155 lines
4.7 KiB
Go
155 lines
4.7 KiB
Go
// Copyright (c) All respective contributors to the Peridot Project. All rights reserved.
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// Copyright (c) 2021-2022 Rocky Enterprise Software Foundation, Inc. All rights reserved.
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// Copyright (c) 2021-2022 Ctrl IQ, Inc. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors
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// may be used to endorse or promote products derived from this software without
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// specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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package yumrepofsv1
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import (
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"bytes"
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"compress/gzip"
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"context"
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"encoding/base64"
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"fmt"
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"github.com/aws/aws-sdk-go/aws"
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"github.com/aws/aws-sdk-go/service/s3"
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"github.com/spf13/viper"
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"google.golang.org/genproto/googleapis/api/httpbody"
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"google.golang.org/grpc"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/metadata"
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"google.golang.org/grpc/status"
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"io/ioutil"
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yumrepofspb "peridot.resf.org/peridot/yumrepofs/pb"
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"peridot.resf.org/utils"
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"regexp"
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"strings"
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"time"
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)
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var (
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ErrCouldNotFindRevision = status.Error(codes.NotFound, "revision not found")
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ErrInvalidBlob = status.Error(codes.InvalidArgument, "invalid blob given")
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RegexBlob = regexp.MustCompile(`^(.+)-(.+)(\.xml|\.xml\.gz|\.yaml|\.yaml\.gz)$`)
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)
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func (s *Server) GetBlob(ctx context.Context, req *yumrepofspb.GetBlobRequest) (*httpbody.HttpBody, error) {
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if err := req.ValidateAll(); err != nil {
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return nil, err
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}
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if req.Arch == "i386" {
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req.Arch = "i686"
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}
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if strings.HasSuffix(req.Blob, ".sqlite.gz") {
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s3Req, _ := s.s3.GetObjectRequest(&s3.GetObjectInput{
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Bucket: aws.String(viper.GetString("s3-bucket")),
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Key: utils.StringP(fmt.Sprintf("sqlite-files/%s", req.Blob)),
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})
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urlStr, err := s3Req.Presign(24 * time.Hour)
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if err != nil {
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s.log.Errorf("failed to presign s3 request: %v", err)
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return nil, status.Error(codes.Internal, "failed to presign s3 request")
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}
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header := metadata.Pairs("Location", urlStr)
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err = grpc.SetHeader(ctx, header)
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if err != nil {
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s.log.Errorf("failed to send header: %v", err)
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return nil, status.Error(codes.Internal, "failed to send header")
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}
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return &httpbody.HttpBody{
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ContentType: "text/plain",
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Data: []byte(fmt.Sprintf("Redirecting to %s", urlStr)),
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}, nil
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}
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if !RegexBlob.MatchString(req.Blob) {
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return nil, ErrInvalidBlob
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}
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blob := RegexBlob.FindStringSubmatch(req.Blob)
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revision, err := s.db.GetRepositoryRevision(blob[1])
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if err != nil {
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return nil, ErrCouldNotFindRevision
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}
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var dataB64 string
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switch blob[2] {
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case "PRIMARY":
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dataB64 = revision.PrimaryXml
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case "FILELISTS":
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dataB64 = revision.FilelistsXml
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case "OTHER":
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dataB64 = revision.OtherXml
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case "GROUPS":
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dataB64 = revision.GroupsXml
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case "MODULES":
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dataB64 = revision.ModulesYaml
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case "UPDATEINFO":
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dataB64 = revision.UpdateinfoXml
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default:
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return nil, ErrInvalidBlob
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}
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contentType := "application/xml+gzip"
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data, err := base64.StdEncoding.DecodeString(dataB64)
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if err != nil {
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return nil, err
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}
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if blob[3] == ".yaml.gz" {
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contentType = "text/yaml+gzip"
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}
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if blob[3] == ".xml" || blob[3] == ".yaml" {
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contentType = "application/xml"
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if blob[3] == ".yaml" {
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contentType = "text/yaml"
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}
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var buf bytes.Buffer
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buf.Write(data)
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r, err := gzip.NewReader(&buf)
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if err != nil {
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return nil, utils.InternalError
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}
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data, err = ioutil.ReadAll(r)
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if err != nil {
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return nil, utils.InternalError
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}
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}
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return &httpbody.HttpBody{
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ContentType: contentType,
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Data: data,
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}, nil
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}
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