├── .gitignore ├── README.md ├── tinc_rollout.py └── COPYING /.gitignore: -------------------------------------------------------------------------------- 1 | *.tar 2 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | 2 | tinc_rollout.py 3 | ============ 4 | 5 | This script sets up or updates a host to connect to a tinc vpn. It 6 | allows you to start a network from scratch, join an existing network, 7 | decide which peers you will connect with, and can package up your tinc 8 | configuration so others can join the network too. 9 | 10 | This is aimed at users who just want to make a bunch of boxes talk to 11 | each other. It won't setup bridging between two segments or anything 12 | like that. 13 | 14 | You should run this script as root (or any other user who is allowed 15 | to write to /etc/tinc). This script creates files in the current 16 | directory, so you should run it from /etc/tinc (or use the --root 17 | parameter to specify that directory). 18 | 19 | Creating A New Network 20 | ---------------------- 21 | 22 | If you want to make a network from scratch (as opposed to joining an 23 | existing network), use the "add" command: 24 | 25 | tinc_rollout.py --add -n network_name --hostname your_hostname --ip xxx.xxx.xxx.xxx 26 | 27 | The IP address is how your box will be known on the vpn. It should 28 | probably begin with 10. or 198.162 or 17.16. Your hostname is the 29 | name you would like to be called on your network. If you already have 30 | a hostname in /etc/hostname, you might want to just use that. 31 | 32 | Joining An Existing Network 33 | --------------------------- 34 | 35 | tinc_rollout.py --add -n network_name --ip xxx.xxx.xxx.xxx --tar path/to/tinc_rollout.tar 36 | 37 | The tinc_rollout.tar file should be provided by somebody else in the 38 | vpn. It contains some basic configuration and the host keys for peer 39 | nodes. This will create the network if needed and copy host files to 40 | it so you can accept connections with that network. 41 | 42 | Any time two machines want to talk to each other, they will need to 43 | have each other's keys. 44 | 45 | Adding Nodes To Your Network 46 | ---------------------------- 47 | 48 | If in the future new machines join your vpn, simply drop their 49 | host file in /etc/tinc/network_name/hosts or do another "tinc_rollout.py 50 | --add" right on top of your existing config. 51 | 52 | Inviting Others Into the Network 53 | -------------------------------- 54 | 55 | After you do the add, you might want to use the "package" command 56 | to add your host key to the tinc_rollout.tar file. Then you can give 57 | that file to other folks to configure their own tinc nodes. 58 | 59 | 60 | Bugs and Todos 61 | -------------- 62 | 63 | I wrote and tested this on Debian Wheezy. Patches welcome for other 64 | systems, but fixes, or new capabilities! Grep the code for 'TODO' to 65 | get a list of future work. 66 | 67 | TODO: support ipv6 68 | TODO: auto update the package 69 | TODO: auto download the package 70 | TODO: send package back to maintainer 71 | TODO: hosts-available/hosts-enabled 72 | 73 | Import Tinc Rollout 74 | ------------------- 75 | 76 | If you want to use these routines in your python script, you probably 77 | want to do something like this: 78 | 79 | from tinc_rollout import TincRollout 80 | 81 | TR=TincRollout({'root':'/etc/tinc', 82 | 'vpn_name':'freedombox'}) 83 | print TR.get_host_name() 84 | print TR.get_host_file() 85 | 86 | 87 | 88 | License and Copyright 89 | --------------------- 90 | 91 | This software is Copyright (c) 2012-2013 James Vasile. It is 92 | published under the terms of the GNU General Public License, version 3 93 | or later. A copy of the latest version of that license should be 94 | available at http://www.gnu.org/licenses/gpl.html See COPYING for 95 | details. 96 | 97 | This program is distributed in the hope that it will be useful, but 98 | WITHOUT ANY WARRANTY; without even the implied warranty of 99 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 100 | General Public License for more details. 101 | 102 | Thanks 103 | ------ 104 | 105 | Big thanks to Eben Moglen. I can't count the number of times he told 106 | me to look at tinc over the last few years and especially in the 107 | FreedomBox context. I just wish I'd gotten to it sooner. 108 | -------------------------------------------------------------------------------- /tinc_rollout.