mirror of
https://github.com/btcpayserver/btcpayserver.git
synced 2024-11-19 09:54:30 +01:00
540 lines
24 KiB
C#
540 lines
24 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Diagnostics.CodeAnalysis;
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using System.Globalization;
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using System.IO;
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using System.IO.Compression;
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using System.Linq;
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using System.Reflection;
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using System.Text.RegularExpressions;
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using BTCPayServer.Abstractions.Contracts;
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using BTCPayServer.Configuration;
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using McMaster.NETCore.Plugins;
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using Microsoft.AspNetCore.Builder;
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using Microsoft.AspNetCore.Hosting;
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using Microsoft.AspNetCore.Server.Kestrel.Core;
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using Microsoft.Extensions.Configuration;
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using Microsoft.Extensions.DependencyInjection;
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using Microsoft.Extensions.FileProviders;
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using Microsoft.Extensions.Logging;
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using Newtonsoft.Json.Linq;
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namespace BTCPayServer.Plugins
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{
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public static class PluginManager
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{
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public const string BTCPayPluginSuffix = ".btcpay";
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private static readonly List<Assembly> _pluginAssemblies = new ();
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public static bool IsExceptionByPlugin(Exception exception, [MaybeNullWhen(false)] out string pluginName)
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{
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var fromAssembly = exception is TypeLoadException
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? Regex.Match(exception.Message, "from assembly '(.*?),").Groups[1].Value
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: null;
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foreach (var assembly in _pluginAssemblies)
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{
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var assemblyName = assembly.GetName().Name;
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if (assemblyName is null)
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continue;
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// Comparison is case sensitive as it is theoretically possible to have a different plugin
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// with same name but different casing.
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if (exception.Source is not null &&
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assemblyName.Equals(exception.Source, StringComparison.Ordinal))
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{
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pluginName = assemblyName;
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return true;
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}
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if (exception.Message.Contains(assemblyName, StringComparison.Ordinal))
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{
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pluginName = assemblyName;
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return true;
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}
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// For TypeLoadException, check if it might come from areferenced assembly
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if (!string.IsNullOrEmpty(fromAssembly) && assembly.GetReferencedAssemblies().Select(a => a.Name).Contains(fromAssembly))
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{
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pluginName = assemblyName;
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return true;
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}
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}
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pluginName = null;
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return false;
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}
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public static IMvcBuilder AddPlugins(this IMvcBuilder mvcBuilder, IServiceCollection serviceCollection,
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IConfiguration config, ILoggerFactory loggerFactory, ServiceProvider bootstrapServiceProvider)
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{
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void LoadPluginsFromAssemblies(Assembly systemAssembly1, HashSet<string> exclude, HashSet<string> loadedPluginIdentifiers1,
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List<IBTCPayServerPlugin> btcPayServerPlugins)
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{
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// Load the referenced assembly plugins
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// All referenced plugins should have at least one plugin with exact same plugin identifier
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// as the assembly. Except for the system assembly (btcpayserver assembly) which are fake plugins
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foreach (var assembly in AppDomain.CurrentDomain.GetAssemblies())
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{
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var assemblyName = assembly.GetName().Name;
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bool isSystemPlugin = assembly == systemAssembly1;
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if (!isSystemPlugin && exclude.Contains(assemblyName))
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continue;
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foreach (var plugin in GetPluginInstancesFromAssembly(assembly))
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{
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if (!isSystemPlugin && plugin.Identifier != assemblyName)
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continue;
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if (!loadedPluginIdentifiers1.Add(plugin.Identifier))
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continue;
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btcPayServerPlugins.Add(plugin);
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plugin.SystemPlugin = isSystemPlugin;
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}
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}
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}
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var logger = loggerFactory.CreateLogger(typeof(PluginManager));
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var pluginsFolder = new DataDirectories().Configure(config).PluginDir;
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var plugins = new List<IBTCPayServerPlugin>();
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var loadedPluginIdentifiers = new HashSet<string>();
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serviceCollection.Configure<KestrelServerOptions>(options =>
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{
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options.Limits.MaxRequestBodySize = int.MaxValue; // if don't set default value is: 30 MB
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});
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logger.LogInformation($"Loading plugins from {pluginsFolder}");
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Directory.CreateDirectory(pluginsFolder);
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ExecuteCommands(pluginsFolder);
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var disabledPluginIdentifiers = GetDisabledPluginIdentifiers(pluginsFolder);
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var systemAssembly = typeof(Program).Assembly;
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LoadPluginsFromAssemblies(systemAssembly, disabledPluginIdentifiers, loadedPluginIdentifiers, plugins);
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if (ExecuteCommands(pluginsFolder, plugins.ToDictionary(plugin => plugin.Identifier, plugin => plugin.Version)))
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{
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plugins.Clear();
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loadedPluginIdentifiers.Clear();
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LoadPluginsFromAssemblies(systemAssembly, disabledPluginIdentifiers, loadedPluginIdentifiers, plugins);
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}
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var pluginsToLoad = new List<(string PluginIdentifier, string PluginFilePath)>();
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#if DEBUG
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// Load from DEBUG_PLUGINS, in an optional appsettings.dev.json
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var debugPlugins = config["DEBUG_PLUGINS"] ?? "";
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foreach (var plugin in debugPlugins.Split(';', StringSplitOptions.RemoveEmptyEntries))
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{
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// Formatted either as "<PLUGIN_IDENTIFIER>::<PathToDll>" or "<PathToDll>"
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var idx = plugin.IndexOf("::");
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if (idx != -1)
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pluginsToLoad.Add((plugin[0..idx], plugin[(idx + 1)..]));
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else
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pluginsToLoad.Add((Path.GetFileNameWithoutExtension(plugin), plugin));
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}
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#endif
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// Load from the plugins folder
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foreach (var directory in Directory.GetDirectories(pluginsFolder))
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{
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var pluginIdentifier = Path.GetFileName(directory);
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var pluginFilePath = Path.Combine(directory, pluginIdentifier + ".dll");
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if (!File.Exists(pluginFilePath))
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continue;
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if (disabledPluginIdentifiers.Contains(pluginIdentifier))
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continue;
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pluginsToLoad.Add((pluginIdentifier, pluginFilePath));
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}
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ReorderPlugins(pluginsFolder, pluginsToLoad);
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foreach (var toLoad in pluginsToLoad)
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{
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// This used to be a standalone plugin but due to popular demand has been made as part of core. If we detect an install, we remove the redundant plugin.
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if (toLoad.PluginIdentifier == "BTCPayServer.Plugins.NFC")
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{
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QueueCommands(pluginsFolder, ("delete", toLoad.PluginIdentifier));
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continue;
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}
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if (!loadedPluginIdentifiers.Add(toLoad.PluginIdentifier))
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continue;
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try
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{
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var plugin = PluginLoader.CreateFromAssemblyFile(
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toLoad.PluginFilePath, // create a plugin from for the .dll file
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config =>
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{
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// this ensures that the version of MVC is shared between this app and the plugin
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config.PreferSharedTypes = true;
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config.IsUnloadable = false;
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});
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var pluginAssembly = plugin.LoadDefaultAssembly();
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var p = GetPluginInstanceFromAssembly(toLoad.PluginIdentifier, pluginAssembly);
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if (p == null)
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{
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logger.LogError($"The plugin assembly doesn't contain the plugin {toLoad.PluginIdentifier}");
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}
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else
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{
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mvcBuilder.AddPluginLoader(plugin);
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_pluginAssemblies.Add(pluginAssembly);
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p.SystemPlugin = false;
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plugins.Add(p);
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}
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}
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catch (Exception e)
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{
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logger.LogError(e,
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$"Error when loading plugin {toLoad.PluginIdentifier}");
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}
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}
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foreach (var plugin in plugins)
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{
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if (plugin.Identifier == "BTCPayServer.Plugins.Prism" && plugin.Version <= new Version("1.1.18"))
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{
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QueueCommands(pluginsFolder, ("disable", plugin.Identifier));
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logger.LogWarning("Please update your prism plugin, this version is incompatible");
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continue;
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}
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if (plugin.Identifier == "BTCPayServer.Plugins.Wabisabi" && plugin.Version <= new Version("1.0.66"))
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{
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QueueCommands(pluginsFolder, ("disable", plugin.Identifier));
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continue;
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}
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try
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{
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logger.LogInformation(
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$"Adding and executing plugin {plugin.Identifier} - {plugin.Version}");
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var pluginServiceCollection = new PluginServiceCollection(serviceCollection, bootstrapServiceProvider);
