Commit Graph

83 Commits

Author SHA1 Message Date
albertony
ce83228cb2
sftp: expand tilde and environment variables in configured known_hosts_file (#5322)
Fixes #5220
2021-05-11 19:58:26 +02:00
Nick Craig-Wood
0537791d14 sftp: Fix performance regression by re-enabling concurrent writes #5197
Betweeen rclone v1.54 and v1.55 there was an approx 3x performance
regression when transferring to distant SFTP servers (in particular
rsync.net).

This turned out to be due to the library github.com/pkg/sftp rclone
uses. Concurrent writes used to be enabled in this library by default
(for v1.12.0 as used in rclone v1.54) but they are no longer enabled
(for v1.13.0 as used in rclone v1.55) for safety reasons and it is
necessary to enable them specifically.

The safety concerns are due to the uncertainty as to whether writes
come in order and whether a half completed file might have holes in
it. This isn't a problem for rclone since a) it doesn't restart
uploads and b) it has a post-transfer checksum test.

This change introduces a new flag `--sftp-disable-concurrent-writes`
to control the feature which defaults to false, meaning that
concurrent writes are enabled as in v1.54.

However this isn't quite enough to fix the problem as the sftp library
needs to be able to sniff the size of the stream from the reader
passed in, so this also adds a `Size` interface to the reader to
enable this. This involved a patch to the library.

The library was reverted to v1.12.0 for v1.55.1 - this patch installs
v1.13.0+master to fix the Size interface problem.

See: https://github.com/pkg/sftp/issues/426
2021-04-26 09:24:28 +01:00
Nick Craig-Wood
7dc7c021db sftp: fix Update ReadFrom failed: failed to send packet: EOF errors
In

a3fcadddc8 sftp: close idle connections after --sftp-idle-timeout (1m by default)

Idle SFTP connections were closed after 1 minute. However due to the
way SSH multiplexes connections over a single SSH connection this
meant that if uploads or downloads went on for more than one minute
they failed with "EOF errors" as their underlying connection was
closed.

This fixes the problem by not clearing idle connections if there are
any transfers in progress.

Fixes #5197
2021-04-06 10:01:49 +01:00
Nick Craig-Wood
fe1aa13069 sftp: revert sftp library to v1.12.0 from v1.13.0 to fix performance regression #5197
This reverts the library update done in this commit.

713f8f357d sftp: fix "file not found" errors for read once servers

Reverting this commit triples the performance to a far away sftp server.

See: https://github.com/pkg/sftp/issues/426
2021-04-06 10:01:49 +01:00
Nick Craig-Wood
9ee3ad70e9 sftp: fix SetModTime stat failed: object not found with --sftp-set-modtime=false
Some sftp servers don't allow the user to access the file after upload.

In this case the error message indicates that using
--sftp-set-modtime=false would fix the problem. However it doesn't
because SetModTime does a stat call which can't be disabled.

    Update SetModTime failed: SetModTime stat failed: object not found

After upload this patch checks for an `object not found` error if
set_modtime == false and ignores it, returning the expected size of
the object instead.

It also makes SetModTime do nothing if set_modtime = false

https://forum.rclone.org/t/sftp-update-setmodtime-failed/22873
2021-03-18 16:31:51 +00:00
Nick Craig-Wood
713f8f357d 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.
2021-03-13 15:38:38 +00:00
Nick Craig-Wood
a3fcadddc8 sftp: close idle connections after --sftp-idle-timeout (1m by default)
This fixes a problem where sftp backends live on forever when using
the rc and use more and more connections.

Fixes #4883
2021-02-16 12:39:05 +00:00
Nick Craig-Wood
e6a9f005d6 sftp: implement --sftp-use-fstat
See: https://forum.rclone.org/t/sftp-fails-to-sync-to-local-failed-to-copy-file-does-not-exist/21759
2021-01-28 16:07:26 +00:00
Nick Craig-Wood
e775328523 ftp,sftp: Make --tpslimit apply - fixes #4906 2021-01-08 10:29:57 +00:00
Nick Craig-Wood
ba51409c3c sftp: implement keyboard interactive authentication - fixes #4177
Some ssh servers are set up with keyboard interactive authentication
which previously the sftp backkend was ignoring.
2020-12-29 19:48:09 +00:00
Nick Craig-Wood
bcbe393af3 sftp: implement Shutdown method 2020-11-27 17:35:01 +00:00
Nick Craig-Wood
9d574c0d63 fshttp: read config from ctx not passed in ConfigInfo #4685 2020-11-26 16:40:12 +00:00
Nick Craig-Wood
2e21c58e6a fs: deglobalise the config #4685
This is done by making fs.Config private and attaching it to the
context instead.

The Config should be obtained with fs.GetConfig and fs.AddConfig
should be used to get a new mutable config that can be changed.
2020-11-26 16:40:12 +00:00
Nick Craig-Wood
8b96933e58 fs: Add context to fs.Features.Fill & fs.Features.Mask #3257 #4685 2020-11-09 18:05:54 +00:00
Nick Craig-Wood
d846210978 fs: Add context to NewFs #3257 #4685
This adds a context.Context parameter to NewFs and related calls.

