d60da3e1eb0c182c2ef44f9152c403950bc4094a
[citadel.git] / citadel / modules / migrate / serv_migrate.c
1 /*
2  * This module dumps and/or loads the Citadel database in XML format.
3  *
4  * Copyright (c) 1987-2012 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 #include "sysdep.h"
16 #include <stdlib.h>
17 #include <unistd.h>
18 #include <stdio.h>
19 #include <fcntl.h>
20 #include <signal.h>
21 #include <pwd.h>
22 #include <errno.h>
23 #include <sys/types.h>
24
25 #if TIME_WITH_SYS_TIME
26 # include <sys/time.h>
27 # include <time.h>
28 #else
29 # if HAVE_SYS_TIME_H
30 #  include <sys/time.h>
31 # else
32 #  include <time.h>
33 # endif
34 #endif
35
36 #include <sys/wait.h>
37 #include <string.h>
38 #include <ctype.h>
39 #include <limits.h>
40 #include <expat.h>
41 #include <libcitadel.h>
42 #include "citadel.h"
43 #include "server.h"
44 #include "citserver.h"
45 #include "support.h"
46 #include "config.h"
47 #include "database.h"
48 #include "msgbase.h"
49 #include "user_ops.h"
50 #include "control.h"
51 #include "euidindex.h"
52 #include "ctdl_module.h"
53
54 #define END_OF_MESSAGE  "---eom---dbd---"
55
56 char migr_tempfilename1[PATH_MAX];
57 char migr_tempfilename2[PATH_MAX];
58 FILE *migr_global_message_list;
59
60
61 /*
62  * Code which implements the export appears in this section
63  */
64
65 /*
66  * Output a string to the client with these characters escaped:  & < >
67  */
68 void xml_strout(char *str) {
69
70         char *c = str;
71
72         while (*c != 0) {
73                 if (*c == '\"') {
74                         client_write("&quot;", 6);
75                 }
76                 else if (*c == '\'') {
77                         client_write("&apos;", 6);
78                 }
79                 else if (*c == '<') {
80                         client_write("&lt;", 4);
81                 }
82                 else if (*c == '>') {
83                         client_write("&gt;", 4);
84                 }
85                 else if (*c == '&') {
86                         client_write("&amp;", 5);
87                 }
88                 else {
89                         client_write(c, 1);
90                 }
91                 ++c;
92         }
93 }
94
95
96 /*
97  * Export a user record as XML
98  */
99 void migr_export_users_backend(struct ctdluser *buf, void *data) {
100         client_write("<user>\n", 7);
101         cprintf("<u_version>%d</u_version>\n", buf->version);
102         cprintf("<u_uid>%ld</u_uid>\n", (long)buf->uid);
103         client_write("<u_password>", 12);       xml_strout(buf->password);              client_write("</u_password>\n", 14);
104         cprintf("<u_flags>%u</u_flags>\n", buf->flags);
105         cprintf("<u_timescalled>%ld</u_timescalled>\n", buf->timescalled);
106         cprintf("<u_posted>%ld</u_posted>\n", buf->posted);
107         cprintf("<u_axlevel>%d</u_axlevel>\n", buf->axlevel);
108         cprintf("<u_usernum>%ld</u_usernum>\n", buf->usernum);
109         cprintf("<u_lastcall>%ld</u_lastcall>\n", (long)buf->lastcall);
110         cprintf("<u_USuserpurge>%d</u_USuserpurge>\n", buf->USuserpurge);
111         client_write("<u_fullname>", 12);       xml_strout(buf->fullname);              client_write("</u_fullname>\n", 14);
112         client_write("</user>\n", 8);
113 }
114
115
116 void migr_export_users(void) {
117         ForEachUser(migr_export_users_backend, NULL);
118 }
119
120
121 void migr_export_room_msg(long msgnum, void *userdata) {
122         cprintf("%ld\n", msgnum);
123         fprintf(migr_global_message_list, "%ld\n", msgnum);
124 }
125
126
127 void migr_export_rooms_backend(struct ctdlroom *buf, void *data) {
128         client_write("<room>\n", 7);
129         client_write("<QRname>", 8);    xml_strout(buf->QRname);        client_write("</QRname>\n", 10);
130         client_write("<QRpasswd>", 10); xml_strout(buf->QRpasswd);      client_write("</QRpasswd>\n", 12);
131         cprintf("<QRroomaide>%ld</QRroomaide>\n", buf->QRroomaide);
132         cprintf("<QRhighest>%ld</QRhighest>\n", buf->QRhighest);
133         cprintf("<QRgen>%ld</QRgen>\n", (long)buf->QRgen);
134         cprintf("<QRflags>%u</QRflags>\n", buf->QRflags);
135         if (buf->QRflags & QR_DIRECTORY) {
136                 client_write("<QRdirname>", 11);
137                 xml_strout(buf->QRdirname);
138                 client_write("</QRdirname>\n", 13);
139         }
140         cprintf("<QRinfo>%ld</QRinfo>\n", buf->QRinfo);
141         cprintf("<QRfloor>%d</QRfloor>\n", buf->QRfloor);
142         cprintf("<QRmtime>%ld</QRmtime>\n", (long)buf->QRmtime);
143         cprintf("<QRexpire_mode>%d</QRexpire_mode>\n", buf->QRep.expire_mode);
144         cprintf("<QRexpire_value>%d</QRexpire_value>\n", buf->QRep.expire_value);
145         cprintf("<QRnumber>%ld</QRnumber>\n", buf->QRnumber);
146         cprintf("<QRorder>%d</QRorder>\n", buf->QRorder);
147         cprintf("<QRflags2>%u</QRflags2>\n", buf->QRflags2);
148         cprintf("<QRdefaultview>%d</QRdefaultview>\n", buf->QRdefaultview);
149         client_write("</room>\n", 8);
150
151         /* message list goes inside this tag */
152
153         CtdlGetRoom(&CC->room, buf->QRname);
154         client_write("<room_messages>", 15);
155         client_write("<FRname>", 8);    xml_strout(CC->room.QRname);    client_write("</FRname>\n", 10);
156         client_write("<FRmsglist>", 11);
157         CtdlForEachMessage(MSGS_ALL, 0L, NULL, NULL, NULL, migr_export_room_msg, NULL);
158         client_write("</FRmsglist>\n", 13);
159         client_write("</room_messages>\n", 17);
160
161
162 }
163
164
165 void migr_export_rooms(void) {
166         char cmd[SIZ];
167         migr_global_message_list = fopen(migr_tempfilename1, "w");
168         if (migr_global_message_list != NULL) {
169                 CtdlForEachRoom(migr_export_rooms_backend, NULL);
170                 fclose(migr_global_message_list);
171         }
172
173         /*
174          * Process the 'global' message list.  (Sort it and remove dups.
175          * Dups are ok because a message may be in more than one room, but
176          * this will be handled by exporting the reference count, not by
177          * exporting the message multiple times.)
