3 On SIGTERM shut down connection+listening sockets MP-568
4 This fixes a problem with 'metaproxy stop' sometimes taking a long time.
8 zoom: make retry on failure configurable MP-565
9 The default and existing behavior is that backend failures (any
10 diagnostic) makes the module re-search once. The behavior may
11 be changed by db parameter 'retry'. If given value '0' disables
12 retry and '1' enables it. If not given, the Torus record may
13 specify with element retryOnFailure (value '0'/'1').
17 Fix race condition in SIGTERM handling. Could terminate whole metaproxy
18 instead of just a child process. Extremely rare in real life, hit me with
19 CF stress testing. MP-559.
23 http_file: passthru option MP-557
24 New facility for http_file to passthru - even if an area is matched. The
25 default behavior (passthru=false) is to return 404: Not found. With
26 passthru=false, next filter is consulted.
30 Fix ref to freed memory in log filter 1line - MP-556
32 echoedSearchRetrieveRequest support MP-555
36 zoom: allow hostname to be given for ipauth MP-552
37 The Torus setting for that is called auth_hostname.
41 zoom: IP auth use field "ipRanges" rather than "ip" MP-551
45 session_shared: close in ~BackendInstance MP-549
46 This fixes a serious issue where some MP would leak sockets.
48 session_shared: mutex lock in BackendClass::release_backend MP-550
49 Fixes a SEGV that could occur (in rare cases).
53 zoom: Do not include ZOOM C's fake surrogate diag recs MP-547
55 zoom: fix invalid present response in some cases MP-546
57 zoom: Relay Torus HTTP error message
61 Check for proper limits before using RecordCache functions MP-544
65 Build packages for Ubuntu Trusty Tahr 14.04 LTS
67 sort: crash / invalid_read in filter sort MP-541
69 sru_z3950: facet should be stored in additionalSearchInfo MP-533
71 doc: fix missing man pages MP-542
73 cql_rpn: fix threading problem with CQL to RPN conversion MP-497
75 cql_rpn: allow conversion from RPN to CQL (reverse) MP-537
79 sru_z3950: fix facet response (memory corruption) MP-532
81 log: fix crash idPass user is omitted MP-530
85 query_rewrite: pass-thru non Type-1 queries MP-527
87 metaproxy stop (SIGTERM) kills all child processes spanwed by
88 filter (if any) before invoking filter destructors. MP-525
92 http_file: only supports HTTP GET MP-523
94 session_shared: shut down expire thread in destructor
95 This ensures that expire thread is not running after destruction
96 and does bad memory references, etc.
98 frontend_net: fix segfault on startup MP-524
99 Would happen if MP was listening on multiple ports and one
100 of the ports was already in use (and MP would exit).
102 frontend_net: fix memory leak MP-521
103 This leak would occur if all sessions were in use and the input
104 queue was cleared when a client would close connection (socket).
106 frontend_net: fix compilation on Windows (SIGUSR1 does not exist)
110 http_rewrite: use local skiplist; fixes memory corruption. MP-520
112 http_client: x-forwarded-for controls X-Forwarded-For presence
113 If x-forwarded-for setting (boolean) is enabled, http_client will
114 generate an X-Forwarded-For header entry which includes existing
115 X-Forwarded-For (if any) and current peer address (immediate client
116 of Metaproxy). By default x-forwarded-for disabled and X-Forwarded-For
117 will not be generated.
119 z3950_client: client_ip controls client-IP presence
120 If client_ip setting (boolean) is enabled, z3950_client will
121 generate a client_ip OID as part of init request which includes
122 previous client_ip (if any) and current peer address (immediate
123 client of Metaproxy). By default client_ip is disabled and client_ip
124 will not be generated.
126 HTTP X-Forwarded-For/Z39.50 Client-IP support
127 virt_db, multi: relays Z39.50 client-IP.
128 sru_z3950: converts X-Forwarded-For header to Z39.50 client-IP.
129 zoom: uses Client-IP or origin address (prefer Client-IP).
130 frontend_net: Strips tcp: from peer address (so that it is no longer
131 printed and stripped in zoom filter).
132 z3950_client: builds client-IP list - combining immediate peer address
133 as returned by COMSTACK and existing client-IP list (if avaiable).
134 The Origin only printes first X-Forwarded address.
138 Log when SIG{TERM,USR1} is received ASAP MP-513
139 Do it in frontend_net event loop rather than in place for metaproxy
140 main, which only exits when all sessions are terminated for SIGUSR1
143 metaproxy-config: quote some RHS values (that might include blanks)
145 Fix leak in sru_z3950 filter - when explain is returned MP-511
147 Allow stylesheet to be given for sru_z3950 filter MP-510
148 This is based on a patch by Sven Porst and the functionality
149 of the YAZ Generic Frontend Server.
