Compare commits
No commits in common. 'dns' and 'master' have entirely different histories.
@ -1,5 +1,31 @@
|
||||
# Compiled Object files, Static and Dynamic libs (Shared Objects)
|
||||
*.o
|
||||
*.a
|
||||
*.so
|
||||
|
||||
# Folders
|
||||
_obj
|
||||
_test
|
||||
|
||||
# Architecture specific extensions/prefixes
|
||||
*.[568vq]
|
||||
[568vq].out
|
||||
|
||||
*.cgo1.go
|
||||
*.cgo2.c
|
||||
_cgo_defun.c
|
||||
_cgo_gotypes.go
|
||||
_cgo_export.*
|
||||
|
||||
_testmain.go
|
||||
|
||||
*.exe
|
||||
*.test
|
||||
*.prof
|
||||
*~
|
||||
*.swp
|
||||
*.json
|
||||
*.txt
|
||||
gdns*
|
||||
*.key
|
||||
*.crt
|
||||
client.yaml
|
||||
server.yaml
|
||||
|
||||
@ -0,0 +1,675 @@
|
||||
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
|
||||
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.
|
||||
|
||||
"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
|
||||
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
|
||||
in a fashion requiring copyright permission, other than the making of an
|
||||
exact copy. The resulting work is called a "modified version" of the
|
||||
earlier work or a work "based on" the earlier work.
|
||||
|
||||
A "covered work" means either the unmodified Program or a work based
|
||||
on the Program.
|
||||
|
||||
To "propagate" a work means to do anything with it that, without
|
||||
permission, would make you directly or secondarily liable for
|
||||
infringement under applicable copyright law, except executing it on a
|
||||
computer or modifying a private copy. Propagation includes copying,
|
||||
distribution (with or without modification), making available to the
|
||||
public, and in some countries other activities as well.
|
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|
||||
To "convey" a work means any kind of propagation that enables other
|
||||
parties to make or receive copies. Mere interaction with a user through
|
||||
a computer network, with no transfer of a copy, is not conveying.
|
||||
|
||||
An interactive user interface displays "Appropriate Legal Notices"
|
||||
to the extent that it includes a convenient and prominently visible
|
||||
feature that (1) displays an appropriate copyright notice, and (2)
|
||||
tells the user that there is no warranty for the work (except to the
|
||||
extent that warranties are provided), that licensees may convey the
|
||||
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|
||||
the interface presents a list of user commands or options, such as a
|
||||
menu, a prominent item in the list meets this criterion.
|
||||
|
||||
1. Source Code.
|
||||
|
||||
The "source code" for a work means the preferred form of the work
|
||||
for making modifications to it. "Object code" means any non-source
|
||||
form of a work.
|
||||
|
||||
A "Standard Interface" means an interface that either is an official
|
||||
standard defined by a recognized standards body, or, in the case of
|
||||
interfaces specified for a particular programming language, one that
|
||||
is widely used among developers working in that language.
|
||||
|
||||
The "System Libraries" of an executable work include anything, other
|
||||
than the work as a whole, that (a) is included in the normal form of
|
||||
packaging a Major Component, but which is not part of that Major
|
||||
Component, and (b) serves only to enable use of the work with that
|
||||
Major Component, or to implement a Standard Interface for which an
|
||||
implementation is available to the public in source code form. A
|
||||
"Major Component", in this context, means a major essential component
|
||||
(kernel, window system, and so on) of the specific operating system
|
||||
(if any) on which the executable work runs, or a compiler used to
|
||||
produce the work, or an object code interpreter used to run it.
|
||||
|
||||
The "Corresponding Source" for a work in object code form means all
|
||||
the source code needed to generate, install, and (for an executable
|
||||
work) run the object code and to modify the work, including scripts to
|
||||
control those activities. However, it does not include the work's
|
||||
System Libraries, or general-purpose tools or generally available free
|
||||
programs which are used unmodified in performing those activities but
|
||||
which are not part of the work. For example, Corresponding Source
|
||||
includes interface definition files associated with source files for
|
||||
the work, and the source code for shared libraries and dynamically
|
||||
linked subprograms that the work is specifically designed to require,
|
||||
such as by intimate data communication or control flow between those
|
||||
subprograms and other parts of the work.
|
||||
|
||||
The Corresponding Source need not include anything that users
|
||||
can regenerate automatically from other parts of the Corresponding
|
||||
Source.
|
||||
|
||||
The Corresponding Source for a work in source code form is that
|
||||
same work.
|
||||
|
||||
2. Basic Permissions.
|
||||
|
||||
All rights granted under this License are granted for the term of
|
||||
copyright on the Program, and are irrevocable provided the stated
|
||||
conditions are met. This License explicitly affirms your unlimited
|
||||
permission to run the unmodified Program. The output from running a
|
||||
covered work is covered by this License only if the output, given its
|
||||
content, constitutes a covered work. This License acknowledges your
|
||||
rights of fair use or other equivalent, as provided by copyright law.
|
||||
|
||||
You may make, run and propagate covered works that you do not
|
||||
convey, without conditions so long as your license otherwise remains
|
||||
in force. You may convey covered works to others for the sole purpose
|
||||
of having them make modifications exclusively for you, or provide you
|
||||
with facilities for running those works, provided that you comply with
|
||||
the terms of this License in conveying all material for which you do
|
||||
not control copyright. Those thus making or running the covered works
|
||||
for you must do so exclusively on your behalf, under your direction
|
||||
and control, on terms that prohibit them from making any copies of
|
||||
your copyrighted material outside their relationship with you.
|
||||
|
||||
Conveying under any other circumstances is permitted solely under
|
||||
the conditions stated below. Sublicensing is not allowed; section 10
|
||||
makes it unnecessary.
|
||||
|
||||
3. Protecting Users' Legal Rights From Anti-Circumvention Law.
|
||||
|
||||
No covered work shall be deemed part of an effective technological
|
||||
measure under any applicable law fulfilling obligations under article
|
||||
11 of the WIPO copyright treaty adopted on 20 December 1996, or
|
||||
similar laws prohibiting or restricting circumvention of such
|
||||
measures.
|
||||
|
||||
When you convey a covered work, you waive any legal power to forbid
|
||||
circumvention of technological measures to the extent such circumvention
|
||||
is effected by exercising rights under this License with respect to
|
||||
the covered work, and you disclaim any intention to limit operation or
|
||||
modification of the work as a means of enforcing, against the work's
|
||||
users, your or third parties' legal rights to forbid circumvention of
|
||||
technological measures.
|
||||
|
||||
4. Conveying Verbatim Copies.
|
||||
|
||||
You may convey verbatim copies of the Program's source code as you
|
||||
receive it, in any medium, provided that you conspicuously and
|
||||
appropriately publish on each copy an appropriate copyright notice;
|
||||
keep intact all notices stating that this License and any
|
||||
non-permissive terms added in accord with section 7 apply to the code;
|
||||
keep intact all notices of the absence of any warranty; and give all
|
||||
recipients a copy of this License along with the Program.
|
||||
|
||||
You may charge any price or no price for each copy that you convey,
|
||||
and you may offer support or warranty protection for a fee.
|
||||
|
||||
5. Conveying Modified Source Versions.
|
||||
|
||||
You may convey a work based on the Program, or the modifications to
|
||||
produce it from the Program, in the form of source code under the
|
||||
terms of section 4, provided that you also meet all of these conditions:
|
||||
|
||||
a) The work must carry prominent notices stating that you modified
|
||||
it, and giving a relevant date.
|
||||
|
||||
b) The work must carry prominent notices stating that it is
|
||||
released under this License and any conditions added under section
|
||||
7. This requirement modifies the requirement in section 4 to
|
||||
"keep intact all notices".
|
||||
|
||||
c) You must license the entire work, as a whole, under this
|
||||
License to anyone who comes into possession of a copy. This
|
||||
License will therefore apply, along with any applicable section 7
|
||||
additional terms, to the whole of the work, and all its parts,
|
||||
regardless of how they are packaged. This License gives no
|
||||
permission to license the work in any other way, but it does not
|
||||
invalidate such permission if you have separately received it.
|
||||
|
||||
d) If the work has interactive user interfaces, each must display
|
||||
Appropriate Legal Notices; however, if the Program has interactive
|
||||
interfaces that do not display Appropriate Legal Notices, your
|
||||
work need not make them do so.
|
||||
|
||||
A compilation of a covered work with other separate and independent
|
||||
works, which are not by their nature extensions of the covered work,
|
||||
and which are not combined with it such as to form a larger program,
|
||||
in or on a volume of a storage or distribution medium, is called an
|
||||
"aggregate" if the compilation and its resulting copyright are not
|
||||
used to limit the access or legal rights of the compilation's users
|
||||
beyond what the individual works permit. Inclusion of a covered work
|
||||
in an aggregate does not cause this License to apply to the other
|
||||
parts of the aggregate.
|
||||
|
||||
6. Conveying Non-Source Forms.
|
||||
|
||||
You may convey a covered work in object code form under the terms
|
||||
of sections 4 and 5, provided that you also convey the
|
||||
machine-readable Corresponding Source under the terms of this License,
|
||||
in one of these ways:
|
||||
|
||||
a) Convey the object code in, or embodied in, a physical product
|
||||
(including a physical distribution medium), accompanied by the
|
||||
Corresponding Source fixed on a durable physical medium
|
||||
customarily used for software interchange.
|
||||
|
||||
b) Convey the object code in, or embodied in, a physical product
|
||||
(including a physical distribution medium), accompanied by a
|
||||
written offer, valid for at least three years and valid for as
|
||||
long as you offer spare parts or customer support for that product
|
||||
model, to give anyone who possesses the object code either (1) a
|
||||
copy of the Corresponding Source for all the software in the
|
||||
product that is covered by this License, on a durable physical
|
||||
medium customarily used for software interchange, for a price no
|
||||
more than your reasonable cost of physically performing this
|
||||
conveying of source, or (2) access to copy the
|
||||
Corresponding Source from a network server at no charge.
|
||||
|
||||
c) Convey individual copies of the object code with a copy of the
|
||||
written offer to provide the Corresponding Source. This
|
||||
alternative is allowed only occasionally and noncommercially, and
|
||||
only if you received the object code with such an offer, in accord
|
||||
with subsection 6b.
