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523 lines
20 KiB
523 lines
20 KiB
/*
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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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"bytes"
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"encoding/base64"
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"fmt"
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"io/ioutil"
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"mime/multipart"
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"net/http"
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"net/http/httptest"
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"testing"
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"time"
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humanize "github.com/dustin/go-humanize"
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)
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const (
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expirationDateFormat = "2006-01-02T15:04:05.999Z"
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iso8601DateFormat = "20060102T150405Z"
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)
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func newPostPolicyBytesV4WithContentRange(credential, bucketName, objectKey string, expiration time.Time) []byte {
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t := time.Now().UTC()
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// Add the expiration date.
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expirationStr := fmt.Sprintf(`"expiration": "%s"`, expiration.Format(expirationDateFormat))
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// Add the bucket condition, only accept buckets equal to the one passed.
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bucketConditionStr := fmt.Sprintf(`["eq", "$bucket", "%s"]`, bucketName)
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// Add the key condition, only accept keys equal to the one passed.
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keyConditionStr := fmt.Sprintf(`["eq", "$key", "%s/upload.txt"]`, objectKey)
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// Add content length condition, only accept content sizes of a given length.
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contentLengthCondStr := `["content-length-range", 1024, 1048576]`
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// Add the algorithm condition, only accept AWS SignV4 Sha256.
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algorithmConditionStr := `["eq", "$x-amz-algorithm", "AWS4-HMAC-SHA256"]`
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// Add the date condition, only accept the current date.
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dateConditionStr := fmt.Sprintf(`["eq", "$x-amz-date", "%s"]`, t.Format(iso8601DateFormat))
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// Add the credential string, only accept the credential passed.
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credentialConditionStr := fmt.Sprintf(`["eq", "$x-amz-credential", "%s"]`, credential)
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// Combine all conditions into one string.
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conditionStr := fmt.Sprintf(`"conditions":[%s, %s, %s, %s, %s, %s]`, bucketConditionStr,
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keyConditionStr, contentLengthCondStr, algorithmConditionStr, dateConditionStr, credentialConditionStr)
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retStr := "{"
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retStr = retStr + expirationStr + ","
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retStr = retStr + conditionStr
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retStr = retStr + "}"
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return []byte(retStr)
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}
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// newPostPolicyBytesV4 - creates a bare bones postpolicy string with key and bucket matches.
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func newPostPolicyBytesV4(credential, bucketName, objectKey string, expiration time.Time) []byte {
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t := time.Now().UTC()
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// Add the expiration date.
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expirationStr := fmt.Sprintf(`"expiration": "%s"`, expiration.Format(expirationDateFormat))
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// Add the bucket condition, only accept buckets equal to the one passed.
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bucketConditionStr := fmt.Sprintf(`["eq", "$bucket", "%s"]`, bucketName)
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// Add the key condition, only accept keys equal to the one passed.
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keyConditionStr := fmt.Sprintf(`["eq", "$key", "%s/upload.txt"]`, objectKey)
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// Add the algorithm condition, only accept AWS SignV4 Sha256.
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algorithmConditionStr := `["eq", "$x-amz-algorithm", "AWS4-HMAC-SHA256"]`
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// Add the date condition, only accept the current date.
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dateConditionStr := fmt.Sprintf(`["eq", "$x-amz-date", "%s"]`, t.Format(iso8601DateFormat))
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// Add the credential string, only accept the credential passed.
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credentialConditionStr := fmt.Sprintf(`["eq", "$x-amz-credential", "%s"]`, credential)
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// Combine all conditions into one string.
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conditionStr := fmt.Sprintf(`"conditions":[%s, %s, %s, %s, %s]`, bucketConditionStr, keyConditionStr, algorithmConditionStr, dateConditionStr, credentialConditionStr)
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retStr := "{"
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retStr = retStr + expirationStr + ","
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retStr = retStr + conditionStr
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retStr = retStr + "}"
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return []byte(retStr)
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}
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// newPostPolicyBytesV2 - creates a bare bones postpolicy string with key and bucket matches.
