зеркало из https://github.com/mozilla/pjs.git
583 строки
16 KiB
C
583 строки
16 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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/* Please leave outside of ifdef for windows precompiled headers */
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#include "xp.h"
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#include "plstr.h"
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#include "prmem.h"
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#include "netutils.h"
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#include "mkselect.h"
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#include "mktcp.h"
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#include "mkgeturl.h"
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#ifdef MOZILLA_CLIENT
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/* take an HTML stream. Escape all the HTML and
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* use <FONT color=> to color the different syntactical parts
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* of the HTML stream
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*/
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#include "xpgetstr.h"
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#include "intl_csi.h"
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#define VIEW_SOURCE_TARGET_WINDOW_NAME "%ViewSourceWindow"
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typedef enum StatesEnum {
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IN_CONTENT,
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IN_SCRIPT,
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ABOUT_TO_BEGIN_TAG,
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IN_BEGIN_TAG,
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IN_TAG,
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BEGIN_ATTRIBUTE_VALUE,
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IN_QUOTED_ATTRIBUTE_VALUE,
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IN_BROKEN_QUOTED_ATTRIBUTE_VALUE,
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IN_UNQUOTED_ATTRIBUTE_VALUE,
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IN_COMMENT,
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IN_AMPERSAND_THINGY
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} StatesEnum;
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#define MAXTAGLEN 15
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typedef struct _DataObject {
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NET_StreamClass * next_stream;
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StatesEnum state;
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char tag[MAXTAGLEN+1];
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uint tag_index;
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PRBool in_broken_html;
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} DataObject;
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#define BEGIN_TAG_MARKUP "<B>"
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#define END_TAG_MARKUP "</B>"
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#define BEGIN_TAG_NAME_MARKUP "<FONT SIZE=+0 COLOR=\"#551A8B\">"
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#define END_TAG_NAME_MARKUP "</FONT>"
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#define BEGIN_ATTRIBUTE_VALUE_MARKUP "</B><FONT SIZE=+0 COLOR=\"003E98\">"
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#define END_ATTRIBUTE_VALUE_MARKUP "</FONT><B>"
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#define BEGIN_BROKEN_ATTRIBUTE_MARKUP "<FONT COLOR=#0000FF><BLINK>"
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#define END_BROKEN_ATTRIBUTE_MARKUP "</BLINK></FONT>"
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#define BEGIN_COMMENT_MARKUP "<I>"
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#define END_COMMENT_MARKUP "</I>"
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#define BEGIN_AMPERSAND_THINGY_MARKUP "<FONT SIZE=+0 COLOR=\"#2F4F2F\">"
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#define END_AMPERSAND_THINGY_MARKUP "</FONT>"
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extern int MK_CVCOLOR_SOURCE_OF;
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PRIVATE char *net_BeginColorHTMLTag (DataObject *obj)
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{
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char *new_markup = 0;
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StrAllocCat(new_markup, BEGIN_TAG_MARKUP);
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StrAllocCat(new_markup, "<");
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StrAllocCat(new_markup, BEGIN_TAG_NAME_MARKUP);
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obj->state = ABOUT_TO_BEGIN_TAG;
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return new_markup;
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}
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PRIVATE char *net_EndColorHTMLTag (DataObject *obj)
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{
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char *new_markup = 0;
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if(obj->in_broken_html)
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{
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StrAllocCopy(new_markup, END_BROKEN_ATTRIBUTE_MARKUP);
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obj->in_broken_html = PR_FALSE;
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}
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StrAllocCat(new_markup, ">");
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StrAllocCat(new_markup, END_TAG_MARKUP);
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return new_markup;
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}
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PRIVATE int net_ColorHTMLWrite (NET_StreamClass *stream, CONST char *s, int32 l)
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{
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int32 i;
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int32 last_output_point;
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char *new_markup=0;
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char *tmp_markup=0;
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char tiny_buf[4];
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CONST char *cp;
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int status;
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DataObject *obj=stream->data_object;
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last_output_point = 0;
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for(i = 0, cp = s; i < l; i++, cp++)
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{
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switch(obj->state)
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{
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case IN_CONTENT:
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/* do nothing until you find a '<' "<!--" or '&' */
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if(*cp == '<')
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{
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/* XXX we can miss a comment spanning a block boundary */
