feat: Portable Debug Data images (#56)

README.md

@@ -86,6 +86,95 @@ This method accepts the following arguments:
 - `category`: A custom value used to arbitrarily group this Breadcrumb.
 - `customData`: Any custom data you want to record about application state when the Breadcrumb was recorded.
 
+### Stack traces and portable debug data
+
+Raygun for Blazor attaches both stack traces and the necessary info for portable debug data automatically.
+
+#### Blazor stack traces
+
+Exceptions originating within the Blazor environment should contain a stack trace attached.
+For details, check the "Raw Data" tab on the Raygun error report. 
+The stack trace is contained inside `error.stackTrace` property.
+
+For example:
+
+```json
+"error": {
+  "className": "System.DivideByZeroException",
+  "message": "Attempted to divide by zero.",
+  "stackTrace": [
+    {
+      "className": "Raygun.Samples.Blazor.Server.Components.Pages.Sample",
+      "columnNumber": 75,
+      "fileName": "...\\src\\Raygun.Samples.Blazor.Server\\Components\\Pages\\Sample.razor",
+      "ilOffset": 5,
+      "lineNumber": 13,
+      "methodName": "",
+      "methodToken": 100663352
+    },
+    // ...
+  ]
+},
+```
+
+This also works for exceptions originating in Blazor WebAssembly applications.
+For example, this exception captured on WebAssembly:
+
+```json
+"error": {
+  "className": "System.DivideByZeroException",
+  "message": "Attempted to divide by zero.",
+  "stackTrace": [
+    {
+      "className": "Raygun.Samples.Blazor.WebAssembly.ViewModels.CounterViewModel",
+      "columnNumber": 17,
+      "fileName": "...\\src\\Raygun.Samples.Blazor.WebAssembly\\ViewModels\\CounterViewModel.cs",
+      "ilOffset": 34,
+      "lineNumber": 48,
+      "methodName": "IncrementCountAsync",
+      "methodToken": 100663343
+    },
+    // ...
+  ]
+},
+```
+
+#### JavaScript stack traces
+
+Exceptions happening in the JavaScript side of a Blazor application should contain a stack trace referring to the JavaScript code that caused the error.
+
+For example:
+
+```
+ReferenceError: undefinedfunction3 is not defined
+at causeErrors (https://localhost:7254/myfunctions.js:10:9)
+at window.onmessage (https://localhost:7254/:21:17)
+```
+
+#### Portable debug data (PDB)
+
+Raygun for Blazor supports debugging reports using PDB files when running on Blazor Server and MAUI applications.
+The necessary image information will be attached automatically to error reports.
+
+The debug data can be found in the `error.images` property:
+
+```json
+"error": {
+  "className": "System.DivideByZeroException",
+  "images": [
+    {
+      "signature": "a93d65be-ba53-4743-a1a5-4743716b7a42",
+      "checksum": "SHA256:BE653DA953BA4337A1A54743716B7A42A678F57568949BE3C375DB0BABF8EC35",
+      "file": "...\\src\\Raygun.Samples.Blazor.Server\\obj\\Debug\\net8.0\\Raygun.Samples.Blazor.Server.pdb",
+      "timestamp": "A1E84548"
+    },
+    // ...
+  ],
+},
+```
+
+You can learn more about Portable PDB Support [on Raygun's .Net Framework documentation](https://raygun.com/documentation/language-guides/dotnet/crash-reporting/net-framework/#portable-pdb-support).
+
 ### Environment details
 
 Raygun for Blazor captures environment details differently depending on the platform where the error originated.

