2 * This module handles shared rooms, inter-Citadel mail, and outbound
3 * mailing list processing.
5 * Copyright (c) 2000-2012 by the citadel.org team
7 * This program is open source software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 3 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 * ** NOTE ** A word on the S_NETCONFIGS semaphore:
22 * This is a fairly high-level type of critical section. It ensures that no
23 * two threads work on the netconfigs files at the same time. Since we do
24 * so many things inside these, here are the rules:
25 * 1. begin_critical_section(S_NETCONFIGS) *before* begin_ any others.
26 * 2. Do *not* perform any I/O with the client during these sections.
41 #include <sys/types.h>
43 #if TIME_WITH_SYS_TIME
44 # include <sys/time.h>
48 # include <sys/time.h>
56 # if HAVE_SYS_SYSCALL_H
57 # include <sys/syscall.h>
64 #include <libcitadel.h>
67 #include "citserver.h"
73 #include "internet_addressing.h"
74 #include "serv_network.h"
75 #include "clientsocket.h"
77 #include "citadel_dirs.h"
86 #include "netconfig.h"
87 #include "ctdl_module.h"
89 struct CitContext networker_client_CC;
91 #define NODE ChrPtr(((AsyncNetworker*)IO->Data)->node)
92 #define N ((AsyncNetworker*)IO->Data)->n
94 int NetworkClientDebugEnabled = 0;
96 #define NCDBGLOG(LEVEL) if ((LEVEL != LOG_DEBUG) || (NetworkClientDebugEnabled != 0))
98 #define EVN_syslog(LEVEL, FORMAT, ...) \
99 NCDBGLOG(LEVEL) syslog(LEVEL, \
100 "IO[%ld]CC[%d]NW[%s][%ld]" FORMAT, \
101 IO->ID, CCID, NODE, N, __VA_ARGS__)
103 #define EVNM_syslog(LEVEL, FORMAT) \
104 NCDBGLOG(LEVEL) syslog(LEVEL, \
105 "IO[%ld]CC[%d]NW[%s][%ld]" FORMAT, \
106 IO->ID, CCID, NODE, N)
108 #define EVNCS_syslog(LEVEL, FORMAT, ...) \
109 NCDBGLOG(LEVEL) syslog(LEVEL, "IO[%ld]NW[%s][%ld]" FORMAT, \
110 IO->ID, NODE, N, __VA_ARGS__)
112 #define EVNCSM_syslog(LEVEL, FORMAT) \
113 NCDBGLOG(LEVEL) syslog(LEVEL, "IO[%ld]NW[%s][%ld]" FORMAT, \
117 typedef enum _eNWCState {
132 typedef struct _async_networker {
134 DNSQueryParts HostLookup;
137 StrBuf *SpoolFileName;
138 StrBuf *tempFileName;
146 typedef eNextState(*NWClientHandler)(AsyncNetworker* NW);
147 eNextState nwc_get_one_host_ip(AsyncIO *IO);
149 eNextState nwc_connect_ip(AsyncIO *IO);
151 eNextState NWC_SendQUIT(AsyncNetworker *NW);
152 eNextState NWC_DispatchWriteDone(AsyncIO *IO);
154 void DeleteNetworker(void *vptr)
156 AsyncNetworker *NW = (AsyncNetworker *)vptr;
157 FreeStrBuf(&NW->SpoolFileName);
158 FreeStrBuf(&NW->tempFileName);
159 FreeStrBuf(&NW->node);
160 FreeStrBuf(&NW->host);
161 FreeStrBuf(&NW->port);
162 FreeStrBuf(&NW->secret);
163 FreeStrBuf(&NW->Url);
164 FreeStrBuf(&NW->IO.ErrMsg);
165 FreeAsyncIOContents(&NW->IO);
166 if (NW->HostLookup.VParsedDNSReply != NULL) {
167 NW->HostLookup.DNSReplyFree(NW->HostLookup.VParsedDNSReply);
168 NW->HostLookup.VParsedDNSReply = NULL;
173 #define NWC_DBG_SEND() EVN_syslog(LOG_DEBUG, ": > %s", ChrPtr(NW->IO.SendBuf.Buf))
174 #define NWC_DBG_READ() EVN_syslog(LOG_DEBUG, ": < %s\n", ChrPtr(NW->IO.IOBuf))
