mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
437 lines
11 KiB
C++
437 lines
11 KiB
C++
/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2010
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsFileDataProtocolHandler.h"
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#include "nsNetCID.h"
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#include "nsDOMError.h"
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#include "nsCOMPtr.h"
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#include "nsClassHashtable.h"
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#include "nsNetUtil.h"
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#include "nsIURIWithPrincipal.h"
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#include "nsIPrincipal.h"
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#include "nsIFileChannel.h"
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#include "nsISerializable.h"
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#include "nsIClassInfo.h"
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#include "nsIObjectInputStream.h"
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#include "nsIObjectOutputStream.h"
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#include "nsIProgrammingLanguage.h"
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static NS_DEFINE_CID(kSimpleURICID, NS_SIMPLEURI_CID);
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// -----------------------------------------------------------------------
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// Hash table
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struct FileDataInfo
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{
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nsCOMPtr<nsIURI> mFileUri;
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nsCOMPtr<nsIPrincipal> mPrincipal;
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};
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static nsClassHashtable<nsCStringHashKey, FileDataInfo>* gFileDataTable;
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void
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nsFileDataProtocolHandler::AddFileDataEntry(nsACString& aUri, nsIFile* aFile,
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nsIPrincipal* aPrincipal)
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{
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if (!gFileDataTable) {
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gFileDataTable = new nsClassHashtable<nsCStringHashKey, FileDataInfo>;
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gFileDataTable->Init();
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}
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FileDataInfo* info = new FileDataInfo;
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NS_NewFileURI(getter_AddRefs(info->mFileUri), aFile);
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info->mPrincipal = aPrincipal;
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gFileDataTable->Put(aUri, info);
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}
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void
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nsFileDataProtocolHandler::RemoveFileDataEntry(nsACString& aUri)
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{
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if (gFileDataTable) {
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gFileDataTable->Remove(aUri);
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if (gFileDataTable->Count() == 0) {
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delete gFileDataTable;
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gFileDataTable = nsnull;
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}
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}
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}
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static FileDataInfo*
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GetFileDataInfo(const nsACString& aUri)
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{
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NS_ASSERTION(StringBeginsWith(aUri,
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NS_LITERAL_CSTRING(FILEDATA_SCHEME ":")),
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"Bad URI");
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if (!gFileDataTable) {
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return nsnull;
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}
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FileDataInfo* res;
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gFileDataTable->Get(aUri, &res);
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return res;
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}
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// -----------------------------------------------------------------------
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// Uri
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#define NS_FILEDATAURI_CID \
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{ 0xf5475c51, 0x59a7, 0x4757, \
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{ 0xb3, 0xd9, 0xe2, 0x11, 0xa9, 0x41, 0x08, 0x72 } }
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static NS_DEFINE_CID(kFILEDATAURICID, NS_FILEDATAURI_CID);
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// Use an extra base object to avoid having to manually retype all the
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// nsIURI methods. I wish we could just inherit from nsSimpleURI instead.
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class nsFileDataURI_base : public nsIURI,
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public nsIMutable
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{
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public:
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nsFileDataURI_base(nsIURI* aSimpleURI) :
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mSimpleURI(aSimpleURI)
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{
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mMutable = do_QueryInterface(mSimpleURI);
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NS_ASSERTION(aSimpleURI && mMutable, "This isn't going to work out");
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}
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virtual ~nsFileDataURI_base() {}
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// For use only from deserialization
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nsFileDataURI_base() {}
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NS_FORWARD_NSIURI(mSimpleURI->)
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NS_FORWARD_NSIMUTABLE(mMutable->)
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protected:
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nsCOMPtr<nsIURI> mSimpleURI;
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nsCOMPtr<nsIMutable> mMutable;
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};
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class nsFileDataURI : public nsFileDataURI_base,
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public nsIURIWithPrincipal,
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public nsISerializable,
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public nsIClassInfo
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{
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public:
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nsFileDataURI(nsIPrincipal* aPrincipal, nsIURI* aSimpleURI) :
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nsFileDataURI_base(aSimpleURI), mPrincipal(aPrincipal)
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{}
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virtual ~nsFileDataURI() {}
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// For use only from deserialization
