+++ /dev/null
-/*
- * Citadel Extension Loader
- * Originally written by Brian Costello <btx@calyx.net>
- *
- * Copyright (c) 1987-2017 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 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.
- */
-
-#include <stdlib.h>
-#include <unistd.h>
-#include <stdio.h>
-#include <sys/stat.h>
-#include <libcitadel.h>
-#include "sysdep_decls.h"
-#include "modules/crypto/serv_crypto.h" /* Needed until a universal crypto startup hook is implimented for CtdlStartTLS */
-#include "serv_extensions.h"
-#include "ctdl_module.h"
-#include "config.h"
-
-
-/*
- * Structure defentitions for hook tables
- */
-
-typedef struct FixedOutputHook FixedOutputHook;
-struct FixedOutputHook {
- FixedOutputHook *next;
- char content_type[64];
- void (*h_function_pointer) (char *, int);
-};
-FixedOutputHook *FixedOutputTable = NULL;
-
-
-/*
- * SessionFunctionHook extensions are used for any type of hook for which
- * the context in which it's being called (which is determined by the event
- * type) will make it obvious for the hook function to know where to look for
- * pertinent data.
- */
-typedef struct SessionFunctionHook SessionFunctionHook;
-struct SessionFunctionHook {
- SessionFunctionHook *next;
- int Priority;
- void (*h_function_pointer) (void);
- int eventtype;
-};
-SessionFunctionHook *SessionHookTable = NULL;
-
-
-/*
- * UserFunctionHook extensions are used for any type of hook which implements
- * an operation on a user or username (potentially) other than the one
- * operating the current session.
- */
-typedef struct UserFunctionHook UserFunctionHook;
-struct UserFunctionHook {
- UserFunctionHook *next;
- void (*h_function_pointer) (struct ctdluser *usbuf);
- int eventtype;
-};
-UserFunctionHook *UserHookTable = NULL;
-
-
-/*
- * MessageFunctionHook extensions are used for hooks which implement handlers
- * for various types of message operations (save, read, etc.)
- */
-typedef struct MessageFunctionHook MessageFunctionHook;
-struct MessageFunctionHook {
- MessageFunctionHook *next;
- int (*h_function_pointer) (struct CtdlMessage *msg, recptypes *recps);
- int eventtype;
-};
-MessageFunctionHook *MessageHookTable = NULL;
-
-
-/*
- * NetprocFunctionHook extensions are used for hooks which implement handlers
- * for incoming network messages.
- */
-typedef struct NetprocFunctionHook NetprocFunctionHook;
-struct NetprocFunctionHook {
- NetprocFunctionHook *next;
- int (*h_function_pointer) (struct CtdlMessage *msg, char *target_room);
-};
-NetprocFunctionHook *NetprocHookTable = NULL;
-
-
-/*
- * DeleteFunctionHook extensions are used for hooks which get called when a
- * message is about to be deleted.
- */
-typedef struct DeleteFunctionHook DeleteFunctionHook;
-struct DeleteFunctionHook {
- DeleteFunctionHook *next;
- void (*h_function_pointer) (char *target_room, long msgnum);
-};
-DeleteFunctionHook *DeleteHookTable = NULL;
-
-
-/*
- * ExpressMessageFunctionHook extensions are used for hooks which implement
- * the sending of an instant message through various channels. Any function
- * registered should return the number of recipients to whom the message was
- * successfully transmitted.
- */
-typedef struct XmsgFunctionHook XmsgFunctionHook;
-struct XmsgFunctionHook {
- XmsgFunctionHook *next;
- int (*h_function_pointer) (char *, char *, char *, char *);
- int order;
-};
-XmsgFunctionHook *XmsgHookTable = NULL;
-
-
-/*
- * RoomFunctionHook extensions are used for hooks which impliment room
- * processing functions when new messages are added EG. SIEVE.
