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nsFileSystemDataSource.cpp
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nsFileSystemDataSource.cpp
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Benjamin Smedberg <benjamin@smedbergs.us>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/*
Implementation for a file system RDF data store.
*/
#include "nsFileSystemDataSource.h"
#include <ctype.h> // for toupper()
#include <stdio.h>
#include "nsIEnumerator.h"
#include "nsIRDFDataSource.h"
#include "nsIRDFObserver.h"
#include "nsIServiceManager.h"
#include "nsXPIDLString.h"
#include "nsRDFCID.h"
#include "rdfutil.h"
#include "plhash.h"
#include "plstr.h"
#include "prlong.h"
#include "prlog.h"
#include "prmem.h"
#include "prprf.h"
#include "prio.h"
#include "rdf.h"
#include "nsEnumeratorUtils.h"
#include "nsIURL.h"
#include "nsIFileURL.h"
#include "nsNetUtil.h"
#include "nsIChannel.h"
#include "nsIFile.h"
#include "nsEscape.h"
#include "nsCRTGlue.h"
#include "nsAutoPtr.h"
#ifdef XP_WIN
#include "windef.h"
#include "winbase.h"
#include "nsILineInputStream.h"
#include "nsDirectoryServiceDefs.h"
#endif
#ifdef XP_OS2
#define INCL_DOSFILEMGR
#include <os2.h>
#endif
#define NS_MOZICON_SCHEME "moz-icon:"
static const char kFileProtocol[] = "file://";
bool
FileSystemDataSource::isFileURI(nsIRDFResource *r)
{
bool isFileURIFlag = false;
const char *uri = nsnull;
r->GetValueConst(&uri);
if ((uri) && (!strncmp(uri, kFileProtocol, sizeof(kFileProtocol) - 1)))
{
// XXX HACK HACK HACK
if (!strchr(uri, '#'))
{
isFileURIFlag = true;
}
}
return(isFileURIFlag);
}
bool
FileSystemDataSource::isDirURI(nsIRDFResource* source)
{
nsresult rv;
const char *uri = nsnull;
rv = source->GetValueConst(&uri);
if (NS_FAILED(rv)) return(false);
nsCOMPtr<nsIFile> aDir;
rv = NS_GetFileFromURLSpec(nsDependentCString(uri), getter_AddRefs(aDir));
if (NS_FAILED(rv)) return(false);
bool isDirFlag = false;
rv = aDir->IsDirectory(&isDirFlag);
if (NS_FAILED(rv)) return(false);
return(isDirFlag);
}
nsresult
FileSystemDataSource::Init()
{
nsresult rv;
mRDFService = do_GetService("@mozilla.org/rdf/rdf-service;1");
NS_ENSURE_TRUE(mRDFService, NS_ERROR_FAILURE);
rv = mRDFService->GetResource(NS_LITERAL_CSTRING("NC:FilesRoot"),
getter_AddRefs(mNC_FileSystemRoot));
rv |= mRDFService->GetResource(NS_LITERAL_CSTRING(NC_NAMESPACE_URI "child"),
getter_AddRefs(mNC_Child));
rv |= mRDFService->GetResource(NS_LITERAL_CSTRING(NC_NAMESPACE_URI "Name"),
getter_AddRefs(mNC_Name));
rv |= mRDFService->GetResource(NS_LITERAL_CSTRING(NC_NAMESPACE_URI "URL"),
getter_AddRefs(mNC_URL));
rv |= mRDFService->GetResource(NS_LITERAL_CSTRING(NC_NAMESPACE_URI "Icon"),
getter_AddRefs(mNC_Icon));
rv |= mRDFService->GetResource(NS_LITERAL_CSTRING(NC_NAMESPACE_URI "Content-Length"),
getter_AddRefs(mNC_Length));
rv |= mRDFService->GetResource(NS_LITERAL_CSTRING(NC_NAMESPACE_URI "IsDirectory"),
getter_AddRefs(mNC_IsDirectory));
rv |= mRDFService->GetResource(NS_LITERAL_CSTRING(WEB_NAMESPACE_URI "LastModifiedDate"),
getter_AddRefs(mWEB_LastMod));
rv |= mRDFService->GetResource(NS_LITERAL_CSTRING(NC_NAMESPACE_URI "FileSystemObject"),
getter_AddRefs(mNC_FileSystemObject));
rv |= mRDFService->GetResource(NS_LITERAL_CSTRING(NC_NAMESPACE_URI "pulse"),
getter_AddRefs(mNC_pulse));
rv |= mRDFService->GetResource(NS_LITERAL_CSTRING(RDF_NAMESPACE_URI "instanceOf"),
