1 // Don't run this. It doesn't work and if you try to run it you will immediately die.
3 // Copyright (c) 2023 by Art Cancro citadel.org
5 // This program is open source software. Use, duplication, or disclosure
6 // is subject to the terms of the GNU General Public License, version 3.
13 #include <sys/types.h>
14 #include <sys/socket.h>
22 #include <libcitadel.h>
25 #include "../server/sysdep.h"
26 #include "../server/citadel_defs.h"
27 #include "../server/server.h"
28 #include "../server/citadel_dirs.h"
31 // Wrapper for realloc() that crashes and burns if the call fails.
32 void *reallok(void *ptr, size_t size) {
33 void *p = realloc(ptr, size);
35 fprintf(stderr, "realloc() failed to resize %p to %ld bytes, error: %m\n", ptr, size);
42 // convert a binary blob to base64 (non-reentrant!)
43 char *b64out(void *data, size_t len) {
44 static char *outbuf = NULL;
45 static size_t outlen = 0;
47 if ((outbuf == NULL) || (outlen < (len * 2))) {
48 outbuf = reallok(outbuf, (len * 2));
52 CtdlEncodeBase64(outbuf, data, len, 0);
57 // Open a database environment
58 DB_ENV *open_dbenv(char *dirname) {
65 int dbversion_major, dbversion_minor, dbversion_patch;
67 db_version(&dbversion_major, &dbversion_minor, &dbversion_patch);
69 // Create synthetic integer version numbers and compare them.
70 // Never run with a libdb other than the one with which it was compiled.
71 int compiled_db_version = ( (DB_VERSION_MAJOR * 1000000) + (DB_VERSION_MINOR * 1000) + (DB_VERSION_PATCH) );
72 int linked_db_version = ( (dbversion_major * 1000000) + (dbversion_minor * 1000) + (dbversion_patch) );
73 if (compiled_db_version != linked_db_version) {
74 fprintf(stderr, "ctdldump: ctdldump is running with a version of libdb other than the one with which it was compiled.\n"
75 "ctdldump: This is an invalid configuration. ctdldump will now exit to prevent data loss.");
79 ret = db_env_create(&dbenv, 0);
81 fprintf(stderr, "ctdldump: db_env_create: %s\n", db_strerror(ret));
82 fprintf(stderr, "ctdldump: exit code %d\n", ret);
86 // We want to specify the shared memory buffer pool cachesize, but everything else is the default.
87 ret = dbenv->set_cachesize(dbenv, 0, 64 * 1024, 0);
89 fprintf(stderr, "ctdldump: set_cachesize: %s\n", db_strerror(ret));
90 dbenv->close(dbenv, 0);
91 fprintf(stderr, "ctdldump: exit code %d\n", ret);
95 if ((ret = dbenv->set_lk_detect(dbenv, DB_LOCK_DEFAULT))) {
96 fprintf(stderr, "ctdldump: set_lk_detect: %s\n", db_strerror(ret));
97 dbenv->close(dbenv, 0);
98 fprintf(stderr, "ctdldump: exit code %d\n", ret);
102 flags = DB_CREATE | DB_INIT_MPOOL | DB_PRIVATE | DB_INIT_LOG;
103 ret = dbenv->open(dbenv, dirname, flags, 0);
105 fprintf(stderr, "ctdldump: dbenv->open: %s\n", db_strerror(ret));
106 dbenv->close(dbenv, 0);
107 fprintf(stderr, "ctdldump: exit code %d\n", ret);
115 void close_dbenv(DB_ENV *dbenv) {
116 int ret = dbenv->close(dbenv, 0);
118 fprintf(stderr, "ctdldump: dbenv->close: %s\n", db_strerror(ret));
123 // export function for a message in msgmain
124 void export_msgmain(int which_cdb, DBT *in_key, DBT *in_data) {
127 memcpy(&in_msgnum, in_key->data, sizeof(in_msgnum));
129 // If the msgnum is negative, we are looking at METADATA
131 struct MetaData *meta = (struct MetaData *)in_data->data;
132 printf("msgmeta|%ld|%d|%s|%ld|\n",
135 meta->meta_content_type,
136 meta->meta_rfc822_length
140 // If the msgnum is positive, we are looking at a MESSAGE
141 else if (in_msgnum > 0) {
142 printf("msgtext|%ld|%s|\n", in_msgnum, b64out(in_data->data, in_data->size));
145 // If the msgnum is 0 it's probably not a valid record.
149 // export function for a user record
150 void export_user(int which_cdb, DBT *in_key, DBT *in_data) {
152 struct ctdluser *user = (struct ctdluser *)in_data->data;
154 printf("user|%d|%d|%s|%u|%d|%ld|%ld|%d|%s|%ld|%ld|%s|%ld|%ld|\n",
166 b64out(user->emailaddrs, strlen(user->emailaddrs)),
167 user->msgnum_inboxrules,
168 user->lastproc_inboxrules
173 // export function for a room record
174 void export_room(int which_cdb, DBT *in_key, DBT *in_data) {
176 struct ctdlroom *room = (struct ctdlroom *)in_data->data;
178 printf("room|%s|%s|%ld|%ld|%ld|%u|%s|%ld|%d|%ld|%d|%d|%ld|%d|%u|%d|%ld|\n",
189 room->QRep.expire_mode,
190 room->QRep.expire_value,
200 // export function for a floor record
201 void export_floor(int which_cdb, DBT *in_key, DBT *in_data) {
204 memcpy(&floor_num, in_key->data, sizeof(int));
206 struct floor *floor = (struct floor *)in_data->data;
208 printf("floor|%d|%u|%s|%d|%d|%d|\n",
213 floor->f_ep.expire_mode,
214 floor->f_ep.expire_value
219 // export function for a msglist or a fulltext index record
220 // (both are indexed by a long and the data is arrays of longs)
221 void export_msglist(int which_cdb, DBT *in_key, DBT *in_data) {
226 // records are indexed by a single "long" and contains an array of zero or more "long"s
228 memcpy(&roomnum, in_key->data, sizeof(long));
230 printf("msglist|%ld|", roomnum);
232 if (in_data->size > 0) {
233 num_msgs = in_data->size / sizeof(long);
234 for (i=0; i<num_msgs; ++i) {
235 memcpy(&msg, (in_data->data + (i * sizeof(long))), sizeof(long));
246 // export function for a visit record
247 void export_visit(int which_cdb, DBT *in_key, DBT *in_data) {
248 struct visit *visit = (struct visit *)in_data->data;
249 printf("visit|%ld|%ld|%ld|%ld|%u|%s|%s|%d|\n",
262 // export function for a directory record
263 // (This is a secondary index -- should we just regenerate the data after import?)
264 // void export_dir(int which_cdb, DBT *in_key, DBT *in_data) {
266 // fwrite(in_key->data, in_key->size, 1, stdout);
267 // printf("|%s|\n", (char *)in_data->data);
271 // export function for a use table record
272 void export_usetable(int which_cdb, DBT *in_key, DBT *in_data) {
273 struct UseTable *u = (struct UseTable *)in_data->data;
274 printf("use|%d|%ld|\n", u->hash, u->timestamp);
278 // export function for large message texts
279 void export_bigmsg(int which_cdb, DBT *in_key, DBT *in_data) {
282 memcpy(&msgnum, in_key->data, sizeof(msgnum));
283 printf("bigmsg|%ld|%s|\n", msgnum, b64out(in_data->data, in_data->size));
287 // export function for EUID Index records
288 //void export_euidindex(int which_cdb, DBT *in_key, DBT *in_data) {
290 // The structure of an euidindex record *key* is:
291 // |----room_number----|----------EUID-------------|
292 // (sizeof long) (actual length of euid)
294 // The structure of an euidindex record *value* is:
295 // |-----msg_number----|----room_number----|----------EUID-------------|
296 // (sizeof long) (sizeof long) (actual length of euid)
298 //long msgnum, roomnum;
301 //memcpy(&msgnum, in_data->data, sizeof(long));
302 //memcpy(&roomnum, in_data->data+sizeof(long), sizeof(msgnum));
303 //euid = in_data->data+(sizeof(long)*2);
305 //printf("euidindex|%ld|%ld|%s|\n", msgnum, roomnum, euid);
309 // export users-by-number records
310 // (This is a secondary index -- should we just regenerate the data after import?)
311 //void export_usersbynumber(int which_cdb, DBT *in_key, DBT *in_data) {
315 //memcpy(&usernum, in_key->data, sizeof(usernum));
318 //printf("usersbynumber|%ld|%s|\n", usernum, (char *)in_data->data);
322 // export function for a config record
323 void export_config(int which_cdb, DBT *in_key, DBT *in_data) {
325 printf("config|%s|%s|\n",
326 (char *)in_data->data,
327 (char *)in_data->data + strlen(in_data->data) + 1
333 // For obsolete databases, zero all the output
334 void zero_function(int which_cdb, DBT *in_key, DBT *in_data) {
339 void (*export_functions[])(int which_cdb, DBT *in_key, DBT *in_data) = {
340 export_msgmain, // CDB_MSGMAIN
341 export_user, // CDB_USERS
342 export_room, // CDB_ROOMS
343 export_floor, // CDB_FLOORTAB
344 export_msglist, // CDB_MSGLISTS
345 export_visit, // CDB_VISIT
346 zero_function, // CDB_DIRECTORY (regenerate this on the server)
347 export_usetable, // CDB_USETABLE
348 export_bigmsg, // CDB_BIGMSGS
349 zero_function, // CDB_FULLTEXT (regenerate this on the server)
