gecko-dev/htmlparser/robot/nsRobotSink.cpp
jevering eb44f81303 Dont process anything but html files from within the debug robot.
ProcessLink() ignores anything else using a gawd-awful nasty hack.
1998-06-04 01:19:25 +00:00

292 lines
7.0 KiB
C++

/* -*- Mode: C++; tab-width: 2; 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.
*/
#include "nsIRobotSink.h"
#include "nsIRobotSinkObserver.h"
#include "nsIParserNode.h"
#include "nsParserTypes.h"
#include "nsString.h"
#include "nsIURL.h"
#include "nsCRT.h"
#include "nsVoidArray.h"
class nsIDocument;
// TODO
// - add in base tag support
// - get links from other sources:
// - LINK tag
// - STYLE SRC
// - IMG SRC
// - LAYER SRC
static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
static NS_DEFINE_IID(kIHTMLContentSinkIID, NS_IHTMLCONTENTSINK_IID);
static NS_DEFINE_IID(kIRobotSinkIID, NS_IROBOTSINK_IID);
class RobotSink : public nsIRobotSink {
public:
RobotSink();
~RobotSink();
void* operator new(size_t size) {
void* rv = ::operator new(size);
nsCRT::zero(rv, size);
return (void*) rv;
}
// nsISupports
NS_DECL_ISUPPORTS
// nsIHTMLContentSink
virtual PRInt32 SetTitle(const nsString& aValue);
virtual PRInt32 OpenHTML(const nsIParserNode& aNode);
virtual PRInt32 CloseHTML(const nsIParserNode& aNode);
virtual PRInt32 OpenHead(const nsIParserNode& aNode);
virtual PRInt32 CloseHead(const nsIParserNode& aNode);
virtual PRInt32 OpenBody(const nsIParserNode& aNode);
virtual PRInt32 CloseBody(const nsIParserNode& aNode);
virtual PRInt32 OpenForm(const nsIParserNode& aNode);
virtual PRInt32 CloseForm(const nsIParserNode& aNode);
virtual PRInt32 OpenFrameset(const nsIParserNode& aNode);
virtual PRInt32 CloseFrameset(const nsIParserNode& aNode);
virtual PRInt32 OpenContainer(const nsIParserNode& aNode);
virtual PRInt32 CloseContainer(const nsIParserNode& aNode);
virtual PRInt32 CloseTopmostContainer();
virtual PRInt32 AddLeaf(const nsIParserNode& aNode);
virtual void WillBuildModel(void) { }
virtual void DidBuildModel(void) { }
virtual void WillInterrupt(void) { }
virtual void WillResume(void) { }
// nsIRobotSink
NS_IMETHOD Init(nsIURL* aDocumentURL);
NS_IMETHOD AddObserver(nsIRobotSinkObserver* aObserver);
NS_IMETHOD RemoveObserver(nsIRobotSinkObserver* aObserver);
void ProcessLink(const nsString& aLink);
protected:
nsIURL* mDocumentURL;
nsVoidArray mObservers;
};
nsresult NS_NewRobotSink(nsIRobotSink** aInstancePtrResult)
{
RobotSink* it = new RobotSink();
return it->QueryInterface(kIRobotSinkIID, (void**) aInstancePtrResult);
}
RobotSink::RobotSink()
{
}
RobotSink::~RobotSink()
{
NS_IF_RELEASE(mDocumentURL);
PRInt32 i, n = mObservers.Count();
for (i = 0; i < n; i++) {
nsIRobotSinkObserver* cop = (nsIRobotSinkObserver*)mObservers.ElementAt(i);
NS_RELEASE(cop);
}
}
NS_IMPL_ADDREF(RobotSink);
NS_IMPL_RELEASE(RobotSink);
NS_IMETHODIMP RobotSink::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
if (NULL == aInstancePtr) {
return NS_ERROR_NULL_POINTER;
}
if (aIID.Equals(kIRobotSinkIID)) {
*aInstancePtr = (void*) this;
AddRef();
return NS_OK;
}
if (aIID.Equals(kIHTMLContentSinkIID)) {
