3 Fix incorrect diagnostic for reverse cql2pqf MP-619
4 The cql_transform_rpn2cql_stream_r returns Bib-1 diagnostics; not
7 deb: deprecated substitution ${Source-Version} MP-621
9 Fix systemd: reload stops metaproxy MP-620
10 Detect systemd and just do nothing when reload/force-reload is
11 used. Log, however, that it really is not reloading.
13 Add http-req-max to frontend_net MP-617
17 Fix multi: hideunavailable don't hide target that timeout MP-615
21 Fix race condition in MP log output MP-522
23 Fix 'Group' is duplicated twice in RPM spec
25 Fix crash in log filter when record syntax is omitted MP-613
27 Change target z3950.loc.gov:7090/voyager -> lx2.loc.gov:210/LCDB_MARC8
30 Fix Control-C does not stop Metaproxy spawned by shell MP-610
31 Check for fork mode instead (-D) - rather than debug (-X)
35 sru_z3950: allow CCL in SRU search MP-606
36 Makes the sru_z3950 filter convert to CCL queries if query type
37 "ccl" is used, eg ?query=water&queryType=ccl&... for SRU 2.0.
41 Fix dead lock in session_shared (init) MP-605
45 Fix session_shared caches set with diagnostic MP-604
47 Fix assertion failed in session_shared filter MP-603
49 Make /usr/share/metaproxy be part of metaproxy RPM MP-601
51 Log YAZ version upon start MP-599
55 sru_z3950: undo Serialize identical SRU GET requests MP-598
56 Now much more elegantly handled by session_shared.
58 session_shared: anticipated init and search MP-597
60 z3950_client: separate init timeout MP-596
61 Both init-timeout and connect-timeout are configurable by this change.
62 Default is 10 seconds.
66 zoom: support cf_-params MP-595
68 http_client: returns 404 if no destination URI is given
72 zoom: allow / in user and password db args MP-592
76 Log rotate no longer reloads configuration - instead Metaproxy just
77 re-opens log files when SIGHUP is received. MP-485
79 Debian : init.d metaproxy reload should check configuration MP-591
81 Fix Metaproxy stops logging after check config failed MP-590
85 Fix double free in log filter (with incorrect config) MP-589
87 zoom: Add allow_ip feature - fixes MP-588
88 Allow a list of IPs to be given separated by blanks
89 <allow auth_url="http://mkc-admin.indexdata.com/..."
90 allow_ip="127.0.0.1 ::1" .. >
92 cql2pqf.txt: Maps dc.subject to Bib-1 21 rather than 47
94 zoom: fix CS write-check
98 zoom: handle contentAuthentication MP-587
102 Destroy router and filters in parent process MP-584
104 Update NMAKE makefile to use Visual Studio 2013 along with Boost 1.57,
105 ICU 54.1, Libxml2 2.9.2, Libxslt 1.1.28.
109 Use YAZ backtrace facility MP-582
111 Fix libmetaproxy-dev depends on libgnutls-dev - MP-580
112 libgnutls-dev is unavailable on jessie.
114 Update template filter to avoid Pimpl MP-579
116 cgi: POSTed content - part of MP-562
118 Fix filter cgi does not relay session close MP-577
122 Add support for binding outgoing IP for http_client and z3950_client
123 This is enabled by bind_host setting. MP-575
127 z3950_client: allows negotiation charset to be set MP-574
129 cgi: more functional but no support for POSTed content yet (part of MP-564)
131 --- 1.5.11 2014/10/20
133 http_file: add include of sys/stat.h fixes MP-576
135 Fix documentation about SRU client support MP-572
137 Initialize Libxml2 - for threaded operation MP-571
139 --- 1.5.10 2014/08/26
141 On SIGTERM shut down connection+listening sockets MP-568
142 This fixes a problem with 'metaproxy stop' sometimes taking a long time.
146 zoom: make retry on failure configurable MP-565
147 The default and existing behavior is that backend failures (any
148 diagnostic) makes the module re-search once. The behavior may
149 be changed by db parameter 'retry'. If given value '0' disables
150 retry and '1' enables it. If not given, the Torus record may
151 specify with element retryOnFailure (value '0'/'1').
155 Fix race condition in SIGTERM handling. Could terminate whole metaproxy
156 instead of just a child process. Extremely rare in real life, hit me with
157 CF stress testing. MP-559.
161 http_file: passthru option MP-557
162 New facility for http_file to passthru - even if an area is matched. The
163 default behavior (passthru=false) is to return 404: Not found. With
164 passthru=false, next filter is consulted.
168 Fix ref to freed memory in log filter 1line - MP-556
170 echoedSearchRetrieveRequest support MP-555
174 zoom: allow hostname to be given for ipauth MP-552
175 The Torus setting for that is called auth_hostname.
179 zoom: IP auth use field "ipRanges" rather than "ip" MP-551
183 session_shared: close in ~BackendInstance MP-549
184 This fixes a serious issue where some MP would leak sockets.
186 session_shared: mutex lock in BackendClass::release_backend MP-550
187 Fixes a SEGV that could occur (in rare cases).
191 zoom: Do not include ZOOM C's fake surrogate diag recs MP-547
193 zoom: fix invalid present response in some cases MP-546
195 zoom: Relay Torus HTTP error message
199 Check for proper limits before using RecordCache functions MP-544
203 Build packages for Ubuntu Trusty Tahr 14.04 LTS
205 sort: crash / invalid_read in filter sort MP-541
207 sru_z3950: facet should be stored in additionalSearchInfo MP-533
209 doc: fix missing man pages MP-542
211 cql_rpn: fix threading problem with CQL to RPN conversion MP-497
213 cql_rpn: allow conversion from RPN to CQL (reverse) MP-537
217 sru_z3950: fix facet response (memory corruption) MP-532
219 log: fix crash idPass user is omitted MP-530
223 query_rewrite: pass-thru non Type-1 queries MP-527
225 metaproxy stop (SIGTERM) kills all child processes spanwed by
226 filter (if any) before invoking filter destructors. MP-525
230 http_file: only supports HTTP GET MP-523
232 session_shared: shut down expire thread in destructor
233 This ensures that expire thread is not running after destruction
234 and does bad memory references, etc.
