-/*
- * Main declarations file for the Citadel server
- *
- * Copyright (c) 1987-2023 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.
- */
+// Data types for the Citadel Server
+//
+// Copyright (c) 1987-2024 by the citadel.org team
+//
+// This program is open source software. Use, duplication, or disclosure
+// is subject to the terms of the GNU General Public License, version 3.
#ifndef SERVER_H
#define SERVER_H
#define INLINE
#endif
-#include "citadel.h"
+#include "citadel_defs.h"
#ifdef HAVE_OPENSSL
-#define OPENSSL_NO_KRB5 /* work around redhat b0rken ssl headers */
+#define OPENSSL_NO_KRB5 // work around redhat b0rken ssl headers
#include <openssl/ssl.h>
#endif
-/*
- * New format for a message in memory
- */
+
+// 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) */
+ 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() */
+// Data structure returned by validate_recipients()
struct recptypes {
int recptypes_magic;
int num_local;
char *sending_room;
};
-#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_HOME 103 // Citadel home directory not found
-#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;
+
+// Instant message in transit on the system (not used in the database)
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_SUPPMSGMAIN,
- S_CONFIG,
- S_HOUSEKEEPING,
- S_NETCONFIGS,
- S_FLOORCACHE,
- S_ATBF,
- S_JOURNAL_QUEUE,
- S_CHKPWD,
- S_XMPP_QUEUE,
- S_SINGLE_USER,
- S_IM_LOGS,
- S_OPENSSL,
- S_SMTPQUEUE,
- 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 */
+ 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)
};
-/*
- * 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 */
-};
+// Row being stored or fetched in the database
struct cdbdata {
- size_t len;
- char *ptr;
+ size_t len; // size of datum pointed to by ptr
+ char *ptr; // datum
};
-/*
- * 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
+// Row being fetched from the database, both key and value are returned
+struct cdbkeyval {
+ struct cdbdata key; // size and pointer to key
+ struct cdbdata val; // size and pointer to value
};
-/* Defines the relationship of a user to a particular room */
-typedef struct __visit {
- long v_roomnum;
- long v_roomgen;
- long v_usernum;
+// Defines the relationship of a user to a particular room
+// NOTE: if you add fields to this, you have to also write export/import code in server/modules/migrate/serv_migrate.c
+// NOTE: if you add fields to this, you have to also write conversion code in utils/ctdl3264/*
+struct visit {
+ long v_roomnum; //
+ long v_roomgen; // The first three fields , sizeof(long)*3 , are the index format.
+ long v_usernum; //
long v_lastseen;
- unsigned int v_flags;
+ unsigned 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 */
+
+// This is the db index format for "visit" records, which describe the relationship between one user and one room.
+struct visit_index {
+ long iRoomID;
+ long iRoomGen;
+ long iUserID;
+};
-/* 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
- */
+// 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
+// NOTE: if you add fields to this, you have to also write export/import code in server/modules/migrate/serv_migrate.c
+// NOTE: if you add fields to this, you have to also write conversion code in utils/ctdl3264/*
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 */
+ 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.
- */
+// 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 ) */
+ 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 {
+ int hash;
+ time_t timestamp;
};
-/*
- * 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;
+// User records.
+// NOTE: if you add fields to this, you have to also write export/import code in server/modules/migrate/serv_migrate.c
+// NOTE: if you add fields to this, you have to also write conversion code in utils/ctdl3264/*
+typedef struct ctdluser ctdluser;
+struct ctdluser { // User record
+ int version; // Citadel version which created this record
+ uid_t uid; // Associate with a unix account?
+ char password[32]; // password
+ unsigned flags; // See US_ flags below
+ long unused1;
+ long unused2;
+ cit_uint8_t axlevel; // Access level
+ long usernum; // User number (never recycled)
+ time_t lastcall; // Date/time of most recent login
+ int USuserpurge; // Purge time (in days) for user
+ char fullname[64]; // Display name (primary identifier)
+ long msgnum_bio; // msgnum of user's profile (bio)
+ long msgnum_pic; // msgnum of user's avatar (photo)
+ char emailaddrs[512]; // Internet email addresses
+ long msgnum_inboxrules; // msgnum of user's inbox filtering rules
+ long lastproc_inboxrules; // msgnum of last message filtered
+};
+
+
+// Message expiration policy stuff
+// NOTE: if you add fields to this, you have to also write export/import code in server/modules/migrate/serv_migrate.c
+// NOTE: if you add fields to this, you have to also write conversion code in utils/ctdl3264/*
+typedef struct ExpirePolicy ExpirePolicy;
+struct ExpirePolicy {
+ int expire_mode;
+ int expire_value;
+};
+
+
+// Room records.
+// NOTE: if you add fields to this, you have to also write export/import code in server/modules/migrate/serv_migrate.c
+// NOTE: if you add fields to this, you have to also write conversion code in utils/ctdl3264/*
+struct ctdlroom {
+ char QRname[ROOMNAMELEN]; // Name of room
+ char QRpasswd[10]; // Only valid if it's a private rm
+ long QRroomaide; // User number of room aide
+ long QRhighest; // Highest message NUMBER in room
+ time_t QRgen; // Generation number of room
+ unsigned QRflags; // See flag values below
+ char QRdirname[15]; // Directory name, if applicable
+ long msgnum_info; // msgnum of room banner (info file)
+ char QRfloor; // Which floor this room is on
+ time_t QRmtime; // Date/time of last post
+ struct ExpirePolicy QRep; // Message expiration policy
+ long QRnumber; // Globally unique room number
+ char QRorder; // Sort key for room listing order
+ unsigned QRflags2; // Additional flags
+ int QRdefaultview; // How to display the contents
+ long msgnum_pic; // msgnum of room picture or icon
+};
+
+
+// Floor record. The floor number is implicit in its location in the file.
+// NOTE: if you add fields to this, you have to also write export/import code in server/modules/migrate/serv_migrate.c
+// NOTE: if you add fields to this, you have to also write conversion code in utils/ctdl3264/*
+struct floor {
+ unsigned short f_flags; // flags
+ char f_name[256]; // name of floor
+ int f_ref_count; // reference count
+ struct ExpirePolicy f_ep; // default expiration policy
+};
+
+
+// Database records beginning with this magic number are assumed to
+// be compressed. In the event that a database record actually begins with
+// this magic number, we *must* compress it whether we want to or not,
+// because the fetch function will try to uncompress it anyway.
+//
+// (No need to #ifdef this stuff; it compiles ok even if zlib is not present
+// and doesn't declare anything so it won't bloat the code)
+#define COMPRESS_MAGIC 0xc0ffeeee
+
+struct CtdlCompressHeader {
+ int magic;
+ size_t uncompressed_len;
+ size_t compressed_len;
};
-/*
- * 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 */
+#endif // SERVER_H
projects / citadel.git / blobdiff