diff --git a/exp_test.go b/exp_test.go index e5a3c83..b67d99d 100644 --- a/exp_test.go +++ b/exp_test.go @@ -274,3 +274,30 @@ func TestCreateSquashFromAppImage(t *testing.T) { t.Fatal(err) } } + +func TestSTUFF(t *testing.T) { + t.Parallel() + wd, err := os.Getwd() + if err != nil { + t.Fatal(err) + } + aiFil, err := os.Open(wd + "/testing/" + squashfsName) + if err != nil { + t.Fatal(err) + } + defer aiFil.Close() + rdr, err := NewReader(aiFil) + if err != nil { + t.Fatal(err) + } + os.Remove(wd + "/testing/test.txt") + testOut, _ := os.Create(wd + "/testing/test.txt") + testFil, err := rdr.Open("PortableApps/Notepad++Portable/App/Readme.txt") + if err != nil { + t.Fatal(err) + } + _, err = io.Copy(testOut, testFil) + if err != nil { + t.Fatal(err) + } +} diff --git a/fragment.go b/fragment.go index ddac0e7..87b79ca 100644 --- a/fragment.go +++ b/fragment.go @@ -15,7 +15,7 @@ type fragEntry struct { func (r Reader) fragReader(index uint32) (io.Reader, error) { realSize := r.fragEntries[index].Size &^ (1 << 24) rdr := io.LimitReader(toreader.NewReader(r.r, int64(r.fragEntries[index].Start)), int64(realSize)) - if realSize == r.fragEntries[index].Size { + if realSize != r.fragEntries[index].Size { return rdr, nil } return r.d.Reader(rdr) diff --git a/go.mod b/go.mod index f4bdfa1..a4a50a8 100644 --- a/go.mod +++ b/go.mod @@ -4,20 +4,15 @@ go 1.18 require ( github.com/CalebQ42/GoAppImage v0.5.0 - github.com/adrg/xdg v0.3.3 // indirect - github.com/gopherjs/gopherjs v0.0.0-20210420193930-a4630ec28c79 // indirect - github.com/klauspost/compress v1.12.2 - github.com/pierrec/lz4/v4 v4.1.6 - github.com/smartystreets/assertions v1.2.0 // indirect + github.com/klauspost/compress v1.15.6 + github.com/pierrec/lz4/v4 v4.1.15 + github.com/rasky/go-lzo v0.0.0-20200203143853-96a758eda86e + github.com/therootcompany/xz v1.0.1 github.com/ulikunitz/xz v0.5.10 - gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b // indirect ) require ( - github.com/golang/snappy v0.0.3 // indirect - github.com/google/go-cmp v0.5.5 // indirect - github.com/rasky/go-lzo v0.0.0-20200203143853-96a758eda86e - github.com/therootcompany/xz v1.0.1 + github.com/adrg/xdg v0.2.2 // indirect go.lsp.dev/uri v0.3.0 // indirect gopkg.in/ini.v1 v1.62.0 // indirect ) diff --git a/go.sum b/go.sum index 308dfe6..0b25bdb 100644 --- a/go.sum +++ b/go.sum @@ -1,348 +1,49 @@ -cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= -cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= -cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU= -cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU= -cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY= -cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc= -cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0= -cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o= -cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE= -cloud.google.com/go/firestore v1.1.0/go.mod h1:ulACoGHTpvq5r8rxGJ4ddJZBZqakUQqClKRT5SZwBmk= -cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I= -cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw= -dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU= -github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= -github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo= github.com/CalebQ42/GoAppImage v0.5.0 h1:znoKNXtliH754tS9sYwyOIg/0wFDjFN5Twc7PAh1rSM= github.com/CalebQ42/GoAppImage v0.5.0/go.mod h1:qHudJKAn/dlkNWNnH4h1YKXp29EZ7Bppsn7sNP2HuvU= -github.com/OneOfOne/xxhash v1.2.2/go.mod 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v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q= -github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8= -github.com/bgentry/speakeasy v0.1.0/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kBD4zp0CCIs= -github.com/bketelsen/crypt v0.0.3-0.20200106085610-5cbc8cc4026c/go.mod h1:MKsuJmJgSg28kpZDP6UIiPt0e0Oz0kqKNGyRaWEPv84= -github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc= -github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw= -github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk= -github.com/coreos/etcd v3.3.13+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE= -github.com/coreos/go-semver v0.3.