236 frontend_net: fix segfault on startup MP-524
237 Would happen if MP was listening on multiple ports and one
238 of the ports was already in use (and MP would exit).
240 frontend_net: fix memory leak MP-521
241 This leak would occur if all sessions were in use and the input
242 queue was cleared when a client would close connection (socket).
244 frontend_net: fix compilation on Windows (SIGUSR1 does not exist)
248 http_rewrite: use local skiplist; fixes memory corruption. MP-520
250 http_client: x-forwarded-for controls X-Forwarded-For presence
251 If x-forwarded-for setting (boolean) is enabled, http_client will
252 generate an X-Forwarded-For header entry which includes existing
253 X-Forwarded-For (if any) and current peer address (immediate client
254 of Metaproxy). By default x-forwarded-for disabled and X-Forwarded-For
255 will not be generated.
257 z3950_client: client_ip controls client-IP presence
258 If client_ip setting (boolean) is enabled, z3950_client will
259 generate a client_ip OID as part of init request which includes
260 previous client_ip (if any) and current peer address (immediate
261 client of Metaproxy). By default client_ip is disabled and client_ip
262 will not be generated.
264 HTTP X-Forwarded-For/Z39.50 Client-IP support
265 virt_db, multi: relays Z39.50 client-IP.
266 sru_z3950: converts X-Forwarded-For header to Z39.50 client-IP.
267 zoom: uses Client-IP or origin address (prefer Client-IP).
268 frontend_net: Strips tcp: from peer address (so that it is no longer
269 printed and stripped in zoom filter).
270 z3950_client: builds client-IP list - combining immediate peer address
271 as returned by COMSTACK and existing client-IP list (if avaiable).
272 The Origin only printes first X-Forwarded address.
276 Log when SIG{TERM,USR1} is received ASAP MP-513
277 Do it in frontend_net event loop rather than in place for metaproxy
278 main, which only exits when all sessions are terminated for SIGUSR1
281 metaproxy-config: quote some RHS values (that might include blanks)
283 Fix leak in sru_z3950 filter - when explain is returned MP-511
285 Allow stylesheet to be given for sru_z3950 filter MP-510
286 This is based on a patch by Sven Porst and the functionality
287 of the YAZ Generic Frontend Server.
289 Allow base attribute in configuration file tags - the attributes are
290 inserted by XInclude usage as mentioned on
291 yazlist: http://lists.indexdata.dk/pipermail/yazlist/2012-Au
292 and noted in a gist: https://gist.github.com/3551094
294 Package metaproxy provides virtual package metaproxy6 MP-508
295 This allows module packages to depend on a metaproxy server
298 Filter destructors called upon daemon termination MP-505
299 When metaproxy daemon receives SIGTERM the stop method of each filter
300 is called. The stop method existed before, but did not take any
301 arguements (void).. The frontend_net filter can now distinguish
302 between SIGUSR1 (stop bind, but keep sessions running) and SIGTERM
303 (stop immediately). Note that this changes the API+ABI of Metaproxy
306 zoom: sync up with Pazpar2 WRT authentication handling MP-492
308 Router: use shared_ptr rather than naked one - to avoid leak if an
309 exception is thrown in configure.
313 zoom: Add nocproxy=1 for contentConnector sessions MP-501
315 Doc: mention proper versions; fix link to Boost win binaries.
317 Windows: update for Boost 1.55
319 Windows: avoid warning when using boost::split. Done by defining
320 _SCL_SECURE_NO_WARNINGS for Visual Studio.
322 Fix LSB conformance for /etc/init.d/metaproxy MP-500
323 Debian: add support for /etc/init.d/metaproxy status
325 sort: Add const to Record less than operator in order to compile on
330 session_shared: fix element-set handling in record caching. MP-499
332 document http_rewrite. MP-468
334 http_write: Honor X-Metaproxy-SkipLink MP-479 . Filter understands and
335 respects the header (which will normally come from the cproxy filter)
339 RPM: fix dependency for libmetaproxy5-devel MP-496. The libmetaproxy5-devel
340 RPM was unsable in version 1.4.0.
342 Remove log message about "backend classes". Appeared in version 1.4.0.
346 Build RPM/Deb packages with YAZ 5 and yazpp 1.5. Metaproxy still compiles
347 with older version from source, but packages now use YAZ 5 that supports
350 sru_z3950: Fix SEGV for decoding invalid SRU requests
351 Incorrect reference to union (was explain response rather than
354 session_shared: match additionalSearchInfo (includes facets). In
355 layman's terms means that means that facets are properly handled
356 by this filter. Eg a change in requested facets will issue new
357 search and facets from exisiting result set are cached.
