/// <summary>
/// Gets the session name.
/// </summary>
public override string GetSessionName(IHttpPhpContext webctx)
{
// TODO: SessionOptions.CookieName
// var config = ((Context)webctx).GetService<IConfigureOptions<Microsoft.AspNetCore.Builder.SessionOptions>>();
return(SessionDefaults.CookieName);
}
public override bool Persist(IHttpPhpContext webctx, PhpArray session)
{
var httpContext = GetHttpContext(webctx);
var state = httpContext.Session;
//if (state.Mode == SessionStateMode.InProc)
//{
// // removes all items (some could be changed or removed in PHP):
// // TODO: some session variables could be added in ASP.NET application
// state.Clear();
// // populates session collection from variables:
// var enumerator = session.GetFastEnumerator();
// while (enumerator.MoveNext())
// {
// // skips resources:
// if (!(enumerator.CurrentValue.Object is PhpResource))
// {
// state.Add(enumerator.CurrentKey.ToString(), enumerator.CurrentValue.ToClr());
// }
// }
//}
//else
{
// if the session is maintained out-of-process, serialize the entire $_SESSION autoglobal
// add the serialized $_SESSION to ASP.NET session:
state[PhpNetSessionVars] = Serializer.Serialize((Context)webctx, (PhpValue)session, default(RuntimeTypeHandle)).ToBytes((Context)webctx);
}
//
return(true);
}
public override string GetSessionId(IHttpPhpContext webctx)
{
if (_lazyid == null)
{
// obtain the ID from cookies:
var sessid = ((Context)webctx).Cookie[GetSessionName(webctx)];
if (Operators.IsEmpty(sessid))
{
_isnewsession = true;
if (_handler is SessionIdInterface idinterface)
{
_lazyid = idinterface.create_sid();
}
else
{
_lazyid = session_create_id();
}
webctx.AddCookie(GetSessionName(webctx), _lazyid, null); // TODO: lifespan
}
else
{
_isnewsession = false;
_lazyid = sessid.ToStringOrThrow((Context)webctx);
}
}
Debug.Assert(_lazyid != null);
return(_lazyid);
}
/// <summary>
/// Initiates the session.
/// </summary>
public override bool StartSession(Context ctx, IHttpPhpContext webctx)
{
if (base.StartSession(ctx, webctx))
{
var httpContext = GetHttpContext(webctx);
var session = httpContext.Session;
// override HttpSessionState._container : IHttpSessionState
var container = session.GetContainer();
if (container != null)
{
if (container is PhpSessionStateContainer)
{
// unexpected; session already bound
throw new InvalidOperationException("Session was not closed properly.");
}
// overwrite IHttpSessionState
session.SetContainer(new PhpSessionStateContainer(container, ctx.Session));
}
else
{
// cannot resolve the IHttpSessionState container
}
//
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// Closes the session and either persists the session data or abandons the session.
/// </summary>
public virtual void CloseSession(Context ctx, IHttpPhpContext webctx, bool abandon)
{
if (webctx.SessionState != PhpSessionState.Started)
{
return;
}
webctx.SessionState = PhpSessionState.InProgress;
//
try
{
if (!abandon)
{
Persist(webctx, ctx.Session ?? PhpArray.Empty);
}
else
{
Abandon(webctx);
}
}
finally
{
webctx.SessionState = PhpSessionState.Closed;
}
}
/// <summary>
/// Initiates the session.
