2 * This module delivers messages to mailing lists.
4 * Copyright (c) 2002-2021 by the citadel.org team
6 * This program is open source software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 3.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
24 #include <sys/types.h>
30 #include <libcitadel.h>
33 #include "citserver.h"
39 #include "internet_addressing.h"
40 #include "clientsocket.h"
41 #include "ctdl_module.h"
43 int doing_listdeliver = 0;
46 // data passed back and forth between listdeliver_do_msg() and listdeliver_sweep_room()
48 long msgnum; // number of most recent message processed
49 char *netconf; // netconfig for this room (contains the recipients)
54 void listdeliver_do_msg(long msgnum, void *userdata) {
55 struct lddata *ld = (struct lddata *) userdata;
60 if (msgnum <= 0) return;
62 struct CtdlMessage *TheMessage = CtdlFetchMessage(msgnum, 1);
63 if (!TheMessage) return;
67 // FIXME munge the headers so it looks like it came from a mailing list
71 char *recipients = malloc(strlen(ld->netconf));
75 int config_lines = num_tokens(ld->netconf, '\n');
76 for (int i=0; i<config_lines; ++i) {
77 extract_token(buf, ld->netconf, i, '\n', sizeof buf);
78 if (!strncasecmp(buf, "listrecp|", 9)) {
79 if (recipients[0] != 0) {
80 strcat(recipients, ",");
82 strcat(recipients, &buf[9]);
84 if (!strncasecmp(buf, "digestrecp|", 11)) {
85 if (recipients[0] != 0) {
86 strcat(recipients, ",");
88 strcat(recipients, &buf[11]);
91 syslog(LOG_DEBUG, "\033[33m%s\033[0m", recipients);
92 struct recptypes *valid = validate_recipients(recipients, NULL, 0);
94 long new_msgnum = CtdlSubmitMsg(TheMessage, valid, "");
95 free_recipients(valid);
103 * Sweep through one room looking for mailing list deliveries to do
105 void listdeliver_sweep_room(char *roomname) {
106 char *netconfig = NULL;
107 char *newnetconfig = NULL;
112 int number_of_messages_processed = 0;
113 int number_of_recipients = 0;
116 if (CtdlGetRoom(&CC->room, roomname)) {
117 syslog(LOG_DEBUG, "listdeliver: no room <%s>", roomname);
121 netconfig = LoadRoomNetConfigFile(CC->room.QRnumber);
123 return; // no netconfig, no processing, no problem
126 syslog(LOG_DEBUG, "listdeliver: sweeping %s", roomname);
128 config_lines = num_tokens(netconfig, '\n');
129 for (i=0; i<config_lines; ++i) {
130 extract_token(buf, netconfig, i, '\n', sizeof buf);
132 if (!strncasecmp(buf, "lastsent|", 9)) {
133 lastsent = atol(&buf[9]);
135 else if ( (!strncasecmp(buf, "listrecp|", 9)) || (!strncasecmp(buf, "digestrecp|", 11)) ) {
136 ++number_of_recipients;
140 if (number_of_recipients > 0) {
141 syslog(LOG_DEBUG, "listdeliver: processing new messages in <%s> for <%d> recipients", CC->room.QRname, number_of_recipients);
142 ld.netconf = netconfig;
143 number_of_messages_processed = CtdlForEachMessage(MSGS_GT, lastsent, NULL, NULL, NULL, listdeliver_do_msg, &ld);
144 syslog(LOG_DEBUG, "listdeliver: processed %d messages", number_of_messages_processed);
146 if (number_of_messages_processed > 0) {
147 syslog(LOG_DEBUG, "listdeliver: new lastsent is %ld", ld.msgnum);
149 // Update this room's netconfig with the updated lastsent
150 netconfig = LoadRoomNetConfigFile(CC->room.QRnumber);
152 netconfig = strdup("");
155 // The new netconfig begins with the new lastsent directive
156 newnetconfig = malloc(strlen(netconfig) + 1024);
157 sprintf(newnetconfig, "lastsent|%ld\n", ld.msgnum);
159 // And then we append all of the old netconfig, minus the old lastsent. Also omit blank lines.
160 config_lines = num_tokens(netconfig, '\n');
161 for (i=0; i<config_lines; ++i) {
162 extract_token(buf, netconfig, i, '\n', sizeof buf);
163 if ( (!IsEmptyStr(buf)) && (strncasecmp(buf, "lastsent|", 9)) ) {
164 sprintf(&newnetconfig[strlen(newnetconfig)], "%s\n", buf);
168 // Write the new netconfig back to disk
169 SaveRoomNetConfigFile(CC->room.QRnumber, newnetconfig);
178 * Callback for listdeliver_sweep()
179 * Adds one room to the queue
181 void listdeliver_queue_room(struct ctdlroom *qrbuf, void *data) {
182 Array *roomlistarr = (Array *)data;
183 array_append(roomlistarr, qrbuf->QRname);
188 * Queue up the list of rooms so we can sweep them for mailing list delivery instructions
190 void listdeliver_sweep(void) {
191 static time_t last_run = 0L;
195 * Run mailing list delivery no more frequently than once every 15 minutes (we should make this configurable)
197 if ( (time(NULL) - last_run) < 900 ) {
202 * This is a simple concurrency check to make sure only one listdeliver
203 * run is done at a time. We could do this with a mutex, but since we
204 * don't really require extremely fine granularity here, we'll do it
205 * with a static variable instead.
207 if (doing_listdeliver) return;
208 doing_listdeliver = 1;
211 * Go through each room looking for mailing lists to process
213 syslog(LOG_DEBUG, "listdeliver: sweep started");
215 Array *roomlistarr = array_new(ROOMNAMELEN); // we have to queue them
216 CtdlForEachRoom(listdeliver_queue_room, roomlistarr); // otherwise we get multiple cursors in progress
218 for (i=0; i<array_len(roomlistarr); ++i) {
219 listdeliver_sweep_room((char *)array_get_element_at(roomlistarr, i));
222 array_free(roomlistarr);
223 syslog(LOG_DEBUG, "listdeliver: ended");
224 last_run = time(NULL);
225 doing_listdeliver = 0;
235 CTDL_MODULE_INIT(listdeliver)
239 CtdlRegisterSessionHook(listdeliver_sweep, EVT_TIMER, PRIO_AGGR + 50);
242 /* return our module name for the log */