зеркало из https://github.com/mozilla/pjs.git
154 строки
3.9 KiB
C
154 строки
3.9 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* The contents of this file are subject to the Netscape Public License
|
|
* Version 1.0 (the "NPL"); you may not use this file except in
|
|
* compliance with the NPL. You may obtain a copy of the NPL at
|
|
* http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the NPL is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
|
|
* for the specific language governing rights and limitations under the
|
|
* NPL.
|
|
*
|
|
* The Initial Developer of this code under the NPL is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
|
|
* Reserved.
|
|
*/
|
|
/* designed/implemented by Gagan Saksena */
|
|
|
|
#include "mkutils.h"
|
|
#include "xp.h"
|
|
#include "prefetch.h"
|
|
#include "net.h"
|
|
#include "xp_list.h"
|
|
#include "prefapi.h"
|
|
|
|
PRIVATE XP_List* prefetch_list = 0;
|
|
|
|
MODULE_PRIVATE Bool pre_OKToPrefetch(char* url);
|
|
MODULE_PRIVATE void pre_Finished(URL_Struct* url_struct, int status, MWContext* context);
|
|
|
|
PRIVATE XP_Bool pre_enabled = TRUE;
|
|
PRIVATE void pre_ProcessList(MWContext* context);
|
|
|
|
/* Constructs a URL_Struct from the the specified URL to the prefetch_list based
|
|
on the value of the pre subtag.
|
|
*/
|
|
PUBLIC void
|
|
PRE_AddToList(MWContext* context, char* url)
|
|
{
|
|
/* Construct a new URL_Struct with this url, and Prefetch priority */
|
|
URL_Struct* urls;
|
|
|
|
if (!pre_enabled || !pre_OKToPrefetch(url))
|
|
return;
|
|
|
|
urls = NET_CreateURLStruct(url, NET_DONT_RELOAD);
|
|
if (!urls)
|
|
return;
|
|
|
|
urls->priority = Prefetch_priority;
|
|
urls->load_background = TRUE;
|
|
|
|
if (prefetch_list == NULL)
|
|
{
|
|
prefetch_list = XP_ListNew();
|
|
}
|
|
|
|
XP_ListAddObjectToEnd(prefetch_list, urls);
|
|
}
|
|
|
|
|
|
/* The main process for each MWContext, should be called after
|
|
a page is finished loading. This basically extracts all the
|
|
links on the current page and eliminates the non relevant ones
|
|
and adds the elements to the prefetch_list. If something
|
|
has been added, then it is passed on to NET_GetURL function
|
|
for prefetching and storing in cache.
|
|
*/
|
|
PUBLIC void
|
|
PRE_Fetch(MWContext* context)
|
|
{
|
|
pre_ProcessList(context);
|
|
}
|
|
|
|
/* Returns bool to indicate if its OK to prefetch the specified URL.
|
|
we don't prefetch mailto:, file:, etc.
|
|
*/
|
|
PRIVATE Bool
|
|
pre_OKToPrefetch(char* url)
|
|
{
|
|
int type;
|
|
if (url == NULL)
|
|
return FALSE;
|
|
|
|
/* Skip interpreted cgi-bin's for now... */
|
|
if (PL_strchr(url, '?') ||
|
|
PL_strstr(url, "cgi-bin") ||
|
|
PL_strstr(url, ".cgi") ||
|
|
PL_strstr(url, ".shtml"))
|
|
return FALSE;
|
|
|
|
/* approve only HTTP and Gopher for now (skip about:/mailto:/telnet:/gopher:/ etc.) */
|
|
/* TODO add FTP directories only! */
|
|
type = NET_URL_Type(url);
|
|
if (type && (
|
|
(type == HTTP_TYPE_URL) ||
|
|
(type == GOPHER_TYPE_URL)))
|
|
return TRUE;
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
PRIVATE void
|
|
pre_Finished(URL_Struct* url_struct, int status, MWContext* context)
|
|
{
|
|
/* this should change to update the colors of
|
|
the prefetched links */
|
|
if (prefetch_list)
|
|
{
|
|
XP_ListRemoveObject(prefetch_list, url_struct);
|
|
|
|
if (XP_ListCount(prefetch_list) == 0)
|
|
{
|
|
XP_ListDestroy(prefetch_list);
|
|
prefetch_list = 0;
|
|
}
|
|
}
|
|
XP_FREEIF(url_struct);
|
|
}
|
|
|
|
PRIVATE void
|
|
pre_ProcessList(MWContext* context)
|
|
{
|
|
if (XP_ListCount(prefetch_list)>0)
|
|
{
|
|
XP_List* pList = prefetch_list;
|
|
URL_Struct* urls = (URL_Struct*)XP_ListNextObject(pList);
|
|
|
|
while (urls)
|
|
{
|
|
NET_GetURL(urls,
|
|
FO_CACHE_ONLY,
|
|
context,
|
|
pre_Finished);
|
|
|
|
urls = (URL_Struct*)XP_ListNextObject(pList);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Enable or disable the prefetching, called from NET_SetupPrefs in mkgeturl.c */
|
|
PUBLIC void
|
|
PRE_Enable(PRUint8 nNumber)
|
|
{
|
|
if (nNumber > 0)
|
|
{
|
|
pre_enabled = TRUE;
|
|
/* TODO - set max number here */
|
|
}
|
|
else
|
|
pre_enabled = FALSE;
|
|
}
|