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// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/proxy_resolution/proxy_list.h"
#include <vector>
#include "base/cxx17_backports.h"
#include "net/base/net_errors.h"
#include "net/base/proxy_server.h"
#include "net/log/net_log_with_source.h"
#include "net/proxy_resolution/proxy_retry_info.h"
#include "net/test/gtest_util.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
using net::test::IsOk;
namespace net {
namespace {
// Test parsing from a PAC string.
TEST(ProxyListTest, SetFromPacString) {
const struct {
const char* pac_input;
const char* pac_output;
} tests[] = {
// Valid inputs:
{ "PROXY foopy:10",
"PROXY foopy:10",
},
{ " DIRECT", // leading space.
"DIRECT",
},
{ "PROXY foopy1 ; proxy foopy2;\t DIRECT",
"PROXY foopy1:80;PROXY foopy2:80;DIRECT",
},
{ "proxy foopy1 ; SOCKS foopy2",
"PROXY foopy1:80;SOCKS foopy2:1080",
},
// Try putting DIRECT first.
{ "DIRECT ; proxy foopy1 ; DIRECT ; SOCKS5 foopy2;DIRECT ",
"DIRECT;PROXY foopy1:80;DIRECT;SOCKS5 foopy2:1080;DIRECT",
},
// Try putting DIRECT consecutively.
{ "DIRECT ; proxy foopy1:80; DIRECT ; DIRECT",
"DIRECT;PROXY foopy1:80;DIRECT;DIRECT",
},
// Invalid inputs (parts which aren't understood get
// silently discarded):
//
// If the proxy list string parsed to empty, automatically fall-back to
// DIRECT.
{ "PROXY-foopy:10",
"DIRECT",
},
{ "PROXY",
"DIRECT",
},
{ "PROXY foopy1 ; JUNK ; JUNK ; SOCKS5 foopy2 ; ;",
"PROXY foopy1:80;SOCKS5 foopy2:1080",
},
};
for (size_t i = 0; i < base::size(tests); ++i) {
ProxyList list;
list.SetFromPacString(tests[i].pac_input);
EXPECT_EQ(tests[i].pac_output, list.ToPacString());
EXPECT_FALSE(list.IsEmpty());
}
}
TEST(ProxyListTest, RemoveProxiesWithoutScheme) {
const struct {
const char* pac_input;
int filter;
const char* filtered_pac_output;
} tests[] = {
{ "PROXY foopy:10 ; SOCKS5 foopy2 ; SOCKS foopy11 ; PROXY foopy3 ; DIRECT",
// Remove anything that isn't HTTP or DIRECT.
ProxyServer::SCHEME_DIRECT | ProxyServer::SCHEME_HTTP,
"PROXY foopy:10;PROXY foopy3:80;DIRECT",
},
{ "PROXY foopy:10 ; SOCKS5 foopy2",
// Remove anything that isn't HTTP or SOCKS5.
ProxyServer::SCHEME_DIRECT | ProxyServer::SCHEME_SOCKS4,
"",
},
};
for (size_t i = 0; i < base::size(tests); ++i) {
ProxyList list;
list.SetFromPacString(tests[i].pac_input);
list.RemoveProxiesWithoutScheme(tests[i].filter);
EXPECT_EQ(tests[i].filtered_pac_output, list.ToPacString());
}
}
TEST(ProxyListTest, DeprioritizeBadProxies) {
// Retry info that marks a proxy as being bad for a *very* long time (to avoid
// the test depending on the current time.)
ProxyRetryInfo proxy_retry_info;
proxy_retry_info.bad_until =
base::TimeTicks::Now() + base::TimeDelta::FromDays(1);
// Call DeprioritizeBadProxies with an empty map -- should have no effect.
{
ProxyList list;
list.SetFromPacString("PROXY foopy1:80;PROXY foopy2:80;PROXY foopy3:80");
ProxyRetryInfoMap retry_info_map;
list.DeprioritizeBadProxies(retry_info_map);
EXPECT_EQ("PROXY foopy1:80;PROXY foopy2:80;PROXY foopy3:80",
list.ToPacString());
}
// Call DeprioritizeBadProxies with 2 of the three proxies marked as bad.
// These proxies should be retried last.
{
ProxyList list;
list.SetFromPacString("PROXY foopy1:80;PROXY foopy2:80;PROXY foopy3:80");
ProxyRetryInfoMap retry_info_map;
retry_info_map["foopy1:80"] = proxy_retry_info;
retry_info_map["foopy3:80"] = proxy_retry_info;
retry_info_map["socks5://localhost:1080"] = proxy_retry_info;
list.DeprioritizeBadProxies(retry_info_map);
EXPECT_EQ("PROXY foopy2:80;PROXY foopy1:80;PROXY foopy3:80",
list.ToPacString());
}
// Call DeprioritizeBadProxies where ALL of the proxies are marked as bad.
