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2017-03-13Improve code readbilitySylvestre Ledru
... by removing the else branch after a return, break or continue. Closes #1310
2017-03-11proxy: skip SSL initialization for closed connectionsMichael Kaufmann
This prevents a "Descriptor is not a socket" error for WinSSL. Reported-by: Antony74@users.noreply.github.com Reviewed-by: Jay Satiro Fixes https://github.com/curl/curl/issues/1239
2017-03-11authneg: clear auth.multi flag at http_doneIsaac Boukris
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
2017-03-07http2: Fix assertion error on redirect with CL=0Tatsuhiro Tsujikawa
This fixes assertion error which occurs when redirect is done with 0 length body via HTTP/2, and the easy handle is reused, but new connection is established due to hostname change: curl: http2.c:1572: ssize_t http2_recv(struct connectdata *, int, char *, size_t, CURLcode *): Assertion `httpc->drain_total >= data->state.drain' failed. To fix this bug, ensure that http2_handle_stream is called. Fixes #1286 Closes #1302
2017-02-17http: fix missing 'Content-Length: 0' while negotiating authIsaac Boukris
- While negotiating auth during PUT/POST if a user-specified Content-Length header is set send 'Content-Length: 0'. This is what we do already in HTTPREQ_POST_FORM and what we did in the HTTPREQ_POST case (regression since afd288b). Prior to this change no Content-Length header would be sent in such a case. Bug: https://curl.haxx.se/mail/lib-2017-02/0006.html Reported-by: Dominik Hölzl Closes https://github.com/curl/curl/pull/1242
2017-01-19CURLOPT_BUFFERSIZE: support enlarging receive bufferRichy Kim
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
2017-01-14http: print correct HTTP string in verbose output when using HTTP/2Alessandro Ghedini
Before: ``` % src/curl https://sigsegv.ninja/ -v --http2 ... > GET / HTTP/1.1 > Host: sigsegv.ninja > User-Agent: curl/7.52.2-DEV > Accept: */* > ... ``` After: ``` % src/curl https://sigsegv.ninja/ -v --http2 ... > GET / HTTP/2 > Host: sigsegv.ninja > User-Agent: curl/7.52.2-DEV > Accept: */* > ```
2016-12-23http: remove "Curl_http_done: called premature" messageDaniel Stenberg
... it only confuses people.
2016-12-14checksrc: warn for assignments within if() expressionsDaniel Stenberg
... they're already frowned upon in our source code style guide, this now enforces the rule harder.
2016-12-13checksrc: stricter no-space-before-paren enforcementDaniel Stenberg
In order to make the code style more uniform everywhere
2016-11-24proxy: Support HTTPS proxy and SOCKS+HTTP(s)Alex Rousskov
* 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.
2016-11-11realloc: use Curl_saferealloc to avoid common mistakesDaniel Stenberg
Discussed: https://curl.haxx.se/mail/lib-2016-11/0087.html
2016-10-31strcasecompare: all case insensitive string compares ignore locale nowDaniel Stenberg
We had some confusions on when each function was used. We should not act differently on different locales anyway.
2016-10-31strcasecompare: is the new name for strequal()Daniel Stenberg
... to make it less likely that we forget that the function actually does case insentive compares. Also replaced several invokes of the function with a plain strcmp when case sensitivity is not an issue (like comparing with "-").
2016-10-31cookies: getlist() now holds deep copies of all cookiesDaniel Stenberg
Previously it only held references to them, which was reckless as the thread lock was released so the cookies could get modified by other handles that share the same cookie jar over the share interface. CVE-2016-8623 Bug: https://curl.haxx.se/docs/adv_20161102I.html Reported-by: Cure53
2016-09-22New libcurl option to keep sending on errorMichael Kaufmann
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
2016-09-16http: accept "Transfer-Encoding: chunked" for HTTP/2 as wellDaniel Stenberg
... but don't send the actual header over the wire as it isn't accepted. Chunked uploading is still triggered using this method. Fixes #1013 Fixes #662
2016-08-28http2: make sure stream errors don't needlessly close the connectionDaniel Stenberg
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
2016-08-25HTTP: stop parsing headers when switching to unknown protocolsMichael Kaufmann
- unknown protocols probably won't send more headers (e.g. WebSocket) - improved comments and moved them to the correct case statements Closes #899
2016-08-21http.c: Remove duplicate (authp->avail & CURLAUTH_DIGEST) checkSteve Holme
From commit 2708d4259b.
