+++ /dev/null
-/*
- * $Id$
- *
- * Citadel Dynamic Loading Module
- * Written by Brian Costello <btx@calyx.net>
- *
- */
-
-#include "sysdep.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <sys/types.h>
-#include <dirent.h>
-#include <string.h>
-#include <syslog.h>
-#include <limits.h>
-#include <ctype.h>
-#include "citadel.h"
-#include "server.h"
-#include "serv_extensions.h"
-#include "sysdep_decls.h"
-#include "msgbase.h"
-#include "tools.h"
-#include "config.h"
-
-#ifndef HAVE_SNPRINTF
-#include <stdarg.h>
-#include "snprintf.h"
-#endif
-
-struct LogFunctionHook *LogHookTable = NULL;
-struct CleanupFunctionHook *CleanupHookTable = NULL;
-struct SessionFunctionHook *SessionHookTable = NULL;
-struct UserFunctionHook *UserHookTable = NULL;
-struct XmsgFunctionHook *XmsgHookTable = NULL;
-struct MessageFunctionHook *MessageHookTable = NULL;
-struct NetprocFunctionHook *NetprocHookTable = NULL;
-struct DeleteFunctionHook *DeleteHookTable = NULL;
-struct ServiceFunctionHook *ServiceHookTable = NULL;
-
-struct ProtoFunctionHook {
- void (*handler) (char *cmdbuf);
- char *cmd;
- char *desc;
- struct ProtoFunctionHook *next;
-} *ProtoHookList = NULL;
-
-void CtdlRegisterProtoHook(void (*handler) (char *), char *cmd, char *desc)
-{
- struct ProtoFunctionHook *p;
-
- p = (struct ProtoFunctionHook *)
- mallok(sizeof(struct ProtoFunctionHook));
-
- if (p == NULL) {
- fprintf(stderr, "can't malloc new ProtoFunctionHook\n");
- exit(EXIT_FAILURE);
- }
- p->handler = handler;
- p->cmd = cmd;
- p->desc = desc;
- p->next = ProtoHookList;
- ProtoHookList = p;
- lprintf(5, "Registered server command %s (%s)\n", cmd, desc);
-}
-
-
-void CtdlUnregisterProtoHook(void (*handler) (char *), char *cmd)
-{
- struct ProtoFunctionHook *cur, *p;
-
- for (cur = ProtoHookList; cur != NULL; cur = cur->next) {
- /* This will also remove duplicates if any */
- while (cur != NULL &&
- handler == cur->handler &&
- !strcmp(cmd, cur->cmd)) {
- lprintf(5, "Unregistered server command %s (%s)\n",
- cmd, cur->desc);
- p = cur->next;
- if (cur == ProtoHookList) {
- ProtoHookList = p;
- }
- phree(cur);
- cur = p;
- }
- }
-}
-
-
-int DLoader_Exec_Cmd(char *cmdbuf)
-{
- struct ProtoFunctionHook *p;
-
- for (p = ProtoHookList; p; p = p->next) {
- if (!strncasecmp(cmdbuf, p->cmd, 4)) {
- p->handler(&cmdbuf[5]);
- return 1;
- }
- }
- return 0;
-}
-
-void initialize_server_extensions(void)
-{
- serv_bio_init();
- serv_calendar_init();
- serv_inithat_init();
- serv_expire_init();
- serv_imap_init();
- serv_inetcfg_init();
- serv_listsub_init();
- serv_mrtg_init();
- serv_netfilter_init();
- serv_network_init();
- serv_newuser_init();
- serv_pas2_init();
- serv_pop3_init();
- serv_rwho_init();
- serv_smtp_init();
- serv_spam_init();
- /* serv_test_init(); */
- serv_upgrade_init();
- serv_vandelay_init();
- serv_vcard_init();
-}
-
-
-
-void CtdlRegisterLogHook(void (*fcn_ptr) (char *), int loglevel)
-{
-
- struct LogFunctionHook *newfcn;
-
- newfcn = (struct LogFunctionHook *)
- mallok(sizeof(struct LogFunctionHook));
- newfcn->next = LogHookTable;
- newfcn->h_function_pointer = fcn_ptr;
- newfcn->loglevel = loglevel;
- LogHookTable = newfcn;
-
- lprintf(5, "Registered a new logging function\n");
-}
-
-
-void CtdlUnregisterLogHook(void (*fcn_ptr) (char *), int loglevel)
-{
- struct LogFunctionHook *cur, *p;
-
- for (cur = LogHookTable; cur != NULL; cur = cur->next) {
- /* This will also remove duplicates if any */
- while (cur != NULL &&
- fcn_ptr == cur->h_function_pointer &&
- loglevel == cur->loglevel) {
- lprintf(5, "Unregistered logging function\n");
- p = cur->next;
- if (cur == LogHookTable) {
- LogHookTable = p;
- }
- phree(cur);
- cur = p;
- }
- }
-}
-
-
