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API backend -- implement ability to turn toggle all protection in one go, helpful to temporarily disable all kinds of filtering

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This commit is contained in:
Eugene Bujak 2018-10-10 20:13:03 +03:00
parent c3df81bb8d
commit 413228e6ec
3 changed files with 91 additions and 215 deletions
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6
config.go
View File

@ -35,6 +35,7 @@ type coreDNSConfig struct {
coreFile string
FilterFile string `yaml:"-"`
Port int `yaml:"port"`
ProtectionEnabled bool `yaml:"protection_enabled"`
FilteringEnabled bool `yaml:"filtering_enabled"`
SafeBrowsingEnabled bool `yaml:"safebrowsing_enabled"`
SafeSearchEnabled bool `yaml:"safesearch_enabled"`
@ -69,6 +70,7 @@ var config = configuration{
binaryFile: "coredns", // only filename, no path
coreFile: "Corefile", // only filename, no path
FilterFile: "dnsfilter.txt", // only filename, no path
ProtectionEnabled: true,
FilteringEnabled: true,
SafeBrowsingEnabled: false,
BlockedResponseTTL: 60, // in seconds
@ -165,13 +167,13 @@ func writeAllConfigs() error {
}
const coreDNSConfigTemplate = `. {
dnsfilter {{if .FilteringEnabled}}{{.FilterFile}}{{end}} {
{{if .ProtectionEnabled}}dnsfilter {{if .FilteringEnabled}}{{.FilterFile}}{{end}} {
{{if .SafeBrowsingEnabled}}safebrowsing{{end}}
{{if .ParentalEnabled}}parental {{.ParentalSensitivity}}{{end}}
{{if .SafeSearchEnabled}}safesearch{{end}}
{{if .QueryLogEnabled}}querylog{{end}}
blocked_ttl {{.BlockedResponseTTL}}
}
}{{end}}
{{.Pprof}}
hosts {
fallthrough

272
control.go
View File

@ -75,6 +75,26 @@ func writeAllConfigsAndReloadCoreDNS() error {
return nil
}
func httpUpdateConfigReloadDNSReturnOK(w http.ResponseWriter, r *http.Request) {
err := writeAllConfigsAndReloadCoreDNS()
if err != nil {
errortext := fmt.Sprintf("Couldn't write config file: %s", err)
log.Println(errortext)
http.Error(w, errortext, http.StatusInternalServerError)
return
}
returnOK(w, r)
}
func returnOK(w http.ResponseWriter, r *http.Request) {
_, err := fmt.Fprintf(w, "OK\n")
if err != nil {
errortext := fmt.Sprintf("Couldn't write body: %s", err)
log.Println(errortext)
http.Error(w, errortext, http.StatusInternalServerError)
}
}
func isRunning() bool {
if coreDNSCommand != nil && coreDNSCommand.Process != nil {
pid := coreDNSCommand.Process.Pid
@ -197,12 +217,13 @@ func handleRestart(w http.ResponseWriter, r *http.Request) {
func handleStatus(w http.ResponseWriter, r *http.Request) {
data := map[string]interface{}{
"running": isRunning(),
"version": VersionString,
"dns_address": config.BindHost,
"dns_port": config.CoreDNS.Port,
"querylog_enabled": config.CoreDNS.QueryLogEnabled,
"upstream_dns": config.CoreDNS.UpstreamDNS,
"dns_address": config.BindHost,
"dns_port": config.CoreDNS.Port,
"protection_enabled": config.CoreDNS.ProtectionEnabled,
"querylog_enabled": config.CoreDNS.QueryLogEnabled,
"running": isRunning(),
"upstream_dns": config.CoreDNS.UpstreamDNS,
"version": VersionString,
}
json, err := json.Marshal(data)
@ -222,6 +243,16 @@ func handleStatus(w http.ResponseWriter, r *http.Request) {
}
}
func handleProtectionEnable(w http.ResponseWriter, r *http.Request) {
config.CoreDNS.ProtectionEnabled = true
httpUpdateConfigReloadDNSReturnOK(w, r)
}
func handleProtectionDisable(w http.ResponseWriter, r *http.Request) {
config.CoreDNS.ProtectionEnabled = false
httpUpdateConfigReloadDNSReturnOK(w, r)