/// </summary>
public override bool StartSession(Context ctx, IHttpPhpContext webctx)
{
if (base.StartSession(ctx, webctx))
{
//var httpContext = GetHttpContext(webctx);
//var session = httpContext.Session;
//// override HttpSessionState._container : IHttpSessionState
//var oldcontainer = session.GetContainer();
//if (oldcontainer is SharedSession)
//{
// // unexpected; session already bound
//}
//else if (oldcontainer != null)
//{
// // overwrite IHttpSessionState
// session.SetContainer(new SharedSession(oldcontainer, ctx.Session));
//}
//
return(true);
}
else
{
return(false);
}
}
public override string GetSessionId(IHttpPhpContext webctx)
{
if (_lazyid == null)
{
// obtain the ID from cookies:
var sessid = ((Context)webctx).Cookie[GetSessionName(webctx)];
if (Operators.IsEmpty(sessid))
{
_isnewsession = true;
if (_handler is SessionHandler legacyhandler)
{
_lazyid = legacyhandler.create_sid();
}
else
{
_lazyid = session_create_id();
}
}
else
{
_isnewsession = false;
_lazyid = sessid.ToStringOrThrow((Context)webctx);
}
}
Debug.Assert(_lazyid != null);
return(_lazyid);
}
public override PhpArray Load(IHttpPhpContext webctx)
{
// 1. gc
if (GarbageCollectionCheck())
{
_handler.gc(_gc_maxlifetime);
}
// 2. open
if (!_handler.open(System.IO.Path.GetTempPath(), GetSessionName(webctx)))
{
return(null);
}
// 3. read
var str = _handler.read(GetSessionId(webctx));
if (str.IsEmpty)
{
return(null);
}
var handler = GetSerializeHandler((Context)webctx);
return(handler.Deserialize((Context)webctx, str, default(RuntimeTypeHandle)).AsArray());
}
public override bool Persist(IHttpPhpContext webctx, PhpArray session)
{
var ctx = (Context)webctx;
var httpContext = GetHttpContext(webctx);
var state = httpContext.Session;
// at this point, all the session items are stored in $_SESSION already
// store non-PHP objects into ASP.NET session state, serialize the rest as PHP array
PhpArray sessionvars = null;
if (state.Mode == SessionStateMode.InProc)
{
// removes all items (some could be changed or removed in PHP):
state.Clear();
// populates session collection from variables:
var enumerator = session.GetFastEnumerator();
while (enumerator.MoveNext())
{
var value = enumerator.CurrentValue.GetValue(); // dereferenced value
// skips resources
if (value.IsResource)
{
continue;
}
if (value.IsObject && value.Object.GetPhpTypeInfo().IsPhpType)
{
// PHP objects will be serialized using PHP serializer
if (sessionvars == null)
{
sessionvars = new PhpArray(session.Count);
}
sessionvars[enumerator.CurrentKey] = value;
}
else
{
state[enumerator.CurrentKey.ToString()] = value.ToClr();
}
}
}
else
{
// If the session is maintained out-of-process,
// serialize the entire $_SESSION autoglobal as it is.
sessionvars = session;
}
// Add the serialized $_SESSION to ASP.NET session.
// Even in case this array is empty, this keeps the ASP.NET session state alive.
state[PhpSessionVars] = sessionvars != null && sessionvars.Count != 0
? Serializer.Serialize(ctx, sessionvars, default(RuntimeTypeHandle)).ToBytes(ctx)
: Array.Empty <byte>();
//
return(true);
}
public override string GetSessionName(IHttpPhpContext webctx)
{
if (_lazyname == null)
{
_lazyname = ((Context)webctx).Configuration.GetSessionConfiguration().SessionName ?? SessionConfiguration.DefaultSessionName;
}
return(_lazyname);
}
public override void Abandon(IHttpPhpContext webctx)
{
if (!_isnewsession)
{
webctx.AddCookie(GetSessionName(webctx), string.Empty, DateTimeOffset.UtcNow);
}
// destroy
_handler.destroy(GetSessionId(webctx));
}
public override PhpArray Load(IHttpPhpContext webctx)
{
var ctx = (Context)webctx;
var httpContext = GetHttpContext(webctx);
EnsureSessionId(httpContext);
var session = httpContext.Session;
var underlyingstate = session.GetContainer(); // use the underlying IHttpSessionState because Session will be changed to our handler then
// session contains both ASP.NET session and PHP session variables
PhpArray result = null;
// serialized $_SESSION array
if (session[PhpSessionVars] is byte[] data && data.Length != 0)
{
if (Serializer.TryDeserialize(ctx, data, out var value))
{
result = value.ArrayOrNull();
}
}
foreach (string name in session)
{
if (name == PhpSessionVars)
{
continue;
}
if (result == null)
{
result = new PhpArray(session.Count);
}
if (underlyingstate != null)
{
result[name] = new SessionValue(underlyingstate, name);
}
else
{
// in case we won't get IHttpSessionState:
var value = PhpValue.FromClr(session[name]);
//if (value.IsObject)
//{
// // NOTE: values that are bound to specific Context are stored using PHP serialization into PhpSessionVars array
// // CONSIDER: what if value has a reference to a Context - clone the value?
