[sheepdog] [PATCH 3/9] http: add uri and status to http_request

[MORITA Kazutaka]

From: MORITA Kazutaka <morita.kazutaka at lab.ntt.co.jp>

These fields are necessary to implement REST APIs in the later patch.

Signed-off-by: MORITA Kazutaka <morita.kazutaka at lab.ntt.co.jp>
---
 sheep/http.c | 24 +++++++++++++++++-------
 1 file changed, 17 insertions(+), 7 deletions(-)

diff --git a/sheep/http.c b/sheep/http.c
index 71bfb37..e4c1657 100644
--- a/sheep/http.c
+++ b/sheep/http.c
@@ -17,12 +17,6 @@
 
 #include "sheep_priv.h"
 
-struct http_request {
-	FCGX_Request fcgx;
-	int opcode;
-	size_t data_length;
-};
-
 enum http_opcode {
 	HTTP_GET = 1,
 	HTTP_PUT,
@@ -32,7 +26,8 @@ enum http_opcode {
 };
 
 enum http_status {
-	OK = 1,                         /* 200 */
+	UNKNOWN = 0,
+	OK,                             /* 200 */
 	CREATED,                        /* 201 */
 	PARTIAL_CONTENT,                /* 206 */
 	BAD_REQUEST,                    /* 400 */
@@ -42,9 +37,18 @@ enum http_status {
 	NOT_IMPLEMENTED,                /* 501 */
 };
 
+struct http_request {
+	FCGX_Request fcgx;
+	char *uri;
+	enum http_opcode opcode;
+	enum http_status status;
+	size_t data_length;
+};
+
 static inline const char *strstatus(int status)
 {
 	static const char *const descs[] = {
+		[UNKNOWN] = "Unknown",
 		[OK] = "200 OK",
 		[CREATED] = "201 CREATED",
 		[PARTIAL_CONTENT] = "206 Partial Content",
@@ -144,6 +148,7 @@ static int request_init_operation(struct http_request *req)
 
 	p = FCGX_GetParam("CONTENT_LENGTH", env);
 	req->data_length = strtoll(p, NULL, 10);
+	req->uri = FCGX_GetParam("DOCUMENT_URI", env);
 
 	return OK;
 }
@@ -162,8 +167,13 @@ static int http_init_request(struct http_request *req)
 	return OK;
 }
 
+/* This function does nothing if we have already printed a status code. */
 static void http_response_header(struct http_request *req, int status)
 {
+	if (req->status != UNKNOWN)
+		return;
+
+	req->status = status;
 	http_request_writef(req, "Status: %s\n", strstatus(status));
 	http_request_writes(req, "Content-type: text/plain;\r\n\r\n");
 }
-- 
1.8.1.2