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[feature] Use ETag for robots.txt to prevent mishaps (#3829)

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* [feature] Use ETag for robots.txt to prevent mishaps

* check incoming if-none-match header
This commit is contained in:
tobi
2025-02-24 11:17:18 +01:00
committed by GitHub
parent c9de6c9a1e
commit fd670c6a27
3 changed files with 26 additions and 1 deletions
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20
internal/api/robots/robots.go
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@ -49,9 +49,29 @@ func (m *Module) Route(attachHandler func(method string, path string, f ...gin.H
}
func (m *Module) robotsGETHandler(c *gin.Context) {
const ETag = "\"" + apiutil.RobotsTxtETag + "\""
c.Header("ETag", ETag)
if c.Request.Header.Get("If-None-Match") == ETag {
// Cached.
c.AbortWithStatus(http.StatusNotModified)
return
}
// Not cached, serve.
c.String(http.StatusOK, apiutil.RobotsTxt)
}
func (m *Module) robotsGETHandlerDisallowNodeInfo(c *gin.Context) {
const ETag = "\"" + apiutil.RobotsTxtDisallowNodeInfoETag + "\""
c.Header("ETag", ETag)
if c.Request.Header.Get("If-None-Match") == ETag {
// Cached.
c.AbortWithStatus(http.StatusNotModified)
return
}
// Not cached, serve.
c.String(http.StatusOK, apiutil.RobotsTxtDisallowNodeInfo)
}