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Updated cURL version.

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This commit is contained in:
Asher Baker
2013-03-17 22:23:20 +00:00
parent 986aa2a477
commit 63175aa3cb
1510 changed files with 213259 additions and 161405 deletions
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extensions/curl/curl-src/docs/TODO
+261 -177
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@@ -1,7 +1,7 @@
_ _ ____ _
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/ __| | | | |_) | |
| (__| |_| | _ <| |___
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/ __| | | | |_) | |
| (__| |_| | _ <| |___
\___|\___/|_| \_\_____|
Things that could be nice to do in the future
@@ -12,31 +12,32 @@
All bugs documented in the KNOWN_BUGS document are subject for fixing!
1. libcurl
1.1 Zero-copy interface
1.2 More data sharing
1.3 struct lifreq
1.4 signal-based resolver timeouts
1.5 get rid of PATH_MAX
1.6 progress callback without doubles
1.7 Happy Eyeball dual stack connect
2. libcurl - multi interface
2.1 More non-blocking
2.2 Remove easy interface internally
2.3 Avoid having to remove/readd handles
2.2 Fix HTTP Pipelining for PUT
3. Documentation
3.1 More and better
4. FTP
4.1 PRET
4.1 HOST
4.2 Alter passive/active on failure and retry
4.3 Earlier bad letter detection
4.4 REST for large files
4.5 FTP proxy support
4.6 PORT port range
4.7 ASCII support
4.6 ASCII support
5. HTTP
5.1 Better persistency for HTTP 1.0
5.2 support FF3 sqlite cookie files
5.3 Rearrange request header order
6. TELNET
6.1 ditch stdin
@@ -52,68 +53,72 @@
7.5 Export session ids
7.6 Provide callback for cert verification
7.7 Support other SSL libraries
7.8 Support SRP on the TLS layer
7.9 improve configure --with-ssl
7.10 Support DANE
8. GnuTLS
8.1 Make NTLM work without OpenSSL functions
8.2 SSL engine stuff
8.3 SRP
8.4 non-blocking
8.5 check connection
8.1 SSL engine stuff
8.3 check connection
9. Other protocols
9.1 ditch ldap-specific select
9. SMTP
9.1 Specify the preferred authentication mechanism
9.2 Initial response
9.3 Pipelining
10. POP3
10.1 auth= in URLs
11. LDAP
11.1 SASL based authentication mechanisms
12. Other protocols
10. New protocols
10.1 RTSP
10.2 RSYNC
10.3 RTMP
13. New protocols
13.1 RSYNC
11. Client
11.1 Content-Disposition
11.2 sync
11.3 glob posts
11.4 prevent file overwriting
11.5 ftp wildcard download
11.6 simultaneous parallel transfers
11.7 provide formpost headers
11.8 url-specific options
11.9 metalink support
11.10 warning when setting an option
14. SASL
14.1 Other authentication mechanisms
15. Client
15.1 sync
15.2 glob posts
15.3 prevent file overwriting
15.4 simultaneous parallel transfers
15.5 provide formpost headers
15.6 url-specific options
15.7 warning when setting an option
15.8 IPv6 addresses with globbing
12. Build
12.1 roffit
16. Build
16.1 roffit
13. Test suite
13.1 SSL tunnel
13.2 nicer lacking perl message
13.3 more protocols supported
13.4 more platforms supported
17. Test suite
17.1 SSL tunnel
17.2 nicer lacking perl message
17.3 more protocols supported
17.4 more platforms supported
14. Next SONAME bump
14.1 http-style HEAD output for ftp
14.2 combine error codes
14.3 extend CURLOPT_SOCKOPTFUNCTION prototype
18. Next SONAME bump
18.1 http-style HEAD output for ftp
18.2 combine error codes
18.3 extend CURLOPT_SOCKOPTFUNCTION prototype
15. Next major release
15.1 cleanup return codes
15.2 remove obsolete defines
15.3 size_t
15.4 remove several functions
15.5 remove CURLOPT_FAILONERROR
15.6 remove CURLOPT_DNS_USE_GLOBAL_CACHE
19. Next major release
19.1 cleanup return codes
19.2 remove obsolete defines
19.3 size_t
19.4 remove several functions
19.5 remove CURLOPT_FAILONERROR
19.6 remove CURLOPT_DNS_USE_GLOBAL_CACHE
19.7 remove progress meter from libcurl
19.8 remove 'curl_httppost' from public
19.9 have form functions use CURL handle argument
19.10 Add CURLOPT_MAIL_CLIENT option
==============================================================================
1. libcurl
1.1 Zero-copy interface
Introduce another callback interface for upload/download that makes one less
copy of data and thus a faster operation.