This is necessary as part of reading config from the context -
backends need to be able to read the global config.
2020-11-09 18:05:54 +00:00
Josh Soref
3e1cb8302a docs: spelling: etc.
Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>
2020-10-28 18:16:23 +00:00
Josh Soref
bbe7eb35f1 docs: spelling: server-side
Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>
2020-10-28 18:16:23 +00:00
Josh Soref
d0888edc0a Spelling fixes
Fix spelling of: above, already, anonymous, associated,
authentication, bandwidth, because, between, blocks, calculate,
candidates, cautious, changelog, cleaner, clipboard, command,
completely, concurrently, considered, constructs, corrupt, current,
daemon, dependencies, deprecated, directory, dispatcher, download,
eligible, ellipsis, encrypter, endpoint, entrieslist, essentially,
existing writers, existing, expires, filesystem, flushing, frequently,
hierarchy, however, implementation, implements, inaccurate,
individually, insensitive, longer, maximum, metadata, modified,
multipart, namedirfirst, nextcloud, obscured, opened, optional,
owncloud, pacific, passphrase, password, permanently, persimmon,
positive, potato, protocol, quota, receiving, recommends, referring,
requires, revisited, satisfied, satisfies, satisfy, semver,
serialized, session, storage, strategies, stringlist, successful,
supported, surprise, temporarily, temporary, transactions, unneeded,
update, uploads, wrapped

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>
2020-10-14 15:21:31 +01:00
Stephen Harris
bbddadbd04 sftp: remember entered password in AskPass mode
As reported in

  https://github.com/rclone/rclone/issues/4660#issuecomment-705502792

After switching to a password callback function, if the ssh connection
aborts and needs to be reconnected then the user is-reprompted for their
password.  Instead we now remember the password they entered and just give
that back.  We do lose the ability for them to correct mistakes, but that's
the situation from before switching to callbacks.  We keep the benefits
of not asking for passwords until the SSH connection succeeds (right
known_hosts entry, for example).

This required a small refactor of how `f := &Fs{}` was built, so we can
store the saved password in the Fs object
2020-10-13 16:53:11 +01:00
Stephen Harris
9e925becb6 sftp: defer asking for user passwords until the SSH connection succeeds
Issue: 4660
    https://github.com/rclone/rclone/issues/4660

Unexpected side effect: a wrong password allows for the user to retry!
2020-10-07 12:01:17 +01:00
Stephen Harris
6dc28ef50a sftp: Allow user to optionally check server hosts key to add security
Based on Issue 4087
  https://github.com/rclone/rclone/issues/4087

Current behaviour is insecure.  If the user specifies this value then we
switch to validating the server hostkey and so can detect server changes
or MITM-type attacks.
2020-10-06 16:27:42 +01:00
Nick Craig-Wood
41ec712aa9 ftp,sftp: fix docs for usernames
- factor env.CurrentUser out of backend/sftp
- Use env.CurrentUser in ftp and sftp
- fix docs to have correct username
2020-09-27 11:44:05 +01:00
Stephen Harris
17acae2b00 sftp: allow cert based auth via optional pubkey
Discussion at
  https://forum.rclone.org/t/ssh-certificate-based-authentication-does-not-work/19222

Basically we allow the user to specify their own public key cert rather
than letting the SSH client extract the pubkey from the private key.
This allows certificate based authentication to work.
2020-09-27 11:10:13 +01:00
buengese
60cc2cba1f sftp: always convert the checksum to lower case - fixes #4518 2020-09-22 03:15:09 +02:00
aus
b6d3cad70e sftp: add options for subsystem and server_command - fixes #1801 2020-08-25 21:38:13 +01:00
Nick Craig-Wood
fefcbf60fa sftp: use the absolute path instead of the relative path
Before this change rclone used the relative path from the current
working directory.

It appears that WS FTP doesn't like this and the openssh sftp tool
also uses absolute paths which is a good reason for switching to
absolute paths.

This change reads the current working directory at startup and bases
all file requests from there.

See: https://forum.rclone.org/t/sftp-ssh-fx-failure-directory-not-found/17436
2020-06-30 16:07:23 +01:00
Nick Craig-Wood
c820576329 fs: define SlowModTime and SlowHash features in the relevant backends 2020-06-30 12:01:36 +01:00
Zac Rubin
f9306218f8 sftp: Fix SSH key PEM loading
For SSH authentication, `key_pem` should both override `key_file`
and not require other SSH authentication methods to be set.

Prior to this fix, rclone would attempt to use an ssh-agent
when `key_pem` was the only SSH authentication method set.

