citadel/modules/migrate/serv_migrate.c

   1 /*
   2  * This module dumps and/or loads the Citadel database in XML format.
   3  *
   4  * Copyright (c) 1987-2021 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%           started
  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  * 26-99%       exporting messages
  26  * 100%         finished exporting messages
  27  *
  28  * These tags are inserted into the XML stream to give the reader an approximation of its progress.
  29  */
  30
  31 #include "sysdep.h"
  32 #include <stdlib.h>
  33 #include <unistd.h>
  34 #include <stdio.h>
  35 #include <fcntl.h>
  36 #include <signal.h>
  37 #include <pwd.h>
  38 #include <errno.h>
  39 #include <sys/types.h>
  40 #include <time.h>
  41 #include <sys/wait.h>
  42 #include <string.h>
  43 #include <ctype.h>
  44 #include <limits.h>
  45 #include <expat.h>
  46 #include <libcitadel.h>
  47 #include "citadel.h"
  48 #include "server.h"
  49 #include "citserver.h"
  50 #include "support.h"
  51 #include "config.h"
  52 #include "database.h"
  53 #include "msgbase.h"
  54 #include "user_ops.h"
  55 #include "euidindex.h"
  56 #include "ctdl_module.h"
  57
  58 char migr_tempfilename1[PATH_MAX];
  59 char migr_tempfilename2[PATH_MAX];
  60 FILE *migr_global_message_list;
  61 int total_msgs = 0;
  62 char *ikey = NULL;                      // If we're importing a config key we store it here.
  63
  64 /******************************************************************************
  65  *        Code which implements the export appears in this section            *
  66  ******************************************************************************/
  67
  68 /*
  69  * Output a string to the client with these characters escaped:  & < > " '
  70  */
  71 void xml_strout(char *str) {
  72
  73         char *c = str;
  74
  75         if (str == NULL) {
  76                 return;
  77         }
  78
  79         while (*c != 0) {
  80                 if (*c == '\"') {
  81                         client_write(HKEY("&quot;"));
  82                 }
  83                 else if (*c == '\'') {
  84                         client_write(HKEY("&apos;"));
  85                 }
  86                 else if (*c == '<') {
  87                         client_write(HKEY("&lt;"));
  88                 }
  89                 else if (*c == '>') {
  90                         client_write(HKEY("&gt;"));
  91                 }
  92                 else if (*c == '&') {
  93                         client_write(HKEY("&amp;"));
  94                 }
  95                 else {
  96                         client_write(c, 1);
  97                 }
  98                 ++c;
  99         }
 100 }
 101
 102
 103 /*
 104  * Export a user record as XML
 105  */
 106 void migr_export_users_backend(char *username, void *data) {
 107
 108         struct ctdluser u;
 109         if (CtdlGetUser(&u, username) != 0) {
 110                 return;
 111         }
 112
 113         client_write(HKEY("<user>\n"));
 114         cprintf("<u_version>%d</u_version>\n", u.version);
 115         cprintf("<u_uid>%ld</u_uid>\n", (long)u.uid);
 116         client_write(HKEY("<u_password>"));     xml_strout(u.password);         client_write(HKEY("</u_password>\n"));
 117         cprintf("<u_flags>%u</u_flags>\n", u.flags);
 118         cprintf("<u_timescalled>%ld</u_timescalled>\n", u.timescalled);
 119         cprintf("<u_posted>%ld</u_posted>\n", u.posted);
 120         cprintf("<u_axlevel>%d</u_axlevel>\n", u.axlevel);
 121         cprintf("<u_usernum>%ld</u_usernum>\n", u.usernum);
 122         cprintf("<u_lastcall>%ld</u_lastcall>\n", (long)u.lastcall);
 123         cprintf("<u_USuserpurge>%d</u_USuserpurge>\n", u.USuserpurge);
 124         client_write(HKEY("<u_fullname>"));     xml_strout(u.fullname);         client_write(HKEY("</u_fullname>\n"));
 125         cprintf("<u_msgnum_bio>%ld</u_msgnum_bio>\n", u.msgnum_bio);
 126         cprintf("<u_msgnum_pic>%ld</u_msgnum_pic>\n", u.msgnum_pic);
 127         cprintf("<u_emailaddrs>%s</u_emailaddrs>\n", u.emailaddrs);
 128         cprintf("<u_msgnum_inboxrules>%ld</u_msgnum_inboxrules>\n", u.msgnum_inboxrules);
 129         cprintf("<u_lastproc_inboxrules>%ld</u_lastproc_inboxrules>\n", u.lastproc_inboxrules);
 130         client_write(HKEY("</user>\n"));
 131 }
 132
 133
 134 void migr_export_users(void) {
 135         ForEachUser(migr_export_users_backend, NULL);
 136 }
 137
 138
 139 void migr_export_room_msg(long msgnum, void *userdata) {
 140         static int count = 0;
 141
 142         cprintf("%ld,", msgnum);
 143         if (++count%10==0) {
 144                 cprintf("\n");
 145         }
 146         fprintf(migr_global_message_list, "%ld\n", msgnum);
 147 }
 148
 149
 150 void migr_export_rooms_backend(struct ctdlroom *buf, void *data) {
 151         client_write(HKEY("<room>\n"));
 152         client_write(HKEY("<QRname>"));
 153         xml_strout(buf->QRname);
 154         client_write(HKEY("</QRname>\n"));
 155         client_write(HKEY("<QRpasswd>"));
 156         xml_strout(buf->QRpasswd);
 157         client_write(HKEY("</QRpasswd>\n"));
 158         cprintf("<QRroomaide>%ld</QRroomaide>\n", buf->QRroomaide);
 159         cprintf("<QRhighest>%ld</QRhighest>\n", buf->QRhighest);
 160         cprintf("<QRgen>%ld</QRgen>\n", (long)buf->QRgen);
 161         cprintf("<QRflags>%u</QRflags>\n", buf->QRflags);
 162         if (buf->QRflags & QR_DIRECTORY) {
 163                 client_write(HKEY("<QRdirname>"));
 164                 xml_strout(buf->QRdirname);
 165                 client_write(HKEY("</QRdirname>\n"));
