COPYING 19 KB

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  1. == License and copyright information ==
  2. === License ===
  3. MediaWiki is licensed under the terms of the GNU General Public License,
  4. version 2 or later. Derivative works and later versions of the code must be
  5. free software licensed under the same or a compatible license. This includes
  6. "extensions" that use MediaWiki functions or variables; see
  7. https://www.gnu.org/licenses/gpl-faq.html#GPLAndPlugins for details.
  8. For the full text of version 2 of the license, see
  9. https://www.gnu.org/licenses/gpl-2.0.html or '''GNU General Public License'''
  10. below.
  11. === Copyright owners ===
  12. MediaWiki contributors, including those listed in the CREDITS file, hold the
  13. copyright to this work.
  14. === Additional license information ===
  15. Some components of MediaWiki imported from other projects may be under other
  16. Free and Open Source, or Free Culture, licenses. Specific details of their
  17. licensing information can be found in those components.
  18. Sections of code written exclusively by Lee Crocker or Erik Moeller are also
  19. released into the public domain, which does not impair the obligations of users
  20. under the GPL for use of the whole code or other sections thereof.
  21. MediaWiki uses the following Creative Commons icons to illustrate links to the
  22. CC licenses:
  23. * resources/assets/licenses/cc-0.png
  24. * resources/assets/licenses/cc-by-nc-sa.png
  25. * resources/assets/licenses/cc-by-sa.png
  26. * resources/assets/licenses/cc-by.png
  27. These icons are trademarked, and used subject to the CC trademark license,
  28. available at https://creativecommons.org/policies#trademark
  29. == GNU GENERAL PUBLIC LICENSE ==
  30. Version 2, June 1991
  31. Copyright (C) 1989, 1991 Free Software Foundation, Inc.
  32. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
  33. Everyone is permitted to copy and distribute verbatim copies
  34. of this license document, but changing it is not allowed.
  35. === Preamble ===
  36. The licenses for most software are designed to take away your
  37. freedom to share and change it. By contrast, the GNU General Public
  38. License is intended to guarantee your freedom to share and change free
  39. software--to make sure the software is free for all its users. This
  40. General Public License applies to most of the Free Software
  41. Foundation's software and to any other program whose authors commit to
  42. using it. (Some other Free Software Foundation software is covered by
  43. the GNU Library General Public License instead.) You can apply it to
  44. your programs, too.
  45. When we speak of free software, we are referring to freedom, not
  46. price. Our General Public Licenses are designed to make sure that you
  47. have the freedom to distribute copies of free software (and charge for
  48. this service if you wish), that you receive source code or can get it
  49. if you want it, that you can change the software or use pieces of it
  50. in new free programs; and that you know you can do these things.
  51. To protect your rights, we need to make restrictions that forbid
  52. anyone to deny you these rights or to ask you to surrender the rights.
  53. These restrictions translate to certain responsibilities for you if you
  54. distribute copies of the software, or if you modify it.
  55. For example, if you distribute copies of such a program, whether
  56. gratis or for a fee, you must give the recipients all the rights that
  57. you have. You must make sure that they, too, receive or can get the
  58. source code. And you must show them these terms so they know their
  59. rights.
  60. We protect your rights with two steps: (1) copyright the software, and
  61. (2) offer you this license which gives you legal permission to copy,
  62. distribute and/or modify the software.
  63. Also, for each author's protection and ours, we want to make certain
  64. that everyone understands that there is no warranty for this free
  65. software. If the software is modified by someone else and passed on, we
  66. want its recipients to know that what they have is not the original, so
  67. that any problems introduced by others will not reflect on the original
  68. authors' reputations.
  69. Finally, any free program is threatened constantly by software
  70. patents. We wish to avoid the danger that redistributors of a free
  71. program will individually obtain patent licenses, in effect making the
  72. program proprietary. To prevent this, we have made it clear that any
  73. patent must be licensed for everyone's free use or not licensed at all.
  74. The precise terms and conditions for copying, distribution and
  75. modification follow.