|
||||
|
||||
d) Convey the object code by offering access from a designated
|
||||
place (gratis or for a charge), and offer equivalent access to the
|
||||
Corresponding Source in the same way through the same place at no
|
||||
further charge. You need not require recipients to copy the
|
||||
Corresponding Source along with the object code. If the place to
|
||||
copy the object code is a network server, the Corresponding Source
|
||||
may be on a different server (operated by you or a third party)
|
||||
that supports equivalent copying facilities, provided you maintain
|
||||
clear directions next to the object code saying where to find the
|
||||
Corresponding Source. Regardless of what server hosts the
|
||||
Corresponding Source, you remain obligated to ensure that it is
|
||||
available for as long as needed to satisfy these requirements.
|
||||
|
||||
e) Convey the object code using peer-to-peer transmission, provided
|
||||
you inform other peers where the object code and Corresponding
|
||||
Source of the work are being offered to the general public at no
|
||||
charge under subsection 6d.
|
||||
|
||||
A separable portion of the object code, whose source code is excluded
|
||||
from the Corresponding Source as a System Library, need not be
|
||||
included in conveying the object code work.
|
||||
|
||||
A "User Product" is either (1) a "consumer product", which means any
|
||||
tangible personal property which is normally used for personal, family,
|
||||
or household purposes, or (2) anything designed or sold for incorporation
|
||||
into a dwelling. In determining whether a product is a consumer product,
|
||||
doubtful cases shall be resolved in favor of coverage. For a particular
|
||||
product received by a particular user, "normally used" refers to a
|
||||
typical or common use of that class of product, regardless of the status
|
||||
of the particular user or of the way in which the particular user
|
||||
actually uses, or expects or is expected to use, the product. A product
|
||||
is a consumer product regardless of whether the product has substantial
|
||||
commercial, industrial or non-consumer uses, unless such uses represent
|
||||
the only significant mode of use of the product.
|
||||
|
||||
"Installation Information" for a User Product means any methods,
|
||||
procedures, authorization keys, or other information required to install
|
||||
and execute modified versions of a covered work in that User Product from
|
||||
a modified version of its Corresponding Source. The information must
|
||||
suffice to ensure that the continued functioning of the modified object
|
||||
code is in no case prevented or interfered with solely because
|
||||
modification has been made.
|
||||
|
||||
If you convey an object code work under this section in, or with, or
|
||||
specifically for use in, a User Product, and the conveying occurs as
|
||||
part of a transaction in which the right of possession and use of the
|
||||
User Product is transferred to the recipient in perpetuity or for a
|
||||
fixed term (regardless of how the transaction is characterized), the
|
||||
Corresponding Source conveyed under this section must be accompanied
|
||||
by the Installation Information. But this requirement does not apply
|
||||
if neither you nor any third party retains the ability to install
|
||||
modified object code on the User Product (for example, the work has
|
||||
been installed in ROM).
|
||||
|
||||
The requirement to provide Installation Information does not include a
|
||||
requirement to continue to provide support service, warranty, or updates
|
||||
for a work that has been modified or installed by the recipient, or for
|
||||
the User Product in which it has been modified or installed. Access to a
|
||||
network may be denied when the modification itself materially and
|
||||
adversely affects the operation of the network or violates the rules and
|
||||
protocols for communication across the network.
|
||||
|
||||
Corresponding Source conveyed, and Installation Information provided,
|
||||
in accord with this section must be in a format that is publicly
|
||||
documented (and with an implementation available to the public in
|
||||
source code form), and must require no special password or key for
|
||||
unpacking, reading or copying.
|
||||
|
||||
7. Additional Terms.
|
||||
|
||||
"Additional permissions" are terms that supplement the terms of this
|
||||
License by making exceptions from one or more of its conditions.
|
||||
Additional permissions that are applicable to the entire Program shall
|
||||
be treated as though they were included in this License, to the extent
|
||||
that they are valid under applicable law. If additional permissions
|
||||
apply only to part of the Program, that part may be used separately
|
||||
under those permissions, but the entire Program remains governed by
|
||||
this License without regard to the additional permissions.
|
||||
|
||||
When you convey a copy of a covered work, you may at your option
|
||||
remove any additional permissions from that copy, or from any part of
|
||||
it. (Additional permissions may be written to require their own
|
||||
removal in certain cases when you modify the work.) You may place
|
||||
additional permissions on material, added by you to a covered work,
|
||||
for which you have or can give appropriate copyright permission.
|
||||
|
||||
Notwithstanding any other provision of this License, for material you
|
||||
add to a covered work, you may (if authorized by the copyright holders of
|
||||
that material) supplement the terms of this License with terms:
|
||||
|
||||
a) Disclaiming warranty or limiting liability differently from the
|
||||
terms of sections 15 and 16 of this License; or
|
||||
|
||||
b) Requiring preservation of specified reasonable legal notices or
|
||||
author attributions in that material or in the Appropriate Legal
|
||||
Notices displayed by works containing it; or
|
||||
|
||||
c) Prohibiting misrepresentation of the origin of that material, or
|
||||
requiring that modified versions of such material be marked in
|
||||
reasonable ways as different from the original version; or
|
||||
|
||||
d) Limiting the use for publicity purposes of names of licensors or
|
||||
authors of the material; or
|
||||
|
||||
e) Declining to grant rights under trademark law for use of some
|
||||
trade names, trademarks, or service marks; or
|
||||
|
||||
f) Requiring indemnification of licensors and authors of that
|
||||
material by anyone who conveys the material (or modified versions of
|
||||
it) with contractual assumptions of liability to the recipient, for
|
||||
any liability that these contractual assumptions directly impose on
|
||||
those licensors and authors.
|
||||
|
||||
All other non-permissive additional terms are considered "further
|
||||
restrictions" within the meaning of section 10. If the Program as you
|
||||
received it, or any part of it, contains a notice stating that it is
|
||||
governed by this License along with a term that is a further
|
||||
restriction, you may remove that term. If a license document contains
|
||||
a further restriction but permits relicensing or conveying under this
|
||||
License, you may add to a covered work material governed by the terms
|
||||
of that license document, provided that the further restriction does
|
||||
not survive such relicensing or conveying.
|
||||
|
||||
If you add terms to a covered work in accord with this section, you
|
||||
must place, in the relevant source files, a statement of the
|
||||
additional terms that apply to those files, or a notice indicating
|
||||
where to find the applicable terms.
|
||||
|
||||
Additional terms, permissive or non-permissive, may be stated in the
|
||||
form of a separately written license, or stated as exceptions;
|
||||
the above requirements apply either way.
|
||||
|
||||
8. Termination.
|
||||
|
||||
You may not propagate or modify a covered work except as expressly
|
||||
provided under this License. Any attempt otherwise to propagate or
|
||||
modify it is void, and will automatically terminate your rights under
|
||||
this License (including any patent licenses granted under the third
|
||||
paragraph of section 11).
|
||||
|
||||
However, if you cease all violation of this License, then your
|
||||
license from a particular copyright holder is reinstated (a)
|
||||
provisionally, unless and until the copyright holder explicitly and
|
||||
finally terminates your license, and (b) permanently, if the copyright
|
||||
holder fails to notify you of the violation by some reasonable means
|
||||
prior to 60 days after the cessation.
|
||||
|
||||
Moreover, your license from a particular copyright holder is
|
||||
reinstated permanently if the copyright holder notifies you of the
|
||||
violation by some reasonable means, this is the first time you have
|
||||
received notice of violation of this License (for any work) from that
|
||||
copyright holder, and you cure the violation prior to 30 days after
|
||||
your receipt of the notice.
|
||||
|
||||
Termination of your rights under this section does not terminate the
|
||||
licenses of parties who have received copies or rights from you under
|
||||
this License. If your rights have been terminated and not permanently
|
||||
reinstated, you do not qualify to receive new licenses for the same
|
||||
material under section 10.
|
||||
|
||||
9. Acceptance Not Required for Having Copies.
|
||||
|
||||
You are not required to accept this License in order to receive or
|
||||
run a copy of the Program. Ancillary propagation of a covered work
|
||||
occurring solely as a consequence of using peer-to-peer transmission
|
||||
to receive a copy likewise does not require acceptance. However,
|
||||
nothing other than this License grants you permission to propagate or
|
||||
modify any covered work. These actions infringe copyright if you do
|
||||
not accept this License. Therefore, by modifying or propagating a
|
||||
covered work, you indicate your acceptance of this License to do so.
|
||||
|
||||
10. Automatic Licensing of Downstream Recipients.
|
||||
|
||||
Each time you convey a covered work, the recipient automatically
|
||||
receives a license from the original licensors, to run, modify and
|
||||
propagate that work, subject to this License. You are not responsible
|
||||
for enforcing compliance by third parties with this License.
|
||||
|
||||
An "entity transaction" is a transaction transferring control of an
|
||||
organization, or substantially all assets of one, or subdividing an
|
||||
organization, or merging organizations. If propagation of a covered
|
||||
work results from an entity transaction, each party to that
|
||||
transaction who receives a copy of the work also receives whatever
|
||||
licenses to the work the party's predecessor in interest had or could
|
||||
give under the previous paragraph, plus a right to possession of the
|
||||
Corresponding Source of the work from the predecessor in interest, if
|
||||
the predecessor has it or can get it with reasonable efforts.
|
||||
|
||||
You may not impose any further restrictions on the exercise of the
|
||||
rights granted or affirmed under this License. For example, you may
|
||||
not impose a license fee, royalty, or other charge for exercise of
|
||||
rights granted under this License, and you may not initiate litigation
|
||||
(including a cross-claim or counterclaim in a lawsuit) alleging that
|
||||
any patent claim is infringed by making, using, selling, offering for
|
||||
sale, or importing the Program or any portion of it.
|
||||
|
||||
11. Patents.
|
||||
|
||||
A "contributor" is a copyright holder who authorizes use under this
|
||||
License of the Program or a work on which the Program is based. The
|
||||
work thus licensed is called the contributor's "contributor version".
|
||||
|
||||
A contributor's "essential patent claims" are all patent claims
|
||||
owned or controlled by the contributor, whether already acquired or
|
||||
hereafter acquired, that would be infringed by some manner, permitted
|
||||
by this License, of making, using, or selling its contributor version,
|
||||
but do not include claims that would be infringed only as a
|
||||
consequence of further modification of the contributor version. For
|
||||
purposes of this definition, "control" includes the right to grant
|
||||
patent sublicenses in a manner consistent with the requirements of
|
||||
this License.
