* [PATCH 04/11] ds: support greeting protocols
2022-07-23 4:41 7% [PATCH 00/11] IMAP, NNTP, POP3 golfing Eric Wong
@ 2022-07-23 4:41 5% ` Eric Wong
0 siblings, 0 replies; 2+ results
From: Eric Wong @ 2022-07-23 4:41 UTC (permalink / raw)
To: meta
We can share some common code between IMAP, NNTP, and POP3
without too much trouble, so cut down our LoC.
---
lib/PublicInbox/DS.pm | 18 ++++++++++++++++++
lib/PublicInbox/IMAP.pm | 23 ++++-------------------
lib/PublicInbox/NNTP.pm | 25 +++++--------------------
lib/PublicInbox/POP3.pm | 23 ++++-------------------
4 files changed, 31 insertions(+), 58 deletions(-)
diff --git a/lib/PublicInbox/DS.pm b/lib/PublicInbox/DS.pm
index bf8c4466..79f7046f 100644
--- a/lib/PublicInbox/DS.pm
+++ b/lib/PublicInbox/DS.pm
@@ -347,6 +347,24 @@ retry:
$DescriptorMap{$fd} = $self;
}
+# for IMAP, NNTP, and POP3 which greet clients upon connect
+sub greet {
+ my ($self, $sock) = @_;
+ my $ev = EPOLLIN;
+ my $wbuf;
+ if ($sock->can('accept_SSL') && !$sock->accept_SSL) {
+ return CORE::close($sock) if $! != EAGAIN;
+ $ev = PublicInbox::TLS::epollbit() or return CORE::close($sock);
+ $wbuf = [ \&accept_tls_step, $self->can('do_greet')];
+ }
+ new($self, $sock, $ev | EPOLLONESHOT);
+ if ($wbuf) {
+ $self->{wbuf} = $wbuf;
+ } else {
+ $self->do_greet;
+ }
+ $self;
+}
#####################################################################
### I N S T A N C E M E T H O D S
diff --git a/lib/PublicInbox/IMAP.pm b/lib/PublicInbox/IMAP.pm
index 7e695fd8..89a278c1 100644
--- a/lib/PublicInbox/IMAP.pm
+++ b/lib/PublicInbox/IMAP.pm
@@ -36,7 +36,6 @@ use parent qw(PublicInbox::DS);
use PublicInbox::Eml;
use PublicInbox::EmlContentFoo qw(parse_content_disposition);
use PublicInbox::DS qw(now);
-use PublicInbox::Syscall qw(EPOLLIN EPOLLONESHOT);
use PublicInbox::GitAsyncCat;
use Text::ParseWords qw(parse_line);
use Errno qw(EAGAIN);
@@ -99,29 +98,15 @@ undef %FETCH_NEED;
my $valid_range = '[0-9]+|[0-9]+:[0-9]+|[0-9]+:\*';
$valid_range = qr/\A(?:$valid_range)(?:,(?:$valid_range))*\z/;
-sub greet ($) {
+sub do_greet {
my ($self) = @_;
my $capa = capa($self);
$self->write(\"* OK [$capa] public-inbox-imapd ready\r\n");
}
-sub new ($$$) {
- my ($class, $sock, $imapd) = @_;
- my $self = bless { imapd => $imapd }, 'PublicInbox::IMAP_preauth';
- my $ev = EPOLLIN;
- my $wbuf;
- if ($sock->can('accept_SSL') && !$sock->accept_SSL) {
- return CORE::close($sock) if $! != EAGAIN;
- $ev = PublicInbox::TLS::epollbit() or return CORE::close($sock);
- $wbuf = [ \&PublicInbox::DS::accept_tls_step, \&greet ];
- }
- $self->SUPER::new($sock, $ev | EPOLLONESHOT);
- if ($wbuf) {
- $self->{wbuf} = $wbuf;
- } else {
- greet($self);
- }
- $self;
+sub new {
+ my (undef, $sock, $imapd) = @_;
+ (bless { imapd => $imapd }, 'PublicInbox::IMAP_preauth')->greet($sock)
}
sub logged_in { 1 }
diff --git a/lib/PublicInbox/NNTP.pm b/lib/PublicInbox/NNTP.pm
index e4ca7d14..533a0c59 100644
--- a/lib/PublicInbox/NNTP.pm
+++ b/lib/PublicInbox/NNTP.pm
@@ -29,7 +29,6 @@ use constant {
r225 => "225 Headers follow (multi-line)\r\n",
r430 => '430 No article with that message-id',
};
-use PublicInbox::Syscall qw(EPOLLIN EPOLLONESHOT);
use Errno qw(EAGAIN);
my $ONE_MSGID = qr/\A$MID_EXTRACT\z/;
my @OVERVIEW = qw(Subject From Date Message-ID References);
@@ -47,25 +46,11 @@ HDR\r
OVER\r
COMPRESS DEFLATE\r
-sub greet ($) { $_[0]->write($_[0]->{nntpd}->{greet}) };