151 Allow base attribute in configuration file tags - the attributes are
152 inserted by XInclude usage as mentioned on
153 yazlist: http://lists.indexdata.dk/pipermail/yazlist/2012-Au
154 and noted in a gist: https://gist.github.com/3551094
156 Package metaproxy provides virtual package metaproxy6 MP-508
157 This allows module packages to depend on a metaproxy server
160 Filter destructors called upon daemon termination MP-505
161 When metaproxy daemon receives SIGTERM the stop method of each filter
162 is called. The stop method existed before, but did not take any
163 arguements (void).. The frontend_net filter can now distinguish
164 between SIGUSR1 (stop bind, but keep sessions running) and SIGTERM
165 (stop immediately). Note that this changes the API+ABI of Metaproxy
168 zoom: sync up with Pazpar2 WRT authentication handling MP-492
170 Router: use shared_ptr rather than naked one - to avoid leak if an
171 exception is thrown in configure.
175 zoom: Add nocproxy=1 for contentConnector sessions MP-501
177 Doc: mention proper versions; fix link to Boost win binaries.
179 Windows: update for Boost 1.55
181 Windows: avoid warning when using boost::split. Done by defining
182 _SCL_SECURE_NO_WARNINGS for Visual Studio.
184 Fix LSB conformance for /etc/init.d/metaproxy MP-500
185 Debian: add support for /etc/init.d/metaproxy status
187 sort: Add const to Record less than operator in order to compile on
192 session_shared: fix element-set handling in record caching. MP-499
194 document http_rewrite. MP-468
196 http_write: Honor X-Metaproxy-SkipLink MP-479 . Filter understands and
197 respects the header (which will normally come from the cproxy filter)
201 RPM: fix dependency for libmetaproxy5-devel MP-496. The libmetaproxy5-devel
202 RPM was unsable in version 1.4.0.
204 Remove log message about "backend classes". Appeared in version 1.4.0.
208 Build RPM/Deb packages with YAZ 5 and yazpp 1.5. Metaproxy still compiles
209 with older version from source, but packages now use YAZ 5 that supports
212 sru_z3950: Fix SEGV for decoding invalid SRU requests
213 Incorrect reference to union (was explain response rather than
216 session_shared: match additionalSearchInfo (includes facets). In
217 layman's terms means that means that facets are properly handled
218 by this filter. Eg a change in requested facets will issue new
219 search and facets from exisiting result set are cached.
221 --- 1.3.62 2013/09/11
223 http_rewrite: better handling of <script> content in HTML parser. MP-486
225 http_rewrite: fix threading issue with regex. MP-482
227 bounce: don't use strdup for fixed length content. Error occurred in echo
230 session_shared: expire backend class when no instances left. This
231 means memory clean up, but not really a leak fix.
233 virt_db: fix leak for naked ptr.
235 cql_rpn: use config relative path for cql2rpn file. MP-481
237 Updates for upcoming YAZ 5.
239 --- 1.3.61 2013/08/29
241 New configuration directories ports.d/routes.d for metaproxy
242 configuration. This allows 3rd party packages to install config
243 for ports and new routes. MP-477
245 --- 1.3.60 2013/08/21
247 Fix metaproxy-config --libs to return non-mt over mt libs.
248 The -mt versions do not exist as shared objects and cause
249 linker errors for applications linking with Metaproxy.
250 Problem present in versions 1.3.56 - 1.3.59. MP-475
252 HTML: clean up char checks. Add ptr to HTML parse spec
254 HTML parser stops eating tag when <-char is met MP-473
256 rewrite: do not even compare content types, if we don't have any
257 the regex_match caused a segfault if we had no content-type in the
260 rewrite: within header=... matches only the header value
261 Used to match the whole header line, but we need to use
262 ^$ anchoring for host-relative regexps, and they need to
263 anchor at the ends of the value. MP-470.
265 rewrite: Ruleset functional MP-469
267 --- 1.3.59 2013/07/12
269 session_shared: negotiate init sz parameters.
270 By default, session_shared will honor the paramters given by client.
271 An alternative, but not implemented, algorithm would be to only
272 re-use sessions with same sz parameters. This however, could reduce
273 re-use of sessions a lot. Hence this, simple algorithm instead. The
274 negotiation to a maximum sz values can be enabled by using
275 <init maximum-record-size="sz1" preferred-message-size="sz2"/>
276 in configuration. This will make session_shared send those values
277 to backends and use returned init values in negotaition to
278 client before session_shared.
280 session_shared: resolve result-set references.
281 The reference is substitued with the query for old set if database
282 match and query type is Type-1. If not the reference will issue a
285 sort filter: relays RecordComposition including elementSet in use for
288 http_client: better diagnostics
290 http_client: disables HTTP redirect handling by default.