175 #define NWC_OK (strncasecmp(ChrPtr(NW->IO.IOBuf), "+OK", 3) == 0)
177 eNextState FinalizeNetworker(AsyncIO *IO)
179 AsyncNetworker *NW = (AsyncNetworker *)IO->Data;
181 network_talking_to(SKEY(NW->node), NTT_REMOVE);
183 DeleteNetworker(IO->Data);
187 eNextState NWC_ReadGreeting(AsyncNetworker *NW)
189 char connected_to[SIZ];
190 AsyncIO *IO = &NW->IO;
192 /* Read the server greeting */
193 /* Check that the remote is who we think it is and warn the Aide if not */
194 extract_token (connected_to, ChrPtr(NW->IO.IOBuf), 1, ' ', sizeof connected_to);
195 if (strcmp(connected_to, ChrPtr(NW->node)) != 0)
197 if (NW->IO.ErrMsg == NULL)
198 NW->IO.ErrMsg = NewStrBuf();
199 StrBufPrintf(NW->IO.ErrMsg,
200 "Connected to node \"%s\" but I was expecting to connect to node \"%s\".",
201 connected_to, ChrPtr(NW->node));
202 EVN_syslog(LOG_ERR, "%s\n", ChrPtr(NW->IO.ErrMsg));
203 CtdlAideMessage(ChrPtr(NW->IO.ErrMsg), "Network error");
204 return eAbort;/// todo: aide message in anderer queue speichern
209 eNextState NWC_SendAuth(AsyncNetworker *NW)
211 AsyncIO *IO = &NW->IO;
212 /* We're talking to the correct node. Now identify ourselves. */
213 StrBufPrintf(NW->IO.SendBuf.Buf, "NETP %s|%s\n",
220 eNextState NWC_ReadAuthReply(AsyncNetworker *NW)
222 AsyncIO *IO = &NW->IO;
224 if (ChrPtr(NW->IO.IOBuf)[0] == '2')
230 int Error = atol(ChrPtr(NW->IO.IOBuf));
231 if (NW->IO.ErrMsg == NULL)
232 NW->IO.ErrMsg = NewStrBuf();
233 StrBufPrintf(NW->IO.ErrMsg,
234 "Connected to node \"%s\" but my secret wasn't accurate.\nReason was:%s\n",
235 ChrPtr(NW->node), ChrPtr(NW->IO.IOBuf) + 4);
238 "Already talking to %s; skipping this time.\n",
243 EVN_syslog(LOG_ERR, "%s\n", ChrPtr(NW->IO.ErrMsg));
244 CtdlAideMessage(ChrPtr(NW->IO.ErrMsg), "Network error");
250 eNextState NWC_SendNDOP(AsyncNetworker *NW)
252 AsyncIO *IO = &NW->IO;
253 NW->tempFileName = NewStrBuf();
254 NW->SpoolFileName = NewStrBuf();
255 StrBufPrintf(NW->SpoolFileName,
259 time(NULL),// TODO: get time from libev
261 StrBufStripSlashes(NW->SpoolFileName, 1);
262 StrBufPrintf(NW->tempFileName,
266 time(NULL),// TODO: get time from libev
268 StrBufStripSlashes(NW->tempFileName, 1);
269 /* We're talking to the correct node. Now identify ourselves. */
270 StrBufPlain(NW->IO.SendBuf.Buf, HKEY("NDOP\n"));
275 eNextState NWC_ReadNDOPReply(AsyncNetworker *NW)
277 AsyncIO *IO = &NW->IO;
280 if (ChrPtr(NW->IO.IOBuf)[0] == '2')
283 NW->IO.IOB.TotalSentAlready = 0;
284 TotalSendSize = atol (ChrPtr(NW->IO.IOBuf) + 4);
285 EVN_syslog(LOG_DEBUG, "Expecting to transfer %d bytes\n", TotalSendSize);
286 if (TotalSendSize <= 0) {
287 NW->State = eNUOP - 1;
291 fd = open(ChrPtr(NW->tempFileName),
292 O_EXCL|O_CREAT|O_NONBLOCK|O_WRONLY,
297 "cannot open %s: %s\n",
298 ChrPtr(NW->tempFileName),
301 NW->State = eQUIT - 1;
304 FDIOBufferInit(&NW->IO.IOB, &NW->IO.RecvBuf, fd, TotalSendSize);
314 eNextState NWC_SendREAD(AsyncNetworker *NW)
316 AsyncIO *IO = &NW->IO;
319 if (NW->IO.IOB.TotalSentAlready < NW->IO.IOB.TotalSendSize)
322 * If shutting down we can exit here and unlink the temp file.
