citadel/modules/migrate/serv_migrate.c

   1 /*
   2  * This module dumps and/or loads the Citadel database in XML format.
   3  *
   4  * Copyright (c) 1987-2020 by the citadel.org team
   5  *
   6  * This program is open source software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 3.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  */
  14
  15 /*
  16  * Explanation of <progress> tags:
  17  *
  18  * 0%              nothing
  19  * 2%              finished exporting configuration
  20  * 7%              finished exporting users
  21  * 12%             finished exporting openids
  22  * 17%             finished exporting rooms
  23  * 18%             finished exporting floors
  24  * 25%             finished exporting visits
  25  * 100%            finished exporting messages
  26  */
  27
  28 #include "sysdep.h"
  29 #include <stdlib.h>
  30 #include <unistd.h>
  31 #include <stdio.h>
  32 #include <fcntl.h>
  33 #include <signal.h>
  34 #include <pwd.h>
  35 #include <errno.h>
  36 #include <sys/types.h>
  37
  38 #if TIME_WITH_SYS_TIME
  39 # include <sys/time.h>
  40 # include <time.h>
  41 #else
  42 # if HAVE_SYS_TIME_H
  43 #  include <sys/time.h>
  44 # else
  45 #  include <time.h>
  46 # endif
  47 #endif
  48
  49 #include <sys/wait.h>
  50 #include <string.h>
  51 #include <ctype.h>
  52 #include <limits.h>
  53 #include <expat.h>
  54 #include <libcitadel.h>
  55 #include "citadel.h"
  56 #include "server.h"
  57 #include "citserver.h"
  58 #include "support.h"
  59 #include "config.h"
  60 #include "database.h"
  61 #include "msgbase.h"
  62 #include "user_ops.h"
  63 #include "euidindex.h"
  64 #include "ctdl_module.h"
  65
  66 #define END_OF_MESSAGE  "---eom---dbd---"
  67
  68 char migr_tempfilename1[PATH_MAX];
  69 char migr_tempfilename2[PATH_MAX];
  70 FILE *migr_global_message_list;
  71 int total_msgs = 0;
  72 char *ikey = NULL;                      // If we're importing a config key we store it here.
  73
  74
  75 /******************************************************************************
  76  *        Code which implements the export appears in this section            *
  77  ******************************************************************************/
  78
  79 /*
  80  * Output a string to the client with these characters escaped:  & < > " '
  81  */
  82 void xml_strout(char *str) {
  83
  84         char *c = str;
  85
  86         if (str == NULL) {
  87                 return;
  88         }
  89
  90         while (*c != 0) {
  91                 if (*c == '\"') {
  92                         client_write(HKEY("&quot;"));
  93                 }
  94                 else if (*c == '\'') {
  95                         client_write(HKEY("&apos;"));
  96                 }
  97                 else if (*c == '<') {
  98                         client_write(HKEY("&lt;"));
  99                 }
 100                 else if (*c == '>') {
 101                         client_write(HKEY("&gt;"));
 102                 }
 103                 else if (*c == '&') {
 104                         client_write(HKEY("&amp;"));
 105                 }
 106                 else {
 107                         client_write(c, 1);
 108                 }
 109                 ++c;
 110         }
 111 }
 112
 113
 114 /*
 115  * Export a user record as XML
 116  */
 117 void migr_export_users_backend(char *username, void *data) {
 118
 119         struct ctdluser u;
 120         if (CtdlGetUser(&u, username) != 0) {
 121                 return;
 122         }
 123
 124         client_write(HKEY("<user>\n"));
 125         cprintf("<u_version>%d</u_version>\n", u.version);
 126         cprintf("<u_uid>%ld</u_uid>\n", (long)u.uid);
 127         client_write(HKEY("<u_password>"));     xml_strout(u.password);         client_write(HKEY("</u_password>\n"));
 128         cprintf("<u_flags>%u</u_flags>\n", u.flags);
 129         cprintf("<u_timescalled>%ld</u_timescalled>\n", u.timescalled);
 130         cprintf("<u_posted>%ld</u_posted>\n", u.posted);
 131         cprintf("<u_axlevel>%d</u_axlevel>\n", u.axlevel);
 132         cprintf("<u_usernum>%ld</u_usernum>\n", u.usernum);
 133         cprintf("<u_lastcall>%ld</u_lastcall>\n", (long)u.lastcall);
 134         cprintf("<u_USuserpurge>%d</u_USuserpurge>\n", u.USuserpurge);
 135         client_write(HKEY("<u_fullname>"));     xml_strout(u.fullname);         client_write(HKEY("</u_fullname>\n"));
 136         cprintf("<u_msgnum_bio>%ld</u_msgnum_bio>\n", u.msgnum_bio);
 137         cprintf("<u_msgnum_pic>%ld</u_msgnum_pic>\n", u.msgnum_pic);
 138         cprintf("<u_emailaddrs>%s</u_emailaddrs>\n", u.emailaddrs);
 139         cprintf("<u_msgnum_inboxrules>%ld</u_msgnum_inboxrules>\n", u.msgnum_inboxrules);
 140         client_write(HKEY("</user>\n"));
 141 }
 142
 143
 144 void migr_export_users(void) {
 145         ForEachUser(migr_export_users_backend, NULL);
 146 }
 147
 148
 149 void migr_export_room_msg(long msgnum, void *userdata) {
 150         cprintf("%ld\n", msgnum);
 151         fprintf(migr_global_message_list, "%ld\n", msgnum);
 152 }
 153
 154
 155 void migr_export_rooms_backend(struct ctdlroom *buf, void *data) {
 156         client_write(HKEY("<room>\n"));
 157         client_write(HKEY("<QRname>")); xml_strout(buf->QRname);        client_write(HKEY("</QRname>\n"));
 158         client_write(HKEY("<QRpasswd>"));       xml_strout(buf->QRpasswd);      client_write(HKEY("</QRpasswd>\n"));
 159         cprintf("<QRroomaide>%ld</QRroomaide>\n", buf->QRroomaide);
 160         cprintf("<QRhighest>%ld</QRhighest>\n", buf->QRhighest);
 161         cprintf("<QRgen>%ld</QRgen>\n", (long)buf->QRgen);
 162         cprintf("<QRflags>%u</QRflags>\n", buf->QRflags);
 163         if (buf->QRflags & QR_DIRECTORY) {
 164                 client_write(HKEY("<QRdirname>"));
 165                 xml_strout(buf->QRdirname);
 166                 client_write(HKEY("</QRdirname>\n"));
 167         }
 168         cprintf("<QRfloor>%d</QRfloor>\n", buf->QRfloor);
 169         cprintf("<QRmtime>%ld</QRmtime>\n", (long)buf->QRmtime);
 170         cprintf("<QRexpire_mode>%d</QRexpire_mode>\n", buf->QRep.expire_mode);
 171         cprintf("<QRexpire_value>%d</QRexpire_value>\n", buf->QRep.expire_value);
 172         cprintf("<QRnumber>%ld</QRnumber>\n", buf->QRnumber);
 173         cprintf("<QRorder>%d</QRorder>\n", buf->QRorder);
 174         cprintf("<QRflags2>%u</QRflags2>\n", buf->QRflags2);
 175         cprintf("<QRdefaultview>%d</QRdefaultview>\n", buf->QRdefaultview);
 176         cprintf("<msgnum_info>%ld</msgnum_info>\n", buf->msgnum_info);
 177         cprintf("<msgnum_pic>%ld</msgnum_pic>\n", buf->msgnum_pic);
 178         client_write(HKEY("</room>\n"));
 179
 180         /* message list goes inside this tag */
 181
 182         CtdlGetRoom(&CC->room, buf->QRname);
 183         client_write(HKEY("<room_messages>"));
 184         client_write(HKEY("<FRname>")); xml_strout(CC->room.QRname);    client_write(HKEY("</FRname>\n"));
 185         client_write(HKEY("<FRmsglist>"));
 186         CtdlForEachMessage(MSGS_ALL, 0L, NULL, NULL, NULL, migr_export_room_msg, NULL);
 187         client_write(HKEY("</FRmsglist>\n"));
 188         client_write(HKEY("</room_messages>\n"));
 189
 190
 191 }
 192
 193
 194 void migr_export_rooms(void) {
 195         char cmd[SIZ];
 196         migr_global_message_list = fopen(migr_tempfilename1, "w");
 197         if (migr_global_message_list != NULL) {
 198                 CtdlForEachRoom(migr_export_rooms_backend, NULL);
 199                 fclose(migr_global_message_list);
 200         }
 201
 202         /*
 203          * Process the 'global' message list.  (Sort it and remove dups.