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python 2 | 3 | """ 4 | tinc_rollout.py 5 | ============ 6 | 7 | This script sets up or updates a host to connect to a tinc vpn. It 8 | allows you to start a network from scratch, join an existing network, 9 | decide which peers you will connect with, and can package up your tinc 10 | configuration so others can join the network too. 11 | 12 | This is aimed at users who just want to make a bunch of boxes talk to 13 | each other. It won't setup bridging between two segments or anything 14 | like that. 15 | 16 | You should run this script as root (or any other user who is allowed 17 | to write to /etc/tinc). This script creates files in the current 18 | directory, so you should run it from /etc/tinc (or use the --root 19 | parameter to specify that directory). 20 | 21 | Creating A New Network 22 | ---------------------- 23 | 24 | If you want to make a network from scratch (as opposed to joining an 25 | existing network), use the "add" command: 26 | 27 | tinc_rollout.py --add -n network_name --hostname your_hostname --ip xxx.xxx.xxx.xxx 28 | 29 | The IP address is how your box will be known on the vpn. It should 30 | probably begin with 10. or 198.162 or 17.16. Your hostname is the 31 | name you would like to be called on your network. If you already have 32 | a hostname in /etc/hostname, you might want to just use that. 33 | 34 | Joining An Existing Network 35 | --------------------------- 36 | 37 | tinc_rollout.py --add -n network_name --ip xxx.xxx.xxx.xxx --tar path/to/tinc_rollout.tar 38 | 39 | The tinc_rollout.tar file should be provided by somebody else in the 40 | vpn. It contains some basic configuration and the host keys for peer 41 | nodes. This will create the network if needed and copy host files to 42 | it so you can accept connections with that network. 43 | 44 | Any time two machines want to talk to each other, they will need to 45 | have each other's keys. 46 | 47 | Adding Nodes To Your Network 48 | ---------------------------- 49 | 50 | If in the future new machines join your vpn, simply drop their 51 | host file in /etc/tinc/network_name/hosts or do another "tinc_rollout.py 52 | --add" right on top of your existing config. 53 | 54 | Inviting Others Into the Network 55 | -------------------------------- 56 | 57 | After you do the add, you might want to use the "package" command 58 | to add your host key to the tinc_rollout.tar file. Then you can give 59 | that file to other folks to configure their own tinc nodes. 60 | 61 | 62 | Bugs and Todos 63 | -------------- 64 | 65 | I wrote and tested this on Debian Wheezy. Patches welcome for other 66 | systems, but fixes, or new capabilities! Grep the code for 'TODO' to 67 | get a list of future work. 68 | 69 | TODO: support ipv6 70 | TODO: auto update the package 71 | TODO: auto download the package 72 | TODO: send package back to maintainer 73 | TODO: hosts-available/hosts-enabled 74 | 75 | Import Tinc Rollout 76 | ------------------- 77 | 78 | If you want to use these routines in your python script, you probably 79 | want to do something like this: 80 | 81 | from tinc_rollout import TincRollout 82 | 83 | TR=TincRollout({'root':'/etc/tinc', 84 | 'vpn_name':'freedombox'}) 85 | print TR.get_host_name() 86 | print TR.get_host_file() 87 | 88 | 89 | 90 | License and Copyright 91 | --------------------- 92 | 93 | This software is Copyright (c) 2012-2013 James Vasile. It is 94 | published under the terms of the GNU General Public License, version 3 95 | or later. A copy of the latest version of that license should be 96 | available at http://www.gnu.org/licenses/gpl.html See COPYING for 97 | details. 98 | 99 | This program is distributed in the hope that it will be useful, but 100 | WITHOUT ANY WARRANTY; without even the implied warranty of 101 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 102 | General Public License for more details. 103 | 104 | Thanks 105 | ------ 106 | 107 | Big thanks to Eben Moglen. I can't count the number of times he told 108 | me to look at tinc over the last few years and especially in the 109 | FreedomBox context. I just wish I'd gotten to it sooner. 