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Replace raw environment variable reads with IConfiguration in backend

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Aaron Po
2026-08-22 20:26:13 -04:00
parent 9e9fc98d33
commit c514eb9814
17 changed files with 291 additions and 100 deletions
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44
web/backend/Infrastructure/Infrastructure.Sql/SqlConnectionStringHelper.cs
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@@ -1,23 +1,29 @@
using Microsoft.Data.SqlClient;
using Microsoft.Extensions.Configuration;
namespace Infrastructure.Sql;
/// <summary>
/// Helper for building SQL Server connection strings from environment variables.
/// Helper for building SQL Server connection strings from configuration
/// (backed by the <c>DB_*</c> environment variables).
/// </summary>
public static class SqlConnectionStringHelper
{
/// <summary>
/// Builds a SQL Server connection string from environment variables.
/// Builds a SQL Server connection string from configuration.
/// </summary>
/// <remarks>Throws <see cref="InvalidOperationException" /> if DB_SERVER, DB_NAME, DB_USER, or DB_PASSWORD is unset.</remarks>
/// <param name="databaseName">If null, falls back to the DB_NAME environment variable.</param>
public static string BuildConnectionString(string? databaseName = null)
/// <param name="configuration">The configuration to read the <c>DB_*</c> values from.</param>
/// <param name="databaseName">If null, falls back to the DB_NAME configuration value.</param>
public static string BuildConnectionString(
IConfiguration configuration,
string? databaseName = null
)
{
string server = Required("DB_SERVER");
string dbName = databaseName ?? Required("DB_NAME");
string user = Required("DB_USER");
string password = Required("DB_PASSWORD");
string server = Required(configuration, "DB_SERVER");
string dbName = databaseName ?? Required(configuration, "DB_NAME");
string user = Required(configuration, "DB_USER");
string password = Required(configuration, "DB_PASSWORD");
SqlConnectionStringBuilder builder = new()
{
@@ -25,7 +31,7 @@ public static class SqlConnectionStringHelper
InitialCatalog = dbName,
UserID = user,
Password = password,
TrustServerCertificate = ResolveTrustServerCertificate(),
TrustServerCertificate = ResolveTrustServerCertificate(configuration),
Encrypt = true,
};
@@ -33,29 +39,27 @@ public static class SqlConnectionStringHelper
}
/// <summary>
/// Builds a connection string to the master database using environment variables.
/// Builds a connection string to the master database using configuration.
/// </summary>
public static string BuildMasterConnectionString()
public static string BuildMasterConnectionString(IConfiguration configuration)
{
return BuildConnectionString("master");
return BuildConnectionString(configuration, "master");
}
/// <summary>
/// Resolves the <c>DB_TRUST_SERVER_CERTIFICATE</c> environment variable, defaulting to
/// Resolves the <c>DB_TRUST_SERVER_CERTIFICATE</c> configuration value, defaulting to
/// <c>true</c> when it is unset or not a valid boolean.
/// </summary>
private static bool ResolveTrustServerCertificate()
private static bool ResolveTrustServerCertificate(IConfiguration configuration)
{
return !bool.TryParse(
Environment.GetEnvironmentVariable("DB_TRUST_SERVER_CERTIFICATE"),
configuration["DB_TRUST_SERVER_CERTIFICATE"],
out bool trustServerCertificate
)
|| trustServerCertificate;
}
private static string Required(string variableName) =>
Environment.GetEnvironmentVariable(variableName)
?? throw new InvalidOperationException(
$"The {variableName} environment variable is not set."
);
private static string Required(IConfiguration configuration, string key) =>
configuration[key]
?? throw new InvalidOperationException($"The {key} environment variable is not set.");
}