _url_match_t url_match_t;
+struct _url_match_t {
+ guint offset;
+ guint len;
+ const gchar* prefix;
+};
+
+/*
+ * we mark the ampersand with \007 when converting text->html
+ * because after text->html we do hyperlink detecting, which
+ * could be screwed up by the ampersand.
+ * ie. 1<3 ==> 1\007lt;3
+ */
+#define MARK_AMP '\007'
+#define MARK_AMP_STR "\007"
+
+/* mark & separately, because they are parts of urls.
+ * ie. a&b => a\006amp;b, but a>b => a\007gt;b
+ *
+ * we need to handle '&' separately, because it can be part of URIs
+ * (as in href="http://foo.bar?a=1&b=1"), so inside those URIs
+ * we need to re-replace \006amp; with '&' again, while outside uri's
+ * it will be '&'
+ *
+ * yes, it's messy, but a consequence of doing text->html first, then hyperlinkify
+ */
+#define MARK_AMP_URI '\006'
+#define MARK_AMP_URI_STR "\006"
+
+
+/* note: match MARK_AMP_URI_STR as well, because after txt->html, a '&' will look like $(MARK_AMP_URI_STR)"amp;" */
+#define MAIL_VIEWER_URL_MATCH_PATTERNS { \
+ { "(file|rtsp|http|ftp|https|mms|mmsh|rtsp|rdp|lastfm)://[-a-z0-9_$.+!*(),;:@%=?/~#" MARK_AMP_URI_STR \
+ "]+[-a-z0-9_$%" MARK_AMP_URI_STR "=?/~#]", \
+ NULL, NULL },\
+ { "www\\.[-a-z0-9_$.+!*(),;:@%=?/~#" MARK_AMP_URI_STR "]+[-a-z0-9_$%" MARK_AMP_URI_STR "=?/~#]",\
+ NULL, "http://" }, \
+ { "ftp\\.[-a-z0-9_$.+!*(),;:@%=?/~#" MARK_AMP_URI_STR "]+[-a-z0-9_$%" MARK_AMP_URI_STR "=?/~#]",\
+ NULL, "ftp://" },\
+ { "(jabberto|voipto|sipto|sip|chatto|xmpp):[-_a-z@0-9.+]+", \
+ NULL, NULL}, \
+ { "mailto:[-_a-z0-9.\\+]+@[-_a-z0-9.]+", \
+ NULL, NULL},\
+ { "[-_a-z0-9.\\+]+@[-_a-z0-9.]+",\
+ NULL, "mailto:"}\
+ }
+
+const gchar account_title_forbidden_chars[] = {
+ '\\', '/', ':', '*', '?', '\'', '<', '>', '|', '^'
+};
+const gchar folder_name_forbidden_chars[] = {
+ '<', '>', ':', '\'', '/', '\\', '|', '?', '*', '^', '%', '$', '#', '&'
+};
+const gchar user_name_forbidden_chars[] = {
+ '<', '>'
+};
+const guint ACCOUNT_TITLE_FORBIDDEN_CHARS_LENGTH = G_N_ELEMENTS (account_title_forbidden_chars);
+const guint FOLDER_NAME_FORBIDDEN_CHARS_LENGTH = G_N_ELEMENTS (folder_name_forbidden_chars);
+const guint USER_NAME_FORBIDDEN_CHARS_LENGTH = G_N_ELEMENTS (user_name_forbidden_chars);
/* private */
-static GString *
-get_next_line(GtkTextBuffer *b, GtkTextIter *iter);
+static gchar* cite (const time_t sent_date, const gchar *from);
+static void hyperlinkify_plain_text (GString *txt, gint offset);
+static gint cmp_offsets_reverse (const url_match_t *match1, const url_match_t *match2);
+static GSList* get_url_matches (GString *txt, gint offset);
-static int
-get_indent_level(const char *l);
+static GString* get_next_line (const char *b, const gsize blen, const gchar * iter);
+static int get_indent_level (const char *l);
+static void unquote_line (GString * l);
+static void append_quoted (GString * buf, const int indent, const GString * str,
+ const int cutpoint);
+static int get_breakpoint_utf8 (const gchar * s, const gint indent, const gint limit);
+static int get_breakpoint_ascii (const gchar * s, const gint indent, const gint limit);
+static int get_breakpoint (const gchar * s, const gint indent, const gint limit);
-static void
-unquote_line(GString *l);
+static gchar* modest_text_utils_quote_plain_text (const gchar *text,
+ const gchar *cite,
+ const gchar *signature,
+ GList *attachments,
+ int limit);
-static void
-append_quoted(GString *buf, const int indent, const GString *str, const int cutpoint);
+static gchar* modest_text_utils_quote_html (const gchar *text,
+ const gchar *cite,
+ const gchar *signature,
+ GList *attachments,
+ int limit);
+static gchar* get_email_from_address (const gchar *address);
-static int
-get_breakpoint_utf8(const gchar *s, const gint indent, const gint limit);
-static int
-get_breakpoint_ascii(const gchar *s, const gint indent, const gint limit);
+/* ******************************************************************* */
+/* ************************* PUBLIC FUNCTIONS ************************ */
+/* ******************************************************************* */
-static int
-get_breakpoint(const gchar *s, const gint indent, const gint limit);
+gchar *
+modest_text_utils_quote (const gchar *text,
+ const gchar *content_type,
+ const gchar *signature,
+ const gchar *from,
+ const time_t sent_date,
+ GList *attachments,
+ int limit)
+{
+ gchar *retval, *cited;
-static GString *
-get_next_line(GtkTextBuffer *b, GtkTextIter *iter)
+ g_return_val_if_fail (text, NULL);
+ g_return_val_if_fail (content_type, NULL);
+
+ cited = cite (sent_date, from);
+
+ if (content_type && strcmp (content_type, "text/html") == 0)
+ /* TODO: extract the <body> of the HTML and pass it to
+ the function */
+ retval = modest_text_utils_quote_html (text, cited, signature, attachments, limit);
+ else
+ retval = modest_text_utils_quote_plain_text (text, cited, signature, attachments, limit);
+
+ g_free (cited);
+
+ return retval;
+}
+
+
+gchar *
+modest_text_utils_cite (const gchar *text,
+ const gchar *content_type,
+ const gchar *signature,
+ const gchar *from,
+ time_t sent_date)
{
- GtkTextIter iter2, iter3;
- gchar *tmp;
- GString *line;
+ gchar *retval;
+ gchar *tmp_sig;
- if (gtk_text_iter_is_end(iter))
- return g_string_new("");
+ g_return_val_if_fail (text, NULL);
+ g_return_val_if_fail (content_type, NULL);
- gtk_text_buffer_get_iter_at_line_offset(b,
- &iter2,
- gtk_text_iter_get_line(iter),
- gtk_text_iter_get_chars_in_line(iter) - 1
- );
- iter3 = iter2;
- gtk_text_iter_forward_char(&iter2);
- if (gtk_text_iter_is_end(&iter2)) {
- tmp = gtk_text_buffer_get_text(b, &iter2, iter, FALSE);
+ if (!signature)
+ retval = g_strdup ("");
+ else if (strcmp(content_type, "text/html") == 0) {
+ tmp_sig = g_strconcat ("\n", SIGNATURE_MARKER,"\n", signature, NULL);
+ retval = modest_text_utils_convert_to_html_body(tmp_sig, -1, TRUE);
+ g_free (tmp_sig);
} else {
- tmp = gtk_text_buffer_get_text(b, &iter3, iter, FALSE);
+ retval = g_strconcat (text, "\n", SIGNATURE_MARKER, "\n", signature, NULL);
+ }
+
+ return retval;
+}
+
+static gchar *
+forward_cite (const gchar *from,
+ const gchar *sent,
+ const gchar *to,
+ const gchar *subject)
+{
+ g_return_val_if_fail (sent, NULL);
+
+ return g_strdup_printf ("%s\n%s %s\n%s %s\n%s %s\n%s %s\n",
+ FORWARD_STRING,
+ FROM_STRING, (from)?from:"",
+ SENT_STRING, sent,
+ TO_STRING, (to)?to:"",
+ SUBJECT_STRING, (subject)?subject:"");
+}
+
