35 lines
1.2 KiB
Go
35 lines
1.2 KiB
Go
package server
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import (
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"net/http"
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"github.com/gin-gonic/gin"
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"github.com/photoprism/photoprism/internal/config"
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"github.com/photoprism/photoprism/pkg/header"
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)
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// Static is a middleware that adds static content-related headers to the server's response.
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var Static = func(conf *config.Config) gin.HandlerFunc {
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return func(c *gin.Context) {
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// Allow caching of static assets for up to 7 days.
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header.SetCacheControlImmutable(c, 0, true)
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// Allow CORS based on the configuration or otherwise automatically for certain file types when using a CDN.
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// See: https://www.w3.org/TR/css-fonts-3/#font-fetching-requirements
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if origin := conf.CORSOrigin(); origin != "" || header.AllowCORS(c.Request.URL.Path) && conf.UseCdn() {
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if origin == "" {
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c.Header(header.AccessControlAllowOrigin, header.Any)
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} else {
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c.Header(header.AccessControlAllowOrigin, origin)
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}
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// Add additional information to preflight OPTION requests.
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if c.Request.Method == http.MethodOptions {
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c.Header(header.AccessControlAllowHeaders, conf.CORSHeaders())
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c.Header(header.AccessControlAllowMethods, conf.CORSMethods())
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c.Header(header.AccessControlMaxAge, header.DefaultAccessControlMaxAge)
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}
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}
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}
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}
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