citadel/modules/migrate/serv_migrate.c

   1 /*
   2  * This module dumps and/or loads the Citadel database in XML format.
   3  *
   4  * Copyright (c) 1987-2020 by the citadel.org team
   5  *
   6  * This program is open source software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 3.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  */
  14
  15 /*
  16  * Explanation of <progress> tags:
  17  *
  18  * 0%              nothing
  19  * 2%              finished exporting configuration
  20  * 7%              finished exporting users
  21  * 12%             finished exporting openids
  22  * 17%             finished exporting rooms
  23  * 18%             finished exporting floors
  24  * 25%             finished exporting visits
  25  * 100%            finished exporting messages
  26  */
  27
  28 #include "sysdep.h"
  29 #include <stdlib.h>
  30 #include <unistd.h>
  31 #include <stdio.h>
  32 #include <fcntl.h>
  33 #include <signal.h>
  34 #include <pwd.h>
  35 #include <errno.h>
  36 #include <sys/types.h>
  37
  38 #if TIME_WITH_SYS_TIME
  39 # include <sys/time.h>
  40 # include <time.h>
  41 #else
  42 # if HAVE_SYS_TIME_H
  43 #  include <sys/time.h>
  44 # else
  45 #  include <time.h>
  46 # endif
  47 #endif
  48
  49 #include <sys/wait.h>
  50 #include <string.h>
  51 #include <ctype.h>
  52 #include <limits.h>
  53 #include <expat.h>
  54 #include <libcitadel.h>
  55 #include "citadel.h"
  56 #include "server.h"
  57 #include "citserver.h"
  58 #include "support.h"
  59 #include "config.h"
  60 #include "database.h"
  61 #include "msgbase.h"
  62 #include "user_ops.h"
  63 #include "euidindex.h"
  64 #include "ctdl_module.h"
  65
  66 #define END_OF_MESSAGE  "---eom---dbd---"
  67
  68 char migr_tempfilename1[PATH_MAX];
  69 char migr_tempfilename2[PATH_MAX];
  70 FILE *migr_global_message_list;
  71 int total_msgs = 0;
  72 char *ikey = NULL;                      // If we're importing a config key we store it here.
  73
  74
  75 /******************************************************************************
  76  *        Code which implements the export appears in this section            *
  77  ******************************************************************************/
  78
  79 /*
  80  * Output a string to the client with these characters escaped:  & < > " '
  81  */
  82 void xml_strout(char *str) {
  83
  84         char *c = str;
  85
  86         if (str == NULL) {
  87                 return;
  88         }
  89
  90         while (*c != 0) {
  91                 if (*c == '\"') {
  92                         client_write(HKEY("&quot;"));
  93                 }
  94                 else if (*c == '\'') {
  95                         client_write(HKEY("&apos;"));
  96                 }
  97                 else if (*c == '<') {
  98                         client_write(HKEY("&lt;"));
  99                 }
 100                 else if (*c == '>') {
 101                         client_write(HKEY("&gt;"));
 102                 }
 103                 else if (*c == '&') {
 104                         client_write(HKEY("&amp;"));
 105                 }
 106                 else {
 107                         client_write(c, 1);
 108                 }
 109                 ++c;
 110         }
 111 }
 112
 113
 114 /*
 115  * Export a user record as XML
 116  */
 117 void migr_export_users_backend(char *username, void *data) {
 118
 119         struct ctdluser u;
 120         if (CtdlGetUser(&u, username) != 0) {
 121                 return;
 122         }
 123
 124         client_write(HKEY("<user>\n"));
 125         cprintf("<u_version>%d</u_version>\n", u.version);
 126         cprintf("<u_uid>%ld</u_uid>\n", (long)u.uid);
 127         client_write(HKEY("<u_password>"));     xml_strout(u.password);         client_write(HKEY("</u_password>\n"));
 128         cprintf("<u_flags>%u</u_flags>\n", u.flags);
 129         cprintf("<u_timescalled>%ld</u_timescalled>\n", u.timescalled);
 130         cprintf("<u_posted>%ld</u_posted>\n", u.posted);
 131         cprintf("<u_axlevel>%d</u_axlevel>\n", u.axlevel);
 132         cprintf("<u_usernum>%ld</u_usernum>\n", u.usernum);
 133         cprintf("<u_lastcall>%ld</u_lastcall>\n", (long)u.lastcall);
 134         cprintf("<u_USuserpurge>%d</u_USuserpurge>\n", u.USuserpurge);
 135         client_write(HKEY("<u_fullname>"));     xml_strout(u.fullname);         client_write(HKEY("</u_fullname>\n"));
 136         cprintf("<u_msgnum_bio>%ld</u_msgnum_bio>\n", u.msgnum_bio);
 137         cprintf("<u_msgnum_pic>%ld</u_msgnum_pic>\n", u.msgnum_pic);
 138         cprintf("<u_emailaddrs>%s</u_emailaddrs>\n", u.emailaddrs);
 139         cprintf("<u_msgnum_inboxrules>%ld</u_msgnum_inboxrules>\n", u.msgnum_inboxrules);
 140         cprintf("<u_lastproc_inboxrules>%ld</u_lastproc_inboxrules>\n", u.lastproc_inboxrules);
 141         client_write(HKEY("</user>\n"));
 142 }
 143
 144
 145 void migr_export_users(void) {
 146         ForEachUser(migr_export_users_backend, NULL);
 147 }
 148
 149
 150 void migr_export_room_msg(long msgnum, void *userdata) {
 151         cprintf("%ld\n", msgnum);
 152         fprintf(migr_global_message_list, "%ld\n", msgnum);
 153 }
 154
 155
 156 void migr_export_rooms_backend(struct ctdlroom *buf, void *data) {
 157         client_write(HKEY("<room>\n"));
 158         client_write(HKEY("<QRname>")); xml_strout(buf->QRname);        client_write(HKEY("</QRname>\n"));
 159         client_write(HKEY("<QRpasswd>"));       xml_strout(buf->QRpasswd);      client_write(HKEY("</QRpasswd>\n"));
 160         cprintf("<QRroomaide>%ld</QRroomaide>\n", buf->QRroomaide);
 161         cprintf("<QRhighest>%ld</QRhighest>\n", buf->QRhighest);
 162         cprintf("<QRgen>%ld</QRgen>\n", (long)buf->QRgen);
 163         cprintf("<QRflags>%u</QRflags>\n", buf->QRflags);
 164         if (buf->QRflags & QR_DIRECTORY) {
 165                 client_write(HKEY("<QRdirname>"));
 166                 xml_strout(buf->QRdirname);
 167                 client_write(HKEY("</QRdirname>\n"));
 168         }
 169         cprintf("<QRfloor>%d</QRfloor>\n", buf->QRfloor);
 170         cprintf("<QRmtime>%ld</QRmtime>\n", (long)buf->QRmtime);
 171         cprintf("<QRexpire_mode>%d</QRexpire_mode>\n", buf->QRep.expire_mode);
 172         cprintf("<QRexpire_value>%d</QRexpire_value>\n", buf->QRep.expire_value);
 173         cprintf("<QRnumber>%ld</QRnumber>\n", buf->QRnumber);
 174         cprintf("<QRorder>%d</QRorder>\n", buf->QRorder);
 175         cprintf("<QRflags2>%u</QRflags2>\n", buf->QRflags2);
 176         cprintf("<QRdefaultview>%d</QRdefaultview>\n", buf->QRdefaultview);
 177         cprintf("<msgnum_info>%ld</msgnum_info>\n", buf->msgnum_info);
 178         cprintf("<msgnum_pic>%ld</msgnum_pic>\n", buf->msgnum_pic);
 179         client_write(HKEY("</room>\n"));
 180
 181         /* message list goes inside this tag */
 182
 183         CtdlGetRoom(&CC->room, buf->QRname);
 184         client_write(HKEY("<room_messages>"));
 185         client_write(HKEY("<FRname>")); xml_strout(CC->room.QRname);    client_write(HKEY("</FRname>\n"));
 186         client_write(HKEY("<FRmsglist>"));
 187         CtdlForEachMessage(MSGS_ALL, 0L, NULL, NULL, NULL, migr_export_room_msg, NULL);
 188         client_write(HKEY("</FRmsglist>\n"));
 189         client_write(HKEY("</room_messages>\n"));
 190
 191
 192 }
 193
 194
 195 void migr_export_rooms(void) {
 196         char cmd[SIZ];
 197         migr_global_message_list = fopen(migr_tempfilename1, "w");
 198         if (migr_global_message_list != NULL) {
 199                 CtdlForEachRoom(migr_export_rooms_backend, NULL);
 200                 fclose(migr_global_message_list);
 201         }
 202
 203         /*
 204          * Process the 'global' message list.  (Sort it and remove dups.
 205          * Dups are ok because a message may be in more than one room, but
 206          * this will be handled by exporting the reference count, not by
 207          * exporting the message multiple times.)
 208          */
 209         snprintf(cmd, sizeof cmd, "sort -n <%s >%s", migr_tempfilename1, migr_tempfilename2);
 210         if (system(cmd) != 0) syslog(LOG_ALERT, "Error %d", errno);
 211         snprintf(cmd, sizeof cmd, "uniq <%s >%s", migr_tempfilename2, migr_tempfilename1);
 212         if (system(cmd) != 0) syslog(LOG_ALERT, "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, "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, "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, "Exported %d messages.", count);
 444         }
 445         else {
 446                 syslog(LOG_ERR, "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         client_write(HKEY("</citadel_migrate_data>\n"));
 481         cprintf("<progress>%d</progress>\n", 100);
 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 {
 515         StrBufAppendBufPlain(migr_chardata, s, len, 0);
 516 }
 517
 518
 519 void migr_xml_start(void *data, const char *el, const char **attr) {
 520         int i;
 521
 522         /*** GENERAL STUFF ***/
 523
 524         /* Reset chardata_len to zero and init buffer */
 525         FlushStrBuf(migr_chardata);
 526         FlushStrBuf(migr_MsgData);
 527
 528         if (!strcasecmp(el, "citadel_migrate_data")) {
 529                 ++citadel_migrate_data;
 530
 531                 /* As soon as it looks like the input data is a genuine Citadel XML export,
 532                  * whack the existing database on disk to make room for the new one.
