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2018-03-28merge revision(s) 60584,62954,62955,62956,62957,62958,62959,63008:nagachika
webrick: support Proc objects as body responses * lib/webrick/httpresponse.rb (send_body): call send_body_proc (send_body_proc): new method (class ChunkedWrapper): new class * test/webrick/test_httpresponse.rb (test_send_body_proc): new test (test_send_body_proc_chunked): ditto [Feature #855] webrick/httpresponse: IO.copy_stream for regular files Remove the redundant _send_file method since its functionality is unnecessary with IO.copy_stream. IO.copy_stream also allows the use of sendfile under some OSes to speed up copies to non-TLS sockets. Testing with "curl >/dev/null" and "ruby -run -e httpd" to read a 1G file over Linux loopback reveals a reduction from around ~0.770 to ~0.490 seconds on the client side. * lib/webrick/httpresponse.rb (send_body_io): use IO.copy_stream (_send_file): remove [Feature #14237] webrick: use IO.copy_stream for single range response This is also compatible with range responses generated by Rack::File (tested with rack 2.0.3). * lib/webrick/httpresponse.rb (send_body_io): use Content-Range * lib/webrick/httpservlet/filehandler.rb (make_partial_content): use File object for the single range case * test/webrick/test_filehandler.rb (get_res_body): use send_body to test result test/webrick/test_filehandler.rb: stricter multipart range test We need to ensure we generate compatibile output in the face of future changes * test/webrick/test_filehandler.rb (test_make_partial_content): check response body webrick: quiet warning for multi-part ranges Content-Length is ignored by WEBrick::HTTPResponse even if we calculate it, so instead we chunk responses to HTTP/1.1 clients and terminate HTTP/1.0 connections. * lib/webrick/httpservlet/filehandler.rb (make_partial_content): quiet warning webrick/httpresponse: make ChunkedWrapper copy_stream-compatible The .write method needs to return the number of bytes written to avoid confusing IO.copy_stream. * lib/webrick/httpresponse.rb (ChunkedWrapper#write): return bytes written (ChunkedWrapper#<<): return self webrick: use IO.copy_stream for multipart response Use the new Proc response body feature to generate a multipart range response dynamically. We use a flat array to minimize object overhead as much as possible; as many ranges may fit into an HTTP request header. * lib/webrick/httpservlet/filehandler.rb (multipart_body): new method (make_partial_content): use multipart_body get rid of test error/failure on Windows introduced at r62955 * lib/webrick/httpresponse.rb (send_body_io): use seek if NotImplementedError is raised in IO.copy_stream with offset. * lib/webrick/httpservlet/filehandler.rb (multipart_body): ditto. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_4@63012 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-03-28merge revision(s) 62960,62961,62962,62963,62964,62965:nagachika
webrick/httprequest: limit request headers size We use the same 112 KB limit started (AFAIK) by Mongrel, Thin, and Puma to prevent malicious users from using up all the memory with a single request. This also limits the damage done by excessive ranges in multipart Range: requests. Due to the way we rely on IO#gets and the desire to keep the code simple, the actual maximum header may be 4093 bytes larger than 112 KB, but we're splitting hairs at that point. * lib/webrick/httprequest.rb: define MAX_HEADER_LENGTH (read_header): raise when headers exceed max length webrick/httpservlet/cgihandler: reduce memory use WEBrick::HTTPRequest#body can be passed a block to process the body in chunks. Use this feature to avoid building a giant string in memory. * lib/webrick/httpservlet/cgihandler.rb (do_GET): avoid reading entire request body into memory (do_POST is aliased to do_GET, so it handles bodies) webrick/httprequest: raise correct exception "BadRequest" alone does not resolve correctly, it is in the HTTPStatus namespace. * lib/webrick/httprequest.rb (read_chunked): use correct exception * test/webrick/test_httpserver.rb (test_eof_in_chunk): new test webrick/httprequest: use InputBufferSize for chunked requests While WEBrick::HTTPRequest#body provides a Proc interface for streaming large request bodies, clients must not force the server to use an excessively large chunk size. * lib/webrick/httprequest.rb (read_chunk_size): limit each read and block.call to :InputBufferSize in config. * test/webrick/test_httpserver.rb (test_big_chunks): new test webrick: add test for Digest auth-int No changes to the actual code, this is a new test for a feature for which no tests existed. I don't understand the Digest authentication code well at all, but this is necessary for the subsequent change. * test/webrick/test_httpauth.rb (test_digest_auth_int): new test (credentials_for_request): support bodies with POST webrick/httpauth/digestauth: stream req.body WARNING! WARNING! WARNING! LIKELY BROKEN CHANGE Pass a proc to WEBrick::HTTPRequest#body to avoid reading a potentially large request body into memory during authentication. WARNING! this will break apps completely which want to do something with the body besides calculating the MD5 digest of it. Also, keep in mind that probably nobody uses "auth-int". Servers such as Apache, lighttpd, nginx don't seem to support it; nor does curl when using POST/PUT bodies; and we didn't have tests for it until now... * lib/webrick/httpauth/digestauth.rb (_authenticate): stream req.body git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_4@63004 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-03-28merge revision(s) 62968:nagachika
webrick: prevent response splitting and header injection Original patch by tenderlove (with minor style adjustments). * lib/webrick/httpresponse.rb (send_header): call check_header (check_header): raise on embedded CRLF in header value * test/webrick/test_httpresponse.rb (test_prevent_response_splitting_headers): new test * (test_prevent_response_splitting_cookie_headers): ditto git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_4@63002 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2017-12-14merge revision(s) 60123,60172,60189,60208,60210,60211: [Backport #14005]nagachika
webrick: avoid unnecessary IO#sync= call Sockets and pipes are always created with FMODE_SYNC flag already set (otherwise many things would be broken). * lib/webrick/server.rb (accept_client): remove unnecessary IO#sync= call webrick: do not hang acceptor on slow TLS connections OpenSSL::SSL::SSLSocket#accept may block indefinitely on clients which negotiate the TCP connection, but fail (or are slow) to negotiate the subsequent TLS handshake. This prevents the multi-threaded WEBrick server from accepting other connections. Since the TLS handshake (via OpenSSL::SSL::SSLSocket#accept) consists of normal read/write traffic over TCP, handle it in the per-client thread, instead. Furthermore, using non-blocking accept() is useful for non-TLS sockets anyways because spurious wakeups are possible from select(2). * lib/webrick/server.rb (accept_client): use TCPServer#accept_nonblock and remove OpenSSL::SSL::SSLSocket#accept call * lib/webrick/server.rb (start_thread): call OpenSSL::SSL::SSLSocket#accept * test/webrick/test_ssl_server.rb (test_slow_connect): new test [ruby-core:83221] [Bug #14005] webrick: fix up r60172 By making the socket non-blocking in r60172, TLS/SSL negotiation via the SSL_accept function must handle non-blocking sockets properly and retry on SSL_ERROR_WANT_READ/SSL_ERROR_WANT_WRITE. OpenSSL::SSL::SSLSocket#accept cannot do that properly with a non-blocking socket, so it must use non-blocking logic of OpenSSL::SSL::SSLSocket#accept_nonblock. Thanks to MSP-Greg (Greg L) for finding this. * lib/webrick/server.rb (start_thread): use SSL_accept properly with non-blocking socket. [Bug #14013] [Bug #14005] webrick: fix up r60172 and revert r60189 Thanks to MSP-Greg (Greg L) for helping with this. * lib/webrick/server.rb (start_thread): ignore ECONNRESET, ECONNABORTED, EPROTO, and EINVAL on TLS negotiation errors the same way they were ignored before r60172 in the accept_client method of the main acceptor thread. [Bug #14013] [Bug #14005] webrick: fix up r60172 and r60208 Thanks to MSP-Greg (Greg L) for helping with this. * lib/webrick/server.rb (start_thread): fix non-local return introduced in r60208 webrick: fix up r60172 and r60210 Thanks to MSP-Greg (Greg L) for helping with this. * lib/webrick/server.rb (start_thread): properly fix non-local return introduced in r60208 and r60210 git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_4@61239 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2017-12-14merge revision(s) 61197: [Backport #14184]nagachika
webrick: compile RE correctly for beginning and end match Using ^ and $ in regexps means we can accidentally get fooled by "%0a" in HTTP request paths being decoded to newline characters. Use \A and \z to match beginning and end-of-string respectively, instead. Thanks to mame and hsbt for reporting. * lib/webrick/httpserver.rb (MountTable#compile): use \A and \z instead of ^ and $ * lib/webrick/httpserver.rb (MountTable#normalize): use \z instead of $ * test/webrick/test_httpserver.rb (test_cntrl_in_path): new test git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_4@61238 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2017-09-14merge revision(s) 59897:nagachika
lib/webrick/log.rb: sanitize any type of logs It had failed to sanitize some type of exception messages. Reported and patched by Yusuke Endoh (mame) at https://hackerone.com/reports/223363 git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_4@59898 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-12-07Delay Utils.getservername until needed.shugo
There is no need to call Utils.getservername when the :ServerName option is specified, so delay Utils.getservername until needed to avoid unnecessary DNS lookups. [ruby-core:78492] [Bug #13007] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57014 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-11-29webrick: don't use OpenSSL::TestUtils from webrick testsrhe
Follow net/http and open-uri. Don't rely on the constants/methods from OpenSSL::TestUtils. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56936 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-09-27* lib/cgi/cookie.rb (parse): don't allow , as a separator. [Bug #12791]naruse
* lib/webrick/cookie.rb (parse): ditto. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56262 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-08-23test_ssl_server.rb: fix FD leaknobu
* test/webrick/test_ssl_server.rb (assert_self_signed_cert): close underlying TCP socket to fix FD leak. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55992 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-07-22webrick: filter out HTTP_PROXY for CGIHandlernormal
