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3380 lines (3162 loc) · 176 KB
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using System.Buffers;
using System.Collections.Concurrent;
using System.Collections.Frozen;
using System.Data;
using System.IO.Pipelines;
using System.Net;
using System.Text;
using System.Text.Json;
using System.Text.Json.Nodes;
using Microsoft.AspNetCore.DataProtection;
using Microsoft.AspNetCore.Http.Extensions;
using Microsoft.Extensions.Primitives;
using Npgsql;
using NpgsqlRest.Auth;
using NpgsqlRest.HttpClientType;
using NpgsqlRest.UploadHandlers;
using NpgsqlRest.UploadHandlers.Handlers;
using static System.Net.Mime.MediaTypeNames;
using static NpgsqlRest.ParameterParser;
namespace NpgsqlRest;
public partial class NpgsqlRestEndpoint(
NpgsqlRestMetadataEntry entry,
FrozenDictionary<string, NpgsqlRestMetadataEntry> overloads)
{
// Signals a non-value exit from inside a cache GetOrCreateAsync factory, so the result is never
// cached and concurrent waiters observe the same outcome. NoRow → the command returned no row
// (caller maps to 500); ResponseAlreadyWritten → PrepareCommand short-circuited via
// CommandCallbackAsync and already wrote the lead caller's response (caller just returns).
private enum CacheFactoryAbortReason { NoRow, ResponseAlreadyWritten }
private sealed class CacheFactoryAbortException(CacheFactoryAbortReason reason) : Exception
{
public CacheFactoryAbortReason Reason { get; } = reason;
}
// Per-cache-key execution gates for the streaming records/sets path. That path cannot use the
// value-shaped GetOrCreateAsync factory model because it streams rows to the client and disables
// caching mid-stream once a response exceeds MaxCacheableRows. The gate serializes concurrent
// requests for the same key: the lead executes and (when within limits) populates the cache, so
// the rest get a cache hit instead of re-executing; over-limit responses simply run one-at-a-time,
// which still caps concurrent DB executions per key at one.
//
// The outer map is keyed by the cache instance itself (reference identity, so distinct cache
// profiles never share a gate even if they reuse a key string) and an inner map holds one gate per
// key. SemaphoreSlim instances are never disposed — they hold no OS handle unless AvailableWaitHandle
// is touched, and their count is bounded by (cache instances × distinct keys), bounded by the schema.
private static readonly ConcurrentDictionary<IRoutineCache, ConcurrentDictionary<string, SemaphoreSlim>> _recordCacheGates
= new(ReferenceEqualityComparer.Instance);
private static SemaphoreSlim GetRecordCacheGate(IRoutineCache cache, string key) =>
_recordCacheGates
.GetOrAdd(cache, static _ => new(StringComparer.Ordinal))
.GetOrAdd(key, static _ => new SemaphoreSlim(1, 1));
public async Task InvokeAsync(HttpContext context, IServiceProvider serviceProvider, CancellationToken cancellationToken = default)
{
Routine routine = entry.Endpoint.Routine;
RoutineEndpoint endpoint = entry.Endpoint;
IRoutineSourceParameterFormatter formatter = entry.Formatter;
string? headers = null;
if (endpoint.RequestHeadersMode == RequestHeadersMode.Context)
{
SearializeHeader(Options, context, ref headers);
}
NpgsqlConnection? connection = null;
NpgsqlTransaction? transaction = null;
string? commandText = null;
bool shouldDispose = true;
bool shouldCommit = true;
// Held (when non-null) for the streaming records/sets cache path; released in the outer finally.
SemaphoreSlim? recordCacheGate = null;
IUploadHandler? uploadHandler = null;
var shouldLog = Options.LogCommands && Logger != null;
// Pooled StringBuilders - declared at top level to enable pooling in finally block
StringBuilder? cmdLog = null;
StringBuilder? cacheKeys = null;
StringBuilder? commandTextBuilder = null;
StringBuilder? rowBuilder = null;
StringBuilder? compositeFieldBuffer = null;
// Multi-command per-iteration builders — set to null after each iteration's Return,
// so outer finally won't double-return; if iteration throws, finally still cleans up.
