mirror of
https://github.com/versity/versitygw.git
synced 2026-01-08 12:41:10 +00:00
134 lines
3.4 KiB
Go
134 lines
3.4 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 utils
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import (
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"bytes"
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"errors"
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"fmt"
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"net/http"
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"regexp"
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"strconv"
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"strings"
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"github.com/gofiber/fiber/v2"
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"github.com/valyala/fasthttp"
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"github.com/versity/versitygw/s3err"
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)
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var (
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bucketNameRegexp = regexp.MustCompile(`^[a-z0-9][a-z0-9.-]+[a-z0-9]$`)
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bucketNameIpRegexp = regexp.MustCompile(`^(?:[0-9]{1,3}\.){3}[0-9]{1,3}$`)
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)
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func GetUserMetaData(headers *fasthttp.RequestHeader) (metadata map[string]string) {
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metadata = make(map[string]string)
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headers.DisableNormalizing()
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headers.VisitAllInOrder(func(key, value []byte) {
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hKey := string(key)
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if strings.HasPrefix(strings.ToLower(hKey), "x-amz-meta-") {
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trimmedKey := hKey[11:]
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headerValue := string(value)
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metadata[trimmedKey] = headerValue
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}
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})
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headers.EnableNormalizing()
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return
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}
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func CreateHttpRequestFromCtx(ctx *fiber.Ctx, signedHdrs []string) (*http.Request, error) {
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req := ctx.Request()
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httpReq, err := http.NewRequest(string(req.Header.Method()), string(ctx.Context().RequestURI()), bytes.NewReader(req.Body()))
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if err != nil {
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return nil, errors.New("error in creating an http request")
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}
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// Set the request headers
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req.Header.VisitAll(func(key, value []byte) {
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keyStr := string(key)
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if includeHeader(keyStr, signedHdrs) {
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httpReq.Header.Add(keyStr, string(value))
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}
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})
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// Check if Content-Length in signed headers
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// If content length is non 0, then the header will be included
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if !includeHeader("Content-Length", signedHdrs) {
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httpReq.ContentLength = 0
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}
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// Set the Host header
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httpReq.Host = string(req.Header.Host())
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return httpReq, nil
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}
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func SetMetaHeaders(ctx *fiber.Ctx, meta map[string]string) {
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ctx.Response().Header.DisableNormalizing()
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for key, val := range meta {
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ctx.Response().Header.Set(fmt.Sprintf("X-Amz-Meta-%s", key), val)
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}
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ctx.Response().Header.EnableNormalizing()
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}
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func ParseUint(str string) (int32, error) {
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if str == "" {
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return 1000, nil
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}
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num, err := strconv.ParseUint(str, 10, 16)
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if err != nil {
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return 1000, s3err.GetAPIError(s3err.ErrInvalidMaxKeys)
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}
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return int32(num), nil
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}
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type CustomHeader struct {
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Key string
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Value string
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}
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func SetResponseHeaders(ctx *fiber.Ctx, headers []CustomHeader) {
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for _, header := range headers {
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ctx.Set(header.Key, header.Value)
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}
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}
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func IsValidBucketName(bucket string) bool {
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if len(bucket) < 3 || len(bucket) > 63 {
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return false
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}
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// Checks to contain only digits, lowercase letters, dot, hyphen.
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// Checks to start and end with only digits and lowercase letters.
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if !bucketNameRegexp.MatchString(bucket) {
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return false
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}
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// Checks not to be a valid IP address
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if bucketNameIpRegexp.MatchString(bucket) {
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return false
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}
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return true
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}
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func includeHeader(hdr string, signedHdrs []string) bool {
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for _, shdr := range signedHdrs {
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if strings.EqualFold(hdr, shdr) {
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return true
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}
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}
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return false
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}
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