sftp: fix "file not found" errors for read once servers - fixes #5077
It introduces a new flag --sftp-disable-concurrent-reads to stop the problematic behaviour in the SFTP library for read-once servers. This upgrades the sftp library to v1.13.0 which has the fix.
This commit is contained in:
Nick Craig-Wood
parent
83368998be
commit
713f8f357d
3 changed files with 55 additions and 26 deletions
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@ -204,6 +204,25 @@ Fstat instead of Stat which is called on an already open file handle.
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It has been found that this helps with IBM Sterling SFTP servers which have
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"extractability" level set to 1 which means only 1 file can be opened at
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any given time.
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`,
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Advanced: true,
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}, {
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Name: "disable_concurrent_reads",
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Default: false,
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Help: `If set don't use concurrent reads
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Normally concurrent reads are safe to use and not using them will
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degrade performance, so this option is disabled by default.
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Some servers limit the amount number of times a file can be
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downloaded. Using concurrent reads can trigger this limit, so if you
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have a server which returns
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Failed to copy: file does not exist
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Then you may need to enable this flag.
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If concurrent reads are disabled, the use_fstat option is ignored.
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`,
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Advanced: true,
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}, {
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@ -224,28 +243,29 @@ Set to 0 to keep connections indefinitely.
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// Options defines the configuration for this backend
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type Options struct {
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Host string `config:"host"`
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User string `config:"user"`
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Port string `config:"port"`
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Pass string `config:"pass"`
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KeyPem string `config:"key_pem"`
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KeyFile string `config:"key_file"`
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KeyFilePass string `config:"key_file_pass"`
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PubKeyFile string `config:"pubkey_file"`
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KnownHostsFile string `config:"known_hosts_file"`
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KeyUseAgent bool `config:"key_use_agent"`
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UseInsecureCipher bool `config:"use_insecure_cipher"`
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DisableHashCheck bool `config:"disable_hashcheck"`
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AskPassword bool `config:"ask_password"`
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PathOverride string `config:"path_override"`
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SetModTime bool `config:"set_modtime"`
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Md5sumCommand string `config:"md5sum_command"`
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Sha1sumCommand string `config:"sha1sum_command"`
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SkipLinks bool `config:"skip_links"`
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Subsystem string `config:"subsystem"`
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ServerCommand string `config:"server_command"`
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UseFstat bool `config:"use_fstat"`
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IdleTimeout fs.Duration `config:"idle_timeout"`
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Host string `config:"host"`
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User string `config:"user"`
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Port string `config:"port"`
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Pass string `config:"pass"`
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KeyPem string `config:"key_pem"`
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KeyFile string `config:"key_file"`
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KeyFilePass string `config:"key_file_pass"`
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PubKeyFile string `config:"pubkey_file"`
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KnownHostsFile string `config:"known_hosts_file"`
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KeyUseAgent bool `config:"key_use_agent"`
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UseInsecureCipher bool `config:"use_insecure_cipher"`
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DisableHashCheck bool `config:"disable_hashcheck"`
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AskPassword bool `config:"ask_password"`
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PathOverride string `config:"path_override"`
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SetModTime bool `config:"set_modtime"`
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Md5sumCommand string `config:"md5sum_command"`
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Sha1sumCommand string `config:"sha1sum_command"`
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SkipLinks bool `config:"skip_links"`
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Subsystem string `config:"subsystem"`
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ServerCommand string `config:"server_command"`
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UseFstat bool `config:"use_fstat"`
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DisableConcurrentReads bool `config:"disable_concurrent_reads"`
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IdleTimeout fs.Duration `config:"idle_timeout"`
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}
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// Fs stores the interface to the remote SFTP files
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@ -373,7 +393,10 @@ func (f *Fs) newSftpClient(conn *ssh.Client, opts ...sftp.ClientOption) (*sftp.C
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}
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}
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opts = opts[:len(opts):len(opts)] // make sure we don't overwrite the callers opts
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opts = append(opts, sftp.UseFstat(f.opt.UseFstat))
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opts = append(opts,
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sftp.UseFstat(f.opt.UseFstat),
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sftp.UseConcurrentReads(!f.opt.DisableConcurrentReads),
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)
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return sftp.NewClientPipe(pr, pw, opts...)
