summaryrefslogtreecommitdiff
path: root/scripts/mysql_setpermission.sh
blob: d8e52ab69638483dcd14dfa73660c5eb8a17b473 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
#!@PERL_PATH@
## Emacs, this is -*- perl -*- mode? :-)

# Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU Library General Public
# License as published by the Free Software Foundation; version 2
# of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# Library General Public License for more details.
#
# You should have received a copy of the GNU Library General Public
# License along with this library; if not, write to the Free
# Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
# MA 02110-1335  USA

##
##        Permission setter for MySQL
##
##        mady by Luuk de Boer (luuk@wxs.nl) 1998.
##        it's made under GPL ...:-))
##
##
############################################################################
## History
##
## 1.0 first start of the program
## 1.1 some changes from monty and after that
##     initial release in mysql 3.22.10 (nov 1998)
## 1.2 begin screen now in a loop + quit is using 0 instead of 9
##     after ideas of Paul DuBois.
## 1.2a Add Grant, References, Index and Alter privilege handling (Monty)
## 1.3 Applied patch provided by Martin Mokrejs <mmokrejs@natur.cuni.cz>
##     (General code cleanup, use the GRANT statement instead of updating
##     the privilege tables directly, added option to revoke privileges)
## 1.4 Remove option 6 which attempted to erroneously grant global privileges

#### TODO
#
# empty ... suggestions ... mail them to me ...


$version="1.4";

use DBI;
use Getopt::Long;
use strict;
use vars qw($dbh $sth $hostname $opt_user $opt_password $opt_help $opt_host
	    $opt_socket $opt_port $host $version);

my $sqlhost = "";
my $user = "";

$dbh=$host=$opt_user= $opt_password= $opt_help= $opt_host= $opt_socket= "";
$opt_port=0;

read_my_cnf();		# Read options from ~/.my.cnf

GetOptions("user=s","password=s","help","host=s","socket=s","port=i");

usage() if ($opt_help); # the help function

if ($opt_host eq '')
{
  $sqlhost = "localhost";
}
else
{
  $sqlhost = $opt_host;
}

# ask for a password if no password is set already
if ($opt_password eq '')
{
  system "stty -echo";
  print "Password for user $opt_user to connect to MySQL: ";
  $opt_password = <STDIN>;
  chomp($opt_password);
  system "stty echo";
  print "\n";
}


# make the connection to MySQL
$dbh= DBI->connect("DBI:mysql:mysql:host=$sqlhost:port=$opt_port:mysql_socket=$opt_socket",$opt_user,$opt_password, {PrintError => 0}) ||
  die("Can't make a connection to the mysql server.\n The error: $DBI::errstr");

# the start of the program
&q1();
exit(0); # the end...

#####
# below all subroutines of the program
#####

###
# the beginning of the program
###
sub q1 { # first question ...
  my ($answer,$end);
  while (! $end) {
    print "#"x70;
    print "\n";
    print "## Welcome to the permission setter $version for MySQL.\n";
    print "## made by Luuk de Boer\n";
    print "#"x70;
    print "\n";
    print "What would you like to do:\n";
    print "  1. Set password for an existing user.\n";
    print "  2. Create a database + user privilege for that database\n";
		print "     and host combination (user can only do SELECT)\n";
    print "  3. Create/append user privilege for an existing database\n";
		print "     and host combination (user can only do SELECT)\n";
    print "  4. Create/append broader user privileges for an existing\n";
		print "     database and host combination\n";
		print "     (user can do SELECT,INSERT,UPDATE,DELETE)\n";
    print "  5. Create/append quite extended user privileges for an\n";
		print "     existing database and host combination (user can do\n";
		print "     SELECT,INSERT,UPDATE,DELETE,CREATE,DROP,INDEX,\n";
		print "     LOCK TABLES,CREATE TEMPORARY TABLES)\n";
    print "  6. Create/append full privileges for an existing database\n";
		print "     and host combination (user has FULL privilege)\n";
    print "  7. Remove all privileges for for an existing database and\n";
		print "     host combination.\n";
    print "     (user will have all permission fields set to N)\n";
    print "  0. exit this program\n";
    print "\nMake your choice [1,2,3,4,5,6,7,0]: ";
    while (<STDIN>) {
      $answer = $_;
      chomp($answer);
      if ($answer =~ /^[1234567]$/) {
        if ($answer == 1) {
	   setpwd();
        } elsif ($answer =~ /^[234567]$/) {
	   addall($answer);
	} else {
          print "Sorry, something went wrong. With such option number you should not get here.\n\n";
          $end = 1;
        }
      } elsif ($answer == 0) {
        print "We hope we can help you next time \n\n";
	$end = 1;
      } else {
        print "Your answer was $answer\n";
        print "and that's wrong .... Try again\n";
      }
      last;
    }
  }
}

