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package main |
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import ( |
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"io/ioutil" |
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"log" |
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"net/http" |
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"os" |
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"strings" |
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"github.com/gin-gonic/gin" |
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uuid "github.com/satori/go.uuid" |
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"github.com/rfinochi/golang-workshop-todo/pkg/common" |
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) |
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func logRequestMiddleware(infoLog *log.Logger) gin.HandlerFunc { |
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return func(c *gin.Context) { |
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infoLog.Printf("%s - %s %s %s", c.Request.RemoteAddr, c.Request.Proto, c.Request.Method, c.Request.URL.RequestURI()) |
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c.Next() |
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} |
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} |
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func requestIDMiddleware() gin.HandlerFunc { |
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return func(c *gin.Context) { |
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c.Writer.Header().Set(common.APIRequestIDHeaderName, uuid.NewV4().String()) |
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c.Next() |
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} |
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} |
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func revisionMiddleware(errorLog *log.Logger) gin.HandlerFunc { |
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data, err := ioutil.ReadFile("REVISION") |
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if err != nil { |
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errorLog.Println("Revision Middleware error: ", err) |
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return func(c *gin.Context) { |
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c.Next() |
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} |
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} |
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revision := strings.TrimSpace(string(data)) |
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return func(c *gin.Context) { |
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c.Writer.Header().Set(common.APIRevisionHeaderName, revision) |
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c.Next() |
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} |
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} |
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func tokenAuthMiddleware(errorLog *log.Logger) gin.HandlerFunc { |
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requiredToken := os.Getenv(common.APITokenEnvVarName) |
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if requiredToken == "" { |
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errorLog.Fatal("Please set environment variable ", common.APITokenEnvVarName) |
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} |
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return func(c *gin.Context) { |
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if !strings.Contains(c.Request.RequestURI, "api-docs") { |
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token := c.Request.Header.Get(common.APITokenHeaderName) |
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if token == "" { |
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common.RespondError(c, http.StatusUnauthorized, "API token required") |
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return |
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} |
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if token != requiredToken { |
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common.RespondError(c, http.StatusUnauthorized, "Invalid API token (request one via e-mail to [email protected]") |
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return |
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} |
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} |
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c.Next() |
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} |
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} |
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rfinochi /
golang-workshop-todo
