3 Fix multi: hideunavailable don't hide target that timeout MP-615
7 Fix race condition in MP log output MP-522
9 Fix 'Group' is duplicated twice in RPM spec
11 Fix crash in log filter when record syntax is omitted MP-613
13 Change target z3950.loc.gov:7090/voyager -> lx2.loc.gov:210/LCDB_MARC8
16 Fix Control-C does not stop Metaproxy spawned by shell MP-610
17 Check for fork mode instead (-D) - rather than debug (-X)
21 sru_z3950: allow CCL in SRU search MP-606
22 Makes the sru_z3950 filter convert to CCL queries if query type
23 "ccl" is used, eg ?query=water&queryType=ccl&... for SRU 2.0.
27 Fix dead lock in session_shared (init) MP-605
31 Fix session_shared caches set with diagnostic MP-604
33 Fix assertion failed in session_shared filter MP-603
35 Make /usr/share/metaproxy be part of metaproxy RPM MP-601
37 Log YAZ version upon start MP-599
41 sru_z3950: undo Serialize identical SRU GET requests MP-598
42 Now much more elegantly handled by session_shared.
44 session_shared: anticipated init and search MP-597
46 z3950_client: separate init timeout MP-596
47 Both init-timeout and connect-timeout are configurable by this change.
48 Default is 10 seconds.
52 zoom: support cf_-params MP-595
54 http_client: returns 404 if no destination URI is given
58 zoom: allow / in user and password db args MP-592
62 Log rotate no longer reloads configuration - instead Metaproxy just
63 re-opens log files when SIGHUP is received. MP-485
65 Debian : init.d metaproxy reload should check configuration MP-591
67 Fix Metaproxy stops logging after check config failed MP-590
71 Fix double free in log filter (with incorrect config) MP-589
73 zoom: Add allow_ip feature - fixes MP-588
74 Allow a list of IPs to be given separated by blanks
75 <allow auth_url="http://mkc-admin.indexdata.com/..."
76 allow_ip="127.0.0.1 ::1" .. >
78 cql2pqf.txt: Maps dc.subject to Bib-1 21 rather than 47
80 zoom: fix CS write-check
84 zoom: handle contentAuthentication MP-587
88 Destroy router and filters in parent process MP-584
90 Update NMAKE makefile to use Visual Studio 2013 along with Boost 1.57,
91 ICU 54.1, Libxml2 2.9.2, Libxslt 1.1.28.
95 Use YAZ backtrace facility MP-582
97 Fix libmetaproxy-dev depends on libgnutls-dev - MP-580
98 libgnutls-dev is unavailable on jessie.
100 Update template filter to avoid Pimpl MP-579
102 cgi: POSTed content - part of MP-562
104 Fix filter cgi does not relay session close MP-577
108 Add support for binding outgoing IP for http_client and z3950_client
109 This is enabled by bind_host setting. MP-575
113 z3950_client: allows negotiation charset to be set MP-574
115 cgi: more functional but no support for POSTed content yet (part of MP-564)
117 --- 1.5.11 2014/10/20
119 http_file: add include of sys/stat.h fixes MP-576
121 Fix documentation about SRU client support MP-572
123 Initialize Libxml2 - for threaded operation MP-571
125 --- 1.5.10 2014/08/26
127 On SIGTERM shut down connection+listening sockets MP-568
128 This fixes a problem with 'metaproxy stop' sometimes taking a long time.
132 zoom: make retry on failure configurable MP-565
133 The default and existing behavior is that backend failures (any
134 diagnostic) makes the module re-search once. The behavior may
135 be changed by db parameter 'retry'. If given value '0' disables
136 retry and '1' enables it. If not given, the Torus record may
137 specify with element retryOnFailure (value '0'/'1').
141 Fix race condition in SIGTERM handling. Could terminate whole metaproxy
142 instead of just a child process. Extremely rare in real life, hit me with
143 CF stress testing. MP-559.
147 http_file: passthru option MP-557
148 New facility for http_file to passthru - even if an area is matched. The
149 default behavior (passthru=false) is to return 404: Not found. With
150 passthru=false, next filter is consulted.
154 Fix ref to freed memory in log filter 1line - MP-556
156 echoedSearchRetrieveRequest support MP-555
160 zoom: allow hostname to be given for ipauth MP-552
161 The Torus setting for that is called auth_hostname.
165 zoom: IP auth use field "ipRanges" rather than "ip" MP-551
169 session_shared: close in ~BackendInstance MP-549
170 This fixes a serious issue where some MP would leak sockets.
172 session_shared: mutex lock in BackendClass::release_backend MP-550
173 Fixes a SEGV that could occur (in rare cases).
177 zoom: Do not include ZOOM C's fake surrogate diag recs MP-547
179 zoom: fix invalid present response in some cases MP-546
181 zoom: Relay Torus HTTP error message
185 Check for proper limits before using RecordCache functions MP-544
189 Build packages for Ubuntu Trusty Tahr 14.04 LTS
191 sort: crash / invalid_read in filter sort MP-541
193 sru_z3950: facet should be stored in additionalSearchInfo MP-533
195 doc: fix missing man pages MP-542
197 cql_rpn: fix threading problem with CQL to RPN conversion MP-497
199 cql_rpn: allow conversion from RPN to CQL (reverse) MP-537
203 sru_z3950: fix facet response (memory corruption) MP-532
205 log: fix crash idPass user is omitted MP-530
209 query_rewrite: pass-thru non Type-1 queries MP-527
211 metaproxy stop (SIGTERM) kills all child processes spanwed by
212 filter (if any) before invoking filter destructors. MP-525
216 http_file: only supports HTTP GET MP-523
218 session_shared: shut down expire thread in destructor
219 This ensures that expire thread is not running after destruction
220 and does bad memory references, etc.