###
# set a password for a user
###
sub setpwd
{
  my ($user,$pass,$host) = "";
  print "\n\nSetting a (new) password for a user.\n";

  $user = user();
  $pass = newpass($user);
  $host = hosts($user);

  print "#"x70;
  print "\n\n";
  print "That was it ... here is an overview of what you gave to me:\n";
  print "The username 		: $user\n";
#  print "The password		: $pass\n";
  print "The host		: $host\n";
  print "#"x70;
  print "\n\n";
  print "Are you pretty sure you would like to implement this [yes/no]: ";
  my $no = <STDIN>;
  chomp($no);
  if ($no =~ /n/i)
  {
    print "Okay .. that was it then ... See ya\n\n";
    return(0);
  }
  else
  {
    print "Okay ... let's go then ...\n\n";
  }
  $user = $dbh->quote($user);
  $host = $dbh->quote($host);
  if ($pass eq '')
  {
    $pass = "''";
  }
  else
  {
    $pass = "PASSWORD(". $dbh->quote($pass) . ")";
  }
  my $sth = $dbh->prepare("update user set Password=$pass where User = $user and Host = $host") || die $dbh->errstr;
  $sth->execute || die $dbh->errstr;
  $sth->finish;
  print "The password is set for user $user.\n\n";

}

###
# all things which will be added are done here
###
sub addall {
  my ($todo) = @_;
  my ($answer,$good,$db,$user,$pass,$host,$priv);

  if ($todo == 2) {
    $db = newdatabase();
  } else {
    $db = database();
  }

  $user = newuser();
  $pass = newpass("$user");
  $host = newhosts();

  print "#"x70;
  print "\n\n";
  print "That was it ... here is an overview of what you gave to me:\n";
  print "The database name	: $db\n";
  print "The username 		: $user\n";
#  print "The password		: $pass\n";
  print "The host(s)		: $host\n";
  print "#"x70;
  print "\n\n";
  print "Are you pretty sure you would like to implement this [yes/no]: ";
  my $no = <STDIN>;
  chomp($no);
  if ($no =~ /n/i) {
    print "Okay .. that was it then ... See ya\n\n";
    return(0);
  } else {
    print "Okay ... let's go then ...\n\n";
  }

  if ($todo == 2) {
    # create the database
    if ($db) {
    my $sth = $dbh->do("CREATE DATABASE $db") || $dbh->errstr;
    } else {
      print STDERR "What do you want? You wanted to create new database and add new user, right?\n";
      die "But then specify databasename, please\n";
  }
  }

  if ( ( !$todo ) or not ( $todo =~ m/^[2-7]$/ ) ) {
    print STDERR "Sorry, select option $todo isn't known inside the program .. See ya\n";
    quit();
  }

  my @hosts = split(/,/,$host);
  if (!$user) {
     die "username not specified: $user\n";
  }
  if (!$db) {
     die "databasename is not specified nor *\n";
  }
  foreach $host (@hosts) {
    # user privileges: SELECT
    if (($todo == 2) || ($todo == 3)) {
      $sth = $dbh->do("GRANT SELECT ON $db.* TO \'$user\'@\'$host\' IDENTIFIED BY \'$pass\'") || die $dbh->errstr;
    } elsif ($todo == 4) {
      # user privileges: SELECT,INSERT,UPDATE,DELETE
      $sth = $dbh->do("GRANT SELECT,INSERT,UPDATE,DELETE ON $db.* TO \'$user\'@\'$host\' IDENTIFIED BY \'$pass\'") || die $dbh->errstr;
    } elsif ($todo == 5) {
      # user privileges: SELECT,INSERT,UPDATE,DELETE,CREATE,DROP,INDEX,LOCK TABLES,CREATE TEMPORARY TABLES
      $sth = $dbh->do("GRANT SELECT,INSERT,UPDATE,DELETE,CREATE,DROP,INDEX,LOCK TABLES,CREATE TEMPORARY TABLES ON $db.* TO \'$user\'@\'$host\' IDENTIFIED BY \'$pass\'") || die $dbh->errstr;
    } elsif ($todo == 6) {
       # all privileges
       $sth = $dbh->do("GRANT ALL ON $db.* TO \'$user\'\@\'$host\' IDENTIFIED BY \'$pass\'") || die $dbh->errstr;
    } elsif ($todo == 7) {
       # all privileges set to N
       $sth = $dbh->do("REVOKE ALL ON $db.* FROM \'$user\'\@\'$host\'") || die $dbh->errstr;
    }
    }
  $dbh->do("FLUSH PRIVILEGES") || print STDERR "Can't flush privileges\n";
  print "Everything is inserted and mysql privileges have been reloaded.\n\n";
}