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func newPostPolicyBytesV2(bucketName, objectKey string, expiration time.Time) []byte {
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// Add the expiration date.
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expirationStr := fmt.Sprintf(`"expiration": "%s"`, expiration.Format(expirationDateFormat))
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// Add the bucket condition, only accept buckets equal to the one passed.
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bucketConditionStr := fmt.Sprintf(`["eq", "$bucket", "%s"]`, bucketName)
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// Add the key condition, only accept keys equal to the one passed.
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keyConditionStr := fmt.Sprintf(`["starts-with", "$key", "%s/upload.txt"]`, objectKey)
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// Combine all conditions into one string.
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conditionStr := fmt.Sprintf(`"conditions":[%s, %s]`, bucketConditionStr, keyConditionStr)
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retStr := "{"
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retStr = retStr + expirationStr + ","
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retStr = retStr + conditionStr
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retStr = retStr + "}"
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return []byte(retStr)
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}
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// Wrapper for calling TestPostPolicyBucketHandler tests for both XL multiple disks and single node setup.
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func TestPostPolicyBucketHandler(t *testing.T) {
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ExecObjectLayerTest(t, testPostPolicyBucketHandler)
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}
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// testPostPolicyBucketHandler - Tests validate post policy handler uploading objects.
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func testPostPolicyBucketHandler(obj ObjectLayer, instanceType string, t TestErrHandler) {
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root, err := newTestConfig("us-east-1")
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if err != nil {
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t.Fatalf("Initializing config.json failed")
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}
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defer removeAll(root)
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// Register event notifier.
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err = initEventNotifier(obj)
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if err != nil {
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t.Fatalf("Initializing event notifiers failed")
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}
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// get random bucket name.
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bucketName := getRandomBucketName()
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// Register the API end points with XL/FS object layer.
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apiRouter := initTestAPIEndPoints(obj, []string{"PostPolicy"})
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credentials := serverConfig.GetCredential()
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curTime := time.Now().UTC()
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curTimePlus5Min := curTime.Add(time.Minute * 5)
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// bucketnames[0].
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// objectNames[0].
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// uploadIds [0].
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// Create bucket before initiating NewMultipartUpload.
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err = obj.MakeBucket(bucketName)
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if err != nil {
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// Failed to create newbucket, abort.
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t.Fatalf("%s : %s", instanceType, err.Error())
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}
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// Test cases for signature-V2.
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testCasesV2 := []struct {
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expectedStatus int
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accessKey string
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secretKey string
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}{
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{http.StatusForbidden, "invalidaccesskey", credentials.SecretAccessKey},
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{http.StatusForbidden, credentials.AccessKeyID, "invalidsecretkey"},
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{http.StatusNoContent, credentials.AccessKeyID, credentials.SecretAccessKey},
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}
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for i, test := range testCasesV2 {
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// initialize HTTP NewRecorder, this records any mutations to response writer inside the handler.
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rec := httptest.NewRecorder()
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req, perr := newPostRequestV2("", bucketName, "testobject", test.accessKey, test.secretKey)
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if perr != nil {
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t.Fatalf("Test %d: %s: Failed to create HTTP request for PostPolicyHandler: <ERROR> %v", i+1, instanceType, perr)
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}
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// Since `apiRouter` satisfies `http.Handler` it has a ServeHTTP to execute the logic ofthe handler.
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// Call the ServeHTTP to execute the handler.
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apiRouter.ServeHTTP(rec, req)
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if rec.Code != test.expectedStatus {
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t.Fatalf("Test %d: %s: Expected the response status to be `%d`, but instead found `%d`", i+1, instanceType, test.expectedStatus, rec.Code)
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}
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}
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// Test cases for signature-V4.