// This should have no effect on the order.
{
ProxyList list;
list.SetFromPacString("PROXY foopy1:80;PROXY foopy2:80;PROXY foopy3:80");
ProxyRetryInfoMap retry_info_map;
retry_info_map["foopy1:80"] = proxy_retry_info;
retry_info_map["foopy2:80"] = proxy_retry_info;
retry_info_map["foopy3:80"] = proxy_retry_info;
list.DeprioritizeBadProxies(retry_info_map);
EXPECT_EQ("PROXY foopy1:80;PROXY foopy2:80;PROXY foopy3:80",
list.ToPacString());
}
// Call DeprioritizeBadProxies with 2 of the three proxies marked as bad. Of
// the 2 bad proxies, one is to be reconsidered and should be retried last.
// The other is not to be reconsidered and should be removed from the list.
{
ProxyList list;
list.SetFromPacString("PROXY foopy1:80;PROXY foopy2:80;PROXY foopy3:80");
ProxyRetryInfoMap retry_info_map;
// |proxy_retry_info.reconsider defaults to true.
retry_info_map["foopy1:80"] = proxy_retry_info;
proxy_retry_info.try_while_bad = false;
retry_info_map["foopy3:80"] = proxy_retry_info;
proxy_retry_info.try_while_bad = true;
retry_info_map["socks5://localhost:1080"] = proxy_retry_info;
list.DeprioritizeBadProxies(retry_info_map);
EXPECT_EQ("PROXY foopy2:80;PROXY foopy1:80",
list.ToPacString());
}
}
TEST(ProxyListTest, UpdateRetryInfoOnFallback) {
ProxyRetryInfo proxy_retry_info;
// Retrying should put the first proxy on the retry list.
{
ProxyList list;
ProxyRetryInfoMap retry_info_map;
NetLogWithSource net_log;
ProxyServer proxy_server(
ProxyServer::FromURI("foopy1:80", ProxyServer::SCHEME_HTTP));
std::vector<ProxyServer> bad_proxies;
bad_proxies.push_back(proxy_server);
list.SetFromPacString("PROXY foopy1:80;PROXY foopy2:80;PROXY foopy3:80");
list.UpdateRetryInfoOnFallback(
&retry_info_map, base::TimeDelta::FromSeconds(60), true, bad_proxies,
ERR_PROXY_CONNECTION_FAILED, net_log);
EXPECT_TRUE(retry_info_map.end() != retry_info_map.find("foopy1:80"));
EXPECT_EQ(ERR_PROXY_CONNECTION_FAILED,
retry_info_map[proxy_server.ToURI()].net_error);
EXPECT_TRUE(retry_info_map.end() == retry_info_map.find("foopy2:80"));
EXPECT_TRUE(retry_info_map.end() == retry_info_map.find("foopy3:80"));
}
// Retrying should put the first proxy on the retry list, even if there
// was no network error.
{
ProxyList list;
ProxyRetryInfoMap retry_info_map;
NetLogWithSource net_log;
ProxyServer proxy_server(
ProxyServer::FromURI("foopy1:80", ProxyServer::SCHEME_HTTP));
std::vector<ProxyServer> bad_proxies;
bad_proxies.push_back(proxy_server);
list.SetFromPacString("PROXY foopy1:80;PROXY foopy2:80;PROXY foopy3:80");
list.UpdateRetryInfoOnFallback(&retry_info_map,
base::TimeDelta::FromSeconds(60), true,
bad_proxies, OK, net_log);
EXPECT_TRUE(retry_info_map.end() != retry_info_map.find("foopy1:80"));
EXPECT_THAT(retry_info_map[proxy_server.ToURI()].net_error, IsOk());
EXPECT_TRUE(retry_info_map.end() == retry_info_map.find("foopy2:80"));
EXPECT_TRUE(retry_info_map.end() == retry_info_map.find("foopy3:80"));
}
// Including another bad proxy should put both the first and the specified
// proxy on the retry list.
{
ProxyList list;
ProxyRetryInfoMap retry_info_map;
NetLogWithSource net_log;
ProxyServer proxy_server = ProxyServer::FromURI("foopy3:80",
ProxyServer::SCHEME_HTTP);
std::vector<ProxyServer> bad_proxies;
bad_proxies.push_back(proxy_server);
list.SetFromPacString("PROXY foopy1:80;PROXY foopy2:80;PROXY foopy3:80");
list.UpdateRetryInfoOnFallback(
&retry_info_map, base::TimeDelta::FromSeconds(60), true, bad_proxies,
ERR_NAME_RESOLUTION_FAILED, net_log);
EXPECT_TRUE(retry_info_map.end() != retry_info_map.find("foopy1:80"));
EXPECT_EQ(ERR_NAME_RESOLUTION_FAILED,
retry_info_map[proxy_server.ToURI()].net_error);
EXPECT_TRUE(retry_info_map.end() == retry_info_map.find("foopy2:80"));
EXPECT_TRUE(retry_info_map.end() != retry_info_map.find("foopy3:80"));
}
// If the first proxy is DIRECT, nothing is added to the retry list, even
// if another bad proxy is specified.