291 It can be configured with max-redirects in configuration.
293 --- 1.3.58 2013/06/12
295 Fix loading of filters cql_rpn and sru_z3950 . Was broken by 1.3.57.
297 --- 1.3.57 2013/06/12
299 Make RouterChain and RouterXML part of public API (libmetaproxy).
301 http_client: honor X-Metaproxy-Proxy as an alternative to
302 the "proxy" configuration. Allows proxy to be set per HTTP request.
304 sru_z3950: For SRU requests recognize x-client prefixes as a way
305 to ingest "database parameters".. The suffix of x-client- serves
306 as database argument name. Multiple may be given. For example:
307 http://path/db/?operation=searchRetrieve&x-client-user=a&x-client-password=b
308 is turned into Z39.50 database
311 --- 1.3.56 2013/05/27
313 New filter present_chunk. This filter allows splitting of present requests into smaller chunks.
315 New filter sd_remove, which replaces surrogate diagnostics with
316 SUTRS records. This filter tries to deal with clients that breaks
317 when receiving surrogate diagnostics.
319 new filter http_client. Same role as z3950_client, but just for
320 HTTP. Allows Metaproxy to operate as a HTTP proxy.
322 New filter http_rewrite1, which serves as purpose on how to rewrite
323 HTTP content with Metaproxy.
325 Use libboost-system if available, because newer versions of libboost-threads
326 requires libboost-system.
328 Allow frontend_net to serve SSL/HTTPS, because we can specify a server
331 --- 1.3.55 2013/04/10
333 zoom: Torus setting: authenticationMode which may hold values "basic"
336 --- 1.3.54 2013/03/27
338 configure: check for Libxslt support in YAZ and rely on definitions
339 from yaz-config, rather than doing own xslt/xml2 checks.
341 Allow timestamp format for log lines to be given with option -m
342 for metaproxy. Similar to yaz-ztest/GFS option -m.
344 Document log category 'line' for log filter.
346 Solr configuration example in etc/config-solr.xml
348 multi: do not mess with request package. For scan and search,
349 database-names were modified and the request package was left with
350 dangling pointers that caused a log filter to fail (request package
351 inspected after multi was invoked).
353 Documentation: fix id of metaproxy-config ref .
355 Documentation: update for USEMARCON support.
357 --- 1.3.53 2013/01/31
359 record_transform: allow OPACXML to OPAC conversion
361 zoom: document content-proxy
363 zoom: document db parm content-{user,password}, torus_url. Also
364 <torus auth_url="..> which makes zoom operate in authenticated mode
367 --- 1.3.52 2012/11/30
369 zoom: fix http://-check. SRU search broken in 1.3.51.
371 --- 1.3.51 2012/11/15
373 zoom: only append http:// for SRU if not already given . Makes it
374 possible to use https-URLs.
376 Use yazpp 1.4 or later due to new ABI.
378 frontend_net: allow max package size to be specified. Controlled by
379 attribute 'max_recv_bytes' of element 'port'.
381 --- 1.3.50 2012/10/29
383 For most generated diagnostics by filters, typically temporary
384 system error, augment addinfo message with filter name.
386 Add support for CentOS 6 packages.
388 sru_z3950: interpret Z39.50 diagnostics part of Init Response.
390 Add man page for metaproxy-config.
392 --- 1.3.49 2012/10/18
394 zoom: new config element passthru. This defines an element set that is
395 passed verbatim to the backend in pz2 mode.
397 auth_simple: allow both idPass and open auth. Also fix SEGV that could
400 --- 1.3.48 2012/10/08
402 z3950_client: fix string handling for init diagnostics in the case where
405 query_rewrite: no charset conversion for error queries. Avoid performing
406 charset conversion for query conversion errors. The resulting Type-1
407 query is invalid in this case.
409 --- 1.3.47 2012/10/04
411 For graceful stop (SIGUSR1), metaproxy will kill children processes.
413 Log when metaproxy is invoked in test mode (-t).
415 Log PID for each log message.
417 multi: combine both NSDs and multiple NSDs into one (diagnostics).
419 z3950_client: fixup multiple NSD's too. Like surrogate diagnostics,
420 a (backend=target) is appended for each diagnostic so that can be
421 determined the origin of error.
423 multi: hideerrors also in use for present response.
425 Solr example in zoom man page.
427 Fix typo in query_rewrite config example.
429 Log at least first non surrogate diagnostic. Instead of
430 "Z_Records_multipleNSD"
432 multi: Fix check for opt Records in present response. A SEGV could occur
433 if a target did not return records and no diagnostics.
435 --- 1.3.46 2012/09/24
437 Yet another fix for graceful stop.
439 --- 1.3.45 2012/09/12
441 sru_z3950: relay surrogate diagnostics.
443 --- 1.3.44 2012/09/10
445 zoom: Honor extraArgs, strip # in zurl.
447 multi: fix SEGV for scan. Reported by Rustam T. Usmanov.
449 zoom: url_recipe allow %{var[reg]} substitutions.
