8 #define INLINE __inline__
15 #define OPENSSL_NO_KRB5 /* work around redhat b0rken ssl headers */
16 #include <openssl/ssl.h>
19 #if TIME_WITH_SYS_TIME
20 # include <sys/time.h>
24 # include <sys/time.h>
31 * New format for a message in memory
34 int cm_magic; /* Self-check (NOT SAVED TO DISK) */
35 char cm_anon_type; /* Anonymous or author-visible */
36 char cm_format_type; /* Format type */
37 char *cm_fields[256]; /* Data fields */
38 unsigned int cm_flags; /* How to handle (NOT SAVED TO DISK) */
41 #define CTDLMESSAGE_MAGIC 0x159d
42 #define CM_SKIP_HOOKS 0x01 /* Don't run server-side handlers */
47 * Exit codes 101 through 109 are used for conditions in which
48 * we deliberately do NOT want the service to automatically
51 #define CTDLEXIT_CONFIG 101 /* Could not read citadel.config */
52 #define CTDLEXIT_CONTROL 102 /* Could not acquire lock */
53 #define CTDLEXIT_HOME 103 /* Citadel home directory not found */
54 #define CTDLEXIT_OOD 104 /* Out Of Date config - rerun setup */
55 #define CTDLEXIT_DB 105 /* Unable to initialize database */
61 * Here's the big one... the Citadel context structure.
63 * This structure keeps track of all information relating to a running
64 * session on the server. We keep one of these for each session thread.
68 struct CitContext *prev; /* Link to previous session in list */
69 struct CitContext *next; /* Link to next session in the list */
71 int state; /* thread state (see CON_ values below) */
72 int kill_me; /* Set to nonzero to flag for termination */
74 int cs_pid; /* session ID */
75 time_t lastcmd; /* time of last command executed */
76 time_t lastidle; /* For computing idle time */
78 char curr_user[USERNAME_SIZE]; /* name of current user */
79 int logged_in; /* logged in */
80 int internal_pgm; /* authenticated as internal program */
81 int nologin; /* not allowed to log in */
82 int is_local_socket; /* set to 1 if client is on unix domain sock */
83 int curr_view; /* The view type for the current user/room */
84 int is_master; /* Is this session logged in using the master user? */
86 char net_node[32] ;/* Is the client another Citadel server? */
87 time_t previous_login; /* Date/time of previous login */
88 char lastcmdname[5]; /* name of last command executed */
89 unsigned cs_flags; /* miscellaneous flags */
90 void (*h_command_function) (void) ; /* service command function */
91 void (*h_async_function) (void) ; /* do async msgs function */
92 void (*h_greeting_function) (void) ; /* service startup function */
93 int is_async; /* Nonzero if client accepts async msgs */
94 int async_waiting; /* Nonzero if there are async msgs waiting */
95 int input_waiting; /* Nonzero if there is client input waiting */
97 /* Client information */
98 int cs_clientdev; /* client developer ID */
99 int cs_clienttyp; /* client type code */
100 int cs_clientver; /* client version number */
101 char cs_clientname[32]; /* name of client software */
102 char cs_host[64]; /* host logged in from */
103 char cs_addr[64]; /* address logged in from */
105 /* The Internet type of thing */
106 char cs_inet_email[128]; /* Return address of outbound Internet mail */
107 char cs_inet_other_emails[1024]; /* User's other valid Internet email addresses */
108 char cs_inet_fn[128]; /* Friendly-name of outbound Internet mail */
110 FILE *download_fp; /* Fields relating to file transfer */
111 char download_desired_section[128];
114 char upl_path[PATH_MAX];
115 char upl_comment[256];
116 char upl_filedir[PATH_MAX];
120 struct ctdluser user; /* Database record buffers */
121 struct ctdlroom room;
123 /* Beginning of cryptography - session nonce */
