commit 1cf33e5ffd17f0d11e167e3fdc8ca585cefac4b1 Author: Evgeniy Kulikov Date: Mon Nov 18 16:34:06 2019 +0300 initial diff --git a/.gitattributes b/.gitattributes new file mode 100644 index 00000000..b002a5dd --- /dev/null +++ b/.gitattributes @@ -0,0 +1 @@ +/**/*.pb.go -diff binary diff --git a/.gitignore b/.gitignore new file mode 100644 index 00000000..22e0c656 --- /dev/null +++ b/.gitignore @@ -0,0 +1,3 @@ +bin +temp +/vendor/ diff --git a/LICENSE.md b/LICENSE.md new file mode 100644 index 00000000..5c13ba2e --- /dev/null +++ b/LICENSE.md @@ -0,0 +1,675 @@ +### GNU GENERAL PUBLIC LICENSE + +Version 3, 29 June 2007 + +Copyright (C) 2007 Free Software Foundation, Inc. + + +Everyone is permitted to copy and distribute verbatim copies of this +license document, but changing it is not allowed. + +### Preamble + +The GNU General Public License is a free, copyleft license for +software and other kinds of works. + +The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. By contrast, +the GNU General Public License is intended to guarantee your freedom +to share and change all versions of a program--to make sure it remains +free software for all its users. We, the Free Software Foundation, use +the GNU General Public License for most of our software; it applies +also to any other work released this way by its authors. You can apply +it to your programs, too. + +When we speak of free software, we are referring to freedom, not +price. Our General Public Licenses are designed to make sure that you +have the freedom to distribute copies of free software (and charge for +them if you wish), that you receive source code or can get it if you +want it, that you can change the software or use pieces of it in new +free programs, and that you know you can do these things. + +To protect your rights, we need to prevent others from denying you +these rights or asking you to surrender the rights. Therefore, you +have certain responsibilities if you distribute copies of the +software, or if you modify it: responsibilities to respect the freedom +of others. + +For example, if you distribute copies of such a program, whether +gratis or for a fee, you must pass on to the recipients the same +freedoms that you received. You must make sure that they, too, receive +or can get the source code. And you must show them these terms so they +know their rights. + +Developers that use the GNU GPL protect your rights with two steps: +(1) assert copyright on the software, and (2) offer you this License +giving you legal permission to copy, distribute and/or modify it. + +For the developers' and authors' protection, the GPL clearly explains +that there is no warranty for this free software. For both users' and +authors' sake, the GPL requires that modified versions be marked as +changed, so that their problems will not be attributed erroneously to +authors of previous versions. + +Some devices are designed to deny users access to install or run +modified versions of the software inside them, although the +manufacturer can do so. This is fundamentally incompatible with the +aim of protecting users' freedom to change the software. The +systematic pattern of such abuse occurs in the area of products for +individuals to use, which is precisely where it is most unacceptable. +Therefore, we have designed this version of the GPL to prohibit the +practice for those products. If such problems arise substantially in +other domains, we stand ready to extend this provision to those +domains in future versions of the GPL, as needed to protect the +freedom of users. + +Finally, every program is threatened constantly by software patents. +States should not allow patents to restrict development and use of +software on general-purpose computers, but in those that do, we wish +to avoid the special danger that patents applied to a free program +could make it effectively proprietary. To prevent this, the GPL +assures that patents cannot be used to render the program non-free. + +The precise terms and conditions for copying, distribution and +modification follow. + +### TERMS AND CONDITIONS + +#### 0. Definitions. + +"This License" refers to version 3 of the GNU General Public License. + +"Copyright" also means copyright-like laws that apply to other kinds +of works, such as semiconductor masks. + +"The Program" refers to any copyrightable work licensed under this +License. Each licensee is addressed as "you". "Licensees" and +"recipients" may be individuals or organizations. + +To "modify" a work means to copy from or adapt all or part of the work +in a fashion requiring copyright permission, other than the making of +an exact copy. The resulting work is called a "modified version" of +the earlier work or a work "based on" the earlier work. + +A "covered work" means either the unmodified Program or a work based +on the Program. + +To "propagate" a work means to do anything with it that, without +permission, would make you directly or secondarily liable for +infringement under applicable copyright law, except executing it on a +computer or modifying a private copy. Propagation includes copying, +distribution (with or without modification), making available to the +public, and in some countries other activities as well. + +To "convey" a work means any kind of propagation that enables other +parties to make or receive copies. Mere interaction with a user +through a computer network, with no transfer of a copy, is not +conveying. + +An interactive user interface displays "Appropriate Legal Notices" to +the extent that it includes a convenient and prominently visible +feature that (1) displays an appropriate copyright notice, and (2) +tells the user that there is no warranty for the work (except to the +extent that warranties are provided), that licensees may convey the +work under this License, and how to view a copy of this License. If +the interface presents a list of user commands or options, such as a +menu, a prominent item in the list meets this criterion. + +#### 1. Source Code. + +The "source code" for a work means the preferred form of the work for +making modifications to it. "Object code" means any non-source form of +a work. + +A "Standard Interface" means an interface that either is an official +standard defined by a recognized standards body, or, in the case of +interfaces specified for a particular programming language, one that +is widely used among developers working in that language. + +The "System Libraries" of an executable work include anything, other +than the work as a whole, that (a) is included in the normal form of +packaging a Major Component, but which is not part of that Major +Component, and (b) serves only to enable use of the work with that +Major Component, or to implement a Standard Interface for which an +implementation is available to the public in source code form. A +"Major Component", in this context, means a major essential component +(kernel, window system, and so on) of the specific operating system +(if any) on which the executable work runs, or a compiler used to +produce the work, or an object code interpreter used to run it. + +The "Corresponding Source" for a work in object code form means all +the source code needed to generate, install, and (for an executable +work) run the object code and to modify the work, including scripts to +control those activities. However, it does not include the work's +System Libraries, or general-purpose tools or generally available free +programs which are used unmodified in performing those activities but +which are not part of the work. For example, Corresponding Source +includes interface definition files associated with source files for +the work, and the source code for shared libraries and dynamically +linked subprograms that the work is specifically designed to require, +such as by intimate data communication or control flow between those +subprograms and other parts of the work. + +The Corresponding Source need not include anything that users can +regenerate automatically from other parts of the Corresponding Source. + +The Corresponding Source for a work in source code form is that same +work. + +#### 2. Basic Permissions. + +All rights granted under this License are granted for the term of +copyright on the Program, and are irrevocable provided the stated +conditions are met. This License explicitly affirms your unlimited +permission to run the unmodified Program. The output from running a +covered work is covered by this License only if the output, given its +content, constitutes a covered work. This License acknowledges your +rights of fair use or other equivalent, as provided by copyright law. + +You may make, run and propagate covered works that you do not convey, +without conditions so long as your license otherwise remains in force. +You may convey covered works to others for the sole purpose of having +them make modifications exclusively for you, or provide you with +facilities for running those works, provided that you comply with the +terms of this License in conveying all material for which you do not +control copyright. Those thus making or running the covered works for +you must do so exclusively on your behalf, under your direction and +control, on terms that prohibit them from making any copies of your +copyrighted material outside their relationship with you. + +Conveying under any other circumstances is permitted solely under the +conditions stated below. Sublicensing is not allowed; section 10 makes +it unnecessary. + +#### 3. Protecting Users' Legal Rights From Anti-Circumvention Law. + +No covered work shall be deemed part of an effective technological +measure under any applicable law fulfilling obligations under article +11 of the WIPO copyright treaty adopted on 20 December 1996, or +similar laws prohibiting or restricting circumvention of such +measures. + +When you convey a covered work, you waive any legal power to forbid +circumvention of technological measures to the extent such +circumvention is effected by exercising rights under this License with +respect to the covered work, and you disclaim any intention to limit +operation or modification of the work as a means of enforcing, against +the work's users, your or third parties' legal rights to forbid +circumvention of technological measures. + +#### 4. Conveying Verbatim Copies. + +You may convey verbatim copies of the Program's source code as you +receive it, in any medium, provided that you conspicuously and +appropriately publish on each copy an appropriate copyright notice; +keep intact all notices stating that this License and any +non-permissive terms added in accord with section 7 apply to the code; +keep intact all notices of the absence of any warranty; and give all +recipients a copy of this License along with the Program. + +You may charge any price or no price for each copy that you convey, +and you may offer support or warranty protection for a fee. + +#### 5. Conveying Modified Source Versions. + +You may convey a work based on the Program, or the modifications to +produce it from the Program, in the form of source code under the +terms of section 4, provided that you also meet all of these +conditions: + +- a) The work must carry prominent notices stating that you modified +it, and giving a relevant date. +- b) The work must carry prominent notices stating that it is +released under this License and any conditions added under +section 7. This requirement modifies the requirement in section 4 +to "keep intact all notices". +- c) You must license the entire work, as a whole, under this +License to anyone who comes into possession of a copy. This +License will therefore apply, along with any applicable section 7 +additional terms, to the whole of the work, and all its parts, +regardless of how they are packaged. This License gives no +permission to license the work in any other way, but it does not +invalidate such permission if you have separately received it. +- d) If the work has interactive user interfaces, each must display +Appropriate Legal Notices; however, if the Program has interactive +interfaces that do not display Appropriate Legal Notices, your +work need not make them do so. + +A compilation of a covered work with other separate and independent +works, which are not by their nature extensions of the covered work, +and which are not combined with it such as to form a larger program, +in or on a volume of a storage or distribution medium, is called an +"aggregate" if the compilation and its resulting copyright are not +used to limit the access or legal rights of the compilation's users +beyond what the individual works permit. Inclusion of a covered work +in an aggregate does not cause this License to apply to the other +parts of the aggregate. + +#### 6. Conveying Non-Source Forms. + +You may convey a covered work in object code form under the terms of +sections 4 and 5, provided that you also convey the machine-readable +Corresponding Source under the terms of this License, in one of these +ways: + +- a) Convey the object code in, or embodied in, a physical product +(including a physical distribution medium), accompanied by the +Corresponding Source fixed on a durable physical medium +customarily used for software interchange. +- b) Convey the object code in, or embodied in, a physical product +(including a physical distribution medium), accompanied by a +written offer, valid for at least three years and valid for as +long as you offer spare parts or customer support for that product +model, to give anyone who possesses the object code either (1) a +copy of the Corresponding Source for all the software in the +product that is covered by this License, on a durable physical +medium customarily used for software interchange, for a price no +more than your reasonable cost of physically performing this +conveying of source, or (2) access to copy the Corresponding +Source from a network server at no charge. +- c) Convey individual copies of the object code with a copy of the +written offer to provide the Corresponding Source. This +alternative is allowed only occasionally and noncommercially, and +only if you received the object code with such an offer, in accord +with subsection 6b. +- d) Convey the object code by offering access from a designated +place (gratis or for a charge), and offer equivalent access to the +Corresponding Source in the same way through the same place at no +further charge. You need not require recipients to copy the +Corresponding Source along with the object code. If the place to +copy the object code is a network server, the Corresponding Source +may be on a different server (operated by you or a third party) +that supports equivalent copying facilities, provided you maintain +clear directions next to the object code saying where to find the +Corresponding Source. Regardless of what server hosts the +Corresponding Source, you remain obligated to ensure that it is +available for as long as needed to satisfy these requirements. +- e) Convey the object code using peer-to-peer transmission, +provided you inform other peers where the object code and +Corresponding Source of the work are being offered to the general +public at no charge under subsection 6d. + +A separable portion of the object code, whose source code is excluded +from the Corresponding Source as a System Library, need not be +included in conveying the object code work. + +A "User Product" is either (1) a "consumer product", which means any +tangible personal property which is normally used for personal, +family, or household purposes, or (2) anything designed or sold for +incorporation into a dwelling. In determining whether a product is a +consumer product, doubtful cases shall be resolved in favor of +coverage. For a particular product received by a particular user, +"normally used" refers to a typical or common use of that class of +product, regardless of the status of the particular user or of the way +in which the particular user actually uses, or expects or is expected +to use, the product. A product is a consumer product regardless of +whether the product has substantial commercial, industrial or +non-consumer uses, unless such uses represent the only significant +mode of use of the product. + +"Installation Information" for a User Product means any methods, +procedures, authorization keys, or other information required to +install and execute modified versions of a covered work in that User +Product from a modified version of its Corresponding Source. The +information must suffice to ensure that the continued functioning of +the modified object code is in no case prevented or interfered with +solely because modification has been made. + +If you convey an object code work under this section in, or with, or +specifically for use in, a User Product, and the conveying occurs as +part of a transaction in which the right of possession and use of the +User Product is transferred to the recipient in perpetuity or for a +fixed term (regardless of how the transaction is characterized), the +Corresponding Source conveyed under this section must be accompanied +by the Installation Information. But this requirement does not apply +if neither you nor any third party retains the ability to install +modified object code on the User Product (for example, the work has +been installed in ROM). + +The requirement to provide Installation Information does not include a +requirement to continue to provide support service, warranty, or +updates for a work that has been modified or installed by the +recipient, or for the User Product in which it has been modified or +installed. Access to a network may be denied when the modification +itself materially and adversely affects the operation of the network +or violates the rules and protocols for communication across the +network. + +Corresponding Source conveyed, and Installation Information provided, +in accord with this section must be in a format that is publicly +documented (and with an implementation available to the public in +source code form), and must require no special password or key for +unpacking, reading or copying. + +#### 7. Additional Terms. + +"Additional permissions" are terms that supplement the terms of this +License by making exceptions from one or more of its conditions. +Additional permissions that are applicable to the entire Program shall +be treated as though they were included in this License, to the extent +that they are valid under applicable law. If additional permissions +apply only to part of the Program, that part may be used separately +under those permissions, but the entire Program remains governed by +this License without regard to the additional permissions. + +When you convey a copy of a covered work, you may at your option +remove any additional permissions from that copy, or from any part of +it. (Additional permissions may be written to require their own +removal in certain cases when you modify the work.) You may place +additional permissions on material, added by you to a covered work, +for which you have or can give appropriate copyright permission. + +Notwithstanding any other provision of this License, for material you +add to a covered work, you may (if authorized by the copyright holders +of that material) supplement the terms of this License with terms: + +- a) Disclaiming warranty or limiting liability differently from the +terms of sections 15 and 16 of this License; or +- b) Requiring preservation of specified reasonable legal notices or +author attributions in that material or in the Appropriate Legal +Notices displayed by works containing it; or +- c) Prohibiting misrepresentation of the origin of that material, +or requiring that modified versions of such material be marked in +reasonable ways as different from the original version; or +- d) Limiting the use for publicity purposes of names of licensors +or authors of the material; or +- e) Declining to grant rights under trademark law for use of some +trade names, trademarks, or service marks; or +- f) Requiring indemnification of licensors and authors of that +material by anyone who conveys the material (or modified versions +of it) with contractual assumptions of liability to the recipient, +for any liability that these contractual assumptions directly +impose on those licensors and authors. + +All other non-permissive additional terms are considered "further +restrictions" within the meaning of section 10. If the Program as you +received it, or any part of it, contains a notice stating that it