323 * this shouldn't loose us any messages.
325 if (server_shutting_down)
327 FDIOBufferDelete(&NW->IO.IOB);
328 unlink(ChrPtr(NW->tempFileName));
329 FDIOBufferDelete(&IO->IOB);
332 StrBufPrintf(NW->IO.SendBuf.Buf, "READ %ld|%ld\n",
333 NW->IO.IOB.TotalSentAlready,
334 NW->IO.IOB.TotalSendSize);
336 ((NW->IO.IOB.TotalSendSize - NW->IO.IOB.TotalSentAlready > IGNET_PACKET_SIZE)
337 ? IGNET_PACKET_SIZE :
338 (NW->IO.IOB.TotalSendSize - NW->IO.IOB.TotalSentAlready))
347 rc = NWC_DispatchWriteDone(&NW->IO);
354 eNextState NWC_ReadREADState(AsyncNetworker *NW)
356 AsyncIO *IO = &NW->IO;
358 if (ChrPtr(NW->IO.IOBuf)[0] == '6')
360 NW->IO.IOB.ChunkSendRemain =
361 NW->IO.IOB.ChunkSize = atol(ChrPtr(NW->IO.IOBuf)+4);
364 FDIOBufferDelete(&IO->IOB);
367 eNextState NWC_ReadREADBlobDone(AsyncNetworker *NW);
368 eNextState NWC_ReadREADBlob(AsyncNetworker *NW)
371 AsyncIO *IO = &NW->IO;
373 if (NW->IO.IOB.TotalSendSize == NW->IO.IOB.TotalSentAlready)
377 FDIOBufferDelete(&NW->IO.IOB);
379 if (link(ChrPtr(NW->tempFileName), ChrPtr(NW->SpoolFileName)) != 0) {
380 EVN_syslog(LOG_ALERT,
381 "Could not link %s to %s: %s\n",
382 ChrPtr(NW->tempFileName),
383 ChrPtr(NW->SpoolFileName),
387 unlink(ChrPtr(NW->tempFileName));
388 rc = NWC_DispatchWriteDone(&NW->IO);
394 NW->IO.IOB.ChunkSendRemain = NW->IO.IOB.ChunkSize;
395 return eSendReply; //NWC_DispatchWriteDone(&NW->IO);
399 eNextState NWC_ReadREADBlobDone(AsyncNetworker *NW)
402 AsyncIO *IO = &NW->IO;
403 /* we don't have any data to debug print here. */
404 if (NW->IO.IOB.TotalSentAlready >= NW->IO.IOB.TotalSendSize)
408 FDIOBufferDelete(&NW->IO.IOB);
409 if (link(ChrPtr(NW->tempFileName), ChrPtr(NW->SpoolFileName)) != 0) {
410 EVN_syslog(LOG_ALERT,
411 "Could not link %s to %s: %s\n",
412 ChrPtr(NW->tempFileName),
413 ChrPtr(NW->SpoolFileName),
417 unlink(ChrPtr(NW->tempFileName));
418 rc = NWC_DispatchWriteDone(&NW->IO);
424 NW->IO.IOB.ChunkSendRemain = NW->IO.IOB.ChunkSize;
425 return NWC_DispatchWriteDone(&NW->IO);
428 eNextState NWC_SendCLOS(AsyncNetworker *NW)
430 AsyncIO *IO = &NW->IO;
431 StrBufPlain(NW->IO.SendBuf.Buf, HKEY("CLOS\n"));
436 eNextState NWC_ReadCLOSReply(AsyncNetworker *NW)
438 AsyncIO *IO = &NW->IO;
440 FDIOBufferDelete(&IO->IOB);
441 if (ChrPtr(NW->IO.IOBuf)[0] != '2')
442 return eTerminateConnection;
