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# This is the official list of go-ethereum authors for copyright purposes. |
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Alex Leverington <alex@ethdev.com> |
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Alexandre Van de Sande <alex.vandesande@ethdev.com> |
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Bas van Kervel <bas@ethdev.com> |
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Daniel A. Nagy <nagy.da@gmail.com> |
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Ethan Buchman <ethan@coinculture.info> |
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Fabian Vogelsteller <fabian@frozeman.de> |
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Felix Lange <fjl@twurst.com> |
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Gustav Simonsson <gustav.simonsson@gmail.com> |
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Jae Kwon <jkwon.work@gmail.com> |
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Jason Carver <jacarver@linkedin.com> |
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Jeffrey Wilcke <jeffrey@ethereum.org> |
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Joseph Chow <ethereum@outlook.com> |
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Kobi Gurkan <kobigurk@gmail.com> |
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Maran Hidskes <maran.hidskes@gmail.com> |
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Marek Kotewicz <marek.kotewicz@gmail.com> |
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Matthew Wampler-Doty <matthew.wampler.doty@gmail.com> |
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Nick Dodson <silentcicero@outlook.com> |
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Péter Szilágyi <peterke@gmail.com> |
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Taylor Gerring <taylor.gerring@gmail.com> |
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Viktor Trón <viktor.tron@gmail.com> |
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Vitalik Buterin <v@buterin.com> |
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Zsolt Felföldi <zsfelfoldi@gmail.com> |
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GNU GENERAL PUBLIC LICENSE |
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Version 3, 29 June 2007 |
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Copyright (C) 2014 The go-ethereum Authors. |
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Everyone is permitted to copy and distribute verbatim copies |
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of this license document, but changing it is not allowed. |
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Preamble |
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The GNU General Public License is a free, copyleft license for |
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The licenses for most software and other practical works are designed |
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share and change all versions of a program--to make sure it remains free |
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software for all its users. We, the Free Software Foundation, use the |
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GNU General Public License for most of our software; it applies also to |
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any other work released this way by its authors. You can apply it to |
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your programs, too. |
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When we speak of free software, we are referring to freedom, not |
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You may convey a covered work in object code form under the terms |
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A separable portion of the object code, whose source code is excluded |
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A "User Product" is either (1) a "consumer product", which means any |
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"Installation Information" for a User Product means any methods, |
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If you convey an object code work under this section in, or with, or |
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Corresponding Source conveyed under this section must be accompanied |
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if neither you nor any third party retains the ability to install |
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modified object code on the User Product (for example, the work has |
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been installed in ROM). |
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The requirement to provide Installation Information does not include a |
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requirement to continue to provide support service, warranty, or updates |
||||||
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for a work that has been modified or installed by the recipient, or for |
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network may be denied when the modification itself materially and |
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||||||
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Corresponding Source conveyed, and Installation Information provided, |
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in accord with this section must be in a format that is publicly |
||||||
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documented (and with an implementation available to the public in |
||||||
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source code form), and must require no special password or key for |
||||||
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unpacking, reading or copying. |
||||||
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||||||
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7. Additional Terms. |
||||||
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||||||
|
"Additional permissions" are terms that supplement the terms of this |
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License by making exceptions from one or more of its conditions. |
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Additional permissions that are applicable to the entire Program shall |
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||||||
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||||||
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apply only to part of the Program, that part may be used separately |
||||||
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this License without regard to the additional permissions. |
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||||||
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When you convey a copy of a covered work, you may at your option |
||||||
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remove any additional permissions from that copy, or from any part of |
||||||
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|
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. |
@ -0,0 +1,165 @@ |
|||||||
|
GNU LESSER 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. |
||||||
|
|
||||||
|
|
||||||
|
This version of the GNU Lesser General Public License incorporates |
||||||
|
the terms and conditions of version 3 of the GNU General Public |
||||||
|
License, supplemented by the additional permissions listed below. |
||||||
|
|
||||||
|
0. Additional Definitions. |
||||||
|
|
||||||
|
As used herein, "this License" refers to version 3 of the GNU Lesser |
||||||
|
General Public License, and the "GNU GPL" refers to version 3 of the GNU |
||||||
|
General Public License. |
||||||
|
|
||||||
|
"The Library" refers to a covered work governed by this License, |
||||||
|
other than an Application or a Combined Work as defined below. |
||||||
|
|
||||||
|
An "Application" is any work that makes use of an interface provided |
||||||
|
by the Library, but which is not otherwise based on the Library. |
||||||
|
Defining a subclass of a class defined by the Library is deemed a mode |
||||||
|
of using an interface provided by the Library. |
||||||
|
|
||||||
|
A "Combined Work" is a work produced by combining or linking an |
||||||
|
Application with the Library. The particular version of the Library |
||||||
|
with which the Combined Work was made is also called the "Linked |
||||||
|
Version". |
||||||
|
|
||||||
|
The "Minimal Corresponding Source" for a Combined Work means the |
||||||
|
Corresponding Source for the Combined Work, excluding any source code |
||||||
|
for portions of the Combined Work that, considered in isolation, are |
||||||
|
based on the Application, and not on the Linked Version. |
||||||
|
|
||||||
|
The "Corresponding Application Code" for a Combined Work means the |
||||||
|
object code and/or source code for the Application, including any data |
||||||
|
and utility programs needed for reproducing the Combined Work from the |
||||||
|
Application, but excluding the System Libraries of the Combined Work. |
||||||
|
|
||||||
|
1. Exception to Section 3 of the GNU GPL. |
||||||
|
|
||||||
|
You may convey a covered work under sections 3 and 4 of this License |
||||||
|
without being bound by section 3 of the GNU GPL. |
||||||
|
|
||||||
|
2. Conveying Modified Versions. |
||||||
|
|
||||||
|
If you modify a copy of the Library, and, in your modifications, a |
||||||
|
facility refers to a function or data to be supplied by an Application |
||||||
|
that uses the facility (other than as an argument passed when the |
||||||
|
facility is invoked), then you may convey a copy of the modified |
||||||
|
version: |
||||||
|
|
||||||
|
a) under this License, provided that you make a good faith effort to |
||||||
|
ensure that, in the event an Application does not supply the |
||||||
|
function or data, the facility still operates, and performs |
||||||
|
whatever part of its purpose remains meaningful, or |
||||||
|
|
||||||
|
b) under the GNU GPL, with none of the additional permissions of |
||||||
|
this License applicable to that copy. |
||||||
|
|
||||||
|
3. Object Code Incorporating Material from Library Header Files. |
||||||
|
|
||||||
|
The object code form of an Application may incorporate material from |
||||||
|
a header file that is part of the Library. You may convey such object |
||||||
|
code under terms of your choice, provided that, if the incorporated |
||||||
|
material is not limited to numerical parameters, data structure |
||||||
|
layouts and accessors, or small macros, inline functions and templates |
||||||
|
(ten or fewer lines in length), you do both of the following: |
||||||
|
|
||||||
|
a) Give prominent notice with each copy of the object code that the |
||||||
|
Library is used in it and that the Library and its use are |
||||||
|
covered by this License. |
||||||
|
|
||||||
|
b) Accompany the object code with a copy of the GNU GPL and this license |
||||||
|
document. |
||||||
|
|
||||||
|
4. Combined Works. |
||||||
|
|
||||||
|
You may convey a Combined Work under terms of your choice that, |
||||||
|
taken together, effectively do not restrict modification of the |
||||||
|
portions of the Library contained in the Combined Work and reverse |
||||||
|
engineering for debugging such modifications, if you also do each of |
||||||
|
the following: |
||||||
|
|
||||||
|
a) Give prominent notice with each copy of the Combined Work that |
||||||
|
the Library is used in it and that the Library and its use are |
||||||
|
covered by this License. |
||||||
|
|
||||||
|
b) Accompany the Combined Work with a copy of the GNU GPL and this license |
||||||
|
document. |
||||||
|
|
||||||
|
c) For a Combined Work that displays copyright notices during |
||||||
|
execution, include the copyright notice for the Library among |
||||||
|
these notices, as well as a reference directing the user to the |
||||||
|
copies of the GNU GPL and this license document. |
||||||
|
|
||||||
|
d) Do one of the following: |
||||||
|
|
||||||
|
0) Convey the Minimal Corresponding Source under the terms of this |
||||||
|
License, and the Corresponding Application Code in a form |
||||||
|
suitable for, and under terms that permit, the user to |
||||||
|
recombine or relink the Application with a modified version of |
||||||
|
the Linked Version to produce a modified Combined Work, in the |
||||||
|
manner specified by section 6 of the GNU GPL for conveying |
||||||
|
Corresponding Source. |
||||||
|
|
||||||
|
1) Use a suitable shared library mechanism for linking with the |
||||||
|
Library. A suitable mechanism is one that (a) uses at run time |
||||||
|
a copy of the Library already present on the user's computer |
||||||
|
system, and (b) will operate properly with a modified version |
||||||
|
of the Library that is interface-compatible with the Linked |
||||||
|
Version. |
||||||
|
|
||||||
|
e) Provide Installation Information, but only if you would otherwise |
||||||
|
be required to provide such information under section 6 of the |
||||||
|
GNU GPL, and only to the extent that such information is |
||||||
|
necessary to install and execute a modified version of the |
||||||
|
Combined Work produced by recombining or relinking the |
||||||
|
Application with a modified version of the Linked Version. (If |
||||||
|
you use option 4d0, the Installation Information must accompany |
||||||
|
the Minimal Corresponding Source and Corresponding Application |
||||||
|
Code. If you use option 4d1, you must provide the Installation |
||||||
|
Information in the manner specified by section 6 of the GNU GPL |
||||||
|
for conveying Corresponding Source.) |
||||||
|
|
||||||
|
5. Combined Libraries. |
||||||
|
|
||||||
|
You may place library facilities that are a work based on the |
||||||
|
Library side by side in a single library together with other library |
||||||
|
facilities that are not Applications and are not covered by this |
||||||
|
License, and convey such a combined library under terms of your |
||||||
|
choice, if you do both of the following: |
||||||
|
|
||||||
|
a) Accompany the combined library with a copy of the same work based |
||||||
|
on the Library, uncombined with any other library facilities, |
||||||
|
conveyed under the terms of this License. |
||||||
|
|
||||||
|
b) Give prominent notice with the combined library that part of it |
||||||
|
is a work based on the Library, and explaining where to find the |
||||||
|
accompanying uncombined form of the same work. |
||||||
|
|
||||||
|
6. Revised Versions of the GNU Lesser General Public License. |
||||||
|
|
||||||
|
The Free Software Foundation may publish revised and/or new versions |
||||||
|
of the GNU Lesser 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 |
||||||
|
Library as you received it specifies that a certain numbered version |
||||||
|
of the GNU Lesser General Public License "or any later version" |
||||||
|
applies to it, you have the option of following the terms and |
||||||
|
conditions either of that published version or of any later version |
||||||
|
published by the Free Software Foundation. If the Library as you |
||||||
|
received it does not specify a version number of the GNU Lesser |
||||||
|
General Public License, you may choose any version of the GNU Lesser |
||||||
|
General Public License ever published by the Free Software Foundation. |
||||||
|
|
||||||
|
If the Library as you received it specifies that a proxy can decide |
||||||
|
whether future versions of the GNU Lesser General Public License shall |
||||||
|
apply, that proxy's public statement of acceptance of any version is |
||||||
|
permanent authorization for you to choose that version for the |
||||||
|
Library. |
@ -0,0 +1,347 @@ |
|||||||
|
// +build none
|
||||||
|
|
||||||
|
/* |
||||||
|
This command generates GPL license headers on top of all source files. |
||||||
|
You can run it once per month, before cutting a release or just |
||||||
|
whenever you feel like it. |
||||||
|
|
||||||
|
go run update-license.go |
||||||
|
|
||||||
|
All authors (people who have contributed code) are listed in the |
||||||
|
AUTHORS file. The author names are mapped and deduplicated using the |
||||||
|
.mailmap file. You can use .mailmap to set the canonical name and |
||||||
|
address for each author. See git-shortlog(1) for an explanation of the |
||||||
|
.mailmap format. |
||||||
|
|
||||||
|
Please review the resulting diff to check whether the correct |
||||||
|
copyright assignments are performed. |
||||||
|
*/ |
||||||
|
|
||||||
|
package main |
||||||
|
|
||||||
|
import ( |
||||||
|
"bufio" |
||||||
|
"bytes" |
||||||
|
"fmt" |
||||||
|
"io/ioutil" |
||||||
|
"log" |
||||||
|
"os" |
||||||
|
"os/exec" |
||||||
|
"path/filepath" |
||||||
|
"regexp" |
||||||
|
"runtime" |
||||||
|
"sort" |
||||||
|
"strconv" |
||||||
|
"strings" |
||||||
|
"sync" |
||||||
|
"text/template" |
||||||
|
"time" |
||||||
|
) |
||||||
|
|
||||||
|
var ( |
||||||
|
// only files with these extensions will be considered
|
||||||
|
extensions = []string{".go", ".js", ".qml"} |
||||||
|
|
||||||
|
// paths with any of these prefixes will be skipped
|
||||||
|
skipPrefixes = []string{ |
||||||
|
// boring stuff
|
||||||
|
"Godeps/", "tests/files/", "build/", |
||||||
|
// don't relicense vendored packages
|
||||||
|
"crypto/sha3/", "crypto/ecies/", "logger/glog/", |
||||||
|
} |
||||||
|
|
||||||
|
// paths with this prefix are licensed as GPL. all other files are LGPL.