 166         }
 167         cprintf("<QRfloor>%d</QRfloor>\n", buf->QRfloor);
 168         cprintf("<QRmtime>%ld</QRmtime>\n", (long)buf->QRmtime);
 169         cprintf("<QRexpire_mode>%d</QRexpire_mode>\n", buf->QRep.expire_mode);
 170         cprintf("<QRexpire_value>%d</QRexpire_value>\n", buf->QRep.expire_value);
 171         cprintf("<QRnumber>%ld</QRnumber>\n", buf->QRnumber);
 172         cprintf("<QRorder>%d</QRorder>\n", buf->QRorder);
 173         cprintf("<QRflags2>%u</QRflags2>\n", buf->QRflags2);
 174         cprintf("<QRdefaultview>%d</QRdefaultview>\n", buf->QRdefaultview);
 175         cprintf("<msgnum_info>%ld</msgnum_info>\n", buf->msgnum_info);
 176         cprintf("<msgnum_pic>%ld</msgnum_pic>\n", buf->msgnum_pic);
 177         client_write(HKEY("</room>\n"));
 178
 179         /* message list goes inside this tag */
 180         CtdlGetRoom(&CC->room, buf->QRname);
 181         client_write(HKEY("<room_messages>"));
 182         client_write(HKEY("<FRname>"));
 183         xml_strout(buf->QRname);                        // buf->QRname rather than CC->room.QRname to guarantee consistency
 184         client_write(HKEY("</FRname>\n"));
 185         client_write(HKEY("<FRmsglist>\n"));
 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 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) {
 208                 syslog(LOG_ERR, "migrate: error %d", errno);
 209         }
 210         snprintf(cmd, sizeof cmd, "uniq <%s >%s", migr_tempfilename2, migr_tempfilename1);
 211         if (system(cmd) != 0) {
 212                 syslog(LOG_ERR, "migrate: error %d", errno);
 213         }
 214
 215         snprintf(cmd, sizeof cmd, "wc -l %s", migr_tempfilename1);
 216         FILE *fp = popen(cmd, "r");
 217         if (fp) {
 218                 fgets(cmd, sizeof cmd, fp);
 219                 pclose(fp);
 220                 total_msgs = atoi(cmd);
 221         }
 222         else {
 223                 total_msgs = 1; // any nonzero just to keep it from barfing
 224         }
 225         syslog(LOG_DEBUG, "migrate: total messages to be exported: %d", total_msgs);
 226 }
 227
 228
 229 void migr_export_floors(void) {
 230         struct floor qfbuf, *buf;
 231         int i;
 232
 233         for (i=0; i < MAXFLOORS; ++i) {
 234                 client_write(HKEY("<floor>\n"));
 235                 cprintf("<f_num>%d</f_num>\n", i);
 236                 CtdlGetFloor(&qfbuf, i);
 237                 buf = &qfbuf;
 238                 cprintf("<f_flags>%u</f_flags>\n", buf->f_flags);
 239                 client_write(HKEY("<f_name>")); xml_strout(buf->f_name); client_write(HKEY("</f_name>\n"));
 240                 cprintf("<f_ref_count>%d</f_ref_count>\n", buf->f_ref_count);
 241                 cprintf("<f_ep_expire_mode>%d</f_ep_expire_mode>\n", buf->f_ep.expire_mode);
 242                 cprintf("<f_ep_expire_value>%d</f_ep_expire_value>\n", buf->f_ep.expire_value);
 243                 client_write(HKEY("</floor>\n"));
 244         }
 245 }
 246
 247
 248 /*
 249  * Return nonzero if the supplied string contains only characters which are valid in a sequence set.
 250  */
 251 int is_sequence_set(char *s) {
 252         if (!s) return(0);
 253
 254         char *c = s;
 255         char ch;
 256         while (ch = *c++, ch) {
 257                 if (!strchr("0123456789*,:", ch)) {
 258                         return(0);
 259                 }
 260         }
 261         return(1);
 262 }
 263
 264
 265 /*
 266  *  Traverse the visits file...
 267  */
 268 void migr_export_visits(void) {
 269         visit vbuf;
 270         struct cdbdata *cdbv;
 271
 272         cdb_rewind(CDB_VISIT);
 273
 274         while (cdbv = cdb_next_item(CDB_VISIT), cdbv != NULL) {
 275                 memset(&vbuf, 0, sizeof(visit));
 276                 memcpy(&vbuf, cdbv->ptr,
 277                        ((cdbv->len > sizeof(visit)) ?
 278                         sizeof(visit) : cdbv->len));
 279                 cdb_free(cdbv);
 280
 281                 client_write(HKEY("<visit>\n"));
 282                 cprintf("<v_roomnum>%ld</v_roomnum>\n", vbuf.v_roomnum);
 283                 cprintf("<v_roomgen>%ld</v_roomgen>\n", vbuf.v_roomgen);
 284                 cprintf("<v_usernum>%ld</v_usernum>\n", vbuf.v_usernum);
 285
 286                 client_write(HKEY("<v_seen>"));
 287                 if ( (!IsEmptyStr(vbuf.v_seen)) && (is_sequence_set(vbuf.v_seen)) ) {
 288                         xml_strout(vbuf.v_seen);
 289                 }
 290                 else {
 291                         cprintf("%ld", vbuf.v_lastseen);
 292                 }
 293                 client_write(HKEY("</v_seen>"));
 294
 295                 if ( (!IsEmptyStr(vbuf.v_answered)) && (is_sequence_set(vbuf.v_answered)) ) {
 296                         client_write(HKEY("<v_answered>"));
 297                         xml_strout(vbuf.v_answered);
 298                         client_write(HKEY("</v_answered>\n"));
 299                 }
 300
 301                 cprintf("<v_flags>%u</v_flags>\n", vbuf.v_flags);
 302                 cprintf("<v_view>%d</v_view>\n", vbuf.v_view);
 303                 client_write(HKEY("</visit>\n"));
 304         }
 305 }
 306
 307
 308 void migr_export_message(long msgnum) {
 309         struct MetaData smi;
 310         struct CtdlMessage *msg;
 311         struct ser_ret smr;
 312
 313         /* We can use a static buffer here because there will never be more than
 314          * one of this operation happening at any given time, and it's really best
 315          * to just keep it allocated once instead of torturing malloc/free.
