/*
* $Id$
*
- * This module will eventually replace netproc and some of its utilities. In
- * the meantime, it serves as a mailing list manager.
+ * This module handles shared rooms, inter-Citadel mail, and outbound
+ * mailing list processing.
*
- * Copyright (C) 2000-2001 by Art Cancro and others.
+ * Copyright (C) 2000-2002 by Art Cancro and others.
* This code is released under the terms of the GNU General Public License.
*
+ * ** NOTE ** A word on the S_NETCONFIGS semaphore:
+ * This is a fairly high-level type of critical section. It ensures that no
+ * two threads work on the netconfigs files at the same time. Since we do
+ * 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.
+ *
+ */
+
+/*
+ * Duration of time (in seconds) after which pending list subscribe/unsubscribe
+ * requests that have not been confirmed will be deleted.
*/
+#define EXP 259200 /* three days */
#include "sysdep.h"
#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include <fcntl.h>
+#include <ctype.h>
#include <signal.h>
#include <pwd.h>
#include <errno.h>
+#include <sys/stat.h>
#include <sys/types.h>
#include <dirent.h>
#if TIME_WITH_SYS_TIME
#include "citserver.h"
#include "support.h"
#include "config.h"
-#include "dynloader.h"
+#include "serv_extensions.h"
#include "room_ops.h"
#include "user_ops.h"
#include "policy.h"
#include "tools.h"
#include "internet_addressing.h"
#include "serv_network.h"
+#include "clientsocket.h"
+#include "file_ops.h"
+#ifndef HAVE_SNPRINTF
+#include "snprintf.h"
+#endif
+
+/* Nonzero while we are doing outbound network processing */
+static int doing_queue = 0;
/*
* When we do network processing, it's accomplished in two passes; one to
* is global; this process *only* runs as part of the housekeeping loop and
* therefore only one will run at a time.
*/
-struct RoomProcList {
- struct RoomProcList *next;
- char name[ROOMNAMELEN];
-};
-
struct RoomProcList *rplist = NULL;
+/*
+ * We build a map of network nodes during processing.
+ */
+struct NetMap *the_netmap = NULL;
+int netmap_changed = 0;
+char *working_ignetcfg = NULL;
/*
- * We build a map of the Citadel network during network runs.
+ * Load or refresh the Citadel network (IGnet) configuration for this node.
*/
-struct NetMap {
- struct NetMap *next;
- char nodename[SIZ];
- time_t lastcontact;
- char nexthop[SIZ];
-};
+void load_working_ignetcfg(void) {
+ char *cfg;
+ char *oldcfg;
+
+ cfg = CtdlGetSysConfig(IGNETCFG);
+ if (cfg == NULL) {
+ cfg = strdup("");
+ }
+
+ oldcfg = working_ignetcfg;
+ working_ignetcfg = cfg;
+ if (oldcfg != NULL) {
+ free(oldcfg);
+ }
+}
+
+
-struct NetMap *the_netmap = NULL;
+/*
+ * Keep track of what messages to reject
+ */
+struct FilterList *load_filter_list(void) {
+ char *serialized_list = NULL;
+ int i;
+ char buf[SIZ];
+ struct FilterList *newlist = NULL;
+ struct FilterList *nptr;
+
+ serialized_list = CtdlGetSysConfig(FILTERLIST);
+ if (serialized_list == NULL) return(NULL); /* if null, no entries */
+
+ /* Use the string tokenizer to grab one line at a time */
+ for (i=0; i<num_tokens(serialized_list, '\n'); ++i) {
+ extract_token(buf, serialized_list, i, '\n', sizeof buf);
+ nptr = (struct FilterList *) malloc(sizeof(struct FilterList));
+ extract_token(nptr->fl_user, buf, 0, '|', sizeof nptr->fl_user);
+ striplt(nptr->fl_user);
+ extract_token(nptr->fl_room, buf, 1, '|', sizeof nptr->fl_room);
+ striplt(nptr->fl_room);
+ extract_token(nptr->fl_node, buf, 2, '|', sizeof nptr->fl_node);
+ striplt(nptr->fl_node);
+
+ /* Cowardly refuse to add an any/any/any entry that would
+ * end up filtering every single message.
+ */
+ if (strlen(nptr->fl_user) + strlen(nptr->fl_room)
+ + strlen(nptr->fl_node) == 0) {
+ free(nptr);
+ }
+ else {
+ nptr->next = newlist;
+ newlist = nptr;
+ }
+ }
+
+ free(serialized_list);
+ return newlist;
+}
+
+
+void free_filter_list(struct FilterList *fl) {
+ if (fl == NULL) return;
+ free_filter_list(fl->next);
+ free(fl);
+}
+
+
+
+/*
+ * 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) {
+
+ char msgid[SIZ];
+ struct cdbdata *cdbut;
+ struct UseTable ut;
+
+ /* Bail out if we can't generate a message ID */
+ if (msg == NULL) {
+ return(0);
+ }
+ if (msg->cm_fields['I'] == NULL) {
+ return(0);
+ }
+ if (strlen(msg->cm_fields['I']) == 0) {
+ return(0);
+ }
+
+ /* Generate the message ID */
+ strcpy(msgid, msg->cm_fields['I']);
+ if (haschar(msgid, '@') == 0) {
+ strcat(msgid, "@");
+ if (msg->cm_fields['N'] != NULL) {
+ strcat(msgid, msg->cm_fields['N']);
+ }
+ else {
+ return(0);
+ }
+ }
+
+ cdbut = cdb_fetch(CDB_USETABLE, msgid, strlen(msgid));
+ if (cdbut != NULL) {
+ cdb_free(cdbut);
+ return(1);
+ }
+
+ /* If we got to this point, it's unique: add it. */
+ strcpy(ut.ut_msgid, msgid);
+ ut.ut_timestamp = time(NULL);
+ cdb_store(CDB_USETABLE, msgid, strlen(msgid),
+ &ut, sizeof(struct UseTable) );
+ return(0);
+}
+
/*
* Read the network map from its configuration file into memory.
/* Use the string tokenizer to grab one line at a time */
for (i=0; i<num_tokens(serialized_map, '\n'); ++i) {
- extract_token(buf, serialized_map, i, '\n');
- nmptr = (struct NetMap *) mallok(sizeof(struct NetMap));
- extract(nmptr->nodename, buf, 0);
+ extract_token(buf, serialized_map, i, '\n', sizeof buf);
+ nmptr = (struct NetMap *) malloc(sizeof(struct NetMap));
+ extract_token(nmptr->nodename, buf, 0, '|', sizeof nmptr->nodename);
nmptr->lastcontact = extract_long(buf, 1);
- extract(nmptr->nexthop, buf, 2);
+ extract_token(nmptr->nexthop, buf, 2, '|', sizeof nmptr->nexthop);
nmptr->next = the_netmap;
the_netmap = nmptr;
}
- phree(serialized_map);
+ free(serialized_map);
+ netmap_changed = 0;
}
char *serialized_map = NULL;
struct NetMap *nmptr;
- serialized_map = strdoop("");
- if (the_netmap != NULL) {
- for (nmptr = the_netmap; nmptr != NULL; nmptr = nmptr->next) {
- serialized_map = reallok(serialized_map,
- (strlen(serialized_map)+SIZ) );
- if (strlen(nmptr->nodename) > 0) {
- sprintf(&serialized_map[strlen(serialized_map)],
- "%s|%ld|%s\n",
- nmptr->nodename,
- nmptr->lastcontact,
- nmptr->nexthop);
+ if (netmap_changed) {
+ serialized_map = strdup("");
+
+ if (the_netmap != NULL) {
+ for (nmptr = the_netmap; nmptr != NULL; nmptr = nmptr->next) {
+ serialized_map = realloc(serialized_map,
+ (strlen(serialized_map)+SIZ) );
+ if (strlen(nmptr->nodename) > 0) {
+ snprintf(&serialized_map[strlen(serialized_map)],
+ SIZ,
+ "%s|%ld|%s\n",
+ nmptr->nodename,
+ (long)nmptr->lastcontact,
+ nmptr->nexthop);
+ }
}
}
- }
- CtdlPutSysConfig(IGNETMAP, serialized_map);
- phree(serialized_map);
+ CtdlPutSysConfig(IGNETMAP, serialized_map);
+ free(serialized_map);
+ }
/* Now free the list */
while (the_netmap != NULL) {
nmptr = the_netmap->next;
- phree(the_netmap);
+ free(the_netmap);
the_netmap = nmptr;
}
+ netmap_changed = 0;
}
/*
* Check the network map and determine whether the supplied node name is
* valid. If it is not a neighbor node, supply the name of a neighbor node
- * which is the next hop.