|
||||||
|
gplPrefixes = []string{"cmd/"} |
||||||
|
|
||||||
|
// this regexp must match the entire license comment at the
|
||||||
|
// beginning of each file.
|
||||||
|
licenseCommentRE = regexp.MustCompile(`^//\s*(Copyright|This file is part of).*?\n(?://.*?\n)*\n*`) |
||||||
|
|
||||||
|
// this text appears at the start of AUTHORS
|
||||||
|
authorsFileHeader = "# This is the official list of go-ethereum authors for copyright purposes.\n\n" |
||||||
|
) |
||||||
|
|
||||||
|
// this template generates the license comment.
|
||||||
|
// its input is an info structure.
|
||||||
|
var licenseT = template.Must(template.New("").Parse(` |
||||||
|
// Copyright {{.Year}} The go-ethereum Authors
|
||||||
|
// This file is part of go-ethereum.
|
||||||
|
//
|
||||||
|
// go-ethereum is free software: you can redistribute it and/or modify
|
||||||
|
// it under the terms of the GNU {{.License}} as published by
|
||||||
|
// the Free Software Foundation, either version 3 of the License, or
|
||||||
|
// (at your option) any later version.
|
||||||
|
//
|
||||||
|
// go-ethereum 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 {{.License}} for more details.
|
||||||
|
//
|
||||||
|
// You should have received a copy of the GNU {{.License}}
|
||||||
|
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
|
||||||
|
`[1:])) |
||||||
|
|
||||||
|
type info struct { |
||||||
|
file string |
||||||
|
Year int64 |
||||||
|
} |
||||||
|
|
||||||
|
func (i info) License() string { |
||||||
|
if i.gpl() { |
||||||
|
return "General Public License" |
||||||
|
} else { |
||||||
|
return "Lesser General Public License" |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
func (i info) ShortLicense() string { |
||||||
|
if i.gpl() { |
||||||
|
return "GPL" |
||||||
|
} else { |
||||||
|
return "LGPL" |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
func (i info) gpl() bool { |
||||||
|
for _, p := range gplPrefixes { |
||||||
|
if strings.HasPrefix(i.file, p) { |
||||||
|
return true |
||||||
|
} |
||||||
|
} |
||||||
|
return false |
||||||
|
} |
||||||
|
|
||||||
|
func main() { |
||||||
|
var ( |
||||||
|
files = getFiles() |
||||||
|
filec = make(chan string) |
||||||
|
infoc = make(chan *info, 20) |
||||||
|
wg sync.WaitGroup |
||||||
|
) |
||||||
|
|
||||||
|
writeAuthors(files) |
||||||
|
|
||||||
|
go func() { |
||||||
|
for _, f := range files { |
||||||
|
filec <- f |
||||||
|
} |
||||||
|
close(filec) |
||||||
|
}() |
||||||
|
for i := runtime.NumCPU(); i >= 0; i-- { |
||||||
|
// getting file info is slow and needs to be parallel.
|
||||||
|
// it traverses git history for each file.
|
||||||
|
wg.Add(1) |
||||||
|
go getInfo(filec, infoc, &wg) |
||||||
|
} |
||||||
|
go func() { |
||||||
|
wg.Wait() |
||||||
|
close(infoc) |
||||||
|
}() |
||||||
|
writeLicenses(infoc) |
||||||
|
} |
||||||
|
|
||||||
|
func getFiles() []string { |
||||||
|
cmd := exec.Command("git", "ls-tree", "-r", "--name-only", "HEAD") |
||||||
|
var files []string |
||||||
|
err := doLines(cmd, func(line string) { |
||||||
|
for _, p := range skipPrefixes { |
||||||
|
if strings.HasPrefix(line, p) { |
||||||
|
return |
||||||
|
} |
||||||
|
} |
||||||
|
ext := filepath.Ext(line) |
||||||
|
for _, wantExt := range extensions { |
||||||
|
if ext == wantExt { |
||||||
|
goto keep |
||||||
|
} |
||||||
|
} |
||||||
|
return |
||||||
|
keep: |
||||||
|
files = append(files, line) |
||||||
|
}) |
||||||
|
if err != nil { |
||||||
|
log.Fatalf("error getting files:", err) |
||||||
|
} |
||||||
|
return files |
||||||
|
} |
||||||
|
|
||||||
|
var authorRegexp = regexp.MustCompile(`\s*[0-9]+\s*(.*)`) |
||||||
|
|
||||||
|
func gitAuthors(files []string) []string { |
||||||
|
cmds := []string{"shortlog", "-s", "-n", "-e", "HEAD", "--"} |
||||||
|
cmds = append(cmds, files...) |
||||||
|
cmd := exec.Command("git", cmds...) |
||||||
|
var authors []string |
||||||
|
err := doLines(cmd, func(line string) { |
||||||
|
m := authorRegexp.FindStringSubmatch(line) |
||||||
|
if len(m) > 1 { |
||||||
|
authors = append(authors, m[1]) |
||||||
|
} |
||||||
|
}) |
||||||
|
if err != nil { |
||||||
|
log.Fatalln("error getting authors:", err) |
||||||
|
} |
||||||
|
return authors |
||||||
|
} |
||||||
|
|
||||||
|
func readAuthors() []string { |
||||||
|
content, err := ioutil.ReadFile("AUTHORS") |
||||||
|
if err != nil && !os.IsNotExist(err) { |
||||||
|
log.Fatalln("error reading AUTHORS:", err) |
||||||
|
} |
||||||
|
var authors []string |
||||||
|
for _, a := range bytes.Split(content, []byte("\n")) { |
||||||
|
if len(a) > 0 && a[0] != '#' { |
||||||
|
authors = append(authors, string(a)) |
||||||
|
} |
||||||
|
} |
||||||
|
// Retranslate existing authors through .mailmap.
|
||||||
|
// This should catch email address changes.
|
||||||
|
authors = mailmapLookup(authors) |
||||||
|
return authors |
||||||
|
} |
||||||
|
|
||||||
|
func mailmapLookup(authors []string) []string { |
||||||
|
if len(authors) == 0 { |
||||||
|
return nil |
||||||
|
} |
||||||
|
cmds := []string{"check-mailmap", "--"} |
||||||
|
cmds = append(cmds, authors...) |
||||||
|
cmd := exec.Command("git", cmds...) |
||||||
|
var translated []string |
||||||
|
err := doLines(cmd, func(line string) { |
||||||
|
translated = append(translated, line) |
||||||
|
}) |
||||||
|
if err != nil { |
||||||
|
log.Fatalln("error translating authors:", err) |
||||||
|
} |
||||||
|
return translated |
||||||
|
} |
||||||
|
|
||||||
|
func writeAuthors(files []string) { |
||||||
|
merge := make(map[string]bool) |
||||||
|
// Add authors that Git reports as contributorxs.
|
||||||
|
// This is the primary source of author information.
|
||||||
|
for _, a := range gitAuthors(files) { |
||||||
|
merge[a] = true |
||||||
|
} |
||||||
|
// Add existing authors from the file. This should ensure that we
|
||||||
|
// never lose authors, even if Git stops listing them. We can also
|
||||||
|
// add authors manually this way.
|
||||||
|
for _, a := range readAuthors() { |
||||||
|
merge[a] = true |
||||||
|
} |
||||||
|
// Write sorted list of authors back to the file.
|
||||||
|
var result []string |
||||||
|
for a := range merge { |
||||||
|
result = append(result, a) |
||||||
|
} |
||||||
|
sort.Strings(result) |
||||||
|
content := new(bytes.Buffer) |
||||||
|
content.WriteString(authorsFileHeader) |
||||||
|
for _, a := range result { |
||||||
|
content.WriteString(a) |
||||||
|
content.WriteString("\n") |
||||||
|
} |
||||||
|
fmt.Println("writing AUTHORS") |
||||||
|
if err := ioutil.WriteFile("AUTHORS", content.Bytes(), 0644); err != nil { |
||||||
|
log.Fatalln(err) |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
func getInfo(files <-chan string, out chan<- *info, wg *sync.WaitGroup) { |
||||||
|
for file := range files { |
||||||
|
stat, err := os.Lstat(file) |
||||||
|
if err != nil { |
||||||
|
fmt.Printf("ERROR %s: %v\n", file, err) |
||||||
|
continue |
||||||
|
} |
||||||
|
if !stat.Mode().IsRegular() { |
||||||
|
continue |
||||||
|
} |
||||||
|
info, err := fileInfo(file) |
||||||
|
if err != nil { |
||||||
|
fmt.Printf("ERROR %s: %v\n", file, err) |
||||||
|
continue |
||||||
|
} |
||||||
|
out <- info |
||||||
|
} |
||||||
|
wg.Done() |
||||||
|
} |
||||||
|
|
||||||
|
// fileInfo finds the lowest year in which the given file was commited.
|
||||||
|
func fileInfo(file string) (*info, error) { |
||||||
|
info := &info{file: file, Year: int64(time.Now().Year())} |
||||||
|
cmd := exec.Command("git", "log", "--follow", "--find-copies", "--pretty=format:%ai", "--", file) |
||||||
|
err := doLines(cmd, func(line string) { |
||||||
|
y, err := strconv.ParseInt(line[:4], 10, 64) |
||||||
|
if err != nil { |
||||||
|
fmt.Printf("cannot parse year: %q", line[:4]) |
||||||
|
} |
||||||
|
if y < info.Year { |
||||||
|
info.Year = y |
||||||
|
} |
||||||
|
}) |
||||||
|
return info, err |
||||||
|
} |
||||||
|
|
||||||
|
func writeLicenses(infos <-chan *info) { |
||||||
|
for i := range infos { |
||||||
|
writeLicense(i) |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
func writeLicense(info *info) { |
||||||
|
fi, err := os.Stat(info.file) |
||||||
|
if os.IsNotExist(err) { |
||||||
|
fmt.Println("skipping (does not exist)", info.file) |
||||||
|
return |
||||||
|
} |
||||||
|
if err != nil { |
||||||
|
log.Fatalf("error stat'ing %s: %v\n", info.file, err) |
||||||
|
} |
||||||
|
content, err := ioutil.ReadFile(info.file) |
||||||
|
if err != nil { |
||||||
|
log.Fatalf("error reading %s: %v\n", info.file, err) |
||||||
|
} |
||||||
|
// Construct new file content.
|
||||||
|
buf := new(bytes.Buffer) |
||||||
|
licenseT.Execute(buf, info) |
||||||
|
if m := licenseCommentRE.FindIndex(content); m != nil && m[0] == 0 { |
||||||
|
buf.Write(content[:m[0]]) |
||||||
|
buf.Write(content[m[1]:]) |
||||||
|
} else { |
||||||
|
buf.Write(content) |
||||||
|
} |
||||||
|
// Write it to the file.
|
||||||
|
if bytes.Equal(content, buf.Bytes()) { |
||||||
|
fmt.Println("skipping (no changes)", info.file) |
||||||
|
return |
||||||
|
} |
||||||
|
fmt.Println("writing", info.ShortLicense(), info.file) |
||||||
|
if err := ioutil.WriteFile(info.file, buf.Bytes(), fi.Mode()); err != nil { |
||||||
|
log.Fatalf("error writing %s: %v", info.file, err) |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
func doLines(cmd *exec.Cmd, f func(string)) error { |
||||||
|
stdout, err := cmd.StdoutPipe() |
||||||
|
if err != nil { |
||||||
|
return err |
||||||
|
} |
||||||
|
if err := cmd.Start(); err != nil { |
||||||
|
return err |
||||||
|
} |
||||||
|
s := bufio.NewScanner(stdout) |
||||||
|
for s.Scan() { |
||||||
|
f(s.Text()) |
||||||
|
} |
||||||
|
if s.Err() != nil { |
||||||
|
return s.Err() |
||||||
|
} |
||||||
|
if err := cmd.Wait(); err != nil { |
||||||
|
return fmt.Errorf("%v (for %s)", err, strings.Join(cmd.Args, " ")) |
||||||
|
} |
||||||
|
return nil |
||||||
|
} |
@ -1,6 +0,0 @@ |
|||||||
package main |
|
||||||
|
|
||||||
var ( |
|
||||||
globalRegistrar = `var GlobalRegistrar = web3.eth.contract([{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"name","outputs":[{"name":"o_name","type":"bytes32"}],"type":"function"},{"constant":true,"inputs":[{"name":"_name","type":"bytes32"}],"name":"owner","outputs":[{"name":"","type":"address"}],"type":"function"},{"constant":true,"inputs":[{"name":"_name","type":"bytes32"}],"name":"content","outputs":[{"name":"","type":"bytes32"}],"type":"function"},{"constant":true,"inputs":[{"name":"_name","type":"bytes32"}],"name":"addr","outputs":[{"name":"","type":"address"}],"type":"function"},{"constant":false,"inputs":[{"name":"_name","type":"bytes32"}],"name":"reserve","outputs":[],"type":"function"},{"constant":true,"inputs":[{"name":"_name","type":"bytes32"}],"name":"subRegistrar","outputs":[{"name":"o_subRegistrar","type":"address"}],"type":"function"},{"constant":false,"inputs":[{"name":"_name","type":"bytes32"},{"name":"_newOwner","type":"address"}],"name":"transfer","outputs":[],"type":"function"},{"constant":false,"inputs":[{"name":"_name","type":"bytes32"},{"name":"_registrar","type":"address"}],"name":"setSubRegistrar","outputs":[],"type":"function"},{"constant":false,"inputs":[],"name":"Registrar","outputs":[],"type":"function"},{"constant":false,"inputs":[{"name":"_name","type":"bytes32"},{"name":"_a","type":"address"},{"name":"_primary","type":"bool"}],"name":"setAddress","outputs":[],"type":"function"},{"constant":false,"inputs":[{"name":"_name","type":"bytes32"},{"name":"_content","type":"bytes32"}],"name":"setContent","outputs":[],"type":"function"},{"constant":false,"inputs":[{"name":"_name","type":"bytes32"}],"name":"disown","outputs":[],"type":"function"},{"constant":true,"inputs":[{"name":"_name","type":"bytes32"}],"name":"register","outputs":[{"name":"","type":"address"}],"type":"function"},{"anonymous":false,"inputs":[{"indexed":true,"name":"name","type":"bytes32"}],"name":"Changed","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"name","type":"bytes32"},{"indexed":true,"name":"addr","type":"address"}],"name":"PrimaryChanged","type":"event"}]);` |
|
||||||
globalRegistrarAddr = "0xc6d9d2cd449a754c494264e1809c50e34d64562b" |
|
||||||
) |
|
@ -0,0 +1,253 @@ |
|||||||
|
package natspec |
||||||
|
|
||||||
|
import ( |
||||||
|
"fmt" |
||||||
|
"io/ioutil" |
||||||
|
"os" |
||||||
|
"strings" |
||||||
|
"testing" |
||||||
|
|
||||||
|
"github.com/ethereum/go-ethereum/accounts" |
||||||
|
"github.com/ethereum/go-ethereum/common" |
||||||
|
"github.com/ethereum/go-ethereum/common/docserver" |
||||||
|
"github.com/ethereum/go-ethereum/common/registrar" |
||||||
|
"github.com/ethereum/go-ethereum/core" |
||||||
|
"github.com/ethereum/go-ethereum/core/state" |
||||||
|
"github.com/ethereum/go-ethereum/crypto" |
||||||
|
"github.com/ethereum/go-ethereum/eth" |
||||||
|
xe "github.com/ethereum/go-ethereum/xeth" |
||||||
|
) |
||||||
|
|
||||||
|
const ( |
||||||
|
testBalance = "10000000000000000000" |
||||||
|
|
||||||
|
testFileName = "long_file_name_for_testing_registration_of_URLs_longer_than_32_bytes.content" |
||||||
|
|
||||||
|
testNotice = "Register key `utils.toHex(_key)` <- content `utils.toHex(_content)`" |
||||||
|
|
||||||
|
testExpNotice = "Register key 0xadd1a7d961cff0242089674ec2ef6fca671ab15e1fe80e38859fc815b98d88ab <- content 0xb3a2dea218de5d8bbe6c4645aadbf67b5ab00ecb1a9ec95dbdad6a0eed3e41a7" |
||||||
|
|
||||||
|
testExpNotice2 = `About to submit transaction (NatSpec notice error: abi key does not match any method): {"params":[{"to":"%s","data": "0x31e12c20"}]}` |
||||||
|
|
||||||
|
testExpNotice3 = `About to submit transaction (no NatSpec info found for contract: content hash not found for '0x1392c62d05b2d149e22a339c531157ae06b44d39a674cce500064b12b9aeb019'): {"params":[{"to":"%s","data": "0x300a3bbfb3a2dea218de5d8bbe6c4645aadbf67b5ab00ecb1a9ec95dbdad6a0eed3e41a7000000000000000000000000000000000000000000000000000000000000000000000000000000000000000066696c653a2f2f2f746573742e636f6e74656e74"}]}` |
||||||
|
) |
||||||
|
|
||||||
|
const ( |
||||||
|
testUserDoc = ` |
||||||
|
{ |
||||||
|
"methods": { |
||||||
|
"register(uint256,uint256)": { |
||||||
|
"notice": "` + testNotice + `" |
||||||
|
} |
||||||
|
}, |
||||||
|
"invariants": [ |
||||||
|
{ "notice": "" } |
||||||
|
], |
||||||
|
"construction": [ |
||||||
|
{ "notice": "" } |
||||||
|
] |
||||||
|
} |
||||||
|
` |
||||||
|
testAbiDefinition = ` |
||||||
|
[{ |
||||||
|
"name": "register", |
||||||
|
"constant": false, |
||||||
|
"type": "function", |
||||||
|
"inputs": [{ |
||||||
|
"name": "_key", |
||||||
|
"type": "uint256" |
||||||
|
}, { |
||||||
|
"name": "_content", |
||||||
|
"type": "uint256" |
||||||
|
}], |
||||||
|
"outputs": [] |
||||||
|
}] |
||||||
|
` |
||||||
|
|
||||||
|
testContractInfo = ` |
||||||
|
{ |
||||||
|
"userDoc": ` + testUserDoc + `, |
||||||
|
"abiDefinition": ` + testAbiDefinition + ` |
||||||
|
} |
||||||
|
` |
||||||
|
) |
||||||
|
|
||||||
|
type testFrontend struct { |
||||||
|
t *testing.T |
||||||
|
ethereum *eth.Ethereum |
||||||
|
xeth *xe.XEth |
||||||
|
coinbase common.Address |
||||||
|
stateDb *state.StateDB |
||||||
|
txc uint64 |
||||||
|
lastConfirm string |
||||||
|
wantNatSpec bool |
||||||
|
} |
||||||
|
|
||||||
|
func (self *testFrontend) UnlockAccount(acc []byte) bool { |
||||||
|
self.ethereum.AccountManager().Unlock(common.BytesToAddress(acc), "password") |
||||||
|
return true |
||||||
|
} |
||||||
|
|
||||||
|
func (self *testFrontend) ConfirmTransaction(tx string) bool { |
||||||
|
if self.wantNatSpec { |
||||||
|
ds := docserver.New("/tmp/") |
||||||
|
self.lastConfirm = GetNotice(self.xeth, tx, ds) |
||||||
|
} |
||||||
|
return true |
||||||
|
} |
||||||
|
|
||||||
|
func testEth(t *testing.T) (ethereum *eth.Ethereum, err error) { |
||||||
|
|
||||||
|
os.RemoveAll("/tmp/eth-natspec/") |
||||||
|
|
||||||
|
err = os.MkdirAll("/tmp/eth-natspec/keystore", os.ModePerm) |
||||||
|
if err != nil { |
||||||
|
panic(err) |
||||||
|
} |
||||||
|
|
||||||
|
// create a testAddress
|
||||||
|
ks := crypto.NewKeyStorePassphrase("/tmp/eth-natspec/keystore") |
||||||
|
am := accounts.NewManager(ks) |
||||||
|
testAccount, err := am.NewAccount("password") |
||||||
|
if err != nil { |
||||||
|
panic(err) |
||||||
|
} |
||||||
|
testAddress := strings.TrimPrefix(testAccount.Address.Hex(), "0x") |
||||||
|
|
||||||
|
// set up mock genesis with balance on the testAddress
|
||||||
|
core.GenesisAccounts = []byte(`{ |
||||||
|
"` + testAddress + `": {"balance": "` + testBalance + `"} |
||||||
|
}`) |
||||||
|
|
||||||
|
// only use minimalistic stack with no networking
|
||||||
|
ethereum, err = eth.New(ð.Config{ |
||||||
|
DataDir: "/tmp/eth-natspec", |
||||||
|
AccountManager: am, |
||||||
|
MaxPeers: 0, |
||||||
|
}) |
||||||
|
|
||||||
|
if err != nil { |
||||||
|
panic(err) |
||||||
|
} |
||||||
|
|
||||||
|
return |
||||||
|
} |
||||||
|
|
||||||
|
func testInit(t *testing.T) (self *testFrontend) { |
||||||
|
// initialise and start minimal ethereum stack
|
||||||
|
ethereum, err := testEth(t) |
||||||
|
if err != nil { |
||||||
|
t.Errorf("error creating ethereum: %v", err) |
||||||
|
return |
||||||
|
} |
||||||
|
err = ethereum.Start() |
||||||
|
if err != nil { |
||||||
|
t.Errorf("error starting ethereum: %v", err) |
||||||
|
return |
||||||
|
} |
||||||
|
|
||||||
|
// mock frontend
|
||||||
|
self = &testFrontend{t: t, ethereum: ethereum} |
||||||
|
self.xeth = xe.New(ethereum, self) |
||||||
|
|
||||||
|
addr, _ := ethereum.Etherbase() |
||||||
|
self.coinbase = addr |
||||||
|
self.stateDb = self.ethereum.ChainManager().State().Copy() |
||||||
|
|
||||||
|
// initialise the registry contracts
|
||||||
|
reg := registrar.New(self.xeth) |
||||||
|
err = reg.SetHashReg("", addr) |
||||||
|
if err != nil { |
||||||
|
t.Errorf("error creating HashReg: %v", err) |
||||||
|
} |
||||||
|
err = reg.SetUrlHint("", addr) |
||||||
|
if err != nil { |
||||||
|
t.Errorf("error creating UrlHint: %v", err) |
||||||
|
} |
||||||
|
self.applyTxs() |
||||||
|
|
||||||
|
return |
||||||
|
|
||||||
|
} |
||||||
|
|
||||||
|
