citadel/modules/migrate/serv_migrate.c

   1 /*
   2  * This module dumps and/or loads the Citadel database in XML format.
   3  *
   4  * Copyright (c) 1987-2018 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(struct ctdluser *buf, void *data) {
 118         client_write(HKEY("<user>\n"));
 119         cprintf("<u_version>%d</u_version>\n", buf->version);
 120         cprintf("<u_uid>%ld</u_uid>\n", (long)buf->uid);
 121         client_write(HKEY("<u_password>"));     xml_strout(buf->password);              client_write(HKEY("</u_password>\n"));
 122         cprintf("<u_flags>%u</u_flags>\n", buf->flags);
 123         cprintf("<u_timescalled>%ld</u_timescalled>\n", buf->timescalled);
 124         cprintf("<u_posted>%ld</u_posted>\n", buf->posted);
 125         cprintf("<u_axlevel>%d</u_axlevel>\n", buf->axlevel);
 126         cprintf("<u_usernum>%ld</u_usernum>\n", buf->usernum);
 127         cprintf("<u_lastcall>%ld</u_lastcall>\n", (long)buf->lastcall);
 128         cprintf("<u_USuserpurge>%d</u_USuserpurge>\n", buf->USuserpurge);
 129         client_write(HKEY("<u_fullname>"));     xml_strout(buf->fullname);              client_write(HKEY("</u_fullname>\n"));
 130         cprintf("<u_msgnum_bio>%ld</u_msgnum_bio>\n", buf->msgnum_bio);
 131         cprintf("<u_msgnum_pic>%ld</u_msgnum_pic>\n", buf->msgnum_pic);
 132         client_write(HKEY("</user>\n"));
 133 }
 134
 135
 136 void migr_export_users(void) {
 137         ForEachUser(migr_export_users_backend, NULL);
 138 }
 139
 140
 141 void migr_export_room_msg(long msgnum, void *userdata) {
 142         cprintf("%ld\n", msgnum);
 143         fprintf(migr_global_message_list, "%ld\n", msgnum);
 144 }
 145
 146
 147 void migr_export_rooms_backend(struct ctdlroom *buf, void *data) {
 148         client_write(HKEY("<room>\n"));
 149         client_write(HKEY("<QRname>")); xml_strout(buf->QRname);        client_write(HKEY("</QRname>\n"));
 150         client_write(HKEY("<QRpasswd>"));       xml_strout(buf->QRpasswd);      client_write(HKEY("</QRpasswd>\n"));
 151         cprintf("<QRroomaide>%ld</QRroomaide>\n", buf->QRroomaide);
 152         cprintf("<QRhighest>%ld</QRhighest>\n", buf->QRhighest);
 153         cprintf("<QRgen>%ld</QRgen>\n", (long)buf->QRgen);
 154         cprintf("<QRflags>%u</QRflags>\n", buf->QRflags);
 155         if (buf->QRflags & QR_DIRECTORY) {
 156                 client_write(HKEY("<QRdirname>"));
 157                 xml_strout(buf->QRdirname);
 158                 client_write(HKEY("</QRdirname>\n"));
 159         }
 160         cprintf("<QRfloor>%d</QRfloor>\n", buf->QRfloor);
 161         cprintf("<QRmtime>%ld</QRmtime>\n", (long)buf->QRmtime);
 162         cprintf("<QRexpire_mode>%d</QRexpire_mode>\n", buf->QRep.expire_mode);
 163         cprintf("<QRexpire_value>%d</QRexpire_value>\n", buf->QRep.expire_value);
 164         cprintf("<QRnumber>%ld</QRnumber>\n", buf->QRnumber);
 165         cprintf("<QRorder>%d</QRorder>\n", buf->QRorder);
 166         cprintf("<QRflags2>%u</QRflags2>\n", buf->QRflags2);
 167         cprintf("<QRdefaultview>%d</QRdefaultview>\n", buf->QRdefaultview);
 168         cprintf("<msgnum_info>%ld</msgnum_info>\n", buf->msgnum_info);
 169         cprintf("<msgnum_pic>%ld</msgnum_pic>\n", buf->msgnum_pic);
 170         client_write(HKEY("</room>\n"));
 171
 172         /* message list goes inside this tag */
 173
 174         CtdlGetRoom(&CC->room, buf->QRname);
 175         client_write(HKEY("<room_messages>"));
 176         client_write(HKEY("<FRname>")); xml_strout(CC->room.QRname);    client_write(HKEY("</FRname>\n"));
 177         client_write(HKEY("<FRmsglist>"));
 178         CtdlForEachMessage(MSGS_ALL, 0L, NULL, NULL, NULL, migr_export_room_msg, NULL);
 179         client_write(HKEY("</FRmsglist>\n"));
 180         client_write(HKEY("</room_messages>\n"));
 181
 182
 183 }
 184
 185
 186 void migr_export_rooms(void) {
 187         char cmd[SIZ];
 188         migr_global_message_list = fopen(migr_tempfilename1, "w");
 189         if (migr_global_message_list != NULL) {
 190                 CtdlForEachRoom(migr_export_rooms_backend, NULL);
 191                 fclose(migr_global_message_list);
 192         }
 193
 194         /*
 195          * Process the 'global' message list.  (Sort it and remove dups.
 196          * Dups are ok because a message may be in more than one room, but
 197          * this will be handled by exporting the reference count, not by
 198          * exporting the message multiple times.)
