3 query_rewrite: pass-thru non Type-1 queries MP-527
5 metaproxy stop (SIGTERM) kills all child processes spanwed by
6 filter (if any) before invoking filter destructors. MP-525
10 http_file: only supports HTTP GET MP-523
12 session_shared: shut down expire thread in destructor
13 This ensures that expire thread is not running after destruction
14 and does bad memory references, etc.
16 frontend_net: fix segfault on startup MP-524
17 Would happen if MP was listening on multiple ports and one
18 of the ports was already in use (and MP would exit).
20 frontend_net: fix memory leak MP-521
21 This leak would occur if all sessions were in use and the input
22 queue was cleared when a client would close connection (socket).
24 frontend_net: fix compilation on Windows (SIGUSR1 does not exist)
28 http_rewrite: use local skiplist; fixes memory corruption. MP-520
30 http_client: x-forwarded-for controls X-Forwarded-For presence
31 If x-forwarded-for setting (boolean) is enabled, http_client will
32 generate an X-Forwarded-For header entry which includes existing
33 X-Forwarded-For (if any) and current peer address (immediate client
34 of Metaproxy). By default x-forwarded-for disabled and X-Forwarded-For
35 will not be generated.
37 z3950_client: client_ip controls client-IP presence
38 If client_ip setting (boolean) is enabled, z3950_client will
39 generate a client_ip OID as part of init request which includes
40 previous client_ip (if any) and current peer address (immediate
41 client of Metaproxy). By default client_ip is disabled and client_ip
42 will not be generated.
44 HTTP X-Forwarded-For/Z39.50 Client-IP support
45 virt_db, multi: relays Z39.50 client-IP.
46 sru_z3950: converts X-Forwarded-For header to Z39.50 client-IP.
47 zoom: uses Client-IP or origin address (prefer Client-IP).
48 frontend_net: Strips tcp: from peer address (so that it is no longer
49 printed and stripped in zoom filter).
50 z3950_client: builds client-IP list - combining immediate peer address
51 as returned by COMSTACK and existing client-IP list (if avaiable).
52 The Origin only printes first X-Forwarded address.
56 Log when SIG{TERM,USR1} is received ASAP MP-513
57 Do it in frontend_net event loop rather than in place for metaproxy
58 main, which only exits when all sessions are terminated for SIGUSR1
61 metaproxy-config: quote some RHS values (that might include blanks)
63 Fix leak in sru_z3950 filter - when explain is returned MP-511
65 Allow stylesheet to be given for sru_z3950 filter MP-510
66 This is based on a patch by Sven Porst and the functionality
67 of the YAZ Generic Frontend Server.
69 Allow base attribute in configuration file tags - the attributes are
70 inserted by XInclude usage as mentioned on
71 yazlist: http://lists.indexdata.dk/pipermail/yazlist/2012-Au
72 and noted in a gist: https://gist.github.com/3551094
74 Package metaproxy provides virtual package metaproxy6 MP-508
75 This allows module packages to depend on a metaproxy server
78 Filter destructors called upon daemon termination MP-505
79 When metaproxy daemon receives SIGTERM the stop method of each filter
80 is called. The stop method existed before, but did not take any
81 arguements (void).. The frontend_net filter can now distinguish
82 between SIGUSR1 (stop bind, but keep sessions running) and SIGTERM
83 (stop immediately). Note that this changes the API+ABI of Metaproxy
86 zoom: sync up with Pazpar2 WRT authentication handling MP-492
88 Router: use shared_ptr rather than naked one - to avoid leak if an
89 exception is thrown in configure.
93 zoom: Add nocproxy=1 for contentConnector sessions MP-501
95 Doc: mention proper versions; fix link to Boost win binaries.
97 Windows: update for Boost 1.55
99 Windows: avoid warning when using boost::split. Done by defining
100 _SCL_SECURE_NO_WARNINGS for Visual Studio.
102 Fix LSB conformance for /etc/init.d/metaproxy MP-500
103 Debian: add support for /etc/init.d/metaproxy status
105 sort: Add const to Record less than operator in order to compile on
110 session_shared: fix element-set handling in record caching. MP-499
112 document http_rewrite. MP-468
114 http_write: Honor X-Metaproxy-SkipLink MP-479 . Filter understands and
115 respects the header (which will normally come from the cproxy filter)
119 RPM: fix dependency for libmetaproxy5-devel MP-496. The libmetaproxy5-devel
120 RPM was unsable in version 1.4.0.
122 Remove log message about "backend classes". Appeared in version 1.4.0.
126 Build RPM/Deb packages with YAZ 5 and yazpp 1.5. Metaproxy still compiles
127 with older version from source, but packages now use YAZ 5 that supports
130 sru_z3950: Fix SEGV for decoding invalid SRU requests
131 Incorrect reference to union (was explain response rather than
134 session_shared: match additionalSearchInfo (includes facets). In
135 layman's terms means that means that facets are properly handled
136 by this filter. Eg a change in requested facets will issue new
137 search and facets from exisiting result set are cached.
