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irc: add support of UTF8MAPPING, add support of optional server in info "irc_is_nick" (closes #1528)

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This commit is contained in:
Sébastien Helleu
2020-06-20 17:28:28 +02:00
parent bf964de939
commit 12051a506d
34 changed files with 389 additions and 132 deletions
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src/plugins/irc/irc-nick.c
+44 -12
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@@ -62,31 +62,63 @@ irc_nick_valid (struct t_irc_channel *channel, struct t_irc_nick *nick)
}
/*
* Checks if string is a valid nick string (RFC 1459).
* Checks if string is a valid nick string, using server UTF8MAPPING.
*
* Returns:
* 1: string is a valid nick
* 0: string is not a valid nick
* 1: string is a valid nick on this server
* 0: string is not a valid nick on this server
*/
int
irc_nick_is_nick (const char *string)
irc_nick_is_nick (struct t_irc_server *server, const char *string)
{
const char *ptr;
const char *ptr_string;
int utf8mapping;
if (!string || !string[0])
return 0;
/* first char must not be a number or hyphen */
ptr = string;
if (strchr ("0123456789-", *ptr))
return 0;
utf8mapping = (server) ? server->utf8mapping : IRC_SERVER_UTF8MAPPING_NONE;
while (ptr && ptr[0])
/* check length of nick in bytes (if we have a limit in the server) */
if (server && (server->nick_max_length > 0)
&& (int)strlen (string) > server->nick_max_length)
{
if (!strchr (IRC_NICK_VALID_CHARS, *ptr))
/* nick is too long */
return 0;
}
/* check if nick is UTF-8 valid */
if ((utf8mapping == IRC_SERVER_UTF8MAPPING_RFC8265)
&& !weechat_utf8_is_valid (string, -1, NULL))
{
/* invalid UTF-8 */
return 0;
}
/* check the first char in the nick */
if ((utf8mapping == IRC_SERVER_UTF8MAPPING_NONE)
&& strchr ("0123456789-", string[0]))
{
/* first char is invalid */
return 0;
}
/* check if there are forbidden chars in nick */
ptr_string = string;
while (ptr_string && ptr_string[0])
{
if ((utf8mapping == IRC_SERVER_UTF8MAPPING_NONE)
&& !strchr (IRC_NICK_VALID_CHARS, ptr_string[0]))
{
return 0;
ptr++;
}
if ((utf8mapping == IRC_SERVER_UTF8MAPPING_RFC8265)
&& strchr (IRC_NICK_INVALID_CHARS, ptr_string[0]))
{
return 0;
}
ptr_string = weechat_utf8_next_char (ptr_string);
}
return 1;