450 It's like ${var[reg]} but does URI component encoding as well.
452 --- 1.3.43 2012/08/22
454 RPM/Deb: require yazpp 1.3.2, because it fixes a missing close of
455 non-keepalive HTTP sessions.
457 http_file: allow zero size files (bug fix)
459 Fix zoom schema: auth_url is optional
461 --- 1.3.42 2012/08/20
463 zoom: fix un-init memory (could result in SEGV at session close)
465 frontend_net: handle X-Forwarded-For. This is stored in package.origin()
466 and may be used in filters as usual.
468 zoom: authentication via Torus lookup
469 Enabled by new configuration setting: auth_url . If this is defined,
470 the zoom module will contact Torus for auth/IP lookup and that will
471 define realm to be used in session.
473 --- 1.3.41 2012/08/10
475 virt_db: Fix database name - first character we removed by mistake.
476 Bug introduced in 1.3.40.
478 --- 1.3.40 2012/08/06
480 virt_db: Don't use "unix path" as database for Unix sockets.
482 --- 1.3.39 2012/08/02
484 z3950_client: Don't tamper with / in zurl - fixes problems
485 using Unix sockets for backends.
487 session_shared: fix integer overflow problem with hit count.
489 session_shared: avoid long usage of cached queries.
491 zoom: New database argument , torus_url to set URL of Torus
492 record to be fetched.
494 --- 1.3.38 2012/07/04
496 Fixes for 'metaproxy reload' for RPM/Debian packages.
498 zoom: Allow rpn2cql conversion to be augmented with a properties file.
499 Element rpn2cql can be specified per-target for the zoom filter.
501 log: New category "line" which is a single-line log message with
502 most important parts of a HTTP/Z39.50 request/response.
504 --- 1.3.37 2012/06/01
506 frontend_net: add facility to report live statistics about response
507 times and current thread usage. The report is an XML document
508 and is triggered for a specific URL path. This is set by <stat-req>
509 in the configuration of frontend_net. By default this report is
510 disabled (same as empty value for <stat-req>).
512 Fix reload problem in init.d script for RPM/Debian.
513 The '/etc/init.d/metaproxy reload' in some cases would stop but not
514 start metaproxy - effectively stopping the service.
516 Don't display start log message when config testing (-t).
518 zoom: avoid CCL message limit of 1K in ZOOM filter.
520 --- 1.3.36 2012/05/10
522 metaproxy init script reacts to reload which does graceful stop +
523 start and is used by logrorate script.
525 --- 1.3.35 2012/05/09
527 Fixes for Windows compilation.
529 Metaproxy daemon reacts to SIGUSR1 in which case it will leave
530 existing sessions running but terminate the monitor process that is
531 used in keepalive mode.
533 Change start log message to 'metaproxy start'. Was 'Metaproxy start'
534 before. Consistent with 'metaproxy stop' message.
536 zoom: document zoom's proxy_timeout
538 z3950_client: fixup addinfo for init response
540 virt_db: return other diagnostic if init is rejected. Diagnostic 236:
541 "Access to specified database denied" is returned, but only if init
542 response from backend does not carry diagnostics already.
544 multi: relays user info for first rejected target. The other-information
545 field for init response for first rejected target is in common init
546 response. This ensures that some backend init diagnostics are returned to
549 --- 1.3.34 2012/04/25
551 frontend_log: extend logging (when message is given in config).
553 --- 1.3.33 2012/04/25
555 zoom: Fix check for proxy. Use diagnostic 1074 for proxy failures.
557 --- 1.3.32 2012/04/24
559 sru_z3950 filter passes through incoming Z39.50 requests again. Was
560 not handled by mistake in Metaproxy versions 1.3.29, 1.3.30 and 1.3.31.
562 --- 1.3.31 2012/04/24
564 zoom: fixes for retry/proxy failover logic. More logging.
566 --- 1.3.30 2012/04/23
568 zoom: return addinfo="proxy failure" for proxy failures. This also
569 changes the scheme for dealing with proxies a bit. zoom now always
570 do proxy check, even if there's no failover. Fortunately, that's not
573 zoom: Init rejected wo diagnostics maps to Bib-1:1014.
574 Bib-1 1014, "Init/AC: Authentication System error", seems pretty
575 generic. We don't know why the init would fail; IP, user, block IP, etc.
576 sru_z3950 filter maps this to SRU diagnostic 3: "Authentication error".
578 zoom: guess if invalid SRU response was an auth failure
580 session_shared: disable session retry by default . Can be enabled by
581 restart="true" in resultset section.
583 --- 1.3.29 2012/04/18
585 zoom: may read cf-proxy's config settings.
586 This reduces manual configuration of the content proxy server host.
587 The ZOOM module will use the old style session.proxyhost if "server"
588 is given (deprecated) and use the new style proxyhost/session if
589 "config_file" is in use.
591 frontend_net: remove incoming requests that can not be handled
592 Requests in queue for filter frontend_net are removed if client
593 closes connection for the session and request is not yet handled.