222 frontend_net: fix segfault on startup MP-524
223 Would happen if MP was listening on multiple ports and one
224 of the ports was already in use (and MP would exit).
226 frontend_net: fix memory leak MP-521
227 This leak would occur if all sessions were in use and the input
228 queue was cleared when a client would close connection (socket).
230 frontend_net: fix compilation on Windows (SIGUSR1 does not exist)
234 http_rewrite: use local skiplist; fixes memory corruption. MP-520
236 http_client: x-forwarded-for controls X-Forwarded-For presence
237 If x-forwarded-for setting (boolean) is enabled, http_client will
238 generate an X-Forwarded-For header entry which includes existing
239 X-Forwarded-For (if any) and current peer address (immediate client
240 of Metaproxy). By default x-forwarded-for disabled and X-Forwarded-For
241 will not be generated.
243 z3950_client: client_ip controls client-IP presence
244 If client_ip setting (boolean) is enabled, z3950_client will
245 generate a client_ip OID as part of init request which includes
246 previous client_ip (if any) and current peer address (immediate
247 client of Metaproxy). By default client_ip is disabled and client_ip
248 will not be generated.
250 HTTP X-Forwarded-For/Z39.50 Client-IP support
251 virt_db, multi: relays Z39.50 client-IP.
252 sru_z3950: converts X-Forwarded-For header to Z39.50 client-IP.
253 zoom: uses Client-IP or origin address (prefer Client-IP).
254 frontend_net: Strips tcp: from peer address (so that it is no longer
255 printed and stripped in zoom filter).
256 z3950_client: builds client-IP list - combining immediate peer address
257 as returned by COMSTACK and existing client-IP list (if avaiable).
258 The Origin only printes first X-Forwarded address.
262 Log when SIG{TERM,USR1} is received ASAP MP-513
263 Do it in frontend_net event loop rather than in place for metaproxy
264 main, which only exits when all sessions are terminated for SIGUSR1
267 metaproxy-config: quote some RHS values (that might include blanks)
269 Fix leak in sru_z3950 filter - when explain is returned MP-511
271 Allow stylesheet to be given for sru_z3950 filter MP-510
272 This is based on a patch by Sven Porst and the functionality
273 of the YAZ Generic Frontend Server.
275 Allow base attribute in configuration file tags - the attributes are
276 inserted by XInclude usage as mentioned on
277 yazlist: http://lists.indexdata.dk/pipermail/yazlist/2012-Au
278 and noted in a gist: https://gist.github.com/3551094
280 Package metaproxy provides virtual package metaproxy6 MP-508
281 This allows module packages to depend on a metaproxy server
284 Filter destructors called upon daemon termination MP-505
285 When metaproxy daemon receives SIGTERM the stop method of each filter
286 is called. The stop method existed before, but did not take any
287 arguements (void).. The frontend_net filter can now distinguish
288 between SIGUSR1 (stop bind, but keep sessions running) and SIGTERM
289 (stop immediately). Note that this changes the API+ABI of Metaproxy
292 zoom: sync up with Pazpar2 WRT authentication handling MP-492
294 Router: use shared_ptr rather than naked one - to avoid leak if an
295 exception is thrown in configure.
299 zoom: Add nocproxy=1 for contentConnector sessions MP-501
301 Doc: mention proper versions; fix link to Boost win binaries.
303 Windows: update for Boost 1.55
305 Windows: avoid warning when using boost::split. Done by defining
306 _SCL_SECURE_NO_WARNINGS for Visual Studio.
308 Fix LSB conformance for /etc/init.d/metaproxy MP-500
309 Debian: add support for /etc/init.d/metaproxy status
311 sort: Add const to Record less than operator in order to compile on
316 session_shared: fix element-set handling in record caching. MP-499
318 document http_rewrite. MP-468
320 http_write: Honor X-Metaproxy-SkipLink MP-479 . Filter understands and
321 respects the header (which will normally come from the cproxy filter)
325 RPM: fix dependency for libmetaproxy5-devel MP-496. The libmetaproxy5-devel
326 RPM was unsable in version 1.4.0.
328 Remove log message about "backend classes". Appeared in version 1.4.0.
332 Build RPM/Deb packages with YAZ 5 and yazpp 1.5. Metaproxy still compiles
333 with older version from source, but packages now use YAZ 5 that supports
336 sru_z3950: Fix SEGV for decoding invalid SRU requests
337 Incorrect reference to union (was explain response rather than
340 session_shared: match additionalSearchInfo (includes facets). In
341 layman's terms means that means that facets are properly handled
342 by this filter. Eg a change in requested facets will issue new
343 search and facets from exisiting result set are cached.
345 --- 1.3.62 2013/09/11
347 http_rewrite: better handling of <script> content in HTML parser. MP-486
349 http_rewrite: fix threading issue with regex. MP-482
351 bounce: don't use strdup for fixed length content. Error occurred in echo
354 session_shared: expire backend class when no instances left. This
355 means memory clean up, but not really a leak fix.
