diff options
author | Quentin <quentin@deuxfleurs.fr> | 2021-08-19 22:12:12 +0200 |
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committer | Quentin <quentin@deuxfleurs.fr> | 2021-08-19 22:12:12 +0200 |
commit | d69640894d3f8259c7c6f843ecc8c963aa91ff97 (patch) | |
tree | 676a27e177482248d9a2ea6d1b5c8b4d223ff4b7 | |
download | bagage-d69640894d3f8259c7c6f843ecc8c963aa91ff97.tar.gz bagage-d69640894d3f8259c7c6f843ecc8c963aa91ff97.zip |
Initial commit
-rw-r--r-- | go.mod | 9 | ||||
-rw-r--r-- | go.sum | 88 | ||||
-rw-r--r-- | main.go | 365 |
3 files changed, 462 insertions, 0 deletions
@@ -0,0 +1,9 @@ +module git.deuxfleurs.fr/Deuxfleurs/bagage + +go 1.16 + +require ( + github.com/go-ldap/ldap/v3 v3.4.1 + github.com/minio/minio-go/v7 v7.0.12 + golang.org/x/net v0.0.0-20210813160813-60bc85c4be6d +) @@ -0,0 +1,88 @@ +github.com/Azure/go-ntlmssp v0.0.0-20200615164410-66371956d46c h1:/IBSNwUN8+eKzUzbJPqhK839ygXJ82sde8x3ogr6R28= +github.com/Azure/go-ntlmssp v0.0.0-20200615164410-66371956d46c/go.mod h1:chxPXzSsl7ZWRAuOIE23GDNzjWuZquvFlgA8xmpunjU= +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/dustin/go-humanize v1.0.0 h1:VSnTsYCnlFHaM2/igO1h6X3HA71jcobQuxemgkq4zYo= +github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk= +github.com/go-asn1-ber/asn1-ber v1.5.1 h1:pDbRAunXzIUXfx4CB2QJFv5IuPiuoW+sWvr/Us009o8= +github.com/go-asn1-ber/asn1-ber v1.5.1/go.mod h1:hEBeB/ic+5LoWskz+yKT7vGhhPYkProFKoKdwZRWMe0= +github.com/go-ldap/ldap/v3 v3.4.1 h1:fU/0xli6HY02ocbMuozHAYsaHLcnkLjvho2r5a34BUU= +github.com/go-ldap/ldap/v3 v3.4.1/go.mod h1:iYS1MdmrmceOJ1QOTnRXrIs7i3kloqtmGQjRvjKpyMg= +github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg= +github.com/google/uuid v1.1.1 h1:Gkbcsh/GbpXz7lPftLA3P6TYMwjCLYm83jiFQZF/3gY= +github.com/google/uuid v1.1.1/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo= +github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1 h1:EGx4pi6eqNxGaHF6qqu48+N2wcFQ5qg5FXgOdqsJ5d8= +github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY= +github.com/json-iterator/go v1.1.10 h1:Kz6Cvnvv2wGdaG/V8yMvfkmNiXq9Ya2KUv4rouJJr68= +github.com/json-iterator/go v1.1.10/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4= +github.com/jtolds/gls v4.20.0+incompatible h1:xdiiI2gbIgH/gLH7ADydsJ1uDOEzR8yvV7C0MuV77Wo= +github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU= +github.com/klauspost/cpuid v1.2.3/go.mod h1:Pj4uuM528wm8OyEC2QMXAi2YiTZ96dNQPGgoMS4s3ek= +github.com/klauspost/cpuid v1.3.1 h1:5JNjFYYQrZeKRJ0734q51WCEEn2huer72Dc7K+R/b6s= +github.com/klauspost/cpuid v1.3.1/go.mod h1:bYW4mA6ZgKPob1/Dlai2LviZJO7KGI3uoWLd42rAQw4= +github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo= +github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ= +github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI= +github.com/minio/md5-simd v1.1.0 h1:QPfiOqlZH+Cj9teu0t9b1nTBfPbyTl16Of5MeuShdK4= +github.com/minio/md5-simd v1.1.0/go.mod h1:XpBqgZULrMYD3R+M28PcmP0CkI7PEMzB3U77ZrKZ0Gw= +github.com/minio/minio-go/v7 v7.0.12 h1:/4pxUdwn9w0QEryNkrrWaodIESPRX+NxpO0Q6hVdaAA= +github.com/minio/minio-go/v7 v7.0.12/go.mod h1:S23iSP5/gbMwtxeY5FM71R+TkAYyzEdoNEDDwpt8yWs= +github.com/minio/sha256-simd v0.1.1 h1:5QHSlgo3nt5yKOJrC7W8w7X+NFl8cMPZm96iu8kKUJU= +github.com/minio/sha256-simd v0.1.1/go.mod h1:B5e1o+1/KgNmWrSQK08Y6Z1Vb5pwIktudl0J58iy0KM= +github.com/mitchellh/go-homedir v1.1.0 h1:lukF9ziXFxDFPkA1vsr5zpc1XuPDn/wFntq5mG+4E0Y= +github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0= +github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q= +github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd h1:TRLaZ9cD/w8PVh93nsPXa1VrQ6jlwL5oN8l14QlcNfg= +github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q= +github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0= +github.com/modern-go/reflect2 