C++ IE探索11<;c++;用于替换DOM中文本的ATL COM浏览器辅助对象(加载项)
我试图使用BHO从IE11的Dom中删除一行Javascript。(Internet Explorer加载项) 这是如此糟糕的记录,很难看到最好的前进之路C++ IE探索11<;c++;用于替换DOM中文本的ATL COM浏览器辅助对象(加载项),c++,internet-explorer,com,atl,bho,C++,Internet Explorer,Com,Atl,Bho,我试图使用BHO从IE11的Dom中删除一行Javascript。(Internet Explorer加载项) 这是如此糟糕的记录,很难看到最好的前进之路 IE设法在C++ ATL/COM中编写了BHO,并且它的工作很好,但是我不能很好地找出从正文中删除/替换文本的最佳方法,然后将更改注入到页面中。 老实说,我还没来得及读这本1000页的过时的COM书籍:-) 这是我目前为OnDocumentComplete活动准备的内容: void STDMETHODCALLTYPE CMyFooBHO::
IE设法在C++ ATL/COM中编写了BHO,并且它的工作很好,但是我不能很好地找出从正文中删除/替换文本的最佳方法,然后将更改注入到页面中。 老实说,我还没来得及读这本1000页的过时的COM书籍:-)
这是我目前为OnDocumentComplete活动准备的内容:void STDMETHODCALLTYPE CMyFooBHO::OnDocumentComplete(IDispatch *pDisp, VARIANT *pvarURL)
{
BSTR bstrURL = pvarURL->bstrVal;
if (_wcsicmp(bstrURL, ABOUT_BLANK) == 0)
{
return;
}
HRESULT hr = S_OK;
// Query for the IWebBrowser2 interface.
CComQIPtr<IWebBrowser2> spTempWebBrowser = pDisp;
// Is this event associated with the top-level browser?
if (spTempWebBrowser && m_spWebBrowser && m_spWebBrowser.IsEqualObject(spTempWebBrowser))
{
// Get the current document object from browser.
CComPtr<IDispatch> spDispDoc;
hr = m_spWebBrowser->get_Document(&spDispDoc);
if (SUCCEEDED(hr))
{
// Verify that what we get is a pointer to a IHTMLDocument2 interface.
// To be sure, let's query for the IHTMLDocument2 interface (through smart pointers).
CComQIPtr<IHTMLDocument2, &IID_IHTMLDocument2> spHTML;
spHTML = spDispDoc;
// Extract the source of the document if its HTML.
if (spHTML)
{
// Get the BODY object.
CComPtr<IHTMLElement> m_pBody;
hr = spHTML->get_body(&m_pBody);
if (SUCCEEDED(hr))
{
// Get the HTML text.
BSTR bstrHTMLText;
hr = m_pBody->get_outerHTML(&bstrHTMLText);
if (SUCCEEDED(hr))
{
// bstrHTMLText now contains the <body> ...whatever... </body> of the html page.
// ******** HERE ********
// What I want to do here is replace some text contained in bstrHTMLText
// i.e. Replace "ABC" with "DEF" if it exists in bstrHTMLText.
// Then replace the body of the original page with the edited bstrHTMLText.
// My actual goal is to remove one line of javascript.
}
}
}
}
}
}
void STDMETHODCALLTYPE CMyFooBHO::OnDocumentComplete(IDispatch*pDisp,VARIANT*pvarURL)
{
BSTR bstrURL=pvarURL->bstrVal;
if(_wcsicmp(bstrURL,约为_BLANK)==0)
{
返回;
}
HRESULT hr=S_正常;
//查询IWebBrowser2接口。
CComQIPtr spTempWebBrowser=pDisp;
//此事件是否与顶级浏览器关联?