is +governed by this License along with a term that is a further +restriction, you may remove that term. If a license document contains +a further restriction but permits relicensing or conveying under this +License, you may add to a covered work material governed by the terms +of that license document, provided that the further restriction does +not survive such relicensing or conveying. + +If you add terms to a covered work in accord with this section, you +must place, in the relevant source files, a statement of the +additional terms that apply to those files, or a notice indicating +where to find the applicable terms. + +Additional terms, permissive or non-permissive, may be stated in the +form of a separately written license, or stated as exceptions; the +above requirements apply either way. + +#### 8. Termination. + +You may not propagate or modify a covered work except as expressly +provided under this License. Any attempt otherwise to propagate or +modify it is void, and will automatically terminate your rights under +this License (including any patent licenses granted under the third +paragraph of section 11). + +However, if you cease all violation of this License, then your license +from a particular copyright holder is reinstated (a) provisionally, +unless and until the copyright holder explicitly and finally +terminates your license, and (b) permanently, if the copyright holder +fails to notify you of the violation by some reasonable means prior to +60 days after the cessation. + +Moreover, your license from a particular copyright holder is +reinstated permanently if the copyright holder notifies you of the +violation by some reasonable means, this is the first time you have +received notice of violation of this License (for any work) from that +copyright holder, and you cure the violation prior to 30 days after +your receipt of the notice. + +Termination of your rights under this section does not terminate the +licenses of parties who have received copies or rights from you under +this License. If your rights have been terminated and not permanently +reinstated, you do not qualify to receive new licenses for the same +material under section 10. + +#### 9. Acceptance Not Required for Having Copies. + +You are not required to accept this License in order to receive or run +a copy of the Program. Ancillary propagation of a covered work +occurring solely as a consequence of using peer-to-peer transmission +to receive a copy likewise does not require acceptance. However, +nothing other than this License grants you permission to propagate or +modify any covered work. These actions infringe copyright if you do +not accept this License. Therefore, by modifying or propagating a +covered work, you indicate your acceptance of this License to do so. + +#### 10. Automatic Licensing of Downstream Recipients. + +Each time you convey a covered work, the recipient automatically +receives a license from the original licensors, to run, modify and +propagate that work, subject to this License. You are not responsible +for enforcing compliance by third parties with this License. + +An "entity transaction" is a transaction transferring control of an +organization, or substantially all assets of one, or subdividing an +organization, or merging organizations. If propagation of a covered +work results from an entity transaction, each party to that +transaction who receives a copy of the work also receives whatever +licenses to the work the party's predecessor in interest had or could +give under the previous paragraph, plus a right to possession of the +Corresponding Source of the work from the predecessor in interest, if +the predecessor has it or can get it with reasonable efforts. + +You may not impose any further restrictions on the exercise of the +rights granted or affirmed under this License. For example, you may +not impose a license fee, royalty, or other charge for exercise of +rights granted under this License, and you may not initiate litigation +(including a cross-claim or counterclaim in a lawsuit) alleging that +any patent claim is infringed by making, using, selling, offering for +sale, or importing the Program or any portion of it. + +#### 11. Patents. + +A "contributor" is a copyright holder who authorizes use under this +License of the Program or a work on which the Program is based. The +work thus licensed is called the contributor's "contributor version". + +A contributor's "essential patent claims" are all patent claims owned +or controlled by the contributor, whether already acquired or +hereafter acquired, that would be infringed by some manner, permitted +by this License, of making, using, or selling its contributor version, +but do not include claims that would be infringed only as a +consequence of further modification of the contributor version. For +purposes of this definition, "control" includes the right to grant +patent sublicenses in a manner consistent with the requirements of +this License. + +Each contributor grants you a non-exclusive, worldwide, royalty-free +patent license under the contributor's essential patent claims, to +make, use, sell, offer for sale, import and otherwise run, modify and +propagate the contents of its contributor version. + +In the following three paragraphs, a "patent license" is any express +agreement or commitment, however denominated, not to enforce a patent +(such as an express permission to practice a patent or covenant not to +sue for patent infringement). To "grant" such a patent license to a +party means to make such an agreement or commitment not to enforce a +patent against the party. + +If you convey a covered work, knowingly relying on a patent license, +and the Corresponding Source of the work is not available for anyone +to copy, free of charge and under the terms of this License, through a +publicly available network server or other readily accessible means, +then you must either (1) cause the Corresponding Source to be so +available, or (2) arrange to deprive yourself of the benefit of the +patent license for this particular work, or (3) arrange, in a manner +consistent with the requirements of this License, to extend the patent +license to downstream recipients. "Knowingly relying" means you have +actual knowledge that, but for the patent license, your conveying the +covered work in a country, or your recipient's use of the covered work +in a country, would infringe one or more identifiable patents in that +country that you have reason to believe are valid. + +If, pursuant to or in connection with a single transaction or +arrangement, you convey, or propagate by procuring conveyance of, a +covered work, and grant a patent license to some of the parties +receiving the covered work authorizing them to use, propagate, modify +or convey a specific copy of the covered work, then the patent license +you grant is automatically extended to all recipients of the covered +work and works based on it. + +A patent license is "discriminatory" if it does not include within the +scope of its coverage, prohibits the exercise of, or is conditioned on +the non-exercise of one or more of the rights that are specifically +granted under this License. You may not convey a covered work if you +are a party to an arrangement with a third party that is in the +business of distributing software, under which you make payment to the +third party based on the extent of your activity of conveying the +work, and under which the third party grants, to any of the parties +who would receive the covered work from you, a discriminatory patent +license (a) in connection with copies of the covered work conveyed by +you (or copies made from those copies), or (b) primarily for and in +connection with specific products or compilations that contain the +covered work, unless you entered into that arrangement, or that patent +license was granted, prior to 28 March 2007. + +Nothing in this License shall be construed as excluding or limiting +any implied license or other defenses to infringement that may +otherwise be available to you under applicable patent law. + +#### 12. No Surrender of Others' Freedom. + +If conditions are imposed on you (whether by court order, agreement or +otherwise) that contradict the conditions of this License, they do not +excuse you from the conditions of this License. If you cannot convey a +covered work so as to satisfy simultaneously your obligations under +this License and any other pertinent obligations, then as a +consequence you may not convey it at all. For example, if you agree to +terms that obligate you to collect a royalty for further conveying +from those to whom you convey the Program, the only way you could +satisfy both those terms and this License would be to refrain entirely +from conveying the Program. + +#### 13. Use with the GNU Affero General Public License. + +Notwithstanding any other provision of this License, you have +permission to link or combine any covered work with a work licensed +under version 3 of the GNU Affero General Public License into a single +combined work, and to convey the resulting work. The terms of this +License will continue to apply to the part which is the covered work, +but the special requirements of the GNU Affero General Public License, +section 13, concerning interaction through a network will apply to the +combination as such. + +#### 14. Revised Versions of this License. + +The Free Software Foundation may publish revised and/or new versions +of the GNU General Public License from time to time. Such new versions +will be similar in spirit to the present version, but may differ in +detail to address new problems or concerns. + +Each version is given a distinguishing version number. If the Program +specifies that a certain numbered version of the GNU General Public +License "or any later version" applies to it, you have the option of +following the terms and conditions either of that numbered version or +of any later version published by the Free Software Foundation. If the +Program does not specify a version number of the GNU General Public +License, you may choose any version ever published by the Free +Software Foundation. + +If the Program specifies that a proxy can decide which future versions +of the GNU General Public License can be used, that proxy's public +statement of acceptance of a version permanently authorizes you to +choose that version for the Program. + +Later license versions may give you additional or different +permissions. However, no additional obligations are imposed on any +author or copyright holder as a result of your choosing to follow a +later version. + +#### 15. Disclaimer of Warranty. + +THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY +APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT +HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT +WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND +PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE +DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR +CORRECTION. + +#### 16. Limitation of Liability. + +IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR +CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, +INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES +ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT +NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR +LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM +TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER +PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. + +#### 17. Interpretation of Sections 15 and 16. + +If the disclaimer of warranty and limitation of liability provided +above cannot be given local legal effect according to their terms, +reviewing courts shall apply local law that most closely approximates +an absolute waiver of all civil liability in connection with the +Program, unless a warranty or assumption of liability accompanies a +copy of the Program in return for a fee. + +END OF TERMS AND CONDITIONS + +### How to Apply These Terms to Your New Programs + +If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these +terms. + +To do so, attach the following notices to the program. It is safest to +attach them to the start of each source file to most effectively state +the exclusion of warranty; and each file should have at least the +"copyright" line and a pointer to where the full notice is found. + + +Copyright (C) + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 3 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see . + +Also add information on how to contact you by electronic and paper +mail. + +If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + Copyright (C) +This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands \`show w' and \`show c' should show the +appropriate parts of the General Public License. Of course, your +program's commands might be different; for a GUI interface, you would +use an "about box". + +You should also get your employer (if you work as a programmer) or +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. For more information on this, and how to apply and follow +the GNU GPL, see . + +The GNU General Public License does not permit incorporating your +program into proprietary programs. If your program is a subroutine +library, you may consider it more useful to permit linking proprietary +applications with the library. If this is what you want to do, use the +GNU Lesser General Public License instead of this License. But first, +please read . \ No newline at end of file diff --git a/Makefile b/Makefile new file mode 100644 index 00000000..c17477a8 --- /dev/null +++ b/Makefile @@ -0,0 +1,12 @@ +protoc: + @go mod tidy -v + @go mod vendor + # Install specific version for gogo-proto + @go list -f '{{.Path}}/...@{{.Version}}' -m github.com/gogo/protobuf | xargs go get -v + # Install specific version for protobuf lib + @go list -f '{{.Path}}/...@{{.Version}}' -m github.com/golang/protobuf | xargs go get -v + # Protoc generate + @find . -type f -name '*.proto' -not -path './vendor/*' \ + -exec protoc \ + --proto_path=.:./vendor \ + --gofast_out=plugins=grpc,paths=source_relative:. '{}' \; diff --git a/README.md b/README.md new file mode 100644 index 00000000..9247a10f --- /dev/null +++ b/README.md @@ -0,0 +1,99 @@ +# NeoFS-proto + +NeoFS-proto repository contains implementation of core NeoFS structures that +can be used for integration with NeoFS. + +## Description + +Repository contains 13 packages that implement NeoFS core structures. These +packages mostly contain protobuf files with service and structure definitions +or NeoFS core types with complemented functions. + +### Accounting + +Accounting package defines services and structures for accounting operations: +balance request and `cheque` operations for withdraw. `Cheque` is a structure +with inner ring signatures, which approve that user can withdraw requested +amount of assets. NeoFS smart contract takes binary formatted `cheque` as a +parameter in withdraw call. + +### Bootstrap + +Bootstrap package defines bootstrap service which is used by storage nodes to +connect to the storage network. + +### Chain + +Chain package contains util functions for operations with NEO Blockchain types: +wallet addresses, script-hashes. + +### Container + +Container package defines service and structures for operations with containers. +Objects in NeoFS are stored in containers. Container defines storage +policy for the objects. + +### Decimal + +Decimal defines custom decimal implementation which is used in accounting +operations. + +### Hash + +Hash package defines homomorphic hash type. + +### Internal + +Internal package defines constant error type and proto interface for custom +protobuf structures. + +### Object + +Object package defines service and structures for object operations. Object is +a core storage structure in NeoFS. Package contains detailed information +about object internal structure. + +### Query + +Query package defines structure for object search requests. + +### Refs + +Refs package defines core identity types: Object ID, Container ID, etc. + +### Service + +Service package defines util structure and functions for all NeoFS services +operations: TTL and request signature management, node roles, epoch retriever. + +### Session + +Session package defines service and structures for session obtain. Object +operations require an established session with pair of session keys signed by +owner of the object. + +### State + +State package defines service and structures for metrics gathering. + +## How to use + +NeoFS-proto packages contain godoc documentation. Examples of using most of +these packages can be found in NeoFS-CLI repository. CLI implements and +demonstrates all basic interactions with NeoFS: container, object, storage +group, and accounting operations. + +Protobuf files are recompiled with the command: + +``` +$ make protoc +``` + +## Contributing + +At this moment, we do not accept contributions. + +## License + +This project is licensed under the GPLv3 License - +see the [LICENSE.md](LICENSE.md) file for details diff --git a/accounting/fixtures/cheque.sh b/accounting/fixtures/cheque.sh new file mode 100755 index 00000000..93368138 --- /dev/null +++ b/accounting/fixtures/cheque.sh @@ -0,0 +1,8 @@ +#!/bin/bash + +CHEQUE=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 +DIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd ) + +echo $CHEQUE | xxd -p -r > $DIR/cheque_data + +exit 0 diff --git a/accounting/fixtures/cheque_data b/accounting/fixtures/cheque_data new file mode 100644 index 00000000..cd7b2866 Binary files /dev/null and b/accounting/fixtures/cheque_data differ diff --git a/accounting/service.go b/accounting/service.go new file mode 100644 index 00000000..df74e588 --- /dev/null +++ b/accounting/service.go @@ -0,0 +1,49 @@ +package accounting + +import ( + "github.com/nspcc-dev/neofs-proto/decimal" + "github.com/nspcc-dev/neofs-proto/internal" + "github.com/nspcc-dev/neofs-proto/refs" +) + +type ( + // OwnerID type alias. + OwnerID = refs.OwnerID + + // Decimal type alias. + Decimal = decimal.Decimal + + // Filter is used to filter accounts by criteria. + Filter func(acc *Account) bool +) + +const ( + // ErrEmptyAddress is raised when passed Address is empty. + ErrEmptyAddress = internal.Error("empty address") + + // ErrEmptyLockTarget is raised when passed LockTarget is empty. + ErrEmptyLockTarget = internal.Error("empty lock target") + + // ErrEmptyContainerID is raised when passed CID is empty. + ErrEmptyContainerID = internal.Error("empty container ID") + + // ErrEmptyParentAddress is raised when passed ParentAddress is empty. + ErrEmptyParentAddress = internal.Error("empty parent address") +) + +// SetTTL sets ttl to BalanceRequest to satisfy TTLRequest interface. +func (m BalanceRequest) SetTTL(v uint32) { m.TTL = v } + +// SumFunds goes through all accounts and sums up active funds. +func SumFunds(accounts []*Account) (res *decimal.Decimal) { + res = decimal.Zero.Copy() + + for i := range accounts { + if accounts[i] == nil { + continue + } + + res = res.Add(accounts[i].ActiveFunds) + } + return +} diff --git a/accounting/service.pb.go b/accounting/service.pb.go new file mode 100644 index 00000000..8708db37 Binary files /dev/null and b/accounting/service.pb.go differ diff --git a/accounting/service.proto b/accounting/service.proto new file mode 100644 index 00000000..b75bf9c9 --- /dev/null +++ b/accounting/service.proto @@ -0,0 +1,23 @@ +syntax = "proto3"; +package accounting; +option go_package = "github.com/nspcc-dev/neofs-proto/accounting"; + +import "decimal/decimal.proto"; +import "accounting/types.proto"; +import "github.com/gogo/protobuf/gogoproto/gogo.proto"; + +option (gogoproto.stable_marshaler_all) = true; + +service Accounting { + rpc Balance(BalanceRequest) returns (BalanceResponse); +} + +message BalanceRequest { + bytes OwnerID = 1 [(gogoproto.customtype) = "OwnerID", (gogoproto.nullable) = false]; + uint32 TTL = 2; +} + +message BalanceResponse { + decimal.Decimal Balance = 1; + repeated Account LockAccounts = 2; +} diff --git a/accounting/types.go b/accounting/types.go new file mode 100644 index 00000000..9c76fc75 --- /dev/null +++ b/accounting/types.go @@ -0,0 +1,353 @@ +package accounting + +import ( + "crypto/ecdsa" + "crypto/rand" + "encoding/binary" + "reflect" + + "github.com/mr-tron/base58" + crypto "github.com/nspcc-dev/neofs-crypto" + "github.com/nspcc-dev/neofs-proto/chain" + "github.com/nspcc-dev/neofs-proto/decimal" + "github.com/nspcc-dev/neofs-proto/internal" + "github.com/nspcc-dev/neofs-proto/refs" + "github.com/pkg/errors" +) + +type ( + // Cheque structure that describes a user request for withdrawal of funds. + Cheque struct { + ID ChequeID + Owner refs.OwnerID + Amount *decimal.Decimal + Height uint64 + Signatures []ChequeSignature + } + + // BalanceReceiver interface that is used to retrieve user balance by address. + BalanceReceiver interface { + Balance(accountAddress string) (*Account, error) + } + + // ChequeID is identifier of user request for withdrawal of funds. + ChequeID string + + // CID type alias. + CID = refs.CID + + // SGID type alias. + SGID = refs.SGID + + // ChequeSignature contains public key and hash, and is used to verify signatures. + ChequeSignature struct { + Key *ecdsa.PublicKey + Hash []byte + } +) + +const ( + // ErrWrongSignature is raised when wrong signature is passed. + ErrWrongSignature = internal.Error("wrong signature") + + // ErrWrongPublicKey is raised when wrong public key is passed. + ErrWrongPublicKey = internal.Error("wrong public key") + + // ErrWrongChequeData is raised when passed bytes cannot not be parsed as valid Cheque. + ErrWrongChequeData = internal.Error("wrong cheque data") + + // ErrInvalidLength is raised when passed bytes cannot not be parsed as valid ChequeID. + ErrInvalidLength = internal.Error("invalid length") + + u16size = 2 + u64size = 8 + + signaturesOffset = chain.AddressLength + refs.OwnerIDSize + u64size + u64size +) + +// NewChequeID generates valid random ChequeID using crypto/rand.Reader. +func NewChequeID() (ChequeID, error) { + d := make([]byte, chain.AddressLength) + if _, err := rand.Read(d); err != nil { + return "", err + } + + id := base58.Encode(d) + + return ChequeID(id), nil +} + +// String returns string representation of ChequeID. +func (b ChequeID) String() string { return string(b) } + +// Empty returns true, if ChequeID is empty. +func (b ChequeID) Empty() bool { return len(b) == 0 } + +// Valid validates ChequeID. +func (b ChequeID) Valid() bool { + d, err := base58.Decode(string(b)) + return err == nil && len(d) == chain.AddressLength +} + +// Bytes returns bytes representation of ChequeID. +func (b ChequeID) Bytes() []byte { + d, err := base58.Decode(string(b)) + if err != nil { + return make([]byte, chain.AddressLength) + } + return d +} + +// Equal checks that current ChequeID is equal to passed ChequeID. +func (b ChequeID) Equal(b2 ChequeID) bool { + return b.Valid() && b2.Valid() && string(b) == string(b2) +} + +// Unmarshal tries to parse []byte into valid ChequeID. +func (b *ChequeID) Unmarshal(data []byte) error { + *b = ChequeID(base58.Encode(data)) + if !b.Valid() { + return ErrInvalidLength + } + return nil +} + +// Size returns size (chain.AddressLength). +func (b ChequeID) Size() int { + return chain.AddressLength +} + +// MarshalTo tries to marshal ChequeID into passed bytes and returns +// count of copied bytes or error, if bytes len is not enough to contain ChequeID. +func (b ChequeID) MarshalTo(data []byte) (int, error) { + if len(data) < chain.AddressLength { + return 0, ErrInvalidLength + } + return copy(data, b.Bytes()), nil +} + +// Equals checks that m and tx are valid and equal Tx values. +func (m Tx) Equals(tx Tx) bool { + return m.From == tx.From && + m.To == tx.To && + m.Type == tx.Type && + m.Amount == tx.Amount +} + +// Verify validates current Cheque and Signatures that are generated for current Cheque. +func (b Cheque) Verify() error { + data := b.marshalBody() + for i, sign := range b.Signatures { + if err := crypto.VerifyRFC6979(sign.Key, data, sign.Hash); err != nil { + return errors.Wrapf(ErrWrongSignature, "item #%d: %s", i, err.Error()) + } + } + + return nil +} + +// Sign is used to sign current Cheque and stores result inside b.Signatures. +func (b *Cheque) Sign(key *ecdsa.PrivateKey) error { + hash, err := crypto.SignRFC6979(key, b.marshalBody()) + if err != nil { + return err + } + + b.Signatures = append(b.Signatures, ChequeSignature{ + Key: &key.PublicKey, + Hash: hash, + }) + + return nil +} + +func (b *Cheque) marshalBody() []byte { + buf := make([]byte, signaturesOffset) + + var offset int + + offset += copy(buf, b.ID.Bytes()) + offset += copy(buf[offset:], b.Owner.Bytes()) + + binary.BigEndian.PutUint64(buf[offset:], uint64(b.Amount.Value)) + offset += u64size + + binary.BigEndian.PutUint64(buf[offset:], b.Height) + + return buf +} + +func (b *Cheque) unmarshalBody(buf []byte) error { + var offset int + + if len(buf) < signaturesOffset { + return ErrWrongChequeData + } + + { // unmarshal UUID + if err := b.ID.Unmarshal(buf[offset : offset+chain.AddressLength]); err != nil { + return err + } + offset += chain.AddressLength + } + + { // unmarshal OwnerID + if err := b.Owner.Unmarshal(buf[offset : offset+refs.OwnerIDSize]); err != nil { + return err + } + offset += refs.OwnerIDSize + } + + { // unmarshal amount + amount := int64(binary.BigEndian.Uint64(buf[offset:])) + b.Amount = decimal.New(amount) + offset += u64size + } + + { // unmarshal height + b.Height = binary.BigEndian.Uint64(buf[offset:]) + offset += u64size + } + + return nil +} + +// MarshalBinary is used to marshal Cheque into bytes. +func (b Cheque) MarshalBinary() ([]byte, error) { + var ( + count = len(b.Signatures) + buf = make([]byte, b.Size()) + offset = copy(buf, b.marshalBody()) + ) + + binary.BigEndian.PutUint16(buf[offset:], uint16(count)) + offset += u16size + + for _, sign := range b.Signatures { + key := crypto.MarshalPublicKey(sign.Key) + offset += copy(buf[offset:], key) + offset += copy(buf[offset:], sign.Hash) + } + + return buf, nil +} + +// Size returns size of Cheque (count of bytes needs to store it). +func (b Cheque) Size() int { + return signaturesOffset + u16size + + len(b.Signatures)*(crypto.PublicKeyCompressedSize+crypto.RFC6979SignatureSize) +} + +// UnmarshalBinary tries to parse []byte into valid Cheque. +func (b *Cheque) UnmarshalBinary(buf []byte) error { + if err := b.unmarshalBody(buf); err != nil { + return err + } + + body := buf[:signaturesOffset] + + count := int64(binary.BigEndian.Uint16(buf[signaturesOffset:])) + offset := signaturesOffset + u16size + + if ln := count * int64(crypto.PublicKeyCompressedSize+crypto.RFC6979SignatureSize); ln > int64(len(buf[offset:])) { + return ErrWrongChequeData + } + + for i := int64(0); i < count; i++ { + sign := ChequeSignature{ + Key: crypto.UnmarshalPublicKey(buf[offset : offset+crypto.PublicKeyCompressedSize]), + Hash: make([]byte, crypto.RFC6979SignatureSize), + } + + offset += crypto.PublicKeyCompressedSize + if sign.Key == nil { + return errors.Wrapf(ErrWrongPublicKey, "item #%d", i) + } + + offset += copy(sign.Hash, buf[offset:offset+crypto.RFC6979SignatureSize]) + if err := crypto.VerifyRFC6979(sign.Key, body, sign.Hash); err != nil { + return errors.Wrapf(ErrWrongSignature, "item #%d: %s (offset=%d, len=%d)", i, err.Error(), offset, len(sign.Hash)) + } + + b.Signatures = append(b.Signatures, sign) + } + + return nil +} + +// ErrNotEnoughFunds generates error using address and amounts. +func ErrNotEnoughFunds(addr string, needed, residue *decimal.Decimal) error { + return errors.Errorf("not enough funds (requested=%s, residue=%s, addr=%s", needed, residue, addr) +} + +func (m *Account) hasLockAcc(addr string) bool { + for i := range m.LockAccounts { + if m.LockAccounts[i].Address == addr { + return true + } + } + return false +} + +// ValidateLock checks that account can be locked. +func (m *Account) ValidateLock() error { + switch { + case m.Address == "": + return ErrEmptyAddress + case m.ParentAddress == "": + return ErrEmptyParentAddress + case m.LockTarget == nil: + return ErrEmptyLockTarget + } + + switch v := m.LockTarget.Target.(type) { + case *LockTarget_WithdrawTarget: + if v.WithdrawTarget.Cheque != m.Address { + return errors.Errorf("wrong cheque ID: expected %s, has %s", m.Address, v.WithdrawTarget.Cheque) + } + case *LockTarget_ContainerCreateTarget: + switch { + case v.ContainerCreateTarget.CID.Empty(): + return ErrEmptyContainerID + } + } + return nil +} + +// CanLock checks possibility to lock funds. +func (m *Account) CanLock(lockAcc *Account) error { + switch { + case m.ActiveFunds.LT(lockAcc.ActiveFunds): + return ErrNotEnoughFunds(lockAcc.ParentAddress, lockAcc.ActiveFunds, m.ActiveFunds) + case m.hasLockAcc(lockAcc.Address): + return errors.Errorf("could not lock account(%s) funds: duplicating lock(%s)", m.Address, lockAcc.Address) + default: + return nil + } +} + +// LockForWithdraw checks that account contains locked funds by passed ChequeID. +func (m *Account) LockForWithdraw(chequeID string) bool { + switch v := m.LockTarget.Target.(type) { + case *LockTarget_WithdrawTarget: + return v.WithdrawTarget.Cheque == chequeID + } + return false +} + +// LockForContainerCreate checks that account contains locked funds for container creation. +func (m *Account) LockForContainerCreate(cid refs.CID) bool { + switch v := m.LockTarget.Target.(type) { + case *LockTarget_ContainerCreateTarget: + return v.ContainerCreateTarget.CID.Equal(cid) + } + return false +} + +// Equal checks that current Settlement is equal to passed Settlement. +func (m *Settlement) Equal(s *Settlement) bool { + if s == nil || m.Epoch != s.Epoch || len(m.Transactions) != len(s.Transactions) { + return false + } + return len(m.Transactions) == 0 || reflect.DeepEqual(m.Transactions, s.Transactions) +} diff --git a/accounting/types.pb.go b/accounting/types.pb.go new file mode 100644 index 00000000..cb4b0c8a Binary files /dev/null and b/accounting/types.pb.go differ diff --git a/accounting/types.proto b/accounting/types.proto new file mode 100644 index 00000000..1b4e7838 --- /dev/null +++ b/accounting/types.proto @@ -0,0 +1,106 @@ +syntax = "proto3"; +package accounting; +option go_package = "github.com/nspcc-dev/neofs-proto/accounting"; + +import "decimal/decimal.proto"; +import "github.com/gogo/protobuf/gogoproto/gogo.proto"; + +option (gogoproto.stable_marshaler_all) = true; + +// Snapshot accounting messages +message Account { + bytes OwnerID = 1 [(gogoproto.customtype) = "OwnerID", (gogoproto.nullable) = false]; + string Address = 2; + string ParentAddress = 3; + decimal.Decimal ActiveFunds = 4; + Lifetime Lifetime = 5 [(gogoproto.nullable) = false]; + LockTarget LockTarget = 6; + repeated Account LockAccounts = 7; +} + +message LockTarget { + oneof Target { + WithdrawTarget WithdrawTarget = 1; + ContainerCreateTarget ContainerCreateTarget = 2; + } +} + +// Snapshot balance messages +message Balances { + repeated Account Accounts = 1 [(gogoproto.nullable) = false]; +} + +// PayIn / PayOut messages +message PayIO { + uint64 BlockID = 1; + repeated Tx Transactions = 2 [(gogoproto.nullable) = false]; +} + +// Clearing messages +message Clearing { + repeated Tx Transactions = 1 [(gogoproto.nullable) = false]; +} + +// Clearing messages +message Withdraw { + string ID = 1; + uint64 Epoch = 2; + Tx Transaction = 3; +} + +// Lifetime of locks +message Lifetime { + enum Unit { + Unlimited = 0; + NeoFSEpoch = 1; + NeoBlock = 2; + } + + Unit unit = 1 [(gogoproto.customname) = "Unit"]; + int64 Value = 2; +} + +// Transaction messages +message Tx { + enum Type { + Unknown = 0; + Withdraw = 1; + PayIO = 2; + Inner = 3; + } + + Type type = 1 [(gogoproto.customname) = "Type"]; + string From = 2; + string To = 3; + decimal.Decimal Amount = 4; + bytes PublicKeys = 5; // of sender +} + +message Settlement { + message Receiver { + string To = 1; + decimal.Decimal Amount = 2; + } + + message Container { + bytes CID = 1 [(gogoproto.customtype) = "CID", (gogoproto.nullable) = false]; + repeated bytes SGIDs = 2 [(gogoproto.customtype) = "SGID", (gogoproto.nullable) = false]; + } + + message Tx { + string From = 1; + Container Container = 2 [(gogoproto.nullable) = false]; + repeated Receiver Receivers = 3 [(gogoproto.nullable) = false]; + } + + uint64 Epoch = 1; + repeated Tx Transactions = 2; +} + +message ContainerCreateTarget { + bytes CID = 1 [(gogoproto.customtype) = "CID", (gogoproto.nullable) = false]; +} + +message WithdrawTarget { + string Cheque = 1; +} diff --git a/accounting/types_test.go b/accounting/types_test.go new file mode 100644 index 00000000..c78e5b40 --- /dev/null +++ b/accounting/types_test.go @@ -0,0 +1,84 @@ +package accounting + +import ( + "io/ioutil" + "testing" + + "github.com/mr-tron/base58" + "github.com/nspcc-dev/neofs-crypto/test" + "github.com/nspcc-dev/neofs-proto/chain" + "github.com/nspcc-dev/neofs-proto/decimal" + "github.com/nspcc-dev/neofs-proto/refs" + "github.com/stretchr/testify/require" +) + +func TestCheque(t *testing.T) { + t.Run("new/valid", func(t *testing.T) { + id, err := NewChequeID() + require.NoError(t, err) + require.True(t, id.Valid()) + + d := make([]byte, chain.AddressLength+1) + + // expected size + 1 byte + str := base58.Encode(d) + require.False(t, ChequeID(str).Valid()) + + // expected size - 1 byte + str = base58.Encode(d[:len(d)-2]) + require.False(t, ChequeID(str).Valid()) + + // wrong encoding + d = d[:len(d)-1] // normal size + require.False(t, ChequeID(string(d)).Valid()) + }) + + t.Run("marshal/unmarshal", func(t *testing.T) { + var b2 = new(Cheque) + + key1 := test.DecodeKey(0) + key2 := test.DecodeKey(1) + + id, err := NewChequeID() + require.NoError(t, err) + + owner, err := refs.NewOwnerID(&key1.PublicKey) + require.NoError(t, err) + + b1 := &Cheque{ + ID: id, + Owner: owner, + Height: 100, + Amount: decimal.NewGAS(100), + } + + require.NoError(t, b1.Sign(key1)) + require.NoError(t, b1.Sign(key2)) + + data, err := b1.MarshalBinary() + require.NoError(t, err) + + require.Len(t, data, b1.Size()) + require.NoError(t, b2.UnmarshalBinary(data)) + require.Equal(t, b1, b2) + + require.NoError(t, b1.Verify()) + require.NoError(t, b2.Verify()) + }) + + t.Run("example from SC", func(t *testing.T) { + var pathToCheque = "fixtures/cheque_data" + expect, err := ioutil.ReadFile(pathToCheque) + require.NoError(t, err) + + var cheque Cheque + require.NoError(t, cheque.UnmarshalBinary(expect)) + + actual, err := cheque.MarshalBinary() + require.NoError(t, err) + + require.Equal(t, expect, actual) + + require.NoError(t, cheque.Verify()) + }) +} diff --git a/accounting/withdraw.go b/accounting/withdraw.go new file mode 100644 index 00000000..3cd27666 --- /dev/null +++ b/accounting/withdraw.go @@ -0,0 +1,53 @@ +package accounting + +import ( + "encoding/binary" + + "github.com/nspcc-dev/neofs-proto/refs" +) + +type ( + // MessageID type alias. + MessageID = refs.MessageID +) + +// SetTTL sets ttl to GetRequest to satisfy TTLRequest interface. +func (m *GetRequest) SetTTL(v uint32) { m.TTL = v } + +// SetTTL sets ttl to PutRequest to satisfy TTLRequest interface. +func (m *PutRequest) SetTTL(v uint32) { m.TTL = v } + +// SetTTL sets ttl to ListRequest to satisfy TTLRequest interface. +func (m *ListRequest) SetTTL(v uint32) { m.TTL = v } + +// SetTTL sets ttl to DeleteRequest to satisfy TTLRequest interface. +func (m *DeleteRequest) SetTTL(v uint32) { m.TTL = v } + +// SetSignature sets signature to PutRequest to satisfy SignedRequest interface. +func (m *PutRequest) SetSignature(v []byte) { m.Signature = v } + +// SetSignature sets signature to DeleteRequest to satisfy SignedRequest interface. +func (m *DeleteRequest) SetSignature(v []byte) { m.Signature = v } + +// PrepareData prepares bytes representation of PutRequest to satisfy SignedRequest interface. +func (m *PutRequest) PrepareData() ([]byte, error) { + var offset int + // MessageID-len + OwnerID-len + Amount + Height + buf := make([]byte, refs.UUIDSize+refs.OwnerIDSize+binary.MaxVarintLen64+binary.MaxVarintLen64) + offset += copy(buf[offset:], m.MessageID.Bytes()) + offset += copy(buf[offset:], m.OwnerID.Bytes()) + offset += binary.PutVarint(buf[offset:], m.Amount.Value) + binary.PutUvarint(buf[offset:], m.Height) + return buf, nil +} + +// PrepareData prepares bytes representation of DeleteRequest to satisfy SignedRequest interface. +func (m *DeleteRequest) PrepareData() ([]byte, error) { + var offset int + // ID-len + OwnerID-len + MessageID-len + buf := make([]byte, refs.UUIDSize+refs.OwnerIDSize+refs.UUIDSize) + offset += copy(buf[offset:], m.ID.Bytes()) + offset += copy(buf[offset:], m.OwnerID.Bytes()) + copy(buf[offset:], m.MessageID.Bytes()) + return buf, nil +} diff --git a/accounting/withdraw.pb.go b/accounting/withdraw.pb.go new file mode 100644 index 00000000..967a2ce0 Binary files /dev/null and b/accounting/withdraw.pb.go differ diff --git a/accounting/withdraw.proto b/accounting/withdraw.proto new file mode 100644 index 00000000..c099ef7c --- /dev/null +++ b/accounting/withdraw.proto @@ -0,0 +1,61 @@ +syntax = "proto3"; +package accounting; +option go_package = "github.com/nspcc-dev/neofs-proto/accounting"; + +import "decimal/decimal.proto"; +import "github.com/gogo/protobuf/gogoproto/gogo.proto"; + +option (gogoproto.stable_marshaler_all) = true; + +service Withdraw { + rpc Get(GetRequest) returns (GetResponse); + rpc Put(PutRequest) returns (PutResponse); + rpc List(ListRequest) returns (ListResponse); + rpc Delete(DeleteRequest) returns (DeleteResponse); +} + +message Item { + bytes ID = 1 [(gogoproto.customtype) = "ChequeID", (gogoproto.nullable) = false]; + bytes OwnerID = 2 [(gogoproto.customtype) = "OwnerID", (gogoproto.nullable) = false]; + decimal.Decimal Amount = 3; + uint64 Height = 4; + bytes Payload = 5; +} + +message GetRequest { + bytes ID = 1 [(gogoproto.customtype) = "ChequeID", (gogoproto.nullable) = false]; + bytes OwnerID = 2 [(gogoproto.customtype) = "OwnerID", (gogoproto.nullable) = false]; + uint32 TTL = 3; +} +message GetResponse { + Item Withdraw = 1; +} + +message PutRequest { + bytes OwnerID = 1 [(gogoproto.customtype) = "OwnerID", (gogoproto.nullable) = false]; + decimal.Decimal Amount = 2; + uint64 Height = 3; + bytes MessageID = 4 [(gogoproto.customtype) = "MessageID", (gogoproto.nullable) = false]; + bytes Signature = 5; + uint32 TTL = 6; +} +message PutResponse { + bytes ID = 1 [(gogoproto.customtype) = "ChequeID", (gogoproto.nullable) = false]; +} + +message ListRequest { + bytes OwnerID = 1 [(gogoproto.customtype) = "OwnerID", (gogoproto.nullable) = false]; + uint32 TTL = 2; +} +message ListResponse { + repeated Item Items = 1; +} + +message DeleteRequest { + bytes ID = 1 [(gogoproto.customtype) = "ChequeID", (gogoproto.nullable) = false]; + bytes OwnerID = 2 [(gogoproto.customtype) = "OwnerID", (gogoproto.nullable) = false]; + bytes MessageID = 3 [(gogoproto.customtype) = "MessageID", (gogoproto.nullable) = false]; + bytes Signature = 4; + uint32 TTL = 5; +} +message DeleteResponse {} diff --git a/bootstrap/service.go b/bootstrap/service.go new file mode 100644 index 00000000..6d0d3ca9 --- /dev/null +++ b/bootstrap/service.go @@ -0,0 +1,11 @@ +package bootstrap + +import ( + "github.com/nspcc-dev/neofs-proto/service" +) + +// NodeType type alias. +type NodeType = service.NodeRole + +// SetTTL sets ttl to Request to satisfy TTLRequest interface. +func (m *Request) SetTTL(v uint32) { m.TTL = v } diff --git a/bootstrap/service.pb.go b/bootstrap/service.pb.go new file mode 100644 index 00000000..2fcdb4d2 Binary files /dev/null and b/bootstrap/service.pb.go differ diff --git a/bootstrap/service.proto b/bootstrap/service.proto new file mode 100644 index 00000000..3c9dcedc --- /dev/null +++ b/bootstrap/service.proto @@ -0,0 +1,20 @@ +syntax = "proto3"; +package bootstrap; +option go_package = "github.com/nspcc-dev/neofs-proto/bootstrap"; + +import "bootstrap/types.proto"; +import "github.com/gogo/protobuf/gogoproto/gogo.proto"; + +option (gogoproto.stable_marshaler_all) = true; + +// The Bootstrap service definition. +service Bootstrap { + rpc Process(Request) returns (bootstrap.SpreadMap); +} + +// Request message to communicate between DHT nodes +message Request { + int32 type = 1 [(gogoproto.customname) = "Type" , (gogoproto.nullable) = false, (gogoproto.customtype) = "NodeType"]; + bootstrap.NodeInfo info = 2 [(gogoproto.nullable) = false]; + uint32 TTL = 3; +} diff --git a/bootstrap/types.go b/bootstrap/types.go new file mode 100644 index 00000000..6fcf0ed2 --- /dev/null +++ b/bootstrap/types.go @@ -0,0 +1,100 @@ +package bootstrap + +import ( + "bytes" + "encoding/hex" + "strconv" + "strings" + + "github.com/golang/protobuf/proto" + "github.com/nspcc-dev/neofs-proto/object" +) + +type ( + // NodeStatus is a bitwise status field of the node. + NodeStatus uint64 +) + +const ( + storageFullMask = 0x1 + + optionCapacity = "/Capacity:" + optionPrice = "/Price:" +) + +var ( + _ proto.Message = (*NodeInfo)(nil) + _ proto.Message = (*SpreadMap)(nil) +) + +// Equals checks whether two NodeInfo has same address. +func (m