v1.0.1 h1:9f412s+6RmYXLWZSEzVVgPGK7C2PphHj5RJrvfx9AWI= 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h1:syvi0/a8iFYH4r/RixwvyeAJjdLS9QV7WQ/tjFTllLA= +github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= +github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs= +github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI= +github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJyk= +github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4= +golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w= +golang.org/x/crypto v0.0.0-20200604202706-70a84ac30bf9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto= +golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto= +golang.org/x/crypto v0.0.0-20201216223049-8b5274cf687f h1:aZp0e2vLN4MToVqnjNEYEtrEA8RH8U8FN1CU7JgqsPU= +golang.org/x/crypto v0.0.0-20201216223049-8b5274cf687f/go.mod h1:jdWPYTVW3xRLrWPugEBEK3UY2ZEsg3UU495nc5E+M+I= +golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg= +golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg= +golang.org/x/net v0.0.0-20200707034311-ab3426394381/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA= +golang.org/x/net v0.0.0-20210813160813-60bc85c4be6d h1:LO7XpTYMwTqxjLcGWPijK3vRXg1aWdlNOVOHRq45d7c= +golang.org/x/net v0.0.0-20210813160813-60bc85c4be6d/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y= +golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= +golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod 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h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= +golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= +golang.org/x/tools v0.0.0-20190328211700-ab21143f2384/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs= +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/ini.v1 v1.57.0 h1:9unxIsFcTt4I55uWluz+UmL95q4kdJ0buvQ1ZIqVQww= +gopkg.in/ini.v1 v1.57.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k= +gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= +gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10= +gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= @@ -0,0 +1,365 @@ +package main + +import ( + "context" + "log" + "fmt" + "os" + "io/fs" + "time" + "errors" + "net/http" + "strings" + "path" + + "golang.org/x/net/webdav" + + "github.com/go-ldap/ldap/v3" + + "github.com/minio/minio-go/v7" + "github.com/minio/minio-go/v7/pkg/credentials" +) + +type bagageCtxKey string +const garageEntry = bagageCtxKey("garage") + +type garageCtx struct { + MC *minio.Client + StatCache map[string]*GarageStat +} + +func main() { + pathPrefix := "/webdav" + UserBaseDN := "ou=users,dc=deuxfleurs,dc=fr" + UserNameAttr := "cn" + Endpoint := "garage.deuxfleurs.fr" + UseSSL := true + + srv := &webdav.Handler{ + Prefix: pathPrefix, + FileSystem: NewGarageFS(), + LockSystem: webdav.NewMemLS(), + Logger: func(r *http.Request, err error) { + log.Printf("WEBDAV: %#s, ERROR: %v", r, err) + }, + } + + //http.Handle("/", srv) + http.HandleFunc(pathPrefix + "/", func(w http.ResponseWriter, r *http.Request) { + username, password, ok := r.BasicAuth() + + if !ok { + NotAuthorized(w,r) + return + } + + ldapSock, err := ldap.Dial("tcp", "127.0.0.1:1389") + if err != nil { + log.Println(err) + InternalError(w,r) + return + } + defer ldapSock.Close() + + // Check credential + userDn := fmt.Sprintf("%s=%s,%s", UserNameAttr, username, UserBaseDN) + err = ldapSock.Bind(userDn, password) + if err != nil { + log.Println(err) + NotAuthorized(w,r) + return + } + + // Get S3 creds garage_s3_access_key garage_s3_secret_key + searchRequest := ldap.NewSearchRequest( + userDn, + ldap.ScopeBaseObject, + ldap.NeverDerefAliases, + 0, + 0, + false, + "(objectClass=*)", + []string{"garage_s3_access_key", "garage_s3_secret_key"}, + nil) + + sr, err := ldapSock.Search(searchRequest) + if err != nil { + log.Println(err) + InternalError(w,r) + return + } + + if len(sr.Entries) != 1 { + log.Println("Wrong number of LDAP entries, expected 1, got", len(sr.Entries)) + InternalError(w,r) + return + } + + access_key := sr.Entries[0].GetAttributeValue("garage_s3_access_key") + secret_key := sr.Entries[0].GetAttributeValue("garage_s3_secret_key") + + if access_key == "" || secret_key == "" { + log.Println("Either access key or secret key is missing in LDAP for ", userDn) + InternalError(w,r) + return + } + + mc, err := minio.New(Endpoint, &minio.Options{ + Creds: credentials.NewStaticV4(access_key, secret_key, ""), + Secure: UseSSL, + }) + if err != nil { + log.Println(err) + InternalError(w,r) + return + } + + nctx := context.WithValue(r.Context(), garageEntry, garageCtx{MC: mc, StatCache: make(map[string]*GarageStat)}) + srv.ServeHTTP(w, r.WithContext(nctx)) + return + }) + + if err := http.ListenAndServe(":8080", nil); err != nil { + log.Fatalf("Error with WebDAV server: %v", err) + } +} + +func NotAuthorized(w http.ResponseWriter, r *http.Request) { + w.Header().Set("WWW-Authenticate", `Basic realm="Pour accéder à Bagage, veuillez entrer vos identifiants Deuxfleurs"`) + w.WriteHeader(401) + w.Write([]byte("401 Unauthorized\n")) +} + +func InternalError(w http.ResponseWriter, r *http.Request) { + w.WriteHeader(500) + w.Write([]byte("500 Internal Server Error\n")) +} + +/* + /////// Select Action + If no slash or one trailing slash + return ListBuckets + Else + obj := ListObjects + If obj.Length == 1 + return GetObject + Else + return obj +*/ +type GarageFS struct {} + +func NewGarageFS() *GarageFS { + grg := new(GarageFS) + return grg +} + +func (s *GarageFS) Mkdir(ctx context.Context, name string, perm os.FileMode) error { + return errors.New("Not implemented Mkdir") +} + +func (s *GarageFS) OpenFile(ctx context.Context, name string, flag int, perm os.FileMode) (webdav.File, error) { + return NewGarageFile(ctx, name) +} + +func (s *GarageFS) RemoveAll(ctx context.Context, name string) error { + return errors.New("Not implemented RemoveAll") +} + +func (s *GarageFS) Rename(ctx context.Context, oldName, newName string) error { + return errors.New("Not implemented Rename") +} + +func (s *GarageFS) Stat(ctx context.Context, name string) (os.FileInfo, error) { + return NewGarageStat(ctx, name) +} + +type GarageFile struct { + ctx context.Context + mc *minio.Client + path string +} + +func NewGarageFile(ctx context.Context, path string) (webdav.File, error) { + gf := new(GarageFile) + gf.ctx = ctx + gf.mc = ctx.Value(garageEntry).(garageCtx).MC + gf.path = path + return gf, nil +} + +func (gf *GarageFile) Close() error { + return errors.New("not implemented Close") +} + +func (gf *GarageFile) Read(p []byte) (n int, err error) { + return 0, errors.New("not implemented Read") +} + +func (gf *GarageFile) Write(p []byte) (n int, err error) { + return 0, errors.New("not implemented Write") +} + +func (gf *GarageFile) Seek(offset int64, whence int) (int64, error) { + return 0, errors.New("not implemented Seek") +} + +/* +ReadDir reads the contents of the directory associated with the file f and returns a slice of DirEntry values in directory order. Subsequent calls on the same file will yield later DirEntry records in the directory. + +If n > 0, ReadDir returns at most n DirEntry records. In this case, if ReadDir returns an empty slice, it will return an error explaining why. At the end of a directory, the error is io.EOF. + +If n <= 0, ReadDir returns all the DirEntry records remaining in the directory. When it succeeds, it returns a nil error (not io.EOF). +*/ +func (gf *GarageFile) Readdir(count int) ([]fs.FileInfo, error) { + log.Println("Call Readdir with count", count) + + if gf.path == "/" { + return gf.readDirRoot(count) + } else { + exploded_path := strings.SplitN(gf.path, "/", 3) + return gf.readDirChild(count, exploded_path[1], exploded_path[2]) + } +} + +func (gf *GarageFile) readDirRoot(count int) ([]fs.FileInfo, error) { + buckets, err := gf.mc.ListBuckets(gf.ctx) + if err != nil { + return nil, err + } + + entries := make([]fs.FileInfo, 0, len(buckets)) + for _, bucket := range buckets { + ngf, err := NewGarageStat(gf.ctx, "/"+bucket.Name) + if err != nil { + return nil, err + } + entries = append(entries, ngf) + } + + return entries, nil +} + +func (gf *GarageFile) readDirChild(count int, bucket, prefix string) ([]fs.FileInfo, error) { + log.Println("call ListObjects with", bucket, prefix) + objs_info := gf.mc.ListObjects(gf.ctx, bucket, minio.ListObjectsOptions{ + Prefix: prefix, + Recursive: false, + }) + + entries := make([]fs.FileInfo,0) + for object := range objs_info { + if object.Err != nil { + return nil, object.Err + } + ngf, err := NewGarageStatFromObjectInfo(gf.ctx, bucket, object) + if err != nil { + return nil, err + } + entries = append(entries, ngf) + } + + return entries, nil +} + +func (gf *GarageFile) Stat() (fs.FileInfo, error) { + return NewGarageStat(gf.ctx, gf.path) +} + +/* Implements */ +// StatObject??? +type GarageStat struct { + obj minio.ObjectInfo + bucket string +} + +func NewGarageStat(ctx context.Context, path string) (*GarageStat, error) { + cache := ctx.Value(garageEntry).(garageCtx).StatCache + if entry, ok := cache[path]; ok { + return entry, nil + } + + gs, err := newGarageStatFresh(ctx, path) + if err != nil { + return nil, err + } + + cache[path] = gs + return gs, nil +} + +func newGarageStatFresh(ctx context.Context, path string) (*GarageStat, error) { + mc := ctx.Value(garageEntry).(garageCtx).MC + gs := new(GarageStat) + gs.bucket = "/" + gs.obj = minio.ObjectInfo{} + + exploded_path := strings.SplitN(path, "/", 3) + + // Check if we can extract the bucket name + if len(exploded_path) < 2 { + return gs, nil + } + gs.bucket = exploded_path[1] + + // Check if we can extract the prefix + if len(exploded_path) < 3 || exploded_path[2] == "" { + return gs, nil + } + gs.obj.Key = exploded_path[2] + + // Check if this is a file or a folder + log.Println("call StatObject with", gs.bucket, gs.obj.Key) + obj, err := mc.StatObject(ctx, gs.bucket, gs.obj.Key, minio.StatObjectOptions{}) + if e, ok := err.(minio.ErrorResponse); ok && e.Code == "NoSuchKey" { + return gs, nil + } + if err != nil { + return nil, err + } + + // If it is a file, assign its data + gs.obj = obj + return gs, nil +} + +func NewGarageStatFromObjectInfo(ctx context.Context, bucket string, obj minio.ObjectInfo) (*GarageStat, error) { + gs := new(GarageStat) + gs.bucket = bucket + gs.obj = obj + + cache := ctx.Value(garageEntry).(garageCtx).StatCache + cache[path.Join("/", bucket, obj.Key)] = gs + return gs, nil +} + +func (gs *GarageStat) Name() string { + if gs.obj.Key != "" { + return path.Base(gs.obj.Key) + } else { + return gs.bucket + } +} + +func (gs *GarageStat) Size() int64 { + return gs.obj.Size +} + +func (gs *GarageStat) Mode() fs.FileMode { + if gs.obj.ETag == "" { + return fs.ModeDir | fs.ModePerm + } else { + return fs.ModePerm + } +} + +func (gs *GarageStat) ModTime() time.Time { + return gs.obj.LastModified +} + +func (gs *GarageStat) IsDir() bool { + return gs.Mode().IsDir() +} + +func (gs *GarageStat) Sys() interface{} { + return nil +} |