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RetroZilla/xpinstall/src/nsUpdateNotification.cpp
Ryan Nematz 2f2ae146c0 first commit
2015-10-20 23:03:22 -04:00

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** 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 Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998-1999
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Doug Turner <dougt@netscape.com>
* Pierre Phaneuf <pp@ludusdesign.com>
*
* 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 ***** */
#include "nsUpdateNotification.h"
#include "nsISupports.h"
#include "nsIServiceManager.h"
#include "nsCOMPtr.h"
#include "nsIComponentManager.h"
#include "nsIGenericFactory.h"
#include "nsIRDFContainer.h"
#include "nsIRDFDataSource.h"
#include "nsIRDFService.h"
#include "nsIRDFRemoteDataSource.h"
#include "nsRDFCID.h"
#include "nsIRDFXMLSink.h"
#include "nsIPrefBranch.h"
#include "nsIPrefService.h"
#include "nsISoftwareUpdate.h"
#define NC_RDF_NAME "http://home.netscape.com/NC-rdf#name"
#define NC_RDF_SOURCE "http://home.netscape.com/NC-rdf#source"
#define NC_RDF_URL "http://home.netscape.com/NC-rdf#url"
#define NC_RDF_CHILD "http://home.netscape.com/NC-rdf#child"
#define NC_RDF_NOTIFICATION_ROOT "http://home.netscape.com/NC-rdf#SoftwareNotificationRoot"
#define NC_XPI_SOURCES "http://home.netscape.com/NC-rdf#SoftwareUpdateDataSources"
#define NC_XPI_PACKAGES "http://home.netscape.com/NC-rdf#SoftwarePackages"
#define NC_XPI_TITLE "http://home.netscape.com/NC-rdf#title"
#define NC_XPI_REGKEY "http://home.netscape.com/NC-rdf#registryKey"
#define NC_XPI_VERSION "http://home.netscape.com/NC-rdf#version"
#define NC_XPI_DESCRIPTION "http://home.netscape.com/NC-rdf#description"
static NS_DEFINE_CID(kRDFServiceCID, NS_RDFSERVICE_CID);
static NS_DEFINE_CID(kRDFContainerCID, NS_RDFCONTAINER_CID);
nsIRDFResource* nsXPINotifierImpl::kXPI_NotifierSources = nsnull;
nsIRDFResource* nsXPINotifierImpl::kXPI_NotifierPackages = nsnull;
nsIRDFResource* nsXPINotifierImpl::kXPI_NotifierPackage_Title = nsnull;
nsIRDFResource* nsXPINotifierImpl::kXPI_NotifierPackage_Version = nsnull;
nsIRDFResource* nsXPINotifierImpl::kXPI_NotifierPackage_Description = nsnull;
nsIRDFResource* nsXPINotifierImpl::kXPI_NotifierPackage_RegKey = nsnull;
nsIRDFResource* nsXPINotifierImpl::kNC_NotificationRoot = nsnull;
nsIRDFResource* nsXPINotifierImpl::kNC_Source = nsnull;
nsIRDFResource* nsXPINotifierImpl::kNC_Name = nsnull;
nsIRDFResource* nsXPINotifierImpl::kNC_URL = nsnull;
nsIRDFResource* nsXPINotifierImpl::kNC_Child = nsnull;
nsXPINotifierImpl::nsXPINotifierImpl()
: mRDF(nsnull)
{
mPendingRefreshes = 0;
static NS_DEFINE_CID(kRDFInMemoryDataSourceCID, NS_RDFINMEMORYDATASOURCE_CID);
mNotifications = do_CreateInstance(kRDFInMemoryDataSourceCID);
}
nsXPINotifierImpl::~nsXPINotifierImpl()
{
NS_IF_RELEASE(mRDF);
NS_IF_RELEASE(kXPI_NotifierSources);
NS_IF_RELEASE(kXPI_NotifierPackages);
NS_IF_RELEASE(kXPI_NotifierPackage_Title);
NS_IF_RELEASE(kXPI_NotifierPackage_Version);
NS_IF_RELEASE(kXPI_NotifierPackage_Description);
NS_IF_RELEASE(kXPI_NotifierPackage_RegKey);
NS_IF_RELEASE(kNC_NotificationRoot);
NS_IF_RELEASE(kNC_Source);
NS_IF_RELEASE(kNC_Name);
NS_IF_RELEASE(kNC_URL);
NS_IF_RELEASE(kNC_Child);
}
NS_IMPL_ISUPPORTS2(nsXPINotifierImpl, nsIRDFXMLSinkObserver, nsIUpdateNotification)
nsresult
nsXPINotifierImpl::NotificationEnabled(PRBool* aReturn)
{
*aReturn = PR_FALSE;
nsCOMPtr<nsIPrefBranch> prefBranch = do_GetService(NS_PREFSERVICE_CONTRACTID);
if ( prefBranch )
{
PRBool value;
// check to see if we are on.