+gchar *
+modest_text_utils_inline (const gchar *text,
+ const gchar *content_type,
+ const gchar *signature,
+ const gchar *from,
+ time_t sent_date,
+ const gchar *to,
+ const gchar *subject)
+{
+ gchar sent_str[101];
+ gchar *cited;
+ gchar *retval;
+
+ g_return_val_if_fail (text, NULL);
+ g_return_val_if_fail (content_type, NULL);
+
+ modest_text_utils_strftime (sent_str, 100, "%c", sent_date);
+
+ cited = forward_cite (from, sent_str, to, subject);
+
+ if (content_type && strcmp (content_type, "text/html") == 0)
+ retval = modest_text_utils_quote_html (text, cited, signature, NULL, 80);
+ else
+ retval = modest_text_utils_quote_plain_text (text, cited, signature, NULL, 80);
+
+ g_free (cited);
+ return retval;
+}
+
+/* just to prevent warnings:
+ * warning: `%x' yields only last 2 digits of year in some locales
+ */
+gsize
+modest_text_utils_strftime(char *s, gsize max, const char *fmt, time_t timet)
+{
+ struct tm tm;
+
+ /* To prevent possible problems in strftime that could leave
+ garbage in the s variable */
+ if (s)
+ s[0] = '\0';
+
+ /* does not work on old maemo glib:
+ * g_date_set_time_t (&date, timet);
+ */
+ localtime_r (&timet, &tm);
+ return strftime(s, max, fmt, &tm);
+}
+
+gchar *
+modest_text_utils_derived_subject (const gchar *subject, const gchar *prefix)
+{
+ gchar *tmp, *subject_dup, *retval;
+ gint prefix_len;
+
+ g_return_val_if_fail (prefix, NULL);
+
+ if (!subject || subject[0] == '\0')
+ subject = _("mail_va_no_subject");
+
+ subject_dup = g_strdup (subject);
+ tmp = g_strchug (subject_dup);
+
+ /* We do not want things like "Re: Re: Re:" or "Fw: Fw:" so
+ delete the previous ones */
+ prefix_len = strlen (prefix);
+ do {
+ if (g_str_has_prefix (tmp, prefix)) {
+ tmp += prefix_len;
+ tmp = g_strchug (tmp);
+ } else {
+ break;
+ }
+ } while (tmp);
+
+ retval = g_strdup_printf ("%s %s", prefix, tmp);
+ g_free (subject_dup);
+
+ return retval;
+}
+
+gchar*
+modest_text_utils_remove_address (const gchar *address_list, const gchar *address)
+{
+ gchar *dup, *token, *ptr = NULL, *result;
+ GString *filtered_emails;
+ gchar *email_address;
+
+ g_return_val_if_fail (address_list, NULL);
+
+ if (!address)
+ return g_strdup (address_list);
+
+ email_address = get_email_from_address (address);
+
+ /* search for substring */
+ if (!strstr ((const char *) address_list, (const char *) email_address)) {
+ g_free (email_address);
+ return g_strdup (address_list);
+ }
+
+ dup = g_strdup (address_list);
+ filtered_emails = g_string_new (NULL);
+
+ token = strtok_r (dup, ",", &ptr);
+
+ while (token != NULL) {
+ /* Add to list if not found */
+ if (!strstr ((const char *) token, (const char *) email_address)) {
+ if (filtered_emails->len == 0)
+ g_string_append_printf (filtered_emails, "%s", g_strstrip (token));
+ else
+ g_string_append_printf (filtered_emails, ",%s", g_strstrip (token));
+ }
+ token = strtok_r (NULL, ",", &ptr);
+ }
+ result = filtered_emails->str;
+
+ /* Clean */
+ g_free (email_address);
+ g_free (dup);
+ g_string_free (filtered_emails, FALSE);
+
+ return result;
+}
+
+
+gchar*
+modest_text_utils_remove_duplicate_addresses (const gchar *address_list)
+{
+ GSList *addresses, *cursor;
+ GHashTable *table;
+ gchar *new_list = NULL;
+
+ g_return_val_if_fail (address_list, NULL);
+
+ table = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
+ addresses = modest_text_utils_split_addresses_list (address_list);
+
+ cursor = addresses;
+ while (cursor) {
+ const gchar* address = (const gchar*)cursor->data;
+
+ /* We need only the email to just compare it and not
+ the full address which would make "a <a@a.com>"
+ different from "a@a.com" */
+ const gchar *email = get_email_from_address (address);
+
+ /* ignore the address if already seen */
+ if (g_hash_table_lookup (table, email) == 0) {
+ gchar *tmp;
+
+ /* Include the full address and not only the
+ email in the returned list */
+ if (!new_list) {
+ tmp = g_strdup (address);
+ } else {
+ tmp = g_strjoin (",", new_list, address, NULL);
+ g_free (new_list);
+ }
+ new_list = tmp;
+
+ g_hash_table_insert (table, (gchar*)email, GINT_TO_POINTER(1));
+ }
+ cursor = g_slist_next (cursor);
}
- line = g_string_new(tmp);
+
+ g_hash_table_unref (table);
+ g_slist_foreach (addresses, (GFunc)g_free, NULL);
+ g_slist_free (addresses);
+
+ return new_list;
+}
+
+
+static void
+modest_text_utils_convert_buffer_to_html_start (GString *html, const gchar *data, gssize n)
+{
+ guint i;
+ gboolean space_seen = FALSE;
+ guint break_dist = 0; /* distance since last break point */
+
+ if (n == -1)
+ n = strlen (data);
+
+ /* replace with special html chars where needed*/
+ for (i = 0; i != n; ++i) {
+ guchar kar = data[i];
+
+ if (space_seen && kar != ' ') {
+ g_string_append_c (html, ' ');
+ space_seen = FALSE;
+ }
+
+ /* we artificially insert a breakpoint (newline)
+ * after 256, to make sure our lines are not so long
+ * they will DOS the regexping later
+ * Also, check that kar is ASCII to make sure that we
+ * don't break a UTF8 char in two
+ */
+ if (++break_dist >= 256 && kar < 127) {
+ g_string_append_c (html, '\n');
+ break_dist = 0;
+ }
- gtk_text_iter_forward_line(iter);
+ switch (kar) {
+ case 0:
+ case MARK_AMP:
+ case MARK_AMP_URI:
+ /* this is a temp place holder for '&'; we can only
+ * set the real '&' after hyperlink translation, otherwise
+ * we might screw that up */
+ break; /* ignore embedded \0s and MARK_AMP */
+ case '<' : g_string_append (html, MARK_AMP_STR "lt;"); break;
+ case '>' : g_string_append (html, MARK_AMP_STR "gt;"); break;
+ case '&' : g_string_append (html, MARK_AMP_URI_STR "amp;"); break; /* special case */
+ case '"' : g_string_append (html, MARK_AMP_STR "quot;"); break;
+
+ /* don't convert ' --> wpeditor will try to re-convert it... */
+ //case '\'' : g_string_append (html, "'"); break;
+ case '\n' : g_string_append (html, "<br>\n");break_dist= 0; break;
+ case '\t' : g_string_append (html, MARK_AMP_STR "nbsp;" MARK_AMP_STR "nbsp;" MARK_AMP_STR "nbsp; ");
+ break_dist=0; break; /* note the space at the end*/
+ case ' ':
+ break_dist = 0;
+ if (space_seen) { /* second space in a row */
+ g_string_append (html, " ");
+ space_seen = FALSE;
+ } else
+ space_seen = TRUE;
+ break;
+ default:
+ g_string_append_c (html, kar);
+ }
+ }
+}
+
+
+static void
+modest_text_utils_convert_buffer_to_html_finish (GString *html)
+{
+ int i;
+ /* replace all our MARK_AMPs with real ones */