}
// -----
// stats
// -----
@ -330,37 +361,12 @@ func handleQueryLog(w http.ResponseWriter, r *http.Request) {
func handleQueryLogEnable(w http.ResponseWriter, r *http.Request) {
config.CoreDNS.QueryLogEnabled = true
err := writeAllConfigsAndReloadCoreDNS()
if err != nil {
errortext := fmt.Sprintf("Couldn't write config file: %s", err)
log.Println(errortext)
http.Error(w, errortext, http.StatusInternalServerError)
return
}
_, err = fmt.Fprintf(w, "OK\n")
if err != nil {
errortext := fmt.Sprintf("Couldn't write body: %s", err)
log.Println(errortext)
http.Error(w, errortext, http.StatusInternalServerError)
}
httpUpdateConfigReloadDNSReturnOK(w, r)
}
func handleQueryLogDisable(w http.ResponseWriter, r *http.Request) {
config.CoreDNS.QueryLogEnabled = false
err := writeAllConfigsAndReloadCoreDNS()
if err != nil {
errortext := fmt.Sprintf("Couldn't write config file: %s", err)
log.Println(errortext)
http.Error(w, errortext, http.StatusInternalServerError)
return
}
_, err = fmt.Fprintf(w, "OK\n")
if err != nil {
errortext := fmt.Sprintf("Couldn't write body: %s", err)
log.Println(errortext)
http.Error(w, errortext, http.StatusInternalServerError)
}
httpUpdateConfigReloadDNSReturnOK(w, r)
}
func handleStatsReset(w http.ResponseWriter, r *http.Request) {
@ -662,38 +668,12 @@ func handleGetVersionJSON(w http.ResponseWriter, r *http.Request) {
func handleFilteringEnable(w http.ResponseWriter, r *http.Request) {
config.CoreDNS.FilteringEnabled = true
err := writeAllConfigsAndReloadCoreDNS()
if err != nil {
errortext := fmt.Sprintf("Couldn't write config file: %s", err)
log.Println(errortext)
http.Error(w, errortext, http.StatusInternalServerError)
return
}
_, err = fmt.Fprintf(w, "OK\n")
if err != nil {
errortext := fmt.Sprintf("Couldn't write body: %s", err)
log.Println(errortext)
http.Error(w, errortext, http.StatusInternalServerError)
}
httpUpdateConfigReloadDNSReturnOK(w, r)
}
func handleFilteringDisable(w http.ResponseWriter, r *http.Request) {
config.CoreDNS.FilteringEnabled = false
err := writeAllConfigsAndReloadCoreDNS()
if err != nil {
errortext := fmt.Sprintf("Couldn't write config file: %s", err)
log.Println(errortext)
http.Error(w, errortext, http.StatusInternalServerError)
return
}
_, err = fmt.Fprintf(w, "OK\n")
if err != nil {
errortext := fmt.Sprintf("Couldn't write body: %s", err)
log.Println(errortext)
http.Error(w, errortext, http.StatusInternalServerError)
}
httpUpdateConfigReloadDNSReturnOK(w, r)
}
func handleFilteringStatus(w http.ResponseWriter, r *http.Request) {
@ -832,13 +812,6 @@ func handleFilteringRemoveURL(w http.ResponseWriter, r *http.Request) {
}
}
config.Filters = newFilters
err = writeAllConfigs()
if err != nil {
errortext := fmt.Sprintf("Couldn't write config file: %s", err)
log.Println(errortext)
http.Error(w, errortext, http.StatusInternalServerError)
return
}
err = writeFilterFile()
if err != nil {
errortext := fmt.Sprintf("Couldn't write filter file: %s", err)
@ -846,14 +819,7 @@ func handleFilteringRemoveURL(w http.ResponseWriter, r *http.Request) {
http.Error(w, errortext, http.StatusInternalServerError)
return
}
tellCoreDNSToReload()
_, err = fmt.Fprintf(w, "OK\n")
if err != nil {
errortext := fmt.Sprintf("Couldn't write body: %s", err)
log.Println(errortext)
http.Error(w, errortext, http.StatusInternalServerError)
}
httpUpdateConfigReloadDNSReturnOK(w, r)
}
func handleFilteringEnableURL(w http.ResponseWriter, r *http.Request) {
@ -890,14 +856,6 @@ func handleFilteringEnableURL(w http.ResponseWriter, r *http.Request) {
return
}
err = writeAllConfigs()
if err != nil {
errortext := fmt.Sprintf("Couldn't write config file: %s", err)
log.Println(errortext)
http.Error(w, errortext, http.StatusInternalServerError)
return
}
// kick off refresh of rules from new URLs
refreshFiltersIfNeccessary()
err = writeFilterFile()
@ -907,14 +865,7 @@ func handleFilteringEnableURL(w http.ResponseWriter, r *http.Request) {
http.Error(w, errortext, http.StatusInternalServerError)
return
}
tellCoreDNSToReload()
_, err = fmt.Fprintf(w, "OK\n")
if err != nil {
errortext := fmt.Sprintf("Couldn't write body: %s", err)
log.Println(errortext)
http.Error(w, errortext, http.StatusInternalServerError)
}
httpUpdateConfigReloadDNSReturnOK(w, r)
}
func handleFilteringDisableURL(w http.ResponseWriter, r *http.Request) {
@ -951,13 +902,6 @@ func handleFilteringDisableURL(w http.ResponseWriter, r *http.Request) {
return
}
err = writeAllConfigs()
if err != nil {
errortext := fmt.Sprintf("Couldn't write config file: %s", err)
log.Println(errortext)
http.Error(w, errortext, http.StatusInternalServerError)
return
}
err = writeFilterFile()
if err != nil {
errortext := fmt.Sprintf("Couldn't write filter file: %s", err)
@ -965,15 +909,7 @@ func handleFilteringDisableURL(w http.ResponseWriter, r *http.Request) {
http.Error(w, errortext, http.StatusInternalServerError)
return
}
tellCoreDNSToReload()
_, err = fmt.Fprintf(w, "OK\n")
if err != nil {
errortext := fmt.Sprintf("Couldn't write body: %s", err)
log.Println(errortext)
http.Error(w, errortext, http.StatusInternalServerError)
}
// TODO: regenerate coredns config and tell coredns to reload it if it's running
httpUpdateConfigReloadDNSReturnOK(w, r)
}
func handleFilteringSetRules(w http.ResponseWriter, r *http.Request) {
@ -986,13 +922,6 @@ func handleFilteringSetRules(w http.ResponseWriter, r *http.Request) {
}
config.UserRules = strings.Split(string(body), "\n")
err = writeAllConfigs()
if err != nil {
errortext := fmt.Sprintf("Couldn't write config file: %s", err)
log.Println(errortext)
http.Error(w, errortext, http.StatusInternalServerError)
return
}
err = writeFilterFile()
if err != nil {
errortext := fmt.Sprintf("Couldn't write filter file: %s", err)
@ -1000,14 +929,7 @@ func handleFilteringSetRules(w http.ResponseWriter, r *http.Request) {
http.Error(w, errortext, http.StatusInternalServerError)
return
}
tellCoreDNSToReload()
_, err = fmt.Fprintf(w, "OK\n")
if err != nil {
errortext := fmt.Sprintf("Couldn't write body: %s", err)
log.Println(errortext)
http.Error(w, errortext, http.StatusInternalServerError)
}
httpUpdateConfigReloadDNSReturnOK(w, r)
}
func handleFilteringRefresh(w http.ResponseWriter, r *http.Request) {
@ -1184,38 +1106,12 @@ func writeFilterFile() error {
func handleSafeBrowsingEnable(w http.ResponseWriter, r *http.Request) {
config.CoreDNS.SafeBrowsingEnabled = true
err := writeAllConfigsAndReloadCoreDNS()
if err != nil {
errortext := fmt.Sprintf("Couldn't write config file: %s", err)
log.Println(errortext)
http.Error(w, errortext, http.StatusInternalServerError)
return
}
_, err = fmt.Fprintf(w, "OK\n")
if err != nil {
errortext := fmt.Sprintf("Couldn't write body: %s", err)
log.Println(errortext)
http.Error(w, errortext, http.StatusInternalServerError)
}
httpUpdateConfigReloadDNSReturnOK(w, r)
}
func handleSafeBrowsingDisable(w http.ResponseWriter, r *http.Request) {
