WMRM_LICENSE_STATE_CATEGORY
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WMRM_LICENSE_STATE_CATEGORY
The WMRM_LICENSE_STATE_CATEGORY enumeration type defines the state of existing licenses for a content item.
Syntax
typedef enum WMRM_LICENSE_STATE_CATEGORY{
WMRM_LICENSE_STATE_NORIGHT = 0,
WMRM_LICENSE_STATE_UNLIM = 1,
WMRM_LICENSE_STATE_COUNT = 2,
WMRM_LICENSE_STATE_FROM = 3,
WMRM_LICENSE_STATE_UNTIL = 4,
WMRM_LICENSE_STATE_FROM_UNTIL = 5,
WMRM_LICENSE_STATE_COUNT_FROM = 6,
WMRM_LICENSE_STATE_COUNT_UNTIL = 7,
WMRM_LICENSE_STATE_COUNT_FROM_UNTIL = 8,
WMRM_LICENSE_STATE_EXPIRATION_AFTER_FIRSTUSE = 9
};
Members
WMRM_LICENSE_STATE_NORIGHT
The license does not allow rights to perform this action, or a license does not exist.
WMRM_LICENSE_STATE_UNLIM
The license allows unlimited rights to perform this action.
WMRM_LICENSE_STATE_COUNT
This action can be performed a certain number of times. Use the WMRMLicenseStateData.Counts property to retrieve that value.
WMRM_LICENSE_STATE_FROM
This action cannot be performed until a specific date. Use the WMRMLicenseStateData.Dates property to retrieve the date.
WMRM_LICENSE_STATE_UNTIL
This action cannot be performed after a certain date. Use the WMRMLicenseStateData.Dates property to retrieve the date.
WMRM_LICENSE_STATE_FROM_UNTIL
This action can be performed only within a specific range of dates. Use the WMRMLicenseStateData.Dates property to retrieve an array containing the start and end dates.
WMRM_LICENSE_STATE_COUNT_FROM
This action can be performed only a certain number of times, starting from a specific date. Use the WMRMLicenseStateData.Counts and WMRMLicenseStateData.Dates properties to retrieve those values.
WMRM_LICENSE_STATE_COUNT_UNTIL
This action can be performed a certain number of times until a specific date. Use the WMRMLicenseStateData.Counts and WMRMLicenseStateData.Dates properties to retrieve those values.
WMRM_LICENSE_STATE_COUNT_FROM_UNTIL
This action can be performed only a certain number of times within a specific range of dates. Use the WMRMLicenseStateData.Counts and WMRMLicenseStateData.Dates properties to retrieve those values.
WMRM_LICENSE_STATE_EXPIRATION_AFTER_FIRSTUSE
License restrictions do not begin until after the first use of the content.
If the license has not been used, use the WMRMLicenseStateData.Counts property to retrieve the number hours after which the license will expire (after it is first used). If the license has been used, use the WMRMLicenseStateData.Dates property to retrieve the expiration date.
Example Code
' Declare variables.
Dim ChallengeObj ' WMRMChallenge object
Dim ChainCollObj ' WMRMUplinkCollection object
Dim ChainObj ' WMRMUplink object
Dim LeafLicenseStateObj ' WMRMLicenseStateData object
Dim RootLicenseStateObj ' WMRMLicenseStateData object
Dim HeaderObj ' WMRMHeader object
Dim ContentServerPubKey ' Public key of the content server
Dim Seed ' License key seed
Dim LicChain ' License chain flag
Dim strLicenseRequested ' License request string
Dim varClientInfo ' Client information
Dim varHeader ' Content header
Dim blnResult ' Signature verification
Dim SimpleLeafKID ' Key ID of a simple license or leaf license
Dim IndiVersion ' Security version of the DRM component
Dim strRevinfo ' Revocation information string
Dim ContainsRevinfo ' Flag for revocation information
Dim strClientCRLs ' Supported revocation lists string
Dim RootKID ' Key ID of the root license
Dim RootCat ' License state data for root licenses
Dim RCountArray ' Count array
Dim RDateArray ' Date array
Dim RStreamID ' Stream ID
Dim RVague ' Vagueness
Dim IssueRoot ' Root license flag
Dim Rcounts ' Remaining counts
Dim RstartDate ' Start date
Dim RExpDate ' Expiration date
Dim LeafCat ' License state data for leaf licenses
Dim LCountArray ' Count array
Dim LDateArray ' Date array
Dim LStreamID ' Stream ID
Dim LVague ' Vagueness
Dim IssueLeaf ' Leaf license flag
Dim Lcounts ' Remaining counts
Dim LstartDate ' Start date
Dim LExpDate ' Expiration date
'"""""""""""""""""""""""""""""""""""""""""""""""""""""
' Set variables.
