citadel/modules/migrate/serv_migrate.c

   1 /*
   2  * This module dumps and/or loads the Citadel database in XML format.
   3  *
   4  * Copyright (c) 1987-2016 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         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("<QRinfo>%ld</QRinfo>\n", buf->QRinfo);
 159         cprintf("<QRfloor>%d</QRfloor>\n", buf->QRfloor);
 160         cprintf("<QRmtime>%ld</QRmtime>\n", (long)buf->QRmtime);
 161         cprintf("<QRexpire_mode>%d</QRexpire_mode>\n", buf->QRep.expire_mode);
 162         cprintf("<QRexpire_value>%d</QRexpire_value>\n", buf->QRep.expire_value);
 163         cprintf("<QRnumber>%ld</QRnumber>\n", buf->QRnumber);
 164         cprintf("<QRorder>%d</QRorder>\n", buf->QRorder);
 165         cprintf("<QRflags2>%u</QRflags2>\n", buf->QRflags2);
 166         cprintf("<QRdefaultview>%d</QRdefaultview>\n", buf->QRdefaultview);
 167         client_write(HKEY("</room>\n"));
 168
 169         /* message list goes inside this tag */
 170
 171         CtdlGetRoom(&CC->room, buf->QRname);
 172         client_write(HKEY("<room_messages>"));
 173         client_write(HKEY("<FRname>")); xml_strout(CC->room.QRname);    client_write(HKEY("</FRname>\n"));
 174         client_write(HKEY("<FRmsglist>"));
 175         CtdlForEachMessage(MSGS_ALL, 0L, NULL, NULL, NULL, migr_export_room_msg, NULL);
 176         client_write(HKEY("</FRmsglist>\n"));
 177         client_write(HKEY("</room_messages>\n"));
 178
 179
 180 }
 181
 182
 183 void migr_export_rooms(void) {
 184         char cmd[SIZ];
 185         migr_global_message_list = fopen(migr_tempfilename1, "w");
 186         if (migr_global_message_list != NULL) {
 187                 CtdlForEachRoom(migr_export_rooms_backend, NULL);
 188                 fclose(migr_global_message_list);
 189         }
 190
 191         /*
 192          * Process the 'global' message list.  (Sort it and remove dups.
 193          * Dups are ok because a message may be in more than one room, but
 194          * this will be handled by exporting the reference count, not by
 195          * exporting the message multiple times.)
 196          */
 197         snprintf(cmd, sizeof cmd, "sort -n <%s >%s", migr_tempfilename1, migr_tempfilename2);
 198         if (system(cmd) != 0) syslog(LOG_ALERT, "Error %d", errno);
 199         snprintf(cmd, sizeof cmd, "uniq <%s >%s", migr_tempfilename2, migr_tempfilename1);
 200         if (system(cmd) != 0) syslog(LOG_ALERT, "Error %d", errno);
 201
 202
 203         snprintf(cmd, sizeof cmd, "wc -l %s", migr_tempfilename1);
 204         FILE *fp = popen(cmd, "r");
 205         if (fp) {
 206                 fgets(cmd, sizeof cmd, fp);
 207                 pclose(fp);
 208                 total_msgs = atoi(cmd);
 209         }
 210         else {
 211                 total_msgs = 1; // any nonzero just to keep it from barfing
 212         }
 213         syslog(LOG_DEBUG, "Total messages to be exported: %d", total_msgs);
 214 }
 215
 216
 217 void migr_export_floors(void) {
 218         struct floor qfbuf, *buf;
 219         int i;
 220
 221         for (i=0; i < MAXFLOORS; ++i) {
 222                 client_write(HKEY("<floor>\n"));
 223                 cprintf("<f_num>%d</f_num>\n", i);
 224                 CtdlGetFloor(&qfbuf, i);
 225                 buf = &qfbuf;
 226                 cprintf("<f_flags>%u</f_flags>\n", buf->f_flags);
 227                 client_write(HKEY("<f_name>")); xml_strout(buf->f_name); client_write(HKEY("</f_name>\n"));
 228                 cprintf("<f_ref_count>%d</f_ref_count>\n", buf->f_ref_count);
 229                 cprintf("<f_ep_expire_mode>%d</f_ep_expire_mode>\n", buf->f_ep.expire_mode);
 230                 cprintf("<f_ep_expire_value>%d</f_ep_expire_value>\n", buf->f_ep.expire_value);
 231                 client_write(HKEY("</floor>\n"));
 232         }
 233 }
 234
 235
 236 /*
 237  * Return nonzero if the supplied string contains only characters which are valid in a sequence set.
