* Add new XML import/export module
authorArt Cancro <ajc@citadel.org>
Mon, 6 Apr 2009 23:45:51 +0000 (23:45 +0000)
committerArt Cancro <ajc@citadel.org>
Mon, 6 Apr 2009 23:45:51 +0000 (23:45 +0000)
citadel/modules/migrate/serv_migrate.c [new file with mode: 0644]

diff --git a/citadel/modules/migrate/serv_migrate.c b/citadel/modules/migrate/serv_migrate.c
new file mode 100644 (file)
index 0000000..7885a10
--- /dev/null
@@ -0,0 +1,946 @@
+/*
+ * $Id: serv_migrate.c 7274 2009-03-27 15:11:14Z ajc $
+ * Copyright (c) 2000-2009 by the citadel.org development team
+ *
+ * This module dumps and/or loads the Citadel database in XML format.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ * 
+ */
+
+#include "sysdep.h"
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <pwd.h>
+#include <errno.h>
+#include <sys/types.h>
+
+#if TIME_WITH_SYS_TIME
+# include <sys/time.h>
+# include <time.h>
+#else
+# if HAVE_SYS_TIME_H
+#  include <sys/time.h>
+# else
+#  include <time.h>
+# endif
+#endif
+
+#include <sys/wait.h>
+#include <string.h>
+#include <ctype.h>
+#include <limits.h>
+#include <expat.h>
+#include <libcitadel.h>
+#include "citadel.h"
+#include "server.h"
+#include "citserver.h"
+#include "support.h"
+#include "config.h"
+#include "database.h"
+#include "msgbase.h"
+#include "user_ops.h"
+#include "room_ops.h"
+#include "control.h"
+#include "euidindex.h"
+
+
+#include "ctdl_module.h"
+
+
+
+#define END_OF_MESSAGE "---eom---dbd---"
+
+char migr_tempfilename1[PATH_MAX];
+char migr_tempfilename2[PATH_MAX];
+FILE *migr_global_message_list;
+
+
+
+
+/*
+ * Code which implements the export appears in this section
+ */
+
+
+
+/*
+ * Output a string to the client with these characters escaped:  & < >
+ */
+void xml_strout(char *str) {
+
+       char *c = str;
+
+       while (*c != 0) {
+               if (*c == '&') {
+                       client_write("&amp;", 5);
+               }
+               else if (*c == '<') {
+                       client_write("&lt;", 4);
+               }
+               else if (*c == '>') {
+                       client_write("&gt;", 4);
+               }
+               else {
+                       client_write(c, 1);
+               }
+               ++c;
+       }
+}
+
+
+/*
+ * Export a user record as XML
+ */
+void migr_export_users_backend(struct ctdluser *buf, void *data) {
+       client_write("<user>\n", 7);
+       cprintf("<u_version>%d</u_version>\n", buf->version);
+       cprintf("<u_uid>%ld</u_uid>\n", (long)buf->uid);
+       client_write("<u_password>", 12);       xml_strout(buf->password);              client_write("</u_password>\n", 14);
+       cprintf("<u_flags>%u</u_flags>\n", buf->flags);
+       cprintf("<u_timescalled>%ld</u_timescalled>\n", buf->timescalled);
+       cprintf("<u_posted>%ld</u_posted>\n", buf->posted);
+       cprintf("<u_axlevel>%d</u_axlevel>\n", buf->axlevel);
+       cprintf("<u_usernum>%ld</u_usernum>\n", buf->usernum);
+       cprintf("<u_lastcall>%ld</u_lastcall>\n", (long)buf->lastcall);
+       cprintf("<u_USuserpurge>%d</u_USuserpurge>\n", buf->USuserpurge);
+       client_write("<u_fullname>", 12);       xml_strout(buf->fullname);              client_write("</u_fullname>\n", 14);
+       client_write("</user>\n", 8);
+}
+
+
+void migr_export_users(void) {
+       ForEachUser(migr_export_users_backend, NULL);
+}
+
+
+void migr_export_room_msg(long msgnum, void *userdata) {
+       cprintf("%ld\n", msgnum);
+       fprintf(migr_global_message_list, "%ld\n", msgnum);
+}
+
+
+void migr_export_rooms_backend(struct ctdlroom *buf, void *data) {
+       client_write("<room>\n", 7);
+       client_write("<QRname>", 8);    xml_strout(buf->QRname);        client_write("</QRname>\n", 10);
+       client_write("<QRpasswd>", 10); xml_strout(buf->QRpasswd);      client_write("</QRpasswd>\n", 12);
+       cprintf("<QRroomaide>%ld</QRroomaide>\n", buf->QRroomaide);
+       cprintf("<QRhighest>%ld</QRhighest>\n", buf->QRhighest);
+       cprintf("<QRgen>%ld</QRgen>\n", (long)buf->QRgen);
+       cprintf("<QRflags>%u</QRflags>\n", buf->QRflags);
+       client_write("<QRdirname>", 11);        xml_strout(buf->QRdirname);     client_write("</QRdirname>\n", 13);
+       cprintf("<QRinfo>%ld</QRinfo>\n", buf->QRinfo);
+       cprintf("<QRfloor>%d</QRfloor>\n", buf->QRfloor);
+       cprintf("<QRmtime>%ld</QRmtime>\n", (long)buf->QRmtime);
+       cprintf("<QRexpire_mode>%d</QRexpire_mode>\n", buf->QRep.expire_mode);
+       cprintf("<QRexpire_value>%d</QRexpire_value>\n", buf->QRep.expire_value);
+       cprintf("<QRnumber>%ld</QRnumber>\n", buf->QRnumber);
+       cprintf("<QRorder>%d</QRorder>\n", buf->QRorder);
+       cprintf("<QRflags2>%u</QRflags2>\n", buf->QRflags2);
+       cprintf("<QRdefaultview>%d</QRdefaultview>\n", buf->QRdefaultview);
+       client_write("</room>\n", 8);
+
+       /* message list goes inside this tag */
+
+       getroom(&CC->room, buf->QRname);
+       client_write("<room_messages>", 15);
+       client_write("<FRname>", 8);    xml_strout(CC->room.QRname);    client_write("</FRname>\n", 10);
+       client_write("<FRmsglist>", 11);
+       CtdlForEachMessage(MSGS_ALL, 0L, NULL, NULL, NULL, migr_export_room_msg, NULL);
+       client_write("</FRmsglist>\n", 13);
+       client_write("</room_messages>\n", 17);
+
+
+}
+
+
+void migr_export_rooms(void) {
+       char cmd[SIZ];
+       migr_global_message_list = fopen(migr_tempfilename1, "w");
+       if (migr_global_message_list != NULL) {
+               ForEachRoom(migr_export_rooms_backend, NULL);
+               fclose(migr_global_message_list);
+       }
+
+       /*
+        * Process the 'global' message list.  (Sort it and remove dups.