-
-sub new ($$$) {
- my ($class, $sock, $nntpd) = @_;
- my $self = bless { nntpd => $nntpd }, $class;
- my $ev = EPOLLIN;
- my $wbuf;
- if ($sock->can('accept_SSL') && !$sock->accept_SSL) {
- return CORE::close($sock) if $! != EAGAIN;
- $ev = PublicInbox::TLS::epollbit() or return CORE::close($sock);
- $wbuf = [ \&PublicInbox::DS::accept_tls_step, \&greet ];
- }
- $self->SUPER::new($sock, $ev | EPOLLONESHOT);
- if ($wbuf) {
- $self->{wbuf} = $wbuf;
- } else {
- greet($self);
- }
- $self;
+sub do_greet ($) { $_[0]->write($_[0]->{nntpd}->{greet}) };
+
+sub new {
+ my ($cls, $sock, $nntpd) = @_;
+ (bless { nntpd => $nntpd }, $cls)->greet($sock)
}
sub args_ok ($$) {
diff --git a/lib/PublicInbox/POP3.pm b/lib/PublicInbox/POP3.pm
index ec73893c..c368615d 100644
--- a/lib/PublicInbox/POP3.pm
+++ b/lib/PublicInbox/POP3.pm
@@ -33,7 +33,6 @@
package PublicInbox::POP3;
use v5.12;
use parent qw(PublicInbox::DS);
-use PublicInbox::Syscall qw(EPOLLIN EPOLLONESHOT);
use PublicInbox::GitAsyncCat;
use PublicInbox::DS qw(now);
use Errno qw(EAGAIN);
@@ -113,29 +112,15 @@ sub long_response ($$;@) {
undef;
}
-sub _greet ($) {
+sub do_greet {
my ($self) = @_;
my $s = $self->{salt} = sprintf('%x.%x', int(rand(0x7fffffff)), time);
$self->write("+OK POP3 server ready <$s\@public-inbox>\r\n");
}
-sub new ($$$) {
- my ($class, $sock, $pop3d) = @_;
- my $self = bless { pop3d => $pop3d }, __PACKAGE__;
- my $ev = EPOLLIN;
- my $wbuf;
- if ($sock->can('accept_SSL') && !$sock->accept_SSL) {
- return CORE::close($sock) if $! != EAGAIN;
- $ev = PublicInbox::TLS::epollbit() or return CORE::close($sock);
- $wbuf = [ \&PublicInbox::DS::accept_tls_step, \&_greet ];
- }
- $self->SUPER::new($sock, $ev | EPOLLONESHOT);
- if ($wbuf) {
- $self->{wbuf} = $wbuf;
- } else {
- _greet($self);
- }
- $self;
+sub new {
+ my ($cls, $sock, $pop3d) = @_;
+ (bless { pop3d => $pop3d }, $cls)->greet($sock)
}
# POP user is $UUID1@$NEWSGROUP.$SLICE
^ permalink raw reply related [relevance 5%]
* [PATCH 00/11] IMAP, NNTP, POP3 golfing
@ 2022-07-23 4:41 7% Eric Wong
2022-07-23 4:41 5% ` [PATCH 04/11] ds: support greeting protocols Eric Wong
0 siblings, 1 reply; 2+ results
From: Eric Wong @ 2022-07-23 4:41 UTC (permalink / raw)
To: meta
More to come, but duplicate code and data structures are
to be eliminated.
Eric Wong (11):
nntp: pass regexp to split() callers
nntp: start adding CRLF to responses natively
nntp: remove more() wrapper
ds: support greeting protocols
ds: move no-op ->zflush to common base class
ds: move requeue_once
nntp: listgroup_range_i: remove useless `map' op
nntp: inline CRLF in all response lines
ds: share long_step between NNTP and IMAP
nntp: resolve inboxes immediately on group listings
imap+nntp: share COMPRESS implementation
MANIFEST | 3 +-
lib/PublicInbox/DS.pm | 72 ++++
.../{NNTPdeflate.pm => DSdeflate.pm} | 15 +-
lib/PublicInbox/IMAP.pm | 102 +----
lib/PublicInbox/IMAPD.pm | 2 +-
lib/PublicInbox/IMAPdeflate.pm | 126 ------
lib/PublicInbox/NNTP.pm | 404 +++++++-----------
lib/PublicInbox/NNTPD.pm | 4 +-
lib/PublicInbox/POP3.pm | 80 +---
t/nntpd.t | 2 +-
xt/mem-imapd-tls.t | 4 +-
11 files changed, 262 insertions(+), 552 deletions(-)
rename lib/PublicInbox/{NNTPdeflate.pm => DSdeflate.pm} (91%)
delete mode 100644 lib/PublicInbox/IMAPdeflate.pm
^ permalink raw reply [relevance 7%]
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