+ for (i = 0; i != html->len; ++i)
+ if ((html->str)[i] == MARK_AMP || (html->str)[i] == MARK_AMP_URI)
+ (html->str)[i] = '&';
+}
+
+
+gchar*
+modest_text_utils_convert_to_html (const gchar *data)
+{
+ GString *html;
+ gsize len;
+
+ g_return_val_if_fail (data, NULL);
+
+ if (!data)
+ return NULL;
+
+ len = strlen (data);
+ html = g_string_sized_new (1.5 * len); /* just a guess... */
+
+ g_string_append_printf (html,
+ "<html><head>"
+ "<meta http-equiv=\"content-type\" content=\"text/html; charset=utf8\">"
+ "</head>"
+ "<body>");
+
+ modest_text_utils_convert_buffer_to_html_start (html, data, -1);
+
+ g_string_append (html, "</body></html>");
+
+ if (len <= HYPERLINKIFY_MAX_LENGTH)
+ hyperlinkify_plain_text (html, 0);
+
+ modest_text_utils_convert_buffer_to_html_finish (html);
+
+ return g_string_free (html, FALSE);
+}
+
+gchar *
+modest_text_utils_convert_to_html_body (const gchar *data, gssize n, gboolean hyperlinkify)
+{
+ GString *html;
+
+ g_return_val_if_fail (data, NULL);
+
+ if (!data)
+ return NULL;
+
+ if (n == -1)
+ n = strlen (data);
+ html = g_string_sized_new (1.5 * n); /* just a guess... */
+
+ modest_text_utils_convert_buffer_to_html_start (html, data, n);
+
+ if (hyperlinkify && (n < HYPERLINKIFY_MAX_LENGTH))
+ hyperlinkify_plain_text (html, 0);
+
+ modest_text_utils_convert_buffer_to_html_finish (html);
+
+ return g_string_free (html, FALSE);
+}
+
+void
+modest_text_utils_get_addresses_indexes (const gchar *addresses, GSList **start_indexes, GSList **end_indexes)
+{
+ gchar *current, *start, *last_blank;
+ gint start_offset = 0, current_offset = 0;
+
+ g_return_if_fail (start_indexes != NULL);
+ g_return_if_fail (end_indexes != NULL);
+
+ start = (gchar *) addresses;
+ current = start;
+ last_blank = start;
+
+ while (*current != '\0') {
+ if ((start == current)&&((*current == ' ')||(*current == ',')||(*current == ';'))) {
+ start = g_utf8_next_char (start);
+ start_offset++;
+ last_blank = current;
+ } else if ((*current == ',')||(*current == ';')) {
+ gint *start_index, *end_index;
+ start_index = g_new0(gint, 1);
+ end_index = g_new0(gint, 1);
+ *start_index = start_offset;
+ *end_index = current_offset;
+ *start_indexes = g_slist_prepend (*start_indexes, start_index);
+ *end_indexes = g_slist_prepend (*end_indexes, end_index);
+ start = g_utf8_next_char (current);
+ start_offset = current_offset + 1;
+ last_blank = start;
+ } else if (*current == '"') {
+ current = g_utf8_next_char (current);
+ current_offset ++;
+ while ((*current != '"')&&(*current != '\0')) {
+ current = g_utf8_next_char (current);
+ current_offset ++;
+ }
+ }
+
+ current = g_utf8_next_char (current);
+ current_offset ++;
+ }
+
+ if (start != current) {
+ gint *start_index, *end_index;
+ start_index = g_new0(gint, 1);
+ end_index = g_new0(gint, 1);
+ *start_index = start_offset;
+ *end_index = current_offset;
+ *start_indexes = g_slist_prepend (*start_indexes, start_index);
+ *end_indexes = g_slist_prepend (*end_indexes, end_index);
+ }
+
+ *start_indexes = g_slist_reverse (*start_indexes);
+ *end_indexes = g_slist_reverse (*end_indexes);
+
+ return;
+}
+
+
+GSList *
+modest_text_utils_split_addresses_list (const gchar *addresses)
+{
+ GSList *head;
+ const gchar *my_addrs = addresses;
+ const gchar *end;
+ gchar *addr;
+
+ g_return_val_if_fail (addresses, NULL);
+
+ /* skip any space, ',', ';' at the start */
+ while (my_addrs && (my_addrs[0] == ' ' || my_addrs[0] == ',' || my_addrs[0] == ';'))
+ ++my_addrs;
+
+ /* are we at the end of addresses list? */
+ if (!my_addrs[0])
+ return NULL;
- return line;
+ /* nope, we are at the start of some address
+ * now, let's find the end of the address */
+ end = my_addrs + 1;
+ while (end[0] && end[0] != ';') {
+ if (end[0] == '\"') {
+ while (end[0] && end[0] != '\"')
+ ++end;
+ }
+ if ((end[0] && end[0] == '>')&&(end[1] && end[1] == ',')) {
+ ++end;
+ break;
+ }
+ ++end;
+ }
+
+ /* we got the address; copy it and remove trailing whitespace */
+ addr = g_strndup (my_addrs, end - my_addrs);
+ g_strchomp (addr);
+
+ head = g_slist_append (NULL, addr);
+ head->next = modest_text_utils_split_addresses_list (end); /* recurse */
+
+ return head;
+}
+
+
+void
+modest_text_utils_address_range_at_position (const gchar *recipients_list,
+ guint position,
+ guint *start,
+ guint *end)
+{
+ gchar *current = NULL;
+ gint range_start = 0;
+ gint range_end = 0;
+ gint index;
+ gboolean is_quoted = FALSE;
+
+ g_return_if_fail (recipients_list);
+ g_return_if_fail (position < g_utf8_strlen(recipients_list, -1));
+
+ index = 0;
+ for (current = (gchar *) recipients_list; *current != '\0';
+ current = g_utf8_find_next_char (current, NULL)) {
+ gunichar c = g_utf8_get_char (current);
+
+ if ((c == ',') && (!is_quoted)) {
+ if (index < position) {
+ range_start = index + 1;
+ } else {
+ break;
+ }
+ } else if (c == '\"') {
+ is_quoted = !is_quoted;
+ } else if ((c == ' ') &&(range_start == index)) {
+ range_start ++;
+ }
+ index ++;
+ range_end = index;
+ }
+
+ if (start)
+ *start = range_start;
+ if (end)
+ *end = range_end;
+}
+
+gchar *
+modest_text_utils_address_with_standard_length (const gchar *recipients_list)
+{
+ gchar ** splitted;
+ gchar ** current;
+ GString *buffer = g_string_new ("");
+
+ splitted = g_strsplit (recipients_list, "\n", 0);
+ current = splitted;
+ while (*current) {
+ gchar *line;
+ if (current != splitted)
+ buffer = g_string_append_c (buffer, '\n');
+ line = g_strndup (*splitted, 1000);
+ buffer = g_string_append (buffer, line);
+ g_free (line);
+ current++;
+ }
+
+ g_strfreev (splitted);
+
+ return g_string_free (buffer, FALSE);
}
+
+/* ******************************************************************* */
+/* ************************* UTILIY FUNCTIONS ************************ */
+/* ******************************************************************* */
+
+static GString *
+get_next_line (const gchar * b, const gsize blen, const gchar * iter)
+{
+ GString *gs;
+ const gchar *i0;
+
+ if (iter > b + blen)
+ return g_string_new("");
+
+ i0 = iter;
+ while (iter[0]) {
+ if (iter[0] == '\n')
+ break;
+ iter++;
+ }
+ gs = g_string_new_len (i0, iter - i0);
+ return gs;
+}
static int
-get_indent_level(const char *l)
+get_indent_level (const char *l)
{
int indent = 0;
-
+
while (l[0]) {
if (l[0] == '>') {
indent++;
break;
}
l++;
-
+
}
- /* if we hit the signature marker "-- ", we return -(indent + 1). This
- * stops reformatting.