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plugin.Execute(pluginServiceCollection);
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serviceCollection.AddSingleton(plugin);
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}
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catch (Exception e)
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{
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logger.LogError(
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$"Error when loading plugin {plugin.Identifier} - {plugin.Version}{Environment.NewLine}{e.Message}");
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}
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}
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return mvcBuilder;
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}
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private static void ReorderPlugins(string pluginsFolder, List<(string PluginIdentifier, string PluginFilePath)> pluginsToLoad)
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{
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Dictionary<string, int> ordersByPlugin = new Dictionary<string, int>();
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var orderFilePath = Path.Combine(pluginsFolder, "order");
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int order = 0;
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if (File.Exists(orderFilePath))
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{
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foreach (var o in File.ReadLines(orderFilePath))
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{
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if (ordersByPlugin.TryAdd(o, order))
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order++;
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}
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}
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foreach (var p in pluginsToLoad)
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{
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if (ordersByPlugin.TryAdd(p.PluginIdentifier, order))
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order++;
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}
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pluginsToLoad.Sort((a, b) => ordersByPlugin[a.PluginIdentifier] - ordersByPlugin[b.PluginIdentifier]);
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}
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public static void UsePlugins(this IApplicationBuilder applicationBuilder)
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{
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HashSet<Assembly> assemblies = new HashSet<Assembly>();
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foreach (var extension in applicationBuilder.ApplicationServices
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.GetServices<IBTCPayServerPlugin>())
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{
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extension.Execute(applicationBuilder,
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applicationBuilder.ApplicationServices);
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assemblies.Add(extension.GetType().Assembly);
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}
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var webHostEnvironment = applicationBuilder.ApplicationServices.GetService<IWebHostEnvironment>();
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List<IFileProvider> providers = new List<IFileProvider>() { webHostEnvironment.WebRootFileProvider };
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providers.AddRange(assemblies.Select(a => new EmbeddedFileProvider(a)));
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webHostEnvironment.WebRootFileProvider = new CompositeFileProvider(providers);
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}
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private static IEnumerable<IBTCPayServerPlugin> GetPluginInstancesFromAssembly(Assembly assembly)
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{
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return GetTypesNotCrash(assembly).Where(type =>
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typeof(IBTCPayServerPlugin).IsAssignableFrom(type) && type != typeof(PluginService.AvailablePlugin) &&
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!type.IsAbstract).
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Select(type => (IBTCPayServerPlugin)Activator.CreateInstance(type, Array.Empty<object>()));
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}
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private static IEnumerable<Type> GetTypesNotCrash(Assembly assembly)
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{
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try
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{
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// Strange crash with selenium
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if (assembly.FullName.Contains("Selenium", StringComparison.OrdinalIgnoreCase))
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return Array.Empty<Type>();
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return assembly.GetTypes();
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}
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catch(ReflectionTypeLoadException ex)
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{
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return ex.Types.Where(t => t is not null).ToArray();
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}
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}
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private static IBTCPayServerPlugin GetPluginInstanceFromAssembly(string pluginIdentifier, Assembly assembly)
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{
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return GetPluginInstancesFromAssembly(assembly).FirstOrDefault(plugin => plugin.Identifier == pluginIdentifier);
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}
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private static bool ExecuteCommands(string pluginsFolder, Dictionary<string, Version> installed = null)
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{
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var pendingCommands = GetPendingCommands(pluginsFolder);
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if (!pendingCommands.Any())
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{
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return false;
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}
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var remainingCommands = (from command in pendingCommands where !ExecuteCommand(command, pluginsFolder, false, installed) select $"{command.command}:{command.plugin}").ToList();
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if (remainingCommands.Any())
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{
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File.WriteAllLines(Path.Combine(pluginsFolder, "commands"), remainingCommands);
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}
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else
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{
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File.Delete(Path.Combine(pluginsFolder, "commands"));
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}
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return remainingCommands.Count != pendingCommands.Length;
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}
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private static Dictionary<string, (Version, IBTCPayServerPlugin.PluginDependency[] Dependencies, bool Disabled)> TryGetInstalledInfo(
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string pluginsFolder)
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{
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var disabled = GetDisabledPluginIdentifiers(pluginsFolder);
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var installed = new Dictionary<string, (Version, IBTCPayServerPlugin.PluginDependency[] Dependencies, bool Disabled)>();
