Tools/TestWebKitAPI/Tests/WebKitCocoa/LockdownModeFonts.mm

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#import "config.h"

#import "PlatformUtilities.h"
#import "TestNavigationDelegate.h"
#import "TestWKWebView.h"

namespace TestWebKitAPI {

TEST(LockdownMode, SVGFonts)
{
    auto webViewConfiguration = adoptNS([WKWebViewConfiguration new]);
    webViewConfiguration.get().defaultWebpagePreferences.lockdownModeEnabled = YES;
    auto webView = adoptNS([[WKWebView alloc] initWithFrame:NSMakeRect(0, 0, 800, 600) configuration:webViewConfiguration.get()]);
    NSURL *url = [[NSBundle mainBundle] URLForResource:@"SVGFont" withExtension:@"html" subdirectory:@"TestWebKitAPI.resources"];
    [webView loadRequest:[NSURLRequest requestWithURL:url]];
    [webView _test_waitForDidFinishNavigation];

    auto target1Result = static_cast<NSNumber *>([webView objectByEvaluatingJavaScript:@"document.getElementById('target1').offsetWidth"]).intValue;
    auto target2Result = static_cast<NSNumber *>([webView objectByEvaluatingJavaScript:@"document.getElementById('target2').offsetWidth"]).intValue;
    auto referenceResult = static_cast<NSNumber *>([webView objectByEvaluatingJavaScript:@"document.getElementById('reference').offsetWidth"]).intValue;
    EXPECT_EQ(target1Result, referenceResult);
    EXPECT_EQ(target2Result, referenceResult);
}

TEST(LockdownMode, NotAllowedFontLoadingAPI)
{
    @autoreleasepool {
        auto webViewConfiguration = adoptNS([WKWebViewConfiguration new]);
        webViewConfiguration.get().defaultWebpagePreferences.lockdownModeEnabled = YES;
        auto webView = adoptNS([[WKWebView alloc] initWithFrame:NSMakeRect(0, 0, 800, 600) configuration:webViewConfiguration.get()]);
        NSURL *url = [[NSBundle mainBundle] URLForResource:@"ImmediateFont" withExtension:@"html" subdirectory:@"TestWebKitAPI.resources"];
        [webView loadRequest:[NSURLRequest requestWithURL:url]];
        [webView _test_waitForDidFinishNavigation];

        NSURL *fontURL = [[NSBundle mainBundle] URLForResource:@"Ahem" withExtension:@"ttf" subdirectory:@"TestWebKitAPI.resources"];
        NSData *fontData = [NSData dataWithContentsOfURL:fontURL];
        NSError *error = nil;
        NSMutableArray<NSNumber *> *array = [NSMutableArray arrayWithCapacity:fontData.length];
        const auto* fontBytes = static_cast<const uint8_t*>(fontData.bytes);
        for (NSUInteger i = 0; i < fontData.length; ++i)
            [array addObject:[NSNumber numberWithUnsignedChar:fontBytes[i]]];
        NSData *json = [NSJSONSerialization dataWithJSONObject:array options:0 error:&error];
        auto encoded = adoptNS([[NSString alloc] initWithData:json encoding:NSUTF8StringEncoding]);

        [webView objectByEvaluatingJavaScript:@""
            "let target = document.getElementById('target');"
            "let reference = document.getElementById('reference');"];
        auto beforeTargetResult = static_cast<NSNumber *>([webView objectByEvaluatingJavaScript:@"target.offsetWidth"]).intValue;
        [webView objectByEvaluatingJavaScript:[NSString stringWithFormat:@""
            "let fontData = new Uint8Array(%@);"
            "let font = new FontFace('WebFont', fontData);"
            "document.fonts.add(font);"
            "target.style.setProperty('font-family', 'WebFont, Helvetica');", encoded.get()]];
        auto targetResult = static_cast<NSNumber *>([webView objectByEvaluatingJavaScript:@"target.offsetWidth"]).intValue;
        auto referenceResult = static_cast<NSNumber *>([webView objectByEvaluatingJavaScript:@"reference.offsetWidth"]).intValue;

        EXPECT_NE(beforeTargetResult, targetResult);
        EXPECT_EQ(targetResult, referenceResult);
    }
}

TEST(LockdownMode, AllowedFontLoadingAPI)
{
    @autoreleasepool {
        auto webViewConfiguration = adoptNS([WKWebViewConfiguration new]);
        webViewConfiguration.get().defaultWebpagePreferences.lockdownModeEnabled = YES;
        auto webView = adoptNS([[WKWebView alloc] initWithFrame:NSMakeRect(0, 0, 800, 600) configuration:webViewConfiguration.get()]);
        NSURL *url = [[NSBundle mainBundle] URLForResource:@"ImmediateFont" withExtension:@"html" subdirectory:@"TestWebKitAPI.resources"];
        [webView loadRequest:[NSURLRequest requestWithURL:url]];
        [webView _test_waitForDidFinishNavigation];

