663 lines
26 KiB
Go
663 lines
26 KiB
Go
// Copyright (c) 2015-2021 MinIO, Inc.
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//
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// This file is part of MinIO Object Storage stack
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package cmd
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import (
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"bytes"
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"context"
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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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"net/url"
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"testing"
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"time"
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"github.com/dustin/go-humanize"
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)
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const (
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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 := UTCNow()
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// Add the expiration date.
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expirationStr := fmt.Sprintf(`"expiration": "%s"`, expiration.Format(iso8601TimeFormat))
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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", "$x-amz-credential", "%s"]`, credential)
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// Add the meta-uuid string, set to 1234
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uuidConditionStr := fmt.Sprintf(`["eq", "$x-amz-meta-uuid", "%s"]`, "1234")
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// Combine all conditions into one string.
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conditionStr := fmt.Sprintf(`"conditions":[%s, %s, %s, %s, %s, %s, %s]`, bucketConditionStr,
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keyConditionStr, contentLengthCondStr, algorithmConditionStr, dateConditionStr, credentialConditionStr, uuidConditionStr)
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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 := UTCNow()
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// Add the expiration date.
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expirationStr := fmt.Sprintf(`"expiration": "%s"`, expiration.Format(iso8601TimeFormat))
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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", "$x-amz-credential", "%s"]`, credential)
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// Add the meta-uuid string, set to 1234
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uuidConditionStr := fmt.Sprintf(`["eq", "$x-amz-meta-uuid", "%s"]`, "1234")
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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, keyConditionStr, algorithmConditionStr, dateConditionStr, credentialConditionStr, uuidConditionStr)
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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(iso8601TimeFormat))
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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 Erasure 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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if err := newTestConfig(globalMinioDefaultRegion, obj); err != nil {
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t.Fatalf("Initializing config.json failed")
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}
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// get random bucket name.
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bucketName := getRandomBucketName()
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var opts ObjectOptions
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// Register the API end points with Erasure/FS object layer.
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apiRouter := initTestAPIEndPoints(obj, []string{"PostPolicy"})
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credentials := globalActiveCred
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curTime := UTCNow()
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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.MakeBucketWithLocation(context.Background(), bucketName, BucketOptions{})
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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.SecretKey},
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{http.StatusForbidden, credentials.AccessKey, "invalidsecretkey"},
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{http.StatusNoContent, credentials.AccessKey, credentials.SecretKey},
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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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expectedHeaders map[string]string
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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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expectedHeaders: map[string]string{"X-Amz-Meta-Uuid": "1234"},
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accessKey: credentials.AccessKey,
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secretKey: credentials.SecretKey,
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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.StatusForbidden,
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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.AccessKey,
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secretKey: credentials.SecretKey,
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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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// When the operation is successful, check if sending metadata is successful too
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if rec.Code == http.StatusNoContent {
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objInfo, err := obj.GetObjectInfo(context.Background(), bucketName, testCase.objectName+"/upload.txt", opts)
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if err != nil {
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t.Error("Unexpected error: ", err)
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}
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for k, v := range testCase.expectedHeaders {
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if objInfo.UserDefined[k] != v {
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t.Errorf("Expected to have header %s with value %s, but found value `%s` instead", k, v, objInfo.UserDefined[k])
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}
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}
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}
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}
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region := "us-east-1"
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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.AccessKey,
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secretKey: credentials.SecretKey,
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dates: []interface{}{curTimePlus5Min.Format(iso8601TimeFormat), 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", "$x-amz-credential", "` + credentials.AccessKey + `/%s/us-east-1/s3/aws4_request"],["eq", "$x-amz-meta-uuid", "1234"]]}`,
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},
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// Success case, big body.
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{
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objectName: "test",
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data: bytes.Repeat([]byte("a"), 10<<20),
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expectedRespStatus: http.StatusNoContent,
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accessKey: credentials.AccessKey,
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secretKey: credentials.SecretKey,
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dates: []interface{}{curTimePlus5Min.Format(iso8601TimeFormat), 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", "$x-amz-credential", "` + credentials.AccessKey + `/%s/us-east-1/s3/aws4_request"],["eq", "$x-amz-meta-uuid", "1234"]]}`,
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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.AccessKey,
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secretKey: credentials.SecretKey,
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dates: []interface{}{curTimePlus5Min.Format(iso8601TimeFormat), 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", "$x-amz-credential", "` + credentials.AccessKey + `/%s/us-east-1/s3/aws4_request"]]}`,
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corruptedBase64: true,
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},
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// Corrupted Multipart body
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{
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objectName: "test",
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data: []byte("Hello, World"),
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expectedRespStatus: http.StatusBadRequest,
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accessKey: credentials.AccessKey,
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secretKey: credentials.SecretKey,
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dates: []interface{}{curTimePlus5Min.Format(iso8601TimeFormat), curTime.Format(iso8601DateFormat), curTime.Format(yyyymmdd)},
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policy: `{"expiration": "%s","conditions":[["eq", "$bucket", "` + bucketName + `"], ["starts-with", "$key", "test/"], ["eq", "$x-amz-algorithm", "AWS4-HMAC-SHA256"], ["eq", "$x-amz-date", "%s"], ["eq", "$x-amz-credential", "` + credentials.AccessKey + `/%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.StatusForbidden,
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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.StatusForbidden,
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accessKey: credentials.AccessKey,
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secretKey: credentials.SecretKey,
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dates: []interface{}{curTime.Add(-1 * time.Minute * 5).Format(iso8601TimeFormat), 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.AccessKey + `/%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.StatusForbidden,
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accessKey: credentials.AccessKey,
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secretKey: credentials.SecretKey,
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dates: []interface{}{curTimePlus5Min.Format(iso8601TimeFormat), 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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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, region, curTime, []byte(testCase.policy), nil, 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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ignoreContentLength 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.AccessKey,
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secretKey: credentials.SecretKey,
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malformedBody: false,
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ignoreContentLength: false,
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},
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// Failed with Content-Length not specified.
