330 lines
9.5 KiB
PHP
330 lines
9.5 KiB
PHP
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<?php
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namespace GuzzleHttp;
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use GuzzleHttp\Handler\CurlHandler;
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use GuzzleHttp\Handler\CurlMultiHandler;
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use GuzzleHttp\Handler\Proxy;
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use GuzzleHttp\Handler\StreamHandler;
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/**
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* Expands a URI template
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*
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* @param string $template URI template
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* @param array $variables Template variables
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*
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* @return string
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*/
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function uri_template($template, array $variables)
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{
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if (extension_loaded('uri_template')) {
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// @codeCoverageIgnoreStart
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return \uri_template($template, $variables);
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// @codeCoverageIgnoreEnd
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}
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static $uriTemplate;
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if (!$uriTemplate) {
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$uriTemplate = new UriTemplate();
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}
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return $uriTemplate->expand($template, $variables);
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}
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/**
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* Debug function used to describe the provided value type and class.
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*
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* @param mixed $input
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*
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* @return string Returns a string containing the type of the variable and
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* if a class is provided, the class name.
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*/
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function describe_type($input)
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{
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switch (gettype($input)) {
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case 'object':
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return 'object(' . get_class($input) . ')';
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case 'array':
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return 'array(' . count($input) . ')';
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default:
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ob_start();
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var_dump($input);
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// normalize float vs double
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return str_replace('double(', 'float(', rtrim(ob_get_clean()));
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}
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}
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/**
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* Parses an array of header lines into an associative array of headers.
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*
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* @param array $lines Header lines array of strings in the following
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* format: "Name: Value"
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* @return array
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*/
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function headers_from_lines($lines)
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{
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$headers = [];
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foreach ($lines as $line) {
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$parts = explode(':', $line, 2);
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$headers[trim($parts[0])][] = isset($parts[1])
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? trim($parts[1])
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: null;
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}
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return $headers;
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}
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/**
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* Returns a debug stream based on the provided variable.
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*
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* @param mixed $value Optional value
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*
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* @return resource
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*/
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function debug_resource($value = null)
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{
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if (is_resource($value)) {
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return $value;
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} elseif (defined('STDOUT')) {
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return STDOUT;
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}
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return fopen('php://output', 'w');
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}
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/**
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* Chooses and creates a default handler to use based on the environment.
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*
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* The returned handler is not wrapped by any default middlewares.
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*
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* @throws \RuntimeException if no viable Handler is available.
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* @return callable Returns the best handler for the given system.
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*/
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function choose_handler()
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{
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$handler = null;
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if (function_exists('curl_multi_exec') && function_exists('curl_exec')) {
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$handler = Proxy::wrapSync(new CurlMultiHandler(), new CurlHandler());
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} elseif (function_exists('curl_exec')) {
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$handler = new CurlHandler();
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} elseif (function_exists('curl_multi_exec')) {
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$handler = new CurlMultiHandler();
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}
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if (ini_get('allow_url_fopen')) {
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$handler = $handler
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? Proxy::wrapStreaming($handler, new StreamHandler())
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: new StreamHandler();
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} elseif (!$handler) {
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throw new \RuntimeException('GuzzleHttp requires cURL, the '
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. 'allow_url_fopen ini setting, or a custom HTTP handler.');
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}
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return $handler;
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}
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/**
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* Get the default User-Agent string to use with Guzzle
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*
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* @return string
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*/
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function default_user_agent()
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{
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static $defaultAgent = '';
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if (!$defaultAgent) {
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$defaultAgent = 'GuzzleHttp/' . Client::VERSION;
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if (extension_loaded('curl') && function_exists('curl_version')) {
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$defaultAgent .= ' curl/' . \curl_version()['version'];
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}
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$defaultAgent .= ' PHP/' . PHP_VERSION;
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}
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return $defaultAgent;
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}
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/**
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* Returns the default cacert bundle for the current system.
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*
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* First, the openssl.cafile and curl.cainfo php.ini settings are checked.
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* If those settings are not configured, then the common locations for
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* bundles found on Red Hat, CentOS, Fedora, Ubuntu, Debian, FreeBSD, OS X
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* and Windows are checked. If any of these file locations are found on
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* disk, they will be utilized.
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*
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* Note: the result of this function is cached for subsequent calls.
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*
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* @return string
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* @throws \RuntimeException if no bundle can be found.
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*/
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function default_ca_bundle()
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{
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static $cached = null;
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static $cafiles = [
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// Red Hat, CentOS, Fedora (provided by the ca-certificates package)
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'/etc/pki/tls/certs/ca-bundle.crt',
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// Ubuntu, Debian (provided by the ca-certificates package)
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'/etc/ssl/certs/ca-certificates.crt',
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// FreeBSD (provided by the ca_root_nss package)
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'/usr/local/share/certs/ca-root-nss.crt',
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// OS X provided by homebrew (using the default path)
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'/usr/local/etc/openssl/cert.pem',
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// Google app engine
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'/etc/ca-certificates.crt',
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// Windows?
