using System.Collections.Generic; using System.Diagnostics; namespace System.Configuration { [DebuggerDisplay("SectionRecord {ConfigKey}")] internal class SectionRecord { private const int FlagLocked = 1; private const int FlagLockChildren = 2; private const int FlagRequirePermission = 8; private const int FlagLocationInputLockApplied = 16; private const int FlagIndirectLocationInputLockApplied = 32; private const int FlagChildrenLockWithoutFileInput = 64; private const int FlagAddUpdate = 65536; private static readonly object s_unevaluated = new object(); private SafeBitVector32 _flags; internal string ConfigKey { get; } internal bool Locked => _flags[1]; internal bool LockChildren => _flags[2]; internal bool LockChildrenWithoutFileInput { get { bool result = LockChildren; if (HasFileInput) result = _flags[64]; return result; } } internal bool RequirePermission { get { return _flags[8]; } set { _flags[8] = value; } } internal bool AddUpdate { get { return _flags[65536]; } set { _flags[65536] = value; } } internal bool HasLocationInputs { get { if (LocationInputs != null) return LocationInputs.Count > 0; return false; } } internal List<SectionInput> LocationInputs { get; set; } internal SectionInput LastLocationInput { get { if (!HasLocationInputs) return null; return LocationInputs[LocationInputs.Count - 1]; } } internal bool HasFileInput => FileInput != null; internal SectionInput FileInput { get; set; } internal bool HasIndirectLocationInputs { get { if (IndirectLocationInputs != null) return IndirectLocationInputs.Count > 0; return false; } } internal List<SectionInput> IndirectLocationInputs { get; set; } internal SectionInput LastIndirectLocationInput { get { if (!HasIndirectLocationInputs) return null; return IndirectLocationInputs[IndirectLocationInputs.Count - 1]; } } internal bool HasInput { get { if (!HasLocationInputs && !HasFileInput) return HasIndirectLocationInputs; return true; } } internal bool HasResult => Result != s_unevaluated; internal bool HasResultRuntimeObject => ResultRuntimeObject != s_unevaluated; internal object Result { get; set; } internal object ResultRuntimeObject { get; set; } internal bool HasErrors { get { if (HasLocationInputs) { foreach (SectionInput locationInput in LocationInputs) { if (locationInput.HasErrors) return true; } } if (HasIndirectLocationInputs) { foreach (SectionInput indirectLocationInput in IndirectLocationInputs) { if (indirectLocationInput.HasErrors) return true; } } if (HasFileInput) return FileInput.HasErrors; return false; } } internal SectionRecord(string configKey) { ConfigKey = configKey; Result = s_unevaluated; ResultRuntimeObject = s_unevaluated; } internal void AddLocationInput(SectionInput sectionInput) { AddLocationInputImpl(sectionInput, false); } internal void ChangeLockSettings(OverrideMode forSelf, OverrideMode forChildren) { if (forSelf != 0) { _flags[1] = (forSelf == OverrideMode.Deny); _flags[2] = (forSelf == OverrideMode.Deny); } if (forChildren != 0) _flags[2] = (forSelf == OverrideMode.Deny || forChildren == OverrideMode.Deny); } internal void AddFileInput(SectionInput sectionInput) { FileInput = sectionInput; if (!sectionInput.HasErrors) { OverrideModeSetting overrideModeSetting = sectionInput.SectionXmlInfo.OverrideModeSetting; if (overrideModeSetting.OverrideMode != 0) { _flags[64] = LockChildren; overrideModeSetting = sectionInput.SectionXmlInfo.OverrideModeSetting; ChangeLockSettings(OverrideMode.Inherit, overrideModeSetting.OverrideMode); } } } internal void RemoveFileInput() { if (FileInput != null) { FileInput = null; _flags[2] = Locked; } } internal void AddIndirectLocationInput(SectionInput sectionInput) { AddLocationInputImpl(sectionInput, true); } private void AddLocationInputImpl(SectionInput sectionInput, bool isIndirectLocation) { List<SectionInput> list = isIndirectLocation ? IndirectLocationInputs : LocationInputs; int bit = isIndirectLocation ? 32 : 16; if (list == null) { list = new List<SectionInput>(1); if (isIndirectLocation) IndirectLocationInputs = list; else LocationInputs = list; } list.Insert(0, sectionInput); if (!sectionInput.HasErrors && !_flags[bit]) { OverrideMode overrideMode = sectionInput.SectionXmlInfo.OverrideModeSetting.OverrideMode; if (overrideMode != 0) { ChangeLockSettings(overrideMode, overrideMode); _flags[bit] = true; } } } internal void ClearRawXml() { if (HasLocationInputs) { foreach (SectionInput locationInput in LocationInputs) { locationInput.SectionXmlInfo.RawXml = null; } } if (HasIndirectLocationInputs) { foreach (SectionInput indirectLocationInput in IndirectLocationInputs) { indirectLocationInput.SectionXmlInfo.RawXml = null; } } if (HasFileInput) FileInput.SectionXmlInfo.RawXml = null; } internal void ClearResult() { FileInput?.ClearResult(); if (LocationInputs != null) { foreach (SectionInput locationInput in LocationInputs) { locationInput.ClearResult(); } } Result = s_unevaluated; ResultRuntimeObject = s_unevaluated; } private List<ConfigurationException> GetAllErrors() { List<ConfigurationException> errors = null; if (HasLocationInputs) { foreach (SectionInput locationInput in LocationInputs) { ErrorsHelper.AddErrors(ref errors, locationInput.Errors); } } if (HasIndirectLocationInputs) { foreach (SectionInput indirectLocationInput in IndirectLocationInputs) { ErrorsHelper.AddErrors(ref errors, indirectLocationInput.Errors); } } if (HasFileInput) ErrorsHelper.AddErrors(ref errors, FileInput.Errors); return errors; } internal void ThrowOnErrors() { if (HasErrors) throw new ConfigurationErrorsException(GetAllErrors()); } } }