From 7748692d78e4e0047b444d6b2e21f913ea38f975 Mon Sep 17 00:00:00 2001 From: Nebulizer1213 Date: Sat, 22 Jan 2022 20:41:08 -0500 Subject: [PATCH] update --- GinRateLimit.go | 20 +++++------ README.md | 46 ++++++++++++++++++++++-- go.mod | 14 +++++--- go.sum | 93 ++++++++++++++++++++++++++++++++++++++++++++++--- redis.go | 45 ++++++++++++++++++++++++ 5 files changed, 197 insertions(+), 21 deletions(-) create mode 100644 redis.go diff --git a/GinRateLimit.go b/GinRateLimit.go index 2db14db..ed18a52 100644 --- a/GinRateLimit.go +++ b/GinRateLimit.go @@ -7,15 +7,15 @@ import ( ) type user struct { - ts int + ts int64 tokens int } -func clearInBackground(data map[string]*user, rate int, mutex *sync.Mutex) { +func clearInBackground(data map[string]*user, rate int64, mutex *sync.Mutex) { for { mutex.Lock() for k, v := range data { - if v.ts+rate <= int(time.Now().Unix()) { + if v.ts+rate <= time.Now().Unix() { delete(data, k) } } @@ -25,7 +25,7 @@ func clearInBackground(data map[string]*user, rate int, mutex *sync.Mutex) { } type InMemoryStoreType struct { - rate int + rate int64 limit int data map[string]*user mutex *sync.Mutex @@ -36,17 +36,17 @@ func (s *InMemoryStoreType) Limit(key string) bool { defer s.mutex.Unlock() _, ok := s.data[key] if !ok { - s.data[key] = &user{int(time.Now().Unix()), s.limit} + s.data[key] = &user{time.Now().Unix(), s.limit} } u := s.data[key] - if u.ts+s.rate <= int(time.Now().Unix()) { + if u.ts+s.rate <= time.Now().Unix() { u.tokens = s.limit } if u.tokens <= 0 { return true } u.tokens-- - u.ts = int(time.Now().Unix()) + u.ts = time.Now().Unix() s.data[key] = u return false } @@ -55,11 +55,11 @@ type store interface { Limit(key string) bool } -func InMemoryStore(rate int, limit int) *InMemoryStoreType { +func InMemoryStore(rate time.Duration, limit int) *InMemoryStoreType { mutex := &sync.Mutex{} data := map[string]*user{} - store := InMemoryStoreType{rate, limit, data, mutex} - go clearInBackground(data, rate, mutex) + store := InMemoryStoreType{int64(rate.Seconds()), limit, data, mutex} + go clearInBackground(data, store.rate, mutex) return &store } diff --git a/README.md b/README.md index 9e92340..8125287 100644 --- a/README.md +++ b/README.md @@ -5,8 +5,8 @@ # GinRateLimit GinRateLimit is a rate limiter for the gin framework. By default, it can -only store rate limit info in memory. If you want to store it somewhere else like redis you can make your own store or -use third party stores, similar to how express-rate-limit does it. The library is new so there are no third party stores yet, so I would appreciate if someone +only store rate limit info in memory and with redis. If you want to store it somewhere else you can make your own store +or use third party stores. The library is new so there are no third party stores yet, so I would appreciate if someone could make one. Install @@ -17,6 +17,45 @@ Install
