feature: Ssh bridge and ssh pooling

Author: dogukanoksuz

.gitignore

@@ -1,2 +1,3 @@
 .env
 tmp/
+grind.sh

app/handlers/command.go

@@ -0,0 +1,32 @@
+package handlers
+
+import (
+	"github.com/gofiber/fiber/v2"
+	"github.com/limanmys/render-engine/app/models"
+	"github.com/limanmys/render-engine/internal/bridge"
+	"github.com/limanmys/render-engine/internal/liman"
+	"github.com/limanmys/render-engine/pkg/logger"
+)
+
+func CommandRunner(c *fiber.Ctx) error {
+	if len(c.FormValue("server_id")) < 1 {
+		return logger.FiberError(fiber.StatusNotFound, "server not found")
+	}
+
+	server, err := liman.GetServer(&models.Server{ID: c.FormValue("server_id")})
+	if err != nil {
+		return err
+	}
+
+	shell, err := bridge.GetConnection(c.Locals("user_id").(string), c.FormValue("server_id"), server.IPAddress)
+	if err != nil {
+		return err
+	}
+
+	output, err := shell.Run(c.FormValue("command"))
+	if err != nil {
+		return logger.FiberError(fiber.StatusForbidden, "cannot run command")
+	}
+
+	return c.JSON(output)
+}

app/handlers/test.go

@@ -6,6 +6,6 @@ import (
 )
 
 func Install(app *fiber.App) {
-	app.Get("/credentials/:server", handlers.CredentialTest)
 	app.Post("/extensionRunner", handlers.ExtensionRunner)
+	app.Post("/commandRunner", handlers.CommandRunner)
 }

app/routes/index.go

@@ -13,20 +13,36 @@ require (
 )
 
 require (
+	github.com/Azure/go-ntlmssp v0.0.0-20211209120228-48547f28849e // indirect
+	github.com/ChrisTrenkamp/goxpath v0.0.0-20210404020558-97928f7e12b6 // indirect
 	github.com/chenzhuoyu/base64x v0.0.0-20220526154910-8bf9453eb81a // indirect
+	github.com/geoffgarside/ber v1.1.0 // indirect
+	github.com/gofrs/uuid v4.2.0+incompatible // indirect
+	github.com/hashicorp/go-uuid v1.0.2 // indirect
+	github.com/jcmturner/aescts/v2 v2.0.0 // indirect
+	github.com/jcmturner/dnsutils/v2 v2.0.0 // indirect
+	github.com/jcmturner/gofork v1.0.0 // indirect
+	github.com/jcmturner/goidentity/v6 v6.0.1 // indirect
+	github.com/jcmturner/gokrb5/v8 v8.4.2 // indirect
+	github.com/jcmturner/rpc/v2 v2.0.3 // indirect
 	github.com/klauspost/cpuid/v2 v2.1.1 // indirect
+	github.com/kr/fs v0.1.0 // indirect
+	github.com/masterzen/simplexml v0.0.0-20190410153822-31eea3082786 // indirect
 	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
 	go.uber.org/atomic v1.10.0 // indirect
 	go.uber.org/multierr v1.8.0 // indirect
 	go.uber.org/zap v1.23.0 // indirect
 	golang.org/x/arch v0.0.0-20220823144127-ada1728cebaa // indirect
+	golang.org/x/net v0.0.0-20220225172249-27dd8689420f // indirect
 )
 
 require (
+	github.com/acarl005/stripansi v0.0.0-20180116102854-5a71ef0e047d
 	github.com/alessio/shellescape v1.4.1
 	github.com/andybalholm/brotli v1.0.4 // indirect
 	github.com/go-sql-driver/mysql v1.6.0 // indirect
 	github.com/gofiber/storage/memory v0.0.0-20220901081010-6c53e5e46eee
+	github.com/hirochachacha/go-smb2 v1.1.0
 	github.com/jackc/chunkreader/v2 v2.0.1 // indirect
 	github.com/jackc/pgconn v1.13.0 // indirect
 	github.com/jackc/pgio v1.0.0 // indirect
@@ -38,7 +54,9 @@ require (
 	github.com/jinzhu/inflection v1.0.0 // indirect
 	github.com/jinzhu/now v1.1.5 // indirect
 	github.com/klauspost/compress v1.15.9 // indirect
+	github.com/masterzen/winrm v0.0.0-20220513085036-69f69afcd9e9
 	github.com/mervick/aes-everywhere/go/aes256 v0.0.0-20220722115308-bf92805fe805
+	github.com/pkg/sftp v1.13.5
 	github.com/valyala/bytebufferpool v1.0.0 // indirect
 	github.com/valyala/fasthttp v1.39.0 // indirect
 	github.com/valyala/tcplisten v1.0.0 // indirect

