*
* Copyright (C) 2005 Lee Hardy <lee@leeh.co.uk>
* Copyright (C) 2005 ircd-ratbox development team
- * Copyright (C) 2016 William Pitcock <nenolod@dereferenced.org>
+ * Copyright (C) 2016 Ariadne Conill <ariadne@dereferenced.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
#include "s_conf.h"
#include "hash.h"
+static const char cap_desc[] = "Provides the commands used for client capability negotiation";
+
typedef int (*bqcmp)(const void *, const void *);
-static int m_cap(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
+static void m_cap(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
struct Message cap_msgtab = {
"CAP", 0, 0, 0, 0,
mapi_clist_av1 cap_clist[] = { &cap_msgtab, NULL };
-static const char cap_desc[] = "Provides the commands used for client capability negotiation";
-
DECLARE_MODULE_AV2(cap, NULL, NULL, cap_clist, NULL, NULL, NULL, NULL, cap_desc);
#define IsCapableEntry(c, e) IsCapable(c, 1 << (e)->value)
* Generates a list of capabilities.
*
* Inputs: client to send to, subcmd to send,
- * flags to match against: 0 to do none, -1 if client has no flags,
- * int to whether we are doing CAP CLEAR
+ * flags to match against: 0 to do none, -1 if client has no flags
* Outputs: None
*/
static void
-clicap_generate(struct Client *source_p, const char *subcmd, int flags, int clear)
+clicap_generate(struct Client *source_p, const char *subcmd, int flags)
{
- char buf[BUFSIZE] = { 0 };
- char capbuf[BUFSIZE] = { 0 };
- int buflen = 0;
- int curlen, mlen;
+ const char *str_cont = "* :";
+ const char *str_final = ":";
struct CapabilityEntry *entry;
- struct DictionaryIter iter;
+ rb_dictionary_iter iter;
+ bool multiline_ret;
+ enum multiline_item_result multiline_item_ret;
- mlen = snprintf(buf, sizeof buf, ":%s CAP %s %s",
+ multiline_ret = send_multiline_init(source_p, " ", ":%s CAP %s %s %s",
me.name,
EmptyString(source_p->name) ? "*" : source_p->name,
- subcmd);
+ subcmd,
+ (source_p->flags & FLAGS_CLICAP_DATA) ? str_cont : str_final);
/* shortcut, nothing to do */
- if(flags == -1)
- {
- sendto_one(source_p, "%s :", buf);
+ if (flags == -1 || !multiline_ret) {
+ sendto_one(source_p, ":%s CAP %s %s %s",
+ me.name,
+ EmptyString(source_p->name) ? "*" : source_p->name,
+ subcmd,
+ str_final);
return;
}
- DICTIONARY_FOREACH(entry, &iter, cli_capindex->cap_dict)
- {
- size_t caplen = 0;
+ for (int pass = 0; pass < 2; pass++)
+ RB_DICTIONARY_FOREACH(entry, &iter, cli_capindex->cap_dict) {
struct ClientCapability *clicap = entry->ownerdata;
const char *data = NULL;
- if(flags)
+ if (pass == 0 && !HasCapabilityFlag(entry, CLICAP_FLAGS_PRIORITY))
+ continue;
+ else if (pass == 1 && HasCapabilityFlag(entry, CLICAP_FLAGS_PRIORITY))
+ continue;
+
+ if (!IsCapableEntry(source_p, entry) && ConfigFileEntry.hidden_caps != NULL)
{
- if(!IsCapableEntry(source_p, entry))
- continue;
- /* they are capable of this, check sticky */
- else if(clear && HasCapabilityFlag(entry, CLICAP_FLAGS_STICKY))
+ size_t i;
+ for (i = 0; ConfigFileEntry.hidden_caps[i] != NULL; i++)
+ {
+ if (!rb_strcasecmp(entry->cap, ConfigFileEntry.hidden_caps[i]))
+ break;
+ }
+ if (ConfigFileEntry.hidden_caps[i] != NULL)
continue;
}
- if (!clicap_visible(source_p, entry))
+ if (flags && !IsCapableEntry(source_p, entry))
continue;
- caplen = strlen(entry->cap);
- if (!flags && (source_p->flags & FLAGS_CLICAP_DATA) && clicap != NULL && clicap->data != NULL)
- data = clicap->data(source_p);
+ if (!clicap_visible(source_p, entry))
+ continue;
- if (data != NULL)
- caplen += strlen(data) + 1;
+ if (source_p->flags & FLAGS_CLICAP_DATA) {
+ if (!flags && clicap != NULL && clicap->data != NULL)
+ data = clicap->data(source_p);
- /* \r\n\0, possible "-~=", space, " *" */
- if(buflen + mlen >= BUFSIZE - 10)
- {
- /* remove our trailing space -- if buflen == mlen
- * here, we didnt even succeed in adding one.
