Paul Groke [Thu, 10 Dec 2020 16:38:14 +0000 (17:38 +0100)]
dns: extend CURLOPT_RESOLVE syntax for adding non-permanent entries
Extend the syntax of CURLOPT_RESOLVE strings: allow using a '+' prefix
(similar to the existing '-' prefix for removing entries) to add
DNS cache entries that will time out just like entries that are added
by libcurl itself.
Append " (non-permanent)" to info log message in case a non-permanent
entry is added.
Adjust relevant comments to reflect the new behavior.
Cherish98 [Wed, 23 Dec 2020 12:59:00 +0000 (12:59 +0000)]
curl: fix handling of -q option
The match of the "-q" option (short for "--disable") should:
a) allow concatenation with other single-letters; and
b) be case-sensitive, lest confusing with "-Q" ("--quote")
Daniel Stenberg [Tue, 22 Dec 2020 08:54:06 +0000 (09:54 +0100)]
speedcheck: exclude paused transfers
Paused transfers should not be stopped due to slow speed even when
CURLOPT_LOW_SPEED_LIMIT is set. Additionally, the slow speed timer is
now reset when the transfer is unpaused - as otherwise it would easily
just trigger immediately after unpausing.
Reported-by: Harry Sintonen
Fixes #6358
Closes #6359
It doesn't seems to be standard, but it is used by some cloud providers.
Aws:
https://docs.aws.amazon.com/general/latest/gr/signature-version-4.html
Outscale:
https://wiki.outscale.net/display/EN/Creating+a+Canonical+Request
GCP (I didn't test that this code work with GCP though):
https://cloud.google.com/storage/docs/access-control/signing-urls-manually
most of the code is in lib/http_v4_signature.c
Information require by the algorithm:
- The URL
- Current time
- some prefix that are append to some of the signature parameters.
The data extracted from the URL are: the URI, the region,
the host and the API type
example:
https://api.eu-west-2.outscale.com/api/latest/ReadNets
~~~ ~~~~~~~~ ~~~~~~~~~~~~~~~~~~~
^ ^ ^
/ \ URI
API type region
Small description of the algorithm:
- make canonical header using content type, the host, and the date
- hash the post data
- make canonical_request using custom request, the URI,
the get data, the canonical header, the signed header
and post data hash
- hash canonical_request
- make str_to_sign using one of the prefix pass in parameter,
the date, the credential scope and the canonical_request hash
- compute hmac from date, using secret key as key.
- compute hmac from region, using above hmac as key
- compute hmac from api_type, using above hmac as key
- compute hmac from request_type, using above hmac as key
- compute hmac from str_to_sign using above hmac as key
- create Authorization header using above hmac, prefix pass in parameter,
the date, and above hash
It seems current hmac implementation use md5 for the hash,
V4 signature require sha256, so I've added the needed struct in
this commit.
I've added the functions that do the hmac in v4 signature file
as a static function ,in the next patch of the serie,
because it's used only by this file.
Daniel Stenberg [Sun, 20 Dec 2020 17:44:20 +0000 (18:44 +0100)]
curl: add --create-file-mode [mode]
This option sets the (octal) mode to use for the remote file when one is
created, using the SFTP, SCP or FILE protocols. When not set, the
default is 0644.
Daniel Stenberg [Tue, 15 Dec 2020 15:53:04 +0000 (16:53 +0100)]
http: show the request as headers even when split-sending
When the initial request isn't possible to send in its entirety, the
remainder of request would be delivered to the debug callback as data
and would wrongly be counted internally as body-bytes sent.
Daniel Stenberg [Thu, 17 Dec 2020 10:17:55 +0000 (11:17 +0100)]
multi: when erroring in TOOFAST state, act as for PERFORM
When failing in TOOFAST, the multi_done() wasn't called so the same
cleanup and handling wasn't done like when it fails in PERFORM, which in
the case of FTP could mean that the control connection wouldn't be
marked as "dead" for the CURLE_ABORTED_BY_CALLBACK case. Which caused
ftp_disconnect() to use it to send "QUIT", which could end up waiting
for a response a long time before giving up!
Reported-by: Tomas Berger
Fixes #6333
Closes #6337
parazyd [Sun, 15 Nov 2020 17:46:06 +0000 (18:46 +0100)]
gopher: Implement secure gopher protocol.
This commit introduces a "gophers" handler inside the gopher protocol if
USE_SSL is defined. This protocol is no different than the usual gopher
prococol, with the added TLS encapsulation upon connecting. The protocol
has been adopted in the gopher community, and many people have enabled
TLS in their gopher daemons like geomyidae(8), and clients, like clic(1)
and hurl(1).
I have not implemented test units for this protocol because my knowledge
of Perl is sub-par. However, for someone more knowledgeable it might be
fairly trivial, because the same test that tests the plain gopher
protocol can be used for "gophers" just by adding a TLS listener.
Jay Satiro [Sun, 13 Dec 2020 08:30:23 +0000 (03:30 -0500)]
digest_sspi: Show InitializeSecurityContext errors in verbose mode
The error is shown with infof rather than failf so that the user will
see the extended error message information only in verbose mode, and
will still see the standard CURLE_AUTH_ERROR message. For example:
---
* schannel: InitializeSecurityContext failed: SEC_E_QOP_NOT_SUPPORTED
(0x8009030A) - The per-message Quality of Protection is not supported by
the security package
* multi_done
* Connection #1 to host 127.0.0.1 left intact
curl: (94) An authentication function returned an error
current result:
(possible some successful data)
curl: (45) bind failed with errno 98: Address already in use
result after patch:
(complete success or few connections failing, higlhy depending on load)
Fail only when all the possible 4-tuple combinations are exhausted,
which is impossible to do when port is selected at bind() time becuse
the kernel does not know if socket will be listen()'ed on or connect'ed
yet.
connect: zero variable on stack to silence valgrind complaint
Valgrind will complain that ssrem buffer usage if not explicit
initialized, hence initialize it to zero.
This completes the change intially started in commit 2c0d7212151 ('ftp:
retry getpeername for FTP with TCP_FASTOPEN') where the ssloc buffer has
a similar memset to zero.
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