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testCasesV4 := []struct {
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objectName string
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data []byte
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expectedRespStatus int
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accessKey string
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secretKey string
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malformedBody bool
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}{
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// Success case.
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{
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objectName: "test",
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data: []byte("Hello, World"),
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expectedRespStatus: http.StatusNoContent,
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accessKey: credentials.AccessKeyID,
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secretKey: credentials.SecretAccessKey,
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malformedBody: false,
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},
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// Bad case invalid request.
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{
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objectName: "test",
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data: []byte("Hello, World"),
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expectedRespStatus: http.StatusBadRequest,
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accessKey: "",
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secretKey: "",
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malformedBody: false,
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},
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// Bad case malformed input.
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{
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objectName: "test",
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data: []byte("Hello, World"),
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expectedRespStatus: http.StatusBadRequest,
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accessKey: credentials.AccessKeyID,
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secretKey: credentials.SecretAccessKey,
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malformedBody: true,
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},
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}
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for i, testCase := range testCasesV4 {
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// initialize HTTP NewRecorder, this records any mutations to response writer inside the handler.
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rec := httptest.NewRecorder()
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req, perr := newPostRequestV4("", bucketName, testCase.objectName, testCase.data, testCase.accessKey, testCase.secretKey)
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if perr != nil {
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t.Fatalf("Test %d: %s: Failed to create HTTP request for PostPolicyHandler: <ERROR> %v", i+1, instanceType, perr)
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}
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if testCase.malformedBody {
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// Change the request body.
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req.Body = ioutil.NopCloser(bytes.NewReader([]byte("Hello,")))
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}
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// Since `apiRouter` satisfies `http.Handler` it has a ServeHTTP to execute the logic ofthe handler.
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// Call the ServeHTTP to execute the handler.
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apiRouter.ServeHTTP(rec, req)
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if rec.Code != testCase.expectedRespStatus {
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t.Errorf("Test %d: %s: Expected the response status to be `%d`, but instead found `%d`", i+1, instanceType, testCase.expectedRespStatus, rec.Code)
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}
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}
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// Test cases for signature-V4.
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testCasesV4BadData := []struct {
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objectName string
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data []byte
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expectedRespStatus int
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accessKey string
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secretKey string
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dates []interface{}
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policy string
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corruptedBase64 bool
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corruptedMultipart bool
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}{
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// Success case.
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{
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objectName: "test",
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data: []byte("Hello, World"),
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expectedRespStatus: http.StatusNoContent,
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accessKey: credentials.AccessKeyID,
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secretKey: credentials.SecretAccessKey,
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dates: []interface{}{curTimePlus5Min.Format(expirationDateFormat), curTime.Format(iso8601DateFormat), curTime.Format(yyyymmdd)},
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policy: `{"expiration": "%s","conditions":[["eq", "$bucket", "` + bucketName + `"], ["starts-with", "$key", "test/"], ["eq", "$x-amz-algorithm", "AWS4-HMAC-SHA256"], ["eq", "$x-amz-date", "%s"], ["eq", "$x-amz-credential", "` + credentials.AccessKeyID + `/%s/us-east-1/s3/aws4_request"]]}`,
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},
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// Corrupted Base 64 result
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{
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objectName: "test",
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data: []byte("Hello, World"),
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expectedRespStatus: http.StatusBadRequest,
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accessKey: credentials.AccessKeyID,
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secretKey: credentials.SecretAccessKey,
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dates: []interface{}{curTimePlus5Min.Format(expirationDateFormat), curTime.Format(iso8601DateFormat), curTime.Format(yyyymmdd)},
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policy: `{"expiration": "%s","conditions":[["eq", "$bucket", "` + bucketName + `"], ["starts-with", "$key", "test/"], ["eq", "$x-amz-algorithm", "AWS4-HMAC-SHA256"], ["eq", "$x-amz-date", "%s"], ["eq", "$x-amz-credential", "` + credentials.AccessKeyID + `/%s/us-east-1/s3/aws4_request"]]}`,
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corruptedBase64: true,
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},
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// Corrupted Multipart body
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{
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objectName: "test",
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data: []byte("Hello, World"),
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expectedRespStatus: http.StatusBadRequest,
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accessKey: credentials.AccessKeyID,
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secretKey: credentials.SecretAccessKey,
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dates: []interface{}{curTimePlus5Min.Format(expirationDateFormat), curTime.Format(iso8601DateFormat), curTime.Format(yyyymmdd)},
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policy: `{"expiration": "%s","conditions":[["eq", "$bucket", "` + bucketName + `"], ["starts-with", "$key", "test/"], ["eq", "$x-amz-algorithm", "AWS4-HMAC-SHA256"], ["eq", "$x-amz-date", "%s"], ["eq", "$x-amz-credential", "` + credentials.AccessKeyID + `/%s/us-east-1/s3/aws4_request"]]}`,
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corruptedMultipart: true,
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},
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// Bad case invalid request.
