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Pull request: home: http conf

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Updates #2860.

Squashed commit of the following:

commit 0d55a99d5c0b9f1d8c9497775dd69929e5091eaa
Merge: 73a203ac8 d4a4bda64
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date:   Thu Jun 29 16:25:36 2023 +0400

    Merge remote-tracking branch 'origin/master' into http-yaml-conf

commit 73a203ac8acf083fa289015e1f301d05bf320ea7
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date:   Thu Jun 29 16:21:48 2023 +0400

    home: imp docs

commit a4819ace94bfe4427f70f1b8341c9babc9234740
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date:   Thu Jun 29 11:45:30 2023 +0400

    snap: imp script

commit b0913c7ac5c6c46d6a73790fd57d8c5f9d7ace75
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date:   Wed Jun 28 17:34:03 2023 +0400

    all: docs

commit 14820d6d56f958081d9f236277fd34f356bdab33
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date:   Wed Jun 28 13:21:43 2023 +0400

    home: imp tests

commit 9db800d3ce39c36da7959e37b4a46736f4217e5c
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date:   Wed Jun 28 13:17:34 2023 +0400

    all: docs

commit 9174a0ae710da51d85b4e1b1af79eda6a61dd3a2
Merge: ca8c4ae95 d88181343
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date:   Wed Jun 28 10:19:01 2023 +0400

    Merge remote-tracking branch 'origin/master' into http-yaml-conf

    # Conflicts:
    #	CHANGELOG.md
    #	internal/home/upgrade.go
    #	internal/home/upgrade_test.go

commit ca8c4ae954ece25d78ef2f873bb3ba71fa4b8fa9
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date:   Wed Jun 28 10:07:15 2023 +0400

    snap: imp script

commit d84473f8e07b2c6e65023613eb4032fd01951521
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date:   Wed Jun 28 09:59:57 2023 +0400

    snap: imp script

commit 8a0808e42ddbff7d9d3345d758f91b14bb4453be
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date:   Tue Jun 27 15:03:53 2023 +0400

    home: http conf

commit e8fbb89cc5748f9d8fa4be9e702756bd8b869de9
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date:   Tue Jun 27 14:59:37 2023 +0400

    home: imp code

commit 46541aabc421118562d564675dfd7e594d2056aa
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date:   Tue Jun 27 12:36:14 2023 +0400

    snap: bind port

commit cecda5fcfd8c473db42f235b4f586b2193086997
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date:   Tue Jun 27 12:12:39 2023 +0400

    docker: bind port

commit 8d8945b70366c6b018616a32421c77eb281a6ea1
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date:   Tue Jun 27 11:06:32 2023 +0400

    home: imp code

commit ae5e8c1c4333d7b752c08605d80e41f55ee50e59
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date:   Tue Jun 27 11:02:09 2023 +0400

    home: imp code

commit c9ee460f37e32941b84ea5fa94d21b186d6dd82b
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date:   Mon Jun 26 17:11:10 2023 +0400

    home: imp code

commit 44c72445112ef38d6ec9c25b197c119edd6c959f
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date:   Mon Jun 26 11:52:19 2023 +0400

    all: docs

commit e3bf5faeb748f347b1202a496788739ff9219ed0
Merge: 38cc0f639 e7e638443
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date:   Mon Jun 26 11:39:12 2023 +0400

    Merge remote-tracking branch 'origin/master' into http-yaml-conf

commit 38cc0f6399040f1fa39d9da31ad6db65a6bdd4cc
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date:   Mon Jun 26 11:38:17 2023 +0400

    snap: bind port

commit 3b9cb9e8cc89a67e55cecc7a2040c150f8675b4c
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date:   Mon Jun 26 11:25:03 2023 +0400

    docker: bind port

... and 4 more commits
This commit is contained in:
Dimitry Kolyshev 2023-06-29 15:29:52 +03:00
parent d4a4bda645
commit 39f5c50acd
12 changed files with 247 additions and 77 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
CHANGELOG.md
View File

