From 767a318eea666a3af4881e3f351dcdabdf2df216 Mon Sep 17 00:00:00 2001 From: Oswald Buddenhagen Date: Sat, 18 Jun 2022 12:52:35 +0200 Subject: [PATCH] add new sync operation 'Old' this is essentially the same as 'New', but for previously seen messages, such as those that would have been instantly expunged (because they were marked as deleted), those that we failed to store for some reason, and already expired ones that are now flagged. REFMAIL: CAOgBZNonT0s0b_yPs2vx81Ru3cQp5M93xpZ3syWBW-2CNoX_ow@mail.gmail.com --- NEWS | 2 + src/config.c | 16 +++- src/driver.h | 1 + src/drv_imap.c | 8 +- src/drv_maildir.c | 3 +- src/main.c | 5 + src/main_sync.c | 2 +- src/mbsync.1 | 26 ++--- src/run-tests.pl | 240 +++++++++++++++++++++++++++++++++++++++++++++- src/sync.c | 121 ++++++++++++++++------- src/sync.h | 4 +- 11 files changed, 372 insertions(+), 56 deletions(-) diff --git a/NEWS b/NEWS index 1a70e52..3b9ef74 100644 --- a/NEWS +++ b/NEWS @@ -18,6 +18,8 @@ The unfiltered list of mailboxes in each Store can be printed now. A proper summary is now printed prior to exiting. +Added new sync operation 'Old'. + [1.4.0] The 'isync' compatibility wrapper was removed. diff --git a/src/config.c b/src/config.c index 9cef416..240c4cd 100644 --- a/src/config.c +++ b/src/config.c @@ -198,6 +198,8 @@ getopt_helper( conffile_t *cfile, int *cops, channel_conf_t *conf ) *cops |= OP_UPGRADE; } else if (!strcasecmp( "New", arg )) { *cops |= OP_NEW; + } else if (!strcasecmp( "Old", arg )) { + *cops |= OP_OLD; } else if (!strcasecmp( "Gone", arg )) { *cops |= OP_GONE; } else if (!strcasecmp( "Delete", arg )) { @@ -214,6 +216,8 @@ getopt_helper( conffile_t *cfile, int *cops, channel_conf_t *conf ) conf->ops[N] |= OP_UPGRADE; } else if (!strcasecmp( "PullNew", arg )) { conf->ops[N] |= OP_NEW; + } else if (!strcasecmp( "PullOld", arg )) { + conf->ops[N] |= OP_OLD; } else if (!strcasecmp( "PullGone", arg )) { conf->ops[N] |= OP_GONE; } else if (!strcasecmp( "PullDelete", arg )) { @@ -230,6 +234,8 @@ getopt_helper( conffile_t *cfile, int *cops, channel_conf_t *conf ) conf->ops[F] |= OP_UPGRADE; } else if (!strcasecmp( "PushNew", arg )) { conf->ops[F] |= OP_NEW; + } else if (!strcasecmp( "PushOld", arg )) { + conf->ops[F] |= OP_OLD; } else if (!strcasecmp( "PushGone", arg )) { conf->ops[F] |= OP_GONE; } else if (!strcasecmp( "PushDelete", arg )) { @@ -366,15 +372,15 @@ merge_ops( int cops, int ops[], const char *chan_name ) channel_str( chan_name ) ); return 1; } - if (ops[N] & OP_MASK_TYPE) + if (ops[N] & OP_DFLT_TYPE) goto ovl; - ops[N] |= OP_MASK_TYPE; + ops[N] |= OP_DFLT_TYPE; } else if (cops & XOP_PUSH) { if (cops & OP_MASK_TYPE) goto ivl; - if (ops[F] & OP_MASK_TYPE) + if (ops[F] & OP_DFLT_TYPE) goto ovl; - ops[F] |= OP_MASK_TYPE; + ops[F] |= OP_DFLT_TYPE; } else { ops[F] |= cops & OP_MASK_TYPE; ops[N] |= cops & OP_MASK_TYPE; @@ -383,7 +389,7 @@ merge_ops( int cops, int ops[], const char *chan_name ) if (ops[F] & XOP_TYPE_NOOP) goto cfl; if (!