 238  */
 239 int is_sequence_set(char *s) {
 240         if (!s) return(0);
 241
 242         char *c = s;
 243         char ch;
 244         while (ch = *c++, ch) {
 245                 if (!strchr("0123456789*,:", ch)) {
 246                         return(0);
 247                 }
 248         }
 249         return(1);
 250 }
 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, 0);
 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         client_write(HKEY("<msg_mimetype>")); xml_strout(smi.mimetype); client_write(HKEY("</msg_mimetype>\n"));
 331
 332         client_write(HKEY("<msg_text>"));
 333         CtdlSerializeMessage(&smr, msg);
 334         CM_Free(msg);
 335
 336         /* Predict the buffer size we need.  Expand the buffer if necessary. */
 337         int encoded_len = smr.len * 15 / 10 ;
 338         if (encoded_len > encoded_alloc) {
 339                 encoded_alloc = encoded_len;
 340                 encoded_msg = realloc(encoded_msg, encoded_alloc);
 341         }
 342
 343         if (encoded_msg == NULL) {
 344                 /* Questionable hack that hopes it'll work next time and we only lose one message */
 345                 encoded_alloc = 0;
 346         }
 347         else {
 348                 /* Once we do the encoding we know the exact size */
 349                 encoded_len = CtdlEncodeBase64(encoded_msg, (char *)smr.ser, smr.len, 1);
 350                 client_write(encoded_msg, encoded_len);
 351         }
 352
 353         free(smr.ser);
 354
 355         client_write(HKEY("</msg_text>\n"));
 356         client_write(HKEY("</message>\n"));
 357 }
 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_OPENID);
 367         while (cdboi = cdb_next_item(CDB_OPENID), 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
 407
 408 void migr_export_messages(void) {
 409         char buf[SIZ];
 410         long msgnum;
 411         int count = 0;
 412         int progress = 0;
 413         int prev_progress = 0;
 414         CitContext *Ctx;
 415
 416         Ctx = CC;
 417         migr_global_message_list = fopen(migr_tempfilename1, "r");
 418         if (migr_global_message_list != NULL) {
 419                 syslog(LOG_INFO, "Opened %s", migr_tempfilename1);
 420                 while ((Ctx->kill_me == 0) &&
 421                        (fgets(buf, sizeof(buf), migr_global_message_list) != NULL)) {
 422                         msgnum = atol(buf);
 423                         if (msgnum > 0L) {
 424                                 migr_export_message(msgnum);
 425                                 ++count;
 426                         }
 427                         progress = (count * 74 / total_msgs) + 25 ;
 428                         if ((progress > prev_progress) && (progress < 100)) {
 429                                 cprintf("<progress>%d</progress>\n", progress);
 430                         }
 431                         prev_progress = progress;
 432                 }
 433                 fclose(migr_global_message_list);
 434         }
 435         if (Ctx->kill_me == 0)
 436                 syslog(LOG_INFO, "Exported %d messages.", count);
 437         else
 438                 syslog(LOG_ERR, "Export aborted due to client disconnect!");
 439
 440         migr_export_message(-1L);       /* This frees the encoding buffer */
 441 }
 442
 443
 444
 445 void migr_do_export(void) {
 446         CitContext *Ctx;
 447
 448         Ctx = CC;
 449         cprintf("%d Exporting all Citadel databases.\n", LISTING_FOLLOWS);
 450         Ctx->dont_term = 1;
 451
 452         client_write(HKEY("<?xml version=\"1.0\" encoding=\"UTF-8\" ?>\n"));
 453         client_write(HKEY("<citadel_migrate_data>\n"));
 454         cprintf("<version>%d</version>\n", REV_LEVEL);
 455         cprintf("<progress>%d</progress>\n", 0);
 456
 457         /* export the configuration database */
 458         migr_export_configs();
 459         cprintf("<progress>%d</progress>\n", 2);
 460
 461         if (Ctx->kill_me == 0)  migr_export_users();
 462         cprintf("<progress>%d</progress>\n", 7);
 463         if (Ctx->kill_me == 0)  migr_export_openids();
 464         cprintf("<progress>%d</progress>\n", 12);
 465         if (Ctx->kill_me == 0)  migr_export_rooms();
 466         cprintf("<progress>%d</progress>\n", 17);
 467         if (Ctx->kill_me == 0)  migr_export_floors();
 468         cprintf("<progress>%d</progress>\n", 18);
 469         if (Ctx->kill_me == 0)  migr_export_visits();
 470         cprintf("<progress>%d</progress>\n", 25);
 471         if (Ctx->kill_me == 0)  migr_export_messages();
 472         client_write(HKEY("</citadel_migrate_data>\n"));
 473         cprintf("<progress>%d</progress>\n", 100);
 474         client_write(HKEY("000\n"));
 475         Ctx->dont_term = 0;
 476 }
 477
 478
 479
 480
 481 /******************************************************************************
 482  *                              Import code                                   *
 483  *    Here's the code that implements the import side.  It's going to end up  *
 484  *        being one big loop with lots of global variables.  I don't care.    *
 485  * You wouldn't run multiple concurrent imports anyway.  If this offends your *
 486  * delicate sensibilities  then go rewrite it in Ruby on Rails or something.  *
 487  ******************************************************************************/
 488
 489
 490 int citadel_migrate_data = 0;           /* Are we inside a <citadel_migrate_data> tag pair? */
 491 StrBuf *migr_chardata = NULL;
 492 StrBuf *migr_MsgData = NULL;
 493 struct ctdluser usbuf;
 494 struct ctdlroom qrbuf;
 495 char openid_url[512];
 496 long openid_usernum = 0;
 497 char FRname[ROOMNAMELEN];
 498 struct floor flbuf;
 499 int floornum = 0;
 500 visit vbuf;
 501 struct MetaData smi;
 502 long import_msgnum = 0;
 503
 504 /*
 505  * This callback stores up the data which appears in between tags.