 204          * Dups are ok because a message may be in more than one room, but
 205          * this will be handled by exporting the reference count, not by
 206          * exporting the message multiple times.)
 207          */
 208         snprintf(cmd, sizeof cmd, "sort -n <%s >%s", migr_tempfilename1, migr_tempfilename2);
 209         if (system(cmd) != 0) syslog(LOG_ALERT, "Error %d", errno);
 210         snprintf(cmd, sizeof cmd, "uniq <%s >%s", migr_tempfilename2, migr_tempfilename1);
 211         if (system(cmd) != 0) syslog(LOG_ALERT, "Error %d", errno);
 212
 213
 214         snprintf(cmd, sizeof cmd, "wc -l %s", migr_tempfilename1);
 215         FILE *fp = popen(cmd, "r");
 216         if (fp) {
 217                 fgets(cmd, sizeof cmd, fp);
 218                 pclose(fp);
 219                 total_msgs = atoi(cmd);
 220         }
 221         else {
 222                 total_msgs = 1; // any nonzero just to keep it from barfing
 223         }
 224         syslog(LOG_DEBUG, "Total messages to be exported: %d", total_msgs);
 225 }
 226
 227
 228 void migr_export_floors(void) {
 229         struct floor qfbuf, *buf;
 230         int i;
 231
 232         for (i=0; i < MAXFLOORS; ++i) {
 233                 client_write(HKEY("<floor>\n"));
 234                 cprintf("<f_num>%d</f_num>\n", i);
 235                 CtdlGetFloor(&qfbuf, i);
 236                 buf = &qfbuf;
 237                 cprintf("<f_flags>%u</f_flags>\n", buf->f_flags);
 238                 client_write(HKEY("<f_name>")); xml_strout(buf->f_name); client_write(HKEY("</f_name>\n"));
 239                 cprintf("<f_ref_count>%d</f_ref_count>\n", buf->f_ref_count);
 240                 cprintf("<f_ep_expire_mode>%d</f_ep_expire_mode>\n", buf->f_ep.expire_mode);
 241                 cprintf("<f_ep_expire_value>%d</f_ep_expire_value>\n", buf->f_ep.expire_value);
 242                 client_write(HKEY("</floor>\n"));
 243         }
 244 }
 245
 246
 247 /*
 248  * Return nonzero if the supplied string contains only characters which are valid in a sequence set.
 249  */
 250 int is_sequence_set(char *s) {
 251         if (!s) return(0);
 252
 253         char *c = s;
 254         char ch;
 255         while (ch = *c++, ch) {
 256                 if (!strchr("0123456789*,:", ch)) {
 257                         return(0);
 258                 }
 259         }
 260         return(1);
 261 }
 262
 263
 264 /*
 265  *  Traverse the visits file...
 266  */
 267 void migr_export_visits(void) {
 268         visit vbuf;
 269         struct cdbdata *cdbv;
 270
 271         cdb_rewind(CDB_VISIT);
 272
 273         while (cdbv = cdb_next_item(CDB_VISIT), cdbv != NULL) {
 274                 memset(&vbuf, 0, sizeof(visit));
 275                 memcpy(&vbuf, cdbv->ptr,
 276                        ((cdbv->len > sizeof(visit)) ?
 277                         sizeof(visit) : cdbv->len));
 278                 cdb_free(cdbv);
 279
 280                 client_write(HKEY("<visit>\n"));
 281                 cprintf("<v_roomnum>%ld</v_roomnum>\n", vbuf.v_roomnum);
 282                 cprintf("<v_roomgen>%ld</v_roomgen>\n", vbuf.v_roomgen);
 283                 cprintf("<v_usernum>%ld</v_usernum>\n", vbuf.v_usernum);
 284
 285                 client_write(HKEY("<v_seen>"));
 286                 if ( (!IsEmptyStr(vbuf.v_seen)) && (is_sequence_set(vbuf.v_seen)) ) {
 287                         xml_strout(vbuf.v_seen);
 288                 }
 289                 else {
 290                         cprintf("%ld", vbuf.v_lastseen);
 291                 }
 292                 client_write(HKEY("</v_seen>"));
 293
 294                 if ( (!IsEmptyStr(vbuf.v_answered)) && (is_sequence_set(vbuf.v_answered)) ) {
 295                         client_write(HKEY("<v_answered>"));
 296                         xml_strout(vbuf.v_answered);
 297                         client_write(HKEY("</v_answered>\n"));
 298                 }
 299
 300                 cprintf("<v_flags>%u</v_flags>\n", vbuf.v_flags);
 301                 cprintf("<v_view>%d</v_view>\n", vbuf.v_view);
 302                 client_write(HKEY("</visit>\n"));
 303         }
 304 }
 305
 306
 307 void migr_export_message(long msgnum) {
 308         struct MetaData smi;
 309         struct CtdlMessage *msg;
 310         struct ser_ret smr;
 311
 312         /* We can use a static buffer here because there will never be more than
 313          * one of this operation happening at any given time, and it's really best
 314          * to just keep it allocated once instead of torturing malloc/free.