@ -37,8 +37,27 @@ NOTE: Add new changes BELOW THIS COMMENT.
#### Configuration Changes
In this release, the schema version has changed from 20 to 22.
In this release, the schema version has changed from 20 to 23.
- Properties `bind_host`, `bind_port`, and `web_session_ttl` which used to setup
web UI binding configuration, are now moved to a new object `http` containing
new properties `address` and `session_ttl`:
```yaml
# BEFORE:
'bind_host': '1.2.3.4'
'bind_port': 8080
'web_session_ttl': 720
# AFTER:
'http':
'address': '1.2.3.4:8080'
'session_ttl': '720h'
```
Note that the new `http.session_ttl` property is now a duration string. To
rollback this change, remove the new object `http`, set back `bind_host`,
`bind_port`, `web_session_ttl`, and change the `schema_version` back to `22`.
- Property `clients.persistent.blocked_services`, which in schema versions 21
and earlier used to be a list containing ids of blocked services, is now an
object containing ids and schedule for blocked services:

12
docker/web-bind.awk
View File

@ -1,13 +1,5 @@
# Don't consider the HTTPS hostname since the enforced HTTPS redirection should
# work if the SSL check skipped. See file docker/healthcheck.sh.
/^bind_host:/ { host = $2 }
/^[^[:space:]]/ { is_http = /^http:/ }
/^bind_port:/ { port = $2 }
END {
if (match(host, ":")) {
print "http://[" host "]:" port
} else {
print "http://" host ":" port
}
}
/^[[:space:]]+address:/ { if (is_http) print "http://" $2 }

48
internal/home/config.go
View File

@ -91,18 +91,17 @@ type clientSourcesConfig struct {
HostsFile bool `yaml:"hosts"`
}
// configuration is loaded from YAML
// field ordering is important -- yaml fields will mirror ordering from here
// configuration is loaded from YAML.
//
// Field ordering is important, YAML fields better not to be reordered, if it's
// not absolutely necessary.
type configuration struct {
// Raw file data to avoid re-reading of configuration file
// It's reset after config is parsed
fileData []byte
// BindHost is the address for the web interface server to listen on.
BindHost netip.Addr `yaml:"bind_host"`
// BindPort is the port for the web interface server to listen on.
BindPort int `yaml:"bind_port"`
// HTTPConfig is the block with http conf.
HTTPConfig httpConfig `yaml:"http"`
// Users are the clients capable for accessing the web interface.
Users []webUser `yaml:"users"`
// AuthAttempts is the maximum number of failed login attempts a user
@ -120,10 +119,6 @@ type configuration struct {
// DebugPProf defines if the profiling HTTP handler will listen on :6060.
DebugPProf bool `yaml:"debug_pprof"`
// TTL for a web session (in hours)
// An active session is automatically refreshed once a day.
WebSessionTTLHours uint32 `yaml:"web_session_ttl"`
DNS dnsConfig `yaml:"dns"`
TLS tlsConfigSettings `yaml:"tls"`
QueryLog queryLogConfig `yaml:"querylog"`
@ -156,7 +151,23 @@ type configuration struct {
SchemaVersion int `yaml:"schema_version"` // keeping last so that users will be less tempted to change it -- used when upgrading between versions
}
// field ordering is important -- yaml fields will mirror ordering from here
// httpConfig is a block with HTTP configuration params.
//
// Field ordering is important, YAML fields better not to be reordered, if it's
// not absolutely necessary.
type httpConfig struct {
// Address is the address to serve the web UI on.
Address netip.AddrPort
// SessionTTL for a web session.
// An active session is automatically refreshed once a day.
SessionTTL timeutil.Duration `yaml:"session_ttl"`
}
// dnsConfig is a block with DNS configuration params.
//
// Field ordering is important, YAML fields better not to be reordered, if it's
// not absolutely necessary.
type dnsConfig struct {
BindHosts []netip.Addr `yaml:"bind_hosts"`
Port int `yaml:"port"`
@ -261,11 +272,12 @@ type statsConfig struct {
//
// TODO(a.garipov, e.burkov): This global is awful and must be removed.
var config = &configuration{
BindPort: 3000,
BindHost: netip.IPv4Unspecified(),
AuthAttempts: 5,
AuthBlockMin: 15,
WebSessionTTLHours: 30 * 24,
HTTPConfig: httpConfig{
Address: netip.AddrPortFrom(netip.IPv4Unspecified(), 3000),
SessionTTL: timeutil.Duration{Duration: 30 * timeutil.Day},
},
DNS: dnsConfig{
BindHosts: []netip.Addr{netip.IPv4Unspecified()},
Port: defaultPortDNS,
@ -427,8 +439,8 @@ func readLogSettings() (ls *logSettings) {
// validateBindHosts returns error if any of binding hosts from configuration is
// not a valid IP address.
func validateBindHosts(conf *configuration) (err error) {
if !conf.BindHost.IsValid() {
return errors.Error("bind_host is not a valid ip address")
if !conf.HTTPConfig.Address.IsValid() {
return errors.Error("http.address is not a valid ip address")
}
for i, addr := range conf.DNS.BindHosts {
@ -462,7 +474,7 @@ func parseConfig() (err error) {
}
tcpPorts := aghalg.UniqChecker[tcpPort]{}
addPorts(tcpPorts, tcpPort(config.BindPort))
addPorts(tcpPorts, tcpPort(config.HTTPConfig.Address.Port()))
udpPorts := aghalg.UniqChecker[udpPort]{}
addPorts(udpPorts, udpPort(config.DNS.Port))

