mirror of
https://github.com/hexchat/hexchat.git
synced 2024-11-10 13:12:34 +01:00
Server line text-encoding-related fixes.
- Handle server lines that contain sequences which are invalid in the server encoding. Previously, these would cause the whole line to be interpreted in ISO-8859-1, but now they're simply replaced with an appropriate replacement character. - Removed prefs.utf8_locale. - Change default server encoding from system locale to UTF-8. - Always populate server->encoding with a non-null value - UTF-8. Fixes #1198
This commit is contained in:
Arnavion
parent
5569205d15
commit
5749c53484
@ -505,29 +505,11 @@ dcc_chat_line (struct DCC *dcc, char *line)
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session *sess;
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char *word[PDIWORDS];
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char *po;
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char *utf;
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char *conv;
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int ret, i;
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gssize len;
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gsize utf_len;
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char portbuf[32];
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message_tags_data no_tags = MESSAGE_TAGS_DATA_INIT;
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len = strlen (line);
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if (dcc->serv->encoding == NULL) /* system */
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utf = g_locale_to_utf8 (line, len, NULL, &utf_len, NULL);
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else
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utf = g_convert (line, len, "UTF-8", dcc->serv->encoding, 0, &utf_len, 0);
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if (utf)
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{
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line = utf;
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len = utf_len;
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}
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/* we really need valid UTF-8 now */
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conv = text_validate (&line, &len);
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line = text_invalid_encoding_to_utf8 (line, -1, dcc->serv->encoding, NULL);
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sess = find_dialog (dcc->serv, dcc->nick);
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if (!sess)
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@ -548,16 +530,14 @@ dcc_chat_line (struct DCC *dcc, char *line)
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/* did the plugin close it? */
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if (!g_slist_find (dcc_list, dcc))
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{
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g_free (utf);
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g_free (conv);
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g_free (line);
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return 1;
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}
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/* did the plugin eat the event? */
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if (ret)
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{
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g_free (utf);
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g_free (conv);
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g_free (line);
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return 0;
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}
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@ -574,8 +554,7 @@ dcc_chat_line (struct DCC *dcc, char *line)
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{
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inbound_privmsg (dcc->serv, dcc->nick, "", line, FALSE, &no_tags);
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}
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g_free (utf);
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g_free (conv);
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g_free (line);
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return 0;
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}
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@ -757,7 +757,6 @@ static void
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xchat_init (void)
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{
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char buf[3068];
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const char *cs = NULL;
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#ifdef WIN32
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WSADATA wsadata;
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@ -795,9 +794,6 @@ xchat_init (void)
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#endif
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#endif
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if (g_get_charset (&cs))
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prefs.utf8_locale = TRUE;
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load_text_events ();
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sound_load ();
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notify_load ();
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@ -317,7 +317,6 @@ struct hexchatprefs
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guint32 dcc_ip;
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unsigned int wait_on_exit; /* wait for logs to be flushed to disk IF we're connected */
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unsigned int utf8_locale;
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/* Tells us if we need to save, only when they've been edited.
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This is so that we continue using internal defaults (which can
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@ -970,9 +970,7 @@ hexchat_printf (hexchat_plugin *ph, const char *format, ...)