110 | """ 111 | 112 | import sys, os, subprocess, argparse, tarfile, stat, logging, re 113 | 114 | ## This is just defaults that is used by argparse 115 | tar_file = os.path.basename(sys.argv[0])+".tar" 116 | 117 | def slurp_if_exists(fname): 118 | if os.path.exists(fname): 119 | with open(fname, 'r') as INF: 120 | return INF.read() 121 | 122 | 123 | class chdir: 124 | def __enter__(self): 125 | self.curdir = os.getcwd() 126 | os.chdir(self.direc) 127 | return None 128 | def __init__(self, direc): 129 | self.direc = direc 130 | def __exit__(self, type, value, traceback): 131 | os.chdir(self.curdir) 132 | 133 | class NoHostnameError(Exception): 134 | pass 135 | class NoVPNNameError(Exception): 136 | pass 137 | 138 | class SingleLevelFilter(logging.Filter): 139 | """Licensed under the MIT License (http://opensource.org/licenses/mit-license.php) 140 | From https://code.google.com/p/sqlalchemy-migrate/source/browse/migrate/versioning/shell.py?r=38dca475c55333aab047d65503a15c470170336d""" 141 | def __init__(self, min=None, max=None): 142 | self.min = min or 0 143 | self.max = max or 100 144 | 145 | def filter(self, record): 146 | return self.min <= record.levelno <= self.max 147 | 148 | def config_logger(): 149 | global log 150 | h1 = logging.StreamHandler(sys.stdout) 151 | f1 = SingleLevelFilter(max=logging.INFO) 152 | h1.addFilter(f1) 153 | rootLogger = logging.getLogger() 154 | rootLogger.addHandler(h1) 155 | h2 = logging.StreamHandler(sys.stderr) 156 | f2 = SingleLevelFilter(min=logging.WARN) 157 | h2.addFilter(f2) 158 | rootLogger.addHandler(h2) 159 | log = logging.getLogger("my.logger") 160 | log.setLevel(logging.INFO) 161 | 162 | def parse_params(argv=None): 163 | if not argv: 164 | argv = sys.argv 165 | 166 | parser = argparse.ArgumentParser(description='Add/remove machines from your tinc vpn network.') 167 | act = parser.add_mutually_exclusive_group() 168 | act.add_argument('--add', dest='action', help='Start a new tinc vpn or install machines into an existing tinc vpn', action='store_const', const='add') 169 | #act.add_argument('--remove', dest='action', help='remove machines from the tinc vpn', action='store_const', const='remove') #TODO: implement remove 170 | act.add_argument('--package', dest='action', help='tar up the vpn configuration for export', action='store_const', const='package') 171 | 172 | # options for all actions 173 | parser.add_argument('-n', '--name', dest="vpn_name", default=None, action='store', 174 | help='the name of the vpn (maps to tincd -n)') 175 | parser.add_argument('--root', default='.', help="Where your tinc config dir is. Defaults to current dir") 176 | 177 | # options for add actions 178 | parser.add_argument('--hostname', help='Hostname of this machine on the vpn (defaults to /etc/hostname)') 179 | parser.add_argument('--ip', help="internal (vpn) IP address of this node") 180 | parser.add_argument('--peer', action='append', default=[], 181 | help='peer node to add or remove. May be specified more than once. Default is all known possible peers.') 182 | parser.add_argument('--tar', default=tar_file, 183 | help="path to tar file containing tinc.conf and host keys. If blank, we'll look for %s." % tar_file) 184 | 185 | parser.add_argument('-v', '--verbose', dest='verbose', action='store_true') 186 | 187 | args = parser.parse_args() 188 | 189 | if args.verbose: 190 | log.setLevel(logging.DEBUG) 191 | 192 | if not args.vpn_name: 193 | sys.stderr.write("Must provide the name of a vpn to operate on.\n") 194 | sys.exit() 195 | raise NoVPNNameError 196 | 197 | if not args.action: 198 | parser.print_usage() 199 | 200 | if not args.hostname: 201 | args.hostname = slurp_if_exists("/etc/hostname").strip() 202 | if not args.hostname: 203 | sys.stderr.write("Cannot figure out your hostname. Please provide one.\n") 204 | sys.exit() 205 | raise NoHostnameError 206 | 207 | if args.action == 'add': 208 | if not args.ip: 209 | sys.stderr.write("Must provide ip address of this machine on the vpn (e.g. 172.16.xx.xx).\n") 210 | sys.exit() 211 | 212 | return args 213 | 214 | class TincRollout(): 215 | def __init__(o, opt=None): 216 | if isinstance(opt, dict): 217 | o.__dict__.update(opt) 218 | elif opt: 219 | o.