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Released GNU libmicrohttpd 0.9.74
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‎ChangeLog‎

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Web 19 Dec 2021 18:30:00 MSK
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Releasing GNU libmicrohttpd 0.9.74 -EG
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December 2021
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Fixed doxy for MHD_suspend_connection().
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Some code improvements for new test test_client_put_stop.

‎NEWS‎

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Web 19 Dec 2021 18:30:00 MSK
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Released GNU libmicrohttpd 0.9.74
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This release brings a lot of fixes and improvements, and
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important new features.
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The most significant addition is the new experimental
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implementation of WebSockets contributed by David Gausmann. This
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implementation is not fully tested yet so currently it is disabled
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by default.
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Other changes include a lot of improvements and clarifications
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in doxy comments in microhttpd.h header file, improved compliance
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with the RFC HTTP specifications, the new implementation of reply
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header forming, the new implementation of request chunked encoding
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parsing, new automatic error replies, internal optimisations, and
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many important fixes, including fixes for long-standing bugs.
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More detailed list of notable changes:
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API changes:
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+ Added new function MHD_get_reason_phrase_len_for().
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+ Added MHD_CONNECTION_INFO_HTTP_STATUS type of information
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queried by MHD_get_connection_info().
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+ Added new response flag MHD_RF_SEND_KEEP_ALIVE_HEADER to force
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sending of "keep-alive" header even if not required by RFC.
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+ Added new response creation function
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MHD_create_response_from_buffer_with_free_callback_cls() with
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custom cleanup callback.
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+ Added new response flag MHD_RF_HTTP_1_0_COMPATIBLE_STRICT with
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the same functionality as existing MHD_RF_HTTP_VERSION_1_0_ONLY
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flag. The old flag will be deprecated.
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+ Added new response flag MHD_RF_HTTP_1_0_SERVER with the same
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functionality as existing MHD_RF_HTTP_VERSION_1_0_RESPONSE flag.
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The old flag will be deprecated.
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New features:
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+ Added experimental WebSockets extension with separate header.
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Disabled by default as it is not fully tested yet.
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+ Added '--enable-sanitizers[=address,undefined,leak,user-poison]'
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configure parameter (instead of '--enable-sanitizer'),
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implemented custom memory poisoning for memory pools.
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Improvements and enhancements:
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* Doxy function descriptions was corrected, clarified, extended,
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and improved. Now it should be much easier to learn MHD just by
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reading the headers.
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* Completely rewritten reply header forming. New implementation is
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more robust, simpler maintainable and expandable, and better
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follows RFC HTTP specifications.
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* Performance improvements: now HTTP version and request method are
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decoded one time only (previously MHD used string comparison many
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times during processing the data).
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* Rewritten request chunked payload decoding. The new
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implementation better conforms to the HTTP RFC, detects format
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problems earlier, replies to the clients with description of
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detected problems, handles untypical (but syntactically correct)
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values properly.
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* Added special replies for wrong/unsupported HTTP versions in
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requests, broken HTTP chunked encoding in requests,
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* As required by HTTP RFC, added automatic error replies if client
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used broken chunked encoding, too large chunk size, too large
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payload size, or broken Content-Length header.
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* Optimized connection's memory pool handling.
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* Changed timeout precision from one second to one millisecond.
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* Added some checks for incorrect user data, reporting problems in
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MHD log.
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* Improved performance of hash calculations functions by using
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compiler built-ins (if available).
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* Implemented SHA-1 calculations (required for WebSockets).
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* Added universal MSVC project that works with any (sufficiently
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new) version of MSVC.
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* Developed simple HTTP client to test MHD under very special
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conditions.
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* Implemented 45 new tests.
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* Improved existing tests to test more aspects of MHD.
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* Added check for correct results of system and libcurl functions.
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* Response headers are checked during forming of responses.
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* HTTPS tests were improved.
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* Added rebuild on W32 of all required files if files are missing.
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* Many internal optimisations and improvements.
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Functionality changes:
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* Keep-alive header is omitted by default for HTTP/1.1 connections.
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Use of header can be enforced by response flag.
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* Chunked encoding is used for HTTP/1.1 non-keep-alive connections
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for responses with unknown size. Previously MHD used "indication
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of the end of the response by closing connection" in such cases,
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however it is not correct for HTTP/1.1 connections as per HTTP
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RFC.
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* As required by HTTP RFC, use HTTP/1.1 version instead of HTTP/1.0
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in reply headers when client is HTTP/1.0 . HTTP/1.0 version can
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be enforced by response flag.
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* User response headers are used in replies in the same order as
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was added by application.
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* Allowed tab characters in response header values.
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* All custom "Connection:" response headers are automatically
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combined into single "Connection:" header.
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* "keep-alive" token silently dropped from custom "Connection:"
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response header. "Keep-alive" cannot be enforced and used
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automatically if possible.
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* Allow tab character in custom response header value.
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* Disallow space character in custom response header value.
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* Do not allow responses with 1xx codes for HTTP/1.0 requests.
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* Detected and reported incorrect "Upgrade" responses.
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* W32 targets are changed to Vista+ by default. XP is supported
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still.
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Fixes:
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# Fixed short busy-waiting (up to one second) when connection is
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going to be expired and closed.
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# Fixed handling of errors during start of new connection, fixed
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inability to accept new connections in thread-per-connection mode
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due to the missing decrement of number of daemon's connections if
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start of new thread is failed.
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# Fixed incorrect parsing of LFLF, LFCR, CRCR, and bare CR as
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single linefeed in request header and request chunked payload.
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Now only CRLF or bare LF are recognized as linefeed.
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# Fixed response chunked encoding handling. Now it works properly
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with non-keep-alive connection, with fixed size replies (if
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chunked was enforced by header), and in other situations.
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# Other fixes for chunked replies.
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# Fixed handling of custom connection timeout in thread-per-
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connection mode.
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# Fixed wrongly used MHD_REQUEST_TERMINATED_COMPLETED_OK code for
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application notification when MHD_REQUEST_TERMINATED_WITH_ERROR
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code must be used.
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# Fixed code MHD_REQUEST_TERMINATED_READ_ERROR not reported (code
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MHD_REQUEST_TERMINATED_WITH_ERROR was incorrectly used instead).
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# Fixed handling of request chunked encoding with untypical
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formatting.
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# Fixed processing of last part of hex-encoded values under
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certain conditions.
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# Fixed value returned for MHD_CONNECTION_INFO_REQUEST_HEADER_SIZE.
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# Fixed returned value for MHD_FEATURE_AUTOSUPPRESS_SIGPIPE on W32,
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now it is MHD_YES as W32 does not need SIGPIPE suppression.
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# Fixed portability of bitwise NOT for enums values.
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# Fixed SHA-256 and MD5 calculations with unaligned data.
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# Fixed incorrect caseless matching for HTTP version.
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# Fixed incorrect caseless matching for request method.
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# Fixed compatibility with old GnuTLS versions.
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# Fixed compiler warnings on 32-bits platforms.
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# Fixed blocking sockets setting in tests and examples for W32.
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# Fixed examples to really use libmagic if present.
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# HTTPS tests were fixed.
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# Fixed libcurl test with case-insensitive match for HTTP methods,
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method names must use case-sensitive match.
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# Fixed tests compatibility with old libcurl versions.
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# Fixed build on W32 with llvm-dlltool (this tool is too
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oversimplified)
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-- Evgeny Grin (Karlson2k)
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Sun 25 Apr 2021 14:00:00 MSK
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Released GNU libmicrohttpd 0.9.73
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‎configure.ac‎

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#
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AC_PREREQ([2.64])
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LT_PREREQ([2.4.0])
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AC_INIT([GNU Libmicrohttpd],[0.9.73],[libmicrohttpd@gnu.org])
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AC_INIT([GNU Libmicrohttpd],[0.9.74],[libmicrohttpd@gnu.org])
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AC_CONFIG_AUX_DIR([build-aux])
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AM_INIT_AUTOMAKE([silent-rules] [subdir-objects])
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AC_CONFIG_HEADERS([MHD_config.h])
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AC_CONFIG_MACRO_DIR([m4])
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LIB_VERSION_CURRENT=70
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LIB_VERSION_CURRENT=71
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LIB_VERSION_REVISION=0
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LIB_VERSION_AGE=58
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LIB_VERSION_AGE=59
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AC_SUBST(LIB_VERSION_CURRENT)
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AC_SUBST(LIB_VERSION_REVISION)
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AC_SUBST(LIB_VERSION_AGE)

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