- */
- if (strcmp(l, "-- ") == 0) {
- return -1-indent;
+ /* if we hit the signature marker "-- ", we return -(indent + 1). This
+ * stops reformatting.
+ */
+ if (strcmp (l, "-- ") == 0) {
+ return -1 - indent;
} else {
return indent;
}
}
static void
-unquote_line(GString *l) {
- GString *r;
+unquote_line (GString * l)
+{
gchar *p;
-
+
p = l->str;
while (p[0]) {
if (p[0] == '>') {
}
static void
-append_quoted(GString *buf, int indent, const GString *str, const int cutpoint) {
+append_quoted (GString * buf, int indent, const GString * str,
+ const int cutpoint)
+{
int i;
-
- indent = indent < 0? abs(indent) -1 : indent;
- for (i=0; i<=indent; i++) {
- g_string_append(buf, "> ");
+
+ indent = indent < 0 ? abs (indent) - 1 : indent;
+ for (i = 0; i <= indent; i++) {
+ g_string_append (buf, "> ");
}
if (cutpoint > 0) {
- g_string_append_len(buf, str->str, cutpoint);
+ g_string_append_len (buf, str->str, cutpoint);
} else {
- g_string_append(buf, str->str);
+ g_string_append (buf, str->str);
}
- g_string_append(buf, "\n");
+ g_string_append (buf, "\n");
}
static int
-get_breakpoint_utf8(const gchar *s, gint indent, const gint limit) {
+get_breakpoint_utf8 (const gchar * s, gint indent, const gint limit)
+{
gint index = 0;
const gchar *pos, *last;
gunichar *uni;
-
- indent = indent < 0? abs(indent) -1 : indent;
-
+
+ indent = indent < 0 ? abs (indent) - 1 : indent;
+
last = NULL;
pos = s;
- uni = g_utf8_to_ucs4_fast(s, -1, NULL);
+ uni = g_utf8_to_ucs4_fast (s, -1, NULL);
while (pos[0]) {
if ((index + 2 * indent > limit) && last) {
- g_free(uni);
+ g_free (uni);
return last - s;
}
- if (g_unichar_isspace(uni[index])) {
+ if (g_unichar_isspace (uni[index])) {
last = pos;
}
- pos = g_utf8_next_char(pos);
+ pos = g_utf8_next_char (pos);
index++;
}
- g_free(uni);
- return strlen(s);
+ g_free (uni);
+ return strlen (s);
}
static int
-get_breakpoint_ascii(const gchar *s, const gint indent, const gint limit) {
+get_breakpoint_ascii (const gchar * s, const gint indent, const gint limit)
+{
gint i, last;
-
- last = strlen(s);
+
+ last = strlen (s);
if (last + 2 * indent < limit)
return last;
-
- for ( i=strlen(s) ; i>0; i-- ) {
+
+ for (i = strlen (s); i > 0; i--) {
if (s[i] == ' ') {
if (i + 2 * indent <= limit) {
return i;
}
static int
-get_breakpoint(const gchar *s, const gint indent, const gint limit) {
-
- if (g_utf8_validate(s, -1, NULL)) {
- return get_breakpoint_utf8(s, indent, limit);
- } else { /* assume ASCII */
- g_warning("invalid UTF-8 in msg");
- return get_breakpoint_ascii(s, indent, limit);
+get_breakpoint (const gchar * s, const gint indent, const gint limit)
+{
+
+ if (g_utf8_validate (s, -1, NULL)) {
+ return get_breakpoint_utf8 (s, indent, limit);
+ } else { /* assume ASCII */
+ //g_warning("invalid UTF-8 in msg");
+ return get_breakpoint_ascii (s, indent, limit);
}
-}
+}
-gchar *
-modest_text_utils_quote(GtkTextBuffer *buf, const gchar *from, const time_t sent_date, const int limit)
+static gchar *
+cite (const time_t sent_date, const gchar *from)
{
- GtkTextIter iter;
- gint indent, breakpoint, rem_indent;
- gchar sent_str[101];
- GString *q, *l, *remaining; /* quoted msg, line */
-
+ return g_strdup (_("mcen_ia_editor_original_message"));
+}
+
+static gchar *
+quoted_attachments (GList *attachments)
+{
+ GList *node = NULL;
+ GString *result = g_string_new ("");
+ for (node = attachments; node != NULL; node = g_list_next (node)) {
+ gchar *filename = (gchar *) node->data;
+ g_string_append_printf ( result, "%s %s\n", _("mcen_ia_editor_attach_filename"), filename);
+ }
+
+ return g_string_free (result, FALSE);
+
+}
+
+static gchar *
+modest_text_utils_quote_plain_text (const gchar *text,
+ const gchar *cite,
+ const gchar *signature,
+ GList *attachments,
+ int limit)
+{
+ const gchar *iter;
+ gint indent, breakpoint, rem_indent = 0;
+ GString *q, *l, *remaining;
+ gsize len;
+ gchar *attachments_string = NULL;
+
+ q = g_string_new ("");
+
+ if (signature != NULL) {
+ q = g_string_append (q, "\n--\n");
+ q = g_string_append (q, signature);
+ }
+
+ q = g_string_append (q, "\n");
+ q = g_string_append (q, cite);
+ q = g_string_append_c (q, '\n');
- /* format sent_date */
- strftime(sent_str, 100, "%c", localtime(&sent_date));
- q = g_string_new("");
- g_string_printf(q, "On %s, %s wrote:\n", sent_str, from);
-
/* remaining will store the rest of the line if we have to break it */
- remaining = g_string_new("");
- gtk_text_buffer_get_iter_at_line(buf, &iter, 0);
+ remaining = g_string_new ("");
+
+ iter = text;
+ len = strlen(text);
do {
- l = get_next_line(buf, &iter);
- indent = get_indent_level(l->str);
- unquote_line(l);
-
+ l = get_next_line (text, len, iter);
+ iter = iter + l->len + 1;
+ indent = get_indent_level (l->str);
+ unquote_line (l);
+
if (remaining->len) {
if (l->len && indent == rem_indent) {
- g_string_prepend(l, " ");
- g_string_prepend(l, remaining->str);
+ g_string_prepend (l, " ");
+ g_string_prepend (l, remaining->str);
} else {
do {
- breakpoint = get_breakpoint(remaining->str, rem_indent, limit);
- append_quoted(q, rem_indent, remaining, breakpoint);
- g_string_erase(remaining, 0, breakpoint);
+ breakpoint =
+ get_breakpoint (remaining->str,
+ rem_indent,
+ limit);
