Line data Source code
1 : /*-------------------------------------------------------------------------
2 : *
3 : * pg_dumpall.c
4 : *
5 : * Portions Copyright (c) 1996-2024, PostgreSQL Global Development Group
6 : * Portions Copyright (c) 1994, Regents of the University of California
7 : *
8 : * pg_dumpall forces all pg_dump output to be text, since it also outputs
9 : * text into the same output stream.
10 : *
11 : * src/bin/pg_dump/pg_dumpall.c
12 : *
13 : *-------------------------------------------------------------------------
14 : */
15 :
16 : #include "postgres_fe.h"
17 :
18 : #include <time.h>
19 : #include <unistd.h>
20 :
21 : #include "catalog/pg_authid_d.h"
22 : #include "common/connect.h"
23 : #include "common/file_utils.h"
24 : #include "common/hashfn_unstable.h"
25 : #include "common/logging.h"
26 : #include "common/string.h"
27 : #include "dumputils.h"
28 : #include "fe_utils/string_utils.h"
29 : #include "filter.h"
30 : #include "getopt_long.h"
31 : #include "pg_backup.h"
32 :
33 : /* version string we expect back from pg_dump */
34 : #define PGDUMP_VERSIONSTR "pg_dump (PostgreSQL) " PG_VERSION "\n"
35 :
36 : typedef struct
37 : {
38 : uint32 status;
39 : uint32 hashval;
40 : char *rolename;
41 : } RoleNameEntry;
42 :
43 : #define SH_PREFIX rolename
44 : #define SH_ELEMENT_TYPE RoleNameEntry
45 : #define SH_KEY_TYPE char *
46 : #define SH_KEY rolename
47 : #define SH_HASH_KEY(tb, key) hash_string(key)
48 : #define SH_EQUAL(tb, a, b) (strcmp(a, b) == 0)
49 : #define SH_STORE_HASH
50 : #define SH_GET_HASH(tb, a) (a)->hashval
51 : #define SH_SCOPE static inline
52 : #define SH_RAW_ALLOCATOR pg_malloc0
53 : #define SH_DECLARE
54 : #define SH_DEFINE
55 : #include "lib/simplehash.h"
56 :
57 : static void help(void);
58 :
59 : static void dropRoles(PGconn *conn);
60 : static void dumpRoles(PGconn *conn);
61 : static void dumpRoleMembership(PGconn *conn);
62 : static void dumpRoleGUCPrivs(PGconn *conn);
63 : static void dropTablespaces(PGconn *conn);
64 : static void dumpTablespaces(PGconn *conn);
65 : static void dropDBs(PGconn *conn);
66 : static void dumpUserConfig(PGconn *conn, const char *username);
67 : static void dumpDatabases(PGconn *conn);
68 : static void dumpTimestamp(const char *msg);
69 : static int runPgDump(const char *dbname, const char *create_opts);
70 : static void buildShSecLabels(PGconn *conn,
71 : const char *catalog_name, Oid objectId,
72 : const char *objtype, const char *objname,
73 : PQExpBuffer buffer);
74 : static PGconn *connectDatabase(const char *dbname,
75 : const char *connection_string, const char *pghost,
76 : const char *pgport, const char *pguser,
77 : trivalue prompt_password, bool fail_on_error);
78 : static char *constructConnStr(const char **keywords, const char **values);
79 : static PGresult *executeQuery(PGconn *conn, const char *query);
80 : static void executeCommand(PGconn *conn, const char *query);
81 : static void expand_dbname_patterns(PGconn *conn, SimpleStringList *patterns,
82 : SimpleStringList *names);
83 : static void read_dumpall_filters(const char *filename, SimpleStringList *patterns);
84 :
85 : static char pg_dump_bin[MAXPGPATH];
86 : static const char *progname;
87 : static PQExpBuffer pgdumpopts;
88 : static char *connstr = "";
89 : static bool output_clean = false;
90 : static bool skip_acls = false;
91 : static bool verbose = false;
92 : static bool dosync = true;
93 :
94 : static int binary_upgrade = 0;
95 : static int column_inserts = 0;
96 : static int disable_dollar_quoting = 0;
97 : static int disable_triggers = 0;
98 : static int if_exists = 0;
99 : static int inserts = 0;
100 : static int no_table_access_method = 0;
101 : static int no_tablespaces = 0;
102 : static int use_setsessauth = 0;
103 : static int no_comments = 0;
104 : static int no_publications = 0;
105 : static int no_security_labels = 0;
106 : static int no_subscriptions = 0;
107 : static int no_toast_compression = 0;
108 : static int no_unlogged_table_data = 0;
109 : static int no_role_passwords = 0;
110 : static int server_version;
111 : static int load_via_partition_root = 0;
112 : static int on_conflict_do_nothing = 0;
113 :
114 : static char role_catalog[10];
115 : #define PG_AUTHID "pg_authid"
116 : #define PG_ROLES "pg_roles "
117 :
118 : static FILE *OPF;
119 : static char *filename = NULL;
120 :
121 : static SimpleStringList database_exclude_patterns = {NULL, NULL};
122 : static SimpleStringList database_exclude_names = {NULL, NULL};
123 :
124 : #define exit_nicely(code) exit(code)
125 :
126 : int
127 96 : main(int argc, char *argv[])
128 : {
129 : static struct option long_options[] = {
130 : {"data-only", no_argument, NULL, 'a'},
131 : {"clean", no_argument, NULL, 'c'},
132 : {"encoding", required_argument, NULL, 'E'},
133 : {"file", required_argument, NULL, 'f'},
134 : {"globals-only", no_argument, NULL, 'g'},
135 : {"host", required_argument, NULL, 'h'},
136 : {"dbname", required_argument, NULL, 'd'},
137 : {"database", required_argument, NULL, 'l'},
138 : {"no-owner", no_argument, NULL, 'O'},
139 : {"port", required_argument, NULL, 'p'},
140 : {"roles-only", no_argument, NULL, 'r'},
141 : {"schema-only", no_argument, NULL, 's'},
142 : {"superuser", required_argument, NULL, 'S'},
143 : {"tablespaces-only", no_argument, NULL, 't'},
144 : {"username", required_argument, NULL, 'U'},
145 : {"verbose", no_argument, NULL, 'v'},
146 : {"no-password", no_argument, NULL, 'w'},
147 : {"password", no_argument, NULL, 'W'},
148 : {"no-privileges", no_argument, NULL, 'x'},
149 : {"no-acl", no_argument, NULL, 'x'},
150 :
151 : /*
152 : * the following options don't have an equivalent short option letter
153 : */
154 : {"attribute-inserts", no_argument, &column_inserts, 1},
155 : {"binary-upgrade", no_argument, &binary_upgrade, 1},
156 : {"column-inserts", no_argument, &column_inserts, 1},
157 : {"disable-dollar-quoting", no_argument, &disable_dollar_quoting, 1},
158 : {"disable-triggers", no_argument, &disable_triggers, 1},
159 : {"exclude-database", required_argument, NULL, 6},
160 : {"extra-float-digits", required_argument, NULL, 5},
161 : {"if-exists", no_argument, &if_exists, 1},
162 : {"inserts", no_argument, &inserts, 1},
163 : {"lock-wait-timeout", required_argument, NULL, 2},
164 : {"no-table-access-method", no_argument, &no_table_access_method, 1},
165 : {"no-tablespaces", no_argument, &no_tablespaces, 1},
166 : {"quote-all-identifiers", no_argument, "e_all_identifiers, 1},
167 : {"load-via-partition-root", no_argument, &load_via_partition_root, 1},
168 : {"role", required_argument, NULL, 3},
169 : {"use-set-session-authorization", no_argument, &use_setsessauth, 1},
170 : {"no-comments", no_argument, &no_comments, 1},
171 : {"no-publications", no_argument, &no_publications, 1},
172 : {"no-role-passwords", no_argument, &no_role_passwords, 1},
173 : {"no-security-labels", no_argument, &no_security_labels, 1},
174 : {"no-subscriptions", no_argument, &no_subscriptions, 1},
175 : {"no-sync", no_argument, NULL, 4},
176 : {"no-toast-compression", no_argument, &no_toast_compression, 1},
177 : {"no-unlogged-table-data", no_argument, &no_unlogged_table_data, 1},
178 : {"on-conflict-do-nothing", no_argument, &on_conflict_do_nothing, 1},
179 : {"rows-per-insert", required_argument, NULL, 7},
180 : {"filter", required_argument, NULL, 8},
181 :
182 : {NULL, 0, NULL, 0}
183 : };
184 :
185 96 : char *pghost = NULL;
186 96 : char *pgport = NULL;
187 96 : char *pguser = NULL;
188 96 : char *pgdb = NULL;
189 96 : char *use_role = NULL;
190 96 : const char *dumpencoding = NULL;
191 96 : trivalue prompt_password = TRI_DEFAULT;
192 96 : bool data_only = false;
193 96 : bool globals_only = false;
194 96 : bool roles_only = false;
195 96 : bool tablespaces_only = false;
196 : PGconn *conn;
197 : int encoding;
198 : const char *std_strings;
199 : int c,
200 : ret;
201 : int optindex;
202 :
203 96 : pg_logging_init(argv[0]);
204 96 : pg_logging_set_level(PG_LOG_WARNING);
205 96 : set_pglocale_pgservice(argv[0], PG_TEXTDOMAIN("pg_dump"));
206 96 : progname = get_progname(argv[0]);
207 :
208 96 : if (argc > 1)
209 : {
210 96 : if (strcmp(argv[1], "--help") == 0 || strcmp(argv[1], "-?") == 0)
211 : {
212 2 : help();
213 2 : exit_nicely(0);
214 : }
215 94 : if (strcmp(argv[1], "--version") == 0 || strcmp(argv[1], "-V") == 0)
216 : {
217 20 : puts("pg_dumpall (PostgreSQL) " PG_VERSION);
218 20 : exit_nicely(0);
219 : }
220 : }
221 :
222 74 : if ((ret = find_other_exec(argv[0], "pg_dump", PGDUMP_VERSIONSTR,
223 : pg_dump_bin)) < 0)
224 : {
225 : char full_path[MAXPGPATH];
226 :
227 0 : if (find_my_exec(argv[0], full_path) < 0)
228 0 : strlcpy(full_path, progname, sizeof(full_path));
229 :
230 0 : if (ret == -1)
231 0 : pg_fatal("program \"%s\" is needed by %s but was not found in the same directory as \"%s\"",
