Added meta and acl links and basic tests.

Martin Martinez Rivera · Martin Martinez Rivera · commit b515e85261f5 · 2015-07-19T14:54:44.000-04:00
diff --git a/fileStore.js b/fileStore.js
@@ -5,6 +5,8 @@ var fs = require('fs');
 var path = require('path');
 var S = require('string');
 
+var turtleExtension = ".ttl";
+
 function uriToFilename(uri, base) {
     var filename = path.join(base, uri);
     // Make sure filename ends with '/'  if filename exists and is a directory.
@@ -38,8 +40,20 @@ function uriBase(req) {
     return uriAbs(req) + (req.baseUrl || '');
 }
 
+function getResourceLink(filename, uri, base, suffix, otherSuffix) {
+    var link = filenameToBaseUri(filename, uri, base);
+    if (S(link).endsWith(suffix)) {
+        return link;
+    } else if (S(link).endsWith(otherSuffix)) {
+        return S(link).chompRight(otherSuffix).s + suffix;
+    } else {
+        return link+suffix;
+    }
+}
+
 exports.uriToFilename = uriToFilename;
 exports.uriToRelativeFilename = uriToRelativeFilename;
 exports.filenameToBaseUri = filenameToBaseUri;
 exports.uriAbs = uriAbs;
-exports.uriBase = uriBase;
+exports.uriBase = uriBase;
+exports.getResourceLink = getResourceLink;
diff --git a/handlers/get.js b/handlers/get.js
@@ -52,6 +52,15 @@ function get(req, res, includeBody) {
     }
 
     var filename = file.uriToFilename(req.path, options.root);
+    var baseUri = file.uriBase(req);
+    var aclLink = file.getResourceLink(filename, baseUri,
+                                       options.root, options.suffixAcl,
+                                      metaExtension);
+    var metaLink = file.getResourceLink(filename, baseUri,
+                                        options.root, metaExtension,
+                                       options.suffixAcl);
+    header.addLink(res, aclLink, 'acl');
+    header.addLink(res, metaLink, 'describedBy');
 
     // Check if file exists
     fs.stat(filename, function(err, stats) {
diff --git a/test/http.js b/test/http.js
@@ -4,6 +4,7 @@ var path = require('path');
 var ldnode = require('../index');
 var fs = require('fs');
 var S = require('string');
+var li = require('li');
 
 describe('HTTP APIs', function() {
   var address = 'http://localhost:3457';
@@ -50,13 +51,52 @@ describe('HTTP APIs', function() {
 
   describe('HEAD API', function() {
       var emptyResponse = function(res) {
-          return 0 !== res.text.length;
+          if (res.text.length !== 0) {
+              error("Not empty response");
+          }
+      };
+      var getLink= function(res, rel) {
+          var links = res.headers.link.split(',');
+          for (var linkIndex in links) {
+              var link = links[linkIndex];
+              var parsedLink = li.parse(link);
+              for (var linkRel in parsedLink) {
+                  if (linkRel == rel) {
+                      return parsedLink[rel];
+                  }
+              }
+          }
+          return undefined;
+      };
+      var hasHeader = function(rel, value) {
+          var handler = function(res) {
+              var link = getLink(res, rel);
+              if (link) {
+                  if (link !== value) {
+                      error("Not same value");
+                  }
+              } else {
+                  error("Header does not exist");
+              }
+          };
+          return handler;
       };
       it('Should return empty response body', function(done) {
           server.head('/patch-5-initial.ttl')
               .expect(emptyResponse)
               .expect(200, done);
       });
+      it('Should return meta header', function(done) {
+          server.head('/')
+              .expect(hasHeader('\'describedBy\'', address + '/' + '.meta'))
+              .expect(200, done);
+      });
+      it('Should return acl header', function(done) {
+          server.head('/')
+              .expect(hasHeader('\'acl\'', address + '/' + '.acl'))
+              .expect(200, done);
+      });
+
   });
 
   describe('PUT API', function() {