 316          * Call this function with msgnum "-1" to free the buffer when finished.
 317          */
 318         static int encoded_alloc = 0;
 319         static char *encoded_msg = NULL;
 320
 321         if (msgnum < 0) {
 322                 if ((encoded_alloc == 0) && (encoded_msg != NULL)) {
 323                         free(encoded_msg);
 324                         encoded_alloc = 0;
 325                         encoded_msg = NULL;
 326                 }
 327                 return;
 328         }
 329
 330         /* Ok, here we go ... */
 331
 332         msg = CtdlFetchMessage(msgnum, 1);
 333         if (msg == NULL) return;        /* fail silently */
 334
 335         client_write(HKEY("<message>\n"));
 336         GetMetaData(&smi, msgnum);
 337         cprintf("<msg_msgnum>%ld</msg_msgnum>\n", msgnum);
 338         cprintf("<msg_meta_refcount>%d</msg_meta_refcount>\n", smi.meta_refcount);
 339         cprintf("<msg_meta_rfc822_length>%ld</msg_meta_rfc822_length>\n", smi.meta_rfc822_length);
 340         client_write(HKEY("<msg_meta_content_type>")); xml_strout(smi.meta_content_type); client_write(HKEY("</msg_meta_content_type>\n"));
 341
 342         client_write(HKEY("<msg_text>"));
 343         CtdlSerializeMessage(&smr, msg);
 344         CM_Free(msg);
 345
 346         /* Predict the buffer size we need.  Expand the buffer if necessary. */
 347         int encoded_len = smr.len * 15 / 10 ;
 348         if (encoded_len > encoded_alloc) {
 349                 encoded_alloc = encoded_len;
 350                 encoded_msg = realloc(encoded_msg, encoded_alloc);
 351         }
 352
 353         if (encoded_msg == NULL) {
 354                 /* Questionable hack that hopes it'll work next time and we only lose one message */
 355                 encoded_alloc = 0;
 356         }
 357         else {
 358                 /* Once we do the encoding we know the exact size */
 359                 encoded_len = CtdlEncodeBase64(encoded_msg, (char *)smr.ser, smr.len, 1);
 360                 client_write(encoded_msg, encoded_len);
 361         }
 362
 363         free(smr.ser);
 364
 365         client_write(HKEY("</msg_text>\n"));
 366         client_write(HKEY("</message>\n"));
 367 }
 368
 369
 370 void migr_export_openids(void) {
 371         struct cdbdata *cdboi;
 372         long usernum;
 373         char url[512];
 374
 375         cdb_rewind(CDB_EXTAUTH);
 376         while (cdboi = cdb_next_item(CDB_EXTAUTH), cdboi != NULL) {
 377                 if (cdboi->len > sizeof(long)) {
 378                         client_write(HKEY("<openid>\n"));
 379                         memcpy(&usernum, cdboi->ptr, sizeof(long));
 380                         snprintf(url, sizeof url, "%s", (cdboi->ptr)+sizeof(long) );
 381                         client_write(HKEY("<oid_url>"));
 382                         xml_strout(url);
 383                         client_write(HKEY("</oid_url>\n"));
 384                         cprintf("<oid_usernum>%ld</oid_usernum>\n", usernum);
 385                         client_write(HKEY("</openid>\n"));
 386                 }
 387                 cdb_free(cdboi);
 388         }
 389 }
 390
 391
 392 void migr_export_configs(void) {
 393         struct cdbdata *cdbcfg;
 394         int keylen = 0;
 395         char *key = NULL;
 396         char *value = NULL;
 397
 398         cdb_rewind(CDB_CONFIG);
 399         while (cdbcfg = cdb_next_item(CDB_CONFIG), cdbcfg != NULL) {
 400
 401                 keylen = strlen(cdbcfg->ptr);
 402                 key = cdbcfg->ptr;
 403                 value = cdbcfg->ptr + keylen + 1;
 404
 405                 client_write("<config key=\"", 13);
 406                 xml_strout(key);
 407                 client_write("\">", 2);
 408                 xml_strout(value);
 409                 client_write("</config>\n", 10);
 410                 cdb_free(cdbcfg);
 411         }
 412 }
 413
 414
 415 void migr_export_messages(void) {
 416         char buf[SIZ];
 417         long msgnum;
 418         int count = 0;
 419         int progress = 0;
 420         int prev_progress = 0;
 421         CitContext *Ctx;
 422
 423         Ctx = CC;
 424         migr_global_message_list = fopen(migr_tempfilename1, "r");
 425         if (migr_global_message_list != NULL) {
 426                 syslog(LOG_INFO, "migrate: opened %s", migr_tempfilename1);
 427                 while ((Ctx->kill_me == 0) &&
 428                        (fgets(buf, sizeof(buf), migr_global_message_list) != NULL)) {
 429                         msgnum = atol(buf);
 430                         if (msgnum > 0L) {
 431                                 migr_export_message(msgnum);
 432                                 ++count;
 433                         }
 434                         progress = (count * 74 / total_msgs) + 25 ;
 435                         if ((progress > prev_progress) && (progress < 100)) {
 436                                 cprintf("<progress>%d</progress>\n", progress);
 437                         }
 438                         prev_progress = progress;
 439                 }
 440                 fclose(migr_global_message_list);
 441         }
 442         if (Ctx->kill_me == 0) {
 443                 syslog(LOG_INFO, "migrate: exported %d messages.", count);
 444         }
 445         else {
 446                 syslog(LOG_ERR, "migrate: export aborted due to client disconnect!");
 447         }
 448
 449         migr_export_message(-1L);       /* This frees the encoding buffer */
 450 }
 451
 452