232 : "pg_dump", progname, full_path);
233 : else
234 0 : pg_fatal("program \"%s\" was found by \"%s\" but was not the same version as %s",
235 : "pg_dump", full_path, progname);
236 : }
237 :
238 74 : pgdumpopts = createPQExpBuffer();
239 :
240 316 : while ((c = getopt_long(argc, argv, "acd:E:f:gh:l:Op:rsS:tU:vwWx", long_options, &optindex)) != -1)
241 : {
242 250 : switch (c)
243 : {
244 0 : case 'a':
245 0 : data_only = true;
246 0 : appendPQExpBufferStr(pgdumpopts, " -a");
247 0 : break;
248 :
249 2 : case 'c':
250 2 : output_clean = true;
251 2 : break;
252 :
253 16 : case 'd':
254 16 : connstr = pg_strdup(optarg);
255 16 : break;
256 :
257 0 : case 'E':
258 0 : dumpencoding = pg_strdup(optarg);
259 0 : appendPQExpBufferStr(pgdumpopts, " -E ");
260 0 : appendShellString(pgdumpopts, optarg);
261 0 : break;
262 :
263 52 : case 'f':
264 52 : filename = pg_strdup(optarg);
265 52 : appendPQExpBufferStr(pgdumpopts, " -f ");
266 52 : appendShellString(pgdumpopts, filename);
267 52 : break;
268 :
269 22 : case 'g':
270 22 : globals_only = true;
271 22 : break;
272 :
273 8 : case 'h':
274 8 : pghost = pg_strdup(optarg);
275 8 : break;
276 :
277 2 : case 'l':
278 2 : pgdb = pg_strdup(optarg);
279 2 : break;
280 :
281 0 : case 'O':
282 0 : appendPQExpBufferStr(pgdumpopts, " -O");
283 0 : break;
284 :
285 24 : case 'p':
286 24 : pgport = pg_strdup(optarg);
287 24 : break;
288 :
289 14 : case 'r':
290 14 : roles_only = true;
291 14 : break;
292 :
293 0 : case 's':
294 0 : appendPQExpBufferStr(pgdumpopts, " -s");
295 0 : break;
296 :
297 0 : case 'S':
298 0 : appendPQExpBufferStr(pgdumpopts, " -S ");
299 0 : appendShellString(pgdumpopts, optarg);
300 0 : break;
301 :
302 4 : case 't':
303 4 : tablespaces_only = true;
304 4 : break;
305 :
306 22 : case 'U':
307 22 : pguser = pg_strdup(optarg);
308 22 : break;
309 :
310 4 : case 'v':
311 4 : verbose = true;
312 4 : pg_logging_increase_verbosity();
313 4 : appendPQExpBufferStr(pgdumpopts, " -v");
314 4 : break;
315 :
316 0 : case 'w':
317 0 : prompt_password = TRI_NO;
318 0 : appendPQExpBufferStr(pgdumpopts, " -w");
319 0 : break;
320 :
321 0 : case 'W':
322 0 : prompt_password = TRI_YES;
323 0 : appendPQExpBufferStr(pgdumpopts, " -W");
324 0 : break;
325 :
326 0 : case 'x':
327 0 : skip_acls = true;
328 0 : appendPQExpBufferStr(pgdumpopts, " -x");
329 0 : break;
330 :
331 24 : case 0:
332 24 : break;
333 :
334 0 : case 2:
335 0 : appendPQExpBufferStr(pgdumpopts, " --lock-wait-timeout ");
336 0 : appendShellString(pgdumpopts, optarg);
337 0 : break;
338 :
339 0 : case 3:
340 0 : use_role = pg_strdup(optarg);
341 0 : appendPQExpBufferStr(pgdumpopts, " --role ");
342 0 : appendShellString(pgdumpopts, use_role);
343 0 : break;
344 :
345 34 : case 4:
346 34 : dosync = false;
347 34 : appendPQExpBufferStr(pgdumpopts, " --no-sync");
348 34 : break;
349 :
350 0 : case 5:
351 0 : appendPQExpBufferStr(pgdumpopts, " --extra-float-digits ");
352 0 : appendShellString(pgdumpopts, optarg);
353 0 : break;
354 :
355 10 : case 6:
356 10 : simple_string_list_append(&database_exclude_patterns, optarg);
357 10 : break;
358 :
359 0 : case 7:
360 0 : appendPQExpBufferStr(pgdumpopts, " --rows-per-insert ");
361 0 : appendShellString(pgdumpopts, optarg);
362 0 : break;
363 :
364 10 : case 8:
365 10 : read_dumpall_filters(optarg, &database_exclude_patterns);
366 4 : break;
367 :
368 2 : default:
369 : /* getopt_long already emitted a complaint */
370 2 : pg_log_error_hint("Try \"%s --help\" for more information.", progname);
371 2 : exit_nicely(1);
372 : }
373 : }
374 :
375 : /* Complain if any arguments remain */
376 66 : if (optind < argc)
377 : {
378 2 : pg_log_error("too many command-line arguments (first is \"%s\")",
379 : argv[optind]);
380 2 : pg_log_error_hint("Try \"%s --help\" for more information.", progname);
381 2 : exit_nicely(1);
382 : }
383 :
384 64 : if (database_exclude_patterns.head != NULL &&
385 10 : (globals_only || roles_only || tablespaces_only))
386 : {
387 4 : pg_log_error("option --exclude-database cannot be used together with -g/--globals-only, -r/--roles-only, or -t/--tablespaces-only");
388 4 : pg_log_error_hint("Try \"%s --help\" for more information.", progname);
389 4 : exit_nicely(1);
390 : }
391 :
392 : /* Make sure the user hasn't specified a mix of globals-only options */
393 60 : if (globals_only && roles_only)
394 : {
395 2 : pg_log_error("options -g/--globals-only and -r/--roles-only cannot be used together");
396 2 : pg_log_error_hint("Try \"%s --help\" for more information.", progname);
397 2 : exit_nicely(1);
398 : }
399 :
400 58 : if (globals_only && tablespaces_only)
401 : {
402 2 : pg_log_error("options -g/--globals-only and -t/--tablespaces-only cannot be used together");
403 2 : pg_log_error_hint("Try \"%s --help\" for more information.", progname);
404 2 : exit_nicely(1);
405 : }
406 :
407 56 : if (if_exists && !output_clean)
408 2 : pg_fatal("option --if-exists requires option -c/--clean");
409 :
410 54 : if (roles_only && tablespaces_only)
411 : {
412 2 : pg_log_error("options -r/--roles-only and -t/--tablespaces-only cannot be used together");
413 2 : pg_log_error_hint("Try \"%s --help\" for more information.", progname);
414 2 : exit_nicely(1);
415 : }
416 :
417 : /*
418 : * If password values are not required in the dump, switch to using
419 : * pg_roles which is equally useful, just more likely to have unrestricted
420 : * access than pg_authid.
421 : */
422 52 : if (no_role_passwords)
423 0 : sprintf(role_catalog, "%s", PG_ROLES);
424 : else
425 52 : sprintf(role_catalog, "%s", PG_AUTHID);
426 :
427 : /* Add long options to the pg_dump argument list */
428 52 : if (binary_upgrade)
429 8 : appendPQExpBufferStr(pgdumpopts, " --binary-upgrade");
430 52 : if (column_inserts)
431 0 : appendPQExpBufferStr(pgdumpopts, " --column-inserts");
432 52 : if (disable_dollar_quoting)
433 0 : appendPQExpBufferStr(pgdumpopts, " --disable-dollar-quoting");
434 52 : if (disable_triggers)
435 0 : appendPQExpBufferStr(pgdumpopts, " --disable-triggers");
436 52 : if (inserts)
437 0 : appendPQExpBufferStr(pgdumpopts, " --inserts");
438 52 : if (no_table_access_method)
439 0 : appendPQExpBufferStr(pgdumpopts, " --no-table-access-method");
440 52 : if (no_tablespaces)
441 0 : appendPQExpBufferStr(pgdumpopts, " --no-tablespaces");
442 52 : if (quote_all_identifiers)
443 8 : appendPQExpBufferStr(pgdumpopts, " --quote-all-identifiers");
444 52 : if (load_via_partition_root)
445 0 : appendPQExpBufferStr(pgdumpopts, " --load-via-partition-root");
446 52 : if (use_setsessauth)
447 0 : appendPQExpBufferStr(pgdumpopts, " --use-set-session-authorization");
448 52 : if (no_comments)
449 0 : appendPQExpBufferStr(pgdumpopts, " --no-comments");
450 52 : if (no_publications)
451 0 : appendPQExpBufferStr(pgdumpopts, " --no-publications");
452 52 : if (no_security_labels)
453 0 : appendPQExpBufferStr(pgdumpopts, " --no-security-labels");
454 52 : if (no_subscriptions)
455 0 : appendPQExpBufferStr(pgdumpopts, " --no-subscriptions");
456 52 : if (no_toast_compression)
457 0 : appendPQExpBufferStr(pgdumpopts, " --no-toast-compression");
458 52 : if (no_unlogged_table_data)
459 6 : appendPQExpBufferStr(pgdumpopts, " --no-unlogged-table-data");
460 52 : if (on_conflict_do_nothing)
461 0 : appendPQExpBufferStr(pgdumpopts, " --on-conflict-do-nothing");
462 :
463 : /*
464 : * If there was a database specified on the command line, use that,
465 : * otherwise try to connect to database "postgres", and failing that
466 : * "template1".
467 : */
468 52 : if (pgdb)
469 : {
470 2 : conn = connectDatabase(pgdb, connstr, pghost, pgport, pguser,
471 : prompt_password, false);
472 :
473 2 : if (!conn)
474 0 : pg_fatal("could not connect to database \"%s\"", pgdb);
475 : }
476 : else
477 : {
478 50 : conn = connectDatabase("postgres", connstr, pghost, pgport, pguser,
479 : prompt_password, false);
480 50 : if (!conn)
481 0 : conn = connectDatabase("template1", connstr, pghost, pgport, pguser,
482 : prompt_password, true);
483 :
484 50 : if (!conn)
485 : {
486 0 : pg_log_error("could not connect to databases \"postgres\" or \"template1\"\n"
487 : "Please specify an alternative database.");
488 0 : pg_log_error_hint("Try \"%s --help\" for more information.", progname);
489 0 : exit_nicely(1);
490 : }
491 : }
492 :
493 : /*
494 : * Get a list of database names that match the exclude patterns
495 : */
496 52 : expand_dbname_patterns(conn, &database_exclude_patterns,
497 : &database_exclude_names);
498 :
499 : /*
500 : * Open the output file if required, otherwise use stdout
501 : */
502 48 : if (filename)
503 : {
504 44 : OPF = fopen(filename, PG_BINARY_W);
505 44 : if (!OPF)
506 0 : pg_fatal("could not open output file \"%s\": %m",
507 : filename);
508 : }
509 : else
510 4 : OPF = stdout;
511 :
512 : /*
513 : * Set the client encoding if requested.