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if(i+4 <= l && !PL_strncmp(cp, "<!--", 4))
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{
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StrAllocCopy(new_markup, BEGIN_COMMENT_MARKUP);
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StrAllocCat(new_markup, "<");
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obj->state = IN_COMMENT;
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}
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else
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{
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new_markup = net_BeginColorHTMLTag(obj);
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}
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}
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else if(*cp == '&')
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{
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StrAllocCopy(new_markup, BEGIN_AMPERSAND_THINGY_MARKUP);
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StrAllocCat(new_markup, "&");
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obj->state = IN_AMPERSAND_THINGY;
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}
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break;
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case IN_SCRIPT:
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/* do nothing until you find '</SCRIPT>' */
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if(*cp == '<')
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{
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/* XXX we can miss a </SCRIPT> spanning a block boundary */
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if(i+8 <= l && !PL_strncasecmp(cp, "</SCRIPT", 8))
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{
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new_markup = net_BeginColorHTMLTag(obj);
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}
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}
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break;
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case ABOUT_TO_BEGIN_TAG:
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/* we have seen the first '<'
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* once we see a non-whitespace character
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* we will be in the tag identifier
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*/
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if(*cp == '>')
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{
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StrAllocCopy(new_markup, END_TAG_NAME_MARKUP);
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tmp_markup = net_EndColorHTMLTag(obj);
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StrAllocCat(new_markup, tmp_markup);
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PR_FREEIF(tmp_markup);
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tmp_markup = NULL;
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}
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else if(!NET_IS_SPACE(*cp))
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{
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obj->state = IN_BEGIN_TAG;
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obj->tag_index = 0;
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obj->tag[obj->tag_index++] = *cp;
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if(*cp == '<')
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StrAllocCopy(new_markup, "<");
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}
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break;
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case IN_BEGIN_TAG:
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/* go to the IN_TAG state when we see
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* the first whitespace
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*/
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if(NET_IS_SPACE(*cp))
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{
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StrAllocCopy(new_markup, END_TAG_NAME_MARKUP);
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sprintf(tiny_buf, "%c", *cp);
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StrAllocCat(new_markup, tiny_buf);
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obj->state = IN_TAG;
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obj->tag[obj->tag_index] = '\0';
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}
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else if(*cp == '>')
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{
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StrAllocCopy(new_markup, END_TAG_NAME_MARKUP);
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tmp_markup = net_EndColorHTMLTag(obj);
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StrAllocCat(new_markup, tmp_markup);
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PR_FREEIF(tmp_markup);
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tmp_markup = NULL;
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}
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else if(*cp == '<')
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{
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/* protect ourselves from markup */
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if(!obj->in_broken_html)
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{
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obj->in_broken_html = PR_TRUE;
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StrAllocCopy(new_markup, BEGIN_BROKEN_ATTRIBUTE_MARKUP);
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StrAllocCat(new_markup, "<");
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}
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else
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{
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StrAllocCopy(new_markup, "<");
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}
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}
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else
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{
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if (obj->tag_index < MAXTAGLEN)
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obj->tag[obj->tag_index++] = *cp;
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}
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break;
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case IN_TAG:
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/* do nothing until you find a opening '=' or end '>' */
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if(*cp == '=')
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{
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StrAllocCopy(new_markup, "=");
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StrAllocCat(new_markup, BEGIN_ATTRIBUTE_VALUE_MARKUP);
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obj->state = BEGIN_ATTRIBUTE_VALUE;
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}
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else if(*cp == '>')
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{