4
internal/home/control.go
View File

@ -103,7 +103,7 @@ type statusResponse struct {
Language string `json:"language"`
DNSAddrs []string `json:"dns_addresses"`
DNSPort int `json:"dns_port"`
HTTPPort int `json:"http_port"`
HTTPPort uint16 `json:"http_port"`
// ProtectionDisabledDuration is the duration of the protection pause in
// milliseconds.
@ -158,7 +158,7 @@ func handleStatus(w http.ResponseWriter, r *http.Request) {
Language: config.Language,
DNSAddrs: dnsAddrs,
DNSPort: config.DNS.Port,
HTTPPort: config.BindPort,
HTTPPort: config.HTTPConfig.Address.Port(),
ProtectionDisabledDuration: protectionDisabledDuration,
ProtectionEnabled: protectionEnabled,
IsRunning: isRunning(),

24
internal/home/controlinstall.go
View File

@ -96,8 +96,9 @@ type checkConfResp struct {
func (req *checkConfReq) validateWeb(tcpPorts aghalg.UniqChecker[tcpPort]) (err error) {
defer func() { err = errors.Annotate(err, "validating ports: %w") }()
portInt := req.Web.Port
port := tcpPort(portInt)
// TODO(a.garipov): Declare all port variables anywhere as uint16.
reqPort := uint16(req.Web.Port)
port := tcpPort(reqPort)
addPorts(tcpPorts, port)
if err = tcpPorts.Validate(); err != nil {
// Reset the value for the port to 1 to make sure that validateDNS
@ -108,15 +109,15 @@ func (req *checkConfReq) validateWeb(tcpPorts aghalg.UniqChecker[tcpPort]) (err
return err
}
switch portInt {
case 0, config.BindPort:
switch reqPort {
case 0, config.HTTPConfig.Address.Port():
return nil
default:
// Go on and check the port binding only if it's not zero or won't be
// unbound after install.
}
return aghnet.CheckPort("tcp", netip.AddrPortFrom(req.Web.IP, uint16(portInt)))
return aghnet.CheckPort("tcp", netip.AddrPortFrom(req.Web.IP, reqPort))
}
// validateDNS returns error if the DNS part of the initial configuration can't
@ -127,11 +128,11 @@ func (req *checkConfReq) validateDNS(
) (canAutofix bool, err error) {
defer func() { err = errors.Annotate(err, "validating ports: %w") }()
port := req.DNS.Port
port := uint16(req.DNS.Port)
switch port {
case 0:
return false, nil
case config.BindPort:
case config.HTTPConfig.Address.Port():
// Go on and only check the UDP port since the TCP one is already bound
// by AdGuard Home for web interface.
default:
@ -318,8 +319,7 @@ type applyConfigReq struct {
// copyInstallSettings copies the installation parameters between two
// configuration structures.
func copyInstallSettings(dst, src *configuration) {
dst.BindHost = src.BindHost
dst.BindPort = src.BindPort
dst.HTTPConfig = src.HTTPConfig
dst.DNS.BindHosts = src.DNS.BindHosts
dst.DNS.Port = src.DNS.Port
}
@ -413,8 +413,7 @@ func (web *webAPI) handleInstallConfigure(w http.ResponseWriter, r *http.Request
copyInstallSettings(curConfig, config)
Context.firstRun = false
config.BindHost = req.Web.IP
config.BindPort = req.Web.Port
config.HTTPConfig.Address = netip.AddrPortFrom(req.Web.IP, uint16(req.Web.Port))
config.DNS.BindHosts = []netip.Addr{req.DNS.IP}
config.DNS.Port = req.DNS.Port
@ -487,7 +486,8 @@ func decodeApplyConfigReq(r io.Reader) (req *applyConfigReq, restartHTTP bool, e
return nil, false, errors.Error("ports cannot be 0")
}
restartHTTP = config.BindHost != req.Web.IP || config.BindPort != req.Web.Port
addrPort := config.HTTPConfig.Address
restartHTTP = addrPort.Addr() != req.Web.IP || int(addrPort.Port()) != req.Web.Port
if restartHTTP {
err = aghnet.CheckPort("tcp", netip.AddrPortFrom(req.Web.IP, uint16(req.Web.Port)))
if err != nil {

