frederik
263 lines
9.5 KiB
PHP
263 lines
9.5 KiB
PHP
<?php
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if (session_status() !== PHP_SESSION_ACTIVE)
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session_start();
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function ensure_db_ok($sql_stmt) {
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if ($sql_stmt == False) {
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echo "Database is busy";
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header("refresh:1;");
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exit;
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}
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}
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function set_timezone() {
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if (!isset($_SESSION['my_timezone'])) {
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$_SESSION['my_timezone'] = trim(shell_exec('timedatectl show --value --property=Timezone'));
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}
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date_default_timezone_set($_SESSION['my_timezone']);
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}
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function get_config($force_reload = false) {
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$mtime = stat('/etc/birdnet/birdnet.conf')["mtime"];
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if (isset($_SESSION['my_config_version']) && $_SESSION['my_config_version'] !== $mtime) {
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$force_reload = true;
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}
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if (!isset($_SESSION['my_config']) || $force_reload) {
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$source = preg_replace("~^#+.*$~m", "", file_get_contents('/etc/birdnet/birdnet.conf'));
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$my_config = parse_ini_string($source);
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if ($my_config) {
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$_SESSION['my_config'] = $my_config;
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} else {
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syslog(LOG_ERR, "Cannot parse config");
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}
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$_SESSION['my_config_version'] = $mtime;
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}
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return $_SESSION['my_config'];
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}
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function get_user() {
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$config = get_config();
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$user = $config['BIRDNET_USER'];
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return $user;
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}
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function get_home() {
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$home = '/home/' . get_user();
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return $home;
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}
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function get_sitename() {
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$config = get_config();
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if ($config["SITE_NAME"] == "") {
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$site_name = "BirdNET-Pi";
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} else {
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$site_name = $config['SITE_NAME'];
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}
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return $site_name;
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}
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function get_service_mount_name() {
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$home = get_home();
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$service_mount = trim(shell_exec("systemd-escape -p --suffix=mount " . $home . "/BirdSongs/StreamData"));
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return $service_mount;
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}
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function is_authenticated() {
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$ret = false;
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if (isset($_SERVER['PHP_AUTH_USER']) && isset($_SERVER['PHP_AUTH_PW'])) {
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$config = get_config();
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$ret = ($_SERVER['PHP_AUTH_PW'] == $config['CADDY_PWD'] && $_SERVER['PHP_AUTH_USER'] == 'birdnet');
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}
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return $ret;
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}
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function ensure_authenticated($error_message = 'You cannot edit the settings for this installation') {
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if (!is_authenticated()) {
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header('WWW-Authenticate: Basic realm="My Realm"');
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header('HTTP/1.0 401 Unauthorized');
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echo '<table><tr><td>' . $error_message . '</td></tr></table>';
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exit;
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}
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}
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function debug_log($message) {
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if (is_bool($message)) {
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$message = $message ? 'true' : 'false';
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}
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error_log($message . "\n", 3, $_SERVER['DOCUMENT_ROOT'] . "/debug_log.log");
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}
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define('DB', './scripts/flickr.db');
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class Flickr {
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private $flickr_api_key = null;
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private $args = "&license=2%2C3%2C4%2C5%2C6%2C9&orientation=square,portrait";
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private $blacklisted_ids = [];
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private $db = null;
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private $licenses_urls = [];
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private $labels_flickr = null;
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private $flickr_email = null;
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private $comnameprefix = "%20bird";
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public function __construct() {
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$tbl_def = "CREATE TABLE images (sci_name VARCHAR(63) NOT NULL PRIMARY KEY, com_en_name VARCHAR(63) NOT NULL, image_url VARCHAR(63) NOT NULL, title VARCHAR(31) NOT NULL, id VARCHAR(31) NOT NULL UNIQUE, author_url VARCHAR(63) NOT NULL, license_url VARCHAR(63) NOT NULL, date_created DATE)";
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try {
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$db = new SQLite3(DB, SQLITE3_OPEN_READWRITE);
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} catch (Exception $ex) {
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$db = new SQLite3(DB);
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$db->exec($tbl_def);
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$db->exec('CREATE TABLE source (ID INTEGER PRIMARY KEY, email VARCHAR(63), uid VARCHAR(63), date_created DATE)');
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}
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$db->busyTimeout(1000);
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$this->db = $db;
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$blacklisted = get_home() . "/BirdNET-Pi/scripts/blacklisted_images.txt";
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if (file_exists($blacklisted)) {
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$blacklisted_file = file($blacklisted);
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if ($blacklisted_file) {
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$this->blacklisted_ids = array_map('trim', $blacklisted_file);
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}
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}
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$this->flickr_api_key = get_config()["FLICKR_API_KEY"];
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$this->flickr_email = get_config()["FLICKR_FILTER_EMAIL"];
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$source = $this->get_uid_from_db();
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if ($source['email'] !== $this->flickr_email) {
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// reset the DB
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$this->db->exec("DROP TABLE images; " . $tbl_def);
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if (!empty($this->flickr_email)) {
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$source = $this->get_uid_from_db();
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if ($source['email'] !== $this->flickr_email) {
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$this->get_uid_from_flickr();
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$source = $this->get_uid_from_db();
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}
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} else {
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$this->set_uid_in_db("");
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}
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}
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if (!empty($this->flickr_email)) {
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$this->args = "&user_id=" . $source['uid'];
