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// Copyright (c) 2010 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/proxy_config.h"
#include "base/logging.h"
#include "base/string_number_conversions.h"
#include "base/string_tokenizer.h"
#include "base/string_util.h"
#include "net/proxy/proxy_info.h"
namespace net {
bool ProxyConfig::ProxyRules::Equals(const ProxyRules& other) const {
return type == other.type &&
single_proxy == other.single_proxy &&
proxy_for_http == other.proxy_for_http &&
proxy_for_https == other.proxy_for_https &&
proxy_for_ftp == other.proxy_for_ftp &&
socks_proxy == other.socks_proxy &&
bypass_rules.Equals(other.bypass_rules) &&
reverse_bypass == other.reverse_bypass;
}
void ProxyConfig::ProxyRules::Apply(const GURL& url, ProxyInfo* result) {
if (empty()) {
result->UseDirect();
return;
}
bool bypass_proxy = bypass_rules.Matches(url);
if (reverse_bypass)
bypass_proxy = !bypass_proxy;
if (bypass_proxy) {
result->UseDirect();
return;
}
switch (type) {
case ProxyRules::TYPE_SINGLE_PROXY: {
result->UseProxyServer(single_proxy);
return;
}
case ProxyRules::TYPE_PROXY_PER_SCHEME: {
const ProxyServer* entry = MapUrlSchemeToProxy(url.scheme());
if (entry) {
result->UseProxyServer(*entry);
} else {
// We failed to find a matching proxy server for the current URL
// scheme. Default to direct.
result->UseDirect();
}
return;
}
default: {
result->UseDirect();
NOTREACHED();
return;
}
}
}
void ProxyConfig::ProxyRules::ParseFromString(const std::string& proxy_rules) {
// Reset.
type = TYPE_NO_RULES;
single_proxy = ProxyServer();
proxy_for_http = ProxyServer();
proxy_for_https = ProxyServer();
proxy_for_ftp = ProxyServer();
socks_proxy = ProxyServer();
StringTokenizer proxy_server_list(proxy_rules, ";");
while (proxy_server_list.GetNext()) {
StringTokenizer proxy_server_for_scheme(
proxy_server_list.token_begin(), proxy_server_list.token_end(), "=");
while (proxy_server_for_scheme.GetNext()) {
std::string url_scheme = proxy_server_for_scheme.token();
// If we fail to get the proxy server here, it means that
// this is a regular proxy server configuration, i.e. proxies
// are not configured per protocol.
if (!proxy_server_for_scheme.GetNext()) {
if (type == TYPE_PROXY_PER_SCHEME)
continue; // Unexpected.
single_proxy = ProxyServer::FromURI(url_scheme,
ProxyServer::SCHEME_HTTP);
type = TYPE_SINGLE_PROXY;
return;
}
// Trim whitespace off the url scheme.
TrimWhitespaceASCII(url_scheme, TRIM_ALL, &url_scheme);
// Add it to the per-scheme mappings (if supported scheme).
type = TYPE_PROXY_PER_SCHEME;
if (ProxyServer* entry = MapSchemeToProxy(url_scheme)) {
std::string proxy_server_token = proxy_server_for_scheme.token();
ProxyServer::Scheme scheme = (entry == &socks_proxy) ?
ProxyServer::SCHEME_SOCKS4 : ProxyServer::SCHEME_HTTP;
*entry = ProxyServer::FromURI(proxy_server_token, scheme);
}
}
}
}
const ProxyServer* ProxyConfig::ProxyRules::MapUrlSchemeToProxy(
const std::string& url_scheme) const {
const ProxyServer* proxy_server =
const_cast<ProxyRules*>(this)->MapSchemeToProxy(url_scheme);
if (proxy_server && proxy_server->is_valid())
return proxy_server;
if (socks_proxy.is_valid())
return &socks_proxy;
return NULL; // No mapping for this scheme. Use direct.
}
ProxyServer* ProxyConfig::ProxyRules::MapSchemeToProxy(
const std::string& scheme) {
DCHECK(type == TYPE_PROXY_PER_SCHEME);
if (scheme == "http")
return &proxy_for_http;
if (scheme == "https")
return &proxy_for_https;
if (scheme == "ftp")
return &proxy_for_ftp;
if (scheme == "socks")
return &socks_proxy;
return NULL; // No mapping for this scheme.
