citadel/modules/migrate/serv_migrate.c

   1 /*
   2  * This module dumps and/or loads the Citadel database in XML format.
   3  *
   4  * Copyright (c) 1987-2019 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         client_write(HKEY("</user>\n"));
 139 }
 140
 141
 142 void migr_export_users(void) {
 143         ForEachUser(migr_export_users_backend, NULL);
 144 }
 145
 146
 147 void migr_export_room_msg(long msgnum, void *userdata) {
 148         cprintf("%ld\n", msgnum);
 149         fprintf(migr_global_message_list, "%ld\n", msgnum);
 150 }
 151
 152
 153 void migr_export_rooms_backend(struct ctdlroom *buf, void *data) {
 154         client_write(HKEY("<room>\n"));
 155         client_write(HKEY("<QRname>")); xml_strout(buf->QRname);        client_write(HKEY("</QRname>\n"));
 156         client_write(HKEY("<QRpasswd>"));       xml_strout(buf->QRpasswd);      client_write(HKEY("</QRpasswd>\n"));
 157         cprintf("<QRroomaide>%ld</QRroomaide>\n", buf->QRroomaide);
 158         cprintf("<QRhighest>%ld</QRhighest>\n", buf->QRhighest);
 159         cprintf("<QRgen>%ld</QRgen>\n", (long)buf->QRgen);
 160         cprintf("<QRflags>%u</QRflags>\n", buf->QRflags);
 161         if (buf->QRflags & QR_DIRECTORY) {
 162                 client_write(HKEY("<QRdirname>"));
 163                 xml_strout(buf->QRdirname);
 164                 client_write(HKEY("</QRdirname>\n"));
 165         }
 166         cprintf("<QRfloor>%d</QRfloor>\n", buf->QRfloor);
 167         cprintf("<QRmtime>%ld</QRmtime>\n", (long)buf->QRmtime);
 168         cprintf("<QRexpire_mode>%d</QRexpire_mode>\n", buf->QRep.expire_mode);
 169         cprintf("<QRexpire_value>%d</QRexpire_value>\n", buf->QRep.expire_value);
 170         cprintf("<QRnumber>%ld</QRnumber>\n", buf->QRnumber);
 171         cprintf("<QRorder>%d</QRorder>\n", buf->QRorder);
 172         cprintf("<QRflags2>%u</QRflags2>\n", buf->QRflags2);
 173         cprintf("<QRdefaultview>%d</QRdefaultview>\n", buf->QRdefaultview);
 174         cprintf("<msgnum_info>%ld</msgnum_info>\n", buf->msgnum_info);
 175         cprintf("<msgnum_pic>%ld</msgnum_pic>\n", buf->msgnum_pic);
 176         client_write(HKEY("</room>\n"));
 177
 178         /* message list goes inside this tag */
 179
 180         CtdlGetRoom(&CC->room, buf->QRname);
 181         client_write(HKEY("<room_messages>"));
 182         client_write(HKEY("<FRname>")); xml_strout(CC->room.QRname);    client_write(HKEY("</FRname>\n"));
 183         client_write(HKEY("<FRmsglist>"));
 184         CtdlForEachMessage(MSGS_ALL, 0L, NULL, NULL, NULL, migr_export_room_msg, NULL);
 185         client_write(HKEY("</FRmsglist>\n"));
 186         client_write(HKEY("</room_messages>\n"));
 187
 188
 189 }
 190
 191
 192 void migr_export_rooms(void) {
 193         char cmd[SIZ];
 194         migr_global_message_list = fopen(migr_tempfilename1, "w");
 195         if (migr_global_message_list != NULL) {
 196                 CtdlForEachRoom(migr_export_rooms_backend, NULL);
 197                 fclose(migr_global_message_list);
 198         }
 199
 200         /*
 201          * Process the 'global' message list.  (Sort it and remove dups.
 202          * Dups are ok because a message may be in more than one room, but
 203          * this will be handled by exporting the reference count, not by
 204          * exporting the message multiple times.)
 205          */
 206         snprintf(cmd, sizeof cmd, "sort -n <%s >%s", migr_tempfilename1, migr_tempfilename2);
 207         if (system(cmd) != 0) syslog(LOG_ALERT, "Error %d", errno);
 208         snprintf(cmd, sizeof cmd, "uniq <%s >%s", migr_tempfilename2, migr_tempfilename1);
 209         if (system(cmd) != 0) syslog(LOG_ALERT, "Error %d", errno);
 210
 211
 212         snprintf(cmd, sizeof cmd, "wc -l %s", migr_tempfilename1);
 213         FILE *fp = popen(cmd, "r");
 214         if (fp) {
 215                 fgets(cmd, sizeof cmd, fp);
 216                 pclose(fp);
 217                 total_msgs = atoi(cmd);
 218         }
 219         else {
 220                 total_msgs = 1; // any nonzero just to keep it from barfing
 221         }
 222         syslog(LOG_DEBUG, "Total messages to be exported: %d", total_msgs);
 223 }
 224
 225
 226 void migr_export_floors(void) {
 227         struct floor qfbuf, *buf;
 228         int i;
 229
 230         for (i=0; i < MAXFLOORS; ++i) {
 231                 client_write(HKEY("<floor>\n"));
 232                 cprintf("<f_num>%d</f_num>\n", i);
 233                 CtdlGetFloor(&qfbuf, i);
 234                 buf = &qfbuf;
 235                 cprintf("<f_flags>%u</f_flags>\n", buf->f_flags);
 236                 client_write(HKEY("<f_name>")); xml_strout(buf->f_name); client_write(HKEY("</f_name>\n"));
 237                 cprintf("<f_ref_count>%d</f_ref_count>\n", buf->f_ref_count);
 238                 cprintf("<f_ep_expire_mode>%d</f_ep_expire_mode>\n", buf->f_ep.expire_mode);
 239                 cprintf("<f_ep_expire_value>%d</f_ep_expire_value>\n", buf->f_ep.expire_value);
 240                 client_write(HKEY("</floor>\n"));
 241         }
 242 }
 243
 244
 245 /*
 246  * Return nonzero if the supplied string contains only characters which are valid in a sequence set.