+ * which is the next hop. If it *is* a neighbor node, we also fill in the
+ * shared secret.
*/
-int is_valid_node(char *nexthop, char *node) {
- char *ignetcfg = NULL;
+int is_valid_node(char *nexthop, char *secret, char *node) {
int i;
char linebuf[SIZ];
char buf[SIZ];
/*
* First try the neighbor nodes
*/
- ignetcfg = CtdlGetSysConfig(IGNETCFG);
- if (ignetcfg == NULL) {
+ if (working_ignetcfg == NULL) {
+ lprintf(CTDL_ERR, "working_ignetcfg is NULL!\n");
if (nexthop != NULL) {
strcpy(nexthop, "");
}
}
/* Use the string tokenizer to grab one line at a time */
- for (i=0; i<num_tokens(ignetcfg, '\n'); ++i) {
- extract_token(linebuf, ignetcfg, i, '\n');
- extract(buf, linebuf, 0);
+ for (i=0; i<num_tokens(working_ignetcfg, '\n'); ++i) {
+ extract_token(linebuf, working_ignetcfg, i, '\n', sizeof linebuf);
+ extract_token(buf, linebuf, 0, '|', sizeof buf);
if (!strcasecmp(buf, node)) {
if (nexthop != NULL) {
strcpy(nexthop, "");
}
+ if (secret != NULL) {
+ extract_token(secret, linebuf, 1, '|', 256);
+ }
retval = 0;
}
}
- phree(ignetcfg);
if (retval == 0) {
return(retval); /* yup, it's a direct neighbor */
}
/*
* If we get to this point, the supplied node name is bogus.
*/
- lprintf(5, "Invalid node name <%s>\n", node);
+ lprintf(CTDL_ERR, "Invalid node name <%s>\n", node);
return(-1);
}
FILE *fp;
if (CtdlAccessCheck(ac_room_aide)) return;
- assoc_file_name(filename, &CC->quickroom, "netconfigs");
+ assoc_file_name(filename, sizeof filename, &CC->room, "netconfigs");
cprintf("%d Network settings for room #%ld <%s>\n",
LISTING_FOLLOWS,
- CC->quickroom.QRnumber, CC->quickroom.QRname);
+ CC->room.QRnumber, CC->room.QRname);
fp = fopen(filename, "r");
if (fp != NULL) {
char buf[SIZ];
FILE *fp;
+ unbuffer_output();
+
if (CtdlAccessCheck(ac_room_aide)) return;
safestrncpy(tempfilename, tmpnam(NULL), sizeof tempfilename);
- assoc_file_name(filename, &CC->quickroom, "netconfigs");
+ assoc_file_name(filename, sizeof filename, &CC->room, "netconfigs");
fp = fopen(tempfilename, "w");
if (fp == NULL) {
cprintf("%d Cannot open %s: %s\n",
- ERROR+INTERNAL_ERROR,
+ ERROR + INTERNAL_ERROR,
tempfilename,
strerror(errno));
}
cprintf("%d %s\n", SEND_LISTING, tempfilename);
- while (client_gets(buf), strcmp(buf, "000")) {
+ while (client_getln(buf, sizeof buf), strcmp(buf, "000")) {
fprintf(fp, "%s\n", buf);
}
fclose(fp);
*/
unlink(filename);
snprintf(buf, sizeof buf, "/bin/mv %s %s", tempfilename, filename);
+ begin_critical_section(S_NETCONFIGS);
system(buf);
+ end_critical_section(S_NETCONFIGS);
}
-
/*
* Spools out one message from the list.
*/
void network_spool_msg(long msgnum, void *userdata) {
struct SpoolControl *sc;
- struct namelist *nptr;
- int err;
int i;
- char *instr = NULL;
char *newpath = NULL;
size_t instr_len = SIZ;
- struct CtdlMessage *msg;
- struct CtdlMessage *imsg;
+ struct CtdlMessage *msg = NULL;
+ struct namelist *nptr;
+ struct maplist *mptr;
struct ser_ret sermsg;
FILE *fp;
char filename[SIZ];
int bang = 0;
int send = 1;
int delete_after_send = 0; /* Set to 1 to delete after spooling */
+ int ok_to_participate = 0;
+ struct recptypes *valid;
sc = (struct SpoolControl *)userdata;
/*
* Process mailing list recipients
*/
+ instr_len = SIZ;
if (sc->listrecps != NULL) {
-
- /* First, copy it to the spoolout room */
- err = CtdlSaveMsgPointerInRoom(SMTP_SPOOLOUT_ROOM, msgnum, 0);
- if (err != 0) return;
+ /* Fetch the message. We're going to need to modify it
+ * for each recipient in order to satisfy foreign mailers, etc.
+ */
+ msg = CtdlFetchMessage(msgnum, 1);
+ if (msg != NULL) {
+
+ /* Prepend "[List name]" to the subject */
+ if (msg->cm_fields['U'] == NULL) {
+ msg->cm_fields['U'] = strdup("(no subject)");
+ }
+ snprintf(buf, sizeof buf, "[%s] %s", CC->room.QRname, msg->cm_fields['U']);
+ free(msg->cm_fields['U']);
+ msg->cm_fields['U'] = strdup(buf);
+
+ /* For each recipient... */
+ for (nptr = sc->listrecps; nptr != NULL; nptr = nptr->next) {
- /*
- * Figure out how big a buffer we need to allocate
- */
- for (nptr = sc->listrecps; nptr != NULL; nptr = nptr->next) {
- instr_len = instr_len + strlen(nptr->name);
+ if (msg->cm_fields['R'] == NULL) {
+ free(msg->cm_fields['R']);
+ }
+ msg->cm_fields['R'] = strdup(nptr->name);
+
+ valid = validate_recipients(nptr->name);
+ CtdlSubmitMsg(msg, valid, NULL, NULL, "");
+ free(valid);
+
+ }
+ CtdlFreeMessage(msg);
}
-
- /*
- * allocate...
- */
- lprintf(9, "Generating delivery instructions\n");
- instr = mallok(instr_len);
- if (instr == NULL) {
- lprintf(1, "Cannot allocate %d bytes for instr...\n",
- instr_len);
- abort();
- }
- sprintf(instr,
- "Content-type: %s\n\nmsgid|%ld\nsubmitted|%ld\n"
- "bounceto|postmaster@%s\n" ,
- SPOOLMIME, msgnum, time(NULL), config.c_fqdn );
-
- /* Generate delivery instructions for each recipient */
- for (nptr = sc->listrecps; nptr != NULL; nptr = nptr->next) {
- sprintf(&instr[strlen(instr)], "remote|%s|0||\n",
- nptr->name);
+ }
+
+ /*
+ * Process digest recipients
+ */
+ if ((sc->digestrecps != NULL) && (sc->digestfp != NULL)) {
+ msg = CtdlFetchMessage(msgnum, 1);
+ if (msg != NULL) {
+ fprintf(sc->digestfp, " -----------------------------------"
+ "------------------------------------"
+ "-------\n");
+ fprintf(sc->digestfp, "From: ");
+ if (msg->cm_fields['A'] != NULL) {
+ fprintf(sc->digestfp, "%s ", msg->cm_fields['A']);
+ }
+ if (msg->cm_fields['F'] != NULL) {
+ fprintf(sc->digestfp, "<%s> ", msg->cm_fields['F']);
+ }
+ else if (msg->cm_fields['N'] != NULL) {
+ fprintf(sc->digestfp, "@%s ", msg->cm_fields['N']);
+ }
+ fprintf(sc->digestfp, "\n");
+ if (msg->cm_fields['U'] != NULL) {
+ fprintf(sc->digestfp, "Subject: %s\n", msg->cm_fields['U']);
+ }
+
+ CC->redirect_buffer = malloc(SIZ);
+ CC->redirect_len = 0;
+ CC->redirect_alloc = SIZ;
+
+ safestrncpy(CC->preferred_formats, "text/plain", sizeof CC->preferred_formats);
+ CtdlOutputPreLoadedMsg(msg, 0L, MT_CITADEL, HEADERS_NONE, 0, 0);
+
+ striplt(CC->redirect_buffer);
+ fprintf(sc->digestfp, "\n%s\n", CC->redirect_buffer);
+
+ free(CC->redirect_buffer);
+ CC->redirect_buffer = NULL;
+ CC->redirect_len = 0;
+ CC->redirect_alloc = 0;
+
+ sc->num_msgs_spooled += 1;
+ free(msg);
}
+ }
+
+ /*
+ * Process client-side list participations for this room
+ */
+ instr_len = SIZ;
+ if (sc->participates != NULL) {
+ msg = CtdlFetchMessage(msgnum, 1);
+ if (msg != NULL) {
+
+ /* Only send messages which originated on our own Citadel
+ * network, otherwise we'll end up sending the remote
+ * mailing list's messages back to it, which is rude...