359 --- 1.3.62 2013/09/11
361 http_rewrite: better handling of <script> content in HTML parser. MP-486
363 http_rewrite: fix threading issue with regex. MP-482
365 bounce: don't use strdup for fixed length content. Error occurred in echo
368 session_shared: expire backend class when no instances left. This
369 means memory clean up, but not really a leak fix.
371 virt_db: fix leak for naked ptr.
373 cql_rpn: use config relative path for cql2rpn file. MP-481
375 Updates for upcoming YAZ 5.
377 --- 1.3.61 2013/08/29
379 New configuration directories ports.d/routes.d for metaproxy
380 configuration. This allows 3rd party packages to install config
381 for ports and new routes. MP-477
383 --- 1.3.60 2013/08/21
385 Fix metaproxy-config --libs to return non-mt over mt libs.
386 The -mt versions do not exist as shared objects and cause
387 linker errors for applications linking with Metaproxy.
388 Problem present in versions 1.3.56 - 1.3.59. MP-475
390 HTML: clean up char checks. Add ptr to HTML parse spec
392 HTML parser stops eating tag when <-char is met MP-473
394 rewrite: do not even compare content types, if we don't have any
395 the regex_match caused a segfault if we had no content-type in the
398 rewrite: within header=... matches only the header value
399 Used to match the whole header line, but we need to use
400 ^$ anchoring for host-relative regexps, and they need to
401 anchor at the ends of the value. MP-470.
403 rewrite: Ruleset functional MP-469
405 --- 1.3.59 2013/07/12
407 session_shared: negotiate init sz parameters.
408 By default, session_shared will honor the paramters given by client.
409 An alternative, but not implemented, algorithm would be to only
410 re-use sessions with same sz parameters. This however, could reduce
411 re-use of sessions a lot. Hence this, simple algorithm instead. The
412 negotiation to a maximum sz values can be enabled by using
413 <init maximum-record-size="sz1" preferred-message-size="sz2"/>
414 in configuration. This will make session_shared send those values
415 to backends and use returned init values in negotaition to
416 client before session_shared.
418 session_shared: resolve result-set references.
419 The reference is substitued with the query for old set if database
420 match and query type is Type-1. If not the reference will issue a
423 sort filter: relays RecordComposition including elementSet in use for
426 http_client: better diagnostics
428 http_client: disables HTTP redirect handling by default.
429 It can be configured with max-redirects in configuration.
431 --- 1.3.58 2013/06/12
433 Fix loading of filters cql_rpn and sru_z3950 . Was broken by 1.3.57.
435 --- 1.3.57 2013/06/12
437 Make RouterChain and RouterXML part of public API (libmetaproxy).
439 http_client: honor X-Metaproxy-Proxy as an alternative to
440 the "proxy" configuration. Allows proxy to be set per HTTP request.
442 sru_z3950: For SRU requests recognize x-client prefixes as a way
443 to ingest "database parameters".. The suffix of x-client- serves
444 as database argument name. Multiple may be given. For example:
445 http://path/db/?operation=searchRetrieve&x-client-user=a&x-client-password=b
446 is turned into Z39.50 database
449 --- 1.3.56 2013/05/27
451 New filter present_chunk. This filter allows splitting of present requests into smaller chunks.
453 New filter sd_remove, which replaces surrogate diagnostics with
454 SUTRS records. This filter tries to deal with clients that breaks
455 when receiving surrogate diagnostics.
457 new filter http_client. Same role as z3950_client, but just for
458 HTTP. Allows Metaproxy to operate as a HTTP proxy.
460 New filter http_rewrite1, which serves as purpose on how to rewrite
461 HTTP content with Metaproxy.
463 Use libboost-system if available, because newer versions of libboost-threads
464 requires libboost-system.
466 Allow frontend_net to serve SSL/HTTPS, because we can specify a server
469 --- 1.3.55 2013/04/10
471 zoom: Torus setting: authenticationMode which may hold values "basic"
474 --- 1.3.54 2013/03/27
476 configure: check for Libxslt support in YAZ and rely on definitions
477 from yaz-config, rather than doing own xslt/xml2 checks.
479 Allow timestamp format for log lines to be given with option -m
480 for metaproxy. Similar to yaz-ztest/GFS option -m.
482 Document log category 'line' for log filter.
484 Solr configuration example in etc/config-solr.xml
486 multi: do not mess with request package. For scan and search,
487 database-names were modified and the request package was left with
488 dangling pointers that caused a log filter to fail (request package
489 inspected after multi was invoked).
491 Documentation: fix id of metaproxy-config ref .
493 Documentation: update for USEMARCON support.
495 --- 1.3.53 2013/01/31
497 record_transform: allow OPACXML to OPAC conversion
499 zoom: document content-proxy
501 zoom: document db parm content-{user,password}, torus_url. Also
502 <torus auth_url="..> which makes zoom operate in authenticated mode
505 --- 1.3.52 2012/11/30
507 zoom: fix http://-check. SRU search broken in 1.3.51.
509 --- 1.3.51 2012/11/15
511 zoom: only append http:// for SRU if not already given . Makes it
512 possible to use https-URLs.
514 Use yazpp 1.4 or later due to new ABI.
516 frontend_net: allow max package size to be specified. Controlled by
517 attribute 'max_recv_bytes' of element 'port'.
519 --- 1.3.50 2012/10/29
521 For most generated diagnostics by filters, typically temporary
522 system error, augment addinfo message with filter name.