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{
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objectName: "test",
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data: []byte("Hello, World"),
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expectedRespStatus: http.StatusBadRequest,
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accessKey: "",
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secretKey: "",
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dates: []interface{}{},
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policy: ``,
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},
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// Expired document
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{
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objectName: "test",
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data: []byte("Hello, World"),
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expectedRespStatus: http.StatusBadRequest,
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accessKey: credentials.AccessKeyID,
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secretKey: credentials.SecretAccessKey,
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dates: []interface{}{curTime.Add(-1 * time.Minute * 5).Format(expirationDateFormat), curTime.Format(iso8601DateFormat), curTime.Format(yyyymmdd)},
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policy: `{"expiration": "%s","conditions":[["eq", "$bucket", "` + bucketName + `"], ["starts-with", "$key", "test/"], ["eq", "$x-amz-algorithm", "AWS4-HMAC-SHA256"], ["eq", "$x-amz-date", "%s"], ["eq", "$x-amz-credential", "` + credentials.AccessKeyID + `/%s/us-east-1/s3/aws4_request"]]}`,
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},
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// Corrupted policy document
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{
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objectName: "test",
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data: []byte("Hello, World"),
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expectedRespStatus: http.StatusBadRequest,
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accessKey: credentials.AccessKeyID,
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secretKey: credentials.SecretAccessKey,
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dates: []interface{}{curTimePlus5Min.Format(expirationDateFormat), curTime.Format(iso8601DateFormat), curTime.Format(yyyymmdd)},
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policy: `{"3/aws4_request"]]}`,
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},
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}
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for i, testCase := range testCasesV4BadData {
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// initialize HTTP NewRecorder, this records any mutations to response writer inside the handler.
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rec := httptest.NewRecorder()
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// policy := buildGenericPolicy(curTime, testCase.accessKey, bucketName, testCase.objectName, false)
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testCase.policy = fmt.Sprintf(testCase.policy, testCase.dates...)
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req, perr := newPostRequestV4Generic("", bucketName, testCase.objectName, testCase.data, testCase.accessKey,
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testCase.secretKey, curTime, []byte(testCase.policy), testCase.corruptedBase64, testCase.corruptedMultipart)
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if perr != nil {
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t.Fatalf("Test %d: %s: Failed to create HTTP request for PostPolicyHandler: <ERROR> %v", i+1, instanceType, perr)
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}
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// Since `apiRouter` satisfies `http.Handler` it has a ServeHTTP to execute the logic ofthe handler.
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// Call the ServeHTTP to execute the handler.
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apiRouter.ServeHTTP(rec, req)
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if rec.Code != testCase.expectedRespStatus {
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t.Errorf("Test %d: %s: Expected the response status to be `%d`, but instead found `%d`", i+1, instanceType, testCase.expectedRespStatus, rec.Code)
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}
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}
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testCases2 := []struct {
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objectName string
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data []byte
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expectedRespStatus int
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accessKey string
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secretKey string
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malformedBody bool
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}{
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// Success case.