139 --- 1.3.62 2013/09/11
141 http_rewrite: better handling of <script> content in HTML parser. MP-486
143 http_rewrite: fix threading issue with regex. MP-482
145 bounce: don't use strdup for fixed length content. Error occurred in echo
148 session_shared: expire backend class when no instances left. This
149 means memory clean up, but not really a leak fix.
151 virt_db: fix leak for naked ptr.
153 cql_rpn: use config relative path for cql2rpn file. MP-481
155 Updates for upcoming YAZ 5.
157 --- 1.3.61 2013/08/29
159 New configuration directories ports.d/routes.d for metaproxy
160 configuration. This allows 3rd party packages to install config
161 for ports and new routes. MP-477
163 --- 1.3.60 2013/08/21
165 Fix metaproxy-config --libs to return non-mt over mt libs.
166 The -mt versions do not exist as shared objects and cause
167 linker errors for applications linking with Metaproxy.
168 Problem present in versions 1.3.56 - 1.3.59. MP-475
170 HTML: clean up char checks. Add ptr to HTML parse spec
172 HTML parser stops eating tag when <-char is met MP-473
174 rewrite: do not even compare content types, if we don't have any
175 the regex_match caused a segfault if we had no content-type in the
178 rewrite: within header=... matches only the header value
179 Used to match the whole header line, but we need to use
180 ^$ anchoring for host-relative regexps, and they need to
181 anchor at the ends of the value. MP-470.
183 rewrite: Ruleset functional MP-469
185 --- 1.3.59 2013/07/12
187 session_shared: negotiate init sz parameters.
188 By default, session_shared will honor the paramters given by client.
189 An alternative, but not implemented, algorithm would be to only
190 re-use sessions with same sz parameters. This however, could reduce
191 re-use of sessions a lot. Hence this, simple algorithm instead. The
192 negotiation to a maximum sz values can be enabled by using
193 <init maximum-record-size="sz1" preferred-message-size="sz2"/>
194 in configuration. This will make session_shared send those values
195 to backends and use returned init values in negotaition to
196 client before session_shared.
198 session_shared: resolve result-set references.
199 The reference is substitued with the query for old set if database
200 match and query type is Type-1. If not the reference will issue a
203 sort filter: relays RecordComposition including elementSet in use for
206 http_client: better diagnostics
208 http_client: disables HTTP redirect handling by default.
209 It can be configured with max-redirects in configuration.
211 --- 1.3.58 2013/06/12
213 Fix loading of filters cql_rpn and sru_z3950 . Was broken by 1.3.57.
215 --- 1.3.57 2013/06/12
217 Make RouterChain and RouterXML part of public API (libmetaproxy).
219 http_client: honor X-Metaproxy-Proxy as an alternative to
220 the "proxy" configuration. Allows proxy to be set per HTTP request.
222 sru_z3950: For SRU requests recognize x-client prefixes as a way
223 to ingest "database parameters".. The suffix of x-client- serves
224 as database argument name. Multiple may be given. For example:
225 http://path/db/?operation=searchRetrieve&x-client-user=a&x-client-password=b
226 is turned into Z39.50 database
229 --- 1.3.56 2013/05/27
231 New filter present_chunk. This filter allows splitting of present requests into smaller chunks.
233 New filter sd_remove, which replaces surrogate diagnostics with
234 SUTRS records. This filter tries to deal with clients that breaks
235 when receiving surrogate diagnostics.
237 new filter http_client. Same role as z3950_client, but just for
238 HTTP. Allows Metaproxy to operate as a HTTP proxy.
240 New filter http_rewrite1, which serves as purpose on how to rewrite
241 HTTP content with Metaproxy.
243 Use libboost-system if available, because newer versions of libboost-threads
244 requires libboost-system.
246 Allow frontend_net to serve SSL/HTTPS, because we can specify a server
249 --- 1.3.55 2013/04/10
251 zoom: Torus setting: authenticationMode which may hold values "basic"
254 --- 1.3.54 2013/03/27
256 configure: check for Libxslt support in YAZ and rely on definitions
257 from yaz-config, rather than doing own xslt/xml2 checks.
