# We focus on the lowest common denominators here:
# - targeted at text-only console browsers (w3m, links, etc..)
# - Only basic HTML, CSS only for line-wrapping <pre> text content for GUIs
+# and diff/syntax-highlighting (optional)
# - No JavaScript, graphics or icons allowed.
# - Must not rely on static content
# - UTF-8 is only for user-content, 7-bit US-ASCII for us
use PublicInbox::MID qw(mid_escape);
require PublicInbox::Git;
use PublicInbox::GitHTTPBackend;
+use PublicInbox::UserContent;
# TODO: consider a routing tree now that we have more endpoints:
our $INBOX_RE = qr!\A/([\w\-][\w\.\-]*)!;
our $MID_RE = qr!([^/]+)!;
our $END_RE = qr!(T/|t/|t\.mbox(?:\.gz)?|t\.atom|raw|)!;
our $ATTACH_RE = qr!(\d[\.\d]*)-([[:alnum:]][\w\.-]+[[:alnum:]])!i;
+our $OID_RE = qr![a-f0-9]{7,40}!;
sub new {
my ($class, $pi_config) = @_;
r301($ctx, $1, $2);
} elsif ($path_info =~ m!$INBOX_RE/_/text(?:/(.*))?\z!o) {
get_text($ctx, $1, $2);
-
+ } elsif ($path_info =~ m!$INBOX_RE/([\w\-\.]+)\.css\z!o) {
+ get_css($ctx, $1, $2);
+ } elsif ($path_info =~ m!$INBOX_RE/($OID_RE)/s/\z!o) {
+ get_vcs_object($ctx, $1, $2);
+ } elsif ($path_info =~ m!$INBOX_RE/($OID_RE)/s/([\w\.\-]+)\z!o) {
+ get_vcs_object($ctx, $1, $2, $3);
+ } elsif ($path_info =~ m!$INBOX_RE/($OID_RE)/s\z!o) {
+ r301($ctx, $1, $2, 's/');
# convenience redirects order matters
} elsif ($path_info =~ m!$INBOX_RE/([^/]{2,})\z!o) {
r301($ctx, $1, $2);
# for CoW-friendliness, MOOOOO!
sub preload {
+ my ($self) = @_;
require PublicInbox::Feed;
require PublicInbox::View;
require PublicInbox::SearchThread;
PublicInbox::NewsWWW)) {
eval "require $_;";
}
+ if (ref($self)) {
+ $self->stylesheets_prepare($_) for ('', '../', '../../');
+ }
}
# private functions below
PublicInbox::WwwText::get_text($ctx, $key);
}
+# show git objects (blobs and commits)
+# /$INBOX/_/$OBJECT_ID/show
+# /$INBOX/_/${OBJECT_ID}_${FILENAME}
+# KEY may contain slashes
+sub get_vcs_object ($$$;$) {
+ my ($ctx, $inbox, $oid, $filename) = @_;
+ my $r404 = invalid_inbox($ctx, $inbox);
+ return $r404 if $r404;
+ require PublicInbox::ViewVCS;
+ PublicInbox::ViewVCS::show($ctx, $oid, $filename);
+}
+
sub ctx_get {
my ($ctx, $key) = @_;
my $val = $ctx->{$key};
PublicInbox::WwwAttach::get_attach($ctx, $idx, $fn);
}
+# User-generated content (UGC) may have excessively long lines
+# and screw up rendering on some browsers, so we use pre-wrap.
+#
+# We also force everything to the same scaled font-size because GUI
+# browsers (tested both Firefox and surf (webkit)) uses a larger font
+# for the Search <form> element than the rest of the page. Font size
+# uniformity is important to people who rely on gigantic fonts.
+# Finally, we use monospace to ensure the Search field and button
+# has the same size and spacing as everything else which is
+# <pre>-formatted anyways.