//}
result[name] = value;
}
}
return(result ?? PhpArray.NewEmpty());
}
public override bool SetSessionName(IHttpPhpContext webctx, string name)
{
if (webctx.SessionState != PhpSessionState.Closed)
{
// session name cannot be changed after the session started
throw new InvalidOperationException();
}
_lazyname = name;
return(true);
}
public override PhpArray Load(IHttpPhpContext webctx)
{
var ctx = (Context)webctx;
var httpContext = GetHttpContext(webctx);
EnsureSessionId(httpContext);
var session = httpContext.Session;
// session contains both ASP.NET session and PHP session variables
PhpArray result = null;
// serialized $_SESSION array
if (session[PhpSessionVars] is byte[] data)
{
if (Serializer.TryDeserialize(ctx, data, out var value))
{
result = value.ArrayOrNull();
}
}
// .NET session items
if (session.Mode == SessionStateMode.InProc)
{
foreach (string name in session)
{
if (name == PhpSessionVars)
{
continue;
}
if (result == null)
{
result = new PhpArray(session.Count);
}
var value = PhpValue.FromClr(session[name]);
//if (value.IsObject)
//{
// // CONSIDER: what if value has reference to a different Context - change it? clone the value? do not store it into the session in the first place?
//}
result[name] = value;
}
}
else
{
// TODO: deserialize .NET session variables
// CONSIDER: isn't it too much of overhead?
}
return(result ?? PhpArray.NewEmpty());
}
/// <summary>
/// Called when sessions are started.
/// </summary>
public override PhpArray Load(IHttpPhpContext webctx)
{
var result = new PhpArray();
var ctx = (RequestContextCore)webctx;
var isession = ctx.HttpContext.Session; // throws if session is not configured
if (isession.IsAvailable)
{
foreach (var key in isession.Keys)
{
if (isession.TryGetValue(key, out byte[] bytes))
public override bool Persist(IHttpPhpContext webctx, PhpArray session)
{
//
var handler = GetSerializeHandler((Context)webctx);
//
return
// 1. write
(_handler.write(GetSessionId(webctx), handler.Serialize((Context)webctx, (PhpValue)session, default(RuntimeTypeHandle))) &&
// 2. close
_handler.close());
}
public override bool SetSessionId(IHttpPhpContext webctx, string newid)
{
if (webctx.HeadersSent)
{
return(false);
}
//
_lazyid = newid;
_isnewsession = true;
return(true);
}
/// <summary>
/// Close the session (either abandon or persist).
/// </summary>
public override void CloseSession(Context ctx, IHttpPhpContext webctx, bool abandon)
{
// set the original IHttpSessionState back
var session = GetHttpContext(webctx).Session;
if (session.GetContainer() is PhpSessionStateContainer shared)
{
session.SetContainer(shared.UnderlayingContainer);
}
// persist $_SESSION
base.CloseSession(ctx, webctx, abandon);
}
/// <summary>
/// Close the session (either abandon or persist).
/// </summary>
public override void CloseSession(Context ctx, IHttpPhpContext webctx, bool abandon)
{
base.CloseSession(ctx, webctx, abandon);
// set the original IHttpSessionState back
var session = GetHttpContext(webctx).Session;
var container = session.GetContainer();
if (container is SharedSession shared && ReferenceEquals(shared.PhpSession, ctx.Session))
{
session.SetContainer(shared.UnderlayingContainer);
}
}
public override void Abandon(IHttpPhpContext webctx)
{
// abandon asp.net core session
var isession = GeHttpContext(webctx).Session;
if (isession != null)
{
isession.Clear();
isession.CommitAsync()
.GetAwaiter()
.GetResult();
}
}
public override string GetSessionId(IHttpPhpContext webctx)
{
var isession = GeHttpContext(webctx).Session;
if (isession != null)
{
return(isession.Id);
}
else
{
return(string.Empty);
}
}
/// <summary>
/// Checks if sessions were configured.
/// </summary>
public override bool IsEnabled(IHttpPhpContext webctx)
{
var httpctx = GeHttpContext(webctx);
try
{
var session = httpctx.Session; // throws if session is not configured
return(session != null);
}
catch
{
return(false);
}
}
/// <summary>
/// Checks if sessions were configured.