'"""""""""""""""""""""""""""""""""""""""""""""""""""""
ContentServerPubKey = Application("contentserverpubkey")
Seed = Application("seed")
LicChain = ""
'"""""""""""""""""""""""""""""""""""""""""""""""""""""
' Retrieve the license request. Get the client information and content header.
'"""""""""""""""""""""""""""""""""""""""""""""""""""""
Set ChallengeObj = Server.CreateObject("WMRMObjs.WMRMchallenge")
strLicenseRequested = Request.Form("challenge")
ChallengeObj.Challenge = strLicenseRequested
varClientInfo = ChallengeObj.ClientInfo
varHeader = ChallengeObj.Header
'"""""""""""""""""""""""""""""""""""""""""""""""""""""
' Check for revocation information.
'"""""""""""""""""""""""""""""""""""""""""""""""""""""
strRevinfo = ChallengeObj.RevInfo
ContainsRevinfo = ChallengeObj.RevInfoPresent
'"""""""""""""""""""""""""""""""""""""""""""""""""""""
' Put the content header into the header object. Retrieve
' the KID and required individualization version.
'"""""""""""""""""""""""""""""""""""""""""""""""""""""
Set HeaderObj = Server.CreateObject("WMRMObjs.WMRMheader")
HeaderObj.Header = varHeader
blnResult = HeaderObj.Verify(ContentServerPubKey)
SimpleLeafKID = HeaderObj.KeyID
IndiVersion = HeaderObj.IndividualizedVersion
' If IndividualizedVersion is not specified, an error
' might be set.
'"""""""""""""""""""""""""""""""""""""""""""""""""""""
' If this is a chained license, retrieve the root license KID.
'"""""""""""""""""""""""""""""""""""""""""""""""""""""
Set ChainCollObj = ChallengeObj.Uplinks
If (Err.Number = 0) Then ' Request for a license chain.
LicChain = "chain"
' Get license state data and key ID for the root license.
Set ChainObj = ChainCollObj.item(1)
RootKID = ChainObj.KID
' Get license state data to determine whether to issue
' a root license.
Set RootLicenseStateObj = ChainObj.LicenseState
RootCat = cstr(RootLicenseStateObj.Category)
Select Case RootCat
case 0 ' The root license has no rights.
IssueRoot = True
case 1 ' The root license has unlimited play counts.
IssueRoot = False
case 2 ' The root license has remaining play counts.
RCountArray = RootLicenseStateObj.Counts
RCounts = cstr(RCountArray(0))
IssueRoot = False
case 3 ' The root license has a start date.
RDateArray = RootLicenseStateObj.Dates
RStartDate = cstr(RDateArray(0))
IssueRoot = False
case 4 ' The root license has an expiration date.
RDateArray = RootLicenseStateObj.Dates
RExpDate = cstr(RDateArray(0))
IssueRoot = False
case 5 ' The root license has start and expiration dates.