524 Add support for CentOS 6 packages.
526 sru_z3950: interpret Z39.50 diagnostics part of Init Response.
528 Add man page for metaproxy-config.
530 --- 1.3.49 2012/10/18
532 zoom: new config element passthru. This defines an element set that is
533 passed verbatim to the backend in pz2 mode.
535 auth_simple: allow both idPass and open auth. Also fix SEGV that could
538 --- 1.3.48 2012/10/08
540 z3950_client: fix string handling for init diagnostics in the case where
543 query_rewrite: no charset conversion for error queries. Avoid performing
544 charset conversion for query conversion errors. The resulting Type-1
545 query is invalid in this case.
547 --- 1.3.47 2012/10/04
549 For graceful stop (SIGUSR1), metaproxy will kill children processes.
551 Log when metaproxy is invoked in test mode (-t).
553 Log PID for each log message.
555 multi: combine both NSDs and multiple NSDs into one (diagnostics).
557 z3950_client: fixup multiple NSD's too. Like surrogate diagnostics,
558 a (backend=target) is appended for each diagnostic so that can be
559 determined the origin of error.
561 multi: hideerrors also in use for present response.
563 Solr example in zoom man page.
565 Fix typo in query_rewrite config example.
567 Log at least first non surrogate diagnostic. Instead of
568 "Z_Records_multipleNSD"
570 multi: Fix check for opt Records in present response. A SEGV could occur
571 if a target did not return records and no diagnostics.
573 --- 1.3.46 2012/09/24
575 Yet another fix for graceful stop.
577 --- 1.3.45 2012/09/12
579 sru_z3950: relay surrogate diagnostics.
581 --- 1.3.44 2012/09/10
583 zoom: Honor extraArgs, strip # in zurl.
585 multi: fix SEGV for scan. Reported by Rustam T. Usmanov.
587 zoom: url_recipe allow %{var[reg]} substitutions.
588 It's like ${var[reg]} but does URI component encoding as well.
590 --- 1.3.43 2012/08/22
592 RPM/Deb: require yazpp 1.3.2, because it fixes a missing close of
593 non-keepalive HTTP sessions.
595 http_file: allow zero size files (bug fix)
597 Fix zoom schema: auth_url is optional
599 --- 1.3.42 2012/08/20
601 zoom: fix un-init memory (could result in SEGV at session close)
603 frontend_net: handle X-Forwarded-For. This is stored in package.origin()
604 and may be used in filters as usual.
606 zoom: authentication via Torus lookup
607 Enabled by new configuration setting: auth_url . If this is defined,
608 the zoom module will contact Torus for auth/IP lookup and that will
609 define realm to be used in session.
611 --- 1.3.41 2012/08/10
613 virt_db: Fix database name - first character we removed by mistake.
614 Bug introduced in 1.3.40.
616 --- 1.3.40 2012/08/06
618 virt_db: Don't use "unix path" as database for Unix sockets.
620 --- 1.3.39 2012/08/02
622 z3950_client: Don't tamper with / in zurl - fixes problems
623 using Unix sockets for backends.
625 session_shared: fix integer overflow problem with hit count.
627 session_shared: avoid long usage of cached queries.
629 zoom: New database argument , torus_url to set URL of Torus
630 record to be fetched.
632 --- 1.3.38 2012/07/04
634 Fixes for 'metaproxy reload' for RPM/Debian packages.
636 zoom: Allow rpn2cql conversion to be augmented with a properties file.
637 Element rpn2cql can be specified per-target for the zoom filter.
639 log: New category "line" which is a single-line log message with
640 most important parts of a HTTP/Z39.50 request/response.
642 --- 1.3.37 2012/06/01
644 frontend_net: add facility to report live statistics about response
645 times and current thread usage. The report is an XML document
646 and is triggered for a specific URL path. This is set by <stat-req>
647 in the configuration of frontend_net. By default this report is
648 disabled (same as empty value for <stat-req>).
650 Fix reload problem in init.d script for RPM/Debian.
651 The '/etc/init.d/metaproxy reload' in some cases would stop but not
652 start metaproxy - effectively stopping the service.
654 Don't display start log message when config testing (-t).
656 zoom: avoid CCL message limit of 1K in ZOOM filter.
658 --- 1.3.36 2012/05/10
660 metaproxy init script reacts to reload which does graceful stop +
661 start and is used by logrorate script.
663 --- 1.3.35 2012/05/09
665 Fixes for Windows compilation.
667 Metaproxy daemon reacts to SIGUSR1 in which case it will leave
668 existing sessions running but terminate the monitor process that is
669 used in keepalive mode.
671 Change start log message to 'metaproxy start'. Was 'Metaproxy start'
672 before. Consistent with 'metaproxy stop' message.
674 zoom: document zoom's proxy_timeout
676 z3950_client: fixup addinfo for init response
678 virt_db: return other diagnostic if init is rejected. Diagnostic 236:
679 "Access to specified database denied" is returned, but only if init
680 response from backend does not carry diagnostics already.
682 multi: relays user info for first rejected target. The other-information
683 field for init response for first rejected target is in common init
684 response. This ensures that some backend init diagnostics are returned to
687 --- 1.3.34 2012/04/25
689 frontend_log: extend logging (when message is given in config).
691 --- 1.3.33 2012/04/25
693 zoom: Fix check for proxy. Use diagnostic 1074 for proxy failures.