[http://curl.haxx.se/dev/no_copy_callbacks.txt]
1.2 More data sharing
curl_share_* functions already exist and work, and they can be extended to
@@ -130,7 +135,7 @@
libcurl built without an asynchronous resolver library uses alarm() to time
out DNS lookups. When a timeout occurs, this causes libcurl to jump from the
signal handler back into the library with a sigsetjmp, which effectively
signal handler back into the library with a sigsetjmp, which effectively
causes libcurl to continue running within the signal handler. This is
non-portable and could cause problems on some platforms. A discussion on the
problem is available at http://curl.haxx.se/mail/lib-2008-09/0197.html
@@ -138,38 +143,58 @@
Also, alarm() provides timeout resolution only to the nearest second. alarm
ought to be replaced by setitimer on systems that support it.
1.5 get rid of PATH_MAX
Having code use and rely on PATH_MAX is not nice:
http://insanecoding.blogspot.com/2007/11/pathmax-simply-isnt.html
Currently the SSH based code uses it a bit, but to remove PATH_MAX from there
we need libssh2 to properly tell us when we pass in a too small buffer and
its current API (as of libssh2 1.2.7) doesn't.
1.6 progress callback without doubles
The progress callback was introduced way back in the days and the choice to
use doubles in the arguments was possibly good at the time. Today the doubles
only confuse users and make the amounts less precise. We should introduce
another progress callback option that take precedence over the old one and
have both co-exist for a forseeable time until we can remove the double-using
one.
1.7 Happy Eyeball dual stack connect
In order to make alternative technologies not suffer when transitioning, like
when introducing IPv6 as an alternative to IPv4 and there are more than one
option existing simultaneously there are reasons to reconsider internal
choices.
To make libcurl do blazing fast IPv6 in a dual-stack configuration, this needs
to be addressed:
http://tools.ietf.org/html/rfc6555
2. libcurl - multi interface
2.1 More non-blocking
Make sure we don't ever loop because of non-blocking sockets returning
EWOULDBLOCK or similar. The GnuTLS connection etc.
EWOULDBLOCK or similar. Blocking cases include:
2.2 Remove easy interface internally
- Name resolves on non-windows unless c-ares is used
- NSS SSL connections
- HTTP proxy CONNECT operations
- SOCKS proxy handshakes
- file:// transfers
- TELNET transfers
- The "DONE" operation (post transfer protocol-specific actions) for the
protocols SFTP, SMTP, FTP. Fixing Curl_done() for this is a worthy task.
Make curl_easy_perform() a wrapper-function that simply creates a multi
handle, adds the easy handle to it, runs curl_multi_perform() until the
transfer is done, then detach the easy handle, destroy the multi handle and
return the easy handle's return code. This will thus make everything
internally use and assume the multi interface. The select()-loop should use
curl_multi_socket().
2.2 Fix HTTP Pipelining for PUT
2.3 Avoid having to remove/readd handles
curl_multi_handle_control() - this can control the easy handle (while) added
to a multi handle in various ways:
o RESTART, unconditionally restart this easy handle's transfer from the
start, re-init the state
o RESTART_COMPLETED, restart this easy handle's transfer but only if the
existing transfer has already completed and it is in a "finished state".
o STOP, just stop this transfer and consider it completed
o PAUSE?
o RESUME?
HTTP Pipelining can be a way to greatly enhance performance for multiple
serial requests and currently libcurl only supports that for HEAD and GET
requests but it should also be possible for PUT.
3. Documentation
@@ -179,12 +204,12 @@
4. FTP
4.1 PRET
4.1 HOST
PRET is a command that primarily "drftpd" supports, which could be useful
when using libcurl against such a server. It is a non-standard and a rather
oddly designed command, but...
http://curl.haxx.se/bug/feature.cgi?id=1729967
HOST is a suggested command in the works for a client to tell which host name
to use, to offer FTP servers named-based virtual hosting:
http://tools.ietf.org/html/draft-hethmon-mcmurray-ftp-hosts-11
4.2 Alter passive/active on failure and retry
@@ -210,13 +235,7 @@
from ncftp. This is not a subject without debate, and is probably not really
suitable for libcurl. http://curl.haxx.se/mail/archive-2003-04/0126.html
4.6 PORT port range
Make CURLOPT_FTPPORT support an additional port number on the IP/if/name,
like "blabla:[port]" or possibly even "blabla:[portfirst]-[portsecond]".
http://curl.haxx.se/bug/feature.cgi?id=1505166
4.7 ASCII support
4.6 ASCII support
FTP ASCII transfers do not follow RFC959. They don't convert the data
accordingly.
@@ -234,6 +253,19 @@
We should consider how (lib)curl can/should support this.
http://curl.haxx.se/bug/feature.cgi?id=1871388
5.3 Rearrange request header order
Server implementors often make an effort to detect browser and to reject
clients it can detect to not match. One of the last details we cannot yet
control in libcurl's HTTP requests, which also can be exploited to detect
that libcurl is in fact used even when it tries to impersonate a browser, is
the order of the request headers. I propose that we introduce a new option in
which you give headers a value, and then when the HTTP request is built it
sorts the headers based on that number. We could then have internally created
headers use a default value so only headers that need to be moved have to be
specified.
6. TELNET
6.1 ditch stdin
@@ -305,83 +337,86 @@ to provide the data to send.
Make curl's SSL layer capable of using other free SSL libraries. Such as
MatrixSSL (http://www.matrixssl.org/).
7.8 Support SRP on the TLS layer
Peter Sylvester's patch for SRP on the TLS layer. Awaits OpenSSL support for
this, no need to support this in libcurl before there's an OpenSSL release
that does it.
7.9 improve configure --with-ssl
make the configure --with-ssl option first check for OpenSSL, then GnuTLS,
then NSS...
7.10 Support DANE
DNS-Based Authentication of Named Entities (DANE) is a way to provide SSL
keys and certs over DNS using DNSSEC as an alternative to the CA model.
http://www.rfc-editor.org/rfc/rfc6698.txt
8. GnuTLS
8.1 Make NTLM work without OpenSSL functions
Get NTLM working using the functions provided by libgcrypt, since GnuTLS
already depends on that to function. Not strictly SSL/TLS related, but
hey... Another option is to get available DES and MD4 source code from the
cryptopp library. They are fine license-wise, but are C++.
8.2 SSL engine stuff
8.1 SSL engine stuff
Is this even possible?
8.3 SRP
Work out a common method with Peter Sylvester's OpenSSL-patch for SRP on the
TLS to provide name and password. GnuTLS already supports it...
8.4 non-blocking
Fix the connection phase to be non-blocking when multi interface is used
8.5 check connection
8.3 check connection
Add a way to check if the connection seems to be alive, to correspond to the
SSL_peak() way we use with OpenSSL.
9. Other protocols
9.1 ditch ldap-specific select
9. SMTP
* Look over the implementation. The looping will have to "go away" from the
lib/ldap.c source file and get moved to the main network code so that the
multi interface and friends will work for LDAP as well.
9.1 Specify the preferred authentication mechanism
9.2 stop TFTP blocking
Add the ability to specify the preferred authentication mechanism or a list
of mechanisms that should be used. Not only that, but the order that is
returned by the server during the EHLO response should be honored by curl.
Stop TFTP from being blocking and doing its own read loop in tftp_do.
9.2 Initial response
10. New protocols
Add the ability for the user to specify whether the initial response is
included in the AUTH command. Some email servers, such as Microsoft
Exchange, can work with either whilst others need to have the initial
response sent separately:
10.1 RTSP
http://curl.haxx.se/mail/lib-2012-03/0114.html
RFC2326 (protocol - very HTTP-like, also contains URL description)
9.3 Pipelining
10.2 RSYNC
Add support for pipelining emails.
There's no RFC for protocol nor URI/URL format. An implementation should
most probably use an existing rsync library, such as librsync.
10. POP3
10.3 RTMP
10.1 auth= in URLs
There exists a patch that claims to introduce this protocol:
http://osdir.com/ml/gnu.gnash.devel2/2006-11/msg00278.html, further details
in the feature-request: http://curl.haxx.se/bug/feature.cgi?id=1843469
Being able to specify the preferred authentication mechanism in the URL as
per RFC2384.
