X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=TODO.txt;h=f5c3456261c4f25d1c6ce72375f6d6654508d49b;hb=d31db10231e9ed89f64fdf6e0fb7cae182aa377e;hp=3653065fd9efc8fbe7b83b229b04630f7ea6f08a;hpb=4da51858a69d3497be786969b875fc8889aa9bca;p=~andy%2Ffetchmail diff --git a/TODO.txt b/TODO.txt index 3653065f..f5c34562 100644 --- a/TODO.txt +++ b/TODO.txt @@ -1,24 +1,124 @@ -soon: -- thread on fetchmail users "Invalid SSL certificate" by Philip Susi, - SSL negotiation does not use ERR_error_string(3ssl) to report errors - in a readable way, we just report socket errors with no good reason. -- find a solution for the "invalid header" discards message problem - (escape headers and stuff reminder into body) -- https://bugzilla.novell.com/show_bug.cgi?id=246829 -- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=432618 +Note that there is a separate todo.html with different content than this. + +soon - MUST: +- blacklist DigiNotar/Comodo hacks/certs, possibly with Chrome's serial# + list? +- check if wildcards from X.509 are handled as strictly as required by + the RFCs. +- audit if there are further untrusted data report_*() calls. +- Debian Bug #475239, MIME decoder may break up words (need to quote results) +- put bare IP addresses in brackets for SMTP (check if there are RFC + 1123/5321/5322 differences) +- Fix further occurrences of SMTP reply code handling: + - for proper smtp_reponse caching of multiline codes (there are some) + - for stomping over control characters. +- check if smtpname and smtpaddress in particular work as advertised, + thread "Fetchmail with Postfix virtual users" around 2009-09-23 on + fetchmail-users@, by Joost Roeleveld and Gerard Seibert. +- virtual domain DOCUMENTATION (rewriting @example.com to + @virtual.example.com possible? Joost Roeleveld, thread "Fetchmail with + Postfix virtual users" around 2009-09-23 on fetchmail-users@). + +soon - SHOULD: +- support NIL and strings where they are alternatives to literals +- Debian Bug #531589: fetchmail ignores SIGUSR1 in idle mode. + seems non-trivial to fix: in imap_idle(), we wait for untagged + responses, and may be deep in SSL_peek -- and that restarts the + underlying blocking read() from the socket, so we never break out of + the SSL_peek() with SIGUSR1. +- add repoll for all kinds of auth failures + (requires framework to track which auth failed in auto mode) +- SockOpen sometimes exits with errno == 0, confusing users (found with + Google RealTime on Twitter) +- make sure the man page completely lists all options (f. i. sslcertpath) in + the tables. +- allow \Deleted without \Seen, rf. + http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=466299 +- document IMAP4 ACL requirements +- CRYPTO: log configured server name on certificate mismatch (perhaps pay + attention to via entries and stuff like that) +- CRYPTO: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=432618 * write a table of combinations of TLS/SSL options -- complete SA based on feedback from reporter, publish it after release - add To: header to warning mails (authfail for instance) -- BerliOS Bug #11576, Bug #11797 +- Fix TOCTOU race around prc_filecheck* +- Read CAPABILITY from greeting if present, saves one round trip. +- Check if LAST argument is properly validated against message count. +- add Message-ID: header and other SHOULD headers to warning mails? +- report actual SMTP error with "SMTP listener refused delivery", sugg. + Richard Brooksby, fetchmail-users 2010-04-06. + +soon - MAY: +- find a better replacement for sscanf parsing - we don't usually + detect errors in format strings such as "* %d FETCH " because we don't + check if the FETCH is (a) present, (b) consumed. +- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=471176 + => fetchmail: support utf-8 encoding in log file + Revisit http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=400719 + => syslog messages are localised + http://lists.debian.org/debian-devel/2006/11/msg01068.html +- when logging to syslog, disable locale? +- Get rid of peeking in socket.c? MSG_PEEK seems non-portable. +- revise ticker, and add something like .........20%.... ... 100% + (suggested by Yue Wu) + +questionable: +- Convert POP3 UIDs to X-UIDL? +- fetch IMAP message in one go (fetchmail-devel by Adam Simpkins + around Nov 2nd)? 