diff --git a/go.mod b/go.mod index 5b57bb2..a1e64ff 100644 --- a/go.mod +++ b/go.mod @@ -6,15 +6,18 @@ toolchain go1.23.3 require ( github.com/getlantern/systray v1.2.2 + github.com/go-git/go-billy/v5 v5.6.0 github.com/kardianos/service v1.2.2 github.com/mattn/go-sqlite3 v1.14.24 github.com/mxk/go-vss v1.2.0 github.com/pkg/sftp v1.13.7 + github.com/willscott/go-nfs v0.0.2 golang.org/x/crypto v0.28.0 golang.org/x/sys v0.26.0 ) require ( + github.com/cyphar/filepath-securejoin v0.2.5 // indirect github.com/getlantern/context v0.0.0-20190109183933-c447772a6520 // indirect github.com/getlantern/errors v0.0.0-20190325191628-abdb3e3e36f7 // indirect github.com/getlantern/golog v0.0.0-20190830074920-4ef2e798c2d7 // indirect @@ -23,7 +26,10 @@ require ( github.com/getlantern/ops v0.0.0-20190325191751-d70cb0d6f85f // indirect github.com/go-ole/go-ole v1.3.0 // indirect github.com/go-stack/stack v1.8.0 // indirect + github.com/google/uuid v1.5.0 // indirect + github.com/hashicorp/golang-lru/v2 v2.0.7 // indirect github.com/kr/fs v0.1.0 // indirect github.com/oxtoacart/bpool v0.0.0-20190530202638-03653db5a59c // indirect - github.com/stretchr/testify v1.9.0 // indirect + github.com/rasky/go-xdr v0.0.0-20170124162913-1a41d1a06c93 // indirect + github.com/willscott/go-nfs-client v0.0.0-20240104095149-b44639837b00 // indirect ) diff --git a/go.sum b/go.sum index 0b74ad0..e600884 100644 --- a/go.sum +++ b/go.sum @@ -1,3 +1,5 @@ +github.com/cyphar/filepath-securejoin v0.2.5 h1:6iR5tXJ/e6tJZzzdMc1km3Sa7RRIVBKAK32O2s7AYfo= +github.com/cyphar/filepath-securejoin v0.2.5/go.mod h1:aPGpWjXOXUn2NCNjFvBE6aRxGGx79pTxQpKOJNYHHl4= github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= @@ -15,26 +17,44 @@ github.com/getlantern/ops v0.0.0-20190325191751-d70cb0d6f85f h1:wrYrQttPS8FHIRSl github.com/getlantern/ops v0.0.0-20190325191751-d70cb0d6f85f/go.mod h1:D5ao98qkA6pxftxoqzibIBBrLSUli+kYnJqrgBf9cIA= github.com/getlantern/systray v1.2.2 h1:dCEHtfmvkJG7HZ8lS/sLklTH4RKUcIsKrAD9sThoEBE= github.com/getlantern/systray v1.2.2/go.mod h1:pXFOI1wwqwYXEhLPm9ZGjS2u/vVELeIgNMY5HvhHhcE= +github.com/go-git/go-billy/v5 v5.6.0 h1:w2hPNtoehvJIxR00Vb4xX94qHQi/ApZfX+nBE2Cjio8= +github.com/go-git/go-billy/v5 v5.6.0/go.mod h1:sFDq7xD3fn3E0GOwUSZqHo9lrkmx8xJhA0ZrfvjBRGM= github.com/go-ole/go-ole v1.3.0 h1:Dt6ye7+vXGIKZ7Xtk4s6/xVdGDQynvom7xCFEdWr6uE= github.com/go-ole/go-ole v1.3.0/go.mod h1:5LS6F96DhAwUc7C+1HLexzMXY1xGRSryjyPPKW6zv78= github.com/go-stack/stack v1.8.0 h1:5SgMzNM5HxrEjV0ww2lTmX6E2Izsfxas4+YHWRs3Lsk= github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY= +github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI= +github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY= +github.com/google/uuid v1.5.0 h1:1p67kYwdtXjb0gL0BPiP1Av9wiZPo5A8z2cWkTZ+eyU= +github.com/google/uuid v1.5.