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void
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hexchat_command (hexchat_plugin *ph, const char *command)
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{
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char *command_nonconst;
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char *conv;
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gssize len = -1;
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char *command_utf8;
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if (!is_session (ph->context))
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{
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@ -981,11 +979,9 @@ hexchat_command (hexchat_plugin *ph, const char *command)
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}
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/* scripts/plugins continue to send non-UTF8... *sigh* */
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command_nonconst = g_strdup (command);
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conv = text_validate (&command_nonconst, &len);
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handle_command (ph->context, command_nonconst, FALSE);
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g_free (conv);
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g_free (command_nonconst);
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command_utf8 = text_invalid_encoding_to_utf8 (command, -1, "UTF-8", NULL);
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handle_command (ph->context, command_utf8, FALSE);
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g_free (command_utf8);
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}
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void
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@ -89,48 +89,18 @@ int
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tcp_send_real (void *ssl, int sok, char *encoding, char *buf, int len)
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{
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int ret;
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char *locale;
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gsize loc_len;
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if (encoding == NULL) /* system */
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{
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locale = NULL;
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if (!prefs.utf8_locale)
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{
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const gchar *charset;
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g_get_charset (&charset);
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locale = g_convert_with_fallback (buf, len, charset, "UTF-8", "?", 0, &loc_len, 0);
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}
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}
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gsize buf_encoded_len;
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gchar *buf_encoded = text_invalid_utf8_to_encoding (buf, len, encoding, &buf_encoded_len);
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#ifdef USE_OPENSSL
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if (!ssl)
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ret = send (sok, buf_encoded, buf_encoded_len, 0);
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else
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{
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locale = g_convert_with_fallback (buf, len, encoding, "UTF-8", "?", 0, &loc_len, 0);
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}
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if (locale)
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{
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len = loc_len;
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#ifdef USE_OPENSSL
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if (!ssl)
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ret = send (sok, locale, len, 0);
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else
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ret = _SSL_send (ssl, locale, len);
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ret = _SSL_send (ssl, buf_encoded, buf_encoded_len);
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#else
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ret = send (sok, locale, len, 0);
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ret = send (sok, buf_encoded, buf_encoded_len, 0);
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#endif
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g_free (locale);
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} else
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{
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#ifdef USE_OPENSSL
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if (!ssl)
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ret = send (sok, buf, len, 0);
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else
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ret = _SSL_send (ssl, buf, len);
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#else
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ret = send (sok, buf, len, 0);
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#endif
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}
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g_free (buf_encoded);
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return ret;
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}
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@ -287,94 +257,15 @@ close_socket (int sok)
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static void
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server_inline (server *serv, char *line, gssize len)
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{
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char *utf_line_allocated = NULL;
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gsize len_utf8;
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line = text_invalid_encoding_to_utf8 (line, len, serv->encoding, &len_utf8);
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/* Checks whether we're set to use UTF-8 charset */
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if ((serv->encoding == NULL && prefs.utf8_locale) /* Using system default - UTF-8 */ ||
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g_ascii_strcasecmp (serv->encoding, "UTF8") == 0 ||
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g_ascii_strcasecmp (serv->encoding, "UTF-8") == 0
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)
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{
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utf_line_allocated = text_validate (&line, &len);
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}
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else
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{
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/* Since the user has an explicit charset set, either
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via /charset command or from his non-UTF8 locale,
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we don't fallback to ISO-8859-1 and instead try to remove
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errnoeous octets till the string is convertable in the
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said charset. */
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const char *encoding = NULL;
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if (serv->encoding != NULL)
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encoding = serv->encoding;
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else
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g_get_charset (&encoding);
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if (encoding != NULL)
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{
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char *conv_line; /* holds a copy of the original string */
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gsize conv_len; /* tells g_convert how much of line to convert */
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gsize utf_len;
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gsize read_len;
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GError *err;
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gboolean retry;
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conv_line = g_malloc (len + 1);
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memcpy (conv_line, line, len);
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conv_line[len] = 0;
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conv_len = len;
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/* if CP1255, convert it with the NUL terminator.
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Works around SF bug #1122089 */
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if (serv->using_cp1255)
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conv_len++;
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do
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{
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err = NULL;
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retry = FALSE;
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utf_line_allocated = g_convert_with_fallback (conv_line, conv_len, "UTF-8", encoding, "?", &read_len, &utf_len, &err);
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if (err != NULL)
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{
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if (err->code == G_CONVERT_ERROR_ILLEGAL_SEQUENCE && conv_len > (read_len + 1))
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{
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/* Make our best bet by removing the erroneous char.