-void CtdlRegisterCleanupHook(void (*fcn_ptr) (void))
-{
-
- struct CleanupFunctionHook *newfcn;
-
- newfcn = (struct CleanupFunctionHook *)
- mallok(sizeof(struct CleanupFunctionHook));
- newfcn->next = CleanupHookTable;
- newfcn->h_function_pointer = fcn_ptr;
- CleanupHookTable = newfcn;
-
- lprintf(5, "Registered a new cleanup function\n");
-}
-
-
-void CtdlUnregisterCleanupHook(void (*fcn_ptr) (void))
-{
- struct CleanupFunctionHook *cur, *p;
-
- for (cur = CleanupHookTable; cur != NULL; cur = cur->next) {
- /* This will also remove duplicates if any */
- while (cur != NULL &&
- fcn_ptr == cur->h_function_pointer) {
- lprintf(5, "Unregistered cleanup function\n");
- p = cur->next;
- if (cur == CleanupHookTable) {
- CleanupHookTable = p;
- }
- phree(cur);
- cur = p;
- }
- }
-}
-
-
-void CtdlRegisterSessionHook(void (*fcn_ptr) (void), int EventType)
-{
-
- struct SessionFunctionHook *newfcn;
-
- newfcn = (struct SessionFunctionHook *)
- mallok(sizeof(struct SessionFunctionHook));
- newfcn->next = SessionHookTable;
- newfcn->h_function_pointer = fcn_ptr;
- newfcn->eventtype = EventType;
- SessionHookTable = newfcn;
-
- lprintf(5, "Registered a new session function (type %d)\n",
- EventType);
-}
-
-
-void CtdlUnregisterSessionHook(void (*fcn_ptr) (void), int EventType)
-{
- struct SessionFunctionHook *cur, *p;
-
- for (cur = SessionHookTable; cur != NULL; cur = cur->next) {
- /* This will also remove duplicates if any */
- while (cur != NULL &&
- fcn_ptr == cur->h_function_pointer &&
- EventType == cur->eventtype) {
- lprintf(5, "Unregistered session function (type %d)\n",
- EventType);
- p = cur->next;
- if (cur == SessionHookTable) {
- SessionHookTable = p;
- }
- phree(cur);
- cur = p;
- }
- }
-}
-
-
-void CtdlRegisterUserHook(void (*fcn_ptr) (char *, long), int EventType)
-{
-
- struct UserFunctionHook *newfcn;
-
- newfcn = (struct UserFunctionHook *)
- mallok(sizeof(struct UserFunctionHook));
- newfcn->next = UserHookTable;
- newfcn->h_function_pointer = fcn_ptr;
- newfcn->eventtype = EventType;
- UserHookTable = newfcn;
-
- lprintf(5, "Registered a new user function (type %d)\n",
- EventType);
-}
-
-
-void CtdlUnregisterUserHook(void (*fcn_ptr) (char *, long), int EventType)
-{
- struct UserFunctionHook *cur, *p;
-
- for (cur = UserHookTable; cur != NULL; cur = cur->next) {
- /* This will also remove duplicates if any */
- while (cur != NULL &&
- fcn_ptr == cur->h_function_pointer &&
- EventType == cur->eventtype) {
- lprintf(5, "Unregistered user function (type %d)\n",
- EventType);
- p = cur->next;
- if (cur == UserHookTable) {
- UserHookTable = p;
- }
- phree(cur);
- cur = p;
- }
- }
-}
-
-
-void CtdlRegisterMessageHook(int (*handler)(struct CtdlMessage *),
- int EventType)
-{
-
- struct MessageFunctionHook *newfcn;
-
- newfcn = (struct MessageFunctionHook *)
- mallok(sizeof(struct MessageFunctionHook));
- newfcn->next = MessageHookTable;
- newfcn->h_function_pointer = handler;
- newfcn->eventtype = EventType;
- MessageHookTable = newfcn;
-
- lprintf(5, "Registered a new message function (type %d)\n",
- EventType);
-}
-
-
-void CtdlUnregisterMessageHook(int (*handler)(struct CtdlMessage *),
- int EventType)
-{
- struct MessageFunctionHook *cur, *p;
-
- for (cur = MessageHookTable; cur != NULL; cur = cur->next) {
- /* This will also remove duplicates if any */
- while (cur != NULL &&
- handler == cur->h_function_pointer &&
- EventType == cur->eventtype) {
- lprintf(5, "Unregistered message function (type %d)\n",
- EventType);
- p = cur->next;
- if (cur == MessageHookTable) {
- MessageHookTable = p;
- }
- phree(cur);
- cur = p;
- }
- }
-}
-
-
-void CtdlRegisterNetprocHook(int (*handler)(struct CtdlMessage *, char *) )
-{
- struct NetprocFunctionHook *newfcn;
-
- newfcn = (struct NetprocFunctionHook *)
- mallok(sizeof(struct NetprocFunctionHook));
- newfcn->next = NetprocHookTable;
- newfcn->h_function_pointer = handler;
- NetprocHookTable = newfcn;
-
- lprintf(5, "Registered a new netproc function\n");
-}
-
-
-void CtdlUnregisterNetprocHook(int (*handler)(struct CtdlMessage *, char *) )
-{
- struct NetprocFunctionHook *cur, *p;
-
- for (cur = NetprocHookTable; cur != NULL; cur = cur->next) {
- /* This will also remove duplicates if any */
- while (cur != NULL &&
- handler == cur->h_function_pointer ) {
- lprintf(5, "Unregistered netproc function\n");
- p = cur->next;
- if (cur == NetprocHookTable) {
- NetprocHookTable = p;
- }
- phree(cur);
- cur = p;
- }
- }
-}
-
-
-void CtdlRegisterDeleteHook(void (*handler)(char *, long) )
-{
- struct DeleteFunctionHook *newfcn;
-
- newfcn = (struct DeleteFunctionHook *)
- mallok(sizeof(struct DeleteFunctionHook));
- newfcn->next = DeleteHookTable;
- newfcn->h_function_pointer = handler;
- DeleteHookTable = newfcn;
-
- lprintf(5, "Registered a new netproc function\n");
-}
-
-
-void CtdlUnregisterDeleteHook(void (*handler)(char *, long) )
-{
- struct DeleteFunctionHook *cur, *p;
-
- for (cur = DeleteHookTable; cur != NULL; cur = cur->next) {
- /* This will also remove duplicates if any */
- while (cur != NULL &&
- handler == cur->h_function_pointer ) {
- lprintf(5, "Unregistered netproc function\n");
- p = cur->next;
- if (cur == DeleteHookTable) {
- DeleteHookTable = p;
- }
- phree(cur);
- cur = p;
- }
- }
-}
-
-
-void CtdlRegisterXmsgHook(int (*fcn_ptr) (char *, char *, char *), int order)
-{
-
- struct XmsgFunctionHook *newfcn;
-
- newfcn = (struct XmsgFunctionHook *)
- mallok(sizeof(struct XmsgFunctionHook));
- newfcn->next = XmsgHookTable;
- newfcn->order = order;
- newfcn->h_function_pointer = fcn_ptr;
- XmsgHookTable = newfcn;
- lprintf(5, "Registered a new x-msg function (priority %d)\n", order);
-}
-
-
-void CtdlUnregisterXmsgHook(int (*fcn_ptr) (char *, char *, char *), int order)
-{
- struct XmsgFunctionHook *cur, *p;
-
- for (cur = XmsgHookTable; cur != NULL; cur = cur->next) {
- /* This will also remove duplicates if any */
- while (cur != NULL &&
- fcn_ptr == cur->h_function_pointer &&
- order == cur->order) {
- lprintf(5, "Unregistered x-msg function "
- "(priority %d)\n", order);
- p = cur->next;
- if (cur == XmsgHookTable) {
- XmsgHookTable = p;
- }
- phree(cur);
- cur = p;
- }
- }
-}
-
-
-void CtdlRegisterServiceHook(int tcp_port,
- char *sockpath,
- void (*h_greeting_function) (void),
- void (*h_command_function) (void) )
-{
- struct ServiceFunctionHook *newfcn;
- char message[SIZ];
-
- newfcn = (struct ServiceFunctionHook *)
- mallok(sizeof(struct ServiceFunctionHook));
- newfcn->next = ServiceHookTable;
- newfcn->tcp_port = tcp_port;
- newfcn->sockpath = sockpath;
- newfcn->h_greeting_function = h_greeting_function;
- newfcn->h_command_function = h_command_function;
-
- if (sockpath != NULL) {
- newfcn->msock = ig_uds_server(sockpath, config.c_maxsessions);
- snprintf(message, sizeof message, "Unix domain socket '%s': ", sockpath);
- }
- else if (tcp_port <= 0) { /* port -1 to disable */
- lprintf(7, "Service has been manually disabled, skipping\n");
- phree(newfcn);
- return;
- }
- else {
- newfcn->msock = ig_tcp_server(tcp_port, config.c_maxsessions);
- snprintf(message, sizeof message, "TCP port %d: ", tcp_port);
- }
-
- if (newfcn->msock > 0) {
- ServiceHookTable = newfcn;
- strcat(message, "registered.");
- lprintf(5, "%s\n", message);
- }
- else {
- strcat(message, "FAILED.");
- lprintf(2, "%s\n", message);
- phree(newfcn);
- }
-}
-
-
-void CtdlUnregisterServiceHook(int tcp_port, char *sockpath,