RDateArray = RootLicenseStateObj.Dates
RStartDate = cstr(RDateArray(0))
RExpDate = cstr(RDateArray(1))
IssueRoot = False
case 6 ' The root license has a start date and
' remaining play counts.
RDateArray = RootLicenseStateObj.Dates
RStartDate = cstr(RDateArray(0))
RCountArray = RootLicenseStateObj.Counts
RCounts = cstr(RCountArray(0))
IssueRoot = False
case 7 ' The root license has an expiration date and
' remaining play counts.
RDateArray = RootLicenseStateObj.Dates
RExpDate = cstr(RDateArray(0))
RCountArray = RootLicenseStateObj.Counts
RCounts = cstr(RCountArray(0))
IssueRoot = False
case 8 ' The root license has start and expiration
' dates, and remaining play counts.
RDateArray = RootLicenseStateObj.Dates
RStartDate = cstr(RDateArray(0))
RExpDate = cstr(RDateArray(1))
RCountArray = RootLicenseStateObj.Counts
RCounts = cstr(RCountArray(0))
IssueRoot = False
case 9 ' The root license expires after first use.
' Add logic to evaluate whether to issue the license.
IssueRoot = False
End Select
RStreamID = RootLicenseStateObj.StreamID ' This value is always 0.
RVague = RootLicenseStateObj.Vagueness
' Get license state data to determine whether to issue
' a leaf license.
Set ChainObj = ChainCollObj.item(0)
Set LeafLicenseStateObj = ChainObj.LicenseState
LeafCat = cstr(LeafLicenseStateObj.Category)
Select Case LeafCat
case 0 ' The leaf license has no rights.
IssueLeaf = True
case 1 ' The leaf license has unlimited play counts.
IssueLeaf = False
case 2 ' The leaf license has remaining play counts.
LCountArray = LeafLicenseStateObj.Counts
LCounts = cstr(LCountArray(0))
IssueLeaf = False
case 3 ' The leaf license has a start date.
LDateArray = LeafLicenseStateObj.Dates
LStartDate = cstr(LDateArray(0))
IssueLeaf = False
case 4 ' The leaf license has an expiration date.
LDateArray = LeafLicenseStateObj.Dates
LExpDate = cstr(LDateArray(0))
IssueLeaf = False
case 5 ' The leaf license has start and expiration dates.
LDateArray = LeafLicenseStateObj.Dates
LStartDate = cstr(LDateArray(0))
LExpDate = cstr(LDateArray(1))
IssueLeaf = False
case 6 ' The leaf license has a start date and
' remaining play counts.
LDateArray = LeafLicenseStateObj.Dates
LStartDate = cstr(LDateArray(0))
LCountArray = LeafLicenseStateObj.Counts
LCounts = cstr(LCountArray(0))
IssueLeaf = False
case 7 ' The leaf license has an expiration date and
' remaining play counts.
LDateArray = LeafLicenseStateObj.Dates
LExpDate = cstr(LDateArray(0))
LCountArray = LeafLicenseStateObj.Counts
LCounts = cstr(LCountArray(0))
IssueLeaf = False
case 8 ' The leaf license has start and expiration
' dates, and remaining play counts.
LDateArray = LeafLicenseStateObj.Dates
LStartDate = cstr(LDateArray(0))
LExpDate = cstr(LDateArray(1))
LCountArray = LeafLicenseStateObj.Counts
LCounts = cstr(LCountArray(0))
IssueLeaf = False
case 9 ' The root license expires after first use.
IssueLeaf = False
End Select
LStreamID = LeafLicenseStateObj.StreamID ' This value is always 0.
LVague = LeafLicenseStateObj.Vagueness
Else ' An error indicates a request for a simple license.
err.clear
LicChain = "simple"
End If
' Continue generating the license.
Requirements
Version: Windows Media Rights Manager 10 SDK or later
Reference: wmrmobjs 1.0 Type Library
Library: wmrmobjs.dll
Platform: Windows Server 2003
See Also
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