(cops & OP_MASK_TYPE)) - cops |= OP_MASK_TYPE; + cops |= OP_DFLT_TYPE; else if (!(cops & XOP_MASK_DIR)) cops |= XOP_PULL|XOP_PUSH; if (cops & XOP_PULL) diff --git a/src/driver.h b/src/driver.h index 62fe15b..de1d6ec 100644 --- a/src/driver.h +++ b/src/driver.h @@ -91,6 +91,7 @@ BIT_ENUM( OPEN_NEW, // Messages (possibly) not yet propagated *from* this store. OPEN_FIND, OPEN_FLAGS, // Note that fetch_msg() gets the flags regardless. + OPEN_OLD_SIZE, OPEN_NEW_SIZE, OPEN_PAIRED_IDS, OPEN_APPEND, diff --git a/src/drv_imap.c b/src/drv_imap.c index 4516023..e70654d 100644 --- a/src/drv_imap.c +++ b/src/drv_imap.c @@ -2895,8 +2895,14 @@ imap_load_box( store_t *gctx, uint minuid, uint maxuid, uint finduid, uint pairu ranges[0].last = maxuid; ranges[0].flags = 0; uint nranges = 1; - if (ctx->opts & OPEN_NEW_SIZE) + if (ctx->opts & OPEN_OLD_SIZE) { + if (ctx->opts & OPEN_NEW_SIZE) + ranges[0].flags = WantSize; + else + imap_set_range( ranges, &nranges, WantSize, 0, newuid ); + } else if (ctx->opts & OPEN_NEW_SIZE) { imap_set_range( ranges, &nranges, 0, WantSize, newuid ); + } if (ctx->opts & OPEN_FIND) imap_set_range( ranges, &nranges, 0, WantTuids, finduid - 1 ); if (ctx->opts & OPEN_PAIRED_IDS) diff --git a/src/drv_maildir.c b/src/drv_maildir.c index 3ea0348..eb32ee4 100644 --- a/src/drv_maildir.c +++ b/src/drv_maildir.c @@ -1111,7 +1111,8 @@ maildir_scan( maildir_store_t *ctx, msg_t_array_alloc_t *msglist ) free( entry->base ); entry->base = nfstrndup( buf + bl + 4, (size_t)fnl ); } - int want_size = ((ctx->opts & OPEN_NEW_SIZE) && uid > ctx->newuid); + int want_size = ((ctx->opts & OPEN_OLD_SIZE) && uid <= ctx->newuid) || + ((ctx->opts & OPEN_NEW_SIZE) && uid > ctx->newuid); int want_tuid = ((ctx->opts & OPEN_FIND) && uid >= ctx->finduid); int want_msgid = ((ctx->opts & OPEN_PAIRED_IDS) && uid <= ctx->pairuid); if (!want_size && !want_tuid && !want_msgid) diff --git a/src/main.c b/src/main.c index 55eed80..bd6ffe5 100644 --- a/src/main.c +++ b/src/main.c @@ -272,6 +272,8 @@ main( int argc, char **argv ) rlcac: if (!strcmp( opt, "new" )) { op |= OP_NEW; + } else if (!strcmp( opt, "old" )) { + op |= OP_OLD; } else if (!strcmp( opt, "upgrade" )) { op |= OP_UPGRADE; } else if (!strcmp( opt, "renew" )) { @@ -354,6 +356,7 @@ main( int argc, char **argv ) mvars->ops[F] |= XOP_TYPE_NOOP | XOP_HAVE_TYPE; break; case 'n': + case 'o': case 'd': case 'g': case 'f': @@ -365,6 +368,8 @@ main( int argc, char **argv ) for (;; ochar++) { if (*ochar == 'n') op |= OP_NEW; + else if (*ochar == 'o') + op |= OP_OLD; else if (*ochar == 'g') op |= OP_GONE; else if (*ochar == 'd') diff --git a/src/main_sync.c b/src/main_sync.c index 2dd859e..14c04d7 100644 --- a/src/main_sync.c +++ b/src/main_sync.c @@ -182,7 +182,7 @@ add_channel( chan_ent_t ***chanapp, channel_conf_t *chan, int ops[] ) chan_ent_t *ce = nfzalloc( sizeof(*ce) ); ce->conf = chan; - merge_actions( chan, ops, XOP_HAVE_TYPE, OP_MASK_TYPE, OP_MASK_TYPE ); + merge_actions( chan, ops, XOP_HAVE_TYPE, OP_MASK_TYPE, OP_DFLT_TYPE ); merge_actions( chan, ops, XOP_HAVE_CREATE, OP_CREATE, 0 ); merge_actions( chan, ops, XOP_HAVE_REMOVE, OP_REMOVE, 0 ); merge_actions( chan, ops, XOP_HAVE_EXPUNGE, OP_EXPUNGE, 0 ); diff --git a/src/mbsync.1 b/src/mbsync.1 index c13496b..d362b2b 100644 --- a/src/mbsync.1 +++ b/src/mbsync.1 @@ -61,11 +61,11 @@ Override any \fBRemove\fR options from the config file. See below. \fB-X\fR[\fBf\fR][\fBn\fR], \fB--expunge\fR[\fB-far\fR|\fB-near\fR] Override any \fBExpunge\fR options from the config file. See below. .TP -{\fB-n\fR|\fB-u\fR|\fB-g\fR|\fB-f\fR|\fB-0\fR|\fB-F\fR},\ - {\fB--new\fR|\fB--upgrade\fR|\fB--gone\fR|\fB--flags\fR|\fB--noop\fR|\fB--full\fR} +{\fB-n\fR|\fB-o\fR|\fB-u\fR|\fB-g\fR|\fB-f\fR|\fB-0\fR|\fB-F\fR},\ + {\fB--new\fR|\fB--old\fR|\fB--upgrade\fR|\fB--gone\fR|\fB--flags\fR|\fB--noop\fR|\fB--full\fR} .TP -\r{\fB-L\fR|\fB-H\fR}[\fBn\fR][\fBu\fR][\fBg\fR][\fBf\fR],\ - {\fB--pull\fR|\fB--push\fR}[\fB-new\fR|\fB-upgrade\fR|\fB-gone\fR|\fB-flags\fR] +\r{\fB-L\fR|\fB-H\fR}[\fBn\fR][\fBo\fR][\fBu\fR][\fBg\fR][\fBf\fR],\ + {\fB--pull\fR|\fB--push\fR}[\fB-new\fR|\fB-old\fR|\fB-upgrade\fR|\fB-gone\fR|\fB-flags\fR] Override any \fBSync\fR options from the config file. See below. .TP \fB-h\fR, \fB--help\fR @@ -574,7 +574,7 @@ case you need to enable this option. (Global default: \fBno\fR). . .TP -\fBSync\fR {\fBNone\fR|[\fBPull\fR] [\fBPush\fR] [\fBNew\fR] [\fBUpgrade\fR] [\fBGone\fR] [\fBFlags\fR] [\fBFull\fR]} +\fBSync\fR {\fBNone\fR|[\fBPull\fR] [\fBPush\fR] [\fBNew\fR] [\fBOld\fR] [\fBUpgrade\fR] [\fBGone\fR] [\fBFlags\fR] [\fBFull\fR]} Select the synchronization operation(s) to perform: .br \fBPull\fR - propagate changes from far to near side. @@ -583,6 +583,10 @@ Select the synchronization operation(s) to perform: .br \fBNew\fR - propagate newly appeared messages. .br +\fBOld\fR - propagate previously skipped, failed, and expired messages. +This has a (relatively) high cost and may repeatedly produce error messages, +so it always must be specified explicitly. +.br \fBUpgrade\fR - upgrade placeholders to full messages. Useful only with a configured \fBMaxSize\fR. .br @@ -601,10 +605,10 @@ This is the global default. \fBNone\fR (\fB--noop\fR on the command line) - don't propagate anything. Useful if you want to expunge only. .IP -\fBPull\fR and \fBPush\fR are direction flags, while \fBNew\fR, \fBUpgrade\fR, -\fBGone\fR and \fBFlags\fR are type flags. The two flag classes make up a -two-dimensional matrix (a table). Its cells are the individual actions to -perform. There are two styles of asserting the cells: +\fBPull\fR and \fBPush\fR are