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Cached services json file #20

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Cached services json file #20

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26a93ea
Cached services json
Oct 31, 2014
a493dbe
No server message
Oct 31, 2014
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107 changes: 97 additions & 10 deletions src/Embedly/Embedly.php
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Original file line number Diff line number Diff line change
Expand Up @@ -49,6 +49,19 @@ class Embedly {
* @var array|object
*/
protected $services = null;

/**
*
* @var string
*/
protected $services_cache_file = null;

/**
* Seconds to keep services cache
*
* @var int|null
*/
protected $services_cache_age = null;

/**
*
Expand All @@ -60,7 +73,9 @@ public function __construct(array $args = array())
'user_agent' => sprintf("Mozilla/5.0 (compatible; embedly-php/%s)", self::VERSION),
'key' => null,
'hostname' => null,
'api_version' => null
'api_version' => null,
'services_cache_file' => null,
'services_cache_age' => 86400
), $args);

if ($args['user_agent']) {
Expand All @@ -75,6 +90,17 @@ public function __construct(array $args = array())
if ($args['api_version']) {
$this->api_version = array_merge($this->api_version, $args['api_version']);
}
if ($args['services_cache_file']) {
$file = $args['services_cache_file'];
if (file_exists($file) && is_writeable($file) === false) {
throw new \RuntimeException("$file is not writable");
}

$this->services_cache_file = $file;
}
if ($args['services_cache_age']) {
$this->services_cache_age = (int) $args['services_cache_age'];
}
}

/**
Expand Down Expand Up @@ -266,19 +292,80 @@ public function apicall($version, $action, $params)
*/
public function services() {
if (!$this->services) {
$url = $this->parse_host($this->hostname);
$apiUrl = sprintf("%s1/services/php", $url['url']);
$ch = curl_init($apiUrl);
$this->setCurlOptions($ch, array(
sprintf('Host: %s', $url['hostname']),
sprintf('User-Agent: %s', $this->user_agent)
));
$res = $this->curlExec($ch);
$this->services = json_decode($res);
if ($this->services_has_cache()) {
$this->services = $this->services_from_cache();
} else {
$services = $this->services_from_server();
$this->services_store_cache($services);
$this->services = $services;
}
}

return $this->services;
}

/**
*
* @return boolean
*/
public function services_has_cache() {
$file = $this->services_cache_file;

if ($file === null) {
return false;
}

if (file_exists($file) === false) {
return false;
}

$age = time() - filemtime($file);
if ($age > $this->services_cache_age) {
return false;
}

return true;
}

/**
*
* @return array|null
*/
public function services_from_cache() {
$file = $this->services_cache_file;
return json_decode(file_get_contents($file));
}

/**
*
* @param array $services
* @return self
*/
public function services_store_cache(array $services) {
$file = $this->services_cache_file;
if ($file) {
file_put_contents($file, json_encode($services));
}

return $this;
}

/**
*
* @return array
*/
public function services_from_server() {
$url = $this->parse_host($this->hostname);
$apiUrl = sprintf("%s1/services/php", $url['url']);
$ch = curl_init($apiUrl);
$this->setCurlOptions($ch, array(
sprintf('Host: %s', $url['hostname']),
sprintf('User-Agent: %s', $this->user_agent)
));
$res = $this->curlExec($ch);
return json_decode($res);
}

/**
*
* @return string
Expand Down