|
||||
|
||||
Each contributor grants you a non-exclusive, worldwide, royalty-free
|
||||
patent license under the contributor's essential patent claims, to
|
||||
make, use, sell, offer for sale, import and otherwise run, modify and
|
||||
propagate the contents of its contributor version.
|
||||
|
||||
In the following three paragraphs, a "patent license" is any express
|
||||
agreement or commitment, however denominated, not to enforce a patent
|
||||
(such as an express permission to practice a patent or covenant not to
|
||||
sue for patent infringement). To "grant" such a patent license to a
|
||||
party means to make such an agreement or commitment not to enforce a
|
||||
patent against the party.
|
||||
|
||||
If you convey a covered work, knowingly relying on a patent license,
|
||||
and the Corresponding Source of the work is not available for anyone
|
||||
to copy, free of charge and under the terms of this License, through a
|
||||
publicly available network server or other readily accessible means,
|
||||
then you must either (1) cause the Corresponding Source to be so
|
||||
available, or (2) arrange to deprive yourself of the benefit of the
|
||||
patent license for this particular work, or (3) arrange, in a manner
|
||||
consistent with the requirements of this License, to extend the patent
|
||||
license to downstream recipients. "Knowingly relying" means you have
|
||||
actual knowledge that, but for the patent license, your conveying the
|
||||
covered work in a country, or your recipient's use of the covered work
|
||||
in a country, would infringe one or more identifiable patents in that
|
||||
country that you have reason to believe are valid.
|
||||
|
||||
If, pursuant to or in connection with a single transaction or
|
||||
arrangement, you convey, or propagate by procuring conveyance of, a
|
||||
covered work, and grant a patent license to some of the parties
|
||||
receiving the covered work authorizing them to use, propagate, modify
|
||||
or convey a specific copy of the covered work, then the patent license
|
||||
you grant is automatically extended to all recipients of the covered
|
||||
work and works based on it.
|
||||
|
||||
A patent license is "discriminatory" if it does not include within
|
||||
the scope of its coverage, prohibits the exercise of, or is
|
||||
conditioned on the non-exercise of one or more of the rights that are
|
||||
specifically granted under this License. You may not convey a covered
|
||||
work if you are a party to an arrangement with a third party that is
|
||||
in the business of distributing software, under which you make payment
|
||||
to the third party based on the extent of your activity of conveying
|
||||
the work, and under which the third party grants, to any of the
|
||||
parties who would receive the covered work from you, a discriminatory
|
||||
patent license (a) in connection with copies of the covered work
|
||||
conveyed by you (or copies made from those copies), or (b) primarily
|
||||
for and in connection with specific products or compilations that
|
||||
contain the covered work, unless you entered into that arrangement,
|
||||
or that patent license was granted, prior to 28 March 2007.
|
||||
|
||||
Nothing in this License shall be construed as excluding or limiting
|
||||
any implied license or other defenses to infringement that may
|
||||
otherwise be available to you under applicable patent law.
|
||||
|
||||
12. No Surrender of Others' Freedom.
|
||||
|
||||
If conditions are imposed on you (whether by court order, agreement or
|
||||
otherwise) that contradict the conditions of this License, they do not
|
||||
excuse you from the conditions of this License. If you cannot convey a
|
||||
covered work so as to satisfy simultaneously your obligations under this
|
||||
License and any other pertinent obligations, then as a consequence you may
|
||||
not convey it at all. For example, if you agree to terms that obligate you
|
||||
to collect a royalty for further conveying from those to whom you convey
|
||||
the Program, the only way you could satisfy both those terms and this
|
||||
License would be to refrain entirely from conveying the Program.
|
||||
|
||||
13. 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:
|
||||
|
||||
{project} Copyright (C) {year} {fullname}
|
||||
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>.
|
||||
|
||||
@ -1,84 +0,0 @@
|
||||
package main
|
||||
|
||||
import (
|
||||
"crypto/md5"
|
||||
"encoding/binary"
|
||||
"encoding/hex"
|
||||
"github.com/miekg/dns"
|
||||
"log"
|
||||
"sync"
|
||||
"time"
|
||||
)
|
||||
|
||||
type cache struct {
|
||||
m map[string]*elem
|
||||
lock *sync.RWMutex
|
||||
ttl int64
|
||||
max int
|
||||
}
|
||||
|
||||
type elem struct {
|
||||
m *dns.Msg
|
||||
t int64
|
||||
}
|
||||
|
||||
func newCache(max int, ttl int64) *cache {
|
||||
return &cache{
|
||||
max: max,
|
||||
ttl: ttl,
|
||||
m: map[string]*elem{},
|
||||
lock: new(sync.RWMutex),
|
||||
}
|
||||
}
|
||||
|
||||
func key(m *dns.Msg) string {
|
||||
d := m.Question[0].Name
|
||||
b := []byte(d)
|
||||
b1 := make([]byte, 4)
|
||||
binary.BigEndian.PutUint16(b1[0:], m.Question[0].Qclass)
|
||||
binary.BigEndian.PutUint16(b1[2:], m.Question[0].Qtype)
|
||||
b = append(b, b1...)
|
||||
h := md5.New()
|
||||
h.Write(b)
|
||||
s1 := hex.EncodeToString(h.Sum(nil))
|
||||
return s1
|
||||
}
|
||||
|
||||
func (c *cache) get(m *dns.Msg) *dns.Msg {
|
||||
c.lock.RLock()
|
||||
defer c.lock.RUnlock()
|
||||
k := key(m)
|
||||
if m1, ok := c.m[k]; ok {
|
||||
t := time.Now().Unix()
|
||||
if t < m1.t {
|
||||
return m1.m
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (c *cache) set(m *dns.Msg) {
|
||||
c.lock.Lock()
|
||||
defer c.lock.Unlock()
|
||||
|
||||
if len(c.m) >= c.max {
|
||||
log.Printf("clean the old cache")
|
||||
c.cleanOld()
|
||||
}
|
||||
|
||||
k := key(m)
|
||||
c.m[k] = &elem{
|
||||
m.Copy(),
|
||||
time.Now().Unix() + c.ttl,
|
||||
}
|
||||
}
|
||||
|
||||
// must hold the write lock
|
||||
func (c *cache) cleanOld() {
|
||||
t1 := time.Now().Unix()
|
||||
for k, v := range c.m {
|
||||
if v.t >= t1 {
|
||||
delete(c.m, k)
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -1,58 +0,0 @@
|
||||
package main
|
||||
|
||||
import (
|
||||
"github.com/miekg/dns"
|
||||
"testing"
|
||||
"time"
|
||||
)
|
||||
|
||||
func TestCache(t *testing.T) {
|
||||
c := newCache(5, 2)
|
||||
|
||||
tests := map[string]uint16{
|
||||
"www.google.com": dns.TypeA,
|
||||
"www.google.com.hk": dns.TypeA,
|
||||
"www.google.com.sg": dns.TypeA,
|
||||
"www.google.com.it": dns.TypeA,
|
||||
"www.google.com.de": dns.TypeA,
|
||||
"www.google.com.cn": dns.TypeA,
|
||||
}
|
||||
|
||||
var datas []*dns.Msg
|
||||
|
||||
for k, v := range tests {
|
||||
m1 := new(dns.Msg)
|
||||
m1.SetQuestion(k, v)
|
||||
datas = append(datas, m1)
|
||||
}
|
||||
|
||||
for i := 0; i < 3; i++ {
|
||||
c.set(datas[i])
|
||||
}
|
||||
|
||||
for i := 0; i < 3; i++ {
|
||||
m2 := c.get(datas[i])
|
||||
if m2 == nil {
|
||||
t.Errorf("store cache failed")
|
||||
}
|
||||
if m2.Question[0].Name != datas[i].Question[0].Name {
|
||||
t.Errorf("cache error")
|
||||
}
|
||||
}
|
||||
|
||||
time.Sleep(3 * time.Second)
|
||||
for i := 0; i < 3; i++ {
|
||||
m2 := c.get(datas[i])
|
||||
if m2 != nil {
|
||||
t.Errorf("cache not expired")
|
||||
}
|
||||
}
|
||||
|
||||
for i := 3; i < 6; i++ {
|
||||
c.set(datas[i])
|
||||
}
|
||||
|
||||
if len(c.m) > len(datas) {
|
||||
t.Errorf("old cache not purged")
|
||||
}
|
||||
}
|
||||
@ -1,144 +0,0 @@
|
||||
package main
|
||||
|
||||
import (
|
||||
"bufio"
|
||||
"encoding/json"
|
||||
"fmt"
|
||||
"io/ioutil"
|
||||
"os"
|
||||
"strings"
|
||||
)
|
||||
|
||||
type item map[string]int
|
||||
|
||||
func (i item) has(s string) bool {
|
||||
if _, ok := i[s]; ok {
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
func (it item) match(s string) bool {
|
||||
iis := strings.Split(s, ".")
|
||||
for i := 0; i < len(iis); i++ {
|
||||
ii := strings.Join(iis[i:], ".")