config.CoreDNS.SafeBrowsingEnabled = false
err := writeAllConfigsAndReloadCoreDNS()
if err != nil {
errortext := fmt.Sprintf("Couldn't write config file: %s", err)
log.Println(errortext)
http.Error(w, errortext, http.StatusInternalServerError)
return
}
_, err = fmt.Fprintf(w, "OK\n")
if err != nil {
errortext := fmt.Sprintf("Couldn't write body: %s", err)
log.Println(errortext)
http.Error(w, errortext, http.StatusInternalServerError)
}
httpUpdateConfigReloadDNSReturnOK(w, r)
}
func handleSafeBrowsingStatus(w http.ResponseWriter, r *http.Request) {
@ -1285,38 +1181,12 @@ func handleParentalEnable(w http.ResponseWriter, r *http.Request) {
}
config.CoreDNS.ParentalSensitivity = i
config.CoreDNS.ParentalEnabled = true
err = writeAllConfigsAndReloadCoreDNS()
if err != nil {
errortext := fmt.Sprintf("Couldn't write config file: %s", err)
log.Println(errortext)
http.Error(w, errortext, http.StatusInternalServerError)
return
}
_, err = fmt.Fprintf(w, "OK\n")
if err != nil {
errortext := fmt.Sprintf("Couldn't write body: %s", err)
log.Println(errortext)
http.Error(w, errortext, http.StatusInternalServerError)
}
httpUpdateConfigReloadDNSReturnOK(w, r)
}
func handleParentalDisable(w http.ResponseWriter, r *http.Request) {
config.CoreDNS.ParentalEnabled = false
err := writeAllConfigsAndReloadCoreDNS()
if err != nil {
errortext := fmt.Sprintf("Couldn't write config file: %s", err)
log.Println(errortext)
http.Error(w, errortext, http.StatusInternalServerError)
return
}
_, err = fmt.Fprintf(w, "OK\n")
if err != nil {
errortext := fmt.Sprintf("Couldn't write body: %s", err)
log.Println(errortext)
http.Error(w, errortext, http.StatusInternalServerError)
}
httpUpdateConfigReloadDNSReturnOK(w, r)
}
func handleParentalStatus(w http.ResponseWriter, r *http.Request) {
@ -1350,38 +1220,12 @@ func handleParentalStatus(w http.ResponseWriter, r *http.Request) {
func handleSafeSearchEnable(w http.ResponseWriter, r *http.Request) {
config.CoreDNS.SafeSearchEnabled = true
err := writeAllConfigsAndReloadCoreDNS()
if err != nil {
errortext := fmt.Sprintf("Couldn't write config file: %s", err)
log.Println(errortext)
http.Error(w, errortext, http.StatusInternalServerError)
return
}
_, err = fmt.Fprintf(w, "OK\n")
if err != nil {
errortext := fmt.Sprintf("Couldn't write body: %s", err)
log.Println(errortext)
http.Error(w, errortext, http.StatusInternalServerError)
}
httpUpdateConfigReloadDNSReturnOK(w, r)
}
func handleSafeSearchDisable(w http.ResponseWriter, r *http.Request) {
config.CoreDNS.SafeSearchEnabled = false
err := writeAllConfigsAndReloadCoreDNS()
if err != nil {
errortext := fmt.Sprintf("Couldn't write config file: %s", err)
log.Println(errortext)
http.Error(w, errortext, http.StatusInternalServerError)
return
}
_, err = fmt.Fprintf(w, "OK\n")
if err != nil {
errortext := fmt.Sprintf("Couldn't write body: %s", err)
log.Println(errortext)
http.Error(w, errortext, http.StatusInternalServerError)
}
httpUpdateConfigReloadDNSReturnOK(w, r)
}
func handleSafeSearchStatus(w http.ResponseWriter, r *http.Request) {
@ -1411,25 +1255,27 @@ func registerControlHandlers() {
http.HandleFunc("/control/stop", optionalAuth(ensurePOST(handleStop)))
http.HandleFunc("/control/restart", optionalAuth(ensurePOST(handleRestart)))
http.HandleFunc("/control/status", optionalAuth(ensureGET(handleStatus)))
http.HandleFunc("/control/stats", optionalAuth(ensureGET(handleStats)))
http.HandleFunc("/control/stats_history", optionalAuth(ensureGET(handleStatsHistory)))