NodeInfo) Equals(n1 NodeInfo) bool { + return m.Address == n1.Address && bytes.Equal(m.PubKey, n1.PubKey) +} + +// Full checks if node has enough space for storing users objects. +func (n NodeStatus) Full() bool { + return n&storageFullMask > 0 +} + +// SetFull changes state of node to indicate if node has enough space for storing users objects. +// If value is true - there's not enough space. +func (n *NodeStatus) SetFull(value bool) { + switch value { + case true: + *n |= NodeStatus(storageFullMask) + case false: + *n &= NodeStatus(^uint64(storageFullMask)) + } +} + +// Price returns price in 1e-8*GAS/Megabyte per month. +// User set price in GAS/Terabyte per month. +func (m NodeInfo) Price() uint64 { + for i := range m.Options { + if strings.HasPrefix(m.Options[i], optionPrice) { + n, err := strconv.ParseFloat(m.Options[i][len(optionPrice):], 64) + if err != nil { + return 0 + } + return uint64(n*1e8) / uint64(object.UnitsMB) // UnitsMB == megabytes in 1 terabyte + } + } + return 0 +} + +// Capacity returns node's capacity as reported by user. +func (m NodeInfo) Capacity() uint64 { + for i := range m.Options { + if strings.HasPrefix(m.Options[i], optionCapacity) { + n, err := strconv.ParseUint(m.Options[i][len(optionCapacity):], 10, 64) + if err != nil { + return 0 + } + return n + } + } + return 0 +} + +// String returns string representation of NodeInfo. +func (m NodeInfo) String() string { + return "(NodeInfo)<" + + "Address:" + m.Address + + ", " + + "PublicKey:" + hex.EncodeToString(m.PubKey) + + ", " + + "Options: [" + strings.Join(m.Options, ",") + "]>" +} + +// String returns string representation of SpreadMap. +func (m SpreadMap) String() string { + result := make([]string, 0, len(m.NetMap)) + for i := range m.NetMap { + result = append(result, m.NetMap[i].String()) + } + return "(SpreadMap)<" + + "Epoch: " + strconv.FormatUint(m.Epoch, 10) + + ", " + + "Netmap: [" + strings.Join(result, ",") + "]>" +} diff --git a/bootstrap/types.pb.go b/bootstrap/types.pb.go new file mode 100644 index 00000000..a90de05b Binary files /dev/null and b/bootstrap/types.pb.go differ diff --git a/bootstrap/types.proto b/bootstrap/types.proto new file mode 100644 index 00000000..4d6e458b --- /dev/null +++ b/bootstrap/types.proto @@ -0,0 +1,22 @@ +syntax = "proto3"; +package bootstrap; +option go_package = "github.com/nspcc-dev/neofs-proto/bootstrap"; + +import "github.com/gogo/protobuf/gogoproto/gogo.proto"; + +option (gogoproto.stable_marshaler_all) = true;; + +option (gogoproto.stringer_all) = false; +option (gogoproto.goproto_stringer_all) = false; + +message SpreadMap { + uint64 Epoch = 1; + repeated NodeInfo NetMap = 2 [(gogoproto.nullable) = false]; +} + +message NodeInfo { + string Address = 1 [(gogoproto.jsontag) = "address"]; + bytes PubKey = 2 [(gogoproto.jsontag) = "pubkey,omitempty"]; + repeated string Options = 3 [(gogoproto.jsontag) = "options,omitempty"]; + uint64 Status = 4 [(gogoproto.jsontag) = "status", (gogoproto.nullable) = false, (gogoproto.customtype) = "NodeStatus"]; +} diff --git a/chain/address.go b/chain/address.go new file mode 100644 index 00000000..e760d698 --- /dev/null +++ b/chain/address.go @@ -0,0 +1,185 @@ +package chain + +import ( + "bytes" + "crypto/ecdsa" + "crypto/sha256" + "encoding/hex" + + "github.com/mr-tron/base58" + crypto "github.com/nspcc-dev/neofs-crypto" + "github.com/nspcc-dev/neofs-proto/internal" + "github.com/pkg/errors" + "golang.org/x/crypto/ripemd160" +) + +// WalletAddress implements NEO address. +type WalletAddress [AddressLength]byte + +const ( + // AddressLength contains size of address, + // 0x17 byte (address version) + 20 bytes of ScriptHash + 4 bytes of checksum. + AddressLength = 25 + + // ScriptHashLength contains size of ScriptHash. + ScriptHashLength = 20 + + // ErrEmptyAddress is raised when empty Address is passed. + ErrEmptyAddress = internal.Error("empty address") + + // ErrAddressLength is raised when passed address has wrong size. + ErrAddressLength = internal.Error("wrong address length") +) + +func checksum(sign []byte) []byte { + hash := sha256.Sum256(sign) + hash = sha256.Sum256(hash[:]) + return hash[:4] +} + +// FetchPublicKeys tries to parse public keys from verification script. +func FetchPublicKeys(vs []byte) []*ecdsa.PublicKey { + var ( + count int + offset int + ln = len(vs) + result []*ecdsa.PublicKey + ) + + switch { + case ln < 1: // wrong data size + return nil + case vs[ln-1] == 0xac: // last byte is CHECKSIG + count = 1 + case vs[ln-1] == 0xae: // last byte is CHECKMULTISIG + // 2nd byte from the end indicates about PK's count + count = int(vs[ln-2] - 0x50) + // ignores CHECKMULTISIG + offset = 1 + default: // unknown type + return nil + } + + result = make([]*ecdsa.PublicKey, 0, count) + for i := 0; i < count; i++ { + // ignores PUSHBYTE33 and tries to parse + from, to := offset+1, offset+1+crypto.PublicKeyCompressedSize + + // when passed VerificationScript has wrong size + if len(vs) < to { + return nil + } + + key := crypto.UnmarshalPublicKey(vs[from:to]) + // when wrong public key is passed + if key == nil { + return nil + } + result = append(result, key) + + offset += 1 + crypto.PublicKeyCompressedSize + } + return result +} + +// VerificationScript returns VerificationScript composed from public keys. +func VerificationScript(pubs ...*ecdsa.PublicKey) []byte { + var ( + pre []byte + suf []byte + body []byte + offset int + lnPK = len(pubs) + ln = crypto.PublicKeyCompressedSize*lnPK + lnPK // 33 * count + count * 1 (PUSHBYTES33) + ) + + if len(pubs) > 1 { + pre = []byte{0x51} // one address + suf = []byte{byte(0x50 + lnPK), 0xae} // count of PK's + CHECKMULTISIG + } else { + suf = []byte{0xac} // CHECKSIG + } + + ln += len(pre) + len(suf) + + body = make([]byte, ln) + offset += copy(body, pre) + + for i := range pubs { + body[offset] = 0x21 + offset++ + offset += copy(body[offset:], crypto.MarshalPublicKey(pubs[i])) + } + + copy(body[offset:], suf) + + return body +} + +// KeysToAddress return NEO address composed from public keys. +func KeysToAddress(pubs ...*ecdsa.PublicKey) string { + if len(pubs) == 0 { + return "" + } + return Address(VerificationScript(pubs...)) +} + +// Address returns NEO address based on passed VerificationScript. +func Address(verificationScript []byte) string { + sign := [AddressLength]byte{0x17} + hash := sha256.Sum256(verificationScript) + ripe := ripemd160.New() + ripe.Write(hash[:]) + copy(sign[1:], ripe.Sum(nil)) + copy(sign[21:], checksum(sign[:21])) + return base58.Encode(sign[:]) +} + +// ReversedScriptHashToAddress parses script hash and returns valid NEO address. +func ReversedScriptHashToAddress(sc string) (addr string, err error) { + var data []byte + if data, err = DecodeScriptHash(sc); err != nil { + return + } + sign := [AddressLength]byte{0x17} + copy(sign[1:], data) + copy(sign[1+ScriptHashLength:], checksum(sign[:1+ScriptHashLength])) + return base58.Encode(sign[:]), nil +} + +// IsAddress checks that passed NEO Address is valid. +func IsAddress(s string) error { + if s == "" { + return ErrEmptyAddress + } else if addr, err := base58.Decode(s); err != nil { + return errors.Wrap(err, "base58 decode") + } else if ln := len(addr); ln != AddressLength { + return errors.Wrapf(ErrAddressLength, "length %d != %d", AddressLength, ln) + } else if sum := checksum(addr[:21]); !bytes.Equal(addr[21:], sum) { + return errors.Errorf("wrong checksum %0x != %0x", + addr[21:], sum) + } + + return nil +} + +// ReverseBytes returns reversed []byte of given. +func ReverseBytes(data []byte) []byte { + for i, j := 0, len(data)-1; i < j; i, j = i+1, j-1 { + data[i], data[j] = data[j], data[i] + } + return data +} + +// DecodeScriptHash parses script hash into slice of bytes. +func DecodeScriptHash(s string) ([]byte, error) { + if s == "" { + return nil, ErrEmptyAddress + } else if addr, err := hex.DecodeString(s); err != nil { + return nil, errors.Wrap(err, "hex decode") + } else if ln := len(addr); ln != ScriptHashLength { + return nil, errors.Wrapf(ErrAddressLength, "length %d != %d", ScriptHashLength, ln) + } else { + return addr, nil + } +} diff --git a/chain/address_test.go b/chain/address_test.go new file mode 100644 index 00000000..f83b1ddf --- /dev/null +++ b/chain/address_test.go @@ -0,0 +1,292 @@ +package chain + +import ( + "crypto/ecdsa" + "encoding/hex" + "testing" + + crypto "github.com/nspcc-dev/neofs-crypto" + "github.com/nspcc-dev/neofs-crypto/test" + "github.com/stretchr/testify/require" +) + +func TestAddress(t *testing.T) { + var ( + multiSigVerificationScript = "512103c02a93134f98d9c78ec54b1b1f97fc64cd81360f53a293f41e4ad54aac3c57172103fea219d4ccfd7641cebbb2439740bb4bd7c4730c1abd6ca1dc44386533816df952ae" + multiSigAddress = "ANbvKqa2SfgTUkq43NRUhCiyxPrpUPn7S3" + + normalVerificationScript = "2102a33413277a319cc6fd4c54a2feb9032eba668ec587f307e319dc48733087fa61ac" + normalAddress = "AcraNnCuPKnUYtPYyrACRCVJhLpvskbfhu" + ) + + t.Run("check multi-sig address", func(t *testing.T) { + data, err := hex.DecodeString(multiSigVerificationScript) + require.NoError(t, err) + require.Equal(t, multiSigAddress, Address(data)) + }) + + t.Run("check normal address", func(t *testing.T) { + data, err := hex.DecodeString(normalVerificationScript) + require.NoError(t, err) + require.Equal(t, normalAddress, Address(data)) + }) +} + +func TestVerificationScript(t *testing.T) { + t.Run("check normal", func(t *testing.T) { + pkString := "02a33413277a319cc6fd4c54a2feb9032eba668ec587f307e319dc48733087fa61" + + pkBytes, err := hex.DecodeString(pkString) + require.NoError(t, err) + + pk := crypto.UnmarshalPublicKey(pkBytes) + + expect, err := hex.DecodeString( + "21" + pkString + // PUSHBYTES33 + "ac", // CHECKSIG + ) + + require.Equal(t, expect, VerificationScript(pk)) + }) + + t.Run("check multisig", func(t *testing.T) { + pk1String := "03c02a93134f98d9c78ec54b1b1f97fc64cd81360f53a293f41e4ad54aac3c5717" + pk2String := "03fea219d4ccfd7641cebbb2439740bb4bd7c4730c1abd6ca1dc44386533816df9" + + pk1Bytes, err := hex.DecodeString(pk1String) + require.NoError(t, err) + + pk1 := crypto.UnmarshalPublicKey(pk1Bytes) + + pk2Bytes, err := hex.DecodeString(pk2String) + require.NoError(t, err) + + pk2 := crypto.UnmarshalPublicKey(pk2Bytes) + + expect, err := hex.DecodeString( + "51" + // one address + "21" + pk1String + // PUSHBYTES33 + "21" + pk2String + // PUSHBYTES33 + "52" + // 2 PublicKeys + "ae", // CHECKMULTISIG + ) + + require.Equal(t, expect, VerificationScript(pk1, pk2)) + }) +} + +func TestKeysToAddress(t *testing.T) { + t.Run("check normal", func(t *testing.T) { + pkString := "02a33413277a319cc6fd4c54a2feb9032eba668ec587f307e319dc48733087fa61" + + pkBytes, err := hex.DecodeString(pkString) + require.NoError(t, err) + + pk := crypto.UnmarshalPublicKey(pkBytes) + + expect := "AcraNnCuPKnUYtPYyrACRCVJhLpvskbfhu" + + actual := KeysToAddress(pk) + require.Equal(t, expect, actual) + require.NoError(t, IsAddress(actual)) + }) + + t.Run("check multisig", func(t *testing.T) { + pk1String := "03c02a93134f98d9c78ec54b1b1f97fc64cd81360f53a293f41e4ad54aac3c5717" + pk2String := "03fea219d4ccfd7641cebbb2439740bb4bd7c4730c1abd6ca1dc44386533816df9" + + pk1Bytes, err := hex.DecodeString(pk1String) + require.NoError(t, err) + + pk1 := crypto.UnmarshalPublicKey(pk1Bytes) + + pk2Bytes, err := hex.DecodeString(pk2String) + require.NoError(t, err) + + pk2 := crypto.UnmarshalPublicKey(pk2Bytes) + + expect := "ANbvKqa2SfgTUkq43NRUhCiyxPrpUPn7S3" + actual := KeysToAddress(pk1, pk2) + require.Equal(t, expect, actual) + require.NoError(t, IsAddress(actual)) + }) +} + +func TestFetchPublicKeys(t *testing.T) { + var ( + multiSigVerificationScript = "512103c02a93134f98d9c78ec54b1b1f97fc64cd81360f53a293f41e4ad54aac3c57172103fea219d4ccfd7641cebbb2439740bb4bd7c4730c1abd6ca1dc44386533816df952ae" + normalVerificationScript = "2102a33413277a319cc6fd4c54a2feb9032eba668ec587f307e319dc48733087fa61ac" + + pk1String = "03c02a93134f98d9c78ec54b1b1f97fc64cd81360f53a293f41e4ad54aac3c5717" + pk2String = "03fea219d4ccfd7641cebbb2439740bb4bd7c4730c1abd6ca1dc44386533816df9" + pk3String = "02a33413277a319cc6fd4c54a2feb9032eba668ec587f307e319dc48733087fa61" + ) + + t.Run("shouls not fail", func(t *testing.T) { + wrongVS, err := hex.DecodeString(multiSigVerificationScript) + require.NoError(t, err) + + wrongVS[len(wrongVS)-1] = 0x1 + + wrongPK, err := hex.DecodeString(multiSigVerificationScript) + require.NoError(t, err) + wrongPK[2] = 0x1 + + var testCases = []struct { + name string + value []byte + }{ + {name: "empty VerificationScript"}, + { + name: "wrong size VerificationScript", + value: []byte{0x1}, + }, + { + name: "wrong VerificationScript type", + value: wrongVS, + }, + { + name: "wrong public key in VerificationScript", + value: wrongPK, + }, + } + + for i := range testCases { + tt := testCases[i] + t.Run(tt.name, func(t *testing.T) { + var keys []*ecdsa.PublicKey + require.NotPanics(t, func() { + keys = FetchPublicKeys(tt.value) + }) + require.Nil(t, keys) + }) + } + }) + + t.Run("check multi-sig address", func(t *testing.T) { + data, err := hex.DecodeString(multiSigVerificationScript) + require.NoError(t, err) + + pk1Bytes, err := hex.DecodeString(pk1String) + require.NoError(t, err) + + pk2Bytes, err := hex.DecodeString(pk2String) + require.NoError(t, err) + + pk1 := crypto.UnmarshalPublicKey(pk1Bytes) + pk2 := crypto.UnmarshalPublicKey(pk2Bytes) + + keys := FetchPublicKeys(data) + require.Len(t, keys, 2) + require.Equal(t, keys[0], pk1) + require.Equal(t, keys[1], pk2) + }) + + t.Run("check normal address", func(t *testing.T) { + data, err := hex.DecodeString(normalVerificationScript) + require.NoError(t, err) + + pkBytes, err := hex.DecodeString(pk3String) + require.NoError(t, err) + + pk := crypto.UnmarshalPublicKey(pkBytes) + + keys := FetchPublicKeys(data) + require.Len(t, keys, 1) + require.Equal(t, keys[0], pk) + }) + + t.Run("generate 10 keys VerificationScript and try parse it", func(t *testing.T) { + var ( + count = 10 + expect = make([]*ecdsa.PublicKey, 0, count) + ) + + for i := 0; i < count; i++ { + key := test.DecodeKey(i) + expect = append(expect, &key.PublicKey) + } + + vs := VerificationScript(expect...) + + actual := FetchPublicKeys(vs) + require.Equal(t, expect, actual) + }) +} + +func TestReversedScriptHashToAddress(t *testing.T) { + var testCases = []struct { + name string + value string + expect string + }{ + { + name: "first", + expect: "APfiG5imQgn8dzTTfaDfqHnxo3QDUkF69A", + value: "5696acd07f0927fd5f01946828638c9e2c90c5dc", + }, + + { + name: "second", + expect: "AK2nJJpJr6o664CWJKi1QRXjqeic2zRp8y", + value: "23ba2703c53263e8d6e522dc32203339dcd8eee9", + }, + } + + for i := range testCases { + tt := testCases[i] + t.Run(tt.name, func(t *testing.T) { + actual, err := ReversedScriptHashToAddress(tt.value) + require.NoError(t, err) + require.Equal(t, tt.expect, actual) + require.NoError(t, IsAddress(actual)) + }) + } +} + +func TestReverseBytes(t *testing.T) { + var testCases = []struct { + name string + value []byte + expect []byte + }{ + {name: "empty"}, + { + name: "single byte", + expect: []byte{0x1}, + value: []byte{0x1}, + }, + + { + name: "two bytes", + expect: []byte{0x2, 0x1}, + value: []byte{0x1, 0x2}, + }, + + { + name: "three bytes", + expect: []byte{0x3, 0x2, 0x1}, + value: []byte{0x1, 0x2, 0x3}, + }, + + { + name: "five bytes", + expect: []byte{0x5, 0x4, 0x3, 0x2, 0x1}, + value: []byte{0x1, 0x2, 0x3, 0x4, 0x5}, + }, + + { + name: "eight bytes", + expect: []byte{0x8, 0x7, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1}, + value: []byte{0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8}, + }, + } + + for i := range testCases { + tt := testCases[i] + t.Run(tt.name, func(t *testing.T) { + actual := ReverseBytes(tt.value) + require.Equal(t, tt.expect, actual) + }) + } +} diff --git a/container/service.go b/container/service.go new file mode 100644 index 00000000..527377a7 --- /dev/null +++ b/container/service.go @@ -0,0 +1,68 @@ +package container + +import ( + "bytes" + "encoding/binary" + + "github.com/nspcc-dev/neofs-proto/refs" + "github.com/pkg/errors" +) + +type ( + // CID type alias. + CID = refs.CID + // UUID type alias. + UUID = refs.UUID + // OwnerID type alias. + OwnerID = refs.OwnerID + // OwnerID type alias. + MessageID = refs.MessageID +) + +// SetTTL sets ttl to GetRequest to satisfy TTLRequest interface. +func (m *GetRequest) SetTTL(v uint32) { m.TTL = v } + +// SetTTL sets ttl to PutRequest to satisfy TTLRequest interface. +func (m *PutRequest) SetTTL(v uint32) { m.TTL = v } + +// SetTTL sets ttl to ListRequest to satisfy TTLRequest interface. +func (m *ListRequest) SetTTL(v uint32) { m.TTL = v } + +// SetTTL sets ttl to DeleteRequest to satisfy TTLRequest interface. +func (m *DeleteRequest) SetTTL(v uint32) { m.TTL = v } + +// SetSignature sets signature to PutRequest to satisfy SignedRequest interface. +func (m *PutRequest) SetSignature(v []byte) { m.Signature = v } + +// SetSignature sets signature to DeleteRequest to satisfy SignedRequest interface. +func (m *DeleteRequest) SetSignature(v []byte) { m.Signature = v } + +// PrepareData prepares bytes representation of PutRequest to satisfy SignedRequest interface. +func (m *PutRequest) PrepareData() ([]byte, error) { + var ( + err error + buf = new(bytes.Buffer) + capBytes = make([]byte, 8) + ) + + binary.BigEndian.PutUint64(capBytes, m.Capacity) + + if _, err = buf.Write(m.MessageID.Bytes()); err != nil { + return nil, errors.Wrap(err, "could not write message id") + } else if _, err = buf.Write(capBytes); err != nil { + return nil, errors.Wrap(err, "could not write capacity") + } else if _, err = buf.Write(m.OwnerID.Bytes()); err != nil { + return nil, errors.Wrap(err, "could not write pub") + } else if data, err := m.Rules.Marshal(); err != nil { + return nil, errors.Wrap(err, "could not marshal placement") + } else if _, err = buf.Write(data); err != nil { + return nil, errors.Wrap(err, "could not write placement") + } + + return buf.Bytes(), nil +} + +// PrepareData prepares bytes representation of DeleteRequest to satisfy SignedRequest interface. +func (m *DeleteRequest) PrepareData() ([]byte, error) { + return m.CID.Bytes(), nil +} diff --git a/container/service.pb.go b/container/service.pb.go new file mode 100644 index 00000000..bc2e8315 Binary files /dev/null and b/container/service.pb.go differ diff --git a/container/service.proto b/container/service.proto new file mode 100644 index 00000000..a3b72ca8 --- /dev/null +++ b/container/service.proto @@ -0,0 +1,68 @@ +syntax = "proto3"; +package container; +option go_package = "github.com/nspcc-dev/neofs-proto/container"; + +import "container/types.proto"; +import "github.com/nspcc-dev/netmap/selector.proto"; +import "github.com/gogo/protobuf/gogoproto/gogo.proto"; + +option (gogoproto.stable_marshaler_all) = true; + +service Service { + // Create container + rpc Put(PutRequest) returns (PutResponse); + + // Delete container ... discuss implementation later + rpc Delete(DeleteRequest) returns (DeleteResponse); + + // Get container + rpc Get(GetRequest) returns (GetResponse); + + rpc List(ListRequest) returns (ListResponse); +} + +// NewRequest message to create new container +message PutRequest { + bytes MessageID = 1 [(gogoproto.customtype) = "MessageID", (gogoproto.nullable) = false]; + uint64 Capacity = 2; // not actual size in megabytes, but probability of storage availability + bytes OwnerID = 3 [(gogoproto.customtype) = "OwnerID", (gogoproto.nullable) = false]; + netmap.PlacementRule rules = 4 [(gogoproto.nullable) = false]; + bytes Signature = 5; + uint32 TTL = 6; +} + +// PutResponse message to respond about container uuid +message PutResponse { + bytes CID = 1 [(gogoproto.customtype) = "CID", (gogoproto.nullable) = false]; +} + +message DeleteRequest { + bytes CID = 1 [(gogoproto.customtype) = "CID", (gogoproto.nullable) = false]; + uint32 TTL = 2; + bytes Signature = 3; +} + +message DeleteResponse { } + + +// GetRequest message to fetch container placement rules +message GetRequest { + bytes CID = 1 [(gogoproto.customtype) = "CID", (gogoproto.nullable) = false]; + uint32 TTL = 2; +} + +// GetResponse message with container structure +message GetResponse { + container.Container Container = 1; +} + +// ListRequest message to list containers for user +message ListRequest { + bytes OwnerID = 1 [(gogoproto.customtype) = "OwnerID", (gogoproto.nullable) = false]; + uint32 TTL = 2; +} + +// ListResponse message to respond about all user containers +message ListResponse { + repeated bytes CID = 1 [(gogoproto.customtype) = "CID", (gogoproto.nullable) = false]; +} diff --git a/container/types.go b/container/types.go new file mode 100644 index 00000000..1ffcafe6 --- /dev/null +++ b/container/types.go @@ -0,0 +1,94 @@ +package container + +import ( + "bytes" + + "github.com/google/uuid" + "github.com/nspcc-dev/neofs-crypto/test" + "github.com/nspcc-dev/neofs-proto/internal" + "github.com/nspcc-dev/neofs-proto/refs" + "github.com/nspcc-dev/netmap" + "github.com/pkg/errors" +) + +var ( + _ internal.Custom = (*Container)(nil) + + emptySalt = (UUID{}).Bytes() + emptyOwner = (OwnerID{}).Bytes() +) + +// New creates new user container based on capacity, OwnerID and PlacementRules. +func New(cap uint64, owner OwnerID, rules netmap.PlacementRule) (*Container, error) { + if bytes.Equal(owner[:], emptyOwner) { + return nil, refs.ErrEmptyOwner + } else if cap == 0 { + return nil, refs.ErrEmptyCapacity + } + + salt, err := uuid.NewRandom() + if err != nil { + return nil, errors.Wrap(err, "could not create salt") + } + + return &Container{ + OwnerID: owner, + Salt: UUID(salt), + Capacity: cap, + Rules: rules, + }, nil +} + +// Bytes returns bytes representation of Container. +func (m *Container) Bytes() []byte { + data, err := m.Marshal() + if err != nil { + return nil + } + + return data +} + +// ID returns generated ContainerID based on Container (data). +func (m *Container) ID() (CID, error) { + if m.Empty() { + return CID{}, refs.ErrEmptyContainer + } + data, err := m.Marshal() + if err != nil { + return CID{}, err + } + + return refs.CIDForBytes(data), nil +} + +// Empty checks that container is empty. +func (m *Container) Empty() bool { + return m.Capacity == 0 || bytes.Equal(m.Salt.Bytes(), emptySalt) || bytes.Equal(m.OwnerID.Bytes(), emptyOwner) +} + +// -- Test container definition -- // +// NewTestContainer returns test container. +// +// WARNING: DON'T USE THIS OUTSIDE TESTS. +func NewTestContainer() (*Container, error) { + key := test.DecodeKey(0) + owner, err := refs.NewOwnerID(&key.PublicKey) + if err != nil { + return nil, err + } + return New(100, owner, netmap.PlacementRule{ + ReplFactor: 2, + SFGroups: []netmap.SFGroup{ + { + Selectors: []netmap.Select{ + {Key: "Country", Count: 1}, + {Key: netmap.NodesBucket, Count: 2}, + }, + Filters: []netmap.Filter{ + {Key: "Country", F: netmap.FilterIn("USA")}, + }, + }, + }, + }) +} diff --git a/container/types.pb.go b/container/types.pb.go new file mode 100644 index 00000000..8c4775cc Binary files /dev/null and b/container/types.pb.go differ diff --git a/container/types.proto b/container/types.proto new file mode 100644 index 00000000..b05001fb --- /dev/null +++ b/container/types.proto @@ -0,0 +1,16 @@ +syntax = "proto3"; +package container; +option go_package = "github.com/nspcc-dev/neofs-proto/container"; + +import "github.com/nspcc-dev/netmap/selector.proto"; +import "github.com/gogo/protobuf/gogoproto/gogo.proto"; + +option (gogoproto.stable_marshaler_all) = true; + +// The Container service definition. +message Container { + bytes OwnerID = 1 [(gogoproto.customtype) = "OwnerID", (gogoproto.nullable) = false]; + bytes Salt = 2 [(gogoproto.customtype) = "UUID", (gogoproto.nullable) = false]; + uint64 Capacity = 3; + netmap.PlacementRule Rules = 4 [(gogoproto.nullable) = false]; +} diff --git a/container/types_test.go b/container/types_test.go new file mode 100644 index 00000000..c7dbbf8f --- /dev/null +++ b/container/types_test.go @@ -0,0 +1,57 @@ +package container + +import ( + "testing" + + "github.com/gogo/protobuf/proto" + "github.com/nspcc-dev/neofs-crypto/test" + "github.com/nspcc-dev/neofs-proto/refs" + "github.com/nspcc-dev/netmap" + "github.com/stretchr/testify/require" +) + +func TestCID(t *testing.T) { + t.Run("check that marshal/unmarshal works like expected", func(t *testing.T) { + var ( + c2 Container + cid2 CID + key = test.DecodeKey(0) + ) + + rules := netmap.PlacementRule{ + ReplFactor: 2, + SFGroups: []netmap.SFGroup{ + { + Selectors: []netmap.Select{ + {Key: "Country", Count: 1}, + {Key: netmap.NodesBucket, Count: 2}, + }, + Filters: []netmap.Filter{ + {Key: "Country", F: netmap.FilterIn("USA")}, + }, + }, + }, + } + + owner, err := refs.NewOwnerID(&key.PublicKey) + require.NoError(t, err) + + c1, err := New(10, owner, rules) + require.NoError(t, err) + + data, err := proto.Marshal(c1) + require.NoError(t, err) + + require.NoError(t, c2.Unmarshal(data)) + require.Equal(t, c1, &c2) + + cid1, err := c1.ID() + require.NoError(t, err) + + data, err = proto.Marshal(&cid1) + require.NoError(t, err) + require.NoError(t, cid2.Unmarshal(data)) + + require.Equal(t, cid1, cid2) + }) +} diff --git a/decimal/decimal.go b/decimal/decimal.go new file mode 100644 index 00000000..2ee00884 --- /dev/null +++ b/decimal/decimal.go @@ -0,0 +1,110 @@ +package decimal + +import ( + "math" + "strconv" + "strings" +) + +// GASPrecision contains precision for NEO Gas token. +const GASPrecision = 8 + +// Zero is empty Decimal value. +var Zero = &Decimal{} + +// New returns new Decimal (in satoshi). +func New(v int64) *Decimal { + return NewWithPrecision(v, GASPrecision) +} + +// NewGAS returns new Decimal * 1e8 (in GAS). +func NewGAS(v int64) *Decimal { + v *= int64(math.Pow10(GASPrecision)) + return NewWithPrecision(v, GASPrecision) +} + +// NewWithPrecision returns new Decimal with custom precision. +func NewWithPrecision(v int64, p uint32) *Decimal { + return &Decimal{Value: v, Precision: p} +} + +// ParseFloat return new Decimal parsed from float64 * 1e8 (in GAS). +func ParseFloat(v float64) *Decimal { + return new(Decimal).Parse(v, GASPrecision) +} + +// ParseFloatWithPrecision returns new Decimal parsed from float64 * 1^p. +func ParseFloatWithPrecision(v float64, p int) *Decimal { + return new(Decimal).Parse(v, p) +} + +// Copy returns copy of current Decimal. +func (m *Decimal) Copy() *Decimal { return &Decimal{Value: m.Value, Precision: m.Precision} } + +// Parse returns parsed Decimal from float64 * 1^p. +func (m *Decimal) Parse(v float64, p int) *Decimal { + m.Value = int64(v * math.Pow10(p)) + m.Precision = uint32(p) + return m +} + +// String returns string representation of Decimal. +func (m Decimal) String() string { + buf := new(strings.Builder) + val := m.Value + dec := int64(math.Pow10(int(m.Precision))) + if val < 0 { + buf.WriteRune('-') + val = -val + } + str := strconv.FormatInt(val/dec, 10) + buf.WriteString(str) + val %= dec + if val > 0 { + buf.WriteRune('.') + str = strconv.FormatInt(val, 10) + for i := len(str); i < int(m.Precision); i++ { + buf.WriteRune('0') + } + buf.WriteString(strings.TrimRight(str, "0")) + } + return buf.String() +} + +// Add returns d + m. +func (m Decimal) Add(d *Decimal) *Decimal { + precision := m.Precision + if precision < d.Precision { + precision = d.Precision + } + return &Decimal{ + Value: m.Value + d.Value, + Precision: precision, + } +} + +// Zero checks that Decimal is empty. +func (m Decimal) Zero() bool { return m.Value == 0 } + +// Equal checks that current Decimal is equal to passed Decimal. +func (m Decimal) Equal(v *Decimal) bool { return m.Value == v.Value && m.Precision == v.Precision } + +// GT checks that m > v. +func (m Decimal) GT(v *Decimal) bool { return m.Value > v.Value } + +// GTE checks that m >= v. +func (m Decimal) GTE(v *Decimal) bool { return m.Value >= v.Value } + +// LT checks that m < v. +func (m Decimal) LT(v *Decimal) bool { return m.Value < v.Value } + +// LTE checks that m <= v. +func (m Decimal) LTE(v *Decimal) bool { return m.Value <= v.Value } + +// Neg returns negative representation of current Decimal (m * -1). +func (m Decimal) Neg() *Decimal { + return &Decimal{ + Value: m.Value * -1, + Precision: m.Precision, + } +} diff --git a/decimal/decimal.pb.go b/decimal/decimal.pb.go new file mode 100644 index 00000000..e125af41 Binary files /dev/null and b/decimal/decimal.pb.go differ diff --git a/decimal/decimal.proto b/decimal/decimal.proto new file mode 100644 index 00000000..31bb9636 --- /dev/null +++ b/decimal/decimal.proto @@ -0,0 +1,14 @@ +syntax = "proto3"; +package decimal; +option go_package = "github.com/nspcc-dev/neofs-proto/decimal"; + +import "github.com/gogo/protobuf/gogoproto/gogo.proto"; + +option (gogoproto.stable_marshaler_all) = true; + +message Decimal { + option (gogoproto.goproto_stringer) = false; + + int64 Value = 1; + uint32 Precision = 2; +} diff --git a/decimal/decimal_test.go b/decimal/decimal_test.go new file mode 100644 index 00000000..c5ffef72 --- /dev/null +++ b/decimal/decimal_test.go @@ -0,0 +1,445 @@ +package decimal + +import ( + "testing" + + "github.com/stretchr/testify/require" +) + +func TestDecimal_Parse(t *testing.T) { + tests := []struct { + value float64 + name string + expect *Decimal + }{ + {name: "empty", expect: &Decimal{Precision: GASPrecision}}, + + { + value: 100, + name: "100 GAS", + expect: &Decimal{Value: 1e10, Precision: GASPrecision}, + }, + } + for i := range tests { + tt := tests[i] + t.Run(tt.name, func(t *testing.T) { + require.Equal(t, tt.expect, ParseFloat(tt.value)) + }) + } +} + +func TestDecimal_ParseWithPrecision(t *testing.T) { + type args struct { + v float64 + p int + } + tests := []struct { + args args + name string + expect *Decimal + }{ + {name: "empty", expect: &Decimal{}}, + + { + name: "empty precision", + expect: &Decimal{Value: 0, Precision: 0}, + }, + + { + name: "100 GAS", + args: args{100, GASPrecision}, + expect: &Decimal{Value: 1e10, Precision: GASPrecision}, + }, + } + for i := range tests { + tt := tests[i] + t.Run(tt.name, func(t *testing.T) { + require.Equal(t, tt.expect, + ParseFloatWithPrecision(tt.args.v, tt.args.p)) + }) + } +} + +func TestNew(t *testing.T) { + tests := []struct { + name string + val int64 + expect *Decimal + }{ + {name: "empty", expect: &Decimal{Value: 0, Precision: GASPrecision}}, + {name: "100 GAS", val: 1e10, expect: &Decimal{Value: 1e10, Precision: GASPrecision}}, + } + for i := range tests { + tt := tests[i] + t.Run(tt.name, func(t *testing.T) { + require.Equalf(t, tt.expect, New(tt.val), tt.name) + }) + } +} + +func TestNewGAS(t *testing.T) { + tests := []struct { + name string + val int64 + expect *Decimal + }{ + {name: "empty", expect: &Decimal{Value: 0, Precision: GASPrecision}}, + {name: "100 GAS", val: 100, expect: &Decimal{Value: 1e10, Precision: GASPrecision}}, + } + for i := range tests { + tt := tests[i] + t.Run(tt.name, func(t *testing.T) { + require.Equalf(t, tt.expect, NewGAS(tt.val), tt.name) + }) + } +} +func TestNewWithPrecision(t *testing.T) { + tests := []struct { + name string + val int64 + pre uint32 + expect *Decimal + }{ + {name: "empty", expect: &Decimal{}}, + {name: "100 GAS", val: 1e10, pre: GASPrecision, expect: &Decimal{Value: 1e10, Precision: GASPrecision}}, + } + for i := range tests { + tt := tests[i] + t.Run(tt.name, func(t *testing.T) { + require.Equalf(t, tt.expect, NewWithPrecision(tt.val, tt.pre), tt.name) + }) + } +} + +func TestDecimal_Neg(t *testing.T) { + tests := []struct { + name string + val int64 + expect *Decimal + }{ + {name: "empty", expect: &Decimal{Value: 0, Precision: GASPrecision}}, + {name: "100 GAS", val: 1e10, expect: &Decimal{Value: -1e10, Precision: GASPrecision}}, + } + for i := range tests { + tt := tests[i] + t.Run(tt.name, func(t *testing.T) { + require.NotPanicsf(t, func() { + require.Equalf(t, tt.expect, New(tt.val).Neg(), tt.name) + }, tt.name) + }) + } +} + +func TestDecimal_String(t *testing.T) { + tests := []struct { + name string + expect string + value *Decimal + }{ + {name: "empty", expect: "0", value: &Decimal{}}, + {name: "100 GAS", expect: "100", value: &Decimal{Value: 1e10, Precision: GASPrecision}}, + {name: "-100 GAS", expect: "-100", value: &Decimal{Value: -1e10, Precision: GASPrecision}}, + } + for i := range tests { + tt := tests[i] + t.Run(tt.name, func(t *testing.T) { + require.Equalf(t, tt.expect, tt.value.String(), tt.name) + }) + } +} + +const SomethingElsePrecision = 5 + +func TestDecimal_Add(t *testing.T) { + tests := []struct { + name string + expect *Decimal + values [2]*Decimal + }{ + {name: "empty", expect: &Decimal{}, values: [2]*Decimal{{}, {}}}, + { + name: "5 GAS + 2 GAS", + expect: &Decimal{Value: 7e8, Precision: GASPrecision}, + values: [2]*Decimal{ + {Value: 2e8, Precision: GASPrecision}, + {Value: 5e8, Precision: GASPrecision}, + }, + }, + { + name: "1e2 + 1e3", + expect: &Decimal{Value: 1.1e3, Precision: 3}, + values: [2]*Decimal{ + {Value: 1e2, Precision: 2}, + {Value: 1e3, Precision: 3}, + }, + }, + { + name: "5 GAS + 10 SomethingElse", + expect: &Decimal{Value: 5.01e8, Precision: GASPrecision}, + values: [2]*Decimal{ + {Value: 5e8, Precision: GASPrecision}, + {Value: 1e6, Precision: SomethingElsePrecision}, + }, + }, + } + for i := range tests { + tt := tests[i] + t.Run(tt.name, func(t *testing.T) { + require.NotPanicsf(t, func() { + { // A + B + one := tt.values[0] + two := tt.values[1] + require.Equalf(t, tt.expect, one.Add(two), tt.name) + t.Log(one.Add(two)) + } + + { // B + A + one := tt.values[0] + two := tt.values[1] + require.Equalf(t, tt.expect, two.Add(one), tt.name) + t.Log(two.Add(one)) + } + }, tt.name) + }) + } +} + +func TestDecimal_Copy(t *testing.T) { + tests := []struct { + name string + expect *Decimal + value *Decimal + }{ + {name: "zero", expect: Zero}, + { + name: "5 GAS", + expect: &Decimal{Value: 5e8, Precision: GASPrecision}, + }, + { + name: "100 GAS", + expect: &Decimal{Value: 1e10, Precision: GASPrecision}, + }, + } + for i := range tests { + tt := tests[i] + t.Run(tt.name, func(t *testing.T) { + require.NotPanicsf(t, func() { + require.Equal(t, tt.expect, tt.expect.Copy()) + }, tt.name) + }) + } +} + +func TestDecimal_Zero(t *testing.T) { + tests := []struct { + name string + expect bool + value *Decimal + }{ + {name: "zero", expect: true, value: Zero}, + { + name: "5 GAS", + expect: false, + value: &Decimal{Value: 5e8, Precision: GASPrecision}, + }, + { + name: "100 GAS", + expect: false, + value: &Decimal{Value: 1e10, Precision: GASPrecision}, + }, + } + for i := range tests { + tt := tests[i] + t.Run(tt.name, func(t *testing.T) { + require.NotPanicsf(t, func() { + require.Truef(t, tt.expect == tt.value.Zero(), tt.name) + }, tt.name) + }) + } +} + +func TestDecimal_Equal(t *testing.T) { + tests := []struct { + name string + expect bool + values [2]*Decimal + }{ + {name: "zero == zero", expect: true, values: [2]*Decimal{Zero, Zero}}, + { + name: "5 GAS != 2 GAS", + expect: false, + values: [2]*Decimal{ + {Value: 5e8, Precision: GASPrecision}, + {Value: 2e8, Precision: GASPrecision}, + }, + }, + { + name: "100 GAS == 100 GAS", + expect: true, + values: [2]*Decimal{ + {Value: 1e10, Precision: GASPrecision}, + {Value: 1e10, Precision: GASPrecision}, + }, + }, + } + for i := range tests { + tt := tests[i] + t.Run(tt.name, func(t *testing.T) { + require.NotPanicsf(t, func() { + require.Truef(t, tt.expect == (tt.values[0].Equal(tt.values[1])), tt.name) + }, tt.name) + }) + } +} + +func TestDecimal_GT(t *testing.T) { + tests := []struct { + name string + expect bool + values [2]*Decimal + }{ + {name: "two zeros", expect: false, values: [2]*Decimal{Zero, Zero}}, + { + name: "5 GAS > 2 GAS", + expect: true, + values: [2]*Decimal{ + {Value: 5e8, Precision: GASPrecision}, + {Value: 2e8, Precision: GASPrecision}, + }, + }, + { + name: "100 GAS !> 100 GAS", + expect: false, + values: [2]*Decimal{ + {Value: 1e10, Precision: GASPrecision}, + {Value: 1e10, Precision: GASPrecision}, + }, + }, + } + for i := range tests { + tt := tests[i] + t.Run(tt.name, func(t *testing.T) { + require.NotPanicsf(t, func() { + require.Truef(t, tt.expect == (tt.values[0].GT(tt.values[1])), tt.name) + }, tt.name) + }) + } +} + +func TestDecimal_GTE(t *testing.T) { + tests := []struct { + name string + expect bool + values [2]*Decimal + }{ + {name: "two zeros", expect: true, values: [2]*Decimal{Zero, Zero}}, + { + name: "5 GAS >= 2 GAS", + expect: true, + values: [2]*Decimal{ + {Value: 5e8, Precision: GASPrecision}, + {Value: 2e8, Precision: GASPrecision}, + }, + }, + { + name: "1 GAS !>= 100 GAS", + expect: false, + values: [2]*Decimal{ + {Value: 1e8, Precision: GASPrecision}, + {Value: 1e10, Precision: GASPrecision}, + }, + }, + } + for i := range tests { + tt := tests[i] + t.Run(tt.name, func(t *testing.T) { + require.NotPanicsf(t, func() { + require.Truef(t, tt.expect == (tt.values[0].GTE(tt.values[1])), tt.name) + }, tt.name) + }) + } +} + +func TestDecimal_LT(t *testing.T) { + tests := []struct { + name string + expect bool + values [2]*Decimal + }{ + {name: "two zeros", expect: false, values: [2]*Decimal{Zero, Zero}}, + { + name: "5 GAS !< 2 GAS", + expect: false, + values: [2]*Decimal{ + {Value: 5e8, Precision: GASPrecision}, + {Value: 2e8, Precision: GASPrecision}, + }, + }, + { + name: "1 GAS < 100 GAS", + expect: true, + values: [2]*Decimal{ + {Value: 1e8, Precision: GASPrecision}, + {Value: 1e10, Precision: GASPrecision}, + }, + }, + { + name: "100 GAS !< 100 GAS", + expect: false, + values: [2]*Decimal{ + {Value: 1e10, Precision: GASPrecision}, + {Value: 1e10, Precision: GASPrecision}, + }, + }, + } + for i := range tests { + tt := tests[i] + t.Run(tt.name, func(t *testing.T) { + require.NotPanicsf(t, func() { + require.Truef(t, tt.expect == (tt.values[0].LT(tt.values[1])), tt.name) + }, tt.name) + }) + } +} + +func TestDecimal_LTE(t *testing.T) { + tests := []struct { + name string + expect bool + values [2]*Decimal + }{ + {name: "two zeros", expect: true, values: [2]*Decimal{Zero, Zero}}, + { + name: "5 GAS <= 2 GAS", + expect: false, + values: [2]*Decimal{ + {Value: 5e8, Precision: GASPrecision}, + {Value: 2e8, Precision: GASPrecision}, + }, + }, + { + name: "1 GAS <= 100 GAS", + expect: true, + values: [2]*Decimal{ + {Value: 1e8, Precision: GASPrecision}, + {Value: 1e10, Precision: GASPrecision}, + }, + }, + { + name: "100 GAS !