Refactor web cache to circumvent libsoup when needed
At this point libsoup is dependent on a functional network adapter, which may not be available if no network connection is there or the connection is faulty. So *if* we have a requested page in the cache, we load it before libsoup comes into play. Depending on the WebKitGTK+ version, loading from cache uses an "alternate" URI so that we don't end up having cache filenames in the location entry. Generation of cache filenames is fixed to never include special characters such as slashes or question marks. Only non-empty files are actually stored to the cache folder.
This commit is contained in:
Christian Dywan
parent
f875144aa3
commit
9040d43632
1 changed files with 103 additions and 25 deletions
|
|
@ -19,7 +19,7 @@
|
|||
#include <unistd.h>
|
||||
#endif
|
||||
|
||||
#define HAVE_WEBKIT_RESOURCE_REQUEST 0 /* WEBKIT_CHECK_VERSION (1, 1, 14) */
|
||||
#define HAVE_WEBKIT_RESOURCE_REQUEST WEBKIT_CHECK_VERSION (1, 1, 14)
|
||||
|
||||
static gchar*
|
||||
web_cache_get_cached_path (MidoriExtension* extension,
|
||||
|
|
@ -29,6 +29,7 @@ web_cache_get_cached_path (MidoriExtension* extension,
|
|||
gchar* checksum;
|
||||
gchar* folder;
|
||||
gchar* sub_path;
|
||||
gchar* encoded;
|
||||
gchar* ext;
|
||||
gchar* cached_filename;
|
||||
gchar* cached_path;
|
||||
|
|
@ -43,14 +44,73 @@ web_cache_get_cached_path (MidoriExtension* extension,
|
|||
g_mkdir (sub_path, 0700);
|
||||
g_free (folder);
|
||||
|
||||
ext = g_strrstr (uri, ".");
|
||||
encoded = soup_uri_encode (uri, "/");
|
||||
ext = g_strrstr (encoded, ".");
|
||||
cached_filename = g_strdup_printf ("%s%s", checksum, ext ? ext : "");
|
||||
g_free (encoded);
|
||||
g_free (checksum);
|
||||
cached_path = g_build_filename (sub_path, cached_filename, NULL);
|
||||
g_free (cached_filename);
|
||||
return cached_path;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
web_cache_replace_frame_uri (MidoriExtension* extension,
|
||||
const gchar* uri,
|
||||
WebKitWebFrame* web_frame)
|
||||
{
|
||||
gchar* filename;
|
||||
gboolean handled = FALSE;
|
||||
|
||||
filename = web_cache_get_cached_path (extension, uri);
|
||||
|
||||
/* g_debug ("cache lookup: %s => %s", uri, filename); */
|
||||
|
||||
if (g_file_test (filename, G_FILE_TEST_EXISTS))
|
||||
{
|
||||
gchar* data;
|
||||
g_file_get_contents (filename, &data, NULL, NULL);
|
||||
webkit_web_frame_load_alternate_string (web_frame, data, NULL, uri);
|
||||
g_free (data);
|
||||
handled = TRUE;
|
||||
}
|
||||
|
||||
g_free (filename);
|
||||
return handled;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
web_cache_navigation_decision_cb (WebKitWebView* web_view,
|
||||
WebKitWebFrame* web_frame,
|
||||
WebKitNetworkRequest* request,
|
||||
WebKitWebNavigationAction* action,
|
||||
WebKitWebPolicyDecision* decision,
|
||||
MidoriExtension* extension)
|
||||
{
|
||||
const gchar* uri = webkit_network_request_get_uri (request);
|
||||
if (!(uri && g_str_has_prefix (uri, "http://")))
|
||||
return FALSE;
|
||||
|
||||
return web_cache_replace_frame_uri (extension, uri, web_frame);
|
||||
}
|
||||
|
||||
#if WEBKIT_CHECK_VERSION (1, 1, 6)
