3 zoom: fix memory leaks.
5 session_shared: maximum number of sessons is configurable. Default
6 value is 100. Result-sets for backends without named result sets are
7 only re-used if databases is identical for a search. This is under the
8 assumption that performance may suffer for those backends when
9 changing the database for each search.
11 multi: combines diagnostics from all backends. All diagnostics from
12 backends are combined into multiple non-surrogate diagnostics; rather
13 than just one diagnostic from first backend.
17 zoom: relay realm to cproxy parameter file.
19 Configuration: Allow filter collection element inside route. This
20 makes it possible to include multiple filters at once.
22 zoom: nocproxy also disables urlRecipe.
26 zoom: return diagnostic if CQL sortby conv fails. Diagnostic Bib-1 214
27 "Illegal sort relation" is returned. Gets translated to SRU diagnostic
28 90: "Unsupported direction value".
30 zoom: honor database argument nocproxy. This disables creating a content
31 connector session (for non-CF targets, usually) and also relays nocproxy
32 as database argument to a CF target.
36 zoom: Multiple proxy hosts may be given for proxy rich database
37 parameter. List is comma separated.
39 http_file: decodes URI paths properly. Does not return 404: not found
40 if no prefix are matches. Instead packages are passed on.
44 zoom: content-{user,password,proxy} are passed on to content proxy
45 system and takes precedence over user,password,proxy .
47 sru_z3950: SRU extra argument x-log-enable=1 enables a search response
48 with a log element including log material from children filters. At
49 this point, only the zoom filter uses this log facility. It will
50 eventually be used by other filters as well. In particular it might be
51 useful for this feature to track all filters in used during a search.
53 zoom: for x-log-enable=1, APDUs sent by ZOOM C, records as received
54 and queries as they are manipulated are logged.
56 zoom: extend addinfo with native diagnostics. Diagnostics as received
57 by ZOOM C are put into addinfo - including ZOOM, HTTP, SRU and Bib-1
58 diagnostics. This indicates both a backend diagnostic and the original
61 zoom: default urlRecipe value is ${md-electronic-url}
63 zoom: target profile setting sruVersion is recognized.
67 zoom: log target profile record fetched (AKA Torus).
71 Change target profile parameter CfSubDb to CfSubDB.
75 zoom: bug fix: realm was relayed to CF targets by mistake (realm only
76 makes sense to the zoom module itself).
80 zoom: realm may be given as part of database.
84 Fix Origin class assigment method; was removd by mistake in 1.3.12.
88 zoom: database args x-name=value are passed through to backend database.
90 SRU filter: user may specify session ID that is passed to log entries
91 that follows. It is specified by using x-session-id in the SRU arguments.
93 zoom: fix null pointer reference which would occur for bad url parameter
94 inside "torus" or if url was not given.
97 Fix bug in filter session_shared where sessions would not expire
98 properly (session ttl). This in turn could make the target close the
99 connection before expected and session_shared would return diagnostic
100 2: system temporarily available.
102 --- 1.3.10 2011/09/09
104 zoom: new target profile setting: sortmap_field. If sortmap_field is given
105 the field is mapped to the value for the sortmap. Values not matching
106 sortmap_field are passed verbatim.
108 zoom: new target profile setting: sortStrategy. One of: "z3950", "type7",
109 "cql", "sru11" or "embed". The "embed" chooses type-7 or CQL sortby
110 depending on whether RPN or CQL is actually sent to the target.
114 zoom: urlRecipe result is stored in <pz:metadata type="generated-url">.
116 zoom: For content proxy authentication is stored in param name
117 "auth", instead of "authentication".
121 zoom: relay schema in SRU mode. Previously recordSchema was not affected
126 zoom: new target profile element literalTransform that holds XSLT
127 (encoded as string) for target. Only if present and non-zero length it is
128 considered present. This takes precedence over transform.
130 Don't rely on trang anymore for Git checkout builds. Configuration in etc
131 will only be properly validated if trang is available. From now on only
132 relax NC files are bundled with the source dist.
134 Updates to check for Boost unit test (autoconf stuff). On MacOSX this
135 component was not detected when it should be.
139 z3950_client: mark non-surrogate diagnostics from backend.
141 zoom: a proxy may be specified for HTTP fetch of target profiles.
145 Honor piggyback. Makes some SRU targets behave that insist on
146 maximumRecords > 0, but also increases performance.
150 Fix dlpath in installed metaproxy.xml for RPM/Deb package. The
151 file was not update for libdir/metaproxy4 in version 1.3.2.
155 Change location of Metaproxy modules from libdir/metaproxy to
156 libdir/metaproxy4. Directory libdir/metaproxy is also owned by
157 libmetaproxy3 and, thus, should not be used by libmetaproxy4.
159 New facility to dump APDUs from zoom filter. Enabled by
160 <log apdu="true"/> in the zoom filter configuation.
