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18 changed files with 148 additions and 295 deletions

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@ -3,32 +3,7 @@ type: docker
name: default
steps:
- name: static_check
image: golang:1.16
- name: test
image: golang
commands:
- go get honnef.co/go/tools/cmd/staticcheck
- staticcheck ./pkg/...
volumes:
- name: gopath
path: /go
- name: lint
image: golang:1.16
commands:
- go get golang.org/x/lint/golint
- golint -set_exit_status ./pkg/...
volumes:
- name: gopath
path: /go
- name: vet
image: golang:1.16
commands:
- go vet ./pkg/...
volumes:
- name: gopath
path: /go
volumes:
- name: gopath
temp: {}
- ls -lah

14
go.sum
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@ -2,7 +2,6 @@ github.com/andybalholm/brotli v1.0.2/go.mod h1:loMXtMfwqflxFJPmdbJO0a3KNoPuLBgiu
github.com/andybalholm/brotli v1.0.3 h1:fpcw+r1N1h0Poc1F/pHbW40cUm/lMEQslZtCkBQ0UnM=
github.com/andybalholm/brotli v1.0.3/go.mod h1:fO7iG3H7G2nSZ7m0zPUDn85XEX2GTukHGRSepvi9Eig=
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/go-redis/redis v6.15.9+incompatible h1:K0pv1D7EQUjfyoMql+r/jZqCLizCGKFlFgcHWWmHQjg=
github.com/go-redis/redis v6.15.9+incompatible/go.mod h1:NAIEuMOZ/fxfXJIrKDQDz8wamY7mA7PouImQ2Jvg6kA=
@ -12,27 +11,22 @@ github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:x
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 h1:+Z5KGCizgyZCbGh1KZqA0fcLLkwbsjIzS4aV2v7wJX0=
github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
github.com/golang/snappy v0.0.3/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
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 v0.5.6 h1:BKbKCqvP6I+rmFHt06ZmyQtvB8xAkWdhFyr0ZUNZcxQ=
github.com/google/go-cmp v0.5.6/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
github.com/klauspost/compress v1.12.2/go.mod h1:8dP1Hq4DHOhN9w426knH3Rhby4rFm6D8eO+e+Dq5Gzg=
github.com/klauspost/compress v1.13.1 h1:wXr2uRxZTJXHLly6qhJabee5JqIhTRoLBhDOA74hDEQ=
github.com/klauspost/compress v1.13.1/go.mod h1:8dP1Hq4DHOhN9w426knH3Rhby4rFm6D8eO+e+Dq5Gzg=
github.com/nxadm/tail v1.4.4 h1:DQuhQpB1tVlglWS2hLQ5OV6B5r8aGxSrPc5Qo6uTN78=
github.com/nxadm/tail v1.4.4/go.mod h1:kenIhsEOeOJmVchQTgglprH7qJGnHDVpk1VPCcaMI8A=
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 v1.15.0 h1:1V1NfVQR87RtWAgp1lv9JZJ5Jap+XFGKPi00andXGi4=
github.com/onsi/ginkgo v1.15.0/go.mod h1:hF8qUzuuC8DJGygJH3726JnCZX4MYbRB8yFfISqnKUg=
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 v1.10.5 h1:7n6FEkpFmfCoo2t+YYqXH0evK+a9ICQz0xcAy9dYcaQ=
github.com/onsi/gomega v1.10.5/go.mod h1:gza4q3jKQJijlu05nKWRCW/GavJumGt8aNRxWg7mt48=
github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6KllzawFIhcdPw=
github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
@ -52,7 +46,6 @@ golang.org/x/net v0.0.0-20200520004742-59133d7f0dd7/go.mod h1:qpuaurCH72eLCgpAm/
golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
golang.org/x/net v0.0.0-20201202161906-c7110b5ffcbb/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
golang.org/x/net v0.0.0-20210510120150-4163338589ed h1:p9UgmWI9wKpfYmgaV/IZKGdXc5qEK45tDwwwDyjS26I=
golang.org/x/net v0.0.0-20210510120150-4163338589ed/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@ -69,12 +62,10 @@ golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7w
golang.org/x/sys v0.0.0-20210112080510-489259a85091/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210514084401-e8d321eab015/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c h1:F1jZWGFhYfh0Ci55sIpILtKKK8p3i2/krTr0H1rg74I=
golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
golang.org/x/text v0.3.6 h1:aRYxNxv6iGQlyVaZmk6ZgYEDa+Jg18DxebPSrd6bg1M=
golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
@ -82,21 +73,16 @@ golang.org/x/tools v0.0.0-20201224043029-2b0845dc783e/go.mod h1:emZCQorbCU4vsT4f
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
google.golang.org/protobuf v1.23.0 h1:4MY060fB1DLGMB/7MBTLnwQUY6+F09GEiz6SsrNqyzM=
google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
gopkg.in/yaml.v2 v2.2.4/go.mod 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=