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new_markup = net_EndColorHTMLTag(obj);
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}
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else if(*cp == '<')
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{
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/* protect ourselves from markup */
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StrAllocCopy(new_markup, "<");
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}
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break;
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case BEGIN_ATTRIBUTE_VALUE:
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/* when we reach the first non-whitespace
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* we will enter the UNQUOTED or the QUOTED
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* ATTRIBUTE state
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*/
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if(!NET_IS_SPACE(*cp))
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{
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if(*cp == '"')
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{
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obj->state = IN_QUOTED_ATTRIBUTE_VALUE;
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/* no need to jump to the quoted attr handler
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* since this char can't be a dangerous char
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*/
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}
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else
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{
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obj->state = IN_UNQUOTED_ATTRIBUTE_VALUE;
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/* need to jump to the unquoted attr handler
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* since this char can be a dangerous character
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*/
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goto unquoted_attribute_jump_point;
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}
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}
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else if(*cp == '>')
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{
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StrAllocCopy(new_markup, END_ATTRIBUTE_VALUE_MARKUP);
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tmp_markup = net_EndColorHTMLTag(obj);
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StrAllocCat(new_markup, tmp_markup);
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PR_FREEIF(tmp_markup);
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tmp_markup = NULL;
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}
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else if(*cp == '<')
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{
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/* protect ourselves from markup */
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StrAllocCopy(new_markup, "<");
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}
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break;
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case IN_UNQUOTED_ATTRIBUTE_VALUE:
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unquoted_attribute_jump_point:
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/* do nothing until you find a whitespace */
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if(NET_IS_SPACE(*cp))
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{
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StrAllocCopy(new_markup, END_ATTRIBUTE_VALUE_MARKUP);
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sprintf(tiny_buf, "%c", *cp);
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StrAllocCat(new_markup, tiny_buf);
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obj->state = IN_TAG;
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}
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else if(*cp == '>')
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{
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StrAllocCopy(new_markup, END_ATTRIBUTE_VALUE_MARKUP);
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tmp_markup = net_EndColorHTMLTag(obj);
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StrAllocCat(new_markup, tmp_markup);
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PR_FREEIF(tmp_markup);
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tmp_markup = NULL;
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}
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else if(*cp == '<')
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{
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/* protect ourselves from markup */
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StrAllocCopy(new_markup, "<");
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}
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else if(*cp == '&')
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{
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/* protect ourselves from markup */
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StrAllocCopy(new_markup, "&");
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}
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break;
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case IN_QUOTED_ATTRIBUTE_VALUE:
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/* do nothing until you find a closing '"' */
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if(*cp == '\"')
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{
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if(obj->in_broken_html)
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{
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StrAllocCopy(new_markup, END_BROKEN_ATTRIBUTE_MARKUP);
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obj->in_broken_html = PR_FALSE;
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}
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StrAllocCat(new_markup, "\"");
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StrAllocCat(new_markup, END_ATTRIBUTE_VALUE_MARKUP);
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obj->state = IN_TAG;
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}
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else if(*cp == '<')
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{
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/* protect ourselves from markup */
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StrAllocCopy(new_markup, "<");
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}
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else if(*cp == '&')
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{
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/* protect ourselves from markup */
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StrAllocCopy(new_markup, "&");
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}
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else if(*cp == '>')
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{
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/* probably a broken attribute value */