__dict__.update(vars(opt)) 220 | #log.debug("o.root = %s" % o.root) 221 | o.vpn_dir = os.path.abspath(os.path.join(o.root, o.vpn_name)) 222 | #log.debug("o.vpn_dir = %s" % o.vpn_dir) 223 | o.hosts_dir = os.path.join(o.vpn_dir, 'hosts') 224 | 225 | def gen_keys(o): 226 | ## Gen keys if needed 227 | machine_file = os.path.join(o.vpn_dir, "hosts", o.hostname) 228 | key_file = os.path.join(o.vpn_dir, "rsa_key.priv") 229 | gen_keys = True 230 | if os.path.exists(key_file) and os.path.exists(machine_file): 231 | found_subnet=False 232 | found_key = False 233 | with open(machine_file, 'r') as INF: 234 | for line in INF.readlines(): 235 | if line.startswith("Subnet"): 236 | found_subnet = True 237 | if line.strip() == "-----BEGIN RSA PUBLIC KEY-----": 238 | found_key = True 239 | if found_subnet and found_key: 240 | #log.info("%s already exists. No need to generate keys." % machine_file) 241 | gen_keys = False 242 | if gen_keys: # ugly ugly ugly 243 | if os.path.exists(key_file): 244 | os.unlink(key_file) 245 | with open(machine_file, 'w') as OUTF: 246 | OUTF.write("Subnet = %s/32\n" % o.ip) 247 | ret = subprocess.call('tincd -n "%s" --generate-keys' % o.vpn_name, shell=True) 248 | if ret == 127: 249 | log.error(str(ret)+"tincd not found. Please make sure that the tinc package is installed and that you are running this command as root.") 250 | sys.exit() 251 | 252 | def add_nets_boot(o): 253 | """Add vpn to nets.boot""" 254 | nets_file = os.path.join(o.root, "nets.boot") 255 | if not os.path.exists(nets_file): 256 | with open(nets_file, 'a') as OUTF: 257 | OUTF.write(o.vpn_name + "\n") 258 | else: 259 | with open(nets_file, 'r') as INF: 260 | lines = INF.readlines() 261 | found = False 262 | for line in lines: 263 | if line.strip() == o.vpn_name: 264 | found = True 265 | if not found: 266 | with open(nets_file, 'a') as OUTF: 267 | OUTF.write(o.vpn_name + "\n") 268 | 269 | def get_host_name(o): 270 | """Returns name of this machine in the tinc network, as 271 | specified in the tinc.conf file.""" 272 | for line in slurp_if_exists(os.path.join(o.vpn_dir,"tinc.conf")).split("\n"): 273 | if not '=' in line: 274 | continue 275 | (key, val) = line.split("=") 276 | if key.strip() == "Name": 277 | return val.strip() 278 | 279 | def get_host_file(o): 280 | """Returns contents of host file for this machine. Assumes 281 | network name is freedombox and it's all in o.vpn_dir""" 282 | 283 | return slurp_if_exists(os.path.join(o.vpn_dir, "hosts", o.get_host_name())) 284 | 285 | def add_peer(o, peer_name, contents): 286 | """Adds contents as a hosts file with the given peer_name to 287 | the tinc vpn named vpn_name.""" 288 | with open(os.path.join(os.path.join(o.vpn_dir, "hosts", peer_name)), 'w') as OUTF: 289 | OUTF.write(contents) 290 | 291 | 292 | class Package(TincRollout): 293 | def package(o): 294 | log.info("Packaging %s for sending to other machines." % o.vpn_name) 295 | if os.path.exists(o.tar): 296 | os.unlink(o.tar) 297 | with tarfile.open(o.tar, mode='w') as OUT: 298 | with chdir(o.vpn_dir): 299 | for f in os.listdir(o.hosts_dir): 300 | if not f.endswith("~"): 301 | fname = os.path.join('hosts', f) 302 | OUT.add(fname) 303 | 304 | class Add(TincRollout): 305 | def add_peers(o): 306 | """Add host key files for peers. Overwrites files that 307 | already exists. Doesn't write local host file.""" 308 | 309 | if not os.path.exists(o.tar): 310 | log.warn("Can't find %s, which is fine if this is a new vpn installation" % o.tar) 311 | return 312 | with tarfile.open(o.tar, 'r') as TAR: 313 | for member in TAR.getmembers(): 314 | (direc, fname) = os.path.split(member.name) 315 | if fname != o.hostname: 316 | if not o.peer or fname in o.peer: 317 | ## Sure, we could use TAR.extractall, but 318 | ## reading the data and then writing the host 319 | ## file protects against malicious tar files 320 | ## with absolute paths in them. 321 | contents = TAR.extractfile(member).read() 322 | o.add_peer(fname, contents) 323 | 324 | def add_connect_to(o): 325 | """Look at hosts in hosts dir, add any that have addresses to tinc.conf. 326 | 327 | We can't just look at the tar file because there might be 328 | additional hosts that were added by hand or just happen to be 329 | missing from the tar file. 330 | 331 | Assumes tinc.conf exists so we can add ConnectTo entries. 