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/*
* Copyright (C) 2014 ~ 2018 Deepin Technology Co., Ltd.
*
* Author: jouyouyun <jouyouwen717@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package proxy
import (
"fmt"
"os"
"pkg.deepin.io/gir/gio-2.0"
"pkg.deepin.io/lib/gsettings"
"pkg.deepin.io/lib/log"
"pkg.deepin.io/lib/utils"
"strconv"
"strings"
)
// Synchronize proxy gsettings to environment variables.
//
// Examples of proxy environment variables:
// http_proxy="http://user:pass@127.0.0.1:8080/"
// https_proxy="https://127.0.0.1:8080/"
// ftp_proxy="ftp://127.0.0.1:8080/"
// all_proxy="http://127.0.0.1:8080/"
// SOCKS_SERVER=socks5://127.0.0.1:8000/
// no_proxy="localhost,127.0.0.0/8,::1"
const (
// general proxy environment variables, works for wget/curl/aria2c
envAutoProxy = "auto_proxy"
envHttpProxy = "http_proxy"
envHttpsProxy = "https_proxy"
envFtpProxy = "ftp_proxy"
envAllProxy = "all_proxy"
envNoProxy = "no_proxy"
// special proxy environment variable for chrome
envSocksProxy = "SOCKS_SERVER"
gsettingsIdProxy = "com.deepin.wrap.gnome.system.proxy"
proxyTypeHttp = "http"
proxyTypeHttps = "https"
proxyTypeFtp = "ftp"
proxyTypeSocks = "socks5"
gkeyProxyMode = "mode"
proxyModeNone = "none"
proxyModeManual = "manual"
proxyModeAuto = "auto"
gkeyProxyAuto = "autoconfig-url"
gkeyProxyIgnoreHosts = "ignore-hosts"
gkeyProxyHost = "host"
gkeyProxyPort = "port"
gchildProxyHttp = "http"
gchildProxyHttps = "https"
gchildProxyFtp = "ftp"
gchildProxySocks = "socks"
)
var (
logger = log.NewLogger("go-lib/proxy")
proxySettings *gio.Settings
proxyChildSettingsHttp *gio.Settings
proxyChildSettingsHttps *gio.Settings
proxyChildSettingsFtp *gio.Settings
proxyChildSettingsSocks *gio.Settings
)
// SetupProxy setup system proxy, need followed with glib.StartLoop().
func SetupProxy() {
proxySettings = gio.NewSettings(gsettingsIdProxy)
proxyChildSettingsHttp = proxySettings.GetChild(gchildProxyHttp)
proxyChildSettingsHttps = proxySettings.GetChild(gchildProxyHttps)
proxyChildSettingsFtp = proxySettings.GetChild(gchildProxyFtp)
proxyChildSettingsSocks = proxySettings.GetChild(gchildProxySocks)
updateProxyEnvs()
listenProxyGsettings()
}
func listenProxyGsettings() {
changedHandler := func(key string) {
updateProxyEnvs()
}
const systemProxy = "system.proxy"
gsettings.ConnectChanged(systemProxy, "*", changedHandler)
gsettings.ConnectChanged(systemProxy+"."+gchildProxyHttp, "*", changedHandler)
gsettings.ConnectChanged(systemProxy+"."+gchildProxyHttps, "*", changedHandler)
gsettings.ConnectChanged(systemProxy+"."+gchildProxyFtp, "*", changedHandler)
gsettings.ConnectChanged(systemProxy+"."+gchildProxySocks, "*", changedHandler)
}
func showEnvs() {
showEnv(envHttpProxy)
showEnv(envHttpsProxy)
showEnv(envFtpProxy)
showEnv(envSocksProxy)
showEnv(envAllProxy)
showEnv(envAutoProxy)
showEnv(envNoProxy)
}
func showEnv(envName string) {
if utils.IsEnvExists(envName) {
logger.Debug(envName, os.Getenv(envName))
} else {
logger.Debug(envName, "<not exists>")
}
}
func updateProxyEnvs() {
logger.Debug("update proxy environment variables...")
os.Unsetenv(envHttpProxy)
os.Unsetenv(envHttpsProxy)
os.Unsetenv(envFtpProxy)
os.Unsetenv(envSocksProxy)
os.Unsetenv(envAutoProxy)
os.Unsetenv(envAllProxy)
os.Unsetenv(envNoProxy)
proxyMode := proxySettings.GetString(gkeyProxyMode)
switch proxyMode {
case proxyModeNone:
case proxyModeAuto:
doSetEnv(envAutoProxy, proxySettings.GetString(gkeyProxyAuto))
case proxyModeManual:
doSetEnv(envHttpProxy, getProxyValue(proxyTypeHttp))
doSetEnv(envHttpsProxy, getProxyValue(proxyTypeHttps))
doSetEnv(envFtpProxy, getProxyValue(proxyTypeFtp))
doSetEnv(envSocksProxy, getProxyValue(proxyTypeSocks))
arrayIgnoreHosts := proxySettings.GetStrv(gkeyProxyIgnoreHosts)
ignoreHosts := strings.Join(arrayIgnoreHosts, ",")
doSetEnv(envNoProxy, ignoreHosts)
// fallback socks proxy value to http to be compatible with Qt>=4.6
if utils.IsEnvExists(envSocksProxy) && !utils.IsEnvExists(envHttpProxy) {
doSetEnv(envHttpProxy, os.Getenv(envSocksProxy))
}
}
showEnvs()
}
func doSetEnv(env, value string) {
if len(value) > 0 {
os.Setenv(env, value)
}
}
func getProxyValue(proxyType string) (proxyValue string) {
childSettings, err := getProxyChildSettings(proxyType)
if err != nil {
return
}
host := childSettings.GetString(gkeyProxyHost)
if len(host) == 0 {
return
}
port := strconv.Itoa(int(childSettings.GetInt(gkeyProxyPort)))
proxyValue = fmt.Sprintf("%s://%s:%s", proxyType, host, port)
return
}
func getProxyChildSettings(proxyType string) (childSettings *gio.Settings, err error) {
switch proxyType {
case proxyTypeHttp:
childSettings = proxyChildSettingsHttp
case proxyTypeHttps:
childSettings = proxyChildSettingsHttps
case proxyTypeFtp:
childSettings = proxyChildSettingsFtp
case proxyTypeSocks:
childSettings = proxyChildSettingsSocks
default:
err = fmt.Errorf("not a valid proxy type: %s", proxyType)
logger.Error(err)
}
return
}
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