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46 >Privoxy 3.0.27 User Manual</TH
83 >12. Privoxy Copyright, License and History</A
86 > Copyright © 2001-2017 by Privoxy Developers <CODE
89 HREF="mailto:privoxy-devel@lists.privoxy.org"
90 >privoxy-devel@lists.privoxy.org</A
94 > Some source code is based on code Copyright © 1997 by Anonymous Coders
95 and Junkbusters, Inc. and licensed under the <I
104 > is free software; you can
105 redistribute it and/or modify it under the terms of the
108 >GNU General Public License</I
110 as published by the Free Software Foundation and included in
128 > GNU GENERAL PUBLIC LICENSE
131 Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
132 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
133 Everyone is permitted to copy and distribute verbatim copies
134 of this license document, but changing it is not allowed.
138 The licenses for most software are designed to take away your
139 freedom to share and change it. By contrast, the GNU General Public
140 License is intended to guarantee your freedom to share and change free
141 software--to make sure the software is free for all its users. This
142 General Public License applies to most of the Free Software
143 Foundation's software and to any other program whose authors commit to
144 using it. (Some other Free Software Foundation software is covered by
145 the GNU Lesser General Public License instead.) You can apply it to
148 When we speak of free software, we are referring to freedom, not
149 price. Our General Public Licenses are designed to make sure that you
150 have the freedom to distribute copies of free software (and charge for
151 this service if you wish), that you receive source code or can get it
152 if you want it, that you can change the software or use pieces of it
153 in new free programs; and that you know you can do these things.
155 To protect your rights, we need to make restrictions that forbid
156 anyone to deny you these rights or to ask you to surrender the rights.
157 These restrictions translate to certain responsibilities for you if you
158 distribute copies of the software, or if you modify it.
160 For example, if you distribute copies of such a program, whether
161 gratis or for a fee, you must give the recipients all the rights that
162 you have. You must make sure that they, too, receive or can get the
163 source code. And you must show them these terms so they know their
166 We protect your rights with two steps: (1) copyright the software, and
167 (2) offer you this license which gives you legal permission to copy,
168 distribute and/or modify the software.
170 Also, for each author's protection and ours, we want to make certain
171 that everyone understands that there is no warranty for this free
172 software. If the software is modified by someone else and passed on, we
173 want its recipients to know that what they have is not the original, so
174 that any problems introduced by others will not reflect on the original
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177 Finally, any free program is threatened constantly by software
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179 program will individually obtain patent licenses, in effect making the
180 program proprietary. To prevent this, we have made it clear that any
181 patent must be licensed for everyone's free use or not licensed at all.
183 The precise terms and conditions for copying, distribution and
186 GNU GENERAL PUBLIC LICENSE
187 TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
189 0. This License applies to any program or other work which contains
190 a notice placed by the copyright holder saying it may be distributed
191 under the terms of this General Public License. The "Program", below,
192 refers to any such program or work, and a "work based on the Program"
193 means either the Program or any derivative work under copyright law:
194 that is to say, a work containing the Program or a portion of it,
195 either verbatim or with modifications and/or translated into another
196 language. (Hereinafter, translation is included without limitation in
197 the term "modification".) Each licensee is addressed as "you".
199 Activities other than copying, distribution and modification are not
200 covered by this License; they are outside its scope. The act of
201 running the Program is not restricted, and the output from the Program
202 is covered only if its contents constitute a work based on the
203 Program (independent of having been made by running the Program).
204 Whether that is true depends on what the Program does.
206 1. You may copy and distribute verbatim copies of the Program's
207 source code as you receive it, in any medium, provided that you
208 conspicuously and appropriately publish on each copy an appropriate
209 copyright notice and disclaimer of warranty; keep intact all the
210 notices that refer to this License and to the absence of any warranty;
211 and give any other recipients of the Program a copy of this License
212 along with the Program.