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if(!obj->in_broken_html)
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{
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obj->in_broken_html = PR_TRUE;
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StrAllocCopy(new_markup, BEGIN_BROKEN_ATTRIBUTE_MARKUP);
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StrAllocCat(new_markup, ">");
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}
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}
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break;
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case IN_COMMENT:
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/* do nothing until you find a closing '-->' */
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if(!PL_strncmp(cp, "-->", 3))
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{
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StrAllocCopy(new_markup, ">");
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cp += 2;
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i += 2;
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StrAllocCat(new_markup, END_COMMENT_MARKUP);
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obj->state = IN_CONTENT;
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}
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else if(*cp == '<')
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{
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/* protect ourselves from markup */
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StrAllocCopy(new_markup, "<");
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}
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break;
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case IN_AMPERSAND_THINGY:
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/* do nothing until you find a ';' or space */
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if(*cp == ';' || NET_IS_SPACE(*cp))
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{
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sprintf(tiny_buf, "%c", *cp);
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StrAllocCopy(new_markup, tiny_buf);
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StrAllocCat(new_markup, END_AMPERSAND_THINGY_MARKUP);
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obj->state = IN_CONTENT;
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}
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else if(*cp == '<')
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{
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/* protect ourselves from markup */
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StrAllocCopy(new_markup, "<");
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}
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break;
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default:
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PR_ASSERT(0);
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break;
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}
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if(new_markup)
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{
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/* push all the way up to but not including *cp */
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status = (*obj->next_stream->put_block)
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(obj->next_stream,
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&s[last_output_point],
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i-last_output_point);
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last_output_point = i+1;
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if(status < 0)
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{
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PR_Free(new_markup);
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return(status);
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}
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/* add new markup */
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status = (*obj->next_stream->put_block)
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(obj->next_stream,
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new_markup, PL_strlen(new_markup));
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if(status < 0)
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{
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PR_Free(new_markup);
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return(status);
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}
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PR_FREEIF(new_markup);
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new_markup = NULL;
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}
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}
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if(last_output_point < l)
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return((*obj->next_stream->put_block)(obj->next_stream,
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&s[last_output_point],
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(l-last_output_point)));
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else
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return(0);
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}
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/* is the stream ready for writeing?
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*/
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PRIVATE unsigned int net_ColorHTMLWriteReady (NET_StreamClass * stream)
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{
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DataObject *obj=stream->data_object;
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return((*obj->next_stream->is_write_ready)(obj->next_stream));
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}
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PRIVATE void net_ColorHTMLComplete (NET_StreamClass *stream)
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{
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DataObject *obj=stream->data_object;
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(*obj->next_stream->complete)(obj->next_stream);
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}
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PRIVATE void net_ColorHTMLAbort (NET_StreamClass *stream, int status)
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{
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DataObject *obj=stream->data_object;
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(*obj->next_stream->abort)(obj->next_stream, status);
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}
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PUBLIC NET_StreamClass *
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net_ColorHTMLStream (int format_out,
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void *data_obj,
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URL_Struct *URL_s,
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MWContext *window_id)
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{
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DataObject* obj;
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char *new_markup=0;