 247  */
 248 int is_sequence_set(char *s) {
 249         if (!s) return(0);
 250
 251         char *c = s;
 252         char ch;
 253         while (ch = *c++, ch) {
 254                 if (!strchr("0123456789*,:", ch)) {
 255                         return(0);
 256                 }
 257         }
 258         return(1);
 259 }
 260
 261
 262 /*
 263  *  Traverse the visits file...
 264  */
 265 void migr_export_visits(void) {
 266         visit vbuf;
 267         struct cdbdata *cdbv;
 268
 269         cdb_rewind(CDB_VISIT);
 270
 271         while (cdbv = cdb_next_item(CDB_VISIT), cdbv != NULL) {
 272                 memset(&vbuf, 0, sizeof(visit));
 273                 memcpy(&vbuf, cdbv->ptr,
 274                        ((cdbv->len > sizeof(visit)) ?
 275                         sizeof(visit) : cdbv->len));
 276                 cdb_free(cdbv);
 277
 278                 client_write(HKEY("<visit>\n"));
 279                 cprintf("<v_roomnum>%ld</v_roomnum>\n", vbuf.v_roomnum);
 280                 cprintf("<v_roomgen>%ld</v_roomgen>\n", vbuf.v_roomgen);
 281                 cprintf("<v_usernum>%ld</v_usernum>\n", vbuf.v_usernum);
 282
 283                 client_write(HKEY("<v_seen>"));
 284                 if ( (!IsEmptyStr(vbuf.v_seen)) && (is_sequence_set(vbuf.v_seen)) ) {
 285                         xml_strout(vbuf.v_seen);
 286                 }
 287                 else {
 288                         cprintf("%ld", vbuf.v_lastseen);
 289                 }
 290                 client_write(HKEY("</v_seen>"));
 291
 292                 if ( (!IsEmptyStr(vbuf.v_answered)) && (is_sequence_set(vbuf.v_answered)) ) {
 293                         client_write(HKEY("<v_answered>"));
 294                         xml_strout(vbuf.v_answered);
 295                         client_write(HKEY("</v_answered>\n"));
 296                 }
 297
 298                 cprintf("<v_flags>%u</v_flags>\n", vbuf.v_flags);
 299                 cprintf("<v_view>%d</v_view>\n", vbuf.v_view);
 300                 client_write(HKEY("</visit>\n"));
 301         }
 302 }
 303
 304
 305 void migr_export_message(long msgnum) {
 306         struct MetaData smi;
 307         struct CtdlMessage *msg;
 308         struct ser_ret smr;
 309
 310         /* We can use a static buffer here because there will never be more than
 311          * one of this operation happening at any given time, and it's really best
 312          * to just keep it allocated once instead of torturing malloc/free.
 313          * Call this function with msgnum "-1" to free the buffer when finished.
 314          */
 315         static int encoded_alloc = 0;
 316         static char *encoded_msg = NULL;
 317
 318         if (msgnum < 0) {
 319                 if ((encoded_alloc == 0) && (encoded_msg != NULL)) {
 320                         free(encoded_msg);
 321                         encoded_alloc = 0;
 322                         encoded_msg = NULL;
 323                 }
 324                 return;
 325         }
 326
 327         /* Ok, here we go ... */
 328
 329         msg = CtdlFetchMessage(msgnum, 1, 0);
 330         if (msg == NULL) return;        /* fail silently */
 331
 332         client_write(HKEY("<message>\n"));
 333         GetMetaData(&smi, msgnum);
 334         cprintf("<msg_msgnum>%ld</msg_msgnum>\n", msgnum);
 335         cprintf("<msg_meta_refcount>%d</msg_meta_refcount>\n", smi.meta_refcount);
 336         cprintf("<msg_meta_rfc822_length>%ld</msg_meta_rfc822_length>\n", smi.meta_rfc822_length);
 337         client_write(HKEY("<msg_meta_content_type>")); xml_strout(smi.meta_content_type); client_write(HKEY("</msg_meta_content_type>\n"));
 338
 339         client_write(HKEY("<msg_text>"));
 340         CtdlSerializeMessage(&smr, msg);
 341         CM_Free(msg);
 342
 343         /* Predict the buffer size we need.  Expand the buffer if necessary. */
 344         int encoded_len = smr.len * 15 / 10 ;
 345         if (encoded_len > encoded_alloc) {
 346                 encoded_alloc = encoded_len;
 347                 encoded_msg = realloc(encoded_msg, encoded_alloc);
 348         }
 349
 350         if (encoded_msg == NULL) {
 351                 /* Questionable hack that hopes it'll work next time and we only lose one message */
 352                 encoded_alloc = 0;
 353         }
 354         else {
 355                 /* Once we do the encoding we know the exact size */
 356                 encoded_len = CtdlEncodeBase64(encoded_msg, (char *)smr.ser, smr.len, 1);
 357                 client_write(encoded_msg, encoded_len);
 358         }
 359
 360         free(smr.ser);
 361
 362         client_write(HKEY("</msg_text>\n"));
 363         client_write(HKEY("</message>\n"));
 364 }
 365
 366
 367 void migr_export_openids(void) {
 368         struct cdbdata *cdboi;
 369         long usernum;
 370         char url[512];
 371
 372         cdb_rewind(CDB_EXTAUTH);
 373         while (cdboi = cdb_next_item(CDB_EXTAUTH), cdboi != NULL) {
 374                 if (cdboi->len > sizeof(long)) {
 375                         client_write(HKEY("<openid>\n"));
 376                         memcpy(&usernum, cdboi->ptr, sizeof(long));
 377                         snprintf(url, sizeof url, "%s", (cdboi->ptr)+sizeof(long) );
 378                         client_write(HKEY("<oid_url>"));
 379                         xml_strout(url);
 380                         client_write(HKEY("</oid_url>\n"));
 381                         cprintf("<oid_usernum>%ld</oid_usernum>\n", usernum);
 382                         client_write(HKEY("</openid>\n"));
 383                 }
 384                 cdb_free(cdboi);
 385         }