|
||||
static gboolean
|
||||
web_cache_load_error_cb (WebKitWebView* web_view,
|
||||
WebKitWebFrame* web_frame,
|
||||
const gchar* uri,
|
||||
GError* error,
|
||||
MidoriExtension* extension)
|
||||
{
|
||||
const gchar* provisional;
|
||||
|
||||
if (!(uri && g_str_has_prefix (uri, "http://")))
|
||||
return FALSE;
|
||||
|
||||
return web_cache_replace_frame_uri (extension, uri, web_frame);
|
||||
}
|
||||
#endif
|
||||
|
||||
#if HAVE_WEBKIT_RESOURCE_REQUEST
|
||||
static void
|
||||
web_cache_resource_request_starting_cb (WebKitWebView* web_view,
|
||||
|
|
@ -67,10 +127,12 @@ web_cache_resource_request_starting_cb (WebKitWebView* web_view,
|
|||
if (!(uri && g_str_has_prefix (uri, "http://")))
|
||||
return;
|
||||
|
||||
/* g_debug ("cache lookup: %s => %s", uri, filename); */
|
||||
|
||||
/* FIXME: Replacing the main resource of the frame is bad,
|
||||
we must either skip it or find a way to redirect internally. */
|
||||
if (!(g_strcmp0 (uri, webkit_web_frame_get_uri (web_frame))
|
||||
&& g_strcmp0 (webkit_web_data_source_get_unreachable_uri (webkit_web_frame_get_data_source (web_frame)), uri)))
|
||||
{
|
||||
web_cache_replace_frame_uri (extension, uri, web_frame);
|
||||
return;
|
||||
}
|
||||
|
||||
filename = web_cache_get_cached_path (extension, uri);
|
||||
if (g_file_test (filename, G_FILE_TEST_EXISTS))
|
||||
|
|
@ -79,10 +141,10 @@ web_cache_resource_request_starting_cb (WebKitWebView* web_view,
|
|||
webkit_network_request_set_uri (request, file_uri);
|
||||
g_free (file_uri);
|
||||
}
|
||||
|
||||
g_free (filename);
|
||||
}
|
||||
#else
|
||||
#endif
|
||||
|
||||
static void
|
||||
web_cache_mesage_got_headers_cb (SoupMessage* msg,
|
||||
MidoriExtension* extension)
|
||||
|
|
@ -107,7 +169,6 @@ web_cache_mesage_got_headers_cb (SoupMessage* msg,
|
|||
g_free (filename);
|
||||
g_free (uri);
|
||||
}
|
||||
#endif
|
||||
|
||||
static void
|
||||
web_cache_mesage_got_chunk_cb (SoupMessage* msg,
|
||||
|
|
@ -132,17 +193,18 @@ web_cache_session_request_queued_cb (SoupSession* session,
|
|||
{
|
||||
gchar* filename = web_cache_get_cached_path (extension, uri);
|
||||
|
||||
/* g_debug ("cache lookup: %s => %s", uri, filename); */
|
||||
/* g_debug ("cache lookup: %d %s => %s", msg->status_code, uri, filename); */
|
||||
|
||||
g_object_set_data (G_OBJECT (msg), "session", session);
|
||||
#if HAVE_WEBKIT_RESOURCE_REQUEST
|
||||
if (!g_file_test (filename, G_FILE_TEST_EXISTS))
|
||||
#else
|
||||
|
||||
/* Network is unavailable, so we fallback to cache */
|
||||
if (msg->status_code == SOUP_STATUS_CANT_RESOLVE)
|
||||
web_cache_mesage_got_headers_cb (msg, extension);
|
||||
|
||||
if (g_file_test (filename, G_FILE_TEST_EXISTS))
|
||||
g_signal_connect (msg, "got-headers",
|
||||
G_CALLBACK (web_cache_mesage_got_headers_cb), extension);
|
||||
else
|
||||
#endif
|
||||
g_signal_connect (msg, "got-chunk",
|
||||
G_CALLBACK (web_cache_mesage_got_chunk_cb), extension);
|
||||
|
||||
|
|
@ -170,6 +232,7 @@ web_cache_session_request_unqueued_cb (SoupSession* session,
|
|||
#endif
|
||||
|
||||
/* FIXME: Only store if this wasn't a cached message already */
|
||||
/* FIXME: Don't store files from the res server */
|
||||
if (uri && g_str_has_prefix (uri, "http"))
|
||||
{
|
||||
SoupMessageHeaders* hdrs = msg->response_headers;
|
||||
|
|
@ -177,22 +240,34 @@ web_cache_session_request_unqueued_cb (SoupSession* session,
|
|||
|
||||
/* FIXME: Don't store big files */
|
||||
|
||||
/* Only images are cached */
|
||||
if (mime_type && g_str_has_prefix (mime_type, "image/"))
|
||||
if (mime_type)
|
||||
{
|
||||
gchar* filename = web_cache_get_cached_path (extension, uri);
|
||||
SoupMessageBody* body = msg->response_body;
|
||||
SoupBuffer* buffer = NULL;
|
||||
|
||||
/* We fed the buffer manually before, so this actually works. */
|
||||
if (!soup_message_body_get_accumulate (body))
|
||||
{
|
||||
soup_message_body_set_accumulate (body, TRUE);
|
||||
buffer = soup_message_body_flatten (body);
|
||||
|
||||
/* g_debug ("cache store: %s => %s", uri, filename); */
|
||||
}
|
||||
|
||||
/* FIXME: Update sensibly */
|
||||
if (!g_file_test (filename, G_FILE_TEST_EXISTS))
|
||||
g_file_set_contents (filename, body->data, body->length, NULL);
|
||||
if (body->length)
|
||||
{
|
||||
/* g_debug ("cache store: %s => %s (%d)", uri, filename, body->length); */
|
||||
GError* error = NULL;
|
||||
g_file_set_contents (filename, body->data, body->length, &error);
|
||||
if (error)
|
||||
{
|
||||
g_printf ("%s\n", error->message);
|
||||
g_error_free (error);
|
||||
}
|
||||
}
|
||||
/* else
|
||||
g_debug ("cache skip empty"); */
|
||||
|
||||
if (buffer)
|
||||
soup_buffer_free (buffer);
|
||||
|
|
@ -210,6 +285,12 @@ web_cache_add_tab_cb (MidoriBrowser* browser,
|
|||
MidoriExtension* extension)
|
||||
{
|
||||
GtkWidget* web_view = gtk_bin_get_child (GTK_BIN (view));
|
||||
g_signal_connect (web_view, "navigation-policy-decision-requested",
|
||||
G_CALLBACK (web_cache_navigation_decision_cb), extension);
|
||||
#if WEBKIT_CHECK_VERSION (1, 1, 6)
|
||||
g_signal_connect (web_view, "load-error",
|
||||
G_CALLBACK (web_cache_load_error_cb), extension);
|
||||
#endif
|
||||
#if HAVE_WEBKIT_RESOURCE_REQUEST
|
||||
g_signal_connect (web_view, "resource-request-starting",
|
||||
G_CALLBACK (web_cache_resource_request_starting_cb), extension);
|
||||
|
|
@ -253,10 +334,9 @@ web_cache_deactivate_tabs (MidoriView* view,
|
|||
#if HAVE_WEBKIT_RESOURCE_REQUEST
|
||||
g_signal_handlers_disconnect_by_func (
|
||||
web_view, web_cache_resource_request_starting_cb, extension);
|
||||
#else
|
||||
#endif
|
||||
g_signal_handlers_disconnect_by_func (
|
||||
webkit_get_default_session (), web_cache_session_request_queued_cb, extension);
|
||||
#endif
|
||||
}
|
||||
|
||||
static void
|
||||
|
|
@ -281,10 +361,8 @@ web_cache_activate_cb (MidoriExtension* extension,
|
|||
guint i;
|
||||
SoupSession* session = webkit_get_default_session ();
|
||||
|
||||
#if !HAVE_WEBKIT_RESOURCE_REQUEST
|
||||
g_signal_connect (session, "request-queued",
|
||||
G_CALLBACK (web_cache_session_request_queued_cb), extension);
|
||||
#endif
|
||||
g_signal_connect (session, "request-unqueued",
|
||||
G_CALLBACK (web_cache_session_request_unqueued_cb), extension);
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue