3 zoom: Multiple proxy hosts may be given for proxy rich database
4 parameter. List is comma separated.
6 http_file: decodes URI paths properly. Does not return 404: not found
7 if no prefix are matches. Instead packages are passed on.
11 zoom: content-{user,password,proxy} are passed on to content proxy
12 system and takes precedence over user,password,proxy .
14 sru_z3950: SRU extra argument x-log-enable=1 enables a search response
15 with a log element including log material from children filters. At
16 this point, only the zoom filter uses this log facility. It will
17 eventually be used by other filters as well. In particular it might be
18 useful for this feature to track all filters in used during a search.
20 zoom: for x-log-enable=1, APDUs sent by ZOOM C, records as received
21 and queries as they are manipulated are logged.
23 zoom: extend addinfo with native diagnostics. Diagnostics as received
24 by ZOOM C are put into addinfo - including ZOOM, HTTP, SRU and Bib-1
25 diagnostics. This indicates both a backend diagnostic and the original
28 zoom: default urlRecipe value is ${md-electronic-url}
30 zoom: target profile setting sruVersion is recognized.
34 zoom: log target profile record fetched (AKA Torus).
38 Change target profile parameter CfSubDb to CfSubDB.
42 zoom: bug fix: realm was relayed to CF targets by mistake (realm only
43 makes sense to the zoom module itself).
47 zoom: realm may be given as part of database.
51 Fix Origin class assigment method; was removd by mistake in 1.3.12.
55 zoom: database args x-name=value are passed through to backend database.
57 SRU filter: user may specify session ID that is passed to log entries
58 that follows. It is specified by using x-session-id in the SRU arguments.
60 zoom: fix null pointer reference which would occur for bad url parameter
61 inside "torus" or if url was not given.
64 Fix bug in filter session_shared where sessions would not expire
65 properly (session ttl). This in turn could make the target close the
66 connection before expected and session_shared would return diagnostic
67 2: system temporarily available.
71 zoom: new target profile setting: sortmap_field. If sortmap_field is given
72 the field is mapped to the value for the sortmap. Values not matching
73 sortmap_field are passed verbatim.
75 zoom: new target profile setting: sortStrategy. One of: "z3950", "type7",
76 "cql", "sru11" or "embed". The "embed" chooses type-7 or CQL sortby
77 depending on whether RPN or CQL is actually sent to the target.
81 zoom: urlRecipe result is stored in <pz:metadata type="generated-url">.
83 zoom: For content proxy authentication is stored in param name
84 "auth", instead of "authentication".
88 zoom: relay schema in SRU mode. Previously recordSchema was not affected
93 zoom: new target profile element literalTransform that holds XSLT
94 (encoded as string) for target. Only if present and non-zero length it is
95 considered present. This takes precedence over transform.
97 Don't rely on trang anymore for Git checkout builds. Configuration in etc
98 will only be properly validated if trang is available. From now on only
99 relax NC files are bundled with the source dist.
101 Updates to check for Boost unit test (autoconf stuff). On MacOSX this
102 component was not detected when it should be.
106 z3950_client: mark non-surrogate diagnostics from backend.
108 zoom: a proxy may be specified for HTTP fetch of target profiles.
112 Honor piggyback. Makes some SRU targets behave that insist on
113 maximumRecords > 0, but also increases performance.
117 Fix dlpath in installed metaproxy.xml for RPM/Deb package. The
118 file was not update for libdir/metaproxy4 in version 1.3.2.
122 Change location of Metaproxy modules from libdir/metaproxy to
123 libdir/metaproxy4. Directory libdir/metaproxy is also owned by
124 libmetaproxy3 and, thus, should not be used by libmetaproxy4.
126 New facility to dump APDUs from zoom filter. Enabled by
127 <log apdu="true"/> in the zoom filter configuation.
129 zoom filter bug fix: SRU diagnostics received from backend was
130 not properly converted to Bib-1 diagnostics.
132 Package metaproxy depends on libmetaproxy4, same version.
136 zoom: fix a bug WRT passing authentication parameters to backends.
140 Fixes for windows Makefile.
142 --- 1.2.10 2011/07/25
144 Change major version of metaproxy library from 3 to 4. This in turn
145 makes new package names for Debian and RPM.
149 zoom: enable marc-8 encoding by default for usmarc and opac (in pz2
152 zoom: configurable element sets for record transforms.
154 zoom: the target profile based transform is specified by element_transform
155 in element torus of of the ZOOM filter configuration ; default value
156 is "pz2". Target profile based retrieval is specified by element_raw
157 in configuration. It will perform same steps, but omit the XSL transform.