447 eNextState NWC_SendNUOP(AsyncNetworker *NW)
449 AsyncIO *IO = &NW->IO;
455 StrBufPrintf(NW->SpoolFileName,
459 StrBufStripSlashes(NW->SpoolFileName, 1);
461 fd = open(ChrPtr(NW->SpoolFileName), O_EXCL|O_NONBLOCK|O_RDONLY);
463 if (errno != ENOENT) {
465 "cannot open %s: %s\n",
466 ChrPtr(NW->SpoolFileName),
470 rc = NWC_SendQUIT(NW);
475 if (fstat(fd, &statbuf) == -1) {
476 EVN_syslog(LOG_CRIT, "FSTAT FAILED %s [%s]--\n",
477 ChrPtr(NW->SpoolFileName),
479 if (fd > 0) close(fd);
482 TotalSendSize = statbuf.st_size;
483 if (TotalSendSize == 0) {
484 EVNM_syslog(LOG_DEBUG,
485 "Nothing to send.\n");
487 rc = NWC_SendQUIT(NW);
489 if (fd > 0) close(fd);
492 FDIOBufferInit(&NW->IO.IOB, &NW->IO.SendBuf, fd, TotalSendSize);
494 StrBufPlain(NW->IO.SendBuf.Buf, HKEY("NUOP\n"));
499 eNextState NWC_ReadNUOPReply(AsyncNetworker *NW)
501 AsyncIO *IO = &NW->IO;
503 if (ChrPtr(NW->IO.IOBuf)[0] != '2') {
504 FDIOBufferDelete(&IO->IOB);
510 eNextState NWC_SendWRIT(AsyncNetworker *NW)
512 AsyncIO *IO = &NW->IO;
513 StrBufPrintf(NW->IO.SendBuf.Buf, "WRIT %ld\n",
514 NW->IO.IOB.TotalSendSize - NW->IO.IOB.TotalSentAlready);
518 eNextState NWC_ReadWRITReply(AsyncNetworker *NW)
520 AsyncIO *IO = &NW->IO;
522 if (ChrPtr(NW->IO.IOBuf)[0] != '7')
524 FDIOBufferDelete(&IO->IOB);
528 NW->IO.IOB.ChunkSendRemain =
529 NW->IO.IOB.ChunkSize = atol(ChrPtr(NW->IO.IOBuf)+4);
533 eNextState NWC_SendBlobDone(AsyncNetworker *NW)
535 AsyncIO *IO = &NW->IO;
537 if (NW->IO.IOB.TotalSentAlready >= IO->IOB.TotalSendSize)
541 FDIOBufferDelete(&IO->IOB);
542 rc = NWC_DispatchWriteDone(IO);
548 IO->IOB.ChunkSendRemain = IO->IOB.ChunkSize;
549 rc = NWC_DispatchWriteDone(IO);
555 eNextState NWC_SendUCLS(AsyncNetworker *NW)
557 AsyncIO *IO = &NW->IO;
558 StrBufPlain(NW->IO.SendBuf.Buf, HKEY("UCLS 1\n"));
563 eNextState NWC_ReadUCLS(AsyncNetworker *NW)
565 AsyncIO *IO = &NW->IO;
568 EVN_syslog(LOG_NOTICE, "Sent %ld octets to <%s>\n", NW->IO.IOB.ChunkSize, ChrPtr(NW->node));
569 if (ChrPtr(NW->IO.IOBuf)[0] == '2') {
570 EVN_syslog(LOG_DEBUG, "Removing <%s>\n", ChrPtr(NW->SpoolFileName));
571 unlink(ChrPtr(NW->SpoolFileName));
573 FDIOBufferDelete(&IO->IOB);
577 eNextState NWC_SendQUIT(AsyncNetworker *NW)
579 AsyncIO *IO = &NW->IO;
580 StrBufPlain(NW->IO.SendBuf.Buf, HKEY("QUIT\n"));
586 eNextState NWC_ReadQUIT(AsyncNetworker *NW)
588 AsyncIO *IO = &NW->IO;