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nsFileDataURI() : nsFileDataURI_base() {}
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NS_DECL_ISUPPORTS
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NS_DECL_NSIURIWITHPRINCIPAL
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NS_DECL_NSISERIALIZABLE
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NS_DECL_NSICLASSINFO
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// Override Clone() and Equals()
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NS_IMETHOD Clone(nsIURI** aClone);
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NS_IMETHOD Equals(nsIURI* aOther, PRBool *aResult);
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nsCOMPtr<nsIPrincipal> mPrincipal;
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};
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NS_IMPL_ADDREF(nsFileDataURI)
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NS_IMPL_RELEASE(nsFileDataURI)
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NS_INTERFACE_MAP_BEGIN(nsFileDataURI)
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NS_INTERFACE_MAP_ENTRY(nsIURI)
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NS_INTERFACE_MAP_ENTRY(nsIURIWithPrincipal)
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NS_INTERFACE_MAP_ENTRY(nsISerializable)
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NS_INTERFACE_MAP_ENTRY(nsIClassInfo)
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NS_INTERFACE_MAP_ENTRY(nsIMutable)
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NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIURI)
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if (aIID.Equals(kFILEDATAURICID))
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foundInterface = static_cast<nsIURI*>(this);
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else
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NS_INTERFACE_MAP_END
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// nsIURIWithPrincipal methods:
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NS_IMETHODIMP
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nsFileDataURI::GetPrincipal(nsIPrincipal** aPrincipal)
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{
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NS_IF_ADDREF(*aPrincipal = mPrincipal);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsFileDataURI::GetPrincipalUri(nsIURI** aUri)
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{
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if (mPrincipal) {
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mPrincipal->GetURI(aUri);
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}
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else {
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*aUri = nsnull;
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}
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return NS_OK;
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}
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// nsISerializable methods:
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NS_IMETHODIMP
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nsFileDataURI::Read(nsIObjectInputStream* aStream)
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{
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nsresult rv = aStream->ReadObject(PR_TRUE, getter_AddRefs(mSimpleURI));
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NS_ENSURE_SUCCESS(rv, rv);
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mMutable = do_QueryInterface(mSimpleURI);
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NS_ENSURE_TRUE(mMutable, NS_ERROR_UNEXPECTED);
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return NS_ReadOptionalObject(aStream, PR_TRUE, getter_AddRefs(mPrincipal));
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}
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NS_IMETHODIMP
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nsFileDataURI::Write(nsIObjectOutputStream* aStream)
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{
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nsresult rv = aStream->WriteCompoundObject(mSimpleURI, NS_GET_IID(nsIURI),
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PR_TRUE);
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NS_ENSURE_SUCCESS(rv, rv);
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return NS_WriteOptionalCompoundObject(aStream, mPrincipal,
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NS_GET_IID(nsIPrincipal),
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PR_TRUE);
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}
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// nsIURI methods:
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NS_IMETHODIMP
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nsFileDataURI::Clone(nsIURI** aClone)
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{
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nsCOMPtr<nsIURI> simpleClone;
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nsresult rv = mSimpleURI->Clone(getter_AddRefs(simpleClone));
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NS_ENSURE_SUCCESS(rv, rv);
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nsIURI* newURI = new nsFileDataURI(mPrincipal, simpleClone);
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NS_ENSURE_TRUE(newURI, NS_ERROR_OUT_OF_MEMORY);
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NS_ADDREF(*aClone = newURI);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsFileDataURI::Equals(nsIURI* aOther, PRBool *aResult)
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{
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if (!aOther) {
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*aResult = PR_FALSE;
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return NS_OK;
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}
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nsRefPtr<nsFileDataURI> otherFileDataUri;
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aOther->QueryInterface(kFILEDATAURICID, getter_AddRefs(otherFileDataUri));
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if (!otherFileDataUri) {
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*aResult = PR_FALSE;
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return NS_OK;
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}
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nsresult rv = mPrincipal->Equals(otherFileDataUri->mPrincipal, aResult);
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NS_ENSURE_SUCCESS(rv, rv);
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if (!*aResult) {
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return NS_OK;
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}
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return mSimpleURI->Equals(otherFileDataUri->mSimpleURI, aResult);
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}
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// nsIClassInfo methods:
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NS_IMETHODIMP
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nsFileDataURI::GetInterfaces(PRUint32 *count, nsIID * **array)
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{
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*count = 0;
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*array = nsnull;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsFileDataURI::GetHelperForLanguage(PRUint32 language, nsISupports **_retval)
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{
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*_retval = nsnull;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsFileDataURI::GetContractID(char * *aContractID)
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{
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// Make sure to modify any subclasses as needed if this ever
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// changes.
