adding mime type resolver module.

netwerk/mime/Makefile.in

@@ -0,0 +1,33 @@
+#! gmake
+#
+# The contents of this file are subject to the Netscape Public License
+# Version 1.0 (the "NPL"); you may not use this file except in
+# compliance with the NPL.  You may obtain a copy of the NPL at
+# http://www.mozilla.org/NPL/
+#
+# Software distributed under the NPL is distributed on an "AS IS" basis,
+# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+# for the specific language governing rights and limitations under the
+# NPL.
+#
+# The Initial Developer of this code under the NPL is Netscape
+# Communications Corporation.  Portions created by Netscape are
+# Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+# Reserved.
+
+DEPTH = ../..
+
+topsrcdir	= @top_srcdir@
+srcdir		= @srcdir@
+VPATH		= @srcdir@
+
+MODULE		= mime
+
+include $(DEPTH)/config/autoconf.mk
+
+DIRS=          \
+	public \
+	src    \
+	$(NULL)
+
+include $(topsrcdir)/config/rules.mk

netwerk/mime/makefile.win

@@ -0,0 +1,27 @@
+#!gmake
+#
+# The contents of this file are subject to the Netscape Public License
+# Version 1.0 (the "NPL"); you may not use this file except in
+# compliance with the NPL.  You may obtain a copy of the NPL at
+# http://www.mozilla.org/NPL/
+#
+# Software distributed under the NPL is distributed on an "AS IS" basis,
+# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+# for the specific language governing rights and limitations under the
+# NPL.
+#
+# The Initial Developer of this code under the NPL is Netscape
+# Communications Corporation.  Portions created by Netscape are
+# Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+# Reserved.
+
+DEPTH = ..\..
+
+MODULE = mime
+
+DIRS=          \
+	public \
+	src    \
+	$(NULL)
+
+include <$(DEPTH)\config\rules.mak>

netwerk/mime/public/Makefile.in

@@ -0,0 +1,46 @@
+#!gmake
+#
+# The contents of this file are subject to the Netscape Public License
+# Version 1.0 (the "NPL"); you may not use this file except in
+# compliance with the NPL.  You may obtain a copy of the NPL at
+# http://www.mozilla.org/NPL/
+#
+# Software distributed under the NPL is distributed on an "AS IS" basis,
+# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+# for the specific language governing rights and limitations under the
+# NPL.
+#
+# The Initial Developer of this code under the NPL is Netscape
+# Communications Corporation.  Portions created by Netscape are
+# Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+# Reserved.
+
+DEPTH = ../../..
+
+topsrcdir	= @top_srcdir@
+srcdir		= @srcdir@
+VPATH		= @srcdir@
+
+MODULE = mime
+XPIDL_MODULE = mime
+
+XPIDLSRCS =                      \
+        nsIMIMEService.idl      \
+        nsIMIMEInfo.idl         \
+        $(NULL)
+
+EXPORTS =			    \
+	nsIMIMEInfo.h       \
+    nsIMIMEService.h    \
+	$(NULL)
+
+include $(DEPTH)/config/autoconf.mk
+
+include $(topsrcdir)/config/config.mk
+
+# hack until necko lands
+ifndef NECKO
+PUBLIC = $(DEPTH)/netwerk/dist/include
+endif
+
+include $(topsrcdir)/config/rules.mk

netwerk/mime/public/makefile.win

@@ -0,0 +1,43 @@
+#!gmake
+#
+# The contents of this file are subject to the Netscape Public License
+# Version 1.0 (the "NPL"); you may not use this file except in
+# compliance with the NPL.  You may obtain a copy of the NPL at
+# http://www.mozilla.org/NPL/
+#
+# Software distributed under the NPL is distributed on an "AS IS" basis,
+# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+# for the specific language governing rights and limitations under the
+# NPL.
+#
+# The Initial Developer of this code under the NPL is Netscape
+# Communications Corporation.  Portions created by Netscape are
+# Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+# Reserved.
+
+MODULE = mime
+
+DEPTH = ..\..\..
+
+// temporary, until we land:
+!ifndef NECKO
+include <$(DEPTH)/config/config.mak>
+PUBLIC = $(DEPTH)\netwerk\dist\include
+!endif
+
+XPIDL_MODULE = mime
+
+XPIDLSRCS =                        \
+        .\nsIMIMEInfo.idl          \
+        .\nsIMIMEService.idl       \
+        $(NULL)
+
+EXPORTS =                           \
+        $(NULL)
+
+include <$(DEPTH)/config/rules.mak>
+
+$(DEPTH)\netwerk\dist\include: 
+        -mkdir $(DEPTH)\netwerk\dist
+        -mkdir $(DEPTH)\netwerk\dist\include
+

netwerk/mime/public/nsIMIMEInfo.idl

@@ -0,0 +1,37 @@
+/* -*- Mode: IDL; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "NPL"); you may not use this file except in
+ * compliance with the NPL.  You may obtain a copy of the NPL at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the NPL is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+ * for the specific language governing rights and limitations under the
+ * NPL.
+ *
+ * The Initial Developer of this code under the NPL is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+ * Reserved.
+ */
+
+/* An nsIMIMEInfo gives a user access to mime information
+ *
+ */
+
+#include "nsISupports.idl"
+
+[scriptable, uuid(6A57EAE0-2FE8-11d3-A164-0050041CAF44)]
+interface nsIMIMEInfo : nsISupports {
+	// return the file extensions associated with this MIME type set.
+	attribute string FileExtensions;
+
+	// return the MIME types associated with this file extension set.
+	attribute string MIMEType;
+
+	// return the description of this MIME type set.
+	attribute wstring Description;
+
+	boolean Equals(in nsIMIMEInfo aMIMEInfo);
+};

netwerk/mime/public/nsIMIMEService.idl

@@ -0,0 +1,52 @@
+/* -*- Mode: IDL; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "NPL"); you may not use this file except in
+ * compliance with the NPL.  You may obtain a copy of the NPL at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the NPL is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+ * for the specific language governing rights and limitations under the
+ * NPL.
+ *
+ * The Initial Developer of this code under the NPL is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+ * Reserved.
+ */
+
+ /* The MIME service is responsible for mapping file extensions to MIME-types
+  * (see RFC 2045).
+  */
+
+#include "nsISupports.idl"
+#include "nsIMIMEInfo.idl"
+
+
+%{C++
+
+#define NS_MIMESERVICE_CID                             \
+{ /* 9ac9e770-18bc-11d3-9337-00104ba0fd40 */         \
+    0x9ac9e770,                                      \
+    0x18bc,                                          \
+    0x11d3,                                          \
+    {0x93, 0x37, 0x00, 0x10, 0x4b, 0xa0, 0xfd, 0x40} \
+}
+
+%}
+
+[scriptable, uuid(6C424C90-2FE7-11d3-A164-0050041CAF44)]
+interface nsIMIMEService : nsISupports {
+	// return a nsIMIMEInfo for the given file extension.
+	nsIMIMEInfo GetFromExtension(in wstring aFileExt);
+
+	// return a nsIMIMEInfo for the given MIME type.
+	nsIMIMEInfo GetFromMIMEType(in wstring aMIMEType);
+
+	// insert a nsIMIMEInfo in the the database.
+	void AddMIMEInfo(in nsIMIMEInfo aMIMEInfo);
+
+	// remove a nsIMIMEInfo from the database.
+	void RemoveMIMEInfo(in nsIMIMEInfo aMIMEInfo);	
+};

netwerk/mime/src/Makefile.in

@@ -0,0 +1,46 @@
+# The contents of this file are subject to the Netscape Public License
+# Version 1.0 (the "NPL"); you may not use this file except in
+# compliance with the NPL.  You may obtain a copy of the NPL at
+# http://www.mozilla.org/NPL/
+#
+# Software distributed under the NPL is distributed on an "AS IS" basis,
+# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+# for the specific language governing rights and limitations under the
+# NPL.
+#
+# The Initial Developer of this code under the NPL is Netscape
+# Communications Corporation.  Portions created by Netscape are
+# Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+# Reserved.
+
+DEPTH = ../../..
+
+topsrcdir	= @top_srcdir@
+srcdir		= @srcdir@
+VPATH		= @srcdir@
+
+MODULE = mime
+
+LIBRARY_NAME = mime
+
+IS_COMPONENT = 1
+
+include $(DEPTH)/config/autoconf.mk
+
+CPPSRCS =                              \
+        nsMIMEInfoImpl.cpp             \
+        nsMIMEService.cpp              \
+        $(NULL)
+
+include $(topsrcdir)/config/config.mk
+
+REQUIRES = xpcom
+
+# hack until necko lands
+ifndef NECKO
+PUBLIC = $(DEPTH)/netwerk/dist/include
+endif
+
+TARGET = $(LIBARY)
+
+include $(topsrcdir)/config/rules.mk

netwerk/mime/src/makefile.win

@@ -0,0 +1,56 @@
+# The contents of this file are subject to the Netscape Public License
+# Version 1.0 (the "NPL"); you may not use this file except in
+# compliance with the NPL.  You may obtain a copy of the NPL at
+# http://www.mozilla.org/NPL/
+#
+# Software distributed under the NPL is distributed on an "AS IS" basis,
+# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+# for the specific language governing rights and limitations under the
+# NPL.
+#
+# The Initial Developer of this code under the NPL is Netscape
+# Communications Corporation.  Portions created by Netscape are
+# Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+# Reserved.
+
+DEPTH = ..\..\..
+
+// temporary, until we land:
+!ifndef NECKO
+include <$(DEPTH)/config/config.mak>
+PUBLIC = $(DEPTH)\netwerk\dist\include
+!endif
+
+MODULE = mime
+
+IS_COMPONENT=1
+MAKE_OBJ_TYPE=DLL
+DLLNAME=mime
+DLL=.\$(OBJDIR)\$(DLLNAME).dll
+
+LLIBS= $(LLIBS) \
+        $(DIST)\lib\xpcom.lib \
+        $(NULL)
+
+LCFLAGS = -DWIN32_LEAN_AND_MEAN -D_IMPL_NS_NET
+
+CPP_OBJS =                                         \
+        nsMIMEInfoImpl.obj          \
+        nsMIMEService.obj           \
+        $(NULL)
+
+LOCAL_INCLUDES=-I.
+
+INCLUDES = $(LOCAL_INCLUDES)
+
+INCS = $(INCS)                  \
+        -I$(DEPTH)\dist\include \
+        $(NULL)
+
+include <$(DEPTH)\config\rules.mak>
+
+install:: $(DLL)
+	$(MAKE_INSTALL) $(DLL) $(DIST)\bin\components
+
+clobber::
+        rv -f $(DLL) $(DIST)\bin\components