direction flags, while \fBNew\fR, \fBOld\fR, +\fBUpgrade\fR, \fBGone\fR, and \fBFlags\fR are type flags. +The two flag classes make up a two-dimensional matrix (a table). Its cells are +the individual actions to perform. There are two styles of asserting the cells: .br In the first style, the flags select entire rows/colums in the matrix. Only the cells which are selected both horizontally and vertically are asserted. @@ -620,10 +624,10 @@ In the second style, direction flags are concatenated with type flags; every compound flag immediately asserts a cell in the matrix. In addition to at least one compound flag, the individual flags can be used as well, but as opposed to the first style, they immediately assert all cells in their respective -row/column. For example, +row/column (with the exception of \fBOld\fR). For example, "\fBSync\fR\ \fBPullNew\fR\ \fBPullGone\fR\ \fBPush\fR" will propagate message arrivals and deletions from the far side to the near side and any -changes from the near side to the far side. +changes (except old messages) from the near side to the far side. .br Note that it is not allowed to assert a cell in two ways, e.g. "\fBSync\fR\ \fBPullNew\fR\ \fBPull\fR" and diff --git a/src/run-tests.pl b/src/run-tests.pl index 0152594..7fc89d4 100755 --- a/src/run-tests.pl +++ b/src/run-tests.pl @@ -1117,7 +1117,7 @@ my @x20 = ( C, "", "", "*FS*", ); -my @O21 = ("MaxSize 1k\n", "MaxSize 1k\n", "Expunge Near"); +my @O21 = ("MaxSize 1k\n", "MaxSize 1k\n", "Sync Full Old\nExpunge Near\n"); my @X21 = ( C, 0, B, C, "*S?", "*", "", + S, "*", "*", "", + Q, "", "*T", "*T", + R, "", "*", "*", +); +test("not old", \@x70, \@X71, \@O71); + +my @O71a = ("", "", "Sync New\nMaxMessages 3\nExpireUnread yes\n"); +test("not old + expire", \@x70, \@X71, \@O71a); + +my @O72 = ("", "", "Sync New Old\nMaxMessages 20\nExpireUnread yes\nExpunge Near\n"); +my @X72 = ( + S, E, R, + G, "", "/", "/", + H, "", ">", "", + I, "", "", "/", + M, "", "/", "/", + N, "", ">", "", + O, "", "", "/", + C, "*", "*", "", + J, "*", "*", "", + P, "*", "*", "", + S, "*", "*", "", + B, "", "*F", "*F", + L, "", "*", "*", + R, "", "*", "*", +); +test("old + expunge near", \@x70, \@X72, \@O72); + +# This omits the entries that cause idempotence problems +# due to not counting/expiring newly pushed messages. +my @x70a = ( + L, E, O, + A, "*", "", "", + B, "*F", "", "", + D, "*F", "*F", "*F", + E, "*", "", "_", # MaxExpiredFarUid + G, "_", "*T", "*T", + H, "*T", "*T", "_", + I, "", "", "*T", + K, "*T", "", "", + L, "*", "", "", # MaxPulledUid + M, "_", "*T", "*T", + N, "*T", "*T", "_", + O, "", "", "*T", # MaxPushedUid + Q, "*T", "", "", + R, "*", "", "", + S, "", "", "*", +); + +my @O72a = ("", "", "Sync New Old\nMaxMessages 3\nExpireUnread yes\nExpunge Near\n"); +my @X72a = ( + S, E, R, + G, "", "/", "/", + H, "", ">", "", + I, "", "", "/", + M, "", "/", "/", + N, "", ">", "", + O, "", "", "/", + S, "*", "*", "", + B, "", "*F", "*F", + L, "", "*", "*", + R, "", "*", "*", +); +test("old + expire + expunge near", \@x70a, \@X72a, \@O72a); + +my @O73 = ("", "", "Sync Pull New Old\nMaxMessages 20\nExpireUnread yes\n"); +my @X73 = ( + R, E, P, + B, "", "*F", "*F", + G, "", "<", "", + H, "", ">", "", + K, "", "*T", "*T", + L, "", "*", "*", + M, "", "<", "", + N, "", ">", "", + Q, "", "*T", "*T", + R, "", "*", "*", +); +test("pull old", \@x70, \@X73, \@O73); + +# This is "weird", because expiration overtook pulling. +my @x80 = ( + D, L, Q, + A, "", "", "*", + B, "*", "", "", + C, "*T", "", "", + D, "*F", "", "", # MaxPulledUid + E, "_", "*T", "*T", + F, "*T", "*T", "_", + G, "", "", "*T", + H, "", "", "*", + I, "*T", "", "", + J, "*", "", "", + K, "*F", "*F", "*F", + L, "*", "*~", "_", # MaxExpiredFarUid + M, "*", "*", "*", + N, "_", "*T", "*T", + O, "*T", "*T", "_", + P, "", "", "*T", + Q, "", "", "*", # MaxPushedUid + R, "*T", "", "", + S, "*", "", "", + T, "", "", "*T", + U, "", "", "*", +); + +my @X81 = ( + U, L, S, + F, "", ">", "", + L, "", "/", "", + O, "", ">", "", + T, "*T", "*T", "", + U, "*", "*", "", + I, "", "*T", "*T", + J, "", "*", "*", + R, "", "*T", "*T", + S, "", "*", "*", +); +test("weird not old", \@x80, \@X81, \@O71); + +my @X81a = ( + U, L, S, + F, "", ">", "", + L, "", "/", "", + O, "", ">", "", + T, "*T", "*T", "", + U, "*", "*", "", + I, "", "*T", "*T", + R, "", "*T", "*T", + S, "", "*", "*", +); +test("weird not old + expire", \@x80, \@X81a, \@O71a); + +my @X82 = ( + U, L, S, + E, "", "/", "/", + F, "", ">", "", + G, "", "", "/", + L, "", "/", "", + N, "", "/", "/", + O, "", ">", "", + P, "", "", "/", + T, "", "", "/", + A, "*", "*", "", + H, "*", "*", "", + Q, "*", "*", "", + U, "*", "*", "", + D, "", "*F", "*F", + J, "", "*", "*", + S, "", "*", "*", +); +test("weird old + expunge near", \@x80, \@X82, \@O72); + +my @x80a = ( + D, L, Q, + B, "*", "", "", + C, "*T", "", "", + D, "*F", "", "", # MaxPulledUid + E, "_", "*T", "*T", + F, "*T", "*T", "_", + G, "", "", "*T", + H, "", "", "*", + I, "*T", "", "", + K, "*F", "*F", "*F", + L, "*", "*~", "_", # MaxExpiredFarUid + N, "_", "*T", "*T", + O, "*T", "*T", "_", + P, "", "", "*T", + Q, "", "", "*", # MaxPushedUid + R, "*T", "", "", + T, "", "", "*T", + U, "", "", "*", +); + +my @X82a = ( + U, L, D, + E, "", "/", "/", + F, "", ">", "", + G, "", "", "/", + L, "", "/", "", + N, "", "/", "/", + O, "", ">", "", + P, "", "", "/", + T, "", "", "/", + H, "*", "*", "", + Q, "*", "*", "", + U, "*", "*", "", + D, "", "*F", "*F", +); +test("weird old + expire + expunge near", \@x80a, \@X82a, \@O72a); + +my @X83 = ( + S, L, Q, + E, "", "<", "", + F, "", ">", "", + L, "", "/", "", + N, "", "<", "", + O, "", ">", "", + D, "", "*F", "*F", + I, "", "*T", "*T", + J, "", "*", "*", + R, "", "*T", "*T", + S, "", "*", "*", +); +test("weird