357 virt_db: fix leak for naked ptr.
359 cql_rpn: use config relative path for cql2rpn file. MP-481
361 Updates for upcoming YAZ 5.
363 --- 1.3.61 2013/08/29
365 New configuration directories ports.d/routes.d for metaproxy
366 configuration. This allows 3rd party packages to install config
367 for ports and new routes. MP-477
369 --- 1.3.60 2013/08/21
371 Fix metaproxy-config --libs to return non-mt over mt libs.
372 The -mt versions do not exist as shared objects and cause
373 linker errors for applications linking with Metaproxy.
374 Problem present in versions 1.3.56 - 1.3.59. MP-475
376 HTML: clean up char checks. Add ptr to HTML parse spec
378 HTML parser stops eating tag when <-char is met MP-473
380 rewrite: do not even compare content types, if we don't have any
381 the regex_match caused a segfault if we had no content-type in the
384 rewrite: within header=... matches only the header value
385 Used to match the whole header line, but we need to use
386 ^$ anchoring for host-relative regexps, and they need to
387 anchor at the ends of the value. MP-470.
389 rewrite: Ruleset functional MP-469
391 --- 1.3.59 2013/07/12
393 session_shared: negotiate init sz parameters.
394 By default, session_shared will honor the paramters given by client.
395 An alternative, but not implemented, algorithm would be to only
396 re-use sessions with same sz parameters. This however, could reduce
397 re-use of sessions a lot. Hence this, simple algorithm instead. The
398 negotiation to a maximum sz values can be enabled by using
399 <init maximum-record-size="sz1" preferred-message-size="sz2"/>
400 in configuration. This will make session_shared send those values
401 to backends and use returned init values in negotaition to
402 client before session_shared.
404 session_shared: resolve result-set references.
405 The reference is substitued with the query for old set if database
406 match and query type is Type-1. If not the reference will issue a
409 sort filter: relays RecordComposition including elementSet in use for
412 http_client: better diagnostics
414 http_client: disables HTTP redirect handling by default.
415 It can be configured with max-redirects in configuration.
417 --- 1.3.58 2013/06/12
419 Fix loading of filters cql_rpn and sru_z3950 . Was broken by 1.3.57.
421 --- 1.3.57 2013/06/12
423 Make RouterChain and RouterXML part of public API (libmetaproxy).
425 http_client: honor X-Metaproxy-Proxy as an alternative to
426 the "proxy" configuration. Allows proxy to be set per HTTP request.
428 sru_z3950: For SRU requests recognize x-client prefixes as a way
429 to ingest "database parameters".. The suffix of x-client- serves
430 as database argument name. Multiple may be given. For example:
431 http://path/db/?operation=searchRetrieve&x-client-user=a&x-client-password=b
432 is turned into Z39.50 database
435 --- 1.3.56 2013/05/27
437 New filter present_chunk. This filter allows splitting of present requests into smaller chunks.
439 New filter sd_remove, which replaces surrogate diagnostics with
440 SUTRS records. This filter tries to deal with clients that breaks
441 when receiving surrogate diagnostics.
443 new filter http_client. Same role as z3950_client, but just for
444 HTTP. Allows Metaproxy to operate as a HTTP proxy.
446 New filter http_rewrite1, which serves as purpose on how to rewrite
447 HTTP content with Metaproxy.
449 Use libboost-system if available, because newer versions of libboost-threads
450 requires libboost-system.
452 Allow frontend_net to serve SSL/HTTPS, because we can specify a server
455 --- 1.3.55 2013/04/10
457 zoom: Torus setting: authenticationMode which may hold values "basic"
460 --- 1.3.54 2013/03/27
462 configure: check for Libxslt support in YAZ and rely on definitions
463 from yaz-config, rather than doing own xslt/xml2 checks.
465 Allow timestamp format for log lines to be given with option -m
466 for metaproxy. Similar to yaz-ztest/GFS option -m.
468 Document log category 'line' for log filter.
470 Solr configuration example in etc/config-solr.xml
472 multi: do not mess with request package. For scan and search,
473 database-names were modified and the request package was left with
474 dangling pointers that caused a log filter to fail (request package
475 inspected after multi was invoked).
477 Documentation: fix id of metaproxy-config ref .
479 Documentation: update for USEMARCON support.
481 --- 1.3.53 2013/01/31
483 record_transform: allow OPACXML to OPAC conversion
485 zoom: document content-proxy
487 zoom: document db parm content-{user,password}, torus_url. Also
488 <torus auth_url="..> which makes zoom operate in authenticated mode
491 --- 1.3.52 2012/11/30
493 zoom: fix http://-check. SRU search broken in 1.3.51.
495 --- 1.3.51 2012/11/15
497 zoom: only append http:// for SRU if not already given . Makes it
498 possible to use https-URLs.
500 Use yazpp 1.4 or later due to new ABI.
502 frontend_net: allow max package size to be specified. Controlled by
503 attribute 'max_recv_bytes' of element 'port'.
505 --- 1.3.50 2012/10/29
507 For most generated diagnostics by filters, typically temporary
508 system error, augment addinfo message with filter name.
510 Add support for CentOS 6 packages.
512 sru_z3950: interpret Z39.50 diagnostics part of Init Response.
514 Add man page for metaproxy-config.
516 --- 1.3.49 2012/10/18
518 zoom: new config element passthru. This defines an element set that is
519 passed verbatim to the backend in pz2 mode.