+Redis Example + +```go +package main + +import ( + "github.com/JGLTechnologies/GinRateLimit" + "github.com/gin-gonic/gin" + "github.com/go-redis/redis/v8" + "time" +) + +func keyFunc(c *gin.Context) string { + return c.ClientIP() +} + +func errorHandler(c *gin.Context) { + c.String(429, "Too many requests") +} + +func main() { + server := gin.Default() + // This makes it so each ip can only make 5 requests per second + // The redis store is still being tested. If you experience any bugs, report it on our GitHub or make a pull request to fix it. + store := GinRateLimit.RedisStore(time.Second, 5, redis.NewClient(&redis.Options{ + ReadTimeout: time.Second, + WriteTimeout: time.Second, + IdleTimeout: time.Second * 5, + })) + mw := GinRateLimit.RateLimiter(keyFunc, errorHandler, store) + server.GET("/", mw, func(c *gin.Context) { + c.String(200, "Hello World") + }) + server.Run(":8080") +} +``` + +
+ Basic Setup ```go @@ -25,6 +64,7 @@ package main import ( "github.com/gin-gonic/gin" "github.com/JGLTechnologies/GinRateLimit" + "time" ) func keyFunc(c *gin.Context) string { @@ -38,7 +78,7 @@ func errorHandler(c *gin.Context) { func main() { server := gin.Default() // This makes it so each ip can only make 5 requests per second - store := GinRateLimit.InMemoryStore(1, 5) + store := GinRateLimit.InMemoryStore(time.Second, 5) mw := GinRateLimit.RateLimiter(keyFunc, errorHandler, store) server.GET("/", mw, func(c *gin.Context) { c.String(200, "Hello World") diff --git a/go.mod b/go.mod index 5aa64e3..0b98eba 100644 --- a/go.mod +++ b/go.mod @@ -2,14 +2,19 @@ module github.com/JGLTechnologies/GinRateLimit go 1.17 -require github.com/gin-gonic/gin v1.7.7 +require ( + github.com/gin-gonic/gin v1.7.7 + github.com/go-redis/redis/v8 v8.11.4 +) require ( + github.com/cespare/xxhash/v2 v2.1.2 // indirect + github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect github.com/gin-contrib/sse v0.1.0 // indirect github.com/go-playground/locales v0.13.0 // indirect github.com/go-playground/universal-translator v0.17.0 // indirect github.com/go-playground/validator/v10 v10.4.1 // indirect - github.com/golang/protobuf v1.3.3 // indirect + github.com/golang/protobuf v1.5.2 // indirect github.com/json-iterator/go v1.1.9 // indirect github.com/leodido/go-urn v1.2.0 // indirect github.com/mattn/go-isatty v0.0.12 // indirect @@ -17,6 +22,7 @@ require ( github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742 // indirect github.com/ugorji/go/codec v1.1.7 // indirect golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9 // indirect - golang.org/x/sys v0.0.0-20200116001909-b77594299b42 // indirect - gopkg.in/yaml.v2 v2.2.8 // indirect; indirec + golang.org/x/sys v0.0.0-20210423082822-04245dca01da // indirect + google.golang.org/protobuf v1.26.0 // indirect + gopkg.in/yaml.v2 v2.4.0 // indirect; indirec ) diff --git a/go.sum b/go.sum index 5ee9be1..058a7e8 100644 --- a/go.sum +++ b/go.sum @@ -1,6 +1,13 @@ +github.com/cespare/xxhash/v2 v2.1.2 h1:YRXhKfTDauu4ajMg1TPgFO5jnlC2HCbmLXMcTG5cbYE= +github.com/cespare/xxhash/v2 v2.1.2/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs= github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f h1:lO4WD4F/rVNCu3HqELle0jiPLLBs70cWOduZpkS1E78= +github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f/go.mod h1:cuUVRXasLTGF7a8hSLbxyZXjz+1KgoB3wDUb6vlszIc= +github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo= +github.com/fsnotify/fsnotify v1.4.9 h1:hsms1Qyu0jgnwNXIxa+/V/PDsU6CfLf6CNO8H7IWoS4= +github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ= github.com/gin-contrib/sse v0.1.0 h1:Y/yl/+YNO8GZSjAhjMsSuLt29uWRFHdHYUb5lYOV9qE= github.com/gin-contrib/sse v0.1.0/go.mod h1:RHrZQHXnP2xjPF+u1gW/2HnVO7nvIa9PG3Gm+fLHvGI= github.com/gin-gonic/gin v1.7.7 h1:3DoBmSbJbZAWqXJC3SLjAPfutPJJRN1U5pALB7EeTTs= @@ -13,9 +20,28 @@ github.com/go-playground/universal-translator v0.17.0 h1:icxd5fm+REJzpZx7ZfpaD87 github.com/go-playground/universal-translator v0.17.0/go.mod h1:UkSxE5sNxxRwHyU+Scu5vgOQjsIJAF8j9muTVoKLVtA= github.com/go-playground/validator/v10 v10.4.1 h1:pH2c5ADXtd66mxoE0Zm9SUhxE20r7aM3F26W0hOn+GE= github.com/go-playground/validator/v10 v10.4.1/go.mod h1:nlOn6nFhuKACm19sB/8EGNn9GlaMV7XkbRSipzJ0Ii4= -github.com/golang/protobuf v1.3.3 h1:gyjaxf+svBWX08ZjK86iN9geUJF0H6gp2IRKX6Nf6/I= +github.com/go-redis/redis/v8 v8.11.4 h1:kHoYkfZP6+pe04aFTnhDH6GDROa5yJdHJVNxV3F46Tg= +github.com/go-redis/redis/v8 v8.11.4/go.mod h1:2Z2wHZXdQpCDXEGzqMockDpNyYvi2l4Pxt6RJr792+w= +github.com/go-task/slim-sprig v0.0.0-20210107165309-348f09dbbbc0/go.mod h1:fyg7847qk6SyHyPtNmDHnmrv/HOrqktSC+C9fM+CJOE= +github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U= github.com/golang/protobuf v1.3.3/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw= +github.com/golang/protobuf v1.4.0-rc.1/go.mod h1:ceaxUfeHdC40wWswd/P6IGgMaK3YpKi5j83Wpe3EHw8= +github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:xKAWHe0F5eneWXFV3EuXVDTCmh+JuBKY0li0aMyXATA= +github.com/golang/protobuf v1.4.0-rc.2/go.mod h1:LlEzMj4AhA7rCAGe4KMBDvJI+AwstrUpVNzEA03Pprs= +github.com/golang/protobuf v1.4.0-rc.4.0.20200313231945-b860323f09d0/go.mod h1:WU3c8KckQ9AFe+yFwt9sWVRKCVIyN9cPHBJSNnbL67w= +github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvqG2KuDX0= +github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI= +github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk= +github.com/golang/protobuf v1.5.2 h1:ROPKBNFfQgOUMifHyP+KYbvpjbdoFNs+aK7DXlji0Tw= +github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY= +github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU= +github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU= +github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE= +github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE= +github.com/google/go-cmp v0.5.6 h1:BKbKCqvP6I+rmFHt06ZmyQtvB8xAkWdhFyr0ZUNZcxQ= +github.com/google/go-cmp v0.5.6/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE= github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg= +github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU= github.com/json-iterator/go v1.1.9 h1:9yzud/Ht36ygwatGx56VwCZtlI/2AD15T1X2sjSuGns= github.com/json-iterator/go v1.1.9/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4= github.com/leodido/go-urn v1.2.0 h1:hpXL4XnriNwQ/ABnpepYM/1vCLWNDfUNts8dX3xTG6Y= @@ -26,29 +52,88 @@ github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 h1:ZqeYNhU3OH github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q= github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742 h1:Esafd1046DLDQ0W1YjYsBW+p8U2u7vzgW2SQVmlNazg= github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0= +github.com/nxadm/tail v1.4.4/go.mod h1:kenIhsEOeOJmVchQTgglprH7qJGnHDVpk1VPCcaMI8A= +github.com/nxadm/tail v1.4.8 