X-Git-Url: http://git.maemo.org/git/?p=modest;a=blobdiff_plain;f=src%2Fmodest-text-utils.c;h=fb4da8426d6a96c8a42a6552903a0649aff382ee;hp=2223fd1b0a880373e4c3c6dbf117d1e53277b70e;hb=12a672c559d983c4e49a7e4054ee14c0177ecb1c;hpb=4d39841513a3a7f7aa9d38ab97cb9fcc9171e80b

diff --git a/src/modest-text-utils.c b/src/modest-text-utils.c
index 2223fd1..fb4da84 100644
--- a/src/modest-text-utils.c
+++ b/src/modest-text-utils.c
@@ -163,6 +163,8 @@ static gchar*   modest_text_utils_quote_html       (const gchar *text,
 						    GList *attachments,
 						    int limit);
 static gchar*   get_email_from_address (const gchar *address);
+static void     remove_extra_spaces (gchar *string);
+
 
 
 /* ******************************************************************* */
@@ -295,12 +297,13 @@ modest_text_utils_strftime(char *s, gsize max, const char *fmt, time_t timet)
 }
 
 gchar *
-modest_text_utils_derived_subject (const gchar *subject, const gchar *prefix)
+modest_text_utils_derived_subject (const gchar *subject, gboolean is_reply)
 {
-	gchar *tmp, *subject_dup, *retval;
-	gint prefix_len;
-
-	g_return_val_if_fail (prefix, NULL);
+	gchar *tmp, *subject_dup, *retval, *prefix;
+	const gchar *untranslated_prefix;
+	gint prefix_len, untranslated_prefix_len;
+	gboolean translated_found = FALSE;
+	gboolean first_time;
 
 	if (!subject || subject[0] == '\0')
 		subject = _("mail_va_no_subject");
@@ -308,24 +311,99 @@ modest_text_utils_derived_subject (const gchar *subject, const gchar *prefix)
 	subject_dup = g_strdup (subject);
 	tmp = g_strchug (subject_dup);
 
+	prefix = (is_reply) ? _("mail_va_re") : _("mail_va_fw");
+	prefix = g_strconcat (prefix, ":", NULL);
+	prefix_len = g_utf8_strlen (prefix, -1);
+
+	untranslated_prefix =  (is_reply) ? "Re:" : "Fw:";
+	untranslated_prefix_len = 3;
+
 	/* We do not want things like "Re: Re: Re:" or "Fw: Fw:" so
 	   delete the previous ones */
-	prefix_len = strlen (prefix);
+	first_time = TRUE;
 	do {
 		if (g_str_has_prefix (tmp, prefix)) {
 			tmp += prefix_len;
 			tmp = g_strchug (tmp);
+			/* Do not consider translated prefixes in the
+			   middle of a Re:Re:..Re: like sequence */
+			if (G_UNLIKELY (first_time))
+				translated_found = TRUE;
+		} else if (g_str_has_prefix (tmp, untranslated_prefix)) {
+			tmp += untranslated_prefix_len;
+			tmp = g_strchug (tmp);
 		} else {
-			break;
+			gchar *prefix_down, *tmp_down;
+
+			/* We need this to properly check the cases of
+			   some clients adding FW: instead of Fw: for
+			   example */
+			prefix_down = g_utf8_strdown (prefix, -1);
+			tmp_down = g_utf8_strdown (tmp, -1);
+			if (g_str_has_prefix (tmp_down, prefix_down)) {
+				tmp += prefix_len;
+				tmp = g_strchug (tmp);
+				g_free (prefix_down);
+				g_free (tmp_down);
+			} else {
+				g_free (prefix_down);
+				g_free (tmp_down);
+				break;
+			}
 		}
+		first_time = FALSE;
 	} while (tmp);
 
-	retval = g_strdup_printf ("%s %s", prefix, tmp);
+	if (!g_strcmp0 (subject, tmp)) {
+		/* normal case */
+		retval = g_strdup_printf ("%s %s", untranslated_prefix, tmp);
+	} else {
+		if (translated_found) {
+			/* Found a translated prefix, i.e, "VS:" in Finish */
+			retval = g_strdup_printf ("%s %s", prefix, tmp);
+		} else {
+			retval = g_strdup_printf ("%s %s", untranslated_prefix, tmp);
+		}
+	}
 	g_free (subject_dup);
+	g_free (prefix);
 