http.HandleFunc("/control/stats_top", optionalAuth(ensureGET(handleStatsTop)))
http.HandleFunc("/control/stats_reset", optionalAuth(ensurePOST(handleStatsReset)))
http.HandleFunc("/control/enable_protection", optionalAuth(ensurePOST(handleProtectionEnable)))
http.HandleFunc("/control/disable_protection", optionalAuth(ensurePOST(handleProtectionDisable)))
http.HandleFunc("/control/querylog", optionalAuth(ensureGET(handleQueryLog)))
http.HandleFunc("/control/querylog_enable", optionalAuth(ensurePOST(handleQueryLogEnable)))
http.HandleFunc("/control/querylog_disable", optionalAuth(ensurePOST(handleQueryLogDisable)))
http.HandleFunc("/control/set_upstream_dns", optionalAuth(ensurePOST(handleSetUpstreamDNS)))
http.HandleFunc("/control/test_upstream_dns", optionalAuth(ensurePOST(handleTestUpstreamDNS)))
http.HandleFunc("/control/stats_top", optionalAuth(ensureGET(handleStatsTop)))
http.HandleFunc("/control/stats", optionalAuth(ensureGET(handleStats)))
http.HandleFunc("/control/stats_history", optionalAuth(ensureGET(handleStatsHistory)))
http.HandleFunc("/control/stats_reset", optionalAuth(ensurePOST(handleStatsReset)))
http.HandleFunc("/control/version.json", optionalAuth(handleGetVersionJSON))
http.HandleFunc("/control/filtering/enable", optionalAuth(ensurePOST(handleFilteringEnable)))
http.HandleFunc("/control/filtering/disable", optionalAuth(ensurePOST(handleFilteringDisable)))
http.HandleFunc("/control/filtering/status", optionalAuth(ensureGET(handleFilteringStatus)))
http.HandleFunc("/control/filtering/add_url", optionalAuth(ensurePUT(handleFilteringAddURL)))
http.HandleFunc("/control/filtering/remove_url", optionalAuth(ensureDELETE(handleFilteringRemoveURL)))
http.HandleFunc("/control/filtering/enable_url", optionalAuth(ensurePOST(handleFilteringEnableURL)))
http.HandleFunc("/control/filtering/disable_url", optionalAuth(ensurePOST(handleFilteringDisableURL)))
http.HandleFunc("/control/filtering/set_rules", optionalAuth(ensurePUT(handleFilteringSetRules)))
http.HandleFunc("/control/filtering/refresh", optionalAuth(ensurePOST(handleFilteringRefresh)))
http.HandleFunc("/control/filtering/status", optionalAuth(ensureGET(handleFilteringStatus)))
http.HandleFunc("/control/filtering/set_rules", optionalAuth(ensurePUT(handleFilteringSetRules)))
http.HandleFunc("/control/safebrowsing/enable", optionalAuth(ensurePOST(handleSafeBrowsingEnable)))
http.HandleFunc("/control/safebrowsing/disable", optionalAuth(ensurePOST(handleSafeBrowsingDisable)))
http.HandleFunc("/control/safebrowsing/status", optionalAuth(ensureGET(handleSafeBrowsingStatus)))

28
openapi.yaml
View File

@ -65,12 +65,31 @@ paths:
application/json:
dns_address: 127.0.0.1
dns_port: 53
protection_enabled: true
querylog_enabled: true
running: true
upstream_dns:
- 1.1.1.1
- 1.0.0.1
version: "v0.1"
/enable_protection:
post:
tags:
-global
operationId: enableProtection
summary: "Enable protection (turns on dnsfilter module in coredns)"
responses:
200:
description: OK
/disable_protection:
post:
tags:
-global
operationId: disableProtection
summary: "Disable protection (turns off filtering, sb, parental, safesearch temporarily by disabling dnsfilter module in coredns)"
responses:
200:
description: OK
/querylog:
get:
tags:
@ -316,6 +335,15 @@ paths:
- 123
- 123
- 123
/stats_reset:
post:
tags:
-global
operationId: statsReset
summary: "Reset all statistics to zeroes"
responses:
200:
description: OK
/filtering/enable:
post:
tags: