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61b4043775
Updates #5685. Squashed commit of the following: commit 5312147abfa0914c896acbf1e88f8c8f1af90f2b Author: Ainar Garipov <A.Garipov@AdGuard.COM> Date: Thu Apr 6 14:09:44 2023 +0300 safesearch: imp tests, logs commit 298b5d24ce292c5f83ebe33d1e92329e4b3c1acc Author: Ainar Garipov <A.Garipov@AdGuard.COM> Date: Wed Apr 5 20:36:16 2023 +0300 safesearch: fix filters, logging commit 63d6ca5d694d45705473f2f0410e9e0b49cf7346 Author: Ainar Garipov <A.Garipov@AdGuard.COM> Date: Wed Apr 5 20:24:47 2023 +0300 all: dry; fix logs commit fdbf2f364fd0484b47b3161bf6f4581856fdf47b Author: Ainar Garipov <A.Garipov@AdGuard.COM> Date: Wed Apr 5 20:01:08 2023 +0300 all: fix safe search update
60 lines
1.8 KiB
Go
60 lines
1.8 KiB
Go
package filtering
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import "github.com/miekg/dns"
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// SafeSearch interface describes a service for search engines hosts rewrites.
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type SafeSearch interface {
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// CheckHost checks host with safe search filter. CheckHost must be safe
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// for concurrent use. qtype must be either [dns.TypeA] or [dns.TypeAAAA].
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CheckHost(host string, qtype uint16) (res Result, err error)
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// Update updates the configuration of the safe search filter. Update must
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// be safe for concurrent use. An implementation of Update may ignore some
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// fields, but it must document which.
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Update(conf SafeSearchConfig) (err error)
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}
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// SafeSearchConfig is a struct with safe search related settings.
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type SafeSearchConfig struct {
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// CustomResolver is the resolver used by safe search.
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CustomResolver Resolver `yaml:"-" json:"-"`
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// Enabled indicates if safe search is enabled entirely.
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Enabled bool `yaml:"enabled" json:"enabled"`
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// Services flags. Each flag indicates if the corresponding service is
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// enabled or disabled.
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Bing bool `yaml:"bing" json:"bing"`
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DuckDuckGo bool `yaml:"duckduckgo" json:"duckduckgo"`
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Google bool `yaml:"google" json:"google"`
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Pixabay bool `yaml:"pixabay" json:"pixabay"`
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Yandex bool `yaml:"yandex" json:"yandex"`
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YouTube bool `yaml:"youtube" json:"youtube"`
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}
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// checkSafeSearch checks host with safe search engine. Matches
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// [hostChecker.check].
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func (d *DNSFilter) checkSafeSearch(
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host string,
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qtype uint16,
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setts *Settings,
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) (res Result, err error) {
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if !setts.ProtectionEnabled ||
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!setts.SafeSearchEnabled ||
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(qtype != dns.TypeA && qtype != dns.TypeAAAA) {
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return Result{}, nil
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}
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if d.safeSearch == nil {
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return Result{}, nil
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}
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clientSafeSearch := setts.ClientSafeSearch
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if clientSafeSearch != nil {
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return clientSafeSearch.CheckHost(host, qtype)
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}
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return d.safeSearch.CheckHost(host, qtype)
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}
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