Michael Kaufmann [Sun, 18 Dec 2016 11:51:48 +0000 (12:51 +0100)]
curl_easy_recv: Improve documentation and example program
Follow-up to 82245ea: Fix the example program sendrecv.c (handle
CURLE_AGAIN, handle incomplete send). Improve the documentation
for curl_easy_recv() and curl_easy_send().
Reviewed-by: Frank Meier Assisted-by: Jay Satiro
See https://github.com/curl/curl/pull/1134
Isaac Boukris [Tue, 6 Dec 2016 22:39:08 +0000 (00:39 +0200)]
Curl_getconnectinfo: avoid checking if the connection is closed
It doesn't benefit us much as the connection could get closed at
any time, and also by checking we lose the ability to determine
if the socket was closed by reading zero bytes.
Reported-by: Michael Kaufmann
Closes https://github.com/curl/curl/pull/1134
Daniel Stenberg [Fri, 16 Dec 2016 14:10:19 +0000 (15:10 +0100)]
CURLOPT_SOCKS_PROXYTYPE: removed
This was added as part of the SOCKS+HTTPS proxy merge but there's no
need to support this as we prefer to have the protocol specified as a
prefix instead.
Adam Langley [Wed, 7 Dec 2016 20:18:21 +0000 (12:18 -0800)]
openssl: don't use OpenSSL's ERR_PACK.
ERR_PACK is an internal detail of OpenSSL. Also, when using it, a
function name must be specified which is overly specific: the test will
break whenever OpenSSL internally change things so that a different
function creates the error.
Daniel Stenberg [Tue, 29 Nov 2016 23:31:23 +0000 (00:31 +0100)]
http_proxy: simplify CONNECT response reading
Since it now reads responses one byte a time, a loop could be removed
and it is no longer limited to get the whole response within 16K, it is
now instead only limited to 16K maximum header line lengths.
Jay Satiro [Fri, 25 Nov 2016 03:25:14 +0000 (22:25 -0500)]
tool_urlglob: Improve sanity check in glob_range
Prior to this change we depended on errno if strtol could not perform a
conversion. POSIX says EINVAL *may* be set. Some implementations like
Microsoft's will not set it if there's no conversion.
Frank Gevaerts [Wed, 23 Nov 2016 09:44:18 +0000 (10:44 +0100)]
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.
Daniel Stenberg [Fri, 18 Nov 2016 07:46:59 +0000 (08:46 +0100)]
gtls: fix indent to silence compiler warning
vtls/gtls.c: In function ‘Curl_gtls_data_pending’:
vtls/gtls.c:1429:3: error: this ‘if’ clause does not guard... [-Werror=misleading-indentation]
if(conn->proxy_ssl[connindex].session &&
^~
vtls/gtls.c:1433:5: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘if’
return res;
Alex Rousskov [Wed, 16 Nov 2016 17:49:15 +0000 (10:49 -0700)]
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.
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.
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