 506  */
 507 void migr_xml_chardata(void *data, const XML_Char *s, int len)
 508 {
 509         StrBufAppendBufPlain(migr_chardata, s, len, 0);
 510 }
 511
 512
 513 void migr_xml_start(void *data, const char *el, const char **attr) {
 514         int i;
 515
 516         /*** GENERAL STUFF ***/
 517
 518         /* Reset chardata_len to zero and init buffer */
 519         FlushStrBuf(migr_chardata);
 520         FlushStrBuf(migr_MsgData);
 521
 522         if (!strcasecmp(el, "citadel_migrate_data")) {
 523                 ++citadel_migrate_data;
 524
 525                 /* As soon as it looks like the input data is a genuine Citadel XML export,
 526                  * whack the existing database on disk to make room for the new one.
 527                  */
 528                 if (citadel_migrate_data == 1) {
 529                         for (i = 0; i < MAXCDB; ++i) {
 530                                 cdb_trunc(i);
 531                         }
 532                 }
 533                 return;
 534         }
 535
 536         if (citadel_migrate_data != 1) {
 537                 syslog(LOG_ALERT, "Out-of-sequence tag <%s> detected.  Warning: ODD-DATA!", el);
 538                 return;
 539         }
 540
 541         /* When we begin receiving XML for one of these record types, clear out the associated
 542          * buffer so we don't accidentally carry over any data from a previous record.
 543          */
 544         if (!strcasecmp(el, "user"))                    memset(&usbuf, 0, sizeof (struct ctdluser));
 545         else if (!strcasecmp(el, "openid"))             memset(openid_url, 0, sizeof openid_url);
 546         else if (!strcasecmp(el, "room"))               memset(&qrbuf, 0, sizeof (struct ctdlroom));
 547         else if (!strcasecmp(el, "room_messages"))      memset(FRname, 0, sizeof FRname);
 548         else if (!strcasecmp(el, "floor"))              memset(&flbuf, 0, sizeof (struct floor));
 549         else if (!strcasecmp(el, "visit"))              memset(&vbuf, 0, sizeof (visit));
 550
 551         else if (!strcasecmp(el, "message")) {
 552                 memset(&smi, 0, sizeof (struct MetaData));
 553                 import_msgnum = 0;
 554         }
 555         else if (!strcasecmp(el, "config")) {
 556                 if (ikey != NULL) {
 557                         free(ikey);
 558                         ikey = NULL;
 559                 }
 560                 while (*attr) {
 561                         if (!strcasecmp(attr[0], "key")) {
 562                                 ikey = strdup(attr[1]);
 563                         }
 564                         attr += 2;
 565                 }
 566         }
 567
 568 }
 569
 570
 571 int migr_userrecord(void *data, const char *el)
 572 {
 573         if (!strcasecmp(el, "u_version"))                       usbuf.version = atoi(ChrPtr(migr_chardata));
 574         else if (!strcasecmp(el, "u_uid"))                      usbuf.uid = atol(ChrPtr(migr_chardata));
 575         else if (!strcasecmp(el, "u_password"))                 safestrncpy(usbuf.password, ChrPtr(migr_chardata), sizeof usbuf.password);
 576         else if (!strcasecmp(el, "u_flags"))                    usbuf.flags = atoi(ChrPtr(migr_chardata));
 577         else if (!strcasecmp(el, "u_timescalled"))              usbuf.timescalled = atol(ChrPtr(migr_chardata));
 578         else if (!strcasecmp(el, "u_posted"))                   usbuf.posted = atol(ChrPtr(migr_chardata));
 579         else if (!strcasecmp(el, "u_axlevel"))                  usbuf.axlevel = atoi(ChrPtr(migr_chardata));
 580         else if (!strcasecmp(el, "u_usernum"))                  usbuf.usernum = atol(ChrPtr(migr_chardata));
 581         else if (!strcasecmp(el, "u_lastcall"))                 usbuf.lastcall = atol(ChrPtr(migr_chardata));
 582         else if (!strcasecmp(el, "u_USuserpurge"))              usbuf.USuserpurge = atoi(ChrPtr(migr_chardata));
 583         else if (!strcasecmp(el, "u_fullname"))                 safestrncpy(usbuf.fullname, ChrPtr(migr_chardata), sizeof usbuf.fullname);
 584         else return 0;
 585         return 1;
 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, "QRinfo"))                     qrbuf.QRinfo = atol(ChrPtr(migr_chardata));
 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 return 0;
 607         return 1;
 608 }
 609
 610 int migr_floorrecord(void *data, const char *el)
 611 {
 612         if (!strcasecmp(el, "f_num"))                   floornum = atoi(ChrPtr(migr_chardata));