+ append_quoted (q, rem_indent,
+ remaining, breakpoint);
+ g_string_erase (remaining, 0,
+ breakpoint);
if (remaining->str[0] == ' ') {
- g_string_erase(remaining, 0, 1);
- }
+ g_string_erase (remaining, 0,
+ 1);
+ }
} while (remaining->len);
}
}
- g_string_free(remaining, TRUE);
- breakpoint = get_breakpoint(l->str, indent, limit);
- remaining = g_string_new(l->str + breakpoint);
+ g_string_free (remaining, TRUE);
+ breakpoint = get_breakpoint (l->str, indent, limit);
+ remaining = g_string_new (l->str + breakpoint);
if (remaining->str[0] == ' ') {
- g_string_erase(remaining, 0, 1);
+ g_string_erase (remaining, 0, 1);
}
rem_indent = indent;
- append_quoted(q, indent, l, breakpoint);
- g_string_free(l, TRUE);
- } while (remaining->str[0] || !gtk_text_iter_is_end(&iter));
+ append_quoted (q, indent, l, breakpoint);
+ g_string_free (l, TRUE);
+ } while ((iter < text + len) || (remaining->str[0]));
+
+ attachments_string = quoted_attachments (attachments);
+ q = g_string_append (q, attachments_string);
+ g_free (attachments_string);
+
+ return g_string_free (q, FALSE);
+}
+
+static void
+quote_html_add_to_gstring (GString *string,
+ const gchar *text)
+{
+ if (text && strcmp (text, "")) {
+ gchar *html_text = modest_text_utils_convert_to_html_body (text, -1, TRUE);
+ g_string_append_printf (string, "%s<br/>", html_text);
+ g_free (html_text);
+ }
+}
+
+static gchar*
+modest_text_utils_quote_html (const gchar *text,
+ const gchar *cite,
+ const gchar *signature,
+ GList *attachments,
+ int limit)
+{
+ GString *result_string;
+
+ result_string =
+ g_string_new ( \
+ "<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">\n" \
+ "<html>\n" \
+ "<body>\n<br/>\n");
+
+ if (text || cite || signature) {
+ g_string_append (result_string, "<pre>\n");
+ if (signature) {
+ quote_html_add_to_gstring (result_string, SIGNATURE_MARKER);
+ quote_html_add_to_gstring (result_string, signature);
+ }
+ quote_html_add_to_gstring (result_string, cite);
+ quote_html_add_to_gstring (result_string, text);
+ if (attachments) {
+ gchar *attachments_string = quoted_attachments (attachments);
+ quote_html_add_to_gstring (result_string, attachments_string);
+ g_free (attachments_string);
+ }
+ g_string_append (result_string, "</pre>");
+ }
+ g_string_append (result_string, "</body>");
+ g_string_append (result_string, "</html>");
+
+ return g_string_free (result_string, FALSE);
+}
+
+static gint
+cmp_offsets_reverse (const url_match_t *match1, const url_match_t *match2)
+{
+ return match2->offset - match1->offset;
+}
+
+static gint url_matches_block = 0;
+static url_match_pattern_t patterns[] = MAIL_VIEWER_URL_MATCH_PATTERNS;
+
+
+static gboolean
+compile_patterns ()
+{
+ guint i;
+ const size_t pattern_num = sizeof(patterns)/sizeof(url_match_pattern_t);
+ for (i = 0; i != pattern_num; ++i) {
+ patterns[i].preg = g_slice_new0 (regex_t);
+
+ /* this should not happen */
+ if (regcomp (patterns[i].preg, patterns[i].regex,
+ REG_ICASE|REG_EXTENDED|REG_NEWLINE) != 0) {
+ g_warning ("%s: error in regexp:\n%s\n", __FUNCTION__, patterns[i].regex);
+ return FALSE;
+ }
+ }
+ return TRUE;
+}
+
+static void
+free_patterns ()
+{
+ guint i;
+ const size_t pattern_num = sizeof(patterns)/sizeof(url_match_pattern_t);
+ for (i = 0; i != pattern_num; ++i) {
+ regfree (patterns[i].preg);
+ g_slice_free (regex_t, patterns[i].preg);
+ } /* don't free patterns itself -- it's static */
+}
+
+void
+modest_text_utils_hyperlinkify_begin (void)
+{
+ if (url_matches_block == 0)
+ compile_patterns ();
+ url_matches_block ++;
+}
+
+void
+modest_text_utils_hyperlinkify_end (void)
+{
+ url_matches_block--;
+ if (url_matches_block <= 0)
+ free_patterns ();
+}
+
+
+static GSList*
+get_url_matches (GString *txt, gint offset)
+{
+ regmatch_t rm;
+ guint rv, i, tmp_offset = 0;
+ GSList *match_list = NULL;
+
+ const size_t pattern_num = sizeof(patterns)/sizeof(url_match_pattern_t);
+
+ /* initalize the regexps */
+ modest_text_utils_hyperlinkify_begin ();
+
+ /* find all the matches */
+ for (i = 0; i != pattern_num; ++i) {
+ tmp_offset = offset;
+ while (1) {
+ url_match_t *match;
+ gboolean is_submatch;
+ GSList *cursor;
+
+ if ((rv = regexec (patterns[i].preg, txt->str + tmp_offset, 1, &rm, 0)) != 0) {
+ g_return_val_if_fail (rv == REG_NOMATCH, NULL); /* this should not happen */
+ break; /* try next regexp */
+ }
+ if (rm.rm_so == -1)
+ break;
+
+ is_submatch = FALSE;
+ /* check old matches to see if this has already been matched */
+ cursor = match_list;
+ while (cursor && !is_submatch) {
+ const url_match_t *old_match =
+ (const url_match_t *) cursor->data;
+ guint new_offset = tmp_offset + rm.rm_so;
+ is_submatch = (new_offset > old_match->offset &&
+ new_offset < old_match->offset + old_match->len);
+ cursor = g_slist_next (cursor);
+ }
+
+ if (!is_submatch) {
+ /* make a list of our matches (<offset, len, prefix> tupels)*/
+ match = g_slice_new (url_match_t);
+ match->offset = tmp_offset + rm.rm_so;
+ match->len = rm.rm_eo - rm.rm_so;
+ match->prefix = patterns[i].prefix;
+ match_list = g_slist_prepend (match_list, match);
+ }
+ tmp_offset += rm.rm_eo;
+ }
+ }
+
+ modest_text_utils_hyperlinkify_end ();
+
+ /* now sort the list, so the matches are in reverse order of occurence.