259 Allow timestamp format for log lines to be given with option -m
260 for metaproxy. Similar to yaz-ztest/GFS option -m.
262 Document log category 'line' for log filter.
264 Solr configuration example in etc/config-solr.xml
266 multi: do not mess with request package. For scan and search,
267 database-names were modified and the request package was left with
268 dangling pointers that caused a log filter to fail (request package
269 inspected after multi was invoked).
271 Documentation: fix id of metaproxy-config ref .
273 Documentation: update for USEMARCON support.
275 --- 1.3.53 2013/01/31
277 record_transform: allow OPACXML to OPAC conversion
279 zoom: document content-proxy
281 zoom: document db parm content-{user,password}, torus_url. Also
282 <torus auth_url="..> which makes zoom operate in authenticated mode
285 --- 1.3.52 2012/11/30
287 zoom: fix http://-check. SRU search broken in 1.3.51.
289 --- 1.3.51 2012/11/15
291 zoom: only append http:// for SRU if not already given . Makes it
292 possible to use https-URLs.
294 Use yazpp 1.4 or later due to new ABI.
296 frontend_net: allow max package size to be specified. Controlled by
297 attribute 'max_recv_bytes' of element 'port'.
299 --- 1.3.50 2012/10/29
301 For most generated diagnostics by filters, typically temporary
302 system error, augment addinfo message with filter name.
304 Add support for CentOS 6 packages.
306 sru_z3950: interpret Z39.50 diagnostics part of Init Response.
308 Add man page for metaproxy-config.
310 --- 1.3.49 2012/10/18
312 zoom: new config element passthru. This defines an element set that is
313 passed verbatim to the backend in pz2 mode.
315 auth_simple: allow both idPass and open auth. Also fix SEGV that could
318 --- 1.3.48 2012/10/08
320 z3950_client: fix string handling for init diagnostics in the case where
323 query_rewrite: no charset conversion for error queries. Avoid performing
324 charset conversion for query conversion errors. The resulting Type-1
325 query is invalid in this case.
327 --- 1.3.47 2012/10/04
329 For graceful stop (SIGUSR1), metaproxy will kill children processes.
331 Log when metaproxy is invoked in test mode (-t).
333 Log PID for each log message.
335 multi: combine both NSDs and multiple NSDs into one (diagnostics).
337 z3950_client: fixup multiple NSD's too. Like surrogate diagnostics,
338 a (backend=target) is appended for each diagnostic so that can be
339 determined the origin of error.
341 multi: hideerrors also in use for present response.
343 Solr example in zoom man page.
345 Fix typo in query_rewrite config example.
347 Log at least first non surrogate diagnostic. Instead of
348 "Z_Records_multipleNSD"
350 multi: Fix check for opt Records in present response. A SEGV could occur
351 if a target did not return records and no diagnostics.
353 --- 1.3.46 2012/09/24
355 Yet another fix for graceful stop.
357 --- 1.3.45 2012/09/12
359 sru_z3950: relay surrogate diagnostics.
361 --- 1.3.44 2012/09/10
363 zoom: Honor extraArgs, strip # in zurl.
365 multi: fix SEGV for scan. Reported by Rustam T. Usmanov.
367 zoom: url_recipe allow %{var[reg]} substitutions.
368 It's like ${var[reg]} but does URI component encoding as well.
370 --- 1.3.43 2012/08/22
372 RPM/Deb: require yazpp 1.3.2, because it fixes a missing close of
373 non-keepalive HTTP sessions.
375 http_file: allow zero size files (bug fix)
377 Fix zoom schema: auth_url is optional
379 --- 1.3.42 2012/08/20
381 zoom: fix un-init memory (could result in SEGV at session close)
383 frontend_net: handle X-Forwarded-For. This is stored in package.origin()
384 and may be used in filters as usual.
386 zoom: authentication via Torus lookup
387 Enabled by new configuration setting: auth_url . If this is defined,
388 the zoom module will contact Torus for auth/IP lookup and that will
389 define realm to be used in session.
391 --- 1.3.41 2012/08/10
393 virt_db: Fix database name - first character we removed by mistake.
394 Bug introduced in 1.3.40.
396 --- 1.3.40 2012/08/06
398 virt_db: Don't use "unix path" as database for Unix sockets.
400 --- 1.3.39 2012/08/02
402 z3950_client: Don't tamper with / in zurl - fixes problems
403 using Unix sockets for backends.
405 session_shared: fix integer overflow problem with hit count.
407 session_shared: avoid long usage of cached queries.
409 zoom: New database argument , torus_url to set URL of Torus
410 record to be fetched.