 613         else if (!strcasecmp(el, "f_flags"))                    flbuf.f_flags = atoi(ChrPtr(migr_chardata));
 614         else if (!strcasecmp(el, "f_name"))                     safestrncpy(flbuf.f_name, ChrPtr(migr_chardata), sizeof flbuf.f_name);
 615         else if (!strcasecmp(el, "f_ref_count"))                flbuf.f_ref_count = atoi(ChrPtr(migr_chardata));
 616         else if (!strcasecmp(el, "f_ep_expire_mode"))           flbuf.f_ep.expire_mode = atoi(ChrPtr(migr_chardata));
 617         else if (!strcasecmp(el, "f_ep_expire_value"))          flbuf.f_ep.expire_value = atoi(ChrPtr(migr_chardata));
 618         else return 0;
 619         return 1;
 620 }
 621
 622 int migr_visitrecord(void *data, const char *el)
 623 {
 624         if (!strcasecmp(el, "v_roomnum"))                       vbuf.v_roomnum = atol(ChrPtr(migr_chardata));
 625         else if (!strcasecmp(el, "v_roomgen"))                  vbuf.v_roomgen = atol(ChrPtr(migr_chardata));
 626         else if (!strcasecmp(el, "v_usernum"))                  vbuf.v_usernum = atol(ChrPtr(migr_chardata));
 627
 628         else if (!strcasecmp(el, "v_seen")) {
 629                 int is_textual_seen = 0;
 630                 int i;
 631                 int max = StrLength(migr_chardata);
 632
 633                 vbuf.v_lastseen = atol(ChrPtr(migr_chardata));
 634                 is_textual_seen = 0;
 635                 for (i=0; i < max; ++i)
 636                         if (!isdigit(ChrPtr(migr_chardata)[i]))
 637                                 is_textual_seen = 1;
 638                 if (is_textual_seen)
 639                         safestrncpy(vbuf.v_seen, ChrPtr(migr_chardata), sizeof vbuf.v_seen);
 640         }
 641
 642         else if (!strcasecmp(el, "v_answered"))                 safestrncpy(vbuf.v_answered, ChrPtr(migr_chardata), sizeof vbuf.v_answered);
 643         else if (!strcasecmp(el, "v_flags"))                    vbuf.v_flags = atoi(ChrPtr(migr_chardata));
 644         else if (!strcasecmp(el, "v_view"))                     vbuf.v_view = atoi(ChrPtr(migr_chardata));
 645         else return 0;
 646         return 1;
 647 }
 648
 649
 650 void migr_xml_end(void *data, const char *el)
 651 {
 652         const char *ptr;
 653         int msgcount = 0;
 654         long msgnum = 0L;
 655         long *msglist = NULL;
 656         int msglist_alloc = 0;
 657         /*** GENERAL STUFF ***/
 658
 659         if (!strcasecmp(el, "citadel_migrate_data")) {
 660                 --citadel_migrate_data;
 661                 return;
 662         }
 663
 664         if (citadel_migrate_data != 1) {
 665                 syslog(LOG_ALERT, "Out-of-sequence tag <%s> detected.  Warning: ODD-DATA!", el);
 666                 return;
 667         }
 668
 669         // syslog(LOG_DEBUG, "END TAG: <%s> DATA: <%s>\n", el, (migr_chardata_len ? migr_chardata : ""));
 670
 671         /*** CONFIG ***/
 672
 673         if (!strcasecmp(el, "config"))
 674         {
 675                 syslog(LOG_DEBUG, "Imported config key=%s", ikey);
 676
 677                 if (ikey != NULL) {
 678                         CtdlSetConfigStr(ikey, ChrPtr(migr_chardata));
 679                         free(ikey);
 680                         ikey = NULL;
 681                 }
 682                 else {
 683                         syslog(LOG_INFO, "Closed a <config> tag but no key name was supplied.");
 684                 }
 685         }
 686
 687         /*** USER ***/
 688         else if ((!strncasecmp(el, HKEY("u_"))) &&
 689                  migr_userrecord(data, el))
 690                 ; /* Nothing to do anymore */
 691         else if (!strcasecmp(el, "user")) {
 692                 CtdlPutUser(&usbuf);
 693                 syslog(LOG_INFO, "Imported user: %s", usbuf.fullname);
 694         }
 695
 696         /*** OPENID ***/
 697
 698         else if (!strcasecmp(el, "oid_url"))                    safestrncpy(openid_url, ChrPtr(migr_chardata), sizeof openid_url);
 699         else if (!strcasecmp(el, "oid_usernum"))                openid_usernum = atol(ChrPtr(migr_chardata));
 700
 701         else if (!strcasecmp(el, "openid")) {                   /* see serv_openid_rp.c for a description of the record format */
 702                 char *oid_data;
 703                 int oid_data_len;
 704                 oid_data_len = sizeof(long) + strlen(openid_url) + 1;
 705                 oid_data = malloc(oid_data_len);
