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-rw-r--r--Emby.Server.Implementations/Services/ServicePath.cs564
1 files changed, 0 insertions, 564 deletions
diff --git a/Emby.Server.Implementations/Services/ServicePath.cs b/Emby.Server.Implementations/Services/ServicePath.cs
deleted file mode 100644
index f575baca3..000000000
--- a/Emby.Server.Implementations/Services/ServicePath.cs
+++ /dev/null
@@ -1,564 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Reflection;
-using System.Text;
-
-namespace Emby.Server.Implementations.Services
-{
- public class RestPath
- {
- private const string WildCard = "*";
- private const char WildCardChar = '*';
- private const string PathSeperator = "/";
- private const char PathSeperatorChar = '/';
- private const char ComponentSeperator = '.';
- private const string VariablePrefix = "{";
-
- readonly bool[] componentsWithSeparators;
-
- private readonly string restPath;
- public bool IsWildCardPath { get; private set; }
-
- private readonly string[] literalsToMatch;
-
- private readonly string[] variablesNames;
-
- private readonly bool[] isWildcard;
- private readonly int wildcardCount = 0;
-
- public int VariableArgsCount { get; set; }
-
- /// <summary>
- /// The number of segments separated by '/' determinable by path.Split('/').Length
- /// e.g. /path/to/here.ext == 3
- /// </summary>
- public int PathComponentsCount { get; set; }
-
- /// <summary>
- /// The total number of segments after subparts have been exploded ('.')
- /// e.g. /path/to/here.ext == 4
- /// </summary>
- public int TotalComponentsCount { get; set; }
-
- public string[] Verbs { get; private set; }
-
- public Type RequestType { get; private set; }
-
- public Type ServiceType { get; private set; }
-
- public string Path => this.restPath;
-
- public string Summary { get; private set; }
- public string Description { get; private set; }
- public bool IsHidden { get; private set; }
-
- public int Priority { get; set; } //passed back to RouteAttribute
-
- public IEnumerable<string> PathVariables => this.variablesNames.Where(e => !string.IsNullOrWhiteSpace(e));
-
- public static string[] GetPathPartsForMatching(string pathInfo)
- {
- return pathInfo.ToLowerInvariant().Split(new[] { PathSeperatorChar }, StringSplitOptions.RemoveEmptyEntries);
- }
-
- public static List<string> GetFirstMatchHashKeys(string[] pathPartsForMatching)
- {
- var hashPrefix = pathPartsForMatching.Length + PathSeperator;
- return GetPotentialMatchesWithPrefix(hashPrefix, pathPartsForMatching);
- }
-
- public static List<string> GetFirstMatchWildCardHashKeys(string[] pathPartsForMatching)
- {
- const string hashPrefix = WildCard + PathSeperator;
- return GetPotentialMatchesWithPrefix(hashPrefix, pathPartsForMatching);
- }
-
- private static List<string> GetPotentialMatchesWithPrefix(string hashPrefix, string[] pathPartsForMatching)
- {
- var list = new List<string>();
-
- foreach (var part in pathPartsForMatching)
- {
- list.Add(hashPrefix + part);
-
- var subParts = part.Split(ComponentSeperator);
- if (subParts.Length == 1) continue;
-
- foreach (var subPart in subParts)
- {
- list.Add(hashPrefix + subPart);
- }
- }
-
- return list;
- }
-
- public RestPath(Func<Type, object> createInstanceFn, Func<Type, Func<string, object>> getParseFn, Type requestType, Type serviceType, string path, string verbs, bool isHidden = false, string summary = null, string description = null)
- {
- this.RequestType = requestType;
- this.ServiceType = serviceType;
- this.Summary = summary;
- this.IsHidden = isHidden;
- this.Description = description;
- this.restPath = path;
-
- this.Verbs = string.IsNullOrWhiteSpace(verbs) ? ServiceExecExtensions.AllVerbs : verbs.ToUpperInvariant().Split(new[] { ' ', ',' }, StringSplitOptions.RemoveEmptyEntries);
-
- var componentsList = new List<string>();
-
- //We only split on '.' if the restPath has them. Allows for /{action}.{type}
