diff --git a/api/sftp_endpoints.go b/api/sftp_endpoints.go index a626c07..b0a0e0f 100644 --- a/api/sftp_endpoints.go +++ b/api/sftp_endpoints.go @@ -2,11 +2,57 @@ package api import ( "encoding/json" + "github.com/apex/log" "github.com/pkg/errors" - "github.com/pterodactyl/sftp-server" + "regexp" ) -func (r *PanelRequest) ValidateSftpCredentials(request sftp_server.AuthenticationRequest) (*sftp_server.AuthenticationResponse, error) { +type SftpAuthRequest struct { + User string `json:"username"` + Pass string `json:"password"` + IP string `json:"ip"` + SessionID []byte `json:"session_id"` + ClientVersion []byte `json:"client_version"` +} + +type SftpAuthResponse struct { + Server string `json:"server"` + Token string `json:"token"` + Permissions []string `json:"permissions"` +} + +type sftpInvalidCredentialsError struct { +} + +func (ice sftpInvalidCredentialsError) Error() string { + return "the credentials provided were invalid" +} + +func IsInvalidCredentialsError(err error) bool { + _, ok := err.(*sftpInvalidCredentialsError) + + return ok +} + +// Usernames all follow the same format, so don't even bother hitting the API if the username is not +// at least in the expected format. This is very basic protection against random bots finding the SFTP +// server and sending a flood of usernames. +var validUsernameRegexp = regexp.MustCompile(`^(?i)(.+)\.([a-z0-9]{8})$`) + +func (r *PanelRequest) ValidateSftpCredentials(request SftpAuthRequest) (*SftpAuthResponse, error) { + // If the username doesn't meet the expected format that the Panel would even recognize just go ahead + // and bail out of the process here to avoid accidentially brute forcing the panel if a bot decides + // to connect to spam username attempts. + if !validUsernameRegexp.MatchString(request.User) { + log.WithFields(log.Fields{ + "subsystem": "sftp", + "username": request.User, + "ip": request.IP, + }).Warn("failed to validate user credentials (invalid format)") + + return nil, new(sftpInvalidCredentialsError) + } + b, err := json.Marshal(request) if err != nil { return nil, err @@ -22,7 +68,7 @@ func (r *PanelRequest) ValidateSftpCredentials(request sftp_server.Authenticatio if r.HasError() { if r.HttpResponseCode() >= 400 && r.HttpResponseCode() < 500 { - return nil, new(sftp_server.InvalidCredentialsError) + return nil, new(sftpInvalidCredentialsError) } rerr := errors.New(r.Error().String()) @@ -30,7 +76,7 @@ func (r *PanelRequest) ValidateSftpCredentials(request sftp_server.Authenticatio return nil, rerr } - response := new(sftp_server.AuthenticationResponse) + response := new(SftpAuthResponse) body, _ := r.ReadBody() if err := json.Unmarshal(body, response); err != nil { diff --git a/cmd/root.go b/cmd/root.go index da9f4f9..68404a1 100644 --- a/cmd/root.go +++ b/cmd/root.go @@ -218,9 +218,8 @@ func rootCmdRun(*cobra.Command, []string) { pool.StopWait() // Initialize the SFTP server. - if err := sftp.Initialize(c); err != nil { - log.WithError(err).Error("failed to initialize the sftp server") - os.Exit(1) + if err := sftp.Initialize(c.System); err != nil { + log.WithError(err).Fatal("failed to initialize the sftp server") return } diff --git a/go.mod b/go.mod index 1e4e090..e46bd66 100644 --- a/go.mod +++ b/go.mod @@ -2,14 +2,6 @@ module github.com/pterodactyl/wings go 1.13 -// Uncomment this in development environments to make changes to the core SFTP -// server software. This assumes you're using the official Pterodactyl Environment -// otherwise this path will not work. -// -// @see https://github.com/pterodactyl/development -// -// replace github.com/pterodactyl/sftp-server => ../sftp-server - require ( github.com/AlecAivazis/survey/v2 v2.1.0 github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78 // indirect @@ -32,6 +24,7 @@ require ( github.com/docker/go-metrics v0.0.1 // indirect github.com/docker/go-units v0.4.0 // indirect github.com/fatih/color v1.9.0 + github.com/frankban/quicktest v1.10.2 // indirect github.com/fsnotify/fsnotify v1.4.9 // indirect github.com/gabriel-vasile/mimetype v1.1.1 github.com/gammazero/deque v0.0.0-20200721202602-07291166fe33 // indirect @@ -40,7 +33,6 @@ require ( github.com/gin-gonic/gin v1.6.3 github.com/go-playground/validator/v10 v10.3.0 // indirect github.com/gogo/protobuf v1.3.1 // indirect - github.com/golang/gddo v0.0.0-20200715224205-051695c33a3f // indirect github.com/google/uuid v1.1.1 github.com/gorilla/mux v1.7.4 // indirect github.com/gorilla/websocket v1.4.2 @@ -66,15 +58,12 @@ require ( github.com/pierrec/lz4 v2.5.2+incompatible // indirect github.com/pkg/errors v0.9.1 github.com/pkg/profile v1.5.0 - github.com/pkg/sftp v1.11.0 // indirect + github.com/pkg/sftp v1.11.0 github.com/prometheus/common v0.11.1 // indirect - github.com/pterodactyl/sftp-server v1.1.5 github.com/remeh/sizedwaitgroup v1.0.0 github.com/sabhiram/go-gitignore v0.0.0-20180611051255-d3107576ba94 - github.com/smartystreets/goconvey v1.6.4 // indirect github.com/spf13/cobra v1.0.0 github.com/spf13/pflag v1.0.5 // indirect - github.com/uber-go/zap v1.9.1 // indirect github.com/ulikunitz/xz v0.5.7 // indirect go.uber.org/zap v1.15.0 golang.org/x/crypto v0.0.0-20200728195943-123391ffb6de @@ -84,7 +73,6 @@ require ( golang.org/x/text v0.3.3 // indirect golang.org/x/time v0.0.0-20200630173020-3af7569d3a1e // indirect golang.org/x/tools v0.0.0-20200509030707-2212a7e161a5 // indirect - golang.org/x/tools/gopls v0.1.3 // indirect golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect google.golang.org/genproto v0.0.0-20200806141610-86f49bd18e98 // indirect google.golang.org/grpc v1.31.0 // indirect diff --git a/go.sum b/go.sum index d45fc15..2ba1bef 100644 --- a/go.sum +++ b/go.sum @@ -1,21 +1,14 @@ -cloud.google.com/go v0.16.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= 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= -github.com/AlecAivazis/survey/v2 v2.0.7 h1:+f825XHLse/hWd2tE/V5df04WFGimk34Eyg/z35w/rc= -github.com/AlecAivazis/survey/v2 v2.0.7/go.mod h1:mlizQTaPjnR4jcpwRSaSlkbsRfYFEyKgLQvYTzxxiHA= github.com/AlecAivazis/survey/v2 v2.1.0 h1:AT4+23hOFopXYZaNGugbk7MWItkz0SfTmH/Hk92KeeE= github.com/AlecAivazis/survey/v2 v2.1.0/go.mod h1:9FJRdMdDm8rnT+zHVbvQT2RTSTLq0Ttd6q3Vl2fahjk= github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78 h1:w+iIsaOQNcT7OZ575w+acHgRric5iCyQh+xv+KJ4HB8= github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78/go.mod h1:LmzpDX56iTiv29bbRTIsUNlaFfuhWRQBWjQdVyAevI8= github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ= github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= -github.com/Jeffail/gabs/v2 v2.2.0 h1:7touC+WzbQ7LO5+mwgxT44miyTqAVCOlIWLA6PiIB5w= -github.com/Jeffail/gabs/v2 v2.2.0/go.mod h1:xCn81vdHKxFUuWWAaD5jCTQDNPBMh5pPs9IJ+NcziBI= github.com/Jeffail/gabs/v2 v2.5.1 h1:ANfZYjpMlfTTKebycu4X1AgkVWumFVDYQl7JwOr4mDk= github.com/Jeffail/gabs/v2 v2.5.1/go.mod h1:xCn81vdHKxFUuWWAaD5jCTQDNPBMh5pPs9IJ+NcziBI= github.com/Knetic/govaluate v3.0.1-0.20171022003610-9aa49832a739+incompatible/go.mod h1:r7JcOSlj0wfOMncg0iLm8Leh48TZaKVeNIfJntJ2wa0= -github.com/Microsoft/go-winio v0.4.7 h1:vOvDiY/F1avSWlCWiKJjdYKz2jVjTK3pWPHndeG4OAY= -github.com/Microsoft/go-winio v0.4.7/go.mod h1:VhR8bwka0BXejwEJY73c50VrPtXAaKcyvVC4A4RozmA= github.com/Microsoft/go-winio v0.4.14 h1:+hMXMk01us9KgxGb7ftKQt2Xpf5hH/yky+TDA+qxleU= github.com/Microsoft/go-winio v0.4.14/go.mod h1:qXqCSQ3Xa7+6tgxaGTIe4Kpcdsi+P8jBhyzoq1bpyYA= github.com/NYTimes/logrotate v1.0.0 h1:6jFGbon6jOtpy3t3kwZZKS4Gdmf1C/Wv5J4ll4Xn5yk= @@ -38,11 +31,8 @@ github.com/andybalholm/brotli v1.0.0 h1:7UCwP93aiSfvWpapti8g88vVVGp2qqtGyePsSuDa github.com/andybalholm/brotli v1.0.0/go.mod h1:loMXtMfwqflxFJPmdbJO0a3KNoPuLBgiu3qAvBg8x/Y= github.com/apache/thrift v0.12.