resolver

package

v0.0.0-...-3cdde17 Latest Latest Go to latest Published: Apr 27, 2024 License: GPL-3.0 Imports: 13 Imported by: 0

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Repository

github.com/josexy/mini-ss

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Documentation ¶

Index ¶

type EvictCallback
type LruCache
type Option
type Record
type Resolver
- func NewDnsResolver(nameservers []string) *Resolver

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

This section is empty.

Types ¶

type EvictCallback ¶

type EvictCallback = func(key any, value any)

EvictCallback is used to get a callback when a cache entry is evicted

type LruCache ¶

type LruCache struct {
	// contains filtered or unexported fields
}

LruCache is a thread-safe, in-memory lru-cache that evicts the least recently used entries from memory when (if set) the entries are older than maxAge (in seconds). Use the New constructor to create one.

func (*LruCache) CloneTo ¶

func (c *LruCache) CloneTo(n *LruCache)

CloneTo clone and overwrite elements to another LruCache

func (*LruCache) Delete ¶

func (c *LruCache) Delete(key any)

Delete removes the value associated with a key.

func (*LruCache) Exist ¶

func (c *LruCache) Exist(key any) bool

Exist returns if key exist in cache but not put item to the head of linked list

func (*LruCache) Get ¶

func (c *LruCache) Get(key any) (any, bool)

Get returns the any representation of a cached response and a bool set to true if the key was found.

func (*LruCache) GetWithExpire ¶

func (c *LruCache) GetWithExpire(key any) (any, time.Time, bool)

GetWithExpire returns the any representation of a cached response, a time.Time Give expected expires, and a bool set to true if the key was found. This method will NOT check the maxAge of element and will NOT update the expires.

func (*LruCache) Set ¶

func (c *LruCache) Set(key any, value any)

Set stores the any representation of a response for a given key.

func (*LruCache) SetWithExpire ¶

func (c *LruCache) SetWithExpire(key any, value any, expires time.Time)

SetWithExpire stores the any representation of a response for a given key and given expires. The expires time will round to second.

type Option ¶

type Option func(*LruCache)

Option is part of Functional Options Pattern

func WithAge ¶

func WithAge(maxAge int64) Option

WithAge defined element max age (second)

func WithEvict ¶

func WithEvict(cb EvictCallback) Option

WithEvict set the evict callback

func WithSize ¶

func WithSize(maxSize int) Option

WithSize defined max length of LruCache

func WithStale ¶

func WithStale(stale bool) Option

WithStale decide whether Stale return is enabled. If this feature is enabled, element will not get Evicted according to `WithAge`.

func WithUpdateAgeOnGet ¶

func WithUpdateAgeOnGet() Option

WithUpdateAgeOnGet update expires when Get element

type Record ¶

type Record struct {
	Domain string
	RealIP netip.Addr
	FakeIP netip.Addr
	Query  *dns.Msg
	Reply  *dns.Msg
}

type Resolver ¶

type Resolver struct {
	// contains filtered or unexported fields
}

var DefaultResolver *Resolver

func NewDnsResolver ¶

func NewDnsResolver(nameservers []string) *Resolver

func (*Resolver) EnableEnhancerMode ¶

func (r *Resolver) EnableEnhancerMode(tunCIDR string)

func (Resolver) Find ¶

func (r Resolver) Find(host string) *Record

func (Resolver) FindByIP ¶

func (r Resolver) FindByIP(ip netip.Addr) *Record

func (*Resolver) IsEnhancerMode ¶

func (r *Resolver) IsEnhancerMode() bool

func (*Resolver) LookupIP ¶

func (r *Resolver) LookupIP(ctx context.Context, host string) ([]netip.Addr, error)

func (*Resolver) Query ¶

func (r *Resolver) Query(req *dns.Msg) (reply *dns.Msg, err error)

func (*Resolver) ResolveHost ¶

func (r *Resolver) ResolveHost(host string) netip.Addr

func (*Resolver) ResolveQuery ¶

func (r *Resolver) ResolveQuery(req *dns.Msg) netip.Addr

Source Files ¶

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