if(spTempWebBrowser和&m_spWebBrowser和&m_spWebBrowser.IsEqualObject(spTempWebBrowser))
{
//从浏览器中获取当前文档对象。
CComPtr spDispDoc;
hr=m_spWebBrowser->get_Document(&spDispDoc);
如果(成功(hr))
{
//验证我们得到的是指向IHTMLDocument2接口的指针。
//当然,让我们(通过智能指针)查询IHTMLDocument2接口。
CCOMKIPTR spHTML;
spHTML=spDispDoc;
//提取文档的源代码(如果是HTML)。
if(spHTML)
{
//获取身体对象。
货币发行人;
hr=spHTML->get_body(&m_pBody);
如果(成功(hr))
{
//获取HTML文本。
BSTR bstrHTMLText;
hr=m_pBody->get_outerHTML(&bstrHTMLText);
如果(成功(hr))
{
//bstrHTMLText现在包含html页面的…无论如何。
//**********这里********
//这里我要做的是替换BSTRHTMLEXT中包含的一些文本
//即,如果BSTRHTMLEXT中存在“ABC”,则将其替换为“DEF”。
//然后将原始页面的正文替换为已编辑的bstrHTMLText。
//我的实际目标是删除一行javascript。
}
}
}
}
}
}
请随意评论对现有代码的任何改进。这里是另一种方法,使用JavaScript
var oCollection = document.getElementsByTagName("script");
var nColCount = oCollection.length;
var nIndex;
for ( nIndex = 0; nIndex < nColCount; ++nIndex ) {
var oScript = oCollection[ nIndex ];
var strScriptText = oScript.innerHTML;
if ( strScriptText.indexOf( "alert(\"hello\");" ) != -1 ) {
var strNewText = strScriptText.replace( "alert(\"hello\");", "" );
var oNewScript = document.createElement("script");
oNewScript.type = "text\/javascript";
oNewScript.text = strNewText;
document.getElementsByTagName("head")[0].appendChild(oNewScript);
console.log ("DONE!");
}
}
这不符合正常的(应该做的)方式 如果没有更好的答案,那么我想这是最好的答案,我会这样做 我希望听到任何意见或更新,以改善,或给我一个工作的例子,这是更好的
这是IE 11,在Visual Studio 2015中使用C++ ATL/COM编译。 我已经尝试过迭代DOM并对其进行更改,以及其他所有记录得非常糟糕的变体
在读取html时,似乎从来没有出现过问题,即在中获取\u innerText获取\u innerHTML获取\u outerHTML 它的形式多种多样,但它似乎从来没有发挥过主要作用。为什么?似乎没有人能告诉我,也没有人能告诉我 这是一个可行的例子 我发现get_body>get_innerHTML>put_innerHTML似乎确实有效 因此,为了找到这一点,我只编写了一个函数来在CComBSTR中搜索和替换 这对我来说是可行的,但我想您可以将返回的内容作为主体内部HTML并运行其他一些 如果您的需求不同,则在其上添加DOM操作代码(而不是内置代码) 这种方法的主要优点是不依赖于c**p未记录的代码 用某种神秘的方法当MS想要的时候这是测试html页面。我正在尝试删除“警报(“你好”)”即 当页面完成加载时执行
<!doctype html>
<head>
<title>Site</title>
<meta http-equiv="cache-control" content="max-age=0" />
<meta http-equiv="cache-control" content="no-cache" />
<meta http-equiv="expires" content="0" />
<meta http-equiv="expires" content="Tue, 01 Jan 1980 1:00:00 GMT" />
<meta http-equiv="pragma" content="no-cache" />
</head>
<body>
<div>If a dialog with hello appears then the BHO failed</div>
<script type="text/javascript">
window.onload = function(){
window.document.body.onload = foo;
};
function foo()
{
alert("hello");
}
</script>
</body>
<html>
场地
如果出现带有hello的对话框,则BHO失败
window.onload=函数(){
window.document.body.onload=foo;
};
函数foo()
{
警惕(“你好”);
}
//FooBHO.h:CFooBHO的声明
#布拉格语一次
#包括“resource.h”//main符号
#包括“FooIEAddOn_i.h”
#包括//IID_IWebBrowser2、DIID_DWebBrowserEvents 2等。
#包括//DISPID\u DOCUMENTCOMPLETE等。
#包含//DOM接口
#包括
#如果已定义(_WIN32_WCE)&&!已定义(\u CE\u DCOM)&!已定义(\u CE\u允许\u单线程\u对象\u在\u MTA中)
#错误“Windows CE平台不正确支持单线程COM对象,例如不包括完全DCOM支持的Windows Mobile平台。在MTA中定义\u CE\u允许\u单线程\u对象\u强制ATL支持创建单线程COM对象,并允许使用其单线程COM对象实现。rgs文件中的线程模型已设置为“自由”,因为这是非DCOM Windows CE平台支持的唯一线程模型。”
#恩迪夫
#定义DISPID_DOCUMENTRELOAD 282
使用名称空间ATL;
使用名称空间std;
//CFooBHO
类别ATL_NO_VTABLE CFooBHO:公共CComObjectRootEx,
公共课程,
具有SiteImpl的公共对象,
公共场所,
公共IDispenTempl
{
公众:
CFooBHO()
{
}
//STDMETHOD宏是一种ATL约定,它将该方法标记为虚拟方法,并确保该方法具有正确的公共调用约定
//COM接口。它有助于将COM接口与可能存在的其他公共方法区分开来
<!doctype html>
<head>
<title>Site</title>
<meta http-equiv="cache-control" content="max-age=0" />
<meta http-equiv="cache-control" content="no-cache" />
<meta http-equiv="expires" content="0" />