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk= -github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4= -github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA= -github.com/cpuguy83/go-md2man/v2 v2.0.0/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU= 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= -github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ= -github.com/dgryski/go-sip13 v0.0.0-20181026042036-e10d5fee7954/go.mod h1:vAd38F8PWV+bWy6jNmig1y/TA+kYO4g3RSRF0IAv0no= -github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4= -github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo= -github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ= -github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04= -github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU= -github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as= -github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE= -github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk= -github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY= -github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ= -github.com/gogo/protobuf v1.2.1/go.mod h1:hp+jE20tsWTFYpLwKvXlhS1hjn+gTNwPg2I6zVXpSg4= -github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q= -github.com/golang/groupcache v0.0.0-20190129154638-5b532d6fd5ef/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc= -github.com/golang/mock v1.1.1/go.mod 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h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4= -google.golang.org/appengine v1.5.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4= -google.golang.org/appengine v1.6.1/go.mod h1:i06prIuMbXzDqacNJfV5OdTW448YApPu5ww/cMBSeb0= -google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc= -google.golang.org/genproto v0.0.0-20190307195333-5fe7a883aa19/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE= -google.golang.org/genproto v0.0.0-20190418145605-e7d98fc518a7/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE= -google.golang.org/genproto v0.0.0-20190425155659-357c62f0e4bb/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE= -google.golang.org/genproto v0.0.0-20190502173448-54afdca5d873/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE= -google.golang.org/genproto v0.0.0-20190801165951-fa694d86fc64/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc= -google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc= -google.golang.org/genproto v0.0.0-20190911173649-1774047e7e51/go.mod h1:IbNlFCBrqXvoKpeg0TB2l7cyZUmoaFKYIwrEpbDKLA8= -google.golang.org/genproto v0.0.0-20191108220845-16a3f7862a1a/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc= -google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c= -google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38= -google.golang.org/grpc v1.21.1/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM= -gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw= gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= -gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= gopkg.in/check.v1 v1.0.0-20200902074654-038fdea0a05b/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= -gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI= -gopkg.in/ini.v1 v1.51.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k= gopkg.in/ini.v1 v1.62.0 h1:duBzk771uxoUuOlyRLkHsygud9+5lrlGjdFBb4mSKDU= gopkg.in/ini.v1 v1.62.