4
internal/home/controlupdate.go
View File

@ -157,7 +157,9 @@ func (vr *versionResponse) setAllowedToAutoUpdate() (err error) {
Context.tls.WriteDiskConfig(tlsConf)
canUpdate := true
if tlsConfUsesPrivilegedPorts(tlsConf) || config.BindPort < 1024 || config.DNS.Port < 1024 {
if tlsConfUsesPrivilegedPorts(tlsConf) ||
config.HTTPConfig.Address.Port() < 1024 ||
config.DNS.Port < 1024 {
canUpdate, err = aghnet.CanBindPrivilegedPorts()
if err != nil {
return fmt.Errorf("checking ability to bind privileged ports: %w", err)

60
internal/home/home.go
View File

@ -372,8 +372,26 @@ func initContextClients() (err error) {
// setupBindOpts overrides bind host/port from the opts.
func setupBindOpts(opts options) (err error) {
bindAddr := opts.bindAddr
if bindAddr != (netip.AddrPort{}) {
config.HTTPConfig.Address = bindAddr
if config.HTTPConfig.Address.Port() != 0 {
err = checkPorts()
if err != nil {
// Don't wrap the error, because it's informative enough as is.
return err
}
}
return nil
}
if opts.bindPort != 0 {
config.BindPort = opts.bindPort
config.HTTPConfig.Address = netip.AddrPortFrom(
config.HTTPConfig.Address.Addr(),
uint16(opts.bindPort),
)
err = checkPorts()
if err != nil {
@ -383,20 +401,10 @@ func setupBindOpts(opts options) (err error) {
}
if opts.bindHost.IsValid() {
config.BindHost = opts.bindHost
}
// Rewrite deprecated options.
bindAddr := opts.bindAddr
if bindAddr.IsValid() {
config.BindHost = bindAddr.Addr()
config.BindPort = int(bindAddr.Port())
err = checkPorts()
if err != nil {
// Don't wrap the error, because it's informative enough as is.
return err
}
config.HTTPConfig.Address = netip.AddrPortFrom(
opts.bindHost,
config.HTTPConfig.Address.Port(),
)
}
return nil
@ -480,7 +488,7 @@ func setupDNSFilteringConf(conf *filtering.Config) (err error) {
// checkPorts is a helper for ports validation in config.
func checkPorts() (err error) {
tcpPorts := aghalg.UniqChecker[tcpPort]{}
addPorts(tcpPorts, tcpPort(config.BindPort))
addPorts(tcpPorts, tcpPort(config.HTTPConfig.Address.Port()))
udpPorts := aghalg.UniqChecker[udpPort]{}
addPorts(udpPorts, udpPort(config.DNS.Port))
@ -520,8 +528,8 @@ func initWeb(opts options, clientBuildFS fs.FS) (web *webAPI, err error) {
webConf := webConfig{
