-/*
- * Main declarations file for the Citadel server
- *
- * Copyright (c) 1987-2020 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.
- */
-
-#ifndef SERVER_H
-#define SERVER_H
-
-#ifdef __GNUC__
-#define INLINE __inline__
-#else
-#define INLINE
-#endif
-
-#include "citadel.h"
-#ifdef HAVE_OPENSSL
-#define OPENSSL_NO_KRB5 /* work around redhat b0rken ssl headers */
-#include <openssl/ssl.h>
-#endif
-
-/*
- * New format for a message in memory
- */
-struct CtdlMessage {
- int cm_magic; /* Self-check (NOT SAVED TO DISK) */
- char cm_anon_type; /* Anonymous or author-visible */
- char cm_format_type; /* Format type */
- char *cm_fields[256]; /* Data fields */
- long cm_lengths[256]; /* size of datafields */
- unsigned int cm_flags; /* How to handle (NOT SAVED TO DISK) */
-};
-
-#define CTDLMESSAGE_MAGIC 0x159d
-#define CM_SKIP_HOOKS 0x01 /* Don't run server-side handlers */
-
-
-/* Data structure returned by validate_recipients() */
-typedef struct __recptypes {
- int recptypes_magic;
- int num_local;
- int num_internet;
- int num_ignet;
- int num_room;
- int num_error;
- char *errormsg;
- char *recp_local;
- char *recp_internet;
- char *recp_room;
- char *recp_orgroom;
- char *display_recp;
- char *bounce_to;
- char *envelope_from;
- char *sending_room;
-} recptypes;
-
-#define RECPTYPES_MAGIC 0xfeeb
-
-#define CTDLEXIT_SHUTDOWN 0 // Normal shutdown; do NOT auto-restart
-
-/*
- * Exit codes 101 through 109 are used for conditions in which
- * we deliberately do NOT want the service to automatically
- * restart.
- */
-#define CTDLEXIT_CONFIG 101 // Could not read system configuration
-#define CTDLEXIT_CONTROL 102 // Could not acquire lock
-#define CTDLEXIT_HOME 103 // Citadel home directory not found
-#define CTDLEXIT_OOD 104 // Out Of Date config - rerun setup
-#define CTDLEXIT_DB 105 // Unable to initialize database
-#define CTDLEXIT_LIBCITADEL 106 // Incorrect version of libcitadel
-#define CTDL_EXIT_UNSUP_AUTH 107 // Unsupported auth mode configured
-#define CTDLEXIT_UNUSER 108 // Could not determine uid to run as
-#define CTDLEXIT_CRYPTO 109 // Problem initializing SSL or TLS
-
-/*
- * Reasons why a session would be terminated (set CC->kill_me to these values)
- */
-enum {
- KILLME_NOT,
- KILLME_UNKNOWN,
- KILLME_CLIENT_LOGGED_OUT,
- KILLME_IDLE,
- KILLME_CLIENT_DISCONNECTED,
- KILLME_AUTHFAILED,
- KILLME_SERVER_SHUTTING_DOWN,
- KILLME_MAX_SESSIONS_EXCEEDED,
- KILLME_ADMIN_TERMINATE,
- KILLME_SELECT_INTERRUPTED,
- KILLME_SELECT_FAILED,
- KILLME_WRITE_FAILED,
- KILLME_SIMULATION_WORKER,
- KILLME_NOLOGIN,
- KILLME_NO_CRYPTO,
- KILLME_READSTRING_FAILED,
- KILLME_MALLOC_FAILED,
- KILLME_QUOTA,
- KILLME_READ_FAILED,
- KILLME_SPAMMER,
- KILLME_XML_PARSER
-};
-
-
-#define CS_STEALTH 1 /* stealth mode */
-#define CS_CHAT 2 /* chat mode */
-#define CS_POSTING 4 /* Posting */
-
-extern int ScheduledShutdown;
-extern uid_t ctdluid;
-extern int sanity_diag_mode;
-
-struct ExpressMessage {
- struct ExpressMessage *next;
- time_t timestamp; /* When this message was sent */
- unsigned flags; /* Special instructions */
- char sender[256]; /* Name of sending user */
- char sender_email[256]; /* Email or JID of sending user */
- char *text; /* Message text (if applicable) */
-};
-
-#define EM_BROADCAST 1 /* Broadcast message */
-#define EM_GO_AWAY 2 /* Server requests client log off */
-#define EM_CHAT 4 /* Server requests client enter chat */
-
-/*
- * Various things we need to lock and unlock
- */
-enum {
- S_USERS,
- S_ROOMS,
- S_SESSION_TABLE,
- S_FLOORTAB,
- S_CHATQUEUE,
- S_CONTROL,
- S_NETDB,
- S_SUPPMSGMAIN,
- S_CONFIG,
- S_HOUSEKEEPING,
- S_DIRECTORY,
- S_NETCONFIGS,
- S_FLOORCACHE,
- S_ATBF,
- S_JOURNAL_QUEUE,
- S_RPLIST,
- S_CHKPWD,
- S_LOG,
- S_NETSPOOL,
- S_XMPP_QUEUE,
- S_SCHEDULE_LIST,
- S_SINGLE_USER,
- S_LDAP,
- S_IM_LOGS,
- MAX_SEMAPHORES
-};
-
-
-/*
- * message transfer formats
- */
-enum {
- MT_CITADEL, /* Citadel proprietary */
- MT_RFC822, /* RFC822 */
- MT_MIME, /* MIME-formatted message */
- MT_DOWNLOAD, /* Download a component */
- MT_SPEW_SECTION /* Download a component in a single operation */
-};
-
-/*
- * Message format types in the database
- */
-#define FMT_CITADEL 0 /* Citadel vari-format (proprietary) */
-#define FMT_FIXED 1 /* Fixed format (proprietary) */
-#define FMT_RFC822 4 /* Standard (headers are in M field) */
-
-
-/*
- * Citadel DataBases (define one for each cdb we need to open)
- */
-enum {
- CDB_MSGMAIN, /* message base */
- CDB_USERS, /* user file */