178          */
179         snprintf(cmd, sizeof cmd, "sort -n <%s >%s", migr_tempfilename1, migr_tempfilename2);
180         if (system(cmd) != 0) syslog(LOG_ALERT, "Error %d\n", errno);
181         snprintf(cmd, sizeof cmd, "uniq <%s >%s", migr_tempfilename2, migr_tempfilename1);
182         if (system(cmd) != 0) syslog(LOG_ALERT, "Error %d\n", errno);
183 }
184
185
186 void migr_export_floors(void) {
187         struct floor qfbuf, *buf;
188         int i;
189
190         for (i=0; i < MAXFLOORS; ++i) {
191                 client_write("<floor>\n", 8);
192                 cprintf("<f_num>%d</f_num>\n", i);
193                 CtdlGetFloor(&qfbuf, i);
194                 buf = &qfbuf;
195                 cprintf("<f_flags>%u</f_flags>\n", buf->f_flags);
196                 client_write("<f_name>", 8); xml_strout(buf->f_name); client_write("</f_name>\n", 10);
197                 cprintf("<f_ref_count>%d</f_ref_count>\n", buf->f_ref_count);
198                 cprintf("<f_ep_expire_mode>%d</f_ep_expire_mode>\n", buf->f_ep.expire_mode);
199                 cprintf("<f_ep_expire_value>%d</f_ep_expire_value>\n", buf->f_ep.expire_value);
200                 client_write("</floor>\n", 9);
201         }
202 }
203
204
205 /*
206  * Return nonzero if the supplied string contains only characters which are valid in a sequence set.
207  */
208 int is_sequence_set(char *s) {
209         if (!s) return(0);
210
211         char *c = s;
212         char ch;
213         while (ch = *c++, ch) {
214                 if (!strchr("0123456789*,:", ch)) {
215                         return(0);
216                 }
217         }
218         return(1);
219 }
220
221
222
223 /* 
224  *  Traverse the visits file...
225  */
226 void migr_export_visits(void) {
227         visit vbuf;
228         struct cdbdata *cdbv;
229
230         cdb_rewind(CDB_VISIT);
231
232         while (cdbv = cdb_next_item(CDB_VISIT), cdbv != NULL) {
233                 memset(&vbuf, 0, sizeof(visit));
234                 memcpy(&vbuf, cdbv->ptr,
235                        ((cdbv->len > sizeof(visit)) ?
236                         sizeof(visit) : cdbv->len));
237                 cdb_free(cdbv);
238
239                 client_write("<visit>\n", 8);
240                 cprintf("<v_roomnum>%ld</v_roomnum>\n", vbuf.v_roomnum);
241                 cprintf("<v_roomgen>%ld</v_roomgen>\n", vbuf.v_roomgen);
242                 cprintf("<v_usernum>%ld</v_usernum>\n", vbuf.v_usernum);
243
244                 client_write("<v_seen>", 8);
245                 if ( (!IsEmptyStr(vbuf.v_seen)) && (is_sequence_set(vbuf.v_seen)) ) {
246                         xml_strout(vbuf.v_seen);
247                 }
248                 else {
249                         cprintf("%ld", vbuf.v_lastseen);
250                 }
251                 client_write("</v_seen>", 9);
252
253                 if ( (!IsEmptyStr(vbuf.v_answered)) && (is_sequence_set(vbuf.v_answered)) ) {
254                         client_write("<v_answered>", 12);
255                         xml_strout(vbuf.v_answered);
256                         client_write("</v_answered>\n", 14);
257                 }
258
259                 cprintf("<v_flags>%u</v_flags>\n", vbuf.v_flags);
260                 cprintf("<v_view>%d</v_view>\n", vbuf.v_view);
261                 client_write("</visit>\n", 9);
262         }
263 }
264
265
266 void migr_export_message(long msgnum) {
267         struct MetaData smi;
268         struct CtdlMessage *msg;
269         struct ser_ret smr;
270
271         /* We can use a static buffer here because there will never be more than
272          * one of this operation happening at any given time, and it's really best
273          * to just keep it allocated once instead of torturing malloc/free.
274          * Call this function with msgnum "-1" to free the buffer when finished.
275          */
276         static int encoded_alloc = 0;
277         static char *encoded_msg = NULL;
278
279         if (msgnum < 0) {
280                 if ((encoded_alloc == 0) && (encoded_msg != NULL)) {
281                         free(encoded_msg);
282                         encoded_alloc = 0;
283                         encoded_msg = NULL;
284                 }
285                 return;
286         }
287
288         /* Ok, here we go ... */
289
290         msg = CtdlFetchMessage(msgnum, 1);
291         if (msg == NULL) return;        /* fail silently */
292
293         client_write("<message>\n", 10);
294         GetMetaData(&smi, msgnum);
295         cprintf("<msg_msgnum>%ld</msg_msgnum>\n", msgnum);
296         cprintf("<msg_meta_refcount>%d</msg_meta_refcount>\n", smi.meta_refcount);
297         client_write("<msg_meta_content_type>", 23); xml_strout(smi.meta_content_type); client_write("</msg_meta_content_type>\n", 25);
298
299         client_write("<msg_text>", 10);
300         CtdlSerializeMessage(&smr, msg);
301         CM_Free(msg);
302
303         /* Predict the buffer size we need.  Expand the buffer if necessary. */
304         int encoded_len = smr.len * 15 / 10 ;
305         if (encoded_len > encoded_alloc) {
306                 encoded_alloc = encoded_len;
307                 encoded_msg = realloc(encoded_msg, encoded_alloc);
308         }
309
310         if (encoded_msg == NULL) {
311                 /* Questionable hack that hopes it'll work next time and we only lose one message */
312                 encoded_alloc = 0;
313         }
314         else {
315                 /* Once we do the encoding we know the exact size */
316                 encoded_len = CtdlEncodeBase64(encoded_msg, (char *)smr.ser, smr.len, 1);
317                 client_write(encoded_msg, encoded_len);
318         }
319
320         free(smr.ser);
321
322         client_write("</msg_text>\n", 12);
323         client_write("</message>\n", 11);
324 }
325
326
327
328 void migr_export_openids(void) {
329         struct cdbdata *cdboi;
330         long usernum;
331         char url[512];
332
333         cdb_rewind(CDB_OPENID);
334         while (cdboi = cdb_next_item(CDB_OPENID), cdboi != NULL) {
335                 if (cdboi->len > sizeof(long)) {
336                         client_write("<openid>\n", 9);
337                         memcpy(&usernum, cdboi->ptr, sizeof(long));
338                         snprintf(url, sizeof url, "%s", (cdboi->ptr)+sizeof(long) );
339                         client_write("<oid_url>", 9);
340                         xml_strout(url);
341                         client_write("</oid_url>\n", 11);
