root / pykota / trunk / NEWS @ 2062

Revision 2062, 58.8 kB (checked in by jalet, 20 years ago)

Introduces the new 'trustjobsize' directive to workaround some printers
generating unstable internal page counter values when queried through SNMP.

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1# $Id$
2
3PyKota - Print Quota for CUPS and LPRng
4
5(c) 2003, 2004, 2005 Jerome Alet <alet@librelogiciel.com>
6This program is free software; you can redistribute it and/or modify
7it under the terms of the GNU General Public License as published by
8the Free Software Foundation; either version 2 of the License, or
9(at your option) any later version.
10
11This program is distributed in the hope that it will be useful,
12but WITHOUT ANY WARRANTY; without even the implied warranty of
13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14GNU General Public License for more details.
15
16You should have received a copy of the GNU General Public License
17along with this program; if not, write to the Free Software
18Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
19
20============================================================
21
22PyKota NEWS :
23       
24    - 1.21alpha25 :
25   
26        - The job's size is now always precomputed, even when
27          'enforcement' is not set to 'strict'.
28         
29        - Introduction of the new 'trustjobsize' configuration directive
30          to workaround some problematic printers. See the sample
31          configuration file for details.
32         
33    - 1.21alpha24 :
34   
35        - Big database structure changes. An upgrade script
36          is now included for PostgreSQL. LDAP users may just
37          want to copy the new schema in place.
38         
39        - edpykota now recognizes the -o | --overcharge command line
40          option to set an overcharging or undercharging factor
41          on each print job's cost for a particular user.
42         
43        - repykota's output format has changed an is not limited to 
44          80 characters wide anymore. People who used to parse
45          repykota's output in their own tools are strongly advised
46          to parse dumpykota's output instead.
47         
48        - Introduction of the new 'maxdenybanners' configuration directive
49          to allow up to N (the directive's value) deny banners to be
50          printed even if the print account is forbidden to print.
51         
52        - Better detection of the number of copies in the PostScript parser.
53       
54    - 1.21alpha23 :
55   
56        - Traditional Chinese translation added.
57   
58        - Several fixes and performance improvements with the LDAP backend.
59       
60    - 1.21alpha22 :
61   
62        - edpykota's --delete command line option doesn't consider
63          '*' to be the default argument anymore :-)
64         
65    - 1.21alpha21 :
66   
67        - dumpykota.cgi can now be run as a normal user as opposed to
68          a PyKota administrator. No read access to pykotadmin.conf is
69          necessary anymore. This CGI scripts now honors the REMOTE_USER
70          environment variable just like printquota.cgi does, see
71          the file cgi-bin/README for details.
72          The command line tool dumpykota must still be run by a PyKota
73          administrator.
74         
75        - Fix exception's name error due to a change in recent versions
76          of PygreSQL.   
77         
78    - 1.21alpha20 :
79         
80        - Big bug fix wrt the datelimit field which was never reset.
81         
82    - 1.21alpha19 :
83   
84        - Introduction of the new dumpykota.cgi CGI script, which
85          allows third party tools like phpPrintAnalyzer to be
86          interfaced in real time with PyKota. To use it you
87          may have to change your web server's configuration,
88          please see pykota/cgi-bin/README
89         
90    - 1.21alpha18 :
91   
92        - Now dumpykota can dump the job history into CUPS' page_log
93          format (even when the printing system is LPRng). This allows
94          people to use tools like PrintAnalyzer or phpPrintAnalyzer
95          (two completely different beasts) with PyKota.
96         
97    - 1.21alpha17 :
98     
99        - Fixed field type's name in XML dumps.
100       
101        - Now drops priviledges to user 'pykota' when launched as root
102          (directly or as a CUPS backend), if such an user exists.
103         
104        - Fixed PCL3/4/5 parser for some drivers' output.
105       
106    - 1.21alpha16 :
107   
108        - fixed several recently introduced bugs in LDAP backend code,
109          thanks to Matt Hyclak.
110         
111    - 1.21alpha15 :
112     
113        - Normalized field names between LDAP and PostgreSQL backends
114          in dumpykota's output.
115         
116        - dumpykota filtering capabilities are now supported within
117          the LDAP backend too.
118         
119    - 1.21alpha14 :
120   
121        - dumpykota now supports extended filtering possibilities
122          with the PostgreSQL backend (LDAP support will come soon).
123         
124    - 1.21alpha13 :
125   
126        - Added a --debug command line option to pkpgcounter, so
127          that people may see what really happens, and what will
128          be available in the future :-)
129         
130    - 1.21alpha12 :
131   
132        - Fixed a bug with non standard pkbanner command lines.
133       
134        - Now logs as errors the differences between precomputed and
135          computed job sizes. **CUPS only for now**
136         
137    - 1.21alpha11 :
138   
139        - Now user and group print quota entries can be stored directly
140          below the user or group with the LDAP backend, using them
141          as branches. Thanks to Stefan Wold for the patch.
142          See the sample configuration file for details.
143         
144        - TLS is now supported with the LDAP backend. Thanks to Stefan
145          Wold for the patch.
146          See the sample configuration file for details.
147         
148        - edpkota now accepts the -U | --used value command line argument
149          to preset the page counters to an initial value. Thanks to
150          Wilson Roberto Afonso and Matt Hyclak for the patch.
151         
152    - 1.21alpha10 :
153   
154        - Now automatically reconnects up to three times if the LDAP server
155          returned an error, possibly due to a timeout.
156         
157    - 1.21alpha9 :
158   
159        - Now searches the configuration files in 'pykota' system user's
160          home directory. The 'pykota' system user and group have
161          to be created by the system administrator, and given
162          sufficient permissions to PyKota's configuration files.
163         
164    - 1.21alpha8 :
165   
166        - Added the new reject_unknown directive to reject the
167          creation of user or groups which are unknown to the system.
168         
169    - 1.21alpha7 :
170   
171        - Introduction of the pkmail email gateway.
172       
173    - 1.21alpha6 :
174   
175        - Fix for LPRng filenames.
176       
177        - Added Turkish translation thanks to Baris Cicek.
178       
179    - 1.21alpha5 :
180   
181        - Improved ESC/P2 miniparser for Stylus Photo printers.
182       
183        - Implemented the --savetoner command line option to pkbanner.
184       
185        - Improved pkbanner's help and messages.
186       
187    - 1.21alpha4 :
188   
189        - Fixed job's data file detection code for LPRng.
190       
191        - Fixed a problem with PJL and PowerSave mode,
192          thanks to Wilson Roberto Afonso.
193       
194    - 1.21alpha3 :
195   
196        - PyKota can now generate its own banners, and either account
197          for them or not, depending on newly introduced directives
198          in pykota.conf
199          Thanks to Matt Hyclak for the patch.
200         
201    - 1.21alpha2 :
202   
203        - Installation script is now non interactive again, as it should
204          have stayed from the beginning. Dependencies checking can
205          be done by launching the checkdeps.py command.