+ */
+ ok_to_participate = 0;
+ if (msg->cm_fields['N'] != NULL) {
+ if (!strcasecmp(msg->cm_fields['N'], config.c_nodename)) {
+ ok_to_participate = 1;
+ }
+ if (is_valid_node(NULL, NULL, msg->cm_fields['N']) == 0) {
+ ok_to_participate = 1;
+ }
+ }
+ if (ok_to_participate) {
+ if (msg->cm_fields['F'] != NULL) {
+ free(msg->cm_fields['F']);
+ }
+ msg->cm_fields['F'] = malloc(SIZ);
+ /* Replace the Internet email address of the actual
+ * author with the email address of the room itself,
+ * so the remote listserv doesn't reject us.
+ * FIXME ... I want to be able to pick any address
+ */
+ snprintf(msg->cm_fields['F'], SIZ,
+ "room_%s@%s", CC->room.QRname,
+ config.c_fqdn);
+ for (i=0; i<strlen(msg->cm_fields['F']); ++i) {
+ if (isspace(msg->cm_fields['F'][i])) {
+ msg->cm_fields['F'][i] = '_';
+ }
+ }
+
+ /*
+ * Figure out how big a buffer we need to allocate
+ */
+ for (nptr = sc->participates; nptr != NULL; nptr = nptr->next) {
+
+ if (msg->cm_fields['R'] == NULL) {
+ free(msg->cm_fields['R']);
+ }
+ msg->cm_fields['R'] = strdup(nptr->name);
- /*
- * Generate a message from the instructions
- */
- imsg = mallok(sizeof(struct CtdlMessage));
- memset(imsg, 0, sizeof(struct CtdlMessage));
- imsg->cm_magic = CTDLMESSAGE_MAGIC;
- imsg->cm_anon_type = MES_NORMAL;
- imsg->cm_format_type = FMT_RFC822;
- imsg->cm_fields['A'] = strdoop("Citadel");
- imsg->cm_fields['M'] = instr;
-
- /* Save delivery instructions in spoolout room */
- CtdlSaveMsg(imsg, "", SMTP_SPOOLOUT_ROOM, MES_LOCAL);
- CtdlFreeMessage(imsg);
+ valid = validate_recipients(nptr->name);
+ CtdlSubmitMsg(msg, valid, NULL, NULL, "");
+ free(valid);
+ }
+
+ }
+ CtdlFreeMessage(msg);
+ }
}
/*
*/
if (sc->ignet_push_shares != NULL) {
- msg = CtdlFetchMessage(msgnum);
+ msg = CtdlFetchMessage(msgnum, 1);
if (msg != NULL) {
+ size_t newpath_len;
/* Prepend our node name to the Path field whenever
* sending a message to another IGnet node
*/
if (msg->cm_fields['P'] == NULL) {
- msg->cm_fields['P'] = strdoop("username");
+ msg->cm_fields['P'] = strdup("username");
}
- newpath = mallok(strlen(msg->cm_fields['P']) +
- strlen(config.c_nodename) + 2);
- sprintf(newpath, "%s!%s", config.c_nodename,
- msg->cm_fields['P']);
- phree(msg->cm_fields['P']);
+ newpath_len = strlen(msg->cm_fields['P']) +
+ strlen(config.c_nodename) + 2;
+ newpath = malloc(newpath_len);
+ snprintf(newpath, newpath_len, "%s!%s",
+ config.c_nodename, msg->cm_fields['P']);
+ free(msg->cm_fields['P']);
msg->cm_fields['P'] = newpath;
- /*
- * Force the message to appear in the correct room
- * on the far end by setting the C field correctly
- */
- if (msg->cm_fields['C'] != NULL) {
- phree(msg->cm_fields['C']);
- }
- msg->cm_fields['C'] = strdoop(CC->quickroom.QRname);
-
/*
* Determine if this message is set to be deleted
* after sending out on the network
}
}
- /*
- * Now serialize it for transmission
- */
- serialize_message(&sermsg, msg);
- CtdlFreeMessage(msg);
-
/* Now send it to every node */
- for (nptr = sc->ignet_push_shares; nptr != NULL;
- nptr = nptr->next) {
+ for (mptr = sc->ignet_push_shares; mptr != NULL;
+ mptr = mptr->next) {
send = 1;
/* Check for valid node name */
- if (is_valid_node(NULL, nptr->name) != 0) {
- lprintf(3, "Invalid node <%s>\n",
- nptr->name);
+ if (is_valid_node(NULL, NULL, mptr->remote_nodename) != 0) {
+ lprintf(CTDL_ERR, "Invalid node <%s>\n",
+ mptr->remote_nodename);
send = 0;
}
/* Check for split horizon */
+ lprintf(CTDL_DEBUG, "Path is %s\n", msg->cm_fields['P']);
bang = num_tokens(msg->cm_fields['P'], '!');
if (bang > 1) for (i=0; i<(bang-1); ++i) {
extract_token(buf, msg->cm_fields['P'],
- i, '!');
- if (!strcasecmp(buf, nptr->name)) {
+ i, '!', sizeof buf);
+ if (!strcasecmp(buf, mptr->remote_nodename)) {
send = 0;
}
}
/* Send the message */
if (send == 1) {
- sprintf(filename,
- "./network/spoolout/%s",
- nptr->name);
+
+ /*
+ * Force the message to appear in the correct room
+ * on the far end by setting the C field correctly
+ */
+ if (msg->cm_fields['C'] != NULL) {
+ free(msg->cm_fields['C']);
+ }
+ if (strlen(mptr->remote_roomname) > 0) {
+ msg->cm_fields['C'] = strdup(mptr->remote_roomname);
+ }
+ else {
+ msg->cm_fields['C'] = strdup(CC->room.QRname);
+ }
+
+ /* serialize it for transmission */
+ serialize_message(&sermsg, msg);
+
+ /* write it to the spool file */
+ snprintf(filename, sizeof filename,
+#ifndef HAVE_SPOOL_DIR
+ "."
+#else
+ SPOOL_DIR
+#endif /* HAVE_SPOOL_DIR */
+ "/network/spoolout/%s",
+ mptr->remote_nodename);
+ lprintf(CTDL_DEBUG, "Appending to %s\n", filename);
fp = fopen(filename, "ab");
if (fp != NULL) {
fwrite(sermsg.ser,
sermsg.len, 1, fp);
fclose(fp);
}
+ else {
+ lprintf(CTDL_ERR, "%s: %s\n", filename, strerror(errno));
+ }
+
+ /* free the serialized version */
+ free(sermsg.ser);
}
}
- phree(sermsg.ser);
+ CtdlFreeMessage(msg);
}
}
/* Delete this message if delete-after-send is set */
if (delete_after_send) {
- CtdlDeleteMessages(CC->quickroom.QRname, msgnum, "");
+ CtdlDeleteMessages(CC->room.QRname, msgnum, "", 0);
}
}
+/*
+ * Deliver digest messages
+ */
+void network_deliver_digest(struct SpoolControl *sc) {
+ char buf[SIZ];
+ int i;
+ struct CtdlMessage *msg;
+ long msglen;
+ long msgnum;
+ char *instr = NULL;
+ size_t instr_len = SIZ;
+ struct CtdlMessage *imsg;
+ struct namelist *nptr;
+
+ if (sc->num_msgs_spooled < 1) {
+ fclose(sc->digestfp);
+ sc->digestfp = NULL;
+ return;
+ }
+
+ msg = malloc(sizeof(struct CtdlMessage));
+ memset(msg, 0, sizeof(struct CtdlMessage));
+ msg->cm_magic = CTDLMESSAGE_MAGIC;
+ msg->cm_format_type = FMT_RFC822;
+ msg->cm_anon_type = MES_NORMAL;
+
+ sprintf(buf, "%ld", time(NULL));
+ msg->cm_fields['T'] = strdup(buf);
+ msg->cm_fields['A'] = strdup(CC->room.QRname);
+ snprintf(buf, sizeof buf, "[%s]", CC->room.QRname);
+ msg->cm_fields['U'] = strdup(buf);
+ sprintf(buf, "room_%s@%s", CC->room.QRname, config.c_fqdn);
+ for (i=0; i<strlen(buf); ++i) {
+ if (isspace(buf[i])) buf[i]='_';
+ buf[i] = tolower(buf[i]);
+ }
+ msg->cm_fields['F'] = strdup(buf);
+
+ fseek(sc->digestfp, 0L, SEEK_END);
+ msglen = ftell(sc->digestfp);
+
+ msg->cm_fields['M'] = malloc(msglen + 1);
+ fseek(sc->digestfp, 0L, SEEK_SET);
+ fread(msg->cm_fields['M'], (size_t)msglen, 1, sc->digestfp);
+ msg->cm_fields['M'][msglen] = 0;
+
+ fclose(sc->digestfp);
+ sc->digestfp = NULL;
+
+ msgnum = CtdlSubmitMsg(msg, NULL, NULL, NULL, SMTP_SPOOLOUT_ROOM);
+ CtdlFreeMessage(msg);
+
+ /* Now generate the delivery instructions */
+
+ /*
+ * Figure out how big a buffer we need to allocate
+ */
+ for (nptr = sc->digestrecps; nptr != NULL; nptr = nptr->next) {
+ instr_len = instr_len + strlen(nptr->name);
+ }
+
+ /*
+ * allocate...
+ */
+ lprintf(CTDL_DEBUG, "Generating delivery instructions\n");
+ instr = malloc(instr_len);
+ if (instr == NULL) {
+ lprintf(CTDL_EMERG, "Cannot allocate %ld bytes for instr...\n",
+ (long)instr_len);
+ abort();
+ }
+ snprintf(instr, instr_len,
+ "Content-type: %s\n\nmsgid|%ld\nsubmitted|%ld\n"
+ "bounceto|postmaster@%s\n" ,
+ SPOOLMIME, msgnum, (long)time(NULL), config.c_fqdn );
+
+ /* Generate delivery instructions for each recipient */
+ for (nptr = sc->digestrecps; nptr != NULL; nptr = nptr->next) {
+ size_t tmp = strlen(instr);
+ snprintf(&instr[tmp], instr_len - tmp,
+ "remote|%s|0||\n", nptr->name);
+ }
+
+ /*
+ * Generate a message from the instructions
+ */
+ imsg = malloc(sizeof(struct CtdlMessage));
+ memset(imsg, 0, sizeof(struct CtdlMessage));
+ imsg->cm_magic = CTDLMESSAGE_MAGIC;
+ imsg->cm_anon_type = MES_NORMAL;
+ imsg->cm_format_type = FMT_RFC822;
+ imsg->cm_fields['A'] = strdup("Citadel");
+ imsg->cm_fields['M'] = instr;
+
+ /* Save delivery instructions in spoolout room */
+ CtdlSubmitMsg(imsg, NULL, NULL, NULL, SMTP_SPOOLOUT_ROOM);
+ CtdlFreeMessage(imsg);
+}
/*
char filename[SIZ];
char buf[SIZ];
char instr[SIZ];
+ char nodename[256];
+ char roomname[ROOMNAMELEN];
+ char nexthop[256];
FILE *fp;
struct SpoolControl sc;
- /* struct namelist *digestrecps = NULL; */
- struct namelist *nptr;
+ struct namelist *nptr = NULL;
+ struct maplist *mptr = NULL;
+ size_t miscsize = 0;
+ size_t linesize = 0;
+ int skipthisline = 0;
+ int i;
- lprintf(7, "Spooling <%s>\n", room_to_spool);
- if (getroom(&CC->quickroom, room_to_spool) != 0) {
- lprintf(1, "ERROR: cannot load <%s>\n", room_to_spool);
+ if (getroom(&CC->room, room_to_spool) != 0) {
+ lprintf(CTDL_CRIT, "ERROR: cannot load <%s>\n", room_to_spool);
return;
}
memset(&sc, 0, sizeof(struct SpoolControl));
- assoc_file_name(filename, &CC->quickroom, "netconfigs");
+ assoc_file_name(filename, sizeof filename, &CC->room, "netconfigs");
+
+ begin_critical_section(S_NETCONFIGS);
fp = fopen(filename, "r");
if (fp == NULL) {
- lprintf(7, "Outbound batch processing skipped for <%s>\n",
- CC->quickroom.QRname);
+ end_critical_section(S_NETCONFIGS);
return;
}
- lprintf(5, "Outbound batch processing started for <%s>\n",
- CC->quickroom.QRname);
+ lprintf(CTDL_INFO, "Networking started for <%s>\n", CC->room.QRname);
while (fgets(buf, sizeof buf, fp) != NULL) {
buf[strlen(buf)-1] = 0;
- extract(instr, buf, 0);
+ extract_token(instr, buf, 0, '|', sizeof instr);
if (!strcasecmp(instr, "lastsent")) {
sc.lastsent = extract_long(buf, 1);
}
else if (!strcasecmp(instr, "listrecp")) {
nptr = (struct namelist *)
- mallok(sizeof(struct namelist));
+ malloc(sizeof(struct namelist));
nptr->next = sc.listrecps;
- extract(nptr->name, buf, 1);
+ extract_token(nptr->name, buf, 1, '|', sizeof nptr->name);
sc.listrecps = nptr;
}
- else if (!strcasecmp(instr, "ignet_push_share")) {
+ else if (!strcasecmp(instr, "participate")) {
+ nptr = (struct namelist *)
+ malloc(sizeof(struct namelist));
+ nptr->next = sc.participates;
+ extract_token(nptr->name, buf, 1, '|', sizeof nptr->name);
+ sc.participates = nptr;
+ }
+ else if (!strcasecmp(instr, "digestrecp")) {
nptr = (struct namelist *)
- mallok(sizeof(struct namelist));
- nptr->next = sc.ignet_push_shares;
- extract(nptr->name, buf, 1);
- sc.ignet_push_shares = nptr;
+ malloc(sizeof(struct namelist));
+ nptr->next = sc.digestrecps;
+ extract_token(nptr->name, buf, 1, '|', sizeof nptr->name);
+ sc.digestrecps = nptr;
+ }
+ else if (!strcasecmp(instr, "ignet_push_share")) {
+ /* by checking each node's validity, we automatically
+ * purge nodes which do not exist from room network
+ * configurations at this time.
+ */
+ extract_token(nodename, buf, 1, '|', sizeof nodename);
+ extract_token(roomname, buf, 2, '|', sizeof roomname);
+ strcpy(nexthop, "xxx");
+ if (is_valid_node(nexthop, NULL, nodename) == 0) {
+ if (strlen(nexthop) == 0) {
+ mptr = (struct maplist *)
+ malloc(sizeof(struct maplist));
+ mptr->next = sc.ignet_push_shares;
+ strcpy(mptr->remote_nodename, nodename);
+ strcpy(mptr->remote_roomname, roomname);
+ sc.ignet_push_shares = mptr;
+ }
+ }
+ }
+ else {
+ /* Preserve 'other' lines ... *unless* they happen to
+ * be subscribe/unsubscribe pendings with expired
+ * timestamps.
+ */
+ skipthisline = 0;
+ if (!strncasecmp(buf, "subpending|", 11)) {
+ if (time(NULL) - extract_long(buf, 4) > EXP) {
+ skipthisline = 1;
+ }
+ }
+ if (!strncasecmp(buf, "unsubpending|", 13)) {
+ if (time(NULL) - extract_long(buf, 3) > EXP) {
+ skipthisline = 1;
+ }
+ }
+
+ if (skipthisline == 0) {
+ linesize = strlen(buf);
+ sc.misc = realloc(sc.misc,
+ (miscsize + linesize + 2) );
+ sprintf(&sc.misc[miscsize], "%s\n", buf);
+ miscsize = miscsize + linesize + 1;
+ }
}
}
fclose(fp);
+ /* If there are digest recipients, we have to build a digest */
+ if (sc.digestrecps != NULL) {
+ sc.digestfp = tmpfile();
+ fprintf(sc.digestfp, "Content-type: text/plain\n\n");
+ }
/* Do something useful */
- CtdlForEachMessage(MSGS_GT, sc.lastsent, (-63), NULL, NULL,
+ CtdlForEachMessage(MSGS_GT, sc.lastsent, NULL, NULL,
network_spool_msg, &sc);
+ /* If we wrote a digest, deliver it and then close it */
+ snprintf(buf, sizeof buf, "room_%s@%s",
+ CC->room.QRname, config.c_fqdn);
+ for (i=0; i<strlen(buf); ++i) {
+ buf[i] = tolower(buf[i]);
+ if (isspace(buf[i])) buf[i] = '_';
+ }
+ if (sc.digestfp != NULL) {
+ fprintf(sc.digestfp, " -----------------------------------"
+ "------------------------------------"
+ "-------\n"
+ "You are subscribed to the '%s' "
+ "list.\n"
+ "To post to the list: %s\n",
+ CC->room.QRname, buf
+ );
+ network_deliver_digest(&sc); /* deliver and close */
+ }
/* Now rewrite the config file */
fp = fopen(filename, "w");
if (fp == NULL) {
- lprintf(1, "ERROR: cannot open %s: %s\n",
+ lprintf(CTDL_CRIT, "ERROR: cannot open %s: %s\n",
filename, strerror(errno));
}
else {
while (sc.listrecps != NULL) {
fprintf(fp, "listrecp|%s\n", sc.listrecps->name);
nptr = sc.listrecps->next;
- phree(sc.listrecps);
+ free(sc.listrecps);
sc.listrecps = nptr;
}
+ /* Do the same for digestrecps */
+ while (sc.digestrecps != NULL) {
+ fprintf(fp, "digestrecp|%s\n", sc.digestrecps->name);
+ nptr = sc.digestrecps->next;
+ free(sc.digestrecps);
+ sc.digestrecps = nptr;
+ }
+ /* Do the same for participates */
+ while (sc.participates != NULL) {
+ fprintf(fp, "participate|%s\n", sc.participates->name);
+ nptr = sc.participates->next;
+ free(sc.participates);
+ sc.participates = nptr;
+ }
while (sc.ignet_push_shares != NULL) {
- fprintf(fp, "ignet_push_share|%s\n",
- sc.ignet_push_shares->name);
- nptr = sc.ignet_push_shares->next;
- phree(sc.ignet_push_shares);
- sc.ignet_push_shares = nptr;
+ /* by checking each node's validity, we automatically
+ * purge nodes which do not exist from room network
+ * configurations at this time.