getter_AddRefs(mRDF_InstanceOf));
rv |= mRDFService->GetResource(NS_LITERAL_CSTRING(RDF_NAMESPACE_URI "type"),
getter_AddRefs(mRDF_type));
static const PRUnichar kTrue[] = {'t','r','u','e','\0'};
static const PRUnichar kFalse[] = {'f','a','l','s','e','\0'};
rv |= mRDFService->GetLiteral(kTrue, getter_AddRefs(mLiteralTrue));
rv |= mRDFService->GetLiteral(kFalse, getter_AddRefs(mLiteralFalse));
NS_ENSURE_SUCCESS(rv, NS_ERROR_FAILURE);
#ifdef USE_NC_EXTENSION
rv = mRDFService->GetResource(NS_LITERAL_CSTRING(NC_NAMESPACE_URI "extension"),
getter_AddRefs(mNC_extension));
NS_ENSURE_SUCCESS(rv, rv);
#endif
#ifdef XP_WIN
rv = mRDFService->GetResource(NS_LITERAL_CSTRING(NC_NAMESPACE_URI "IEFavorite"),
getter_AddRefs(mNC_IEFavoriteObject));
rv |= mRDFService->GetResource(NS_LITERAL_CSTRING(NC_NAMESPACE_URI "IEFavoriteFolder"),
getter_AddRefs(mNC_IEFavoriteFolder));
NS_ENSURE_SUCCESS(rv, NS_ERROR_FAILURE);
nsCOMPtr<nsIFile> file;
NS_GetSpecialDirectory(NS_WIN_FAVORITES_DIR, getter_AddRefs(file));
if (file)
{
nsCOMPtr<nsIURI> furi;
NS_NewFileURI(getter_AddRefs(furi), file);
NS_ENSURE_TRUE(furi, NS_ERROR_FAILURE);
file->GetNativePath(ieFavoritesDir);
}
#endif
return NS_OK;
}
//static
nsresult
FileSystemDataSource::Create(nsISupports* aOuter, const nsIID& aIID, void **aResult)
{
NS_ENSURE_NO_AGGREGATION(aOuter);
nsRefPtr<FileSystemDataSource> self = new FileSystemDataSource();
if (!self)
return NS_ERROR_OUT_OF_MEMORY;
nsresult rv = self->Init();
NS_ENSURE_SUCCESS(rv, rv);
return self->QueryInterface(aIID, aResult);
}
NS_IMPL_CYCLE_COLLECTION_0(FileSystemDataSource)
NS_IMPL_CYCLE_COLLECTING_ADDREF(FileSystemDataSource)
NS_IMPL_CYCLE_COLLECTING_RELEASE(FileSystemDataSource)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(FileSystemDataSource)
NS_INTERFACE_MAP_ENTRY(nsIRDFDataSource)
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END
NS_IMETHODIMP
FileSystemDataSource::GetURI(char **uri)
{
NS_PRECONDITION(uri != nsnull, "null ptr");
if (! uri)
return NS_ERROR_NULL_POINTER;
if ((*uri = NS_strdup("rdf:files")) == nsnull)
return NS_ERROR_OUT_OF_MEMORY;
return NS_OK;
}
NS_IMETHODIMP
FileSystemDataSource::GetSource(nsIRDFResource* property,
nsIRDFNode* target,
bool tv,
nsIRDFResource** source /* out */)
{
NS_PRECONDITION(property != nsnull, "null ptr");
if (! property)
return NS_ERROR_NULL_POINTER;
NS_PRECONDITION(target != nsnull, "null ptr");
if (! target)
return NS_ERROR_NULL_POINTER;
NS_PRECONDITION(source != nsnull, "null ptr");
if (! source)
return NS_ERROR_NULL_POINTER;
*source = nsnull;
return NS_RDF_NO_VALUE;
}
NS_IMETHODIMP
FileSystemDataSource::GetSources(nsIRDFResource *property,
nsIRDFNode *target,
bool tv,
nsISimpleEnumerator **sources /* out */)
{
// NS_NOTYETIMPLEMENTED("write me");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
FileSystemDataSource::GetTarget(nsIRDFResource *source,
nsIRDFResource *property,
bool tv,
nsIRDFNode **target /* out */)
{
NS_PRECONDITION(source != nsnull, "null ptr");
if (! source)
return NS_ERROR_NULL_POINTER;
NS_PRECONDITION(property != nsnull, "null ptr");
if (! property)
return NS_ERROR_NULL_POINTER;
NS_PRECONDITION(target != nsnull, "null ptr");
if (! target)
return NS_ERROR_NULL_POINTER;
*target = nsnull;
nsresult rv = NS_RDF_NO_VALUE;
// we only have positive assertions in the file system data source.