+        * Dups are ok because a message may be in more than one room, but
+        * this will be handled by exporting the reference count, not by
+        * exporting the message multiple times.)
+        */
+       snprintf(cmd, sizeof cmd, "sort <%s >%s", migr_tempfilename1, migr_tempfilename2);
+       if (system(cmd) != 0) CtdlLogPrintf(CTDL_ALERT, "Error %d\n", errno);
+       snprintf(cmd, sizeof cmd, "uniq <%s >%s", migr_tempfilename2, migr_tempfilename1);
+       if (system(cmd) != 0) CtdlLogPrintf(CTDL_ALERT, "Error %d\n", errno);
+}
+
+
+void migr_export_floors(void) {
+        struct floor qfbuf, *buf;
+        int i;
+
+        for (i=0; i < MAXFLOORS; ++i) {
+               client_write("<floor>\n", 8);
+               cprintf("<f_num>%d</f_num>\n", i);
+                getfloor(&qfbuf, i);
+               buf = &qfbuf;
+               cprintf("<f_flags>%u</f_flags>\n", buf->f_flags);
+               client_write("<f_name>", 8); xml_strout(buf->f_name); client_write("</f_name>\n", 10);
+               cprintf("<f_ref_count>%d</f_ref_count>\n", buf->f_ref_count);
+               cprintf("<f_ep_expire_mode>%d</f_ep_expire_mode>\n", buf->f_ep.expire_mode);
+               cprintf("<f_ep_expire_value>%d</f_ep_expire_value>\n", buf->f_ep.expire_value);
+               client_write("</floor>\n", 9);
+       }
+}
+
+
+
+/* 
+ *  Traverse the visits file...
+ */
+void migr_export_visits(void) {
+       struct visit vbuf;
+       struct cdbdata *cdbv;
+
+       cdb_rewind(CDB_VISIT);
+
+       while (cdbv = cdb_next_item(CDB_VISIT), cdbv != NULL) {
+               memset(&vbuf, 0, sizeof(struct visit));
+               memcpy(&vbuf, cdbv->ptr,
+                      ((cdbv->len > sizeof(struct visit)) ?
+                       sizeof(struct visit) : cdbv->len));
+               cdb_free(cdbv);
+
+               client_write("<visit>\n", 8);
+               cprintf("<v_roomnum>%ld</v_roomnum>\n", vbuf.v_roomnum);
+               cprintf("<v_roomgen>%ld</v_roomgen>\n", vbuf.v_roomgen);
+               cprintf("<v_usernum>%ld</v_usernum>\n", vbuf.v_usernum);
+
+               client_write("<v_seen>", 8);
+               if (!IsEmptyStr(vbuf.v_seen)) {
+                       xml_strout(vbuf.v_seen);
+               }
+               else {
+                       cprintf("%ld", vbuf.v_lastseen);
+               }
+               client_write("</v_seen>", 9);
+
+               client_write("<v_answered>", 12); xml_strout(vbuf.v_answered); client_write("</v_answered>\n", 14);
+               cprintf("<v_flags>%u</v_flags>\n", vbuf.v_flags);
+               cprintf("<v_view>%d</v_view>\n", vbuf.v_view);
+               client_write("</visit>\n", 9);
+       }
+}
+
+
+void migr_export_message(long msgnum) {
+       struct MetaData smi;
+       struct CtdlMessage *msg;
+       struct ser_ret smr;
+
+       msg = CtdlFetchMessage(msgnum, 1);
+       if (msg == NULL) return;        /* fail silently */
+
+       client_write("<message>\n", 10);
+       GetMetaData(&smi, msgnum);
+       cprintf("<msg_msgnum>%ld</msg_msgnum>\n", msgnum);
+       cprintf("<msg_meta_refcount>%d</msg_meta_refcount>\n", smi.meta_refcount);
+       client_write("<msg_meta_content_type>", 23); xml_strout(smi.meta_content_type); client_write("</msg_meta_content_type>\n", 25);
+
+       client_write("<msg_text>", 10);
+       serialize_message(&smr, msg);
+       CtdlFreeMessage(msg);
+
+       int encoded_len = 0;
+       int encoded_alloc = smr.len * 139 / 100;        /* well-tested formula for predicting encoded size */
+       char *encoded_msg = malloc(encoded_alloc);
+
+       if (encoded_msg != NULL) {
+               encoded_len = CtdlEncodeBase64(encoded_msg, (char *)smr.ser, smr.len, 1);
+               client_write(encoded_msg, encoded_len);
+               free(encoded_msg);
+       }
+
+       free(smr.ser);
+
+       client_write("</msg_text>\n", 12);
+       client_write("</message>\n", 11);
+}
+
+
+
+void migr_export_openids(void) {
+       struct cdbdata *cdboi;
+       long usernum;
+       char url[512];
+
+       cdb_rewind(CDB_OPENID);
+       while (cdboi = cdb_next_item(CDB_OPENID), cdboi != NULL) {
+               if (cdboi->len > sizeof(long)) {
+                       client_write("<openid>\n", 9);
+                       memcpy(&usernum, cdboi->ptr, sizeof(long));
+                       snprintf(url, sizeof url, "%s", (cdboi->ptr)+sizeof(long) );
+                       client_write("<oid_url>", 9);
+                       xml_strout(url);
+                       client_write("</oid_url>\n", 11);
+                       cprintf("<oid_usernum>%ld</oid_usernum>\n", usernum);
+                       client_write("</openid>\n", 10);
+               }
+               cdb_free(cdboi);
+       }
+}
+
+
+
+
+void migr_export_messages(void) {
+       char buf[SIZ];
+       long msgnum;
+       int count = 0;
+       t_context *Ctx;
+
+       Ctx = CC;
+       migr_global_message_list = fopen(migr_tempfilename1, "r");
+       if (migr_global_message_list != NULL) {
