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GNU AFFERO GENERAL PUBLIC LICENSE |
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Version 3, 19 November 2007 |
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Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/> |
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Everyone is permitted to copy and distribute verbatim copies |
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of this license document, but changing it is not allowed. |
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Preamble |
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The GNU Affero General Public License is a free, copyleft license for |
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software and other kinds of works, specifically designed to ensure |
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cooperation with the community in the case of network server software. |
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The licenses for most software and other practical works are designed |
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to take away your freedom to share and change the works. By contrast, |
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our General Public Licenses are intended to guarantee your freedom to |
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share and change all versions of a program--to make sure it remains free |
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software for all its users. |
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When we speak of free software, we are referring to freedom, not |
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Developers that use our General Public Licenses protect your rights |
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A secondary benefit of defending all users' freedom is that |
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rights of fair use or other equivalent, as provided by copyright law. |
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Conveying under any other circumstances is permitted solely under |
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No covered work shall be deemed part of an effective technological |
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When you convey a covered work, you waive any legal power to forbid |
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keep intact all notices of the absence of any warranty; and give all |
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a) Convey the object code in, or embodied in, a physical product |
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"Additional permissions" are terms that supplement the terms of this |
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that they are valid under applicable law. If additional permissions |
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When you convey a copy of a covered work, you may at your option |
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You may not propagate or modify a covered work except as expressly |
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You are not required to accept this License in order to receive or |
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Each time you convey a covered work, the recipient automatically |
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rights granted under this License, and you may not initiate litigation |
| 455 |
(including a cross-claim or counterclaim in a lawsuit) alleging that |
| 456 |
any patent claim is infringed by making, using, selling, offering for |
| 457 |
sale, or importing the Program or any portion of it. |
| 458 |
|
| 459 |
11. Patents. |
| 460 |
|
| 461 |
A "contributor" is a copyright holder who authorizes use under this |
| 462 |
License of the Program or a work on which the Program is based. The |
| 463 |
work thus licensed is called the contributor's "contributor version". |
| 464 |
|
| 465 |
A contributor's "essential patent claims" are all patent claims |
| 466 |
owned or controlled by the contributor, whether already acquired or |
| 467 |
hereafter acquired, that would be infringed by some manner, permitted |
| 468 |
by this License, of making, using, or selling its contributor version, |
| 469 |
but do not include claims that would be infringed only as a |
| 470 |
consequence of further modification of the contributor version. For |
| 471 |
purposes of this definition, "control" includes the right to grant |
| 472 |
patent sublicenses in a manner consistent with the requirements of |
| 473 |
this License. |
| 474 |
|
| 475 |
Each contributor grants you a non-exclusive, worldwide, royalty-free |
| 476 |
patent license under the contributor's essential patent claims, to |
| 477 |
make, use, sell, offer for sale, import and otherwise run, modify and |
| 478 |
propagate the contents of its contributor version. |
| 479 |
|
| 480 |
In the following three paragraphs, a "patent license" is any express |
| 481 |
agreement or commitment, however denominated, not to enforce a patent |
| 482 |
(such as an express permission to practice a patent or covenant not to |
| 483 |
sue for patent infringement). To "grant" such a patent license to a |
| 484 |
party means to make such an agreement or commitment not to enforce a |
| 485 |
patent against the party. |
| 486 |
|
| 487 |
If you convey a covered work, knowingly relying on a patent license, |
| 488 |
and the Corresponding Source of the work is not available for anyone |
| 489 |
to copy, free of charge and under the terms of this License, through a |
| 490 |
publicly available network server or other readily accessible means, |
| 491 |
then you must either (1) cause the Corresponding Source to be so |
| 492 |
available, or (2) arrange to deprive yourself of the benefit of the |
| 493 |
patent license for this particular work, or (3) arrange, in a manner |
| 494 |
consistent with the requirements of this License, to extend the patent |
| 495 |
license to downstream recipients. "Knowingly relying" means you have |
| 496 |
actual knowledge that, but for the patent license, your conveying the |
| 497 |
covered work in a country, or your recipient's use of the covered work |
| 498 |
in a country, would infringe one or more identifiable patents in that |
| 499 |
country that you have reason to believe are valid. |
| 500 |
|
| 501 |
If, pursuant to or in connection with a single transaction or |
| 502 |
arrangement, you convey, or propagate by procuring conveyance of, a |
| 503 |
covered work, and grant a patent license to some of the parties |
| 504 |
receiving the covered work authorizing them to use, propagate, modify |
| 505 |
or convey a specific copy of the covered work, then the patent license |
| 506 |
you grant is automatically extended to all recipients of the covered |
| 507 |
work and works based on it. |
| 508 |
|
| 509 |
A patent license is "discriminatory" if it does not include within |
| 510 |
the scope of its coverage, prohibits the exercise of, or is |
| 511 |
conditioned on the non-exercise of one or more of the rights that are |
| 512 |
specifically granted under this License. You may not convey a covered |
| 513 |
work if you are a party to an arrangement with a third party that is |
| 514 |
in the business of distributing software, under which you make payment |
| 515 |
to the third party based on the extent of your activity of conveying |
| 516 |
the work, and under which the third party grants, to any of the |
| 517 |
parties who would receive the covered work from you, a discriminatory |
| 518 |
patent license (a) in connection with copies of the covered work |
| 519 |
conveyed by you (or copies made from those copies), or (b) primarily |
| 520 |
for and in connection with specific products or compilations that |
| 521 |
contain the covered work, unless you entered into that arrangement, |
| 522 |
or that patent license was granted, prior to 28 March 2007. |
| 523 |
|
| 524 |
Nothing in this License shall be construed as excluding or limiting |
| 525 |
any implied license or other defenses to infringement that may |
| 526 |
otherwise be available to you under applicable patent law. |
| 527 |
|
| 528 |
12. No Surrender of Others' Freedom. |
| 529 |
|
| 530 |
If conditions are imposed on you (whether by court order, agreement or |
| 531 |
otherwise) that contradict the conditions of this License, they do not |
| 532 |
excuse you from the conditions of this License. If you cannot convey a |
| 533 |
covered work so as to satisfy simultaneously your obligations under this |
| 534 |
License and any other pertinent obligations, then as a consequence you may |
| 535 |
not convey it at all. For example, if you agree to terms that obligate you |
| 536 |
to collect a royalty for further conveying from those to whom you convey |
| 537 |
the Program, the only way you could satisfy both those terms and this |
| 538 |
License would be to refrain entirely from conveying the Program. |
| 539 |
|
| 540 |
13. Remote Network Interaction; Use with the GNU General Public License. |
| 541 |
|
| 542 |
Notwithstanding any other provision of this License, if you modify the |
| 543 |
Program, your modified version must prominently offer all users |
| 544 |
interacting with it remotely through a computer network (if your version |
| 545 |
supports such interaction) an opportunity to receive the Corresponding |
| 546 |
Source of your version by providing access to the Corresponding Source |
| 547 |
from a network server at no charge, through some standard or customary |
| 548 |
means of facilitating copying of software. This Corresponding Source |
| 549 |
shall include the Corresponding Source for any work covered by version 3 |
| 550 |
of the GNU General Public License that is incorporated pursuant to the |
| 551 |
following paragraph. |
| 552 |
|
| 553 |
Notwithstanding any other provision of this License, you have |
| 554 |
permission to link or combine any covered work with a work licensed |
| 555 |
under version 3 of the GNU General Public License into a single |
| 556 |
combined work, and to convey the resulting work. The terms of this |
| 557 |
License will continue to apply to the part which is the covered work, |
| 558 |
but the work with which it is combined will remain governed by version |
| 559 |
3 of the GNU General Public License. |
| 560 |
|
| 561 |
14. Revised Versions of this License. |
| 562 |
|
| 563 |
The Free Software Foundation may publish revised and/or new versions of |
| 564 |
the GNU Affero General Public License from time to time. Such new versions |
| 565 |
will be similar in spirit to the present version, but may differ in detail to |