if (! tv)
return NS_RDF_NO_VALUE;
if (source == mNC_FileSystemRoot)
{
if (property == mNC_pulse)
{
nsIRDFLiteral *pulseLiteral;
mRDFService->GetLiteral(NS_LITERAL_STRING("12").get(), &pulseLiteral);
*target = pulseLiteral;
return NS_OK;
}
}
else if (isFileURI(source))
{
if (property == mNC_Name)
{
nsCOMPtr<nsIRDFLiteral> name;
rv = GetName(source, getter_AddRefs(name));
if (NS_FAILED(rv)) return(rv);
if (!name) rv = NS_RDF_NO_VALUE;
if (rv == NS_RDF_NO_VALUE) return(rv);
return name->QueryInterface(NS_GET_IID(nsIRDFNode), (void**) target);
}
else if (property == mNC_URL)
{
nsCOMPtr<nsIRDFLiteral> url;
rv = GetURL(source, nsnull, getter_AddRefs(url));
if (NS_FAILED(rv)) return(rv);
if (!url) rv = NS_RDF_NO_VALUE;
if (rv == NS_RDF_NO_VALUE) return(rv);
return url->QueryInterface(NS_GET_IID(nsIRDFNode), (void**) target);
}
else if (property == mNC_Icon)
{
nsCOMPtr<nsIRDFLiteral> url;
bool isFavorite = false;
rv = GetURL(source, &isFavorite, getter_AddRefs(url));
if (NS_FAILED(rv)) return(rv);
if (isFavorite || !url) rv = NS_RDF_NO_VALUE;
if (rv == NS_RDF_NO_VALUE) return(rv);
const PRUnichar *uni = nsnull;
url->GetValueConst(&uni);
if (!uni) return(NS_RDF_NO_VALUE);
nsAutoString urlStr;
urlStr.Assign(NS_LITERAL_STRING(NS_MOZICON_SCHEME).get());
urlStr.Append(uni);
rv = mRDFService->GetLiteral(urlStr.get(), getter_AddRefs(url));
if (NS_FAILED(rv) || !url) return(NS_RDF_NO_VALUE);
return url->QueryInterface(NS_GET_IID(nsIRDFNode), (void**) target);
}
else if (property == mNC_Length)
{
nsCOMPtr<nsIRDFInt> fileSize;
rv = GetFileSize(source, getter_AddRefs(fileSize));
if (NS_FAILED(rv)) return(rv);
if (!fileSize) rv = NS_RDF_NO_VALUE;
if (rv == NS_RDF_NO_VALUE) return(rv);
return fileSize->QueryInterface(NS_GET_IID(nsIRDFNode), (void**) target);
}
else if (property == mNC_IsDirectory)
{
*target = (isDirURI(source)) ? mLiteralTrue : mLiteralFalse;
NS_ADDREF(*target);
return NS_OK;
}
else if (property == mWEB_LastMod)
{
nsCOMPtr<nsIRDFDate> lastMod;
rv = GetLastMod(source, getter_AddRefs(lastMod));
if (NS_FAILED(rv)) return(rv);
if (!lastMod) rv = NS_RDF_NO_VALUE;
if (rv == NS_RDF_NO_VALUE) return(rv);
return lastMod->QueryInterface(NS_GET_IID(nsIRDFNode), (void**) target);
}
else if (property == mRDF_type)
{
nsCString type;
rv = mNC_FileSystemObject->GetValueUTF8(type);