158 Default value is "raw".
160 zoom: element set is omitted if not set in profile. But only if pz2
161 transform is in effect. Previously the default element set was to "F".
163 zoom: For non-CF targets database arguments are parsed. User may supply
164 db,user=myuser&password=mypass for non-CF targets. These values override
165 what's given the authentication from the target profile.
167 session_shared: fix reference to freed memory. Would occur if a search
168 response had non-surrogate diagnostics.
172 Route may be given for each port in frontend_net.
176 Documentation for zoom filter. Local target profiles may be specified.
178 Fixes for zoom filter.
182 First version with zoom filter.
186 Filter z3950_client may be configured to always send a close APDU
187 to backend target when connection/session is closed. This will only
188 happen if close APDU is not already sent. Enabled by configuration
189 for z3950_client (force_close).
191 Filter virt_db and multi: relay close APDU.
193 Filter virt_db and multi: relay init size parameters
194 preferredMessageSize and maximumRecordSize.
196 Filter sru_z3950: increase init sz parameters from 1MB to 10 MB.
200 RPM package for Metaproxy works for both SLES11 and Centos 5.5.
202 metaproxy-config: exec_prefix, libdir, includedir. Use these variables
203 as determined by configure.
205 RPM: Release includes 'indexdata' name. Use indexdata in release name so
206 this package can be distinguished from other vendors.
210 Fix filter multi: relay idAuthentication parameters.
214 Add metaproxy-config for returning compiler flags, libraries.
218 Fix --with-boost=PREFIX .
222 session_shared: fix use of maintenance thread.
224 Introduce 'start' method for filters and routers. It gets called after
225 configure and after fork, but before processing. This changes API -
226 from libmetaproxy2 to libmetaproxy3.
230 session_shared: ensure backend session is closed if init rejected
233 z3950_client: fix NULL ptr reference that could occur if two clients
234 connected concurrently and if max-sockets was in effect.
238 Fix bug 3497 - Metaproxy unstable while stopping.
240 Fix bug 3495 - SEGV in SRU filter.
244 Filter multi throws diagnostic 'Present Out of Range' when
245 appropriate - rather than returning 0 records.
247 Filter virt_db: fix bad result reuse. Could happen if a result
248 was overriden and a backend did not supported named result sets.
252 Filter log: category access logs diagnostics even if searchStatus
253 or presentStatus is 'success'.
257 The SRU to Z39.50 filter does repeated Z39.50 present requests
258 to fetch all records. Needed when a Z39.50 server returns partial
259 results (due to message size limits).
263 Metaproxy now kills all child processes that are spawned by
264 modules (in case of fork, exec).
268 Debian package now installs /etc/metaproxy/metaproxy.xml which
269 includes all XML files /etc/metaproxy/filters-enabled .
270 The include facility uses YAZ' yaz_xml_include_simple (YAZ 4.0.1).
274 Package based on YAZ version 4 and YAZ++ 1.2.0. It now includes a
275 development package to facilitate 3rd party Metaproxy modules.
277 --- 1.0.23 2010/01/04
279 Filter virt_db: Close backend filter session when Init rejected is received
280 from it (in which case it's not really closed yet). This will ensure we don't
281 run out of resources such as FDs in this case.
283 sru_z3950 filter: Accept any database (including those not listed).
285 --- 1.0.22 2009/12/03
287 Prepare for 64-bit YAZ. yazproxy will still work with YAZ++ 1.1.4 or
288 later which means YAZ 3.0.47 or later.
290 --- 1.0.20 2009/11/19
292 For filter virt_db, the database is a glob pattern and the virtual
293 database sections are consulted in the order given.
295 --- 1.0.19 2009/07/08
297 For filter multi, the target (for routing) may be given as a glob-pattern.
299 More documentation for filters virt_db and multi.
301 Update schema to allow for no database in sru_z3950 filter.
303 --- 1.0.18 2009/06/30
305 Added limit filter to put sleep (penalty) for heavy use.
307 Filter frontend_net may be configured to limit the number of new connections
308 from same IP to some value (connect-max).
310 Fixed the load_balance filter.
312 --- 1.0.17 2009/06/16
314 Fix path for metaproxy executable for Debian init.d script.
316 --- 1.0.16 2009/06/10
318 SRU to Z39.50 filter honors x-username and x-password. If only
319 x-username is given that translates to open authentication (Z39.50v2). If
320 both x-username and x-password is present that translates to idPass
321 authentication (Z39.50v3).