- */
-typedef struct RoomFunctionHook RoomFunctionHook;
-struct RoomFunctionHook {
- RoomFunctionHook *next;
- int (*fcn_ptr) (struct ctdlroom *);
-};
-RoomFunctionHook *RoomHookTable = NULL;
-
-
-typedef struct SearchFunctionHook SearchFunctionHook;
-struct SearchFunctionHook {
- SearchFunctionHook *next;
- void (*fcn_ptr) (int *, long **, const char *);
- char *name;
-};
-SearchFunctionHook *SearchFunctionHookTable = NULL;
-
-CleanupFunctionHook *CleanupHookTable = NULL;
-CleanupFunctionHook *EVCleanupHookTable = NULL;
-
-ServiceFunctionHook *ServiceHookTable = NULL;
-
-typedef struct ProtoFunctionHook ProtoFunctionHook;
-struct ProtoFunctionHook {
- void (*handler) (char *cmdbuf);
- const char *cmd;
- const char *desc;
-};
-
-HashList *ProtoHookList = NULL;
-
-
-#define ERR_PORT (1 << 1)
-
-
-static StrBuf *portlist = NULL;
-
-static StrBuf *errormessages = NULL;
-
-
-long DetailErrorFlags;
-ConstStr Empty = {HKEY("")};
-char *ErrSubject = "Startup Problems";
-ConstStr ErrGeneral[] = {
- {HKEY("Citadel had trouble on starting up. ")},
- {HKEY(" This means, Citadel won't be the service provider for a specific service you configured it to.\n\n"
- "If you don't want Citadel to provide these services, turn them off in WebCit via: ")},
- {HKEY("To make both ways actualy take place restart the citserver with \"sendcommand down\"\n\n"
- "The errors returned by the system were:\n")},
- {HKEY("You can recheck the above if you follow this faq item:\n"
- "http://www.citadel.org/doku.php?id=faq:mastering_your_os:net#netstat")}
-};
-
-ConstStr ErrPortShort = { HKEY("We couldn't bind all ports you configured to be provided by Citadel Server.\n")};
-ConstStr ErrPortWhere = { HKEY("\"Admin->System Preferences->Network\".\n\nThe failed ports and sockets are: ")};
-ConstStr ErrPortHint = { HKEY("If you want Citadel to provide you with that functionality, "
- "check the output of \"netstat -lnp\" on Linux, or \"netstat -na\" on BSD"
- " and stop the program that binds these ports.\n You should eventually remove "
- " their initscripts in /etc/init.d so that you won't get this trouble once more.\n"
- " After that goto \"Administration -> Shutdown Citadel\" to make Citadel restart & retry to bind this port.\n")};
-
-
-void LogPrintMessages(long err)
-{
- StrBuf *Message;
- StrBuf *List, *DetailList;
- ConstStr *Short, *Where, *Hint;
-
-
- Message = NewStrBufPlain(NULL, StrLength(portlist) + StrLength(errormessages));
-
- DetailErrorFlags = DetailErrorFlags & ~err;
-
- switch (err)
- {
- case ERR_PORT:
- Short = &ErrPortShort;
- Where = &ErrPortWhere;
- Hint = &ErrPortHint;
- List = portlist;
- DetailList = errormessages;
- break;
- default:
- Short = &Empty;
- Where = &Empty;
- Hint = &Empty;
- List = NULL;
- DetailList = NULL;
- }
-
- StrBufAppendBufPlain(Message, CKEY(ErrGeneral[0]), 0);
- StrBufAppendBufPlain(Message, CKEY(*Short), 0);
- StrBufAppendBufPlain(Message, CKEY(ErrGeneral[1]), 0);
- StrBufAppendBufPlain(Message, CKEY(*Where), 0);
- StrBufAppendBuf(Message, List, 0);
- StrBufAppendBufPlain(Message, HKEY("\n\n"), 0);
- StrBufAppendBufPlain(Message, CKEY(*Hint), 0);
- StrBufAppendBufPlain(Message, HKEY("\n\n"), 0);
- StrBufAppendBufPlain(Message, CKEY(ErrGeneral[2]), 0);
- StrBufAppendBuf(Message, DetailList, 0);
- StrBufAppendBufPlain(Message, HKEY("\n\n"), 0);
- StrBufAppendBufPlain(Message, CKEY(ErrGeneral[3]), 0);
-
- syslog(LOG_EMERG, "extensions: %s", ChrPtr(Message));
- syslog(LOG_EMERG, "extensions: %s", ErrSubject);
- quickie_message("Citadel", NULL, NULL, AIDEROOM, ChrPtr(Message), FMT_FIXED, ErrSubject);
-
- FreeStrBuf(&Message);
- FreeStrBuf(&List);
- FreeStrBuf(&DetailList);
-}
-
-
-void AddPortError(char *Port, char *ErrorMessage)
-{
- long len;
-
- DetailErrorFlags |= ERR_PORT;
-
- len = StrLength(errormessages);
- if (len > 0) StrBufAppendBufPlain(errormessages, HKEY("; "), 0);
- else errormessages = NewStrBuf();
- StrBufAppendBufPlain(errormessages, ErrorMessage, -1, 0);
-
-
- len = StrLength(portlist);
- if (len > 0) StrBufAppendBufPlain(portlist, HKEY(";"), 0);
- else portlist = NewStrBuf();
- StrBufAppendBufPlain(portlist, Port, -1, 0);
-}
-
-
-int DLoader_Exec_Cmd(char *cmdbuf)
-{
- void *vP;
- ProtoFunctionHook *p;
-
- if (GetHash(ProtoHookList, cmdbuf, 4, &vP) && (vP != NULL)) {
- p = (ProtoFunctionHook*) vP;
- p->handler(&cmdbuf[5]);
- return 1;
- }
- return 0;
-}
-
-
-void CtdlRegisterProtoHook(void (*handler) (char *), char *cmd, char *desc)
-{
- ProtoFunctionHook *p;
-
- if (ProtoHookList == NULL)
- ProtoHookList = NewHash (1, FourHash);
-
-
- p = (ProtoFunctionHook *)
- malloc(sizeof(ProtoFunctionHook));
-
- if (p == NULL) {
- fprintf(stderr, "can't malloc new ProtoFunctionHook\n");
- exit(EXIT_FAILURE);
- }
- p->handler = handler;
- p->cmd = cmd;
- p->desc = desc;
-
- Put(ProtoHookList, cmd, 4, p, NULL);
- syslog(LOG_DEBUG, "extensions: registered server command %s (%s)", cmd, desc);
-}
-
-void CtdlDestroyProtoHooks(void)
-{
-
- DeleteHash(&ProtoHookList);
-}
-
-
-void CtdlRegisterCleanupHook(void (*fcn_ptr) (void))
-{
-
- CleanupFunctionHook *newfcn;
-
- newfcn = (CleanupFunctionHook *)
- malloc(sizeof(CleanupFunctionHook));
- newfcn->next = CleanupHookTable;
- newfcn->h_function_pointer = fcn_ptr;
- CleanupHookTable = newfcn;
-
- syslog(LOG_DEBUG, "extensions: registered a new cleanup function");
-}
-
-
-void CtdlUnregisterCleanupHook(void (*fcn_ptr) (void))
-{
- CleanupFunctionHook *cur, *p, *last;
- last = NULL;
- cur = CleanupHookTable;
- while (cur != NULL)
- {
- if (fcn_ptr == cur->h_function_pointer)
- {
- syslog(LOG_DEBUG, "extensions: unregistered cleanup function");
- p = cur->next;
-
- free(cur);
- cur = NULL;
-
- if (last != NULL)
- last->next = p;
- else
- CleanupHookTable = p;
- cur = p;
- }
- else {
- last = cur;
- cur = cur->next;
- }
- }
-}
-
-
-void CtdlDestroyCleanupHooks(void)
-{
- CleanupFunctionHook *cur, *p;
-
- cur = CleanupHookTable;
- while (cur != NULL)
- {
- syslog(LOG_DEBUG, "extensions: destroyed cleanup function");
- p = cur->next;
- free(cur);
- cur = p;
- }
- CleanupHookTable = NULL;
-}
-
-void CtdlRegisterEVCleanupHook(void (*fcn_ptr) (void))
-{
-
- CleanupFunctionHook *newfcn;
-
- newfcn = (CleanupFunctionHook *)
- malloc(sizeof(CleanupFunctionHook));
- newfcn->next = EVCleanupHookTable;
- newfcn->h_function_pointer = fcn_ptr;
- EVCleanupHookTable = newfcn;
-
- syslog(LOG_DEBUG, "extensions: registered a new cleanup function");
-}
-
-
-void CtdlUnregisterEVCleanupHook(void (*fcn_ptr) (void))
-{
- CleanupFunctionHook *cur, *p, *last;
- last = NULL;
- cur = EVCleanupHookTable;
- while (cur != NULL)
- {
- if (fcn_ptr == cur->h_function_pointer)
- {
- syslog(LOG_DEBUG, "extensions: unregistered cleanup function");
- p = cur->next;
-
- free(cur);
- cur = NULL;
-
- if (last != NULL)
- last->next = p;
- else
- EVCleanupHookTable = p;
- cur = p;
- }
- else {
- last = cur;
- cur = cur->next;
- }
- }
-}
-
-
-void CtdlDestroyEVCleanupHooks(void)
-{
- CleanupFunctionHook *cur, *p;
-
- cur = EVCleanupHookTable;
- while (cur != NULL)
- {
- syslog(LOG_DEBUG, "extensions: destroyed cleanup function");
- p = cur->next;
- cur->h_function_pointer();
- free(cur);
- cur = p;
- }
- EVCleanupHookTable = NULL;
-}
-
-
-
-
-void CtdlRegisterSessionHook(void (*fcn_ptr) (void), int EventType, int Priority)
-{
- SessionFunctionHook *newfcn;
-
- newfcn = (SessionFunctionHook *)
- malloc(sizeof(SessionFunctionHook));
- newfcn->Priority = Priority;
- newfcn->h_function_pointer = fcn_ptr;
- newfcn->eventtype = EventType;
-
- SessionFunctionHook **pfcn;
- pfcn = &SessionHookTable;
- while ((*pfcn != NULL) &&
- ((*pfcn)->Priority < newfcn->Priority) &&
- ((*pfcn)->next != NULL))
- pfcn = &(*pfcn)->next;
-
- newfcn->next = *pfcn;
- *pfcn = newfcn;
-
- syslog(LOG_DEBUG, "extensions: registered a new session function (type %d Priority %d)", EventType, Priority);
-}
-
-
-void CtdlUnregisterSessionHook(void (*fcn_ptr) (void), int EventType)
-{
- SessionFunctionHook *cur, *p, *last;
- last = NULL;
- cur = SessionHookTable;
- while (cur != NULL) {
- if ((fcn_ptr == cur->h_function_pointer) &&
- (EventType == cur->eventtype))
- {
- syslog(LOG_DEBUG, "extensions: unregistered session function (type %d)", EventType);
- p = cur->next;
-
- free(cur);
- cur = NULL;
-
- if (last != NULL)
- last->next = p;
- else
- SessionHookTable = p;
- cur = p;
- }
- else {
- last = cur;
- cur = cur->next;
- }
- }
-}
-
-void CtdlDestroySessionHooks(void)
-{
- SessionFunctionHook *cur, *p;
-
- cur = SessionHookTable;
- while (cur != NULL)
- {
- syslog(LOG_DEBUG, "extensions: destroyed session function");
- p = cur->next;
- free(cur);
- cur = p;
- }
- SessionHookTable = NULL;
-}
-
-
-void CtdlRegisterUserHook(void (*fcn_ptr) (ctdluser *), int EventType)
-{
-
- UserFunctionHook *newfcn;
-
- newfcn = (UserFunctionHook *)
- malloc(sizeof(UserFunctionHook));
- newfcn->next = UserHookTable;
- newfcn->h_function_pointer = fcn_ptr;
- newfcn->eventtype = EventType;
- UserHookTable = newfcn;
-
- syslog(LOG_DEBUG, "extensions: registered a new user function (type %d)",
- EventType);
-}
-
-
-void CtdlUnregisterUserHook(void (*fcn_ptr) (struct ctdluser *), int EventType)
-{
- UserFunctionHook *cur, *p, *last;
- last = NULL;
- cur = UserHookTable;
- while (cur != NULL) {
- if ((fcn_ptr == cur->h_function_pointer) &&
- (EventType == cur->eventtype))
- {
- syslog(LOG_DEBUG, "extensions: unregistered user function (type %d)", EventType);
- p = cur->next;
-
- free(cur);
- cur = NULL;
-
- if (last != NULL)
- last->next = p;
- else
- UserHookTable = p;
- cur = p;
- }
- else {
- last = cur;
- cur = cur->next;
- }
- }
-}
-
-void CtdlDestroyUserHooks(void)
-{
- UserFunctionHook *cur, *p;
-
- cur = UserHookTable;
- while (cur != NULL)
- {
- syslog(LOG_DEBUG, "extensions: destroyed user function");
- p = cur->next;
- free(cur);
- cur = p;
- }
- UserHookTable = NULL;
-}
-
-
-void CtdlRegisterMessageHook(int (*handler)(struct CtdlMessage *, recptypes *), int EventType)
-{
-
- MessageFunctionHook *newfcn;
-
- newfcn = (MessageFunctionHook *)
- malloc(sizeof(MessageFunctionHook));
- newfcn->next = MessageHookTable;
- newfcn->h_function_pointer = handler;
- newfcn->eventtype = EventType;
- MessageHookTable = newfcn;
-
- syslog(LOG_DEBUG, "extensions: registered a new message function (type %d)", EventType);
-}
-
-
-void CtdlUnregisterMessageHook(int (*handler)(struct CtdlMessage *, recptypes *), int EventType)
-{
- MessageFunctionHook *cur, *p, *last;
- last = NULL;
- cur = MessageHookTable;
- while (cur != NULL) {
- if ((handler == cur->h_function_pointer) &&
- (EventType == cur->eventtype))
- {
- syslog(LOG_DEBUG, "extensions: unregistered message function (type %d)", EventType);
- p = cur->next;