342                         cprintf("<oid_usernum>%ld</oid_usernum>\n", usernum);
343                         client_write("</openid>\n", 10);
344                 }
345                 cdb_free(cdboi);
346         }
347 }
348
349
350
351
352 void migr_export_messages(void) {
353         char buf[SIZ];
354         long msgnum;
355         int count = 0;
356         CitContext *Ctx;
357
358         Ctx = CC;
359         migr_global_message_list = fopen(migr_tempfilename1, "r");
360         if (migr_global_message_list != NULL) {
361                 syslog(LOG_INFO, "Opened %s\n", migr_tempfilename1);
362                 while ((Ctx->kill_me == 0) && 
363                        (fgets(buf, sizeof(buf), migr_global_message_list) != NULL)) {
364                         msgnum = atol(buf);
365                         if (msgnum > 0L) {
366                                 migr_export_message(msgnum);
367                                 ++count;
368                         }
369                 }
370                 fclose(migr_global_message_list);
371         }
372         if (Ctx->kill_me == 0)
373                 syslog(LOG_INFO, "Exported %d messages.\n", count);
374         else
375                 syslog(LOG_ERR, "Export aborted due to client disconnect! \n");
376
377         migr_export_message(-1L);       /* This frees the encoding buffer */
378 }
379
380
381
382 void migr_do_export(void) {
383         CitContext *Ctx;
384
385         Ctx = CC;
386         cprintf("%d Exporting all Citadel databases.\n", LISTING_FOLLOWS);
387         Ctx->dont_term = 1;
388
389         client_write("<?xml version=\"1.0\" encoding=\"UTF-8\" ?>\n", 40);
390         client_write("<citadel_migrate_data>\n", 23);
391         cprintf("<version>%d</version>\n", REV_LEVEL);
392
393         /* export the config file (this is done using x-macros) */
394         client_write("<config>\n", 9);
395         client_write("<c_nodename>", 12);       xml_strout(config.c_nodename);          client_write("</c_nodename>\n", 14);
396         client_write("<c_fqdn>", 8);            xml_strout(config.c_fqdn);              client_write("</c_fqdn>\n", 10);
397         client_write("<c_humannode>", 13);      xml_strout(config.c_humannode);         client_write("</c_humannode>\n", 15);
398         client_write("<c_phonenum>", 12);       xml_strout(config.c_phonenum);          client_write("</c_phonenum>\n", 14);
399         cprintf("<c_ctdluid>%d</c_ctdluid>\n", config.c_ctdluid);
400         cprintf("<c_creataide>%d</c_creataide>\n", config.c_creataide);
401         cprintf("<c_sleeping>%d</c_sleeping>\n", config.c_sleeping);
402         cprintf("<c_initax>%d</c_initax>\n", config.c_initax);
403         cprintf("<c_regiscall>%d</c_regiscall>\n", config.c_regiscall);
404         cprintf("<c_twitdetect>%d</c_twitdetect>\n", config.c_twitdetect);
405         client_write("<c_twitroom>", 12);       xml_strout(config.c_twitroom);          client_write("</c_twitroom>\n", 14);
406         client_write("<c_moreprompt>", 14);     xml_strout(config.c_moreprompt);        client_write("</c_moreprompt>\n", 16);
407         cprintf("<c_restrict>%d</c_restrict>\n", config.c_restrict);
408         client_write("<c_site_location>", 17);  xml_strout(config.c_site_location);     client_write("</c_site_location>\n", 19);
409         client_write("<c_sysadm>", 10);         xml_strout(config.c_sysadm);            client_write("</c_sysadm>\n", 12);
410         cprintf("<c_maxsessions>%d</c_maxsessions>\n", config.c_maxsessions);
411         client_write("<c_ip_addr>", 11);        xml_strout(config.c_ip_addr);           client_write("</c_ip_addr>\n", 13);
412         cprintf("<c_port_number>%d</c_port_number>\n", config.c_port_number);
413         cprintf("<c_ep_expire_mode>%d</c_ep_expire_mode>\n", config.c_ep.expire_mode);
414         cprintf("<c_ep_expire_value>%d</c_ep_expire_value>\n", config.c_ep.expire_value);
415         cprintf("<c_userpurge>%d</c_userpurge>\n", config.c_userpurge);
416         cprintf("<c_roompurge>%d</c_roompurge>\n", config.c_roompurge);
417         client_write("<c_logpages>", 12);       xml_strout(config.c_logpages);          client_write("</c_logpages>\n", 14);
418         cprintf("<c_createax>%d</c_createax>\n", config.c_createax);
419         cprintf("<c_maxmsglen>%ld</c_maxmsglen>\n", config.c_maxmsglen);
420         cprintf("<c_min_workers>%d</c_min_workers>\n", config.c_min_workers);
421         cprintf("<c_max_workers>%d</c_max_workers>\n", config.c_max_workers);
422         cprintf("<c_pop3_port>%d</c_pop3_port>\n", config.c_pop3_port);
423         cprintf("<c_smtp_port>%d</c_smtp_port>\n", config.c_smtp_port);
424         cprintf("<c_rfc822_strict_from>%d</c_rfc822_strict_from>\n", config.c_rfc822_strict_from);
425         cprintf("<c_aide_zap>%d</c_aide_zap>\n", config.c_aide_zap);
426         cprintf("<c_imap_port>%d</c_imap_port>\n", config.c_imap_port);
427         cprintf("<c_net_freq>%ld</c_net_freq>\n", config.c_net_freq);
428         cprintf("<c_disable_newu>%d</c_disable_newu>\n", config.c_disable_newu);
429         cprintf("<c_enable_fulltext>%d</c_enable_fulltext>\n", config.c_enable_fulltext);
430         client_write("<c_baseroom>", 12);       xml_strout(config.c_baseroom);          client_write("</c_baseroom>\n", 14);
431         client_write("<c_aideroom>", 12);       xml_strout(config.c_aideroom);          client_write("</c_aideroom>\n", 14);
432         cprintf("<c_purge_hour>%d</c_purge_hour>\n", config.c_purge_hour);
433         cprintf("<c_mbxep_expire_mode>%d</c_mbxep_expire_mode>\n", config.c_mbxep.expire_mode);
434         cprintf("<c_mbxep_expire_value>%d</c_mbxep_expire_value>\n", config.c_mbxep.expire_value);
435         client_write("<c_ldap_host>", 13);      xml_strout(config.c_ldap_host);         client_write("</c_ldap_host>\n", 15);
436         cprintf("<c_ldap_port>%d</c_ldap_port>\n", config.c_ldap_port);
437         client_write("<c_ldap_base_dn>", 16);   xml_strout(config.c_ldap_base_dn);      client_write("</c_ldap_base_dn>\n", 18);
438         client_write("<c_ldap_bind_dn>", 16);   xml_strout(config.c_ldap_bind_dn);      client_write("</c_ldap_bind_dn>\n", 18);
439         client_write("<c_ldap_bind_pw>", 16);   xml_strout(config.c_ldap_bind_pw);      client_write("</c_ldap_bind_pw>\n", 18);
440         cprintf("<c_msa_port>%d</c_msa_port>\n", config.c_msa_port);
441         cprintf("<c_imaps_port>%d</c_imaps_port>\n", config.c_imaps_port);
