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674
LICENSE
674
LICENSE
@ -1,674 +0,0 @@
|
||||
GNU GENERAL PUBLIC LICENSE
|
||||
Version 3, 29 June 2007
|
||||
|
||||
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
|
||||
Everyone is permitted to copy and distribute verbatim copies
|
||||
of this license document, but changing it is not allowed.
|
||||
|
||||
Preamble
|
||||
|
||||
The GNU General Public License is a free, copyleft license for
|
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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.
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||||
|
||||
For the developers' and authors' protection, the GPL clearly explains
|
||||
that there is no warranty for this free software. For both users' and
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||||
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.
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||||
|
||||
Some devices are designed to deny users access to install or run
|
||||
modified versions of the software inside them, although the manufacturer
|
||||
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|
||||
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
|
||||
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|
||||
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|
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make it effectively proprietary. To prevent this, the GPL assures that
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patents cannot be used to render the program non-free.
|
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|
||||
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 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
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License. Each licensee is addressed as "you". "Licensees" and
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||||
To "modify" a work means to copy from or adapt all or part of the work
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exact copy. The resulting work is called a "modified version" of the
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earlier work or a work "based on" the earlier work.
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|
||||
A "covered work" means either the unmodified Program or a work based
|
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on the Program.
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|
||||
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
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computer or modifying a private copy. Propagation includes copying,
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distribution (with or without modification), making available to the
|
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public, and in some countries other activities as well.
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|
||||
To "convey" a work means any kind of propagation that enables other
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parties to make or receive copies. Mere interaction with a user through
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||||
a computer network, with no transfer of a copy, is not conveying.
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|
||||
An interactive user interface displays "Appropriate Legal Notices"
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to the extent that it includes a convenient and prominently visible
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|
||||
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||||
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|
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the interface presents a list of user commands or options, such as a
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|
||||
1. Source Code.
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|
||||
The "source code" for a work means the preferred form of the work
|
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for making modifications to it. "Object code" means any non-source
|
||||
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|
||||
A "Standard Interface" means an interface that either is an official
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standard defined by a recognized standards body, or, in the case of
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||||
interfaces specified for a particular programming language, one that
|
||||
is widely used among developers working in that language.
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|
||||
The "System Libraries" of an executable work include anything, other
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than the work as a whole, that (a) is included in the normal form of
|
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packaging a Major Component, but which is not part of that Major
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||||
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|
||||
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|
||||
"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
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||||
The "Corresponding Source" for a work in object code form means all
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||||
the source code needed to generate, install, and (for an executable
|
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|
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|
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System Libraries, or general-purpose tools or generally available free
|
||||
programs which are used unmodified in performing those activities but
|
||||
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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
|
||||
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|
||||
|
||||
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. 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 "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 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 "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 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 "about box".
|
||||
|
||||
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 GPL, see
|
||||
<http://www.gnu.org/licenses/>.
|
||||
|
||||
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
|
||||
<http://www.gnu.org/philosophy/why-not-lgpl.html>.
|
||||
68
README.md
68
README.md
@ -1,51 +1,33 @@
|
||||
YOURLS-AuthMgrPlus
|
||||
yourls-authmgr-plugin
|
||||
=====================
|
||||
|
||||
This plugin manages essential YOURLS functions and separates user data with role-based access controls (RBAC). With access controls enabled, you can safely delegate access to the admin pages and API while keeping link data private. You share an installation, log on, add a link, and nobody else sees it.
|
||||
This plugin adds role-based access controls (RBAC) to YOURLS. By assigning users to roles like "Editor" and "Contributor" you can limit the changes they are permitted to make.
|
||||
|
||||
Features
|
||||
--------
|
||||
- Easily assign users to roles
|
||||
- Easily fine tune role permissions
|
||||
- IPv4 based Authentication (optional)
|
||||
- All plugin pages, including main management page, hidden to non-admins by default. Easy to unblock pages.
|
||||
- Plenty of hooks to filter Roles, Role Capabilities, and _any_ of the default data environemnt (such as plugin page visibility)
|
||||
- Fine(r) tuned API access
|
||||
- PHP 8 compatible
|
||||
- No tracking of admins or editors by default
|
||||
|
||||
Requirements
|
||||
------------
|
||||
- YOURLS 1.7.3 +
|
||||
- Incompatible Plugins:
|
||||
- nicwaller's [`authmgr`](https://github.com/nicwaller/yourls-authmgr-plugin)
|
||||
- Ian Barber's [`Seperate Users`](https://github.com/ianbarber/Yourls-Separate-Users)
|
||||
With access controls enabled, you can safely delegate access to the admin pages.
|
||||
|
||||
Installation
|
||||
------------
|
||||
1. Download the [latest release](https://github.com/joshp23/YOURLS-AuthMgrPlus) of this plugin.
|
||||
1. Copy the `authMgrPlus` folder into your `user/plugins` folder for YOURLS.
|
||||
1. Set up some parameters for authMgrPlus (details below)
|
||||
1. Download the [latest release](https://github.com/nicwaller/yourls-authmgr-plugin/tags) of yourls-authmgr-plugin.
|
||||
1. Copy the plugin folder into your `user/plugins` folder for YOURLS.
|
||||
1. Set up the parameters for authmgr (details below)
|
||||
1. Activate the plugin with the plugin manager in the YOURLS admin interface.
|
||||
1. If you have pre-existing links in your database, you will have to manually asign them a user via an sql querry.
|
||||
|
||||
Default Roles
|
||||
-------------
|
||||
The default roles are set up as follows:
|
||||
|
||||
Role | Capabilities
|
||||
--------------|---------------------------------------------------------------------------------------------------
|
||||
Administrator | Can manage plugins, no limits, not tracked on any
|
||||
Editor | Can add (+API), access own and all others', edit & delete own & anon URL's, not tracked on any
|
||||
Contributor | Can add (+API), access own and anon's, and edit & delete own URLs, not tracked on own
|
||||
Anonymous | Can add and access (see stats, etc) anon links (If public)
|
||||
--------------|-------------------------------------------------
|
||||
Administrator | No Limits
|
||||
Editor | Cannot manage plugins
|
||||
Contributor | Cannot manage plugins, edit URLs, or delete URLs
|
||||
|
||||
Configuration
|
||||
-------------
|
||||
Add role assignments to your `user/config.php` file.
|
||||
|
||||
```
|
||||
$amp_role_assignment = array(
|
||||
$authmgr_role_assignment = array(
|
||||
'administrator' => array(
|
||||
'your_username',
|
||||
),
|
||||
@ -61,33 +43,7 @@ $amp_role_assignment = array(
|
||||
You can also designate a range of IP addresses that will automatically be granted all capabilities. By default, all accesses from IPv4 localhost (127.0.0.0/8) are granted full access.
|
||||
|
||||
```
|
||||
$amp_admin_ipranges = array(
|
||||
$authmgr_admin_ipranges = array(
|
||||
'127.0.0.0/8',
|
||||
);
|
||||
```
|
||||
Plugin management and plugin pages are available to admins only by default. Individual pages can be exposed to non-admin roles like so:
|
||||
```
|
||||
$amp_allowed_plugin_pages = array(
|
||||
'sample_page',
|
||||
'another_plugin_slug'
|
||||
);
|
||||
```
|
||||
Explore the code to see how to set `$amp_role_capabilities` and `$amp_anon_capabilities`. These are set to defaults in the `amp_env_check()` function.