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ= github.com/apache/thrift v0.13.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ= -github.com/apex/log v1.3.0 h1:1fyfbPvUwD10nMoh3hY6MXzvZShJQn9/ck7ATgAt5pA= -github.com/apex/log v1.3.0/go.mod h1:jd8Vpsr46WAe3EZSQ/IUMs2qQD/GOycT5rPWCO1yGcs= github.com/apex/log v1.8.0 h1:+W4j+dttibFvynPLlctdnYFUn1eLKT37BZWWW2iMfEM= github.com/apex/log v1.8.0/go.mod h1:m82fZlWIuiWzWP04XCTXmnX0xRkYYbCdYn8jbJeLBEA= -github.com/apex/logs v0.0.4/go.mod h1:XzxuLZ5myVHDy9SAmYpamKKRNApGj54PfYLcFrXqDwo= github.com/apex/logs v1.0.0/go.mod h1:XzxuLZ5myVHDy9SAmYpamKKRNApGj54PfYLcFrXqDwo= github.com/aphistic/golf v0.0.0-20180712155816-02c07f170c5a/go.mod h1:3NqKYiepwy8kCu4PNA+aP7WUV72eXWJeP9/r3/K9aLE= github.com/aphistic/sweet v0.2.0/go.mod h1:fWDlIh/isSE9n6EPsRmC0det+whmX6dJid3stzu0Xys= @@ -51,8 +41,6 @@ github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5 github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod h1:Q73ZrmVTwzkszR9V5SSuryQ31EELlFMUz1kKyl939pY= github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8= github.com/aryann/difflib v0.0.0-20170710044230-e206f873d14a/go.mod h1:DAHtR1m6lCRdSC2Tm3DSWRPvIPr6xNKyeHdqDQSQT+A= -github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a h1:idn718Q4B6AGu/h5Sxe66HYVdqdGu2l9Iebqhi/AEoA= -github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a/go.mod h1:lB+ZfQJz7igIIfQNfa7Ml4HSf2uFQQRzpGGRXenZAgY= github.com/asaskevich/govalidator v0.0.0-20200428143746-21a406dcc535 h1:4daAzAu0S6Vi7/lbWECcX0j45yZReDZ56BQsrVBOEEY= github.com/asaskevich/govalidator v0.0.0-20200428143746-21a406dcc535/go.mod h1:oGkLhpf+kjZl6xBf758TQhh5XrAeiJv/7FRz/2spLIg= github.com/aws/aws-lambda-go v1.13.3/go.mod h1:4UKl9IzQMoD+QF79YdCuzCwp8VbmG4VAQwij/eHl5CU= @@ -68,9 +56,6 @@ github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+Ce github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM= github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw= github.com/bgentry/speakeasy v0.1.0/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kBD4zp0CCIs= -github.com/bradfitz/gomemcache v0.0.0-20170208213004-1952afaa557d/go.mod h1:PmM6Mmwb0LSuEubjR8N7PtNe1KxZLtOUHtbeikc5h60= -github.com/buger/jsonparser v0.0.0-20191204142016-1a29609e0929 h1:MW/JDk68Rny52yI0M0N+P8lySNgB+NhpI/uAmhgOhUM= -github.com/buger/jsonparser v0.0.0-20191204142016-1a29609e0929/go.mod h1:tgcrVJ81GPSF0mz+0nu1Xaz0fazGPrmmJfJtxjbHhUQ= github.com/buger/jsonparser v1.0.0 h1:etJTGF5ESxjI0Ic2UaLQs2LQQpa8G9ykQScukbh4L8A= github.com/buger/jsonparser v1.0.0/go.mod h1:tgcrVJ81GPSF0mz+0nu1Xaz0fazGPrmmJfJtxjbHhUQ= github.com/casbin/casbin/v2 v2.1.2/go.mod h1:YcPU1XXisHhLzuxH9coDNf2FbKpjGlbCg3n9yuLkIJQ= @@ -87,12 +72,8 @@ github.com/cobaugh/osrelease v0.0.0-20181218015638-a93a0a55a249 h1:R0IDH8daQ3lOD github.com/cobaugh/osrelease v0.0.0-20181218015638-a93a0a55a249/go.mod h1:EHKW9yNEYSBpTKzuu7Y9oOrft/UlzH57rMIB03oev6M= github.com/cockroachdb/datadriven v0.0.0-20190809214429-80d97fb3cbaa/go.mod h1:zn76sxSg3SzpJ0PPJaLDCu+Bu0Lg3sKTORVIj19EIF8= github.com/codahale/hdrhistogram v0.0.0-20161010025455-3a0bb77429bd/go.mod h1:sE/e/2PUdi/liOCUjSTXgM1o87ZssimdTWN964YiIeI= -github.com/containerd/containerd v1.3.6 h1:SMfcKoQyWhaRsYq7290ioC6XFcHDNcHvcEMjF6ORpac= -github.com/containerd/containerd v1.3.6/go.mod h1:bC6axHOhabU15QhwfG7w5PipXdVtMXFTttgp+kVtyUA= github.com/containerd/containerd v1.3.7 h1:eFSOChY8TTcxvkzp8g+Ov1RL0MYww7XEeK0y+zqGpVc= github.com/containerd/containerd v1.3.7/go.mod h1:bC6axHOhabU15QhwfG7w5PipXdVtMXFTttgp+kVtyUA= -github.com/containerd/fifo v0.0.0-20190226154929-a9fb20d87448 h1:PUD50EuOMkXVcpBIA/R95d56duJR9VxhwncsFbNnxW4= -github.com/containerd/fifo v0.0.0-20190226154929-a9fb20d87448/go.mod h1:ODA38xgv3Kuk8dQz2ZQXpnv/UZZUHUCL7pnLehbXgQI= github.com/containerd/fifo v0.0.0-20200410184934-f15a3290365b h1:qUtCegLdOUVfVJOw+KDg6eJyE1TGvLlkGEd1091kSSQ= github.com/containerd/fifo v0.0.0-20200410184934-f15a3290365b/go.mod h1:jPQ2IAeZRCYxpS/Cm1495vGFww6ecHmMk1YJH2Q5ln0= github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk= @@ -105,8 +86,6 @@ github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f/go.mod h1:E3G3o1h8I7cfc github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU= github.com/cpuguy83/go-md2man/v2 v2.0.0/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU= github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7DoTY= -github.com/creasty/defaults v1.3.0 h1:uG+RAxYbJgOPCOdKEcec9ZJXeva7Y6mj/8egdzwmLtw= -github.com/creasty/defaults v1.3.0/go.mod h1:CIEEvs7oIVZm30R8VxtFJs+4k201gReYyuYHJxZc68I= github.com/creasty/defaults v1.5.0 h1:DW6NAGGaKuNSKkntc8BCBrR2KOUAcXVnfcwu/LmJhaQ= github.com/creasty/defaults v1.5.0/go.mod h1:FPZ+Y0WNrbqOVw+c6av63eyHUAl6pMHZwqLPvXUZGfY= github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= @@ -124,8 +103,6 @@ github.com/docker/go-connections v0.4.0 h1:El9xVISelRB7BuFusrZozjnkIM5YnzCViNKoh github.com/docker/go-connections v0.4.0/go.mod h1:Gbd7IOopHjR8Iph03tsViu4nIes5XhDvyHbTtUxmeec= github.com/docker/go-metrics v0.0.1 h1:AgB/0SvBxihN0X8OR4SjsblXkbMvalQ8cjmtKQ2rQV8= github.com/docker/go-metrics v0.0.1/go.mod h1:cG1hvH2utMXtqgqqYE9plW6lDxS3/5ayHzueweSI3Vw= -github.com/docker/go-units v0.3.3 h1:Xk8S3Xj5sLGlG5g67hJmYMmUgXv5N4PhkjJHHqrwnTk= -github.com/docker/go-units v0.3.3/go.mod h1:fgPhTUdO+D/Jk86RDLlptpiXQzgHJF7gydDDbaIK4Dk= github.com/docker/go-units v0.4.0 h1:3uh0PgVws3nIA0Q+MwDC8yjEPf9zjRfZZWXZYDct3Tw= github.com/docker/go-units v0.4.0/go.mod h1:fgPhTUdO+D/Jk86RDLlptpiXQzgHJF7gydDDbaIK4Dk= github.com/dsnet/compress v0.0.1 h1:PlZu0n3Tuv04TzpfPbrnI0HW/YwodEXDS+oPKahKF0Q= @@ -147,26 +124,20 @@ github.com/fatih/color v1.9.0 h1:8xPHl4/q1VyqGIPif1F+1V3Y3lSmrq01EabUW3CoW5s= github.com/fatih/color v1.9.0/go.mod h1:eQcE1qtQxscV5RaZvpXrrb8Drkc3/DdQ+uUYCNjL+zU= github.com/franela/goblin v0.0.0-20200105215937-c9ffbefa60db/go.mod h1:7dvUGVsVBjqR7JHJk0brhHOZYGmfBYOrK0ZhYMEtBr4= github.com/franela/goreq v0.0.0-20171204163338-bcd34c9993f8/go.mod h1:ZhphrRTfi2rbfLwlschooIH4+wKKDR4Pdxhh+TRoA20= -github.com/fsnotify/fsnotify v1.4.3-0.20170329110642-4da3e2cfbabc/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo= +github.com/frankban/quicktest v1.10.2 h1:19ARM85nVi4xH7xPXuc5eM/udya5ieh7b/Sv+d844Tk= +github.com/frankban/quicktest v1.10.2/go.mod h1:K+q6oSqb0W0Ininfk863uOk1lMy69l/P6txr3mVT54s= github.com/fsnotify/fsnotify v1.4.7 h1:IXs+QLmnXW2CcXuY+8Mzv/fWEsPGWxqefPtCP5CnV9I= github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo= github.com/fsnotify/fsnotify v1.4.9 h1:hsms1Qyu0jgnwNXIxa+/V/PDsU6CfLf6CNO8H7IWoS4= github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ= -github.com/gabriel-vasile/mimetype