214 You may charge a fee for the physical act of transferring a copy, and
215 you may at your option offer warranty protection in exchange for a fee.
217 2. You may modify your copy or copies of the Program or any portion
218 of it, thus forming a work based on the Program, and copy and
219 distribute such modifications or work under the terms of Section 1
220 above, provided that you also meet all of these conditions:
222 a) You must cause the modified files to carry prominent notices
223 stating that you changed the files and the date of any change.
225 b) You must cause any work that you distribute or publish, that in
226 whole or in part contains or is derived from the Program or any
227 part thereof, to be licensed as a whole at no charge to all third
228 parties under the terms of this License.
230 c) If the modified program normally reads commands interactively
231 when run, you must cause it, when started running for such
232 interactive use in the most ordinary way, to print or display an
233 announcement including an appropriate copyright notice and a
234 notice that there is no warranty (or else, saying that you provide
235 a warranty) and that users may redistribute the program under
236 these conditions, and telling the user how to view a copy of this
237 License. (Exception: if the Program itself is interactive but
238 does not normally print such an announcement, your work based on
239 the Program is not required to print an announcement.)
241 These requirements apply to the modified work as a whole. If
242 identifiable sections of that work are not derived from the Program,
243 and can be reasonably considered independent and separate works in
244 themselves, then this License, and its terms, do not apply to those
245 sections when you distribute them as separate works. But when you
246 distribute the same sections as part of a whole which is a work based
247 on the Program, the distribution of the whole must be on the terms of
248 this License, whose permissions for other licensees extend to the
249 entire whole, and thus to each and every part regardless of who wrote it.
251 Thus, it is not the intent of this section to claim rights or contest
252 your rights to work written entirely by you; rather, the intent is to
253 exercise the right to control the distribution of derivative or
254 collective works based on the Program.
256 In addition, mere aggregation of another work not based on the Program
257 with the Program (or with a work based on the Program) on a volume of
258 a storage or distribution medium does not bring the other work under
259 the scope of this License.
261 3. You may copy and distribute the Program (or a work based on it,
262 under Section 2) in object code or executable form under the terms of
263 Sections 1 and 2 above provided that you also do one of the following:
265 a) Accompany it with the complete corresponding machine-readable
266 source code, which must be distributed under the terms of Sections
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274 customarily used for software interchange; or,
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299 4. You may not copy, modify, sublicense, or distribute the Program
300 except as expressly provided under this License. Any attempt
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302 void, and will automatically terminate your rights under this License.
303 However, parties who have received copies, or rights, from you under
304 this License will not have their licenses terminated so long as such
305 parties remain in full compliance.
307 5. You are not required to accept this License, since you have not
308 signed it. However, nothing else grants you permission to modify or
309 distribute the Program or its derivative works. These actions are
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311 modifying or distributing the Program (or any work based on the
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313 all its terms and conditions for copying, distributing or modifying
314 the Program or works based on it.
316 6. Each time you redistribute the Program (or any work based on the
317 Program), the recipient automatically receives a license from the
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319 these terms and conditions. You may not impose any further
320 restrictions on the recipients' exercise of the rights granted herein.
321 You are not responsible for enforcing compliance by third parties to
324 7. If, as a consequence of a court judgment or allegation of patent
325 infringement or for any other reason (not limited to patent issues),
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330 License and any other pertinent obligations, then as a consequence you
331 may not distribute the Program at all. For example, if a patent
332 license would not permit royalty-free redistribution of the Program by
333 all those who receive copies directly or indirectly through you, then
334 the only way you could satisfy both it and this License would be to
335 refrain entirely from distribution of the Program.
337 If any portion of this section is held invalid or unenforceable under
338 any particular circumstance, the balance of the section is intended to
339 apply and the section as a whole is intended to apply in other
342 It is not the purpose of this section to induce you to infringe any
343 patents or other property right claims or to contest validity of any
344 such claims; this section has the sole purpose of protecting the
345 integrity of the free software distribution system, which is
346 implemented by public license practices. Many people have made
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350 to distribute software through any other system and a licensee cannot
353 This section is intended to make thoroughly clear what is believed to
354 be a consequence of the rest of this License.
356 8. If the distribution and/or use of the Program is restricted in
357 certain countries either by patents or by copyrighted interfaces, the
358 original copyright holder who places the Program under this License
359 may add an explicit geographical distribution limitation excluding
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361 countries not thus excluded. In such case, this License incorporates
362 the limitation as if written in the body of this License.
364 9. The Free Software Foundation may publish revised and/or new versions
365 of the General Public License from time to time. Such new versions will
366 be similar in spirit to the present version, but may differ in detail to
367 address new problems or concerns.
369 Each version is given a distinguishing version number. If the Program
370 specifies a version number of this License which applies to it and "any
371 later version", you have the option of following the terms and conditions
372 either of that version or of any later version published by the Free
373 Software Foundation. If the Program does not specify a version number of
374 this License, you may choose any version ever published by the Free Software
377 10. If you wish to incorporate parts of the Program into other free
378 programs whose distribution conditions are different, write to the author
379 to ask for permission. For software which is copyrighted by the Free
380 Software Foundation, write to the Free Software Foundation; we sometimes
381 make exceptions for this. Our decision will be guided by the two goals
382 of preserving the free status of all derivatives of our free software and
383 of promoting the sharing and reuse of software generally.
387 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
388 FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
389 OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
390 PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
391 OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
392 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
393 TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
394 PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
395 REPAIR OR CORRECTION.
397 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
398 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
399 REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
400 INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
401 OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
402 TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
403 YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
404 PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
405 POSSIBILITY OF SUCH DAMAGES.
407 END OF TERMS AND CONDITIONS
409 How to Apply These Terms to Your New Programs
411 If you develop a new program, and you want it to be of the greatest
412 possible use to the public, the best way to achieve this is to make it
413 free software which everyone can redistribute and change under these terms.
415 To do so, attach the following notices to the program. It is safest
416 to attach them to the start of each source file to most effectively
417 convey the exclusion of warranty; and each file should have at least
418 the "copyright" line and a pointer to where the full notice is found.
420 <one line to give the program's name and a brief idea of what it does.>
421 Copyright (C) <year> <name of author>
423 This program is free software; you can redistribute it and/or modify
424 it under the terms of the GNU General Public License as published by
425 the Free Software Foundation; either version 2 of the License, or
426 (at your option) any later version.
428 This program is distributed in the hope that it will be useful,
429 but WITHOUT ANY WARRANTY; without even the implied warranty of
430 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
431 GNU General Public License for more details.
433 You should have received a copy of the GNU General Public License along
434 with this program; if not, write to the Free Software Foundation, Inc.,
435 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
437 Also add information on how to contact you by electronic and paper mail.
439 If the program is interactive, make it output a short notice like this
440 when it starts in an interactive mode:
442 Gnomovision version 69, Copyright (C) year name of author
443 Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
444 This is free software, and you are welcome to redistribute it
445 under certain conditions; type `show c' for details.
447 The hypothetical commands `show w' and `show c' should show the appropriate
448 parts of the General Public License. Of course, the commands you use may
449 be called something other than `show w' and `show c'; they could even be
450 mouse-clicks or menu items--whatever suits your program.
452 You should also get your employer (if you work as a programmer) or your
453 school, if any, to sign a "copyright disclaimer" for the program, if
454 necessary. Here is a sample; alter the names:
456 Yoyodyne, Inc., hereby disclaims all copyright interest in the program
457 `Gnomovision' (which makes passes at compilers) written by James Hacker.
