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fteqw/plugins/jabber/sift.c
Spoike b63dc8b880 prepare for proper binary auth instead of depending upon tls certs (using sha2(512) to ensure no modification). probably buggy on windows so not fully enabled yet. 
allow for binary updates on linux as on windows (-allowupdate for modified/nonsvn builds).
dlightmask is now size_t, because we might as well allow that on 64bit cpus, this allows for 64 lightmaphack lights instead of 32.
fix potential openal issue with source=0.
added q3bsp_ignorestyles cvar to ignore rbsp styles (and reduce needed batch counts), should only be used on maps with subtle lighting changes (ones that are properly lit without toggling any lightswitches).
add support for directly loading foo.bsp.gz
Added prints to clarify why servers might be listed under the 'UNKNOWN' category in the master server. Attempt to show hostnames anyway, to make it a little more obvious who's responsible for those badly configured servers.



git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5656 fc73d0e0-1445-4013-8a0c-d673dee63da5
2020-03-25 21:29:30 +00:00

610 lines
18 KiB
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#include "xmpp.h"
#ifdef FILETRANSFERS
void XMPP_FT_Frame(jclient_t *jcl)
{
static char *hex = "0123456789abcdef";
char digest[20];
char domain[sizeof(digest)*2+1];
int j;
char *req;
struct ft_s *ft;
for (ft = jcl->ft; ft; ft = ft->next)
{
if (ft->streamstatus == STRM_IDLE)
continue;
if (ft->stream < 0)
{
if (ft->nexthost > 0)
{
ft->nexthost--;
ft->stream = netfuncs->TCPConnect(ft->streamhosts[ft->nexthost].host, ft->streamhosts[ft->nexthost].port);
if (ft->stream == -1)
continue;
ft->streamstatus = STRM_AUTH;
//'authenticate' with socks5 proxy. tell it that we only support 'authless'.
netfuncs->Send(ft->stream, "\x05\x01\x00", 3);
}
else
{
JCL_AddClientMessagef(jcl,
"<iq id='%s' to='%s' type='error'>"
"<error type='cancel'>"
"<item-not-found xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'/>"
"</error>"
"</iq>", ft->iqid, ft->with);
ft->streamstatus = STRM_IDLE;
}
continue;
}
else
{
char data[8192];
int len;
if (ft->streamstatus == STRM_ACTIVE)
{
len = netfuncs->Recv(ft->stream, data, sizeof(data)-1);
if (len > 0)
filefuncs->Write(ft->file, data, len);
}
else
{
len = netfuncs->Recv(ft->stream, data, sizeof(data)-1);
if (len > 0)
{
if (ft->streamstatus == STRM_AUTH)
{
if (len == 2 && data[0] == 0x05 && data[1] == 0x00)
{
//server has accepted us, woo.
//sid+requester(them)+target(us)
req = va("%s%s%s", ft->sid, ft->with, jcl->fulljid);
CalcHash(&hash_sha1, digest, sizeof(digest), req, strlen(req));
//in hex
for (req = domain, j=0; j < 20; j++)
{
*req++ = hex[(digest[j]>>4) & 0xf];
*req++ = hex[(digest[j]>>0) & 0xf];
}
*req = 0;
//connect with hostname(3).
req = va("\x05\x01%c\x03""%c%s%c%c", 0, (int)strlen(domain), domain, 0, 0);
netfuncs->Send(ft->stream, req, strlen(domain)+7);
ft->streamstatus = STRM_AUTHED;
}
else
len = -1;
}
else if (ft->streamstatus == STRM_AUTHED)
{
if (data[0] == 0x05 && data[1] == 0x00)
{
if (filefuncs->Open(ft->fname, &ft->file, 2) < 0)
{
len = -1;
JCL_AddClientMessagef(jcl, "<iq id='%s' to='%s' type='error'/>", ft->iqid, ft->with);
}
else
{
ft->streamstatus = STRM_ACTIVE;
JCL_AddClientMessagef(jcl,
"<iq id='%s' to='%s' type='result'>"
"<query xmlns='http://jabber.org/protocol/bytestreams' sid='%s'>"
"<streamhost-used jid='%s'/>"
"</query>"
"</iq>", ft->iqid, ft->with, ft->sid, ft->streamhosts[ft->nexthost].jid);
}
}
else
len = -1; //err, this is someone else...