}
ProxyConfig::ProxyConfig() : auto_detect_(false), id_(INVALID_ID) {
}
bool ProxyConfig::Equals(const ProxyConfig& other) const {
// The two configs can have different IDs. We are just interested in if they
// have the same settings.
return auto_detect_ == other.auto_detect_ &&
pac_url_ == other.pac_url_ &&
proxy_rules_.Equals(other.proxy_rules());
}
bool ProxyConfig::MayRequirePACResolver() const {
return auto_detect_ || has_pac_url();
}
} // namespace net
namespace {
// Helper to stringize a ProxyServer.
std::ostream& operator<<(std::ostream& out,
const net::ProxyServer& proxy_server) {
if (proxy_server.is_valid())
out << proxy_server.ToURI();
return out;
}
const char* BoolToYesNoString(bool b) {
return b ? "Yes" : "No";
}
} // namespace
std::ostream& operator<<(std::ostream& out,
const net::ProxyConfig::ProxyRules& rules) {
// Stringize the type enum.
std::string type;
switch (rules.type) {
case net::ProxyConfig::ProxyRules::TYPE_NO_RULES:
type = "TYPE_NO_RULES";
break;
case net::ProxyConfig::ProxyRules::TYPE_PROXY_PER_SCHEME:
type = "TYPE_PROXY_PER_SCHEME";
break;
case net::ProxyConfig::ProxyRules::TYPE_SINGLE_PROXY:
type = "TYPE_SINGLE_PROXY";
break;
default:
type = base::IntToString(rules.type);
break;
}
return out << " {\n"
<< " type: " << type << "\n"
<< " single_proxy: " << rules.single_proxy << "\n"
<< " proxy_for_http: " << rules.proxy_for_http << "\n"
<< " proxy_for_https: " << rules.proxy_for_https << "\n"
<< " proxy_for_ftp: " << rules.proxy_for_ftp << "\n"
<< " socks_proxy: " << rules.socks_proxy << "\n"
<< " }";
}
std::ostream& operator<<(std::ostream& out, const net::ProxyConfig& config) {
// "Automatic" settings.
out << "Automatic settings:\n";
out << " Auto-detect: " << BoolToYesNoString(config.auto_detect()) << "\n";
out << " Custom PAC script: ";
if (config.has_pac_url())
out << config.pac_url();
else
out << "[None]";
out << "\n";
// "Manual" settings.
out << "Manual settings:\n";
out << " Proxy server: ";
switch (config.proxy_rules().type) {
case net::ProxyConfig::ProxyRules::TYPE_NO_RULES:
out << "[None]\n";
break;
case net::ProxyConfig::ProxyRules::TYPE_SINGLE_PROXY:
out << config.proxy_rules().single_proxy;
out << "\n";
break;
case net::ProxyConfig::ProxyRules::TYPE_PROXY_PER_SCHEME:
out << "\n";
if (config.proxy_rules().proxy_for_http.is_valid())
out << " HTTP: " << config.proxy_rules().proxy_for_http << "\n";
if (config.proxy_rules().proxy_for_https.is_valid())
out << " HTTPS: " << config.proxy_rules().proxy_for_https << "\n";
if (config.proxy_rules().proxy_for_ftp.is_valid())
out << " FTP: " << config.proxy_rules().proxy_for_ftp << "\n";
if (config.proxy_rules().socks_proxy.is_valid())
out << " SOCKS: " << config.proxy_rules().socks_proxy << "\n";
break;
}
if (config.proxy_rules().reverse_bypass)
out << " Only use proxy for: ";
else
out << " Bypass list: ";
if (config.proxy_rules().bypass_rules.rules().empty()) {
out << "[None]";
} else {
const net::ProxyBypassRules& bypass_rules =
config.proxy_rules().bypass_rules;
net::ProxyBypassRules::RuleList::const_iterator it;
for (it = bypass_rules.rules().begin();
it != bypass_rules.rules().end(); ++it) {
out << "\n " << (*it)->ToString();
}
}
return out;
}
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