public Lease ProlongLease(Lease oldLease, string authenticatedUserName, DateTime time)
{
Lease newLease = new Lease
{
License = oldLease.License,
AuthenticatedUser = authenticatedUserName,
OverwritesLease = oldLease,
StartTime = oldLease.StartTime,
EndTime = time.AddDays(Settings.Default.NewLeaseDays),
Machine = oldLease.Machine,
UserName = oldLease.UserName,
Grace = oldLease.Grace
};
if (!this.FixLease(newLease, time))
{
return(null);
}
this.Leases.InsertOnSubmit(newLease);
LeaseService.CheckAssertions(this, newLease.License, time);
return(newLease);
}
public Lease CreateLease(License license, string user, string machine, string authenticatedUserName, DateTime time, bool grace)
{
Lease lease = new Lease
{
License = license,
AuthenticatedUser = authenticatedUserName,
EndTime = time.AddDays(Settings.Default.NewLeaseDays),
Machine = machine,
StartTime = time,
UserName = user,
Grace = grace
};
if (!this.FixLease(lease, time))
{
return(null);
}
this.Leases.InsertOnSubmit((lease));
LeaseService.CheckAssertions(this, license, time);
return(lease);
}
public void ProcessRequest(HttpContext context)
{
this.context = context;
using (Database db = new Database())
{
// Parse requested product code.
string productCode = context.Request.QueryString["product"];
if (string.IsNullOrEmpty(productCode))
{
this.SetError(400, "Missing query string argument: product.");
return;
}
// Parse build date.
string buildDateString = context.Request.QueryString["buildDate"];
DateTime? buildDate = null;
if (!string.IsNullOrEmpty(buildDateString))
{
DateTime buildDateNotNull;
if (
!DateTime.TryParse(buildDateString, CultureInfo.InvariantCulture, DateTimeStyles.RoundtripKind,
out buildDateNotNull))
{
this.SetError(400, "Cannot parse the argument: buildDate.");
return;
}
buildDate = buildDateNotNull;
}
// Parse machine name.
string machine = context.Request.QueryString["machine"];
if (string.IsNullOrEmpty(machine))
{
this.SetError(400, "Missing query string argument: machine.");
return;
}
machine = machine.ToLowerInvariant();
// Parse user name.
string userName = context.Request.QueryString["user"];
if (string.IsNullOrEmpty(userName))
{
this.SetError(400, "Missing query string argument: user.");
return;
}
userName = userName.ToLowerInvariant();
bool releaseMutex = false;
try
{
while (true)
{
try
{
if (!mutex.WaitOne(TimeSpan.FromSeconds(Settings.Default.MutexTimeout)))
{
this.SetError(503, "Service overloaded.");
return;
}
else
{
releaseMutex = true;
break;
}
}
catch (AbandonedMutexException)
{
try
{
mutex.ReleaseMutex();
}
catch
{
}
try
{
mutex.Close();
}
catch
{
}
mutex = CreateMutex();
}
}
Stopwatch stopwatch = Stopwatch.StartNew();
LicenseLease licenseLease = new LeaseService(true).GetLicenseLease(db, productCode, buildDate, machine, userName, context.User.Identity.Name, VirtualDateTime.UtcNow, errors);
if (licenseLease != null)
{
db.SubmitChanges();
string serializedLease = licenseLease.Serialize();
context.Response.Write(serializedLease);
}
else
{
this.SetError(403, "No license with free capacity. " + string.Join(" ", this.errors.Values));
}
if (stopwatch.ElapsedMilliseconds > 1000)
{
context.Trace.Warn(string.Format("Request served in {0}", stopwatch.Elapsed));
}
}
finally
{
if (releaseMutex)
{
try
{
mutex.ReleaseMutex();
}
catch
{
}
}
}
}
}
public void ProcessRequest(HttpContext context)
{
this.context = context;
using (Database db = new Database())
{
// Parse requested product code.
string productCode = context.Request.QueryString["product"];
if (string.IsNullOrEmpty(productCode))
{
this.SetError(400, "Missing query string argument: product.");
return;
}
// Parse version.
string versionString = context.Request.QueryString["version"];
Version version;
if (string.IsNullOrEmpty(versionString))
{
// Versions < 5.0 do not include version in the request.
version = new Version(4, 9, 9);
}
else
{
if (!Version.TryParse(versionString, out version))
{
this.SetError(400, "Cannot parse the argument: version.");
return;
}
}
// Parse build date.
string buildDateString = context.Request.QueryString["buildDate"];
DateTime?buildDate = null;
if (!string.IsNullOrEmpty(buildDateString))
{
DateTime buildDateNotNull;
if (
!DateTime.TryParse(buildDateString, CultureInfo.InvariantCulture, DateTimeStyles.RoundtripKind,
out buildDateNotNull))
{
this.SetError(400, "Cannot parse the argument: buildDate.");
return;
}
buildDate = buildDateNotNull;
}
// Parse machine name.
string machine = context.Request.QueryString["machine"];
if (string.IsNullOrEmpty(machine))
{
this.SetError(400, "Missing query string argument: machine.");
return;
}
machine = machine.ToLowerInvariant();
// Parse user name.
string userName = context.Request.QueryString["user"];
if (string.IsNullOrEmpty(userName))
{
this.SetError(400, "Missing query string argument: user.");
return;
}
userName = userName.ToLowerInvariant();
bool releaseMutex = false;
try
{
while (true)
{
try
{
if (!mutex.WaitOne(TimeSpan.FromSeconds(Settings.Default.MutexTimeout)))
{
this.SetError(503, "Service overloaded.");
return;
}
else
{
releaseMutex = true;
break;
}
}
catch (AbandonedMutexException)
{
try
{
mutex.ReleaseMutex();
}
catch
{
}
try
{
mutex.Close();
}
catch
{
}
mutex = CreateMutex();
}
}
Stopwatch stopwatch = Stopwatch.StartNew();
LicenseLease licenseLease = new LeaseService(true).GetLicenseLease(db, productCode, version, buildDate, machine, userName, context.User.Identity.Name, VirtualDateTime.UtcNow, errors);
if (licenseLease != null)
{
db.SubmitChanges();
string serializedLease = licenseLease.Serialize();
context.Response.Write(serializedLease);
}
else
{
this.SetError(403, "No license with free capacity. " + string.Join(" ", this.errors.Values));
}
if (stopwatch.ElapsedMilliseconds > 1000)
{
context.Trace.Warn(string.Format("Request served in {0}", stopwatch.Elapsed));
}
}
finally
{
if (releaseMutex)
{
try
{
mutex.ReleaseMutex();
}
catch
{
}
}
}
}
}