+our $STYLE = 'pre{white-space:pre-wrap}*{font-size:100%;font-family:monospace}';
+
+sub stylesheets_prepare ($$) {
+ my ($self, $upfx) = @_;
+ my $mini = eval {
+ require CSS::Minifier;
+ sub { CSS::Minifier::minify(input => $_[0]) };
+ } || eval {
+ require CSS::Minifier::XS;
+ sub { CSS::Minifier::XS::minify($_[0]) };
+ } || sub { $_[0] };
+
+ my $css_map = {};
+ my $stylesheets = $self->{pi_config}->{css} || [];
+ my $links = [];
+ my $inline_ok = 1;
+
+ foreach my $s (@$stylesheets) {
+ my $attr = {};
+ local $_ = $s;
+ foreach my $k (qw(media title href)) {
+ if (s/\s*$k='([^']+)'// || s/\s*$k=(\S+)//) {
+ $attr->{$k} = $1;
+ }
+ }
+
+ if (defined $attr->{href}) {
+ $inline_ok = 0;
+ } else {
+ open(my $fh, '<', $_) or do {
+ warn "failed to open $_: $!\n";
+ next;
+ };
+ my ($key) = (m!([^/]+?)(?:\.css)?\z!i);
+ my $ctime = 0;
+ my $local = do { local $/; <$fh> };
+ if ($local =~ /\S/) {
+ $ctime = sprintf('%x',(stat($fh))[10]);
+ $local = $mini->($local);
+ }
+ $css_map->{$key} = $local;
+ $attr->{href} = "$upfx$key.css?$ctime";
+ if (defined($attr->{title})) {
+ $inline_ok = 0;
+ } elsif (($attr->{media}||'screen') eq 'screen') {
+ $attr->{-inline} = $local;
+ }
+ }
+ push @$links, $attr;
+ }
+
+ my $buf = "<style>$STYLE";
+ if ($inline_ok) {
+ my @ext; # for media=print and whatnot
+ foreach my $attr (@$links) {
+ if (defined(my $str = delete $attr->{-inline})) {
+ $buf .= $str;
+ } else {
+ push @ext, $attr;
+ }
+ }
+ $links = \@ext;
+ }
+ $buf .= '</style>';
+
+ if (@$links) {
+ foreach my $attr (@$links) {
+ delete $attr->{-inline};
+ $buf .= "<link\ntype=text/css\nrel=stylesheet";
+ while (my ($k, $v) = each %$attr) {
+ $v = qq{"$v"} if $v =~ /[\s=]/;
+ $buf .= qq{\n$k=$v};
+ }
+ $buf .= ' />';
+ }
+ $self->{"-style-$upfx"} = $buf;
+ } else {
+ $self->{-style_inline} = $buf;
+ }
+ $self->{-css_map} = $css_map;
+}
+
+# returns an HTML fragment with <style> or <link> tags in them
+# Called by WwwStream by nearly every HTML page
+sub style {
+ my ($self, $upfx) = @_;
+ $self->{-style_inline} || $self->{"-style-$upfx"} || do {
+ stylesheets_prepare($self, $upfx);
+ $self->{-style_inline} || $self->{"-style-$upfx"}
+ };
+}
+
+# /$INBOX/$KEY.css endpoint
+# CSS is configured globally for all inboxes, but we access them on
+# a per-inbox basis. This allows administrators to setup per-inbox
+# static routes to intercept the request before it hits PSGI
+sub get_css ($$$) {
+ my ($ctx, $inbox, $key) = @_;
+ my $r404 = invalid_inbox($ctx, $inbox);
+ return $r404 if $r404;
+ my $self = $ctx->{www};
+ my $css_map = $self->{-css_map} || stylesheets_prepare($self, '');
+ my $css = $css_map->{$key};
+ if (!defined($css) && $key eq 'userContent') {
+ my $env = $ctx->{env};
+ $css = PublicInbox::UserContent::sample($ctx->{-inbox}, $env);
+ }
+ defined $css or return r404();
+ my $h = [ 'Content-Length', bytes::length($css),
+ 'Content-Type', 'text/css' ];
+ PublicInbox::GitHTTPBackend::cache_one_year($h);
+ [ 200, $h, [ $css ] ];
+}
+
1;