added the ability to add safe html tags to input (i.e., images)

[selectricity-live] / COPYING

                     AFFERO GENERAL PUBLIC LICENSE
                         Version 1, March 2002

                      Copyright © 2002 Affero Inc.
       510 Third Street - Suite 225, San Francisco, CA 94107, USA

This license is a modified version of the GNU General Public License
copyright (C) 1989, 1991 Free Software Foundation, Inc. made with their
permission. Section 2(d) has been added to cover use of software over a
computer network.

Everyone is permitted to copy and distribute verbatim copies of this
license document, but changing it is not allowed.

                                Preamble

The licenses for most software are designed to take away your freedom to
share and change it. By contrast, the Affero General Public License is
intended to guarantee your freedom to share and change free software--to
make sure the software is free for all its users. This Public License
applies to most of Affero's software and to any other program whose
authors commit to using it. (Some other Affero software is covered by
the GNU Library General Public License instead.) You can apply it to
your programs, too.

When we speak of free software, we are referring to freedom, not price.
This General Public License is designed to make sure that you have the
freedom to distribute copies of free software (and charge for this
service 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.

To protect your rights, we need to make restrictions that forbid anyone
to deny you these rights or to ask you to surrender the rights. These
restrictions translate to certain responsibilities for you if you
distribute copies of the software, or if you modify it.

For example, if you distribute copies of such a program, whether gratis
or for a fee, you must give the recipients all the rights that you have.
You must make sure that they, too, receive or can get the source code.
And you must show them these terms so they know their rights.

We protect your rights with two steps: (1) copyright the software, and
(2) offer you this license which gives you legal permission to copy,
distribute and/or modify the software.

Also, for each author's protection and ours, we want to make certain
that everyone understands that there is no warranty for this free
software. If the software is modified by someone else and passed on, we
want its recipients to know that what they have is not the original, so
that any problems introduced by others will not reflect on the original
authors' reputations.

Finally, any free program is threatened constantly by software patents.
We wish to avoid the danger that redistributors of a free program will
individually obtain patent licenses, in effect making the program
proprietary. To prevent this, we have made it clear that any patent must
be licensed for everyone's free use or not licensed at all.

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

    TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

0. This License applies to any program or other work which contains a
   notice placed by the copyright holder saying it may be distributed
   under the terms of this Affero General Public License. The "Program",
   below, refers to any such program or work, and a "work based on the
   Program" means either the Program or any derivative work under
   copyright law: that is to say, a work containing the Program or a
   portion of it, either verbatim or with modifications and/or
   translated into another language. (Hereinafter, translation is
   included without limitation in the term "modification".) Each
   licensee is addressed as "you".

Activities other than copying, distribution and modification are not
covered by this License; they are outside its scope. The act of running
the Program is not restricted, and the output from the Program is
covered only if its contents constitute a work based on the Program
(independent of having been made by running the Program). Whether that
is true depends on what the Program does.

1. You may copy and distribute 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 and disclaimer of warranty; keep intact all the
   notices that refer to this License and to the absence of any
   warranty; and give any other recipients of the Program a copy of this
   License along with the Program.

You may charge a fee for the physical act of transferring a copy, and
you may at your option offer warranty protection in exchange for a fee.

2. You may modify your copy or copies of the Program or any portion of
   it, thus forming a work based on the Program, and copy and distribute
   such modifications or work under the terms of Section 1 above,
   provided that you also meet all of these conditions:

   a) You must cause the modified files to carry prominent notices
      stating that you changed the files and the date of any change.

   b) You must cause any work that you distribute or publish, that in
      whole or in part contains or is derived from the Program or any
      part thereof, to be licensed as a whole at no charge to all third
      parties under the terms of this License.

   c) If the modified program normally reads commands interactively when
      run, you must cause it, when started running for such interactive
      use in the most ordinary way, to print or display an announcement
      including an appropriate copyright notice and a notice that there
      is no warranty (or else, saying that you provide a warranty) and
      that users may redistribute the program under these conditions,
      and telling the user how to view a copy of this License.
      (Exception: if the Program itself is interactive but does not
      normally print such an announcement, your work based on the
      Program is not required to print an announcement.)

   d) If the Program as you received it is intended to interact with
      users through a computer network and if, in the version you
      received, any user interacting with the Program was given the
      opportunity to request transmission to that user of the Program's
      complete source code, you must not remove that facility from your
      modified version of the Program or work based on the Program, and
      must offer an equivalent opportunity for all users interacting
      with your Program through a computer network to request immediate
      transmission by HTTP of the complete source code of your modified
      version or other derivative work.

These requirements apply to the modified work as a whole. If
identifiable sections of that work are not derived from the Program, and
can be reasonably considered independent and separate works in
themselves, then this License, and its terms, do not apply to those
sections when you distribute them as separate works. But when you
distribute the same sections as part of a whole which is a work based on
the Program, the distribution of the whole must be on the terms of this
License, whose permissions for other licensees extend to the entire
whole, and thus to each and every part regardless of who wrote it.

Thus, it is not the intent of this section to claim rights or contest
your rights to work written entirely by you; rather, the intent is to
exercise the right to control the distribution of derivative or
collective works based on the Program.

