moodle_mod_colab_v6_

LICENSE.md

@@ -0,0 +1,596 @@
+GNU GENERAL PUBLIC LICENSE
+==========================
+
+Version 3, 29 June 2007
+
+Copyright &copy; 2007 Free Software Foundation, Inc. &lt;<http://fsf.org/>&gt;
+
+Everyone is permitted to copy and distribute verbatim copies of this license
+document, but changing it is not allowed.
+
+## Preamble
+
+The GNU General Public License is a free, copyleft license for software and other
+kinds of works.
+
+The licenses for most software and other practical works are designed to take away
+your freedom to share and change the works. By contrast, the GNU General Public
+License is 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. We, the Free
+Software Foundation, use the GNU General Public License for most of our software; it
+applies also to any other work released this way by its authors. You can apply it to
+your programs, too.
+
+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.
+
+To protect your rights, we need to prevent others from denying you these rights or
+asking you to surrender the rights. Therefore, you have certain responsibilities if
+you distribute copies of the software, or if you modify it: responsibilities to
+respect the freedom of others.
+
+For example, if you distribute copies of such a program, whether gratis or for a fee,
+you must pass on to the recipients the same freedoms that you received. 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.
+
+Developers that use the GNU GPL protect your rights with two steps: (1) assert
+copyright on the software, and (2) offer you this License giving you legal permission
+to copy, distribute and/or modify it.
+
+For the developers' and authors' protection, the GPL clearly explains that there is
+no warranty for this free software. For both users' and authors' sake, the GPL
+requires that modified versions be marked as changed, so that their problems will not
+be attributed erroneously to authors of previous versions.
+
+Some devices are designed to deny users access to install or run modified versions of
+the software inside them, although the manufacturer can do so. This is fundamentally
+incompatible with the aim of protecting users' freedom to change the software. The
+systematic pattern of such abuse occurs in the area of products for individuals to
+use, which is precisely where it is most unacceptable. Therefore, we have designed
+this version of the GPL to prohibit the practice for those products. If such problems
+arise substantially in other domains, we stand ready to extend this provision to
+those domains in future versions of the GPL, as needed to protect the freedom of
+users.
+
+Finally, every program is threatened constantly by software patents. States should
+not allow patents to restrict development and use of software on general-purpose
+computers, but in those that do, we wish to avoid the special danger that patents
+applied to a free program could make it effectively proprietary. To prevent this, the
+GPL assures that patents cannot be used to render the program non-free.
+
+The precise terms and conditions for copying, distribution and modification follow.
+
+## TERMS AND CONDITIONS
+
+### 0. Definitions.
+
+&ldquo;This License&rdquo; refers to version 3 of the GNU General Public License.
+
+&ldquo;Copyright&rdquo; also means copyright-like laws that apply to other kinds of
+works, such as semiconductor masks.
+
+&ldquo;The Program&rdquo; refers to any copyrightable work licensed under this
+License. Each licensee is addressed as &ldquo;you&rdquo;. &ldquo;Licensees&rdquo; and
+&ldquo;recipients&rdquo; may be individuals or organizations.
+
+To &ldquo;modify&rdquo; 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 &ldquo;modified version&rdquo; of the earlier work or a
+work &ldquo;based on&rdquo; the earlier work.
+
+A &ldquo;covered work&rdquo; means either the unmodified Program or a work based on
+the Program.
+
+To &ldquo;propagate&rdquo; 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 &ldquo;convey&rdquo; 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 &ldquo;Appropriate Legal Notices&rdquo; 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 &ldquo;source code&rdquo; for a work means the preferred form of the work for
+making modifications to it. &ldquo;Object code&rdquo; means any non-source form of a
+work.
+
+A &ldquo;Standard Interface&rdquo; 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 &ldquo;System Libraries&rdquo; 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 &ldquo;Major Component&rdquo;, 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 &ldquo;Corresponding Source&rdquo; 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 &ldquo;keep intact all notices&rdquo;.
+* **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 &ldquo;aggregate&rdquo; 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 &ldquo;User Product&rdquo; is either (1) a &ldquo;consumer product&rdquo;, 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, &ldquo;normally used&rdquo; 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.
+
+&ldquo;Installation Information&rdquo; 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.
+
+&ldquo;Additional permissions&rdquo; 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 &ldquo;further
+restrictions&rdquo; 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 &ldquo;entity transaction&rdquo; 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 &ldquo;contributor&rdquo; 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 &ldquo;contributor version&rdquo;.
+
+A contributor's &ldquo;essential patent claims&rdquo; 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, &ldquo;control&rdquo; 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 &ldquo;patent license&rdquo; 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 &ldquo;grant&rdquo; 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. &ldquo;Knowingly relying&rdquo; 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 &ldquo;discriminatory&rdquo; 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. Use with the GNU Affero General Public License.
+
+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 Affero
+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 special requirements of the GNU Affero General Public License, section
+13, concerning interaction through a network will apply to the combination as such.
+
+### 14. Revised Versions of this License.
+
+The Free Software Foundation may publish revised and/or new versions of the GNU
+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 General Public License &ldquo;or any later
+version&rdquo; 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
+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
+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 &ldquo;AS IS&rdquo; 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 &ldquo;copyright&rdquo; 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 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 General Public License for more details.
+
+    You should have received a copy of the GNU 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 the program does terminal interaction, make it output a short notice like this
+when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type 'show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type 'show c' for details.
+
+The hypothetical commands 'show w' and 'show c' should show the appropriate parts of
+the General Public License. Of course, your program's commands might be different;
+for a GUI interface, you would use an &ldquo;about box&rdquo;.
+
+You should also get your employer (if you work as a programmer) or school, if any, to
+sign a &ldquo;copyright disclaimer&rdquo; for the program, if necessary. For more
+information on this, and how to apply and follow the GNU GPL, see
+&lt;<http://www.gnu.org/licenses/>&gt;.
+
+The GNU General Public License does not permit incorporating your program into
+proprietary programs. If your program is a subroutine library, you may consider it
+more useful to permit linking proprietary applications with the library. If this is
+what you want to do, use the GNU Lesser General Public License instead of this
+License. But first, please read
+&lt;<http://www.gnu.org/philosophy/why-not-lgpl.html>&gt;.