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'C:\\windows\\system32\\curl-ca-bundle.crt',
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'C:\\windows\\curl-ca-bundle.crt',
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];
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if ($cached) {
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return $cached;
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}
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if ($ca = ini_get('openssl.cafile')) {
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return $cached = $ca;
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}
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if ($ca = ini_get('curl.cainfo')) {
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return $cached = $ca;
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}
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foreach ($cafiles as $filename) {
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if (file_exists($filename)) {
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return $cached = $filename;
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}
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}
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throw new \RuntimeException(<<< EOT
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No system CA bundle could be found in any of the the common system locations.
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PHP versions earlier than 5.6 are not properly configured to use the system's
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CA bundle by default. In order to verify peer certificates, you will need to
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supply the path on disk to a certificate bundle to the 'verify' request
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option: http://docs.guzzlephp.org/en/latest/clients.html#verify. If you do not
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need a specific certificate bundle, then Mozilla provides a commonly used CA
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bundle which can be downloaded here (provided by the maintainer of cURL):
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https://raw.githubusercontent.com/bagder/ca-bundle/master/ca-bundle.crt. Once
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you have a CA bundle available on disk, you can set the 'openssl.cafile' PHP
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ini setting to point to the path to the file, allowing you to omit the 'verify'
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request option. See http://curl.haxx.se/docs/sslcerts.html for more
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information.
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EOT
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);
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}
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/**
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* Creates an associative array of lowercase header names to the actual
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* header casing.
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*
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* @param array $headers
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*
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* @return array
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*/
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function normalize_header_keys(array $headers)
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{
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$result = [];
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foreach (array_keys($headers) as $key) {
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$result[strtolower($key)] = $key;
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}
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return $result;
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}
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/**
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* Returns true if the provided host matches any of the no proxy areas.
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*
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* This method will strip a port from the host if it is present. Each pattern
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* can be matched with an exact match (e.g., "foo.com" == "foo.com") or a
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* partial match: (e.g., "foo.com" == "baz.foo.com" and ".foo.com" ==
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* "baz.foo.com", but ".foo.com" != "foo.com").
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*
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* Areas are matched in the following cases:
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* 1. "*" (without quotes) always matches any hosts.
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* 2. An exact match.
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* 3. The area starts with "." and the area is the last part of the host. e.g.
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* '.mit.edu' will match any host that ends with '.mit.edu'.
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*
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* @param string $host Host to check against the patterns.
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* @param array $noProxyArray An array of host patterns.
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*
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* @return bool
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*/
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function is_host_in_noproxy($host, array $noProxyArray)
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{
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if (strlen($host) === 0) {
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throw new \InvalidArgumentException('Empty host provided');
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}
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// Strip port if present.
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if (strpos($host, ':')) {
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$host = explode($host, ':', 2)[0];
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}
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foreach ($noProxyArray as $area) {
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// Always match on wildcards.
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if ($area === '*') {
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return true;
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} elseif (empty($area)) {
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// Don't match on empty values.
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continue;
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} elseif ($area === $host) {
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// Exact matches.
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return true;
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} else {
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// Special match if the area when prefixed with ".". Remove any
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// existing leading "." and add a new leading ".".
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$area = '.' . ltrim($area, '.');
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if (substr($host, -(strlen($area))) === $area) {
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return true;
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}
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}
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}
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return false;
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}
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/**
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* Wrapper for json_decode that throws when an error occurs.
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*
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* @param string $json JSON data to parse
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* @param bool $assoc When true, returned objects will be converted
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* into associative arrays.
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* @param int $depth User specified recursion depth.
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* @param int $options Bitmask of JSON decode options.
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*
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* @return mixed
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* @throws \InvalidArgumentException if the JSON cannot be decoded.
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* @link http://www.php.net/manual/en/function.json-decode.php
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*/
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function json_decode($json, $assoc = false, $depth = 512, $options = 0)
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{
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$data = \json_decode($json, $assoc, $depth, $options);
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if (JSON_ERROR_NONE !== json_last_error()) {
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throw new \InvalidArgumentException(
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'json_decode error: ' . json_last_error_msg());
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}
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return $data;
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}
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/**
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* Wrapper for JSON encoding that throws when an error occurs.
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*
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* @param mixed $value The value being encoded
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* @param int $options JSON encode option bitmask
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* @param int $depth Set the maximum depth. Must be greater than zero.
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*
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* @return string
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* @throws \InvalidArgumentException if the JSON cannot be encoded.
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* @link http://www.php.net/manual/en/function.json-encode.php
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*/
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function json_encode($value, $options = 0, $depth = 512)
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{
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$json = \json_encode($value, $options, $depth);
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if (JSON_ERROR_NONE !== json_last_error()) {
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throw new \InvalidArgumentException(
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'json_encode error: ' . json_last_error_msg());
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}
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return $json;
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}
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