|
||||
if _, ok := it[ii]; ok {
|
||||
return true
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
type addr struct {
|
||||
network string
|
||||
addr string
|
||||
}
|
||||
|
||||
// Rule present a forward rule
|
||||
type Rule struct {
|
||||
DomainlistFile string `json:"domain_list_file"`
|
||||
domains item
|
||||
ServersString []string `json:"servers"`
|
||||
servers []addr
|
||||
}
|
||||
|
||||
type cfg struct {
|
||||
EnableCache bool `json:"enable_cache"`
|
||||
Listen []string `json:"listen"`
|
||||
User string `json:"user"`
|
||||
Group string `json:"group"`
|
||||
listen []addr
|
||||
ServersString []string `json:"default_servers"`
|
||||
servers []addr
|
||||
Timeout int `json:"timeout"`
|
||||
TTL int `json:"ttl"`
|
||||
BlacklistFiles []string `json:"blacklist_ips"`
|
||||
blacklistIps item
|
||||
Rules []Rule `json:"rules"`
|
||||
}
|
||||
|
||||
func parseCfg(fn string) (*cfg, error) {
|
||||
c := cfg{}
|
||||
buf, err := ioutil.ReadFile(fn)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
err = json.Unmarshal(buf, &c)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
var adr []addr
|
||||
for _, a := range c.ServersString {
|
||||
a1 := parseAddr(a)
|
||||
if a1.network != "" {
|
||||
adr = append(adr, a1)
|
||||
}
|
||||
}
|
||||
c.servers = adr
|
||||
|
||||
var ll []addr
|
||||
for _, a := range c.Listen {
|
||||
a1 := parseAddr(a)
|
||||
if a1.network != "" {
|
||||
ll = append(ll, a1)
|
||||
}
|
||||
}
|
||||
c.listen = ll
|
||||
|
||||
l1 := make(item)
|
||||
for _, a := range c.BlacklistFiles {
|
||||
parseFile(a, &l1)
|
||||
}
|
||||
c.blacklistIps = l1
|
||||
|
||||
for i, r := range c.Rules {
|
||||
l2 := make(item)
|
||||
parseFile(r.DomainlistFile, &l2)
|
||||
c.Rules[i].domains = l2
|
||||
|
||||
var adr1 []addr
|
||||
for _, a := range r.ServersString {
|
||||
a1 := parseAddr(a)
|
||||
if a1.network != "" {
|
||||
adr1 = append(adr1, a1)
|
||||
}
|
||||
}
|
||||
c.Rules[i].servers = adr1
|
||||
}
|
||||
return &c, nil
|
||||
}
|
||||
|
||||
func parseAddr(addr1 string) addr {
|
||||
a := strings.SplitN(addr1, ":", 2)
|
||||
if len(a) != 2 {
|
||||
fmt.Printf("addr error")
|
||||
return addr{"", ""}
|
||||
}
|
||||
return addr{a[0], a[1]}
|
||||
}
|
||||
|
||||
func parseFile(fn string, i *item) {
|
||||
ii := *i
|
||||
fp, err := os.Open(fn)
|
||||
if err != nil {
|
||||
fmt.Printf("open failed: %s\n", err)
|
||||
return
|
||||
}
|
||||
defer fp.Close()
|
||||
r := bufio.NewReader(fp)
|
||||
for {
|
||||
line, err := r.ReadString('\n')
|
||||
l := strings.Trim(line, " \r\n\t")
|
||||
if err != nil {
|
||||
if l != "" && l[0] != '#' {
|
||||
ii[l] = 1
|
||||
}
|
||||
break
|
||||
}
|
||||
if l == "" || l[0] == '#' {
|
||||
continue
|
||||
}
|
||||
ii[l] = 1
|
||||
}
|
||||
}
|
||||
@ -1,19 +0,0 @@
|
||||
package main
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"os"
|
||||
"testing"
|
||||
)
|
||||
|
||||
func TestCfg(t *testing.T) {
|
||||
os.Chdir("example_config")
|
||||
c, err := parseCfg("config.json")
|
||||
if err != nil {
|
||||
t.Fatalf("%s\n", err)
|
||||
}
|
||||
|
||||
fmt.Printf("%+v\n", c)
|
||||
fmt.Printf("%v\n", c.Rules[0].domains.match("google.com"))
|
||||
fmt.Printf("%v\n", c.Rules[0].domains.match("www.ip.cn"))
|
||||
}
|
||||
@ -0,0 +1,59 @@
|
||||
package main
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"context"
|
||||
"fmt"
|
||||
"io"
|
||||
"net/http"
|
||||
"time"
|
||||
|
||||
"github.com/miekg/dns"
|
||||
)
|
||||
|
||||
type httpclient struct {
|
||||
Net string
|
||||
Timeout time.Duration
|
||||
HTTPClient *http.Client
|
||||
}
|
||||
|
||||
func (c *httpclient) Exchange(msg *dns.Msg, upstream string) (*dns.Msg, int, error) {
|
||||
data, err := msg.Pack()
|
||||
if err != nil {
|
||||
return nil, 0, err
|
||||
}
|
||||
|
||||
req, err := http.NewRequest("POST", upstream, bytes.NewReader(data))
|
||||
if err != nil {
|
||||
return nil, 0, err
|
||||
}
|
||||
|
||||
req.Header.Set("Content-Type", dnsMsgType)
|
||||
|
||||
ctx, cancel := context.WithTimeout(context.Background(), c.Timeout)
|
||||
defer cancel()
|
||||
|
||||
req = req.WithContext(ctx)
|
||||
|
||||
resp, err := c.HTTPClient.Do(req)
|
||||
if err != nil {
|
||||
return nil, 0, err
|
||||
}
|
||||
defer resp.Body.Close()
|
||||
|
||||
if resp.StatusCode != http.StatusOK {
|
||||
return nil, 0, fmt.Errorf("http error %d", resp.StatusCode)
|
||||
}
|
||||
|
||||
data, err = io.ReadAll(resp.Body)
|
||||
if err != nil {
|
||||
return nil, 0, err
|
||||
}
|
||||
|
||||
m := new(dns.Msg)
|
||||
if err = m.Unpack(data); err != nil {
|
||||
return nil, 0, err
|
||||
}
|
||||
|
||||
return m, 0, nil
|
||||
}
|
||||
@ -0,0 +1,33 @@
|
||||
package main
|
||||
|
||||
import (
|
||||
"os"
|
||||
|
||||
"github.com/go-yaml/yaml"
|
||||
)
|
||||
|
||||
type conf struct {
|
||||
UpstreamServers []string `yaml:"upstream_servers"`
|
||||
BootstrapServers []string `yaml:"bootstrap_servers"`
|
||||
Listen []listen `yaml:"listen"`
|
||||
UpstreamTimeout int `yaml:"upstream_timeout"`
|
||||
UpstreamInsecure bool `yaml:"upstream_insecure"`
|
||||
}
|
||||
|
||||
type listen struct {
|
||||
Addr string `yaml:"addr"`
|
||||
Cert string `yaml:"cert"`
|
||||
Key string `yaml:"key"`
|
||||
}
|
||||
|
||||
func loadConfig(f string) (*conf, error) {
|
||||
data, err := os.ReadFile(f)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
var c conf
|
||||
if err := yaml.Unmarshal(data, &c); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return &c, nil
|
||||
}
|
||||
@ -0,0 +1,40 @@
|
||||
# upstream servers
|
||||
# support DoH(DNS over https/http2), tcp, udp and tls(dns over tls)
|
||||
upstream_servers:
|
||||
- https://cloudflare-dns.com/dns-query
|
||||
- tcp://1.0.0.1:53
|
||||
- udp://1.0.0.1:53
|
||||
- tls://cloudflare-dns:853
|
||||
|
||||
# bootstrap dns server,
|
||||
# this used to resolve the domain name used in Doh and TLS,
|
||||
# not needed if you don't use DoH and tls
|
||||
bootstrap_servers:
|
||||
- tcp://1.0.0.1:53
|
||||
- udp://1.0.0.1:53
|
||||
|
||||
# listen ports
|
||||
listen:
|
||||
-
|
||||
addr: tcp://0.0.0.0:1053
|
||||
cert:
|
||||
key:
|
||||
-
|
||||
addr: udp://0.0.0.0:1053
|
||||
cert:
|
||||
key:
|
||||
-
|
||||
addr: https://0.0.0.0:1054/dns-query
|
||||
cert: server.crt
|
||||
key: server.key
|
||||
-
|
||||
addr: tls://0.0.0.1:1055
|
||||
cert: server.crt
|
||||
key: server.key
|
||||
|
||||
# timeout for upstream server, second
|
||||
upstream_timeout: 3
|
||||
|
||||
# check upstream certificate or not
|
||||
# if you use self signed certificate, set this to true
|
||||
upstream_insecure: false
|
||||
@ -1,20 +0,0 @@
|
||||
{
|
||||
"listen":["tcp:0.0.0.0:8053","udp::8053"],
|
||||
"default_servers":["tcp:208.67.222.222:53","tcp:8.8.8.8:53"],
|
||||
"user":"nobody",
|
||||
"group":"nogroup",
|
||||
"ttl":3600,
|
||||
"timeout":1,
|
||||
"enable_cache":false,
|
||||
"blacklist_ips":["ip.txt"],
|
||||
"rules":[
|
||||
{
|
||||
"domain_list_file":"domain1.txt",
|
||||
"servers":["tcp:4.2.2.2:53"]
|
||||
},
|
||||
{
|
||||
"domain_list_file":"domain2.txt",
|
||||
"servers":["tcp:8.8.4.4:53","https:74.125.200.100"]
|
||||
}
|
||||
]
|
||||
}
|
||||
@ -1,4 +0,0 @@
|
||||
ww.goole.com
|
||||
ip.cn
|
||||
taobao.com
|
||||
a.cn
|
||||
@ -1,3 +0,0 @@
|
||||
a.com
|
||||
b.org
|
||||
c.net
|
||||
@ -1,2 +0,0 @@
|
||||
1.2.3.4
|
||||
2.21.2.2
|
||||
@ -0,0 +1,22 @@
|
||||
module github.com/fangdingjun/gdns
|
||||
|
||||
go 1.17
|
||||
|
||||
require (
|
||||
github.com/fangdingjun/go-log/v5 v5.0.0
|
||||
github.com/fangdingjun/protolistener v0.0.0-20210804081554-626e6590d6e7
|
||||
github.com/go-yaml/yaml v2.1.0+incompatible
|
||||
github.com/miekg/dns v1.1.43
|
||||
golang.org/x/net v0.0.0-20210726213435-c6fcb2dbf985
|
||||
)
|
||||
|
||||
require (
|
||||
github.com/kr/pretty v0.3.0 // indirect
|
||||
github.com/pires/go-proxyproto v0.6.1 // indirect
|
||||
golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97 // indirect
|
||||
golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c // indirect
|
||||
golang.org/x/term v0.0.0-20210615171337-6886f2dfbf5b // indirect
|
||||
golang.org/x/text v0.3.6 // indirect
|
||||
gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
|
||||
gopkg.in/yaml.v2 v2.4.0 // indirect