netwerk/mime/src/nsMIMEInfoImpl.cpp

@@ -0,0 +1,101 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "NPL"); you may not use this file except in
+ * compliance with the NPL.  You may obtain a copy of the NPL at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the NPL is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+ * for the specific language governing rights and limitations under the
+ * NPL.
+ *
+ * The Initial Developer of this code under the NPL is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+ * Reserved.
+ */
+
+#include "nsMIMEInfoImpl.h"
+#include "nsCRT.h"
+
+
+// nsISupports methods
+NS_IMPL_ISUPPORTS(nsMIMEInfoImpl, nsCOMTypeInfo<nsIMIMEInfo>::GetIID());
+
+// nsMIMEInfoImpl methods
+nsMIMEInfoImpl::nsMIMEInfoImpl(const char *aMIMEType, const char *aFileExtensions, const char *aDescription) {
+    mMIMEType = NS_NewAtom(aMIMEType);
+    mFileExtensions.SetString(aFileExtensions);
+    mDescription.SetString(aDescription);
+}
+
+nsMIMEInfoImpl::~nsMIMEInfoImpl() {
+    delete mMIMEType;
+}
+
+PRBool
+nsMIMEInfoImpl::InExtensions(nsIAtom* anIAtom) {
+    nsString2 extension;
+    anIAtom->ToString(extension);
+    
+    if (mFileExtensions.Find(extension) == -1)
+        return PR_FALSE;
+    return PR_TRUE;
+}
+
+// nsIMIMEInfo methods
+NS_IMETHODIMP
+nsMIMEInfoImpl::GetFileExtensions(char * *aFileExtensions) {
+    if (!aFileExtensions) return NS_ERROR_NULL_POINTER;
+
+    *aFileExtensions = mFileExtensions.ToNewCString();
+    if (!*aFileExtensions)
+        return NS_ERROR_OUT_OF_MEMORY;
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMIMEInfoImpl::SetFileExtensions(char * aFileExtensions) {
+    mFileExtensions.SetString(aFileExtensions);
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMIMEInfoImpl::GetMIMEType(char * *aMIMEType) {
+    if (!aMIMEType) return NS_ERROR_NULL_POINTER;
+
+    nsString2 strMIMEType;
+    mMIMEType->ToString(strMIMEType);
+    *aMIMEType = strMIMEType.ToNewCString();
+    if (!*aMIMEType) return NS_ERROR_OUT_OF_MEMORY;
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMIMEInfoImpl::SetMIMEType(char * aMIMEType) {
+    delete mMIMEType;
+    mMIMEType = NS_NewAtom(aMIMEType);
+    if (!mMIMEType) return NS_ERROR_OUT_OF_MEMORY;
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMIMEInfoImpl::GetDescription(PRUnichar * *aDescription) {
+    if (!aDescription) return NS_ERROR_NULL_POINTER;
+
+    *aDescription = mDescription.ToNewUnicode();
+    if (!*aDescription) return NS_ERROR_OUT_OF_MEMORY;
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMIMEInfoImpl::SetDescription(PRUnichar * aDescription) {
+    mDescription.SetString(aDescription);
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMIMEInfoImpl::Equals(nsIMIMEInfo *aMIMEInfo, PRBool *_retval) {
+    return NS_ERROR_NOT_IMPLEMENTED;
+}

netwerk/mime/src/nsMIMEInfoImpl.h

@@ -0,0 +1,54 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "NPL"); you may not use this file except in
+ * compliance with the NPL.  You may obtain a copy of the NPL at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the NPL is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+ * for the specific language governing rights and limitations under the
+ * NPL.
+ *
+ * The Initial Developer of this code under the NPL is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+ * Reserved.
+ */
+#ifndef __nsmimeinfoimpl_h___
+#define __nsmimeinfoimpl_h___
+
+#include "nsIMIMEInfo.h"
+#include "nsIAtom.h"
+#include "nsString2.h"
+
+class nsMIMEInfoImpl : public nsIMIMEInfo {
+
+    // nsISupports methods
+    NS_DECL_ISUPPORTS
+
+    // nsMIMEInfoImpl methods
+    nsMIMEInfoImpl(const char *aMIMEType, const char *aFileExtensions, const char *aDescription);
+    ~nsMIMEInfoImpl();
+
+    PRBool InExtensions(nsIAtom* anIAtom);
+
+    // nsIMIMEInfo methods
+    NS_IMETHOD GetFileExtensions(char * *aFileExtensions);
+    NS_IMETHOD SetFileExtensions(char * aFileExtensions);
+
+    NS_IMETHOD GetMIMEType(char * *aMIMEType);
+    NS_IMETHOD SetMIMEType(char * aMIMEType);
+
+    NS_IMETHOD GetDescription(PRUnichar * *aDescription);
+    NS_IMETHOD SetDescription(PRUnichar * aDescription);
+
+    NS_IMETHOD Equals(nsIMIMEInfo *aMIMEInfo, PRBool *_retval);
+
+    // member variables
+    nsIAtom*            mMIMEType;
+    nsString2           mFileExtensions;
+    nsString2           mDescription;
+};
+
+#endif //__nsmimeinfoimpl_h___