 199          */
 200         snprintf(cmd, sizeof cmd, "sort -n <%s >%s", migr_tempfilename1, migr_tempfilename2);
 201         if (system(cmd) != 0) syslog(LOG_ALERT, "Error %d", errno);
 202         snprintf(cmd, sizeof cmd, "uniq <%s >%s", migr_tempfilename2, migr_tempfilename1);
 203         if (system(cmd) != 0) syslog(LOG_ALERT, "Error %d", errno);
 204
 205
 206         snprintf(cmd, sizeof cmd, "wc -l %s", migr_tempfilename1);
 207         FILE *fp = popen(cmd, "r");
 208         if (fp) {
 209                 fgets(cmd, sizeof cmd, fp);
 210                 pclose(fp);
 211                 total_msgs = atoi(cmd);
 212         }
 213         else {
 214                 total_msgs = 1; // any nonzero just to keep it from barfing
 215         }
 216         syslog(LOG_DEBUG, "Total messages to be exported: %d", total_msgs);
 217 }
 218
 219
 220 void migr_export_floors(void) {
 221         struct floor qfbuf, *buf;
 222         int i;
 223
 224         for (i=0; i < MAXFLOORS; ++i) {
 225                 client_write(HKEY("<floor>\n"));
 226                 cprintf("<f_num>%d</f_num>\n", i);
 227                 CtdlGetFloor(&qfbuf, i);
 228                 buf = &qfbuf;
 229                 cprintf("<f_flags>%u</f_flags>\n", buf->f_flags);
 230                 client_write(HKEY("<f_name>")); xml_strout(buf->f_name); client_write(HKEY("</f_name>\n"));
 231                 cprintf("<f_ref_count>%d</f_ref_count>\n", buf->f_ref_count);
 232                 cprintf("<f_ep_expire_mode>%d</f_ep_expire_mode>\n", buf->f_ep.expire_mode);
 233                 cprintf("<f_ep_expire_value>%d</f_ep_expire_value>\n", buf->f_ep.expire_value);
 234                 client_write(HKEY("</floor>\n"));
 235         }
 236 }
 237
 238
 239 /*
 240  * Return nonzero if the supplied string contains only characters which are valid in a sequence set.
 241  */
 242 int is_sequence_set(char *s) {
 243         if (!s) return(0);
 244
 245         char *c = s;
 246         char ch;
 247         while (ch = *c++, ch) {
 248                 if (!strchr("0123456789*,:", ch)) {
 249                         return(0);
 250                 }
 251         }
 252         return(1);
 253 }
 254
 255
 256 /*
 257  *  Traverse the visits file...
 258  */
 259 void migr_export_visits(void) {
 260         visit vbuf;
 261         struct cdbdata *cdbv;
 262
 263         cdb_rewind(CDB_VISIT);
 264
 265         while (cdbv = cdb_next_item(CDB_VISIT), cdbv != NULL) {
 266                 memset(&vbuf, 0, sizeof(visit));
 267                 memcpy(&vbuf, cdbv->ptr,
 268                        ((cdbv->len > sizeof(visit)) ?
 269                         sizeof(visit) : cdbv->len));
 270                 cdb_free(cdbv);
 271
 272                 client_write(HKEY("<visit>\n"));
 273                 cprintf("<v_roomnum>%ld</v_roomnum>\n", vbuf.v_roomnum);
 274                 cprintf("<v_roomgen>%ld</v_roomgen>\n", vbuf.v_roomgen);
 275                 cprintf("<v_usernum>%ld</v_usernum>\n", vbuf.v_usernum);
 276
 277                 client_write(HKEY("<v_seen>"));
 278                 if ( (!IsEmptyStr(vbuf.v_seen)) && (is_sequence_set(vbuf.v_seen)) ) {
 279                         xml_strout(vbuf.v_seen);
 280                 }
 281                 else {
 282                         cprintf("%ld", vbuf.v_lastseen);
 283                 }
 284                 client_write(HKEY("</v_seen>"));
 285
 286                 if ( (!IsEmptyStr(vbuf.v_answered)) && (is_sequence_set(vbuf.v_answered)) ) {
 287                         client_write(HKEY("<v_answered>"));
 288                         xml_strout(vbuf.v_answered);
 289                         client_write(HKEY("</v_answered>\n"));
 290                 }
 291
 292                 cprintf("<v_flags>%u</v_flags>\n", vbuf.v_flags);
 293                 cprintf("<v_view>%d</v_view>\n", vbuf.v_view);
 294                 client_write(HKEY("</visit>\n"));
 295         }
 296 }
 297
 298
 299 void migr_export_message(long msgnum) {
 300         struct MetaData smi;
 301         struct CtdlMessage *msg;
 302         struct ser_ret smr;
 303
 304         /* We can use a static buffer here because there will never be more than
 305          * one of this operation happening at any given time, and it's really best
 306          * to just keep it allocated once instead of torturing malloc/free.
 307          * Call this function with msgnum "-1" to free the buffer when finished.
 308          */
 309         static int encoded_alloc = 0;
 310         static char *encoded_msg = NULL;
 311
 312         if (msgnum < 0) {
 313                 if ((encoded_alloc == 0) && (encoded_msg != NULL)) {
 314                         free(encoded_msg);
 315                         encoded_alloc = 0;
 316                         encoded_msg = NULL;
 317                 }
 318                 return;
 319         }
 320
 321         /* Ok, here we go ... */
 322
 323         msg = CtdlFetchMessage(msgnum, 1, 0);
 324         if (msg == NULL) return;        /* fail silently */
 325
 326         client_write(HKEY("<message>\n"));
 327         GetMetaData(&smi, msgnum);
 328         cprintf("<msg_msgnum>%ld</msg_msgnum>\n", msgnum);
 329         cprintf("<msg_meta_refcount>%d</msg_meta_refcount>\n", smi.meta_refcount);
 330         cprintf("<msg_meta_rfc822_length>%ld</msg_meta_rfc822_length>\n", smi.meta_rfc822_length);
 331         client_write(HKEY("<msg_meta_content_type>")); xml_strout(smi.meta_content_type); client_write(HKEY("</msg_meta_content_type>\n"));
 332
 333         client_write(HKEY("<msg_text>"));
 334         CtdlSerializeMessage(&smr, msg);
 335         CM_Free(msg);
 336
 337         /* Predict the buffer size we need.  Expand the buffer if necessary. */
 338         int encoded_len = smr.len * 15 / 10 ;
 339         if (encoded_len > encoded_alloc) {
 340                 encoded_alloc = encoded_len;
 341                 encoded_msg = realloc(encoded_msg, encoded_alloc);
 342         }
 343
 344         if (encoded_msg == NULL) {
 345                 /* Questionable hack that hopes it'll work next time and we only lose one message */
 346                 encoded_alloc = 0;
 347         }
 348         else {
