Mercurial > dovecot > original-hg > dovecot-1.2
annotate TODO @ 7391:c73d6224a96b HEAD 1.1.rc3
Released v1.1.rc3.
| author | Timo Sirainen <tss@iki.fi> |
|---|---|
| date | Sun, 09 Mar 2008 12:51:51 +0200 |
| parents | dfd811aa0418 |
| children | 4607141a6bdc 929198b1f313 |
| rev | line source |
|---|---|
| 7380 | 1 - dbox: |
| 2 - "metadata changed unexpectedly" with alt paths - why? | |
| 3 - check that metadata is always correct and whitespace contains only | |
| 4 whitespace | |
| 5 - "File unexpectedly lost" doesn't get fixed by itself | |
| 6 - doesn't call fsync | |
| 7259 | 7 - do something about From_-lines splitting mails with mboxes |
| 8 - lucene: handle replacement chars? | |
| 9 - squat: | |
| 7380 | 10 - wrong indexid |
| 11 - fts_build_init() assertion failed: (last_uid < last_uid_locked) | |
| 12 - nfs support (cache flushes, how can write fail with ESTALE?) | |
| 7259 | 13 - is locking done right? it reads header without file being locked? |
| 14 - split after ~8 bytes? | |
| 7391 | 15 - expunges are delayed until more mails are added |
| 7259 | 16 - test replacement chars (SEARCH / SORT / Squat) |
| 6987 | 17 |
| 18 - cache: compress when we can drop temporary fields. | |
| 19 - POP3 UIDL caching | |
| 20 - ACL: "foo/bar" in public namespace -> LIST "" % doesn't show "foo" | |
| 21 - new %modifier for reverse DNS lookups with a cache | |
| 22 - auth_gssapi_hostname = %Xl | |
| 23 - proxying would also want DNS lookups, but not reverse.. | |
| 7072 | 24 - ldap domain lookups which set the base for user lookup |
| 5621 | 25 |
| 6105 | 26 - maildir+pop3/deliver fast updates: |
| 27 - with locking enabled, pop3 could just keep the one and same sync lock and | |
| 28 do the whole thing using sync transaction | |
| 29 - don't update dovecot-uidlist if dovecot.index.cache doesn't exist / | |
| 30 there's nothing to cache | |
| 31 - if all messages are expunged and there are no unknown extensions in index, | |
| 32 unlink dovecot.index and rotate log and add some initial useful info to | |
| 33 the log (uidvalidity, nextuid) | |
| 5621 | 34 |
| 6105 | 35 - maildir |
| 6987 | 36 - don't allow more than 26 keywords |
| 6105 | 37 - physical separator could be configurable |
| 38 - setting flags to same as they already are causes unnecessary | |
| 39 rename()s with identical parameters | |
| 40 - deliver+maildir: if new mails are in new/ or cur/ they're not added to | |
| 41 dovecot-uidlist but newly saved mails are, so UIDs will be in wrong order | |
| 42 - maildir_copy_with_hardlinks: We're currently first hardlinking to tmp/ and | |
| 43 then rename()ing. This wouldn't be necessary if uidlist syncing noticed | |
| 44 that someone else already had added them to uidlist, and the existing UIDs | |
| 45 could be assigned to them in the index. | |
| 6754 | 46 - copying should copy already-cached data |
| 6105 | 47 - maildir_copy_preserve_filename=yes has a race condition causing "Append with |
| 48 UID n, but next_uid = y" errors when quota plugin is loaded. Practically | |
| 49 won't happen except in stress testing. | |
| 5621 | 50 |
| 6105 | 51 - mbox |
| 52 - UID renumbering doesn't really work after all? | |
| 53 - still problems with CRLF mboxes.. | |
| 54 | |
| 6987 | 55 - mail_log: log appends. support from and subject fields |
| 56 - proxy: If remote server disconnects on login: | |
| 57 login: tried to change state 2 -> 2 | |
| 6105 | 58 - logging consistency: |
| 59 http://www.dovecot.org/list/dovecot/2007-April/021532.html | |
| 60 - EXPUNGE command in read-only mailbox should give an error message if | |
| 61 there are messages marked as \Deleted? | |
| 62 - dovecot -o setting=something overriding | |
| 5557 | 63 - file_cache: we're growing the mmap in page size blocks, which is horribly |
| 64 slow if mremap() doesn't exist. | |
| 65 - login_max_processes_count shouldn't count proxying processes | |
| 66 | |
| 67 - Allow %variables in mail_chroot setting | |
| 68 - something should be done to umask setting. we should be creating files with | |
| 69 0666 or 0777 and rely on umask, but we shouldn't do that unless we're sure | |
| 70 that the umask is the wanted one (ie. imap/pop3 process wasn't started | |
| 71 directly) | |
| 72 - ssl_verify_client_cert isn't working if the SSL cert doesn't have CRL | |
| 73 | |
| 3087 | 74 - keywords: |
| 75 - add some limits to how many there can be | |
| 76 - don't return \* in PERMANENTFLAGS when we're full | |
| 77 - remove unused keywords? | |
| 2774 | 78 |
| 79 - caching | |
| 3904 | 80 - force bits should be used only for nonregistered fields |
| 81 - change envelope parsing not to use get_headers() so imap.envelope can | |
| 82 actually be cached without all the headers.. | |
| 6105 | 83 - if there's no other pressure for compression, we should do it when |
| 84 enough temp fields are ready to be dropped | |
| 3904 | 85 - we could try compressing same field values into a single |
| 86 location in cache file. | |
| 7259 | 87 - place some maximum limit of fields to cache file? maybe some soft and |
| 88 hard limits, so when soft limit is reached drop fields that have | |
| 89 been used only once. when hard limit is reached drop any fields to get | |
| 90 more space. all this to avoid cache file growing infinitely. | |
| 2774 | 91 |
| 3087 | 92 - mbox |
| 4449 | 93 - dirty state should be stored to index (with mbox_very_dirty_syncs) |
| 94 - after some locking timeouts: mbox-lock.c: line 518 (mbox_lock): | |
| 95 assertion failed: (lock_type == F_RDLCK || mbox->mbox_lock_type != F_RDLCK) | |
| 96 - controldir for mboxes too and place subscriptions file there? | |
| 3904 | 97 - syncing existing indexes takes 4x longer than creating new one, why? |
| 98 - how well does dirty sync + status work? it reads the last mail every | |
| 99 time? not very good.. | |
| 100 - always add empty line. make the parser require it too? syncing should | |
| 101 make sure there always exists two LFs at end of file. raw-mbox-stream | |
| 102 should make sure the last message ends with LF even if it doesn't exist | |
| 103 in the file | |
| 104 - Quote "From ", unquote ">From " | |
| 4449 | 105 - COPY doesn't work to itself (lock assert crash, for now just disallowed) |
| 2143 | 106 - if we can't create dotlock file for mbox, make sure it still can be |
| 107 selected in read-only state | |
| 108 | |
| 109 - index | |
| 110 - if log file is lost, generate it from old and new index | |
| 3087 | 111 - read-only support for mailboxes where we don't have write-access |
| 6105 | 112 - index file format changes: |
| 113 - pack UIDs to beginning of file with UID ranges | |
| 114 - use squat-like compressed uid ranges everywhere | |
| 6782 | 115 - write first extension intros in dovecot.index.log always with names |
| 116 - or better yet, drop the intro concept completely as it is now | |
| 117 - add "transaction boundaries" so we know which records belong to a | |
| 118 single transaction. | |
| 119 - only after that we can remove the transaction log offset | |
| 120 overwriting (otherwise we can get partial transactions in views) | |
| 2143 | 121 |
| 4449 | 122 - namespaces |
| 123 - namespaces: add new "auto_disable" flag so if the mailbox can't be opened | |
| 124 (eg. file doesn't exist), just ignore the problem and disable the | |
| 125 namespace | |
| 126 | |
| 127 - lib-storage | |
| 5557 | 128 - rename: allow moving between storages, as long as they're of same type |
| 4449 | 129 - x search charset asdf all -> should fail |
| 3087 | 130 - should we allow following symlinks in mbox/maildirs? they are now. |
| 131 - if we implement shared mailboxes with shared indexes, never do that or | |
| 132 others could symlink your personal mailboxes and see the indexes | |
| 133 created for it which may contain envelope etc. data | |
| 134 - this allows circular mailbox hierarchies which should be prevented by | |
| 135 eg. allowing max. 20 hierarchies. | |
| 136 | |
| 137 - login | |
| 4449 | 138 - when pipelining login command + post-login commands, login process should |
| 139 pass the command to imap/pop3 process (at least one pop3 client does this) | |
| 140 - imap-login: Master sent reply with unknown tag 1. client closed | |
| 141 connection at the exact same time master was logging it in? | |
| 142 see master_request_abort() | |
| 3087 | 143 - Digest-MD5: support integrity protection, and maybe crypting. Do it |
| 144 through login process like SSL is done? | |
| 145 - x login foo bar | |
| 146 x NO Authentication failed. | |
| 147 x login cras pass | |
| 148 * BYE Disconnected for inactivity. | |
| 149 ^ but it's not disconnecting! (buggy dovecot-auth not replying) | |
| 3744 | 150 probably because userdb lookup didn't reply, and fd was already sent |
| 151 for master.. should imap-login be handling it anymore?.. | |
| 3087 | 152 - imap-login: Authenticate PLAIN failed: Authentication failed: |
| 153 Authentication server isn't connected, try again later.. [127.0.0.1] | |
| 154 ^ NO Authentication failed. (should be Temporary login failure!) | |
| 155 - if auth process dies, login process should retry authentication if | |
| 156 possible. or if not, disconnect the client so it doesn't think the auth | |
| 157 failed. | |
