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| 1 | <?php |
| 2 | /** |
| 3 | * The site's provisioned MailChannels sub-account. |
| 4 | * |
| 5 | * @package automattic/jetpack-send |
| 6 | */ |
| 7 | |
| 8 | namespace Automattic\Jetpack\Send; |
| 9 | |
| 10 | use WP_Error; |
| 11 | |
| 12 | if ( ! defined( 'ABSPATH' ) ) { |
| 13 | exit( 0 ); |
| 14 | } |
| 15 | |
| 16 | /** |
| 17 | * Reads and writes the `jetpack_send_account` option. |
| 18 | */ |
| 19 | class Account { |
| 20 | |
| 21 | /** |
| 22 | * Option name. |
| 23 | * |
| 24 | * @var string |
| 25 | */ |
| 26 | const OPTION = 'jetpack_send_account'; |
| 27 | |
| 28 | /** |
| 29 | * The stored account, or null when the site isn't set up. |
| 30 | * |
| 31 | * @return array|null |
| 32 | */ |
| 33 | public static function get() { |
| 34 | $account = get_option( self::OPTION ); |
| 35 | return is_array( $account ) && ! empty( $account['api_key'] ) ? $account : null; |
| 36 | } |
| 37 | |
| 38 | /** |
| 39 | * Replace the stored account. |
| 40 | * |
| 41 | * @param array $account Account. |
| 42 | * @return void |
| 43 | */ |
| 44 | public static function save( array $account ) { |
| 45 | update_option( self::OPTION, $account, false ); |
| 46 | } |
| 47 | |
| 48 | /** |
| 49 | * Merge changes into the stored account, if there is one. |
| 50 | * |
| 51 | * @param array $changes Keys to change. |
| 52 | * @return void |
| 53 | */ |
| 54 | public static function update( array $changes ) { |
| 55 | $account = self::get(); |
| 56 | if ( $account ) { |
| 57 | self::save( array_merge( $account, $changes ) ); |
| 58 | } |
| 59 | } |
| 60 | |
| 61 | /** |
| 62 | * Delete the option. |
| 63 | * |
| 64 | * @return void |
| 65 | */ |
| 66 | public static function delete() { |
| 67 | delete_option( self::OPTION ); |
| 68 | } |
| 69 | |
| 70 | /** |
| 71 | * The account without its API key, for REST responses. |
| 72 | * |
| 73 | * @param array|null $account Account. |
| 74 | * @return array|null |
| 75 | */ |
| 76 | public static function to_public( $account ) { |
| 77 | if ( ! is_array( $account ) ) { |
| 78 | return null; |
| 79 | } |
| 80 | unset( $account['api_key'] ); |
| 81 | |
| 82 | $zone = (string) ( $account['dns_host']['apex'] ?? '' ); |
| 83 | if ( '' === $zone ) { |
| 84 | $zone = (string) ( $account['domain'] ?? '' ); |
| 85 | } |
| 86 | foreach ( (array) ( $account['dns_records'] ?? array() ) as $i => $record ) { |
| 87 | $account['dns_records'][ $i ]['host'] = self::relative_host( (string) ( $record['name'] ?? '' ), $zone ); |
| 88 | } |
| 89 | return $account; |
| 90 | } |
| 91 | |
| 92 | /** |
| 93 | * A record name relative to its DNS zone, as most providers' host fields expect. |
| 94 | * |
| 95 | * @param string $name Full record name. |
| 96 | * @param string $zone Zone root, e.g. `example.com`. |
| 97 | * @return string The short host, `@` for the zone root, or the name unchanged when outside the zone. |
| 98 | */ |
| 99 | public static function relative_host( $name, $zone ) { |
| 100 | $name = strtolower( rtrim( $name, '.' ) ); |
| 101 | $zone = strtolower( rtrim( $zone, '.' ) ); |
| 102 | if ( '' === $zone ) { |
| 103 | return $name; |
| 104 | } |
| 105 | if ( $name === $zone ) { |
| 106 | return '@'; |
| 107 | } |
| 108 | $suffix = '.' . $zone; |
| 109 | return substr( $name, -strlen( $suffix ) ) === $suffix ? substr( $name, 0, -strlen( $suffix ) ) : $name; |
| 110 | } |
| 111 | |
| 112 | /** |
| 113 | * Validate a provisioner result and shape it into an account. |
| 114 | * |
| 115 | * @param array $result Provisioner::provision() result. |
| 116 | * @param string $domain Sending domain. |
| 117 | * @param string $provider Provisioner type. |
| 118 | * @return array|WP_Error |
| 119 | */ |
| 120 | public static function from_provision( array $result, $domain, $provider ) { |
| 121 | foreach ( array( 'handle', 'api_key', 'lockdown_auth_id' ) as $key ) { |
| 122 | if ( empty( $result[ $key ] ) || ! is_string( $result[ $key ] ) ) { |
| 123 | return new WP_Error( 'jetpack_send_bad_provision', __( 'The sending account could not be created. Please try again.', 'jetpack-send-pkg' ), array( 'status' => 502 ) ); |
| 124 | } |
| 125 | } |
| 126 | |
| 127 | $records = self::clean_records( $result['dns_records'] ?? array() ); |
| 128 | $dkim_selector = ''; |
| 129 | foreach ( $records as $record ) { |
| 130 | if ( 'dkim' === $record['purpose'] && false !== strpos( $record['name'], '._domainkey.' ) ) { |
| 131 | $dkim_selector = (string) strstr( $record['name'], '._domainkey.', true ); |
| 132 | } |
| 133 | } |
| 134 | |
| 135 | return array( |
| 136 | 'handle' => $result['handle'], |
| 137 | 'api_key' => $result['api_key'], |
| 138 | 'lockdown_auth_id' => $result['lockdown_auth_id'], |
| 139 | 'domain' => $domain, |
| 140 | 'dkim_selector' => $dkim_selector, |
| 141 | 'monthly_limit' => isset( $result['monthly_limit'] ) ? (int) $result['monthly_limit'] : -1, |
| 142 | 'dns_records' => $records, |
| 143 | 'zone_records' => self::clean_records( $result['zone_records'] ?? array() ), |
| 144 | 'provider' => $provider, |
| 145 | 'provisioned_at' => gmdate( 'c' ), |
| 146 | 'dns_check' => null, |
| 147 | ); |
| 148 | } |
| 149 | |
| 150 | /** |
| 151 | * Keep well-formed DNS records, cast to strings. |
| 152 | * |
| 153 | * @param mixed $records Records from a provisioner. |
| 154 | * @return array[] `{type, name, value, purpose, optional}`. |
| 155 | */ |
| 156 | private static function clean_records( $records ) { |
| 157 | $clean = array(); |
| 158 | foreach ( (array) $records as $record ) { |
| 159 | if ( ! is_array( $record ) || ! isset( $record['type'] ) || ! isset( $record['name'] ) || ! isset( $record['value'] ) || ! isset( $record['purpose'] ) ) { |
| 160 | continue; |
| 161 | } |
| 162 | $clean[] = array( |
| 163 | 'type' => (string) $record['type'], |
| 164 | 'name' => (string) $record['name'], |
| 165 | 'value' => (string) $record['value'], |
| 166 | 'purpose' => (string) $record['purpose'], |
| 167 | 'optional' => ! empty( $record['optional'] ), |
| 168 | ); |
| 169 | } |
| 170 | return $clean; |
| 171 | } |
| 172 | } |