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char *new_url=0;
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char *old_url;
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int status, type;
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NET_StreamClass *next_stream, *new_stream;
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PRBool is_html_stream = PR_FALSE;
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INTL_CharSetInfo csi = LO_GetDocumentCharacterSetInfo(window_id);
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INTL_CharSetInfo next_csi;
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TRACEMSG(("Setting up ColorHTML stream. Have URL: %s\n", URL_s->address));
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/* treat the stream as html if the closure data says
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* it's HTML and it is also not a mail or news message
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*/
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type = NET_URL_Type(URL_s->address);
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if(data_obj
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&& !PL_strcmp((char *)data_obj, TEXT_HTML)
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&& type != MAILBOX_TYPE_URL
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&& type != IMAP_TYPE_URL
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&& type != NEWS_TYPE_URL)
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is_html_stream = PR_TRUE;
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/* use a new named window */
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StrAllocCopy(URL_s->window_target, VIEW_SOURCE_TARGET_WINDOW_NAME);
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/* add the url address to the name so that there can be
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* one view source window per url
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*/
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StrAllocCat(URL_s->window_target, URL_s->address);
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/* zero position_tag to prevent hash lossage */
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URL_s->position_tag = 0;
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/* alloc a new chrome struct and stick it in the URL
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* so that we can turn off the relavent stuff
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*/
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URL_s->window_chrome = PR_NEW(Chrome);
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if(URL_s->window_chrome)
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{
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/* zero everything to turn off all chrome */
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memset(URL_s->window_chrome, 0, sizeof(Chrome));
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URL_s->window_chrome->type = MWContextDialog;
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URL_s->window_chrome->show_scrollbar = PR_TRUE;
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URL_s->window_chrome->allow_resize = PR_TRUE;
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URL_s->window_chrome->allow_close = PR_TRUE;
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}
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/* call the HTML parser */
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StrAllocCopy(URL_s->content_type, INTERNAL_PARSER);
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/* use the view-source: url instead */
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StrAllocCopy(new_url, VIEW_SOURCE_URL_PREFIX);
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StrAllocCat(new_url, URL_s->address);
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old_url = URL_s->address;
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URL_s->address = new_url;
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format_out = FO_PRESENT;
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/* open next stream */
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next_stream = NET_StreamBuilder(format_out, URL_s, window_id);
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if(!next_stream)
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{
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PR_Free(old_url);
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return(NULL);
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}
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next_csi = LO_GetDocumentCharacterSetInfo(next_stream->window_id);
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/* jliu: for international's reason,
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set the value ASAP, so the following stream can share it */
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INTL_SetCSIWinCSID(next_csi, INTL_GetCSIWinCSID(csi));
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INTL_SetCSIDocCSID(next_csi, INTL_GetCSIDocCSID(csi));
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#define DEF_PICS_LABEL "<META http-equiv=PICS-Label content='(PICS-1.0 \"http://home.netscape.com/default_rating\" l gen true r (s 0))'>"
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/* add a PICS label */
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StrAllocCopy(new_markup, DEF_PICS_LABEL);
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StrAllocCat(new_markup, "<TITLE>");
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StrAllocCat(new_markup, XP_GetString(MK_CVCOLOR_SOURCE_OF));
|
|
StrAllocCat(new_markup, old_url);
|
|
StrAllocCat(new_markup, "</TITLE><BODY BGCOLOR=#C0C0C0>");
|
|
|
|
|
|
if(!is_html_stream)
|
|
StrAllocCat(new_markup, "<PLAINTEXT>");
|
|
else
|
|
StrAllocCat(new_markup, "<PRE>");
|
|
|
|
PR_Free(old_url);
|
|
|
|
status = (*next_stream->put_block)(next_stream,
|
|
new_markup,
|
|
PL_strlen(new_markup));
|
|
PR_Free(new_markup);
|
|
|
|
if(status < 0)
|
|
{
|
|
(*next_stream->abort)(next_stream, status);
|
|
PR_Free(next_stream);
|
|
return(NULL);
|
|
}
|
|
|
|
if(!is_html_stream)
|
|
return(next_stream);
|
|
|
|
/* else; continue on and build up this stream module
|
|
* and attach the next stream to it
|
|
*/
|
|
|
|
new_stream = PR_NEW(NET_StreamClass);
|
|
if(new_stream == NULL)
|
|
{
|
|
(*next_stream->abort)(next_stream, status);
|
|
PR_Free(next_stream);
|
|
return(NULL);
|
|
}
|
|
|
|
obj = PR_NEW(DataObject);
|
|
|
|
if (obj == NULL)
|
|
{
|
|
(*next_stream->abort)(next_stream, status);
|
|
PR_Free(next_stream);
|
|
PR_Free(new_stream);
|
|
return(NULL);
|
|
}
|
|
|
|
memset(obj, 0, sizeof(DataObject));
|
|
|
|
obj->state = IN_CONTENT;
|
|
|
|
obj->next_stream = next_stream;
|
|
|
|
new_stream->name = "HTML Colorer";
|
|
new_stream->complete = (MKStreamCompleteFunc) net_ColorHTMLComplete;
|
|
new_stream->abort = (MKStreamAbortFunc) net_ColorHTMLAbort;
|
|
new_stream->put_block = (MKStreamWriteFunc) net_ColorHTMLWrite;
|
|
new_stream->is_write_ready = (MKStreamWriteReadyFunc)
|
|
net_ColorHTMLWriteReady;
|
|
new_stream->data_object = (void *) obj; /* document info object */
|
|
new_stream->window_id = window_id;
|
|
|
|
TRACEMSG(("Returning stream from HTMLColorConverter\n"));
|
|
|
|
return new_stream;
|
|
}
|
|
#endif /* MOZILLA_CLIENT */
|