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}
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6
go.mod
6
go.mod
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@ -45,7 +45,7 @@ require (
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github.com/nsf/termbox-go v0.0.0-20210114135735-d04385b850e8
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github.com/patrickmn/go-cache v2.1.0+incompatible
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github.com/pkg/errors v0.9.1
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github.com/pkg/sftp v1.12.0
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github.com/pkg/sftp v1.13.0
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github.com/prometheus/client_golang v1.9.0
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github.com/prometheus/procfs v0.3.0 // indirect
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github.com/putdotio/go-putio/putio v0.0.0-20200123120452-16d982cac2b8
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@ -66,11 +66,11 @@ require (
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go.opencensus.io v0.22.6 // indirect
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go.uber.org/zap v1.16.0 // indirect
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goftp.io/server v0.4.1
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golang.org/x/crypto v0.0.0-20201221181555-eec23a3978ad
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golang.org/x/crypto v0.0.0-20210220033148-5ea612d1eb83
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golang.org/x/net v0.0.0-20210119194325-5f4716e94777
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golang.org/x/oauth2 v0.0.0-20210201163806-010130855d6c
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golang.org/x/sync v0.0.0-20201207232520-09787c993a3a
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golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c
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golang.org/x/sys v0.0.0-20210313110737-8e9fff1a3a18
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golang.org/x/term v0.0.0-20201210144234-2321bbc49cbf // indirect
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golang.org/x/text v0.3.5
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golang.org/x/time v0.0.0-20201208040808-7e3f01d25324
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6
go.sum
6
go.sum
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@ -524,6 +524,8 @@ github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINE
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github.com/pkg/profile v1.2.1/go.mod h1:hJw3o1OdXxsrSjjVksARp5W95eeEaEfptyVZyv6JUPA=
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github.com/pkg/sftp v1.12.0 h1:/f3b24xrDhkhddlaobPe2JgBqfdt+gC/NYl0QY9IOuI=
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github.com/pkg/sftp v1.12.0/go.mod h1:fUqqXB5vEgVCZ131L+9say31RAri6aF6KDViawhxKK8=
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github.com/pkg/sftp v1.13.0 h1:Riw6pgOKK41foc1I1Uu03CjvbLZDXeGpInycM4shXoI=
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github.com/pkg/sftp v1.13.0/go.mod h1:41g+FIPlQUTDCveupEmEA65IoiQFrtgCeDopC4ajGIM=
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github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
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github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
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github.com/posener/complete v1.1.1/go.mod h1:em0nMJCgc9GFtwrmVmEMR/ZL6WyhyjMBndrE9hABlRI=
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@ -736,6 +738,8 @@ golang.org/x/crypto v0.0.0-20201112155050-0c6587e931a9 h1:umElSU9WZirRdgu2yFHY0a
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golang.org/x/crypto v0.0.0-20201112155050-0c6587e931a9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
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golang.org/x/crypto v0.0.0-20201221181555-eec23a3978ad h1:DN0cp81fZ3njFcrLCytUHRSUkqBjfTo4Tx9RJTWs0EY=
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golang.org/x/crypto v0.0.0-20201221181555-eec23a3978ad/go.mod h1:jdWPYTVW3xRLrWPugEBEK3UY2ZEsg3UU495nc5E+M+I=
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golang.org/x/crypto v0.0.0-20210220033148-5ea612d1eb83 h1:/ZScEX8SfEmUGRHs0gxpqteO5nfNW6axyZbBdw9A12g=
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golang.org/x/crypto v0.0.0-20210220033148-5ea612d1eb83/go.mod h1:jdWPYTVW3xRLrWPugEBEK3UY2ZEsg3UU495nc5E+M+I=
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golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
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golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
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golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522/go.mod h1:ZjyILWgesfNpC6sMxTJOJm9Kp84zZh5NQWvqDGG3Qr8=
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@ -902,6 +906,8 @@ golang.org/x/sys v0.0.0-20210112091331-59c308dcf3cc/go.mod h1:h1NjWce9XRLGQEsW7w
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golang.org/x/sys v0.0.0-20210119212857-b64e53b001e4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c h1:VwygUrnw9jn88c4u8GD3rZQbqrP/tgas88tPUbBxQrk=
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golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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golang.org/x/sys v0.0.0-20210313110737-8e9fff1a3a18 h1:jxr7/dEo+rR29uEBoLSWJ1tRHCFAMwFbGUU9nRqzpds=
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golang.org/x/sys v0.0.0-20210313110737-8e9fff1a3a18/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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golang.org/x/term v0.0.0-20201117132131-f5c789dd3221/go.mod h1:Nr5EML6q2oocZ2LXRh80K7BxOlk5/8JxuGnuhpl+muw=
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golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1 h1:v+OssWQX+hTHEmOBgwxdZxK4zHq3yOs8F9J7mk0PY8E=
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golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
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