nsresult rv = prefBranch->GetBoolPref( (const char*) XPINSTALL_NOTIFICATIONS_ENABLE, &value);
if (NS_SUCCEEDED(rv) && value)
{
// check to see the last time we did anything. Since flash does not have a persistant
// way to do poll invervals longer than a session, we will implemented that here by using the
// preferences.
PRInt32 intervalHours = 0;
PRTime now = 0;
PRInt32 nowSec = 0;
PRInt32 lastTime = 0;
rv = prefBranch->GetIntPref(XPINSTALL_NOTIFICATIONS_INTERVAL, &intervalHours);
if (NS_FAILED(rv))
{
intervalHours = 7*24; // default at once a week
rv = prefBranch->SetIntPref(XPINSTALL_NOTIFICATIONS_INTERVAL, intervalHours);
}
rv = prefBranch->GetIntPref(XPINSTALL_NOTIFICATIONS_LASTDATE, &lastTime);
now = PR_Now();
// nowSec = now / 1000000
LL_DIV(nowSec, now, 1000000);
if (NS_FAILED(rv) || lastTime == 0)
{
rv = prefBranch->SetIntPref(XPINSTALL_NOTIFICATIONS_LASTDATE, nowSec);
return NS_OK;
}
if ((lastTime + (intervalHours*60*24)) <= nowSec)
{
*aReturn = PR_TRUE;
}
}
}
return NS_OK;
}
nsresult
nsXPINotifierImpl::Init()
{
PRBool enabled;
NotificationEnabled(&enabled);
if (!enabled)
return NS_ERROR_FAILURE;
if (mNotifications == nsnull)
return NS_ERROR_FAILURE;
nsresult rv;
nsCOMPtr<nsIRDFDataSource> distributors;
nsCOMPtr<nsIRDFContainer> distributorsContainer;
nsCOMPtr <nsISimpleEnumerator> distributorEnumerator;
PRBool moreElements;
// Read the distributor registry
rv = CallGetService(kRDFServiceCID, &mRDF);
if (NS_FAILED(rv)) return rv;
if (! kXPI_NotifierSources)
{
mRDF->GetResource(NC_XPI_SOURCES, &kXPI_NotifierSources);
mRDF->GetResource(NC_XPI_PACKAGES, &kXPI_NotifierPackages);
mRDF->GetResource(NC_XPI_TITLE, &kXPI_NotifierPackage_Title);
mRDF->GetResource(NC_XPI_VERSION, &kXPI_NotifierPackage_Version);
mRDF->GetResource(NC_XPI_DESCRIPTION, &kXPI_NotifierPackage_Description);
mRDF->GetResource(NC_XPI_REGKEY, &kXPI_NotifierPackage_RegKey);
mRDF->GetResource(NC_RDF_NOTIFICATION_ROOT, &kNC_NotificationRoot);
mRDF->GetResource(NC_RDF_SOURCE, &kNC_Source);
mRDF->GetResource(NC_RDF_NAME, &kNC_Name);
mRDF->GetResource(NC_RDF_URL, &kNC_URL);
mRDF->GetResource(NC_RDF_CHILD, &kNC_Child);
}
rv = OpenRemoteDataSource(BASE_DATASOURCE_URL, PR_TRUE, getter_AddRefs(distributors));
if (NS_FAILED(rv)) return rv;
distributorsContainer = do_CreateInstance(kRDFContainerCID, &rv);
if (NS_SUCCEEDED(rv))
{
rv = distributorsContainer->Init(distributors, kXPI_NotifierSources);
if (NS_SUCCEEDED(rv))
{
rv = distributorsContainer->GetElements(getter_AddRefs(distributorEnumerator));
if (NS_SUCCEEDED(rv))
{
distributorEnumerator->HasMoreElements(&moreElements);
while (moreElements)
{
nsCOMPtr<nsISupports> i;
rv = distributorEnumerator->GetNext(getter_AddRefs(i));
if (NS_FAILED(rv)) break;
