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createdb: Fix quoting of --encoding, --lc-ctype and --lc-collate

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The original coding failed to properly quote those arguments, leading to
failures when using quotes in the values used.  As the quoting can be
encoding-sensitive, the connection to the backend needs to be taken
before applying the correct quoting.

Author: Michael Paquier
Reviewed-by: Daniel Gustafsson
Discussion: https://postgr.es/m/20200214041004.GB1998@paquier.xyz
Backpatch-through: 9.5
This commit is contained in:
Michael Paquier 2020-02-27 11:20:46 +09:00
parent 2c0797da2c
commit 008cf04096
2 changed files with 44 additions and 11 deletions
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29
src/bin/scripts/createdb.c
View File

@ -176,6 +176,13 @@ main(int argc, char *argv[])
dbname = get_user_name_or_exit(progname);
}
/* No point in trying to use postgres db when creating postgres db. */
if (maintenance_db == NULL && strcmp(dbname, "postgres") == 0)
maintenance_db = "template1";
conn = connectMaintenanceDatabase(maintenance_db, host, port, username,
prompt_password, progname, echo);
initPQExpBuffer(&sql);
appendPQExpBuffer(&sql, "CREATE DATABASE %s",
@ -186,23 +193,25 @@ main(int argc, char *argv[])
if (tablespace)
appendPQExpBuffer(&sql, " TABLESPACE %s", fmtId(tablespace));
if (encoding)
appendPQExpBuffer(&sql, " ENCODING '%s'", encoding);
{
appendPQExpBufferStr(&sql, " ENCODING ");
appendStringLiteralConn(&sql, encoding, conn);
}
if (template)
appendPQExpBuffer(&sql, " TEMPLATE %s", fmtId(template));
if (lc_collate)
appendPQExpBuffer(&sql, " LC_COLLATE '%s'", lc_collate);
{
appendPQExpBufferStr(&sql, " LC_COLLATE ");
appendStringLiteralConn(&sql, lc_collate, conn);
}
if (lc_ctype)
appendPQExpBuffer(&sql, " LC_CTYPE '%s'", lc_ctype);
{
appendPQExpBufferStr(&sql, " LC_CTYPE ");
appendStringLiteralConn(&sql, lc_ctype, conn);
}
appendPQExpBufferChar(&sql, ';');
/* No point in trying to use postgres db when creating postgres db. */
if (maintenance_db == NULL && strcmp(dbname, "postgres") == 0)
maintenance_db = "template1";
conn = connectMaintenanceDatabase(maintenance_db, host, port, username,
prompt_password, progname, echo);
if (echo)
printf("%s\n", sql.data);
result = PQexec(conn, sql.data);

26
src/bin/scripts/t/020_createdb.pl
View File

@ -3,7 +3,7 @@ use warnings;
use PostgresNode;
use TestLib;
use Test::More tests => 13;
use Test::More tests => 22;
program_help_ok('createdb');
program_version_ok('createdb');
@ -24,3 +24,27 @@ $node->issues_sql_like(
$node->command_fails([ 'createdb', 'foobar1' ],
'fails if database already exists');
# Check quote handling with incorrect option values.
$node->command_checks_all(
[ 'createdb', '--encoding', "foo'; SELECT '1", 'foobar2' ],
1,
[qr/^$/],
[qr/^createdb: error: "foo'; SELECT '1" is not a valid encoding name/s],
'createdb with incorrect --lc-collate');
$node->command_checks_all(
[ 'createdb', '--lc-collate', "foo'; SELECT '1", 'foobar2' ],
1,
[qr/^$/],
[
qr/^createdb: error: database creation failed: ERROR: invalid locale name/s
],
'createdb with incorrect --lc-collate');
$node->command_checks_all(
[ 'createdb', '--lc-ctype', "foo'; SELECT '1", 'foobar2' ],
1,
[qr/^$/],
[
qr/^createdb: error: database creation failed: ERROR: invalid locale name/s
],
'createdb with incorrect --lc-ctype');