 706                 memcpy(oid_data, &openid_usernum, sizeof(long));
 707                 memcpy(&oid_data[sizeof(long)], openid_url, strlen(openid_url) + 1);
 708                 cdb_store(CDB_OPENID, openid_url, strlen(openid_url), oid_data, oid_data_len);
 709                 free(oid_data);
 710                 syslog(LOG_INFO, "Imported OpenID: %s (%ld)", openid_url, openid_usernum);
 711         }
 712
 713         /*** ROOM ***/
 714         else if ((!strncasecmp(el, HKEY("QR"))) &&
 715                  migr_roomrecord(data, el))
 716                 ; /* Nothing to do anymore */
 717         else if (!strcasecmp(el, "room")) {
 718                 CtdlPutRoom(&qrbuf);
 719                 syslog(LOG_INFO, "Imported room: %s", qrbuf.QRname);
 720         }
 721
 722         /*** ROOM MESSAGE POINTERS ***/
 723
 724         else if (!strcasecmp(el, "FRname"))                     safestrncpy(FRname, ChrPtr(migr_chardata), sizeof FRname);
 725
 726         else if (!strcasecmp(el, "FRmsglist")) {
 727                 if (!IsEmptyStr(FRname)) {
 728                         msgcount = 0;
 729                         msglist_alloc = 1000;
 730                         msglist = malloc(sizeof(long) * msglist_alloc);
 731
 732                         syslog(LOG_DEBUG, "Message list for: %s", FRname);
 733
 734                         ptr = ChrPtr(migr_chardata);
 735                         while (*ptr != 0) {
 736                                 while ((*ptr != 0) && (!isdigit(*ptr))) {
 737                                         ++ptr;
 738                                 }
 739                                 if ((*ptr != 0) && (isdigit(*ptr))) {
 740                                         msgnum = atol(ptr);
 741                                         if (msgnum > 0L) {
 742                                                 if (msgcount >= msglist_alloc) {
 743                                                         msglist_alloc *= 2;
 744                                                         msglist = realloc(msglist, sizeof(long) * msglist_alloc);
 745                                                 }
 746                                                 msglist[msgcount++] = msgnum;
 747                                                 }
 748                                         }
 749                                         while ((*ptr != 0) && (isdigit(*ptr))) {
 750                                                 ++ptr;
 751                                         }
 752                                 }
 753                         }
 754                         if (msgcount > 0) {
 755                                 CtdlSaveMsgPointersInRoom(FRname, msglist, msgcount, 0, NULL, 1);
 756                         }
 757                         free(msglist);
 758                         msglist = NULL;
 759                         msglist_alloc = 0;
 760                         syslog(LOG_DEBUG, "Imported %d messages.", msgcount);
 761                         if (server_shutting_down) {
 762                                 return;
 763                 }
 764         }
 765
 766         /*** FLOORS ***/
 767         else if ((!strncasecmp(el, HKEY("f_"))) &&
 768                  migr_floorrecord(data, el))
 769                 ; /* Nothing to do anymore */
 770
 771         else if (!strcasecmp(el, "floor")) {
 772                 CtdlPutFloor(&flbuf, floornum);
 773                 syslog(LOG_INFO, "Imported floor #%d (%s)", floornum, flbuf.f_name);
 774         }
 775
 776         /*** VISITS ***/
 777         else if ((!strncasecmp(el, HKEY("v_"))) &&
 778                  migr_visitrecord(data, el))
 779                 ; /* Nothing to do anymore */
 780         else if (!strcasecmp(el, "visit")) {
 781                 put_visit(&vbuf);
 782                 syslog(LOG_INFO, "Imported visit: %ld/%ld/%ld", vbuf.v_roomnum, vbuf.v_roomgen, vbuf.v_usernum);
 783         }
 784
 785         /*** MESSAGES ***/
 786
 787         else if (!strcasecmp(el, "msg_msgnum"))                 smi.meta_msgnum = import_msgnum = atol(ChrPtr(migr_chardata));
 788         else if (!strcasecmp(el, "msg_meta_refcount"))          smi.meta_refcount = atoi(ChrPtr(migr_chardata));
 789         else if (!strcasecmp(el, "msg_meta_rfc822_length"))     smi.meta_rfc822_length = atoi(ChrPtr(migr_chardata));
 790         else if (!strcasecmp(el, "msg_meta_content_type"))      safestrncpy(smi.meta_content_type, ChrPtr(migr_chardata), sizeof smi.meta_content_type);
