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gecko/toolkit/system/unixproxy/nsUnixSystemProxySettings.cpp
Nicholas Nethercote 8c60d14a1a Bug 1050009 - Initialize pldhash tables with a length, not a capacity. r=roc. 
* * *
imported patch rm-dummy-params

--HG--
extra : rebase_source : c25987eb11bae197218d5fc53b77def19afa36ac
2014-08-06 06:31:21 -07:00

543 lines
17 KiB
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsISystemProxySettings.h"
#include "mozilla/ModuleUtils.h"
#include "nsIServiceManager.h"
#include "nsIGConfService.h"
#include "nsIURI.h"
#include "nsReadableUtils.h"
#include "nsArrayUtils.h"
#include "prnetdb.h"
#include "prenv.h"
#include "nsPrintfCString.h"
#include "nsNetUtil.h"
#include "nsISupportsPrimitives.h"
#include "nsIGSettingsService.h"
#include "nsInterfaceHashtable.h"
#include "mozilla/Attributes.h"
#include "nsIURI.h"
class nsUnixSystemProxySettings MOZ_FINAL : public nsISystemProxySettings {
public:
NS_DECL_ISUPPORTS
NS_DECL_NSISYSTEMPROXYSETTINGS
nsUnixSystemProxySettings()
: mSchemeProxySettings(4)
{
}
nsresult Init();
private:
~nsUnixSystemProxySettings() {}
nsCOMPtr<nsIGConfService> mGConf;
nsCOMPtr<nsIGSettingsService> mGSettings;
nsCOMPtr<nsIGSettingsCollection> mProxySettings;
nsInterfaceHashtable<nsCStringHashKey, nsIGSettingsCollection> mSchemeProxySettings;
bool IsProxyMode(const char* aMode);
nsresult SetProxyResultFromGConf(const char* aKeyBase, const char* aType, nsACString& aResult);
nsresult GetProxyFromGConf(const nsACString& aScheme, const nsACString& aHost, int32_t aPort, nsACString& aResult);
nsresult GetProxyFromGSettings(const nsACString& aScheme, const nsACString& aHost, int32_t aPort, nsACString& aResult);
nsresult SetProxyResultFromGSettings(const char* aKeyBase, const char* aType, nsACString& aResult);
};
NS_IMPL_ISUPPORTS(nsUnixSystemProxySettings, nsISystemProxySettings)
NS_IMETHODIMP
nsUnixSystemProxySettings::GetMainThreadOnly(bool *aMainThreadOnly)
{
// dbus prevents us from being threadsafe, but this routine should not block anyhow
*aMainThreadOnly = true;
return NS_OK;
}
nsresult
nsUnixSystemProxySettings::Init()
{
mGSettings = do_GetService(NS_GSETTINGSSERVICE_CONTRACTID);
if (mGSettings) {
mGSettings->GetCollectionForSchema(NS_LITERAL_CSTRING("org.gnome.system.proxy"),
getter_AddRefs(mProxySettings));
}
if (!mProxySettings) {
mGConf = do_GetService(NS_GCONFSERVICE_CONTRACTID);
}
return NS_OK;
}
bool
nsUnixSystemProxySettings::IsProxyMode(const char* aMode)
{
nsAutoCString mode;
return NS_SUCCEEDED(mGConf->GetString(NS_LITERAL_CSTRING("/system/proxy/mode"), mode)) &&
mode.EqualsASCII(aMode);
}
nsresult
nsUnixSystemProxySettings::GetPACURI(nsACString& aResult)
{
if (mProxySettings) {
nsCString proxyMode;
// Check if mode is auto
nsresult rv = mProxySettings->GetString(NS_LITERAL_CSTRING("mode"), proxyMode);
if (rv == NS_OK && proxyMode.EqualsLiteral("auto")) {
return mProxySettings->GetString(NS_LITERAL_CSTRING("autoconfig-url"), aResult);
}
/* The org.gnome.system.proxy schema has been found, but auto mode is not set.
