UserAgentQuirks.cpp   [plain text]

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#include "config.h"
#include "UserAgentQuirks.h"

#include "PublicSuffix.h"
#include "URL.h"

namespace WebCore {

// When editing the quirks in this file, be sure to update
// Tools/TestWebKitAPI/Tests/WebCore/UserAgentQuirks.cpp.

// Be careful with this quirk: it's an invitation for sites to use JavaScript
// that works in Chrome that WebKit cannot handle. Prefer other quirks instead.
static bool urlRequiresChromeBrowser(const URL& url)
{
    String baseDomain = topPrivatelyControlledDomain(url.host());

    // Needed for fonts on many sites to work with WebKit.
    // https://bugs.webkit.org/show_bug.cgi?id=147296
    if (baseDomain == "typekit.net" || baseDomain == "typekit.com")
        return true;

    // Shut off Chrome ads. Avoid missing features on maps.google.com. Avoid
    // receiving a terrible fallback version of calendar.google.com. Receive a
    // fancier plus.google.com.
    if (baseDomain.startsWith("google."))
        return true;

    // Needed for YouTube 360 with WebKitGTK+ and WPE (requires ENABLE_MEDIA_SOURCE).
    if (baseDomain == "youtube.com")
        return true;

    // Slack completely blocks users with WebKitGTK+'s standard user agent.
    if (baseDomain == "slack.com")
        return true;

    return false;
}

static bool urlRequiresMacintoshPlatform(const URL& url)
{
    String baseDomain = topPrivatelyControlledDomain(url.host());

    // At least finance.yahoo.com displays a mobile version with WebKitGTK+'s standard user agent.
    if (baseDomain == "yahoo.com")
        return true;

    // taobao.com displays a mobile version with WebKitGTK+'s standard user agent.
    if (baseDomain == "taobao.com")
        return true;

    // web.whatsapp.com completely blocks users with WebKitGTK+'s standard user agent.
    if (baseDomain == "whatsapp.com")
        return true;

    return false;
}

UserAgentQuirks UserAgentQuirks::quirksForURL(const URL& url)
{
    ASSERT(!url.isNull());
    UserAgentQuirks quirks;
    if (urlRequiresChromeBrowser(url))
        quirks.add(UserAgentQuirks::NeedsChromeBrowser);
    if (urlRequiresMacintoshPlatform(url))
        quirks.add(UserAgentQuirks::NeedsMacintoshPlatform);
    return quirks;
}

String UserAgentQuirks::stringForQuirk(UserAgentQuirk quirk)
{
    switch (quirk) {
    case NeedsChromeBrowser:
        // Get versions from https://chromium.googlesource.com/chromium/src.git
        return ASCIILiteral("Chrome/56.0.2891.4");
    case NeedsMacintoshPlatform:
        return ASCIILiteral("Macintosh; Intel Mac OS X 10_12");
    case NumUserAgentQuirks:
    default:
        ASSERT_NOT_REACHED();
    }
    return ASCIILiteral("");
}

}