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k= -gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo= -gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74= -gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= -gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= -gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ= +gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo= gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= -gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo= -gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= -honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= -honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= -honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= -honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg= -rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8= diff --git a/internal/data/fullreader.go b/internal/data/fullreader.go index 2127862..fe41708 100644 --- a/internal/data/fullreader.go +++ b/internal/data/fullreader.go @@ -10,7 +10,7 @@ import ( type FullReader struct { r io.ReaderAt d decompress.Decompressor - fragRdr io.Reader + fragRdr func() (io.Reader, error) sizes []uint32 blockSize uint32 start uint64 @@ -26,7 +26,7 @@ func NewFullReader(r io.ReaderAt, start uint64, d decompress.Decompressor, block } } -func (r *FullReader) AddFragment(rdr io.Reader) { +func (r *FullReader) AddFragment(rdr func() (io.Reader, error)) { r.fragRdr = rdr } @@ -40,6 +40,14 @@ func (r FullReader) process(index int, offset int64, out chan outDat) { var err error var dat []byte size := realSize(r.sizes[index]) + if size == 0 { + out <- outDat{ + i: index, + err: nil, + data: make([]byte, r.blockSize), + } + return + } rdr := io.LimitReader(toreader.NewReader(r.r, offset), int64(size)) if size == r.sizes[index] { rdr, err = r.d.Reader(rdr) @@ -64,13 +72,21 @@ func (r FullReader) WriteTo(w io.Writer) (n int64, err error) { for i := 0; i < num; i++ { if i == num-1 && r.fragRdr != nil { go func() { - dat, e := io.ReadAll(r.fragRdr) + rdr, e := r.fragRdr() + if err != nil { + out <- outDat{ + i: num - 1, + err: e, + } + return + } + dat, e := io.ReadAll(rdr) out <- outDat{ - i: num, + i: num - 1, err: e, data: dat, } - if clr, ok := r.fragRdr.(io.Closer); ok { + if clr, ok := rdr.(io.Closer); ok { clr.Close() } }() diff --git a/internal/data/reader.go b/internal/data/reader.go index 1befcfe..5c7f5d6 100644 --- a/internal/data/reader.go +++ b/internal/data/reader.go @@ -16,14 +16,13 @@ type Reader struct { blockSize uint32 } -func NewReader(r io.Reader, d decompress.Decompressor, blockSizes []uint32, blockSize uint32) (*Reader, error) { +func NewReader(r io.Reader, d decompress.Decompressor, blockSizes []uint32, blockSize uint32) *Reader { var out Reader out.d = d out.master = r out.blockSizes = blockSizes out.blockSize = blockSize - err := out.advance() - return &out, err + return &out } func (r *Reader) AddFragment(rdr io.Reader) { @@ -59,6 +58,12 @@ func (r *Reader) advance() (err error) { } func (r *Reader) Read(p []byte) (n int, err error) { + if r.cur == nil { + err = r.advance() + if err != nil { + return + } + } n, err = r.cur.Read(p) if err == io.EOF { err = r.advance() diff --git a/internal/inode/inode.go b/internal/inode/inode.go index d5264ea..d633eab 100644 --- a/internal/inode/inode.go +++ b/internal/inode/inode.go @@ -4,6 +4,7 @@ import ( "encoding/binary" "errors" "io" + "strconv" ) const ( @@ -72,7 +73,7 @@ func Read(r io.Reader, blockSize uint32) (i Inode, err error) { case ESock: i.Data, err = ReadEIPC(r) default: - return i, errors.New("invalid inode type") + return i, errors.New("invalid inode type " + strconv.Itoa(int(i.Type))) } return } diff --git a/internal/metadata/reader.go b/internal/metadata/reader.go index 9df7a74..a5e48fb 100644 --- a/internal/metadata/reader.go +++ b/internal/metadata/reader.go @@ -21,9 +21,14 @@ func NewReader(r io.Reader, d decompress.Decompressor) (*Reader, error) { } func (r *Reader) Advance() error { - if clr, ok := r.cur.(io.Closer); ok { - clr.Close() - } + + //For some reason things get closed improperly and causes issues. + //NO IDEA HOW THIS IS HAPPENING. + + // if clr, ok := r.cur.