// this is needed for transaction to be applied to the state in testing
|
||||||
|
// the heavy lifing is done in XEth.ApplyTestTxs
|
||||||
|
// this is fragile,
|
||||||
|
// and does process leaking since xeth loops cannot quit safely
|
||||||
|
// should be replaced by proper mining with testDAG for easy full integration tests
|
||||||
|
func (self *testFrontend) applyTxs() { |
||||||
|
self.txc, self.xeth = self.xeth.ApplyTestTxs(self.stateDb, self.coinbase, self.txc) |
||||||
|
return |
||||||
|
} |
||||||
|
|
||||||
|
// end to end test
|
||||||
|
func TestNatspecE2E(t *testing.T) { |
||||||
|
t.Skip() |
||||||
|
|
||||||
|
tf := testInit(t) |
||||||
|
defer tf.ethereum.Stop() |
||||||
|
|
||||||
|
// create a contractInfo file (mock cloud-deployed contract metadocs)
|
||||||
|
// incidentally this is the info for the registry contract itself
|
||||||
|
ioutil.WriteFile("/tmp/"+testFileName, []byte(testContractInfo), os.ModePerm) |
||||||
|
dochash := common.BytesToHash(crypto.Sha3([]byte(testContractInfo))) |
||||||
|
|
||||||
|
// take the codehash for the contract we wanna test
|
||||||
|
// codehex := tf.xeth.CodeAt(registar.HashRegAddr)
|
||||||
|
codeb := tf.xeth.CodeAtBytes(registrar.HashRegAddr) |
||||||
|
codehash := common.BytesToHash(crypto.Sha3(codeb)) |
||||||
|
|
||||||
|
// use resolver to register codehash->dochash->url
|
||||||
|
// test if globalregistry works
|
||||||
|
// registrar.HashRefAddr = "0x0"
|
||||||
|
// registrar.UrlHintAddr = "0x0"
|
||||||
|
reg := registrar.New(tf.xeth) |
||||||
|
_, err := reg.SetHashToHash(tf.coinbase, codehash, dochash) |
||||||
|
if err != nil { |
||||||
|
t.Errorf("error registering: %v", err) |
||||||
|
} |
||||||
|
_, err = reg.SetUrlToHash(tf.coinbase, dochash, "file:///"+testFileName) |
||||||
|
if err != nil { |
||||||
|
t.Errorf("error registering: %v", err) |
||||||
|
} |
||||||
|
// apply txs to the state
|
||||||
|
tf.applyTxs() |
||||||
|
|
||||||
|
// NatSpec info for register method of HashReg contract installed
|
||||||
|
// now using the same transactions to check confirm messages
|
||||||
|
|
||||||
|
tf.wantNatSpec = true // this is set so now the backend uses natspec confirmation
|
||||||
|
_, err = reg.SetHashToHash(tf.coinbase, codehash, dochash) |
||||||
|
if err != nil { |
||||||
|
t.Errorf("error calling contract registry: %v", err) |
||||||
|
} |
||||||
|
|
||||||
|
fmt.Printf("GlobalRegistrar: %v, HashReg: %v, UrlHint: %v\n", registrar.GlobalRegistrarAddr, registrar.HashRegAddr, registrar.UrlHintAddr) |
||||||
|
if tf.lastConfirm != testExpNotice { |
||||||
|
t.Errorf("Wrong confirm message. expected '%v', got '%v'", testExpNotice, tf.lastConfirm) |
||||||
|
} |
||||||
|
|
||||||
|
// test unknown method
|
||||||
|
exp := fmt.Sprintf(testExpNotice2, registrar.HashRegAddr) |
||||||
|
_, err = reg.SetOwner(tf.coinbase) |
||||||
|
if err != nil { |
||||||
|
t.Errorf("error setting owner: %v", err) |
||||||
|
} |
||||||
|
|
||||||
|
if tf.lastConfirm != exp { |
||||||
|
t.Errorf("Wrong confirm message, expected '%v', got '%v'", exp, tf.lastConfirm) |
||||||
|
} |
||||||
|
|
||||||
|
// test unknown contract
|
||||||
|
exp = fmt.Sprintf(testExpNotice3, registrar.UrlHintAddr) |
||||||
|
|
||||||
|
_, err = reg.SetUrlToHash(tf.coinbase, dochash, "file:///test.content") |
||||||
|
if err != nil { |
||||||
|
t.Errorf("error registering: %v", err) |
||||||
|
} |
||||||
|
|
||||||
|
if tf.lastConfirm != exp { |
||||||
|
t.Errorf("Wrong confirm message, expected '%v', got '%v'", exp, tf.lastConfirm) |
||||||
|
} |
||||||
|
|
||||||
|
} |
File diff suppressed because one or more lines are too long
File diff suppressed because one or more lines are too long
@ -0,0 +1,48 @@ |
|||||||
|
// Copyright 2015 The go-ethereum Authors
|
||||||
|
// This file is part of go-ethereum.
|
||||||
|
//
|
||||||
|
// go-ethereum is free software: you can redistribute it and/or modify
|
||||||
|
// it under the terms of the GNU Lesser General Public License as published by
|
||||||
|
// the Free Software Foundation, either version 3 of the License, or
|
||||||
|
// (at your option) any later version.
|
||||||
|
//
|
||||||
|
// go-ethereum 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 Lesser General Public License for more details.
|
||||||
|
//
|
||||||
|
// You should have received a copy of the GNU Lesser General Public License
|
||||||
|
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
|
||||||
|
package ethreg |
||||||
|
|
||||||
|
import ( |
||||||
|
"math/big" |
||||||
|
|
||||||
|
"github.com/ethereum/go-ethereum/common/registrar" |
||||||
|
"github.com/ethereum/go-ethereum/xeth" |
||||||
|
) |
||||||
|
|
||||||
|
// implements a versioned Registrar on an archiving full node
|
||||||
|
type EthReg struct { |
||||||
|
backend *xeth.XEth |
||||||
|
registry *registrar.Registrar |
||||||
|
} |
||||||
|
|
||||||
|
func New(xe *xeth.XEth) (self *EthReg) { |
||||||
|
self = &EthReg{backend: xe} |
||||||
|
self.registry = registrar.New(xe) |
||||||
|
return |
||||||
|
} |
||||||
|
|
||||||
|
func (self *EthReg) Registry() *registrar.Registrar { |
||||||
|
return self.registry |
||||||
|
} |
||||||
|
|
||||||
|
func (self *EthReg) Resolver(n *big.Int) *registrar.Registrar { |
||||||
|
xe := self.backend |
||||||
|
if n != nil { |
||||||
|
xe = self.backend.AtStateNum(n.Int64()) |
||||||
|
} |
||||||
|
return registrar.New(xe) |
||||||
|
} |
@ -0,0 +1,408 @@ |
|||||||
|
// Copyright 2015 The go-ethereum Authors
|
||||||
|
// This file is part of go-ethereum.
|
||||||
|
//
|
||||||
|
// go-ethereum is free software: you can redistribute it and/or modify
|
||||||
|
// it under the terms of the GNU Lesser General Public License as published by
|
||||||
|
// the Free Software Foundation, either version 3 of the License, or
|
||||||
|
// (at your option) any later version.
|
||||||
|
//
|
||||||
|
// go-ethereum 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 Lesser General Public License for more details.
|
||||||
|
//
|
||||||
|
// You should have received a copy of the GNU Lesser General Public License
|
||||||
|
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
|
||||||
|
package registrar |
||||||
|
|
||||||
|
import ( |
||||||
|
"encoding/binary" |
||||||
|
"fmt" |
||||||
|
"math/big" |
||||||
|
"regexp" |
||||||
|
|
||||||
|
"github.com/ethereum/go-ethereum/common" |
||||||
|
"github.com/ethereum/go-ethereum/crypto" |
||||||
|
"github.com/ethereum/go-ethereum/logger" |
||||||
|
"github.com/ethereum/go-ethereum/logger/glog" |
||||||
|
) |
||||||
|
|
||||||
|
/* |
||||||
|
Registrar implements the Ethereum name registrar services mapping |
||||||
|
- arbitrary strings to ethereum addresses |
||||||
|
- hashes to hashes |
||||||
|
- hashes to arbitrary strings |
||||||
|
(likely will provide lookup service for all three) |
||||||
|
|
||||||
|
The Registrar is used by |
||||||
|
* the roundtripper transport implementation of |
||||||
|
url schemes to resolve domain names and services that register these names |
||||||
|
* contract info retrieval (NatSpec). |
||||||
|
|
||||||
|
The Registrar uses 3 contracts on the blockchain: |
||||||
|
* GlobalRegistrar: Name (string) -> Address (Owner) |
||||||
|
* HashReg : Key Hash (hash of domain name or contract code) -> Content Hash |
||||||
|
* UrlHint : Content Hash -> Url Hint |
||||||
|
|
||||||
|
These contracts are (currently) not included in the genesis block. |
||||||
|
Each Set<X> needs to be called once on each blockchain/network once. |
||||||
|
|
||||||
|
Contract addresses need to be set (HashReg and UrlHint retrieved from the global |
||||||
|
registrar the first time any Registrar method is called in a client session |
||||||
|
|
||||||
|
So the caller needs to make sure the relevant environment initialised the desired |
||||||
|
contracts |
||||||
|
*/ |
||||||
|
var ( |
||||||
|
UrlHintAddr = "0x0" |
||||||
|
HashRegAddr = "0x0" |
||||||
|
GlobalRegistrarAddr = "0x0" |
||||||
|
// GlobalRegistrarAddr = "0xc6d9d2cd449a754c494264e1809c50e34d64562b"
|
||||||
|
|
||||||
|
zero = regexp.MustCompile("^(0x)?0*$") |
||||||
|
) |
||||||
|
|
||||||
|
const ( |
||||||
|
trueHex = "0000000000000000000000000000000000000000000000000000000000000001" |
||||||
|
falseHex = "0000000000000000000000000000000000000000000000000000000000000000" |
||||||
|
) |
||||||
|
|
||||||
|
func abiSignature(s string) string { |
||||||
|
return common.ToHex(crypto.Sha3([]byte(s))[:4]) |
||||||
|
} |
||||||
|
|
||||||
|
var ( |
||||||
|
HashRegName = "HashReg" |
||||||
|
UrlHintName = "UrlHint" |
||||||
|
|
||||||
|
registerContentHashAbi = abiSignature("register(uint256,uint256)") |
||||||
|
registerUrlAbi = abiSignature("register(uint256,uint8,uint256)") |
||||||
|
setOwnerAbi = abiSignature("setowner()") |
||||||
|
reserveAbi = abiSignature("reserve(bytes32)") |
||||||
|
resolveAbi = abiSignature("addr(bytes32)") |
||||||
|
registerAbi = abiSignature("setAddress(bytes32,address,bool)") |
||||||
|
addressAbiPrefix = falseHex[:24] |
||||||
|
) |
||||||
|
|
||||||
|
// Registrar's backend is defined as an interface (implemented by xeth, but could be remote)
|
||||||
|
type Backend interface { |
||||||
|
StorageAt(string, string) string |
||||||
|
Transact(fromStr, toStr, nonceStr, valueStr, gasStr, gasPriceStr, codeStr string) (string, error) |
||||||
|
Call(fromStr, toStr, valueStr, gasStr, gasPriceStr, codeStr string) (string, string, error) |
||||||
|
} |
||||||
|
|
||||||
|
// TODO Registrar should also just implement The Resolver and Registry interfaces
|
||||||
|
// Simplify for now.