442         cprintf("<c_pop3s_port>%d</c_pop3s_port>\n", config.c_pop3s_port);
443         cprintf("<c_smtps_port>%d</c_smtps_port>\n", config.c_smtps_port);
444         cprintf("<c_auto_cull>%d</c_auto_cull>\n", config.c_auto_cull);
445         cprintf("<c_allow_spoofing>%d</c_allow_spoofing>\n", config.c_allow_spoofing);
446         cprintf("<c_journal_email>%d</c_journal_email>\n", config.c_journal_email);
447         cprintf("<c_journal_pubmsgs>%d</c_journal_pubmsgs>\n", config.c_journal_pubmsgs);
448         client_write("<c_journal_dest>", 16);   xml_strout(config.c_journal_dest);      client_write("</c_journal_dest>\n", 18);
449         client_write("<c_default_cal_zone>", 20);       xml_strout(config.c_default_cal_zone);  client_write("</c_default_cal_zone>\n", 22);
450         cprintf("<c_pftcpdict_port>%d</c_pftcpdict_port>\n", config.c_pftcpdict_port);
451         cprintf("<c_managesieve_port>%d</c_managesieve_port>\n", config.c_managesieve_port);
452         cprintf("<c_auth_mode>%d</c_auth_mode>\n", config.c_auth_mode);
453         client_write("<c_funambol_host>", 17);  xml_strout(config.c_funambol_host);     client_write("</c_funambol_host>\n", 19);
454         cprintf("<c_funambol_port>%d</c_funambol_port>\n", config.c_funambol_port);
455         client_write("<c_funambol_source>", 19);        xml_strout(config.c_funambol_source);   client_write("</c_funambol_source>\n", 21);
456         client_write("<c_funambol_auth>", 17);  xml_strout(config.c_funambol_auth);     client_write("</c_funambol_auth>\n", 19);
457         cprintf("<c_rbl_at_greeting>%d</c_rbl_at_greeting>\n", config.c_rbl_at_greeting);
458         client_write("<c_master_user>", 15);    xml_strout(config.c_master_user);               client_write("</c_master_user>\n", 17);
459         client_write("<c_master_pass>", 15);    xml_strout(config.c_master_pass);               client_write("</c_master_pass>\n", 17);
460         client_write("<c_pager_program>", 17);  xml_strout(config.c_pager_program);             client_write("</c_pager_program>\n", 19);
461         cprintf("<c_imap_keep_from>%d</c_imap_keep_from>\n", config.c_imap_keep_from);
462         cprintf("<c_xmpp_c2s_port>%d</c_xmpp_c2s_port>\n", config.c_xmpp_c2s_port);
463         cprintf("<c_xmpp_s2s_port>%d</c_xmpp_s2s_port>\n", config.c_xmpp_s2s_port);
464         cprintf("<c_pop3_fetch>%ld</c_pop3_fetch>\n", config.c_pop3_fetch);
465         cprintf("<c_pop3_fastest>%ld</c_pop3_fastest>\n", config.c_pop3_fastest);
466         cprintf("<c_spam_flag_only>%d</c_spam_flag_only>\n", config.c_spam_flag_only);
467         client_write("</config>\n", 10);
468         
469         /* Export the control file */
470         get_control();
471         client_write("<control>\n", 10);
472         cprintf("<control_highest>%ld</control_highest>\n", CitControl.MMhighest);
473         cprintf("<control_flags>%u</control_flags>\n", CitControl.MMflags);
474         cprintf("<control_nextuser>%ld</control_nextuser>\n", CitControl.MMnextuser);
475         cprintf("<control_nextroom>%ld</control_nextroom>\n", CitControl.MMnextroom);
476         cprintf("<control_version>%d</control_version>\n", CitControl.version);
477         client_write("</control>\n", 11);
478
479         if (Ctx->kill_me == 0)  migr_export_users();
480         if (Ctx->kill_me == 0)  migr_export_openids();
481         if (Ctx->kill_me == 0)  migr_export_rooms();
482         if (Ctx->kill_me == 0)  migr_export_floors();
483         if (Ctx->kill_me == 0)  migr_export_visits();
484         if (Ctx->kill_me == 0)  migr_export_messages();
485         client_write("</citadel_migrate_data>\n", 24);
486         client_write("000\n", 4);
487         Ctx->dont_term = 0;
488 }
489
490
491
492
493         
494 /*
495  * Here's the code that implements the import side.  It's going to end up being
496  * one big loop with lots of global variables.  I don't care.  You wouldn't run
497  * multiple concurrent imports anyway.  If this offends your delicate sensibilities
498  * then go rewrite it in Ruby on Rails or something.
499  */
500
501
502 int citadel_migrate_data = 0;           /* Are we inside a <citadel_migrate_data> tag pair? */
503 char *migr_chardata = NULL;
504 int migr_chardata_len = 0;
505 struct ctdluser usbuf;
506 struct ctdlroom qrbuf;
507 char openid_url[512];
508 long openid_usernum = 0;
509 char FRname[ROOMNAMELEN];
510 struct floor flbuf;
511 int floornum = 0;
512 visit vbuf;
513 struct MetaData smi;
514 long import_msgnum = 0;
515 char *decoded_msg = NULL;
516
517 /*
518  * This callback stores up the data which appears in between tags.
519  */
520 void migr_xml_chardata(void *data, const XML_Char *s, int len) {
521         int old_len;
522         int new_len;
523         char *new_buffer;
524
525         old_len = migr_chardata_len;
526         new_len = old_len + len;
527         new_buffer = realloc(migr_chardata, new_len + 1);
528         if (new_buffer != NULL) {
529                 memcpy(&new_buffer[old_len], s, len);
530                 new_buffer[new_len] = 0;
531                 migr_chardata = new_buffer;
532                 migr_chardata_len = new_len;
533         }
534 }
535
536
537 void migr_xml_start(void *data, const char *el, const char **attr) {
538         int i;
539
540         /*** GENERAL STUFF ***/
541
542         /* Throw away any existing chardata */
543         if (migr_chardata != NULL) {
544                 free(migr_chardata);
545                 migr_chardata = NULL;
546                 migr_chardata_len = 0;
547         }
548
549         if (!strcasecmp(el, "citadel_migrate_data")) {
550                 ++citadel_migrate_data;
551
552                 /* As soon as it looks like the input data is a genuine Citadel XML export,
553                  * whack the existing database on disk to make room for the new one.
554                  */
555                 if (citadel_migrate_data == 1) {
556                         for (i = 0; i < MAXCDB; ++i) {
557                                 cdb_trunc(i);
558                         }
559                 }
560                 return;
561         }
562
563         if (citadel_migrate_data != 1) {
564                 syslog(LOG_ALERT, "Out-of-sequence tag <%s> detected.  Warning: ODD-DATA!\n", el);
565                 return;
566         }
567
568         /* When we begin receiving XML for one of these record types, clear out the associated
569          * buffer so we don't accidentally carry over any data from a previous record.