 453 void migr_do_export(void) {
 454         CitContext *Ctx;
 455
 456         Ctx = CC;
 457         cprintf("%d Exporting all Citadel databases.\n", LISTING_FOLLOWS);
 458         Ctx->dont_term = 1;
 459
 460         client_write(HKEY("<?xml version=\"1.0\" encoding=\"UTF-8\" ?>\n"));
 461         client_write(HKEY("<citadel_migrate_data>\n"));
 462         cprintf("<version>%d</version>\n", REV_LEVEL);
 463         cprintf("<progress>%d</progress>\n", 0);
 464
 465         /* export the configuration database */
 466         migr_export_configs();
 467         cprintf("<progress>%d</progress>\n", 2);
 468
 469         if (Ctx->kill_me == 0)  migr_export_users();
 470         cprintf("<progress>%d</progress>\n", 7);
 471         if (Ctx->kill_me == 0)  migr_export_openids();
 472         cprintf("<progress>%d</progress>\n", 12);
 473         if (Ctx->kill_me == 0)  migr_export_rooms();
 474         cprintf("<progress>%d</progress>\n", 17);
 475         if (Ctx->kill_me == 0)  migr_export_floors();
 476         cprintf("<progress>%d</progress>\n", 18);
 477         if (Ctx->kill_me == 0)  migr_export_visits();
 478         cprintf("<progress>%d</progress>\n", 25);
 479         if (Ctx->kill_me == 0)  migr_export_messages();
 480         cprintf("<progress>%d</progress>\n", 100);
 481         client_write(HKEY("</citadel_migrate_data>\n"));
 482         client_write(HKEY("000\n"));
 483         Ctx->dont_term = 0;
 484 }
 485
 486
 487 /******************************************************************************
 488  *                              Import code                                   *
 489  *    Here's the code that implements the import side.  It's going to end up  *
 490  *        being one big loop with lots of global variables.  I don't care.    *
 491  * You wouldn't run multiple concurrent imports anyway.  If this offends your *
 492  * delicate sensibilities  then go rewrite it in Ruby on Rails or something.  *
 493  ******************************************************************************/
 494
 495
 496 int citadel_migrate_data = 0;           /* Are we inside a <citadel_migrate_data> tag pair? */
 497 StrBuf *migr_chardata = NULL;
 498 StrBuf *migr_MsgData = NULL;
 499 struct ctdluser usbuf;
 500 struct ctdlroom qrbuf;
 501 char openid_url[512];
 502 long openid_usernum = 0;
 503 char FRname[ROOMNAMELEN];
 504 struct floor flbuf;
 505 int floornum = 0;
 506 visit vbuf;
 507 struct MetaData smi;
 508 long import_msgnum = 0;
 509
 510 /*
 511  * This callback stores up the data which appears in between tags.
 512  */
 513 void migr_xml_chardata(void *data, const XML_Char *s, int len) {
 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_ERR, "migrate: 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         if (!strcasecmp(el, "u_version"))                       usbuf.version = atoi(ChrPtr(migr_chardata));
 578         else if (!strcasecmp(el, "u_uid"))                      usbuf.uid = atol(ChrPtr(migr_chardata));
 579         else if (!strcasecmp(el, "u_password"))                 safestrncpy(usbuf.password, ChrPtr(migr_chardata), sizeof usbuf.password);
 580         else if (!strcasecmp(el, "u_flags"))                    usbuf.flags = atoi(ChrPtr(migr_chardata));
 581         else if (!strcasecmp(el, "u_timescalled"))              usbuf.timescalled = atol(ChrPtr(migr_chardata));
 582         else if (!strcasecmp(el, "u_posted"))                   usbuf.posted = atol(ChrPtr(migr_chardata));
 583         else if (!strcasecmp(el, "u_axlevel"))                  usbuf.axlevel = atoi(ChrPtr(migr_chardata));
 584         else if (!strcasecmp(el, "u_usernum"))                  usbuf.usernum = atol(ChrPtr(migr_chardata));
 585         else if (!strcasecmp(el, "u_lastcall"))                 usbuf.lastcall = atol(ChrPtr(migr_chardata));
 586         else if (!strcasecmp(el, "u_USuserpurge"))              usbuf.USuserpurge = atoi(ChrPtr(migr_chardata));
 587         else if (!strcasecmp(el, "u_fullname"))                 safestrncpy(usbuf.fullname, ChrPtr(migr_chardata), sizeof usbuf.fullname);
 588         else if (!strcasecmp(el, "u_msgnum_bio"))               usbuf.msgnum_bio = atol(ChrPtr(migr_chardata));
 589         else if (!strcasecmp(el, "u_msgnum_pic"))               usbuf.msgnum_pic = atol(ChrPtr(migr_chardata));
 590         else if (!strcasecmp(el, "u_emailaddrs"))               safestrncpy(usbuf.emailaddrs, ChrPtr(migr_chardata), sizeof usbuf.emailaddrs);
 591         else if (!strcasecmp(el, "u_msgnum_inboxrules"))        usbuf.msgnum_inboxrules = atol(ChrPtr(migr_chardata));
 592         else if (!strcasecmp(el, "u_lastproc_inboxrules"))      usbuf.lastproc_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         if (!strcasecmp(el, "QRname"))                          safestrncpy(qrbuf.QRname, ChrPtr(migr_chardata), sizeof qrbuf.QRname);
 600         else if (!strcasecmp(el, "QRpasswd"))                   safestrncpy(qrbuf.QRpasswd, ChrPtr(migr_chardata), sizeof qrbuf.QRpasswd);
 601         else if (!strcasecmp(el, "QRroomaide"))                 qrbuf.QRroomaide = atol(ChrPtr(migr_chardata));
 602         else if (!strcasecmp(el, "QRhighest"))                  qrbuf.QRhighest = atol(ChrPtr(migr_chardata));
 603         else if (!strcasecmp(el, "QRgen"))                      qrbuf.QRgen = atol(ChrPtr(migr_chardata));
 604         else if (!strcasecmp(el, "QRflags"))                    qrbuf.QRflags = atoi(ChrPtr(migr_chardata));
 605         else if (!strcasecmp(el, "QRdirname"))                  safestrncpy(qrbuf.QRdirname, ChrPtr(migr_chardata), sizeof qrbuf.QRdirname);