 315          * Call this function with msgnum "-1" to free the buffer when finished.
 316          */
 317         static int encoded_alloc = 0;
 318         static char *encoded_msg = NULL;
 319
 320         if (msgnum < 0) {
 321                 if ((encoded_alloc == 0) && (encoded_msg != NULL)) {
 322                         free(encoded_msg);
 323                         encoded_alloc = 0;
 324                         encoded_msg = NULL;
 325                 }
 326                 return;
 327         }
 328
 329         /* Ok, here we go ... */
 330
 331         msg = CtdlFetchMessage(msgnum, 1);
 332         if (msg == NULL) return;        /* fail silently */
 333
 334         client_write(HKEY("<message>\n"));
 335         GetMetaData(&smi, msgnum);
 336         cprintf("<msg_msgnum>%ld</msg_msgnum>\n", msgnum);
 337         cprintf("<msg_meta_refcount>%d</msg_meta_refcount>\n", smi.meta_refcount);
 338         cprintf("<msg_meta_rfc822_length>%ld</msg_meta_rfc822_length>\n", smi.meta_rfc822_length);
 339         client_write(HKEY("<msg_meta_content_type>")); xml_strout(smi.meta_content_type); client_write(HKEY("</msg_meta_content_type>\n"));
 340
 341         client_write(HKEY("<msg_text>"));
 342         CtdlSerializeMessage(&smr, msg);
 343         CM_Free(msg);
 344
 345         /* Predict the buffer size we need.  Expand the buffer if necessary. */
 346         int encoded_len = smr.len * 15 / 10 ;
 347         if (encoded_len > encoded_alloc) {
 348                 encoded_alloc = encoded_len;
 349                 encoded_msg = realloc(encoded_msg, encoded_alloc);
 350         }
 351
 352         if (encoded_msg == NULL) {
 353                 /* Questionable hack that hopes it'll work next time and we only lose one message */
 354                 encoded_alloc = 0;
 355         }
 356         else {
 357                 /* Once we do the encoding we know the exact size */
 358                 encoded_len = CtdlEncodeBase64(encoded_msg, (char *)smr.ser, smr.len, 1);
 359                 client_write(encoded_msg, encoded_len);
 360         }
 361
 362         free(smr.ser);
 363
 364         client_write(HKEY("</msg_text>\n"));
 365         client_write(HKEY("</message>\n"));
 366 }
 367
 368
 369 void migr_export_openids(void) {
 370         struct cdbdata *cdboi;
 371         long usernum;
 372         char url[512];
 373
 374         cdb_rewind(CDB_EXTAUTH);
 375         while (cdboi = cdb_next_item(CDB_EXTAUTH), cdboi != NULL) {
 376                 if (cdboi->len > sizeof(long)) {
 377                         client_write(HKEY("<openid>\n"));
 378                         memcpy(&usernum, cdboi->ptr, sizeof(long));
 379                         snprintf(url, sizeof url, "%s", (cdboi->ptr)+sizeof(long) );
 380                         client_write(HKEY("<oid_url>"));
 381                         xml_strout(url);
 382                         client_write(HKEY("</oid_url>\n"));
 383                         cprintf("<oid_usernum>%ld</oid_usernum>\n", usernum);
 384                         client_write(HKEY("</openid>\n"));
 385                 }
 386                 cdb_free(cdboi);
 387         }
 388 }
 389
 390
 391 void migr_export_configs(void) {
 392         struct cdbdata *cdbcfg;
 393         int keylen = 0;
 394         char *key = NULL;
 395         char *value = NULL;
 396
 397         cdb_rewind(CDB_CONFIG);
 398         while (cdbcfg = cdb_next_item(CDB_CONFIG), cdbcfg != NULL) {
 399
 400                 keylen = strlen(cdbcfg->ptr);
 401                 key = cdbcfg->ptr;
 402                 value = cdbcfg->ptr + keylen + 1;
 403
 404                 client_write("<config key=\"", 13);
 405                 xml_strout(key);
 406                 client_write("\">", 2);
 407                 xml_strout(value);
 408                 client_write("</config>\n", 10);
 409                 cdb_free(cdbcfg);
 410         }
 411 }
 412
 413
 414 void migr_export_messages(void) {
 415         char buf[SIZ];
 416         long msgnum;
 417         int count = 0;
 418         int progress = 0;
 419         int prev_progress = 0;
 420         CitContext *Ctx;
 421
 422         Ctx = CC;
 423         migr_global_message_list = fopen(migr_tempfilename1, "r");
 424         if (migr_global_message_list != NULL) {
 425                 syslog(LOG_INFO, "Opened %s", migr_tempfilename1);
 426                 while ((Ctx->kill_me == 0) &&
 427                        (fgets(buf, sizeof(buf), migr_global_message_list) != NULL)) {
 428                         msgnum = atol(buf);
 429                         if (msgnum > 0L) {
 430                                 migr_export_message(msgnum);
 431                                 ++count;
 432                         }
 433                         progress = (count * 74 / total_msgs) + 25 ;
 434                         if ((progress > prev_progress) && (progress < 100)) {
 435                                 cprintf("<progress>%d</progress>\n", progress);
 436                         }
 437                         prev_progress = progress;
 438                 }
 439                 fclose(migr_global_message_list);
 440         }
 441         if (Ctx->kill_me == 0) {
 442                 syslog(LOG_INFO, "Exported %d messages.", count);
 443         }
 444         else {
 445                 syslog(LOG_ERR, "Export aborted due to client disconnect!");
 446         }
 447
 448         migr_export_message(-1L);       /* This frees the encoding buffer */
 449 }
 450
 451
 452 void migr_do_export(void) {
 453         CitContext *Ctx;
 454
 455         Ctx = CC;
 456         cprintf("%d Exporting all Citadel databases.\n", LISTING_FOLLOWS);
 457         Ctx->dont_term = 1;
 458
 459         client_write(HKEY("<?xml version=\"1.0\" encoding=\"UTF-8\" ?>\n"));
 460         client_write(HKEY("<citadel_migrate_data>\n"));
 461         cprintf("<version>%d</version>\n", REV_LEVEL);
 462         cprintf("<progress>%d</progress>\n", 0);
 463
 464         /* export the configuration database */
 465         migr_export_configs();
 466         cprintf("<progress>%d</progress>\n", 2);
 467
 468         if (Ctx->kill_me == 0)  migr_export_users();
 469         cprintf("<progress>%d</progress>\n", 7);
 470         if (Ctx->kill_me == 0)  migr_export_openids();
 471         cprintf("<progress>%d</progress>\n", 12);
 472         if (Ctx->kill_me == 0)  migr_export_rooms();
 473         cprintf("<progress>%d</progress>\n", 17);
 474         if (Ctx->kill_me == 0)  migr_export_floors();
 475         cprintf("<progress>%d</progress>\n", 18);
 476         if (Ctx->kill_me == 0)  migr_export_visits();
 477         cprintf("<progress>%d</progress>\n", 25);
 478         if (Ctx->kill_me == 0)  migr_export_messages();
 479         client_write(HKEY("</citadel_migrate_data>\n"));
 480         cprintf("<progress>%d</progress>\n", 100);
 481         client_write(HKEY("000\n"));
 482         Ctx->dont_term = 0;
 483 }
 484
 485
 486 /******************************************************************************
 487  *                              Import code                                   *
 488  *    Here's the code that implements the import side.  It's going to end up  *
 489  *        being one big loop with lots of global variables.  I don't care.    *
 490  * You wouldn't run multiple concurrent imports anyway.  If this offends your *
 491  * delicate sensibilities  then go rewrite it in Ruby on Rails or something.  *
 492  ******************************************************************************/
 493
 494
 495 int citadel_migrate_data = 0;           /* Are we inside a <citadel_migrate_data> tag pair? */
 496 StrBuf *migr_chardata = NULL;
 497 StrBuf *migr_MsgData = NULL;
 498 struct ctdluser usbuf;
 499 struct ctdlroom qrbuf;
 500 char openid_url[512];
 501 long openid_usernum = 0;
 502 char FRname[ROOMNAMELEN];
 503 struct floor flbuf;
 504 int floornum = 0;
 505 visit vbuf;
 506 struct MetaData smi;
 507 long import_msgnum = 0;
 508
 509 /*
 510  * This callback stores up the data which appears in between tags.