|
||||
|
||||
You can also assign a default role to all logged-in users that have no explicit role (note, case sensative):
|
||||
```
|
||||
$amp_default_role = "Editor";
|
||||
```
|
||||
|
||||
|
||||
#### NOTE:
|
||||
This is a fork of nicwaller's [Authmgr](https://github.com/nicwaller/yourls-authmgr-plugin) merged with Ian barber's [Separate Users](https://github.com/joshp23/Yourls-Separate-Users) plugin. Both code bases underwent heavy rewrites, and have been extensively updated and tightly integrated here, resulting in a lean and highly functional user authorization management environment.
|
||||
|
||||
### Tips
|
||||
Dogecoin: DARhgg9q3HAWYZuN95DKnFonADrSWUimy3
|
||||
|
||||
License
|
||||
-------
|
||||
Copyright 2018 Joshua Panter
|
||||
Copyright 2013 Nicholas Waller (code@nicwaller.com)
|
||||
Copyright 2011 Ian Barber
|
||||
|
||||
@ -1,691 +0,0 @@
|
||||
<?php
|
||||
/*
|
||||
Plugin Name: Auth Manager Plus
|
||||
Plugin URI: https://github.com/joshp23/YOURLS-AuthMgrPlus
|
||||
Description: Role Based Access Controlls with seperated user data for authenticated users
|
||||
Version: 2.3.1
|
||||
Author: Josh Panter, nicwaller, Ian Barber <ian.barber@gmail.com>
|
||||
Author URI: https://unfettered.net
|
||||
*/
|
||||
|
||||
// No direct call
|
||||
if( !defined( 'YOURLS_ABSPATH' ) ) die();
|
||||
|
||||
/****************** SET UP CONSTANTS ******************/
|
||||
|
||||
class ampRoles {
|
||||
const Administrator = 'Administrator';
|
||||
const Editor = 'Editor';
|
||||
const Contributor = 'Contributor';
|
||||
}
|
||||
|
||||
class ampCap {
|
||||
const ShowAdmin = 'ShowAdmin';
|
||||
const AddURL = 'AddURL';
|
||||
const DeleteURL = 'DeleteURL';
|
||||
const EditURL = 'EditURL';
|
||||
const ShareURL = 'ShareURL';
|
||||
const Traceless = 'Traceless';
|
||||
const ManageAnonURL = 'ManageAnonURL';
|
||||
const ManageUsrsURL = 'ManageUsrsURL';
|
||||
const ManagePlugins = 'ManagePlugins';
|
||||
const API = 'API';
|
||||
const APIu = 'APIu';
|
||||
const ViewStats = 'ViewStats';
|
||||
const ViewAll = 'ViewAll';
|
||||
}
|
||||
|
||||
/********** Add hooks to intercept functionality in CORE **********/
|
||||
|
||||
yourls_add_action( 'load_template_infos', 'amp_intercept_stats' );
|
||||
function amp_intercept_stats() {
|
||||
if ( 'YOURLS_PRIVATE_INFOS' === true ) {
|
||||
amp_require_capability( ampCap::ViewStats );
|
||||
}
|
||||
}
|
||||
|
||||
yourls_add_action( 'api', 'amp_intercept_api' );
|
||||
function amp_intercept_api() {
|
||||
if ( 'YOURLS_PRIVATE_API' === true ) {
|
||||
if ( isset( $_REQUEST['shorturl'] ) || isset( $_REQUEST['stats'] ) ) {
|
||||
amp_require_capability( ampCap::APIu );
|
||||
} else {
|
||||
amp_require_capability( ampCap::API );
|
||||
}
|
||||
}
|
||||
}
|
||||
yourls_add_action( 'auth_successful', function() {
|
||||
if( yourls_is_admin() ) amp_intercept_admin();
|
||||
} );
|
||||
|
||||
/**
|
||||
* YOURLS processes most actions in the admin page. It would be ideal
|
||||
* to add a unique hook for each action, but unfortunately we need to
|
||||
* hook the admin page load itself, and try to figure out what action
|
||||
* is intended.
|
||||
*
|
||||
* TODO: look for these hooks
|
||||
*
|
||||
* At this point, reasonably assume that the current request is for
|
||||
* a rendering of the admin page.
|
||||
*/
|
||||
function amp_intercept_admin() {
|
||||
amp_require_capability( ampCap::ShowAdmin );
|
||||
|
||||
// we use this GET param to send up a feedback notice to user
|
||||
if ( isset( $_GET['access'] ) && $_GET['access']=='denied' ) {
|
||||
yourls_add_notice('Access Denied');
|
||||
}
|
||||
|
||||
// allow manipulation of this list ( be mindfull of extending Auth mp Capability class if needed )
|
||||
$action_capability_map = yourls_apply_filter( 'amp_action_capability_map',
|
||||
array( 'add' => ampCap::AddURL,
|
||||
'delete' => ampCap::DeleteURL,
|
||||
'edit_display' => ampCap::EditURL,
|
||||
'edit_save' => ampCap::EditURL,
|
||||
'activate' => ampCap::ManagePlugins,
|
||||
'deactivate' => ampCap::ManagePlugins,
|
||||
) );
|
||||
|
||||
// Key actions like Add/Edit/Delete are AJAX requests
|
||||
if ( yourls_is_Ajax() ) {
|
||||
|
||||
// Define some boundaries for ownership
|
||||
// Allow some flexability with those boundaries
|
||||
$restricted_actions = yourls_apply_filter( 'amp_restricted_ajax_actions',
|
||||
array( 'edit_display',
|
||||
'edit_save',
|
||||
'delete'
|
||||
) );
|
||||
|
||||
$action_keyword = $_REQUEST['action'];
|
||||
$cap_needed = $action_capability_map[$action_keyword];
|
||||
|
||||
// Check the action against those boundaries
|
||||
if ( in_array( $action_keyword, $restricted_actions) ) {
|
||||
$keyword = $_REQUEST['keyword'];
|
||||
$do = amp_manage_keyword( $keyword, $cap_needed );
|
||||
} else {
|
||||
$do = amp_have_capability( $cap_needed );
|
||||
}
|
||||
|
||||
if ( $do !== true ) {
|
||||
$err = array();
|
||||
$err['status'] = 'fail';
|
||||
$err['code'] = 'error:authorization';
|
||||
$err['message'] = 'Access Denied';
|
||||
$err['errorCode'] = '403';
|
||||
echo json_encode( $err );
|
||||
die();
|
||||
}
|
||||
}
|
||||
|
||||
// Intercept requests for plugin management
|
||||
if( isset( $_SERVER['REQUEST_URI'] ) && preg_match('/\/admin\/plugins\.php.*/', $_SERVER['REQUEST_URI'] ) ) {
|
||||
// Is this a plugin page request?
|
||||
if ( isset( $_REQUEST['page'] ) ) {
|
||||
// Is this an allowed plugin?