 	return retval;
 }
 
+
+/* Performs a case-insensitive strstr for ASCII strings */
+static const gchar *
+ascii_stristr(const gchar *haystack, const gchar *needle)
+{
+	int needle_len;
+	int haystack_len;
+	const gchar *pos;
+	const gchar *max_pos;
+
+	if (haystack == NULL || needle == NULL) {
+		return haystack;  /* as in strstr */
+	}
+
+	needle_len = strlen(needle);
+
+	if (needle_len == 0) {
+		return haystack;  /* as in strstr */
+	}
+
+	haystack_len = strlen(haystack);
+	max_pos = haystack + haystack_len - needle_len;
+
+	for (pos = haystack; pos <= max_pos; pos++) {
+		if (g_ascii_strncasecmp (pos, needle, needle_len) == 0) {
+			return pos;
+		}
+	}
+
+	return NULL;
+}
+
+
 gchar*
 modest_text_utils_remove_address (const gchar *address_list, const gchar *address)
 {
@@ -334,26 +412,26 @@ modest_text_utils_remove_address (const gchar *address_list, const gchar *addres
 	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)) {
+	if (!ascii_stristr ((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 (!ascii_stristr ((const char *) token, (const char *) email_address)) {
 			if (filtered_emails->len == 0)
 				g_string_append_printf (filtered_emails, "%s", g_strstrip (token));
 			else
@@ -438,7 +516,7 @@ modest_text_utils_convert_buffer_to_html_start (GString *html, const gchar *data
 		guchar kar = data[i];
 		
 		if (space_seen && kar != ' ') {
-			g_string_append (html, "&nbsp;");
+			g_string_append (html, "&#32;");
 			space_seen = FALSE;
 		}
 		
@@ -475,7 +553,6 @@ modest_text_utils_convert_buffer_to_html_start (GString *html, const gchar *data
 			break_dist = 0;
 			if (space_seen) { /* second space in a row */
 				g_string_append (html, "&nbsp; ");
-				space_seen = FALSE;
 			} else
 				space_seen = TRUE;
 			break;
@@ -556,59 +633,52 @@ modest_text_utils_convert_to_html_body (const gchar *data, gssize n, gboolean hy
 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;
+	GString *str;
+	gchar *start, *cur;
+
+	if (!addresses)
+		return;
 
-	g_return_if_fail (start_indexes != NULL);
-	g_return_if_fail (end_indexes != NULL);
+	if (strlen (addresses) == 0)
+		return;
 
-	start = (gchar *) addresses;
-	current = start;
-	last_blank = start;
+	str = g_string_new ("");
+	start = (gchar*) addresses;
+	cur = (gchar*) addresses;
 
-	while (*current != '\0') {
-		if ((start == current)&&((*current == ' ')||(*current == ',')||(*current == ';'))) {
-			start = g_utf8_next_char (start);
-			start_offset++;
-			last_blank = current;
-		} else if ((*current == ',')||(*current == ';')) {
+	for (cur = start; *cur != '\0'; cur = g_utf8_next_char (cur)) {
+		if (*cur == ',' || *cur == ';') {
 			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;
+			gchar *next_char = g_utf8_next_char (cur);
+
+			if (!g_utf8_strchr (start, (cur - start + 1), g_utf8_get_char ("@")) &&
+			    next_char && *next_char != '\n' && *next_char != '\0')
+				continue;
+
+			start_index = g_new0 (gint, 1);
+			end_index = g_new0 (gint, 1);
+			*start_index = g_utf8_pointer_to_offset (addresses, start);
+			*end_index = g_utf8_pointer_to_offset (addresses, cur);;
 			*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 ++;
-			}
+			start = g_utf8_next_char (cur);
 		}
-				
-		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);
+	if (start != cur) {
+		gint *start_index, *end_index;
+		start_index = g_new0 (gint, 1);
+		end_index = g_new0 (gint, 1);
+		*start_index = g_utf8_pointer_to_offset (addresses, start);
+		*end_index = g_utf8_pointer_to_offset (addresses, cur);;
+		*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;
+	if (*start_indexes)
+		*start_indexes = g_slist_reverse (*start_indexes);
+	if (*end_indexes)
+		*end_indexes = g_slist_reverse (*end_indexes);
 }
 
 
@@ -622,15 +692,16 @@ modest_text_utils_split_addresses_list (const gchar *addresses)
 	gboolean after_at = FALSE;
 
 	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] == ';'))
+
+	/* skip any space, ',', ';' '\n' at the start */
+	while (my_addrs && (my_addrs[0] == ' ' || my_addrs[0] == ',' ||
+			    my_addrs[0] == ';' || my_addrs[0] == '\n'))
 	       ++my_addrs;
 
 	/* are we at the end of addresses list? */
 	if (!my_addrs[0])
 		return NULL;
-	
+
 	/* nope, we are at the start of some address
 	 * now, let's find the end of the address */
 	end = my_addrs + 1;
@@ -653,12 +724,56 @@ modest_text_utils_split_addresses_list (const gchar *addresses)
 	addr = g_strndup (my_addrs, end - my_addrs);
 	g_strchomp (addr);
 