| 566 |
address new problems or concerns. |
| 567 |
|
| 568 |
Each version is given a distinguishing version number. If the |
| 569 |
Program specifies that a certain numbered version of the GNU Affero General |
| 570 |
Public License "or any later version" applies to it, you have the |
| 571 |
option of following the terms and conditions either of that numbered |
| 572 |
version or of any later version published by the Free Software |
| 573 |
Foundation. If the Program does not specify a version number of the |
| 574 |
GNU Affero General Public License, you may choose any version ever published |
| 575 |
by the Free Software Foundation. |
| 576 |
|
| 577 |
If the Program specifies that a proxy can decide which future |
| 578 |
versions of the GNU Affero General Public License can be used, that proxy's |
| 579 |
public statement of acceptance of a version permanently authorizes you |
| 580 |
to choose that version for the Program. |
| 581 |
|
| 582 |
Later license versions may give you additional or different |
| 583 |
permissions. However, no additional obligations are imposed on any |
| 584 |
author or copyright holder as a result of your choosing to follow a |
| 585 |
later version. |
| 586 |
|
| 587 |
15. Disclaimer of Warranty. |
| 588 |
|
| 589 |
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY |
| 590 |
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT |
| 591 |
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY |
| 592 |
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, |
| 593 |
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 594 |
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM |
| 595 |
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF |
| 596 |
ALL NECESSARY SERVICING, REPAIR OR CORRECTION. |
| 597 |
|
| 598 |
16. Limitation of Liability. |
| 599 |
|
| 600 |
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING |
| 601 |
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS |
| 602 |
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY |
| 603 |
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE |
| 604 |
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF |
| 605 |
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD |
| 606 |
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), |
| 607 |
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF |
| 608 |
SUCH DAMAGES. |
| 609 |
|
| 610 |
17. Interpretation of Sections 15 and 16. |
| 611 |
|
| 612 |
If the disclaimer of warranty and limitation of liability provided |
| 613 |
above cannot be given local legal effect according to their terms, |
| 614 |
reviewing courts shall apply local law that most closely approximates |
| 615 |
an absolute waiver of all civil liability in connection with the |
| 616 |
Program, unless a warranty or assumption of liability accompanies a |
| 617 |
copy of the Program in return for a fee. |
| 618 |
|
| 619 |
END OF TERMS AND CONDITIONS |
| 620 |
|
| 621 |
How to Apply These Terms to Your New Programs |
| 622 |
|
| 623 |
If you develop a new program, and you want it to be of the greatest |
| 624 |
possible use to the public, the best way to achieve this is to make it |
| 625 |
free software which everyone can redistribute and change under these terms. |
| 626 |
|
| 627 |
To do so, attach the following notices to the program. It is safest |
| 628 |
to attach them to the start of each source file to most effectively |
| 629 |
state the exclusion of warranty; and each file should have at least |
| 630 |
the "copyright" line and a pointer to where the full notice is found. |
| 631 |
|
| 632 |
<one line to give the program's name and a brief idea of what it does.> |
| 633 |
Copyright (C) <year> <name of author> |
| 634 |
|
| 635 |
This program is free software: you can redistribute it and/or modify |
| 636 |
it under the terms of the GNU Affero General Public License as published by |
| 637 |
the Free Software Foundation, either version 3 of the License, or |
| 638 |
(at your option) any later version. |
| 639 |
|
| 640 |
This program is distributed in the hope that it will be useful, |
| 641 |
but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 642 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 643 |
GNU Affero General Public License for more details. |
| 644 |
|
| 645 |
You should have received a copy of the GNU Affero General Public License |
| 646 |
along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 647 |
|
| 648 |
Also add information on how to contact you by electronic and paper mail. |
| 649 |
|
| 650 |
If your software can interact with users remotely through a computer |
| 651 |
network, you should also make sure that it provides a way for users to |
| 652 |
get its source. For example, if your program is a web application, its |
| 653 |
interface could display a "Source" link that leads users to an archive |
| 654 |
of the code. There are many ways you could offer source, and different |
| 655 |
solutions will be better for different programs; see section 13 for the |
| 656 |
specific requirements. |
| 657 |
|
| 658 |
You should also get your employer (if you work as a programmer) or school, |
| 659 |
if any, to sign a "copyright disclaimer" for the program, if necessary. |
| 660 |
For more information on this, and how to apply and follow the GNU AGPL, see |
| 661 |
<http://www.gnu.org/licenses/>. |