- var hasSeparators = new List<bool>();
- foreach (var component in this.restPath.Split(PathSeperatorChar))
- {
- if (string.IsNullOrEmpty(component)) continue;
-
- if (StringContains(component, VariablePrefix)
- && component.IndexOf(ComponentSeperator) != -1)
- {
- hasSeparators.Add(true);
- componentsList.AddRange(component.Split(ComponentSeperator));
- }
- else
- {
- hasSeparators.Add(false);
- componentsList.Add(component);
- }
- }
-
- var components = componentsList.ToArray();
- this.TotalComponentsCount = components.Length;
-
- this.literalsToMatch = new string[this.TotalComponentsCount];
- this.variablesNames = new string[this.TotalComponentsCount];
- this.isWildcard = new bool[this.TotalComponentsCount];
- this.componentsWithSeparators = hasSeparators.ToArray();
- this.PathComponentsCount = this.componentsWithSeparators.Length;
- string firstLiteralMatch = null;
-
- for (var i = 0; i < components.Length; i++)
- {
- var component = components[i];
-
- if (component.StartsWith(VariablePrefix))
- {
- var variableName = component.Substring(1, component.Length - 2);
- if (variableName[variableName.Length - 1] == WildCardChar)
- {
- this.isWildcard[i] = true;
- variableName = variableName.Substring(0, variableName.Length - 1);
- }
- this.variablesNames[i] = variableName;
- this.VariableArgsCount++;
- }
- else
- {
- this.literalsToMatch[i] = component.ToLowerInvariant();
-
- if (firstLiteralMatch == null)
- {
- firstLiteralMatch = this.literalsToMatch[i];
- }
- }
- }
-
- for (var i = 0; i < components.Length - 1; i++)
- {
- if (!this.isWildcard[i]) continue;
- if (this.literalsToMatch[i + 1] == null)
- {
- throw new ArgumentException(
- "A wildcard path component must be at the end of the path or followed by a literal path component.");
- }
- }
-
- this.wildcardCount = this.isWildcard.Count(x => x);
- this.IsWildCardPath = this.wildcardCount > 0;
-
- this.FirstMatchHashKey = !this.IsWildCardPath
- ? this.PathComponentsCount + PathSeperator + firstLiteralMatch
- : WildCardChar + PathSeperator + firstLiteralMatch;
-
- this.typeDeserializer = new StringMapTypeDeserializer(createInstanceFn, getParseFn, this.RequestType);
- RegisterCaseInsenstivePropertyNameMappings();
- }
-
- private void RegisterCaseInsenstivePropertyNameMappings()
- {
- foreach (var propertyInfo in GetSerializableProperties(RequestType))
- {
- var propertyName = propertyInfo.Name;
- propertyNamesMap.Add(propertyName.ToLowerInvariant(), propertyName);
- }
- }
-
- internal static string[] IgnoreAttributesNamed = new[] {
- "IgnoreDataMemberAttribute",
- "JsonIgnoreAttribute"
- };
-
-
- private static Type excludeType = typeof(Stream);
-
- internal static List<PropertyInfo> GetSerializableProperties(Type type)
- {
- var list = new List<PropertyInfo>();
- var props = GetPublicProperties(type);
-
- foreach (var prop in props)
- {
- if (prop.GetMethod == null)
- {
- continue;
- }
-
- if (excludeType == prop.PropertyType)
- {
- continue;
- }
-
- var ignored = false;
- foreach (var attr in prop.GetCustomAttributes(true))
- {
- if (IgnoreAttributesNamed.Contains(attr.GetType().Name))
- {
- ignored = true;
- break;
- }
- }
-
- if (!ignored)
- {
- list.Add(prop);
- }
- }
-
- // else return those properties that are not decorated with IgnoreDataMember
- return list;
- }
-
- private static List<PropertyInfo> GetPublicProperties(Type type)
- {
- if (type.GetTypeInfo().IsInterface)
- {
- var propertyInfos = new List<PropertyInfo>();
-
- var considered = new List<Type>();
- var queue = new Queue<Type>();
- considered.Add(type);
- queue.Enqueue(type);
-
- while (queue.Count > 0)
- {
- var subType = queue.Dequeue();
- foreach (var subInterface in subType.GetTypeInfo().ImplementedInterfaces)
- {
- if (considered.Contains(subInterface)) continue;
-
- considered.Add(subInterface);
- queue.Enqueue(subInterface);
- }
-
- var typeProperties = GetTypesPublicProperties(subType);