 606         else if (!strcasecmp(el, "QRfloor"))                    qrbuf.QRfloor = atoi(ChrPtr(migr_chardata));
 607         else if (!strcasecmp(el, "QRmtime"))                    qrbuf.QRmtime = atol(ChrPtr(migr_chardata));
 608         else if (!strcasecmp(el, "QRexpire_mode"))              qrbuf.QRep.expire_mode = atoi(ChrPtr(migr_chardata));
 609         else if (!strcasecmp(el, "QRexpire_value"))             qrbuf.QRep.expire_value = atoi(ChrPtr(migr_chardata));
 610         else if (!strcasecmp(el, "QRnumber"))                   qrbuf.QRnumber = atol(ChrPtr(migr_chardata));
 611         else if (!strcasecmp(el, "QRorder"))                    qrbuf.QRorder = atoi(ChrPtr(migr_chardata));
 612         else if (!strcasecmp(el, "QRflags2"))                   qrbuf.QRflags2 = atoi(ChrPtr(migr_chardata));
 613         else if (!strcasecmp(el, "QRdefaultview"))              qrbuf.QRdefaultview = atoi(ChrPtr(migr_chardata));
 614         else if (!strcasecmp(el, "msgnum_info"))                qrbuf.msgnum_info = atol(ChrPtr(migr_chardata));
 615         else if (!strcasecmp(el, "msgnum_pic"))                 qrbuf.msgnum_pic = atol(ChrPtr(migr_chardata));
 616         else return 0;
 617         return 1;
 618 }
 619
 620
 621 int migr_floorrecord(void *data, const char *el) {
 622         if (!strcasecmp(el, "f_num"))                           floornum = atoi(ChrPtr(migr_chardata));
 623         else if (!strcasecmp(el, "f_flags"))                    flbuf.f_flags = atoi(ChrPtr(migr_chardata));
 624         else if (!strcasecmp(el, "f_name"))                     safestrncpy(flbuf.f_name, ChrPtr(migr_chardata), sizeof flbuf.f_name);
 625         else if (!strcasecmp(el, "f_ref_count"))                flbuf.f_ref_count = atoi(ChrPtr(migr_chardata));
 626         else if (!strcasecmp(el, "f_ep_expire_mode"))           flbuf.f_ep.expire_mode = atoi(ChrPtr(migr_chardata));
 627         else if (!strcasecmp(el, "f_ep_expire_value"))          flbuf.f_ep.expire_value = atoi(ChrPtr(migr_chardata));
 628         else return 0;
 629         return 1;
 630 }
 631
 632
 633 int migr_visitrecord(void *data, const char *el) {
 634         if (!strcasecmp(el, "v_roomnum"))                       vbuf.v_roomnum = atol(ChrPtr(migr_chardata));
 635         else if (!strcasecmp(el, "v_roomgen"))                  vbuf.v_roomgen = atol(ChrPtr(migr_chardata));
 636         else if (!strcasecmp(el, "v_usernum"))                  vbuf.v_usernum = atol(ChrPtr(migr_chardata));
 637
 638         else if (!strcasecmp(el, "v_seen")) {
 639                 int is_textual_seen = 0;
 640                 int i;
 641                 int max = StrLength(migr_chardata);
 642
 643                 vbuf.v_lastseen = atol(ChrPtr(migr_chardata));
 644                 is_textual_seen = 0;
 645                 for (i=0; i < max; ++i)
 646                         if (!isdigit(ChrPtr(migr_chardata)[i]))
 647                                 is_textual_seen = 1;
 648                 if (is_textual_seen)
 649                         safestrncpy(vbuf.v_seen, ChrPtr(migr_chardata), sizeof vbuf.v_seen);
 650         }
 651
 652         else if (!strcasecmp(el, "v_answered"))                 safestrncpy(vbuf.v_answered, ChrPtr(migr_chardata), sizeof vbuf.v_answered);
 653         else if (!strcasecmp(el, "v_flags"))                    vbuf.v_flags = atoi(ChrPtr(migr_chardata));
 654         else if (!strcasecmp(el, "v_view"))                     vbuf.v_view = atoi(ChrPtr(migr_chardata));
 655         else return 0;
 656         return 1;
 657 }
 658
 659
 660 void migr_xml_end(void *data, const char *el) {
 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_ERR, "migrate: 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                 syslog(LOG_DEBUG, "migrate: imported config key=%s", ikey);
 684
 685                 if (ikey != NULL) {
 686                         CtdlSetConfigStr(ikey, (char *)ChrPtr(migr_chardata));
 687                         free(ikey);
 688                         ikey = NULL;
 689                 }
 690                 else {
 691                         syslog(LOG_INFO, "migrate: closed a <config> tag but no key name was supplied.");
 692                 }
 693         }
 694
 695         /*** USER ***/
 696         else if ((!strncasecmp(el, HKEY("u_"))) &&
 697                  migr_userrecord(data, el))
 698                 ; /* Nothing to do anymore */
 699         else if (!strcasecmp(el, "user")) {
 700                 CtdlPutUser(&usbuf);
 701                 syslog(LOG_INFO, "migrate: imported user: %s", usbuf.fullname);
 702         }
 703
 704         /*** OPENID ***/
 705
 706         else if (!strcasecmp(el, "oid_url"))                    safestrncpy(openid_url, ChrPtr(migr_chardata), sizeof openid_url);
 707         else if (!strcasecmp(el, "oid_usernum"))                openid_usernum = atol(ChrPtr(migr_chardata));
 708
 709         else if (!strcasecmp(el, "openid")) {                   /* see serv_openid_rp.c for a description of the record format */
 710                 char *oid_data;
 711                 int oid_data_len;
 712                 oid_data_len = sizeof(long) + strlen(openid_url) + 1;
 713                 oid_data = malloc(oid_data_len);
 714                 memcpy(oid_data, &openid_usernum, sizeof(long));
 715                 memcpy(&oid_data[sizeof(long)], openid_url, strlen(openid_url) + 1);
 716                 cdb_store(CDB_EXTAUTH, openid_url, strlen(openid_url), oid_data, oid_data_len);