|
||||
global $amp_allowed_plugin_pages;
|
||||
if ( amp_have_capability( ampCap::ManagePlugins ) !== true) {
|
||||
$r = $_REQUEST['page'];
|
||||
if(!in_array($r, $amp_allowed_plugin_pages ) ) {
|
||||
yourls_redirect( yourls_admin_url( '?access=denied' ), 302 );
|
||||
}
|
||||
}
|
||||
} else {
|
||||
// Should this user touch plugins?
|
||||
if ( amp_have_capability( ampCap::ManagePlugins ) !== true) {
|
||||
yourls_redirect( yourls_admin_url( '?access=denied' ), 302 );
|
||||
}
|
||||
}
|
||||
|
||||
// intercept requests for global plugin management actions
|
||||
if (isset( $_REQUEST['plugin'] ) ) {
|
||||
$action_keyword = $_REQUEST['action'];
|
||||
$cap_needed = $action_capability_map[$action_keyword];
|
||||
if ( $cap_needed !== NULL && amp_have_capability( $cap_needed ) !== true) {
|
||||
yourls_redirect( yourls_admin_url( '?access=denied' ), 302 );
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Cosmetic filter: removes disallowed buttons from link list per short link
|
||||
*/
|
||||
|
||||
yourls_add_filter( 'table_add_row_action_array', 'amp_ajax_button_check' );
|
||||
function amp_ajax_button_check( $actions, $keyword ) {
|
||||
// define the amp capabilities that map to the buttons
|
||||
$button_cap_map = array('stats' => ampCap::ViewStats,
|
||||
'share' => ampCap::ShareURL,
|
||||
'edit' => ampCap::EditURL,
|
||||
'delete' => ampCap::DeleteURL,
|
||||
);
|
||||
|
||||
$button_cap_map = yourls_apply_filter( 'amp_button_capability_map', $button_cap_map );
|
||||
|
||||
// define restricted buttons
|
||||
$restricted_buttons = array('delete', 'edit');
|
||||
if ( 'YOURLS_PRIVATE_INFOS' === true )
|
||||
$restricted_buttons += ['stats'];
|
||||
|
||||
$restricted_buttons = yourls_apply_filter( 'amp_restricted_buttons', $restricted_buttons );
|
||||
|
||||
// unset any disallowed buttons
|
||||
foreach ( $actions as $action => $vars ) {
|
||||
$cap_needed = $button_cap_map[$action];
|
||||
if ( in_array( $action, $restricted_buttons) )
|
||||
$show = amp_manage_keyword( $keyword, $cap_needed );
|
||||
else
|
||||
$show = amp_have_capability( $cap_needed );
|
||||
if (!$show)
|
||||
unset( $actions[$action] );
|
||||
}
|
||||
return $actions;
|
||||
}
|
||||
|
||||
/*
|
||||
* Cosmetic filter: removes disallowed plugins from link list
|
||||
*/
|
||||
|
||||
yourls_add_filter( 'admin_sublinks', 'amp_admin_sublinks' );
|
||||
function amp_admin_sublinks( $links ) {
|
||||
|
||||
global $amp_allowed_plugin_pages;
|
||||
|
||||
if( empty( $links['plugins'] ) ) {
|
||||
|
||||
unset($links['plugins']);
|
||||
|
||||
} else {
|
||||
|
||||
if ( amp_have_capability( ampCap::ManagePlugins ) !== true) {
|
||||
if(!empty($links['plugins'])) {
|
||||
foreach( $links['plugins'] as $link => $ar ) {
|
||||
if(!in_array($link, $amp_allowed_plugin_pages) )
|
||||
unset($links['plugins'][$link]);
|
||||
}
|
||||
}
|
||||
}
|
||||
if(!empty($links['plugins'])) {
|
||||
sort($links['plugins']);
|
||||
}
|
||||
}
|
||||
return $links;
|
||||
}
|
||||
|
||||
/*
|
||||
* Cosmetic filter: displays currently available roles
|
||||
* by hovering mouse over the username in logout link.
|
||||
*/
|
||||
|
||||
yourls_add_filter( 'logout_link', 'amp_html_append_roles' );
|
||||
function amp_html_append_roles( $original ) {
|
||||
if ( amp_is_valid_user() ) {
|
||||
$listcaps = implode(', ', amp_current_capabilities());
|
||||
return '<div title="'.$listcaps.'">'.$original.'</div>';
|
||||
} else {
|
||||
return $original;
|
||||
}
|
||||
}
|
||||
|
||||
/**************** CAPABILITY TESTING ****************/
|
||||
|
||||
/*
|
||||
* If capability is not permitted in current context, then abort.
|
||||
* This is the most basic way to intercept unauthorized usage.
|
||||
*/
|
||||
// TODO: API responses!
|
||||
function amp_require_capability( $capability ) {
|
||||
if ( !amp_have_capability( $capability ) ) {
|
||||
// If the user can't view admin interface, return a plain error.
|
||||
if ( !amp_have_capability( ampCap::ShowAdmin ) ) {
|
||||
// header("HTTP/1.0 403 Forbidden");
|
||||
die('Require permissions to show admin interface.');
|
||||
}
|
||||
// Otherwise, render errors in admin interface
|
||||
yourls_redirect( yourls_admin_url( '?access=denied' ), 302 );
|
||||
die();
|
||||
}
|
||||
}
|
||||
|
||||
// Heart of system - Can the user do "X"?
|
||||
function amp_have_capability( $capability ) {
|
||||
|
||||
global $amp_anon_capabilities;
|
||||
global $amp_role_capabilities;
|
||||
global $amp_admin_ipranges;
|
||||
global $amp_default_role;
|
||||
|
||||
// Make sure the environment has been setup
|
||||
amp_env_check();
|
||||
|
||||
// Check anon capabilities
|
||||
$return = in_array( $capability, $amp_anon_capabilities );
|
||||
|
||||
// Check user-role based auth
|
||||
if( !$return ) {
|
||||
// Only users have roles
|
||||
if ( !amp_is_valid_user() ) //XXX
|
||||
return false;
|
||||
// List capabilities of particular user role
|
||||
$user = defined('YOURLS_USER') ? YOURLS_USER : NULL;
|
||||
$user_caps = array();
|
||||
if ( amp_user_is_assigned ( $user ) ) {
|
||||
foreach ( $amp_role_capabilities as $rolename => $rolecaps )
|
||||
if ( amp_user_has_role( $user, $rolename ) )
|
||||
$user_caps = array_merge( $user_caps, $rolecaps );
|
||||
}
|
||||
|
||||
elseif ( isset( $amp_default_role ) && in_array ($amp_default_role, array_keys( $amp_role_capabilities ) ) )
|
||||
$user_caps = $amp_role_capabilities [ $amp_default_role ];
|
||||
|
||||
$user_caps = array_unique( $user_caps );
|
||||
// Is the requested capability in this list?
|
||||
$return = in_array( $capability, $user_caps );
|
||||
}
|
||||
|
||||
// Is user connecting from an admin designated IP?