v0.1.4 h1:5mcsq3+DXypREUkW+1juhjeKmE/XnWgs+paHMJn7lf8= -github.com/gabriel-vasile/mimetype v0.1.4/go.mod h1:kMJbg3SlWZCsj4R73F1WDzbT9AyGCOVmUtIxxwO5pmI= github.com/gabriel-vasile/mimetype v1.1.1 h1:qbN9MPuRf3bstHu9zkI9jDWNfH//9+9kHxr9oRBBBOA= github.com/gabriel-vasile/mimetype v1.1.1/go.mod h1:6CDPel/o/3/s4+bp6kIbsWATq8pmgOisOPG40CJa6To= github.com/gammazero/deque v0.0.0-20200227231300-1e9af0e52b46 h1:iX4+rD9Fjdx8SkmSO/O5WAIX/j79ll3kuqv5VdYt9J8= github.com/gammazero/deque v0.0.0-20200227231300-1e9af0e52b46/go.mod h1:D90+MBHVc9Sk1lJAbEVgws0eYEurY4mv2TDso3Nxh3w= github.com/gammazero/deque v0.0.0-20200721202602-07291166fe33 h1:UG4wNrJX9xSKnm/Gck5yTbxnOhpNleuE4MQRdmcGySo= github.com/gammazero/deque v0.0.0-20200721202602-07291166fe33/go.mod h1:D90+MBHVc9Sk1lJAbEVgws0eYEurY4mv2TDso3Nxh3w= -github.com/gammazero/workerpool v0.0.0-20200608033439-1a5ca90a5753 h1:oSQ61LxZkz3Z4La0O5cbyVDvLWEfbNgiD43cSPdjPQQ= -github.com/gammazero/workerpool v0.0.0-20200608033439-1a5ca90a5753/go.mod h1:/XWO2YAUUpPi3smDlFBl0vpX0JHwUomDM/oRMwRmnSs= github.com/gammazero/workerpool v1.0.0 h1:MfkJc6KL0tAmjrRDS203AZz3F+84Uod9YbL8KjpcQ00= github.com/gammazero/workerpool v1.0.0/go.mod h1:/XWO2YAUUpPi3smDlFBl0vpX0JHwUomDM/oRMwRmnSs= -github.com/garyburd/redigo v1.1.1-0.20170914051019-70e1b1943d4f/go.mod h1:NR3MbYisc3/PwhQ00EMzDiPmrwpPxAn5GI05/YaO1SY= -github.com/gbrlsnchs/jwt/v3 v3.0.0-rc.0 h1:7KeiSrO5puFH1+vdAdbpiie2TrNnkvFc/eOQzT60Z2k= -github.com/gbrlsnchs/jwt/v3 v3.0.0-rc.0/go.mod h1:D1+3UtCYAJ1os1PI+zhTVEj6Tb+IHJvXjXKz83OstmM= github.com/gbrlsnchs/jwt/v3 v3.0.0-rc.2 h1:3t7jvTkeQfk1FdP0noXSNiM6AdBokLz7QmZDmnCHAAA= github.com/gbrlsnchs/jwt/v3 v3.0.0-rc.2/go.mod h1:AncDcjXz18xetI3A6STfXq2w+LuTx8pQ8bGEwRN8zVM= github.com/ghodss/yaml v1.0.0 h1:wQHKEahhL6wmXdzwWG11gIVCkOv05bNOh+Rxn0yngAk= @@ -193,7 +164,6 @@ github.com/go-playground/validator/v10 v10.2.0/go.mod h1:uOYAAleCW8F/7oMFd6aG0GO github.com/go-playground/validator/v10 v10.3.0 h1:nZU+7q+yJoFmwvNgv/LnPUkwPal62+b2xXj0AU1Es7o= github.com/go-playground/validator/v10 v10.3.0/go.mod h1:uOYAAleCW8F/7oMFd6aG0GOhaH6EGOAJShg8Id5JGkI= github.com/go-sql-driver/mysql v1.4.0/go.mod h1:zAC/RDZ24gD3HViQzih4MyKcchzm+sOG5ZlKdlhCg5w= -github.com/go-stack/stack v1.6.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY= github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY= github.com/gogo/googleapis v1.1.0/go.mod h1:gf4bu3Q80BeJ6H1S1vYPm8/ELATdvryBaNFGgqEef3s= github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ= @@ -204,20 +174,16 @@ github.com/gogo/protobuf v1.3.1 h1:DqDEcV5aeaTmdFBePNpYsp3FlcVH/2ISVVM9Qf8PSls= github.com/gogo/protobuf v1.3.1/go.mod h1:SlYgWuQ5SjCEi6WLHjHCa1yvBfUnHcTbrrZtXPKa29o= github.com/golang/gddo v0.0.0-20190419222130-af0f2af80721 h1:KRMr9A3qfbVM7iV/WcLY/rL5LICqwMHLhwRXKu99fXw= github.com/golang/gddo v0.0.0-20190419222130-af0f2af80721/go.mod h1:xEhNfoBDX1hzLm2Nf80qUvZ2sVwoMZ8d6IE2SrsQfh4= -github.com/golang/gddo v0.0.0-20200715224205-051695c33a3f/go.mod h1:sam69Hju0uq+5uvLJUMDlsKlQ21Vrs1Kd/1YFPNYdOU= github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q= github.com/golang/groupcache v0.0.0-20160516000752-02826c3e7903/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc= github.com/golang/groupcache v0.0.0-20190129154638-5b532d6fd5ef/go.mod 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h1:kBGZzfjB9CEq2AlWe17Uuf7NDRt0dE0s8S51q0aT7Yg= @@ -257,7 +223,6 @@ github.com/gorilla/websocket v1.4.0 h1:WDFjx/TMzVgy9VdMMQi2K2Emtwi2QcUQsztZ/zLaH github.com/gorilla/websocket v1.4.0/go.mod h1:E7qHFY5m1UJ88s3WnNqhKjPHQ0heANvMoAMk2YaljkQ= github.com/gorilla/websocket v1.4.2 h1:+/TMaTYc4QFitKJxsQ7Yye35DkWvkdLcvGKqM+x0Ufc= github.com/gorilla/websocket v1.4.2/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE= -github.com/gregjones/httpcache v0.0.0-20170920190843-316c5e0ff04e/go.mod h1:FecbI9+v66THATjSRHfNgh1IVFe/9kFxbXtjV0ctIMA= github.com/grpc-ecosystem/go-grpc-middleware v1.0.0/go.mod h1:FiyG127CGDf3tlThmgyCl78X/SZQqEOJBCDaAfeWzPs= github.com/grpc-ecosystem/go-grpc-middleware v1.0.1-0.20190118093823-f849b5445de4/go.mod h1:FiyG127CGDf3tlThmgyCl78X/SZQqEOJBCDaAfeWzPs= github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0/go.mod h1:8NvIoxWQoOIhqOTXgfV/d3M/q6VIi02HzZEHgUlZvzk= @@ -279,7 +244,6 @@ github.com/hashicorp/go-version v1.2.0/go.mod h1:fltr4n8CU8Ke44wwGCBoEymUuxUHl09 github.com/hashicorp/go.net v0.0.1/go.mod h1:hjKkEWcCURg++eb33jQU7oqQcI9XDCnUzHA0oac0k90= github.com/hashicorp/golang-lru v0.5.0/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8= github.com/hashicorp/golang-lru v0.5.1/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8= -github.com/hashicorp/hcl v0.0.0-20170914154624-68e816d1c783/go.mod h1:oZtUIOe8dh44I2q6ScRibXws4Ajl+d+nod3AaR9vL5w= github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ= github.com/hashicorp/logutils v1.0.0/go.mod h1:QIAnNjmIWmVIIkWDTG1z5v++HQmx9WQRO+LraFDTW64= github.com/hashicorp/mdns v1.0.0/go.mod h1:tL+uN++7HEJ6SQLQ2/p+z2pH24WQKWjBPkE0mNTz8vQ= @@ -295,9 +259,6 @@ github.com/icza/dyno v0.0.0-20200205103839-49cb13720835 h1:f1irK5f03uGGj+FjgQfZ5 github.com/icza/dyno v0.0.0-20200205103839-49cb13720835/go.mod h1:c1tRKs5Tx7E2+uHGSyyncziFjvGpgv4H2HrqXeUQ/Uk= github.com/imdario/mergo v0.3.8 h1:CGgOkSJeqMRmt0D9XLWExdT4m4F1vd3FV3VPt+0VxkQ= github.com/imdario/mergo v0.3.8/go.mod 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-585,11 +521,11 @@ github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXf 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= -github.com/stretchr/testify v1.5.1 h1:nOGnQDM7FYENwehXlg/kFVnos3rEvtKTjRvOWSzb6H4= -github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA= +github.com/stretchr/testify v1.6.1 h1:hDPOHmpOpP40lSULcqw7IrRb/u7w6RpDC9399XyoNd0= github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= github.com/tj/assert v0.0.0-20171129193455-018094318fb0 h1:Rw8kxzWo1mr6FSaYXjQELRe88y2KdfynXdnK72rdjtA= github.com/tj/assert v0.0.0-20171129193455-018094318fb0/go.mod h1:mZ9/Rh9oLWpLLDRpvE+3b7gP/C2YyLFYxNmcLnPTMe0= +github.com/tj/assert v0.0.3 h1:Df/BlaZ20mq6kuai7f5z2TvPFiwC3xaWJSDQNiIS3Rk= github.com/tj/assert v0.0.3/go.mod h1:Ne6X72Q+TB1AteidzQncjw9PabbMp4PBMZ1k+vd1Pvk= github.com/tj/go-buffer v1.1.0/go.mod h1:iyiJpfFcR2B9sXu7KvjbT9fpM4mOelRSDTbntVj52Uc= github.com/tj/go-elastic v0.0.0-20171221160941-36157cbbebc2/go.mod h1:WjeM0Oo1eNAjXGDx2yma7uG2XoyRZTq1uv3M/o7imD0= @@ -598,7 +534,6 @@ github.com/tj/go-spin v1.1.0 h1:lhdWZsvImxvZ3q1C5OIB7d72DuOwP4O2NdBg9PyzNds= github.com/tj/go-spin v1.1.0/go.mod h1:Mg1mzmePZm4dva8Qz60H2lHwmJ2loum4VIrLgVnKwh4= github.com/tmc/grpc-websocket-proxy v0.0.0-20170815181823-89b8d40f7ca8/go.mod h1:ncp9v5uamzpCO7NfCPTXjqaC+bZgJeR0sMTm6dMHP7U= github.com/tmc/grpc-websocket-proxy v0.0.0-20190109142713-0ad062ec5ee5/go.mod h1:ncp9v5uamzpCO7NfCPTXjqaC+bZgJeR0sMTm6dMHP7U= -github.com/uber-go/zap v1.9.1/go.mod h1:GY+83l3yxBcBw2kmHu/sAWwItnTn+ynxHCRo+WiIQOY= github.com/ugorji/go v1.1.4/go.mod h1:uQMGLiO92mf5W77hV/PUCpI3pbzQx3CRekS0kk+RGrc= github.com/ugorji/go v1.1.7 h1:/68gy2h+1mWMrwZFeD1kQialdSzAb432dtpeJ42ovdo= github.com/ugorji/go v1.1.7/go.mod h1:kZn38zHttfInRq0xu/PH0az30d+z6vm202qpg1oXVMw= @@ -634,14 +569,11 @@ go.uber.org/multierr v1.5.0 h1:KCa4XfM8CWFCpxXRGok+Q0SS/0XBhMDbHHGABQLvD2A= go.uber.org/multierr v1.5.0/go.mod h1:FeouvMocqHpRaaGuG9EjoKcStLC43Zu/fmqdUMPcKYU= go.uber.org/tools v0.0.0-20190618225709-2cfd321de3ee h1:0mgffUl7nfd+FpvXMVz4IDEaUSmT1ysygQC7qYo7sG4= go.uber.org/tools v0.0.0-20190618225709-2cfd321de3ee/go.mod h1:vJERXedbb3MVM5f9Ejo0C68/HhF8uaILCdgjnY+goOA= -go.uber.org/zap v1.9.1 h1:XCJQEf3W6eZaVwhRBof6ImoYGJSITeKWsyeh3HFu/5o= -go.uber.org/zap v1.9.1/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q= go.uber.org/zap v1.10.0/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q= go.uber.org/zap v1.13.0/go.mod h1:zwrFLgMcdUuIBviXEYEH1YKNaOBnKXsx2IPda5bBwHM= go.uber.org/zap v1.15.0 h1:ZZCA22JRF2gQE5FoNmhmrf7jeJJ2uhqDUNRYKm8dvmM= go.uber.org/zap v1.15.0/go.mod h1:Mb2vm2krFEG5DV0W9qcHBYFtp/Wku1cvYaqPsS/WYfc= golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4= -golang.org/x/crypto v0.0.0-20181025213731-e84da0312774/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4= golang.org/x/crypto v0.0.0-20181029021203-45a5f77698d3/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4= golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w= golang.org/x/crypto v0.0.0-20190426145343-a29dc8fdc734/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= @@ -649,11 +581,8 @@ golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8U golang.org/x/crypto v0.0.0-20190530122614-20be4c3c3ed5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= golang.org/x/crypto v0.0.0-20190701094942-4def268fd1a4/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= golang.org/x/crypto v0.0.0-20190820162420-60c769a6c586/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= -golang.org/x/crypto v0.0.0-20190829043050-9756ffdc2472/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= golang.org/x/crypto v0.0.0-20190927123631-a832865fa7ad/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= -golang.org/x/crypto v0.0.0-20200429183012-4b2356b1ed79 h1:IaQbIIB2X/Mp/DKctl6ROxz1KyMlKp4uyvL6+kQ7C88= -golang.org/x/crypto v0.0.0-20200429183012-4b2356b1ed79/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto= golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto= golang.org/x/crypto v0.0.0-20200728195943-123391ffb6de h1:ikNHVSjEfnvz6sxdSPCaPt572qowuyMDMJLLm3Db3ig= golang.org/x/crypto v0.0.0-20200728195943-123391ffb6de/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto= @@ -662,7 +591,6 @@ golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTk golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU= golang.org/x/lint v0.0.0-20190301231843-5614ed5bae6f/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE= golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc= -golang.org/x/lint v0.0.0-20190409202823-959b441ac422/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc= golang.org/x/lint v0.0.0-20190909230951-414d861bb4ac/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc= golang.org/x/lint v0.0.0-20190930215403-16217165b5de h1:5hukYrvBGR8/eNkX5mdUezrA6JiaEZDtJb9Ei+1LlBs= golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc= @@ -690,15 +618,11 @@ golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLL golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= golang.org/x/net v0.0.0-20190813141303-74dc4d7220e7/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= -golang.org/x/net v0.0.0-20200425230154-ff2c4b7c35a0 h1:Jcxah/M+oLZ/R4/z5RzfPzGbPXnVDPkEDtf2JnuxN+U= -golang.org/x/net v0.0.0-20200425230154-ff2c4b7c35a0/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A= golang.org/x/net v0.0.0-20200625001655-4c5254603344/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA= golang.org/x/net v0.0.0-20200707034311-ab3426394381 h1:VXak5I6aEWmAXeQjA+QSZzlgNrpq9mjcfDemuexIKsU= golang.org/x/net v0.0.0-20200707034311-ab3426394381/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA= -golang.org/x/oauth2 v0.0.0-20170912212905-13449ad91cb2/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U= golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U= golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw= -golang.org/x/sync v0.0.0-20170517211232-f52d1811a629/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f h1:wMNYb4v58l5UBM7MYRLPG6ZhfOqbKu7X5eyFl8ZhKvA= golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= @@ -707,8 +631,6 @@ golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6/go.mod h1:RxMgew5VJxzue5/jJ golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e h1:vcxGaoTs7kV8m5Np9uUNQin4BrLOthgV7252N8V+FwY= golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= -golang.org/x/sync v0.0.0-20200317015054-43a5402ce75a h1:WXEvlFVvvGxCJLG6REjsT03iWnKLEWinaScsxF2Vm2o= -golang.org/x/sync v0.0.0-20200317015054-43a5402ce75a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sync v0.0.0-20200625203802-6e8e738ad208 h1:qwRHBd0NqMbJxfbotnDhm2ByMI1Shq4Y6oRJo21SGJA= golang.org/x/sync v0.0.0-20200625203802-6e8e738ad208/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sys v0.0.0-20180823144017-11551d06cbcc/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= @@ -737,19 +659,15 @@ golang.org/x/sys v0.0.0-20200106162015-b016eb3dc98e/go.mod h1:h1NjWce9XRLGQEsW7w golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= -golang.org/x/sys v0.0.0-20200509044756-6aff5f38e54f h1:mOhmO9WsBaJCNmaZHPtHs9wOcdqdKCjF6OPJlmDM3KI= -golang.org/x/sys v0.0.0-20200509044756-6aff5f38e54f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20200615200032-f1bc736245b1/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20200625212154-ddb9806d33ae h1:Ih9Yo4hSPImZOpfGuA4bR/ORKTAbhZo2AbWNRCnevdo= golang.org/x/sys v0.0.0-20200625212154-ddb9806d33ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= -golang.org/x/sys v0.0.0-20200806125547-5acd03effb82 h1:6cBnXxYO+CiRVrChvCosSv7magqTPbyAgz1M8iOv5wM= -golang.org/x/sys v0.0.0-20200806125547-5acd03effb82/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg= golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ= golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs= golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk= golang.org/x/text v0.3.3 h1:cokOdA+Jmi5PJGXLlLllQSgYigAEfHXJAERHVMaCc2k= golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= -golang.org/x/time v0.0.0-20170424234030-8be79e1e0910/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ= golang.org/x/time v0.0.0-20180412165947-fbb02b2291d2/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ= golang.org/x/time v0.0.0-20190308202827-9d24e82272b4 h1:SvFZT6jyqRaOeXpc5h/JSfZenJ2O330aBsf7JfSUXmQ= golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ= @@ -767,7 +685,6 @@ golang.org/x/tools v0.0.0-20190312170243-e65039ee4138/go.mod h1:LCzVGOaR6xXOjkQ3 golang.org/x/tools v0.0.0-20190328211700-ab21143f2384/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs= golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q= golang.org/x/tools v0.0.0-20190621195816-6e04913cbbac/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc= -golang.org/x/tools v0.0.0-20190710153321-831012c29e42/go.mod h1:jcCCGcm9btYwXyDqrUWc6MKQKKGJCWEQ3AfLSRIbEuI= golang.org/x/tools