459 <signature of Ty Coon>, 1 April 1989
460 Ty Coon, President of Vice
462 This General Public License does not permit incorporating your program into
463 proprietary programs. If your program is a subroutine library, you may
464 consider it more useful to permit linking proprietary applications with the
465 library. If this is what you want to do, use the GNU Lesser General
466 Public License instead of this License.
481 > A long time ago, there was the <SPAN
483 >Internet Junkbuster</SPAN
485 by Anonymous Coders and Junkbusters Corporation. This saved many users a lot of
486 pain in the early days of web advertising and user tracking.</P
488 > But the web, its protocols and standards, and with it, the techniques for
489 forcing ads on users, give up autonomy over their browsing, and
490 for tracking them, keeps evolving. Unfortunately, the <SPAN
494 > did not. Version 2.0.2, published in 1998, was
495 the last official release, available from Junkbusters Corporation.
496 Fortunately, it had been released under the GNU
498 HREF="http://www.gnu.org/licenses/old-licenses/gpl-2.0.html"
502 which allowed further development by others.</P
504 > So Stefan Waldherr started maintaining an improved version of the
505 software, to which eventually a number of people contributed patches.
506 It could already replace banners with a transparent image, and had a first
507 version of pop-up killing, but it was still very closely based on the
508 original, with all its limitations, such as the lack of HTTP/1.1 support,
509 flexible per-site configuration, or content modification. The last release
510 from this effort was version 2.0.2-10, published in 2000.</P
514 HREF="https://www.privoxy.org/user-manual/copyright.html#AUTHORS"
518 picked up the thread, and started turning the software inside out, upside down,
519 and then reassembled it, adding many
521 HREF="https://www.privoxy.org/user-manual/introduction.html#FEATURES"
527 > The result of this is <SPAN
531 stable version, 3.0, was released August, 2002.
534 > As of 2012 the Junkbusters Corporation's website (http://www.junkbusters.com/)
535 has been shut down, but Privoxy is still actively maintained.</P
546 >Current Privoxy Team:</P
548 CLASS="LITERALLAYOUT"
549 > Fabian Keil, lead developer<br>
550 David Schmidt<br>
551 Hal Burgiss<br>
552 Lee Rian<br>
553 Roland Rosenfeld<br>
554 Ian Silvester</P
556 > Former Privoxy Team Members:</P
558 CLASS="LITERALLAYOUT"
559 > Johny Agotnes<br>
560 Rodrigo Barbosa<br>
561 Moritz Barsnick<br>
562 Ian Cummings<br>
563 Brian Dessent<br>
564 Jon Foster<br>
565 Karsten Hopp<br>
566 Alexander Lazic<br>
567 Daniel Leite<br>
568 Gábor Lipták<br>
569 Adam Lock<br>
570 Guy Laroche<br>
571 Justin McMurtry<br>
572 Mark Miller<br>
573 Gerry Murphy<br>
574 Andreas Oesterhelt<br>
575 Haroon Rafique<br>
576 Georg Sauthoff<br>
577 Thomas Steudten<br>
578 Jörg Strohmayer<br>
579 Rodney Stromlund<br>
580 Sviatoslav Sviridov<br>
581 Sarantis Paskalis<br>
582 Stefan Waldherr</P
584 > Thanks to the many people who have tested Privoxy, reported bugs, provided
585 patches, made suggestions, donated or contributed in some other way.