|
||||||
|
type VersionedRegistrar interface { |
||||||
|
Resolver(*big.Int) *Registrar |
||||||
|
Registry() *Registrar |
||||||
|
} |
||||||
|
|
||||||
|
type Registrar struct { |
||||||
|
backend Backend |
||||||
|
} |
||||||
|
|
||||||
|
func New(b Backend) (res *Registrar) { |
||||||
|
res = &Registrar{b} |
||||||
|
return |
||||||
|
} |
||||||
|
|
||||||
|
func (self *Registrar) SetGlobalRegistrar(namereg string, addr common.Address) (txhash string, err error) { |
||||||
|
if namereg != "" { |
||||||
|
GlobalRegistrarAddr = namereg |
||||||
|
return |
||||||
|
} |
||||||
|
if GlobalRegistrarAddr == "0x0" || GlobalRegistrarAddr == "0x" { |
||||||
|
if (addr == common.Address{}) { |
||||||
|
err = fmt.Errorf("GlobalRegistrar address not found and sender for creation not given") |
||||||
|
return |
||||||
|
} else { |
||||||
|
txhash, err = self.backend.Transact(addr.Hex(), "", "", "", "800000", "", GlobalRegistrarCode) |
||||||
|
if err != nil { |
||||||
|
err = fmt.Errorf("GlobalRegistrar address not found and sender for creation failed: %v", err) |
||||||
|
return |
||||||
|
} |
||||||
|
} |
||||||
|
} |
||||||
|
return |
||||||
|
} |
||||||
|
|
||||||
|
func (self *Registrar) SetHashReg(hashreg string, addr common.Address) (txhash string, err error) { |
||||||
|
if hashreg != "" { |
||||||
|
HashRegAddr = hashreg |
||||||
|
} else { |
||||||
|
if !zero.MatchString(HashRegAddr) { |
||||||
|
return |
||||||
|
} |
||||||
|
nameHex, extra := encodeName(HashRegName, 2) |
||||||
|
hashRegAbi := resolveAbi + nameHex + extra |
||||||
|
glog.V(logger.Detail).Infof("\ncall HashRegAddr %v with %v\n", GlobalRegistrarAddr, hashRegAbi) |
||||||
|
var res string |
||||||
|
res, _, err = self.backend.Call("", GlobalRegistrarAddr, "", "", "", hashRegAbi) |
||||||
|
if len(res) >= 40 { |
||||||
|
HashRegAddr = "0x" + res[len(res)-40:len(res)] |
||||||
|
} |
||||||
|
if err != nil || zero.MatchString(HashRegAddr) { |
||||||
|
if (addr == common.Address{}) { |
||||||
|
err = fmt.Errorf("HashReg address not found and sender for creation not given") |
||||||
|
return |
||||||
|
} |
||||||
|
|
||||||
|
txhash, err = self.backend.Transact(addr.Hex(), "", "", "", "", "", HashRegCode) |
||||||
|
if err != nil { |
||||||
|
err = fmt.Errorf("HashReg address not found and sender for creation failed: %v", err) |
||||||
|
} |
||||||
|
glog.V(logger.Detail).Infof("created HashRegAddr @ txhash %v\n", txhash) |
||||||
|
} else { |
||||||
|
glog.V(logger.Detail).Infof("HashRegAddr found at @ %v\n", HashRegAddr) |
||||||
|
return |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
return |
||||||
|
} |
||||||
|
|
||||||
|
func (self *Registrar) SetUrlHint(urlhint string, addr common.Address) (txhash string, err error) { |
||||||
|
if urlhint != "" { |
||||||
|
UrlHintAddr = urlhint |
||||||
|
} else { |
||||||
|
if !zero.MatchString(UrlHintAddr) { |
||||||
|
return |
||||||
|
} |
||||||
|
nameHex, extra := encodeName(UrlHintName, 2) |
||||||
|
urlHintAbi := resolveAbi + nameHex + extra |
||||||
|
glog.V(logger.Detail).Infof("UrlHint address query data: %s to %s", urlHintAbi, GlobalRegistrarAddr) |
||||||
|
var res string |
||||||
|
res, _, err = self.backend.Call("", GlobalRegistrarAddr, "", "", "", urlHintAbi) |
||||||
|
if len(res) >= 40 { |
||||||
|
UrlHintAddr = "0x" + res[len(res)-40:len(res)] |
||||||
|
} |
||||||
|
if err != nil || zero.MatchString(UrlHintAddr) { |
||||||
|
if (addr == common.Address{}) { |
||||||
|
err = fmt.Errorf("UrlHint address not found and sender for creation not given") |
||||||
|
return |
||||||
|
} |
||||||
|
txhash, err = self.backend.Transact(addr.Hex(), "", "", "", "210000", "", UrlHintCode) |
||||||
|
if err != nil { |
||||||
|
err = fmt.Errorf("UrlHint address not found and sender for creation failed: %v", err) |
||||||
|
} |
||||||
|
glog.V(logger.Detail).Infof("created UrlHint @ txhash %v\n", txhash) |
||||||
|
} else { |
||||||
|
glog.V(logger.Detail).Infof("UrlHint found @ %v\n", HashRegAddr) |
||||||
|
return |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
return |
||||||
|
} |
||||||
|
|
||||||
|
// ReserveName(from, name) reserves name for the sender address in the globalRegistrar
|
||||||
|
// the tx needs to be mined to take effect
|
||||||
|
func (self *Registrar) ReserveName(address common.Address, name string) (txh string, err error) { |
||||||
|
nameHex, extra := encodeName(name, 2) |
||||||
|
abi := reserveAbi + nameHex + extra |
||||||
|
glog.V(logger.Detail).Infof("Reserve data: %s", abi) |
||||||
|
return self.backend.Transact( |
||||||
|
address.Hex(), |
||||||
|
GlobalRegistrarAddr, |
||||||
|
"", "", "", "", |
||||||
|
abi, |
||||||
|
) |
||||||
|
} |
||||||
|
|
||||||
|
// SetAddressToName(from, name, addr) will set the Address to address for name
|
||||||
|
// in the globalRegistrar using from as the sender of the transaction
|
||||||
|
// the tx needs to be mined to take effect
|
||||||
|
func (self *Registrar) SetAddressToName(from common.Address, name string, address common.Address) (txh string, err error) { |
||||||
|
nameHex, extra := encodeName(name, 6) |
||||||
|
addrHex := encodeAddress(address) |
||||||
|
|
||||||
|
abi := registerAbi + nameHex + addrHex + trueHex + extra |
||||||
|
glog.V(logger.Detail).Infof("SetAddressToName data: %s to %s ", abi, GlobalRegistrarAddr) |
||||||
|
|
||||||
|
return self.backend.Transact( |
||||||
|
from.Hex(), |
||||||
|
GlobalRegistrarAddr, |
||||||
|
"", "", "", "", |
||||||
|
abi, |
||||||
|
) |
||||||
|
} |
||||||
|
|
||||||
|
// NameToAddr(from, name) queries the registrar for the address on name
|
||||||
|
func (self *Registrar) NameToAddr(from common.Address, name string) (address common.Address, err error) { |
||||||
|
nameHex, extra := encodeName(name, 2) |
||||||
|
abi := resolveAbi + nameHex + extra |
||||||
|
glog.V(logger.Detail).Infof("NameToAddr data: %s", abi) |
||||||
|
res, _, err := self.backend.Call( |
||||||
|
from.Hex(), |
||||||
|
GlobalRegistrarAddr, |
||||||
|
"", "", "", |
||||||
|
abi, |
||||||
|
) |
||||||
|
if err != nil { |
||||||
|
return |
||||||
|
} |
||||||
|
address = common.HexToAddress(res) |
||||||
|
return |
||||||
|
} |
||||||
|
|
||||||
|
// called as first step in the registration process on HashReg
|
||||||
|
func (self *Registrar) SetOwner(address common.Address) (txh string, err error) { |
||||||
|
return self.backend.Transact( |
||||||
|
address.Hex(), |
||||||
|
HashRegAddr, |
||||||
|
"", "", "", "", |
||||||
|
setOwnerAbi, |
||||||
|
) |
||||||
|
} |
||||||
|
|
||||||
|
// registers some content hash to a key/code hash
|
||||||
|
// e.g., the contract Info combined Json Doc's ContentHash
|
||||||
|
// to CodeHash of a contract or hash of a domain
|
||||||
|
func (self *Registrar) SetHashToHash(address common.Address, codehash, dochash common.Hash) (txh string, err error) { |
||||||
|
_, err = self.SetOwner(address) |
||||||
|
if err != nil { |
||||||
|
return |
||||||
|
} |
||||||
|
codehex := common.Bytes2Hex(codehash[:]) |
||||||
|
dochex := common.Bytes2Hex(dochash[:]) |
||||||
|
|
||||||
|
data := registerContentHashAbi + codehex + dochex |
||||||
|
glog.V(logger.Detail).Infof("SetHashToHash data: %s sent to %v\n", data, HashRegAddr) |
||||||
|
return self.backend.Transact( |
||||||
|
address.Hex(), |
||||||
|
HashRegAddr, |
||||||
|
"", "", "", "", |
||||||
|
data, |
||||||
|
) |
||||||
|
} |
||||||
|
|
||||||
|
// SetUrlToHash(from, hash, url) registers a url to a content hash so that the content can be fetched
|
||||||
|
// address is used as sender for the transaction and will be the owner of a new
|
||||||
|
// registry entry on first time use
|
||||||
|
// FIXME: silently doing nothing if sender is not the owner
|
||||||
|
// note that with content addressed storage, this step is no longer necessary
|
||||||
|
func (self *Registrar) SetUrlToHash(address common.Address, hash common.Hash, url string) (txh string, err error) { |
||||||
|
hashHex := common.Bytes2Hex(hash[:]) |
||||||
|
var urlHex string |
||||||
|
urlb := []byte(url) |
||||||
|
var cnt byte |
||||||
|
n := len(urlb) |
||||||
|
|
||||||
|
for n > 0 { |
||||||
|
if n > 32 { |
||||||
|
n = 32 |
||||||
|
} |
||||||
|
urlHex = common.Bytes2Hex(urlb[:n]) |
||||||
|
urlb = urlb[n:] |
||||||
|
n = len(urlb) |
||||||
|
bcnt := make([]byte, 32) |
||||||
|
bcnt[31] = cnt |
||||||
|
data := registerUrlAbi + |
||||||
|
hashHex + |
||||||
|
common.Bytes2Hex(bcnt) + |
||||||
|
common.Bytes2Hex(common.Hex2BytesFixed(urlHex, 32)) |
||||||
|
txh, err = self.backend.Transact( |
||||||
|
address.Hex(), |
||||||
|
UrlHintAddr, |
||||||
|
"", "", "", "", |
||||||
|
data, |
||||||
|
) |
||||||
|
if err != nil { |
||||||
|
return |
||||||
|
} |
||||||
|
cnt++ |
||||||
|
} |
||||||
|
return |
||||||
|
} |
||||||
|
|
||||||
|
// HashToHash(key) resolves contenthash for key (a hash) using HashReg
|
||||||
|
// resolution is costless non-transactional
|
||||||
|
// implemented as direct retrieval from db
|
||||||
|
func (self *Registrar) HashToHash(khash common.Hash) (chash common.Hash, err error) { |
||||||
|
// look up in hashReg
|
||||||
|
at := HashRegAddr[2:] |
||||||
|
key := storageAddress(storageMapping(storageIdx2Addr(1), khash[:])) |
||||||
|
hash := self.backend.StorageAt(at, key) |
||||||
|
|
||||||
|
if hash == "0x0" || len(hash) < 3 || (hash == common.Hash{}.Hex()) { |
||||||
|
err = fmt.Errorf("content hash not found for '%v'", khash.Hex()) |
||||||
|
return |
||||||
|
} |
||||||
|
copy(chash[:], common.Hex2BytesFixed(hash[2:], 32)) |
||||||
|
return |
||||||
|
} |
||||||
|
|
||||||
|
// HashToUrl(contenthash) resolves the url for contenthash using UrlHint
|
||||||
|
// resolution is costless non-transactional
|
||||||
|
// implemented as direct retrieval from db
|
||||||
|
// if we use content addressed storage, this step is no longer necessary
|
||||||
|
func (self *Registrar) HashToUrl(chash common.Hash) (uri string, err error) { |
||||||
|
// look up in URL reg
|
||||||
|
var str string = " " |
||||||
|
var idx uint32 |
||||||
|
for len(str) > 0 { |
||||||
|
mapaddr := storageMapping(storageIdx2Addr(1), chash[:]) |
||||||
|
key := storageAddress(storageFixedArray(mapaddr, storageIdx2Addr(idx))) |
||||||
|
hex := self.backend.StorageAt(UrlHintAddr[2:], key) |
||||||
|
str = string(common.Hex2Bytes(hex[2:])) |
||||||
|
l := 0 |
||||||
|
for (l < len(str)) && (str[l] == 0) { |
||||||
|
l++ |
||||||
|
} |
||||||
|
|
||||||
|
str = str[l:] |
||||||
|
uri = uri + str |
||||||
|
idx++ |
||||||
|
} |
||||||
|
|
||||||
|
if len(uri) == 0 { |
||||||
|
err = fmt.Errorf("GetURLhint: URL hint not found for '%v'", chash.Hex()) |
||||||
|
} |
||||||
|
return |
||||||
|
} |
||||||
|
|
||||||
|
func storageIdx2Addr(varidx uint32) []byte { |
||||||
|
data := make([]byte, 32) |
||||||
|
binary.BigEndian.PutUint32(data[28:32], varidx) |
||||||
|
return data |
||||||
|
} |
||||||
|
|
||||||
|
func storageMapping(addr, key []byte) []byte { |
||||||
|
data := make([]byte, 64) |
||||||
|
copy(data[0:32], key[0:32]) |
||||||
|
copy(data[32:64], addr[0:32]) |
||||||
|
sha := crypto.Sha3(data) |
||||||
|
return sha |
||||||
|
} |
||||||
|
|
||||||
|
func storageFixedArray(addr, idx []byte) []byte { |
||||||
|
var carry byte |
||||||
|
for i := 31; i >= 0; i-- { |
||||||
|
var b byte = addr[i] + idx[i] + carry |
||||||
|
if b < addr[i] { |
||||||
|
carry = 1 |
||||||
|
} else { |
||||||
|
carry = 0 |
||||||
|
} |
||||||
|
addr[i] = b |
||||||
|
} |
||||||
|
return addr |
||||||
|
} |
||||||
|
|
||||||
|
func storageAddress(addr []byte) string { |
||||||
|
return common.ToHex(addr) |
||||||
|
} |
||||||
|
|
||||||
|
func encodeAddress(address common.Address) string { |
||||||
|
return addressAbiPrefix + address.Hex()[2:] |
||||||
|
} |
||||||
|
|
||||||
|
func encodeName(name string, index uint8) (string, string) { |
||||||
|
extra := common.Bytes2Hex([]byte(name)) |
||||||
|
if len(name) > 32 { |
||||||
|
return fmt.Sprintf("%064x", index), extra |
||||||
|
} |
||||||
|
return extra + falseHex[len(extra):], "" |
||||||
|
} |
@ -0,0 +1,112 @@ |
|||||||
|
// Copyright 2015 The go-ethereum Authors
|
||||||
|
// This file is part of go-ethereum.