 349                 /* Once we do the encoding we know the exact size */
 350                 encoded_len = CtdlEncodeBase64(encoded_msg, (char *)smr.ser, smr.len, 1);
 351                 client_write(encoded_msg, encoded_len);
 352         }
 353
 354         free(smr.ser);
 355
 356         client_write(HKEY("</msg_text>\n"));
 357         client_write(HKEY("</message>\n"));
 358 }
 359
 360
 361 void migr_export_openids(void) {
 362         struct cdbdata *cdboi;
 363         long usernum;
 364         char url[512];
 365
 366         cdb_rewind(CDB_EXTAUTH);
 367         while (cdboi = cdb_next_item(CDB_EXTAUTH), cdboi != NULL) {
 368                 if (cdboi->len > sizeof(long)) {
 369                         client_write(HKEY("<openid>\n"));
 370                         memcpy(&usernum, cdboi->ptr, sizeof(long));
 371                         snprintf(url, sizeof url, "%s", (cdboi->ptr)+sizeof(long) );
 372                         client_write(HKEY("<oid_url>"));
 373                         xml_strout(url);
 374                         client_write(HKEY("</oid_url>\n"));
 375                         cprintf("<oid_usernum>%ld</oid_usernum>\n", usernum);
 376                         client_write(HKEY("</openid>\n"));
 377                 }
 378                 cdb_free(cdboi);
 379         }
 380 }
 381
 382
 383 void migr_export_configs(void) {
 384         struct cdbdata *cdbcfg;
 385         int keylen = 0;
 386         char *key = NULL;
 387         char *value = NULL;
 388
 389         cdb_rewind(CDB_CONFIG);
 390         while (cdbcfg = cdb_next_item(CDB_CONFIG), cdbcfg != NULL) {
 391
 392                 keylen = strlen(cdbcfg->ptr);
 393                 key = cdbcfg->ptr;
 394                 value = cdbcfg->ptr + keylen + 1;
 395
 396                 client_write("<config key=\"", 13);
 397                 xml_strout(key);
 398                 client_write("\">", 2);
 399                 xml_strout(value);
 400                 client_write("</config>\n", 10);
 401                 cdb_free(cdbcfg);
 402         }
 403 }
 404
 405
 406 void migr_export_messages(void) {
 407         char buf[SIZ];
 408         long msgnum;
 409         int count = 0;
 410         int progress = 0;
 411         int prev_progress = 0;
 412         CitContext *Ctx;
 413
 414         Ctx = CC;
 415         migr_global_message_list = fopen(migr_tempfilename1, "r");
 416         if (migr_global_message_list != NULL) {
 417                 syslog(LOG_INFO, "Opened %s", migr_tempfilename1);
 418                 while ((Ctx->kill_me == 0) &&
 419                        (fgets(buf, sizeof(buf), migr_global_message_list) != NULL)) {
 420                         msgnum = atol(buf);
 421                         if (msgnum > 0L) {
 422                                 migr_export_message(msgnum);
 423                                 ++count;
 424                         }
 425                         progress = (count * 74 / total_msgs) + 25 ;
 426                         if ((progress > prev_progress) && (progress < 100)) {
 427                                 cprintf("<progress>%d</progress>\n", progress);
 428                         }
 429                         prev_progress = progress;
 430                 }
 431                 fclose(migr_global_message_list);
 432         }
 433         if (Ctx->kill_me == 0) {
 434                 syslog(LOG_INFO, "Exported %d messages.", count);
 435         }
 436         else {
 437                 syslog(LOG_ERR, "Export aborted due to client disconnect!");
 438         }
 439
 440         migr_export_message(-1L);       /* This frees the encoding buffer */
 441 }
 442
 443
 444 void migr_do_export(void) {
 445         CitContext *Ctx;
 446
 447         Ctx = CC;
 448         cprintf("%d Exporting all Citadel databases.\n", LISTING_FOLLOWS);
 449         Ctx->dont_term = 1;
 450
 451         client_write(HKEY("<?xml version=\"1.0\" encoding=\"UTF-8\" ?>\n"));
 452         client_write(HKEY("<citadel_migrate_data>\n"));
 453         cprintf("<version>%d</version>\n", REV_LEVEL);
 454         cprintf("<progress>%d</progress>\n", 0);
 455
 456         /* export the configuration database */
 457         migr_export_configs();
 458         cprintf("<progress>%d</progress>\n", 2);
 459
 460         if (Ctx->kill_me == 0)  migr_export_users();
 461         cprintf("<progress>%d</progress>\n", 7);
 462         if (Ctx->kill_me == 0)  migr_export_openids();
 463         cprintf("<progress>%d</progress>\n", 12);
 464         if (Ctx->kill_me == 0)  migr_export_rooms();
 465         cprintf("<progress>%d</progress>\n", 17);
 466         if (Ctx->kill_me == 0)  migr_export_floors();
 467         cprintf("<progress>%d</progress>\n", 18);
 468         if (Ctx->kill_me == 0)  migr_export_visits();
 469         cprintf("<progress>%d</progress>\n", 25);
 470         if (Ctx->kill_me == 0)  migr_export_messages();
 471         client_write(HKEY("</citadel_migrate_data>\n"));
 472         cprintf("<progress>%d</progress>\n", 100);
 473         client_write(HKEY("000\n"));
 474         Ctx->dont_term = 0;
 475 }
 476
 477
 478 /******************************************************************************
 479  *                              Import code                                   *
 480  *    Here's the code that implements the import side.  It's going to end up  *
 481  *        being one big loop with lots of global variables.  I don't care.    *
 482  * You wouldn't run multiple concurrent imports anyway.  If this offends your *
 483  * delicate sensibilities  then go rewrite it in Ruby on Rails or something.  *
 484  ******************************************************************************/
 485
 486
 487 int citadel_migrate_data = 0;           /* Are we inside a <citadel_migrate_data> tag pair? */
 488 StrBuf *migr_chardata = NULL;
 489 StrBuf *migr_MsgData = NULL;
 490 struct ctdluser usbuf;
 491 struct ctdlroom qrbuf;
 492 char openid_url[512];
 493 long openid_usernum = 0;
 494 char FRname[ROOMNAMELEN];
 495 struct floor flbuf;
 496 int floornum = 0;
 497 visit vbuf;
 498 struct MetaData smi;
 499 long import_msgnum = 0;
 500
 501 /*
 502  * This callback stores up the data which appears in between tags.