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{
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objectName: "test",
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data: bytes.Repeat([]byte("a"), 1025),
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expectedRespStatus: http.StatusNoContent,
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accessKey: credentials.AccessKeyID,
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secretKey: credentials.SecretAccessKey,
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malformedBody: false,
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},
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// Failed with entity too small.
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{
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objectName: "test",
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data: bytes.Repeat([]byte("a"), 1023),
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expectedRespStatus: http.StatusBadRequest,
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accessKey: credentials.AccessKeyID,
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secretKey: credentials.SecretAccessKey,
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malformedBody: false,
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},
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// Failed with entity too large.
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{
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objectName: "test",
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data: bytes.Repeat([]byte("a"), (1*humanize.MiByte)+1),
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expectedRespStatus: http.StatusBadRequest,
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accessKey: credentials.AccessKeyID,
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secretKey: credentials.SecretAccessKey,
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malformedBody: false,
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},
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}
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for i, testCase := range testCases2 {
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// initialize HTTP NewRecorder, this records any mutations to response writer inside the handler.
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rec := httptest.NewRecorder()
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req, perr := newPostRequestV4WithContentLength("", bucketName, testCase.objectName, testCase.data, testCase.accessKey, testCase.secretKey)
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if perr != nil {
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t.Fatalf("Test %d: %s: Failed to create HTTP request for PostPolicyHandler: <ERROR> %v", i+1, instanceType, perr)
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}
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// Since `apiRouter` satisfies `http.Handler` it has a ServeHTTP to execute the logic ofthe handler.
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// Call the ServeHTTP to execute the handler.
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apiRouter.ServeHTTP(rec, req)
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if rec.Code != testCase.expectedRespStatus {
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t.Errorf("Test %d: %s: Expected the response status to be `%d`, but instead found `%d`", i+1, instanceType, testCase.expectedRespStatus, rec.Code)
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}
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}
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}
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// postPresignSignatureV4 - presigned signature for PostPolicy requests.
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func postPresignSignatureV4(policyBase64 string, t time.Time, secretAccessKey, location string) string {
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// Get signining key.
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signingkey := getSigningKey(secretAccessKey, t, location)
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// Calculate signature.
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signature := getSignature(signingkey, policyBase64)
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return signature
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}
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func newPostRequestV2(endPoint, bucketName, objectName string, accessKey, secretKey string) (*http.Request, error) {
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// Expire the request five minutes from now.
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expirationTime := time.Now().UTC().Add(time.Minute * 5)
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// Create a new post policy.
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policy := newPostPolicyBytesV2(bucketName, objectName, expirationTime)
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// Only need the encoding.
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encodedPolicy := base64.StdEncoding.EncodeToString(policy)
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// Presign with V4 signature based on the policy.
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signature := calculateSignatureV2(encodedPolicy, secretKey)
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formData := map[string]string{
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"AWSAccessKeyId": accessKey,
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"bucket": bucketName,
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"key": objectName + "/${filename}",
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"policy": encodedPolicy,
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"signature": signature,
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}
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// Create the multipart form.
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var buf bytes.Buffer
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w := multipart.NewWriter(&buf)
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// Set the normal formData
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for k, v := range formData {
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w.WriteField(k, v)
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}
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// Set the File formData
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writer, err := w.CreateFormFile("file", "upload.txt")
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if err != nil {
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// return nil, err
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return nil, err
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}
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writer.Write([]byte("hello world"))
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// Close before creating the new request.
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w.Close()
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// Set the body equal to the created policy.
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reader := bytes.NewReader(buf.Bytes())
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req, err := http.NewRequest("POST", makeTestTargetURL(endPoint, bucketName, objectName, nil), reader)
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if err != nil {
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return nil, err
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}
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// Set form content-type.
