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 DBGLOG(LEVEL) if ((LEVEL != LOG_DEBUG) || (NetworkClientDebugEnabled != 0))
98 #define EVN_syslog(LEVEL, FORMAT, ...) \
99 DBGLOG(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 DBGLOG(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 DBGLOG(LEVEL) syslog(LEVEL, "IO[%ld]NW[%s][%ld]" FORMAT, \
110 IO->ID, NODE, N, __VA_ARGS__)
112 #define EVNCSM_syslog(LEVEL, FORMAT) \
113 DBGLOG(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 if (NW->IO.ErrMsg == NULL)
231 NW->IO.ErrMsg = NewStrBuf();
232 StrBufPrintf(NW->IO.ErrMsg,
233 "Connected to node \"%s\" but my secret wasn't accurate.",
235 EVN_syslog(LOG_ERR, "%s\n", ChrPtr(NW->IO.ErrMsg));
236 CtdlAideMessage(ChrPtr(NW->IO.ErrMsg), "Network error");
242 eNextState NWC_SendNDOP(AsyncNetworker *NW)
244 AsyncIO *IO = &NW->IO;
245 NW->tempFileName = NewStrBuf();
246 NW->SpoolFileName = NewStrBuf();
247 StrBufPrintf(NW->SpoolFileName,
251 time(NULL),// TODO: get time from libev
253 StrBufStripSlashes(NW->SpoolFileName, 1);
254 StrBufPrintf(NW->tempFileName,
258 time(NULL),// TODO: get time from libev
260 StrBufStripSlashes(NW->tempFileName, 1);
261 /* We're talking to the correct node. Now identify ourselves. */
262 StrBufPlain(NW->IO.SendBuf.Buf, HKEY("NDOP\n"));
267 eNextState NWC_ReadNDOPReply(AsyncNetworker *NW)
269 AsyncIO *IO = &NW->IO;
272 if (ChrPtr(NW->IO.IOBuf)[0] == '2')
275 NW->IO.IOB.TotalSentAlready = 0;
276 TotalSendSize = atol (ChrPtr(NW->IO.IOBuf) + 4);
277 EVN_syslog(LOG_DEBUG, "Expecting to transfer %d bytes\n", TotalSendSize);
278 if (TotalSendSize <= 0) {
279 NW->State = eNUOP - 1;
283 fd = open(ChrPtr(NW->tempFileName),
284 O_EXCL|O_CREAT|O_NONBLOCK|O_WRONLY,
289 "cannot open %s: %s\n",
290 ChrPtr(NW->tempFileName),
293 NW->State = eQUIT - 1;
296 FDIOBufferInit(&NW->IO.IOB, &NW->IO.RecvBuf, fd, TotalSendSize);
306 eNextState NWC_SendREAD(AsyncNetworker *NW)
308 AsyncIO *IO = &NW->IO;
311 if (NW->IO.IOB.TotalSentAlready < NW->IO.IOB.TotalSendSize)
314 * If shutting down we can exit here and unlink the temp file.
315 * this shouldn't loose us any messages.
317 if (server_shutting_down)
319 FDIOBufferDelete(&NW->IO.IOB);
320 unlink(ChrPtr(NW->tempFileName));
321 FDIOBufferDelete(&IO->IOB);
324 StrBufPrintf(NW->IO.SendBuf.Buf, "READ %ld|%ld\n",
325 NW->IO.IOB.TotalSentAlready,
326 NW->IO.IOB.TotalSendSize);
328 ((NW->IO.IOB.TotalSendSize - NW->IO.IOB.TotalSentAlready > IGNET_PACKET_SIZE)
329 ? IGNET_PACKET_SIZE :
330 (NW->IO.IOB.TotalSendSize - NW->IO.IOB.TotalSentAlready))
339 rc = NWC_DispatchWriteDone(&NW->IO);
346 eNextState NWC_ReadREADState(AsyncNetworker *NW)
348 AsyncIO *IO = &NW->IO;
350 if (ChrPtr(NW->IO.IOBuf)[0] == '6')
352 NW->IO.IOB.ChunkSendRemain =
353 NW->IO.IOB.ChunkSize = atol(ChrPtr(NW->IO.IOBuf)+4);
356 FDIOBufferDelete(&IO->IOB);
359 eNextState NWC_ReadREADBlobDone(AsyncNetworker *NW);
360 eNextState NWC_ReadREADBlob(AsyncNetworker *NW)
363 AsyncIO *IO = &NW->IO;
365 if (NW->IO.IOB.TotalSendSize == NW->IO.IOB.TotalSentAlready)