206         
207    - 1.21alpha1 :
208   
209        - added an IPP messages miniparser. Extraction of the client
210          hostname is now considered to be fiable, at least until
211          the CUPS developpers change something...
212       
213    - 1.20 :
214   
215        - Version number changed.
216       
217    - 1.20beta :
218   
219        - Norwegian (Bokm� preliminary translation added.
220       
221        - German translation was finalized.
222       
223        - Greek translation was finalized.
224       
225        - For urgent legal reasons, a "privacy" directive has been added
226          to pykota.conf, to hide jobs' title, filename and options
227          in the history.
228         
229        - Minor changes in the debian directory.
230       
231    - 1.20alpha27 :
232   
233        - Fixed many problems with translation files. In particular
234          the brasilian portuguese translation file was incorrectly
235          installed into the french "breton" locale directory.
236         
237        - Finished French translation. 
238         
239    - 1.20alpha26 :
240   
241        - LPRng support code should now better detect network
242          printers' hostnames or IP addresses.
243         
244        - Fix for recently introduced bug in LPRng support.
245       
246        - Fix for incorrect locale setting when starting.
247       
248    - 1.20alpha25 :
249   
250        - pkprinters allows --list to normal users, but require user
251          to be a PyKota administrator when another command line
252          option is used.
253         
254        - pkhint doesn't use absolute path to search for helper commands
255          anymore.
256         
257        - Spanish translation ready for 1.20.   
258       
259    - 1.20alpha24 :
260   
261        - Now warnpykota only warns users limited by balance once.
262       
263        - Now warnpykota only warns users who have ever printed,
264          to not cause confusion to users who have just opened
265          their account.
266       
267        - Prepared help messages for translations.
268       
269    - 1.20alpha23 :
270   
271        - Add workaround for locale problem.
272       
273    - 1.20alpha22 :
274   
275        - Hopefully final fix for data encoding charset.
276       
277        - edpykota now refuse to work if the user is not a PyKota admin.
278       
279        - Fixes a recently introduced bug with users groups and PostgreSQL.
280       
281    - 1.20alpha21 :
282   
283        - Now dumpykota refuses to launch if the current user is not
284          a PyKota administrator (a PyKota administrator is an user
285          allowed to read the pykotadmin.conf file).
286         
287        - Now any PyKota administrator can use repykota and warnpykota
288          with additionnal arguments, not only the root user.
289         
290        - Improved documentation a bit.
291       
292    - 1.20alpha20 :
293   
294        - Reduced delay in internal SNMP and PJL_over_TCP handlers
295          from 2 to 1 second.
296       
297        - dumpykota can now output XML.
298       
299    - 1.20alpha19 :
300   
301        - Improved user groups and user groups quotas dumps in dumpykota.
302       
303        - Finished implementation of LDAP support in dumpykota.
304       
305        - The md5 sum of the job's datas is now available as an
306          hexadecimal digest in the PYKOTAMD5SUM environment variable.
307         
308        - The description, filename, title, and options fields
309          are now stored as UTF-8 strings in both LDAP and PostgreSQL.
310          Proper charset is used during extraction from the database.
311         
312    - 1.20alpha18 :
313   
314        - Experimental autopykota command to initialize user
315          account and quota entries on first print while not
316          resetting the balance value if not needed.
317         
318        - Added the new "winbind_separator" directive to strip
319          out the Samba/Winbind domain name while printing if
320          needed (Off by default).
321         
322    - 1.20alpha17 :
323   
324        - Added --hardreset command line option to edpykota.
325       
326        - Fixed problem with accented chars in title, filename
327          or options and LDAP backend.
328         
329    - 1.20alpha16 :
330   
331        - Internal handling of socket based PJL queries over
332          port tcp/9100 is now available with the magic
333          'pjl' value in the hardware accounter.
334         
335    - 1.20alpha15 :
336   
337        - LDAP pykotaAccountBalance objects were always created
338          attached to the pykotaUser objects. This is now
339          fixed and the value of balancebase in pykota.conf
340          is now correctly used.
341         
342    - 1.20alpha14 :
343   
344        - Belgian translations added (copy of the french ones).
345       
346        - External hardware accounter now loops until
347          a result can be read correctly.
348         
349        - pkhint now suggest the internal snmp handling instead
350          of the external one.
351         
352    - 1.20alpha13 :
353     
354        - Hardware accounter now accepts the special
355          'snmp' value, meaning ALL is done from main code
356          without launching any subprocess.
357          You need the http://pysnmp.sf.net Python module
358          for this to work (tested with v3.4.2)
359         
360        - Increased delay between two loops iterations 
361          to 2 seconds in waitprinter.sh to diminish
362          CPU load.
363         
364    - 1.20alpha12 :
365   
366        - waitprinter.sh rewritten from scratch to wait
367          for printer status stabilization.
368       
369    - 1.20alpha11 :
370   
371        - Generic data dumper 'dumpykota' introduced.
372          Works only with PostgreSQL backend for now.
373         
374    - 1.20alpha10 :
375   
376        - Added fix for incorrect job's size computation when
377          hardware accounting fails.
378         
379    - 1.20alpha9 :
380   
381        - Small fixes wrt subprocesses.
382       
383    - 1.20alpha8 :
384   
385        - Added full support of PCL3 : HP Deskjet printers are now
386          supported.
387       
388    - 1.20alpha7 :
389   
390        - First draft of PCL3GUI (Deskjet 640C for example) analyzer.
391          Needs more work, but no documentation is available.
392       
393    - 1.20alpha6 :
394     
395        - Improved mailandpopup.sh script.
396       
397        - Small fixes for LPRng.
398       
399        - Now exports PYKOTAPRINTERHOSTNAME for network printers'
400          hostname or IP address. Set to 'localhost' when not
401          meaningful.
402         
403        - Fixed issue with how mod_auth_ldap Apache modules
404          fills the REMOTE_USER environment variable.
405         
406        - Fixed a bug in LDAP user deletion code.
407       
408    - 1.20alpha5 :
409     
410        - Introduces the new configuration directive 'onaccountererror'
411          to specify what must be done whenever the software or
412          hardware accounter fails. Allowed values are 'continue' and
413          'stop' (default).
414         
415        - Minor fix in software accounter for a recently introduced
416          problem.
417         
418    - 1.20alpha4 :
419   
420        - Added support for more ghostscript devices in ESC/P2
421          analyzer : stcolor, st800, escp, escpc are now supported.
422         
423    - 1.20alpha3 :
424       
425        - Small improvement in PostScript parser to avoid being
426          fooled by a change in number of copies :
427          The user can't ask for 200 copies of page 1 and 1 copy
428          of page 2 to fool PyKota anymore :
429          this would have been accounted for as 1 copy only, but
430          now the maximum value seen is used.
431         
432        - Relax checks for PCL5 header to accomodate some strange
433          printer drivers.
434         
435        - Now hardware accounting method works like software
436          accounting method wrt the subprocess' output.
