The Tor Browser: editor/libeditor/html/nsHTMLURIRefObject.cpp@7e26c7da4463 (annotated)

editor/libeditor/html/nsHTMLURIRefObject.cpp@7e26c7da4463 (annotated)

editor/libeditor/html/nsHTMLURIRefObject.cpp

Wed, 31 Dec 2014 06:55:50 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:55:50 +0100
changeset 2: 7e26c7da4463
permissions: -rw-r--r--

Added tag UPSTREAM_283F7C6 for changeset ca08bd8f51b2

 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 /* Here is the list, from beppe and glazman:
     href >> A, AREA, BASE, LINK
     src >> FRAME, IFRAME, IMG, INPUT, SCRIPT
     <META http-equiv="refresh" content="3,http://www.acme.com/intro.html">
     longdesc >> FRAME, IFRAME, IMG
     usemap >> IMG, INPUT, OBJECT
     action >> FORM
     background >> BODY
     codebase >> OBJECT, APPLET
     classid >> OBJECT
     data >> OBJECT
     cite >> BLOCKQUOTE, DEL, INS, Q
     profile >> HEAD
     ARCHIVE attribute on APPLET ; warning, it contains a list of URIs.
     Easier way of organizing the list:
     a:      href
     area:   href
     base:   href
     body:   background
     blockquote: cite (not normally rewritable)
     link:   href
     frame:  src, longdesc
     iframe: src, longdesc
     input:  src, usemap
     form:   action
     img:    src, longdesc, usemap
     script: src
     applet: codebase, archive <list>
     object: codebase, data, classid, usemap
     head:   profile
     del:    cite
     ins:    cite
     q:      cite
  */
 /* Here is how to open a channel for testing
    (from embed/qa/testembed/Tests.cpp):
   nsCOMPtr<nsIChannel> theChannel;
   nsCString uri;
   nsCOMPtr<nsIURI> theURI;
   rv = NS_NewURI(getter_AddRefs(theURI), theSpec);
   if (!theURI)
     error;
   rv = NS_OpenURI(getter_AddRefs(theChannel), theURI, nullptr, theLoadGroup);
   if (!theChannel)
     error;
   nsCOMPtr<nsILoadGroup> theLoadGroup(do_CreateInstance(NS_LOADGROUP_CONTRACTID));
   if (!theLoadGroup)
     error;
 		nsCOMPtr<nsIStreamListener> listener(static_cast<nsIStreamListener*>(qaBrowserImpl));
 		//nsCOMPtr<nsIWeakReference> thisListener(do_GetWeakReference(listener));
 		//qaWebBrowser->AddWebBrowserListener(thisListener, NS_GET_IID(nsIStreamListener));
 		// this calls nsIStreamListener::OnDataAvailable()
 		rv = theChannel->AsyncOpen(listener, nullptr);
 		nsCOMPtr<nsIRequest> theRequest = do_QueryInterface(theChannel);
     // Now we can do things on nsIRequest (like what?)
  */
 #include "mozilla/mozalloc.h"
 #include "nsAString.h"
 #include "nsDebug.h"
 #include "nsError.h"
 #include "nsHTMLURIRefObject.h"
 #include "nsID.h"
 #include "nsIDOMAttr.h"
 #include "nsIDOMElement.h"
 #include "nsIDOMMozNamedAttrMap.h"
 #include "nsIDOMNode.h"
 #include "nsISupportsUtils.h"
 #include "nsString.h"
 // String classes change too often and I can't keep up.
 // Set this macro to this week's approved case-insensitive compare routine.
 #define MATCHES(tagName, str) tagName.EqualsIgnoreCase(str)
 nsHTMLURIRefObject::nsHTMLURIRefObject()
 {
   mCurAttrIndex = mAttributeCnt = 0;
 }
 nsHTMLURIRefObject::~nsHTMLURIRefObject()
 {
 }
 //Interfaces for addref and release and queryinterface
 NS_IMPL_ISUPPORTS(nsHTMLURIRefObject, nsIURIRefObject)
 NS_IMETHODIMP
 nsHTMLURIRefObject::Reset()
 {
   mCurAttrIndex = 0;
   return NS_OK;
 }
 NS_IMETHODIMP
 nsHTMLURIRefObject::GetNextURI(nsAString & aURI)
 {
   NS_ENSURE_TRUE(mNode, NS_ERROR_NOT_INITIALIZED);
   nsAutoString tagName;
   nsresult rv = mNode->GetNodeName(tagName);
   NS_ENSURE_SUCCESS(rv, rv);
   // Loop over attribute list:
   if (!mAttributes)
   {
     nsCOMPtr<nsIDOMElement> element (do_QueryInterface(mNode));
     NS_ENSURE_TRUE(element, NS_ERROR_INVALID_ARG);
     mCurAttrIndex = 0;
     element->GetAttributes(getter_AddRefs(mAttributes));
     NS_ENSURE_TRUE(mAttributes, NS_ERROR_NOT_INITIALIZED);
     rv = mAttributes->GetLength(&mAttributeCnt);
     NS_ENSURE_SUCCESS(rv, rv);
     NS_ENSURE_TRUE(mAttributeCnt, NS_ERROR_FAILURE);
     mCurAttrIndex = 0;
   }
 #ifdef DEBUG_akkana
   printf("Looking at tag '%s'\n",
          NS_LossyConvertUTF16toASCII(tagName).get());
 #endif
   while (mCurAttrIndex < mAttributeCnt)
   {
     nsCOMPtr<nsIDOMAttr> attrNode;
     rv = mAttributes->Item(mCurAttrIndex++, getter_AddRefs(attrNode));
     NS_ENSURE_SUCCESS(rv, rv);
     NS_ENSURE_ARG_POINTER(attrNode);
     nsString curAttr;
     rv = attrNode->GetName(curAttr);
     NS_ENSURE_SUCCESS(rv, rv);
     // href >> A, AREA, BASE, LINK
 #ifdef DEBUG_akkana