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This will work for casual 8-bit strings with non-standard chars. */
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memmove (conv_line + read_len, conv_line + read_len + 1, conv_len - read_len -1);
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conv_len--;
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retry = TRUE;
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}
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g_error_free (err);
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}
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} while (retry);
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g_free (conv_line);
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/* If any conversion has occured at all. Conversion might fail
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due to errors other than invalid sequences, e.g. unknown charset. */
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if (utf_line_allocated != NULL)
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{
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line = utf_line_allocated;
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len = utf_len;
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if (serv->using_cp1255 && len > 0)
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len--;
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}
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else
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{
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/* If all fails, treat as UTF-8 with fallback to ISO-8859-1. */
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utf_line_allocated = text_validate (&line, &len);
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}
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}
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}
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fe_add_rawlog (serv, line, len, FALSE);
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fe_add_rawlog (serv, line, len_utf8, FALSE);
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/* let proto-irc.c handle it */
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serv->p_inline (serv, line, len);
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serv->p_inline (serv, line, len_utf8);
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g_free (utf_line_allocated);
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g_free (line);
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}
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/* read data from socket */
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@ -1749,12 +1640,7 @@ server_set_encoding (server *serv, char *new_encoding)
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{
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char *space;
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if (serv->encoding)
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{
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g_free (serv->encoding);
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/* can be left as NULL to indicate system encoding */
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serv->encoding = NULL;
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}
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g_free (serv->encoding);
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if (new_encoding)
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{
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@ -1772,6 +1658,10 @@ server_set_encoding (server *serv, char *new_encoding)
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serv->encoding = g_strdup ("UTF-8");
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}
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}
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else
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{
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serv->encoding = g_strdup ("UTF-8");
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}
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}
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server *
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@ -1816,6 +1706,8 @@ server_set_defaults (server *serv)
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serv->nick_prefixes = g_strdup ("@%+");
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serv->nick_modes = g_strdup ("ohv");
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server_set_encoding (serv, "UTF-8");
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serv->nickcount = 1;
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serv->end_of_motd = FALSE;
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serv->is_away = FALSE;
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@ -658,33 +658,29 @@ log_open_or_close (session *sess)
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int
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get_stamp_str (char *fmt, time_t tim, char **ret)
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{
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char *loc = NULL;
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char dest[128];
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gsize len;
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gsize len_locale;
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gsize len_utf8;
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/* strftime wants the format string in LOCALE! */
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if (!prefs.utf8_locale)
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/* strftime requires the format string to be in locale encoding. */
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fmt = g_locale_from_utf8 (fmt, -1, NULL, NULL, NULL);
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len_locale = strftime_validated (dest, sizeof (dest), fmt, localtime (&tim));
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g_free (fmt);
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if (len_locale == 0)
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{
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const gchar *charset;
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g_get_charset (&charset);
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loc = g_convert_with_fallback (fmt, -1, charset, "UTF-8", "?", 0, 0, 0);
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if (loc)
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fmt = loc;
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return 0;
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}
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len = strftime_validated (dest, sizeof (dest), fmt, localtime (&tim));
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if (len)
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*ret = g_locale_to_utf8 (dest, len_locale, NULL, &len_utf8, NULL);
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if (*ret == NULL)
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{
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if (prefs.utf8_locale)
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*ret = g_strdup (dest);
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else
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*ret = g_locale_to_utf8 (dest, len, 0, &len, 0);
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return 0;
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}
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g_free (loc);
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return len;
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return len_utf8;
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}
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static void
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@ -753,154 +749,101 @@ log_write (session *sess, char *text, time_t ts)
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g_free (temp);
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}
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/* converts a CP1252/ISO-8859-1(5) hybrid to UTF-8 */
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/* Features: 1. It never fails, all 00-FF chars are converted to valid UTF-8 */
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/* 2. Uses CP1252 in the range 80-9f because ISO doesn't have any- */
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/* thing useful in this range and it helps us receive from mIRC */
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/* 3. The five undefined chars in CP1252 80-9f are replaced with */
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/* ISO-8859-15 control codes. */
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/* 4. Handles 0xa4 as a Euro symbol ala ISO-8859-15. */
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/* 5. Uses ISO-8859-1 (which matches CP1252) for everything else. */
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/* 6. This routine measured 3x faster than g_convert :) */
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static unsigned char *
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iso_8859_1_to_utf8 (unsigned char *text, int len, gsize *bytes_written)
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/**
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* Converts a given string in from_encoding to to_encoding. This is similar to g_convert_with_fallback, except that it is tolerant of sequences in
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* the original input that are invalid even in from_encoding. g_convert_with_fallback fails for such text, whereas this function replaces such a
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* sequence with the fallback string.
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*
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* If len is -1, strlen(text) is used to calculate the length. Do not pass -1 if text is supposed to contain \0 bytes, such as if from_encoding is a
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* multi-byte encoding like UTF-16.