README.md

@@ -0,0 +1,21 @@
+# Module colab #
+
+TODO Describe the plugin shortly here.
+
+TODO Provide more detailed description here.
+
+## License ##
+
+2020 Your Name <you@example.com>
+
+This program is free software: you can redistribute it and/or modify it under
+the terms of the GNU 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program.  If not, see <http://www.gnu.org/licenses/>.

classes/event/course_module_viewed.php

@@ -0,0 +1,43 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle 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 General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+/**
+ * Defines the view event.
+ *
+ * @package    mod_colab
+ * @copyright  2020 Your Name <you@example.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace mod_colab\event;
+defined('MOODLE_INTERNAL') || die();
+/**
+ * The mod_newmodule instance viewed event class
+ *
+ * If the view mode needs to be stored as well, you may need to
+ * override methods get_url() and get_legacy_log_data(), too.
+ *
+ * @package    mod_colab
+ * @copyright  2020 Your Name <you@example.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class course_module_viewed extends \core\event\course_module_viewed {
+    /**
+     * Initialize the event
+     */
+    protected function init() {
+        $this->data['objecttable'] = 'colab';
+        parent::init();
+    }
+}

cli/sample_cli.php

@@ -0,0 +1,56 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle 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 General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * CLI script for colab.
+ *
+ * @package     colab
+ * @subpackage  cli
+ * @copyright   2020 Your Name <you@example.com>
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+define('CLI_SCRIPT', true);
+
+require(__DIR__.'/../../../config.php');
+require_once($CFG->libdir.'/clilib.php');
+
+// Get the cli options.
+list($options, $unrecognized) = cli_get_params(array(
+    'help' => false
+),
+array(
+    'h' => 'help'
+));
+
+$help =
+"
+Help message for colab cli script.
+
+Please include a list of options and associated actions.
+
+Please include an example of usage.
+";
+
+if ($unrecognized) {
+    $unrecognized = implode("\n\t", $unrecognized);
+    cli_error(get_string('cliunknownoption', 'admin', $unrecognized);
+}
+
+if ($options['help']) {
+    cli_writeln($help);
+    die();
+}

db/access.php

@@ -0,0 +1,39 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle 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 General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Plugin capabilities are defined here.
+ *
+ * @package     colab
+ * @category    access
+ * @copyright   2020 Your Name <you@example.com>
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+$capabilities = [
+
+    'mod/colab:addinstance' => [
+        'riskbitmask' => RISK_XSS,
+        'captype' => 'write',
+        'contextlevel' => CONTEXT_COURSE,
+        'archetypes' => [
+            'editingteacher' => CAP_ALLOW,
+        ],
+        'clonepermissionsfrom' => 'moodle/course:manageactivities',
+    ],
+];

db/install.php

@@ -0,0 +1,34 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle 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 General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Code to be executed after the plugin's database scheme has been installed is defined here.
+ *
+ * @package     colab
+ * @category    upgrade
+ * @copyright   2020 Your Name <you@example.com>
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Custom code to be run on installing the plugin.
+ */
+function xmldb_colab_install() {
+
+    return true;
+}

db/install.xml

@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<XMLDB PATH="mod/colab/db" VERSION="20101203" COMMENT="XMLDB file for Moodle mod/colab"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:noNamespaceSchemaLocation="../../../lib/xmldb/xmldb.xsd"
+>
+  <TABLES>
+    <TABLE NAME="colab" COMMENT="Default comment for colab, please edit me">
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true"/>
+        <FIELD NAME="course" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="false" COMMENT="Course newmodule activity belongs to"/>
+        <FIELD NAME="name" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false" COMMENT="name field for moodle instances"/>
+        <FIELD NAME="intro" TYPE="text" NOTNULL="true" SEQUENCE="false" COMMENT="General introduction of the newmodule activity"/>
+        <FIELD NAME="introformat" TYPE="int" LENGTH="4" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" COMMENT="Format of the intro field (MOODLE, HTML, MARKDOWN...)"/>
+        <FIELD NAME="timecreated" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="false"/>
+        <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false"/>
+        <FIELD NAME="grade" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="100" SEQUENCE="false" COMMENT="The maximum grade. Can be negative to indicate the use of a scale."/>
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
+      </KEYS>
+      <INDEXES>
+        <INDEX NAME="course" UNIQUE="false" FIELDS="course"/>
+      </INDEXES>
+    </TABLE>
+    <TABLE NAME="colab_duplas" COMMENT="Default comment for colab, please edit me" >
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" />
+        <FIELD NAME="atividade" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" />
+        <FIELD NAME="par1" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false" />
+        <FIELD NAME="par2" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false" />
+        <FIELD NAME="obs" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false" />
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id" COMMENT="Primary key for certificate_issues" />
+      </KEYS>
+    </TABLE>
+    <TABLE NAME="colab_ip"  COMMENT="Default comment for colab, please edit me" >
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" />
+        <FIELD NAME="userid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" />
+        <FIELD NAME="ip_user" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" />
+        <FIELD NAME="time" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="obs" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false" />
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id" COMMENT="Primary key for certificate_issues" />
+      </KEYS>
+    </TABLE>
+  </TABLES>
+</XMLDB>

db/uninstall.php

@@ -0,0 +1,34 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle 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 General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Code that is executed before the tables and data are dropped during the plugin uninstallation.
+ *
+ * @package     colab
+ * @category    upgrade
+ * @copyright   2020 Your Name <you@example.com>
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Custom uninstallation procedure.
+ */
+function xmldb_colab_uninstall() {
+
+    return true;
+}

db/upgrade.php

@@ -0,0 +1,49 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle 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 General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Plugin upgrade steps are defined here.
+ *
+ * @package     colab
+ * @category    upgrade
+ * @copyright   2020 Your Name <you@example.com>
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+require_once(__DIR__.'/upgradelib.php');
+
+/**
+ * Execute colab upgrade from the given old version.
+ *
+ * @param int $oldversion
+ * @return bool
+ */
+function xmldb_colab_upgrade($oldversion) {
+    global $DB;
+
+    $dbman = $DB->get_manager();
+
+    // For further information please read the Upgrade API documentation:
+    // https://docs.moodle.org/dev/Upgrade_API
+    //
+    // You will also have to create the db/install.xml file by using the XMLDB Editor.
+    // Documentation for the XMLDB Editor can be found at:
+    // https://docs.moodle.org/dev/XMLDB_editor
+
+    return true;
+}

db/upgradelib.php

@@ -0,0 +1,39 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle 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 General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Plugin upgrade helper functions are defined here.
+ *
+ * @package     colab
+ * @category    upgrade
+ * @copyright   2020 Your Name <you@example.com>
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Helper function used by the upgrade.php file.
+ */
+function colab_helper_function() {
+    global $DB;
+
+    // Please note that you should always be performing any task using raw (low
+    // level) database access exclusively, avoiding any use of the Moodle APIs.
+    //
+    // For more information please read the available Moodle documentation:
+    // https://docs.moodle.org/dev/Upgrade_API
+}

grade.php

@@ -0,0 +1,38 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle 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 General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Redirect the user to the appropiate submission related page.
+ *
+ * @package     colab
+ * @category    grade
+ * @copyright   2020 Your Name <you@example.com>
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+require(__DIR__.'/../../config.php');
+
+// Course module ID.
+$id = required_param('id', PARAM_INT);
+
+// Item number may be != 0 for activities that allow more than one grade per user.
+$itemnumber = optional_param('itemnumber', 0, PARAM_INT);
+
+// Graded user ID (optional).
+$userid = optional_param('userid', 0, PARAM_INT);
+
+// In the simplest case just redirect to the view page.
+redirect('view.php?id='.$id);