437         
438        - Hardware and Software accounting stop the print queue 
439          when the accounting subprocess didn't work. This will
440          be configurable in the near future.
441         
442    - 1.20alpha2 :
443   
444        - Now software accounting method reads accounter's
445          answer until a line with a single integer is
446          obtained or until all of its output has been read.
447          This should fix the problem some people have
448          when strange locale related messages are sent
449          when running subprocesses (Solaris only ?).
450         
451        - First version of ESC/P2 analyzer. Seems to work
452          ok at least with 'epson', 'epsonc', 'eps9mid'
453          and 'esp9high' ghostscript devices. Needs more
454          work to correctly analyze other devices.
455       
456    - 1.20alpha1 :
457   
458        - Fixed problem with number of copies in PCLXL parser.
459       
460        - Fixed problem with number of copies in PCL5 parser,
461          when number of copies was set outside of and before first
462          page.
463       
464        - Added workaround for number of copies directly set in
465          PostScript code.
466         
467        - Added german translation.
468       
469        - Fixed problem on first print for user group quota when
470          "enforcement: strict" is used.
471       
472        - Fixed interpolation problem in french translation.
473       
474    - 1.19 :
475   
476        - Updated existing translations.   
477       
478        - Added final Thai and Greek translations.
479       
480        - Minor last minute bug fixes.
481       
482    - 1.19beta :
483   
484        - LPRng support for both software and hardware accounting seems
485          to be OK.
486         
487        - Translation files fixed because of fuzzy matching problem. 
488       
489        - Fixed path to Swedish translation: 'sv' instead of 'se'.
490       
491        - Added first draft of Thai translation.
492       
493        - Fixed some minor bugs with Pychecker.
494       
495    - 1.19alpha35 :
496   
497        - Generic PDL analyzer now supports Binary PostScript documents
498          in addition to DSC compliant ones.
499       
500    - 1.19alpha34 :
501   
502        - LPRng support : software accounting seems to work fine,
503          but hardware accounting doesn't work yet.
504   
505    - 1.19alpha33 :
506   
507        - pykosd now accepts command line arguments. Enjoy !
508          NB : due to a bug in xosd, you need xosd version 2.2.8
509          or higher if you don't use the default C locale.
510         
511    - 1.19alpha32 :
512   
513        - Early (not working) version of the LPRng support rewrite.
514       
515        - Saner default configuration file.
516       
517    - 1.19alpha31 :
518   
519        - Fixed a double Python2.1 incompatibility with newer versions,
520          which prevented the PCL5 and the PCLXL parsers to work with
521          this older version of Python.
522         
523    - 1.19alpha30 :
524   
525        - Introduction of preliminary version of the pykosd command
526       
527        - Usernames, Groupnames and Printernames can now contain
528          ANY character, expected '/' and '@'.
529       
530        - Integrated most of the Debian work from Sergio
531          Gonz�z Gonz�z
532         
533    - 1.19alpha29 :
534   
535        - PCLXL parser should now correctly handle number of
536          copies set for each page.
537         
538        - Added testsuite for generic PDL analyzer.
539       
540        - Typo fixed in PCLXL parser.
541       
542        - Correctly dispatches error messages depending on the
543          situation : tools which can be run interactively will
544          ALWAYS output their logs to stderr, excepted for
545          their DEBUG messages, for which the "logger:"
546          directive as set in pykota.conf will be honored.
547          Tools which can't be run interactively will ALWAYS
548          honor the "logger:" directive as set in pykota.conf
549         
550    - 1.19alpha28 :
551   
552        - The description field for printers can now be set,
553          and is displayed in reports.
554         
555        - Fixed a small problem in SQL backend code.
556         
557        - Improved pkhint
558       
559        - First working PCL6 (aka PCLXL) parser !
560          Doesn't handle copies yet.
561       
562    - 1.19alpha27 :
563   
564        - Additionnal 10% speed increase in PCL5 parser for GhostScript
565          generated files (untested yet with other PCL files).
566         
567        - Reintroduced the use of mmap in PCL5 parser : this speedups
568          PCL5 parsing by almost 4 times.
569          This 4x with the 3x below give us in fact a twelvefold increase
570          in performance for PCL5 parsing !
571         
572        - The Python accelerator Psyco is now used if available
573          in the generic PDL parser : it speedups PCL5 parsing by
574          almost three times automagically.
575         
576    - 1.19alpha26 :
577   
578        - Fixed PCL5 parser according to the sources of rastertohp.
579       
580        - Fixed number of copies handling in PCL5 parser : the number
581          of copies could vary from page to page.
582         
583        - Added more debug information to PCLXL parser. 
584       
585    - 1.19alpha25 :
586   
587        - Added new "description" field to printers in both
588          PostgreSQL and LDAP. No code to handle this yet.
589         
590        - Reversed the fix for power save mode in printers : 
591          no paper or tray open would have caused people to
592          be undercharged.
593         
594        - Preliminary version of MySQL initialization script.
595         
596    - 1.19alpha24 :
597   
598        - Native PDF parsing code now works perfectly with
599          Python 2.1 and above, and is way faster than before.
600          GhostScript is not used anymore to convert PDF to PS,
601          because PDF is parsed directly.
602         
603    - 1.19alpha23 :
604   
605        - Fixed waitprinter.sh wrt PowerSave mode and some
606          printers. Thanks to Ryan Suarez.
607       
608        - Smart PDL analyzer now recognizes PDF too : two
609          PDF parsing methods are used : a native one which
610          is very fast but requires Python 2.3 or above, and
611          a slower one which uses Ghostscript. PyKota detects
612          automatically which method to use depending on your
613          version of Python.
614       
615        - All tracebacks now include PyKota's version number.
616         
617    - 1.19alpha22 :
618   
619        - Ensures that the file pointer for job's data is
620          reset to the start of the job's datas after the
621          job's size pre-computation phase.
622         
623        - Improved PostScript detection code for bad drivers
624          which don't correctly switch languages between PJL
625          and PS.
626       
627        - Even better debugging code.
628       
629    - 1.19alpha21 :
630   
631        - Additionnal check.
632       
633    - 1.19alpha20 :
634   
635        - More complete logging messages wrt accounters.
636       
637        - Now catches early failures occuring when the configuration
638          files are parsed.
639       
640    - 1.19alpha19 :
641   
642        - Fixed over-verbose exits when displaying help
643          or version.
644         
645        - Extended some PATH in the shell scripts 
646       
647        - Deleting an user now also deletes his payments history.
648       
649        - Doesn't explicitely ignore SIGCHLD anymore. This seems to
650          cause problems.
651
652    - 1.19alpha18 :
653   
654        - History of payments is now stored in the database, and
655          updated each time an user's balance is modified with
656          edpykota --balance. This history represents each time
657          the user was given some positive or negative credit,
658          but doesn't reflect price paid for jobs, which appear
659          in the jobs history instead.
660         
661        - Jobs history web reports now include the job's size in
662          bytes. Also columns were reordered to render the report
663          more easily readable.
664         
665    - 1.19alpha17 :
666   
667        - Mysterious bug (program exited unexpectedly without leaving
668          any log message) which occured once in a while when
669          cancelling jobs should be fixed now.
670         
671        - New 'crashrecipient' directive. Disabled by 
672          default. See sample configuration file to see how
673          to activate it. It is suggested that you activate it.
674         
675        - New PYKOTAJOBSIZEBYTES environment variable exported, 
676          which contains the job's size in bytes. Empty jobs
677          are now denied. This value is now stored in the job
678          history (but not yet displayed from the web interface)
679         
680        - Preliminary work on payments storage : the PostgreSQL 
681          and LDAP schemas should be OK now, but no code is written
682          yet to support this functionnality.
683         
684    - 1.19alpha16 :
685   
686        - the newuser and newgroup LDAP specific directives now accept
687          a second parameter to attach(), "fail" or "warn". If no entry
688          is found to attach PyKota attributes to, and "fail" was used,
689          then action is aborted and program exits in error. If "warn"
690          is used, a new entry is created but a warning message is logged.
691         
692        - The job's originating hostname is now stored in the database,
693          and exported as PYKOTAJOBORIGINATINGHOSTNAME in the environment.
694       
695    - 1.19alpha15 :
696   
697        - The old pykota filter is now removed. This means that
698          currently PyKota doesn't support LPRng anymore, but
699          LPRng support will be re-added, improved, in the near future.
700         
701    - 1.19alpha14 :
702   
703        - PYKOTAPRECOMPUTEDJOBSIZE and PYKOTAPRECOMPUTEDJOBPRICE
704          are now exported as environment variables.
705         
706        - Heavy CPU usage is now completely fixed it seems, by
707          introducing some 0.01 second sleeping when nothing to do.
708         
709        - Pre-computation of the job's size is now only
710          done when enforcement is "STRICT", this saves
711          CPU for people who don't want to use this new
712          feature.
713         
714        - New 'enforcement' directive which accepts either
715          STRICT or LAXIST. See sample configuration file
716          for details.
717         
718    - 1.19alpha13 :
719   
720        - Get back to an old version of the polling loop which
721          worked fine, but non-optimally. Will be optimized
722          as time permits.
723         
724    - 1.19alpha12 :
725   
726        - Job's size is now precomputed unconditionnally using
727          the generic PDL analyzer.
728          NB : This value is not yet used to pre-allow/deny the
729          job.
730       
731    - 1.19alpha11 :
732   
733        - The pykota filter is now completely deprecated and
734          can't be used anymore. LPRng users MUST download
735          an older version of PyKota. CUPS users MUST use
736          cupspykota. Better support for LPRng will come
737          in the near future.
738         
739    - 1.19alpha10 :
740   
741        - pykotme now uses generic PDL Analyzer directly instead
742          of spawning a new process.
743         
744        - Improvements to generic PDL Analyzer.
745       
746        - 25% Speedup in PCL parser. Getting more of the Python version
747          will probably be difficult, since the completely table driven
748          parser I wrote is slower than the original algorithm. Then,
749          the original algorithm is still used for now.
750          Probable that more speed could be achieved using mmap, at the
751          expense of severe memory consumption.
752       
753        - configuration simplifications : the "accounter" directive's
754          'hardware' arguments now accepts what was in the "requester"
755          directive as it's content. The "requester" directive is not
756          supported anymore. See sample configuration file for details.
757       
758    - 1.19alpha9 :
759       
760        - pkpgcounter is now just a wrapper around the PDLAnalyzer class
761       
762        - pykotaOptions LDAP attribute now accepts non-ascii characters
763          too.
764         
765        - First try at cupspykota main loop rewrite
766       
767    - 1.19alpha8 :
768   
769        - 'querying' accounting method is now called 'hardware'
770       
771        - 'external' accounting method is now called 'software'
772       
773        - 'stupid' accounting method doesn't exist anymore
774       
775        - 'snmp' requester doesn't exist anymore
776       
777        - code simplifications in external requester
778       
779    - 1.19alpha7 :
780     
781        - Database schema change (both LDAP and PostgreSQL) to
782          allow storage of the job-originating-hostname attribute.
783          An SQL upgrade script is present. The code is not yet
784          capable of setting/retrieving this attribute. Support
785          for this functionnality will be added in the future.
786         
787    - 1.19alpha6 :
788   
789        - problems connecting to SMTP servers are now catched.
790       
791        - pykotme now uses pkpgcounter to compute the size of the
792          job. This modification adds PCL5 and soon PCLXL (PCL6)
793          support. You can now get quotes for PCL in addition to
794          PostScript.
795         
796        - pkpgcounter now includes first try at PCLXL parser. 
797          It is currently disabled until it's finished.
798         
799    - 1.19alpha5 :
800   
801        - cupspykota polling loop fix for MacOSX (at least)
802       
803        - logging subsystem now logs PID too, to ease diagnosing
804          problems under heavy load.
805         
806        - pkpgcounter enhancements.
807       
808        - pkprinters --skipexisting now tells pkprinters to not
809          modify existing printers when --add is used.
810          pkprinters logs a warning message whenever --add is
811          used and a printer already exists.
812         
813        - LDAP schema now allows accented chars in pykotaFileName
814          and pykotaTitle attributes.
815       
816    - 1.19alpha4 :
817   
818        - a bad copy&paste prevented pkpgcounter to work at all, this
819          is now fixed.
820         
821        - improved PCL support in pkpgcounter, with the use of
822          HP PCL/PJL Reference Set
823          PCL5 Printer Language Technical Quick Reference Guide
824       
825        - pkpgcounter now uses mmap to speed things up : duration
826          is halved with the sample 87 pages PCL document I use for
827          testing.
828         
829    - 1.19alpha3 :
830   
831        - pkprinters now accepts the --list command line argument
832          to list informations about printers.
833         
834    - 1.19alpha2 :
835   
836        - pkpgcounter is now included as a smart external
837          accounter which can handle both PostScript and PCL.
838         
839    - 1.19alpha1 :
840   
841        - PYKOTALIMITBY environment variable is now exported too.
842       
843        - Inclusion of Michele Baldessari's work on autotools.
844       
845    - 1.18 :
846   
847        - Improved documentation
848       
849    - 1.18beta2 :
850     
851        - Fix for raw jobs with cupspykota
852       
853    - 1.18beta :
854   
855        - Small fix for new waitprinter.sh script
856       
857        - Better tracebacks on error conditions
858       
859        - Improved translations
860       
861        - Improved documentation
862       
863    - 1.18alpha15 :
864
865        - waitprinter.sh replaced by a new and possibly faster
866          and more powerful one.
867   
868        - Names can now begin with a digit.
869       
870        - Stability improvement for quotas set on printers groups.
871       
872    - 1.18alpha14 :
873   
874        - Catches more (all ?) problems with SMTP servers instead
875          of breaking.
876         
877        - Italian translation added.
878       
879    - 1.18alpha13 :
880   
881        - Pre and Post hooks are now available in the pykota
882          filter as well.
883         
884        - The pykota filter doesn't check last user's quota
885          anymore when delayed hardware accounting is used :
886          this will be done anyway the next time the last
887          user will print again. This saves some database
888          queries which are unneeded.
889       
890    - 1.18alpha12 :
891   
892        - Pre and Post hooks to external commands with many
893          many environment variables available are useable
894          from the cupspykota backend.
895          See sample configuration file for details and help.
896         
897    - 1.18alpha11 :
898   
899        - Hopefully final fix wrt groups (users and printers)
900       
901    - 1.18alpha10 :
902   
903        - Fixed nested printer groups accounting.
904       
905        - Fixed user groups + printer groups problem.
906       
907    - 1.18alpha9 :
908   
909        - Fix for LDAP problem when job price was 0.
910       
911        - Fix for empty user groups with LDAP.
912       
913        - Preliminary version of the snmpprinterstatus command added.
914       
915    - 1.18alpha8 :
916   
917        - Don't retrieve data when not needed.
918          This avoids many database queries.
919       
920    - 1.18alpha7 :
921   
922        - New experimental ldapcache directive to improve
923          LDAP caching.
924         
925    - 1.18alpha6 :
926       
927        - New configuration directive added : maildomain
928          to specify the domain to send mail to when user
929          email address is not set in PyKota database.
930         
931        - More complete email message headers. 
932         
933    - 1.18alpha5 :
934   
935        - Debian packaging specific files, contributed by
936          Peter Hawkins are now included in the project's tree.
937         
938        - Preliminary work on future low-level LDAP caching to speed
939          up modifications (at least).
940         
941    - 1.18alpha4 :
942   
943        - Applied some of the modifications suggested by
944          Peter Hawkins, for better Debian integration.
945          Most notably cupspykota, pykota, and the shell
946          scripts are now installed into /usr/share/pykota
947          instead of into /usr/bin
948          BEWARE : double check that your symbolic link
949          to cupspykota is correct, and that your pykota.conf
950          file use correct path for the shell scripts like
951          waitprinter.sh and al.
952         
953        - pkhint command added, to help in configuring correct
954          accounting method for PyKota.
955         
956    - 1.18alpha3 :
957   
958        - Fixed a rare bug in cupspykota backend which gave
959          incorrect "CUPS backend died abnormally" messages.
960       
961    - 1.18alpha2 :
962   
963        - Added the pkprinters command line tool to manage printers
964          exclusively.
965       
966    - 1.18alpha1 :
967   
968        - Preliminary work on Relationnal Database Independance.
969       
970        - Sample report made from OpenOffice.org added as PDF and SXC.
971       
972    - 1.17 :
973   
974        - Finalized release.
975       
976    - 1.17alpha2 :
977   
978        - Fix stupid software accounting bug in the CUPS backend.
979       
980    - 1.17alpha1 :
981   
982        - User/Group deletion code in edpykota rewritten.
983       
984    - 1.16 :
985   
986        - Preliminary documentation on how to use OpenOffice.org
987          to create personnalized reports for PyKota + PostgreSQL.
988         
989        - Spanish installation guide for CUPS+PyKota+PostgreSQL
990          added to the documentation. Doesn't yet document v1.16
991          though.
992       
993        - Portuguese Portuguese translation replaces Brasilian
994          Portuguese Translation. Brasilian portuguese
995          translation is still available under the 'br' locale.
996       
997    - 1.16beta3 :
998   
999        - Swedish translation added.
1000       
1001        - Small fix in documentation.
1002       
1003    - 1.16beta2 :
1004   
1005        - Small fix for job cancelling code while job already
1006          printing in CUPS backend.
1007         
1008        - Big fix wrt printing policies for unknown users. 
1009       
1010    - 1.16beta1 :
1011   
1012        - Manpages upgraded.
1013       
1014    - 1.16alpha26 :
1015   
1016        - Job price is now computed like this :
1017       
1018          SUM((NbPages * PricePerPage) + PricePerJob)
1019         
1020          For current printer and all the printers groups it is
1021          a member of, if any.
1022         
1023          This may be difficult to grasp, but offers unprecedented
1024          flexibility.
1025         
1026    - 1.16alpha25 :
1027   
1028        - Email address can be set at user creation time,
1029          using the following syntax :
1030         
1031            $ edpykota --add username/email@yourdomain.com
1032       
1033    - 1.16alpha24 :
1034   
1035        - CGI script now can show the printing history.
1036       
1037        - Bug wrt number of copies should be fixed.
1038       
1039        - Major code refactoring => It is now possible to
1040          automatically add printers on first print.
1041       
1042    - 1.16alpha23 :
1043   
1044        - Fixed potential accuracy problem if a user printed on
1045          several printers at the very same time.
1046       
1047    - 1.16alpha22 :
1048   
1049        - edpykota now allows adding printers to printer groups
1050       
1051    - 1.16alpha21 :
1052   
1053        - Allows the dot in user and printer names.
1054       
1055        - Printer groups are now cached too.
1056       
1057    - 1.16alpha20 :
1058   
1059        - Fixed several small bugs with the help of PyChecker.
1060       
1061    - 1.16alpha19 :
1062     
1063        - Fixed a bug in PostgreSQL backend's code.
1064       
1065    - 1.16alpha18 :
1066   
1067        - Initial code for printer groups support. Printer groups have
1068          to be added with external tools like psql or gq for example.
1069          Printer groups seems to work fine with users. Untested with user
1070          groups for now.
1071
1072        - Several minor visual problems fixed in reports.
1073       
1074        - Fixed a bug in LDAP date handling.
1075       
1076        - Fix for LDAP problem with some combination of OpenLDAP + Python-LDAP
1077          + some particular settings.
1078         
1079        - mailandpopup.sh shell script added. See sample configuration file
1080          for details.
1081       
1082        - Several environment variables are now exported when executing
1083          external commands (accounters, requesters, mailers) :
1084           
1085            PYKOTAUSERNAME => user who is printing
1086            PYKOTAPRINTERNAME => printer on which the job is being sent
1087            PYKOTATITLE => Job's title
1088            PYKOTAFILENAME => Job's filename
1089            PYKOTACOPIES => number of copies asked
1090            PYKOTAOPTIONS => print command options (-o with CUPS)
1091         
1092    - 1.16alpha17 :
1093   
1094        - Added portugues translation.
1095       
1096        - Major code refactoring in accounters.
1097       
1098    - 1.16alpha16 :
1099   
1100        - Code refactoring, and addition of a real HTML reporter, to
1101          have nice looking and useful web based reports (in the future).
1102       
1103        - Added utolower configuration option to convert all usernames
1104          to lowercase during printing.
1105         
1106    - 1.15alpha15 :
1107   
1108        - Now includes the papwaitprinter.sh shell script to wait for
1109          AppleTalk enabled printers.
1110         
1111    - 1.16alpha14 :
1112   
1113        - Now printing on a printer not defined in the Quota Storage,
1114          results in the job being cancelled or stopped, depending
1115          on the printing system.
