1 zoom: empty ccl_map field-mappings disables CCL map.
3 zoom: fix Explain search that could return error if session was
8 zoom: returns Explain records for database IR-Explain---1. The
9 target profile records are converted to Explain records via XSLT.
11 session_shared: make error recovery configurable. Whether a search
12 is restarted on errors or not, is configurable by attribute "restart"
13 in element "resultset" in configuration.
15 session_shared: only relay init for first request. session_shared, for
16 each backend class, now only relays first init request (rather than all).
17 The module only needs to save init response info once. This avoids the
18 need to check for session max.
22 zoom: fix memory leaks.
24 session_shared: maximum number of sessons is configurable. Default
25 value is 100. Result-sets for backends without named result sets are
26 only re-used if databases is identical for a search. This is under the
27 assumption that performance may suffer for those backends when
28 changing the database for each search.
30 multi: combines diagnostics from all backends. All diagnostics from
31 backends are combined into multiple non-surrogate diagnostics; rather
32 than just one diagnostic from first backend.
36 zoom: relay realm to cproxy parameter file.
38 Configuration: Allow filter collection element inside route. This
39 makes it possible to include multiple filters at once.
41 zoom: nocproxy also disables urlRecipe.
45 zoom: return diagnostic if CQL sortby conv fails. Diagnostic Bib-1 214
46 "Illegal sort relation" is returned. Gets translated to SRU diagnostic
47 90: "Unsupported direction value".
49 zoom: honor database argument nocproxy. This disables creating a content
50 connector session (for non-CF targets, usually) and also relays nocproxy
51 as database argument to a CF target.
55 zoom: Multiple proxy hosts may be given for proxy rich database
56 parameter. List is comma separated.
58 http_file: decodes URI paths properly. Does not return 404: not found
59 if no prefix are matches. Instead packages are passed on.
63 zoom: content-{user,password,proxy} are passed on to content proxy
64 system and takes precedence over user,password,proxy .
66 sru_z3950: SRU extra argument x-log-enable=1 enables a search response
67 with a log element including log material from children filters. At
68 this point, only the zoom filter uses this log facility. It will
69 eventually be used by other filters as well. In particular it might be
70 useful for this feature to track all filters in used during a search.
72 zoom: for x-log-enable=1, APDUs sent by ZOOM C, records as received
73 and queries as they are manipulated are logged.
75 zoom: extend addinfo with native diagnostics. Diagnostics as received
76 by ZOOM C are put into addinfo - including ZOOM, HTTP, SRU and Bib-1
77 diagnostics. This indicates both a backend diagnostic and the original
80 zoom: default urlRecipe value is ${md-electronic-url}
82 zoom: target profile setting sruVersion is recognized.
86 zoom: log target profile record fetched (AKA Torus).
90 Change target profile parameter CfSubDb to CfSubDB.
94 zoom: bug fix: realm was relayed to CF targets by mistake (realm only
95 makes sense to the zoom module itself).
99 zoom: realm may be given as part of database.
101 --- 1.3.13 2011/10/26
103 Fix Origin class assigment method; was removd by mistake in 1.3.12.
105 --- 1.3.12 2011/10/26
107 zoom: database args x-name=value are passed through to backend database.
109 SRU filter: user may specify session ID that is passed to log entries
110 that follows. It is specified by using x-session-id in the SRU arguments.
112 zoom: fix null pointer reference which would occur for bad url parameter
113 inside "torus" or if url was not given.
115 --- 1.3.11 2011/09/09
116 Fix bug in filter session_shared where sessions would not expire
117 properly (session ttl). This in turn could make the target close the
118 connection before expected and session_shared would return diagnostic
119 2: system temporarily available.
121 --- 1.3.10 2011/09/09
123 zoom: new target profile setting: sortmap_field. If sortmap_field is given
124 the field is mapped to the value for the sortmap. Values not matching
125 sortmap_field are passed verbatim.
127 zoom: new target profile setting: sortStrategy. One of: "z3950", "type7",
128 "cql", "sru11" or "embed". The "embed" chooses type-7 or CQL sortby
129 depending on whether RPN or CQL is actually sent to the target.
133 zoom: urlRecipe result is stored in <pz:metadata type="generated-url">.
135 zoom: For content proxy authentication is stored in param name
136 "auth", instead of "authentication".
140 zoom: relay schema in SRU mode. Previously recordSchema was not affected
145 zoom: new target profile element literalTransform that holds XSLT
146 (encoded as string) for target. Only if present and non-zero length it is
147 considered present. This takes precedence over transform.
149 Don't rely on trang anymore for Git checkout builds. Configuration in etc
150 will only be properly validated if trang is available. From now on only
151 relax NC files are bundled with the source dist.
153 Updates to check for Boost unit test (autoconf stuff). On MacOSX this
154 component was not detected when it should be.
158 z3950_client: mark non-surrogate diagnostics from backend.
160 zoom: a proxy may be specified for HTTP fetch of target profiles.
164 Honor piggyback. Makes some SRU targets behave that insist on
165 maximumRecords > 0, but also increases performance.