if (NS_FAILED(rv)) return(rv);
#ifdef XP_WIN
// under Windows, if its an IE favorite, return that type
if (!ieFavoritesDir.IsEmpty())
{
nsCString uri;
rv = source->GetValueUTF8(uri);
if (NS_FAILED(rv)) return(rv);
NS_ConvertUTF8toUTF16 theURI(uri);
if (theURI.Find(ieFavoritesDir) == 0)
{
if (theURI[theURI.Length() - 1] == '/')
{
rv = mNC_IEFavoriteFolder->GetValueUTF8(type);
}
else
{
rv = mNC_IEFavoriteObject->GetValueUTF8(type);
}
if (NS_FAILED(rv)) return(rv);
}
}
#endif
NS_ConvertUTF8toUTF16 url(type);
nsCOMPtr<nsIRDFLiteral> literal;
mRDFService->GetLiteral(url.get(), getter_AddRefs(literal));
rv = literal->QueryInterface(NS_GET_IID(nsIRDFNode), (void**) target);
return(rv);
}
else if (property == mNC_pulse)
{
nsCOMPtr<nsIRDFLiteral> pulseLiteral;
mRDFService->GetLiteral(NS_LITERAL_STRING("12").get(), getter_AddRefs(pulseLiteral));
rv = pulseLiteral->QueryInterface(NS_GET_IID(nsIRDFNode), (void**) target);
return(rv);
}
else if (property == mNC_Child)
{
// Oh this is evil. Somebody kill me now.
nsCOMPtr<nsISimpleEnumerator> children;
rv = GetFolderList(source, false, true, getter_AddRefs(children));
if (NS_FAILED(rv) || (rv == NS_RDF_NO_VALUE)) return(rv);
bool hasMore;
rv = children->HasMoreElements(&hasMore);
if (NS_FAILED(rv)) return(rv);
if (hasMore)
{
nsCOMPtr<nsISupports> isupports;
rv = children->GetNext(getter_AddRefs(isupports));
if (NS_FAILED(rv)) return(rv);
return isupports->QueryInterface(NS_GET_IID(nsIRDFNode), (void**) target);
}
}
#ifdef USE_NC_EXTENSION
else if (property == mNC_extension)
{
nsCOMPtr<nsIRDFLiteral> extension;
rv = GetExtension(source, getter_AddRefs(extension));
if (!extension) rv = NS_RDF_NO_VALUE;
if (rv == NS_RDF_NO_VALUE) return(rv);
return extension->QueryInterface(NS_GET_IID(nsIRDFNode), (void**) target);
}
#endif
}
return(NS_RDF_NO_VALUE);
}
NS_IMETHODIMP
FileSystemDataSource::GetTargets(nsIRDFResource *source,
nsIRDFResource *property,
bool tv,
nsISimpleEnumerator **targets /* out */)
{
NS_PRECONDITION(source != nsnull, "null ptr");
if (! source)
return NS_ERROR_NULL_POINTER;
NS_PRECONDITION(property != nsnull, "null ptr");
if (! property)
return NS_ERROR_NULL_POINTER;
NS_PRECONDITION(targets != nsnull, "null ptr");
if (! targets)
return NS_ERROR_NULL_POINTER;
*targets = nsnull;
// we only have positive assertions in the file system data source.