48
pkg/cache/cache.go vendored
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@ -1,48 +0,0 @@
// ___ ____ ___ ___
// \ \ / / | _ | __| \ \ / / || | __ || || _ |
// \ \/ / |___ | |__ \ \/ / || |___ || ||___|
// \ / | _ | _ | \ / || __ | || ||\\
// \/ |___ |___ | \/ || ____| || || \\
//
// Copyright (c) 2021 Piotr Biernat. https://pbiernat.dev. MIT License
// Repo: https://git.pbiernat.dev/golang/vegvisir
package cache
import (
"log"
"vegvisir/pkg/config"
)
const (
typeRedis = "redis"
typeMemory = "memory"
)
// Datastore interface
type Datastore interface {
SetKey(string, interface{}, int) error
GetKey(string) (interface{}, error)
IsConnected() bool
}
// GetCacheDatastore function
func GetCacheDatastore(config config.Cache) *Datastore {
var datastore Datastore
if config.Type == typeRedis {
datastore = NewRedisDatastore(config.Host, config.Port)
} else {
datastore = NewMemoryDatastore()
}
// fail-safe switch to memory datasource
if !datastore.IsConnected() {
log.Println("Cache server is not responding, switching to memory cache.")
datastore = NewMemoryDatastore()
}
return &datastore
}

18
pkg/cache/datastore.go vendored Normal file
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@ -0,0 +1,18 @@
// ___ ____ ___ ___
// \ \ / / | _ | __| \ \ / / || | __ || || _ |
// \ \/ / |___ | |__ \ \/ / || |___ || ||___|
// \ / | _ | _ | \ / || __ | || ||\\
// \/ |___ |___ | \/ || ____| || || \\
//
// Copyright (c) 2021 Piotr Biernat. https://pbiernat.dev. MIT License
// Repo: https://git.pbiernat.dev/golang/vegvisir
package cache
type CacheDatastore interface {
SetKey(string, interface{}, int) error
GetKey(string) (interface{}, error)
IsConnected() bool
}

View File

@ -11,44 +11,25 @@ package cache
import (
"errors"
"time"
)
// TTLItem struct
type TTLItem struct {
ts int // timestamp
ttl int // ttl in seconds
}
// NewMemoryDatastore function
func NewMemoryDatastore() *MemoryDatastore {
return &MemoryDatastore{
cache: make(map[string]interface{}),
ts: make(map[string]TTLItem),
}
}
// MemoryDatastore struct
type MemoryDatastore struct {
cache map[string]interface{}
ts map[string]TTLItem
}
// SetKey function
func (ds *MemoryDatastore) SetKey(key string, data interface{}, ttl int) error {
ds.cache[key] = data
ds.ts[key] = TTLItem{
ts: time.Now().Second(),
ttl: ttl,
}
return nil
}
// GetKey function
func (ds *MemoryDatastore) GetKey(key string) (interface{}, error) {
ds.gc(key) // remove key is time of creation is outdated
if data, ok := ds.cache[key]; ok {
return data, nil
}
@ -56,13 +37,6 @@ func (ds *MemoryDatastore) GetKey(key string) (interface{}, error) {
return nil, errors.New("Key not found" + key)
}
// IsConnected function
func (ds *MemoryDatastore) IsConnected() bool {
return true
}
func (ds *MemoryDatastore) gc(key string) {
if item, ok := ds.ts[key]; ok && item.ts < time.Now().Second()-item.ttl {
delete(ds.cache, key)
}
}