2016-08-20http.c: Corrected indentation change from commit 2708d4259bSteve Holme
Made by Visual Studio's auto-correct feature and missed by me in my own code reviews!
2016-08-20http: Added calls to Curl_auth_is_<mechansism>_supported()Steve Holme
Hooked up the HTTP authentication layer to query the new 'is mechanism supported' functions when deciding what mechanism to use. As per commit 00417fd66c existing functionality is maintained for now.
2016-08-16Revert "Proxy-Connection: stop sending this header by default"Daniel Stenberg
This reverts commit 113f04e664b16b944e64498a73a4dab990fe9a68.
2016-06-28cleanup: minor code cleanup in Curl_http_readwrite_headers()Michael Kaufmann
- the expression of an 'if' was always true - a 'while' contained a condition that was always true - use 'if(k->exp100 > EXP100_SEND_DATA)' instead of 'if(k->exp100)' - fixed a typo Closes #889
2016-06-22internals: rename the SessionHandle struct to Curl_easyDaniel Stenberg
2016-06-21cleanup: fix method names in code commentsMichael Kaufmann
Closes #887
2016-06-05http: Fix HTTP/2 connection reuseJay Satiro
- Change the parser to not require a minor version for HTTP/2. HTTP/2 connection reuse broke when we changed from HTTP/2.0 to HTTP/2 in 8243a95 because the parser still expected a minor version. Bug: https://github.com/curl/curl/issues/855 Reported-by: Andrew Robbins, Frank Gevaerts
2016-05-09TLS: move the ALPN/NPN enable bits to the connectionDaniel Stenberg
Only protocols that actually have a protocol registered for ALPN and NPN should try to get that negotiated in the TLS handshake. That is only HTTPS (well, http/1.1 and http/2) right now. Previously ALPN and NPN would wrongly be used in all handshakes if libcurl was built with it enabled. Reported-by: Jay Satiro Fixes #789
2016-05-02http: make sure a blank header overrides accept_decodingDaniel Stenberg
Reported-by: rcanavan Assisted-by: Isaac Boukris Closes #785
2016-04-29lib: include curl_printf.h as one of the last headersDaniel Stenberg
curl_printf.h defines printf to curl_mprintf, etc. This can cause problems with external headers which may use __attribute__((format(printf, ...))) markers etc. To avoid that they cause problems with system includes, we include curl_printf.h after any system headers. That makes the three last headers to always be, and we keep them in this order: curl_printf.h curl_memory.h memdebug.h None of them include system headers, they all do funny #defines. Reported-by: David Benjamin Fixes #743
2016-04-26CONNECT_ONLY: don't close connection on GSS 401/407 reponsesMarcel Raad
Previously, connections were closed immediately before the user had a chance to extract the socket when the proxy required Negotiate authentication. This regression was brought in with the security fix in commit 79b9d5f1a42578f Closes #655
2016-04-17news: CURLOPT_CONNECT_TO and --connect-toMichael Kaufmann
Makes curl connect to the given host+port instead of the host+port found in the URL.
2016-04-03code: style updatesDaniel Stenberg
2016-03-31http2: support "prior knowledge", no upgrade from HTTP/1.1Diego Bes
Supports HTTP/2 over clear TCP - Optimize switching to HTTP/2 by removing calls to init and setup before switching. Switching will eventually call setup and setup calls init. - Supports new version to “force” the use of HTTP/2 over clean TCP - Add common line parameter “--http2-prior-knowledge” to the Curl command line tool.