  76. == TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION ==
  77. '''0.''' This License applies to any program or other work which contains
  78. a notice placed by the copyright holder saying it may be distributed
  79. under the terms of this General Public License. The "Program", below,
  80. refers to any such program or work, and a "work based on the Program"
  81. means either the Program or any derivative work under copyright law:
  82. that is to say, a work containing the Program or a portion of it,
  83. either verbatim or with modifications and/or translated into another
  84. language. (Hereinafter, translation is included without limitation in
  85. the term "modification".) Each licensee is addressed as "you".
  86. Activities other than copying, distribution and modification are not
  87. covered by this License; they are outside its scope. The act of
  88. running the Program is not restricted, and the output from the Program
  89. is covered only if its contents constitute a work based on the
  90. Program (independent of having been made by running the Program).
  91. Whether that is true depends on what the Program does.
  92. '''1.''' You may copy and distribute verbatim copies of the Program's
  93. source code as you receive it, in any medium, provided that you
  94. conspicuously and appropriately publish on each copy an appropriate
  95. copyright notice and disclaimer of warranty; keep intact all the
  96. notices that refer to this License and to the absence of any warranty;
  97. and give any other recipients of the Program a copy of this License
  98. along with the Program.
  99. You may charge a fee for the physical act of transferring a copy, and
  100. you may at your option offer warranty protection in exchange for a fee.
  101. '''2.''' You may modify your copy or copies of the Program or any portion
  102. of it, thus forming a work based on the Program, and copy and
  103. distribute such modifications or work under the terms of Section 1
  104. above, provided that you also meet all of these conditions:
  105. '''a)''' You must cause the modified files to carry prominent notices
  106. stating that you changed the files and the date of any change.
  107. '''b)''' You must cause any work that you distribute or publish, that in
  108. whole or in part contains or is derived from the Program or any
  109. part thereof, to be licensed as a whole at no charge to all third
  110. parties under the terms of this License.
  111. '''c)''' If the modified program normally reads commands interactively
  112. when run, you must cause it, when started running for such
  113. interactive use in the most ordinary way, to print or display an
  114. announcement including an appropriate copyright notice and a
  115. notice that there is no warranty (or else, saying that you provide
  116. a warranty) and that users may redistribute the program under
  117. these conditions, and telling the user how to view a copy of this
  118. License. (Exception: if the Program itself is interactive but
  119. does not normally print such an announcement, your work based on
  120. the Program is not required to print an announcement.)
  121. These requirements apply to the modified work as a whole. If
  122. identifiable sections of that work are not derived from the Program,
  123. and can be reasonably considered independent and separate works in
  124. themselves, then this License, and its terms, do not apply to those
  125. sections when you distribute them as separate works. But when you
  126. distribute the same sections as part of a whole which is a work based
  127. on the Program, the distribution of the whole must be on the terms of
  128. this License, whose permissions for other licensees extend to the
  129. entire whole, and thus to each and every part regardless of who wrote it.
  130. Thus, it is not the intent of this section to claim rights or contest
  131. your rights to work written entirely by you; rather, the intent is to
  132. exercise the right to control the distribution of derivative or
  133. collective works based on the Program.
  134. In addition, mere aggregation of another work not based on the Program
  135. with the Program (or with a work based on the Program) on a volume of
  136. a storage or distribution medium does not bring the other work under
  137. the scope of this License.
  138. '''3.''' You may copy and distribute the Program (or a work based on it,
  139. under Section 2) in object code or executable form under the terms of
  140. Sections 1 and 2 above provided that you also do one of the following:
  141. '''a)''' Accompany it with the complete corresponding machine-readable
  142. source code, which must be distributed under the terms of Sections
  143. 1 and 2 above on a medium customarily used for software interchange; or,
  144. '''b)''' Accompany it with a written offer, valid for at least three
  145. years, to give any third party, for a charge no more than your
  146. cost of physically performing source distribution, a complete
  147. machine-readable copy of the corresponding source code, to be
  148. distributed under the terms of Sections 1 and 2 above on a medium
  149. customarily used for software interchange; or,
  150. '''c)''' Accompany it with the information you received as to the offer
  151. to distribute corresponding source code. (This alternative is
  152. allowed only for noncommercial distribution and only if you
  153. received the program in object code or executable form with such
  154. an offer, in accord with Subsection b above.)