332 | """ 333 | 334 | connect = [] 335 | for f in os.listdir(o.hosts_dir): 336 | fname = os.path.join(o.hosts_dir, f) 337 | with open(fname, 'r') as INF: 338 | for line in INF.readlines(): 339 | if line.startswith("Address = "): #TODO: this should be a regex 340 | connect.append(f) 341 | 342 | present = [] 343 | with open(os.path.join(o.vpn_dir, 'tinc.conf'), 'r+') as INF: 344 | for line in INF.readlines(): 345 | if line.startswith("ConnectTo = "): 346 | present.append(line.split('=')[1].strip()) 347 | for host in connect: 348 | if not host in present: 349 | INF.write("ConnectTo = %s\n" % host) 350 | 351 | def add(o): 352 | log.info("Adding %s tinc files" % o.vpn_name) 353 | o.hostname = re.sub('[^0-9a-zA-Z_]+', '_', "%s" % o.hostname) # Replace invalid characters for the tinc daemon name with underscores 354 | NewVPN(o).create() # do a base install w/o overwriting keys or config 355 | o.add_peers() 356 | o.add_connect_to() 357 | 358 | log.info("\nIf this machine has a public-facing IP address, you might want to add that to %s." % os.path.join(o.root, o.vpn_name, "hosts", o.hostname) 359 | + "If your machine was not in the tar file, you might want to do `%s --package -n %s` to " % (os.path.basename(sys.argv[0]), o.vpn_name) 360 | + "put your machine in the tar file. Then you can distribute the tar to get others on to the network." 361 | + "\nYou should probably restart the tinc server now.") 362 | 363 | class Remove(TincRollout): 364 | def remove(o): 365 | log.error("Removing hosts not yet implemented.") 366 | 367 | class NewVPN(TincRollout): 368 | """Do a base install, without overwriting existing keys or hosts.""" 369 | def write_config(o, fname): 370 | filespec = os.path.join(o.vpn_dir, fname) 371 | d = { 372 | "tinc-up":"#!/bin/sh\nIP=%s\nifconfig $INTERFACE $IP netmask 255.255.255.0\n" % o.ip, 373 | "tinc-down":"#!/bin/sh\nVPN_NAME=%s\nifconfig $VPN_NAME down\n" % o.vpn_name, 374 | "tinc.conf":"Name = %s\nAddressFamily = ipv4\nDevice = /dev/net/tun\nLocalDiscovery = yes\n" % o.hostname, 375 | } 376 | if os.path.exists(filespec): 377 | contents = slurp_if_exists(filespec) 378 | if d[fname] != contents: 379 | log.warn("%s already exists. Delete %s and run command again if you want to overwrite." % (filespec, filespec)) 380 | return 381 | with open(filespec, 'w') as OUTF: 382 | OUTF.write(d[fname]) 383 | if fname in ['tinc-up', 'tinc-down']: 384 | os.chmod(filespec, os.stat(filespec).st_mode | stat.S_IEXEC) 385 | def write_host(o): 386 | fname = os.path.join(o.hosts_dir, o.hostname) 387 | if not os.path.exists(fname): 388 | with open(fname, 'w') as OUTF: 389 | OUTF.write("Subnet = %s/32\n" % o.ip) 390 | 391 | def create(o): 392 | o.add_nets_boot() 393 | if not os.path.exists(o.vpn_dir): 394 | os.mkdir(o.vpn_dir) 395 | o.write_config('tinc.conf') 396 | o.write_config('tinc-up') 397 | o.write_config('tinc-down') 398 | if not os.path.exists(o.hosts_dir): 399 | os.mkdir(o.hosts_dir) 400 | o.write_host() 401 | o.gen_keys() 402 | 403 | def main(argv): 404 | config_logger() 405 | opt = parse_params(argv) 406 | if opt.action == "package": 407 | Package(opt).package() 408 | elif opt.action == "add": 409 | Add(opt).add() 410 | elif opt.action == "remove": 411 | Remove(opt).remove() 412 | if __name__ == "__main__": 413 | if len(sys.argv) >= 2: 414 | if sys.argv[1] == "document": 415 | with open("README.md", 'w') as OUTF: 416 | OUTF.write(__doc__) 417 | sys.exit() 418 | 419 | main(sys.argv) 420 | -------------------------------------------------------------------------------- /COPYING: -------------------------------------------------------------------------------- 1 | LICENSING 2 | ========= 3 | 4 | tinc-rollout is published under the GNU General Public License, 5 | version 3 or later, which is reproduced here. Below the GPLv3 license 6 | are license notices for other code included in tinc-rollout, if any. 7 | 8 | GPLv3 9 | ----- 10 | 11 | GNU GENERAL PUBLIC LICENSE 12 | Version 3, 29 June 2007 13 | 14 | Copyright (C) 2007 Free Software Foundation, Inc. 15 | Everyone is permitted to copy and distribute verbatim copies 16 | of this license document, but changing it is not allowed. 17 | 18 | Preamble 19 | 20 | The GNU General Public License is a free, copyleft license for 21 | software and other kinds of works. 22 | 23 | The licenses for most software and other practical works are designed 24 | to take away your freedom to share and change the works. By contrast, 25 | the GNU General Public License is intended to guarantee your freedom to 26 | share and change all versions of a program--to make sure it remains free 27 | software for all its users. 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Interpretation of Sections 15 and 16. 