|
||||||
|
//
|
||||||
|
// go-ethereum is free software: you can redistribute it and/or modify
|
||||||
|
// it under the terms of the GNU Lesser General Public License as published by
|
||||||
|
// the Free Software Foundation, either version 3 of the License, or
|
||||||
|
// (at your option) any later version.
|
||||||
|
//
|
||||||
|
// go-ethereum 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 Lesser General Public License for more details.
|
||||||
|
//
|
||||||
|
// You should have received a copy of the GNU Lesser General Public License
|
||||||
|
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
|
||||||
|
package registrar |
||||||
|
|
||||||
|
import ( |
||||||
|
"testing" |
||||||
|
|
||||||
|
"github.com/ethereum/go-ethereum/common" |
||||||
|
"github.com/ethereum/go-ethereum/crypto" |
||||||
|
) |
||||||
|
|
||||||
|
type testBackend struct { |
||||||
|
// contracts mock
|
||||||
|
contracts map[string](map[string]string) |
||||||
|
} |
||||||
|
|
||||||
|
var ( |
||||||
|
text = "test" |
||||||
|
codehash = common.StringToHash("1234") |
||||||
|
hash = common.BytesToHash(crypto.Sha3([]byte(text))) |
||||||
|
url = "bzz://bzzhash/my/path/contr.act" |
||||||
|
) |
||||||
|
|
||||||
|
func NewTestBackend() *testBackend { |
||||||
|
HashRegAddr = common.BigToAddress(common.Big0).Hex() //[2:]
|
||||||
|
UrlHintAddr = common.BigToAddress(common.Big1).Hex() //[2:]
|
||||||
|
self := &testBackend{} |
||||||
|
self.contracts = make(map[string](map[string]string)) |
||||||
|
|
||||||
|
self.contracts[HashRegAddr[2:]] = make(map[string]string) |
||||||
|
key := storageAddress(storageMapping(storageIdx2Addr(1), codehash[:])) |
||||||
|
self.contracts[HashRegAddr[2:]][key] = hash.Hex() |
||||||
|
|
||||||
|
self.contracts[UrlHintAddr[2:]] = make(map[string]string) |
||||||
|
mapaddr := storageMapping(storageIdx2Addr(1), hash[:]) |
||||||
|
|
||||||
|
key = storageAddress(storageFixedArray(mapaddr, storageIdx2Addr(0))) |
||||||
|
self.contracts[UrlHintAddr[2:]][key] = common.ToHex([]byte(url)) |
||||||
|
key = storageAddress(storageFixedArray(mapaddr, storageIdx2Addr(1))) |
||||||
|
self.contracts[UrlHintAddr[2:]][key] = "0x0" |
||||||
|
return self |
||||||
|
} |
||||||
|
|
||||||
|
func (self *testBackend) StorageAt(ca, sa string) (res string) { |
||||||
|
c := self.contracts[ca] |
||||||
|
if c == nil { |
||||||
|
return |
||||||
|
} |
||||||
|
res = c[sa] |
||||||
|
return |
||||||
|
} |
||||||
|
|
||||||
|
func (self *testBackend) Transact(fromStr, toStr, nonceStr, valueStr, gasStr, gasPriceStr, codeStr string) (string, error) { |
||||||
|
return "", nil |
||||||
|
} |
||||||
|
|
||||||
|
func (self *testBackend) Call(fromStr, toStr, valueStr, gasStr, gasPriceStr, codeStr string) (string, string, error) { |
||||||
|
return "", "", nil |
||||||
|
} |
||||||
|
|
||||||
|
func TestSetGlobalRegistrar(t *testing.T) { |
||||||
|
b := NewTestBackend() |
||||||
|
res := New(b) |
||||||
|
_, err := res.SetGlobalRegistrar("addresshex", common.BigToAddress(common.Big1)) |
||||||
|
if err != nil { |
||||||
|
t.Errorf("unexpected error: %v'", err) |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
func TestHashToHash(t *testing.T) { |
||||||
|
b := NewTestBackend() |
||||||
|
res := New(b) |
||||||
|
// res.SetHashReg()
|
||||||
|
|
||||||
|
got, err := res.HashToHash(codehash) |
||||||
|
if err != nil { |
||||||
|
t.Errorf("expected no error, got %v", err) |
||||||
|
} else { |
||||||
|
if got != hash { |
||||||
|
t.Errorf("incorrect result, expected '%v', got '%v'", hash.Hex(), got.Hex()) |
||||||
|
} |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
func TestHashToUrl(t *testing.T) { |
||||||
|
b := NewTestBackend() |
||||||
|
res := New(b) |
||||||
|
// res.SetUrlHint()
|
||||||
|
|
||||||
|
got, err := res.HashToUrl(hash) |
||||||
|
if err != nil { |
||||||
|
t.Errorf("expected error, got %v", err) |
||||||
|
} else { |
||||||
|
if got != url { |
||||||
|
t.Errorf("incorrect result, expected '%v', got '%s'", url, got) |
||||||
|
} |
||||||
|
} |
||||||
|
} |
@ -1,36 +0,0 @@ |
|||||||
package resolver |
|
||||||
|
|
||||||
const ( // built-in contracts address and code
|
|
||||||
ContractCodeURLhint = "0x60c180600c6000396000f30060003560e060020a90048063300a3bbf14601557005b6024600435602435604435602a565b60006000f35b6000600084815260200190815260200160002054600160a060020a0316600014806078575033600160a060020a03166000600085815260200190815260200160002054600160a060020a0316145b607f5760bc565b336000600085815260200190815260200160002081905550806001600085815260200190815260200160002083610100811060b657005b01819055505b50505056" |
|
||||||
/* |
|
||||||
contract URLhint { |
|
||||||
function register(uint256 _hash, uint8 idx, uint256 _url) { |
|
||||||
if (owner[_hash] == 0 || owner[_hash] == msg.sender) { |
|
||||||
owner[_hash] = msg.sender; |
|
||||||
url[_hash][idx] = _url; |
|
||||||
} |
|
||||||
} |
|
||||||
mapping (uint256 => address) owner; |
|
||||||
mapping (uint256 => uint256[256]) url; |
|
||||||
} |
|
||||||
*/ |
|
||||||
|
|
||||||
ContractCodeHashReg = "0x609880600c6000396000f30060003560e060020a9004806331e12c2014601f578063d66d6c1014602b57005b6025603d565b60006000f35b6037600435602435605d565b60006000f35b600054600160a060020a0316600014605357605b565b336000819055505b565b600054600160a060020a031633600160a060020a031614607b576094565b8060016000848152602001908152602001600020819055505b505056" |
|
||||||
/* |
|
||||||
contract HashReg { |
|
||||||
function setowner() { |
|
||||||
if (owner == 0) { |
|
||||||
owner = msg.sender; |
|
||||||
} |
|
||||||
} |
|
||||||
function register(uint256 _key, uint256 _content) { |
|
||||||
if (msg.sender == owner) { |
|
||||||
content[_key] = _content; |
|
||||||
} |
|
||||||
} |
|
||||||
address owner; |
|
||||||
mapping (uint256 => uint256) content; |
|
||||||
} |
|
||||||
*/ |
|
||||||
|
|
||||||
) |
|
@ -1,232 +0,0 @@ |
|||||||
package resolver |
|
||||||
|
|
||||||
import ( |
|
||||||
"encoding/binary" |
|
||||||
"fmt" |
|
||||||
|
|
||||||
"github.com/ethereum/go-ethereum/common" |
|
||||||
"github.com/ethereum/go-ethereum/crypto" |
|
||||||
"github.com/ethereum/go-ethereum/logger" |
|
||||||
"github.com/ethereum/go-ethereum/logger/glog" |
|
||||||
) |
|
||||||
|
|
||||||
/* |
|
||||||
Resolver implements the Ethereum DNS mapping |
|
||||||
HashReg : Key Hash (hash of domain name or contract code) -> Content Hash |
|
||||||
UrlHint : Content Hash -> Url Hint |
|
||||||
|
|
||||||
The resolver is meant to be called by the roundtripper transport implementation |
|
||||||
of a url scheme |
|
||||||
*/ |
|
||||||
|
|
||||||
// // contract addresses will be hardcoded after they're created
|
|
||||||
var UrlHintContractAddress, HashRegContractAddress string |
|
||||||
|
|
||||||
const ( |
|
||||||
txValue = "0" |
|
||||||
txGas = "100000" |
|
||||||
txGasPrice = "1000000000000" |
|
||||||
) |
|
||||||
|
|
||||||
func abi(s string) string { |
|
||||||
return common.ToHex(crypto.Sha3([]byte(s))[:4]) |
|
||||||
} |
|
||||||
|
|
||||||
var ( |
|
||||||
registerContentHashAbi = abi("register(uint256,uint256)") |
|
||||||
registerUrlAbi = abi("register(uint256,uint8,uint256)") |
|
||||||
setOwnerAbi = abi("setowner()") |
|
||||||
) |
|
||||||
|
|
||||||
type Backend interface { |
|
||||||
StorageAt(string, string) string |
|
||||||
Transact(fromStr, toStr, nonceStr, valueStr, gasStr, gasPriceStr, codeStr string) (string, error) |
|
||||||
} |
|
||||||
|
|
||||||
type Resolver struct { |
|
||||||
backend Backend |
|
||||||
} |
|
||||||
|
|
||||||
func New(eth Backend) *Resolver { |
|
||||||
return &Resolver{eth} |
|
||||||
} |
|
||||||
|
|
||||||
// for testing and play temporarily
|
|
||||||
// ideally the HashReg and UrlHint contracts should be in the genesis block
|
|
||||||
// if we got build-in support for natspec/contract info
|
|
||||||
// there should be only one of these officially endorsed
|
|
||||||
// addresses as constants
|
|
||||||
// TODO: could get around this with namereg, check
|
|
||||||
func (self *Resolver) CreateContracts(addr common.Address) (err error) { |
|
||||||
HashRegContractAddress, err = self.backend.Transact(addr.Hex(), "", "", txValue, txGas, txGasPrice, ContractCodeHashReg) |
|
||||||
if err != nil { |
|
||||||
return |
|
||||||
} |
|
||||||
UrlHintContractAddress, err = self.backend.Transact(addr.Hex(), "", "", txValue, txGas, txGasPrice, ContractCodeURLhint) |
|
||||||
glog.V(logger.Detail).Infof("HashReg @ %v\nUrlHint @ %v\n", HashRegContractAddress, UrlHintContractAddress) |
|
||||||
return |
|
||||||
} |
|
||||||
|
|
||||||
// called as first step in the registration process on HashReg
|
|
||||||
func (self *Resolver) SetOwner(address common.Address) (txh string, err error) { |
|
||||||
return self.backend.Transact( |
|
||||||
address.Hex(), |
|
||||||
HashRegContractAddress, |
|
||||||
"", txValue, txGas, txGasPrice, |
|
||||||
setOwnerAbi, |
|
||||||
) |
|
||||||
} |
|
||||||
|
|
||||||
// registers some content hash to a key/code hash
