晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 .
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Current File : /home/stando/www/wp-content/plugins/w3-total-cache/lib/Aws/Aws/CloudFront/CloudFrontClient.php
<?php
namespace Aws\CloudFront;

use Aws\AwsClient;

/**
 * This client is used to interact with the **Amazon CloudFront** service.
 *
 * @method \Aws\Result createCloudFrontOriginAccessIdentity(array $args = [])
 * @method \GuzzleHttp\Promise\Promise createCloudFrontOriginAccessIdentityAsync(array $args = [])
 * @method \Aws\Result createDistribution(array $args = [])
 * @method \GuzzleHttp\Promise\Promise createDistributionAsync(array $args = [])
 * @method \Aws\Result createInvalidation(array $args = [])
 * @method \GuzzleHttp\Promise\Promise createInvalidationAsync(array $args = [])
 * @method \Aws\Result createStreamingDistribution(array $args = [])
 * @method \GuzzleHttp\Promise\Promise createStreamingDistributionAsync(array $args = [])
 * @method \Aws\Result deleteCloudFrontOriginAccessIdentity(array $args = [])
 * @method \GuzzleHttp\Promise\Promise deleteCloudFrontOriginAccessIdentityAsync(array $args = [])
 * @method \Aws\Result deleteDistribution(array $args = [])
 * @method \GuzzleHttp\Promise\Promise deleteDistributionAsync(array $args = [])
 * @method \Aws\Result deleteStreamingDistribution(array $args = [])
 * @method \GuzzleHttp\Promise\Promise deleteStreamingDistributionAsync(array $args = [])
 * @method \Aws\Result getCloudFrontOriginAccessIdentity(array $args = [])
 * @method \GuzzleHttp\Promise\Promise getCloudFrontOriginAccessIdentityAsync(array $args = [])
 * @method \Aws\Result getCloudFrontOriginAccessIdentityConfig(array $args = [])
 * @method \GuzzleHttp\Promise\Promise getCloudFrontOriginAccessIdentityConfigAsync(array $args = [])
 * @method \Aws\Result getDistribution(array $args = [])
 * @method \GuzzleHttp\Promise\Promise getDistributionAsync(array $args = [])
 * @method \Aws\Result getDistributionConfig(array $args = [])
 * @method \GuzzleHttp\Promise\Promise getDistributionConfigAsync(array $args = [])
 * @method \Aws\Result getInvalidation(array $args = [])
 * @method \GuzzleHttp\Promise\Promise getInvalidationAsync(array $args = [])
 * @method \Aws\Result getStreamingDistribution(array $args = [])
 * @method \GuzzleHttp\Promise\Promise getStreamingDistributionAsync(array $args = [])
 * @method \Aws\Result getStreamingDistributionConfig(array $args = [])
 * @method \GuzzleHttp\Promise\Promise getStreamingDistributionConfigAsync(array $args = [])
 * @method \Aws\Result listCloudFrontOriginAccessIdentities(array $args = [])
 * @method \GuzzleHttp\Promise\Promise listCloudFrontOriginAccessIdentitiesAsync(array $args = [])
 * @method \Aws\Result listDistributions(array $args = [])
 * @method \GuzzleHttp\Promise\Promise listDistributionsAsync(array $args = [])
 * @method \Aws\Result listDistributionsByWebACLId(array $args = [])
 * @method \GuzzleHttp\Promise\Promise listDistributionsByWebACLIdAsync(array $args = [])
 * @method \Aws\Result listInvalidations(array $args = [])
 * @method \GuzzleHttp\Promise\Promise listInvalidationsAsync(array $args = [])
 * @method \Aws\Result listStreamingDistributions(array $args = [])
 * @method \GuzzleHttp\Promise\Promise listStreamingDistributionsAsync(array $args = [])
 * @method \Aws\Result updateCloudFrontOriginAccessIdentity(array $args = [])
 * @method \GuzzleHttp\Promise\Promise updateCloudFrontOriginAccessIdentityAsync(array $args = [])
 * @method \Aws\Result updateDistribution(array $args = [])
 * @method \GuzzleHttp\Promise\Promise updateDistributionAsync(array $args = [])
 * @method \Aws\Result updateStreamingDistribution(array $args = [])
 * @method \GuzzleHttp\Promise\Promise updateStreamingDistributionAsync(array $args = [])
 * @method \Aws\Result createDistributionWithTags(array $args = []) (supported in versions 2016-08-01, 2016-08-20, 2016-09-07, 2016-09-29, 2016-11-25, 2017-03-25, 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \GuzzleHttp\Promise\Promise createDistributionWithTagsAsync(array $args = []) (supported in versions 2016-08-01, 2016-08-20, 2016-09-07, 2016-09-29, 2016-11-25, 2017-03-25, 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \Aws\Result createStreamingDistributionWithTags(array $args = []) (supported in versions 2016-08-01, 2016-08-20, 2016-09-07, 2016-09-29, 2016-11-25, 2017-03-25, 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \GuzzleHttp\Promise\Promise createStreamingDistributionWithTagsAsync(array $args = []) (supported in versions 2016-08-01, 2016-08-20, 2016-09-07, 2016-09-29, 2016-11-25, 2017-03-25, 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \Aws\Result listTagsForResource(array $args = []) (supported in versions 2016-08-01, 2016-08-20, 2016-09-07, 2016-09-29, 2016-11-25, 2017-03-25, 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \GuzzleHttp\Promise\Promise listTagsForResourceAsync(array $args = []) (supported in versions 2016-08-01, 2016-08-20, 2016-09-07, 2016-09-29, 2016-11-25, 2017-03-25, 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \Aws\Result tagResource(array $args = []) (supported in versions 2016-08-01, 2016-08-20, 2016-09-07, 2016-09-29, 2016-11-25, 2017-03-25, 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \GuzzleHttp\Promise\Promise tagResourceAsync(array $args = []) (supported in versions 2016-08-01, 2016-08-20, 2016-09-07, 2016-09-29, 2016-11-25, 2017-03-25, 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \Aws\Result untagResource(array $args = []) (supported in versions 2016-08-01, 2016-08-20, 2016-09-07, 2016-09-29, 2016-11-25, 2017-03-25, 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \GuzzleHttp\Promise\Promise untagResourceAsync(array $args = []) (supported in versions 2016-08-01, 2016-08-20, 2016-09-07, 2016-09-29, 2016-11-25, 2017-03-25, 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \Aws\Result deleteServiceLinkedRole(array $args = []) (supported in versions 2017-03-25)
 * @method \GuzzleHttp\Promise\Promise deleteServiceLinkedRoleAsync(array $args = []) (supported in versions 2017-03-25)
 * @method \Aws\Result createFieldLevelEncryptionConfig(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \GuzzleHttp\Promise\Promise createFieldLevelEncryptionConfigAsync(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \Aws\Result createFieldLevelEncryptionProfile(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \GuzzleHttp\Promise\Promise createFieldLevelEncryptionProfileAsync(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \Aws\Result createPublicKey(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \GuzzleHttp\Promise\Promise createPublicKeyAsync(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \Aws\Result deleteFieldLevelEncryptionConfig(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \GuzzleHttp\Promise\Promise deleteFieldLevelEncryptionConfigAsync(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \Aws\Result deleteFieldLevelEncryptionProfile(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \GuzzleHttp\Promise\Promise deleteFieldLevelEncryptionProfileAsync(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \Aws\Result deletePublicKey(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \GuzzleHttp\Promise\Promise deletePublicKeyAsync(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \Aws\Result getFieldLevelEncryption(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \GuzzleHttp\Promise\Promise getFieldLevelEncryptionAsync(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \Aws\Result getFieldLevelEncryptionConfig(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \GuzzleHttp\Promise\Promise getFieldLevelEncryptionConfigAsync(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \Aws\Result getFieldLevelEncryptionProfile(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \GuzzleHttp\Promise\Promise getFieldLevelEncryptionProfileAsync(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \Aws\Result getFieldLevelEncryptionProfileConfig(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \GuzzleHttp\Promise\Promise getFieldLevelEncryptionProfileConfigAsync(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \Aws\Result getPublicKey(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \GuzzleHttp\Promise\Promise getPublicKeyAsync(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \Aws\Result getPublicKeyConfig(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \GuzzleHttp\Promise\Promise getPublicKeyConfigAsync(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \Aws\Result listFieldLevelEncryptionConfigs(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \GuzzleHttp\Promise\Promise listFieldLevelEncryptionConfigsAsync(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \Aws\Result listFieldLevelEncryptionProfiles(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \GuzzleHttp\Promise\Promise listFieldLevelEncryptionProfilesAsync(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \Aws\Result listPublicKeys(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \GuzzleHttp\Promise\Promise listPublicKeysAsync(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \Aws\Result updateFieldLevelEncryptionConfig(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \GuzzleHttp\Promise\Promise updateFieldLevelEncryptionConfigAsync(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \Aws\Result updateFieldLevelEncryptionProfile(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \GuzzleHttp\Promise\Promise updateFieldLevelEncryptionProfileAsync(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \Aws\Result updatePublicKey(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 * @method \GuzzleHttp\Promise\Promise updatePublicKeyAsync(array $args = []) (supported in versions 2017-10-30, 2018-06-18, 2018-11-05)
 */
class CloudFrontClient extends AwsClient
{
    /**
     * Create a signed Amazon CloudFront URL.
     *
     * This method accepts an array of configuration options:
     *
     * - url: (string)  URL of the resource being signed (can include query
     *   string and wildcards). For example: rtmp://s5c39gqb8ow64r.cloudfront.net/videos/mp3_name.mp3
     *   http://d111111abcdef8.cloudfront.net/images/horizon.jpg?size=large&license=yes
     * - policy: (string) JSON policy. Use this option when creating a signed
     *   URL for a custom policy.
     * - expires: (int) UTC Unix timestamp used when signing with a canned
     *   policy. Not required when passing a custom 'policy' option.
     * - key_pair_id: (string) The ID of the key pair used to sign CloudFront
     *   URLs for private distributions.
     * - private_key: (string) The filepath ot the private key used to sign
     *   CloudFront URLs for private distributions.
     *
     * @param array $options Array of configuration options used when signing
     *
     * @return string Signed URL with authentication parameters
     * @throws \InvalidArgumentException if url, key_pair_id, or private_key
     *     were not specified.
     * @link http://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/WorkingWithStreamingDistributions.html
     */
    public function getSignedUrl(array $options)
    {
        foreach (['url', 'key_pair_id', 'private_key'] as $required) {
            if (!isset($options[$required])) {
                throw new \InvalidArgumentException("$required is required");
            }
        }

        $urlSigner = new UrlSigner(
            $options['key_pair_id'],
            $options['private_key']
        );

        return $urlSigner->getSignedUrl(
            $options['url'],
            isset($options['expires']) ? $options['expires'] : null,
            isset($options['policy']) ? $options['policy'] : null
        );
    }

    /**
     * Create a signed Amazon CloudFront cookie.
     *
     * This method accepts an array of configuration options:
     *
     * - url: (string)  URL of the resource being signed (can include query
     *   string and wildcards). For example: http://d111111abcdef8.cloudfront.net/images/horizon.jpg?size=large&license=yes
     * - policy: (string) JSON policy. Use this option when creating a signed
     *   URL for a custom policy.
     * - expires: (int) UTC Unix timestamp used when signing with a canned
     *   policy. Not required when passing a custom 'policy' option.
     * - key_pair_id: (string) The ID of the key pair used to sign CloudFront
     *   URLs for private distributions.
     * - private_key: (string) The filepath ot the private key used to sign
     *   CloudFront URLs for private distributions.
     *
     * @param array $options Array of configuration options used when signing
     *
     * @return array Key => value pairs of signed cookies to set
     * @throws \InvalidArgumentException if url, key_pair_id, or private_key
     *     were not specified.
     * @link http://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/WorkingWithStreamingDistributions.html
     */
    public function getSignedCookie(array $options)
    {
        foreach (['key_pair_id', 'private_key'] as $required) {
            if (!isset($options[$required])) {
                throw new \InvalidArgumentException("$required is required");
            }
        }

        $cookieSigner = new CookieSigner(
            $options['key_pair_id'],
            $options['private_key']
        );

        return $cookieSigner->getSignedCookie(
            isset($options['url']) ? $options['url'] : null,
            isset($options['expires']) ? $options['expires'] : null,
            isset($options['policy']) ? $options['policy'] : null
        );
    }
}

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