|
||||
if( !$return ) {
|
||||
// the array of ranges: '127.0.0.0/8' will always be admin
|
||||
foreach ($amp_admin_ipranges as $range) {
|
||||
$return = amp_cidr_match( $_SERVER['REMOTE_ADDR'], $range );
|
||||
if( $return )
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
return $return;
|
||||
}
|
||||
|
||||
// Determine if a user has been assigned a role
|
||||
function amp_user_is_assigned ( $username ) {
|
||||
|
||||
global $amp_role_assignment;
|
||||
if ( empty( $amp_role_assignment ) )
|
||||
return false;
|
||||
|
||||
$return = false;
|
||||
|
||||
foreach ( $amp_role_assignment as $role )
|
||||
if ( in_array( $username, $role ) ) {
|
||||
$return = true;
|
||||
break;
|
||||
}
|
||||
return $return;
|
||||
}
|
||||
|
||||
// Determine whether a specific user has a role.
|
||||
function amp_user_has_role( $username, $rolename ) {
|
||||
|
||||
global $amp_role_assignment;
|
||||
|
||||
// if no role assignments are created, grant everything FIXME: Make 'admin'
|
||||
// so the site still works even if stuff is configured wrong
|
||||
if ( empty( $amp_role_assignment ) )
|
||||
return true;
|
||||
|
||||
// do this the case-insensitive way
|
||||
// the entire array was made lowercase in environment check
|
||||
$username = strtolower($username);
|
||||
$rolename = strtolower($rolename);
|
||||
|
||||
// if the role doesn't exist, give up now.
|
||||
if ( !in_array( $rolename, array_keys( $amp_role_assignment ) ) )
|
||||
return false;
|
||||
|
||||
$users_in_role = $amp_role_assignment[$rolename];
|
||||
return in_array( $username, $users_in_role );
|
||||
}
|
||||
|
||||
/********************* KEYWORD OWNERSHIP ************************/
|
||||
|
||||
// Filter out restricted access to keyword data in...
|
||||
// Admin list
|
||||
yourls_add_filter( 'admin_list_where', 'amp_admin_list_where' );
|
||||
function amp_admin_list_where($where) {
|
||||
|
||||
if ( amp_have_capability( ampCap::ViewAll ) )
|
||||
return $where; // Allow admin/editor users to see the lot.
|
||||
|
||||
$user = defined('YOURLS_USER') ? YOURLS_USER : NULL;
|
||||
$where['sql'] = $where['sql'] . " AND (`user` = :user OR `user` IS NULL) ";
|
||||
$where['binds']['user'] = $user;
|
||||
|
||||
return $where;
|
||||
}
|
||||
|
||||
// API stats
|
||||
yourls_add_filter( 'api_url_stats', 'amp_api_url_stats' );
|
||||
function amp_api_url_stats( $return, $shorturl ) {
|
||||
|
||||
$keyword = str_replace( YOURLS_SITE . '/' , '', $shorturl ); // accept either 'http://ozh.in/abc' or 'abc'
|
||||
$keyword = yourls_sanitize_string( $keyword );
|
||||
$keyword = addslashes($keyword);
|
||||
|
||||
if( ( !defined('YOURLS_PRIVATE_INFOS') || YOURLS_PRIVATE_INFOS !== false )
|
||||
&& !amp_access_keyword($keyword) )
|
||||
return array('simple' => "URL is owned by another user", 'message' => 'URL is owned by another user', 'errorCode' => 403);
|
||||
|
||||
else
|
||||
return $return;
|
||||
}
|
||||
|
||||
// Info pages
|
||||
yourls_add_action( 'pre_yourls_infos', 'amp_pre_yourls_infos' );
|
||||
function amp_pre_yourls_infos( $keyword ) {
|
||||
|
||||
if( yourls_is_private() && !amp_access_keyword($keyword) ) {
|
||||
|
||||
if ( !amp_is_valid_user() )
|
||||
yourls_redirect( yourls_admin_url( '?access=denied' ), 302 );
|
||||
else
|
||||
yourls_redirect( YOURLS_SITE, 302 );
|
||||
}
|
||||
}
|
||||
|
||||
// DB stats
|
||||
yourls_add_filter( 'get_db_stats', 'amp_get_db_stats' );
|
||||
function amp_get_db_stats( $return, $where ) {
|
||||
|
||||
if ( amp_have_capability( ampCap::ViewAll ) )
|
||||
return $return; // Allow admin/editor users to see the lot.
|
||||
|
||||
// or... filter results
|
||||
global $ydb;
|
||||
$table_url = YOURLS_DB_TABLE_URL;
|
||||
$user = defined('YOURLS_USER') ? YOURLS_USER : NULL;
|
||||
|
||||
$where['sql'] = $where['sql'] . " AND (`user` = :user OR `user` IS NULL) ";
|
||||
$where['binds']['user'] = $user;
|
||||
|
||||
$sql = "SELECT COUNT(keyword) as count, SUM(clicks) as sum FROM `$table_url` WHERE 1=1 " . $where['sql'];
|
||||
$binds = $where['binds'];
|
||||
|
||||
$totals = $ydb->fetchObject($sql, $binds);
|
||||
|
||||
$return = array( 'total_links' => $totals->count, 'total_clicks' => $totals->sum );
|
||||
|
||||
return $return;
|
||||
}
|
||||
|
||||
// Fine tune track-me-not
|
||||
yourls_add_action('redirect_shorturl', 'amp_tracking');
|
||||
function amp_tracking( $u, $k = false ) {
|
||||
if( amp_is_valid_user() && ( amp_keyword_owner($k) || amp_have_capability( ampCap::Traceless ) ) ) {
|
||||
// No logging
|
||||
yourls_add_filter( 'shunt_update_clicks', function( ) { return true; } );
|
||||
yourls_add_filter( 'shunt_log_redirect', function( ) { return true; } );
|
||||
}
|
||||
}
|
||||
/********************* HOUSEKEEPING ************************/
|
||||
// Validate environment setup
|
||||
function amp_env_check() {
|
||||
global $amp_anon_capabilities;
|
||||
global $amp_role_capabilities;
|
||||
global $amp_role_assignment;
|
||||
global $amp_admin_ipranges;
|
||||
global $amp_allowed_plugin_pages;
|
||||
|
||||
if ( !isset( $amp_anon_capabilities) ) {
|
||||
$amp_anon_capabilities = array();
|
||||
}
|
||||
|
||||
if ( !isset( $amp_role_capabilities) ) {
|
||||
$amp_role_capabilities = array(
|
||||
ampRoles::Administrator => array(
|
||||
ampCap::ShowAdmin,
|
||||
ampCap::AddURL,
|
||||
ampCap::EditURL,
|
||||
ampCap::DeleteURL,
|
||||
ampCap::ShareURL,
|
||||
ampCap::Traceless,
|
||||
ampCap::ManageAnonURL,
|
||||
ampCap::ManageUsrsURL,
|
||||
ampCap::ManagePlugins,
|
||||
ampCap::API,
|
||||
ampCap::APIu,
|
||||
ampCap::ViewStats,
|
||||
ampCap::ViewAll,
|
||||
),
|
||||
ampRoles::Editor => array(
|
||||
ampCap::ShowAdmin,
|
||||
ampCap::AddURL,
|
||||
ampCap::EditURL,
|
||||
ampCap::DeleteURL,
|
||||
ampCap::ShareURL,
|
||||
ampCap::Traceless,
|
||||
ampCap::ManageAnonURL,
|
||||
ampCap::APIu,
|
||||
ampCap::ViewStats,
|
||||
ampCap::ViewAll,
|
||||
),
|
||||
ampRoles::Contributor => array(
|
||||
ampCap::ShowAdmin,
|
||||
ampCap::AddURL,
|
||||
ampCap::EditURL,
|
||||
ampCap::DeleteURL,
|
||||
ampCap::ShareURL,
|
||||
ampCap::APIu,
|
||||
ampCap::ViewStats,
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
if ( !isset( $amp_role_assignment ) ) {
|
||||
$amp_role_assignment = array();
|
||||
}
|
||||
|
||||
if ( !isset( $amp_admin_ipranges ) ) {
|
||||
$amp_admin_ipranges = array(
|
||||
'127.0.0.0/8',
|
||||
);
|
||||
}
|
||||
|
||||
if ( !isset( $amp_allowed_plugin_pages ) ) {
|
||||
$amp_allowed_plugin_pages = array(
|
||||
);
|
||||
}
|
||||
|
||||
// convert role assignment table to lower case if it hasn't been done already
|
||||
// this makes searches much easier!
