ApplicationServiceHelper.cs source code in C# .NET

                        Code:
                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Extensions / ApplicationServices / ApplicationServiceHelper.cs / 1305376 / ApplicationServiceHelper.cs
                        
                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

namespace System.Web.ApplicationServices { 
    using System; 
    using System.Collections.Generic;
    using System.Collections.ObjectModel; 
    using System.Configuration;
    using System.Globalization;
    using System.Security.Principal;
    using System.Threading; 
    using System.Web;
    using System.Web.Configuration; 
    using System.Web.Profile; 
    using System.Web.Resources;
 
    internal static class ApplicationServiceHelper {
        // store profile properties allowed for get/set over the webservice
        // a dictionary is used for perf, as .ContainsKey is called often
        // These dictionaries are used for concurrent reads, but all writes are done on a new instance one per thread 
        // and isn't available for reading from other threads until the operation is complete.
        // So it is safe to use Dictionary in this case. 
        // We use Dictionary instead of Dictionary to avoid violating 
        // FxCop Rule CA908: UseApprovedGenericsForPrecompiledAssemblies.
        private static Dictionary _profileAllowedGet; 
        private static Dictionary _profileAllowedSet;
        private static bool? _profileServiceEnabled;
        private static bool? _roleServiceEnabled;
        private static bool? _authServiceEnabled; 
        private static bool _authRequiresSSL;
 
        internal static Dictionary ProfileAllowedGet { 
            get {
                EnsureProfileConfigLoaded(); 
                return _profileAllowedGet;
            }
        }
 
        internal static Dictionary ProfileAllowedSet {
            get { 
                EnsureProfileConfigLoaded(); 
                return _profileAllowedSet;
            } 
        }

        internal static bool AuthenticationServiceEnabled {
            get { 
                EnsureAuthenticationConfigLoaded();
                return _authServiceEnabled.Value; 
            } 
        }
 
        internal static bool ProfileServiceEnabled {
            get {
                EnsureProfileConfigLoaded();
                return _profileServiceEnabled.Value; 
            }
        } 
 
        internal static bool RoleServiceEnabled {
            get { 
                // Get the flag on demand from config
                if (_roleServiceEnabled == null) {
                    ScriptingRoleServiceSection roleServiceSection = ScriptingRoleServiceSection.GetConfigurationSection();
                    _roleServiceEnabled = (roleServiceSection != null) && roleServiceSection.Enabled; 
                }
 
                return _roleServiceEnabled.Value; 
            }
        } 

        internal static void EnsureAuthenticated(HttpContext context) {
            //
 
            bool authenticated = false;
            IPrincipal user = GetCurrentUser(context); 
 
            if (user != null) {
                IIdentity userIdentity = user.Identity; 
                if (userIdentity != null) {
                    authenticated = userIdentity.IsAuthenticated;
                }
            } 

            if (!authenticated) { 
                throw new HttpException(AtlasWeb.UserIsNotAuthenticated); 
            }
        } 

        private static void EnsureAuthenticationConfigLoaded() {
            // DevDiv 52730: drop the unnecessary double checked lock
            if (_authServiceEnabled == null) { 
                ScriptingAuthenticationServiceSection authServicesSection = ScriptingAuthenticationServiceSection.GetConfigurationSection();
 
                if (authServicesSection != null) { 
                    _authRequiresSSL = authServicesSection.RequireSSL;
                    _authServiceEnabled = authServicesSection.Enabled; 
                }
                else {
                    _authServiceEnabled = false;
                } 
            }
        } 
 
        // Fail if the Authentication Service is disabled or this is a non-ssl request and ssl is required
        internal static void EnsureAuthenticationServiceEnabled(HttpContext context, bool enforceSSL) { 
            if (!AuthenticationServiceEnabled) {
                throw new InvalidOperationException(string.Format(CultureInfo.CurrentCulture, AtlasWeb.AppService_Disabled, "AuthenticationService"));
            }
 
            if (enforceSSL && _authRequiresSSL && !context.Request.IsSecureConnection) {
                throw new HttpException(403, AtlasWeb.AppService_RequiredSSL); 
            } 
        }
 