11. Client
11. LDAP
11.1 Content-Disposition
11.1 SASL based authentication mechanisms
Add option that is similar to -O but that takes the output file name from the
Content-Disposition: header, and/or uses the local file name used in
redirections for the cases the server bounces the request further to a
different file (name): http://curl.haxx.se/bug/feature.cgi?id=1364676
Currently the LDAP module only supports ldap_simple_bind_s() in order to bind
to an LDAP server. However, this function sends username and password details
using the simple authentication mechanism (as clear text). However, it should
be possible to use ldap_bind_s() instead specifing the security context
information ourselves.
11.2 sync
12. Other protocols
13. New protocols
13.1 RSYNC
There's no RFC for the protocol or an URI/URL format. An implementation
should most probably use an existing rsync library, such as librsync.
14. SASL
14.1 Other authentication mechanisms
Add support for gssapi to SMTP, POP3 and IMAP.
15. Client
15.1 sync
"curl --sync http://example.com/feed[1-100].rss" or
"curl --sync http://example.net/{index,calendar,history}.html"
@@ -390,12 +425,12 @@ to provide the data to send.
remote file is newer than the local file. A Last-Modified HTTP date header
should also be used to set the mod date on the downloaded file.
11.3 glob posts
15.2 glob posts
Globbing support for -d and -F, as in 'curl -d "name=foo[0-9]" URL'.
This is easily scripted though.
11.4 prevent file overwriting
15.3 prevent file overwriting
Add an option that prevents cURL from overwriting existing local files. When
used, and there already is an existing file with the target file name
@@ -403,18 +438,14 @@ to provide the data to send.
existing). So that index.html becomes first index.html.1 and then
index.html.2 etc.
11.5 ftp wildcard download
"curl ftp://site.com/*.txt"
11.6 simultaneous parallel transfers
15.4 simultaneous parallel transfers
The client could be told to use maximum N simultaneous parallel transfers and
then just make sure that happens. It should of course not make more than one
connection to the same remote host. This would require the client to use the
multi interface. http://curl.haxx.se/bug/feature.cgi?id=1558595
11.7 provide formpost headers
15.5 provide formpost headers
Extending the capabilities of the multipart formposting. How about leaving
the ';type=foo' syntax as it is and adding an extra tag (headers) which
@@ -428,7 +459,7 @@ to provide the data to send.
which should overwrite the program reasonable defaults (plain/text,
8bit...)
11.8 url-specific options
15.6 url-specific options
Provide a way to make options bound to a specific URL among several on the
command line. Possibly by letting ':' separate options between URLs,
@@ -442,55 +473,57 @@ to provide the data to send.
The example would do a POST-GET-POST combination on a single command line.
11.9 metalink support
Add metalink support to curl (http://www.metalinker.org/). This is most useful
with simultaneous parallel transfers (11.6) but not necessary.
11.10 warning when setting an option
15.7 warning when setting an option
Display a warning when libcurl returns an error when setting an option.
This can be useful to tell when support for a particular feature hasn't been
compiled into the library.
12. Build
15.8 IPv6 addresses with globbing
12.1 roffit
Currently the command line client needs to get url globbing disabled (with
-g) for it to support IPv6 numerical addresses. This is a rather silly flaw
that should be corrected. It probably involves a smarter detection of the
'[' and ']' letters.
16. Build
16.1 roffit
Consider extending 'roffit' to produce decent ASCII output, and use that
instead of (g)nroff when building src/hugehelp.c
instead of (g)nroff when building src/tool_hugehelp.c
13. Test suite
17. Test suite
13.1 SSL tunnel
17.1 SSL tunnel
Make our own version of stunnel for simple port forwarding to enable HTTPS
and FTP-SSL tests without the stunnel dependency, and it could allow us to
provide test tools built with either OpenSSL or GnuTLS
13.2 nicer lacking perl message
17.2 nicer lacking perl message
If perl wasn't found by the configure script, don't attempt to run the tests
but explain something nice why it doesn't.
13.3 more protocols supported
17.3 more protocols supported
Extend the test suite to include more protocols. The telnet could just do ftp
or http operations (for which we have test servers).
13.4 more platforms supported
17.4 more platforms supported
Make the test suite work on more platforms. OpenBSD and Mac OS. Remove
fork()s and it should become even more portable.
