-Privoxy Developer Manual
+ Privoxy Developer Manual
-By: Privoxy Developers
+ [Copyright[ (c) 2001-2008 by Privoxy Developers]]
-$Id: developer-manual.sgml,v 1.35 2002/04/17 15:16:15 oes Exp $
+ $Id: developer-manual.txt,v 1.43 2008/01/19 21:41:36 hal9 Exp $
-The developer manual gives the users information on how to help the developer
-team. It provides guidance on coding, testing, documentation and other issues.
+ The developer manual provides guidance on coding, testing, packaging,
+ documentation and other issues of importance to those involved with
+ Privoxy development. It is mandatory (and helpful!) reading for anyone who
+ wants to join the team. Note that it's currently out of date and may not
+ be entirely correct. As always, patches are welcome.
-You can find the latest version of the this manual at http://www.privoxy.org/
-developer-manual/. Please see the Contact section on how to contact the
-developers.
+ Please note that this document is constantly evolving. This copy
+ represents the state at the release of version 3.0.8. You can find the
+ latest version of the this manual at
+ http://www.privoxy.org/developer-manual/. Please see the Contact section
+ on how to contact the developers.
--------------------------------------------------------------------------------
+ --------------------------------------------------------------------------
-Table of Contents
-
-1. Introduction
-3. Quickstart to Privoxy Development
-4. The CVS Repository
-
- 4.1. Access to CVS
- 4.2. CVS Commit Guideline
- 4.3. Discussing Changes First
-
-5. Documentation Guidelines
-
- 5.1. Quickstart to Docbook and SGML
- 5.2. Privoxy Documentation Style
- 5.3. Privoxy Custom Entities
-
-6. Coding Guidelines
-
- 6.1. Introduction
- 6.2. Using Comments
-
- 6.2.1. Comment, Comment, Comment
- 6.2.2. Use blocks for comments
- 6.2.3. Keep Comments on their own line
- 6.2.4. Comment each logical step
- 6.2.5. Comment All Functions Thoroughly
- 6.2.6. Comment at the end of braces if the content is more than one
- screen length
-
- 6.3. Naming Conventions
-
- 6.3.1. Variable Names
- 6.3.2. Function Names
- 6.3.3. Header file prototypes
- 6.3.4. Enumerations, and #defines
- 6.3.5. Constants
-
- 6.4. Using Space
-
- 6.4.1. Put braces on a line by themselves.
- 6.4.2. ALL control statements should have a block
- 6.4.3. Do not belabor/blow-up boolean expressions
- 6.4.4. Use white space freely because it is free
- 6.4.5. Don't use white space around structure operators
- 6.4.6. Make the last brace of a function stand out
- 6.4.7. Use 3 character indentions
-
- 6.5. Initializing
-
- 6.5.1. Initialize all variables
-
- 6.6. Functions
-
- 6.6.1. Name functions that return a boolean as a question.
- 6.6.2. Always specify a return type for a function.
- 6.6.3. Minimize function calls when iterating by using variables
- 6.6.4. Pass and Return by Const Reference
- 6.6.5. Pass and Return by Value
- 6.6.6. Names of include files
- 6.6.7. Provide multiple inclusion protection
- 6.6.8. Use `extern "C"` when appropriate
- 6.6.9. Where Possible, Use Forward Struct Declaration Instead of
- Includes
-
- 6.7. General Coding Practices
-
- 6.7.1. Turn on warnings
- 6.7.2. Provide a default case for all switch statements
- 6.7.3. Try to avoid falling through cases in a switch statement.
- 6.7.4. Use 'long' or 'short' Instead of 'int'
- 6.7.5. Don't mix size_t and other types
- 6.7.6. Declare each variable and struct on its own line.
- 6.7.7. Use malloc/zalloc sparingly
- 6.7.8. The Programmer Who Uses 'malloc' is Responsible for Ensuring
- 'free'
- 6.7.9. Add loaders to the `file_list' structure and in order
- 6.7.10. "Uncertain" new code and/or changes to existing code, use FIXME
-
- 6.8. Addendum: Template for files and function comment blocks:
-
-7. Testing Guidelines
-
- 7.1. Testplan for releases
- 7.2. Test reports
-
-8. Releasing a New Version
-
- 8.1. Before the Release
- 8.2. Building and Releasing the Packages
-
- 8.2.1. Source Tarball
- 8.2.2. SuSE or Red Hat
- 8.2.3. OS/2
- 8.2.4. Solaris
- 8.2.5. Windows
- 8.2.6. Debian
- 8.2.7. Mac OSX
- 8.2.8. FreeBSD
- 8.2.9. HP-UX 11
- 8.2.10. Amiga OS
- 8.2.11. AIX
-
- 8.3. After the Release
-
-9. Update the Webserver
-10. Contacting the developers, Bug Reporting and Feature Requests
-11. Copyright and History
-
- 11.1. Copyright
- 11.2. History
-
-12. See also
-
--------------------------------------------------------------------------------
+ Table of Contents
+
+ 1. Introduction
+
+ 1.1. Quickstart to Privoxy Development
+
+ 2. The CVS Repository
+
+ 2.1. Access to CVS
+
+ 2.2. Branches
+
+ 2.3. CVS Commit Guidelines
+
+ 3. Documentation Guidelines
+
+ 3.1. Quickstart to Docbook and SGML
+
+ 3.2. Privoxy Documentation Style
+
+ 3.3. Privoxy Custom Entities
+
+ 4. Coding Guidelines
+
+ 4.1. Introduction
+
+ 4.2. Using Comments
+
+ 4.2.1. Comment, Comment, Comment
+
+ 4.2.2. Use blocks for comments
+
+ 4.2.3. Keep Comments on their own line
+
+ 4.2.4. Comment each logical step
+
+ 4.2.5. Comment All Functions Thoroughly
+
+ 4.2.6. Comment at the end of braces if the
+ content is more than one screen length
+
+ 4.3. Naming Conventions
+
+ 4.3.1. Variable Names
+
+ 4.3.2. Function Names
+
+ 4.3.3. Header file prototypes
+
+ 4.3.4. Enumerations, and #defines
+
+ 4.3.5. Constants
+
+ 4.4. Using Space
+
+ 4.4.1. Put braces on a line by themselves.
+
+ 4.4.2. ALL control statements should have a
+ block
+
+ 4.4.3. Do not belabor/blow-up boolean
+ expressions
+
+ 4.4.4. Use white space freely because it is free
+
+ 4.4.5. Don't use white space around structure
+ operators
+
+ 4.4.6. Make the last brace of a function stand
+ out
+
+ 4.4.7. Use 3 character indentions
+
+ 4.5. Initializing
+
+ 4.5.1. Initialize all variables
+
+ 4.6. Functions
+
+ 4.6.1. Name functions that return a boolean as a
+ question.
+
+ 4.6.2. Always specify a return type for a
+ function.
+
+ 4.6.3. Minimize function calls when iterating by
+ using variables
+
+ 4.6.4. Pass and Return by Const Reference
+
+ 4.6.5. Pass and Return by Value
+
+ 4.6.6. Names of include files
+
+ 4.6.7. Provide multiple inclusion protection
+
+ 4.6.8. Use `extern "C"` when appropriate
+
+ 4.6.9. Where Possible, Use Forward Struct
+ Declaration Instead of Includes
+
+ 4.7. General Coding Practices
+
+ 4.7.1. Turn on warnings
+
+ 4.7.2. Provide a default case for all switch
+ statements
+
+ 4.7.3. Try to avoid falling through cases in a
+ switch statement.
+
+ 4.7.4. Use 'long' or 'short' Instead of 'int'
+
+ 4.7.5. Don't mix size_t and other types
+
+ 4.7.6. Declare each variable and struct on its
+ own line.
+
+ 4.7.7. Use malloc/zalloc sparingly
+
+ 4.7.8. The Programmer Who Uses 'malloc' is
+ Responsible for Ensuring 'free'
+
+ 4.7.9. Add loaders to the `file_list' structure
+ and in order
+
+ 4.7.10. "Uncertain" new code and/or changes to
+ existing code, use FIXME or XXX
+
+ 4.8. Addendum: Template for files and function comment
+ blocks:
+
+ 5. Testing Guidelines
+
+ 5.1. Testplan for releases
+
+ 5.2. Test reports
+
+ 6. Releasing a New Version
+
+ 6.1. Version numbers
+
+ 6.2. Before the Release: Freeze
+
+ 6.3. Building and Releasing the Packages
+
+ 6.3.1. Note on Privoxy Packaging
+
+ 6.3.2. Source Tarball
+
+ 6.3.3. SuSE, Conectiva or Red Hat RPM
+
+ 6.3.4. OS/2
+
+ 6.3.5. Solaris
+
+ 6.3.6. Windows
+
+ 6.3.7. Debian
+
+ 6.3.8. Mac OSX
+
+ 6.3.9. FreeBSD
+
+ 6.3.10. HP-UX 11
+
+ 6.3.11. Amiga OS
+
+ 6.3.12. AIX
+
+ 6.4. Uploading and Releasing Your Package
+
+ 6.5. After the Release
+
+ 7. Update the Webserver
+
+ 8. Contacting the developers, Bug Reporting and Feature Requests
+
+ 8.1. Get Support
+
+ 8.2. Reporting Problems
+
+ 8.2.1. Reporting Ads or Other Configuration
+ Problems
+
+ 8.2.2. Reporting Bugs
+
+ 8.3. Request New Features
+
+ 8.4. Other
+
+ 9. Privoxy Copyright, License and History
+
+ 9.1. License
+
+ 9.2. History
+
+ 10. See also
1. Introduction
-Privoxy, as an heir to Junkbuster, is an Open Source project and licensed under
-the GPL. As such, Privoxy development is potentially open to anyone who has the
-time, knowledge, and desire to contribute in any capacity. Our goals are simply
-to continue the mission, to improve Privoxy, and to make it available to as
-wide an audience as possible.
-
-One does not have to be a programmer to contribute. Packaging, testing, and
-porting, are all important jobs as well.
-
--------------------------------------------------------------------------------
-
-3. Quickstart to Privoxy Development
-
-You'll need an account on Sourceforge to support our development. Mail your ID
-to the list and wait until a project manager has added you.
-
-For the time being (read, this section is under construction), please refer to
-the extensive comments in the source code.
-
--------------------------------------------------------------------------------
-
-4. The CVS Repository
-
-If you intend to help us with programming, documentation or packaging you will
-need write access to our holy grail, the CVS repository. Please read this
-chapter completely before accessing via CVS.
-
--------------------------------------------------------------------------------
-
-4.1. Access to CVS
-
-The project's CVS repository is hosted on SourceForge. Please refer to the
-chapters 6 and 7 in SF's site documentation for the technical access details
-for your operating system. For historical reasons, the CVS server is called
-cvs.ijbswa.sourceforge.net, the repository is called ijbswa, and the source
-tree module is called current.
-
--------------------------------------------------------------------------------
-
-4.2. CVS Commit Guideline
-
-The source tree is the heart of every software project. Every effort must be
-made to ensure that it is readable, compilable and consistent at all times. We
-therefore ask anyone with CVS access to strictly adhere to the following
-guidelines:
-
- * Never (read: never, ever) be tempted to commit that small change without
- testing it thoroughly first. When we're close to a public release, ask a
- fellow developer to review your changes.
-
- * Your commit message should give a concise overview of what you changed (no
- big details) and why you changed it Just check previous messages for good
- examples.
-
- * Don't use the same message on multiple files, unless it equally applies to
- all those files.
-
- * If your changes span multiple files, and the code won't recompile unless
- all changes are commited (e.g. when changing the signature of a function),
- then commit all files one after another, without long delays in beween. If
- necessary, prepare the commit messages in advance.
-
- * Before changing things on CVS, make sure that your changes are in line with
- the team's general consensus on what should be done (see below).
-
--------------------------------------------------------------------------------
-
-4.3. Discussing Changes First
-
-We don't have a too formal policy on this, just use common sense. Hints: If it
-is..
-
- 1. ..a bugfix / clean-up / cosmetic thing: shoot
-
- 2. ..a new feature that can be turned off: shoot
-
- 3. ..a clear improvement w/o side effects on other parts of the code: shoot
-
- 4. ..a matter of taste: ask the list
-
- 5. ..a major redesign of some part of the code: ask the list
-
-Note that near a major public release, we get a bit more cautious - if unsure,
-it doesn't hurt to ask first. There is always the possibility to submit a patch
-to the patches tracker instead.
-
--------------------------------------------------------------------------------
-
-5. Documentation Guidelines
-
-All formal documents are maintained in Docbook SGML and located in the doc/
-source/* directory. You will need Docbook, the Docbook DTD's and the Docbook
-modular stylesheets (or comparable alternatives), and either jade or openjade
-(recommended) installed in order to build docs from source. Currently there is
-user-manual, FAQ, and, of course this, the developer-manual in this format. The
-README, AUTHORS privoxy.1 (man page) files are also now maintained as Docbook
-SGML. The finished files are all in the top-level source directory are
-generated files! Also, index.html, the Privoxy home page, is maintained as
-SGML. DO NOT edit these directly. Edit the SGML source, or contact someone
-involved in the documentation (at present Stefan and Hal).
-
-Other, less formal documents (e.g. LICENSE, INSTALL) are maintained as plain
-text files in the top-level source directory. At least for the time being.
-
-Packagers are encouraged to include this documentation. For those without the
-ability to build the docs locally, text versions of each are kept in CVS. HTML
-versions are also now being kept in CVS under doc/webserver/*.
-
-Formal documents are built with the Makefile targets of make dok, or
-alternately make redhat-dok. If you have problems, try both. The build process
-uses the document SGML sources in doc/source/*/* to update all text files in
-doc/text/ and to update all HTML documents in doc/webserver/.
-
-Documentation writers should please make sure documents build successfully
-before committing to CVS, if possible.
-
-How do you update the webserver (i.e. the pages on privoxy.org)?
-
- 1. First, build the docs by running make dok (or alternately make redhat-dok).
-
- 2. Run make webserver which copies all files from doc/webserver to the
- sourceforge webserver via scp.
-
-Finished docs should be occasionally submitted to CVS (doc/webserver/*/*.html)
-so that those without the ability to build them locally, have access to them if
-needed. This is especially important just prior to a new release! Please do
-this after the $VERSION and other release specific data in configure.in has
-been updated (this is done just prior to a new release).
-
--------------------------------------------------------------------------------
-
-5.1. Quickstart to Docbook and SGML
-
-If you are not familiar with SGML, it is a markup language similar to HTML.
-Actually, not a mark up language per se, but a language used to define markup
-languages. In fact, HTML is an SGML application. Both will use "tags" to format
-text and other content. SGML tags can be much more varied, and flexible, but do
-much of the same kinds of things. The tags, or "elements", are definable in
-SGML. There is no set "standards". Since we are using Docbook, our tags are
-those that are defined by Docbook. Much of how the finish document is rendered
-is determined by the "stylesheets". The stylesheets determine how each tag gets
-translated to HTML, or other formats.
-
-Tags in Docbook SGML need to be always "closed". If not, you will likely
-generate errors. Example: <title>My Title</title>. They are also
-case-insensitive, but we strongly suggest using all lower case. This keeps
-compatibility with [Docbook] XML.
-
-Our documents use "sections" for the most part. Sections will be processed into
-HTML headers (e.g. h1 for sect1). The Docbook stylesheets will use these to
-also generate the Table of Contents for each doc. Our TOC's are set to a depth
-of three. Meaning sect1, sect2, and sect3 will have TOC entries, but sect4 will
-not. Each section requires a <title> element, and at least one <para>. There is
-a limit of five section levels in Docbook, but generally three should be
-sufficient for our purposes.
-
-Some common elements that you likely will use:
-
-, paragraph delimiter. Most text needs to be within paragraph elements (there
-are some exceptions).
-, the stylesheets make this italics.
-, files and directories.
-, command examples.
-, like
-, more or less.
-, list with bullets.
-, member of the above.
-, screen output, implies .
-, like HTML tag.
-, for, doh, quoting text.
-
-Look at any of the existing docs for examples of all these and more.
-
-You might also find "Writing Documentation Using DocBook - A Crash Course"
-useful.
-
--------------------------------------------------------------------------------
-
-5.2. Privoxy Documentation Style
-
-It will be easier if everyone follows a similar writing style. This just makes
-it easier to read what someone else has written if it is all done in a similar
-fashion.
-
-Here it is:
-
- * All tags should be lower case.
-
- * Tags delimiting a block of text (even small blocks) should be on their own
- line. Like:
-
- <para>
- Some text goes here.
- </para>
-
-
- Tags marking individual words, or few words, should be in-line:
-
- Just to <emphasis>emphasize</emphasis>, some text goes here.
-
-
- * Tags should be nested and step indented for block text like: (except
- in-line tags)
-
- <para>
- <itemizedlist>
- <para>
- <listitem>
- Some text goes here in our list example.
- </listitem>
- </para>
- </itemizedlist>
- </para>
-
-
- This makes it easier to find the text amongst the tags ;-)
-
- * Use white space to separate logical divisions within a document, like
- between sections. Running everything together consistently makes it harder
- to read and work on.