 503  */
 504 void migr_xml_chardata(void *data, const XML_Char *s, int len)
 505 {
 506         StrBufAppendBufPlain(migr_chardata, s, len, 0);
 507 }
 508
 509
 510 void migr_xml_start(void *data, const char *el, const char **attr) {
 511         int i;
 512
 513         /*** GENERAL STUFF ***/
 514
 515         /* Reset chardata_len to zero and init buffer */
 516         FlushStrBuf(migr_chardata);
 517         FlushStrBuf(migr_MsgData);
 518
 519         if (!strcasecmp(el, "citadel_migrate_data")) {
 520                 ++citadel_migrate_data;
 521
 522                 /* As soon as it looks like the input data is a genuine Citadel XML export,
 523                  * whack the existing database on disk to make room for the new one.
 524                  */
 525                 if (citadel_migrate_data == 1) {
 526                         for (i = 0; i < MAXCDB; ++i) {
 527                                 cdb_trunc(i);
 528                         }
 529                 }
 530                 return;
 531         }
 532
 533         if (citadel_migrate_data != 1) {
 534                 syslog(LOG_ALERT, "Out-of-sequence tag <%s> detected.  Warning: ODD-DATA!", el);
 535                 return;
 536         }
 537
 538         /* When we begin receiving XML for one of these record types, clear out the associated
 539          * buffer so we don't accidentally carry over any data from a previous record.
 540          */
 541         if (!strcasecmp(el, "user"))                    memset(&usbuf, 0, sizeof (struct ctdluser));
 542         else if (!strcasecmp(el, "openid"))             memset(openid_url, 0, sizeof openid_url);
 543         else if (!strcasecmp(el, "room"))               memset(&qrbuf, 0, sizeof (struct ctdlroom));
 544         else if (!strcasecmp(el, "room_messages"))      memset(FRname, 0, sizeof FRname);
 545         else if (!strcasecmp(el, "floor"))              memset(&flbuf, 0, sizeof (struct floor));
 546         else if (!strcasecmp(el, "visit"))              memset(&vbuf, 0, sizeof (visit));
 547
 548         else if (!strcasecmp(el, "message")) {
 549                 memset(&smi, 0, sizeof (struct MetaData));
 550                 import_msgnum = 0;
 551         }
 552         else if (!strcasecmp(el, "config")) {
 553                 if (ikey != NULL) {
 554                         free(ikey);
 555                         ikey = NULL;
 556                 }
 557                 while (*attr) {
 558                         if (!strcasecmp(attr[0], "key")) {
 559                                 ikey = strdup(attr[1]);
 560                         }
 561                         attr += 2;
 562                 }
 563         }
 564
 565 }
 566
 567
 568 int migr_userrecord(void *data, const char *el)
 569 {
 570         if (!strcasecmp(el, "u_version"))                       usbuf.version = atoi(ChrPtr(migr_chardata));
 571         else if (!strcasecmp(el, "u_uid"))                      usbuf.uid = atol(ChrPtr(migr_chardata));
 572         else if (!strcasecmp(el, "u_password"))                 safestrncpy(usbuf.password, ChrPtr(migr_chardata), sizeof usbuf.password);
 573         else if (!strcasecmp(el, "u_flags"))                    usbuf.flags = atoi(ChrPtr(migr_chardata));
 574         else if (!strcasecmp(el, "u_timescalled"))              usbuf.timescalled = atol(ChrPtr(migr_chardata));
 575         else if (!strcasecmp(el, "u_posted"))                   usbuf.posted = atol(ChrPtr(migr_chardata));
 576         else if (!strcasecmp(el, "u_axlevel"))                  usbuf.axlevel = atoi(ChrPtr(migr_chardata));
 577         else if (!strcasecmp(el, "u_usernum"))                  usbuf.usernum = atol(ChrPtr(migr_chardata));
 578         else if (!strcasecmp(el, "u_lastcall"))                 usbuf.lastcall = atol(ChrPtr(migr_chardata));
 579         else if (!strcasecmp(el, "u_USuserpurge"))              usbuf.USuserpurge = atoi(ChrPtr(migr_chardata));
 580         else if (!strcasecmp(el, "u_fullname"))                 safestrncpy(usbuf.fullname, ChrPtr(migr_chardata), sizeof usbuf.fullname);
 581         else if (!strcasecmp(el, "u_msgnum_bio"))               usbuf.msgnum_bio = atol(ChrPtr(migr_chardata));
 582         else if (!strcasecmp(el, "u_msgnum_pic"))               usbuf.msgnum_pic = atol(ChrPtr(migr_chardata));
 583         else return 0;
 584         return 1;
 585 }
 586
 587
 588 int migr_roomrecord(void *data, const char *el)
 589 {
 590         if (!strcasecmp(el, "QRname"))                          safestrncpy(qrbuf.QRname, ChrPtr(migr_chardata), sizeof qrbuf.QRname);
 591         else if (!strcasecmp(el, "QRpasswd"))                   safestrncpy(qrbuf.QRpasswd, ChrPtr(migr_chardata), sizeof qrbuf.QRpasswd);
 592         else if (!strcasecmp(el, "QRroomaide"))                 qrbuf.QRroomaide = atol(ChrPtr(migr_chardata));
 593         else if (!strcasecmp(el, "QRhighest"))                  qrbuf.QRhighest = atol(ChrPtr(migr_chardata));
 594         else if (!strcasecmp(el, "QRgen"))                      qrbuf.QRgen = atol(ChrPtr(migr_chardata));
 595         else if (!strcasecmp(el, "QRflags"))                    qrbuf.QRflags = atoi(ChrPtr(migr_chardata));
 596         else if (!strcasecmp(el, "QRdirname"))                  safestrncpy(qrbuf.QRdirname, ChrPtr(migr_chardata), sizeof qrbuf.QRdirname);
 597         else if (!strcasecmp(el, "QRfloor"))                    qrbuf.QRfloor = atoi(ChrPtr(migr_chardata));
 598         else if (!strcasecmp(el, "QRmtime"))                    qrbuf.QRmtime = atol(ChrPtr(migr_chardata));
 599         else if (!strcasecmp(el, "QRexpire_mode"))              qrbuf.QRep.expire_mode = atoi(ChrPtr(migr_chardata));
 600         else if (!strcasecmp(el, "QRexpire_value"))             qrbuf.QRep.expire_value = atoi(ChrPtr(migr_chardata));
 601         else if (!strcasecmp(el, "QRnumber"))                   qrbuf.QRnumber = atol(ChrPtr(migr_chardata));
 602         else if (!strcasecmp(el, "QRorder"))                    qrbuf.QRorder = atoi(ChrPtr(migr_chardata));
 603         else if (!strcasecmp(el, "QRflags2"))                   qrbuf.QRflags2 = atoi(ChrPtr(migr_chardata));