- */
- capbuf[buflen] = '\0';
+ multiline_item_ret = send_multiline_item(source_p, "%s%s%s",
+ entry->cap,
+ data != NULL ? "=" : "",
+ data != NULL ? data : "");
- sendto_one(source_p, "%s * :%s", buf, capbuf);
+ if (multiline_item_ret == MULTILINE_FAILURE)
+ return;
+ } else {
+ multiline_item_ret = send_multiline_item(source_p, "%s", entry->cap);
- buflen = mlen;
- memset(capbuf, 0, sizeof capbuf);
+ if (multiline_item_ret != MULTILINE_SUCCESS) {
+ send_multiline_reset();
+ return;
+ }
}
-
- buflen = rb_snprintf_append(capbuf, sizeof capbuf, "%s%s%s%s ",
- clear ? "-" : "", entry->cap, data != NULL ? "=" : "", data != NULL ? data : "");
}
- /* remove trailing space */
- capbuf[buflen] = '\0';
-
- sendto_one(source_p, "%s :%s", buf, capbuf);
+ send_multiline_fini(source_p, ":%s CAP %s %s %s",
+ me.name,
+ EmptyString(source_p->name) ? "*" : source_p->name,
+ subcmd,
+ str_final);
}
static void
source_p->localClient->caps &= ~capdel;
}
-static void
-cap_clear(struct Client *source_p, const char *arg)
-{
- clicap_generate(source_p, "ACK",
- source_p->localClient->caps ? source_p->localClient->caps : -1, 1);
-
- source_p->localClient->caps = 0;
-}
-
static void
cap_end(struct Client *source_p, const char *arg)
{
{
/* list of what theyre currently using */
clicap_generate(source_p, "LIST",
- source_p->localClient->caps ? source_p->localClient->caps : -1, 0);
+ source_p->localClient->caps ? source_p->localClient->caps : -1);
}
static void
cap_ls(struct Client *source_p, const char *arg)
{
+ int caps_version = 301;
+
if(!IsRegistered(source_p))
source_p->flags |= FLAGS_CLICAP;
- if (arg != NULL && !strcmp(arg, "302"))
- {
+ if (!EmptyString(arg)) {
+ caps_version = atoi(arg);
+ }
+
+ if (caps_version >= 302) {
source_p->flags |= FLAGS_CLICAP_DATA;
source_p->localClient->caps |= CLICAP_CAP_NOTIFY;
}
/* list of what we support */
- clicap_generate(source_p, "LS", 0, 0);
+ clicap_generate(source_p, "LS", 0);
}
static void
cap_req(struct Client *source_p, const char *arg)
{
- char buf[BUFSIZE];
- char pbuf[2][BUFSIZE];
+ char ack_buf[DATALEN+1];
struct CapabilityEntry *cap;
- int buflen, plen;
- int i = 0;
int capadd = 0, capdel = 0;
int finished = 0, negate;
+ int ret;
+ hook_data_cap_change hdata;
if(!IsRegistered(source_p))
source_p->flags |= FLAGS_CLICAP;
if(EmptyString(arg))
return;
- buflen = snprintf(buf, sizeof(buf), ":%s CAP %s ACK",
- me.name, EmptyString(source_p->name) ? "*" : source_p->name);
+ ret = snprintf(ack_buf, sizeof ack_buf, ":%s CAP %s ACK :%s",
+ me.name, EmptyString(source_p->name)? "*" : source_p->name, arg);
- pbuf[0][0] = '\0';
- plen = 0;
+ if (ret < 0 || ret > DATALEN)
+ {
+ sendto_one(source_p, ":%s CAP %s NAK :%s",
+ me.name, EmptyString(source_p->name) ? "*" : source_p->name, arg);
+ return;
+ }
for(cap = clicap_find(arg, &negate, &finished); cap;
cap = clicap_find(NULL, &negate, &finished))
{
- size_t namelen = strlen(cap->cap);
-
- /* filled the first array, but cant send it in case the
- * request fails. one REQ should never fill more than two
- * buffers --fl
- */
- if(buflen + plen + namelen + 6 >= BUFSIZE)
- {
- pbuf[1][0] = '\0';
- plen = 0;
- i = 1;
- }
-
if(negate)
{
if(HasCapabilityFlag(cap, CLICAP_FLAGS_STICKY))
break;
}
- strcat(pbuf[i], "-");
- plen++;
-
capdel |= (1 << cap->value);
}
else
capadd |= (1 << cap->value);
}
- /* XXX this probably should exclude REQACK'd caps from capadd/capdel, but keep old behaviour for now */
- if(HasCapabilityFlag(cap, CLICAP_FLAGS_REQACK))
- {
- strcat(pbuf[i], "~");
- plen++;
- }
-
- strcat(pbuf[i], cap->cap);
- if (!finished) {
- strcat(pbuf[i], " ");
- plen += (namelen + 1);
- }
}
if(!finished)
return;
}
- if(i)
- {
- sendto_one(source_p, "%s * :%s", buf, pbuf[0]);
- sendto_one(source_p, "%s :%s", buf, pbuf[1]);
- }
- else
- sendto_one(source_p, "%s :%s", buf, pbuf[0]);
+ sendto_one(source_p, "%s", ack_buf);
+
+ hdata.client = source_p;
+ hdata.oldcaps = source_p->localClient->caps;
+ hdata.add = capadd;
+ hdata.del = capdel;
source_p->localClient->caps |= capadd;
source_p->localClient->caps &= ~capdel;
+
+ call_hook(h_cap_change, &hdata);
}
static struct clicap_cmd
} clicap_cmdlist[] = {
/* This list *MUST* be in alphabetical order */
{ "ACK", cap_ack },
- { "CLEAR", cap_clear },
{ "END", cap_end },
{ "LIST", cap_list },
{ "LS", cap_ls },
return irccmp(command, entry->cmd);
}
-static int
+static void
m_cap(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
struct clicap_cmd *cmd;
sendto_one(source_p, form_str(ERR_INVALIDCAPCMD),
me.name, EmptyString(source_p->name) ? "*" : source_p->name,
parv[1]);
- return 0;
+ return;
}
(cmd->func)(source_p, parv[2]);
- return 0;
}
projects / solanum.git / blobdiff