pull old", \@x80, \@X83, \@O73); + # Messages that would be instantly expunged on the target side. my @x90 = ( diff --git a/src/sync.c b/src/sync.c index 42b7dc1..a671fbe 100644 --- a/src/sync.c +++ b/src/sync.c @@ -709,6 +709,7 @@ box_opened2( sync_vars_t *svars, int t ) int any_dummies[2] = { 0, 0 }; int any_purges[2] = { 0, 0 }; int any_upgrades[2] = { 0, 0 }; + int any_old[2] = { 0, 0 }; int any_new[2] = { 0, 0 }; int any_tuids[2] = { 0, 0 }; if (svars->replayed || ((chan->ops[F] | chan->ops[N]) & OP_UPGRADE)) { @@ -731,6 +732,8 @@ box_opened2( sync_vars_t *svars, int t ) t = !srec->uid[F] ? F : N; if (srec->status & S_UPGRADE) any_upgrades[t]++; + else if (srec->uid[t^1] <= svars->maxuid[t^1]) + any_old[t]++; else any_new[t]++; if (srec->tuid[0]) @@ -762,8 +765,14 @@ box_opened2( sync_vars_t *svars, int t ) chan->ops[t] &= ~OP_UPGRADE; debug( "no %s dummies; masking Upgrade\n", str_fn[t] ); } - if ((chan->ops[t] & (OP_NEW | OP_UPGRADE)) || any_new[t] || any_upgrades[t]) { + if ((chan->ops[t] & (OP_OLD | OP_NEW | OP_UPGRADE)) || any_old[t] || any_new[t] || any_upgrades[t]) { opts[t] |= OPEN_APPEND; + if ((chan->ops[t] & OP_OLD) || any_old[t]) { + debug( "resuming %s of %d old message(s)\n", str_hl[t], any_old[t] ); + opts[t^1] |= OPEN_OLD; + if (chan->stores[t]->max_size != UINT_MAX) + opts[t^1] |= OPEN_OLD_SIZE; + } if ((chan->ops[t] & OP_NEW) || any_new[t]) { debug( "resuming %s of %d new message(s)\n", str_hl[t], any_new[t] ); opts[t^1] |= OPEN_NEW; @@ -795,13 +804,13 @@ box_opened2( sync_vars_t *svars, int t ) // The latter would also apply when the expired box is the source, // but it's more natural to treat it as read-only in that case. // OP_UPGRADE makes sense only for legacy S_SKIPPED entries. - if ((chan->ops[N] & (OP_NEW | OP_UPGRADE | OP_FLAGS)) && chan->max_messages) + if ((chan->ops[N] & (OP_OLD | OP_NEW | OP_UPGRADE | OP_FLAGS)) && chan->max_messages) svars->any_expiring = 1; if (svars->any_expiring) { opts[N] |= OPEN_PAIRED | OPEN_FLAGS; if (any_dummies[N]) opts[F] |= OPEN_PAIRED | OPEN_FLAGS; - else if (chan->ops[N] & (OP_NEW | OP_UPGRADE)) + else if (chan->ops[N] & (OP_OLD | OP_NEW | OP_UPGRADE)) opts[F] |= OPEN_FLAGS; } svars->opts[F] = svars->drv[F]->prepare_load_box( ctx[F], opts[F] ); @@ -1197,37 +1206,60 @@ box_loaded( int sts, message_t *msgs, int total_msgs, int recent_msgs, void *aux if (srec->status & S_SKIPPED) { // Pre-1.4 legacy only: The message was skipped due to being too big. - if (!(svars->chan->ops[t] & OP_UPGRADE)) + if (!(svars->chan->ops[t] & OP_UPGRADE)) // OP_OLD would be somewhat logical, too. continue; // The message size was not queried, so this won't be dummified below. srec->status = S_PENDING | S_DUMMY(t); JLOG( "_ %u %u", (srec->uid[F], srec->uid[N]), "placeholder only - was previously skipped" ); } else { - if (!