GNU Affero General Public License version 3

Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies of this 
license document, but changing it is not allowed.

Preamble
The GNU Affero General Public License is a free, copyleft license for 
software and other kinds of works, specifically designed to ensure 
cooperation with the community in the case of network server software.

The licenses for most software and other practical works are designed 
to take away your freedom to share and change the works. By contrast, 
our General Public Licenses are intended to guarantee your freedom to 
share and change all versions of a program--to make sure it remains free 
software for all its users.

When we speak of free software, we are referring to freedom, not price. 
Our General Public Licenses are designed to make sure that you have the 
freedom to distribute copies of free software (and charge for them if 
you wish), that you receive source code or can get it if you want it, that 
you can change the software or use pieces of it in new free programs, and 
that you know you can do these things.

Developers that use our General Public Licenses protect your rights with 
two steps: (1) assert copyright on the software, and (2) offer you this 
License which gives you legal permission to copy, distribute and/or modify 
the software.

A secondary benefit of defending all users' freedom is that improvements 
made in alternate versions of the program, if they receive widespread use, 
become available for other developers to incorporate. Many developers of 
free software are heartened and encouraged by the resulting cooperation. 
However, in the case of software used on network servers, this result may 
fail to come about. The GNU General Public License permits making a modified 
version and letting the public access it on a server without ever releasing 
its source code to the public.

The GNU Affero General Public License is designed specifically to ensure 
that, in such cases, the modified source code becomes available to the 
community. It requires the operator of a network server to provide the 
source code of the modified version running there to the users of that server. 
Therefore, public use of a modified version, on a publicly accessible server, 
gives the public access to the source code of the modified version.

An older license, called the Affero General Public License and published by 
Affero, was designed to accomplish similar goals. This is a different license, 
not a version of the Affero GPL, but Affero has released a new version of the 
Affero GPL which permits relicensing under this license.

The precise terms and conditions for copying, distribution and modification follow.

TERMS AND CONDITIONS
0. Definitions.
"This License" refers to version 3 of the GNU Affero General Public License.

"Copyright" also means copyright-like laws that apply to other kinds of works, 
such as semiconductor masks.

"The Program" refers to any copyrightable work licensed under this License. 
Each licensee is addressed as "you". "Licensees" and "recipients" may be 
individuals or organizations.

To "modify" a work means to copy from or adapt all or part of the work in a 
fashion requiring copyright permission, other than the making of an exact copy. 
The resulting work is called a "modified version" of the earlier work or a 
work "based on" the earlier work.

A "covered work" means either the unmodified Program or a work based on the Program.

To "propagate" a work means to do anything with it that, without permission, 
would make you directly or secondarily liable for infringement under applicable 
copyright law, except executing it on a computer or modifying a private copy. 
Propagation includes copying, distribution (with or without modification), 
making available to the public, and in some countries other activities as well.

To "convey" a work means any kind of propagation that enables other parties 
to make or receive copies. Mere interaction with a user through a computer 
network, with no transfer of a copy, is not conveying.

An interactive user interface displays "Appropriate Legal Notices" to the 
extent that it includes a convenient and prominently visible feature that (1) 
displays an appropriate copyright notice, and (2) tells the user that there 
is no warranty for the work (except to the extent that warranties are provided), 
that licensees may convey the work under this License, and how to view a copy 
of this License. If the interface presents a list of user commands or options, 
such as a menu, a prominent item in the list meets this criterion.

1. Source Code.
The "source code" for a work means the preferred form of the work for making 
modifications to it. "Object code" means any non-source form of a work.

A "Standard Interface" means an interface that either is an official standard 
defined by a recognized standards body, or, in the case of interfaces specified 
for a particular programming language, one that is widely used among developers 
working in that language.

The "System Libraries" of an executable work include anything, other than the 
work as a whole, that (a) is included in the normal form of packaging a Major 
Component, but which is not part of that Major Component, and (b) serves only 
to enable use of the work with that Major Component, or to implement a Standard 
Interface for which an implementation is available to the public in source code 
form. A "Major Component", in this context, means a major essential component 
(kernel, window system, and so on) of the specific operating system (if any) on 
which the executable work runs, or a compiler used to produce the work, or an 
object code interpreter used to run it.

The "Corresponding Source" for a work in object code form means all the source 
code needed to generate, install, and (for an executable work) run the object 
code and to modify the work, including scripts to control those activities. However, 
it does not include the work's System Libraries, or general-purpose tools or 
generally available free programs which are used unmodified in performing those 
activities but which are not part of the work. For example, Corresponding Source 
includes interface definition files associated with source files for the work, 
and the source code for shared libraries and dynamically linked subprograms that 
the work is specifically designed to require, such as by intimate data communication 
or control flow between those subprograms and other parts of the work.

