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91 lines
3.6 KiB
C
91 lines
3.6 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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/* mkpadpac.h -- Proxy auto-discovery documentation.
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Created: Judson Valeski, 01.15.1998
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Proxy auto-discovery (pad) allows the client to search for and use a
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pre-determined proxy auto-configuration (pac) file. The file it looks up
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and parses is named in the users prefs file (network.padPacURL). The feature
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can be completely disabled by setting the network.enablePad preference to
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false.
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Holding to tradition, I've piggy-backed pad onto the current pac file
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implementation. If pad is enabled, the MKproxy_ac_url variable (as defined in
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mkautocf.c/h) is set to point at the MK_padPacURL. This means that all the
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current pac file logic is used once a pac file is located by pad. A pad pac
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file is located by asyncronously searching for the host in the pad pac url
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in mkconect.c>NET_findAddress(). If the host is found then MKproxy_ac_url is
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set to MK_padPacURL (this happens in mkgeturl.c>NET_getURL()) and we treat the
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pad pac file just like a pac file. The only difference is that when there's
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a problem with the pad pac file, we failover silently to a direct connection,
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no error messages get to the user. All the silent failover happens in
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mkautocf.c, except for one case in mkhttp.c which handles the case when there
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is a problem actually loading the pac file itself.
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*/
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#ifndef MKPADPAC_H
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#define MKPADPAC_H
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#include "xp.h"
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#include "mkprefs.h"
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/* Global pad variables */
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extern PRBool foundPADPAC;
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extern char *MK_padPacURL;
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extern PRBool MK_PadEnabled;
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/* ***** FUNCTION PROTOTYPES */
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/* Setup internal variables to use or not use the proxy
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* autodiscovery feature. Actually not that simple. */
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MODULE_PRIVATE void net_UsePadPac(PRBool useIt);
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/* Return whether we're currently using a pac file via proxy autodiscovery.
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* This function takes three items into consideration:
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* 1. Is padpac enabled.
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* 2. Was the padpac host found.
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* 3. Is the user's proxy style pref set to NONE (i.e. the user is set to go
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* direct connection, not proxy, or auto proxy.
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*
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* If all these are true, then we're using a padpac file.
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*/
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PUBLIC PRBool NET_UsingPadPac(void);
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/* Return whether or not we are currently in the process of loading
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* a proxy autoconfig url. */
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PUBLIC PRBool NET_LoadingPac(void);
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/* Set the MK_padPacURL varialbe to point to the url passed in,
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* after checking the url for size limits.
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* Returns TRUE if successful, FALSE otherwise. */
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PUBLIC PRBool NET_SetPadPacURL(char * url);
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/* Called by js prefs when the padpac url changes. */
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MODULE_PRIVATE int PR_CALLBACK net_PadPacURLPrefChanged(const char *pref, void *data);
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/* Called by js prefs when the enable padpac pref changes. */
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MODULE_PRIVATE int PR_CALLBACK net_EnablePadPrefChanged(const char *pref, void *data);
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/* Registers the above callbacks with js prefs. */
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PUBLIC void NET_RegisterPadPrefCallbacks(void);
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/* ***** END FUNCTION PROTOTYPES */
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#endif /* MKPADPAC_H */
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