521 auth_simple: allow both idPass and open auth. Also fix SEGV that could
524 --- 1.3.48 2012/10/08
526 z3950_client: fix string handling for init diagnostics in the case where
529 query_rewrite: no charset conversion for error queries. Avoid performing
530 charset conversion for query conversion errors. The resulting Type-1
531 query is invalid in this case.
533 --- 1.3.47 2012/10/04
535 For graceful stop (SIGUSR1), metaproxy will kill children processes.
537 Log when metaproxy is invoked in test mode (-t).
539 Log PID for each log message.
541 multi: combine both NSDs and multiple NSDs into one (diagnostics).
543 z3950_client: fixup multiple NSD's too. Like surrogate diagnostics,
544 a (backend=target) is appended for each diagnostic so that can be
545 determined the origin of error.
547 multi: hideerrors also in use for present response.
549 Solr example in zoom man page.
551 Fix typo in query_rewrite config example.
553 Log at least first non surrogate diagnostic. Instead of
554 "Z_Records_multipleNSD"
556 multi: Fix check for opt Records in present response. A SEGV could occur
557 if a target did not return records and no diagnostics.
559 --- 1.3.46 2012/09/24
561 Yet another fix for graceful stop.
563 --- 1.3.45 2012/09/12
565 sru_z3950: relay surrogate diagnostics.
567 --- 1.3.44 2012/09/10
569 zoom: Honor extraArgs, strip # in zurl.
571 multi: fix SEGV for scan. Reported by Rustam T. Usmanov.
573 zoom: url_recipe allow %{var[reg]} substitutions.
574 It's like ${var[reg]} but does URI component encoding as well.
576 --- 1.3.43 2012/08/22
578 RPM/Deb: require yazpp 1.3.2, because it fixes a missing close of
579 non-keepalive HTTP sessions.
581 http_file: allow zero size files (bug fix)
583 Fix zoom schema: auth_url is optional
585 --- 1.3.42 2012/08/20
587 zoom: fix un-init memory (could result in SEGV at session close)
589 frontend_net: handle X-Forwarded-For. This is stored in package.origin()
590 and may be used in filters as usual.
592 zoom: authentication via Torus lookup
593 Enabled by new configuration setting: auth_url . If this is defined,
594 the zoom module will contact Torus for auth/IP lookup and that will
595 define realm to be used in session.
597 --- 1.3.41 2012/08/10
599 virt_db: Fix database name - first character we removed by mistake.
600 Bug introduced in 1.3.40.
602 --- 1.3.40 2012/08/06
604 virt_db: Don't use "unix path" as database for Unix sockets.
606 --- 1.3.39 2012/08/02
608 z3950_client: Don't tamper with / in zurl - fixes problems
609 using Unix sockets for backends.
611 session_shared: fix integer overflow problem with hit count.
613 session_shared: avoid long usage of cached queries.
615 zoom: New database argument , torus_url to set URL of Torus
616 record to be fetched.
618 --- 1.3.38 2012/07/04
620 Fixes for 'metaproxy reload' for RPM/Debian packages.
622 zoom: Allow rpn2cql conversion to be augmented with a properties file.
623 Element rpn2cql can be specified per-target for the zoom filter.
625 log: New category "line" which is a single-line log message with
626 most important parts of a HTTP/Z39.50 request/response.
628 --- 1.3.37 2012/06/01
630 frontend_net: add facility to report live statistics about response
631 times and current thread usage. The report is an XML document
632 and is triggered for a specific URL path. This is set by <stat-req>
633 in the configuration of frontend_net. By default this report is
634 disabled (same as empty value for <stat-req>).
636 Fix reload problem in init.d script for RPM/Debian.
637 The '/etc/init.d/metaproxy reload' in some cases would stop but not
638 start metaproxy - effectively stopping the service.
640 Don't display start log message when config testing (-t).
642 zoom: avoid CCL message limit of 1K in ZOOM filter.
644 --- 1.3.36 2012/05/10
646 metaproxy init script reacts to reload which does graceful stop +
647 start and is used by logrorate script.
649 --- 1.3.35 2012/05/09
651 Fixes for Windows compilation.
653 Metaproxy daemon reacts to SIGUSR1 in which case it will leave
654 existing sessions running but terminate the monitor process that is
655 used in keepalive mode.
657 Change start log message to 'metaproxy start'. Was 'Metaproxy start'
658 before. Consistent with 'metaproxy stop' message.
660 zoom: document zoom's proxy_timeout
662 z3950_client: fixup addinfo for init response
664 virt_db: return other diagnostic if init is rejected. Diagnostic 236:
665 "Access to specified database denied" is returned, but only if init
666 response from backend does not carry diagnostics already.
668 multi: relays user info for first rejected target. The other-information
669 field for init response for first rejected target is in common init
670 response. This ensures that some backend init diagnostics are returned to
673 --- 1.3.34 2012/04/25
675 frontend_log: extend logging (when message is given in config).
677 --- 1.3.33 2012/04/25
679 zoom: Fix check for proxy. Use diagnostic 1074 for proxy failures.
681 --- 1.3.32 2012/04/24
683 sru_z3950 filter passes through incoming Z39.50 requests again. Was
684 not handled by mistake in Metaproxy versions 1.3.29, 1.3.30 and 1.3.31.
686 --- 1.3.31 2012/04/24
688 zoom: fixes for retry/proxy failover logic. More logging.