 533                  */
 534                 if (citadel_migrate_data == 1) {
 535                         for (i = 0; i < MAXCDB; ++i) {
 536                                 cdb_trunc(i);
 537                         }
 538                 }
 539                 return;
 540         }
 541
 542         if (citadel_migrate_data != 1) {
 543                 syslog(LOG_ALERT, "Out-of-sequence tag <%s> detected.  Warning: ODD-DATA!", el);
 544                 return;
 545         }
 546
 547         /* When we begin receiving XML for one of these record types, clear out the associated
 548          * buffer so we don't accidentally carry over any data from a previous record.
 549          */
 550         if (!strcasecmp(el, "user"))                    memset(&usbuf, 0, sizeof (struct ctdluser));
 551         else if (!strcasecmp(el, "openid"))             memset(openid_url, 0, sizeof openid_url);
 552         else if (!strcasecmp(el, "room"))               memset(&qrbuf, 0, sizeof (struct ctdlroom));
 553         else if (!strcasecmp(el, "room_messages"))      memset(FRname, 0, sizeof FRname);
 554         else if (!strcasecmp(el, "floor"))              memset(&flbuf, 0, sizeof (struct floor));
 555         else if (!strcasecmp(el, "visit"))              memset(&vbuf, 0, sizeof (visit));
 556
 557         else if (!strcasecmp(el, "message")) {
 558                 memset(&smi, 0, sizeof (struct MetaData));
 559                 import_msgnum = 0;
 560         }
 561         else if (!strcasecmp(el, "config")) {
 562                 if (ikey != NULL) {
 563                         free(ikey);
 564                         ikey = NULL;
 565                 }
 566                 while (*attr) {
 567                         if (!strcasecmp(attr[0], "key")) {
 568                                 ikey = strdup(attr[1]);
 569                         }
 570                         attr += 2;
 571                 }
 572         }
 573
 574 }
 575
 576
 577 int migr_userrecord(void *data, const char *el)
 578 {
 579         if (!strcasecmp(el, "u_version"))                       usbuf.version = atoi(ChrPtr(migr_chardata));
 580         else if (!strcasecmp(el, "u_uid"))                      usbuf.uid = atol(ChrPtr(migr_chardata));
 581         else if (!strcasecmp(el, "u_password"))                 safestrncpy(usbuf.password, ChrPtr(migr_chardata), sizeof usbuf.password);
 582         else if (!strcasecmp(el, "u_flags"))                    usbuf.flags = atoi(ChrPtr(migr_chardata));
 583         else if (!strcasecmp(el, "u_timescalled"))              usbuf.timescalled = atol(ChrPtr(migr_chardata));
 584         else if (!strcasecmp(el, "u_posted"))                   usbuf.posted = atol(ChrPtr(migr_chardata));
 585         else if (!strcasecmp(el, "u_axlevel"))                  usbuf.axlevel = atoi(ChrPtr(migr_chardata));
 586         else if (!strcasecmp(el, "u_usernum"))                  usbuf.usernum = atol(ChrPtr(migr_chardata));
 587         else if (!strcasecmp(el, "u_lastcall"))                 usbuf.lastcall = atol(ChrPtr(migr_chardata));
 588         else if (!strcasecmp(el, "u_USuserpurge"))              usbuf.USuserpurge = atoi(ChrPtr(migr_chardata));
 589         else if (!strcasecmp(el, "u_fullname"))                 safestrncpy(usbuf.fullname, ChrPtr(migr_chardata), sizeof usbuf.fullname);
 590         else if (!strcasecmp(el, "u_msgnum_bio"))               usbuf.msgnum_bio = atol(ChrPtr(migr_chardata));
 591         else if (!strcasecmp(el, "u_msgnum_pic"))               usbuf.msgnum_pic = atol(ChrPtr(migr_chardata));
 592         else if (!strcasecmp(el, "u_emailaddrs"))               safestrncpy(usbuf.emailaddrs, ChrPtr(migr_chardata), sizeof usbuf.emailaddrs);
 593         else if (!strcasecmp(el, "u_msgnum_inboxrules"))        usbuf.msgnum_inboxrules = atol(ChrPtr(migr_chardata));
 594         else if (!strcasecmp(el, "u_lastproc_inboxrules"))      usbuf.lastproc_inboxrules = atol(ChrPtr(migr_chardata));
 595         else return 0;
 596         return 1;
 597 }
 598
 599
 600 int migr_roomrecord(void *data, const char *el)
 601 {
 602         if (!strcasecmp(el, "QRname"))                          safestrncpy(qrbuf.QRname, ChrPtr(migr_chardata), sizeof qrbuf.QRname);
 603         else if (!strcasecmp(el, "QRpasswd"))                   safestrncpy(qrbuf.QRpasswd, ChrPtr(migr_chardata), sizeof qrbuf.QRpasswd);
 604         else if (!strcasecmp(el, "QRroomaide"))                 qrbuf.QRroomaide = atol(ChrPtr(migr_chardata));
 605         else if (!strcasecmp(el, "QRhighest"))                  qrbuf.QRhighest = atol(ChrPtr(migr_chardata));
 606         else if (!strcasecmp(el, "QRgen"))                      qrbuf.QRgen = atol(ChrPtr(migr_chardata));
 607         else if (!strcasecmp(el, "QRflags"))                    qrbuf.QRflags = atoi(ChrPtr(migr_chardata));
 608         else if (!strcasecmp(el, "QRdirname"))                  safestrncpy(qrbuf.QRdirname, ChrPtr(migr_chardata), sizeof qrbuf.QRdirname);
 609         else if (!strcasecmp(el, "QRfloor"))                    qrbuf.QRfloor = atoi(ChrPtr(migr_chardata));
