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