+               CtdlLogPrintf(CTDL_INFO, "Opened %s\n", migr_tempfilename1);
+               while ((Ctx->kill_me != 1) && 
+                      (fgets(buf, sizeof(buf), migr_global_message_list) != NULL)) {
+                       msgnum = atol(buf);
+                       if (msgnum > 0L) {
+                               migr_export_message(msgnum);
+                               ++count;
+                       }
+               }
+               fclose(migr_global_message_list);
+       }
+       if (Ctx->kill_me != 1)
+               CtdlLogPrintf(CTDL_INFO, "Exported %d messages.\n", count);
+       else
+               CtdlLogPrintf(CTDL_ERR, "Export aborted due to client disconnect! \n");
+}
+
+
+
+void migr_do_export(void) {
+       struct config *buf;
+       buf = &config;
+       t_context *Ctx;
+
+       Ctx = CC;
+       cprintf("%d Exporting all Citadel databases.\n", LISTING_FOLLOWS);
+       Ctx->dont_term = 1;
+
+       client_write("<?xml version=\"1.0\" encoding=\"UTF-8\" ?>\n", 40);
+       client_write("<citadel_migrate_data>\n", 23);
+       cprintf("<version>%d</version>\n", REV_LEVEL);
+
+       /* export the config file (this is done using x-macros) */
+       client_write("<config>\n", 9);
+       client_write("<c_nodename>", 12);       xml_strout(config.c_nodename);          client_write("</c_nodename>\n", 14);
+       client_write("<c_fqdn>", 8);            xml_strout(config.c_fqdn);              client_write("</c_fqdn>\n", 10);
+       client_write("<c_humannode>", 13);      xml_strout(config.c_humannode);         client_write("</c_humannode>\n", 15);
+       client_write("<c_phonenum>", 12);       xml_strout(config.c_phonenum);          client_write("</c_phonenum>\n", 14);
+       cprintf("<c_ctdluid>%d</c_ctdluid>\n", config.c_ctdluid);
+       cprintf("<c_creataide>%d</c_creataide>\n", config.c_creataide);
+       cprintf("<c_sleeping>%d</c_sleeping>\n", config.c_sleeping);
+       cprintf("<c_initax>%d</c_initax>\n", config.c_initax);
+       cprintf("<c_regiscall>%d</c_regiscall>\n", config.c_regiscall);
+       cprintf("<c_twitdetect>%d</c_twitdetect>\n", config.c_twitdetect);
+       client_write("<c_twitroom>", 12);       xml_strout(config.c_twitroom);          client_write("</c_twitroom>\n", 14);
+       client_write("<c_moreprompt>", 14);     xml_strout(config.c_moreprompt);        client_write("</c_moreprompt>\n", 16);
+       cprintf("<c_restrict>%d</c_restrict>\n", config.c_restrict);
+       client_write("<c_site_location>", 17);  xml_strout(config.c_site_location);     client_write("</c_site_location>\n", 19);
+       client_write("<c_sysadm>", 10);         xml_strout(config.c_sysadm);            client_write("</c_sysadm>\n", 12);
+       cprintf("<c_setup_level>%d</c_setup_level>\n", config.c_setup_level);
+       cprintf("<c_maxsessions>%d</c_maxsessions>\n", config.c_maxsessions);
+       client_write("<c_ip_addr>", 11);        xml_strout(config.c_ip_addr);           client_write("</c_ip_addr>\n", 13);
+       cprintf("<c_port_number>%d</c_port_number>\n", config.c_port_number);
+       cprintf("<c_ep_expire_mode>%d</c_ep_expire_mode>\n", config.c_ep.expire_mode);
+       cprintf("<c_ep_expire_value>%d</c_ep_expire_value>\n", config.c_ep.expire_value);
+       cprintf("<c_userpurge>%d</c_userpurge>\n", config.c_userpurge);
+       cprintf("<c_roompurge>%d</c_roompurge>\n", config.c_roompurge);
+       client_write("<c_logpages>", 12);       xml_strout(config.c_logpages);          client_write("</c_logpages>\n", 14);
+       cprintf("<c_createax>%d</c_createax>\n", config.c_createax);
+       cprintf("<c_maxmsglen>%ld</c_maxmsglen>\n", config.c_maxmsglen);
+       cprintf("<c_min_workers>%d</c_min_workers>\n", config.c_min_workers);
+       cprintf("<c_max_workers>%d</c_max_workers>\n", config.c_max_workers);
+       cprintf("<c_pop3_port>%d</c_pop3_port>\n", config.c_pop3_port);
+       cprintf("<c_smtp_port>%d</c_smtp_port>\n", config.c_smtp_port);
+       cprintf("<c_rfc822_strict_from>%d</c_rfc822_strict_from>\n", config.c_rfc822_strict_from);
+       cprintf("<c_aide_zap>%d</c_aide_zap>\n", config.c_aide_zap);
+       cprintf("<c_imap_port>%d</c_imap_port>\n", config.c_imap_port);
+       cprintf("<c_net_freq>%ld</c_net_freq>\n", config.c_net_freq);
+       cprintf("<c_disable_newu>%d</c_disable_newu>\n", config.c_disable_newu);
+       cprintf("<c_enable_fulltext>%d</c_enable_fulltext>\n", config.c_enable_fulltext);
+       client_write("<c_baseroom>", 12);       xml_strout(config.c_baseroom);          client_write("</c_baseroom>\n", 14);
+       client_write("<c_aideroom>", 12);       xml_strout(config.c_aideroom);          client_write("</c_aideroom>\n", 14);
+       cprintf("<c_purge_hour>%d</c_purge_hour>\n", config.c_purge_hour);
+       cprintf("<c_mbxep_expire_mode>%d</c_mbxep_expire_mode>\n", config.c_mbxep.expire_mode);
+       cprintf("<c_mbxep_expire_value>%d</c_mbxep_expire_value>\n", config.c_mbxep.expire_value);
+       client_write("<c_ldap_host>", 13);      xml_strout(config.c_ldap_host);         client_write("</c_ldap_host>\n", 15);
+       cprintf("<c_ldap_port>%d</c_ldap_port>\n", config.c_ldap_port);
+       client_write("<c_ldap_base_dn>", 16);   xml_strout(config.c_ldap_base_dn);      client_write("</c_ldap_base_dn>\n", 18);
+       client_write("<c_ldap_bind_dn>", 16);   xml_strout(config.c_ldap_bind_dn);      client_write("</c_ldap_bind_dn>\n", 18);
+       client_write("<c_ldap_bind_pw>", 16);   xml_strout(config.c_ldap_bind_pw);      client_write("</c_ldap_bind_pw>\n", 18);
+       cprintf("<c_msa_port>%d</c_msa_port>\n", config.c_msa_port);
+       cprintf("<c_imaps_port>%d</c_imaps_port>\n", config.c_imaps_port);
+       cprintf("<c_pop3s_port>%d</c_pop3s_port>\n", config.c_pop3s_port);
+       cprintf("<c_smtps_port>%d</c_smtps_port>\n", config.c_smtps_port);
+       cprintf("<c_auto_cull>%d</c_auto_cull>\n", config.c_auto_cull);
+       cprintf("<c_instant_expunge>%d</c_instant_expunge>\n", config.c_instant_expunge);
+       cprintf("<c_allow_spoofing>%d</c_allow_spoofing>\n", config.c_allow_spoofing);
+       cprintf("<c_journal_email>%d</c_journal_email>\n", config.c_journal_email);
+       cprintf("<c_journal_pubmsgs>%d</c_journal_pubmsgs>\n", config.c_journal_pubmsgs);
+       client_write("<c_journal_dest>", 16);   xml_strout(config.c_journal_dest);      client_write("</c_journal_dest>\n", 18);
+       client_write("<c_default_cal_zone>", 20);       xml_strout(config.c_default_cal_zone);  client_write("</c_default_cal_zone>\n", 22);
+       cprintf("<c_pftcpdict_port>%d</c_pftcpdict_port>\n", config.c_pftcpdict_port);
+       cprintf("<c_managesieve_port>%d</c_managesieve_port>\n", config.c_managesieve_port);
+       cprintf("<c_auth_mode>%d</c_auth_mode>\n", config.c_auth_mode);
+       client_write("<c_funambol_host>", 17);  xml_strout(config.c_funambol_host);     client_write("</c_funambol_host>\n", 19);
+       cprintf("<c_funambol_port>%d</c_funambol_port>\n", config.c_funambol_port);
+       client_write("<c_funambol_source>", 19);        xml_strout(config.c_funambol_source);   client_write("</c_funambol_source>\n", 21);
+       client_write("<c_funambol_auth>", 17);  xml_strout(config.c_funambol_auth);     client_write("</c_funambol_auth>\n", 19);
+       cprintf("<c_rbl_at_greeting>%d</c_rbl_at_greeting>\n", config.c_rbl_at_greeting);
+       client_write("<c_master_user>", 15);    xml_strout(config.c_master_user);               client_write("</c_master_user>\n", 17);
+       client_write("<c_master_pass>", 15);    xml_strout(config.c_master_pass);               client_write("</c_master_pass>\n", 17);
+       client_write("<c_pager_program>", 17);  xml_strout(config.c_pager_program);             client_write("</c_pager_program>\n", 19);
+       cprintf("<c_imap_keep_from>%d</c_imap_keep_from>\n", config.c_imap_keep_from);
+       cprintf("<c_xmpp_c2s_port>%d</c_xmpp_c2s_port>\n", config.c_xmpp_c2s_port);
+       cprintf("<c_xmpp_s2s_port>%d</c_xmpp_s2s_port>\n", config.c_xmpp_s2s_port);
+       cprintf("<c_pop3_fetch>%ld</c_pop3_fetch>\n", config.c_pop3_fetch);
+       cprintf("<c_pop3_fastest>%ld</c_pop3_fastest>\n", config.c_pop3_fastest);
+       cprintf("<c_spam_flag_only>%d</c_spam_flag_only>\n", config.c_spam_flag_only);
+       client_write("</config>\n", 10);
+       
+       /* Export the control file */
+       get_control();
+       client_write("<control>\n", 10);
+       cprintf("<control_highest>%ld</control_highest>\n", CitControl.MMhighest);
+       cprintf("<control_flags>%u</control_flags>\n", CitControl.MMflags);
+       cprintf("<control_nextuser>%ld</control_nextuser>\n", CitControl.MMnextuser);
+       cprintf("<control_nextroom>%ld</control_nextroom>\n", CitControl.MMnextroom);
+       cprintf("<control_version>%d</control_version>\n", CitControl.version);
+       client_write("</control>\n", 11);
+
+       if (Ctx->kill_me != 1)  migr_export_users();
+       if (Ctx->kill_me != 1)  migr_export_openids();
+       if (Ctx->kill_me != 1)  migr_export_rooms();
+       if (Ctx->kill_me != 1)  migr_export_floors();
+       if (Ctx->kill_me != 1)  migr_export_visits();
+       if (Ctx->kill_me != 1)  migr_export_messages();
+       client_write("</citadel_migrate_data>\n", 24);
+       client_write("000\n", 4);
+       Ctx->dont_term = 0;
+}
+
+
+
+
+       
+/*
+ * Here's the code that implements the import side.  It's going to end up being
+ * one big loop with lots of global variables.  I don't care.  You wouldn't run
+ * multiple concurrent imports anyway.  If this offends your delicate sensibilities
+ * then go rewrite it in Ruby on Rails or something.
+ */
+
+
+int citadel_migrate_data = 0;          /* Are we inside a <citadel_migrate_data> tag pair? */
+char *migr_chardata = NULL;
+int migr_chardata_len = 0;
+struct ctdluser usbuf;
+struct ctdlroom qrbuf;
+char openid_url[512];
+long openid_usernum = 0;
+char FRname[ROOMNAMELEN];
+struct floor flbuf;
+int floornum = 0;
+struct visit vbuf;
+struct MetaData smi;
+long import_msgnum = 0;
+char *decoded_msg = NULL;
+
+/*
+ * This callback stores up the data which appears in between tags.