 604         else if (!strcasecmp(el, "QRdefaultview"))              qrbuf.QRdefaultview = atoi(ChrPtr(migr_chardata));
 605         else if (!strcasecmp(el, "msgnum_info"))                qrbuf.msgnum_info = atol(ChrPtr(migr_chardata));
 606         else if (!strcasecmp(el, "msgnum_pic"))                 qrbuf.msgnum_pic = atol(ChrPtr(migr_chardata));
 607         else return 0;
 608         return 1;
 609 }
 610
 611
 612 int migr_floorrecord(void *data, const char *el)
 613 {
 614         if (!strcasecmp(el, "f_num"))                           floornum = atoi(ChrPtr(migr_chardata));
 615         else if (!strcasecmp(el, "f_flags"))                    flbuf.f_flags = atoi(ChrPtr(migr_chardata));
 616         else if (!strcasecmp(el, "f_name"))                     safestrncpy(flbuf.f_name, ChrPtr(migr_chardata), sizeof flbuf.f_name);
 617         else if (!strcasecmp(el, "f_ref_count"))                flbuf.f_ref_count = atoi(ChrPtr(migr_chardata));
 618         else if (!strcasecmp(el, "f_ep_expire_mode"))           flbuf.f_ep.expire_mode = atoi(ChrPtr(migr_chardata));
 619         else if (!strcasecmp(el, "f_ep_expire_value"))          flbuf.f_ep.expire_value = atoi(ChrPtr(migr_chardata));
 620         else return 0;
 621         return 1;
 622 }
 623
 624
 625 int migr_visitrecord(void *data, const char *el)
 626 {
 627         if (!strcasecmp(el, "v_roomnum"))                       vbuf.v_roomnum = atol(ChrPtr(migr_chardata));
 628         else if (!strcasecmp(el, "v_roomgen"))                  vbuf.v_roomgen = atol(ChrPtr(migr_chardata));
 629         else if (!strcasecmp(el, "v_usernum"))                  vbuf.v_usernum = atol(ChrPtr(migr_chardata));
 630
 631         else if (!strcasecmp(el, "v_seen")) {
 632                 int is_textual_seen = 0;
 633                 int i;
 634                 int max = StrLength(migr_chardata);
 635
 636                 vbuf.v_lastseen = atol(ChrPtr(migr_chardata));
 637                 is_textual_seen = 0;
 638                 for (i=0; i < max; ++i)
 639                         if (!isdigit(ChrPtr(migr_chardata)[i]))
 640                                 is_textual_seen = 1;
 641                 if (is_textual_seen)
 642                         safestrncpy(vbuf.v_seen, ChrPtr(migr_chardata), sizeof vbuf.v_seen);
 643         }
 644
 645         else if (!strcasecmp(el, "v_answered"))                 safestrncpy(vbuf.v_answered, ChrPtr(migr_chardata), sizeof vbuf.v_answered);
 646         else if (!strcasecmp(el, "v_flags"))                    vbuf.v_flags = atoi(ChrPtr(migr_chardata));
 647         else if (!strcasecmp(el, "v_view"))                     vbuf.v_view = atoi(ChrPtr(migr_chardata));
 648         else return 0;
 649         return 1;
 650 }
 651
 652
 653 void migr_xml_end(void *data, const char *el)
 654 {
 655         const char *ptr;
 656         int msgcount = 0;
 657         long msgnum = 0L;
 658         long *msglist = NULL;
 659         int msglist_alloc = 0;
 660         /*** GENERAL STUFF ***/
 661
 662         if (!strcasecmp(el, "citadel_migrate_data")) {
 663                 --citadel_migrate_data;
 664                 return;
 665         }
 666
 667         if (citadel_migrate_data != 1) {
 668                 syslog(LOG_ALERT, "Out-of-sequence tag <%s> detected.  Warning: ODD-DATA!", el);
 669                 return;
 670         }
 671
 672         // syslog(LOG_DEBUG, "END TAG: <%s> DATA: <%s>\n", el, (migr_chardata_len ? migr_chardata : ""));
 673
 674         /*** CONFIG ***/
 675
 676         if (!strcasecmp(el, "config"))
 677         {
 678                 syslog(LOG_DEBUG, "Imported config key=%s", ikey);
 679
 680                 if (ikey != NULL) {
 681                         CtdlSetConfigStr(ikey, (char *)ChrPtr(migr_chardata));
 682                         free(ikey);
 683                         ikey = NULL;
 684                 }
 685                 else {
 686                         syslog(LOG_INFO, "Closed a <config> tag but no key name was supplied.");
 687                 }
 688         }
 689
 690         /*** USER ***/
 691         else if ((!strncasecmp(el, HKEY("u_"))) &&
 692                  migr_userrecord(data, el))
 693                 ; /* Nothing to do anymore */
 694         else if (!strcasecmp(el, "user")) {
 695                 CtdlPutUser(&usbuf);
 696                 syslog(LOG_INFO, "Imported user: %s", usbuf.fullname);
 697         }
 698
 699         /*** OPENID ***/
 700
 701         else if (!strcasecmp(el, "oid_url"))                    safestrncpy(openid_url, ChrPtr(migr_chardata), sizeof openid_url);
 702         else if (!strcasecmp(el, "oid_usernum"))                openid_usernum = atol(ChrPtr(migr_chardata));
 703
 704         else if (!strcasecmp(el, "openid")) {                   /* see serv_openid_rp.c for a description of the record format */
 705                 char *oid_data;
 706                 int oid_data_len;
 707                 oid_data_len = sizeof(long) + strlen(openid_url) + 1;
 708                 oid_data = malloc(oid_data_len);
 709                 memcpy(oid_data, &openid_usernum, sizeof(long));
 710                 memcpy(&oid_data[sizeof(long)], openid_url, strlen(openid_url) + 1);
 711                 cdb_store(CDB_EXTAUTH, openid_url, strlen(openid_url), oid_data, oid_data_len);
 712                 free(oid_data);
 713                 syslog(LOG_INFO, "Imported OpenID: %s (%ld)", openid_url, openid_usernum);
 714         }
 715
 716         /*** ROOM ***/
 717         else if ((!strncasecmp(el, HKEY("QR"))) &&
 718                  migr_roomrecord(data, el))
 719                 ; /* Nothing to do anymore */
 720         else if (!strcasecmp(el, "room")) {
 721                 CtdlPutRoom(&qrbuf);
 722                 syslog(LOG_INFO, "Imported room: %s", qrbuf.QRname);
 723         }
 724
 725         /*** ROOM MESSAGE POINTERS ***/
 726
 727         else if (!strcasecmp(el, "FRname"))                     safestrncpy(FRname, ChrPtr(migr_chardata), sizeof FRname);
 728
 729         else if (!strcasecmp(el, "FRmsglist")) {
 730                 if (!IsEmptyStr(FRname)) {
 731                         msgcount = 0;
 732                         msglist_alloc = 1000;
 733                         msglist = malloc(sizeof(long) * msglist_alloc);
 734
 735                         syslog(LOG_DEBUG, "Message list for: %s", FRname);
 736
 737                         ptr = ChrPtr(migr_chardata);
 738                         while (*ptr != 0) {
 739                                 while ((*ptr != 0) && (!isdigit(*ptr))) {
 740                                         ++ptr;
 741                                 }
 742                                 if ((*ptr != 0) && (isdigit(*ptr))) {
 743                                         msgnum = atol(ptr);
 744                                         if (msgnum > 0L) {
 745                                                 if (msgcount >= msglist_alloc) {
 746                                                         msglist_alloc *= 2;
 747                                                         msglist = realloc(msglist, sizeof(long) * msglist_alloc);
 748                                                 }
 749                                                 msglist[msgcount++] = msgnum;
 750                                                 }
 751                                         }
 752                                         while ((*ptr != 0) && (isdigit(*ptr))) {
 753                                                 ++ptr;
 754                                         }
 755                                 }
 756                         }
 757                         if (msgcount > 0) {
 758                                 CtdlSaveMsgPointersInRoom(FRname, msglist, msgcount, 0, NULL, 1);
 759                         }
 760                         free(msglist);
 761                         msglist = NULL;
 762                         msglist_alloc = 0;
 763                         syslog(LOG_DEBUG, "Imported %d messages.", msgcount);
 764                         if (server_shutting_down) {
 765                                 return;
 766                 }
 767         }
 768
 769         /*** FLOORS ***/
 770         else if ((!strncasecmp(el, HKEY("f_"))) &&
 771                  migr_floorrecord(data, el))
 772                 ; /* Nothing to do anymore */
 773
 774         else if (!strcasecmp(el, "floor")) {
 775                 CtdlPutFloor(&flbuf, floornum);
 776                 syslog(LOG_INFO, "Imported floor #%d (%s)", floornum, flbuf.f_name);
 777         }
 778
 779         /*** VISITS ***/
 780         else if ((!strncasecmp(el, HKEY("v_"))) && migr_visitrecord(data, el)) {
 781                 ; /* Nothing to do anymore */
 782         }
 783         else if (!strcasecmp(el, "visit")) {
 784                 put_visit(&vbuf);
 785                 syslog(LOG_INFO, "Imported visit: %ld/%ld/%ld", vbuf.v_roomnum, vbuf.v_roomgen, vbuf.v_usernum);
 786         }
 787
 788         /*** MESSAGES ***/
 789
 790         else if (!strcasecmp(el, "msg_msgnum"))                 smi.meta_msgnum = import_msgnum = atol(ChrPtr(migr_chardata));
 791         else if (!strcasecmp(el, "msg_meta_refcount"))          smi.meta_refcount = atoi(ChrPtr(migr_chardata));
 792         else if (!strcasecmp(el, "msg_meta_rfc822_length"))     smi.meta_rfc822_length = atoi(ChrPtr(migr_chardata));
 793         else if (!strcasecmp(el, "msg_meta_content_type"))      safestrncpy(smi.meta_content_type, ChrPtr(migr_chardata), sizeof smi.meta_content_type);
 794
 795         else if (!strcasecmp(el, "msg_text"))
 796         {
 797                 long rc;
 798                 struct CtdlMessage *msg;
 799
 800                 FlushStrBuf(migr_MsgData);
 801                 StrBufDecodeBase64To(migr_chardata, migr_MsgData);
 802
 803                 msg = CtdlDeserializeMessage(import_msgnum, -1,
 804                                              ChrPtr(migr_MsgData),
 805                                              StrLength(migr_MsgData));
 806                 if (msg != NULL) {
 807                         rc = CtdlSaveThisMessage(msg, import_msgnum, 0);
 808                         if (rc == 0) {
 809                                 PutMetaData(&smi);
 810                         }
 811                         CM_Free(msg);
 812                 }
 813                 else {
 814                         rc = -1;
 815                 }
 816
 817                 syslog(LOG_INFO,
 818                        "%s message #%ld, size=%d, refcount=%d, bodylength=%ld, content-type: %s",
 819                        (rc!= 0)?"failed to import ":"Imported ",
 820                        import_msgnum,
 821                        StrLength(migr_MsgData),
 822                        smi.meta_refcount,
 823                        smi.meta_rfc822_length,
 824                        smi.meta_content_type
 825                 );
 826                 memset(&smi, 0, sizeof(smi));
 827         }
 828
 829         /*** MORE GENERAL STUFF ***/
 830
 831         FlushStrBuf(migr_chardata);
 832 }
 833
 834
 835 /*
 836  * Import begins here
 837  */
 838 void migr_do_import(void) {
 839         StrBuf *Buf;
 840         XML_Parser xp;
 841         int Finished = 0;
 842
 843         unbuffer_output();
 844         migr_chardata = NewStrBufPlain(NULL, SIZ * 20);
 845         migr_MsgData = NewStrBufPlain(NULL, SIZ * 20);
 846         Buf = NewStrBufPlain(NULL, SIZ);
 847         xp = XML_ParserCreate(NULL);
 848         if (!xp) {
 849                 cprintf("%d Failed to create XML parser instance\n", ERROR+INTERNAL_ERROR);
 850                 return;
 851         }
 852         XML_SetElementHandler(xp, migr_xml_start, migr_xml_end);
 853         XML_SetCharacterDataHandler(xp, migr_xml_chardata);
 854
 855         CC->dont_term = 1;
 856
 857         cprintf("%d sock it to me\n", SEND_LISTING);
 858         unbuffer_output();
 859
 860         client_set_inbound_buf(SIZ * 10);
 861
 862         while (!Finished && client_read_random_blob(Buf, -1) >= 0) {
 863                 if ((StrLength(Buf) > 4) && !strcmp(ChrPtr(Buf) + StrLength(Buf) - 4, "000\n")) {
 864                         Finished = 1;
 865                         StrBufCutAt(Buf, StrLength(Buf) - 4, NULL);
 866                 }
 867                 if (server_shutting_down)
 868                         break;  // Should we break or return?
 869
 870                 if (StrLength(Buf) == 0)
 871                         continue;
 872
 873                 XML_Parse(xp, ChrPtr(Buf), StrLength(Buf), 0);
 874                 FlushStrBuf(Buf);
 875         }
 876
 877         XML_Parse(xp, "", 0, 1);
 878         XML_ParserFree(xp);
 879         FreeStrBuf(&Buf);
 880         FreeStrBuf(&migr_chardata);
 881         FreeStrBuf(&migr_MsgData);
 882         rebuild_euid_index();
 883         rebuild_usersbynumber();
 884         CtdlSetConfigInt("MM_fulltext_wordbreaker", -1);        // Set an invalid wordbreaker to force re-indexing
 885         CC->dont_term = 0;
 886 }
 887
 888
 889 /******************************************************************************
 890  *                         Dispatcher, Common code                            *
 891  ******************************************************************************/
 892 /*
 893  * Dump out the pathnames of directories which can be copied "as is"
 894  */
 895 void migr_do_listdirs(void) {
 896         cprintf("%d Don't forget these:\n", LISTING_FOLLOWS);
 897         cprintf("files|%s\n",           ctdl_file_dir);
 898         cprintf("messages|%s\n",        ctdl_message_dir);
 899         cprintf("keys|%s\n",            ctdl_key_dir);
 900         cprintf("000\n");
 901 }
 902
 903
 904 /******************************************************************************
 905  *                    Repair database integrity                               *
 906  ******************************************************************************/
 907
 908 StrBuf *PlainMessageBuf = NULL;
 909 HashList *UsedMessageIDS = NULL;
 910
 911 int migr_restore_message_metadata(long msgnum, int refcount)
 912 {
 913         CitContext *CCC = MyContext();
 914         struct MetaData smi;
 915         struct CtdlMessage *msg;
 916         char *mptr = NULL;
 917
 918         /* We can use a static buffer here because there will never be more than
 919          * one of this operation happening at any given time, and it's really best
 920          * to just keep it allocated once instead of torturing malloc/free.
 921          * Call this function with msgnum "-1" to free the buffer when finished.
 922          */
 923         static int encoded_alloc = 0;
 924         static char *encoded_msg = NULL;
 925
 926         if (msgnum < 0) {
 927                 if ((encoded_alloc == 0) && (encoded_msg != NULL)) {
 928                         free(encoded_msg);
 929                         encoded_alloc = 0;
 930                         encoded_msg = NULL;
 931                         // todo FreeStrBuf(&PlainMessageBuf); PlainMessageBuf = NULL;
 932                 }
 933                 return 0;
 934         }
 935
 936         if (PlainMessageBuf == NULL) {
 937                 PlainMessageBuf = NewStrBufPlain(NULL, 10*SIZ);
 938         }
 939
 940         /* Ok, here we go ... */
 941
 942         msg = CtdlFetchMessage(msgnum, 1, 0);
 943         if (msg == NULL) {
 944                 return 1;
 945         }
 946
 947         GetMetaData(&smi, msgnum);
 948         smi.meta_msgnum = msgnum;
 949         smi.meta_refcount = refcount;
 950
 951         /* restore the content type from the message body: */
 952         mptr = bmstrcasestr(msg->cm_fields[eMesageText], "Content-type:");
 953         if (mptr != NULL) {
 954                 char *aptr;
 955                 safestrncpy(smi.meta_content_type, &mptr[13], sizeof smi.meta_content_type);
 956                 striplt(smi.meta_content_type);
 957                 aptr = smi.meta_content_type;
 958                 while (!IsEmptyStr(aptr)) {
 959                         if ((*aptr == ';')
 960                             || (*aptr == ' ')
 961                             || (*aptr == 13)
 962                             || (*aptr == 10)) {
 963                                 memset(aptr, 0, sizeof(smi.meta_content_type) - (aptr - smi.meta_content_type));
 964                         }
 965                         else aptr++;
 966                 }
 967         }
 968
 969         CCC->redirect_buffer = PlainMessageBuf;
 970         CtdlOutputPreLoadedMsg(msg, MT_RFC822, HEADERS_ALL, 0, 1, QP_EADDR);
 971         smi.meta_rfc822_length = StrLength(CCC->redirect_buffer);
 972         CCC->redirect_buffer = NULL;
 973
 974         syslog(LOG_INFO,
 975                "Setting message #%ld meta data to: refcount=%d, bodylength=%ld, content-type: %s",
 976                smi.meta_msgnum,
 977                smi.meta_refcount,
 978                smi.meta_rfc822_length,
 979                smi.meta_content_type
 980         );
 981
 982         PutMetaData(&smi);
 983
 984         CM_Free(msg);
 985
 986         return 0;
 987 }
 988
 989
 990 void migr_check_room_msg(long msgnum, void *userdata) {
 991         fprintf(migr_global_message_list, "%ld %s\n", msgnum, CC->room.QRname);
 992 }
 993
 994
 995 void migr_check_rooms_backend(struct ctdlroom *buf, void *data) {
 996
 997         /* message list goes inside this tag */
 998
 999         CtdlGetRoom(&CC->room, buf->QRname);
1000         CtdlForEachMessage(MSGS_ALL, 0L, NULL, NULL, NULL, migr_check_room_msg, NULL);
1001 }
1002
1003
1004 void RemoveMessagesFromRooms(StrBuf *RoomNameVec, long msgnum) {
1005         struct MetaData smi;
1006         const char *Pos = NULL;
1007         StrBuf *oneRoom = NewStrBuf();
1008
1009         syslog(LOG_INFO, "removing message pointer %ld from these rooms: %s", msgnum, ChrPtr(RoomNameVec));
1010
1011         while (Pos != StrBufNOTNULL){
1012                 StrBufExtract_NextToken(oneRoom, RoomNameVec, &Pos, '|');
1013                 CtdlDeleteMessages(ChrPtr(oneRoom), &msgnum, 1, "");
1014         };
1015         GetMetaData(&smi, msgnum);
1016         AdjRefCount(msgnum, -smi.meta_refcount);
1017 }
1018
1019
1020 void migr_do_restore_meta(void) {
1021         char buf[SIZ];
1022         int failGetMessage;
1023         long msgnum = 0;
1024         int lastnum = 0;
1025         int refcount = 0;
1026         CitContext *Ctx;
1027         char *prn;
1028         StrBuf *RoomNames;
1029         char cmd[SIZ];
1030
1031         migr_global_message_list = fopen(migr_tempfilename1, "w");
1032         if (migr_global_message_list != NULL) {
1033                 CtdlForEachRoom(migr_check_rooms_backend, NULL);
1034                 fclose(migr_global_message_list);
1035         }
1036
1037         /*
1038          * Process the 'global' message list.  (Sort it and remove dups.