src/Raygun.Blazor.Maui/Control/RaygunErrorBoundary.cs

@@ -1,4 +1,6 @@
-using Microsoft.AspNetCore.Components;
+using System;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Components;
 using Microsoft.AspNetCore.Components.Rendering;
 using Microsoft.AspNetCore.Components.Web;
 using Microsoft.Extensions.Options;

src/Raygun.Blazor.Maui/Extensions/MauiExtensions.cs

@@ -1,21 +1,21 @@
 using KristofferStrube.Blazor.Window;
 using Microsoft.Extensions.Options;
-using Raygun.Blazor;
-using Raygun.Blazor.Interfaces;
-using Raygun.Blazor.Offline;
-using Raygun.Blazor.Offline.SendStrategy;
 using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Maui.Hosting;
+using Raygun.Blazor.Models;
 
 namespace Raygun.Blazor.Maui
 {
     public static class MauiExtensions
     {
         public static MauiAppBuilder UseRaygunBlazorMaui(this MauiAppBuilder builder, string configSectionName = "Raygun")
         {
+#if ANDROID
+            // Replace default AssemblyReaderProvider with the Android Assembly reader from Raygun4Maui
+            ErrorDetails.AssemblyReaderProvider = AndroidUtilities.CreateAssemblyReader()!.TryGetReader;
+#endif
+
             builder.Services.Configure<RaygunSettings>(builder.Configuration.GetSection(configSectionName));
             builder.Services.AddScoped<RaygunBrowserInterop>();
             builder.Services.AddScoped<IWindowService, WindowService>();

src/Raygun.Blazor.Maui/Platforms/Android/AndroidUtilities.cs

@@ -0,0 +1,84 @@
+using System.IO.Compression;
+using System.Runtime.InteropServices;
+using System.Text;
+
+namespace Raygun.Blazor.Maui;
+
+internal static class AndroidUtilities
+{
+    /// <summary>
+    /// Factory method to create the correct assembly reader for the current application
+    /// </summary>
+    /// <returns></returns>
+    public static IAssemblyReader? CreateAssemblyReader()
+    {
+        var apkPath = Android.App.Application.Context.ApplicationInfo?.SourceDir;
+        var supportedAbis = new List<string>();
+
+        if (Android.OS.Build.SupportedAbis != null)
+        {
+            supportedAbis.AddRange(Android.OS.Build.SupportedAbis);
+        }
+
+        if (!File.Exists(apkPath))
+        {
+            // No apk, so return nothing
+            return null;
+        }
+
+        if (!IsAndroidArchive(apkPath))
+        {
+            // Not a valid android archive so nothing to return
+            return null;
+        }
+
+        // Open the apk file, and see if it has a manifest, if it does,
+        // we are using the new assembly store method,
+        // else it's just a normal zip with assemblies as archive entries
+        using var zipArchive = ZipFile.Open(apkPath, ZipArchiveMode.Read);
+
+        if (zipArchive.GetEntry("assemblies/assemblies.manifest") != null)
+        {
+            return new AssemblyBlobStoreReader(zipArchive, supportedAbis);
+        }
+
+        return new AssemblyZipEntryReader(zipArchive, supportedAbis);
+    }
+
+    public static bool IsAndroidArchive(string filePath)
+    {
+        return filePath.EndsWith(".aab", StringComparison.OrdinalIgnoreCase) ||
+               filePath.EndsWith(".apk", StringComparison.OrdinalIgnoreCase) ||
+               filePath.EndsWith(".zip", StringComparison.OrdinalIgnoreCase);
+    }
+
+    public static ReadOnlyMemory<byte> AsReadOnlyMemory(this Stream stream)
+    {
+        ArgumentNullException.ThrowIfNull(stream);
+
+        using var memoryStream = new MemoryStream();
+        stream.CopyTo(memoryStream);
+        return new ReadOnlyMemory<byte>(memoryStream.ToArray());
+    }
+
+    public static byte[] ToArray(this ReadOnlyMemory<byte> memory)
+    {
+        if (!MemoryMarshal.TryGetArray(memory, out var segment))
+        {
+            throw new InvalidOperationException("Could not get array segment from ReadOnlyMemory.");
+        }
+
+        return segment.Array!;
+    }
+
+    public static BinaryReader GetBinaryReader(this ReadOnlyMemory<byte> memory, Encoding? encoding = null)
+    {
+        return new BinaryReader(memory.AsStream(), encoding ?? Encoding.UTF8, false);
+    }
+
+
+    public static MemoryStream AsStream(this ReadOnlyMemory<byte> memory)
+    {
+        return new MemoryStream(memory.ToArray(), writable: false);
+    }
+}