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Commit Graph

905 Commits

Author SHA1 Message Date
Steve Holme
7c469fa537 sasl: Implement SASL authorisation identity via CURLOPT_SASL_AUTHZID
Added the ability for the calling program to specify the authorisation
identity (authzid), the identity to act as, in addition to the
authentication identity (authcid) and password when using SASL PLAIN
authentication.

Fixes #3653
Closes #3790

NOTE: This commit was cherry-picked and is part of a series of commits
that added the authzid feature for upcoming 7.66.0. The series was
temporarily reverted in db8ec1f so that it would not ship in a 7.65.x
patch release.

Closes https://github.com/curl/curl/pull/4186
2019-08-06 11:38:20 -04:00
Daniel Stenberg
b1616dad8f
timediff: make it 64 bit (if possible) even with 32 bit time_t
... to make it hold microseconds too.

Fixes #4165
Closes #4168
2019-08-01 07:43:24 +02:00
Daniel Stenberg
a55faf33d4
cleanup: remove the 'numsocks' argument used in many places
It was used (intended) to pass in the size of the 'socks' array that is
also passed to these functions, but was rarely actually checked/used and
the array is defined to a fixed size of MAX_SOCKSPEREASYHANDLE entries
that should be used instead.

Closes #4169
2019-07-30 23:16:44 +02:00
Daniel Stenberg
3af0e76d1e
HTTP3: initial (experimental) support
USe configure --with-ngtcp2 or --with-quiche

Using either option will enable a HTTP3 build.
Co-authored-by: Alessandro Ghedini <alessandro@ghedini.me>

Closes #3500
2019-07-21 23:49:03 +02:00
Daniel Stenberg
094b5f3540
multi: make sure 'data' can present in several sockhash entries
Since more than one socket can be used by each transfer at a given time,
each sockhash entry how has its own hash table with transfers using that
socket.

In addition, the sockhash entry can now be marked 'blocked = TRUE'"
which then makes the delete function just set 'removed = TRUE' instead
of removing it "for real", as a way to not rip out the carpet under the
feet of a parent function that iterates over the transfers of that same
sockhash entry.

Reported-by: Tom van der Woerdt
Fixes #3961
Fixes #3986
Fixes #3995
Fixes #4004
Closes #3997
2019-06-10 00:47:48 +02:00
Frank Gevaerts
660603141c
ssl: Update outdated "openssl-only" comments for supported backends
These are for features that used to be openssl-only but were expanded
over time to support other SSL backends.

Closes #3985
2019-06-04 20:25:12 +01:00
Michael Kaufmann
2e5ceb3934
http: don't parse body-related headers bodyless responses
Responses with status codes 1xx, 204 or 304 don't have a response body. For
these, don't parse these headers:

- Content-Encoding
- Content-Length
- Content-Range
- Last-Modified
- Transfer-Encoding

This change ensures that HTTP/2 upgrades work even if a
"Content-Length: 0" or a "Transfer-Encoding: chunked" header is present.

Co-authored-by: Daniel Stenberg
Closes #3702
Fixes #3968
Closes #3977
2019-06-02 22:58:04 +02:00
Daniel Stenberg
8581e1928e
multi: track users of a socket better
They need to be removed from the socket hash linked list with more care.

When sh_delentry() is called to remove a sockethash entry, remove all
individual transfers from the list first. To enable this, each Curl_easy struct
now stores a pointer to the sockethash entry to know how to remove itself.

Reported-by: Tom van der Woerdt and Kunal Ekawde

Fixes #3952
Fixes #3904
Closes #3953
2019-05-28 12:17:02 +02:00
Jay Satiro
db8ec1fa38
Revert all SASL authzid (new feature) commits
- Revert all commits related to the SASL authzid feature since the next
  release will be a patch release, 7.65.1.

Prior to this change CURLOPT_SASL_AUTHZID  / --sasl-authzid was destined
for the next release, assuming it would be a feature release 7.66.0.
However instead the next release will be a patch release, 7.65.1 and
will not contain any new features.

After the patch release after the reverted commits can be restored by
using cherry-pick:

git cherry-pick a14d72c a9499ff 8c1cc36 c2a8d52 0edf690

Details for all reverted commits:

Revert "os400: take care of CURLOPT_SASL_AUTHZID in curl_easy_setopt_ccsid()."

This reverts commit 0edf6907ae.

Revert "tests: Fix the line endings for the SASL alt-auth tests"

This reverts commit c2a8d52a13.

Revert "examples: Added SASL PLAIN authorisation identity (authzid) examples"

This reverts commit 8c1cc369d0.

Revert "curl: --sasl-authzid added to support CURLOPT_SASL_AUTHZID from the tool"

This reverts commit a9499ff136.

Revert "sasl: Implement SASL authorisation identity via CURLOPT_SASL_AUTHZID"

This reverts commit a14d72ca2f.
2019-05-25 23:36:11 +02:00
Steve Holme
a14d72ca2f
sasl: Implement SASL authorisation identity via CURLOPT_SASL_AUTHZID
Added the ability for the calling program to specify the authorisation
identity (authzid), the identity to act as, in addition to the
authentication identity (authcid) and password when using SASL PLAIN
authentication.

Fixed #3653
Closes #3790
2019-05-22 22:55:05 +01:00
Daniel Stenberg
e91e481612
libcurl: #ifdef away more code for disabled features/protocols 2019-05-17 23:24:34 +02:00
Steve Holme
e832d1ef74
http_negotiate: Move the Negotiate state out of the negotiatedata structure
Given that this member variable is not used by the SASL based protocols
there is no need to have it here.

Closes #3882
2019-05-15 00:32:42 +01:00
Steve Holme
85bef18ca1
http_ntlm: Move the NTLM state out of the ntlmdata structure
Given that this member variable is not used by the SASL based protocols
there is no need to have it here.
2019-05-15 00:31:45 +01:00
Steve Holme
0c73adfad3
url: Move the negotiate state type into a dedicated enum 2019-05-15 00:31:35 +01:00
Daniel Stenberg
0e2208ada6
wildcard: disable from build when FTP isn't present 2019-05-13 08:17:09 +02:00
Daniel Stenberg
7c70a3b1ad
http: CURL_DISABLE_HTTP_AUTH 2019-05-13 08:17:09 +02:00
Daniel Stenberg
ae4adae954
doh: CURL_DISABLE_DOH 2019-05-13 08:17:09 +02:00
Daniel Stenberg
d37b0936d1
ssh: define USE_SSH if SSH is enabled (any backend)
Closes #3846
2019-05-06 10:14:17 +02:00
Daniel Stenberg
5c8783d77f
process_pending_handles: mark queued transfers as previously pending
With transfers being queued up, we only move one at a a time back to the
CONNECT state but now we mark moved transfers so that when a moved
transfer is confirmed "successful" (it connected) it will trigger the
move of another pending transfer. Previously, it would otherwise wait
until the transfer was done before doing this. This makes queued up
pending transfers get processed (much) faster.
2019-05-01 22:51:23 +02:00
Daniel Stenberg
5fc28510a4
CURL_MAX_INPUT_LENGTH: largest acceptable string input size
This limits all accepted input strings passed to libcurl to be less than
CURL_MAX_INPUT_LENGTH (8000000) bytes, for these API calls:
curl_easy_setopt() and curl_url_set().

The 8000000 number is arbitrary picked and is meant to detect mistakes
or abuse, not to limit actual practical use cases. By limiting the
acceptable string lengths we also reduce the risk of integer overflows
all over.

