3 Add support for binding outgoing IP for http_client and z3950_client
4 This is enabled by bind_host setting. MP-575
8 z3950_client: allows negotiation charset to be set MP-574
10 cgi: more functional but no support for POSTed content yet (part of MP-564)
14 http_file: add include of sys/stat.h fixes MP-576
16 Fix documentation about SRU client support MP-572
18 Initialize Libxml2 - for threaded operation MP-571
22 On SIGTERM shut down connection+listening sockets MP-568
23 This fixes a problem with 'metaproxy stop' sometimes taking a long time.
27 zoom: make retry on failure configurable MP-565
28 The default and existing behavior is that backend failures (any
29 diagnostic) makes the module re-search once. The behavior may
30 be changed by db parameter 'retry'. If given value '0' disables
31 retry and '1' enables it. If not given, the Torus record may
32 specify with element retryOnFailure (value '0'/'1').
36 Fix race condition in SIGTERM handling. Could terminate whole metaproxy
37 instead of just a child process. Extremely rare in real life, hit me with
38 CF stress testing. MP-559.
42 http_file: passthru option MP-557
43 New facility for http_file to passthru - even if an area is matched. The
44 default behavior (passthru=false) is to return 404: Not found. With
45 passthru=false, next filter is consulted.
49 Fix ref to freed memory in log filter 1line - MP-556
51 echoedSearchRetrieveRequest support MP-555
55 zoom: allow hostname to be given for ipauth MP-552
56 The Torus setting for that is called auth_hostname.
60 zoom: IP auth use field "ipRanges" rather than "ip" MP-551
64 session_shared: close in ~BackendInstance MP-549
65 This fixes a serious issue where some MP would leak sockets.
67 session_shared: mutex lock in BackendClass::release_backend MP-550
68 Fixes a SEGV that could occur (in rare cases).
72 zoom: Do not include ZOOM C's fake surrogate diag recs MP-547
74 zoom: fix invalid present response in some cases MP-546
76 zoom: Relay Torus HTTP error message
80 Check for proper limits before using RecordCache functions MP-544
84 Build packages for Ubuntu Trusty Tahr 14.04 LTS
86 sort: crash / invalid_read in filter sort MP-541
88 sru_z3950: facet should be stored in additionalSearchInfo MP-533
90 doc: fix missing man pages MP-542
92 cql_rpn: fix threading problem with CQL to RPN conversion MP-497
94 cql_rpn: allow conversion from RPN to CQL (reverse) MP-537
98 sru_z3950: fix facet response (memory corruption) MP-532
100 log: fix crash idPass user is omitted MP-530
104 query_rewrite: pass-thru non Type-1 queries MP-527
106 metaproxy stop (SIGTERM) kills all child processes spanwed by
107 filter (if any) before invoking filter destructors. MP-525
111 http_file: only supports HTTP GET MP-523
113 session_shared: shut down expire thread in destructor
114 This ensures that expire thread is not running after destruction
115 and does bad memory references, etc.
117 frontend_net: fix segfault on startup MP-524
118 Would happen if MP was listening on multiple ports and one
119 of the ports was already in use (and MP would exit).
121 frontend_net: fix memory leak MP-521
122 This leak would occur if all sessions were in use and the input
123 queue was cleared when a client would close connection (socket).
125 frontend_net: fix compilation on Windows (SIGUSR1 does not exist)
129 http_rewrite: use local skiplist; fixes memory corruption. MP-520
131 http_client: x-forwarded-for controls X-Forwarded-For presence
132 If x-forwarded-for setting (boolean) is enabled, http_client will
133 generate an X-Forwarded-For header entry which includes existing
134 X-Forwarded-For (if any) and current peer address (immediate client
135 of Metaproxy). By default x-forwarded-for disabled and X-Forwarded-For
136 will not be generated.
138 z3950_client: client_ip controls client-IP presence
139 If client_ip setting (boolean) is enabled, z3950_client will
140 generate a client_ip OID as part of init request which includes
141 previous client_ip (if any) and current peer address (immediate
142 client of Metaproxy). By default client_ip is disabled and client_ip
143 will not be generated.
145 HTTP X-Forwarded-For/Z39.50 Client-IP support
146 virt_db, multi: relays Z39.50 client-IP.
147 sru_z3950: converts X-Forwarded-For header to Z39.50 client-IP.
148 zoom: uses Client-IP or origin address (prefer Client-IP).
149 frontend_net: Strips tcp: from peer address (so that it is no longer
150 printed and stripped in zoom filter).
151 z3950_client: builds client-IP list - combining immediate peer address
152 as returned by COMSTACK and existing client-IP list (if avaiable).
153 The Origin only printes first X-Forwarded address.
157 Log when SIG{TERM,USR1} is received ASAP MP-513
158 Do it in frontend_net event loop rather than in place for metaproxy
159 main, which only exits when all sessions are terminated for SIGUSR1
162 metaproxy-config: quote some RHS values (that might include blanks)
164 Fix leak in sru_z3950 filter - when explain is returned MP-511
166 Allow stylesheet to be given for sru_z3950 filter MP-510
167 This is based on a patch by Sven Porst and the functionality
168 of the YAZ Generic Frontend Server.