h1:nPr65rt6Y5JFSKQO7qToXr7pePgD6Gwiw05lkbyAQTE= +github.com/nxadm/tail v1.4.8/go.mod h1:+ncqLTQzXmGhMZNUePPaPqPvBxHAIsmXswZKocGu+AU= +github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE= +github.com/onsi/ginkgo v1.12.1/go.mod h1:zj2OWP4+oCPe1qIXoGWkgMRwljMUYCdkwsT2108oapk= +github.com/onsi/ginkgo v1.16.4 h1:29JGrr5oVBm5ulCWet69zQkzWipVXIol6ygQUe/EzNc= +github.com/onsi/ginkgo v1.16.4/go.mod h1:dX+/inL/fNMqNlz0e9LfyB9TswhZpCVdJM/Z6Vvnwo0= +github.com/onsi/gomega v1.7.1/go.mod h1:XdKZgCCFLUoM/7CFJVPcG8C1xQ1AJ0vpAezJrB7JYyY= +github.com/onsi/gomega v1.10.1/go.mod h1:iN09h71vgCQne3DLsj+A5owkum+a2tYe+TOCB1ybHNo= +github.com/onsi/gomega v1.16.0 h1:6gjqkI8iiRHMvdccRJM8rVKjCWk6ZIm6FTm3ddIe4/c= +github.com/onsi/gomega v1.16.0/go.mod h1:HnhC7FXeEQY45zxNK3PPoIUhzk/80Xly9PcubAlGdZY= github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM= github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI= -github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJyk= github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4= +github.com/stretchr/testify v1.5.1 h1:nOGnQDM7FYENwehXlg/kFVnos3rEvtKTjRvOWSzb6H4= +github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA= github.com/ugorji/go v1.1.7 h1:/68gy2h+1mWMrwZFeD1kQialdSzAb432dtpeJ42ovdo= github.com/ugorji/go v1.1.7/go.mod h1:kZn38zHttfInRq0xu/PH0az30d+z6vm202qpg1oXVMw= github.com/ugorji/go/codec v1.1.7 h1:2SvQaVZ1ouYrrKKwoSk2pzd4A9evlKJb9oTL+OaLUSs= github.com/ugorji/go/codec v1.1.7/go.mod h1:Ax+UKWsSmolVDwsd+7N3ZtXu+yMGCf907BLYF3GoBXY= +github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74= golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w= +golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9 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h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= +gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= +gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY= +gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ= diff --git a/redis.go b/redis.go new file mode 100644 index 0000000..ef85436 --- /dev/null +++ b/redis.go @@ -0,0 +1,45 @@ +package GinRateLimit + +import ( + "context" + "github.com/go-redis/redis/v8" + "time" +) + +type RedisStoreType struct { + rate int64 + limit int + client *redis.Client + ctx context.Context +} + +func (s *RedisStoreType) Limit(key string) bool { + p := s.client.Pipeline() + defer func(s *RedisStoreType, p redis.Pipeliner) { + p.Exec(s.ctx) + p.Close() + }(s, p) + ts, err := s.client.Get(s.ctx, key+"ts").Int64() + if err != nil { + ts = time.Now().Unix() + } + hits, err := s.client.Get(s.ctx, key+"hits").Int64() + if err != nil { + hits = 0 + } + p.Expire(s.ctx, key+"hits", time.Duration(int64(time.Second)*s.rate*2)) + p.Expire(s.ctx, key+"ts", time.Duration(int64(time.Second)*s.rate*2)) + if ts+s.rate <= time.Now().Unix() { + p.Set(s.ctx, key+"hits", 0, time.Duration(0)) + } + if hits >= int64(s.limit) { + return true + } + p.Incr(s.ctx, key+"hits") + p.Set(s.ctx, key+"ts", time.Now().Unix(), time.Duration(0)) + return false +} + +func RedisStore(rate time.Duration, limit int, redisClient *redis.Client) *RedisStoreType { + return &RedisStoreType{client: redisClient, rate: int64(rate.Seconds()), limit: limit, ctx: context.TODO()} +}