-
- * Do not hesitate to make comments. Comments can either use the <comment>
- element, or the <!-- --> style comment familiar from HTML. (Note in Docbook
- v4.x <comment> is replaced by <remark>.)
-
- * We have an international audience. Refrain from slang, or English
- idiosyncrasies (too many to list :). Humor also does not translate well
- sometimes.
-
- * Try to keep overall line lengths in source files to 80 characters or less
- for obvious reasons. This is not always possible, with lengthy URLs for
- instance.
-
- * Our documents are available in differing formats. Right now, they are just
- plain text, and HTML, but PDF, and others is always a future possibility.
- Be careful with URLs (<ulink>), and avoid this mistake:
-
- My favorite site is <ulink url="http://example.com">here</ulink>.
-
- This will render as "My favorite site is here", which is not real helpful
- in a text doc. Better like this:
-
- My favorite site is <ulink url="http://example.com">example.com</ulink>.
-
- * All documents should be spell checked occasionally. aspell can check SGML
- with the -H option. (ispell I think too.)
-
--------------------------------------------------------------------------------
-
-5.3. Privoxy Custom Entities
-
-Privoxy documentation is using a number of customized "entities" to facilitate
-documentation maintenance.
-
-We are using a set of "boilerplate" files with generic text, that is used by
-multiple docs. This way we can write something once, and use it repeatedly
-without having to re-write the same content over and over again. If editing
-such a file, keep in mind that it should be generic. That is the purpose; so it
-can be used in varying contexts without additional modifications.
-
-We are also using what Docbook calls "internal entities". These are like
-variables in programming. Well, sort of. For instance, we have the p-version
-entity that contains the current Privoxy version string. You are strongly
-encouraged to use these where possible. Some of these obviously require
-re-setting with each release (done by the Makefile). A sampling of custom
-entities are listed below. See any of the main docs for examples.
-
- * Re- "boilerplate" text entities are defined like:
-
- <!entity supported SYSTEM "supported.sgml">
-
- In this example, the contents of the file, supported.sgml is available for
- inclusion anywhere in the doc. To make this happen, just reference the now
- defined entity: &supported; (starts with an ampersand and ends with a
- semi-colon), and the contents will be dumped into the finished doc at that
- point.
-
- * Commonly used "internal entities":
-
- p-version: the Privoxy version string, e.g. "2.9.14".
- p-status: the project status, either "alpha", "beta", or "stable".
- p-not-stable: use to conditionally include text in "not stable" releases
- (e.g. "beta").
- p-stable: just the opposite.
- p-text: this doc is only generated as text.
-
-There are others in various places that are defined for a specific purpose.
-Read the source!
-
--------------------------------------------------------------------------------
-
-6. Coding Guidelines
-
-6.1. Introduction
-
-This set of standards is designed to make our lives easier. It is developed
-with the simple goal of helping us keep the "new and improved Privoxy"
-consistent and reliable. Thus making maintenance easier and increasing chances
-of success of the project.
-
-And that of course comes back to us as individuals. If we can increase our
-development and product efficiencies then we can solve more of the request for
-changes/improvements and in general feel good about ourselves. ;->
-
--------------------------------------------------------------------------------
-
-6.2. Using Comments
-
-6.2.1. Comment, Comment, Comment
-
-Explanation:
-
-Comment as much as possible without commenting the obvious. For example do not
-comment "aVariable is equal to bVariable". Instead explain why aVariable should
-be equal to the bVariable. Just because a person can read code does not mean
-they will understand why or what is being done. A reader may spend a lot more
-time figuring out what is going on when a simple comment or explanation would
-have prevented the extra research. Please help your brother IJB'ers out!
-
-The comments will also help justify the intent of the code. If the comment
-describes something different than what the code is doing then maybe a
-programming error is occurring.
-
-Example:
-
-/* if page size greater than 1k ... */
-if ( PageLength() > 1024 )
-{
- ... "block" the page up ...
-}
-
-/* if page size is small, send it in blocks */
-if ( PageLength() > 1024 )
-{
- ... "block" the page up ...
-}
-
-This demonstrates 2 cases of "what not to do". The first is a
-"syntax comment". The second is a comment that does not fit what
-is actually being done.
-
--------------------------------------------------------------------------------
-
-6.2.2. Use blocks for comments
-
-Explanation:
-
-Comments can help or they can clutter. They help when they are differentiated
-from the code they describe. One line comments do not offer effective
-separation between the comment and the code. Block identifiers do, by
-surrounding the code with a clear, definable pattern.
-
-Example:
-
-/*********************************************************************
- * This will stand out clearly in your code!
- *********************************************************************/
-if ( thisVariable == thatVariable )
-{
- DoSomethingVeryImportant();
-}
-
-
-/* unfortunately, this may not */
-if ( thisVariable == thatVariable )
-{
- DoSomethingVeryImportant();
-}
-
-
-if ( thisVariable == thatVariable ) /* this may not either */
-{
- DoSomethingVeryImportant();
-}
-
-Exception:
-
-If you are trying to add a small logic comment and do not wish to "disrupt" the
-flow of the code, feel free to use a 1 line comment which is NOT on the same
-line as the code.
-
--------------------------------------------------------------------------------
-
-6.2.3. Keep Comments on their own line
-
-Explanation:
-
-It goes back to the question of readability. If the comment is on the same line
-as the code it will be harder to read than the comment that is on its own line.
-
-There are three exceptions to this rule, which should be violated freely and
-often: during the definition of variables, at the end of closing braces, when
-used to comment parameters.
-
-Example:
-
-/*********************************************************************
- * This will stand out clearly in your code,
- * But the second example won't.
- *********************************************************************/
-if ( thisVariable == thatVariable )
-{
- DoSomethingVeryImportant();
-}
-
-if ( thisVariable == thatVariable ) /*can you see me?*/
-{
- DoSomethingVeryImportant(); /*not easily*/
-}
-
-
-/*********************************************************************
- * But, the encouraged exceptions:
- *********************************************************************/
-int urls_read = 0; /* # of urls read + rejected */
-int urls_rejected = 0; /* # of urls rejected */
-
-if ( 1 == X )
-{
- DoSomethingVeryImportant();
-}
-
-
-short DoSomethingVeryImportant(
- short firstparam, /* represents something */
- short nextparam /* represents something else */ )
-{
- ...code here...
-
-} /* -END- DoSomethingVeryImportant */
-
--------------------------------------------------------------------------------
-
-6.2.4. Comment each logical step
-
-Explanation:
+ Privoxy, as an heir to Junkbuster, is a Free Software project and the code
+ is licensed under the GPL. As such, Privoxy development is potentially
+ open to anyone who has the time, knowledge, and desire to contribute in
+ any capacity. Our goals are simply to continue the mission, to improve
+ Privoxy, and to make it available to as wide an audience as possible.
+
+ One does not have to be a programmer to contribute. Packaging, testing,
+ documenting and porting, are all important jobs as well.
+
+ --------------------------------------------------------------------------
+
+ 1.1. Quickstart to Privoxy Development
+
+ The first step is to join the developer's mailing list. You can submit
+ your ideas, or even better patches. Patches are best submitted to the
+ Sourceforge tracker set up for this purpose, but can be sent to the list
+ for review too.
+
+ You will also need to have a cvs package installed, which will entail
+ having ssh installed as well (which seems to be a requirement of
+ SourceForge), in order to access the cvs repository. Having the GNU build
+ tools is also going to be important (particularly, autoconf and gmake).
+
+ For the time being (read, this section is under construction), you can
+ also refer to the extensive comments in the source code. In fact, reading
+ the code is recommended in any case.
+
+ --------------------------------------------------------------------------
+
+2. The CVS Repository
+
+ If you become part of the active development team, you will eventually
+ need write access to our holy grail, the CVS repository. One of the team
+ members will need to set this up for you. Please read this chapter
+ completely before accessing via CVS.
+
+ --------------------------------------------------------------------------
+
+ 2.1. Access to CVS
+
+ The project's CVS repository is hosted on SourceForge. Please refer to the
+ chapters 6 and 7 in SF's site documentation for the technical access
+ details for your operating system. For historical reasons, the CVS server
+ is called ijbswa.cvs.sourceforge.net, the repository is called ijbswa, and
+ the source tree module is called current.
+
+ --------------------------------------------------------------------------
+
+ 2.2. Branches
+
+ Within the CVS repository, there are modules and branches. As mentioned,
+ the sources are in the current "module". Other modules are present for
+ platform specific issues. There is a webview of the CVS hierarchy at
+ http://ijbswa.cvs.sourceforge.net/ijbswa/, which might help with
+ visualizing how these pieces fit together.
+
+ Branches are used to fork a sub-development path from the main trunk.
+ Within the current module where the sources are, there is always at least
+ one "branch" from the main trunk devoted to a stable release series. The
+ main trunk is where active development takes place for the next stable
+ series (e.g. 3.2.x). So just prior to each stable series (e.g. 3.0.x), a
+ branch is created just for stable series releases (e.g. 3.0.0 -> 3.0.1 ->
+ 3.0.2, etc). Once the initial stable release of any stable branch has
+ taken place, this branch is only used for bugfixes, which have had prior
+ testing before being committed to CVS. (See Version Numbers below for
+ details on versioning.)
+
+ At one time there were two distinct branches: stable and unstable. The
+ more drastic changes were to be in the unstable branch. These branches
+ have now been merged to minimize time and effort of maintaining two
+ branches.
+
+ --------------------------------------------------------------------------
+
+ 2.3. CVS Commit Guidelines
+
+ The source tree is the heart of every software project. Every effort must
+ be made to ensure that it is readable, compilable and consistent at all
+ times. There are differing guidelines for the stable branch and the main
+ development trunk, and we ask anyone with CVS access to strictly adhere to
+ the following guidelines:
+
+ Basic Guidelines, for all branches:
+
+ * Please don't commit even a small change without testing it thoroughly
+ first. When we're close to a public release, ask a fellow developer to
+ review your changes.
+
+ * Your commit message should give a concise overview of what you changed
+ (no big details) and why you changed it Just check previous messages
+ for good examples.
+
+ * Don't use the same message on multiple files, unless it equally
+ applies to all those files.
+
+ * If your changes span multiple files, and the code won't recompile
+ unless all changes are committed (e.g. when changing the signature of
+ a function), then commit all files one after another, without long
+ delays in between. If necessary, prepare the commit messages in
+ advance.
+
+ * Before changing things on CVS, make sure that your changes are in line
+ with the team's general consensus on what should be done.
+
+ * Note that near a major public release, we get more cautious. There is
+ always the possibility to submit a patch to the patch tracker instead.
+
+ --------------------------------------------------------------------------
+
+3. Documentation Guidelines
+
+ All formal documents are maintained in Docbook SGML and located in the
+ doc/source/* directory. You will need Docbook, the Docbook DTD's and the
+ Docbook modular stylesheets (or comparable alternatives), and either jade
+ or openjade (recommended) installed in order to build docs from source.
+ Currently there is user-manual, FAQ, and, of course this, the
+ developer-manual in this format. The README, AUTHORS, INSTALL, privoxy.1
+ (man page), and config files are also now maintained as Docbook SGML.
+ These files, when built, in the top-level source directory are generated
+ files! Also, the Privoxy index.html (and a variation on this file,
+ privoxy-index.html, meant for inclusion with doc packages), are maintained
+ as SGML as well. DO NOT edit these directly. Edit the SGML source, or
+ contact someone involved in the documentation.
+
+ config requires some special handling. The reason it is maintained this
+ way is so that the extensive comments in the file mirror those in
+ user-manual. But the conversion process requires going from SGML to HTML
+ to text to special formatting required for the embedded comments. Some of
+ this does not survive so well. Especially some of the examples that are
+ longer than 80 characters. The build process for this file outputs to
+ config.new, which should be reviewed for errors and mis-formatting. Once
+ satisfied that it is correct, then it should be hand copied to config.
+
+ Other, less formal documents (e.g. LICENSE) are maintained as plain text
+ files in the top-level source directory.
+
+ Packagers are encouraged to include this documentation. For those without
+ the ability to build the docs locally, text versions of each are kept in
+ CVS. HTML versions are also being kept in CVS under doc/webserver/*. And
+ PDF version are kept in doc/pdf/*.
+
+ Formal documents are built with the Makefile targets of make dok, or
+ alternately make redhat-dok. If you have problems, try both. The build
+ process uses the document SGML sources in doc/source/*/* to update all
+ text files in doc/text/ and to update all HTML documents in
+ doc/webserver/.
+
+ Documentation writers should please make sure documents build successfully
+ before committing to CVS, if possible.
+
+ How do you update the webserver (i.e. the pages on privoxy.org)?
+
+ 1. First, build the docs by running make dok (or alternately make
+ redhat-dok). For PDF docs, do make dok-pdf.
+
+ 2. Run make webserver which copies all files from doc/webserver to the
+ sourceforge webserver via scp.
+
+ Finished docs should be occasionally submitted to CVS
+ (doc/webserver/*/*.html) so that those without the ability to build them
+ locally, have access to them if needed. This is especially important just
+ prior to a new release! Please do this after the $VERSION and other
+ release specific data in configure.in has been updated (this is done just
+ prior to a new release).
+
+ --------------------------------------------------------------------------
+
+ 3.1. Quickstart to Docbook and SGML
+
+ If you are not familiar with SGML, it is a markup language similar to
+ HTML. Actually, not a mark up language per se, but a language used to
+ define markup languages. In fact, HTML is an SGML application. Both will
+ use "tags" to format text and other content. SGML tags can be much more
+ varied, and flexible, but do much of the same kinds of things. The tags,
+ or "elements", are definable in SGML. There is no set "standards". Since
+ we are using Docbook, our tags are those that are defined by Docbook. Much
+ of how the finish document is rendered is determined by the "stylesheets".
+ The stylesheets determine how each tag gets translated to HTML, or other
+ formats.
+
+ Tags in Docbook SGML need to be always "closed". If not, you will likely
+ generate errors. Example: <title>My Title</title>. They are also
+ case-insensitive, but we strongly suggest using all lower case. This keeps
+ compatibility with [Docbook] XML.
+
+ Our documents use "sections" for the most part. Sections will be processed
+ into HTML headers (e.g. h1 for sect1). The Docbook stylesheets will use
+ these to also generate the Table of Contents for each doc. Our TOC's are
+ set to a depth of three. Meaning sect1, sect2, and sect3 will have TOC
+ entries, but sect4 will not. Each section requires a <title> element, and
+ at least one <para>. There is a limit of five section levels in Docbook,
+ but generally three should be sufficient for our purposes.
+
+ Some common elements that you likely will use:
+
+ <para></para>, paragraph delimiter. Most text needs to be within paragraph
+ elements (there are some exceptions).
+ <emphasis></emphasis>, the stylesheets make this italics.
+ <filename></filename>, files and directories.
+ <command></command>, command examples.
+ <literallayout></literallayout>, like <pre>, more or less.
+ <itemizedlist></itemizedlist>, list with bullets.
+ <listitem></listitem>, member of the above.
+ <screen></screen>, screen output, implies <literallayout>.
+ <ulink url="example.com"></ulink>, like HTML <a> tag.
+ <quote></quote>, for, doh, quoting text.
+
+ Look at any of the existing docs for examples of all these and more.
+
+ You might also find "Writing Documentation Using DocBook - A Crash Course"
+ useful.
+
+ --------------------------------------------------------------------------
+
+ 3.2. Privoxy Documentation Style
+
+ It will be easier if everyone follows a similar writing style. This just
+ makes it easier to read what someone else has written if it is all done in
+ a similar fashion.
+
+ Here it is:
+
+ * All tags should be lower case.
+
+ * Tags delimiting a block of text (even small blocks) should be on their
+ own line. Like:
+
+ <para>
+ Some text goes here.
+ </para>
+
+
+ Tags marking individual words, or few words, should be in-line:
+
+ Just to <emphasis>emphasize</emphasis>, some text goes here.
+
+
+ * Tags should be nested and step indented for block text like: (except
+ in-line tags)
+
+ <para>
+ <itemizedlist>
+ <para>
+ <listitem>
+ Some text goes here in our list example.
+ </listitem>
+ </para>
+ </itemizedlist>
+ </para>
+
+
+ This makes it easier to find the text amongst the tags ;-)
+ * Use white space to separate logical divisions within a document, like
+ between sections. Running everything together consistently makes it
+ harder to read and work on.
+
+ * Do not hesitate to make comments. Comments can either use the
+ <comment> element, or the <!-- --> style comment familiar from HTML.
+ (Note in Docbook v4.x <comment> is replaced by <remark>.)
+
+ * We have an international audience. Refrain from slang, or English
+ idiosyncrasies (too many to list :). Humor also does not translate
+ well sometimes.
+
+ * Try to keep overall line lengths in source files to 80 characters or
+ less for obvious reasons. This is not always possible, with lengthy
+ URLs for instance.
+
+ * Our documents are available in differing formats. Right now, they are
+ just plain text, HTML, and PDF, but others are always a future
+ possibility. Be careful with URLs (<ulink>), and avoid this mistake:
+
+ My favorite site is <ulink url="http://example.com">here</ulink>.