14. Next SONAME bump
18. Next SONAME bump
14.1 http-style HEAD output for ftp
18.1 http-style HEAD output for ftp
#undef CURL_FTP_HTTPSTYLE_HEAD in lib/ftp.c to remove the HTTP-style headers
from being output in NOBODY requests over ftp
14.2 combine error codes
18.2 combine error codes
Combine some of the error codes to remove duplicates. The original
numbering should not be changed, and the old identifiers would be
@@ -500,37 +533,44 @@ to provide the data to send.
Candidates for removal and their replacements:
CURLE_FILE_COULDNT_READ_FILE => CURLE_REMOTE_FILE_NOT_FOUND
CURLE_FTP_COULDNT_RETR_FILE => CURLE_REMOTE_FILE_NOT_FOUND
CURLE_FTP_COULDNT_USE_REST => CURLE_RANGE_ERROR
CURLE_FUNCTION_NOT_FOUND => CURLE_FAILED_INIT
CURLE_LDAP_INVALID_URL => CURLE_URL_MALFORMAT
CURLE_TFTP_NOSUCHUSER => CURLE_TFTP_ILLEGAL
CURLE_TFTP_NOTFOUND => CURLE_REMOTE_FILE_NOT_FOUND
CURLE_TFTP_PERM => CURLE_REMOTE_ACCESS_DENIED
14.3 extend CURLOPT_SOCKOPTFUNCTION prototype
18.3 extend CURLOPT_SOCKOPTFUNCTION prototype
The current prototype only provides 'purpose' that tells what the
connection/socket is for, but not any protocol or similar. It makes it hard
for applications to differentiate on TCP vs UDP and even HTTP vs FTP and
similar.
15. Next major release
10. Next major release
15.1 cleanup return codes
19.1 cleanup return codes
curl_easy_cleanup() returns void, but curl_multi_cleanup() returns a
CURLMcode. These should be changed to be the same.
15.2 remove obsolete defines
19.2 remove obsolete defines
remove obsolete defines from curl/curl.h
15.3 size_t
19.3 size_t
make several functions use size_t instead of int in their APIs
15.4 remove several functions
19.4 remove several functions
remove the following functions from the public API:
@@ -543,15 +583,59 @@ to provide the data to send.
curl_strnequal
They will instead become curlx_ - alternatives. That makes the curl app
still capable of building with them from source.
still capable of using them, by building with them from source.
15.5 remove CURLOPT_FAILONERROR
These functions have no purpose anymore:
curl_multi_socket
curl_multi_socket_all
19.5 remove CURLOPT_FAILONERROR
Remove support for CURLOPT_FAILONERROR, it has gotten too kludgy and weird
internally. Let the app judge success or not for itself.
15.6 remove CURLOPT_DNS_USE_GLOBAL_CACHE
19.6 remove CURLOPT_DNS_USE_GLOBAL_CACHE
Remove support for a global DNS cache. Anything global is silly, and we
already offer the share interface for the same functionality but done
"right".
19.7 remove progress meter from libcurl
The internally provided progress meter output doesn't belong in the library.
Basically no application wants it (apart from curl) but instead applications
can and should do their own progress meters using the progress callback.
The progress callback should then be bumped as well to get proper 64bit
variable types passed to it instead of doubles so that big files work
correctly.
19.8 remove 'curl_httppost' from public
curl_formadd() was made to fill in a public struct, but the fact that the
struct is public is never really used by application for their own advantage
but instead often restricts how the form functions can or can't be modified.
Changing them to return a private handle will benefit the implementation and
allow us much greater freedoms while still maintining a solid API and ABI.
19.9 have form functions use CURL handle argument
curl_formadd() and curl_formget() both currently have no CURL handle
argument, but both can use a callback that is set in the easy handle, and
thus curl_formget() with callback cannot function without first having
curl_easy_perform() (or similar) called - which is hard to grasp and a design
mistake.
19.10 Add CURLOPT_MAIL_CLIENT option
Rather than use the URL to specify the mail client string to present in the
HELO and EHLO commands, libcurl should support a new CURLOPT specifically for
specifing this data as the URL is non-standard and to be honest a bit of a
hack ;-)
Please see the following thread for more information:
http://curl.haxx.se/mail/lib-2012-05/0178.html