369 FDIOBufferDelete(&NW->IO.IOB);
371 if (link(ChrPtr(NW->tempFileName), ChrPtr(NW->SpoolFileName)) != 0) {
372 EVN_syslog(LOG_ALERT,
373 "Could not link %s to %s: %s\n",
374 ChrPtr(NW->tempFileName),
375 ChrPtr(NW->SpoolFileName),
379 unlink(ChrPtr(NW->tempFileName));
380 rc = NWC_DispatchWriteDone(&NW->IO);
386 NW->IO.IOB.ChunkSendRemain = NW->IO.IOB.ChunkSize;
387 return eSendReply; //NWC_DispatchWriteDone(&NW->IO);
391 eNextState NWC_ReadREADBlobDone(AsyncNetworker *NW)
394 AsyncIO *IO = &NW->IO;
395 /* we don't have any data to debug print here. */
396 if (NW->IO.IOB.TotalSentAlready >= NW->IO.IOB.TotalSendSize)
400 FDIOBufferDelete(&NW->IO.IOB);
401 if (link(ChrPtr(NW->tempFileName), ChrPtr(NW->SpoolFileName)) != 0) {
402 EVN_syslog(LOG_ALERT,
403 "Could not link %s to %s: %s\n",
404 ChrPtr(NW->tempFileName),
405 ChrPtr(NW->SpoolFileName),
409 unlink(ChrPtr(NW->tempFileName));
410 rc = NWC_DispatchWriteDone(&NW->IO);
416 NW->IO.IOB.ChunkSendRemain = NW->IO.IOB.ChunkSize;
417 return NWC_DispatchWriteDone(&NW->IO);
420 eNextState NWC_SendCLOS(AsyncNetworker *NW)
422 AsyncIO *IO = &NW->IO;
423 StrBufPlain(NW->IO.SendBuf.Buf, HKEY("CLOS\n"));
428 eNextState NWC_ReadCLOSReply(AsyncNetworker *NW)
430 AsyncIO *IO = &NW->IO;
432 FDIOBufferDelete(&IO->IOB);
433 if (ChrPtr(NW->IO.IOBuf)[0] != '2')
434 return eTerminateConnection;
439 eNextState NWC_SendNUOP(AsyncNetworker *NW)
441 AsyncIO *IO = &NW->IO;
447 StrBufPrintf(NW->SpoolFileName,
451 StrBufStripSlashes(NW->SpoolFileName, 1);
453 fd = open(ChrPtr(NW->SpoolFileName), O_EXCL|O_NONBLOCK|O_RDONLY);
455 if (errno != ENOENT) {
457 "cannot open %s: %s\n",
458 ChrPtr(NW->SpoolFileName),
462 rc = NWC_SendQUIT(NW);
467 if (fstat(fd, &statbuf) == -1) {
468 EVN_syslog(LOG_CRIT, "FSTAT FAILED %s [%s]--\n",
469 ChrPtr(NW->SpoolFileName),
471 if (fd > 0) close(fd);
474 TotalSendSize = statbuf.st_size;
475 if (TotalSendSize == 0) {
476 EVNM_syslog(LOG_DEBUG,
477 "Nothing to send.\n");
479 rc = NWC_SendQUIT(NW);
481 if (fd > 0) close(fd);
484 FDIOBufferInit(&NW->IO.IOB, &NW->IO.SendBuf, fd, TotalSendSize);
486 StrBufPlain(NW->IO.SendBuf.Buf, HKEY("NUOP\n"));
491 eNextState NWC_ReadNUOPReply(AsyncNetworker *NW)
493 AsyncIO *IO = &NW->IO;
495 if (ChrPtr(NW->IO.IOBuf)[0] != '2') {
496 FDIOBufferDelete(&IO->IOB);
502 eNextState NWC_SendWRIT(AsyncNetworker *NW)
504 AsyncIO *IO = &NW->IO;
505 StrBufPrintf(NW->IO.SendBuf.Buf, "WRIT %ld\n",
506 NW->IO.IOB.TotalSendSize - NW->IO.IOB.TotalSentAlready);
510 eNextState NWC_ReadWRITReply(AsyncNetworker *NW)
512 AsyncIO *IO = &NW->IO;
514 if (ChrPtr(NW->IO.IOBuf)[0] != '7')
516 FDIOBufferDelete(&IO->IOB);
520 NW->IO.IOB.ChunkSendRemain =
521 NW->IO.IOB.ChunkSize = atol(ChrPtr(NW->IO.IOBuf)+4);
525 eNextState NWC_SendBlobDone(AsyncNetworker *NW)
527 AsyncIO *IO = &NW->IO;
529 if (NW->IO.IOB.TotalSentAlready >= IO->IOB.TotalSendSize)
533 FDIOBufferDelete(&IO->IOB);
534 rc = NWC_DispatchWriteDone(IO);
540 IO->IOB.ChunkSendRemain = IO->IOB.ChunkSize;
541 rc = NWC_DispatchWriteDone(IO);