170 Allow base attribute in configuration file tags - the attributes are
171 inserted by XInclude usage as mentioned on
172 yazlist: http://lists.indexdata.dk/pipermail/yazlist/2012-Au
173 and noted in a gist: https://gist.github.com/3551094
175 Package metaproxy provides virtual package metaproxy6 MP-508
176 This allows module packages to depend on a metaproxy server
179 Filter destructors called upon daemon termination MP-505
180 When metaproxy daemon receives SIGTERM the stop method of each filter
181 is called. The stop method existed before, but did not take any
182 arguements (void).. The frontend_net filter can now distinguish
183 between SIGUSR1 (stop bind, but keep sessions running) and SIGTERM
184 (stop immediately). Note that this changes the API+ABI of Metaproxy
187 zoom: sync up with Pazpar2 WRT authentication handling MP-492
189 Router: use shared_ptr rather than naked one - to avoid leak if an
190 exception is thrown in configure.
194 zoom: Add nocproxy=1 for contentConnector sessions MP-501
196 Doc: mention proper versions; fix link to Boost win binaries.
198 Windows: update for Boost 1.55
200 Windows: avoid warning when using boost::split. Done by defining
201 _SCL_SECURE_NO_WARNINGS for Visual Studio.
203 Fix LSB conformance for /etc/init.d/metaproxy MP-500
204 Debian: add support for /etc/init.d/metaproxy status
206 sort: Add const to Record less than operator in order to compile on
211 session_shared: fix element-set handling in record caching. MP-499
213 document http_rewrite. MP-468
215 http_write: Honor X-Metaproxy-SkipLink MP-479 . Filter understands and
216 respects the header (which will normally come from the cproxy filter)
220 RPM: fix dependency for libmetaproxy5-devel MP-496. The libmetaproxy5-devel
221 RPM was unsable in version 1.4.0.
223 Remove log message about "backend classes". Appeared in version 1.4.0.
227 Build RPM/Deb packages with YAZ 5 and yazpp 1.5. Metaproxy still compiles
228 with older version from source, but packages now use YAZ 5 that supports
231 sru_z3950: Fix SEGV for decoding invalid SRU requests
232 Incorrect reference to union (was explain response rather than
235 session_shared: match additionalSearchInfo (includes facets). In
236 layman's terms means that means that facets are properly handled
237 by this filter. Eg a change in requested facets will issue new
238 search and facets from exisiting result set are cached.
240 --- 1.3.62 2013/09/11
242 http_rewrite: better handling of <script> content in HTML parser. MP-486
244 http_rewrite: fix threading issue with regex. MP-482
246 bounce: don't use strdup for fixed length content. Error occurred in echo
249 session_shared: expire backend class when no instances left. This
250 means memory clean up, but not really a leak fix.
252 virt_db: fix leak for naked ptr.
254 cql_rpn: use config relative path for cql2rpn file. MP-481
256 Updates for upcoming YAZ 5.
258 --- 1.3.61 2013/08/29
260 New configuration directories ports.d/routes.d for metaproxy
261 configuration. This allows 3rd party packages to install config
262 for ports and new routes. MP-477
264 --- 1.3.60 2013/08/21
266 Fix metaproxy-config --libs to return non-mt over mt libs.
267 The -mt versions do not exist as shared objects and cause
268 linker errors for applications linking with Metaproxy.
269 Problem present in versions 1.3.56 - 1.3.59. MP-475
271 HTML: clean up char checks. Add ptr to HTML parse spec
273 HTML parser stops eating tag when <-char is met MP-473
275 rewrite: do not even compare content types, if we don't have any
276 the regex_match caused a segfault if we had no content-type in the
279 rewrite: within header=... matches only the header value
280 Used to match the whole header line, but we need to use
281 ^$ anchoring for host-relative regexps, and they need to
282 anchor at the ends of the value. MP-470.
284 rewrite: Ruleset functional MP-469
286 --- 1.3.59 2013/07/12
288 session_shared: negotiate init sz parameters.
289 By default, session_shared will honor the paramters given by client.
290 An alternative, but not implemented, algorithm would be to only
291 re-use sessions with same sz parameters. This however, could reduce
292 re-use of sessions a lot. Hence this, simple algorithm instead. The
293 negotiation to a maximum sz values can be enabled by using
294 <init maximum-record-size="sz1" preferred-message-size="sz2"/>
295 in configuration. This will make session_shared send those values
296 to backends and use returned init values in negotaition to
297 client before session_shared.
299 session_shared: resolve result-set references.
300 The reference is substitued with the query for old set if database
301 match and query type is Type-1. If not the reference will issue a
304 sort filter: relays RecordComposition including elementSet in use for
307 http_client: better diagnostics
309 http_client: disables HTTP redirect handling by default.