 610         else if (!strcasecmp(el, "QRmtime"))                    qrbuf.QRmtime = atol(ChrPtr(migr_chardata));
 611         else if (!strcasecmp(el, "QRexpire_mode"))              qrbuf.QRep.expire_mode = atoi(ChrPtr(migr_chardata));
 612         else if (!strcasecmp(el, "QRexpire_value"))             qrbuf.QRep.expire_value = atoi(ChrPtr(migr_chardata));
 613         else if (!strcasecmp(el, "QRnumber"))                   qrbuf.QRnumber = atol(ChrPtr(migr_chardata));
 614         else if (!strcasecmp(el, "QRorder"))                    qrbuf.QRorder = atoi(ChrPtr(migr_chardata));
 615         else if (!strcasecmp(el, "QRflags2"))                   qrbuf.QRflags2 = atoi(ChrPtr(migr_chardata));
 616         else if (!strcasecmp(el, "QRdefaultview"))              qrbuf.QRdefaultview = atoi(ChrPtr(migr_chardata));
 617         else if (!strcasecmp(el, "msgnum_info"))                qrbuf.msgnum_info = atol(ChrPtr(migr_chardata));
 618         else if (!strcasecmp(el, "msgnum_pic"))                 qrbuf.msgnum_pic = atol(ChrPtr(migr_chardata));
 619         else return 0;
 620         return 1;
 621 }
 622
 623
 624 int migr_floorrecord(void *data, const char *el)
 625 {
 626         if (!strcasecmp(el, "f_num"))                           floornum = atoi(ChrPtr(migr_chardata));
 627         else if (!strcasecmp(el, "f_flags"))                    flbuf.f_flags = atoi(ChrPtr(migr_chardata));
 628         else if (!strcasecmp(el, "f_name"))                     safestrncpy(flbuf.f_name, ChrPtr(migr_chardata), sizeof flbuf.f_name);
 629         else if (!strcasecmp(el, "f_ref_count"))                flbuf.f_ref_count = atoi(ChrPtr(migr_chardata));
 630         else if (!strcasecmp(el, "f_ep_expire_mode"))           flbuf.f_ep.expire_mode = atoi(ChrPtr(migr_chardata));
 631         else if (!strcasecmp(el, "f_ep_expire_value"))          flbuf.f_ep.expire_value = atoi(ChrPtr(migr_chardata));
 632         else return 0;
 633         return 1;
 634 }
 635
 636
 637 int migr_visitrecord(void *data, const char *el)
 638 {
 639         if (!strcasecmp(el, "v_roomnum"))                       vbuf.v_roomnum = atol(ChrPtr(migr_chardata));
 640         else if (!strcasecmp(el, "v_roomgen"))                  vbuf.v_roomgen = atol(ChrPtr(migr_chardata));
 641         else if (!strcasecmp(el, "v_usernum"))                  vbuf.v_usernum = atol(ChrPtr(migr_chardata));
 642
 643         else if (!strcasecmp(el, "v_seen")) {
 644                 int is_textual_seen = 0;
 645                 int i;
 646                 int max = StrLength(migr_chardata);
 647
 648                 vbuf.v_lastseen = atol(ChrPtr(migr_chardata));
 649                 is_textual_seen = 0;
 650                 for (i=0; i < max; ++i)
 651                         if (!isdigit(ChrPtr(migr_chardata)[i]))
 652                                 is_textual_seen = 1;
 653                 if (is_textual_seen)
 654                         safestrncpy(vbuf.v_seen, ChrPtr(migr_chardata), sizeof vbuf.v_seen);
 655         }
 656
 657         else if (!strcasecmp(el, "v_answered"))                 safestrncpy(vbuf.v_answered, ChrPtr(migr_chardata), sizeof vbuf.v_answered);
 658         else if (!strcasecmp(el, "v_flags"))                    vbuf.v_flags = atoi(ChrPtr(migr_chardata));
 659         else if (!strcasecmp(el, "v_view"))                     vbuf.v_view = atoi(ChrPtr(migr_chardata));
 660         else return 0;
 661         return 1;
 662 }
 663
 664
 665 void migr_xml_end(void *data, const char *el)
 666 {
 667         const char *ptr;
 668         int msgcount = 0;
 669         long msgnum = 0L;
 670         long *msglist = NULL;
 671         int msglist_alloc = 0;
 672         /*** GENERAL STUFF ***/
 673
 674         if (!strcasecmp(el, "citadel_migrate_data")) {
 675                 --citadel_migrate_data;
 676                 return;
 677         }
 678
 679         if (citadel_migrate_data != 1) {
 680                 syslog(LOG_ALERT, "Out-of-sequence tag <%s> detected.  Warning: ODD-DATA!", el);
 681                 return;
 682         }
 683
 684         // syslog(LOG_DEBUG, "END TAG: <%s> DATA: <%s>\n", el, (migr_chardata_len ? migr_chardata : ""));
 685
 686         /*** CONFIG ***/
 687
 688         if (!strcasecmp(el, "config"))
 689         {
 690                 syslog(LOG_DEBUG, "Imported config key=%s", ikey);
 691
 692                 if (ikey != NULL) {
 693                         CtdlSetConfigStr(ikey, (char *)ChrPtr(migr_chardata));
 694                         free(ikey);
 695                         ikey = NULL;
 696                 }
 697                 else {
 698                         syslog(LOG_INFO, "Closed a <config> tag but no key name was supplied.");
 699                 }
 700         }
 701
 702         /*** USER ***/
 703         else if ((!strncasecmp(el, HKEY("u_"))) &&
 704                  migr_userrecord(data, el))
 705                 ; /* Nothing to do anymore */
 706         else if (!strcasecmp(el, "user")) {
 707                 CtdlPutUser(&usbuf);
 708                 syslog(LOG_INFO, "Imported user: %s", usbuf.fullname);