NOTE: This does not apply to `CURLOPT_POSTFIELDS`.

Test 1559 verifies.

Closes #3805
2019-04-29 08:02:44 +02:00
Daniel Stenberg
e649432e72
CURLOPT_MAXAGE_CONN: set the maximum allowed age for conn reuse
... and disconnect too old ones instead of trying to reuse.

Default max age is set to 118 seconds.

Ref: #3722
Closes #3782
2019-04-21 23:06:23 +02:00
Daniel Stenberg
f73de32d46
CURLOPT_DNS_USE_GLOBAL_CACHE: remove
Remove the code too. The functionality has been disabled in code since
7.62.0. Setting this option will from now on simply be ignored and have
no function.

Closes #3654
2019-04-11 22:22:39 +02:00
Daniel Stenberg
2f44e94efb
pipelining: removed
As previously planned and documented in DEPRECATE.md, all pipelining
code is removed.

Closes #3651
2019-04-06 22:49:50 +02:00
Brad Spencer
80208d68dc
resolve: apply Happy Eyeballs philosophy to parallel c-ares queries
Closes #3699
2019-03-27 23:31:59 +01:00
Dominik Hölzl
6c60355323
Negotiate: fix for HTTP POST with Negotiate
* Adjusted unit tests 2056, 2057
* do not generally close connections with CURLAUTH_NEGOTIATE after every request
* moved negotiatedata from UrlState to connectdata
* Added stream rewind logic for CURLAUTH_NEGOTIATE
* introduced negotiatedata::GSS_AUTHDONE and negotiatedata::GSS_AUTHSUCC
* Consider authproblem state for CURLAUTH_NEGOTIATE
* Consider reuse_forbid for CURLAUTH_NEGOTIATE
* moved and adjusted negotiate authentication state handling from
  output_auth_headers into Curl_output_negotiate
* Curl_output_negotiate: ensure auth done is always set
* Curl_output_negotiate: Set auth done also if result code is
  GSS_S_CONTINUE_NEEDED/SEC_I_CONTINUE_NEEDED as this result code may
  also indicate the last challenge request (only works with disabled
  Expect: 100-continue and CURLOPT_KEEP_SENDING_ON_ERROR -> 1)
* Consider "Persistent-Auth" header, detect if not present;
  Reset/Cleanup negotiate after authentication if no persistent
  authentication
* apply changes introduced with #2546 for negotiate rewind logic

Fixes #1261
Closes #1975
2019-03-14 09:26:03 +01:00
Daniel Stenberg
e1be825453
alt-svc: the libcurl bits 2019-03-03 11:17:52 +01:00
Daniel Stenberg
65eb65fde6
urldata: simplify bytecounters
- no need to have them protocol specific

- no need to set pointers to them with the Curl_setup_transfer() call

- make Curl_setup_transfer() operate on a transfer pointer, not
  connection

- switch some counters from long to the more proper curl_off_t type

Closes #3627
2019-03-01 17:30:34 +01:00
Daniel Stenberg
4ff055530d
Curl_easy: remove req.maxfd - never used!
Introduced in 8b6314ccfb, but not used anymore in current code. Unclear
since when.

Closes #3626
2019-02-28 15:27:32 +01:00
Daniel Stenberg
62a2534e4c
urldata: convert bools to bitfields and move to end
This allows the compiler to pack and align the structs better in
memory. For a rather feature-complete build on x86_64 Linux, gcc 8.1.2
makes the Curl_easy struct 4.9% smaller. From 6312 bytes to 6000.

Removed an unused struct field.

No functionality changes.

Closes #3610
2019-02-27 08:37:56 +01:00
Daniel Stenberg
880cd5dd20
strerror: make the strerror function use local buffers
Instead of using a fixed 256 byte buffer in the connectdata struct.

In my build, this reduces the size of the connectdata struct by 11.8%,
from 2160 to 1904 bytes with no functionality or performance loss.

This also fixes a bug in schannel's Curl_verify_certificate where it
called Curl_sspi_strerror when it should have called Curl_strerror for
string from GetLastError. the only effect would have been no text or the
wrong text being shown for the error.

Co-authored-by: Jay Satiro

Closes #3612
2019-02-26 10:20:21 +01:00
Daniel Stenberg
b08898fb29
connection: never reuse CONNECT_ONLY conections
and make CONNECT_ONLY conections never reuse any existing ones either.

Reported-by: Pavel Löbl
Bug: https://curl.haxx.se/mail/lib-2019-02/0064.html
Closes #3586
2019-02-19 22:50:02 +01:00
Daniel Stenberg
28177def43
gssapi: fix deprecated header warnings
Heimdal includes on FreeBSD spewed out lots of them. Less so now.

Closes #3566
2019-02-14 08:38:43 +01:00
Daniel Stenberg
a6d134e17a
pretransfer: don't strlen() POSTFIELDS set for GET requests
... since that data won't be used in the request anyway.

Fixes #3548
Reported-by: Renaud Allard
Close #3549
2019-02-12 14:36:54 +01:00
georgeok
a730432e59
spnego_sspi: add support for channel binding
Attempt to add support for Secure Channel binding when negotiate
authentication is used. The problem to solve is that by default IIS
accepts channel binding and curl doesn't utilise them. The result was a
401 response. Scope affects only the Schannel(winssl)-SSPI combination.

Fixes https://github.com/curl/curl/issues/3503
Closes https://github.com/curl/curl/pull/3509
2019-02-01 09:56:27 +01:00
georgeok
0966233744 ntlm_sspi: add support for channel binding
Windows extended potection (aka ssl channel binding) is required
to login to ntlm IIS endpoint, otherwise the server returns 401
responses.

Fixes #3280
Closes #3321
2019-01-19 13:00:53 +01:00
Daniel Stenberg
ba243235ec
urldata: rename easy_conn to just conn
We use "conn" everywhere to be a pointer to the connection.

Introduces two functions that "attaches" and "detaches" the connection
to and from the transfer.

Going forward, we should favour using "data->conn" (since a transfer
always only has a single connection or none at all) to "conn->data"
(since a connection can have none, one or many transfers associated with
it and updating conn->data to be correct is error prone and a frequent
reason for internal issues).

Closes #3442
2019-01-11 15:35:13 +01:00
Daniel Stenberg
4c35574bb7
multi: multiplexing improvements
Fixes #3436
Closes #3448

 Problem 1

After LOTS of scratching my head, I eventually realized that even when doing
10 uploads in parallel, sometimes the socket callback to the application that
tells it what to wait for on the socket, looked like it would reflect the
status of just the single transfer that just changed state.

Digging into the code revealed that this was indeed the truth. When multiple
transfers are using the same connection, the application did not correctly get
the *combined* flags for all transfers which then could make it switch to READ
(only) when in fact most transfers wanted to get told when the socket was
WRITEABLE.

 Problem 1b

A separate but related regression had also been introduced by me when I
cleared connection/transfer association better a while ago, as now the logic
couldn't find the connection and see if that was marked as used by more
transfers and then it would also prematurely remove the socket from the socket
hash table even in times other transfers were still using it!

 Fix 1

Make sure that each socket stored in the socket hash has a "combined" action
field of what to ask the application to wait for, that is potentially the ORed
action of multiple parallel transfers. And remove that socket hash entry only
if there are no transfers left using it.

 Problem 2

The socket hash entry stored an association to a single transfer using that
socket - and when curl_multi_socket_action() was called to tell libcurl about
activities on that specific socket only that transfer was "handled".