|
||||
)
|
||||
@ -0,0 +1,51 @@
|
||||
github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
|
||||
github.com/fangdingjun/go-log/v5 v5.0.0 h1:vdh9Bk9C4ZFL6KoO6rII73zQIyaLf7hFdBvucO/ckiE=
|
||||
github.com/fangdingjun/go-log/v5 v5.0.0/go.mod h1:V012Oxo0/pSbccX4OFSp9MJglXwNsZo2ByBBorr7zzM=
|
||||
github.com/fangdingjun/protolistener v0.0.0-20210804081554-626e6590d6e7 h1:z5NlLvUNbGZxQhtUZELvIorAqpDmcIhGQXE5GdO7+5I=
|
||||
github.com/fangdingjun/protolistener v0.0.0-20210804081554-626e6590d6e7/go.mod h1:ljbjhI4fVrT5GwMu1iBhWTZwLJSqsXKwKlGKas5GudM=
|
||||
github.com/go-yaml/yaml v2.1.0+incompatible h1:RYi2hDdss1u4YE7GwixGzWwVo47T8UQwnTLB6vQiq+o=
|
||||
github.com/go-yaml/yaml v2.1.0+incompatible/go.mod h1:w2MrLa16VYP0jy6N7M5kHaCkaLENm+P+Tv+MfurjSw0=
|
||||
github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
|
||||
github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
|
||||
github.com/kr/pretty v0.3.0 h1:WgNl7dwNpEZ6jJ9k1snq4pZsg7DOEN8hP9Xw0Tsjwk0=
|
||||
github.com/kr/pretty v0.3.0/go.mod h1:640gp4NfQd8pI5XOwp5fnNeVWj67G7CFk/SaSQn7NBk=
|
||||
github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
|
||||
github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
|
||||
github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
|
||||
github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
|
||||
github.com/miekg/dns v1.1.43 h1:JKfpVSCB84vrAmHzyrsxB5NAr5kLoMXZArPSw7Qlgyg=
|
||||
github.com/miekg/dns v1.1.43/go.mod h1:+evo5L0630/F6ca/Z9+GAqzhjGyn8/c+TBaOyfEl0V4=
|
||||
github.com/pires/go-proxyproto v0.6.0/go.mod h1:Odh9VFOZJCf9G8cLW5o435Xf1J95Jw9Gw5rnCjcwzAY=
|
||||
github.com/pires/go-proxyproto v0.6.1 h1:EBupykFmo22SDjv4fQVQd2J9NOoLPmyZA/15ldOGkPw=
|
||||
github.com/pires/go-proxyproto v0.6.1/go.mod h1:Odh9VFOZJCf9G8cLW5o435Xf1J95Jw9Gw5rnCjcwzAY=
|
||||
github.com/rogpeppe/go-internal v1.6.1 h1:/FiVV8dS/e+YqF2JvO3yXRFbBLTIuSDkuC7aBOAvL+k=
|
||||
github.com/rogpeppe/go-internal v1.6.1/go.mod h1:xXDCJY+GAPziupqXw64V24skbSoqbTEfhy4qGm1nDQc=
|
||||
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
|
||||
golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97 h1:/UOmuWzQfxxo9UtlXMwuQU8CMgg1eZXqTRwkSQJWKOI=
|
||||
golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
|
||||
golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
|
||||
golang.org/x/net v0.0.0-20210726213435-c6fcb2dbf985 h1:4CSI6oo7cOjJKajidEljs9h+uP0rRZBPPPhcCbj5mw8=
|
||||
golang.org/x/net v0.0.0-20210726213435-c6fcb2dbf985/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
|
||||
golang.org/x/sync v0.0.0-20210220032951-036812b2e83c h1:5KslGYwFpkhGh+Q16bwMP3cOontH8FOep7tGV86Y7SQ=
|
||||
golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
|
||||
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
|
||||
golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||
golang.org/x/sys v0.0.0-20210303074136-134d130e1a04/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||
golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||
golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
|
||||
golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c h1:F1jZWGFhYfh0Ci55sIpILtKKK8p3i2/krTr0H1rg74I=
|
||||
golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
|
||||
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
|
||||
golang.org/x/term v0.0.0-20210615171337-6886f2dfbf5b h1:9zKuko04nR4gjZ4+DNjHqRlAJqbJETHwiNKDqTfOjfE=
|
||||
golang.org/x/term v0.0.0-20210615171337-6886f2dfbf5b/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
|
||||
golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
|
||||
golang.org/x/text v0.3.6 h1:aRYxNxv6iGQlyVaZmk6ZgYEDa+Jg18DxebPSrd6bg1M=
|
||||
golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
|
||||
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
|
||||
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
|
||||
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
|
||||
gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
|
||||
gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
|
||||
gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
|
||||
gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
|
||||
gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
|
||||
@ -1,186 +0,0 @@
|
||||
package main
|
||||
|
||||
import (
|
||||
"crypto/tls"
|
||||
"encoding/json"
|
||||
"fmt"
|
||||
"github.com/miekg/dns"
|
||||
"io/ioutil"
|
||||
"net"
|
||||
"net/http"
|
||||
"net/url"
|
||||
"sync"
|
||||
"time"
|
||||
)
|
||||
|
||||
// ServerAddr is Google dns server ip
|
||||
var ServerAddr = "74.125.200.100"
|
||||
var queryIPApi = "https://www.simicloud.com/media/httpbin/ip"
|
||||
|
||||
// HTTPDns struct
|
||||
type HTTPDns struct {
|
||||
myip string
|
||||
l sync.Mutex
|
||||
}
|
||||
|
||||
func (h *HTTPDns) getMyIP() string {
|
||||
if h.myip != "" {
|
||||
return h.myip
|
||||
}
|
||||
go h.queryMyIP()
|
||||
return ""
|
||||
}
|
||||
|
||||
type ipAPI struct {
|
||||
IP string `json:"origin"`
|
||||
}
|
||||
|
||||
func (h *HTTPDns) queryMyIP() {
|
||||
h.l.Lock()
|
||||
defer h.l.Unlock()
|
||||
if h.myip != "" {
|
||||
//fmt.Printf("myip: %s\n", h.myip)
|
||||
return
|
||||
}
|
||||
//fmt.Println("get ip...")
|
||||
res, err := http.Get(queryIPApi)
|
||||
if err != nil {
|
||||
//fmt.Println(err)
|
||||
return
|
||||
}
|
||||
defer res.Body.Close()
|
||||
d, err := ioutil.ReadAll(res.Body)
|
||||
if err != nil {
|
||||
//fmt.Println(err)
|
||||
return
|
||||
}
|
||||
//fmt.Printf("%s\n", string(d))
|
||||
ip := ipAPI{}
|
||||
err = json.Unmarshal(d, &ip)
|
||||
if err != nil {
|
||||
//fmt.Println(err)
|
||||
return
|
||||
}
|
||||
//fmt.Printf("got: %s\n", ip.Ip)
|
||||
h.myip = ip.IP
|
||||
}
|
||||
|
||||
func (h *HTTPDns) getMyNet() string {
|
||||
ip := h.getMyIP()
|
||||
if ip == "" {
|
||||
return ""
|
||||
}
|
||||
mask := net.IPv4Mask(255, 255, 255, 0)
|
||||
ipByte := net.ParseIP(ip)
|
||||
ipnet := net.IPNet{ipByte.Mask(mask), mask}
|
||||
return ipnet.String()
|
||||
}
|
||||
|
||||
// Exchange send query to server and return the response
|
||||
func (h *HTTPDns) Exchange(m *dns.Msg, addr string) (*dns.Msg, time.Duration, error) {
|
||||
name := m.Question[0].Name
|
||||
t := dns.TypeToString[m.Question[0].Qtype]
|
||||
mynet := h.getMyNet()
|
||||
r, err := query(name, t, mynet, "", addr)
|
||||
if err != nil {
|
||||
return nil, 0, err
|
||||
}
|
||||
|
||||
m1 := new(dns.Msg)
|
||||
|
||||
m1.SetRcode(m, r.Status)
|
||||
for _, rr := range r.Answer {
|
||||
_rr := fmt.Sprintf("%s %d IN %s %s", rr.Name, rr.TTL,
|
||||
dns.TypeToString[uint16(rr.Type)], rr.Data)
|
||||
|
||||
an, err := dns.NewRR(_rr)
|
||||
if err != nil {
|
||||
return nil, 0, err
|
||||
}
|
||||
m1.Answer = append(m1.Answer, an)
|
||||
}
|
||||
m1.Truncated = r.TC
|
||||
m1.RecursionDesired = r.RD
|
||||
m1.RecursionAvailable = r.RA
|
||||
m1.AuthenticatedData = r.AD
|
||||
m1.CheckingDisabled = r.CD
|
||||
return m1, 0, nil
|
||||
|
||||
}
|
||||
|
||||
// DefaultHTTPDnsClient default http dns client
|
||||
var DefaultHTTPDnsClient = &HTTPDns{}
|
||||
|
||||
// Response represent the dns response from server
|
||||
type Response struct {
|
||||
Status int
|
||||
TC bool
|
||||
RD bool
|
||||
RA bool
|
||||
AD bool
|
||||
CD bool
|
||||
Question []RR
|
||||
Answer []RR
|
||||
Additional []RR
|
||||
EDNSClientSubnet string `json:"edns_client_subnet"`
|
||||
Comment string
|
||||
}
|
||||
|
||||
// RR represent the RR record
|
||||
type RR struct {
|
||||
Name string `json:"name"`
|
||||
Type int `json:"type"`
|
||||
TTL int
|
||||
Data string `json:"data"`
|
||||
}
|
||||
|
||||
var httpclient = &http.Client{
|
||||
Timeout: 5 * time.Second,
|
||||
Transport: &http.Transport{
|
||||
TLSClientConfig: &tls.Config{ServerName: "dns.google.com"},
|
||||
TLSHandshakeTimeout: 3 * time.Second,
|
||||
},
|
||||
}
|
||||
|
||||
func query(name, t, ednsClientSubnet, padding, srvAddr string) (*Response, error) {
|
||||
srvaddr := ServerAddr
|
||||
if srvAddr != "" {
|
||||
srvaddr = srvAddr
|
||||
}
|
||||
v := url.Values{}
|
||||
v.Add("name", name)
|
||||
v.Add("type", t)
|
||||
|
||||
if ednsClientSubnet != "" {
|
||||
v.Add("edns_client_subnet", ednsClientSubnet)
|
||||
}
|
||||
|
||||
if padding != "" {
|
||||
v.Add("random_padding", padding)
|
||||
}
|
||||
|
||||
u := fmt.Sprintf("https://%s/resolve?%s", srvaddr, v.Encode())
|
||||
r, _ := http.NewRequest("GET", u, nil)
|
||||
r.Host = "dns.google.com"
|
||||
//r.URL.Host = "dns.google.com"
|
||||
|
||||
res, err := httpclient.Do(r)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
defer res.Body.Close()
|
||||
|
||||
data, err := ioutil.ReadAll(res.Body)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
d := Response{}
|
||||
err = json.Unmarshal(data, &d)
|
||||
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return &d, nil
|
||||
}
|
||||
@ -1,80 +0,0 @@
|
||||
package main
|
||||
|
||||
import (
|
||||
"encoding/json"
|
||||
"fmt"
|
||||
"github.com/miekg/dns"
|
||||
"io/ioutil"
|
||||
"net"
|
||||
"net/http"
|
||||
"testing"
|
||||
"time"
|
||||
)
|
||||
|
||||
// MyIP my ip
|
||||
type MyIP struct {
|
||||
IP string `json:"origin"`
|
||||
}
|
||||
|
||||
func myip() string {
|
||||
res, err := http.Get("https://www.simicloud.com/media/httpbin/ip")
|
||||
if err != nil {
|
||||
return ""
|
||||
}
|
||||
defer res.Body.Close()
|
||||
data, err := ioutil.ReadAll(res.Body)
|
||||
if err != nil {
|
||||
return ""
|
||||
}
|
||||
ip := MyIP{}
|
||||
err = json.Unmarshal(data, &ip)
|
||||
if err != nil {
|
||||
return ""
|
||||
}
|
||||
return ip.IP
|
||||
|
||||
}
|
||||
func TestQuery(t *testing.T) {
|
||||
|
||||
m := net.IPv4Mask(255, 255, 255, 0)
|
||||
ip1 := net.ParseIP(myip())
|
||||
ipnet := net.IPNet{ip1.Mask(m), m}
|
||||
r, err := query("www.taobao.com", "a", ipnet.String(), "", "")
|
||||
if err != nil {
|
||||
t.Error(err)
|
||||
}
|
||||
fmt.Printf("%+v\n", r)
|
||||
|
||||
r, err = query("www.taobao.com", "a", "", "", "")
|
||||
if err != nil {
|
||||
t.Error(err)
|
||||
}
|
||||
fmt.Printf("%+v\n", r)
|
||||
|
||||
}
|
||||
|
||||
func TestHttpsQuery(t *testing.T) {
|
||||
m := new(dns.Msg)
|
||||
m.SetQuestion("www.taobao.com", dns.TypeA)
|
||||
m2, _, err := DefaultHTTPDnsClient.Exchange(m, ServerAddr)
|
||||
if err != nil {
|
||||
t.Error(err)
|
||||
}
|
||||
fmt.Println(m2)
|
||||
|
||||
time.Sleep(1 * time.Second)
|
||||
m2, _, err = DefaultHTTPDnsClient.Exchange(m, ServerAddr)
|
||||
if err != nil {
|
||||
t.Error(err)
|
||||
}
|
||||
fmt.Println(m2)
|
||||
}
|
||||
|
||||
func TestGetMyIP(t *testing.T) {
|
||||
a := DefaultHTTPDnsClient.getMyIP()
|
||||
time.Sleep(4 * time.Second)
|
||||
a = DefaultHTTPDnsClient.getMyIP()
|
||||
if a == "" {
|
||||
t.Errorf("get ip failed")
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,67 @@
|
||||
package main
|
||||
|
||||
import (
|
||||
"flag"
|
||||
"fmt"
|
||||
"os"
|
||||
"os/signal"
|
||||
"syscall"
|
||||
|
||||
log "github.com/fangdingjun/go-log/v5"
|
||||
)
|
||||
|
||||
var cfg *conf
|
||||
|
||||
func main() {
|
||||
var configfile string
|
||||
var logFileCount int
|
||||
var logFileSize int64
|
||||
var loglevel string
|
||||
var logfile string
|
||||
|
||||
flag.StringVar(&logfile, "log_file", "", "log file, default stdout")
|
||||
flag.IntVar(&logFileCount, "log_count", 10, "max count of log to keep")
|
||||
flag.Int64Var(&logFileSize, "log_size", 10, "max log file size MB")
|
||||
flag.StringVar(&loglevel, "log_level", "INFO",
|
||||
"log level, values:\nOFF, FATAL, PANIC, ERROR, WARN, INFO, DEBUG")
|
||||
flag.StringVar(&configfile, "c", "gdns.yaml", "config file")
|
||||
flag.Parse()
|
||||
|
||||
if logfile != "" {
|
||||
log.Default.Out = &log.FixedSizeFileWriter{
|
||||
MaxCount: logFileCount,
|
||||
Name: logfile,
|
||||
MaxSize: logFileSize * 1024 * 1024,
|
||||
}
|
||||
}
|
||||
|
||||
if loglevel != "" {
|
||||
lv, err := log.ParseLevel(loglevel)
|
||||
if err != nil {
|
||||
fmt.Fprintln(os.Stderr, err)
|
||||
os.Exit(1)
|
||||
}
|
||||
log.Default.Level = lv
|
||||
}
|
||||
|
||||
_cfg, err := loadConfig(configfile)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
|
||||
cfg = _cfg
|
||||
if cfg.UpstreamTimeout == 0 {
|
||||
cfg.UpstreamTimeout = 5
|
||||
}
|
||||
|
||||
initDNSClient(cfg)
|
||||
|
||||
log.Debugf("%+v", cfg)
|
||||
|
||||
makeServers(cfg)
|
||||
ch := make(chan os.Signal, 2)
|
||||
signal.Notify(ch, syscall.SIGINT, syscall.SIGTERM)
|
||||
s := <-ch
|
||||
log.Errorf("received signal %s, exit...", s)
|
||||
log.Println("exit.")
|
||||
}
|
||||
@ -0,0 +1,56 @@
|
||||
package main
|
||||
|
||||
import (
|
||||
"net/http"
|
||||
|
||||
log "github.com/fangdingjun/go-log/v5"
|
||||
)
|
||||
|
||||
type logHandler struct {
|
||||
status int
|
||||
w http.ResponseWriter
|
||||
size int
|
||||
}
|
||||
|
||||
func (lh *logHandler) WriteHeader(status int) {
|
||||
lh.status = status
|
||||
lh.w.WriteHeader(status)
|
||||
}
|
||||
|
||||
func (lh *logHandler) Write(buf []byte) (int, error) {
|
||||
lh.size += len(buf)
|
||||
return lh.w.Write(buf)
|
||||
}
|
||||
|
||||
func (lh *logHandler) Header() http.Header {
|
||||
return lh.w.Header()
|
||||
}
|
||||
|
||||
func (lh *logHandler) Status() int {
|
||||
if lh.status != 0 {
|
||||
return lh.status
|
||||
}
|
||||
return 200
|
||||
}
|
||||
|
||||
var _ http.ResponseWriter = &logHandler{}
|
||||
|
||||
// LogHandler is a log middleware
|
||||
// record request log
|
||||
func LogHandler(handler http.Handler) http.Handler {
|
||||
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
||||
defer func() {
|
||||
if err := recover(); err != nil {
|
||||
log.Error(err)
|
||||
w.WriteHeader(http.StatusInternalServerError)
|
||||
log.Infof("\"%s - %s %s %s\" - %d %d \"%s\"",
|
||||
r.RemoteAddr, r.Method, r.RequestURI, r.Proto, 500, 0, r.UserAgent())
|
||||
}
|
||||
}()
|
||||
|
||||
lh := &logHandler{w: w}
|
||||
handler.ServeHTTP(lh, r)
|
||||
log.Infof("\"%s - %s %s %s\" - %d %d \"%s\"",
|
||||
r.RemoteAddr, r.Method, r.RequestURI, r.Proto, lh.Status(), lh.size, r.UserAgent())
|
||||
})
|
||||
}
|
||||
@ -1,134 +0,0 @@
|
||||
package main
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"github.com/miekg/dns"
|
||||
//"log"
|
||||
"strings"
|
||||
"time"
|
||||
)
|
||||
|
||||
type routers struct {
|
||||
c *cfg
|
||||
tcp *dns.Client
|
||||
udp *dns.Client
|
||||
cache *cache
|
||||
}
|
||||
|
||||
func (r *routers) checkBlacklist(m *dns.Msg) bool {
|
||||
if m.Rcode != dns.RcodeSuccess {
|
||||
// not success, not in blacklist
|
||||
return false
|
||||
}
|
||||
|
||||
for _, rr := range m.Answer {
|
||||
var ip = ""
|
||||
if t, ok := rr.(*dns.A); ok {
|
||||
ip = t.A.String()
|
||||
} else if t, ok := rr.(*dns.AAAA); ok {
|
||||
ip = t.AAAA.String()
|
||||
}
|
||||
|
||||
if ip != "" && r.c.blacklistIps.has(ip) {
|
||||
//log.Printf("%s is in blacklist.\n", ip)
|
||||
return true
|
||||
}
|
||||
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
type dnsClient interface {
|
||||
Exchange(*dns.Msg, string) (*dns.Msg, time.Duration, error)
|
||||
}
|
||||
|
||||
func (r *routers) query(m *dns.Msg, servers []addr) (*dns.Msg, error) {
|
||||
var up dnsClient
|
||||
var lastErr error
|
||||
|
||||
if r.c.EnableCache {
|
||||
// query cache
|
||||
m2 := r.cache.get(m)
|
||||
if m2 != nil {
|
||||
//log.Printf("query %s, reply from cache\n", m.Question[0].Name)
|
||||
m2.Id = m.Id
|
||||
return m2, nil
|
||||
}
|
||||
}
|
||||
|
||||
for _, srv := range servers {
|
||||
switch srv.network {
|
||||
case "tcp":
|
||||
up = r.tcp
|
||||
case "udp":
|
||||
up = r.udp
|
||||
case "https":
|
||||
up = DefaultHTTPDnsClient
|
||||
default:
|
||||
up = r.udp
|
||||
}
|
||||
|
||||
//log.Printf("query %s use %s:%s\n", m.Question[0].Name, srv.network, srv.addr)
|
||||
|
||||
m1, _, err := up.Exchange(m, srv.addr)
|
||||
if err == nil && !r.checkBlacklist(m) {
|
||||
if m1.Rcode == dns.RcodeSuccess && r.c.EnableCache {
|
||||
// store to cache
|
||||
r.cache.set(m1)
|
||||
}
|
||||
return m1, err
|
||||
}
|
||||
|
||||
//log.Println(err)
|
||||
lastErr = err
|
||||
}
|
||||
|
||||
if lastErr == nil {
|
||||
// this happens when ip in blacklist
|
||||
lastErr = errors.New("timeout")
|
||||
}
|
||||
|
||||
// return last error
|
||||
return nil, lastErr
|
||||
}
|
||||
|
||||
// ServeDNS implements dns.Handler interface
|
||||
func (r *routers) ServeDNS(w dns.ResponseWriter, m *dns.Msg) {
|
||||
domain := m.Question[0].Name
|
||||
d := strings.Trim(domain, ".")