nsCOMPtr<nsIRDFResource> aDistributor(do_QueryInterface(i, &rv));
if (NS_FAILED(rv)) break;
char* uri;
nsCOMPtr<nsIRDFDataSource> remoteDatasource;
aDistributor->GetValue(&uri);
rv = OpenRemoteDataSource(uri, PR_FALSE, getter_AddRefs(remoteDatasource));
nsMemory::Free(uri);
if (NS_FAILED(rv)) break;
distributorEnumerator->HasMoreElements(&moreElements);
}
}
}
}
return NS_OK;
}
PRBool
nsXPINotifierImpl::IsNewerOrUninstalled(const char* regKey, const char* versionString)
{
PRBool needJar = PR_FALSE;
REGERR status = VR_ValidateComponent( (char*) regKey );
if ( status == REGERR_NOFIND || status == REGERR_NOFILE )
{
// either component is not in the registry or it's a file
// node and the physical file is missing
needJar = PR_TRUE;
}
else
{
VERSION oldVersion;
status = VR_GetVersion( (char*)regKey, &oldVersion );
if ( status != REGERR_OK )
{
needJar = PR_TRUE;
}
else
{
VERSION newVersion;
StringToVersionNumbers(versionString, &(newVersion).major, &(newVersion).minor, &(newVersion).release, &(newVersion).build);
if ( CompareVersions(&oldVersion, &newVersion) < 0 )
needJar = PR_TRUE;
}
}
return needJar;
}
PRInt32
nsXPINotifierImpl::CompareVersions(VERSION *oldversion, VERSION *newVersion)
{
PRInt32 diff;
if ( oldversion->major == newVersion->major )
{
if ( oldversion->minor == newVersion->minor )
{
if ( oldversion->release == newVersion->release )
{
if ( oldversion->build == newVersion->build )
diff = 0;
else if ( oldversion->build > newVersion->build )
diff = 1;
else
diff = -1;
}
else if ( oldversion->release > newVersion->release )
diff = 1;
else
diff = -1;
}
else if ( oldversion->minor > newVersion->minor )
diff = 1;
else
diff = -1;
}
else if ( oldversion->major > newVersion->major )
diff = 1;
else
diff = -1;
return diff;
}
void
nsXPINotifierImpl::StringToVersionNumbers(const nsString& version, int32 *aMajor, int32 *aMinor, int32 *aRelease, int32 *aBuild)
{
PRInt32 errorCode;
int dot = version.FindChar('.', 0);
if ( dot == -1 )
{
*aMajor = version.ToInteger(&errorCode);
}
else
{
nsString majorStr;
version.Mid(majorStr, 0, dot);
*aMajor = majorStr.ToInteger(&errorCode);
int prev = dot+1;
dot = version.FindChar('.',prev);
if ( dot == -1 )
{
nsString minorStr;
version.Mid(minorStr, prev, version.Length() - prev);
*aMinor = minorStr.ToInteger(&errorCode);
}
else
{
nsString minorStr;
version.Mid(minorStr, prev, dot - prev);
*aMinor = minorStr.ToInteger(&errorCode);
prev = dot+1;
dot = version.FindChar('.',prev);
if ( dot == -1 )
{
nsString releaseStr;
version.Mid(releaseStr, prev, version.Length() - prev);
*aRelease = releaseStr.ToInteger(&errorCode);
}
else
{
nsString releaseStr;
version.Mid(releaseStr, prev, dot - prev);
*aRelease = releaseStr.ToInteger(&errorCode);
prev = dot+1;
if ( version.Length() > dot )
{
nsString buildStr;
version.Mid(buildStr, prev, version.Length() - prev);
*aBuild = buildStr.ToInteger(&errorCode);
}
}
}
}
}
nsresult
nsXPINotifierImpl::OpenRemoteDataSource(const char* aURL, PRBool blocking, nsIRDFDataSource** aResult)
{
static NS_DEFINE_CID(kRDFXMLDataSourceCID, NS_RDFXMLDATASOURCE_CID);
nsresult rv;
nsCOMPtr<nsIRDFRemoteDataSource> remote = do_CreateInstance(kRDFXMLDataSourceCID, &rv);
if (NS_FAILED(rv)) return rv;
rv = remote->Init(aURL);
if (NS_SUCCEEDED(rv))
{
if (! blocking)
{
nsCOMPtr<nsIRDFXMLSink> sink = do_QueryInterface(remote, &rv);
if (NS_FAILED(rv)) return rv;
rv = sink->AddXMLSinkObserver(this);
if (NS_FAILED(rv)) return rv;
}
rv = remote->Refresh(blocking);
if (NS_FAILED(rv)) return rv;
nsCOMPtr<nsIRDFDataSource> result = do_QueryInterface(remote, &rv);
*aResult = result;
NS_IF_ADDREF(*aResult);
return rv;
}
else
{
// we've already loaded this datasource. use cached copy
return mRDF->GetDataSource(aURL, aResult);
}
}
NS_IMETHODIMP
nsXPINotifierImpl::New(nsISupports* aOuter, REFNSIID aIID, void** aResult)
{
NS_PRECONDITION(aOuter == nsnull, "no aggregation");
if (aOuter)
return NS_ERROR_NO_AGGREGATION;
nsXPINotifierImpl* result = new nsXPINotifierImpl();
if (! result)
return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(result); // stabilize
nsresult rv;
rv = result->Init();
if (NS_SUCCEEDED(rv)) {
rv = result->QueryInterface(aIID, aResult);
}
NS_RELEASE(result);
return rv;
}
NS_IMETHODIMP
nsXPINotifierImpl::OnBeginLoad(nsIRDFXMLSink *aSink)
{
return NS_OK;
}
NS_IMETHODIMP
nsXPINotifierImpl::OnInterrupt(nsIRDFXMLSink *aSink)
{
return NS_OK;
}
NS_IMETHODIMP
nsXPINotifierImpl::OnResume(nsIRDFXMLSink *aSink)
{
return NS_OK;
}
NS_IMETHODIMP
nsXPINotifierImpl::OnEndLoad(nsIRDFXMLSink *aSink)
{
nsresult rv;
(void) aSink->RemoveXMLSinkObserver(this);
nsCOMPtr<nsIRDFDataSource> distributorDataSource = do_QueryInterface(aSink, &rv);
if (NS_FAILED(rv)) return rv;
nsCOMPtr <nsISimpleEnumerator> packageEnumerator;
PRBool moreElements;
nsCOMPtr<nsIRDFContainer> distributorContainer =
do_CreateInstance(kRDFContainerCID, &rv);
if (NS_SUCCEEDED(rv))
{
rv = distributorContainer->Init(distributorDataSource, kXPI_NotifierPackages);
if (NS_SUCCEEDED(rv))
{
rv = distributorContainer->GetElements(getter_AddRefs(packageEnumerator));
if (NS_SUCCEEDED(rv))
{
packageEnumerator->HasMoreElements(&moreElements);
while (moreElements)
{
nsCOMPtr<nsISupports> i;
rv = packageEnumerator->GetNext(getter_AddRefs(i));
if (NS_FAILED(rv)) break;
nsCOMPtr<nsIRDFResource> aPackage(do_QueryInterface(i, &rv));
if (NS_FAILED(rv)) break;
// Get the version information
nsCOMPtr<nsIRDFNode> versionNode;
distributorDataSource->GetTarget(aPackage,
kXPI_NotifierPackage_Version,
PR_TRUE,
getter_AddRefs(versionNode));
nsCOMPtr<nsIRDFLiteral> version(do_QueryInterface(versionNode, &rv));
if (NS_FAILED(rv)) break;
// Get the regkey information
nsCOMPtr<nsIRDFNode> regkeyNode;
distributorDataSource->GetTarget(aPackage,
kXPI_NotifierPackage_RegKey,
PR_TRUE,
getter_AddRefs(regkeyNode));
nsCOMPtr<nsIRDFLiteral> regkey(do_QueryInterface(regkeyNode, &rv));
if (NS_FAILED(rv)) break;
// convert them into workable nsAutoStrings
PRUnichar* regkeyCString;
regkey->GetValue(&regkeyCString);
nsString regKeyString(regkeyCString);
PRUnichar* versionCString;
version->GetValue(&versionCString);
nsString versionString(versionCString);
nsMemory::Free(versionCString);
nsMemory::Free(regkeyCString);
// check to see if this software title should be "flashed"
if (IsNewerOrUninstalled(NS_ConvertUCS2toUTF8(regKeyString).get(), NS_ConvertUCS2toUTF8(versionString).get()))
{
//assert into flash
nsCOMPtr<nsIRDFNode> urlNode;
distributorDataSource->GetTarget(kXPI_NotifierPackages,
kNC_URL,
PR_TRUE,
getter_AddRefs(urlNode));
nsCOMPtr<nsIRDFLiteral> url(do_QueryInterface(urlNode, &rv));
if (NS_FAILED(rv)) break;
nsCOMPtr<nsIRDFNode> titleNode;
distributorDataSource->GetTarget(kXPI_NotifierPackages,
kXPI_NotifierPackage_Title,
PR_TRUE,
getter_AddRefs(titleNode));
nsCOMPtr<nsIRDFLiteral> title(do_QueryInterface(titleNode, &rv));
if (NS_FAILED(rv)) break;
nsCOMPtr<nsIRDFDataSource> ds = do_QueryInterface(mNotifications);
ds->Assert(aPackage, kNC_Name, title, PR_TRUE);
ds->Assert(aPackage, kNC_URL, url, PR_TRUE);
ds->Assert(kNC_NotificationRoot, kNC_Child, aPackage, PR_TRUE);
break;
}
}
}
}
}
VR_Close();
return NS_OK;
}
NS_IMETHODIMP
nsXPINotifierImpl::OnError(nsIRDFXMLSink *aSink, nsresult aResult, const PRUnichar* aErrorMsg)
{
(void) aSink->RemoveXMLSinkObserver(this);
return NS_OK;
}
NS_IMETHODIMP
nsXPINotifierImpl::DisplayUpdateDialog(void)
{
nsresult rv;
nsCOMPtr <nsISimpleEnumerator> packages;
PRBool moreElements;
nsCOMPtr<nsIRDFDataSource> ds = do_QueryInterface(mNotifications, &rv);
if (NS_SUCCEEDED(rv))
{
rv = ds->GetAllResources(getter_AddRefs(packages));
if (NS_SUCCEEDED(rv))
{
packages->HasMoreElements(&moreElements);
while (moreElements)
{
nsCOMPtr<nsISupports> i;
rv = packages->GetNext(getter_AddRefs(i));
if (NS_FAILED(rv)) break;
nsCOMPtr<nsIRDFResource> aPackage(do_QueryInterface(i, &rv));
if (NS_FAILED(rv)) break;
// Get the version information
nsCOMPtr<nsIRDFNode> name;
ds->GetTarget(aPackage,
nsXPINotifierImpl::kNC_Name,
PR_TRUE,
getter_AddRefs(name));
nsCOMPtr<nsIRDFLiteral> nameLiteral = do_QueryInterface(name, &rv);
if (NS_FAILED(rv)) break;
}
}
}
return rv;
}
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