 386 }
 387
 388
 389 void migr_export_configs(void) {
 390         struct cdbdata *cdbcfg;
 391         int keylen = 0;
 392         char *key = NULL;
 393         char *value = NULL;
 394
 395         cdb_rewind(CDB_CONFIG);
 396         while (cdbcfg = cdb_next_item(CDB_CONFIG), cdbcfg != NULL) {
 397
 398                 keylen = strlen(cdbcfg->ptr);
 399                 key = cdbcfg->ptr;
 400                 value = cdbcfg->ptr + keylen + 1;
 401
 402                 client_write("<config key=\"", 13);
 403                 xml_strout(key);
 404                 client_write("\">", 2);
 405                 xml_strout(value);
 406                 client_write("</config>\n", 10);
 407                 cdb_free(cdbcfg);
 408         }
 409 }
 410
 411
 412 void migr_export_messages(void) {
 413         char buf[SIZ];
 414         long msgnum;
 415         int count = 0;
 416         int progress = 0;
 417         int prev_progress = 0;
 418         CitContext *Ctx;
 419
 420         Ctx = CC;
 421         migr_global_message_list = fopen(migr_tempfilename1, "r");
 422         if (migr_global_message_list != NULL) {
 423                 syslog(LOG_INFO, "Opened %s", migr_tempfilename1);
 424                 while ((Ctx->kill_me == 0) &&
 425                        (fgets(buf, sizeof(buf), migr_global_message_list) != NULL)) {
 426                         msgnum = atol(buf);
 427                         if (msgnum > 0L) {
 428                                 migr_export_message(msgnum);
 429                                 ++count;
 430                         }
 431                         progress = (count * 74 / total_msgs) + 25 ;
 432                         if ((progress > prev_progress) && (progress < 100)) {
 433                                 cprintf("<progress>%d</progress>\n", progress);
 434                         }
 435                         prev_progress = progress;
 436                 }
 437                 fclose(migr_global_message_list);
 438         }
 439         if (Ctx->kill_me == 0) {
 440                 syslog(LOG_INFO, "Exported %d messages.", count);
 441         }
 442         else {
 443                 syslog(LOG_ERR, "Export aborted due to client disconnect!");
 444         }
 445
 446         migr_export_message(-1L);       /* This frees the encoding buffer */
 447 }
 448
 449
 450 void migr_do_export(void) {
 451         CitContext *Ctx;
 452
 453         Ctx = CC;
 454         cprintf("%d Exporting all Citadel databases.\n", LISTING_FOLLOWS);
 455         Ctx->dont_term = 1;
 456
 457         client_write(HKEY("<?xml version=\"1.0\" encoding=\"UTF-8\" ?>\n"));
 458         client_write(HKEY("<citadel_migrate_data>\n"));
 459         cprintf("<version>%d</version>\n", REV_LEVEL);
 460         cprintf("<progress>%d</progress>\n", 0);
 461
 462         /* export the configuration database */
 463         migr_export_configs();
 464         cprintf("<progress>%d</progress>\n", 2);
 465
 466         if (Ctx->kill_me == 0)  migr_export_users();
 467         cprintf("<progress>%d</progress>\n", 7);
 468         if (Ctx->kill_me == 0)  migr_export_openids();
 469         cprintf("<progress>%d</progress>\n", 12);
 470         if (Ctx->kill_me == 0)  migr_export_rooms();
 471         cprintf("<progress>%d</progress>\n", 17);
 472         if (Ctx->kill_me == 0)  migr_export_floors();
 473         cprintf("<progress>%d</progress>\n", 18);
 474         if (Ctx->kill_me == 0)  migr_export_visits();
 475         cprintf("<progress>%d</progress>\n", 25);
 476         if (Ctx->kill_me == 0)  migr_export_messages();
 477         client_write(HKEY("</citadel_migrate_data>\n"));
 478         cprintf("<progress>%d</progress>\n", 100);
 479         client_write(HKEY("000\n"));
 480         Ctx->dont_term = 0;
 481 }
 482
 483
 484 /******************************************************************************
 485  *                              Import code                                   *
 486  *    Here's the code that implements the import side.  It's going to end up  *
 487  *        being one big loop with lots of global variables.  I don't care.    *
 488  * You wouldn't run multiple concurrent imports anyway.  If this offends your *
 489  * delicate sensibilities  then go rewrite it in Ruby on Rails or something.  *
 490  ******************************************************************************/
 491
 492
 493 int citadel_migrate_data = 0;           /* Are we inside a <citadel_migrate_data> tag pair? */
 494 StrBuf *migr_chardata = NULL;
 495 StrBuf *migr_MsgData = NULL;
 496 struct ctdluser usbuf;
 497 struct ctdlroom qrbuf;
 498 char openid_url[512];
 499 long openid_usernum = 0;
 500 char FRname[ROOMNAMELEN];
 501 struct floor flbuf;
 502 int floornum = 0;
 503 visit vbuf;
 504 struct MetaData smi;
 505 long import_msgnum = 0;
 506
 507 /*
 508  * This callback stores up the data which appears in between tags.
 509  */
 510 void migr_xml_chardata(void *data, const XML_Char *s, int len)
 511 {
 512         StrBufAppendBufPlain(migr_chardata, s, len, 0);
 513 }
 514
 515
 516 void migr_xml_start(void *data, const char *el, const char **attr) {
 517         int i;
 518
 519         /*** GENERAL STUFF ***/
 520
 521         /* Reset chardata_len to zero and init buffer */
 522         FlushStrBuf(migr_chardata);
 523         FlushStrBuf(migr_MsgData);
 524
 525         if (!strcasecmp(el, "citadel_migrate_data")) {
 526                 ++citadel_migrate_data;
 527
 528                 /* As soon as it looks like the input data is a genuine Citadel XML export,
 529                  * whack the existing database on disk to make room for the new one.
