gecko-dev/dom/xslt/base/txURIUtils.cpp

82 lines
2.6 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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/. */
#include "txURIUtils.h"
#include "nsNetUtil.h"
#include "nsIDocument.h"
#include "nsIPrincipal.h"
#include "mozilla/LoadInfo.h"
using mozilla::LoadInfo;
/**
* URIUtils
* A set of utilities for handling URIs
**/
/**
* Resolves the given href argument, using the given documentBase
* if necessary.
* The new resolved href will be appended to the given dest String
**/
void URIUtils::resolveHref(const nsAString& href, const nsAString& base,
nsAString& dest) {
if (base.IsEmpty()) {
dest.Append(href);
return;
}
if (href.IsEmpty()) {
dest.Append(base);
return;
}
nsCOMPtr<nsIURI> pURL;
nsAutoString resultHref;
nsresult result = NS_NewURI(getter_AddRefs(pURL), base);
if (NS_SUCCEEDED(result)) {
NS_MakeAbsoluteURI(resultHref, href, pURL);
dest.Append(resultHref);
}
} //-- resolveHref
// static
void
URIUtils::ResetWithSource(nsIDocument *aNewDoc, nsIDOMNode *aSourceNode)
{
nsCOMPtr<nsINode> node = do_QueryInterface(aSourceNode);
if (!node) {
// XXXbz passing nullptr as the first arg to Reset is illegal
aNewDoc->Reset(nullptr, nullptr);
return;
}
nsCOMPtr<nsIDocument> sourceDoc = node->OwnerDoc();
nsIPrincipal* sourcePrincipal = sourceDoc->NodePrincipal();
// Copy the channel and loadgroup from the source document.
nsCOMPtr<nsILoadGroup> loadGroup = sourceDoc->GetDocumentLoadGroup();
nsCOMPtr<nsIChannel> channel = sourceDoc->GetChannel();
if (!channel) {
// Need to synthesize one
if (NS_FAILED(NS_NewChannel(getter_AddRefs(channel),
sourceDoc->GetDocumentURI(),
nullptr,
loadGroup))) {
return;
}
nsCOMPtr<nsILoadInfo> loadInfo =
new LoadInfo(sourcePrincipal, LoadInfo::eInheritPrincipal,
LoadInfo::eNotSandboxed);
channel->SetLoadInfo(loadInfo);
}
aNewDoc->Reset(channel, loadGroup);
aNewDoc->SetPrincipal(sourcePrincipal);
aNewDoc->SetBaseURI(sourceDoc->GetDocBaseURI());
// Copy charset
aNewDoc->SetDocumentCharacterSetSource(
sourceDoc->GetDocumentCharacterSetSource());
aNewDoc->SetDocumentCharacterSet(sourceDoc->GetDocumentCharacterSet());
}