595 NWClientHandler NWC_ReadHandlers[] = {
608 long NWC_ConnTimeout = 100;
610 const long NWC_SendTimeouts[] = {
620 const ConstStr NWC[] = {
621 {HKEY("Connection broken during ")},
622 {HKEY("Connection broken during ")},
623 {HKEY("Connection broken during ")},
624 {HKEY("Connection broken during ")},
625 {HKEY("Connection broken during ")},
626 {HKEY("Connection broken during ")},
627 {HKEY("Connection broken during ")},
628 {HKEY("Connection broken during ")}
631 NWClientHandler NWC_SendHandlers[] = {
636 NWC_ReadREADBlobDone,
645 const long NWC_ReadTimeouts[] = {
661 eNextState nwc_get_one_host_ip_done(AsyncIO *IO)
663 AsyncNetworker *NW = IO->Data;
664 struct hostent *hostent;
668 hostent = NW->HostLookup.VParsedDNSReply;
669 if ((NW->HostLookup.DNSStatus == ARES_SUCCESS) &&
670 (hostent != NULL) ) {
671 memset(&NW->IO.ConnectMe->Addr, 0, sizeof(struct in6_addr));
672 if (NW->IO.ConnectMe->IPv6) {
673 memcpy(&NW->IO.ConnectMe->Addr.sin6_addr.s6_addr,
674 &hostent->h_addr_list[0],
675 sizeof(struct in6_addr));
677 NW->IO.ConnectMe->Addr.sin6_family = hostent->h_addrtype;
678 NW->IO.ConnectMe->Addr.sin6_port = htons(atol(ChrPtr(NW->port)));//// TODO use the one from the URL.
681 struct sockaddr_in *addr = (struct sockaddr_in*) &NW->IO.ConnectMe->Addr;
682 /* Bypass the ns lookup result like this: IO->Addr.sin_addr.s_addr = inet_addr("127.0.0.1"); */
683 // addr->sin_addr.s_addr = htonl((uint32_t)&hostent->h_addr_list[0]);
684 memcpy(&addr->sin_addr.s_addr,
685 hostent->h_addr_list[0],
688 addr->sin_family = hostent->h_addrtype;
689 addr->sin_port = htons(504);/// default citadel port
692 return nwc_connect_ip(IO);
699 eNextState nwc_get_one_host_ip(AsyncIO *IO)
701 AsyncNetworker *NW = IO->Data;
703 * here we start with the lookup of one host.
706 EVN_syslog(LOG_DEBUG, "NWC: %s\n", __FUNCTION__);
708 EVN_syslog(LOG_DEBUG,
709 "NWC client[%ld]: looking up %s-Record %s : %d ...\n",
711 (NW->IO.ConnectMe->IPv6)? "aaaa": "a",
712 NW->IO.ConnectMe->Host,
713 NW->IO.ConnectMe->Port);
715 QueueQuery((NW->IO.ConnectMe->IPv6)? ns_t_aaaa : ns_t_a,
716 NW->IO.ConnectMe->Host,
719 nwc_get_one_host_ip_done);
720 IO->NextState = eReadDNSReply;
721 return IO->NextState;
724 * @brief lineread Handler; understands when to read more POP3 lines, and when this is a one-lined reply.