The Corresponding Source need not include anything that users can regenerate 
automatically from other parts of the Corresponding Source.

The Corresponding Source for a work in source code form is that same work.

2. Basic Permissions.
All rights granted under this License are granted for the term of copyright on the 
Program, and are irrevocable provided the stated conditions are met. This License 
explicitly affirms your unlimited permission to run the unmodified Program. The output 
from running a covered work is covered by this License only if the output, given its 
content, constitutes a covered work. This License acknowledges your rights of fair 
use or other equivalent, as provided by copyright law.

You may make, run and propagate covered works that you do not convey, without conditions 
so long as your license otherwise remains in force. You may convey covered works to 
others for the sole purpose of having them make modifications exclusively for you, 
or provide you with facilities for running those works, provided that you comply with 
the terms of this License in conveying all material for which you do not control 
copyright. Those thus making or running the covered works for you must do so exclusively 
on your behalf, under your direction and control, on terms that prohibit them from 
making any copies of your copyrighted material outside their relationship with you.

Conveying under any other circumstances is permitted solely under the conditions stated 
below. Sublicensing is not allowed; section 10 makes it unnecessary.

3. Protecting Users' Legal Rights From Anti-Circumvention Law.
No covered work shall be deemed part of an effective technological measure under any 
applicable law fulfilling obligations under article 11 of the WIPO copyright treaty 
adopted on 20 December 1996, or similar laws prohibiting or restricting circumvention 
of such measures.

When you convey a covered work, you waive any legal power to forbid circumvention of 
technological measures to the extent such circumvention is effected by exercising 
rights under this License with respect to the covered work, and you disclaim any 
intention to limit operation or modification of the work as a means of enforcing, 
against the work's users, your or third parties' legal rights to forbid circumvention 
of technological measures.

4. Conveying Verbatim Copies.
You may convey verbatim copies of the Program's source code as you receive it, in any 
medium, provided that you conspicuously and appropriately publish on each copy an 
appropriate copyright notice; keep intact all notices stating that this License and 
any non-permissive terms added in accord with section 7 apply to the code; keep intact 
all notices of the absence of any warranty; and give all recipients a copy of this 
License along with the Program.

You may charge any price or no price for each copy that you convey, and you may offer 
support or warranty protection for a fee.

5. Conveying Modified Source Versions.
You may convey a work based on the Program, or the modifications to produce it from 
the Program, in the form of source code under the terms of section 4, provided that 
you also meet all of these conditions:

a) The work must carry prominent notices stating that you modified it, and giving a 
relevant date.
b) The work must carry prominent notices stating that it is released under this License 
and any conditions added under section 7. This requirement modifies the requirement in 
section 4 to "keep intact all notices".
c) You must license the entire work, as a whole, under this License to anyone who comes 
into possession of a copy. This License will therefore apply, along with any applicable 
section 7 additional terms, to the whole of the work, and all its parts, regardless of 
how they are packaged. This License gives no permission to license the work in any other 
way, but it does not invalidate such permission if you have separately received it.
d) If the work has interactive user interfaces, each must display Appropriate Legal 
Notices; however, if the Program has interactive interfaces that do not display Appropriate 
Legal Notices, your work need not make them do so.
A compilation of a covered work with other separate and independent works, which are not 
by their nature extensions of the covered work, and which are not combined with it such 
as to form a larger program, in or on a volume of a storage or distribution medium, is 
called an "aggregate" if the compilation and its resulting copyright are not used to 
limit the access or legal rights of the compilation's users beyond what the individual 
works permit. Inclusion of a covered work in an aggregate does not cause this License 
to apply to the other parts of the aggregate.

6. Conveying Non-Source Forms.
You may convey a covered work in object code form under the terms of sections 4 and 5, 
provided that you also convey the machine-readable Corresponding Source under the terms 
of this License, in one of these ways:

a) Convey the object code in, or embodied in, a physical product (including a physical 
distribution medium), accompanied by the Corresponding Source fixed on a durable physical 
medium customarily used for software interchange.
b) Convey the object code in, or embodied in, a physical product (including a physical 
distribution medium), accompanied by a written offer, valid for at least three years and 
valid for as long as you offer spare parts or customer support for that product model, 
to give anyone who possesses the object code either (1) a copy of the Corresponding Source 
for all the software in the product that is covered by this License, on a durable physical 
medium customarily used for software interchange, for a price no more than your reasonable 
cost of physically performing this conveying of source, or (2) access to copy the 
Corresponding Source from a network server at no charge.
c) Convey individual copies of the object code with a copy of the written offer to provide 
the Corresponding Source. This alternative is allowed only occasionally and noncommercially, 
and only if you received the object code with such an offer, in accord with subsection 6b.
d) Convey the object code by offering access from a designated place (gratis or for a charge), 
and offer equivalent access to the Corresponding Source in the same way through the same 
place at no further charge. You need not require recipients to copy the Corresponding 
Source along with the object code. If the place to copy the object code is a network server, 
the Corresponding Source may be on a different server (operated by you or a third party) 
that supports equivalent copying facilities, provided you maintain clear directions next 
to the object code saying where to find the Corresponding Source. Regardless of what 
server hosts the Corresponding Source, you remain obligated to ensure that it is available 
for as long as needed to satisfy these requirements.
e) Convey the object code using peer-to-peer transmission, provided you inform other peers 
where the object code and Corresponding Source of the work are being offered to the general 
public at no charge under subsection 6d.
A separable portion of the object code, whose source code is excluded from the Corresponding 
Source as a System Library, need not be included in conveying the object code work.

A "User Product" is either (1) a "consumer product", which means any tangible personal 
property which is normally used for personal, family, or household purposes, or (2) anything 
designed or sold for incorporation into a dwelling. In determining whether a product is a 
consumer product, doubtful cases shall be resolved in favor of coverage. For a particular 
product received by a particular user, "normally used" refers to a typical or common use of 
that class of product, regardless of the status of the particular user or of the way in which 
the particular user actually uses, or expects or is expected to use, the product. A product 
is a consumer product regardless of whether the product has substantial commercial, industrial 
or non-consumer uses, unless such uses represent the only significant mode of use of the 
product.

"Installation Information" for a User Product means any methods, procedures, authorization 
keys, or other information required to install and execute modified versions of a covered 
work in that User Product from a modified version of its Corresponding Source. The information 
must suffice to ensure that the continued functioning of the modified object code is in 
no case prevented or interfered with solely because modification has been made.

If you convey an object code work under this section in, or with, or specifically for use 
in, a User Product, and the conveying occurs as part of a transaction in which the right 
of possession and use of the User Product is transferred to the recipient in perpetuity or 
for a fixed term (regardless of how the transaction is characterized), the Corresponding 
Source conveyed under this section must be accompanied by the Installation Information. 
But this requirement does not apply if neither you nor any third party retains the ability 
to install modified object code on the User Product (for example, the work has been installed 
in ROM).

The requirement to provide Installation Information does not include a requirement to continue 
to provide support service, warranty, or updates for a work that has been modified or 
installed by the recipient, or for the User Product in which it has been modified or installed. 
Access to a network may be denied when the modification itself materially and adversely 
affects the operation of the network or violates the rules and protocols for communication 
across the network.

Corresponding Source conveyed, and Installation Information provided, in accord with this 
section must be in a format that is publicly documented (and with an implementation 
available to the public in source code form), and must require no special password or key 
for unpacking, reading or copying.

7. Additional Terms.
"Additional permissions" are terms that supplement the terms of this License by making 
exceptions from one or more of its conditions. Additional permissions that are applicable 
to the entire Program shall be treated as though they were included in this License, to 
the extent that they are valid under applicable law. If additional permissions apply only 
to part of the Program, that part may be used separately under those permissions, but 
the entire Program remains governed by this License without regard to the additional 
permissions.

When you convey a copy of a covered work, you may at your option remove any additional 
permissions from that copy, or from any part of it. (Additional permissions may be written 
to require their own removal in certain cases when you modify the work.) You may place 
additional permissions on material, added by you to a covered work, for which you have or 
can give appropriate copyright permission.

Notwithstanding any other provision of this License, for material you add to a covered 
work, you may (if authorized by the copyright holders of that material) supplement the 
terms of this License with terms:

a) Disclaiming warranty or limiting liability differently from the terms of sections 15 
and 16 of this License; or
b) Requiring preservation of specified reasonable legal notices or author attributions 
in that material or in the Appropriate Legal Notices displayed by works containing it; 
or
c) Prohibiting misrepresentation of the origin of that material, or requiring that 
modified versions of such material be marked in reasonable ways as different from the 
original version; or
d) Limiting the use for publicity purposes of names of licensors or authors of the 
material; or
e) Declining to grant rights under trademark law for use of some trade names, trademarks, 
or service marks; or
f) Requiring indemnification of licensors and authors of that material by anyone who 
conveys the material (or modified versions of it) with contractual assumptions of 
liability to the recipient, for any liability that these contractual assumptions 
directly impose on those licensors and authors.
All other non-permissive additional terms are considered "further restrictions" 
within the meaning of section 10. If the Program as you received it, or any part 
of it, contains a notice stating that it is governed by this License along with a 
term that is a further restriction, you may remove that term. If a license document
contains a further restriction but permits relicensing or conveying under this License, 
you may add to a covered work material governed by the terms of that license document, 
provided that the further restriction does not survive such relicensing or conveying.