412 --- 1.3.38 2012/07/04
414 Fixes for 'metaproxy reload' for RPM/Debian packages.
416 zoom: Allow rpn2cql conversion to be augmented with a properties file.
417 Element rpn2cql can be specified per-target for the zoom filter.
419 log: New category "line" which is a single-line log message with
420 most important parts of a HTTP/Z39.50 request/response.
422 --- 1.3.37 2012/06/01
424 frontend_net: add facility to report live statistics about response
425 times and current thread usage. The report is an XML document
426 and is triggered for a specific URL path. This is set by <stat-req>
427 in the configuration of frontend_net. By default this report is
428 disabled (same as empty value for <stat-req>).
430 Fix reload problem in init.d script for RPM/Debian.
431 The '/etc/init.d/metaproxy reload' in some cases would stop but not
432 start metaproxy - effectively stopping the service.
434 Don't display start log message when config testing (-t).
436 zoom: avoid CCL message limit of 1K in ZOOM filter.
438 --- 1.3.36 2012/05/10
440 metaproxy init script reacts to reload which does graceful stop +
441 start and is used by logrorate script.
443 --- 1.3.35 2012/05/09
445 Fixes for Windows compilation.
447 Metaproxy daemon reacts to SIGUSR1 in which case it will leave
448 existing sessions running but terminate the monitor process that is
449 used in keepalive mode.
451 Change start log message to 'metaproxy start'. Was 'Metaproxy start'
452 before. Consistent with 'metaproxy stop' message.
454 zoom: document zoom's proxy_timeout
456 z3950_client: fixup addinfo for init response
458 virt_db: return other diagnostic if init is rejected. Diagnostic 236:
459 "Access to specified database denied" is returned, but only if init
460 response from backend does not carry diagnostics already.
462 multi: relays user info for first rejected target. The other-information
463 field for init response for first rejected target is in common init
464 response. This ensures that some backend init diagnostics are returned to
467 --- 1.3.34 2012/04/25
469 frontend_log: extend logging (when message is given in config).
471 --- 1.3.33 2012/04/25
473 zoom: Fix check for proxy. Use diagnostic 1074 for proxy failures.
475 --- 1.3.32 2012/04/24
477 sru_z3950 filter passes through incoming Z39.50 requests again. Was
478 not handled by mistake in Metaproxy versions 1.3.29, 1.3.30 and 1.3.31.
480 --- 1.3.31 2012/04/24
482 zoom: fixes for retry/proxy failover logic. More logging.
484 --- 1.3.30 2012/04/23
486 zoom: return addinfo="proxy failure" for proxy failures. This also
487 changes the scheme for dealing with proxies a bit. zoom now always
488 do proxy check, even if there's no failover. Fortunately, that's not
491 zoom: Init rejected wo diagnostics maps to Bib-1:1014.
492 Bib-1 1014, "Init/AC: Authentication System error", seems pretty
493 generic. We don't know why the init would fail; IP, user, block IP, etc.
494 sru_z3950 filter maps this to SRU diagnostic 3: "Authentication error".
496 zoom: guess if invalid SRU response was an auth failure
498 session_shared: disable session retry by default . Can be enabled by
499 restart="true" in resultset section.
501 --- 1.3.29 2012/04/18
503 zoom: may read cf-proxy's config settings.
504 This reduces manual configuration of the content proxy server host.
505 The ZOOM module will use the old style session.proxyhost if "server"
506 is given (deprecated) and use the new style proxyhost/session if
507 "config_file" is in use.
509 frontend_net: remove incoming requests that can not be handled
510 Requests in queue for filter frontend_net are removed if client
511 closes connection for the session and request is not yet handled.
513 sru_z3950: serialize requests. This is to ensure that pipelined
514 HTTP requests are handled properly.
516 --- 1.3.28 2012/04/04
518 New class, wrbuf, that wraps YAZ' WRBUF.
520 --- 1.3.27 2012/03/30
522 Metaproxy daemon is now running as user "metaproxy". This user is
523 managed by package maintainer scripts. The user information is stored
524 in /etc/metaproxy/metaproxy.user .
526 --- 1.3.26 2012/03/20
528 New filter, sort, that allows sorting of XML records via Z39.50
531 Filter record_transform: USEMarcon support. For example:
532 <retrieval syntax="usmarc">
533 <backend syntax="unimarc" name="F">
534 <usemarcon stage1="/etc/usemarcon/uni2us/uni2us.ini"/>
538 Filter multi: empty route pattern uses route as default.
540 <target route="z3950.indexdata.com">z3950.indexdata.com</route>
541 may use the shorter notation
542 <target route="z3950.indexdata.com"/>
544 Filter query_rewrite: use config path to locate XSLT.
546 Filter frontend_net: log statistics.
547 If a custom message element in frontend_net configuration it makes
548 the frontend_net filter produce a log entry whenever an operation
549 is completed. The log is always written using yaz_log with the
550 custom message given, the package ID (session ID) , the time
551 the operation has been active (end-to-end) , the threads currently
552 active/total and the size of the request input/output queues.