* lib/webrick/httpservlet/cgihandler.rb (do_GET): delete HTTP_PROXY * test/webrick/test_cgi.rb (test_cgi_env): new test * test/webrick/webrick.cgi (do_GET): new endpoint to dump env [ruby-core:76511] [Bug #12610] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55731 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-06-21Multiple values X-Forwarded-Proto in webricknobu
* lib/webrick/httprequest.rb (setup_forwarded_info): Use the first value in X-Forwarded-Proto, if header contains multiple comma separated values. Some middlewares may add these values to the list, not replacing. [Fix GH-1386] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55484 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-05-09webrick/utils.rb: suppress messagesnobu
* test/webrick/utils.rb (TestWEBrick#start_server): suppress progress messages from WEBrick::Utils#create_self_signed_cert. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54958 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-05-09test_ssl_server.rb: assert_self_signed_certnobu
* test/webrick/test_ssl_server.rb (assert_self_signed_cert): extract common assertion. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54957 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-05-07* lib/webrick/ssl.rb: Accept string value for SSLCertName. It is usedhsbt
to invoke ssl server with command line. [fix GH-1329] Patch by @kerlin * test/webrick/test_ssl_server.rb: Added test for GH-1329 git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54941 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-05-07* test/webrick/test_ssl_server.rb: Added basic test for `webrick/ssl`hsbt
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54939 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-03-29* lib/webrick/httpresponse.rb: Move error_body to method. It allow tohsbt
override the body more easily. [fix GH-1307] * test/webrick/test_httpresponse.rb: ditto. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54346 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-01-05leakchecker.rb: remove temporary measurenobu
* lib/webrick/utils.rb (WEBrick::Utils::TimeoutHandler#watcher): make watcher thread restartable. * lib/webrick/utils.rb (WEBrick::Utils::TimeoutHandler#terminate): new method to terminate watcher thread. * test/lib/leakchecker.rb (LeakChecker#find_threads): revert r46941. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53439 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-12-24fix common misspelling [ci skip]nobu
* compile.c, cont.c, doc, man: fix common misspelling. [ruby-core:72466] [Bug #11870] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53299 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-12-16Add frozen_string_literal: false for all filesnaruse
When you change this to true, you may need to add more tests. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53141 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-12-06* test/webrick/test_cgi.rb (TestWEBrickCGI#test_cgi): gave up the testusa
of binary path info test on Windows because the test had passed occasionally as the comment said. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52905 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-07-22* test/webrick/test_utils.rb (TestWEBrickUtils#test_nested_timeout_outer): seemsusa
to be too short for mswin CI. fixed occasional failure introduced at r51235. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51338 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-07-14test_filehandler.rb: fix UNC path failurenobu
* test/webrick/test_filehandler.rb (test_short_filename): pass document root path to cmd.exe instead of chdir there, as cmd.exe does not start on UNC path. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51238 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-07-14webrick/test_utils.rb: no timeout during assertionnobu
* test/webrick/test_utils.rb (assert_expired): separate negated assertion and block timeout excecptions. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51237 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-07-14webrick/utils.rb: wakeup immediatelynobu
* lib/webrick/utils.rb (WEBrick::Utils::TimeoutHandler#register): notify the handler thread of new timeout registration. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51235 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-07-14test_utils.rb: splitnobu
* test/webrick/test_utils.rb (TestWEBrickUtils#do_tet_timeout): split into tests. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51232 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-07-14webrick/server.rb: stop immediatelynobu
* lib/webrick/server.rb (WEBrick::GenericServer#start): flush shutdown pipe. * lib/webrick/server.rb (WEBrick::GenericServer#stop): request the server to stop immediately by sending data via shutdown pipe. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51231 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-07-13use Timeout.timeoutnobu
* time: Object#timeout has been deprecated a long time ago, use Timeout.timeout. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51225 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-06-02use assert_raisenobu
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50727 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-03-16* lib/webrick/server.rb: Fix regression bug in WEBrick'shsbt
:DoNotReverseLookup config option implementation. [fix GH-731] Patch by @vais * test/webrick/test_do_not_reverse_lookup.rb: ditto. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49980 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-03-10* lib/webrick/server.rb: Invoke setup_shutdown_pipe in start methodakr