| 158 - send client IP immediately after accept() to master process. make sure | |
| 159 master shows the IP if login dies unexpectedly. master should probably | |
| 160 also kill the login process if it doesn't kill itself soon enough.. or | |
| 161 maybe just log the IP immediately. | |
| 474 | 162 |
| 3087 | 163 - auth |
| 4449 | 164 - with blocking passdb we're not caching lookups if the password was wrong |
| 5557 | 165 - non-plaintext authentication doesn't support all features: |
| 166 - multiple passdbs don't work, only the first one is used | |
| 167 - auth cache's last_success password change check doesn't exist | |
| 6987 | 168 - allow returning multiple gids |
| 3087 | 169 - SIGHUP restarts auth processes .. but does it wait until they've finished |
| 170 with all requests? no. | |
| 171 - does dovecot-auth really break when it runs out of fds? | |
| 4449 | 172 - dovecot-auth should limit how fast authentication requests are allowed |
| 173 from login processes. especially if there's one login/connection the speed | |
| 3087 | 174 should be something like once/sec. also limit how fast to accept new |
| 175 connections. | |
| 176 - support read-only logins. user could with alternative password get only | |
| 177 read-access to mails so mails could be read relatively safely with | |
| 178 untrusted computers. Maybe always send [ALERT] about the previous | |
| 179 read-only login time with IP? | |
| 4449 | 180 - dovecot-auth workers: create a separate dovecot-pam worker which shares |
| 181 pretty much all code with dovecot-auth worker but isn't linked against | |
| 182 any libraries. or..? this might be difficult to do, especially because the | |
| 183 workers currently can handle any kind of passdb/userb requests. perhaps | |
| 184 there should be a completely separate simple PAM authenticator binary. | |
| 526 | 185 |
| 3087 | 186 - master |
| 187 - configurable syslog prefix | |
| 3450 | 188 - if there are duplicate settings, complain about it |
| 3087 | 189 |
| 190 - quota | |
| 191 - if dovecot-uidlist can't be written, assume the new mails have UIDs | |
| 192 beginning from uidlist.next_uid. Whenever mails are expunged, overwrite | |
| 193 the next_uid field with the current highest next_uid. Whenever we have | |
| 194 assumed UIDs and uidlist gets updated, throw the client out with | |
| 195 "inconsist mailbox". | |
| 196 | |
| 197 - ssl | |
| 198 - add setting: ssl_options = bitmask. by default we enable all openssl | |
| 199 workarounds, this could be used to disable some of them | |
| 200 - gnutls support isn't working | |
| 965 | 201 |
| 3087 | 202 - search |
| 6232 | 203 - message header search: we should ignore LWSP between two MIME blocks(?) |
| 204 - message_search_init() could accept multiple search keywords so we | |
| 1250 | 205 wouldn't need to call it separately for each one (so we wouldn't need |
| 206 to parse the message multiple times). | |
| 207 - could optionally support scanning inside file attachments and use | |
| 208 plugins to extract text out of them (word, excel, pdf, etc. etc.) | |
| 209 - Create our own extension: When searching with TEXT/BODY, return | |
| 210 the message text surrounding the keywords just like web search engines | |
| 211 do. like: SEARCH X-PRINT-MATCHES TEXT "hello" -> * SEARCH 1 "He said: | |
| 212 Hello world!" 2 "Hello, I'm ...". This would be especially useful with | |
| 213 the above attachment scanning. | |
| 0 | 214 |
| 4449 | 215 - deliver |
| 5557 | 216 - recipient_delimiter setting so user+mailbox@domain works directly |
| 4449 | 217 |
| 3087 | 218 - general |
| 4449 | 219 - stop using atol(), atoi(), strtoul() etc. in places where we actually |
| 220 care about what they return, and rather create our own function which | |
| 221 checks if the input overflows the integer, and if so call i_fatal() | |
| 3087 | 222 - rfc2231 continuation support (useless?) |
| 1553 | 223 - rfc2557 support for BODYSTRUCTURE, as specified by RFC3501 |
| 4449 | 224 - LMTP server |
| 225 - ability to build plugins statically into the binaries | |
| 3087 | 226 - ~/.dovecotrc to override system wide settings. namespace settings should |
| 227 override all the previous namespace settings instead of adding new. | |
| 228 - things break if next_uid gets to 2^32 | |
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229 |
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230 capabilities: |
| 4449 | 231 - preferrably all should be implemented as plugins |
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232 - possibility to disable them from config file |