|
|
||||||
// e.g., the contract Info combined Json Doc's ContentHash
|
|
||||||
// to CodeHash of a contract or hash of a domain
|
|
||||||
// kept
|
|
||||||
func (self *Resolver) RegisterContentHash(address common.Address, codehash, dochash common.Hash) (txh string, err error) { |
|
||||||
_, err = self.SetOwner(address) |
|
||||||
if err != nil { |
|
||||||
return |
|
||||||
} |
|
||||||
codehex := common.Bytes2Hex(codehash[:]) |
|
||||||
dochex := common.Bytes2Hex(dochash[:]) |
|
||||||
|
|
||||||
data := registerContentHashAbi + codehex + dochex |
|
||||||
return self.backend.Transact( |
|
||||||
address.Hex(), |
|
||||||
HashRegContractAddress, |
|
||||||
"", txValue, txGas, txGasPrice, |
|
||||||
data, |
|
||||||
) |
|
||||||
} |
|
||||||
|
|
||||||
// registers a url to a content hash so that the content can be fetched
|
|
||||||
// address is used as sender for the transaction and will be the owner of a new
|
|
||||||
// registry entry on first time use
|
|
||||||
// FIXME: silently doing nothing if sender is not the owner
|
|
||||||
// note that with content addressed storage, this step is no longer necessary
|
|
||||||
// it could be purely
|
|
||||||
func (self *Resolver) RegisterUrl(address common.Address, hash common.Hash, url string) (txh string, err error) { |
|
||||||
hashHex := common.Bytes2Hex(hash[:]) |
|
||||||
var urlHex string |
|
||||||
urlb := []byte(url) |
|
||||||
var cnt byte |
|
||||||
n := len(urlb) |
|
||||||
|
|
||||||
for n > 0 { |
|
||||||
if n > 32 { |
|
||||||
n = 32 |
|
||||||
} |
|
||||||
urlHex = common.Bytes2Hex(urlb[:n]) |
|
||||||
urlb = urlb[n:] |
|
||||||
n = len(urlb) |
|
||||||
bcnt := make([]byte, 32) |
|
||||||
bcnt[31] = cnt |
|
||||||
data := registerUrlAbi + |
|
||||||
hashHex + |
|
||||||
common.Bytes2Hex(bcnt) + |
|
||||||
common.Bytes2Hex(common.Hex2BytesFixed(urlHex, 32)) |
|
||||||
txh, err = self.backend.Transact( |
|
||||||
address.Hex(), |
|
||||||
UrlHintContractAddress, |
|
||||||
"", txValue, txGas, txGasPrice, |
|
||||||
data, |
|
||||||
) |
|
||||||
if err != nil { |
|
||||||
return |
|
||||||
} |
|
||||||
cnt++ |
|
||||||
} |
|
||||||
return |
|
||||||
} |
|
||||||
|
|
||||||
func (self *Resolver) Register(address common.Address, codehash, dochash common.Hash, url string) (txh string, err error) { |
|
||||||
|
|
||||||
_, err = self.RegisterContentHash(address, codehash, dochash) |
|
||||||
if err != nil { |
|
||||||
return |
|
||||||
} |
|
||||||
return self.RegisterUrl(address, dochash, url) |
|
||||||
} |
|
||||||
|
|
||||||
// resolution is costless non-transactional
|
|
||||||
// implemented as direct retrieval from db
|
|
||||||
func (self *Resolver) KeyToContentHash(khash common.Hash) (chash common.Hash, err error) { |
|
||||||
// look up in hashReg
|
|
||||||
at := common.Bytes2Hex(common.FromHex(HashRegContractAddress)) |
|
||||||
key := storageAddress(storageMapping(storageIdx2Addr(1), khash[:])) |
|
||||||
hash := self.backend.StorageAt(at, key) |
|
||||||
|
|
||||||
if hash == "0x0" || len(hash) < 3 { |
|
||||||
err = fmt.Errorf("content hash not found for '%v'", khash.Hex()) |
|
||||||
return |
|
||||||
} |
|
||||||
copy(chash[:], common.Hex2BytesFixed(hash[2:], 32)) |
|
||||||
return |
|
||||||
} |
|
||||||
|
|
||||||
// retrieves the url-hint for the content hash -
|
|
||||||
// if we use content addressed storage, this step is no longer necessary
|
|
||||||
func (self *Resolver) ContentHashToUrl(chash common.Hash) (uri string, err error) { |
|
||||||
// look up in URL reg
|
|
||||||
var str string = " " |
|
||||||
var idx uint32 |
|
||||||
for len(str) > 0 { |
|
||||||
mapaddr := storageMapping(storageIdx2Addr(1), chash[:]) |
|
||||||
key := storageAddress(storageFixedArray(mapaddr, storageIdx2Addr(idx))) |
|
||||||
hex := self.backend.StorageAt(UrlHintContractAddress, key) |
|
||||||
str = string(common.Hex2Bytes(hex[2:])) |
|
||||||
l := len(str) |
|
||||||
for (l > 0) && (str[l-1] == 0) { |
|
||||||
l-- |
|
||||||
} |
|
||||||
str = str[:l] |
|
||||||
uri = uri + str |
|
||||||
idx++ |
|
||||||
} |
|
||||||
|
|
||||||
if len(uri) == 0 { |
|
||||||
err = fmt.Errorf("GetURLhint: URL hint not found for '%v'", chash.Hex()) |
|
||||||
} |
|
||||||
return |
|
||||||
} |
|
||||||
|
|
||||||
func (self *Resolver) KeyToUrl(key common.Hash) (uri string, hash common.Hash, err error) { |
|
||||||
// look up in urlHint
|
|
||||||
hash, err = self.KeyToContentHash(key) |
|
||||||
if err != nil { |
|
||||||
return |
|
||||||
} |
|
||||||
uri, err = self.ContentHashToUrl(hash) |
|
||||||
return |
|
||||||
} |
|
||||||
|
|
||||||
func storageIdx2Addr(varidx uint32) []byte { |
|
||||||
data := make([]byte, 32) |
|
||||||
binary.BigEndian.PutUint32(data[28:32], varidx) |
|
||||||
return data |
|
||||||
} |
|
||||||
|
|
||||||
func storageMapping(addr, key []byte) []byte { |
|
||||||
data := make([]byte, 64) |
|
||||||
copy(data[0:32], key[0:32]) |
|
||||||
copy(data[32:64], addr[0:32]) |
|
||||||
sha := crypto.Sha3(data) |
|
||||||
return sha |
|
||||||
} |
|
||||||
|
|
||||||
func storageFixedArray(addr, idx []byte) []byte { |
|
||||||
var carry byte |
|
||||||
for i := 31; i >= 0; i-- { |
|
||||||
var b byte = addr[i] + idx[i] + carry |
|
||||||
if b < addr[i] { |
|
||||||
carry = 1 |
|
||||||
} else { |
|
||||||
carry = 0 |
|
||||||
} |
|
||||||
addr[i] = b |
|
||||||
} |
|
||||||
return addr |
|
||||||
} |
|
||||||
|
|
||||||
func storageAddress(addr []byte) string { |
|
||||||
return common.ToHex(addr) |
|
||||||
} |
|
@ -1,93 +0,0 @@ |
|||||||
package resolver |
|
||||||
|
|
||||||
import ( |
|
||||||
"testing" |
|
||||||
|
|
||||||
"github.com/ethereum/go-ethereum/common" |
|
||||||
"github.com/ethereum/go-ethereum/crypto" |
|
||||||
) |
|
||||||
|
|
||||||
type testBackend struct { |
|
||||||
// contracts mock
|
|
||||||
contracts map[string](map[string]string) |
|
||||||
} |
|
||||||
|
|
||||||
var ( |
|
||||||
text = "test" |
|
||||||
codehash = common.StringToHash("1234") |
|
||||||
hash = common.BytesToHash(crypto.Sha3([]byte(text))) |
|
||||||
url = "bzz://bzzhash/my/path/contr.act" |
|
||||||
) |
|
||||||
|
|
||||||
func NewTestBackend() *testBackend { |
|
||||||
HashRegContractAddress = common.BigToAddress(common.Big0).Hex()[2:] |
|
||||||
UrlHintContractAddress = common.BigToAddress(common.Big1).Hex()[2:] |
|
||||||
self := &testBackend{} |
|
||||||
self.contracts = make(map[string](map[string]string)) |
|
||||||
|
|
||||||
self.contracts[HashRegContractAddress] = make(map[string]string) |
|
||||||
key := storageAddress(storageMapping(storageIdx2Addr(1), codehash[:])) |
|
||||||
self.contracts[HashRegContractAddress][key] = hash.Hex() |
|
||||||
|
|
||||||
self.contracts[UrlHintContractAddress] = make(map[string]string) |
|
||||||
mapaddr := storageMapping(storageIdx2Addr(1), hash[:]) |
|
||||||
|
|
||||||
key = storageAddress(storageFixedArray(mapaddr, storageIdx2Addr(0))) |
|
||||||
self.contracts[UrlHintContractAddress][key] = common.ToHex([]byte(url)) |
|
||||||
key = storageAddress(storageFixedArray(mapaddr, storageIdx2Addr(1))) |
|
||||||
self.contracts[UrlHintContractAddress][key] = "0x00" |
|
||||||
return self |
|
||||||
} |
|
||||||
|
|
||||||
func (self *testBackend) StorageAt(ca, sa string) (res string) { |
|
||||||
c := self.contracts[ca] |
|
||||||
if c == nil { |
|
||||||
return |
|
||||||
} |
|
||||||
res = c[sa] |
|
||||||
return |
|
||||||
} |
|
||||||
|
|
||||||
func (self *testBackend) Transact(fromStr, toStr, nonceStr, valueStr, gasStr, gasPriceStr, codeStr string) (string, error) { |
|
||||||
return "", nil |
|
||||||
} |
|
||||||
|
|
||||||
func TestKeyToContentHash(t *testing.T) { |
|
||||||
b := NewTestBackend() |
|
||||||
res := New(b) |
|
||||||
|
|
||||||
got, err := res.KeyToContentHash(codehash) |
|
||||||
if err != nil { |
|
||||||
t.Errorf("expected no error, got %v", err) |
|
||||||
} else { |
|
||||||
if got != hash { |
|
||||||
t.Errorf("incorrect result, expected '%v', got '%v'", hash.Hex(), got.Hex()) |
|
||||||
} |
|
||||||
} |
|
||||||
} |
|
||||||
|
|
||||||
func TestContentHashToUrl(t *testing.T) { |
|
||||||
b := NewTestBackend() |
|
||||||
res := New(b) |
|
||||||
got, err := res.ContentHashToUrl(hash) |
|
||||||
if err != nil { |
|
||||||
t.Errorf("expected no error, got %v", err) |
|
||||||
} else { |
|
||||||
if got != url { |
|
||||||
t.Errorf("incorrect result, expected '%v', got '%s'", url, got) |
|
||||||
} |
|
||||||
} |
|
||||||
} |
|
||||||
|
|
||||||
func TestKeyToUrl(t *testing.T) { |
|
||||||
b := NewTestBackend() |
|
||||||
res := New(b) |
|
||||||
got, _, err := res.KeyToUrl(codehash) |
|
||||||
if err != nil { |
|
||||||
t.Errorf("expected no error, got %v", err) |
|
||||||
} else { |
|
||||||
if got != url { |
|
||||||
t.Errorf("incorrect result, expected \n'%s', got \n'%s'", url, got) |
|
||||||
} |
|
||||||
} |
|
||||||
} |
|
@ -0,0 +1,72 @@ |
|||||||
|
// Copyright 2015 The go-ethereum Authors
|
||||||
|
// This file is part of go-ethereum.
