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s3: add --s3-sse-customer-key-base64 to supply keys with binary data

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Fixes #6400
This commit is contained in:
Richard Bateman 2022-09-17 10:28:44 -06:00 committed by GitHub
parent 1c99661d8c
commit 4f374bc264
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 26 additions and 2 deletions
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28
backend/s3/s3.go
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@ -1566,8 +1566,21 @@ isn't set then "acl" is used instead.`,
Help: "arn:aws:kms:*",
}},
}, {
Name: "sse_customer_key",
Help: "If using SSE-C you must provide the secret encryption key used to encrypt/decrypt your data.",
Name: "sse_customer_key",
Help: `To use SSE-C you may provide the secret encryption key used to encrypt/decrypt your data.
Alternatively you can provide --sse-customer-key-base64.`,
Provider: "AWS,Ceph,ChinaMobile,Minio",
Advanced: true,
Examples: []fs.OptionExample{{
Value: "",
Help: "None",
}},
}, {
Name: "sse_customer_key_base64",
Help: `If using SSE-C you must provide the secret encryption key encoded in base64 format to encrypt/decrypt your data.
Alternatively you can provide --sse-customer-key.`,
Provider: "AWS,Ceph,ChinaMobile,Minio",
Advanced: true,
Examples: []fs.OptionExample{{
@ -2142,6 +2155,7 @@ type Options struct {
SSEKMSKeyID string `config:"sse_kms_key_id"`
SSECustomerAlgorithm string `config:"sse_customer_algorithm"`
SSECustomerKey string `config:"sse_customer_key"`
SSECustomerKeyBase64 string `config:"sse_customer_key_base64"`
SSECustomerKeyMD5 string `config:"sse_customer_key_md5"`
StorageClass string `config:"storage_class"`
UploadCutoff fs.SizeSuffix `config:"upload_cutoff"`
@ -2679,6 +2693,16 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
if opt.BucketACL == "" {
opt.BucketACL = opt.ACL
}
if opt.SSECustomerKeyBase64 != "" && opt.SSECustomerKey != "" {
return nil, errors.New("s3: can't use sse_customer_key and sse_customer_key_base64 at the same time")
} else if opt.SSECustomerKeyBase64 != "" {
// Decode the base64-encoded key and store it in the SSECustomerKey field
decoded, err := base64.StdEncoding.DecodeString(opt.SSECustomerKeyBase64)
if err != nil {
return nil, fmt.Errorf("s3: Could not decode sse_customer_key_base64: %w", err)
}
opt.SSECustomerKey = string(decoded)
}
if opt.SSECustomerKey != "" && opt.SSECustomerKeyMD5 == "" {
// calculate CustomerKeyMD5 if not supplied
md5sumBinary := md5.Sum([]byte(opt.SSECustomerKey))