310 It can be configured with max-redirects in configuration.
312 --- 1.3.58 2013/06/12
314 Fix loading of filters cql_rpn and sru_z3950 . Was broken by 1.3.57.
316 --- 1.3.57 2013/06/12
318 Make RouterChain and RouterXML part of public API (libmetaproxy).
320 http_client: honor X-Metaproxy-Proxy as an alternative to
321 the "proxy" configuration. Allows proxy to be set per HTTP request.
323 sru_z3950: For SRU requests recognize x-client prefixes as a way
324 to ingest "database parameters".. The suffix of x-client- serves
325 as database argument name. Multiple may be given. For example:
326 http://path/db/?operation=searchRetrieve&x-client-user=a&x-client-password=b
327 is turned into Z39.50 database
330 --- 1.3.56 2013/05/27
332 New filter present_chunk. This filter allows splitting of present requests into smaller chunks.
334 New filter sd_remove, which replaces surrogate diagnostics with
335 SUTRS records. This filter tries to deal with clients that breaks
336 when receiving surrogate diagnostics.
338 new filter http_client. Same role as z3950_client, but just for
339 HTTP. Allows Metaproxy to operate as a HTTP proxy.
341 New filter http_rewrite1, which serves as purpose on how to rewrite
342 HTTP content with Metaproxy.
344 Use libboost-system if available, because newer versions of libboost-threads
345 requires libboost-system.
347 Allow frontend_net to serve SSL/HTTPS, because we can specify a server
350 --- 1.3.55 2013/04/10
352 zoom: Torus setting: authenticationMode which may hold values "basic"
355 --- 1.3.54 2013/03/27
357 configure: check for Libxslt support in YAZ and rely on definitions
358 from yaz-config, rather than doing own xslt/xml2 checks.
360 Allow timestamp format for log lines to be given with option -m
361 for metaproxy. Similar to yaz-ztest/GFS option -m.
363 Document log category 'line' for log filter.
365 Solr configuration example in etc/config-solr.xml
367 multi: do not mess with request package. For scan and search,
368 database-names were modified and the request package was left with
369 dangling pointers that caused a log filter to fail (request package
370 inspected after multi was invoked).
372 Documentation: fix id of metaproxy-config ref .
374 Documentation: update for USEMARCON support.
376 --- 1.3.53 2013/01/31
378 record_transform: allow OPACXML to OPAC conversion
380 zoom: document content-proxy
382 zoom: document db parm content-{user,password}, torus_url. Also
383 <torus auth_url="..> which makes zoom operate in authenticated mode
386 --- 1.3.52 2012/11/30
388 zoom: fix http://-check. SRU search broken in 1.3.51.
390 --- 1.3.51 2012/11/15
392 zoom: only append http:// for SRU if not already given . Makes it
393 possible to use https-URLs.
395 Use yazpp 1.4 or later due to new ABI.
397 frontend_net: allow max package size to be specified. Controlled by
398 attribute 'max_recv_bytes' of element 'port'.
400 --- 1.3.50 2012/10/29
402 For most generated diagnostics by filters, typically temporary
403 system error, augment addinfo message with filter name.
405 Add support for CentOS 6 packages.
407 sru_z3950: interpret Z39.50 diagnostics part of Init Response.
409 Add man page for metaproxy-config.
411 --- 1.3.49 2012/10/18
413 zoom: new config element passthru. This defines an element set that is
414 passed verbatim to the backend in pz2 mode.
416 auth_simple: allow both idPass and open auth. Also fix SEGV that could
419 --- 1.3.48 2012/10/08
421 z3950_client: fix string handling for init diagnostics in the case where
424 query_rewrite: no charset conversion for error queries. Avoid performing
425 charset conversion for query conversion errors. The resulting Type-1
426 query is invalid in this case.
428 --- 1.3.47 2012/10/04
430 For graceful stop (SIGUSR1), metaproxy will kill children processes.
432 Log when metaproxy is invoked in test mode (-t).
434 Log PID for each log message.
436 multi: combine both NSDs and multiple NSDs into one (diagnostics).
438 z3950_client: fixup multiple NSD's too. Like surrogate diagnostics,
439 a (backend=target) is appended for each diagnostic so that can be
440 determined the origin of error.
442 multi: hideerrors also in use for present response.
444 Solr example in zoom man page.
446 Fix typo in query_rewrite config example.
448 Log at least first non surrogate diagnostic. Instead of
449 "Z_Records_multipleNSD"
451 multi: Fix check for opt Records in present response. A SEGV could occur
452 if a target did not return records and no diagnostics.
454 --- 1.3.46 2012/09/24
456 Yet another fix for graceful stop.
458 --- 1.3.45 2012/09/12
460 sru_z3950: relay surrogate diagnostics.
462 --- 1.3.44 2012/09/10
464 zoom: Honor extraArgs, strip # in zurl.
466 multi: fix SEGV for scan. Reported by Rustam T. Usmanov.
468 zoom: url_recipe allow %{var[reg]} substitutions.
469 It's like ${var[reg]} but does URI component encoding as well.
471 --- 1.3.43 2012/08/22
473 RPM/Deb: require yazpp 1.3.2, because it fixes a missing close of
474 non-keepalive HTTP sessions.
476 http_file: allow zero size files (bug fix)
478 Fix zoom schema: auth_url is optional
480 --- 1.3.42 2012/08/20
482 zoom: fix un-init memory (could result in SEGV at session close)
484 frontend_net: handle X-Forwarded-For. This is stored in package.origin()
485 and may be used in filters as usual.
487 zoom: authentication via Torus lookup
488 Enabled by new configuration setting: auth_url . If this is defined,
489 the zoom module will contact Torus for auth/IP lookup and that will
490 define realm to be used in session.
492 --- 1.3.41 2012/08/10
494 virt_db: Fix database name - first character we removed by mistake.
495 Bug introduced in 1.3.40.
497 --- 1.3.40 2012/08/06
499 virt_db: Don't use "unix path" as database for Unix sockets.
501 --- 1.3.39 2012/08/02
503 z3950_client: Don't tamper with / in zurl - fixes problems
504 using Unix sockets for backends.
506 session_shared: fix integer overflow problem with hit count.
508 session_shared: avoid long usage of cached queries.
510 zoom: New database argument , torus_url to set URL of Torus
511 record to be fetched.
513 --- 1.3.38 2012/07/04
515 Fixes for 'metaproxy reload' for RPM/Debian packages.
517 zoom: Allow rpn2cql conversion to be augmented with a properties file.
518 Element rpn2cql can be specified per-target for the zoom filter.
520 log: New category "line" which is a single-line log message with
521 most important parts of a HTTP/Z39.50 request/response.
523 --- 1.3.37 2012/06/01
525 frontend_net: add facility to report live statistics about response
526 times and current thread usage. The report is an XML document
527 and is triggered for a specific URL path. This is set by <stat-req>
528 in the configuration of frontend_net. By default this report is
529 disabled (same as empty value for <stat-req>).
531 Fix reload problem in init.d script for RPM/Debian.
532 The '/etc/init.d/metaproxy reload' in some cases would stop but not
533 start metaproxy - effectively stopping the service.
535 Don't display start log message when config testing (-t).
537 zoom: avoid CCL message limit of 1K in ZOOM filter.
539 --- 1.3.36 2012/05/10
541 metaproxy init script reacts to reload which does graceful stop +
542 start and is used by logrorate script.
544 --- 1.3.35 2012/05/09
546 Fixes for Windows compilation.
548 Metaproxy daemon reacts to SIGUSR1 in which case it will leave
549 existing sessions running but terminate the monitor process that is
550 used in keepalive mode.
552 Change start log message to 'metaproxy start'. Was 'Metaproxy start'
553 before. Consistent with 'metaproxy stop' message.
555 zoom: document zoom's proxy_timeout
557 z3950_client: fixup addinfo for init response
559 virt_db: return other diagnostic if init is rejected. Diagnostic 236:
560 "Access to specified database denied" is returned, but only if init
561 response from backend does not carry diagnostics already.
563 multi: relays user info for first rejected target. The other-information
564 field for init response for first rejected target is in common init
565 response. This ensures that some backend init diagnostics are returned to
568 --- 1.3.34 2012/04/25
570 frontend_log: extend logging (when message is given in config).
572 --- 1.3.33 2012/04/25
574 zoom: Fix check for proxy. Use diagnostic 1074 for proxy failures.
576 --- 1.3.32 2012/04/24
578 sru_z3950 filter passes through incoming Z39.50 requests again. Was
579 not handled by mistake in Metaproxy versions 1.3.29, 1.3.30 and 1.3.31.
581 --- 1.3.31 2012/04/24
583 zoom: fixes for retry/proxy failover logic. More logging.
585 --- 1.3.30 2012/04/23
587 zoom: return addinfo="proxy failure" for proxy failures. This also
588 changes the scheme for dealing with proxies a bit. zoom now always
589 do proxy check, even if there's no failover. Fortunately, that's not
592 zoom: Init rejected wo diagnostics maps to Bib-1:1014.
593 Bib-1 1014, "Init/AC: Authentication System error", seems pretty
594 generic. We don't know why the init would fail; IP, user, block IP, etc.
595 sru_z3950 filter maps this to SRU diagnostic 3: "Authentication error".
597 zoom: guess if invalid SRU response was an auth failure
599 session_shared: disable session retry by default . Can be enabled by
600 restart="true" in resultset section.
602 --- 1.3.29 2012/04/18
604 zoom: may read cf-proxy's config settings.
605 This reduces manual configuration of the content proxy server host.
606 The ZOOM module will use the old style session.proxyhost if "server"
607 is given (deprecated) and use the new style proxyhost/session if
608 "config_file" is in use.
610 frontend_net: remove incoming requests that can not be handled
611 Requests in queue for filter frontend_net are removed if client
612 closes connection for the session and request is not yet handled.
614 sru_z3950: serialize requests. This is to ensure that pipelined
615 HTTP requests are handled properly.
617 --- 1.3.28 2012/04/04
619 New class, wrbuf, that wraps YAZ' WRBUF.
621 --- 1.3.27 2012/03/30
623 Metaproxy daemon is now running as user "metaproxy". This user is
624 managed by package maintainer scripts. The user information is stored
625 in /etc/metaproxy/metaproxy.user .
627 --- 1.3.26 2012/03/20
629 New filter, sort, that allows sorting of XML records via Z39.50
632 Filter record_transform: USEMarcon support. For example:
633 <retrieval syntax="usmarc">
634 <backend syntax="unimarc" name="F">
635 <usemarcon stage1="/etc/usemarcon/uni2us/uni2us.ini"/>
639 Filter multi: empty route pattern uses route as default.
641 <target route="z3950.indexdata.com">z3950.indexdata.com</route>
642 may use the shorter notation
643 <target route="z3950.indexdata.com"/>
645 Filter query_rewrite: use config path to locate XSLT.
647 Filter frontend_net: log statistics.
648 If a custom message element in frontend_net configuration it makes
649 the frontend_net filter produce a log entry whenever an operation
650 is completed. The log is always written using yaz_log with the
651 custom message given, the package ID (session ID) , the time
652 the operation has been active (end-to-end) , the threads currently
653 active/total and the size of the request input/output queues.
655 query_rewrite: charset conversion of query terms.
656 This is an optional feature. Enabled by element <charset> in
657 configuration with attribute 'from' and 'to' that specifies
658 from/to encodings. The default 'from' encoding is UTF-8.
660 Filter record_transform: honor piggyback searches.
662 Filter zoom: re-connect when database is reused.
663 Re-connect is necessary if a connection is lost or a timeout occurs.
664 If not, we'll be seeing zero hits, when we shouldn't.
666 --- 1.3.25 2012/02/29
668 zoom: Change scheme for dealing with content proxy URLs. The module
669 now has its own common XSL transform that is enabled by record_xsl
670 attribute in the configuration. This XSL gets parameter cproxyhost
671 that holds the host for the content proxy session . The genearted-url
672 is created only if urlRecipe is enabled. In previous version default
673 value of urlRecipe was ${md-electronic-url}; it is now empty and
674 disabled by default. Also generated-url no longer includes the content
675 proxy host. Content proxying URLs is supposed to the handle in the record_xsl
678 zoom: new setting timeout that specifies timeout for outgoing Z39.50/SRU
679 connections. Default value is 40 (seconds).
681 zoom: tune CCL to Z39.50 diagnostics mapping. Throw Bib-1: 108
682 "Malformed query" for syntax errors and related ones; throw
683 Bib-1: 3 "Unsupported search" for everything else. Details from
684 the CCL parser is provided as additional-info.
686 multi: new setting hideerrors that makes multi only relay diagnostics
687 to a client if all backends fail.
689 --- 1.3.24 2012/02/23
691 zoom: empty ccl_map field-mappings disables CCL map.
693 zoom: fix Explain search that could return error if session was
696 --- 1.3.23 2012/02/10
698 zoom: returns Explain records for database IR-Explain---1. The
699 target profile records are converted to Explain records via XSLT.
701 session_shared: make error recovery configurable. Whether a search
702 is restarted on errors or not, is configurable by attribute "restart"
703 in element "resultset" in configuration.
705 session_shared: only relay init for first request. session_shared, for
706 each backend class, now only relays first init request (rather than all).
707 The module only needs to save init response info once. This avoids the
708 need to check for session max.
710 --- 1.3.22 2012/02/02
712 zoom: fix memory leaks.
714 session_shared: maximum number of sessons is configurable. Default
715 value is 100. Result-sets for backends without named result sets are
716 only re-used if databases is identical for a search. This is under the
717 assumption that performance may suffer for those backends when
718 changing the database for each search.
720 multi: combines diagnostics from all backends. All diagnostics from
721 backends are combined into multiple non-surrogate diagnostics; rather
722 than just one diagnostic from first backend.
724 --- 1.3.21 2011/12/27
726 zoom: relay realm to cproxy parameter file.
728 Configuration: Allow filter collection element inside route. This
729 makes it possible to include multiple filters at once.
731 zoom: nocproxy also disables urlRecipe.
733 --- 1.3.20 2011/12/21
735 zoom: return diagnostic if CQL sortby conv fails. Diagnostic Bib-1 214
736 "Illegal sort relation" is returned. Gets translated to SRU diagnostic
737 90: "Unsupported direction value".
739 zoom: honor database argument nocproxy. This disables creating a content
740 connector session (for non-CF targets, usually) and also relays nocproxy
741 as database argument to a CF target.
743 --- 1.3.19 2011/12/16
745 zoom: Multiple proxy hosts may be given for proxy rich database
746 parameter. List is comma separated.
748 http_file: decodes URI paths properly. Does not return 404: not found
749 if no prefix are matches. Instead packages are passed on.
751 --- 1.3.18 2011/12/08
753 zoom: content-{user,password,proxy} are passed on to content proxy
754 system and takes precedence over user,password,proxy .
756 sru_z3950: SRU extra argument x-log-enable=1 enables a search response
757 with a log element including log material from children filters. At
758 this point, only the zoom filter uses this log facility. It will
759 eventually be used by other filters as well. In particular it might be
760 useful for this feature to track all filters in used during a search.
762 zoom: for x-log-enable=1, APDUs sent by ZOOM C, records as received
763 and queries as they are manipulated are logged.
765 zoom: extend addinfo with native diagnostics. Diagnostics as received
766 by ZOOM C are put into addinfo - including ZOOM, HTTP, SRU and Bib-1
767 diagnostics. This indicates both a backend diagnostic and the original
770 zoom: default urlRecipe value is ${md-electronic-url}
772 zoom: target profile setting sruVersion is recognized.
774 --- 1.3.17 2011/11/17
776 zoom: log target profile record fetched (AKA Torus).
778 --- 1.3.16 2011/11/17
780 Change target profile parameter CfSubDb to CfSubDB.
782 --- 1.3.15 2011/11/12
784 zoom: bug fix: realm was relayed to CF targets by mistake (realm only
785 makes sense to the zoom module itself).
787 --- 1.3.14 2011/11/11
789 zoom: realm may be given as part of database.
791 --- 1.3.13 2011/10/26
793 Fix Origin class assigment method; was removd by mistake in 1.3.12.
795 --- 1.3.12 2011/10/26
797 zoom: database args x-name=value are passed through to backend database.
799 SRU filter: user may specify session ID that is passed to log entries
800 that follows. It is specified by using x-session-id in the SRU arguments.
802 zoom: fix null pointer reference which would occur for bad url parameter
803 inside "torus" or if url was not given.
805 --- 1.3.11 2011/09/09
806 Fix bug in filter session_shared where sessions would not expire
807 properly (session ttl). This in turn could make the target close the
808 connection before expected and session_shared would return diagnostic
809 2: system temporarily available.
811 --- 1.3.10 2011/09/09
813 zoom: new target profile setting: sortmap_field. If sortmap_field is given
814 the field is mapped to the value for the sortmap. Values not matching
815 sortmap_field are passed verbatim.
817 zoom: new target profile setting: sortStrategy. One of: "z3950", "type7",
818 "cql", "sru11" or "embed". The "embed" chooses type-7 or CQL sortby
819 depending on whether RPN or CQL is actually sent to the target.
823 zoom: urlRecipe result is stored in <pz:metadata type="generated-url">.
825 zoom: For content proxy authentication is stored in param name
826 "auth", instead of "authentication".
830 zoom: relay schema in SRU mode. Previously recordSchema was not affected
835 zoom: new target profile element literalTransform that holds XSLT
836 (encoded as string) for target. Only if present and non-zero length it is
837 considered present. This takes precedence over transform.
839 Don't rely on trang anymore for Git checkout builds. Configuration in etc
840 will only be properly validated if trang is available. From now on only
841 relax NC files are bundled with the source dist.
843 Updates to check for Boost unit test (autoconf stuff). On MacOSX this
844 component was not detected when it should be.
848 z3950_client: mark non-surrogate diagnostics from backend.
850 zoom: a proxy may be specified for HTTP fetch of target profiles.
854 Honor piggyback. Makes some SRU targets behave that insist on
855 maximumRecords > 0, but also increases performance.
859 Fix dlpath in installed metaproxy.xml for RPM/Deb package. The
860 file was not update for libdir/metaproxy4 in version 1.3.2.
864 Change location of Metaproxy modules from libdir/metaproxy to
865 libdir/metaproxy4. Directory libdir/metaproxy is also owned by
866 libmetaproxy3 and, thus, should not be used by libmetaproxy4.
868 New facility to dump APDUs from zoom filter. Enabled by
869 <log apdu="true"/> in the zoom filter configuation.
871 zoom filter bug fix: SRU diagnostics received from backend was
872 not properly converted to Bib-1 diagnostics.
874 Package metaproxy depends on libmetaproxy4, same version.
878 zoom: fix a bug WRT passing authentication parameters to backends.
882 Fixes for windows Makefile.
884 --- 1.2.10 2011/07/25
886 Change major version of metaproxy library from 3 to 4. This in turn
887 makes new package names for Debian and RPM.
891 zoom: enable marc-8 encoding by default for usmarc and opac (in pz2
894 zoom: configurable element sets for record transforms.