index.php

@@ -0,0 +1,92 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle 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 General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Display information about all the colab modules in the requested course.
+ *
+ * @package     colab
+ * @copyright   2020 Your Name <you@example.com>
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+require(__DIR__.'/../../config.php');
+
+require_once(__DIR__.'/lib.php');
+
+$id = required_param('id', PARAM_INT);
+
+$course = $DB->get_record('course', array('id' => $id), '*', MUST_EXIST);
+require_course_login($course);
+
+$coursecontext = context_course::instance($course->id);
+
+$event = \mod_colab\event\course_module_instance_list_viewed::create(array(
+    'context' => $modulecontext
+));
+$event->add_record_snapshot('course', $course);
+$event->trigger();
+
+$PAGE->set_url('/mod/colab/index.php', array('id' => $id));
+$PAGE->set_title(format_string($course->fullname));
+$PAGE->set_heading(format_string($course->fullname));
+$PAGE->set_context($coursecontext);
+
+echo $OUTPUT->header();
+
+$modulenameplural = get_string('modulenameplural', 'colab');
+echo $OUTPUT->heading($modulenameplural);
+
+$colabs = get_all_instances_in_course('colab', $course);
+
+if (empty($colabs)) {
+    notice(get_string('nonewmodules', 'colab'), new moodle_url('/course/view.php', array('id' => $course->id)));
+}
+
+$table = new html_table();
+$table->attributes['class'] = 'generaltable mod_index';
+
+if ($course->format == 'weeks') {
+    $table->head  = array(get_string('week'), get_string('name'));
+    $table->align = array('center', 'left');
+} else if ($course->format == 'topics') {
+    $table->head  = array(get_string('topic'), get_string('name'));
+    $table->align = array('center', 'left', 'left', 'left');
+} else {
+    $table->head  = array(get_string('name'));
+    $table->align = array('left', 'left', 'left');
+}
+
+foreach ($colabs as $colab) {
+    if (!$colab->visible) {
+        $link = html_writer::link(
+            new moodle_url('/mod/colab/view.php', array('id' => $colab->coursemodule)),
+            format_string($colab->name, true),
+            array('class' => 'dimmed'));
+    } else {
+        $link = html_writer::link(
+            new moodle_url('/mod/colab/view.php', array('id' => $colab->coursemodule)),
+            format_string($colab->name, true));
+    }
+
+    if ($course->format == 'weeks' or $course->format == 'topics') {
+        $table->data[] = array($colab->section, $link);
+    } else {
+        $table->data[] = array($link);
+    }
+}
+
+echo html_writer::table($table);
+echo $OUTPUT->footer();

lang/en/colab.php

@@ -0,0 +1,40 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle 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 General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Plugin strings are defined here.
+ *
+ * @package     colab
+ * @category    string
+ * @copyright   2020 Your Name <you@example.com>
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+$string['colab:addinstance'] = 'colab add instance';
+$string['colabfieldset'] = 'colabfieldset';
+$string['colabname'] = 'colab';
+$string['colabname_help'] = 'colab';
+$string['colabsettings'] = 'colabsettings';
+$string['missingidandcmid'] = 'Missing id and cmid';
+$string['modulename'] = 'colab';
+$string['modulename_help'] = 'colab';
+$string['modulenameplural'] = 'colab';
+$string['nonewmodules'] = 'No new modules';
+$string['pluginadministration'] = 'Plugin administration';
+$string['pluginname'] = 'Module colab';
+$string['view'] = 'View';