*aInstancePtr = (void*) this;
AddRef();
return NS_OK;
}
if (aIID.Equals(kISupportsIID)) {
*aInstancePtr = (void*) ((nsISupports*)this);
AddRef();
return NS_OK;
}
return NS_NOINTERFACE;
}
PRInt32 RobotSink::SetTitle(const nsString& aValue)
{
return kNoError;
}
PRInt32 RobotSink::OpenHTML(const nsIParserNode& aNode)
{
return kNoError;
}
PRInt32 RobotSink::CloseHTML(const nsIParserNode& aNode)
{
return kNoError;
}
PRInt32 RobotSink::OpenHead(const nsIParserNode& aNode)
{
return kNoError;
}
PRInt32 RobotSink::CloseHead(const nsIParserNode& aNode)
{
return kNoError;
}
PRInt32 RobotSink::OpenBody(const nsIParserNode& aNode)
{
return kNoError;
}
PRInt32 RobotSink::CloseBody(const nsIParserNode& aNode)
{
return kNoError;
}
PRInt32 RobotSink::OpenForm(const nsIParserNode& aNode)
{
return kNoError;
}
PRInt32 RobotSink::CloseForm(const nsIParserNode& aNode)
{
return kNoError;
}
PRInt32 RobotSink::OpenFrameset(const nsIParserNode& aNode)
{
return kNoError;
}
PRInt32 RobotSink::CloseFrameset(const nsIParserNode& aNode)
{
return kNoError;
}
PRInt32 RobotSink::OpenContainer(const nsIParserNode& aNode)
{
nsAutoString tmp(aNode.GetText());
tmp.ToUpperCase();
if (tmp.Equals("A")) {
nsAutoString k, v;
PRInt32 ac = aNode.GetAttributeCount();
for (PRInt32 i = 0; i < ac; i++) {
// Get upper-cased key
const nsString& key = aNode.GetKeyAt(i);
k.Truncate();
k.Append(key);
k.ToUpperCase();
if (k.Equals("HREF")) {
// Get value and remove mandatory quotes
v.Truncate();
v.Append(aNode.GetValueAt(i));
PRUnichar first = v.First();
if ((first == '"') || (first == '\'')) {
if (v.Last() == first) {
v.Cut(0, 1);
PRInt32 pos = v.Length() - 1;
if (pos >= 0) {
v.Cut(pos, 1);
}
} else {
// Mismatched quotes - leave them in
}
}
ProcessLink(v);
}
}
}
return kNoError;
}
PRInt32 RobotSink::CloseContainer(const nsIParserNode& aNode)
{
return kNoError;
}
PRInt32 RobotSink::CloseTopmostContainer()
{
return kNoError;
}
PRInt32 RobotSink::AddLeaf(const nsIParserNode& aNode)
{
return kNoError;
}
NS_IMETHODIMP RobotSink::Init(nsIURL* aDocumentURL)
{
NS_IF_RELEASE(mDocumentURL);
mDocumentURL = aDocumentURL;
NS_IF_ADDREF(aDocumentURL);
return NS_OK;
}
NS_IMETHODIMP RobotSink::AddObserver(nsIRobotSinkObserver* aObserver)
{
if (mObservers.AppendElement(aObserver)) {
NS_ADDREF(aObserver);
return NS_OK;
}
return NS_ERROR_OUT_OF_MEMORY;
}
NS_IMETHODIMP RobotSink::RemoveObserver(nsIRobotSinkObserver* aObserver)
{
if (mObservers.RemoveElement(aObserver)) {
NS_RELEASE(aObserver);
return NS_OK;
}
//XXX return NS_ERROR_NOT_FOUND;
return NS_OK;
}
void RobotSink::ProcessLink(const nsString& aLink)
{
nsAutoString absURLSpec(aLink);
// Make link absolute
// XXX base tag handling
nsIURL* docURL = mDocumentURL;
if (nsnull != docURL) {
nsIURL* absurl;
nsresult rv = NS_NewURL(&absurl, docURL, aLink);
if (NS_OK == rv) {
absURLSpec.Truncate();
absurl->ToString(absURLSpec);
NS_RELEASE(absurl);
}
}
// Now give link to robot observers
PRInt32 i, n = mObservers.Count();
for (i = 0; i < n; i++) {
nsIRobotSinkObserver* cop = (nsIRobotSinkObserver*)mObservers.ElementAt(i);
cop->ProcessLink(absURLSpec);
}
}