X-Git-Url: https://code.citadel.org/?a=blobdiff_plain;f=citadel%2Fmodules%2Fnetwork%2Fserv_network.c;h=6ed123eb090f1d10e0b1f711b518fc035e6ff715;hb=fd710adc44e642ad7b62cffbb7114c5b3f82bed4;hp=b2b296ef8bae2510ac99513535abe49b8943ccfb;hpb=848934c1722edc208c4df49c571586b72c3fc486;p=citadel.git diff --git a/citadel/modules/network/serv_network.c b/citadel/modules/network/serv_network.c index b2b296ef8..6ed123eb0 100644 --- a/citadel/modules/network/serv_network.c +++ b/citadel/modules/network/serv_network.c @@ -1,16 +1,15 @@ /* - * This module handles shared rooms, inter-Citadel mail, and outbound - * mailing list processing. + * This module handles network mail and mailing list processing. * - * Copyright (c) 2000-2012 by the citadel.org team + * Copyright (c) 2000-2021 by the citadel.org team * - * This program is open source software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License, version 3. + * This program is open source software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 3. * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. * * ** NOTE ** A word on the S_NETCONFIGS semaphore: * This is a fairly high-level type of critical section. It ensures that no @@ -18,7 +17,6 @@ * so many things inside these, here are the rules: * 1. begin_critical_section(S_NETCONFIGS) *before* begin_ any others. * 2. Do *not* perform any I/O with the client during these sections. - * */ /* @@ -39,16 +37,8 @@ #include #include #include -#if TIME_WITH_SYS_TIME -# include -# include -#else -# if HAVE_SYS_TIME_H -# include -# else -# include -# endif -#endif +#include + #ifdef HAVE_SYSCALL_H # include #else @@ -72,7 +62,6 @@ #include "internet_addressing.h" #include "serv_network.h" #include "clientsocket.h" -#include "file_ops.h" #include "citadel_dirs.h" #include "threads.h" #include "context.h" @@ -80,537 +69,15 @@ #include "netspool.h" #include "netmail.h" -int NetQDebugEnabled = 0; -struct CitContext networker_spool_CC; - -/* comes from lookup3.c from libcitadel... */ -extern uint32_t hashlittle( const void *key, size_t length, uint32_t initval); - -typedef struct __roomlists { - RoomProcList *rplist; -}roomlists; -/* - * When we do network processing, it's accomplished in two passes; one to - * gather a list of rooms and one to actually do them. It's ok that rplist - * is global; we have a mutex that keeps it safe. - */ -struct RoomProcList *rplist = NULL; - - - -/* - * Check the use table. This is a list of messages which have recently - * arrived on the system. It is maintained and queried to prevent the same - * message from being entered into the database multiple times if it happens - * to arrive multiple times by accident. - */ -int network_usetable(struct CtdlMessage *msg) -{ - StrBuf *msgid; - struct CitContext *CCC = CC; - time_t now; - - /* Bail out if we can't generate a message ID */ - if ((msg == NULL) || (msg->cm_fields[emessageId] == NULL) || (IsEmptyStr(msg->cm_fields[emessageId]))) - { - return(0); - } - - /* Generate the message ID */ - msgid = NewStrBufPlain(msg->cm_fields[emessageId], -1); - if (haschar(ChrPtr(msgid), '@') == 0) { - StrBufAppendBufPlain(msgid, HKEY("@"), 0); - if (msg->cm_fields[eNodeName] != NULL) { - StrBufAppendBufPlain(msgid, msg->cm_fields[eNodeName], -1, 0); - } - else { - FreeStrBuf(&msgid); - return(0); - } - } - now = time(NULL); - if (CheckIfAlreadySeen("Networker Import", - msgid, - now, 0, - eCheckUpdate, - CCC->cs_pid, 0) != 0) - { - FreeStrBuf(&msgid); - return(1); - } - FreeStrBuf(&msgid); - - return(0); -} - - - -/* - * Send the *entire* contents of the current room to one specific network node, - * ignoring anything we know about which messages have already undergone - * network processing. This can be used to bring a new node into sync. - */ -int network_sync_to(char *target_node, long len) -{ - struct CitContext *CCC = CC; - OneRoomNetCfg OneRNCFG; - OneRoomNetCfg *pRNCFG; - const RoomNetCfgLine *pCfgLine; - SpoolControl sc; - int num_spooled = 0; - - /* Grab the configuration line we're looking for */ - begin_critical_section(S_NETCONFIGS); - pRNCFG = CtdlGetNetCfgForRoom(CCC->room.QRnumber); - if ((pRNCFG == NULL) || - (pRNCFG->NetConfigs[ignet_push_share] == NULL)) - { - return -1; - } - - pCfgLine = pRNCFG->NetConfigs[ignet_push_share]; - while (pCfgLine != NULL) - { - if (!strcmp(ChrPtr(pCfgLine->Value[0]), target_node)) - break; - pCfgLine = pCfgLine->next; - } - if (pCfgLine == NULL) - { - return -1; - } - - memset(&sc, 0, sizeof(SpoolControl)); - memset(&OneRNCFG, 0, sizeof(OneRoomNetCfg)); - sc.RNCfg = &OneRNCFG; - sc.RNCfg->NetConfigs[ignet_push_share] = DuplicateOneGenericCfgLine(pCfgLine); - sc.Users[ignet_push_share] = NewStrBufPlain(NULL, - StrLength(pCfgLine->Value[0]) + - StrLength(pCfgLine->Value[1]) + 10); - StrBufAppendBuf(sc.Users[ignet_push_share], - pCfgLine->Value[0], - 0); - StrBufAppendBufPlain(sc.Users[ignet_push_share], - HKEY(","), - 0); - - StrBufAppendBuf(sc.Users[ignet_push_share], - pCfgLine->Value[1], - 0); - CalcListID(&sc); - - end_critical_section(S_NETCONFIGS); - - sc.working_ignetcfg = CtdlLoadIgNetCfg(); - sc.the_netmap = CtdlReadNetworkMap(); - - /* Send ALL messages */ - num_spooled = CtdlForEachMessage(MSGS_ALL, 0L, NULL, NULL, NULL, - network_spool_msg, &sc); - - /* Concise cleanup because we know there's only one node in the sc */ - DeleteGenericCfgLine(NULL/*TODO*/, &sc.RNCfg->NetConfigs[ignet_push_share]); - - DeleteHash(&sc.working_ignetcfg); - DeleteHash(&sc.the_netmap); - free_spoolcontrol_struct_members(&sc); - - QN_syslog(LOG_NOTICE, "Synchronized %d messages to <%s>\n", - num_spooled, target_node); - return(num_spooled); -} - - -/* - * Implements the NSYN command - */ -void cmd_nsyn(char *argbuf) { - int num_spooled; - long len; - char target_node[256]; - - if (CtdlAccessCheck(ac_aide)) return; - - len = extract_token(target_node, argbuf, 0, '|', sizeof target_node); - num_spooled = network_sync_to(target_node, len); - if (num_spooled >= 0) { - cprintf("%d Spooled %d messages.\n", CIT_OK, num_spooled); - } - else { - cprintf("%d No such room/node share exists.\n", - ERROR + ROOM_NOT_FOUND); - } -} - -RoomProcList *CreateRoomProcListEntry(struct ctdlroom *qrbuf, OneRoomNetCfg *OneRNCFG) -{ - int i; - struct RoomProcList *ptr; - - ptr = (struct RoomProcList *) malloc(sizeof (struct RoomProcList)); - if (ptr == NULL) return NULL; - - ptr->namelen = strlen(qrbuf->QRname); - if (ptr->namelen > ROOMNAMELEN) - ptr->namelen = ROOMNAMELEN - 1; - - memcpy (ptr->name, qrbuf->QRname, ptr->namelen); - ptr->name[ptr->namelen] = '\0'; - ptr->QRNum = qrbuf->QRnumber; - - for (i = 0; i < ptr->namelen; i++) - { - ptr->lcname[i] = tolower(ptr->name[i]); - } - - ptr->lcname[ptr->namelen] = '\0'; - ptr->key = hashlittle(ptr->lcname, ptr->namelen, 9872345); - ptr->lastsent = OneRNCFG->lastsent; - ptr->OneRNCfg = OneRNCFG; - return ptr; -} - -/* - * Batch up and send all outbound traffic from the current room - */ -void network_queue_interesting_rooms(struct ctdlroom *qrbuf, void *data, OneRoomNetCfg *OneRNCfg) -{ - struct RoomProcList *ptr; - roomlists *RP = (roomlists*) data; - - if (!HaveSpoolConfig(OneRNCfg)) - return; - - ptr = CreateRoomProcListEntry(qrbuf, OneRNCfg); - - if (ptr != NULL) - { - ptr->next = RP->rplist; - RP->rplist = ptr; - } -} - -/* - * Batch up and send all outbound traffic from the current room - */ -int network_room_handler (struct ctdlroom *qrbuf) -{ - struct RoomProcList *ptr; - OneRoomNetCfg* RNCfg; - - if (qrbuf->QRdefaultview == VIEW_QUEUE) - return 1; - - RNCfg = CtdlGetNetCfgForRoom(qrbuf->QRnumber); - if (RNCfg == NULL) - return 1; - - if (!HaveSpoolConfig(RNCfg)) - return 1; - - ptr = CreateRoomProcListEntry(qrbuf, RNCfg); - if (ptr == NULL) - return 1; - - ptr->OneRNCfg = NULL; - begin_critical_section(S_RPLIST); - ptr->next = rplist; - rplist = ptr; - end_critical_section(S_RPLIST); - return 1; -} - -void destroy_network_queue_room(RoomProcList *rplist) -{ - struct RoomProcList *cur, *p; - - cur = rplist; - while (cur != NULL) - { - p = cur->next; - free (cur); - cur = p; - } -} - -void destroy_network_queue_room_locked (void) -{ - begin_critical_section(S_RPLIST); - destroy_network_queue_room(rplist); - end_critical_section(S_RPLIST); -} - - - -/* - * Bounce a message back to the sender - */ -void network_bounce(struct CtdlMessage *msg, char *reason) -{ - struct CitContext *CCC = CC; - char buf[SIZ]; - char bouncesource[SIZ]; - char recipient[SIZ]; - struct recptypes *valid = NULL; - char force_room[ROOMNAMELEN]; - static int serialnum = 0; - long len; - - QNM_syslog(LOG_DEBUG, "entering network_bounce()\n"); - - if (msg == NULL) return; - - snprintf(bouncesource, sizeof bouncesource, "%s@%s", BOUNCESOURCE, config.c_nodename); - - /* - * Give it a fresh message ID - */ - len = snprintf(buf, sizeof(buf), - "%ld.%04lx.%04x@%s", - (long)time(NULL), - (long)getpid(), - ++serialnum, - config.c_fqdn); - - CM_SetField(msg, emessageId, buf, len); - - /* - * FIXME ... right now we're just sending a bounce; we really want to - * include the text of the bounced message. - */ - CM_SetField(msg, eMesageText, reason, strlen(reason)); - msg->cm_format_type = 0; - - /* - * Turn the message around - */ - CM_FlushField(msg, eRecipient); - CM_FlushField(msg, eDestination); - - len = snprintf(recipient, sizeof(recipient), "%s@%s", - msg->cm_fields[eAuthor], - msg->cm_fields[eNodeName]); - - CM_SetField(msg, eAuthor, HKEY(BOUNCESOURCE)); - CM_SetField(msg, eNodeName, config.c_nodename, strlen(config.c_nodename)); - CM_SetField(msg, eMsgSubject, HKEY("Delivery Status Notification (Failure)")); - - Netmap_AddMe(msg, HKEY("unknown_user")); - - /* Now submit the message */ - valid = validate_recipients(recipient, NULL, 0); - if (valid != NULL) if (valid->num_error != 0) { - free_recipients(valid); - valid = NULL; - } - if ( (valid == NULL) || (!strcasecmp(recipient, bouncesource)) ) { - strcpy(force_room, config.c_aideroom); - } - else { - strcpy(force_room, ""); - } - if ( (valid == NULL) && IsEmptyStr(force_room) ) { - strcpy(force_room, config.c_aideroom); - } - CtdlSubmitMsg(msg, valid, force_room, 0); - - /* Clean up */ - if (valid != NULL) free_recipients(valid); - CtdlFreeMessage(msg); - QNM_syslog(LOG_DEBUG, "leaving network_bounce()\n"); -} - - - -/* - * network_do_queue() - * - * Run through the rooms doing various types of network stuff. - */ -void network_do_queue(void) -{ - struct CitContext *CCC = CC; - static time_t last_run = 0L; - int full_processing = 1; - HashList *working_ignetcfg; - HashList *the_netmap = NULL; - int netmap_changed = 0; - roomlists RL; - SpoolControl *sc = NULL; - SpoolControl *pSC; - - /* - * Run the full set of processing tasks no more frequently - * than once every n seconds - */ - if ( (time(NULL) - last_run) < config.c_net_freq ) { - full_processing = 0; - syslog(LOG_DEBUG, "Network full processing in %ld seconds.