+
+ This will render as "My favorite site is here", which is not real
+ helpful in a text doc. Better like this:
+
+ My favorite site is <ulink
+ url="http://example.com">example.com</ulink>.
+
+ * All documents should be spell checked occasionally. aspell can check
+ SGML with the -H option. (ispell I think too.)
+
+ --------------------------------------------------------------------------
+
+ 3.3. Privoxy Custom Entities
+
+ Privoxy documentation is using a number of customized "entities" to
+ facilitate documentation maintenance.
+
+ We are using a set of "boilerplate" files with generic text, that is used
+ by multiple docs. This way we can write something once, and use it
+ repeatedly without having to re-write the same content over and over
+ again. If editing such a file, keep in mind that it should be generic.
+ That is the purpose; so it can be used in varying contexts without
+ additional modifications.
+
+ We are also using what Docbook calls "internal entities". These are like
+ variables in programming. Well, sort of. For instance, we have the
+ p-version entity that contains the current Privoxy version string. You are
+ strongly encouraged to use these where possible. Some of these obviously
+ require re-setting with each release (done by the Makefile). A sampling of
+ custom entities are listed below. See any of the main docs for examples.
+
+ * Re- "boilerplate" text entities are defined like:
+
+ <!entity supported SYSTEM "supported.sgml">
+
+ In this example, the contents of the file, supported.sgml is available
+ for inclusion anywhere in the doc. To make this happen, just reference
+ the now defined entity: &supported; (starts with an ampersand and ends
+ with a semi-colon), and the contents will be dumped into the finished
+ doc at that point.
+
+ * Commonly used "internal entities":
+
+ p-version: the Privoxy version string, e.g. "3.0.8".
+ p-status: the project status, either "alpha", "beta", or "stable".
+ p-not-stable: use to conditionally include text in "not stable"
+ releases (e.g. "beta").
+ p-stable: just the opposite.
+ p-text: this doc is only generated as text.
+
+ There are others in various places that are defined for a specific
+ purpose. Read the source!
+
+ --------------------------------------------------------------------------
+
+4. Coding Guidelines
+
+ 4.1. Introduction
+
+ This set of standards is designed to make our lives easier. It is
+ developed with the simple goal of helping us keep the "new and improved
+ Privoxy" consistent and reliable. Thus making maintenance easier and
+ increasing chances of success of the project.
+
+ And that of course comes back to us as individuals. If we can increase our
+ development and product efficiencies then we can solve more of the request
+ for changes/improvements and in general feel good about ourselves. ;->
+
+ --------------------------------------------------------------------------
+
+ 4.2. Using Comments
+
+ 4.2.1. Comment, Comment, Comment
+
+ Explanation:
+
+ Comment as much as possible without commenting the obvious. For example do
+ not comment "variable_a is equal to variable_b". Instead explain why
+ variable_a should be equal to the variable_b. Just because a person can
+ read code does not mean they will understand why or what is being done. A
+ reader may spend a lot more time figuring out what is going on when a
+ simple comment or explanation would have prevented the extra research.
+ Please help your brother IJB'ers out!
+
+ The comments will also help justify the intent of the code. If the comment
+ describes something different than what the code is doing then maybe a
+ programming error is occurring.
+
+ Example:
+
+ /* if page size greater than 1k ... */
+ if ( page_length() > 1024 )
+ {
+ ... "block" the page up ...
+ }
+
+ /* if page size is small, send it in blocks */
+ if ( page_length() > 1024 )
+ {
+ ... "block" the page up ...
+ }
+
+ This demonstrates 2 cases of "what not to do". The first is a
+ "syntax comment". The second is a comment that does not fit what
+ is actually being done.
+
+ --------------------------------------------------------------------------
+
+ 4.2.2. Use blocks for comments
+
+ Explanation:
+
+ Comments can help or they can clutter. They help when they are
+ differentiated from the code they describe. One line comments do not offer
+ effective separation between the comment and the code. Block identifiers
+ do, by surrounding the code with a clear, definable pattern.
+
+ Example:
+
+ /*********************************************************************
+ * This will stand out clearly in your code!
+ *********************************************************************/
+ if ( this_variable == that_variable )
+ {
+ do_something_very_important();
+ }
+
+
+ /* unfortunately, this may not */
+ if ( this_variable == that_variable )
+ {
+ do_something_very_important();
+ }
+
+
+ if ( this_variable == that_variable ) /* this may not either */
+ {
+ do_something_very_important();
+ }
+
+ Exception:
+
+ If you are trying to add a small logic comment and do not wish to
+ "disrupt" the flow of the code, feel free to use a 1 line comment which is
+ NOT on the same line as the code.
+
+ --------------------------------------------------------------------------
+
+ 4.2.3. Keep Comments on their own line
+
+ Explanation:
+
+ It goes back to the question of readability. If the comment is on the same
+ line as the code it will be harder to read than the comment that is on its
+ own line.
+
+ There are three exceptions to this rule, which should be violated freely
+ and often: during the definition of variables, at the end of closing
+ braces, when used to comment parameters.
+
+ Example:
+
+ /*********************************************************************
+ * This will stand out clearly in your code,
+ * But the second example won't.
+ *********************************************************************/
+ if ( this_variable == this_variable )
+ {
+ do_something_very_important();
+ }
+
+ if ( this_variable == this_variable ) /*can you see me?*/
+ {
+ do_something_very_important(); /*not easily*/
+ }
+
+
+ /*********************************************************************
+ * But, the encouraged exceptions:
+ *********************************************************************/
+ int urls_read = 0; /* # of urls read + rejected */
+ int urls_rejected = 0; /* # of urls rejected */
+
+ if ( 1 == X )
+ {
+ do_something_very_important();
+ }
+
+
+ short do_something_very_important(
+ short firstparam, /* represents something */
+ short nextparam /* represents something else */ )
+ {
+ ...code here...
+
+ } /* -END- do_something_very_important */
+
+ --------------------------------------------------------------------------
+
+ 4.2.4. Comment each logical step
+
+ Explanation:
+
+ Logical steps should be commented to help others follow the intent of the
+ written code and comments will make the code more readable.
+
+ If you have 25 lines of code without a comment, you should probably go
+ back into it to see where you forgot to put one.
+
+ Most "for", "while", "do", etc... loops _probably_ need a comment. After
+ all, these are usually major logic containers.
+
+ --------------------------------------------------------------------------
+
+ 4.2.5. Comment All Functions Thoroughly
+
+ Explanation:
+
+ A reader of the code should be able to look at the comments just prior to
+ the beginning of a function and discern the reason for its existence and
+ the consequences of using it. The reader should not have to read through
+ the code to determine if a given function is safe for a desired use. The
+ proper information thoroughly presented at the introduction of a function
+ not only saves time for subsequent maintenance or debugging, it more
+ importantly aids in code reuse by allowing a user to determine the safety
+ and applicability of any function for the problem at hand. As a result of
+ such benefits, all functions should contain the information presented in
+ the addendum section of this document.
+
+ --------------------------------------------------------------------------
+
+ 4.2.6. Comment at the end of braces if the content is more than one screen
+ length
+
+ Explanation:
+
+ Each closing brace should be followed on the same line by a comment that
+ describes the origination of the brace if the original brace is off of the
+ screen, or otherwise far away from the closing brace. This will simplify
+ the debugging, maintenance, and readability of the code.
+
+ As a suggestion , use the following flags to make the comment and its
+ brace more readable:
+
+ use following a closing brace: } /* -END- if() or while () or etc... */
+
+ Example:
+
+ if ( 1 == X )
+ {
+ do_something_very_important();
+ ...some long list of commands...
+ } /* -END- if x is 1 */
+
+ or:
+
+ if ( 1 == X )
+ {
+ do_something_very_important();
+ ...some long list of commands...
+ } /* -END- if ( 1 == X ) */
+
+ --------------------------------------------------------------------------
+
+ 4.3. Naming Conventions
+
+ 4.3.1. Variable Names
+
+ Explanation:
+
+ Use all lowercase, and separate words via an underscore ('_'). Do not
+ start an identifier with an underscore. (ANSI C reserves these for use by
+ the compiler and system headers.) Do not use identifiers which are
+ reserved in ANSI C++. (E.g. template, class, true, false, ...). This is in
+ case we ever decide to port Privoxy to C++.
+
+ Example:
+
+ int ms_iis5_hack = 0;
+
+ Instead of:
+
+ int msiis5hack = 0; int msIis5Hack = 0;
+
+ --------------------------------------------------------------------------
+
+ 4.3.2. Function Names
+
+ Explanation:
+
+ Use all lowercase, and separate words via an underscore ('_'). Do not
+ start an identifier with an underscore. (ANSI C reserves these for use by
+ the compiler and system headers.) Do not use identifiers which are
+ reserved in ANSI C++. (E.g. template, class, true, false, ...). This is in
+ case we ever decide to port Privoxy to C++.
+
+ Example:
+
+ int load_some_file( struct client_state *csp )
+
+ Instead of:
+
+ int loadsomefile( struct client_state *csp )
+ int loadSomeFile( struct client_state *csp )
+
+ --------------------------------------------------------------------------
+
+ 4.3.3. Header file prototypes
+
+ Explanation:
+
+ Use a descriptive parameter name in the function prototype in header
+ files. Use the same parameter name in the header file that you use in the
+ c file.
+
+ Example:
+
+ (.h) extern int load_aclfile( struct client_state *csp );
+ (.c) int load_aclfile( struct client_state *csp )
+
+ Instead of:
+
+ (.h) extern int load_aclfile( struct client_state * ); or
+ (.h) extern int load_aclfile();
+ (.c) int load_aclfile( struct client_state *csp )
+
+ --------------------------------------------------------------------------
+
+ 4.3.4. Enumerations, and #defines
+
+ Explanation:
+
+ Use all capital letters, with underscores between words. Do not start an
+ identifier with an underscore. (ANSI C reserves these for use by the
+ compiler and system headers.)
+
+ Example:
+
+ (enumeration) : enum Boolean { FALSE, TRUE };
+ (#define) : #define DEFAULT_SIZE 100;
+
+ Note: We have a standard naming scheme for #defines that toggle a feature
+ in the preprocessor: FEATURE_>, where > is a short (preferably 1 or 2
+ word) description.
+
+ Example:
+
+ #define FEATURE_FORCE 1
+
+ #ifdef FEATURE_FORCE
+ #define FORCE_PREFIX blah
+ #endif /* def FEATURE_FORCE */
+
+ --------------------------------------------------------------------------
+
+ 4.3.5. Constants
+
+ Explanation:
+
+ Spell common words out entirely (do not remove vowels).
+
+ Use only widely-known domain acronyms and abbreviations. Capitalize all
+ letters of an acronym.
+
+ Use underscore (_) to separate adjacent acronyms and abbreviations. Never
+ terminate a name with an underscore.
+
+ Example:
+
+ #define USE_IMAGE_LIST 1
+
+ Instead of:
+
+ #define USE_IMG_LST 1 or
+ #define _USE_IMAGE_LIST 1 or
+ #define USE_IMAGE_LIST_ 1 or
+ #define use_image_list 1 or
+ #define UseImageList 1
+
+ --------------------------------------------------------------------------
+
+ 4.4. Using Space
+
+ 4.4.1. Put braces on a line by themselves.
+
+ Explanation:
+
+ The brace needs to be on a line all by itself, not at the end of the
+ statement. Curly braces should line up with the construct that they're
+ associated with. This practice makes it easier to identify the opening and
+ closing braces for a block.
+
+ Example:
+
+ if ( this == that )
+ {
+ ...
+ }
+
+ Instead of:
+
+ if ( this == that ) { ... }
+
+ or
+
+ if ( this == that ) { ... }
+
+ Note: In the special case that the if-statement is inside a loop, and it
+ is trivial, i.e. it tests for a condition that is obvious from the purpose
+ of the block, one-liners as above may optically preserve the loop
+ structure and make it easier to read.
+
+ Status: developer-discretion.
+
+ Example exception:
+
+ while ( more lines are read )
+ {
+ /* Please document what is/is not a comment line here */
+ if ( it's a comment ) continue;
+
+ do_something( line );
+ }
+
+ --------------------------------------------------------------------------
+
+ 4.4.2. ALL control statements should have a block
+
+ Explanation:
+
+ Using braces to make a block will make your code more readable and less
+ prone to error. All control statements should have a block defined.
+
+ Example:
+
+ if ( this == that )
+ {
+ do_something();
+ do_something_else();
+ }
+
+ Instead of:
+
+ if ( this == that ) do_something(); do_something_else();
+
+ or
+
+ if ( this == that ) do_something();
+
+ Note: The first example in "Instead of" will execute in a manner other
+ than that which the developer desired (per indentation). Using code braces
+ would have prevented this "feature". The "explanation" and "exception"
+ from the point above also applies.
+
+ --------------------------------------------------------------------------
+
+ 4.4.3. Do not belabor/blow-up boolean expressions
+
+ Example:
+
+ structure->flag = ( condition );
+
+ Instead of:
+
+ if ( condition ) { structure->flag = 1; } else { structure->flag = 0; }
+
+ Note: The former is readable and concise. The later is wordy and
+ inefficient. Please assume that any developer new to the project has at
+ least a "good" knowledge of C/C++. (Hope I do not offend by that last
+ comment ... 8-)
+
+ --------------------------------------------------------------------------
+
+ 4.4.4. Use white space freely because it is free
+
+ Explanation:
+
+ Make it readable. The notable exception to using white space freely is
+ listed in the next guideline.
+
+ Example:
+
+ int first_value = 0;
+ int some_value = 0;
+ int another_value = 0;
+ int this_variable = 0;
+
+ if ( this_variable == this_variable )
+
+ first_value = old_value + ( ( some_value - another_value ) - whatever )
+
+ --------------------------------------------------------------------------
+
+ 4.4.5. Don't use white space around structure operators
+
+ Explanation:
+
+ - structure pointer operator ( "->" ) - member operator ( "." ) -
+ functions and parentheses
+
+ It is a general coding practice to put pointers, references, and function
+ parentheses next to names. With spaces, the connection between the object
+ and variable/function name is not as clear.
+
+ Example:
+
+ a_struct->a_member;
+ a_struct.a_member;
+ function_name();
+
+ Instead of: a_struct -> a_member; a_struct . a_member; function_name ();
+
+ --------------------------------------------------------------------------
+
+ 4.4.6. Make the last brace of a function stand out
+
+ Example:
+
+ int function1( ... )
+ {
+ ...code...
+ return( ret_code );
+
+ } /* -END- function1 */
+
+
+ int function2( ... )
+ {
+ } /* -END- function2 */
+
+ Instead of:
+
+ int function1( ... ) { ...code... return( ret_code ); } int function2( ...
+ ) { }
+
+ Note: Use 1 blank line before the closing brace and 2 lines afterward.
+ This makes the end of function standout to the most casual viewer.
+ Although function comments help separate functions, this is still a good
+ coding practice. In fact, I follow these rules when using blocks in "for",
+ "while", "do" loops, and long if {} statements too. After all whitespace
+ is free!
+
+ Status: developer-discretion on the number of blank lines. Enforced is the
+ end of function comments.
+
+ --------------------------------------------------------------------------
+
+ 4.4.7. Use 3 character indentions
+
+ Explanation:
+
+ If some use 8 character TABs and some use 3 character TABs, the code can
+ look *very* ragged. So use 3 character indentions only. If you like to use
+ TABs, pass your code through a filter such as "expand -t3" before checking
+ in your code.
+
+ Example:
+
+ static const char * const url_code_map[256] =
+ {
+ NULL, ...
+ };
+
+
+ int function1( ... )
+ {
+ if ( 1 )
+ {
+ return( ALWAYS_TRUE );
+ }
+ else
+ {
+ return( HOW_DID_YOU_GET_HERE );
+ }
+
+ return( NEVER_GETS_HERE );
+
+ }
+
+ --------------------------------------------------------------------------
+
+ 4.5. Initializing
+
+ 4.5.1. Initialize all variables
+
+ Explanation:
+
+ Do not assume that the variables declared will not be used until after
+ they have been assigned a value somewhere else in the code. Remove the
+ chance of accidentally using an unassigned variable.
+
+ Example:
+
+ short a_short = 0;
+ float a_float = 0;
+ struct *ptr = NULL;
+
+ Note: It is much easier to debug a SIGSEGV if the message says you are
+ trying to access memory address 00000000 and not 129FA012; or
+ array_ptr[20] causes a SIGSEV vs. array_ptr[0].
+
+ Status: developer-discretion if and only if the variable is assigned a
+ value "shortly after" declaration.
+
+ --------------------------------------------------------------------------
+
+ 4.6. Functions
+
+ 4.6.1. Name functions that return a boolean as a question.
+
+ Explanation:
+
+ Value should be phrased as a question that would logically be answered as
+ a true or false statement
+
+ Example:
+
+ should_we_block_this();
+ contains_an_image();
+ is_web_page_blank();
+
+ --------------------------------------------------------------------------
+
+ 4.6.2. Always specify a return type for a function.
-Logical steps should be commented to help others follow the intent of the
-written code and comments will make the code more readable.
+ Explanation:
-If you have 25 lines of code without a comment, you should probably go back
-into it to see where you forgot to put one.