6.4: -- change SSL/TLS UI incompatibly, making it easier to use -- allow selection of SSL/TLS Ciphers -- perhaps switch to libgsasl and libgnutls (which doesn't talk SSLv2) -- make the SSL default v3 (rather than v23). +- Properly free host/user entries (through C++ class instantiation and destructors...) +- Remove stupid options, such as spambounce, or deferred bounces for anything + but wrong addresses +- Do not ever guess envelope from content headers such as To:/Cc:/Resent-To: or + similar. +- Replace sscanf/fscanf by functions that do range checking + (strtol/strtoul), and make arguments unsigned long. +- drop LAST support +- use PS_PROTOCOL for pre-/post-connect command failures - 6.3 uses + PS_SYNTAX, and that's not necessarily the case. At least if the + command terminates with a signal, we should report PS_PROTOCOL. +- revisit maximum allowed rcfile permissions, fix inconsistency + (silently allowing g+x). +- make UID code more efficient, parsing is O(n^2), should be no worse + than O(n log n), lookup is O(n), should be O(log n). + * Idea for C: use tfind/tsearch. Need to split idlist up + so it only keeps the ids, and use an array to track status. +- help systematic debugging + - by making logging more strict (Postfix's msg_* as example??) + - by adding a --loggingtest or something that emits + a set of test log messages at various severity levels, in order to + make sure people get complete logs. + - by adding messages where fetchmail stuffed its output. +- Debian Bug #454291 fetchmail --quit: should check, that pid file + really contains pid of fetchmail process (Dmitry Nezhevenko) + => use fcntl() lock? +- feature to skip first N or all messages upon first download, or fetch + last N. +- download only messages whose headers match a filter (by Toby, Usenet + Nov 2007 de.comm.software.mailserver + Message-ID: <1195033726.123704.296060@k79g2000hse.googlegroups.com>) +- feature request by Daniel Goering on + fetchmail-devel 2007-11-15: populate .fetchids from current messages. + (it'll probably be useful to limit this to "all but the 10 latest" or + "all before date this-and-that") +- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=374514 + "Deleting fetchids file" vs. POP3 - probably unneeded if we use IMAP UIDs. +- CRYPTO: change SSL/TLS UI incompatibly, making it easier to use +- CRYPTO: allow selection of SSL/TLS Ciphers +- CRYPTO: perhaps switch to libgsasl and libgnutls (which doesn't talk SSLv2, + but we should abandon that anyways). +- CRYPTO: perhaps port to NSS? Check license and features and required procedure + changes. - Redhat Bugs #333741 (crypto consolidation), #346891 (port fetchmail to NSS) +- CRYPTO: make the SSL default v3 (rather than v23). +- CRYPTO: remove sslfingerprint? too easily abused (see NEWS) +- CRYPTO: force sslcertck +- CRYPTO: by default forbid cleartext or other compromising password + schemes over insecure connections? - put more hints to the FAQ (should we call it FGA?) as first support place - make sure we print socket error messages such as connection reset by peer to hint users the problem is not in fetchmail +- require envelope option for multidrop ; if not found in header, defer message? - > b) When the envelope header is specified, but it isn't found, a > warning is logged and the mail is forwarded to the postmaster > ("WARNING: Envelope header $HEADER found, cannot identify the @@ -42,13 +142,43 @@ soon: - fetchmail -s with running daemon complains rather than silently restarting daemon - send warning message when connection fails? -- when logging to syslog, disable locale? - check FAQ O5 - do we really prefer From: over envelope?!? - add code to allow safe authentication schemes if TLS fails - make APOP an authenticator, integrate with regular auto authentication but stuff it at the end -- use SASL? +- allow forcing RETR (RETR vs. TOP, fetchmail-users, drbob 2008-01-11) +- CRYPTO: use SASL? +- make logfile more useful (redirect not only in daemon mode) +- close/reopen logfile on certain signals (for newsyslog/logrotate + support) +- for virtual mapping, we don't currently support local user aliases or + regexp matching with replacement. This would be useful for hosting + several virtual domains in one multidrop mailbox, as in + qmail/courier's: + + @one.example:bob-one + @two.example:bob-two + + Result: + some@one.example maps to bob-one-some@serverdomain + another@two.example maps to bob-two-example@serverdomain + + we can strip the bob-*, but but we don't support domain catchalls + here, and we cannot currently delegate or rewrite the remaining + one-* or two-* users in a useful way. All local parts of the upstream + domains must be known and mapped in the configuration file. + (See fetchmail-users, Michelle Konzack, 2009-05-03, "4 multidrop but one + destination server" and followup) + + This probably entails some form of extended user mapping inside + fetchmail, for map_name() in transact.c, and possibly + find_server_names() ibidem. +- more verbose diagnostics, what, why, how, ... (what does fetchmail do, what + does it expect, what does it get instead, what does that mean, how can the + user fix it; references to the manual) + DOCUMENTATION: - Add info whether Keywords are global, server or user keywords - consolidate multidrop documentation +- HOWTO (on configuration, and on SSL in particular)