323 New facility to change current working directory (-w).
325 Update to upstream skeleton of init.d script. Should fix bug #2619.
327 Filter session_shared now caches records (used to only cache connections
330 Filter session_shared now invalidates a Z39.50 session if a server
331 returns -1 hits. This facility was also part of yazproxy and gets around
332 a bug in Voyager-based Z39.50 servers.
334 --- 1.0.15 2008/11/18
336 Fixed reference counting bug in Z39.50 client module (could cause SEGV).
338 --- 1.0.14 2008/06/09
340 Fixed the value of SRU record schema in searchRetrieve response. It was set
341 to a fixed value of "dc" before.
343 Serialize identical SRU requests. This is useful if HTTP client software
344 fires identical requests against metaproxy.
346 Allow Z39.50 target to be specified for SRU requests by using SRU extra
347 parameter x-target. Allows SRU to contact arbitrary Z39.50 targets and
348 avoid static configuration. This facility is handled by the sru_z3950 module
349 and the z3950_client module.
351 Allow maximum number of sockets to be used for a Z39.50 client by the
352 use of SRU extra parameter x-max-sockets. This facility is handled by the
353 sru_z3950 module and the z3950_client module.
355 --- 1.0.13.1 2008/02/29
357 Simplified check for Boost libraries.
359 --- 1.0.13 2008/02/29
361 First Debian package.
363 The sru_z9350 filter now recognizes SRU parameter z-target as being
364 a ZURL of the form host/database .
366 Mergetype may be specified for filter 'multi'.
368 --- 1.0.12 2007/09/19
370 Fixed problem in Makefile WRT library specifictions. This could produce
371 linker errors (when they should not happen).
373 Fixed bug #1341: MetaProxy returning different results. Problem was that
374 fix-up of record database did not normalize the database name.
376 Documentation updates for Windows compilation.
378 --- 1.0.11 2007/06/14
380 Fixed problem with logfile being truncated.
382 --- 1.0.10 2007/05/23
384 Fixed bug #1136: Access rights not enforced.
386 Extension for log module. The log category 'access' logs more details.
387 New category 'user-access' added which is simlar to 'access' but adds
388 the Z39.50 user as for all entries in a session.
392 Added support for configurable default/force target/vhost for module Z39.50
397 Implemented filter, session_shared, which optimizes usage of Z39.50
398 sessions and result sets.
400 New filter, record_transform, which converts MARC/XML records.
402 New filter, sru_z3950, which converts SRU to Z39.50 packages.
404 New filter, load_balance, in development.
406 New filter, zeerex_xplain.
408 XML framework for config files started.
410 Master RelaxNG Compact schema's are found in xml/schema/*.rnc,
411 RelaxNG XML schemas and XML Schema's are generated from RNC syntax.
412 XML config files are checked against RNG and XML Schema's.
414 XSLT transformation framework added in xml/xslt/*.xsl, consisting mainly of
415 LOC Marc21 stylesheets found at http://www.loc.gov/marcxml/xslt.
416 Added stylesheet explain2cqlpqftxt.xsl which transforms a standard SRU ZeeReX
417 explain record to YAZ CQL-to-PQF text config file.
421 Added 'timeout' setting for filter frontend_net which specifies the number
422 of seconds a session is idle before it is closed. Default timeout is
427 Database name in records returned set for virt_db/multi filters.
429 Filter session_shared now functional.
431 Log filter can be configured to write to a given file using 'filename'
432 element. Also information category can be specified with 'category'. If
433 filename is omitted, the log filter writes to stdout. See etc/config5.xml
438 Fixed compilation on Windows.
442 Added documentation for the hidenavailable option for the multi filter.
446 Fixed bug #573: Hide errors for individual servers. If the element
447 'hideunavailable' is given in the configuration, individual servers
448 being unavailable are hidden (unless all are unavailable).
450 Fixed bug #574: Database names are recognised case-sensitively.
452 Fixed bug #567: Fix up database name in Name-Plus-Record.
454 Fixed bug #568: Update win/makefile for VS 2005.
456 Fixed bug #569: Some options throws unknown exception.
460 More information about virtual hosts. The 'etc' directory is part of the
465 Build instructions for Windows. NMake makefile part of distribution tar.
471 Filters functional: auth_simple, backend_test, frontend_net, http_file,
472 log, multi, query_rewrite, template, virt_db, z3950_client.
474 Filters in development: session_shared.
476 Pseudo-filters: template, dl