v0.0.0-20190927191325-030b2cf1153e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= golang.org/x/tools v0.0.0-20191029041327-9cc4af7d6b2c/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= golang.org/x/tools v0.0.0-20191029190741-b9c20aec41a5 h1:hKsoRgsbwY1NafxrwTs+k64bikrLBkAgPir1TNCj3Zs= @@ -778,7 +695,6 @@ golang.org/x/tools v0.0.0-20200103221440-774c71fcf114/go.mod h1:TB2adYChydJhpapK golang.org/x/tools v0.0.0-20200130002326-2f3ba24bd6e7/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28= golang.org/x/tools v0.0.0-20200509030707-2212a7e161a5 h1:MeC2gMlMdkd67dn17MEby3rGXRxZtWeiRXOnISfTQ74= golang.org/x/tools v0.0.0-20200509030707-2212a7e161a5/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE= -golang.org/x/tools/gopls v0.1.3/go.mod h1:vrCQzOKxvuiZLjCKSmbbov04oeBQQOb4VQqwYK2PWIY= golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7 h1:9zdDQZ7Thm29KFXgAX/+yaf3eVbP7djjWp/dXAppNCc= golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= @@ -786,13 +702,10 @@ golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IV golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE= golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= -google.golang.org/api v0.0.0-20170921000349-586095a6e407/go.mod h1:4mhQ8q/RsB7i+udVvVy5NUi08OU8ZlA0gRVgrF7VFY0= google.golang.org/api v0.3.1/go.mod h1:6wY9I6uQWHQ8EM57III9mq/AjF+i8G65rmVagqKMtkk= google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM= google.golang.org/appengine v1.2.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4= google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4= -google.golang.org/appengine v1.6.5/go.mod h1:8WjMMxjGQR8xUklV/ARdw2HLXBOI7O7uCIDZVag1xfc= -google.golang.org/genproto v0.0.0-20170918111702-1e559d0a00ee/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc= google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8 h1:Nw54tB0rB7hY/N0NQvRW8DG4Yk3Q6T9cu9RcFQDu1tc= 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= @@ -802,7 +715,6 @@ google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98 google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo= google.golang.org/genproto v0.0.0-20200806141610-86f49bd18e98 h1:LCO0fg4kb6WwkXQXRQQgUYsFeFb5taTX5WAx5O/Vt28= google.golang.org/genproto v0.0.0-20200806141610-86f49bd18e98/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no= -google.golang.org/grpc v1.2.1-0.20170921194603-d4b75ebd4f9f/go.mod h1:yo6s7OP7yaDglbqo1J04qKzAhqBH6lvTonzMVmEdcZw= google.golang.org/grpc v1.17.0/go.mod h1:6QZJwpn2B+Zp71q/5VxRsJ6NXXVCE5NRUHRo+f3cWCs= google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c= google.golang.org/grpc v1.20.0/go.mod h1:chYK+tFQF0nDUGJgXMSgLCQk3phJEuONr2DCgLDdAQM= @@ -840,8 +752,6 @@ gopkg.in/cheggaaa/pb.v1 v1.0.25/go.mod h1:V/YB90LKu/1FcN3WVnfiiE5oMCibMjukxqG/qS gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI= gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys= gopkg.in/gcfg.v1 v1.2.3/go.mod h1:yesOnuUOFQAhST5vPY4nbZsb/huCgGGXlipJsBn0b3o= -gopkg.in/ini.v1 v1.51.0 h1:AQvPpx3LzTDM0AjnIRlVFwFFGC+npRopjZxLJj6gdno= -gopkg.in/ini.v1 v1.51.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k= gopkg.in/ini.v1 v1.57.0 h1:9unxIsFcTt4I55uWluz+UmL95q4kdJ0buvQ1ZIqVQww= gopkg.in/ini.v1 v1.57.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k= gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo= @@ -858,6 +768,7 @@ gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= gopkg.in/yaml.v2 v2.3.0 h1:clyUAQHOM3G0M3f5vQj7LuJrETvjVot3Z5el9nffUtU= gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= +gopkg.in/yaml.v3 v3.0.0-20200605160147-a5ece683394c h1:grhR+C34yXImVGp7EzNk+DTIk+323eIUWOmEevy6bDo= gopkg.in/yaml.v3 v3.0.0-20200605160147-a5ece683394c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= gotest.tools v2.2.0+incompatible h1:VsBPFP1AI068pPrMxtb/S8Zkgf9xEmTLJjfM+P5UIEo= gotest.tools v2.2.0+incompatible/go.mod h1:DsYFclhRJ6vuDpmuTbkuFWG+y2sxOXAzmJt81HFBacw= diff --git a/sftp/errors.go b/sftp/errors.go new file mode 100644 index 0000000..f69cd32 --- /dev/null +++ b/sftp/errors.go @@ -0,0 +1,19 @@ +package sftp + +type fxerr uint32 + +const ( + // Extends the default SFTP server to return a quota exceeded error to the client. + // + // @see https://tools.ietf.org/id/draft-ietf-secsh-filexfer-13.txt + ErrSshQuotaExceeded = fxerr(15) +) + +func (e fxerr) Error() string { + switch e { + case ErrSshQuotaExceeded: + return "Quota Exceeded" + default: + return "Failure" + } +} \ No newline at end of file diff --git a/sftp/handler.go b/sftp/handler.go new file mode 100644 index 0000000..4a53503 --- /dev/null +++ b/sftp/handler.go @@ -0,0 +1,380 @@ +package sftp + +import ( + "github.com/apex/log" + "github.com/patrickmn/go-cache" + "github.com/pkg/errors" + "github.com/pkg/sftp" + "io" + "io/ioutil" + "os" + "path/filepath" + "sync" +) + +type FileSystem struct { + UUID string + Permissions []string + ReadOnly bool + User SftpUser + Cache *cache.Cache + + PathValidator func(fs FileSystem, p string) (string, error) + HasDiskSpace func(fs FileSystem) bool + + logger *log.Entry + lock sync.Mutex +} + +func (fs FileSystem) buildPath(p string) (string, error) { + return fs.PathValidator(fs, p) +} + +const ( + PermissionFileRead = "file.read" + PermissionFileReadContent = "file.read-content" + PermissionFileCreate = "file.create" + PermissionFileUpdate = "file.update" + PermissionFileDelete = "file.delete" +) + +// Fileread creates a reader for a file on the system and returns the reader back. +func (fs FileSystem) Fileread(request *sftp.Request) (io.ReaderAt, error) { + // Check first if the user can actually open and view a file. This permission is named + // really poorly, but it is checking if they can read. There is an addition permission, + // "save-files" which determines if they can write that file. + if !fs.can(PermissionFileReadContent) { + return nil, sftp.ErrSshFxPermissionDenied + } + + p, err := fs.buildPath(request.Filepath) + if err != nil { + return nil, sftp.ErrSshFxNoSuchFile + } + + fs.lock.Lock() + defer fs.lock.Unlock() + + if _, err := os.Stat(p); os.IsNotExist(err) { + return nil, sftp.ErrSshFxNoSuchFile + } else if err != nil { + fs.logger.WithField("error", errors.WithStack(err)).Error("error while processing file stat") + + return nil, sftp.ErrSshFxFailure + } + + file, err := os.Open(p) + if err != nil { + fs.logger.WithField("source", p).WithField("error", errors.WithStack(err)).Error("could not open file for reading") + return nil, sftp.ErrSshFxFailure + } + + return file, nil +} + +// Filewrite handles the write actions for a file on the system. +func (fs FileSystem) Filewrite(request *sftp.Request) (io.WriterAt, error) { + if fs.ReadOnly { + return nil, sftp.ErrSshFxOpUnsupported + } + + p, err := fs.buildPath(request.Filepath) + if err != nil { + return nil, sftp.ErrSshFxNoSuchFile + } + + var l = fs.logger.WithField("source", p) + + // If the user doesn't have enough space left on the server it should respond with an + // error since we won't be letting them write this file to the disk. + if !fs.HasDiskSpace(fs) { + return nil, ErrSshQuotaExceeded + } + + fs.lock.Lock() + defer fs.lock.Unlock() + + stat, statErr := os.Stat(p) + // If