 511  */
 512 void migr_xml_chardata(void *data, const XML_Char *s, int len)
 513 {
 514         StrBufAppendBufPlain(migr_chardata, s, len, 0);
 515 }
 516
 517
 518 void migr_xml_start(void *data, const char *el, const char **attr) {
 519         int i;
 520
 521         /*** GENERAL STUFF ***/
 522
 523         /* Reset chardata_len to zero and init buffer */
 524         FlushStrBuf(migr_chardata);
 525         FlushStrBuf(migr_MsgData);
 526
 527         if (!strcasecmp(el, "citadel_migrate_data")) {
 528                 ++citadel_migrate_data;
 529
 530                 /* As soon as it looks like the input data is a genuine Citadel XML export,
 531                  * whack the existing database on disk to make room for the new one.
 532                  */
 533                 if (citadel_migrate_data == 1) {
 534                         for (i = 0; i < MAXCDB; ++i) {
 535                                 cdb_trunc(i);
 536                         }
 537                 }
 538                 return;
 539         }
 540
 541         if (citadel_migrate_data != 1) {
 542                 syslog(LOG_ALERT, "Out-of-sequence tag <%s> detected.  Warning: ODD-DATA!", el);
 543                 return;
 544         }
 545
 546         /* When we begin receiving XML for one of these record types, clear out the associated
 547          * buffer so we don't accidentally carry over any data from a previous record.
 548          */
 549         if (!strcasecmp(el, "user"))                    memset(&usbuf, 0, sizeof (struct ctdluser));
 550         else if (!strcasecmp(el, "openid"))             memset(openid_url, 0, sizeof openid_url);
 551         else if (!strcasecmp(el, "room"))               memset(&qrbuf, 0, sizeof (struct ctdlroom));
 552         else if (!strcasecmp(el, "room_messages"))      memset(FRname, 0, sizeof FRname);
 553         else if (!strcasecmp(el, "floor"))              memset(&flbuf, 0, sizeof (struct floor));
 554         else if (!strcasecmp(el, "visit"))              memset(&vbuf, 0, sizeof (visit));
 555
 556         else if (!strcasecmp(el, "message")) {
 557                 memset(&smi, 0, sizeof (struct MetaData));
 558                 import_msgnum = 0;
 559         }
 560         else if (!strcasecmp(el, "config")) {
 561                 if (ikey != NULL) {
 562                         free(ikey);
 563                         ikey = NULL;
 564                 }
 565                 while (*attr) {
 566                         if (!strcasecmp(attr[0], "key")) {
 567                                 ikey = strdup(attr[1]);
 568                         }
 569                         attr += 2;
 570                 }
 571         }
 572
 573 }
 574
 575
 576 int migr_userrecord(void *data, const char *el)
 577 {
 578         if (!strcasecmp(el, "u_version"))                       usbuf.version = atoi(ChrPtr(migr_chardata));
 579         else if (!strcasecmp(el, "u_uid"))                      usbuf.uid = atol(ChrPtr(migr_chardata));
 580         else if (!strcasecmp(el, "u_password"))                 safestrncpy(usbuf.password, ChrPtr(migr_chardata), sizeof usbuf.password);
 581         else if (!strcasecmp(el, "u_flags"))                    usbuf.flags = atoi(ChrPtr(migr_chardata));
 582         else if (!strcasecmp(el, "u_timescalled"))              usbuf.timescalled = atol(ChrPtr(migr_chardata));
 583         else if (!strcasecmp(el, "u_posted"))                   usbuf.posted = atol(ChrPtr(migr_chardata));
 584         else if (!strcasecmp(el, "u_axlevel"))                  usbuf.axlevel = atoi(ChrPtr(migr_chardata));
 585         else if (!strcasecmp(el, "u_usernum"))                  usbuf.usernum = atol(ChrPtr(migr_chardata));
 586         else if (!strcasecmp(el, "u_lastcall"))                 usbuf.lastcall = atol(ChrPtr(migr_chardata));
 587         else if (!strcasecmp(el, "u_USuserpurge"))              usbuf.USuserpurge = atoi(ChrPtr(migr_chardata));
 588         else if (!strcasecmp(el, "u_fullname"))                 safestrncpy(usbuf.fullname, ChrPtr(migr_chardata), sizeof usbuf.fullname);
 589         else if (!strcasecmp(el, "u_msgnum_bio"))               usbuf.msgnum_bio = atol(ChrPtr(migr_chardata));
 590         else if (!strcasecmp(el, "u_msgnum_pic"))               usbuf.msgnum_pic = atol(ChrPtr(migr_chardata));
 591         else if (!strcasecmp(el, "u_emailaddrs"))               safestrncpy(usbuf.emailaddrs, ChrPtr(migr_chardata), sizeof usbuf.emailaddrs);
 592         else if (!strcasecmp(el, "u_msgnum_inboxrules"))        usbuf.msgnum_inboxrules = atol(ChrPtr(migr_chardata));
 593         else return 0;
 594         return 1;
 595 }
 596
 597
 598 int migr_roomrecord(void *data, const char *el)
 599 {
 600         if (!strcasecmp(el, "QRname"))                          safestrncpy(qrbuf.QRname, ChrPtr(migr_chardata), sizeof qrbuf.QRname);
 601         else if (!strcasecmp(el, "QRpasswd"))                   safestrncpy(qrbuf.QRpasswd, ChrPtr(migr_chardata), sizeof qrbuf.QRpasswd);
 602         else if (!strcasecmp(el, "QRroomaide"))                 qrbuf.QRroomaide = atol(ChrPtr(migr_chardata));
 603         else if (!strcasecmp(el, "QRhighest"))                  qrbuf.QRhighest = atol(ChrPtr(migr_chardata));
 604         else if (!strcasecmp(el, "QRgen"))                      qrbuf.QRgen = atol(ChrPtr(migr_chardata));
 605         else if (!strcasecmp(el, "QRflags"))                    qrbuf.QRflags = atoi(ChrPtr(migr_chardata));
 606         else if (!strcasecmp(el, "QRdirname"))                  safestrncpy(qrbuf.QRdirname, ChrPtr(migr_chardata), sizeof qrbuf.QRdirname);
 607         else if (!strcasecmp(el, "QRfloor"))                    qrbuf.QRfloor = atoi(ChrPtr(migr_chardata));
 608         else if (!strcasecmp(el, "QRmtime"))                    qrbuf.QRmtime = atol(ChrPtr(migr_chardata));
 609         else if (!strcasecmp(el, "QRexpire_mode"))              qrbuf.QRep.expire_mode = atoi(ChrPtr(migr_chardata));
 610         else if (!strcasecmp(el, "QRexpire_value"))             qrbuf.QRep.expire_value = atoi(ChrPtr(migr_chardata));
 611         else if (!strcasecmp(el, "QRnumber"))                   qrbuf.QRnumber = atol(ChrPtr(migr_chardata));