- void (*h_greeting_function) (void),
- void (*h_command_function) (void) )
-{
- struct ServiceFunctionHook *cur, *p;
-
- for (cur = ServiceHookTable; cur != NULL; cur = cur->next) {
- /* This will also remove duplicates if any */
- while (cur != NULL &&
- !(sockpath && cur->sockpath &&
- strcmp(sockpath, cur->sockpath)) &&
- h_greeting_function == cur->h_greeting_function &&
- h_command_function == cur->h_command_function &&
- tcp_port == cur->tcp_port) {
- close(cur->msock);
- if (sockpath) {
- lprintf(5, "Closed UNIX domain socket %s\n",
- sockpath);
- } else if (tcp_port) {
- lprintf(5, "Closed TCP port %d\n", tcp_port);
- } else {
- lprintf(5, "Unregistered unknown service\n");
- }
- p = cur->next;
- if (cur == ServiceHookTable) {
- ServiceHookTable = p;
- }
- phree(cur);
- cur = p;
- }
- }
-}
-
-
-void PerformSessionHooks(int EventType)
-{
- struct SessionFunctionHook *fcn;
-
- for (fcn = SessionHookTable; fcn != NULL; fcn = fcn->next) {
- if (fcn->eventtype == EventType) {
- (*fcn->h_function_pointer) ();
- }
- }
-}
-
-void PerformLogHooks(int loglevel, char *logmsg)
-{
- struct LogFunctionHook *fcn;
-
- for (fcn = LogHookTable; fcn != NULL; fcn = fcn->next) {
- if (fcn->loglevel >= loglevel) {
- (*fcn->h_function_pointer) (logmsg);
- }
- }
-}
-
-void PerformUserHooks(char *username, long usernum, int EventType)
-{
- struct UserFunctionHook *fcn;
-
- for (fcn = UserHookTable; fcn != NULL; fcn = fcn->next) {
- if (fcn->eventtype == EventType) {
- (*fcn->h_function_pointer) (username, usernum);
- }
- }
-}
-
-int PerformMessageHooks(struct CtdlMessage *msg, int EventType)
-{
- struct MessageFunctionHook *fcn;
- int total_retval = 0;
-
- /* Other code may elect to protect this message from server-side
- * handlers; if this is the case, don't do anything.
- lprintf(9, "** Event type is %d, flags are %d\n",
- EventType, msg->cm_flags);
- */
- if (msg->cm_flags & CM_SKIP_HOOKS) {
- lprintf(9, "Skipping hooks\n");
- return(0);
- }
-
- /* Otherwise, run all the hooks appropriate to this event type.
- */
- for (fcn = MessageHookTable; fcn != NULL; fcn = fcn->next) {
- if (fcn->eventtype == EventType) {
- total_retval = total_retval +
- (*fcn->h_function_pointer) (msg);
- }
- }
-
- /* Return the sum of the return codes from the hook functions. If
- * this is an EVT_BEFORESAVE event, a nonzero return code will cause
- * the save operation to abort.
- */
- return total_retval;
-}
-
-
-
-int PerformNetprocHooks(struct CtdlMessage *msg, char *target_room)
-{
- struct NetprocFunctionHook *fcn;
- int total_retval = 0;
-
- for (fcn = NetprocHookTable; fcn != NULL; fcn = fcn->next) {
- total_retval = total_retval +
- (*fcn->h_function_pointer) (msg, target_room);
- }
-
- /* Return the sum of the return codes from the hook functions.
- * A nonzero return code will cause the message to *not* be imported.
- */
- return total_retval;
-}
-
-
-void PerformDeleteHooks(char *room, long msgnum)
-{
- struct DeleteFunctionHook *fcn;
-
- for (fcn = DeleteHookTable; fcn != NULL; fcn = fcn->next) {
- (*fcn->h_function_pointer) (room, msgnum);
- }
-}
-
-
-
-int PerformXmsgHooks(char *sender, char *recp, char *msg)
-{
- struct XmsgFunctionHook *fcn;
- int total_sent = 0;
- int p;
-
- for (p=0; p<MAX_XMSG_PRI; ++p) {
- for (fcn = XmsgHookTable; fcn != NULL; fcn = fcn->next) {
- if (fcn->order == p) {
- total_sent +=
- (*fcn->h_function_pointer)
- (sender, recp, msg);
- }
- }
- /* Break out of the loop if a higher-priority function
- * successfully delivered the message. This prevents duplicate
- * deliveries to local users simultaneously signed onto
- * remote services.
- */
- if (total_sent) break;
- }
- return total_sent;
-}
projects / citadel.git / blobdiff