the file doesn't exist we need to create it, as well as the directory pathway + // leading up to where that file will be created. + if os.IsNotExist(statErr) { + // This is a different pathway than just editing an existing file. If it doesn't exist already + // we need to determine if this user has permission to create files. + if !fs.can(PermissionFileCreate) { + return nil, sftp.ErrSshFxPermissionDenied + } + + // Create all of the directories leading up to the location where this file is being created. + if err := os.MkdirAll(filepath.Dir(p), 0755); err != nil { + l.WithFields(log.Fields{ + "path": filepath.Dir(p), + "error": errors.WithStack(err), + }).Error("error making path for file") + + return nil, sftp.ErrSshFxFailure + } + + file, err := os.Create(p) + if err != nil { + l.WithField("error", errors.WithStack(err)).Error("failed to create file") + + return nil, sftp.ErrSshFxFailure + } + + // Not failing here is intentional. We still made the file, it is just owned incorrectly + // and will likely cause some issues. + if err := os.Chown(p, fs.User.Uid, fs.User.Gid); err != nil { + l.WithField("error", errors.WithStack(err)).Warn("failed to set permissions on file") + } + + return file, nil + } + + // If the stat error isn't about the file not existing, there is some other issue + // at play and we need to go ahead and bail out of the process. + if statErr != nil { + l.WithField("error", errors.WithStack(statErr)).Error("encountered error performing file stat") + + return nil, sftp.ErrSshFxFailure + } + + // If we've made it here it means the file already exists and we don't need to do anything + // fancy to handle it. Just pass over the request flags so the system knows what the end + // goal with the file is going to be. + // + // But first, check that the user has permission to save modified files. + if !fs.can(PermissionFileUpdate) { + return nil, sftp.ErrSshFxPermissionDenied + } + + // Not sure this would ever happen, but lets not find out. + if stat.IsDir() { + return nil, sftp.ErrSshFxOpUnsupported + } + + file, err := os.Create(p) + if err != nil { + // Prevent errors if the file is deleted between the stat and this call. + if os.IsNotExist(err) { + return nil, sftp.ErrSSHFxNoSuchFile + } + + l.WithField("flags", request.Flags).WithField("error", errors.WithStack(err)).Error("failed to open existing file on system") + return nil, sftp.ErrSshFxFailure + } + + // Not failing here is intentional. We still made the file, it is just owned incorrectly + // and will likely cause some issues. + if err := os.Chown(p, fs.User.Uid, fs.User.Gid); err != nil { + l.WithField("error", errors.WithStack(err)).Warn("error chowning file") + } + + return file, nil +} + +// Filecmd hander for basic SFTP system calls related to files, but not anything to do with reading +// or writing to those files. +func (fs FileSystem) Filecmd(request *sftp.Request) error { + if fs.ReadOnly { + return sftp.ErrSshFxOpUnsupported + } + + p, err := fs.buildPath(request.Filepath) + if err != nil { + return sftp.ErrSshFxNoSuchFile + } + + var l = fs.logger.WithField("source", p) + + var target string + // If a target is provided in this request validate that it is going to the correct + // location for the server. If it is not, return an operation unsupported error. This + // is maybe not the best error response, but its not wrong either. + if request.Target != "" { + target, err = fs.buildPath(request.Target) + if err != nil { + return sftp.ErrSshFxOpUnsupported + } + } + + switch request.Method { + case "Setstat": + if !fs.can(PermissionFileUpdate) { + return sftp.ErrSshFxPermissionDenied + } + + var mode os.FileMode = 0644 + // If the client passed a valid file permission use that, otherwise use the + // default of 0644 set above. + if request.Attributes().FileMode().Perm() != 0000 { + mode = request.Attributes().FileMode().Perm() + } + + // Force directories to be 0755 + if request.Attributes().FileMode().IsDir() { + mode = 0755 + } + + if err := os.Chmod(p, mode); err != nil { + if os.IsNotExist(err) { + return sftp.ErrSSHFxNoSuchFile + } + + l.WithField("error", errors.WithStack(err)).Error("failed to perform setstat on item") + return sftp.ErrSSHFxFailure + } + return nil + case "Rename": + if !fs.can(PermissionFileUpdate) { + return sftp.ErrSSHFxPermissionDenied + } + + if err := os.Rename(p, target); err != nil { + if os.IsNotExist(err) { + return sftp.ErrSSHFxNoSuchFile + } + + l.WithField("target", target).WithField("error", errors.WithStack(err)).Error("failed to rename file") + + return sftp.ErrSshFxFailure + } + + break + case "Rmdir": + if !fs.can(PermissionFileDelete) { + return sftp.ErrSshFxPermissionDenied + } + + if err := os.RemoveAll(p); err != nil { + l.WithField("error", errors.WithStack(err)).Error("failed to remove directory") + + return sftp.ErrSshFxFailure + } + + return sftp.ErrSshFxOk + case "Mkdir": + if !fs.can(PermissionFileCreate) { + return sftp.ErrSshFxPermissionDenied + } + + if err := os.MkdirAll(p, 0755); err != nil { + l.WithField("error", errors.WithStack(err)).Error("failed to create directory") + + return sftp.ErrSshFxFailure + } + + break + case "Symlink": + if !fs.can(PermissionFileCreate) { + return sftp.ErrSshFxPermissionDenied + } + + if err := os.Symlink(p, target); err != nil { + l.WithField("target", target).WithField("error", errors.WithStack(err)).Error("failed to create symlink") + + return sftp.ErrSshFxFailure + } + + break + case "Remove": + if !fs.can(PermissionFileDelete) { + return sftp.ErrSshFxPermissionDenied + } + + if err := os.Remove(p); err != nil { + if os.IsNotExist(err) { + return sftp.ErrSSHFxNoSuchFile + } + + l.WithField("error", errors.WithStack(err)).Error("failed to remove a file") + + return sftp.ErrSshFxFailure + } + + return sftp.ErrSshFxOk + default: + return sftp.ErrSshFxOpUnsupported + } + + var fileLocation = p + if target != "" { + fileLocation = target + } + + // Not failing here is intentional. We still made the file, it is just owned incorrectly + // and will likely cause some issues. There is no logical check for if the file was removed + // because both of those cases (Rmdir, Remove) have an explicit return rather than break. + if err := os.Chown(fileLocation, fs.User.Uid, fs.User.Gid); err != nil { + l.WithField("error", errors.WithStack(err)).Warn("error chowning file") + } + + return sftp.ErrSshFxOk +} + +// Filelist is the handler for SFTP filesystem list calls. This will handle calls to list the contents of +// a directory as well as perform file/folder stat calls. +func (fs FileSystem) Filelist(request *sftp.Request) (sftp.ListerAt, error) { + p, err := fs.buildPath(request.Filepath) + if err != nil { + return nil, sftp.ErrSshFxNoSuchFile + } + + switch request.Method { + case "List": + if !fs.can(PermissionFileRead) { + return nil, sftp.ErrSshFxPermissionDenied + } + + files, err := ioutil.ReadDir(p) + if err != nil { + fs.logger.WithField("error", errors.WithStack(err)).Error("error while listing directory") + + return nil, sftp.ErrSshFxFailure + } + + return ListerAt(files), nil + case "Stat": + if !fs.can(PermissionFileRead) { + return