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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.AccessKey,
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secretKey: credentials.SecretKey,
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malformedBody: false,
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ignoreContentLength: true,
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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.AccessKey,
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secretKey: credentials.SecretKey,
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malformedBody: false,
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ignoreContentLength: 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.AccessKey,
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secretKey: credentials.SecretKey,
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malformedBody: false,
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ignoreContentLength: 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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var req *http.Request
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var perr error
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if testCase.ignoreContentLength {
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req, perr = newPostRequestV4("", bucketName, testCase.objectName, testCase.data, testCase.accessKey, testCase.secretKey)
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} else {
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req, perr = newPostRequestV4WithContentLength("", bucketName, testCase.objectName, testCase.data, testCase.accessKey, testCase.secretKey)
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}
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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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|
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// Wrapper for calling TestPostPolicyBucketHandlerRedirect tests for both Erasure multiple disks and single node setup.
|
|
func TestPostPolicyBucketHandlerRedirect(t *testing.T) {
|
|
ExecObjectLayerTest(t, testPostPolicyBucketHandlerRedirect)
|
|
}
|
|
|
|
// testPostPolicyBucketHandlerRedirect tests POST Object when success_action_redirect is specified
|
|
func testPostPolicyBucketHandlerRedirect(obj ObjectLayer, instanceType string, t TestErrHandler) {
|
|
if err := newTestConfig(globalMinioDefaultRegion, obj); err != nil {
|
|
t.Fatalf("Initializing config.json failed")
|
|
}
|
|
|
|
// get random bucket name.
|
|
bucketName := getRandomBucketName()
|
|
|
|
// Key specified in Form data
|
|
keyName := "test/object"
|
|
|
|
var opts ObjectOptions
|
|
|
|
// The final name of the upload object
|
|
targetObj := keyName + "/upload.txt"
|
|
|
|
// The url of success_action_redirect field
|
|
redirectURL, err := url.Parse("http://www.google.com")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
// Register the API end points with Erasure/FS object layer.
|
|
apiRouter := initTestAPIEndPoints(obj, []string{"PostPolicy"})
|
|
|
|
credentials := globalActiveCred
|
|
|
|
curTime := UTCNow()
|
|
curTimePlus5Min := curTime.Add(time.Minute * 5)
|
|
|
|
err = obj.MakeBucketWithLocation(context.Background(), bucketName, BucketOptions{})
|
|
if err != nil {
|
|
// Failed to create newbucket, abort.
|
|
t.Fatalf("%s : %s", instanceType, err.Error())
|
|
}
|
|
|
|
// initialize HTTP NewRecorder, this records any mutations to response writer inside the handler.
|
|
rec := httptest.NewRecorder()
|
|
|
|
dates := []interface{}{curTimePlus5Min.Format(iso8601TimeFormat), curTime.Format(iso8601DateFormat), curTime.Format(yyyymmdd)}
|
|
policy := `{"expiration": "%s","conditions":[["eq", "$bucket", "` + bucketName + `"], {"success_action_redirect":"` + redirectURL.String() + `"},["starts-with", "$key", "test/"], ["eq", "$x-amz-meta-uuid", "1234"], ["eq", "$x-amz-algorithm", "AWS4-HMAC-SHA256"], ["eq", "$x-amz-date", "%s"], ["eq", "$x-amz-credential", "` + credentials.AccessKey + `/%s/us-east-1/s3/aws4_request"]]}`
|
|
|
|
// Generate the final policy document
|
|
policy = fmt.Sprintf(policy, dates...)
|
|
|
|
region := "us-east-1"
|
|
// Create a new POST request with success_action_redirect field specified
|
|
req, perr := newPostRequestV4Generic("", bucketName, keyName, []byte("objData"),
|
|
credentials.AccessKey, credentials.SecretKey, region, curTime,
|
|
[]byte(policy), map[string]string{"success_action_redirect": redirectURL.String()}, false, false)
|
|
|
|
if perr != nil {
|
|
t.Fatalf("%s: Failed to create HTTP request for PostPolicyHandler: <ERROR> %v", instanceType, perr)
|
|
}
|
|
// Since `apiRouter` satisfies `http.Handler` it has a ServeHTTP to execute the logic ofthe handler.
