implementation

brabebhin · Dec 21, 2017 · 2283de7 · 2283de7
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diff --git a/README.md b/README.md
@@ -1,2 +1,5 @@
 # m3uParser
 A dotnet parser for M3U file format
+
+# Thanks
+https://github.com/sprache/Sprache
diff --git a/m3uParser.sln b/m3uParser.sln
@@ -0,0 +1,53 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 15
+VisualStudioVersion = 15.0.26730.10
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{19BA96D9-4DB8-4361-A592-EEBD390650D6}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "m3uParser", "src\m3uParser\m3uParser.csproj", "{40E280F5-E597-4B6F-977E-29C01E2FD3AD}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "test", "test", "{570D28BF-6E44-4FE4-9FC0-770099C0F283}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "m3uParser.tool", "src\m3uParser.tool\m3uParser.tool.csproj", "{29FC7F81-20FC-4C79-95B0-BAE3E0B9F9CD}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{6E62EFF6-EFCE-45C2-A785-27851E19307D}"
+	ProjectSection(SolutionItems) = preProject
+		.gitignore = .gitignore
+		LICENSE = LICENSE
+		README.md = README.md
+	EndProjectSection
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "m3uParser.Test", "test\m3uParser.Test\m3uParser.Test.csproj", "{8A14FB47-E478-4622-B2F3-325A2CB964CC}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{40E280F5-E597-4B6F-977E-29C01E2FD3AD}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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+		{40E280F5-E597-4B6F-977E-29C01E2FD3AD}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{40E280F5-E597-4B6F-977E-29C01E2FD3AD}.Release|Any CPU.Build.0 = Release|Any CPU
+		{29FC7F81-20FC-4C79-95B0-BAE3E0B9F9CD}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{29FC7F81-20FC-4C79-95B0-BAE3E0B9F9CD}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{29FC7F81-20FC-4C79-95B0-BAE3E0B9F9CD}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{29FC7F81-20FC-4C79-95B0-BAE3E0B9F9CD}.Release|Any CPU.Build.0 = Release|Any CPU
+		{8A14FB47-E478-4622-B2F3-325A2CB964CC}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{8A14FB47-E478-4622-B2F3-325A2CB964CC}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{8A14FB47-E478-4622-B2F3-325A2CB964CC}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{8A14FB47-E478-4622-B2F3-325A2CB964CC}.Release|Any CPU.Build.0 = Release|Any CPU
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+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(NestedProjects) = preSolution
+		{40E280F5-E597-4B6F-977E-29C01E2FD3AD} = {19BA96D9-4DB8-4361-A592-EEBD390650D6}
+		{29FC7F81-20FC-4C79-95B0-BAE3E0B9F9CD} = {19BA96D9-4DB8-4361-A592-EEBD390650D6}
+		{8A14FB47-E478-4622-B2F3-325A2CB964CC} = {570D28BF-6E44-4FE4-9FC0-770099C0F283}
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {FD8A92CB-30FC-4366-A370-F1EB643B211D}
+	EndGlobalSection
+EndGlobal
diff --git a/src/m3uParser.tool/App.config b/src/m3uParser.tool/App.config
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7" />
+    </startup>
+</configuration>
diff --git a/src/m3uParser.tool/Program.cs b/src/m3uParser.tool/Program.cs
@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net;
+using System.Net.Http;
+using System.Text;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+
+namespace m3uParser.tool
+{
+    internal class Program
+    {
+        private static void Main(string[] args)
+        {
+        }
+    }
+}
diff --git a/src/m3uParser.tool/Properties/AssemblyInfo.cs b/src/m3uParser.tool/Properties/AssemblyInfo.cs
@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("m3uParser.tool")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("m3uParser.tool")]
+[assembly: AssemblyCopyright("Copyright ©  2017")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible
+// to COM components.  If you need to access a type in this assembly from
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("29fc7f81-20fc-4c79-95b0-bae3e0b9f9cd")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]