 530                  */
 531                 if (citadel_migrate_data == 1) {
 532                         for (i = 0; i < MAXCDB; ++i) {
 533                                 cdb_trunc(i);
 534                         }
 535                 }
 536                 return;
 537         }
 538
 539         if (citadel_migrate_data != 1) {
 540                 syslog(LOG_ALERT, "Out-of-sequence tag <%s> detected.  Warning: ODD-DATA!", el);
 541                 return;
 542         }
 543
 544         /* When we begin receiving XML for one of these record types, clear out the associated
 545          * buffer so we don't accidentally carry over any data from a previous record.
 546          */
 547         if (!strcasecmp(el, "user"))                    memset(&usbuf, 0, sizeof (struct ctdluser));
 548         else if (!strcasecmp(el, "openid"))             memset(openid_url, 0, sizeof openid_url);
 549         else if (!strcasecmp(el, "room"))               memset(&qrbuf, 0, sizeof (struct ctdlroom));
 550         else if (!strcasecmp(el, "room_messages"))      memset(FRname, 0, sizeof FRname);
 551         else if (!strcasecmp(el, "floor"))              memset(&flbuf, 0, sizeof (struct floor));
 552         else if (!strcasecmp(el, "visit"))              memset(&vbuf, 0, sizeof (visit));
 553
 554         else if (!strcasecmp(el, "message")) {
 555                 memset(&smi, 0, sizeof (struct MetaData));
 556                 import_msgnum = 0;
 557         }
 558         else if (!strcasecmp(el, "config")) {
 559                 if (ikey != NULL) {
 560                         free(ikey);
 561                         ikey = NULL;
 562                 }
 563                 while (*attr) {
 564                         if (!strcasecmp(attr[0], "key")) {
 565                                 ikey = strdup(attr[1]);
 566                         }
 567                         attr += 2;
 568                 }
 569         }
 570
 571 }
 572
 573
 574 int migr_userrecord(void *data, const char *el)
 575 {
 576         if (!strcasecmp(el, "u_version"))                       usbuf.version = atoi(ChrPtr(migr_chardata));
 577         else if (!strcasecmp(el, "u_uid"))                      usbuf.uid = atol(ChrPtr(migr_chardata));
 578         else if (!strcasecmp(el, "u_password"))                 safestrncpy(usbuf.password, ChrPtr(migr_chardata), sizeof usbuf.password);
 579         else if (!strcasecmp(el, "u_flags"))                    usbuf.flags = atoi(ChrPtr(migr_chardata));
 580         else if (!strcasecmp(el, "u_timescalled"))              usbuf.timescalled = atol(ChrPtr(migr_chardata));
 581         else if (!strcasecmp(el, "u_posted"))                   usbuf.posted = atol(ChrPtr(migr_chardata));
 582         else if (!strcasecmp(el, "u_axlevel"))                  usbuf.axlevel = atoi(ChrPtr(migr_chardata));
 583         else if (!strcasecmp(el, "u_usernum"))                  usbuf.usernum = atol(ChrPtr(migr_chardata));
 584         else if (!strcasecmp(el, "u_lastcall"))                 usbuf.lastcall = atol(ChrPtr(migr_chardata));
 585         else if (!strcasecmp(el, "u_USuserpurge"))              usbuf.USuserpurge = atoi(ChrPtr(migr_chardata));
 586         else if (!strcasecmp(el, "u_fullname"))                 safestrncpy(usbuf.fullname, ChrPtr(migr_chardata), sizeof usbuf.fullname);
 587         else if (!strcasecmp(el, "u_msgnum_bio"))               usbuf.msgnum_bio = atol(ChrPtr(migr_chardata));
 588         else if (!strcasecmp(el, "u_msgnum_pic"))               usbuf.msgnum_pic = atol(ChrPtr(migr_chardata));
 589         else return 0;
 590         return 1;
 591 }
 592
 593
 594 int migr_roomrecord(void *data, const char *el)
 595 {
 596         if (!strcasecmp(el, "QRname"))                          safestrncpy(qrbuf.QRname, ChrPtr(migr_chardata), sizeof qrbuf.QRname);
 597         else if (!strcasecmp(el, "QRpasswd"))                   safestrncpy(qrbuf.QRpasswd, ChrPtr(migr_chardata), sizeof qrbuf.QRpasswd);
 598         else if (!strcasecmp(el, "QRroomaide"))                 qrbuf.QRroomaide = atol(ChrPtr(migr_chardata));
 599         else if (!strcasecmp(el, "QRhighest"))                  qrbuf.QRhighest = atol(ChrPtr(migr_chardata));
 600         else if (!strcasecmp(el, "QRgen"))                      qrbuf.QRgen = atol(ChrPtr(migr_chardata));
 601         else if (!strcasecmp(el, "QRflags"))                    qrbuf.QRflags = atoi(ChrPtr(migr_chardata));
 602         else if (!strcasecmp(el, "QRdirname"))                  safestrncpy(qrbuf.QRdirname, ChrPtr(migr_chardata), sizeof qrbuf.QRdirname);
 603         else if (!strcasecmp(el, "QRfloor"))                    qrbuf.QRfloor = atoi(ChrPtr(migr_chardata));
 604         else if (!strcasecmp(el, "QRmtime"))                    qrbuf.QRmtime = atol(ChrPtr(migr_chardata));
 605         else if (!strcasecmp(el, "QRexpire_mode"))              qrbuf.QRep.expire_mode = atoi(ChrPtr(migr_chardata));
 606         else if (!strcasecmp(el, "QRexpire_value"))             qrbuf.QRep.expire_value = atoi(ChrPtr(migr_chardata));
 607         else if (!strcasecmp(el, "QRnumber"))                   qrbuf.QRnumber = atol(ChrPtr(migr_chardata));
 608         else if (!strcasecmp(el, "QRorder"))                    qrbuf.QRorder = atoi(ChrPtr(migr_chardata));
 609         else if (!strcasecmp(el, "QRflags2"))                   qrbuf.QRflags2 = atoi(ChrPtr(migr_chardata));
 610         else if (!strcasecmp(el, "QRdefaultview"))              qrbuf.QRdefaultview = atoi(ChrPtr(migr_chardata));
 611         else if (!strcasecmp(el, "msgnum_info"))                qrbuf.msgnum_info = atol(ChrPtr(migr_chardata));
 612         else if (!strcasecmp(el, "msgnum_pic"))                 qrbuf.msgnum_pic = atol(ChrPtr(migr_chardata));
 613         else return 0;
 614         return 1;
 615 }
 616
 617
 618 int migr_floorrecord(void *data, const char *el)
 619 {
 620         if (!strcasecmp(el, "f_num"))                           floornum = atoi(ChrPtr(migr_chardata));