726 eReadState NWC_ReadServerStatus(AsyncIO *IO)
728 // AsyncNetworker *NW = IO->Data;
729 eReadState Finished = eBufferNotEmpty;
731 switch (IO->NextState) {
736 case eTerminateConnection:
738 Finished = eReadFail;
744 Finished = StrBufChunkSipLine(IO->IOBuf, &IO->RecvBuf);
756 eNextState NWC_FailNetworkConnection(AsyncIO *IO)
761 void NWC_SetTimeout(eNextState NextTCPState, AsyncNetworker *NW)
763 AsyncIO *IO = &NW->IO;
764 double Timeout = 0.0;
766 EVN_syslog(LOG_DEBUG, "%s - %d\n", __FUNCTION__, NextTCPState);
768 switch (NextTCPState) {
774 Timeout = NWC_ReadTimeouts[NW->State];
785 case eTerminateConnection:
788 case eReadMore://// TODO
792 EVN_syslog(LOG_DEBUG,
797 SetNextTimeout(&NW->IO, Timeout*100);
802 eNextState NWC_DispatchReadDone(AsyncIO *IO)
804 EVN_syslog(LOG_DEBUG, "%s\n", __FUNCTION__);
805 AsyncNetworker *NW = IO->Data;
808 rc = NWC_ReadHandlers[NW->State](NW);
811 NWC_SetTimeout(rc, NW);
814 eNextState NWC_DispatchWriteDone(AsyncIO *IO)
816 EVN_syslog(LOG_DEBUG, "%s\n", __FUNCTION__);
817 AsyncNetworker *NW = IO->Data;
820 rc = NWC_SendHandlers[NW->State](NW);
821 NWC_SetTimeout(rc, NW);
825 /*****************************************************************************/
826 /* Networker CLIENT ERROR CATCHERS */
827 /*****************************************************************************/
828 eNextState NWC_Terminate(AsyncIO *IO)
830 EVN_syslog(LOG_DEBUG, "%s\n", __FUNCTION__);
831 FinalizeNetworker(IO);
835 eNextState NWC_TerminateDB(AsyncIO *IO)
837 EVN_syslog(LOG_DEBUG, "%s\n", __FUNCTION__);
838 FinalizeNetworker(IO);
842 eNextState NWC_Timeout(AsyncIO *IO)
844 AsyncNetworker *NW = IO->Data;
845 EVN_syslog(LOG_DEBUG, "%s\n", __FUNCTION__);
847 if (NW->IO.ErrMsg == NULL)
848 NW->IO.ErrMsg = NewStrBuf();
849 StrBufPrintf(NW->IO.ErrMsg, "Timeout while talking to %s \r\n", ChrPtr(NW->host));
850 return NWC_FailNetworkConnection(IO);
852 eNextState NWC_ConnFail(AsyncIO *IO)
854 AsyncNetworker *NW = IO->Data;
856 EVN_syslog(LOG_DEBUG, "%s\n", __FUNCTION__);
857 if (NW->IO.ErrMsg == NULL)
858 NW->IO.ErrMsg = NewStrBuf();
859 StrBufPrintf(NW->IO.ErrMsg, "failed to connect %s \r\n", ChrPtr(NW->host));
861 return NWC_FailNetworkConnection(IO);
863 eNextState NWC_DNSFail(AsyncIO *IO)
865 AsyncNetworker *NW = IO->Data;
867 EVN_syslog(LOG_DEBUG, "%s\n", __FUNCTION__);
868 if (NW->IO.ErrMsg == NULL)
869 NW->IO.ErrMsg = NewStrBuf();
870 StrBufPrintf(NW->IO.ErrMsg, "failed to look up %s \r\n", ChrPtr(NW->host));
872 return NWC_FailNetworkConnection(IO);
874 eNextState NWC_Shutdown(AsyncIO *IO)
876 EVN_syslog(LOG_DEBUG, "%s\n", __FUNCTION__);
878 FinalizeNetworker(IO);
883 eNextState nwc_connect_ip(AsyncIO *IO)
885 AsyncNetworker *NW = IO->Data;
887 EVN_syslog(LOG_DEBUG, "%s\n", __FUNCTION__);
888 EVN_syslog(LOG_NOTICE, "Connecting to <%s> at %s:%s\n",
893 return EvConnectSock(IO,
899 static int NetworkerCount = 0;
900 void RunNetworker(AsyncNetworker *NW)
902 NW->n = NetworkerCount++;
903 network_talking_to(SKEY(NW->node), NTT_ADD);
904 syslog(LOG_DEBUG, "NW[%s][%ld]: polling\n", ChrPtr(NW->node), NW->n);
905 ParseURL(&NW->IO.ConnectMe, NW->Url, 504);
907 InitIOStruct(&NW->IO,
910 NWC_ReadServerStatus,
912 NWC_DispatchWriteDone,
913 NWC_DispatchReadDone,
920 safestrncpy(((CitContext *)NW->IO.CitContext)->cs_host,
922 sizeof(((CitContext *)NW->IO.CitContext)->cs_host));
924 if (NW->IO.ConnectMe->IsIP) {
925 QueueEventContext(&NW->IO,
928 else { /* uneducated admin has chosen to add DNS to the equation... */
929 QueueEventContext(&NW->IO,
930 nwc_get_one_host_ip);
935 * Poll other Citadel nodes and transfer inbound/outbound network data.