|
||||
for _, rule := range r.c.Rules {
|
||||
if rule.domains.match(d) {
|
||||
m1, err := r.query(m, rule.servers)
|
||||
if err == nil {
|
||||
w.WriteMsg(m1)
|
||||
return
|
||||
}
|
||||
|
||||
//log.Println(err)
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
// no match or failed, fallback to default
|
||||
m1, err := r.query(m, r.c.servers)
|
||||
if err != nil {
|
||||
//log.Println(err)
|
||||
dns.HandleFailed(w, m)
|
||||
} else {
|
||||
w.WriteMsg(m1)
|
||||
}
|
||||
}
|
||||
|
||||
func initRouters(c *cfg) {
|
||||
var cache1 *cache = nil
|
||||
if c.EnableCache {
|
||||
cache1 = newCache(1000, int64(c.TTL)) // cache 5 hours
|
||||
}
|
||||
router := &routers{
|
||||
c,
|
||||
&dns.Client{Net: "tcp", Timeout: time.Duration(c.Timeout) * time.Second},
|
||||
&dns.Client{Net: "udp", Timeout: time.Duration(c.Timeout) * time.Second},
|
||||
cache1,
|
||||
}
|
||||
dns.Handle(".", router)
|
||||
}
|
||||
@ -1,50 +1,158 @@
|
||||
package main
|
||||
|
||||
import (
|
||||
"flag"
|
||||
"github.com/fangdingjun/gpp/util"
|
||||
"github.com/miekg/dns"
|
||||
"log"
|
||||
"os"
|
||||
"time"
|
||||
"crypto/tls"
|
||||
"fmt"
|
||||
"net"
|
||||
"net/http"
|
||||
"net/url"
|
||||
"strconv"
|
||||
|
||||
log "github.com/fangdingjun/go-log/v5"
|
||||
"github.com/fangdingjun/protolistener"
|
||||
)
|
||||
|
||||
func initListeners(c *cfg) {
|
||||
for _, a := range c.listen {
|
||||
log.Printf("Listen on %s %s...\n", a.network, a.addr)
|
||||
s := &dns.Server{Addr: a.addr, Net: a.network}
|
||||
go func(s *dns.Server) {
|
||||
err := s.ListenAndServe()
|
||||
if err != nil {
|
||||
log.Println(err)
|
||||
os.Exit(-1)
|
||||
}
|
||||
}(s)
|
||||
type server struct {
|
||||
addr *url.URL
|
||||
cert string
|
||||
key string
|
||||
upstreams []*url.URL
|
||||
}
|
||||
|
||||
func (srv *server) serve() {
|
||||
switch srv.addr.Scheme {
|
||||
case "udp":
|
||||
srv.serveUDP()
|
||||
case "tcp":
|
||||
srv.serveTCP()
|
||||
case "tls":
|
||||
srv.serveTLS()
|
||||
case "http":
|
||||
srv.serveHTTP()
|
||||
case "https":
|
||||
srv.serveHTTP()
|
||||
default:
|
||||
log.Fatalf("unsupported type %s", srv.addr.Scheme)
|
||||
}
|
||||
}
|
||||
|
||||
func main() {
|
||||
var configFile string
|
||||
func (srv *server) serveUDP() {
|
||||
ip, port, _ := net.SplitHostPort(srv.addr.Host)
|
||||
_ip := net.ParseIP(ip)
|
||||
_port, _ := strconv.Atoi(port)
|
||||
|
||||
udpconn, err := net.ListenUDP("udp", &net.UDPAddr{IP: _ip, Port: _port})
|
||||
if err != nil {
|
||||
log.Fatalf("listen udp error %s", err)
|
||||
}
|
||||
|
||||
defer udpconn.Close()
|
||||
|
||||
buf := make([]byte, 4096)
|
||||
for {
|
||||
n, addr, err := udpconn.ReadFrom(buf)
|
||||
if err != nil {
|
||||
log.Debugln(err)
|
||||
break
|
||||
}
|
||||
buf1 := make([]byte, n)
|
||||
copy(buf1, buf[:n])
|
||||
go srv.handleUDP(buf1, addr, udpconn)
|
||||
}
|
||||
}
|
||||
|
||||
func (srv *server) serveTCP() {
|
||||
l, err := net.Listen("tcp", srv.addr.Host)
|
||||
if err != nil {
|
||||
log.Fatalln("listen tcp", err)
|
||||
}
|
||||
defer l.Close()
|
||||
log.Debugf("listen tcp://%s", l.Addr().String())
|
||||
for {
|
||||
conn, err := l.Accept()
|
||||
if err != nil {
|
||||
log.Debugln(err)
|
||||
break
|
||||
}
|
||||
go srv.handleTCP(conn)
|
||||
}
|
||||
}
|
||||
|
||||
flag.StringVar(&configFile, "c", "", "config file")
|
||||
flag.Parse()
|
||||
func (srv *server) serveTLS() {
|
||||
cert, err := tls.LoadX509KeyPair(srv.cert, srv.key)
|
||||
if err != nil {
|
||||
log.Fatalln("load certificate failed", err)
|
||||
}
|
||||
|
||||
config, err := parseCfg(configFile)
|
||||
l, err := net.Listen("tcp", srv.addr.Host)
|
||||
if err != nil {
|
||||
log.Println(err)
|
||||
os.Exit(-1)
|
||||
log.Fatalln("listen tls", err)
|
||||
}
|
||||
defer l.Close()
|
||||
|
||||
initRouters(config)
|
||||
initListeners(config)
|
||||
log.Debugf("listen tls://%s", l.Addr().String())
|
||||
tl := tls.NewListener(protolistener.New(l), &tls.Config{
|
||||
Certificates: []tls.Certificate{cert},
|
||||
//NextProtos: []string{"h2"},
|
||||
})
|
||||
|
||||
for {
|
||||
conn, err := tl.Accept()
|
||||
if err != nil {
|
||||
log.Debugln("tls accept", err)
|
||||
break
|
||||
}
|
||||
go srv.handleTCP(conn)
|
||||
}
|
||||
}
|
||||
|
||||
// make a delay to make sure net bind completed before drop privilege
|
||||
time.Sleep(time.Second)
|
||||
func (srv *server) serveHTTP() {
|
||||
log.Debugf("listen %s://%s", srv.addr.Scheme, srv.addr.Host)
|
||||
|
||||
err = util.DropPrivilege(config.User, config.Group)
|
||||
l, err := net.Listen("tcp", srv.addr.Host)
|
||||
if err != nil {
|
||||
log.Println(err)
|
||||
log.Fatalln("listen https", err)
|
||||
}
|
||||
defer l.Close()
|
||||
|
||||
select {}
|
||||
httpsrv := &http.Server{
|
||||
Handler: LogHandler(srv),
|
||||
}
|
||||
switch srv.addr.Scheme {
|
||||
case "http":
|
||||
err = httpsrv.Serve(protolistener.New(l))
|
||||
case "https":
|
||||
err = httpsrv.ServeTLS(protolistener.New(l), srv.cert, srv.key)
|
||||
default:
|
||||
err = fmt.Errorf("not supported %s", srv.addr.Scheme)
|
||||
}
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
}
|
||||
|
||||
func makeServers(c *conf) {
|
||||
upstreams := []*url.URL{}
|
||||
|
||||
for _, a := range c.UpstreamServers {
|
||||
u, err := url.Parse(a)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
upstreams = append(upstreams, u)
|
||||
}
|
||||
|
||||
for _, l := range c.Listen {
|
||||
u, err := url.Parse(l.Addr)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
srv := &server{
|
||||
addr: u,
|
||||
cert: l.Cert,
|
||||
key: l.Key,
|
||||
upstreams: upstreams,
|
||||
}
|
||||
go srv.serve()
|
||||
}
|
||||
}
|
||||
|
||||
@ -0,0 +1,66 @@
|
||||
package main
|
||||
|
||||
import (
|
||||
"io"
|
||||
"net/http"
|
||||
|
||||
log "github.com/fangdingjun/go-log/v5"
|
||||
"github.com/miekg/dns"
|
||||
)
|
||||
|
||||
const dnsMsgType = "application/dns-message"
|
||||
|
||||
func (srv *server) handleHTTPReq(w http.ResponseWriter, r *http.Request) {
|
||||
/*
|
||||
ctype := r.Header.Get("content-type")
|
||||
if !strings.HasPrefix(ctype, dnsMsgType) {
|
||||
log.Errorf("request type %s, require %s", ctype, dnsMsgType)
|
||||
http.Error(w, "dns message is required", http.StatusBadRequest)
|
||||
return
|
||||
}
|
||||
*/
|
||||
|
||||
if r.ContentLength < 10 {
|
||||
log.Errorf("message is too small, %v", r.ContentLength)
|
||||
http.Error(w, "message is too small", http.StatusBadRequest)
|
||||
return
|
||||
}
|
||||
|
||||
data, err := io.ReadAll(r.Body)
|
||||
if err != nil {
|
||||
log.Errorln("read request body", err)
|
||||
http.Error(w, "read request failed", http.StatusBadRequest)
|
||||
return
|
||||
}
|
||||
|
||||
msg := new(dns.Msg)
|
||||
if err := msg.Unpack(data); err != nil {
|
||||
log.Errorln("parse dns message", err)
|
||||
http.Error(w, "parse dns message error", http.StatusBadRequest)
|
||||
return
|
||||
}
|
||||
|
||||
m, err := getResponseFromUpstream(msg, srv.upstreams)
|
||||
if err != nil {
|
||||
log.Debugln("query", msg.Question[0].String(), "timeout")
|
||||
http.Error(w, "query upstream server failed", http.StatusServiceUnavailable)
|
||||
return
|
||||
}
|
||||
|
||||
for _, a := range m.Answer {
|
||||
log.Debugln("result", a.String())
|
||||
}
|
||||
w.Header().Set("content-type", dnsMsgType)
|
||||
d, _ := m.Pack()
|
||||
if _, err := w.Write(d); err != nil {
|
||||
log.Errorln(err)
|
||||
}
|
||||
}
|
||||
|
||||
func (srv *server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
|
||||