+ The default return for a function is an int. To avoid ambiguity, create a
+ return for a function when the return has a purpose, and create a void
+ return type if the function does not need to return anything.
-Most "for", "while", "do", etc... loops _probably_ need a comment. After all,
-these are usually major logic containers.
+ --------------------------------------------------------------------------
--------------------------------------------------------------------------------
+ 4.6.3. Minimize function calls when iterating by using variables
-6.2.5. Comment All Functions Thoroughly
+ Explanation:
-Explanation:
+ It is easy to write the following code, and a clear argument can be made
+ that the code is easy to understand:
-A reader of the code should be able to look at the comments just prior to the
-beginning of a function and discern the reason for its existence and the
-consequences of using it. The reader should not have to read through the code
-to determine if a given function is safe for a desired use. The proper
-information thoroughly presented at the introduction of a function not only
-saves time for subsequent maintenance or debugging, it more importantly aids in
-code reuse by allowing a user to determine the safety and applicability of any
-function for the problem at hand. As a result of such benefits, all functions
-should contain the information presented in the addendum section of this
-document.
+ Example:
--------------------------------------------------------------------------------
+ for ( size_t cnt = 0; cnt < block_list_length(); cnt++ )
+ {
+ ....
+ }
-6.2.6. Comment at the end of braces if the content is more than one screen
-length
+ Note: Unfortunately, this makes a function call for each and every
+ iteration. This increases the overhead in the program, because the
+ compiler has to look up the function each time, call it, and return a
+ value. Depending on what occurs in the block_list_length() call, it might
+ even be creating and destroying structures with each iteration, even
+ though in each case it is comparing "cnt" to the same value, over and
+ over. Remember too - even a call to block_list_length() is a function
+ call, with the same overhead.
-Explanation:
+ Instead of using a function call during the iterations, assign the value
+ to a variable, and evaluate using the variable.
-Each closing brace should be followed on the same line by a comment that
-describes the origination of the brace if the original brace is off of the
-screen, or otherwise far away from the closing brace. This will simplify the
-debugging, maintenance, and readability of the code.
+ Example:
-As a suggestion , use the following flags to make the comment and its brace
-more readable:
+ size_t len = block_list_length();
-use following a closing brace: } /* -END- if() or while () or etc... */
+ for ( size_t cnt = 0; cnt < len; cnt++ )
+ {
+ ....
+ }
-Example:
+ Exceptions: if the value of block_list_length() *may* change or could
+ *potentially* change, then you must code the function call in the
+ for/while loop.
-if ( 1 == X )
-{
- DoSomethingVeryImportant();
- ...some long list of commands...
-} /* -END- if x is 1 */
-
-or:
-
-if ( 1 == X )
-{
- DoSomethingVeryImportant();
- ...some long list of commands...
-} /* -END- if ( 1 == X ) */
+ --------------------------------------------------------------------------
--------------------------------------------------------------------------------
+ 4.6.4. Pass and Return by Const Reference
-6.3. Naming Conventions
+ Explanation:
-6.3.1. Variable Names
+ This allows a developer to define a const pointer and call your function.
+ If your function does not have the const keyword, we may not be able to
+ use your function. Consider strcmp, if it were defined as: extern int
+ strcmp( char *s1, char *s2 );
-Explanation:
+ I could then not use it to compare argv's in main: int main( int argc,
+ const char *argv[] ) { strcmp( argv[0], "privoxy" ); }
-Use all lowercase, and separate words via an underscore ('_'). Do not start an
-identifier with an underscore. (ANSI C reserves these for use by the compiler
-and system headers.) Do not use identifiers which are reserved in ANSI C++.
-(E.g. template, class, true, false, ...). This is in case we ever decide to
-port Privoxy to C++.
+ Both these pointers are *const*! If the c runtime library maintainers do
+ it, we should too.
-Example:
+ --------------------------------------------------------------------------
-int ms_iis5_hack = 0;
+ 4.6.5. Pass and Return by Value
-Instead of:
+ Explanation:
-int msiis5hack = 0; int msIis5Hack = 0;
+ Most structures cannot fit onto a normal stack entry (i.e. they are not 4
+ bytes or less). Aka, a function declaration like: int load_aclfile( struct
+ client_state csp )
--------------------------------------------------------------------------------
+ would not work. So, to be consistent, we should declare all prototypes
+ with "pass by value": int load_aclfile( struct client_state *csp )
-6.3.2. Function Names
+ --------------------------------------------------------------------------
-Explanation:
+ 4.6.6. Names of include files
-Use all lowercase, and separate words via an underscore ('_'). Do not start an
-identifier with an underscore. (ANSI C reserves these for use by the compiler
-and system headers.) Do not use identifiers which are reserved in ANSI C++.
-(E.g. template, class, true, false, ...). This is in case we ever decide to
-port Privoxy to C++.
+ Explanation:
-Example:
+ Your include statements should contain the file name without a path. The
+ path should be listed in the Makefile, using -I as processor directive to
+ search the indicated paths. An exception to this would be for some
+ proprietary software that utilizes a partial path to distinguish their
+ header files from system or other header files.
-int load_some_file( struct client_state *csp )
+ Example:
-Instead of:
+ #include <iostream.h> /* This is not a local include */
+ #include "config.h" /* This IS a local include */
-int loadsomefile( struct client_state *csp )
-int loadSomeFile( struct client_state *csp )
+ Exception:
--------------------------------------------------------------------------------
+ /* This is not a local include, but requires a path element. */
+ #include <sys/fileName.h>
-6.3.3. Header file prototypes
+ Note: Please! do not add "-I." to the Makefile without a _very_ good
+ reason. This duplicates the #include "file.h" behavior.
-Explanation:
+ --------------------------------------------------------------------------
-Use a descriptive parameter name in the function prototype in header files. Use
-the same parameter name in the header file that you use in the c file.
+ 4.6.7. Provide multiple inclusion protection
-Example:
+ Explanation:
-(.h) extern int load_aclfile( struct client_state *csp );
-(.c) int load_aclfile( struct client_state *csp )
+ Prevents compiler and linker errors resulting from redefinition of items.
-Instead of:
+ Wrap each header file with the following syntax to prevent multiple
+ inclusions of the file. Of course, replace PROJECT_H with your file name,
+ with "." Changed to "_", and make it uppercase.
-(.h) extern int load_aclfile( struct client_state * ); or
-(.h) extern int load_aclfile();
-(.c) int load_aclfile( struct client_state *csp )
+ Example:
--------------------------------------------------------------------------------
+ #ifndef PROJECT_H_INCLUDED
+ #define PROJECT_H_INCLUDED
+ ...
+ #endif /* ndef PROJECT_H_INCLUDED */
-6.3.4. Enumerations, and #defines
+ --------------------------------------------------------------------------
-Explanation:
+ 4.6.8. Use `extern "C"` when appropriate
-Use all capital letters, with underscores between words. Do not start an
-identifier with an underscore. (ANSI C reserves these for use by the compiler
-and system headers.)
+ Explanation:
-Example:
+ If our headers are included from C++, they must declare our functions as
+ `extern "C"`. This has no cost in C, but increases the potential
+ re-usability of our code.
-(enumeration) : enum Boolean { FALSE, TRUE };
-(#define) : #define DEFAULT_SIZE 100;
+ Example:
-Note: We have a standard naming scheme for #defines that toggle a feature in
-the preprocessor: FEATURE_>, where > is a short (preferably 1 or 2 word)
-description.
+ #ifdef __cplusplus
+ extern "C"
+ {
+ #endif /* def __cplusplus */
-Example:
+ ... function definitions here ...
-#define FEATURE_FORCE 1
-
-#ifdef FEATURE_FORCE
-#define FORCE_PREFIX blah
-#endif /* def FEATURE_FORCE */
+ #ifdef __cplusplus
+ }
+ #endif /* def __cplusplus */
--------------------------------------------------------------------------------
+ --------------------------------------------------------------------------
-6.3.5. Constants
+ 4.6.9. Where Possible, Use Forward Struct Declaration Instead of Includes
-Explanation:
+ Explanation:
-Spell common words out entirely (do not remove vowels).
+ Useful in headers that include pointers to other struct's. Modifications
+ to excess header files may cause needless compiles.
-Use only widely-known domain acronyms and abbreviations. Capitalize all letters
-of an acronym.
+ Example:
-Use underscore (_) to separate adjacent acronyms and abbreviations. Never
-terminate a name with an underscore.
+ /*********************************************************************
+ * We're avoiding an include statement here!
+ *********************************************************************/
+ struct file_list;
+ extern file_list *xyz;
-Example:
+ Note: If you declare "file_list xyz;" (without the pointer), then
+ including the proper header file is necessary. If you only want to
+ prototype a pointer, however, the header file is unnecessary.
-#define USE_IMAGE_LIST 1
+ Status: Use with discretion.
-Instead of:
+ --------------------------------------------------------------------------
-#define USE_IMG_LST 1 or
-#define _USE_IMAGE_LIST 1 or
-#define USE_IMAGE_LIST_ 1 or
-#define use_image_list 1 or
-#define UseImageList 1
+ 4.7. General Coding Practices
--------------------------------------------------------------------------------
+ 4.7.1. Turn on warnings
-6.4. Using Space
+ Explanation
-6.4.1. Put braces on a line by themselves.
+ Compiler warnings are meant to help you find bugs. You should turn on as
+ many as possible. With GCC, the switch is "-Wall". Try and fix as many
+ warnings as possible.
-Explanation:
+ --------------------------------------------------------------------------
-The brace needs to be on a line all by itself, not at the end of the statement.
-Curly braces should line up with the construct that they're associated with.
-This practice makes it easier to identify the opening and closing braces for a
-block.
+ 4.7.2. Provide a default case for all switch statements
-Example:
+ Explanation:
-if ( this == that )
-{
- ...
-}
+ What you think is guaranteed is never really guaranteed. The value that
+ you don't think you need to check is the one that someday will be passed.
+ So, to protect yourself from the unknown, always have a default step in a
+ switch statement.
-Instead of:
+ Example:
-if ( this == that ) { ... }
+ switch( hash_string( cmd ) )
+ {
+ case hash_actions_file :
+ ... code ...
+ break;
-or
+ case hash_confdir :
+ ... code ...
+ break;
-if ( this == that ) { ... }
+ default :
+ log_error( ... );
+ ... anomaly code goes here ...
+ continue; / break; / exit( 1 ); / etc ...
-Note: In the special case that the if-statement is inside a loop, and it is
-trivial, i.e. it tests for a condition that is obvious from the purpose of the
-block, one-liners as above may optically preserve the loop structure and make
-it easier to read.
+ } /* end switch( hash_string( cmd ) ) */
-Status: developer-discretion.
+ Note: If you already have a default condition, you are obviously exempt
+ from this point. Of note, most of the WIN32 code calls `DefWindowProc'
+ after the switch statement. This API call *should* be included in a
+ default statement.
-Example exception:
+ Another Note: This is not so much a readability issue as a robust
+ programming issue. The "anomaly code goes here" may be no more than a
+ print to the STDERR stream (as in load_config). Or it may really be an
+ abort condition.
-while ( more lines are read )
-{
- /* Please document what is/is not a comment line here */
- if ( it's a comment ) continue;
-
- do_something( line );
-}
+ Status: Programmer discretion is advised.
--------------------------------------------------------------------------------
+ --------------------------------------------------------------------------
-6.4.2. ALL control statements should have a block
+ 4.7.3. Try to avoid falling through cases in a switch statement.
-Explanation:
+ Explanation:
-Using braces to make a block will make your code more readable and less prone
-to error. All control statements should have a block defined.
+ In general, you will want to have a 'break' statement within each 'case'
+ of a switch statement. This allows for the code to be more readable and
+ understandable, and furthermore can prevent unwanted surprises if someone
+ else later gets creative and moves the code around.
-Example:
+ The language allows you to plan the fall through from one case statement
+ to another simply by omitting the break statement within the case
+ statement. This feature does have benefits, but should only be used in
+ rare cases. In general, use a break statement for each case statement.
-if ( this == that )
-{
- DoSomething();
- DoSomethingElse();
-}
+ If you choose to allow fall through, you should comment both the fact of
+ the fall through and reason why you felt it was necessary.
-Instead of:
+ --------------------------------------------------------------------------
-if ( this == that ) DoSomething(); DoSomethingElse();
+ 4.7.4. Use 'long' or 'short' Instead of 'int'
-or
+ Explanation:
-if ( this == that ) DoSomething();
+ On 32-bit platforms, int usually has the range of long. On 16-bit
+ platforms, int has the range of short.
-Note: The first example in "Instead of" will execute in a manner other than
-that which the developer desired (per indentation). Using code braces would
-have prevented this "feature". The "explanation" and "exception" from the point
-above also applies.
+ Status: open-to-debate. In the case of most FSF projects (including
+ X/GNU-Emacs), there are typedefs to int4, int8, int16, (or equivalence ...
+ I forget the exact typedefs now). Should we add these to IJB now that we
+ have a "configure" script?
--------------------------------------------------------------------------------
+ --------------------------------------------------------------------------
-6.4.3. Do not belabor/blow-up boolean expressions
+ 4.7.5. Don't mix size_t and other types
-Example:
+ Explanation:
-structure->flag = ( condition );
+ The type of size_t varies across platforms. Do not make assumptions about
+ whether it is signed or unsigned, or about how long it is. Do not compare
+ a size_t against another variable of a different type (or even against a
+ constant) without casting one of the values.
-Instead of:
+ --------------------------------------------------------------------------
-if ( condition ) { structure->flag = 1; } else { structure->flag = 0; }
+ 4.7.6. Declare each variable and struct on its own line.
-Note: The former is readable and concise. The later is wordy and inefficient.
-Please assume that any developer new to the project has at least a "good"
-knowledge of C/C++. (Hope I do not offend by that last comment ... 8-)
+ Explanation:
--------------------------------------------------------------------------------
+ It can be tempting to declare a series of variables all on one line.
+ Don't.
-6.4.4. Use white space freely because it is free
+ Example:
-Explanation:
+ long a = 0;
+ long b = 0;
+ long c = 0;
-Make it readable. The notable exception to using white space freely is listed
-in the next guideline.
+ Instead of:
-Example:
+ long a, b, c;
-int firstValue = 0;
-int someValue = 0;
-int anotherValue = 0;
-int thisVariable = 0;
-
-if ( thisVariable == thatVariable )
-
-firstValue = oldValue + ( ( someValue - anotherValue ) - whatever )
+ Explanation: - there is more room for comments on the individual variables
+ - easier to add new variables without messing up the original ones - when
+ searching on a variable to find its type, there is less clutter to
+ "visually" eliminate
--------------------------------------------------------------------------------
+ Exceptions: when you want to declare a bunch of loop variables or other
+ trivial variables; feel free to declare them on one line. You should,
+ although, provide a good comment on their functions.
-6.4.5. Don't use white space around structure operators
+ Status: developer-discretion.
-Explanation:
+ --------------------------------------------------------------------------
-- structure pointer operator ( "->" ) - member operator ( "." ) - functions and
-parentheses
+ 4.7.7. Use malloc/zalloc sparingly
-It is a general coding practice to put pointers, references, and function
-parentheses next to names. With spaces, the connection between the object and
-variable/function name is not as clear.
+ Explanation:
-Example:
+ Create a local struct (on the stack) if the variable will live and die
+ within the context of one function call.
-aStruct->aMember;
-aStruct.aMember;
-FunctionName();
+ Only "malloc" a struct (on the heap) if the variable's life will extend
+ beyond the context of one function call.
-Instead of: aStruct -> aMember; aStruct . aMember; FunctionName ();
+ Example:
--------------------------------------------------------------------------------
+ If a function creates a struct and stores a pointer to it in a
+ list, then it should definitely be allocated via `malloc'.
-6.4.6. Make the last brace of a function stand out
+ --------------------------------------------------------------------------
-Example:
+ 4.7.8. The Programmer Who Uses 'malloc' is Responsible for Ensuring 'free'
-int function1( ... )
-{
- ...code...
- return( retCode );
-
-} /* -END- function1 */
-
-
-int function2( ... )
-{
-} /* -END- function2 */
+ Explanation:
-Instead of:
+ If you have to "malloc" an instance, you are responsible for insuring that
+ the instance is `free'd, even if the deallocation event falls within some
+ other programmer's code. You are also responsible for ensuring that
+ deletion is timely (i.e. not too soon, not too late). This is known as
+ "low-coupling" and is a "good thing (tm)". You may need to offer a
+ free/unload/destructor type function to accommodate this.
-int function1( ... ) { ...code... return( retCode ); } int function2( ... ) { }
+ Example:
-Note: Use 1 blank line before the closing brace and 2 lines afterward. This
-makes the end of function standout to the most casual viewer. Although function
-comments help separate functions, this is still a good coding practice. In
-fact, I follow these rules when using blocks in "for", "while", "do" loops, and
-long if {} statements too. After all whitespace is free!
+ int load_re_filterfile( struct client_state *csp ) { ... }
+ static void unload_re_filterfile( void *f ) { ... }
-Status: developer-discretion on the number of blank lines. Enforced is the end
-of function comments.
