145 lines
3.9 KiB
Go
145 lines
3.9 KiB
Go
package crypt
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import (
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"bytes"
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"context"
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"crypto/md5"
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"fmt"
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"io"
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"testing"
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"time"
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"github.com/rclone/rclone/fs"
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"github.com/rclone/rclone/fs/hash"
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"github.com/rclone/rclone/fs/object"
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"github.com/rclone/rclone/lib/random"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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type testWrapper struct {
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fs.ObjectInfo
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}
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// UnWrap returns the Object that this Object is wrapping or nil if it
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// isn't wrapping anything
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func (o testWrapper) UnWrap() fs.Object {
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if o, ok := o.ObjectInfo.(fs.Object); ok {
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return o
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}
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return nil
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}
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// Create a temporary local fs to upload things from
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func makeTempLocalFs(t *testing.T) (localFs fs.Fs, cleanup func()) {
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localFs, err := fs.TemporaryLocalFs(context.Background())
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require.NoError(t, err)
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cleanup = func() {
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require.NoError(t, localFs.Rmdir(context.Background(), ""))
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}
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return localFs, cleanup
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}
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// Upload a file to a remote
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func uploadFile(t *testing.T, f fs.Fs, remote, contents string) (obj fs.Object, cleanup func()) {
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inBuf := bytes.NewBufferString(contents)
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t1 := time.Date(2012, time.December, 17, 18, 32, 31, 0, time.UTC)
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upSrc := object.NewStaticObjectInfo(remote, t1, int64(len(contents)), true, nil, nil)
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obj, err := f.Put(context.Background(), inBuf, upSrc)
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require.NoError(t, err)
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cleanup = func() {
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require.NoError(t, obj.Remove(context.Background()))
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}
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return obj, cleanup
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}
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// Test the ObjectInfo
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func testObjectInfo(t *testing.T, f *Fs, wrap bool) {
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var (
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contents = random.String(100)
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path = "hash_test_object"
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ctx = context.Background()
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)
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if wrap {
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path = "_wrap"
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}
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localFs, cleanupLocalFs := makeTempLocalFs(t)
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defer cleanupLocalFs()
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obj, cleanupObj := uploadFile(t, localFs, path, contents)
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defer cleanupObj()
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// encrypt the data
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inBuf := bytes.NewBufferString(contents)
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var outBuf bytes.Buffer
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enc, err := f.cipher.newEncrypter(inBuf, nil)
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require.NoError(t, err)
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nonce := enc.nonce // read the nonce at the start
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_, err = io.Copy(&outBuf, enc)
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require.NoError(t, err)
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var oi fs.ObjectInfo = obj
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if wrap {
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// wrap the object in an fs.ObjectUnwrapper if required
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oi = testWrapper{oi}
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}
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// wrap the object in a crypt for upload using the nonce we
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// saved from the encrypter
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src := f.newObjectInfo(oi, nonce)
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// Test ObjectInfo methods
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if !f.opt.NoDataEncryption {
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assert.Equal(t, int64(outBuf.Len()), src.Size())
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}
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assert.Equal(t, f, src.Fs())
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assert.NotEqual(t, path, src.Remote())
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// Test ObjectInfo.Hash
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wantHash := md5.Sum(outBuf.Bytes())
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gotHash, err := src.Hash(ctx, hash.MD5)
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require.NoError(t, err)
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assert.Equal(t, fmt.Sprintf("%x", wantHash), gotHash)
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}
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func testComputeHash(t *testing.T, f *Fs) {
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var (
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contents = random.String(100)
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path = "compute_hash_test"
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ctx = context.Background()
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hashType = f.Fs.Hashes().GetOne()
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)
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if hashType == hash.None {
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t.Skipf("%v: does not support hashes", f.Fs)
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}
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localFs, cleanupLocalFs := makeTempLocalFs(t)
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defer cleanupLocalFs()
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// Upload a file to localFs as a test object
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localObj, cleanupLocalObj := uploadFile(t, localFs, path, contents)
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defer cleanupLocalObj()
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// Upload the same data to the remote Fs also
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remoteObj, cleanupRemoteObj := uploadFile(t, f, path, contents)
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defer cleanupRemoteObj()
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// Calculate the expected Hash of the remote object
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computedHash, err := f.ComputeHash(ctx, remoteObj.(*Object), localObj, hashType)
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require.NoError(t, err)
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// Test computed hash matches remote object hash
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remoteObjHash, err := remoteObj.(*Object).Object.Hash(ctx, hashType)
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require.NoError(t, err)
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assert.Equal(t, remoteObjHash, computedHash)
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}
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// InternalTest is called by fstests.Run to extra tests
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func (f *Fs) InternalTest(t *testing.T) {
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t.Run("ObjectInfo", func(t *testing.T) { testObjectInfo(t, f, false) })
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t.Run("ObjectInfoWrap", func(t *testing.T) { testObjectInfo(t, f, true) })
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t.Run("ComputeHash", func(t *testing.T) { testComputeHash(t, f) })
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}
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