netwerk/mime/src/nsMIMEService.cpp

@@ -0,0 +1,115 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "NPL"); you may not use this file except in
+ * compliance with the NPL.  You may obtain a copy of the NPL at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the NPL is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+ * for the specific language governing rights and limitations under the
+ * NPL.
+ *
+ * The Initial Developer of this code under the NPL is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+ * Reserved.
+ */
+
+#include "nsMIMEService.h"
+#include "nsVoidArray.h"
+#include "nsEnumeratorUtils.h" // for nsArrayEnumerator
+#include "nsString2.h"
+#include "nsMIMEInfoImpl.h"
+#include "nsIMIMEInfo.h"
+
+
+// nsMIMEService methods
+nsMIMEService::nsMIMEService() {
+    mInfoArray = new nsVoidArray();
+    InitFromHack(); // XXX bogus
+}
+
+nsMIMEService::~nsMIMEService() {
+    PRInt32 count = mInfoArray->Count();
+    for (int i = 0; i < count; i++) {
+        nsMIMEInfoImpl *entry = (nsMIMEInfoImpl*)mInfoArray->ElementAt(i);
+        mInfoArray->RemoveElementAt(i);
+        //    delete entry;
+    }
+}
+
+ /* This bad boy needs to retrieve a url, and parse the data coming back, and
+  * add entries into the mInfoArray.
+  */
+nsresult
+nsMIMEService::InitFromURI(nsIURI *aUri) {
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+nsresult
+nsMIMEService::InitFromHack() {
+
+    nsMIMEInfoImpl* anInfo = nsnull;
+    anInfo = new nsMIMEInfoImpl("text/html", "htm,html", "Hyper Text Markup Language");
+    if (!anInfo) return NS_ERROR_OUT_OF_MEMORY;
+    mInfoArray->AppendElement(anInfo);
+
+    anInfo = new nsMIMEInfoImpl("text/rdf", "rdf", "Resource Description Framework");
+    if (!anInfo) return NS_ERROR_OUT_OF_MEMORY;
+    mInfoArray->AppendElement(anInfo);
+
+    anInfo = new nsMIMEInfoImpl("text/xul", "xul", "XML-Based User Interface Language");
+    if (!anInfo) return NS_ERROR_OUT_OF_MEMORY;
+    mInfoArray->AppendElement(anInfo);
+
+    anInfo = new nsMIMEInfoImpl("text/xml", "xml", "Extensible Markup Language");
+    if (!anInfo) return NS_ERROR_OUT_OF_MEMORY;
+    mInfoArray->AppendElement(anInfo);
+
+    return NS_OK;
+}
+
+
+// nsIMIMEService methods
+NS_IMETHODIMP
+nsMIMEService::GetFromExtension(const PRUnichar *aFileExt, nsIMIMEInfo **_retval) {
+    nsIAtom* extension = NS_NewAtom(aFileExt);
+    if (!extension) return NS_ERROR_OUT_OF_MEMORY;
+
+    PRInt32 count = mInfoArray->Count();
+    for (int i = 0; i < count; i++) {
+        nsMIMEInfoImpl *entry = (nsMIMEInfoImpl*)mInfoArray->ElementAt(i);
+        if (entry->InExtensions(extension)) {
+            *_retval = NS_STATIC_CAST(nsIMIMEInfo*, entry);
+            return NS_OK;
+        }
+    }
+    return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP
+nsMIMEService::GetFromMIMEType(const PRUnichar *aMIMEType, nsIMIMEInfo **_retval) {
+    nsIAtom* MIMEType = NS_NewAtom(aMIMEType);
+    if (!MIMEType) return NS_ERROR_OUT_OF_MEMORY;
+
+    PRInt32 count = mInfoArray->Count();
+    for (int i = 0; i < count; i++) {
+        nsMIMEInfoImpl *entry = (nsMIMEInfoImpl*)mInfoArray->ElementAt(i);
+        if (entry->mMIMEType == MIMEType) {
+            *_retval = NS_STATIC_CAST(nsIMIMEInfo*, entry);
+            return NS_OK;
+        }
+    }
+    return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP
+nsMIMEService::AddMIMEInfo(nsIMIMEInfo *aMIMEInfo) {
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+nsMIMEService::RemoveMIMEInfo(nsIMIMEInfo *aMIMEInfo) {
+    return NS_ERROR_NOT_IMPLEMENTED;
+}

