-const char killpopup_rcs[] = "$Id: killpopup.c,v 1.2 2001/05/20 01:21:20 jongfoster Exp $";
+const char killpopup_rcs[] = "$Id: killpopup.c,v 1.13 2001/11/13 00:16:40 jongfoster Exp $";
/*********************************************************************
*
* File : $Source: /cvsroot/ijbswa/current/killpopup.c,v $
* IJBSWA team. http://ijbswa.sourceforge.net
*
* Based on the Internet Junkbuster originally written
- * by and Copyright (C) 1997 Anonymous Coders and
+ * by and Copyright (C) 1997 Anonymous Coders and
* Junkbusters Corporation. http://www.junkbusters.com
*
- * This program is free software; you can redistribute it
+ * This program is free software; you can redistribute it
* and/or modify it under the terms of the GNU General
* Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at
*
* Revisions :
* $Log: killpopup.c,v $
+ * Revision 1.13 2001/11/13 00:16:40 jongfoster
+ * Replacing references to malloc.h with the standard stdlib.h
+ * (See ANSI or K&R 2nd Ed)
+ *
+ * Revision 1.12 2001/10/25 03:40:48 david__schmidt
+ * Change in porting tactics: OS/2's EMX porting layer doesn't allow multiple
+ * threads to call select() simultaneously. So, it's time to do a real, live,
+ * native OS/2 port. See defines for __EMX__ (the porting layer) vs. __OS2__
+ * (native). Both versions will work, but using __OS2__ offers multi-threading.
+ *
+ * Revision 1.11 2001/10/07 15:42:41 oes
+ * filter_popups now gets a csp pointer so it can raise the new
+ * CSP_FLAG_MODIFIED flag.
+ *
+ * Revision 1.10 2001/09/22 16:34:44 jongfoster
+ * Removing unneeded #includes
+ *
+ * Revision 1.9 2001/07/31 14:44:22 oes
+ * Deleted unused size parameter from filter_popups()
+ *
+ * Revision 1.8 2001/07/30 22:08:36 jongfoster
+ * Tidying up #defines:
+ * - All feature #defines are now of the form FEATURE_xxx
+ * - Permanently turned off WIN_GUI_EDIT
+ * - Permanently turned on WEBDAV and SPLIT_PROXY_ARGS
+ *
+ * Revision 1.7 2001/07/20 19:29:25 haroon
+ * - In v1.5 forgot to add that I implemented LOG_LEVEL_POPUPS in errlog.c,
+ * errlog.h and killpopup.c. In that case, it is superfluous to have define for
+ * POPUP_VERBOSE, so I removed the defines and logging is now done
+ * via log_error(LOG_LEVEL_POPUPS, ....)
+ *
+ * Revision 1.6 2001/07/19 19:11:35 haroon
+ * - Implemented Guy's idea of replacing window.open( with 1;''.concat(
+ * - Implemented Guy's idea of replacing .resizeTo( with .scrollTo(
+ *
+ * Revision 1.5 2001/07/18 15:02:52 haroon
+ * improved nuking of window.open
+ *
+ * Revision 1.4 2001/06/29 13:29:55 oes
+ * Added FIXMEs (and didn't repair, hehe)
+ *
+ * Revision 1.3 2001/05/22 18:56:28 oes
+ * CRLF -> LF
+ *
* Revision 1.2 2001/05/20 01:21:20 jongfoster
* Version 2.9.4 checkin.
* - Merged popupfile and cookiefile, and added control over PCRS
#include <stdlib.h>
#include <sys/types.h>
#include <string.h>
-#include <malloc.h>
#include <errno.h>
#include <sys/stat.h>
#include <ctype.h>
-#ifndef _WIN32
+#if !defined(_WIN32) && !defined(__OS2__)
#include <unistd.h>
#endif
#include "project.h"
#include "killpopup.h"
-#include "jcc.h"
+#include "errlog.h"
const char killpopup_h_rcs[] = KILLPOPUP_H_VERSION;
-#ifdef KILLPOPUPS
-
-/* Change these for debug output. *lots*. */
-/*#define POPUP_VERBOSE 1*/
-#undef POPUP_VERBOSE
-
+#ifdef FEATURE_KILL_POPUPS
/*********************************************************************
*
* Function : filter_popups
*
- * Description : Filter the block of data that's been read from the server.