- CDB_ROOMS, /* room index */
- CDB_FLOORTAB, /* floor index */
- CDB_MSGLISTS, /* room message lists */
- CDB_VISIT, /* user/room relationships */
- CDB_DIRECTORY, /* address book directory */
- CDB_USETABLE, /* network use table */
- CDB_BIGMSGS, /* larger message bodies */
- CDB_FULLTEXT, /* full text search index */
- CDB_EUIDINDEX, /* locate msgs by EUID */
- CDB_USERSBYNUMBER, /* index of users by number */
- CDB_EXTAUTH, /* associates OpenIDs with users */
- CDB_CONFIG, /* system configuration database */
- MAXCDB /* total number of CDB's defined */
-};
-
-struct cdbdata {
- size_t len;
- char *ptr;
-};
-
-
-/*
- * Event types can't be enum'ed, because they must remain consistent between
- * builds (to allow for binary modules built somewhere else)
- */
-#define EVT_STOP 0 /* Session is terminating */
-#define EVT_START 1 /* Session is starting */
-#define EVT_LOGIN 2 /* A user is logging in */
-#define EVT_NEWROOM 3 /* Changing rooms */
-#define EVT_LOGOUT 4 /* A user is logging out */
-#define EVT_SETPASS 5 /* Setting or changing password */
-#define EVT_CMD 6 /* Called after each server command */
-#define EVT_RWHO 7 /* An RWHO command is being executed */
-#define EVT_ASYNC 8 /* Doing asynchronous messages */
-#define EVT_STEALTH 9 /* Entering stealth mode */
-#define EVT_UNSTEALTH 10 /* Exiting stealth mode */
-
-#define EVT_TIMER 50 /* Timer events are called once per minute
- and are not tied to any session */
-#define EVT_HOUSE 51 /* as needed houskeeping stuff */
-#define EVT_SHUTDOWN 52 /* Server is shutting down */
-
-#define EVT_PURGEUSER 100 /* Deleting a user */
-#define EVT_NEWUSER 102 /* Creating a user */
-
-#define EVT_BEFORESAVE 201
-#define EVT_AFTERSAVE 202
-#define EVT_SMTPSCAN 203 /* called before submitting a msg from SMTP */
-#define EVT_AFTERUSRMBOXSAVE 204 /* called afte a message was saved into a users inbox */
-/* Priority levels for paging functions (lower is better) */
-enum {
- XMSG_PRI_LOCAL, /* Other users on -this- server */
- XMSG_PRI_REMOTE, /* Other users on a Citadel network (future) */
- XMSG_PRI_FOREIGN, /* Contacts on foreign instant message hosts */
- MAX_XMSG_PRI
-};
-
-
-/* Defines the relationship of a user to a particular room */
-typedef struct __visit {
- long v_roomnum;
- long v_roomgen;
- long v_usernum;
- long v_lastseen;
- unsigned int v_flags;
- char v_seen[SIZ];
- char v_answered[SIZ];
- int v_view;
-} visit;
-
-#define V_FORGET 1 /* User has zapped this room */
-#define V_LOCKOUT 2 /* User is locked out of this room */
-#define V_ACCESS 4 /* Access is granted to this room */
-
-
-/* Supplementary data for a message on disk
- * These are kept separate from the message itself for one of two reasons:
- * 1. Either their values may change at some point after initial save, or
- * 2. They are merely caches of data which exist somewhere else, for speed.
- * DO NOT PUT BIG DATA IN HERE ... we need this struct to be tiny for lots of quick r/w
- */
-struct MetaData {
- long meta_msgnum; /* Message number in *local* message base */
- int meta_refcount; /* Number of rooms pointing to this msg */
- char meta_content_type[64]; /* Cached MIME content-type */
- long meta_rfc822_length; /* Cache of RFC822-translated msg length */
-};
-
-
-/* Calls to AdjRefCount() are queued and deferred, so the user doesn't
- * have to wait for various disk-intensive operations to complete synchronously.
- * This is the record format.
- */
-struct arcq {
- long arcq_msgnum; /* Message number being adjusted */
- int arcq_delta; /* Adjustment ( usually 1 or -1 ) */
-};
-
-
-/*
- * Serialization routines use this struct to return a pointer and a length
- */
-struct ser_ret {
- size_t len;
- unsigned char *ser;
-};
-
-
-/*
- * The S_USETABLE database is used in several modules now, so we define its format here.
- */
-struct UseTable {
- char ut_msgid[SIZ];
- time_t ut_timestamp;
-};
-
-
-/*
- * These one-byte field headers are found in the Citadel message store.
- */
-typedef enum _MsgField {
- eAuthor = 'A',
- eBig_message = 'B',
- eExclusiveID = 'E',
- erFc822Addr = 'F',
- emessageId = 'I',
- eJournal = 'J',
- eReplyTo = 'K',
- eListID = 'L',
- eMesageText = 'M',
- eOriginalRoom = 'O',
- eMessagePath = 'P',
- eRecipient = 'R',
- eTimestamp = 'T',
- eMsgSubject = 'U',
- eenVelopeTo = 'V',
- eWeferences = 'W',
- eCarbonCopY = 'Y',
- eErrorMsg = '0',
- eSuppressIdx = '1',
- eExtnotify = '2',
- eVltMsgNum = '3'
-} eMsgField;
-
-#endif /* SERVER_H */