595 sru_z3950: serialize requests. This is to ensure that pipelined
596 HTTP requests are handled properly.
598 --- 1.3.28 2012/04/04
600 New class, wrbuf, that wraps YAZ' WRBUF.
602 --- 1.3.27 2012/03/30
604 Metaproxy daemon is now running as user "metaproxy". This user is
605 managed by package maintainer scripts. The user information is stored
606 in /etc/metaproxy/metaproxy.user .
608 --- 1.3.26 2012/03/20
610 New filter, sort, that allows sorting of XML records via Z39.50
613 Filter record_transform: USEMarcon support. For example:
614 <retrieval syntax="usmarc">
615 <backend syntax="unimarc" name="F">
616 <usemarcon stage1="/etc/usemarcon/uni2us/uni2us.ini"/>
620 Filter multi: empty route pattern uses route as default.
622 <target route="z3950.indexdata.com">z3950.indexdata.com</route>
623 may use the shorter notation
624 <target route="z3950.indexdata.com"/>
626 Filter query_rewrite: use config path to locate XSLT.
628 Filter frontend_net: log statistics.
629 If a custom message element in frontend_net configuration it makes
630 the frontend_net filter produce a log entry whenever an operation
631 is completed. The log is always written using yaz_log with the
632 custom message given, the package ID (session ID) , the time
633 the operation has been active (end-to-end) , the threads currently
634 active/total and the size of the request input/output queues.
636 query_rewrite: charset conversion of query terms.
637 This is an optional feature. Enabled by element <charset> in
638 configuration with attribute 'from' and 'to' that specifies
639 from/to encodings. The default 'from' encoding is UTF-8.
641 Filter record_transform: honor piggyback searches.
643 Filter zoom: re-connect when database is reused.
644 Re-connect is necessary if a connection is lost or a timeout occurs.
645 If not, we'll be seeing zero hits, when we shouldn't.
647 --- 1.3.25 2012/02/29
649 zoom: Change scheme for dealing with content proxy URLs. The module
650 now has its own common XSL transform that is enabled by record_xsl
651 attribute in the configuration. This XSL gets parameter cproxyhost
652 that holds the host for the content proxy session . The genearted-url
653 is created only if urlRecipe is enabled. In previous version default
654 value of urlRecipe was ${md-electronic-url}; it is now empty and
655 disabled by default. Also generated-url no longer includes the content
656 proxy host. Content proxying URLs is supposed to the handle in the record_xsl
659 zoom: new setting timeout that specifies timeout for outgoing Z39.50/SRU
660 connections. Default value is 40 (seconds).
662 zoom: tune CCL to Z39.50 diagnostics mapping. Throw Bib-1: 108
663 "Malformed query" for syntax errors and related ones; throw
664 Bib-1: 3 "Unsupported search" for everything else. Details from
665 the CCL parser is provided as additional-info.
667 multi: new setting hideerrors that makes multi only relay diagnostics
668 to a client if all backends fail.
670 --- 1.3.24 2012/02/23
672 zoom: empty ccl_map field-mappings disables CCL map.
674 zoom: fix Explain search that could return error if session was
677 --- 1.3.23 2012/02/10
679 zoom: returns Explain records for database IR-Explain---1. The
680 target profile records are converted to Explain records via XSLT.
682 session_shared: make error recovery configurable. Whether a search
683 is restarted on errors or not, is configurable by attribute "restart"
684 in element "resultset" in configuration.
686 session_shared: only relay init for first request. session_shared, for
687 each backend class, now only relays first init request (rather than all).
688 The module only needs to save init response info once. This avoids the
689 need to check for session max.
691 --- 1.3.22 2012/02/02
693 zoom: fix memory leaks.
695 session_shared: maximum number of sessons is configurable. Default
696 value is 100. Result-sets for backends without named result sets are
697 only re-used if databases is identical for a search. This is under the
698 assumption that performance may suffer for those backends when
699 changing the database for each search.
701 multi: combines diagnostics from all backends. All diagnostics from
702 backends are combined into multiple non-surrogate diagnostics; rather
703 than just one diagnostic from first backend.
705 --- 1.3.21 2011/12/27
707 zoom: relay realm to cproxy parameter file.
709 Configuration: Allow filter collection element inside route. This
710 makes it possible to include multiple filters at once.
712 zoom: nocproxy also disables urlRecipe.
714 --- 1.3.20 2011/12/21
716 zoom: return diagnostic if CQL sortby conv fails. Diagnostic Bib-1 214
717 "Illegal sort relation" is returned. Gets translated to SRU diagnostic
718 90: "Unsupported direction value".
720 zoom: honor database argument nocproxy. This disables creating a content
721 connector session (for non-CF targets, usually) and also relays nocproxy
722 as database argument to a CF target.
724 --- 1.3.19 2011/12/16
726 zoom: Multiple proxy hosts may be given for proxy rich database
727 parameter. List is comma separated.
729 http_file: decodes URI paths properly. Does not return 404: not found
730 if no prefix are matches. Instead packages are passed on.
732 --- 1.3.18 2011/12/08
734 zoom: content-{user,password,proxy} are passed on to content proxy
735 system and takes precedence over user,password,proxy .
737 sru_z3950: SRU extra argument x-log-enable=1 enables a search response
738 with a log element including log material from children filters. At
739 this point, only the zoom filter uses this log facility. It will
740 eventually be used by other filters as well. In particular it might be
741 useful for this feature to track all filters in used during a search.
743 zoom: for x-log-enable=1, APDUs sent by ZOOM C, records as received
744 and queries as they are manipulated are logged.
746 zoom: extend addinfo with native diagnostics. Diagnostics as received
747 by ZOOM C are put into addinfo - including ZOOM, HTTP, SRU and Bib-1
748 diagnostics. This indicates both a backend diagnostic and the original
751 zoom: default urlRecipe value is ${md-electronic-url}
753 zoom: target profile setting sruVersion is recognized.
755 --- 1.3.17 2011/11/17
757 zoom: log target profile record fetched (AKA Torus).
759 --- 1.3.16 2011/11/17
761 Change target profile parameter CfSubDb to CfSubDB.
763 --- 1.3.15 2011/11/12
765 zoom: bug fix: realm was relayed to CF targets by mistake (realm only
766 makes sense to the zoom module itself).
768 --- 1.3.14 2011/11/11
770 zoom: realm may be given as part of database.
772 --- 1.3.13 2011/10/26
774 Fix Origin class assigment method; was removd by mistake in 1.3.12.
776 --- 1.3.12 2011/10/26
778 zoom: database args x-name=value are passed through to backend database.
780 SRU filter: user may specify session ID that is passed to log entries
781 that follows. It is specified by using x-session-id in the SRU arguments.
783 zoom: fix null pointer reference which would occur for bad url parameter
784 inside "torus" or if url was not given.
786 --- 1.3.11 2011/09/09
787 Fix bug in filter session_shared where sessions would not expire
788 properly (session ttl). This in turn could make the target close the
789 connection before expected and session_shared would return diagnostic
790 2: system temporarily available.
792 --- 1.3.10 2011/09/09
794 zoom: new target profile setting: sortmap_field. If sortmap_field is given
795 the field is mapped to the value for the sortmap. Values not matching
796 sortmap_field are passed verbatim.
798 zoom: new target profile setting: sortStrategy. One of: "z3950", "type7",
799 "cql", "sru11" or "embed". The "embed" chooses type-7 or CQL sortby
800 depending on whether RPN or CQL is actually sent to the target.
804 zoom: urlRecipe result is stored in <pz:metadata type="generated-url">.
806 zoom: For content proxy authentication is stored in param name
807 "auth", instead of "authentication".
811 zoom: relay schema in SRU mode. Previously recordSchema was not affected
816 zoom: new target profile element literalTransform that holds XSLT
817 (encoded as string) for target. Only if present and non-zero length it is
818 considered present. This takes precedence over transform.
820 Don't rely on trang anymore for Git checkout builds. Configuration in etc
821 will only be properly validated if trang is available. From now on only
822 relax NC files are bundled with the source dist.
824 Updates to check for Boost unit test (autoconf stuff). On MacOSX this
825 component was not detected when it should be.
829 z3950_client: mark non-surrogate diagnostics from backend.
831 zoom: a proxy may be specified for HTTP fetch of target profiles.
835 Honor piggyback. Makes some SRU targets behave that insist on
836 maximumRecords > 0, but also increases performance.
840 Fix dlpath in installed metaproxy.xml for RPM/Deb package. The
841 file was not update for libdir/metaproxy4 in version 1.3.2.
845 Change location of Metaproxy modules from libdir/metaproxy to
846 libdir/metaproxy4. Directory libdir/metaproxy is also owned by
847 libmetaproxy3 and, thus, should not be used by libmetaproxy4.
849 New facility to dump APDUs from zoom filter. Enabled by
850 <log apdu="true"/> in the zoom filter configuation.
852 zoom filter bug fix: SRU diagnostics received from backend was
853 not properly converted to Bib-1 diagnostics.
855 Package metaproxy depends on libmetaproxy4, same version.
859 zoom: fix a bug WRT passing authentication parameters to backends.
863 Fixes for windows Makefile.
865 --- 1.2.10 2011/07/25
867 Change major version of metaproxy library from 3 to 4. This in turn
868 makes new package names for Debian and RPM.
872 zoom: enable marc-8 encoding by default for usmarc and opac (in pz2
875 zoom: configurable element sets for record transforms.