\n", - config.c_net_freq - (time(NULL)- last_run) - ); - } - - become_session(&networker_spool_CC); - begin_critical_section(S_RPLIST); - RL.rplist = rplist; - rplist = NULL; - end_critical_section(S_RPLIST); -///TODO hm, check whether we have a config at all here? - /* Load the IGnet Configuration into memory */ - working_ignetcfg = CtdlLoadIgNetCfg(); - - /* - * Load the network map and filter list into memory. - */ - if (!server_shutting_down) - the_netmap = CtdlReadNetworkMap(); -#if 0 - /* filterlist isn't supported anymore - if (!server_shutting_down) - load_network_filter_list(); - */ -#endif - - /* - * Go ahead and run the queue - */ - if (full_processing && !server_shutting_down) { - QNM_syslog(LOG_DEBUG, "network: loading outbound queue"); - CtdlForEachNetCfgRoom(network_queue_interesting_rooms, &RL, maxRoomNetCfg); - } - - if ((RL.rplist != NULL) && (!server_shutting_down)) { - RoomProcList *ptr, *cmp; - ptr = RL.rplist; - QNM_syslog(LOG_DEBUG, "network: running outbound queue"); - while (ptr != NULL && !server_shutting_down) { - - cmp = ptr->next; - /* filter duplicates from the list... */ - while (cmp != NULL) { - if ((cmp->namelen > 0) && - (cmp->key == ptr->key) && - (cmp->namelen == ptr->namelen) && - (strcmp(cmp->lcname, ptr->lcname) == 0)) - { - cmp->namelen = 0; - } - cmp = cmp->next; - } - - if (ptr->namelen > 0) { - InspectQueuedRoom(&sc, - ptr, - working_ignetcfg, - the_netmap); - } - ptr = ptr->next; - } - } - - - pSC = sc; - while (pSC != NULL) - { - network_spoolout_room(pSC); - pSC = pSC->next; - } - - pSC = sc; - while (pSC != NULL) - { - sc = pSC->next; - free_spoolcontrol_struct(&pSC); - pSC = sc; - } - /* If there is anything in the inbound queue, process it */ - if (!server_shutting_down) { - network_do_spoolin(working_ignetcfg, - the_netmap, - &netmap_changed); - } - - /* Free the filter list in memory */ - free_netfilter_list(); - - /* Save the network map back to disk */ - if (netmap_changed) { - StrBuf *MapStr = CtdlSerializeNetworkMap(the_netmap); - char *pMapStr = SmashStrBuf(&MapStr); - CtdlPutSysConfig(IGNETMAP, pMapStr); - free(pMapStr); - } - - /* combine singe message files into one spool entry per remote node. */ - network_consolidate_spoolout(working_ignetcfg, the_netmap); - - /* shut down. */ - - DeleteHash(&the_netmap); - - DeleteHash(&working_ignetcfg); - - QNM_syslog(LOG_DEBUG, "network: queue run completed"); - - if (full_processing) { - last_run = time(NULL); - } - destroy_network_queue_room(RL.rplist); - SaveChangedConfigs(); - -} - - - - - - - - -void network_logout_hook(void) -{ - CitContext *CCC = MyContext(); - - /* - * If we were talking to a network node, we're not anymore... - */ - if (!IsEmptyStr(CCC->net_node)) { - CtdlNetworkTalkingTo(CCC->net_node, strlen(CCC->net_node), NTT_REMOVE); - CCC->net_node[0] = '\0'; - } -} -void network_cleanup_function(void) -{ - struct CitContext *CCC = CC; - - if (!IsEmptyStr(CCC->net_node)) { - CtdlNetworkTalkingTo(CCC->net_node, strlen(CCC->net_node), NTT_REMOVE); - CCC->net_node[0] = '\0'; - } -} /* * Module entry point */ - -void SetNetQDebugEnabled(const int n) -{ - NetQDebugEnabled = n; -} - CTDL_MODULE_INIT(network) { if (!threading) { - CtdlFillSystemContext(&networker_spool_CC, "CitNetSpool"); - CtdlRegisterDebugFlagHook(HKEY("networkqueue"), SetNetQDebugEnabled, &NetQDebugEnabled); - CtdlRegisterSessionHook(network_cleanup_function, EVT_STOP, PRIO_STOP + 30); - CtdlRegisterSessionHook(network_logout_hook, EVT_LOGOUT, PRIO_LOGOUT + 10); - CtdlRegisterProtoHook(cmd_nsyn, "NSYN", "Synchronize room to node"); - CtdlRegisterRoomHook(network_room_handler); - CtdlRegisterCleanupHook(destroy_network_queue_room_locked); - CtdlRegisterSessionHook(network_do_queue, EVT_TIMER, PRIO_QUEUE + 10); } return "network"; }