michael@0: /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "txXMLParser.h"
michael@0: #include "txURIUtils.h"
michael@0: #include "txXPathTreeWalker.h"
michael@0: 
michael@0: #include "nsIDocument.h"
michael@0: #include "nsIDOMDocument.h"
michael@0: #include "nsSyncLoadService.h"
michael@0: #include "nsNetUtil.h"
michael@0: #include "nsIPrincipal.h"
michael@0: 
michael@0: nsresult
michael@0: txParseDocumentFromURI(const nsAString& aHref, const txXPathNode& aLoader,
michael@0:                        nsAString& aErrMsg, txXPathNode** aResult)
michael@0: {
michael@0:     NS_ENSURE_ARG_POINTER(aResult);
michael@0:     *aResult = nullptr;
michael@0:     nsCOMPtr<nsIURI> documentURI;
michael@0:     nsresult rv = NS_NewURI(getter_AddRefs(documentURI), aHref);
michael@0:     NS_ENSURE_SUCCESS(rv, rv);
michael@0: 
michael@0:     nsIDocument* loaderDocument = txXPathNativeNode::getDocument(aLoader);
michael@0: 
michael@0:     nsCOMPtr<nsILoadGroup> loadGroup = loaderDocument->GetDocumentLoadGroup();
michael@0: 
michael@0:     // For the system principal loaderUri will be null here, which is good
michael@0:     // since that means that chrome documents can load any uri.
michael@0: 
michael@0:     // Raw pointer, we want the resulting txXPathNode to hold a reference to
michael@0:     // the document.
michael@0:     nsIDOMDocument* theDocument = nullptr;
michael@0:     nsAutoSyncOperation sync(loaderDocument);
michael@0:     rv = nsSyncLoadService::LoadDocument(documentURI,
michael@0:                                          loaderDocument->NodePrincipal(),
michael@0:                                          loadGroup, true, &theDocument);
michael@0: 
michael@0:     if (NS_FAILED(rv)) {
michael@0:         aErrMsg.Append(NS_LITERAL_STRING("Document load of ") + 
michael@0:                        aHref + NS_LITERAL_STRING(" failed."));
michael@0:         return NS_FAILED(rv) ? rv : NS_ERROR_FAILURE;
michael@0:     }
michael@0: 
michael@0:     *aResult = txXPathNativeNode::createXPathNode(theDocument);
michael@0:     if (!*aResult) {
michael@0:         NS_RELEASE(theDocument);
michael@0:         return NS_ERROR_FAILURE;
michael@0:     }
michael@0: 
michael@0:     return NS_OK;
michael@0: }