- free(cur);
- cur = NULL;
-
- if (last != NULL)
- last->next = p;
- else
- MessageHookTable = p;
- cur = p;
- }
- else {
- last = cur;
- cur = cur->next;
- }
- }
-}
-
-void CtdlDestroyMessageHook(void)
-{
- MessageFunctionHook *cur, *p;
-
- cur = MessageHookTable;
- while (cur != NULL)
- {
- syslog(LOG_DEBUG, "extensions: destroyed message function (type %d)", cur->eventtype);
- p = cur->next;
- free(cur);
- cur = p;
- }
- MessageHookTable = NULL;
-}
-
-
-void CtdlRegisterRoomHook(int (*fcn_ptr)(struct ctdlroom *))
-{
- RoomFunctionHook *newfcn;
-
- newfcn = (RoomFunctionHook *)
- malloc(sizeof(RoomFunctionHook));
- newfcn->next = RoomHookTable;
- newfcn->fcn_ptr = fcn_ptr;
- RoomHookTable = newfcn;
-
- syslog(LOG_DEBUG, "extensions: registered a new room function");
-}
-
-
-void CtdlUnregisterRoomHook(int (*fcn_ptr)(struct ctdlroom *))
-{
- RoomFunctionHook *cur, *p, *last;
- last = NULL;
- cur = RoomHookTable;
- while (cur != NULL)
- {
- if (fcn_ptr == cur->fcn_ptr) {
- syslog(LOG_DEBUG, "extensions: unregistered room function");
- p = cur->next;
-
- free(cur);
- cur = NULL;
-
- if (last != NULL)
- last->next = p;
- else
- RoomHookTable = p;
- cur = p;
- }
- else {
- last = cur;
- cur = cur->next;
- }
- }
-}
-
-
-void CtdlDestroyRoomHooks(void)
-{
- RoomFunctionHook *cur, *p;
-
- cur = RoomHookTable;
- while (cur != NULL)
- {
- syslog(LOG_DEBUG, "extensions: destroyed room function");
- p = cur->next;
- free(cur);
- cur = p;
- }
- RoomHookTable = NULL;
-}
-
-void CtdlRegisterNetprocHook(int (*handler)(struct CtdlMessage *, char *) )
-{
- NetprocFunctionHook *newfcn;
-
- newfcn = (NetprocFunctionHook *)
- malloc(sizeof(NetprocFunctionHook));
- newfcn->next = NetprocHookTable;
- newfcn->h_function_pointer = handler;
- NetprocHookTable = newfcn;
-
- syslog(LOG_DEBUG, "extensions: registered a new netproc function");
-}
-
-
-void CtdlUnregisterNetprocHook(int (*handler)(struct CtdlMessage *, char *) )
-{
- NetprocFunctionHook *cur, *p, *last;
-
- cur = NetprocHookTable;
- last = NULL;
-
- while (cur != NULL) {
- if (handler == cur->h_function_pointer)
- {
- syslog(LOG_DEBUG, "extensions: unregistered netproc function");
- p = cur->next;
- free(cur);
- if (last != NULL) {
- last->next = p;
- }
- else {
- NetprocHookTable = p;
- }
- cur = p;
- }
- else {
- last = cur;
- cur = cur->next;
- }
- }
-}
-
-void CtdlDestroyNetprocHooks(void)
-{
- NetprocFunctionHook *cur, *p;
-
- cur = NetprocHookTable;
- while (cur != NULL)
- {
- syslog(LOG_DEBUG, "extensions: destroyed netproc function");
- p = cur->next;
- free(cur);
- cur = p;
- }
- NetprocHookTable = NULL;
-}
-
-
-void CtdlRegisterDeleteHook(void (*handler)(char *, long) )
-{
- DeleteFunctionHook *newfcn;
-
- newfcn = (DeleteFunctionHook *)
- malloc(sizeof(DeleteFunctionHook));
- newfcn->next = DeleteHookTable;
- newfcn->h_function_pointer = handler;
- DeleteHookTable = newfcn;
-
- syslog(LOG_DEBUG, "extensions: registered a new delete function");
-}
-
-
-void CtdlUnregisterDeleteHook(void (*handler)(char *, long) )
-{
- DeleteFunctionHook *cur, *p, *last;
-
- last = NULL;
- cur = DeleteHookTable;
- while (cur != NULL) {
- if (handler == cur->h_function_pointer )
- {
- syslog(LOG_DEBUG, "extensions: unregistered delete function");
- p = cur->next;
- free(cur);
-
- if (last != NULL)
- last->next = p;
- else
- DeleteHookTable = p;
-
- cur = p;
- }
- else {
- last = cur;
- cur = cur->next;
- }
- }
-}
-
-
-void CtdlDestroyDeleteHooks(void)
-{
- DeleteFunctionHook *cur, *p;
-
- cur = DeleteHookTable;
- while (cur != NULL)
- {