+ */
+ if (is_valid_node(NULL, NULL, sc.ignet_push_shares->remote_nodename) == 0) {
+ }
+ fprintf(fp, "ignet_push_share|%s",
+ sc.ignet_push_shares->remote_nodename);
+ if (strlen(sc.ignet_push_shares->remote_roomname) > 0) {
+ fprintf(fp, "|%s", sc.ignet_push_shares->remote_roomname);
+ }
+ fprintf(fp, "\n");
+ mptr = sc.ignet_push_shares->next;
+ free(sc.ignet_push_shares);
+ sc.ignet_push_shares = mptr;
}
+ if (sc.misc != NULL) {
+ fwrite(sc.misc, strlen(sc.misc), 1, fp);
+ }
+ free(sc.misc);
fclose(fp);
}
+ end_critical_section(S_NETCONFIGS);
+}
+
+
+
+/*
+ * 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) {
+ struct SpoolControl sc;
+ int num_spooled = 0;
+ int found_node = 0;
+ char buf[256];
+ char sc_type[256];
+ char sc_node[256];
+ char sc_room[256];
+ char filename[256];
+ FILE *fp;
+
+ /* Grab the configuration line we're looking for */
+ assoc_file_name(filename, sizeof filename, &CC->room, "netconfigs");
+ begin_critical_section(S_NETCONFIGS);
+ fp = fopen(filename, "r");
+ if (fp == NULL) {
+ end_critical_section(S_NETCONFIGS);
+ return(-1);
+ }
+ while (fgets(buf, sizeof buf, fp) != NULL) {
+ buf[strlen(buf)-1] = 0;
+ extract_token(sc_type, buf, 0, '|', sizeof sc_type);
+ extract_token(sc_node, buf, 1, '|', sizeof sc_node);
+ extract_token(sc_room, buf, 2, '|', sizeof sc_room);
+ if ( (!strcasecmp(sc_type, "ignet_push_share"))
+ && (!strcasecmp(sc_node, target_node)) ) {
+ found_node = 1;
+
+ /* Concise syntax because we don't need a full linked-list */
+ memset(&sc, 0, sizeof(struct SpoolControl));
+ sc.ignet_push_shares = (struct maplist *)
+ malloc(sizeof(struct maplist));
+ sc.ignet_push_shares->next = NULL;
+ safestrncpy(sc.ignet_push_shares->remote_nodename,
+ sc_node,
+ sizeof sc.ignet_push_shares->remote_nodename);
+ safestrncpy(sc.ignet_push_shares->remote_roomname,
+ sc_room,
+ sizeof sc.ignet_push_shares->remote_roomname);
+ }
+ }
+ fclose(fp);
+ end_critical_section(S_NETCONFIGS);
- lprintf(5, "Outbound batch processing finished for <%s>\n",
- CC->quickroom.QRname);
+ if (!found_node) return(-1);
+
+ /* Send ALL messages */
+ num_spooled = CtdlForEachMessage(MSGS_ALL, 0L, NULL, NULL,
+ network_spool_msg, &sc);
+
+ /* Concise cleanup because we know there's only one node in the sc */
+ free(sc.ignet_push_shares);
+
+ lprintf(CTDL_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;
+ char target_node[256];
+
+ if (CtdlAccessCheck(ac_aide)) return;
+
+ extract_token(target_node, argbuf, 0, '|', sizeof target_node);
+ num_spooled = network_sync_to(target_node);
+ 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);
+ }
+}
+
+
+
/*
* Batch up and send all outbound traffic from the current room
*/
-void network_queue_room(struct quickroom *qrbuf, void *data) {
+void network_queue_room(struct ctdlroom *qrbuf, void *data) {
struct RoomProcList *ptr;
- ptr = (struct RoomProcList *) mallok(sizeof (struct RoomProcList));
+ ptr = (struct RoomProcList *) malloc(sizeof (struct RoomProcList));
if (ptr == NULL) return;
safestrncpy(ptr->name, qrbuf->QRname, sizeof ptr->name);
* Learn topology from path fields
*/
void network_learn_topology(char *node, char *path) {
- char nexthop[SIZ];
+ char nexthop[256];
struct NetMap *nmptr;
strcpy(nexthop, "");
if (num_tokens(path, '!') < 3) return;
for (nmptr = the_netmap; nmptr != NULL; nmptr = nmptr->next) {
if (!strcasecmp(nmptr->nodename, node)) {
- extract_token(nmptr->nexthop, path, 0, '!');
+ extract_token(nmptr->nexthop, path, 0, '!', sizeof nmptr->nexthop);
nmptr->lastcontact = time(NULL);
+ ++netmap_changed;
return;
}
}
/* If we got here then it's not in the map, so add it. */
- nmptr = (struct NetMap *) mallok(sizeof (struct NetMap));
+ nmptr = (struct NetMap *) malloc(sizeof (struct NetMap));
strcpy(nmptr->nodename, node);
nmptr->lastcontact = time(NULL);
- extract_token(nmptr->nexthop, path, 0, '!');
+ extract_token(nmptr->nexthop, path, 0, '!', sizeof nmptr->nexthop);
nmptr->next = the_netmap;
the_netmap = nmptr;
+ ++netmap_changed;
+}
+
+
+
+
+/*
+ * Bounce a message back to the sender
+ */
+void network_bounce(struct CtdlMessage *msg, char *reason) {
+ char *oldpath = NULL;
+ char buf[SIZ];
+ char bouncesource[SIZ];
+ char recipient[SIZ];
+ struct recptypes *valid = NULL;
+ char force_room[ROOMNAMELEN];
+ static int serialnum = 0;
+ size_t size;
+
+ lprintf(CTDL_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
+ */
+ if (msg->cm_fields['I'] != NULL) {
+ free(msg->cm_fields['I']);
+ }
+ snprintf(buf, sizeof buf, "%ld.%04lx.%04x@%s",
+ (long)time(NULL), (long)getpid(), ++serialnum, config.c_fqdn);
+ msg->cm_fields['I'] = strdup(buf);
+
+ /*
+ * FIXME ... right now we're just sending a bounce; we really want to
+ * include the text of the bounced message.
