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Fix capability negotiation ending before sasl finishes with multi-line cap

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Closes #2398
This commit is contained in:
Patrick Griffis 2019-11-24 13:01:48 -08:00
parent ad5be08a07
commit 7d9f3acfc9
4 changed files with 20 additions and 7 deletions
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1
src/common/hexchat.h
View File

@ -578,6 +578,7 @@ typedef struct server
unsigned int sasl_mech; /* mechanism for sasl auth */
unsigned int sent_capend:1; /* have sent CAP END yet */
unsigned int waiting_on_cap:1; /* waiting on another line of CAP LS */
unsigned int waiting_on_sasl:1; /* waiting on sasl */
#ifdef USE_OPENSSL
unsigned int use_ssl:1; /* is server SSL capable? */
unsigned int accept_invalid_cert:1;/* ignore result of server's cert. verify */

21
src/common/inbound.c
View File

@ -1768,7 +1768,6 @@ inbound_cap_ls (server *serv, char *nick, char *extensions_str,
{
char buffer[500]; /* buffer for requesting capabilities and emitting the signal */
gboolean want_cap = FALSE; /* format the CAP REQ string based on previous capabilities being requested or not */
gboolean want_sasl = FALSE; /* CAP END shouldn't be sent when SASL is requested, it needs further responses */
char **extensions;
int i;
@ -1816,7 +1815,7 @@ inbound_cap_ls (server *serv, char *nick, char *extensions_str,
serv->sasl_mech = sasl_mech;
}
want_cap = TRUE;
want_sasl = TRUE;
serv->waiting_on_sasl = TRUE;
g_strlcat (buffer, "sasl ", sizeof(buffer));
continue;
}
@ -1842,7 +1841,7 @@ inbound_cap_ls (server *serv, char *nick, char *extensions_str,
tags_data->timestamp);
tcp_sendf (serv, "%s\r\n", g_strchomp (buffer));
}
if (!want_sasl && !serv->waiting_on_cap)
if (!serv->waiting_on_sasl && !serv->waiting_on_cap)
{
/* if we use SASL, CAP END is dealt via raw numerics */
serv->sent_capend = TRUE;
@ -1851,13 +1850,25 @@ inbound_cap_ls (server *serv, char *nick, char *extensions_str,
}
void
inbound_cap_nak (server *serv, const message_tags_data *tags_data)
inbound_cap_nak (server *serv, char *extensions_str, const message_tags_data *tags_data)
{
if (!serv->waiting_on_cap && !serv->sent_capend)
char **extensions;
int i;
extensions = g_strsplit (extensions_str, " ", 0);
for (i=0; extensions[i]; i++)
{
if (!g_strcmp0 (extensions[i], "sasl"))
serv->waiting_on_sasl = FALSE;
}
if (!serv->waiting_on_cap && !serv->waiting_on_sasl && !serv->sent_capend)
{
serv->sent_capend = TRUE;
tcp_send_len (serv, "CAP END\r\n", 9);
}
g_strfreev (extensions);
}
void

2
src/common/inbound.h
View File

@ -92,7 +92,7 @@ void inbound_cap_ack (server *serv, char *nick, char *extensions,
const message_tags_data *tags_data);
void inbound_cap_ls (server *serv, char *nick, char *extensions,
const message_tags_data *tags_data);
void inbound_cap_nak (server *serv, const message_tags_data *tags_data);
void inbound_cap_nak (server *serv, char *extensions, const message_tags_data *tags_data);
void inbound_cap_list (server *serv, char *nick, char *extensions,
const message_tags_data *tags_data);
void inbound_cap_del (server *serv, char *nick, char *extensions,

3
src/common/proto-irc.c
View File

@ -957,6 +957,7 @@ process_numeric (session * sess, int n,
EMIT_SIGNAL_TIMESTAMP (XP_TE_SASLRESPONSE, serv->server_session, word[1],
word[2], word[3], ++word_eol[4], 0,
tags_data->timestamp);
serv->waiting_on_sasl = FALSE;
if (!serv->sent_capend)
{
serv->sent_capend = TRUE;
@ -1330,7 +1331,7 @@ process_named_msg (session *sess, char *type, char *word[], char *word_eol[],
}
else if (strncasecmp (word[4], "NAK", 3) == 0)
{
inbound_cap_nak (serv, tags_data);
inbound_cap_nak (serv, word[5][0] == ':' ? word_eol[5] + 1 : word_eol[5], tags_data);
}
else if (strncasecmp (word[4], "LIST", 4) == 0)
{