690 --- 1.3.30 2012/04/23
692 zoom: return addinfo="proxy failure" for proxy failures. This also
693 changes the scheme for dealing with proxies a bit. zoom now always
694 do proxy check, even if there's no failover. Fortunately, that's not
697 zoom: Init rejected wo diagnostics maps to Bib-1:1014.
698 Bib-1 1014, "Init/AC: Authentication System error", seems pretty
699 generic. We don't know why the init would fail; IP, user, block IP, etc.
700 sru_z3950 filter maps this to SRU diagnostic 3: "Authentication error".
702 zoom: guess if invalid SRU response was an auth failure
704 session_shared: disable session retry by default . Can be enabled by
705 restart="true" in resultset section.
707 --- 1.3.29 2012/04/18
709 zoom: may read cf-proxy's config settings.
710 This reduces manual configuration of the content proxy server host.
711 The ZOOM module will use the old style session.proxyhost if "server"
712 is given (deprecated) and use the new style proxyhost/session if
713 "config_file" is in use.
715 frontend_net: remove incoming requests that can not be handled
716 Requests in queue for filter frontend_net are removed if client
717 closes connection for the session and request is not yet handled.
719 sru_z3950: serialize requests. This is to ensure that pipelined
720 HTTP requests are handled properly.
722 --- 1.3.28 2012/04/04
724 New class, wrbuf, that wraps YAZ' WRBUF.
726 --- 1.3.27 2012/03/30
728 Metaproxy daemon is now running as user "metaproxy". This user is
729 managed by package maintainer scripts. The user information is stored
730 in /etc/metaproxy/metaproxy.user .
732 --- 1.3.26 2012/03/20
734 New filter, sort, that allows sorting of XML records via Z39.50
737 Filter record_transform: USEMarcon support. For example:
738 <retrieval syntax="usmarc">
739 <backend syntax="unimarc" name="F">
740 <usemarcon stage1="/etc/usemarcon/uni2us/uni2us.ini"/>
744 Filter multi: empty route pattern uses route as default.
746 <target route="z3950.indexdata.com">z3950.indexdata.com</route>
747 may use the shorter notation
748 <target route="z3950.indexdata.com"/>
750 Filter query_rewrite: use config path to locate XSLT.
752 Filter frontend_net: log statistics.
753 If a custom message element in frontend_net configuration it makes
754 the frontend_net filter produce a log entry whenever an operation
755 is completed. The log is always written using yaz_log with the
756 custom message given, the package ID (session ID) , the time
757 the operation has been active (end-to-end) , the threads currently
758 active/total and the size of the request input/output queues.
760 query_rewrite: charset conversion of query terms.
761 This is an optional feature. Enabled by element <charset> in
762 configuration with attribute 'from' and 'to' that specifies
763 from/to encodings. The default 'from' encoding is UTF-8.
765 Filter record_transform: honor piggyback searches.
767 Filter zoom: re-connect when database is reused.
768 Re-connect is necessary if a connection is lost or a timeout occurs.
769 If not, we'll be seeing zero hits, when we shouldn't.
771 --- 1.3.25 2012/02/29
773 zoom: Change scheme for dealing with content proxy URLs. The module
774 now has its own common XSL transform that is enabled by record_xsl
775 attribute in the configuration. This XSL gets parameter cproxyhost
776 that holds the host for the content proxy session . The genearted-url
777 is created only if urlRecipe is enabled. In previous version default
778 value of urlRecipe was ${md-electronic-url}; it is now empty and
779 disabled by default. Also generated-url no longer includes the content
780 proxy host. Content proxying URLs is supposed to the handle in the record_xsl
783 zoom: new setting timeout that specifies timeout for outgoing Z39.50/SRU
784 connections. Default value is 40 (seconds).
786 zoom: tune CCL to Z39.50 diagnostics mapping. Throw Bib-1: 108
787 "Malformed query" for syntax errors and related ones; throw
788 Bib-1: 3 "Unsupported search" for everything else. Details from
789 the CCL parser is provided as additional-info.
791 multi: new setting hideerrors that makes multi only relay diagnostics
792 to a client if all backends fail.
794 --- 1.3.24 2012/02/23
796 zoom: empty ccl_map field-mappings disables CCL map.
798 zoom: fix Explain search that could return error if session was
801 --- 1.3.23 2012/02/10
803 zoom: returns Explain records for database IR-Explain---1. The
804 target profile records are converted to Explain records via XSLT.
806 session_shared: make error recovery configurable. Whether a search
807 is restarted on errors or not, is configurable by attribute "restart"
808 in element "resultset" in configuration.
810 session_shared: only relay init for first request. session_shared, for
811 each backend class, now only relays first init request (rather than all).
812 The module only needs to save init response info once. This avoids the
813 need to check for session max.
815 --- 1.3.22 2012/02/02
817 zoom: fix memory leaks.
819 session_shared: maximum number of sessons is configurable. Default
820 value is 100. Result-sets for backends without named result sets are
821 only re-used if databases is identical for a search. This is under the
822 assumption that performance may suffer for those backends when
823 changing the database for each search.
825 multi: combines diagnostics from all backends. All diagnostics from
826 backends are combined into multiple non-surrogate diagnostics; rather
827 than just one diagnostic from first backend.
829 --- 1.3.21 2011/12/27
831 zoom: relay realm to cproxy parameter file.