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foreach (string pluginDir in Directory.EnumerateDirectories(pluginsFolder))
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{
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var plugin = Path.GetFileName(pluginDir);
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var dirName = Path.Combine(pluginsFolder, plugin);
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var isDisabled = disabled.Contains(plugin);
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var manifestFileName = Path.Combine(dirName, plugin + ".json");
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if (File.Exists(manifestFileName))
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{
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var pluginManifest = JObject.Parse(File.ReadAllText(manifestFileName)).ToObject<PluginService.AvailablePlugin>();
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installed.TryAdd(pluginManifest.Identifier, (pluginManifest.Version, pluginManifest.Dependencies, isDisabled));
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}
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else if (isDisabled)
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{
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// Disabled plugin might not have a manifest, but we still need to include
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// it in the list, so that it can be shown on the Manage Plugins page
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installed.TryAdd(plugin, (null, null, true));
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}
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}
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return installed;
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}
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private static bool DependenciesMet(string pluginsFolder, string plugin, Dictionary<string, Version> installed)
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{
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var dirName = Path.Combine(pluginsFolder, plugin);
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var manifestFileName = dirName + ".json";
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if (!File.Exists(manifestFileName)) return true;
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var pluginManifest = JObject.Parse(File.ReadAllText(manifestFileName)).ToObject<PluginService.AvailablePlugin>();
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return DependenciesMet(pluginManifest.Dependencies, installed);
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}
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private static bool ExecuteCommand((string command, string extension) command, string pluginsFolder,
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bool ignoreOrder, Dictionary<string, Version> installed)
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{
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var dirName = Path.Combine(pluginsFolder, command.extension);
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switch (command.command)
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{
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case "update":
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if (!DependenciesMet(pluginsFolder, command.extension, installed))
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return false;
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ExecuteCommand(("delete", command.extension), pluginsFolder, true, installed);
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ExecuteCommand(("install", command.extension), pluginsFolder, true, installed);
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break;
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case "delete":
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ExecuteCommand(("enable", command.extension), pluginsFolder, true, installed);
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if (File.Exists(dirName))
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{
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File.Delete(dirName);
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}
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if (Directory.Exists(dirName))
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{
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Directory.Delete(dirName, true);
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if (!ignoreOrder && File.Exists(Path.Combine(pluginsFolder, "order")))
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{
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var orders = File.ReadAllLines(Path.Combine(pluginsFolder, "order"));
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File.WriteAllLines(Path.Combine(pluginsFolder, "order"),
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orders.Where(s => s != command.extension));
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}
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}
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break;
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case "install":
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var fileName = dirName + BTCPayPluginSuffix;
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var manifestFileName = dirName + ".json";
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if (!DependenciesMet(pluginsFolder, command.extension, installed))
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return false;
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ExecuteCommand(("enable", command.extension), pluginsFolder, true, installed);
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if (File.Exists(fileName))
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{
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ZipFile.ExtractToDirectory(fileName, dirName, true);
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if (!ignoreOrder)
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{
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File.AppendAllLines(Path.Combine(pluginsFolder, "order"), new[] { command.extension });
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}
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File.Delete(fileName);
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if (File.Exists(manifestFileName))
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{
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File.Move(manifestFileName, Path.Combine(dirName, Path.GetFileName(manifestFileName)));
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}
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}
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break;
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case "disable":
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if (Directory.Exists(dirName))
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{
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if (File.Exists(Path.Combine(pluginsFolder, "disabled")))
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{
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var disabled = File.ReadAllLines(Path.Combine(pluginsFolder, "disabled"));
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if (!disabled.Contains(command.extension))
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{
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File.AppendAllLines(Path.Combine(pluginsFolder, "disabled"), new[] { command.extension });
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}
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}
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else
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{
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File.AppendAllLines(Path.Combine(pluginsFolder, "disabled"), new[] { command.extension });
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}
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}
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break;
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case "enable":
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if (File.Exists(Path.Combine(pluginsFolder, "disabled")))