570          */
571         if (!strcasecmp(el, "user"))                    memset(&usbuf, 0, sizeof (struct ctdluser));
572         else if (!strcasecmp(el, "openid"))             memset(openid_url, 0, sizeof openid_url);
573         else if (!strcasecmp(el, "room"))               memset(&qrbuf, 0, sizeof (struct ctdlroom));
574         else if (!strcasecmp(el, "room_messages"))      memset(FRname, 0, sizeof FRname);
575         else if (!strcasecmp(el, "floor"))              memset(&flbuf, 0, sizeof (struct floor));
576         else if (!strcasecmp(el, "visit"))              memset(&vbuf, 0, sizeof (visit));
577
578         else if (!strcasecmp(el, "message")) {
579                 memset(&smi, 0, sizeof (struct MetaData));
580                 import_msgnum = 0;
581                 if (decoded_msg != NULL) {
582                         free(decoded_msg);
583                         decoded_msg = NULL;
584                 }
585         }
586
587 }
588
589
590 void migr_xml_end(void *data, const char *el) {
591         char *ptr;
592         int msgcount = 0;
593         long msgnum = 0L;
594         long *msglist = NULL;
595         int msglist_alloc = 0;
596         int i;
597         int is_textual_seen = 0;
598         long msglen;
599         int len;
600
601         /*** GENERAL STUFF ***/
602
603         if (!strcasecmp(el, "citadel_migrate_data")) {
604                 --citadel_migrate_data;
605                 return;
606         }
607
608         if (citadel_migrate_data != 1) {
609                 syslog(LOG_ALERT, "Out-of-sequence tag <%s> detected.  Warning: ODD-DATA!\n", el);
610                 return;
611         }
612
613         if (migr_chardata == NULL) {            /* If NULL chardata, substitute an empty string instead. */
614                 migr_chardata = strdup("");
615                 migr_chardata_len = 0;
616         }
617
618         // syslog(LOG_DEBUG, "END TAG: <%s> DATA: <%s>\n", el, (migr_chardata_len ? migr_chardata : ""));
619
620         /*** CONFIG ***/
621
622         if (!strcasecmp(el, "config")) {
623                 config.c_enable_fulltext = 0;   /* always disable */
624                 put_config();
625                 syslog(LOG_INFO, "Completed import of server configuration\n");
626         }
627
628         else if (!strcasecmp(el, "c_nodename"))                 safestrncpy(config.c_nodename, migr_chardata, sizeof config.c_nodename);
629         else if (!strcasecmp(el, "c_fqdn"))                     safestrncpy(config.c_fqdn, migr_chardata, sizeof config.c_fqdn);
630         else if (!strcasecmp(el, "c_humannode"))                safestrncpy(config.c_humannode, migr_chardata, sizeof config.c_humannode);
631         else if (!strcasecmp(el, "c_phonenum"))                 safestrncpy(config.c_phonenum, migr_chardata, sizeof config.c_phonenum);
632         else if (!strcasecmp(el, "c_ctdluid"))                  config.c_ctdluid = atoi(migr_chardata);
633         else if (!strcasecmp(el, "c_creataide"))                config.c_creataide = atoi(migr_chardata);
634         else if (!strcasecmp(el, "c_sleeping"))                 config.c_sleeping = atoi(migr_chardata);
635         else if (!strcasecmp(el, "c_initax"))                   config.c_initax = atoi(migr_chardata);
636         else if (!strcasecmp(el, "c_regiscall"))                config.c_regiscall = atoi(migr_chardata);
637         else if (!strcasecmp(el, "c_twitdetect"))               config.c_twitdetect = atoi(migr_chardata);
638         else if (!strcasecmp(el, "c_twitroom"))                 safestrncpy(config.c_twitroom, migr_chardata, sizeof config.c_twitroom);
639         else if (!strcasecmp(el, "c_moreprompt"))               safestrncpy(config.c_moreprompt, migr_chardata, sizeof config.c_moreprompt);
640         else if (!strcasecmp(el, "c_restrict"))                 config.c_restrict = atoi(migr_chardata);
641         else if (!strcasecmp(el, "c_site_location"))            safestrncpy(config.c_site_location, migr_chardata, sizeof config.c_site_location);
642         else if (!strcasecmp(el, "c_sysadm"))                   safestrncpy(config.c_sysadm, migr_chardata, sizeof config.c_sysadm);
643         else if (!strcasecmp(el, "c_maxsessions"))              config.c_maxsessions = atoi(migr_chardata);
644         else if (!strcasecmp(el, "c_ip_addr"))                  safestrncpy(config.c_ip_addr, migr_chardata, sizeof config.c_ip_addr);
645         else if (!strcasecmp(el, "c_port_number"))              config.c_port_number = atoi(migr_chardata);
646         else if (!strcasecmp(el, "c_ep_expire_mode"))           config.c_ep.expire_mode = atoi(migr_chardata);
647         else if (!strcasecmp(el, "c_ep_expire_value"))          config.c_ep.expire_value = atoi(migr_chardata);
648         else if (!strcasecmp(el, "c_userpurge"))                config.c_userpurge = atoi(migr_chardata);
649         else if (!strcasecmp(el, "c_roompurge"))                config.c_roompurge = atoi(migr_chardata);
650         else if (!strcasecmp(el, "c_logpages"))                 safestrncpy(config.c_logpages, migr_chardata, sizeof config.c_logpages);
651         else if (!strcasecmp(el, "c_createax"))                 config.c_createax = atoi(migr_chardata);
652         else if (!strcasecmp(el, "c_maxmsglen"))                config.c_maxmsglen = atol(migr_chardata);
653         else if (!strcasecmp(el, "c_min_workers"))              config.c_min_workers = atoi(migr_chardata);
654         else if (!strcasecmp(el, "c_max_workers"))              config.c_max_workers = atoi(migr_chardata);
655         else if (!strcasecmp(el, "c_pop3_port"))                config.c_pop3_port = atoi(migr_chardata);
656         else if (!strcasecmp(el, "c_smtp_port"))                config.c_smtp_port = atoi(migr_chardata);
657         else if (!strcasecmp(el, "c_rfc822_strict_from"))       config.c_rfc822_strict_from = atoi(migr_chardata);
658         else if (!strcasecmp(el, "c_aide_zap"))                 config.c_aide_zap = atoi(migr_chardata);
659         else if (!strcasecmp(el, "c_imap_port"))                config.c_imap_port = atoi(migr_chardata);
660         else if (!strcasecmp(el, "c_net_freq"))                 config.c_net_freq = atol(migr_chardata);
661         else if (!strcasecmp(el, "c_disable_newu"))             config.c_disable_newu = atoi(migr_chardata);
662         else if (!strcasecmp(el, "c_enable_fulltext"))          config.c_enable_fulltext = atoi(migr_chardata);
663         else if (!strcasecmp(el, "c_baseroom"))                 safestrncpy(config.c_baseroom, migr_chardata, sizeof config.c_baseroom);