124 char cs_nonce[NONCE_SIZE]; /* The nonce for this session's next auth transaction */
126 /* Redirect this session's output to a memory buffer? */
127 char *redirect_buffer; /* the buffer */
128 size_t redirect_len; /* length of data in buffer */
129 size_t redirect_alloc; /* length of allocated buffer */
136 char *output_buffer; /* hold output for one big dump */
139 /* A linked list of all instant messages sent to us. */
140 struct ExpressMessage *FirstExpressMessage;
141 int disable_exp; /* Set to 1 to disable incoming pages */
142 int newmail; /* Other sessions increment this */
144 /* Masqueraded values in the 'who is online' list */
145 char fake_username[USERNAME_SIZE];
146 char fake_hostname[64];
147 char fake_roomname[ROOMNAMELEN];
149 /* Preferred MIME formats */
150 char preferred_formats[256];
151 int msg4_dont_decode;
153 /* Dynamically allocated session data */
154 char *session_specific_data; /* Used by individual protocol modules */
155 struct cit_ical *CIT_ICAL; /* calendaring data */
156 struct ma_info *ma; /* multipart/alternative data */
157 const char* ServiceName; /**< whats our actual purpose? */
159 struct timeval client_expires_at; /** When this client will expire */
162 typedef struct CitContext t_context;
165 * Values for CitContext.state
167 * A session that is doing nothing is in CON_IDLE state. When activity
168 * is detected on the socket, it goes to CON_READY, indicating that it
169 * needs to have a worker thread bound to it. When a thread binds to
170 * the session, it goes to CON_EXECUTING and does its thing. When the
171 * transaction is finished, the thread sets it back to CON_IDLE and lets
175 CON_IDLE, /* This context is doing nothing */
176 CON_START, /* This context is starting up */
177 CON_READY, /* This context needs attention */
178 CON_EXECUTING /* This context is bound to a thread */
182 #define CS_STEALTH 1 /* stealth mode */
183 #define CS_CHAT 2 /* chat mode */
184 #define CS_POSTING 4 /* Posting */
186 struct CitContext *MyContext(void);
187 #define CC MyContext()
190 * This is the control record for the message base...
193 long MMhighest; /* highest message number in file */
194 unsigned MMflags; /* Global system flags */
195 long MMnextuser; /* highest user number on system */
196 long MMnextroom; /* highest room number on system */
197 int version; /* Server-hosted upgrade level */
198 int fulltext_wordbreaker; /* ID of wordbreaker in use */
199 long MMfulltext; /* highest message number indexed */
202 extern struct CitContext *ContextList;
203 extern int ScheduledShutdown;
204 extern struct CitControl CitControl;
206 struct ExpressMessage {
207 struct ExpressMessage *next;
208 time_t timestamp; /* When this message was sent */
209 unsigned flags; /* Special instructions */
210 char sender[256]; /* Name of sending user */
211 char sender_email[256]; /* Email or JID of sending user */
212 char *text; /* Message text (if applicable) */
215 #define EM_BROADCAST 1 /* Broadcast message */
216 #define EM_GO_AWAY 2 /* Server requests client log off */
217 #define EM_CHAT 4 /* Server requests client enter chat */
220 struct ChatLine *next;
224 char chat_username[USERNAME_SIZE];
225 char chat_room[ROOMNAMELEN];
229 * Various things we need to lock and unlock
272 * message transfer formats
275 MT_CITADEL, /* Citadel proprietary */
276 MT_RFC822, /* RFC822 */
277 MT_MIME, /* MIME-formatted message */
278 MT_DOWNLOAD, /* Download a component */
279 MT_SPEW_SECTION /* Download a component in a single operation */
283 * Message format types in the database
285 #define FMT_CITADEL 0 /* Citadel vari-format (proprietary) */
286 #define FMT_FIXED 1 /* Fixed format (proprietary) */