162 zoom filter bug fix: SRU diagnostics received from backend was
163 not properly converted to Bib-1 diagnostics.
165 Package metaproxy depends on libmetaproxy4, same version.
169 zoom: fix a bug WRT passing authentication parameters to backends.
173 Fixes for windows Makefile.
175 --- 1.2.10 2011/07/25
177 Change major version of metaproxy library from 3 to 4. This in turn
178 makes new package names for Debian and RPM.
182 zoom: enable marc-8 encoding by default for usmarc and opac (in pz2
185 zoom: configurable element sets for record transforms.
187 zoom: the target profile based transform is specified by element_transform
188 in element torus of of the ZOOM filter configuration ; default value
189 is "pz2". Target profile based retrieval is specified by element_raw
190 in configuration. It will perform same steps, but omit the XSL transform.
191 Default value is "raw".
193 zoom: element set is omitted if not set in profile. But only if pz2
194 transform is in effect. Previously the default element set was to "F".
196 zoom: For non-CF targets database arguments are parsed. User may supply
197 db,user=myuser&password=mypass for non-CF targets. These values override
198 what's given the authentication from the target profile.
200 session_shared: fix reference to freed memory. Would occur if a search
201 response had non-surrogate diagnostics.
205 Route may be given for each port in frontend_net.
209 Documentation for zoom filter. Local target profiles may be specified.
211 Fixes for zoom filter.
215 First version with zoom filter.
219 Filter z3950_client may be configured to always send a close APDU
220 to backend target when connection/session is closed. This will only
221 happen if close APDU is not already sent. Enabled by configuration
222 for z3950_client (force_close).
224 Filter virt_db and multi: relay close APDU.
226 Filter virt_db and multi: relay init size parameters
227 preferredMessageSize and maximumRecordSize.
229 Filter sru_z3950: increase init sz parameters from 1MB to 10 MB.
233 RPM package for Metaproxy works for both SLES11 and Centos 5.5.
235 metaproxy-config: exec_prefix, libdir, includedir. Use these variables
236 as determined by configure.
238 RPM: Release includes 'indexdata' name. Use indexdata in release name so
239 this package can be distinguished from other vendors.
243 Fix filter multi: relay idAuthentication parameters.
247 Add metaproxy-config for returning compiler flags, libraries.
251 Fix --with-boost=PREFIX .
255 session_shared: fix use of maintenance thread.
257 Introduce 'start' method for filters and routers. It gets called after
258 configure and after fork, but before processing. This changes API -
259 from libmetaproxy2 to libmetaproxy3.
263 session_shared: ensure backend session is closed if init rejected
266 z3950_client: fix NULL ptr reference that could occur if two clients
267 connected concurrently and if max-sockets was in effect.
271 Fix bug 3497 - Metaproxy unstable while stopping.
273 Fix bug 3495 - SEGV in SRU filter.
277 Filter multi throws diagnostic 'Present Out of Range' when
278 appropriate - rather than returning 0 records.
280 Filter virt_db: fix bad result reuse. Could happen if a result
281 was overriden and a backend did not supported named result sets.
285 Filter log: category access logs diagnostics even if searchStatus
286 or presentStatus is 'success'.
290 The SRU to Z39.50 filter does repeated Z39.50 present requests
291 to fetch all records. Needed when a Z39.50 server returns partial
292 results (due to message size limits).
296 Metaproxy now kills all child processes that are spawned by
297 modules (in case of fork, exec).
301 Debian package now installs /etc/metaproxy/metaproxy.xml which
302 includes all XML files /etc/metaproxy/filters-enabled .
303 The include facility uses YAZ' yaz_xml_include_simple (YAZ 4.0.1).
307 Package based on YAZ version 4 and YAZ++ 1.2.0. It now includes a
308 development package to facilitate 3rd party Metaproxy modules.
310 --- 1.0.23 2010/01/04
312 Filter virt_db: Close backend filter session when Init rejected is received
313 from it (in which case it's not really closed yet). This will ensure we don't
314 run out of resources such as FDs in this case.
316 sru_z3950 filter: Accept any database (including those not listed).
318 --- 1.0.22 2009/12/03
320 Prepare for 64-bit YAZ. yazproxy will still work with YAZ++ 1.1.4 or
321 later which means YAZ 3.0.47 or later.
323 --- 1.0.20 2009/11/19
325 For filter virt_db, the database is a glob pattern and the virtual
326 database sections are consulted in the order given.
328 --- 1.0.19 2009/07/08
330 For filter multi, the target (for routing) may be given as a glob-pattern.
332 More documentation for filters virt_db and multi.
334 Update schema to allow for no database in sru_z3950 filter.
336 --- 1.0.18 2009/06/30
338 Added limit filter to put sleep (penalty) for heavy use.
340 Filter frontend_net may be configured to limit the number of new connections
341 from same IP to some value (connect-max).
