--- /dev/null
+GNU AFFERO GENERAL PUBLIC LICENSE
+
+Version 3, 19 November 2007
+
+Copyright © 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
+
+How to Apply These Terms to Your New Programs
+
+If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it free
+software which everyone can redistribute and change under these terms.
+
+To do so, attach the following notices to the program. It is safest to
+attach them to the start of each source file to most effectively state the
+exclusion of warranty; and each file should have at least the "copyright"
+line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Affero General Public License as
+ published by the Free Software Foundation, either version 3 of the
+ License, or (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to get
+its source. For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive of
+the code. There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for the
+specific requirements.
+
+You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary. For
+more information on this, and how to apply and follow the GNU AGPL, see <
+http://www.gnu.org/licenses/>.
+
#!/usr/bin/perl -w
+use 5.20.0;
use strict;
+use utf8;
+use warnings qw(all);
use File::Basename;
+use File::LibMagic;
+use Getopt::Long;
use PDF::API2;
use YAML;
-my $metafile = $ARGV[0];
+my $help = '';
+my $genmeta = '';
+my $preview = '';
+my $crop = '';
+my $stitch = '';
-die "Please specify a .pdf.stitch to process!\n" unless defined $metafile;
-die "Can't open $metafile!\n" unless -r $metafile;
+Getopt::Long::Configure("bundling");
-my $meta = YAML::LoadFile($metafile);
-my $width = $meta->{width} * $meta->{columns};
-my $height = $meta->{height} * $meta->{rows};
+my $usage = <<ENDUSAGE;
+pdfstitch - Copyright (C) 2017 by Jakob Haufe <sur5r\@sur5r.net>
-my $inpdf = PDF::API2->open($meta->{input});
-my $outpdf = PDF::API2->new();
+Usage: $0 [-hgpcs] [--genmeta] [--preview] [--crop] [--stitch] {PDF file|.stitch file}
-my $page = $outpdf->page();
+ -h, --help Display this message
+ -g, --genmeta Generate .stitch file for stitching based on given PDF
+ (default when called with a PDF)
+ -p, --preview Generate preview PDF containing overlays to analyze
+ cropping
+ -c, --crop Generate cropped PDF according to given .stitch
+ -s, --stitch Generate stitched PDF
+ (default when called with a .stitch file)
-$page->mediabox($width + 100, $height + 100);
+pdfstitch is free software under the GNU AGPL version 3. See LICENSE for details.
+ENDUSAGE
-my $content = $page->gfx();
-my $column = 1;
-my $row = 1;
+GetOptions
+(
+ 'h|help' => \$help,
+ 'g|genmeta' => \$genmeta,
+ 'p|preview' => \$preview,
+ 'c|crop' => \$crop,
+ 's|stitch' => \$stitch
+) or die "Call with --help to see available options.\n";
-foreach my $nr (@{$meta->{pageorder}})
+die $usage if $help;
+
+die "--genmeta can not be combined with other actions!\n" if($genmeta and ($preview or $crop or $stitch));
+
+die "No input file specified!\n" unless $ARGV[0];
+
+my $infile = $ARGV[0];
+
+die "$infile does not exist!\n" unless -e $infile;
+die "$infile is not readable!\n" unless -r $infile;
+
+if(not ($genmeta or $preview or $crop or $stitch))
{
- if($nr ne "blank")
+ my $magic = File::LibMagic->new();
+
+ my $info = $magic->info_from_filename($infile);
+ if($info->{mime_type} eq "application/pdf")
{
- my $xo = $outpdf->importPageIntoForm($inpdf, $nr);
-
- my ($llx, $lly, $urx, $ury);
- $llx = $meta->{x} + $meta->{pageoffsets}->{$nr}->{x};
- $lly = $meta->{y} + $meta->{pageoffsets}->{$nr}->{y};
- $urx = $llx + $meta->{width};
- $ury = $lly + $meta->{height};
- $xo->bbox($llx, $lly, $urx, $ury);
-
- my $xpos = ($column - 1) * $meta->{width};