350 zero_function, // CDB_EUIDINDEX (regenerate this on the server)
351 zero_function, // CDB_USERSBYNUMBER (regenerate this on the server)
352 zero_function, // CDB_UNUSED1 (obsolete)
353 export_config // CDB_CONFIG
357 void export_table(int which_cdb, DB_ENV *src_dbenv) {
363 // shamelessly swiped from https://docs.oracle.com/database/bdb181/html/programmer_reference/am_cursor.html
366 DBT in_key, in_data, uncomp_data;
367 int num_good_rows = 0;
368 int num_bad_rows = 0;
370 snprintf(dbfilename, sizeof dbfilename, "cdb.%02x", which_cdb);
372 // create a database handle for the source table
373 ret = db_create(&src_dbp, src_dbenv, 0);
375 fprintf(stderr, "ctdldump: db_create: %s\n", db_strerror(ret));
376 fprintf(stderr, "ctdldump: exit code %d\n", ret);
380 // open the file containing the source table
381 ret = src_dbp->open(src_dbp, NULL, dbfilename, NULL, DB_BTREE, 0, 0600);
383 fprintf(stderr, "ctdldump: db_open: %s\n", db_strerror(ret));
384 fprintf(stderr, "ctdldump: exit code %d\n", ret);
388 // Acquire a cursor to read the source table
389 if ((ret = src_dbp->cursor(src_dbp, NULL, &src_dbcp, 0)) != 0) {
390 fprintf(stderr, "ctdldump: db_cursor: %s\n", db_strerror(ret));
391 fprintf(stderr, "ctdldump: exit code %d\n", ret);
395 // Zero out these database keys
396 memset(&in_key, 0, sizeof(DBT)); // input
397 memset(&in_data, 0, sizeof(DBT));
398 memset(&uncomp_data, 0, sizeof(DBT)); // decompressed input (the key doesn't change)
400 // Walk through the database, calling export functions as we go and clearing buffers before each call.
401 while (ret = src_dbcp->get(src_dbcp, &in_key, &in_data, DB_NEXT) == 0) {
403 // If either the key or data are zero length, skip this record
404 if ((in_key.size == 0) || (in_data.size == 0)) {
408 else { // Both key and data are >0 length so we're good to go
410 // Do we need to decompress?
411 static int32_t magic = COMPRESS_MAGIC;
413 if ((in_data.size >= sizeof(struct CtdlCompressHeader)) && (!memcmp(in_data.data, &magic, sizeof(magic)))) {
415 // yes, we need to decompress
417 struct CtdlCompressHeader comp;
418 memcpy(&comp, in_data.data, sizeof(struct CtdlCompressHeader));
419 uncomp_data.size = comp.uncompressed_len;
420 uncomp_data.data = reallok(uncomp_data.data, uncomp_data.size);
421 destLen = (uLongf)comp.uncompressed_len;
423 ret = uncompress((Bytef *)uncomp_data.data, (uLongf *)&destLen,
424 (const Bytef *)in_data.data+sizeof(struct CtdlCompressHeader),
425 (uLong)comp.compressed_len);
427 fprintf(stderr, "ctdldump: uncompress() error %d\n", ret);
432 // Call the export function registered to this table
433 export_functions[which_cdb](which_cdb, &in_key, (compressed ? &uncomp_data : &in_data));
435 // Knowing the total number of rows isn't critical to the program. It's just for the user to know.
440 // free any leftover out_data pointers
441 free(uncomp_data.data);
443 // ...and close the database (table)
444 ret = src_dbp->close(src_dbp, 0);
446 fprintf(stderr, "ctdldump: db_close: %s\n", db_strerror(ret));
453 int main(int argc, char **argv) {
455 char *src_dir = NULL;
456 char *dst_dir = NULL;
458 static DB_ENV *src_dbenv; // Source DB environment (global)
460 // display the greeting
461 fprintf(stderr, "\033[44m\033[30m \033[K\033[0m\n"
462 "\033[44m\033[30m DB Dump utility for Citadel \033[K\033[0m\n"
463 "\033[44m\033[30m Copyright (c) 2023 by citadel.org et al. \033[K\033[0m\n"
464 "\033[44m\033[30m This program is open source software. Use, duplication, or disclosure \033[K\033[0m\n"
465 "\033[44m\033[30m is subject to the terms of the GNU General Public license v3. \033[K\033[0m\n"
466 "\033[44m\033[30m \033[K\033[0m\n");
468 // Parse command line
470 while ((a = getopt(argc, argv, "h:y")) != EOF) {
479 fprintf(stderr, "%s: usage: %s -s source_dir [>dumpfile]\n", argv[0], argv[0]);
484 if (confirmed == 1) {
485 fprintf(stderr, "ctdldump: You have specified the [-y] flag, so processing will continue.\n");
488 fprintf(stderr, "ctdldump: Please read [ https://www.citadel.org/dump-and-load.html ] to learn how to proceed.\n");
492 src_dbenv = open_dbenv(src_dir);
494 for (i = 0; i < MAXCDB; ++i) {
495 export_table(i, src_dbenv);
496 if (i == CDB_CONFIG) {
497 printf("config|regenerate_secondary_indices|1|\n"); // Force citserver to rebuild those tables
498 printf("config|MM_fulltext_wordbreaker|0|\n"); // Burn the full text search index
501 close_dbenv(src_dbenv);