+ * that way, we can do the replacements starting from the end, so we don't need
+ * to recalculate the offsets
+ */
+ match_list = g_slist_sort (match_list,
+ (GCompareFunc)cmp_offsets_reverse);
+ return match_list;
+}
+
+
+
+/* replace all occurences of needle in haystack with repl*/
+static gchar*
+replace_string (const gchar *haystack, const gchar *needle, gchar repl)
+{
+ gchar *str, *cursor;
+
+ if (!haystack || !needle || strlen(needle) == 0)
+ return haystack ? g_strdup(haystack) : NULL;
+
+ str = g_strdup (haystack);
+
+ for (cursor = str; cursor && *cursor; ++cursor) {
+ if (g_str_has_prefix (cursor, needle)) {
+ cursor[0] = repl;
+ memmove (cursor + 1,
+ cursor + strlen (needle),
+ strlen (cursor + strlen (needle)) + 1);
+ }
+ }
+
+ return str;
+}
+
+static void
+hyperlinkify_plain_text (GString *txt, gint offset)
+{
+ GSList *cursor;
+ GSList *match_list = get_url_matches (txt, offset);
+
+ /* we will work backwards, so the offsets stay valid */
+ for (cursor = match_list; cursor; cursor = cursor->next) {
+
+ url_match_t *match = (url_match_t*) cursor->data;
+ gchar *url = g_strndup (txt->str + match->offset, match->len);
+ gchar *repl = NULL; /* replacement */
+
+ /* the string still contains $(MARK_AMP_URI_STR)"amp;" for each
+ * '&' in the original, because of the text->html conversion.
+ * in the href-URL (and only there), we must convert that back to
+ * '&'
+ */
+ gchar *href_url = replace_string (url, MARK_AMP_URI_STR "amp;", '&');
+
+ /* the prefix is NULL: use the one that is already there */
+ repl = g_strdup_printf ("<a href=\"%s%s\">%s</a>",
+ match->prefix ? match->prefix : EMPTY_STRING,
+ href_url, url);
+
+ /* replace the old thing with our hyperlink
+ * replacement thing */
+ g_string_erase (txt, match->offset, match->len);
+ g_string_insert (txt, match->offset, repl);
+
+ g_free (url);
+ g_free (repl);
+ g_free (href_url);
+
+ g_slice_free (url_match_t, match);
+ }
+
+ g_slist_free (match_list);
+}
+
+void
+modest_text_utils_hyperlinkify (GString *string_buffer)
+{
+ gchar *after_body;
+ gint offset = 0;
+
+ after_body = strstr (string_buffer->str, "<body>");
+ if (after_body != NULL)
+ offset = after_body - string_buffer->str;
+ hyperlinkify_plain_text (string_buffer, offset);
+}
+
+
+/* for optimization reasons, we change the string in-place */
+void
+modest_text_utils_get_display_address (gchar *address)
+{
+ int i;
+
+ g_return_if_fail (address);
+
+ if (!address)
+ return;
+
+ /* should not be needed, and otherwise, we probably won't screw up the address
+ * more than it already is :)
+ * g_return_val_if_fail (g_utf8_validate (address, -1, NULL), NULL);
+ * */
+
+ /* remove leading whitespace */
+ if (address[0] == ' ')
+ g_strchug (address);
+
+ for (i = 0; address[i]; ++i) {
+ if (address[i] == '<') {
+ if (G_UNLIKELY(i == 0))
+ return; /* there's nothing else, leave it */
+ else {
+ address[i] = '\0'; /* terminate the string here */
+ return;
+ }
+ }
+ }
+}
+
+
+
+
+
+gchar *
+modest_text_utils_get_email_address (const gchar *full_address)
+{
+ const gchar *left, *right;
+
+ g_return_val_if_fail (full_address, NULL);
+
+ if (!full_address)
+ return NULL;
+
+ g_return_val_if_fail (g_utf8_validate (full_address, -1, NULL), NULL);
+
+ left = g_strrstr_len (full_address, strlen(full_address), "<");
+ if (left == NULL)
+ return g_strdup (full_address);
+
+ right = g_strstr_len (left, strlen(left), ">");
+ if (right == NULL)
+ return g_strdup (full_address);
+
+ return g_strndup (left + 1, right - left - 1);
+}
+
+gint
+modest_text_utils_get_subject_prefix_len (const gchar *sub)
+{
+ gint prefix_len = 0;
+
+ g_return_val_if_fail (sub, 0);
+
+ if (!sub)
+ return 0;
+
+ /* optimization: "Re", "RE", "re","Fwd", "FWD", "fwd","FW","Fw", "fw" */
+ if (sub[0] != 'R' && sub[0] != 'F' && sub[0] != 'r' && sub[0] != 'f')
+ return 0;
+ else if (sub[0] && sub[1] != 'e' && sub[1] != 'E' && sub[1] != 'w' && sub[1] != 'W')
+ return 0;
+
+ prefix_len = 2;
+ if (sub[2] == 'd')
+ ++prefix_len;
+
+ /* skip over a [...] block */
+ if (sub[prefix_len] == '[') {
+ int c = prefix_len + 1;
+ while (sub[c] && sub[c] != ']')
+ ++c;
+ if (!sub[c])
+ return 0; /* no end to the ']' found */
+ else
+ prefix_len = c + 1;
+ }
+
+ /* did we find the ':' ? */
+ if (sub[prefix_len] == ':') {
+ ++prefix_len;
+ if (sub[prefix_len] == ' ')
+ ++prefix_len;
+ prefix_len += modest_text_utils_get_subject_prefix_len (sub + prefix_len);
+/* g_warning ("['%s','%s']", sub, (char*) sub + prefix_len); */
+ return prefix_len;
+ } else
+ return 0;
+}
+
+
+gint
+modest_text_utils_utf8_strcmp (const gchar* s1, const gchar *s2, gboolean insensitive)
+{
+
+/* work even when s1 and/or s2 == NULL */
+ if (G_UNLIKELY(s1 == s2))
+ return 0;
+ if (G_UNLIKELY(!s1))
+ return -1;
+ if (G_UNLIKELY(!s2))
+ return 1;
+
+ /* if it's not case sensitive */
+ if (!insensitive) {
+
+ /* optimization: shortcut if first char is ascii */
+ if (((s1[0] & 0x80)== 0) && ((s2[0] & 0x80) == 0) &&
+ (s1[0] != s2[0]))
+ return s1[0] - s2[0];
+
+ return g_utf8_collate (s1, s2);
+
+ } else {
+ gint result;
+ gchar *n1, *n2;
+
+ /* optimization: shortcut if first char is ascii */
+ if (((s1[0] & 0x80) == 0) && ((s2[0] & 0x80) == 0) &&
+ (tolower(s1[0]) != tolower (s2[0])))
+ return tolower(s1[0]) - tolower(s2[0]);
+
+ n1 = g_utf8_strdown (s1, -1);
+ n2 = g_utf8_strdown (s2, -1);
+
+ result = g_utf8_collate (n1, n2);
+
+ g_free (n1);
+ g_free (n2);
+
+ return result;
+ }
+}
+
+
+const gchar*
+modest_text_utils_get_display_date (time_t date)
+{
+#define DATE_BUF_SIZE 64
+ static gchar date_buf[DATE_BUF_SIZE];
+
+ /* calculate the # of days since epoch for
+ * for today and for the date provided
+ * based on idea from pvanhoof */
+ int day = time(NULL) / (24 * 60 * 60);
+ int date_day = date / (24 * 60 * 60);
+
+ /* if it's today, show the time, if it's not today, show the date instead */
+
+ /* TODO: take into account the system config for 24/12h */
+ if (day == date_day) /* is the date today? */
+ modest_text_utils_strftime (date_buf, DATE_BUF_SIZE, _HL("wdgt_va_24h_time"), date);
+ else
+ modest_text_utils_strftime (date_buf, DATE_BUF_SIZE, _HL("wdgt_va_date"), date);
+
+ return date_buf; /* this is a static buffer, don't free! */
+}
+
+
+
+gboolean
+modest_text_utils_validate_folder_name (const gchar *folder_name)
+{
+ /* based on http://msdn2.microsoft.com/en-us/library/aa365247.aspx,
+ * with some extras */
+
+ guint len;
+ gint i;
+ const gchar **cursor = NULL;
+ const gchar *forbidden_names[] = { /* windows does not like these */
+ "CON", "PRN", "AUX", "NUL", ".", "..", "cur", "tmp", "new",
+ NULL /* cur, tmp, new are reserved for Maildir */
+ };
+
+ /* cannot be NULL */
+ if (!folder_name)
+ return FALSE;
+
+ /* cannot be empty */
+ len = strlen(folder_name);
+ if (len == 0)
+ return FALSE;
+
+ /* cannot start with a dot, vfat does not seem to like that */
+ if (folder_name[0] == '.')