+ */
+void migr_xml_chardata(void *data, const XML_Char *s, int len) {
+       int old_len;
+       int new_len;
+       char *new_buffer;
+
+       old_len = migr_chardata_len;
+       new_len = old_len + len;
+       new_buffer = realloc(migr_chardata, new_len + 1);
+       if (new_buffer != NULL) {
+               memcpy(&new_buffer[old_len], s, len);
+               new_buffer[new_len] = 0;
+               migr_chardata = new_buffer;
+               migr_chardata_len = new_len;
+       }
+}
+
+
+void migr_xml_start(void *data, const char *el, const char **attr) {
+       int i;
+
+       /*** GENERAL STUFF ***/
+
+       /* Throw away any existing chardata */
+       if (migr_chardata != NULL) {
+               free(migr_chardata);
+               migr_chardata = NULL;
+               migr_chardata_len = 0;
+       }
+
+       if (!strcasecmp(el, "citadel_migrate_data")) {
+               ++citadel_migrate_data;
+
+               /* As soon as it looks like the input data is a genuine Citadel XML export,
+                * whack the existing database on disk to make room for the new one.
+                */
+               if (citadel_migrate_data == 1) {
+                       for (i = 0; i < MAXCDB; ++i) {
+                               cdb_trunc(i);
+                       }
+               }
+               return;
+       }
+
+       if (citadel_migrate_data != 1) {
+               CtdlLogPrintf(CTDL_ALERT, "Out-of-sequence tag <%s> detected.  Warning: ODD-DATA!\n");
+               return;
+       }
+
+       /* When we begin receiving XML for one of these record types, clear out the associated
+        * buffer so we don't accidentally carry over any data from a previous record.
+        */
+       if (!strcasecmp(el, "user"))                    memset(&usbuf, 0, sizeof (struct ctdluser));
+       else if (!strcasecmp(el, "openid"))             memset(openid_url, 0, sizeof openid_url);
+       else if (!strcasecmp(el, "room"))               memset(&qrbuf, 0, sizeof (struct ctdlroom));
+       else if (!strcasecmp(el, "room_messages"))      memset(FRname, 0, sizeof FRname);
+       else if (!strcasecmp(el, "floor"))              memset(&flbuf, 0, sizeof (struct floor));
+       else if (!strcasecmp(el, "visit"))              memset(&vbuf, 0, sizeof (struct visit));
+
+       else if (!strcasecmp(el, "message")) {
+               memset(&smi, 0, sizeof (struct MetaData));
+               import_msgnum = 0;
+               if (decoded_msg != NULL) {
+                       free(decoded_msg);
+                       decoded_msg = NULL;
+               }
+       }
+
+}
+
+
+void migr_xml_end(void *data, const char *el, const char **attr) {
+       char *ptr;
+       int msgcount = 0;
+       long msgnum = 0L;
+       long *msglist = NULL;
+       int msglist_alloc = 0;
+       int i;
+       int is_textual_seen = 0;
+       long msglen;
+       int len;
+
+       /*** GENERAL STUFF ***/
+
+       if (!strcasecmp(el, "citadel_migrate_data")) {
+               --citadel_migrate_data;
+               return;
+       }
+
+       if (citadel_migrate_data != 1) {
+               CtdlLogPrintf(CTDL_ALERT, "Out-of-sequence tag <%s> detected.  Warning: ODD-DATA!\n");
+               return;
+       }
+
+       if (migr_chardata == NULL) {            /* If NULL chardata, substitute an empty string instead. */
+               migr_chardata = strdup("");
+               migr_chardata_len = 0;
+       }
+
+       // CtdlLogPrintf(CTDL_DEBUG, "END TAG: <%s> DATA: <%s>\n", el, (migr_chardata_len ? migr_chardata : ""));
+
+       /*** CONFIG ***/
+
+       if (!strcasecmp(el, "config")) {
+               config.c_enable_fulltext = 0;   /* always disable */
+               put_config();
+               CtdlLogPrintf(CTDL_INFO, "Completed import of server configuration\n");
+       }
+
+       else if (!strcasecmp(el, "c_nodename"))                 safestrncpy(config.c_nodename, migr_chardata, sizeof config.c_nodename);
+       else if (!strcasecmp(el, "c_fqdn"))                     safestrncpy(config.c_fqdn, migr_chardata, sizeof config.c_fqdn);
+       else if (!strcasecmp(el, "c_humannode"))                safestrncpy(config.c_humannode, migr_chardata, sizeof config.c_humannode);
+       else if (!strcasecmp(el, "c_phonenum"))                 safestrncpy(config.c_phonenum, migr_chardata, sizeof config.c_phonenum);
+       else if (!strcasecmp(el, "c_ctdluid"))                  config.c_ctdluid = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_creataide"))                config.c_creataide = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_sleeping"))                 config.c_sleeping = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_initax"))                   config.c_initax = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_regiscall"))                config.c_regiscall = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_twitdetect"))               config.c_twitdetect = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_twitroom"))                 safestrncpy(config.c_twitroom, migr_chardata, sizeof config.c_twitroom);
+       else if (!strcasecmp(el, "c_moreprompt"))               safestrncpy(config.c_moreprompt, migr_chardata, sizeof config.c_moreprompt);
+       else if (!strcasecmp(el, "c_restrict"))                 config.c_restrict = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_site_location"))            safestrncpy(config.c_site_location, migr_chardata, sizeof config.c_site_location);
+       else if (!strcasecmp(el, "c_sysadm"))                   safestrncpy(config.c_sysadm, migr_chardata, sizeof config.c_sysadm);
+       else if (!strcasecmp(el, "c_setup_level"))              config.c_setup_level = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_maxsessions"))              config.c_maxsessions = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_ip_addr"))                  safestrncpy(config.c_ip_addr, migr_chardata, sizeof config.c_ip_addr);
+       else if (!strcasecmp(el, "c_port_number"))              config.c_port_number = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_ep_expire_mode"))           config.c_ep.expire_mode = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_ep_expire_value"))          config.c_ep.expire_value = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_userpurge"))                config.c_userpurge = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_roompurge"))                config.c_roompurge = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_logpages"))                 safestrncpy(config.c_logpages, migr_chardata, sizeof config.c_logpages);