- my $ypos = $height - ($row * $meta->{height});
- $content->formimage($xo, $xpos, $ypos);
+ print "Detected PDF, turning on --genmeta\n";
+ $genmeta = 1;
}
- $column++;
- if($column > $meta->{columns})
+ elsif ($info->{mime_type} eq "text/plain")
+ {
+ YAML::LoadFile($infile) or die "Failed to parse $infile as YAML!\n";
+ print "Detected YAML, turning on --stitch\n";
+ $stitch = 1;
+ }
+ else
+ {
+ die "$infile has unsupported type: $info->{mime_type}\n";
+ }
+}
+
+if($genmeta)
+{
+ print "Generating meta file for " . basename($infile) . ".\n";
+ my $outfile = basename($infile) . ".stitch";
+
+ die "$outfile exists, aborting!\n" if -e $outfile;
+
+
+ my $pdf = PDF::API2->open($infile);
+
+ my $page = $pdf->openpage(1);
+ my ($llx, $lly, $urx, $ury) = $page->get_mediabox;
+
+ my $meta = {
+ input => basename($infile),
+ x => (($urx - $llx)*0.1)/2,
+ y => (($ury - $lly)*0.1)/2,
+ width => ($urx - $llx)*0.9,
+ height => ($ury - $lly)*0.9,
+ columns => int(sqrt($pdf->pages)),
+ rows => int(sqrt($pdf->pages)),
+ pageorder => [(1 .. $pdf->pages)],
+ };
+
+ foreach $page (1..$pdf->pages)
{
- $row++;
- $column=1;
+ $meta->{pageoffsets}->{$page}->{x} = 0;
+ $meta->{pageoffsets}->{$page}->{y} = 0;
}
+ YAML::Bless($meta)->keys(['input','x','y','width','height','columns','rows', 'pageorder','pageoffsets']);
+ YAML::DumpFile($outfile,$meta);
}
+else
+{
+ my $meta = YAML::LoadFile($infile);
+ my $inpdf = PDF::API2->open($meta->{input});
-$outpdf->saveas(basename($metafile, ('.pdf.stitch','.stitch')) . '-stitched.pdf');
+ if($preview or $crop)
+ {
+ my $previewpdf = PDF::API2->new() if $preview;
+ my $croppedpdf = PDF::API2->new() if $crop;
+ my $transparency;
+
+ if($preview)
+ {
+ $transparency = $previewpdf->egstate();
+ $transparency->transparency(0.8);
+ }
+
+ foreach my $pagenr (@{$meta->{pageorder}})
+ {
+ next if $pagenr eq "blank";
+
+ my $llx = $meta->{x} + $meta->{pageoffsets}->{$pagenr}->{x};
+ my $lly = $meta->{y} + $meta->{pageoffsets}->{$pagenr}->{x};
+ my $urx = $meta->{width};
+ my $ury = $meta->{height};
+
+ if($preview)
+ {
+ my $previewpage = $previewpdf->import_page($inpdf, $pagenr, 0);
+ my $previewcontent = $previewpage->gfx();
+ $previewcontent->egstate($transparency);
+ $previewcontent->rect($llx, $lly, $urx, $ury);
+ $previewcontent->fillcolor('%F000');
+ $previewcontent->fill();
+ }
+ if($crop)
+ {
+ my $croppage = $croppedpdf->import_page($inpdf, $pagenr, 0);
+ $croppage->cropbox($llx, $lly, $llx + $urx, $lly + $ury);
+ }
+ }
+
+ $previewpdf->saveas(basename($infile, ('.pdf.stitch', '.stitch')) . '-preview.pdf') if $preview;
+ $croppedpdf->saveas(basename($infile, ('.pdf.stitch', '.stitch')) . '-cropped.pdf') if $crop;
+ }
+
+ if($stitch)
+ {
+ my $width = $meta->{width} * $meta->{columns};
+ my $height = $meta->{height} * $meta->{rows};
+
+ my $stitchedpdf = PDF::API2->new();
+
+ my $page = $stitchedpdf->page();
+ $page->mediabox($width + 100, $height + 100);
+
+ my $content = $page->gfx();
+ my $column = 1;
+ my $row = 1;
+
+ foreach my $pagenr (@{$meta->{pageorder}})
+ {
+ if($pagenr ne "blank")
+ {
+ my $xo = $stitchedpdf->importPageIntoForm($inpdf, $pagenr);
+
+ my $llx = $meta->{x} + $meta->{pageoffsets}->{$pagenr}->{x};
+ my $lly = $meta->{y} + $meta->{pageoffsets}->{$pagenr}->{y};
+ my $urx = $llx + $meta->{width};
+ my $ury = $lly + $meta->{height};
+
+ $xo->bbox($llx, $lly, $urx, $ury);
+
+ my $xpos = ($column - 1) * $meta->{width};
+ my $ypos = $height - ($row * $meta->{height});
+ $content->formimage($xo, $xpos, $ypos);
+ }
+ $column++;
+ if($column > $meta->{columns})
+ {
+ $row++;
+ $column=1;
+ }
+ }
+
+ $stitchedpdf->saveas(basename($infile, ('.pdf.stitch','.stitch')) . '-stitched.pdf');
+ }
+}
projects / pdfstitch / commitdiff