 621         else if (!strcasecmp(el, "f_flags"))                    flbuf.f_flags = atoi(ChrPtr(migr_chardata));
 622         else if (!strcasecmp(el, "f_name"))                     safestrncpy(flbuf.f_name, ChrPtr(migr_chardata), sizeof flbuf.f_name);
 623         else if (!strcasecmp(el, "f_ref_count"))                flbuf.f_ref_count = atoi(ChrPtr(migr_chardata));
 624         else if (!strcasecmp(el, "f_ep_expire_mode"))           flbuf.f_ep.expire_mode = atoi(ChrPtr(migr_chardata));
 625         else if (!strcasecmp(el, "f_ep_expire_value"))          flbuf.f_ep.expire_value = atoi(ChrPtr(migr_chardata));
 626         else return 0;
 627         return 1;
 628 }
 629
 630
 631 int migr_visitrecord(void *data, const char *el)
 632 {
 633         if (!strcasecmp(el, "v_roomnum"))                       vbuf.v_roomnum = atol(ChrPtr(migr_chardata));
 634         else if (!strcasecmp(el, "v_roomgen"))                  vbuf.v_roomgen = atol(ChrPtr(migr_chardata));
 635         else if (!strcasecmp(el, "v_usernum"))                  vbuf.v_usernum = atol(ChrPtr(migr_chardata));
 636
 637         else if (!strcasecmp(el, "v_seen")) {
 638                 int is_textual_seen = 0;
 639                 int i;
 640                 int max = StrLength(migr_chardata);
 641
 642                 vbuf.v_lastseen = atol(ChrPtr(migr_chardata));
 643                 is_textual_seen = 0;
 644                 for (i=0; i < max; ++i)
 645                         if (!isdigit(ChrPtr(migr_chardata)[i]))
 646                                 is_textual_seen = 1;
 647                 if (is_textual_seen)
 648                         safestrncpy(vbuf.v_seen, ChrPtr(migr_chardata), sizeof vbuf.v_seen);
 649         }
 650
 651         else if (!strcasecmp(el, "v_answered"))                 safestrncpy(vbuf.v_answered, ChrPtr(migr_chardata), sizeof vbuf.v_answered);
 652         else if (!strcasecmp(el, "v_flags"))                    vbuf.v_flags = atoi(ChrPtr(migr_chardata));
 653         else if (!strcasecmp(el, "v_view"))                     vbuf.v_view = atoi(ChrPtr(migr_chardata));
 654         else return 0;
 655         return 1;
 656 }
 657
 658
 659 void migr_xml_end(void *data, const char *el)
 660 {
 661         const char *ptr;
 662         int msgcount = 0;
 663         long msgnum = 0L;
 664         long *msglist = NULL;
 665         int msglist_alloc = 0;
 666         /*** GENERAL STUFF ***/
 667
 668         if (!strcasecmp(el, "citadel_migrate_data")) {
 669                 --citadel_migrate_data;
 670                 return;
 671         }
 672
 673         if (citadel_migrate_data != 1) {
 674                 syslog(LOG_ALERT, "Out-of-sequence tag <%s> detected.  Warning: ODD-DATA!", el);
 675                 return;
 676         }
 677
 678         // syslog(LOG_DEBUG, "END TAG: <%s> DATA: <%s>\n", el, (migr_chardata_len ? migr_chardata : ""));
 679
 680         /*** CONFIG ***/
 681
 682         if (!strcasecmp(el, "config"))
 683         {
 684                 syslog(LOG_DEBUG, "Imported config key=%s", ikey);
 685
 686                 if (ikey != NULL) {
 687                         CtdlSetConfigStr(ikey, (char *)ChrPtr(migr_chardata));
 688                         free(ikey);
 689                         ikey = NULL;
 690                 }
 691                 else {
 692                         syslog(LOG_INFO, "Closed a <config> tag but no key name was supplied.");
 693                 }
 694         }
 695
 696         /*** USER ***/
 697         else if ((!strncasecmp(el, HKEY("u_"))) &&
 698                  migr_userrecord(data, el))
 699                 ; /* Nothing to do anymore */
 700         else if (!strcasecmp(el, "user")) {
 701                 CtdlPutUser(&usbuf);
 702                 syslog(LOG_INFO, "Imported user: %s", usbuf.fullname);
 703         }
 704
 705         /*** OPENID ***/
 706
 707         else if (!strcasecmp(el, "oid_url"))                    safestrncpy(openid_url, ChrPtr(migr_chardata), sizeof openid_url);
 708         else if (!strcasecmp(el, "oid_usernum"))                openid_usernum = atol(ChrPtr(migr_chardata));
 709
 710         else if (!strcasecmp(el, "openid")) {                   /* see serv_openid_rp.c for a description of the record format */
 711                 char *oid_data;
 712                 int oid_data_len;
 713                 oid_data_len = sizeof(long) + strlen(openid_url) + 1;
 714                 oid_data = malloc(oid_data_len);
 715                 memcpy(oid_data, &openid_usernum, sizeof(long));
 716                 memcpy(&oid_data[sizeof(long)], openid_url, strlen(openid_url) + 1);
 717                 cdb_store(CDB_EXTAUTH, openid_url, strlen(openid_url), oid_data, oid_data_len);
 718                 free(oid_data);
 719                 syslog(LOG_INFO, "Imported OpenID: %s (%ld)", openid_url, openid_usernum);
 720         }
 721
 722         /*** ROOM ***/
 723         else if ((!strncasecmp(el, HKEY("QR"))) &&
 724                  migr_roomrecord(data, el))
 725                 ; /* Nothing to do anymore */
 726         else if (!strcasecmp(el, "room")) {
 727                 CtdlPutRoom(&qrbuf);
 728                 syslog(LOG_INFO, "Imported room: %s", qrbuf.QRname);
 729         }
 730
 731         /*** ROOM MESSAGE POINTERS ***/
 732
 733         else if (!strcasecmp(el, "FRname"))                     safestrncpy(FRname, ChrPtr(migr_chardata), sizeof FRname);
 734
 735         else if (!strcasecmp(el, "FRmsglist")) {
 736                 if (!IsEmptyStr(FRname)) {
 737                         msgcount = 0;
 738                         msglist_alloc = 1000;
 739                         msglist = malloc(sizeof(long) * msglist_alloc);
 740
 741                         syslog(LOG_DEBUG, "Message list for: %s", FRname);
 742
 743                         ptr = ChrPtr(migr_chardata);
 744                         while (*ptr != 0) {