StringBuilder? mcRowBuilder = null;
StringBuilder? mcCompositeBuffer = null;
// proxy_out: capture function output into a buffer instead of writing to the real response
MemoryStream? proxyOutBuffer = null;
Stream? proxyOutOriginalBody = null;
if (endpoint.IsProxyOut && Options.ProxyOptions.Enabled)
{
proxyOutBuffer = new MemoryStream();
proxyOutOriginalBody = context.Response.Body;
context.Response.Body = proxyOutBuffer;
}
var writer = proxyOutBuffer is not null
? PipeWriter.Create(context.Response.Body, new StreamPipeWriterOptions(leaveOpen: true))
: PipeWriter.Create(context.Response.Body);
try
{
if (endpoint.ConnectionName is not null)
{
// First check if there's a data source for this connection name (for multi-host support)
if (Options.DataSources?.TryGetValue(endpoint.ConnectionName, out var namedDataSource) is true)
{
connection = namedDataSource.CreateConnection();
}
else if (Options.ConnectionStrings?.TryGetValue(endpoint.ConnectionName, out var connectionString) is true)
{
connection = new(connectionString);
}
else
{
await ReturnErrorAsync($"Connection name {endpoint.ConnectionName} could not be found in options DataSources or ConnectionStrings dictionaries.", true, context, cancellationToken);
return;
}
}
else if (Options.ServiceProviderMode != ServiceProviderObject.None)
{
if (serviceProvider is null)
{
await ReturnErrorAsync($"ServiceProvider must be provided when ServiceProviderMode is set to {Options.ServiceProviderMode}.", true, context, cancellationToken);
return;
}
if (Options.ServiceProviderMode == ServiceProviderObject.NpgsqlDataSource)
{
connection = serviceProvider.GetRequiredService<NpgsqlDataSource>().CreateConnection();
await connection.OpenRetryAsync(Options.ConnectionRetryOptions, cancellationToken);
}
else if (Options.ServiceProviderMode == ServiceProviderObject.NpgsqlConnection)
{
shouldDispose = false;
connection = serviceProvider.GetRequiredService<NpgsqlConnection>();
}
}
else
{
if (Options.DataSource is not null)
{
connection = Options.DataSource.CreateConnection();
}
else
{
connection = new(Options.ConnectionString);
}
}
if (connection is null)
{
await ReturnErrorAsync("Connection did not initialize!", log: true, context, cancellationToken);
return;
}
// Three reasons to attach a notice handler:
// 1. LogConnectionNoticeEvents — log every notice regardless of SSE wiring.
// 2. Endpoint publishes to broadcaster — forward matching notices to subscribers.
// 3. WarnUnboundSseNotices — and the project actually uses SSE somewhere; warn when a
// RAISE in a non-publishing endpoint matches the SSE forwarding level (a likely
// missing @sse_publish annotation).
bool noticeWarnEnabled = Options.WarnUnboundSseNotices
&& Logger != null
&& NpgsqlRestSseEventSource.HasAnySseEndpoints
&& endpoint.SsePublishEnabled is false;
if ((Options.LogConnectionNoticeEvents && Logger != null)
|| endpoint.SsePublishEnabled
|| noticeWarnEnabled)
{
var currentEndpointCaptured = endpoint;
connection.Notice += (sender, args) =>
{
if (Options.LogConnectionNoticeEvents && Logger != null)
{
NpgsqlRestLogger.LogConnectionNotice(args.Notice, Options.LogConnectionNoticeEventsMode);
}
if (currentEndpointCaptured.SsePublishEnabled
&& currentEndpointCaptured.SseEventNoticeLevel is not null
&& string.Equals(args.Notice.Severity, currentEndpointCaptured.SseEventNoticeLevel.ToString(), StringComparison.OrdinalIgnoreCase))
{
NpgsqlRestSseEventSource
.Broadcaster
.Broadcast(new SseEvent(args.Notice, currentEndpointCaptured, context.Request.Headers[Options.ExecutionIdHeaderName].FirstOrDefault()));
}
else if (noticeWarnEnabled
&& string.Equals(args.Notice.Severity, Options.DefaultSseEventNoticeLevel.ToString(), StringComparison.OrdinalIgnoreCase)
&& SseUnboundWarner.TryMarkWarned(currentEndpointCaptured.Path))
{
Logger!.UnboundSseRaise(args.Notice.Severity, currentEndpointCaptured.Path);
}
};
}
if (Options.AuthenticationOptions.BasicAuth.Enabled is true || endpoint.BasicAuth?.Enabled is true)
{
if (Options.AuthenticationOptions.BasicAuth.ChallengeCommand is not null || endpoint.BasicAuth?.ChallengeCommand is not null)
{
await OpenConnectionAsync(connection, context, endpoint, cancellationToken);
}
await BasicAuthHandler.HandleAsync(context, endpoint, connection, cancellationToken);