1116         
1117    - 1.16alpha13 :
1118   
1119        - Small bugfix wrt Python v2.1
1120       
1121        - If username is an empty string, user root is assumed.
1122       
1123        - 'postgresql' is not recognized anymore as a storage backend,
1124          you have to use 'pgstorage' instead. 'postgresql' used to
1125          be supported for compatibility with very old PyKota versions,
1126          this is not the case anymore.
1127         
1128    - 1.16alpha12 :
1129   
1130        - Job price added to job history, to keep accounting correct
1131          if a printer price per page or per job is modified and the
1132          history is not reset : the history would have given a false
1133          amount of money charged before the printer's prices were
1134          modified, this addition solves the problem.
1135         
1136    - 1.16alpha11 :
1137   
1138        - Some preliminary modifications to the database structure for
1139          PostgreSQL and OpenLDAP. A script to upgrade a PostgreSQL
1140          database is now provided. LDAP attributes now support
1141          eq, pres and sub indexes.
1142         
1143        - Job history now contains additional informations : 
1144          number of copies, filename, title and print options.
1145         
1146    - 1.16alpha10 :
1147       
1148        - Some modifications done to external policy handling.
1149          See sample configuration file for details.
1150   
1151        - Spanish translation added.
1152       
1153    - 1.16alpha9 :
1154   
1155        - mailto can be set to external(...) to warn users above
1156          quota with any command of your choice (e.g. linpopup).
1157          Several parameters are available, see sample configuration
1158          file for details.
1159         
1160    - 1.16alpha8 :
1161   
1162        - Now cupspykota transmits SIGTERMS to the original 
1163          backend when the user deletes a job being processed.
1164         
1165        - The documentation is now licensed under the terms of the
1166          GNU GPL too.
1167         
1168    - 1.16alpha7 :
1169   
1170        - The CUPS backend is now fully functionnal (it seems).
1171       
1172        - From now on, the use of the pykota filter with CUPS
1173          is deprecated. The pykota filter still has to be
1174          used with LPRng though.
1175       
1176    - 1.16alpha6 :
1177   
1178        - Bug fixed : when edpykota was used to add a printer
1179          with no user or group name, a bad user/group name "*" was
1180          added to the database.
1181         
1182    - 1.16alpha5 :
1183   
1184        - New CUPS backend supports device enumeration !
1185          This means that NO manual CUPS configuration has to
1186          be done. All can now be done from CUPS web interface.
1187       
1188    - 1.16alpha4 :
1189   
1190        - New CUPS backend added.
1191       
1192    - 1.16alpha3 :
1193       
1194        - Minimal FAQ document added.
1195       
1196    - 1.16alpha2 :
1197   
1198        - CGI script now partially supports browser's language preference
1199       
1200    - 1.16alpha1 :
1201   
1202        - Ensures that the LDAP connection is really closed at end.
1203       
1204        - More complete error messages in case of LDAP operation failure.
1205       
1206    - 1.15 :
1207     
1208        - Documentation improved.
1209       
1210    - 1.15beta :
1211   
1212        - Command line tools now accept multiple printer
1213          names or wildcards, separated with commas.
1214         
1215    - 1.15alpha9 :
1216   
1217        - External policy can be used to auto-add unknown users
1218          and any other interesting things you may want to do.
1219          WARNING : You can't auto-add printers for now.
1220          They have to be created manually before.
1221          Look at sample configuration file for examples.
1222         
1223    - 1.15alpha8 :
1224   
1225        - Job history can be disabled if needed.
1226          This feature may be useful for people who use the LDAP
1227          backend and don't want their LDAP tree to grow out of
1228          control.
1229       
1230    - 1.15alpha7 :
1231   
1232        - More work done on caching wrt groups.
1233       
1234    - 1.15alpha6 :
1235   
1236        - Performance bottleneck with LDAP solved.
1237       
1238    - 1.15alpha5 :
1239   
1240        - Caching mechanism for all database queries.
1241
1242    - 1.15alpha4 :
1243   
1244        - Problem with Python 2.3 fixed. Needs some definitive
1245          modification.
1246         
1247    - 1.15alpha3 :
1248   
1249        - CGI script now tries to restrict view when the
1250          REMOTE_USER environment variable is set. This allows
1251          people to protect its use with .htaccess files.
1252          When unprotected, or if REMOTE_USER is 'root', then
1253          unrestricted access is granted.
1254          NB : REMOTE_USER is automatically set by the web server
1255          (e.g. Apache) when a page with restricted access is viewed.
1256         
1257    - 1.15alpha2 :
1258   
1259        - Better detection of LPRng.
1260       
1261        - Outputs a warning if printing system is unknown.
1262       
1263    - 1.15alpha1 :
1264   
1265        - Bug fix in SQL code.
1266       
1267    - 1.14 :
1268   
1269        - The PostgreSQL database connection is now always closed before
1270          exit. The LDAP database connection too, but it didn't suffer
1271          from the problem anyway, AFAICT.
1272       
1273    - 1.14beta2 :
1274   
1275        - An LDAP-specific configuration field was introduced, usermail.
1276          Use it to specify which LDAP attribute contains a valid email
1277          address for the user. See sample configuration file for
1278          details.
1279       
1280    - 1.14beta :
1281   
1282        - Two new LDAP-specific configuration fields were introduced,
1283          newuser and newgroup. Use them to specify if you want to add
1284          quota information to existing entries or elsewhere.
1285          See sample configuration file for details.
1286         
1287    - 1.14alpha9 :
1288   
1289        - Documentation improved.
1290       
1291        - pykotme now also prints the user's account balance value
1292          if the user is registered in the Quota Storage and his
1293          limiting factor is "balance".
1294         
1295    - 1.14alpha8 :
1296   
1297        - bin/waitprinter.sh is now included to wait for
1298          SNMP enabled printers to be idle again before
1299          asking for their internal page counter.
1300          See sample configuration file for details.
1301         
1302    - 1.14alpha7 :
1303   
1304        - edpykota now doesn't check if the user/group is above
1305          quota. The check is only done at print time. This
1306          prevents the sending of email messages when creating
1307          user quotas if quota is already reached at creation
1308          time.
1309         
1310    - 1.14alpha6 :
1311   
1312        - Configuration file split and moved to /etc/pykota/pykota.conf
1313          and /etc/pykota/pykotadmin.conf to prevent simple users to
1314          have Read/Write access to the Quota Database.
1315          Don't forget to :
1316         
1317                $ chmod 640 /etc/pykota/pykotadmin.conf
1318               
1319        - storageuser and storageuserpw configuration fields reintroduced
1320          for the same reason.
1321         
1322        - Code cleaning for future implementation of email addresses
1323          support in the PostgreSQL and LDAP backends.