This was WRONG, as a single socket/connection can be used by numerous parallel
transfers and not necessarily a single one.

 Fix 2

We now store a list of handles in the socket hashtable entry and when libcurl
is told there's traffic for a particular socket, it now iterates over all
known transfers using that single socket.
2019-01-10 09:49:09 +01:00
Claes Jakobsson
d8cae791f4 hostip: support wildcard hosts
This adds support for wildcard hosts in CURLOPT_RESOLVE. These are
try-last so any non-wildcard entry is resolved first. If specified,
any host not matched by another CURLOPT_RESOLVE config will use this
as fallback.

Example send a.com to 10.0.0.1 and everything else to 10.0.0.2:
  curl --resolve *:443:10.0.0.2 --resolve a.com:443:10.0.0.1 \
       https://a.com https://b.com

This is probably quite similar to using:
  --connect-to a.com:443:10.0.0.1:443 --connect-to :443:10.0.0.2:443

Closes #3406
Reviewed-by: Daniel Stenberg <daniel@haxx.se>
2018-12-27 14:23:53 +01:00
Daniel Stenberg
006ff62d8c
http: added options for allowing HTTP/0.9 responses
Added CURLOPT_HTTP09_ALLOWED and --http0.9 for this purpose.

For now, both the tool and library allow HTTP/0.9 by default.
docs/DEPRECATE.md lays out the plan for when to reverse that default: 6
months after the 7.64.0 release. The options are added already now so
that applications/scripts can start using them already now.

Fixes #2873
Closes #3383
2018-12-21 10:49:30 +01:00
Daniel Stenberg
d8a9de6203
pingpong: change default response timeout to 120 seconds
Previously it was 30 minutes
2018-12-17 12:33:18 +01:00
Ayoub Boudhar
f464535bfd
http: Implement trailing headers for chunked transfers
This adds the CURLOPT_TRAILERDATA and CURLOPT_TRAILERFUNCTION
options that allow a callback based approach to sending trailing headers
with chunked transfers.

The test server (sws) was updated to take into account the detection of the
end of transfer in the case of trailing headers presence.

Test 1591 checks that trailing headers can be sent using libcurl.

Closes #3350
2018-12-14 10:10:48 +01:00
Tobias Hintze
5b4cce2e36
host names: allow trailing dot in name resolve, then strip it
Delays stripping of trailing dots to after resolving the hostname.

Fixes #3022
Closes #3222
2018-11-22 13:40:51 +01:00
Jim Fuller
5c4fe0d826
setopt: add CURLOPT_CURLU
Allows an application to pass in a pre-parsed URL via a URL handle.

Closes #3227
2018-11-09 15:47:28 +01:00
Michael Kaufmann
daabc91581 urldata: Fix comment in header
The "connecting" function is used by multiple protocols, not only FTP
2018-10-25 13:04:03 +02:00
Viktor Szakats
ff9d7f4447 spelling fixes [ci skip]
as detected by codespell 1.14.0

Closes https://github.com/curl/curl/pull/3114
Reviewed-by: Marcel Raad <Marcel.Raad@teamviewer.com>
2018-10-08 19:37:40 +00:00
Daniel Stenberg
46e164069d
url: use the URL API internally as well
... to make it a truly unified URL parser.

Closes #3017
2018-09-22 11:58:10 +02:00
Max Dymond
7b655fcbad
upkeep: add a connection upkeep API: curl_easy_conn_upkeep()
Add functionality so that protocols can do custom keepalive on their
connections, when an external API function is called.

Add docs for the new options in 7.62.0

Closes #1641
2018-09-07 09:45:29 +02:00
Daniel Stenberg
2825f46d95
CURLOPT_UPLOAD_BUFFERSIZE: set upload buffer size
This is step 3 of #2888.

Fixes #2888
Closes #2896
2018-09-06 10:53:39 +02:00
Daniel Stenberg
abff183387
setopt: add CURLOPT_DOH_URL
Closes #2668
2018-09-06 09:17:17 +02:00
Jim Fuller
b004a174ea
tests: add unit tests for url.c
Approved-by: Daniel Gustafsson
Closes #2937
2018-09-05 14:30:48 +02:00
Daniel Stenberg
8c80a9d1e2
upload: change default UPLOAD_BUFSIZE to 64KB
To make uploads significantly faster in some circumstances.

Part 2 of #2888
Closes #2892
2018-08-18 15:48:52 +02:00
Daniel Stenberg
e6e9b006f7
upload: allocate upload buffer on-demand
Saves 16KB on the easy handle for operations that don't need that
buffer.

Part 1 of #2888
2018-08-18 15:48:08 +02:00
Laurent Bonnans
4939f36524
vtls: reinstantiate engine on duplicated handles
Handles created with curl_easy_duphandle do not use the SSL engine set
up in the original handle. This fixes the issue by storing the engine
name in the internal url state and setting the engine from its name
inside curl_easy_duphandle.

Reported-by: Anton Gerasimov
Signed-of-by: Laurent Bonnans
Fixes #2829
Closes #2833
2018-08-18 15:46:23 +02:00
Daniel Stenberg
09da53998e
urldata: remove unused pipe_broke struct field
This struct field is never set TRUE in any existing code path. This
change removes the field completely.

Closes #2871
2018-08-16 09:33:12 +02:00
Daniel Stenberg
8440616f53
http: fix for tiny "HTTP/0.9" response
Deal with tiny "HTTP/0.9" (header-less) responses by checking the
status-line early, even before a full "HTTP/" is received to allow
detecting 0.9 properly.

Test 1266 and 1267 added to verify.

Fixes #2420
Closes #2872
2018-08-13 23:16:01 +02:00
Daniel Stenberg
7b9bc96c77
http2: several cleanups
- separate easy handle from connections better
- added asserts on a number of places
- added sanity check of pipelines for debug builds

Closes #2751
2018-07-20 22:58:42 +02:00
Daniel Stenberg
1b76c38904
conn: remove the boolean 'inuse' field
... as the usage needs to be counted.
2018-07-11 23:41:24 +02:00
Daniel Stenberg
5ae22272d1
Curl_debug: remove dead printhost code
The struct field is never set (since 5e0d9aea3) so remove the use of it
and remove the connectdata pointer from the prototype.

Reported-by: Tejas
Bug: https://curl.haxx.se/mail/lib-2018-06/0054.html
Closes #2647
2018-06-12 16:00:27 +02:00
Daniel Stenberg
38203f1585
openssl: assume engine support in 1.0.1 or later
Previously it was checked for in configure/cmake, but that would then
leave other build systems built without engine support.

While engine support probably existed prior to 1.0.1, I decided to play
safe. If someone experience a problem with this, we can widen the
version check.

Fixes #2641
Closes #2644
2018-06-11 10:20:18 +02:00
Viktor Szakats
4bd91bc474 spelling fixes
Detected using the `codespell` tool (version 1.13.0).

Also secure and fix an URL.
2018-06-03 12:14:45 +00:00
Björn Stenberg
946ce5b61f
option: disallow username in URL
Adds CURLOPT_DISALLOW_USERNAME_IN_URL and --disallow-username-in-url. Makes
libcurl reject URLs with a username in them.