|
||||||
|
//
|
||||||
|
// go-ethereum is free software: you can redistribute it and/or modify
|
||||||
|
// it under the terms of the GNU Lesser General Public License as published by
|
||||||
|
// the Free Software Foundation, either version 3 of the License, or
|
||||||
|
// (at your option) any later version.
|
||||||
|
//
|
||||||
|
// go-ethereum 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 Lesser General Public License for more details.
|
||||||
|
//
|
||||||
|
// You should have received a copy of the GNU Lesser General Public License
|
||||||
|
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
|
||||||
|
package core |
||||||
|
|
||||||
|
import ( |
||||||
|
"bytes" |
||||||
|
"encoding/json" |
||||||
|
"io/ioutil" |
||||||
|
"net/http" |
||||||
|
|
||||||
|
"github.com/ethereum/go-ethereum/common" |
||||||
|
"github.com/ethereum/go-ethereum/core/types" |
||||||
|
"github.com/ethereum/go-ethereum/logger" |
||||||
|
"github.com/ethereum/go-ethereum/logger/glog" |
||||||
|
"github.com/ethereum/go-ethereum/rlp" |
||||||
|
) |
||||||
|
|
||||||
|
// DisabledBadBlockReporting can be set to prevent blocks being reported.
|
||||||
|
var DisableBadBlockReporting = true |
||||||
|
|
||||||
|
// ReportBlock reports the block to the block reporting tool found at
|
||||||
|
// badblocks.ethdev.com
|
||||||
|
func ReportBlock(block *types.Block, err error) { |
||||||
|
if DisableBadBlockReporting { |
||||||
|
return |
||||||
|
} |
||||||
|
|
||||||
|
const url = "https://badblocks.ethdev.com" |
||||||
|
|
||||||
|
blockRlp, _ := rlp.EncodeToBytes(block) |
||||||
|
data := map[string]interface{}{ |
||||||
|
"block": common.Bytes2Hex(blockRlp), |
||||||
|
"errortype": err.Error(), |
||||||
|
"hints": map[string]interface{}{ |
||||||
|
"receipts": "NYI", |
||||||
|
"vmtrace": "NYI", |
||||||
|
}, |
||||||
|
} |
||||||
|
jsonStr, _ := json.Marshal(map[string]interface{}{"method": "eth_badBlock", "params": []interface{}{data}, "id": "1", "jsonrpc": "2.0"}) |
||||||
|
|
||||||
|
req, err := http.NewRequest("POST", url, bytes.NewBuffer(jsonStr)) |
||||||
|
req.Header.Set("Content-Type", "application/json") |
||||||
|
|
||||||
|
client := &http.Client{} |
||||||
|
resp, err := client.Do(req) |
||||||
|
if err != nil { |
||||||
|
glog.V(logger.Error).Infoln("POST err:", err) |
||||||
|
return |
||||||
|
} |
||||||
|
defer resp.Body.Close() |
||||||
|
|
||||||
|
if glog.V(logger.Debug) { |
||||||
|
glog.Infoln("response Status:", resp.Status) |
||||||
|
glog.Infoln("response Headers:", resp.Header) |
||||||
|
body, _ := ioutil.ReadAll(resp.Body) |
||||||
|
glog.Infoln("response Body:", string(body)) |
||||||
|
} |
||||||
|
} |
@ -0,0 +1,114 @@ |
|||||||
|
// Copyright 2015 The go-ethereum Authors
|
||||||
|
// This file is part of go-ethereum.
|
||||||
|
//
|
||||||
|
// go-ethereum is free software: you can redistribute it and/or modify
|
||||||
|
// it under the terms of the GNU Lesser General Public License as published by
|
||||||
|
// the Free Software Foundation, either version 3 of the License, or
|
||||||
|
// (at your option) any later version.
|
||||||
|
//
|
||||||
|
// go-ethereum 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 Lesser General Public License for more details.
|
||||||
|
//
|
||||||
|
// You should have received a copy of the GNU Lesser General Public License
|
||||||
|
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
|
||||||
|
package core |
||||||
|
|
||||||
|
import ( |
||||||
|
"bytes" |
||||||
|
"math/big" |
||||||
|
|
||||||
|
"github.com/ethereum/go-ethereum/common" |
||||||
|
"github.com/ethereum/go-ethereum/core/types" |
||||||
|
"github.com/ethereum/go-ethereum/logger" |
||||||
|
"github.com/ethereum/go-ethereum/logger/glog" |
||||||
|
"github.com/ethereum/go-ethereum/params" |
||||||
|
"github.com/ethereum/go-ethereum/rlp" |
||||||
|
) |
||||||
|
|
||||||
|
// CalcDifficulty is the difficulty adjustment algorithm. It returns
|
||||||
|
// the difficulty that a new block b should have when created at time
|
||||||
|
// given the parent block's time and difficulty.
|
||||||
|
func CalcDifficulty(time int64, parentTime int64, parentDiff *big.Int) *big.Int { |
||||||
|
diff := new(big.Int) |
||||||
|
adjust := new(big.Int).Div(parentDiff, params.DifficultyBoundDivisor) |
||||||
|
if big.NewInt(time-parentTime).Cmp(params.DurationLimit) < 0 { |
||||||
|
diff.Add(parentDiff, adjust) |
||||||
|
} else { |
||||||
|
diff.Sub(parentDiff, adjust) |
||||||
|
} |
||||||
|
if diff.Cmp(params.MinimumDifficulty) < 0 { |
||||||
|
return params.MinimumDifficulty |
||||||
|
} |
||||||
|
return diff |
||||||
|
} |
||||||
|
|
||||||
|
// CalcTD computes the total difficulty of block.
|
||||||
|
func CalcTD(block, parent *types.Block) *big.Int { |
||||||
|
if parent == nil { |
||||||
|
return block.Difficulty() |
||||||
|
} |
||||||
|
d := block.Difficulty() |
||||||
|
d.Add(d, parent.Td) |
||||||
|
return d |
||||||
|
} |
||||||
|
|
||||||
|
// CalcGasLimit computes the gas limit of the next block after parent.
|
||||||
|
// The result may be modified by the caller.
|
||||||
|
func CalcGasLimit(parent *types.Block) *big.Int { |
||||||
|
decay := new(big.Int).Div(parent.GasLimit(), params.GasLimitBoundDivisor) |
||||||
|
contrib := new(big.Int).Mul(parent.GasUsed(), big.NewInt(3)) |
||||||
|
contrib = contrib.Div(contrib, big.NewInt(2)) |
||||||
|
contrib = contrib.Div(contrib, params.GasLimitBoundDivisor) |
||||||
|
|
||||||
|
gl := new(big.Int).Sub(parent.GasLimit(), decay) |
||||||
|
gl = gl.Add(gl, contrib) |
||||||
|
gl = gl.Add(gl, big.NewInt(1)) |
||||||
|
gl.Set(common.BigMax(gl, params.MinGasLimit)) |
||||||
|
|
||||||
|
if gl.Cmp(params.GenesisGasLimit) < 0 { |
||||||
|
gl.Add(parent.GasLimit(), decay) |
||||||
|
gl.Set(common.BigMin(gl, params.GenesisGasLimit)) |
||||||
|
} |
||||||
|
return gl |
||||||
|
} |
||||||
|
|
||||||
|
// GetBlockByHash returns the block corresponding to the hash or nil if not found
|
||||||
|
func GetBlockByHash(db common.Database, hash common.Hash) *types.Block { |
||||||
|
data, _ := db.Get(append(blockHashPre, hash[:]...)) |
||||||
|
if len(data) == 0 { |
||||||
|
return nil |
||||||
|
} |
||||||
|
var block types.StorageBlock |
||||||
|
if err := rlp.Decode(bytes.NewReader(data), &block); err != nil { |
||||||
|
glog.V(logger.Error).Infof("invalid block RLP for hash %x: %v", hash, err) |
||||||
|
return nil |
||||||
|
} |
||||||
|
return (*types.Block)(&block) |
||||||
|
} |
||||||
|
|
||||||
|
// GetBlockByHash returns the canonical block by number or nil if not found
|
||||||
|
func GetBlockByNumber(db common.Database, number uint64) *types.Block { |
||||||
|
key, _ := db.Get(append(blockNumPre, big.NewInt(int64(number)).Bytes()...)) |
||||||
|
if len(key) == 0 { |
||||||
|
return nil |
||||||
|
} |
||||||
|
|
||||||
|
return GetBlockByHash(db, common.BytesToHash(key)) |
||||||
|
} |
||||||
|
|
||||||
|
// WriteHead force writes the current head
|
||||||
|
func WriteHead(db common.Database, block *types.Block) error { |
||||||
|
key := append(blockNumPre, block.Number().Bytes()...) |
||||||
|
err := db.Put(key, block.Hash().Bytes()) |
||||||
|
if err != nil { |
||||||
|
return err |
||||||
|
} |
||||||
|
err = db.Put([]byte("LastBlock"), block.Hash().Bytes()) |
||||||
|
if err != nil { |
||||||
|
return err |
||||||
|
} |
||||||
|
return nil |
||||||
|
} |
@ -1 +1,17 @@ |
|||||||
|
// Copyright 2014 The go-ethereum Authors
|
||||||
|
// This file is part of go-ethereum.
|
||||||
|
//
|
||||||
|
// go-ethereum is free software: you can redistribute it and/or modify
|
||||||
|
// it under the terms of the GNU Lesser General Public License as published by
|
||||||
|
// the Free Software Foundation, either version 3 of the License, or
|
||||||
|
// (at your option) any later version.
|
||||||
|
//
|
||||||
|
// go-ethereum 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 Lesser General Public License for more details.
|
||||||
|
//
|
||||||
|
// You should have received a copy of the GNU Lesser General Public License
|
||||||
|
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
|
||||||
package core |
package core |
||||||
|
Some files were not shown because too many files have changed in this diff Show More
Loading…
Reference in new issue