if (! tv)
return NS_RDF_NO_VALUE;
nsresult rv;
if (source == mNC_FileSystemRoot)
{
if (property == mNC_Child)
{
return GetVolumeList(targets);
}
else if (property == mNC_pulse)
{
nsCOMPtr<nsIRDFLiteral> pulseLiteral;
mRDFService->GetLiteral(NS_LITERAL_STRING("12").get(),
getter_AddRefs(pulseLiteral));
return NS_NewSingletonEnumerator(targets, pulseLiteral);
}
}
else if (isFileURI(source))
{
if (property == mNC_Child)
{
return GetFolderList(source, false, false, targets);
}
else if (property == mNC_Name)
{
nsCOMPtr<nsIRDFLiteral> name;
rv = GetName(source, getter_AddRefs(name));
if (NS_FAILED(rv)) return rv;
return NS_NewSingletonEnumerator(targets, name);
}
else if (property == mNC_URL)
{
nsCOMPtr<nsIRDFLiteral> url;
rv = GetURL(source, nsnull, getter_AddRefs(url));
if (NS_FAILED(rv)) return rv;
return NS_NewSingletonEnumerator(targets, url);
}
else if (property == mRDF_type)
{
nsCString uri;
rv = mNC_FileSystemObject->GetValueUTF8(uri);
if (NS_FAILED(rv)) return rv;
NS_ConvertUTF8toUTF16 url(uri);
nsCOMPtr<nsIRDFLiteral> literal;
rv = mRDFService->GetLiteral(url.get(), getter_AddRefs(literal));
if (NS_FAILED(rv)) return rv;
return NS_NewSingletonEnumerator(targets, literal);
}
else if (property == mNC_pulse)
{
nsCOMPtr<nsIRDFLiteral> pulseLiteral;
rv = mRDFService->GetLiteral(NS_LITERAL_STRING("12").get(),
getter_AddRefs(pulseLiteral));
if (NS_FAILED(rv)) return rv;
return NS_NewSingletonEnumerator(targets, pulseLiteral);
}
}
return NS_NewEmptyEnumerator(targets);
}
NS_IMETHODIMP
FileSystemDataSource::Assert(nsIRDFResource *source,
nsIRDFResource *property,
nsIRDFNode *target,
bool tv)
{
return NS_RDF_ASSERTION_REJECTED;
}
NS_IMETHODIMP
FileSystemDataSource::Unassert(nsIRDFResource *source,
nsIRDFResource *property,
nsIRDFNode *target)
{
return NS_RDF_ASSERTION_REJECTED;
}
NS_IMETHODIMP
FileSystemDataSource::Change(nsIRDFResource* aSource,
nsIRDFResource* aProperty,
nsIRDFNode* aOldTarget,
nsIRDFNode* aNewTarget)
{
return NS_RDF_ASSERTION_REJECTED;
}
NS_IMETHODIMP
FileSystemDataSource::Move(nsIRDFResource* aOldSource,
nsIRDFResource* aNewSource,
nsIRDFResource* aProperty,
nsIRDFNode* aTarget)
{
return NS_RDF_ASSERTION_REJECTED;
}
NS_IMETHODIMP
FileSystemDataSource::HasAssertion(nsIRDFResource *source,
nsIRDFResource *property,
nsIRDFNode *target,
bool tv,
bool *hasAssertion /* out */)
{
NS_PRECONDITION(source != nsnull, "null ptr");
if (! source)
return NS_ERROR_NULL_POINTER;
NS_PRECONDITION(property != nsnull, "null ptr");
if (! property)
return NS_ERROR_NULL_POINTER;
NS_PRECONDITION(target != nsnull, "null ptr");
if (! target)
return NS_ERROR_NULL_POINTER;
NS_PRECONDITION(hasAssertion != nsnull, "null ptr");
if (! hasAssertion)
return NS_ERROR_NULL_POINTER;
// we only have positive assertions in the file system data source.