514 : */
515 48 : if (dumpencoding)
516 : {
517 0 : if (PQsetClientEncoding(conn, dumpencoding) < 0)
518 0 : pg_fatal("invalid client encoding \"%s\" specified",
519 : dumpencoding);
520 : }
521 :
522 : /*
523 : * Get the active encoding and the standard_conforming_strings setting, so
524 : * we know how to escape strings.
525 : */
526 48 : encoding = PQclientEncoding(conn);
527 48 : std_strings = PQparameterStatus(conn, "standard_conforming_strings");
528 48 : if (!std_strings)
529 0 : std_strings = "off";
530 :
531 : /* Set the role if requested */
532 48 : if (use_role)
533 : {
534 0 : PQExpBuffer query = createPQExpBuffer();
535 :
536 0 : appendPQExpBuffer(query, "SET ROLE %s", fmtId(use_role));
537 0 : executeCommand(conn, query->data);
538 0 : destroyPQExpBuffer(query);
539 : }
540 :
541 : /* Force quoting of all identifiers if requested. */
542 48 : if (quote_all_identifiers)
543 8 : executeCommand(conn, "SET quote_all_identifiers = true");
544 :
545 48 : fprintf(OPF, "--\n-- PostgreSQL database cluster dump\n--\n\n");
546 48 : if (verbose)
547 4 : dumpTimestamp("Started on");
548 :
549 : /*
550 : * We used to emit \connect postgres here, but that served no purpose
551 : * other than to break things for installations without a postgres
552 : * database. Everything we're restoring here is a global, so whichever
553 : * database we're connected to at the moment is fine.
554 : */
555 :
556 : /* Restore will need to write to the target cluster */
557 48 : fprintf(OPF, "SET default_transaction_read_only = off;\n\n");
558 :
559 : /* Replicate encoding and std_strings in output */
560 48 : fprintf(OPF, "SET client_encoding = '%s';\n",
561 : pg_encoding_to_char(encoding));
562 48 : fprintf(OPF, "SET standard_conforming_strings = %s;\n", std_strings);
563 48 : if (strcmp(std_strings, "off") == 0)
564 0 : fprintf(OPF, "SET escape_string_warning = off;\n");
565 48 : fprintf(OPF, "\n");
566 :
567 48 : if (!data_only)
568 : {
569 : /*
570 : * If asked to --clean, do that first. We can avoid detailed
571 : * dependency analysis because databases never depend on each other,
572 : * and tablespaces never depend on each other. Roles could have
573 : * grants to each other, but DROP ROLE will clean those up silently.
574 : */
575 48 : if (output_clean)
576 : {
577 2 : if (!globals_only && !roles_only && !tablespaces_only)
578 0 : dropDBs(conn);
579 :
580 2 : if (!roles_only && !no_tablespaces)
581 2 : dropTablespaces(conn);
582 :
583 2 : if (!tablespaces_only)
584 2 : dropRoles(conn);
585 : }
586 :
587 : /*
588 : * Now create objects as requested. Be careful that option logic here
589 : * is the same as for drops above.
590 : */
591 48 : if (!tablespaces_only)
592 : {
593 : /* Dump roles (users) */
594 48 : dumpRoles(conn);
595 :
596 : /* Dump role memberships */
597 48 : dumpRoleMembership(conn);
598 :
599 : /* Dump role GUC privileges */
600 48 : if (server_version >= 150000 && !skip_acls)
601 48 : dumpRoleGUCPrivs(conn);
602 : }
603 :
604 : /* Dump tablespaces */
605 48 : if (!roles_only && !no_tablespaces)
606 38 : dumpTablespaces(conn);
607 : }
608 :
609 48 : if (!globals_only && !roles_only && !tablespaces_only)
610 24 : dumpDatabases(conn);
611 :
612 46 : PQfinish(conn);
613 :
614 46 : if (verbose)
615 4 : dumpTimestamp("Completed on");
616 46 : fprintf(OPF, "--\n-- PostgreSQL database cluster dump complete\n--\n\n");
617 :
618 46 : if (filename)
619 : {
620 42 : fclose(OPF);
621 :
622 : /* sync the resulting file, errors are not fatal */
623 42 : if (dosync)
624 12 : (void) fsync_fname(filename, false);
625 : }
626 :
627 46 : exit_nicely(0);
628 : }
629 :
630 :
631 : static void
632 2 : help(void)
633 : {
634 2 : printf(_("%s extracts a PostgreSQL database cluster into an SQL script file.\n\n"), progname);
635 2 : printf(_("Usage:\n"));
636 2 : printf(_(" %s [OPTION]...\n"), progname);
637 :
638 2 : printf(_("\nGeneral options:\n"));
639 2 : printf(_(" -f, --file=FILENAME output file name\n"));
640 2 : printf(_(" -v, --verbose verbose mode\n"));
641 2 : printf(_(" -V, --version output version information, then exit\n"));
642 2 : printf(_(" --lock-wait-timeout=TIMEOUT fail after waiting TIMEOUT for a table lock\n"));
643 2 : printf(_(" -?, --help show this help, then exit\n"));
644 2 : printf(_("\nOptions controlling the output content:\n"));
645 2 : printf(_(" -a, --data-only dump only the data, not the schema\n"));
646 2 : printf(_(" -c, --clean clean (drop) databases before recreating\n"));
647 2 : printf(_(" -E, --encoding=ENCODING dump the data in encoding ENCODING\n"));
648 2 : printf(_(" -g, --globals-only dump only global objects, no databases\n"));
649 2 : printf(_(" -O, --no-owner skip restoration of object ownership\n"));
650 2 : printf(_(" -r, --roles-only dump only roles, no databases or tablespaces\n"));
651 2 : printf(_(" -s, --schema-only dump only the schema, no data\n"));
652 2 : printf(_(" -S, --superuser=NAME superuser user name to use in the dump\n"));
653 2 : printf(_(" -t, --tablespaces-only dump only tablespaces, no databases or roles\n"));
654 2 : printf(_(" -x, --no-privileges do not dump privileges (grant/revoke)\n"));
655 2 : printf(_(" --binary-upgrade for use by upgrade utilities only\n"));
656 2 : printf(_(" --column-inserts dump data as INSERT commands with column names\n"));
657 2 : printf(_(" --disable-dollar-quoting disable dollar quoting, use SQL standard quoting\n"));
658 2 : printf(_(" --disable-triggers disable triggers during data-only restore\n"));
659 2 : printf(_(" --exclude-database=PATTERN exclude databases whose name matches PATTERN\n"));
660 2 : printf(_(" --extra-float-digits=NUM override default setting for extra_float_digits\n"));
661 2 : printf(_(" --filter=FILENAME exclude databases specified in FILENAME\n"));
662 2 : printf(_(" --if-exists use IF EXISTS when dropping objects\n"));
663 2 : printf(_(" --inserts dump data as INSERT commands, rather than COPY\n"));
664 2 : printf(_(" --load-via-partition-root load partitions via the root table\n"));
665 2 : printf(_(" --no-comments do not dump comments\n"));
666 2 : printf(_(" --no-publications do not dump publications\n"));
667 2 : printf(_(" --no-role-passwords do not dump passwords for roles\n"));
668 2 : printf(_(" --no-security-labels do not dump security label assignments\n"));
669 2 : printf(_(" --no-subscriptions do not dump subscriptions\n"));
670 2 : printf(_(" --no-sync do not wait for changes to be written safely to disk\n"));
671 2 : printf(_(" --no-table-access-method do not dump table access methods\n"));
672 2 : printf(_(" --no-tablespaces do not dump tablespace assignments\n"));
673 2 : printf(_(" --no-toast-compression do not dump TOAST compression methods\n"));
674 2 : printf(_(" --no-unlogged-table-data do not dump unlogged table data\n"));
675 2 : printf(_(" --on-conflict-do-nothing add ON CONFLICT DO NOTHING to INSERT commands\n"));
676 2 : printf(_(" --quote-all-identifiers quote all identifiers, even if not key words\n"));
677 2 : printf(_(" --rows-per-insert=NROWS number of rows per INSERT; implies --inserts\n"));
678 2 : printf(_(" --use-set-session-authorization\n"
679 : " use SET SESSION AUTHORIZATION commands instead of\n"
680 : " ALTER OWNER commands to set ownership\n"));
681 :
682 2 : printf(_("\nConnection options:\n"));
683 2 : printf(_(" -d, --dbname=CONNSTR connect using connection string\n"));
684 2 : printf(_(" -h, --host=HOSTNAME database server host or socket directory\n"));
685 2 : printf(_(" -l, --database=DBNAME alternative default database\n"));
686 2 : printf(_(" -p, --port=PORT database server port number\n"));
687 2 : printf(_(" -U, --username=NAME connect as specified database user\n"));
688 2 : printf(_(" -w, --no-password never prompt for password\n"));
689 2 : printf(_(" -W, --password force password prompt (should happen automatically)\n"));
690 2 : printf(_(" --role=ROLENAME do SET ROLE before dump\n"));
691 :
692 2 : printf(_("\nIf -f/--file is not used, then the SQL script will be written to the standard\n"
693 : "output.\n\n"));
694 2 : printf(_("Report bugs to <%s>.\n"), PACKAGE_BUGREPORT);
695 2 : printf(_("%s home page: <%s>\n"), PACKAGE_NAME, PACKAGE_URL);
696 2 : }
697 :
698 :
699 : /*
700 : * Drop roles
701 : */
702 : static void
703 2 : dropRoles(PGconn *conn)
704 : {
705 2 : PQExpBuffer buf = createPQExpBuffer();
706 : PGresult *res;
707 : int i_rolname;
708 : int i;
709 :
710 2 : if (server_version >= 90600)
711 2 : printfPQExpBuffer(buf,
712 : "SELECT rolname "
713 : "FROM %s "
714 : "WHERE rolname !~ '^pg_' "
715 : "ORDER BY 1", role_catalog);
716 : else
717 0 : printfPQExpBuffer(buf,
718 : "SELECT rolname "
719 : "FROM %s "
720 : "ORDER BY 1", role_catalog);
721 :
722 2 : res = executeQuery(conn, buf->data);
723 :
724 2 : i_rolname = PQfnumber(res, "rolname");
725 :
726 2 : if (PQntuples(res) > 0)
727 2 : fprintf(OPF, "--\n-- Drop roles\n--\n\n");
728 :
729 8 : for (i = 0; i < PQntuples(res); i++)
730 : {
731 : const char *rolename;
732 :
733 6 : rolename = PQgetvalue(res, i, i_rolname);
734 :
735 12 : fprintf(OPF, "DROP ROLE %s%s;\n",
736 6 : if_exists ? "IF EXISTS " : "",
737 : fmtId(rolename));
738 : }
739 :
740 2 : PQclear(res);
741 2 : destroyPQExpBuffer(buf);
742 :
743 2 : fprintf(OPF, "\n\n");
744 2 : }
745 :
746 : /*
747 : * Dump roles
748 : */
749 : static void
750 48 : dumpRoles(PGconn *conn)
751 : {
752 48 : PQExpBuffer buf = createPQExpBuffer();
753 : PGresult *res;
754 : int i_oid,
755 : i_rolname,
756 : i_rolsuper,
757 : i_rolinherit,
758 : i_rolcreaterole,
759 : i_rolcreatedb,
760 : i_rolcanlogin,
761 : i_rolconnlimit,
762 : i_rolpassword,
763 : i_rolvaliduntil,
764 : i_rolreplication,
765 : i_rolbypassrls,
766 : i_rolcomment,
767 : i_is_current_user;
768 : int i;
769 :
770 : /*
771 : * Notes: rolconfig is dumped later, and pg_authid must be used for
772 : * extracting rolcomment regardless of role_catalog.