|
||||
$amp_role_assignment_lower = array();
|
||||
foreach ( $amp_role_assignment as $key => $value ) {
|
||||
$t_key = strtolower( $key );
|
||||
$t_value = array_map('strtolower', $value);
|
||||
$amp_role_assignment_lower[$t_key] = $t_value;
|
||||
}
|
||||
$amp_role_assignment = $amp_role_assignment_lower;
|
||||
unset($amp_role_assignment_lower);
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
// Activation: add the user column to the URL table if not added
|
||||
yourls_add_action('activated_plugin', 'amp_activated');
|
||||
function amp_activated() {
|
||||
global $ydb;
|
||||
|
||||
$table = YOURLS_DB_TABLE_URL;
|
||||
$sql = "DESCRIBE `".$table."`";
|
||||
$results = $ydb->fetchObjects($sql);
|
||||
|
||||
$activated = false;
|
||||
foreach($results as $r) {
|
||||
if($r->Field == 'user') {
|
||||
$activated = true;
|
||||
}
|
||||
}
|
||||
if(!$activated) {
|
||||
if ($version) {
|
||||
$sql = "ALTER TABLE `".$table."` ADD `user` VARCHAR(255) NULL";
|
||||
$insert = $ydb->fetchAffected($sql);
|
||||
} else {
|
||||
$ydb->query("ALTER TABLE `".$table."` ADD `user` VARCHAR(255) NULL");
|
||||
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/***************** HELPER FUNCTIONS ********************/
|
||||
|
||||
// List currently available capabilities
|
||||
function amp_current_capabilities() {
|
||||
$current_capabilities = array();
|
||||
$all_capabilities = array(
|
||||
ampCap::ShowAdmin,
|
||||
ampCap::AddURL,
|
||||
ampCap::EditURL,
|
||||
ampCap::DeleteURL,
|
||||
ampCap::ShareURL,
|
||||
ampCap::Traceless,
|
||||
ampCap::ManageAnonURL,
|
||||
ampCap::ManageUsrsURL,
|
||||
ampCap::ManagePlugins,
|
||||
ampCap::API,
|
||||
ampCap::APIu,
|
||||
ampCap::ViewStats,
|
||||
ampCap::ViewAll,
|
||||
);
|
||||
|
||||
foreach ( $all_capabilities as $cap ) {
|
||||
if ( amp_have_capability( $cap ) ) {
|
||||
$current_capabilities[] = $cap;
|
||||
}
|
||||
}
|
||||
// allow manipulation of this list ( be mindfull of extending the ampCap class if needed )
|
||||
$current_capabilities = yourls_apply_filter( 'amp_current_capabilities', $current_capabilities);
|
||||
return $current_capabilities;
|
||||
}
|
||||
|
||||
// Check for IP in a range
|
||||
// from: http://stackoverflow.com/questions/594112/matching-an-ip-to-a-cidr-mask-in-php5
|
||||
function amp_cidr_match($ip, $range) {
|
||||
list ($subnet, $bits) = explode('/', $range);
|
||||
$ip = ip2long($ip);
|
||||
$subnet = ip2long($subnet);
|
||||
$mask = -1 << (32 - $bits);
|
||||
$subnet &= $mask; # nb: in case the supplied subnet wasn't correctly aligned
|
||||
return ($ip & $mask) == $subnet;
|
||||
}
|
||||
|
||||
// Check user access to a keyword ( can they see it )
|
||||
function amp_access_keyword( $keyword ) {
|
||||
|
||||
$users = array( YOURLS_USER !== false ? YOURLS_USER : NULL , NULL );
|
||||
$owner = amp_keyword_owner( $keyword );
|
||||
if ( amp_have_capability( ampCap::ViewAll ) || in_array( $owner , $users ) )
|
||||
return true;
|
||||
}
|
||||
|
||||
// Check user rights to a keyword ( can manage it )
|
||||
function amp_manage_keyword( $keyword, $capability ) {
|
||||
$return = false; // default is to deny access
|
||||
if ( amp_is_valid_user() ) { // only authenticated users can manaage keywords
|
||||
$owner = amp_keyword_owner($keyword);
|
||||
$user = defined('YOURLS_USER') ? YOURLS_USER : NULL;
|
||||
if ( amp_have_capability( ampCap::ManageUsrsURL ) // Admin?
|
||||
|| ( $owner === NULL && amp_have_capability( ampCap::ManageAnonURL ) ) // Editor?
|
||||
|| ( $owner === $user && amp_have_capability( $capability ) ) ) // Self Edit?