664         else if (!strcasecmp(el, "c_aideroom"))                 safestrncpy(config.c_aideroom, migr_chardata, sizeof config.c_aideroom);
665         else if (!strcasecmp(el, "c_purge_hour"))               config.c_purge_hour = atoi(migr_chardata);
666         else if (!strcasecmp(el, "c_mbxep_expire_mode"))        config.c_mbxep.expire_mode = atoi(migr_chardata);
667         else if (!strcasecmp(el, "c_mbxep_expire_value"))       config.c_mbxep.expire_value = atoi(migr_chardata);
668         else if (!strcasecmp(el, "c_ldap_host"))                safestrncpy(config.c_ldap_host, migr_chardata, sizeof config.c_ldap_host);
669         else if (!strcasecmp(el, "c_ldap_port"))                config.c_ldap_port = atoi(migr_chardata);
670         else if (!strcasecmp(el, "c_ldap_base_dn"))             safestrncpy(config.c_ldap_base_dn, migr_chardata, sizeof config.c_ldap_base_dn);
671         else if (!strcasecmp(el, "c_ldap_bind_dn"))             safestrncpy(config.c_ldap_bind_dn, migr_chardata, sizeof config.c_ldap_bind_dn);
672         else if (!strcasecmp(el, "c_ldap_bind_pw"))             safestrncpy(config.c_ldap_bind_pw, migr_chardata, sizeof config.c_ldap_bind_pw);
673         else if (!strcasecmp(el, "c_msa_port"))                 config.c_msa_port = atoi(migr_chardata);
674         else if (!strcasecmp(el, "c_imaps_port"))               config.c_imaps_port = atoi(migr_chardata);
675         else if (!strcasecmp(el, "c_pop3s_port"))               config.c_pop3s_port = atoi(migr_chardata);
676         else if (!strcasecmp(el, "c_smtps_port"))               config.c_smtps_port = atoi(migr_chardata);
677         else if (!strcasecmp(el, "c_auto_cull"))                config.c_auto_cull = atoi(migr_chardata);
678         else if (!strcasecmp(el, "c_allow_spoofing"))           config.c_allow_spoofing = atoi(migr_chardata);
679         else if (!strcasecmp(el, "c_journal_email"))            config.c_journal_email = atoi(migr_chardata);
680         else if (!strcasecmp(el, "c_journal_pubmsgs"))          config.c_journal_pubmsgs = atoi(migr_chardata);
681         else if (!strcasecmp(el, "c_journal_dest"))             safestrncpy(config.c_journal_dest, migr_chardata, sizeof config.c_journal_dest);
682         else if (!strcasecmp(el, "c_default_cal_zone"))         safestrncpy(config.c_default_cal_zone, migr_chardata, sizeof config.c_default_cal_zone);
683         else if (!strcasecmp(el, "c_pftcpdict_port"))           config.c_pftcpdict_port = atoi(migr_chardata);
684         else if (!strcasecmp(el, "c_managesieve_port"))         config.c_managesieve_port = atoi(migr_chardata);
685         else if (!strcasecmp(el, "c_auth_mode"))                config.c_auth_mode = atoi(migr_chardata);
686         else if (!strcasecmp(el, "c_funambol_host"))            safestrncpy(config.c_funambol_host, migr_chardata, sizeof config.c_funambol_host);
687         else if (!strcasecmp(el, "c_funambol_port"))            config.c_funambol_port = atoi(migr_chardata);
688         else if (!strcasecmp(el, "c_funambol_source"))          safestrncpy(config.c_funambol_source, migr_chardata, sizeof config.c_funambol_source);
689         else if (!strcasecmp(el, "c_funambol_auth"))            safestrncpy(config.c_funambol_auth, migr_chardata, sizeof config.c_funambol_auth);
690         else if (!strcasecmp(el, "c_rbl_at_greeting"))          config.c_rbl_at_greeting = atoi(migr_chardata);
691         else if (!strcasecmp(el, "c_master_user"))              safestrncpy(config.c_master_user, migr_chardata, sizeof config.c_master_user);
692         else if (!strcasecmp(el, "c_master_pass"))              safestrncpy(config.c_master_pass, migr_chardata, sizeof config.c_master_pass);
693         else if (!strcasecmp(el, "c_pager_program"))            safestrncpy(config.c_pager_program, migr_chardata, sizeof config.c_pager_program);
694         else if (!strcasecmp(el, "c_imap_keep_from"))           config.c_imap_keep_from = atoi(migr_chardata);
695         else if (!strcasecmp(el, "c_xmpp_c2s_port"))            config.c_xmpp_c2s_port = atoi(migr_chardata);
696         else if (!strcasecmp(el, "c_xmpp_s2s_port"))            config.c_xmpp_s2s_port = atoi(migr_chardata);
697         else if (!strcasecmp(el, "c_pop3_fetch"))               config.c_pop3_fetch = atol(migr_chardata);
698         else if (!strcasecmp(el, "c_pop3_fastest"))             config.c_pop3_fastest = atol(migr_chardata);
699         else if (!strcasecmp(el, "c_spam_flag_only"))           config.c_spam_flag_only = atoi(migr_chardata);
700
701         /*** CONTROL ***/
702
703         else if (!strcasecmp(el, "control_highest"))            CitControl.MMhighest = atol(migr_chardata);
704         else if (!strcasecmp(el, "control_flags"))              CitControl.MMflags = atoi(migr_chardata);
705         else if (!strcasecmp(el, "control_nextuser"))           CitControl.MMnextuser = atol(migr_chardata);
706         else if (!strcasecmp(el, "control_nextroom"))           CitControl.MMnextroom = atol(migr_chardata);
707         else if (!strcasecmp(el, "control_version"))            CitControl.version = atoi(migr_chardata);
708
709         else if (!strcasecmp(el, "control")) {
710                 CitControl.MMfulltext = (-1L);  /* always flush */
711                 put_control();
712                 syslog(LOG_INFO, "Completed import of control record\n");
713         }
714
715         /*** USER ***/
716
717         else if (!strcasecmp(el, "u_version"))                  usbuf.version = atoi(migr_chardata);
718         else if (!strcasecmp(el, "u_uid"))                      usbuf.uid = atol(migr_chardata);
719         else if (!strcasecmp(el, "u_password"))                 safestrncpy(usbuf.password, migr_chardata, sizeof usbuf.password);
720         else if (!strcasecmp(el, "u_flags"))                    usbuf.flags = atoi(migr_chardata);
721         else if (!strcasecmp(el, "u_timescalled"))              usbuf.timescalled = atol(migr_chardata);
722         else if (!strcasecmp(el, "u_posted"))                   usbuf.posted = atol(migr_chardata);
723         else if (!strcasecmp(el, "u_axlevel"))                  usbuf.axlevel = atoi(migr_chardata);
724         else if (!strcasecmp(el, "u_usernum"))                  usbuf.usernum = atol(migr_chardata);
725         else if (!strcasecmp(el, "u_lastcall"))                 usbuf.lastcall = atol(migr_chardata);
726         else if (!strcasecmp(el, "u_USuserpurge"))              usbuf.USuserpurge = atoi(migr_chardata);
