/**
* Process requested endpoint
* @return mixed Endpoint result
*/
public function endpoint_process()
{
$og_endpoint = $this->server->original_endpoint;
// Check if endpoint exists in dictionary
$og_exists = Dictionary::exists($og_endpoint);
if ($og_exists) {
try {
// Get endpoint query
$query = Dictionary::get_query($og_exists);
// Before callback function call
if ($before = Dictionary::get_before($og_exists)) {
if (is_callable($before)) {
$query['q']['q'] = call_user_func($before, $query['q']['q']);
}
}
// Check is endpoint is cacheable
$cacheable = Dictionary::is_cacheable($og_exists);
if (!$query) {
throw new APIexception('Endpoint not found', 6, 404);
} elseif ($query['method'] !== $this->server->method) {
throw new APIexception('Method mismatch. You should use ' . $query['method'], 11, 400);
}
// Request security for endpoints with security enabled
if ($query['signed']) {
if (SECURE_TYPE === "oauth1.0a") {
if (OAuth1\OAuthRequestVerifier::requestIsSigned()) {
try {
$req = new OAuth1\OAuthRequestVerifier();
if (!$req->verify()) {
throw new APIexception('Unauthorized request.', 15, 401);
}
} catch (OAuth1\OAuthException2 $e) {
throw new APIexception('OAuth error: ' . $e->getMessage(), 15, 401);
}
} else {
throw new APIexception('Unauthorized request.', 15, 401);
}
}
}
// Retrieves endpoint cache if cache enabled
if (CACHE && $cacheable) {
$cached_content = Cache::search($this->server);
if ($cached_content) {
// After callback function call
if ($after = Dictionary::get_after($og_exists)) {
if (is_callable($after)) {
$cached_content = call_user_func($after, $cached_content);
}
}
return Output::encode(json_decode($cached_content), $this->server->output, TRUE);
}
}
// If no cached content, create file if cache enabled
if (empty($cached_content)) {
$data = $this->server->data;
$filters = $this->server->args;
$res = Query::execute($query["q"], TRUE, $data, $filters);
if ($query['q']['join']) {
foreach ($query['q']['join'] as $item => $join_query) {
foreach ($res as $num => $response) {
$key = Dictionary::get_col_prefix($og_exists) . $item;
if (array_key_exists($key, $response)) {
$value = sprintf($join_query, $response[$key]);
if ($joinq = Query::execute(array("q" => $value), TRUE)) {
if (count($joinq) > 1) {
$res[$num][$key] = $joinq;
} else {
$res[$num][$key] = $joinq[0];
}
}
}
}
}
}
if (CACHE && $cacheable) {
$res = Cache::write($res);
}
// After callback function call
if ($after = Dictionary::get_after($og_exists)) {
if (is_callable($after)) {
$res = call_user_func($after, $res);
}
}
return Output::encode($res, $this->server->output);
}
} catch (APIexception $e) {
die($e->output());
}
}
}
/**
* Creates endpoint
* @param array $endpoint Endpoint to create
*/
private function create_endpoint($endpoint)
{
// Test if method set
if (!isset($endpoint['method'])) {
throw new APIexception("Unexpected Header", 2, 400);
}
$ep = explode("/", $endpoint['endpoint']);
// Test if name set
if (!isset($ep[0])) {
throw new APIexception("No endpoint", 1, 404);
}
// Test if verb
if (isset($ep[1])) {
if (preg_match('/^\\:(\\w+)/', $ep[1])) {
$verb = NULL;
} else {
$verb = $ep[1];
}
} else {
$verb = NULL;
}
// Test for filters in endpoint name
foreach ($ep as $filter) {
if (preg_match('/^\\:(\\w+)/', $filter, $result)) {
$endpoint['params']['filters'][] = $result[1];
}
}
// Sets endpoint name
$ep = $ep[0];
// Test for custom query
if (isset($endpoint['params']['query'])) {
$query = $endpoint['params']['query'];
$action = strtolower(preg_replace("/^(\\w+) .*/", "\$1", $query));
} else {
// Check if columns from table have prefix
$this->col_prefix = $endpoint['params']['col_prefix'] = isset($endpoint['params']['col_prefix']) ? $endpoint['params']['col_prefix'] : Dictionary::get_col_prefix($ep);
// Creates query
$q = new Query($endpoint['method'], $ep, $verb, $endpoint['params']);
$query = $q->get_query();
$action = $q->get_action();
}
$join_queries = array();
if (isset($endpoint['params']['join'])) {
foreach ($endpoint['params']['join'] as $k => $v) {
$cols = explode("|", $v);
$params = array();
if (isset($cols[2])) {
$params['show'] = array_map(function ($val) {
if ($val !== "id" && $val !== "updated") {
return $this->col_prefix . $val;
}
return $val;
}, explode(",", $cols[2]));
}
$params['filters'][] = $cols[1];
$join_queries[$cols[0]] = Query::construct_query("select", $k, $params);
}
}
// Sets endpoint object
$endpoint['query'] = array("q" => $query, "action" => $action, "columns" => !empty($endpoint['params']['columns']) ? $endpoint['params']['columns'] : "", "filters" => !empty($endpoint['params']['filters']) ? $endpoint['params']['filters'] : "", "limiter" => !empty($endpoint['params']['limit']) ? $endpoint['params']['limit'] : "", "join" => $join_queries);
$endpoint['params']['cacheable'] = isset($endpoint['params']['cacheable']) ? $endpoint['params']['cacheable'] : FALSE;
// Registers endpoint on dictionary
Dictionary::register($endpoint);
}