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo= +github.com/hashicorp/golang-lru/v2 v2.0.7 h1:a+bsQ5rvGLjzHuww6tVxozPZFVghXaHOwFs4luLUK2k= +github.com/hashicorp/golang-lru/v2 v2.0.7/go.mod h1:QeFd9opnmA6QUJc5vARoKUSoFhyfM2/ZepoAG6RGpeM= github.com/kardianos/service v1.2.2 h1:ZvePhAHfvo0A7Mftk/tEzqEZ7Q4lgnR8sGz4xu1YX60= github.com/kardianos/service v1.2.2/go.mod h1:CIMRFEJVL+0DS1a3Nx06NaMn4Dz63Ng6O7dl0qH0zVM= github.com/kr/fs v0.1.0 h1:Jskdu9ieNAYnjxsi0LbQp1ulIKZV1LAFgK1tWhpZgl8= github.com/kr/fs v0.1.0/go.mod h1:FFnZGqtBN9Gxj7eW1uZ42v5BccTP0vu6NEaFoC2HwRg= +github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE= +github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk= +github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY= +github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE= github.com/lxn/walk v0.0.0-20210112085537-c389da54e794/go.mod h1:E23UucZGqpuUANJooIbHWCufXvOcT6E7Stq81gU+CSQ= github.com/lxn/win v0.0.0-20210218163916-a377121e959e/go.mod h1:KxxjdtRkfNoYDCUP5ryK7XJJNTnpC8atvtmTheChOtk= github.com/mattn/go-sqlite3 v1.14.24 h1:tpSp2G2KyMnnQu99ngJ47EIkWVmliIizyZBfPrBWDRM= github.com/mattn/go-sqlite3 v1.14.24/go.mod h1:Uh1q+B4BYcTPb+yiD3kU8Ct7aC0hY9fxUwlHK0RXw+Y= github.com/mxk/go-vss v1.2.0 h1:JpdOPc/P6B3XyRoddn0iMiG/ADBi3AuEsv8RlTb+JeE= github.com/mxk/go-vss v1.2.0/go.mod h1:ZQ4yFxCG54vqPnCd+p2IxAe5jwZdz56wSjbwzBXiFd8= +github.com/onsi/gomega v1.34.1 h1:EUMJIKUjM8sKjYbtxQI9A4z2o+rruxnzNvpknOXie6k= +github.com/onsi/gomega v1.34.1/go.mod h1:kU1QgUvBDLXBJq618Xvm2LUX6rSAfRaFRTcdOeDLwwY= github.com/oxtoacart/bpool v0.0.0-20190530202638-03653db5a59c h1:rp5dCmg/yLR3mgFuSOe4oEnDDmGLROTvMragMUXpTQw= github.com/oxtoacart/bpool v0.0.0-20190530202638-03653db5a59c/go.mod h1:X07ZCGwUbLaax7L0S3Tw4hpejzu63ZrrQiUe6W0hcy0= github.com/pkg/sftp v1.13.7 h1:uv+I3nNJvlKZIQGSr8JVQLNHFU9YhhNpvC14Y6KgmSM= github.com/pkg/sftp v1.13.7/go.mod h1:KMKI0t3T6hfA+lTR/ssZdunHo+uwq7ghoN09/FSu3DY= github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM= github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= +github.com/rasky/go-xdr v0.0.0-20170124162913-1a41d1a06c93 h1:UVArwN/wkKjMVhh2EQGC0tEc1+FqiLlvYXY5mQ2f8Wg= +github.com/rasky/go-xdr v0.0.0-20170124162913-1a41d1a06c93/go.mod h1:Nfe4efndBz4TibWycNE+lqyJZiMX4ycx+QKV8Ta0f/o= +github.com/rogpeppe/go-internal v1.11.0 h1:cWPaGQEPrBb5/AsnsZesgZZ9yb1OQ+GOISoDNXVBh4M= +github.com/rogpeppe/go-internal v1.11.0/go.mod h1:ddIwULY96R17DhadqLgMfk9H9tvdUzkipdSkR5nkCZA= github.com/skratchdot/open-golang v0.0.0-20200116055534-eef842397966/go.mod h1:sUM3LWHvSMaG192sy56D9F7CNvL7jUJVXoqM1QKLnog= github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw= @@ -43,12 +63,18 @@ github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/ github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU= github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg= github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY= +github.com/willscott/go-nfs v0.0.2 h1:BaBp1CpGDMooCT6bCgX6h6ZwgPcTMST4yToYZ9byee0= +github.com/willscott/go-nfs v0.0.2/go.mod h1:SvullWeHxr/924WQNbUaZqtluBt2vuZ61g6yAV+xj7w= +github.com/willscott/go-nfs-client v0.0.0-20240104095149-b44639837b00 h1:U0DnHRZFzoIV1oFEZczg5XyPut9yxk9jjtax/9Bxr/o= +github.com/willscott/go-nfs-client v0.0.0-20240104095149-b44639837b00/go.mod