623 | 624 | If the disclaimer of warranty and limitation of liability provided 625 | above cannot be given local legal effect according to their terms, 626 | reviewing courts shall apply local law that most closely approximates 627 | an absolute waiver of all civil liability in connection with the 628 | Program, unless a warranty or assumption of liability accompanies a 629 | copy of the Program in return for a fee. 630 | 631 | END OF TERMS AND CONDITIONS 632 | 633 | How to Apply These Terms to Your New Programs 634 | 635 | If you develop a new program, and you want it to be of the greatest 636 | possible use to the public, the best way to achieve this is to make it 637 | free software which everyone can redistribute and change under these terms. 638 | 639 | To do so, attach the following notices to the program. It is safest 640 | to attach them to the start of each source file to most effectively 641 | state the exclusion of warranty; and each file should have at least 642 | the "copyright" line and a pointer to where the full notice is found. 643 | 644 | 645 | Copyright (C) 646 | 647 | This program is free software: you can redistribute it and/or modify 648 | it under the terms of the GNU General Public License as published by 649 | the Free Software Foundation, either version 3 of the License, or 650 | (at your option) any later version. 651 | 652 | This program is distributed in the hope that it will be useful, 653 | but WITHOUT ANY WARRANTY; without even the implied warranty of 654 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 655 | GNU General Public License for more details. 656 | 657 | You should have received a copy of the GNU General Public License 658 | along with this program. If not, see . 659 | 660 | Also add information on how to contact you by electronic and paper mail. 661 | 662 | If the program does terminal interaction, make it output a short 663 | notice like this when it starts in an interactive mode: 664 | 665 | Copyright (C) 666 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 667 | This is free software, and you are welcome to redistribute it 668 | under certain conditions; type `show c' for details. 669 | 670 | The hypothetical commands `show w' and `show c' should show the appropriate 671 | parts of the General Public License. Of course, your program's commands 672 | might be different; for a GUI interface, you would use an "about box". 673 | 674 | You should also get your employer (if you work as a programmer) or school, 675 | if any, to sign a "copyright disclaimer" for the program, if necessary. 676 | For more information on this, and how to apply and follow the GNU GPL, see 677 | . 678 | 679 | The GNU General Public License does not permit incorporating your program 680 | into proprietary programs. If your program is a subroutine library, you 681 | may consider it more useful to permit linking proprietary applications with 682 | the library. If this is what you want to do, use the GNU Lesser General 683 | Public License instead of this License. But first, please read 684 | . 685 | 686 | 687 | SQLAlchemy Migrate 688 | ------------------ 689 | 690 | We took a log filtering class from SQLAlchemy-Migrate. It's license is: 691 | 692 | The MIT License 693 | 694 | Copyright (c) 2009 Evan Rosson, Jan Dittberner, Domen Kožar 695 | 696 | Permission is hereby granted, free of charge, to any person obtaining a copy 697 | of this software and associated documentation files (the "Software"), to deal 698 | in the Software without restriction, including without limitation the rights 699 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 700 | copies of the Software, and to permit persons to whom the Software is 701 | furnished to do so, subject to the following conditions: 702 | 703 | The above copyright notice and this permission notice shall be included in 704 | all copies or substantial portions of the Software. 705 | 706 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 707 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 708 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 709 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 710 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 711 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 712 | THE SOFTWARE. 713 | 714 | --------------------------------------------------------------------------------