firstRun: Context.firstRun,
BindHost: config.BindHost,
BindPort: config.BindPort,
BindHost: config.HTTPConfig.Address.Addr(),
BindPort: int(config.HTTPConfig.Address.Port()),
ReadTimeout: readTimeout,
ReadHeaderTimeout: readHdrTimeout,
@ -657,8 +665,8 @@ func initUsers() (auth *Auth, err error) {
log.Info("authratelimiter is disabled")
}
sessionTTL := config.WebSessionTTLHours * 60 * 60
auth = InitAuth(sessFilename, config.Users, sessionTTL, rateLimiter)
sessionTTL := config.HTTPConfig.SessionTTL.Seconds()
auth = InitAuth(sessFilename, config.Users, uint32(sessionTTL), rateLimiter)
if auth == nil {
return nil, errors.Error("initializing auth module failed")
}
@ -936,7 +944,7 @@ func printHTTPAddresses(proto string) {
Context.tls.WriteDiskConfig(&tlsConf)
}
port := config.BindPort
port := int(config.HTTPConfig.Address.Port())
if proto == aghhttp.SchemeHTTPS {
port = tlsConf.PortHTTPS
}
@ -948,9 +956,9 @@ func printHTTPAddresses(proto string) {
return
}
bindhost := config.BindHost
if !bindhost.IsUnspecified() {
printWebAddrs(proto, bindhost.String(), port)
bindHost := config.HTTPConfig.Address.Addr()
if !bindHost.IsUnspecified() {
printWebAddrs(proto, bindHost.String(), port)
return
}
@ -961,14 +969,14 @@ func printHTTPAddresses(proto string) {
// That's weird, but we'll ignore it.
//
// TODO(e.burkov): Find out when it happens.
printWebAddrs(proto, bindhost.String(), port)
printWebAddrs(proto, bindHost.String(), port)
return
}
for _, iface := range ifaces {
for _, addr := range iface.Addresses {
printWebAddrs(proto, addr.String(), config.BindPort)
printWebAddrs(proto, addr.String(), port)
}
}
}

4
internal/home/tls.go
View File

@ -320,7 +320,7 @@ func (m *tlsManager) handleTLSValidate(w http.ResponseWriter, r *http.Request) {
if setts.Enabled {
err = validatePorts(
tcpPort(config.BindPort),
tcpPort(config.HTTPConfig.Address.Port()),
tcpPort(setts.PortHTTPS),
tcpPort(setts.PortDNSOverTLS),
tcpPort(setts.PortDNSCrypt),
@ -407,7 +407,7 @@ func (m *tlsManager) handleTLSConfigure(w http.ResponseWriter, r *http.Request)
if req.Enabled {
err = validatePorts(
tcpPort(config.BindPort),
tcpPort(config.HTTPConfig.Address.Port()),
tcpPort(req.PortHTTPS),
tcpPort(req.PortDNSOverTLS),
tcpPort(req.PortDNSCrypt),