 791         else if (!strcasecmp(el, "msg_mimetype"))               safestrncpy(smi.mimetype, ChrPtr(migr_chardata), sizeof smi.mimetype);
 792
 793         else if (!strcasecmp(el, "msg_text"))
 794         {
 795                 long rc;
 796                 struct CtdlMessage *msg;
 797
 798                 FlushStrBuf(migr_MsgData);
 799                 StrBufDecodeBase64To(migr_chardata, migr_MsgData);
 800
 801                 msg = CtdlDeserializeMessage(import_msgnum, -1,
 802                                              ChrPtr(migr_MsgData),
 803                                              StrLength(migr_MsgData));
 804                 if (msg != NULL) {
 805                         rc = CtdlSaveThisMessage(msg, import_msgnum, 0);
 806                         if (rc == 0) {
 807                                 PutMetaData(&smi);
 808                         }
 809                         CM_Free(msg);
 810                 }
 811                 else {
 812                         rc = -1;
 813                 }
 814
 815                 syslog(LOG_INFO,
 816                        "%s message #%ld, size=%d, refcount=%d, bodylength=%ld, content-type: %s / %s",
 817                        (rc!= 0)?"failed to import ":"Imported ",
 818                        import_msgnum,
 819                        StrLength(migr_MsgData),
 820                        smi.meta_refcount,
 821                        smi.meta_rfc822_length,
 822                        smi.meta_content_type,
 823                        smi.mimetype);
 824                 memset(&smi, 0, sizeof(smi));
 825         }
 826
 827         /*** MORE GENERAL STUFF ***/
 828
 829         FlushStrBuf(migr_chardata);
 830 }
 831
 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) &&
 864                     !strcmp(ChrPtr(Buf) + StrLength(Buf) - 4, "000\n"))
 865                 {
 866                         Finished = 1;
 867                         StrBufCutAt(Buf, StrLength(Buf) - 4, NULL);
 868                 }
 869                 if (server_shutting_down)
 870                         break;  // Should we break or return?
 871
 872                 if (StrLength(Buf) == 0)
 873                         continue;
 874
 875                 XML_Parse(xp, ChrPtr(Buf), StrLength(Buf), 0);
 876                 FlushStrBuf(Buf);
 877         }
 878
 879         XML_Parse(xp, "", 0, 1);
 880         XML_ParserFree(xp);
 881         FreeStrBuf(&Buf);
 882         FreeStrBuf(&migr_chardata);
 883         FreeStrBuf(&migr_MsgData);
 884         rebuild_euid_index();
 885         rebuild_usersbynumber();
 886         CtdlSetConfigInt("MM_fulltext_wordbreaker", -1);        // Set an invalid wordbreaker to force re-indexing
 887         CC->dont_term = 0;
 888 }
 889
 890
 891
 892 /******************************************************************************
 893  *                         Dispatcher, Common code                            *
 894  ******************************************************************************/
 895 /*
 896  * Dump out the pathnames of directories which can be copied "as is"
 897  */
 898 void migr_do_listdirs(void) {
 899         cprintf("%d Don't forget these:\n", LISTING_FOLLOWS);
 900         cprintf("bio|%s\n",             ctdl_bio_dir);
 901         cprintf("files|%s\n",           ctdl_file_dir);
 902         cprintf("userpics|%s\n",        ctdl_usrpic_dir);
 903         cprintf("messages|%s\n",        ctdl_message_dir);
 904         cprintf("keys|%s\n",            ctdl_key_dir);
 905         cprintf("images|%s\n",          ctdl_image_dir);
 906         cprintf("info|%s\n",            ctdl_info_dir);
 907         cprintf("000\n");
 908 }
 909
 910 /******************************************************************************
 911  *                    Repair database integrity                               *
 912  ******************************************************************************/
 913
 914 StrBuf *PlainMessageBuf = NULL;
 915 HashList *UsedMessageIDS = NULL;
 916
 917 int migr_restore_message_metadata(long msgnum, int refcount)
 918 {
 919         CitContext *CCC = MyContext();
 920         struct MetaData smi;
 921         struct CtdlMessage *msg;
 922         char *mptr = NULL;
 923
 924         /* We can use a static buffer here because there will never be more than
 925          * one of this operation happening at any given time, and it's really best
 926          * to just keep it allocated once instead of torturing malloc/free.