773 : */
774 48 : if (server_version >= 90600)
775 48 : printfPQExpBuffer(buf,
776 : "SELECT oid, rolname, rolsuper, rolinherit, "
777 : "rolcreaterole, rolcreatedb, "
778 : "rolcanlogin, rolconnlimit, rolpassword, "
779 : "rolvaliduntil, rolreplication, rolbypassrls, "
780 : "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, "
781 : "rolname = current_user AS is_current_user "
782 : "FROM %s "
783 : "WHERE rolname !~ '^pg_' "
784 : "ORDER BY 2", role_catalog);
785 0 : else if (server_version >= 90500)
786 0 : printfPQExpBuffer(buf,
787 : "SELECT oid, rolname, rolsuper, rolinherit, "
788 : "rolcreaterole, rolcreatedb, "
789 : "rolcanlogin, rolconnlimit, rolpassword, "
790 : "rolvaliduntil, rolreplication, rolbypassrls, "
791 : "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, "
792 : "rolname = current_user AS is_current_user "
793 : "FROM %s "
794 : "ORDER BY 2", role_catalog);
795 : else
796 0 : printfPQExpBuffer(buf,
797 : "SELECT oid, rolname, rolsuper, rolinherit, "
798 : "rolcreaterole, rolcreatedb, "
799 : "rolcanlogin, rolconnlimit, rolpassword, "
800 : "rolvaliduntil, rolreplication, "
801 : "false as rolbypassrls, "
802 : "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, "
803 : "rolname = current_user AS is_current_user "
804 : "FROM %s "
805 : "ORDER BY 2", role_catalog);
806 :
807 48 : res = executeQuery(conn, buf->data);
808 :
809 48 : i_oid = PQfnumber(res, "oid");
810 48 : i_rolname = PQfnumber(res, "rolname");
811 48 : i_rolsuper = PQfnumber(res, "rolsuper");
812 48 : i_rolinherit = PQfnumber(res, "rolinherit");
813 48 : i_rolcreaterole = PQfnumber(res, "rolcreaterole");
814 48 : i_rolcreatedb = PQfnumber(res, "rolcreatedb");
815 48 : i_rolcanlogin = PQfnumber(res, "rolcanlogin");
816 48 : i_rolconnlimit = PQfnumber(res, "rolconnlimit");
817 48 : i_rolpassword = PQfnumber(res, "rolpassword");
818 48 : i_rolvaliduntil = PQfnumber(res, "rolvaliduntil");
819 48 : i_rolreplication = PQfnumber(res, "rolreplication");
820 48 : i_rolbypassrls = PQfnumber(res, "rolbypassrls");
821 48 : i_rolcomment = PQfnumber(res, "rolcomment");
822 48 : i_is_current_user = PQfnumber(res, "is_current_user");
823 :
824 48 : if (PQntuples(res) > 0)
825 48 : fprintf(OPF, "--\n-- Roles\n--\n\n");
826 :
827 176 : for (i = 0; i < PQntuples(res); i++)
828 : {
829 : const char *rolename;
830 : Oid auth_oid;
831 :
832 128 : auth_oid = atooid(PQgetvalue(res, i, i_oid));
833 128 : rolename = PQgetvalue(res, i, i_rolname);
834 :
835 128 : if (strncmp(rolename, "pg_", 3) == 0)
836 : {
837 0 : pg_log_warning("role name starting with \"pg_\" skipped (%s)",
838 : rolename);
839 0 : continue;
840 : }
841 :
842 128 : resetPQExpBuffer(buf);
843 :
844 128 : if (binary_upgrade)
845 : {
846 8 : appendPQExpBufferStr(buf, "\n-- For binary upgrade, must preserve pg_authid.oid\n");
847 8 : appendPQExpBuffer(buf,
848 : "SELECT pg_catalog.binary_upgrade_set_next_pg_authid_oid('%u'::pg_catalog.oid);\n\n",
849 : auth_oid);
850 : }
851 :
852 : /*
853 : * We dump CREATE ROLE followed by ALTER ROLE to ensure that the role
854 : * will acquire the right properties even if it already exists (ie, it
855 : * won't hurt for the CREATE to fail). This is particularly important
856 : * for the role we are connected as, since even with --clean we will
857 : * have failed to drop it. binary_upgrade cannot generate any errors,
858 : * so we assume the current role is already created.
859 : */
860 128 : if (!binary_upgrade ||
861 8 : strcmp(PQgetvalue(res, i, i_is_current_user), "f") == 0)
862 120 : appendPQExpBuffer(buf, "CREATE ROLE %s;\n", fmtId(rolename));
863 128 : appendPQExpBuffer(buf, "ALTER ROLE %s WITH", fmtId(rolename));
864 :
865 128 : if (strcmp(PQgetvalue(res, i, i_rolsuper), "t") == 0)
866 104 : appendPQExpBufferStr(buf, " SUPERUSER");
867 : else
868 24 : appendPQExpBufferStr(buf, " NOSUPERUSER");
869 :
870 128 : if (strcmp(PQgetvalue(res, i, i_rolinherit), "t") == 0)
871 128 : appendPQExpBufferStr(buf, " INHERIT");
872 : else
873 0 : appendPQExpBufferStr(buf, " NOINHERIT");
874 :
875 128 : if (strcmp(PQgetvalue(res, i, i_rolcreaterole), "t") == 0)
876 104 : appendPQExpBufferStr(buf, " CREATEROLE");
877 : else
878 24 : appendPQExpBufferStr(buf, " NOCREATEROLE");
879 :
880 128 : if (strcmp(PQgetvalue(res, i, i_rolcreatedb), "t") == 0)
881 104 : appendPQExpBufferStr(buf, " CREATEDB");
882 : else
883 24 : appendPQExpBufferStr(buf, " NOCREATEDB");
884 :
885 128 : if (strcmp(PQgetvalue(res, i, i_rolcanlogin), "t") == 0)
886 106 : appendPQExpBufferStr(buf, " LOGIN");
887 : else
888 22 : appendPQExpBufferStr(buf, " NOLOGIN");
889 :
890 128 : if (strcmp(PQgetvalue(res, i, i_rolreplication), "t") == 0)
891 48 : appendPQExpBufferStr(buf, " REPLICATION");
892 : else
893 80 : appendPQExpBufferStr(buf, " NOREPLICATION");
894 :
895 128 : if (strcmp(PQgetvalue(res, i, i_rolbypassrls), "t") == 0)
896 48 : appendPQExpBufferStr(buf, " BYPASSRLS");
897 : else
898 80 : appendPQExpBufferStr(buf, " NOBYPASSRLS");
899 :
900 128 : if (strcmp(PQgetvalue(res, i, i_rolconnlimit), "-1") != 0)
901 0 : appendPQExpBuffer(buf, " CONNECTION LIMIT %s",
902 : PQgetvalue(res, i, i_rolconnlimit));
903 :
904 :
905 128 : if (!PQgetisnull(res, i, i_rolpassword) && !no_role_passwords)
906 : {
907 0 : appendPQExpBufferStr(buf, " PASSWORD ");
908 0 : appendStringLiteralConn(buf, PQgetvalue(res, i, i_rolpassword), conn);
909 : }
910 :
911 128 : if (!PQgetisnull(res, i, i_rolvaliduntil))
912 0 : appendPQExpBuffer(buf, " VALID UNTIL '%s'",
913 : PQgetvalue(res, i, i_rolvaliduntil));
914 :
915 128 : appendPQExpBufferStr(buf, ";\n");
916 :
917 128 : if (!no_comments && !PQgetisnull(res, i, i_rolcomment))
918 : {
919 0 : appendPQExpBuffer(buf, "COMMENT ON ROLE %s IS ", fmtId(rolename));
920 0 : appendStringLiteralConn(buf, PQgetvalue(res, i, i_rolcomment), conn);
921 0 : appendPQExpBufferStr(buf, ";\n");
922 : }
923 :
924 128 : if (!no_security_labels)
925 128 : buildShSecLabels(conn, "pg_authid", auth_oid,
926 : "ROLE", rolename,
927 : buf);
928 :
929 128 : fprintf(OPF, "%s", buf->data);
930 : }
931 :
932 : /*
933 : * Dump configuration settings for roles after all roles have been dumped.
934 : * We do it this way because config settings for roles could mention the
935 : * names of other roles.
936 : */
937 48 : if (PQntuples(res) > 0)
938 48 : fprintf(OPF, "\n--\n-- User Configurations\n--\n");
939 :
940 176 : for (i = 0; i < PQntuples(res); i++)
941 128 : dumpUserConfig(conn, PQgetvalue(res, i, i_rolname));
942 :
943 48 : PQclear(res);
944 :
945 48 : fprintf(OPF, "\n\n");
946 :
947 48 : destroyPQExpBuffer(buf);
948 48 : }
949 :
950 :
951 : /*
952 : * Dump role memberships.
953 : *
954 : * Note: we expect dumpRoles already created all the roles, but there is
955 : * no membership yet.
956 : */
957 : static void
958 48 : dumpRoleMembership(PGconn *conn)
959 : {
960 48 : PQExpBuffer buf = createPQExpBuffer();
961 48 : PQExpBuffer optbuf = createPQExpBuffer();
962 : PGresult *res;
963 48 : int start = 0,
964 : end,
965 : total;
966 : bool dump_grantors;
967 : bool dump_grant_options;
968 : int i_inherit_option;
969 : int i_set_option;
970 :
971 : /*
972 : * Previous versions of PostgreSQL didn't used to track the grantor very
973 : * carefully in the backend, and the grantor could be any user even if
974 : * they didn't have ADMIN OPTION on the role, or a user that no longer
975 : * existed. To avoid dump and restore failures, don't dump the grantor
976 : * when talking to an old server version.
977 : */
978 48 : dump_grantors = (PQserverVersion(conn) >= 160000);
979 :
980 : /*
981 : * Previous versions of PostgreSQL also did not have grant-level options.
982 : */
983 48 : dump_grant_options = (server_version >= 160000);
984 :
985 : /* Generate and execute query. */
986 48 : printfPQExpBuffer(buf, "SELECT ur.rolname AS role, "
987 : "um.rolname AS member, "
988 : "ug.oid AS grantorid, "
989 : "ug.rolname AS grantor, "
990 : "a.admin_option");
991 48 : if (dump_grant_options)
992 48 : appendPQExpBufferStr(buf, ", a.inherit_option, a.set_option");
993 48 : appendPQExpBuffer(buf, " FROM pg_auth_members a "
994 : "LEFT JOIN %s ur on ur.oid = a.roleid "
995 : "LEFT JOIN %s um on um.oid = a.member "
996 : "LEFT JOIN %s ug on ug.oid = a.grantor "
997 : "WHERE NOT (ur.rolname ~ '^pg_' AND um.rolname ~ '^pg_')"
998 : "ORDER BY 1,2,4", role_catalog, role_catalog, role_catalog);
999 48 : res = executeQuery(conn, buf->data);
1000 48 : i_inherit_option = PQfnumber(res, "inherit_option");
1001 48 : i_set_option = PQfnumber(res, "set_option");
1002 :
1003 48 : if (PQntuples(res) > 0)
1004 0 : fprintf(OPF, "--\n-- Role memberships\n--\n\n");
1005 :
1006 : /*
1007 : * We can't dump these GRANT commands in arbitrary order, because a role
1008 : * that is named as a grantor must already have ADMIN OPTION on the role
1009 : * for which it is granting permissions, except for the bootstrap
1010 : * superuser, who can always be named as the grantor.
1011 : *
1012 : * We handle this by considering these grants role by role. For each role,
1013 : * we initially consider the only allowable grantor to be the bootstrap
1014 : * superuser. Every time we grant ADMIN OPTION on the role to some user,
1015 : * that user also becomes an allowable grantor. We make repeated passes
1016 : * over the grants for the role, each time dumping those whose grantors
1017 : * are allowable and which we haven't done yet. Eventually this should let
1018 : * us dump all the grants.
1019 : */
1020 48 : total = PQntuples(res);
1021 48 : while (start < total)
1022 : {
1023 0 : char *role = PQgetvalue(res, start, 0);
1024 : int i;
1025 : bool *done;
1026 : int remaining;
1027 0 : int prev_remaining = 0;
1028 : rolename_hash *ht;
1029 :
1030 : /* All memberships for a single role should be adjacent. */
1031 0 : for (end = start; end < total; ++end)
1032 : {
1033 : char *otherrole;
1034 :
1035 0 : otherrole = PQgetvalue(res, end, 0);
1036 0 : if (strcmp(role, otherrole) != 0)
1037 0 : break;
1038 : }
1039 :
1040 0 : role = PQgetvalue(res, start, 0);
1041 0 : remaining = end - start;
1042 0 : done = pg_malloc0(remaining * sizeof(bool));
1043 0 : ht = rolename_create(remaining, NULL);
1044 :
1045 : /*
1046 : * Make repeated passes over the grants for this role until all have
1047 : * been dumped.
1048 : */
1049 0 : while (remaining > 0)
1050 : {
1051 : /*
1052 : * We should make progress on every iteration, because a notional
1053 : * graph whose vertices are grants and whose edges point from
1054 : * grantors to members should be connected and acyclic. If we fail
1055 : * to make progress, either we or the server have messed up.
1056 : */
1057 0 : if (remaining == prev_remaining)
1058 : {
1059 0 : pg_log_error("could not find a legal dump ordering for memberships in role \"%s\"",
1060 : role);
1061 0 : PQfinish(conn);
1062 0 : exit_nicely(1);
1063 : }
1064 0 : prev_remaining = remaining;
1065 :
1066 : /* Make one pass over the grants for this role. */
1067 0 : for (i = start; i < end; ++i)
1068 : {
1069 : char *member;
1070 : char *admin_option;
1071 : char *grantorid;
1072 : char *grantor;
1073 0 : char *set_option = "true";
1074 : bool found;
1075 :
1076 : /* If we already did this grant, don't do it again. */
1077 0 : if (done[i - start])
1078 0 : continue;
1079 :
1080 0 : member = PQgetvalue(res, i, 1);
1081 0 : grantorid = PQgetvalue(res, i, 2);
1082 0 : grantor = PQgetvalue(res, i, 3);
1083 0 : admin_option = PQgetvalue(res, i, 4);
1084 0 : if (dump_grant_options)
1085 0 : set_option = PQgetvalue(res, i, i_set_option);
1086 :
1087 : /*
1088 : * If we're not dumping grantors or if the grantor is the
1089 : * bootstrap superuser, it's fine to dump this now. Otherwise,
1090 : * it's got to be someone who has already been granted ADMIN
1091 : * OPTION.
1092 : */
1093 0 : if (dump_grantors &&
1094 0 : atooid(grantorid) != BOOTSTRAP_SUPERUSERID &&
1095 0 : rolename_lookup(ht, grantor) == NULL)
1096 0 : continue;
1097 :
1098 : /* Remember that we did this so that we don't do it again. */
1099 0 : done[i - start] = true;
1100 0 : --remaining;
1101 :
1102 : /*
1103 : * If ADMIN OPTION is being granted, remember that grants
1104 : * listing this member as the grantor can now be dumped.
1105 : */
1106 0 : if (*admin_option == 't')
1107 0 : rolename_insert(ht, member, &found);
1108 :
1109 : /* Generate the actual GRANT statement. */
1110 0 : resetPQExpBuffer(optbuf);
1111 0 : fprintf(OPF, "GRANT %s", fmtId(role));
1112 0 : fprintf(OPF, " TO %s", fmtId(member));
1113 0 : if (*admin_option == 't')
1114 0 : appendPQExpBufferStr(optbuf, "ADMIN OPTION");
1115 0 : if (dump_grant_options)
1116 : {
1117 : char *inherit_option;
1118 :
1119 0 : if (optbuf->data[0] != '\0')
1120 0 : appendPQExpBufferStr(optbuf, ", ");
1121 0 : inherit_option = PQgetvalue(res, i, i_inherit_option);
1122 0 : appendPQExpBuffer(optbuf, "INHERIT %s",
1123 0 : *inherit_option == 't' ?
1124 : "TRUE" : "FALSE");
1125 : }
1126 0 : if (*set_option != 't')
1127 : {
1128 0 : if (optbuf->data[0] != '\0')
1129 0 : appendPQExpBufferStr(optbuf, ", ");
1130 0 : appendPQExpBuffer(optbuf, "SET FALSE");
1131 : }
1132 0 : if (optbuf->data[0] != '\0')
1133 0 : fprintf(OPF, " WITH %s", optbuf->data);
1134 0 : if (dump_grantors)
1135 0 : fprintf(OPF, " GRANTED BY %s", fmtId(grantor));
1136 0 : fprintf(OPF, ";\n");
1137 : }
1138 : }
1139 :
1140 0 : rolename_destroy(ht);
1141 0 : pg_free(done);
1142 0 : start = end;
1143 : }
1144 :
1145 48 : PQclear(res);
1146 48 : destroyPQExpBuffer(buf);
1147 :
1148 48 : fprintf(OPF, "\n\n");
1149 48 : }
1150 :
1151 :
1152 : /*
1153 : * Dump role configuration parameter privileges. This code is used for 15.0
1154 : * and later servers.
1155 : *
1156 : * Note: we expect dumpRoles already created all the roles, but there are
1157 : * no per-role configuration parameter privileges yet.
1158 : */
1159 : static void
1160 48 : dumpRoleGUCPrivs(PGconn *conn)
1161 : {
1162 : PGresult *res;
1163 : int i;
1164 :
1165 : /*
1166 : * Get all parameters that have non-default acls defined.
1167 : */
1168 48 : res = executeQuery(conn, "SELECT parname, "
1169 : "pg_catalog.pg_get_userbyid(" CppAsString2(BOOTSTRAP_SUPERUSERID) ") AS parowner, "
1170 : "paracl, "
1171 : "pg_catalog.acldefault('p', " CppAsString2(BOOTSTRAP_SUPERUSERID) ") AS acldefault "
1172 : "FROM pg_catalog.pg_parameter_acl "
1173 : "ORDER BY 1");
1174 :
1175 48 : if (PQntuples(res) > 0)
1176 2 : fprintf(OPF, "--\n-- Role privileges on configuration parameters\n--\n\n");
1177 :
1178 54 : for (i = 0; i < PQntuples(res); i++)
1179 : {
1180 6 : PQExpBuffer buf = createPQExpBuffer();
1181 6 : char *parname = PQgetvalue(res, i, 0);
1182 6 : char *parowner = PQgetvalue(res, i, 1);
1183 6 : char *paracl = PQgetvalue(res, i, 2);
1184 6 : char *acldefault = PQgetvalue(res, i, 3);
1185 : char *fparname;
1186 :
1187 : /* needed for buildACLCommands() */
1188 6 : fparname = pg_strdup(fmtId(parname));
1189 :
1190 6 : if (!buildACLCommands(fparname, NULL, NULL, "PARAMETER",
1191 : paracl, acldefault,
1192 : parowner, "", server_version, buf))
1193 : {
1194 0 : pg_log_error("could not parse ACL list (%s) for parameter \"%s\"",
1195 : paracl, parname);
1196 0 : PQfinish(conn);
1197 0 : exit_nicely(1);
1198 : }
1199 :
1200 6 : fprintf(OPF, "%s", buf->data);
1201 :
1202 6 : free(fparname);
1203 6 : destroyPQExpBuffer(buf);
1204 : }
1205 :
1206 48 : PQclear(res);
1207 48 : fprintf(OPF, "\n\n");
1208 48 : }
1209 :
1210 :
1211 : /*
1212 : * Drop tablespaces.
1213 : */
1214 : static void
1215 2 : dropTablespaces(PGconn *conn)
1216 : {
1217 : PGresult *res;
1218 : int i;
1219 :
1220 : /*
1221 : * Get all tablespaces except built-in ones (which we assume are named
1222 : * pg_xxx)
1223 : */
1224 2 : res = executeQuery(conn, "SELECT spcname "
1225 : "FROM pg_catalog.pg_tablespace "
1226 : "WHERE spcname !~ '^pg_' "
1227 : "ORDER BY 1");
1228 :
1229 2 : if (PQntuples(res) > 0)
1230 2 : fprintf(OPF, "--\n-- Drop tablespaces\n--\n\n");
1231 :
1232 4 : for (i = 0; i < PQntuples(res); i++)
1233 : {
1234 2 : char *spcname = PQgetvalue(res, i, 0);
1235 :
1236 4 : fprintf(OPF, "DROP TABLESPACE %s%s;\n",
1237 2 : if_exists ? "IF EXISTS " : "",
1238 : fmtId(spcname));
1239 : }
1240 :
1241 2 : PQclear(res);
1242 :
1243 2 : fprintf(OPF, "\n\n");
1244 2 : }
1245 :
1246 : /*
1247 : * Dump tablespaces.
1248 : */
1249 : static void
1250 38 : dumpTablespaces(PGconn *conn)
1251 : {
1252 : PGresult *res;
1253 : int i;
1254 :
1255 : /*
1256 : * Get all tablespaces except built-in ones (which we assume are named
1257 : * pg_xxx)
1258 : */
1259 38 : res = executeQuery(conn, "SELECT oid, spcname, "
1260 : "pg_catalog.pg_get_userbyid(spcowner) AS spcowner, "
1261 : "pg_catalog.pg_tablespace_location(oid), "
1262 : "spcacl, acldefault('t', spcowner) AS acldefault, "
1263 : "array_to_string(spcoptions, ', '),"
1264 : "pg_catalog.shobj_description(oid, 'pg_tablespace') "
1265 : "FROM pg_catalog.pg_tablespace "
1266 : "WHERE spcname !~ '^pg_' "
1267 : "ORDER BY 1");
1268 :
1269 38 : if (PQntuples(res) > 0)
1270 14 : fprintf(OPF, "--\n-- Tablespaces\n--\n\n");
1271 :
1272 52 : for (i = 0; i < PQntuples(res); i++)
1273 : {
1274 14 : PQExpBuffer buf = createPQExpBuffer();
1275 14 : Oid spcoid = atooid(PQgetvalue(res, i, 0));
1276 14 : char *spcname = PQgetvalue(res, i, 1);
1277 14 : char *spcowner = PQgetvalue(res, i, 2);
1278 14 : char *spclocation = PQgetvalue(res, i, 3);
1279 14 : char *spcacl = PQgetvalue(res, i, 4);
1280 14 : char *acldefault = PQgetvalue(res, i, 5);
1281 14 : char *spcoptions = PQgetvalue(res, i, 6);
1282 14 : char *spccomment = PQgetvalue(res, i, 7);
1283 : char *fspcname;
1284 :
1285 : /* needed for buildACLCommands() */
1286 14 : fspcname = pg_strdup(fmtId(spcname));
1287 :
1288 14 : if (binary_upgrade)
1289 : {
1290 0 : appendPQExpBufferStr(buf, "\n-- For binary upgrade, must preserve pg_tablespace oid\n");
1291 0 : appendPQExpBuffer(buf, "SELECT pg_catalog.binary_upgrade_set_next_pg_tablespace_oid('%u'::pg_catalog.oid);\n", spcoid);
1292 : }
1293 :
1294 14 : appendPQExpBuffer(buf, "CREATE TABLESPACE %s", fspcname);
1295 14 : appendPQExpBuffer(buf, " OWNER %s", fmtId(spcowner));
1296 :
1297 14 : appendPQExpBufferStr(buf, " LOCATION ");
1298 :
1299 : /*
1300 : * In-place tablespaces use a relative path, and need to be dumped
1301 : * with an empty string as location.
1302 : */
1303 14 : if (is_absolute_path(spclocation))
1304 4 : appendStringLiteralConn(buf, spclocation, conn);
1305 : else
1306 10 : appendStringLiteralConn(buf, "", conn);
1307 :
1308 14 : appendPQExpBufferStr(buf, ";\n");
1309 :
1310 14 : if (spcoptions && spcoptions[0] != '\0')
1311 0 : appendPQExpBuffer(buf, "ALTER TABLESPACE %s SET (%s);\n",
1312 : fspcname, spcoptions);
1313 :
1314 : /* tablespaces can't have initprivs */
1315 :
1316 14 : if (!skip_acls &&
1317 14 : !buildACLCommands(fspcname, NULL, NULL, "TABLESPACE",
1318 : spcacl, acldefault,
1319 : spcowner, "", server_version, buf))
1320 : {
1321 0 : pg_log_error("could not parse ACL list (%s) for tablespace \"%s\"",
1322 : spcacl, spcname);
1323 0 : PQfinish(conn);
1324 0 : exit_nicely(1);
1325 : }
1326 :
1327 14 : if (!no_comments && spccomment && spccomment[0] != '\0')
1328 : {
1329 0 : appendPQExpBuffer(buf, "COMMENT ON TABLESPACE %s IS ", fspcname);
1330 0 : appendStringLiteralConn(buf, spccomment, conn);
1331 0 : appendPQExpBufferStr(buf, ";\n");
1332 : }
1333 :
1334 14 : if (!no_security_labels)
1335 14 : buildShSecLabels(conn, "pg_tablespace", spcoid,
1336 : "TABLESPACE", spcname,
1337 : buf);
1338 :
1339 14 : fprintf(OPF, "%s", buf->data);
1340 :
1341 14 : free(fspcname);
1342 14 : destroyPQExpBuffer(buf);
1343 : }
1344 :
1345 38 : PQclear(res);
1346 38 : fprintf(OPF, "\n\n");
1347 38 : }
1348 :
1349 :
1350 : /*
1351 : * Dump commands to drop each database.
1352 : */
1353 : static void
1354 0 : dropDBs(PGconn *conn)
1355 : {
1356 : PGresult *res;
1357 : int i;
1358 :
1359 : /*
1360 : * Skip databases marked not datallowconn, since we'd be unable to connect
1361 : * to them anyway. This must agree with dumpDatabases().
1362 : */
1363 0 : res = executeQuery(conn,
1364 : "SELECT datname "
1365 : "FROM pg_database d "
1366 : "WHERE datallowconn AND datconnlimit != -2 "
1367 : "ORDER BY datname");
1368 :
1369 0 : if (PQntuples(res) > 0)
1370 0 : fprintf(OPF, "--\n-- Drop databases (except postgres and template1)\n--\n\n");
1371 :
1372 0 : for (i = 0; i < PQntuples(res); i++)
1373 : {
1374 0 : char *dbname = PQgetvalue(res, i, 0);
1375 :
1376 : /*
1377 : * Skip "postgres" and "template1"; dumpDatabases() will deal with
1378 : * them specially. Also, be sure to skip "template0", even if for
1379 : * some reason it's not marked !datallowconn.
1380 : */
1381 0 : if (strcmp(dbname, "template1") != 0 &&
1382 0 : strcmp(dbname, "template0") != 0 &&
1383 0 : strcmp(dbname, "postgres") != 0)
1384 : {
1385 0 : fprintf(OPF, "DROP DATABASE %s%s;\n",
1386 0 : if_exists ? "IF EXISTS " : "",
1387 : fmtId(dbname));
1388 : }
1389 : }
1390 :
1391 0 : PQclear(res);
1392 :
1393 0 : fprintf(OPF, "\n\n");
1394 0 : }
1395 :
1396 :
1397 : /*
1398 : * Dump user-specific configuration
1399 : */
1400 : static void
1401 128 : dumpUserConfig(PGconn *conn, const char *username)
1402 : {
1403 128 : PQExpBuffer buf = createPQExpBuffer();
1404 : PGresult *res;
1405 :
1406 128 : printfPQExpBuffer(buf, "SELECT unnest(setconfig) FROM pg_db_role_setting "
1407 : "WHERE setdatabase = 0 AND setrole = "
1408 : "(SELECT oid FROM %s WHERE rolname = ",
1409 : role_catalog);
1410 128 : appendStringLiteralConn(buf, username, conn);
1411 128 : appendPQExpBufferChar(buf, ')');
1412 :
1413 128 : res = executeQuery(conn, buf->data);
1414 :
1415 128 : if (PQntuples(res) > 0)
1416 0 : fprintf(OPF, "\n--\n-- User Config \"%s\"\n--\n\n", username);
1417 :
1418 128 : for (int i = 0; i < PQntuples(res); i++)
1419 : {
1420 0 : resetPQExpBuffer(buf);
1421 0 : makeAlterConfigCommand(conn, PQgetvalue(res, i, 0),
1422 : "ROLE", username, NULL, NULL,
1423 : buf);
1424 0 : fprintf(OPF, "%s", buf->data);
1425 : }
1426 :
1427 128 : PQclear(res);
1428 :
1429 128 : destroyPQExpBuffer(buf);
1430 128 : }
1431 :
1432 : /*
1433 : * Find a list of database names that match the given patterns.
1434 : * See also expand_table_name_patterns() in pg_dump.c
1435 : */
1436 : static void
1437 52 : expand_dbname_patterns(PGconn *conn,
1438 : SimpleStringList *patterns,
1439 : SimpleStringList *names)
1440 : {
1441 : PQExpBuffer query;
1442 : PGresult *res;
1443 :
1444 52 : if (patterns->head == NULL)
1445 42 : return; /* nothing to do */
1446 :
1447 10 : query = createPQExpBuffer();
1448 :
1449 : /*
1450 : * The loop below runs multiple SELECTs, which might sometimes result in
1451 : * duplicate entries in the name list, but we don't care, since all we're
1452 : * going to do is test membership of the list.
1453 : */
1454 :
1455 16 : for (SimpleStringListCell *cell = patterns->head; cell; cell = cell->next)
1456 : {
1457 : int dotcnt;
1458 :
1459 10 : appendPQExpBufferStr(query,
1460 : "SELECT datname FROM pg_catalog.pg_database n\n");
1461 10 : processSQLNamePattern(conn, query, cell->val, false,
1462 : false, NULL, "datname", NULL, NULL, NULL,
1463 : &dotcnt);
1464 :
1465 10 : if (dotcnt > 0)
1466 : {
1467 4 : pg_log_error("improper qualified name (too many dotted names): %s",
1468 : cell->val);
1469 4 : PQfinish(conn);
1470 4 : exit_nicely(1);
1471 : }
1472 :
1473 6 : res = executeQuery(conn, query->data);
1474 14 : for (int i = 0; i < PQntuples(res); i++)
1475 : {
1476 8 : simple_string_list_append(names, PQgetvalue(res, i, 0));
1477 : }
1478 :
1479 6 : PQclear(res);
1480 6 : resetPQExpBuffer(query);
1481 : }
1482 :
1483 6 : destroyPQExpBuffer(query);
1484 : }
1485 :
1486 : /*
1487 : * Dump contents of databases.
1488 : */
1489 : static void
1490 24 : dumpDatabases(PGconn *conn)
1491 : {
1492 : PGresult *res;
1493 : int i;
1494 :
1495 : /*
1496 : * Skip databases marked not datallowconn, since we'd be unable to connect
1497 : * to them anyway. This must agree with dropDBs().
1498 : *
1499 : * We arrange for template1 to be processed first, then we process other
1500 : * DBs in alphabetical order. If we just did them all alphabetically, we
1501 : * might find ourselves trying to drop the "postgres" database while still
1502 : * connected to it. This makes trying to run the restore script while
1503 : * connected to "template1" a bad idea, but there's no fixed order that
1504 : * doesn't have some failure mode with --clean.
1505 : */
1506 24 : res = executeQuery(conn,
1507 : "SELECT datname "
1508 : "FROM pg_database d "
1509 : "WHERE datallowconn AND datconnlimit != -2 "
1510 : "ORDER BY (datname <> 'template1'), datname");
1511 :
1512 24 : if (PQntuples(res) > 0)
1513 24 : fprintf(OPF, "--\n-- Databases\n--\n\n");
1514 :
1515 130 : for (i = 0; i < PQntuples(res); i++)
1516 : {
1517 108 : char *dbname = PQgetvalue(res, i, 0);
1518 : const char *create_opts;
1519 : int ret;
1520 :
1521 : /* Skip template0, even if it's not marked !datallowconn. */
1522 108 : if (strcmp(dbname, "template0") == 0)
1523 0 : continue;
1524 :
1525 : /* Skip any explicitly excluded database */
1526 108 : if (simple_string_list_member(&database_exclude_names, dbname))
1527 : {
1528 8 : pg_log_info("excluding database \"%s\"", dbname);
1529 8 : continue;
1530 : }
1531 :
1532 100 : pg_log_info("dumping database \"%s\"", dbname);
1533 :
1534 100 : fprintf(OPF, "--\n-- Database \"%s\" dump\n--\n\n", dbname);
1535 :
1536 : /*
1537 : * We assume that "template1" and "postgres" already exist in the
1538 : * target installation. dropDBs() won't have removed them, for fear
1539 : * of removing the DB the restore script is initially connected to. If
1540 : * --clean was specified, tell pg_dump to drop and recreate them;
1541 : * otherwise we'll merely restore their contents. Other databases
1542 : * should simply be created.
1543 : */
1544 100 : if (strcmp(dbname, "template1") == 0 || strcmp(dbname, "postgres") == 0)
1545 : {
1546 44 : if (output_clean)
1547 0 : create_opts = "--clean --create";
1548 : else
1549 : {
1550 44 : create_opts = "";
1551 : /* Since pg_dump won't emit a \connect command, we must */
1552 44 : fprintf(OPF, "\\connect %s\n\n", dbname);
1553 : }
1554 : }
1555 : else
1556 56 : create_opts = "--create";
1557 :
1558 100 : if (filename)
1559 88 : fclose(OPF);
1560 :
1561 100 : ret = runPgDump(dbname, create_opts);
1562 98 : if (ret != 0)
1563 0 : pg_fatal("pg_dump failed on database \"%s\", exiting", dbname);
1564 :
1565 98 : if (filename)
1566 : {
1567 86 : OPF = fopen(filename, PG_BINARY_A);
1568 86 : if (!OPF)
1569 0 : pg_fatal("could not re-open the output file \"%s\": %m",
1570 : filename);
1571 : }
1572 : }
1573 :
1574 22 : PQclear(res);
1575 22 : }
1576 :
1577 :
1578 :
1579 : /*
1580 : * Run pg_dump on dbname, with specified options.
1581 : */
1582 : static int
1583 100 : runPgDump(const char *dbname, const char *create_opts)
1584 : {
1585 : PQExpBufferData connstrbuf;
1586 : PQExpBufferData cmd;
1587 : int ret;
1588 :
1589 100 : initPQExpBuffer(&connstrbuf);
1590 100 : initPQExpBuffer(&cmd);
1591 :
1592 100 : printfPQExpBuffer(&cmd, "\"%s\" %s %s", pg_dump_bin,
1593 100 : pgdumpopts->data, create_opts);
1594 :
1595 : /*
1596 : * If we have a filename, use the undocumented plain-append pg_dump
1597 : * format.
1598 : */
1599 100 : if (filename)
1600 88 : appendPQExpBufferStr(&cmd, " -Fa ");
1601 : else
1602 12 : appendPQExpBufferStr(&cmd, " -Fp ");
1603 :
1604 : /*
1605 : * Append the database name to the already-constructed stem of connection
1606 : * string.
1607 : */
1608 100 : appendPQExpBuffer(&connstrbuf, "%s dbname=", connstr);
1609 100 : appendConnStrVal(&connstrbuf, dbname);
1610 :
1611 100 : appendShellString(&cmd, connstrbuf.data);
1612 :
1613 98 : pg_log_info("running \"%s\"", cmd.data);
1614 :
1615 98 : fflush(NULL);
1616 :
1617 98 : ret = system(cmd.data);
1618 :
1619 98 : termPQExpBuffer(&cmd);
1620 98 : termPQExpBuffer(&connstrbuf);
1621 :
1622 98 : return ret;
1623 : }
1624 :
1625 : /*
1626 : * buildShSecLabels
1627 : *
1628 : * Build SECURITY LABEL command(s) for a shared object
1629 : *
1630 : * The caller has to provide object type and identity in two separate formats:
1631 : * catalog_name (e.g., "pg_database") and object OID, as well as
1632 : * type name (e.g., "DATABASE") and object name (not pre-quoted).
1633 : *
1634 : * The command(s) are appended to "buffer".
1635 : */
1636 : static void
1637 142 : buildShSecLabels(PGconn *conn, const char *catalog_name, Oid objectId,
1638 : const char *objtype, const char *objname,
1639 : PQExpBuffer buffer)
1640 : {
1641 142 : PQExpBuffer sql = createPQExpBuffer();
1642 : PGresult *res;
1643 :
1644 142 : buildShSecLabelQuery(catalog_name, objectId, sql);
1645 142 : res = executeQuery(conn, sql->data);
1646 142 : emitShSecLabels(conn, res, buffer, objtype, objname);
1647 :
1648 142 : PQclear(res);
1649 142 : destroyPQExpBuffer(sql);
1650 142 : }
1651 :
1652 : /*
1653 : * Make a database connection with the given parameters. An
1654 : * interactive password prompt is automatically issued if required.
1655 : *
1656 : * If fail_on_error is false, we return NULL without printing any message
1657 : * on failure, but preserve any prompted password for the next try.
1658 : *
1659 : * On success, the global variable 'connstr' is set to a connection string
1660 : * containing the options used.
1661 : */
1662 : static PGconn *
1663 52 : connectDatabase(const char *dbname, const char *connection_string,
1664 : const char *pghost, const char *pgport, const char *pguser,
1665 : trivalue prompt_password, bool fail_on_error)
1666 : {
1667 : PGconn *conn;
1668 : bool new_pass;
1669 : const char *remoteversion_str;
1670 : int my_version;
1671 52 : const char **keywords = NULL;
1672 52 : const char **values = NULL;
1673 52 : PQconninfoOption *conn_opts = NULL;
1674 : static char *password = NULL;
1675 :
1676 52 : if (prompt_password == TRI_YES && !password)
1677 0 : password = simple_prompt("Password: ", false);
1678 :
1679 : /*
1680 : * Start the connection. Loop until we have a password if requested by
1681 : * backend.
1682 : */
1683 : do
1684 : {
1685 52 : int argcount = 6;
1686 : PQconninfoOption *conn_opt;
1687 52 : char *err_msg = NULL;
1688 52 : int i = 0;
1689 :
1690 52 : free(keywords);
1691 52 : free(values);
1692 52 : PQconninfoFree(conn_opts);
1693 :
1694 : /*
1695 : * Merge the connection info inputs given in form of connection string
1696 : * and other options. Explicitly discard any dbname value in the
1697 : * connection string; otherwise, PQconnectdbParams() would interpret
1698 : * that value as being itself a connection string.
