public void Perform(WorkContext context)
{
var from = context.Request.QueryString["from"].AsInt(1);
var to = context.Request.QueryString["to"].AsInt(10);
if (to-from>1000) to = from + 1000;//limit so no infinite loop possible
context.Response.ContentType = ContentType.TEXT;
for(var i=from;i<=to;i++)
context.Response.WriteLine("{0} times and counting".Args(i));
}
protected override MethodInfo FindMatchingAction(WorkContext work, string action, out object[] args)
{
if (action.IndexOf('-') > 3) // pattern: xxx-...
{
try
{
var el = new ELink(action);
args = new object[] {el.ID};
return mi_Resolve;
}
catch
{
}
}
args = null;
return null;
}
protected override void DoFilterWork(WorkContext work, IList<WorkFilter> filters, int thisFilterIndex)
{
foreach (var match in m_Matches.OrderedValues)
{
var matched = match.Make(work);
if (matched == null)
continue;
var newAction = matched[VAR_NEW_ACTION].AsString();
if (newAction.IsNullOrWhiteSpace())
continue;
var oldUrl = work.Request.Url.ToString();
var newUrl = changeMvcUrlAction(oldUrl, newAction);
if (newUrl == null)
continue;
work.Response.RedirectAndAbort(newUrl);
}
this.InvokeNextWorker(work, filters, thisFilterIndex);
}
/// <summary>
/// Translates the named content into desired language trying to infer language from work context/locality/session.
/// The search is first done in this portal then in inherited portals.
/// Returns an empty string if no translation is possible
/// </summary>
public virtual string TranslateContent(string contentKey, string isoLang = null, WorkContext work = null)
{
if (isoLang.IsNullOrWhiteSpace())
isoLang = GetLanguageISOCode(work);
string result;
var portal = this;
while(portal!=null)
{
var content = portal.m_LocalizableContent;
if (content.TryGetValue(contentKey+"_"+isoLang, out result)) return result;
if (!isoLang.EqualsOrdIgnoreCase(portal.DefaultLanguageISOCode))
{
if (content.TryGetValue(contentKey+"_"+portal.DefaultLanguageISOCode, out result)) return result;
}
if (content.TryGetValue(contentKey, out result)) return result;
portal = portal.Parent;
}
return string.Empty;
}
protected virtual bool Check_UserHosts(WorkContext work)
{
if (m_UserHosts==null) return true;
return m_UserHosts.Any(uh=> work.Request.UserHostName.IndexOf(uh, StringComparison.InvariantCultureIgnoreCase)>=0);
}
protected virtual bool Check_Ports(WorkContext work)
{
if (m_Ports==null) return true;
return m_Ports.Any(p=>p.Equals(work.Request.Url.Port.ToString(), StringComparison.Ordinal));
}
protected virtual bool Check_Methods(WorkContext work)
{
if (m_Methods==null) return true;
return m_Methods.Any(m => m.Equals(work.Request.HttpMethod, StringComparison.OrdinalIgnoreCase));
}
protected virtual bool Check_IsLocal(WorkContext work)
{
if (!m_IsLocal.HasValue) return true;
return work.Request.IsLocal == m_IsLocal;
}
/// <summary>
/// Translates the named content into desired language trying to infer language from work context/locality/session.
/// The search is first done in this portal then in inherited portals.
/// Returns an empty string if no translation is possible
/// </summary>
public virtual string TranslateContent(string contentKey, string isoLang = null, WorkContext work = null)
{
if (isoLang.IsNullOrWhiteSpace())
{
isoLang = GetLanguageISOCode(work);
}
string result;
var portal = this;
while (portal != null)
{
var content = portal.m_LocalizableContent;
if (content.TryGetValue(contentKey + "_" + isoLang, out result))
{
return(result);
}
if (!isoLang.EqualsOrdIgnoreCase(portal.DefaultLanguageISOCode))
{
if (content.TryGetValue(contentKey + "_" + portal.DefaultLanguageISOCode, out result))
{
return(result);
}
}
if (content.TryGetValue(contentKey, out result))
{
return(result);
}
portal = portal.Parent;
}
return(string.Empty);
}
/// <summary>
/// Tries to determine session/work context lang and returns it or DefaultLanguageISOCode
/// </summary>
public virtual string GetLanguageISOCode(WorkContext work = null)
{
string lang = null;
if (work==null)
work = ExecutionContext.Request as WorkContext;
if (work==null)
{
var session = ExecutionContext.Session;
if (session!=null)
lang = session.LanguageISOCode;
}
else
{
// 9/13/2016 OGee session can be exists but not acquired
work.NeedsSession(onlyExisting: true);
var session = work.Session;
if (session!=null)
lang = session.LanguageISOCode;
if (lang.IsNullOrWhiteSpace() && work.GeoEntity!=null && work.GeoEntity.Location.HasValue)
{
var country = work.GeoEntity.CountryISOName;
lang = CountryISOCodeToLanguageISOCode(country);
}
}
return lang.IsNullOrWhiteSpace() ? this.DefaultLanguageISOCode : lang;
}
internal Response(WorkContext work, HttpListenerResponse netResponse)
{
Work = work;
m_NetResponse = netResponse;
m_NetResponse.Headers[HttpResponseHeader.Server] = Work.Server.Name;
}
internal Response(WorkContext work, HttpListenerResponse netResponse)
{
Work = work;
m_NetResponse = netResponse;
m_NetResponse.Headers[HttpResponseHeader.Server] = Work.Server.Name;
}
/// <summary> /// Override to handle the work - i.e. render a template page or call MVC controller method. /// Note: This method is re-entrant by multiple threads /// </summary> protected abstract void DoHandleWork(WorkContext work);
/// <summary>
/// Handles processing exception - this implementation uses server-wide behavior.