|
||||
$return = true;
|
||||
}
|
||||
return $return;
|
||||
|
||||
}
|
||||
|
||||
// Check keyword ownership
|
||||
function amp_keyword_owner( $keyword ) {
|
||||
global $ydb;
|
||||
$table = YOURLS_DB_TABLE_URL;
|
||||
$binds = array( 'keyword' => $keyword );
|
||||
$sql = "SELECT * FROM `$table` WHERE `keyword` = :keyword";
|
||||
$result = $ydb->fetchOne($sql, $binds);
|
||||
return $result['user'];
|
||||
}
|
||||
|
||||
// Record user info on keyword creation
|
||||
yourls_add_action( 'insert_link', 'amp_insert_link' );
|
||||
function amp_insert_link($actions) {
|
||||
global $ydb;
|
||||
|
||||
$keyword = $actions[2];
|
||||
$user = defined('YOURLS_USER') ? YOURLS_USER : NULL;
|
||||
$table = YOURLS_DB_TABLE_URL;
|
||||
|
||||
// Insert $keyword against $username
|
||||
$binds = array( 'user' => $user,
|
||||
'keyword' => $keyword);
|
||||
$sql = "UPDATE `$table` SET `user` = :user WHERE `keyword` = :keyword";
|
||||
$result = $ydb->fetchAffected($sql, $binds);
|
||||
}
|
||||
|
||||
// Quick user validation without triggering hooks
|
||||
function amp_is_valid_user() {
|
||||
|
||||
$valid = defined( 'YOURLS_USER' ) ? true : false;
|
||||
|
||||
if ( !$valid ) {
|
||||
|
||||
if ( yourls_is_API()
|
||||
&& isset( $_REQUEST['timestamp'] ) && !empty($_REQUEST['timestamp'] )
|
||||
&& isset( $_REQUEST['signature'] ) && !empty($_REQUEST['signature'] ) )
|
||||
$valid = yourls_check_signature_timestamp();
|
||||
elseif ( yourls_is_API()
|
||||
&& !isset( $_REQUEST['timestamp'] )
|
||||
&& isset( $_REQUEST['signature'] ) && !empty( $_REQUEST['signature'] ) )
|
||||
$valid = yourls_check_signature();
|
||||
elseif ( isset( $_REQUEST['username'] ) && isset( $_REQUEST['password'] )
|
||||
&& !empty( $_REQUEST['username'] ) && !empty( $_REQUEST['password'] ) )
|
||||
$valid = yourls_check_username_password();
|
||||
elseif ( !yourls_is_API() && isset( $_COOKIE[ yourls_cookie_name() ] ) )
|
||||
$valid = yourls_check_auth_cookie();
|
||||
}
|
||||
|
||||
return $valid;
|
||||
}
|
||||
|
||||
yourls_add_action( 'html_footer', 'amp_format_table_javascript' );
|
||||
|
||||
function amp_format_table_javascript() {
|
||||
echo <<<JS
|
||||
|
||||
<script>
|
||||
if($("body").hasClass("index")) {
|
||||
document.querySelector("#main_table tfoot th").colSpan = 7;
|
||||
document.querySelector("#nourl_found td").colSpan = 7;
|
||||
}
|
||||
</script>
|
||||
|
||||
JS;
|
||||
}
|
||||
|
||||
function array_insert($array, $position, $insert_array) {
|
||||
$first_array = array_splice($array, 0, $position);
|
||||
$array = array_merge($first_array, $insert_array, $array);
|
||||
|
||||
return $array;
|
||||
}
|
||||
|
||||
yourls_add_filter('table_head_cells', 'amp_username_table_head');
|
||||
function amp_username_table_head( $cells ) {
|
||||
$user_head = array( 'username' => 'Username' );
|
||||
$cells = array_insert($cells, 5, $user_head);
|
||||
return $cells;
|
||||
}
|
||||
|
||||
yourls_add_filter('table_add_row_cell_array', 'amp_add_user_row');
|
||||
function amp_add_user_row( $cells, $keyword ) {
|
||||
$username = amp_keyword_owner($keyword);
|
||||
$user_cell = array(
|
||||
'username' => array(
|
||||
'template' => '%username%',
|
||||
'username' => $username,
|
||||
)
|
||||
);
|
||||
$cells = array_insert($cells, 5, $user_cell);
|
||||
|
||||
return $cells;
|
||||
}
|
||||
|
||||
?>
|
||||
426
authmgr/plugin.php
Normal file
426
authmgr/plugin.php
Normal file
@ -0,0 +1,426 @@
|
||||
<?php
|
||||
/*
|
||||
Plugin Name: Authorization Manager
|
||||
Plugin URI: https://github.com/nicwaller/yourls-authmgr-plugin
|
||||
Description: Restrict classes of users to specific functions
|
||||
Version: 0.9.2
|
||||
Author: nicwaller
|
||||
Author URI: https://github.com/nicwaller
|
||||
*/
|
||||
|
||||
// No direct call
|
||||
if( !defined( 'YOURLS_ABSPATH' ) ) die();
|
||||
|
||||
/****************** SET UP CONSTANTS ******************/
|
||||
|
||||
/**
|
||||
* This plugin uses filter chains to evaluate whether specific actions
|
||||
* should be allowed to proceed. The filter names are defined here.
|
||||
*/
|
||||
define( 'AUTHMGR_ALLOW', 'filter_authmgr_allow' );
|
||||
|
||||
// Define constants used for naming roles (but they don't work in config.php)
|
||||
class AuthmgrRoles {
|
||||
const Administrator = 'Administrator';
|
||||
const Editor = 'Editor';
|
||||
const Contributor = 'Contributor';
|
||||
}
|
||||
|
||||
// Declare capability names for YOURLS built-in functionality
|
||||
class AuthmgrCapability {
|
||||
const ShowAdmin = 'ShowAdmin';
|
||||
const AddURL = 'AddURL';
|
||||
const DeleteURL = 'DeleteURL';
|
||||
const EditURL = 'EditURL';
|
||||
const ManagePlugins = 'ManagePlugins';
|
||||
const API = 'API';
|
||||
const ViewStats = 'ViewStats';
|
||||
|
||||
public function all()
|
||||
{
|
||||
$reflect = new ReflectionClass(get_class($this));
|
||||
return $reflect->getConstants();
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/********** Add hooks to intercept functionality in CORE ********/
|
||||
|
||||
yourls_add_action( 'load_template_infos', 'authmgr_intercept_stats' );
|
||||
function authmgr_intercept_stats() {
|
||||
authmgr_require_capability( AuthmgrCapability::ViewStats );
|
||||
}
|
||||
|
||||
yourls_add_action( 'api', 'authmgr_intercept_api' );
|
||||
function authmgr_intercept_api() {
|
||||
authmgr_require_capability( AuthmgrCapability::API );
|
||||
}
|
||||
|
||||
|
||||
yourls_add_action( 'auth_successful', 'authmgr_intercept_admin' );
|
||||
/**
|
||||
* YOURLS processes most actions in the admin page. It would be ideal
|
||||
* to add a unique hook for each action, but unfortunately we need to
|
||||
* hook the admin page load itself, and try to figure out what action
|
||||
* is intended.
|
||||
*
|
||||
* At this point, reasonably assume that the current request is for
|
||||
* a rendering of the admin page.
|
||||
*/
|
||||
function authmgr_intercept_admin() {
|
||||
authmgr_require_capability( AuthmgrCapability::ShowAdmin );
|
||||
|
||||
// we use this GET param to send up a feedback notice to user
|
||||
if ( isset( $_GET['access'] ) && $_GET['access']=='denied' ) {
|
||||
yourls_add_notice('Access Denied');
|
||||
}
|
||||
|
||||
$action_capability_map = array(
|
||||
'add' => AuthmgrCapability::AddURL,
|
||||
'delete' => AuthmgrCapability::DeleteURL,
|
||||
'edit_display' => AuthmgrCapability::EditURL,
|
||||
'edit_save' => AuthmgrCapability::EditURL,
|
||||
'activate' => AuthmgrCapability::ManagePlugins,
|
||||
'deactivate' => AuthmgrCapability::ManagePlugins,
|
||||
);
|
||||
|
||||
// intercept requests for plugin management
|
||||
if ( isset( $_REQUEST['plugin'] ) ) {
|
||||
$action_keyword = $_REQUEST['action'];
|
||||
$cap_needed = $action_capability_map[$action_keyword];
|
||||
if ( $cap_needed !== NULL && authmgr_have_capability( $cap_needed ) !== true) {
|
||||
yourls_redirect( yourls_admin_url( '?access=denied' ), 302 );
|
||||
}
|
||||
}
|
||||
|
||||
// Key actions like Add/Edit/Delete are AJAX requests
|
||||
if ( yourls_is_Ajax() ) {
|
||||
$action_keyword = $_REQUEST['action'];
|
||||
$cap_needed = $action_capability_map[$action_keyword];
|
||||
if ( authmgr_have_capability( $cap_needed ) !== true) {
|
||||
$err = array();
|
||||
$err['status'] = 'fail';
|
||||
$err['code'] = 'error:authorization';
|
||||
$err['message'] = 'Access Denied';
|
||||
$err['errorCode'] = '403';
|
||||
echo json_encode( $err );
|
||||
die();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
yourls_add_filter( 'logout_link', 'authmgr_html_append_roles' );
|
||||
/**
|
||||
* This is a cosmetic filter that makes it possible to see which roles are
|
||||
* currently available, just by mousing over the username in the logout link.