Closes #2340
2018-05-31 11:27:16 +02:00
Daniel Stenberg
050c93c46f
setopt: add TLS 1.3 ciphersuites
Adds CURLOPT_TLS13_CIPHERS and CURLOPT_PROXY_TLS13_CIPHERS.

curl: added --tls13-ciphers and --proxy-tls13-ciphers

Fixes #2435
Reported-by: zzq1015 on github
Closes #2607
2018-05-29 16:12:52 +02:00
Patrick Monnerat
8541d02c96 psl: use latest psl and refresh it periodically
The latest psl is cached in the multi or share handle. It is refreshed
before use after 72 hours.
New share lock CURL_LOCK_DATA_PSL controls the psl cache sharing.
If the latest psl is not available, the builtin psl is used.

Reported-by: Yaakov Selkowitz
Fixes #2553
Closes #2601
2018-05-28 20:37:14 +02:00
Aleks
e05ad5dd99
docs: mention HAproxy protocol "version 1"
...as there's also a version 2.

Closes #2579
2018-05-18 17:48:40 +02:00
Daniel Stenberg
a5aa2bdf34
http2: use the correct function pointer typedef
Fixes gcc-8 picky compiler warnings
Reported-by: Rikard Falkeborn
Bug: #2560
Closes #2568
2018-05-14 12:44:20 +02:00
Daniel Stenberg
d122df5972
http2: handle GOAWAY properly
When receiving REFUSED_STREAM, mark the connection for close and retry
streams accordingly on another/fresh connection.

Reported-by: Terry Wu
Fixes #2416
Fixes #1618
Closes #2510
2018-04-20 22:19:23 +02:00
toughengineer
bc4b8c9717
ntlm_sspi: fix authentication using Credential Manager
If you pass empty user/pass asking curl to use Windows Credential
Storage (as stated in the docs) and it has valid credentials for the
domain, e.g.
curl -v -u : --ntlm example.com
currently authentication fails.
This change fixes it by providing proper SPN string to the SSPI API
calls.

Fixes https://github.com/curl/curl/issues/1622
Closes https://github.com/curl/curl/pull/1660
2018-04-16 20:43:21 +02:00
Marcel Raad
627bd7da76
urldata: make service names unconditional
The ifdefs have become quite long. Also, the condition for the
definition of CURLOPT_SERVICE_NAME and for setting it from
CURLOPT_SERVICE_NAME have diverged. We will soon also need the two
options for NTLM, at least when using SSPI, for
https://github.com/curl/curl/pull/1660.
Just make the definitions unconditional to make that easier.

Closes https://github.com/curl/curl/pull/2479
2018-04-16 20:11:41 +02:00
Rick Deist
d95f3dc0b1
resolve: add CURLOPT_DNS_SHUFFLE_ADDRESSES
This patch adds CURLOPT_DNS_SHUFFLE_ADDRESSES to explicitly request
shuffling of IP addresses returned for a hostname when there is more
than one. This is useful when the application knows that a round robin
approach is appropriate and is willing to accept the consequences of
potentially discarding some preference order returned by the system's
implementation.

Closes #1694
2018-03-17 20:44:14 +01:00
Lawrence Matthews
6baeb6df35
CURLOPT_HAPROXYPROTOCOL: support the HAProxy PROXY protocol
Add --haproxy-protocol for the command line tool

Closes #2162
2018-03-17 11:50:06 +01:00
luz.paz
236402fc2d
cleanup: misc typos in strings and comments
Found via `codespell`

Closes #2389
2018-03-16 11:08:31 +01:00
Viktor Szakats
7e35eb7729 spelling fixes
Detected using the `codespell` tool.

Also contains one URL protocol upgrade.

Closes https://github.com/curl/curl/pull/2334
2018-02-23 23:29:01 +00:00
Francisco Sedano
23713645d4 url: Add option CURLOPT_RESOLVER_START_FUNCTION
- Add new option CURLOPT_RESOLVER_START_FUNCTION to set a callback that
  will be called every time before a new resolve request is started
  (ie before a host is resolved) with a pointer to backend-specific
  resolver data. Currently this is only useful for ares.

- Add new option CURLOPT_RESOLVER_START_DATA to set a user pointer to
  pass to the resolver start callback.

Closes https://github.com/curl/curl/pull/2311
2018-02-21 21:29:10 -05:00
Anders Bakken
2427d94c6d url: Add option CURLOPT_HAPPY_EYEBALLS_TIMEOUT
- Add new option CURLOPT_HAPPY_EYEBALLS_TIMEOUT to set libcurl's happy
  eyeball timeout value.

- Add new optval macro CURL_HET_DEFAULT to represent the default happy
  eyeballs timeout value (currently 200 ms).

- Add new tool option --happy-eyeballs-timeout-ms to expose
  CURLOPT_HAPPY_EYEBALLS_TIMEOUT. The -ms suffix is used because the
  other -timeout options in the tool expect seconds not milliseconds.

Closes https://github.com/curl/curl/pull/2260
2018-02-20 17:51:43 -05:00
Daniel Stenberg
8f69a9f28a
time: support > year 2038 time stamps for system with 32bit long
... with the introduction of CURLOPT_TIMEVALUE_LARGE and
CURLINFO_FILETIME_T.

Fixes #2238
Closes #2264
2018-01-30 08:29:59 +01:00
Daniel Stenberg
af32cd3859
http: prevent custom Authorization headers in redirects
... unless CURLOPT_UNRESTRICTED_AUTH is set to allow them. This matches how
curl already handles Authorization headers created internally.

Note: this changes behavior slightly, for the sake of reducing mistakes.

Added test 317 and 318 to verify.

Reported-by: Craig de Stigter
Bug: https://curl.haxx.se/docs/adv_2018-b3bf.html
2018-01-22 10:00:00 +01:00
Daniel Stenberg
a8ce5efba9 progress: calculate transfer speed on milliseconds if possible
to increase accuracy for quick transfers

Fixes #2200
Closes #2206
2018-01-08 23:45:09 +13:00
Zachary Seguin
55e609890f
CONNECT: keep close connection flag in http_connect_state struct
Fixes #2088
Closes #2157
2017-12-07 09:48:33 +01:00
Randall S. Becker
76ebd54175
configure: check for netinet/in6.h
Needed by HPE NonStop NSE and NSX systems

Fixes #2146
Closes #2155
2017-12-06 00:19:09 +01:00
Daniel Stenberg
07cb27c98e
conncache: fix several lock issues
If the lock is released before the dealings with the bundle is over, it may
have changed by another thread in the mean time.

Fixes #2132
Fixes #2151
Closes #2139
2017-12-05 23:21:02 +01:00
Nikos Mavrogiannopoulos
c92d2e14cf
Added support for libssh SSH SCP back-end
libssh is an alternative library to libssh2.
https://www.libssh.org/

That patch set also introduces support for ECDSA
ed25519 keys, as well as gssapi authentication.

Signed-off-by: Nikos Mavrogiannopoulos <nmav@redhat.com>
2017-12-01 17:35:14 +01:00
Johannes Schindelin
9194a9959b
SSL: Avoid magic allocation of SSL backend specific data
Originally, my idea was to allocate the two structures (or more
precisely, the connectdata structure and the four SSL backend-specific
strucutres required for ssl[0..1] and proxy_ssl[0..1]) in one go, so
that they all could be free()d together.

However, getting the alignment right is tricky. Too tricky.

So let's just bite the bullet and allocate the SSL backend-specific
data separately.

As a consequence, we now have to be very careful to release the memory
allocated for the SSL backend-specific data whenever we release any
connectdata.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

Closes #2119
2017-12-01 10:28:31 +01:00
Jay Satiro
9b5e12a549
url: fix alignment of ssl_backend_data struct
- Align the array of ssl_backend_data on a max 32 byte boundary.