+ return FALSE;
+
+ /* cannot start or end with a space */
+ if (g_ascii_isspace(folder_name[0]) || g_ascii_isspace(folder_name[len - 1]))
+ return FALSE;
+
+ /* cannot contain a forbidden char */
+ for (i = 0; i < len; i++)
+ if (modest_text_utils_is_forbidden_char (folder_name[i], FOLDER_NAME_FORBIDDEN_CHARS))
+ return FALSE;
+
+ /* Cannot contain Windows port numbers. I'd like to use GRegex
+ but it's still not available in Maemo. sergio */
+ if (!g_ascii_strncasecmp (folder_name, "LPT", 3) ||
+ !g_ascii_strncasecmp (folder_name, "COM", 3)) {
+ glong val;
+ gchar *endptr;
+
+ /* We skip the first 3 characters for the
+ comparison */
+ val = strtol(folder_name+3, &endptr, 10);
+
+ /* If the conversion to long succeeded then the string
+ is not valid for us */
+ if (*endptr == '\0')
+ return FALSE;
+ else
+ return TRUE;
+ }
+
+ /* cannot contain a forbidden word */
+ if (len <= 4) {
+ for (cursor = forbidden_names; cursor && *cursor; ++cursor) {
+ if (g_ascii_strcasecmp (folder_name, *cursor) == 0)
+ return FALSE;
+ }
+ }
+
+ return TRUE; /* it's valid! */
+}
+
+
+
+gboolean
+modest_text_utils_validate_domain_name (const gchar *domain)
+{
+ gboolean valid = FALSE;
+ regex_t rx;
+ const gchar* domain_regex = "^([a-z0-9-]*[a-z0-9]\\.)+[a-z0-9-]*[a-z0-9]$";
+
+ g_return_val_if_fail (domain, FALSE);
+
+ if (!domain)
+ return FALSE;
+
+ memset (&rx, 0, sizeof(regex_t)); /* coverity wants this... */
+
+ /* domain name: all alphanum or '-' or '.',
+ * but beginning/ending in alphanum */
+ if (regcomp (&rx, domain_regex, REG_ICASE|REG_EXTENDED|REG_NOSUB)) {
+ g_warning ("BUG: error in regexp");
+ return FALSE;
+ }
+
+ valid = (regexec (&rx, domain, 1, NULL, 0) == 0);
+ regfree (&rx);
+
+ return valid;
+}
+
+
+
+gboolean
+modest_text_utils_validate_email_address (const gchar *email_address,
+ const gchar **invalid_char_position)
+{
+ int count = 0;
+ const gchar *c = NULL, *domain = NULL;
+ static gchar *rfc822_specials = "()<>@,;:\\\"[]&";
+
+ if (invalid_char_position)
+ *invalid_char_position = NULL;
+
+ g_return_val_if_fail (email_address, FALSE);
+
+ /* check that the email adress contains exactly one @ */
+ if (!strstr(email_address, "@") ||
+ (strstr(email_address, "@") != g_strrstr(email_address, "@")))
+ return FALSE;
+
+ /* first we validate the name portion (name@domain) */
+ for (c = email_address; *c; c++) {
+ if (*c == '\"' &&
+ (c == email_address ||
+ *(c - 1) == '.' ||
+ *(c - 1) == '\"')) {
+ while (*++c) {
+ if (*c == '\"')
+ break;
+ if (*c == '\\' && (*++c == ' '))
+ continue;
+ if (*c <= ' ' || *c >= 127)
+ return FALSE;
+ }
+ if (!*c++)
+ return FALSE;
+ if (*c == '@')
+ break;
+ if (*c != '.')
+ return FALSE;
+ continue;
+ }
+ if (*c == '@')
+ break;
+ if (*c <= ' ' || *c >= 127)
+ return FALSE;
+ if (strchr(rfc822_specials, *c)) {
+ if (invalid_char_position)
+ *invalid_char_position = c;
+ return FALSE;
+ }
+ }
+ if (c == email_address || *(c - 1) == '.')
+ return FALSE;
+
+ /* next we validate the domain portion (name@domain) */
+ if (!*(domain = ++c))
+ return FALSE;
+ do {
+ if (*c == '.') {
+ if (c == domain || *(c - 1) == '.' || *(c + 1) == '\0')
+ return FALSE;
+ count++;
+ }
+ if (*c <= ' ' || *c >= 127)
+ return FALSE;
+ if (strchr(rfc822_specials, *c)) {
+ if (invalid_char_position)
+ *invalid_char_position = c;
+ return FALSE;
+ }
+ } while (*++c);
+
+ return (count >= 1) ? TRUE : FALSE;
+}
+
+gboolean
+modest_text_utils_validate_recipient (const gchar *recipient, const gchar **invalid_char_position)
+{
+ gchar *stripped, *current;
+ gchar *right_part;
+ gboolean has_error = FALSE;
+
+ if (invalid_char_position)
+ *invalid_char_position = NULL;
+
+ g_return_val_if_fail (recipient, FALSE);
+
+ if (modest_text_utils_validate_email_address (recipient, invalid_char_position))
+ return TRUE;
+
+ stripped = g_strdup (recipient);
+ stripped = g_strstrip (stripped);
+ current = stripped;
+
+ if (*current == '\0') {
+ g_free (stripped);
+ return FALSE;
+ }
+
+ /* quoted string */
+ if (*current == '\"') {
+ current = g_utf8_next_char (current);
+ has_error = TRUE;
+ for (; *current != '\0'; current = g_utf8_next_char (current)) {
+ if (*current == '\\') {
+ /* TODO: This causes a warning, which breaks the build,
+ * because a gchar cannot be < 0.
+ * murrayc.