 745                                 while ((*ptr != 0) && (!isdigit(*ptr))) {
 746                                         ++ptr;
 747                                 }
 748                                 if ((*ptr != 0) && (isdigit(*ptr))) {
 749                                         msgnum = atol(ptr);
 750                                         if (msgnum > 0L) {
 751                                                 if (msgcount >= msglist_alloc) {
 752                                                         msglist_alloc *= 2;
 753                                                         msglist = realloc(msglist, sizeof(long) * msglist_alloc);
 754                                                 }
 755                                                 msglist[msgcount++] = msgnum;
 756                                                 }
 757                                         }
 758                                         while ((*ptr != 0) && (isdigit(*ptr))) {
 759                                                 ++ptr;
 760                                         }
 761                                 }
 762                         }
 763                         if (msgcount > 0) {
 764                                 CtdlSaveMsgPointersInRoom(FRname, msglist, msgcount, 0, NULL, 1);
 765                         }
 766                         free(msglist);
 767                         msglist = NULL;
 768                         msglist_alloc = 0;
 769                         syslog(LOG_DEBUG, "Imported %d messages.", msgcount);
 770                         if (server_shutting_down) {
 771                                 return;
 772                 }
 773         }
 774
 775         /*** FLOORS ***/
 776         else if ((!strncasecmp(el, HKEY("f_"))) &&
 777                  migr_floorrecord(data, el))
 778                 ; /* Nothing to do anymore */
 779
 780         else if (!strcasecmp(el, "floor")) {
 781                 CtdlPutFloor(&flbuf, floornum);
 782                 syslog(LOG_INFO, "Imported floor #%d (%s)", floornum, flbuf.f_name);
 783         }
 784
 785         /*** VISITS ***/
 786         else if ((!strncasecmp(el, HKEY("v_"))) && migr_visitrecord(data, el)) {
 787                 ; /* Nothing to do anymore */
 788         }
 789         else if (!strcasecmp(el, "visit")) {
 790                 put_visit(&vbuf);
 791                 syslog(LOG_INFO, "Imported visit: %ld/%ld/%ld", vbuf.v_roomnum, vbuf.v_roomgen, vbuf.v_usernum);
 792         }
 793
 794         /*** MESSAGES ***/
 795
 796         else if (!strcasecmp(el, "msg_msgnum"))                 smi.meta_msgnum = import_msgnum = atol(ChrPtr(migr_chardata));
 797         else if (!strcasecmp(el, "msg_meta_refcount"))          smi.meta_refcount = atoi(ChrPtr(migr_chardata));
 798         else if (!strcasecmp(el, "msg_meta_rfc822_length"))     smi.meta_rfc822_length = atoi(ChrPtr(migr_chardata));
 799         else if (!strcasecmp(el, "msg_meta_content_type"))      safestrncpy(smi.meta_content_type, ChrPtr(migr_chardata), sizeof smi.meta_content_type);
 800
 801         else if (!strcasecmp(el, "msg_text"))
 802         {
 803                 long rc;
 804                 struct CtdlMessage *msg;
 805
 806                 FlushStrBuf(migr_MsgData);
 807                 StrBufDecodeBase64To(migr_chardata, migr_MsgData);
 808
 809                 msg = CtdlDeserializeMessage(import_msgnum, -1,
 810                                              ChrPtr(migr_MsgData),
 811                                              StrLength(migr_MsgData));
 812                 if (msg != NULL) {
 813                         rc = CtdlSaveThisMessage(msg, import_msgnum, 0);
 814                         if (rc == 0) {
 815                                 PutMetaData(&smi);
 816                         }
 817                         CM_Free(msg);
 818                 }
 819                 else {
 820                         rc = -1;
 821                 }
 822
 823                 syslog(LOG_INFO,
 824                        "%s message #%ld, size=%d, refcount=%d, bodylength=%ld, content-type: %s",
 825                        (rc!= 0)?"failed to import ":"Imported ",
 826                        import_msgnum,
 827                        StrLength(migr_MsgData),
 828                        smi.meta_refcount,
 829                        smi.meta_rfc822_length,
 830                        smi.meta_content_type
 831                 );
 832                 memset(&smi, 0, sizeof(smi));
 833         }
 834
 835         /*** MORE GENERAL STUFF ***/
 836
 837         FlushStrBuf(migr_chardata);
 838 }
 839
 840
 841 /*
 842  * Import begins here
 843  */
 844 void migr_do_import(void) {
 845         StrBuf *Buf;
 846         XML_Parser xp;
 847         int Finished = 0;
 848
 849         unbuffer_output();
 850         migr_chardata = NewStrBufPlain(NULL, SIZ * 20);
 851         migr_MsgData = NewStrBufPlain(NULL, SIZ * 20);
 852         Buf = NewStrBufPlain(NULL, SIZ);
 853         xp = XML_ParserCreate(NULL);
 854         if (!xp) {
 855                 cprintf("%d Failed to create XML parser instance\n", ERROR+INTERNAL_ERROR);
 856                 return;
 857         }
 858         XML_SetElementHandler(xp, migr_xml_start, migr_xml_end);
 859         XML_SetCharacterDataHandler(xp, migr_xml_chardata);
 860
 861         CC->dont_term = 1;
 862
 863         cprintf("%d sock it to me\n", SEND_LISTING);
 864         unbuffer_output();
 865
 866         client_set_inbound_buf(SIZ * 10);
 867
 868         while (!Finished && client_read_random_blob(Buf, -1) >= 0) {
 869                 if ((StrLength(Buf) > 4) && !strcmp(ChrPtr(Buf) + StrLength(Buf) - 4, "000\n")) {
 870                         Finished = 1;
 871                         StrBufCutAt(Buf, StrLength(Buf) - 4, NULL);
 872                 }
 873                 if (server_shutting_down)
 874                         break;  // Should we break or return?