+ */
+ if (msg->cm_fields['M'] != NULL) {
+ free(msg->cm_fields['M']);
+ }
+ msg->cm_fields['M'] = strdup(reason);
+ msg->cm_format_type = 0;
+
+ /*
+ * Turn the message around
+ */
+ if (msg->cm_fields['R'] == NULL) {
+ free(msg->cm_fields['R']);
+ }
+
+ if (msg->cm_fields['D'] == NULL) {
+ free(msg->cm_fields['D']);
+ }
+
+ snprintf(recipient, sizeof recipient, "%s@%s",
+ msg->cm_fields['A'], msg->cm_fields['N']);
+
+ if (msg->cm_fields['A'] == NULL) {
+ free(msg->cm_fields['A']);
+ }
+
+ if (msg->cm_fields['N'] == NULL) {
+ free(msg->cm_fields['N']);
+ }
+
+ if (msg->cm_fields['U'] == NULL) {
+ free(msg->cm_fields['U']);
+ }
+
+ msg->cm_fields['A'] = strdup(BOUNCESOURCE);
+ msg->cm_fields['N'] = strdup(config.c_nodename);
+ msg->cm_fields['U'] = strdup("Delivery Status Notification (Failure)");
+
+ /* prepend our node to the path */
+ if (msg->cm_fields['P'] != NULL) {
+ oldpath = msg->cm_fields['P'];
+ msg->cm_fields['P'] = NULL;
+ }
+ else {
+ oldpath = strdup("unknown_user");
+ }
+ size = strlen(oldpath) + SIZ;
+ msg->cm_fields['P'] = malloc(size);
+ snprintf(msg->cm_fields['P'], size, "%s!%s", config.c_nodename, oldpath);
+ free(oldpath);
+
+ /* Now submit the message */
+ valid = validate_recipients(recipient);
+ if (valid != NULL) if (valid->num_error > 0) {
+ free(valid);
+ valid = NULL;
+ }
+ if ( (valid == NULL) || (!strcasecmp(recipient, bouncesource)) ) {
+ strcpy(force_room, config.c_aideroom);
+ }
+ else {
+ strcpy(force_room, "");
+ }
+ if ( (valid == NULL) && (strlen(force_room) == 0) ) {
+ strcpy(force_room, config.c_aideroom);
+ }
+ CtdlSubmitMsg(msg, valid, NULL, NULL, force_room);
+
+ /* Clean up */
+ if (valid != NULL) free(valid);
+ CtdlFreeMessage(msg);
+ lprintf(CTDL_DEBUG, "leaving network_bounce()\n");
}
+
/*
* Process a buffer containing a single message from a single file
* from the inbound queue
struct CtdlMessage *msg;
long pos;
int field;
- int a;
- int e = MES_LOCAL;
- struct usersupp tempUS;
- char recp[SIZ];
+ struct recptypes *recp = NULL;
char target_room[ROOMNAMELEN];
struct ser_ret sermsg;
char *oldpath = NULL;
char filename[SIZ];
FILE *fp;
+ char nexthop[SIZ];
+ unsigned char firstbyte;
+ unsigned char lastbyte;
+
+ /* Validate just a little bit. First byte should be FF and
+ * last byte should be 00.
+ */
+ memcpy(&firstbyte, &buffer[0], 1);
+ memcpy(&lastbyte, &buffer[size-1], 1);
+ if ( (firstbyte != 255) || (lastbyte != 0) ) {
+ lprintf(CTDL_ERR, "Corrupt message! Ignoring.\n");
+ return;
+ }
/* Set default target room to trash */
strcpy(target_room, TWITROOM);
/* Load the message into memory */
- msg = (struct CtdlMessage *) mallok(sizeof(struct CtdlMessage));
- memset(msg, 0, sizeof(struct CtdlMessage));
- msg->cm_magic = CTDLMESSAGE_MAGIC;
- msg->cm_anon_type = buffer[1];
- msg->cm_format_type = buffer[2];
+ msg = (struct CtdlMessage *) malloc(sizeof(struct CtdlMessage));
+ memset(msg, 0, sizeof(struct CtdlMessage));
+ msg->cm_magic = CTDLMESSAGE_MAGIC;
+ msg->cm_anon_type = buffer[1];
+ msg->cm_format_type = buffer[2];
for (pos = 3; pos < size; ++pos) {
field = buffer[pos];
- msg->cm_fields[field] = strdoop(&buffer[pos+1]);
+ msg->cm_fields[field] = strdup(&buffer[pos+1]);
pos = pos + strlen(&buffer[(int)pos]);
}
if (strcasecmp(msg->cm_fields['D'], config.c_nodename)) {
/* route the message */
- if (is_valid_node(NULL, msg->cm_fields['D']) == 0) {
+ strcpy(nexthop, "");
+ if (is_valid_node(nexthop, NULL,
+ msg->cm_fields['D']) == 0) {
/* prepend our node to the path */
if (msg->cm_fields['P'] != NULL) {
msg->cm_fields['P'] = NULL;
}
else {
- oldpath = strdoop("unknown_user");
+ oldpath = strdup("unknown_user");
}
- msg->cm_fields['P'] =
- mallok(strlen(oldpath) + SIZ);
- sprintf(msg->cm_fields['P'], "%s!%s",
+ size = strlen(oldpath) + SIZ;
+ msg->cm_fields['P'] = malloc(size);
+ snprintf(msg->cm_fields['P'], size, "%s!%s",
config.c_nodename, oldpath);
- phree(oldpath);
+ free(oldpath);
/* serialize the message */
serialize_message(&sermsg, msg);
/* now send it */
- sprintf(filename,
- "./network/spoolout/%s",
- msg->cm_fields['D']);
+ if (strlen(nexthop) == 0) {
+ strcpy(nexthop, msg->cm_fields['D']);
+ }
+ snprintf(filename, sizeof filename,
+#ifndef HAVE_SPOOL_DIR
+ "."
+#else
+ SPOOL_DIR
+#endif /* HAVE_SPOOL_DIR */
+ "/network/spoolout/%s", nexthop);
+ lprintf(CTDL_DEBUG, "Appending to %s\n", filename);
fp = fopen(filename, "ab");
if (fp != NULL) {
fwrite(sermsg.ser,
sermsg.len, 1, fp);
fclose(fp);
}
- phree(sermsg.ser);
+ else {
+ lprintf(CTDL_ERR, "%s: %s\n", filename, strerror(errno));
+ }
+ free(sermsg.ser);
CtdlFreeMessage(msg);
return;
}
else { /* invalid destination node name */
- /* FIXME bounce the msg */
+ network_bounce(msg,
+"A message you sent could not be delivered due to an invalid destination node"
+" name. Please check the address and try sending the message again.\n");
+ msg = NULL;
+ return;
}
}
}
- /* FIXME check to see if we already have this message */
+ /*
+ * Check to see if we already have a copy of this message, and
+ * abort its processing if so. (We used to post a warning to Aide>
+ * every time this happened, but the network is now so densely
+ * connected that it's inevitable.)
+ */
+ if (network_usetable(msg) != 0) {
+ return;
+ }
/* Learn network topology from the path */
if ((msg->cm_fields['N'] != NULL) && (msg->cm_fields['P'] != NULL)) {
msg->cm_fields['P']);
}
- /* Does it have a recipient? If so, validate it... */
- if (msg->cm_fields['R'] != NULL) {
-
- safestrncpy(recp, msg->cm_fields['R'], sizeof(recp));
-
- e = alias(recp); /* alias and mail type */
- if ((recp[0] == 0) || (e == MES_ERROR)) {
-
- /* FIXME bounce the msg */
-
- }
- else if (e == MES_LOCAL) {
- a = getuser(&tempUS, recp);
- if (a != 0) {
- /* FIXME bounce the msg */
- }
- else {
- MailboxName(target_room, &tempUS, MAILROOM);
- }
- }
- }
-
- else if (msg->cm_fields['C'] != NULL) {
+ /* Is the sending node giving us a very persuasive suggestion about
+ * which room this message should be saved in? If so, go with that.
+ */
+ if (msg->cm_fields['C'] != NULL) {
safestrncpy(target_room,
msg->cm_fields['C'],
sizeof target_room);
}
+ /* Otherwise, does it have a recipient? If so, validate it... */
+ else if (msg->cm_fields['R'] != NULL) {
+ recp = validate_recipients(msg->cm_fields['R']);
+ if (recp != NULL) if (recp->num_error > 0) {
+ network_bounce(msg,
+"A message you sent could not be delivered due to an invalid address.\n"
+"Please check the address and try sending the message again.\n");
+ msg = NULL;
+ free(recp);
+ return;
+ }
+ strcpy(target_room, ""); /* no target room if mail */
+ }
+
+ /* Our last shot at finding a home for this message is to see if
+ * it has the O field (Originating room) set.
+ */
else if (msg->cm_fields['O'] != NULL) {
safestrncpy(target_room,
msg->cm_fields['O'],
sizeof target_room);
}
+ /* Strip out fields that are only relevant during transit */
+ if (msg->cm_fields['D'] != NULL) {
+ free(msg->cm_fields['D']);
+ msg->cm_fields['D'] = NULL;
+ }
+ if (msg->cm_fields['C'] != NULL) {
+ free(msg->cm_fields['C']);
+ msg->cm_fields['C'] = NULL;
+ }
+
/* save the message into a room */
- msg->cm_flags = CM_SKIP_HOOKS;
- CtdlSaveMsg(msg, "", target_room, 0);
+ if (PerformNetprocHooks(msg, target_room) == 0) {
+ msg->cm_flags = CM_SKIP_HOOKS;
+ CtdlSubmitMsg(msg, recp, NULL, NULL, target_room);
+ }
CtdlFreeMessage(msg);
+ free(recp);
}
hold_pos = ftell(fp);
size = msgend - msgstart + 1;
- buffer = mallok(size);
+ buffer = malloc(size);
if (buffer != NULL) {
fseek(fp, msgstart, SEEK_SET);
fread(buffer, size, 1, fp);
network_process_buffer(buffer, size);
- phree(buffer);
+ free(buffer);
}
fseek(fp, hold_pos, SEEK_SET);
long msgcur = 0L;
int ch;
- lprintf(7, "network: processing <%s>\n", filename);
fp = fopen(filename, "rb");
if (fp == NULL) {
- lprintf(5, "Error opening %s: %s\n",
+ lprintf(CTDL_CRIT, "Error opening %s: %s\n",
filename, strerror(errno));
return;
}
+ lprintf(CTDL_INFO, "network: processing <%s>\n", filename);
+
/* Look for messages in the data stream and break them out */
while (ch = getc(fp), ch >= 0) {
void network_do_spoolin(void) {
DIR *dp;
struct dirent *d;
- char filename[SIZ];
+ char filename[256];
+
+ dp = opendir(
+#ifndef HAVE_SPOOL_DIR
+ "."