727         else if (!strcasecmp(el, "u_fullname"))                 safestrncpy(usbuf.fullname, migr_chardata, sizeof usbuf.fullname);
728
729         else if (!strcasecmp(el, "user")) {
730                 CtdlPutUser(&usbuf);
731                 syslog(LOG_INFO, "Imported user: %s\n", usbuf.fullname);
732         }
733
734         /*** OPENID ***/
735
736         else if (!strcasecmp(el, "oid_url"))                    safestrncpy(openid_url, migr_chardata, sizeof openid_url);
737         else if (!strcasecmp(el, "oid_usernum"))                openid_usernum = atol(migr_chardata);
738
739         else if (!strcasecmp(el, "openid")) {                   /* see serv_openid_rp.c for a description of the record format */
740                 char *oid_data;
741                 int oid_data_len;
742                 oid_data_len = sizeof(long) + strlen(openid_url) + 1;
743                 oid_data = malloc(oid_data_len);
744                 memcpy(oid_data, &openid_usernum, sizeof(long));
745                 memcpy(&oid_data[sizeof(long)], openid_url, strlen(openid_url) + 1);
746                 cdb_store(CDB_OPENID, openid_url, strlen(openid_url), oid_data, oid_data_len);
747                 free(oid_data);
748                 syslog(LOG_INFO, "Imported OpenID: %s (%ld)\n", openid_url, openid_usernum);
749         }
750
751         /*** ROOM ***/
752
753         else if (!strcasecmp(el, "QRname"))                     safestrncpy(qrbuf.QRname, migr_chardata, sizeof qrbuf.QRname);
754         else if (!strcasecmp(el, "QRpasswd"))                   safestrncpy(qrbuf.QRpasswd, migr_chardata, sizeof qrbuf.QRpasswd);
755         else if (!strcasecmp(el, "QRroomaide"))                 qrbuf.QRroomaide = atol(migr_chardata);
756         else if (!strcasecmp(el, "QRhighest"))                  qrbuf.QRhighest = atol(migr_chardata);
757         else if (!strcasecmp(el, "QRgen"))                      qrbuf.QRgen = atol(migr_chardata);
758         else if (!strcasecmp(el, "QRflags"))                    qrbuf.QRflags = atoi(migr_chardata);
759         else if (!strcasecmp(el, "QRdirname"))                  safestrncpy(qrbuf.QRdirname, migr_chardata, sizeof qrbuf.QRdirname);
760         else if (!strcasecmp(el, "QRinfo"))                     qrbuf.QRinfo = atol(migr_chardata);
761         else if (!strcasecmp(el, "QRfloor"))                    qrbuf.QRfloor = atoi(migr_chardata);
762         else if (!strcasecmp(el, "QRmtime"))                    qrbuf.QRmtime = atol(migr_chardata);
763         else if (!strcasecmp(el, "QRexpire_mode"))              qrbuf.QRep.expire_mode = atoi(migr_chardata);
764         else if (!strcasecmp(el, "QRexpire_value"))             qrbuf.QRep.expire_value = atoi(migr_chardata);
765         else if (!strcasecmp(el, "QRnumber"))                   qrbuf.QRnumber = atol(migr_chardata);
766         else if (!strcasecmp(el, "QRorder"))                    qrbuf.QRorder = atoi(migr_chardata);
767         else if (!strcasecmp(el, "QRflags2"))                   qrbuf.QRflags2 = atoi(migr_chardata);
768         else if (!strcasecmp(el, "QRdefaultview"))              qrbuf.QRdefaultview = atoi(migr_chardata);
769
770         else if (!strcasecmp(el, "room")) {
771                 CtdlPutRoom(&qrbuf);
772                 syslog(LOG_INFO, "Imported room: %s\n", qrbuf.QRname);
773         }
774
775         /*** ROOM MESSAGE POINTERS ***/
776
777         else if (!strcasecmp(el, "FRname"))                     safestrncpy(FRname, migr_chardata, sizeof FRname);
778
779         else if (!strcasecmp(el, "FRmsglist")) {
780                 if (!IsEmptyStr(FRname)) {
781                         msgcount = 0;
782                         msglist_alloc = 1000;
783                         msglist = malloc(sizeof(long) * msglist_alloc);
784
785                         syslog(LOG_DEBUG, "Message list for: %s\n", FRname);
786
787                         ptr = migr_chardata;
788                         while (*ptr != 0) {
789                                 while ((*ptr != 0) && (!isdigit(*ptr))) {
790                                         ++ptr;
791                                 }
792                                 if ((*ptr != 0) && (isdigit(*ptr))) {
793                                         msgnum = atol(ptr);
794                                         if (msgnum > 0L) {
795                                                 if (msgcount >= msglist_alloc) {
796                                                         msglist_alloc *= 2;
797                                                         msglist = realloc(msglist, sizeof(long) * msglist_alloc);
798                                                 }
799                                                 msglist[msgcount++] = msgnum;
800                                                 }
801                                         }
802                                         while ((*ptr != 0) && (isdigit(*ptr))) {
803                                                 ++ptr;
804                                         }
805                                 }
806                         }
807                         if (msgcount > 0) {
808                                 CtdlSaveMsgPointersInRoom(FRname, msglist, msgcount, 0, NULL, 1);
809                         }
810                         free(msglist);
811                         msglist = NULL;
812                         msglist_alloc = 0;
813                         syslog(LOG_DEBUG, "Imported %d messages.\n", msgcount);
814                         if (server_shutting_down) {
815                                 return;
816                 }
817         }
818
819         /*** FLOORS ***/
820
821         else if (!strcasecmp(el, "f_num"))                      floornum = atoi(migr_chardata);
822         else if (!strcasecmp(el, "f_flags"))                    flbuf.f_flags = atoi(migr_chardata);
823         else if (!strcasecmp(el, "f_name"))                     safestrncpy(flbuf.f_name, migr_chardata, sizeof flbuf.f_name);
824         else if (!strcasecmp(el, "f_ref_count"))                flbuf.f_ref_count = atoi(migr_chardata);
825         else if (!strcasecmp(el, "f_ep_expire_mode"))           flbuf.f_ep.expire_mode = atoi(migr_chardata);
826         else if (!strcasecmp(el, "f_ep_expire_value"))          flbuf.f_ep.expire_value = atoi(migr_chardata);
827
828         else if (!strcasecmp(el, "floor")) {
829                 CtdlPutFloor(&flbuf, floornum);
830                 syslog(LOG_INFO, "Imported floor #%d (%s)\n", floornum, flbuf.f_name);