554 query_rewrite: charset conversion of query terms.
555 This is an optional feature. Enabled by element <charset> in
556 configuration with attribute 'from' and 'to' that specifies
557 from/to encodings. The default 'from' encoding is UTF-8.
559 Filter record_transform: honor piggyback searches.
561 Filter zoom: re-connect when database is reused.
562 Re-connect is necessary if a connection is lost or a timeout occurs.
563 If not, we'll be seeing zero hits, when we shouldn't.
565 --- 1.3.25 2012/02/29
567 zoom: Change scheme for dealing with content proxy URLs. The module
568 now has its own common XSL transform that is enabled by record_xsl
569 attribute in the configuration. This XSL gets parameter cproxyhost
570 that holds the host for the content proxy session . The genearted-url
571 is created only if urlRecipe is enabled. In previous version default
572 value of urlRecipe was ${md-electronic-url}; it is now empty and
573 disabled by default. Also generated-url no longer includes the content
574 proxy host. Content proxying URLs is supposed to the handle in the record_xsl
577 zoom: new setting timeout that specifies timeout for outgoing Z39.50/SRU
578 connections. Default value is 40 (seconds).
580 zoom: tune CCL to Z39.50 diagnostics mapping. Throw Bib-1: 108
581 "Malformed query" for syntax errors and related ones; throw
582 Bib-1: 3 "Unsupported search" for everything else. Details from
583 the CCL parser is provided as additional-info.
585 multi: new setting hideerrors that makes multi only relay diagnostics
586 to a client if all backends fail.
588 --- 1.3.24 2012/02/23
590 zoom: empty ccl_map field-mappings disables CCL map.
592 zoom: fix Explain search that could return error if session was
595 --- 1.3.23 2012/02/10
597 zoom: returns Explain records for database IR-Explain---1. The
598 target profile records are converted to Explain records via XSLT.
600 session_shared: make error recovery configurable. Whether a search
601 is restarted on errors or not, is configurable by attribute "restart"
602 in element "resultset" in configuration.
604 session_shared: only relay init for first request. session_shared, for
605 each backend class, now only relays first init request (rather than all).
606 The module only needs to save init response info once. This avoids the
607 need to check for session max.
609 --- 1.3.22 2012/02/02
611 zoom: fix memory leaks.
613 session_shared: maximum number of sessons is configurable. Default
614 value is 100. Result-sets for backends without named result sets are
615 only re-used if databases is identical for a search. This is under the
616 assumption that performance may suffer for those backends when
617 changing the database for each search.
619 multi: combines diagnostics from all backends. All diagnostics from
620 backends are combined into multiple non-surrogate diagnostics; rather
621 than just one diagnostic from first backend.
623 --- 1.3.21 2011/12/27
625 zoom: relay realm to cproxy parameter file.
627 Configuration: Allow filter collection element inside route. This
628 makes it possible to include multiple filters at once.
630 zoom: nocproxy also disables urlRecipe.
632 --- 1.3.20 2011/12/21
634 zoom: return diagnostic if CQL sortby conv fails. Diagnostic Bib-1 214
635 "Illegal sort relation" is returned. Gets translated to SRU diagnostic
636 90: "Unsupported direction value".
638 zoom: honor database argument nocproxy. This disables creating a content
639 connector session (for non-CF targets, usually) and also relays nocproxy
640 as database argument to a CF target.
642 --- 1.3.19 2011/12/16
644 zoom: Multiple proxy hosts may be given for proxy rich database
645 parameter. List is comma separated.
647 http_file: decodes URI paths properly. Does not return 404: not found
648 if no prefix are matches. Instead packages are passed on.
650 --- 1.3.18 2011/12/08
652 zoom: content-{user,password,proxy} are passed on to content proxy
653 system and takes precedence over user,password,proxy .
655 sru_z3950: SRU extra argument x-log-enable=1 enables a search response
656 with a log element including log material from children filters. At
657 this point, only the zoom filter uses this log facility. It will
658 eventually be used by other filters as well. In particular it might be
659 useful for this feature to track all filters in used during a search.
