CVS log for interchange/lib/Vend/Glimpse.pm

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* Updated copyright headers to 2007 (closes bug #102)

* Added GPL and copyright headers to a few files that were missing them.

New Free Software Foundation Address in headers of various files

New Free Software Foundation Address in headers of various files

Big copyright and version number update to prepare for 5.3.2 release.

Remove some duplicate glob assignments for subroutines in other modules.
To do this easily, I did "expand -t4" and "LC_ALL=C sort -u".

Fix bug that caused mv_substring_match never to work. Glimpse only allows
setting substring or full word matches per search, not per word, so if any
word is flagged as a substring match, the whole search is. Otherwise, it's
a full word match.

Bug fixed and patch provided by Ethan Rowe <ethan@endpoint.com>. Thanks!

Implement mv_hide_field search parameter and add Glimpse support for it
and the HIDE_FIELD database option.

Fix broken Glimpse module:

(1) Call to allowed_file() failed because Vend::File wasn't imported.

(2) Call to get_return() had wrong option and returned a ref.

And only return hash when explicitly requested, as with Vend::TextSearch.

The great copyright, email address, URL, and version update.

* Add new Vend::File module with minimal functions.

* Relocate following routines (and their subsidiaries) from Vend::Util:

	canonpath
	catdir
	catfile
	exists_filename
	file_modification_time
	file_name_is_absolute
	get_filename
	lockfile
	path
	readfile
	readfile_db
	set_lock_type
	unlockfile
	writefile

  Added stubs so that package-based calls to those routines will not
  break software.

* Added CatalogUser directive that allows setting in interchange.cfg
  of allowed username that is used for access to absolute-path names.

  	CatalogUser  foundation  joe
  	CatalogUser  reports     jane

  This sets the user for allowed_file() for further read/write checks
  based on username.

* Created allowed_file() routine and replaced all current inline checks
  for NoAbsolute with call to that routine. It behaves as:

  NoAbsolute is No: all files are accessible, always

  Allowed for read/write:
  	Path name is relative with no ..
  	Path name is absolute but in the catalog directory
  	Path name is absolute but in a TemplateDir

  Allowed for read:
	CatalogUser set to a valid username and file is readable by that user
	CatalogUser set to a valid username and file is readable by a group
	 containing that user

  Allowed for write:
	CatalogUser set to a valid username and file is writable by that user
	CatalogUser set to a valid username and file is writable by a group
	 containing that user

* Changed display_special_page so that special page entries with ../
  will not break things.

* TODO:

	-- Code read for open() calls.
	-- Code read for chmod() calls.
	-- Code read for unlink() calls.

* Passes all regression tests; takes an order on foundation; runs UI including
  file navigator.

updated LINUXIA branch to 4.9 sources in order to use it as testbed again

Sweeping update of Akopia/Red Hat references, to prepare for 4.8 release
with current Interchange URLs and contact information.

* Remove min_string test from Search.pm, where it never really was used
  or called due to mv_min_string default being 0.

* Place mv_min_string check back in Glimpse where it was intended in the first
  place.

* Resolves Bugzilla #255 reported by dst@vernet.gr (Dimitris Tsamitros).

* Remove min_string test from Search.pm, where it never really was used
  or called due to mv_min_string default being 0.

* Place mv_min_string check back in Glimpse where it was intended in the first
  place.

* Resolves Bugzilla #255.

* Get rid of mv_range_look check now that it will be deprecated and removed
  from docs.

Add option to disable matchlimit entirely, with ml=all or ml=none.
Allow default of 50 to be changed in catalog variable MV_DEFAULT_MATCHLIMIT.

Big copyright date update. This will be the last time that Red Hat
copyright notices get updated en masse, since the bulk of new code will
very likely come from non-Red Hat employees.

Update version number and copyright year, to prepare for the eventual
day when we release version 4.8.4.

* Add new MIRROR parameter for databases. This allows creation of a
  DBM or Memory mirror.

  Sequence is:

	1. Table is always imported at config time.
	2. Table is only imported once.
	3. Text file is not required, but should be set so export
	   can work properly and so there is a placeholder.

  A complete configuration is:

	  Database  products_mem  products_mem.txt  TAB
	  Database  products_mem  MIRROR  products
	  Database  products_mem  MEMORY  1

  MIRROR name is not set in stone yet, probably not apropos
  enough; suggestions are welcome.

  Benchmarks for 1000 separate (i.e. tag_data, no caching)
  accesses (repeated tries show these are representative):

	Doing products_mem:
	Class=MEMORY DSN=
	Data returned 247 bytes
	TIME=0.200

	Doing products:
	Class=DBI DSN=dbi:mysql:test_mfound
	Data returned 247 bytes
	TIME=0.670

	Doing alias_mem:
	Class=MEMORY DSN=
	Data returned 9 bytes
	TIME=0.180

	Doing alias:
	Class=DBI DSN=dbi:Pg:dbname=wikicms
	Data returned 9 bytes
	TIME=0.700

	Doing wiki_mem:
	Class=GDBM DSN=
	Data returned 400 bytes
	TIME=0.300

	Doing wiki_mem2:
	Class=MEMORY DSN=
	Data returned 400 bytes
	TIME=0.180

	Doing wiki:
	Class=DBI DSN=dbi:Pg:dbname=wikicms
	Data returned 400 bytes
	TIME=0.710

 Gains should be even bigger as no database connections are needed
 on a busy system.

	* Make the DbSearch module search references and not tab-joined lines.

	* Search.pm now modifies its behavior for $limit_sub->() and $return_sub->()
	  to create a reference if needed.

	* This solves the tab-delimited wrong-search-result problem while
	  increasing performance up to 20% on large database records.

	* Slight change to each_nokey() routine -- it returns a
	  reference instead of a list. This should have no side-effect
	  unless someone happened to use the
	  Vend::Table::*::each_nokey() routine somewhere in custom code.
	  Certainly this is not documented as part of the API, and we
	  never use it in any of our stuff.

	* Change passes regression tests 100%. Glimpse is not really
	  tested though I anticipate no problems.

	* Fix Glimpse case sensitivity bug around since Minivend 4.000000.

Upping major version number after trunk/branch switch.

Move DEV_4_7_0 development branch to repository trunk.

Update copyright notices and email addresses.
Standardize module headers and remove a few shebang lines.

Whitespace changes (diff -b -B will report nothing except below):

4 additional lines of diff (whitespace not caught by -b -B)

stylistic changes

Server:
	necessary change to support minivend->interchange script rename

DbSearch/Glimpse/TextSearch:
	comment change s/MINIVEND/INTERCHANGE on line 5

Util:
	changed -t option in syslogging routine from minivend to interchange

Added multiple security fixes.
Added beginnings of IPC to perl programs.
Added Sub (catalog.cfg) link to [PREFIX-exec].
Added hs (head skip) option to [import ....] tag.

Changed Interchange name all over, minor exceptions being mvfaq.pod and
mvrpm.pod. Changed copyright notice to Akopia.

Initial import of changed Challenger with UI instead of Minimate.

Initial revision