343 Fixed the load_balance filter.
345 --- 1.0.17 2009/06/16
347 Fix path for metaproxy executable for Debian init.d script.
349 --- 1.0.16 2009/06/10
351 SRU to Z39.50 filter honors x-username and x-password. If only
352 x-username is given that translates to open authentication (Z39.50v2). If
353 both x-username and x-password is present that translates to idPass
354 authentication (Z39.50v3).
356 New facility to change current working directory (-w).
358 Update to upstream skeleton of init.d script. Should fix bug #2619.
360 Filter session_shared now caches records (used to only cache connections
363 Filter session_shared now invalidates a Z39.50 session if a server
364 returns -1 hits. This facility was also part of yazproxy and gets around
365 a bug in Voyager-based Z39.50 servers.
367 --- 1.0.15 2008/11/18
369 Fixed reference counting bug in Z39.50 client module (could cause SEGV).
371 --- 1.0.14 2008/06/09
373 Fixed the value of SRU record schema in searchRetrieve response. It was set
374 to a fixed value of "dc" before.
376 Serialize identical SRU requests. This is useful if HTTP client software
377 fires identical requests against metaproxy.
379 Allow Z39.50 target to be specified for SRU requests by using SRU extra
380 parameter x-target. Allows SRU to contact arbitrary Z39.50 targets and
381 avoid static configuration. This facility is handled by the sru_z3950 module
382 and the z3950_client module.
384 Allow maximum number of sockets to be used for a Z39.50 client by the
385 use of SRU extra parameter x-max-sockets. This facility is handled by the
386 sru_z3950 module and the z3950_client module.
388 --- 1.0.13.1 2008/02/29
390 Simplified check for Boost libraries.
392 --- 1.0.13 2008/02/29
394 First Debian package.
396 The sru_z9350 filter now recognizes SRU parameter z-target as being
397 a ZURL of the form host/database .
399 Mergetype may be specified for filter 'multi'.
401 --- 1.0.12 2007/09/19
403 Fixed problem in Makefile WRT library specifictions. This could produce
404 linker errors (when they should not happen).
406 Fixed bug #1341: MetaProxy returning different results. Problem was that
407 fix-up of record database did not normalize the database name.
409 Documentation updates for Windows compilation.
411 --- 1.0.11 2007/06/14
413 Fixed problem with logfile being truncated.
415 --- 1.0.10 2007/05/23
417 Fixed bug #1136: Access rights not enforced.
419 Extension for log module. The log category 'access' logs more details.
420 New category 'user-access' added which is simlar to 'access' but adds
421 the Z39.50 user as for all entries in a session.
425 Added support for configurable default/force target/vhost for module Z39.50
430 Implemented filter, session_shared, which optimizes usage of Z39.50
431 sessions and result sets.
433 New filter, record_transform, which converts MARC/XML records.
435 New filter, sru_z3950, which converts SRU to Z39.50 packages.
437 New filter, load_balance, in development.
439 New filter, zeerex_xplain.
441 XML framework for config files started.
443 Master RelaxNG Compact schema's are found in xml/schema/*.rnc,
444 RelaxNG XML schemas and XML Schema's are generated from RNC syntax.
445 XML config files are checked against RNG and XML Schema's.
447 XSLT transformation framework added in xml/xslt/*.xsl, consisting mainly of
448 LOC Marc21 stylesheets found at http://www.loc.gov/marcxml/xslt.
449 Added stylesheet explain2cqlpqftxt.xsl which transforms a standard SRU ZeeReX
450 explain record to YAZ CQL-to-PQF text config file.
454 Added 'timeout' setting for filter frontend_net which specifies the number
455 of seconds a session is idle before it is closed. Default timeout is
460 Database name in records returned set for virt_db/multi filters.
462 Filter session_shared now functional.
464 Log filter can be configured to write to a given file using 'filename'
465 element. Also information category can be specified with 'category'. If
466 filename is omitted, the log filter writes to stdout. See etc/config5.xml
471 Fixed compilation on Windows.
475 Added documentation for the hidenavailable option for the multi filter.
479 Fixed bug #573: Hide errors for individual servers. If the element
480 'hideunavailable' is given in the configuration, individual servers
481 being unavailable are hidden (unless all are unavailable).
483 Fixed bug #574: Database names are recognised case-sensitively.
485 Fixed bug #567: Fix up database name in Name-Plus-Record.
487 Fixed bug #568: Update win/makefile for VS 2005.
489 Fixed bug #569: Some options throws unknown exception.
493 More information about virtual hosts. The 'etc' directory is part of the
498 Build instructions for Windows. NMake makefile part of distribution tar.
504 Filters functional: auth_simple, backend_test, frontend_net, http_file,
505 log, multi, query_rewrite, template, virt_db, z3950_client.
507 Filters in development: session_shared.
509 Pseudo-filters: template, dl