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1366408baa
As described in https://docs.aws.amazon.com/AmazonS3/latest/API/sigv4-streaming.html this adds support for reading from a chunked upload encoded request body. The chunked reader modifies the data stream to remove the chunk encoding while validating the chunk signatures in line. This allows the upper layers to get just the object data stream.
57 lines
1.6 KiB
Go
57 lines
1.6 KiB
Go
// Copyright 2023 Versity Software
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// This file is licensed under the Apache License, Version 2.0
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// (the "License"); you may not use this file except in compliance
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// with the License. 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,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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package middlewares
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import (
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"crypto/md5"
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"io"
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"github.com/gofiber/fiber/v2"
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"github.com/versity/versitygw/s3api/controllers"
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"github.com/versity/versitygw/s3api/utils"
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"github.com/versity/versitygw/s3err"
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"github.com/versity/versitygw/s3log"
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)
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func VerifyMD5Body(logger s3log.AuditLogger) fiber.Handler {
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return func(ctx *fiber.Ctx) error {
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incomingSum := ctx.Get("Content-Md5")
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if incomingSum == "" {
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return ctx.Next()
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}
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if utils.IsBigDataAction(ctx) {
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var err error
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wrapBodyReader(ctx, func(r io.Reader) io.Reader {
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r, err = utils.NewHashReader(r, incomingSum, utils.HashTypeMd5)
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return r
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})
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if err != nil {
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return controllers.SendResponse(ctx, err, &controllers.MetaOpts{Logger: logger})
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}
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return ctx.Next()
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}
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sum := md5.Sum(ctx.Body())
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calculatedSum := utils.Md5SumString(sum[:])
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if incomingSum != calculatedSum {
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return controllers.SendResponse(ctx, s3err.GetAPIError(s3err.ErrInvalidDigest), &controllers.MetaOpts{Logger: logger})
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}
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return ctx.Next()
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}
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}
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