 612         else if (!strcasecmp(el, "QRorder"))                    qrbuf.QRorder = atoi(ChrPtr(migr_chardata));
 613         else if (!strcasecmp(el, "QRflags2"))                   qrbuf.QRflags2 = atoi(ChrPtr(migr_chardata));
 614         else if (!strcasecmp(el, "QRdefaultview"))              qrbuf.QRdefaultview = atoi(ChrPtr(migr_chardata));
 615         else if (!strcasecmp(el, "msgnum_info"))                qrbuf.msgnum_info = atol(ChrPtr(migr_chardata));
 616         else if (!strcasecmp(el, "msgnum_pic"))                 qrbuf.msgnum_pic = atol(ChrPtr(migr_chardata));
 617         else return 0;
 618         return 1;
 619 }
 620
 621
 622 int migr_floorrecord(void *data, const char *el)
 623 {
 624         if (!strcasecmp(el, "f_num"))                           floornum = atoi(ChrPtr(migr_chardata));
 625         else if (!strcasecmp(el, "f_flags"))                    flbuf.f_flags = atoi(ChrPtr(migr_chardata));
 626         else if (!strcasecmp(el, "f_name"))                     safestrncpy(flbuf.f_name, ChrPtr(migr_chardata), sizeof flbuf.f_name);
 627         else if (!strcasecmp(el, "f_ref_count"))                flbuf.f_ref_count = atoi(ChrPtr(migr_chardata));
 628         else if (!strcasecmp(el, "f_ep_expire_mode"))           flbuf.f_ep.expire_mode = atoi(ChrPtr(migr_chardata));
 629         else if (!strcasecmp(el, "f_ep_expire_value"))          flbuf.f_ep.expire_value = atoi(ChrPtr(migr_chardata));
 630         else return 0;
 631         return 1;
 632 }
 633
 634
 635 int migr_visitrecord(void *data, const char *el)
 636 {
 637         if (!strcasecmp(el, "v_roomnum"))                       vbuf.v_roomnum = atol(ChrPtr(migr_chardata));
 638         else if (!strcasecmp(el, "v_roomgen"))                  vbuf.v_roomgen = atol(ChrPtr(migr_chardata));
 639         else if (!strcasecmp(el, "v_usernum"))                  vbuf.v_usernum = atol(ChrPtr(migr_chardata));
 640
 641         else if (!strcasecmp(el, "v_seen")) {
 642                 int is_textual_seen = 0;
 643                 int i;
 644                 int max = StrLength(migr_chardata);
 645
 646                 vbuf.v_lastseen = atol(ChrPtr(migr_chardata));
 647                 is_textual_seen = 0;
 648                 for (i=0; i < max; ++i)
 649                         if (!isdigit(ChrPtr(migr_chardata)[i]))
 650                                 is_textual_seen = 1;
 651                 if (is_textual_seen)
 652                         safestrncpy(vbuf.v_seen, ChrPtr(migr_chardata), sizeof vbuf.v_seen);
 653         }
 654
 655         else if (!strcasecmp(el, "v_answered"))                 safestrncpy(vbuf.v_answered, ChrPtr(migr_chardata), sizeof vbuf.v_answered);
 656         else if (!strcasecmp(el, "v_flags"))                    vbuf.v_flags = atoi(ChrPtr(migr_chardata));
 657         else if (!strcasecmp(el, "v_view"))                     vbuf.v_view = atoi(ChrPtr(migr_chardata));
 658         else return 0;
 659         return 1;
 660 }
 661
 662
 663 void migr_xml_end(void *data, const char *el)
 664 {
 665         const char *ptr;
 666         int msgcount = 0;
 667         long msgnum = 0L;
 668         long *msglist = NULL;
 669         int msglist_alloc = 0;
 670         /*** GENERAL STUFF ***/
 671
 672         if (!strcasecmp(el, "citadel_migrate_data")) {
 673                 --citadel_migrate_data;
 674                 return;
 675         }
 676
 677         if (citadel_migrate_data != 1) {
 678                 syslog(LOG_ALERT, "Out-of-sequence tag <%s> detected.  Warning: ODD-DATA!", el);
 679                 return;
 680         }
 681
 682         // syslog(LOG_DEBUG, "END TAG: <%s> DATA: <%s>\n", el, (migr_chardata_len ? migr_chardata : ""));
 683
 684         /*** CONFIG ***/
 685
 686         if (!strcasecmp(el, "config"))
 687         {
 688                 syslog(LOG_DEBUG, "Imported config key=%s", ikey);
 689
 690                 if (ikey != NULL) {
 691                         CtdlSetConfigStr(ikey, (char *)ChrPtr(migr_chardata));
 692                         free(ikey);
 693                         ikey = NULL;
 694                 }
 695                 else {
 696                         syslog(LOG_INFO, "Closed a <config> tag but no key name was supplied.");
 697                 }
 698         }
 699
 700         /*** USER ***/
 701         else if ((!strncasecmp(el, HKEY("u_"))) &&
 702                  migr_userrecord(data, el))
 703                 ; /* Nothing to do anymore */
 704         else if (!strcasecmp(el, "user")) {
 705                 CtdlPutUser(&usbuf);
 706                 syslog(LOG_INFO, "Imported user: %s", usbuf.fullname);
 707         }
 708
 709         /*** OPENID ***/
 710
 711         else if (!strcasecmp(el, "oid_url"))                    safestrncpy(openid_url, ChrPtr(migr_chardata), sizeof openid_url);
 712         else if (!strcasecmp(el, "oid_usernum"))                openid_usernum = atol(ChrPtr(migr_chardata));
 713
 714         else if (!strcasecmp(el, "openid")) {                   /* see serv_openid_rp.c for a description of the record format */
 715                 char *oid_data;
 716                 int oid_data_len;
 717                 oid_data_len = sizeof(long) + strlen(openid_url) + 1;
 718                 oid_data = malloc(oid_data_len);
 719                 memcpy(oid_data, &openid_usernum, sizeof(long));
 720                 memcpy(&oid_data[sizeof(long)], openid_url, strlen(openid_url) + 1);
 721                 cdb_store(CDB_EXTAUTH, openid_url, strlen(openid_url), oid_data, oid_data_len);
 722                 free(oid_data);
 723                 syslog(LOG_INFO, "Imported OpenID: %s (%ld)", openid_url, openid_usernum);
 724         }
 725
 726         /*** ROOM ***/
 727         else if ((!strncasecmp(el, HKEY("QR"))) &&
 728                  migr_roomrecord(data, el))
 729                 ; /* Nothing to do anymore */
 730         else if (!strcasecmp(el, "room")) {
 731                 CtdlPutRoom(&qrbuf);
 732                 syslog(LOG_INFO, "Imported room: %s", qrbuf.QRname);
 733         }
 734