lib.php

@@ -0,0 +1,293 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle 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 General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Library of interface functions and constants.
+ *
+ * @package     colab
+ * @copyright   2020 Your Name <you@example.com>
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Return if the plugin supports $feature.
+ *
+ * @param string $feature Constant representing the feature.
+ * @return true | null True if the feature is supported, null otherwise.
+ */
+function colab_supports($feature) {
+    switch ($feature) {
+        case FEATURE_GRADE_HAS_GRADE:
+            return true;
+        case FEATURE_MOD_INTRO:
+            return true;
+        default:
+            return null;
+    }
+}
+
+/**
+ * Saves a new instance of the colab into the database.
+ *
+ * Given an object containing all the necessary data, (defined by the form
+ * in mod_form.php) this function will create a new instance and return the id
+ * number of the instance.
+ *
+ * @param object $moduleinstance An object from the form.
+ * @param mod_colab_mod_form $mform The form.
+ * @return int The id of the newly inserted record.
+ */
+function colab_add_instance($moduleinstance, $mform = null) {
+    global $DB;
+
+    $moduleinstance->timecreated = time();
+
+    $id = $DB->insert_record('colab', $moduleinstance);
+
+    return $id;
+}
+
+/**
+ * Updates an instance of the colab in the database.
+ *
+ * Given an object containing all the necessary data (defined in mod_form.php),
+ * this function will update an existing instance with new data.
+ *
+ * @param object $moduleinstance An object from the form in mod_form.php.
+ * @param mod_colab_mod_form $mform The form.
+ * @return bool True if successful, false otherwise.
+ */
+function colab_update_instance($moduleinstance, $mform = null) {
+    global $DB;
+
+    $moduleinstance->timemodified = time();
+    $moduleinstance->id = $moduleinstance->instance;
+
+    return $DB->update_record('colab', $moduleinstance);
+}
+
+/**
+ * Removes an instance of the colab from the database.
+ *
+ * @param int $id Id of the module instance.
+ * @return bool True if successful, false on failure.
+ */
+function colab_delete_instance($id) {
+    global $DB;
+
+    $exists = $DB->get_record('colab', array('id' => $id));
+    if (!$exists) {
+        return false;
+    }
+
+    $DB->delete_records('colab', array('id' => $id));
+
+    return true;
+}
+
+/**
+ * Is a given scale used by the instance of colab?
+ *
+ * This function returns if a scale is being used by one colab
+ * if it has support for grading and scales.
+ *
+ * @param int $moduleinstanceid ID of an instance of this module.
+ * @param int $scaleid ID of the scale.
+ * @return bool True if the scale is used by the given colab instance.
+ */
+function colab_scale_used($moduleinstanceid, $scaleid) {
+    global $DB;
+
+    if ($scaleid && $DB->record_exists('colab', array('id' => $moduleinstanceid, 'grade' => -$scaleid))) {
+        return true;
+    } else {
+        return false;
+    }
+}
+
+/**
+ * Checks if scale is being used by any instance of colab.
+ *
+ * This is used to find out if scale used anywhere.
+ *
+ * @param int $scaleid ID of the scale.
+ * @return bool True if the scale is used by any colab instance.
+ */
+function colab_scale_used_anywhere($scaleid) {
+    global $DB;
+
+    if ($scaleid and $DB->record_exists('colab', array('grade' => -$scaleid))) {
+        return true;
+    } else {
+        return false;
+    }
+}
+
+/**
+ * Creates or updates grade item for the given colab instance.
+ *
+ * Needed by {@link grade_update_mod_grades()}.
+ *
+ * @param stdClass $moduleinstance Instance object with extra cmidnumber and modname property.
+ * @param bool $reset Reset grades in the gradebook.
+ * @return void.
+ */
+function colab_grade_item_update($moduleinstance, $reset=false) {
+    global $CFG;
+    require_once($CFG->libdir.'/gradelib.php');
+
+    $item = array();
+    $item['itemname'] = clean_param($moduleinstance->name, PARAM_NOTAGS);
+    $item['gradetype'] = GRADE_TYPE_VALUE;
+
+    if ($moduleinstance->grade > 0) {
+        $item['gradetype'] = GRADE_TYPE_VALUE;