###
# ask for a new database name
###
sub newdatabase {
  my ($answer,$good,$db);
  print "\n\nWhich database would you like to add: ";
  while (<STDIN>) {
    $answer = $_;
    $good = 0;
    chomp($answer);
    if ($answer) {
      my $sth = $dbh->prepare("SHOW DATABASES") || die $dbh->errstr;
      $sth->execute || die $dbh->errstr;
      while (my @r = $sth->fetchrow_array) {
        if ($r[0] eq $answer) {
          print "\n\nSorry, this database name is already in use; try something else: ";
          $good = 1;
        }
      }
    } else {
      print "You must type something ...\nTry again: ";
      next;
    }
    last if ($good == 0);
  }
  $db = $answer;
  print "The new database $db will be created\n";
  return($db);
}

###
# select a database
###
sub database {
  my ($answer,$good,$db);
  print "\n\nWhich database from existing databases would you like to select: \n";
  print "You can choose from: \n";
  my $sth = $dbh->prepare("show databases") || die $dbh->errstr;
  $sth->execute || die $dbh->errstr;
  while (my @r = $sth->fetchrow_array) {
    print "  - $r[0] \n";
  }
  print "Which database will it be (case sensitive). Type * for any: \n";
  while (<STDIN>) {
    $answer = $_;
    $good = 0;
    chomp($answer);
    if ($answer) {
      if ($answer eq "*") {
        print "OK, the user entry will NOT be limited to any database";
        return("*");
      }
      my $sth = $dbh->prepare("show databases") || die $dbh->errstr;
      $sth->execute || die $dbh->errstr;
      while (my @r = $sth->fetchrow_array) {
        if ($r[0] eq $answer) {
          $good = 1;
          $db = $r[0];
          last;
        }
      }
    } else {
        print "Type either database name or * meaning any databasename. That means";
        print " any of those above but also any which will be created in future!";
        print " This option gives a user chance to operate on databse mysql, which";
        print " contains privilege settings. That is really risky!\n";
      next;
    }
    if ($good == 1) {
      last;
    } else {
      print "You must select one from the list.\nTry again: ";
      next;
    }
  }
  print "The database $db will be used.\n";
  return($db);
}

###
# ask for a new username
###
sub newuser
{
  my $user = "";
  my $answer = "";

  print "\nWhat username is to be created: ";
  while(<STDIN>)
  {
    $answer = $_;
    chomp($answer);
    if ($answer)
    {
      $user = $answer;
    }
    else
    {
      print "You must type something ...\nTry again: ";
      next;
    }
    last;
  }
  print "Username = $user\n";
  return($user);
}

###
# ask for a user which is already in the user table
###
sub user
{
  my ($answer,$user);

  print "\nFor which user do you want to specify a password: ";
  while(<STDIN>)
  {
    $answer = $_;
    chomp($answer);
    if ($answer)
    {
      my $sth = $dbh->prepare("select User from user where User = '$answer'") || die $dbh->errstr;
      $sth->execute || die $dbh->errstr;
      my @r = $sth->fetchrow_array;
      if ($r[0])
      {
        $user = $r[0];
      }
      else
      {
       print "Sorry, user $answer isn't known in the user table.\nTry again: ";
       next;
     }
    }
    else
    {
      print "You must type something ...\nTry again: ";
      next;
    }
    last;
  }
  print "Username = $user\n";
  return($user);
}

###
# ask for a new password
###
sub newpass
{
  my ($user) = @_;
  my ($pass,$answer,$good,$yes);

  print "Would you like to set a password for $user [y/n]: ";
  $yes = <STDIN>;
  chomp($yes);
  if ($yes =~ /y/)
  {
    system "stty -echo";
    print "What password do you want to specify for $user: ";
    while(<STDIN>)
    {
      $answer = $_;
      chomp($answer);
      system "stty echo";
      print "\n";
      if ($answer)
      {
        system "stty -echo";
        print "Type the password again: ";
        my $second = <STDIN>;
        chomp($second);
        system "stty echo";
        print "\n";
        if ($answer ne $second)
        {
          print "Passwords aren't the same; we begin from scratch again.\n";
          system "stty -echo";
          print "Password please: ";
          next;
        }
        else
        {
          $pass = $answer;
        }
      }
      else
      {
        print "You must type something ...\nTry again: ";
        next;
      }
      last;
    }
#    print "The password for $user is $pass.\n";
  }
  else
  {
    print "We won't set a password so the user doesn't have to use it\n";
    $pass = "";
  }
  return($pass);
}