 709         }
 710
 711         /*** OPENID ***/
 712
 713         else if (!strcasecmp(el, "oid_url"))                    safestrncpy(openid_url, ChrPtr(migr_chardata), sizeof openid_url);
 714         else if (!strcasecmp(el, "oid_usernum"))                openid_usernum = atol(ChrPtr(migr_chardata));
 715
 716         else if (!strcasecmp(el, "openid")) {                   /* see serv_openid_rp.c for a description of the record format */
 717                 char *oid_data;
 718                 int oid_data_len;
 719                 oid_data_len = sizeof(long) + strlen(openid_url) + 1;
 720                 oid_data = malloc(oid_data_len);
 721                 memcpy(oid_data, &openid_usernum, sizeof(long));
 722                 memcpy(&oid_data[sizeof(long)], openid_url, strlen(openid_url) + 1);
 723                 cdb_store(CDB_EXTAUTH, openid_url, strlen(openid_url), oid_data, oid_data_len);
 724                 free(oid_data);
 725                 syslog(LOG_INFO, "Imported OpenID: %s (%ld)", openid_url, openid_usernum);
 726         }
 727
 728         /*** ROOM ***/
 729         else if ((!strncasecmp(el, HKEY("QR"))) &&
 730                  migr_roomrecord(data, el))
 731                 ; /* Nothing to do anymore */
 732         else if (!strcasecmp(el, "room")) {
 733                 CtdlPutRoom(&qrbuf);
 734                 syslog(LOG_INFO, "Imported room: %s", qrbuf.QRname);
 735         }
 736
 737         /*** ROOM MESSAGE POINTERS ***/
 738
 739         else if (!strcasecmp(el, "FRname"))                     safestrncpy(FRname, ChrPtr(migr_chardata), sizeof FRname);
 740
 741         else if (!strcasecmp(el, "FRmsglist")) {
 742                 if (!IsEmptyStr(FRname)) {
 743                         msgcount = 0;
 744                         msglist_alloc = 1000;
 745                         msglist = malloc(sizeof(long) * msglist_alloc);
 746
 747                         syslog(LOG_DEBUG, "Message list for: %s", FRname);
 748
 749                         ptr = ChrPtr(migr_chardata);
 750                         while (*ptr != 0) {
 751                                 while ((*ptr != 0) && (!isdigit(*ptr))) {
 752                                         ++ptr;
 753                                 }
 754                                 if ((*ptr != 0) && (isdigit(*ptr))) {
 755                                         msgnum = atol(ptr);
 756                                         if (msgnum > 0L) {
 757                                                 if (msgcount >= msglist_alloc) {
 758                                                         msglist_alloc *= 2;
 759                                                         msglist = realloc(msglist, sizeof(long) * msglist_alloc);
 760                                                 }
 761                                                 msglist[msgcount++] = msgnum;
 762                                                 }
 763                                         }
 764                                         while ((*ptr != 0) && (isdigit(*ptr))) {
 765                                                 ++ptr;
 766                                         }
 767                                 }
 768                         }
 769                         if (msgcount > 0) {
 770                                 CtdlSaveMsgPointersInRoom(FRname, msglist, msgcount, 0, NULL, 1);
 771                         }
 772                         free(msglist);
 773                         msglist = NULL;
 774                         msglist_alloc = 0;
 775                         syslog(LOG_DEBUG, "Imported %d messages.", msgcount);
 776                         if (server_shutting_down) {
 777                                 return;
 778                 }
 779         }
 780
 781         /*** FLOORS ***/
 782         else if ((!strncasecmp(el, HKEY("f_"))) &&
 783                  migr_floorrecord(data, el))
 784                 ; /* Nothing to do anymore */
 785
 786         else if (!strcasecmp(el, "floor")) {
 787                 CtdlPutFloor(&flbuf, floornum);
 788                 syslog(LOG_INFO, "Imported floor #%d (%s)", floornum, flbuf.f_name);
 789         }
 790
 791         /*** VISITS ***/
 792         else if ((!strncasecmp(el, HKEY("v_"))) && migr_visitrecord(data, el)) {
 793                 ; /* Nothing to do anymore */
 794         }
 795         else if (!strcasecmp(el, "visit")) {
 796                 put_visit(&vbuf);
 797                 syslog(LOG_INFO, "Imported visit: %ld/%ld/%ld", vbuf.v_roomnum, vbuf.v_roomgen, vbuf.v_usernum);
 798         }
 799
 800         /*** MESSAGES ***/
 801
 802         else if (!strcasecmp(el, "msg_msgnum"))                 smi.meta_msgnum = import_msgnum = atol(ChrPtr(migr_chardata));
 803         else if (!strcasecmp(el, "msg_meta_refcount"))          smi.meta_refcount = atoi(ChrPtr(migr_chardata));
 804         else if (!strcasecmp(el, "msg_meta_rfc822_length"))     smi.meta_rfc822_length = atoi(ChrPtr(migr_chardata));
 805         else if (!strcasecmp(el, "msg_meta_content_type"))      safestrncpy(smi.meta_content_type, ChrPtr(migr_chardata), sizeof smi.meta_content_type);