896 zoom: the target profile based transform is specified by element_transform
897 in element torus of of the ZOOM filter configuration ; default value
898 is "pz2". Target profile based retrieval is specified by element_raw
899 in configuration. It will perform same steps, but omit the XSL transform.
900 Default value is "raw".
902 zoom: element set is omitted if not set in profile. But only if pz2
903 transform is in effect. Previously the default element set was to "F".
905 zoom: For non-CF targets database arguments are parsed. User may supply
906 db,user=myuser&password=mypass for non-CF targets. These values override
907 what's given the authentication from the target profile.
909 session_shared: fix reference to freed memory. Would occur if a search
910 response had non-surrogate diagnostics.
914 Route may be given for each port in frontend_net.
918 Documentation for zoom filter. Local target profiles may be specified.
920 Fixes for zoom filter.
924 First version with zoom filter.
928 Filter z3950_client may be configured to always send a close APDU
929 to backend target when connection/session is closed. This will only
930 happen if close APDU is not already sent. Enabled by configuration
931 for z3950_client (force_close).
933 Filter virt_db and multi: relay close APDU.
935 Filter virt_db and multi: relay init size parameters
936 preferredMessageSize and maximumRecordSize.
938 Filter sru_z3950: increase init sz parameters from 1MB to 10 MB.
942 RPM package for Metaproxy works for both SLES11 and Centos 5.5.
944 metaproxy-config: exec_prefix, libdir, includedir. Use these variables
945 as determined by configure.
947 RPM: Release includes 'indexdata' name. Use indexdata in release name so
948 this package can be distinguished from other vendors.
952 Fix filter multi: relay idAuthentication parameters.
956 Add metaproxy-config for returning compiler flags, libraries.
960 Fix --with-boost=PREFIX .
964 session_shared: fix use of maintenance thread.
966 Introduce 'start' method for filters and routers. It gets called after
967 configure and after fork, but before processing. This changes API -
968 from libmetaproxy2 to libmetaproxy3.
972 session_shared: ensure backend session is closed if init rejected
975 z3950_client: fix NULL ptr reference that could occur if two clients
976 connected concurrently and if max-sockets was in effect.
980 Fix bug 3497 - Metaproxy unstable while stopping.
982 Fix bug 3495 - SEGV in SRU filter.
986 Filter multi throws diagnostic 'Present Out of Range' when
987 appropriate - rather than returning 0 records.
989 Filter virt_db: fix bad result reuse. Could happen if a result
990 was overriden and a backend did not supported named result sets.
994 Filter log: category access logs diagnostics even if searchStatus
995 or presentStatus is 'success'.
999 The SRU to Z39.50 filter does repeated Z39.50 present requests
1000 to fetch all records. Needed when a Z39.50 server returns partial
1001 results (due to message size limits).
1003 --- 1.1.2 2010/03/18
1005 Metaproxy now kills all child processes that are spawned by
1006 modules (in case of fork, exec).
1008 --- 1.1.1 2010/01/28
1010 Debian package now installs /etc/metaproxy/metaproxy.xml which
1011 includes all XML files /etc/metaproxy/filters-enabled .
1012 The include facility uses YAZ' yaz_xml_include_simple (YAZ 4.0.1).
1014 --- 1.1.0 2010/01/20
1016 Package based on YAZ version 4 and YAZ++ 1.2.0. It now includes a
1017 development package to facilitate 3rd party Metaproxy modules.
1019 --- 1.0.23 2010/01/04
1021 Filter virt_db: Close backend filter session when Init rejected is received
1022 from it (in which case it's not really closed yet). This will ensure we don't
1023 run out of resources such as FDs in this case.
1025 sru_z3950 filter: Accept any database (including those not listed).
1027 --- 1.0.22 2009/12/03
1029 Prepare for 64-bit YAZ. yazproxy will still work with YAZ++ 1.1.4 or
1030 later which means YAZ 3.0.47 or later.
1032 --- 1.0.20 2009/11/19
1034 For filter virt_db, the database is a glob pattern and the virtual
1035 database sections are consulted in the order given.
1037 --- 1.0.19 2009/07/08
1039 For filter multi, the target (for routing) may be given as a glob-pattern.
1041 More documentation for filters virt_db and multi.
1043 Update schema to allow for no database in sru_z3950 filter.
1045 --- 1.0.18 2009/06/30
1047 Added limit filter to put sleep (penalty) for heavy use.
1049 Filter frontend_net may be configured to limit the number of new connections
1050 from same IP to some value (connect-max).
1052 Fixed the load_balance filter.
1054 --- 1.0.17 2009/06/16
1056 Fix path for metaproxy executable for Debian init.d script.
1058 --- 1.0.16 2009/06/10
1060 SRU to Z39.50 filter honors x-username and x-password. If only
1061 x-username is given that translates to open authentication (Z39.50v2). If
1062 both x-username and x-password is present that translates to idPass
1063 authentication (Z39.50v3).
