From 7455bd65c0698e9a7975fd9fb072de6beb126e89 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C5=81ukasz=20Magiera?= <magik6k@gmail.com>
Date: Tue, 18 Sep 2018 04:30:33 +0200
Subject: [PATCH] resolve cmd: use coreapi
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License: MIT
Signed-off-by: Łukasz Magiera <magik6k@gmail.com>


This commit was moved from ipfs/interface-go-ipfs-core@c3053e816481188f8b20f1d56c3cfa648d4f39c8

This commit was moved from ipfs/boxo@28fe139695b6494eb257aca0d7e21741497a640a
---
 core/coreiface/options/name.go | 43 +++++++++++++++++++++++++++-------
 1 file changed, 34 insertions(+), 9 deletions(-)

diff --git a/core/coreiface/options/name.go b/core/coreiface/options/name.go
index 48aecf18b..9ba4a8770 100644
--- a/core/coreiface/options/name.go
+++ b/core/coreiface/options/name.go
@@ -14,9 +14,12 @@ type NamePublishSettings struct {
 }
 
 type NameResolveSettings struct {
-	Recursive bool
-	Local     bool
-	Cache     bool
+	Depth int
+	Local bool
+	Cache bool
+
+	DhtRecordCount int
+	DhtTimeout     time.Duration
 }
 
 type NamePublishOption func(*NamePublishSettings) error
@@ -40,9 +43,12 @@ func NamePublishOptions(opts ...NamePublishOption) (*NamePublishSettings, error)
 
 func NameResolveOptions(opts ...NameResolveOption) (*NameResolveSettings, error) {
 	options := &NameResolveSettings{
-		Recursive: false,
-		Local:     false,
-		Cache:     true,
+		Depth: 1,
+		Local: false,
+		Cache: true,
+
+		DhtRecordCount: 16,
+		DhtTimeout:     time.Minute,
 	}
 
 	for _, opt := range opts {
@@ -80,11 +86,11 @@ func (nameOpts) Key(key string) NamePublishOption {
 	}
 }
 
-// Recursive is an option for Name.Resolve which specifies whether to perform a
+// Depth is an option for Name.Resolve which specifies the maximum depth of a
 // recursive lookup. Default value is false
-func (nameOpts) Recursive(recursive bool) NameResolveOption {
+func (nameOpts) Depth(depth int) NameResolveOption {
 	return func(settings *NameResolveSettings) error {
-		settings.Recursive = recursive
+		settings.Depth = depth
 		return nil
 	}
 }
@@ -106,3 +112,22 @@ func (nameOpts) Cache(cache bool) NameResolveOption {
 		return nil
 	}
 }
+
+// DhtRecordCount is an option for Name.Resolve which specifies how many records
+// we want to validate before selecting the best one (newest). Note that setting
+// this value too low will have security implications
+func (nameOpts) DhtRecordCount(rc int) NameResolveOption {
+	return func(settings *NameResolveSettings) error {
+		settings.DhtRecordCount = rc
+		return nil
+	}
+}
+
+// DhtTimeout is an option for Name.Resolve which specifies timeout for
+// DHT lookup
+func (nameOpts) DhtTimeout(timeout time.Duration) NameResolveOption {
+	return func(settings *NameResolveSettings) error {
+		settings.DhtTimeout = timeout
+		return nil
+	}
+}