695 --- 1.3.32 2012/04/24
697 sru_z3950 filter passes through incoming Z39.50 requests again. Was
698 not handled by mistake in Metaproxy versions 1.3.29, 1.3.30 and 1.3.31.
700 --- 1.3.31 2012/04/24
702 zoom: fixes for retry/proxy failover logic. More logging.
704 --- 1.3.30 2012/04/23
706 zoom: return addinfo="proxy failure" for proxy failures. This also
707 changes the scheme for dealing with proxies a bit. zoom now always
708 do proxy check, even if there's no failover. Fortunately, that's not
711 zoom: Init rejected wo diagnostics maps to Bib-1:1014.
712 Bib-1 1014, "Init/AC: Authentication System error", seems pretty
713 generic. We don't know why the init would fail; IP, user, block IP, etc.
714 sru_z3950 filter maps this to SRU diagnostic 3: "Authentication error".
716 zoom: guess if invalid SRU response was an auth failure
718 session_shared: disable session retry by default . Can be enabled by
719 restart="true" in resultset section.
721 --- 1.3.29 2012/04/18
723 zoom: may read cf-proxy's config settings.
724 This reduces manual configuration of the content proxy server host.
725 The ZOOM module will use the old style session.proxyhost if "server"
726 is given (deprecated) and use the new style proxyhost/session if
727 "config_file" is in use.
729 frontend_net: remove incoming requests that can not be handled
730 Requests in queue for filter frontend_net are removed if client
731 closes connection for the session and request is not yet handled.
733 sru_z3950: serialize requests. This is to ensure that pipelined
734 HTTP requests are handled properly.
736 --- 1.3.28 2012/04/04
738 New class, wrbuf, that wraps YAZ' WRBUF.
740 --- 1.3.27 2012/03/30
742 Metaproxy daemon is now running as user "metaproxy". This user is
743 managed by package maintainer scripts. The user information is stored
744 in /etc/metaproxy/metaproxy.user .
746 --- 1.3.26 2012/03/20
748 New filter, sort, that allows sorting of XML records via Z39.50
751 Filter record_transform: USEMarcon support. For example:
752 <retrieval syntax="usmarc">
753 <backend syntax="unimarc" name="F">
754 <usemarcon stage1="/etc/usemarcon/uni2us/uni2us.ini"/>
758 Filter multi: empty route pattern uses route as default.
760 <target route="z3950.indexdata.com">z3950.indexdata.com</route>
761 may use the shorter notation
762 <target route="z3950.indexdata.com"/>
764 Filter query_rewrite: use config path to locate XSLT.
766 Filter frontend_net: log statistics.
767 If a custom message element in frontend_net configuration it makes
768 the frontend_net filter produce a log entry whenever an operation
769 is completed. The log is always written using yaz_log with the
770 custom message given, the package ID (session ID) , the time
771 the operation has been active (end-to-end) , the threads currently
772 active/total and the size of the request input/output queues.
774 query_rewrite: charset conversion of query terms.
775 This is an optional feature. Enabled by element <charset> in
776 configuration with attribute 'from' and 'to' that specifies
777 from/to encodings. The default 'from' encoding is UTF-8.
779 Filter record_transform: honor piggyback searches.
781 Filter zoom: re-connect when database is reused.
782 Re-connect is necessary if a connection is lost or a timeout occurs.
783 If not, we'll be seeing zero hits, when we shouldn't.
785 --- 1.3.25 2012/02/29
787 zoom: Change scheme for dealing with content proxy URLs. The module
788 now has its own common XSL transform that is enabled by record_xsl
789 attribute in the configuration. This XSL gets parameter cproxyhost
790 that holds the host for the content proxy session . The genearted-url
791 is created only if urlRecipe is enabled. In previous version default
792 value of urlRecipe was ${md-electronic-url}; it is now empty and
793 disabled by default. Also generated-url no longer includes the content
794 proxy host. Content proxying URLs is supposed to the handle in the record_xsl
797 zoom: new setting timeout that specifies timeout for outgoing Z39.50/SRU
798 connections. Default value is 40 (seconds).
800 zoom: tune CCL to Z39.50 diagnostics mapping. Throw Bib-1: 108
801 "Malformed query" for syntax errors and related ones; throw
802 Bib-1: 3 "Unsupported search" for everything else. Details from
803 the CCL parser is provided as additional-info.
805 multi: new setting hideerrors that makes multi only relay diagnostics
806 to a client if all backends fail.
808 --- 1.3.24 2012/02/23
810 zoom: empty ccl_map field-mappings disables CCL map.
812 zoom: fix Explain search that could return error if session was
815 --- 1.3.23 2012/02/10
817 zoom: returns Explain records for database IR-Explain---1. The
818 target profile records are converted to Explain records via XSLT.
820 session_shared: make error recovery configurable. Whether a search
821 is restarted on errors or not, is configurable by attribute "restart"
822 in element "resultset" in configuration.
824 session_shared: only relay init for first request. session_shared, for
825 each backend class, now only relays first init request (rather than all).
826 The module only needs to save init response info once. This avoids the
827 need to check for session max.
829 --- 1.3.22 2012/02/02
831 zoom: fix memory leaks.
833 session_shared: maximum number of sessons is configurable. Default
834 value is 100. Result-sets for backends without named result sets are
835 only re-used if databases is identical for a search. This is under the
836 assumption that performance may suffer for those backends when
837 changing the database for each search.
839 multi: combines diagnostics from all backends. All diagnostics from
840 backends are combined into multiple non-surrogate diagnostics; rather
841 than just one diagnostic from first backend.
