Coverage Report

Created: 2025-11-16 07:46

next uncovered line (L), next uncovered region (R), next uncovered branch (B)
/src/serenity/Userland/Libraries/LibWeb/HTML/NavigatorID.cpp
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/*
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 * Copyright (c) 2022, Andrew Kaster <akaster@serenityos.org>
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 * Copyright (c) 2024, Jamie Mansfield <jmansfield@cadixdev.org>
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 *
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 * SPDX-License-Identifier: BSD-2-Clause
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 */
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#include <AK/ByteString.h>
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#include <LibWeb/HTML/NavigatorID.h>
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#include <LibWeb/Loader/ResourceLoader.h>
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#include <LibWeb/Loader/UserAgent.h>
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namespace Web::HTML {
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// https://html.spec.whatwg.org/multipage/system-state.html#dom-navigator-appversion
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String NavigatorIDMixin::app_version() const
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{
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    auto navigator_compatibility_mode = ResourceLoader::the().navigator_compatibility_mode();
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    // Must return the appropriate string that starts with "5.0 (", as follows:
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    // Let trail be the substring of default `User-Agent` value that follows the "Mozilla/" prefix.
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    auto user_agent_string = ResourceLoader::the().user_agent();
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    auto trail = MUST(user_agent_string.substring_from_byte_offset(strlen("Mozilla/"), user_agent_string.bytes().size() - strlen("Mozilla/")));
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    // If the navigator compatibility mode is Chrome or WebKit
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    if (navigator_compatibility_mode == NavigatorCompatibilityMode::Chrome || navigator_compatibility_mode == NavigatorCompatibilityMode::WebKit) {
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        // Return trail.
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        return trail;
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    }
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    // If the navigator compatibility mode is Gecko
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    if (navigator_compatibility_mode == NavigatorCompatibilityMode::Gecko) {
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        // If trail starts with "5.0 (Windows", then return "5.0 (Windows)".
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        if (trail.starts_with_bytes("5.0 (Windows"sv, CaseSensitivity::CaseSensitive))
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            return "5.0 (Windows)"_string;
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        // Otherwise, return the prefix of trail up to but not including the first U+003B (;), concatenated with the
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        // character U+0029 RIGHT PARENTHESIS. For example, "5.0 (Macintosh)", "5.0 (Android 10)", or "5.0 (X11)".
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        if (auto index = trail.find_byte_offset(';'); index.has_value()) {
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            StringBuilder output;
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            output.append(MUST(trail.substring_from_byte_offset(0, *index)));
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            output.append(')');
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            return MUST(output.to_string());
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        }
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        return trail;
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    }
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    VERIFY_NOT_REACHED();
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}
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// https://html.spec.whatwg.org/multipage/system-state.html#dom-navigator-platform
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String NavigatorIDMixin::platform() const
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{
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    // Must return a string representing the platform on which the browser is executing (e.g. "MacIntel", "Win32",
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    // "Linux x86_64", "Linux armv81") or, for privacy and compatibility, a string that is commonly returned on another
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    // platform.
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    // FIXME: Use some portion of the user agent string to make spoofing work 100%
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    return ResourceLoader::the().platform();
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}
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// https://html.spec.whatwg.org/multipage/system-state.html#dom-navigator-productsub
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String NavigatorIDMixin::product_sub() const
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{
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    auto navigator_compatibility_mode = ResourceLoader::the().navigator_compatibility_mode();
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    // Must return the appropriate string from the following list:
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    // If the navigator compatibility mode is Chrome or WebKit
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    if (navigator_compatibility_mode == NavigatorCompatibilityMode::Chrome || navigator_compatibility_mode == NavigatorCompatibilityMode::WebKit) {
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        // The string "20030107".
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        return "20030107"_string;
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    }
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    // If the navigator compatibility mode is Gecko
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    if (navigator_compatibility_mode == NavigatorCompatibilityMode::Gecko) {
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        // The string "20100101".
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        return "20100101"_string;
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    }
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    VERIFY_NOT_REACHED();
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}
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// https://html.spec.whatwg.org/multipage/system-state.html#dom-navigator-useragent
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String NavigatorIDMixin::user_agent() const
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{
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    // Must return the default `User-Agent` value.
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    return ResourceLoader::the().user_agent();
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}
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// https://html.spec.whatwg.org/multipage/system-state.html#dom-navigator-vendor
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String NavigatorIDMixin::vendor() const
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{
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    auto navigator_compatibility_mode = ResourceLoader::the().navigator_compatibility_mode();
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    // Must return the appropriate string from the following list:
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    // If the navigator compatibility mode is Chrome
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    if (navigator_compatibility_mode == NavigatorCompatibilityMode::Chrome) {
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        // The string "Google Inc.".
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        return "Google Inc."_string;
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    }
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    // If the navigator compatibility mode is Gecko
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    if (navigator_compatibility_mode == NavigatorCompatibilityMode::Gecko) {
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        // The empty string.
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        return ""_string;
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    }
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    // If the navigator compatibility mode is WebKit
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    if (navigator_compatibility_mode == NavigatorCompatibilityMode::WebKit) {
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        // The string "Apple Computer, Inc.".
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        return "Apple Computer, Inc."_string;
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    }
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    VERIFY_NOT_REACHED();
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}
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}