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// Copyright 2014 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 "content/public/common/user_agent.h"
#include <stdint.h>
#include "base/feature_list.h"
#include "base/logging.h"
#include "base/strings/string_util.h"
#include "base/strings/stringprintf.h"
#include "base/sys_info.h"
#include "build/build_config.h"
#include "build/util/webkit_version.h"
#if defined(OS_WIN)
#include "base/win/windows_version.h"
#elif (defined(OS_POSIX) && !defined(OS_MACOSX)) || defined(OS_FUCHSIA)
#include <sys/utsname.h>
#endif
namespace content {
#if defined(OS_ANDROID)
const base::Feature kAndroidUserAgentStringContainsBuildId{
"AndroidUserAgentStringContainsBuildId", base::FEATURE_DISABLED_BY_DEFAULT};
#endif // defined(OS_ANDROID)
std::string GetWebKitVersion() {
return base::StringPrintf("%d.%d (%s)",
WEBKIT_VERSION_MAJOR,
WEBKIT_VERSION_MINOR,
WEBKIT_SVN_REVISION);
}
std::string GetWebKitRevision() {
return WEBKIT_SVN_REVISION;
}
std::string BuildOSCpuInfo(bool include_android_build_number) {
std::string os_cpu;
#if defined(OS_WIN) || defined(OS_MACOSX) || defined(OS_CHROMEOS) ||\
defined(OS_ANDROID)
int32_t os_major_version = 0;
int32_t os_minor_version = 0;
int32_t os_bugfix_version = 0;
base::SysInfo::OperatingSystemVersionNumbers(&os_major_version,
&os_minor_version,
&os_bugfix_version);
#endif
#if defined(OS_WIN)
std::string architecture_token;
base::win::OSInfo* os_info = base::win::OSInfo::GetInstance();
if (os_info->wow64_status() == base::win::OSInfo::WOW64_ENABLED) {
architecture_token = "; WOW64";
} else {
base::win::OSInfo::WindowsArchitecture windows_architecture =
os_info->architecture();
if (windows_architecture == base::win::OSInfo::X64_ARCHITECTURE)
architecture_token = "; Win64; x64";
else if (windows_architecture == base::win::OSInfo::IA64_ARCHITECTURE)
architecture_token = "; Win64; IA64";
}
#elif defined(OS_ANDROID)
std::string android_version_str = base::SysInfo::OperatingSystemVersion();
std::string android_info_str;
// Send information about the device.
bool semicolon_inserted = false;
std::string android_build_codename = base::SysInfo::GetAndroidBuildCodename();
std::string android_device_name = base::SysInfo::HardwareModelName();
if ("REL" == android_build_codename && android_device_name.size() > 0) {
android_info_str += "; " + android_device_name;
semicolon_inserted = true;
}
// Append the build ID.
if (base::FeatureList::IsEnabled(kAndroidUserAgentStringContainsBuildId) ||
include_android_build_number) {
std::string android_build_id = base::SysInfo::GetAndroidBuildID();
if (android_build_id.size() > 0) {
if (!semicolon_inserted) {
android_info_str += ";";
}
android_info_str += " Build/" + android_build_id;
}
}
#elif (defined(OS_POSIX) && !defined(OS_MACOSX)) || defined(OS_FUCHSIA)
// Should work on any Posix system.
struct utsname unixinfo;
uname(&unixinfo);
std::string cputype;
// special case for biarch systems
if (strcmp(unixinfo.machine, "x86_64") == 0 &&
sizeof(void*) == sizeof(int32_t)) { // NOLINT
cputype.assign("i686 (x86_64)");
} else {
cputype.assign(unixinfo.machine);
}
#endif
base::StringAppendF(
&os_cpu,
#if defined(OS_WIN)
"Windows NT %d.%d%s",
os_major_version,
os_minor_version,
architecture_token.c_str()
#elif defined(OS_MACOSX)
"Intel Mac OS X %d_%d_%d",
os_major_version,
os_minor_version,
os_bugfix_version
#elif defined(OS_CHROMEOS)
"CrOS "
"%s %d.%d.%d",
cputype.c_str(), // e.g. i686
os_major_version,
os_minor_version,
os_bugfix_version
#elif defined(OS_ANDROID)
"Android %s%s",
android_version_str.c_str(),
android_info_str.c_str()
#elif defined(OS_POSIX) || defined(OS_FUCHSIA)
"%s %s",
unixinfo.sysname, // e.g. Linux
cputype.c_str() // e.g. i686
#endif
); // NOLINT
return os_cpu;
}
std::string getUserAgentPlatform() {
return
#if defined(OS_WIN)
"";
#elif defined(OS_MACOSX)
"Macintosh; ";
#elif defined(USE_X11) || defined(USE_OZONE)
"X11; "; // strange, but that's what Firefox uses
#elif defined(OS_ANDROID)
"Linux; ";
#elif defined(OS_POSIX) || defined(OS_FUCHSIA)
"Unknown; ";
#endif
}
std::string BuildUserAgentFromProduct(const std::string& product) {
std::string os_info;
base::StringAppendF(&os_info, "%s%s", getUserAgentPlatform().c_str(),
BuildOSCpuInfo(false).c_str());
return BuildUserAgentFromOSAndProduct(os_info, product);
}
#if defined(OS_ANDROID)
std::string BuildUserAgentFromProductAndExtraOSInfo(
const std::string& product,
const std::string& extra_os_info,
const bool include_android_build_number) {
std::string os_info;
base::StringAppendF(&os_info, "%s%s%s", getUserAgentPlatform().c_str(),
BuildOSCpuInfo(include_android_build_number).c_str(),
extra_os_info.c_str());
return BuildUserAgentFromOSAndProduct(os_info, product);
}
#endif
std::string BuildUserAgentFromOSAndProduct(const std::string& os_info,
const std::string& product) {
// Derived from Safari's UA string.
// This is done to expose our product name in a manner that is maximally
// compatible with Safari, we hope!!
std::string user_agent;
base::StringAppendF(
&user_agent,
"Mozilla/5.0 (%s) AppleWebKit/%d.%d (KHTML, like Gecko) %s Safari/%d.%d",
os_info.c_str(),
WEBKIT_VERSION_MAJOR,
WEBKIT_VERSION_MINOR,
product.c_str(),
WEBKIT_VERSION_MAJOR,
WEBKIT_VERSION_MINOR);
return user_agent;
}
} // namespace content
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