+#else
+ SPOOL_DIR
+#endif /* HAVE_SPOOL_DIR */
+ "/network/spoolin");
+ if (dp == NULL) return;
+
+ while (d = readdir(dp), d != NULL) {
+ if ((strcmp(d->d_name, ".")) && (strcmp(d->d_name, ".."))) {
+ snprintf(filename, sizeof filename,
+#ifndef HAVE_SPOOL_DIR
+ "."
+#else
+ SPOOL_DIR
+#endif /* HAVE_SPOOL_DIR */
+ "/network/spoolin/%s", d->d_name);
+ network_process_file(filename);
+ }
+ }
+
+ closedir(dp);
+}
+
+/*
+ * Delete any files in the outbound queue that were intended
+ * to be sent to nodes which no longer exist.
+ */
+void network_purge_spoolout(void) {
+ DIR *dp;
+ struct dirent *d;
+ char filename[256];
+ char nexthop[256];
+ int i;
- dp = opendir("./network/spoolin");
+ dp = opendir(
+#ifndef HAVE_SPOOL_DIR
+ "."
+#else
+ SPOOL_DIR
+#endif /* HAVE_SPOOL_DIR */
+ "/network/spoolout");
if (dp == NULL) return;
while (d = readdir(dp), d != NULL) {
- sprintf(filename, "./network/spoolin/%s", d->d_name);
- network_process_file(filename);
+ if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
+ continue;
+ snprintf(filename, sizeof filename,
+#ifndef HAVE_SPOOL_DIR
+ "."
+#else
+ SPOOL_DIR
+#endif /* HAVE_SPOOL_DIR */
+ "/network/spoolout/%s", d->d_name);
+
+ strcpy(nexthop, "");
+ i = is_valid_node(nexthop, NULL, d->d_name);
+
+ if ( (i != 0) || (strlen(nexthop) > 0) ) {
+ unlink(filename);
+ }
}
}
+/*
+ * receive network spool from the remote system
+ */
+void receive_spool(int sock, char *remote_nodename) {
+ long download_len;
+ long bytes_received;
+ char buf[SIZ];
+ static char pbuf[IGNET_PACKET_SIZE];
+ char tempfilename[PATH_MAX];
+ long plen;
+ FILE *fp;
+
+ strcpy(tempfilename, tmpnam(NULL));
+ if (sock_puts(sock, "NDOP") < 0) return;
+ if (sock_gets(sock, buf) < 0) return;
+ lprintf(CTDL_DEBUG, "<%s\n", buf);
+ if (buf[0] != '2') {
+ return;
+ }
+ download_len = extract_long(&buf[4], 0);
+
+ bytes_received = 0L;
+ fp = fopen(tempfilename, "w");
+ if (fp == NULL) {
+ lprintf(CTDL_CRIT, "cannot open download file locally: %s\n",
+ strerror(errno));
+ return;
+ }
+
+ while (bytes_received < download_len) {
+ snprintf(buf, sizeof buf, "READ %ld|%ld",
+ bytes_received,
+ ((download_len - bytes_received > IGNET_PACKET_SIZE)
+ ? IGNET_PACKET_SIZE : (download_len - bytes_received)));
+ if (sock_puts(sock, buf) < 0) {
+ fclose(fp);
+ unlink(tempfilename);
+ return;
+ }
+ if (sock_gets(sock, buf) < 0) {
+ fclose(fp);
+ unlink(tempfilename);
+ return;
+ }
+ if (buf[0] == '6') {
+ plen = extract_long(&buf[4], 0);
+ if (sock_read(sock, pbuf, plen) < 0) {
+ fclose(fp);
+ unlink(tempfilename);
+ return;
+ }
+ fwrite((char *) pbuf, plen, 1, fp);
+ bytes_received = bytes_received + plen;
+ }
+ }
+
+ fclose(fp);
+ if (sock_puts(sock, "CLOS") < 0) {
+ unlink(tempfilename);
+ return;
+ }
+ if (sock_gets(sock, buf) < 0) {
+ unlink(tempfilename);
+ return;
+ }
+ if (download_len > 0)
+ lprintf(CTDL_NOTICE, "Received %ld octets from <%s>",
+ download_len, remote_nodename);
+ lprintf(CTDL_DEBUG, "%s", buf);
+ /* TODO: make move inline. forking is verry expensive. */
+ snprintf(buf, sizeof buf, "mv %s "
+#ifndef HAVE_SPOOL_DIR
+ "."
+#else
+ SPOOL_DIR
+#endif /* HAVE_SPOOL_DIR */
+ "/network/spoolin/%s.%ld",
+ tempfilename, remote_nodename, (long) getpid());
+ system(buf);
+}
+
+
+
+/*
+ * transmit network spool to the remote system
+ */
+void transmit_spool(int sock, char *remote_nodename)
+{
+ char buf[SIZ];
+ char pbuf[4096];
+ long plen;
+ long bytes_to_write, thisblock, bytes_written;
+ int fd;
+ char sfname[128];
+
+ if (sock_puts(sock, "NUOP") < 0) return;
+ if (sock_gets(sock, buf) < 0) return;
+ lprintf(CTDL_DEBUG, "<%s\n", buf);
+ if (buf[0] != '2') {
+ return;
+ }
+
+ snprintf(sfname, sizeof sfname,
+#ifndef HAVE_SPOOL_DIR
+ "."
+#else
+ SPOOL_DIR
+#endif /* HAVE_SPOOL_DIR */
+ "/network/spoolout/%s", remote_nodename);
+ fd = open(sfname, O_RDONLY);
+ if (fd < 0) {
+ if (errno != ENOENT) {
+ lprintf(CTDL_CRIT, "cannot open upload file locally: %s\n",
+ strerror(errno));
+ }
+ return;
+ }
+ bytes_written = 0;
+ while (plen = (long) read(fd, pbuf, IGNET_PACKET_SIZE), plen > 0L) {
+ bytes_to_write = plen;
+ while (bytes_to_write > 0L) {
+ snprintf(buf, sizeof buf, "WRIT %ld", bytes_to_write);
+ if (sock_puts(sock, buf) < 0) {
+ close(fd);
+ return;
+ }
+ if (sock_gets(sock, buf) < 0) {
+ close(fd);
+ return;
+ }
+ thisblock = atol(&buf[4]);
+ if (buf[0] == '7') {
+ if (sock_write(sock, pbuf,
+ (int) thisblock) < 0) {
+ close(fd);
+ return;
+ }
+ bytes_to_write -= thisblock;
+ bytes_written += thisblock;
+ } else {
+ goto ABORTUPL;
+ }
+ }
+ }
+
+ABORTUPL:
+ close(fd);
+ if (sock_puts(sock, "UCLS 1") < 0) return;
+ if (sock_gets(sock, buf) < 0) return;
+ lprintf(CTDL_NOTICE, "Sent %ld octets to <%s>\n",
+ bytes_written, remote_nodename);
+ lprintf(CTDL_DEBUG, "<%s\n", buf);
+ if (buf[0] == '2') {
+ lprintf(CTDL_DEBUG, "Removing <%s>\n", sfname);
+ unlink(sfname);
+ }
+}
+
+
+
+/*
+ * Poll one Citadel node (called by network_poll_other_citadel_nodes() below)
+ */
+void network_poll_node(char *node, char *secret, char *host, char *port) {
+ int sock;
+ char buf[SIZ];
+
+ if (network_talking_to(node, NTT_CHECK)) return;
+ network_talking_to(node, NTT_ADD);
+ lprintf(CTDL_NOTICE, "Connecting to <%s> at %s:%s\n", node, host, port);
+
+ sock = sock_connect(host, port, "tcp");
+ if (sock < 0) {
+ lprintf(CTDL_ERR, "Could not connect: %s\n", strerror(errno));
+ network_talking_to(node, NTT_REMOVE);
+ return;
+ }
+
+ lprintf(CTDL_DEBUG, "Connected!\n");
+
+ /* Read the server greeting */
+ if (sock_gets(sock, buf) < 0) goto bail;
+ lprintf(CTDL_DEBUG, ">%s\n", buf);
+
+ /* Identify ourselves */
+ snprintf(buf, sizeof buf, "NETP %s|%s", config.c_nodename, secret);
+ lprintf(CTDL_DEBUG, "<%s\n", buf);
+ if (sock_puts(sock, buf) <0) goto bail;
+ if (sock_gets(sock, buf) < 0) goto bail;
+ lprintf(CTDL_DEBUG, ">%s\n", buf);
+ if (buf[0] != '2') goto bail;
+
+ /* At this point we are authenticated. */
+ receive_spool(sock, node);
+ transmit_spool(sock, node);
+
+ sock_puts(sock, "QUIT");
+bail: sock_close(sock);
+ network_talking_to(node, NTT_REMOVE);
+}
+
+
+
+/*
+ * Poll other Citadel nodes and transfer inbound/outbound network data.
