49 lines
1.5 KiB
Go
49 lines
1.5 KiB
Go
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package middleware
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import (
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"net/http"
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"time"
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"github.com/gin-gonic/gin"
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)
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// NoCache is a middleware function that appends headers
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// to prevent the client from caching the HTTP response.
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func NoCache(c *gin.Context) {
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c.Header("Cache-Control", "no-cache, no-store, max-age=0, must-revalidate, value")
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c.Header("Expires", "Thu, 01 Jan 1970 00:00:00 GMT")
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c.Header("Last-Modified", time.Now().UTC().Format(http.TimeFormat))
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c.Next()
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}
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// Options is a middleware function that appends headers
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// for options requests and aborts then exits the middleware
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// chain and ends the request.
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func Options(c *gin.Context) {
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if c.Request.Method != "OPTIONS" {
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c.Next()
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} else {
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c.Header("Access-Control-Allow-Origin", "*")
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c.Header("Access-Control-Allow-Methods", "GET,POST,PUT,PATCH,DELETE,OPTIONS")
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c.Header("Access-Control-Allow-Headers", "authorization, origin, content-type, accept")
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c.Header("Allow", "HEAD,GET,POST,PUT,PATCH,DELETE,OPTIONS")
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c.Header("Content-Type", "application/json")
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c.AbortWithStatus(200)
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}
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}
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// Secure is a middleware function that appends security
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// and resource access headers.
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func Secure(c *gin.Context) {
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c.Header("Access-Control-Allow-Origin", "*")
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//c.Header("X-Frame-Options", "DENY")
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c.Header("X-Content-Type-Options", "nosniff")
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c.Header("X-XSS-Protection", "1; mode=block")
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if c.Request.TLS != nil {
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c.Header("Strict-Transport-Security", "max-age=31536000")
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}
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// Also consider adding Content-Security-Policy headers
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// c.Header("Content-Security-Policy", "script-src 'self' https://cdnjs.cloudflare.com")
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}
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