+ Exceptions:
--------------------------------------------------------------------------------
+ The developer cannot be expected to provide `free'ing functions for C
+ run-time library functions ... such as `strdup'.
-6.4.7. Use 3 character indentions
+ Status: developer-discretion. The "main" use of this standard is for
+ allocating and freeing data structures (complex or nested).
-Explanation:
+ --------------------------------------------------------------------------
-If some use 8 character TABs and some use 3 character TABs, the code can look *
-very* ragged. So use 3 character indentions only. If you like to use TABs, pass
-your code through a filter such as "expand -t3" before checking in your code.
+ 4.7.9. Add loaders to the `file_list' structure and in order
-Example:
+ Explanation:
-static const char * const url_code_map[256] =
-{
- NULL, ...
-};
-
-
-int function1( ... )
-{
- if ( 1 )
- {
- return( ALWAYS_TRUE );
- }
- else
- {
- return( HOW_DID_YOU_GET_HERE );
- }
-
- return( NEVER_GETS_HERE );
-
-}
+ I have ordered all of the "blocker" file code to be in alpha order. It is
+ easier to add/read new blockers when you expect a certain order.
--------------------------------------------------------------------------------
+ Note: It may appear that the alpha order is broken in places by POPUP
+ tests coming before PCRS tests. But since POPUPs can also be referred to
+ as KILLPOPUPs, it is clear that it should come first.
-6.5. Initializing
+ --------------------------------------------------------------------------
-6.5.1. Initialize all variables
+ 4.7.10. "Uncertain" new code and/or changes to existing code, use FIXME or
+ XXX
-Explanation:
+ Explanation:
-Do not assume that the variables declared will not be used until after they
-have been assigned a value somewhere else in the code. Remove the chance of
-accidentally using an unassigned variable.
+ If you have enough confidence in new code or confidence in your changes,
+ but are not *quite* sure of the repercussions, add this:
-Example:
+ /* FIXME: this code has a logic error on platform XYZ, * attempting to fix
+ */ #ifdef PLATFORM ...changed code here... #endif
-short anShort = 0;
-float aFloat = 0;
-struct *ptr = NULL;
+ or:
-Note: It is much easier to debug a SIGSEGV if the message says you are trying
-to access memory address 00000000 and not 129FA012; or arrayPtr[20] causes a
-SIGSEV vs. arrayPtr[0].
+ /* FIXME: I think the original author really meant this... */ ...changed
+ code here...
-Status: developer-discretion if and only if the variable is assigned a value
-"shortly after" declaration.
+ or:
--------------------------------------------------------------------------------
+ /* FIXME: new code that *may* break something else... */ ...new code
+ here...
+
+ Note: If you make it clear that this may or may not be a "good thing
+ (tm)", it will be easier to identify and include in the project (or
+ conversely exclude from the project).
+
+ --------------------------------------------------------------------------
+
+ 4.8. Addendum: Template for files and function comment blocks:
+
+ Example for file comments:
+
+const char FILENAME_rcs[] = "$Id: developer-manual.txt,v 1.43 2008/01/19 21:41:36 hal9 Exp $";
+/*********************************************************************
+ *
+ * File : $Source: /cvsroot/ijbswa/current/doc/text/developer-manual.txt,v $
+ *
+ * Purpose : (Fill me in with a good description!)
+ *
+ * Copyright : Written by and Copyright (C) 2001-2007 the SourceForge
+ * Privoxy team. http://www.privoxy.org/
+ *
+ * Based on the Internet Junkbuster originally written
+ * by and Copyright (C) 1997 Anonymous Coders and
+ * Junkbusters Corporation. http://www.junkbusters.com
+ *
+ * This program is free software; you can redistribute it
+ * and/or modify it under the terms of the GNU General
+ * Public License as published by the Free Software
+ * Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will
+ * be useful, but WITHOUT ANY WARRANTY; without even the
+ * implied warranty of MERCHANTABILITY or FITNESS FOR A
+ * PARTICULAR PURPOSE. See the GNU General Public
+ * License for more details.
+ *
+ * The GNU General Public License should be included with
+ * this file. If not, you can view it at
+ * http://www.gnu.org/copyleft/gpl.html
+ * or write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 ,
+ * USA
+ *
+ * Revisions :
+ * $Log: developer-manual.txt,v $
+ * Revision 1.43 2008/01/19 21:41:36 hal9
+ * Re-commit to solve various last minute issues for charsets, etc.
+ *
+ *
+ *********************************************************************/
+
+
+#include "config.h"
+
+ ...necessary include files for us to do our work...
+
+const char FILENAME_h_rcs[] = FILENAME_H_VERSION;
+
+ Note: This declares the rcs variables that should be added to the
+ "show-proxy-args" page. If this is a brand new creation by you, you are
+ free to change the "Copyright" section to represent the rights you wish to
+ maintain.
+
+ Note: The formfeed character that is present right after the comment
+ flower box is handy for (X|GNU)Emacs users to skip the verbiage and get to
+ the heart of the code (via `forward-page' and `backward-page'). Please
+ include it if you can.
+
+ Example for file header comments:
+
+#ifndef _FILENAME_H
+#define _FILENAME_H
+#define FILENAME_H_VERSION "$Id: developer-manual.txt,v 1.43 2008/01/19 21:41:36 hal9 Exp $"
+/*********************************************************************
+ *
+ * File : $Source: /cvsroot/ijbswa/current/doc/text/developer-manual.txt,v $
+ *
+ * Purpose : (Fill me in with a good description!)
+ *
+ * Copyright : Written by and Copyright (C) 2001-2007 the SourceForge
+ * Privoxy team. http://www.privoxy.org/
+ *
+ * Based on the Internet Junkbuster originally written
+ * by and Copyright (C) 1997 Anonymous Coders and
+ * Junkbusters Corporation. http://www.junkbusters.com
+ *
+ * This program is free software; you can redistribute it
+ * and/or modify it under the terms of the GNU General
+ * Public License as published by the Free Software
+ * Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will
+ * be useful, but WITHOUT ANY WARRANTY; without even the
+ * implied warranty of MERCHANTABILITY or FITNESS FOR A
+ * PARTICULAR PURPOSE. See the GNU General Public
+ * License for more details.
+ *
+ * The GNU General Public License should be included with
+ * this file. If not, you can view it at
+ * http://www.gnu.org/copyleft/gpl.html
+ * or write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 ,
+ * USA
+ *
+ * Revisions :
+ * $Log: developer-manual.txt,v $
+ * Revision 1.43 2008/01/19 21:41:36 hal9
+ * Re-commit to solve various last minute issues for charsets, etc.
+ *
+ *
+ *********************************************************************/
+
+
+#include "project.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+ ... function headers here ...
+
+
+/* Revision control strings from this header and associated .c file */
+extern const char FILENAME_rcs[];
+extern const char FILENAME_h_rcs[];
-6.6. Functions
-6.6.1. Name functions that return a boolean as a question.
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
-Explanation:
+#endif /* ndef _FILENAME_H */
-Value should be phrased as a question that would logically be answered as a
-true or false statement
+/*
+ Local Variables:
+ tab-width: 3
+ end:
+*/
-Example:
+ Example for function comments:
-ShouldWeBlockThis();
-ContainsAnImage();
-IsWebPageBlank();
+ /*********************************************************************
+ *
+ * Function : FUNCTION_NAME
+ *
+ * Description : (Fill me in with a good description!)
+ *
+ * parameters :
+ * 1 : param1 = pointer to an important thing
+ * 2 : x = pointer to something else
+ *
+ * Returns : 0 => Ok, everything else is an error.
+ *
+ *********************************************************************/
+ int FUNCTION_NAME( void *param1, const char *x )
+ {
+ ...
+ return( 0 );
--------------------------------------------------------------------------------
+ }
-6.6.2. Always specify a return type for a function.
+ Note: If we all follow this practice, we should be able to parse our code
+ to create a "self-documenting" web page.
-Explanation:
+ --------------------------------------------------------------------------
-The default return for a function is an int. To avoid ambiguity, create a
-return for a function when the return has a purpose, and create a void return
-type if the function does not need to return anything.
+5. Testing Guidelines
--------------------------------------------------------------------------------
+ To be filled.
-6.6.3. Minimize function calls when iterating by using variables
+ --------------------------------------------------------------------------
-Explanation:
+ 5.1. Testplan for releases
-It is easy to write the following code, and a clear argument can be made that
-the code is easy to understand:
+ Explain release numbers. major, minor. developer releases. etc.
-Example:
+ 1. Remove any existing rpm with rpm -e
-for ( size_t cnt = 0; cnt < blockListLength(); cnt ++ )
-{
- ....
-}
+ 2. Remove any file that was left over. This includes (but is not limited
+ to)
-Note: Unfortunately, this makes a function call for each and every iteration.
-This increases the overhead in the program, because the compiler has to look up
-the function each time, call it, and return a value. Depending on what occurs
-in the blockListLength() call, it might even be creating and destroying
-structures with each iteration, even though in each case it is comparing "cnt"
-to the same value, over and over. Remember too - even a call to blockListLength
-() is a function call, with the same overhead.
+ * /var/log/privoxy
-Instead of using a function call during the iterations, assign the value to a
-variable, and evaluate using the variable.
+ * /etc/privoxy
-Example:
+ * /usr/sbin/privoxy
-size_t len = blockListLength();
-
-for ( size_t cnt = 0; cnt < len; cnt ++ )
-{
- ....
-}
+ * /etc/init.d/privoxy
-Exceptions: if the value of blockListLength() *may* change or could *
-potentially* change, then you must code the function call in the for/while
-loop.
+ * /usr/doc/privoxy*
--------------------------------------------------------------------------------
+ 3. Install the rpm. Any error messages?
-6.6.4. Pass and Return by Const Reference
+ 4. start,stop,status Privoxy with the specific script (e.g.
+ /etc/rc.d/init/privoxy stop). Reboot your machine. Does autostart
+ work?
-Explanation:
+ 5. Start browsing. Does Privoxy work? Logfile written?
-This allows a developer to define a const pointer and call your function. If
-your function does not have the const keyword, we may not be able to use your
-function. Consider strcmp, if it were defined as: extern int strcmp( char *s1,
-char *s2 );
+ 6. Remove the rpm. Any error messages? All files removed?
-I could then not use it to compare argv's in main: int main( int argc, const
-char *argv[] ) { strcmp( argv[0], "privoxy" ); }
+ --------------------------------------------------------------------------
-Both these pointers are *const*! If the c runtime library maintainers do it, we
-should too.
+ 5.2. Test reports
--------------------------------------------------------------------------------
+ Please submit test reports only with the test form at sourceforge. Three
+ simple steps:
-6.6.5. Pass and Return by Value
+ * Select category: the distribution you test on.
-Explanation:
+ * Select group: the version of Privoxy that we are about to release.
-Most structures cannot fit onto a normal stack entry (i.e. they are not 4 bytes
-or less). Aka, a function declaration like: int load_aclfile( struct
-client_state csp )
+ * Fill the Summary and Detailed Description with something intelligent
+ (keep it short and precise).
-would not work. So, to be consistent, we should declare all prototypes with
-"pass by value": int load_aclfile( struct client_state *csp )
+ Do not mail to the mailing list (we cannot keep track on issues there).
--------------------------------------------------------------------------------
+ --------------------------------------------------------------------------
-6.6.6. Names of include files
+6. Releasing a New Version
-Explanation:
+ When we release versions of Privoxy, our work leaves our cozy secret lab
+ and has to work in the cold RealWorld[tm]. Once it is released, there is
+ no way to call it back, so it is very important that great care is taken
+ to ensure that everything runs fine, and not to introduce problems in the
+ very last minute.
-Your include statements should contain the file name without a path. The path
-should be listed in the Makefile, using -I as processor directive to search the
-indicated paths. An exception to this would be for some proprietary software
-that utilizes a partial path to distinguish their header files from system or
-other header files.
+ So when releasing a new version, please adhere exactly to the procedure
+ outlined in this chapter.
-Example:
+ The following programs are required to follow this process: ncftpput
+ (ncftp), scp, ssh (ssh), gmake (GNU's version of make), autoconf, cvs.
-#include /* This is not a local include */
-#include "config.h" /* This IS a local include */
+ --------------------------------------------------------------------------
-Exception:
+ 6.1. Version numbers
-/* This is not a local include, but requires a path element. */
-#include
+ First you need to determine which version number the release will have.
+ Privoxy version numbers consist of three numbers, separated by dots, like
+ in X.Y.Z (e.g. 3.0.0), where:
-Note: Please! do not add "-I." to the Makefile without a _very_ good reason.
-This duplicates the #include "file.h" behavior.
+ * X, the version major, is rarely ever changed. It is increased by one
+ if turning a development branch into stable substantially changes the
+ functionality, user interface or configuration syntax. Majors 1 and 2
+ were Junkbuster, and 3 will be the first stable Privoxy release.
--------------------------------------------------------------------------------
+ * Y, the version minor, represents the branch within the major version.
+ At any point in time, there are two branches being maintained: The
+ stable branch, with an even minor, say, 2N, in which no functionality
+ is being added and only bug-fixes are made, and 2N+1, the development
+ branch, in which the further development of Privoxy takes place. This
+ enables us to turn the code upside down and inside out, while at the
+ same time providing and maintaining a stable version. The minor is
+ reset to zero (and one) when the major is incremented. When a
+ development branch has matured to the point where it can be turned
+ into stable, the old stable branch 2N is given up (i.e. no longer
+ maintained), the former development branch 2N+1 becomes the new stable
+ branch 2N+2, and a new development branch 2N+3 is opened.
-6.6.7. Provide multiple inclusion protection
+ * Z, the point or sub version, represents a release of the software
+ within a branch. It is therefore incremented immediately before each
+ code freeze. In development branches, only the even point versions
+ correspond to actual releases, while the odd ones denote the evolving
+ state of the sources on CVS in between. It follows that Z is odd on
+ CVS in development branches most of the time. There, it gets increased
+ to an even number immediately before a code freeze, and is increased
+ to an odd number again immediately thereafter. This ensures that
+ builds from CVS snapshots are easily distinguished from released
+ versions. The point version is reset to zero when the minor changes.
-Explanation:
+ Stable branches work a little differently, since there should be
+ little to no development happening in such branches. Remember, only
+ bugfixes, which presumably should have had some testing before being
+ committed. Stable branches will then have their version reported as
+ 0.0.0, during that period between releases when changes are being
+ added. This is to denote that this code is not for release. Then as
+ the release nears, the version is bumped according: e.g. 3.0.1 ->
+ 0.0.0 -> 3.0.2.
-Prevents compiler and linker errors resulting from redefinition of items.
+ In summary, the main CVS trunk is the development branch where new
+ features are being worked on for the next stable series. This should
+ almost always be where the most activity takes place. There is always at
+ least one stable branch from the trunk, e.g now it is 3.0, which is only
+ used to release stable versions. Once the initial *.0 release of the
+ stable branch has been done, then as a rule, only bugfixes that have had
+ prior testing should be committed to the stable branch. Once there are
+ enough bugfixes to justify a new release, the version of this branch is
+ again incremented Example: 3.0.0 -> 3.0.1 -> 3.0.2, etc are all stable
+ releases from within the stable branch. 3.1.x is currently the main trunk,
+ and where work on 3.2.x is taking place. If any questions, please post to
+ the devel list before committing to a stable branch!
+
+ Developers should remember too that if they commit a bugfix to the stable
+ branch, this will more than likely require a separate submission to the
+ main trunk, since these are separate development trees within CVS. If you
+ are working on both, then this would require at least two separate check
+ outs (i.e main trunk, and the stable release branch, which is v_3_0_branch
+ at the moment).
+
+ --------------------------------------------------------------------------
+
+ 6.2. Before the Release: Freeze
+
+ The following must be done by one of the developers prior to each new
+ release.
+
+ * Make sure that everybody who has worked on the code in the last couple
+ of days has had a chance to yell "no!" in case they have pending
+ changes/fixes in their pipelines. Announce the freeze so that nobody
+ will interfere with last minute changes.
+
+ * Increment the version number (point from odd to even in development
+ branches!) in configure.in. (RPM spec files will need to be
+ incremented as well.)
+
+ * If default.action has changed since last release (i.e. software
+ release or standalone actions file release), bump up its version info
+ to A.B in this line:
+
+ {+add-header{X-Actions-File-Version: A.B} -filter -no-popups}
+
+ Then change the version info in doc/webserver/actions/index.php, line:
+ '$required_actions_file_version = "A.B";'
+
+ * All documentation should be rebuild after the version bump. Finished
+ docs should be then be committed to CVS (for those without the ability
+ to build these). Some docs may require rather obscure processing
+ tools. config, the man page (and the html version of the man page),
+ and the PDF docs fall in this category. REAMDE, the man page, AUTHORS,
+ and config should all also be committed to CVS for other packagers.
+ The formal docs should be uploaded to the webserver. See the Section
+ "Updating the webserver" in this manual for details.
+
+ * The User Manual is also used for context sensitive help for the CGI
+ editor. This is version sensitive, so that the user will get
+ appropriate help for his/her release. So with each release a fresh
+ version should be uploaded to the webserver (this is in addition to
+ the main User Manual link from the main page since we need to keep
+ manuals for various versions available). The CGI pages will link to
+ something like http://privoxy.org/$(VERSION)/user-manual/. This will
+ need to be updated for each new release. There is no Makefile target
+ for this at this time!!! It needs to be done manually.