/// All parameters except ERROR can be null - which indicates error that happened during WorkContext dispose
/// </summary>
public virtual void HandleException(WorkContext work, WorkFilter filter, WorkHandler handler, Exception error)
{
ComponentDirector.HandleException(work, filter, handler, error);
}
/// <summary>
/// Finds the most appropriate work handler to do the work.
/// The default implementation finds first handler with matching URI pattern or null
/// </summary>
public virtual WorkHandler GetWorkHandler(WorkContext work)
{
return(m_Handlers.OrderedValues.FirstOrDefault(handler => handler.MakeMatch(work)));
}
/// <summary>
/// Handles the work - first involes all filters then calls HandleWork to do actual processing
/// Note: This method is re-entrant by multiple threads
/// </summary>
public void FilterAndHandleWork(WorkContext work)
{
var filters = m_Filters.OrderedValues.ToList().AsReadOnly();//captures context
var filter = filters.FirstOrDefault();
if (filter!=null)
filter.FilterWork(work, filters, 0);
else
HandleWork(work);
}
/// <summary>
/// Returns true when the particular work request matches the pattern match of this handler.
/// Also sets the WorkHandler's MatchedVars property filled with matched values
/// </summary>
public virtual bool MakeMatch(WorkContext work)
{
foreach(var match in m_Matches.OrderedValues)
{
var matched = match.Make(work);
if (matched!=null)
{
work.___SetWorkMatch(match, matched);
return true;
}
}
return false;
}
/// <summary>
/// Override to filter the work - i.e. extract some security name from cookies and check access, turn exception in error page etc.
/// Note: This method is re-entrant by multiple threads
/// </summary>
/// <param name="work">Work context</param>
/// <param name="filters">
/// The filters that participated in a call.
/// Note the Dipatcher.Filters may yield different results as it may change with time, whereas this parameter captures all filters during the call start
/// </param>
/// <param name="thisFilterIndex">
/// The index of THIS filter in filters
/// </param>
public void FilterWork(WorkContext work, IList<WorkFilter> filters, int thisFilterIndex)
{
try
{
DoFilterWork(work, filters, thisFilterIndex);
}
catch(Exception error)
{
work.LastError = error;
throw new FilterPipelineException(this, error);
}
}
protected virtual bool Check_Hosts(WorkContext work)
{
if (m_Hosts==null) return true;
return m_Hosts.Any(h=>h.Equals(work.Request.Url.Host, StringComparison.OrdinalIgnoreCase));
}
/// <summary> /// Override to filter the work - i.e. extract some security name from cookies and check access, turn exception in error page etc. /// Note: This method is re-entrant by multiple threads. Do not forget to call InvokeNextWorker() to continue request processing, otherwise the work will /// not be handled (which may be a desired behavior) /// </summary> /// <param name="work">Work context</param> /// <param name="filters"> /// The filters that participated in a call. /// Note the Dipatcher.Filters may yield different results as it may change with time, whereas this parameter captures all filters during the call start /// </param> /// <param name="thisFilterIndex"> /// The index of THIS filter in filters /// </param> protected abstract void DoFilterWork(WorkContext work, IList<WorkFilter> filters, int thisFilterIndex);
protected virtual bool Check_IsSocialNetBot(WorkContext work)
{
if (!m_IsSocialNetBot.HasValue) return true;
var isBot = Web.Social.SocialNetwork.IsAnySocialNetBotUserAgent(work.Request.UserAgent);
return m_IsSocialNetBot == isBot;
}
/// <summary>
/// Invokes next processing body be it the next filter or handler (when all filters are iterated through).