936 * Set "full" to nonzero to force a poll of every node, or to zero to poll
937 * only nodes to which we have data to send.
939 void network_poll_other_citadel_nodes(int full_poll, HashList *ignetcfg)
946 StrBuf *SpoolFileName;
950 if (GetCount(ignetcfg) ==0) {
951 syslog(LOG_DEBUG, "network: no neighbor nodes are configured - not polling.\n");
954 become_session(&networker_client_CC);
956 SpoolFileName = NewStrBufPlain(ctdl_netout_dir, -1);
958 Pos = GetNewHashPos(ignetcfg, 0);
960 while (GetNextHashPos(ignetcfg, Pos, &len, &key, &vCfg))
962 /* Use the string tokenizer to grab one line at a time */
963 if(server_shutting_down)
964 return;/* TODO free stuff*/
965 NodeConf *pNode = (NodeConf*) vCfg;
967 NW = (AsyncNetworker*)malloc(sizeof(AsyncNetworker));
968 memset(NW, 0, sizeof(AsyncNetworker));
970 NW->node = NewStrBufDup(pNode->NodeName);
971 NW->host = NewStrBufDup(pNode->Host);
972 NW->port = NewStrBufDup(pNode->Port);
973 NW->secret = NewStrBufDup(pNode->Secret);
975 if ( (StrLength(NW->node) != 0) &&
976 (StrLength(NW->secret) != 0) &&
977 (StrLength(NW->host) != 0) &&
978 (StrLength(NW->port) != 0))
983 StrBufAppendBufPlain(SpoolFileName, HKEY("/"), 0);
984 StrBufAppendBuf(SpoolFileName, NW->node, 0);
985 StrBufStripSlashes(SpoolFileName, 1);
987 if (access(ChrPtr(SpoolFileName), R_OK) == 0) {
993 (StrLength(NW->host) > 0) &&
994 strcmp("0.0.0.0", ChrPtr(NW->host)))
996 NW->Url = NewStrBuf();
997 StrBufPrintf(NW->Url, "citadel://%s@%s:%s",
1001 if (!network_talking_to(SKEY(NW->node), NTT_CHECK))
1007 DeleteNetworker(NW);
1009 FreeStrBuf(&SpoolFileName);
1010 DeleteHashPos(&Pos);
1014 void network_do_clientqueue(void)
1016 HashList *working_ignetcfg;
1017 int full_processing = 1;
1018 static time_t last_run = 0L;
1021 * Run the full set of processing tasks no more frequently
1022 * than once every n seconds
1024 if ( (time(NULL) - last_run) < config.c_net_freq ) {
1025 full_processing = 0;
1026 syslog(LOG_DEBUG, "Network full processing in %ld seconds.\n",
1027 config.c_net_freq - (time(NULL)- last_run)
1031 working_ignetcfg = load_ignetcfg();
1033 * Poll other Citadel nodes. Maybe. If "full_processing" is set
1034 * then we poll everyone. Otherwise we only poll nodes we have stuff
1037 network_poll_other_citadel_nodes(full_processing, working_ignetcfg);
1038 DeleteHash(&working_ignetcfg);
1041 void LogDebugEnableNetworkClient(const int n)
1043 NetworkClientDebugEnabled = n;
1046 * Module entry point
1048 CTDL_MODULE_INIT(network_client)
1052 CtdlFillSystemContext(&networker_client_CC, "CitNetworker");
1054 CtdlRegisterSessionHook(network_do_clientqueue, EVT_TIMER, PRIO_SEND + 10);
1055 CtdlRegisterDebugFlagHook(HKEY("networkclient"), LogDebugEnableNetworkClient, &NetworkClientDebugEnabled);
1058 return "networkclient";