     printf("Trying to match attribute '%s'\n",
            NS_LossyConvertUTF16toASCII(curAttr).get());
 #endif
     if (MATCHES(curAttr, "href"))
     {
       if (!MATCHES(tagName, "a") && !MATCHES(tagName, "area")
           && !MATCHES(tagName, "base") && !MATCHES(tagName, "link"))
         continue;
       rv = attrNode->GetValue(aURI);
       NS_ENSURE_SUCCESS(rv, rv);
       nsString uri (aURI);
       // href pointing to a named anchor doesn't count
       if (aURI.First() != char16_t('#'))
         return NS_OK;
       aURI.Truncate();
       return NS_ERROR_INVALID_ARG;
     }
     // src >> FRAME, IFRAME, IMG, INPUT, SCRIPT
     else if (MATCHES(curAttr, "src"))
     {
       if (!MATCHES(tagName, "img")
           && !MATCHES(tagName, "frame") && !MATCHES(tagName, "iframe")
           && !MATCHES(tagName, "input") && !MATCHES(tagName, "script"))
         continue;
       return attrNode->GetValue(aURI);
     }
     //<META http-equiv="refresh" content="3,http://www.acme.com/intro.html">
     else if (MATCHES(curAttr, "content"))
     {
       if (!MATCHES(tagName, "meta"))
         continue;
     }
     // longdesc >> FRAME, IFRAME, IMG
     else if (MATCHES(curAttr, "longdesc"))
     {
       if (!MATCHES(tagName, "img")
           && !MATCHES(tagName, "frame") && !MATCHES(tagName, "iframe"))
         continue;
     }
     // usemap >> IMG, INPUT, OBJECT
     else if (MATCHES(curAttr, "usemap"))
     {
       if (!MATCHES(tagName, "img")
           && !MATCHES(tagName, "input") && !MATCHES(tagName, "object"))
         continue;
     }
     // action >> FORM
     else if (MATCHES(curAttr, "action"))
     {
       if (!MATCHES(tagName, "form"))
         continue;
     }
     // background >> BODY
     else if (MATCHES(curAttr, "background"))
     {
       if (!MATCHES(tagName, "body"))
         continue;
     }
     // codebase >> OBJECT, APPLET
     else if (MATCHES(curAttr, "codebase"))
     {
       if (!MATCHES(tagName, "meta"))
         continue;
     }
     // classid >> OBJECT
     else if (MATCHES(curAttr, "classid"))
     {
       if (!MATCHES(tagName, "object"))
         continue;
     }
     // data >> OBJECT
     else if (MATCHES(curAttr, "data"))
     {
       if (!MATCHES(tagName, "object"))
         continue;
     }
     // cite >> BLOCKQUOTE, DEL, INS, Q
     else if (MATCHES(curAttr, "cite"))
     {
       if (!MATCHES(tagName, "blockquote") && !MATCHES(tagName, "q")
           && !MATCHES(tagName, "del") && !MATCHES(tagName, "ins"))
         continue;
     }
     // profile >> HEAD
     else if (MATCHES(curAttr, "profile"))
     {
       if (!MATCHES(tagName, "head"))
         continue;
     }
     // archive attribute on APPLET; warning, it contains a list of URIs.
     else if (MATCHES(curAttr, "archive"))
     {
       if (!MATCHES(tagName, "applet"))
         continue;
     }
   }
   // Return a code to indicate that there are no more,
   // to distinguish that case from real errors.
   return NS_ERROR_NOT_AVAILABLE;
 }
 NS_IMETHODIMP
 nsHTMLURIRefObject::RewriteAllURIs(const nsAString & aOldPat,
                             const nsAString & aNewPat,
                             bool aMakeRel)
 {
 #ifdef DEBUG_akkana
   printf("Can't rewrite URIs yet\n");
 #endif
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 nsHTMLURIRefObject::GetNode(nsIDOMNode** aNode)
 {
   NS_ENSURE_TRUE(mNode, NS_ERROR_NOT_INITIALIZED);
   NS_ENSURE_TRUE(aNode, NS_ERROR_NULL_POINTER);
   *aNode = mNode.get();
   NS_ADDREF(*aNode);
   return NS_OK;
 }
 NS_IMETHODIMP
 nsHTMLURIRefObject::SetNode(nsIDOMNode *aNode)
 {
   mNode = aNode;
   nsAutoString dummyURI;
   if (NS_SUCCEEDED(GetNextURI(dummyURI)))
   {
     mCurAttrIndex = 0;    // Reset so we'll get the first node next time
     return NS_OK;
   }
   // If there weren't any URIs in the attributes,
   // then don't accept this node.
   mNode = 0;
   return NS_ERROR_INVALID_ARG;
 }
 nsresult NS_NewHTMLURIRefObject(nsIURIRefObject** aResult, nsIDOMNode* aNode)
 {
   nsHTMLURIRefObject* refObject = new nsHTMLURIRefObject();
   nsresult rv = refObject->SetNode(aNode);
   if (NS_FAILED(rv)) {
     *aResult = 0;
     delete refObject;
     return rv;
   }
   return refObject->QueryInterface(NS_GET_IID(nsIURIRefObject),
                                    (void**)aResult);
 }

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editor/libeditor/html/nsHTMLURIRefObject.cpp@7e26c7da4463 (annotated)

editor/libeditor/html/nsHTMLURIRefObject.cpp