 735         /*** ROOM MESSAGE POINTERS ***/
 736
 737         else if (!strcasecmp(el, "FRname"))                     safestrncpy(FRname, ChrPtr(migr_chardata), sizeof FRname);
 738
 739         else if (!strcasecmp(el, "FRmsglist")) {
 740                 if (!IsEmptyStr(FRname)) {
 741                         msgcount = 0;
 742                         msglist_alloc = 1000;
 743                         msglist = malloc(sizeof(long) * msglist_alloc);
 744
 745                         syslog(LOG_DEBUG, "Message list for: %s", FRname);
 746
 747                         ptr = ChrPtr(migr_chardata);
 748                         while (*ptr != 0) {
 749                                 while ((*ptr != 0) && (!isdigit(*ptr))) {
 750                                         ++ptr;
 751                                 }
 752                                 if ((*ptr != 0) && (isdigit(*ptr))) {
 753                                         msgnum = atol(ptr);
 754                                         if (msgnum > 0L) {
 755                                                 if (msgcount >= msglist_alloc) {
 756                                                         msglist_alloc *= 2;
 757                                                         msglist = realloc(msglist, sizeof(long) * msglist_alloc);
 758                                                 }
 759                                                 msglist[msgcount++] = msgnum;
 760                                                 }
 761                                         }
 762                                         while ((*ptr != 0) && (isdigit(*ptr))) {
 763                                                 ++ptr;
 764                                         }
 765                                 }
 766                         }
 767                         if (msgcount > 0) {
 768                                 CtdlSaveMsgPointersInRoom(FRname, msglist, msgcount, 0, NULL, 1);
 769                         }
 770                         free(msglist);
 771                         msglist = NULL;
 772                         msglist_alloc = 0;
 773                         syslog(LOG_DEBUG, "Imported %d messages.", msgcount);
 774                         if (server_shutting_down) {
 775                                 return;
 776                 }
 777         }
 778
 779         /*** FLOORS ***/
 780         else if ((!strncasecmp(el, HKEY("f_"))) &&
 781                  migr_floorrecord(data, el))
 782                 ; /* Nothing to do anymore */
 783
 784         else if (!strcasecmp(el, "floor")) {
 785                 CtdlPutFloor(&flbuf, floornum);
 786                 syslog(LOG_INFO, "Imported floor #%d (%s)", floornum, flbuf.f_name);
 787         }
 788
 789         /*** VISITS ***/
 790         else if ((!strncasecmp(el, HKEY("v_"))) && migr_visitrecord(data, el)) {
 791                 ; /* Nothing to do anymore */
 792         }
 793         else if (!strcasecmp(el, "visit")) {
 794                 put_visit(&vbuf);
 795                 syslog(LOG_INFO, "Imported visit: %ld/%ld/%ld", vbuf.v_roomnum, vbuf.v_roomgen, vbuf.v_usernum);
 796         }
 797
 798         /*** MESSAGES ***/
 799
 800         else if (!strcasecmp(el, "msg_msgnum"))                 smi.meta_msgnum = import_msgnum = atol(ChrPtr(migr_chardata));
 801         else if (!strcasecmp(el, "msg_meta_refcount"))          smi.meta_refcount = atoi(ChrPtr(migr_chardata));
 802         else if (!strcasecmp(el, "msg_meta_rfc822_length"))     smi.meta_rfc822_length = atoi(ChrPtr(migr_chardata));
 803         else if (!strcasecmp(el, "msg_meta_content_type"))      safestrncpy(smi.meta_content_type, ChrPtr(migr_chardata), sizeof smi.meta_content_type);
 804
 805         else if (!strcasecmp(el, "msg_text"))
 806         {
 807                 long rc;
 808                 struct CtdlMessage *msg;
 809
 810                 FlushStrBuf(migr_MsgData);
 811                 StrBufDecodeBase64To(migr_chardata, migr_MsgData);
 812
 813                 msg = CtdlDeserializeMessage(import_msgnum, -1,
 814                                              ChrPtr(migr_MsgData),
 815                                              StrLength(migr_MsgData));
 816                 if (msg != NULL) {
 817                         rc = CtdlSaveThisMessage(msg, import_msgnum, 0);
 818                         if (rc == 0) {
 819                                 PutMetaData(&smi);
 820                         }
 821                         CM_Free(msg);
 822                 }
 823                 else {
 824                         rc = -1;
 825                 }
 826
 827                 syslog(LOG_INFO,
 828                        "%s message #%ld, size=%d, refcount=%d, bodylength=%ld, content-type: %s",
 829                        (rc!= 0)?"failed to import ":"Imported ",
 830                        import_msgnum,
 831                        StrLength(migr_MsgData),
 832                        smi.meta_refcount,
 833                        smi.meta_rfc822_length,
 834                        smi.meta_content_type
 835                 );
 836                 memset(&smi, 0, sizeof(smi));
 837         }
 838
 839         /*** MORE GENERAL STUFF ***/
 840
 841         FlushStrBuf(migr_chardata);
 842 }
 843
 844
 845 /*
 846  * Import begins here
 847  */
 848 void migr_do_import(void) {
 849         StrBuf *Buf;
 850         XML_Parser xp;
 851         int Finished = 0;
 852
 853         unbuffer_output();
 854         migr_chardata = NewStrBufPlain(NULL, SIZ * 20);
 855         migr_MsgData = NewStrBufPlain(NULL, SIZ * 20);
 856         Buf = NewStrBufPlain(NULL, SIZ);
 857         xp = XML_ParserCreate(NULL);
 858         if (!xp) {
 859                 cprintf("%d Failed to create XML parser instance\n", ERROR+INTERNAL_ERROR);
 860                 return;
 861         }
 862         XML_SetElementHandler(xp, migr_xml_start, migr_xml_end);
 863         XML_SetCharacterDataHandler(xp, migr_xml_chardata);
 864
 865         CC->dont_term = 1;
 866
 867         cprintf("%d sock it to me\n", SEND_LISTING);
 868         unbuffer_output();
 869
 870         client_set_inbound_buf(SIZ * 10);