}
}
}
if (len == -1)
{
netfuncs->Close(ft->stream);
ft->stream = -1;
if (ft->streamstatus == STRM_ACTIVE)
{
int size;
if (ft->file != -1)
filefuncs->Close(ft->file);
ft->file = -1;
size = filefuncs->Open(ft->fname, &ft->file, 1);
if (ft->file != -1)
filefuncs->Close(ft->file);
if (size == ft->size)
{
Con_Printf("File Transfer Completed\n");
continue;
}
else
{
Con_Printf("File Transfer Aborted by peer\n");
continue;
}
}
Con_Printf("File Transfer connection to %s:%i failed\n", ft->streamhosts[ft->nexthost].host, ft->streamhosts[ft->nexthost].port);
}
}
}
}
void XMPP_FT_AcceptFile(jclient_t *jcl, int fileid, qboolean accept)
{
struct ft_s *ft, **link;
char *s;
xmltree_t *repiq, *repsi, *c;
for (link = &jcl->ft; (ft=*link); link = &(*link)->next)
{
if (ft->privateid == fileid)
break;
}
if (!ft)
{
Con_Printf("File not known\n");
return;
}
if (!accept)
{
Con_Printf("Declining file \"%s\" from \"%s\" (%i bytes)\n", ft->fname, ft->with, ft->size);
if (!ft->allowed)
{
JCL_AddClientMessagef(jcl,
"<iq type='error' to='%s' id='%s'>"
"<error type='cancel'>"
"<forbidden xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'/>"
"<text>Offer Declined</text>"
"</error>"
"</iq>", ft->with, ft->iqid);
}
else
{
//FIXME: send a proper cancel
}
if (ft->file != -1)
filefuncs->Close(ft->file);
*link = ft->next;
free(ft);
}
else
{
Con_Printf("Receiving file \"%s\" from \"%s\" (%i bytes)\n", ft->fname, ft->with, ft->size);
ft->allowed = true;
//generate a response.
//FIXME: we ought to delay response until after we prompt.
repiq = XML_CreateNode(NULL, "iq", "", "");
XML_AddParameter(repiq, "type", "result");
XML_AddParameter(repiq, "to", ft->with);
XML_AddParameter(repiq, "id", ft->iqid);
repsi = XML_CreateNode(repiq, "si", "http://jabber.org/protocol/si", "");
XML_CreateNode(repsi, "file", "http://jabber.org/protocol/si/profile/file-transfer", ""); //I don't really get the point of this.
c = XML_CreateNode(repsi, "feature", "http://jabber.org/protocol/feature-neg", "");
c = XML_CreateNode(c, "x", "jabber:x:data", "");
XML_AddParameter(c, "type", "submit");
c = XML_CreateNode(c, "field", "", "");
XML_AddParameter(c, "var", "stream-method");
if (ft->method == FT_IBB)
c = XML_CreateNode(c, "value", "", "http://jabber.org/protocol/ibb");
else if (ft->method == FT_BYTESTREAM)
c = XML_CreateNode(c, "value", "", "http://jabber.org/protocol/bytestreams");
s = XML_GenerateString(repiq, false);
JCL_AddClientMessageString(jcl, s);
free(s);
XML_Destroy(repiq);
}
}
static qboolean XMPP_FT_IBBChunked(jclient_t *jcl, xmltree_t *x, struct iq_s *iq)
{
const char *from = XML_GetParameter(x, "from", jcl->domain);
struct ft_s *ft = iq->usrptr, **link, *v;
for (link = &jcl->ft; (v=*link); link = &(*link)->next)
{
if (v == ft && !strcmp(ft->with, from))
{
//its still valid
if (x)
{
char *base64;
char rawbuf[4096];
int sz;
sz = filefuncs->Read(ft->file, rawbuf, ft->blocksize);
Base64_Add(rawbuf, sz);
base64 = Base64_Finish();
if (sz > 0)
{
ft->sizedone += sz;
if (ft->sizedone == ft->size)
ft->eof = true;
}
if (sz && strlen(base64))
{
x = XML_CreateNode(NULL, "data", "http://jabber.org/protocol/ibb", base64);
XML_AddParameteri(x, "seq", ft->seq++);
XML_AddParameter(x, "sid", ft->sid);
JCL_SendIQNode(jcl, XMPP_FT_IBBChunked, "set", from, x, true)->usrptr = ft;
return true;
}
//else eof
}
//errored or ended
if (x)
Con_Printf("Transfer of %s to %s completed\n", ft->fname, ft->with);
else
Con_Printf("%s aborted %s\n", ft->with, ft->fname);
x = XML_CreateNode(NULL, "close", "http://jabber.org/protocol/ibb", "");
XML_AddParameter(x, "sid", ft->sid);
JCL_SendIQNode(jcl, NULL, "set", from, x, true)->usrptr = ft;
//errored
if (ft->file != -1)
filefuncs->Close(ft->file);
*link = ft->next;
free(ft);
return true;
}
}
return true; //the ack can come after the bytestream has already finished sending. don't warn about that.