If you add terms to a covered work in accord with this section, you must place, in 
the relevant source files, a statement of the additional terms that apply to those files, 
or a notice indicating where to find the applicable terms.

Additional terms, permissive or non-permissive, may be stated in the form of a 
separately written license, or stated as exceptions; the above requirements apply 
either way.

8. Termination.
You may not propagate or modify a covered work except as expressly provided under 
this License. Any attempt otherwise to propagate or modify it is void, and will 
automatically terminate your rights under this License (including any patent 
licenses granted under the third paragraph of section 11).

However, if you cease all violation of this License, then your license from a 
particular copyright holder is reinstated (a) provisionally, unless and until the 
copyright holder explicitly and finally terminates your license, and (b) permanently, 
if the copyright holder fails to notify you of the violation by some reasonable 
means prior to 60 days after the cessation.

Moreover, your license from a particular copyright holder is reinstated permanently 
if the copyright holder notifies you of the violation by some reasonable means, 
this is the first time you have received notice of violation of this License (for 
any work) from that copyright holder, and you cure the violation prior to 30 days 
after your receipt of the notice.

Termination of your rights under this section does not terminate the licenses of 
parties who have received copies or rights from you under this License. If your 
rights have been terminated and not permanently reinstated, you do not qualify 
to receive new licenses for the same material under section 10.

9. Acceptance Not Required for Having Copies.
You are not required to accept this License in order to receive or run a copy of 
the Program. Ancillary propagation of a covered work occurring solely as a 
consequence of using peer-to-peer transmission to receive a copy likewise does not 
require acceptance. However, nothing other than this License grants you permission 
to propagate or modify any covered work. These actions infringe copyright if you 
do not accept this License. Therefore, by modifying or propagating a covered work, 
you indicate your acceptance of this License to do so.

10. Automatic Licensing of Downstream Recipients.
Each time you convey a covered work, the recipient automatically receives a license 
from the original licensors, to run, modify and propagate that work, subject to 
this License. You are not responsible for enforcing compliance by third parties 
with this License.

An "entity transaction" is a transaction transferring control of an organization, 
or substantially all assets of one, or subdividing an organization, or merging 
organizations. If propagation of a covered work results from an entity transaction, 
each party to that transaction who receives a copy of the work also receives 
whatever licenses to the work the party's predecessor in interest had or could 
give under the previous paragraph, plus a right to possession of the Corresponding 
Source of the work from the predecessor in interest, if the predecessor has it 
or can get it with reasonable efforts.

You may not impose any further restrictions on the exercise of the rights granted 
or affirmed under this License. For example, you may not impose a license fee, 
royalty, or other charge for exercise of rights granted under this License, 
and you may not initiate litigation (including a cross-claim or counterclaim 
in a lawsuit) alleging that any patent claim is infringed by making, using, 
selling, offering for sale, or importing the Program or any portion of it.

11. Patents.
A "contributor" is a copyright holder who authorizes use under this License of 
the Program or a work on which the Program is based. The work thus licensed is 
called the contributor's "contributor version".

A contributor's "essential patent claims" are all patent claims owned or 
controlled by the contributor, whether already acquired or hereafter acquired, 
that would be infringed by some manner, permitted by this License, of making, 
using, or selling its contributor version, but do not include claims that would 
be infringed only as a consequence of further modification of the contributor 
version. For purposes of this definition, "control" includes the right to grant 
patent sublicenses in a manner consistent with the requirements of this License.

Each contributor grants you a non-exclusive, worldwide, royalty-free patent 
license under the contributor's essential patent claims, to make, use, sell, 
offer for sale, import and otherwise run, modify and propagate the contents 
of its contributor version.

In the following three paragraphs, a "patent license" is any express agreement 
or commitment, however denominated, not to enforce a patent (such as an express 
permission to practice a patent or covenant not to sue for patent infringement). 
To "grant" such a patent license to a party means to make such an agreement or 
commitment not to enforce a patent against the party.