1065 New facility to change current working directory (-w).
1067 Update to upstream skeleton of init.d script. Should fix bug #2619.
1069 Filter session_shared now caches records (used to only cache connections
1072 Filter session_shared now invalidates a Z39.50 session if a server
1073 returns -1 hits. This facility was also part of yazproxy and gets around
1074 a bug in Voyager-based Z39.50 servers.
1076 --- 1.0.15 2008/11/18
1078 Fixed reference counting bug in Z39.50 client module (could cause SEGV).
1080 --- 1.0.14 2008/06/09
1082 Fixed the value of SRU record schema in searchRetrieve response. It was set
1083 to a fixed value of "dc" before.
1085 Serialize identical SRU requests. This is useful if HTTP client software
1086 fires identical requests against metaproxy.
1088 Allow Z39.50 target to be specified for SRU requests by using SRU extra
1089 parameter x-target. Allows SRU to contact arbitrary Z39.50 targets and
1090 avoid static configuration. This facility is handled by the sru_z3950 module
1091 and the z3950_client module.
1093 Allow maximum number of sockets to be used for a Z39.50 client by the
1094 use of SRU extra parameter x-max-sockets. This facility is handled by the
1095 sru_z3950 module and the z3950_client module.
1097 --- 1.0.13.1 2008/02/29
1099 Simplified check for Boost libraries.
1101 --- 1.0.13 2008/02/29
1103 First Debian package.
1105 The sru_z9350 filter now recognizes SRU parameter z-target as being
1106 a ZURL of the form host/database .
1108 Mergetype may be specified for filter 'multi'.
1110 --- 1.0.12 2007/09/19
1112 Fixed problem in Makefile WRT library specifictions. This could produce
1113 linker errors (when they should not happen).
1115 Fixed bug #1341: MetaProxy returning different results. Problem was that
1116 fix-up of record database did not normalize the database name.
1118 Documentation updates for Windows compilation.
1120 --- 1.0.11 2007/06/14
1122 Fixed problem with logfile being truncated.
1124 --- 1.0.10 2007/05/23
1126 Fixed bug #1136: Access rights not enforced.
1128 Extension for log module. The log category 'access' logs more details.
1129 New category 'user-access' added which is simlar to 'access' but adds
1130 the Z39.50 user as for all entries in a session.
1134 Added support for configurable default/force target/vhost for module Z39.50
1137 --- 1.0.8 2007/01/25
1139 Implemented filter, session_shared, which optimizes usage of Z39.50
1140 sessions and result sets.
1142 New filter, record_transform, which converts MARC/XML records.
1144 New filter, sru_z3950, which converts SRU to Z39.50 packages.
1146 New filter, load_balance, in development.
1148 New filter, zeerex_xplain.
1150 XML framework for config files started.
1152 Master RelaxNG Compact schema's are found in xml/schema/*.rnc,
1153 RelaxNG XML schemas and XML Schema's are generated from RNC syntax.
1154 XML config files are checked against RNG and XML Schema's.
1156 XSLT transformation framework added in xml/xslt/*.xsl, consisting mainly of
1157 LOC Marc21 stylesheets found at http://www.loc.gov/marcxml/xslt.
1158 Added stylesheet explain2cqlpqftxt.xsl which transforms a standard SRU ZeeReX
1159 explain record to YAZ CQL-to-PQF text config file.
1161 --- 1.0.7 2006/11/07
1163 Added 'timeout' setting for filter frontend_net which specifies the number
1164 of seconds a session is idle before it is closed. Default timeout is
1167 --- 1.0.6 2006/07/07
1169 Database name in records returned set for virt_db/multi filters.
1171 Filter session_shared now functional.
1173 Log filter can be configured to write to a given file using 'filename'
1174 element. Also information category can be specified with 'category'. If
1175 filename is omitted, the log filter writes to stdout. See etc/config5.xml
1178 --- 1.0.5 2006/05/16
1180 Fixed compilation on Windows.
1182 --- 1.0.4 2006/05/16
1184 Added documentation for the hidenavailable option for the multi filter.
1186 --- 1.0.3 2006/05/16
1188 Fixed bug #573: Hide errors for individual servers. If the element
1189 'hideunavailable' is given in the configuration, individual servers
1190 being unavailable are hidden (unless all are unavailable).
1192 Fixed bug #574: Database names are recognised case-sensitively.
1194 Fixed bug #567: Fix up database name in Name-Plus-Record.
1196 Fixed bug #568: Update win/makefile for VS 2005.
1198 Fixed bug #569: Some options throws unknown exception.
1200 --- 1.0.2 2006/04/28
1202 More information about virtual hosts. The 'etc' directory is part of the
1205 --- 1.0.1 2006/04/27
1207 Build instructions for Windows. NMake makefile part of distribution tar.
1209 --- 1.0.0 2006/04/24
1213 Filters functional: auth_simple, backend_test, frontend_net, http_file,
1214 log, multi, query_rewrite, template, virt_db, z3950_client.
1216 Filters in development: session_shared.
1218 Pseudo-filters: template, dl