- added a new function to the database interface, cdb_close_cursor(). always
[citadel.git] / citadel / room_ops.c
index 48c7d00d2318577ddc787ca74e2eb925821f9105..51b8cf4c081da7fcb352eee4f716be68362698ce 100644 (file)
 #include <stdio.h>
 #include <sys/stat.h>
 #include <string.h>
-#include <time.h>
+
+#if TIME_WITH_SYS_TIME
+# include <sys/time.h>
+# include <time.h>
+#else
+# if HAVE_SYS_TIME_H
+#  include <sys/time.h>
+# else
+#  include <time.h>
+# endif
+#endif
+
 #include <limits.h>
 #include <errno.h>
 #include "citadel.h"
@@ -26,6 +37,8 @@
 #include "control.h"
 #include "tools.h"
 
+struct floor *floorcache[MAXFLOORS];
+
 /*
  * Generic routine for determining user access to rooms
  */
@@ -111,7 +124,7 @@ int CtdlRoomAccess(struct quickroom *roombuf, struct usersupp *userbuf)
        }
 
 NEWMSG:        /* By the way, we also check for the presence of new messages */
-       if ((roombuf->QRhighest) > (vbuf.v_lastseen)) {
+       if (is_msg_in_mset(vbuf.v_seen, roombuf->QRhighest) == 0) {
                retval = retval | UA_HASNEWMSGS;
        }
        return (retval);
@@ -278,6 +291,32 @@ void lgetfloor(struct floor *flbuf, int floor_num)
 }
 
 
+/*
+ * cgetfloor()  -  Get floor record from *cache* (loads from disk if needed)
+ *    
+ * This is strictly a performance hack.
+ */
+struct floor *cgetfloor(int floor_num) {
+       static int initialized = 0;
+       int i;
+
+       if (initialized == 0) {
+               for (i=0; i<MAXFLOORS; ++i) {
+                       floorcache[floor_num] = NULL;
+               }
+       initialized = 1;
+       }
+       
+       if (floorcache[floor_num] == NULL) {
+               floorcache[floor_num] = mallok(sizeof(struct floor));
+               getfloor(floorcache[floor_num], floor_num);
+       }
+
+       return(floorcache[floor_num]);
+}
+
+
+
 /*
  * putfloor()  -  store floor data on disk
  */
@@ -285,6 +324,12 @@ void putfloor(struct floor *flbuf, int floor_num)
 {
        cdb_store(CDB_FLOORTAB, &floor_num, sizeof(int),
                  flbuf, sizeof(struct floor));
+
+       /* If we've cached this, clear it out, 'cuz it's WRONG now! */
+       if (floorcache[floor_num] != NULL) {
+               phree(floorcache[floor_num]);
+               floorcache[floor_num] = NULL;
+       }
 }
 
 
@@ -309,7 +354,6 @@ void ForEachRoom(void (*CallBack) (struct quickroom *EachRoom, void *out_data),
        struct quickroom qrbuf;
        struct cdbdata *cdbqr;
 
-       cdb_begin_transaction();
        cdb_rewind(CDB_QUICKROOM);
 
        while (cdbqr = cdb_next_item(CDB_QUICKROOM), cdbqr != NULL) {
@@ -322,7 +366,6 @@ void ForEachRoom(void (*CallBack) (struct quickroom *EachRoom, void *out_data),
                if (qrbuf.QRflags & QR_INUSE)
                        (*CallBack)(&qrbuf, in_data);
        }
-       cdb_end_transaction();
 }
 
 
@@ -664,7 +707,7 @@ void usergoto(char *where, int display_result, int *retmsgs, int *retnew)
        if (num_msgs > 0) for (a = 0; a < num_msgs; ++a) {
                if (msglist[a] > 0L) {
                        ++total_messages;
-                       if (msglist[a] > vbuf.v_lastseen) {
+                       if (is_msg_in_mset(vbuf.v_seen, msglist[a]) == 0) {
                                ++new_messages;
                        }
                }
@@ -767,7 +810,8 @@ void cmd_goto(char *gargs)
                if (ok == 1) {
                        if ((QRscratch.QRflags & QR_PASSWORDED) &&
                            ((ra & UA_KNOWN) == 0) &&
-                           (strcasecmp(QRscratch.QRpasswd, password))
+                           (strcasecmp(QRscratch.QRpasswd, password)) &&
+                           (CC->usersupp.axlevel < 6)
                            ) {
                                cprintf("%d wrong or missing passwd\n",
                                        ERROR + PASSWORD_REQUIRED);
@@ -775,7 +819,9 @@ void cmd_goto(char *gargs)
                        } else if ((QRscratch.QRflags & QR_PRIVATE) &&
                                   ((QRscratch.QRflags & QR_PASSWORDED) == 0) &&
                                   ((QRscratch.QRflags & QR_GUESSNAME) == 0) &&
-                                  ((ra & UA_KNOWN) == 0)) {
+                                  ((ra & UA_KNOWN) == 0) &&
+                                  (CC->usersupp.axlevel < 6)
+                                  ) {
                                goto NOPE;
                        } else {
                                usergoto(towhere, 1, NULL, NULL);
@@ -793,7 +839,6 @@ void cmd_whok(void)
        struct usersupp temp;
        struct cdbdata *cdbus;
 
