933c60bc3a
Currently when connections to vault fail, client perpetually retries this leads to assumptions that the server has issues and masks the problem. Re-purpose *crypto.Error* type to send appropriate errors back to the client.
93 lines
3.8 KiB
Go
93 lines
3.8 KiB
Go
// MinIO Cloud Storage, (C) 2015, 2016, 2017, 2018 MinIO, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package crypto
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import (
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"fmt"
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)
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// Error is the generic type for any error happening during decrypting
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// an object. It indicates that the object itself or its metadata was
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// modified accidentally or maliciously.
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type Error struct {
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err error
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}
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// Errorf - formats according to a format specifier and returns
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// the string as a value that satisfies error of type crypto.Error
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func Errorf(format string, a ...interface{}) error {
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return Error{err: fmt.Errorf(format, a...)}
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}
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// Unwrap the internal error.
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func (e Error) Unwrap() error { return e.err }
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// Error 'error' compatible method.
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func (e Error) Error() string {
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if e.err == nil {
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return "crypto: cause <nil>"
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}
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return e.err.Error()
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}
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var (
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// ErrInvalidEncryptionMethod indicates that the specified SSE encryption method
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// is not supported.
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ErrInvalidEncryptionMethod = Errorf("The encryption method is not supported")
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// ErrInvalidCustomerAlgorithm indicates that the specified SSE-C algorithm
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// is not supported.
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ErrInvalidCustomerAlgorithm = Errorf("The SSE-C algorithm is not supported")
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// ErrMissingCustomerKey indicates that the HTTP headers contains no SSE-C client key.
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ErrMissingCustomerKey = Errorf("The SSE-C request is missing the customer key")
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// ErrMissingCustomerKeyMD5 indicates that the HTTP headers contains no SSE-C client key
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// MD5 checksum.
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ErrMissingCustomerKeyMD5 = Errorf("The SSE-C request is missing the customer key MD5")
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// ErrInvalidCustomerKey indicates that the SSE-C client key is not valid - e.g. not a
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// base64-encoded string or not 256 bits long.
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ErrInvalidCustomerKey = Errorf("The SSE-C client key is invalid")
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// ErrSecretKeyMismatch indicates that the provided secret key (SSE-C client key / SSE-S3 KMS key)
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// does not match the secret key used during encrypting the object.
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ErrSecretKeyMismatch = Errorf("The secret key does not match the secret key used during upload")
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// ErrCustomerKeyMD5Mismatch indicates that the SSE-C key MD5 does not match the
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// computed MD5 sum. This means that the client provided either the wrong key for
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// a certain MD5 checksum or the wrong MD5 for a certain key.
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ErrCustomerKeyMD5Mismatch = Errorf("The provided SSE-C key MD5 does not match the computed MD5 of the SSE-C key")
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// ErrIncompatibleEncryptionMethod indicates that both SSE-C headers and SSE-S3 headers were specified, and are incompatible
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// The client needs to remove the SSE-S3 header or the SSE-C headers
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ErrIncompatibleEncryptionMethod = Errorf("Server side encryption specified with both SSE-C and SSE-S3 headers")
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)
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var (
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errMissingInternalIV = Errorf("The object metadata is missing the internal encryption IV")
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errMissingInternalSealAlgorithm = Errorf("The object metadata is missing the internal seal algorithm")
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errInvalidInternalIV = Errorf("The internal encryption IV is malformed")
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errInvalidInternalSealAlgorithm = Errorf("The internal seal algorithm is invalid and not supported")
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errMissingUpdatedKey = Errorf("The key update returned no error but also no sealed key")
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)
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var (
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// errOutOfEntropy indicates that the a source of randomness (PRNG) wasn't able
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// to produce enough random data. This is fatal error and should cause a panic.
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errOutOfEntropy = Errorf("Unable to read enough randomness from the system")
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)
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