netwerk/mime/src/nsMIMEService.h

@@ -0,0 +1,50 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "NPL"); you may not use this file except in
+ * compliance with the NPL.  You may obtain a copy of the NPL at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the NPL is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+ * for the specific language governing rights and limitations under the
+ * NPL.
+ *
+ * The Initial Developer of this code under the NPL is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+ * Reserved.
+ */
+
+/*
+ * There is a 1-to-many relationship between MIME-types and file extensions
+ * I.e. there can be many file extensions that have the same mime type.
+ */
+
+#ifndef ___nsIMIMEService__h___
+#define ___nsIMIMEService__h___
+
+#include "nsIMIMEService.h"
+#include "nsIURI.h"
+class nsVoidArray;
+
+class nsMIMEService : public nsIMIMEService {
+
+    // nsMIMEService methods
+    nsMIMEService();
+    ~nsMIMEService();
+
+    // nsIMIMEService methods
+    NS_IMETHOD GetFromExtension(const PRUnichar *aFileExt, nsIMIMEInfo **_retval);
+    NS_IMETHOD GetFromMIMEType(const PRUnichar *aMIMEType, nsIMIMEInfo **_retval);
+    NS_IMETHOD AddMIMEInfo(nsIMIMEInfo *aMIMEInfo);
+    NS_IMETHOD RemoveMIMEInfo(nsIMIMEInfo *aMIMEInfo);
+
+private:
+    nsresult InitFromURI(nsIURI *aUri);
+    nsresult InitFromHack();
+
+    nsVoidArray*            mInfoArray;
+};
+
+#endif // ___nsIMIMEService__h___