8 is likely to be ok but I went with 32 for posterity should one of
the ssl_backend_data structs change to contain a larger sized variable
in the future.

Prior to this change (since dev 70f1db3, release 7.56) the connectdata
structure was undersized by 4 bytes in 32-bit builds with ssl enabled
because long long * was mistakenly used for alignment instead of
long long, with the intention being an 8 byte boundary. Also long long
may not be an available type.

The undersized connectdata could lead to oob read/write past the end in
what was expected to be the last 4 bytes of the connection's secondary
socket https proxy ssl_backend_data struct (the secondary socket in a
connection is used by ftp, others?).

Closes https://github.com/curl/curl/issues/2093

CVE-2017-8818

Bug: https://curl.haxx.se/docs/adv_2017-af0a.html
2017-11-27 08:19:25 +01:00
Patrick Monnerat
def2ca2628 zlib/brotli: only include header files in modules needing them
There is a conflict on symbol 'free_func' between openssl/crypto.h and
zlib.h on AIX. This is an attempt to resolve it.

Bug: https://curl.haxx.se/mail/lib-2017-11/0032.html
Reported-By: Michael Felt
2017-11-13 14:20:41 +01:00
Patrick Monnerat
11bf1796cd HTTP: implement Brotli content encoding
This uses the brotli external library (https://github.com/google/brotli).
Brotli becomes a feature: additional curl_version_info() bit and
structure fields are provided for it and CURLVERSION_NOW bumped.

Tests 314 and 315 check Brotli content unencoding with correct and
erroneous data.

Some tests are updated to accomodate with the now configuration dependent
parameters of the Accept-Encoding header.
2017-11-05 15:28:16 +01:00
Patrick Monnerat
dbcced8e32 HTTP: support multiple Content-Encodings
This is implemented as an output streaming stack of unencoders, the last
calling the client write procedure.

New test 230 checks this feature.

Bug: https://github.com/curl/curl/pull/2002
Reported-By: Daniel Bankhead
2017-11-05 15:09:48 +01:00
Florin
2b5b37cb91
auth: add support for RFC7616 - HTTP Digest access authentication
Signed-off-by: Florin <petriuc.florin@gmail.com>
2017-10-28 16:32:43 +02:00
Max Dymond
7b11c5dbe6
wildcards: don't use with non-supported protocols
Fixes timeouts in the fuzzing tests for non-FTP protocols.

Closes #2016
2017-10-26 13:34:45 +02:00
Daniel Stenberg
7bc5308db3
build: fix --disable-crypto-auth
Reported-by: Wyatt O'Day
Fixes #1945
Closes #1947
2017-10-05 14:06:23 +02:00
Michael Kaufmann
9d3dde37a8 vtls: compare and clone ssl configs properly
Compare these settings in Curl_ssl_config_matches():
- verifystatus (CURLOPT_SSL_VERIFYSTATUS)
- random_file (CURLOPT_RANDOM_FILE)
- egdsocket (CURLOPT_EGDSOCKET)

Also copy the setting "verifystatus" in Curl_clone_primary_ssl_config(),
and copy the setting "sessionid" unconditionally.

This means that reusing connections that are secured with a client
certificate is now possible, and the statement "TLS session resumption
is disabled when a client certificate is used" in the old advisory at
https://curl.haxx.se/docs/adv_20170419.html is obsolete.

Reviewed-by: Daniel Stenberg

Closes #1917
2017-10-03 18:08:50 +02:00
Daniel Stenberg
e5743f08e7
code style: use spaces around pluses 2017-09-11 09:29:50 +02:00
Daniel Stenberg
9926357b42 mime: unified to use the typedef'd mime structs everywhere
... and slightly edited to follow our code style better.
2017-09-05 17:33:16 +01:00
Patrick Monnerat
ce0881edee mime: new MIME API.
Available in HTTP, SMTP and IMAP.
Deprecates the FORM API.
See CURLOPT_MIMEPOST.
Lib code and associated documentation.
2017-09-02 17:47:10 +01:00
Johannes Schindelin
70f1db321a
vtls: encapsulate SSL backend-specific data
So far, all of the SSL backends' private data has been declared as
part of the ssl_connect_data struct, in one big #if .. #elif .. #endif
block.

This can only work as long as the SSL backend is a compile-time option,
something we want to change in the next commits.

Therefore, let's encapsulate the exact data needed by each SSL backend
into a private struct, and let's avoid bleeding any SSL backend-specific
information into urldata.h. This is also necessary to allow multiple SSL
backends to be compiled in at the same time, as e.g. OpenSSL's and
CyaSSL's headers cannot be included in the same .c file.

To avoid too many malloc() calls, we simply append the private structs
to the connectdata struct in allocate_conn().

This requires us to take extra care of alignment issues: struct fields
often need to be aligned on certain boundaries e.g. 32-bit values need to
be stored at addresses that divide evenly by 4 (= 32 bit / 8
bit-per-byte).

We do that by assuming that no SSL backend's private data contains any
fields that need to be aligned on boundaries larger than `long long`
(typically 64-bit) would need. Under this assumption, we simply add a
dummy field of type `long long` to the `struct connectdata` struct. This
field will never be accessed but acts as a placeholder for the four
instances of ssl_backend_data instead. the size of each ssl_backend_data
struct is stored in the SSL backend-specific metadata, to allow
allocate_conn() to know how much extra space to allocate, and how to
initialize the ssl[sockindex]->backend and proxy_ssl[sockindex]->backend
pointers.

This would appear to be a little complicated at first, but is really
necessary to encapsulate the private data of each SSL backend correctly.
And we need to encapsulate thusly if we ever want to allow selecting
CyaSSL and OpenSSL at runtime, as their headers cannot be included within
the same .c file (there are just too many conflicting definitions and
declarations for that).

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28 14:56:58 +02:00
Johannes Schindelin
20c6cf7e95
urldata.h: move SSPI-specific #include to correct location
In 86b889485 (sasl_gssapi: Added GSS-API based Kerberos V5 variables,
2014-12-03), an SSPI-specific field was added to the kerberos5data
struct without moving the #include "curl_sspi.h" later in the same file.

This broke the build when SSPI was enabled, unless Secure Channel was
used as SSL backend, because it just so happens that Secure Channel also
requires "curl_sspi.h" to be #included.

In f4739f639 (urldata: include curl_sspi.h when Windows SSPI is enabled,
2017-02-21), this bug was fixed incorrectly: Instead of moving the
appropriate conditional #include, the Secure Channel-conditional part
was now also SSPI-conditional.

Fix this problem by moving the correct #include instead.

This is also required for an upcoming patch that moves all the Secure
Channel-specific stuff out of urldata.h and encapsulates it properly in
vtls/schannel.c instead.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28 14:56:58 +02:00
Johannes Schindelin
583cb03f91
urldata.h: remove support for obsolete PolarSSL version
Since 5017d5ada (polarssl: now require 1.3.0+, 2014-03-17), we require
a newer PolarSSL version. No need to keep code trying to support any
older version.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28 14:56:57 +02:00
Viktor Szakats
b7b4dc0d49 ssh: add the ability to enable compression (for SCP/SFTP)
The required low-level logic was already available as part of
`libssh2` (via `LIBSSH2_FLAG_COMPRESS` `libssh2_session_flag()`[1]
option.)