- * Caller is responsible for checking permissons list
- * to determine if this function should be called.
+ * Description : Filter the block of data that's been read from the server
+ * for javascript popup code and replace by syntactically
+ * neutral code of the same size.
+ * Raise the CSP_FLAG_MODIFIED flag on success.
*
* Parameters :
* 1 : buff = Buffer to scan and modify. Null terminated.
- * 2 : size = Buffer size, excluding null terminator.
+ * 2 : csp = Client state pointer
*
* Returns : void
*
*********************************************************************/
-void filter_popups(char *buff, int size)
+void filter_popups(char *buff, struct client_state *csp)
{
- char *popup = NULL;
- char *close = NULL;
+ char *start_p = NULL;
+ char *close_p = NULL;
char *p = NULL;
- char *q = NULL; /* by BREITENB NEW! */
- while ((popup = strstr( buff, "window.open(" )) != NULL)
+ /*
+ * replace the window.open( with a harmless JavaScript replacement
+ * (notice the two single quotes)
+ */
+ while ((start_p = strstr(buff, "window.open(")) != NULL)
{
-#ifdef POPUP_VERBOSE
- fprintf(logfp, "Found start of window open" );
-#endif
- close = strstr( popup+1, ");" );
- if ( close )
+ if (start_p)
{
-#ifdef POPUP_VERBOSE
- fprintf(logfp, "Found end of window open" );
-#endif
- for ( p = popup; p != (close+1); p++ )
- {
- *p = ' ';
- }
-#ifdef POPUP_VERBOSE
- fprintf(logfp, "Blocked %s\n", host_name );
-#endif
+ strncpy(start_p, "1;''.concat(", 12);
+ log_error(LOG_LEVEL_POPUPS, "Blocked popup window open");
+ csp->flags |= CSP_FLAG_MODIFIED;
}
- else
- {
-#ifdef POPUP_VERBOSE
- fprintf(logfp, "Couldn't find end, turned into comment. Read boundary?\n" );
-#endif
- *popup = '/';
- popup++;
- *popup = '/';
- }
-
+ }
- q=popup; /* by BREITENB NEW! */
- while (q>=buff)
- {
- if (*q==' ' || *q=='\t')
- q--;
- else break;
- }
- if (q>=buff)
+ /*
+ * replace the .resizeTo( with a harmless JavaScript replacement
+ */
+ while ((start_p = strstr(buff, ".resizeTo(")) != NULL)
+ {
+ if (start_p)
{
- if (*q=='=') *++q='1';
- /* result of popup is assigned to a variable! ensure success. hehehe. */
+ strncpy(start_p, ".scrollTo(", 10);
+ log_error(LOG_LEVEL_POPUPS, "Blocked popup window resize");
+ csp->flags |= CSP_FLAG_MODIFIED;
}
}
- /* Filter all other crap like onUnload onExit etc. (by BREITENB) NEW!*/
- popup=strstr( buff, "<body");
- if (!popup) popup=strstr( buff, "<BODY");
- if (!popup) popup=strstr( buff, "<Body");
- if (!popup) popup=strstr( buff, "<BOdy");
- if (popup)
+ /*
+ * Filter onUnload and onExit
+ */
+ start_p = strstr(buff, "<body");
+ if (!start_p) start_p = strstr(buff, "<BODY");
+ if (!start_p) start_p = strstr(buff, "<Body");
+ if (!start_p) start_p = strstr(buff, "<BOdy");
+ if (start_p)
{
- close=strchr(popup,'>');
- if (close)
+ close_p = strchr(start_p, '>');
+ if (close_p)
{
/* we are now between <body and the ending > */
- p=strstr(popup, "onUnload");
+ p = strstr(start_p, "onUnload");
if (p)
{
- strncpy(p,"_nU_",4);
+ strncpy(p, "_nU_", 4);
+ csp->flags |= CSP_FLAG_MODIFIED;
}
- p=strstr(popup, "onExit");
+ p = strstr(start_p, "onExit");
if (p)
{
- strncpy(p,"_nE_",4);
+ strncpy(p, "_nE_", 4);
+ csp->flags |= CSP_FLAG_MODIFIED;
}
}
}
}
-#endif /* def KILLPOPUPS */
+#endif /* def FEATURE_KILL_POPUPS */
/*
Local Variables:
projects / privoxy.git / blobdiff