  155. The source code for a work means the preferred form of the work for
  156. making modifications to it. For an executable work, complete source
  157. code means all the source code for all modules it contains, plus any
  158. associated interface definition files, plus the scripts used to
  159. control compilation and installation of the executable. However, as a
  160. special exception, the source code distributed need not include
  161. anything that is normally distributed (in either source or binary
  162. form) with the major components (compiler, kernel, and so on) of the
  163. operating system on which the executable runs, unless that component
  164. itself accompanies the executable.
  165. If distribution of executable or object code is made by offering
  166. access to copy from a designated place, then offering equivalent
  167. access to copy the source code from the same place counts as
  168. distribution of the source code, even though third parties are not
  169. compelled to copy the source along with the object code.
  170. '''4.''' You may not copy, modify, sublicense, or distribute the Program
  171. except as expressly provided under this License. Any attempt
  172. otherwise to copy, modify, sublicense or distribute the Program is
  173. void, and will automatically terminate your rights under this License.
  174. However, parties who have received copies, or rights, from you under
  175. this License will not have their licenses terminated so long as such
  176. parties remain in full compliance.
  177. '''5.''' You are not required to accept this License, since you have not
  178. signed it. However, nothing else grants you permission to modify or
  179. distribute the Program or its derivative works. These actions are
  180. prohibited by law if you do not accept this License. Therefore, by
  181. modifying or distributing the Program (or any work based on the
  182. Program), you indicate your acceptance of this License to do so, and
  183. all its terms and conditions for copying, distributing or modifying
  184. the Program or works based on it.
  185. '''6.''' Each time you redistribute the Program (or any work based on the
  186. Program), the recipient automatically receives a license from the
  187. original licensor to copy, distribute or modify the Program subject to
  188. these terms and conditions. You may not impose any further
  189. restrictions on the recipients' exercise of the rights granted herein.
  190. You are not responsible for enforcing compliance by third parties to
  191. this License.
  192. '''7.''' If, as a consequence of a court judgment or allegation of patent
  193. infringement or for any other reason (not limited to patent issues),
  194. conditions are imposed on you (whether by court order, agreement or
  195. otherwise) that contradict the conditions of this License, they do not
  196. excuse you from the conditions of this License. If you cannot
  197. distribute so as to satisfy simultaneously your obligations under this
  198. License and any other pertinent obligations, then as a consequence you
  199. may not distribute the Program at all. For example, if a patent
  200. license would not permit royalty-free redistribution of the Program by
  201. all those who receive copies directly or indirectly through you, then
  202. the only way you could satisfy both it and this License would be to
  203. refrain entirely from distribution of the Program.
  204. If any portion of this section is held invalid or unenforceable under
  205. any particular circumstance, the balance of the section is intended to
  206. apply and the section as a whole is intended to apply in other
  207. circumstances.
  208. It is not the purpose of this section to induce you to infringe any
  209. patents or other property right claims or to contest validity of any
  210. such claims; this section has the sole purpose of protecting the
  211. integrity of the free software distribution system, which is
  212. implemented by public license practices. Many people have made
  213. generous contributions to the wide range of software distributed
  214. through that system in reliance on consistent application of that
  215. system; it is up to the author/donor to decide if he or she is willing
  216. to distribute software through any other system and a licensee cannot
  217. impose that choice.
  218. This section is intended to make thoroughly clear what is believed to
  219. be a consequence of the rest of this License.
  220. '''8.''' If the distribution and/or use of the Program is restricted in
  221. certain countries either by patents or by copyrighted interfaces, the
  222. original copyright holder who places the Program under this License
  223. may add an explicit geographical distribution limitation excluding
  224. those countries, so that distribution is permitted only in or among
  225. countries not thus excluded. In such case, this License incorporates
  226. the limitation as if written in the body of this License.