833 Configuration: Allow filter collection element inside route. This
834 makes it possible to include multiple filters at once.
836 zoom: nocproxy also disables urlRecipe.
838 --- 1.3.20 2011/12/21
840 zoom: return diagnostic if CQL sortby conv fails. Diagnostic Bib-1 214
841 "Illegal sort relation" is returned. Gets translated to SRU diagnostic
842 90: "Unsupported direction value".
844 zoom: honor database argument nocproxy. This disables creating a content
845 connector session (for non-CF targets, usually) and also relays nocproxy
846 as database argument to a CF target.
848 --- 1.3.19 2011/12/16
850 zoom: Multiple proxy hosts may be given for proxy rich database
851 parameter. List is comma separated.
853 http_file: decodes URI paths properly. Does not return 404: not found
854 if no prefix are matches. Instead packages are passed on.
856 --- 1.3.18 2011/12/08
858 zoom: content-{user,password,proxy} are passed on to content proxy
859 system and takes precedence over user,password,proxy .
861 sru_z3950: SRU extra argument x-log-enable=1 enables a search response
862 with a log element including log material from children filters. At
863 this point, only the zoom filter uses this log facility. It will
864 eventually be used by other filters as well. In particular it might be
865 useful for this feature to track all filters in used during a search.
867 zoom: for x-log-enable=1, APDUs sent by ZOOM C, records as received
868 and queries as they are manipulated are logged.
870 zoom: extend addinfo with native diagnostics. Diagnostics as received
871 by ZOOM C are put into addinfo - including ZOOM, HTTP, SRU and Bib-1
872 diagnostics. This indicates both a backend diagnostic and the original
875 zoom: default urlRecipe value is ${md-electronic-url}
877 zoom: target profile setting sruVersion is recognized.
879 --- 1.3.17 2011/11/17
881 zoom: log target profile record fetched (AKA Torus).
883 --- 1.3.16 2011/11/17
885 Change target profile parameter CfSubDb to CfSubDB.
887 --- 1.3.15 2011/11/12
889 zoom: bug fix: realm was relayed to CF targets by mistake (realm only
890 makes sense to the zoom module itself).
892 --- 1.3.14 2011/11/11
894 zoom: realm may be given as part of database.
896 --- 1.3.13 2011/10/26
898 Fix Origin class assigment method; was removd by mistake in 1.3.12.
900 --- 1.3.12 2011/10/26
902 zoom: database args x-name=value are passed through to backend database.
904 SRU filter: user may specify session ID that is passed to log entries
905 that follows. It is specified by using x-session-id in the SRU arguments.
907 zoom: fix null pointer reference which would occur for bad url parameter
908 inside "torus" or if url was not given.
910 --- 1.3.11 2011/09/09
911 Fix bug in filter session_shared where sessions would not expire
912 properly (session ttl). This in turn could make the target close the
913 connection before expected and session_shared would return diagnostic
914 2: system temporarily available.
916 --- 1.3.10 2011/09/09
918 zoom: new target profile setting: sortmap_field. If sortmap_field is given
919 the field is mapped to the value for the sortmap. Values not matching
920 sortmap_field are passed verbatim.
922 zoom: new target profile setting: sortStrategy. One of: "z3950", "type7",
923 "cql", "sru11" or "embed". The "embed" chooses type-7 or CQL sortby
924 depending on whether RPN or CQL is actually sent to the target.
928 zoom: urlRecipe result is stored in <pz:metadata type="generated-url">.
930 zoom: For content proxy authentication is stored in param name
931 "auth", instead of "authentication".
935 zoom: relay schema in SRU mode. Previously recordSchema was not affected
940 zoom: new target profile element literalTransform that holds XSLT
941 (encoded as string) for target. Only if present and non-zero length it is
942 considered present. This takes precedence over transform.
944 Don't rely on trang anymore for Git checkout builds. Configuration in etc
945 will only be properly validated if trang is available. From now on only
946 relax NC files are bundled with the source dist.
948 Updates to check for Boost unit test (autoconf stuff). On MacOSX this
949 component was not detected when it should be.
953 z3950_client: mark non-surrogate diagnostics from backend.
955 zoom: a proxy may be specified for HTTP fetch of target profiles.
959 Honor piggyback. Makes some SRU targets behave that insist on
960 maximumRecords > 0, but also increases performance.
964 Fix dlpath in installed metaproxy.xml for RPM/Deb package. The
965 file was not update for libdir/metaproxy4 in version 1.3.2.
969 Change location of Metaproxy modules from libdir/metaproxy to
970 libdir/metaproxy4. Directory libdir/metaproxy is also owned by
971 libmetaproxy3 and, thus, should not be used by libmetaproxy4.
973 New facility to dump APDUs from zoom filter. Enabled by
974 <log apdu="true"/> in the zoom filter configuation.
976 zoom filter bug fix: SRU diagnostics received from backend was
977 not properly converted to Bib-1 diagnostics.
979 Package metaproxy depends on libmetaproxy4, same version.
983 zoom: fix a bug WRT passing authentication parameters to backends.
987 Fixes for windows Makefile.
989 --- 1.2.10 2011/07/25
991 Change major version of metaproxy library from 3 to 4. This in turn
992 makes new package names for Debian and RPM.
996 zoom: enable marc-8 encoding by default for usmarc and opac (in pz2
999 zoom: configurable element sets for record transforms.
1001 zoom: the target profile based transform is specified by element_transform
1002 in element torus of of the ZOOM filter configuration ; default value
1003 is "pz2". Target profile based retrieval is specified by element_raw
1004 in configuration. It will perform same steps, but omit the XSL transform.
1005 Default value is "raw".
1007 zoom: element set is omitted if not set in profile. But only if pz2
1008 transform is in effect. Previously the default element set was to "F".
1010 zoom: For non-CF targets database arguments are parsed. User may supply
1011 db,user=myuser&password=mypass for non-CF targets. These values override
1012 what's given the authentication from the target profile.
1014 session_shared: fix reference to freed memory. Would occur if a search
1015 response had non-surrogate diagnostics.
1017 --- 1.2.8 2011/06/22
1019 Route may be given for each port in frontend_net.
1021 --- 1.2.7 2011/06/22
1023 Documentation for zoom filter. Local target profiles may be specified.
1025 Fixes for zoom filter.
1027 --- 1.2.6 2011/06/15
1029 First version with zoom filter.
1031 --- 1.2.5 2011/05/06
1033 Filter z3950_client may be configured to always send a close APDU
1034 to backend target when connection/session is closed. This will only
1035 happen if close APDU is not already sent. Enabled by configuration
1036 for z3950_client (force_close).
1038 Filter virt_db and multi: relay close APDU.
1040 Filter virt_db and multi: relay init size parameters
1041 preferredMessageSize and maximumRecordSize.
1043 Filter sru_z3950: increase init sz parameters from 1MB to 10 MB.
1045 --- 1.2.4 2011/01/27
1047 RPM package for Metaproxy works for both SLES11 and Centos 5.5.
1049 metaproxy-config: exec_prefix, libdir, includedir. Use these variables
1050 as determined by configure.
1052 RPM: Release includes 'indexdata' name. Use indexdata in release name so
1053 this package can be distinguished from other vendors.
1055 --- 1.2.3 2010/10/04
1057 Fix filter multi: relay idAuthentication parameters.
1059 --- 1.2.2 2010/09/15
1061 Add metaproxy-config for returning compiler flags, libraries.
1063 --- 1.2.1 2010/08/18
1065 Fix --with-boost=PREFIX .
1067 --- 1.2.0 2010/07/09
1069 session_shared: fix use of maintenance thread.
1071 Introduce 'start' method for filters and routers. It gets called after
1072 configure and after fork, but before processing. This changes API -
1073 from libmetaproxy2 to libmetaproxy3.
1075 --- 1.1.7 2010/06/30
1077 session_shared: ensure backend session is closed if init rejected
1080 z3950_client: fix NULL ptr reference that could occur if two clients
1081 connected concurrently and if max-sockets was in effect.
1083 --- 1.1.6 2010/06/21
1085 Fix bug 3497 - Metaproxy unstable while stopping.
1087 Fix bug 3495 - SEGV in SRU filter.
1089 --- 1.1.5 2010/06/15
1091 Filter multi throws diagnostic 'Present Out of Range' when
1092 appropriate - rather than returning 0 records.
1094 Filter virt_db: fix bad result reuse. Could happen if a result
1095 was overriden and a backend did not supported named result sets.
1097 --- 1.1.4 2010/05/11
1099 Filter log: category access logs diagnostics even if searchStatus
1100 or presentStatus is 'success'.
1102 --- 1.1.3 2010/04/21
1104 The SRU to Z39.50 filter does repeated Z39.50 present requests
1105 to fetch all records. Needed when a Z39.50 server returns partial
1106 results (due to message size limits).
1108 --- 1.1.2 2010/03/18
1110 Metaproxy now kills all child processes that are spawned by
1111 modules (in case of fork, exec).
1113 --- 1.1.1 2010/01/28
1115 Debian package now installs /etc/metaproxy/metaproxy.xml which
1116 includes all XML files /etc/metaproxy/filters-enabled .
1117 The include facility uses YAZ' yaz_xml_include_simple (YAZ 4.0.1).
1119 --- 1.1.0 2010/01/20
1121 Package based on YAZ version 4 and YAZ++ 1.2.0. It now includes a
1122 development package to facilitate 3rd party Metaproxy modules.
1124 --- 1.0.23 2010/01/04
1126 Filter virt_db: Close backend filter session when Init rejected is received
1127 from it (in which case it's not really closed yet). This will ensure we don't
1128 run out of resources such as FDs in this case.
1130 sru_z3950 filter: Accept any database (including those not listed).
1132 --- 1.0.22 2009/12/03
1134 Prepare for 64-bit YAZ. yazproxy will still work with YAZ++ 1.1.4 or
1135 later which means YAZ 3.0.47 or later.
1137 --- 1.0.20 2009/11/19
1139 For filter virt_db, the database is a glob pattern and the virtual
1140 database sections are consulted in the order given.
1142 --- 1.0.19 2009/07/08
1144 For filter multi, the target (for routing) may be given as a glob-pattern.
1146 More documentation for filters virt_db and multi.
1148 Update schema to allow for no database in sru_z3950 filter.
1150 --- 1.0.18 2009/06/30
1152 Added limit filter to put sleep (penalty) for heavy use.
1154 Filter frontend_net may be configured to limit the number of new connections
1155 from same IP to some value (connect-max).
1157 Fixed the load_balance filter.
1159 --- 1.0.17 2009/06/16
1161 Fix path for metaproxy executable for Debian init.d script.
1163 --- 1.0.16 2009/06/10
1165 SRU to Z39.50 filter honors x-username and x-password. If only
1166 x-username is given that translates to open authentication (Z39.50v2). If
1167 both x-username and x-password is present that translates to idPass
1168 authentication (Z39.50v3).
1170 New facility to change current working directory (-w).
1172 Update to upstream skeleton of init.d script. Should fix bug #2619.
1174 Filter session_shared now caches records (used to only cache connections
1177 Filter session_shared now invalidates a Z39.50 session if a server
1178 returns -1 hits. This facility was also part of yazproxy and gets around
1179 a bug in Voyager-based Z39.50 servers.
1181 --- 1.0.15 2008/11/18
1183 Fixed reference counting bug in Z39.50 client module (could cause SEGV).
1185 --- 1.0.14 2008/06/09
1187 Fixed the value of SRU record schema in searchRetrieve response. It was set
1188 to a fixed value of "dc" before.
1190 Serialize identical SRU requests. This is useful if HTTP client software
1191 fires identical requests against metaproxy.
1193 Allow Z39.50 target to be specified for SRU requests by using SRU extra
1194 parameter x-target. Allows SRU to contact arbitrary Z39.50 targets and
1195 avoid static configuration. This facility is handled by the sru_z3950 module
1196 and the z3950_client module.
1198 Allow maximum number of sockets to be used for a Z39.50 client by the
1199 use of SRU extra parameter x-max-sockets. This facility is handled by the
1200 sru_z3950 module and the z3950_client module.
1202 --- 1.0.13.1 2008/02/29
1204 Simplified check for Boost libraries.
1206 --- 1.0.13 2008/02/29
1208 First Debian package.
1210 The sru_z9350 filter now recognizes SRU parameter z-target as being
1211 a ZURL of the form host/database .
1213 Mergetype may be specified for filter 'multi'.
1215 --- 1.0.12 2007/09/19
1217 Fixed problem in Makefile WRT library specifictions. This could produce
1218 linker errors (when they should not happen).
1220 Fixed bug #1341: MetaProxy returning different results. Problem was that
1221 fix-up of record database did not normalize the database name.
1223 Documentation updates for Windows compilation.
1225 --- 1.0.11 2007/06/14
1227 Fixed problem with logfile being truncated.
1229 --- 1.0.10 2007/05/23
1231 Fixed bug #1136: Access rights not enforced.
1233 Extension for log module. The log category 'access' logs more details.
1234 New category 'user-access' added which is simlar to 'access' but adds
1235 the Z39.50 user as for all entries in a session.
1239 Added support for configurable default/force target/vhost for module Z39.50
1242 --- 1.0.8 2007/01/25
1244 Implemented filter, session_shared, which optimizes usage of Z39.50
1245 sessions and result sets.
1247 New filter, record_transform, which converts MARC/XML records.
1249 New filter, sru_z3950, which converts SRU to Z39.50 packages.
1251 New filter, load_balance, in development.
1253 New filter, zeerex_xplain.
1255 XML framework for config files started.
1257 Master RelaxNG Compact schema's are found in xml/schema/*.rnc,
1258 RelaxNG XML schemas and XML Schema's are generated from RNC syntax.
1259 XML config files are checked against RNG and XML Schema's.
1261 XSLT transformation framework added in xml/xslt/*.xsl, consisting mainly of
1262 LOC Marc21 stylesheets found at http://www.loc.gov/marcxml/xslt.
1263 Added stylesheet explain2cqlpqftxt.xsl which transforms a standard SRU ZeeReX
1264 explain record to YAZ CQL-to-PQF text config file.
1266 --- 1.0.7 2006/11/07
1268 Added 'timeout' setting for filter frontend_net which specifies the number
1269 of seconds a session is idle before it is closed. Default timeout is
1272 --- 1.0.6 2006/07/07
1274 Database name in records returned set for virt_db/multi filters.
1276 Filter session_shared now functional.
1278 Log filter can be configured to write to a given file using 'filename'
1279 element. Also information category can be specified with 'category'. If
1280 filename is omitted, the log filter writes to stdout. See etc/config5.xml
1283 --- 1.0.5 2006/05/16
1285 Fixed compilation on Windows.
1287 --- 1.0.4 2006/05/16
1289 Added documentation for the hidenavailable option for the multi filter.
1291 --- 1.0.3 2006/05/16
1293 Fixed bug #573: Hide errors for individual servers. If the element
1294 'hideunavailable' is given in the configuration, individual servers
1295 being unavailable are hidden (unless all are unavailable).
1297 Fixed bug #574: Database names are recognised case-sensitively.
1299 Fixed bug #567: Fix up database name in Name-Plus-Record.
1301 Fixed bug #568: Update win/makefile for VS 2005.
1303 Fixed bug #569: Some options throws unknown exception.
1305 --- 1.0.2 2006/04/28
1307 More information about virtual hosts. The 'etc' directory is part of the
1310 --- 1.0.1 2006/04/27
1312 Build instructions for Windows. NMake makefile part of distribution tar.
1314 --- 1.0.0 2006/04/24
1318 Filters functional: auth_simple, backend_test, frontend_net, http_file,
1319 log, multi, query_rewrite, template, virt_db, z3950_client.
1321 Filters in development: session_shared.
1323 Pseudo-filters: template, dl