661 zoom: for x-log-enable=1, APDUs sent by ZOOM C, records as received
662 and queries as they are manipulated are logged.
664 zoom: extend addinfo with native diagnostics. Diagnostics as received
665 by ZOOM C are put into addinfo - including ZOOM, HTTP, SRU and Bib-1
666 diagnostics. This indicates both a backend diagnostic and the original
669 zoom: default urlRecipe value is ${md-electronic-url}
671 zoom: target profile setting sruVersion is recognized.
673 --- 1.3.17 2011/11/17
675 zoom: log target profile record fetched (AKA Torus).
677 --- 1.3.16 2011/11/17
679 Change target profile parameter CfSubDb to CfSubDB.
681 --- 1.3.15 2011/11/12
683 zoom: bug fix: realm was relayed to CF targets by mistake (realm only
684 makes sense to the zoom module itself).
686 --- 1.3.14 2011/11/11
688 zoom: realm may be given as part of database.
690 --- 1.3.13 2011/10/26
692 Fix Origin class assigment method; was removd by mistake in 1.3.12.
694 --- 1.3.12 2011/10/26
696 zoom: database args x-name=value are passed through to backend database.
698 SRU filter: user may specify session ID that is passed to log entries
699 that follows. It is specified by using x-session-id in the SRU arguments.
701 zoom: fix null pointer reference which would occur for bad url parameter
702 inside "torus" or if url was not given.
704 --- 1.3.11 2011/09/09
705 Fix bug in filter session_shared where sessions would not expire
706 properly (session ttl). This in turn could make the target close the
707 connection before expected and session_shared would return diagnostic
708 2: system temporarily available.
710 --- 1.3.10 2011/09/09
712 zoom: new target profile setting: sortmap_field. If sortmap_field is given
713 the field is mapped to the value for the sortmap. Values not matching
714 sortmap_field are passed verbatim.
716 zoom: new target profile setting: sortStrategy. One of: "z3950", "type7",
717 "cql", "sru11" or "embed". The "embed" chooses type-7 or CQL sortby
718 depending on whether RPN or CQL is actually sent to the target.
722 zoom: urlRecipe result is stored in <pz:metadata type="generated-url">.
724 zoom: For content proxy authentication is stored in param name
725 "auth", instead of "authentication".
729 zoom: relay schema in SRU mode. Previously recordSchema was not affected
734 zoom: new target profile element literalTransform that holds XSLT
735 (encoded as string) for target. Only if present and non-zero length it is
736 considered present. This takes precedence over transform.
738 Don't rely on trang anymore for Git checkout builds. Configuration in etc
739 will only be properly validated if trang is available. From now on only
740 relax NC files are bundled with the source dist.
742 Updates to check for Boost unit test (autoconf stuff). On MacOSX this
743 component was not detected when it should be.
747 z3950_client: mark non-surrogate diagnostics from backend.
749 zoom: a proxy may be specified for HTTP fetch of target profiles.
753 Honor piggyback. Makes some SRU targets behave that insist on
754 maximumRecords > 0, but also increases performance.
758 Fix dlpath in installed metaproxy.xml for RPM/Deb package. The
759 file was not update for libdir/metaproxy4 in version 1.3.2.
763 Change location of Metaproxy modules from libdir/metaproxy to
764 libdir/metaproxy4. Directory libdir/metaproxy is also owned by
765 libmetaproxy3 and, thus, should not be used by libmetaproxy4.
767 New facility to dump APDUs from zoom filter. Enabled by
768 <log apdu="true"/> in the zoom filter configuation.
770 zoom filter bug fix: SRU diagnostics received from backend was
771 not properly converted to Bib-1 diagnostics.
773 Package metaproxy depends on libmetaproxy4, same version.
777 zoom: fix a bug WRT passing authentication parameters to backends.
781 Fixes for windows Makefile.
783 --- 1.2.10 2011/07/25
785 Change major version of metaproxy library from 3 to 4. This in turn
786 makes new package names for Debian and RPM.
790 zoom: enable marc-8 encoding by default for usmarc and opac (in pz2
793 zoom: configurable element sets for record transforms.
795 zoom: the target profile based transform is specified by element_transform
796 in element torus of of the ZOOM filter configuration ; default value
797 is "pz2". Target profile based retrieval is specified by element_raw
798 in configuration. It will perform same steps, but omit the XSL transform.
799 Default value is "raw".
801 zoom: element set is omitted if not set in profile. But only if pz2
802 transform is in effect. Previously the default element set was to "F".
804 zoom: For non-CF targets database arguments are parsed. User may supply
805 db,user=myuser&password=mypass for non-CF targets. These values override
806 what's given the authentication from the target profile.