if (context.Response.HasStarted is true)
{
return;
}
}
await using var command = NpgsqlRestCommand.Create(connection);
if (shouldLog)
{
cmdLog = StringBuilderPool.Rent();
cmdLog.Append("-- ");
cmdLog.Append(context.Request.Method);
cmdLog.Append(' ');
if (Options.AuthenticationOptions.ObfuscateAuthParameterLogValues && endpoint.IsAuth)
{
cmdLog.Append(context.Request.Scheme);
cmdLog.Append("://");
cmdLog.Append(context.Request.Host);
cmdLog.Append(context.Request.Path);
}
else
{
cmdLog.Append(context.Request.GetDisplayUrl());
}
cmdLog.Append(Environment.NewLine);
}
if (formatter.IsFormattable is false)
{
// Use pooled StringBuilder for non-formattable commands to avoid string.Concat allocations
commandTextBuilder = StringBuilderPool.Rent(routine.Expression.Length + routine.ParamCount * 16);
commandTextBuilder.Append(routine.Expression);
}
// paramsList
bool hasNulls = false;
int paramIndex = 0;
JsonObject? jsonObj = null;
Dictionary<string, JsonNode?>? bodyDict = null;
string? body = null;
// Use IQueryCollection directly to avoid ToDictionary() allocation
IQueryCollection? queryCollection = null;
// Skip local upload handling if proxy will forward the upload content
var skipUploadForProxy = endpoint.Upload is true &&
endpoint.IsProxy &&
Options.ProxyOptions.Enabled &&
Options.ProxyOptions.ForwardUploadContent;
uploadHandler = (endpoint.Upload is true && !skipUploadForProxy) ? endpoint.CreateUploadHandler() : null;
int uploadMetaParamIndex = -1;
Dictionary<string, object?>? claimsDict = null;
List<string> customHttpTypes = Options.HttpClientOptions.Enabled ? new(routine.Parameters.Length) : null!;
if (endpoint.Cached is true)
{
var prefixLen = endpoint.CacheKeyPrefix?.Length ?? 0;
cacheKeys = StringBuilderPool.Rent(routine.Expression.Length + prefixLen + (endpoint.CachedParams?.Count ?? 0) * 32);
if (endpoint.CacheKeyPrefix is not null)
{
cacheKeys.Append(endpoint.CacheKeyPrefix);
cacheKeys.Append(NpgsqlRestParameter.GetCacheKeySeparator());
}
cacheKeys.Append(routine.Expression);
}
if (endpoint.RequestParamType == RequestParamType.QueryString)
{
queryCollection = context.Request.Query;
}
if (endpoint.HasBodyParameter || endpoint.RequestParamType == RequestParamType.BodyJson)
{
context.Request.EnableBuffering();
context.Request.Body.Position = 0;
using (var reader = new StreamReader(context.Request.Body, Encoding.UTF8, detectEncodingFromByteOrderMarks: false, leaveOpen: true))
{
body = await reader.ReadToEndAsync(cancellationToken);
}
if (endpoint.RequestParamType == RequestParamType.BodyJson)
{
JsonNode? node = null;
try
{
node = JsonNode.Parse(string.IsNullOrWhiteSpace(body) ? "{}" : body);
}
catch (JsonException e)
{
Logger?.CouldNotParseJson(body, context.Request.Path, e.Message);
node = null;
}
if (node is not null)
{
try
{
jsonObj = node?.AsObject();
bodyDict = jsonObj?.ToDictionary();
}
catch (Exception e)
{
Logger?.CouldNotParseJson(body, context.Request.Path, e.Message);
bodyDict = null;
}
}
}
}
// start query string parameters
if (endpoint.RequestParamType == RequestParamType.QueryString)
{
if (queryCollection is null)
{
shouldCommit = false;
uploadHandler?.OnError(connection, context, null);
context.Response.StatusCode = StatusCodes.Status404NotFound;
await context.Response.CompleteAsync();
return;
}
// Account for path parameters when counting query string parameters
var pathParamCount = endpoint.PathParameters?.Length ?? 0;
if (queryCollection.Count + pathParamCount != routine.ParamCount && overloads.Count > 0)
{
if (overloads.TryGetValue(string.Concat(entry.Key, queryCollection.Count + pathParamCount), out var overload))
{
routine = overload.Endpoint.Routine;
endpoint = overload.Endpoint;
formatter = overload.Formatter;
if (formatter.IsFormattable is false)
{
// Reinitialize commandTextBuilder for the new routine
commandTextBuilder?.Clear();
if (commandTextBuilder is null)
{
commandTextBuilder = StringBuilderPool.Rent(routine.Expression.Length + routine.ParamCount * 16);
}
commandTextBuilder.Append(routine.Expression);
}
}
}
for (int i = 0; i < routine.Parameters.Length; i++)
{
var parameter = routine.Parameters[i].NpgsqlRestParameterMemberwiseClone();
// Resolved parameter: skip HTTP filling, set to DBNull.Value placeholder.