-       cdb_begin_transaction();
        getuser(&CC->usersupp, CC->curr_user);
        if (CtdlAccessCheck(ac_room_aide)) return;
 
@@ -809,7 +854,6 @@ void cmd_whok(void)
                    )
                        cprintf("%s\n", temp.fullname);
        }
-       cdb_end_transaction();
        cprintf("000\n");
 }
 
@@ -912,6 +956,7 @@ void cmd_getr(void)
 void cmd_setr(char *args)
 {
        char buf[SIZ];
+       struct floor *fl;
        struct floor flbuf;
        char old_name[ROOMNAMELEN];
        int old_floor;
@@ -932,8 +977,8 @@ void cmd_setr(char *args)
 
 
        if (num_parms(args) >= 6) {
-               getfloor(&flbuf, extract_int(args, 5));
-               if ((flbuf.f_flags & F_INUSE) == 0) {
+               fl = cgetfloor(extract_int(args, 5));
+               if ((fl->f_flags & F_INUSE) == 0) {
                        cprintf("%d Invalid floor number.\n",
                                ERROR + INVALID_FLOOR_OPERATION);
                        return;
@@ -1152,6 +1197,49 @@ void delete_room(struct quickroom *qrbuf)
 }
 
 
+
+/*
+ * Check access control for deleting a room
+ */
+int CtdlDoIHavePermissionToDeleteThisRoom(struct quickroom *qr) {
+
+       if ((!(CC->logged_in)) && (!(CC->internal_pgm))) {
+               return(0);
+       }
+
+       if (is_noneditable(qr)) {
+               return(0);
+       }
+
+       /*
+        * For mailboxes, check stuff
+        */
+       if (qr->QRflags & QR_MAILBOX) {
+
+               if (strlen(qr->QRname) < 12) return(0); /* bad name */
+
+               if (atol(qr->QRname) != CC->usersupp.usernum) {
+                       return(0);      /* not my room */
+               }
+
+               /* Can't delete your Mail> room */
+               if (!strcasecmp(&qr->QRname[12], MAILROOM)) return(0);
+
+               /* Otherwise it's ok */
+               return(1);
+       }
+
+       /*
+        * For normal rooms, just check for aide or room aide status.
+        */
+       else {
+               return(is_room_aide());
+       }
+
+       /* Should never get to this point, but to keep the compiler quiet... */
+       return(0);
+}
+
 /*
  * aide command: kill the current room
  */
@@ -1163,10 +1251,8 @@ void cmd_kill(char *argbuf)
 
        kill_ok = extract_int(argbuf, 0);
 
-       if (CtdlAccessCheck(ac_room_aide)) return;
-
-       if (is_noneditable(&CC->quickroom)) {
-               cprintf("%d Can't edit this room.\n", ERROR + NOT_HERE);
+       if (CtdlDoIHavePermissionToDeleteThisRoom(&CC->quickroom) == 0) {
+               cprintf("%d Can't delete this room.\n", ERROR + NOT_HERE);
                return;
        }
        if (kill_ok) {
@@ -1188,12 +1274,14 @@ void cmd_kill(char *argbuf)
 /*
  * Internal code to create a new room (returns room flags)
  *
- * Room types:  0=public, 1=guessname, 2=passworded, 3=inv-only, 4=mailbox
+ * Room types:  0=public, 1=guessname, 2=passworded, 3=inv-only,
+ *              4=mailbox, 5=mailbox, but caller supplies namespace
  */
 unsigned create_room(char *new_room_name,
                     int new_room_type,
                     char *new_room_pass,
-                    int new_room_floor)
+                    int new_room_floor,
+                    int really_create)
 {
 
        struct quickroom qrbuf;
@@ -1206,20 +1294,29 @@ unsigned create_room(char *new_room_name,
                return (0);     /* already exists */
        }
 