        private static void EnsureProfileConfigLoaded() {
            if (_profileServiceEnabled == null) {
#pragma warning disable 0436
                ScriptingProfileServiceSection profileServiceSection = ScriptingProfileServiceSection.GetConfigurationSection(); 
#pragma warning restore 0436
                Dictionary readAccessProperties = null; 
                Dictionary writeAccessProperties = null; 

                bool enabled = (profileServiceSection != null) && profileServiceSection.Enabled; 

                if (enabled) {
                    string[] enabledForRead = profileServiceSection.ReadAccessProperties;
 
                    if (enabledForRead != null && enabledForRead.Length > 0) {
                        readAccessProperties = new Dictionary(StringComparer.OrdinalIgnoreCase); 
                        ParseProfilePropertyList(readAccessProperties, enabledForRead); 
                    }
 
                    string[] enabledForWriting = profileServiceSection.WriteAccessProperties;

                    if (enabledForWriting != null && enabledForWriting.Length > 0) {
                        writeAccessProperties = new Dictionary(StringComparer.OrdinalIgnoreCase); 
                        ParseProfilePropertyList(writeAccessProperties, enabledForWriting);
                    } 
                } 

                _profileAllowedGet = readAccessProperties; 
                _profileAllowedSet = writeAccessProperties;
                _profileServiceEnabled = enabled;
            }
        } 

        // Fail if the Profile Service is disabled 
        internal static void EnsureProfileServiceEnabled() { 
            if (!ProfileServiceEnabled) {
                throw new InvalidOperationException(string.Format(CultureInfo.CurrentCulture, AtlasWeb.AppService_Disabled, "ProfileService")); 
            }
        }

        // Fail if the Role Service is disabled 
        internal static void EnsureRoleServiceEnabled() {
            if (!RoleServiceEnabled) { 
                throw new InvalidOperationException(string.Format(CultureInfo.CurrentCulture, AtlasWeb.AppService_Disabled, "RoleService")); 
            }
        } 

        internal static IPrincipal GetCurrentUser(HttpContext context) {
            return (context != null) ? context.User : Thread.CurrentPrincipal;
        } 

        internal static Collection GetProfilePropertiesMetadata() { 
            EnsureProfileConfigLoaded(); 

            if (ProfileBase.Properties == null) { 
                return new Collection();
            }

            Collection metadatas = new Collection(); 

            foreach (SettingsProperty property in ProfileBase.Properties) { 
                string propertyName = property.Name; 

                // only return property metadata for properties that are allowed for Reading and/or Writing 
                bool allowedReadOrWrite = _profileAllowedGet.ContainsKey(propertyName) || _profileAllowedSet.ContainsKey(propertyName);
                if (!allowedReadOrWrite) {
                    continue;
                } 

                string defaultValue = null; 
 
                if (property.DefaultValue != null) {
                    if (property.DefaultValue is string) { 
                        defaultValue = (string)property.DefaultValue;
                    }
                    else {
                        defaultValue = Convert.ToBase64String((byte[])property.DefaultValue); 
                    }
                } 
 
                ProfilePropertyMetadata metadata = new ProfilePropertyMetadata();
                metadata.PropertyName = propertyName; 
                metadata.DefaultValue = defaultValue;
                metadata.TypeName = property.PropertyType.AssemblyQualifiedName;
                metadata.AllowAnonymousAccess = (bool)property.Attributes["AllowAnonymous"];
                metadata.SerializeAs = (int)property.SerializeAs; 
                metadata.IsReadOnly = property.IsReadOnly;
 
                metadatas.Add(metadata); 
            }
 
            return metadatas;
        }

        internal static string GetUserName(IPrincipal user) { 
            if (user == null || user.Identity == null) {
                return String.Empty; 
            } 
            else {
                return user.Identity.Name; 
            }
        }

        private static void ParseProfilePropertyList(Dictionary dictionary, string[] properties) { 
            foreach (string property in properties) {
                string trimmed = property == null ? String.Empty : property.Trim(); 
                if (property.Length > 0) { 
                    dictionary[trimmed] = true;
                } 
            }
        }

    } 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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ApplicationServiceHelper.cs source code in C# .NET

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