// The actual value will be resolved via SQL expression after the parameter loop.
if (endpoint.ResolvedParameterExpressions is not null &&
(endpoint.ResolvedParameterExpressions.ContainsKey(parameter.ActualName) ||
endpoint.ResolvedParameterExpressions.ContainsKey(parameter.ConvertedName)))
{
parameter.Value = DBNull.Value;
if (Options.HttpClientOptions.Enabled)
{
if (parameter.TypeDescriptor.CustomType is not null)
{
if (HttpClientTypes.Definitions.ContainsKey(parameter.TypeDescriptor.CustomType))
{
customHttpTypes.Add(parameter.TypeDescriptor.CustomType);
}
}
}
if (!parameter.IsVirtual) command.Parameters.Add(parameter);
hasNulls = true;
if (formatter.IsFormattable is false)
{
if (formatter.RefContext)
{
commandTextBuilder!.Append(formatter.AppendCommandParameter(parameter, paramIndex, context));
if (context.Response.HasStarted || context.Response.StatusCode != (int)HttpStatusCode.OK)
{
return;
}
}
else
{
commandTextBuilder!.Append(formatter.AppendCommandParameter(parameter, paramIndex));
}
}
paramIndex++;
if (shouldLog && Options.LogCommandParameters)
{
cmdLog!.Append("-- $").Append(paramIndex).Append(' ')
.Append(parameter.TypeDescriptor.OriginalType)
.Append(" = (resolved)").AppendLine();
}
continue;
}
if (parameter.HashOf is not null)
{
var hashValueQueryCollection = queryCollection.TryGetValue(parameter.HashOf.ConvertedName, out var hashQsValue) ? hashQsValue.ToString() : null;
if (string.IsNullOrEmpty(hashValueQueryCollection) is true)
{
parameter.Value = DBNull.Value;
}
else
{
parameter.Value = Options.AuthenticationOptions.PasswordHasher?.HashPassword(hashValueQueryCollection) as object ?? DBNull.Value;
}
}
if (endpoint.UseUserParameters is true)
{
if (parameter.IsFromUserClaims is true && claimsDict is null)
{
claimsDict = context.User.BuildClaimsDictionary(Options.AuthenticationOptions);
}
if (parameter.IsIpAddress is true)
{
parameter.Value = context.Request.GetClientIpAddressDbParam();
}
else if (context.User?.Identity?.IsAuthenticated is true && Options.AuthenticationOptions.ParameterNameClaimsMapping.TryGetValue(parameter.ActualName, out var claimType))
{
// Claim auto-bind always wins (security routines depend on it). If the
// request also supplied a value, it would otherwise be silently dropped —
// surface that as a WARN so a parameter naming collision is visible.
if (queryCollection is not null
&& (queryCollection.ContainsKey(parameter.ConvertedName) || queryCollection.ContainsKey(parameter.ActualName)))
{
Logger?.ClaimMappedParamReceivedRequestValue(
endpoint.Path, parameter.ActualName, "query", claimType);
}
parameter.Value = claimsDict!.GetClaimDbParam(claimType);
}
else if (context.User?.Identity?.IsAuthenticated is true && parameter.IsUserClaims is true)
{
parameter.Value = claimsDict?.GetUserClaimsDbParam() ?? DBNull.Value;
}
}
if (parameter.IsUploadMetadata is true)
{
//uploadMetaParamIndex = i;
uploadMetaParamIndex = command.Parameters.Count; // the last one added
parameter.Value = DBNull.Value;
}
// body parameter
if (parameter.Value is null && endpoint.HasBodyParameter &&
(
string.Equals(endpoint.BodyParameterName, parameter.ConvertedName, StringComparison.Ordinal) ||
string.Equals(endpoint.BodyParameterName, parameter.ActualName, StringComparison.Ordinal)
)
)
{
if (body is null)
{
parameter.ParamType = ParamType.BodyParam;
parameter.Value = DBNull.Value;
hasNulls = true;
if (Options.ValidateParameters is not null)
{
Options.ValidateParameters(new ParameterValidationValues(
context,
routine,
parameter));
if (context.Response.HasStarted || context.Response.StatusCode != (int)HttpStatusCode.OK)
{
return;
}
}
if (Options.ValidateParametersAsync is not null)
{
await Options.ValidateParametersAsync(new ParameterValidationValues(
context,
routine,
parameter));
if (context.Response.HasStarted || context.Response.StatusCode != (int)HttpStatusCode.OK)
{
return;
}
}
if (endpoint.Cached is true && endpoint.CachedParams is not null)
{
if (endpoint.CachedParams.Contains(parameter.ConvertedName) || endpoint.CachedParams.Contains(parameter.ActualName))
{
cacheKeys?.Append(NpgsqlRestParameter.GetCacheKeySeparator());
cacheKeys?.Append(parameter.GetCacheStringValue());
}
}
if (Options.HttpClientOptions.Enabled)
{
if (parameter.TypeDescriptor.CustomType is not null)
{
if (HttpClientTypes.Definitions.ContainsKey(parameter.TypeDescriptor.CustomType))
{
customHttpTypes.Add(parameter.TypeDescriptor.CustomType);
}
}
}
if (!parameter.IsVirtual) command.Parameters.Add(parameter);
if (hasNulls is false && parameter.Value == DBNull.Value)
{
hasNulls = true;
}
if (formatter.IsFormattable is false)
{
if (formatter.RefContext)
{
commandTextBuilder!.Append(formatter.AppendCommandParameter(parameter, paramIndex, context));
if (context.Response.HasStarted || context.Response.StatusCode != (int)HttpStatusCode.OK)
{
return;
}
}
else
{
commandTextBuilder!.Append(formatter.AppendCommandParameter(parameter, paramIndex));
}
}
paramIndex++;
if (shouldLog && Options.LogCommandParameters)
{
var p = Options.AuthenticationOptions.ObfuscateAuthParameterLogValues && endpoint.IsAuth ?
"***" :
FormatParameterForLog(parameter);
cmdLog!.Append("-- $").Append(paramIndex).Append(' ')
.Append(parameter.TypeDescriptor.OriginalType)
.Append(" = ").AppendLine(p);
}
}
else
{
StringValues bodyStringValues = body;
if (TryParseParameter(parameter, ref bodyStringValues, endpoint.QueryStringNullHandling))
{
parameter.ParamType = ParamType.BodyParam;
hasNulls = false;
if (Options.ValidateParameters is not null)
{
Options.ValidateParameters(new ParameterValidationValues(
context,
routine,
parameter));
if (context.Response.HasStarted || context.Response.StatusCode != (int)HttpStatusCode.OK)
{
return;
}
}
if (Options.ValidateParametersAsync is not null)
{
await Options.ValidateParametersAsync(new ParameterValidationValues(
context,
routine,
parameter));
if (context.Response.HasStarted || context.Response.StatusCode != (int)HttpStatusCode.OK)
{
return;
}
}
if (endpoint.Cached is true && endpoint.CachedParams is not null)
{
if (endpoint.CachedParams.Contains(parameter.ConvertedName) || endpoint.CachedParams.Contains(parameter.ActualName))
{
cacheKeys?.Append(NpgsqlRestParameter.GetCacheKeySeparator());
cacheKeys?.Append(parameter.GetCacheStringValue());
}
}
if (Options.HttpClientOptions.Enabled)
{
if (parameter.TypeDescriptor.CustomType is not null)
{
if (HttpClientTypes.Definitions.ContainsKey(parameter.TypeDescriptor.CustomType))
{
customHttpTypes.Add(parameter.TypeDescriptor.CustomType);
}
}
}
if (!parameter.IsVirtual) command.Parameters.Add(parameter);
if (hasNulls is false && parameter.Value == DBNull.Value)
{
hasNulls = true;
}
if (formatter.IsFormattable is false)
{
if (formatter.RefContext)
{
commandTextBuilder!.Append(formatter.AppendCommandParameter(parameter, paramIndex, context));
if (context.Response.HasStarted || context.Response.StatusCode != (int)HttpStatusCode.OK)
{
return;
}
}
else
{
commandTextBuilder!.Append(formatter.AppendCommandParameter(parameter, paramIndex));
}
}
paramIndex++;
if (shouldLog && Options.LogCommandParameters)
{
var p = Options.AuthenticationOptions.ObfuscateAuthParameterLogValues && endpoint.IsAuth ?
"***" :
FormatParameterForLog(parameter);
cmdLog!.Append("-- $").Append(paramIndex).Append(' ')
.Append(parameter.TypeDescriptor.OriginalType)
.Append(" = ").AppendLine(p);
}
}
}
continue;
}
// header parameter
if (parameter.Value is null &&
endpoint.RequestHeadersMode == RequestHeadersMode.Parameter &&
parameter.TypeDescriptor.HasDefault is true &&
(
string.Equals(endpoint.RequestHeadersParameterName, parameter.ConvertedName, StringComparison.Ordinal) ||
string.Equals(endpoint.RequestHeadersParameterName, parameter.ActualName, StringComparison.Ordinal)
)
)
{
if (queryCollection.ContainsKey(parameter.ConvertedName) is false)
{
if (headers is null)
{
SearializeHeader(Options, context, ref headers);
}
parameter.ParamType = ParamType.HeaderParam;
parameter.Value = headers;
if (Options.ValidateParameters is not null)
{
Options.ValidateParameters(new ParameterValidationValues(
context,
routine,
parameter));
if (context.Response.HasStarted || context.Response.StatusCode != (int)HttpStatusCode.OK)
{
return;
}
}
if (Options.ValidateParametersAsync is not null)
{
await Options.ValidateParametersAsync(new ParameterValidationValues(
context,
routine,
parameter));
if (context.Response.HasStarted || context.Response.StatusCode != (int)HttpStatusCode.OK)
{
return;
}
}
if (endpoint.Cached is true && endpoint.CachedParams is not null)
{
if (endpoint.CachedParams.Contains(parameter.ConvertedName) || endpoint.CachedParams.Contains(parameter.ActualName))
{
cacheKeys?.Append(NpgsqlRestParameter.GetCacheKeySeparator());
cacheKeys?.Append(parameter.GetCacheStringValue());
}
}
if (Options.HttpClientOptions.Enabled)
{
if (parameter.TypeDescriptor.CustomType is not null)
{
if (HttpClientTypes.Definitions.ContainsKey(parameter.TypeDescriptor.CustomType))
{
customHttpTypes.Add(parameter.TypeDescriptor.CustomType);
}
}
}
if (!parameter.IsVirtual) command.Parameters.Add(parameter);
if (hasNulls is false && parameter.Value == DBNull.Value)
{
hasNulls = true;
}
if (formatter.IsFormattable is false)
{
if (formatter.RefContext)
{
commandTextBuilder!.Append(formatter.AppendCommandParameter(parameter, paramIndex, context));
if (context.Response.HasStarted || context.Response.StatusCode != (int)HttpStatusCode.OK)
{
return;
}
}
else
{
commandTextBuilder!.Append(formatter.AppendCommandParameter(parameter, paramIndex));
}
}
paramIndex++;
if (shouldLog && Options.LogCommandParameters)
{
var p = Options.AuthenticationOptions.ObfuscateAuthParameterLogValues && endpoint.IsAuth ?