* Don't try the GConf and return empty string. */
aResult.Truncate();
return NS_OK;
}
if (mGConf && IsProxyMode("auto")) {
return mGConf->GetString(NS_LITERAL_CSTRING("/system/proxy/autoconfig_url"),
aResult);
}
// Return an empty string when auto mode is not set.
aResult.Truncate();
return NS_OK;
}
static bool
IsInNoProxyList(const nsACString& aHost, int32_t aPort, const char* noProxyVal)
{
NS_ASSERTION(aPort >= 0, "Negative port?");
nsAutoCString noProxy(noProxyVal);
if (noProxy.EqualsLiteral("*"))
return true;
noProxy.StripWhitespace();
nsReadingIterator<char> pos;
nsReadingIterator<char> end;
noProxy.BeginReading(pos);
noProxy.EndReading(end);
while (pos != end) {
nsReadingIterator<char> last = pos;
nsReadingIterator<char> nextPos;
if (FindCharInReadable(',', last, end)) {
nextPos = last;
++nextPos;
} else {
last = end;
nextPos = end;
}
nsReadingIterator<char> colon = pos;
int32_t port = -1;
if (FindCharInReadable(':', colon, last)) {
++colon;
nsDependentCSubstring portStr(colon, last);
nsAutoCString portStr2(portStr); // We need this for ToInteger. String API's suck.
nsresult err;
port = portStr2.ToInteger(&err);
if (NS_FAILED(err)) {
port = -2; // don't match any port, so we ignore this pattern
}
--colon;
} else {
colon = last;
}
if (port == -1 || port == aPort) {
nsDependentCSubstring hostStr(pos, colon);
// By using StringEndsWith instead of an equality comparator, we can include sub-domains
if (StringEndsWith(aHost, hostStr, nsCaseInsensitiveCStringComparator()))
return true;
}
pos = nextPos;
}
return false;
}
static void SetProxyResult(const char* aType, const nsACString& aHost,
int32_t aPort, nsACString& aResult)
{
aResult.AppendASCII(aType);
aResult.Append(' ');
aResult.Append(aHost);
if (aPort > 0) {
aResult.Append(':');
aResult.Append(nsPrintfCString("%d", aPort));
}
}
static nsresult
GetProxyFromEnvironment(const nsACString& aScheme,
const nsACString& aHost,
int32_t aPort,
nsACString& aResult)
{
nsAutoCString envVar;
envVar.Append(aScheme);
envVar.AppendLiteral("_proxy");
const char* proxyVal = PR_GetEnv(envVar.get());
if (!proxyVal) {
proxyVal = PR_GetEnv("all_proxy");
if (!proxyVal) {
// Return failure so that the caller can detect the failure and
// fall back to other proxy detection (e.g., WPAD)
return NS_ERROR_FAILURE;
}
}
const char* noProxyVal = PR_GetEnv("no_proxy");
if (noProxyVal && IsInNoProxyList(aHost, aPort, noProxyVal)) {
aResult.AppendLiteral("DIRECT");
return NS_OK;
}
// Use our URI parser to crack the proxy URI
nsCOMPtr<nsIURI> proxyURI;
nsresult rv = NS_NewURI(getter_AddRefs(proxyURI), proxyVal);
NS_ENSURE_SUCCESS(rv, rv);
// Is there a way to specify "socks://" or something in these environment
// variables? I can't find any documentation.
