1 $Id: TODO,v 1.38 2011/04/16 17:29:24 fabiankeil Exp $
3 Some Privoxy related tasks, sorted by the time they
4 have been added, not by priority.
6 1) Add some regression tests. Filters should be tested automatically
7 (variables too). Could probably reuse large parts of Privoxy-Filter-Test.
9 3) Fix some more XXX: comments.
11 4) Fix some more compiler warnings. (Especially on amd64)
14 6) Remove actions that aren't needed anymore:
16 content-type-overwrite should probably stay as it's also
17 used by some of the CGI pages (XXX: name them).
19 crunch-client-header and crunch-server-header should probably
20 go, their only advantage is that their search strings can be
21 controlled through the CGI pages, other than that they only
24 crunch-if-none-match can be replaced with a header filter.
26 prevent-compression has a misleading name and could
27 be replaced with a header filter.
29 7) force-text-mode has a stupid name and should probably
30 be renamed to force-filter-mode.
32 8) handle-as-empty-document and handle-as-image should
33 be merged to something like handle-as{something} to
34 prevent them from being activated at the same time.
36 10) There's a bug in the CGI editor that turns the
37 first section's "Insert new section below" into
38 a "Insert new section above" button.
40 11) CGI templates should use semantically-correct HTML
43 12) Add pipelining support.
45 13) Use zlib to deflate content before sending it to
46 the client. Measure if it makes a difference.
49 Note that this is already being worked on and mostly done
50 for buffered content and internal CGI responses.
52 The difference it does make, seems to be that it slows things
53 down if the client and Privoxy are running on the same system,
54 so for most users enabling it will make no sense.
56 14) Allow to filter POST parameters.
58 15) If trusted CGI pages are requested without trusted referrer,
59 set the status code to 403 instead of 200.
61 16) Filter SSL encrypted content as well.
63 At the beginning we could use a unencrypted connection between
64 client and Privoxy, and use an encrypted connection between
65 Privoxy and the server.
67 This should be good enough for most of the content the
68 user would want to filter.
70 19) enable-forward-fallback. Syntax? Suggested by K.R.
72 21) User Manual delivery doesn't accept multiple slashes. Should it?
74 22) Verify action files properly (Including arguments) and
75 act accordingly (should probably intercept all requests
76 with a "Invalid option foo detected" CGI page).
78 23) Do the same in case of syntax errors in the configuration file,
79 instead of just exiting or ignoring the problem.
81 25) Handle multiple filters with the same name better. Reject them?
83 26) Let show-url-info detect clearly invalid URLs.
85 27) Make errno logging less thread-unsafe.
86 Verify that it's really an improvement.
88 28) Don't take default ports in case of invalid forwarding ports.
90 31) If a string action foo is disabled csp->action->string[ACTION_STRING_FOO]
91 doesn't necessarily contain NULL, but may contain the string of an
92 enabled foo action in an overruled section. Is it a bug? Does it matter?
94 32) In case of forwarding failures with socks port == 9050,
95 show extra info about Tor (the whole FAQ entry?).
97 36) Unload unused action files directly, even if they are
98 disabled without replacement.
100 38) In the final results, explicitly list disabled multi actions
101 with their parameters. Not as trivial as it sounds.
103 39) Verify loadcfg.c jarfile reloading and friends.
104 /* XXX: Does disabling this actually work? */
106 40) Fix core dumping in daemon mode. Introduce a cwd config option?
108 41) Change documentation framework to one that works cross-platform.
111 42) Add DTrace hooks. Now that FreeBSD has userland DTrace
112 support there's no longer any reason not to.
114 43) Write a tool to check URL patterns against URLs in the log file.
115 This could be included in Privoxy-Regression-Test.
117 44) Privoxy-Log-Parser: Consider highlighting "Connection" in:
118 23:13:03.506 283b6100 Header: Replaced: 'Connection: Keep-Alive' with 'Connection: close'
120 49) Add FAQ for NTLM proxies. Still necessary?
122 50) Investigate possible PCRS template speedup when searching
123 macros with strstr() before compiling pcrs commands.
124 Investigated, needs some restructuring but is probably worth it.
126 51) Make user-manual directive more generic to allow serving
127 the FAQ and other stuff, too. Consider changing the port
128 for "same origin policy" issues.