 806
 807         else if (!strcasecmp(el, "msg_text"))
 808         {
 809                 long rc;
 810                 struct CtdlMessage *msg;
 811
 812                 FlushStrBuf(migr_MsgData);
 813                 StrBufDecodeBase64To(migr_chardata, migr_MsgData);
 814
 815                 msg = CtdlDeserializeMessage(import_msgnum, -1,
 816                                              ChrPtr(migr_MsgData),
 817                                              StrLength(migr_MsgData));
 818                 if (msg != NULL) {
 819                         rc = CtdlSaveThisMessage(msg, import_msgnum, 0);
 820                         if (rc == 0) {
 821                                 PutMetaData(&smi);
 822                         }
 823                         CM_Free(msg);
 824                 }
 825                 else {
 826                         rc = -1;
 827                 }
 828
 829                 syslog(LOG_INFO,
 830                        "%s message #%ld, size=%d, refcount=%d, bodylength=%ld, content-type: %s",
 831                        (rc!= 0)?"failed to import ":"Imported ",
 832                        import_msgnum,
 833                        StrLength(migr_MsgData),
 834                        smi.meta_refcount,
 835                        smi.meta_rfc822_length,
 836                        smi.meta_content_type
 837                 );
 838                 memset(&smi, 0, sizeof(smi));
 839         }
 840
 841         /*** MORE GENERAL STUFF ***/
 842
 843         FlushStrBuf(migr_chardata);
 844 }
 845
 846
 847 /*
 848  * Import begins here
 849  */
 850 void migr_do_import(void) {
 851         StrBuf *Buf;
 852         XML_Parser xp;
 853         int Finished = 0;
 854
 855         unbuffer_output();
 856         migr_chardata = NewStrBufPlain(NULL, SIZ * 20);
 857         migr_MsgData = NewStrBufPlain(NULL, SIZ * 20);
 858         Buf = NewStrBufPlain(NULL, SIZ);
 859         xp = XML_ParserCreate(NULL);
 860         if (!xp) {
 861                 cprintf("%d Failed to create XML parser instance\n", ERROR+INTERNAL_ERROR);
 862                 return;
 863         }
 864         XML_SetElementHandler(xp, migr_xml_start, migr_xml_end);
 865         XML_SetCharacterDataHandler(xp, migr_xml_chardata);
 866
 867         CC->dont_term = 1;
 868
 869         cprintf("%d sock it to me\n", SEND_LISTING);
 870         unbuffer_output();
 871
 872         client_set_inbound_buf(SIZ * 10);
 873
 874         while (!Finished && client_read_random_blob(Buf, -1) >= 0) {
 875                 if ((StrLength(Buf) > 4) && !strcmp(ChrPtr(Buf) + StrLength(Buf) - 4, "000\n")) {
 876                         Finished = 1;
 877                         StrBufCutAt(Buf, StrLength(Buf) - 4, NULL);
 878                 }
 879                 if (server_shutting_down)
 880                         break;  // Should we break or return?
 881
 882                 if (StrLength(Buf) == 0)
 883                         continue;
 884
 885                 XML_Parse(xp, ChrPtr(Buf), StrLength(Buf), 0);
 886                 FlushStrBuf(Buf);
 887         }
 888
 889         XML_Parse(xp, "", 0, 1);
 890         XML_ParserFree(xp);
 891         FreeStrBuf(&Buf);
 892         FreeStrBuf(&migr_chardata);
 893         FreeStrBuf(&migr_MsgData);
 894         rebuild_euid_index();
 895         rebuild_usersbynumber();
 896         CtdlSetConfigInt("MM_fulltext_wordbreaker", -1);        // Set an invalid wordbreaker to force re-indexing
 897         CC->dont_term = 0;
 898 }
 899
 900
 901 /******************************************************************************
 902  *                         Dispatcher, Common code                            *
 903  ******************************************************************************/
 904 /*
 905  * Dump out the pathnames of directories which can be copied "as is"
 906  */
 907 void migr_do_listdirs(void) {
 908         cprintf("%d Don't forget these:\n", LISTING_FOLLOWS);
 909         cprintf("files|%s\n",           ctdl_file_dir);
 910         cprintf("messages|%s\n",        ctdl_message_dir);
 911         cprintf("keys|%s\n",            ctdl_key_dir);
 912         cprintf("000\n");
 913 }
 914
 915
 916 /******************************************************************************
 917  *                    Repair database integrity                               *
 918  ******************************************************************************/
 919
 920 StrBuf *PlainMessageBuf = NULL;
 921 HashList *UsedMessageIDS = NULL;
 922
 923 int migr_restore_message_metadata(long msgnum, int refcount)
 924 {
 925         CitContext *CCC = MyContext();
 926         struct MetaData smi;
 927         struct CtdlMessage *msg;
 928         char *mptr = NULL;
 929
 930         /* We can use a static buffer here because there will never be more than
 931          * one of this operation happening at any given time, and it's really best
 932          * to just keep it allocated once instead of torturing malloc/free.