(io.Closer); ok { + // clr.Close() + // r.cur = nil + // } var size uint16 err := binary.Read(r.master, binary.LittleEndian, &size) if err != nil { diff --git a/reader.go b/reader.go index 2998a08..60dc5d1 100644 --- a/reader.go +++ b/reader.go @@ -181,9 +181,10 @@ func NewReader(r io.ReaderAt) (*Reader, error) { rdr: &squash, i: root, e: directory.Entry{ - Name: "root", + Name: "", Type: enType, }, + r: &squash, }, } return &squash, nil diff --git a/reader_file.go b/reader_file.go index d9b6f3b..b958e51 100644 --- a/reader_file.go +++ b/reader_file.go @@ -29,19 +29,15 @@ var ( ErrReadNotFile = errors.New("read called on non-file") ) -func (r Reader) newFile(en directory.Entry) (*File, error) { +func (r Reader) newFile(en directory.Entry, parent *FS) (*File, error) { i, err := r.inodeFromDir(en) if err != nil { return nil, err } var rdr io.Reader var full io.WriterTo - if en.Type == inode.Fil { - rdr, err = r.getData(i) - if err != nil { - return nil, err - } - full, err = r.getFullReader(i) + if i.Type == inode.Fil || i.Type == inode.EFil { + full, rdr, err = r.getReaders(i) if err != nil { return nil, err } @@ -52,6 +48,7 @@ func (r Reader) newFile(en directory.Entry) (*File, error) { rdr: rdr, fullRdr: full, r: &r, + parent: parent, }, nil } @@ -180,7 +177,7 @@ func (f File) GetSymlinkFile() *File { //ExtractionOptions are available options on how to extract. type ExtractionOptions struct { - notBase bool + LogOutput io.Writer //Where error log should write. If nil, uses os.Stdout. Has no effect if verbose is false. DereferenceSymlink bool //Replace symlinks with the target file UnbreakSymlink bool //Try to make sure symlinks remain unbroken when extracted, without changing the symlink Verbose bool //Prints extra info to log on an error @@ -212,26 +209,26 @@ func (f File) ExtractSymlink(folder string) error { //ExtractWithOptions extracts the File to the given folder with the given ExtrationOptions. //If the File is a directory, it instead extracts the directory's contents to the folder. func (f File) ExtractWithOptions(folder string, op ExtractionOptions) error { - if !op.notBase { - err := os.MkdirAll(folder, op.FolderPerm) - if err != nil { - return err + if op.Verbose { + if op.LogOutput == nil { + op.LogOutput = os.Stdout } + log.SetOutput(op.LogOutput) } - folder = filepath.Clean(folder) - stat, err := f.Stat() - if err != nil { + return f.realExtract(folder, op) +} + +func (f File) realExtract(folder string, op ExtractionOptions) error { + err := os.MkdirAll(folder, op.FolderPerm) + if err != nil && !os.IsExist(err) { + if op.Verbose { + log.Println("Error while creating extraction folder") + } return err } + folder = filepath.Clean(folder) if f.IsDir() { - if op.notBase { - err = os.Mkdir(folder+"/"+f.e.Name, stat.Mode()) - if err != nil && !os.IsExist(err) { - return err - } - } else { - op.notBase = true - } + filFS, _ := f.FS() var ents []directory.Entry ents, err = f.r.readDirectory(f.i) if err != nil { @@ -243,14 +240,28 @@ func (f File) ExtractWithOptions(folder string, op ExtractionOptions) error { errChan := make(chan error) for i := 0; i < len(ents); i++ { go func(ent directory.Entry) { - fil, goErr := f.r.newFile(ent) + fil, goErr := f.r.newFile(ent, filFS) if goErr != nil { + if op.Verbose { + log.Println("Error while reading info for", filepath.Join(f.path(), ent.Name)) + } errChan <- goErr - fil.Close() return } - fil.parent, _ = f.FS() - errChan <- fil.ExtractWithOptions(folder+"/"+f.e.Name, op) + if fil.IsDir() { + info, _ := fil.Stat() + err = os.Mkdir(filepath.Join(folder, fil.e.Name), info.Mode()) + if err != nil { + if op.Verbose { + log.Println("Error while creating", filepath.Join(folder, fil.e.Name)) + } + errChan <- err + return + } + errChan <- fil.realExtract(filepath.Join(folder, fil.e.Name), op) + } else { + errChan <- fil.realExtract(folder, op) + } fil.Close() }(ents[i]) } @@ -268,15 +279,22 @@ func (f File) ExtractWithOptions(folder string, op ExtractionOptions) error { os.Remove(folder + "/" + f.e.Name) fil, err = os.Create(folder + "/" + f.e.Name) if err != nil { - log.Println("Error while creating", folder+"/"+f.e.Name) + if op.Verbose { + log.Println("Error while creating", folder+"/"+f.e.Name) + } return err } } else if err != nil { + if op.Verbose { + log.Println("Error while creating", folder+"/"+f.e.Name) + } return err } _, err = io.Copy(fil, f) if err != nil { - log.Println("Error while copying data to", folder+"/"+f.e.Name) + if op.Verbose { + log.Println("Error while copying data to", folder+"/"+f.e.Name) + } return err } return nil @@ -291,7 +309,7 @@ func (f File) ExtractWithOptions(folder string, op ExtractionOptions) error { return errors.New("cannot get symlink target") } fil.e.Name = f.e.Name - err = fil.ExtractWithOptions(folder, op) + err = fil.realExtract(folder, op) if err != nil { if op.Verbose { log.Println("Error while extracting the symlink's file:", folder+"/"+f.e.Name) @@ -308,7 +326,7 @@ func (f File) ExtractWithOptions(folder string, op ExtractionOptions) error { return errors.New("cannot get symlink target") } extractLoc := filepath.Clean(folder + "/" + filepath.Dir(symPath)) - err = fil.ExtractWithOptions(extractLoc, op) + err = fil.realExtract(extractLoc, op) if err != nil { if op.Verbose { log.Println("Error while extracting ", folder+"/"+f.e.Name) diff --git a/reader_fs.go b/reader_fs.go index 4ea8c9a..a1ed718 100644 --- a/reader_fs.go +++ b/reader_fs.go @@ -19,15 +19,24 @@ type FS struct { e []directory.Entry } -func (r Reader) newFS(e directory.Entry) (f *FS, err error) { - f = new(FS) - f.i, err = r.inodeFromDir(e) +func (r Reader) newFS(e directory.Entry, parent *FS) (*FS, error) { + i, err := r.inodeFromDir(e) if err != nil { - return + return nil, err } - f.r = &r - f.e, err = r.readDirectory(f.i) - return + ents, err := r.readDirectory(i) + if err != nil { + return nil, err + } + return &FS{ + File: &File{ + i: i, + r: &r, + parent: parent, + e: e, + }, + e: ents, + }, nil } //Open opens the file at name. Returns a squashfs.File. @@ -56,7 +65,7 @@ func (f FS) Open(name string) (fs.File, error) { } } if len(split) > 1 { - newFS, err := f.r.newFS(f.e[i]) + newFS, err := f.r.newFS(f.e[i], &f) if err != nil { return nil, &fs.PathError{ Op: "open", @@ -64,14 +73,14 @@ func (f FS) Open(name string) (fs.File, error) { Err: err, } } - newFS.parent = &f out, err := newFS.Open(strings.Join(split[1:], "/")) if err != nil { err.(*fs.PathError).Path = name } return out, err } - out, err := f.r.newFile(f.e[i]) + // fmt.Println(f.e[i]) + out, err := f.r.newFile(f.e[i], &f) if err != nil { err = &fs.PathError{ Op: "open", @@ -79,7 +88,6 @@ func (f FS) Open(name string) (fs.File, error) { Err: err, } } - out.parent = &f return out, err } return nil, &fs.PathError{ @@ -167,7 +175,7 @@ func (f FS) ReadDir(name string) ([]fs.DirEntry, error) { for i := 0; i < len(f.e); i++ { if split[0] == f.e[i].Name { if len(split) == 1 { - fi, err := f.r.newFile(f.e[i]) + fi, err := f.r.newFile(f.e[i], &f) if err != nil { return nil, &fs.PathError{ Op: "readdir", @@ -343,7 +351,7 @@ func (f FS) Sub(dir string) (fs.FS, error) { Err: fs.ErrNotExist, } } - newFS, err := f.r.newFS(f.e[i]) + newFS, err := f.r.newFS(f.e[i], &f) if err != nil { return nil, &fs.PathError{ Op: "sub", diff --git a/reader_inode.go b/reader_inode.go index 71f9582..cc444d2 100644 --- a/reader_inode.go +++ b/reader_inode.go @@ -36,75 +36,56 @@ func (r Reader) inodeFromDir(e directory.Entry) (i inode.Inode, err error) { return inode.Read(rdr, r.s.BlockSize) } -func (r Reader) getData(i inode.Inode) (io.Reader, error) { +func (r Reader) getReaders(i inode.Inode) (full *data.FullReader, rdr *data.Reader, err error) { var fragOffset uint64 var blockOffset uint32 var blockSizes []uint32 var fragInd uint32 + var fragSize uint32 if i.Type == inode.Fil { fragOffset = uint64(i.Data.