<= 1 GAS", + expect: false, + values: [2]*Decimal{ + {Value: 1e10, Precision: GASPrecision}, + {Value: 1e8, Precision: GASPrecision}, + }, + }, + } + for i := range tests { + tt := tests[i] + t.Run(tt.name, func(t *testing.T) { + require.NotPanicsf(t, func() { + require.Truef(t, tt.expect == (tt.values[0].LTE(tt.values[1])), tt.name) + }, tt.name) + }) + } +} diff --git a/go.mod b/go.mod new file mode 100644 index 00000000..46490042 --- /dev/null +++ b/go.mod @@ -0,0 +1,22 @@ +module github.com/nspcc-dev/neofs-proto + +go 1.13 + +require ( + code.cloudfoundry.org/bytefmt v0.0.0-20190819182555-854d396b647c + github.com/gogo/protobuf v1.3.1 + github.com/golang/protobuf v1.3.2 + github.com/google/uuid v1.1.1 + github.com/mr-tron/base58 v1.1.2 + github.com/nspcc-dev/neofs-crypto v0.2.1 + github.com/nspcc-dev/netmap v1.6.1 + github.com/nspcc-dev/tzhash v1.3.0 + github.com/onsi/ginkgo v1.10.2 // indirect + github.com/onsi/gomega v1.7.0 // indirect + github.com/pkg/errors v0.8.1 + github.com/prometheus/client_golang v1.2.1 + github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4 + github.com/stretchr/testify v1.4.0 + golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550 + google.golang.org/grpc v1.24.0 +) diff --git a/go.sum b/go.sum new file mode 100644 index 00000000..6b48f3f5 --- /dev/null +++ b/go.sum @@ -0,0 +1,165 @@ +cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +code.cloudfoundry.org/bytefmt 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v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw= +gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= +honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= diff --git a/hash/hash.go b/hash/hash.go new file mode 100644 index 00000000..36884431 --- /dev/null +++ b/hash/hash.go @@ -0,0 +1,98 @@ +package hash + +import ( + "bytes" + + "github.com/mr-tron/base58" + "github.com/nspcc-dev/neofs-proto/internal" + "github.com/nspcc-dev/tzhash/tz" + "github.com/pkg/errors" +) + +// HomomorphicHashSize contains size of HH. +const HomomorphicHashSize = 64 + +// Hash is implementation of HomomorphicHash. +type Hash [HomomorphicHashSize]byte + +// ErrWrongDataSize raised when wrong size of bytes is passed to unmarshal HH. +const ErrWrongDataSize = internal.Error("wrong data size") + +var ( + _ internal.Custom = (*Hash)(nil) + + emptyHH [HomomorphicHashSize]byte +) + +// Size returns size of Hash (HomomorphicHashSize). +func (h Hash) Size() int { return HomomorphicHashSize } + +// Empty checks that Hash is empty. +func (h Hash) Empty() bool { return bytes.Equal(h.Bytes(), emptyHH[:]) } + +// Reset sets current Hash to empty value. +func (h *Hash) Reset() { *h = Hash{} } + +// ProtoMessage method to satisfy proto.Message interface. +func (h Hash) ProtoMessage() {} + +// Bytes represents Hash as bytes. +func (h Hash) Bytes() []byte { + buf := make([]byte, HomomorphicHashSize) + copy(buf, h[:]) + return h[:] +} + +// Marshal returns bytes representation of Hash. +func (h Hash) Marshal() ([]byte, error) { return h.Bytes(), nil } + +// MarshalTo tries to marshal Hash into passed bytes and returns count of copied bytes. +func (h *Hash) MarshalTo(data []byte) (int, error) { return copy(data, h.Bytes()), nil } + +// Unmarshal tries to parse bytes into valid Hash. +func (h *Hash) Unmarshal(data []byte) error { + if ln := len(data); ln != HomomorphicHashSize { + return errors.Wrapf(ErrWrongDataSize, "expect=%d, actual=%d", HomomorphicHashSize, ln) + } + + copy((*h)[:], data) + return nil +} + +// String returns string representation of Hash. +func (h Hash) String() string { return base58.Encode(h[:]) } + +// Equal checks that current Hash is equal to passed Hash. +func (h Hash) Equal(hash Hash) bool { return h == hash } + +// Verify validates if current hash generated from passed data. +func (h Hash) Verify(data []byte) bool { return h.Equal(Sum(data)) } + +// Validate checks if combined hashes are equal to current Hash. +func (h Hash) Validate(hashes []Hash) bool { + var hashBytes = make([][]byte, 0, len(hashes)) + for i := range hashes { + hashBytes = append(hashBytes, hashes[i].Bytes()) + } + ok, err := tz.Validate(h.Bytes(), hashBytes) + return err == nil && ok +} + +// Sum returns Tillich-Zémor checksum of data. +func Sum(data []byte) Hash { return tz.Sum(data) } + +// Concat combines hashes based on homomorphic property. +func Concat(hashes []Hash) (Hash, error) { + var ( + hash Hash + h = make([][]byte, 0, len(hashes)) + ) + for i := range hashes { + h = append(h, hashes[i].Bytes()) + } + cat, err := tz.Concat(h) + if err != nil { + return hash, err + } + return hash, hash.Unmarshal(cat) +} diff --git a/hash/hash_test.go b/hash/hash_test.go new file mode 100644 index 00000000..b3ef7035 --- /dev/null +++ b/hash/hash_test.go @@ -0,0 +1,166 @@ +package hash + +import ( + "bytes" + "crypto/rand" + "testing" + + "github.com/pkg/errors" + "github.com/stretchr/testify/require" +) + +func Test_Sum(t *testing.T) { + var ( + data = []byte("Hello world") + sum = Sum(data) + hash = []byte{0, 0, 0, 0, 1, 79, 16, 173, 134, 90, 176, 77, 114, 165, 253, 114, 0, 0, 0, 0, 0, 148, + 172, 222, 98, 248, 15, 99, 205, 129, 66, 91, 0, 0, 0, 0, 0, 138, 173, 39, 228, 231, 239, 123, + 170, 96, 186, 61, 0, 0, 0, 0, 0, 90, 69, 237, 131, 90, 161, 73, 38, 164, 185, 55} + ) + + require.Equal(t, hash, sum.Bytes()) +} + +func Test_Validate(t *testing.T) { + var ( + data = []byte("Hello world") + hash = Sum(data) + pieces = splitData(data, 2) + ln = len(pieces) + hashes = make([]Hash, 0, ln) + ) + + for i := 0; i < ln; i++ { + hashes = append(hashes, Sum(pieces[i])) + } + + require.True(t, hash.Validate(hashes)) +} + +func Test_Concat(t *testing.T) { + var ( + data = []byte("Hello world") + hash = Sum(data) + pieces = splitData(data, 2) + ln = len(pieces) + hashes = make([]Hash, 0, ln) + ) + + for i := 0; i < ln; i++ { + hashes = append(hashes, Sum(pieces[i])) + } + + res, err := Concat(hashes) + require.NoError(t, err) + require.Equal(t, hash, res) +} + +func Test_HashChunks(t *testing.T) { + var ( + chars = []byte("+") + size = 1400 + data = bytes.Repeat(chars, size) + hash = Sum(data) + count = 150 + ) + + hashes, err := dataHashes(data, count) + require.NoError(t, err) + require.Len(t, hashes, count) + + require.True(t, hash.Validate(hashes)) + + // 100 / 150 = 0 + hashes, err = dataHashes(data[:100], count) + require.Error(t, err) + require.Nil(t, hashes) +} + +func TestXOR(t *testing.T) { + var ( + dl = 10 + data = make([]byte, dl) + ) + + _, err := rand.Read(data) + require.NoError(t, err) + + t.Run("XOR with salt", func(t *testing.T) { + res := SaltXOR(data, nil) + require.Equal(t, res, data) + }) + + t.Run("XOR with empty salt", func(t *testing.T) { + xorWithSalt(t, data, 0) + }) + + t.Run("XOR with salt same data size", func(t *testing.T) { + xorWithSalt(t, data, dl) + }) + + t.Run("XOR with salt shorter than data aliquot", func(t *testing.T) { + xorWithSalt(t, data, dl/2) + }) + + t.Run("XOR with salt shorter than data aliquant", func(t *testing.T) { + xorWithSalt(t, data, dl/3/+1) + }) + + t.Run("XOR with salt longer than data aliquot", func(t *testing.T) { + xorWithSalt(t, data, dl*2) + }) + + t.Run("XOR with salt longer than data aliquant", func(t *testing.T) { + xorWithSalt(t, data, dl*2-1) + }) +} + +func xorWithSalt(t *testing.T, data []byte, saltSize int) { + var ( + direct, reverse []byte + salt = make([]byte, saltSize) + ) + + _, err := rand.Read(salt) + require.NoError(t, err) + + direct = SaltXOR(data, salt) + require.Len(t, direct, len(data)) + + reverse = SaltXOR(direct, salt) + require.Len(t, reverse, len(data)) + + require.Equal(t, reverse, data) +} + +func splitData(buf []byte, lim int) [][]byte { + var piece []byte + pieces := make([][]byte, 0, len(buf)/lim+1) + for len(buf) >= lim { + piece, buf = buf[:lim], buf[lim:] + pieces = append(pieces, piece) + } + if len(buf) > 0 { + pieces = append(pieces, buf) + } + return pieces +} + +func dataHashes(data []byte, count int) ([]Hash, error) { + var ( + ln = len(data) + mis = ln / count + off = (count - 1) * mis + hashes = make([]Hash, 0, count) + ) + if mis == 0 { + return nil, errors.Errorf("could not split %d bytes to %d pieces", ln, count) + } + + pieces := splitData(data[:off], mis) + pieces = append(pieces, data[off:]) + for i := 0; i < count; i++ { + hashes = append(hashes, Sum(pieces[i])) + } + return hashes, nil +} diff --git a/hash/hashesslice.go b/hash/hashesslice.go new file mode 100644 index 00000000..83bf4c5b --- /dev/null +++ b/hash/hashesslice.go @@ -0,0 +1,20 @@ +package hash + +import ( + "bytes" +) + +// HashesSlice is a collection that satisfies sort.Interface and can be +// sorted by the routines in sort package. +type HashesSlice []Hash + +// -- HashesSlice -- an inner type to sort Objects +// Len is the number of elements in the collection. +func (hs HashesSlice) Len() int { return len(hs) } + +// Less reports whether the element with +// index i should be sorted before the element with index j. +func (hs HashesSlice) Less(i, j int) bool { return bytes.Compare(hs[i].Bytes(), hs[j].Bytes()) == -1 } + +// Swap swaps the elements with indexes i and j. +func (hs HashesSlice) Swap(i, j int) { hs[i], hs[j] = hs[j], hs[i] } diff --git a/hash/salt.go b/hash/salt.go new file mode 100644 index 00000000..5b6eeb0b --- /dev/null +++ b/hash/salt.go @@ -0,0 +1,17 @@ +package hash + +// SaltXOR xors bits of data with salt +// repeating salt if necessary. +func SaltXOR(data, salt []byte) (result []byte) { + result = make([]byte, len(data)) + ls := len(salt) + if ls == 0 { + copy(result, data) + return + } + + for i := range result { + result[i] = data[i] ^ salt[i%ls] + } + return +} diff --git a/internal/error.go b/internal/error.go new file mode 100644 index 00000000..7df16033 --- /dev/null +++ b/internal/error.go @@ -0,0 +1,7 @@ +package internal + +// Error is a custom error. +type Error string + +// Error is an implementation of error interface. +func (e Error) Error() string { return string(e) } diff --git a/internal/proto.go b/internal/proto.go new file mode 100644 index 00000000..951168b8 --- /dev/null +++ b/internal/proto.go @@ -0,0 +1,16 @@ +package internal + +import "github.com/gogo/protobuf/proto" + +// Custom contains methods to satisfy proto.Message +// including custom methods to satisfy protobuf for +// non-proto defined types. +type Custom interface { + Size() int + Empty() bool + Bytes() []byte + Marshal() ([]byte, error) + MarshalTo(data []byte) (int, error) + Unmarshal(data []byte) error + proto.Message +} diff --git a/object/doc.go b/object/doc.go new file mode 100644 index 00000000..d81495b0 --- /dev/null +++ b/object/doc.go @@ -0,0 +1,143 @@ +/* +Package object manages main storage structure in the system. All storage +operations are performed with the objects. During lifetime object might be +transformed into another object by cutting its payload or adding meta +information. All transformation may be reversed, therefore source object +will be able to restore. + +Object structure + +Object consists of Payload and Header. Payload is unlimited but storage nodes +may have a policy to store objects with a limited payload. In this case object +with large payload will be transformed into the chain of objects with small +payload. + +Headers are simple key-value fields that divided into two groups: system +headers and extended headers. System headers contain information about +protocol version, object id, payload length in bytes, owner id, container id +and object creation timestamp (both in epochs and unix time). All these fields +must be set up in the correct object. + + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- + | System Headers | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- + | Version : 1 | + | Payload Length : 21673465 | + | Object ID : 465208e2-ba4f-4f99-ad47-82a59f4192d4 | + | Owner ID : AShvoCbSZ7VfRiPkVb1tEcBLiJrcbts1tt | + | Container ID : FGobtRZA6sBZv2i9k4L7TiTtnuP6E788qa278xfj3Fxj | + | Created At : Epoch#10, 1573033162 | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- + | Extended Headers | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- + | User Header : , | + | Verification Header : , | + | Homomorphic Hash : 0x23d35a56ae... | + | Payload Checksum : 0x1bd34abs75... | + | Integrity Header :
, | + | Transformation : Payload Split | + | Link-parent : cae08935-b4ba-499a-bf6c-98276c1e6c0b | + | Link-next : c3b40fbf-3798-4b61-a189-2992b5fb5070 | + | Payload Checksum : 0x1f387a5c36... | + | Integrity Header :
, | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- + | Payload | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- + | 0xd1581963a342d231... | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- + +There are different kinds of extended headers. A correct object must contain +verification header, homomorphic hash header, payload checksum and +integrity header. The order of headers is matter. Let's look through all +these headers. + +Link header points to the connected objects. During object transformation, large +object might be transformed into the chain of smaller objects. One of these +objects drops payload and has several "Child" links. We call this object as +zero-object. Others will have "Parent" link to the zero-object, "Previous" +and "Next" links in the payload chain. + + [ Object ID:1 ] = > transformed + `- [ Zero-Object ID:1 ] + `- Link-child ID:2 + `- Link-child ID:3 + `- Link-child ID:4 + `- Payload [null] + `- [ Object ID:2 ] + `- Link-parent ID:1 + `- Link-next ID:3 + `- Payload [ 0x13ba... ] + `- [ Object ID:3 ] + `- Link-parent ID:1 + `- Link-previous ID:2 + `- Link-next ID:4 + `- Payload [ 0xcd34... ] + `- [ Object ID:4 ] + `- Link-parent ID:1 + `- Link-previous ID:3 + `- Payload [ 0xef86... ] + +Storage groups are also objects. They have "Storage Group" links to all +objects in the group. Links are set by nodes during transformations and, +in general, they should not be set by user manually. + +Redirect headers are not used yet, they will be implemented and described +later. + +User header is a key-value pair of string that can be defined by user. User +can use these headers as search attribute. You can store any meta information +about object there, e.g. object's nicename. + +Transformation header notifies that object was transformed by some pre-defined +way. This header sets up before object is transformed and all headers after +transformation must be located after transformation header. During reverse +transformation, all headers under transformation header will be cut out. + + +-+-+-+-+-+-+-+-+-+- +-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+ + | Payload checksum | | Payload checksum | | Payload checksum | + | Integrity header | => | Integrity header | + | Integrity header | + +-+-+-+-+-+-+-+-+-+- | Transformation | | Transformation | + | Large payload | | New Checksum | | New Checksum | + +-+-+-+-+-+-+-+-+-+- | New Integrity | | New Integrity | + +-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+ + | Small payload | | Small payload | + +-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+ + +For now, we use only one type of transformation: payload split transformation. +This header set up by node automatically. + +Tombstone header notifies that this object was deleted by user. Objects with +tombstone header do not have payload, but they still contain meta information +in the headers. This way we implement two-phase commit for object removal. +Storage nodes will eventually delete all tombstone objects. If you want to +delete object, you must create new object with the same object id, with +tombstone header, correct signatures and without payload. + +Verification header contains session information. To put the object in +the system user must create session. It is required because objects might +be transformed and therefore must be re-signed. To do that node creates +a pair of session public and private keys. Object owner delegates permission to +re-sign objects by signing session public key. This header contains session +public key and owner's signature of this key. You must specify this header +manually. + +Homomorphic hash header contains homomorphic hash of the source object. +Transformations do not affect this header. This header used by data audit and +set by node automatically. + +Payload checksum contains checksum of the actual object payload. All payload +transformation must set new payload checksum headers. This header set by node +automatically. + +Integrity header contains checksum of the header and signature of the +session key. This header must be last in the list of extended headers. +Checksum is calculated by marshaling all above headers, including system +headers. This header set by node automatically. + +Storage group header is presented in storage group objects. It contains +information for data audit: size of validated data, homomorphic has of this +data, storage group expiration time in epochs or unix time. + + +*/ +package object diff --git a/object/extensions.go b/object/extensions.go new file mode 100644 index 00000000..1d896833 --- /dev/null +++ b/object/extensions.go @@ -0,0 +1,84 @@ +package object + +import ( + "github.com/nspcc-dev/neofs-proto/hash" +) + +// IsLinking checks if object has children links to another objects. +// We have to check payload size because zero-object must have zero +// payload and non-zero payload length field in system header. +func (m Object) IsLinking() bool { + for i := range m.Headers { + switch v := m.Headers[i].Value.(type) { + case *Header_Link: + if v.Link.GetType() == Link_Child { + return m.SystemHeader.PayloadLength > 0 && len(m.Payload) == 0 + } + } + } + return false +} + +// VerificationHeader returns verification header if it is presented in extended headers. +func (m Object) VerificationHeader() (*VerificationHeader, error) { + _, vh := m.LastHeader(HeaderType(VerifyHdr)) + if vh == nil { + return nil, ErrHeaderNotFound + } + return vh.Value.(*Header_Verify).Verify, nil +} + +// SetVerificationHeader sets verification header in the object. +// It will replace existing verification header or add a new one. +func (m *Object) SetVerificationHeader(header *VerificationHeader) { + m.SetHeader(&Header{Value: &Header_Verify{Verify: header}}) +} + +// Links returns slice of ids of specified link type +func (m *Object) Links(t Link_Type) []ID { + var res []ID + for i := range m.Headers { + switch v := m.Headers[i].Value.(type) { + case *Header_Link: + if v.Link.GetType() == t { + res = append(res, v.Link.ID) + } + } + } + return res +} + +// Tombstone returns tombstone header if it is presented in extended headers. +func (m Object) Tombstone() *Tombstone { + _, h := m.LastHeader(HeaderType(TombstoneHdr)) + if h != nil { + return h.Value.(*Header_Tombstone).Tombstone + } + return nil +} + +// IsTombstone checks if object has tombstone header. +func (m Object) IsTombstone() bool { + n, _ := m.LastHeader(HeaderType(TombstoneHdr)) + return n != -1 +} + +// StorageGroup returns storage group structure if it is presented in extended headers. +func (m Object) StorageGroup() (*StorageGroup, error) { + _, sgHdr := m.LastHeader(HeaderType(StorageGroupHdr)) + if sgHdr == nil { + return nil, ErrHeaderNotFound + } + return sgHdr.Value.(*Header_StorageGroup).StorageGroup, nil +} + +// SetStorageGroup sets storage group header in the object. +// It will replace existing storage group header or add a new one. +func (m *Object) SetStorageGroup(sg *StorageGroup) { + m.SetHeader(&Header{Value: &Header_StorageGroup{StorageGroup: sg}}) +} + +// Empty checks if storage group has some data for validation. +func (m StorageGroup) Empty() bool { + return m.ValidationDataSize == 0 && m.ValidationHash.Equal(hash.Hash{}) +} diff --git a/object/service.go b/object/service.go new file mode 100644 index 00000000..098f9c31 --- /dev/null +++ b/object/service.go @@ -0,0 +1,215 @@ +package object + +import ( + "github.com/nspcc-dev/neofs-proto/hash" + "github.com/nspcc-dev/neofs-proto/internal" + "github.com/nspcc-dev/neofs-proto/refs" + "github.com/nspcc-dev/neofs-proto/service" + "github.com/nspcc-dev/neofs-proto/session" +) + +type ( + // ID is a type alias of object id. + ID = refs.ObjectID + + // CID is a type alias of container id. + CID = refs.CID + + // SGID is a type alias of storage group id. + SGID = refs.SGID + + // OwnerID is a type alias of owner id. + OwnerID = refs.OwnerID + + // Hash is a type alias of Homomorphic hash. + Hash = hash.Hash + + // Token is a type alias of session token. + Token = session.Token + + // Request defines object rpc requests. + // All object operations must have TTL, Epoch, Container ID and + // permission of usage previous network map. + Request interface { + service.TTLRequest + service.EpochRequest + + CID() CID + AllowPreviousNetMap() bool + } +) + +const ( + // UnitsB starts enum for amount of bytes. + UnitsB int64 = 1 << (10 * iota) + + // UnitsKB defines amount of bytes in one kilobyte. + UnitsKB + + // UnitsMB defines amount of bytes in one megabyte. + UnitsMB + + // UnitsGB defines amount of bytes in one gigabyte. + UnitsGB + + // UnitsTB defines amount of bytes in one terabyte. + UnitsTB +) + +const ( + // ErrNotFound is raised when object is not found in the system. + ErrNotFound = internal.Error("could not find object") + + // ErrHeaderExpected is raised when first message in protobuf stream does not contain user header. + ErrHeaderExpected = internal.Error("expected header as a first message in stream") + + // KeyStorageGroup is a key for a search object by storage group id. + KeyStorageGroup = "STORAGE_GROUP" + + // KeyNoChildren is a key for searching object that have no children links. + KeyNoChildren = "LEAF" + + // KeyParent is a key for searching object by id of parent object. + KeyParent = "PARENT" + + // KeyHasParent is a key for searching object that have parent link. + KeyHasParent = "HAS_PAR" + + // KeyTombstone is a key for searching object that have tombstone header. + KeyTombstone = "TOMBSTONE" + + // KeyChild is a key for searching object by id of child link. + KeyChild = "CHILD" + + // KeyPrev is a key for searching object by id of previous link. + KeyPrev = "PREV" + + // KeyNext is a key for searching object by id of next link. + KeyNext = "NEXT" + + // KeyID is a key for searching object by object id. + KeyID = "ID" + + // KeyCID is a key for searching object by container id. + KeyCID = "CID" + + // KeyOwnerID is a key for searching object by owner id. + KeyOwnerID = "OWNERID" + + // KeyRootObject is a key for searching object that are zero-object or do + // not have any children. + KeyRootObject = "ROOT_OBJECT" +) + +func checkIsNotFull(v interface{}) bool { + var obj *Object + + switch t := v.