"",
"country" => $options['defaultCountry'],
"minstar" => $options['defaultStars'],
"recent" => $options['defaultRecent']
), $atts);
//Don't do anything if the ID is blank
if ($atts['id'] == "") return;
//Lowercase the country code
$atts['country'] = strtolower($atts['country']);
//Retrieve data and store it
$json_data = asrv_fetch_data($atts);
//Display data
return asrv_review_output($json_data, $atts['minstar'], $atts['recent']);
}
/* Fetch data methods */
function asrv_fetch_data($atts) {
if (!file_exists(ASRV_CACHE_DIR)) {
mkdir(ASRV_CACHE_DIR, 0755);
}
//First, check if the data in cache is not too old
$cacheTime = get_option("asrv_options")["cache"] * 60 * 60;
$cacheFile = ASRV_CACHE_DIR.$atts['id'].$atts['country'].".appstore";
if (is_readable($cacheFile) && (time() - $cacheTime < filemtime($cacheFile))) {
$json_data = json_decode(file_get_contents($cacheFile));
}
//Otherwise, we download fresh data and store them
else {
//Call the URL 4 times as it may not work the first time (API error?)
$json_data = null;
for ($i=0;$i<4;$i++) {
if (function_exists('file_get_contents') && ini_get('allow_url_fopen')) {
$json_data = asrv_fetch_data_fopen($atts);
} else if (function_exists('curl_exec')) {
$json_data = asrv_fetch_data_curl($atts);
} else {
wp_die('You must have either file_get_contents() or curl_exec() enabled on your web server.
');
}
//Store JSON in its original state.
if ($json_data->feed->entry) {
file_put_contents($cacheFile, json_encode($json_data));
//Don't need to try to download anymore
break;
}
}
//If no data returned from Apple (error?), we just update the modification time of the file and load the data from the cache.
if ($json_data == null || $json_data->feed->entry == null) {
if (is_readable($cacheFile)) {
touch($cacheFile);
}
}
}
return $json_data->feed;
}
function asrv_make_store_url($atts) {
$url = str_replace(array("{country}", "{id}"), array($atts['country'], $atts['id']), ASRV_APPSTORE_URL);
$url .= "?p" . rand() . "=" . rand();
return $url;
}
function asrv_fetch_data_fopen($atts) {
$data = file_get_contents(asrv_make_store_url($atts));
return json_decode($data);
}
function asrv_fetch_data_curl($atts) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, asrv_make_store_url($atts));
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_TIMEOUT, 10);
$output = curl_exec($ch);
curl_close($ch);
return json_decode($output);
}
/* Display data methods */
function asrv_review_output($json_data, $minStar, $nbToDisplay) {
if ($json_data->entry == null) return;
//Parse App info
$appInfo = $json_data->entry[0];
$app['name'] = $appInfo->{'im:name'}->label;
$app['icon'] = asrv_get_appIcon($appInfo);
$app['url'] = $appInfo->link->attributes->href;
//Parse App reviews and get only the last X based on the number of stars
$first = true;
$reviews = array();
foreach ($json_data->entry as $review) {
//Skip first entry as it contains only app information
if ($first) {
$first = false;
continue;
}
//Parse the review and store it if it has the minimum required amount of stars
$r = asrv_get_review($review, $minStar);
if ($r) {
$reviews[] = $r;
if (count($reviews) == $nbToDisplay) {
break;
}
}
}
//Render HTML
if (count($reviews) > 0) {
return asrv_render_html($app, $reviews);
}
}
function asrv_get_appIcon($appInfo) {
foreach ($appInfo->{'im:image'} as $img) {
if ($img->attributes->height == 53) {
return $img->label;
}
}
return null;
}
function asrv_get_review($data, $minStar) {
$review = array();
$review["author"] = $data->author->name->label;
$review["rating"] = $data->{'im:rating'}->label;
$review["version"] = $data->{'im:version'}->label;
$review["title"] = $data->title->label;
$review["content"] = $data->content->label;
if ($review["rating"] >= $minStar) {
return $review;
}
}
function asrv_transform_rating($rating) {
$s1 = "" . str_repeat("★", $rating) . "";
$s2 = "" . str_repeat("★", 5 - $rating) . "";
return $s1 . $s2;
}
function asrv_render_html($app, $reviews) {
ob_start();
?>