+       else if (!strcasecmp(el, "c_createax"))                 config.c_createax = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_maxmsglen"))                config.c_maxmsglen = atol(migr_chardata);
+       else if (!strcasecmp(el, "c_min_workers"))              config.c_min_workers = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_max_workers"))              config.c_max_workers = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_pop3_port"))                config.c_pop3_port = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_smtp_port"))                config.c_smtp_port = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_rfc822_strict_from"))       config.c_rfc822_strict_from = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_aide_zap"))                 config.c_aide_zap = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_imap_port"))                config.c_imap_port = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_net_freq"))                 config.c_net_freq = atol(migr_chardata);
+       else if (!strcasecmp(el, "c_disable_newu"))             config.c_disable_newu = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_enable_fulltext"))          config.c_enable_fulltext = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_baseroom"))                 safestrncpy(config.c_baseroom, migr_chardata, sizeof config.c_baseroom);
+       else if (!strcasecmp(el, "c_aideroom"))                 safestrncpy(config.c_aideroom, migr_chardata, sizeof config.c_aideroom);
+       else if (!strcasecmp(el, "c_purge_hour"))               config.c_purge_hour = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_mbxep_expire_mode"))        config.c_mbxep.expire_mode = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_mbxep_expire_value"))       config.c_mbxep.expire_value = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_ldap_host"))                safestrncpy(config.c_ldap_host, migr_chardata, sizeof config.c_ldap_host);
+       else if (!strcasecmp(el, "c_ldap_port"))                config.c_ldap_port = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_ldap_base_dn"))             safestrncpy(config.c_ldap_base_dn, migr_chardata, sizeof config.c_ldap_base_dn);
+       else if (!strcasecmp(el, "c_ldap_bind_dn"))             safestrncpy(config.c_ldap_bind_dn, migr_chardata, sizeof config.c_ldap_bind_dn);
+       else if (!strcasecmp(el, "c_ldap_bind_pw"))             safestrncpy(config.c_ldap_bind_pw, migr_chardata, sizeof config.c_ldap_bind_pw);
+       else if (!strcasecmp(el, "c_msa_port"))                 config.c_msa_port = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_imaps_port"))               config.c_imaps_port = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_pop3s_port"))               config.c_pop3s_port = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_smtps_port"))               config.c_smtps_port = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_auto_cull"))                config.c_auto_cull = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_instant_expunge"))          config.c_instant_expunge = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_allow_spoofing"))           config.c_allow_spoofing = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_journal_email"))            config.c_journal_email = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_journal_pubmsgs"))          config.c_journal_pubmsgs = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_journal_dest"))             safestrncpy(config.c_journal_dest, migr_chardata, sizeof config.c_journal_dest);
+       else if (!strcasecmp(el, "c_default_cal_zone"))         safestrncpy(config.c_default_cal_zone, migr_chardata, sizeof config.c_default_cal_zone);
+       else if (!strcasecmp(el, "c_pftcpdict_port"))           config.c_pftcpdict_port = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_managesieve_port"))         config.c_managesieve_port = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_auth_mode"))                config.c_auth_mode = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_funambol_host"))            safestrncpy(config.c_funambol_host, migr_chardata, sizeof config.c_funambol_host);
+       else if (!strcasecmp(el, "c_funambol_port"))            config.c_funambol_port = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_funambol_source"))          safestrncpy(config.c_funambol_source, migr_chardata, sizeof config.c_funambol_source);
+       else if (!strcasecmp(el, "c_funambol_auth"))            safestrncpy(config.c_funambol_auth, migr_chardata, sizeof config.c_funambol_auth);
+       else if (!strcasecmp(el, "c_rbl_at_greeting"))          config.c_rbl_at_greeting = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_master_user"))              safestrncpy(config.c_master_user, migr_chardata, sizeof config.c_master_user);
+       else if (!strcasecmp(el, "c_master_pass"))              safestrncpy(config.c_master_pass, migr_chardata, sizeof config.c_master_pass);
+       else if (!strcasecmp(el, "c_pager_program"))            safestrncpy(config.c_pager_program, migr_chardata, sizeof config.c_pager_program);
+       else if (!strcasecmp(el, "c_imap_keep_from"))           config.c_imap_keep_from = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_xmpp_c2s_port"))            config.c_xmpp_c2s_port = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_xmpp_s2s_port"))            config.c_xmpp_s2s_port = atoi(migr_chardata);
+       else if (!strcasecmp(el, "c_pop3_fetch"))               config.c_pop3_fetch = atol(migr_chardata);
+       else if (!strcasecmp(el, "c_pop3_fastest"))             config.c_pop3_fastest = atol(migr_chardata);
+       else if (!strcasecmp(el, "c_spam_flag_only"))           config.c_spam_flag_only = atoi(migr_chardata);
+
+       /*** CONTROL ***/
+
+       else if (!strcasecmp(el, "control_highest"))            CitControl.MMhighest = atol(migr_chardata);
+       else if (!strcasecmp(el, "control_flags"))              CitControl.MMflags = atoi(migr_chardata);
+       else if (!strcasecmp(el, "control_nextuser"))           CitControl.MMnextuser = atol(migr_chardata);
+       else if (!strcasecmp(el, "control_nextroom"))           CitControl.MMnextroom = atol(migr_chardata);