(svars->chan->ops[t] & OP_NEW) && !(srec->status & S_UPGRADE)) - continue; - if (!(srec->status & S_PENDING)) - continue; // Nothing to do - the message is paired or expired - // Propagation was scheduled, but we got interrupted - debug( "unpropagated old message %u\n", tmsg->uid ); - - if (srec->status & S_UPGRADE) { - if (((svars->chan->ops[t] & OP_EXPUNGE) && - ((srec->pflags | srec->aflags[t]) & ~srec->dflags[t] & F_DELETED)) || - ((svars->chan->ops[t^1] & OP_EXPUNGE) && - ((srec->msg[t^1]->flags | srec->aflags[t^1]) & ~srec->dflags[t^1] & F_DELETED))) { - // We can't just kill the entry, as we may be propagating flags - // (in particular, F_DELETED) towards the real message. - // No dummy is actually present, but pretend there is, so the - // real message is considered new when trashing. - srec->status = (srec->status & ~(S_PENDING | S_UPGRADE)) | S_DUMMY(t); - JLOG( "~ %u %u %d", (srec->uid[F], srec->uid[N], srec->status & S_LOGGED), - "canceling placeholder upgrade - would be expunged anyway" ); + if (!(srec->status & S_PENDING)) { + if (srec->uid[t]) + continue; // Nothing to do - the message is paired + if (!(svars->chan->ops[t] & OP_OLD)) { + // This was reported as 'no ' already. + // debug( "not re-propagating orphaned message %u\n", tmsg->uid ); + continue; + } + if (t == F || !(srec->status & S_EXPIRED)) { + // Orphans are essentially deletion propagation transactions which + // were interrupted midway through by not expunging the target. We + // don't re-propagate these, as it would be illogical, and also + // make a mess of placeholder upgrades. + debug( "ignoring orphaned message %u\n", tmsg->uid ); + continue; + } + if ((!(tmsg->flags & F_FLAGGED) && + ((tmsg->flags & F_SEEN) || svars->chan->expire_unread > 0))) { + debug( "not re-propagating tracked expired message %u\n", tmsg->uid ); + continue; + } + assert( !(srec->status & S_LOGGED) ); + srec->status |= S_PENDING; + JLOG( "~ %u %u " stringify(S_PENDING), (srec->uid[F], srec->uid[N]), + "re-propagate tracked expired message" ); + } else { + // Propagation was scheduled, but we got interrupted + debug( "unpropagated old message %u\n", tmsg->uid ); + + if (srec->status & S_UPGRADE) { + if (((svars->chan->ops[t] & OP_EXPUNGE) && + ((srec->pflags | srec->aflags[t]) & ~srec->dflags[t] & F_DELETED)) || + ((svars->chan->ops[t^1] & OP_EXPUNGE) && + ((srec->msg[t^1]->flags | srec->aflags[t^1]) & ~srec->dflags[t^1] & F_DELETED))) { + // We can't just kill the entry, as we may be propagating flags + // (in particular, F_DELETED) towards the real message. + // No dummy is actually present, but pretend there is, so the + // real message is considered new when trashing. + srec->status = (srec->status & ~(S_PENDING | S_UPGRADE)) | S_DUMMY(t); + JLOG( "~ %u %u %d", (srec->uid[F], srec->uid[N], srec->status & S_LOGGED), + "canceling placeholder upgrade - would be expunged anyway" ); + continue; + } + // Prevent the driver from "completing" the flags, as we'll ignore them anyway. + tmsg->status |= M_FLAGS; + any_new[t] = 1; continue; } - // Prevent the driver from "completing" the flags, as we'll ignore them anyway. - tmsg->status |= M_FLAGS; - any_new[t] = 1; - continue; } } } else { @@ -1237,16 +1269,35 @@ box_loaded( int sts, message_t *msgs, int total_msgs, int recent_msgs, void *aux if (t == F || tmsg->uid > svars->maxxfuid) topping = 0; - if (!(svars->chan->ops[t] & OP_NEW)) - continue; + const char *what; if (tmsg->uid <= svars->maxuid[t^1]) { // The message should be already paired. It's not, so it was: - // - previously paired, but the entry was expired and pruned => ignore - // - attempted, but failed => ignore (the wisdom of this is debatable) - // - ignored, as it would have been expunged anyway => ignore (even if undeleted) - continue; + // - attempted, but failed + // - ignored, as it would have been expunged anyway + // - paired, but subsequently expired and pruned + if (!(svars->chan->ops[t] & OP_OLD)) { + debug( "not propagating old message %u\n", tmsg->uid ); + continue; + } + if (topping) { + // The message is below the boundary of the bulk range. + // We'll sync it only if it has become important meanwhile. + if (!(tmsg->flags & F_FLAGGED) && + ((tmsg->flags & F_SEEN) || svars->chan->expire_unread > 0)) { + debug( "not re-propagating untracked expired message %u\n", tmsg->uid ); + continue; + } + what = "untracked expired message"; + } else { + what = "old message"; + } + } else { + if (!(svars->chan->ops[t] & OP_NEW)) { + debug( "not propagating new message %u\n", tmsg->uid ); + continue; + } + what = "new message"; } - debug( "new message %u\n", tmsg->uid ); srec = nfzalloc( sizeof(*srec) ); *svars->srecadd = srec; @@ -1258,7 +1309,7 @@ box_loaded( int sts, message_t *msgs, int total_msgs, int recent_msgs, void *aux tmsg->srec = srec; if (svars->newmaxuid[t^1] < tmsg->uid) svars->newmaxuid[t^1] = tmsg->uid; - JLOG( "+ %u %u", (srec->uid[F], srec->uid[N]), "fresh" ); + JLOG( "+ %u %u", (srec->uid[F], srec->uid[N]), "%s", what ); } if (((svars->chan->ops[t] | svars->chan->ops[t^1]) & OP_EXPUNGE) && (tmsg->flags & F_DELETED)) { // Yes, we may nuke fresh entries, created only for newmaxuid tracking. diff --git a/src/sync.h b/src/sync.h index 61bc813..27a719f 100644 --- a/src/sync.h +++ b/src/sync.h @@ -16,6 +16,7 @@ BIT_ENUM( OP_NEW, + OP_OLD, OP_UPGRADE, OP_GONE, OP_FLAGS, @@ -38,7 +39,8 @@ BIT_ENUM( XOP_REMOVE_NOOP, ) -#define OP_MASK_TYPE (OP_NEW | OP_UPGRADE | OP_GONE | OP_FLAGS) // Asserted in the target side ops +#define OP_DFLT_TYPE (OP_NEW | OP_UPGRADE | OP_GONE | OP_FLAGS) +#define OP_MASK_TYPE (OP_DFLT_TYPE | OP_OLD) // Asserted in the target side ops #define XOP_MASK_DIR (XOP_PUSH | XOP_PULL) DECL_BIT_FORMATTER_FUNCTION(ops, OP)