citadel/euidindex.c

   1 /*
   2  * $Id$
   3  *
   4  * Index messages by EUID per room.
   5  *
   6  */
   7
   8 #include "sysdep.h"
   9 #include <stdlib.h>
  10 #include <unistd.h>
  11 #include <stdio.h>
  12 #include <fcntl.h>
  13
  14 #if TIME_WITH_SYS_TIME
  15 # include <sys/time.h>
  16 # include <time.h>
  17 #else
  18 # if HAVE_SYS_TIME_H
  19 #  include <sys/time.h>
  20 # else
  21 #  include <time.h>
  22 # endif
  23 #endif
  24
  25
  26 #include <ctype.h>
  27 #include <string.h>
  28 #include <limits.h>
  29 #include <errno.h>
  30 #include <stdarg.h>
  31 #include <sys/stat.h>
  32 #include "citadel.h"
  33 #include "server.h"
  34 #include "serv_extensions.h"
  35 #include "database.h"
  36 #include "msgbase.h"
  37 #include "support.h"
  38 #include "sysdep_decls.h"
  39 #include "citserver.h"
  40 #include "room_ops.h"
  41 #include "user_ops.h"
  42 #include "file_ops.h"
  43 #include "config.h"
  44 #include "control.h"
  45 #include "tools.h"
  46 #include "euidindex.h"
  47
  48
  49 long locate_message_by_euid(char *euid, struct ctdlroom *qrbuf) {
  50         char *key;
  51         int key_len;
  52         struct cdbdata *cdb_euid;
  53         long msgnum = (-1L);
  54
  55         lprintf(CTDL_DEBUG, "Searching for EUID <%s> in <%s>\n", euid, qrbuf->QRname);
  56
  57         key_len = strlen(euid) + sizeof(long) + 1;
  58         key = malloc(key_len);
  59         memcpy(key, &qrbuf->QRnumber, sizeof(long));
  60         strcpy(&key[sizeof(long)], euid);
  61
  62         cdb_euid = cdb_fetch(CDB_EUIDINDEX, key, key_len);
  63         free(key);
  64
  65         if (cdb_euid == NULL) {
  66                 return(-1L);
  67         }
  68
  69         if (cdb_euid->len == sizeof(long)) {
  70                 msgnum = *(long *)cdb_euid->ptr;
  71         }
  72
  73         cdb_free(cdb_euid);
  74         lprintf(CTDL_DEBUG, "returning msgnum==%ld\n", msgnum);
  75         return(msgnum);
  76 }
  77
  78 void index_message_by_euid(char *euid, struct ctdlroom *qrbuf, long msgnum) {
  79         char *key;
  80         int key_len;
  81
  82         lprintf(CTDL_DEBUG, "Indexing message #%ld <%s> in <%s>\n", msgnum, euid, qrbuf->QRname);
  83
  84         key_len = strlen(euid) + sizeof(long) + 1;
  85         key = malloc(key_len);
  86         memcpy(key, &qrbuf->QRnumber, sizeof(long));
  87         strcpy(&key[sizeof(long)], euid);
  88
  89         cdb_store(CDB_EUIDINDEX, key, key_len, &msgnum, sizeof(long));
  90         free(key);
  91 }
  92
  93
  94
  95 /*
  96  * Called by rebuild_euid_index_for_room() to index one message.
  97  */
  98 void rebuild_euid_index_for_msg(long msgnum, void *userdata) {
  99         struct CtdlMessage *msg;
 100
 101         msg = CtdlFetchMessage(msgnum, 0);
 102         if (msg == NULL) return;
 103         if (msg->cm_fields['E'] != NULL) {
 104                 index_message_by_euid(msg->cm_fields['E'], &CC->room, msgnum);
 105         }
 106         CtdlFreeMessage(msg);
 107 }
 108
 109
 110 void rebuild_euid_index_for_room(struct ctdlroom *qrbuf, void *data) {
 111         static struct RoomProcList *rplist = NULL;
 112         struct RoomProcList *ptr;
 113         struct ctdlroom qr;
 114
 115         /* Lazy programming here.  Call this function as a ForEachRoom backend
 116          * in order to queue up the room names, or call it with a null room
 117          * to make it do the processing.
 118          */
 119         if (qrbuf != NULL) {
 120                 ptr = (struct RoomProcList *)
 121                         malloc(sizeof (struct RoomProcList));
 122                 if (ptr == NULL) return;
 123
 124                 safestrncpy(ptr->name, qrbuf->QRname, sizeof ptr->name);
 125                 ptr->next = rplist;
 126                 rplist = ptr;
 127                 return;
 128         }
 129
 130         while (rplist != NULL) {
 131                 if (getroom(&qr, rplist->name) == 0) {
 132                         lprintf(CTDL_DEBUG, "Rebuilding EUID index for <%s>\n", rplist->name);
 133                         usergoto(rplist->name, 0, 0, NULL, NULL);
 134                         CtdlForEachMessage(MSGS_ALL, 0L, NULL, NULL, rebuild_euid_index_for_msg, NULL);
 135                 }
 136                 ptr = rplist;
 137                 rplist = rplist->next;
 138                 free(ptr);
 139         }
 140 }
 141
 142
 143 /*
 144  * Globally rebuild the EUID indices in every room.
 145  */
 146 void rebuild_euid_index(void) {
 147         cdb_trunc(CDB_EUIDINDEX);
 148
 149         ForEachRoom(rebuild_euid_index_for_room, NULL);
 150         rebuild_euid_index_for_room(NULL, NULL);
 151 }