+        $item['grademax']  = $moduleinstance->grade;
+        $item['grademin']  = 0;
+    } else if ($moduleinstance->grade < 0) {
+        $item['gradetype'] = GRADE_TYPE_SCALE;
+        $item['scaleid']   = -$moduleinstance->grade;
+    } else {
+        $item['gradetype'] = GRADE_TYPE_NONE;
+    }
+    if ($reset) {
+        $item['reset'] = true;
+    }
+
+    grade_update('/mod/colab', $moduleinstance->course, 'mod', 'colab', $moduleinstance->id, 0, null, $item);
+}
+
+/**
+ * Delete grade item for given colab instance.
+ *
+ * @param stdClass $moduleinstance Instance object.
+ * @return grade_item.
+ */
+function colab_grade_item_delete($moduleinstance) {
+    global $CFG;
+    require_once($CFG->libdir.'/gradelib.php');
+
+    return grade_update('/mod/colab', $moduleinstance->course, 'mod', 'colab',
+                        $moduleinstance->id, 0, null, array('deleted' => 1));
+}
+
+/**
+ * Update colab grades in the gradebook.
+ *
+ * Needed by {@link grade_update_mod_grades()}.
+ *
+ * @param stdClass $moduleinstance Instance object with extra cmidnumber and modname property.
+ * @param int $userid Update grade of specific user only, 0 means all participants.
+ */
+function colab_update_grades($moduleinstance, $userid = 0) {
+    global $CFG, $DB;
+    require_once($CFG->libdir.'/gradelib.php');
+
+    // Populate array of grade objects indexed by userid.
+    $grades = array();
+    grade_update('/mod/colab', $moduleinstance->course, 'mod', 'colab', $moduleinstance->id, 0, $grades);
+}
+
+/**
+ * Returns the lists of all browsable file areas within the given module context.
+ *
+ * The file area 'intro' for the activity introduction field is added automatically
+ * by {@link file_browser::get_file_info_context_module()}.
+ *
+ * @package     colab
+ * @category    files
+ *
+ * @param stdClass $course.
+ * @param stdClass $cm.
+ * @param stdClass $context.
+ * @return string[].
+ */
+function colab_get_file_areas($course, $cm, $context) {
+    return array();
+}
+
+/**
+ * File browsing support for colab file areas.
+ *
+ * @package     colab
+ * @category    files
+ *
+ * @param file_browser $browser.
+ * @param array $areas.
+ * @param stdClass $course.
+ * @param stdClass $cm.
+ * @param stdClass $context.
+ * @param string $filearea.
+ * @param int $itemid.
+ * @param string $filepath.
+ * @param string $filename.
+ * @return file_info Instance or null if not found.
+ */
+function colab_get_file_info($browser, $areas, $course, $cm, $context, $filearea, $itemid, $filepath, $filename) {
+    return null;
+}
+
+/**
+ * Serves the files from the colab file areas.
+ *
+ * @package     colab
+ * @category    files
+ *
+ * @param stdClass $course The course object.
+ * @param stdClass $cm The course module object.
+ * @param stdClass $context The colab's context.
+ * @param string $filearea The name of the file area.
+ * @param array $args Extra arguments (itemid, path).
+ * @param bool $forcedownload Whether or not force download.
+ * @param array $options Additional options affecting the file serving.
+ */
+function colab_pluginfile($course, $cm, $context, $filearea, $args, $forcedownload, $options = array()) {
+    global $DB, $CFG;
+
+    if ($context->contextlevel != CONTEXT_MODULE) {
+        send_file_not_found();
+    }
+
+    require_login($course, true, $cm);
+    send_file_not_found();
+}
+
+/**
+ * Extends the global navigation tree by adding colab nodes if there is a relevant content.
+ *
+ * This can be called by an AJAX request so do not rely on $PAGE as it might not be set up properly.
+ *
+ * @param navigation_node $colabnode An object representing the navigation tree node.
+ * @param stdClass $course.
+ * @param stdClass $module.
+ * @param cm_info $cm.
+ */
+function colab_extend_navigation($colabnode, $course, $module, $cm) {
+}
+
+/**
+ * Extends the settings navigation with the colab settings.
+ *
+ * This function is called when the context for the page is a colab module.
+ * This is not called by AJAX so it is safe to rely on the $PAGE.
+ *
+ * @param settings_navigation $settingsnav {@link settings_navigation}
+ * @param navigation_node $colabnode {@link navigation_node}
+ */
+function colab_extend_settings_navigation($settingsnav, $colabnode = null) {
+}