View File

@ -16,7 +16,6 @@ import (
"github.com/go-redis/redis"
)
// NewRedisDatastore function
func NewRedisDatastore(host string, port int) *RedisDatastore {
return &RedisDatastore{
client: redis.NewClient(&redis.Options{
@ -27,12 +26,10 @@ func NewRedisDatastore(host string, port int) *RedisDatastore {
}
}
// RedisDatastore class
type RedisDatastore struct {
client *redis.Client
}
// SetKey function
func (ds *RedisDatastore) SetKey(key string, data interface{}, ttl int) error {
err := ds.client.Set(key, data, time.Duration(ttl)*time.Second).Err()
if err != nil {
@ -42,7 +39,6 @@ func (ds *RedisDatastore) SetKey(key string, data interface{}, ttl int) error {
return nil
}
// GetKey function
func (ds *RedisDatastore) GetKey(key string) (interface{}, error) {
data, err := ds.client.Get(key).Result()
if err != nil {
@ -52,7 +48,6 @@ func (ds *RedisDatastore) GetKey(key string) (interface{}, error) {
return data, nil
}
// IsConnected function
func (ds *RedisDatastore) IsConnected() bool {
_, err := ds.client.Ping().Result()

16
pkg/cache/response.go vendored
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@ -14,25 +14,19 @@ import (
"log"
)
// Headers type
type Headers map[string]string
// ResponseCache struct
type ResponseCache struct {
URL string
Body string
Headers Headers
// Headers map[string]string
}
// ResponseCacheManager class
type ResponseCacheManager struct {
datastore Datastore
datastore CacheDatastore
prefix string
ttl int
}
// NewResponseCacheManager function
func NewResponseCacheManager(datastore Datastore, ttl int) ResponseCacheManager {
func NewResponseCacheManager(datastore CacheDatastore, ttl int) ResponseCacheManager {
return ResponseCacheManager{
datastore: datastore,
prefix: "response_",
@ -40,7 +34,6 @@ func NewResponseCacheManager(datastore Datastore, ttl int) ResponseCacheManager
}
}
// Save function
func (rm *ResponseCacheManager) Save(name string, r ResponseCache) bool {
if !rm.datastore.IsConnected() {
log.Println("Response-cache:", "Not connected to server")
@ -56,14 +49,13 @@ func (rm *ResponseCacheManager) Save(name string, r ResponseCache) bool {
name = rm.prefix + name
err = rm.datastore.SetKey(name, string(data), rm.ttl)
if err != nil {
log.Println("Response-cache:", err, name)
log.Println("Response-cache:", err, name) // FIXME
return false
}
return true
}
// Load function
func (rm *ResponseCacheManager) Load(name string) (bool, *ResponseCache) {
if !rm.datastore.IsConnected() {
log.Println("Response-cache:", "Not connected to server")

13
pkg/cache/route.go vendored
View File

@ -14,21 +14,18 @@ import (
"log"
)
// RouteCache struct
type RouteCache struct {
SourceURL string
TargetURL string
SourceUrl string
TargetUrl string
}
// RouteCacheManager class
type RouteCacheManager struct {
datastore Datastore
datastore CacheDatastore
prefix string
ttl int
}
// NewRouteCacheManager function
func NewRouteCacheManager(datastore Datastore, ttl int) RouteCacheManager {
func NewRouteCacheManager(datastore CacheDatastore, ttl int) RouteCacheManager {
return RouteCacheManager{
datastore: datastore,
prefix: "route_",
@ -36,7 +33,6 @@ func NewRouteCacheManager(datastore Datastore, ttl int) RouteCacheManager {
}
}
// Save function
func (rm *RouteCacheManager) Save(name string, r RouteCache) bool {
if !rm.datastore.IsConnected() {
log.Println("Route-cache:", "Not connected to server")
@ -59,7 +55,6 @@ func (rm *RouteCacheManager) Save(name string, r RouteCache) bool {
return true
}
// Load function
func (rm *RouteCacheManager) Load(name string) (bool, *RouteCache) {
if !rm.datastore.IsConnected() {
log.Println("Route-cache:", "Not connected to server")

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@ -8,19 +8,3 @@
// Repo: https://git.pbiernat.dev/golang/vegvisir
package client
import "github.com/valyala/fasthttp"
// HTTPClient struct
type HTTPClient struct {
context *fasthttp.RequestCtx
}
// NewHTTPClient function
func NewHTTPClient(ctx *fasthttp.RequestCtx) *HTTPClient {
return &HTTPClient{
context: ctx,
}
}
// func (c *HTTPClient)

10
pkg/client/tcp.go Normal file
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@ -0,0 +1,10 @@
// ___ ____ ___ ___
// \ \ / / | _ | __| \ \ / / || | __ || || _ |
// \ \/ / |___ | |__ \ \/ / || |___ || ||___|
// \ / | _ | _ | \ / || __ | || ||\\
// \/ |___ |___ | \/ || ____| || || \\
// Copyright (c) 2021 Piotr Biernat. https://pbiernat.dev. MIT License
// Repo: https://git.pbiernat.dev/golang/vegvisir
package client

View File

@ -15,61 +15,41 @@ import (
"os"
)
// Config struct
type Config struct {
Server Server
Cache Cache
Backends map[string]Backend
confPath string
}
// Server struct
type Server struct {
Address string
Port int
}
// Cache struct
type Cache struct {
Type string
Host string
Port int
Username string
Password string
Database string
RouteTTL int
ResponseTTL int
}
// Backend struct
type Backend struct {
PrefixURL string
PrefixUrl string
BackendAddress string
Protocol string
Routes []Route
}
// Route struct
type Route struct {
Pattern string
Target string
}
// DefaultRoute shorthand
var DefaultRoute = Route{
Pattern: "(.*)",
Target: "",
}
// New function
func New(confPath string) *Config {
return &Config{
confPath: confPath,
}
}
// Load function
func (c *Config) Load() error {
if _, err := os.Stat(c.confPath); err != nil {
return err

View File

@ -19,13 +19,15 @@ import (
)
var (
cPath = flag.String("c", "vegvisir.json", "Path to config file")
cFile = flag.String("c", "vegvisir.json", "Path to config file")
// for profiling...
cpuprofile = flag.String("cpuprofile", "", "write cpu profile to `file`")
memprofile = flag.String("memprofile", "", "write memory profile to `file`")
)
func main() {
flag.Parse()
// cpu profiling
if *cpuprofile != "" {
@ -40,7 +42,7 @@ func main() {
defer pprof.StopCPUProfile()
}
server.NewServer(*cPath).Run()
server.NewServer(*cFile).Run()
// memory profiling
if *memprofile != "" {

10
pkg/server/response.go Normal file
View File

@ -0,0 +1,10 @@
// ___ ____ ___ ___
// \ \ / / | _ | __| \ \ / / || | __ || || _ |
// \ \/ / |___ | |__ \ \/ / || |___ || ||___|
// \ / | _ | _ | \ / || __ | || ||\\
// \/ |___ |___ | \/ || ____| || || \\
//
// Copyright (c) 2021 Piotr Biernat. https://pbiernat.dev. MIT License
// Repo: https://git.pbiernat.dev/golang/vegvisir
package server

View File

@ -17,21 +17,18 @@ import (
"vegvisir/pkg/config"
)
// Router struct
type Router struct {
config *config.Config
rcm cache.RouteCacheManager // Redis cache
rCache map[string]cache.RouteCache // Internal route cache - TMP?
}
// Route struct
type Route struct {
SourceURL string
TargetURL string
SourceUrl string
TargetUrl string
}
// NewRouter function
func NewRouter(conf *config.Config, cacheDS cache.Datastore, ttl int) *Router {
func NewRouter(conf *config.Config, cacheDS cache.CacheDatastore, ttl int) *Router {
return &Router{
config: conf,
rcm: cache.NewRouteCacheManager(cacheDS, ttl),
@ -39,43 +36,42 @@ func NewRouter(conf *config.Config, cacheDS cache.Datastore, ttl int) *Router {
}
}
// FindByRequestURL function
func (r *Router) FindByRequestURL(url []byte) (bool, Route) {
var sURL string = string(url)
var sUrl string = string(url)
for bID := range r.config.Backends {
bck := r.config.Backends[bID]
if !strings.Contains(sURL, bck.PrefixURL) {
for bId := range r.config.Backends {
bck := r.config.Backends[bId]
if !strings.Contains(sUrl, bck.PrefixUrl) {
continue
}
for rID := range bck.Routes {
routeCfg := &bck.Routes[rID]
for rId := range bck.Routes {
routeCfg := &bck.Routes[rId]
// if ok, cRoute := s.rCacheManager.Load(sUri); ok {
// return true, cRoute
// }
if cRoute, ok := r.rCache[sURL]; ok {
if cRoute, ok := r.rCache[sUrl]; ok {
route := Route{
SourceURL: cRoute.SourceURL,
TargetURL: cRoute.TargetURL,
SourceUrl: cRoute.SourceUrl,
TargetUrl: cRoute.TargetUrl,
}
return true, route
}
rgxp := regexp.MustCompile(fmt.Sprintf("%s%s", bck.PrefixURL, routeCfg.Pattern))
rgxp := regexp.MustCompile(fmt.Sprintf("%s%s", bck.PrefixUrl, routeCfg.Pattern))
if rgxp.Match(url) {
targetURL := bck.BackendAddress + rgxp.ReplaceAllString(sURL, routeCfg.Target)
targetUrl := bck.BackendAddress + rgxp.ReplaceAllString(sUrl, routeCfg.Target)
route := Route{ // FIXME: duplicated #1
SourceURL: sURL,
TargetURL: targetURL,
route := Route{
SourceUrl: sUrl,
TargetUrl: targetUrl,
}
// s.rCacheManager.Save(sUri, cRoute)
r.rCache[sURL] = cache.RouteCache{ // FIXME: duplicated #1
SourceURL: route.SourceURL,
TargetURL: route.TargetURL,
r.rCache[sUrl] = cache.RouteCache{
SourceUrl: route.SourceUrl,
TargetUrl: route.TargetUrl,
}
return true, route

View File

@ -15,7 +15,6 @@ import (
"log"
"os"
"os/signal"
"syscall"
"time"
"vegvisir/pkg/cache"
"vegvisir/pkg/config"
@ -24,20 +23,16 @@ import (
)
const (
// ServerVersion static
ServerVersion = "0.1-dev"
// ServerName static
ServerName = "Vegvisir/" + ServerVersion
Version = "0.1-dev"
Name = "Vegvisir/" + Version
)
// Server struct
type Server struct {
config *config.Config
router *Router
respCM cache.ResponseCacheManager // Redis response cache
}
// NewServer function
func NewServer(cPath string) *Server {
config := config.New(cPath)
@ -45,16 +40,25 @@ func NewServer(cPath string) *Server {
log.Fatalln("Unable to find config file: ", cPath, err)
}
datastore := cache.GetCacheDatastore(config.Cache)
return &Server{
server := &Server{
config: config,
router: NewRouter(config, *datastore, config.Cache.RouteTTL),
respCM: cache.NewResponseCacheManager(*datastore, config.Cache.ResponseTTL),
}
redisDS := cache.NewRedisDatastore("127.0.0.1", 6379) // FIXME use config or env...
if !redisDS.IsConnected() {
log.Println("Redis server not responding, switching to memory cache...")
memDS := cache.NewMemoryDatastore()
server.router = NewRouter(config, memDS, 30) //FIXME for memory datasource ttl is useles right now...
server.respCM = cache.NewResponseCacheManager(memDS, 30) //FIXME for memory datasource ttl is useles right now...
} else {
server.router = NewRouter(config, redisDS, 30) //FIXME use ttl(seconds) from config or env...
server.respCM = cache.NewResponseCacheManager(redisDS, 30) //FIXME use ttl(seconds) from config or env...
}
return server
}
// Run function
func (s *Server) Run() {
go func() {
serverAddress := s.config.Server.Address + ":" + fmt.Sprint(s.config.Server.Port)
@ -67,7 +71,7 @@ func (s *Server) Run() {
// Wait for an interrupt
interrupt := make(chan os.Signal, 1)
signal.Notify(interrupt, os.Interrupt, syscall.SIGTERM)
signal.Notify(interrupt, os.Interrupt, os.Kill)
<-interrupt
log.Println("SIGKILL or SIGINT caught, shutting down...")
@ -80,38 +84,31 @@ func (s *Server) Run() {
log.Println("Server shutdown successfully.")
}
// Shutdown function
func (s *Server) Shutdown(ctx context.Context) { // TODO: wait for all connections to finish
log.Println("Shuting down...")
log.Println("Shuting down finished")
}
func (s *Server) mainHandler(ctx *fasthttp.RequestCtx) {
// http := client.NewHttpClient(ctx)
ctx.Response.Header.Add(fasthttp.HeaderServer, Name)
// move all below logic to concrete handler or sth....
reqURL, sReqURL, sReqMethod := ctx.RequestURI(), string(ctx.RequestURI()), string(ctx.Method())
// log.Println("Incoming request:", sReqMethod, sReqURL)
reqUrl, sReqUrl, sReqMethod := ctx.RequestURI(), string(ctx.RequestURI()), string(ctx.Method())
log.Println("Incomming request:", sReqMethod, sReqUrl)
found, route := s.router.FindByRequestURL(reqURL)
found, route := s.router.FindByRequestURL(reqUrl)
if !found {
// FIXME: return 404/5xx error in repsonse, maybe define it in Backend config?
ctx.SetStatusCode(fasthttp.StatusNotFound)
return
}
go func() {
cacheFound, data := s.respCM.Load(sReqURL)
if cacheFound { // get response from cache
// log.Println("Read resp from cache: ", route.TargetUrl)
// handle response caching
if ok, data := s.respCM.Load(sReqUrl); ok {
log.Println("Read resp from cache: ", route.TargetUrl)
// copy headers and body from cache
ctx.Response.Header.DisableNormalizing()
for key, value := range data.Headers {
ctx.Response.Header.Set(key, value)
}
ctx.SetBody([]byte(data.Body))
} else { // send request to backend and save to cache
log.Println("Send req to backend url: ", route.TargetURL)
ctx.SetBody([]byte(data.Body)) // FIXME missing headers etc...
} else {
log.Println("Send req to backend url: ", route.TargetUrl)
// prepare to send request to backend - separate
bckReq := fasthttp.AcquireRequest()
@ -120,7 +117,7 @@ func (s *Server) mainHandler(ctx *fasthttp.RequestCtx) {
defer fasthttp.ReleaseResponse(bckResp)
// copy headers from backend response and prepare request for backend - separate
bckReq.SetRequestURI(route.TargetURL)
bckReq.SetRequestURI(route.TargetUrl)
bckReq.Header.SetMethod(sReqMethod)
err := fasthttp.Do(bckReq, bckResp)
@ -129,25 +126,16 @@ func (s *Server) mainHandler(ctx *fasthttp.RequestCtx) {
return
}
headers := make(cache.Headers)
// rewrite headers from backend to gateway response
bckResp.Header.Set(fasthttp.HeaderServer, ServerName)
bckResp.Header.Del(fasthttp.HeaderXPoweredBy)
ctx.Response.Header.DisableNormalizing()
bckResp.Header.VisitAll(func(key, value []byte) {
headers[string(key)] = string(value)
ctx.Response.Header.SetBytesKV(key, value)
})
// ctx.SetStatusCode(bckResp.StatusCode())
ctx.Response.Header.SetBytesV(fasthttp.HeaderContentType, bckResp.Header.ContentType())
ctx.SetStatusCode(bckResp.StatusCode())
ctx.SetBody(bckResp.Body())
// save response to cache
respCache := cache.ResponseCache{
URL: sReqURL,
URL: sReqUrl,
Body: string(bckResp.Body()),
Headers: headers,
// Headers: []
} // FIXME: prepare resp cache struct in respCM.Save method or other service...
s.respCM.Save(sReqURL, respCache)
s.respCM.Save(sReqUrl, respCache)
}
}()
}

10
pkg/server/struct.go Normal file
View File

@ -0,0 +1,10 @@
// ___ ____ ___ ___
// \ \ / / | _ | __| \ \ / / || | __ || || _ |
// \ \/ / |___ | |__ \ \/ / || |___ || ||___|
// \ / | _ | _ | \ / || __ | || ||\\
// \/ |___ |___ | \/ || ____| || || \\
//
// Copyright (c) 2021 Piotr Biernat. https://pbiernat.dev. MIT License
// Repo: https://git.pbiernat.dev/golang/vegvisir
package server

View File

@ -5,7 +5,7 @@
},
"backends": {
"news-app": {
"prefixURL": "news/",
"prefixUrl": "news/",
"backendAddress": "http://172.17.0.1:3030",
"routes": [{
"pattern": "new/(.*)/([0-9]*)",
@ -19,7 +19,7 @@
}]
},
"article-app": {
"prefixURL": "art/",
"prefixUrl": "art/",
"backendAddress": "http://172.17.0.1:3030",
"routes": [{
"pattern": "art1/(.*)",
@ -31,13 +31,9 @@
}
},
"cache": {
"type": "redis",
"host": "localhost",
"port": 6379,
"username": "",
"password": "",
"database": "0",
"routeTTL": 10,
"responseTTL": 10
"ttl": 300,
"route_ttl": 300,
"response_ttl": 300,
"headers_ttl": 300
}
}

View File

@ -5,7 +5,7 @@
},
"backends": {
"news-app": {
"prefixURL": "news/",
"prefixUrl": "news/",
"backendAddress": "http://127.0.0.1:3030",
"routes": [{
"pattern": "new/(.*)",
@ -19,7 +19,7 @@
}]
},
"article-app": {
"prefixURL": "art/",
"prefixUrl": "art/",
"backendAddress": "http://127.0.0.1:3030",
"routes": [{
"pattern": "art1/(.*)",
@ -29,15 +29,5 @@
"target": "article-global/$1"
}]
}
},
"cache": {
"type": "redis",
"host": "localhost",
"port": 6379,
"username": "",
"password": "",
"database": "0",
"routeTTL": 300,
"responseTTL": 300
}
}