diff --git a/src/m3uParser.tool/m3uParser.tool.csproj b/src/m3uParser.tool/m3uParser.tool.csproj
@@ -0,0 +1,58 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{29FC7F81-20FC-4C79-95B0-BAE3E0B9F9CD}</ProjectGuid>
+    <OutputType>Exe</OutputType>
+    <RootNamespace>m3uParser.tool</RootNamespace>
+    <AssemblyName>m3uParser.tool</AssemblyName>
+    <TargetFrameworkVersion>v4.7</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="App.config" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\m3uParser\m3uParser.csproj">
+      <Project>{40e280f5-e597-4b6f-977e-29c01e2fd3ad}</Project>
+      <Name>m3uParser</Name>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+</Project>
diff --git a/src/m3uParser/M3U.cs b/src/m3uParser/M3U.cs
@@ -0,0 +1,46 @@
+using Sprache;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net.Http;
+using System.Text;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+
+namespace m3uParser
+{
+    public static class M3U
+    {
+        public static Root ParseText(string text)
+        {
+            // Clear comments
+            Regex commentRegex = new Regex("##{1,}.*");
+            text = commentRegex.Replace(text, string.Empty);
+
+            // Parse EXTINF
+            return ParseSpecification.root.Parse(text);
+        }
+
+        public static Root ParseBytes(byte[] byteArr)
+        {
+            return ParseText(Encoding.Default.GetString(byteArr));
+        }
+
+        public static Root ParseFromFile(string file)
+        {
+            return ParseText(System.IO.File.ReadAllText(file));
+        }
+
+        public static async Task<Root> ParseFromUrlAsync(string requestUri)
+        {
+            return await ParseFromUrlAsync(requestUri, new HttpClient());
+        }
+
+        public static async Task<Root> ParseFromUrlAsync(string requestUri, HttpClient client)
+        {
+            var get = await client.GetAsync(requestUri);
+            var content = await get.Content.ReadAsStringAsync();
+            return ParseText(content);
+        }
+    }
+}
diff --git a/src/m3uParser/Model/Attributes.cs b/src/m3uParser/Model/Attributes.cs
@@ -0,0 +1,26 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace m3uParser
+{
+    /// <summary>
+    /// https://en.wikipedia.org/wiki/M3U
+    /// https://github.com/sprache/Sprache
+    /// https://tools.ietf.org/html/draft-pantos-http-live-streaming-23#section-4.2
+    /// http://ss-iptv.com/en/users/documents/m3u
+    /// https://developer.apple.com/library/content/technotes/tn2288/_index.html
+    /// </summary>
+    public class AttributeInfo
+    {
+        public IEnumerable<KeyValuePair<string, string>> Attributes { get; set; }
+        public string GroupTitle { get { return this.Attributes.FirstOrDefault(w => w.Key.ToLower().Trim() == "group-title").Value; } }
+        public string GuideTimeShiftingTV { get { return this.Attributes.FirstOrDefault(w => w.Key.ToLower().Trim() == "tvg-shift").Value; } }
+        public string GuideIdentifierTV { get { return this.Attributes.FirstOrDefault(w => w.Key.ToLower().Trim() == "tvg-name").Value; } }
+        public string Logo { get { return this.Attributes.FirstOrDefault(w => w.Key.ToLower().Trim() == "tvg-logo").Value; } }
+        public string AudioTrack { get { return this.Attributes.FirstOrDefault(w => w.Key.ToLower().Trim() == "audio-track").Value; } }
+        public string AspectRatio { get { return this.Attributes.FirstOrDefault(w => w.Key.ToLower().Trim() == "aspect-ratio").Value; } }
+        public string Id { get { return this.Attributes.FirstOrDefault(w => w.Key.ToLower().Trim() == "tvg-id").Value; } }
+    }
+}
diff --git a/src/m3uParser/Model/Media.cs b/src/m3uParser/Model/Media.cs
@@ -0,0 +1,28 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace m3uParser
+{
+    public class Media
+    {
+        public decimal Duration { get; set; }
+
+        public Title Title { get; set; }
+
+        public string MediaFile { get; set; }
+
+        public bool IsStream { get { return this.Duration <= 0; } }
+
+        public AttributeInfo AttributeInfo { get; set; }
+
+        internal Media(decimal duration, IEnumerable<KeyValuePair<string, string>> attributes, Title title, string mediafile)
+        {
+            AttributeInfo = new AttributeInfo();
+            Duration = duration;
+            Title = title;
+            MediaFile = mediafile;
+            AttributeInfo.Attributes = attributes;
+        }
+    }
+}
diff --git a/src/m3uParser/Model/Root.cs b/src/m3uParser/Model/Root.cs
@@ -0,0 +1,21 @@
+using Sprache;
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Text.RegularExpressions;
+
+namespace m3uParser
+{
+    public class Root
+    {
+        public string Header { get; set; }
+
+        public IEnumerable<Media> Media { get; set; }
+
+        internal Root(string header, IEnumerable<Media> media)
+        {
+            Header = header;
+            Media = media;
+        }
+    }
+}
diff --git a/src/m3uParser/Model/Title.cs b/src/m3uParser/Model/Title.cs
@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace m3uParser
+{
+    public class Title
+    {
+        public string RawTitle { get; set; }
+        public string InnerTitle { get; set; }
+
+        public Title(string title, string innerTitle)
+        {
+            RawTitle = title;
+            InnerTitle = innerTitle;
+        }
+    }
+}
diff --git a/src/m3uParser/ParseSpecification.cs b/src/m3uParser/ParseSpecification.cs
@@ -0,0 +1,57 @@
+using Sprache;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace m3uParser
+{
+    internal static class ParseSpecification
+    {
+        public static readonly Parser<Root> root =
+                from header in Parse.String("#EXTM3U").Text()
+                from endOfLine in Parse.LineEnd.Once().Optional()
+                from blankLine in Parse.String(Environment.NewLine).Optional()
+                from info in extinf.AtLeastOnce()
+                select new Root(header, info);
+
+        // https://stackoverflow.com/questions/21414309/sprache-parse-signed-integer
+        public static readonly Parser<Media> extinf =
+            from open in Parse.String("#EXTINF:").Text()
+            from duration in decimalSigned.Once()
+            from space in Parse.WhiteSpace.Once()
+            from param in attributes.Many()
+            from space1 in Parse.Char(',').Once()
+            from title in title.Once()
+            from newLine1 in Parse.LineEnd.Once()
+            from media in Parse.CharExcept(Environment.NewLine).Many().Text()
+            from ignore in Parse.CharExcept('#').Many()
+            select new Media(duration.First(), param, title.First(), media);
+
+        public static readonly Parser<Title> title =
+            from raw in Parse.CharExcept(Environment.NewLine).Many().Text()
+            select new Title(raw, raw);
+
+        public static readonly Parser<string> key =
+            from key in Parse.AnyChar.Except(Parse.Char('=').Or(Parse.Char(','))).Many().Text()
+            select key.Trim();
+
+        public static readonly Parser<string> value =
+            from open in Parse.Char('"').Once()
+            from value in Parse.CharExcept('"').Many().Text()
+            from close in Parse.Char('"').Once()
+            select value;
+
+        // https://gitter.im/sprache/Sprache/archives/2017/02/20
+        public static readonly Parser<KeyValuePair<string, string>> attributes =
+            from key in key
+            from assignment in Parse.Char('=')
+            from value in value
+            select new KeyValuePair<string, string>(key, value);
+
+        public static readonly Parser<decimal> decimalSigned =
+            from op in Parse.Optional(Parse.Char('-').Token())
+            from num in Parse.Decimal
+            select decimal.Parse(num) * (op.IsDefined ? -1 : 1);
+    }
+}