if r.RequestURI != srv.addr.Path {
|
||||
http.Error(w, "Path not found", http.StatusNotFound)
|
||||
return
|
||||
}
|
||||
srv.handleHTTPReq(w, r)
|
||||
}
|
||||
@ -0,0 +1,35 @@
|
||||
package main
|
||||
|
||||
import (
|
||||
"net"
|
||||
|
||||
log "github.com/fangdingjun/go-log/v5"
|
||||
"github.com/miekg/dns"
|
||||
)
|
||||
|
||||
func (srv *server) handleTCP(c net.Conn) {
|
||||
defer c.Close()
|
||||
log.Debugln("tcp from", c.RemoteAddr())
|
||||
conn := dns.Conn{Conn: c}
|
||||
for {
|
||||
msg, err := conn.ReadMsg()
|
||||
if err != nil {
|
||||
log.Debugln("tcp read message", err)
|
||||
break
|
||||
}
|
||||
|
||||
m, err := getResponseFromUpstream(msg, srv.upstreams)
|
||||
if err != nil {
|
||||
log.Debugln("query", msg.Question[0].String(), "timeout")
|
||||
break
|
||||
}
|
||||
|
||||
for _, a := range m.Answer {
|
||||
log.Debugln("result", a.String())
|
||||
}
|
||||
if err := conn.WriteMsg(m); err != nil {
|
||||
log.Errorln(err)
|
||||
break
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,30 @@
|
||||
package main
|
||||
|
||||
import (
|
||||
"net"
|
||||
|
||||
log "github.com/fangdingjun/go-log/v5"
|
||||
"github.com/miekg/dns"
|
||||
)
|
||||
|
||||
func (srv *server) handleUDP(buf []byte, addr net.Addr, conn *net.UDPConn) {
|
||||
msg := new(dns.Msg)
|
||||
if err := msg.Unpack(buf); err != nil {
|
||||
log.Debugln("udp parse msg", err)
|
||||
return
|
||||
}
|
||||
|
||||
m, err := getResponseFromUpstream(msg, srv.upstreams)
|
||||
if err != nil {
|
||||
log.Debugln("query", msg.Question[0].String(), "timeout")
|
||||
return
|
||||
}
|
||||
|
||||
for _, a := range m.Answer {
|
||||
log.Debugln("result", a.String())
|
||||
}
|
||||
d, _ := m.Pack()
|
||||
if _, err := conn.WriteTo(d, addr); err != nil {
|
||||
log.Errorln(err)
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,201 @@
|
||||
package main
|
||||
|
||||
import (
|
||||
"bufio"
|
||||
"context"
|
||||
"crypto/tls"
|
||||
"errors"
|
||||
"fmt"
|
||||
"net"
|
||||
"net/http"
|
||||
"net/url"
|
||||
"os"
|
||||
"strings"
|
||||
"time"
|
||||
|
||||
log "github.com/fangdingjun/go-log/v5"
|
||||
"github.com/miekg/dns"
|
||||
"golang.org/x/net/http2"
|
||||
)
|
||||
|
||||
var dnsClientTCP *dns.Client
|
||||
var dnsClientUDP *dns.Client
|
||||
var dnsClientTLS *dns.Client
|
||||
var dnsClientHTTPS *httpclient
|
||||
|
||||
func getResponseFromUpstream(msg *dns.Msg, upstreams []*url.URL) (*dns.Msg, error) {
|
||||
ctx, cancel := context.WithTimeout(context.Background(), time.Duration(cfg.UpstreamTimeout+1)*time.Second)
|
||||
defer cancel()
|
||||
|
||||
resch := make(chan *dns.Msg, len(upstreams))
|
||||
|
||||
for _, up := range upstreams {
|
||||
go func(u *url.URL) {
|
||||
m, err := queryUpstream(msg, u)
|
||||
if err == nil {
|
||||
resch <- m
|
||||
return
|
||||
}
|
||||
log.Errorln(u.String(), err)
|
||||
}(up)
|
||||
}
|
||||
|
||||
var errmsg *dns.Msg
|
||||
|
||||
for i := 0; i < len(upstreams); i++ {
|
||||
select {
|
||||
case <-ctx.Done():
|
||||
return nil, errors.New("time out")
|
||||
case m := <-resch:
|
||||
if m.MsgHdr.Rcode == dns.RcodeSuccess {
|
||||
return m, nil
|
||||
}
|
||||
errmsg = m
|
||||
}
|
||||
}
|
||||
if errmsg != nil {
|
||||
return errmsg, nil
|
||||
}
|
||||
return nil, errors.New("empty result")
|
||||
}
|
||||
|
||||
func queryUpstream(msg *dns.Msg, upstream *url.URL) (*dns.Msg, error) {
|
||||
switch upstream.Scheme {
|
||||
case "tcp":
|
||||
return queryUpstreamTCP(msg, upstream)
|
||||
case "https":
|
||||
return queryUpstreamHTTPS(msg, upstream)
|
||||
case "udp":
|
||||
return queryUpstreamUDP(msg, upstream)
|
||||
case "tls":
|
||||
return queryUpstreamTLS(msg, upstream)
|
||||
default:
|
||||
}
|
||||
return nil, errors.New("unknown upstream type")
|
||||
}
|
||||
|
||||
func queryUpstreamUDP(msg *dns.Msg, upstream *url.URL) (*dns.Msg, error) {
|
||||
m, _, err := dnsClientUDP.Exchange(msg, upstream.Host)
|
||||
if err != nil {
|
||||
log.Debugf("query udp error %s", err)
|
||||
}
|
||||
return m, err
|
||||
}
|
||||
|
||||
func queryUpstreamTCP(msg *dns.Msg, upstream *url.URL) (*dns.Msg, error) {
|
||||
m, _, err := dnsClientTCP.Exchange(msg, upstream.Host)
|
||||
if err != nil {
|
||||
log.Debugf("query tcp error %s", err)
|
||||
}
|
||||
return m, err
|
||||
}
|
||||
|
||||
func queryUpstreamTLS(msg *dns.Msg, upstream *url.URL) (*dns.Msg, error) {
|
||||
m, _, err := dnsClientTLS.Exchange(msg, upstream.Host)
|
||||
if err != nil {
|
||||
log.Debugf("query tls error %s", err)
|
||||
}
|
||||
return m, err
|
||||
}
|
||||
|
||||
func queryUpstreamHTTPS(msg *dns.Msg, upstream *url.URL) (*dns.Msg, error) {
|
||||
m, _, err := dnsClientHTTPS.Exchange(msg, upstream.String())
|
||||
if err != nil {
|
||||
log.Debugf("query https error %s", err)
|
||||
}
|
||||
return m, err
|
||||
}
|
||||
|
||||
func initDNSClient(c *conf) {
|
||||
var resolver = new(net.Resolver)
|
||||
if len(c.BootstrapServers) > 0 {
|
||||
log.Debugf("init dns client, bootstrap servers %v", c.BootstrapServers)
|
||||
resolver = &net.Resolver{
|
||||
Dial: func(ctx context.Context, network, addr string) (net.Conn, error) {
|
||||
for _, a := range c.BootstrapServers {
|
||||
u, _ := url.Parse(a)
|
||||
conn, err := net.Dial(u.Scheme, u.Host)
|
||||
if err == nil {
|
||||
return conn, err
|
||||
}
|
||||
}
|
||||
return nil, errors.New("dial failed")
|
||||
},
|
||||
}
|
||||
}
|
||||
|
||||
dialer := &net.Dialer{
|
||||
Resolver: resolver,
|
||||
}
|
||||
|
||||
dnsClientTLS = &dns.Client{
|
||||
Net: "tcp-tls",
|
||||
Timeout: time.Duration(c.UpstreamTimeout) * time.Second,
|
||||
Dialer: dialer,
|
||||
TLSConfig: &tls.Config{
|
||||
InsecureSkipVerify: c.UpstreamInsecure,
|
||||
},
|
||||
}
|
||||
dnsClientUDP = &dns.Client{
|
||||
Net: "udp",
|
||||
Timeout: time.Duration(c.UpstreamTimeout) * time.Second,
|
||||
}
|
||||
dnsClientTCP = &dns.Client{
|
||||
Net: "tcp",
|
||||
Timeout: time.Duration(c.UpstreamTimeout) * time.Second,
|
||||
}
|
||||
dnsClientHTTPS = &httpclient{
|
||||
Net: "https",
|
||||
Timeout: time.Duration(c.UpstreamTimeout) * time.Second,
|
||||
HTTPClient: &http.Client{
|
||||
Transport: &http2.Transport{
|
||||
DialTLS: func(network, addr string, cfg *tls.Config) (net.Conn, error) {
|
||||
log.Debugln("dial to", network, addr)
|
||||
p := os.Getenv("https_proxy")
|
||||
if p == "" {
|
||||
p = os.Getenv("http_proxy")
|
||||
}
|
||||
if p == "" {
|
||||
conn, err := tls.DialWithDialer(dialer, network, addr, cfg)
|
||||
return conn, err
|
||||
}
|
||||
u, _ := url.Parse(p)
|
||||
log.Debugf("dial to proxy %s", u.Host)
|
||||
conn, err := net.Dial(network, u.Host)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
fmt.Fprintf(conn, "CONNECT %s HTTP/1.1\r\nHost: %s\r\n\r\n", addr, addr)
|
||||
r := bufio.NewReader(conn)
|
||||
line, err := r.ReadString('\n')
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
ss := strings.Fields(line)
|
||||
if ss[1] != "200" {
|
||||
return nil, fmt.Errorf("http code %s", ss[1])
|
||||
}
|
||||
for {
|
||||
line, err := r.ReadString('\n')
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
line = strings.Trim(line, "\r\n")
|
||||
if line == "" {
|
||||
break
|
||||
}
|
||||
}
|
||||
tlsconn := tls.Client(conn, cfg)
|
||||
if err = tlsconn.Handshake(); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return tlsconn, nil
|
||||
},
|
||||
TLSClientConfig: &tls.Config{
|
||||
InsecureSkipVerify: c.UpstreamInsecure,
|
||||
NextProtos: []string{"h2"},
|
||||
},
|
||||
},
|
||||
},
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue