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42 <h1 class="SECT1"><a name="COPYRIGHT" id="COPYRIGHT">12. Privoxy
43 Copyright, License and History</a></h1>
45 <p>Copyright © 2001-2016 by Privoxy Developers <code class=
47 "mailto:privoxy-devel@lists.privoxy.org">privoxy-devel@lists.privoxy.org</a>></code></p>
49 <p>Some source code is based on code Copyright © 1997 by Anonymous
50 Coders and Junkbusters, Inc. and licensed under the <i class=
51 "CITETITLE">GNU General Public License</i>.</p>
53 <p><span class="APPLICATION">Privoxy</span> is free software; you can
54 redistribute it and/or modify it under the terms of the <i class=
55 "CITETITLE">GNU General Public License</i>, version 2, as published by
56 the Free Software Foundation and included in the next section.</p>
59 <h2 class="SECT2"><a name="LICENSE" id="LICENSE">12.1. License</a></h2>
61 <table border="0" bgcolor="#E0E0E0" width="100%">
65 GNU GENERAL PUBLIC LICENSE
68 Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
69 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
70 Everyone is permitted to copy and distribute verbatim copies
71 of this license document, but changing it is not allowed.
75 The licenses for most software are designed to take away your
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78 software--to make sure the software is free for all its users. This
79 General Public License applies to most of the Free Software
80 Foundation's software and to any other program whose authors commit to
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82 the GNU Lesser General Public License instead.) You can apply it to
85 When we speak of free software, we are referring to freedom, not
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344 END OF TERMS AND CONDITIONS
346 How to Apply These Terms to Your New Programs
348 If you develop a new program, and you want it to be of the greatest
349 possible use to the public, the best way to achieve this is to make it
350 free software which everyone can redistribute and change under these terms.
352 To do so, attach the following notices to the program. It is safest
353 to attach them to the start of each source file to most effectively
354 convey the exclusion of warranty; and each file should have at least
355 the "copyright" line and a pointer to where the full notice is found.
357 <one line to give the program's name and a brief idea of what it does.>
358 Copyright (C) <year> <name of author>
360 This program is free software; you can redistribute it and/or modify
361 it under the terms of the GNU General Public License as published by
362 the Free Software Foundation; either version 2 of the License, or
363 (at your option) any later version.
365 This program is distributed in the hope that it will be useful,
366 but WITHOUT ANY WARRANTY; without even the implied warranty of
367 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
368 GNU General Public License for more details.
370 You should have received a copy of the GNU General Public License along
371 with this program; if not, write to the Free Software Foundation, Inc.,
372 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
374 Also add information on how to contact you by electronic and paper mail.
376 If the program is interactive, make it output a short notice like this
377 when it starts in an interactive mode:
379 Gnomovision version 69, Copyright (C) year name of author
380 Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
381 This is free software, and you are welcome to redistribute it
382 under certain conditions; type `show c' for details.
384 The hypothetical commands `show w' and `show c' should show the appropriate
385 parts of the General Public License. Of course, the commands you use may
386 be called something other than `show w' and `show c'; they could even be
387 mouse-clicks or menu items--whatever suits your program.
389 You should also get your employer (if you work as a programmer) or your
390 school, if any, to sign a "copyright disclaimer" for the program, if
391 necessary. Here is a sample; alter the names:
393 Yoyodyne, Inc., hereby disclaims all copyright interest in the program
394 `Gnomovision' (which makes passes at compilers) written by James Hacker.
