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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Implementation of the Chrome Extensions Proxy Settings API.
#include "chrome/browser/extensions/api/proxy/proxy_api.h"
#include <memory>
#include <optional>
#include <utility>
#include "base/json/json_writer.h"
#include "base/strings/stringprintf.h"
#include "base/strings/utf_string_conversions.h"
#include "base/values.h"
#include "content/public/browser/browser_context.h"
#include "extensions/browser/event_router.h"
#include "extensions/browser/extensions_browser_client.h"
#include "net/base/net_errors.h"
namespace extensions {
namespace {
const char kProxyEventFatalKey[] = "fatal";
const char kProxyEventErrorKey[] = "error";
const char kProxyEventDetailsKey[] = "details";
const char kProxyEventOnProxyError[] = "proxy.onProxyError";
// Helper method to dispatch an event to a particular profile indicated by
// `browser_context_ptr`, but only if that BrowserContext is valid.
void DispatchEventToContext(void* browser_context_ptr,
events::HistogramValue histogram_value,
const std::string& event_name,
base::Value::List event_args) {
if (!ExtensionsBrowserClient::Get()->IsValidContext(browser_context_ptr)) {
return;
}
content::BrowserContext* context =
reinterpret_cast<content::BrowserContext*>(browser_context_ptr);
auto* event_router = EventRouter::Get(context);
// The extension system may not be available in the given profile.
if (!event_router) {
return;
}
auto event = std::make_unique<Event>(histogram_value, event_name,
std::move(event_args), context);
event_router->BroadcastEvent(std::move(event));
}
} // anonymous namespace
// static
ProxyEventRouter* ProxyEventRouter::GetInstance() {
return base::Singleton<ProxyEventRouter>::get();
}
ProxyEventRouter::ProxyEventRouter() = default;
ProxyEventRouter::~ProxyEventRouter() = default;
void ProxyEventRouter::OnProxyError(void* browser_context, int error_code) {
base::Value::List args;
base::Value::Dict dict;
dict.Set(kProxyEventFatalKey, true);
dict.Set(kProxyEventErrorKey, net::ErrorToString(error_code));
dict.Set(kProxyEventDetailsKey, std::string());
args.Append(base::Value(std::move(dict)));
if (browser_context) {
DispatchEventToContext(browser_context, events::PROXY_ON_PROXY_ERROR,
kProxyEventOnProxyError, std::move(args));
} else {
ExtensionsBrowserClient::Get()->BroadcastEventToRenderers(
events::PROXY_ON_PROXY_ERROR, kProxyEventOnProxyError, std::move(args),
/*dispatch_to_off_the_record_profiles=*/false);
}
}
void ProxyEventRouter::OnPACScriptError(void* browser_context,
int line_number,
const std::u16string& error) {
base::Value::List args;
base::Value::Dict dict;
dict.Set(kProxyEventFatalKey, false);
dict.Set(kProxyEventErrorKey, net::ErrorToString(net::ERR_PAC_SCRIPT_FAILED));
std::string error_msg = base::UTF16ToUTF8(error);
if (line_number != -1) {
error_msg =
base::StringPrintf("line: %d: %s", line_number, error_msg.c_str());
}
dict.Set(kProxyEventDetailsKey, error_msg);
args.Append(base::Value(std::move(dict)));
if (browser_context) {
DispatchEventToContext(browser_context, events::PROXY_ON_PROXY_ERROR,
kProxyEventOnProxyError, std::move(args));
} else {
ExtensionsBrowserClient::Get()->BroadcastEventToRenderers(
events::PROXY_ON_PROXY_ERROR, kProxyEventOnProxyError, std::move(args),
/*dispatch_to_off_the_record_profiles=*/false);
}
}
} // namespace extensions
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