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{
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var disabled = File.ReadAllLines(Path.Combine(pluginsFolder, "disabled"));
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if (disabled.Contains(command.extension))
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{
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File.WriteAllLines(Path.Combine(pluginsFolder, "disabled"), disabled.Where(s => s != command.extension));
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}
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}
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break;
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}
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return true;
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}
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public static (string command, string plugin)[] GetPendingCommands(string pluginsFolder)
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{
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if (!File.Exists(Path.Combine(pluginsFolder, "commands")))
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return Array.Empty<(string command, string plugin)>();
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var commands = File.ReadAllLines(Path.Combine(pluginsFolder, "commands"));
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return commands.Select(s =>
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{
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var split = s.Split(':');
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return (split[0].ToLower(CultureInfo.InvariantCulture), split[1]);
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}).ToArray();
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}
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public static void QueueCommands(string pluginsFolder, params (string action, string plugin)[] commands)
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{
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File.AppendAllLines(Path.Combine(pluginsFolder, "commands"),
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commands.Select((tuple) => $"{tuple.action}:{tuple.plugin}"));
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}
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public static void CancelCommands(string pluginDir, string plugin)
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{
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var cmds = GetPendingCommands(pluginDir).Where(tuple =>
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!tuple.plugin.Equals(plugin, StringComparison.InvariantCultureIgnoreCase)).ToArray();
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if (File.Exists(Path.Combine(pluginDir, plugin, BTCPayPluginSuffix)))
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{
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File.Delete(Path.Combine(pluginDir, plugin, BTCPayPluginSuffix));
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}
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if (File.Exists(Path.Combine(pluginDir, plugin, ".json")))
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{
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File.Delete(Path.Combine(pluginDir, plugin, ".json"));
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}
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File.Delete(Path.Combine(pluginDir, "commands"));
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QueueCommands(pluginDir, cmds);
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}
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public static void DisablePlugin(string pluginDir, string plugin)
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{
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QueueCommands(pluginDir, ("disable", plugin));
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}
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// Loads the list of disabled plugins from the file
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private static HashSet<string> GetDisabledPluginIdentifiers(string pluginsFolder)
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{
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var disabledPath = Path.Combine(pluginsFolder, "disabled");
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return File.Exists(disabledPath) ? File.ReadAllLines(disabledPath).ToHashSet() : [];
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}
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// List of disabled plugins with additional info, like the disabled version and its dependencies
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public static Dictionary<string, Version> GetDisabledPlugins(string pluginsFolder)
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{
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return TryGetInstalledInfo(pluginsFolder).Where(pair => pair.Value.Disabled)
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.ToDictionary(pair => pair.Key, pair => pair.Value.Item1);
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}
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public static bool DependencyMet(IBTCPayServerPlugin.PluginDependency dependency,
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Dictionary<string, Version> installed = null)
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{
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var plugin = dependency.Identifier.ToLowerInvariant();
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var versionReq = dependency.Condition;
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// ensure installed is not null and has lowercased keys for comparison
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installed = installed == null
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? new Dictionary<string, Version>()
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: installed.ToDictionary(x => x.Key.ToLowerInvariant(), x => x.Value);
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if (!installed.ContainsKey(plugin) && !versionReq.Equals("!"))
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{
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return false;
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}
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var versionConditions = versionReq.Split("||", StringSplitOptions.RemoveEmptyEntries);
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return versionConditions.Any(s =>
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{
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s = s.Trim();
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var v = s.Substring(1);
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if (s[1] == '=')
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{
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v = s.Substring(2);
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}
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var parsedV = Version.Parse(v);
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|
switch (s)
|
|
{
|
|
case { } xx when xx.StartsWith(">="):
|
|
return installed[plugin] >= parsedV;
|
|
case { } xx when xx.StartsWith("<="):
|
|
return installed[plugin] <= parsedV;
|
|
case { } xx when xx.StartsWith(">"):
|
|
return installed[plugin] > parsedV;
|
|
case { } xx when xx.StartsWith("<"):
|
|
return installed[plugin] >= parsedV;
|
|
case { } xx when xx.StartsWith("^"):
|
|
return installed[plugin] >= parsedV && installed[plugin].Major == parsedV.Major;
|
|
case { } xx when xx.StartsWith("~"):
|
|
return installed[plugin] >= parsedV && installed[plugin].Major == parsedV.Major &&
|
|
installed[plugin].Minor == parsedV.Minor;
|
|
case { } xx when xx.StartsWith("!="):
|
|
return installed[plugin] != parsedV;
|
|
case { } xx when xx.StartsWith("=="):
|
|
default:
|
|
return installed[plugin] == parsedV;
|
|
}
|
|
});
|
|
}
|
|
|
|
public static bool DependenciesMet(IEnumerable<IBTCPayServerPlugin.PluginDependency> dependencies,
|
|
Dictionary<string, Version> installed = null)
|
|
{
|
|
return dependencies.All(dependency => DependencyMet(dependency, installed));
|
|
}
|
|
}
|
|
}
|