-
- var newPropertyInfos = typeProperties
- .Where(x => !propertyInfos.Contains(x));
-
- propertyInfos.InsertRange(0, newPropertyInfos);
- }
-
- return propertyInfos;
- }
-
- var list = new List<PropertyInfo>();
-
- foreach (var t in GetTypesPublicProperties(type))
- {
- if (t.GetIndexParameters().Length == 0)
- {
- list.Add(t);
- }
- }
- return list;
- }
-
- private static PropertyInfo[] GetTypesPublicProperties(Type subType)
- {
- var pis = new List<PropertyInfo>();
- foreach (var pi in subType.GetRuntimeProperties())
- {
- var mi = pi.GetMethod ?? pi.SetMethod;
- if (mi != null && mi.IsStatic) continue;
- pis.Add(pi);
- }
- return pis.ToArray();
- }
-
- /// <summary>
- /// Provide for quick lookups based on hashes that can be determined from a request url
- /// </summary>
- public string FirstMatchHashKey { get; private set; }
-
- private readonly StringMapTypeDeserializer typeDeserializer;
-
- private readonly Dictionary<string, string> propertyNamesMap = new Dictionary<string, string>();
-
- public int MatchScore(string httpMethod, string[] withPathInfoParts)
- {
- var isMatch = IsMatch(httpMethod, withPathInfoParts, out var wildcardMatchCount);
- if (!isMatch)
- {
- return -1;
- }
-
- var score = 0;
-
- //Routes with least wildcard matches get the highest score
- score += Math.Max((100 - wildcardMatchCount), 1) * 1000;
-
- //Routes with less variable (and more literal) matches
- score += Math.Max((10 - VariableArgsCount), 1) * 100;
-
- //Exact verb match is better than ANY
- if (Verbs.Length == 1 && string.Equals(httpMethod, Verbs[0], StringComparison.OrdinalIgnoreCase))
- {
- score += 10;
- }
- else
- {
- score += 1;
- }
-
- return score;
- }
-
- private bool StringContains(string str1, string str2)
- {
- return str1.IndexOf(str2, StringComparison.OrdinalIgnoreCase) != -1;
- }
-
- /// <summary>
- /// For performance withPathInfoParts should already be a lower case string
- /// to minimize redundant matching operations.
- /// </summary>
- public bool IsMatch(string httpMethod, string[] withPathInfoParts, out int wildcardMatchCount)
- {
- wildcardMatchCount = 0;
-
- if (withPathInfoParts.Length != this.PathComponentsCount && !this.IsWildCardPath)
- {
- return false;
- }
-
- if (!Verbs.Contains(httpMethod, StringComparer.OrdinalIgnoreCase))
- {
- return false;
- }
-
- if (!ExplodeComponents(ref withPathInfoParts))
- {
- return false;
- }
-
- if (this.TotalComponentsCount != withPathInfoParts.Length && !this.IsWildCardPath)
- {
- return false;
- }
-
- int pathIx = 0;
- for (var i = 0; i < this.TotalComponentsCount; i++)
- {
- if (this.isWildcard[i])
- {
- if (i < this.TotalComponentsCount - 1)
- {
- // Continue to consume up until a match with the next literal
- while (pathIx < withPathInfoParts.Length && !LiteralsEqual(withPathInfoParts[pathIx], this.literalsToMatch[i + 1]))
- {
- pathIx++;
- wildcardMatchCount++;
- }
-
- // Ensure there are still enough parts left to match the remainder
- if ((withPathInfoParts.Length - pathIx) < (this.TotalComponentsCount - i - 1))
- {
- return false;
- }
- }
- else
- {
- // A wildcard at the end matches the remainder of path
- wildcardMatchCount += withPathInfoParts.Length - pathIx;
- pathIx = withPathInfoParts.Length;
- }
- }
- else
- {
- var literalToMatch = this.literalsToMatch[i];
- if (literalToMatch == null)
- {
- // Matching an ordinary (non-wildcard) variable consumes a single part
- pathIx++;
- continue;
- }
-
- if (withPathInfoParts.Length <= pathIx || !LiteralsEqual(withPathInfoParts[pathIx], literalToMatch))
- {
- return false;
- }
- pathIx++;
- }
- }
-
- return pathIx == withPathInfoParts.Length;
- }
-
- private static bool LiteralsEqual(string str1, string str2)
- {
- // Most cases
- if (string.Equals(str1, str2, StringComparison.OrdinalIgnoreCase))
- {
- return true;
- }
-
- // Handle turkish i
- str1 = str1.ToUpperInvariant();
- str2 = str2.ToUpperInvariant();