| 3087 | 233 - THREAD=ORDEREDSUBJECT - although pretty useless I'd think. |
| 5621 | 234 - acl (rfc4314) |
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235 - id (rfc2971) |
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236 - must be configurable what gets sent, default to only name=Dovecot |
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237 - separate pre/post-login settings |
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238 - optionally log configured parts of the client information, but only |
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239 once, probably at the same time as logging "Logged in", |
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240 "Disconnected", etc. |
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241 - remember to force truncating values longer than 30 chars, |
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242 especially before logging |
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243 - mailbox-referrals (rfc2193) |
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244 - this is useful whenever we would otherwise need to make the |
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245 connection ourself. for example load balancing and shared mailboxes |
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246 requiring another UID to run. |
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247 - this rfc defines no exact way for server to detect if client |
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248 supports referrals or not. I don't think there's much point in |
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249 supporting only referrals, as most clients don't support them. |
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250 Instead we should return referrals when we know that client |
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251 supports them, otherwise do the connecting ourself. If client |
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252 issues RLIST or RLSUB command, it's safe to assume it supports |
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253 referrals. |
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254 - for load balancing this works just fine, but what about shared |
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255 mailboxes which require different UID? If we login with our own |
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256 username, we end up with our own UID instead of what we wanted. |
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257 IMAP URLs don't support separated authorization id which would |
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258 have made this very easy.. We could give the "userid@group" as |
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259 userid, but clients probably treat it as different userid and |
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260 ask the password again. |
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261 - problems, problems, .. maybe not worth the trouble. |
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262 - drafts: |
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263 - http://www.imc.org/ids.html |
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264 - annotate (draft-ietf-imapext-annotate) |
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265 - per-message annotations. this will be major change. especially |
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266 because currently there's no suitable storage for them, and |
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267 they'll probably change all the time.. maybe if we moved into |
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268 berkeley db to store the .data file and these annotations. |
| 1178 | 269 - this is separate problem from index files. indexes are treated as |
| 270 temporary files, annotations are permanent data. we'd have to | |
| 271 support non-db way to do this too, which would probably be just a | |
| 272 simple (slow) text file. | |
| 5621 | 273 - use lib-dict probably |
| 274 - metadata (draft-daboo-imap-annotatemore) | |
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275 - server and per-mailbox annotations. much easier than |
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276 per-message annotations, but they'd be easier to place into |
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277 db as well. |
| 5621 | 278 - lib-dict, again |
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279 - binary (draft-nerenberg-imap-binary) |