Fix content-type return behavior for */*

An HTTP header of Accepts: */* throws a big wrench into our
implementation for a couple reasons.  First, because it's the default in
a lot of commonly-used libraries, and second, because clients use it
when they certainly don't mean what the specification says it should
mean "ie, I accept ANY type".

This commit tries to address some of that, by making an explicit option
for content-type="ANY" and pushes it to the individual callers to handle
explicitly as if it were yet another type.  In most protocols, there's a
"most common" representation, so protocols are free to use that, or to
explicitly handle it, and require that the user be explicit.

Tested:
Redfish Protocol Validator no longer locks up.  (TBD, getting bugs filed
with protocol validator for this missing Accepts header).

For ServiceRoot
GET /redfish/v1 Accepts: application/json - returns json
GET /redfish/v1 Accepts: */* - returns json
GET /redfish/v1 Accepts: text/html - returns html
GET /redfish/v1 no-accepts header - returns json

Redfish-service-validator passes.

Signed-off-by: Ed Tanous <edtanous@google.com>
Change-Id: Iae6711ae587115d3e159a48a6fc46a903ed6c403

1 files changed, 20 insertions, 15 deletions

diff --git a/test/include/http_utility_test.cpp b/test/include/http_utility_test.cpp
index d1df6d1087..6878001e6a 100644
--- a/test/include/http_utility_test.cpp
+++ b/test/include/http_utility_test.cpp
@@ -13,38 +13,42 @@ namespace
 
 TEST(isContentTypeAllowed, PositiveTest)
 {
-    EXPECT_TRUE(isContentTypeAllowed("*/*, application/octet-stream",
-                                     ContentType::OctetStream));
+    EXPECT_TRUE(isContentTypeAllowed("*/*", ContentType::HTML, true));
     EXPECT_TRUE(isContentTypeAllowed("application/octet-stream",
-                                     ContentType::OctetStream));
-    EXPECT_TRUE(isContentTypeAllowed("text/html", ContentType::HTML));
-    EXPECT_TRUE(isContentTypeAllowed("application/json", ContentType::JSON));
-    EXPECT_TRUE(isContentTypeAllowed("application/cbor", ContentType::CBOR));
+                                     ContentType::OctetStream, false));
+    EXPECT_TRUE(isContentTypeAllowed("text/html", ContentType::HTML, false));
     EXPECT_TRUE(
-        isContentTypeAllowed("application/json, text/html", ContentType::HTML));
+        isContentTypeAllowed("application/json", ContentType::JSON, false));
+    EXPECT_TRUE(
+        isContentTypeAllowed("application/cbor", ContentType::CBOR, false));
+    EXPECT_TRUE(isContentTypeAllowed("application/json, text/html",
+                                     ContentType::HTML, false));
 }
 
 TEST(isContentTypeAllowed, NegativeTest)
 {
+    EXPECT_FALSE(isContentTypeAllowed("application/octet-stream",
+                                      ContentType::HTML, false));
+    EXPECT_FALSE(
+        isContentTypeAllowed("application/html", ContentType::JSON, false));
     EXPECT_FALSE(
-        isContentTypeAllowed("application/octet-stream", ContentType::HTML));
-    EXPECT_FALSE(isContentTypeAllowed("application/html", ContentType::JSON));
-    EXPECT_FALSE(isContentTypeAllowed("application/json", ContentType::CBOR));
-    EXPECT_FALSE(isContentTypeAllowed("application/cbor", ContentType::HTML));
+        isContentTypeAllowed("application/json", ContentType::CBOR, false));
+    EXPECT_FALSE(
+        isContentTypeAllowed("application/cbor", ContentType::HTML, false));
     EXPECT_FALSE(isContentTypeAllowed("application/json, text/html",
-                                      ContentType::OctetStream));
+                                      ContentType::OctetStream, false));
 }
 
 TEST(isContentTypeAllowed, ContainsAnyMimeTypeReturnsTrue)
 {
     EXPECT_TRUE(
-        isContentTypeAllowed("text/html, */*", ContentType::OctetStream));
+        isContentTypeAllowed("text/html, */*", ContentType::OctetStream, true));
 }
 
 TEST(isContentTypeAllowed, ContainsQFactorWeightingReturnsTrue)
 {
-    EXPECT_TRUE(
-        isContentTypeAllowed("text/html, */*;q=0.8", ContentType::OctetStream));
+    EXPECT_TRUE(isContentTypeAllowed("text/html, */*;q=0.8",
+                                     ContentType::OctetStream, true));
 }
 
 TEST(getPreferedContentType, PositiveTest)
@@ -69,6 +73,7 @@ TEST(getPreferedContentType, PositiveTest)
 
     EXPECT_EQ(getPreferedContentType("application/json", cborJson),
               ContentType::JSON);
+    EXPECT_EQ(getPreferedContentType("*/*", cborJson), ContentType::ANY);
 }
 
 TEST(getPreferedContentType, NegativeTest)