 933          * Call this function with msgnum "-1" to free the buffer when finished.
 934          */
 935         static int encoded_alloc = 0;
 936         static char *encoded_msg = NULL;
 937
 938         if (msgnum < 0) {
 939                 if ((encoded_alloc == 0) && (encoded_msg != NULL)) {
 940                         free(encoded_msg);
 941                         encoded_alloc = 0;
 942                         encoded_msg = NULL;
 943                         // todo FreeStrBuf(&PlainMessageBuf); PlainMessageBuf = NULL;
 944                 }
 945                 return 0;
 946         }
 947
 948         if (PlainMessageBuf == NULL) {
 949                 PlainMessageBuf = NewStrBufPlain(NULL, 10*SIZ);
 950         }
 951
 952         /* Ok, here we go ... */
 953
 954         msg = CtdlFetchMessage(msgnum, 1);
 955         if (msg == NULL) {
 956                 return 1;
 957         }
 958
 959         GetMetaData(&smi, msgnum);
 960         smi.meta_msgnum = msgnum;
 961         smi.meta_refcount = refcount;
 962
 963         /* restore the content type from the message body: */
 964         mptr = bmstrcasestr(msg->cm_fields[eMesageText], "Content-type:");
 965         if (mptr != NULL) {
 966                 char *aptr;
 967                 safestrncpy(smi.meta_content_type, &mptr[13], sizeof smi.meta_content_type);
 968                 striplt(smi.meta_content_type);
 969                 aptr = smi.meta_content_type;
 970                 while (!IsEmptyStr(aptr)) {
 971                         if ((*aptr == ';')
 972                             || (*aptr == ' ')
 973                             || (*aptr == 13)
 974                             || (*aptr == 10)) {
 975                                 memset(aptr, 0, sizeof(smi.meta_content_type) - (aptr - smi.meta_content_type));
 976                         }
 977                         else aptr++;
 978                 }
 979         }
 980
 981         CCC->redirect_buffer = PlainMessageBuf;
 982         CtdlOutputPreLoadedMsg(msg, MT_RFC822, HEADERS_ALL, 0, 1, QP_EADDR);
 983         smi.meta_rfc822_length = StrLength(CCC->redirect_buffer);
 984         CCC->redirect_buffer = NULL;
 985
 986         syslog(LOG_INFO,
 987                "Setting message #%ld meta data to: refcount=%d, bodylength=%ld, content-type: %s",
 988                smi.meta_msgnum,
 989                smi.meta_refcount,
 990                smi.meta_rfc822_length,
 991                smi.meta_content_type
 992         );
 993
 994         PutMetaData(&smi);
 995
 996         CM_Free(msg);
 997
 998         return 0;
 999 }
1000
1001
1002 void migr_check_room_msg(long msgnum, void *userdata) {
1003         fprintf(migr_global_message_list, "%ld %s\n", msgnum, CC->room.QRname);
1004 }
1005
1006
1007 void migr_check_rooms_backend(struct ctdlroom *buf, void *data) {
1008
1009         /* message list goes inside this tag */
1010
1011         CtdlGetRoom(&CC->room, buf->QRname);
1012         CtdlForEachMessage(MSGS_ALL, 0L, NULL, NULL, NULL, migr_check_room_msg, NULL);
1013 }
1014
1015
1016 void RemoveMessagesFromRooms(StrBuf *RoomNameVec, long msgnum) {
1017         struct MetaData smi;
1018         const char *Pos = NULL;
1019         StrBuf *oneRoom = NewStrBuf();
1020
1021         syslog(LOG_INFO, "removing message pointer %ld from these rooms: %s", msgnum, ChrPtr(RoomNameVec));
1022
1023         while (Pos != StrBufNOTNULL){
1024                 StrBufExtract_NextToken(oneRoom, RoomNameVec, &Pos, '|');
1025                 CtdlDeleteMessages(ChrPtr(oneRoom), &msgnum, 1, "");
1026         };
1027         GetMetaData(&smi, msgnum);
1028         AdjRefCount(msgnum, -smi.meta_refcount);
1029 }
1030
1031
1032 void migr_do_restore_meta(void) {
1033         char buf[SIZ];
1034         int failGetMessage;
1035         long msgnum = 0;
1036         int lastnum = 0;
1037         int refcount = 0;
1038         CitContext *Ctx;
1039         char *prn;
1040         StrBuf *RoomNames;
1041         char cmd[SIZ];
1042
1043         migr_global_message_list = fopen(migr_tempfilename1, "w");
1044         if (migr_global_message_list != NULL) {
1045                 CtdlForEachRoom(migr_check_rooms_backend, NULL);
1046                 fclose(migr_global_message_list);
1047         }
1048
1049         /*
1050          * Process the 'global' message list.  (Sort it and remove dups.