843 --- 1.3.21 2011/12/27
845 zoom: relay realm to cproxy parameter file.
847 Configuration: Allow filter collection element inside route. This
848 makes it possible to include multiple filters at once.
850 zoom: nocproxy also disables urlRecipe.
852 --- 1.3.20 2011/12/21
854 zoom: return diagnostic if CQL sortby conv fails. Diagnostic Bib-1 214
855 "Illegal sort relation" is returned. Gets translated to SRU diagnostic
856 90: "Unsupported direction value".
858 zoom: honor database argument nocproxy. This disables creating a content
859 connector session (for non-CF targets, usually) and also relays nocproxy
860 as database argument to a CF target.
862 --- 1.3.19 2011/12/16
864 zoom: Multiple proxy hosts may be given for proxy rich database
865 parameter. List is comma separated.
867 http_file: decodes URI paths properly. Does not return 404: not found
868 if no prefix are matches. Instead packages are passed on.
870 --- 1.3.18 2011/12/08
872 zoom: content-{user,password,proxy} are passed on to content proxy
873 system and takes precedence over user,password,proxy .
875 sru_z3950: SRU extra argument x-log-enable=1 enables a search response
876 with a log element including log material from children filters. At
877 this point, only the zoom filter uses this log facility. It will
878 eventually be used by other filters as well. In particular it might be
879 useful for this feature to track all filters in used during a search.
881 zoom: for x-log-enable=1, APDUs sent by ZOOM C, records as received
882 and queries as they are manipulated are logged.
884 zoom: extend addinfo with native diagnostics. Diagnostics as received
885 by ZOOM C are put into addinfo - including ZOOM, HTTP, SRU and Bib-1
886 diagnostics. This indicates both a backend diagnostic and the original
889 zoom: default urlRecipe value is ${md-electronic-url}
891 zoom: target profile setting sruVersion is recognized.
893 --- 1.3.17 2011/11/17
895 zoom: log target profile record fetched (AKA Torus).
897 --- 1.3.16 2011/11/17
899 Change target profile parameter CfSubDb to CfSubDB.
901 --- 1.3.15 2011/11/12
903 zoom: bug fix: realm was relayed to CF targets by mistake (realm only
904 makes sense to the zoom module itself).
906 --- 1.3.14 2011/11/11
908 zoom: realm may be given as part of database.
910 --- 1.3.13 2011/10/26
912 Fix Origin class assigment method; was removd by mistake in 1.3.12.
914 --- 1.3.12 2011/10/26
916 zoom: database args x-name=value are passed through to backend database.
918 SRU filter: user may specify session ID that is passed to log entries
919 that follows. It is specified by using x-session-id in the SRU arguments.
921 zoom: fix null pointer reference which would occur for bad url parameter
922 inside "torus" or if url was not given.
924 --- 1.3.11 2011/09/09
925 Fix bug in filter session_shared where sessions would not expire
926 properly (session ttl). This in turn could make the target close the
927 connection before expected and session_shared would return diagnostic
928 2: system temporarily available.
930 --- 1.3.10 2011/09/09
932 zoom: new target profile setting: sortmap_field. If sortmap_field is given
933 the field is mapped to the value for the sortmap. Values not matching
934 sortmap_field are passed verbatim.
936 zoom: new target profile setting: sortStrategy. One of: "z3950", "type7",
937 "cql", "sru11" or "embed". The "embed" chooses type-7 or CQL sortby
938 depending on whether RPN or CQL is actually sent to the target.
942 zoom: urlRecipe result is stored in <pz:metadata type="generated-url">.
944 zoom: For content proxy authentication is stored in param name
945 "auth", instead of "authentication".
949 zoom: relay schema in SRU mode. Previously recordSchema was not affected
954 zoom: new target profile element literalTransform that holds XSLT
955 (encoded as string) for target. Only if present and non-zero length it is
956 considered present. This takes precedence over transform.
958 Don't rely on trang anymore for Git checkout builds. Configuration in etc
959 will only be properly validated if trang is available. From now on only
960 relax NC files are bundled with the source dist.
962 Updates to check for Boost unit test (autoconf stuff). On MacOSX this
963 component was not detected when it should be.
967 z3950_client: mark non-surrogate diagnostics from backend.
969 zoom: a proxy may be specified for HTTP fetch of target profiles.
973 Honor piggyback. Makes some SRU targets behave that insist on
974 maximumRecords > 0, but also increases performance.
978 Fix dlpath in installed metaproxy.xml for RPM/Deb package. The
979 file was not update for libdir/metaproxy4 in version 1.3.2.
983 Change location of Metaproxy modules from libdir/metaproxy to
984 libdir/metaproxy4. Directory libdir/metaproxy is also owned by
985 libmetaproxy3 and, thus, should not be used by libmetaproxy4.
987 New facility to dump APDUs from zoom filter. Enabled by
988 <log apdu="true"/> in the zoom filter configuation.
990 zoom filter bug fix: SRU diagnostics received from backend was
991 not properly converted to Bib-1 diagnostics.
993 Package metaproxy depends on libmetaproxy4, same version.
997 zoom: fix a bug WRT passing authentication parameters to backends.
1001 Fixes for windows Makefile.
1003 --- 1.2.10 2011/07/25
1005 Change major version of metaproxy library from 3 to 4. This in turn
1006 makes new package names for Debian and RPM.
