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3 years ago
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Geo_Database_Downloader.php
112 lines
| 1 | <?php |
| 2 | |
| 3 | namespace IAWP_SCOPED\IAWP; |
| 4 | |
| 5 | use DateInterval; |
| 6 | use DateTime; |
| 7 | use IAWP_SCOPED\Proper\Timezone; |
| 8 | use Throwable; |
| 9 | use ZipArchive; |
| 10 | class Geo_Database_Downloader |
| 11 | { |
| 12 | private $zip_download_url = 'https://assets.independentwp.com/iawp-geo-db-3.mmdb.zip'; |
| 13 | private $raw_download_url = 'https://assets.independentwp.com/iawp-geo-db-3.mmdb'; |
| 14 | // Calculated using `md5 iawp-geo-db-3.mmdb` |
| 15 | private $database_checksum = 'c78f1a702cda45ae2c3443d1b9911822'; |
| 16 | public function download() : void |
| 17 | { |
| 18 | if (!$this->should_download()) { |
| 19 | return; |
| 20 | } |
| 21 | \update_option('iawp_is_database_downloading', '1'); |
| 22 | $this->download_zip_database_and_extract(); |
| 23 | if (!$this->is_existing_database_valid()) { |
| 24 | $this->download_raw_database(); |
| 25 | } else { |
| 26 | } |
| 27 | \update_option('iawp_is_database_downloading', '0'); |
| 28 | $this->record_attempt(); |
| 29 | } |
| 30 | public function should_download() : bool |
| 31 | { |
| 32 | if (!$this->has_attempt_interval_elapsed()) { |
| 33 | return \false; |
| 34 | } |
| 35 | if (\get_option('iawp_is_database_downloading', '0') === '1') { |
| 36 | return \false; |
| 37 | } |
| 38 | if ($this->is_existing_database_valid()) { |
| 39 | $this->record_attempt(); |
| 40 | return \false; |
| 41 | } |
| 42 | return \true; |
| 43 | } |
| 44 | private function download_zip_database_and_extract() : void |
| 45 | { |
| 46 | \wp_remote_get($this->zip_download_url, ['stream' => \true, 'filename' => $this->path_to_database_zip(), 'timeout' => 60]); |
| 47 | try { |
| 48 | $zip = new ZipArchive(); |
| 49 | if ($zip->open($this->path_to_database_zip()) === \true) { |
| 50 | $zip->extractTo(\trailingslashit(\wp_upload_dir()['basedir'])); |
| 51 | $zip->close(); |
| 52 | } |
| 53 | } catch (Throwable $e) { |
| 54 | // It's ok to fail |
| 55 | } |
| 56 | \wp_delete_file($this->path_to_database_zip()); |
| 57 | } |
| 58 | private function download_raw_database() : void |
| 59 | { |
| 60 | \wp_remote_get($this->raw_download_url, ['stream' => \true, 'filename' => $this->path_to_database(), 'timeout' => 60]); |
| 61 | } |
| 62 | private function is_existing_database_valid() : bool |
| 63 | { |
| 64 | if (!\file_exists($this->path_to_database())) { |
| 65 | return \false; |
| 66 | } |
| 67 | try { |
| 68 | return \verify_file_md5($this->path_to_database(), $this->database_checksum); |
| 69 | } catch (Throwable $e) { |
| 70 | return \false; |
| 71 | } |
| 72 | } |
| 73 | private function has_attempt_interval_elapsed() : bool |
| 74 | { |
| 75 | $last_attempted_at = $this->last_attempted_at(); |
| 76 | $interval = new DateInterval('PT30M'); |
| 77 | if (\is_null($last_attempted_at)) { |
| 78 | return \true; |
| 79 | } |
| 80 | $is_past_interval_time = $last_attempted_at->add($interval) < new DateTime('now', Timezone::utc_timezone()); |
| 81 | if ($is_past_interval_time) { |
| 82 | return \true; |
| 83 | } |
| 84 | return \false; |
| 85 | } |
| 86 | private function last_attempted_at() : ?DateTime |
| 87 | { |
| 88 | $option_value = \get_option('iawp_geo_database_download_last_attempted_at', \false); |
| 89 | if (!$option_value) { |
| 90 | return null; |
| 91 | } |
| 92 | try { |
| 93 | return new DateTime($option_value, Timezone::utc_timezone()); |
| 94 | } catch (Throwable $e) { |
| 95 | return null; |
| 96 | } |
| 97 | } |
| 98 | private function record_attempt() : void |
| 99 | { |
| 100 | $now = new DateTime('now', Timezone::utc_timezone()); |
| 101 | \update_option('iawp_geo_database_download_last_attempted_at', $now->format('c')); |
| 102 | } |
| 103 | private function path_to_database_zip() : string |
| 104 | { |
| 105 | return \trailingslashit(\wp_upload_dir()['basedir']) . 'iawp-geo-db.zip'; |
| 106 | } |
| 107 | private function path_to_database() : string |
| 108 | { |
| 109 | return \trailingslashit(\wp_upload_dir()['basedir']) . 'iawp-geo-db.mmdb'; |
| 110 | } |
| 111 | } |
| 112 |