287 #define FMT_RFC822 4 /* Standard (headers are in M field) */
291 * Citadel DataBases (define one for each cdb we need to open)
294 CDB_MSGMAIN, /* message base */
295 CDB_USERS, /* user file */
296 CDB_ROOMS, /* room index */
297 CDB_FLOORTAB, /* floor index */
298 CDB_MSGLISTS, /* room message lists */
299 CDB_VISIT, /* user/room relationships */
300 CDB_DIRECTORY, /* address book directory */
301 CDB_USETABLE, /* network use table */
302 CDB_BIGMSGS, /* larger message bodies */
303 CDB_FULLTEXT, /* full text search index */
304 CDB_EUIDINDEX, /* locate msgs by EUID */
305 MAXCDB /* total number of CDB's defined */
315 * Event types can't be enum'ed, because they must remain consistent between
316 * builds (to allow for binary modules built somewhere else)
318 #define EVT_STOP 0 /* Session is terminating */
319 #define EVT_START 1 /* Session is starting */
320 #define EVT_LOGIN 2 /* A user is logging in */
321 #define EVT_NEWROOM 3 /* Changing rooms */
322 #define EVT_LOGOUT 4 /* A user is logging out */
323 #define EVT_SETPASS 5 /* Setting or changing password */
324 #define EVT_CMD 6 /* Called after each server command */
325 #define EVT_RWHO 7 /* An RWHO command is being executed */
326 #define EVT_ASYNC 8 /* Doing asynchronous messages */
327 #define EVT_STEALTH 9 /* Entering stealth mode */
328 #define EVT_UNSTEALTH 10 /* Exiting stealth mode */
330 #define EVT_TIMER 50 /* Timer events are called once per minute
331 and are not tied to any session */
332 #define EVT_HOUSE 51 /* as needed houskeeping stuff */
334 #define EVT_PURGEUSER 100 /* Deleting a user */
335 #define EVT_NEWUSER 102 /* Creating a user */
337 #define EVT_BEFOREREAD 200
338 #define EVT_BEFORESAVE 201
339 #define EVT_AFTERSAVE 202
340 #define EVT_SMTPSCAN 203 /* called before submitting a msg from SMTP */
341 /* Priority levels for paging functions (lower is better) */
343 XMSG_PRI_LOCAL, /* Other users on -this- server */
344 XMSG_PRI_REMOTE, /* Other users on a Citadel network (future) */
345 XMSG_PRI_FOREIGN, /* Contacts on foreign instant message hosts */
350 /* Defines the relationship of a user to a particular room */
356 unsigned int v_flags;
358 char v_answered[SIZ];
362 #define V_FORGET 1 /* User has zapped this room */
363 #define V_LOCKOUT 2 /* User is locked out of this room */
364 #define V_ACCESS 4 /* Access is granted to this room */
367 /* Supplementary data for a message on disk
368 * These are kept separate from the message itself for one of two reasons:
369 * 1. Either their values may change at some point after initial save, or
370 * 2. They are merely caches of data which exist somewhere else, for speed.
373 long meta_msgnum; /* Message number in *local* message base */
374 int meta_refcount; /* Number of rooms pointing to this msg */
375 char meta_content_type[64]; /* Cached MIME content-type */
376 long meta_rfc822_length; /* Cache of RFC822-translated msg length */
379 /* Calls to AdjRefCount() are queued and deferred, so the user doesn't
380 * have to wait for various disk-intensive operations to complete synchronously.
381 * This is the record format.
384 long arcq_msgnum; /* Message number being adjusted */
385 int arcq_delta; /* Adjustment ( usually 1 or -1 ) */
390 * Serialization routines use this struct to return a pointer and a length
399 * The S_USETABLE database is used in several modules now, so we define its format here.
408 /* Preferred field order */
409 /* ********** Important fields */
410 /* *************** Semi-important fields */
411 /* * Message text (MUST be last) */
412 #define FORDER "IPTAFONHRDBCEJGKLQSVWXZYUM"
414 #endif /* SERVER_H */