 717                 free(oid_data);
 718                 syslog(LOG_INFO, "migrate: imported OpenID: %s (%ld)", openid_url, openid_usernum);
 719         }
 720
 721         /*** ROOM ***/
 722         else if ((!strncasecmp(el, HKEY("QR"))) &&
 723                  migr_roomrecord(data, el))
 724                 ; /* Nothing to do anymore */
 725         else if (!strcasecmp(el, "room")) {
 726                 CtdlPutRoom(&qrbuf);
 727                 syslog(LOG_INFO, "migrate: imported room: %s", qrbuf.QRname);
 728         }
 729
 730         /*** ROOM MESSAGE POINTERS ***/
 731
 732         else if (!strcasecmp(el, "FRname")) {
 733                 safestrncpy(FRname, ChrPtr(migr_chardata), sizeof FRname);
 734         }
 735
 736         else if (!strcasecmp(el, "FRmsglist")) {
 737                 if (!IsEmptyStr(FRname)) {
 738                         msgcount = 0;
 739                         msglist_alloc = 1000;
 740                         msglist = malloc(sizeof(long) * msglist_alloc);
 741
 742                         syslog(LOG_DEBUG, "migrate: message list for: %s", FRname);
 743
 744                         ptr = ChrPtr(migr_chardata);
 745                         while (*ptr != 0) {
 746                                 while ((*ptr != 0) && (!isdigit(*ptr))) {
 747                                         ++ptr;
 748                                 }
 749                                 if ((*ptr != 0) && (isdigit(*ptr))) {
 750                                         msgnum = atol(ptr);
 751                                         if (msgnum > 0L) {
 752                                                 if (msgcount >= msglist_alloc) {
 753                                                         msglist_alloc *= 2;
 754                                                         msglist = realloc(msglist, sizeof(long) * msglist_alloc);
 755                                                 }
 756                                                 msglist[msgcount++] = msgnum;
 757                                                 }
 758                                         }
 759                                         while ((*ptr != 0) && (isdigit(*ptr))) {
 760                                                 ++ptr;
 761                                         }
 762                                 }
 763                         }
 764                         if (msgcount > 0) {
 765                                 CtdlSaveMsgPointersInRoom(FRname, msglist, msgcount, 0, NULL, 1);
 766                         }
 767                         free(msglist);
 768                         msglist = NULL;
 769                         msglist_alloc = 0;
 770                         syslog(LOG_DEBUG, "migrate: imported %d messages.", msgcount);
 771                         if (server_shutting_down) {
 772                                 return;
 773                 }
 774         }
 775
 776         /*** FLOORS ***/
 777         else if ((!strncasecmp(el, HKEY("f_"))) &&
 778                  migr_floorrecord(data, el))
 779                 ; /* Nothing to do anymore */
 780
 781         else if (!strcasecmp(el, "floor")) {
 782                 CtdlPutFloor(&flbuf, floornum);
 783                 syslog(LOG_INFO, "migrate: imported floor #%d (%s)", floornum, flbuf.f_name);
 784         }
 785
 786         /*** VISITS ***/
 787         else if ((!strncasecmp(el, HKEY("v_"))) && migr_visitrecord(data, el)) {
 788                 ; /* Nothing to do anymore */
 789         }
 790         else if (!strcasecmp(el, "visit")) {
 791                 put_visit(&vbuf);
 792                 syslog(LOG_INFO, "migrate: imported visit: %ld/%ld/%ld", vbuf.v_roomnum, vbuf.v_roomgen, vbuf.v_usernum);
 793         }
 794
 795         /*** MESSAGES ***/
 796
 797         else if (!strcasecmp(el, "msg_msgnum"))                 smi.meta_msgnum = import_msgnum = atol(ChrPtr(migr_chardata));
 798         else if (!strcasecmp(el, "msg_meta_refcount"))          smi.meta_refcount = atoi(ChrPtr(migr_chardata));
 799         else if (!strcasecmp(el, "msg_meta_rfc822_length"))     smi.meta_rfc822_length = atoi(ChrPtr(migr_chardata));
 800         else if (!strcasecmp(el, "msg_meta_content_type"))      safestrncpy(smi.meta_content_type, ChrPtr(migr_chardata), sizeof smi.meta_content_type);
 801
 802         else if (!strcasecmp(el, "msg_text")) {
 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                        "migrate: %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         XML_Parser xp;
 846         char buf[SIZ];
 847
 848         unbuffer_output();
 849         migr_chardata = NewStrBufPlain(NULL, SIZ * 20);
 850         migr_MsgData = NewStrBufPlain(NULL, SIZ * 20);
 851         xp = XML_ParserCreate(NULL);
 852         if (!xp) {
 853                 cprintf("%d Failed to create XML parser instance\n", ERROR+INTERNAL_ERROR);
 854                 return;
 855         }
 856         XML_SetElementHandler(xp, migr_xml_start, migr_xml_end);
 857         XML_SetCharacterDataHandler(xp, migr_xml_chardata);
 858
 859         CC->dont_term = 1;
 860
 861         cprintf("%d sock it to me\n", SEND_LISTING);
 862         unbuffer_output();
 863
 864         client_set_inbound_buf(SIZ * 10);
 865
 866         while (client_getln(buf, sizeof buf) >= 0 && strcmp(buf, "000")) {
 867                 XML_Parse(xp, buf, strlen(buf), 0);
 868                 if (server_shutting_down)
 869                         break;  // Should we break or return?