mod_form.php

@@ -0,0 +1,131 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle 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 General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * The main colab configuration form.
+ *
+ * @package     colab
+ * @copyright   2020 Your Name <you@example.com>
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+require_once($CFG->dirroot.'/course/moodleform_mod.php');
+
+/**
+ * Module instance settings form.
+ *
+ * @package    colab
+ * @copyright  2020 Your Name <you@example.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class mod_colab_mod_form extends moodleform_mod {
+
+    /**
+     * Defines forms elements
+     */
+    public function definition() {
+        global $CFG;
+
+        $mform = $this->_form;
+
+        // Adding the "general" fieldset, where all the common settings are showed.
+        $mform->addElement('header', 'general', get_string('general', 'form'));
+
+        // Adding the standard "name" field.
+        $mform->addElement('text', 'name', get_string('colabname', 'colab'), array('size' => '64'));
+
+        if (!empty($CFG->formatstringstriptags)) {
+            $mform->setType('name', PARAM_TEXT);
+        } else {
+            $mform->setType('name', PARAM_CLEANHTML);
+        }
+
+        $mform->addRule('name', null, 'required', null, 'client');
+        $mform->addRule('name', get_string('maximumchars', '', 255), 'maxlength', 255, 'client');
+        $mform->addHelpButton('name', 'colabname', 'colab');
+
+        // Adding the standard "intro" and "introformat" fields.
+        if ($CFG->branch >= 29) {
+            $this->standard_intro_elements();
+        } else {
+            $this->add_intro_editor();
+        }
+
+        // Adding the rest of colab settings, spreading all them into this fieldset
+        // ... or adding more fieldsets ('header' elements) if needed for better logic.
+        $mform->addElement('static', 'label1', 'colabsettings', get_string('colabsettings', 'colab'));
+        $mform->addElement('header', 'colabfieldset', get_string('colabfieldset', 'colab'));
+
+        // Add standard grading elements.
+        $this->standard_grading_coursemodule_elements();
+
+        // Add standard elements.
+        $this->standard_coursemodule_elements();
+
+        // Add standard buttons.
+        $this->add_action_buttons();
+
+
+
+    }
+
+    function validation($data, $files) {
+        global $COURSE, $DB, $CFG;
+        echo 'entrada pós_criação';
+        print_r($data);
+        echo 'entrada files <br>';
+        print_r($files);
+
+        //encontra a ultma atividade
+        $params = array('course' => $data->modulename);	
+        $records = $DB->get_record_sql('select max(id)+1 as ultima_ativ from {course}',$params);
+
+        echo 'ultima atividade <br>';
+        echo '1- <br>';
+        echo $records -> ultima_ativ ;
+        // deleta caso tenha algum registro anterior
+        try {
+        
+            $DB->delete_records("colab_duplas", array('atividade'=>$records -> ultima_ativ));
+    
+        } catch (Exception $e) {
+            echo 'Caught exception não foi possivel deletar duplas: ',  $e->getMessage(), "\n";
+        }
+        //grava as duplas (teste fixo)
+    try {
+        
+        $value-> id = 1;
+        $value-> atividade = $records -> ultima_ativ ;
+
+        $value-> par1 = 'user_test_1';
+
+        $value-> par2 = 'user_test_2'; 
+        $value-> obs = '';
+        $DB->insert_record("colab_duplas", $value);
+
+    } catch (Exception $e) {
+        echo 'Caught exception não foi possivel gravar registo  de dupla: ',  $e->getMessage(), "\n";
+    }
+
+     //   exit;
+
+
+        return array();
+     }
+
+}

settings.php

@@ -0,0 +1,31 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle 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 General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Plugin administration pages are defined here.
+ *
+ * @package     colab
+ * @category    admin
+ * @copyright   2020 Your Name <you@example.com>
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+if ($ADMIN->fulltree) {
+   // TODO: Define the plugin settings page.
+   // https://docs.moodle.org/dev/Admin_settings
+}

version.php

@@ -0,0 +1,31 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle 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 General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Plugin version and other meta-data are defined here.
+ *
+ * @package     colab
+ * @copyright   2020 Your Name <you@example.com>
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+$plugin->component = 'mod_colab';
+$plugin->release = '0.1.0';
+$plugin->version = 2020112800;
+$plugin->requires = 2017111300;
+$plugin->maturity = MATURITY_ALPHA;