547 eNextState NWC_SendUCLS(AsyncNetworker *NW)
549 AsyncIO *IO = &NW->IO;
550 StrBufPlain(NW->IO.SendBuf.Buf, HKEY("UCLS 1\n"));
555 eNextState NWC_ReadUCLS(AsyncNetworker *NW)
557 AsyncIO *IO = &NW->IO;
560 EVN_syslog(LOG_NOTICE, "Sent %ld octets to <%s>\n", NW->IO.IOB.ChunkSize, ChrPtr(NW->node));
561 if (ChrPtr(NW->IO.IOBuf)[0] == '2') {
562 EVN_syslog(LOG_DEBUG, "Removing <%s>\n", ChrPtr(NW->SpoolFileName));
563 unlink(ChrPtr(NW->SpoolFileName));
565 FDIOBufferDelete(&IO->IOB);
569 eNextState NWC_SendQUIT(AsyncNetworker *NW)
571 AsyncIO *IO = &NW->IO;
572 StrBufPlain(NW->IO.SendBuf.Buf, HKEY("QUIT\n"));
578 eNextState NWC_ReadQUIT(AsyncNetworker *NW)
580 AsyncIO *IO = &NW->IO;
587 NWClientHandler NWC_ReadHandlers[] = {
600 long NWC_ConnTimeout = 100;
602 const long NWC_SendTimeouts[] = {
612 const ConstStr NWC[] = {
613 {HKEY("Connection broken during ")},
614 {HKEY("Connection broken during ")},
615 {HKEY("Connection broken during ")},
616 {HKEY("Connection broken during ")},
617 {HKEY("Connection broken during ")},
618 {HKEY("Connection broken during ")},
619 {HKEY("Connection broken during ")},
620 {HKEY("Connection broken during ")}
623 NWClientHandler NWC_SendHandlers[] = {
628 NWC_ReadREADBlobDone,
637 const long NWC_ReadTimeouts[] = {
653 eNextState nwc_get_one_host_ip_done(AsyncIO *IO)
655 AsyncNetworker *NW = IO->Data;
656 struct hostent *hostent;
660 hostent = NW->HostLookup.VParsedDNSReply;
661 if ((NW->HostLookup.DNSStatus == ARES_SUCCESS) &&
662 (hostent != NULL) ) {
663 memset(&NW->IO.ConnectMe->Addr, 0, sizeof(struct in6_addr));
664 if (NW->IO.ConnectMe->IPv6) {
665 memcpy(&NW->IO.ConnectMe->Addr.sin6_addr.s6_addr,
666 &hostent->h_addr_list[0],
667 sizeof(struct in6_addr));
669 NW->IO.ConnectMe->Addr.sin6_family = hostent->h_addrtype;
670 NW->IO.ConnectMe->Addr.sin6_port = htons(atol(ChrPtr(NW->port)));//// TODO use the one from the URL.
673 struct sockaddr_in *addr = (struct sockaddr_in*) &NW->IO.ConnectMe->Addr;
674 /* Bypass the ns lookup result like this: IO->Addr.sin_addr.s_addr = inet_addr("127.0.0.1"); */
675 // addr->sin_addr.s_addr = htonl((uint32_t)&hostent->h_addr_list[0]);
676 memcpy(&addr->sin_addr.s_addr,
677 hostent->h_addr_list[0],
680 addr->sin_family = hostent->h_addrtype;
681 addr->sin_port = htons(504);/// default citadel port
684 return nwc_connect_ip(IO);
691 eNextState nwc_get_one_host_ip(AsyncIO *IO)
693 AsyncNetworker *NW = IO->Data;
695 * here we start with the lookup of one host.
698 EVN_syslog(LOG_DEBUG, "NWC: %s\n", __FUNCTION__);
700 EVN_syslog(LOG_DEBUG,
701 "NWC client[%ld]: looking up %s-Record %s : %d ...\n",
703 (NW->IO.ConnectMe->IPv6)? "aaaa": "a",
704 NW->IO.ConnectMe->Host,
705 NW->IO.ConnectMe->Port);
707 QueueQuery((NW->IO.ConnectMe->IPv6)? ns_t_aaaa : ns_t_a,
708 NW->IO.ConnectMe->Host,
711 nwc_get_one_host_ip_done);
712 IO->NextState = eReadDNSReply;
713 return IO->NextState;
716 * @brief lineread Handler; understands when to read more POP3 lines, and when this is a one-lined reply.