nil, sftp.ErrSshFxPermissionDenied + } + + s, err := os.Stat(p) + if os.IsNotExist(err) { + return nil, sftp.ErrSshFxNoSuchFile + } else if err != nil { + fs.logger.WithField("source", p).WithField("error", errors.WithStack(err)).Error("error performing stat on file") + + return nil, sftp.ErrSshFxFailure + } + + return ListerAt([]os.FileInfo{s}), nil + default: + // Before adding readlink support we need to evaluate any potential security risks + // as a result of navigating around to a location that is outside the home directory + // for the logged in user. I don't forsee it being much of a problem, but I do want to + // check it out before slapping some code here. Until then, we'll just return an + // unsupported response code. + return nil, sftp.ErrSshFxOpUnsupported + } +} + +// Determines if a user has permission to perform a specific action on the SFTP server. These +// permissions are defined and returned by the Panel API. +func (fs FileSystem) can(permission string) bool { + // Server owners and super admins have their permissions returned as '[*]' via the Panel + // API, so for the sake of speed do an initial check for that before iterating over the + // entire array of permissions. + if len(fs.Permissions) == 1 && fs.Permissions[0] == "*" { + return true + } + + // Not the owner or an admin, loop over the permissions that were returned to determine + // if they have the passed permission. + for _, p := range fs.Permissions { + if p == permission { + return true + } + } + + return false +} diff --git a/sftp/lister.go b/sftp/lister.go new file mode 100644 index 0000000..129020a --- /dev/null +++ b/sftp/lister.go @@ -0,0 +1,22 @@ +package sftp + +import ( + "io" + "os" +) + +type ListerAt []os.FileInfo + +// Returns the number of entries copied and an io.EOF error if we made it to the end of the file list. +// Take a look at the pkg/sftp godoc for more information about how this function should work. +func (l ListerAt) ListAt(f []os.FileInfo, offset int64) (int, error) { + if offset >= int64(len(l)) { + return 0, io.EOF + } + + if n := copy(f, l[offset:]); n < len(f) { + return n, io.EOF + } else { + return n, nil + } +} diff --git a/sftp/server.go b/sftp/server.go index 543365a..f5a77da 100644 --- a/sftp/server.go +++ b/sftp/server.go @@ -1,118 +1,238 @@ package sftp import ( + "crypto/rand" + "crypto/rsa" + "crypto/x509" + "encoding/pem" + "fmt" "github.com/apex/log" - "github.com/pkg/errors" - "github.com/pterodactyl/sftp-server" + "github.com/patrickmn/go-cache" + "github.com/pkg/sftp" "github.com/pterodactyl/wings/api" - "github.com/pterodactyl/wings/config" - "github.com/pterodactyl/wings/server" - "go.uber.org/zap" - "regexp" + "golang.org/x/crypto/ssh" + "io" + "io/ioutil" + "net" + "os" + "path" + "strings" + "time" ) -func Initialize(config *config.Configuration) error { - c := &sftp_server.Server{ - User: sftp_server.SftpUser{ - Uid: config.System.User.Uid, - Gid: config.System.User.Gid, - }, - Settings: sftp_server.Settings{ - BasePath: config.System.Data, - ReadOnly: config.System.Sftp.ReadOnly, - BindAddress: config.System.Sftp.Address, - BindPort: config.System.Sftp.Port, - }, - CredentialValidator: validateCredentials, - PathValidator: validatePath, - DiskSpaceValidator: validateDiskSpace, - } +type Settings struct { + BasePath string + ReadOnly bool + BindPort int + BindAddress string +} - if err := sftp_server.New(c); err != nil { - return err - } +type SftpUser struct { + Uid int + Gid int +} - c.ConfigureLogger(func() *zap.SugaredLogger { - return zap.S().Named("sftp") - }) +type Server struct { + cache *cache.Cache - // Initialize the SFTP server in a background thread since this is - // a long running operation. - go func(instance *sftp_server.Server) { - if err := c.Initialize(); err != nil { - log.WithField("subsystem", "sftp").WithField("error", errors.WithStack(err)).Error("failed to initialize SFTP subsystem") - } - }(c) + Settings Settings + User SftpUser + + PathValidator func(fs FileSystem, p string) (string, error) + DiskSpaceValidator func(fs FileSystem) bool + + // Validator function that is called when a user connects to the server. This should + // check against whatever system is desired to confirm if the given username and password + // combination is valid. If so, should return an authentication response. + CredentialValidator func(r api.SftpAuthRequest) (*api.SftpAuthResponse, error) +} + +// Create a new server configuration instance. +func New(c *Server) error { + c.cache = cache.New(5*time.Minute, 10*time.Minute) return nil } -func validatePath(fs sftp_server.FileSystem, p string) (string, error) { - s := server.GetServers().Find(func(server *server.Server) bool { - return server.Id() == fs.UUID - }) +// Initialize the SFTP server and add a persistent listener to handle inbound SFTP connections. +func (c *Server) Initialize() error { + serverConfig := &ssh.ServerConfig{ + NoClientAuth: false, + MaxAuthTries: 6, + PasswordCallback: func(conn ssh.ConnMetadata, pass []byte) (*ssh.Permissions, error) { + resp, err := c.CredentialValidator(api.SftpAuthRequest{ + User: conn.User(), + Pass: string(pass), + IP: conn.RemoteAddr().String(), + SessionID: conn.SessionID(), + ClientVersion: conn.ClientVersion(), + }) - if s == nil { - return "", errors.New("no server found with that UUID") + if err != nil { + return nil, err + } + + sshPerm := &ssh.Permissions{ + Extensions: map[string]string{ + "uuid": resp.Server, + "user": conn.User(), + "permissions": strings.Join(resp.Permissions, ","), + }, + } + + return sshPerm, nil + }, } - return s.Filesystem.SafePath(p) -} - -func validateDiskSpace(fs sftp_server.FileSystem) bool { - s := server.GetServers().Find(func(server *server.Server) bool { - return server.Id() == fs.UUID - }) - - if s == nil { - return false + if _, err := os.Stat(path.Join(c.Settings.BasePath, ".sftp/id_rsa")); os.IsNotExist(err) { + if err := c.generatePrivateKey(); err != nil { + return err + } + } else if err != nil { + return err } - return s.Filesystem.HasSpaceAvailable() -} - -var validUsernameRegexp = regexp.MustCompile(`^(?i)(.+)\.