|
||||
*/
|
||||
function authmgr_html_append_roles( $original ) {
|
||||
$authenticated = yourls_is_valid_user();
|
||||
if ( $authenticated === true ) {
|
||||
$listcaps = implode(', ', authmgr_enumerate_current_capabilities());
|
||||
return '<div title="'.$listcaps.'">'.$original.'</div>';
|
||||
} else {
|
||||
return $original;
|
||||
}
|
||||
}
|
||||
|
||||
/************** PLUGIN ADMIN PAGE *************************/
|
||||
|
||||
yourls_add_action( 'plugins_loaded', 'authmgr_add_page' );
|
||||
function authmgr_add_page() {
|
||||
yourls_register_plugin_page( 'authmgr', 'Authorization Manager', 'authmgr_display_page' );
|
||||
}
|
||||
|
||||
function authmgr_display_page() {
|
||||
if ( count( $_POST ) > 0 ) {
|
||||
$rolenames = $_POST['rolenames'];
|
||||
$roledefs = array();
|
||||
foreach ($rolenames as $role) {
|
||||
$roledefs[$role] = $_POST['role-'.$role];
|
||||
}
|
||||
yourls_update_option( 'authmgr_roles', json_encode( $roledefs ) );
|
||||
echo '<b>Updated authmgr roles</b>';
|
||||
}
|
||||
|
||||
$roles = json_decode( yourls_get_option( 'authmgr_roles' ), true );
|
||||
|
||||
echo '<form name="roles" method="POST" action="plugins.php?page=authmgr">';
|
||||
echo '<table border="1">';
|
||||
$allcaps = AuthmgrCapability::all();
|
||||
echo '<tr> <th></th>';
|
||||
foreach ($allcaps as $cap) {
|
||||
echo "<th>$cap</th>";
|
||||
}
|
||||
echo '</tr>';
|
||||
foreach ($roles as $role => $selcaps) {
|
||||
echo '<input type="hidden" name="rolenames[]" value="'.$role.'">';
|
||||
echo '<tr>';
|
||||
echo "<th>$role</th>";
|
||||
foreach ($allcaps as $cap) {
|
||||
echo '<td>';
|
||||
$active = in_array( $cap, $selcaps );
|
||||
$selstr = ( $active ? 'checked' : '' );
|
||||
echo '<input type="checkbox" name="role-'.$role.'[]" value="'.$cap.'" '.$selstr.'>';
|
||||
echo '</td>';
|
||||
}
|
||||
echo '</tr>';
|
||||
}
|
||||
echo '</table>';
|
||||
echo '<input type="submit" value="Update Roles">';
|
||||
echo '</form>';
|
||||
}
|
||||
|
||||
/**************** CAPABILITY TEST/ENUMERATION ****************/
|
||||
|
||||
/*
|
||||
* If capability is not permitted in current context, then abort.
|
||||
* This is the most basic way to intercept unauthorized usage.
|
||||
*/
|
||||
function authmgr_require_capability( $capability ) {
|
||||
if ( !authmgr_have_capability( $capability ) ) {
|
||||
// If the user can't view admin interface, return a plain error.
|
||||
if ( !authmgr_have_capability( AuthmgrCapability::ShowAdmin ) ) {
|
||||
header("HTTP/1.0 403 Forbidden");
|
||||
die('Require permissions to show admin interface.');
|
||||
}
|
||||
// Otherwise, render errors in admin interface
|
||||
yourls_redirect( yourls_admin_url( '?access=denied' ), 302 );
|
||||
die();
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Returns array of capabilities currently available.
|
||||
*/
|
||||
function authmgr_enumerate_current_capabilities() {
|
||||
$current_capabilities = array();
|
||||
$all_capabilities = authmgr_enumerate_all_capabilities();
|
||||
|
||||
foreach ( $all_capabilities as $cap ) {
|
||||
if ( authmgr_have_capability( $cap ) ) {
|
||||
$current_capabilities[] = $cap;
|
||||
}
|
||||
}
|
||||
|
||||
return $current_capabilities;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a list of all capabilities that authmgr is aware of.
|
||||
* This list will be used to build the authmgr GUI.
|
||||
* Other plugins can take advantage of authmgr by hooking this filter.
|
||||
*/
|
||||
function authmgr_enumerate_all_capabilities() {
|
||||
$default_caps = AuthmgrCapability::all();
|
||||
$all_caps = yourls_apply_filter( 'authmgr_capabilities', $default_caps);
|
||||
return $all_caps;
|
||||
}
|
||||
|
||||
/*
|
||||
* This is where everything comes together.
|
||||
*
|
||||
* Use the "allow" filter chain to see if the requested capability
|
||||
* is permitted in the current context. Any function in the filter
|
||||
* chain can change the response, but well-behaved functions will
|
||||
* only change 'false' to 'true', never the other way around.
|
||||
*/
|
||||
function authmgr_have_capability( $capability, $object=null ) {
|
||||
return yourls_apply_filter( AUTHMGR_ALLOW, false, $capability, $object);
|
||||
}
|
||||
|
||||
/******************* FILTERS THAT GRANT CAPABILITIES *****************************/
|
||||
/* Whether an action is permitted is decided by running a filter chain. */
|
||||
/*********************************************************************************/
|
||||
|
||||
/*
|
||||
* What capabilities are always available, including anonymous users?
|
||||
*/
|
||||
yourls_add_filter( AUTHMGR_ALLOW, 'authmgr_check_anon_capability', 5 );
|
||||
function authmgr_check_anon_capability( $original, $capability, $object ) {
|
||||
global $authmgr_anon_capabilities;
|
||||
|
||||
// Shortcut - trust approval given by earlier filters
|
||||
if ( $original === true ) return true;
|
||||
|
||||
// Make sure the anon rights list has been setup
|
||||
authmgr_environment_check();
|
||||
|
||||
// Check list of capabilities that don't require authentication
|
||||
return in_array( $capability, $authmgr_anon_capabilities );
|
||||
}
|
||||
|
||||
/*
|
||||
* What capabilities are available through role assignments to the active user?
|
||||
*/
|
||||
yourls_add_filter( AUTHMGR_ALLOW, 'authmgr_check_user_capability', 10 );
|
||||
function authmgr_check_user_capability( $original, $capability, $object ) {
|
||||
global $authmgr_role_capabilities;
|
||||
|
||||
// Shortcut - trust approval given by earlier filters
|
||||
if ( $original === true ) return true;
|
||||
|
||||
// ensure $authmgr_role_capabilities has been set up
|
||||
authmgr_environment_check();
|
||||
|
||||
// If the user is not authenticated, then give up because only users have roles.
|
||||
$authenticated = yourls_is_valid_user();
|
||||
if ( $authenticated !== true )
|
||||
return false;
|
||||
|
||||
// Enumerate the capabilities available to this user through roles
|
||||
$user_caps = array();
|
||||
|
||||
foreach ( $authmgr_role_capabilities as $rolename => $rolecaps ) {
|
||||
if ( authmgr_user_has_role( YOURLS_USER, $rolename ) ) {
|
||||
$user_caps = array_merge( $user_caps, $rolecaps );
|
||||
}
|
||||
}
|
||||
$user_caps = array_unique( $user_caps );
|
||||
|
||||
// Is the desired capability in the enumerated list of capabilities?
|
||||
return in_array( $capability, $user_caps );
|
||||
}
|
||||
|
||||
/*
|
||||
* If the user is connecting from an IP address designated for admins,
|
||||
* then all capabilities are automatically granted.
|
||||
*
|
||||
* By default, only 127.0.0.0/8 (localhost) is an admin range.
|
||||
*/
|
||||
yourls_add_filter( AUTHMGR_ALLOW, 'authmgr_check_admin_ipranges', 15 );
|
||||
function authmgr_check_admin_ipranges( $original, $capability, $object ) {
|
||||
global $authmgr_admin_ipranges;
|
||||
|
||||
// Shortcut - trust approval given by earlier filters
|
||||
if ( $original === true ) return true;
|
||||
|
||||
// ensure $authmgr_admin_ipranges is setup
|
||||
authmgr_environment_check();
|
||||
|
||||
foreach ($authmgr_admin_ipranges as $range) {
|
||||
if ( authmgr_cidr_match( $_SERVER['REMOTE_ADDR'], $range ) )
|
||||
return true;
|
||||
}
|
||||
|
||||
return $original; // effectively returns false
|
||||
}
|
||||
|
||||
/*
|
||||
* What capabilities are available when making API requests without a username?
|
||||
*/
|
||||
yourls_add_filter( AUTHMGR_ALLOW, 'authmgr_check_apiuser_capability', 15 );
|
||||
function authmgr_check_apiuser_capability( $original, $capability, $object ) {
|
||||
// Shortcut - trust approval given by earlier filters
|
||||
if ( $original === true ) return true;
|
||||
|
||||
// In API mode and not using user/path authn? Let it go.
|
||||
if ( yourls_is_API() && !isset($_REQUEST['username']) )
|
||||
return true;
|
||||
|
||||
return $original;
|
||||
}
|
||||
|
||||
/******************** ROLE TEST AND ENUMERATION ***********************/
|
||||
|
||||
/*
|
||||
* Determine whether a specific user has a role.
|
||||
* Currently based on role definitions in user/config.php
|
||||
*/
|
||||
function authmgr_user_has_role( $username, $rolename ) {
|
||||
global $authmgr_role_assignment;
|
||||
|
||||
// if no role assignments are created, grant everything
|
||||
// so the site still works even if stuff is configured wrong
|
||||
if ( empty( $authmgr_role_assignment ) )
|
||||
return true;
|
||||
|
||||
// do this the case-insensitive way
|
||||
// the entire array was made lowercase in environment check
|
||||
$username = strtolower($username);
|
||||
$rolename = strtolower($rolename);
|
||||
|
||||
// if the role doesn't exist, give up now.
|
||||
if ( !in_array( $rolename, array_keys( $authmgr_role_assignment ) ) )
|
||||
return false;
|
||||
|
||||
$users_in_role = $authmgr_role_assignment[$rolename];
|
||||
return in_array( $username, $users_in_role );
|
||||
}
|
||||
|
||||
|
||||
/********************* VALIDATE CONFIGURATION ************************/
|
||||
|
||||
function authmgr_environment_check() {
|
||||
global $authmgr_anon_capabilities;
|
||||
global $authmgr_role_capabilities;
|
||||
global $authmgr_role_assignment;
|
||||
|
||||
if ( !isset( $authmgr_anon_capabilities) ) {
|
||||
$authmgr_anon_capabilities = array();
|
||||
}
|
||||
|
||||
if ( !isset( $authmgr_role_capabilities) ) {
|
||||
$authmgr_role_capabilities = array(
|
||||
AuthmgrRoles::Administrator => array(
|
||||
AuthmgrCapability::ShowAdmin,
|
||||
AuthmgrCapability::AddURL,
|
||||
AuthmgrCapability::DeleteURL,
|
||||
AuthmgrCapability::EditURL,
|
||||
AuthmgrCapability::ManagePlugins,
|
||||
AuthmgrCapability::API,
|
||||
AuthmgrCapability::ViewStats,
|
||||
),
|
||||
AuthmgrRoles::Editor => array(
|
||||
AuthmgrCapability::ShowAdmin,
|
||||
AuthmgrCapability::AddURL,
|
||||
AuthmgrCapability::EditURL,
|
||||
AuthmgrCapability::DeleteURL,
|
||||
AuthmgrCapability::ViewStats,
|
||||
),
|
||||
AuthmgrRoles::Contributor => array(
|
||||
AuthmgrCapability::ShowAdmin,
|
||||
AuthmgrCapability::AddURL,
|
||||
AuthmgrCapability::ViewStats,
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
if ( !isset( $authmgr_role_assignment ) ) {
|
||||
$authmgr_role_assignment = array();
|
||||
}
|
||||
|
||||
if ( !isset( $authmgr_iprange_roles ) ) {
|
||||
$authmgr_admin_ipranges = array(
|
||||
'127.0.0.0/8',
|
||||
);
|
||||
}
|
||||
|
||||
// convert role assignment table to lower case if it hasn't been done already
|
||||
// this makes searches much easier!
|
||||
$authmgr_role_assignment_lower = array();
|
||||
foreach ( $authmgr_role_assignment as $key => $value ) {
|
||||
$t_key = strtolower( $key );
|
||||
$t_value = array_map('strtolower', $value);
|
||||
$authmgr_role_assignment_lower[$t_key] = $t_value;
|
||||
}
|
||||
$authmgr_role_assignment = $authmgr_role_assignment_lower;
|
||||
unset($authmgr_role_assignment_lower);
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
// ***************** GENERAL UTILITY FUNCTIONS ********************
|
||||
|
||||
/*
|
||||
* Borrowed from:
|
||||
* http://stackoverflow.com/questions/594112/matching-an-ip-to-a-cidr-mask-in-php5
|
||||
*/
|
||||
function authmgr_cidr_match($ip, $range)
|
||||
{
|
||||
list ($subnet, $bits) = split('/', $range);
|
||||
$ip = ip2long($ip);
|
||||
$subnet = ip2long($subnet);
|
||||
$mask = -1 << (32 - $bits);
|
||||
$subnet &= $mask; # nb: in case the supplied subnet wasn't correctly aligned
|
||||
return ($ip & $mask) == $subnet;
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user