1051          * Dups are ok because a message may be in more than one room, but
1052          * this will be handled by exporting the reference count, not by
1053          * exporting the message multiple times.)
1054          */
1055         snprintf(cmd, sizeof cmd, "sort -n <%s >%s", migr_tempfilename1, migr_tempfilename2);
1056         if (system(cmd) != 0) syslog(LOG_ALERT, "Error %d", errno);
1057
1058         RoomNames = NewStrBuf();
1059         Ctx = CC;
1060         migr_global_message_list = fopen(migr_tempfilename2, "r");
1061         if (migr_global_message_list != NULL) {
1062                 syslog(LOG_INFO, "Opened %s", migr_tempfilename1);
1063                 while ((Ctx->kill_me == 0) &&
1064                        (fgets(buf, sizeof(buf), migr_global_message_list) != NULL)) {
1065                         msgnum = atol(buf);
1066                         if (msgnum == 0L)
1067                                 continue;
1068                         if (lastnum == 0) {
1069                                 lastnum = msgnum;
1070                         }
1071                         prn = strchr(buf, ' ');
1072                         if (lastnum != msgnum) {
1073                                 failGetMessage = migr_restore_message_metadata(lastnum, refcount);
1074                                 if (failGetMessage) {
1075                                         RemoveMessagesFromRooms(RoomNames, lastnum);
1076                                 }
1077                                 refcount = 1;
1078                                 lastnum = msgnum;
1079                                 if (prn != NULL) {
1080                                         StrBufPlain(RoomNames, prn + 1, -1);
1081                                 }
1082                                 StrBufTrim(RoomNames);
1083                         }
1084                         else {
1085                                 if (prn != NULL) {
1086                                         if (StrLength(RoomNames) > 0) {
1087                                                 StrBufAppendBufPlain(RoomNames, HKEY("|"), 0);
1088                                         }
1089                                         StrBufAppendBufPlain(RoomNames, prn, -1, 1);
1090                                         StrBufTrim(RoomNames);
1091                                 }
1092                                 refcount ++;
1093                         }
1094                         lastnum = msgnum;
1095                 }
1096                 failGetMessage = migr_restore_message_metadata(msgnum, refcount);
1097                 if (failGetMessage) {
1098                         RemoveMessagesFromRooms(RoomNames, lastnum);
1099                 }
1100                 fclose(migr_global_message_list);
1101         }
1102
1103         migr_restore_message_metadata(-1L, -1); /* This frees the encoding buffer */
1104         cprintf("%d system analysis completed", CIT_OK);
1105         Ctx->kill_me = 1;
1106 }
1107
1108
1109 /******************************************************************************
1110  *                         Dispatcher, Common code                            *
1111  ******************************************************************************/
1112 void cmd_migr(char *cmdbuf) {
1113         char cmd[32];
1114
1115         if (CtdlAccessCheck(ac_internal)) return;
1116
1117         if (CtdlTrySingleUser()) {
1118                 CtdlDisableHouseKeeping();
1119                 CtdlMakeTempFileName(migr_tempfilename1, sizeof migr_tempfilename1);
1120                 CtdlMakeTempFileName(migr_tempfilename2, sizeof migr_tempfilename2);
1121
1122                 extract_token(cmd, cmdbuf, 0, '|', sizeof cmd);
1123                 if (!strcasecmp(cmd, "export")) {
1124                         migr_do_export();
1125                 }
1126                 else if (!strcasecmp(cmd, "import")) {
1127                         migr_do_import();
1128                 }
1129                 else if (!strcasecmp(cmd, "listdirs")) {
1130                         migr_do_listdirs();
1131                 }
1132                 else if (!strcasecmp(cmd, "restoremeta")) {
1133                         migr_do_restore_meta();
1134                 }
1135                 else {
1136                         cprintf("%d illegal command\n", ERROR + ILLEGAL_VALUE);
1137                 }
1138
1139                 unlink(migr_tempfilename1);
1140                 unlink(migr_tempfilename2);
1141
1142                 CtdlEnableHouseKeeping();
1143                 CtdlEndSingleUser();
1144         }
1145         else {
1146                 cprintf("%d The migrator is already running.\n", ERROR + RESOURCE_BUSY);
1147         }
1148 }
1149
1150
1151 /******************************************************************************
1152  *                              Module Hook                                  *
1153  ******************************************************************************/
1154
1155 CTDL_MODULE_INIT(migrate)
1156 {
1157         if (!threading)
1158         {
1159                 CtdlRegisterProtoHook(cmd_migr, "MIGR", "Across-the-wire migration");
1160         }
1161
1162         /* return our module name for the log */
1163         return "migrate";
1164 }