 927          * Call this function with msgnum "-1" to free the buffer when finished.
 928          */
 929         static int encoded_alloc = 0;
 930         static char *encoded_msg = NULL;
 931
 932         if (msgnum < 0) {
 933                 if ((encoded_alloc == 0) && (encoded_msg != NULL)) {
 934                         free(encoded_msg);
 935                         encoded_alloc = 0;
 936                         encoded_msg = NULL;
 937                         // todo FreeStrBuf(&PlainMessageBuf); PlainMessageBuf = NULL;
 938                 }
 939                 return 0;
 940         }
 941
 942         if (PlainMessageBuf == NULL) {
 943                 PlainMessageBuf = NewStrBufPlain(NULL, 10*SIZ);
 944         }
 945
 946         /* Ok, here we go ... */
 947
 948         msg = CtdlFetchMessage(msgnum, 1, 0);
 949         if (msg == NULL) {
 950                 return 1;
 951         }
 952
 953         GetMetaData(&smi, msgnum);
 954         smi.meta_msgnum = msgnum;
 955         smi.meta_refcount = refcount;
 956
 957         /* restore the content type from the message body: */
 958         mptr = bmstrcasestr(msg->cm_fields[eMesageText], "Content-type:");
 959         if (mptr != NULL) {
 960                 char *aptr;
 961                 safestrncpy(smi.meta_content_type, &mptr[13], sizeof smi.meta_content_type);
 962                 striplt(smi.meta_content_type);
 963                 aptr = smi.meta_content_type;
 964                 while (!IsEmptyStr(aptr)) {
 965                         if ((*aptr == ';')
 966                             || (*aptr == ' ')
 967                             || (*aptr == 13)
 968                             || (*aptr == 10)) {
 969                                 memset(aptr, 0, sizeof(smi.meta_content_type) - (aptr - smi.meta_content_type));
 970                         }
 971                         else aptr++;
 972                 }
 973         }
 974
 975         CCC->redirect_buffer = PlainMessageBuf;
 976         CtdlOutputPreLoadedMsg(msg, MT_RFC822, HEADERS_ALL, 0, 1, QP_EADDR);
 977         smi.meta_rfc822_length = StrLength(CCC->redirect_buffer);
 978         CCC->redirect_buffer = NULL;
 979
 980
 981         syslog(LOG_INFO,
 982                "Setting message #%ld meta data to: refcount=%d, bodylength=%ld, content-type: %s / %s",
 983                smi.meta_msgnum,
 984                smi.meta_refcount,
 985                smi.meta_rfc822_length,
 986                smi.meta_content_type,
 987                smi.mimetype);
 988
 989         PutMetaData(&smi);
 990
 991         CM_Free(msg);
 992
 993         return 0;
 994 }
 995
 996 void migr_check_room_msg(long msgnum, void *userdata) {
 997         fprintf(migr_global_message_list, "%ld %s\n", msgnum, CC->room.QRname);
 998 }
 999
1000
1001 void migr_check_rooms_backend(struct ctdlroom *buf, void *data) {
1002
1003         /* message list goes inside this tag */
1004
1005         CtdlGetRoom(&CC->room, buf->QRname);
1006         CtdlForEachMessage(MSGS_ALL, 0L, NULL, NULL, NULL, migr_check_room_msg, NULL);
1007 }
1008
1009 void RemoveMessagesFromRooms(StrBuf *RoomNameVec, long msgnum) {
1010         struct MetaData smi;
1011         const char *Pos = NULL;
1012         StrBuf *oneRoom = NewStrBuf();
1013
1014         syslog(LOG_INFO, "removing message pointer %ld from these rooms: %s", msgnum, ChrPtr(RoomNameVec));
1015
1016         while (Pos != StrBufNOTNULL){
1017                 StrBufExtract_NextToken(oneRoom, RoomNameVec, &Pos, '|');
1018                 CtdlDeleteMessages(ChrPtr(oneRoom), &msgnum, 1, "");
1019         };
1020         GetMetaData(&smi, msgnum);
1021         TDAP_AdjRefCount(msgnum, -smi.meta_refcount);
1022 }
1023
1024 void migr_do_restore_meta(void) {
1025         char buf[SIZ];
1026         int failGetMessage;
1027         long msgnum = 0;
1028         int lastnum = 0;
1029         int refcount = 0;
1030         CitContext *Ctx;
1031         char *prn;
1032         StrBuf *RoomNames;
1033         char cmd[SIZ];
1034
1035         migr_global_message_list = fopen(migr_tempfilename1, "w");
1036         if (migr_global_message_list != NULL) {
1037                 CtdlForEachRoom(migr_check_rooms_backend, NULL);
1038                 fclose(migr_global_message_list);
1039         }
1040
1041         /*
1042          * Process the 'global' message list.  (Sort it and remove dups.
