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39 lines
1.5 KiB
Go
39 lines
1.5 KiB
Go
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// Copyright 2017 Gerasimos Maropoulos, ΓΜ. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package client
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import (
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"github.com/kataras/iris/cache/cfg"
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"github.com/kataras/iris/cache/client/rule"
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"github.com/kataras/iris/cache/ruleset"
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"github.com/kataras/iris/context"
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)
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// DefaultRuleSet is a list of the default pre-cache validators
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// which exists in ALL handlers, local and remote.
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var DefaultRuleSet = rule.Chained(
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// #1 A shared cache MUST NOT use a cached response to a request with an
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// Authorization header field
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rule.HeaderClaim(ruleset.AuthorizationRule),
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// #2 "must-revalidate" and/or
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// "s-maxage" response directives are not allowed to be served stale
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// (Section 4.2.4) by shared caches. In particular, a response with
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// either "max-age=0, must-revalidate" or "s-maxage=0" cannot be used to
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// satisfy a subsequent request without revalidating it on the origin
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// server.
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rule.HeaderClaim(ruleset.MustRevalidateRule),
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rule.HeaderClaim(ruleset.ZeroMaxAgeRule),
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// #3 custom No-Cache header used inside this library
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// for BOTH request and response (after get-cache action)
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rule.Header(ruleset.NoCacheRule, ruleset.NoCacheRule),
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)
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// NoCache called when a particular handler is not valid for cache.
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// If this function called inside a handler then the handler is not cached
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// even if it's surrounded with the Cache/CacheFunc wrappers.
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func NoCache(ctx context.Context) {
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ctx.Header(cfg.NoCacheHeader, "true")
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}
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