This patch adds the new `libcurl` option `CURLOPT_SSH_COMPRESSION`
(boolean) and the new `curl` command-line option `--compressed-ssh`
to request this `libssh2` feature. To have compression enabled, it
is required that the SSH server supports a (zlib) compatible
compression method and that `libssh2` was built with `zlib` support
enabled.

[1] https://www.libssh2.org/libssh2_session_flag.html

Ref: https://github.com/curl/curl/issues/1732
Closes https://github.com/curl/curl/pull/1735
2017-08-17 03:32:00 -04:00
Ryan Winograd
43d036e724
progress: Track total times following redirects
Update the progress timers `t_nslookup`, `t_connect`, `t_appconnect`,
`t_pretransfer`, and `t_starttransfer` to track the total times for
these activities when a redirect is followed. Previously, only the times
for the most recent request would be tracked.

Related changes:

  - Rename `Curl_pgrsResetTimesSizes` to `Curl_pgrsResetTransferSizes`
    now that the function only resets transfer sizes and no longer
    modifies any of the progress timers.

  - Add a bool to the `Progress` struct that is used to prevent
    double-counting `t_starttransfer` times.

Added test case 1399.

Fixes #522 and Known Bug 1.8
Closes #1602
Reported-by: joshhe on github
2017-08-15 18:58:31 +02:00
Jay Satiro
0b5665c98a digest_sspi: Don't reuse context if the user/passwd has changed
Bug: https://github.com/curl/curl/issues/1685
Reported-by: paulharris@users.noreply.github.com

Assisted-by: Isaac Boukris

Closes https://github.com/curl/curl/pull/1742
2017-08-10 01:40:05 -04:00
Daniel Stenberg
4dee50b9c8 timeval: struct curltime is a struct timeval replacement
... to make all libcurl internals able to use the same data types for
the struct members. The timeval struct differs subtly on several
platforms so it makes it cumbersome to use everywhere.

Ref: #1652
Closes #1693
2017-07-28 15:51:25 +02:00
Max Dymond
c75f63d7c4 handler: refactor connection checking
Add a new type of callback to Curl_handler which performs checks on
the connection. Alter RTSP so that it uses this callback to do its
own check on connection health.
2017-06-30 10:17:27 +02:00
Kamil Dudka
8924f58c37 CURLOPT_SOCKS5_AUTH: allowed methods for SOCKS5 proxy auth
If libcurl was built with GSS-API support, it unconditionally advertised
GSS-API authentication while connecting to a SOCKS5 proxy.  This caused
problems in environments with improperly configured Kerberos: a stock
libcurl failed to connect, despite libcurl built without GSS-API
connected fine using username and password.

This commit introduces the CURLOPT_SOCKS5_AUTH option to control the
allowed methods for SOCKS5 authentication at run time.

Note that a new option was preferred over reusing CURLOPT_PROXYAUTH
for compatibility reasons because the set of authentication methods
allowed by default was different for HTTP and SOCKS5 proxies.

Bug: https://curl.haxx.se/mail/lib-2017-01/0005.html
Closes https://github.com/curl/curl/pull/1454
2017-06-28 08:02:58 +02:00
Daniel Stenberg
9b167fd090 --request-target: instead of --strip-path-slash
... and CURLOPT_REQUEST_TARGET instead of CURLOPT_STRIP_PATH_SLASH.

This option instead provides the full "alternative" target to use in the
request, instead of extracting the path from the URL.

Test 1298 and 1299 updated accordingly.

Idea-by: Evert Pot
Suggestion: https://daniel.haxx.se/blog/2017/06/19/options-with-curl/comment-page-1/#comment-18373

Closes #1593
2017-06-21 23:39:10 +02:00
Daniel Stenberg
b778ae4c5e http: add --strip-path-slash and CURLOPT_STRIP_PATH_SLASH
... to enable sending "OPTIONS *" which wasn't possible previously.

This option currently only works for HTTP.

Added test cases 1298 + 1299 to verify

Fixes #1280
Closes #1462
2017-06-19 16:39:22 +02:00
Daniel Stenberg
01811b6740 http-proxy: fix chunked-encoded CONNECT responses
Regression since 5113ad0424.

... and remove 'flaky' from test 1061 again

Closes #1579
2017-06-16 21:56:56 +02:00
Daniel Stenberg
efc83d6d54 http-proxy: only attempt FTP over HTTP proxy
... all other non-HTTP protocol schemes are now defaulting to "tunnel
trough" mode if a HTTP proxy is specified. In reality there are no HTTP
proxies out there that allow those other schemes.

Assisted-by: Ray Satiro, Michael Kaufmann

Closes #1505
2017-06-15 13:46:48 +02:00
Daniel Stenberg
5113ad0424 http-proxy: do the HTTP CONNECT process entirely non-blocking
Mentioned as a problem since 2007 (8f87c15bda) and of course it
existed even before that.

Closes #1547
2017-06-14 23:43:52 +02:00
Daniel Stenberg
adef394ac5 timers: store internal time stamps as time_t instead of doubles
This gives us accurate precision and it allows us to avoid storing "no
time" for systems with too low timer resolution as we then bump the time
up to 1 microsecond. Should fix test 573 on windows.

Remove the now unused curlx_tvdiff_secs() function.

Maintains the external getinfo() API with using doubles.

Fixes #1531
2017-06-14 15:46:39 +01:00
Daniel Stenberg
31b39c40cf multi: use a fixed array of timers instead of malloc
... since the total amount is low this is faster, easier and reduces
memory overhead.

Also, Curl_expire_done() can now mark an expire timeout as done so that
it never times out.

Closes #1472
2017-05-10 12:55:36 +02:00
Dan Fandrich
6943085b50 gtls: fixed a lingering BUFSIZE reference 2017-05-02 09:14:26 +02:00
Daniel Stenberg
e3ed5cb380 BUFSIZE: rename to READBUFFER_*, make separate MASTERBUF_SIZE 2017-05-01 22:55:29 +02:00
Daniel Stenberg
89cf6f38d2 upload: UPLOAD_BUFSIZE is now for the upload buffer 2017-05-01 22:55:29 +02:00
Daniel Stenberg
0cab3a394a http-proxy: use a dedicated CONNECT response buffer
To make it suitably independent of the receive buffer and its flexible
size.
2017-05-01 22:55:29 +02:00
Daniel Stenberg
f535f4f5fc buffer_size: make sure it always has the correct size
Removes the need for CURL_BUFSIZE
2017-05-01 22:55:29 +02:00
Daniel Stenberg
c2ddc12d60 CURLOPT_BUFFERSIZE: 1024 bytes is now the minimum size
The buffer is needed to receive FTP, HTTP CONNECT responses etc so
already at this size things risk breaking and smaller is certainly not
wise.
2017-05-01 22:55:29 +02:00
Daniel Stenberg
e698b82287 transfer: remove 'uploadbuf' pointer and cleanup readwrite_upload()
The data->req.uploadbuf struct member served no good purpose, instead we
use ->state.uploadbuffer directly. It makes it clearer in the code which
buffer that's being used.

Removed the 'SingleRequest *' argument from the readwrite_upload() proto
as it can be derived from the Curl_easy struct. Also made the code in
the readwrite_upload() function use the 'k->' shortcut to all references
to struct fields in 'data->req', which previously was made with a mix of
both.
2017-04-25 10:55:35 +02:00
Jay Satiro
6b39f9c87e schannel: Don't treat encrypted partial record as pending data
- Track when the cached encrypted data contains only a partial record
  that can't be decrypted without more data (SEC_E_INCOMPLETE_MESSAGE).