- syslog(LOG_DEBUG, "extensions: destroyed delete function");
- p = cur->next;
- free(cur);
- cur = p;
- }
- DeleteHookTable = NULL;
-}
-
-
-void CtdlRegisterFixedOutputHook(char *content_type, void (*handler)(char *, int) )
-{
- FixedOutputHook *newfcn;
-
- newfcn = (FixedOutputHook *)
- malloc(sizeof(FixedOutputHook));
- newfcn->next = FixedOutputTable;
- newfcn->h_function_pointer = handler;
- safestrncpy(newfcn->content_type, content_type, sizeof newfcn->content_type);
- FixedOutputTable = newfcn;
-
- syslog(LOG_DEBUG, "extensions: registered a new fixed output function for %s", newfcn->content_type);
-}
-
-
-void CtdlUnregisterFixedOutputHook(char *content_type)
-{
- FixedOutputHook *cur, *p, *last;
-
- last = NULL;
- cur = FixedOutputTable;
- while (cur != NULL) {
- /* This will also remove duplicates if any */
- if (!strcasecmp(content_type, cur->content_type)) {
- syslog(LOG_DEBUG, "extensions: unregistered fixed output function for %s", content_type);
- p = cur->next;
- free(cur);
-
- if (last != NULL)
- last->next = p;
- else
- FixedOutputTable = p;
-
- cur = p;
- }
- else
- {
- last = cur;
- cur = cur->next;
- }
- }
-}
-
-void CtdlDestroyFixedOutputHooks(void)
-{
- FixedOutputHook *cur, *p;
-
- cur = FixedOutputTable;
- while (cur != NULL)
- {
- syslog(LOG_DEBUG, "extensions: destroyed fixed output function for %s", cur->content_type);
- p = cur->next;
- free(cur);
- cur = p;
-
- }
- FixedOutputTable = NULL;
-}
-
-/* returns nonzero if we found a hook and used it */
-int PerformFixedOutputHooks(char *content_type, char *content, int content_length)
-{
- FixedOutputHook *fcn;
-
- for (fcn = FixedOutputTable; fcn != NULL; fcn = fcn->next) {
- if (!strcasecmp(content_type, fcn->content_type)) {
- (*fcn->h_function_pointer) (content, content_length);
- return(1);
- }
- }
- return(0);
-}
-
-
-void CtdlRegisterXmsgHook(int (*fcn_ptr) (char *, char *, char *, char *), int order)
-{
-
- XmsgFunctionHook *newfcn;
-
- newfcn = (XmsgFunctionHook *) malloc(sizeof(XmsgFunctionHook));
- newfcn->next = XmsgHookTable;
- newfcn->order = order;
- newfcn->h_function_pointer = fcn_ptr;
- XmsgHookTable = newfcn;
- syslog(LOG_DEBUG, "extensions: registered a new x-msg function (priority %d)", order);
-}
-
-
-void CtdlUnregisterXmsgHook(int (*fcn_ptr) (char *, char *, char *, char *), int order)
-{
- XmsgFunctionHook *cur, *p, *last;
-
- last = NULL;
- cur = XmsgHookTable;
- while (cur != NULL) {
- /* This will also remove duplicates if any */
- if (fcn_ptr == cur->h_function_pointer &&
- order == cur->order) {
- syslog(LOG_DEBUG, "extensions: unregistered x-msg function (priority %d)", order);
- p = cur->next;
- free(cur);
-
- if (last != NULL) {
- last->next = p;
- }
- else {
- XmsgHookTable = p;
- }
- cur = p;
- }
- else {
- last = cur;
- cur = cur->next;
- }
- }
-}
-
-
-void CtdlDestroyXmsgHooks(void)
-{
- XmsgFunctionHook *cur, *p;
-
- cur = XmsgHookTable;
- while (cur != NULL)
- {
- syslog(LOG_DEBUG, "extensions: destroyed x-msg function (priority %d)", cur->order);
- p = cur->next;
- free(cur);
- cur = p;
- }
- XmsgHookTable = NULL;
-}
-
-
-void CtdlRegisterServiceHook(int tcp_port,
- char *sockpath,
- void (*h_greeting_function) (void),
- void (*h_command_function) (void),
- void (*h_async_function) (void),
- const char *ServiceName)
-{
- ServiceFunctionHook *newfcn;
- char *message;
- char error[SIZ];
-
- strcpy(error, "");
- newfcn = (ServiceFunctionHook *) malloc(sizeof(ServiceFunctionHook));
- message = (char*) malloc (SIZ + SIZ);
-
- 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;