}
static qboolean XMPP_FT_IBBBegun(jclient_t *jcl, xmltree_t *x, struct iq_s *iq)
{
struct ft_s *ft = iq->usrptr, **link, *v;
const char *from = XML_GetParameter(x, "from", jcl->domain);
for (link = &jcl->ft; (v=*link); link = &(*link)->next)
{
if (v == ft && !strcmp(ft->with, from))
{
//its still valid
if (!x)
{
Con_Printf("%s aborted %s\n", ft->with, ft->fname);
//errored
if (ft->file != -1)
filefuncs->Close(ft->file);
*link = ft->next;
free(ft);
}
else
{
ft->begun = true;
ft->method = FT_IBB;
XMPP_FT_IBBChunked(jcl, x, iq);
}
return true;
}
}
return false;
}
qboolean XMPP_FT_OfferAcked(jclient_t *jcl, xmltree_t *x, struct iq_s *iq)
{
struct ft_s *ft = iq->usrptr, **link, *v;
const char *from = XML_GetParameter(x, "from", jcl->domain);
for (link = &jcl->ft; (v=*link); link = &(*link)->next)
{
if (v == ft && !strcmp(ft->with, from))
{
//its still valid
if (!x)
{
Con_Printf("%s doesn't want %s\n", ft->with, ft->fname);
//errored
if (ft->file != -1)
filefuncs->Close(ft->file);
*link = ft->next;
free(ft);
}
else
{
xmltree_t *xo;
Con_Printf("%s accepted %s\n", ft->with, ft->fname);
xo = XML_CreateNode(NULL, "open", "http://jabber.org/protocol/ibb", "");
XML_AddParameter(xo, "sid", ft->sid);
XML_AddParameteri(xo, "block-size", ft->blocksize);
//XML_AddParameter(xo, "stanza", "iq");
JCL_SendIQNode(jcl, XMPP_FT_IBBBegun, "set", XML_GetParameter(x, "from", jcl->domain), xo, true)->usrptr = ft;
}
return true;
}
}
return false;
}
void XMPP_FT_SendFile(jclient_t *jcl, const char *console, const char *to, const char *fname)
{
xmltree_t *xsi, *xfile, *c;
struct ft_s *ft;
Con_SubPrintf(console, "Offering %s to %s.\n", fname, to);
ft = malloc(sizeof(*ft));
memset(ft, 0, sizeof(*ft));
ft->stream = -1;
ft->allowed = true;
ft->transmitting = true;
ft->blocksize = 4096;
Q_strlcpy(ft->fname, fname, sizeof(ft->fname));
if (Q_snprintf(ft->sid, sizeof(ft->sid), "%x%s", rand(), ft->fname) >= sizeof(ft->sid))
/*doesn't matter so long as its unique*/;
Q_strlcpy(ft->md5hash, "", sizeof(ft->md5hash));
ft->size = filefuncs->Open(ft->fname, &ft->file, 1);
ft->with = strdup(to);
ft->method = FT_IBB;
ft->begun = false;
ft->next = jcl->ft;
jcl->ft = ft;
//generate an offer.
xsi = XML_CreateNode(NULL, "si", "http://jabber.org/protocol/si", "");
XML_AddParameter(xsi, "profile", "http://jabber.org/protocol/si/profile/file-transfer");
XML_AddParameter(xsi, "id", ft->sid);
//XML_AddParameter(xsi, "mime-type", "text/plain");
xfile = XML_CreateNode(xsi, "file", "http://jabber.org/protocol/si/profile/file-transfer", ""); //I don't really get the point of this.