"***" :
FormatParameterForLog(parameter);
cmdLog!.Append("-- $").Append(paramIndex).Append(' ')
.Append(parameter.TypeDescriptor.OriginalType)
.Append(" = ").AppendLine(p);
}
continue;
}
}
// path parameter - extract from RouteValues
if (parameter.Value is null && endpoint.HasPathParameters)
{
// Use optimized O(1) lookup via HashSet
string? matchedPathParam = endpoint.FindMatchingPathParameter(parameter.ConvertedName, parameter.ActualName);
// Try to get route value using the path parameter name from the template
if (matchedPathParam is not null && context.Request.RouteValues.TryGetValue(matchedPathParam, out var routeValue))
{
StringValues pathStringValues = routeValue?.ToString() ?? "";
if (TryParseParameter(parameter, ref pathStringValues, endpoint.QueryStringNullHandling))
{
parameter.ParamType = ParamType.PathParam;
parameter.QueryStringValues = pathStringValues;
if (Options.ValidateParameters is not null)
{
Options.ValidateParameters(new ParameterValidationValues(
context,
routine,
parameter));
if (context.Response.HasStarted || context.Response.StatusCode != (int)HttpStatusCode.OK)
{
return;
}
}
if (Options.ValidateParametersAsync is not null)
{
await Options.ValidateParametersAsync(new ParameterValidationValues(
context,
routine,
parameter));
if (context.Response.HasStarted || context.Response.StatusCode != (int)HttpStatusCode.OK)
{
return;
}
}
if (endpoint.Cached is true && endpoint.CachedParams is not null)
{
if (endpoint.CachedParams.Contains(parameter.ConvertedName) || endpoint.CachedParams.Contains(parameter.ActualName))
{
cacheKeys?.Append(NpgsqlRestParameter.GetCacheKeySeparator());
cacheKeys?.Append(parameter.GetCacheStringValue());
}
}
if (Options.HttpClientOptions.Enabled)
{
if (parameter.TypeDescriptor.CustomType is not null)
{
if (HttpClientTypes.Definitions.ContainsKey(parameter.TypeDescriptor.CustomType))
{
customHttpTypes.Add(parameter.TypeDescriptor.CustomType);
}
}
}
if (!parameter.IsVirtual) command.Parameters.Add(parameter);
if (hasNulls is false && parameter.Value == DBNull.Value)
{
hasNulls = true;
}
if (formatter.IsFormattable is false)
{
if (formatter.RefContext)
{
commandTextBuilder!.Append(formatter.AppendCommandParameter(parameter, paramIndex, context));
if (context.Response.HasStarted || context.Response.StatusCode != (int)HttpStatusCode.OK)
{
return;
}
}
else
{
commandTextBuilder!.Append(formatter.AppendCommandParameter(parameter, paramIndex));
}
}
paramIndex++;
if (shouldLog && Options.LogCommandParameters)
{
var p = Options.AuthenticationOptions.ObfuscateAuthParameterLogValues && endpoint.IsAuth ?
"***" :
FormatParameterForLog(parameter);
cmdLog!.Append("-- $").Append(paramIndex).Append(' ')
.Append(parameter.TypeDescriptor.OriginalType)
.Append(" = ").AppendLine(p);
}
continue;
}
}
}
if (queryCollection.TryGetValue(parameter.ConvertedName, out var qsValue) is false)
{
if (parameter.Value is null)
{
if (Options.ValidateParameters is not null)
{
Options.ValidateParameters(new ParameterValidationValues(
context,
routine,
parameter));
if (context.Response.HasStarted || context.Response.StatusCode != (int)HttpStatusCode.OK)
{
return;
}
}
if (Options.ValidateParametersAsync is not null)
{
await Options.ValidateParametersAsync(new ParameterValidationValues(
context,
routine,
parameter));
if (context.Response.HasStarted || context.Response.StatusCode != (int)HttpStatusCode.OK)
{
return;
}
}
if (parameter.Value is null)
{
if (parameter.TypeDescriptor.CustomType is not null)
{
parameter.Value = DBNull.Value;
}
else if (IsProxyResponseParameter(endpoint, parameter))
{
// Proxy response parameter - set placeholder value and fall through to add it
parameter.Value = DBNull.Value;
parameter.ParamType = ParamType.QueryString;
}
else if (parameter.TypeDescriptor.HasDefault is false)
{
shouldCommit = false;
uploadHandler?.OnError(connection, context, null);
context.Response.StatusCode = StatusCodes.Status404NotFound;
await context.Response.CompleteAsync();
return;
}
else if (parameter.DefaultValue is not null)
{