831         }
832
833         /*** VISITS ***/
834
835         else if (!strcasecmp(el, "v_roomnum"))                  vbuf.v_roomnum = atol(migr_chardata);
836         else if (!strcasecmp(el, "v_roomgen"))                  vbuf.v_roomgen = atol(migr_chardata);
837         else if (!strcasecmp(el, "v_usernum"))                  vbuf.v_usernum = atol(migr_chardata);
838
839         else if (!strcasecmp(el, "v_seen")) {
840                 vbuf.v_lastseen = atol(migr_chardata);
841                 is_textual_seen = 0;
842                 for (i=0; migr_chardata[i]; ++i) if (!isdigit(migr_chardata[i])) is_textual_seen = 1;
843                 if (is_textual_seen)                            safestrncpy(vbuf.v_seen, migr_chardata, sizeof vbuf.v_seen);
844         }
845
846         else if (!strcasecmp(el, "v_answered"))                 safestrncpy(vbuf.v_answered, migr_chardata, sizeof vbuf.v_answered);
847         else if (!strcasecmp(el, "v_flags"))                    vbuf.v_flags = atoi(migr_chardata);
848         else if (!strcasecmp(el, "v_view"))                     vbuf.v_view = atoi(migr_chardata);
849
850         else if (!strcasecmp(el, "visit")) {
851                 put_visit(&vbuf);
852                 syslog(LOG_INFO, "Imported visit: %ld/%ld/%ld\n", vbuf.v_roomnum, vbuf.v_roomgen, vbuf.v_usernum);
853         }
854
855         /*** MESSAGES ***/
856
857         else if (!strcasecmp(el, "msg_msgnum"))                 import_msgnum = atol(migr_chardata);
858         else if (!strcasecmp(el, "msg_meta_refcount"))          smi.meta_refcount = atoi(migr_chardata);
859         else if (!strcasecmp(el, "msg_meta_content_type"))      safestrncpy(smi.meta_content_type, migr_chardata, sizeof smi.meta_content_type);
860
861         else if (!strcasecmp(el, "msg_text")) {
862                 if (decoded_msg != NULL) {
863                         free(decoded_msg);
864                 }
865                 len = strlen(migr_chardata);
866                 decoded_msg = malloc(len);
867                 msglen = CtdlDecodeBase64(decoded_msg, migr_chardata, len);
868                 cdb_store(CDB_MSGMAIN, &import_msgnum, sizeof(long), decoded_msg, msglen);
869                 free(decoded_msg);
870                 decoded_msg = NULL;
871                 PutMetaData(&smi);
872                 syslog(LOG_INFO, "Imported message #%ld, size=%ld, refcount=%d, content-type: %s\n",
873                         import_msgnum, msglen, smi.meta_refcount, smi.meta_content_type);
874         }
875
876         /*** MORE GENERAL STUFF ***/
877
878         if (migr_chardata != NULL) {
879                 free(migr_chardata);
880                 migr_chardata = NULL;
881                 migr_chardata_len = 0;
882         }
883 }
884
885
886
887
888 /*
889  * Import begins here
890  */
891 void migr_do_import(void) {
892         char buf[SIZ];
893         XML_Parser xp;
894         int linelen;
895         
896         unbuffer_output();
897
898         xp = XML_ParserCreate(NULL);
899         if (!xp) {
900                 cprintf("%d Failed to create XML parser instance\n", ERROR+INTERNAL_ERROR);
901                 return;
902         }
903         XML_SetElementHandler(xp, migr_xml_start, migr_xml_end);
904         XML_SetCharacterDataHandler(xp, migr_xml_chardata);
905
906         CC->dont_term = 1;
907
908         cprintf("%d sock it to me\n", SEND_LISTING);
909         unbuffer_output();
910
911         while (client_getln(buf, sizeof buf) >= 0 && strcmp(buf, "000")) {
912                 linelen = strlen(buf);
913                 strcpy(&buf[linelen++], "\n");
914
915                 if (server_shutting_down)
916                         break;  // Should we break or return?
917                 
918                 if (buf[0] == '\0')
919                         continue;
920
921                 XML_Parse(xp, buf, linelen, 0);
922         }
923
924         XML_Parse(xp, "", 0, 1);
925         XML_ParserFree(xp);
926         
927         rebuild_euid_index();
928         rebuild_usersbynumber();
929         CC->dont_term = 0;
930 }
931
932
933
934 /*
935  * Dump out the pathnames of directories which can be copied "as is"
936  */
937 void migr_do_listdirs(void) {
938         cprintf("%d Don't forget these:\n", LISTING_FOLLOWS);
939         cprintf("bio|%s\n",             ctdl_bio_dir);
940         cprintf("files|%s\n",           ctdl_file_dir);
941         cprintf("userpics|%s\n",        ctdl_usrpic_dir);
942         cprintf("messages|%s\n",        ctdl_message_dir);
943         cprintf("netconfigs|%s\n",      ctdl_netcfg_dir);
944         cprintf("keys|%s\n",            ctdl_key_dir);
945         cprintf("images|%s\n",          ctdl_image_dir);
946         cprintf("info|%s\n",            ctdl_info_dir);
947         cprintf("000\n");
948 }
949
950
951 /*
952  * Common code appears in this section
953  */
954
955
956 void cmd_migr(char *cmdbuf) {
957         char cmd[32];
958         
959         if (CtdlAccessCheck(ac_internal)) return;
960         
961         if (CtdlTrySingleUser())
962         {
963                 CtdlMakeTempFileName(migr_tempfilename1, sizeof migr_tempfilename1);
964                 CtdlMakeTempFileName(migr_tempfilename2, sizeof migr_tempfilename2);
965
966                 extract_token(cmd, cmdbuf, 0, '|', sizeof cmd);
967                 if (!strcasecmp(cmd, "export")) {
968                         migr_do_export();
969                 }
970                 else if (!strcasecmp(cmd, "import")) {
971                         migr_do_import();
972                 }
973                 else if (!strcasecmp(cmd, "listdirs")) {
974                         migr_do_listdirs();
975                 }
976                 else {
977                         cprintf("%d illegal command\n", ERROR + ILLEGAL_VALUE);
978                 }
979
980                 unlink(migr_tempfilename1);
981                 unlink(migr_tempfilename2);
982                 
983                 CtdlEndSingleUser();
984         }
985         else
986         {
987                 cprintf("%d The migrator is already running.\n", ERROR + RESOURCE_BUSY);
988         }
989 }
990
991
992 CTDL_MODULE_INIT(migrate)
993 {
994         if (!threading)
995         {
996                 CtdlRegisterProtoHook(cmd_migr, "MIGR", "Across-the-wire migration");
997                 CtdlRegisterProtoHook(cmd_migr, "ARTV", "Across-the-wire migration (legacy syntax)");
998         }
999         
1000         /* return our module name for the log */
1001         return "migrate";
1002 }