/// The filter implementors must call this method to pass WorkContext processing along the line.
/// Does nothing if work is Aborted or Handled
/// </summary>
protected void InvokeNextWorker(WorkContext work, IList<WorkFilter> filters, int thisFilterIndex)
{
if (work==null) return;
if (work.Aborted || work.Handled) return;
var idxNext = thisFilterIndex+1;
if (idxNext<filters.Count)
{
filters[idxNext].FilterWork(work, filters, idxNext);
}
else
{
WorkHandler handler = m_Handler;
if (handler!=null)//if we are under Handler already then call the handler directly
handler.HandleWork(work);
else //if we are under dispatcher then call dipatcher to locate and invoke the matching handler
m_Dispatcher.InvokeHandler(work, out handler);
}
}
protected virtual bool Check_Permissions(WorkContext work)
{
if (m_Permissions==null) return true;
var failed = m_Permissions.FirstOrDefault(prm => !prm.Check(work.Session));
return failed == null;
}
/// <summary>
/// Decides whether the specified WorkContext makes the match per this instance and if it does, returns the match variables.
/// Returns null if match was not made
/// </summary>
public virtual JSONDataMap Make(WorkContext work)
{
if (
!Check_Methods(work) ||
!Check_AcceptTypes(work) ||
!Check_ContentTypes(work) ||
!Check_IsLocal(work) ||
!Check_Hosts(work) ||
!Check_Ports(work) ||
!Check_Schemes(work) ||
!Check_UserAgents(work)||
!Check_UserHosts(work) ||
!Check_Permissions(work) ||
!Check_Cookies(work) ||
!Check_AbsentCookies(work) ||
!Check_IsSocialNetBot(work) ||
!Check_Headers(work) ||
!Check_ApiVersions(work)
) return null;
JSONDataMap result = null;
if (m_PathPattern!=null)
{
result = m_PathPattern.MatchURIPath(work.Request.Url);
if (result==null) return null;
}
if (m_NotPathPattern!=null)
{
if (m_NotPathPattern.MatchURIPath(work.Request.Url)!=null) return null;
}
if (!Check_VariablesAndGetValues(work, ref result)) return null;
return result ?? new JSONDataMap(false);
}
protected virtual bool Check_Schemes(WorkContext work)
{
if (m_Schemes==null) return true;
return m_Schemes.Any(s=>s.Equals(work.Request.Url.Scheme, StringComparison.OrdinalIgnoreCase));
}
protected virtual bool Check_AcceptTypes(WorkContext work)
{
if (m_AcceptJson)
{
if (!work.RequestedJSON) return false;
}
if (m_AcceptTypes==null) return true;
var atps = work.Request.AcceptTypes;
if (atps==null || atps.Length==0) return false;
var found = false;
foreach(var at in m_AcceptTypes)
if (atps.Any(t=>at.Equals(t, StringComparison.OrdinalIgnoreCase)))
{
found = true;
break;
}
return found;
}
protected virtual bool Check_VariablesAndGetValues(WorkContext work, ref JSONDataMap result)
{
if (m_Variables.Count==0) return true;
result = result ?? new JSONDataMap(false);
foreach(var cvar in m_Variables)
{
if (cvar.QueryName==Variable.QUERY_NAME_WC)
{
foreach(var qk in work.Request.QueryString.AllKeys)
if (qk.IsNotNullOrWhiteSpace())//20150528 DKh fixed: ?a=1&b
result[qk] = work.Request.QueryString[qk];
continue;
}
var qv = cvar.QueryName.IsNotNullOrWhiteSpace() ? work.Request.QueryString[cvar.QueryName] : string.Empty;
if (qv.IsNullOrWhiteSpace()) qv = cvar.Default ?? string.Empty;
result[cvar.Name] = qv;
if (cvar.MatchEquals.IsNotNullOrWhiteSpace())
if (!cvar.MatchEquals.Equals(qv, cvar.MatchCaseSensitive ? StringComparison.InvariantCulture : StringComparison.InvariantCultureIgnoreCase)) return false;
if (cvar.MatchContains.IsNotNullOrWhiteSpace())
if (qv.IndexOf(cvar.MatchContains, cvar.MatchCaseSensitive ? StringComparison.InvariantCulture : StringComparison.InvariantCultureIgnoreCase)<0) return false;
}
return true;
}
protected virtual bool Check_ApiVersions(WorkContext work)
{
if (!m_ApiMinVer.HasValue && !m_ApiMaxVer.HasValue) return true;
var hdr = work.Request.Headers[SysConsts.HEADER_API_VERSION];
if (hdr.IsNullOrWhiteSpace()) return false;
int v;
if (!Int32.TryParse(hdr, out v)) return false;
if (m_ApiMinVer.HasValue && m_ApiMinVer.Value>v) return false;
if (m_ApiMaxVer.HasValue && m_ApiMaxVer.Value<v) return false;
return true;
}
/// <summary>