- Change Curl_schannel_data_pending to return false in such a case.

Other SSL libraries have pending data functions that behave similarly.

Ref: https://github.com/curl/curl/pull/1387

Closes https://github.com/curl/curl/pull/1392
2017-04-22 22:39:40 -04:00
Daniel Stenberg
cbae73e1dd llist: no longer uses malloc
The 'list element' struct now has to be within the data that is being
added to the list. Removes 16.6% (tiny) mallocs from a simple HTTP
transfer. (96 => 80)

Also removed return codes since the llist functions can't fail now.

Test 1300 updated accordingly.

Closes #1435
2017-04-22 11:25:27 +02:00
Jay Satiro
33cfcfd9f0 TLS: Fix switching off SSL session id when client cert is used
Move the sessionid flag to ssl_primary_config so that ssl and proxy_ssl
will each have their own sessionid flag.

Regression since HTTPS-Proxy support was added in cb4e2be. Prior to that
this issue had been fixed in 247d890, CVE-2016-5419.

Bug: https://github.com/curl/curl/issues/1341
Reported-by: lijian996@users.noreply.github.com

The new incarnation of this bug is called CVE-2017-7468 and is documented
here: https://curl.haxx.se/docs/adv_20170419.html
2017-04-18 07:56:34 +02:00
Marcel Raad
c59fcdac90
nss: fix build after e60fe20fdf
Curl_llist_alloc is now Curl_llist_init.

Closes https://github.com/curl/curl/pull/1391
2017-04-06 12:52:13 +02:00
Daniel Stenberg
e60fe20fdf llist: replace Curl_llist_alloc with Curl_llist_init
No longer allocate the curl_llist head struct for lists separately.

Removes 17 (15%) tiny allocations in a normal "curl localhost" invoke.

closes #1381
2017-04-04 15:27:45 +02:00
Daniel Stenberg
452203341d pause: handle mixed types of data when paused
When receiving chunked encoded data with trailers, and the write
callback returns PAUSE, there might be both body and header to store to
resend on unpause. Previously libcurl returned error for that case.

Added test case 1540 to verify.

Reported-by: Stephen Toub
Fixes #1354
Closes #1357
2017-03-28 13:27:49 +02:00
klemens
f7df67cff0 spelling fixes
Closes #1356
2017-03-26 23:56:23 +02:00
Desmond O. Chang
d2bcf1e3e2 url: add option CURLOPT_SUPPRESS_CONNECT_HEADERS
- Add new option CURLOPT_SUPPRESS_CONNECT_HEADERS to allow suppressing
  proxy CONNECT response headers from the user callback functions
  CURLOPT_HEADERFUNCTION and CURLOPT_WRITEFUNCTION.

- Add new tool option --suppress-connect-headers to expose
  CURLOPT_SUPPRESS_CONNECT_HEADERS and allow suppressing proxy CONNECT
  response headers from --dump-header and --include.

Assisted-by: Jay Satiro
Assisted-by: CarloCannas@users.noreply.github.com
Closes https://github.com/curl/curl/pull/783
2017-03-12 01:32:33 -05:00
Isaac Boukris
5278462c32 authneg: clear auth.multi flag at http_done
This flag is meant for the current request based on authentication
state, once the request is done we can clear the flag.

Also change auth.multi to auth.multipass for better readability.

Fixes https://github.com/curl/curl/issues/1095
Closes https://github.com/curl/curl/pull/1326

Signed-off-by: Isaac Boukris <iboukris@gmail.com>
Reported-by: Michael Kaufmann
2017-03-11 18:12:08 +01:00
Jozef Kralik
6448f98c18 vtls: add options to specify range of enabled TLS versions
This commit introduces the CURL_SSLVERSION_MAX_* constants as well as
the --tls-max option of the curl tool.

Closes https://github.com/curl/curl/pull/1166
2017-03-08 15:54:07 +01:00
Viktor Szakats
f4739f639f urldata: include curl_sspi.h when Windows SSPI is enabled
f77dabe broke builds in Windows using Windows SSPI but not Windows SSL.

Bug: https://github.com/curl/curl/issues/1276
Reported-by: jveazey@users.noreply.github.com
2017-02-21 23:06:43 -05:00
Max Khon
f77dabefd8 digest_sspi: Fix nonce-count generation in HTTP digest
- on the first invocation: keep security context returned by
  InitializeSecurityContext()

- on subsequent invocations: use MakeSignature() instead of
  InitializeSecurityContext() to generate HTTP digest response

Bug: https://github.com/curl/curl/issues/870
Reported-by: Andreas Roth

Closes https://github.com/curl/curl/pull/1251
2017-02-20 00:53:01 -05:00
Michael Kaufmann
2f8d0df085 proxy: fix hostname resolution and IDN conversion
Properly resolve, convert and log the proxy host names.
Support the "--connect-to" feature for SOCKS proxies and for passive FTP
data transfers.

Follow-up to cb4e2be

Reported-by: Jay Satiro
Fixes https://github.com/curl/curl/issues/1248
2017-02-18 15:04:43 +01:00
Daniel Stenberg
c5c4e816b4 URL: only accept ";options" in SMTP/POP3/IMAP URL schemes
Fixes #1252
2017-02-10 14:51:53 +01:00
Richy Kim
6b7616690e CURLOPT_BUFFERSIZE: support enlarging receive buffer
Replace use of fixed macro BUFSIZE to define the size of the receive
buffer.  Reappropriate CURLOPT_BUFFERSIZE to include enlarging receive
buffer size.  Upon setting, resize buffer if larger than the current
default size up to a MAX_BUFSIZE (512KB). This can benefit protocols
like SFTP.

Closes #1222
2017-01-19 23:38:04 +01:00
Isaac Boukris
1d786faee1 unix_socket: add support for abstract unix domain socket
In addition to unix domain sockets, Linux also supports an
abstract namespace which is independent of the filesystem.

In order to support it, add new CURLOPT_ABSTRACT_UNIX_SOCKET
option which uses the same storage as CURLOPT_UNIX_SOCKET_PATH
internally, along with a flag to specify abstract socket.

On non-supporting platforms, the abstract address will be
interpreted as an empty string and fail gracefully.

Also add new --abstract-unix-socket tool parameter.

Signed-off-by: Isaac Boukris <iboukris@gmail.com>
Reported-by: Chungtsun Li (typeless)
Reviewed-by: Daniel Stenberg
Reviewed-by: Peter Wu
Closes #1197
Fixes #1061
2017-01-13 16:25:20 +01:00
Daniel Stenberg
845522cadb preproxy: renamed what was added as SOCKS_PROXY
CURLOPT_SOCKS_PROXY -> CURLOPT_PRE_PROXY

Added the corresponding --preroxy command line option. Sets a SOCKS
proxy to connect to _before_ connecting to a HTTP(S) proxy.
2016-12-16 16:04:23 +01:00
Anders Bakken
421f740164 http2: Fix crashes when parent stream gets aborted
Closes #1125
2016-11-28 15:06:17 +01:00
Thomas Glanzmann
4f8b17743d HTTPS Proxy: Implement CURLOPT_PROXY_PINNEDPUBLICKEY 2016-11-25 10:49:38 +01:00
Frank Gevaerts
ba410f6c64 add CURLINFO_SCHEME, CURLINFO_PROTOCOL, and %{scheme}
Adds access to the effectively used protocol/scheme to both libcurl and
curl, both in string and numeric (CURLPROTO_*) form.

Note that the string form will be uppercase, as it is just the internal
string.