// Explicit default value (SQL file annotation) — bind it
parameter.Value = parameter.DefaultValue;
parameter.ParamType = ParamType.QueryString;
}
else
{
continue;
}
}
}
}
if (parameter.Value is null && TryParseParameter(parameter, ref qsValue, endpoint.QueryStringNullHandling) is false)
{
// Check if this is a proxy response parameter - it will be filled in later
if (IsProxyResponseParameter(endpoint, parameter))
{
parameter.Value = DBNull.Value;
parameter.ParamType = ParamType.QueryString;
// Don't skip - fall through to add the parameter
}
else if (parameter.TypeDescriptor.HasDefault is false)
{
shouldCommit = false;
uploadHandler?.OnError(connection, context, null);
context.Response.StatusCode = StatusCodes.Status404NotFound;
await context.Response.CompleteAsync();
return;
}
else if (parameter.DefaultValue is not null)
{
parameter.Value = parameter.DefaultValue;
parameter.ParamType = ParamType.QueryString;
}
else
{
continue;
}
}
parameter.ParamType = ParamType.QueryString;
parameter.QueryStringValues = qsValue;
if (Options.ValidateParameters is not null)
{
Options.ValidateParameters(new ParameterValidationValues(
context,
routine,
parameter));
if (context.Response.HasStarted || context.Response.StatusCode != (int)HttpStatusCode.OK)
{
return;
}
}
if (Options.ValidateParametersAsync is not null)
{
await Options.ValidateParametersAsync(new ParameterValidationValues(
context,
routine,
parameter));
if (context.Response.HasStarted || context.Response.StatusCode != (int)HttpStatusCode.OK)
{
return;
}
}
if (endpoint.Cached is true && endpoint.CachedParams is not null)
{
if (endpoint.CachedParams.Contains(parameter.ConvertedName) || endpoint.CachedParams.Contains(parameter.ActualName))
{
cacheKeys?.Append(NpgsqlRestParameter.GetCacheKeySeparator());
cacheKeys?.Append(parameter.GetCacheStringValue());
}
}
if (Options.HttpClientOptions.Enabled)
{
if (parameter.TypeDescriptor.CustomType is not null)
{
if (HttpClientTypes.Definitions.ContainsKey(parameter.TypeDescriptor.CustomType))
{
customHttpTypes.Add(parameter.TypeDescriptor.CustomType);
}
}
}
command.Parameters.Add(parameter);
if (hasNulls is false && parameter.Value == DBNull.Value)
{
hasNulls = true;
}
if (formatter.IsFormattable is false)
{
if (formatter.RefContext)
{
commandTextBuilder!.Append(formatter.AppendCommandParameter(parameter, paramIndex, context));
if (context.Response.HasStarted || context.Response.StatusCode != (int)HttpStatusCode.OK)
{
return;
}
}
else
{
commandTextBuilder!.Append(formatter.AppendCommandParameter(parameter, paramIndex));
}
}
paramIndex++;
if (shouldLog && Options.LogCommandParameters)
{
var p = Options.AuthenticationOptions.ObfuscateAuthParameterLogValues && endpoint.IsAuth ?
"***" :
FormatParameterForLog(parameter);
cmdLog!.Append("-- $").Append(paramIndex).Append(' ')
.Append(parameter.TypeDescriptor.OriginalType)
.Append(" = ").AppendLine(p);
}
}
// Skip query string validation for passthrough proxy endpoints - query will be forwarded as-is
if (!(endpoint.IsProxy && Options.ProxyOptions.Enabled && !endpoint.HasProxyResponseParameters))
{
foreach (var queryKey in queryCollection.Keys)
{
if (routine.ParamsHash.Contains(queryKey) is false)
{
shouldCommit = false;
uploadHandler?.OnError(connection, context, null);
context.Response.StatusCode = StatusCodes.Status404NotFound;
await context.Response.CompleteAsync();
return;
}
}
}
} // end of query string parameters
// start json body parameters
else if (endpoint.RequestParamType == RequestParamType.BodyJson)
{
if (bodyDict is null)
{
shouldCommit = false;
uploadHandler?.OnError(connection, context, null);
context.Response.StatusCode = StatusCodes.Status404NotFound;
await context.Response.CompleteAsync();
return;
}
// Account for path parameters when counting body parameters
var pathParamCount = endpoint.PathParameters?.Length ?? 0;
var expectedBodyParamCount = routine.ParamCount - pathParamCount;
if (bodyDict.Count != expectedBodyParamCount && overloads.Count > 0)
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