/// Tries to determine session/work context lang and returns it or DefaultLanguageISOCode
/// </summary>
public virtual string GetLanguageISOCode(WorkContext work = null)
{
string lang = null;
if (work==null)
work = ExecutionContext.Request as WorkContext;
if (work==null)
{
var session = ExecutionContext.Session;
if (session!=null)
lang = session.LanguageISOCode;
}
else
{
var session = work.Session;
if (session!=null)
lang = session.LanguageISOCode;
if (lang.IsNullOrWhiteSpace() && work.GeoEntity!=null && work.GeoEntity.Location.HasValue)
{
var country = work.GeoEntity.Location.Value.CountryISOName.Value;
lang = CountryISOCodeToLanguageISOCode(country);
}
}
return lang.IsNullOrWhiteSpace() ? this.DefaultLanguageISOCode : lang;
}
protected virtual bool Check_ContentTypes(WorkContext work)
{
if (m_ContentTypes==null) return true;
var ct = work.Request.ContentType;
if (ct.IsNullOrWhiteSpace()) return false;
return m_ContentTypes.Any(t=>ct.Equals(t, StringComparison.OrdinalIgnoreCase));
}
/// <summary>
/// Handles processing exception by calling ErrorFilter.HandleException(work, error).
/// All parameters except ERROR can be null - which indicates error that happened during WorkContext dispose
/// </summary>
public virtual void HandleException(WorkContext work, WorkFilter filter, WorkHandler handler, Exception error)
{
try
{
if (m_InstrumentationEnabled) Interlocked.Increment(ref m_Stat_ServerHandleException);
//work may be null (when WorkContext is already disposed)
if (work!=null)
ErrorFilter.HandleException(work, error, m_ErrorShowDumpMatches, m_ErrorLogMatches);
else
Log(MessageType.Error,
StringConsts.SERVER_DEFAULT_ERROR_WC_NULL_ERROR + error.ToMessageWithType(),
"HandleException()",
error);
}
catch(Exception error2)
{
if (m_LogHandleExceptionErrors)
try
{
Log(MessageType.Error,
StringConsts.SERVER_DEFAULT_ERROR_HANDLER_ERROR + error2.ToMessageWithType(),
"HandleException.catch()",
error2,
pars: new
{
OriginalError = error.ToMessageWithType()
}.ToJSON()
);
}
catch{}
}
}
protected virtual bool Check_Cookies(WorkContext work)
{
if (m_Cookies==null) return true;
foreach(var pair in m_Cookies)
{
var cookie = work.Request.Cookies[pair.Name];
if (cookie==null) continue;
if (string.Equals( cookie.Value,
pair.Value,
StringComparison.InvariantCultureIgnoreCase)) return true;
}
return false;
}
/// <summary>
/// Handles the work - i.e. renders a template page or calls MVC controller method.
/// This method does not pass through handler's filters
/// Note: This method is re-entrant by multiple threads
/// </summary>
public void HandleWork(WorkContext work)
{
try
{
work.m_Handler = this;
DoHandleWork(work);
}
finally
{
work.m_Handled = true;
}
}
protected virtual bool Check_Headers(WorkContext work)
{
if (m_Headers==null) return true;
foreach(var pair in m_Headers)
if (string.Equals( work.Request.Headers[pair.Name],
pair.Value,
StringComparison.InvariantCultureIgnoreCase)) return true;
return false;
}
/// <summary> /// Override to handle the work - i.e. render a template page or call MVC controller method. /// Note: This method is re-entrant by multiple threads /// </summary> protected abstract void DoHandleWork(WorkContext work);
/// <summary> /// Override to filter the work - i.e. extract some security name from cookies and check access, turn exception in error page etc. /// Note: This method is re-entrant by multiple threads. Do not forget to call InvokeNextWorker() to continue request processing, otherwise the work will /// not be handled (which may be a desired behavior) /// </summary> /// <param name="work">Work context</param> /// <param name="filters"> /// The filters that participated in a call. /// Note the Dipatcher.Filters may yield different results as it may change with time, whereas this parameter captures all filters during the call start /// </param> /// <param name="thisFilterIndex"> /// The index of THIS filter in filters /// </param> protected abstract void DoFilterWork(WorkContext work, IList <WorkFilter> filters, int thisFilterIndex);