bool isHTTP;
rv = proxyURI->SchemeIs("http", &isHTTP);
NS_ENSURE_SUCCESS(rv, rv);
if (!isHTTP)
return NS_ERROR_UNKNOWN_PROTOCOL;
nsAutoCString proxyHost;
rv = proxyURI->GetHost(proxyHost);
NS_ENSURE_SUCCESS(rv, rv);
int32_t proxyPort;
rv = proxyURI->GetPort(&proxyPort);
NS_ENSURE_SUCCESS(rv, rv);
SetProxyResult("PROXY", proxyHost, proxyPort, aResult);
return NS_OK;
}
nsresult
nsUnixSystemProxySettings::SetProxyResultFromGConf(const char* aKeyBase, const char* aType,
nsACString& aResult)
{
nsAutoCString hostKey;
hostKey.AppendASCII(aKeyBase);
hostKey.AppendLiteral("host");
nsAutoCString host;
nsresult rv = mGConf->GetString(hostKey, host);
NS_ENSURE_SUCCESS(rv, rv);
if (host.IsEmpty())
return NS_ERROR_FAILURE;
nsAutoCString portKey;
portKey.AppendASCII(aKeyBase);
portKey.AppendLiteral("port");
int32_t port;
rv = mGConf->GetInt(portKey, &port);
NS_ENSURE_SUCCESS(rv, rv);
/* When port is 0, proxy is not considered as enabled even if host is set. */
if (port == 0)
return NS_ERROR_FAILURE;
SetProxyResult(aType, host, port, aResult);
return NS_OK;
}
nsresult
nsUnixSystemProxySettings::SetProxyResultFromGSettings(const char* aKeyBase, const char* aType,
nsACString& aResult)
{
nsDependentCString key(aKeyBase);
nsCOMPtr<nsIGSettingsCollection> proxy_settings = mSchemeProxySettings.Get(key);
nsresult rv;
if (!proxy_settings) {
rv = mGSettings->GetCollectionForSchema(key, getter_AddRefs(proxy_settings));
NS_ENSURE_SUCCESS(rv, rv);
mSchemeProxySettings.Put(key, proxy_settings);
}
nsAutoCString host;
rv = proxy_settings->GetString(NS_LITERAL_CSTRING("host"), host);
NS_ENSURE_SUCCESS(rv, rv);
if (host.IsEmpty())
return NS_ERROR_FAILURE;
int32_t port;
rv = proxy_settings->GetInt(NS_LITERAL_CSTRING("port"), &port);
NS_ENSURE_SUCCESS(rv, rv);
/* When port is 0, proxy is not considered as enabled even if host is set. */
if (port == 0)
return NS_ERROR_FAILURE;
SetProxyResult(aType, host, port, aResult);
return NS_OK;
}
/* copied from nsProtocolProxyService.cpp --- we should share this! */
static void
proxy_MaskIPv6Addr(PRIPv6Addr &addr, uint16_t mask_len)
{
if (mask_len == 128)
return;
if (mask_len > 96) {
addr.pr_s6_addr32[3] = PR_htonl(
PR_ntohl(addr.pr_s6_addr32[3]) & (~0L << (128 - mask_len)));
}
else if (mask_len > 64) {
addr.pr_s6_addr32[3] = 0;
addr.pr_s6_addr32[2] = PR_htonl(
PR_ntohl(addr.pr_s6_addr32[2]) & (~0L << (96 - mask_len)));
}
else if (mask_len > 32) {
addr.pr_s6_addr32[3] = 0;
addr.pr_s6_addr32[2] = 0;
addr.pr_s6_addr32[1] = PR_htonl(
PR_ntohl(addr.pr_s6_addr32[1]) & (~0L << (64 - mask_len)));
}
else {
addr.pr_s6_addr32[3] = 0;
addr.pr_s6_addr32[2] = 0;
addr.pr_s6_addr32[1] = 0;
addr.pr_s6_addr32[0] = PR_htonl(
PR_ntohl(addr.pr_s6_addr32[0]) & (~0L << (32 - mask_len)));
}
}
static bool ConvertToIPV6Addr(const nsACString& aName,
PRIPv6Addr* aAddr, int32_t* aMask)
{
PRNetAddr addr;
// try to convert hostname to IP
if (PR_StringToNetAddr(PromiseFlatCString(aName).get(), &addr) != PR_SUCCESS)
return false;
// convert parsed address to IPv6
if (addr.raw.family == PR_AF_INET) {
// convert to IPv4-mapped address