instead of listen method. [ruby-core:68476] [Bug #10956] Reported by Shintaro Kojima. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49917 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-03-06* test/webrick/test_filehandler.rb: on vboxsf (on VirtualBoxko1
on Windows 7), file name and permissions are strange (can access by short file name and so on). Simply skip on such tests on such FS. To detect strange FS, this patch use a part of code `File.executable?(__FILE__)`. Please correct them if there are better ways. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49871 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-01-11test_utils.rb: dynamically chosen port numbernobu
* test/webrick/test_utils.rb (test_create_listeners): use dynamically chosen port number, not hardcoded port number. [ruby-core:67508] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49211 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-01-02* lib/webrick/utils.rb: removed unused argument variable.hsbt
[fix GH-356] Patch by @vipulnsward * lib/webrick/server.rb: ditto. * lib/webrick/ssl.rb: ditto. * test/webrick/test_utils.rb: added test for WEBrick::Utils#create_listeners. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49101 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2014-12-13skip old OpenSSLnobu
* test/open-uri/test_ssl.rb, test/webrick/test_httpproxy.rb: also depends on test/openssl/utils.rb. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48825 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2014-11-13* test/lib/envutil.rb: Moved from test/ruby/.akr
* test/lib/find_executable.rb: Ditto. * test/lib/memory_status.rb: Ditto. * test/lib/test/unit.rb: require envutil. * test/: Don't require envutil in test files. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48409 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2014-11-10* lib/webrick/server.rb: Setup shutdown pipe in listen method.akr
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48362 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2014-11-09* lib/webrick/server.rb (initialize): Initialize shutdown pipe hereakr
to avoid race condition. (cleanup_shutdown_pipe): New private method. (cleanup_listener): Extracted from shutdown method. Call this method from start method to avoid race condition. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48353 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2014-11-09* test/webrick/webrick.cgi: Don't use debug mode.akr
* test/webrick/webrick_long_filename.cgi: Ditto. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48351 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2014-11-09* test/open-uri: Test server log in server thread.akr
* test/webrick: Ditto. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48347 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2014-11-09* test/webrick: Fix the argument order of assert_equal.akr
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48342 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2014-11-09* test/webrick: Store log in an array.akr
* test/net/http: Ditto. * test/open-uri: Ditto. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48341 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2014-11-09Fix previous change.akr
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48327 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2014-11-09* test/webrick: Refine log tests.akr
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48326 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2014-11-08* test/webrick: Examine log and use assert_join_threads.akr
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48318 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2014-05-30Close FDs.akr
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46260 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2014-05-30* lib/webrick/server.rb: Use a pipe to detect server shutdown.akr
shutdown() or close() for listening socket is not a reliable. Actually, both doesn't work (doesn't wake up select()) on DragonFly BSD 3.6.2. * test/webrick/utils.rb: :ShutdownSocketWithoutClose is not required now to immediate server shutdown detection. This fixes fd leaks. * test/net/http/utils.rb: Ditto. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46253 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2014-05-08webrick/httpserver.rb: Stop handling requests on shutdownnobu
* lib/webrick/httpserver.rb (WEBrick::HTTPServer#run): stop handling requests on shutdown, even if the socket is readable and IO.select() returns true. [Fixes GH-607] * lib/webrick/server.rb (WEBrick::GenericServer#start): IO.select() raises ENOTSOCK on shutdown on Windows. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45872 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2014-03-11* test: get rid of warnings.usa
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45313 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2014-02-18* test/socket/test_addrinfo.rb: remove unused variables.hsbt
* test/socket/test_nonblock.rb: ditto. * test/socket/test_socket.rb: ditto. * test/socket/test_unix.rb: ditto. * test/testunit/test_parallel.rb: ditto. * test/webrick/test_filehandler.rb: ditto. * test/xmlrpc/test_features.rb: ditto. * test/zlib/test_zlib.rb: ditto. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45034 b2dd03c8-39d4-4d8f-98ff-823fe69b080e