go.mod

@@ -1,6 +1,12 @@
+github.com/Azure/go-ntlmssp v0.0.0-20211209120228-48547f28849e h1:ZU22z/2YRFLyf/P4ZwUYSdNCWsMEI0VeyrFoI2rAhJQ=
+github.com/Azure/go-ntlmssp v0.0.0-20211209120228-48547f28849e/go.mod h1:chxPXzSsl7ZWRAuOIE23GDNzjWuZquvFlgA8xmpunjU=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/ChrisTrenkamp/goxpath v0.0.0-20210404020558-97928f7e12b6 h1:w0E0fgc1YafGEh5cROhlROMWXiNoZqApk2PDN0M1+Ns=
+github.com/ChrisTrenkamp/goxpath v0.0.0-20210404020558-97928f7e12b6/go.mod h1:nuWgzSkT5PnyOd+272uUmV0dnAnAn42Mk7PiQC5VzN4=
 github.com/Masterminds/semver/v3 v3.1.1 h1:hLg3sBzpNErnxhQtUy/mmLR2I9foDujNK030IGemrRc=
 github.com/Masterminds/semver/v3 v3.1.1/go.mod h1:VPu/7SZ7ePZ3QOrcuXROw5FAcLl4a0cBrbBpGY/8hQs=
+github.com/acarl005/stripansi v0.0.0-20180116102854-5a71ef0e047d h1:licZJFw2RwpHMqeKTCYkitsPqHNxTmd4SNR5r94FGM8=
+github.com/acarl005/stripansi v0.0.0-20180116102854-5a71ef0e047d/go.mod h1:asat636LX7Bqt5lYEZ27JNDcqxfjdBQuJ/MM4CN/Lzo=
 github.com/alessio/shellescape v1.4.1 h1:V7yhSDDn8LP4lc4jS8pFkt0zCnzVJlG5JXy9BVKJUX0=
 github.com/alessio/shellescape v1.4.1/go.mod h1:PZAiSCk0LJaZkiCSkPv8qIobYglO3FPpyFjDCtHLS30=
 github.com/andybalholm/brotli v1.0.4 h1:V7DdXeJtZscaqfNuAdSRuRFzuiKlHSC/Zh3zl9qY3JY=
@@ -18,6 +24,8 @@ github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7Do
 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/geoffgarside/ber v1.1.0 h1:qTmFG4jJbwiSzSXoNJeHcOprVzZ8Ulde2Rrrifu5U9w=
+github.com/geoffgarside/ber v1.1.0/go.mod h1:jVPKeCbj6MvQZhwLYsGwaGI52oUorHoHKNecGT85ZCc=
 github.com/go-kit/log v0.1.0/go.mod h1:zbhenjAZHb184qTLMA9ZjW7ThYL0H2mk7Q6pNt4vbaY=
 github.com/go-logfmt/logfmt v0.5.0/go.mod h1:wCYkCAKZfumFQihp8CzCvQ3paCTfi41vtzG1KdI/P7A=
 github.com/go-sql-driver/mysql v1.6.0 h1:BCTh4TKNUYmOmMUcQ3IipzF5prigylS7XXjEkfCHuOE=
@@ -35,10 +43,19 @@ github.com/gofiber/storage/memory v0.0.0-20220901081010-6c53e5e46eee/go.mod h1:7
 github.com/gofiber/utils v0.1.2/go.mod h1:pacRFtghAE3UoknMOUiXh2Io/nLWSUHtQCi/3QASsOc=
 github.com/gofrs/uuid v4.0.0+incompatible h1:1SD/1F5pU8p29ybwgQSwpQk+mwdRrXCYuPhW6m+TnJw=
 github.com/gofrs/uuid v4.0.0+incompatible/go.mod h1:b2aQJv3Z4Fp6yNu3cdSllBxTCLRxnplIgP/c0N/04lM=
+github.com/gofrs/uuid v4.2.0+incompatible h1:yyYWMnhkhrKwwr8gAOcOCYxOOscHgDS9yZgBrnJfGa0=
+github.com/gofrs/uuid v4.2.0+incompatible/go.mod h1:b2aQJv3Z4Fp6yNu3cdSllBxTCLRxnplIgP/c0N/04lM=
+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/google/renameio v0.1.0/go.mod h1:KWCgfxg9yswjAJkECMjeO8J8rahYeXnNhOm40UhjYkI=
 github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
 github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/gorilla/securecookie v1.1.1/go.mod h1:ra0sb63/xPlUeL+yeDciTfxMRAA+MP+HVt/4epWDjd4=
+github.com/gorilla/sessions v1.2.1/go.mod h1:dk2InVEVJ0sfLlnXv9EAgkf6ecYs/i80K/zI+bUmuGM=
+github.com/hashicorp/go-uuid v1.0.2 h1:cfejS+Tpcp13yd5nYHWDI6qVCny6wyX2Mt5SGur2IGE=
+github.com/hashicorp/go-uuid v1.0.2/go.mod h1:6SBZvOh/SIDV7/2o3Jml5SYk/TvGqwFJ/bN7x4byOro=
+github.com/hirochachacha/go-smb2 v1.1.0 h1:b6hs9qKIql9eVXAiN0M2wSFY5xnhbHAQoCwRKbaRTZI=
+github.com/hirochachacha/go-smb2 v1.1.0/go.mod h1:8F1A4d5EZzrGu5R7PU163UcMRDJQl4FtcxjBfsY8TZE=