130 53) Find a more reliable hoster. Involves finding out what our
131 requirements are and which SF alternatives fulfil them.
132 It would probably also make sense to look into what other
133 projects did when migrating away from SF.
135 54) Move away from CVS to a more modern revision control system.
136 Find out if there are any objection against going with Git.
137 Using Git would also have the advantage that SF now pretents
138 to support it, so we could do it independently from 53).
140 55) Apply for Coverity scans: http://scan.coverity.com/
142 56) Apply for the "free online access for qualified open-source
143 software projects" for the Co-Advisor HTTP compliance tests:
144 http://coad.measurement-factory.com/details.html#pricing
146 57) Allow piping into external programs to allow more powerful
147 filters and policy decisions. Incomplete support available
148 in Fabian's popen branch.
150 58) Move more template strings from the code into the actual templates.
152 59) Import the German template translation.
154 60) Ask the Russian translators for input on how to make their
157 61) Consider (optionally?) skipping the hostname comparison when
158 checking if a connections that goes to a HTTP proxy can be reused.
159 Do all HTTP proxy support that? Is it worth it?
161 63) Reject clearly too large requests earlier?
163 64) Use proper copyright attribution. "Privoxy Developers"
166 65) Polish Website. Probably involves ditching the Docbook
167 mess in favour of wml. There should be already some threads
168 in the mailinglists archives about this.
170 66) Increase maximum number of action and filter files.
172 67) Clean up directory layout. Depends on 54 so we don't
173 lose the revision history.
175 68) Use standard make syntax so we don't depend on GNU make.
177 69) Update autoconf setup (or move away from it).
179 70) If the server connection is reset but the headers are
180 received, consider passing the mess to the client instead
181 of showing the connect-failed template. Relates to #2698674.
183 71) Allow to listen on multiple addresses without having to
186 74) Let Privoxy-Regression-Test optionally check that action
187 sections which disable actions actually are preceded by
188 sections that enable said actions.
190 75) Create a tool that creates Privoxy action (and filter?) files
191 out of adblock files. Could be implemented as option for
192 url-pattern-translator.pl.
194 76) Cache DNS responses. Note that this has been requested
195 several times by users, but is not a developer priority.
196 If you care about this, feel free to submit patches.
198 77) Allow to configure the IP address used in outgoing connections.
200 78) Allow to optionally use pcre's DFA algorithm.
202 79) Evaluate pcre alternatives.
204 80) Change FEATURE_EXTENDED_HOST_PATTERNS to support both
205 extended and vanilla host patterns at the same time.
207 Note that the requirement is to allow the user to decide
208 if the domain pattern should be interpreted as regex or
209 traditional host pattern and if it's not obvious that the
210 user made any decision, default to the latter.
212 Possible solutions would be:
214 1. An always-use-regex-domain-patterns config option
215 2. An enable-regex-domain-patterns-for-this-action-file option
216 3. An enable-regex-domain-patterns-for-this-action-file-until-the-user-says-otherwise option
217 4. A treat-the-domain-pattern-in-this-line-as-regex(-or-not) option
218 5. Combinations of the options above
220 With 2+4, 3+4 or 2+3+4 being the preferences until
223 82) Detect if the system time goes back in time let the user
224 know if it caused any connections to get closed.
226 83) Make the FAQ available through the CGI interface like the
229 84) Flesh out the user-manual delivery to serve pages from
230 other directories, too.
232 85) Once #84 is done, write a script that populates a directory with
233 various common third-party icons (stumbleupon.png, facebook.png ...)
234 and redirect requests for them to Privoxy.
236 86) Add a server-body-tagger action. This is trivial as as all the
237 functionallity required to do it already exists.
239 87) Add a client-body-tagger action. This is less trivial as we currently
240 don't buffer client bodies. After 14) is implemented it would be
243 88) Investigate if there's a Perl module that Privoxy-Regression-Test
244 could optionally use to keep connections alive.
246 89) When multiple block actions apply, consider showing all the block
247 reasons on the blocked page that haven't been overruled, not just
250 90) Implement NO-TAG: patterns that enable a section if the
251 provided pattern doesn't match any TAG. This would make
254 91) Add an optional limit for internal redirects. It would probably
255 be reasonable to default to a limit of one and showing an error
256 message if the request for the redirect URL would be redirected