1039          * Dups are ok because a message may be in more than one room, but
1040          * this will be handled by exporting the reference count, not by
1041          * exporting the message multiple times.)
1042          */
1043         snprintf(cmd, sizeof cmd, "sort -n <%s >%s", migr_tempfilename1, migr_tempfilename2);
1044         if (system(cmd) != 0) syslog(LOG_ALERT, "Error %d", errno);
1045
1046         RoomNames = NewStrBuf();
1047         Ctx = CC;
1048         migr_global_message_list = fopen(migr_tempfilename2, "r");
1049         if (migr_global_message_list != NULL) {
1050                 syslog(LOG_INFO, "Opened %s", migr_tempfilename1);
1051                 while ((Ctx->kill_me == 0) &&
1052                        (fgets(buf, sizeof(buf), migr_global_message_list) != NULL)) {
1053                         msgnum = atol(buf);
1054                         if (msgnum == 0L)
1055                                 continue;
1056                         if (lastnum == 0) {
1057                                 lastnum = msgnum;
1058                         }
1059                         prn = strchr(buf, ' ');
1060                         if (lastnum != msgnum) {
1061                                 failGetMessage = migr_restore_message_metadata(lastnum, refcount);
1062                                 if (failGetMessage) {
1063                                         RemoveMessagesFromRooms(RoomNames, lastnum);
1064                                 }
1065                                 refcount = 1;
1066                                 lastnum = msgnum;
1067                                 if (prn != NULL) {
1068                                         StrBufPlain(RoomNames, prn + 1, -1);
1069                                 }
1070                                 StrBufTrim(RoomNames);
1071                         }
1072                         else {
1073                                 if (prn != NULL) {
1074                                         if (StrLength(RoomNames) > 0) {
1075                                                 StrBufAppendBufPlain(RoomNames, HKEY("|"), 0);
1076                                         }
1077                                         StrBufAppendBufPlain(RoomNames, prn, -1, 1);
1078                                         StrBufTrim(RoomNames);
1079                                 }
1080                                 refcount ++;
1081                         }
1082                         lastnum = msgnum;
1083                 }
1084                 failGetMessage = migr_restore_message_metadata(msgnum, refcount);
1085                 if (failGetMessage) {
1086                         RemoveMessagesFromRooms(RoomNames, lastnum);
1087                 }
1088                 fclose(migr_global_message_list);
1089         }
1090
1091         migr_restore_message_metadata(-1L, -1); /* This frees the encoding buffer */
1092         cprintf("%d system analysis completed", CIT_OK);
1093         Ctx->kill_me = 1;
1094 }
1095
1096
1097 /******************************************************************************
1098  *                         Dispatcher, Common code                            *
1099  ******************************************************************************/
1100 void cmd_migr(char *cmdbuf) {
1101         char cmd[32];
1102
1103         if (CtdlAccessCheck(ac_internal)) return;
1104
1105         if (CtdlTrySingleUser()) {
1106                 CtdlDisableHouseKeeping();
1107                 CtdlMakeTempFileName(migr_tempfilename1, sizeof migr_tempfilename1);
1108                 CtdlMakeTempFileName(migr_tempfilename2, sizeof migr_tempfilename2);
1109
1110                 extract_token(cmd, cmdbuf, 0, '|', sizeof cmd);
1111                 if (!strcasecmp(cmd, "export")) {
1112                         migr_do_export();
1113                 }
1114                 else if (!strcasecmp(cmd, "import")) {
1115                         migr_do_import();
1116                 }
1117                 else if (!strcasecmp(cmd, "listdirs")) {
1118                         migr_do_listdirs();
1119                 }
1120                 else if (!strcasecmp(cmd, "restoremeta")) {
1121                         migr_do_restore_meta();
1122                 }
1123                 else {
1124                         cprintf("%d illegal command\n", ERROR + ILLEGAL_VALUE);
1125                 }
1126
1127                 unlink(migr_tempfilename1);
1128                 unlink(migr_tempfilename2);
1129
1130                 CtdlEnableHouseKeeping();
1131                 CtdlEndSingleUser();
1132         }
1133         else {
1134                 cprintf("%d The migrator is already running.\n", ERROR + RESOURCE_BUSY);
1135         }
1136 }
1137
1138
1139 /******************************************************************************
1140  *                              Module Hook                                  *
1141  ******************************************************************************/
1142
1143 CTDL_MODULE_INIT(migrate)
1144 {
1145         if (!threading)
1146         {
1147                 CtdlRegisterProtoHook(cmd_migr, "MIGR", "Across-the-wire migration");
1148         }
1149
1150         /* return our module name for the log */
1151         return "migrate";
1152 }