        NSURL *fontURL = [[NSBundle mainBundle] URLForResource:@"Ahem-10000A" withExtension:@"ttf" subdirectory:@"TestWebKitAPI.resources"];
        NSData *fontData = [NSData dataWithContentsOfURL:fontURL];
        NSError *error = nil;
        NSMutableArray<NSNumber *> *array = [NSMutableArray arrayWithCapacity:fontData.length];
        const auto* fontBytes = static_cast<const uint8_t*>(fontData.bytes);
        for (NSUInteger i = 0; i < fontData.length; ++i)
            [array addObject:[NSNumber numberWithUnsignedChar:fontBytes[i]]];
        NSData *json = [NSJSONSerialization dataWithJSONObject:array options:0 error:&error];
        auto encoded = adoptNS([[NSString alloc] initWithData:json encoding:NSUTF8StringEncoding]);

        [webView objectByEvaluatingJavaScript:@""
            "let target = document.getElementById('target');"
            "let reference = document.getElementById('reference');"];
        auto beforeTargetResult = static_cast<NSNumber *>([webView objectByEvaluatingJavaScript:@"target.offsetWidth"]).intValue;
        [webView objectByEvaluatingJavaScript:[NSString stringWithFormat:@""
            "let fontData = new Uint8Array(%@);"
            "let font = new FontFace('WebFont', fontData);"
            "document.fonts.add(font);"
            "target.style.setProperty('font-family', 'WebFont, Helvetica');", encoded.get()]];
        auto targetResult = static_cast<NSNumber *>([webView objectByEvaluatingJavaScript:@"target.offsetWidth"]).intValue;
        auto referenceResult = static_cast<NSNumber *>([webView objectByEvaluatingJavaScript:@"reference.offsetWidth"]).intValue;

        EXPECT_NE(beforeTargetResult, targetResult);
        EXPECT_NE(targetResult, referenceResult);
    }
}

TEST(LockdownMode, AllowedFont)
{
    @autoreleasepool {
        auto webViewConfiguration = adoptNS([WKWebViewConfiguration new]);
        webViewConfiguration.get().defaultWebpagePreferences.lockdownModeEnabled = YES;
        auto webView = adoptNS([[WKWebView alloc] initWithFrame:NSMakeRect(0, 0, 800, 600) configuration:webViewConfiguration.get()]);
        NSURL *url = [[NSBundle mainBundle] URLForResource:@"LockdownModeFonts" withExtension:@"html" subdirectory:@"TestWebKitAPI.resources"];
        [webView loadRequest:[NSURLRequest requestWithURL:url]];
        [webView _test_waitForDidFinishNavigation];

        [webView objectByEvaluatingJavaScript:@""
            "let target = document.getElementById('target');"
            "let reference = document.getElementById('reference');"];
        auto targetResult = static_cast<NSNumber *>([webView objectByEvaluatingJavaScript:@"target.offsetWidth"]).intValue;
        auto referenceResult = static_cast<NSNumber *>([webView objectByEvaluatingJavaScript:@"reference.offsetWidth"]).intValue;

        EXPECT_NE(targetResult, referenceResult);
    }
}

TEST(LockdownMode, NotAllowedFont)
{
    @autoreleasepool {
        auto webViewConfiguration = adoptNS([WKWebViewConfiguration new]);
        webViewConfiguration.get().defaultWebpagePreferences.lockdownModeEnabled = YES;
        auto webView = adoptNS([[WKWebView alloc] initWithFrame:NSMakeRect(0, 0, 800, 600) configuration:webViewConfiguration.get()]);
        NSURL *url = [[NSBundle mainBundle] URLForResource:@"LockdownModeFonts" withExtension:@"html" subdirectory:@"TestWebKitAPI.resources"];
        [webView loadRequest:[NSURLRequest requestWithURL:url]];
        [webView _test_waitForDidFinishNavigation];

        [webView objectByEvaluatingJavaScript:@""
            "let target = document.getElementById('target-not-allowed');"
            "let reference = document.getElementById('reference');"];
        auto targetResult = static_cast<NSNumber *>([webView objectByEvaluatingJavaScript:@"target.offsetWidth"]).intValue;
        auto referenceResult = static_cast<NSNumber *>([webView objectByEvaluatingJavaScript:@"reference.offsetWidth"]).intValue;

#if PLATFORM(WATCHOS)
        EXPECT_NE(targetResult, referenceResult);
#else
        EXPECT_EQ(targetResult, referenceResult);
#endif
    }
}
}