PR_ConvertIPv4AddrToIPv6(addr.inet.ip, aAddr);
if (aMask) {
if (*aMask <= 32)
*aMask += 96;
else
return false;
}
} else if (addr.raw.family == PR_AF_INET6) {
// copy the address
memcpy(aAddr, &addr.ipv6.ip, sizeof(PRIPv6Addr));
} else {
return false;
}
return true;
}
static bool HostIgnoredByProxy(const nsACString& aIgnore,
const nsACString& aHost)
{
if (aIgnore.Equals(aHost, nsCaseInsensitiveCStringComparator()))
return true;
if (aIgnore.First() == '*' &&
StringEndsWith(aHost, nsDependentCSubstring(aIgnore, 1),
nsCaseInsensitiveCStringComparator()))
return true;
int32_t mask = 128;
nsReadingIterator<char> start;
nsReadingIterator<char> slash;
nsReadingIterator<char> end;
aIgnore.BeginReading(start);
aIgnore.BeginReading(slash);
aIgnore.EndReading(end);
if (FindCharInReadable('/', slash, end)) {
++slash;
nsDependentCSubstring maskStr(slash, end);
nsAutoCString maskStr2(maskStr);
nsresult err;
mask = maskStr2.ToInteger(&err);
if (NS_FAILED(err)) {
mask = 128;
}
--slash;
} else {
slash = end;
}
nsDependentCSubstring ignoreStripped(start, slash);
PRIPv6Addr ignoreAddr, hostAddr;
if (!ConvertToIPV6Addr(ignoreStripped, &ignoreAddr, &mask) ||
!ConvertToIPV6Addr(aHost, &hostAddr, nullptr))
return false;
proxy_MaskIPv6Addr(ignoreAddr, mask);
proxy_MaskIPv6Addr(hostAddr, mask);
return memcmp(&ignoreAddr, &hostAddr, sizeof(PRIPv6Addr)) == 0;
}
nsresult
nsUnixSystemProxySettings::GetProxyFromGConf(const nsACString& aScheme,
const nsACString& aHost,
int32_t aPort,
nsACString& aResult)
{
bool masterProxySwitch = false;
mGConf->GetBool(NS_LITERAL_CSTRING("/system/http_proxy/use_http_proxy"), &masterProxySwitch);
// if no proxy is set in GConf return NS_ERROR_FAILURE
if (!(IsProxyMode("manual") || masterProxySwitch)) {
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIArray> ignoreList;
if (NS_SUCCEEDED(mGConf->GetStringList(NS_LITERAL_CSTRING("/system/http_proxy/ignore_hosts"),
getter_AddRefs(ignoreList))) && ignoreList) {
uint32_t len = 0;
ignoreList->GetLength(&len);
for (uint32_t i = 0; i < len; ++i) {
nsCOMPtr<nsISupportsString> str = do_QueryElementAt(ignoreList, i);
if (str) {
nsAutoString s;
if (NS_SUCCEEDED(str->GetData(s)) && !s.IsEmpty()) {
if (HostIgnoredByProxy(NS_ConvertUTF16toUTF8(s), aHost)) {
aResult.AppendLiteral("DIRECT");
return NS_OK;
}
}
}
}
}
bool useHttpProxyForAll = false;
// This setting sometimes doesn't exist, don't bail on failure
mGConf->GetBool(NS_LITERAL_CSTRING("/system/http_proxy/use_same_proxy"), &useHttpProxyForAll);
nsresult rv;
if (!useHttpProxyForAll) {
rv = SetProxyResultFromGConf("/system/proxy/socks_", "SOCKS", aResult);
if (NS_SUCCEEDED(rv))
return rv;
}
if (aScheme.LowerCaseEqualsLiteral("http") || useHttpProxyForAll) {
rv = SetProxyResultFromGConf("/system/http_proxy/", "PROXY", aResult);
} else if (aScheme.LowerCaseEqualsLiteral("https")) {
rv = SetProxyResultFromGConf("/system/proxy/secure_", "PROXY", aResult);
} else if (aScheme.LowerCaseEqualsLiteral("ftp")) {
rv = SetProxyResultFromGConf("/system/proxy/ftp_", "PROXY", aResult);
} else {
rv = NS_ERROR_FAILURE;
}
return rv;
}
nsresult
nsUnixSystemProxySettings::GetProxyFromGSettings(const nsACString& aScheme,
const nsACString& aHost,
int32_t aPort,
nsACString& aResult)
{
nsCString proxyMode;
nsresult rv = mProxySettings->GetString(NS_LITERAL_CSTRING("mode"), proxyMode);
NS_ENSURE_SUCCESS(rv, rv);
// return NS_ERROR_FAILURE when no proxy is set
if (!proxyMode.EqualsLiteral("manual")) {
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIArray> ignoreList;
if (NS_SUCCEEDED(mProxySettings->GetStringList(NS_LITERAL_CSTRING("ignore-hosts"),
getter_AddRefs(ignoreList))) && ignoreList) {
uint32_t len = 0;
ignoreList->GetLength(&len);
for (uint32_t i = 0; i < len; ++i) {
nsCOMPtr<nsISupportsCString> str = do_QueryElementAt(ignoreList, i);
if (str) {
nsCString s;
if (NS_SUCCEEDED(str->GetData(s)) && !s.IsEmpty()) {
if (HostIgnoredByProxy(s, aHost)) {
aResult.AppendLiteral("DIRECT");
return NS_OK;
}
}
}
}
}
if (aScheme.LowerCaseEqualsLiteral("http")) {
rv = SetProxyResultFromGSettings("org.gnome.system.proxy.http", "PROXY", aResult);
} else if (aScheme.LowerCaseEqualsLiteral("https")) {
rv = SetProxyResultFromGSettings("org.gnome.system.proxy.https", "PROXY", aResult);
/* Try to use HTTP proxy when HTTPS proxy is not explicitly defined */
if (rv != NS_OK)
rv = SetProxyResultFromGSettings("org.gnome.system.proxy.http", "PROXY", aResult);
} else if (aScheme.LowerCaseEqualsLiteral("ftp")) {
rv = SetProxyResultFromGSettings("org.gnome.system.proxy.ftp", "PROXY", aResult);
} else {
rv = NS_ERROR_FAILURE;
}
if (rv != NS_OK) {
/* If proxy for scheme is not specified, use SOCKS proxy for all schemes */
rv = SetProxyResultFromGSettings("org.gnome.system.proxy.socks", "SOCKS", aResult);
}
if (NS_FAILED(rv)) {
aResult.AppendLiteral("DIRECT");
}
return NS_OK;
}
nsresult
nsUnixSystemProxySettings::GetProxyForURI(const nsACString & aSpec,
const nsACString & aScheme,
const nsACString & aHost,
const int32_t aPort,
nsACString & aResult)
{
if (mProxySettings) {
nsresult rv = GetProxyFromGSettings(aScheme, aHost, aPort, aResult);
if (NS_SUCCEEDED(rv))
return rv;
}
if (mGConf)
return GetProxyFromGConf(aScheme, aHost, aPort, aResult);
return GetProxyFromEnvironment(aScheme, aHost, aPort, aResult);
}
#define NS_UNIXSYSTEMPROXYSERVICE_CID /* 0fa3158c-d5a7-43de-9181-a285e74cf1d4 */\
{ 0x0fa3158c, 0xd5a7, 0x43de, \
{0x91, 0x81, 0xa2, 0x85, 0xe7, 0x4c, 0xf1, 0xd4 } }
NS_GENERIC_FACTORY_CONSTRUCTOR_INIT(nsUnixSystemProxySettings, Init)
NS_DEFINE_NAMED_CID(NS_UNIXSYSTEMPROXYSERVICE_CID);
static const mozilla::Module::CIDEntry kUnixProxyCIDs[] = {
{ &kNS_UNIXSYSTEMPROXYSERVICE_CID, false, nullptr, nsUnixSystemProxySettingsConstructor },
{ nullptr }
};
static const mozilla::Module::ContractIDEntry kUnixProxyContracts[] = {
{ NS_SYSTEMPROXYSETTINGS_CONTRACTID, &kNS_UNIXSYSTEMPROXYSERVICE_CID },
{ nullptr }
};
static const mozilla::Module kUnixProxyModule = {
mozilla::Module::kVersion,
kUnixProxyCIDs,
kUnixProxyContracts
};
NSMODULE_DEFN(nsUnixProxyModule) = &kUnixProxyModule;
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