###
# ask for new hosts
###
sub newhosts
{
  my ($host,$answer,$good);

  print "We now need to know from what host(s) the user will connect.\n";
  print "Keep in mind that % means 'from any host' ...\n";
  print "The host please: ";
  while(<STDIN>)
  {
    $answer = $_;
    chomp($answer);
    if ($answer)
    {
      $host .= ",$answer";
      print "Would you like to add another host [yes/no]: ";
      my $yes = <STDIN>;
      chomp($yes);
      if ($yes =~ /y/i)
      {
        print "Okay, give us the host please: ";
        next;
      }
      else
      {
        print "Okay we keep it with this ...\n";
      }
    }
    else
    {
      print "You must type something ...\nTry again: ";
      next;
    }
    last;
  }
  $host =~ s/^,//;
  print "The following host(s) will be used: $host.\n";
  return($host);
}

###
# ask for a host which is already in the user table
###
sub hosts
{
  my ($user) = @_;
  my ($answer,$good,$host);

  print "We now need to know which host for $user we have to change.\n";
  print "Choose from the following hosts: \n";
  $user = $dbh->quote($user);
  my $sth = $dbh->prepare("select Host,User from user where User = $user") || die $dbh->errstr;
  $sth->execute || die $dbh->errstr;
  while (my @r = $sth->fetchrow_array)
  {
    print "  - $r[0] \n";
  }
  print "The host please (case sensitive): ";
  while(<STDIN>)
  {
    $answer = $_;
    chomp($answer);
    if ($answer)
    {
      $sth = $dbh->prepare("select Host,User from user where Host = '$answer' and User = $user") || die $dbh->errstr;
      $sth->execute || die $dbh->errstr;
      my @r = $sth->fetchrow_array;
      if ($r[0])
      {
        $host = $answer;
        last;
      }
      else
      {
        print "You have to select a host from the list ...\nTry again: ";
        next;
      }
    }
    else
    {
      print "You have to type something ...\nTry again: ";
      next;
    }
    last;
  }
  print "The following host will be used: $host.\n";
  return($host);
}

###
# a nice quit (first disconnect and then exit
###
sub quit
{
  $dbh->disconnect;
  exit(0);
}

###
# Read variables password, port and socket from .my.cnf under the client
# or perl groups
###

sub read_my_cnf
{
  open(TMP,$ENV{'HOME'} . "/.my.cnf") || return 1;
  while (<TMP>)
  {
    if (/^\[(client|perl)\]/i)
    {
      while ((defined($_=<TMP>)) && !/^\[\w+\]/)
      {
	print $_;
	if (/^host\s*=\s*(\S+)/i)
	{
	  $opt_host = $1;
	}
	elsif (/^user\s*=\s*(\S+)/i)
	{
	  $opt_user = $1;
	}
	elsif (/^password\s*=\s*(\S+)/i)
	{
	  $opt_password = $1;
	}
	elsif (/^port\s*=\s*(\S+)/i)
	{
	  $opt_port = $1;
	}
	elsif (/^socket\s*=\s*(\S+)/i)
	{
	  $opt_socket = $1;
	}
      }
    }
  }
  close(TMP);
}

###
# the help text
###
sub usage
{
  print <<EOL;
----------------------------------------------------------------------
                 The permission setter for MySQL.
                      version: $version

                 made by: Luuk de Boer <luuk\@wxs.nl>
----------------------------------------------------------------------

The permission setter is a little program which can help you add users
or databases or change passwords in MySQL. Keep in mind that we don't
check permissions which already been set in MySQL. So if you can't
connect to MySQL using the permission you just added, take a look at
the permissions which have already been set in MySQL.

The permission setter first reads your .my.cnf file in your Home
directory if it exists.

Options for the permission setter:

--help		: print this help message and exit.

The options shown below are used for making the connection to the MySQL
server. Keep in mind that the permissions for the user specified via
these options must be sufficient to add users / create databases / set
passwords.

--user		: is the username to connect with.
--password	: the password of the username.
--host		: the host to connect to.
--socket	: the socket to connect to.
--port		: the port number of the host to connect to.

If you don't give a password and no password is set in your .my.cnf
file, then the permission setter will ask for a password.


EOL
exit(0);
}