+
+ * All developers should look at the ChangeLog and make sure noteworthy
+ changes are referenced.
+
+ * Commit all files that were changed in the above steps!
+
+ * Tag all files in CVS with the version number with "cvs tag v_X_Y_Z".
+ Don't use vX_Y_Z, ver_X_Y_Z, v_X.Y.Z (won't work) etc.
+
+ * If the release was in a development branch, increase the point version
+ from even to odd (X.Y.(Z+1)) again in configure.in and commit your
+ change.
+
+ * On the webserver, copy the user manual to a new top-level directory
+ called X.Y.Z. This ensures that help links from the CGI pages, which
+ have the version as a prefix, will go into the right version of the
+ manual. If this is a development branch release, also symlink
+ X.Y.(Z-1) to X.Y.Z and X.Y.(Z+1) to . (i.e. dot).
+
+ --------------------------------------------------------------------------
+
+ 6.3. Building and Releasing the Packages
+
+ Now the individual packages can be built and released. Note that for GPL
+ reasons the first package to be released is always the source tarball.
+
+ For all types of packages, including the source tarball, you must make
+ sure that you build from clean sources by exporting the right version from
+ CVS into an empty directory (just press return when asked for a password):
+
+ mkdir dist # delete or choose different name if it already exists
+ cd dist
+ cvs -d:pserver:anonymous@ijbswa.cvs.sourceforge.net:/cvsroot/ijbswa login
+ cvs -z3 -d:pserver:anonymous@ijbswa.cvs.sourceforge.net:/cvsroot/ijbswa export -r v_X_Y_Z current
+
+ Do NOT change a single bit, including, but not limited to version
+ information after export from CVS. This is to make sure that all release
+ packages, and with them, all future bug reports, are based on exactly the
+ same code.
-Wrap each header file with the following syntax to prevent multiple inclusions
-of the file. Of course, replace PROJECT_H with your file name, with "." Changed
-to "_", and make it uppercase.
+ +------------------------------------------------------------------------+
+ | Warning |
+ |------------------------------------------------------------------------|
+ | Every significant release of Privoxy has included at least one package |
+ | that either had incorrect versions of files, missing files, or |
+ | incidental leftovers from a previous build process that gave unknown |
+ | numbers of users headaches to try to figure out what was wrong. |
+ | PLEASE, make sure you are using pristene sources, and are following |
+ | the prescribed process! |
+ +------------------------------------------------------------------------+
-Example:
+ Please find additional instructions for the source tarball and the
+ individual platform dependent binary packages below. And details on the
+ Sourceforge release process below that.
-#ifndef PROJECT_H_INCLUDED
-#define PROJECT_H_INCLUDED
- ...
-#endif /* ndef PROJECT_H_INCLUDED */
+ --------------------------------------------------------------------------
--------------------------------------------------------------------------------
+ 6.3.1. Note on Privoxy Packaging
-6.6.8. Use `extern "C"` when appropriate
+ Please keep these general guidelines in mind when putting together your
+ package. These apply to all platforms!
-Explanation:
+ * Privoxy requires write access to: all *.action files, all logfiles,
+ and the trust file. You will need to determine the best way to do this
+ for your platform.
-If our headers are included from C++, they must declare our functions as
-`extern "C"`. This has no cost in C, but increases the potential re-usability
-of our code.
+ * Please include up to date documentation. At a bare minimum:
-Example:
+ LICENSE (top-level directory)
-#ifdef __cplusplus
-extern "C"
-{
-#endif /* def __cplusplus */
-
-... function definitions here ...
-
-#ifdef __cplusplus
-}
-#endif /* def __cplusplus */
+ README (top-level directory)
--------------------------------------------------------------------------------
+ AUTHORS (top-level directory)
-6.6.9. Where Possible, Use Forward Struct Declaration Instead of Includes
+ man page (top-level directory, Unix-like platforms only)
-Explanation:
+ The User Manual (doc/webserver/user-manual/)
-Useful in headers that include pointers to other struct's. Modifications to
-excess header files may cause needless compiles.
+ FAQ (doc/webserver/faq/)
-Example:
+ Also suggested: Developer Manual (doc/webserver/developer-manual) and
+ ChangeLog (top-level directory). FAQ and the manuals are HTML docs.
+ There are also text versions in doc/text/ which could conceivably also
+ be included.
-/*********************************************************************
- * We're avoiding an include statement here!
- *********************************************************************/
-struct file_list;
-extern file_list *xyz;
+ The documentation has been designed such that the manuals are linked
+ to each other from parallel directories, and should be packaged that
+ way. privoxy-index.html can also be included and can serve as a focal
+ point for docs and other links of interest (and possibly renamed to
+ index.html). This should be one level up from the manuals. There is a
+ link also on this page to an HTMLized version of the man page. To
+ avoid 404 for this, it is in CVS as
+ doc/webserver/man-page/privoxy-man-page.html, and should be included
+ along with the manuals. There is also a css stylesheets that can be
+ included for better presentation: p_doc.css. This should be in the
+ same directory with privoxy-index.html, (i.e. one level up from the
+ manual directories).
-Note: If you declare "file_list xyz;" (without the pointer), then including the
-proper header file is necessary. If you only want to prototype a pointer,
-however, the header file is unnecessary.
+ * user.action and user.filter are designed for local preferences. Make
+ sure these do not get overwritten! config should not be overwritten
+ either. This has especially important configuration data in it. trust
+ should be left in tact as well.
-Status: Use with discretion.
+ * Other configuration files (default.action, default.filter and
+ standard.action) should be installed as the new defaults, but all
+ previously installed configuration files should be preserved as
+ backups. This is just good manners :-) These files are likely to
+ change between releases and contain important new features and bug
+ fixes.
--------------------------------------------------------------------------------
+ * Please check platform specific notes in this doc, if you haven't done
+ "Privoxy" packaging before for other platform specific issues.
+ Conversely, please add any notes that you know are important for your
+ platform (or contact one of the doc maintainers to do this if you
+ can't).
-6.7. General Coding Practices
+ * Packagers should do a "clean" install of their package after building
+ it. So any previous installs should be removed first to ensure the
+ integrity of the newly built package. Then run the package for a while
+ to make sure there are no obvious problems, before uploading.
-6.7.1. Turn on warnings
+ --------------------------------------------------------------------------
-Explanation
+ 6.3.2. Source Tarball
-Compiler warnings are meant to help you find bugs. You should turn on as many
-as possible. With GCC, the switch is "-Wall". Try and fix as many warnings as
-possible.
+ First, make sure that you have freshly exported the right version into an
+ empty directory. (See "Building and releasing packages" above). Then run:
--------------------------------------------------------------------------------
+ cd current
+ autoheader && autoconf && ./configure
-6.7.2. Provide a default case for all switch statements
+ Then do:
-Explanation:
+ make tarball-dist
-What you think is guaranteed is never really guaranteed. The value that you
-don't think you need to check is the one that someday will be passed. So, to
-protect yourself from the unknown, always have a default step in a switch
-statement.
+ To upload the package to Sourceforge, simply issue
-Example:
+ make tarball-upload
-switch( hash_string( cmd ) )
-{
- case hash_actions_file :
- ... code ...
- break;
-
- case hash_confdir :
- ... code ...
- break;
-
- default :
- log_error( ... );
- ... anomaly code goes here ...
- continue; / break; / exit( 1 ); / etc ...
-
-} /* end switch( hash_string( cmd ) ) */
+ Go to the displayed URL and release the file publicly on Sourceforge. For
+ the change log field, use the relevant section of the ChangeLog file.
-Note: If you already have a default condition, you are obviously exempt from
-this point. Of note, most of the WIN32 code calls `DefWindowProc' after the
-switch statement. This API call *should* be included in a default statement.
+ --------------------------------------------------------------------------
-Another Note: This is not so much a readability issue as a robust programming
-issue. The "anomaly code goes here" may be no more than a print to the STDERR
-stream (as in load_config). Or it may really be an ABEND condition.
+ 6.3.3. SuSE, Conectiva or Red Hat RPM
-Status: Programmer discretion is advised.
+ In following text, replace dist with either "rh" for Red Hat or "suse" for
+ SuSE.
--------------------------------------------------------------------------------
+ First, make sure that you have freshly exported the right version into an
+ empty directory. (See "Building and releasing packages" above).
-6.7.3. Try to avoid falling through cases in a switch statement.
+ As the only exception to not changing anything after export from CVS, now
+ examine the file privoxy-dist.spec and make sure that the version
+ information and the RPM release number are correct. The RPM release
+ numbers for each version start at one. Hence it must be reset to one if
+ this is the first RPM for dist which is built from version X.Y.Z. Check
+ the file list if unsure. Else, it must be set to the highest already
+ available RPM release number for that version plus one.
-Explanation:
+ Then run:
-In general, you will want to have a 'break' statement within each 'case' of a
-switch statement. This allows for the code to be more readable and
-understandable, and furthermore can prevent unwanted surprises if someone else
-later gets creative and moves the code around.
+ cd current
+ autoheader && autoconf && ./configure
-The language allows you to plan the fall through from one case statement to
-another simply by omitting the break statement within the case statement. This
-feature does have benefits, but should only be used in rare cases. In general,
-use a break statement for each case statement.
+ Then do
-If you choose to allow fall through, you should comment both the fact of the
-fall through and reason why you felt it was necessary.
+ make dist-dist
--------------------------------------------------------------------------------
+ To upload the package to Sourceforge, simply issue
-6.7.4. Use 'long' or 'short' Instead of 'int'
+ make dist-upload rpm_packagerev
-Explanation:
+ where rpm_packagerev is the RPM release number as determined above. Go to
+ the displayed URL and release the file publicly on Sourceforge. Use the
+ release notes and change log from the source tarball package.
-On 32-bit platforms, int usually has the range of long. On 16-bit platforms,
-int has the range of short.
+ --------------------------------------------------------------------------
-Status: open-to-debate. In the case of most FSF projects (including X/
-GNU-Emacs), there are typedefs to int4, int8, int16, (or equivalence ... I
-forget the exact typedefs now). Should we add these to IJB now that we have a
-"configure" script?
+ 6.3.4. OS/2
--------------------------------------------------------------------------------
+ First, make sure that you have freshly exported the right version into an
+ empty directory. (See "Building and releasing packages" above). Then get
+ the OS/2 Setup module:
-6.7.5. Don't mix size_t and other types
+ cvs -z3 -d:pserver:anonymous@ijbswa.cvs.sourceforge.net:/cvsroot/ijbswa co os2setup
-Explanation:
+ You will need a mix of development tools. The main compilation takes place
+ with IBM Visual Age C++. Some ancillary work takes place with GNU tools,
+ available from various sources like hobbes.nmsu.edu. Specificially, you
+ will need autoheader, autoconf and sh tools. The packaging takes place
+ with WarpIN, available from various sources, including its home page:
+ xworkplace.
-The type of size_t varies across platforms. Do not make assumptions about
-whether it is signed or unsigned, or about how long it is. Do not compare a
-size_t against another variable of a different type (or even against a
-constant) without casting one of the values. Try to avoid using size_t if you
-can.
+ Change directory to the os2setup directory. Edit the os2build.cmd file to
+ set the final executable filename. For example,
--------------------------------------------------------------------------------
+ installExeName='privoxyos2_setup_X.Y.Z.exe'
-6.7.6. Declare each variable and struct on its own line.
+ Next, edit the IJB.wis file so the release number matches in the PACKAGEID
+ section:
-Explanation:
+ PACKAGEID="Privoxy Team\Privoxy\Privoxy Package\X\Y\Z"
-It can be tempting to declare a series of variables all on one line. Don't.
+ You're now ready to build. Run:
-Example:
+ os2build
-long a = 0;
-long b = 0;
-long c = 0;
+ You will find the WarpIN-installable executable in the ./files directory.
+ Upload this anonymously to uploads.sourceforge.net/incoming, create a
+ release for it, and you're done. Use the release notes and Change Log from
+ the source tarball package.
-Instead of:
+ --------------------------------------------------------------------------
-long a, b, c;
+ 6.3.5. Solaris
-Explanation: - there is more room for comments on the individual variables -
-easier to add new variables without messing up the original ones - when
-searching on a variable to find its type, there is less clutter to "visually"
-eliminate
+ Login to Sourceforge's compilefarm via ssh:
-Exceptions: when you want to declare a bunch of loop variables or other trivial
-variables; feel free to declare them on 1 line. You should, although, provide a
-good comment on their functions.
+ ssh cf.sourceforge.net
-Status: developer-discretion.
+ Choose the right operating system (not the Debian one). When logged in,
+ make sure that you have freshly exported the right version into an empty
+ directory. (See "Building and releasing packages" above). Then run:
--------------------------------------------------------------------------------
+ cd current
+ autoheader && autoconf && ./configure
-6.7.7. Use malloc/zalloc sparingly
+ Then run
-Explanation:
+ gmake solaris-dist
-Create a local struct (on the stack) if the variable will live and die within
-the context of one function call.
+ which creates a gzip'ed tar archive. Sadly, you cannot use make
+ solaris-upload on the Sourceforge machine (no ncftpput). You now have to
+ manually upload the archive to Sourceforge's ftp server and release the
+ file publicly. Use the release notes and Change Log from the source
+ tarball package.
-Only "malloc" a struct (on the heap) if the variable's life will extend beyond
-the context of one function call.
+ --------------------------------------------------------------------------
-Example:
+ 6.3.6. Windows
-If a function creates a struct and stores a pointer to it in a
-list, then it should definitely be allocated via `malloc'.
+ You should ensure you have the latest version of Cygwin (from
+ http://www.cygwin.com/). Run the following commands from within a Cygwin
+ bash shell.
--------------------------------------------------------------------------------
+ First, make sure that you have freshly exported the right version into an
+ empty directory. (See "Building and releasing packages" above). Then get
+ the Windows setup module:
-6.7.8. The Programmer Who Uses 'malloc' is Responsible for Ensuring 'free'
+ cvs -z3 -d:pserver:anonymous@ijbswa.cvs.sourceforge.net:/cvsroot/ijbswa co winsetup
-Explanation:
+ Then you can build the package. This is fully automated, and is controlled
+ by winsetup/GNUmakefile. All you need to do is:
-If you have to "malloc" an instance, you are responsible for insuring that the
-instance is `free'd, even if the deallocation event falls within some other
-programmer's code. You are also responsible for ensuring that deletion is
-timely (i.e. not too soon, not too late). This is known as "low-coupling" and
-is a "good thing (tm)". You may need to offer a free/unload/destuctor type
-function to accommodate this.
+ cd winsetup
+ make
-Example:
+ Now you can manually rename privoxy_setup.exe to privoxy_setup_X_Y_Z.exe,
+ and upload it to SourceForge. When releasing the package on SourceForge,
+ use the release notes and Change Log from the source tarball package.
-int load_re_filterfile( struct client_state *csp ) { ... }
-static void unload_re_filterfile( void *f ) { ... }
+ --------------------------------------------------------------------------
-Exceptions:
+ 6.3.7. Debian
-The developer cannot be expected to provide `free'ing functions for C run-time
-library functions ... such as `strdup'.
+ First, make sure that you have freshly exported the right version into an
+ empty directory. (See "Building and releasing packages" above). Then add a
+ log entry to debian/changelog, if it is not already there, for example by
+ running:
-Status: developer-discretion. The "main" use of this standard is for allocating
-and freeing data structures (complex or nested).
+ debchange -v 3.0.8-stable-1 "New upstream version"
--------------------------------------------------------------------------------
+ Then, run:
-6.7.9. Add loaders to the `file_list' structure and in order
+ dpkg-buildpackage -rfakeroot -us -uc -b
-Explanation:
+ This will create ../privoxy_3.0.8-stable-1_i386.deb which can be uploaded.
+ To upload the package to Sourceforge, simply issue
-I have ordered all of the "blocker" file code to be in alpha order. It is
-easier to add/read new blockers when you expect a certain order.
+ make debian-upload
-Note: It may appear that the alpha order is broken in places by POPUP tests
-coming before PCRS tests. But since POPUPs can also be referred to as
-KILLPOPUPs, it is clear that it should come first.
+ --------------------------------------------------------------------------
--------------------------------------------------------------------------------
+ 6.3.8. Mac OSX
-6.7.10. "Uncertain" new code and/or changes to existing code, use FIXME
+ First, make sure that you have freshly exported the right version into an
+ empty directory. (See "Building and releasing packages" above). Then get
+ the Mac OSX setup module:
-Explanation:
+ cvs -z3 -d:pserver:anonymous@ijbswa.cvs.sourceforge.net:/cvsroot/ijbswa co osxsetup
-If you have enough confidence in new code or confidence in your changes, but
-are not *quite* sure of the repercussions, add this:
+ Then run:
-/* FIXME: this code has a logic error on platform XYZ, * attempting to fix */ #
-ifdef PLATFORM ...changed code here... #endif
+ cd osxsetup
+ build
-or:
+ This will run autoheader, autoconf and configure as well as make. Finally,
+ it will copy over the necessary files to the ./osxsetup/files directory
+ for further processing by PackageMaker.
-/* FIXME: I think the original author really meant this... */ ...changed code
-here...
-
-or:
-
-/* FIXME: new code that *may* break something else... */ ...new code here...
-
-Note: If you make it clear that this may or may not be a "good thing (tm)", it
-will be easier to identify and include in the project (or conversely exclude
-from the project).
-
--------------------------------------------------------------------------------
-
-6.8. Addendum: Template for files and function comment blocks:
-
-Example for file comments:
-
-const char FILENAME_rcs[] = "$Id: developer-manual.sgml,v 1.35 2002/04/17 15:16:15 oes Exp $";
-/*********************************************************************
- *
- * File : $Source$
- *
- * Purpose : (Fill me in with a good description!)
- *
- * Copyright : Written by and Copyright (C) 2001 the SourceForge
- * Privoxy team. http://www.privoxy.org/
- *
- * Based on the Internet Junkbuster originally written
- * by and Copyright (C) 1997 Anonymous Coders and
- * Junkbusters Corporation. http://www.junkbusters.com
- *
- * This program is free software; you can redistribute it
- * and/or modify it under the terms of the GNU General
- * Public License as published by the Free Software
- * Foundation; either version 2 of the License, or (at
- * your option) any later version.
- *
- * This program is distributed in the hope that it will
- * be useful, but WITHOUT ANY WARRANTY; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A
- * PARTICULAR PURPOSE. See the GNU General Public
- * License for more details.
- *
- * The GNU General Public License should be included with
- * this file. If not, you can view it at
- * http://www.gnu.org/copyleft/gpl.html
- * or write to the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- * Revisions :
- * $Log$
- *
- *********************************************************************/
-
-
-#include "config.h"
-
- ...necessary include files for us to do our work...
-
-const char FILENAME_h_rcs[] = FILENAME_H_VERSION;
-
-Note: This declares the rcs variables that should be added to the
-"show-proxy-args" page. If this is a brand new creation by you, you are free to
-change the "Copyright" section to represent the rights you wish to maintain.
-
-Note: The formfeed character that is present right after the comment flower box
-is handy for (X|GNU)Emacs users to skip the verbiage and get to the heart of
-the code (via `forward-page' and `backward-page'). Please include it if you
-can.
-
-Example for file header comments:
-
-#ifndef _FILENAME_H
-#define _FILENAME_H
-#define FILENAME_H_VERSION "$Id: developer-manual.sgml,v 1.35 2002/04/17 15:16:15 oes Exp $"
-/*********************************************************************
- *
- * File : $Source$
- *
- * Purpose : (Fill me in with a good description!)
- *
- * Copyright : Written by and Copyright (C) 2001 the SourceForge
- * Privoxy team. http://www.privoxy.org/
- *
- * Based on the Internet Junkbuster originally written
- * by and Copyright (C) 1997 Anonymous Coders and
- * Junkbusters Corporation. http://www.junkbusters.com
- *
- * This program is free software; you can redistribute it
- * and/or modify it under the terms of the GNU General
- * Public License as published by the Free Software
- * Foundation; either version 2 of the License, or (at
- * your option) any later version.
- *
- * This program is distributed in the hope that it will
- * be useful, but WITHOUT ANY WARRANTY; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A
- * PARTICULAR PURPOSE. See the GNU General Public
- * License for more details.
- *
- * The GNU General Public License should be included with
- * this file. If not, you can view it at
- * http://www.gnu.org/copyleft/gpl.html
- * or write to the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- * Revisions :
- * $Log$
- *
- *********************************************************************/
-
-
-#include "project.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
- ... function headers here ...
-
-
-/* Revision control strings from this header and associated .c file */
-extern const char FILENAME_rcs[];
-extern const char FILENAME_h_rcs[];
-
-
-#ifdef __cplusplus
-} /* extern "C" */
-#endif
-
-#endif /* ndef _FILENAME_H */
-
-/*
- Local Variables:
- tab-width: 3
- end:
-*/
-
-Example for function comments:
-
-/*********************************************************************
- *
- * Function : FUNCTION_NAME
- *
- * Description : (Fill me in with a good description!)
- *
- * parameters :
- * 1 : param1 = pointer to an important thing
- * 2 : x = pointer to something else
- *
- * Returns : 0 => Ok, everything else is an error.
- *
- *********************************************************************/
-int FUNCTION_NAME( void *param1, const char *x )
-{
- ...
- return( 0 );
-
-}
-
-Note: If we all follow this practice, we should be able to parse our code to
-create a "self-documenting" web page.
-
--------------------------------------------------------------------------------
-
-7. Testing Guidelines
-
-To be filled.
-
--------------------------------------------------------------------------------
-
-7.1. Testplan for releases
-
-Explain release numbers. major, minor. developer releases. etc.
-
- 1. Remove any existing rpm with rpm -e
-
- 2. Remove any file that was left over. This includes (but is not limited to)
-
- + /var/log/privoxy
-
- + /etc/privoxy
-
- + /usr/sbin/privoxy
-
- + /etc/init.d/privoxy
-
- + /usr/doc/privoxy*
-
- 3. Install the rpm. Any error messages?
-
- 4. start,stop,status Privoxy with the specific script (e.g. /etc/rc.d/init/
- privoxy stop). Reboot your machine. Does autostart work?
-
- 5. Start browsing. Does Privoxy work? Logfile written?
-
- 6. Remove the rpm. Any error messages? All files removed?
-
--------------------------------------------------------------------------------
-
-7.2. Test reports
-
-Please submit test reports only with the test form at sourceforge. Three simple
-steps:
-
- * Select category: the distribution you test on.
-
- * Select group: the version of Privoxy that we are about to release.
-
- * Fill the Summary and Detailed Description with something intelligent (keep
- it short and precise).
-
-Do not mail to the mailinglist (we cannot keep track on issues there).
-
--------------------------------------------------------------------------------
-
-8. Releasing a New Version
-
-When we release versions of Privoxy, our work leaves our cozy secret lab and
-has to work in the cold RealWorld[tm]. Once it is released, there is no way to
-call it back, so it is very important that great care is taken to ensure that
-everything runs fine, and not to introduce problems in the very last minute.
-
-So when releasing a new version, please adhere exactly to the procedure
-outlined in this chapter.
-
-The following programs are required to follow this process: ncftpput (ncftp),
-scp, ssh (ssh), gmake (GNU's version of make), autoconf, cvs.
-
-In the following text, replace X, Y and Z with the actual version number (X =
-major, Y = minor, Z = point):
-
--------------------------------------------------------------------------------
-
-8.1. Before the Release
-
-The following must be done by one of the developers prior to each new release.
-
- * Make sure that everybody who has worked on the code in the last couple of
- days has had a chance to yell "no!" in case they have pending changes/fixes
- in their pipelines.
-
- * Increment the version number and increase or reset the RPM release number
- in configure.in as appropriate.
-
- * If the default actionsfile has changed since last release, bump up its
- version info in this line:
-
- {+add-header{X-Actions-File-Version: A.B} -filter -no-popups}
-
-
- Then change the version info in doc/webserver/actions/index.php, line:
- '$required_actions_file_version = "A.B";'
-
- * If the HTML documentation is not in sync with the SGML sources you need to
- regenerate it. (If in doubt, just do it.) See the Section "Updating the
- webserver" in this manual for details.
-
- * Commit all files that were changed in the above steps!
-
- * Tag all files in CVS with the version number with "cvs tag v_X_Y_Z". Don't
- use vX_Y_Z, ver_X_Y_Z, v_X.Y.Z (won't work) etc.
-
--------------------------------------------------------------------------------
+ Bring up PackageMaker with the PrivoxyPackage.pmsp definition file, modify
+ the package name to match the release, and hit the "Create package"
+ button. If you specify ./Privoxy.pkg as the output package name, you can
+ then create the distributable zip file with the command:
-8.2. Building and Releasing the Packages
+ zip -r privoxyosx_setup_x.y.z.zip Privoxy.pkg
-Now the individual packages can be built and released. Note that for GPL
-reasons the first package to be released is always the source tarball.
+ You can then upload privoxyosx_setup_x.y.z.zip anonymously to
+ uploads.sourceforge.net/incoming, create a release for it, and you're
+ done. Use the release notes and Change Log from the source tarball
+ package.
-For all types of packages, including the source tarball, you must make sure
-that you build from clean sources by exporting the right version from CVS into
-an empty directory:.
+ --------------------------------------------------------------------------
- mkdir dist # delete or choose different name if it already exists
- cd dist
- cvs -d:pserver:anonymous@cvs.ijbswa.sourceforge.net:/cvsroot/ijbswa login
- cvs -z3 -d:pserver:anonymous@cvs.ijbswa.sourceforge.net:/cvsroot/ijbswa export -r v_X_Y_Z current
-
+ 6.3.9. FreeBSD
-Do NOT change a single bit, including, but not limited to version information
-after export from CVS. This is to make sure that all release packages, and with
-them, all future bug reports, are based on exactly the same code.
+ Login to Sourceforge's compile-farm via ssh:
-Please find additional instructions for the source tarball and the individual
-platform dependent binary packages below.
+ ssh cf.sourceforge.net
--------------------------------------------------------------------------------
+ Choose the right operating system. When logged in, make sure that you have
+ freshly exported the right version into an empty directory. (See "Building
+ and releasing packages" above). Then run:
-8.2.1. Source Tarball
+ cd current
+ autoheader && autoconf && ./configure
-First, make sure that you have freshly exported the right version into an empty
-directory. (See "Building and releasing packages" above). Then run:
+ Then run:
- cd current
- autoheader && autoconf && ./configure
-
+ gmake freebsd-dist
-Then do:
+ which creates a gzip'ed tar archive. Sadly, you cannot use make
+ freebsd-upload on the Sourceforge machine (no ncftpput). You now have to
+ manually upload the archive to Sourceforge's ftp server and release the
+ file publicly. Use the release notes and Change Log from the source
+ tarball package.
- make tarball-dist
-
+ --------------------------------------------------------------------------
-To upload the package to Sourceforge, simply issue
+ 6.3.10. HP-UX 11
- make tarball-upload
-
+ First, make sure that you have freshly exported the right version into an
+ empty directory. (See "Building and releasing packages" above). Then run:
-Go to the displayed URL and release the file publicly on Sourceforge. For the
-change log field, use the relevant section of the ChangeLog file.
+ cd current
+ autoheader && autoconf && ./configure
--------------------------------------------------------------------------------
+ Then do FIXME.
-8.2.2. SuSE or Red Hat
+ --------------------------------------------------------------------------
-First, make sure that you have freshly exported the right version into an empty
-directory. (See "Building and releasing packages" above). Then run:
+ 6.3.11. Amiga OS
- cd current
- autoheader && autoconf && ./configure
-
+ First, make sure that you have freshly exported the right version into an
+ empty directory. (See "Building and releasing packages" above). Then run:
-Then do
+ cd current
+ autoheader && autoconf && ./configure
- make suse-dist (or make redhat-dist)
-
+ Then do FIXME.
-To upload the package to Sourceforge, simply issue
+ --------------------------------------------------------------------------
- make suse-upload (or make redhat-upload)
-
+ 6.3.12. AIX
-Go to the displayed URL and release the file publicly on Sourceforge. Use the
-release notes and çhange log from the source tarball package.
+ Login to Sourceforge's compilefarm via ssh:
--------------------------------------------------------------------------------
+ ssh cf.sourceforge.net
-8.2.3. OS/2
+ Choose the right operating system. When logged in, make sure that you have
+ freshly exported the right version into an empty directory. (See "Building
+ and releasing packages" above). Then run:
-First, make sure that you have freshly exported the right version into an empty
-directory. (See "Building and releasing packages" above). Then get the OS/2
-Setup module:
+ cd current
+ autoheader && autoconf && ./configure
- cvs -z3 -d:pserver:anonymous@cvs.ijbswa.sourceforge.net:/cvsroot/ijbswa co os2setup
-
+ Then run:
-You will need a mix of development tools. The main compilation takes place with
-IBM Visual Age C++. Some ancillary work takes place with GNU tools, available
-from various sources like hobbes.nmsu.edu. Specificially, you will need
-autoheader, autoconf and sh tools. The packaging takes place with WarpIN,
-available from various sources, including its home page: xworkplace.
+ make aix-dist
-Change directory to the os2setup directory. Edit the os2build.cmd file to set
-the final executable filename. For example,
+ which creates a gzip'ed tar archive. Sadly, you cannot use make aix-upload
+ on the Sourceforge machine (no ncftpput). You now have to manually upload
+ the archive to Sourceforge's ftp server and release the file publicly. Use
+ the release notes and Change Log from the source tarball package.
- installExeName='privoxyos2_setup_X.Y.Z.exe'
-
+ --------------------------------------------------------------------------
-Next, edit the IJB.wis file so the release number matches in the PACKAGEID
-section:
+ 6.4. Uploading and Releasing Your Package
- PACKAGEID="Privoxy Team\Privoxy\Privoxy Package\X\Y\Z"
-
+ After the package is ready, it is time to upload it to SourceForge, and go
+ through the release steps. The upload is done via FTP:
-You're now ready to build. Run:
+ * Upload to: ftp://upload.sourceforge.net/incoming
- os2build
-
+ * user: anonymous
-You will find the WarpIN-installable executable in the ./files directory.
-Upload this anonymously to uploads.sourceforge.net/incoming, create a release
-for it, and you're done. Use the release notes and Change Log from the source
-tarball package.
+ * password: ijbswa-developers@lists.sourceforge.net
--------------------------------------------------------------------------------
+ Or use the make targets as described above.
-8.2.4. Solaris
+ Once this done go to
+ http://sourceforge.net/project/admin/editpackages.php?group_id=11118,
+ making sure you are logged in. Find your target platform in the second
+ column, and click Add Release. You will then need to create a new release
+ for your package, using the format of $VERSION ($CODE_STATUS), e.g. 3.0.8
+ (beta).
-Login to Sourceforge's compilefarm via ssh:
+ Now just follow the prompts. Be sure to add any appropriate Release notes.
+ You should see your freshly uploaded packages in "Step 2. Add Files To
+ This Release". Check the appropriate box(es). Remember at each step to hit
+ the "Refresh/Submit" buttons! You should now see your file(s) listed in
+ Step 3. Fill out the forms with the appropriate information for your
+ platform, being sure to hit "Update" for each file. If anyone is
+ monitoring your platform, check the "email" box at the very bottom to
+ notify them of the new package. This should do it!
- ssh cf.sourceforge.net
-
+ If you have made errors, or need to make changes, you can go through
+ essentially the same steps, but select Edit Release, instead of Add
+ Release.
-Choose the right operating system (not the Debian one). When logged in, make
-sure that you have freshly exported the right version into an empty directory.
-(See "Building and releasing packages" above). Then run:
+ --------------------------------------------------------------------------
- cd current
- autoheader && autoconf && ./configure
-
+ 6.5. After the Release
-Then run
+ When all (or: most of the) packages have been uploaded and made available,
+ send an email to the announce mailing list, Subject: "Version X.Y.Z
+ available for download". Be sure to include the download location, the
+ release notes and the Changelog. Also, post an updated News item on the
+ project page Sourceforge, and update the Home page and docs linked from
+ the Home page (see below). Other news sites and release oriented sites,
+ such as Freshmeat, should also be notified.
- gmake solaris-dist
-
+ --------------------------------------------------------------------------
-which creates a gzip'ed tar archive. Sadly, you cannot use make solaris-upload
-on the Sourceforge machine (no ncftpput). You now have to manually upload the
-archive to Sourceforge's ftp server and release the file publicly. Use the
-release notes and Change Log from the source tarball package.
+7. Update the Webserver
--------------------------------------------------------------------------------
+ The webserver should be updated at least with each stable release. When
+ updating, please follow these steps to make sure that no broken links,
+ inconsistent contents or permission problems will occur (as it has many
+ times in the past!):
-8.2.5. Windows
+ If you have changed anything in the stable-branch documentation source
+ SGML files, do:
-You should ensure you have the latest version of Cygwin (from http://
-www.cygwin.com/). Run the following commands from within a Cygwin bash shell.
+ make dok dok-pdf # (or 'make redhat-dok dok-pdf' if 'make dok' doesn't work for you)
-First, make sure that you have freshly exported the right version into an empty
-directory. (See "Building and releasing packages" above). Then get the Windows
-setup module:
+ That will generate doc/webserver/user-manual,
+ doc/webserver/developer-manual, doc/webserver/faq, doc/pdf/*.pdf and
+ doc/webserver/index.html automatically.
- cvs -z3 -d:pserver:anonymous@cvs.ijbswa.sourceforge.net:/cvsroot/ijbswa co winsetup
-
+ If you changed the manual page sources, generate
+ doc/webserver/man-page/privoxy-man-page.html by running "make man". (This
+ is a separate target due to dependencies on some obscure perl scripts [now
+ in CVS, but not well tested]. See comments in GNUmakefile.)