+       else if (!strcasecmp(el, "control_version"))            CitControl.version = atoi(migr_chardata);
+
+       else if (!strcasecmp(el, "control")) {
+               CitControl.MMfulltext = (-1L);  /* always flush */
+               put_control();
+               CtdlLogPrintf(CTDL_INFO, "Completed import of control record\n");
+       }
+
+       /*** USER ***/
+
+       else if (!strcasecmp(el, "u_version"))                  usbuf.version = atoi(migr_chardata);
+       else if (!strcasecmp(el, "u_uid"))                      usbuf.uid = atol(migr_chardata);
+       else if (!strcasecmp(el, "u_password"))                 safestrncpy(usbuf.password, migr_chardata, sizeof usbuf.password);
+       else if (!strcasecmp(el, "u_flags"))                    usbuf.flags = atoi(migr_chardata);
+       else if (!strcasecmp(el, "u_timescalled"))              usbuf.timescalled = atol(migr_chardata);
+       else if (!strcasecmp(el, "u_posted"))                   usbuf.posted = atol(migr_chardata);
+       else if (!strcasecmp(el, "u_axlevel"))                  usbuf.axlevel = atoi(migr_chardata);
+       else if (!strcasecmp(el, "u_usernum"))                  usbuf.usernum = atol(migr_chardata);
+       else if (!strcasecmp(el, "u_lastcall"))                 usbuf.lastcall = atol(migr_chardata);
+       else if (!strcasecmp(el, "u_USuserpurge"))              usbuf.USuserpurge = atoi(migr_chardata);
+       else if (!strcasecmp(el, "u_fullname"))                 safestrncpy(usbuf.fullname, migr_chardata, sizeof usbuf.fullname);
+
+       else if (!strcasecmp(el, "user")) {
+               putuser(&usbuf);
+               CtdlLogPrintf(CTDL_INFO, "Imported user: %s\n", usbuf.fullname);
+       }
+
+       /*** OPENID ***/
+
+       else if (!strcasecmp(el, "oid_url"))                    safestrncpy(openid_url, migr_chardata, sizeof openid_url);
+       else if (!strcasecmp(el, "oid_usernum"))                openid_usernum = atol(migr_chardata);
+
+       else if (!strcasecmp(el, "openid")) {                   /* see serv_openid_rp.c for a description of the record format */
+               char *oid_data;
+               int oid_data_len;
+               oid_data_len = sizeof(long) + strlen(openid_url) + 1;
+               oid_data = malloc(oid_data_len);
+               memcpy(oid_data, &openid_usernum, sizeof(long));
+               memcpy(&oid_data[sizeof(long)], openid_url, strlen(openid_url) + 1);
+               cdb_store(CDB_OPENID, openid_url, strlen(openid_url), oid_data, oid_data_len);
+               free(oid_data);
+               CtdlLogPrintf(CTDL_INFO, "Imported OpenID: %s (%ld)\n", openid_url, openid_usernum);
+       }
+
+       /*** ROOM ***/
+
+       else if (!strcasecmp(el, "QRname"))                     safestrncpy(qrbuf.QRname, migr_chardata, sizeof qrbuf.QRname);
+       else if (!strcasecmp(el, "QRpasswd"))                   safestrncpy(qrbuf.QRpasswd, migr_chardata, sizeof qrbuf.QRpasswd);
+       else if (!strcasecmp(el, "QRroomaide"))                 qrbuf.QRroomaide = atol(migr_chardata);
+       else if (!strcasecmp(el, "QRhighest"))                  qrbuf.QRhighest = atol(migr_chardata);
+       else if (!strcasecmp(el, "QRgen"))                      qrbuf.QRgen = atol(migr_chardata);
+       else if (!strcasecmp(el, "QRflags"))                    qrbuf.QRflags = atoi(migr_chardata);
+       else if (!strcasecmp(el, "QRdirname"))                  safestrncpy(qrbuf.QRdirname, migr_chardata, sizeof qrbuf.QRdirname);
+       else if (!strcasecmp(el, "QRinfo"))                     qrbuf.QRinfo = atol(migr_chardata);
+       else if (!strcasecmp(el, "QRfloor"))                    qrbuf.QRfloor = atoi(migr_chardata);
+       else if (!strcasecmp(el, "QRmtime"))                    qrbuf.QRmtime = atol(migr_chardata);
+       else if (!strcasecmp(el, "QRexpire_mode"))              qrbuf.QRep.expire_mode = atoi(migr_chardata);
+       else if (!strcasecmp(el, "QRexpire_value"))             qrbuf.QRep.expire_value = atoi(migr_chardata);
+       else if (!strcasecmp(el, "QRnumber"))                   qrbuf.QRnumber = atol(migr_chardata);
+       else if (!strcasecmp(el, "QRorder"))                    qrbuf.QRorder = atoi(migr_chardata);
+       else if (!strcasecmp(el, "QRflags2"))                   qrbuf.QRflags2 = atoi(migr_chardata);
+       else if (!strcasecmp(el, "QRdefaultview"))              qrbuf.QRdefaultview = atoi(migr_chardata);
+
+       else if (!strcasecmp(el, "room")) {
+               putroom(&qrbuf);
+               CtdlLogPrintf(CTDL_INFO, "Imported room: %s\n", qrbuf.QRname);
+       }
+
+       /*** ROOM MESSAGE POINTERS ***/
+
+       else if (!strcasecmp(el, "FRname"))                     safestrncpy(FRname, migr_chardata, sizeof FRname);
+
+       else if (!strcasecmp(el, "FRmsglist")) {
+               if (!IsEmptyStr(FRname)) {
+                       msgcount = 0;
+                       msglist_alloc = 1000;
+                       msglist = malloc(sizeof(long) * msglist_alloc);
+
+                       CtdlLogPrintf(CTDL_DEBUG, "Message list for: %s\n", FRname);
+
+                       ptr = migr_chardata;
+                       while (*ptr != 0) {
+                               while ((*ptr != 0) && (!isdigit(*ptr))) {
+                                       ++ptr;
+                               }
+                               if ((*ptr != 0) && (isdigit(*ptr))) {
+                                       msgnum = atol(ptr);
+                                       if (msgnum > 0L) {
+                                               if (msgcount >= msglist_alloc) {
+                                                       msglist_alloc *= 2;
+                                                       msglist = realloc(msglist, sizeof(long) * msglist_alloc);
+                                               }
+                                               msglist[msgcount++] = msgnum;
+                                               }
+                                       }
+                                       while ((*ptr != 0) && (isdigit(*ptr))) {
+                                               ++ptr;
+                                       }
+                               }
+                       }
+                       if (msgcount > 0) {
+                               CtdlSaveMsgPointersInRoom(FRname, msglist, msgcount, 0, NULL);
+                       }
+                       free(msglist);
+                       msglist = NULL;
+                       msglist_alloc = 0;
+                       CtdlLogPrintf(CTDL_DEBUG, "Imported %d messages.\n", msgcount);
+                       if (CtdlThreadCheckStop()) {
+                               return;
+               }
+       }
+
+       /*** FLOORS ***/
+
+       else if (!strcasecmp(el, "f_num"))                      floornum = atoi(migr_chardata);
+       else if (!strcasecmp(el, "f_flags"))                    flbuf.f_flags = atoi(migr_chardata);
+       else if (!strcasecmp(el, "f_name"))                     safestrncpy(flbuf.f_name, migr_chardata, sizeof flbuf.f_name);
+       else if (!strcasecmp(el, "f_ref_count"))                flbuf.f_ref_count = atoi(migr_chardata);
+       else if (!strcasecmp(el, "f_ep_expire_mode"))           flbuf.f_ep.expire_mode = atoi(migr_chardata);
+       else if (!strcasecmp(el, "f_ep_expire_value"))          flbuf.f_ep.expire_value = atoi(migr_chardata);
+
+       else if (!strcasecmp(el, "floor")) {
+               putfloor(&flbuf, floornum);
+               CtdlLogPrintf(CTDL_INFO, "Imported floor #%d (%s)\n", floornum, flbuf.f_name);
+       }
+
+       /*** VISITS ***/
+
+       else if (!strcasecmp(el, "v_roomnum"))                  vbuf.v_roomnum = atol(migr_chardata);
+       else if (!strcasecmp(el, "v_roomgen"))                  vbuf.v_roomgen = atol(migr_chardata);
+       else if (!strcasecmp(el, "v_usernum"))                  vbuf.v_usernum = atol(migr_chardata);
+
+       else if (!strcasecmp(el, "v_seen")) {
+               vbuf.v_lastseen = atol(migr_chardata);
+               is_textual_seen = 0;
+               for (i=0; migr_chardata[i]; ++i) if (!isdigit(migr_chardata[i])) is_textual_seen = 1;
+               if (is_textual_seen)                            safestrncpy(vbuf.v_seen, migr_chardata, sizeof vbuf.v_seen);
+       }
+
+       else if (!strcasecmp(el, "v_answered"))                 safestrncpy(vbuf.v_answered, migr_chardata, sizeof vbuf.v_answered);
+       else if (!strcasecmp(el, "v_flags"))                    vbuf.v_flags = atoi(migr_chardata);
+       else if (!strcasecmp(el, "v_view"))                     vbuf.v_view = atoi(migr_chardata);
+
+       else if (!strcasecmp(el, "visit")) {
+               put_visit(&vbuf);
+               CtdlLogPrintf(CTDL_INFO, "Imported visit: %ld/%ld/%ld\n", vbuf.v_roomnum, vbuf.v_roomgen, vbuf.v_usernum);
+       }
+
+       /*** MESSAGES ***/
+
+       else if (!strcasecmp(el, "msg_msgnum"))                 import_msgnum = atol(migr_chardata);
+       else if (!strcasecmp(el, "msg_meta_refcount"))          smi.meta_refcount = atoi(migr_chardata);
+       else if (!strcasecmp(el, "msg_meta_content_type"))      safestrncpy(smi.meta_content_type, migr_chardata, sizeof smi.meta_content_type);
+
+       else if (!strcasecmp(el, "msg_text")) {
+               if (decoded_msg != NULL) {
+                       free(decoded_msg);
+               }
+               len = strlen(migr_chardata);
+               decoded_msg = malloc(len);
+               msglen = CtdlDecodeBase64(decoded_msg, migr_chardata, len);
+               cdb_store(CDB_MSGMAIN, &import_msgnum, sizeof(long), decoded_msg, msglen);
+               free(decoded_msg);
+               decoded_msg = NULL;
+               PutMetaData(&smi);
+               CtdlLogPrintf(CTDL_INFO, "Imported message #%ld, size=%ld, refcount=%d, content-type: %s\n",
+                       import_msgnum, msglen, smi.meta_refcount, smi.meta_content_type);
+       }
+
+       /*** MORE GENERAL STUFF ***/
+
+       if (migr_chardata != NULL) {
+               free(migr_chardata);
+               migr_chardata = NULL;
+               migr_chardata_len = 0;
+       }
+}
+
+
+
+
+/*
+ * Import begins here
+ */
+void migr_do_import(void) {
+       char buf[SIZ];
+       XML_Parser xp;
+       int linelen;
+       
+       unbuffer_output();
+
+       xp = XML_ParserCreate(NULL);
+       if (!xp) {
+               cprintf("%d Failed to create XML parser instance\n", ERROR+INTERNAL_ERROR);
+               return;
+       }
+       XML_SetElementHandler(xp, migr_xml_start, migr_xml_end);
+       XML_SetCharacterDataHandler(xp, migr_xml_chardata);
+
+       CC->dont_term = 1;
+
+       cprintf("%d sock it to me\n", SEND_LISTING);
+       unbuffer_output();
+
+       while (client_getln(buf, sizeof buf) >= 0 && strcmp(buf, "000")) {
+               linelen = strlen(buf);
+               strcpy(&buf[linelen++], "\n");
+
+               if (CtdlThreadCheckStop())
+                       break;  // Should we break or return?
+               
+               if (buf[0] == '\0')
+                       continue;
+
+               XML_Parse(xp, buf, linelen, 0);
+       }
+
+       XML_Parse(xp, "", 0, 1);
+       XML_ParserFree(xp);
+       
+       rebuild_euid_index();
+       rebuild_usersbynumber();
+       CC->dont_term = 0;
+}
+
+
+
+/*
+ * Common code appears in this section
+ */
+
+
+void cmd_migr(char *cmdbuf) {
+       char cmd[32];
+       
+       if (CtdlAccessCheck(ac_internal)) return;
+       
+       if (CtdlTrySingleUser())
+       {
+               CtdlMakeTempFileName(migr_tempfilename1, sizeof migr_tempfilename1);
+               CtdlMakeTempFileName(migr_tempfilename2, sizeof migr_tempfilename2);
+
+               extract_token(cmd, cmdbuf, 0, '|', sizeof cmd);
+               if (!strcasecmp(cmd, "export")) {
+                       migr_do_export();
+               }
+               else if (!strcasecmp(cmd, "import")) {
+                       migr_do_import();
+               }
+               else {
+                       cprintf("%d illegal command\n", ERROR + ILLEGAL_VALUE);
+               }
+
+               unlink(migr_tempfilename1);
+               unlink(migr_tempfilename2);
+               
+               CtdlEndSingleUser();
+       }
+       else
+       {
+               cprintf("%d The migrator is already running.\n", ERROR + RESOURCE_BUSY);
+       }
+}
+
+
+CTDL_MODULE_INIT(migrate)
+{
+       if (!threading)
+       {
+               CtdlRegisterProtoHook(cmd_migr, "MIGR", "Across-the-wire migration");
+               CtdlRegisterProtoHook(cmd_migr, "ARTV", "Across-the-wire migration (legacy calling syntax)"
+       }
+       
+       /* return our Subversion id for the Log */
+       return "$Id: serv_migrate.c 7274 2009-03-27 15:11:14Z ajc $";
+}