soup-cache: keep track of the HTTP status code to use it for cache responses

SoupMessages returned by the cache were lacking the HTTP status code. We
must store it in the cache and restore it when sending responses back.

https://bugzilla.gnome.org/show_bug.cgi?id=649965

1 files changed, 13 insertions, 4 deletions

diff --git a/libsoup/soup-cache.c b/libsoup/soup-cache.c
index b430610a..f0051380 100644
--- a/libsoup/soup-cache.c
+++ b/libsoup/soup-cache.c
@@ -55,8 +55,10 @@ static void soup_cache_session_feature_init (SoupSessionFeatureInterface *featur
 /*
  * Version 2: cache is now saved in soup.cache2. Added the version
  * number to the beginning of the file.
+ *
+ * Version 3: added HTTP status code to the cache entries.
  */
-#define SOUP_CACHE_CURRENT_VERSION 2
+#define SOUP_CACHE_CURRENT_VERSION 3
 
 typedef struct _SoupCacheEntry {
 	char *key;
@@ -77,6 +79,7 @@ typedef struct _SoupCacheEntry {
 	GError *error;
 	guint hits;
 	GCancellable *cancellable;
+	guint status_code;
 } SoupCacheEntry;
 
 struct _SoupCachePrivate {
@@ -435,6 +438,7 @@ soup_cache_entry_new (SoupCache *cache, SoupMessage *msg, time_t request_time, t
 	entry->data = g_string_new (NULL);
 	entry->pos = 0;
 	entry->error = NULL;
+	entry->status_code = msg->status_code;
 
 	/* key & filename */
 	entry->key = soup_message_get_cache_key (msg);
@@ -1032,6 +1036,9 @@ soup_cache_send_response (SoupCache *cache, SoupMessage *msg)
 	   in course is over by now */
 	entry->being_validated = FALSE;
 
+	/* Status */
+	soup_message_set_status (msg, entry->status_code);
+
 	/* Headers */
 	copy_end_to_end_headers (entry->headers, msg->response_headers);
 
@@ -1547,7 +1554,7 @@ soup_cache_generate_conditional_request (SoupCache *cache, SoupMessage *original
 #define SOUP_CACHE_FILE "soup.cache2"
 
 #define SOUP_CACHE_HEADERS_FORMAT "{ss}"
-#define SOUP_CACHE_PHEADERS_FORMAT "(ssbuuuuua" SOUP_CACHE_HEADERS_FORMAT ")"
+#define SOUP_CACHE_PHEADERS_FORMAT "(ssbuuuuuua" SOUP_CACHE_HEADERS_FORMAT ")"
 #define SOUP_CACHE_ENTRIES_FORMAT "(ua" SOUP_CACHE_PHEADERS_FORMAT ")"
 
 /* Basically the same format than above except that some strings are
@@ -1577,6 +1584,7 @@ pack_entry (gpointer data,
 	g_variant_builder_add (entries_builder, "u", entry->response_time);
 	g_variant_builder_add (entries_builder, "u", entry->hits);
 	g_variant_builder_add (entries_builder, "u", entry->length);
+	g_variant_builder_add (entries_builder, "u", entry->status_code);
 
 	/* Pack headers */
 	g_variant_builder_open (entries_builder, G_VARIANT_TYPE ("a" SOUP_CACHE_HEADERS_FORMAT));
@@ -1646,7 +1654,7 @@ void
 soup_cache_load (SoupCache *cache)
 {
 	gboolean must_revalidate;
-	uint freshness_lifetime, hits;
+	uint freshness_lifetime, hits, status_code;
 	time_t corrected_initial_age, response_time;
 	char *key, *filename = NULL, *contents = NULL;
 	GVariant *cache_variant;
@@ -1680,7 +1688,7 @@ soup_cache_load (SoupCache *cache)
 	while (g_variant_iter_loop (entries_iter, SOUP_CACHE_PHEADERS_FORMAT,
 				    &key, &filename, &must_revalidate,
 				    &freshness_lifetime, &corrected_initial_age,
-				    &response_time, &hits, &length,
+				    &response_time, &hits, &length, &status_code,
                                     &headers_iter)) {
 		const gchar *header_key, *header_value;
 		SoupMessageHeaders *headers;
@@ -1710,6 +1718,7 @@ soup_cache_load (SoupCache *cache)
 		entry->hits = hits;
 		entry->length = length;
 		entry->headers = headers;
+		entry->status_code = status_code;
 
 		if (!soup_cache_entry_insert_by_key (cache, entry->key, entry, FALSE))
 			soup_cache_entry_free (entry, TRUE);