-Then you can build the package. This is fully automated, and is controlled by
-winsetup/GNUmakefile. All you need to do is:
+ If you want to add new files to the webserver, create them locally in the
+ doc/webserver/* directory (or create new directories under doc/webserver).
- cd winsetup
- make
-
+ Next, commit any changes from the above steps to CVS. All set? If these
+ are docs in the stable branch, then do:
-Now you can manually rename privoxy_setup.exe to privoxy_setup_X_Y_Z.exe, and
-upload it to SourceForge. When releasing the package on SourceForge, use the
-release notes and Change Log from the source tarball package.
+ make webserver
--------------------------------------------------------------------------------
+ This will do the upload to the webserver (www.privoxy.org) and ensure all
+ files and directories there are group writable.
-8.2.6. Debian
+ Please do NOT use any other means of transferring files to the webserver
+ to avoid permission problems. Also, please do not upload docs from
+ development branches or versions. The publicly posted docs should be in
+ sync with the last official release.
-First, make sure that you have freshly exported the right version into an empty
-directory. (See "Building and releasing packages" above). Then, run:
+ --------------------------------------------------------------------------
- cd current
- autoheader && autoconf && ./configure
-
+8. Contacting the developers, Bug Reporting and Feature Requests
-Then do FIXME.
+ We value your feedback. In fact, we rely on it to improve Privoxy and its
+ configuration. However, please note the following hints, so we can provide
+ you with the best support:
--------------------------------------------------------------------------------
+ --------------------------------------------------------------------------
-8.2.7. Mac OSX
+ 8.1. Get Support
-First, make sure that you have freshly exported the right version into an empty
-directory. (See "Building and releasing packages" above). Then get the Mac OSX
-setup module:
+ For casual users, our support forum at SourceForge is probably best
+ suited: http://sourceforge.net/tracker/?group_id=11118&atid=211118
- cvs -z3 -d:pserver:anonymous@cvs.ijbswa.sourceforge.net:/cvsroot/ijbswa co osxsetup
-
+ All users are of course welcome to discuss their issues on the users
+ mailing list, where the developers also hang around.
-Then run:
+ Note that the Privoxy mailing lists are moderated. Posts from unsubscribed
+ addresses have to be accepted manually by a moderator. This may cause a
+ delay of several days and if you use a subject that doesn't clearly
+ mention Privoxy or one of its features, your message may be accidentally
+ discarded as spam.
- cd osxsetup
- build
-
+ If you aren't subscribed, you should therefore spend a few seconds to come
+ up with a proper subject. Additionally you should make it clear that you
+ want to get CC'd. Otherwise some responses will be directed to the mailing
+ list only, and you won't see them.
-This will run autoheader, autoconf and configure as well as make. Finally, it
-will copy over the necessary files to the ./osxsetup/files directory for
-further processing by PackageMaker.
+ --------------------------------------------------------------------------
-Bring up PackageMaker with the PrivoxyPackage.pmsp definition file, modify the
-package name to match the release, and hit the "Create package" button. If you
-specify ./Privoxy.pkg as the output package name, you can then create the
-distributable zip file with the command:
+ 8.2. Reporting Problems
-zip -r privoxyosx_setup_x.y.z.zip Privoxy.pkg
-
+ "Problems" for our purposes, come in two forms:
-You can then upload privoxyosx_setup_x.y.z.zip anonymously to
-uploads.sourceforge.net/incoming, create a release for it, and you're done. Use
-the release notes and Change Log from the source tarball package.
+ * Configuration issues, such as ads that slip through, or sites that
+ don't function properly due to one Privoxy "action" or another being
+ turned "on".
--------------------------------------------------------------------------------
+ * "Bugs" in the programming code that makes up Privoxy, such as that
+ might cause a crash.
-8.2.8. FreeBSD
+ --------------------------------------------------------------------------
-Login to Sourceforge's compilefarm via ssh:
+ 8.2.1. Reporting Ads or Other Configuration Problems
- ssh cf.sourceforge.net
-
+ Please send feedback on ads that slipped through, innocent images that
+ were blocked, sites that don't work properly, and other configuration
+ related problem of default.action file, to
+ http://sourceforge.net/tracker/?group_id=11118&atid=460288, the Actions
+ File Tracker.
-Choose the right operating system. When logged in, make sure that you have
-freshly exported the right version into an empty directory. (See "Building and
-releasing packages" above). Then run:
+ New, improved default.action files may occasionally be made available
+ based on your feedback. These will be announced on the ijbswa-announce
+ list and available from our the files section of our project page.
- cd current
- autoheader && autoconf && ./configure
-
+ --------------------------------------------------------------------------
-Then run:
+ 8.2.2. Reporting Bugs
- gmake freebsd-dist
-
+ Please report all bugs through our bug tracker:
+ http://sourceforge.net/tracker/?group_id=11118&atid=111118.
-which creates a gzip'ed tar archive. Sadly, you cannot use make freebsd-upload
-on the Sourceforge machine (no ncftpput). You now have to manually upload the
-archive to Sourceforge's ftp server and release the file publicly. Use the
-release notes and Change Log from the source tarball package.
+ Before doing so, please make sure that the bug has not already been
+ submitted and observe the additional hints at the top of the submit form.
+ If already submitted, please feel free to add any info to the original
+ report that might help to solve the issue.
--------------------------------------------------------------------------------
+ Please try to verify that it is a Privoxy bug, and not a browser or site
+ bug or documented behaviour that just happens to be different than what
+ you expected. If unsure, try toggling off Privoxy, and see if the problem
+ persists.
-8.2.9. HP-UX 11
+ If you are using your own custom configuration, please try the stock
+ configs to see if the problem is configuration related. If you're having
+ problems with a feature that is disabled by default, please ask around on
+ the mailing list if others can reproduce the problem.
-First, make sure that you have freshly exported the right version into an empty
-directory. (See "Building and releasing packages" above). Then run:
+ If you aren't using the latest Privoxy version, the bug may have been
+ found and fixed in the meantime. We would appreciate if you could take the
+ time to upgrade to the latest version (or even the latest CVS snapshot)
+ and verify that your bug still exists.
- cd current
- autoheader && autoconf && ./configure
-
+ Please be sure to provide the following information:
-Then do FIXME.
+ * The exact Privoxy version you are using (if you got the source from
+ CVS, please also provide the source code revisions as shown in
+ http://config.privoxy.org/show-version).
--------------------------------------------------------------------------------
+ * The operating system and versions you run Privoxy on, (e.g. Windows XP
+ SP2), if you are using a Unix flavor, sending the output of "uname -a"
+ should do, in case of GNU/Linux, please also name the distribution.
-8.2.10. Amiga OS
+ * The name, platform, and version of the browser you were using (e.g.
+ Internet Explorer v5.5 for Mac).
-First, make sure that you have freshly exported the right version into an empty
-directory. (See "Building and releasing packages" above). Then run:
+ * The URL where the problem occurred, or some way for us to duplicate
+ the problem (e.g. http://somesite.example.com/?somethingelse=123).
- cd current
- autoheader && autoconf && ./configure
-
+ * Whether your version of Privoxy is one supplied by the Privoxy
+ developers via SourceForge, or if you got your copy somewhere else.
-Then do FIXME.
+ * Whether you are using Privoxy in tandem with another proxy such as
+ Tor. If so, please temporary disable the other proxy to see if the
+ symptoms change.
--------------------------------------------------------------------------------
+ * Whether you are using a personal firewall product. If so, does Privoxy
+ work without it?
-8.2.11. AIX
+ * Any other pertinent information to help identify the problem such as
+ config or log file excerpts (yes, you should have log file entries for
+ each action taken).
-Login to Sourceforge's compilefarm via ssh:
+ You don't have to tell us your actual name when filing a problem report,
+ but please use a nickname so we can differentiate between your messages
+ and the ones entered by other "anonymous" users that may respond to your
+ request if they have the same problem or already found a solution.
- ssh cf.sourceforge.net
-
+ Please also check the status of your request a few days after submitting
+ it, as we may request additional information. If you use a SF id, you
+ should automatically get a mail when someone responds to your request.
-Choose the right operating system. When logged in, make sure that you have
-freshly exported the right version into an empty directory. (See "Building and
-releasing packages" above). Then run:
+ The appendix of the Privoxy User Manual also has helpful information on
+ understanding actions, and action debugging.
- cd current
- autoheader && autoconf && ./configure
-
+ --------------------------------------------------------------------------
-Then run:
+ 8.3. Request New Features
- make aix-dist
-
+ You are welcome to submit ideas on new features or other proposals for
+ improvement through our feature request tracker at
+ http://sourceforge.net/tracker/?atid=361118&group_id=11118.
-which creates a gzip'ed tar archive. Sadly, you cannot use make aix-upload on
-the Sourceforge machine (no ncftpput). You now have to manually upload the
-archive to Sourceforge's ftp server and release the file publicly. Use the
-release notes and Change Log from the source tarball package.
+ --------------------------------------------------------------------------
--------------------------------------------------------------------------------
+ 8.4. Other
-8.3. After the Release
+ For any other issues, feel free to use the mailing lists. Technically
+ interested users and people who wish to contribute to the project are also
+ welcome on the developers list! You can find an overview of all
+ Privoxy-related mailing lists, including list archives, at:
+ http://sourceforge.net/mail/?group_id=11118.
-When all (or: most of the) packages have been uploaded and made available, send
-an email to the announce mailing list, Subject: "Version X.Y.Z available for
-download". Be sure to include the download location, the release notes and the
-change log.
+ --------------------------------------------------------------------------
--------------------------------------------------------------------------------
+9. Privoxy Copyright, License and History
-9. Update the Webserver
+ Copyright (c) 2001-2008 by Privoxy Developers
+ <ijbswa-developers@lists.sourceforge.net>
-When updating the webserver, please follow these steps to make sure that no
-broken links, incosistent contents or permission problems will occur:
+ Some source code is based on code Copyright (c) 1997 by Anonymous Coders
+ and Junkbusters, Inc. and licensed under the GNU General Public License.
-If you have changed anything in the documentation source SGML files, do:
+ --------------------------------------------------------------------------
- make dok # (or make redkat-dok if make dok doesn't work for you)
-
+ 9.1. License
-That will generate doc/webserver/user-manual, doc/webserver/developer-manual,
-doc/webserver/faq and doc/webserver/index.html automatically.
+ Privoxy is free software; you can redistribute it and/or modify it under
+ the terms of the GNU General Public License, version 2, as published by
+ the Free Software Foundation.
-If you changed the manual page source, generate doc/webserver/man-page/
-privoxy-man-page.html by running "make man". (This is a separate target due to
-dependencies on some obscure perl scripts. See comments in GNUmakefile.)
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ for more details, which is available from the Free Software Foundation,
+ Inc, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
-If you want to add new files to the webserver, create them locally in the doc/
-webserver/* directory (or create new directories under doc/webserver).
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the
-Next, commit any changes from the above steps to CVS. All set? Then do
+ Free Software
+ Foundation, Inc. 51 Franklin Street, Fifth Floor
+ Boston, MA 02110-1301
+ USA
- make webserver
-
+ --------------------------------------------------------------------------
-This will do the upload to the webserver (www.privoxy.org) and ensure all files
-and directories there are group writable.
+ 9.2. History
-Please do NOT use any other means of transferring files to the webserver to
-avoid permission problems.
+ A long time ago, there was the Internet Junkbuster, by Anonymous Coders
+ and Junkbusters Corporation. This saved many users a lot of pain in the
+ early days of web advertising and user tracking.
--------------------------------------------------------------------------------
+ But the web, its protocols and standards, and with it, the techniques for
+ forcing ads on users, give up autonomy over their browsing, and for
+ tracking them, keeps evolving. Unfortunately, the Internet Junkbuster did
+ not. Version 2.0.2, published in 1998, was (and is) the last official
+ release available from Junkbusters Corporation. Fortunately, it had been
+ released under the GNU GPL, which allowed further development by others.
-10. Contacting the developers, Bug Reporting and Feature Requests
+ So Stefan Waldherr started maintaining an improved version of the
+ software, to which eventually a number of people contributed patches. It
+ could already replace banners with a transparent image, and had a first
+ version of pop-up killing, but it was still very closely based on the
+ original, with all its limitations, such as the lack of HTTP/1.1 support,
+ flexible per-site configuration, or content modification. The last release
+ from this effort was version 2.0.2-10, published in 2000.
-We value your feedback. However, to provide you with the best support, please
-note:
+ Then, some developers picked up the thread, and started turning the
+ software inside out, upside down, and then reassembled it, adding many new
+ features along the way.
- * Use the Sourceforge Support Forum to get help:
-
- http://sourceforge.net/tracker/?group_id=11118&atid=211118
-
-
- * Submit bugs only through our Sourceforge Bug Forum:
-
- http://sourceforge.net/tracker/?group_id=11118&atid=111118.
-
-
- Make sure that the bug has not already been submitted. Please try to verify
- that it is a Privoxy bug, and not a browser or site bug first. If you are
- using your own custom configuration, please try the stock configs to see if
- the problem is a configuration related bug. And if not using the latest
- development snapshot, please try the latest one. Or even better, CVS
- sources. Please be sure to include the Privoxy/Junkbuster version,
- platform, browser, any pertinent log data, any other relevant details
- (please be specific) and, if possible, some way to reproduce the bug.
-
- * Submit feature requests only through our Sourceforge feature request forum:
-
- http://sourceforge.net/tracker/?atid=361118&group_id=11118&func=browse.
-
-
- * You can also send feedback on websites that Privoxy has problems with. Please bookmark
- the following link: "Privoxy - Submit Filter Feedback"
- . Once you surf to a page with problems, use the
- bookmark to send us feedback. We will look into the issue as soon as possible.
-
-
- * For any other issues, feel free to use the mailing lists:
-
- http://sourceforge.net/mail/?group_id=11118.
-
-
- Anyone interested in actively participating in development and related
- discussions can also join the appropriate mailing list. Archives are
- available, too.
-
--------------------------------------------------------------------------------
+ The result of this is Privoxy, whose first stable version, 3.0, was
+ released August, 2002.
-11. Copyright and History
+ --------------------------------------------------------------------------
-11.1. Copyright
+10. See also
-Privoxy is free software; you can redistribute it and/or modify it under the
-terms of the GNU General Public License as published by the Free Software
-Foundation; either version 2 of the License, or (at your option) any later
-version.
+ Other references and sites of interest to Privoxy users:
-This program is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
-PARTICULAR PURPOSE. See the GNU General Public License for more details, which
-is available from the Free Software Foundation, Inc, 59 Temple Place - Suite
-330, Boston, MA 02111-1307, USA.
+ http://www.privoxy.org/, the Privoxy Home page.
-You should have received a copy of the GNU General Public License along with
-this program; if not, write to the Free Software Foundation, Inc., 59 Temple
-Place, Suite 330, Boston, MA 02111-1307 USA.
+ http://www.privoxy.org/faq/, the Privoxy FAQ.
--------------------------------------------------------------------------------
+ http://sourceforge.net/projects/ijbswa/, the Project Page for Privoxy on
+ SourceForge.
-11.2. History
+ http://config.privoxy.org/, the web-based user interface. Privoxy must be
+ running for this to work. Shortcut: http://p.p/
-Privoxy is evolved, and derived from, the Internet Junkbuster, with many
-improvments and enhancements over the original.
+ http://sourceforge.net/tracker/?group_id=11118&atid=460288, to submit
+ "misses" and other configuration related suggestions to the developers.
-Junkbuster was originally written by Anonymous Coders and Junkbusters
-Corporation, and was released as free open-source software under the GNU GPL.
-Stefan Waldherr made many improvements, and started the SourceForge project
-Privoxy to rekindle development. There are now several active developers
-contributing. The last stable release of Junkbuster was v2.0.2, which has now
-grown whiskers ;-).
+ http://www.junkbusters.com/ht/en/cookies.html, an explanation how cookies
+ are used to track web users.
--------------------------------------------------------------------------------
+ http://www.junkbusters.com/ijb.html, the original Internet Junkbuster.
-12. See also
+ http://privacy.net/, a useful site to check what information about you is
+ leaked while you browse the web.
-Other references and sites of interest to Privoxy users:
+ http://www.squid-cache.org/, a popular caching proxy, which is often used
+ together with Privoxy.
-http://www.privoxy.org/, The Privoxy Home page.
+ http://www.pps.jussieu.fr/~jch/software/polipo/, Polipo is a caching proxy
+ with advanced features like pipelining, multiplexing and caching of
+ partial instances. In many setups it can be used as Squid replacement.
-http://sourceforge.net/projects/ijbswa, the Project Page for Privoxy on
-Sourceforge.
-
-http://p.p/, access Privoxy from your browser. Alternately, http://
-config.privoxy.org may work in some situations where the first does not.
-
-http://p.p/, and select "actions file feedback system" to submit "misses" to
-the developers.
-
-http://www.junkbusters.com/ht/en/cookies.html
-
-http://www.waldherr.org/junkbuster/
-
-http://privacy.net/analyze/
-
-http://www.squid-cache.org/
-
-
+ http://tor.eff.org/, Tor can help anonymize web browsing, web publishing,
+ instant messaging, IRC, SSH, and other applications.
+ http://www.privoxy.org/developer-manual/, the Privoxy developer manual.