Passing `nil` context to `rpc.Balance` leads to panic. To prevent panic,
we need to provide some default context in `Dial`.
Signed-off-by: Leonard Lyubich <ctulhurider@gmail.com>
In previous implementation of `Client.Dial` there was no ability to
specify parent context (e.g. global application context).
Add `PrmDial.SetContext` method which accepts optional base dial
context. Use the context to open client connection or fall back to using
`context.Background()`.
Upgraded version of `github.com/nspcc-dev/neofs-api-go/v2` module
also fixes the problem when dial timeout didn't work properly.
Signed-off-by: Leonard Lyubich <ctulhurider@gmail.com>
There is a need to test each `Client` operation. In previous
implementation `Client` was based on real socket connection. This didn't
allow to test the `Client` without OS resources. In order to write
convenient and useful unit tests we need to slightly refactor the code.
Introduce `neoFSAPIServer` interface as a provider of `Client` type's
abstraction from the exact NeoFS API server. Add `netMapSnapshot` method
for initial implementation. Define core interface provider used in real
code. Set `coreServer` as an underlying `neoFSAPIServer` in
`Client.Dial`. Cover `Client.NetMapSnapshot` method with unit tests
using the opportunity to override the server.
From now client library can be tested not only with real physical
listeners but with imitations.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Use `node is under maintenance` message in `NodeUnderMaintenance.Error`
is `message` field is unset in the status message.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Support decoding `NodeUnderMaintenance` status errors in `FromStatusV2`
function.
From now `NodeUnderMaintenance` instance can be decoded from
`status.Status` message of NeoFS API V2 protocol.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
In previous implementation `ObjectWrite.Close` called `close` method
which in turn called `result` callback. Thus failed statuses could lead
to false-positive result processing.
Replace calling `close` method with direct `closer` method's call in
`ObjectWrite.Close`.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
In previous implementation `client` package provided access to nested
response fields as pointers to them. This caused clients to handle nil
cases even when the field presence in the response is required.
Avoid returning pointers to required fields in response getters. This
also reduces reference counter load and allows fields to be decoded
directly without additional assignment.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Return `error` from all `ReadFromV2` methods in order to support
backward compatibility if message will be extended with some formatted
field.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Add `IsErrSessionExpired` and `IsErrSessionNotFound` functions which
assert corresponding session errors.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Client errors are quite often wrapped in context. When checking a
specific error, it is required not to lose the ability to determine it,
regardless of the attached context. In previous implementation `IsErr*`
functions didn't support wrapped errors.
Make `IsErr*` functions to preliminarily unwrap `error` argument before
type assertion. Use `errors.Unwrap` for this instead of `errors.As`
since the latter has the overhead of filling in an error.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Session token and signature isn't presented in `Container` and
`EACLTable` messages of NeoFS API V2 protocol. These entities are needed
for access control and doesn't carry payload of these messages.
Remove `SetSessionToken` / `SessionToken` methods of
`container.Container` and `eacl.Table` types. Provide methods to specify
these components in corresponding `Client` operations.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
After 85e3c7b087 `processResponse` method
sets `err` field or sets status in `statusRes` field of `contextCall`.
In previous implementation `ObjectWriter.Close` method returned
`ctxCall.err` on `false` return of `processResponse` method. This could
cause NPE-panic if status failure resolving was disabled.
Make `ObjectWriter.Close` to return internal `err` field only if it is
set, otherwise return status response.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
In previous implementation `processResponse` returned `true` if
`resolveAPIFailures` is set and status failure is received. This led to
post-processing of the results, which no longer pays attention to the
status. For example, `ObjectHead` returned `unexpected header type`
error due to empty body.
Make `contextCall.processResponse` to return success flag regardless of
`resolveAPIFailures` setting. Make `contextCall.processCall` to return
`err` field presence flag on `processResponse` false return.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Container contract expects signature of container ID value,
which is SHA256 of container body. Not the signature of stable
marshaled container.ID structure.
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
Object service of NeoFS API contains one client-side stream method:
object.Put. In client-side streams, server can return an error after
processing stream message. In this case write method returns `io.EOF`
and actual error reason is encoded in response status, which is
obtained after `Close()`. Client library should process such case.
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
Remove `signature` and `util/signature` packages. Re-implement their
functionality in new `crypto` package. Generalize the approach of
digital signature computation and verification by adding `Signer` and
`PublicKey` primitives similar to standard `crypto` package. Support
already exising in protocol signature schemes.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Get rid of `Option` pattern. Define `Init`, `Dial` and `Close` methods
for the corresponding stages of use.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Some callbacks, such as `close()` -> `result(v2)` may
generate new errors, so `processCall` should not ignore
them.
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
Extend docs with supported status returns. Add several helper functions
which allow to check the particular status.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Define `SessionTokenNotFound`/`SessionTokenExpired` types for
`TOKEN_NOT_FOUND`/`TOKEN_EXPIRED` codes.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Define `ObjectAccessDenied` type for `ACCESS_DENIED` code. Provide
method to write/read human-readable reason.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