718 eReadState NWC_ReadServerStatus(AsyncIO *IO)
720 // AsyncNetworker *NW = IO->Data;
721 eReadState Finished = eBufferNotEmpty;
723 switch (IO->NextState) {
728 case eTerminateConnection:
730 Finished = eReadFail;
736 Finished = StrBufChunkSipLine(IO->IOBuf, &IO->RecvBuf);
748 eNextState NWC_FailNetworkConnection(AsyncIO *IO)
753 void NWC_SetTimeout(eNextState NextTCPState, AsyncNetworker *NW)
755 AsyncIO *IO = &NW->IO;
756 double Timeout = 0.0;
758 EVN_syslog(LOG_DEBUG, "%s - %d\n", __FUNCTION__, NextTCPState);
760 switch (NextTCPState) {
766 Timeout = NWC_ReadTimeouts[NW->State];
777 case eTerminateConnection:
780 case eReadMore://// TODO
784 EVN_syslog(LOG_DEBUG,
789 SetNextTimeout(&NW->IO, Timeout*100);
794 eNextState NWC_DispatchReadDone(AsyncIO *IO)
796 EVN_syslog(LOG_DEBUG, "%s\n", __FUNCTION__);
797 AsyncNetworker *NW = IO->Data;
800 rc = NWC_ReadHandlers[NW->State](NW);
803 NWC_SetTimeout(rc, NW);
806 eNextState NWC_DispatchWriteDone(AsyncIO *IO)
808 EVN_syslog(LOG_DEBUG, "%s\n", __FUNCTION__);
809 AsyncNetworker *NW = IO->Data;
812 rc = NWC_SendHandlers[NW->State](NW);
813 NWC_SetTimeout(rc, NW);
817 /*****************************************************************************/
818 /* Networker CLIENT ERROR CATCHERS */
819 /*****************************************************************************/
820 eNextState NWC_Terminate(AsyncIO *IO)
822 EVN_syslog(LOG_DEBUG, "%s\n", __FUNCTION__);
823 FinalizeNetworker(IO);
827 eNextState NWC_TerminateDB(AsyncIO *IO)
829 EVN_syslog(LOG_DEBUG, "%s\n", __FUNCTION__);
830 FinalizeNetworker(IO);
834 eNextState NWC_Timeout(AsyncIO *IO)
836 AsyncNetworker *NW = IO->Data;
837 EVN_syslog(LOG_DEBUG, "%s\n", __FUNCTION__);
839 if (NW->IO.ErrMsg == NULL)
840 NW->IO.ErrMsg = NewStrBuf();
841 StrBufPrintf(NW->IO.ErrMsg, "Timeout while talking to %s \r\n", ChrPtr(NW->host));
842 return NWC_FailNetworkConnection(IO);
844 eNextState NWC_ConnFail(AsyncIO *IO)
846 AsyncNetworker *NW = IO->Data;
848 EVN_syslog(LOG_DEBUG, "%s\n", __FUNCTION__);
849 if (NW->IO.ErrMsg == NULL)
850 NW->IO.ErrMsg = NewStrBuf();
851 StrBufPrintf(NW->IO.ErrMsg, "failed to connect %s \r\n", ChrPtr(NW->host));
853 return NWC_FailNetworkConnection(IO);
855 eNextState NWC_DNSFail(AsyncIO *IO)
857 AsyncNetworker *NW = IO->Data;
859 EVN_syslog(LOG_DEBUG, "%s\n", __FUNCTION__);
860 if (NW->IO.ErrMsg == NULL)
861 NW->IO.ErrMsg = NewStrBuf();
862 StrBufPrintf(NW->IO.ErrMsg, "failed to look up %s \r\n", ChrPtr(NW->host));
864 return NWC_FailNetworkConnection(IO);
866 eNextState NWC_Shutdown(AsyncIO *IO)
868 EVN_syslog(LOG_DEBUG, "%s\n", __FUNCTION__);
870 FinalizeNetworker(IO);
875 eNextState nwc_connect_ip(AsyncIO *IO)
877 AsyncNetworker *NW = IO->Data;
879 EVN_syslog(LOG_DEBUG, "%s\n", __FUNCTION__);
880 EVN_syslog(LOG_NOTICE, "Connecting to <%s> at %s:%s\n",
885 return EvConnectSock(IO,
891 static int NetworkerCount = 0;
892 void RunNetworker(AsyncNetworker *NW)
894 NW->n = NetworkerCount++;
895 network_talking_to(SKEY(NW->node), NTT_ADD);
896 syslog(LOG_DEBUG, "NW[%s][%ld]: polling\n", ChrPtr(NW->node), NW->n);
897 ParseURL(&NW->IO.ConnectMe, NW->Url, 504);
899 InitIOStruct(&NW->IO,
902 NWC_ReadServerStatus,
904 NWC_DispatchWriteDone,
905 NWC_DispatchReadDone,
912 safestrncpy(((CitContext *)NW->IO.CitContext)->cs_host,
914 sizeof(((CitContext *)NW->IO.CitContext)->cs_host));
916 if (NW->IO.ConnectMe->IsIP) {
917 QueueEventContext(&NW->IO,
920 else { /* uneducated admin has chosen to add DNS to the equation... */
921 QueueEventContext(&NW->IO,
922 nwc_get_one_host_ip);
927 * Poll other Citadel nodes and transfer inbound/outbound network data.