808 session_shared: fix reference to freed memory. Would occur if a search
809 response had non-surrogate diagnostics.
813 Route may be given for each port in frontend_net.
817 Documentation for zoom filter. Local target profiles may be specified.
819 Fixes for zoom filter.
823 First version with zoom filter.
827 Filter z3950_client may be configured to always send a close APDU
828 to backend target when connection/session is closed. This will only
829 happen if close APDU is not already sent. Enabled by configuration
830 for z3950_client (force_close).
832 Filter virt_db and multi: relay close APDU.
834 Filter virt_db and multi: relay init size parameters
835 preferredMessageSize and maximumRecordSize.
837 Filter sru_z3950: increase init sz parameters from 1MB to 10 MB.
841 RPM package for Metaproxy works for both SLES11 and Centos 5.5.
843 metaproxy-config: exec_prefix, libdir, includedir. Use these variables
844 as determined by configure.
846 RPM: Release includes 'indexdata' name. Use indexdata in release name so
847 this package can be distinguished from other vendors.
851 Fix filter multi: relay idAuthentication parameters.
855 Add metaproxy-config for returning compiler flags, libraries.
859 Fix --with-boost=PREFIX .
863 session_shared: fix use of maintenance thread.
865 Introduce 'start' method for filters and routers. It gets called after
866 configure and after fork, but before processing. This changes API -
867 from libmetaproxy2 to libmetaproxy3.
871 session_shared: ensure backend session is closed if init rejected
874 z3950_client: fix NULL ptr reference that could occur if two clients
875 connected concurrently and if max-sockets was in effect.
879 Fix bug 3497 - Metaproxy unstable while stopping.
881 Fix bug 3495 - SEGV in SRU filter.
885 Filter multi throws diagnostic 'Present Out of Range' when
886 appropriate - rather than returning 0 records.
888 Filter virt_db: fix bad result reuse. Could happen if a result
889 was overriden and a backend did not supported named result sets.
893 Filter log: category access logs diagnostics even if searchStatus
894 or presentStatus is 'success'.
898 The SRU to Z39.50 filter does repeated Z39.50 present requests
899 to fetch all records. Needed when a Z39.50 server returns partial
900 results (due to message size limits).
904 Metaproxy now kills all child processes that are spawned by
905 modules (in case of fork, exec).
909 Debian package now installs /etc/metaproxy/metaproxy.xml which
910 includes all XML files /etc/metaproxy/filters-enabled .
911 The include facility uses YAZ' yaz_xml_include_simple (YAZ 4.0.1).
915 Package based on YAZ version 4 and YAZ++ 1.2.0. It now includes a
916 development package to facilitate 3rd party Metaproxy modules.
918 --- 1.0.23 2010/01/04
920 Filter virt_db: Close backend filter session when Init rejected is received
921 from it (in which case it's not really closed yet). This will ensure we don't
922 run out of resources such as FDs in this case.
924 sru_z3950 filter: Accept any database (including those not listed).
926 --- 1.0.22 2009/12/03
928 Prepare for 64-bit YAZ. yazproxy will still work with YAZ++ 1.1.4 or
929 later which means YAZ 3.0.47 or later.
931 --- 1.0.20 2009/11/19
933 For filter virt_db, the database is a glob pattern and the virtual
934 database sections are consulted in the order given.
936 --- 1.0.19 2009/07/08
938 For filter multi, the target (for routing) may be given as a glob-pattern.
940 More documentation for filters virt_db and multi.
942 Update schema to allow for no database in sru_z3950 filter.
944 --- 1.0.18 2009/06/30
946 Added limit filter to put sleep (penalty) for heavy use.
948 Filter frontend_net may be configured to limit the number of new connections
949 from same IP to some value (connect-max).
951 Fixed the load_balance filter.
953 --- 1.0.17 2009/06/16
955 Fix path for metaproxy executable for Debian init.d script.
957 --- 1.0.16 2009/06/10
959 SRU to Z39.50 filter honors x-username and x-password. If only
960 x-username is given that translates to open authentication (Z39.50v2). If
961 both x-username and x-password is present that translates to idPass
962 authentication (Z39.50v3).
964 New facility to change current working directory (-w).
966 Update to upstream skeleton of init.d script. Should fix bug #2619.
968 Filter session_shared now caches records (used to only cache connections
971 Filter session_shared now invalidates a Z39.50 session if a server
972 returns -1 hits. This facility was also part of yazproxy and gets around
973 a bug in Voyager-based Z39.50 servers.