*hasAssertion = false;
if (! tv) {
return NS_OK;
}
if ((source == mNC_FileSystemRoot) || isFileURI(source))
{
if (property == mRDF_type)
{
nsCOMPtr<nsIRDFResource> resource( do_QueryInterface(target) );
if (resource.get() == mRDF_type)
{
*hasAssertion = true;
}
}
#ifdef USE_NC_EXTENSION
else if (property == mNC_extension)
{
// Cheat just a little here by making dirs always match
if (isDirURI(source))
{
*hasAssertion = true;
}
else
{
nsCOMPtr<nsIRDFLiteral> extension;
GetExtension(source, getter_AddRefs(extension));
if (extension.get() == target)
{
*hasAssertion = true;
}
}
}
#endif
else if (property == mNC_IsDirectory)
{
bool isDir = isDirURI(source);
bool isEqual = false;
target->EqualsNode(mLiteralTrue, &isEqual);
if (isEqual)
{
*hasAssertion = isDir;
}
else
{
target->EqualsNode(mLiteralFalse, &isEqual);
if (isEqual)
*hasAssertion = !isDir;
}
}
}
return NS_OK;
}
NS_IMETHODIMP
FileSystemDataSource::HasArcIn(nsIRDFNode *aNode, nsIRDFResource *aArc, bool *result)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
FileSystemDataSource::HasArcOut(nsIRDFResource *aSource, nsIRDFResource *aArc, bool *result)
{
*result = false;
if (aSource == mNC_FileSystemRoot)
{
*result = (aArc == mNC_Child || aArc == mNC_pulse);
}
else if (isFileURI(aSource))
{
if (aArc == mNC_pulse)
{
*result = true;
}
else if (isDirURI(aSource))
{
#ifdef XP_WIN
*result = isValidFolder(aSource);
#else
*result = true;
#endif
}
else if (aArc == mNC_pulse || aArc == mNC_Name || aArc == mNC_Icon ||
aArc == mNC_URL || aArc == mNC_Length || aArc == mWEB_LastMod ||
aArc == mNC_FileSystemObject || aArc == mRDF_InstanceOf ||
aArc == mRDF_type)
{
*result = true;
}
}
return NS_OK;
}
NS_IMETHODIMP
FileSystemDataSource::ArcLabelsIn(nsIRDFNode *node,
nsISimpleEnumerator ** labels /* out */)
{
// NS_NOTYETIMPLEMENTED("write me");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
FileSystemDataSource::ArcLabelsOut(nsIRDFResource *source,
nsISimpleEnumerator **labels /* out */)
{
NS_PRECONDITION(source != nsnull, "null ptr");
if (! source)
return NS_ERROR_NULL_POINTER;
NS_PRECONDITION(labels != nsnull, "null ptr");
if (! labels)
return NS_ERROR_NULL_POINTER;
nsresult rv;
if (source == mNC_FileSystemRoot)
{
nsCOMPtr<nsISupportsArray> array;
rv = NS_NewISupportsArray(getter_AddRefs(array));
if (NS_FAILED(rv)) return rv;
array->AppendElement(mNC_Child);
array->AppendElement(mNC_pulse);
return NS_NewArrayEnumerator(labels, array);
}
else if (isFileURI(source))
{
nsCOMPtr<nsISupportsArray> array;
rv = NS_NewISupportsArray(getter_AddRefs(array));
if (NS_FAILED(rv)) return rv;
if (isDirURI(source))
{
#ifdef XP_WIN
if (isValidFolder(source))
{
array->AppendElement(mNC_Child);
}
#else
array->AppendElement(mNC_Child);
#endif
array->AppendElement(mNC_pulse);
}
return NS_NewArrayEnumerator(labels, array);
}
return NS_NewEmptyEnumerator(labels);
}
NS_IMETHODIMP
FileSystemDataSource::GetAllResources(nsISimpleEnumerator** aCursor)
{
NS_NOTYETIMPLEMENTED("sorry!");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
FileSystemDataSource::AddObserver(nsIRDFObserver *n)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
FileSystemDataSource::RemoveObserver(nsIRDFObserver *n)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
FileSystemDataSource::GetAllCmds(nsIRDFResource* source,
nsISimpleEnumerator/*<nsIRDFResource>*/** commands)
{
return(NS_NewEmptyEnumerator(commands));
}
NS_IMETHODIMP
FileSystemDataSource::IsCommandEnabled(nsISupportsArray/*<nsIRDFResource>*/* aSources,
nsIRDFResource* aCommand,