+	remove_extra_spaces (addr);
+
 	head = g_slist_append (NULL, addr);
 	head->next = modest_text_utils_split_addresses_list (end); /* recurse */
 
 	return head;
 }
 
+gchar *
+modest_text_utils_join_addresses (const gchar *from,
+				  const gchar *to,
+				  const gchar *cc,
+				  const gchar *bcc)
+{
+	GString *buffer;
+	gboolean add_separator = FALSE;
+
+	buffer = g_string_new ("");
+
+	if (from && strlen (from)) {
+		buffer = g_string_append (buffer, from);
+		add_separator = TRUE;
+	}
+	if (to && strlen (to)) {
+		if (add_separator)
+			buffer = g_string_append (buffer, "; ");
+		else
+			add_separator = TRUE;
+
+		buffer = g_string_append (buffer, to);
+	}
+	if (cc && strlen (cc)) {
+		if (add_separator)
+			buffer = g_string_append (buffer, "; ");
+		else
+			add_separator = TRUE;
+
+		buffer = g_string_append (buffer, cc);
+	}
+	if (bcc && strlen (bcc)) {
+		if (add_separator)
+			buffer = g_string_append (buffer, "; ");
+		else
+			add_separator = TRUE;
+
+		buffer = g_string_append (buffer, bcc);
+	}
+
+	return g_string_free (buffer, FALSE);
+}
 
 void
 modest_text_utils_address_range_at_position (const gchar *recipients_list,
@@ -925,6 +1040,7 @@ modest_text_utils_quote_body (GString *output, const gchar *text,
 				g_string_prepend (l, remaining->str);
 			} else {
 				do {
+					gunichar remaining_first;
 					breakpoint =
 						get_breakpoint (remaining->str,
 								rem_indent,
@@ -933,9 +1049,11 @@ modest_text_utils_quote_body (GString *output, const gchar *text,
 						       remaining, breakpoint);
 					g_string_erase (remaining, 0,
 							breakpoint);
-					if (remaining->str[0] == ' ') {
-						g_string_erase (remaining, 0,
-								1);
+					remaining_first = g_utf8_get_char_validated (remaining->str, remaining->len);
+					if (remaining_first != ((gunichar) -1)) {
+						if (g_unichar_isspace (remaining_first)) {
+							g_string_erase (remaining, 0, g_utf8_next_char (remaining->str) - remaining->str);
+						}
 					}
 				} while (remaining->len);
 			}
@@ -1648,6 +1766,7 @@ modest_text_utils_validate_recipient (const gchar *recipient, const gchar **inva
 
 	/* quoted string */
 	if (*current == '\"') {
+		gchar *last_quote = NULL;
 		current = g_utf8_next_char (current);
 		has_error = TRUE;
 		for (; *current != '\0'; current = g_utf8_next_char (current)) {
@@ -1663,9 +1782,11 @@ modest_text_utils_validate_recipient (const gchar *recipient, const gchar **inva
 			} else if (*current == '\"') {
 				has_error = FALSE;
 				current = g_utf8_next_char (current);
-				break;
+				last_quote = current;
 			}
 		}
+		if (last_quote)
+			current = g_utf8_next_char (last_quote);
 	} else {
 		has_error = TRUE;
 		for (current = stripped ; *current != '\0'; current = g_utf8_next_char (current)) {
@@ -1685,6 +1806,9 @@ modest_text_utils_validate_recipient (const gchar *recipient, const gchar **inva
 	g_free (stripped);
 	right_part = g_strstrip (right_part);
 
+	if (g_str_has_suffix (right_part, ",") || g_str_has_suffix (right_part, ";"))
+               right_part [(strlen (right_part) - 1)] = '\0';
+
 	if (g_str_has_prefix (right_part, "<") &&
 	    g_str_has_suffix (right_part, ">")) {
 		gchar *address;
@@ -1886,6 +2010,20 @@ remove_quotes (gchar **quotes)
 	}
 }
 
+static void
+remove_extra_spaces (gchar *string)
+{
+	gchar *start;
+
+	start = string;
+	while (start && start[0] != '\0') {
+		if ((start[0] == ' ') && (start[1] == ' ')) {
+			g_strchug (start+1);
+		}
+		start++;
+	}
+}
+
 gchar *
 modest_text_utils_escape_mnemonics (const gchar *text)
 {
@@ -1922,6 +2060,7 @@ modest_text_utils_simplify_recipients (const gchar *recipients)
 	for (node = addresses; node != NULL; node = g_slist_next (node)) {
 		const gchar *address = (const gchar *) node->data;
 		gchar *left_limit, *right_limit;
+
 		left_limit = strstr (address, "<");
 		right_limit = g_strrstr (address, ">");
 
@@ -1955,3 +2094,152 @@ modest_text_utils_simplify_recipients (const gchar *recipients)
 	return g_string_free (result, FALSE);
 
 }
+
+GSList *
+modest_text_utils_remove_duplicate_addresses_list (GSList *address_list)
+{
+	GSList *new_list, *iter;
+	GHashTable *table;
+
+	g_return_val_if_fail (address_list, NULL);
+
+	table = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
+
+	new_list = address_list;
+	iter = address_list;
+	while (iter) {
+		const gchar* address = (const gchar*)iter->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) {
+			g_hash_table_insert (table, (gchar*)email, GINT_TO_POINTER(1));
+			iter = g_slist_next (iter);
+		} else {
+			GSList *tmp = g_slist_next (iter);
+			new_list = g_slist_delete_link (new_list, iter);
+			iter = tmp;
+		}
+	}
+
+	g_hash_table_unref (table);
+
+	return new_list;
+}
+
+gchar *
+modest_text_utils_get_secure_header (const gchar *value,
+				     const gchar *header)
+{
+	const gint max_len = 16384;
+	gchar *new_value = NULL;
+	gchar *needle = g_strrstr (value, header);
+
+	if (needle && value != needle)
+		new_value = g_strdup (needle + strlen (header));
+
+	if (!new_value)
+		new_value = g_strdup (value);
+
+	/* Do a max length check to prevent DoS attacks caused by huge
+	   malformed headers */
+	if (g_utf8_validate (new_value, -1, NULL)) {
+		if (g_utf8_strlen (new_value, -1) > max_len) {
+			gchar *tmp = g_malloc0 (max_len * 4);
+			g_utf8_strncpy (tmp, (const gchar *) new_value, max_len);
+			g_free (new_value);
+			new_value = tmp;
+		}
+	} else {
+		if (strlen (new_value) > max_len) {
+			gchar *tmp = g_malloc0 (max_len);
+			strncpy (new_value, tmp, max_len);
+			g_free (new_value);
+			new_value = tmp;
+		}
+	}
+
+	return new_value;
+}
+
+static gboolean
+is_quoted (const char *start, const gchar *end)
+{
+	gchar *c;
+
+	c = (gchar *) start;
+	while (*c == ' ')
+		c = g_utf8_next_char (c);
+
+	if (*c == '\0' || *c != '\"')
+		return FALSE;
+
+	c = (gchar *) end;
+	while (*c == ' ' && c != start)
+		c = g_utf8_prev_char (c);
+
+	if (c == start || *c != '\"')
+		return FALSE;
+
+	return TRUE;
+}
+
+
+static void
+quote_name_part (GString **str, gchar **cur, gchar **start)
+{
+	gchar *blank;
+	gint str_len = *cur - *start;
+
+	while (**start == ' ') {
+		*start = g_utf8_next_char (*start);
+		str_len--;
+	}
+
+	blank = g_utf8_strrchr (*start, str_len, g_utf8_get_char (" "));
+	if (blank && (blank != *start)) {
+		if (is_quoted (*start, blank - 1)) {
+			*str = g_string_append_len (*str, *start, str_len);
+			*str = g_string_append (*str, ";");
+			*start = g_utf8_next_char (*cur);
+		} else {
+			*str = g_string_append_c (*str, '"');
+			*str = g_string_append_len (*str, *start, (blank - *start));
+			*str = g_string_append_c (*str, '"');
+			*str = g_string_append_len (*str, blank, (*cur - blank));
+			*str = g_string_append (*str, ";");
+			*start = g_utf8_next_char (*cur);
+		}
+	} else {
+		*str = g_string_append_len (*str, *start, str_len);
+		*str = g_string_append (*str, ";");
+		*start = g_utf8_next_char (*cur);
+	}
+}
+
+gchar *
+modest_text_utils_quote_names (const gchar *recipients)
+{
+	GString *str;
+	gchar *start, *cur;
+
+	str = g_string_new ("");
+	start = (gchar*) recipients;
+	cur = (gchar*) recipients;
+
+	for (cur = start; *cur != '\0'; cur = g_utf8_next_char (cur)) {
+		if (*cur == ',' || *cur == ';') {
+			if (!g_utf8_strchr (start, (cur - start + 1), g_utf8_get_char ("@")))
+				continue;
+			quote_name_part (&str, &cur, &start);
+		}
+	}
+
+	quote_name_part (&str, &cur, &start);
+
+	return g_string_free (str, FALSE);
+}