Simplify madness some more, back to how it looked in the original fix_path_info_decod...

[catagits/Catalyst-Runtime.git] / lib / Catalyst / Engine / CGI.pm

diff --git a/lib/Catalyst/Engine/CGI.pm b/lib/Catalyst/Engine/CGI.pm
index 8416e09..da95c6c 100644 (file)
--- a/lib/Catalyst/Engine/CGI.pm
+++ b/lib/Catalyst/Engine/CGI.pm
@@ -85,6 +85,7 @@ sub prepare_connection {
     if ( $ENV{SERVER_PORT} == 443 ) {
         $request->secure(1);
     }
+    binmode(STDOUT); # Ensure we are sending bytes.
 }
 
 =head2 $self->prepare_headers($c)
@@ -107,6 +108,8 @@ sub prepare_headers {
 
 =cut
 
+# Please don't touch this method without adding tests in
+# t/aggregate/unit_core_engine_cgi-prepare_path.t
 sub prepare_path {
     my ( $self, $c ) = @_;
     local (*ENV) = $self->env || \%ENV;
@@ -114,13 +117,16 @@ sub prepare_path {
     my $scheme = $c->request->secure ? 'https' : 'http';
     my $host      = $ENV{HTTP_HOST}   || $ENV{SERVER_NAME};
     my $port      = $ENV{SERVER_PORT} || 80;
+    my $script_name = $ENV{SCRIPT_NAME};
+    $script_name =~ s/([^$URI::uric])/$URI::Escape::escapes{$1}/go if $script_name;
+
     my $base_path;
     if ( exists $ENV{REDIRECT_URL} ) {
         $base_path = $ENV{REDIRECT_URL};
-        $base_path =~ s/$ENV{PATH_INFO}$//;
+        $base_path =~ s/\Q$ENV{PATH_INFO}\E$//;
     }
     else {
-        $base_path = $ENV{SCRIPT_NAME} || '/';
+        $base_path = $script_name || '/';
     }
 
     # If we are running as a backend proxy, get the true hostname
@@ -142,8 +148,24 @@ sub prepare_path {
         }
     }
 
+    my $path_info   = $ENV{PATH_INFO};
+    if ($c->config->{use_request_uri_for_path}) {
+        # RFC 3875: "Unlike a URI path, the PATH_INFO is not URL-encoded,
+        # and cannot contain path-segment parameters." This means PATH_INFO
+        # is always decoded, and the script can't distinguish / vs %2F.
+        # See https://issues.apache.org/bugzilla/show_bug.cgi?id=35256
+        # Here we try to resurrect the original encoded URI from REQUEST_URI.
+        if (my $req_uri = $ENV{REQUEST_URI}) {
+            if (defined $script_name) {
+                $req_uri =~ s/^\Q$script_name\E//;
+            }
+            $req_uri =~ s/\?.*$//;
+            $path_info = $req_uri if $req_uri;
+        }
+    }
+
     # set the request URI
-    my $path = $base_path . ( $ENV{PATH_INFO} || '' );
+    my $path = $base_path . ( $path_info || '' );
     $path =~ s{^/+}{};
 
     # Using URI directly is way too slow, so we construct the URLs manually
@@ -163,7 +185,7 @@ sub prepare_path {
     my $query = $ENV{QUERY_STRING} ? '?' . $ENV{QUERY_STRING} : '';
     my $uri   = $scheme . '://' . $host . '/' . $path . $query;
 
-    $c->request->uri( bless \$uri, $uri_class );
+    $c->request->uri( bless(\$uri, $uri_class)->canonical );
 
     # set the base URI
     # base must end in a slash