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*aContractID = nsnull;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsFileDataURI::GetClassDescription(char * *aClassDescription)
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{
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*aClassDescription = nsnull;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsFileDataURI::GetClassID(nsCID * *aClassID)
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{
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// Make sure to modify any subclasses as needed if this ever
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// changes to not call the virtual GetClassIDNoAlloc.
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*aClassID = (nsCID*) nsMemory::Alloc(sizeof(nsCID));
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NS_ENSURE_TRUE(*aClassID, NS_ERROR_OUT_OF_MEMORY);
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return GetClassIDNoAlloc(*aClassID);
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}
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NS_IMETHODIMP
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nsFileDataURI::GetImplementationLanguage(PRUint32 *aImplementationLanguage)
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{
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*aImplementationLanguage = nsIProgrammingLanguage::CPLUSPLUS;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsFileDataURI::GetFlags(PRUint32 *aFlags)
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{
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*aFlags = nsIClassInfo::MAIN_THREAD_ONLY;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsFileDataURI::GetClassIDNoAlloc(nsCID *aClassIDNoAlloc)
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{
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*aClassIDNoAlloc = kFILEDATAURICID;
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return NS_OK;
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}
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// -----------------------------------------------------------------------
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// Protocol handler
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NS_IMPL_ISUPPORTS1(nsFileDataProtocolHandler, nsIProtocolHandler)
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NS_IMETHODIMP
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nsFileDataProtocolHandler::GetScheme(nsACString &result)
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{
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result.AssignLiteral(FILEDATA_SCHEME);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsFileDataProtocolHandler::GetDefaultPort(PRInt32 *result)
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{
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*result = -1;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsFileDataProtocolHandler::GetProtocolFlags(PRUint32 *result)
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{
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*result = URI_NORELATIVE | URI_NOAUTH | URI_LOADABLE_BY_SUBSUMERS |
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URI_IS_LOCAL_RESOURCE | URI_NON_PERSISTABLE;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsFileDataProtocolHandler::NewURI(const nsACString& aSpec,
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const char *aCharset,
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nsIURI *aBaseURI,
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nsIURI **aResult)
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{
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*aResult = nsnull;
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nsresult rv;
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FileDataInfo* info =
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GetFileDataInfo(aSpec);
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nsCOMPtr<nsIURI> inner = do_CreateInstance(kSimpleURICID, &rv);
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NS_ENSURE_SUCCESS(rv, rv);
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rv = inner->SetSpec(aSpec);
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NS_ENSURE_SUCCESS(rv, rv);
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nsRefPtr<nsFileDataURI> uri =
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new nsFileDataURI(info ? info->mPrincipal.get() : nsnull, inner);
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NS_TryToSetImmutable(uri);
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*aResult = uri.forget().get();
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return NS_OK;
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}
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NS_IMETHODIMP
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nsFileDataProtocolHandler::NewChannel(nsIURI* uri, nsIChannel* *result)
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{
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*result = nsnull;
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nsCString spec;
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uri->GetSpec(spec);
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FileDataInfo* info =
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GetFileDataInfo(spec);
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if (!info) {
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return NS_ERROR_DOM_BAD_URI;
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}
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#ifdef DEBUG
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{
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nsCOMPtr<nsIURIWithPrincipal> uriPrinc = do_QueryInterface(uri);
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nsCOMPtr<nsIPrincipal> principal;
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uriPrinc->GetPrincipal(getter_AddRefs(principal));
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NS_ASSERTION(info->mPrincipal == principal, "Wrong principal!");
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}
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#endif
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nsCOMPtr<nsIChannel> channel;
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nsresult rv = NS_NewChannel(getter_AddRefs(channel), info->mFileUri);
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NS_ENSURE_SUCCESS(rv, rv);
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nsCOMPtr<nsISupports> owner = do_QueryInterface(info->mPrincipal);
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channel->SetOwner(owner);
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channel->SetOriginalURI(uri);
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channel.forget(result);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsFileDataProtocolHandler::AllowPort(PRInt32 port, const char *scheme,
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PRBool *_retval)
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{
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// don't override anything.
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*_retval = PR_FALSE;
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return NS_OK;
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}
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