396 <signature of Ty Coon>, 1 April 1989
397 Ty Coon, President of Vice
399 This General Public License does not permit incorporating your program into
400 proprietary programs. If your program is a subroutine library, you may
401 consider it more useful to permit linking proprietary applications with the
402 library. If this is what you want to do, use the GNU Lesser General
403 Public License instead of this License.
412 <h2 class="SECT2"><a name="HISTORY" id="HISTORY">12.2. History</a></h2>
414 <p>A long time ago, there was the <span class="APPLICATION">Internet
415 Junkbuster</span>, by Anonymous Coders and Junkbusters Corporation.
416 This saved many users a lot of pain in the early days of web
417 advertising and user tracking.</p>
419 <p>But the web, its protocols and standards, and with it, the
420 techniques for forcing ads on users, give up autonomy over their
421 browsing, and for tracking them, keeps evolving. Unfortunately, the
422 <span class="APPLICATION">Internet Junkbuster</span> did not. Version
423 2.0.2, published in 1998, was the last official release, available from
424 Junkbusters Corporation. Fortunately, it had been released under the
425 GNU <a href="http://www.gnu.org/licenses/old-licenses/gpl-2.0.html"
426 target="_top">GPL</a>, which allowed further development by others.</p>
428 <p>So Stefan Waldherr started maintaining an improved version of the
429 software, to which eventually a number of people contributed patches.
430 It could already replace banners with a transparent image, and had a
431 first version of pop-up killing, but it was still very closely based on
432 the original, with all its limitations, such as the lack of HTTP/1.1
433 support, flexible per-site configuration, or content modification. The
434 last release from this effort was version 2.0.2-10, published in
437 <p>Then, some <a href=
438 "https://www.privoxy.org/user-manual/copyright.html#AUTHORS" target=
439 "_top">developers</a> picked up the thread, and started turning the
440 software inside out, upside down, and then reassembled it, adding many
442 "https://www.privoxy.org/user-manual/introduction.html#FEATURES"
443 target="_top">new features</a> along the way.</p>
445 <p>The result of this is <span class="APPLICATION">Privoxy</span>,
446 whose first stable version, 3.0, was released August, 2002.</p>
448 <p>As of 2012 the Junkbusters Corporation's website
449 (http://www.junkbusters.com/) has been shut down, but Privoxy is still
450 actively maintained.</p>
454 <h2 class="SECT2"><a name="AUTHORS" id="AUTHORS">12.3. Authors</a></h2>
456 <p>Current Privoxy Team:</p>
458 <p class="LITERALLAYOUT">
459 Fabian Keil, lead developer<br>
460 David Schmidt<br>
461 Hal Burgiss<br>
462 Lee Rian<br>
463 Roland Rosenfeld<br>
464 Ian Silvester</p>
466 <p>Former Privoxy Team Members:</p>
468 <p class="LITERALLAYOUT"> Johny Agotnes<br>
469 Rodrigo Barbosa<br>
470 Moritz Barsnick<br>
471 Ian Cummings<br>
472 Brian Dessent<br>
473 Jon Foster<br>
474 Karsten Hopp<br>
475 Alexander Lazic<br>
476 Daniel Leite<br>
477 Gábor Lipták<br>
478 Adam Lock<br>
479 Guy Laroche<br>
480 Justin McMurtry<br>
481 Mark Miller<br>
482 Gerry Murphy<br>
483 Andreas Oesterhelt<br>
484 Haroon Rafique<br>
485 Georg Sauthoff<br>
486 Thomas Steudten<br>
487 Jörg Strohmayer<br>
488 Rodney Stromlund<br>
489 Sviatoslav Sviridov<br>
490 Sarantis Paskalis<br>
491 Stefan Waldherr</p>
493 <p>Thanks to the many people who have tested Privoxy, reported bugs,
494 provided patches, made suggestions, donated or contributed in some
495 other way. These include (in alphabetical order):</p>
497 <p class="LITERALLAYOUT"> Rustam Abdullaev<br>
498 Anatoly Arzhnikov<br>
499 Ken Arromdee<br>
500 Natxo Asenjo<br>
501 Devin Bayer<br>
502 Havard Berland<br>
503 David Bo<br>
504 Gergely Bor<br>
505 Francois Botha<br>
506 Reiner Buehl<br>
507 Andrew J. Caines<br>
508 Clifford Caoile<br>
509 Edward Carrel<br>
510 Pak Chan<br>
511 Wan-Teh Chang<br>
512 Sam Chen<br>
513 Ramkumar Chinchani<br>
514 Billy Crook<br>
515 Frédéric Crozat<br>
516 Matthew Daley<br>
517 Michael T. Davis<br>
518 Markus Dittrich<br>
519 Mattes Dolak<br>
520 Matthias Drochner<br>
521 Peter E.<br>
522 Florian Effenberger<br>
523 Markus Elfring<br>
524 Ryan Farmer<br>
525 Matthew Fischer<br>
526 Dean Gaudet<br>
527 Stephen Gildea<br>
528 John McGowan<br>
529 Lizik Grelier<br>
530 Daniel Griscom<br>
531 Felix Gröbert<br>
532 Bernard Guillot<br>
533 Jeff H.<br>
534 Tim H.<br>
535 Aaron Hamid<br>
536 Basil Hussain<br>
537 Darel Henman<br>
538 Magnus Holmgren<br>
539 Eric M. Hopper<br>
540 Ralf Horstmann<br>
541 Stefan Huehner<br>
542 Peter Hyman<br>
543 Derek Jennings<br>
544 Andrew Jones<br>
545 Julien Joubert<br>
546 Ralf Jungblut<br>
547 Petr Kadlec<br>
548 Robert Klemme<br>
549 Steven Kolins<br>
551 Stefan Kurtz<br>
552 Zeno Kugy<br>
553 David Laight<br>
554 Bert van Leeuwen<br>
555 Don Libes<br>
556 Paul Lieverse<br>
557 Han Liu<br>
558 Toby Lyward<br>
559 Wil Mahan<br>
560 Jindrich Makovicka<br>
561 Raphael Marichez<br>
562 Francois Marier<br>
563 Angelina Matson<br>
564 Jonathan McKenzie<br>
565 David Mediavilla<br>
566 J. Momberger<br>
567 Raphael Moll<br>
568 Mathew Murphy<br>
569 Amuro Namie<br>
570 Mark Nelson<br>
571 Adam Piggott<br>
572 Petr Písar<br>
573 Dan Price<br>
574 Kai Raven<br>
575 Roberto Ragusa<br>
576 Félix Rauch<br>
577 Chris John Riley<br>
578 Maynard Riley<br>
579 Andreas Rutkauskas<br>
580 Bart Schelstraete<br>
581 Gregory Seidman<br>
582 Atman Sense<br>
583 Chung-chieh Shan<br>
584 Benjamin C. Wiley Sittler<br>
585 Simon South<br>
586 Dan Stahlke<br>
587 Oliver Stoeneberg<br>
588 Rick Sykes<br>
589 Spinor S.<br>
590 Peter Thoenen<br>
591 Martin Thomas<br>
592 Reuben Thomas<br>
593 Guybrush Threepwood<br>
594 Joel Verhagen<br>
595 Bobby G. Vinyard<br>
596 Jochen Voss<br>
597 David Wagner<br>
598 Glenn Washburn<br>
599 Song Weijia<br>
600 Jörg Weinmann<br>
601 Darren Wiebe<br>
602 Anduin Withers<br>
603 Yang Xia<br>
604 Jarry Xu<br>
605 Oliver Yeoh<br>
606 Jamie Zawinski<br>
607 Eduard Wulff</p>
609 <p>Privoxy is based in part on code originally developed by Junkbusters
610 Corp. and Anonymous Coders.</p>
612 <p>Privoxy heavily relies on Philip Hazel's PCRE.</p>
614 <p>The code to filter compressed content makes use of zlib which is
615 written by Jean-loup Gailly and Mark Adler.</p>
617 <p>On systems that lack snprintf(), Privoxy is using a version written
618 by Mark Martinec. On systems that lack strptime(), Privoxy is using the
619 one from the GNU C Library written by Ulrich Drepper.</p>
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640 <td width="33%" align="left" valign="top">Contacting the Developers,
641 Bug Reporting and Feature Requests</td>
643 <td width="34%" align="center" valign="top"> </td>
645 <td width="33%" align="right" valign="top">See Also</td>