 875
 876                 if (StrLength(Buf) == 0)
 877                         continue;
 878
 879                 XML_Parse(xp, ChrPtr(Buf), StrLength(Buf), 0);
 880                 FlushStrBuf(Buf);
 881         }
 882
 883         XML_Parse(xp, "", 0, 1);
 884         XML_ParserFree(xp);
 885         FreeStrBuf(&Buf);
 886         FreeStrBuf(&migr_chardata);
 887         FreeStrBuf(&migr_MsgData);
 888         rebuild_euid_index();
 889         rebuild_usersbynumber();
 890         CtdlSetConfigInt("MM_fulltext_wordbreaker", -1);        // Set an invalid wordbreaker to force re-indexing
 891         CC->dont_term = 0;
 892 }
 893
 894
 895 /******************************************************************************
 896  *                         Dispatcher, Common code                            *
 897  ******************************************************************************/
 898 /*
 899  * Dump out the pathnames of directories which can be copied "as is"
 900  */
 901 void migr_do_listdirs(void) {
 902         cprintf("%d Don't forget these:\n", LISTING_FOLLOWS);
 903         cprintf("files|%s\n",           ctdl_file_dir);
 904         cprintf("messages|%s\n",        ctdl_message_dir);
 905         cprintf("keys|%s\n",            ctdl_key_dir);
 906         cprintf("000\n");
 907 }
 908
 909
 910 /******************************************************************************
 911  *                    Repair database integrity                               *
 912  ******************************************************************************/
 913
 914 StrBuf *PlainMessageBuf = NULL;
 915 HashList *UsedMessageIDS = NULL;
 916
 917 int migr_restore_message_metadata(long msgnum, int refcount)
 918 {
 919         CitContext *CCC = MyContext();
 920         struct MetaData smi;
 921         struct CtdlMessage *msg;
 922         char *mptr = NULL;
 923
 924         /* We can use a static buffer here because there will never be more than
 925          * one of this operation happening at any given time, and it's really best
 926          * to just keep it allocated once instead of torturing malloc/free.
 927          * Call this function with msgnum "-1" to free the buffer when finished.
 928          */
 929         static int encoded_alloc = 0;
 930         static char *encoded_msg = NULL;
 931
 932         if (msgnum < 0) {
 933                 if ((encoded_alloc == 0) && (encoded_msg != NULL)) {
 934                         free(encoded_msg);
 935                         encoded_alloc = 0;
 936                         encoded_msg = NULL;
 937                         // todo FreeStrBuf(&PlainMessageBuf); PlainMessageBuf = NULL;
 938                 }
 939                 return 0;
 940         }
 941
 942         if (PlainMessageBuf == NULL) {
 943                 PlainMessageBuf = NewStrBufPlain(NULL, 10*SIZ);
 944         }
 945
 946         /* Ok, here we go ... */
 947
 948         msg = CtdlFetchMessage(msgnum, 1, 0);
 949         if (msg == NULL) {
 950                 return 1;
 951         }
 952
 953         GetMetaData(&smi, msgnum);
 954         smi.meta_msgnum = msgnum;
 955         smi.meta_refcount = refcount;
 956
 957         /* restore the content type from the message body: */
 958         mptr = bmstrcasestr(msg->cm_fields[eMesageText], "Content-type:");
 959         if (mptr != NULL) {
 960                 char *aptr;
 961                 safestrncpy(smi.meta_content_type, &mptr[13], sizeof smi.meta_content_type);
 962                 striplt(smi.meta_content_type);
 963                 aptr = smi.meta_content_type;
 964                 while (!IsEmptyStr(aptr)) {
 965                         if ((*aptr == ';')
 966                             || (*aptr == ' ')
 967                             || (*aptr == 13)
 968                             || (*aptr == 10)) {
 969                                 memset(aptr, 0, sizeof(smi.meta_content_type) - (aptr - smi.meta_content_type));
 970                         }
 971                         else aptr++;
 972                 }
 973         }
 974
 975         CCC->redirect_buffer = PlainMessageBuf;
 976         CtdlOutputPreLoadedMsg(msg, MT_RFC822, HEADERS_ALL, 0, 1, QP_EADDR);
 977         smi.meta_rfc822_length = StrLength(CCC->redirect_buffer);
 978         CCC->redirect_buffer = NULL;
 979
 980         syslog(LOG_INFO,
 981                "Setting message #%ld meta data to: refcount=%d, bodylength=%ld, content-type: %s",
 982                smi.meta_msgnum,
 983                smi.meta_refcount,
 984                smi.meta_rfc822_length,
 985                smi.meta_content_type
 986         );
 987
 988         PutMetaData(&smi);
 989
 990         CM_Free(msg);
 991
 992         return 0;
 993 }
 994
 995
 996 void migr_check_room_msg(long msgnum, void *userdata) {
 997         fprintf(migr_global_message_list, "%ld %s\n", msgnum, CC->room.QRname);
 998 }
 999
1000
1001 void migr_check_rooms_backend(struct ctdlroom *buf, void *data) {
1002
1003         /* message list goes inside this tag */
1004
1005         CtdlGetRoom(&CC->room, buf->QRname);
1006         CtdlForEachMessage(MSGS_ALL, 0L, NULL, NULL, NULL, migr_check_room_msg, NULL);
1007 }
1008
1009
1010 void RemoveMessagesFromRooms(StrBuf *RoomNameVec, long msgnum) {
1011         struct MetaData smi;
1012         const char *Pos = NULL;
1013         StrBuf *oneRoom = NewStrBuf();
1014
1015         syslog(LOG_INFO, "removing message pointer %ld from these rooms: %s", msgnum, ChrPtr(RoomNameVec));
1016
1017         while (Pos != StrBufNOTNULL){
1018                 StrBufExtract_NextToken(oneRoom, RoomNameVec, &Pos, '|');
1019                 CtdlDeleteMessages(ChrPtr(oneRoom), &msgnum, 1, "");
1020         };
1021         GetMetaData(&smi, msgnum);
1022         AdjRefCount(msgnum, -smi.meta_refcount);
1023 }
1024
1025
1026 void migr_do_restore_meta(void) {
1027         char buf[SIZ];
1028         int failGetMessage;
1029         long msgnum = 0;
1030         int lastnum = 0;
1031         int refcount = 0;
1032         CitContext *Ctx;
1033         char *prn;
1034         StrBuf *RoomNames;
1035         char cmd[SIZ];
1036
1037         migr_global_message_list = fopen(migr_tempfilename1, "w");
1038         if (migr_global_message_list != NULL) {
1039                 CtdlForEachRoom(migr_check_rooms_backend, NULL);
1040                 fclose(migr_global_message_list);
1041         }
1042
1043         /*
1044          * Process the 'global' message list.  (Sort it and remove dups.