877 zoom: the target profile based transform is specified by element_transform
878 in element torus of of the ZOOM filter configuration ; default value
879 is "pz2". Target profile based retrieval is specified by element_raw
880 in configuration. It will perform same steps, but omit the XSL transform.
881 Default value is "raw".
883 zoom: element set is omitted if not set in profile. But only if pz2
884 transform is in effect. Previously the default element set was to "F".
886 zoom: For non-CF targets database arguments are parsed. User may supply
887 db,user=myuser&password=mypass for non-CF targets. These values override
888 what's given the authentication from the target profile.
890 session_shared: fix reference to freed memory. Would occur if a search
891 response had non-surrogate diagnostics.
895 Route may be given for each port in frontend_net.
899 Documentation for zoom filter. Local target profiles may be specified.
901 Fixes for zoom filter.
905 First version with zoom filter.
909 Filter z3950_client may be configured to always send a close APDU
910 to backend target when connection/session is closed. This will only
911 happen if close APDU is not already sent. Enabled by configuration
912 for z3950_client (force_close).
914 Filter virt_db and multi: relay close APDU.
916 Filter virt_db and multi: relay init size parameters
917 preferredMessageSize and maximumRecordSize.
919 Filter sru_z3950: increase init sz parameters from 1MB to 10 MB.
923 RPM package for Metaproxy works for both SLES11 and Centos 5.5.
925 metaproxy-config: exec_prefix, libdir, includedir. Use these variables
926 as determined by configure.
928 RPM: Release includes 'indexdata' name. Use indexdata in release name so
929 this package can be distinguished from other vendors.
933 Fix filter multi: relay idAuthentication parameters.
937 Add metaproxy-config for returning compiler flags, libraries.
941 Fix --with-boost=PREFIX .
945 session_shared: fix use of maintenance thread.
947 Introduce 'start' method for filters and routers. It gets called after
948 configure and after fork, but before processing. This changes API -
949 from libmetaproxy2 to libmetaproxy3.
953 session_shared: ensure backend session is closed if init rejected
956 z3950_client: fix NULL ptr reference that could occur if two clients
957 connected concurrently and if max-sockets was in effect.
961 Fix bug 3497 - Metaproxy unstable while stopping.
963 Fix bug 3495 - SEGV in SRU filter.
967 Filter multi throws diagnostic 'Present Out of Range' when
968 appropriate - rather than returning 0 records.
970 Filter virt_db: fix bad result reuse. Could happen if a result
971 was overriden and a backend did not supported named result sets.
975 Filter log: category access logs diagnostics even if searchStatus
976 or presentStatus is 'success'.
980 The SRU to Z39.50 filter does repeated Z39.50 present requests
981 to fetch all records. Needed when a Z39.50 server returns partial
982 results (due to message size limits).
986 Metaproxy now kills all child processes that are spawned by
987 modules (in case of fork, exec).
991 Debian package now installs /etc/metaproxy/metaproxy.xml which
992 includes all XML files /etc/metaproxy/filters-enabled .
993 The include facility uses YAZ' yaz_xml_include_simple (YAZ 4.0.1).
997 Package based on YAZ version 4 and YAZ++ 1.2.0. It now includes a
998 development package to facilitate 3rd party Metaproxy modules.
1000 --- 1.0.23 2010/01/04
1002 Filter virt_db: Close backend filter session when Init rejected is received
1003 from it (in which case it's not really closed yet). This will ensure we don't
1004 run out of resources such as FDs in this case.
1006 sru_z3950 filter: Accept any database (including those not listed).
1008 --- 1.0.22 2009/12/03
1010 Prepare for 64-bit YAZ. yazproxy will still work with YAZ++ 1.1.4 or
1011 later which means YAZ 3.0.47 or later.
1013 --- 1.0.20 2009/11/19
1015 For filter virt_db, the database is a glob pattern and the virtual
1016 database sections are consulted in the order given.
1018 --- 1.0.19 2009/07/08
1020 For filter multi, the target (for routing) may be given as a glob-pattern.
1022 More documentation for filters virt_db and multi.
1024 Update schema to allow for no database in sru_z3950 filter.
1026 --- 1.0.18 2009/06/30
1028 Added limit filter to put sleep (penalty) for heavy use.
1030 Filter frontend_net may be configured to limit the number of new connections
1031 from same IP to some value (connect-max).
1033 Fixed the load_balance filter.
1035 --- 1.0.17 2009/06/16
1037 Fix path for metaproxy executable for Debian init.d script.
1039 --- 1.0.16 2009/06/10
1041 SRU to Z39.50 filter honors x-username and x-password. If only
1042 x-username is given that translates to open authentication (Z39.50v2). If
1043 both x-username and x-password is present that translates to idPass
1044 authentication (Z39.50v3).
1046 New facility to change current working directory (-w).
1048 Update to upstream skeleton of init.d script. Should fix bug #2619.
1050 Filter session_shared now caches records (used to only cache connections
1053 Filter session_shared now invalidates a Z39.50 session if a server
1054 returns -1 hits. This facility was also part of yazproxy and gets around
1055 a bug in Voyager-based Z39.50 servers.