1008 --- 1.2.9 2011/06/27
1010 zoom: enable marc-8 encoding by default for usmarc and opac (in pz2
1013 zoom: configurable element sets for record transforms.
1015 zoom: the target profile based transform is specified by element_transform
1016 in element torus of of the ZOOM filter configuration ; default value
1017 is "pz2". Target profile based retrieval is specified by element_raw
1018 in configuration. It will perform same steps, but omit the XSL transform.
1019 Default value is "raw".
1021 zoom: element set is omitted if not set in profile. But only if pz2
1022 transform is in effect. Previously the default element set was to "F".
1024 zoom: For non-CF targets database arguments are parsed. User may supply
1025 db,user=myuser&password=mypass for non-CF targets. These values override
1026 what's given the authentication from the target profile.
1028 session_shared: fix reference to freed memory. Would occur if a search
1029 response had non-surrogate diagnostics.
1031 --- 1.2.8 2011/06/22
1033 Route may be given for each port in frontend_net.
1035 --- 1.2.7 2011/06/22
1037 Documentation for zoom filter. Local target profiles may be specified.
1039 Fixes for zoom filter.
1041 --- 1.2.6 2011/06/15
1043 First version with zoom filter.
1045 --- 1.2.5 2011/05/06
1047 Filter z3950_client may be configured to always send a close APDU
1048 to backend target when connection/session is closed. This will only
1049 happen if close APDU is not already sent. Enabled by configuration
1050 for z3950_client (force_close).
1052 Filter virt_db and multi: relay close APDU.
1054 Filter virt_db and multi: relay init size parameters
1055 preferredMessageSize and maximumRecordSize.
1057 Filter sru_z3950: increase init sz parameters from 1MB to 10 MB.
1059 --- 1.2.4 2011/01/27
1061 RPM package for Metaproxy works for both SLES11 and Centos 5.5.
1063 metaproxy-config: exec_prefix, libdir, includedir. Use these variables
1064 as determined by configure.
1066 RPM: Release includes 'indexdata' name. Use indexdata in release name so
1067 this package can be distinguished from other vendors.
1069 --- 1.2.3 2010/10/04
1071 Fix filter multi: relay idAuthentication parameters.
1073 --- 1.2.2 2010/09/15
1075 Add metaproxy-config for returning compiler flags, libraries.
1077 --- 1.2.1 2010/08/18
1079 Fix --with-boost=PREFIX .
1081 --- 1.2.0 2010/07/09
1083 session_shared: fix use of maintenance thread.
1085 Introduce 'start' method for filters and routers. It gets called after
1086 configure and after fork, but before processing. This changes API -
1087 from libmetaproxy2 to libmetaproxy3.
1089 --- 1.1.7 2010/06/30
1091 session_shared: ensure backend session is closed if init rejected
1094 z3950_client: fix NULL ptr reference that could occur if two clients
1095 connected concurrently and if max-sockets was in effect.
1097 --- 1.1.6 2010/06/21
1099 Fix bug 3497 - Metaproxy unstable while stopping.
1101 Fix bug 3495 - SEGV in SRU filter.
1103 --- 1.1.5 2010/06/15
1105 Filter multi throws diagnostic 'Present Out of Range' when
1106 appropriate - rather than returning 0 records.
1108 Filter virt_db: fix bad result reuse. Could happen if a result
1109 was overriden and a backend did not supported named result sets.
1111 --- 1.1.4 2010/05/11
1113 Filter log: category access logs diagnostics even if searchStatus
1114 or presentStatus is 'success'.
1116 --- 1.1.3 2010/04/21
1118 The SRU to Z39.50 filter does repeated Z39.50 present requests
1119 to fetch all records. Needed when a Z39.50 server returns partial
1120 results (due to message size limits).
1122 --- 1.1.2 2010/03/18
1124 Metaproxy now kills all child processes that are spawned by
1125 modules (in case of fork, exec).
1127 --- 1.1.1 2010/01/28
1129 Debian package now installs /etc/metaproxy/metaproxy.xml which
1130 includes all XML files /etc/metaproxy/filters-enabled .
1131 The include facility uses YAZ' yaz_xml_include_simple (YAZ 4.0.1).
1133 --- 1.1.0 2010/01/20
1135 Package based on YAZ version 4 and YAZ++ 1.2.0. It now includes a
1136 development package to facilitate 3rd party Metaproxy modules.
1138 --- 1.0.23 2010/01/04
1140 Filter virt_db: Close backend filter session when Init rejected is received
1141 from it (in which case it's not really closed yet). This will ensure we don't
1142 run out of resources such as FDs in this case.
1144 sru_z3950 filter: Accept any database (including those not listed).
1146 --- 1.0.22 2009/12/03
1148 Prepare for 64-bit YAZ. yazproxy will still work with YAZ++ 1.1.4 or
1149 later which means YAZ 3.0.47 or later.
1151 --- 1.0.20 2009/11/19
1153 For filter virt_db, the database is a glob pattern and the virtual
1154 database sections are consulted in the order given.
1156 --- 1.0.19 2009/07/08
1158 For filter multi, the target (for routing) may be given as a glob-pattern.
1160 More documentation for filters virt_db and multi.
1162 Update schema to allow for no database in sru_z3950 filter.
1164 --- 1.0.18 2009/06/30
1166 Added limit filter to put sleep (penalty) for heavy use.
1168 Filter frontend_net may be configured to limit the number of new connections
1169 from same IP to some value (connect-max).