([a-z0-9]{8})$`) - -// Validates a set of credentials for a SFTP login aganist Pterodactyl Panel and returns -// the server's UUID if the credentials were valid. -func validateCredentials(c sftp_server.AuthenticationRequest) (*sftp_server.AuthenticationResponse, error) { - log.WithFields(log.Fields{"subsystem": "sftp", "username": c.User}).Debug("validating credentials for SFTP connection") - - f := log.Fields{ - "subsystem": "sftp", - "username": c.User, - "ip": c.IP, - } - - // If the username doesn't meet the expected format that the Panel would even recognize just go ahead - // and bail out of the process here to avoid accidentially brute forcing the panel if a bot decides - // to connect to spam username attempts. - if !validUsernameRegexp.MatchString(c.User) { - log.WithFields(f).Warn("failed to validate user credentials (invalid format)") - - return nil, new(sftp_server.InvalidCredentialsError) - } - - resp, err := api.NewRequester().ValidateSftpCredentials(c) + privateBytes, err := ioutil.ReadFile(path.Join(c.Settings.BasePath, ".sftp/id_rsa")) if err != nil { - if sftp_server.IsInvalidCredentialsError(err) { - log.WithFields(f).Warn("failed to validate user credentials (invalid username or password)") - } else { - log.WithFields(f).Error("encountered an error while trying to validate user credentials") + return err + } + + private, err := ssh.ParsePrivateKey(privateBytes) + if err != nil { + return err + } + + // Add our private key to the server configuration. + serverConfig.AddHostKey(private) + + listener, err := net.Listen("tcp", fmt.Sprintf("%s:%d", c.Settings.BindAddress, c.Settings.BindPort)) + if err != nil { + return err + } + + log.WithField("host", c.Settings.BindAddress).WithField("port", c.Settings.BindPort).Info("sftp subsystem listening for connections") + + for { + conn, _ := listener.Accept() + if conn != nil { + go c.AcceptInboundConnection(conn, serverConfig) + } + } +} + +// Handles an inbound connection to the instance and determines if we should serve the request +// or not. +func (c Server) AcceptInboundConnection(conn net.Conn, config *ssh.ServerConfig) { + defer conn.Close() + + // Before beginning a handshake must be performed on the incoming net.Conn + sconn, chans, reqs, err := ssh.NewServerConn(conn, config) + if err != nil { + return + } + defer sconn.Close() + + go ssh.DiscardRequests(reqs) + + for newChannel := range chans { + // If its not a session channel we just move on because its not something we + // know how to handle at this point. + if newChannel.ChannelType() != "session" { + newChannel.Reject(ssh.UnknownChannelType, "unknown channel type") + continue } - return resp, err + channel, requests, err := newChannel.Accept() + if err != nil { + continue + } + + // Channels have a type that is dependent on the protocol. For SFTP this is "subsystem" + // with a payload that (should) be "sftp". Discard anything else we receive ("pty", "shell", etc) + go func(in <-chan *ssh.Request) { + for req := range in { + ok := false + + switch req.Type { + case "subsystem": + if string(req.Payload[4:]) == "sftp" { + ok = true + } + } + + req.Reply(ok, nil) + } + }(requests) + + // Configure the user's home folder for the rest of the request cycle. + if sconn.Permissions.Extensions["uuid"] == "" { + continue + } + + // Create a new handler for the currently logged in user's server. + fs := c.createHandler(sconn) + + // Create the server instance for the channel using the filesystem we created above. + server := sftp.NewRequestServer(channel, fs) + + if err := server.Serve(); err == io.EOF { + server.Close() + } } - - s := server.GetServers().Find(func(server *server.Server) bool { - return server.Id() == resp.Server - }) - - if s == nil { - return resp, errors.New("no matching server with UUID found") - } - - s.Log().WithFields(f).Debug("credentials successfully validated and matched user to server instance") - - return resp, err +} + +// Creates a new SFTP handler for a given server. The directory argument should +// be the base directory for a server. All actions done on the server will be +// relative to that directory, and the user will not be able to escape out of it. +func (c Server) createHandler(sc *ssh.ServerConn) sftp.Handlers { + p := FileSystem{ + UUID: sc.Permissions.Extensions["uuid"], + Permissions: strings.Split(sc.Permissions.Extensions["permissions"], ","), + ReadOnly: c.Settings.ReadOnly, + Cache: c.cache, + User: c.User, + HasDiskSpace: c.DiskSpaceValidator, + PathValidator: c.PathValidator, + logger: log.WithFields(log.Fields{ + "subsystem": "sftp", + "username": sc.User(), + "ip": sc.RemoteAddr(), + }), + } + + return sftp.Handlers{ + FileGet: p, + FilePut: p, + FileCmd: p, + FileList: p, + } +} + +// Generates a private key that will be used by the SFTP server. +func (c Server) generatePrivateKey() error { + key, err := rsa.GenerateKey(rand.Reader, 2048) + if err != nil { + return err + } + + if err := os.MkdirAll(path.Join(c.Settings.BasePath, ".sftp"), 0755); err != nil { + return err + } + + o, err := os.OpenFile(path.Join(c.Settings.BasePath, ".sftp/id_rsa"), os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0600) + if err != nil { + return err + } + defer o.Close() + + pkey := &pem.Block{ + Type: "RSA PRIVATE KEY", + Bytes: x509.MarshalPKCS1PrivateKey(key), + } + + if err := pem.Encode(o, pkey); err != nil { + return err + } + + return nil } diff --git a/sftp/sftp.go b/sftp/sftp.go new file mode 100644 index 0000000..9833dd9 --- /dev/null +++ b/sftp/sftp.go @@ -0,0 +1,97 @@ +package sftp + +import ( + "github.com/apex/log" + "github.com/pkg/errors" + "github.com/pterodactyl/wings/api" + "github.com/pterodactyl/wings/config" + "github.com/pterodactyl/wings/server" +) + +var noMatchingServerError = errors.New("no matching server with that UUID was found") + +func Initialize(config config.SystemConfiguration) error { + s := &Server{ + User: SftpUser{ + Uid: config.User.Uid, + Gid: config.User.Gid, + }, + Settings: Settings{ + BasePath: config.Data, + ReadOnly: config.Sftp.ReadOnly, + BindAddress: config.Sftp.Address, + BindPort: config.Sftp.Port, + }, + CredentialValidator: validateCredentials, + PathValidator: validatePath, + DiskSpaceValidator: validateDiskSpace, + } + + if err := New(s); err != nil { + return errors.WithStack(err) + } + + // Initialize the SFTP server in a background thread since this is + // a long running operation. + go func(s *Server) { + if err := s.Initialize(); err != nil { + log.WithField("subsystem", "sftp").WithField("error", errors.WithStack(err)).Error("failed to initialize SFTP subsystem") + } + }(s) + + return nil +} + +func validatePath(fs FileSystem, p string) (string, error) { + s := server.GetServers().Find(func(server *server.Server) bool { + return server.Id() == fs.UUID + }) + + if s == nil { + return "", noMatchingServerError + } + + return s.Filesystem.SafePath(p) +} + +func validateDiskSpace(fs FileSystem) bool { + s := server.GetServers().Find(func(server *server.Server) bool { + return server.Id() == fs.UUID + }) + + if s == nil { + return false + } + + return s.Filesystem.HasSpaceAvailable() +} + +// Validates a set of credentials for a SFTP login aganist Pterodactyl Panel and returns +// the server's UUID if the credentials were valid. +func validateCredentials(c api.SftpAuthRequest) (*api.SftpAuthResponse, error) { + f := log.Fields{"subsystem": "sftp", "username": c.User, "ip": c.IP} + + log.WithFields(f).Debug("validating credentials for SFTP connection") + resp, err := api.NewRequester().ValidateSftpCredentials(c) + if err != nil { + if api.IsInvalidCredentialsError(err) { + log.WithFields(f).Warn("failed to validate user credentials (invalid username or password)") + } else { + log.WithFields(f).Error("encountered an error while trying to validate user credentials") + } + + return resp, err + } + + s := server.GetServers().Find(func(server *server.Server) bool { + return server.Id() == resp.Server + }) + + if s == nil { + return resp, noMatchingServerError + } + + s.Log().WithFields(f).Debug("credentials successfully validated and matched user to server instance") + + return resp, err +}