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*/
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static gchar *
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text_convert_invalid (const gchar* text, gssize len, const gchar *to_encoding, const gchar *from_encoding, const gchar *fallback, gsize *len_out)
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{
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unsigned int idx;
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unsigned char *res, *output;
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static const unsigned short lowtable[] = /* 74 byte table for 80-a4 */
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{
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/* compressed utf-8 table: if the first byte's 0x20 bit is set, it
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indicates a 2-byte utf-8 sequence, otherwise prepend a 0xe2. */
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0x82ac, /* 80 Euro. CP1252 from here on... */
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0xe281, /* 81 NA */
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0x809a, /* 82 */
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0xe692, /* 83 */
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0x809e, /* 84 */
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0x80a6, /* 85 */
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0x80a0, /* 86 */
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0x80a1, /* 87 */
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0xeb86, /* 88 */
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0x80b0, /* 89 */
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0xe5a0, /* 8a */
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0x80b9, /* 8b */
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0xe592, /* 8c */
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0xe28d, /* 8d NA */
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0xe5bd, /* 8e */
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0xe28f, /* 8f NA */
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0xe290, /* 90 NA */
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0x8098, /* 91 */
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0x8099, /* 92 */
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0x809c, /* 93 */
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0x809d, /* 94 */
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0x80a2, /* 95 */
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0x8093, /* 96 */
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0x8094, /* 97 */
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0xeb9c, /* 98 */
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0x84a2, /* 99 */
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0xe5a1, /* 9a */
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0x80ba, /* 9b */
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0xe593, /* 9c */
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0xe29d, /* 9d NA */
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0xe5be, /* 9e */
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0xe5b8, /* 9f */
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0xe2a0, /* a0 */
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0xe2a1, /* a1 */
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0xe2a2, /* a2 */
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0xe2a3, /* a3 */
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0x82ac /* a4 ISO-8859-15 Euro. */
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};
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gchar *result_part;
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gsize result_part_len;
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const gchar *end;
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gsize invalid_start_pos;
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GString *result;
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const gchar *current_start;
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if (len == -1)
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len = strlen (text);
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/* worst case scenario: every byte turns into 3 bytes */
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res = output = g_malloc ((len * 3) + 1);
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while (len)
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{
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if (G_LIKELY (*text < 0x80))
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{
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*output = *text; /* ascii maps directly */
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}
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else if (*text <= 0xa4) /* 80-a4 use a lookup table */
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{
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idx = *text - 0x80;
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if (lowtable[idx] & 0x2000)
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{
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*output++ = (lowtable[idx] >> 8) & 0xdf; /* 2 byte utf-8 */
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*output = lowtable[idx] & 0xff;
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}
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else
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{
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*output++ = 0xe2; /* 3 byte utf-8 */
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*output++ = (lowtable[idx] >> 8) & 0xff;
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*output = lowtable[idx] & 0xff;
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}
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}
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else if (*text < 0xc0)
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{