If you convey a covered work, knowingly relying on a patent license, and the 
Corresponding Source of the work is not available for anyone to copy, free of 
charge and under the terms of this License, through a publicly available network 
server or other readily accessible means, then you must either (1) cause the 
Corresponding Source to be so available, or (2) arrange to deprive yourself 
of the benefit of the patent license for this particular work, or (3) arrange, 
in a manner consistent with the requirements of this License, to extend the 
patent license to downstream recipients. "Knowingly relying" means you have 
actual knowledge that, but for the patent license, your conveying the covered 
work in a country, or your recipient's use of the covered work in a country, 
would infringe one or more identifiable patents in that country that you have 
reason to believe are valid.

If, pursuant to or in connection with a single transaction or arrangement, you 
convey, or propagate by procuring conveyance of, a covered work, and grant a 
patent license to some of the parties receiving the covered work authorizing 
them to use, propagate, modify or convey a specific copy of the covered work, 
then the patent license you grant is automatically extended to all recipients 
of the covered work and works based on it.

A patent license is "discriminatory" if it does not include within the scope 
of its coverage, prohibits the exercise of, or is conditioned on the non-exercise 
of one or more of the rights that are specifically granted under this License. 
You may not convey a covered work if you are a party to an arrangement with a 
third party that is in the business of distributing software, under which you 
make payment to the third party based on the extent of your activity of 
conveying the work, and under which the third party grants, to any of the 
parties who would receive the covered work from you, a discriminatory patent 
license (a) in connection with copies of the covered work conveyed by you 
(or copies made from those copies), or (b) primarily for and in connection with 
specific products or compilations that contain the covered work, unless you 
entered into that arrangement, or that patent license was granted, prior to 28 March 2007.

Nothing in this License shall be construed as excluding or limiting any implied 
license or other defenses to infringement that may otherwise be available to you 
under applicable patent law.

12. No Surrender of Others' Freedom.
If conditions are imposed on you (whether by court order, agreement or otherwise) 
that contradict the conditions of this License, they do not excuse you from the 
conditions of this License. If you cannot convey a covered work so as to satisfy 
simultaneously your obligations under this License and any other pertinent obligations, 
then as a consequence you may not convey it at all. For example, if you agree to 
terms that obligate you to collect a royalty for further conveying from those to 
whom you convey the Program, the only way you could satisfy both those terms and 
this License would be to refrain entirely from conveying the Program.

13. Remote Network Interaction; Use with the GNU General Public License.
Notwithstanding any other provision of this License, if you modify the Program, 
your modified version must prominently offer all users interacting with it remotely 
through a computer network (if your version supports such interaction) an 
opportunity to receive the Corresponding Source of your version by providing 
access to the Corresponding Source from a network server at no charge, through 
some standard or customary means of facilitating copying of software. This 
Corresponding Source shall include the Corresponding Source for any work covered 
by version 3 of the GNU General Public License that is incorporated pursuant to 
the following paragraph.

Notwithstanding any other provision of this License, you have permission to link 
or combine any covered work with a work licensed under version 3 of the 
GNU General Public License into a single combined work, and to convey the 
resulting work. The terms of this License will continue to apply to the part 
which is the covered work, but the work with which it is combined will remain 
governed by version 3 of the GNU General Public License.

14. Revised Versions of this License.
The Free Software Foundation may publish revised and/or new versions of the 
GNU Affero General Public License from time to time. Such new versions will 
be similar in spirit to the present version, but may differ in detail to address 
new problems or concerns.

Each version is given a distinguishing version number. If the Program specifies 
that a certain numbered version of the GNU Affero General Public License "or any 
later version" applies to it, you have the option of following the terms and 
conditions either of that numbered version or of any later version published by 
the Free Software Foundation. If the Program does not specify a version number 
of the GNU Affero General Public License, you may choose any version ever 
published by the Free Software Foundation.

If the Program specifies that a proxy can decide which future versions of the 
GNU Affero General Public License can be used, that proxy's public statement of 
acceptance of a version permanently authorizes you to choose that version for 
the Program.

Later license versions may give you additional or different permissions. 
However, no additional obligations are imposed on any author or copyright 
holder as a result of your choosing to follow a later version.

15. Disclaimer of Warranty.
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE 
LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER 
PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED 
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND 
PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU 
ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.

16. Limitation of Liability.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY 
COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM AS 
PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, 
INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE 
THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED 
INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE 
PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER 
PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided above 
cannot be given local legal effect according to their terms, reviewing courts 
shall apply local law that most closely approximates an absolute waiver of 
all civil liability in connection with the Program, unless a warranty or 
assumption of liability accompanies a copy of the Program in return for a fee.

END OF TERMS AND CONDITIONS