169 Fix dlpath in installed metaproxy.xml for RPM/Deb package. The
170 file was not update for libdir/metaproxy4 in version 1.3.2.
174 Change location of Metaproxy modules from libdir/metaproxy to
175 libdir/metaproxy4. Directory libdir/metaproxy is also owned by
176 libmetaproxy3 and, thus, should not be used by libmetaproxy4.
178 New facility to dump APDUs from zoom filter. Enabled by
179 <log apdu="true"/> in the zoom filter configuation.
181 zoom filter bug fix: SRU diagnostics received from backend was
182 not properly converted to Bib-1 diagnostics.
184 Package metaproxy depends on libmetaproxy4, same version.
188 zoom: fix a bug WRT passing authentication parameters to backends.
192 Fixes for windows Makefile.
194 --- 1.2.10 2011/07/25
196 Change major version of metaproxy library from 3 to 4. This in turn
197 makes new package names for Debian and RPM.
201 zoom: enable marc-8 encoding by default for usmarc and opac (in pz2
204 zoom: configurable element sets for record transforms.
206 zoom: the target profile based transform is specified by element_transform
207 in element torus of of the ZOOM filter configuration ; default value
208 is "pz2". Target profile based retrieval is specified by element_raw
209 in configuration. It will perform same steps, but omit the XSL transform.
210 Default value is "raw".
212 zoom: element set is omitted if not set in profile. But only if pz2
213 transform is in effect. Previously the default element set was to "F".
215 zoom: For non-CF targets database arguments are parsed. User may supply
216 db,user=myuser&password=mypass for non-CF targets. These values override
217 what's given the authentication from the target profile.
219 session_shared: fix reference to freed memory. Would occur if a search
220 response had non-surrogate diagnostics.
224 Route may be given for each port in frontend_net.
228 Documentation for zoom filter. Local target profiles may be specified.
230 Fixes for zoom filter.
234 First version with zoom filter.
238 Filter z3950_client may be configured to always send a close APDU
239 to backend target when connection/session is closed. This will only
240 happen if close APDU is not already sent. Enabled by configuration
241 for z3950_client (force_close).
243 Filter virt_db and multi: relay close APDU.
245 Filter virt_db and multi: relay init size parameters
246 preferredMessageSize and maximumRecordSize.
248 Filter sru_z3950: increase init sz parameters from 1MB to 10 MB.
252 RPM package for Metaproxy works for both SLES11 and Centos 5.5.
254 metaproxy-config: exec_prefix, libdir, includedir. Use these variables
255 as determined by configure.
257 RPM: Release includes 'indexdata' name. Use indexdata in release name so
258 this package can be distinguished from other vendors.
262 Fix filter multi: relay idAuthentication parameters.
266 Add metaproxy-config for returning compiler flags, libraries.
270 Fix --with-boost=PREFIX .
274 session_shared: fix use of maintenance thread.
276 Introduce 'start' method for filters and routers. It gets called after
277 configure and after fork, but before processing. This changes API -
278 from libmetaproxy2 to libmetaproxy3.
282 session_shared: ensure backend session is closed if init rejected
285 z3950_client: fix NULL ptr reference that could occur if two clients
286 connected concurrently and if max-sockets was in effect.
290 Fix bug 3497 - Metaproxy unstable while stopping.
292 Fix bug 3495 - SEGV in SRU filter.
296 Filter multi throws diagnostic 'Present Out of Range' when
297 appropriate - rather than returning 0 records.
299 Filter virt_db: fix bad result reuse. Could happen if a result
300 was overriden and a backend did not supported named result sets.
304 Filter log: category access logs diagnostics even if searchStatus
305 or presentStatus is 'success'.
309 The SRU to Z39.50 filter does repeated Z39.50 present requests
310 to fetch all records. Needed when a Z39.50 server returns partial
311 results (due to message size limits).
315 Metaproxy now kills all child processes that are spawned by
316 modules (in case of fork, exec).
320 Debian package now installs /etc/metaproxy/metaproxy.xml which
321 includes all XML files /etc/metaproxy/filters-enabled .
322 The include facility uses YAZ' yaz_xml_include_simple (YAZ 4.0.1).
326 Package based on YAZ version 4 and YAZ++ 1.2.0. It now includes a
327 development package to facilitate 3rd party Metaproxy modules.
329 --- 1.0.23 2010/01/04
331 Filter virt_db: Close backend filter session when Init rejected is received
332 from it (in which case it's not really closed yet). This will ensure we don't
333 run out of resources such as FDs in this case.
335 sru_z3950 filter: Accept any database (including those not listed).
337 --- 1.0.22 2009/12/03
339 Prepare for 64-bit YAZ. yazproxy will still work with YAZ++ 1.1.4 or
340 later which means YAZ 3.0.47 or later.
342 --- 1.0.20 2009/11/19
344 For filter virt_db, the database is a glob pattern and the virtual
345 database sections are consulted in the order given.
347 --- 1.0.19 2009/07/08
349 For filter multi, the target (for routing) may be given as a glob-pattern.
351 More documentation for filters virt_db and multi.
353 Update schema to allow for no database in sru_z3950 filter.
355 --- 1.0.18 2009/06/30
357 Added limit filter to put sleep (penalty) for heavy use.
359 Filter frontend_net may be configured to limit the number of new connections
360 from same IP to some value (connect-max).
362 Fixed the load_balance filter.
364 --- 1.0.17 2009/06/16
366 Fix path for metaproxy executable for Debian init.d script.
368 --- 1.0.16 2009/06/10
370 SRU to Z39.50 filter honors x-username and x-password. If only
371 x-username is given that translates to open authentication (Z39.50v2). If
372 both x-username and x-password is present that translates to idPass
373 authentication (Z39.50v3).
375 New facility to change current working directory (-w).
377 Update to upstream skeleton of init.d script. Should fix bug #2619.
379 Filter session_shared now caches records (used to only cache connections
382 Filter session_shared now invalidates a Z39.50 session if a server
383 returns -1 hits. This facility was also part of yazproxy and gets around
384 a bug in Voyager-based Z39.50 servers.
386 --- 1.0.15 2008/11/18
388 Fixed reference counting bug in Z39.50 client module (could cause SEGV).
390 --- 1.0.14 2008/06/09
392 Fixed the value of SRU record schema in searchRetrieve response. It was set
393 to a fixed value of "dc" before.
395 Serialize identical SRU requests. This is useful if HTTP client software
396 fires identical requests against metaproxy.
398 Allow Z39.50 target to be specified for SRU requests by using SRU extra
399 parameter x-target. Allows SRU to contact arbitrary Z39.50 targets and
400 avoid static configuration. This facility is handled by the sru_z3950 module
401 and the z3950_client module.
403 Allow maximum number of sockets to be used for a Z39.50 client by the
404 use of SRU extra parameter x-max-sockets. This facility is handled by the
405 sru_z3950 module and the z3950_client module.
407 --- 1.0.13.1 2008/02/29
409 Simplified check for Boost libraries.
411 --- 1.0.13 2008/02/29
413 First Debian package.
415 The sru_z9350 filter now recognizes SRU parameter z-target as being
416 a ZURL of the form host/database .
418 Mergetype may be specified for filter 'multi'.
420 --- 1.0.12 2007/09/19
422 Fixed problem in Makefile WRT library specifictions. This could produce
423 linker errors (when they should not happen).
425 Fixed bug #1341: MetaProxy returning different results. Problem was that
426 fix-up of record database did not normalize the database name.
428 Documentation updates for Windows compilation.
430 --- 1.0.11 2007/06/14
432 Fixed problem with logfile being truncated.
434 --- 1.0.10 2007/05/23
436 Fixed bug #1136: Access rights not enforced.
438 Extension for log module. The log category 'access' logs more details.
439 New category 'user-access' added which is simlar to 'access' but adds
440 the Z39.50 user as for all entries in a session.
444 Added support for configurable default/force target/vhost for module Z39.50
449 Implemented filter, session_shared, which optimizes usage of Z39.50
450 sessions and result sets.
452 New filter, record_transform, which converts MARC/XML records.
454 New filter, sru_z3950, which converts SRU to Z39.50 packages.
456 New filter, load_balance, in development.
458 New filter, zeerex_xplain.
460 XML framework for config files started.
462 Master RelaxNG Compact schema's are found in xml/schema/*.rnc,
463 RelaxNG XML schemas and XML Schema's are generated from RNC syntax.
464 XML config files are checked against RNG and XML Schema's.
466 XSLT transformation framework added in xml/xslt/*.xsl, consisting mainly of
467 LOC Marc21 stylesheets found at http://www.loc.gov/marcxml/xslt.
468 Added stylesheet explain2cqlpqftxt.xsl which transforms a standard SRU ZeeReX
469 explain record to YAZ CQL-to-PQF text config file.
473 Added 'timeout' setting for filter frontend_net which specifies the number
474 of seconds a session is idle before it is closed. Default timeout is
479 Database name in records returned set for virt_db/multi filters.
481 Filter session_shared now functional.
483 Log filter can be configured to write to a given file using 'filename'
484 element. Also information category can be specified with 'category'. If
485 filename is omitted, the log filter writes to stdout. See etc/config5.xml
490 Fixed compilation on Windows.
494 Added documentation for the hidenavailable option for the multi filter.
498 Fixed bug #573: Hide errors for individual servers. If the element
499 'hideunavailable' is given in the configuration, individual servers
500 being unavailable are hidden (unless all are unavailable).
502 Fixed bug #574: Database names are recognised case-sensitively.
504 Fixed bug #567: Fix up database name in Name-Plus-Record.
506 Fixed bug #568: Update win/makefile for VS 2005.
508 Fixed bug #569: Some options throws unknown exception.
512 More information about virtual hosts. The 'etc' directory is part of the
517 Build instructions for Windows. NMake makefile part of distribution tar.
523 Filters functional: auth_simple, backend_test, frontend_net, http_file,
524 log, multi, query_rewrite, template, virt_db, z3950_client.
526 Filters in development: session_shared.
528 Pseudo-filters: template, dl