Commit graph

223 commits

Author SHA1 Message Date
Leonard Lyubich
798fca9354 [#70] core/object: Process a delete group at tombstone
Send object group to delete queue processor after tombstone content
validation.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-05 09:36:29 +03:00
Leonard Lyubich
2b16edebc9 [#70] object/put: Fix NPE caused by nil FormatValidator
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-05 09:36:29 +03:00
Alex Vanin
801999c577 [#66] Impersonate object service verb from session token
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-10-02 19:47:49 +03:00
Alex Vanin
afeebd310c [#66] Use session token of object header at put ACL check
Owner of the request is stored in session token most of the times.
Put request contains session token in the object body, so we have
to fetch it from there.

Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-10-02 19:47:49 +03:00
Leonard Lyubich
69a69cdbee [#67] object/eacl: Implement eACL validator
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 19:46:45 +03:00
Leonard Lyubich
44fcd2f212 [#64] object/delete: Change the formation of tombstone
Make delete service to write list of child object addresses to tombstone
payload.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 19:46:27 +03:00
Leonard Lyubich
33ca88f85f [#64] core/object: Claim TombstoneContent in tombstone payload
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 19:46:27 +03:00
Leonard Lyubich
21bdc82fb5 [#64] core/object: Implement tombstone content messages
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 19:46:27 +03:00
Alex Vanin
6ee908c2db [#65] Support FS bucket and BoltDB bucket
These buckets can be used to store blobs and metadata.
They will be removed as enhanced blob storage will be
implemented for neofs-node. To setup storage type
use `storage.object.type` and `storage.meta.type` params.

Available options:
  - inmemory (default)
  - boltdb
  - filesystem

Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-10-02 14:48:00 +03:00
Alex Vanin
861bac3892 [#59] Use max msg size in transport server and splitter
For GRPC it is about 4 MiB.

Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-10-02 11:25:36 +03:00
Alex Vanin
d2009c8731 [#59] Add grpc payload splitter in object service chain
GRPC has default message limit of 4MiB. Since every transmitted
neofs message has to be signed, then original message should
be split into transfer fit structures before signature service.

This commit introduce transport payload splitter for object
service pipeline. This splitter works with stream response
for methods:

  - object.Get
  - object.Range
  - object.Search

Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
64691e6248 [#62] object/transformer: Fix incorrect relation init stage
In previous implementation InitRelations call in payload size limiter was
called in write chunk method. This provoked clearing the split header in
children starting from the second.

Replace InitRelations call to the 1st child allocating stage.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Alex Vanin
e158497560 [#43] cmd/neofs-node: Support hostnames with dns, ipv4 and ipv6 addresses
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-10-02 11:25:36 +03:00
Alex Vanin
f930993e3a [#43] pkg/network: Do not panic at multiaddr to net.Addr conversion
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
6824a6f67b [#61] object/search: Support non-root and non-leaf filters
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
51e373c3f0 [#61] object/search: Support latest search filters
Refactor query to match object and its parents in a single call. Support
KeyRoot and KeyLeaf filters.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
f89c848e84 [#61] object/search: Filter objects by container ID from request
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
1654df4d97 [#61] Update to latest neofs-api-go changes
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
f251645def [#58] object/delete: Process linking object in Delete service
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
16252ad09a [#58] object/search: Add object-with-children filter
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
624e8cd3cb [#58] object/search: Refactor RelationSearcher implementation
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
4bcfed37ca [#58] object/head: Generalize RelationSearcher interface method
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
6eb353c804 [#58] object/put: Validate payload content after filling
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
2abb03dbd1 [#58] core/object: Decouple the payload content validation method
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
107f3097e4 [#58] core/object: Add content validation to FormatValidator
Add content validation step to FormatValidator. Check tombstone payload
correctness.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
017afbf0e3 [#58] services/object: Implement Delete service
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
b24adeae89 [#58] object/transformer: Inherit type of parent object
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
39ddb3a3f4 [#45] object/search: Fix double write of local result
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
08b9ae547a [#45] object/search: Add filtering parent objects
In previous implementation object.Search services allowed to search only
physically stored objects. This limitation did not allow getting the ID of
the split object.

Extend search execution logic with parent object filtering. Parent objects
that passed filters are now included in the result

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
88459963fb [#57] services/object: Sign requests with session key
Use key storage in object services in order to sign requests with private
session key within user session.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
68178b8d74 [#57] core/object: Fix validation of linking object
Linking object carries only identifier of the parent object. Fix Validate
method of FormatValidator to not validate parent object of the linking
object.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
be322835af [#57] services/object: Implement private key storage
Implement storage that provides access to local node key and session keys
through session token.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
2da323c4b9 [#57] services/object: Add session token to common parameters
Add session token field to CommonPrm. Remove session token field from Put
parameters.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
39c17253be [#57] services/object: Combine common service parameters
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
8cddbe58a6 [#56] object/transformer: Write session token to object body
Add session token argument to object formatter constructor which is written
to the object. Pass session token from trusted object Put.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
a4b9560ef6 [#56] object/put: Validate object format in untrusted Put
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
ede033256d [#56] core/object: Implement format validator
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
12d57af998 [#56] Update to latest neofs-api-go changes
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Alex Vanin
fc74e9b40c [#32] Remove recover from basic ACL checks
Basic ACL checker gets request field via getters that are
NPE-free, therefore we don't need to worry about function
invocations on nil structures.

Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-10-02 11:25:36 +03:00
Alex Vanin
4a8de3263d [#32] Use less v2 specific structures in basic ACL checker
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-10-02 11:25:36 +03:00
Alex Vanin
c5a44e0a05 [#32] Add tests for basic ACL helper
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-10-02 11:25:36 +03:00
Alex Vanin
91fef72bb6 [#32] Make basic ACL check in all object request
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-10-02 11:25:36 +03:00
Alex Vanin
49ee9a14a1 [#32] Add basic ACL helper
Basic ACL helper provides functions for simple access to
bit fields of basic ACL.

Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-10-02 11:25:36 +03:00
Alex Vanin
f6904db84f [#32] Use pkg/core interfaces to fetch container and netmap
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-10-02 11:25:36 +03:00
Alex Vanin
ad36a2cd8f [#32] Use classifier in basic ACL check
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-10-02 11:25:36 +03:00
Alex Vanin
5045b0c3d4 [#32] Add request sender classifier
ACL has to classify request senders by roles:
- owner of the container,
- request from container or inner ring node,
- any other request.

According to this roles ACL checker use different
bits of basic ACL to grant or deny access.

Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-10-02 11:25:36 +03:00
Alex Vanin
ab565b1862 [#32] Add basis of basic ACL check service
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
1b5ac0f2ae [#55] object/transformer: Fix NPE in case of empty payload
In previous implementation payload size limiter panicked in case of payload
emptiness. It was caused by the component waiting for at least one write of
a part of the payload.

Fix NPE occurrence with internal initialization after the WriteHeader call.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
867f1d772d [#53] Revert "[#51] object/put: Fix incorrect splited object streaming"
Revert commit 803ea345 that which spawned a duplication of the payload of
objects.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
0a51263e72 [#53] services/object: Implement GetRangeHash service
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
9d8576d397 [#53] util: Add SaltXOR function
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
834a8597c5 [#53] object/util: Add seek range function to range traverser
Add SetSeekRange method to RangeTraverser that switches traverser to work
with provided object payload range.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
8791c4f0a5 [#53] object/range: Share object range traverser between services
Replace object range chain utilities to object/util package in order to
reuse it in other services.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
759605410a [#53] object/range: Do not add chain element without the need
In previous implementation one excess element could be added to the chain.
Add previous sibling presence check to prevent this.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
bf2c33d7a9 [#52] services/object: Implement Get service
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
3880315a3f [#52] object/range: Add full range option to parameters
Add FullRange option to get range operation parameters that allows to get
payload range [0:object_size] w/o the actual knowledge of the object size.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
abf9ad3573 [#52] object/range: Attach received object header to result
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
0490107165 [#50] services/object: Implement GetRange service
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
dd16f568c3 [#50] object/head: Add right child to Head operation result
Head service receives right child of the processing object in some cases.
Add right child to Head result in order to use it as needed.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
3692f708ca [#51] object/put: Fix incorrect splited object streaming
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Alex Vanin
2fc2f8792e [#48] Make IR initial config errors more readable
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-10-02 11:25:36 +03:00
Alex Vanin
be353ad69f [#48] Use more extra fee at container registration
Large inner ring requires more gas to make container registration.
Container contract makes balance transfers for each inner ring node
and it require extra gas to execute. This estimation should be enough
for seven inner ring nodes.

Later there should be heuristic evaluations for this: #47

Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
6f4b477195 [#44] services/object: Refactor for minor optimization
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
3692032e30 [#44] object/head: Fix incorrect placement traversal
Add object identifier option to placement traverser of object.Head service.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
a433f9dd85 [#42] object/transformer: Fix incorrect checksums of parent object
In previous implementations object size limiter left checksums of parent
object payload unset. This was caused by the closure that written calculated
checksums to the child object instead of parent one.

Construct payload checksum writers in separate function in order to prevent
closure bug.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Alex Vanin
3038c6cc5c [#37] Implement eACL related morph wrapper functions
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-10-02 11:25:36 +03:00
Alex Vanin
14f85184ab [#37] Implement container related morph wrapper functions
Container get wrapper implements container.Source interface
so it can be used in object service as container storage.

Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
d6a9c06c25 [#39] service/object: Complicate Head service logic
Add a header recovery step through finding and getting the header of the
rightmost child.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
753a6a2de5 [#39] service/object: Implement right child searcher on Search service
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Leonard Lyubich
39c324bd6d [#39] service/object: Add query filters to search right child
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00
Alex Vanin
28534a509d [#36] Add attribute parser
Attribute parser converts strings of attribute chain into
one-dimension array of NodeInfo attributes, that used
in network map.

Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-10-02 11:25:35 +03:00
Leonard Lyubich
05f3963975 [#38] service/object: Implement simplified object Head service
Implement Head service w/o linking object processing and restoration from
split-chain.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:35 +03:00
Leonard Lyubich
21fc85540a [#38] localstore: Finalize object to meta converter
Use CutPayload method of RawObject in order to make object meta structure
from source object.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:35 +03:00
Leonard Lyubich
2f57855775 [#38] sdk/object: Add CutPayload method to RawObject
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:35 +03:00
Leonard Lyubich
becb9148c1 [#38] sdk/object: Add Object to RawObject converter
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:35 +03:00
Leonard Lyubich
09084a7bff [#34] service/object: Implement object Search distributed service
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:35 +03:00
Leonard Lyubich
a5ebdd1891 [#34] services/object: Replace local placement to util
Replace local placement tool in order to reuse it in different object
services.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:35 +03:00
Leonard Lyubich
ded0350c5e [#34] localstore: Store object identifier in meta storage
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:35 +03:00
Alex Vanin
99d380c20b [#35] Implement netmap source interface in morph wrapper
Netmap source interface used by object service to build
placement based on current or previous network map.

Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-10-02 11:25:35 +03:00
Alex Vanin
92fb384c09 [#35] Add snapshot method for morph/netmap client
With snapshot method node can get previous network
maps from previous epoch.

Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-10-02 11:25:35 +03:00
Leonard Lyubich
57f8d3745d [#33] service/object: Implement object Put distributed service
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:35 +03:00
Leonard Lyubich
dcfb6a6b3a [#33] placement: Remote UseNetworkMap option from traverser
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:35 +03:00
Leonard Lyubich
12e5e4e2d8 [#33] placement: Add public constructor for netmap placement builder
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:35 +03:00
Leonard Lyubich
900949c648 [#33] network: Implement tool to work with local address
Implement read-only local network address source. Implement function for
check if network address is local.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:35 +03:00
Leonard Lyubich
d3349a293a [#33] core/object: Add to-SDK object converting method
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:35 +03:00
Leonard Lyubich
3d25d6c217 [#33] core/netmap: Define read-only storage interface
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:35 +03:00
Leonard Lyubich
030375af63 [#33] container: Define read-only storage interface
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:35 +03:00
Leonard Lyubich
d52bdb27c5 [#33] util: Define worker pool interface
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:35 +03:00
Leonard Lyubich
d3b5ff9526 [#33] session/storage: Change Get method signature
In previous implementation session Storage.Get method took a v2 owner
identifier as an argument.

Change method signature to as an argument owner identifier from NeoFS SDK.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:35 +03:00
Leonard Lyubich
4024b3c30e [#33] services/session: Fix signature service constructor
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:35 +03:00
Leonard Lyubich
c312e11f6e [#33] network: Add network endpoint getter to Address
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:35 +03:00
Leonard Lyubich
73ee5105ff [#31] placement: Fix confused selectors and replicas
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:35 +03:00
Leonard Lyubich
f7c685f682 [#31] placement: Fix incorrect selectors processing
In previous implementation traverser worked like all counts of all selectors
are equal to counts of corresponding replicas. Make traverser to take into
account select count of all replicas.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:35 +03:00
Leonard Lyubich
e7925fbc1c [#31] placement: Implement container placement traverser
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:35 +03:00
Leonard Lyubich
44def45ff4 [#31] network: Make the address a separate type
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:35 +03:00
Leonard Lyubich
d6a4965841 [#31] network: Remove unused dial functions
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:35 +03:00
Leonard Lyubich
121137c62b [#30] object_manager: Implement object transformers
Define object writer interface. Implement payload size limiter that
restricts payload size of the object. Implement object format moulder that
fill verification fields and finalizes object structure.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:35 +03:00
Leonard Lyubich
0a6130a924 [#30] core/object: Make Object constructors similar to RawObject
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:35 +03:00
Leonard Lyubich
2975b61abd [#30] core/object: Remove no longer used MarshalStableV2 method
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:35 +03:00
Leonard Lyubich
87487cde00 [#30] localstorage: Refactor source code
Move the serialization of the address and object into separate functions and
use them in methods. Use recently implemented RawObject constructor and
method in metaFromObject function.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:35 +03:00