h1:Tq++Lr/FgiS3X48q5FETemXiSLGuYMQT2sPjYNPJSwA= github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY= golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w= golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc= golang.org/x/crypto v0.17.0/go.mod h1:gCAAfMLgwOJRpTjQ2zCCt2OcSfYMTeZVSRtQlPC7Nq4= golang.org/x/crypto v0.28.0 h1:GBDwsMXVQi34v5CCYUm2jkJvu4cbtru2U4TN2PSyQnw= golang.org/x/crypto v0.28.0/go.mod h1:rmgy+3RHxRZMyY0jjAJShp2zgEdOqj2AO7U0pYmeQ7U= +golang.org/x/exp v0.0.0-20240719175910-8a7402abbf56 h1:2dVuKD2vS7b0QIHQbpyTISPd0LeHDbnYEryqj5Q1ug8= +golang.org/x/exp v0.0.0-20240719175910-8a7402abbf56/go.mod h1:M4RDyNAINzryxdtnbRXRL/OHtkFuWGRjvuhBJpk2IlY= golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4= golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs= golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= @@ -56,6 +82,8 @@ golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c= golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs= golang.org/x/net v0.10.0/go.mod h1:0qNGK6F8kojg2nk9dLZ2mShWaEBan6FAoqfSigmmuDg= +golang.org/x/net v0.27.0 h1:5K3Njcw06/l2y9vpGCSdcxWOYHOUk3dVNGDXN+FvAys= +golang.org/x/net v0.27.0/go.mod h1:dDi0PyhWNoiUOrAS8uXv/vnScO4wnHQO4mj9fn/RytE= golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= @@ -85,6 +113,8 @@ golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ= golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8= golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8= golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU= +golang.org/x/text v0.19.0 h1:kTxAhCbGbxhK0IwgSKiMO5awPoDQ0RpfiVYBfK860YM= +golang.org/x/text v0.19.0/go.mod h1:BuEKDfySbSR4drPmRPG/7iBdf8hvFMuRexcpahXilzY= golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc= @@ -92,6 +122,8 @@ golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU= golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= gopkg.in/Knetic/govaluate.v3 v3.0.0/go.mod h1:csKLBORsPbafmSCGTEh3U7Ozmsuq8ZSIlKk1bcqph0E= gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= +gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk= +gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q= gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA= gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= diff --git a/internal/agent/nfs/fs.go b/internal/agent/nfs/fs.go new file mode 100644 index 0000000..eb03c0a --- /dev/null +++ b/internal/agent/nfs/fs.go @@ -0,0 +1,92 @@ +package nfs + +import ( + "errors" + "os" + + "github.com/go-git/go-billy/v5" +) + +var errReadOnly = errors.New("read-only file system") + +type ReadOnlyFS struct { + fs billy.Filesystem +} + +func NewROFS(fs billy.Filesystem) billy.Filesystem { + return &ReadOnlyFS{fs: fs} +} + +func (ro *ReadOnlyFS) Create(filename string) (billy.File, error) { + return nil, errReadOnly +} + +func (ro *ReadOnlyFS) OpenFile(filename string, flag int, perm os.FileMode) (billy.File, error) { + // Disallow any write flags + if flag != os.O_RDONLY { + return nil, errReadOnly + } + return ro.fs.OpenFile(filename, flag, perm) +} + +func (ro *ReadOnlyFS) Rename(oldpath, newpath string) error { + return errReadOnly +} + +func (ro *ReadOnlyFS) Remove(filename string) error { + return errReadOnly +} + +// Delegate read-only operations to the underlying fs + +func (ro *ReadOnlyFS) Open(filename string) (billy.File, error) { + return ro.fs.Open(filename) +} + +func (ro *ReadOnlyFS) Stat(filename string) (os.FileInfo, error) { + return ro.fs.Stat(filename) +} + +func (ro *ReadOnlyFS) Join(elem ...string) string { + return ro.fs.Join(elem...) +} + +func (ro *ReadOnlyFS) TempFile(dir, prefix string) (billy.File, error) { + return nil, errReadOnly +} + +func (ro *ReadOnlyFS) ReadDir(path string) ([]os.FileInfo, error) { + return ro.fs.ReadDir(path) +} + +func (ro *ReadOnlyFS) MkdirAll(filename string, perm os.FileMode) error { + return errReadOnly +} + +func (ro *ReadOnlyFS) Lstat(filename string) (os.FileInfo, error) { + return ro.fs.Lstat(filename) +} + +func (ro *ReadOnlyFS) Symlink(target, link string) error { + return errReadOnly +} + +func (ro *ReadOnlyFS) Readlink(link string) (string, error) { + return ro.fs.Readlink(link) +} + +func (ro *ReadOnlyFS) Chroot(path string) (billy.Filesystem, error) { + fs, err := ro.fs.Chroot(path) + if err != nil { + return nil, err + } + return New(fs), nil +} + +func (ro *ReadOnlyFS) Root() string { + return ro.fs.Root() +} + +func (ro *ReadOnlyFS) Capabilities() billy.Capability { + return billy.DefaultCapabilities &^ billy.WriteCapability +} diff --git a/internal/agent/nfs/nfs.go b/internal/agent/nfs/nfs.go new file mode 100644 index 0000000..0c589b4 --- /dev/null +++ b/internal/agent/nfs/nfs.go @@ -0,0 +1,76 @@ +//go:build windows +// +build windows + +package nfs + +import ( + "context" + "fmt" + "net" + "time" + + "github.com/go-git/go-billy/v5/osfs" + "github.com/sonroyaalmerol/pbs-plus/internal/agent/snapshots" + "github.com/sonroyaalmerol/pbs-plus/internal/utils" + "github.com/willscott/go-nfs" + "github.com/willscott/go-nfs/helpers" +) + +func Serve(ctx context.Context, errChan chan string, address, port string, driveLetter string) { + var listener net.Listener + listening := false + + listen := func() { + var err error + listenAt := fmt.Sprintf("%s:%s", address, port) + listener, err = net.Listen("tcp", listenAt) + if err != nil { + errChan <- fmt.Sprintf("Port is already in use! Failed to listen on %s: %v", listenAt, err) + return + } + listening = true + } + + listen() + + for !listening { + retryWait := utils.WaitChan(time.Second * 5) + select { + case <-ctx.Done(): + return + case <-retryWait: + listen() + } + } + + defer listener.Close() + + snapshot, err := snapshots.Snapshot(driveLetter) + if err != nil { + errChan <- fmt.Sprintf("failed to initialize snapshot: %v", err) + return + } + defer snapshot.Close() + + fs := osfs.New(snapshot.SnapshotPath) + readOnlyFs := NewROFS(fs) + nfsHandler := helpers.NewNullAuthHandler(readOnlyFs) + + go func() { + for { + go func() { + err := nfs.Serve(listener, nfsHandler) + if err != nil { + errChan <- fmt.Sprintf("NFS server error: %v", err) + } + }() + + select { + case <-ctx.Done(): + listener.Close() + return + case <-errChan: + } + } + }() +}