XML_AddParameter(xfile, "name", ft->fname);
XML_AddParameteri(xfile, "size", ft->size);
c = XML_CreateNode(xsi, "feature", "http://jabber.org/protocol/feature-neg", "");
c = XML_CreateNode(c, "x", "jabber:x:data", "");
XML_AddParameter(c, "type", "form");
c = XML_CreateNode(c, "field", "", "");
XML_AddParameter(c, "var", "stream-method");
XML_AddParameter(c, "type", "listsingle");
XML_CreateNode(XML_CreateNode(c, "option", "", ""), "value", "", "http://jabber.org/protocol/ibb");
// XML_CreateNode(XML_CreateNode(c, "option", "", ""), "value", "", "http://jabber.org/protocol/bytestreams");
JCL_SendIQNode(jcl, XMPP_FT_OfferAcked, "set", to, xsi, true)->usrptr = ft;
}
qboolean XMPP_FT_ParseIQSet(jclient_t *jcl, const char *iqfrom, const char *iqid, xmltree_t *tree)
{
xmltree_t *ot;
//if file transfers are not enabled in this build, reject all iqs
if (!(jcl->enabledcapabilities & CAP_SIFT))
return false;
ot = XML_ChildOfTreeNS(tree, "http://jabber.org/protocol/bytestreams", "query", 0);
if (ot)
{
xmltree_t *c;
struct ft_s *ft;
const char *sid = XML_GetParameter(ot, "sid", "");
for (ft = jcl->ft; ft; ft = ft->next)
{
if (!strcmp(ft->sid, sid) && !strcmp(ft->with, iqfrom))
{
if (ft->allowed && !ft->begun && ft->transmitting == false)
{
const char *jid;
const char *host;
int port;
const char *mode = XML_GetParameter(ot, "mode", "tcp");
int i;
if (strcmp(mode, "tcp"))
break;
for (i = 0; ; i++)
{
c = XML_ChildOfTree(ot, "streamhost", i);
if (!c)
break;
jid = XML_GetParameter(c, "jid", "");
host = XML_GetParameter(c, "host", "");
port = atoi(XML_GetParameter(c, "port", "0"));
if (port <= 0 || port > 65535)
continue;
if (ft->nexthost < sizeof(ft->streamhosts) / sizeof(ft->streamhosts[ft->nexthost]))
{
Q_strlcpy(ft->streamhosts[ft->nexthost].jid, jid, sizeof(ft->streamhosts[ft->nexthost].jid));
Q_strlcpy(ft->streamhosts[ft->nexthost].host, host, sizeof(ft->streamhosts[ft->nexthost].host));
ft->streamhosts[ft->nexthost].port = port;
ft->nexthost++;
}
}
ft->streamstatus = STRM_AUTH;
//iq gets acked when we finished connecting to the proxy. *then* the data can flow
Q_strlcpy(ft->iqid, iqid, sizeof(ft->iqid));
return true;
}
}
}
JCL_AddClientMessagef(jcl, "<iq id='%s' to='%s' type='error'/>", iqid, iqfrom);
return true;
}
ot = XML_ChildOfTreeNS(tree, "http://jabber.org/protocol/ibb", "open", 0);
if (ot)
{
struct ft_s *ft;
const char *sid = XML_GetParameter(ot, "sid", "");
int blocksize = atoi(XML_GetParameter(ot, "block-size", "4096")); //technically this is required.
const char *stanza = XML_GetParameter(ot, "stanza", "iq");
for (ft = jcl->ft; ft; ft = ft->next)
{
if (!strcmp(ft->sid, sid) && !strcmp(ft->with, iqfrom))
{
if (ft->allowed && !ft->begun && ft->transmitting == false)
{
if (blocksize > 65536 || strcmp(stanza, "iq"))
{ //blocksize: MUST NOT be greater than 65535
JCL_AddClientMessagef(jcl,
"<iq id='%s' to='%s' type='error'>"
"<error type='modify'>"
"<not-acceptable xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'/>"
"</error>"
"</iq>"
, iqid, iqfrom);
}
else if (blocksize > 4096)
{ //ask for smaller chunks
JCL_AddClientMessagef(jcl,
"<iq id='%s' to='%s' type='error'>"
"<error type='modify'>"
"<resource-constraint xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'/>"
"</error>"
"</iq>"
, iqid, iqfrom);
}
else
{ //it looks okay
filefuncs->Open(ft->fname, &ft->file, 2);
ft->method = FT_IBB;
ft->blocksize = blocksize;
ft->begun = true;
//if its okay...
JCL_AddClientMessagef(jcl, "<iq id='%s' to='%s' type='result'/>", iqid, iqfrom);
}
break;
}
}
}
return false;
}
ot = XML_ChildOfTreeNS(tree, "http://jabber.org/protocol/ibb", "close", 0);
if (ot)
{
struct ft_s **link, *ft;
const char *sid = XML_GetParameter(ot, "sid", "");
for (link = &jcl->ft; *link; link = &(*link)->next)
{
ft = *link;
if (!strcmp(ft->sid, sid) && !strcmp(ft->with, iqfrom))
{
if (ft->begun && ft->method == FT_IBB)
{
int size;
if (ft->file != -1)
filefuncs->Close(ft->file);
if (ft->transmitting)
{
if (ft->eof)
Con_Printf("Sent \"%s\" to \"%s\"\n", ft->fname, ft->with);
else
Con_Printf("%s aborted transfer of \"%s\"\n", iqfrom, ft->fname);
}
else
{
size = filefuncs->Open(ft->fname, &ft->file, 1);
if (ft->file != -1)
filefuncs->Close(ft->file);
if (size == ft->size)
Con_Printf("Received file \"%s\" successfully\n", ft->fname);
else
Con_Printf("%s aborted transfer of \"%s\"\n", iqfrom, ft->fname);
}
*link = ft->next;
free(ft);
//if its okay...
JCL_AddClientMessagef(jcl, "<iq id='%s' to='%s' type='result'/>", iqid, iqfrom);
return true;
}
}
}
return false; //some kind of error
}
ot = XML_ChildOfTreeNS(tree, "http://jabber.org/protocol/ibb", "data", 0);
if (ot)
{
char block[65536];
const char *sid = XML_GetParameter(ot, "sid", "");
// unsigned short seq = atoi(XML_GetParameter(ot, "seq", "0"));
int blocksize;
struct ft_s *ft;
//FIXME: validate the sequence!
for (ft = jcl->ft; ft; ft = ft->next)
{
if (!strcmp(ft->sid, sid) && !ft->transmitting)
{
blocksize = Base64_Decode(block, sizeof(block), ot->body, strlen(ot->body));
if (blocksize && blocksize <= ft->blocksize)
{
filefuncs->Write(ft->file, block, blocksize);
JCL_AddClientMessagef(jcl, "<iq id='%s' to='%s' type='result'/>", iqid, iqfrom);
return true;
}
else
Con_Printf("XMPP: Invalid blocksize in file transfer from %s\n", iqfrom);
break;
}
}
return true;
}
ot = XML_ChildOfTreeNS(tree, "http://jabber.org/protocol/si", "si", 0);
if (ot)
{
const char *profile = XML_GetParameter(ot, "profile", "");
if (!strcmp(profile, "http://jabber.org/protocol/si/profile/file-transfer"))
{
// char *mimetype = XML_GetParameter(ot, "mime-type", "text/plain");
const char *sid = XML_GetParameter(ot, "id", "");
xmltree_t *file = XML_ChildOfTreeNS(ot, "http://jabber.org/protocol/si/profile/file-transfer", "file", 0);
const char *fname = XML_GetParameter(file, "name", "file.txt");
// char *date = XML_GetParameter(file, "date", "");
const char *md5hash = XML_GetParameter(file, "hash", "");
int fsize = strtoul(XML_GetParameter(file, "size", "0"), NULL, 0);
// char *desc = XML_GetChildBody(file, "desc", "");
char authlink[512];
char denylink[512];
//file transfer offer
struct ft_s *ft = malloc(sizeof(*ft) + strlen(iqfrom)+1);
memset(ft, 0, sizeof(*ft));
ft->stream = -1;
ft->next = jcl->ft;
jcl->ft = ft;
ft->privateid = ++jcl->privateidseq;
ft->transmitting = false;
Q_strlcpy(ft->iqid, iqid, sizeof(ft->iqid));
Q_strlcpy(ft->sid, sid, sizeof(ft->sid));
Q_strlcpy(ft->fname, fname, sizeof(ft->sid));
Base64_Decode(ft->md5hash, sizeof(ft->md5hash), md5hash, strlen(md5hash));
ft->size = fsize;
ft->file = -1;
ft->with = (char*)(ft+1);
strcpy(ft->with, iqfrom);
ft->method = (fsize > 1024*128)?FT_BYTESTREAM:FT_IBB; //favour bytestreams for large files. for small files, just use ibb as it saves sorting out proxies.
ft->begun = false;
JCL_GenLink(jcl, authlink, sizeof(authlink), "fauth", iqfrom, NULL, va("%i", ft->privateid), "%s", "Accept");
JCL_GenLink(jcl, denylink, sizeof(denylink), "fdeny", iqfrom, NULL, va("%i", ft->privateid), "%s", "Deny");
Con_Printf("%s has offered to send you \"%s\" (%i bytes). %s %s\n", iqfrom, fname, fsize, authlink, denylink);
}
else
{
//profile not understood
JCL_AddClientMessagef(jcl,
"<iq type='error' to='%s' id='%s'>"
"<error code='400' type='cancel'>"
"<bad-request xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'/>"
"<bad-profile xmlns='http://jabber.org/protocol/si'/>"
"</error>"
"</iq>", iqfrom, iqid);
}
return true;
}
return false;
}
#endif
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