<meta http-equiv="expires" content="Tue, 01 Jan 1980 1:00:00 GMT" />
<meta http-equiv="pragma" content="no-cache" />
</head>
<body>
<div>If a dialog with hello appears then the BHO failed</div>
<script type="text/javascript">
window.onload = function(){
window.document.body.onload = foo;
};
function foo()
{
alert("hello");
}
</script>
</body>
<html>
// FooBHO.h : Declaration of the CFooBHO
#pragma once
#include "resource.h" // main symbols
#include "FooIEAddOn_i.h"
#include <shlguid.h> // IID_IWebBrowser2, DIID_DWebBrowserEvents2, etc.
#include <exdispid.h> // DISPID_DOCUMENTCOMPLETE, etc.
#include <mshtml.h> // DOM interfaces
#include <string>
#if defined(_WIN32_WCE) && !defined(_CE_DCOM) && !defined(_CE_ALLOW_SINGLE_THREADED_OBJECTS_IN_MTA)
#error "Single-threaded COM objects are not properly supported on Windows CE platform, such as the Windows Mobile platforms that do not include full DCOM support. Define _CE_ALLOW_SINGLE_THREADED_OBJECTS_IN_MTA to force ATL to support creating single-thread COM object's and allow use of it's single-threaded COM object implementations. The threading model in your rgs file was set to 'Free' as that is the only threading model supported in non DCOM Windows CE platforms."
#endif
#define DISPID_DOCUMENTRELOAD 282
using namespace ATL;
using namespace std;
// CFooBHO
class ATL_NO_VTABLE CFooBHO : public CComObjectRootEx<CComSingleThreadModel>,
public CComCoClass<CFooBHO, &CLSID_FooBHO>,
public IObjectWithSiteImpl<CFooBHO>,
public IDispatchImpl<IFooBHO, &IID_IFooBHO, &LIBID_FooIEAddOnLib, /*wMajor =*/ 1, /*wMinor =*/ 0>,
public IDispEventImpl<1, CFooBHO, &DIID_DWebBrowserEvents2, &LIBID_SHDocVw, 1, 1>
{
public:
CFooBHO()
{
}
// The STDMETHOD macro is an ATL convention that marks the method as virtual and ensures that it has the right calling convention for the public
// COM interface.It helps to demarcate COM interfaces from other public methods that may exist on the class.The STDMETHODIMP macro is likewise used
// when implementing the member method.
STDMETHOD(SetSite)(IUnknown *pUnkSite);
DECLARE_REGISTRY_RESOURCEID(IDR_FooBHO)
DECLARE_NOT_AGGREGATABLE(CFooBHO)
BEGIN_COM_MAP(CFooBHO)
COM_INTERFACE_ENTRY(IFooBHO)
COM_INTERFACE_ENTRY(IDispatch)
COM_INTERFACE_ENTRY(IObjectWithSite)
END_COM_MAP()
DECLARE_PROTECT_FINAL_CONSTRUCT()
BEGIN_SINK_MAP(CFooBHO)
SINK_ENTRY_EX(1, DIID_DWebBrowserEvents2, DISPID_DOCUMENTCOMPLETE, OnDocumentComplete)
END_SINK_MAP()
void STDMETHODCALLTYPE OnDocumentComplete(IDispatch *pDisp, VARIANT *pvarURL);
HRESULT FinalConstruct()
{
return S_OK;
}
void FinalRelease()
{
}
private:
CComPtr<IWebBrowser2> m_spWebBrowser;
BOOL m_fAdvised;
static const wchar_t* ABOUT_BLANK;
void CFooBHO::ReplaceInCComBSTR(CComBSTR &strInput, const wstring &strOld, const wstring &strNew);
};
OBJECT_ENTRY_AUTO(__uuidof(FooBHO), CFooBHO)
// FooBHO.cpp : Implementation of CFooBHO
#include "stdafx.h"
#include "FooBHO.h"
#include "Strsafe.h"
const wchar_t* CFooBHO::ABOUT_BLANK = L"about:blank";
// The SetSite() method is where the BHO is initialized and where you would perform all the tasks that happen only
// once. When you navigate to a URL with Internet Explorer, you should wait for a couple of events to make sure the
// required document has been completely downloaded and then initialized. Only at this point can you safely access
// its content through the exposed object model, if any.