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req.Header.Set("Content-Type", w.FormDataContentType())
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return req, nil
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}
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func buildGenericPolicy(t time.Time, accessKey, bucketName, objectName string, contentLengthRange bool) []byte {
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// Expire the request five minutes from now.
|
|
expirationTime := t.Add(time.Minute * 5)
|
|
|
|
credStr := getCredential(accessKey, serverConfig.GetRegion(), t)
|
|
// Create a new post policy.
|
|
policy := newPostPolicyBytesV4(credStr, bucketName, objectName, expirationTime)
|
|
if contentLengthRange {
|
|
policy = newPostPolicyBytesV4WithContentRange(credStr, bucketName, objectName, expirationTime)
|
|
}
|
|
return policy
|
|
}
|
|
|
|
func newPostRequestV4Generic(endPoint, bucketName, objectName string, objData []byte, accessKey, secretKey string, t time.Time, policy []byte, corruptedB64 bool, corruptedMultipart bool) (*http.Request, error) {
|
|
// Get the user credential.
|
|
credStr := getCredential(accessKey, serverConfig.GetRegion(), t)
|
|
|
|
// Only need the encoding.
|
|
encodedPolicy := base64.StdEncoding.EncodeToString(policy)
|
|
|
|
if corruptedB64 {
|
|
encodedPolicy = "%!~&" + encodedPolicy
|
|
}
|
|
|
|
// Presign with V4 signature based on the policy.
|
|
signature := postPresignSignatureV4(encodedPolicy, t, secretKey, serverConfig.GetRegion())
|
|
|
|
formData := map[string]string{
|
|
"bucket": bucketName,
|
|
"key": objectName + "/${filename}",
|
|
"x-amz-credential": credStr,
|
|
"policy": encodedPolicy,
|
|
"x-amz-signature": signature,
|
|
"x-amz-date": t.Format(iso8601DateFormat),
|
|
"x-amz-algorithm": "AWS4-HMAC-SHA256",
|
|
}
|
|
|
|
// Create the multipart form.
|
|
var buf bytes.Buffer
|
|
w := multipart.NewWriter(&buf)
|
|
|
|
// Set the normal formData
|
|
for k, v := range formData {
|
|
w.WriteField(k, v)
|
|
}
|
|
// Set the File formData but don't if we want send an incomplete multipart request
|
|
if !corruptedMultipart {
|
|
writer, err := w.CreateFormFile("file", "upload.txt")
|
|
if err != nil {
|
|
// return nil, err
|
|
return nil, err
|
|
}
|
|
writer.Write(objData)
|
|
// Close before creating the new request.
|
|
w.Close()
|
|
}
|
|
|
|
// Set the body equal to the created policy.
|
|
reader := bytes.NewReader(buf.Bytes())
|
|
|
|
req, err := http.NewRequest("POST", makeTestTargetURL(endPoint, bucketName, objectName, nil), reader)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Set form content-type.
|
|
req.Header.Set("Content-Type", w.FormDataContentType())
|
|
return req, nil
|
|
}
|
|
|
|
func newPostRequestV4WithContentLength(endPoint, bucketName, objectName string, objData []byte, accessKey, secretKey string) (*http.Request, error) {
|
|
t := time.Now().UTC()
|
|
policy := buildGenericPolicy(t, accessKey, bucketName, objectName, true)
|
|
return newPostRequestV4Generic(endPoint, bucketName, objectName, objData, accessKey, secretKey, t, policy, false, false)
|
|
}
|
|
|
|
func newPostRequestV4(endPoint, bucketName, objectName string, objData []byte, accessKey, secretKey string) (*http.Request, error) {
|
|
t := time.Now().UTC()
|
|
policy := buildGenericPolicy(t, accessKey, bucketName, objectName, false)
|
|
return newPostRequestV4Generic(endPoint, bucketName, objectName, objData, accessKey, secretKey, t, policy, false, false)
|
|
}
|
|
|