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0001 GNU AFFERO GENERAL PUBLIC LICENSE 0002 Version 3, 19 November 2007 0003 0004 Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/> 0005 Everyone is permitted to copy and distribute verbatim copies 0006 of this license document, but changing it is not allowed. 0007 0008 Preamble 0009 0010 The GNU Affero General Public License is a free, copyleft license for 0011 software and other kinds of works, specifically designed to ensure 0012 cooperation with the community in the case of network server software. 0013 0014 The licenses for most software and other practical works are designed 0015 to take away your freedom to share and change the works. By contrast, 0016 our General Public Licenses are intended to guarantee your freedom to 0017 share and change all versions of a program--to make sure it remains free 0018 software for all its users. 0019 0020 When we speak of free software, we are referring to freedom, not 0021 price. Our General Public Licenses are designed to make sure that you 0022 have the freedom to distribute copies of free software (and charge for 0023 them if you wish), that you receive source code or can get it if you 0024 want it, that you can change the software or use pieces of it in new 0025 free programs, and that you know you can do these things. 0026 0027 Developers that use our General Public Licenses protect your rights 0028 with two steps: (1) assert copyright on the software, and (2) offer 0029 you this License which gives you legal permission to copy, distribute 0030 and/or modify the software. 0031 0032 A secondary benefit of defending all users' freedom is that 0033 improvements made in alternate versions of the program, if they 0034 receive widespread use, become available for other developers to 0035 incorporate. Many developers of free software are heartened and 0036 encouraged by the resulting cooperation. However, in the case of 0037 software used on network servers, this result may fail to come about. 0038 The GNU General Public License permits making a modified version and 0039 letting the public access it on a server without ever releasing its 0040 source code to the public. 0041 0042 The GNU Affero General Public License is designed specifically to 0043 ensure that, in such cases, the modified source code becomes available 0044 to the community. It requires the operator of a network server to 0045 provide the source code of the modified version running there to the 0046 users of that server. Therefore, public use of a modified version, on 0047 a publicly accessible server, gives the public access to the source 0048 code of the modified version. 0049 0050 An older license, called the Affero General Public License and 0051 published by Affero, was designed to accomplish similar goals. 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Automatic Licensing of Downstream Recipients. 0435 0436 Each time you convey a covered work, the recipient automatically 0437 receives a license from the original licensors, to run, modify and 0438 propagate that work, subject to this License. You are not responsible 0439 for enforcing compliance by third parties with this License. 0440 0441 An "entity transaction" is a transaction transferring control of an 0442 organization, or substantially all assets of one, or subdividing an 0443 organization, or merging organizations. 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Patents. 0460 0461 A "contributor" is a copyright holder who authorizes use under this 0462 License of the Program or a work on which the Program is based. The 0463 work thus licensed is called the contributor's "contributor version". 0464 0465 A contributor's "essential patent claims" are all patent claims 0466 owned or controlled by the contributor, whether already acquired or 0467 hereafter acquired, that would be infringed by some manner, permitted 0468 by this License, of making, using, or selling its contributor version, 0469 but do not include claims that would be infringed only as a 0470 consequence of further modification of the contributor version. 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To "grant" such a patent license to a 0484 party means to make such an agreement or commitment not to enforce a 0485 patent against the party. 0486 0487 If you convey a covered work, knowingly relying on a patent license, 0488 and the Corresponding Source of the work is not available for anyone 0489 to copy, free of charge and under the terms of this License, through a 0490 publicly available network server or other readily accessible means, 0491 then you must either (1) cause the Corresponding Source to be so 0492 available, or (2) arrange to deprive yourself of the benefit of the 0493 patent license for this particular work, or (3) arrange, in a manner 0494 consistent with the requirements of this License, to extend the patent 0495 license to downstream recipients. "Knowingly relying" means you have 0496 actual knowledge that, but for the patent license, your conveying the 0497 covered work in a country, or your recipient's use of the covered work 0498 in a country, would infringe one or more identifiable patents in that 0499 country that you have reason to believe are valid. 0500 0501 If, pursuant to or in connection with a single transaction or 0502 arrangement, you convey, or propagate by procuring conveyance of, a 0503 covered work, and grant a patent license to some of the parties 0504 receiving the covered work authorizing them to use, propagate, modify 0505 or convey a specific copy of the covered work, then the patent license 0506 you grant is automatically extended to all recipients of the covered 0507 work and works based on it. 0508 0509 A patent license is "discriminatory" if it does not include within 0510 the scope of its coverage, prohibits the exercise of, or is 0511 conditioned on the non-exercise of one or more of the rights that are 0512 specifically granted under this License. You may not convey a covered 0513 work if you are a party to an arrangement with a third party that is 0514 in the business of distributing software, under which you make payment 0515 to the third party based on the extent of your activity of conveying 0516 the work, and under which the third party grants, to any of the 0517 parties who would receive the covered work from you, a discriminatory 0518 patent license (a) in connection with copies of the covered work 0519 conveyed by you (or copies made from those copies), or (b) primarily 0520 for and in connection with specific products or compilations that 0521 contain the covered work, unless you entered into that arrangement, 0522 or that patent license was granted, prior to 28 March 2007. 0523 0524 Nothing in this License shall be construed as excluding or limiting 0525 any implied license or other defenses to infringement that may 0526 otherwise be available to you under applicable patent law. 0527 0528 12. No Surrender of Others' Freedom. 