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package ieproxy
/*
#cgo LDFLAGS: -framework CoreFoundation
#cgo LDFLAGS: -framework CFNetwork
#include <strings.h>
#include <CFNetwork/CFProxySupport.h>
*/
import "C"
import (
"fmt"
"strings"
"sync"
"unsafe"
)
var once sync.Once
var darwinProxyConf ProxyConf
// GetConf retrieves the proxy configuration from the Windows Regedit
func getConf() ProxyConf {
once.Do(writeConf)
return darwinProxyConf
}
// reloadConf forces a reload of the proxy configuration.
func reloadConf() ProxyConf {
writeConf()
return getConf()
}
func cfStringGetGoString(cfStr C.CFStringRef) string {
retCString := (*C.char)(C.calloc(C.ulong(uint(128)), 1))
defer C.free(unsafe.Pointer(retCString))
C.CFStringGetCString(cfStr, retCString, C.long(128), C.kCFStringEncodingUTF8)
return C.GoString(retCString)
}
func cfNumberGetGoInt(cfNum C.CFNumberRef) int {
ret := 0
C.CFNumberGetValue(cfNum, C.kCFNumberIntType, unsafe.Pointer(&ret))
return ret
}
func cfArrayGetGoStrings(cfArray C.CFArrayRef) []string {
var ret []string
for i := 0; i < int(C.CFArrayGetCount(cfArray)); i++ {
cfStr := C.CFStringRef(C.CFArrayGetValueAtIndex(cfArray, C.long(i)))
if unsafe.Pointer(cfStr) != C.NULL {
ret = append(ret, cfStringGetGoString(cfStr))
}
}
return ret
}
func writeConf() {
cfDictProxy := C.CFDictionaryRef(C.CFNetworkCopySystemProxySettings())
defer C.CFRelease(C.CFTypeRef(cfDictProxy))
darwinProxyConf = ProxyConf{}
cfNumHttpEnable := C.CFNumberRef(C.CFDictionaryGetValue(cfDictProxy, unsafe.Pointer(C.kCFNetworkProxiesHTTPEnable)))
if unsafe.Pointer(cfNumHttpEnable) != C.NULL && cfNumberGetGoInt(cfNumHttpEnable) > 0 {
darwinProxyConf.Static.Active = true
if darwinProxyConf.Static.Protocols == nil {
darwinProxyConf.Static.Protocols = make(map[string]string)
}
httpHost := C.CFStringRef(C.CFDictionaryGetValue(cfDictProxy, unsafe.Pointer(C.kCFNetworkProxiesHTTPProxy)))
httpPort := C.CFNumberRef(C.CFDictionaryGetValue(cfDictProxy, unsafe.Pointer(C.kCFNetworkProxiesHTTPPort)))
httpProxy := fmt.Sprintf("%s:%d", cfStringGetGoString(httpHost), cfNumberGetGoInt(httpPort))
darwinProxyConf.Static.Protocols["http"] = httpProxy
}
cfNumHttpsEnable := C.CFNumberRef(C.CFDictionaryGetValue(cfDictProxy, unsafe.Pointer(C.kCFNetworkProxiesHTTPSEnable)))
if unsafe.Pointer(cfNumHttpsEnable) != C.NULL && cfNumberGetGoInt(cfNumHttpsEnable) > 0 {
darwinProxyConf.Static.Active = true
if darwinProxyConf.Static.Protocols == nil {
darwinProxyConf.Static.Protocols = make(map[string]string)
}
httpsHost := C.CFStringRef(C.CFDictionaryGetValue(cfDictProxy, unsafe.Pointer(C.kCFNetworkProxiesHTTPSProxy)))
httpsPort := C.CFNumberRef(C.CFDictionaryGetValue(cfDictProxy, unsafe.Pointer(C.kCFNetworkProxiesHTTPSPort)))
httpProxy := fmt.Sprintf("%s:%d", cfStringGetGoString(httpsHost), cfNumberGetGoInt(httpsPort))
darwinProxyConf.Static.Protocols["https"] = httpProxy
}
if darwinProxyConf.Static.Active {
cfArrayExceptionList := C.CFArrayRef(C.CFDictionaryGetValue(cfDictProxy, unsafe.Pointer(C.kCFNetworkProxiesExceptionsList)))
if unsafe.Pointer(cfArrayExceptionList) != C.NULL {
exceptionList := cfArrayGetGoStrings(cfArrayExceptionList)
darwinProxyConf.Static.NoProxy = strings.Join(exceptionList, ",")
}
}
cfNumPacEnable := C.CFNumberRef(C.CFDictionaryGetValue(cfDictProxy, unsafe.Pointer(C.kCFNetworkProxiesProxyAutoConfigEnable)))
if unsafe.Pointer(cfNumPacEnable) != C.NULL && cfNumberGetGoInt(cfNumPacEnable) > 0 {
cfStringPac := C.CFStringRef(C.CFDictionaryGetValue(cfDictProxy, unsafe.Pointer(C.kCFNetworkProxiesProxyAutoConfigURLString)))
if unsafe.Pointer(cfStringPac) != C.NULL {
pac := cfStringGetGoString(cfStringPac)
darwinProxyConf.Automatic.PreConfiguredURL = pac
darwinProxyConf.Automatic.Active = true
}
}
}
// OverrideEnvWithStaticProxy writes new values to the
// http_proxy, https_proxy and no_proxy environment variables.
// The values are taken from the MacOS System Preferences.
func overrideEnvWithStaticProxy(conf ProxyConf, setenv envSetter) {
if conf.Static.Active {
for _, scheme := range []string{"http", "https"} {
url := conf.Static.Protocols[scheme]
if url != "" {
setenv(scheme+"_proxy", url)
}
}
if conf.Static.NoProxy != "" {
setenv("no_proxy", conf.Static.NoProxy)
}
}
}
|