1057 --- 1.0.15 2008/11/18
1059 Fixed reference counting bug in Z39.50 client module (could cause SEGV).
1061 --- 1.0.14 2008/06/09
1063 Fixed the value of SRU record schema in searchRetrieve response. It was set
1064 to a fixed value of "dc" before.
1066 Serialize identical SRU requests. This is useful if HTTP client software
1067 fires identical requests against metaproxy.
1069 Allow Z39.50 target to be specified for SRU requests by using SRU extra
1070 parameter x-target. Allows SRU to contact arbitrary Z39.50 targets and
1071 avoid static configuration. This facility is handled by the sru_z3950 module
1072 and the z3950_client module.
1074 Allow maximum number of sockets to be used for a Z39.50 client by the
1075 use of SRU extra parameter x-max-sockets. This facility is handled by the
1076 sru_z3950 module and the z3950_client module.
1078 --- 1.0.13.1 2008/02/29
1080 Simplified check for Boost libraries.
1082 --- 1.0.13 2008/02/29
1084 First Debian package.
1086 The sru_z9350 filter now recognizes SRU parameter z-target as being
1087 a ZURL of the form host/database .
1089 Mergetype may be specified for filter 'multi'.
1091 --- 1.0.12 2007/09/19
1093 Fixed problem in Makefile WRT library specifictions. This could produce
1094 linker errors (when they should not happen).
1096 Fixed bug #1341: MetaProxy returning different results. Problem was that
1097 fix-up of record database did not normalize the database name.
1099 Documentation updates for Windows compilation.
1101 --- 1.0.11 2007/06/14
1103 Fixed problem with logfile being truncated.
1105 --- 1.0.10 2007/05/23
1107 Fixed bug #1136: Access rights not enforced.
1109 Extension for log module. The log category 'access' logs more details.
1110 New category 'user-access' added which is simlar to 'access' but adds
1111 the Z39.50 user as for all entries in a session.
1115 Added support for configurable default/force target/vhost for module Z39.50
1118 --- 1.0.8 2007/01/25
1120 Implemented filter, session_shared, which optimizes usage of Z39.50
1121 sessions and result sets.
1123 New filter, record_transform, which converts MARC/XML records.
1125 New filter, sru_z3950, which converts SRU to Z39.50 packages.
1127 New filter, load_balance, in development.
1129 New filter, zeerex_xplain.
1131 XML framework for config files started.
1133 Master RelaxNG Compact schema's are found in xml/schema/*.rnc,
1134 RelaxNG XML schemas and XML Schema's are generated from RNC syntax.
1135 XML config files are checked against RNG and XML Schema's.
1137 XSLT transformation framework added in xml/xslt/*.xsl, consisting mainly of
1138 LOC Marc21 stylesheets found at http://www.loc.gov/marcxml/xslt.
1139 Added stylesheet explain2cqlpqftxt.xsl which transforms a standard SRU ZeeReX
1140 explain record to YAZ CQL-to-PQF text config file.
1142 --- 1.0.7 2006/11/07
1144 Added 'timeout' setting for filter frontend_net which specifies the number
1145 of seconds a session is idle before it is closed. Default timeout is
1148 --- 1.0.6 2006/07/07
1150 Database name in records returned set for virt_db/multi filters.
1152 Filter session_shared now functional.
1154 Log filter can be configured to write to a given file using 'filename'
1155 element. Also information category can be specified with 'category'. If
1156 filename is omitted, the log filter writes to stdout. See etc/config5.xml
1159 --- 1.0.5 2006/05/16
1161 Fixed compilation on Windows.
1163 --- 1.0.4 2006/05/16
1165 Added documentation for the hidenavailable option for the multi filter.
1167 --- 1.0.3 2006/05/16
1169 Fixed bug #573: Hide errors for individual servers. If the element
1170 'hideunavailable' is given in the configuration, individual servers
1171 being unavailable are hidden (unless all are unavailable).
1173 Fixed bug #574: Database names are recognised case-sensitively.
1175 Fixed bug #567: Fix up database name in Name-Plus-Record.
1177 Fixed bug #568: Update win/makefile for VS 2005.
1179 Fixed bug #569: Some options throws unknown exception.
1181 --- 1.0.2 2006/04/28
1183 More information about virtual hosts. The 'etc' directory is part of the
1186 --- 1.0.1 2006/04/27
1188 Build instructions for Windows. NMake makefile part of distribution tar.
1190 --- 1.0.0 2006/04/24
1194 Filters functional: auth_simple, backend_test, frontend_net, http_file,
1195 log, multi, query_rewrite, template, virt_db, z3950_client.
1197 Filters in development: session_shared.
1199 Pseudo-filters: template, dl