0529 0530 If conditions are imposed on you (whether by court order, agreement or 0531 otherwise) that contradict the conditions of this License, they do not 0532 excuse you from the conditions of this License. If you cannot convey a 0533 covered work so as to satisfy simultaneously your obligations under this 0534 License and any other pertinent obligations, then as a consequence you may 0535 not convey it at all. For example, if you agree to terms that obligate you 0536 to collect a royalty for further conveying from those to whom you convey 0537 the Program, the only way you could satisfy both those terms and this 0538 License would be to refrain entirely from conveying the Program. 0539 0540 13. Remote Network Interaction; Use with the GNU General Public License. 0541 0542 Notwithstanding any other provision of this License, if you modify the 0543 Program, your modified version must prominently offer all users 0544 interacting with it remotely through a computer network (if your version 0545 supports such interaction) an opportunity to receive the Corresponding 0546 Source of your version by providing access to the Corresponding Source 0547 from a network server at no charge, through some standard or customary 0548 means of facilitating copying of software. This Corresponding Source 0549 shall include the Corresponding Source for any work covered by version 3 0550 of the GNU General Public License that is incorporated pursuant to the 0551 following paragraph. 0552 0553 Notwithstanding any other provision of this License, you have 0554 permission to link or combine any covered work with a work licensed 0555 under version 3 of the GNU General Public License into a single 0556 combined work, and to convey the resulting work. The terms of this 0557 License will continue to apply to the part which is the covered work, 0558 but the work with which it is combined will remain governed by version 0559 3 of the GNU General Public License. 0560 0561 14. Revised Versions of this License. 0562 0563 The Free Software Foundation may publish revised and/or new versions of 0564 the GNU Affero General Public License from time to time. Such new versions 0565 will be similar in spirit to the present version, but may differ in detail to 0566 address new problems or concerns. 0567 0568 Each version is given a distinguishing version number. If the 0569 Program specifies that a certain numbered version of the GNU Affero General 0570 Public License "or any later version" applies to it, you have the 0571 option of following the terms and conditions either of that numbered 0572 version or of any later version published by the Free Software 0573 Foundation. If the Program does not specify a version number of the 0574 GNU Affero General Public License, you may choose any version ever published 0575 by the Free Software Foundation. 0576 0577 If the Program specifies that a proxy can decide which future 0578 versions of the GNU Affero General Public License can be used, that proxy's 0579 public statement of acceptance of a version permanently authorizes you 0580 to choose that version for the Program. 0581 0582 Later license versions may give you additional or different 0583 permissions. However, no additional obligations are imposed on any 0584 author or copyright holder as a result of your choosing to follow a 0585 later version. 0586 0587 15. Disclaimer of Warranty. 0588 0589 THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 0590 APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 0591 HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 0592 OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 0593 THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 0594 PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 0595 IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 0596 ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 0597 0598 16. Limitation of Liability. 0599 0600 IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 0601 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 0602 THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 0603 GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 0604 USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 0605 DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 0606 PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 0607 EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 0608 SUCH DAMAGES. 0609 0610 17. Interpretation of Sections 15 and 16. 0611 0612 If the disclaimer of warranty and limitation of liability provided 0613 above cannot be given local legal effect according to their terms, 0614 reviewing courts shall apply local law that most closely approximates 0615 an absolute waiver of all civil liability in connection with the 0616 Program, unless a warranty or assumption of liability accompanies a 0617 copy of the Program in return for a fee. 0618 0619 END OF TERMS AND CONDITIONS 0620 0621 How to Apply These Terms to Your New Programs 0622 0623 If you develop a new program, and you want it to be of the greatest 0624 possible use to the public, the best way to achieve this is to make it 0625 free software which everyone can redistribute and change under these terms. 0626 0627 To do so, attach the following notices to the program. It is safest 0628 to attach them to the start of each source file to most effectively 0629 state the exclusion of warranty; and each file should have at least 0630 the "copyright" line and a pointer to where the full notice is found. 0631 0632 <one line to give the program's name and a brief idea of what it does.> 0633 Copyright (C) <year> <name of author> 0634 0635 This program is free software: you can redistribute it and/or modify 0636 it under the terms of the GNU Affero General Public License as published 0637 by the Free Software Foundation, either version 3 of the License, or 0638 (at your option) any later version. 0639 0640 This program is distributed in the hope that it will be useful, 0641 but WITHOUT ANY WARRANTY; without even the implied warranty of 0642 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 0643 GNU Affero General Public License for more details. 0644 0645 You should have received a copy of the GNU Affero General Public License 0646 along with this program. If not, see <http://www.gnu.org/licenses/>. 0647 0648 Also add information on how to contact you by electronic and paper mail. 0649 0650 If your software can interact with users remotely through a computer 0651 network, you should also make sure that it provides a way for users to 0652 get its source. For example, if your program is a web application, its 0653 interface could display a "Source" link that leads users to an archive 0654 of the code. There are many ways you could offer source, and different 0655 solutions will be better for different programs; see section 13 for the 0656 specific requirements. 0657 0658 You should also get your employer (if you work as a programmer) or school, 0659 if any, to sign a "copyright disclaimer" for the program, if necessary. 0660 For more information on this, and how to apply and follow the GNU AGPL, see 0661 <http://www.gnu.org/licenses/>.