diff --git a/.editorconfig b/.editorconfig new file mode 100644 index 0000000..eb7ac61 --- /dev/null +++ b/.editorconfig @@ -0,0 +1,16 @@ + +root = true + +[*] +charset = utf-8 + +end_of_line = LF +insert_final_newline = true +trim_trailing_whitespace = true + +indent_style = space +indent_size = 2 + +[{*.go,go.mod}] +indent_style = tab +indent_size = 8 \ No newline at end of file diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml new file mode 100644 index 0000000..3509871 --- /dev/null +++ b/.github/workflows/go.yml @@ -0,0 +1,40 @@ +name: Go + +on: + push: + branches: [main] + pull_request: + branches: [main] + +permissions: + pull-requests: write + contents: write + +jobs: + build: + name: build + runs-on: ubuntu-latest + steps: + - uses: actions/checkout@v3 + + - name: Set up Go + uses: actions/setup-go@v3 + with: + go-version: "1.18" + + - name: Build + run: go build -v ./... + + - name: golangci-lint + uses: golangci/golangci-lint-action@v3 + with: + version: "v1.50.0" + + - name: Run coverage + run: go test -v -race -coverprofile=coverage.out -covermode=atomic ./... + + - name: Upload coverage to Codecov + uses: codecov/codecov-action@v3 + with: + token: ${{ secrets.CODECOV_TOKEN }} + file: ./coverage.out diff --git a/api/index.go b/api/index.go new file mode 100644 index 0000000..791e620 --- /dev/null +++ b/api/index.go @@ -0,0 +1,36 @@ +// Package api serves as the entrypoint for the serverless API using the Vercel Go Runtime. +// +// # Vercel Go Runtime +// +// Vercel automatically attaches an endpoint based on the filename and folder structure much like a +// typical web framework, such that api/index.go will be attached to '.vercel.app/api/'. +// Within the api folder, any go source files, with names not beginning in '_', and including an +// exported function that matches the http.HandlerFunc signature will be handled as entrypoints. +// +// # Config +// +// The vercel.json file in the root of the project should include a 'rewrites' section to forward +// all requests to this file. This allows the use of an external router/mux to handle all /api/*. +// +// "rewrites": [ +// { +// "source": "/api/(.*)", +// "destination": "/api/index.go" +// } +// ] +// +// # Reference +// +// https://github.com/vercel/vercel/tree/main/packages/go +package api + +import ( + "net/http" + + "github.com/cybercapsicum/cycap/internal/app" +) + +// Handler is exposed as the entrypoint for the serverless function. +func Handler(w http.ResponseWriter, r *http.Request) { + app.Router.ServeHTTP(w, r) +} diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..7b7fb28 --- /dev/null +++ b/go.mod @@ -0,0 +1,35 @@ +module github.com/cybercapsicum/cycap + +go 1.18 + +require ( + github.com/getkin/kin-openapi v0.106.0 + github.com/gin-gonic/gin v1.8.1 +) + +require ( + github.com/gin-contrib/sse v0.1.0 // indirect + github.com/go-openapi/jsonpointer v0.19.5 // indirect + github.com/go-openapi/swag v0.19.5 // indirect + github.com/go-playground/locales v0.14.0 // indirect + github.com/go-playground/universal-translator v0.18.0 // indirect + github.com/go-playground/validator/v10 v10.10.0 // indirect + github.com/goccy/go-json v0.9.7 // indirect + github.com/invopop/yaml v0.1.0 // indirect + github.com/json-iterator/go v1.1.12 // indirect + github.com/leodido/go-urn v1.2.1 // indirect + github.com/mailru/easyjson v0.0.0-20190626092158-b2ccc519800e // indirect + github.com/mattn/go-isatty v0.0.14 // indirect + github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 // indirect + github.com/modern-go/reflect2 v1.0.2 // indirect + github.com/mohae/deepcopy v0.0.0-20170929034955-c48cc78d4826 // indirect + github.com/pelletier/go-toml/v2 v2.0.1 // indirect + github.com/ugorji/go/codec v1.2.7 // indirect + golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97 // indirect + golang.org/x/net v0.0.0-20210226172049-e18ecbb05110 // indirect + golang.org/x/sys v0.0.0-20210806184541-e5e7981a1069 // indirect + golang.org/x/text v0.3.6 // indirect + google.golang.org/protobuf v1.28.0 // indirect + gopkg.in/yaml.v2 v2.4.0 // indirect + gopkg.in/yaml.v3 v3.0.1 // indirect +) diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..f24ff20 --- /dev/null +++ b/go.sum @@ -0,0 +1,104 @@ +github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E= +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/getkin/kin-openapi v0.106.0 h1:hrqfqJPAvWvuO/V0lCr/xyQOq4Gy21mcr28JJOSRcEI= +github.com/getkin/kin-openapi v0.106.0/go.mod h1:9Dhr+FasATJZjS4iOLvB0hkaxgYdulrNYm2e9epLWOo= +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 v1.8.1 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h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA= +gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= diff --git a/internal/app/app.go b/internal/app/app.go new file mode 100644 index 0000000..3d80f60 --- /dev/null +++ b/internal/app/app.go @@ -0,0 +1,80 @@ +// Package app is the main +package app + +import ( + "net/http" + "os" + "strings" + + "github.com/cybercapsicum/cycap/internal/pkg/api" + "github.com/getkin/kin-openapi/openapi3" + "github.com/gin-gonic/gin" +) + +var ( + Router *gin.Engine + App *openapi3.T +) + +func serverFromEnv() (server *openapi3.Server) { + var ( + serverURL = os.Getenv("VERCEL_URL") + serverDesc = os.Getenv("VERCEL_ENV") + ) + + server = &openapi3.Server{ + URL: serverURL + "/api", + Description: strings.Title(serverDesc), + } + + return +} + +func newApp() (app *openapi3.T) { + app = &openapi3.T{ + OpenAPI: "3.0.2", + } + + app.Info = &openapi3.Info{ + Title: "cycap", + Description: "A serverless API for various Cybersecurity utilities", + License: &openapi3.License{ + Name: "BSD-3-Clause", + }, + Version: "0.1.0", + } + + app.Servers = append(app.Servers, serverFromEnv()) + + return +} + +func index(c *gin.Context) { + if App == nil { + api.ErrNotFound.Responder(c.Writer) + return + } + + data, _ := App.MarshalJSON() + api.DataResponse(data).Responder(c.Writer, http.StatusOK) +} + +func ping(c *gin.Context) { + resp := &api.MsgResponse{ + StatusCode: http.StatusOK, + Message: "pong", + } + resp.Responder(c.Writer) +} + +func addApiRoutes(r *gin.RouterGroup) { + r.GET("/", index) + r.GET("/ping", ping) +} + +func init() { + App = newApp() + Router = gin.Default() + + addApiRoutes(Router.Group("/api")) +} diff --git a/internal/pkg/api/api.go b/internal/pkg/api/api.go new file mode 100644 index 0000000..2214d97 --- /dev/null +++ b/internal/pkg/api/api.go @@ -0,0 +1,67 @@ +package api + +import ( + "encoding/json" + "net/http" +) + +type MsgResponse struct { + StatusCode int `json:"-"` + Message string `json:"message"` +} + +type DataResponse []byte + +var ( + ErrInternal = &MsgResponse{ + StatusCode: http.StatusInternalServerError, + Message: "internal error", + } + + ErrNotFound = &MsgResponse{ + StatusCode: http.StatusNotFound, + Message: "not found", + } + + ErrNotAllowed = &MsgResponse{ + StatusCode: http.StatusMethodNotAllowed, + Message: "method not allowed", + } + + ErrUnauthorized = &MsgResponse{ + StatusCode: http.StatusUnauthorized, + Message: "unauthorized", + } +) + +func (m *MsgResponse) Data() (resp DataResponse) { + resp, _ = json.Marshal(m) + return +} + +func (d DataResponse) Responder(w http.ResponseWriter, statusCode int) { + w.WriteHeader(statusCode) + w.Header().Add("Content-Type", "application/json; charset=utf-8") + + _, err := w.Write(d) + if err != nil { + w.WriteHeader(http.StatusInternalServerError) + } +} + +func (m *MsgResponse) Responder(w http.ResponseWriter) { + m.Data().Responder(w, m.StatusCode) +} + +func (m *MsgResponse) Handler(w http.ResponseWriter, r *http.Request) { + m.Data().Responder(w, m.StatusCode) +} + +func JSONResponder(w http.ResponseWriter, statusCode int, obj interface{}) { + resp, err := json.Marshal(obj) + if err != nil { + ErrInternal.Responder(w) + } + + DataResponse(resp).Responder(w, statusCode) +} diff --git a/vercel.json b/vercel.json new file mode 100644 index 0000000..045889f --- /dev/null +++ b/vercel.json @@ -0,0 +1,20 @@ + +{ + "$schema": "https://openapi.vercel.sh/vercel.json", + "functions": { + "api/index.go": { + "memory": 512, + "maxDuration": 3 + } + }, + "github": { + "silent": true, + "autoJobCancelation": true + }, + "rewrites": [ + { + "source": "/api/(.*)", + "destination": "/api/index.go" + } + ] +} diff --git a/web/index.html b/web/index.html new file mode 100644 index 0000000..e69de29