2 # Copyright (C) 2014, Eric Wong <normalperson@yhbt.net> and all contributors
3 # License: AGPLv3 or later (https://www.gnu.org/licenses/agpl-3.0.txt)
5 # We focus on the lowest common denominators here:
6 # - targeted at text-only console browsers (lynx, w3m, etc..)
7 # - Only basic HTML, CSS only for line-wrapping <pre> text content for GUIs
8 # - No JavaScript, graphics or icons allowed.
9 # - Must not rely on static content
10 # - UTF-8 is only for user-content, 7-bit US-ASCII for us
15 use CGI qw(:cgi -nosticky); # PSGI/FastCGI/mod_perl compat
16 use PublicInbox::Config;
17 use URI::Escape qw(uri_escape_utf8 uri_unescape);
18 our $LISTNAME_RE = qr!\A/([\w\.\-]+)!;
21 $pi_config = PublicInbox::Config->new;
22 # TODO: detect and reload config as needed
28 if ($ENV{PI_PLACKUP}) {
31 # some servers (Ruby webrick) include scheme://host[:port] here,
32 # which confuses CGI.pm when generating self_url.
33 # RFC 3875 does not mention REQUEST_URI at all,
34 # so nuke it since CGI.pm functions without it.
35 delete $ENV{REQUEST_URI};
37 my $ret = main($req, $req->request_method);
39 if (@ARGV && $ARGV[0] eq 'static') {
46 # private functions below
49 my ($cgi, $method) = @_;
51 if ($method !~ /\AGET|HEAD\z/) {
52 return r(405, 'Method Not Allowed');
54 my $path_info = $cgi->path_info;
56 # top-level indices and feeds
57 if ($path_info eq '/') {
59 } elsif ($path_info =~ m!$LISTNAME_RE\z!o) {
60 invalid_list(\%ctx, $1) || redirect_list_index(\%ctx, $cgi);
61 } elsif ($path_info =~ m!$LISTNAME_RE(?:/|/index\.html)?\z!o) {
62 invalid_list(\%ctx, $1) || get_index(\%ctx, $cgi, 0);
63 } elsif ($path_info =~ m!$LISTNAME_RE/atom\.xml\z!o) {
64 invalid_list(\%ctx, $1) || get_atom(\%ctx, $cgi, 0);
66 # single-message pages
67 } elsif ($path_info =~ m!$LISTNAME_RE/m/(\S+)\.txt\z!o) {
68 invalid_list_mid(\%ctx, $1, $2) || get_mid_txt(\%ctx, $cgi);
69 } elsif ($path_info =~ m!$LISTNAME_RE/m/(\S+)\.html\z!o) {
70 invalid_list_mid(\%ctx, $1, $2) || get_mid_html(\%ctx, $cgi);
73 } elsif ($path_info =~ m!$LISTNAME_RE/f/(\S+)\.html\z!o) {
74 invalid_list_mid(\%ctx, $1, $2) || get_full_html(\%ctx, $cgi);
76 # convenience redirects, order matters
77 } elsif ($path_info =~ m!$LISTNAME_RE/(?:m|f)/(\S+)\z!o) {
78 invalid_list_mid(\%ctx, $1, $2) || redirect_mid(\%ctx, $cgi);
85 sub r404 { r(404, 'Not Found') }
87 # simple response for errors
88 sub r { [ $_[0], ['Content-Type' => 'text/plain'], [ join(' ', @_, "\n") ] ] }
90 # returns undef if valid, array ref response if invalid
92 my ($ctx, $listname) = @_;
93 my $git_dir = $pi_config->get($listname, "mainrepo");
94 if (defined $git_dir) {
95 $ctx->{git_dir} = $git_dir;
96 $ctx->{listname} = $listname;
102 # returns undef if valid, array ref response if invalid
103 sub invalid_list_mid {
104 my ($ctx, $listname, $mid) = @_;
105 my $ret = invalid_list($ctx, $listname, $mid);
106 $ctx->{mid} = uri_unescape($mid) unless $ret;
110 # /$LISTNAME/atom.xml -> Atom feed, includes replies
112 my ($ctx, $cgi, $top) = @_;
113 require PublicInbox::Feed;
114 [ 200, [ 'Content-Type' => 'application/xml' ],
115 [ PublicInbox::Feed->generate({
116 git_dir => $ctx->{git_dir},
117 listname => $ctx->{listname},
118 pi_config => $pi_config,
125 # /$LISTNAME/?r=$GIT_COMMIT -> HTML only
127 my ($ctx, $cgi, $top) = @_;
128 require PublicInbox::Feed;
129 [ 200, [ 'Content-Type' => 'text/html' ],
130 [ PublicInbox::Feed->generate_html_index({
131 git_dir => $ctx->{git_dir},
132 listname => $ctx->{listname},
133 pi_config => $pi_config,
140 # just returns a string ref for the blob in the current ctx
143 local $ENV{GIT_DIR} = $ctx->{git_dir};
145 my $hex = Digest::SHA::sha1_hex($ctx->{mid});
146 $hex =~ /\A([a-f0-9]{2})([a-f0-9]{38})\z/i or
147 die "BUG: not a SHA-1 hex: $hex";
148 my $blob = `git cat-file blob HEAD:$1/$2 2>/dev/null`;
149 $? == 0 ? \$blob : undef;
152 # /$LISTNAME/m/$MESSAGE_ID.txt -> raw original
154 my ($ctx, $cgi) = @_;
155 my $x = mid2blob($ctx);
156 $x ? [ 200, [ 'Content-Type' => 'text/plain' ], [ $$x ] ] : r404();
159 # /$LISTNAME/m/$MESSAGE_ID.html -> HTML content (short quotes)
161 my ($ctx, $cgi) = @_;
162 my $x = mid2blob($ctx);
163 return r404() unless $x;
165 require PublicInbox::View;
166 my $mid_href = PublicInbox::Hval::ascii_html(
167 uri_escape_utf8($ctx->{mid}));
168 my $pfx = "../f/$mid_href.html";
170 [ 200, [ 'Content-Type' => 'text/html' ],
171 [ PublicInbox::View->as_html(Email::MIME->new($$x), $pfx) ] ];
174 # /$LISTNAME/f/$MESSAGE_ID.html -> HTML content (fullquotes)
176 my ($ctx, $cgi) = @_;
177 my $x = mid2blob($ctx);
178 return r404() unless $x;
179 require PublicInbox::View;
181 [ 200, [ 'Content-Type' => 'text/html' ],
182 [ PublicInbox::View->as_html(Email::MIME->new($$x))] ];
185 sub redirect_list_index {
186 my ($ctx, $cgi) = @_;
187 do_redirect($cgi->self_url . "/");
191 my ($ctx, $cgi) = @_;
192 my $url = $cgi->self_url;
194 do_redirect($url . '.html');
200 [ Location => $url, 'Content-Type' => 'text/plain' ],
201 [ "Redirecting to $url\n" ]
206 # preload so we are CoW friendly
207 require PublicInbox::Feed;
208 require PublicInbox::View;
209 require Mail::Thread;
212 require XML::Atom::SimpleFeed;
213 require Plack::Request;
214 eval { require Git }; # optional
216 my $req = Plack::Request->new(@_);
217 main($req, $req->method);
223 my ($status, $headers, $body) = @$ret;
226 301 => 'Moved Permanently',
228 405 => 'Method Not Allowed',
231 print "Status: $status $codes{$status}\r\n";
233 while (my ($k, $v) = splice(@tmp, 0, 2)) {
236 print "\r\n", $body->[0];