975 --- 1.0.15 2008/11/18
977 Fixed reference counting bug in Z39.50 client module (could cause SEGV).
979 --- 1.0.14 2008/06/09
981 Fixed the value of SRU record schema in searchRetrieve response. It was set
982 to a fixed value of "dc" before.
984 Serialize identical SRU requests. This is useful if HTTP client software
985 fires identical requests against metaproxy.
987 Allow Z39.50 target to be specified for SRU requests by using SRU extra
988 parameter x-target. Allows SRU to contact arbitrary Z39.50 targets and
989 avoid static configuration. This facility is handled by the sru_z3950 module
990 and the z3950_client module.
992 Allow maximum number of sockets to be used for a Z39.50 client by the
993 use of SRU extra parameter x-max-sockets. This facility is handled by the
994 sru_z3950 module and the z3950_client module.
996 --- 1.0.13.1 2008/02/29
998 Simplified check for Boost libraries.
1000 --- 1.0.13 2008/02/29
1002 First Debian package.
1004 The sru_z9350 filter now recognizes SRU parameter z-target as being
1005 a ZURL of the form host/database .
1007 Mergetype may be specified for filter 'multi'.
1009 --- 1.0.12 2007/09/19
1011 Fixed problem in Makefile WRT library specifictions. This could produce
1012 linker errors (when they should not happen).
1014 Fixed bug #1341: MetaProxy returning different results. Problem was that
1015 fix-up of record database did not normalize the database name.
1017 Documentation updates for Windows compilation.
1019 --- 1.0.11 2007/06/14
1021 Fixed problem with logfile being truncated.
1023 --- 1.0.10 2007/05/23
1025 Fixed bug #1136: Access rights not enforced.
1027 Extension for log module. The log category 'access' logs more details.
1028 New category 'user-access' added which is simlar to 'access' but adds
1029 the Z39.50 user as for all entries in a session.
1033 Added support for configurable default/force target/vhost for module Z39.50
1036 --- 1.0.8 2007/01/25
1038 Implemented filter, session_shared, which optimizes usage of Z39.50
1039 sessions and result sets.
1041 New filter, record_transform, which converts MARC/XML records.
1043 New filter, sru_z3950, which converts SRU to Z39.50 packages.
1045 New filter, load_balance, in development.
1047 New filter, zeerex_xplain.
1049 XML framework for config files started.
1051 Master RelaxNG Compact schema's are found in xml/schema/*.rnc,
1052 RelaxNG XML schemas and XML Schema's are generated from RNC syntax.
1053 XML config files are checked against RNG and XML Schema's.
1055 XSLT transformation framework added in xml/xslt/*.xsl, consisting mainly of
1056 LOC Marc21 stylesheets found at http://www.loc.gov/marcxml/xslt.
1057 Added stylesheet explain2cqlpqftxt.xsl which transforms a standard SRU ZeeReX
1058 explain record to YAZ CQL-to-PQF text config file.
1060 --- 1.0.7 2006/11/07
1062 Added 'timeout' setting for filter frontend_net which specifies the number
1063 of seconds a session is idle before it is closed. Default timeout is
1066 --- 1.0.6 2006/07/07
1068 Database name in records returned set for virt_db/multi filters.
1070 Filter session_shared now functional.
1072 Log filter can be configured to write to a given file using 'filename'
1073 element. Also information category can be specified with 'category'. If
1074 filename is omitted, the log filter writes to stdout. See etc/config5.xml
1077 --- 1.0.5 2006/05/16
1079 Fixed compilation on Windows.
1081 --- 1.0.4 2006/05/16
1083 Added documentation for the hidenavailable option for the multi filter.
1085 --- 1.0.3 2006/05/16
1087 Fixed bug #573: Hide errors for individual servers. If the element
1088 'hideunavailable' is given in the configuration, individual servers
1089 being unavailable are hidden (unless all are unavailable).
1091 Fixed bug #574: Database names are recognised case-sensitively.
1093 Fixed bug #567: Fix up database name in Name-Plus-Record.
1095 Fixed bug #568: Update win/makefile for VS 2005.
1097 Fixed bug #569: Some options throws unknown exception.
1099 --- 1.0.2 2006/04/28
1101 More information about virtual hosts. The 'etc' directory is part of the
1104 --- 1.0.1 2006/04/27
1106 Build instructions for Windows. NMake makefile part of distribution tar.
1108 --- 1.0.0 2006/04/24
1112 Filters functional: auth_simple, backend_test, frontend_net, http_file,
1113 log, multi, query_rewrite, template, virt_db, z3950_client.
1115 Filters in development: session_shared.
1117 Pseudo-filters: template, dl