 871
 872         while (!Finished && client_read_random_blob(Buf, -1) >= 0) {
 873                 if ((StrLength(Buf) > 4) && !strcmp(ChrPtr(Buf) + StrLength(Buf) - 4, "000\n")) {
 874                         Finished = 1;
 875                         StrBufCutAt(Buf, StrLength(Buf) - 4, NULL);
 876                 }
 877                 if (server_shutting_down)
 878                         break;  // Should we break or return?
 879
 880                 if (StrLength(Buf) == 0)
 881                         continue;
 882
 883                 XML_Parse(xp, ChrPtr(Buf), StrLength(Buf), 0);
 884                 FlushStrBuf(Buf);
 885         }
 886
 887         XML_Parse(xp, "", 0, 1);
 888         XML_ParserFree(xp);
 889         FreeStrBuf(&Buf);
 890         FreeStrBuf(&migr_chardata);
 891         FreeStrBuf(&migr_MsgData);
 892         rebuild_euid_index();
 893         rebuild_usersbynumber();
 894         CtdlSetConfigInt("MM_fulltext_wordbreaker", -1);        // Set an invalid wordbreaker to force re-indexing
 895         CC->dont_term = 0;
 896 }
 897
 898
 899 /******************************************************************************
 900  *                         Dispatcher, Common code                            *
 901  ******************************************************************************/
 902 /*
 903  * Dump out the pathnames of directories which can be copied "as is"
 904  */
 905 void migr_do_listdirs(void) {
 906         cprintf("%d Don't forget these:\n", LISTING_FOLLOWS);
 907         cprintf("files|%s\n",           ctdl_file_dir);
 908         cprintf("messages|%s\n",        ctdl_message_dir);
 909         cprintf("keys|%s\n",            ctdl_key_dir);
 910         cprintf("000\n");
 911 }
 912
 913
 914 /******************************************************************************
 915  *                    Repair database integrity                               *
 916  ******************************************************************************/
 917
 918 StrBuf *PlainMessageBuf = NULL;
 919 HashList *UsedMessageIDS = NULL;
 920
 921 int migr_restore_message_metadata(long msgnum, int refcount)
 922 {
 923         CitContext *CCC = MyContext();
 924         struct MetaData smi;
 925         struct CtdlMessage *msg;
 926         char *mptr = NULL;
 927
 928         /* We can use a static buffer here because there will never be more than
 929          * one of this operation happening at any given time, and it's really best
 930          * to just keep it allocated once instead of torturing malloc/free.
 931          * Call this function with msgnum "-1" to free the buffer when finished.
 932          */
 933         static int encoded_alloc = 0;
 934         static char *encoded_msg = NULL;
 935
 936         if (msgnum < 0) {
 937                 if ((encoded_alloc == 0) && (encoded_msg != NULL)) {
 938                         free(encoded_msg);
 939                         encoded_alloc = 0;
 940                         encoded_msg = NULL;
 941                         // todo FreeStrBuf(&PlainMessageBuf); PlainMessageBuf = NULL;
 942                 }
 943                 return 0;
 944         }
 945
 946         if (PlainMessageBuf == NULL) {
 947                 PlainMessageBuf = NewStrBufPlain(NULL, 10*SIZ);
 948         }
 949
 950         /* Ok, here we go ... */
 951
 952         msg = CtdlFetchMessage(msgnum, 1);
 953         if (msg == NULL) {
 954                 return 1;
 955         }
 956
 957         GetMetaData(&smi, msgnum);
 958         smi.meta_msgnum = msgnum;
 959         smi.meta_refcount = refcount;
 960
 961         /* restore the content type from the message body: */
 962         mptr = bmstrcasestr(msg->cm_fields[eMesageText], "Content-type:");
 963         if (mptr != NULL) {
 964                 char *aptr;
 965                 safestrncpy(smi.meta_content_type, &mptr[13], sizeof smi.meta_content_type);
 966                 striplt(smi.meta_content_type);
 967                 aptr = smi.meta_content_type;
 968                 while (!IsEmptyStr(aptr)) {
 969                         if ((*aptr == ';')
 970                             || (*aptr == ' ')
 971                             || (*aptr == 13)
 972                             || (*aptr == 10)) {
 973                                 memset(aptr, 0, sizeof(smi.meta_content_type) - (aptr - smi.meta_content_type));
 974                         }
 975                         else aptr++;
 976                 }
 977         }
 978
 979         CCC->redirect_buffer = PlainMessageBuf;
 980         CtdlOutputPreLoadedMsg(msg, MT_RFC822, HEADERS_ALL, 0, 1, QP_EADDR);
 981         smi.meta_rfc822_length = StrLength(CCC->redirect_buffer);
 982         CCC->redirect_buffer = NULL;
 983
 984         syslog(LOG_INFO,
 985                "Setting message #%ld meta data to: refcount=%d, bodylength=%ld, content-type: %s",
 986                smi.meta_msgnum,
 987                smi.meta_refcount,
 988                smi.meta_rfc822_length,
 989                smi.meta_content_type
 990         );
 991
 992         PutMetaData(&smi);
 993
 994         CM_Free(msg);
 995
 996         return 0;
 997 }
 998
 999
1000 void migr_check_room_msg(long msgnum, void *userdata) {
1001         fprintf(migr_global_message_list, "%ld %s\n", msgnum, CC->room.QRname);
1002 }
1003
1004
1005 void migr_check_rooms_backend(struct ctdlroom *buf, void *data) {
1006
1007         /* message list goes inside this tag */
1008
1009         CtdlGetRoom(&CC->room, buf->QRname);
1010         CtdlForEachMessage(MSGS_ALL, 0L, NULL, NULL, NULL, migr_check_room_msg, NULL);
1011 }
1012
1013
1014 void RemoveMessagesFromRooms(StrBuf *RoomNameVec, long msgnum) {
1015         struct MetaData smi;
1016         const char *Pos = NULL;
1017         StrBuf *oneRoom = NewStrBuf();
1018
1019         syslog(LOG_INFO, "removing message pointer %ld from these rooms: %s", msgnum, ChrPtr(RoomNameVec));
1020
1021         while (Pos != StrBufNOTNULL){
1022                 StrBufExtract_NextToken(oneRoom, RoomNameVec, &Pos, '|');
