Neologism/ContentNegotiation

From SIOC Wiki

We'll need to support content negotiation in our module in Drupal. Here some stuff.

Contents 1 Ideas 2 PHP Info 3 Drupal Info 4 Implementation 4.1 Basic idea 4.2 Basic patch in Drupal

[edit] Ideas

• As httpRange-14 says, and according with our URI scheme, we should have something like:
  • URI with content negotiation: http://example.com/neologism/bowling#
  • HTML without content negotiation: http://example.com/neologism/bowling/html
  • RDF without content negotiation: http://example.com/neologism/bowling/rdfs

[edit] PHP Info

• http
• header()
• content negotiation lib

[edit] Drupal Info

• API
• object reference
• node_view()
• arg
• hook_menu()
• path.inc
• path module
• pathauto, a new module to generate path aliases

More information in Drupal.

[edit] Implementation

[edit] Basic idea

Here some pseudo-code:

$accept = $_SERVER["HTTP_ACCEPT"];
$uri = $_SERVER["REQUEST_URI"];

$preferred = getPreferredContent($accept);
if ($preferred == "application/rdf+xml")
  $newuri = $uri . "/rdfs";
else
  $newuri = $uri . "/html";

header("HTTP/1.1 303");
header("Location: " . $newuri);

FIXME:: Richard prefers use something similar to the way that mod_content works.

[edit] Basic patch in Drupal

Something like:

Index: modules/node/node.module
===================================================================
--- modules/node/node.module	(revision 14)
+++ modules/node/node.module	(working copy)
@@ -685,6 +685,10 @@
  */
 function node_view($node, $teaser = FALSE, $page = FALSE, $links = TRUE) {
   $node = (object)$node;
+  
+  if ($node->type == "vocabulary") {
+    //apply here our patches
+  }
 
   $node = node_build_content($node, $teaser, $page);