2016-03-31http: remove ((expression)) double parenthesesDaniel Stenberg
2016-03-31Curl_add_buffer_send: avoid possible NULL dereferenceDaniel Stenberg
... as we check for a NULL pointer below, we move the derefence to after the check. Detected by PVS Studio. Reported-by: Alexis La Goutte
2016-03-30multi: turn Curl_done into file local multi_doneDaniel Stenberg
... as it now is used by multi.c only.
2016-03-27http_ntlm: Renamed from curl_ntlm.[c|h]Steve Holme
Renamed the header and source files for this module as they are HTTP specific and as such, they should use the naming convention as other HTTP authentication source files do - this revert commit 260ee6b7bf. Note: We could also rename curl_ntlm_wb.[c|h], however, the Winbind code needs separating from the HTTP protocol and migrating into the vauth directory, thus adding support for Winbind to the SASL based protocols such as IMAP, POP3 and SMTP.
2016-03-26vauth: Moved the Negotiate authentication code to the new vauth directorySteve Holme
Part 1 of 2 - Moved the SSPI based Negotiate authentication code.
2016-03-24http: Minor update based on CODE_STYLE guidelinesSteve Holme
2016-03-20connect/ntlm/http: Fixed compilation warnings when verbose strings disabledSteve Holme
warning C4189: 'data': local variable is initialized but not referenced
2016-02-17http2: don't decompress gzip decoding automaticallyDaniel Stenberg
At one point during the development of HTTP/2, the commit 133cdd29ea0 introduced automatic decompression of Content-Encoding as that was what the spec said then. Now however, HTTP/2 should work the same way as HTTP/1 in this regard. Reported-by: Kazuho Oku Closes #661
2016-02-16http: Don't break the header into chunks if HTTP/2Tatsuhiro Tsujikawa
nghttp2 callback deals with TLS layer and therefore the header does not need to be broken into chunks. Bug: https://github.com/curl/curl/issues/659 Reported-by: Kazuho Oku
2016-02-08Proxy-Connection: stop sending this header by defaultDaniel Stenberg
RFC 7230 says we should stop. Firefox already stopped. Bug: https://github.com/curl/curl/issues/633 Reported-By: Brad Fitzpatrick Closes #633
2016-02-03URLs: change all http:// URLs to https://Daniel Stenberg
2015-12-15http2: Support trailer fieldsTatsuhiro Tsujikawa
This commit adds trailer support in HTTP/2. In HTTP/1.1, chunked encoding must be used to send trialer fields. HTTP/2 deprecated any trandfer-encoding, including chunked. But trailer fields are now always available. Since trailer fields are relatively rare these days (gRPC uses them extensively though), allocating buffer for trailer fields is done when we detect that HEADERS frame containing trailer fields is started. We use Curl_add_buffer_* functions to buffer all trailers, just like we do for regular header fields. And then deliver them when stream is closed. We have to be careful here so that all data are delivered to upper layer before sending trailers to the application. We can deliver trailer field one by one using NGHTTP2_ERR_PAUSE mechanism, but current method is far more simple. Another possibility is use chunked encoding internally for HTTP/2 traffic. I have not tested it, but it could add another overhead. Closes #564
2015-12-13http: add libcurl option to allow HTTP/2 for HTTPS onlyDaniel Stenberg
... and stick to 1.1 for HTTP. This is in line with what browsers do and should have very little risk.
2015-12-09fix b6d5cb40d7038feDaniel Stenberg
2015-12-08build: fix compilation error with CURL_DISABLE_VERBOSE_STRINGSChristian Stewart
With curl disable verbose strings in http.c the compilation fails due to the data variable being undefined later on in the function. Closes #558
2015-11-25timecond: do not add if-modified-since without timeconditionDaniel Stenberg
The RTSP code path didn't skip adding the if-modified-since for certain RTSP code paths, even if CURLOPT_TIMECONDITION was set to CURL_TIMECOND_NONE. Also, an unknown non-zero CURLOPT_TIMECONDITION value no longer equals CURL_TIMECOND_IFMODSINCE. Bug: http://stackoverflow.com/questions/33903982/curl-timecond-none-doesnt-work-how-to-remove-if-modified-since-header
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