1023                 CtdlDeleteMessages(ChrPtr(oneRoom), &msgnum, 1, "");
1024         };
1025         GetMetaData(&smi, msgnum);
1026         AdjRefCount(msgnum, -smi.meta_refcount);
1027 }
1028
1029
1030 void migr_do_restore_meta(void) {
1031         char buf[SIZ];
1032         int failGetMessage;
1033         long msgnum = 0;
1034         int lastnum = 0;
1035         int refcount = 0;
1036         CitContext *Ctx;
1037         char *prn;
1038         StrBuf *RoomNames;
1039         char cmd[SIZ];
1040
1041         migr_global_message_list = fopen(migr_tempfilename1, "w");
1042         if (migr_global_message_list != NULL) {
1043                 CtdlForEachRoom(migr_check_rooms_backend, NULL);
1044                 fclose(migr_global_message_list);
1045         }
1046
1047         /*
1048          * Process the 'global' message list.  (Sort it and remove dups.
1049          * Dups are ok because a message may be in more than one room, but
1050          * this will be handled by exporting the reference count, not by
1051          * exporting the message multiple times.)
1052          */
1053         snprintf(cmd, sizeof cmd, "sort -n <%s >%s", migr_tempfilename1, migr_tempfilename2);
1054         if (system(cmd) != 0) syslog(LOG_ALERT, "Error %d", errno);
1055
1056         RoomNames = NewStrBuf();
1057         Ctx = CC;
1058         migr_global_message_list = fopen(migr_tempfilename2, "r");
1059         if (migr_global_message_list != NULL) {
1060                 syslog(LOG_INFO, "Opened %s", migr_tempfilename1);
1061                 while ((Ctx->kill_me == 0) &&
1062                        (fgets(buf, sizeof(buf), migr_global_message_list) != NULL)) {
1063                         msgnum = atol(buf);
1064                         if (msgnum == 0L)
1065                                 continue;
1066                         if (lastnum == 0) {
1067                                 lastnum = msgnum;
1068                         }
1069                         prn = strchr(buf, ' ');
1070                         if (lastnum != msgnum) {
1071                                 failGetMessage = migr_restore_message_metadata(lastnum, refcount);
1072                                 if (failGetMessage) {
1073                                         RemoveMessagesFromRooms(RoomNames, lastnum);
1074                                 }
1075                                 refcount = 1;
1076                                 lastnum = msgnum;
1077                                 if (prn != NULL) {
1078                                         StrBufPlain(RoomNames, prn + 1, -1);
1079                                 }
1080                                 StrBufTrim(RoomNames);
1081                         }
1082                         else {
1083                                 if (prn != NULL) {
1084                                         if (StrLength(RoomNames) > 0) {
1085                                                 StrBufAppendBufPlain(RoomNames, HKEY("|"), 0);
1086                                         }
1087                                         StrBufAppendBufPlain(RoomNames, prn, -1, 1);
1088                                         StrBufTrim(RoomNames);
1089                                 }
1090                                 refcount ++;
1091                         }
1092                         lastnum = msgnum;
1093                 }
1094                 failGetMessage = migr_restore_message_metadata(msgnum, refcount);
1095                 if (failGetMessage) {
1096                         RemoveMessagesFromRooms(RoomNames, lastnum);
1097                 }
1098                 fclose(migr_global_message_list);
1099         }
1100
1101         migr_restore_message_metadata(-1L, -1); /* This frees the encoding buffer */
1102         cprintf("%d system analysis completed", CIT_OK);
1103         Ctx->kill_me = 1;
1104 }
1105
1106
1107 /******************************************************************************
1108  *                         Dispatcher, Common code                            *
1109  ******************************************************************************/
1110 void cmd_migr(char *cmdbuf) {
1111         char cmd[32];
1112
1113         if (CtdlAccessCheck(ac_internal)) return;
1114
1115         if (CtdlTrySingleUser()) {
1116                 CtdlDisableHouseKeeping();
1117                 CtdlMakeTempFileName(migr_tempfilename1, sizeof migr_tempfilename1);
1118                 CtdlMakeTempFileName(migr_tempfilename2, sizeof migr_tempfilename2);
1119
1120                 extract_token(cmd, cmdbuf, 0, '|', sizeof cmd);
1121                 if (!strcasecmp(cmd, "export")) {
1122                         migr_do_export();
1123                 }
1124                 else if (!strcasecmp(cmd, "import")) {
1125                         migr_do_import();
1126                 }
1127                 else if (!strcasecmp(cmd, "listdirs")) {
1128                         migr_do_listdirs();
1129                 }
1130                 else if (!strcasecmp(cmd, "restoremeta")) {
1131                         migr_do_restore_meta();
1132                 }
1133                 else {
1134                         cprintf("%d illegal command\n", ERROR + ILLEGAL_VALUE);
1135                 }
1136
1137                 unlink(migr_tempfilename1);
1138                 unlink(migr_tempfilename2);
1139
1140                 CtdlEnableHouseKeeping();
1141                 CtdlEndSingleUser();
1142         }
1143         else {
1144                 cprintf("%d The migrator is already running.\n", ERROR + RESOURCE_BUSY);
1145         }
1146 }
1147
1148
1149 /******************************************************************************
1150  *                              Module Hook                                  *
1151  ******************************************************************************/
1152
1153 CTDL_MODULE_INIT(migrate)
1154 {
1155         if (!threading)
1156         {
1157                 CtdlRegisterProtoHook(cmd_migr, "MIGR", "Across-the-wire migration");
1158         }
1159
1160         /* return our module name for the log */
1161         return "migrate";
1162 }