nsISupportsArray/*<nsIRDFResource>*/* aArguments,
bool* aResult)
{
return(NS_ERROR_NOT_IMPLEMENTED);
}
NS_IMETHODIMP
FileSystemDataSource::DoCommand(nsISupportsArray/*<nsIRDFResource>*/* aSources,
nsIRDFResource* aCommand,
nsISupportsArray/*<nsIRDFResource>*/* aArguments)
{
return(NS_ERROR_NOT_IMPLEMENTED);
}
NS_IMETHODIMP
FileSystemDataSource::BeginUpdateBatch()
{
return NS_OK;
}
NS_IMETHODIMP
FileSystemDataSource::EndUpdateBatch()
{
return NS_OK;
}
nsresult
FileSystemDataSource::GetVolumeList(nsISimpleEnumerator** aResult)
{
nsresult rv;
nsCOMPtr<nsISupportsArray> volumes;
rv = NS_NewISupportsArray(getter_AddRefs(volumes));
if (NS_FAILED(rv)) return rv;
nsCOMPtr<nsIRDFResource> vol;
#ifdef XP_WIN
PRInt32 driveType;
PRUnichar drive[32];
PRInt32 volNum;
char *url;
for (volNum = 0; volNum < 26; volNum++)
{
swprintf( drive, L"%c:\\", volNum + (PRUnichar)'A');
driveType = GetDriveTypeW(drive);
if (driveType != DRIVE_UNKNOWN && driveType != DRIVE_NO_ROOT_DIR)
{
if (nsnull != (url = PR_smprintf("file:///%c|/", volNum + 'A')))
{
rv = mRDFService->GetResource(nsDependentCString(url),
getter_AddRefs(vol));
PR_Free(url);
if (NS_FAILED(rv)) return rv;
volumes->AppendElement(vol);
}
}
}
#endif
#ifdef XP_UNIX
mRDFService->GetResource(NS_LITERAL_CSTRING("file:///"), getter_AddRefs(vol));
volumes->AppendElement(vol);
#endif
#ifdef XP_OS2
ULONG ulDriveNo = 0;
ULONG ulDriveMap = 0;
char *url;
rv = DosQueryCurrentDisk(&ulDriveNo, &ulDriveMap);
if (NS_FAILED(rv))
return rv;
for (int volNum = 0; volNum < 26; volNum++)
{
if (((ulDriveMap << (31 - volNum)) >> 31))
{
if (nsnull != (url = PR_smprintf("file:///%c|/", volNum + 'A')))
{
rv = mRDFService->GetResource(nsDependentCString(url), getter_AddRefs(vol));
PR_Free(url);
if (NS_FAILED(rv)) return rv;
volumes->AppendElement(vol);
}
}
}
#endif
return NS_NewArrayEnumerator(aResult, volumes);
}
#ifdef XP_WIN
bool
FileSystemDataSource::isValidFolder(nsIRDFResource *source)
{
bool isValid = true;
if (ieFavoritesDir.IsEmpty()) return(isValid);
nsresult rv;
nsCString uri;
rv = source->GetValueUTF8(uri);
if (NS_FAILED(rv)) return(isValid);
NS_ConvertUTF8toUTF16 theURI(uri);
if (theURI.Find(ieFavoritesDir) == 0)
{
isValid = false;
nsCOMPtr<nsISimpleEnumerator> folderEnum;
if (NS_SUCCEEDED(rv = GetFolderList(source, true, false, getter_AddRefs(folderEnum))))
{
bool hasAny = false, hasMore;
while (NS_SUCCEEDED(folderEnum->HasMoreElements(&hasMore)) &&
hasMore)
{
hasAny = true;
nsCOMPtr<nsISupports> isupports;
if (NS_FAILED(rv = folderEnum->GetNext(getter_AddRefs(isupports))))
break;
nsCOMPtr<nsIRDFResource> res = do_QueryInterface(isupports);
if (!res) break;
nsCOMPtr<nsIRDFLiteral> nameLiteral;
if (NS_FAILED(rv = GetName(res, getter_AddRefs(nameLiteral))))
break;
const PRUnichar *uniName;
if (NS_FAILED(rv = nameLiteral->GetValueConst(&uniName)))
break;
nsAutoString name(uniName);
// An empty folder, or a folder that contains just "desktop.ini",
// is considered to be a IE Favorite; otherwise, its a folder
if (!name.LowerCaseEqualsLiteral("desktop.ini"))
{
isValid = true;
break;
}
}
if (!hasAny) isValid = true;
}
}
return(isValid);
}
#endif
nsresult
FileSystemDataSource::GetFolderList(nsIRDFResource *source, bool allowHidden,
bool onlyFirst, nsISimpleEnumerator** aResult)
{
if (!isDirURI(source))
return(NS_RDF_NO_VALUE);
nsresult rv;
nsCOMPtr<nsISupportsArray> nameArray;
rv = NS_NewISupportsArray(getter_AddRefs(nameArray));
if (NS_FAILED(rv))
return(rv);
const char *parentURI = nsnull;
rv = source->GetValueConst(&parentURI);
if (NS_FAILED(rv))