(type) { + case *GetResponse: + obj = t.GetObject() + case *PutRequest: + if h := t.GetHeader(); h != nil { + obj = h.Object + } + default: + panic("unknown type") + } + + return obj == nil || obj.SystemHeader.PayloadLength != uint64(len(obj.Payload)) && !obj.IsLinking() +} + +// NotFull checks if protobuf stream provided whole object for get operation. +func (m *GetResponse) NotFull() bool { return checkIsNotFull(m) } + +// NotFull checks if protobuf stream provided whole object for put operation. +func (m *PutRequest) NotFull() bool { return checkIsNotFull(m) } + +// GetTTL returns TTL value from object put request. +func (m *PutRequest) GetTTL() uint32 { return m.GetHeader().TTL } + +// GetEpoch returns epoch value from object put request. +func (m *PutRequest) GetEpoch() uint64 { return m.GetHeader().GetEpoch() } + +// SetTTL sets TTL value into object put request. +func (m *PutRequest) SetTTL(ttl uint32) { m.GetHeader().TTL = ttl } + +// SetTTL sets TTL value into object get request. +func (m *GetRequest) SetTTL(ttl uint32) { m.TTL = ttl } + +// SetTTL sets TTL value into object head request. +func (m *HeadRequest) SetTTL(ttl uint32) { m.TTL = ttl } + +// SetTTL sets TTL value into object search request. +func (m *SearchRequest) SetTTL(ttl uint32) { m.TTL = ttl } + +// SetTTL sets TTL value into object delete request. +func (m *DeleteRequest) SetTTL(ttl uint32) { m.TTL = ttl } + +// SetTTL sets TTL value into object get range request. +func (m *GetRangeRequest) SetTTL(ttl uint32) { m.TTL = ttl } + +// SetTTL sets TTL value into object get range hash request. +func (m *GetRangeHashRequest) SetTTL(ttl uint32) { m.TTL = ttl } + +// SetEpoch sets epoch value into object put request. +func (m *PutRequest) SetEpoch(v uint64) { m.GetHeader().Epoch = v } + +// SetEpoch sets epoch value into object get request. +func (m *GetRequest) SetEpoch(v uint64) { m.Epoch = v } + +// SetEpoch sets epoch value into object head request. +func (m *HeadRequest) SetEpoch(v uint64) { m.Epoch = v } + +// SetEpoch sets epoch value into object search request. +func (m *SearchRequest) SetEpoch(v uint64) { m.Epoch = v } + +// SetEpoch sets epoch value into object delete request. +func (m *DeleteRequest) SetEpoch(v uint64) { m.Epoch = v } + +// SetEpoch sets epoch value into object get range request. +func (m *GetRangeRequest) SetEpoch(v uint64) { m.Epoch = v } + +// SetEpoch sets epoch value into object get range hash request. +func (m *GetRangeHashRequest) SetEpoch(v uint64) { m.Epoch = v } + +// CID returns container id value from object put request. +func (m *PutRequest) CID() CID { return m.GetHeader().Object.SystemHeader.CID } + +// CID returns container id value from object get request. +func (m *GetRequest) CID() CID { return m.Address.CID } + +// CID returns container id value from object head request. +func (m *HeadRequest) CID() CID { return m.Address.CID } + +// CID returns container id value from object search request. +func (m *SearchRequest) CID() CID { return m.ContainerID } + +// CID returns container id value from object delete request. +func (m *DeleteRequest) CID() CID { return m.Address.CID } + +// CID returns container id value from object get range request. +func (m *GetRangeRequest) CID() CID { return m.Address.CID } + +// CID returns container id value from object get range hash request. +func (m *GetRangeHashRequest) CID() CID { return m.Address.CID } + +// AllowPreviousNetMap returns permission to use previous network map in object put request. +func (m *PutRequest) AllowPreviousNetMap() bool { return false } + +// AllowPreviousNetMap returns permission to use previous network map in object get request. +func (m *GetRequest) AllowPreviousNetMap() bool { return true } + +// AllowPreviousNetMap returns permission to use previous network map in object head request. +func (m *HeadRequest) AllowPreviousNetMap() bool { return true } + +// AllowPreviousNetMap returns permission to use previous network map in object search request. +func (m *SearchRequest) AllowPreviousNetMap() bool { return true } + +// AllowPreviousNetMap returns permission to use previous network map in object delete request. +func (m *DeleteRequest) AllowPreviousNetMap() bool { return false } + +// AllowPreviousNetMap returns permission to use previous network map in object get range request. +func (m *GetRangeRequest) AllowPreviousNetMap() bool { return false } + +// AllowPreviousNetMap returns permission to use previous network map in object get range hash request. +func (m *GetRangeHashRequest) AllowPreviousNetMap() bool { return false } diff --git a/object/service.pb.go b/object/service.pb.go new file mode 100644 index 00000000..aede5cda Binary files /dev/null and b/object/service.pb.go differ diff --git a/object/service.proto b/object/service.proto new file mode 100644 index 00000000..0a033838 --- /dev/null +++ b/object/service.proto @@ -0,0 +1,119 @@ +syntax = "proto3"; +package object; +option go_package = "github.com/nspcc-dev/neofs-proto/object"; + +import "refs/types.proto"; +import "object/types.proto"; +import "session/types.proto"; +import "github.com/gogo/protobuf/gogoproto/gogo.proto"; + +option (gogoproto.stable_marshaler_all) = true; + +service Service { + // Get the object from a container + rpc Get(GetRequest) returns (stream GetResponse); + + // Put the object into a container + rpc Put(stream PutRequest) returns (PutResponse); + + // Delete the object from a container + rpc Delete(DeleteRequest) returns (DeleteResponse); + + // Get MetaInfo + rpc Head(HeadRequest) returns (HeadResponse); + + // Search by MetaInfo + rpc Search(SearchRequest) returns (SearchResponse); + + // Get ranges of object payload + rpc GetRange(GetRangeRequest) returns (GetRangeResponse); + + // Get hashes of object ranges + rpc GetRangeHash(GetRangeHashRequest) returns (GetRangeHashResponse); +} + +message GetRequest { + uint64 Epoch = 1; + refs.Address Address = 2 [(gogoproto.nullable) = false]; + uint32 TTL = 3; +} + +message GetResponse { + oneof R { + Object object = 1; + bytes Chunk = 2; + } +} + +message PutRequest { + message PutHeader { + uint64 Epoch = 1; + Object Object = 2; + uint32 TTL = 3; + session.Token Token = 4; + } + + oneof R { + PutHeader Header = 1; + bytes Chunk = 2; + } +} + +message PutResponse { + refs.Address Address = 1 [(gogoproto.nullable) = false]; +} +message DeleteRequest { + uint64 Epoch = 1; + refs.Address Address = 2 [(gogoproto.nullable) = false]; + bytes OwnerID = 3 [(gogoproto.nullable) = false, (gogoproto.customtype) = "OwnerID"]; + uint32 TTL = 4; + session.Token Token = 5; +} +message DeleteResponse {} + +// HeadRequest.FullHeader == true, for fetch all headers +message HeadRequest { + uint64 Epoch = 1; + refs.Address Address = 2 [(gogoproto.nullable) = false, (gogoproto.customtype) = "Address"]; + bool FullHeaders = 3; + uint32 TTL = 4; +} +message HeadResponse { + Object Object = 1; +} + +message SearchRequest { + uint64 Epoch = 1; + uint32 Version = 2; + bytes ContainerID = 3 [(gogoproto.nullable) = false, (gogoproto.customtype) = "CID"]; + bytes Query = 4; + uint32 TTL = 5; +} + +message SearchResponse { + repeated refs.Address Addresses = 1 [(gogoproto.nullable) = false]; +} + +message GetRangeRequest { + uint64 Epoch = 1; + refs.Address Address = 2 [(gogoproto.nullable) = false]; + repeated Range Ranges = 3 [(gogoproto.nullable) = false]; + uint32 TTL = 4; +} + +message GetRangeResponse { + repeated bytes Fragments = 1; +} + +message GetRangeHashRequest { + uint64 Epoch = 1; + refs.Address Address = 2 [(gogoproto.nullable) = false]; + repeated Range Ranges = 3 [(gogoproto.nullable) = false]; + bytes Salt = 4; + uint32 TTL = 5; +} + +message GetRangeHashResponse { + repeated bytes Hashes = 1 [(gogoproto.customtype) = "Hash", (gogoproto.nullable) = false]; +} + diff --git a/object/sg.go b/object/sg.go new file mode 100644 index 00000000..1b48b3ee --- /dev/null +++ b/object/sg.go @@ -0,0 +1,66 @@ +package object + +import ( + "bytes" + "sort" +) + +// Here are defined getter functions for objects that contain storage group +// information. + +type ( + // IDList is a slice of object ids, that can be sorted. + IDList []ID + + // ZoneInfo provides validation info of storage group. + ZoneInfo struct { + Hash + Size uint64 + } + + // IdentificationInfo provides meta information about storage group. + IdentificationInfo struct { + SGID + CID + OwnerID + } +) + +// Len returns amount of object ids in IDList. +func (s IDList) Len() int { return len(s) } + +// Less returns byte comparision between IDList[i] and IDList[j]. +func (s IDList) Less(i, j int) bool { return bytes.Compare(s[i].Bytes(), s[j].Bytes()) == -1 } + +// Swap swaps element with i and j index in IDList. +func (s IDList) Swap(i, j int) { s[i], s[j] = s[j], s[i] } + +// Group returns slice of object ids that are part of a storage group. +func (m *Object) Group() []ID { + sgLinks := m.Links(Link_StorageGroup) + sort.Sort(IDList(sgLinks)) + return sgLinks +} + +// Zones returns validation zones of storage group. +func (m *Object) Zones() []ZoneInfo { + sgInfo, err := m.StorageGroup() + if err != nil { + return nil + } + return []ZoneInfo{ + { + Hash: sgInfo.ValidationHash, + Size: sgInfo.ValidationDataSize, + }, + } +} + +// IDInfo returns meta information about storage group. +func (m *Object) IDInfo() *IdentificationInfo { + return &IdentificationInfo{ + SGID: m.SystemHeader.ID, + CID: m.SystemHeader.CID, + OwnerID: m.SystemHeader.OwnerID, + } +} diff --git a/object/sg_test.go b/object/sg_test.go new file mode 100644 index 00000000..58e20427 --- /dev/null +++ b/object/sg_test.go @@ -0,0 +1,87 @@ +package object + +import ( + "math/rand" + "sort" + "testing" + + "github.com/nspcc-dev/neofs-proto/hash" + "github.com/stretchr/testify/require" +) + +func TestObject_StorageGroup(t *testing.T) { + t.Run("group method", func(t *testing.T) { + var linkCount byte = 100 + + obj := &Object{Headers: make([]Header, 0, linkCount)} + require.Empty(t, obj.Group()) + + idList := make([]ID, linkCount) + for i := byte(0); i < linkCount; i++ { + idList[i] = ID{i} + obj.Headers = append(obj.Headers, Header{ + Value: &Header_Link{Link: &Link{ + Type: Link_StorageGroup, + ID: idList[i], + }}, + }) + } + + rand.Shuffle(len(obj.Headers), func(i, j int) { obj.Headers[i], obj.Headers[j] = obj.Headers[j], obj.Headers[i] }) + sort.Sort(IDList(idList)) + require.Equal(t, idList, obj.Group()) + }) + t.Run("identification method", func(t *testing.T) { + oid, cid, owner := ID{1}, CID{2}, OwnerID{3} + obj := &Object{ + SystemHeader: SystemHeader{ + ID: oid, + OwnerID: owner, + CID: cid, + }, + } + + idInfo := obj.IDInfo() + require.Equal(t, oid, idInfo.SGID) + require.Equal(t, cid, idInfo.CID) + require.Equal(t, owner, idInfo.OwnerID) + }) + t.Run("zones method", func(t *testing.T) { + sgSize := uint64(100) + + d := make([]byte, sgSize) + _, err := rand.Read(d) + require.NoError(t, err) + sgHash := hash.Sum(d) + + obj := &Object{ + Headers: []Header{ + { + Value: &Header_StorageGroup{ + StorageGroup: &StorageGroup{ + ValidationDataSize: sgSize, + ValidationHash: sgHash, + }, + }, + }, + }, + } + + var ( + sumSize uint64 + zones = obj.Zones() + hashes = make([]Hash, len(zones)) + ) + + for i := range zones { + sumSize += zones[i].Size + hashes[i] = zones[i].Hash + } + + sumHash, err := hash.Concat(hashes) + require.NoError(t, err) + + require.Equal(t, sgSize, sumSize) + require.Equal(t, sgHash, sumHash) + }) +} diff --git a/object/types.go b/object/types.go new file mode 100644 index 00000000..f433b9c9 --- /dev/null +++ b/object/types.go @@ -0,0 +1,219 @@ +package object + +import ( + "bytes" + "context" + + "github.com/gogo/protobuf/proto" + "github.com/nspcc-dev/neofs-proto/internal" + "github.com/nspcc-dev/neofs-proto/refs" + "github.com/nspcc-dev/neofs-proto/session" +) + +type ( + // Pred defines a predicate function that can check if passed header + // satisfies predicate condition. It is used to find headers of + // specific type. + Pred = func(*Header) bool + + // Address is a type alias of object Address. + Address = refs.Address + + // VerificationHeader is a type alias of session's verification header. + VerificationHeader = session.VerificationHeader + + // PositionReader defines object reader that returns slice of bytes + // for specified object and data range. + PositionReader interface { + PRead(ctx context.Context, addr refs.Address, rng Range) ([]byte, error) + } + + headerType int +) + +const ( + // ErrVerifyPayload is raised when payload checksum cannot be verified. + ErrVerifyPayload = internal.Error("can't verify payload") + + // ErrVerifyHeader is raised when object integrity cannot be verified. + ErrVerifyHeader = internal.Error("can't verify header") + + // ErrHeaderNotFound is raised when requested header not found. + ErrHeaderNotFound = internal.Error("header not found") + + // ErrVerifySignature is raised when signature cannot be verified. + ErrVerifySignature = internal.Error("can't verify signature") +) + +const ( + _ headerType = iota + // LinkHdr is a link header type. + LinkHdr + // RedirectHdr is a redirect header type. + RedirectHdr + // UserHdr is a user defined header type. + UserHdr + // TransformHdr is a transformation header type. + TransformHdr + // TombstoneHdr is a tombstone header type. + TombstoneHdr + // VerifyHdr is a verification header type. + VerifyHdr + // HomoHashHdr is a homomorphic hash header type. + HomoHashHdr + // PayloadChecksumHdr is a payload checksum header type. + PayloadChecksumHdr + // IntegrityHdr is a integrity header type. + IntegrityHdr + // StorageGroupHdr is a storage group header type. + StorageGroupHdr +) + +var ( + _ internal.Custom = (*Object)(nil) + + emptyObject = new(Object).Bytes() +) + +// Bytes returns marshaled object in a binary format. +func (m Object) Bytes() []byte { data, _ := m.Marshal(); return data } + +// Empty checks if object does not contain any information. +func (m Object) Empty() bool { return bytes.Equal(m.Bytes(), emptyObject) } + +// LastHeader returns last header of the specified type. Type must be +// specified as a Pred function. +func (m Object) LastHeader(f Pred) (int, *Header) { + for i := len(m.Headers) - 1; i >= 0; i-- { + if f != nil && f(&m.Headers[i]) { + return i, &m.Headers[i] + } + } + return -1, nil +} + +// AddHeader adds passed header to the end of extended header list. +func (m *Object) AddHeader(h *Header) { + m.Headers = append(m.Headers, *h) +} + +// SetPayload sets payload field and payload length in the system header. +func (m *Object) SetPayload(payload []byte) { + m.Payload = payload + m.SystemHeader.PayloadLength = uint64(len(payload)) +} + +// SetHeader replaces existing extended header or adds new one to the end of +// extended header list. +func (m *Object) SetHeader(h *Header) { + // looking for the header of that type + for i := range m.Headers { + if m.Headers[i].typeOf(h.Value) { + // if we found one - set it with new value and return + m.Headers[i] = *h + return + } + } + // if we did not find one - add this header + m.AddHeader(h) +} + +func (m Header) typeOf(t isHeader_Value) (ok bool) { + switch t.(type) { + case *Header_Link: + _, ok = m.Value.(*Header_Link) + case *Header_Redirect: + _, ok = m.Value.(*Header_Redirect) + case *Header_UserHeader: + _, ok = m.Value.(*Header_UserHeader) + case *Header_Transform: + _, ok = m.Value.(*Header_Transform) + case *Header_Tombstone: + _, ok = m.Value.(*Header_Tombstone) + case *Header_Verify: + _, ok = m.Value.(*Header_Verify) + case *Header_HomoHash: + _, ok = m.Value.(*Header_HomoHash) + case *Header_PayloadChecksum: + _, ok = m.Value.(*Header_PayloadChecksum) + case *Header_Integrity: + _, ok = m.Value.(*Header_Integrity) + case *Header_StorageGroup: + _, ok = m.Value.(*Header_StorageGroup) + } + return +} + +// HeaderType returns predicate that check if extended header is a header +// of specified type. +func HeaderType(t headerType) Pred { + switch t { + case LinkHdr: + return func(h *Header) bool { _, ok := h.Value.(*Header_Link); return ok } + case RedirectHdr: + return func(h *Header) bool { _, ok := h.Value.(*Header_Redirect); return ok } + case UserHdr: + return func(h *Header) bool { _, ok := h.Value.(*Header_UserHeader); return ok } + case TransformHdr: + return func(h *Header) bool { _, ok := h.Value.(*Header_Transform); return ok } + case TombstoneHdr: + return func(h *Header) bool { _, ok := h.Value.(*Header_Tombstone); return ok } + case VerifyHdr: + return func(h *Header) bool { _, ok := h.Value.(*Header_Verify); return ok } + case HomoHashHdr: + return func(h *Header) bool { _, ok := h.Value.(*Header_HomoHash); return ok } + case PayloadChecksumHdr: + return func(h *Header) bool { _, ok := h.Value.(*Header_PayloadChecksum); return ok } + case IntegrityHdr: + return func(h *Header) bool { _, ok := h.Value.(*Header_Integrity); return ok } + case StorageGroupHdr: + return func(h *Header) bool { _, ok := h.Value.(*Header_StorageGroup); return ok } + default: + return nil + } +} + +// Copy creates full copy of the object. +func (m *Object) Copy() (obj *Object) { + obj = new(Object) + m.CopyTo(obj) + return +} + +// CopyTo creates fills passed object with the data from the current object. +// This function creates copies on every available data slice. +func (m *Object) CopyTo(o *Object) { + o.SystemHeader = m.SystemHeader + o.Headers = make([]Header, len(m.Headers)) + o.Payload = make([]byte, len(m.Payload)) + + for i := range m.Headers { + switch v := m.Headers[i].Value.(type) { + case *Header_Link: + link := *v.Link + o.Headers[i] = Header{ + Value: &Header_Link{ + Link: &link, + }, + } + case *Header_HomoHash: + o.Headers[i] = Header{ + Value: &Header_HomoHash{ + HomoHash: v.HomoHash, + }, + } + default: + o.Headers[i] = *proto.Clone(&m.Headers[i]).(*Header) + } + } + + copy(o.Payload, m.Payload) +} + +// Address returns object's address. +func (m Object) Address() *refs.Address { + return &refs.Address{ + ObjectID: m.SystemHeader.ID, + CID: m.SystemHeader.CID, + } +} diff --git a/object/types.pb.go b/object/types.pb.go new file mode 100644 index 00000000..99b6c90f Binary files /dev/null and b/object/types.pb.go differ diff --git a/object/types.proto b/object/types.proto new file mode 100644 index 00000000..a7cbd8c7 --- /dev/null +++ b/object/types.proto @@ -0,0 +1,107 @@ +syntax = "proto3"; +package object; +option go_package = "github.com/nspcc-dev/neofs-proto/object"; + +import "refs/types.proto"; +import "session/types.proto"; +import "github.com/gogo/protobuf/gogoproto/gogo.proto"; + +option (gogoproto.stable_marshaler_all) = true; + +message Range { + uint64 Offset = 1; + uint64 Length = 2; +} + +message UserHeader { + string Key = 1; + string Value = 2; +} + +message Header { + oneof Value { + Link Link = 1; + refs.Address Redirect = 2; + UserHeader UserHeader = 3; + Transform Transform = 4; + Tombstone Tombstone = 5; + // session-related info: session.VerificationHeader + session.VerificationHeader Verify = 6; + // integrity-related info + bytes HomoHash = 7 [(gogoproto.customtype) = "Hash"]; + bytes PayloadChecksum = 8; + IntegrityHeader Integrity = 9; + StorageGroup StorageGroup = 10; + } +} + +message Tombstone { + uint64 Epoch = 1; +} + +message SystemHeader { + uint64 Version = 1; + uint64 PayloadLength = 2; + + bytes ID = 3 [(gogoproto.customtype) = "ID", (gogoproto.nullable) = false]; + bytes OwnerID = 4 [(gogoproto.customtype) = "OwnerID", (gogoproto.nullable) = false]; + bytes CID = 5 [(gogoproto.customtype) = "CID", (gogoproto.nullable) = false]; + CreationPoint CreatedAt = 6 [(gogoproto.nullable) = false]; +} + +message CreationPoint { + int64 UnixTime = 1; + uint64 Epoch = 2; +} + +message IntegrityHeader { + bytes HeadersChecksum = 1; + bytes ChecksumSignature = 2; +} + +message Link { + enum Type { + Unknown = 0; + Parent = 1; + Previous = 2; + Next = 3; + Child = 4; + StorageGroup = 5; + } + Type type = 1; + bytes ID = 2 [(gogoproto.customtype) = "ID", (gogoproto.nullable) = false]; +} + +message Transform { + enum Type { + Unknown = 0; + Split = 1; + Sign = 2; + Mould = 3; + } + Type type = 1; +} + +message Object { + SystemHeader SystemHeader = 1 [(gogoproto.nullable) = false]; + repeated Header Headers = 2 [(gogoproto.nullable) = false]; + bytes Payload = 3; +} + +message StorageGroup { + uint64 ValidationDataSize = 1; + bytes ValidationHash = 2 [(gogoproto.customtype) = "Hash", (gogoproto.nullable) = false]; + + message Lifetime { + enum Unit { + Unlimited = 0; + NeoFSEpoch = 1; + UnixTime = 2; + } + + Unit unit = 1 [(gogoproto.customname) = "Unit"]; + int64 Value = 2; + } + + Lifetime lifetime = 3 [(gogoproto.customname) = "Lifetime"]; +} diff --git a/object/utils.go b/object/utils.go new file mode 100644 index 00000000..1799b24f --- /dev/null +++ b/object/utils.go @@ -0,0 +1,107 @@ +package object + +import ( + "io" + + "code.cloudfoundry.org/bytefmt" + "github.com/nspcc-dev/neofs-proto/session" + "github.com/pkg/errors" +) + +const maxGetPayloadSize = 3584 * 1024 // 3.5 MiB + +func splitBytes(data []byte, maxSize int) (result [][]byte) { + l := len(data) + if l == 0 { + return [][]byte{data} + } + for i := 0; i < l; i += maxSize { + last := i + maxSize + if last > l { + last = l + } + result = append(result, data[i:last]) + } + return +} + +// SendPutRequest prepares object and sends it in chunks through protobuf stream. +func SendPutRequest(s Service_PutClient, obj *Object, epoch uint64, ttl uint32) (*PutResponse, error) { + // TODO split must take into account size of the marshalled Object + chunks := splitBytes(obj.Payload, maxGetPayloadSize) + obj.Payload = chunks[0] + if err := s.Send(MakePutRequestHeader(obj, epoch, ttl, nil)); err != nil { + return nil, err + } + for i := range chunks[1:] { + if err := s.Send(MakePutRequestChunk(chunks[i+1])); err != nil { + return nil, err + } + } + resp, err := s.CloseAndRecv() + if err != nil && err != io.EOF { + return nil, err + } + return resp, nil +} + +// MakePutRequestHeader combines object, epoch, ttl and session token value +// into header of object put request. +func MakePutRequestHeader(obj *Object, epoch uint64, ttl uint32, token *session.Token) *PutRequest { + return &PutRequest{ + R: &PutRequest_Header{ + Header: &PutRequest_PutHeader{ + Epoch: epoch, + Object: obj, + TTL: ttl, + Token: token, + }, + }, + } +} + +// MakePutRequestChunk splits data into chunks that will be transferred +// in the protobuf stream. +func MakePutRequestChunk(chunk []byte) *PutRequest { + return &PutRequest{R: &PutRequest_Chunk{Chunk: chunk}} +} + +func errMaxSizeExceeded(size uint64) error { + return errors.Errorf("object payload size exceed: %s", bytefmt.ByteSize(size)) +} + +// ReceiveGetResponse receives object by chunks from the protobuf stream +// and combine it into single get response structure. +func ReceiveGetResponse(c Service_GetClient, maxSize uint64) (*GetResponse, error) { + res, err := c.Recv() + if err == io.EOF { + return res, err + } else if err != nil { + return nil, err + } + + obj := res.GetObject() + if obj == nil { + return nil, ErrHeaderExpected + } + + if obj.SystemHeader.PayloadLength > maxSize { + return nil, errMaxSizeExceeded(maxSize) + } + + if res.NotFull() { + payload := make([]byte, obj.SystemHeader.PayloadLength) + offset := copy(payload, obj.Payload) + + var r *GetResponse + for r, err = c.Recv(); err == nil; r, err = c.Recv() { + offset += copy(payload[offset:], r.GetChunk()) + } + if err != io.EOF { + return nil, err + } + obj.Payload = payload + } + + return res, nil +} diff --git a/object/verification.go b/object/verification.go new file mode 100644 index 00000000..761c04e2 --- /dev/null +++ b/object/verification.go @@ -0,0 +1,132 @@ +package object + +import ( + "bytes" + "crypto/ecdsa" + "crypto/sha256" + + crypto "github.com/nspcc-dev/neofs-crypto" + "github.com/pkg/errors" +) + +func (m Object) headersData(check bool) ([]byte, error) { + var bytebuf = new(bytes.Buffer) + + // fixme: we must marshal fields one by one without protobuf marshaling + // protobuf marshaling does not guarantee the same result + + if sysheader, err := m.SystemHeader.Marshal(); err != nil { + return nil, err + } else if _, err := bytebuf.Write(sysheader); err != nil { + return nil, err + } + + n, _ := m.LastHeader(HeaderType(IntegrityHdr)) + for i := range m.Headers { + if check && i == n { + // ignore last integrity header in order to check headers data + continue + } + + if header, err := m.Headers[i].Marshal(); err != nil { + return nil, err + } else if _, err := bytebuf.Write(header); err != nil { + return nil, err + } + } + return bytebuf.Bytes(), nil +} + +func (m Object) headersChecksum(check bool) ([]byte, error) { + data, err := m.headersData(check) + if err != nil { + return nil, err + } + checksum := sha256.Sum256(data) + return checksum[:], nil +} + +// PayloadChecksum calculates sha256 checksum of object payload. +func (m Object) PayloadChecksum() []byte { + checksum := sha256.Sum256(m.Payload) + return checksum[:] +} + +func (m Object) verifySignature(key []byte, ih *IntegrityHeader) error { + pk := crypto.UnmarshalPublicKey(key) + if crypto.Verify(pk, ih.HeadersChecksum, ih.ChecksumSignature) == nil { + return nil + } + return ErrVerifySignature +} + +// Verify performs local integrity check by finding verification header and +// integrity header. If header integrity is passed, function verifies +// checksum of the object payload. +func (m Object) Verify() error { + var ( + err error + checksum []byte + ) + // Prepare structures + _, vh := m.LastHeader(HeaderType(VerifyHdr)) + if vh == nil { + return ErrHeaderNotFound + } + verify := vh.Value.(*Header_Verify).Verify + + _, ih := m.LastHeader(HeaderType(IntegrityHdr)) + if ih == nil { + return ErrHeaderNotFound + } + integrity := ih.Value.(*Header_Integrity).Integrity + + // Verify signature + err = m.verifySignature(verify.PublicKey, integrity) + if err != nil { + return errors.Wrapf(err, "public key: %x", verify.PublicKey) + } + + // Verify checksum of header + checksum, err = m.headersChecksum(true) + if err != nil { + return err + } + if !bytes.Equal(integrity.HeadersChecksum, checksum) { + return ErrVerifyHeader + } + + // Verify checksum of payload + if m.SystemHeader.PayloadLength > 0 && !m.IsLinking() { + checksum = m.PayloadChecksum() + + _, ph := m.LastHeader(HeaderType(PayloadChecksumHdr)) + if ph == nil { + return ErrHeaderNotFound + } + if !bytes.Equal(ph.Value.(*Header_PayloadChecksum).PayloadChecksum, checksum) { + return ErrVerifyPayload + } + } + return nil +} + +// Sign creates new integrity header and adds it to the end of the list of +// extended headers. +func (m *Object) Sign(key *ecdsa.PrivateKey) error { + headerChecksum, err := m.headersChecksum(false) + if err != nil { + return err + } + headerChecksumSignature, err := crypto.Sign(key, headerChecksum) + if err != nil { + return err + } + m.AddHeader(&Header{Value: &Header_Integrity{ + Integrity: &IntegrityHeader{ + HeadersChecksum: headerChecksum, + ChecksumSignature: headerChecksumSignature, + }, + }}) + return nil +} diff --git a/object/verification_test.go b/object/verification_test.go new file mode 100644 index 00000000..f91e0518 --- /dev/null +++ b/object/verification_test.go @@ -0,0 +1,105 @@ +package object + +import ( + "testing" + + "github.com/google/uuid" + crypto "github.com/nspcc-dev/neofs-crypto" + "github.com/nspcc-dev/neofs-crypto/test" + "github.com/nspcc-dev/neofs-proto/container" + "github.com/nspcc-dev/neofs-proto/refs" + "github.com/nspcc-dev/neofs-proto/session" + "github.com/stretchr/testify/require" +) + +func TestObject_Verify(t *testing.T) { + key := test.DecodeKey(0) + sessionkey := test.DecodeKey(1) + + payload := make([]byte, 1024*1024) + + cnr, err := container.NewTestContainer() + require.NoError(t, err) + + cid, err := cnr.ID() + require.NoError(t, err) + + id, err := uuid.NewRandom() + uid := refs.UUID(id) + require.NoError(t, err) + + obj := &Object{ + SystemHeader: SystemHeader{ + ID: uid, + CID: cid, + OwnerID: refs.OwnerID([refs.OwnerIDSize]byte{}), + }, + Headers: []Header{ + { + Value: &Header_UserHeader{ + UserHeader: &UserHeader{ + Key: "Profession", + Value: "Developer", + }, + }, + }, + { + Value: &Header_UserHeader{ + UserHeader: &UserHeader{ + Key: "Language", + Value: "GO", + }, + }, + }, + }, + } + obj.SetPayload(payload) + obj.SetHeader(&Header{Value: &Header_PayloadChecksum{[]byte("incorrect checksum")}}) + + t.Run("error no integrity header", func(t *testing.T) { + err = obj.Verify() + require.EqualError(t, err, ErrHeaderNotFound.Error()) + }) + + badHeaderChecksum := []byte("incorrect checksum") + signature, err := crypto.Sign(sessionkey, badHeaderChecksum) + require.NoError(t, err) + ih := &IntegrityHeader{ + HeadersChecksum: badHeaderChecksum, + ChecksumSignature: signature, + } + obj.SetHeader(&Header{Value: &Header_Integrity{ih}}) + + t.Run("error no validation header", func(t *testing.T) { + err = obj.Verify() + require.EqualError(t, err, ErrHeaderNotFound.Error()) + }) + + dataPK := crypto.MarshalPublicKey(&sessionkey.PublicKey) + signature, err = crypto.Sign(key, dataPK) + vh := &session.VerificationHeader{ + PublicKey: dataPK, + KeySignature: signature, + } + obj.SetVerificationHeader(vh) + + t.Run("error invalid header checksum", func(t *testing.T) { + err = obj.Verify() + require.EqualError(t, err, ErrVerifyHeader.Error()) + }) + + require.NoError(t, obj.Sign(sessionkey)) + + t.Run("error invalid payload checksum", func(t *testing.T) { + err = obj.Verify() + require.EqualError(t, err, ErrVerifyPayload.Error()) + }) + + obj.SetHeader(&Header{Value: &Header_PayloadChecksum{obj.PayloadChecksum()}}) + require.NoError(t, obj.Sign(sessionkey)) + + t.Run("correct", func(t *testing.T) { + err = obj.Verify() + require.NoError(t, err) + }) +} diff --git a/proto.go b/proto.go new file mode 100644 index 00000000..b15f22a7 --- /dev/null +++ b/proto.go @@ -0,0 +1,7 @@ +package neofs_proto // import "github.com/nspcc-dev/neofs-proto" + +import ( + _ "github.com/gogo/protobuf/gogoproto" + _ "github.com/gogo/protobuf/proto" + _ "github.com/golang/protobuf/proto" +) diff --git a/query/types.go b/query/types.go new file mode 100644 index 00000000..15a54f65 --- /dev/null +++ b/query/types.go @@ -0,0 +1,43 @@ +package query + +import ( + "strings" + + "github.com/gogo/protobuf/proto" +) + +var ( + _ proto.Message = (*Query)(nil) + _ proto.Message = (*Filter)(nil) +) + +// String returns string representation of Filter. +func (m Filter) String() string { + b := new(strings.Builder) + b.WriteString("") + return b.String() +} + +// String returns string representation of Query. +func (m Query) String() string { + b := new(strings.Builder) + b.WriteString(" p.LastEpoch || p.OwnerID.Empty() { + return nil + } + + t := &PToken{ + mtx: new(sync.Mutex), + Token: Token{ + ID: tid, + Header: VerificationHeader{PublicKey: crypto.MarshalPublicKey(&key.PublicKey)}, + FirstEpoch: p.FirstEpoch, + LastEpoch: p.LastEpoch, + ObjectID: p.ObjectID, + OwnerID: p.OwnerID, + }, + PrivateKey: key, + } + + s.Lock() + s.tokens[t.ID] = t + s.Unlock() + + return t +} + +// Fetch tries to fetch a token with specified id. +func (s *simpleStore) Fetch(id TokenID) *PToken { + s.RLock() + defer s.RUnlock() + + return s.tokens[id] +} + +// Remove removes token with id from store. +func (s *simpleStore) Remove(id TokenID) { + s.Lock() + delete(s.tokens, id) + s.Unlock() +} diff --git a/session/store_test.go b/session/store_test.go new file mode 100644 index 00000000..1a9e9771 --- /dev/null +++ b/session/store_test.go @@ -0,0 +1,84 @@ +package session + +import ( + "crypto/ecdsa" + "crypto/rand" + "testing" + + crypto "github.com/nspcc-dev/neofs-crypto" + "github.com/nspcc-dev/neofs-proto/refs" + "github.com/stretchr/testify/require" +) + +type testClient struct { + *ecdsa.PrivateKey + OwnerID OwnerID +} + +func (c *testClient) Sign(data []byte) ([]byte, error) { + return crypto.Sign(c.PrivateKey, data) +} + +func newTestClient(t *testing.T) *testClient { + key, err := ecdsa.GenerateKey(defaultCurve(), rand.Reader) + require.NoError(t, err) + + owner, err := refs.NewOwnerID(&key.PublicKey) + require.NoError(t, err) + + return &testClient{PrivateKey: key, OwnerID: owner} +} + +func signToken(t *testing.T, token *PToken, c *testClient) { + require.NotNil(t, token) + + signH, err := c.Sign(token.Header.PublicKey) + require.NoError(t, err) + require.NotNil(t, signH) + + // data is not yet signed + require.False(t, token.Verify(&c.PublicKey)) + + signT, err := c.Sign(token.verificationData()) + require.NoError(t, err) + require.NotNil(t, signT) + + token.AddSignatures(signH, signT) + require.True(t, token.Verify(&c.PublicKey)) +} + +func TestTokenStore(t *testing.T) { + s := NewSimpleStore() + + oid, err := refs.NewObjectID() + require.NoError(t, err) + + c := newTestClient(t) + require.NotNil(t, c) + + // create new token + token := s.New(TokenParams{ObjectID: []ObjectID{oid}, OwnerID: c.OwnerID}) + signToken(t, token, c) + + // check that it can be fetched + t1 := s.Fetch(token.ID) + require.NotNil(t, t1) + require.Equal(t, token, t1) + + // create and sign another token by the same client + t1 = s.New(TokenParams{ObjectID: []ObjectID{oid}, OwnerID: c.OwnerID}) + signToken(t, t1, c) + + data := []byte{1, 2, 3} + sign, err := t1.SignData(data) + require.NoError(t, err) + require.Error(t, token.Header.VerifyData(data, sign)) + + sign, err = token.SignData(data) + require.NoError(t, err) + require.NoError(t, token.Header.VerifyData(data, sign)) + + s.Remove(token.ID) + require.Nil(t, s.Fetch(token.ID)) + require.NotNil(t, s.Fetch(t1.ID)) +} diff --git a/session/types.go b/session/types.go new file mode 100644 index 00000000..ceb2944a --- /dev/null +++ b/session/types.go @@ -0,0 +1,159 @@ +package session + +import ( + "crypto/ecdsa" + "encoding/binary" + "sync" + + crypto "github.com/nspcc-dev/neofs-crypto" + "github.com/nspcc-dev/neofs-proto/internal" + "github.com/nspcc-dev/neofs-proto/refs" + "github.com/pkg/errors" +) + +type ( + // ObjectID type alias. + ObjectID = refs.ObjectID + // OwnerID type alias. + OwnerID = refs.OwnerID + // TokenID type alias. + TokenID = refs.UUID + + // PToken is a wrapper around Token that allows to sign data + // and to do thread-safe manipulations. + PToken struct { + Token + + mtx *sync.Mutex + PrivateKey *ecdsa.PrivateKey + } +) + +const ( + // ErrWrongFirstEpoch is raised when passed Token contains wrong first epoch. + // First epoch is an epoch since token is valid + ErrWrongFirstEpoch = internal.Error("wrong first epoch") + + // ErrWrongLastEpoch is raised when passed Token contains wrong last epoch. + // Last epoch is an epoch until token is valid + ErrWrongLastEpoch = internal.Error("wrong last epoch") + + // ErrWrongOwner is raised when passed Token contains wrong OwnerID. + ErrWrongOwner = internal.Error("wrong owner") + + // ErrEmptyPublicKey is raised when passed Token contains wrong public key. + ErrEmptyPublicKey = internal.Error("empty public key") + + // ErrWrongObjectsCount is raised when passed Token contains wrong objects count. + ErrWrongObjectsCount = internal.Error("wrong objects count") + + // ErrWrongObjects is raised when passed Token contains wrong object ids. + ErrWrongObjects = internal.Error("wrong objects") + + // ErrInvalidSignature is raised when wrong signature is passed to VerificationHeader.VerifyData(). + ErrInvalidSignature = internal.Error("invalid signature") +) + +// verificationData returns byte array to sign. +// Note: protobuf serialization is inconsistent as +// wire order is unspecified. +func (m *Token) verificationData() (data []byte) { + var size int + if l := len(m.ObjectID); l > 0 { + size = m.ObjectID[0].Size() + data = make([]byte, 16+l*size) + } else { + data = make([]byte, 16) + } + binary.BigEndian.PutUint64(data, m.FirstEpoch) + binary.BigEndian.PutUint64(data[8:], m.LastEpoch) + for i := range m.ObjectID { + copy(data[16+i*size:], m.ObjectID[i].Bytes()) + } + return +} + +// IsSame checks if the passed token is valid and equal to current token +func (m *Token) IsSame(t *Token) error { + switch { + case m.FirstEpoch != t.FirstEpoch: + return ErrWrongFirstEpoch + case m.LastEpoch != t.LastEpoch: + return ErrWrongLastEpoch + case !m.OwnerID.Equal(t.OwnerID): + return ErrWrongOwner + case m.Header.PublicKey == nil: + return ErrEmptyPublicKey + case len(m.ObjectID) != len(t.ObjectID): + return ErrWrongObjectsCount + default: + for i := range m.ObjectID { + if !m.ObjectID[i].Equal(t.ObjectID[i]) { + return errors.Wrapf(ErrWrongObjects, "expect %s, actual: %s", m.ObjectID[i], t.ObjectID[i]) + } + } + } + return nil +} + +// Sign tries to sign current Token data and stores signature inside it. +func (m *Token) Sign(key *ecdsa.PrivateKey) error { + if err := m.Header.Sign(key); err != nil { + return err + } + + s, err := crypto.Sign(key, m.verificationData()) + if err != nil { + return err + } + + m.Signature = s + return nil +} + +// Verify checks if token is correct and signed. +func (m *Token) Verify(keys ...*ecdsa.PublicKey) bool { + if m.FirstEpoch > m.LastEpoch { + return false + } + for i := range keys { + if m.Header.Verify(keys[i]) && crypto.Verify(keys[i], m.verificationData(), m.Signature) == nil { + return true + } + } + return false +} + +// Sign adds token signatures. +func (t *PToken) AddSignatures(signH, signT []byte) { + t.mtx.Lock() + + t.Header.KeySignature = signH + t.Signature = signT + + t.mtx.Unlock() +} + +// SignData signs data with session private key. +func (t *PToken) SignData(data []byte) ([]byte, error) { + return crypto.Sign(t.PrivateKey, data) +} + +// VerifyData checks if signature of data by token t +// is equal to sign. +func (m *VerificationHeader) VerifyData(data, sign []byte) error { + if crypto.Verify(crypto.UnmarshalPublicKey(m.PublicKey), data, sign) != nil { + return ErrInvalidSignature + } + return nil +} + +// Verify checks if verification header was issued by id. +func (m *VerificationHeader) Verify(keys ...*ecdsa.PublicKey) bool { + for i := range keys { + if crypto.Verify(keys[i], m.PublicKey, m.KeySignature) == nil { + return true + } + } + return false +} diff --git a/session/types.pb.go b/session/types.pb.go new file mode 100644 index 00000000..ce0e0a4e Binary files /dev/null and b/session/types.pb.go differ diff --git a/session/types.proto b/session/types.proto new file mode 100644 index 00000000..8989040d --- /dev/null +++ b/session/types.proto @@ -0,0 +1,22 @@ +syntax = "proto3"; +package session; +option go_package = "github.com/nspcc-dev/neofs-proto/session"; + +import "github.com/gogo/protobuf/gogoproto/gogo.proto"; + +option (gogoproto.stable_marshaler_all) = true; + +message VerificationHeader { + bytes PublicKey = 1; + bytes KeySignature = 2; +} + +message Token { + VerificationHeader Header = 1 [(gogoproto.nullable) = false]; + bytes OwnerID = 2 [(gogoproto.customtype) = "OwnerID", (gogoproto.nullable) = false]; + uint64 FirstEpoch = 3; + uint64 LastEpoch = 4; + repeated bytes ObjectID = 5 [(gogoproto.customtype) = "ObjectID", (gogoproto.nullable) = false]; + bytes Signature = 6; + bytes ID = 7 [(gogoproto.customtype) = "TokenID", (gogoproto.nullable) = false]; +} diff --git a/state/service.go b/state/service.go new file mode 100644 index 00000000..dd2ec9b7 --- /dev/null +++ b/state/service.go @@ -0,0 +1,48 @@ +package state + +import ( + "github.com/golang/protobuf/proto" + "github.com/prometheus/client_golang/prometheus" + dto "github.com/prometheus/client_model/go" + "google.golang.org/grpc/codes" + "google.golang.org/grpc/status" +) + +// MetricFamily is type alias for proto.Message generated +// from github.com/prometheus/client_model/metrics.proto. +type MetricFamily = dto.MetricFamily + +// EncodeMetrics encodes metrics from gatherer into MetricsResponse message, +// if something went wrong returns gRPC Status error (can be returned from service). +func EncodeMetrics(g prometheus.Gatherer) (*MetricsResponse, error) { + metrics, err := g.Gather() + if err != nil { + return nil, status.New(codes.Internal, err.Error()).Err() + } + + results := make([][]byte, 0, len(metrics)) + for _, mf := range metrics { + item, err := proto.Marshal(mf) + if err != nil { + return nil, status.New(codes.Internal, err.Error()).Err() + } + + results = append(results, item) + } + + return &MetricsResponse{Metrics: results}, nil +} + +// DecodeMetrics decodes metrics from MetricsResponse to []MetricFamily, +// if something went wrong returns error. +func DecodeMetrics(r *MetricsResponse) ([]*MetricFamily, error) { + metrics := make([]*dto.MetricFamily, 0, len(r.Metrics)) + for i := range r.Metrics { + mf := new(MetricFamily) + if err := proto.Unmarshal(r.Metrics[i], mf); err != nil { + return nil, err + } + } + + return metrics, nil +} diff --git a/state/service.pb.go b/state/service.pb.go new file mode 100644 index 00000000..f71dad6b Binary files /dev/null and b/state/service.pb.go differ diff --git a/state/service.proto b/state/service.proto new file mode 100644 index 00000000..d0e59b4f --- /dev/null +++ b/state/service.proto @@ -0,0 +1,37 @@ +syntax = "proto3"; +package state; +option go_package = "github.com/nspcc-dev/neofs-proto/state"; + +import "bootstrap/types.proto"; +import "github.com/gogo/protobuf/gogoproto/gogo.proto"; + +option (gogoproto.stable_marshaler_all) = true; + +// The Status service definition. +service Status { + rpc Netmap(NetmapRequest) returns (bootstrap.SpreadMap); + rpc Metrics(MetricsRequest) returns (MetricsResponse); + rpc HealthCheck(HealthRequest) returns (HealthResponse); +} + +// NetmapRequest message to request current node netmap +message NetmapRequest {} + +// MetricsRequest message to request node metrics +message MetricsRequest {} + +// MetricsResponse contains [][]byte, +// every []byte is marshaled MetricFamily proto message +// from github.com/prometheus/client_model/metrics.proto +message MetricsResponse { + repeated bytes Metrics = 1; +} + +// HealthRequest message to check current state +message HealthRequest {} + +// HealthResponse message with current state +message HealthResponse { + bool Healthy = 1; + string Status = 2; +}