1171 Fixed the load_balance filter.
1173 --- 1.0.17 2009/06/16
1175 Fix path for metaproxy executable for Debian init.d script.
1177 --- 1.0.16 2009/06/10
1179 SRU to Z39.50 filter honors x-username and x-password. If only
1180 x-username is given that translates to open authentication (Z39.50v2). If
1181 both x-username and x-password is present that translates to idPass
1182 authentication (Z39.50v3).
1184 New facility to change current working directory (-w).
1186 Update to upstream skeleton of init.d script. Should fix bug #2619.
1188 Filter session_shared now caches records (used to only cache connections
1191 Filter session_shared now invalidates a Z39.50 session if a server
1192 returns -1 hits. This facility was also part of yazproxy and gets around
1193 a bug in Voyager-based Z39.50 servers.
1195 --- 1.0.15 2008/11/18
1197 Fixed reference counting bug in Z39.50 client module (could cause SEGV).
1199 --- 1.0.14 2008/06/09
1201 Fixed the value of SRU record schema in searchRetrieve response. It was set
1202 to a fixed value of "dc" before.
1204 Serialize identical SRU requests. This is useful if HTTP client software
1205 fires identical requests against metaproxy.
1207 Allow Z39.50 target to be specified for SRU requests by using SRU extra
1208 parameter x-target. Allows SRU to contact arbitrary Z39.50 targets and
1209 avoid static configuration. This facility is handled by the sru_z3950 module
1210 and the z3950_client module.
1212 Allow maximum number of sockets to be used for a Z39.50 client by the
1213 use of SRU extra parameter x-max-sockets. This facility is handled by the
1214 sru_z3950 module and the z3950_client module.
1216 --- 1.0.13.1 2008/02/29
1218 Simplified check for Boost libraries.
1220 --- 1.0.13 2008/02/29
1222 First Debian package.
1224 The sru_z9350 filter now recognizes SRU parameter z-target as being
1225 a ZURL of the form host/database .
1227 Mergetype may be specified for filter 'multi'.
1229 --- 1.0.12 2007/09/19
1231 Fixed problem in Makefile WRT library specifictions. This could produce
1232 linker errors (when they should not happen).
1234 Fixed bug #1341: MetaProxy returning different results. Problem was that
1235 fix-up of record database did not normalize the database name.
1237 Documentation updates for Windows compilation.
1239 --- 1.0.11 2007/06/14
1241 Fixed problem with logfile being truncated.
1243 --- 1.0.10 2007/05/23
1245 Fixed bug #1136: Access rights not enforced.
1247 Extension for log module. The log category 'access' logs more details.
1248 New category 'user-access' added which is simlar to 'access' but adds
1249 the Z39.50 user as for all entries in a session.
1253 Added support for configurable default/force target/vhost for module Z39.50
1256 --- 1.0.8 2007/01/25
1258 Implemented filter, session_shared, which optimizes usage of Z39.50
1259 sessions and result sets.
1261 New filter, record_transform, which converts MARC/XML records.
1263 New filter, sru_z3950, which converts SRU to Z39.50 packages.
1265 New filter, load_balance, in development.
1267 New filter, zeerex_xplain.
1269 XML framework for config files started.
1271 Master RelaxNG Compact schema's are found in xml/schema/*.rnc,
1272 RelaxNG XML schemas and XML Schema's are generated from RNC syntax.
1273 XML config files are checked against RNG and XML Schema's.
1275 XSLT transformation framework added in xml/xslt/*.xsl, consisting mainly of
1276 LOC Marc21 stylesheets found at http://www.loc.gov/marcxml/xslt.
1277 Added stylesheet explain2cqlpqftxt.xsl which transforms a standard SRU ZeeReX
1278 explain record to YAZ CQL-to-PQF text config file.
1280 --- 1.0.7 2006/11/07
1282 Added 'timeout' setting for filter frontend_net which specifies the number
1283 of seconds a session is idle before it is closed. Default timeout is
1286 --- 1.0.6 2006/07/07
1288 Database name in records returned set for virt_db/multi filters.
1290 Filter session_shared now functional.
1292 Log filter can be configured to write to a given file using 'filename'
1293 element. Also information category can be specified with 'category'. If
1294 filename is omitted, the log filter writes to stdout. See etc/config5.xml
1297 --- 1.0.5 2006/05/16
1299 Fixed compilation on Windows.
1301 --- 1.0.4 2006/05/16
1303 Added documentation for the hidenavailable option for the multi filter.
1305 --- 1.0.3 2006/05/16
1307 Fixed bug #573: Hide errors for individual servers. If the element
1308 'hideunavailable' is given in the configuration, individual servers
1309 being unavailable are hidden (unless all are unavailable).
1311 Fixed bug #574: Database names are recognised case-sensitively.
1313 Fixed bug #567: Fix up database name in Name-Plus-Record.
1315 Fixed bug #568: Update win/makefile for VS 2005.
1317 Fixed bug #569: Some options throws unknown exception.
1319 --- 1.0.2 2006/04/28
1321 More information about virtual hosts. The 'etc' directory is part of the
1324 --- 1.0.1 2006/04/27
1326 Build instructions for Windows. NMake makefile part of distribution tar.
1328 --- 1.0.0 2006/04/24
1332 Filters functional: auth_simple, backend_test, frontend_net, http_file,
1333 log, multi, query_rewrite, template, virt_db, z3950_client.
1335 Filters in development: session_shared.
1337 Pseudo-filters: template, dl