1324         
1325    - 1.14alpha5 :
1326       
1327        - Big bug fixed when changing the prices for a printer
1328       
1329    - 1.14alpha4 :
1330   
1331        - When adding an user, the user itself and its account balance
1332          are now added in the same LDAP entry. Before they were added
1333          as two different LDAP entries.
1334         
1335    - 1.14alpha3 :
1336   
1337        - Email field added to PostgreSQL database. An upgrade script
1338          is included in initscripts/postgresql.
1339       
1340    - 1.14alpha2 :
1341   
1342        - Typo fixed when using the --prototype option to edpykota
1343       
1344    - 1.14alpha1 :
1345   
1346        - Poor man's treshold included : users with a low account
1347          balance (below 1.0 by default, configurable) are sent
1348          a warning message.
1349         
1350        - All warning messages to users are now configurable. 
1351          NB : Warning messages to the administrator are not.
1352       
1353    - 1.13 :
1354   
1355        - Some small fixes wrt group handling.
1356       
1357        - The whole module code was passed through PyChecker and
1358          several small code inconsistencies were fixed,
1359          as well as a bug in the groups code.
1360         
1361    - 1.13alpha1 :
1362   
1363        - Bug fix wrt LDAP.
1364       
1365    - 1.12 :
1366   
1367        - More complete test added in edpykota.
1368       
1369    - 1.12alpha2 :
1370   
1371        - The previous bug fix was incomplete. This is corrected.
1372       
1373    - 1.12alpha1 :
1374   
1375        - Small bug fix.
1376       
1377    - 1.11 :
1378   
1379        - Now includes the pykotme command line tool, to produce
1380          printing quotes for users.
1381         
1382    - 1.10 :
1383   
1384        - Bug fixed wrt quota reports when print limiting is by
1385          account balance.
1386         
1387    - 1.09 :
1388   
1389        - Translations finalized.
1390       
1391        - Manpages updated.
1392       
1393        - Installation documentation improved wrt LDAP support.
1394       
1395    - 1.09beta2 :
1396   
1397        - The CGI script for quota reports works again, and
1398          is much more powerful.
1399       
1400    - 1.09beta :
1401   
1402        - edpykota finalized
1403       
1404    - 1.09alpha2 :
1405   
1406        - LDAP schema modified a bit. Please upgrade.
1407       
1408        - LDAP backend works !
1409       
1410        - repykota and warnpykota allow the root user to pass
1411          users or groups names on the command line. Users
1412          and groups names may contain wildcards.
1413         
1414        - repykota and warnpykota only reports or warns the
1415          current user when launched by non-root users.
1416         
1417        - Minor bug fixes. 
1418   
1419    - 1.09alpha1 :
1420   
1421        - More work on LDAP storage backend. Many options
1422          were added to /etc/pykota.conf to give some
1423          hints to the LDAP storage backend.
1424         
1425        - Severe database access optimizations were done by
1426          rewriting most of the Quota Storage backends drivers.
1427     
1428    - 1.08 :
1429   
1430        - Major bug fix wrt LPRng support for remote jobs.
1431       
1432        - Major bug fix wrt increase/decrease account balances.
1433       
1434    - 1.08alpha8 :
1435   
1436        - Code refactoring.
1437       
1438        - A single user/password pair is used to connect
1439          to the database backend. The storageuser configuration
1440          field, and its associated passwords storageuserpw, are
1441          not used anymore.
1442         
1443        - You can now set PyKota in debug mode, see sample configuration 
1444          file for details.
1445          WARNING : only Quota Storage backend queries are logged in
1446          debug mode, for now.
1447       
1448    - 1.08alpha7 :
1449   
1450        - Very latest LDAP schema.
1451       
1452        - Code enhancement wrt easy pluggability of PyKota attributes
1453          and object classes into an existing LDAP directory.
1454       
1455    - 1.08alpha6 :
1456   
1457        - Minor bug corrections
1458       
1459        - More work on LDAP : new schema
1460       
1461    - 1.08alpha5 :
1462   
1463        - More good work on LDAP storage.
1464          repykota now works reasonably well with the sample LDAP directory.
1465       
1466    - 1.08alpha4 :
1467   
1468        - LDAP schema included.
1469          THIS IS JUST FOR PEOPLE TO DISCUSS ABOUT THIS.
1470          LDAP SUPPORT DOESN'T WORK YET, AND THE SCHEMA
1471          MAY CHANGE IN THE FUTURE. PLEASE TELL US
1472          WHAT YOU THINK ABOUT THIS SCHEMA ON THE
1473          MAILING LIST.
1474         
1475    - 1.08alpha3 :
1476   
1477        - External accounting methods were partly rewritten :
1478         
1479          - No more "broken pipe" should happen.
1480         
1481          - They now take care of the number of copies
1482            This may be unneeded though, if the postscript
1483            file already does this, because this would
1484            overcharge users (number of copies counted
1485            two times). NEEDS MORE TESTING.
1486           
1487          - The sample configuration file now contains 
1488            an external accounting method example which should
1489            work with all DSC compliant Postscript files.
1490           
1491        - Some small bugs were fixed.   
1492       
1493    - 1.08alpha2 :
1494   
1495        - Now works with net-snmp v5.0 and above.
1496          It already worked, but the sample configuration
1497          file didn't contain appropriate values...
1498       
1499    - 1.07 : Release of the Shame !
1500   
1501        - The external accounting methods driver was left out of
1502          the CVS tree. Nobody could use it since it wasn't included !
1503         
1504    - 1.06 :
1505   
1506        - Severe bug fixed : if you had a printer in
1507          power saving state which couldn't answer immediately,
1508          a bug was triggered.
1509          It was caused by a bad copy/paste which
1510          forgot to import a Python module at run time.
1511         
1512    - 1.05 :
1513   
1514        - External accounters are finally available !
1515          This means that you can plug any page accounting
1516          method you like by setting the appropriate
1517          'accounter' field in /etc/pykota.conf
1518          See the sample conf/pykota.conf.sample to
1519          learn how to do.
1520         
1521          NB : Both 'external' and 'stupid' accounting methods
1522               account a job size just before *this* job is
1523               sent to the printer.
1524               The original 'querying' method accounts a job
1525               size just before *the next* job is sent to
1526               the printer.
1527       
1528    - 1.05alpha3 :
1529   
1530        - A 'stupid' and unreliable accounting method was
1531          implemented to serve as an example on how to
1532          do this sort of things. This method only counts
1533          the 'showpage' statements in the input data.
1534          See sample configuration file for details.
1535          Pluggable accounting methods work, but I advise
1536          you TO NOT USE THIS ONE WHICH IS JUST AN EXAMPLE.
1537          It is not reliable enough to be used.
1538          Use the 'querying' accounting method instead.
1539         
1540    - 1.05alpha2 :
1541   
1542        - Pluggable accounting methods.
1543       
1544        - Better error handling.
1545       
1546    - 1.05alpha1 :
1547   
1548        - SECURITY file added to help improve PyKota's security.
