diff options
author | vnugent <public@vaughnnugent.com> | 2023-01-12 17:47:41 -0500 |
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committer | vnugent <public@vaughnnugent.com> | 2023-01-12 17:47:41 -0500 |
commit | ca5aba91ebf212d790b98a9364e2d54962b3f7be (patch) | |
tree | 00d5148095c656da59e033b5583edd57b40f3fea /lib/VNLib.Plugins.Extentions.TransactionalEmail/src/TransactionalEmailExtensions.cs | |
parent | 0bf1695b1685b727a251e72ba9f24a3372486c27 (diff) |
Large project reorder and consolidation
Diffstat (limited to 'lib/VNLib.Plugins.Extentions.TransactionalEmail/src/TransactionalEmailExtensions.cs')
-rw-r--r-- | lib/VNLib.Plugins.Extentions.TransactionalEmail/src/TransactionalEmailExtensions.cs | 185 |
1 files changed, 0 insertions, 185 deletions
diff --git a/lib/VNLib.Plugins.Extentions.TransactionalEmail/src/TransactionalEmailExtensions.cs b/lib/VNLib.Plugins.Extentions.TransactionalEmail/src/TransactionalEmailExtensions.cs deleted file mode 100644 index 2345f7e..0000000 --- a/lib/VNLib.Plugins.Extentions.TransactionalEmail/src/TransactionalEmailExtensions.cs +++ /dev/null @@ -1,185 +0,0 @@ -/* -* Copyright (c) 2022 Vaughn Nugent -* -* Library: VNLib -* Package: VNLib.Plugins.Extentions.TransactionalEmail -* File: TransactionalEmailExtensions.cs -* -* TransactionalEmailExtensions.cs is part of VNLib.Plugins.Extentions.TransactionalEmail which is part of the larger -* VNLib collection of libraries and utilities. -* -* VNLib.Plugins.Extentions.TransactionalEmail is free software: you can redistribute it and/or modify -* it under the terms of the GNU Affero General Public License as -* published by the Free Software Foundation, either version 3 of the -* License, or (at your option) any later version. -* -* VNLib.Plugins.Extentions.TransactionalEmail is distributed in the hope that it will be useful, -* but WITHOUT ANY WARRANTY; without even the implied warranty of -* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -* GNU Affero General Public License for more details. -* -* You should have received a copy of the GNU Affero General Public License -* along with this program. If not, see https://www.gnu.org/licenses/. -*/ - -using System.Text; -using System.Text.Json; - -using RestSharp; - -using Emails.Transactional.Client; - -using VNLib.Utils.Logging; -using VNLib.Utils.Extensions; -using VNLib.Net.Rest.Client; -using VNLib.Net.Rest.Client.OAuth2; -using VNLib.Plugins.Extensions.Loading; - - -namespace VNLib.Plugins.Extentions.TransactionalEmail -{ - /// <summary> - /// Contains extension methods for implementing templated - /// transactional emails - /// </summary> - public static class TransactionalEmailExtensions - { - public const string EMAIL_CONFIG_KEY = "emails"; - public const string REQUIRED_EMAIL_TEMPALTE_CONFIG_KEY = "required_email_templates"; - - public const uint DEFAULT_MAX_CLIENTS = 5; - public const uint DEFAULT_CLIENT_TIMEOUT_MS = 10000; - - /// <summary> - /// Gets (or loads) the ambient <see cref="TransactionalEmailConfig"/> configuration object - /// to send transactional emails against - /// </summary> - /// <param name="pbase"></param> - /// <returns>The <see cref="TransactionalEmailConfig"/> from the current plugins config</returns> - public static TransactionalEmailConfig GetEmailConfig(this PluginBase pbase) => LoadingExtensions.GetOrCreateSingleton(pbase, LoadConfig); - - /// <summary> - /// Sends an <see cref="EmailTransactionRequest"/> on the current configuration resource pool - /// </summary> - /// <param name="config"></param> - /// <param name="request">The <see cref="EmailTransactionRequest"/> request to send to the server</param> - /// <returns>A task the resolves the <see cref="TransactionResult"/> of the request</returns> - public static async Task<TransactionResult> SendEmailAsync(this TransactionalEmailConfig config, EmailTransactionRequest request) - { - //Get a new client contract from the configuration's pool assuming its a EmailSystemConfig class - using ClientContract client = ((EmailSystemConfig)config).RestClientPool.Lease(); - //Send the email and await the result before releasing the client - return await client.Resource.SendEmailAsync(request); - } - - private