Fixes #4240
2020-06-12 22:46:33 +01:00
Nick Craig-Wood
973e3d6a7b backends: make sure backends expand ~ and environment vars in file names they use
See: https://forum.rclone.org/t/relative-path-in-rclone-config-service-account-json/16693
2020-06-03 17:39:08 +01:00
Martin Michlmayr
041b201abd doc: fix typos throughout docs and code 2020-05-25 11:23:58 +01:00
Martin Michlmayr
4aee962233 doc: fix typos throughout docs and code 2020-05-20 15:54:51 +01:00
calisro
bcbfad1482
sft[: added --sftp-pem-key to support inline key files 2020-05-19 11:55:38 +01:00
Nick Craig-Wood
e4f1e19127 sftp: fix post transfer copies failing with 0 size when using set_modtime=false
Before this change we early exited the SetModTime call which means we
skipped reading the info about the file.

This change reads info about the file in the SetModTime call even if
we are skipping setting the modtime.

See: https://forum.rclone.org/t/sftp-and-set-modtime-false-error/16362
2020-05-14 17:30:01 +01:00
Nick Craig-Wood
db39adeb3e sftp: open files for update write only to fix AWS SFTP interop - fixes #3776 2020-01-18 11:46:56 +00:00
Nick Craig-Wood
5f822f2660 sftp: fix "failed to parse private key file: ssh: not an encrypted key" error
This error started happening after updating golang/x/crypto which was
done as a side effect of:

3801b8109 vendor: update termbox-go to fix ncdu command on FreeBSD

This turned out to be a deliberate policy of making
ssh.ParsePrivateKeyWithPassphrase fail if the passphrase was empty.

See: https://go-review.googlesource.com/c/crypto/+/207599

This fix calls ssh.ParsePrivateKey if the passphrase is empty and
ssh.ParsePrivateKeyWithPassphrase otherwise which fixes the problem.
2020-01-13 11:05:16 +00:00
Nick Craig-Wood
a7d65bd519 sftp: add --sftp-skip-links to skip symlinks and non regular files - fixes #3716
This also corrects the symlink detection logic to only check symlink
files.  Previous to this it was checking all directories too which was
making it do more stat calls than was necessary.
2019-11-24 16:10:53 +00:00
Sebastian Brandt
f158a398f3 sftp: Retry Creation of Connection - fixes #3656
Removes the existing rate limiter because it is implicitly included in
the pacer.
2019-11-14 12:50:01 +00:00
Carlos Ferreyra
9cb549a227 sftp: include more ciphers with use_insecure_cipher 2019-10-17 14:58:31 +01:00
Nick Craig-Wood
b90e4a8769 sftp: fix hashes of files with backslashes 2019-09-30 22:00:24 +01:00
Nick Craig-Wood
3cff258577 sftp: fix --sftp-ask-password trying to contact the ssh agent
See: https://forum.rclone.org/t/rclone-command-line/11766
2019-09-16 11:16:27 +01:00
Nick Craig-Wood
fa539b9d9b sftp: save the md5/sha1 command in use to the config file 2019-08-14 20:54:08 +01:00
Nick Craig-Wood
3ea82032e7 sftp: support md5/sha1 with rsync.net #3254
rsync.net uses the freebsd equivalent of sha1sum and md5sum so adapt
to that.
2019-08-14 20:54:08 +01:00
Nick Craig-Wood
57d5de6fba build: fix up package paths after repo move
git grep -l github.com/ncw/rclone | xargs -d'\n' perl -i~ -lpe 's|github.com/ncw/rclone|github.com/rclone/rclone|g'
goimports -w `find . -name \*.go`
2019-07-28 18:47:38 +01:00
Yi FU
0a1169e659 ssh: opt-in support for diffie-hellman-group-exchange-sha256 diffie-hellman-group-exchange-sha1 - fixes #1810 2019-07-13 12:21:56 +02:00
Jon Fautley
cd762f04b8 sftp: Completely ignore all modtime checks if SetModTime=false 2019-06-28 10:33:14 +01:00
Nick Craig-Wood
a1840f6fc7 sftp: add missing interface check and fix About #3257
This bug was introduced as part of adding context to the backends and
slipped through the net because the About call did not have an
interface assertion in the sftp backend.

I checked there were no other missing interface assertions on all the
optional methods on all the backends.
2019-06-26 16:56:33 +01:00
Aleksandar Jankovic
f78cd1e043 Add context propagation to rclone
- Change rclone/fs interfaces to accept context.Context
- Update interface implementations to use context.Context
- Change top level usage to propagate context to lover level functions

Context propagation is needed for stopping transfers and passing other
request-scoped values.
2019-06-19 11:59:46 +01:00
Nick Craig-Wood
5c0e5b85f7 Factor ShellExpand from sftp backend to lib/env 2019-05-11 23:39:04 +01:00
Nick Craig-Wood
edda6d91cd Use go-homedir to read the home directory more reliably 2019-05-11 23:39:04 +01:00
Nick Craig-Wood
ada8c22a97 sftp: send custom client version and debug server version 2019-05-11 23:39:04 +01:00