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$this->comnameprefix = "";
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}
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}
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public function get_image($sci_name) {
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$image = $this->get_image_from_db($sci_name);
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if ($image !== false && in_array($image['id'], $this->blacklisted_ids)) {
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$image = false;
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}
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if ($image !== false) {
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$now = new DateTime();
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$datetime = DateTime::createFromFormat("Y-m-d", $image['date_created']);
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$interval = $now->diff($datetime);
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// use the last digit of the id as a semi random number, so not all entries expire at the same time
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$expire_days = 15 + intval($image['id'][-1]);
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if ($interval->days > $expire_days) {
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$image = false;
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}
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}
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if ($image === false) {
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$this->get_from_flickr($sci_name);
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$image = $this->get_image_from_db($sci_name);
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}
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return $image;
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}
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private function get_image_from_db($sci_name) {
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$statement0 = $this->db->prepare('SELECT sci_name, com_en_name, image_url, title, id, author_url, license_url, date_created FROM images WHERE sci_name == :sci_name');
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$statement0->bindValue(':sci_name', $sci_name);
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$result = $statement0->execute();
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$row = $result->fetchArray(SQLITE3_ASSOC);
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return $row;
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}
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private function set_image_in_db($sci_name, $com_en_name, $image_url, $title, $id, $author_url, $license_url) {
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$statement0 = $this->db->prepare("INSERT OR REPLACE INTO images VALUES (:sci_name, :com_en_name, :image_url, :title, :id, :author_url, :license_url, DATE(\"now\"))");
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$statement0->bindValue(':sci_name', $sci_name);
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$statement0->bindValue(':com_en_name', $com_en_name);
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$statement0->bindValue(':image_url', $image_url);
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$statement0->bindValue(':title', $title);
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$statement0->bindValue(':id', $id);
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$statement0->bindValue(':author_url', $author_url);
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$statement0->bindValue(':license_url', $license_url);
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$statement0->execute();
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}
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private function get_from_flickr($sci_name) {
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$engname = $this->get_com_en_name($sci_name);
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$flickrjson = json_decode(file_get_contents("https://www.flickr.com/services/rest/?method=flickr.photos.search&api_key=" . $this->flickr_api_key . "&text=" . str_replace(" ", "%20", $engname) . $this->comnameprefix . "&sort=relevance" . $this->args . "&per_page=5&media=photos&format=json&nojsoncallback=1"), true)["photos"]["photo"];
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// could be null!!
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// Find the first photo that is not blacklisted or is not the specific blacklisted id
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$photo = null;
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foreach ($flickrjson as $flickrphoto) {
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if ($flickrphoto["id"] !== "4892923285" && !in_array($flickrphoto["id"], $this->blacklisted_ids)) {
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$photo = $flickrphoto;
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break;
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}
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}
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$license_url = "https://api.flickr.com/services/rest/?method=flickr.photos.getInfo&api_key=" . $this->flickr_api_key . "&photo_id=" . $photo["id"] . "&format=json&nojsoncallback=1";
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$license_response = file_get_contents($license_url);
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$license_id = json_decode($license_response, true)["photo"]["license"];
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$license_url = $this->get_license_url($license_id);
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$authorlink = "https://flickr.com/people/" . $photo["owner"];
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$imageurl = 'https://farm' . $photo["farm"] . '.static.flickr.com/' . $photo["server"] . '/' . $photo["id"] . '_' . $photo["secret"] . '.jpg';
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$this->set_image_in_db($sci_name, $engname, $imageurl, $photo["title"], $photo["id"], $authorlink, $license_url);
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}
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private function get_license_url($id) {
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if (empty($this->licenses_urls)) {
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$licenses_url = "https://api.flickr.com/services/rest/?method=flickr.photos.licenses.getInfo&api_key=" . $this->flickr_api_key . "&format=json&nojsoncallback=1";
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$licenses_response = file_get_contents($licenses_url);
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$licenses_data = json_decode($licenses_response, true)["licenses"]["license"];
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foreach ($licenses_data as $license) {
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$license_id = $license["id"];
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$license_url = $license["url"];
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$this->licenses_urls[$license_id] = $license_url;
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}
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}
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return $this->licenses_urls[$id];
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}
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public function get_uid_from_db() {
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$statement0 = $this->db->prepare('SELECT email, uid, date_created FROM source');
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$result = $statement0->execute();
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$row = $result->fetchArray(SQLITE3_ASSOC);
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return $row;
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}
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private function set_uid_in_db($uid) {
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$statement0 = $this->db->prepare("INSERT OR REPLACE INTO source VALUES (1, :email, :uid, DATE(\"now\"))");
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$statement0->bindValue(':email', $this->flickr_email);
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$statement0->bindValue(':uid', $uid);
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$result = $statement0->execute();
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$row = $result->fetchArray(SQLITE3_ASSOC);
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return $row;
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}
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private function get_uid_from_flickr() {
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$uid = json_decode(file_get_contents("https://www.flickr.com/services/rest/?method=flickr.people.findByEmail&api_key=" . $this->flickr_api_key . "&find_email=" . $this->flickr_email . "&format=json&nojsoncallback=1"), true)["user"]["nsid"];
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$this->set_uid_in_db($uid);
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}
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private function get_com_en_name($sci_name) {
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if ($this->labels_flickr === null) {
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$this->labels_flickr = file(get_home() . "/BirdNET-Pi/model/labels_flickr.txt");
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}
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$engname = null;
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foreach ($this->labels_flickr as $label) {
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if (strpos($label, $sci_name) !== false) {
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$engname = trim(explode("_", $label)[1]);
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break;
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}
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}
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return $engname;
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}
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}
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