+ * Set "full" to nonzero to force a poll of every node, or to zero to poll
+ * only nodes to which we have data to send.
+ */
+void network_poll_other_citadel_nodes(int full_poll) {
+ int i;
+ char linebuf[256];
+ char node[SIZ];
+ char host[256];
+ char port[256];
+ char secret[256];
+ int poll = 0;
+ char spoolfile[256];
+
+ if (working_ignetcfg == NULL) {
+ lprintf(CTDL_DEBUG, "No nodes defined - not polling\n");
+ return;
+ }
+
+ /* Use the string tokenizer to grab one line at a time */
+ for (i=0; i<num_tokens(working_ignetcfg, '\n'); ++i) {
+ extract_token(linebuf, working_ignetcfg, i, '\n', sizeof linebuf);
+ extract_token(node, linebuf, 0, '|', sizeof node);
+ extract_token(secret, linebuf, 1, '|', sizeof secret);
+ extract_token(host, linebuf, 2, '|', sizeof host);
+ extract_token(port, linebuf, 3, '|', sizeof port);
+ if ( (strlen(node) > 0) && (strlen(secret) > 0)
+ && (strlen(host) > 0) && strlen(port) > 0) {
+ poll = full_poll;
+ if (poll == 0) {
+ snprintf(spoolfile, sizeof spoolfile,
+#ifndef HAVE_SPOOL_DIR
+ "."
+#else
+ SPOOL_DIR
+#endif
+ "/network/spoolout/%s", node);
+ if (access(spoolfile, R_OK) == 0) {
+ poll = 1;
+ }
+ }
+ if (poll) {
+ network_poll_node(node, secret, host, port);
+ }
+ }
+ }
+
+}
+
+
+
+
+/*
+ * It's ok if these directories already exist. Just fail silently.
+ */
+void create_spool_dirs(void) {
+#ifndef HAVE_SPOOL_DIR
+ mkdir("./network", 0700);
+ mkdir("./network/systems", 0700);
+ mkdir("./network/spoolin", 0700);
+ mkdir("./network/spoolout", 0700);
+#else
+ mkdir(SPOOL_DIR "/network", 0700);
+ mkdir(SPOOL_DIR "/network/systems", 0700);
+ mkdir(SPOOL_DIR "/network/spoolin", 0700);
+ mkdir(SPOOL_DIR "/network/spoolout", 0700);
+#endif /* HAVE_SPOOL_DIR */
+}
+
+
+
+
+
/*
* network_do_queue()
*
* Run through the rooms doing various types of network stuff.
*/
void network_do_queue(void) {
- static int doing_queue = 0;
static time_t last_run = 0L;
struct RoomProcList *ptr;
+ int full_processing = 1;
/*
- * Run no more frequently than once every n seconds
+ * Run the full set of processing tasks no more frequently
+ * than once every n seconds
*/
- if ( (time(NULL) - last_run) < NETWORK_QUEUE_FREQUENCY ) return;
+ if ( (time(NULL) - last_run) < config.c_net_freq ) {
+ full_processing = 0;
+ }
+
+ create_spool_dirs();
/*
* This is a simple concurrency check to make sure only one queue run
*/
if (doing_queue) return;
doing_queue = 1;
- last_run = time(NULL);
+ /* Load the IGnet Configuration into memory */
+ load_working_ignetcfg();
+
+ /*
+ * Poll other Citadel nodes. Maybe. If "full_processing" is set
+ * then we poll everyone. Otherwise we only poll nodes we have stuff
+ * to send to.
+ */
+ network_poll_other_citadel_nodes(full_processing);
+
+ /*
+ * Load the network map and filter list into memory.
+ */
read_network_map();
+ filterlist = load_filter_list();
/*
* Go ahead and run the queue
*/
- lprintf(7, "network: loading outbound queue\n");
- ForEachRoom(network_queue_room, NULL);
-
- lprintf(7, "network: running outbound queue\n");
- while (rplist != NULL) {
- network_spoolout_room(rplist->name);
- ptr = rplist;
- rplist = rplist->next;
- phree(ptr);
+ if (full_processing) {
+ lprintf(CTDL_DEBUG, "network: loading outbound queue\n");
+ ForEachRoom(network_queue_room, NULL);
+
+ lprintf(CTDL_DEBUG, "network: running outbound queue\n");
+ while (rplist != NULL) {
+ network_spoolout_room(rplist->name);
+ ptr = rplist;
+ rplist = rplist->next;
+ free(ptr);
+ }
}
- lprintf(7, "network: processing inbound queue\n");
+ lprintf(CTDL_DEBUG, "network: processing inbound queue\n");
network_do_spoolin();
+ /* Save the network map back to disk */
write_network_map();
- lprintf(7, "network: queue run completed\n");
+ /* Free the filter list in memory */
+ free_filter_list(filterlist);
+ filterlist = NULL;
+
+ network_purge_spoolout();
+
+ lprintf(CTDL_DEBUG, "network: queue run completed\n");
+
+ if (full_processing) {
+ last_run = time(NULL);
+ }
+
doing_queue = 0;
}
+/*
+ * cmd_netp() - authenticate to the server as another Citadel node polling
+ * for network traffic
+ */
+void cmd_netp(char *cmdbuf)
+{
+ char node[256];
+ char pass[256];
+ int v;
+
+ char secret[256];
+ char nexthop[256];
+
+ /* Authenticate */
+ extract_token(node, cmdbuf, 0, '|', sizeof node);
+ extract_token(pass, cmdbuf, 1, '|', sizeof pass);
+
+ if (doing_queue) {
+ lprintf(CTDL_WARNING, "Network node <%s> refused - spooling", node);
+ cprintf("%d spooling - try again in a few minutes\n",
+ ERROR + RESOURCE_BUSY);
+ return;
+ }
+
+ /* load the IGnet Configuration to check node validity */
+ load_working_ignetcfg();
+ v = is_valid_node(nexthop, secret, node);
+
+ if (v != 0) {
+ lprintf(CTDL_WARNING, "Unknown node <%s>\n", node);
+ cprintf("%d authentication failed\n",
+ ERROR + PASSWORD_REQUIRED);
+ return;
+ }
+
+ if (strcasecmp(pass, secret)) {
+ lprintf(CTDL_WARNING, "Bad password for network node <%s>", node);
+ cprintf("%d authentication failed\n", ERROR + PASSWORD_REQUIRED);
+ return;
+ }
+
+ if (network_talking_to(node, NTT_CHECK)) {
+ lprintf(CTDL_WARNING, "Duplicate session for network node <%s>", node);
+ cprintf("%d Already talking to %s right now\n", ERROR + RESOURCE_BUSY, node);
+ return;
+ }
+
+ safestrncpy(CC->net_node, node, sizeof CC->net_node);
+ network_talking_to(node, NTT_ADD);
+ lprintf(CTDL_NOTICE, "Network node <%s> logged in\n", CC->net_node);
+ cprintf("%d authenticated as network node '%s'\n", CIT_OK,
+ CC->net_node);
+}
+
/*
* Module entry point
*/
-char *Dynamic_Module_Init(void)
+char *serv_network_init(void)
{
+ create_spool_dirs();
CtdlRegisterProtoHook(cmd_gnet, "GNET", "Get network config");
- CtdlRegisterProtoHook(cmd_snet, "SNET", "Get network config");
+ CtdlRegisterProtoHook(cmd_snet, "SNET", "Set network config");
+ CtdlRegisterProtoHook(cmd_netp, "NETP", "Identify as network poller");
+ CtdlRegisterProtoHook(cmd_nsyn, "NSYN", "Synchronize room to node");
CtdlRegisterSessionHook(network_do_queue, EVT_TIMER);
return "$Id$";
}
projects / citadel.git / blobdiff