uriloader/exthandler/nsMIMEInfoImpl.cpp

@@ -0,0 +1,101 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "NPL"); you may not use this file except in
+ * compliance with the NPL.  You may obtain a copy of the NPL at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the NPL is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+ * for the specific language governing rights and limitations under the
+ * NPL.
+ *
+ * The Initial Developer of this code under the NPL is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+ * Reserved.
+ */
+
+#include "nsMIMEInfoImpl.h"
+#include "nsCRT.h"
+
+
+// nsISupports methods
+NS_IMPL_ISUPPORTS(nsMIMEInfoImpl, nsCOMTypeInfo<nsIMIMEInfo>::GetIID());
+
+// nsMIMEInfoImpl methods
+nsMIMEInfoImpl::nsMIMEInfoImpl(const char *aMIMEType, const char *aFileExtensions, const char *aDescription) {
+    mMIMEType = NS_NewAtom(aMIMEType);
+    mFileExtensions.SetString(aFileExtensions);
+    mDescription.SetString(aDescription);
+}
+
+nsMIMEInfoImpl::~nsMIMEInfoImpl() {
+    delete mMIMEType;
+}
+
+PRBool
+nsMIMEInfoImpl::InExtensions(nsIAtom* anIAtom) {
+    nsString2 extension;
+    anIAtom->ToString(extension);
+    
+    if (mFileExtensions.Find(extension) == -1)
+        return PR_FALSE;
+    return PR_TRUE;
+}
+
+// nsIMIMEInfo methods
+NS_IMETHODIMP
+nsMIMEInfoImpl::GetFileExtensions(char * *aFileExtensions) {
+    if (!aFileExtensions) return NS_ERROR_NULL_POINTER;
+
+    *aFileExtensions = mFileExtensions.ToNewCString();
+    if (!*aFileExtensions)
+        return NS_ERROR_OUT_OF_MEMORY;
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMIMEInfoImpl::SetFileExtensions(char * aFileExtensions) {
+    mFileExtensions.SetString(aFileExtensions);
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMIMEInfoImpl::GetMIMEType(char * *aMIMEType) {
+    if (!aMIMEType) return NS_ERROR_NULL_POINTER;
+
+    nsString2 strMIMEType;
+    mMIMEType->ToString(strMIMEType);
+    *aMIMEType = strMIMEType.ToNewCString();
+    if (!*aMIMEType) return NS_ERROR_OUT_OF_MEMORY;
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMIMEInfoImpl::SetMIMEType(char * aMIMEType) {
+    delete mMIMEType;
+    mMIMEType = NS_NewAtom(aMIMEType);
+    if (!mMIMEType) return NS_ERROR_OUT_OF_MEMORY;
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMIMEInfoImpl::GetDescription(PRUnichar * *aDescription) {
+    if (!aDescription) return NS_ERROR_NULL_POINTER;
+
+    *aDescription = mDescription.ToNewUnicode();
+    if (!*aDescription) return NS_ERROR_OUT_OF_MEMORY;
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMIMEInfoImpl::SetDescription(PRUnichar * aDescription) {
+    mDescription.SetString(aDescription);
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMIMEInfoImpl::Equals(nsIMIMEInfo *aMIMEInfo, PRBool *_retval) {
+    return NS_ERROR_NOT_IMPLEMENTED;
+}

uriloader/exthandler/nsMIMEInfoImpl.h

@@ -0,0 +1,54 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "NPL"); you may not use this file except in
+ * compliance with the NPL.  You may obtain a copy of the NPL at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the NPL is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+ * for the specific language governing rights and limitations under the
+ * NPL.
+ *
+ * The Initial Developer of this code under the NPL is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+ * Reserved.
+ */
+#ifndef __nsmimeinfoimpl_h___
+#define __nsmimeinfoimpl_h___
+
+#include "nsIMIMEInfo.h"
+#include "nsIAtom.h"
+#include "nsString2.h"
+
+class nsMIMEInfoImpl : public nsIMIMEInfo {
+
+    // nsISupports methods
+    NS_DECL_ISUPPORTS
+
+    // nsMIMEInfoImpl methods
+    nsMIMEInfoImpl(const char *aMIMEType, const char *aFileExtensions, const char *aDescription);
+    ~nsMIMEInfoImpl();
+
+    PRBool InExtensions(nsIAtom* anIAtom);
+
+    // nsIMIMEInfo methods
+    NS_IMETHOD GetFileExtensions(char * *aFileExtensions);
+    NS_IMETHOD SetFileExtensions(char * aFileExtensions);
+
+    NS_IMETHOD GetMIMEType(char * *aMIMEType);
+    NS_IMETHOD SetMIMEType(char * aMIMEType);
+
+    NS_IMETHOD GetDescription(PRUnichar * *aDescription);
+    NS_IMETHOD SetDescription(PRUnichar * aDescription);
+
+    NS_IMETHOD Equals(nsIMIMEInfo *aMIMEInfo, PRBool *_retval);
+
+    // member variables
+    nsIAtom*            mMIMEType;
+    nsString2           mFileExtensions;
+    nsString2           mDescription;
+};
+
+#endif //__nsmimeinfoimpl_h___