1043          * Dups are ok because a message may be in more than one room, but
1044          * this will be handled by exporting the reference count, not by
1045          * exporting the message multiple times.)
1046          */
1047         snprintf(cmd, sizeof cmd, "sort -n <%s >%s", migr_tempfilename1, migr_tempfilename2);
1048         if (system(cmd) != 0) syslog(LOG_ALERT, "Error %d", errno);
1049
1050         RoomNames = NewStrBuf();
1051         Ctx = CC;
1052         migr_global_message_list = fopen(migr_tempfilename2, "r");
1053         if (migr_global_message_list != NULL) {
1054                 syslog(LOG_INFO, "Opened %s", migr_tempfilename1);
1055                 while ((Ctx->kill_me == 0) &&
1056                        (fgets(buf, sizeof(buf), migr_global_message_list) != NULL)) {
1057                         msgnum = atol(buf);
1058                         if (msgnum == 0L)
1059                                 continue;
1060                         if (lastnum == 0) {
1061                                 lastnum = msgnum;
1062                         }
1063                         prn = strchr(buf, ' ');
1064                         if (lastnum != msgnum) {
1065                                 failGetMessage = migr_restore_message_metadata(lastnum, refcount);
1066                                 if (failGetMessage) {
1067                                         RemoveMessagesFromRooms(RoomNames, lastnum);
1068                                 }
1069                                 refcount = 1;
1070                                 lastnum = msgnum;
1071                                 if (prn != NULL)
1072                                         StrBufPlain(RoomNames, prn + 1, -1);
1073                                 StrBufTrim(RoomNames);
1074                         }
1075                         else {
1076                                 if (prn != NULL) {
1077                                         if (StrLength(RoomNames) > 0)
1078                                                 StrBufAppendBufPlain(RoomNames, HKEY("|"), 0);
1079                                         StrBufAppendBufPlain(RoomNames, prn, -1, 1);
1080                                         StrBufTrim(RoomNames);
1081                                 }
1082                                 refcount ++;
1083                         }
1084                         lastnum = msgnum;
1085                 }
1086                 failGetMessage = migr_restore_message_metadata(msgnum, refcount);
1087                 if (failGetMessage) {
1088                         RemoveMessagesFromRooms(RoomNames, lastnum);
1089                 }
1090                 fclose(migr_global_message_list);
1091         }
1092
1093         migr_restore_message_metadata(-1L, -1); /* This frees the encoding buffer */
1094         cprintf("%d system analysis completed", CIT_OK);
1095         Ctx->kill_me = 1;
1096 }
1097
1098
1099
1100
1101 /******************************************************************************
1102  *                         Dispatcher, Common code                            *
1103  ******************************************************************************/
1104 void cmd_migr(char *cmdbuf) {
1105         char cmd[32];
1106
1107         if (CtdlAccessCheck(ac_internal)) return;
1108
1109         if (CtdlTrySingleUser())
1110         {
1111                 CtdlDisableHouseKeeping();
1112                 CtdlMakeTempFileName(migr_tempfilename1, sizeof migr_tempfilename1);
1113                 CtdlMakeTempFileName(migr_tempfilename2, sizeof migr_tempfilename2);
1114
1115                 extract_token(cmd, cmdbuf, 0, '|', sizeof cmd);
1116                 if (!strcasecmp(cmd, "export")) {
1117                         migr_do_export();
1118                 }
1119                 else if (!strcasecmp(cmd, "import")) {
1120                         migr_do_import();
1121                 }
1122                 else if (!strcasecmp(cmd, "listdirs")) {
1123                         migr_do_listdirs();
1124                 }
1125                 else if (!strcasecmp(cmd, "restoremeta")) {
1126                         migr_do_restore_meta();
1127                 }
1128                 else {
1129                         cprintf("%d illegal command\n", ERROR + ILLEGAL_VALUE);
1130                 }
1131
1132                 unlink(migr_tempfilename1);
1133                 unlink(migr_tempfilename2);
1134
1135                 CtdlEnableHouseKeeping();
1136                 CtdlEndSingleUser();
1137         }
1138         else
1139         {
1140                 cprintf("%d The migrator is already running.\n", ERROR + RESOURCE_BUSY);
1141         }
1142 }
1143
1144 /******************************************************************************
1145  *                              Module Hook                                  *
1146  ******************************************************************************/
1147
1148 CTDL_MODULE_INIT(migrate)
1149 {
1150         if (!threading)
1151         {
1152                 CtdlRegisterProtoHook(cmd_migr, "MIGR", "Across-the-wire migration");
1153         }
1154
1155         /* return our module name for the log */
1156         return "migrate";
1157 }