928 * Set "full" to nonzero to force a poll of every node, or to zero to poll
929 * only nodes to which we have data to send.
931 void network_poll_other_citadel_nodes(int full_poll, HashList *ignetcfg)
938 StrBuf *SpoolFileName;
942 if (GetCount(ignetcfg) ==0) {
943 syslog(LOG_DEBUG, "network: no neighbor nodes are configured - not polling.\n");
946 become_session(&networker_client_CC);
948 SpoolFileName = NewStrBufPlain(ctdl_netout_dir, -1);
950 Pos = GetNewHashPos(ignetcfg, 0);
952 while (GetNextHashPos(ignetcfg, Pos, &len, &key, &vCfg))
954 /* Use the string tokenizer to grab one line at a time */
955 if(server_shutting_down)
956 return;/* TODO free stuff*/
957 NodeConf *pNode = (NodeConf*) vCfg;
959 NW = (AsyncNetworker*)malloc(sizeof(AsyncNetworker));
960 memset(NW, 0, sizeof(AsyncNetworker));
962 NW->node = NewStrBufDup(pNode->NodeName);
963 NW->host = NewStrBufDup(pNode->Host);
964 NW->port = NewStrBufDup(pNode->Port);
965 NW->secret = NewStrBufDup(pNode->Secret);
967 if ( (StrLength(NW->node) != 0) &&
968 (StrLength(NW->secret) != 0) &&
969 (StrLength(NW->host) != 0) &&
970 (StrLength(NW->port) != 0))
975 StrBufAppendBufPlain(SpoolFileName, HKEY("/"), 0);
976 StrBufAppendBuf(SpoolFileName, NW->node, 0);
977 StrBufStripSlashes(SpoolFileName, 1);
979 if (access(ChrPtr(SpoolFileName), R_OK) == 0) {
985 (StrLength(NW->host) > 0) &&
986 strcmp("0.0.0.0", ChrPtr(NW->host)))
988 NW->Url = NewStrBuf();
989 StrBufPrintf(NW->Url, "citadel://:%s@%s:%s",
993 if (!network_talking_to(SKEY(NW->node), NTT_CHECK))
1001 FreeStrBuf(&SpoolFileName);
1002 DeleteHashPos(&Pos);
1006 void network_do_clientqueue(void)
1008 HashList *working_ignetcfg;
1009 int full_processing = 1;
1010 static time_t last_run = 0L;
1013 * Run the full set of processing tasks no more frequently
1014 * than once every n seconds
1016 if ( (time(NULL) - last_run) < config.c_net_freq ) {
1017 full_processing = 0;
1018 syslog(LOG_DEBUG, "Network full processing in %ld seconds.\n",
1019 config.c_net_freq - (time(NULL)- last_run)
1023 working_ignetcfg = load_ignetcfg();
1025 * Poll other Citadel nodes. Maybe. If "full_processing" is set
1026 * then we poll everyone. Otherwise we only poll nodes we have stuff
1029 network_poll_other_citadel_nodes(full_processing, working_ignetcfg);
1030 DeleteHash(&working_ignetcfg);
1033 void LogDebugEnableNetworkClient(const int n)
1035 NetworkClientDebugEnabled = n;
1038 * Module entry point
1040 CTDL_MODULE_INIT(network_client)
1044 CtdlFillSystemContext(&networker_client_CC, "CitNetworker");
1046 CtdlRegisterSessionHook(network_do_clientqueue, EVT_TIMER);
1047 CtdlRegisterDebugFlagHook(HKEY("networkclient"), LogDebugEnableNetworkClient, &NetworkClientDebugEnabled);
1050 return "networkclient";