skeleton CLI support

[catagits/Web-Simple.git] / lib / Web / Simple / Application.pm

diff --git a/lib/Web/Simple/Application.pm b/lib/Web/Simple/Application.pm
index e11eef7..3bdbd97 100644 (file)
--- a/lib/Web/Simple/Application.pm
+++ b/lib/Web/Simple/Application.pm
@@ -27,7 +27,7 @@ use warnings FATAL => 'all';
     my ($self, $env, @args) = @_;
     my $next = $self->_has_match ? $self->next : undef;
     if (my ($env_delta, @match) = $self->_match_against($env)) {
-      if (my ($result) = $self->_execute_with(@args, @match)) {
+      if (my ($result) = $self->_execute_with(@args, @match, $env)) {
         if ($self->_is_dispatcher($result)) {
           $next = $result->set_next($next);
           $env = { %$env, %$env_delta };
@@ -61,7 +61,25 @@ use warnings FATAL => 'all';
 sub new {
   my ($class, $data) = @_;
   my $config = { $class->_default_config, %{($data||{})->{config}||{}} };
-  bless({ config => $config }, $class);
+  my $new = bless({ config => $config }, $class);
+  $new->BUILDALL($data);
+  $new;
+}
+
+sub BUILDALL {
+  my ($self, $data) = @_;
+  my $targ = ref($self);
+  my @targ;
+  while ($targ->isa(__PACKAGE__) and $targ ne __PACKAGE__) {
+    push(@targ, "${targ}::BUILD")
+      if do { no strict 'refs'; defined *{"${targ}::BUILD"}{CODE} };
+    my @targ_isa = do { no strict 'refs'; @{"${targ}::ISA"} };
+    die "${targ} uses Multiple Inheritance: ISA is: ".join ', ', @targ_isa
+      if @targ_isa > 1;
+    $targ = $targ_isa[0];
+  }
+  $self->$_($data) for reverse @targ;
+  return;
 }
 
 sub _setup_default_config {
@@ -149,14 +167,14 @@ sub _construct_subdispatch {
     my $chain = $class->_build_dispatch_chain(@res);
     return $class->_build_dispatcher({
       call => sub {
-        my ($d, $self, $env) = (shift, shift, shift);
+        my ($d, $self, $env) = (shift, shift, shift); pop; # lose trailing $env
         return $chain->dispatch($env, $self, @_);
       }
     });
   });
   return $class->_build_dispatcher({
     call => sub {
-      my ($d, $self, $env) = (shift, shift, shift);
+      my ($d, $self, $env) = (shift, shift, shift); pop; # lose trailing $env
       my @sub = $disp->dispatch($env, $self, @_);
       return @sub if @sub;
       return unless (my $next = $d->next);
@@ -171,9 +189,9 @@ sub _build_dispatcher_from_spec {
   my $proto = prototype $spec;
   my $parser = $class->_build_dispatch_parser;
   my $matcher = (
-    defined($proto)
+    defined($proto) && length($proto)
       ? $parser->parse_dispatch_specification($proto)
-      : undef
+      : sub { ({}, $_[1]) }
   );
   return $class->_build_dispatcher({
     match => $matcher,
@@ -202,8 +220,8 @@ sub _build_final_dispatcher {
   shift->_build_dispatcher({
     call => sub {
       [
-        500, [ 'Content-type', 'text/plain' ],
-        [ 'The management apologises but we have no idea how to handle that' ]
+        404, [ 'Content-type', 'text/plain' ],
+        [ 'Not found' ]
       ]
     }
   })
@@ -223,34 +241,62 @@ sub _run_with_self {
 }
 
 sub run_if_script {
-  return 1 if caller(1); # 1 so we can be the last thing in the file
-  my $class = shift;
-  my $self = $class->new;
+  # ->as_psgi_app is true for require() but also works for plackup
+  return $_[0]->as_psgi_app if caller(1);
+  my $self = ref($_[0]) ? $_[0] : $_[0]->new;
   $self->run(@_);
 }
 
 sub _run_cgi {
   my $self = shift;
-  require Web::Simple::HackedPlack;
-  Plack::Server::CGI->run(sub { $self->_dispatch(@_) });
+  require Plack::Server::CGI;
+  Plack::Server::CGI->run($self->as_psgi_app);
+}
+
+sub _run_fcgi {
+  my $self = shift;
+  require Plack::Server::FCGI;
+  Plack::Server::FCGI->run($self->as_psgi_app);
+}
+
+sub as_psgi_app {
+  my $self = shift;
+  ref($self) ? sub { $self->_dispatch(@_) } : sub { $self->new->_dispatch(@_) }
 }
 
 sub run {
   my $self = shift;
-  if ($ENV{GATEWAY_INTERFACE}) {
+  if ($ENV{PHP_FCGI_CHILDREN} || $ENV{FCGI_ROLE} || $ENV{FCGI_SOCKET_PATH}) {
+    return $self->_run_fcgi;
+  } elsif ($ENV{GATEWAY_INTERFACE}) {
     return $self->_run_cgi;
   }
-  my $path = shift(@ARGV) or die "No path passed - use $0 / for root";
+  unless (@ARGV && $ARGV[0] =~ m{^/}) {
+    return $self->_run_cli;
+  }
+
+  my $path = shift @ARGV;
 
-  require HTTP::Request::AsCGI;
   require HTTP::Request::Common;
+  require Plack::Test;
   local *GET = \&HTTP::Request::Common::GET;
 
   my $request = GET($path);
-  my $c = HTTP::Request::AsCGI->new($request)->setup;
-  $self->_run_cgi;
-  $c->restore;
-  print $c->response->as_string;
+  my $response;
+  Plack::Test::test_psgi($self->as_psgi_app, sub { $response = shift->($request) });
+  print $response->as_string;
+}
+
+sub _run_cli {
+  my $self = shift;
+  die $self->_cli_usage;
+}
+
+sub _cli_usage {
+  "To run this script in CGI test mode, pass a URL path beginning with /:\n".
+  "\n".
+  "  $0 /some/path\n".
+  "  $0 /\n"
 }
 
 1;