1045          * Dups are ok because a message may be in more than one room, but
1046          * this will be handled by exporting the reference count, not by
1047          * exporting the message multiple times.)
1048          */
1049         snprintf(cmd, sizeof cmd, "sort -n <%s >%s", migr_tempfilename1, migr_tempfilename2);
1050         if (system(cmd) != 0) syslog(LOG_ALERT, "Error %d", errno);
1051
1052         RoomNames = NewStrBuf();
1053         Ctx = CC;
1054         migr_global_message_list = fopen(migr_tempfilename2, "r");
1055         if (migr_global_message_list != NULL) {
1056                 syslog(LOG_INFO, "Opened %s", migr_tempfilename1);
1057                 while ((Ctx->kill_me == 0) &&
1058                        (fgets(buf, sizeof(buf), migr_global_message_list) != NULL)) {
1059                         msgnum = atol(buf);
1060                         if (msgnum == 0L)
1061                                 continue;
1062                         if (lastnum == 0) {
1063                                 lastnum = msgnum;
1064                         }
1065                         prn = strchr(buf, ' ');
1066                         if (lastnum != msgnum) {
1067                                 failGetMessage = migr_restore_message_metadata(lastnum, refcount);
1068                                 if (failGetMessage) {
1069                                         RemoveMessagesFromRooms(RoomNames, lastnum);
1070                                 }
1071                                 refcount = 1;
1072                                 lastnum = msgnum;
1073                                 if (prn != NULL) {
1074                                         StrBufPlain(RoomNames, prn + 1, -1);
1075                                 }
1076                                 StrBufTrim(RoomNames);
1077                         }
1078                         else {
1079                                 if (prn != NULL) {
1080                                         if (StrLength(RoomNames) > 0) {
1081                                                 StrBufAppendBufPlain(RoomNames, HKEY("|"), 0);
1082                                         }
1083                                         StrBufAppendBufPlain(RoomNames, prn, -1, 1);
1084                                         StrBufTrim(RoomNames);
1085                                 }
1086                                 refcount ++;
1087                         }
1088                         lastnum = msgnum;
1089                 }
1090                 failGetMessage = migr_restore_message_metadata(msgnum, refcount);
1091                 if (failGetMessage) {
1092                         RemoveMessagesFromRooms(RoomNames, lastnum);
1093                 }
1094                 fclose(migr_global_message_list);
1095         }
1096
1097         migr_restore_message_metadata(-1L, -1); /* This frees the encoding buffer */
1098         cprintf("%d system analysis completed", CIT_OK);
1099         Ctx->kill_me = 1;
1100 }
1101
1102
1103 /******************************************************************************
1104  *                         Dispatcher, Common code                            *
1105  ******************************************************************************/
1106 void cmd_migr(char *cmdbuf) {
1107         char cmd[32];
1108
1109         if (CtdlAccessCheck(ac_internal)) return;
1110
1111         if (CtdlTrySingleUser()) {
1112                 CtdlDisableHouseKeeping();
1113                 CtdlMakeTempFileName(migr_tempfilename1, sizeof migr_tempfilename1);
1114                 CtdlMakeTempFileName(migr_tempfilename2, sizeof migr_tempfilename2);
1115
1116                 extract_token(cmd, cmdbuf, 0, '|', sizeof cmd);
1117                 if (!strcasecmp(cmd, "export")) {
1118                         migr_do_export();
1119                 }
1120                 else if (!strcasecmp(cmd, "import")) {
1121                         migr_do_import();
1122                 }
1123                 else if (!strcasecmp(cmd, "listdirs")) {
1124                         migr_do_listdirs();
1125                 }
1126                 else if (!strcasecmp(cmd, "restoremeta")) {
1127                         migr_do_restore_meta();
1128                 }
1129                 else {
1130                         cprintf("%d illegal command\n", ERROR + ILLEGAL_VALUE);
1131                 }
1132
1133                 unlink(migr_tempfilename1);
1134                 unlink(migr_tempfilename2);
1135
1136                 CtdlEnableHouseKeeping();
1137                 CtdlEndSingleUser();
1138         }
1139         else {
1140                 cprintf("%d The migrator is already running.\n", ERROR + RESOURCE_BUSY);
1141         }
1142 }
1143
1144
1145 /******************************************************************************
1146  *                              Module Hook                                  *
1147  ******************************************************************************/
1148
1149 CTDL_MODULE_INIT(migrate)
1150 {
1151         if (!threading)
1152         {
1153                 CtdlRegisterProtoHook(cmd_migr, "MIGR", "Across-the-wire migration");
1154         }
1155
1156         /* return our module name for the log */
1157         return "migrate";
1158 }