 github.com/jackc/chunkreader v1.0.0 h1:4s39bBR8ByfqH+DKm8rQA3E1LHZWB9XWcrz8fqaZbe0=
 github.com/jackc/chunkreader v1.0.0/go.mod h1:RT6O25fNZIuasFJRyZ4R/Y2BbhasbmZXF9QQ7T3kePo=
 github.com/jackc/chunkreader/v2 v2.0.0/go.mod h1:odVSm741yZoC3dpHEUXIqA9tQRhFrgOHwnPIn9lDKlk=
@@ -108,6 +125,18 @@ github.com/jackc/puddle v1.1.3/go.mod h1:m4B5Dj62Y0fbyuIc15OsIqK0+JU8nkqQjsgx7dv
 github.com/jackc/puddle v1.2.0/go.mod h1:m4B5Dj62Y0fbyuIc15OsIqK0+JU8nkqQjsgx7dvjSWk=
 github.com/jackc/puddle v1.2.1/go.mod h1:m4B5Dj62Y0fbyuIc15OsIqK0+JU8nkqQjsgx7dvjSWk=
 github.com/jackc/puddle v1.3.0/go.mod h1:m4B5Dj62Y0fbyuIc15OsIqK0+JU8nkqQjsgx7dvjSWk=
+github.com/jcmturner/aescts/v2 v2.0.0 h1:9YKLH6ey7H4eDBXW8khjYslgyqG2xZikXP0EQFKrle8=
+github.com/jcmturner/aescts/v2 v2.0.0/go.mod h1:AiaICIRyfYg35RUkr8yESTqvSy7csK90qZ5xfvvsoNs=
+github.com/jcmturner/dnsutils/v2 v2.0.0 h1:lltnkeZGL0wILNvrNiVCR6Ro5PGU/SeBvVO/8c/iPbo=
+github.com/jcmturner/dnsutils/v2 v2.0.0/go.mod h1:b0TnjGOvI/n42bZa+hmXL+kFJZsFT7G4t3HTlQ184QM=
+github.com/jcmturner/gofork v1.0.0 h1:J7uCkflzTEhUZ64xqKnkDxq3kzc96ajM1Gli5ktUem8=
+github.com/jcmturner/gofork v1.0.0/go.mod h1:MK8+TM0La+2rjBD4jE12Kj1pCCxK7d2LK/UM3ncEo0o=
+github.com/jcmturner/goidentity/v6 v6.0.1 h1:VKnZd2oEIMorCTsFBnJWbExfNN7yZr3EhJAxwOkZg6o=
+github.com/jcmturner/goidentity/v6 v6.0.1/go.mod h1:X1YW3bgtvwAXju7V3LCIMpY0Gbxyjn/mY9zx4tFonSg=
+github.com/jcmturner/gokrb5/v8 v8.4.2 h1:6ZIM6b/JJN0X8UM43ZOM6Z4SJzla+a/u7scXFJzodkA=
+github.com/jcmturner/gokrb5/v8 v8.4.2/go.mod h1:sb+Xq/fTY5yktf/VxLsE3wlfPqQjp0aWNYyvBVK62bc=
+github.com/jcmturner/rpc/v2 v2.0.3 h1:7FXXj8Ti1IaVFpSAziCZWNzbNuZmnvw/i6CqLNdWfZY=
+github.com/jcmturner/rpc/v2 v2.0.3/go.mod h1:VUJYCIDm3PVOEHw8sgt091/20OJjskO/YJki3ELg/Hc=
 github.com/jinzhu/inflection v1.0.0 h1:K317FqzuhWc8YvSVlFMCCUb36O/S9MCKRDI7QkRKD/E=
 github.com/jinzhu/inflection v1.0.0/go.mod h1:h+uFLlag+Qp1Va5pdKtLDYj+kHp5pxUVkryuEj+Srlc=
 github.com/jinzhu/now v1.1.4/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/z8=
@@ -127,6 +156,8 @@ github.com/klauspost/cpuid/v2 v2.1.1 h1:t0wUqjowdm8ezddV5k0tLWVklVuvLJpoHeb4WBdy
 github.com/klauspost/cpuid/v2 v2.1.1/go.mod h1:RVVoqg1df56z8g3pUjL/3lE5UfnlrJX8tyFgg4nqhuY=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
 github.com/konsorten/go-windows-terminal-sequences v1.0.2/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
+github.com/kr/fs v0.1.0 h1:Jskdu9ieNAYnjxsi0LbQp1ulIKZV1LAFgK1tWhpZgl8=
+github.com/kr/fs v0.1.0/go.mod h1:FFnZGqtBN9Gxj7eW1uZ42v5BccTP0vu6NEaFoC2HwRg=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/pty v1.1.8/go.mod h1:O1sed60cT9XZ5uDucP5qwvh+TE3NnUj51EiZO/lmSfw=
@@ -136,6 +167,10 @@ github.com/lib/pq v1.1.0/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
 github.com/lib/pq v1.2.0/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
 github.com/lib/pq v1.10.2 h1:AqzbZs4ZoCBp+GtejcpCpcxM3zlSMx29dXbUSeVtJb8=
 github.com/lib/pq v1.10.2/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
+github.com/masterzen/simplexml v0.0.0-20190410153822-31eea3082786 h1:2ZKn+w/BJeL43sCxI2jhPLRv73oVVOjEKZjKkflyqxg=
+github.com/masterzen/simplexml v0.0.0-20190410153822-31eea3082786/go.mod h1:kCEbxUJlNDEBNbdQMkPSp6yaKcRXVI6f4ddk8Riv4bc=
+github.com/masterzen/winrm v0.0.0-20220513085036-69f69afcd9e9 h1:DhrKMJR75+SJf7pb/mPjiF527ftzAw/91QeNS/HX8cg=
+github.com/masterzen/winrm v0.0.0-20220513085036-69f69afcd9e9/go.mod h1:Iju3u6NzoTAvjuhsGCZc+7fReNnr/Bd6DsWj3WTokIU=
 github.com/mattn/go-colorable v0.1.1/go.mod h1:FuOcm+DKB9mbwrcAfNl7/TZVBZ6rcnceauSikq3lYCQ=
 github.com/mattn/go-colorable v0.1.6/go.mod h1:u6P/XSegPjTcexA+o6vUJrdnUu04hMope9wVRipJSqc=
 github.com/mattn/go-isatty v0.0.5/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
@@ -147,6 +182,8 @@ github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJ
 github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk=
 github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
+github.com/pkg/sftp v1.13.5 h1:a3RLUqkyjYRtBTZJZ1VRrKbN3zhuPLlUc3sphVz81go=
+github.com/pkg/sftp v1.13.5/go.mod h1:wHDZ0IZX6JcBYRK1TH9bcVq8G7TLpVHYIGJRFnmPfxg=
 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/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4=
@@ -167,6 +204,7 @@ github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXf
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
+github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
@@ -216,10 +254,13 @@ golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8U
 golang.org/x/crypto v0.0.0-20190820162420-60c769a6c586/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
+golang.org/x/crypto v0.0.0-20200728195943-123391ffb6de/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
+golang.org/x/crypto v0.0.0-20201112155050-0c6587e931a9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20201203163018-be400aefbc4c/go.mod h1:jdWPYTVW3xRLrWPugEBEK3UY2ZEsg3UU495nc5E+M+I=
 golang.org/x/crypto v0.0.0-20210616213533-5ff15b29337e/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
+golang.org/x/crypto v0.0.0-20211215153901-e495a2d5b3d3/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
 golang.org/x/crypto v0.0.0-20220214200702-86341886e292 h1:f+lwQ+GtmgoY+A2YaQxlSOnDjXcQ7ZRLWOHbC6HtRqE=
 golang.org/x/crypto v0.0.0-20220214200702-86341886e292/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
 golang.org/x/crypto v0.0.0-20220321153916-2c7772ba3064 h1:S25/rfnfsMVgORT4/J61MJ7rdyseOZOyvLIrZEZ7s6s=
@@ -236,8 +277,11 @@ golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20190813141303-74dc4d7220e7/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/net v0.0.0-20200114155413-6afb5195e5aa/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
 golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
+golang.org/x/net v0.0.0-20211216030914-fe4d6282115f/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
+golang.org/x/net v0.0.0-20220225172249-27dd8689420f h1:oA4XRj0qtSt8Yo1Zms0CUlsT3KG69V2UGQWPBxujDmc=
 golang.org/x/net v0.0.0-20220225172249-27dd8689420f/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
@@ -284,6 +328,7 @@ golang.org/x/xerrors v0.0.0-20190410155217-1f06c39b4373/go.mod h1:I/5z698sn9Ka8T
 golang.org/x/xerrors v0.0.0-20190513163551-3ee3066db522/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 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/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=

go.sum

@@ -0,0 +1,21 @@
+package bridge
+
+import (
+	"time"
+)
+
+func Clean() {
+	now := time.Now()
+	for key, session := range Connections {
+		if now.Sub(session.LastConnection).Seconds() > 266 {
+			session.Mutex.Lock()
+			session.CloseAllConnections()
+			session.Mutex.Unlock()
+
+			Connections.Delete(key)
+			continue
+		}
+	}
+	time.Sleep(time.Second)
+	go Clean()
+}

internal/bridge/clean.go

@@ -0,0 +1,31 @@
+package bridge
+
+import (
+	"errors"
+	"sync"
+)
+
+type Pool map[string]*Session
+
+var (
+	Connections Pool = make(Pool)
+	mutex       sync.Mutex
+)
+
+func (p *Pool) Get(userID string, serverID string) (*Session, error) {
+	if conn, ok := Connections[userID+serverID]; ok {
+		return conn, nil
+	} else {
+		return nil, errors.New("connection does not exist")
+	}
+}
+
+func (p *Pool) Set(userID string, serverID string, session *Session) {
+	Connections[userID+serverID] = session
+}
+
+func (p *Pool) Delete(key string) {
+	mutex.Lock()
+	defer mutex.Unlock()
+	delete(Connections, key)
+}

internal/bridge/connection.go

@@ -0,0 +1,50 @@
+package bridge
+
+import (
+	"time"
+
+	"github.com/gofiber/fiber/v2"
+	"github.com/limanmys/render-engine/app/models"
+	"github.com/limanmys/render-engine/internal/liman"
+	"github.com/limanmys/render-engine/pkg/logger"
+)
+
+func GetConnection(userID string, serverID string, host string) (*Session, error) {
+	session, err := Connections.Get(userID, serverID)
+	if err != nil {
+		session = &Session{}
+		isConnected := session.CreateShell(userID, serverID, host)
+		if !isConnected {
+			return nil, logger.FiberError(fiber.StatusForbidden, "cannot connect to server")
+		}
+		Connections.Set(userID, serverID, session)
+	}
+
+	session.LastConnection = time.Now()
+	return session, nil
+}
+
+func (s *Session) CreateShell(userID string, serverID string, host string) bool {
+	credentials, err := liman.GetCredentials(&models.User{ID: userID}, &models.Server{ID: serverID})
+	if err != nil {
+		return false
+	}
+
+	s.Username = credentials.Username
+	s.password = credentials.Key
+	s.IpAddr = host
+	s.Port = credentials.Port
+	s.LastConnection = time.Now()
+
+	if credentials.Type == "ssh" {
+		conn, err := InitShellWithPassword(s.Username, s.password, s.IpAddr, s.Port)
+		if err != nil {
+			return false
+		}
+		s.SSH = conn
+	} else {
+		return false
+	}
+
+	return true
+}