static TransactionalEmailConfig LoadConfig(PluginBase pbase) - { - //Get the required email config - IReadOnlyDictionary<string, JsonElement> conf = pbase.GetConfig(EMAIL_CONFIG_KEY); - - string emailFromName = conf["from_name"].GetString() ?? throw new KeyNotFoundException("Missing required configuration key 'from_name'"); - string emailFromAddress = conf["from_address"].GetString() ?? throw new KeyNotFoundException("Missing required configuration key 'from_address'"); - Uri baseServerPath = new(conf["base_url"].GetString()!, UriKind.RelativeOrAbsolute); - - //Get the token server url or use the base path if no set - Uri tokenServerBase = conf.TryGetValue("token_server_url", out JsonElement tksEl) && tksEl.GetString() != null ? - new(tksEl.GetString()!, UriKind.RelativeOrAbsolute) - : baseServerPath; - - //Get the transaction endpoint path, should be a realative path - Uri transactionEndpoint = new(conf["transaction_path"].GetString()!, UriKind.Relative); - - //Load credentials - string authEndpoint = conf["token_path"].GetString() ?? throw new KeyNotFoundException("Missing required configuration key 'token_path'"); - - //Optional user-agent - string? userAgent = conf.GetPropString("user_agent"); - - //Get optional timeout ms - int timeoutMs = (int)(conf.TryGetValue("request_timeout_ms", out JsonElement timeoutEl) ? timeoutEl.GetUInt32() : DEFAULT_CLIENT_TIMEOUT_MS); - - //Get maximum client limit - int maxClients = (int)(conf.TryGetValue("max_clients", out JsonElement mxcEl) ? mxcEl.GetUInt32() : DEFAULT_MAX_CLIENTS); - - //Load all templates from the plugin config - Dictionary<string, string> templates = pbase.PluginConfig.GetProperty(REQUIRED_EMAIL_TEMPALTE_CONFIG_KEY) - .EnumerateObject() - .ToDictionary(static jp => jp.Name, static jp => jp.Value.GetString()!); - - pbase.Log.Verbose("Required email templates {t}", templates); - - //Load oauth secrets from vault - Task<SecretResult?> oauth2ClientID = pbase.TryGetSecretAsync("email_client_id"); - Task<SecretResult?> oauth2Password = pbase.TryGetSecretAsync("email_client_secret"); - - //Lazy cred loaded, tasks should be loaded before this method will ever get called - Credential lazyCredentialGet() - { - //Load the results - SecretResult cliendId = oauth2ClientID.GetAwaiter().GetResult() ?? throw new KeyNotFoundException("Missing required oauth2 client id"); - SecretResult password = oauth2Password.GetAwaiter().GetResult() ?? throw new KeyNotFoundException("Missing required oauth2 client secret"); - - //Creat credential - return Credential.Create(cliendId.Result, password.Result); - } - - //Init client creation options - RestClientOptions poolOptions = new(baseServerPath) - { - AllowMultipleDefaultParametersWithSameName = true, - AutomaticDecompression = System.Net.DecompressionMethods.All, - PreAuthenticate = true, - Encoding = Encoding.UTF8, - MaxTimeout = timeoutMs, - UserAgent = userAgent, - //Server should not redirect - FollowRedirects = false, - }; - - //Options for auth token endpoint - RestClientOptions oAuth2ClientOptions = new(tokenServerBase) - { - AllowMultipleDefaultParametersWithSameName = true, - //Server supports compression - AutomaticDecompression = System.Net.DecompressionMethods.All, - PreAuthenticate = false, - Encoding = Encoding.UTF8, - MaxTimeout = timeoutMs, - UserAgent = userAgent, - //Server should not redirect - FollowRedirects = false - }; - - //Init Oauth authenticator - OAuth2Authenticator authenticator = new(oAuth2ClientOptions, lazyCredentialGet, authEndpoint); - - //Create client pool - RestClientPool pool = new(maxClients, poolOptions, authenticator: authenticator); - - void Cleanup() - { - authenticator.Dispose(); - pool.Dispose(); - oauth2ClientID.Dispose(); - oauth2Password.Dispose(); - } - - //register password cleanup - _ = pbase.RegisterForUnload(Cleanup); - - //Create config - EmailSystemConfig config = new () - { - EmailFromName = emailFromName, - EmailFromAddress = emailFromAddress, - RestClientPool = pool, - }; - - //Store templates and set service url - config.WithTemplates(templates) - .WithUrl(transactionEndpoint); - - return config; - } - } -}
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