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added chunk support for large key number purges #133

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Jan 12, 2018
Merged

added chunk support for large key number purges #133

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30 changes: 23 additions & 7 deletions Model/Api.php
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Original file line number Diff line number Diff line change
Expand Up @@ -32,6 +32,7 @@ class Api
const FASTLY_HEADER_SOFT_PURGE = 'Fastly-Soft-Purge';
const PURGE_TIMEOUT = 10;
const PURGE_TOKEN_LIFETIME = 30;
const FASTLY_MAX_HEADER_KEY_SIZE = 256;

/**
* @var Config $config,
Expand Down Expand Up @@ -140,15 +141,30 @@ public function cleanUrl($url)
public function cleanBySurrogateKey($keys)
{
$uri = $this->_getApiServiceUri() . 'purge';
$payload = json_encode(['surrogate_keys' => $keys]);
if ($result = $this->_purge($uri, \Zend_Http_Client::POST, $payload)) {
foreach ($keys as $key) {
$this->logger->execute('surrogate key: ' . $key);
}
$num = count($keys);
if ($num >= self::FASTLY_MAX_HEADER_KEY_SIZE) {
$parts = $num / self::FASTLY_MAX_HEADER_KEY_SIZE;
$additional = ($parts > (int)$parts) ? 1 : 0;
$parts = (int)$parts + (int)$additional;
$chunks = ceil($num/$parts);
$collection = array_chunk($keys, $chunks);
} else {
$collection = [$keys];
}

if ($this->config->areWebHooksEnabled() && $this->config->canPublishKeyUrlChanges()) {
$this->sendWebHook('*clean by key on ' . join(" ", $keys) . '*');
foreach($collection as $keys) {

$payload = json_encode(['surrogate_keys' => $keys]);
if ($result = $this->_purge($uri, \Zend_Http_Client::POST, $payload)) {
foreach ($keys as $key) {
$this->logger->execute('surrogate key: ' . $key);
}
}

if ($this->config->areWebHooksEnabled() && $this->config->canPublishKeyUrlChanges()) {
$this->sendWebHook('*clean by key on ' . join(" ", $keys) . '*');
}

}

return $result;
Expand Down