1699 : */
1700 52 : if (connection_string)
1701 : {
1702 52 : conn_opts = PQconninfoParse(connection_string, &err_msg);
1703 52 : if (conn_opts == NULL)
1704 0 : pg_fatal("%s", err_msg);
1705 :
1706 2184 : for (conn_opt = conn_opts; conn_opt->keyword != NULL; conn_opt++)
1707 : {
1708 2132 : if (conn_opt->val != NULL && conn_opt->val[0] != '\0' &&
1709 48 : strcmp(conn_opt->keyword, "dbname") != 0)
1710 32 : argcount++;
1711 : }
1712 :
1713 52 : keywords = pg_malloc0((argcount + 1) * sizeof(*keywords));
1714 52 : values = pg_malloc0((argcount + 1) * sizeof(*values));
1715 :
1716 2184 : for (conn_opt = conn_opts; conn_opt->keyword != NULL; conn_opt++)
1717 : {
1718 2132 : if (conn_opt->val != NULL && conn_opt->val[0] != '\0' &&
1719 48 : strcmp(conn_opt->keyword, "dbname") != 0)
1720 : {
1721 32 : keywords[i] = conn_opt->keyword;
1722 32 : values[i] = conn_opt->val;
1723 32 : i++;
1724 : }
1725 : }
1726 : }
1727 : else
1728 : {
1729 0 : keywords = pg_malloc0((argcount + 1) * sizeof(*keywords));
1730 0 : values = pg_malloc0((argcount + 1) * sizeof(*values));
1731 : }
1732 :
1733 52 : if (pghost)
1734 : {
1735 8 : keywords[i] = "host";
1736 8 : values[i] = pghost;
1737 8 : i++;
1738 : }
1739 52 : if (pgport)
1740 : {
1741 16 : keywords[i] = "port";
1742 16 : values[i] = pgport;
1743 16 : i++;
1744 : }
1745 52 : if (pguser)
1746 : {
1747 22 : keywords[i] = "user";
1748 22 : values[i] = pguser;
1749 22 : i++;
1750 : }
1751 52 : if (password)
1752 : {
1753 0 : keywords[i] = "password";
1754 0 : values[i] = password;
1755 0 : i++;
1756 : }
1757 52 : if (dbname)
1758 : {
1759 52 : keywords[i] = "dbname";
1760 52 : values[i] = dbname;
1761 52 : i++;
1762 : }
1763 52 : keywords[i] = "fallback_application_name";
1764 52 : values[i] = progname;
1765 52 : i++;
1766 :
1767 52 : new_pass = false;
1768 52 : conn = PQconnectdbParams(keywords, values, true);
1769 :
1770 52 : if (!conn)
1771 0 : pg_fatal("could not connect to database \"%s\"", dbname);
1772 :
1773 52 : if (PQstatus(conn) == CONNECTION_BAD &&
1774 0 : PQconnectionNeedsPassword(conn) &&
1775 0 : !password &&
1776 : prompt_password != TRI_NO)
1777 : {
1778 0 : PQfinish(conn);
1779 0 : password = simple_prompt("Password: ", false);
1780 0 : new_pass = true;
1781 : }
1782 52 : } while (new_pass);
1783 :
1784 : /* check to see that the backend connection was successfully made */
1785 52 : if (PQstatus(conn) == CONNECTION_BAD)
1786 : {
1787 0 : if (fail_on_error)
1788 0 : pg_fatal("%s", PQerrorMessage(conn));
1789 : else
1790 : {
1791 0 : PQfinish(conn);
1792 :
1793 0 : free(keywords);
1794 0 : free(values);
1795 0 : PQconninfoFree(conn_opts);
1796 :
1797 0 : return NULL;
1798 : }
1799 : }
1800 :
1801 : /*
1802 : * Ok, connected successfully. Remember the options used, in the form of a
1803 : * connection string.
1804 : */
1805 52 : connstr = constructConnStr(keywords, values);
1806 :
1807 52 : free(keywords);
1808 52 : free(values);
1809 52 : PQconninfoFree(conn_opts);
1810 :
1811 : /* Check version */
1812 52 : remoteversion_str = PQparameterStatus(conn, "server_version");
1813 52 : if (!remoteversion_str)
1814 0 : pg_fatal("could not get server version");
1815 52 : server_version = PQserverVersion(conn);
1816 52 : if (server_version == 0)
1817 0 : pg_fatal("could not parse server version \"%s\"",
1818 : remoteversion_str);
1819 :
1820 52 : my_version = PG_VERSION_NUM;
1821 :
1822 : /*
1823 : * We allow the server to be back to 9.2, and up to any minor release of
1824 : * our own major version. (See also version check in pg_dump.c.)
1825 : */
1826 52 : if (my_version != server_version
1827 0 : && (server_version < 90200 ||
1828 0 : (server_version / 100) > (my_version / 100)))
1829 : {
1830 0 : pg_log_error("aborting because of server version mismatch");
1831 0 : pg_log_error_detail("server version: %s; %s version: %s",
1832 : remoteversion_str, progname, PG_VERSION);
1833 0 : exit_nicely(1);
1834 : }
1835 :
1836 52 : PQclear(executeQuery(conn, ALWAYS_SECURE_SEARCH_PATH_SQL));
1837 :
1838 52 : return conn;
1839 : }
1840 :
1841 : /* ----------
1842 : * Construct a connection string from the given keyword/value pairs. It is
1843 : * used to pass the connection options to the pg_dump subprocess.
1844 : *
1845 : * The following parameters are excluded:
1846 : * dbname - varies in each pg_dump invocation
1847 : * password - it's not secure to pass a password on the command line
1848 : * fallback_application_name - we'll let pg_dump set it
1849 : * ----------
1850 : */
1851 : static char *
1852 52 : constructConnStr(const char **keywords, const char **values)
1853 : {
1854 52 : PQExpBuffer buf = createPQExpBuffer();
1855 : char *connstr;
1856 : int i;
1857 52 : bool firstkeyword = true;
1858 :
1859 : /* Construct a new connection string in key='value' format. */
1860 234 : for (i = 0; keywords[i] != NULL; i++)
1861 : {
1862 182 : if (strcmp(keywords[i], "dbname") == 0 ||
1863 130 : strcmp(keywords[i], "password") == 0 ||
1864 130 : strcmp(keywords[i], "fallback_application_name") == 0)
1865 104 : continue;
1866 :
1867 78 : if (!firstkeyword)
1868 40 : appendPQExpBufferChar(buf, ' ');
1869 78 : firstkeyword = false;
1870 78 : appendPQExpBuffer(buf, "%s=", keywords[i]);
1871 78 : appendConnStrVal(buf, values[i]);
1872 : }
1873 :
1874 52 : connstr = pg_strdup(buf->data);
1875 52 : destroyPQExpBuffer(buf);
1876 52 : return connstr;
1877 : }
1878 :
1879 : /*
1880 : * Run a query, return the results, exit program on failure.
1881 : */
1882 : static PGresult *
1883 538 : executeQuery(PGconn *conn, const char *query)
1884 : {
1885 : PGresult *res;
1886 :
1887 538 : pg_log_info("executing %s", query);
1888 :
1889 538 : res = PQexec(conn, query);
1890 1076 : if (!res ||
1891 538 : PQresultStatus(res) != PGRES_TUPLES_OK)
1892 : {
1893 0 : pg_log_error("query failed: %s", PQerrorMessage(conn));
1894 0 : pg_log_error_detail("Query was: %s", query);
1895 0 : PQfinish(conn);
1896 0 : exit_nicely(1);
1897 : }
1898 :
1899 538 : return res;
1900 : }
1901 :
1902 : /*
1903 : * As above for a SQL command (which returns nothing).
1904 : */
1905 : static void
1906 8 : executeCommand(PGconn *conn, const char *query)
1907 : {
1908 : PGresult *res;
1909 :
1910 8 : pg_log_info("executing %s", query);
1911 :
1912 8 : res = PQexec(conn, query);
1913 16 : if (!res ||
1914 8 : PQresultStatus(res) != PGRES_COMMAND_OK)
1915 : {
1916 0 : pg_log_error("query failed: %s", PQerrorMessage(conn));
1917 0 : pg_log_error_detail("Query was: %s", query);
1918 0 : PQfinish(conn);
1919 0 : exit_nicely(1);
1920 : }
1921 :
1922 8 : PQclear(res);
1923 8 : }
1924 :
1925 :
1926 : /*
1927 : * dumpTimestamp
1928 : */
1929 : static void
1930 8 : dumpTimestamp(const char *msg)
1931 : {
1932 : char buf[64];
1933 8 : time_t now = time(NULL);
1934 :
1935 8 : if (strftime(buf, sizeof(buf), PGDUMP_STRFTIME_FMT, localtime(&now)) != 0)
1936 8 : fprintf(OPF, "-- %s %s\n\n", msg, buf);
1937 8 : }
1938 :
1939 : /*
1940 : * read_dumpall_filters - retrieve database identifier patterns from file
1941 : *
1942 : * Parse the specified filter file for include and exclude patterns, and add
1943 : * them to the relevant lists. If the filename is "-" then filters will be
1944 : * read from STDIN rather than a file.
1945 : *
1946 : * At the moment, the only allowed filter is for database exclusion.
1947 : */
1948 : static void
1949 10 : read_dumpall_filters(const char *filename, SimpleStringList *pattern)
1950 : {
1951 : FilterStateData fstate;
1952 : char *objname;
1953 : FilterCommandType comtype;
1954 : FilterObjectType objtype;
1955 :
1956 10 : filter_init(&fstate, filename, exit);
1957 :
1958 14 : while (filter_read_item(&fstate, &objname, &comtype, &objtype))
1959 : {
1960 6 : if (comtype == FILTER_COMMAND_TYPE_INCLUDE)
1961 : {
1962 0 : pg_log_filter_error(&fstate, _("%s filter for \"%s\" is not allowed"),
1963 : "include",
1964 : filter_object_type_name(objtype));
1965 0 : exit_nicely(1);
1966 : }
1967 :
1968 6 : switch (objtype)
1969 : {
1970 0 : case FILTER_OBJECT_TYPE_NONE:
1971 0 : break;
1972 2 : case FILTER_OBJECT_TYPE_FUNCTION:
1973 : case FILTER_OBJECT_TYPE_INDEX:
1974 : case FILTER_OBJECT_TYPE_TABLE_DATA:
1975 : case FILTER_OBJECT_TYPE_TABLE_DATA_AND_CHILDREN:
1976 : case FILTER_OBJECT_TYPE_TRIGGER:
1977 : case FILTER_OBJECT_TYPE_EXTENSION:
1978 : case FILTER_OBJECT_TYPE_FOREIGN_DATA:
1979 : case FILTER_OBJECT_TYPE_SCHEMA:
1980 : case FILTER_OBJECT_TYPE_TABLE:
1981 : case FILTER_OBJECT_TYPE_TABLE_AND_CHILDREN:
1982 2 : pg_log_filter_error(&fstate, _("unsupported filter object"));
1983 2 : exit_nicely(1);
1984 : break;
1985 :
1986 4 : case FILTER_OBJECT_TYPE_DATABASE:
1987 4 : simple_string_list_append(pattern, objname);
1988 4 : break;
1989 : }
1990 :
1991 4 : if (objname)
1992 4 : free(objname);
1993 : }
1994 :
1995 4 : filter_free(&fstate);
1996 4 : }
|
