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128 lines
4.0 KiB
Go
128 lines
4.0 KiB
Go
/*
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* Minio 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 cmd
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import (
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"encoding/xml"
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"fmt"
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"io/ioutil"
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"net"
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"net/http"
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. "gopkg.in/check.v1"
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)
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// concurreny level for certain parallel tests.
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const (
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testConcurrencyLevel = 10
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)
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///
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/// Excerpts from @lsegal - https://github.com/aws/aws-sdk-js/issues/659#issuecomment-120477258
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///
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/// User-Agent:
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///
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/// This is ignored from signing because signing this causes problems with generating pre-signed URLs
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/// (that are executed by other agents) or when customers pass requests through proxies, which may
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/// modify the user-agent.
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///
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/// Content-Length:
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///
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/// This is ignored from signing because generating a pre-signed URL should not provide a content-length
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/// constraint, specifically when vending a S3 pre-signed PUT URL. The corollary to this is that when
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/// sending regular requests (non-pre-signed), the signature contains a checksum of the body, which
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/// implicitly validates the payload length (since changing the number of bytes would change the checksum)
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/// and therefore this header is not valuable in the signature.
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///
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/// Content-Type:
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///
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/// Signing this header causes quite a number of problems in browser environments, where browsers
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/// like to modify and normalize the content-type header in different ways. There is more information
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/// on this in https://github.com/aws/aws-sdk-js/issues/244. Avoiding this field simplifies logic
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/// and reduces the possibility of future bugs
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///
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/// Authorization:
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///
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/// Is skipped for obvious reasons
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///
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var ignoredHeaders = map[string]bool{
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"Authorization": true,
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"Content-Type": true,
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"Content-Length": true,
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"User-Agent": true,
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}
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// Headers to ignore in streaming v4
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var ignoredStreamingHeaders = map[string]bool{
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"Authorization": true,
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"Content-Type": true,
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"Content-Md5": true,
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"User-Agent": true,
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}
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// calculateSignedChunkLength - calculates the length of chunk metadata
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func calculateSignedChunkLength(chunkDataSize int64) int64 {
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return int64(len(fmt.Sprintf("%x", chunkDataSize))) +
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17 + // ";chunk-signature="
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64 + // e.g. "f2ca1bb6c7e907d06dafe4687e579fce76b37e4e93b7605022da52e6ccc26fd2"
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2 + // CRLF
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chunkDataSize +
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2 // CRLF
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}
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// calculateSignedChunkLength - calculates the length of the overall stream (data + metadata)
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func calculateStreamContentLength(dataLen, chunkSize int64) int64 {
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if dataLen <= 0 {
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return 0
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}
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chunksCount := int64(dataLen / chunkSize)
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remainingBytes := int64(dataLen % chunkSize)
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streamLen := int64(0)
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streamLen += chunksCount * calculateSignedChunkLength(chunkSize)
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if remainingBytes > 0 {
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streamLen += calculateSignedChunkLength(remainingBytes)
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}
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streamLen += calculateSignedChunkLength(0)
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return streamLen
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}
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// Ask the kernel for a free open port.
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func getFreePort() int {
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addr, err := net.ResolveTCPAddr("tcp", "localhost:0")
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if err != nil {
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panic(err)
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}
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l, err := net.ListenTCP("tcp", addr)
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if err != nil {
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panic(err)
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}
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defer l.Close()
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return l.Addr().(*net.TCPAddr).Port
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}
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func verifyError(c *C, response *http.Response, code, description string, statusCode int) {
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data, err := ioutil.ReadAll(response.Body)
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c.Assert(err, IsNil)
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errorResponse := APIErrorResponse{}
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err = xml.Unmarshal(data, &errorResponse)
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c.Assert(err, IsNil)
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c.Assert(errorResponse.Code, Equals, code)
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c.Assert(errorResponse.Message, Equals, description)
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c.Assert(response.StatusCode, Equals, statusCode)
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}
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