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Serve directories and symlinks correctly

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This commit is contained in:
Eelco Dolstra 2017-11-14 17:15:05 +01:00
parent 100249c066
commit 7857f83251
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GPG key ID: 8170B4726D7198DE
2 changed files with 61 additions and 18 deletions
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76
src/lib/Hydra/Controller/Build.pm
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@ -15,6 +15,7 @@ use Nix::Config;
use List::MoreUtils qw(all);
use Encode;
use MIME::Types;
use JSON::PP;
sub buildChain :Chained('/') :PathPart('build') :CaptureArgs(1) {
@ -187,6 +188,53 @@ sub checkPath {
}
sub serveFile {
my ($c, $path) = @_;
my $res = run(cmd => ["nix", "ls-store", "--store", getStoreUri(), "--json", "$path"]);
if ($res->{status}) {
notFound($c, "File '$path' does not exist.") if $res->{stderr} =~ /does not exist/;
die "$res->{stderr}\n";
}
my $ls = decode_json($res->{stdout});
if ($ls->{type} eq "directory" && substr($c->request->uri, -1) ne "/") {
return $c->res->redirect($c->request->uri . "/");
}
elsif ($ls->{type} eq "directory" && defined $ls->{entries}->{"index.html"}) {
return serveFile($c, "$path/index.html");
}
elsif ($ls->{type} eq "symlink") {
my $target = $ls->{target};
return serveFile($c, substr($target, 0, 1) eq "/" ? $target : dirname($path) . "/" . $target);
}
elsif ($ls->{type} eq "regular") {
$c->stash->{'plain'} = { data => grab(cmd => ["nix", "cat-store", "--store", getStoreUri(), "$path"]) };
# Detect MIME type. Borrowed from Catalyst::Plugin::Static::Simple.
my $type = "text/plain";
if ($path =~ /.*\.(\S{1,})$/xms) {
my $ext = $1;
my $mimeTypes = MIME::Types->new(only_complete => 1);
my $t = $mimeTypes->mimeTypeOf($ext);
$type = ref $t ? $t->type : $t if $t;
}
$c->response->content_type($type);
$c->forward('Hydra::View::Plain');
}
else {
error($c, "Do not know how to serve path '$path'.");
}
}
sub download : Chained('buildChain') PathPart {
my ($self, $c, $productRef, @path) = @_;
@ -202,7 +250,7 @@ sub download : Chained('buildChain') PathPart {
notFound($c, "Build doesn't have a product $productRef.") if !defined $product;
if ($product->path !~ /^($Nix::Config::storeDir\/[^\/]+)/) {
die "Invalid store path " . $product->path . ".\n";
die "Invalid store path '" . $product->path . "'.\n";
}
my $storePath = $1;
@ -215,7 +263,7 @@ sub download : Chained('buildChain') PathPart {
# Security paranoia.
foreach my $elem (@path) {
error($c, "Invalid filename $elem.") if $elem !~ /^$pathCompRE$/;
error($c, "Invalid filename '$elem'.") if $elem !~ /^$pathCompRE$/;
}
my $path = $product->path;
@ -223,7 +271,7 @@ sub download : Chained('buildChain') PathPart {
if (isLocalStore) {
notFound($c, "File " . $product->path . " does not exist.") unless -e $product->path;
notFound($c, "File '" . $product->path . "' does not exist.") unless -e $product->path;
# Make sure the file is in the Nix store.
$path = checkPath($self, $c, $path);
@ -235,26 +283,17 @@ sub download : Chained('buildChain') PathPart {
$path = "$path/index.html" if -d $path && -e "$path/index.html";
notFound($c, "File $path does not exist.") if !-e $path;
notFound($c, "File '$path' does not exist.") if !-e $path;
notFound($c, "Path $path is a directory.") if -d $path;
notFound($c, "Path '$path' is a directory.") if -d $path;
$c->serve_static_file($path);
$c->response->headers->last_modified($c->stash->{build}->stoptime);
} else {
$c->stash->{'plain'} = { data => readNixFile($path) };
# Detect MIME type. Borrowed from Catalyst::Plugin::Static::Simple.
my $type = "text/plain";
if ($path =~ /.*\.(\S{1,})$/xms) {
my $ext = $1;
my $mimeTypes = MIME::Types->new(only_complete => 1);
my $t = $mimeTypes->mimeTypeOf($ext);
$type = ref $t ? $t->type : $t if $t;
}
$c->response->content_type($type);
$c->forward('Hydra::View::Plain');
serveFile($c, $path);
}
$c->response->headers->last_modified($c->stash->{build}->stoptime);
}
@ -308,9 +347,12 @@ sub contents : Chained('buildChain') PathPart Args(1) {
# FIXME: don't use shell invocations below.
# FIXME: use nix cat-store
my $res;
if ($product->type eq "nix-build" && -d $path) {
# FIXME: use nix ls-store -R --json
$res = `cd '$path' && find . -print0 | xargs -0 ls -ld --`;
error($c, "`ls -lR' error: $?") if $? != 0;

3
src/lib/Hydra/View/Plain.pm
View file

@ -6,7 +6,8 @@ use base 'Catalyst::View::Download::Plain';
sub process {
my ($self, $c) = @_;
$c->response->content_type('text/plain; charset=utf-8') unless $c->response->content_type() ne "";
$c->clear_encoding;
$c->response->content_type('text/plain; charset=utf-8') if $c->response->content_type() eq "text/plain";
$c->response->body($c->stash->{plain}->{data});
}