As these strings are declared internally as const, and all other strings
returned by curl_easy_getinfo() are de-facto const as well, string
handling in getinfo.c got const-ified.

Closes #1137
2016-11-25 00:45:18 +01:00
Daniel Stenberg
dbadaebfc4 checksrc: code style: use 'char *name' style 2016-11-24 23:58:22 +01:00
Alex Rousskov
cb4e2be7c6 proxy: Support HTTPS proxy and SOCKS+HTTP(s)
* HTTPS proxies:

An HTTPS proxy receives all transactions over an SSL/TLS connection.
Once a secure connection with the proxy is established, the user agent
uses the proxy as usual, including sending CONNECT requests to instruct
the proxy to establish a [usually secure] TCP tunnel with an origin
server. HTTPS proxies protect nearly all aspects of user-proxy
communications as opposed to HTTP proxies that receive all requests
(including CONNECT requests) in vulnerable clear text.

With HTTPS proxies, it is possible to have two concurrent _nested_
SSL/TLS sessions: the "outer" one between the user agent and the proxy
and the "inner" one between the user agent and the origin server
(through the proxy). This change adds supports for such nested sessions
as well.

A secure connection with a proxy requires its own set of the usual SSL
options (their actual descriptions differ and need polishing, see TODO):

  --proxy-cacert FILE        CA certificate to verify peer against
  --proxy-capath DIR         CA directory to verify peer against
  --proxy-cert CERT[:PASSWD] Client certificate file and password
  --proxy-cert-type TYPE     Certificate file type (DER/PEM/ENG)
  --proxy-ciphers LIST       SSL ciphers to use
  --proxy-crlfile FILE       Get a CRL list in PEM format from the file
  --proxy-insecure           Allow connections to proxies with bad certs
  --proxy-key KEY            Private key file name
  --proxy-key-type TYPE      Private key file type (DER/PEM/ENG)
  --proxy-pass PASS          Pass phrase for the private key
  --proxy-ssl-allow-beast    Allow security flaw to improve interop
  --proxy-sslv2              Use SSLv2
  --proxy-sslv3              Use SSLv3
  --proxy-tlsv1              Use TLSv1
  --proxy-tlsuser USER       TLS username
  --proxy-tlspassword STRING TLS password
  --proxy-tlsauthtype STRING TLS authentication type (default SRP)

All --proxy-foo options are independent from their --foo counterparts,
except --proxy-crlfile which defaults to --crlfile and --proxy-capath
which defaults to --capath.

Curl now also supports %{proxy_ssl_verify_result} --write-out variable,
similar to the existing %{ssl_verify_result} variable.

Supported backends: OpenSSL, GnuTLS, and NSS.

* A SOCKS proxy + HTTP/HTTPS proxy combination:

If both --socks* and --proxy options are given, Curl first connects to
the SOCKS proxy and then connects (through SOCKS) to the HTTP or HTTPS
proxy.

TODO: Update documentation for the new APIs and --proxy-* options.
Look for "Added in 7.XXX" marks.
2016-11-24 23:41:44 +01:00
Marcel Raad
21aa32d30d lib: fix compiler warnings after de4de4e3c7
Visual C++ now complains about implicitly casting time_t (64-bit) to
long (32-bit). Fix this by changing some variables from long to time_t,
or explicitly casting to long where the public interface would be
affected.

Closes #1131
2016-11-18 10:11:55 +01:00
Isaac Boukris
0b8d682f81 Don't mix unix domain sockets with regular ones
When reusing a connection, make sure the unix domain
socket option matches.
2016-11-17 17:34:02 +01:00
Daniel Stenberg
de4de4e3c7 timeval: prefer time_t to hold seconds instead of long
... as long is still 32bit on modern 64bit windows machines, while
time_t is generally 64bit.
2016-11-12 13:32:21 +01:00
Jay Satiro
4564636781 easy: Initialize info variables on easy init and duphandle
- Call Curl_initinfo on init and duphandle.

Prior to this change the statistical and informational variables were
simply zeroed by calloc on easy init and duphandle. While zero is the
correct default value for almost all info variables, there is one where
it isn't (filetime initializes to -1).

Bug: https://github.com/curl/curl/issues/1103
Reported-by: Neal Poole
2016-11-05 23:06:28 -04:00
Daniel Stenberg
1671d84b38 vtls: only re-use session-ids using the same scheme
To make it harder to do cross-protocol mistakes
2016-10-13 11:24:16 +02:00
Michael Kaufmann
e9e5366193 New libcurl option to keep sending on error
Add the new option CURLOPT_KEEP_SENDING_ON_ERROR to control whether
sending the request body shall be completed when the server responds
early with an error status code.

This is suitable for manual NTLM authentication.

Reviewed-by: Jay Satiro

Closes https://github.com/curl/curl/pull/904
2016-09-22 22:22:31 +02:00
Jay Satiro
22cfeac730 easy: Reset all statistical session info in curl_easy_reset
Bug: https://github.com/curl/curl/issues/1017
Reported-by: Jeroen Ooms
2016-09-20 01:14:01 -04:00
Olivier Brunel
4b86113f5e speed caps: not based on average speeds anymore
Speed limits (from CURLOPT_MAX_RECV_SPEED_LARGE &
CURLOPT_MAX_SEND_SPEED_LARGE) were applied simply by comparing limits
with the cumulative average speed of the entire transfer; While this
might work at times with good/constant connections, in other cases it
can result to the limits simply being "ignored" for more than "short
bursts" (as told in man page).

Consider a download that goes on much slower than the limit for some
time (because bandwidth is used elsewhere, server is slow, whatever the
reason), then once things get better, curl would simply ignore the limit
up until the average speed (since the beginning of the transfer) reached
the limit.  This could prove the limit useless to effectively avoid
using the entire bandwidth (at least for quite some time).

So instead, we now use a "moving starting point" as reference, and every
time at least as much as the limit as been transferred, we can reset
this starting point to the current position. This gets a good limiting
effect that applies to the "current speed" with instant reactivity (in
case of sudden speed burst).

Closes #971
2016-09-04 13:11:23 +02:00
Daniel Stenberg
3533def3d5 http2: make sure stream errors don't needlessly close the connection
With HTTP/2 each transfer is made in an indivial logical stream over the
connection, making most previous errors that caused the connection to get
forced-closed now instead just kill the stream and not the connection.

Fixes #941
2016-08-28 16:44:49 +02:00
Jay Satiro
895168bfd3 schannel: Disable ALPN for Wine since it is causing problems
- Disable ALPN on Wine.

- Don't pass input secbuffer when ALPN is disabled.

When ALPN support was added a change was made to pass an input secbuffer
to initialize the context. When ALPN is enabled the buffer contains the
ALPN information, and when it's disabled the buffer is empty. In either
case this input buffer caused problems with Wine and connections would
not complete.

Bug: https://github.com/curl/curl/issues/983
Reported-by: Christian Fillion
2016-08-26 15:35:16 -04:00
Steve Holme
670802bd0b urldata.h: Corrected comment for httpcode which is also populated by SMTP
As of 7.25.0 and commit 5430007222.
2016-08-20 20:20:32 +01:00
Daniel Stenberg
247d890da8 TLS: switch off SSL session id when client cert is used
CVE-2016-5419
Bug: https://curl.haxx.se/docs/adv_20160803A.html
Reported-by: Bru Rom
Contributions-by: Eric Rescorla and Ray Satiro
2016-08-03 00:34:27 +02:00