Ly8gQ29weXJpZ2h0IChjKSAyMDE2LCB0aGUgRGFydCBwcm9qZWN0IGF1dGhvcnMuICBQbGVhc2Ugc2VlIHRoZSBBVVRIT1JTIGZpbGUKLy8gZm9yIGRldGFpbHMuIEFsbCByaWdodHMgcmVzZXJ2ZWQuIFVzZSBvZiB0aGlzIHNvdXJjZSBjb2RlIGlzIGdvdmVybmVkIGJ5IGEKLy8gQlNELXN0eWxlIGxpY2Vuc2UgdGhhdCBjYW4gYmUgZm91bmQgaW4gdGhlIExJQ0VOU0UgZmlsZS4KCnBhcnQgb2Ygb2JzZXJ2YWJsZS5zcmMucmVjb3JkczsKCkxpc3QvKjxFPiovIF9mcmVlemVJbkRldk1vZGUvKjxFPiovKExpc3QvKjxFPiovIGxpc3QpIHsKICBpZiAobGlzdCA9PSBudWxsKSByZXR1cm4gY29uc3QgW107CiAgYXNzZXJ0KCgpIHsKICAgIGxpc3QgPSBuZXcgTGlzdC8qPEU+Ki8gLnVubW9kaWZpYWJsZShsaXN0KTsKICAgIHJldHVybiB0cnVlOwogIH0pOwogIHJldHVybiBsaXN0Owp9CgovLy8gQSBbQ2hhbmdlUmVjb3JkXSB0aGF0IGRlbm90ZXMgYWRkaW5nIG9yIHJlbW92aW5nIG5vZGVzIGF0IFtpbmRleF0uCi8vLwovLy8gSXQgc2hvdWxkIGJlIGFzc3VtZWQgdGhhdCBlbGVtZW50cyBhcmUgW3JlbW92ZWRdICpiZWZvcmUqIGJlaW5nIGFkZGVkLgovLy8KLy8vIEEgW0xpc3Q8TGlzdENoYW5nZVJlY29yZD5dIGNhbiBiZSAicGxheWVkIGJhY2siIGFnYWluc3QgdGhlIFtMaXN0XSB1c2luZwovLy8gdGhlIGZpbmFsIGxpc3QgcG9zaXRpb25zIHRvIGZpZ3VyZSBvdXQgd2hpY2ggaXRlbSB3YXMgYWRkZWQgLSB0aGlzIHJlbW92ZXMKLy8vIHRoZSBuZWVkIHRvIGluY3VyIGNvc3RseSBHQyBvbiB0aGUgbW9zdCBjb21tb24gb3BlcmF0aW9uIChhZGRpbmcpLgpjbGFzcyBMaXN0Q2hhbmdlUmVjb3JkPEU+IGltcGxlbWVudHMgQ2hhbmdlUmVjb3JkIHsKICAvLy8gSG93IG1hbnkgZWxlbWVudHMgd2VyZSBhZGRlZCBhdCBbaW5kZXhdIChhZnRlciByZW1vdmluZyBlbGVtZW50cykuCiAgZmluYWwgaW50IGFkZGVkQ291bnQ7CgogIC8vLyBJbmRleCBvZiB3aGVyZSB0aGUgY2hhbmdlIG9jY3VycmVkLgogIGZpbmFsIGludCBpbmRleDsKCiAgLy8vIExpc3QgdGhhdCBjaGFuZ2VkLgogIGZpbmFsIExpc3Q8RT4gb2JqZWN0OwoKICAvLy8gRWxlbWVudHMgdGhhdCB3ZXJlIHJlbW92ZWQgc3RhcnRpbmcgYXQgW2luZGV4XSAoYmVmb3JlIGFkZGluZyBlbGVtZW50cykuCiAgZmluYWwgTGlzdDxFPiByZW1vdmVkOwoKICBmYWN0b3J5IExpc3RDaGFuZ2VSZWNvcmQoCiAgICBMaXN0PEU+IG9iamVjdCwKICAgIGludCBpbmRleCwgewogICAgTGlzdDxFPiByZW1vdmVkOiBjb25zdCBbXSwKICAgIGludCBhZGRlZENvdW50OiAwLAogIH0pIHsKICAgIHJldHVybiBuZXcgTGlzdENoYW5nZVJlY29yZC5fKG9iamVjdCwgaW5kZXgsIHJlbW92ZWQsIGFkZGVkQ291bnQpOwogIH0KCiAgLy8vIFJlY29yZHMgYW4gYGFkZGAgb3BlcmF0aW9uIGF0IGBvYmplY3RbaW5kZXhdYCBvZiBbYWRkZWRDb3VudF0gZWxlbWVudHMuCiAgTGlzdENoYW5nZVJlY29yZC5hZGQodGhpcy5vYmplY3QsIHRoaXMuaW5kZXgsIHRoaXMuYWRkZWRDb3VudCkKICAgICAgOiByZW1vdmVkID0gY29uc3QgW10gewogICAgX2Fzc2VydFZhbGlkU3RhdGUoKTsKICB9CgogIC8vLyBSZWNvcmRzIGEgYHJlbW92ZWAgb3BlcmF0aW9uIGF0IGBvYmplY3RbaW5kZXhdYCBvZiBbcmVtb3ZlZF0gZWxlbWVudHMuCiAgTGlzdENoYW5nZVJlY29yZC5yZW1vdmUodGhpcy5vYmplY3QsIHRoaXMuaW5kZXgsIExpc3Q8RT4gcmVtb3ZlZCkKICAgICAgOiB0aGlzLnJlbW92ZWQgPSBfZnJlZXplSW5EZXZNb2RlLyo8RT4qLyhyZW1vdmVkKSwKICAgICAgICB0aGlzLmFkZGVkQ291bnQgPSAwIHsKICAgIF9hc3NlcnRWYWxpZFN0YXRlKCk7CiAgfQoKICAvLy8gUmVjb3JkcyBhIGByZXBsYWNlYCBvcGVyYXRpb24gYXQgYG9iamVjdFtpbmRleF1gIG9mIFtyZW1vdmVkXSBlbGVtZW50cy4KICAvLy8KICAvLy8gSWYgW2FkZGVkQ291bnRdIGlzIG5vdCBzcGVjaWZpZWQgaXQgZGVmYXVsdHMgdG8gYHJlbW92ZWQubGVuZ3RoYC4KICBMaXN0Q2hhbmdlUmVjb3JkLnJlcGxhY2UodGhpcy5vYmplY3QsIHRoaXMuaW5kZXgsIExpc3Q8RT4gcmVtb3ZlZCwKICAgICAgW2ludCBhZGRlZENvdW50XSkKICAgICAgOiB0aGlzLnJlbW92ZWQgPSBfZnJlZXplSW5EZXZNb2RlLyo8RT4qLyhyZW1vdmVkKSwKICAgICAgICB0aGlzLmFkZGVkQ291bnQgPSBhZGRlZENvdW50ID8/IHJlbW92ZWQubGVuZ3RoIHsKICAgIF9hc3NlcnRWYWxpZFN0YXRlKCk7CiAgfQoKICBMaXN0Q2hhbmdlUmVjb3JkLl8oCiAgICB0aGlzLm9iamVjdCwKICAgIHRoaXMuaW5kZXgsCiAgICB0aGlzLnJlbW92ZWQsCiAgICB0aGlzLmFkZGVkQ291bnQsCiAgKSB7CiAgICBfYXNzZXJ0VmFsaWRTdGF0ZSgpOwogIH0KCiAgLy8vIFdoYXQgZWxlbWVudHMgd2VyZSBhZGRlZCB0byBbb2JqZWN0XS4KICBJdGVyYWJsZTxFPiBnZXQgYWRkZWQgewogICAgcmV0dXJuIGFkZGVkQ291bnQgPT0gMCA/IGNvbnN0IFtdIDogb2JqZWN0LmdldFJhbmdlKGluZGV4LCBhZGRlZENvdW50KTsKICB9CgogIC8vLyBBcHBseSB0aGlzIGNoYW5nZSByZWNvcmQgdG8gW2xpc3RdLgogIHZvaWQgYXBwbHkoTGlzdDxFPiBsaXN0KSB7CiAgICBsaXN0CiAgICAgIC4ucmVtb3ZlUmFuZ2UoaW5kZXgsIGluZGV4ICsgcmVtb3ZlZC5sZW5ndGgpCiAgICAgIC4uaW5zZXJ0QWxsKGluZGV4LCBvYmplY3QuZ2V0UmFuZ2UoaW5kZXgsIGluZGV4ICsgYWRkZWRDb3VudCkpOwogIH0KCiAgdm9pZCBfYXNzZXJ0VmFsaWRTdGF0ZSgpIHsKICAgIGFzc2VydCgoKSB7CiAgICAgIGlmIChvYmplY3QgPT0gbnVsbCkgewogICAgICAgIHRocm93IG5ldyBBcmd1bWVudEVycm9yLm5vdE51bGwoJ29iamVjdCcpOwogICAgICB9CiAgICAgIGlmIChpbmRleCA9PSBudWxsKSB7CiAgICAgICAgdGhyb3cgbmV3IEFyZ3VtZW50RXJyb3Iubm90TnVsbCgnaW5kZXgnKTsKICAgICAgfQogICAgICBpZiAocmVtb3ZlZCA9PSBudWxsKSB7CiAgICAgICAgdGhyb3cgbmV3IEFyZ3VtZW50RXJyb3Iubm90TnVsbCgncmVtb3ZlZCcpOwogICAgICB9CiAgICAgIGlmIChhZGRlZENvdW50ID09IG51bGwgfHwgYWRkZWRDb3VudCA8IDApIHsKICAgICAgICB0aHJvdyBuZXcgQXJndW1lbnRFcnJvcignSW52YWxpZCBgYWRkZWRDb3VudGA6ICRhZGRlZENvdW50Jyk7CiAgICAgIH0KICAgICAgcmV0dXJuIHRydWU7CiAgICB9KTsKICB9CgogIC8vLyBSZXR1cm5zIHdoZXRoZXIgW3JlZmVyZW5jZV0gaW5kZXggd2FzIGNoYW5nZWQgaW4gdGhpcyBvcGVyYXRpb24uCiAgYm9vbCBpbmRleENoYW5nZWQoaW50IHJlZmVyZW5jZSkgewogICAgLy8gSWYgcmVmZXJlbmNlIHdhcyBiZWZvcmUgdGhlIGNoYW5nZSB0aGVuIGl0IHdhc24ndCBjaGFuZ2VkLgogICAgaWYgKHJlZmVyZW5jZSA8IGluZGV4KSByZXR1cm4gZmFsc2U7CgogICAgLy8gSWYgdGhpcyB3YXMgYSBzaGlmdCBvcGVyYXRpb24gYW55dGhpbmcgYWZ0ZXIgaW5kZXggaXMgY2hhbmdlZC4KICAgIGlmIChhZGRlZENvdW50ICE9IHJlbW92ZWQubGVuZ3RoKSByZXR1cm4gdHJ1ZTsKCiAgICAvLyBPdGhlcndpc2UgYW55dGhpbmcgaW4gdGhlIHVwZGF0ZSByYW5nZSB3YXMgY2hhbmdlZC4KICAgIHJldHVybiByZWZlcmVuY2UgPCBpbmRleCArIGFkZGVkQ291bnQ7CiAgfQoKICBAb3ZlcnJpZGUKICBib29sIG9wZXJhdG9yID09KE9iamVjdCBvKSB7CiAgICBpZiAobyBpcyBMaXN0Q2hhbmdlUmVjb3JkPEU+KSB7CiAgICAgIHJldHVybiBpZGVudGlj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