view.php

@@ -0,0 +1,196 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle 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 General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Prints an instance of colab.
+ *
+ * @package     colab
+ * @copyright   2020 Your Name <you@example.com>
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+require(__DIR__.'/../../config.php');
+require_once(__DIR__.'/lib.php');
+global $COURSE, $DB, $CFG;
+// Course_module ID, or
+$id = optional_param('id', 0, PARAM_INT);
+
+// ... module instance id.
+$c  = optional_param('c', 0, PARAM_INT);
+
+if ($id) {
+    $cm             = get_coursemodule_from_id('colab', $id, 0, false, MUST_EXIST);
+    $course         = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
+    $moduleinstance = $DB->get_record('colab', array('id' => $cm->instance), '*', MUST_EXIST);
+} else if ($c) {
+    $moduleinstance = $DB->get_record('colab', array('id' => $n), '*', MUST_EXIST);
+    $course         = $DB->get_record('course', array('id' => $moduleinstance->course), '*', MUST_EXIST);
+    $cm             = get_coursemodule_from_instance('colab', $moduleinstance->id, $course->id, false, MUST_EXIST);
+} else {
+    print_error(get_string('missingidandcmid', colab));
+}
+
+require_login($course, true, $cm);
+
+$modulecontext = context_module::instance($cm->id);
+
+$event = \mod_colab\event\course_module_viewed::create(array(
+    'objectid' => $moduleinstance->id,
+    'context' => $modulecontext
+));
+$event->add_record_snapshot('course', $course);
+$event->add_record_snapshot('colab', $moduleinstance);
+$event->trigger();
+
+$PAGE->set_url('/mod/colab/view.php', array('id' => $cm->id));
+$PAGE->set_title(format_string($moduleinstance->name));
+$PAGE->set_heading(format_string($course->fullname));
+$PAGE->set_context($modulecontext);
+
+echo $OUTPUT->header();
+
+
+echo "meu ip : ".ip2long(getremoteaddr())."<br>" ;
+$achou_dupla = 0;
+
+
+
+
+//verifica se já não foi excolhido
+
+
+try{
+
+    $params = array('ativade_atual' => $moduleinstance->id,'usuario'=>$USER->id);
+    $records = $DB->get_record_sql("select obs as obs from {colab_ip}  where userid = :usuario" ,$params);
+    print("reultado obs: " );
+    print($records->obs);
+} catch (Exception $e) {
+    echo 'erro obs: ',  $e->getMessage(), "\n";
+    $dupla = '';
+}
+
+
+//se não localizou dupla ou não tem registro
+if($records->obs == 0 or $records->obs == ' ' ){
+echo "não registou ou não foi escolhido <br>";
+//tenta ver se tem uma dupla 
+    //tenta achar uma pessoa esperando
+    try{
+
+        $params = array('usuario'=>$USER->id);
+        $records = $DB->get_record_sql("select ip_user as ip_dupla from {colab_ip}  where userid !=  :usuario and obs = 0 limit 1" ,$params);
+        
+        //echo "usuário".$USER->id;
+        print("reultado dupla " ); 
+        print($records->ip_dupla);
+    } catch (Exception $e) {
+        echo 'erro dupla: ',  $e->getMessage(), "\n";
+        $dupla = '';
+    }
+
+    if($records->ip_dupla == 0 or $records->ip_dupla == ' ' ){print("vc é o primeiro, recarregue a página" );}
+    else {
+        //futura dupla localizada
+        try{
+            $value-> id = 1;
+            $value-> userid = $USER->id ;
+
+            $value-> ip_user = ip2long(getremoteaddr()) ;
+
+            $value-> time = time(); 
+            $value-> obs = $records->ip_dupla;
+            $DB->insert_record("colab_ip", $value);
+
+        echo "registra o IP <br>";
+        } catch (Exception $e) {
+            echo 'erro regisra ip pós dupla: ',  $e->getMessage(), "\n";
+            $dupla = '';
+        }   
+        print("achou uma dupla esperando" );
+        print($records->ip_dupla );
+        
+        $DB->execute('update mdla_colab_ip set obs = :ip_meu where ip_user = :ip_dupla', array('ip_meu'=>ip2long(getremoteaddr()),'ip_dupla'=>$records->ip_dupla));
+        
+        //executa o jogo com a dupla
+        $achou_dupla = 1;
+        echo "<iframe src='http://192.168.1.182/ihanoi/index.html?id='.$records->ip_dupla width = '1000' height = '1000' >"; 
+
+
+        echo "</iframe>";
+            
+            
+
+
+    }
+
+
+
+
+} else {
+
+
+//tem uma dupla te esperando
+echo "tem uma dupla te esperando ";
+echo $records->obs;
+$achou_dupla = 1;
+
+
+
+$DB->execute('update mdla_colab_ip set obs = :ip_dupla where ip_user = :ip_meu', array('ip_meu'=>ip2long(getremoteaddr()),'ip_dupla'=>$records->obs));       
+
+echo "<iframe src='http://192.168.1.182/ihanoi/index.html?id='.$records->obs width = '1000' height = '1000' >"; 
+
+
+echo "</iframe>";
+
+
+
+}
+
+
+//caso já tenha localizado a dupla, não precisa atualizar o ip
+if($achou_dupla == 0){
+    //atualização de IP
+    //deleta o ultimo ip
+    try {
+        //$DB->delete_records("colab_ip", array('userid'=>$CFG->dbuser));
+        $DB->delete_records("colab_ip", array('userid'=>$USER->id));
+    } catch (Exception $e) {
+        echo 'Caught exception sem registro de ip: ',  $e->getMessage(), "\n";
+    }
+    //salva o ip atual
+    try {
+        
+        $value-> id = 1;
+        $value-> userid = $USER->id ;
+
+        $value-> ip_user = ip2long(getremoteaddr()) ;
+
+        $value-> time = time(); 
+        $value-> obs = 0;
+        $DB->insert_record("colab_ip", $value);
+
+    } catch (Exception $e) {
+        echo 'Caught exception não foi possivel grava registo  de ip: ',  $e->getMessage(), "\n";
+    }
+}
+
+
+//print_r($CFG);
+
+
+echo $OUTPUT->footer();