In addition, mere aggregation of another work not based on the Program
with the Program (or with a work based on the Program) on a volume of a
storage or distribution medium does not bring the other work under the
scope of this License.

3. You may copy and distribute the Program (or a work based on it, under
   Section 2) in object code or executable form under the terms of
   Sections 1 and 2 above provided that you also do one of the
   following:

   a) Accompany it with the complete corresponding machine-readable
      source code, which must be distributed under the terms of Sections
      1 and 2 above on a medium customarily used for softpware interchange; or,

   b) Accompany it with a written offer, valid for at least three years,
      to give any third party, for a charge no more than your cost of
      physically performing source distribution, a complete
      machine-readable copy of the corresponding source code, to be
      distributed under the terms of Sections 1 and 2 above on a medium
      customarily used for software interchange; or,

   c) Accompany it with the information you received as to the offer to
      distribute corresponding source code. (This alternative is allowed
      only for noncommercial distribution and only if you received the
      program in object code or executable form with such an offer, in
      accord with Subsection b above.)

The source code for a work means the preferred form of the work for
making modifications to it. For an executable work, complete source code
means all the source code for all modules it contains, plus any
associated interface definition files, plus the scripts used to control
compilation and installation of the executable. However, as a special
exception, the source code distributed need not include anything that is
normally distributed (in either source or binary form) with the major
components (compiler, kernel, and so on) of the operating system on
which the executable runs, unless that component itself accompanies the
executable.

If distribution of executable or object code is made by offering access
to copy from a designated place, then offering equivalent access to copy
the source code from the same place counts as distribution of the source
code, even though third parties are not compelled to copy the source
along with the object code.

4. You may not copy, modify, sublicense, or distribute the Program
   except as expressly provided under this License. Any attempt
   otherwise to copy, modify, sublicense or distribute the Program is
   void, and will automatically terminate your rights under this
   License. However, parties who have received copies, or rights, from
   you under this License will not have their licenses terminated so
   long as such parties remain in full compliance.

5. You are not required to accept this License, since you have not
   signed it. However, nothing else grants you permission to modify or
   distribute the Program or its derivative works. These actions are
   prohibited by law if you do not accept this License. Therefore, by
   modifying or distributing the Program (or any work based on the
   Program), you indicate your acceptance of this License to do so, and
   all its terms and conditions for copying, distributing or modifying
   the Program or works based on it.

6. Each time you redistribute the Program (or any work based on the
   Program), the recipient automatically receives a license from the
   original licensor to copy, distribute or modify the Program subject
   to these terms and conditions. You may not impose any further
   restrictions on the recipients' exercise of the rights granted
   herein. You are not responsible for enforcing compliance by third
   parties to this License.

7. If, as a consequence of a court judgment or allegation of patent
   infringement or for any other reason (not limited to patent issues),
   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
   distribute so as to satisfy simultaneously your obligations under
   this License and any other pertinent obligations, then as a
   consequence you may not distribute the Program at all. For example,
   if a patent license would not permit royalty-free redistribution of
   the Program by all those who receive copies directly or indirectly
   through you, then the only way you could satisfy both it and this
   License would be to refrain entirely from distribution of the
   Program.

If any portion of this section is held invalid or unenforceable under
any particular circumstance, the balance of the section is intended to
apply and the section as a whole is intended to apply in other
circumstances.

It is not the purpose of this section to induce you to infringe any
patents or other property right claims or to contest validity of any
such claims; this section has the sole purpose of protecting the
integrity of the free software distribution system, which is implemented
by public license practices. Many people have made generous
contributions to the wide range of software distributed through that
system in reliance on consistent application of that system; it is up to
the author/donor to decide if he or she is willing to distribute
software through any other system and a licensee cannot impose that
choice.

This section is intended to make thoroughly clear what is believed to be
a consequence of the rest of this License.

8. If the distribution and/or use of the Program is restricted in
   certain countries either by patents or by copyrighted interfaces, the
   original copyright holder who places the Program under this License
   may add an explicit geographical distribution limitation excluding
   those countries, so that distribution is permitted only in or among
   countries not thus excluded. In such case, this License incorporates
   the limitation as if written in the body of this License.

9. Affero Inc. may publish revised and/or new versions of the 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 a version number of this License which applies to it and "any
later version", you have the option of following the terms and
conditions either of that version or of any later version published by
Affero, Inc. If the Program does not specify a version number of this
License, you may choose any version ever published by Affero, Inc.

You may also choose to redistribute modified versions of this program
under any version of the Free Software Foundation's GNU General Public
License version 3 or higher, so long as that version of the GNU GPL
includes terms and conditions substantially equivalent to those of this
license.

10. If you wish to incorporate parts of the Program into other free
    programs whose distribution conditions are different, write to the
    author to ask for permission. For software which is copyrighted by
    Affero, Inc., write to us; we sometimes make exceptions for this.
    Our decision will be guided by the two goals of preserving the free
    status of all derivatives of our free software and of promoting the
    sharing and reuse of software generally.

                              NO WARRANTY

11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, 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.

12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
    WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY
    AND/OR REDISTRIBUTE 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.