gateway-s3: vendor-update minio-go (#4220)
Krishna Srinivas
8 years ago
committed by
Harshavardhana
parent
4aa65910e5
commit
e5b2e25caf
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/* |
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* Minio Go Library for Amazon S3 Compatible Cloud Storage (C) 2016 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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*/ |
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package minio |
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import ( |
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"fmt" |
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"net/http" |
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"time" |
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) |
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// RequestHeaders - implement methods for setting special
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// request headers for GET, HEAD object operations.
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// http://docs.aws.amazon.com/AmazonS3/latest/API/RESTObjectGET.html
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type RequestHeaders struct { |
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http.Header |
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} |
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// NewGetReqHeaders - initializes a new request headers for GET request.
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func NewGetReqHeaders() RequestHeaders { |
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return RequestHeaders{ |
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Header: make(http.Header), |
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} |
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} |
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// NewHeadReqHeaders - initializes a new request headers for HEAD request.
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func NewHeadReqHeaders() RequestHeaders { |
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return RequestHeaders{ |
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Header: make(http.Header), |
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} |
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} |
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// SetMatchETag - set match etag.
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func (c RequestHeaders) SetMatchETag(etag string) error { |
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if etag == "" { |
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return ErrInvalidArgument("ETag cannot be empty.") |
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} |
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c.Set("If-Match", etag) |
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return nil |
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} |
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// SetMatchETagExcept - set match etag except.
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func (c RequestHeaders) SetMatchETagExcept(etag string) error { |
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if etag == "" { |
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return ErrInvalidArgument("ETag cannot be empty.") |
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} |
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c.Set("If-None-Match", etag) |
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return nil |
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} |
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// SetUnmodified - set unmodified time since.
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func (c RequestHeaders) SetUnmodified(modTime time.Time) error { |
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if modTime.IsZero() { |
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return ErrInvalidArgument("Modified since cannot be empty.") |
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} |
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c.Set("If-Unmodified-Since", modTime.Format(http.TimeFormat)) |
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return nil |
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} |
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// SetModified - set modified time since.
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func (c RequestHeaders) SetModified(modTime time.Time) error { |
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if modTime.IsZero() { |
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return ErrInvalidArgument("Modified since cannot be empty.") |
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} |
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c.Set("If-Modified-Since", modTime.Format(http.TimeFormat)) |
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return nil |
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} |
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// SetRange - set the start and end offset of the object to be read.
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// See https://tools.ietf.org/html/rfc7233#section-3.1 for reference.
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func (c RequestHeaders) SetRange(start, end int64) error { |
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switch { |
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case start <= 0 && end < 0: |
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// Read everything until the 'end'. `bytes=-N`
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c.Set("Range", fmt.Sprintf("bytes=%d", end)) |
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case start > 0 && end == 0: |
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// Read everything starting from offset 'start'. `bytes=N-`
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c.Set("Range", fmt.Sprintf("bytes=%d-", start)) |
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case start > 0 && end > 0 && end >= start: |
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// Read everything starting at 'start' till the 'end'. `bytes=N-M`
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c.Set("Range", fmt.Sprintf("bytes=%d-%d", start, end)) |
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case start == 0 && end == 0: |
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// Client attempting to read the whole file.
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return nil |
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} |
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// All other cases such as
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// bytes=-N-
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// bytes=N-M where M < N
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// These return error and are not supported.
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return ErrInvalidArgument(fmt.Sprintf("Invalid range start and end specified bytes=%d-%d", |
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start, end)) |
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} |
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