+ if (current[1] <0) {
+ has_error = TRUE;
+ break;
+ }
+ */
+ } else if (*current == '\"') {
+ has_error = FALSE;
+ current = g_utf8_next_char (current);
+ break;
+ }
+ }
+ } else {
+ has_error = TRUE;
+ for (current = stripped ; *current != '\0'; current = g_utf8_next_char (current)) {
+ if (*current == '<') {
+ has_error = FALSE;
+ break;
+ }
+ }
+ }
+
+ if (has_error) {
+ g_free (stripped);
+ return FALSE;
+ }
+
+ right_part = g_strdup (current);
+ g_free (stripped);
+ right_part = g_strstrip (right_part);
+
+ if (g_str_has_prefix (right_part, "<") &&
+ g_str_has_suffix (right_part, ">")) {
+ gchar *address;
+ gboolean valid;
+
+ address = g_strndup (right_part+1, strlen (right_part) - 2);
+ g_free (right_part);
+ valid = modest_text_utils_validate_email_address (address, invalid_char_position);
+ g_free (address);
+ return valid;
+ } else {
+ g_free (right_part);
+ return FALSE;
+ }
+}
+
+
+gchar *
+modest_text_utils_get_display_size (guint64 size)
+{
+ const guint KB=1024;
+ const guint MB=1024 * KB;
+ const guint GB=1024 * MB;
+
+ if (0 <= size && size < KB)
+ return g_strdup_printf (_FM("sfil_li_size_kb"), 1);
+ else if (KB <= size && size < 100 * KB)
+ return g_strdup_printf (_FM("sfil_li_size_1kb_99kb"), size / KB);
+ else if (100*KB <= size && size < MB)
+ return g_strdup_printf (_FM("sfil_li_size_100kb_1mb"), (float) size / MB);
+ else if (MB <= size && size < 10*MB)
+ return g_strdup_printf (_FM("sfil_li_size_1mb_10mb"), (float) size / MB);
+ else if (10*MB <= size && size < GB)
+ return g_strdup_printf (_FM("sfil_li_size_10mb_1gb"), size / MB);
+ else
+ return g_strdup_printf (_FM("sfil_li_size_1gb_or_greater"), (float) size / GB);
+}
+
+static gchar *
+get_email_from_address (const gchar * address)
+{
+ gchar *left_limit, *right_limit;
+
+ left_limit = strstr (address, "<");
+ right_limit = g_strrstr (address, ">");
+
+ if ((left_limit == NULL)||(right_limit == NULL)|| (left_limit > right_limit))
+ return g_strdup (address);
+ else
+ return g_strndup (left_limit + 1, (right_limit - left_limit) - 1);
+}
+
+gchar *
+modest_text_utils_get_color_string (GdkColor *color)
+{
+ g_return_val_if_fail (color, NULL);
+
+ return g_strdup_printf ("#%x%x%x%x%x%x%x%x%x%x%x%x",
+ (color->red >> 12) & 0xf, (color->red >> 8) & 0xf,
+ (color->red >> 4) & 0xf, (color->red) & 0xf,
+ (color->green >> 12) & 0xf, (color->green >> 8) & 0xf,
+ (color->green >> 4) & 0xf, (color->green) & 0xf,
+ (color->blue >> 12) & 0xf, (color->blue >> 8) & 0xf,
+ (color->blue >> 4) & 0xf, (color->blue) & 0xf);
+}
+
+gchar *
+modest_text_utils_text_buffer_get_text (GtkTextBuffer *buffer)
+{
+ GtkTextIter start, end;
+ gchar *slice, *current;
+ GString *result = g_string_new ("");
+
+ g_return_val_if_fail (buffer && GTK_IS_TEXT_BUFFER (buffer), NULL);
+
+ gtk_text_buffer_get_start_iter (buffer, &start);
+ gtk_text_buffer_get_end_iter (buffer, &end);
+
+ slice = gtk_text_buffer_get_slice (buffer, &start, &end, FALSE);
+ current = slice;
+
+ while (current && current != '\0') {
+ if (g_utf8_get_char (current) == 0xFFFC) {
+ result = g_string_append_c (result, ' ');
+ current = g_utf8_next_char (current);
+ } else {
+ gchar *next = g_utf8_strchr (current, -1, 0xFFFC);
+ if (next == NULL) {
+ result = g_string_append (result, current);
+ } else {
+ result = g_string_append_len (result, current, next - current);
+ }
+ current = next;
+ }
+ }
+ g_free (slice);
+
+ return g_string_free (result, FALSE);
+
+}
+
+gboolean
+modest_text_utils_is_forbidden_char (const gchar character,
+ ModestTextUtilsForbiddenCharType type)
+{
+ gint i, len;
+ const gchar *forbidden_chars = NULL;
+
+ /* We need to get the length in the switch because the
+ compiler needs to know the size at compile time */
+ switch (type) {
+ case ACCOUNT_TITLE_FORBIDDEN_CHARS:
+ forbidden_chars = account_title_forbidden_chars;
+ len = G_N_ELEMENTS (account_title_forbidden_chars);
+ break;
+ case FOLDER_NAME_FORBIDDEN_CHARS:
+ forbidden_chars = folder_name_forbidden_chars;
+ len = G_N_ELEMENTS (folder_name_forbidden_chars);
+ break;
+ case USER_NAME_FORBIDDEN_NAMES:
+ forbidden_chars = user_name_forbidden_chars;
+ len = G_N_ELEMENTS (user_name_forbidden_chars);
+ break;
+ default:
+ g_return_val_if_reached (TRUE);
+ }
+
+ for (i = 0; i < len ; i++)
+ if (forbidden_chars[i] == character)
+ return TRUE;
+
+ return FALSE; /* it's valid! */
+}
+
+gchar *
+modest_text_utils_label_get_selection (GtkLabel *label)
+{
+ gint start, end;
+ gchar *selection;
+
+ if (gtk_label_get_selection_bounds (GTK_LABEL (label), &start, &end)) {
+ const gchar *start_offset;
+ const gchar *end_offset;
+ start_offset = gtk_label_get_text (GTK_LABEL (label));
+ start_offset = g_utf8_offset_to_pointer (start_offset, start);
+ end_offset = gtk_label_get_text (GTK_LABEL (label));
+ end_offset = g_utf8_offset_to_pointer (end_offset, end);
+ selection = g_strndup (start_offset, end_offset - start_offset);
+ return selection;
+ } else {
+ return g_strdup ("");
+ }
+}
+
+static gboolean
+_forward_search_image_char (gunichar ch,
+ gpointer userdata)
+{
+ return (ch == 0xFFFC);
+}
+
+gboolean
+modest_text_utils_buffer_selection_is_valid (GtkTextBuffer *buffer)
+{
+ gboolean result;
+ GtkTextIter start, end;
+
+ g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), FALSE);
+
+ result = gtk_text_buffer_get_has_selection (GTK_TEXT_BUFFER (buffer));
+
+ /* check there are no images in selection */
+ if (result) {
+ gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
+ if (gtk_text_iter_get_char (&start)== 0xFFFC)
+ result = FALSE;
+ else {
+ gtk_text_iter_backward_char (&end);
+ if (gtk_text_iter_forward_find_char (&start, _forward_search_image_char,
+ NULL, &end))
+ result = FALSE;
+ }
+
+ }
+
+ return result;
+}
+
+gchar *
+modest_text_utils_escape_mnemonics (const gchar *text)
+{
+ const gchar *p;
+ GString *result = NULL;
+
+ if (text == NULL)
+ return NULL;
+
+ result = g_string_new ("");
+ for (p = text; *p != '\0'; p++) {
+ if (*p == '_')
+ result = g_string_append (result, "__");
+ else
+ result = g_string_append_c (result, *p);
+ }
- return g_string_free(q, FALSE);
+ return g_string_free (result, FALSE);
}