(inode.File).Offset) blockOffset = i.Data.(inode.File).BlockStart blockSizes = i.Data.(inode.File).BlockSizes fragInd = i.Data.(inode.File).FragInd + fragSize = i.Data.(inode.File).Size % r.s.BlockSize } else if i.Type == inode.EFil { fragOffset = uint64(i.Data.(inode.EFile).Offset) blockOffset = i.Data.(inode.EFile).BlockStart blockSizes = i.Data.(inode.EFile).BlockSizes fragInd = i.Data.(inode.EFile).FragInd + fragSize = uint32(i.Data.(inode.EFile).Size % uint64(r.s.BlockSize)) } else { - return nil, errors.New("getData called on non-file type") - } - rdr, err := data.NewReader(toreader.NewReader(r.r, int64(blockOffset)), r.d, blockSizes, r.s.BlockSize) - if err != nil { - return nil, err + return nil, nil, errors.New("getReaders called on non-file type") } + rdr = data.NewReader(toreader.NewReader(r.r, int64(blockOffset)), r.d, blockSizes, r.s.BlockSize) + full = data.NewFullReader(r.r, uint64(blockOffset), r.d, blockSizes, r.s.BlockSize) if fragInd != 0xFFFFFFFF { + full.AddFragment(func() (io.Reader, error) { + var fragRdr io.Reader + fragRdr, err = r.fragReader(fragInd) + if err != nil { + return nil, err + } + _, err = fragRdr.Read(make([]byte, fragOffset)) + if err != nil { + return nil, err + } + fragRdr = io.LimitReader(fragRdr, int64(fragSize)) + return fragRdr, nil + }) var fragRdr io.Reader fragRdr, err = r.fragReader(fragInd) if err != nil { - return nil, err + return nil, nil, err } _, err = fragRdr.Read(make([]byte, fragOffset)) if err != nil { - return nil, err + return nil, nil, err } + fragRdr = io.LimitReader(fragRdr, int64(fragSize)) rdr.AddFragment(fragRdr) } - return rdr, nil -} - -func (r Reader) getFullReader(i inode.Inode) (rdr *data.FullReader, err error) { - var fragOffset uint64 - var blockOffset uint32 - var blockSizes []uint32 - var fragInd uint32 - if i.Type == inode.Fil { - fragOffset = uint64(i.Data.(inode.File).Offset) - blockOffset = i.Data.(inode.File).BlockStart - blockSizes = i.Data.(inode.File).BlockSizes - fragInd = i.Data.(inode.File).FragInd - } else if i.Type == inode.EFil { - fragOffset = uint64(i.Data.(inode.EFile).Offset) - blockOffset = i.Data.(inode.EFile).BlockStart - blockSizes = i.Data.(inode.EFile).BlockSizes - fragInd = i.Data.(inode.EFile).FragInd - } else { - return nil, errors.New("getData called on non-file type") - } - rdr = data.NewFullReader(r.r, uint64(blockOffset), r.d, blockSizes, r.s.BlockSize) - if fragInd != 0xFFFFFFFF { - var fragRdr io.Reader - fragRdr, err = r.fragReader(fragInd) - if err != nil { - return nil, err - } - _, err = fragRdr.Read(make([]byte, fragOffset)) - if err != nil { - return nil, err - } - rdr.AddFragment(fragRdr) - } - return rdr, nil + return } func (r Reader) readDirectory(i inode.Inode) ([]directory.Entry, error) { diff --git a/squashfs_test.go b/squashfs_test.go index 4a35f07..9960012 100644 --- a/squashfs_test.go +++ b/squashfs_test.go @@ -1,5 +1,7 @@ package squashfs_test +//Actually proper tests go here. + import ( "io" "io/fs" @@ -18,7 +20,7 @@ const ( ) func preTest(dir string) (fil *os.File, err error) { - _, err = os.Open(filepath.Join(dir, squashfsName)) + fil, err = os.Open(filepath.Join(dir, squashfsName)) if err != nil { _, err = os.Open(dir) if os.IsNotExist(err) { @@ -54,20 +56,24 @@ func TestExtractQuick(t *testing.T) { //First, setup everything and extract the archive using the library and unsquashfs - tmpDir := t.TempDir() + // tmpDir := t.TempDir() + tmpDir := "testing" fil, err := preTest(tmpDir) if err != nil { t.Fatal(err) } libPath := filepath.Join(tmpDir, "ExtractLib") unsquashPath := filepath.Join(tmpDir, "ExtractSquashfs") - os.Remove(libPath) - os.Remove(unsquashPath) + os.RemoveAll(libPath) + os.RemoveAll(unsquashPath) rdr, err := squashfs.NewReader(fil) if err != nil { t.Fatal(err) } - err = rdr.ExtractTo(libPath) + op := squashfs.DefaultOptions() + op.Verbose = true + sub := + err = rdr.ExtractWithOptions(libPath, op) if err != nil { t.Fatal(err) }