/// </summary>
public override bool IsEnabled(IHttpPhpContext webctx)
{
var ctx = (RequestContextCore)webctx;
try
{
var session = ctx.HttpContext.Session; // throws if session is not configured
return(session != null);
}
catch
{
return(false);
}
}
public override bool Persist(IHttpPhpContext webctx, PhpArray session)
{
webctx.AddCookie(GetSessionName(webctx), _lazyid, null); // TODO: lifespan
//
var handler = GetSerializeHandler((Context)webctx);
//
return
// 1. write
(_handler.write(GetSessionId(webctx), handler.Serialize((Context)webctx, (PhpValue)session, default(RuntimeTypeHandle))) &&
// 2. close
_handler.close());
}
/// <summary>
/// Discard session array changes and finish session.
/// </summary>
public virtual void AbortSession(Context ctx, IHttpPhpContext webctx)
{
if (webctx.SessionState != PhpSessionState.Started)
{
return;
}
webctx.SessionState = PhpSessionState.InProgress;
try
{
// TODO: clear $_SESSION ?
}
finally
{
webctx.SessionState = PhpSessionState.Closed;
}
}
public override PhpArray Load(IHttpPhpContext webctx)
{
var ctx = (Context)webctx;
var httpContext = GetHttpContext(webctx);
EnsureSessionId(httpContext);
//// removes dummy item keeping the session alive:
//if (httpContext.Session[AspNetSessionHandler.PhpNetSessionVars] as string == AspNetSessionHandler.DummySessionItem)
//{
// httpContext.Session.Remove(AspNetSessionHandler.PhpNetSessionVars);
//}
//
var state = httpContext.Session;
PhpArray result = null;
//if (state.Mode == SessionStateMode.InProc)
//{
// result = new PhpArray();
// foreach (string name in state)
// {
// var value = PhpValue.FromClr(state[name]);
// // TODO: rebind value.Context
// result[name] = value;
// }
//}
//else
{
if (state[PhpNetSessionVars] is byte[] data)
{
if (Serializer.TryDeserialize(ctx, data, out var value))
{
result = value.ArrayOrNull();
}
}
// TODO: deserialize .NET session variables
}
return(result ?? PhpArray.NewEmpty());
}
/// <summary>
/// Starts the session if it is not started yet.
/// </summary>
public virtual bool StartSession(Context ctx, IHttpPhpContext webctx)
{
// checks and changes session state:
if (webctx.SessionState != PhpSessionState.Closed)
{
return(false);
}
webctx.SessionState = PhpSessionState.InProgress;
try
{
// ensures session and reads session data
var session_array = this.Load(webctx) ?? PhpArray.NewEmpty();
// sets the auto-global variable (the previous content of $_SESSION array is discarded):
ctx.Session = session_array;
ctx.Globals[SESSION_Variable] = session_array;
//if (ctx.Configuration.Core.RegisterGlobals)
//{
// // ctx.RegisterSessionGlobals();
//}
// adds/updates a SID constant:
if (!ctx.DefineConstant(SID_Constant, GetSessionId(webctx), true))
{
throw new InvalidOperationException("SID already set."); // TODO: allow overwriting
}
}
catch
{
webctx.SessionState = PhpSessionState.Closed;
return(false);
}
finally
{
//
webctx.SessionState = PhpSessionState.Started;
}
//
return(true);
}
public override PhpArray Load(IHttpPhpContext webctx)
{
var httpContext = GetHttpContext(webctx);
EnsureSessionId(httpContext);
//// removes dummy item keeping the session alive:
//if (httpContext.Session[AspNetSessionHandler.PhpNetSessionVars] as string == AspNetSessionHandler.DummySessionItem)
//{
// httpContext.Session.Remove(AspNetSessionHandler.PhpNetSessionVars);
//}
//
var state = httpContext.Session;
PhpArray result = null;
//if (state.Mode == SessionStateMode.InProc)
//{
// result = new PhpArray();
// foreach (string name in state)
// {
// var value = PhpValue.FromClr(state[name]);
// // TODO: rebind value.Context
// result[name] = value;
// }
//}
//else
{
var data = state[PhpNetSessionVars] as byte[];
if (data != null)
{
result = Serializer.Deserialize((Context)webctx, new PhpString(data), default(RuntimeTypeHandle)).ArrayOrNull();
}
}
return(result ?? PhpArray.NewEmpty());
}
/// <summary> /// Gets the session ID (SID constant). /// </summary> public abstract string GetSessionId(IHttpPhpContext webctx);
/// <summary> /// Frees the session. /// Next time a new (empty) sesison should be created. /// </summary> /// <param name="webctx">Current web context.</param> public abstract void Abandon(IHttpPhpContext webctx);