+
        memset(&qrbuf, 0, sizeof(struct quickroom));
-       safestrncpy(qrbuf.QRname, new_room_name, sizeof qrbuf.QRname);
        safestrncpy(qrbuf.QRpasswd, new_room_pass, sizeof qrbuf.QRpasswd);
        qrbuf.QRflags = QR_INUSE;
-       qrbuf.QRnumber = get_new_room_number();
        if (new_room_type > 0)
                qrbuf.QRflags = (qrbuf.QRflags | QR_PRIVATE);
        if (new_room_type == 1)
                qrbuf.QRflags = (qrbuf.QRflags | QR_GUESSNAME);
        if (new_room_type == 2)
                qrbuf.QRflags = (qrbuf.QRflags | QR_PASSWORDED);
-       if (new_room_type == 4)
+       if ( (new_room_type == 4) || (new_room_type == 5) )
                qrbuf.QRflags = (qrbuf.QRflags | QR_MAILBOX);
 
+       /* If the user is requesting a personal room, set up the room
+        * name accordingly (prepend the user number)
+        */
+       if (new_room_type == 4) {
+               MailboxName(qrbuf.QRname, &CC->usersupp, new_room_name);
+       }
+       else {
+               safestrncpy(qrbuf.QRname, new_room_name, sizeof qrbuf.QRname);
+       }
+
        /* If the room is private, and the system administrator has elected
         * to automatically grant room aide privileges, do so now; otherwise,
         * set the room aide to undefined.
@@ -1230,6 +1327,13 @@ unsigned create_room(char *new_room_name,
                qrbuf.QRroomaide = (-1L);
        }
 
+       /* 
+        * If the caller is only interested in testing whether this will work,
+        * return now without creating the room.
+        */
+       if (!really_create) return (qrbuf.QRflags);
+
+       qrbuf.QRnumber = get_new_room_number();
        qrbuf.QRhighest = 0L;   /* No messages in this room yet */
        time(&qrbuf.QRgen);     /* Use a timestamp as the generation number */
        qrbuf.QRfloor = new_room_floor;
@@ -1268,7 +1372,7 @@ void cmd_cre8(char *args)
        char aaa[SIZ];
        unsigned newflags;
        struct quickroom qrbuf;
-       struct floor flbuf;
+       struct floor *fl;
 
        cre8_ok = extract_int(args, 0);
        extract(new_room_name, args, 1);
@@ -1290,8 +1394,8 @@ void cmd_cre8(char *args)
        }
 
        if (num_parms(args) >= 5) {
-               getfloor(&flbuf, extract_int(args, 4));
-               if ((flbuf.f_flags & F_INUSE) == 0) {
+               fl = cgetfloor(extract_int(args, 4));
+               if ((fl->f_flags & F_INUSE) == 0) {
                        cprintf("%d Invalid floor number.\n",
                                ERROR + INVALID_FLOOR_OPERATION);
                        return;
@@ -1318,17 +1422,10 @@ void cmd_cre8(char *args)
                return;
        }
 
-       /* If the user is requesting a personal room, set up the room
-        * name accordingly (prepend the user number)
-        */
-       if (new_room_type == 4) {
-               sprintf(aaa, "%010ld.%s",
-                       CC->usersupp.usernum, new_room_name);
-               strcpy(new_room_name, aaa);
-       }
-
        /* Check to make sure the requested room name doesn't already exist */
-       if (getroom(&qrbuf, new_room_name) == 0) {
+       newflags = create_room(new_room_name,
+                          new_room_type, new_room_pass, new_room_floor, 0);
+       if (newflags == 0) {
                cprintf("%d '%s' already exists.\n",
                        ERROR + ALREADY_EXISTS, qrbuf.QRname);
                return;
@@ -1339,8 +1436,10 @@ void cmd_cre8(char *args)
                return;
        }
 
+       /* If we reach this point, the room needs to be created. */
+
        newflags = create_room(new_room_name,
-                          new_room_type, new_room_pass, new_room_floor);
+                          new_room_type, new_room_pass, new_room_floor, 1);
 
        /* post a message in Aide> describing the new room */
        safestrncpy(aaa, new_room_name, sizeof aaa);