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  1. All source code files written for this projects are
  2. Copyright © 2014-2016 zPlus
  3. Licensed as GNU Affero General Public License, either version 3 or (at your option) any later version.
  4. The project uses few external libraries, with the following licenses:
  5. Parsedown MIT License http://parsedown.org
  6. PHP PHP License https://php.net
  7. PHPUnit BSD 3 Clause http://phpunit.de
  8. Twig BSD http://twig.sensiolabs.org
  9. An additional permission applies to Javascript files in the './javascript/' directory,
  10. as explained here https://www.gnu.org/philosophy/javascript-trap.html :
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  13. that code without the copy of the GNU GPL normally required by
  14. section 4, provided you include this license notice and a URL
  15. through which recipients can access the Corresponding Source.
  16. Following is the complete text of AGPLv3:
  17. GNU AFFERO GENERAL PUBLIC LICENSE
  18. Version 3, 19 November 2007
  19. Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
  20. Everyone is permitted to copy and distribute verbatim copies
  21. of this license document, but changing it is not allowed.
  22. Preamble
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  436. A patent license is "discriminatory" if it does not include within
  437. the scope of its coverage, prohibits the exercise of, or is
  438. conditioned on the non-exercise of one or more of the rights that are
  439. specifically granted under this License. You may not convey a covered
  440. work if you are a party to an arrangement with a third party that is
  441. in the business of distributing software, under which you make payment
  442. to the third party based on the extent of your activity of conveying
  443. the work, and under which the third party grants, to any of the
  444. parties who would receive the covered work from you, a discriminatory
  445. patent license (a) in connection with copies of the covered work
  446. conveyed by you (or copies made from those copies), or (b) primarily
  447. for and in connection with specific products or compilations that
  448. contain the covered work, unless you entered into that arrangement,
  449. or that patent license was granted, prior to 28 March 2007.
  450. Nothing in this License shall be construed as excluding or limiting
  451. any implied license or other defenses to infringement that may
  452. otherwise be available to you under applicable patent law.
  453. 12. No Surrender of Others' Freedom.
  454. If conditions are imposed on you (whether by court order, agreement or
  455. otherwise) that contradict the conditions of this License, they do not
  456. excuse you from the conditions of this License. If you cannot convey a
  457. covered work so as to satisfy simultaneously your obligations under this
  458. License and any other pertinent obligations, then as a consequence you may
  459. not convey it at all. For example, if you agree to terms that obligate you
  460. to collect a royalty for further conveying from those to whom you convey
  461. the Program, the only way you could satisfy both those terms and this
  462. License would be to refrain entirely from conveying the Program.
  463. 13. Remote Network Interaction; Use with the GNU General Public License.
  464. Notwithstanding any other provision of this License, if you modify the
  465. Program, your modified version must prominently offer all users
  466. interacting with it remotely through a computer network (if your version
  467. supports such interaction) an opportunity to receive the Corresponding
  468. Source of your version by providing access to the Corresponding Source
  469. from a network server at no charge, through some standard or customary
  470. means of facilitating copying of software. This Corresponding Source
  471. shall include the Corresponding Source for any work covered by version 3
  472. of the GNU General Public License that is incorporated pursuant to the
  473. following paragraph.
  474. Notwithstanding any other provision of this License, you have
  475. permission to link or combine any covered work with a work licensed
  476. under version 3 of the GNU General Public License into a single
  477. combined work, and to convey the resulting work. The terms of this
  478. License will continue to apply to the part which is the covered work,
  479. but the work with which it is combined will remain governed by version
  480. 3 of the GNU General Public License.
  481. 14. Revised Versions of this License.
  482. The Free Software Foundation may publish revised and/or new versions of
  483. the GNU Affero General Public License from time to time. Such new versions
  484. will be similar in spirit to the present version, but may differ in detail to
  485. address new problems or concerns.
  486. Each version is given a distinguishing version number. If the
  487. Program specifies that a certain numbered version of the GNU Affero General
  488. Public License "or any later version" applies to it, you have the
  489. option of following the terms and conditions either of that numbered
  490. version or of any later version published by the Free Software
  491. Foundation. If the Program does not specify a version number of the
  492. GNU Affero General Public License, you may choose any version ever published
  493. by the Free Software Foundation.
  494. If the Program specifies that a proxy can decide which future
  495. versions of the GNU Affero General Public License can be used, that proxy's
  496. public statement of acceptance of a version permanently authorizes you
  497. to choose that version for the Program.
  498. Later license versions may give you additional or different
  499. permissions. However, no additional obligations are imposed on any
  500. author or copyright holder as a result of your choosing to follow a
  501. later version.
  502. 15. Disclaimer of Warranty.
  503. THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
  504. APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
  505. HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
  506. OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
  507. THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  508. PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
  509. IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
  510. ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
  511. 16. Limitation of Liability.
  512. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
  513. WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
  514. THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
  515. GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
  516. USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
  517. DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
  518. PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
  519. EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
  520. SUCH DAMAGES.
  521. 17. Interpretation of Sections 15 and 16.
  522. If the disclaimer of warranty and limitation of liability provided
  523. above cannot be given local legal effect according to their terms,
  524. reviewing courts shall apply local law that most closely approximates
  525. an absolute waiver of all civil liability in connection with the
  526. Program, unless a warranty or assumption of liability accompanies a
  527. copy of the Program in return for a fee.
  528. END OF TERMS AND CONDITIONS
  529. How to Apply These Terms to Your New Programs
  530. If you develop a new program, and you want it to be of the greatest
  531. possible use to the public, the best way to achieve this is to make it
  532. free software which everyone can redistribute and change under these terms.
  533. To do so, attach the following notices to the program. It is safest
  534. to attach them to the start of each source file to most effectively
  535. state the exclusion of warranty; and each file should have at least
  536. the "copyright" line and a pointer to where the full notice is found.
  537. <one line to give the program's name and a brief idea of what it does.>
  538. Copyright (C) <year> <name of author>
  539. This program is free software: you can redistribute it and/or modify
  540. it under the terms of the GNU Affero General Public License as published by
  541. the Free Software Foundation, either version 3 of the License, or
  542. (at your option) any later version.
  543. This program is distributed in the hope that it will be useful,
  544. but WITHOUT ANY WARRANTY; without even the implied warranty of
  545. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  546. GNU Affero General Public License for more details.
  547. You should have received a copy of the GNU Affero General Public License
  548. along with this program. If not, see <http://www.gnu.org/licenses/>.
  549. Also add information on how to contact you by electronic and paper mail.
  550. If your software can interact with users remotely through a computer
  551. network, you should also make sure that it provides a way for users to
  552. get its source. For example, if your program is a web application, its
  553. interface could display a "Source" link that leads users to an archive
  554. of the code. There are many ways you could offer source, and different
  555. solutions will be better for different programs; see section 13 for the
  556. specific requirements.
  557. You should also get your employer (if you work as a programmer) or school,
  558. if any, to sign a "copyright disclaimer" for the program, if necessary.
  559. For more information on this, and how to apply and follow the GNU AGPL, see
  560. <http://www.gnu.org/licenses/>.