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*output++ = 0xc2;
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*output = *text;
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}
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else
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{
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*output++ = 0xc3;
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*output = *text - 0x40;
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}
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output++;
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text++;
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len--;
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len = strlen (text);
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}
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*output = 0; /* terminate */
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*bytes_written = output - res;
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||||
|
||||
return res;
|
||||
end = text + len;
|
||||
|
||||
/* Find the first position of an invalid sequence. */
|
||||
result_part = g_convert (text, len, to_encoding, from_encoding, &invalid_start_pos, &result_part_len, NULL);
|
||||
if (result_part != NULL)
|
||||
{
|
||||
/* All text converted successfully on the first try. Return it. */
|
||||
|
||||
if (len_out != NULL)
|
||||
{
|
||||
*len_out = result_part_len;
|
||||
}
|
||||
|
||||
return result_part;
|
||||
}
|
||||
|
||||
/* One or more invalid sequences exist that need to be replaced with the fallback. */
|
||||
|
||||
result = g_string_sized_new (len);
|
||||
current_start = text;
|
||||
|
||||
for (;;)
|
||||
{
|
||||
g_assert (current_start + invalid_start_pos < end);
|
||||
|
||||
/* Convert everything before the position of the invalid sequence. It should be successful. */
|
||||
result_part = g_convert (current_start, invalid_start_pos, to_encoding, from_encoding, &invalid_start_pos, &result_part_len, NULL);
|
||||
g_assert (result_part != NULL);
|
||||
g_string_append_len (result, result_part, result_part_len);
|
||||
g_free (result_part);
|
||||
|
||||
/* Append the fallback */
|
||||
g_string_append (result, fallback);
|
||||
|
||||
/* Now try converting everything after the invalid sequence. */
|
||||
current_start += invalid_start_pos + 1;
|
||||
|
||||
result_part = g_convert (current_start, end - current_start, to_encoding, from_encoding, &invalid_start_pos, &result_part_len, NULL);
|
||||
if (result_part != NULL)
|
||||
{
|
||||
/* The rest of the text converted successfully. Append it and return the whole converted text. */
|
||||
|
||||
g_string_append_len (result, result_part, result_part_len);
|
||||
g_free (result_part);
|
||||
|
||||
if (len_out != NULL)
|
||||
{
|
||||
*len_out = result->len;
|
||||
}
|
||||
|
||||
return g_string_free (result, FALSE);
|
||||
}
|
||||
|
||||
/* The rest of the text didn't convert successfully. invalid_start_pos has the position of the next invalid sequence. */
|
||||
}
|
||||
}
|
||||
|
||||
char *
|
||||
text_validate (char **text, gssize *len)
|
||||
gchar *
|
||||
text_invalid_utf8_to_encoding (const gchar* text, gssize len, const gchar *to_encoding, gsize *len_out)
|
||||
{
|
||||
char *utf;
|
||||
gsize utf_len;
|
||||
return text_convert_invalid (text, len, to_encoding, "UTF-8", "?", len_out);
|
||||
}
|
||||
|
||||
/* valid utf8? */
|
||||
if (g_utf8_validate (*text, *len, 0))
|
||||
return NULL;
|
||||
|
||||
#ifdef WIN32
|
||||
if (GetACP () == 1252) /* our routine is better than iconv's 1252 */
|
||||
#else
|
||||
if (prefs.utf8_locale)
|
||||
#endif
|
||||
/* fallback to iso-8859-1 */
|
||||
utf = iso_8859_1_to_utf8 (*text, *len, &utf_len);
|
||||
else
|
||||
{
|
||||
/* fallback to locale */
|
||||
utf = g_locale_to_utf8 (*text, *len, 0, &utf_len, NULL);
|
||||
if (!utf)
|
||||
utf = iso_8859_1_to_utf8 (*text, *len, &utf_len);
|
||||
}
|
||||
|
||||
if (!utf)
|
||||
{
|
||||
*text = g_strdup ("%INVALID%");
|
||||
*len = 9;
|
||||
} else
|
||||
{
|
||||
*text = utf;
|
||||
*len = utf_len;
|
||||
}
|
||||
|
||||
return utf;
|
||||
gchar *
|
||||
text_invalid_encoding_to_utf8 (const gchar* text, gssize len, const gchar *from_encoding, gsize *len_out)
|
||||
{
|
||||
return text_convert_invalid (text, len, "UTF-8", from_encoding, "\357\277\275", len_out);
|
||||
}
|
||||
|
||||
void
|
||||
PrintTextTimeStamp (session *sess, char *text, time_t timestamp)
|
||||
{
|
||||
char *conv;
|
||||
|
||||
if (!sess)
|
||||
{
|
||||
if (!sess_list)
|
||||
@ -909,22 +852,19 @@ PrintTextTimeStamp (session *sess, char *text, time_t timestamp)
|
||||
}
|
||||
|
||||
/* make sure it's valid utf8 */
|
||||
if (text[0] == 0)
|
||||
if (text[0] == '\0')
|
||||
{
|
||||
text = "\n";
|
||||
conv = NULL;
|
||||
text = g_strdup ("\n");
|
||||
}
|
||||
else
|
||||
{
|
||||
gssize len = -1;
|
||||
conv = text_validate ((char **)&text, &len);
|
||||
text = text_invalid_encoding_to_utf8 (text, -1, "UTF-8", NULL);
|
||||
}
|
||||
|
||||
log_write (sess, text, timestamp);
|
||||
scrollback_save (sess, text);
|
||||
fe_print_text (sess, text, timestamp, FALSE);
|
||||
|
||||
g_free (conv);
|
||||
g_free (text);
|
||||
}
|
||||
|
||||
void
|
||||
|
||||
@ -57,7 +57,8 @@ void text_emit (int index, session *sess, char *a, char *b, char *c, char *d,
|
||||
time_t timestamp);
|
||||
int text_emit_by_name (char *name, session *sess, time_t timestamp,
|
||||
char *a, char *b, char *c, char *d);
|
||||
char *text_validate (char **text, gssize *len);
|
||||
gchar *text_invalid_utf8_to_encoding (const gchar* text, gssize len, const gchar *to_encoding, gsize *len_out);
|
||||
gchar *text_invalid_encoding_to_utf8 (const gchar* text, gssize len, const gchar *from_encoding, gsize *len_out);
|
||||
int get_stamp_str (char *fmt, time_t tim, char **ret);
|
||||
void format_event (session *sess, int index, char **args, char *o, gsize sizeofo, unsigned int stripcolor_args);
|
||||
char *text_find_format_string (char *name);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user