82 lines
1.8 KiB
Go
82 lines
1.8 KiB
Go
//go:build gofuzz
|
|
|
|
/*
|
|
Copyright The containerd Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package docker
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"io"
|
|
"net/http"
|
|
"net/http/httptest"
|
|
"net/url"
|
|
|
|
refDocker "github.com/containerd/containerd/reference/docker"
|
|
)
|
|
|
|
func FuzzFetcher(data []byte) int {
|
|
dataLen := len(data)
|
|
if dataLen == 0 {
|
|
return -1
|
|
}
|
|
|
|
s := httptest.NewServer(http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) {
|
|
rw.Header().Set("content-range", fmt.Sprintf("bytes %d-%d/%d", 0, dataLen-1, dataLen))
|
|
rw.Header().Set("content-length", fmt.Sprintf("%d", dataLen))
|
|
rw.Write(data)
|
|
}))
|
|
defer s.Close()
|
|
|
|
u, err := url.Parse(s.URL)
|
|
if err != nil {
|
|
return 0
|
|
}
|
|
|
|
f := dockerFetcher{&dockerBase{
|
|
repository: "nonempty",
|
|
}}
|
|
host := RegistryHost{
|
|
Client: s.Client(),
|
|
Host: u.Host,
|
|
Scheme: u.Scheme,
|
|
Path: u.Path,
|
|
}
|
|
|
|
ctx := context.Background()
|
|
req := f.request(host, http.MethodGet)
|
|
rc, err := f.open(ctx, req, "", 0)
|
|
if err != nil {
|
|
return 0
|
|
}
|
|
b, err := io.ReadAll(rc)
|
|
if err != nil {
|
|
return 0
|
|
}
|
|
|
|
expected := data
|
|
if len(b) != len(expected) {
|
|
panic("len of request is not equal to len of expected but should be")
|
|
}
|
|
return 1
|
|
}
|
|
|
|
func FuzzParseDockerRef(data []byte) int {
|
|
_, _ = refDocker.ParseDockerRef(string(data))
|
|
return 1
|
|
}
|