71
internal/home/upgrade.go
View File

@ -3,6 +3,7 @@ package home
import (
"bytes"
"fmt"
"net/netip"
"net/url"
"os"
"path"
@ -22,7 +23,7 @@ import (
)
// currentSchemaVersion is the current schema version.
const currentSchemaVersion = 22
const currentSchemaVersion = 23
// These aliases are provided for convenience.
type (
@ -96,6 +97,7 @@ func upgradeConfigSchema(oldVersion int, diskConf yobj) (err error) {
upgradeSchema19to20,
upgradeSchema20to21,
upgradeSchema21to22,
upgradeSchema22to23,
}
n := 0
@ -1256,6 +1258,73 @@ func upgradeSchema21to22(diskConf yobj) (err error) {
return nil
}
// upgradeSchema22to23 performs the following changes:
//
// # BEFORE:
// 'bind_host': '1.2.3.4'
// 'bind_port': 8080
// 'web_session_ttl': 720
//
// # AFTER:
// 'http':
// 'address': '1.2.3.4:8080'
// 'session_ttl': '720h'
func upgradeSchema22to23(diskConf yobj) (err error) {
log.Printf("Upgrade yaml: 22 to 23")
diskConf["schema_version"] = 23
bindHostVal, ok := diskConf["bind_host"]
if !ok {
return nil
}
bindHost, ok := bindHostVal.(string)
if !ok {
return fmt.Errorf("unexpected type of bind_host: %T", bindHostVal)
}
bindHostAddr, err := netip.ParseAddr(bindHost)
if err != nil {
return fmt.Errorf("invalid bind_host value: %s", bindHost)
}
bindPortVal, ok := diskConf["bind_port"]
if !ok {
return nil
}
bindPort, ok := bindPortVal.(int)
if !ok {
return fmt.Errorf("unexpected type of bind_port: %T", bindPortVal)
}
sessionTTLVal, ok := diskConf["web_session_ttl"]
if !ok {
return nil
}
sessionTTL, ok := sessionTTLVal.(int)
if !ok {
return fmt.Errorf("unexpected type of web_session_ttl: %T", sessionTTLVal)
}
addr := netip.AddrPortFrom(bindHostAddr, uint16(bindPort))
if !addr.IsValid() {
return fmt.Errorf("invalid address: %s", addr)
}
diskConf["http"] = yobj{
"address": addr.String(),
"session_ttl": timeutil.Duration{Duration: time.Duration(sessionTTL) * time.Hour}.String(),
}
delete(diskConf, "bind_host")
delete(diskConf, "bind_port")
delete(diskConf, "web_session_ttl")
return nil
}
// TODO(a.garipov): Replace with log.Output when we port it to our logging
// package.
func funcName() string {

53
internal/home/upgrade_test.go
View File

@ -1253,3 +1253,56 @@ func TestUpgradeSchema21to22(t *testing.T) {
})
}
}
func TestUpgradeSchema22to23(t *testing.T) {
const newSchemaVer = 23
testCases := []struct {
in yobj
want yobj
name string
}{{
name: "empty",
in: yobj{},
want: yobj{
"schema_version": newSchemaVer,
},
}, {
name: "ok",
in: yobj{
"bind_host": "1.2.3.4",
"bind_port": 8081,
"web_session_ttl": 720,
},
want: yobj{
"http": yobj{
"address": "1.2.3.4:8081",
"session_ttl": "720h",
},
"schema_version": newSchemaVer,
},
}, {
name: "v6_address",
in: yobj{
"bind_host": "2001:db8::1",
"bind_port": 8081,
"web_session_ttl": 720,
},
want: yobj{
"http": yobj{
"address": "[2001:db8::1]:8081",
"session_ttl": "720h",
},
"schema_version": newSchemaVer,
},
}}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
err := upgradeSchema22to23(tc.in)
require.NoError(t, err)
assert.Equal(t, tc.want, tc.in)
})
}
}

4
internal/home/web.go
View File

@ -119,7 +119,9 @@ func webCheckPortAvailable(port int) (ok bool) {
return true
}
return aghnet.CheckPort("tcp", netip.AddrPortFrom(config.BindHost, uint16(port))) == nil
addrPort := netip.AddrPortFrom(config.HTTPConfig.Address.Addr(), uint16(port))
return aghnet.CheckPort("tcp", addrPort) == nil
}
// tlsConfigChanged updates the TLS configuration and restarts the HTTPS server

15
snap/local/adguard-home-web.sh
View File

@ -1,7 +1,20 @@
#!/bin/sh
conf_file="${SNAP_DATA}/AdGuardHome.yaml"
readonly conf_file
if ! [ -f "$conf_file" ]
then
xdg-open 'http://localhost:3000'
exit
fi
# Get the admin interface port from the configuration.
bind_port="$( grep -e 'bind_port' "${SNAP_DATA}/AdGuardHome.yaml" | awk -F ' ' '{print $2}' )"
awk_prog='/^[^[:space:]]/ { is_http = /^http:/ };/^[[:space:]]+address:/ { if (is_http) print $2 }'
readonly awk_prog
bind_port="$( awk "$awk_prog" "$conf_file" | awk -F ':' '{print $NF}' )"
readonly bind_port
if [ "$bind_port" = '' ]