 870         }
 871
 872         XML_Parse(xp, "", 0, 1);
 873         XML_ParserFree(xp);
 874         FreeStrBuf(&migr_chardata);
 875         FreeStrBuf(&migr_MsgData);
 876         rebuild_euid_index();
 877         rebuild_usersbynumber();
 878         CtdlSetConfigInt("MM_fulltext_wordbreaker", -1);        // Set an invalid wordbreaker to force re-indexing
 879         CC->dont_term = 0;
 880 }
 881
 882
 883 /******************************************************************************
 884  *                         Dispatcher, Common code                            *
 885  ******************************************************************************/
 886 /*
 887  * Dump out the pathnames of directories which can be copied "as is"
 888  */
 889 void migr_do_listdirs(void) {
 890         cprintf("%d Don't forget these:\n", LISTING_FOLLOWS);
 891         cprintf("files|%s\n",           ctdl_file_dir);
 892         cprintf("messages|%s\n",        ctdl_message_dir);
 893         cprintf("keys|%s\n",            ctdl_key_dir);
 894         cprintf("000\n");
 895 }
 896
 897
 898 /******************************************************************************
 899  *                    Repair database integrity                               *
 900  ******************************************************************************/
 901
 902 StrBuf *PlainMessageBuf = NULL;
 903 HashList *UsedMessageIDS = NULL;
 904
 905 int migr_restore_message_metadata(long msgnum, int refcount) {
 906         struct MetaData smi;
 907         struct CtdlMessage *msg;
 908         char *mptr = NULL;
 909
 910         /* We can use a static buffer here because there will never be more than
 911          * one of this operation happening at any given time, and it's really best
 912          * to just keep it allocated once instead of torturing malloc/free.
 913          * Call this function with msgnum "-1" to free the buffer when finished.
 914          */
 915         static int encoded_alloc = 0;
 916         static char *encoded_msg = NULL;
 917
 918         if (msgnum < 0) {
 919                 if ((encoded_alloc == 0) && (encoded_msg != NULL)) {
 920                         free(encoded_msg);
 921                         encoded_alloc = 0;
 922                         encoded_msg = NULL;
 923                         // todo FreeStrBuf(&PlainMessageBuf); PlainMessageBuf = NULL;
 924                 }
 925                 return 0;
 926         }
 927
 928         if (PlainMessageBuf == NULL) {
 929                 PlainMessageBuf = NewStrBufPlain(NULL, 10*SIZ);
 930         }
 931
 932         /* Ok, here we go ... */
 933
 934         msg = CtdlFetchMessage(msgnum, 1);
 935         if (msg == NULL) {
 936                 return 1;
 937         }
 938
 939         GetMetaData(&smi, msgnum);
 940         smi.meta_msgnum = msgnum;
 941         smi.meta_refcount = refcount;
 942
 943         /* restore the content type from the message body: */
 944         mptr = bmstrcasestr(msg->cm_fields[eMesageText], "Content-type:");
 945         if (mptr != NULL) {
 946                 char *aptr;
 947                 safestrncpy(smi.meta_content_type, &mptr[13], sizeof smi.meta_content_type);
 948                 striplt(smi.meta_content_type);
 949                 aptr = smi.meta_content_type;
 950                 while (!IsEmptyStr(aptr)) {
 951                         if ((*aptr == ';')
 952                             || (*aptr == ' ')
 953                             || (*aptr == 13)
 954                             || (*aptr == 10)) {
 955                                 memset(aptr, 0, sizeof(smi.meta_content_type) - (aptr - smi.meta_content_type));
 956                         }
 957                         else aptr++;
 958                 }
 959         }
 960
 961         CC->redirect_buffer = PlainMessageBuf;
 962         CtdlOutputPreLoadedMsg(msg, MT_RFC822, HEADERS_ALL, 0, 1, QP_EADDR);
 963         smi.meta_rfc822_length = StrLength(CC->redirect_buffer);
 964         CC->redirect_buffer = NULL;
 965
 966         syslog(LOG_INFO,
 967                "migrate: setting message #%ld meta data to: refcount=%d, bodylength=%ld, content-type: %s",
 968                smi.meta_msgnum,
 969                smi.meta_refcount,
 970                smi.meta_rfc822_length,
 971                smi.meta_content_type
 972         );
 973
 974         PutMetaData(&smi);
 975         CM_Free(msg);
 976         return 0;
 977 }
 978
 979
 980 void migr_check_room_msg(long msgnum, void *userdata) {
 981         fprintf(migr_global_message_list, "%ld %s\n", msgnum, CC->room.QRname);
 982 }
 983
 984
 985 void migr_check_rooms_backend(struct ctdlroom *buf, void *data) {
 986         /* message list goes inside this tag */
 987         CtdlGetRoom(&CC->room, buf->QRname);
 988         CtdlForEachMessage(MSGS_ALL, 0L, NULL, NULL, NULL, migr_check_room_msg, NULL);
 989 }
 990
 991
 992 void RemoveMessagesFromRooms(StrBuf *RoomNameVec, long msgnum) {
 993         struct MetaData smi;
 994         const char *Pos = NULL;
 995         StrBuf *oneRoom = NewStrBuf();
 996
 997         syslog(LOG_INFO, "migrate: removing message pointer %ld from these rooms: %s", msgnum, ChrPtr(RoomNameVec));
 998
 999         while (Pos != StrBufNOTNULL){
1000                 StrBufExtract_NextToken(oneRoom, RoomNameVec, &Pos, '|');
1001                 CtdlDeleteMessages(ChrPtr(oneRoom), &msgnum, 1, "");
1002         };
1003         GetMetaData(&smi, msgnum);
1004         AdjRefCount(msgnum, -smi.meta_refcount);
1005 }
1006
1007
1008 void migr_do_restore_meta(void) {
1009         char buf[SIZ];
1010         int failGetMessage;
1011         long msgnum = 0;
1012         int lastnum = 0;
1013         int refcount = 0;
1014         CitContext *Ctx;
1015         char *prn;
1016         StrBuf *RoomNames;
1017         char cmd[SIZ];
1018
1019         migr_global_message_list = fopen(migr_tempfilename1, "w");
1020         if (migr_global_message_list != NULL) {
1021                 CtdlForEachRoom(migr_check_rooms_backend, NULL);
1022                 fclose(migr_global_message_list);
1023         }
1024
1025         /*
1026          * Process the 'global' message list.  (Sort it and remove dups.
1027          * Dups are ok because a message may be in more than one room, but
1028          * this will be handled by exporting the reference count, not by
1029          * exporting the message multiple times.)
1030          */
1031         snprintf(cmd, sizeof cmd, "sort -n <%s >%s", migr_tempfilename1, migr_tempfilename2);
1032         if (system(cmd) != 0) {
1033                 syslog(LOG_ERR, "migrate: error %d", errno);
1034         }
1035
1036         RoomNames = NewStrBuf();
1037         Ctx = CC;
1038         migr_global_message_list = fopen(migr_tempfilename2, "r");
1039         if (migr_global_message_list != NULL) {
1040                 syslog(LOG_INFO, "migrate: opened %s", migr_tempfilename1);
1041                 while ((Ctx->kill_me == 0) &&
1042                        (fgets(buf, sizeof(buf), migr_global_message_list) != NULL)) {
1043                         msgnum = atol(buf);
1044                         if (msgnum == 0L)
1045                                 continue;
1046                         if (lastnum == 0) {
1047                                 lastnum = msgnum;
1048                         }
1049                         prn = strchr(buf, ' ');
1050                         if (lastnum != msgnum) {
1051                                 failGetMessage = migr_restore_message_metadata(lastnum, refcount);
1052                                 if (failGetMessage) {
1053                                         RemoveMessagesFromRooms(RoomNames, lastnum);
1054                                 }
1055                                 refcount = 1;
1056                                 lastnum = msgnum;
1057                                 if (prn != NULL) {
1058                                         StrBufPlain(RoomNames, prn + 1, -1);
1059                                 }
1060                                 StrBufTrim(RoomNames);
1061                         }
1062                         else {
1063                                 if (prn != NULL) {
1064                                         if (StrLength(RoomNames) > 0) {
1065                                                 StrBufAppendBufPlain(RoomNames, HKEY("|"), 0);
1066                                         }
1067                                         StrBufAppendBufPlain(RoomNames, prn, -1, 1);
1068                                         StrBufTrim(RoomNames);
1069                                 }
1070                                 refcount ++;
1071                         }
1072                         lastnum = msgnum;
1073                 }
1074                 failGetMessage = migr_restore_message_metadata(msgnum, refcount);
1075                 if (failGetMessage) {
1076                         RemoveMessagesFromRooms(RoomNames, lastnum);
1077                 }
1078                 fclose(migr_global_message_list);
1079         }
1080
1081         migr_restore_message_metadata(-1L, -1); /* This frees the encoding buffer */
1082         cprintf("%d system analysis completed", CIT_OK);
1083         Ctx->kill_me = 1;
1084 }
1085
1086
1087 /******************************************************************************
1088  *                         Dispatcher, Common code                            *
1089  ******************************************************************************/
1090 void cmd_migr(char *cmdbuf) {
1091         char cmd[32];
1092
1093         if (CtdlAccessCheck(ac_internal)) return;
1094
1095         if (CtdlTrySingleUser()) {
1096                 CtdlDisableHouseKeeping();
1097                 CtdlMakeTempFileName(migr_tempfilename1, sizeof migr_tempfilename1);
1098                 CtdlMakeTempFileName(migr_tempfilename2, sizeof migr_tempfilename2);
1099
1100                 extract_token(cmd, cmdbuf, 0, '|', sizeof cmd);
1101                 if (!strcasecmp(cmd, "export")) {
1102                         migr_do_export();
1103                 }
1104                 else if (!strcasecmp(cmd, "import")) {
1105                         migr_do_import();
1106                 }
1107                 else if (!strcasecmp(cmd, "listdirs")) {
1108                         migr_do_listdirs();
1109                 }
1110                 else if (!strcasecmp(cmd, "restoremeta")) {
1111                         migr_do_restore_meta();
1112                 }
1113                 else {
1114                         cprintf("%d illegal command\n", ERROR + ILLEGAL_VALUE);
1115                 }
1116
1117                 unlink(migr_tempfilename1);
1118                 unlink(migr_tempfilename2);
1119
1120                 CtdlEnableHouseKeeping();
1121                 CtdlEndSingleUser();
1122         }
1123         else {
1124                 cprintf("%d The migrator is already running.\n", ERROR + RESOURCE_BUSY);
1125         }
1126 }
1127
1128
1129 /******************************************************************************
1130  *                              Module Hook                                  *
1131  ******************************************************************************/
1132
1133 CTDL_MODULE_INIT(migrate)
1134 {
1135         if (!threading)
1136         {
1137                 CtdlRegisterProtoHook(cmd_migr, "MIGR", "Across-the-wire migration");
1138         }
1139
1140         /* return our module name for the log */
1141         return "migrate";
1142 }