52 lines
979 B
Go
52 lines
979 B
Go
package cache
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import (
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"fmt"
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"github.com/drone/drone/model"
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"github.com/gin-gonic/gin"
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)
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const permKey = "perm"
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// Perms is a middleware function that attempts to cache the
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// user's remote rempository permissions (ie in GitHub) to minimize
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// remote calls that might be expensive, slow or rate-limited.
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func Perms(c *gin.Context) {
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var (
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owner = c.Param("owner")
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name = c.Param("name")
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user, _ = c.Get("user")
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)
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if user == nil {
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c.Next()
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return
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}
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key := fmt.Sprintf("perm/%s/%s/%s",
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user.(*model.User).Login,
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owner,
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name,
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)
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// if the item already exists in the cache
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// we can continue the middleware chain and
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// exit afterwards.
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v, _ := get(key)
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if v != nil {
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c.Set("perm", v)
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c.Next()
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return
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}
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// otherwise, if the item isn't cached we execute
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// the middleware chain and then cache the permissions
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// after the request is processed.
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c.Next()
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perm, ok := c.Get("perm")
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if ok {
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set(key, perm, 86400) // 24 hours
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}
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}
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