|
|
// Call the ServeHTTP to execute the handler.
|
|
apiRouter.ServeHTTP(rec, req)
|
|
|
|
// Check the status code, which must be 303 because success_action_redirect is specified
|
|
if rec.Code != http.StatusSeeOther {
|
|
t.Errorf("%s: Expected the response status to be `%d`, but instead found `%d`", instanceType, http.StatusSeeOther, rec.Code)
|
|
}
|
|
|
|
// Get the uploaded object info
|
|
info, err := obj.GetObjectInfo(context.Background(), bucketName, targetObj, opts)
|
|
if err != nil {
|
|
t.Error("Unexpected error: ", err)
|
|
}
|
|
|
|
redirectURL.RawQuery = getRedirectPostRawQuery(info)
|
|
expectedLocation := redirectURL.String()
|
|
|
|
// Check the new location url
|
|
if rec.Header().Get("Location") != expectedLocation {
|
|
t.Errorf("Unexpected location, expected = %s, found = `%s`", rec.Header().Get("Location"), expectedLocation)
|
|
}
|
|
|
|
}
|
|
|
|
// postPresignSignatureV4 - presigned signature for PostPolicy requests.
|
|
func postPresignSignatureV4(policyBase64 string, t time.Time, secretAccessKey, location string) string {
|
|
// Get signining key.
|
|
signingkey := getSigningKey(secretAccessKey, t, location, "s3")
|
|
// Calculate signature.
|
|
signature := getSignature(signingkey, policyBase64)
|
|
return signature
|
|
}
|
|
|
|
func newPostRequestV2(endPoint, bucketName, objectName string, accessKey, secretKey string) (*http.Request, error) {
|
|
// Expire the request five minutes from now.
|
|
expirationTime := UTCNow().Add(time.Minute * 5)
|
|
// Create a new post policy.
|
|
policy := newPostPolicyBytesV2(bucketName, objectName, expirationTime)
|
|
// Only need the encoding.
|
|
encodedPolicy := base64.StdEncoding.EncodeToString(policy)
|
|
|
|
// Presign with V4 signature based on the policy.
|
|
signature := calculateSignatureV2(encodedPolicy, secretKey)
|
|
|
|
formData := map[string]string{
|
|
"AWSAccessKeyId": accessKey,
|
|
"bucket": bucketName,
|
|
"key": objectName + "/${filename}",
|
|
"policy": encodedPolicy,
|
|
"signature": signature,
|
|
}
|
|
|
|
// 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
|
|
writer, err := w.CreateFormFile("file", "upload.txt")
|
|
if err != nil {
|
|
// return nil, err
|
|
return nil, err
|
|
}
|
|
writer.Write([]byte("hello world"))
|
|
// 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(http.MethodPost, makeTestTargetURL(endPoint, bucketName, "", nil), reader)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Set form content-type.
|
|
req.Header.Set("Content-Type", w.FormDataContentType())
|
|
return req, nil
|
|
}
|
|
|
|
func buildGenericPolicy(t time.Time, accessKey, region, bucketName, objectName string, contentLengthRange bool) []byte {
|
|
// Expire the request five minutes from now.
|
|
expirationTime := t.Add(time.Minute * 5)
|
|
|
|
credStr := getCredentialString(accessKey, region, 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, region string,
|
|
t time.Time, policy []byte, addFormData map[string]string, corruptedB64 bool, corruptedMultipart bool) (*http.Request, error) {
|
|
// Get the user credential.
|
|
credStr := getCredentialString(accessKey, region, 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, region)
|
|
|
|
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",
|
|
"x-amz-meta-uuid": "1234",
|
|
"Content-Encoding": "gzip",
|
|
}
|
|
|
|
// Add form data
|
|
for k, v := range addFormData {
|
|
formData[k] = v
|
|
}
|
|
|
|
// 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(http.MethodPost, makeTestTargetURL(endPoint, bucketName, "", 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 := UTCNow()
|
|
region := "us-east-1"
|
|
policy := buildGenericPolicy(t, accessKey, region, bucketName, objectName, true)
|
|
return newPostRequestV4Generic(endPoint, bucketName, objectName, objData, accessKey, secretKey, region, t, policy, nil, false, false)
|
|
}
|
|
|
|
func newPostRequestV4(endPoint, bucketName, objectName string, objData []byte, accessKey, secretKey string) (*http.Request, error) {
|
|
t := UTCNow()
|
|
region := "us-east-1"
|
|
policy := buildGenericPolicy(t, accessKey, region, bucketName, objectName, false)
|
|
return newPostRequestV4Generic(endPoint, bucketName, objectName, objData, accessKey, secretKey, region, t, policy, nil, false, false)
|
|
}
|