586 These include (in alphabetical order):</P
588 CLASS="LITERALLAYOUT"
589 > Rustam Abdullaev<br>
590 Clint Adams<br>
591 Anatoly Arzhnikov<br>
592 Ken Arromdee<br>
593 Natxo Asenjo<br>
594 Devin Bayer<br>
595 Havard Berland<br>
596 David Bo<br>
597 Gergely Bor<br>
598 Francois Botha<br>
599 Reiner Buehl<br>
600 Andrew J. Caines<br>
601 Clifford Caoile<br>
602 Edward Carrel<br>
603 Pak Chan<br>
604 Wan-Teh Chang<br>
605 Sam Chen<br>
606 Ramkumar Chinchani<br>
607 Billy Crook<br>
608 Frédéric Crozat<br>
609 Matthew Daley<br>
610 Michael T. Davis<br>
611 Markus Dittrich<br>
612 Mattes Dolak<br>
613 Matthias Drochner<br>
614 Peter E.<br>
615 Florian Effenberger<br>
616 Markus Elfring<br>
617 Ryan Farmer<br>
618 Matthew Fischer<br>
619 Dean Gaudet<br>
620 Stephen Gildea<br>
621 John McGowan<br>
622 Danny Goossen<br>
623 Lizik Grelier<br>
624 Daniel Griscom<br>
625 Felix Gröbert<br>
626 Bernard Guillot<br>
627 Jeff H.<br>
628 Tim H.<br>
629 Aaron Hamid<br>
630 Darel Henman<br>
631 Magnus Holmgren<br>
632 Eric M. Hopper<br>
633 Ralf Horstmann<br>
634 Stefan Huehner<br>
635 Basil Hussain<br>
636 Peter Hyman<br>
637 Derek Jennings<br>
638 Andrew Jones<br>
639 Julien Joubert<br>
640 Ralf Jungblut<br>
641 Petr Kadlec<br>
642 Robert Klemme<br>
643 Steven Kolins<br>
645 Stefan Kurtz<br>
646 Zeno Kugy<br>
647 David Laight<br>
648 Bert van Leeuwen<br>
649 Don Libes<br>
650 Paul Lieverse<br>
651 Han Liu<br>
652 Toby Lyward<br>
653 Wil Mahan<br>
654 Jindrich Makovicka<br>
655 Raphael Marichez<br>
656 Francois Marier<br>
657 Angelina Matson<br>
658 Jonathan McKenzie<br>
659 David Mediavilla<br>
660 Raphael Moll<br>
661 J. Momberger<br>
662 Mathew Murphy<br>
663 Amuro Namie<br>
664 Mark Nelson<br>
665 Tobias Netzel<br>
666 Adam Piggott<br>
667 Petr Písar<br>
668 Dan Price<br>
669 Roberto Ragusa<br>
670 Félix Rauch<br>
671 Kai Raven<br>
672 Marvin Renich<br>
673 Chris John Riley<br>
674 Maynard Riley<br>
675 Andreas Rutkauskas<br>
676 Bart Schelstraete<br>
677 Gregory Seidman<br>
678 Atman Sense<br>
679 Chung-chieh Shan<br>
680 Johan Sintorn<br>
681 Benjamin C. Wiley Sittler<br>
682 Simon South<br>
683 Dan Stahlke<br>
684 Oliver Stoeneberg<br>
685 Rick Sykes<br>
686 Spinor S.<br>
687 Peter Thoenen<br>
688 Marc Thomas<br>
689 Martin Thomas<br>
690 Reuben Thomas<br>
691 Guybrush Threepwood<br>
692 Joel Verhagen<br>
693 Bobby G. Vinyard<br>
694 Jochen Voss<br>
695 David Wagner<br>
696 Glenn Washburn<br>
697 Song Weijia<br>
698 Jörg Weinmann<br>
699 Darren Wiebe<br>
700 Anduin Withers<br>
701 Eduard Wulff<br>
702 Yang Xia<br>
703 Jarry Xu<br>
704 Oliver Yeoh<br>
705 Yossi Zahn<br>
706 Jamie Zawinski</P
708 > Privoxy is based in part on code originally developed by
709 Junkbusters Corp. and Anonymous Coders.</P
711 > Privoxy heavily relies on Philip Hazel's PCRE.</P
713 > The code to filter compressed content makes use of zlib
714 which is written by Jean-loup Gailly and Mark Adler.</P
716 > On systems that lack snprintf(), Privoxy is using a version
717 written by Mark Martinec. On systems that lack strptime(),
718 Privoxy is using the one from the GNU C Library written
719 by Ulrich Drepper.</P
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