  227. '''9.''' The Free Software Foundation may publish revised and/or new versions
  228. of the General Public License from time to time. Such new versions will
  229. be similar in spirit to the present version, but may differ in detail to
  230. address new problems or concerns.
  231. Each version is given a distinguishing version number. If the Program
  232. specifies a version number of this License which applies to it and "any
  233. later version", you have the option of following the terms and conditions
  234. either of that version or of any later version published by the Free
  235. Software Foundation. If the Program does not specify a version number of
  236. this License, you may choose any version ever published by the Free Software
  237. Foundation.
  238. '''10.''' If you wish to incorporate parts of the Program into other free
  239. programs whose distribution conditions are different, write to the author
  240. to ask for permission. For software which is copyrighted by the Free
  241. Software Foundation, write to the Free Software Foundation; we sometimes
  242. make exceptions for this. Our decision will be guided by the two goals
  243. of preserving the free status of all derivatives of our free software and
  244. of promoting the sharing and reuse of software generally.
  245. === NO WARRANTY ===
  246. '''11.''' BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
  247. FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
  248. OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
  249. PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
  250. OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  251. MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
  252. TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
  253. PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
  254. REPAIR OR CORRECTION.
  255. '''12.''' IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
  256. WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
  257. REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
  258. INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
  259. OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
  260. TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
  261. YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
  262. PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
  263. POSSIBILITY OF SUCH DAMAGES.
  264. '''END OF TERMS AND CONDITIONS'''
  265. == How to Apply These Terms to Your New Programs ==
  266. If you develop a new program, and you want it to be of the greatest
  267. possible use to the public, the best way to achieve this is to make it
  268. free software which everyone can redistribute and change under these terms.
  269. To do so, attach the following notices to the program. It is safest
  270. to attach them to the start of each source file to most effectively
  271. convey the exclusion of warranty; and each file should have at least
  272. the "copyright" line and a pointer to where the full notice is found.
  273. <one line to give the program's name and a brief idea of what it does.>
  274. Copyright (C) <year> <name of author>
  275. This program is free software; you can redistribute it and/or modify
  276. it under the terms of the GNU General Public License as published by
  277. the Free Software Foundation; either version 2 of the License, or
  278. (at your option) any later version.
  279. This program is distributed in the hope that it will be useful,
  280. but WITHOUT ANY WARRANTY; without even the implied warranty of
  281. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  282. GNU General Public License for more details.
  283. You should have received a copy of the GNU General Public License
  284. along with this program; if not, write to the Free Software
  285. Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
  286. Also add information on how to contact you by electronic and paper mail.
  287. If the program is interactive, make it output a short notice like this
  288. when it starts in an interactive mode:
  289. Gnomovision version 69, Copyright (C) year name of author
  290. Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
  291. This is free software, and you are welcome to redistribute it
  292. under certain conditions; type `show c' for details.
  293. The hypothetical commands `show w' and `show c' should show the appropriate
  294. parts of the General Public License. Of course, the commands you use may
  295. be called something other than `show w' and `show c'; they could even be
  296. mouse-clicks or menu items--whatever suits your program.
  297. You should also get your employer (if you work as a programmer) or your
  298. school, if any, to sign a "copyright disclaimer" for the program, if
  299. necessary. Here is a sample; alter the names:
  300. Yoyodyne, Inc., hereby disclaims all copyright interest in the program
  301. `Gnomovision' (which makes passes at compilers) written by James Hacker.
  302. <signature of Ty Coon>, 1 April 1989
  303. Ty Coon, President of Vice
  304. This General Public License does not permit incorporating your program into
  305. proprietary programs. If your program is a subroutine library, you may
  306. consider it more useful to permit linking proprietary applications with the
  307. library. If this is what you want to do, use the GNU Library General
  308. Public License instead of this License.