1549       
1550        - Extracting the printer's internal page counter is now
1551          tried several times, waiting several seconds between
1552          two tries. This lets the time to warm up for some printers
1553          which don't answer when they are sleeping (my Apple
1554          LaserWriter 16/600 PS is in this case, maybe others too)
1555         
1556        - Small display bug fixed in repykota
1557         
1558    - 1.04 :
1559   
1560        - Default print policy for users/groups unknown from
1561          the print quota system is now DENY instead of ALLOW,
1562          since ALLOW can generate inaccurate results
1563          (incorrect job sizes charged to the wrong persons)
1564         
1565        - LPRng support works !
1566       
1567        - A bug was introduced some time ago wrt printers' default
1568          policy for unknown users. It is now corrected.
1569       
1570        - repykota now displays prices per job and per page for each
1571          printer, if they are defined.
1572         
1573        - Minor display bug fixed in repykota.
1574       
1575        - Problem when running repykota with an empty database was fixed.
1576       
1577    - 1.03 :
1578   
1579        - Upgrade script included for earlier versions.
1580          Please look inside the initscripts subdirectory.
1581          THE DATABASE SCHEMA HAS CHANGED, PLEASE UPGRADE.
1582         
1583        - repykota now reports account balances too.
1584       
1585        - PyKota now has a nice logo, see the logos
1586          subdirectory.
1587       
1588        - Manual pages were finally updated.
1589       
1590        - Group quotas seem to work now !
1591       
1592        - The new database schema allows to keep an history of all
1593          jobs as well as charge users per page and/or per job,
1594          and track users' account balance.
1595         
1596        - edpykota now accepts much more command line options to 
1597          use the new functionnalities. See edpykota --help for
1598          details.
1599         
1600        - The installation script now allows to install the sample
1601          configuration file during first installation.
1602         
1603        - More group quota code works, but still not finished. 
1604       
1605        - The CGI script displays a link to PyKota's website.
1606       
1607        - The job history is now kept, this will allow per-period
1608          reports in the future.
1609         
1610        - After having modified the quota for an user with edpykota,
1611          a quota check is done to eventually warn the user/admin about
1612          a quota which is too low to print.
1613         
1614        - A workaround is provided for HP Printers : their internal
1615          page counter is only saved to NVRAM in a 10 increment, so
1616          if you switch them off and then on, the reported page counter
1617          may be lower than the real number of pages printed.
1618          See http://web.mit.edu/source/third/lprng/doc/LPRng-HOWTO-15.html
1619          We unconditionnally set the last job's page count to
1620          abs(int((10 - abs(lastcounter(snmp) - lastcounter(storage)) / 2))
1621          in this case.
1622          For a more accurate accounting, never switch your HP printers
1623          off.
1624         
1625        - A fix is provided for printers which only have a volatile 
1626          page counter (reset to 0 every time you switch the printer on)
1627          This should allow PyKota to work reasonably fine with HP Laserjet
1628          4L/5L/6L, not perfect, but better than nothing.
1629          See http://web.mit.edu/source/third/lprng/doc/LPRng-HOWTO-15.html
1630          For a more accurate accounting, never switch your HP printers
1631          off. This is untested, please report any problem.
1632         
1633        - A bug was fixed when edpykota --add was used with users who already
1634          had a quota on the specified printer.
1635         
1636        - A small display bug in repykota was introduced in preliminary
1637          1.03 versions, and fixed later on.
1638         
1639        - Some minor bugs which happened in rare situations were fixed.
1640       
1641        - Support for AppleTalk printers was added, see sample configuration
1642          file for details.
1643         
1644        - Users and group printing can now be controlled (limited) either by 
1645          print quota or by account balance.
1646       
1647    - 1.02 :
1648   
1649        - The installation script now checks for software availability
1650          and in case a software is missing asks the user if he
1651          wants to continue with the installation or abort it.
1652         
1653        - The configuration file pykota.conf is now expected to be
1654          found in /etc instead of in /etc/cups
1655          The installation script prompts the user to see if he
1656          wants to move an old configuration file to the new location
1657          if needed.
1658         
1659        - Improved documentation.
1660       
1661        - You can now set the tcp/ip port on which the Quota Storage
1662          Server is listening, see sample configuration file for details.
1663       
1664        - Better general error handling.
1665       
1666        - Upgrade script for pre 1.01 PostgreSQL database schema is now
1667          included as well.
1668       
1669    - 1.01 :
1670   
1671        - The configuration file now accepts an option   
1672          to choose the recipient(s) of the email messages :
1673         
1674            - DevNull means no one will receive them.
1675            - User means only the user will receive them.
1676            - Admin means only the admin will receive them.
1677            - Both means the User and the Admin will receive them.
1678           
1679        - The configuration file now uses hard-coded default values
1680          when an option is not set. See sample configuration file
1681          for details.
1682         
1683        - Manual pages are included since 1.00, but I forgot to   
1684          add this information to this file.
1685         
1686        - Redistribution terms for the official package have 
1687          softened and are now fully GPL compatible :
1688          unrestricted modification is now allowed even for
1689          the version number.
1690         
1691    - 1.00 :
1692   
1693        - edpykota now accepts a --noquota option. This
1694          disable quota checking while still doing page
1695          accounting. This is really useful for people
1696          who don't want to limit their users but want
1697          to know how much pages they print.
1698         
1699        - Some untested scripts were added to retrieve
1700          the life time page counter of non-SNMP printers.
1701         
1702        - Every directory now has a specific README file. 
1703       
1704    - 0.99 :
1705   
1706        - Under some circumstances while the user wasn't allowed
1707          to print, he didn't receive any email message. It is
1708          now fixed.
1709         
1710        - When an user wasn't allowed to print, the quota for
1711          the previous user wasn't updated. This is now fixed.
1712         
1713    - 0.98 :
1714   
1715        - Correctly handle the case where the printer is switched off.
1716       
1717        - Small bug wrt syslog fixed.
1718       
1719    - 0.97 :
1720   
1721        - edpykota accepts wildcards on its command line for users/groups too
1722          if the --add option is not set, e.g. :
1723         
1724              $ edpykota --printer lp --softlimit 50 --hardlimit 100 "jer*"
1725             
1726        - If no user name is passed at all, then a default wildcard of "*"
1727          which means apply the command on ALL users for this printer is used.
1728         
1729        - Small bug fixes.
1730       
1731    - 0.96 :
1732
1733        - Options requester, policy, admin, adminmail and gracedelay can now
1734          be set either globally or per printer. The printer option has
1735          priority if both are defined.
1736
1737        - More powerful configuration parser.
1738       
1739        - If all options are defined globally, there's no need to
1740          define a section for each printer in the configuration
1741          file anymore. Just define a [global] section and it's ok.
1742
1743    - 0.95 :
1744
1745        - External requesters for printers finally added.
1746
1747        - Full internationalization (english and french are supported)
1748 
1749        - More complete quota usage report
1750
1751        - CGI script to access to the quota usage report
1752
1753        - Several bugs fixed.
1754
1755
1756    - 0.9 :
1757
1758        - First public version
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