1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "ios/web/public/user_agent.h"
7 #import <UIKit/UIKit.h>
9 #include <sys/sysctl.h>
12 #include "base/mac/scoped_nsobject.h"
13 #include "base/strings/string_util.h"
14 #include "base/strings/stringprintf.h"
15 #include "base/strings/sys_string_conversions.h"
16 #include "base/sys_info.h"
21 const char* safari_version_string;
22 const char* webkit_version_string;
26 int32 major_os_version;
27 int32 minor_os_version;
28 UAVersions ua_versions;
31 const UAVersions& GetUAVersionsForCurrentOS() {
32 // The WebKit version can be extracted dynamically from UIWebView, but the
33 // Safari version can't be, so a lookup table is used instead (for both, since
34 // the reported versions should stay in sync).
35 static const OSVersionMap version_map[] = {
36 { 8, 0, { "600.1.4", "600.1.4" } },
37 { 7, 1, { "9537.53", "537.51.2" } },
38 { 7, 0, { "9537.53", "537.51.1" } },
39 // 6.1 has the same values as 6.0.
40 { 6, 0, { "8536.25", "536.26" } },
43 int32 os_major_version = 0;
44 int32 os_minor_version = 0;
45 int32 os_bugfix_version = 0;
46 base::SysInfo::OperatingSystemVersionNumbers(&os_major_version,
50 // Return the versions corresponding to the first (and thus highest) OS
51 // version less than or equal to the given OS version.
52 for (unsigned int i = 0; i < arraysize(version_map); ++i) {
53 if (os_major_version > version_map[i].major_os_version ||
54 (os_major_version == version_map[i].major_os_version &&
55 os_minor_version >= version_map[i].minor_os_version))
56 return version_map[i].ua_versions;
59 return version_map[arraysize(version_map) - 1].ua_versions;
62 std::string BuildOSCpuInfo() {
63 int32 os_major_version = 0;
64 int32 os_minor_version = 0;
65 int32 os_bugfix_version = 0;
66 base::SysInfo::OperatingSystemVersionNumbers(&os_major_version,
69 std::string os_version;
70 if (os_bugfix_version == 0) {
71 base::StringAppendF(&os_version,
76 base::StringAppendF(&os_version,
83 // Remove the end of the platform name. For example "iPod touch" becomes
85 std::string platform = base::SysNSStringToUTF8(
86 [[UIDevice currentDevice] model]);
87 size_t position = platform.find_first_of(" ");
88 if (position != std::string::npos)
89 platform = platform.substr(0, position);
94 "%s; CPU %s %s like Mac OS X",
96 (platform == "iPad") ? "OS" : "iPhone OS",
106 std::string BuildUserAgentFromProduct(const std::string& product) {
107 // Retrieve the kernel build number.
108 int mib[2] = {CTL_KERN, KERN_OSVERSION};
109 unsigned int namelen = sizeof(mib) / sizeof(mib[0]);
110 size_t bufferSize = 0;
111 sysctl(mib, namelen, nullptr, &bufferSize, nullptr, 0);
112 char kernel_version[bufferSize];
113 int result = sysctl(mib, namelen, kernel_version, &bufferSize, nullptr, 0);
116 UAVersions ua_versions = GetUAVersionsForCurrentOS();
118 std::string user_agent;
119 base::StringAppendF(&user_agent,
120 "Mozilla/5.0 (%s) AppleWebKit/%s"
121 " (KHTML, like Gecko) %s Mobile/%s Safari/%s",
122 BuildOSCpuInfo().c_str(),
123 ua_versions.webkit_version_string,
126 ua_versions.safari_version_string);