STDMETHODIMP CFooBHO::SetSite(IUnknown* pUnkSite)
{
if (pUnkSite != NULL)
{
// Cache the pointer to IWebBrowser2.
HRESULT hr = pUnkSite->QueryInterface(IID_IWebBrowser2, (void **)&m_spWebBrowser);
if (SUCCEEDED(hr))
{
// Register to sink events from DWebBrowserEvents2.
hr = DispEventAdvise(m_spWebBrowser);
if (SUCCEEDED(hr))
{
m_fAdvised = TRUE;
}
}
}
else
{
// Unregister event sink.
if (m_fAdvised)
{
DispEventUnadvise(m_spWebBrowser);
m_fAdvised = FALSE;
}
// Release cached pointers and other resources here.
m_spWebBrowser.Release();
}
// Call base class implementation.
return IObjectWithSiteImpl<CFooBHO>::SetSite(pUnkSite);
}
void STDMETHODCALLTYPE CFooBHO::OnDocumentComplete(IDispatch *pDisp, VARIANT *pvarURL)
{
BSTR bstrURL = pvarURL->bstrVal;
// Test for any specific URL here.
// Currently we are ignoring ABOUT:BLANK but allowing everything else.
if (_wcsicmp(bstrURL, ABOUT_BLANK) == 0)
{
return;
}
HRESULT hr = S_OK;
// Query for the IWebBrowser2 interface.
CComQIPtr<IWebBrowser2> spTempWebBrowser = pDisp;
// Is this event associated with the top-level browser?
if (spTempWebBrowser && m_spWebBrowser && m_spWebBrowser.IsEqualObject(spTempWebBrowser))
{
// Get the current document object from browser.
CComPtr<IDispatch> spDispDoc;
if (SUCCEEDED(m_spWebBrowser->get_Document(&spDispDoc)))
{
// Verify that what we get is a pointer to a IHTMLDocument2 interface.
// To be sure, let's query for the IHTMLDocument2 interface (through smart pointers).
CComQIPtr<IHTMLDocument2, &IID_IHTMLDocument2> spHTMLDocument2 = spDispDoc;
// Extract the source of the document if its HTML.
if (spHTMLDocument2)
{
// Get the BODY object.
CComPtr<IHTMLElement> spBody;
if (SUCCEEDED(spHTMLDocument2->get_body(&spBody)))
{
// Get the Body HTML text.
CComBSTR bstrBodyHTMLText;
if (SUCCEEDED(spBody->get_innerHTML(&bstrBodyHTMLText)))
{
ReplaceInCComBSTR(bstrBodyHTMLText, L"alert(\"hello\");", L"");
spBody->put_innerHTML(bstrBodyHTMLText);
}
}
}
}
}
}
void CFooBHO::ReplaceInCComBSTR(CComBSTR &bstrInput, const wstring &strOld, const wstring &strNew)
{
wstring strOutput(bstrInput);
size_t iPos = 0;
size_t iLpos = 0;
while ((iPos = strOutput.find(strOld, iLpos)) != string::npos)
{
strOutput.replace(iPos, strOld.length(), strNew);
iLpos = iPos + 1;
}
::SysFreeString(bstrInput.m_str);
// Find and replace is complete; now update the CComBSTR.
bstrInput.m_str = ::SysAllocString(strOutput.c_str());
}