{
ProxyList list;
ProxyRetryInfoMap retry_info_map;
NetLogWithSource net_log;
ProxyServer proxy_server = ProxyServer::FromURI("foopy2:80",
ProxyServer::SCHEME_HTTP);
std::vector<ProxyServer> bad_proxies;
bad_proxies.push_back(proxy_server);
list.SetFromPacString("DIRECT;PROXY foopy2:80;PROXY foopy3:80");
list.UpdateRetryInfoOnFallback(&retry_info_map,
base::TimeDelta::FromSeconds(60), true,
bad_proxies, OK, net_log);
EXPECT_TRUE(retry_info_map.end() == retry_info_map.find("foopy2:80"));
EXPECT_TRUE(retry_info_map.end() == retry_info_map.find("foopy3:80"));
}
// If the bad proxy is already on the retry list, and the old retry info would
// cause the proxy to be retried later than the newly specified retry info,
// then the old retry info should be kept.
{
ProxyList list;
ProxyRetryInfoMap retry_info_map;
NetLogWithSource net_log;
list.SetFromPacString("PROXY foopy1:80;PROXY foopy2:80;PROXY foopy3:80");
// First, mark the proxy as bad for 60 seconds.
list.UpdateRetryInfoOnFallback(
&retry_info_map, base::TimeDelta::FromSeconds(60), true,
std::vector<ProxyServer>(), ERR_PROXY_CONNECTION_FAILED, net_log);
// Next, mark the same proxy as bad for 1 second. This call should have no
// effect, since this would cause the bad proxy to be retried sooner than
// the existing retry info.
list.UpdateRetryInfoOnFallback(&retry_info_map,
base::TimeDelta::FromSeconds(1), false,
std::vector<ProxyServer>(), OK, net_log);
EXPECT_TRUE(retry_info_map.end() != retry_info_map.find("foopy1:80"));
EXPECT_EQ(ERR_PROXY_CONNECTION_FAILED,
retry_info_map["foopy1:80"].net_error);
EXPECT_TRUE(retry_info_map["foopy1:80"].try_while_bad);
EXPECT_EQ(base::TimeDelta::FromSeconds(60),
retry_info_map["foopy1:80"].current_delay);
EXPECT_GT(retry_info_map["foopy1:80"].bad_until,
base::TimeTicks::Now() + base::TimeDelta::FromSeconds(30));
EXPECT_TRUE(retry_info_map.end() == retry_info_map.find("foopy2:80"));
EXPECT_TRUE(retry_info_map.end() == retry_info_map.find("foopy3:80"));
}
// If the bad proxy is already on the retry list, and the newly specified
// retry info would cause the proxy to be retried later than the old retry
// info, then the old retry info should be replaced with the new retry info.
{
ProxyList list;
ProxyRetryInfoMap retry_info_map;
NetLogWithSource net_log;
list.SetFromPacString("PROXY foopy1:80;PROXY foopy2:80;PROXY foopy3:80");
// First, mark the proxy as bad for 1 second.
list.UpdateRetryInfoOnFallback(&retry_info_map,
base::TimeDelta::FromSeconds(1), false,
std::vector<ProxyServer>(), OK, net_log);
// Next, mark the same proxy as bad for 60 seconds. This call should replace
// the existing retry info with the new 60 second retry info.
list.UpdateRetryInfoOnFallback(
&retry_info_map, base::TimeDelta::FromSeconds(60), true,
std::vector<ProxyServer>(), ERR_PROXY_CONNECTION_FAILED, net_log);
EXPECT_TRUE(retry_info_map.end() != retry_info_map.find("foopy1:80"));
EXPECT_EQ(ERR_PROXY_CONNECTION_FAILED,
retry_info_map["foopy1:80"].net_error);
EXPECT_TRUE(retry_info_map["foopy1:80"].try_while_bad);
EXPECT_EQ(base::TimeDelta::FromSeconds(60),
retry_info_map["foopy1:80"].current_delay);
EXPECT_GT(retry_info_map["foopy1:80"].bad_until,
base::TimeTicks::Now() + base::TimeDelta::FromSeconds(30));
EXPECT_TRUE(retry_info_map.end() == retry_info_map.find("foopy2:80"));
EXPECT_TRUE(retry_info_map.end() == retry_info_map.find("foopy3:80"));
}
}
} // anonymous namespace
} // namespace net