- newfcn->h_async_function = h_async_function;
- newfcn->ServiceName = ServiceName;
-
- if (sockpath != NULL) {
- newfcn->msock = ctdl_uds_server(sockpath, CtdlGetConfigInt("c_maxsessions"), error);
- snprintf(message, SIZ, "extensions: unix domain socket '%s': ", sockpath);
- }
- else if (tcp_port <= 0) { /* port -1 to disable */
- syslog(LOG_INFO, "extensions: service %s has been manually disabled, skipping", ServiceName);
- free (message);
- free(newfcn);
- return;
- }
- else {
- newfcn->msock = ctdl_tcp_server(CtdlGetConfigStr("c_ip_addr"),
- tcp_port,
- CtdlGetConfigInt("c_maxsessions"),
- error);
- snprintf(message, SIZ, "extensions: TCP port %s:%d: (%s) ",
- CtdlGetConfigStr("c_ip_addr"), tcp_port, ServiceName);
- }
-
- if (newfcn->msock > 0) {
- ServiceHookTable = newfcn;
- strcat(message, "registered.");
- syslog(LOG_INFO, "%s", message);
- }
- else {
- AddPortError(message, error);
- strcat(message, "FAILED.");
- syslog(LOG_ERR, "%s", message);
- free(newfcn);
- }
- free(message);
-}
-
-
-void CtdlUnregisterServiceHook(int tcp_port, char *sockpath,
- void (*h_greeting_function) (void),
- void (*h_command_function) (void),
- void (*h_async_function) (void)
- )
-{
- ServiceFunctionHook *cur, *p, *last;
-
- last = NULL;
- cur = ServiceHookTable;
- while (cur != NULL) {
- /* This will also remove duplicates if any */
- if (h_greeting_function == cur->h_greeting_function &&
- h_command_function == cur->h_command_function &&
- h_async_function == cur->h_async_function &&
- tcp_port == cur->tcp_port &&
- !(sockpath && cur->sockpath && strcmp(sockpath, cur->sockpath)) )
- {
- if (cur->msock > 0)
- close(cur->msock);
- if (sockpath) {
- syslog(LOG_INFO, "extensions: closed UNIX domain socket %s", sockpath);
- unlink(sockpath);
- } else if (tcp_port) {
- syslog(LOG_INFO, "extensions: closed TCP port %d", tcp_port);
- } else {
- syslog(LOG_INFO, "extensions: unregistered service \"%s\"", cur->ServiceName);
- }
- p = cur->next;
- free(cur);
- if (last != NULL)
- last->next = p;
- else
- ServiceHookTable = p;
- cur = p;
- }
- else {
- last = cur;
- cur = cur->next;
- }
- }
-}
-
-
-void CtdlShutdownServiceHooks(void)
-{
- /* sort of a duplicate of close_masters() but called earlier */
- ServiceFunctionHook *cur;
-
- cur = ServiceHookTable;
- while (cur != NULL)
- {
- if (cur->msock != -1)
- {
- close(cur->msock);
- cur->msock = -1;
- if (cur->sockpath != NULL){
- syslog(LOG_INFO, "extensions: [%s] Closed UNIX domain socket %s", cur->ServiceName, cur->sockpath);
- unlink(cur->sockpath);
- } else {
- syslog(LOG_INFO, "extensions: [%s] closing service", cur->ServiceName);
- }
- }
- cur = cur->next;
- }
-}
-
-
-void CtdlDestroyServiceHook(void)
-{
- const char *Text;
- ServiceFunctionHook *cur, *p;
-
- cur = ServiceHookTable;
- while (cur != NULL)
- {
- if (cur->msock != -1)
- {
- close(cur->msock);
- Text = "Closed";
- }
- else
- {
- Text = " Not closing again";
- }
-
- if (cur->sockpath) {
- syslog(LOG_INFO, "extensions: %s UNIX domain socket %s", Text, cur->sockpath);
- unlink(cur->sockpath);
- } else if (cur->tcp_port) {
- syslog(LOG_INFO, "extensions: %s TCP port %d", Text, cur->tcp_port);
- } else {
- syslog(LOG_INFO, "extensions: destroyed service \"%s\"", cur->ServiceName);
- }
- p = cur->next;
- free(cur);
- cur = p;
- }
- ServiceHookTable = NULL;
-}
-
-void CtdlRegisterSearchFuncHook(void (*fcn_ptr)(int *, long **, const char *), char *name)
-{
- SearchFunctionHook *newfcn;
-
- if (!name || !fcn_ptr) {
- return;
- }
-
- newfcn = (SearchFunctionHook *)
- malloc(sizeof(SearchFunctionHook));
- newfcn->next = SearchFunctionHookTable;
- newfcn->name = name;
- newfcn->fcn_ptr = fcn_ptr;
- SearchFunctionHookTable = newfcn;
-
- syslog(LOG_DEBUG, "extensions: registered a new search function (%s)", name);
-}
-
-void CtdlUnregisterSearchFuncHook(void (*fcn_ptr)(int *, long **, const char *), char *name)
-{
- SearchFunctionHook *cur, *p, *last;
-
- last = NULL;
- cur = SearchFunctionHookTable;
- while (cur != NULL) {
- if (fcn_ptr &&
- (cur->fcn_ptr == fcn_ptr) &&
- name && !strcmp(name, cur->name))
- {
- syslog(LOG_DEBUG, "extensions: unregistered search function(%s)", name);
- p = cur->next;
- free (cur);
- if (last != NULL)
- last->next = p;
- else
- SearchFunctionHookTable = p;
- cur = p;
- }
- else {
- last = cur;
- cur = cur->next;
- }
- }
-}
-
-void CtdlDestroySearchHooks(void)
-{
- SearchFunctionHook *cur, *p;
-
- cur = SearchFunctionHookTable;
- SearchFunctionHookTable = NULL;
- while (cur != NULL) {
- p = cur->next;
- free(cur);
- cur = p;
- }
-}
-
-void CtdlModuleDoSearch(int *num_msgs, long **search_msgs, const char *search_string, const char *func_name)
-{
- SearchFunctionHook *fcn = NULL;
-
- for (fcn = SearchFunctionHookTable; fcn != NULL; fcn = fcn->next) {
- if (!func_name || !strcmp(func_name, fcn->name)) {
- (*fcn->fcn_ptr) (num_msgs, search_msgs, search_string);
- return;
- }
- }
- *num_msgs = 0;
-}
-
-
-void PerformSessionHooks(int EventType)
-{
- SessionFunctionHook *fcn = NULL;
-
- for (fcn = SessionHookTable; fcn != NULL; fcn = fcn->next) {
- if (fcn->eventtype == EventType) {
- if (EventType == EVT_TIMER) {
- pthread_setspecific(MyConKey, NULL); /* for every hook */
- }
- (*fcn->h_function_pointer) ();
- }
- }
-}
-
-void PerformUserHooks(ctdluser *usbuf, int EventType)
-{
- UserFunctionHook *fcn = NULL;
-
- for (fcn = UserHookTable; fcn != NULL; fcn = fcn->next) {
- if (fcn->eventtype == EventType) {
- (*fcn->h_function_pointer) (usbuf);
- }
- }
-}
-
-int PerformMessageHooks(struct CtdlMessage *msg, recptypes *recps, int EventType)
-{
- MessageFunctionHook *fcn = NULL;
- 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.
- */
- if (msg->cm_flags & CM_SKIP_HOOKS) {
- 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, recps);
- }
- }
-
- /* 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 PerformRoomHooks(struct ctdlroom *target_room)
-{
- RoomFunctionHook *fcn;
- int total_retval = 0;
-
- syslog(LOG_DEBUG, "extensions: performing room hooks for <%s>", target_room->QRname);
-
- for (fcn = RoomHookTable; fcn != NULL; fcn = fcn->next) {
- total_retval = total_retval + (*fcn->fcn_ptr) (target_room);
- }
-
- /* Return the sum of the return codes from the hook functions.
- */
- return total_retval;
-}
-
-
-int PerformNetprocHooks(struct CtdlMessage *msg, char *target_room)
-{
- 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)
-{
- DeleteFunctionHook *fcn;
-
- for (fcn = DeleteHookTable; fcn != NULL; fcn = fcn->next) {
- (*fcn->h_function_pointer) (room, msgnum);
- }
-}
-
-
-
-
-
-int PerformXmsgHooks(char *sender, char *sender_email, char *recp, char *msg)
-{
- 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, sender_email, 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;
-}
-
-
-/*
- * Dirty hack until we impliment a hook mechanism for this
- */
-void CtdlModuleStartCryptoMsgs(char *ok_response, char *nosup_response, char *error_response)
-{
-#ifdef HAVE_OPENSSL
- CtdlStartTLS (ok_response, nosup_response, error_response);
-#endif
-}
-
-
-CTDL_MODULE_INIT(modules)
-{
- if (!threading) {
- }
- return "modules";
-}
projects / citadel.git / blobdiff