-
- // Invariant IgnoreCase would probably be better but it's not available in PCL
- return string.Equals(str1, str2, StringComparison.CurrentCultureIgnoreCase);
- }
-
- private bool ExplodeComponents(ref string[] withPathInfoParts)
- {
- var totalComponents = new List<string>();
- for (var i = 0; i < withPathInfoParts.Length; i++)
- {
- var component = withPathInfoParts[i];
- if (string.IsNullOrEmpty(component)) continue;
-
- if (this.PathComponentsCount != this.TotalComponentsCount
- && this.componentsWithSeparators[i])
- {
- var subComponents = component.Split(ComponentSeperator);
- if (subComponents.Length < 2) return false;
- totalComponents.AddRange(subComponents);
- }
- else
- {
- totalComponents.Add(component);
- }
- }
-
- withPathInfoParts = totalComponents.ToArray();
- return true;
- }
-
- public object CreateRequest(string pathInfo, Dictionary<string, string> queryStringAndFormData, object fromInstance)
- {
- var requestComponents = pathInfo.Split(new[] { PathSeperatorChar }, StringSplitOptions.RemoveEmptyEntries);
-
- ExplodeComponents(ref requestComponents);
-
- if (requestComponents.Length != this.TotalComponentsCount)
- {
- var isValidWildCardPath = this.IsWildCardPath
- && requestComponents.Length >= this.TotalComponentsCount - this.wildcardCount;
-
- if (!isValidWildCardPath)
- throw new ArgumentException(string.Format(
- "Path Mismatch: Request Path '{0}' has invalid number of components compared to: '{1}'",
- pathInfo, this.restPath));
- }
-
- var requestKeyValuesMap = new Dictionary<string, string>();
- var pathIx = 0;
- for (var i = 0; i < this.TotalComponentsCount; i++)
- {
- var variableName = this.variablesNames[i];
- if (variableName == null)
- {
- pathIx++;
- continue;
- }
-
- if (!this.propertyNamesMap.TryGetValue(variableName.ToLowerInvariant(), out var propertyNameOnRequest))
- {
- if (string.Equals("ignore", variableName, StringComparison.OrdinalIgnoreCase))
- {
- pathIx++;
- continue;
- }
-
- throw new ArgumentException("Could not find property "
- + variableName + " on " + RequestType.GetMethodName());
- }
-
- var value = requestComponents.Length > pathIx ? requestComponents[pathIx] : null; //wildcard has arg mismatch
- if (value != null && this.isWildcard[i])
- {
- if (i == this.TotalComponentsCount - 1)
- {
- // Wildcard at end of path definition consumes all the rest
- var sb = new StringBuilder();
- sb.Append(value);
- for (var j = pathIx + 1; j < requestComponents.Length; j++)
- {
- sb.Append(PathSeperatorChar + requestComponents[j]);
- }
- value = sb.ToString();
- }
- else
- {
- // Wildcard in middle of path definition consumes up until it
- // hits a match for the next element in the definition (which must be a literal)
- // It may consume 0 or more path parts
- var stopLiteral = i == this.TotalComponentsCount - 1 ? null : this.literalsToMatch[i + 1];
- if (!string.Equals(requestComponents[pathIx], stopLiteral, StringComparison.OrdinalIgnoreCase))
- {
- var sb = new StringBuilder();
- sb.Append(value);
- pathIx++;
- while (!string.Equals(requestComponents[pathIx], stopLiteral, StringComparison.OrdinalIgnoreCase))
- {
- sb.Append(PathSeperatorChar + requestComponents[pathIx++]);
- }
- value = sb.ToString();
- }
- else
- {
- value = null;
- }
- }
- }
- else
- {
- // Variable consumes single path item
- pathIx++;
- }
-
- requestKeyValuesMap[propertyNameOnRequest] = value;
- }
-
- if (queryStringAndFormData != null)
- {
- //Query String and form data can override variable path matches
- //path variables < query string < form data
- foreach (var name in queryStringAndFormData)
- {
- requestKeyValuesMap[name.Key] = name.Value;
- }
- }
-
- return this.typeDeserializer.PopulateFromMap(fromInstance, requestKeyValuesMap);
- }
-
- public class RestPathMap : SortedDictionary<string, List<RestPath>>
- {
- public RestPathMap() : base(StringComparer.OrdinalIgnoreCase)
- {
- }
- }
- }
-}