http: return more than url to server app

Provide all bytes as received from transport as data in the http
message to server. Additionally provide offset and length of target
path, target query, headers and body. Offers apis for parsing of
headers, percent decoding, target path/query syntax verification.

Type: improvement

Change-Id: Idbe6f13afa378650cc5212ea7d3f9319183ebbbe
Signed-off-by: Matus Fabian <matfabia@cisco.com>

1 files changed, 18 insertions, 9 deletions

diff --git a/src/plugins/hs_apps/http_tps.c b/src/plugins/hs_apps/http_tps.c
index 920f7ea731f..3a086501f86 100644
--- a/src/plugins/hs_apps/http_tps.c
+++ b/src/plugins/hs_apps/http_tps.c
@@ -246,7 +246,7 @@ hts_start_send_data (hts_session_t *hs, http_status_code_t status)
 }
 
 static int
-try_test_file (hts_session_t *hs, u8 *request)
+try_test_file (hts_session_t *hs, u8 *target)
 {
   char *test_str = "test_file";
   hts_main_t *htm = &hts_main;
@@ -254,10 +254,10 @@ try_test_file (hts_session_t *hs, u8 *request)
   uword file_size;
   int rc = 0;
 
-  if (memcmp (request, test_str, clib_strnlen (test_str, 9)))
+  if (memcmp (target, test_str, clib_strnlen (test_str, 9)))
     return -1;
 
-  unformat_init_vector (&input, vec_dup (request));
+  unformat_init_vector (&input, vec_dup (target));
   if (!unformat (&input, "test_file_%U", unformat_memory_size, &file_size))
     {
       rc = -1;
@@ -297,8 +297,9 @@ done:
 static int
 hts_ts_rx_callback (session_t *ts)
 {
+  hts_main_t *htm = &hts_main;
   hts_session_t *hs;
-  u8 *request = 0;
+  u8 *target = 0;
   http_msg_t msg;
   int rv;
 
@@ -314,20 +315,28 @@ hts_ts_rx_callback (session_t *ts)
       goto done;
     }
 
-  if (!msg.data.len)
+  if (msg.data.target_path_len == 0 ||
+      msg.data.target_form != HTTP_TARGET_ORIGIN_FORM)
     {
       hts_start_send_data (hs, HTTP_STATUS_BAD_REQUEST);
       goto done;
     }
 
-  vec_validate (request, msg.data.len - 1);
-  rv = svm_fifo_dequeue (ts->rx_fifo, msg.data.len, request);
+  vec_validate (target, msg.data.target_path_len - 1);
+  rv = svm_fifo_peek (ts->rx_fifo, msg.data.target_path_offset,
+		      msg.data.target_path_len, target);
+  ASSERT (rv == msg.data.target_path_len);
+
+  if (htm->debug_level)
+    clib_warning ("Request target: %v", target);
 
-  if (try_test_file (hs, request))
+  if (try_test_file (hs, target))
     hts_start_send_data (hs, HTTP_STATUS_NOT_FOUND);
 
-done:
+  vec_free (target);
 
+done:
+  svm_fifo_dequeue_drop (ts->rx_fifo, msg.data.len);
   return 0;
 }